diff options
| author | Scott Rifenbark <scott.m.rifenbark@intel.com> | 2012-12-11 12:07:58 -0600 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2013-01-07 14:43:25 +0000 |
| commit | ed0a240e1632682ec4c33341f3e24ad71773cdfc (patch) | |
| tree | 201557f498b77b9f51fad7e12a6009f74aca4c65 | |
| parent | af19d889ef320f9625aae42eed6688b5cc739793 (diff) | |
| download | poky-ed0a240e1632682ec4c33341f3e24ad71773cdfc.tar.gz | |
documentation: Rename of poky-ref-manual folder to ref-manual.
Changing the folder that holds the YP Reference Manual to be
"ref-manual". This will help with confustion over the manual's
intended purpose.
(From yocto-docs rev: 1106442964b5080cb0b6b3bd3af32e9407c0f7c1)
Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
214 files changed, 26016 insertions, 0 deletions
diff --git a/documentation/ref-manual/TODO b/documentation/ref-manual/TODO new file mode 100644 index 0000000000..ee0db977cc --- /dev/null +++ b/documentation/ref-manual/TODO | |||
| @@ -0,0 +1,11 @@ | |||
| 1 | Handbook Todo List: | ||
| 2 | |||
| 3 | * Document adding a new IMAGE_FEATURE to the customising images section | ||
| 4 | * Add instructions about using zaurus/openmoko emulation | ||
| 5 | * Add component overview/block diagrams | ||
| 6 | * Software Deevelopment intro should mention its software development for | ||
| 7 | intended target and could be a different arch etc and thus special case. | ||
| 8 | * Expand insane.bbclass documentation to cover tests | ||
| 9 | * Document remaining classes (see list in ref-classes) | ||
| 10 | * Document formfactor | ||
| 11 | |||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/1.3-local-configuration.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/1.3-local-configuration.html new file mode 100644 index 0000000000..d4a9f0875d --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/1.3-local-configuration.html | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>4.1.1. Local Configuration</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="moving-to-the-yocto-project-1.3-release.html" title="4.1. Moving to the Yocto Project 1.3 Release"> | ||
| 9 | <link rel="prev" href="moving-to-the-yocto-project-1.3-release.html" title="4.1. Moving to the Yocto Project 1.3 Release"> | ||
| 10 | <link rel="next" href="migration-1.3-sstate-mirrors.html" title="4.1.1.1. SSTATE_MIRRORS"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="4.1.1. Local Configuration"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="1.3-local-configuration"></a>4.1.1. Local Configuration</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | Differences include changes for | ||
| 17 | <a class="link" href="ref-variables-glos.html#var-SSTATE_MIRRORS" title="SSTATE_MIRRORS"><code class="filename">SSTATE_MIRRORS</code></a> | ||
| 18 | and <code class="filename">bblayers.conf</code>. | ||
| 19 | </p> | ||
| 20 | </div></body> | ||
| 21 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/1.3-recipes.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/1.3-recipes.html new file mode 100644 index 0000000000..69966945f2 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/1.3-recipes.html | |||
| @@ -0,0 +1,29 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>4.1.2. Recipes</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="moving-to-the-yocto-project-1.3-release.html" title="4.1. Moving to the Yocto Project 1.3 Release"> | ||
| 9 | <link rel="prev" href="migration-1.3-bblayers-conf.html" title="4.1.1.2. bblayers.conf"> | ||
| 10 | <link rel="next" href="migration-1.3-python-function-whitespace.html" title="4.1.2.1. Python Function Whitespace"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="4.1.2. Recipes"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="1.3-recipes"></a>4.1.2. Recipes</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | Differences include changes for the following: | ||
| 17 | </p> | ||
| 18 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 19 | <li class="listitem"><p>Python function whitespace</p></li> | ||
| 20 | <li class="listitem"><p><code class="filename">proto=</code> in <code class="filename">SRC_URI</code></p></li> | ||
| 21 | <li class="listitem"><p><code class="filename">nativesdk</code></p></li> | ||
| 22 | <li class="listitem"><p>Task recipes</p></li> | ||
| 23 | <li class="listitem"><p><code class="filename">IMAGE_FEATURES</code></p></li> | ||
| 24 | <li class="listitem"><p>Removed recipes</p></li> | ||
| 25 | </ul></div> | ||
| 26 | <p> | ||
| 27 | </p> | ||
| 28 | </div></body> | ||
| 29 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/build-history-image-information.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/build-history-image-information.html new file mode 100644 index 0000000000..f1b0f9e2ad --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/build-history-image-information.html | |||
| @@ -0,0 +1,80 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.4.2.2. Build History Image Information</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="understanding-what-the-build-history-contains.html" title="2.4.2. Understanding What the Build History Contains"> | ||
| 9 | <link rel="prev" href="build-history-package-information.html" title="2.4.2.1. Build History Package Information"> | ||
| 10 | <link rel="next" href="using-build-history-to-gather-image-information-only.html" title="2.4.2.3. Using Build History to Gather Image Information Only"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.4.2.2. Build History Image Information"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="build-history-image-information"></a>2.4.2.2. Build History Image Information</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | The files produced for each image are as follows: | ||
| 17 | </p> | ||
| 18 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 19 | <li class="listitem"><p><span class="emphasis"><em>build-id:</em></span> | ||
| 20 | Human-readable information about the build configuration | ||
| 21 | and metadata source revisions.</p></li> | ||
| 22 | <li class="listitem"><p><span class="emphasis"><em>*.dot:</em></span> | ||
| 23 | Dependency graphs for the image that are | ||
| 24 | compatible with <code class="filename">graphviz</code>. | ||
| 25 | </p></li> | ||
| 26 | <li class="listitem"><p><span class="emphasis"><em>files-in-image.txt:</em></span> | ||
| 27 | A list of files in the image with permissions, | ||
| 28 | owner, group, size, and symlink information. | ||
| 29 | </p></li> | ||
| 30 | <li class="listitem"><p><span class="emphasis"><em>image-info.txt:</em></span> | ||
| 31 | A text file containing name-value pairs with information | ||
| 32 | about the image. | ||
| 33 | See the following listing example for more information. | ||
| 34 | </p></li> | ||
| 35 | <li class="listitem"><p><span class="emphasis"><em>installed-package-names.txt:</em></span> | ||
| 36 | A list of installed packages by name only.</p></li> | ||
| 37 | <li class="listitem"><p><span class="emphasis"><em>installed-package-sizes.txt:</em></span> | ||
| 38 | A list of installed packages ordered by size. | ||
| 39 | </p></li> | ||
| 40 | <li class="listitem"><p><span class="emphasis"><em>installed-packages.txt:</em></span> | ||
| 41 | A list of installed packages with fuill package | ||
| 42 | filenames.</p></li> | ||
| 43 | </ul></div> | ||
| 44 | <p> | ||
| 45 | </p> | ||
| 46 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 47 | <h3 class="title">Note</h3> | ||
| 48 | Installed package information is able to be gathered and | ||
| 49 | produced even if package management is disabled for the final | ||
| 50 | image. | ||
| 51 | </div> | ||
| 52 | <p> | ||
| 53 | </p> | ||
| 54 | <p> | ||
| 55 | Here is an example of <code class="filename">image-info.txt</code>: | ||
| 56 | </p> | ||
| 57 | <pre class="literallayout"> | ||
| 58 | DISTRO = poky | ||
| 59 | DISTRO_VERSION = 1.1+snapshot-20120207 | ||
| 60 | USER_CLASSES = image-mklibs image-prelink | ||
| 61 | IMAGE_CLASSES = image_types | ||
| 62 | IMAGE_FEATURES = debug-tweaks x11-base apps-x11-core \ | ||
| 63 | package-management ssh-server-dropbear package-management | ||
| 64 | IMAGE_LINGUAS = en-us en-gb | ||
| 65 | IMAGE_INSTALL = task-core-boot task-base-extended | ||
| 66 | BAD_RECOMMENDATIONS = | ||
| 67 | ROOTFS_POSTPROCESS_COMMAND = buildhistory_get_image_installed ; rootfs_update_timestamp ; | ||
| 68 | IMAGE_POSTPROCESS_COMMAND = buildhistory_get_imageinfo ; | ||
| 69 | IMAGESIZE = 171816 | ||
| 70 | </pre> | ||
| 71 | <p> | ||
| 72 | Other than <code class="filename">IMAGESIZE</code>, which is the | ||
| 73 | total size of the files in the image in Kbytes, the | ||
| 74 | name-value pairs are variables that may have influenced the | ||
| 75 | content of the image. | ||
| 76 | This information is often useful when you are trying to determine | ||
| 77 | why a change in the package or file listings has occurred. | ||
| 78 | </p> | ||
| 79 | </div></body> | ||
| 80 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/build-history-package-information.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/build-history-package-information.html new file mode 100644 index 0000000000..370481da75 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/build-history-package-information.html | |||
| @@ -0,0 +1,58 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.4.2.1. Build History Package Information</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="understanding-what-the-build-history-contains.html" title="2.4.2. Understanding What the Build History Contains"> | ||
| 9 | <link rel="prev" href="understanding-what-the-build-history-contains.html" title="2.4.2. Understanding What the Build History Contains"> | ||
| 10 | <link rel="next" href="build-history-image-information.html" title="2.4.2.2. Build History Image Information"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.4.2.1. Build History Package Information"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="build-history-package-information"></a>2.4.2.1. Build History Package Information</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | The history for each package contains a text file that has | ||
| 17 | name-value pairs with information about the package. | ||
| 18 | For example, <code class="filename">buildhistory/packages/core2-poky-linux/busybox/busybox/latest</code> | ||
| 19 | contains the following: | ||
| 20 | </p> | ||
| 21 | <pre class="literallayout"> | ||
| 22 | PV = 1.19.3 | ||
| 23 | PR = r3 | ||
| 24 | RDEPENDS = update-rc.d eglibc (>= 2.13) | ||
| 25 | RRECOMMENDS = busybox-syslog busybox-udhcpc | ||
| 26 | PKGSIZE = 564701 | ||
| 27 | FILES = /usr/bin/* /usr/sbin/* /usr/libexec/* /usr/lib/lib*.so.* \ | ||
| 28 | /etc /com /var /bin/* /sbin/* /lib/*.so.* /usr/share/busybox \ | ||
| 29 | /usr/lib/busybox/* /usr/share/pixmaps /usr/share/applications \ | ||
| 30 | /usr/share/idl /usr/share/omf /usr/share/sounds /usr/lib/bonobo/servers | ||
| 31 | FILELIST = /etc/busybox.links /etc/init.d/hwclock.sh /bin/busybox /bin/sh | ||
| 32 | </pre> | ||
| 33 | <p> | ||
| 34 | Most of these name-value pairs corresponds to variables used | ||
| 35 | to produce the package. | ||
| 36 | The exceptions are <code class="filename">FILELIST</code>, which is the | ||
| 37 | actual list of files in the package, and | ||
| 38 | <code class="filename">PKGSIZE</code>, which is the total size of files | ||
| 39 | in the package in bytes. | ||
| 40 | </p> | ||
| 41 | <p> | ||
| 42 | There is also a file corresponding to the recipe from which the | ||
| 43 | package came (e.g. | ||
| 44 | <code class="filename">buildhistory/packages/core2-poky-linux/busybox/latest</code>): | ||
| 45 | </p> | ||
| 46 | <pre class="literallayout"> | ||
| 47 | PV = 1.19.3 | ||
| 48 | PR = r3 | ||
| 49 | DEPENDS = virtual/i586-poky-linux-gcc virtual/i586-poky-linux-compilerlibs \ | ||
| 50 | virtual/libc update-rc.d-native | ||
| 51 | PACKAGES = busybox-httpd busybox-udhcpd busybox-udhcpc busybox-syslog \ | ||
| 52 | busybox-mdev busybox-dbg busybox busybox-doc busybox-dev \ | ||
| 53 | busybox-staticdev busybox-locale | ||
| 54 | </pre> | ||
| 55 | <p> | ||
| 56 | </p> | ||
| 57 | </div></body> | ||
| 58 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/build-overview.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/build-overview.html new file mode 100644 index 0000000000..4ee4185ba9 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/build-overview.html | |||
| @@ -0,0 +1,61 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.1.1. Build Overview</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-build.html" title="2.1. Running a Build"> | ||
| 9 | <link rel="prev" href="usingpoky-build.html" title="2.1. Running a Build"> | ||
| 10 | <link rel="next" href="building-an-image-using-gpl-components.html" title="2.1.2. Building an Image Using GPL Components"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.1.1. Build Overview"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="build-overview"></a>2.1.1. Build Overview</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | The first thing you need to do is set up the OpenEmbedded build environment by sourcing | ||
| 17 | the <a class="link" href="structure-core-script.html" title="5.1.10. oe-init-build-env">environment setup script</a> as follows: | ||
| 18 | </p> | ||
| 19 | <pre class="literallayout"> | ||
| 20 | $ source oe-init-build-env [build_dir] | ||
| 21 | </pre> | ||
| 22 | <p> | ||
| 23 | </p> | ||
| 24 | <p> | ||
| 25 | The <code class="filename">build_dir</code> is optional and specifies the directory the | ||
| 26 | OpenEmbedded build system uses for the build - | ||
| 27 | the <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>. | ||
| 28 | If you do not specify a Build Directory it defaults to <code class="filename">build</code> | ||
| 29 | in your current working directory. | ||
| 30 | A common practice is to use a different Build Directory for different targets. | ||
| 31 | For example, <code class="filename">~/build/x86</code> for a <code class="filename">qemux86</code> | ||
| 32 | target, and <code class="filename">~/build/arm</code> for a <code class="filename">qemuarm</code> target. | ||
| 33 | See <a class="link" href="structure-core-script.html" title="5.1.10. oe-init-build-env">oe-init-build-env</a> | ||
| 34 | for more information on this script. | ||
| 35 | </p> | ||
| 36 | <p> | ||
| 37 | Once the build environment is set up, you can build a target using: | ||
| 38 | </p> | ||
| 39 | <pre class="literallayout"> | ||
| 40 | $ bitbake <target> | ||
| 41 | </pre> | ||
| 42 | <p> | ||
| 43 | </p> | ||
| 44 | <p> | ||
| 45 | The <code class="filename">target</code> is the name of the recipe you want to build. | ||
| 46 | Common targets are the images in <code class="filename">meta/recipes-core/images</code>, | ||
| 47 | <code class="filename">/meta/recipes-sato/images</code>, etc. all found in the | ||
| 48 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 49 | Or, the target can be the name of a recipe for a specific piece of software such as | ||
| 50 | <span class="application">busybox</span>. | ||
| 51 | For more details about the images the OpenEmbedded build system supports, see the | ||
| 52 | "<a class="link" href="ref-images.html" title="Chapter 8. Images">Images</a>" chapter. | ||
| 53 | </p> | ||
| 54 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 55 | <h3 class="title">Note</h3> | ||
| 56 | Building an image without GNU General Public License Version 3 (GPLv3) components | ||
| 57 | is only supported for minimal and base images. | ||
| 58 | See the "<a class="link" href="ref-images.html" title="Chapter 8. Images">Images</a>" chapter for more information. | ||
| 59 | </div> | ||
| 60 | </div></body> | ||
| 61 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/building-an-image-using-gpl-components.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/building-an-image-using-gpl-components.html new file mode 100644 index 0000000000..12073d58d8 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/building-an-image-using-gpl-components.html | |||
| @@ -0,0 +1,23 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.1.2. Building an Image Using GPL Components</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-build.html" title="2.1. Running a Build"> | ||
| 9 | <link rel="prev" href="build-overview.html" title="2.1.1. Build Overview"> | ||
| 10 | <link rel="next" href="usingpoky-install.html" title="2.2. Installing and Using the Result"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.1.2. Building an Image Using GPL Components"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="building-an-image-using-gpl-components"></a>2.1.2. Building an Image Using GPL Components</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | When building an image using GPL components, you need to maintain your original | ||
| 17 | settings and not switch back and forth applying different versions of the GNU | ||
| 18 | General Public License. | ||
| 19 | If you rebuild using different versions of GPL, dependency errors might occur | ||
| 20 | due to some components not being rebuilt. | ||
| 21 | </p> | ||
| 22 | </div></body> | ||
| 23 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/centos-packages.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/centos-packages.html new file mode 100644 index 0000000000..05463bc93a --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/centos-packages.html | |||
| @@ -0,0 +1,69 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>1.3.2.4. CentOS Packages</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="required-packages-for-the-host-development-system.html" title="1.3.2. Required Packages for the Host Development System"> | ||
| 9 | <link rel="prev" href="opensuse-packages.html" title="1.3.2.3. OpenSUSE Packages"> | ||
| 10 | <link rel="next" href="intro-getit.html" title="1.4. Obtaining the Yocto Project"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="1.3.2.4. CentOS Packages"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="centos-packages"></a>1.3.2.4. CentOS Packages</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | The following list shows the required packages by function | ||
| 17 | given a supported CentOS Linux distribution: | ||
| 18 | </p> | ||
| 19 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 20 | <li class="listitem"> | ||
| 21 | <p><span class="emphasis"><em>Essentials:</em></span> | ||
| 22 | Packages needed to build an image for a headless | ||
| 23 | system: | ||
| 24 | </p> | ||
| 25 | <pre class="literallayout"> | ||
| 26 | $ sudo yum -y install gawk make wget tar bzip2 gzip python unzip perl patch \ | ||
| 27 | diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath | ||
| 28 | </pre> | ||
| 29 | </li> | ||
| 30 | <li class="listitem"> | ||
| 31 | <p><span class="emphasis"><em>Graphical Extras:</em></span> | ||
| 32 | Packages recommended if the host system has graphics support: | ||
| 33 | </p> | ||
| 34 | <pre class="literallayout"> | ||
| 35 | $ sudo yum -y install SDL-devel xterm | ||
| 36 | </pre> | ||
| 37 | </li> | ||
| 38 | <li class="listitem"> | ||
| 39 | <p><span class="emphasis"><em>Documentation:</em></span> | ||
| 40 | Packages needed if you are going to build out the | ||
| 41 | Yocto Project documentation manuals: | ||
| 42 | </p> | ||
| 43 | <pre class="literallayout"> | ||
| 44 | $ sudo yum -y install make docbook-style-dsssl docbook-style-xsl \ | ||
| 45 | docbook-dtds docbook-utils fop libxslt | ||
| 46 | </pre> | ||
| 47 | </li> | ||
| 48 | <li class="listitem"> | ||
| 49 | <p><span class="emphasis"><em>ADT Installer Extras:</em></span> | ||
| 50 | Packages needed if you are going to be using the | ||
| 51 | <a class="link" href="../adt-manual/using-the-adt-installer.html" target="_self">Application Development Toolkit (ADT) Installer</a>: | ||
| 52 | </p> | ||
| 53 | <pre class="literallayout"> | ||
| 54 | $ sudo yum -y install autoconf automake libtool glib2-devel | ||
| 55 | </pre> | ||
| 56 | </li> | ||
| 57 | </ul></div> | ||
| 58 | <p> | ||
| 59 | </p> | ||
| 60 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 61 | <h3 class="title">Note</h3>Depending on the CentOS version you are using, other requirements | ||
| 62 | and dependencies might exist. | ||
| 63 | For details, you should look at the CentOS sections on the | ||
| 64 | <a class="ulink" href="https://wiki.yoctoproject.org/wiki/Poky/GettingStarted/Dependencies" target="_self">Poky/GettingStarted/Dependencies</a> | ||
| 65 | wiki page.</div> | ||
| 66 | <p> | ||
| 67 | </p> | ||
| 68 | </div></body> | ||
| 69 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/checksums.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/checksums.html new file mode 100644 index 0000000000..5dccce93b9 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/checksums.html | |||
| @@ -0,0 +1,164 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.2.2. Checksums (Signatures)</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="shared-state-cache.html" title="3.2. Shared State Cache"> | ||
| 9 | <link rel="prev" href="overall-architecture.html" title="3.2.1. Overall Architecture"> | ||
| 10 | <link rel="next" href="shared-state.html" title="3.2.3. Shared State"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.2.2. Checksums (Signatures)"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="checksums"></a>3.2.2. Checksums (Signatures)</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | The shared state code uses a checksum, which is a unique signature of a task's | ||
| 17 | inputs, to determine if a task needs to be run again. | ||
| 18 | Because it is a change in a task's inputs that triggers a rerun, the process | ||
| 19 | needs to detect all the inputs to a given task. | ||
| 20 | For shell tasks, this turns out to be fairly easy because | ||
| 21 | the build process generates a "run" shell script for each task and | ||
| 22 | it is possible to create a checksum that gives you a good idea of when | ||
| 23 | the task's data changes. | ||
| 24 | </p> | ||
| 25 | <p> | ||
| 26 | To complicate the problem, there are things that should not be included in | ||
| 27 | the checksum. | ||
| 28 | First, there is the actual specific build path of a given task - | ||
| 29 | the <code class="filename">WORKDIR</code>. | ||
| 30 | It does not matter if the working directory changes because it should not | ||
| 31 | affect the output for target packages. | ||
| 32 | Also, the build process has the objective of making native/cross packages relocatable. | ||
| 33 | The checksum therefore needs to exclude <code class="filename">WORKDIR</code>. | ||
| 34 | The simplistic approach for excluding the working directory is to set | ||
| 35 | <code class="filename">WORKDIR</code> to some fixed value and create the checksum | ||
| 36 | for the "run" script. | ||
| 37 | </p> | ||
| 38 | <p> | ||
| 39 | Another problem results from the "run" scripts containing functions that | ||
| 40 | might or might not get called. | ||
| 41 | The incremental build solution contains code that figures out dependencies | ||
| 42 | between shell functions. | ||
| 43 | This code is used to prune the "run" scripts down to the minimum set, | ||
| 44 | thereby alleviating this problem and making the "run" scripts much more | ||
| 45 | readable as a bonus. | ||
| 46 | </p> | ||
| 47 | <p> | ||
| 48 | So far we have solutions for shell scripts. | ||
| 49 | What about python tasks? | ||
| 50 | The same approach applies even though these tasks are more difficult. | ||
| 51 | The process needs to figure out what variables a python function accesses | ||
| 52 | and what functions it calls. | ||
| 53 | Again, the incremental build solution contains code that first figures out | ||
| 54 | the variable and function dependencies, and then creates a checksum for the data | ||
| 55 | used as the input to the task. | ||
| 56 | </p> | ||
| 57 | <p> | ||
| 58 | Like the <code class="filename">WORKDIR</code> case, situations exist where dependencies | ||
| 59 | should be ignored. | ||
| 60 | For these cases, you can instruct the build process to ignore a dependency | ||
| 61 | by using a line like the following: | ||
| 62 | </p> | ||
| 63 | <pre class="literallayout"> | ||
| 64 | PACKAGE_ARCHS[vardepsexclude] = "MACHINE" | ||
| 65 | </pre> | ||
| 66 | <p> | ||
| 67 | This example ensures that the <code class="filename">PACKAGE_ARCHS</code> variable does not | ||
| 68 | depend on the value of <code class="filename">MACHINE</code>, even if it does reference it. | ||
| 69 | </p> | ||
| 70 | <p> | ||
| 71 | Equally, there are cases where we need to add dependencies BitBake is not able to find. | ||
| 72 | You can accomplish this by using a line like the following: | ||
| 73 | </p> | ||
| 74 | <pre class="literallayout"> | ||
| 75 | PACKAGE_ARCHS[vardeps] = "MACHINE" | ||
| 76 | </pre> | ||
| 77 | <p> | ||
| 78 | This example explicitly adds the <code class="filename">MACHINE</code> variable as a | ||
| 79 | dependency for <code class="filename">PACKAGE_ARCHS</code>. | ||
| 80 | </p> | ||
| 81 | <p> | ||
| 82 | Consider a case with inline python, for example, where BitBake is not | ||
| 83 | able to figure out dependencies. | ||
| 84 | When running in debug mode (i.e. using <code class="filename">-DDD</code>), BitBake | ||
| 85 | produces output when it discovers something for which it cannot figure out | ||
| 86 | dependencies. | ||
| 87 | The Yocto Project team has currently not managed to cover those dependencies | ||
| 88 | in detail and is aware of the need to fix this situation. | ||
| 89 | </p> | ||
| 90 | <p> | ||
| 91 | Thus far, this section has limited discussion to the direct inputs into a task. | ||
| 92 | Information based on direct inputs is referred to as the "basehash" in the | ||
| 93 | code. | ||
| 94 | However, there is still the question of a task's indirect inputs - the | ||
| 95 | things that were already built and present in the Build Directory. | ||
| 96 | The checksum (or signature) for a particular task needs to add the hashes | ||
| 97 | of all the tasks on which the particular task depends. | ||
| 98 | Choosing which dependencies to add is a policy decision. | ||
| 99 | However, the effect is to generate a master checksum that combines the basehash | ||
| 100 | and the hashes of the task's dependencies. | ||
| 101 | </p> | ||
| 102 | <p> | ||
| 103 | At the code level, there are a variety of ways both the basehash and the | ||
| 104 | dependent task hashes can be influenced. | ||
| 105 | Within the BitBake configuration file, we can give BitBake some extra information | ||
| 106 | to help it construct the basehash. | ||
| 107 | The following statements effectively result in a list of global variable | ||
| 108 | dependency excludes - variables never included in any checksum: | ||
| 109 | </p> | ||
| 110 | <pre class="literallayout"> | ||
| 111 | BB_HASHBASE_WHITELIST ?= "TMPDIR FILE PATH PWD BB_TASKHASH BBPATH" | ||
| 112 | BB_HASHBASE_WHITELIST += "DL_DIR SSTATE_DIR THISDIR FILESEXTRAPATHS" | ||
| 113 | BB_HASHBASE_WHITELIST += "FILE_DIRNAME HOME LOGNAME SHELL TERM USER" | ||
| 114 | BB_HASHBASE_WHITELIST += "FILESPATH USERNAME STAGING_DIR_HOST STAGING_DIR_TARGET" | ||
| 115 | </pre> | ||
| 116 | <p> | ||
| 117 | The previous example actually excludes | ||
| 118 | <a class="link" href="ref-variables-glos.html#var-WORKDIR" title="WORKDIR"><code class="filename">WORKDIR</code></a> | ||
| 119 | since it is actually constructed as a path within | ||
| 120 | <a class="link" href="ref-variables-glos.html#var-TMPDIR" title="TMPDIR"><code class="filename">TMPDIR</code></a>, which is on | ||
| 121 | the whitelist. | ||
| 122 | </p> | ||
| 123 | <p> | ||
| 124 | The rules for deciding which hashes of dependent tasks to include through | ||
| 125 | dependency chains are more complex and are generally accomplished with a | ||
| 126 | python function. | ||
| 127 | The code in <code class="filename">meta/lib/oe/sstatesig.py</code> shows two examples | ||
| 128 | of this and also illustrates how you can insert your own policy into the system | ||
| 129 | if so desired. | ||
| 130 | This file defines the two basic signature generators <code class="filename">OE-Core</code> | ||
| 131 | uses: "OEBasic" and "OEBasicHash". | ||
| 132 | By default, there is a dummy "noop" signature handler enabled in BitBake. | ||
| 133 | This means that behavior is unchanged from previous versions. | ||
| 134 | <code class="filename">OE-Core</code> uses the "OEBasic" signature handler by default | ||
| 135 | through this setting in the <code class="filename">bitbake.conf</code> file: | ||
| 136 | </p> | ||
| 137 | <pre class="literallayout"> | ||
| 138 | BB_SIGNATURE_HANDLER ?= "OEBasic" | ||
| 139 | </pre> | ||
| 140 | <p> | ||
| 141 | The "OEBasicHash" <code class="filename">BB_SIGNATURE_HANDLER</code> is the same as the | ||
| 142 | "OEBasic" version but adds the task hash to the stamp files. | ||
| 143 | This results in any metadata change that changes the task hash, automatically | ||
| 144 | causing the task to be run again. | ||
| 145 | This removes the need to bump <a class="link" href="ref-variables-glos.html#var-PR" title="PR"><code class="filename">PR</code></a> | ||
| 146 | values and changes to metadata automatically ripple across the build. | ||
| 147 | Currently, this behavior is not the default behavior for <code class="filename">OE-Core</code> | ||
| 148 | but is the default in <code class="filename">poky</code>. | ||
| 149 | </p> | ||
| 150 | <p> | ||
| 151 | It is also worth noting that the end result of these signature generators is to | ||
| 152 | make some dependency and hash information available to the build. | ||
| 153 | This information includes: | ||
| 154 | </p> | ||
| 155 | <pre class="literallayout"> | ||
| 156 | BB_BASEHASH_task-<taskname> - the base hashes for each task in the recipe | ||
| 157 | BB_BASEHASH_<filename:taskname> - the base hashes for each dependent task | ||
| 158 | BBHASHDEPS_<filename:taskname> - The task dependencies for each task | ||
| 159 | BB_TASKHASH - the hash of the currently running task | ||
| 160 | </pre> | ||
| 161 | <p> | ||
| 162 | </p> | ||
| 163 | </div></body> | ||
| 164 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/debugging.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/debugging.html new file mode 100644 index 0000000000..80a19f98a4 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/debugging.html | |||
| @@ -0,0 +1,43 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.2.4.1. Debugging</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="tips-and-tricks.html" title="3.2.4. Tips and Tricks"> | ||
| 9 | <link rel="prev" href="tips-and-tricks.html" title="3.2.4. Tips and Tricks"> | ||
| 10 | <link rel="next" href="invalidating-shared-state.html" title="3.2.4.2. Invalidating Shared State"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.2.4.1. Debugging"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="debugging"></a>3.2.4.1. Debugging</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | When things go wrong, debugging needs to be straightforward. | ||
| 17 | Because of this, the Yocto Project team included strong debugging | ||
| 18 | tools: | ||
| 19 | </p> | ||
| 20 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 21 | <li class="listitem"><p>Whenever a shared state package is written out, so is a | ||
| 22 | corresponding <code class="filename">.siginfo</code> file. | ||
| 23 | This practice results in a pickled python database of all | ||
| 24 | the metadata that went into creating the hash for a given shared state | ||
| 25 | package.</p></li> | ||
| 26 | <li class="listitem"><p>If BitBake is run with the <code class="filename">--dump-signatures</code> | ||
| 27 | (or <code class="filename">-S</code>) option, BitBake dumps out | ||
| 28 | <code class="filename">.siginfo</code> files in | ||
| 29 | the stamp directory for every task it would have executed instead of | ||
| 30 | building the specified target package.</p></li> | ||
| 31 | <li class="listitem"><p>There is a <code class="filename">bitbake-diffsigs</code> command that | ||
| 32 | can process these <code class="filename">.siginfo</code> files. | ||
| 33 | If one file is specified, it will dump out the dependency | ||
| 34 | information in the file. | ||
| 35 | If two files are specified, it will compare the two files and dump out | ||
| 36 | the differences between the two. | ||
| 37 | This allows the question of "What changed between X and Y?" to be | ||
| 38 | answered easily.</p></li> | ||
| 39 | </ul></div> | ||
| 40 | <p> | ||
| 41 | </p> | ||
| 42 | </div></body> | ||
| 43 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/detailed-supported-distros.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/detailed-supported-distros.html new file mode 100644 index 0000000000..6222ae54cf --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/detailed-supported-distros.html | |||
| @@ -0,0 +1,45 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>1.3.1. Supported Linux Distributions</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="intro-requirements.html" title="1.3. System Requirements"> | ||
| 9 | <link rel="prev" href="intro-requirements.html" title="1.3. System Requirements"> | ||
| 10 | <link rel="next" href="required-packages-for-the-host-development-system.html" title="1.3.2. Required Packages for the Host Development System"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="1.3.1. Supported Linux Distributions"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="detailed-supported-distros"></a>1.3.1. Supported Linux Distributions</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | Currently, the Yocto Project is supported on the following distributions: | ||
| 17 | </p> | ||
| 18 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 19 | <li class="listitem"><p>Ubuntu 10.04.4 LTS</p></li> | ||
| 20 | <li class="listitem"><p>Ubuntu 11.10</p></li> | ||
| 21 | <li class="listitem"><p>Ubuntu 12.04.1 LTS</p></li> | ||
| 22 | <li class="listitem"><p>Ubuntu 12.04.1 LTS</p></li> | ||
| 23 | <li class="listitem"><p>Ubuntu 12.10</p></li> | ||
| 24 | <li class="listitem"><p>Fedora release 16 (Verne)</p></li> | ||
| 25 | <li class="listitem"><p>Fedora release 17 (Beefy Miracle)</p></li> | ||
| 26 | <li class="listitem"><p>Fedora release 18 (Spherical Cow)</p></li> | ||
| 27 | <li class="listitem"><p>CentOS release 5.6 (Final)</p></li> | ||
| 28 | <li class="listitem"><p>CentOS release 5.7 (Final)</p></li> | ||
| 29 | <li class="listitem"><p>CentOS release 5.8 (Final)</p></li> | ||
| 30 | <li class="listitem"><p>CentOS release 6.3 (Final)</p></li> | ||
| 31 | <li class="listitem"><p>Debian GNU/Linux 6.0.6 (squeeze)</p></li> | ||
| 32 | <li class="listitem"><p>openSUSE 11.4</p></li> | ||
| 33 | <li class="listitem"><p>openSUSE 12.1</p></li> | ||
| 34 | <li class="listitem"><p>openSUSE 12.2</p></li> | ||
| 35 | </ul></div> | ||
| 36 | <p> | ||
| 37 | </p> | ||
| 38 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 39 | <h3 class="title">Note</h3> | ||
| 40 | For additional information on distributions that support the | ||
| 41 | Yocto Project, see the | ||
| 42 | <a class="ulink" href="https://wiki.yoctoproject.org/wiki/Distribution_Support" target="_self">Distribution Support</a> wiki page. | ||
| 43 | </div> | ||
| 44 | </div></body> | ||
| 45 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/enabling-and-disabling-build-history.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/enabling-and-disabling-build-history.html new file mode 100644 index 0000000000..06be8f5332 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/enabling-and-disabling-build-history.html | |||
| @@ -0,0 +1,62 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.4.1. Enabling and Disabling Build History</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="maintaining-build-output-quality.html" title="2.4. Maintaining Build Output Quality"> | ||
| 9 | <link rel="prev" href="maintaining-build-output-quality.html" title="2.4. Maintaining Build Output Quality"> | ||
| 10 | <link rel="next" href="understanding-what-the-build-history-contains.html" title="2.4.2. Understanding What the Build History Contains"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.4.1. Enabling and Disabling Build History"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="enabling-and-disabling-build-history"></a>2.4.1. Enabling and Disabling Build History</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | Build history is disabled by default. | ||
| 17 | To enable it, add the following statements to the end of your | ||
| 18 | <code class="filename">conf/local.conf</code> file found in the | ||
| 19 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>: | ||
| 20 | </p> | ||
| 21 | <pre class="literallayout"> | ||
| 22 | INHERIT += "buildhistory" | ||
| 23 | BUILDHISTORY_COMMIT = "1" | ||
| 24 | </pre> | ||
| 25 | <p> | ||
| 26 | Enabling build history as previously described | ||
| 27 | causes the build process to collect build | ||
| 28 | output information and commit it to a local | ||
| 29 | <a class="link" href="../dev-manual/git.html" target="_self">Git</a> repository. | ||
| 30 | </p> | ||
| 31 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 32 | <h3 class="title">Note</h3> | ||
| 33 | Enabling build history increases your build times slightly, | ||
| 34 | particularly for images, and increases the amount of disk | ||
| 35 | space used during the build. | ||
| 36 | </div> | ||
| 37 | <p> | ||
| 38 | </p> | ||
| 39 | <p> | ||
| 40 | You can disable build history by removing the previous statements | ||
| 41 | from your <code class="filename">conf/local.conf</code> file. | ||
| 42 | However, you should realize that enabling and disabling | ||
| 43 | build history in this manner can change the | ||
| 44 | <code class="filename">do_package</code> task checksums, which if you | ||
| 45 | are using the OEBasicHash signature generator (the default | ||
| 46 | for many current distro configurations including | ||
| 47 | <code class="filename">DISTRO = "poky"</code> and | ||
| 48 | <code class="filename">DISTRO = ""</code>) will result in the packaging | ||
| 49 | tasks being re-run during the subsequent build. | ||
| 50 | </p> | ||
| 51 | <p> | ||
| 52 | To disable the build history functionality without causing the | ||
| 53 | packaging tasks to be re-run, add just this statement to your | ||
| 54 | <code class="filename">conf/local.conf</code> file: | ||
| 55 | </p> | ||
| 56 | <pre class="literallayout"> | ||
| 57 | BUILDHISTORY_FEATURES = "" | ||
| 58 | </pre> | ||
| 59 | <p> | ||
| 60 | </p> | ||
| 61 | </div></body> | ||
| 62 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/enabling-commercially-licensed-recipes.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/enabling-commercially-licensed-recipes.html new file mode 100644 index 0000000000..9ecf3cc128 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/enabling-commercially-licensed-recipes.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.4.2. Enabling Commercially Licensed Recipes</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="licenses.html" title="3.4. Licenses"> | ||
| 9 | <link rel="prev" href="usingpoky-LIC_FILES_CHKSUM-explanation-of-syntax.html" title="3.4.1.2. Explanation of Syntax"> | ||
| 10 | <link rel="next" href="license-flag-matching.html" title="3.4.2.1. License Flag Matching"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.4.2. Enabling Commercially Licensed Recipes"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="enabling-commercially-licensed-recipes"></a>3.4.2. Enabling Commercially Licensed Recipes</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | By default, the OpenEmbedded build system disables | ||
| 17 | components that have commercial or other special licensing | ||
| 18 | requirements. | ||
| 19 | Such requirements are defined on a | ||
| 20 | recipe-by-recipe basis through the <code class="filename">LICENSE_FLAGS</code> variable | ||
| 21 | definition in the affected recipe. | ||
| 22 | For instance, the | ||
| 23 | <code class="filename">$HOME/poky/meta/recipes-multimedia/gstreamer/gst-plugins-ugly</code> | ||
| 24 | recipe contains the following statement: | ||
| 25 | </p> | ||
| 26 | <pre class="literallayout"> | ||
| 27 | LICENSE_FLAGS = "commercial" | ||
| 28 | </pre> | ||
| 29 | <p> | ||
| 30 | Here is a slightly more complicated example that contains both an | ||
| 31 | explicit recipe name and version (after variable expansion): | ||
| 32 | </p> | ||
| 33 | <pre class="literallayout"> | ||
| 34 | LICENSE_FLAGS = "license_${PN}_${PV}" | ||
| 35 | </pre> | ||
| 36 | <p> | ||
| 37 | In order for a component restricted by a <code class="filename">LICENSE_FLAGS</code> | ||
| 38 | definition to be enabled and included in an image, it | ||
| 39 | needs to have a matching entry in the global | ||
| 40 | <code class="filename">LICENSE_FLAGS_WHITELIST</code> variable, which is a variable | ||
| 41 | typically defined in your <code class="filename">local.conf</code> file. | ||
| 42 | For example, to enable | ||
| 43 | the <code class="filename">$HOME/poky/meta/recipes-multimedia/gstreamer/gst-plugins-ugly</code> | ||
| 44 | package, you could add either the string | ||
| 45 | "commercial_gst-plugins-ugly" or the more general string | ||
| 46 | "commercial" to <code class="filename">LICENSE_FLAGS_WHITELIST</code>. | ||
| 47 | See the | ||
| 48 | "<a class="link" href="license-flag-matching.html" title="3.4.2.1. License Flag Matching">License Flag Matching</a>" section | ||
| 49 | for a full explanation of how <code class="filename">LICENSE_FLAGS</code> matching works. | ||
| 50 | Here is the example: | ||
| 51 | </p> | ||
| 52 | <pre class="literallayout"> | ||
| 53 | LICENSE_FLAGS_WHITELIST = "commercial_gst-plugins-ugly" | ||
| 54 | </pre> | ||
| 55 | <p> | ||
| 56 | Likewise, to additionally enable the package built from the recipe containing | ||
| 57 | <code class="filename">LICENSE_FLAGS = "license_${PN}_${PV}"</code>, and assuming | ||
| 58 | that the actual recipe name was <code class="filename">emgd_1.10.bb</code>, | ||
| 59 | the following string would enable that package as well as | ||
| 60 | the original <code class="filename">gst-plugins-ugly</code> package: | ||
| 61 | </p> | ||
| 62 | <pre class="literallayout"> | ||
| 63 | LICENSE_FLAGS_WHITELIST = "commercial_gst-plugins-ugly license_emgd_1.10" | ||
| 64 | </pre> | ||
| 65 | <p> | ||
| 66 | As a convenience, you do not need to specify the complete license string | ||
| 67 | in the whitelist for every package. | ||
| 68 | you can use an abbreviated form, which consists | ||
| 69 | of just the first portion or portions of the license string before | ||
| 70 | the initial underscore character or characters. | ||
| 71 | A partial string will match | ||
| 72 | any license that contains the given string as the first | ||
| 73 | portion of its license. | ||
| 74 | For example, the following | ||
| 75 | whitelist string will also match both of the packages | ||
| 76 | previously mentioned as well as any other packages that have | ||
| 77 | licenses starting with "commercial" or "license". | ||
| 78 | </p> | ||
| 79 | <pre class="literallayout"> | ||
| 80 | LICENSE_FLAGS_WHITELIST = "commercial license" | ||
| 81 | </pre> | ||
| 82 | <p> | ||
| 83 | </p> | ||
| 84 | </div></body> | ||
| 85 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/examining-build-history-information.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/examining-build-history-information.html new file mode 100644 index 0000000000..0fa3f74545 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/examining-build-history-information.html | |||
| @@ -0,0 +1,70 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.4.2.4. Examining Build History Information</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="understanding-what-the-build-history-contains.html" title="2.4.2. Understanding What the Build History Contains"> | ||
| 9 | <link rel="prev" href="using-build-history-to-gather-image-information-only.html" title="2.4.2.3. Using Build History to Gather Image Information Only"> | ||
| 10 | <link rel="next" href="technical-details.html" title="Chapter 3. Technical Details"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.4.2.4. Examining Build History Information"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="examining-build-history-information"></a>2.4.2.4. Examining Build History Information</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | You can examine build history output from the command line or | ||
| 17 | from a web interface. | ||
| 18 | </p> | ||
| 19 | <p> | ||
| 20 | To see any changes that have occurred (assuming you have | ||
| 21 | <code class="filename">BUILDHISTORY_COMMIT = "1"</code>), you can simply | ||
| 22 | use any Git command that allows you to view the history of | ||
| 23 | a repository. | ||
| 24 | Here is one method: | ||
| 25 | </p> | ||
| 26 | <pre class="literallayout"> | ||
| 27 | $ git log -p | ||
| 28 | </pre> | ||
| 29 | <p> | ||
| 30 | You need to realize, however, that this method does show | ||
| 31 | changes that are not significant (e.g. a package's size | ||
| 32 | changing by a few bytes). | ||
| 33 | </p> | ||
| 34 | <p> | ||
| 35 | A command-line tool called <code class="filename">buildhistory-diff</code> | ||
| 36 | does exist though that queries the Git repository and prints just | ||
| 37 | the differences that might be significant in human-readable form. | ||
| 38 | Here is an example: | ||
| 39 | </p> | ||
| 40 | <pre class="literallayout"> | ||
| 41 | $ ~/poky/poky/scripts/buildhistory-diff . HEAD^ | ||
| 42 | Changes to images/qemux86_64/eglibc/core-image-minimal (files-in-image.txt): | ||
| 43 | /etc/anotherpkg.conf was added | ||
| 44 | /sbin/anotherpkg was added | ||
| 45 | * (installed-package-names.txt): | ||
| 46 | * anotherpkg was added | ||
| 47 | Changes to images/qemux86_64/eglibc/core-image-minimal (installed-package-names.txt): | ||
| 48 | anotherpkg was added | ||
| 49 | packages/qemux86_64-poky-linux/v86d: PACKAGES: added "v86d-extras" | ||
| 50 | * PR changed from "r0" to "r1" | ||
| 51 | * PV changed from "0.1.10" to "0.1.12" | ||
| 52 | packages/qemux86_64-poky-linux/v86d/v86d: PKGSIZE changed from 110579 to 144381 (+30%) | ||
| 53 | * PR changed from "r0" to "r1" | ||
| 54 | * PV changed from "0.1.10" to "0.1.12" | ||
| 55 | </pre> | ||
| 56 | <p> | ||
| 57 | </p> | ||
| 58 | <p> | ||
| 59 | To see changes to the build history using a web interface, follow | ||
| 60 | the instruction in the <code class="filename">README</code> file here. | ||
| 61 | <a class="ulink" href="http://git.yoctoproject.org/cgit/cgit.cgi/buildhistory-web/" target="_self">http://git.yoctoproject.org/cgit/cgit.cgi/buildhistory-web/</a>. | ||
| 62 | </p> | ||
| 63 | <p> | ||
| 64 | Here is a sample screenshot of the interface: | ||
| 65 | </p> | ||
| 66 | <table border="0" summary="manufactured viewport for HTML img" cellspacing="0" cellpadding="0" width="130%"><tr><td align="center"><img src="figures/buildhistory-web.png" align="middle" height="468"></td></tr></table> | ||
| 67 | <p> | ||
| 68 | </p> | ||
| 69 | </div></body> | ||
| 70 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/faq.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/faq.html new file mode 100644 index 0000000000..8b8cafbc3a --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/faq.html | |||
| @@ -0,0 +1,791 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 12. FAQ</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="ref-varlocality-recipe-build.html" title="11.2.4. Extra Build Information"> | ||
| 10 | <link rel="next" href="resources.html" title="Chapter 13. Contributing to the Yocto Project"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 12. FAQ"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="faq"></a>Chapter 12. FAQ</h2></div></div></div> | ||
| 15 | <div class="qandaset" title="Frequently Asked Questions"> | ||
| 16 | <a name="idm1966160"></a><dl> | ||
| 17 | <dt>12.1. <a href="faq.html#idm1965696"> | ||
| 18 | How does Poky differ from OpenEmbedded? | ||
| 19 | </a> | ||
| 20 | </dt> | ||
| 21 | <dt>12.2. <a href="faq.html#idm1961792"> | ||
| 22 | I only have Python 2.4 or 2.5 but BitBake requires Python 2.6 or 2.7. | ||
| 23 | Can I still use the Yocto Project? | ||
| 24 | </a> | ||
| 25 | </dt> | ||
| 26 | <dt>12.3. <a href="faq.html#idm2605168"> | ||
| 27 | How can you claim Poky / OpenEmbedded-Core is stable? | ||
| 28 | </a> | ||
| 29 | </dt> | ||
| 30 | <dt>12.4. <a href="faq.html#idm3232752"> | ||
| 31 | How do I get support for my board added to the Yocto Project? | ||
| 32 | </a> | ||
| 33 | </dt> | ||
| 34 | <dt>12.5. <a href="faq.html#idm3230416"> | ||
| 35 | Are there any products built using the OpenEmbedded build system? | ||
| 36 | </a> | ||
| 37 | </dt> | ||
| 38 | <dt>12.6. <a href="faq.html#idm3227696"> | ||
| 39 | What does the OpenEmbedded build system produce as output? | ||
| 40 | </a> | ||
| 41 | </dt> | ||
| 42 | <dt>12.7. <a href="faq.html#idm5359408"> | ||
| 43 | How do I add my package to the Yocto Project? | ||
| 44 | </a> | ||
| 45 | </dt> | ||
| 46 | <dt>12.8. <a href="faq.html#idm5357680"> | ||
| 47 | Do I have to reflash my entire board with a new Yocto Project image when recompiling | ||
| 48 | a package? | ||
| 49 | </a> | ||
| 50 | </dt> | ||
| 51 | <dt>12.9. <a href="faq.html#idm5354224"> | ||
| 52 | What is GNOME Mobile and what is the difference between GNOME Mobile and GNOME? | ||
| 53 | </a> | ||
| 54 | </dt> | ||
| 55 | <dt>12.10. <a href="faq.html#idm2088960"> | ||
| 56 | I see the error 'chmod: XXXXX new permissions are r-xrwxrwx, not r-xr-xr-x'. | ||
| 57 | What is wrong? | ||
| 58 | </a> | ||
| 59 | </dt> | ||
| 60 | <dt>12.11. <a href="faq.html#idm2085168"> | ||
| 61 | How do I make the Yocto Project work in RHEL/CentOS? | ||
| 62 | </a> | ||
| 63 | </dt> | ||
| 64 | <dt>12.12. <a href="faq.html#idm3829808"> | ||
| 65 | I see lots of 404 responses for files on | ||
| 66 | http://www.yoctoproject.org/sources/*. Is something wrong? | ||
| 67 | </a> | ||
| 68 | </dt> | ||
| 69 | <dt>12.13. <a href="faq.html#idm3827408"> | ||
| 70 | I have machine-specific data in a package for one machine only but the package is | ||
| 71 | being marked as machine-specific in all cases, how do I prevent this? | ||
| 72 | </a> | ||
| 73 | </dt> | ||
| 74 | <dt>12.14. <a href="faq.html#idm5331776"> | ||
| 75 | I'm behind a firewall and need to use a proxy server. How do I do that? | ||
| 76 | </a> | ||
| 77 | </dt> | ||
| 78 | <dt>12.15. <a href="faq.html#idm1524432"> | ||
| 79 | What’s the difference between foo and foo-native? | ||
| 80 | </a> | ||
| 81 | </dt> | ||
| 82 | <dt>12.16. <a href="faq.html#idm1520336"> | ||
| 83 | I'm seeing random build failures. Help?! | ||
| 84 | </a> | ||
| 85 | </dt> | ||
| 86 | <dt>12.17. <a href="faq.html#idm4636672"> | ||
| 87 | What do we need to ship for license compliance? | ||
| 88 | </a> | ||
| 89 | </dt> | ||
| 90 | <dt>12.18. <a href="faq.html#idm4635216"> | ||
| 91 | How do I disable the cursor on my touchscreen device? | ||
| 92 | </a> | ||
| 93 | </dt> | ||
| 94 | <dt>12.19. <a href="faq.html#idm4631744"> | ||
| 95 | How do I make sure connected network interfaces are brought up by default? | ||
| 96 | </a> | ||
| 97 | </dt> | ||
| 98 | <dt>12.20. <a href="faq.html#idm3888832"> | ||
| 99 | How do I create images with more free space? | ||
| 100 | </a> | ||
| 101 | </dt> | ||
| 102 | <dt>12.21. <a href="faq.html#idm619504"> | ||
| 103 | Why don't you support directories with spaces in the pathnames? | ||
| 104 | </a> | ||
| 105 | </dt> | ||
| 106 | <dt>12.22. <a href="faq.html#idm617456"> | ||
| 107 | How do I use an external toolchain? | ||
| 108 | </a> | ||
| 109 | </dt> | ||
| 110 | <dt>12.23. <a href="faq.html#idm4577168"> | ||
| 111 | How does the OpenEmbedded build system obtain source code and will it work behind my | ||
| 112 | firewall or proxy server? | ||
| 113 | </a> | ||
| 114 | </dt> | ||
| 115 | <dt>12.24. <a href="faq.html#idm3953616"> | ||
| 116 | Can I get rid of build output so I can start over? | ||
| 117 | </a> | ||
| 118 | </dt> | ||
| 119 | </dl> | ||
| 120 | <table border="0" width="100%" summary="Q and A Set"> | ||
| 121 | <col align="left" width="1%"> | ||
| 122 | <col> | ||
| 123 | <tbody> | ||
| 124 | <tr class="question" title="12.1."> | ||
| 125 | <td align="left" valign="top"> | ||
| 126 | <a name="idm1965696"></a><a name="idm1965568"></a><p><b>12.1.</b></p> | ||
| 127 | </td> | ||
| 128 | <td align="left" valign="top"><p> | ||
| 129 | How does Poky differ from <a class="ulink" href="http://www.openembedded.org" target="_self">OpenEmbedded</a>? | ||
| 130 | </p></td> | ||
| 131 | </tr> | ||
| 132 | <tr class="answer"> | ||
| 133 | <td align="left" valign="top"></td> | ||
| 134 | <td align="left" valign="top"><p> | ||
| 135 | The term "Poky" refers to the specific reference build system that | ||
| 136 | the Yocto Project provides. | ||
| 137 | Poky is based on <a class="link" href="../dev-manual/oe-core.html" target="_self">OE-Core</a> | ||
| 138 | and BitBake. | ||
| 139 | Thus, the generic term used here for the build system is | ||
| 140 | the "OpenEmbedded build system." | ||
| 141 | Development in the Yocto Project using Poky is closely tied to OpenEmbedded, with | ||
| 142 | changes always being merged to OE-Core or BitBake first before being pulled back | ||
| 143 | into Poky. | ||
| 144 | This practice benefits both projects immediately. | ||
| 145 | For a fuller description of the term "Poky", see the | ||
| 146 | <a class="link" href="../dev-manual/poky.html" target="_self">poky</a> term in the Yocto Project | ||
| 147 | Development Manual. | ||
| 148 | </p></td> | ||
| 149 | </tr> | ||
| 150 | <tr class="question" title="12.2."> | ||
| 151 | <td align="left" valign="top"> | ||
| 152 | <a name="idm1961792"></a><a name="idm1961664"></a><p><b>12.2.</b></p> | ||
| 153 | </td> | ||
| 154 | <td align="left" valign="top"><p> | ||
| 155 | I only have Python 2.4 or 2.5 but BitBake requires Python 2.6 or 2.7. | ||
| 156 | Can I still use the Yocto Project? | ||
| 157 | </p></td> | ||
| 158 | </tr> | ||
| 159 | <tr class="answer"> | ||
| 160 | <td align="left" valign="top"></td> | ||
| 161 | <td align="left" valign="top"> | ||
| 162 | <p> | ||
| 163 | You can use a stand-alone tarball to provide Python 2.6. | ||
| 164 | You can find pre-built 32 and 64-bit versions of Python 2.6 at the following locations: | ||
| 165 | </p> | ||
| 166 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 167 | <li class="listitem"><p><a class="ulink" href="http://downloads.yoctoproject.org/releases/miscsupport/python-nativesdk-standalone-i686.tar.bz2" target="_self">32-bit tarball</a></p></li> | ||
| 168 | <li class="listitem"><p><a class="ulink" href="http://downloads.yoctoproject.org/releases/miscsupport/python-nativesdk-standalone-x86_64.tar.bz2" target="_self">64-bit tarball</a></p></li> | ||
| 169 | </ul></div> | ||
| 170 | <p> | ||
| 171 | </p> | ||
| 172 | <p> | ||
| 173 | These tarballs are self-contained with all required libraries and should work | ||
| 174 | on most Linux systems. | ||
| 175 | To use the tarballs extract them into the root | ||
| 176 | directory and run the appropriate command: | ||
| 177 | </p> | ||
| 178 | <pre class="literallayout"> | ||
| 179 | $ export PATH=/opt/poky/sysroots/i586-pokysdk-linux/usr/bin/:$PATH | ||
| 180 | $ export PATH=/opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/:$PATH | ||
| 181 | </pre> | ||
| 182 | <p> | ||
| 183 | </p> | ||
| 184 | <p> | ||
| 185 | Once you run the command, BitBake uses Python 2.6. | ||
| 186 | </p> | ||
| 187 | </td> | ||
| 188 | </tr> | ||
| 189 | <tr class="question" title="12.3."> | ||
| 190 | <td align="left" valign="top"> | ||
| 191 | <a name="idm2605168"></a><a name="idm2605040"></a><p><b>12.3.</b></p> | ||
| 192 | </td> | ||
| 193 | <td align="left" valign="top"><p> | ||
| 194 | How can you claim Poky / OpenEmbedded-Core is stable? | ||
| 195 | </p></td> | ||
| 196 | </tr> | ||
| 197 | <tr class="answer"> | ||
| 198 | <td align="left" valign="top"></td> | ||
| 199 | <td align="left" valign="top"> | ||
| 200 | <p> | ||
| 201 | There are three areas that help with stability; | ||
| 202 | </p> | ||
| 203 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 204 | <li class="listitem"><p>The Yocto Project team keeps | ||
| 205 | <a class="link" href="../dev-manual/oe-core.html" target="_self">OE-Core</a> small | ||
| 206 | and focused, containing around 830 recipes as opposed to the thousands | ||
| 207 | available in other OpenEmbedded community layers. | ||
| 208 | Keeping it small makes it easy to test and maintain.</p></li> | ||
| 209 | <li class="listitem"><p>The Yocto Project team runs manual and automated tests | ||
| 210 | using a small, fixed set of reference hardware as well as emulated | ||
| 211 | targets.</p></li> | ||
| 212 | <li class="listitem"><p>The Yocto Project uses an an autobuilder, | ||
| 213 | which provides continuous build and integration tests.</p></li> | ||
| 214 | </ul></div> | ||
| 215 | <p> | ||
| 216 | </p> | ||
| 217 | </td> | ||
| 218 | </tr> | ||
| 219 | <tr class="question" title="12.4."> | ||
| 220 | <td align="left" valign="top"> | ||
| 221 | <a name="idm3232752"></a><a name="idm3232624"></a><p><b>12.4.</b></p> | ||
| 222 | </td> | ||
| 223 | <td align="left" valign="top"><p> | ||
| 224 | How do I get support for my board added to the Yocto Project? | ||
| 225 | </p></td> | ||
| 226 | </tr> | ||
| 227 | <tr class="answer"> | ||
| 228 | <td align="left" valign="top"></td> | ||
| 229 | <td align="left" valign="top"> | ||
| 230 | <p> | ||
| 231 | Support for an additional board is added by creating a BSP layer for it. | ||
| 232 | For more information on how to create a BSP layer, see the | ||
| 233 | <a class="link" href="../bsp-guide/index.html" target="_self">Yocto Project Board Support Package (BSP) Developer's Guide</a>. | ||
| 234 | </p> | ||
| 235 | <p> | ||
| 236 | Usually, if the board is not completely exotic, adding support in | ||
| 237 | the Yocto Project is fairly straightforward. | ||
| 238 | </p> | ||
| 239 | </td> | ||
| 240 | </tr> | ||
| 241 | <tr class="question" title="12.5."> | ||
| 242 | <td align="left" valign="top"> | ||
| 243 | <a name="idm3230416"></a><a name="idm3230288"></a><p><b>12.5.</b></p> | ||
| 244 | </td> | ||
| 245 | <td align="left" valign="top"><p> | ||
| 246 | Are there any products built using the OpenEmbedded build system? | ||
| 247 | </p></td> | ||
| 248 | </tr> | ||
| 249 | <tr class="answer"> | ||
| 250 | <td align="left" valign="top"></td> | ||
| 251 | <td align="left" valign="top"><p> | ||
| 252 | The software running on the <a class="ulink" href="http://vernier.com/labquest/" target="_self">Vernier LabQuest</a> | ||
| 253 | is built using the OpenEmbedded build system. | ||
| 254 | See the <a class="ulink" href="http://www.vernier.com/products/interfaces/labq/" target="_self">Vernier LabQuest</a> | ||
| 255 | website for more information. | ||
| 256 | There are a number of pre-production devices using the OpenEmbedded build system | ||
| 257 | and the Yocto Project team | ||
| 258 | announces them as soon as they are released. | ||
| 259 | </p></td> | ||
| 260 | </tr> | ||
| 261 | <tr class="question" title="12.6."> | ||
| 262 | <td align="left" valign="top"> | ||
| 263 | <a name="idm3227696"></a><a name="idm3227568"></a><p><b>12.6.</b></p> | ||
| 264 | </td> | ||
| 265 | <td align="left" valign="top"><p> | ||
| 266 | What does the OpenEmbedded build system produce as output? | ||
| 267 | </p></td> | ||
| 268 | </tr> | ||
| 269 | <tr class="answer"> | ||
| 270 | <td align="left" valign="top"></td> | ||
| 271 | <td align="left" valign="top"><p> | ||
| 272 | Because the same set of recipes can be used to create output of various formats, the | ||
| 273 | output of an OpenEmbedded build depends on how it was started. | ||
| 274 | Usually, the output is a flashable image ready for the target device. | ||
| 275 | </p></td> | ||
| 276 | </tr> | ||
| 277 | <tr class="question" title="12.7."> | ||
| 278 | <td align="left" valign="top"> | ||
| 279 | <a name="idm5359408"></a><a name="idm5359280"></a><p><b>12.7.</b></p> | ||
| 280 | </td> | ||
| 281 | <td align="left" valign="top"><p> | ||
| 282 | How do I add my package to the Yocto Project? | ||
| 283 | </p></td> | ||
| 284 | </tr> | ||
| 285 | <tr class="answer"> | ||
| 286 | <td align="left" valign="top"></td> | ||
| 287 | <td align="left" valign="top"><p> | ||
| 288 | To add a package, you need to create a BitBake recipe. | ||
| 289 | For information on how to add a package, see the section | ||
| 290 | "<a class="link" href="../dev-manual/usingpoky-extend-addpkg.html" target="_self">Adding a Package</a>" | ||
| 291 | in the Yocto Project Development Manual. | ||
| 292 | </p></td> | ||
| 293 | </tr> | ||
| 294 | <tr class="question" title="12.8."> | ||
| 295 | <td align="left" valign="top"> | ||
| 296 | <a name="idm5357680"></a><a name="idm5357552"></a><p><b>12.8.</b></p> | ||
| 297 | </td> | ||
| 298 | <td align="left" valign="top"><p> | ||
| 299 | Do I have to reflash my entire board with a new Yocto Project image when recompiling | ||
| 300 | a package? | ||
| 301 | </p></td> | ||
| 302 | </tr> | ||
| 303 | <tr class="answer"> | ||
| 304 | <td align="left" valign="top"></td> | ||
| 305 | <td align="left" valign="top"><p> | ||
| 306 | The OpenEmbedded build system can build packages in various formats such as | ||
| 307 | <code class="filename">ipk</code> for <code class="filename">opkg</code>, | ||
| 308 | Debian package (<code class="filename">.deb</code>), or RPM. | ||
| 309 | The packages can then be upgraded using the package tools on the device, much like | ||
| 310 | on a desktop distribution such as Ubuntu or Fedora. | ||
| 311 | </p></td> | ||
| 312 | </tr> | ||
| 313 | <tr class="question" title="12.9."> | ||
| 314 | <td align="left" valign="top"> | ||
| 315 | <a name="idm5354224"></a><a name="idm5354096"></a><p><b>12.9.</b></p> | ||
| 316 | </td> | ||
| 317 | <td align="left" valign="top"><p> | ||
| 318 | What is GNOME Mobile and what is the difference between GNOME Mobile and GNOME? | ||
| 319 | </p></td> | ||
| 320 | </tr> | ||
| 321 | <tr class="answer"> | ||
| 322 | <td align="left" valign="top"></td> | ||
| 323 | <td align="left" valign="top"><p> | ||
| 324 | GNOME Mobile is a subset of the <a class="ulink" href="http://www.gnome.org" target="_self">GNOME</a> | ||
| 325 | platform targeted at mobile and embedded devices. | ||
| 326 | The the main difference between GNOME Mobile and standard GNOME is that | ||
| 327 | desktop-orientated libraries have been removed, along with deprecated libraries, | ||
| 328 | creating a much smaller footprint. | ||
| 329 | </p></td> | ||
| 330 | </tr> | ||
| 331 | <tr class="question" title="12.10."> | ||
| 332 | <td align="left" valign="top"> | ||
| 333 | <a name="idm2088960"></a><a name="idm2088832"></a><p><b>12.10.</b></p> | ||
| 334 | </td> | ||
| 335 | <td align="left" valign="top"><p> | ||
| 336 | I see the error '<code class="filename">chmod: XXXXX new permissions are r-xrwxrwx, not r-xr-xr-x</code>'. | ||
| 337 | What is wrong? | ||
| 338 | </p></td> | ||
| 339 | </tr> | ||
| 340 | <tr class="answer"> | ||
| 341 | <td align="left" valign="top"></td> | ||
| 342 | <td align="left" valign="top"><p> | ||
| 343 | You are probably running the build on an NTFS filesystem. | ||
| 344 | Use <code class="filename">ext2</code>, <code class="filename">ext3</code>, or <code class="filename">ext4</code> instead. | ||
| 345 | </p></td> | ||
| 346 | </tr> | ||
| 347 | <tr class="question" title="12.11."> | ||
| 348 | <td align="left" valign="top"> | ||
| 349 | <a name="idm2085168"></a><a name="idm2085040"></a><p><b>12.11.</b></p> | ||
| 350 | </td> | ||
| 351 | <td align="left" valign="top"><p> | ||
| 352 | How do I make the Yocto Project work in RHEL/CentOS? | ||
| 353 | </p></td> | ||
| 354 | </tr> | ||
| 355 | <tr class="answer"> | ||
| 356 | <td align="left" valign="top"></td> | ||
| 357 | <td align="left" valign="top"> | ||
| 358 | <p> | ||
| 359 | To get the Yocto Project working under RHEL/CentOS 5.1 you need to first | ||
| 360 | install some required packages. | ||
| 361 | The standard CentOS packages needed are: | ||
| 362 | </p> | ||
| 363 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 364 | <li class="listitem"><p>"Development tools" (selected during installation)</p></li> | ||
| 365 | <li class="listitem"><p><code class="filename">texi2html</code></p></li> | ||
| 366 | <li class="listitem"><p><code class="filename">compat-gcc-34</code></p></li> | ||
| 367 | </ul></div> | ||
| 368 | <p> | ||
| 369 | On top of these, you need the following external packages: | ||
| 370 | </p> | ||
| 371 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 372 | <li class="listitem"><p><code class="filename">python-sqlite2</code> from | ||
| 373 | <a class="ulink" href="http://dag.wieers.com/rpm/packages/python-sqlite2/" target="_self">DAG repository</a> | ||
| 374 | </p></li> | ||
| 375 | <li class="listitem"><p><code class="filename">help2man</code> from | ||
| 376 | <a class="ulink" href="http://centos.karan.org/el4/extras/stable/x86_64/RPMS/repodata/repoview/help2man-0-1.33.1-2.html" target="_self">Karan repository</a></p></li> | ||
| 377 | </ul></div> | ||
| 378 | <p> | ||
| 379 | </p> | ||
| 380 | <p> | ||
| 381 | Once these packages are installed, the OpenEmbedded build system will be able | ||
| 382 | to build standard images. | ||
| 383 | However, there might be a problem with the QEMU emulator segfaulting. | ||
| 384 | You can either disable the generation of binary locales by setting | ||
| 385 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-ENABLE_BINARY_LOCALE_GENERATION" title="ENABLE_BINARY_LOCALE_GENERATION">ENABLE_BINARY_LOCALE_GENERATION</a> | ||
| 386 | </code> to "0" or by removing the <code class="filename">linux-2.6-execshield.patch</code> | ||
| 387 | from the kernel and rebuilding it since that is the patch that causes the problems with QEMU. | ||
| 388 | </p> | ||
| 389 | </td> | ||
| 390 | </tr> | ||
| 391 | <tr class="question" title="12.12."> | ||
| 392 | <td align="left" valign="top"> | ||
| 393 | <a name="idm3829808"></a><a name="idm3829680"></a><p><b>12.12.</b></p> | ||
| 394 | </td> | ||
| 395 | <td align="left" valign="top"><p> | ||
| 396 | I see lots of 404 responses for files on | ||
| 397 | <code class="filename">http://www.yoctoproject.org/sources/*</code>. Is something wrong? | ||
| 398 | </p></td> | ||
| 399 | </tr> | ||
| 400 | <tr class="answer"> | ||
| 401 | <td align="left" valign="top"></td> | ||
| 402 | <td align="left" valign="top"><p> | ||
| 403 | Nothing is wrong. | ||
| 404 | The OpenEmbedded build system checks any configured source mirrors before downloading | ||
| 405 | from the upstream sources. | ||
| 406 | The build system does this searching for both source archives and | ||
| 407 | pre-checked out versions of SCM managed software. | ||
| 408 | These checks help in large installations because it can reduce load on the SCM servers | ||
| 409 | themselves. | ||
| 410 | The address above is one of the default mirrors configured into the | ||
| 411 | build system. | ||
| 412 | Consequently, if an upstream source disappears, the team | ||
| 413 | can place sources there so builds continue to work. | ||
| 414 | </p></td> | ||
| 415 | </tr> | ||
| 416 | <tr class="question" title="12.13."> | ||
| 417 | <td align="left" valign="top"> | ||
| 418 | <a name="idm3827408"></a><a name="idm3827280"></a><p><b>12.13.</b></p> | ||
| 419 | </td> | ||
| 420 | <td align="left" valign="top"><p> | ||
| 421 | I have machine-specific data in a package for one machine only but the package is | ||
| 422 | being marked as machine-specific in all cases, how do I prevent this? | ||
| 423 | </p></td> | ||
| 424 | </tr> | ||
| 425 | <tr class="answer"> | ||
| 426 | <td align="left" valign="top"></td> | ||
| 427 | <td align="left" valign="top"><p> | ||
| 428 | Set <code class="filename"><a class="link" href="ref-variables-glos.html#var-SRC_URI_OVERRIDES_PACKAGE_ARCH" title="SRC_URI_OVERRIDES_PACKAGE_ARCH">SRC_URI_OVERRIDES_PACKAGE_ARCH</a> | ||
| 429 | </code> = "0" in the <code class="filename">.bb</code> file but make sure the package is | ||
| 430 | manually marked as | ||
| 431 | machine-specific in the case that needs it. | ||
| 432 | The code that handles <code class="filename">SRC_URI_OVERRIDES_PACKAGE_ARCH</code> is in <code class="filename">base.bbclass</code>. | ||
| 433 | </p></td> | ||
| 434 | </tr> | ||
| 435 | <tr class="question" title="12.14."> | ||
| 436 | <td align="left" valign="top"> | ||
| 437 | <a name="idm5331776"></a><a name="idm5331648"></a><p><b>12.14.</b></p> | ||
| 438 | </td> | ||
| 439 | <td align="left" valign="top"><p> | ||
| 440 | I'm behind a firewall and need to use a proxy server. How do I do that? | ||
| 441 | </p></td> | ||
| 442 | </tr> | ||
| 443 | <tr class="answer"> | ||
| 444 | <td align="left" valign="top"></td> | ||
| 445 | <td align="left" valign="top"> | ||
| 446 | <p> | ||
| 447 | Most source fetching by the OpenEmbedded build system is done by <code class="filename">wget</code> | ||
| 448 | and you therefore need to specify the proxy settings in a | ||
| 449 | <code class="filename">.wgetrc</code> file in your home directory. | ||
| 450 | Example settings in that file would be | ||
| 451 | </p> | ||
| 452 | <pre class="literallayout"> | ||
| 453 | http_proxy = http://proxy.yoyodyne.com:18023/ | ||
| 454 | ftp_proxy = http://proxy.yoyodyne.com:18023/ | ||
| 455 | </pre> | ||
| 456 | <p> | ||
| 457 | The Yocto Project also includes a <code class="filename">site.conf.sample</code> | ||
| 458 | file that shows how to configure CVS and Git proxy servers | ||
| 459 | if needed. | ||
| 460 | </p> | ||
| 461 | </td> | ||
| 462 | </tr> | ||
| 463 | <tr class="question" title="12.15."> | ||
| 464 | <td align="left" valign="top"> | ||
| 465 | <a name="idm1524432"></a><a name="idm1524304"></a><p><b>12.15.</b></p> | ||
| 466 | </td> | ||
| 467 | <td align="left" valign="top"><p> | ||
| 468 | What’s the difference between <code class="filename">foo</code> and <code class="filename">foo-native</code>? | ||
| 469 | </p></td> | ||
| 470 | </tr> | ||
| 471 | <tr class="answer"> | ||
| 472 | <td align="left" valign="top"></td> | ||
| 473 | <td align="left" valign="top"><p> | ||
| 474 | The <code class="filename">*-native</code> targets are designed to run on the system | ||
| 475 | being used for the build. | ||
| 476 | These are usually tools that are needed to assist the build in some way such as | ||
| 477 | <code class="filename">quilt-native</code>, which is used to apply patches. | ||
| 478 | The non-native version is the one that runs on the target device. | ||
| 479 | </p></td> | ||
| 480 | </tr> | ||
| 481 | <tr class="question" title="12.16."> | ||
| 482 | <td align="left" valign="top"> | ||
| 483 | <a name="idm1520336"></a><a name="idm1520208"></a><p><b>12.16.</b></p> | ||
| 484 | </td> | ||
| 485 | <td align="left" valign="top"><p> | ||
| 486 | I'm seeing random build failures. Help?! | ||
| 487 | </p></td> | ||
| 488 | </tr> | ||
| 489 | <tr class="answer"> | ||
| 490 | <td align="left" valign="top"></td> | ||
| 491 | <td align="left" valign="top"><p> | ||
| 492 | If the same build is failing in totally different and random ways, | ||
| 493 | the most likely explanation is that either the hardware you're running the | ||
| 494 | build on has some problem, or, if you are running the build under virtualisation, | ||
| 495 | the virtualisation probably has bugs. | ||
| 496 | The OpenEmbedded build system processes a massive amount of data causing lots of network, disk and | ||
| 497 | CPU activity and is sensitive to even single bit failures in any of these areas. | ||
| 498 | True random failures have always been traced back to hardware or virtualisation issues. | ||
| 499 | </p></td> | ||
| 500 | </tr> | ||
| 501 | <tr class="question" title="12.17."> | ||
| 502 | <td align="left" valign="top"> | ||
| 503 | <a name="idm4636672"></a><a name="idm4636544"></a><p><b>12.17.</b></p> | ||
| 504 | </td> | ||
| 505 | <td align="left" valign="top"><p> | ||
| 506 | What do we need to ship for license compliance? | ||
| 507 | </p></td> | ||
| 508 | </tr> | ||
| 509 | <tr class="answer"> | ||
| 510 | <td align="left" valign="top"></td> | ||
| 511 | <td align="left" valign="top"><p> | ||
| 512 | This is a difficult question and you need to consult your lawyer for the answer | ||
| 513 | for your specific case. | ||
| 514 | It is worth bearing in mind that for GPL compliance there needs to be enough | ||
| 515 | information shipped to allow someone else to rebuild the same end result | ||
| 516 | you are shipping. | ||
| 517 | This means sharing the source code, any patches applied to it, and also any | ||
| 518 | configuration information about how that package was configured and built. | ||
| 519 | </p></td> | ||
| 520 | </tr> | ||
| 521 | <tr class="question" title="12.18."> | ||
| 522 | <td align="left" valign="top"> | ||
| 523 | <a name="idm4635216"></a><a name="idm4635088"></a><p><b>12.18.</b></p> | ||
| 524 | </td> | ||
| 525 | <td align="left" valign="top"><p> | ||
| 526 | How do I disable the cursor on my touchscreen device? | ||
| 527 | </p></td> | ||
| 528 | </tr> | ||
| 529 | <tr class="answer"> | ||
| 530 | <td align="left" valign="top"></td> | ||
| 531 | <td align="left" valign="top"> | ||
| 532 | <p> | ||
| 533 | You need to create a form factor file as described in the | ||
| 534 | "<a class="link" href="../bsp-guide/bsp-filelayout-misc-recipes.html" target="_self">Miscellaneous Recipe Files</a>" | ||
| 535 | section and set the <code class="filename">HAVE_TOUCHSCREEN</code> variable equal to one as follows: | ||
| 536 | </p> | ||
| 537 | <pre class="literallayout"> | ||
| 538 | HAVE_TOUCHSCREEN=1 | ||
| 539 | </pre> | ||
| 540 | <p> | ||
| 541 | </p> | ||
| 542 | </td> | ||
| 543 | </tr> | ||
| 544 | <tr class="question" title="12.19."> | ||
| 545 | <td align="left" valign="top"> | ||
| 546 | <a name="idm4631744"></a><a name="idm4631616"></a><p><b>12.19.</b></p> | ||
| 547 | </td> | ||
| 548 | <td align="left" valign="top"><p> | ||
| 549 | How do I make sure connected network interfaces are brought up by default? | ||
| 550 | </p></td> | ||
| 551 | </tr> | ||
| 552 | <tr class="answer"> | ||
| 553 | <td align="left" valign="top"></td> | ||
| 554 | <td align="left" valign="top"> | ||
| 555 | <p> | ||
| 556 | The default interfaces file provided by the netbase recipe does not | ||
| 557 | automatically bring up network interfaces. | ||
| 558 | Therefore, you will need to add a BSP-specific netbase that includes an interfaces | ||
| 559 | file. | ||
| 560 | See the "<a class="link" href="../bsp-guide/bsp-filelayout-misc-recipes.html" target="_self">Miscellaneous Recipe Files</a>" | ||
| 561 | section for information on creating these types of miscellaneous recipe files. | ||
| 562 | </p> | ||
| 563 | <p> | ||
| 564 | For example, add the following files to your layer: | ||
| 565 | </p> | ||
| 566 | <pre class="literallayout"> | ||
| 567 | meta-MACHINE/recipes-bsp/netbase/netbase/MACHINE/interfaces | ||
| 568 | meta-MACHINE/recipes-bsp/netbase/netbase_5.0.bbappend | ||
| 569 | </pre> | ||
| 570 | <p> | ||
| 571 | </p> | ||
| 572 | </td> | ||
| 573 | </tr> | ||
| 574 | <tr class="question" title="12.20."> | ||
| 575 | <td align="left" valign="top"> | ||
| 576 | <a name="idm3888832"></a><a name="idm3888704"></a><p><b>12.20.</b></p> | ||
| 577 | </td> | ||
| 578 | <td align="left" valign="top"><p> | ||
| 579 | How do I create images with more free space? | ||
| 580 | </p></td> | ||
| 581 | </tr> | ||
| 582 | <tr class="answer"> | ||
| 583 | <td align="left" valign="top"></td> | ||
| 584 | <td align="left" valign="top"> | ||
| 585 | <p> | ||
| 586 | Images are created to be 1.2 times the size of the populated root filesystem. | ||
| 587 | To modify this ratio so that there is more free space available, you need to | ||
| 588 | set the configuration value <code class="filename">IMAGE_OVERHEAD_FACTOR</code>. | ||
| 589 | For example, setting <code class="filename">IMAGE_OVERHEAD_FACTOR</code> to 1.5 sets | ||
| 590 | the image size ratio to one and a half times the size of the populated | ||
| 591 | root filesystem. | ||
| 592 | </p> | ||
| 593 | <pre class="literallayout"> | ||
| 594 | IMAGE_OVERHEAD_FACTOR = "1.5" | ||
| 595 | </pre> | ||
| 596 | <p> | ||
| 597 | </p> | ||
| 598 | </td> | ||
| 599 | </tr> | ||
| 600 | <tr class="question" title="12.21."> | ||
| 601 | <td align="left" valign="top"> | ||
| 602 | <a name="idm619504"></a><a name="idm619376"></a><p><b>12.21.</b></p> | ||
| 603 | </td> | ||
| 604 | <td align="left" valign="top"><p> | ||
| 605 | Why don't you support directories with spaces in the pathnames? | ||
| 606 | </p></td> | ||
| 607 | </tr> | ||
| 608 | <tr class="answer"> | ||
| 609 | <td align="left" valign="top"></td> | ||
| 610 | <td align="left" valign="top"><p> | ||
| 611 | The Yocto Project team has tried to do this before but too many of the tools | ||
| 612 | the OpenEmbedded build system depends on such as <code class="filename">autoconf</code> | ||
| 613 | break when they find spaces in pathnames. | ||
| 614 | Until that situation changes, the team will not support spaces in pathnames. | ||
| 615 | </p></td> | ||
| 616 | </tr> | ||
| 617 | <tr class="question" title="12.22."> | ||
| 618 | <td align="left" valign="top"> | ||
| 619 | <a name="idm617456"></a><a name="idm617328"></a><p><b>12.22.</b></p> | ||
| 620 | </td> | ||
| 621 | <td align="left" valign="top"><p> | ||
| 622 | How do I use an external toolchain? | ||
| 623 | </p></td> | ||
| 624 | </tr> | ||
| 625 | <tr class="answer"> | ||
| 626 | <td align="left" valign="top"></td> | ||
| 627 | <td align="left" valign="top"> | ||
| 628 | <p> | ||
| 629 | The toolchain configuration is very flexible and customizable. | ||
| 630 | It is primarily controlled with the | ||
| 631 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-TCMODE" title="TCMODE">TCMODE</a></code> variable. | ||
| 632 | This variable controls which <code class="filename">tcmode-*.inc</code> file to include | ||
| 633 | from the <code class="filename">meta/conf/distro/include</code> directory within the | ||
| 634 | <a class="link" href="../dev-manual/source-directory.html" target="_self">source directory</a>. | ||
| 635 | </p> | ||
| 636 | <p> | ||
| 637 | The default value of <code class="filename">TCMODE</code> is "default" | ||
| 638 | (i.e. <code class="filename">tcmode-default.inc</code>). | ||
| 639 | However, other patterns are accepted. | ||
| 640 | In particular, "external-*" refers to external toolchains of which there are some | ||
| 641 | basic examples included in the OpenEmbedded Core (<code class="filename">meta</code>). | ||
| 642 | You can use your own custom toolchain definition in your own layer | ||
| 643 | (or as defined in the <code class="filename">local.conf</code> file) at the location | ||
| 644 | <code class="filename">conf/distro/include/tcmode-*.inc</code>. | ||
| 645 | </p> | ||
| 646 | <p> | ||
| 647 | In addition to the toolchain configuration, you also need a corresponding toolchain recipe file. | ||
| 648 | This recipe file needs to package up any pre-built objects in the toolchain such as | ||
| 649 | <code class="filename">libgcc</code>, <code class="filename">libstdcc++</code>, | ||
| 650 | any locales, and <code class="filename">libc</code>. | ||
| 651 | An example is the <code class="filename">external-sourcery-toolchain.bb</code>, which is located | ||
| 652 | in <code class="filename">meta/recipes-core/meta/</code> within the source directory. | ||
| 653 | </p> | ||
| 654 | </td> | ||
| 655 | </tr> | ||
| 656 | <tr class="question" title="12.23."> | ||
| 657 | <td align="left" valign="top"> | ||
| 658 | <a name="idm4577168"></a><a name="idm5139136"></a><p><b>12.23.</b></p> | ||
| 659 | </td> | ||
| 660 | <td align="left" valign="top"><p><a name="how-does-the-yocto-project-obtain-source-code-and-will-it-work-behind-my-firewall-or-proxy-server"></a> | ||
| 661 | How does the OpenEmbedded build system obtain source code and will it work behind my | ||
| 662 | firewall or proxy server? | ||
| 663 | </p></td> | ||
| 664 | </tr> | ||
| 665 | <tr class="answer"> | ||
| 666 | <td align="left" valign="top"></td> | ||
| 667 | <td align="left" valign="top"> | ||
| 668 | <p> | ||
| 669 | The way the build system obtains source code is highly configurable. | ||
| 670 | You can setup the build system to get source code in most environments if | ||
| 671 | HTTP transport is available. | ||
| 672 | </p> | ||
| 673 | <p> | ||
| 674 | When the build system searches for source code, it first tries the local download directory. | ||
| 675 | If that location fails, Poky tries PREMIRRORS, the upstream source, | ||
| 676 | and then MIRRORS in that order. | ||
| 677 | </p> | ||
| 678 | <p> | ||
| 679 | By default, the OpenEmbedded build system uses the Yocto Project source PREMIRRORS | ||
| 680 | for SCM-based sources, | ||
| 681 | upstreams for normal tarballs, and then falls back to a number of other mirrors | ||
| 682 | including the Yocto Project source mirror if those fail. | ||
| 683 | </p> | ||
| 684 | <p> | ||
| 685 | As an example, you could add a specific server for Poky to attempt before any | ||
| 686 | others by adding something like the following to the <code class="filename">local.conf</code> | ||
| 687 | configuration file: | ||
| 688 | </p> | ||
| 689 | <pre class="literallayout"> | ||
| 690 | PREMIRRORS_prepend = "\ | ||
| 691 | git://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 692 | ftp://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 693 | http://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 694 | https://.*/.* http://www.yoctoproject.org/sources/ \n" | ||
| 695 | </pre> | ||
| 696 | <p> | ||
| 697 | </p> | ||
| 698 | <p> | ||
| 699 | These changes cause Poky to intercept Git, FTP, HTTP, and HTTPS | ||
| 700 | requests and direct them to the <code class="filename">http://</code> sources mirror. | ||
| 701 | You can use <code class="filename">file://</code> URLs to point to local directories | ||
| 702 | or network shares as well. | ||
| 703 | </p> | ||
| 704 | <p> | ||
| 705 | Aside from the previous technique, these options also exist: | ||
| 706 | </p> | ||
| 707 | <pre class="literallayout"> | ||
| 708 | BB_NO_NETWORK = "1" | ||
| 709 | </pre> | ||
| 710 | <p> | ||
| 711 | This statement tells BitBake to throw an error instead of trying to access the | ||
| 712 | Internet. | ||
| 713 | This technique is useful if you want to ensure code builds only from local sources. | ||
| 714 | </p> | ||
| 715 | <p> | ||
| 716 | Here is another technique: | ||
| 717 | </p> | ||
| 718 | <pre class="literallayout"> | ||
| 719 | BB_FETCH_PREMIRRORONLY = "1" | ||
| 720 | </pre> | ||
| 721 | <p> | ||
| 722 | This statement limits Poky to pulling source from the PREMIRRORS only. | ||
| 723 | Again, this technique is useful for reproducing builds. | ||
| 724 | </p> | ||
| 725 | <p> | ||
| 726 | Here is another technique: | ||
| 727 | </p> | ||
| 728 | <pre class="literallayout"> | ||
| 729 | BB_GENERATE_MIRROR_TARBALLS = "1" | ||
| 730 | </pre> | ||
| 731 | <p> | ||
| 732 | This statement tells Poky to generate mirror tarballs. | ||
| 733 | This technique is useful if you want to create a mirror server. | ||
| 734 | If not, however, the technique can simply waste time during the build. | ||
| 735 | </p> | ||
| 736 | <p> | ||
| 737 | Finally, consider an example where you are behind an HTTP-only firewall. | ||
| 738 | You could make the following changes to the <code class="filename">local.conf</code> | ||
| 739 | configuration file as long as the PREMIRROR server is up to date: | ||
| 740 | </p> | ||
| 741 | <pre class="literallayout"> | ||
| 742 | PREMIRRORS_prepend = "\ | ||
| 743 | ftp://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 744 | http://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 745 | https://.*/.* http://www.yoctoproject.org/sources/ \n" | ||
| 746 | BB_FETCH_PREMIRRORONLY = "1" | ||
| 747 | </pre> | ||
| 748 | <p> | ||
| 749 | These changes would cause Poky to successfully fetch source over HTTP and | ||
| 750 | any network accesses to anything other than the PREMIRROR would fail. | ||
| 751 | </p> | ||
| 752 | <p> | ||
| 753 | The build system also honors the standard shell environment variables | ||
| 754 | <code class="filename">http_proxy</code>, <code class="filename">ftp_proxy</code>, | ||
| 755 | <code class="filename">https_proxy</code>, and <code class="filename">all_proxy</code> | ||
| 756 | to redirect requests through proxy servers. | ||
| 757 | </p> | ||
| 758 | </td> | ||
| 759 | </tr> | ||
| 760 | <tr class="question" title="12.24."> | ||
| 761 | <td align="left" valign="top"> | ||
| 762 | <a name="idm3953616"></a><a name="idm3685632"></a><p><b>12.24.</b></p> | ||
| 763 | </td> | ||
| 764 | <td align="left" valign="top"><p> | ||
| 765 | Can I get rid of build output so I can start over? | ||
| 766 | </p></td> | ||
| 767 | </tr> | ||
| 768 | <tr class="answer"> | ||
| 769 | <td align="left" valign="top"></td> | ||
| 770 | <td align="left" valign="top"> | ||
| 771 | <p> | ||
| 772 | Yes - you can easily do this. | ||
| 773 | When you use BitBake to build an image, all the build output goes into the | ||
| 774 | directory created when you source the <code class="filename">oe-init-build-env</code> | ||
| 775 | setup file. | ||
| 776 | By default, this <a class="link" href="../dev-manual/build-directory.html" target="_self">build directory</a> | ||
| 777 | is named <code class="filename">build</code> but can be named | ||
| 778 | anything you want. | ||
| 779 | </p> | ||
| 780 | <p> | ||
| 781 | Within the build directory is the <code class="filename">tmp</code> directory. | ||
| 782 | To remove all the build output yet preserve any source code or downloaded files | ||
| 783 | from previous builds, simply remove the <code class="filename">tmp</code> directory. | ||
| 784 | </p> | ||
| 785 | </td> | ||
| 786 | </tr> | ||
| 787 | </tbody> | ||
| 788 | </table> | ||
| 789 | </div> | ||
| 790 | </div></body> | ||
| 791 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/fedora-packages.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/fedora-packages.html new file mode 100644 index 0000000000..d1dc7d1f33 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/fedora-packages.html | |||
| @@ -0,0 +1,62 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>1.3.2.2. Fedora Packages</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="required-packages-for-the-host-development-system.html" title="1.3.2. Required Packages for the Host Development System"> | ||
| 9 | <link rel="prev" href="ubuntu-packages.html" title="1.3.2.1. Ubuntu"> | ||
| 10 | <link rel="next" href="opensuse-packages.html" title="1.3.2.3. OpenSUSE Packages"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="1.3.2.2. Fedora Packages"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="fedora-packages"></a>1.3.2.2. Fedora Packages</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | The following list shows the required packages by function | ||
| 17 | given a supported Fedora Linux distribution: | ||
| 18 | </p> | ||
| 19 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 20 | <li class="listitem"> | ||
| 21 | <p><span class="emphasis"><em>Essentials:</em></span> | ||
| 22 | Packages needed to build an image for a headless | ||
| 23 | system: | ||
| 24 | </p> | ||
| 25 | <pre class="literallayout"> | ||
| 26 | $ sudo yum install gawk make wget tar bzip2 gzip python unzip perl patch \ | ||
| 27 | diffutils diffstat git cpp gcc gcc-c++ eglibc-devel texinfo chrpath \ | ||
| 28 | ccache | ||
| 29 | </pre> | ||
| 30 | </li> | ||
| 31 | <li class="listitem"> | ||
| 32 | <p><span class="emphasis"><em>Graphical Extras:</em></span> | ||
| 33 | Packages recommended if the host system has graphics support: | ||
| 34 | </p> | ||
| 35 | <pre class="literallayout"> | ||
| 36 | $ sudo yum install SDL-devel xterm | ||
| 37 | </pre> | ||
| 38 | </li> | ||
| 39 | <li class="listitem"> | ||
| 40 | <p><span class="emphasis"><em>Documentation:</em></span> | ||
| 41 | Packages needed if you are going to build out the | ||
| 42 | Yocto Project documentation manuals: | ||
| 43 | </p> | ||
| 44 | <pre class="literallayout"> | ||
| 45 | $ sudo yum install make docbook-style-dsssl docbook-style-xsl \ | ||
| 46 | docbook-dtds docbook-utils fop libxslt | ||
| 47 | </pre> | ||
| 48 | </li> | ||
| 49 | <li class="listitem"> | ||
| 50 | <p><span class="emphasis"><em>ADT Installer Extras:</em></span> | ||
| 51 | Packages needed if you are going to be using the | ||
| 52 | <a class="link" href="../adt-manual/using-the-adt-installer.html" target="_self">Application Development Toolkit (ADT) Installer</a>: | ||
| 53 | </p> | ||
| 54 | <pre class="literallayout"> | ||
| 55 | $ sudo yum install autoconf automake libtool glib2-devel | ||
| 56 | </pre> | ||
| 57 | </li> | ||
| 58 | </ul></div> | ||
| 59 | <p> | ||
| 60 | </p> | ||
| 61 | </div></body> | ||
| 62 | </html> | ||
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| @@ -0,0 +1,33 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.3.2. Future Development and Limitations</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="x32.html" title="3.3. x32"> | ||
| 9 | <link rel="prev" href="support.html" title="3.3.1. Support"> | ||
| 10 | <link rel="next" href="using-x32-right-now.html" title="3.3.3. Using x32 Right Now"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.3.2. Future Development and Limitations"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="future-development-and-limitations"></a>3.3.2. Future Development and Limitations</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | As of this Yocto Project release, the x32 psABI kernel and library interfaces | ||
| 17 | specifications are not finalized. | ||
| 18 | </p> | ||
| 19 | <p> | ||
| 20 | Future Plans for the x32 psABI in the Yocto Project include the following: | ||
| 21 | </p> | ||
| 22 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 23 | <li class="listitem"><p>Enhance and fix the few remaining recipes so they | ||
| 24 | work with and support x32 toolchains.</p></li> | ||
| 25 | <li class="listitem"><p>Enhance RPM Package Manager (RPM) support for x32 binaries.</p></li> | ||
| 26 | <li class="listitem"><p>Support larger images.</p></li> | ||
| 27 | <li class="listitem"><p>Integrate x32 recipes, toolchain, and kernel changes from | ||
| 28 | <code class="filename">experimental/meta-x32</code> into OE-core.</p></li> | ||
| 29 | </ul></div> | ||
| 30 | <p> | ||
| 31 | </p> | ||
| 32 | </div></body> | ||
| 33 | </html> | ||
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| @@ -0,0 +1,25 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.1.3. documentation</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-core.html" title="5.1. Top level core components"> | ||
| 9 | <link rel="prev" href="structure-core-build.html" title="5.1.2. build/"> | ||
| 10 | <link rel="next" href="structure-core-meta.html" title="5.1.4. meta/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.1.3. documentation"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="handbook"></a>5.1.3. <code class="filename">documentation</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory holds the source for the Yocto Project documentation | ||
| 18 | as well as templates and tools that allow you to generate PDF and HTML | ||
| 19 | versions of the manuals. | ||
| 20 | Each manual is contained in a sub-folder. | ||
| 21 | For example, the files for this manual reside in | ||
| 22 | <code class="filename">poky-ref-manual</code>. | ||
| 23 | </p> | ||
| 24 | </div></body> | ||
| 25 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/index.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/index.html new file mode 100644 index 0000000000..70ef00544c --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/index.html | |||
| @@ -0,0 +1,327 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>The Yocto Project Reference Manual</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="next" href="intro.html" title="Chapter 1. Introduction"> | ||
| 9 | </head> | ||
| 10 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div lang="en" class="book" title="The Yocto Project Reference Manual"> | ||
| 11 | <div class="titlepage"> | ||
| 12 | <div> | ||
| 13 | <div><h1 class="title"> | ||
| 14 | <a name="poky-ref-manual"></a> | ||
| 15 | The Yocto Project Reference Manual | ||
| 16 | </h1></div> | ||
| 17 | <div><div class="authorgroup"> | ||
| 18 | <div class="author"> | ||
| 19 | <h3 class="author"> | ||
| 20 | <span class="firstname">Richard</span> <span class="surname">Purdie</span> | ||
| 21 | </h3> | ||
| 22 | <div class="affiliation"> | ||
| 23 | <span class="orgname">Linux Foundation<br></span> | ||
| 24 | </div> | ||
| 25 | <code class="email"><<a class="email" href="mailto:richard.purdie@linuxfoundation.org">richard.purdie@linuxfoundation.org</a>></code> | ||
| 26 | </div> | ||
| 27 | |||
| 28 | </div></div> | ||
| 29 | <div><p class="copyright">Copyright © 2010-2013 Linux Foundation</p></div> | ||
| 30 | <div><div class="legalnotice" title="Legal Notice"> | ||
| 31 | <a name="idm3374608"></a> | ||
| 32 | <p> | ||
| 33 | Permission is granted to copy, distribute and/or modify this document under | ||
| 34 | the terms of the <a class="ulink" href="http://creativecommons.org/licenses/by-sa/2.0/uk/" target="_self">Creative Commons Attribution-Share Alike 2.0 UK: England & Wales</a> as published by Creative Commons. | ||
| 35 | </p> | ||
| 36 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 37 | <h3 class="title">Note</h3> | ||
| 38 | Due to production processes, there could be differences between the Yocto Project | ||
| 39 | documentation bundled in the release tarball and the | ||
| 40 | <a class="link" href="../poky-ref-manual/index.html" target="_self">Yocto Project Reference Manual</a> on | ||
| 41 | the <a class="ulink" href="http://www.yoctoproject.org" target="_self">Yocto Project</a> website. | ||
| 42 | For the latest version of this manual, see the manual on the website. | ||
| 43 | </div> | ||
| 44 | </div></div> | ||
| 45 | <div><div class="revhistory"><table border="1" width="100%" summary="Revision history"> | ||
| 46 | <tr><th align="left" valign="top" colspan="2"><b>Revision History</b></th></tr> | ||
| 47 | <tr> | ||
| 48 | <td align="left">Revision 4.0+git</td> | ||
| 49 | <td align="left">24 November 2010</td> | ||
| 50 | </tr> | ||
| 51 | <tr><td align="left" colspan="2">Released with the Yocto Project 0.9 Release</td></tr> | ||
| 52 | <tr> | ||
| 53 | <td align="left">Revision 1.0</td> | ||
| 54 | <td align="left">6 April 2011</td> | ||
| 55 | </tr> | ||
| 56 | <tr><td align="left" colspan="2">Released with the Yocto Project 1.0 Release.</td></tr> | ||
| 57 | <tr> | ||
| 58 | <td align="left">Revision 1.0.1</td> | ||
| 59 | <td align="left">23 May 2011</td> | ||
| 60 | </tr> | ||
| 61 | <tr><td align="left" colspan="2">Released with the Yocto Project 1.0.1 Release.</td></tr> | ||
| 62 | <tr> | ||
| 63 | <td align="left">Revision 1.1</td> | ||
| 64 | <td align="left">6 October 2011</td> | ||
| 65 | </tr> | ||
| 66 | <tr><td align="left" colspan="2">Released with the Yocto Project 1.1 Release.</td></tr> | ||
| 67 | <tr> | ||
| 68 | <td align="left">Revision 1.2</td> | ||
| 69 | <td align="left">April 2012</td> | ||
| 70 | </tr> | ||
| 71 | <tr><td align="left" colspan="2">Released with the Yocto Project 1.2 Release.</td></tr> | ||
| 72 | <tr> | ||
| 73 | <td align="left">Revision 1.3</td> | ||
| 74 | <td align="left">October 2012</td> | ||
| 75 | </tr> | ||
| 76 | <tr><td align="left" colspan="2">Released with the Yocto Project 1.3 Release.</td></tr> | ||
| 77 | <tr> | ||
| 78 | <td align="left">Revision 1.4</td> | ||
| 79 | <td align="left">Sometime in 2013</td> | ||
| 80 | </tr> | ||
| 81 | <tr><td align="left" colspan="2">Released with the Yocto Project 1.4 Release.</td></tr> | ||
| 82 | </table></div></div> | ||
| 83 | </div> | ||
| 84 | <hr> | ||
| 85 | </div> | ||
| 86 | <div class="toc"> | ||
| 87 | <p><b>Table of Contents</b></p> | ||
| 88 | <dl> | ||
| 89 | <dt><span class="chapter"><a href="intro.html">1. Introduction</a></span></dt> | ||
| 90 | <dd><dl> | ||
| 91 | <dt><span class="section"><a href="intro-welcome.html">1.1. Introduction</a></span></dt> | ||
| 92 | <dt><span class="section"><a href="intro-manualoverview.html">1.2. Documentation Overview</a></span></dt> | ||
| 93 | <dt><span class="section"><a href="intro-requirements.html">1.3. System Requirements</a></span></dt> | ||
| 94 | <dd><dl> | ||
| 95 | <dt><span class="section"><a href="detailed-supported-distros.html">1.3.1. Supported Linux Distributions</a></span></dt> | ||
| 96 | <dt><span class="section"><a href="required-packages-for-the-host-development-system.html">1.3.2. Required Packages for the Host Development System</a></span></dt> | ||
| 97 | </dl></dd> | ||
| 98 | <dt><span class="section"><a href="intro-getit.html">1.4. Obtaining the Yocto Project</a></span></dt> | ||
| 99 | <dt><span class="section"><a href="intro-getit-dev.html">1.5. Development Checkouts</a></span></dt> | ||
| 100 | </dl></dd> | ||
| 101 | <dt><span class="chapter"><a href="usingpoky.html">2. Using the Yocto Project</a></span></dt> | ||
| 102 | <dd><dl> | ||
| 103 | <dt><span class="section"><a href="usingpoky-build.html">2.1. Running a Build</a></span></dt> | ||
| 104 | <dd><dl> | ||
| 105 | <dt><span class="section"><a href="build-overview.html">2.1.1. Build Overview</a></span></dt> | ||
| 106 | <dt><span class="section"><a href="building-an-image-using-gpl-components.html">2.1.2. Building an Image Using GPL Components</a></span></dt> | ||
| 107 | </dl></dd> | ||
| 108 | <dt><span class="section"><a href="usingpoky-install.html">2.2. Installing and Using the Result</a></span></dt> | ||
| 109 | <dt><span class="section"><a href="usingpoky-debugging.html">2.3. Debugging Build Failures</a></span></dt> | ||
| 110 | <dd><dl> | ||
| 111 | <dt><span class="section"><a href="usingpoky-debugging-taskfailures.html">2.3.1. Task Failures</a></span></dt> | ||
| 112 | <dt><span class="section"><a href="usingpoky-debugging-taskrunning.html">2.3.2. Running Specific Tasks</a></span></dt> | ||
| 113 | <dt><span class="section"><a href="usingpoky-debugging-dependencies.html">2.3.3. Dependency Graphs</a></span></dt> | ||
| 114 | <dt><span class="section"><a href="usingpoky-debugging-bitbake.html">2.3.4. General BitBake Problems</a></span></dt> | ||
| 115 | <dt><span class="section"><a href="usingpoky-debugging-buildfile.html">2.3.5. Building with No Dependencies</a></span></dt> | ||
| 116 | <dt><span class="section"><a href="usingpoky-debugging-variables.html">2.3.6. Variables</a></span></dt> | ||
| 117 | <dt><span class="section"><a href="recipe-logging-mechanisms.html">2.3.7. Recipe Logging Mechanisms</a></span></dt> | ||
| 118 | <dt><span class="section"><a href="usingpoky-debugging-others.html">2.3.8. Other Tips</a></span></dt> | ||
| 119 | </dl></dd> | ||
| 120 | <dt><span class="section"><a href="maintaining-build-output-quality.html">2.4. Maintaining Build Output Quality</a></span></dt> | ||
| 121 | <dd><dl> | ||
| 122 | <dt><span class="section"><a href="enabling-and-disabling-build-history.html">2.4.1. Enabling and Disabling Build History</a></span></dt> | ||
| 123 | <dt><span class="section"><a href="understanding-what-the-build-history-contains.html">2.4.2. Understanding What the Build History Contains</a></span></dt> | ||
| 124 | </dl></dd> | ||
| 125 | </dl></dd> | ||
| 126 | <dt><span class="chapter"><a href="technical-details.html">3. Technical Details</a></span></dt> | ||
| 127 | <dd><dl> | ||
| 128 | <dt><span class="section"><a href="usingpoky-components.html">3.1. Yocto Project Components</a></span></dt> | ||
| 129 | <dd><dl> | ||
| 130 | <dt><span class="section"><a href="usingpoky-components-bitbake.html">3.1.1. BitBake</a></span></dt> | ||
| 131 | <dt><span class="section"><a href="usingpoky-components-metadata.html">3.1.2. Metadata (Recipes)</a></span></dt> | ||
| 132 | <dt><span class="section"><a href="usingpoky-components-classes.html">3.1.3. Classes</a></span></dt> | ||
| 133 | <dt><span class="section"><a href="usingpoky-components-configuration.html">3.1.4. Configuration</a></span></dt> | ||
| 134 | </dl></dd> | ||
| 135 | <dt><span class="section"><a href="shared-state-cache.html">3.2. Shared State Cache</a></span></dt> | ||
| 136 | <dd><dl> | ||
| 137 | <dt><span class="section"><a href="overall-architecture.html">3.2.1. Overall Architecture</a></span></dt> | ||
| 138 | <dt><span class="section"><a href="checksums.html">3.2.2. Checksums (Signatures)</a></span></dt> | ||
| 139 | <dt><span class="section"><a href="shared-state.html">3.2.3. Shared State</a></span></dt> | ||
| 140 | <dt><span class="section"><a href="tips-and-tricks.html">3.2.4. Tips and Tricks</a></span></dt> | ||
| 141 | </dl></dd> | ||
| 142 | <dt><span class="section"><a href="x32.html">3.3. x32</a></span></dt> | ||
| 143 | <dd><dl> | ||
| 144 | <dt><span class="section"><a href="support.html">3.3.1. Support</a></span></dt> | ||
| 145 | <dt><span class="section"><a href="future-development-and-limitations.html">3.3.2. Future Development and Limitations</a></span></dt> | ||
| 146 | <dt><span class="section"><a href="using-x32-right-now.html">3.3.3. Using x32 Right Now</a></span></dt> | ||
| 147 | </dl></dd> | ||
| 148 | <dt><span class="section"><a href="licenses.html">3.4. Licenses</a></span></dt> | ||
| 149 | <dd><dl> | ||
| 150 | <dt><span class="section"><a href="usingpoky-configuring-LIC_FILES_CHKSUM.html">3.4.1. Tracking License Changes</a></span></dt> | ||
| 151 | <dt><span class="section"><a href="enabling-commercially-licensed-recipes.html">3.4.2. Enabling Commercially Licensed Recipes</a></span></dt> | ||
| 152 | </dl></dd> | ||
| 153 | </dl></dd> | ||
| 154 | <dt><span class="chapter"><a href="migration.html">4. Migrating to a Newer Yocto Project Release</a></span></dt> | ||
| 155 | <dd><dl> | ||
| 156 | <dt><span class="section"><a href="moving-to-the-yocto-project-1.3-release.html">4.1. Moving to the Yocto Project 1.3 Release</a></span></dt> | ||
| 157 | <dd><dl> | ||
| 158 | <dt><span class="section"><a href="1.3-local-configuration.html">4.1.1. Local Configuration</a></span></dt> | ||
| 159 | <dt><span class="section"><a href="1.3-recipes.html">4.1.2. Recipes</a></span></dt> | ||
| 160 | </dl></dd> | ||
| 161 | </dl></dd> | ||
| 162 | <dt><span class="chapter"><a href="ref-structure.html">5. Source Directory Structure</a></span></dt> | ||
| 163 | <dd><dl> | ||
| 164 | <dt><span class="section"><a href="structure-core.html">5.1. Top level core components</a></span></dt> | ||
| 165 | <dd><dl> | ||
| 166 | <dt><span class="section"><a href="structure-core-bitbake.html">5.1.1. <code class="filename">bitbake/</code></a></span></dt> | ||
| 167 | <dt><span class="section"><a href="structure-core-build.html">5.1.2. <code class="filename">build/</code></a></span></dt> | ||
| 168 | <dt><span class="section"><a href="handbook.html">5.1.3. <code class="filename">documentation</code></a></span></dt> | ||
| 169 | <dt><span class="section"><a href="structure-core-meta.html">5.1.4. <code class="filename">meta/</code></a></span></dt> | ||
| 170 | <dt><span class="section"><a href="structure-core-meta-yocto.html">5.1.5. <code class="filename">meta-yocto/</code></a></span></dt> | ||
| 171 | <dt><span class="section"><a href="structure-core-meta-yocto-bsp.html">5.1.6. <code class="filename">meta-yocto-bsp/</code></a></span></dt> | ||
| 172 | <dt><span class="section"><a href="structure-meta-hob.html">5.1.7. <code class="filename">meta-hob/</code></a></span></dt> | ||
| 173 | <dt><span class="section"><a href="structure-meta-skeleton.html">5.1.8. <code class="filename">meta-skeleton/</code></a></span></dt> | ||
| 174 | <dt><span class="section"><a href="structure-core-scripts.html">5.1.9. <code class="filename">scripts/</code></a></span></dt> | ||
| 175 | <dt><span class="section"><a href="structure-core-script.html">5.1.10. <code class="filename">oe-init-build-env</code></a></span></dt> | ||
| 176 | <dt><span class="section"><a href="structure-basic-top-level.html">5.1.11. <code class="filename">LICENSE, README, and README.hardware</code></a></span></dt> | ||
| 177 | </dl></dd> | ||
| 178 | <dt><span class="section"><a href="structure-build.html">5.2. The Build Directory - <code class="filename">build/</code></a></span></dt> | ||
| 179 | <dd><dl> | ||
| 180 | <dt><span class="section"><a href="structure-build-pseudodone.html">5.2.1. <code class="filename">build/pseudodone</code></a></span></dt> | ||
| 181 | <dt><span class="section"><a href="structure-build-conf-local.conf.html">5.2.2. <code class="filename">build/conf/local.conf</code></a></span></dt> | ||
| 182 | <dt><span class="section"><a href="structure-build-conf-bblayers.conf.html">5.2.3. <code class="filename">build/conf/bblayers.conf</code></a></span></dt> | ||
| 183 | <dt><span class="section"><a href="structure-build-conf-sanity_info.html">5.2.4. <code class="filename">build/conf/sanity_info</code></a></span></dt> | ||
| 184 | <dt><span class="section"><a href="structure-build-downloads.html">5.2.5. <code class="filename">build/downloads/</code></a></span></dt> | ||
| 185 | <dt><span class="section"><a href="structure-build-sstate-cache.html">5.2.6. <code class="filename">build/sstate-cache/</code></a></span></dt> | ||
| 186 | <dt><span class="section"><a href="structure-build-tmp.html">5.2.7. <code class="filename">build/tmp/</code></a></span></dt> | ||
| 187 | <dt><span class="section"><a href="structure-build-tmp-buildstats.html">5.2.8. <code class="filename">build/tmp/buildstats/</code></a></span></dt> | ||
| 188 | <dt><span class="section"><a href="structure-build-tmp-cache.html">5.2.9. <code class="filename">build/tmp/cache/</code></a></span></dt> | ||
| 189 | <dt><span class="section"><a href="structure-build-tmp-deploy.html">5.2.10. <code class="filename">build/tmp/deploy/</code></a></span></dt> | ||
| 190 | <dt><span class="section"><a href="structure-build-tmp-deploy-deb.html">5.2.11. <code class="filename">build/tmp/deploy/deb/</code></a></span></dt> | ||
| 191 | <dt><span class="section"><a href="structure-build-tmp-deploy-rpm.html">5.2.12. <code class="filename">build/tmp/deploy/rpm/</code></a></span></dt> | ||
| 192 | <dt><span class="section"><a href="structure-build-tmp-deploy-licenses.html">5.2.13. <code class="filename">build/tmp/deploy/licenses/</code></a></span></dt> | ||
| 193 | <dt><span class="section"><a href="structure-build-tmp-deploy-images.html">5.2.14. <code class="filename">build/tmp/deploy/images/</code></a></span></dt> | ||
| 194 | <dt><span class="section"><a href="structure-build-tmp-deploy-ipk.html">5.2.15. <code class="filename">build/tmp/deploy/ipk/</code></a></span></dt> | ||
| 195 | <dt><span class="section"><a href="structure-build-tmp-sysroots.html">5.2.16. <code class="filename">build/tmp/sysroots/</code></a></span></dt> | ||
| 196 | <dt><span class="section"><a href="structure-build-tmp-stamps.html">5.2.17. <code class="filename">build/tmp/stamps/</code></a></span></dt> | ||
| 197 | <dt><span class="section"><a href="structure-build-tmp-log.html">5.2.18. <code class="filename">build/tmp/log/</code></a></span></dt> | ||
| 198 | <dt><span class="section"><a href="structure-build-tmp-pkgdata.html">5.2.19. <code class="filename">build/tmp/pkgdata/</code></a></span></dt> | ||
| 199 | <dt><span class="section"><a href="structure-build-tmp-work.html">5.2.20. <code class="filename">build/tmp/work/</code></a></span></dt> | ||
| 200 | </dl></dd> | ||
| 201 | <dt><span class="section"><a href="structure-meta.html">5.3. The Metadata - <code class="filename">meta/</code></a></span></dt> | ||
| 202 | <dd><dl> | ||
| 203 | <dt><span class="section"><a href="structure-meta-classes.html">5.3.1. <code class="filename">meta/classes/</code></a></span></dt> | ||
| 204 | <dt><span class="section"><a href="structure-meta-conf.html">5.3.2. <code class="filename">meta/conf/</code></a></span></dt> | ||
| 205 | <dt><span class="section"><a href="structure-meta-conf-machine.html">5.3.3. <code class="filename">meta/conf/machine/</code></a></span></dt> | ||
| 206 | <dt><span class="section"><a href="structure-meta-conf-distro.html">5.3.4. <code class="filename">meta/conf/distro/</code></a></span></dt> | ||
| 207 | <dt><span class="section"><a href="structure-meta-recipes-bsp.html">5.3.5. <code class="filename">meta/recipes-bsp/</code></a></span></dt> | ||
| 208 | <dt><span class="section"><a href="structure-meta-recipes-connectivity.html">5.3.6. <code class="filename">meta/recipes-connectivity/</code></a></span></dt> | ||
| 209 | <dt><span class="section"><a href="structure-meta-recipes-core.html">5.3.7. <code class="filename">meta/recipes-core/</code></a></span></dt> | ||
| 210 | <dt><span class="section"><a href="structure-meta-recipes-devtools.html">5.3.8. <code class="filename">meta/recipes-devtools/</code></a></span></dt> | ||
| 211 | <dt><span class="section"><a href="structure-meta-recipes-extended.html">5.3.9. <code class="filename">meta/recipes-extended/</code></a></span></dt> | ||
| 212 | <dt><span class="section"><a href="structure-meta-recipes-gnome.html">5.3.10. <code class="filename">meta/recipes-gnome/</code></a></span></dt> | ||
| 213 | <dt><span class="section"><a href="structure-meta-recipes-graphics.html">5.3.11. <code class="filename">meta/recipes-graphics/</code></a></span></dt> | ||
| 214 | <dt><span class="section"><a href="structure-meta-recipes-kernel.html">5.3.12. <code class="filename">meta/recipes-kernel/</code></a></span></dt> | ||
| 215 | <dt><span class="section"><a href="structure-meta-recipes-multimedia.html">5.3.13. <code class="filename">meta/recipes-multimedia/</code></a></span></dt> | ||
| 216 | <dt><span class="section"><a href="structure-meta-recipes-qt.html">5.3.14. <code class="filename">meta/recipes-qt/</code></a></span></dt> | ||
| 217 | <dt><span class="section"><a href="structure-meta-recipes-rt.html">5.3.15. <code class="filename">meta/recipes-rt/</code></a></span></dt> | ||
| 218 | <dt><span class="section"><a href="structure-meta-recipes-sato.html">5.3.16. <code class="filename">meta/recipes-sato/</code></a></span></dt> | ||
| 219 | <dt><span class="section"><a href="structure-meta-recipes-support.html">5.3.17. <code class="filename">meta/recipes-support/</code></a></span></dt> | ||
| 220 | <dt><span class="section"><a href="structure-meta-site.html">5.3.18. <code class="filename">meta/site/</code></a></span></dt> | ||
| 221 | <dt><span class="section"><a href="structure-meta-recipes-txt.html">5.3.19. <code class="filename">meta/recipes.txt</code></a></span></dt> | ||
| 222 | </dl></dd> | ||
| 223 | </dl></dd> | ||
| 224 | <dt><span class="chapter"><a href="ref-bitbake.html">6. BitBake</a></span></dt> | ||
| 225 | <dd><dl> | ||
| 226 | <dt><span class="section"><a href="ref-bitbake-parsing.html">6.1. Parsing</a></span></dt> | ||
| 227 | <dt><span class="section"><a href="ref-bitbake-providers.html">6.2. Preferences and Providers</a></span></dt> | ||
| 228 | <dt><span class="section"><a href="ref-bitbake-dependencies.html">6.3. Dependencies</a></span></dt> | ||
| 229 | <dt><span class="section"><a href="ref-bitbake-tasklist.html">6.4. The Task List</a></span></dt> | ||
| 230 | <dt><span class="section"><a href="ref-bitbake-runtask.html">6.5. Running a Task</a></span></dt> | ||
| 231 | <dt><span class="section"><a href="ref-bitbake-commandline.html">6.6. BitBake Command Line</a></span></dt> | ||
| 232 | <dt><span class="section"><a href="ref-bitbake-fetchers.html">6.7. Fetchers</a></span></dt> | ||
| 233 | </dl></dd> | ||
| 234 | <dt><span class="chapter"><a href="ref-classes.html">7. Classes</a></span></dt> | ||
| 235 | <dd><dl> | ||
| 236 | <dt><span class="section"><a href="ref-classes-base.html">7.1. The base class - <code class="filename">base.bbclass</code></a></span></dt> | ||
| 237 | <dt><span class="section"><a href="ref-classes-autotools.html">7.2. Autotooled Packages - <code class="filename">autotools.bbclass</code></a></span></dt> | ||
| 238 | <dt><span class="section"><a href="ref-classes-update-alternatives.html">7.3. Alternatives - <code class="filename">update-alternatives.bbclass</code></a></span></dt> | ||
| 239 | <dt><span class="section"><a href="ref-classes-update-rc.d.html">7.4. Initscripts - <code class="filename">update-rc.d.bbclass</code></a></span></dt> | ||
| 240 | <dt><span class="section"><a href="ref-classes-binconfig.html">7.5. Binary config scripts - <code class="filename">binconfig.bbclass</code></a></span></dt> | ||
| 241 | <dt><span class="section"><a href="ref-classes-debian.html">7.6. Debian renaming - <code class="filename">debian.bbclass</code></a></span></dt> | ||
| 242 | <dt><span class="section"><a href="ref-classes-pkgconfig.html">7.7. Pkg-config - <code class="filename">pkgconfig.bbclass</code></a></span></dt> | ||
| 243 | <dt><span class="section"><a href="ref-classes-src-distribute.html">7.8. Distribution of sources - <code class="filename">src_distribute_local.bbclass</code></a></span></dt> | ||
| 244 | <dt><span class="section"><a href="ref-classes-perl.html">7.9. Perl modules - <code class="filename">cpan.bbclass</code></a></span></dt> | ||
| 245 | <dt><span class="section"><a href="ref-classes-distutils.html">7.10. Python extensions - <code class="filename">distutils.bbclass</code></a></span></dt> | ||
| 246 | <dt><span class="section"><a href="ref-classes-devshell.html">7.11. Developer Shell - <code class="filename">devshell.bbclass</code></a></span></dt> | ||
| 247 | <dt><span class="section"><a href="ref-classes-packagegroup.html">7.12. Package Groups - <code class="filename">packagegroup.bbclass</code></a></span></dt> | ||
| 248 | <dt><span class="section"><a href="ref-classes-package.html">7.13. Packaging - <code class="filename">package*.bbclass</code></a></span></dt> | ||
| 249 | <dt><span class="section"><a href="ref-classes-kernel.html">7.14. Building kernels - <code class="filename">kernel.bbclass</code></a></span></dt> | ||
| 250 | <dt><span class="section"><a href="ref-classes-image.html">7.15. Creating images - <code class="filename">image.bbclass</code> and <code class="filename">rootfs*.bbclass</code></a></span></dt> | ||
| 251 | <dt><span class="section"><a href="ref-classes-sanity.html">7.16. Host System sanity checks - <code class="filename">sanity.bbclass</code></a></span></dt> | ||
| 252 | <dt><span class="section"><a href="ref-classes-insane.html">7.17. Generated output quality assurance checks - <code class="filename">insane.bbclass</code></a></span></dt> | ||
| 253 | <dt><span class="section"><a href="ref-classes-siteinfo.html">7.18. Autotools configuration data cache - <code class="filename">siteinfo.bbclass</code></a></span></dt> | ||
| 254 | <dt><span class="section"><a href="ref-classes-useradd.html">7.19. Adding Users - <code class="filename">useradd.bbclass</code></a></span></dt> | ||
| 255 | <dt><span class="section"><a href="ref-classes-externalsrc.html">7.20. Using External Source - <code class="filename">externalsrc.bbclass</code></a></span></dt> | ||
| 256 | <dt><span class="section"><a href="ref-classes-others.html">7.21. Other Classes</a></span></dt> | ||
| 257 | </dl></dd> | ||
| 258 | <dt><span class="chapter"><a href="ref-images.html">8. Images</a></span></dt> | ||
| 259 | <dt><span class="chapter"><a href="ref-features.html">9. Reference: Features</a></span></dt> | ||
| 260 | <dd><dl> | ||
| 261 | <dt><span class="section"><a href="ref-features-distro.html">9.1. Distro</a></span></dt> | ||
| 262 | <dt><span class="section"><a href="ref-features-machine.html">9.2. Machine</a></span></dt> | ||
| 263 | <dt><span class="section"><a href="ref-features-image.html">9.3. Images</a></span></dt> | ||
| 264 | <dt><span class="section"><a href="ref-features-backfill.html">9.4. Feature Backfilling</a></span></dt> | ||
| 265 | </dl></dd> | ||
| 266 | <dt><span class="chapter"><a href="ref-variables-glos.html">10. Variables Glossary</a></span></dt> | ||
| 267 | <dd><dl><dt><span class="glossary"><a href="ref-variables-glos.html#ref-variables-glossary">Glossary</a></span></dt></dl></dd> | ||
| 268 | <dt><span class="chapter"><a href="ref-varlocality.html">11. Variable Context</a></span></dt> | ||
| 269 | <dd><dl> | ||
| 270 | <dt><span class="section"><a href="ref-varlocality-configuration.html">11.1. Configuration</a></span></dt> | ||
| 271 | <dd><dl> | ||
| 272 | <dt><span class="section"><a href="ref-varlocality-config-distro.html">11.1.1. Distribution (Distro)</a></span></dt> | ||
| 273 | <dt><span class="section"><a href="ref-varlocality-config-machine.html">11.1.2. Machine</a></span></dt> | ||
| 274 | <dt><span class="section"><a href="ref-varlocality-config-local.html">11.1.3. Local</a></span></dt> | ||
| 275 | </dl></dd> | ||
| 276 | <dt><span class="section"><a href="ref-varlocality-recipes.html">11.2. Recipes</a></span></dt> | ||
| 277 | <dd><dl> | ||
| 278 | <dt><span class="section"><a href="ref-varlocality-recipe-required.html">11.2.1. Required</a></span></dt> | ||
| 279 | <dt><span class="section"><a href="ref-varlocality-recipe-dependencies.html">11.2.2. Dependencies</a></span></dt> | ||
| 280 | <dt><span class="section"><a href="ref-varlocality-recipe-paths.html">11.2.3. Paths</a></span></dt> | ||
| 281 | <dt><span class="section"><a href="ref-varlocality-recipe-build.html">11.2.4. Extra Build Information</a></span></dt> | ||
| 282 | </dl></dd> | ||
| 283 | </dl></dd> | ||
| 284 | <dt><span class="chapter"><a href="faq.html">12. FAQ</a></span></dt> | ||
| 285 | <dt><span class="chapter"><a href="resources.html">13. Contributing to the Yocto Project</a></span></dt> | ||
| 286 | <dd><dl> | ||
| 287 | <dt><span class="section"><a href="resources-intro.html">13.1. Introduction</a></span></dt> | ||
| 288 | <dt><span class="section"><a href="resources-bugtracker.html">13.2. Tracking Bugs</a></span></dt> | ||
| 289 | <dt><span class="section"><a href="resources-mailinglist.html">13.3. Mailing lists</a></span></dt> | ||
| 290 | <dt><span class="section"><a href="resources-irc.html">13.4. Internet Relay Chat (IRC)</a></span></dt> | ||
| 291 | <dt><span class="section"><a href="resources-links.html">13.5. Links</a></span></dt> | ||
| 292 | <dt><span class="section"><a href="resources-contributions.html">13.6. Contributions</a></span></dt> | ||
| 293 | </dl></dd> | ||
| 294 | </dl> | ||
| 295 | </div> | ||
| 296 | |||
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| 323 | |||
| 324 | |||
| 325 | |||
| 326 | </div></body> | ||
| 327 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/index.xml b/documentation/ref-manual/eclipse/html/poky-ref-manual/index.xml new file mode 100644 index 0000000000..9edb4b92ac --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/index.xml | |||
| @@ -0,0 +1,2 @@ | |||
| 1 | <?xml version="1.0" encoding="utf-8" standalone="no"?> | ||
| 2 | <index/> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-getit-dev.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-getit-dev.html new file mode 100644 index 0000000000..0a2590314f --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-getit-dev.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>1.5. Development Checkouts</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="intro.html" title="Chapter 1. Introduction"> | ||
| 9 | <link rel="prev" href="intro-getit.html" title="1.4. Obtaining the Yocto Project"> | ||
| 10 | <link rel="next" href="usingpoky.html" title="Chapter 2. Using the Yocto Project"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="1.5. Development Checkouts"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="intro-getit-dev"></a>1.5. Development Checkouts</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | Development using the Yocto Project requires a local | ||
| 17 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 18 | You can set up the source directory by downloading a Yocto Project release tarball and unpacking it, | ||
| 19 | or by cloning a copy of the upstream | ||
| 20 | <a class="link" href="../dev-manual/poky.html" target="_self">Poky</a> Git repository. | ||
| 21 | For information on both these methods, see the | ||
| 22 | "<a class="link" href="../dev-manual/getting-setup.html" target="_self">Getting Setup</a>" | ||
| 23 | section in the Yocto Project Development Manual. | ||
| 24 | </p> | ||
| 25 | </div></body> | ||
| 26 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-getit.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-getit.html new file mode 100644 index 0000000000..56fa85f771 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-getit.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>1.4. Obtaining the Yocto Project</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="intro.html" title="Chapter 1. Introduction"> | ||
| 9 | <link rel="prev" href="centos-packages.html" title="1.3.2.4. CentOS Packages"> | ||
| 10 | <link rel="next" href="intro-getit-dev.html" title="1.5. Development Checkouts"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="1.4. Obtaining the Yocto Project"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="intro-getit"></a>1.4. Obtaining the Yocto Project</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | The Yocto Project development team makes the Yocto Project available through a number | ||
| 17 | of methods: | ||
| 18 | </p> | ||
| 19 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 20 | <li class="listitem"><p><span class="emphasis"><em>Releases:</em></span> Stable, tested releases are available through | ||
| 21 | <a class="ulink" href="http://downloads.yoctoproject.org/releases/yocto/" target="_self">http://downloads.yoctoproject.org/releases/yocto/</a>.</p></li> | ||
| 22 | <li class="listitem"><p><span class="emphasis"><em>Nightly Builds:</em></span> These releases are available at | ||
| 23 | <a class="ulink" href="http://autobuilder.yoctoproject.org/nightly" target="_self">http://autobuilder.yoctoproject.org/nightly</a>. | ||
| 24 | These builds include Yocto Project releases, meta-toolchain tarball installation scripts, and | ||
| 25 | experimental builds.</p></li> | ||
| 26 | <li class="listitem"><p><span class="emphasis"><em>Yocto Project Website:</em></span> You can find releases | ||
| 27 | of the Yocto Project and supported BSPs at the | ||
| 28 | <a class="ulink" href="http://www.yoctoproject.org" target="_self">Yocto Project website</a>. | ||
| 29 | Along with these downloads, you can find lots of other information at this site. | ||
| 30 | </p></li> | ||
| 31 | </ul></div> | ||
| 32 | <p> | ||
| 33 | </p> | ||
| 34 | </div></body> | ||
| 35 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-manualoverview.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-manualoverview.html new file mode 100644 index 0000000000..7f8e368e6d --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-manualoverview.html | |||
| @@ -0,0 +1,73 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>1.2. Documentation Overview</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="intro.html" title="Chapter 1. Introduction"> | ||
| 9 | <link rel="prev" href="intro-welcome.html" title="1.1. Introduction"> | ||
| 10 | <link rel="next" href="intro-requirements.html" title="1.3. System Requirements"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="1.2. Documentation Overview"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="intro-manualoverview"></a>1.2. Documentation Overview</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | This reference manual consists of the following: | ||
| 17 | </p> | ||
| 18 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 19 | <li class="listitem"><p><span class="emphasis"><em> | ||
| 20 | <a class="link" href="usingpoky.html" title="Chapter 2. Using the Yocto Project">Using the Yocto Project</a>:</em></span> This chapter | ||
| 21 | provides an overview of the components that make up the Yocto Project | ||
| 22 | followed by information about debugging images created in the Yocto Project. | ||
| 23 | </p></li> | ||
| 24 | <li class="listitem"><p><span class="emphasis"><em> | ||
| 25 | <a class="link" href="technical-details.html" title="Chapter 3. Technical Details">Technical Details</a>:</em></span> | ||
| 26 | This chapter describes fundamental Yocto Project components as well as an explanation | ||
| 27 | behind how the Yocto Project uses shared state (sstate) cache to speed build time. | ||
| 28 | </p></li> | ||
| 29 | <li class="listitem"><p><span class="emphasis"><em> | ||
| 30 | <a class="link" href="ref-structure.html" title="Chapter 5. Source Directory Structure">Directory Structure</a>:</em></span> | ||
| 31 | This chapter describes the | ||
| 32 | <a class="link" href="../dev-manual/source-directory.html" target="_self">source directory</a> created | ||
| 33 | either by unpacking a released Yocto Project tarball on your host development system, | ||
| 34 | or by cloning the upstream | ||
| 35 | <a class="link" href="../dev-manual/poky.html" target="_self">Poky</a> Git repository. | ||
| 36 | </p></li> | ||
| 37 | <li class="listitem"><p><span class="emphasis"><em> | ||
| 38 | <a class="link" href="ref-bitbake.html" title="Chapter 6. BitBake">BitBake</a>:</em></span> | ||
| 39 | This chapter provides an overview of the BitBake tool and its role within | ||
| 40 | the Yocto Project.</p></li> | ||
| 41 | <li class="listitem"><p><span class="emphasis"><em> | ||
| 42 | <a class="link" href="ref-classes.html" title="Chapter 7. Classes">Classes</a>:</em></span> | ||
| 43 | This chapter describes the classes used in the Yocto Project.</p></li> | ||
| 44 | <li class="listitem"><p><span class="emphasis"><em> | ||
| 45 | <a class="link" href="ref-images.html" title="Chapter 8. Images">Images</a>:</em></span> | ||
| 46 | This chapter describes the standard images that the Yocto Project supports. | ||
| 47 | </p></li> | ||
| 48 | <li class="listitem"><p><span class="emphasis"><em> | ||
| 49 | <a class="link" href="ref-features.html" title="Chapter 9. Reference: Features">Features</a>:</em></span> | ||
| 50 | This chapter describes mechanisms for creating distribution, machine, and image | ||
| 51 | features during the build process using the OpenEmbedded build system.</p></li> | ||
| 52 | <li class="listitem"><p><span class="emphasis"><em> | ||
| 53 | <a class="link" href="ref-variables-glos.html" title="Chapter 10. Variables Glossary">Variables Glossary</a>:</em></span> | ||
| 54 | This chapter presents most variables used by the OpenEmbedded build system, which | ||
| 55 | using BitBake. | ||
| 56 | Entries describe the function of the variable and how to apply them. | ||
| 57 | </p></li> | ||
| 58 | <li class="listitem"><p><span class="emphasis"><em> | ||
| 59 | <a class="link" href="ref-varlocality.html" title="Chapter 11. Variable Context">Variable Context</a>:</em></span> | ||
| 60 | This chapter provides variable locality or context.</p></li> | ||
| 61 | <li class="listitem"><p><span class="emphasis"><em> | ||
| 62 | <a class="link" href="faq.html" title="Chapter 12. FAQ">FAQ</a>:</em></span> | ||
| 63 | This chapter provides answers for commonly asked questions in the Yocto Project | ||
| 64 | development environment.</p></li> | ||
| 65 | <li class="listitem"><p><span class="emphasis"><em> | ||
| 66 | <a class="link" href="resources.html" title="Chapter 13. Contributing to the Yocto Project">Contributing to the Yocto Project</a>:</em></span> | ||
| 67 | This chapter provides guidance on how you can contribute back to the Yocto | ||
| 68 | Project.</p></li> | ||
| 69 | </ul></div> | ||
| 70 | <p> | ||
| 71 | </p> | ||
| 72 | </div></body> | ||
| 73 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-requirements.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-requirements.html new file mode 100644 index 0000000000..3cab8ac66c --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-requirements.html | |||
| @@ -0,0 +1,23 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>1.3. System Requirements</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="intro.html" title="Chapter 1. Introduction"> | ||
| 9 | <link rel="prev" href="intro-manualoverview.html" title="1.2. Documentation Overview"> | ||
| 10 | <link rel="next" href="detailed-supported-distros.html" title="1.3.1. Supported Linux Distributions"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="1.3. System Requirements"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="intro-requirements"></a>1.3. System Requirements</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | For general Yocto Project system requirements, see the | ||
| 17 | "<a class="link" href="../yocto-project-qs/yp-resources.html" target="_self">What You Need and How You Get It</a>" section | ||
| 18 | in the Yocto Project Quick Start. | ||
| 19 | The remainder of this section provides details on system requirements | ||
| 20 | not covered in the Yocto Project Quick Start. | ||
| 21 | </p> | ||
| 22 | </div></body> | ||
| 23 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-welcome.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-welcome.html new file mode 100644 index 0000000000..378b87f2ed --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/intro-welcome.html | |||
| @@ -0,0 +1,30 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>1.1. Introduction</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="intro.html" title="Chapter 1. Introduction"> | ||
| 9 | <link rel="prev" href="intro.html" title="Chapter 1. Introduction"> | ||
| 10 | <link rel="next" href="intro-manualoverview.html" title="1.2. Documentation Overview"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="1.1. Introduction"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="intro-welcome"></a>1.1. Introduction</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | This manual provides reference information for the current release of the Yocto Project. | ||
| 17 | The Yocto Project is an open-source collaboration project focused on embedded Linux | ||
| 18 | developers. | ||
| 19 | Amongst other things, the Yocto Project uses the OpenEmbedded build system, which | ||
| 20 | is based on the Poky project, to construct complete Linux images. | ||
| 21 | You can find complete introductory and getting started information on the Yocto Project | ||
| 22 | by reading the | ||
| 23 | <a class="link" href="../yocto-project-qs/index.html" target="_self">Yocto Project Quick Start</a>. | ||
| 24 | For task-based information using the Yocto Project, see the | ||
| 25 | <a class="link" href="../dev-manual/index.html" target="_self">Yocto Project Development Manual</a>. | ||
| 26 | You can also find lots of information on the Yocto Project on the | ||
| 27 | <a class="ulink" href="http://www.yoctoproject.org" target="_self">Yocto Project website</a>. | ||
| 28 | </p> | ||
| 29 | </div></body> | ||
| 30 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/intro.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/intro.html new file mode 100644 index 0000000000..1ff7cdcd05 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/intro.html | |||
| @@ -0,0 +1,30 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 1. Introduction</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 10 | <link rel="next" href="intro-welcome.html" title="1.1. Introduction"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 1. Introduction"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="intro"></a>Chapter 1. Introduction</h2></div></div></div> | ||
| 15 | <div class="toc"> | ||
| 16 | <p><b>Table of Contents</b></p> | ||
| 17 | <dl> | ||
| 18 | <dt><span class="section"><a href="intro-welcome.html">1.1. Introduction</a></span></dt> | ||
| 19 | <dt><span class="section"><a href="intro-manualoverview.html">1.2. Documentation Overview</a></span></dt> | ||
| 20 | <dt><span class="section"><a href="intro-requirements.html">1.3. System Requirements</a></span></dt> | ||
| 21 | <dd><dl> | ||
| 22 | <dt><span class="section"><a href="detailed-supported-distros.html">1.3.1. Supported Linux Distributions</a></span></dt> | ||
| 23 | <dt><span class="section"><a href="required-packages-for-the-host-development-system.html">1.3.2. Required Packages for the Host Development System</a></span></dt> | ||
| 24 | </dl></dd> | ||
| 25 | <dt><span class="section"><a href="intro-getit.html">1.4. Obtaining the Yocto Project</a></span></dt> | ||
| 26 | <dt><span class="section"><a href="intro-getit-dev.html">1.5. Development Checkouts</a></span></dt> | ||
| 27 | </dl> | ||
| 28 | </div> | ||
| 29 | </div></body> | ||
| 30 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/invalidating-shared-state.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/invalidating-shared-state.html new file mode 100644 index 0000000000..425f17953d --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/invalidating-shared-state.html | |||
| @@ -0,0 +1,53 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.2.4.2. Invalidating Shared State</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="tips-and-tricks.html" title="3.2.4. Tips and Tricks"> | ||
| 9 | <link rel="prev" href="debugging.html" title="3.2.4.1. Debugging"> | ||
| 10 | <link rel="next" href="x32.html" title="3.3. x32"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.2.4.2. Invalidating Shared State"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="invalidating-shared-state"></a>3.2.4.2. Invalidating Shared State</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | The shared state code uses checksums and shared state | ||
| 17 | cache to avoid unnecessarily rebuilding tasks. | ||
| 18 | As with all schemes, this one has some drawbacks. | ||
| 19 | It is possible that you could make implicit changes that are not factored | ||
| 20 | into the checksum calculation, but do affect a task's output. | ||
| 21 | A good example is perhaps when a tool changes its output. | ||
| 22 | Let's say that the output of <code class="filename">rpmdeps</code> needed to change. | ||
| 23 | The result of the change should be that all the "package", "package_write_rpm", | ||
| 24 | and "package_deploy-rpm" shared state cache items would become invalid. | ||
| 25 | But, because this is a change that is external to the code and therefore implicit, | ||
| 26 | the associated shared state cache items do not become invalidated. | ||
| 27 | In this case, the build process would use the cached items rather than running the | ||
| 28 | task again. | ||
| 29 | Obviously, these types of implicit changes can cause problems. | ||
| 30 | </p> | ||
| 31 | <p> | ||
| 32 | To avoid these problems during the build, you need to understand the effects of any | ||
| 33 | change you make. | ||
| 34 | Note that any changes you make directly to a function automatically are factored into | ||
| 35 | the checksum calculation and thus, will invalidate the associated area of sstate cache. | ||
| 36 | You need to be aware of any implicit changes that are not obvious changes to the | ||
| 37 | code and could affect the output of a given task. | ||
| 38 | Once you are aware of such a change, you can take steps to invalidate the cache | ||
| 39 | and force the task to run. | ||
| 40 | The step to take is as simple as changing a function's comments in the source code. | ||
| 41 | For example, to invalidate package shared state files, change the comment statements | ||
| 42 | of <code class="filename">do_package</code> or the comments of one of the functions it calls. | ||
| 43 | The change is purely cosmetic, but it causes the checksum to be recalculated and | ||
| 44 | forces the task to be run again. | ||
| 45 | </p> | ||
| 46 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 47 | <h3 class="title">Note</h3> | ||
| 48 | For an example of a commit that makes a cosmetic change to invalidate | ||
| 49 | a shared state, see this | ||
| 50 | <a class="ulink" href="http://git.yoctoproject.org/cgit.cgi/poky/commit/meta/classes/package.bbclass?id=737f8bbb4f27b4837047cb9b4fbfe01dfde36d54" target="_self">commit</a>. | ||
| 51 | </div> | ||
| 52 | </div></body> | ||
| 53 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/license-flag-matching.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/license-flag-matching.html new file mode 100644 index 0000000000..8909689399 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/license-flag-matching.html | |||
| @@ -0,0 +1,91 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.4.2.1. License Flag Matching</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="enabling-commercially-licensed-recipes.html" title="3.4.2. Enabling Commercially Licensed Recipes"> | ||
| 9 | <link rel="prev" href="enabling-commercially-licensed-recipes.html" title="3.4.2. Enabling Commercially Licensed Recipes"> | ||
| 10 | <link rel="next" href="other-variables-related-to-commercial-licenses.html" title="3.4.2.2. Other Variables Related to Commercial Licenses"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.4.2.1. License Flag Matching"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="license-flag-matching"></a>3.4.2.1. License Flag Matching</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | The definition of 'matching' in reference to a | ||
| 17 | recipe's <code class="filename">LICENSE_FLAGS</code> setting is simple. | ||
| 18 | However, some things exist that you should know about in order to | ||
| 19 | correctly and effectively use it. | ||
| 20 | </p> | ||
| 21 | <p> | ||
| 22 | Before a flag | ||
| 23 | defined by a particular recipe is tested against the | ||
| 24 | contents of the <code class="filename">LICENSE_FLAGS_WHITELIST</code> variable, the | ||
| 25 | string <code class="filename">_${PN}</code> (with | ||
| 26 | <a class="link" href="ref-variables-glos.html#var-PN" title="PN"><code class="filename">PN</code></a> expanded of course) is | ||
| 27 | appended to the flag, thus automatically making each | ||
| 28 | <code class="filename">LICENSE_FLAGS</code> value recipe-specific. | ||
| 29 | That string is | ||
| 30 | then matched against the whitelist. | ||
| 31 | So if you specify <code class="filename">LICENSE_FLAGS = "commercial"</code> in recipe | ||
| 32 | "foo" for example, the string <code class="filename">"commercial_foo"</code> | ||
| 33 | would normally be what is specified in the whitelist in order for it to | ||
| 34 | match. | ||
| 35 | </p> | ||
| 36 | <p> | ||
| 37 | You can broaden the match by | ||
| 38 | putting any "_"-separated beginning subset of a | ||
| 39 | <code class="filename">LICENSE_FLAGS</code> flag in the whitelist, which will also | ||
| 40 | match. | ||
| 41 | For example, simply specifying "commercial" in | ||
| 42 | the whitelist would match any expanded <code class="filename">LICENSE_FLAGS</code> | ||
| 43 | definition starting with "commercial" such as | ||
| 44 | "commercial_foo" and "commercial_bar", which are the | ||
| 45 | strings that would be automatically generated for | ||
| 46 | hypothetical "foo" and "bar" recipes assuming those | ||
| 47 | recipes had simply specified the following: | ||
| 48 | </p> | ||
| 49 | <pre class="literallayout"> | ||
| 50 | LICENSE_FLAGS = "commercial" | ||
| 51 | </pre> | ||
| 52 | <p> | ||
| 53 | </p> | ||
| 54 | <p> | ||
| 55 | Broadening the match allows for a range of specificity for the items | ||
| 56 | in the whitelist, from more general to perfectly | ||
| 57 | specific. | ||
| 58 | So you have the choice of exhaustively | ||
| 59 | enumerating each license flag in the whitelist to | ||
| 60 | allow only those specific recipes into the image, or | ||
| 61 | of using a more general string to pick up anything | ||
| 62 | matching just the first component or components of the specified | ||
| 63 | string. | ||
| 64 | </p> | ||
| 65 | <p> | ||
| 66 | This scheme works even if the flag already | ||
| 67 | has <code class="filename">_${PN}</code> appended - the extra <code class="filename">_${PN}</code> is | ||
| 68 | redundant, but does not affect the outcome. | ||
| 69 | For example, a license flag of "commercial_1.2_foo" would | ||
| 70 | turn into "commercial_1.2_foo_foo" and would match | ||
| 71 | both the general "commercial" and the specific | ||
| 72 | "commercial_1.2_foo", as expected. | ||
| 73 | The flag would also match | ||
| 74 | "commercial_1.2_foo_foo" and "commercial_1.2", which | ||
| 75 | does not make much sense regarding use in the whitelist. | ||
| 76 | </p> | ||
| 77 | <p> | ||
| 78 | For a versioned string, you could instead specify | ||
| 79 | "commercial_foo_1.2", which would turn into | ||
| 80 | "commercial_foo_1.2_foo". | ||
| 81 | And, as expected, this flag allows | ||
| 82 | you to pick up this package along with | ||
| 83 | anything else "commercial" when you specify "commercial" | ||
| 84 | in the whitelist. | ||
| 85 | Or, the flag allows you to pick up this package along with anything "commercial_foo" | ||
| 86 | regardless of version when you use "commercial_foo" in the whitelist. | ||
| 87 | Finally, you can be completely specific about the package and version and specify | ||
| 88 | "commercial_foo_1.2" package and version. | ||
| 89 | </p> | ||
| 90 | </div></body> | ||
| 91 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/licenses.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/licenses.html new file mode 100644 index 0000000000..3af03e999f --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/licenses.html | |||
| @@ -0,0 +1,28 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.4. Licenses</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="technical-details.html" title="Chapter 3. Technical Details"> | ||
| 9 | <link rel="prev" href="using-x32-right-now.html" title="3.3.3. Using x32 Right Now"> | ||
| 10 | <link rel="next" href="usingpoky-configuring-LIC_FILES_CHKSUM.html" title="3.4.1. Tracking License Changes"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.4. Licenses"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="licenses"></a>3.4. Licenses</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | This section describes the mechanism by which the OpenEmbedded build system | ||
| 17 | tracks changes to licensing text. | ||
| 18 | The section also describes how to enable commercially licensed recipes, | ||
| 19 | which by default are disabled. | ||
| 20 | </p> | ||
| 21 | <p> | ||
| 22 | For information that can help you maintain compliance with various open | ||
| 23 | source licensing during the lifecycle of the product, see the | ||
| 24 | "<a class="link" href="../dev-manual/maintaining-open-source-license-compliance-during-your-products-lifecycle.html" target="_self">Maintaining Open Source License Compliance During Your Project's Lifecycle</a>" section | ||
| 25 | in the Yocto Project Development Manual. | ||
| 26 | </p> | ||
| 27 | </div></body> | ||
| 28 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/logging-with-bash.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/logging-with-bash.html new file mode 100644 index 0000000000..3cea310b1f --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/logging-with-bash.html | |||
| @@ -0,0 +1,47 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.3.7.2. Logging With Bash</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="recipe-logging-mechanisms.html" title="2.3.7. Recipe Logging Mechanisms"> | ||
| 9 | <link rel="prev" href="logging-with-python.html" title="2.3.7.1. Logging With Python"> | ||
| 10 | <link rel="next" href="usingpoky-debugging-others.html" title="2.3.8. Other Tips"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.3.7.2. Logging With Bash"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="logging-with-bash"></a>2.3.7.2. Logging With Bash</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | When creating recipes using Bash and inserting code that handles build | ||
| 17 | logs you have the same goals - informative with minimal console output. | ||
| 18 | The syntax you use for recipes written in Bash is similar to that of | ||
| 19 | recipes written in Python described in the previous section. | ||
| 20 | </p> | ||
| 21 | <p> | ||
| 22 | Following is an example written in Bash. | ||
| 23 | The code logs the progress of the <code class="filename">do_my_function</code> function. | ||
| 24 | </p> | ||
| 25 | <pre class="literallayout"> | ||
| 26 | do_my_function() { | ||
| 27 | bbdebug 2 "Running do_my_function" | ||
| 28 | if [ exceptional_condition ]; then | ||
| 29 | bbnote "Hit exceptional_condition" | ||
| 30 | fi | ||
| 31 | bbdebug 2 "Got to point xyz" | ||
| 32 | if [ warning_trigger ]; then | ||
| 33 | bbwarn "Detected warning_trigger, this might cause a problem later." | ||
| 34 | fi | ||
| 35 | if [ recoverable_error ]; then | ||
| 36 | bberror "Hit recoverable_error, correcting" | ||
| 37 | fi | ||
| 38 | if [ fatal_error ]; then | ||
| 39 | bbfatal "fatal_error detected" | ||
| 40 | fi | ||
| 41 | bbdebug 2 "Completed do_my_function" | ||
| 42 | } | ||
| 43 | </pre> | ||
| 44 | <p> | ||
| 45 | </p> | ||
| 46 | </div></body> | ||
| 47 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/logging-with-python.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/logging-with-python.html new file mode 100644 index 0000000000..e57b647148 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/logging-with-python.html | |||
| @@ -0,0 +1,45 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.3.7.1. Logging With Python</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="recipe-logging-mechanisms.html" title="2.3.7. Recipe Logging Mechanisms"> | ||
| 9 | <link rel="prev" href="recipe-logging-mechanisms.html" title="2.3.7. Recipe Logging Mechanisms"> | ||
| 10 | <link rel="next" href="logging-with-bash.html" title="2.3.7.2. Logging With Bash"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.3.7.1. Logging With Python"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="logging-with-python"></a>2.3.7.1. Logging With Python</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | When creating recipes using Python and inserting code that handles build logs | ||
| 17 | keep in mind the goal is to have informative logs while keeping the console as | ||
| 18 | "silent" as possible. | ||
| 19 | Also, if you want status messages in the log use the "debug" loglevel. | ||
| 20 | </p> | ||
| 21 | <p> | ||
| 22 | Following is an example written in Python. | ||
| 23 | The code handles logging for a function that determines the number of tasks | ||
| 24 | needed to be run: | ||
| 25 | </p> | ||
| 26 | <pre class="literallayout"> | ||
| 27 | python do_listtasks() { | ||
| 28 | bb.debug(2, "Starting to figure out the task list") | ||
| 29 | if noteworthy_condition: | ||
| 30 | bb.note("There are 47 tasks to run") | ||
| 31 | bb.debug(2, "Got to point xyz") | ||
| 32 | if warning_trigger: | ||
| 33 | bb.warn("Detected warning_trigger, this might be a problem later.") | ||
| 34 | if recoverable_error: | ||
| 35 | bb.error("Hit recoverable_error, you really need to fix this!") | ||
| 36 | if fatal_error: | ||
| 37 | bb.fatal("fatal_error detected, unable to print the task list") | ||
| 38 | bb.plain("The tasks present are abc") | ||
| 39 | bb.debug(2, "Finished figuring out the tasklist") | ||
| 40 | } | ||
| 41 | </pre> | ||
| 42 | <p> | ||
| 43 | </p> | ||
| 44 | </div></body> | ||
| 45 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/maintaining-build-output-quality.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/maintaining-build-output-quality.html new file mode 100644 index 0000000000..f0896e6c89 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/maintaining-build-output-quality.html | |||
| @@ -0,0 +1,53 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.4. Maintaining Build Output Quality</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky.html" title="Chapter 2. Using the Yocto Project"> | ||
| 9 | <link rel="prev" href="usingpoky-debugging-others.html" title="2.3.8. Other Tips"> | ||
| 10 | <link rel="next" href="enabling-and-disabling-build-history.html" title="2.4.1. Enabling and Disabling Build History"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.4. Maintaining Build Output Quality"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="maintaining-build-output-quality"></a>2.4. Maintaining Build Output Quality</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | A build's quality can be influenced by many things. | ||
| 17 | For example, if you upgrade a recipe to use a new version of an upstream software | ||
| 18 | package or you experiment with some new configuration options, subtle changes | ||
| 19 | can occur that you might not detect until later. | ||
| 20 | Consider the case where your recipe is using a newer version of an upstream package. | ||
| 21 | In this case, a new version of a piece of software might introduce an optional | ||
| 22 | dependency on another library, which is auto-detected. | ||
| 23 | If that library has already been built when the software is building, | ||
| 24 | then the software will link to the built library and that library will be pulled | ||
| 25 | into your image along with the new software even if you did not want the | ||
| 26 | library. | ||
| 27 | </p> | ||
| 28 | <p> | ||
| 29 | The <code class="filename">buildhistory</code> class exists to help you maintain | ||
| 30 | the quality of your build output. | ||
| 31 | You can use the class to highlight unexpected and possibly unwanted | ||
| 32 | changes in the build output. | ||
| 33 | When you enable build history it records information about the contents of | ||
| 34 | each package and image and then commits that information to a local Git | ||
| 35 | repository where you can examine the information. | ||
| 36 | </p> | ||
| 37 | <p> | ||
| 38 | The remainder of this section describes the following: | ||
| 39 | </p> | ||
| 40 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 41 | <li class="listitem"><p>How you can enable and disable | ||
| 42 | build history</p></li> | ||
| 43 | <li class="listitem"><p>How to understand what the build history contains | ||
| 44 | </p></li> | ||
| 45 | <li class="listitem"><p>How to limit the information used for build history | ||
| 46 | </p></li> | ||
| 47 | <li class="listitem"><p>How to examine the build history from both a | ||
| 48 | command-line and web interface</p></li> | ||
| 49 | </ul></div> | ||
| 50 | <p> | ||
| 51 | </p> | ||
| 52 | </div></body> | ||
| 53 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-bblayers-conf.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-bblayers-conf.html new file mode 100644 index 0000000000..50cd0caa4b --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-bblayers-conf.html | |||
| @@ -0,0 +1,27 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>4.1.1.2. bblayers.conf</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="1.3-local-configuration.html" title="4.1.1. Local Configuration"> | ||
| 9 | <link rel="prev" href="migration-1.3-sstate-mirrors.html" title="4.1.1.1. SSTATE_MIRRORS"> | ||
| 10 | <link rel="next" href="1.3-recipes.html" title="4.1.2. Recipes"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="4.1.1.2. bblayers.conf"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="migration-1.3-bblayers-conf"></a>4.1.1.2. bblayers.conf</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | The <code class="filename">meta-yocto</code> layer has been split into | ||
| 17 | two parts: <code class="filename">meta-yocto</code> and | ||
| 18 | <code class="filename">meta-yocto-bsp</code>, corresponding to the | ||
| 19 | Poky reference distro configuration and the reference | ||
| 20 | hardware Board Support Packages (BSPs), respectively. | ||
| 21 | When running BitBake or Hob for the first time after upgrading, | ||
| 22 | your <code class="filename">conf/bblayers.conf</code> file will be | ||
| 23 | updated to handle this change and you will be asked to | ||
| 24 | re-run/restart for the changes to take effect. | ||
| 25 | </p> | ||
| 26 | </div></body> | ||
| 27 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-image-features.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-image-features.html new file mode 100644 index 0000000000..48ef697506 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-image-features.html | |||
| @@ -0,0 +1,26 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>4.1.2.5. IMAGE_FEATURES</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="1.3-recipes.html" title="4.1.2. Recipes"> | ||
| 9 | <link rel="prev" href="migration-1.3-task-recipes.html" title="4.1.2.4. Task Recipes"> | ||
| 10 | <link rel="next" href="migration-1.3-removed-recipes.html" title="4.1.2.6. Removed Recipes"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="4.1.2.5. IMAGE_FEATURES"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="migration-1.3-image-features"></a>4.1.2.5. IMAGE_FEATURES</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | Image recipes that previously included "apps-console-core" | ||
| 17 | in <a class="link" href="ref-variables-glos.html#var-IMAGE_FEATURES" title="IMAGE_FEATURES"><code class="filename">IMAGE_FEATURES</code></a> | ||
| 18 | should now include "splash" instead to enable the boot-up | ||
| 19 | splash screen. | ||
| 20 | Retaining "apps-console-core" will still include the splash | ||
| 21 | screen generates a warning. | ||
| 22 | The "apps-x11-core" and "apps-x11-games" | ||
| 23 | <code class="filename">IMAGE_FEATURES</code> features have been removed. | ||
| 24 | </p> | ||
| 25 | </div></body> | ||
| 26 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-nativesdk.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-nativesdk.html new file mode 100644 index 0000000000..b20f6101e4 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-nativesdk.html | |||
| @@ -0,0 +1,25 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>4.1.2.3. nativesdk</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="1.3-recipes.html" title="4.1.2. Recipes"> | ||
| 9 | <link rel="prev" href="migration-1.3-proto=-in-src-uri.html" title="4.1.2.2. proto= in SRC_URI"> | ||
| 10 | <link rel="next" href="migration-1.3-task-recipes.html" title="4.1.2.4. Task Recipes"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="4.1.2.3. nativesdk"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="migration-1.3-nativesdk"></a>4.1.2.3. nativesdk</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | The suffix <code class="filename">nativesdk</code> is now implemented | ||
| 17 | as a prefix, which simplifies a lot of the packaging code for | ||
| 18 | <code class="filename">nativesdk</code> recipes. | ||
| 19 | All custom <code class="filename">nativesdk</code> recipes and any | ||
| 20 | references need to be updated to use | ||
| 21 | <code class="filename">nativesdk-*</code> instead of | ||
| 22 | <code class="filename">*-nativesdk</code>. | ||
| 23 | </p> | ||
| 24 | </div></body> | ||
| 25 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-proto=-in-src-uri.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-proto=-in-src-uri.html new file mode 100644 index 0000000000..85702b8479 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-proto=-in-src-uri.html | |||
| @@ -0,0 +1,32 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>4.1.2.2. proto= in SRC_URI</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="1.3-recipes.html" title="4.1.2. Recipes"> | ||
| 9 | <link rel="prev" href="migration-1.3-python-function-whitespace.html" title="4.1.2.1. Python Function Whitespace"> | ||
| 10 | <link rel="next" href="migration-1.3-nativesdk.html" title="4.1.2.3. nativesdk"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="4.1.2.2. proto= in SRC_URI"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="migration-1.3-proto=-in-src-uri"></a>4.1.2.2. proto= in SRC_URI</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | Any use of <code class="filename">proto=</code> in | ||
| 17 | <a class="link" href="ref-variables-glos.html#var-SRC_URI" title="SRC_URI"><code class="filename">SRC_URI</code></a> | ||
| 18 | needs to be changed to <code class="filename">protocol=</code>. | ||
| 19 | In particular, this applies to the following URIs: | ||
| 20 | </p> | ||
| 21 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 22 | <li class="listitem"><p><code class="filename">svn://</code></p></li> | ||
| 23 | <li class="listitem"><p><code class="filename">bzr://</code></p></li> | ||
| 24 | <li class="listitem"><p><code class="filename">hg://</code></p></li> | ||
| 25 | <li class="listitem"><p><code class="filename">osc://</code></p></li> | ||
| 26 | </ul></div> | ||
| 27 | <p> | ||
| 28 | Other URIs were already using <code class="filename">protocol=</code>. | ||
| 29 | This change improves consistency. | ||
| 30 | </p> | ||
| 31 | </div></body> | ||
| 32 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-python-function-whitespace.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-python-function-whitespace.html new file mode 100644 index 0000000000..7b7405984c --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-python-function-whitespace.html | |||
| @@ -0,0 +1,29 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>4.1.2.1. Python Function Whitespace</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="1.3-recipes.html" title="4.1.2. Recipes"> | ||
| 9 | <link rel="prev" href="1.3-recipes.html" title="4.1.2. Recipes"> | ||
| 10 | <link rel="next" href="migration-1.3-proto=-in-src-uri.html" title="4.1.2.2. proto= in SRC_URI"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="4.1.2.1. Python Function Whitespace"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="migration-1.3-python-function-whitespace"></a>4.1.2.1. Python Function Whitespace</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | All Python functions must now use four spaces for indentation. | ||
| 17 | Previously, an inconsistent mix of spaces and tabs existed, | ||
| 18 | which made extending these functions using | ||
| 19 | <code class="filename">_append</code> or <code class="filename">_prepend</code> | ||
| 20 | complicated given that Python treats whitespace as | ||
| 21 | syntactically significant. | ||
| 22 | If you are defining or extending any Python functions (e.g. | ||
| 23 | <code class="filename">populate_packages</code>, <code class="filename">do_unpack</code>, | ||
| 24 | <code class="filename">do_patch</code> and so forth) in custom recipes | ||
| 25 | or classes, you need to ensure you are using consistent | ||
| 26 | four-space indentation. | ||
| 27 | </p> | ||
| 28 | </div></body> | ||
| 29 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-removed-recipes.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-removed-recipes.html new file mode 100644 index 0000000000..ff8a213ccf --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-removed-recipes.html | |||
| @@ -0,0 +1,64 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>4.1.2.6. Removed Recipes</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="1.3-recipes.html" title="4.1.2. Recipes"> | ||
| 9 | <link rel="prev" href="migration-1.3-image-features.html" title="4.1.2.5. IMAGE_FEATURES"> | ||
| 10 | <link rel="next" href="ref-structure.html" title="Chapter 5. Source Directory Structure"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="4.1.2.6. Removed Recipes"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="migration-1.3-removed-recipes"></a>4.1.2.6. Removed Recipes</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | The following recipes have been removed. | ||
| 17 | For most of them, it is unlikely that you would have any | ||
| 18 | references to them in your own metadata. | ||
| 19 | However, you should check your metadata against this list to be sure: | ||
| 20 | </p> | ||
| 21 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 22 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">libx11-trim</code></em></span>: | ||
| 23 | Replaced by <code class="filename">libx11</code>, which has a negligible | ||
| 24 | size difference with modern Xorg.</p></li> | ||
| 25 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">xserver-xorg-lite</code></em></span>: | ||
| 26 | Use <code class="filename">xserver-xorg</code>, which has a negligible | ||
| 27 | size difference when DRI and GLX modules are not installed.</p></li> | ||
| 28 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">xserver-kdrive</code></em></span>: | ||
| 29 | Effectively unmaintained for many years.</p></li> | ||
| 30 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">mesa-xlib</code></em></span>: | ||
| 31 | No longer serves any purpose.</p></li> | ||
| 32 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">galago</code></em></span>: | ||
| 33 | Replaced by telepathy.</p></li> | ||
| 34 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">gail</code></em></span>: | ||
| 35 | Functionality was integrated into GTK+ 2.13.</p></li> | ||
| 36 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">eggdbus</code></em></span>: | ||
| 37 | No longer needed.</p></li> | ||
| 38 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">gcc-*-intermediate</code></em></span>: | ||
| 39 | The build has been restructured to avoid the need for | ||
| 40 | this step.</p></li> | ||
| 41 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">libgsmd</code></em></span>: | ||
| 42 | Unmaintained for many years. | ||
| 43 | Functionality now provided by | ||
| 44 | <code class="filename">ofono</code> instead.</p></li> | ||
| 45 | <li class="listitem"><p><span class="emphasis"><em>contacts, dates, tasks, eds-tools</em></span>: | ||
| 46 | Largely unmaintained PIM application suite. | ||
| 47 | It has been moved to <code class="filename">meta-gnome</code> | ||
| 48 | in <code class="filename">meta-openembedded</code>.</p></li> | ||
| 49 | </ul></div> | ||
| 50 | <p> | ||
| 51 | In addition to the previously listed changes, the | ||
| 52 | <code class="filename">meta-demoapps</code> directory has also been removed | ||
| 53 | because the recipes in it were not being maintained and many | ||
| 54 | had become obsolete or broken. | ||
| 55 | Additionally, these recipes were not parsed in the default configuration. | ||
| 56 | Many of these recipes are already provided in an updated and | ||
| 57 | maintained form within OpenEmbedded community layers such as | ||
| 58 | <code class="filename">meta-oe</code> and <code class="filename">meta-gnome</code>. | ||
| 59 | For the remainder, you can now find them in the | ||
| 60 | <code class="filename">meta-extras</code> repository, which is in the | ||
| 61 | Yocto Project source repositories. | ||
| 62 | </p> | ||
| 63 | </div></body> | ||
| 64 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-sstate-mirrors.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-sstate-mirrors.html new file mode 100644 index 0000000000..b2f790649b --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-sstate-mirrors.html | |||
| @@ -0,0 +1,36 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>4.1.1.1. SSTATE_MIRRORS</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="1.3-local-configuration.html" title="4.1.1. Local Configuration"> | ||
| 9 | <link rel="prev" href="1.3-local-configuration.html" title="4.1.1. Local Configuration"> | ||
| 10 | <link rel="next" href="migration-1.3-bblayers-conf.html" title="4.1.1.2. bblayers.conf"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="4.1.1.1. SSTATE_MIRRORS"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="migration-1.3-sstate-mirrors"></a>4.1.1.1. SSTATE_MIRRORS</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | The shared state cache (sstate-cache) as pointed to by | ||
| 17 | <a class="link" href="ref-variables-glos.html#var-SSTATE_DIR" title="SSTATE_DIR"><code class="filename">SSTATE_DIR</code></a> by default | ||
| 18 | now has two-character subdirectories to prevent there being an issue with too | ||
| 19 | many files in the same directory. | ||
| 20 | Also, native sstate-cache packages will go into a subdirectory named using | ||
| 21 | the distro ID string. | ||
| 22 | If you copy the newly structured sstate-cache to a mirror location | ||
| 23 | (either local or remote) and then point to it in | ||
| 24 | <a class="link" href="ref-variables-glos.html#var-SSTATE_MIRRORS" title="SSTATE_MIRRORS"><code class="filename">SSTATE_MIRRORS</code></a>, | ||
| 25 | you need to append "PATH" to the end of the mirror URL so that | ||
| 26 | the path used by BitBake before the mirror substitution is | ||
| 27 | appended to the path used to access the mirror. | ||
| 28 | Here is an example: | ||
| 29 | </p> | ||
| 30 | <pre class="literallayout"> | ||
| 31 | SSTATE_MIRRORS = "file://.* http://someserver.tld/share/sstate/PATH" | ||
| 32 | </pre> | ||
| 33 | <p> | ||
| 34 | </p> | ||
| 35 | </div></body> | ||
| 36 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-task-recipes.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-task-recipes.html new file mode 100644 index 0000000000..1d93d893b1 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration-1.3-task-recipes.html | |||
| @@ -0,0 +1,39 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>4.1.2.4. Task Recipes</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="1.3-recipes.html" title="4.1.2. Recipes"> | ||
| 9 | <link rel="prev" href="migration-1.3-nativesdk.html" title="4.1.2.3. nativesdk"> | ||
| 10 | <link rel="next" href="migration-1.3-image-features.html" title="4.1.2.5. IMAGE_FEATURES"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="4.1.2.4. Task Recipes"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="migration-1.3-task-recipes"></a>4.1.2.4. Task Recipes</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | "Task" recipes are now known as "Package groups" and have | ||
| 17 | been renamed from <code class="filename">task-*.bb</code> to | ||
| 18 | <code class="filename">packagegroup-*.bb</code>. | ||
| 19 | Existing references to the previous <code class="filename">task-*</code> | ||
| 20 | names should work in most cases as there is an automatic | ||
| 21 | upgrade path for most packages. | ||
| 22 | However, you should update references in your own recipes and | ||
| 23 | configurations as they could be removed in future releases. | ||
| 24 | You should also rename any custom <code class="filename">task-*</code> | ||
| 25 | recipes to <code class="filename">packagegroup-*</code>, and change | ||
| 26 | them to inherit <code class="filename">packagegroup</code> instead of | ||
| 27 | <code class="filename">task</code>, as well as taking the opportunity | ||
| 28 | to remove anything now handled by | ||
| 29 | <code class="filename">packagegroup.bbclass</code>, such as providing | ||
| 30 | <code class="filename">-dev</code> and <code class="filename">-dbg</code> | ||
| 31 | packages, setting | ||
| 32 | <a class="link" href="ref-variables-glos.html#var-LIC_FILES_CHKSUM" title="LIC_FILES_CHKSUM"><code class="filename">LIC_FILES_CHKSUM</code></a>, | ||
| 33 | and so forth. | ||
| 34 | See the | ||
| 35 | "<a class="link" href="ref-classes-packagegroup.html" title="7.12. Package Groups - packagegroup.bbclass">Package Groups - packagegroup.bbclass</a>" | ||
| 36 | section for further details. | ||
| 37 | </p> | ||
| 38 | </div></body> | ||
| 39 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/migration.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration.html new file mode 100644 index 0000000000..f7bb138de9 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/migration.html | |||
| @@ -0,0 +1,31 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 4. Migrating to a Newer Yocto Project Release</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="other-variables-related-to-commercial-licenses.html" title="3.4.2.2. Other Variables Related to Commercial Licenses"> | ||
| 10 | <link rel="next" href="moving-to-the-yocto-project-1.3-release.html" title="4.1. Moving to the Yocto Project 1.3 Release"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 4. Migrating to a Newer Yocto Project Release"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="migration"></a>Chapter 4. Migrating to a Newer Yocto Project Release</h2></div></div></div> | ||
| 15 | <div class="toc"> | ||
| 16 | <p><b>Table of Contents</b></p> | ||
| 17 | <dl> | ||
| 18 | <dt><span class="section"><a href="moving-to-the-yocto-project-1.3-release.html">4.1. Moving to the Yocto Project 1.3 Release</a></span></dt> | ||
| 19 | <dd><dl> | ||
| 20 | <dt><span class="section"><a href="1.3-local-configuration.html">4.1.1. Local Configuration</a></span></dt> | ||
| 21 | <dt><span class="section"><a href="1.3-recipes.html">4.1.2. Recipes</a></span></dt> | ||
| 22 | </dl></dd> | ||
| 23 | </dl> | ||
| 24 | </div> | ||
| 25 | <p> | ||
| 26 | This chapter provides information you can use to migrate work to a | ||
| 27 | newer Yocto Project release. You can find the same information in the | ||
| 28 | release notes for a given release. | ||
| 29 | </p> | ||
| 30 | </div></body> | ||
| 31 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/moving-to-the-yocto-project-1.3-release.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/moving-to-the-yocto-project-1.3-release.html new file mode 100644 index 0000000000..8afa731200 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/moving-to-the-yocto-project-1.3-release.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>4.1. Moving to the Yocto Project 1.3 Release</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="migration.html" title="Chapter 4. Migrating to a Newer Yocto Project Release"> | ||
| 9 | <link rel="prev" href="migration.html" title="Chapter 4. Migrating to a Newer Yocto Project Release"> | ||
| 10 | <link rel="next" href="1.3-local-configuration.html" title="4.1.1. Local Configuration"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="4.1. Moving to the Yocto Project 1.3 Release"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="moving-to-the-yocto-project-1.3-release"></a>4.1. Moving to the Yocto Project 1.3 Release</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | This section provides migration information for moving to the | ||
| 17 | Yocto Project 1.3 Release. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/opensuse-packages.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/opensuse-packages.html new file mode 100644 index 0000000000..16a1860596 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/opensuse-packages.html | |||
| @@ -0,0 +1,60 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>1.3.2.3. OpenSUSE Packages</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="required-packages-for-the-host-development-system.html" title="1.3.2. Required Packages for the Host Development System"> | ||
| 9 | <link rel="prev" href="fedora-packages.html" title="1.3.2.2. Fedora Packages"> | ||
| 10 | <link rel="next" href="centos-packages.html" title="1.3.2.4. CentOS Packages"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="1.3.2.3. OpenSUSE Packages"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="opensuse-packages"></a>1.3.2.3. OpenSUSE Packages</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | The following list shows the required packages by function | ||
| 17 | given a supported OpenSUSE Linux distribution: | ||
| 18 | </p> | ||
| 19 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 20 | <li class="listitem"> | ||
| 21 | <p><span class="emphasis"><em>Essentials:</em></span> | ||
| 22 | Packages needed to build an image for a headless | ||
| 23 | system: | ||
| 24 | </p> | ||
| 25 | <pre class="literallayout"> | ||
| 26 | $ sudo zypper install python gcc gcc-c++ git chrpath make wget python-xml \ | ||
| 27 | diffstat texinfo python-curses | ||
| 28 | </pre> | ||
| 29 | </li> | ||
| 30 | <li class="listitem"> | ||
| 31 | <p><span class="emphasis"><em>Graphical Extras:</em></span> | ||
| 32 | Packages recommended if the host system has graphics support: | ||
| 33 | </p> | ||
| 34 | <pre class="literallayout"> | ||
| 35 | $ sudo zypper install libSDL-devel xterm | ||
| 36 | </pre> | ||
| 37 | </li> | ||
| 38 | <li class="listitem"> | ||
| 39 | <p><span class="emphasis"><em>Documentation:</em></span> | ||
| 40 | Packages needed if you are going to build out the | ||
| 41 | Yocto Project documentation manuals: | ||
| 42 | </p> | ||
| 43 | <pre class="literallayout"> | ||
| 44 | $ sudo zypper install make fop xsltproc | ||
| 45 | </pre> | ||
| 46 | </li> | ||
| 47 | <li class="listitem"> | ||
| 48 | <p><span class="emphasis"><em>ADT Installer Extras:</em></span> | ||
| 49 | Packages needed if you are going to be using the | ||
| 50 | <a class="link" href="../adt-manual/using-the-adt-installer.html" target="_self">Application Development Toolkit (ADT) Installer</a>: | ||
| 51 | </p> | ||
| 52 | <pre class="literallayout"> | ||
| 53 | $ sudo zypper install autoconf automake libtool glib2-devel | ||
| 54 | </pre> | ||
| 55 | </li> | ||
| 56 | </ul></div> | ||
| 57 | <p> | ||
| 58 | </p> | ||
| 59 | </div></body> | ||
| 60 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/other-variables-related-to-commercial-licenses.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/other-variables-related-to-commercial-licenses.html new file mode 100644 index 0000000000..31b096ec73 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/other-variables-related-to-commercial-licenses.html | |||
| @@ -0,0 +1,60 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.4.2.2. Other Variables Related to Commercial Licenses</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="enabling-commercially-licensed-recipes.html" title="3.4.2. Enabling Commercially Licensed Recipes"> | ||
| 9 | <link rel="prev" href="license-flag-matching.html" title="3.4.2.1. License Flag Matching"> | ||
| 10 | <link rel="next" href="migration.html" title="Chapter 4. Migrating to a Newer Yocto Project Release"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.4.2.2. Other Variables Related to Commercial Licenses"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="other-variables-related-to-commercial-licenses"></a>3.4.2.2. Other Variables Related to Commercial Licenses</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | Other helpful variables related to commercial | ||
| 17 | license handling exist and are defined in the | ||
| 18 | <code class="filename">$HOME/poky/meta/conf/distro/include/default-distrovars.inc</code> file: | ||
| 19 | </p> | ||
| 20 | <pre class="literallayout"> | ||
| 21 | COMMERCIAL_AUDIO_PLUGINS ?= "" | ||
| 22 | COMMERCIAL_VIDEO_PLUGINS ?= "" | ||
| 23 | COMMERCIAL_QT = "" | ||
| 24 | </pre> | ||
| 25 | <p> | ||
| 26 | If you want to enable these components, you can do so by making sure you have | ||
| 27 | the following statements in your <code class="filename">local.conf</code> configuration file: | ||
| 28 | </p> | ||
| 29 | <pre class="literallayout"> | ||
| 30 | COMMERCIAL_AUDIO_PLUGINS = "gst-plugins-ugly-mad \ | ||
| 31 | gst-plugins-ugly-mpegaudioparse" | ||
| 32 | COMMERCIAL_VIDEO_PLUGINS = "gst-plugins-ugly-mpeg2dec \ | ||
| 33 | gst-plugins-ugly-mpegstream gst-plugins-bad-mpegvideoparse" | ||
| 34 | COMMERCIAL_QT ?= "qmmp" | ||
| 35 | LICENSE_FLAGS_WHITELIST = "commercial_gst-plugins-ugly commercial_gst-plugins-bad commercial_qmmp" | ||
| 36 | </pre> | ||
| 37 | <p> | ||
| 38 | Of course, you could also create a matching whitelist | ||
| 39 | for those components using the more general "commercial" | ||
| 40 | in the whitelist, but that would also enable all the | ||
| 41 | other packages with <code class="filename">LICENSE_FLAGS</code> containing | ||
| 42 | "commercial", which you may or may not want: | ||
| 43 | </p> | ||
| 44 | <pre class="literallayout"> | ||
| 45 | LICENSE_FLAGS_WHITELIST = "commercial" | ||
| 46 | </pre> | ||
| 47 | <p> | ||
| 48 | </p> | ||
| 49 | <p> | ||
| 50 | Specifying audio and video plug-ins as part of the | ||
| 51 | <code class="filename">COMMERCIAL_AUDIO_PLUGINS</code> and | ||
| 52 | <code class="filename">COMMERCIAL_VIDEO_PLUGINS</code> statements | ||
| 53 | or commercial qt components as part of | ||
| 54 | the <code class="filename">COMMERCIAL_QT</code> statement (along | ||
| 55 | with the enabling <code class="filename">LICENSE_FLAGS_WHITELIST</code>) includes the | ||
| 56 | plug-ins or components into built images, thus adding | ||
| 57 | support for media formats or components. | ||
| 58 | </p> | ||
| 59 | </div></body> | ||
| 60 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/overall-architecture.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/overall-architecture.html new file mode 100644 index 0000000000..89a6979603 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/overall-architecture.html | |||
| @@ -0,0 +1,31 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.2.1. Overall Architecture</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="shared-state-cache.html" title="3.2. Shared State Cache"> | ||
| 9 | <link rel="prev" href="shared-state-cache.html" title="3.2. Shared State Cache"> | ||
| 10 | <link rel="next" href="checksums.html" title="3.2.2. Checksums (Signatures)"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.2.1. Overall Architecture"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="overall-architecture"></a>3.2.1. Overall Architecture</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | When determining what parts of the system need to be built, BitBake | ||
| 17 | uses a per-task basis and does not use a per-recipe basis. | ||
| 18 | You might wonder why using a per-task basis is preferred over a per-recipe basis. | ||
| 19 | To help explain, consider having the IPK packaging backend enabled and then switching to DEB. | ||
| 20 | In this case, <code class="filename">do_install</code> and <code class="filename">do_package</code> | ||
| 21 | output are still valid. | ||
| 22 | However, with a per-recipe approach, the build would not include the | ||
| 23 | <code class="filename">.deb</code> files. | ||
| 24 | Consequently, you would have to invalidate the whole build and rerun it. | ||
| 25 | Rerunning everything is not the best situation. | ||
| 26 | Also in this case, the core must be "taught" much about specific tasks. | ||
| 27 | This methodology does not scale well and does not allow users to easily add new tasks | ||
| 28 | in layers or as external recipes without touching the packaged-staging core. | ||
| 29 | </p> | ||
| 30 | </div></body> | ||
| 31 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/recipe-logging-mechanisms.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/recipe-logging-mechanisms.html new file mode 100644 index 0000000000..add1017473 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/recipe-logging-mechanisms.html | |||
| @@ -0,0 +1,41 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.3.7. Recipe Logging Mechanisms</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-debugging.html" title="2.3. Debugging Build Failures"> | ||
| 9 | <link rel="prev" href="usingpoky-debugging-variables.html" title="2.3.6. Variables"> | ||
| 10 | <link rel="next" href="logging-with-python.html" title="2.3.7.1. Logging With Python"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.3.7. Recipe Logging Mechanisms"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="recipe-logging-mechanisms"></a>2.3.7. Recipe Logging Mechanisms</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | Best practices exist while writing recipes that both log build progress and | ||
| 17 | act on build conditions such as warnings and errors. | ||
| 18 | Both Python and Bash language bindings exist for the logging mechanism: | ||
| 19 | </p> | ||
| 20 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 21 | <li class="listitem"><p><span class="emphasis"><em>Python:</em></span> For Python functions, BitBake | ||
| 22 | supports several loglevels: <code class="filename">bb.fatal</code>, | ||
| 23 | <code class="filename">bb.error</code>, <code class="filename">bb.warn</code>, | ||
| 24 | <code class="filename">bb.note</code>, <code class="filename">bb.plain</code>, | ||
| 25 | and <code class="filename">bb.debug</code>.</p></li> | ||
| 26 | <li class="listitem"><p><span class="emphasis"><em>Bash:</em></span> For Bash functions, the same set | ||
| 27 | of loglevels exist and are accessed with a similar syntax: | ||
| 28 | <code class="filename">bbfatal</code>, <code class="filename">bberror</code>, | ||
| 29 | <code class="filename">bbwarn</code>, <code class="filename">bbnote</code>, | ||
| 30 | <code class="filename">bbplain</code>, and <code class="filename">bbdebug</code>.</p></li> | ||
| 31 | </ul></div> | ||
| 32 | <p> | ||
| 33 | </p> | ||
| 34 | <p> | ||
| 35 | For guidance on how logging is handled in both Python and Bash recipes, see the | ||
| 36 | <code class="filename">logging.bbclass</code> file in the | ||
| 37 | <code class="filename">meta/classes</code> folder of the | ||
| 38 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 39 | </p> | ||
| 40 | </div></body> | ||
| 41 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-commandline.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-commandline.html new file mode 100644 index 0000000000..34c8394c3f --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-commandline.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>6.6. BitBake Command Line</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-bitbake.html" title="Chapter 6. BitBake"> | ||
| 9 | <link rel="prev" href="ref-bitbake-runtask.html" title="6.5. Running a Task"> | ||
| 10 | <link rel="next" href="ref-bitbake-fetchers.html" title="6.7. Fetchers"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="6.6. BitBake Command Line"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-bitbake-commandline"></a>6.6. BitBake Command Line</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | Following is the BitBake help output: | ||
| 17 | </p> | ||
| 18 | <pre class="screen"> | ||
| 19 | $ bitbake --help | ||
| 20 | Usage: bitbake [options] [package ...] | ||
| 21 | |||
| 22 | Executes the specified task (default is 'build') for a given set of BitBake files. | ||
| 23 | It expects that BBFILES is defined, which is a space separated list of files to | ||
| 24 | be executed. BBFILES does support wildcards. | ||
| 25 | Default BBFILES are the .bb files in the current directory. | ||
| 26 | |||
| 27 | Options: | ||
| 28 | --version show program's version number and exit | ||
| 29 | -h, --help show this help message and exit | ||
| 30 | -b BUILDFILE, --buildfile=BUILDFILE | ||
| 31 | execute the task against this .bb file, rather than a | ||
| 32 | package from BBFILES. Does not handle any | ||
| 33 | dependencies. | ||
| 34 | -k, --continue continue as much as possible after an error. While the | ||
| 35 | target that failed, and those that depend on it, | ||
| 36 | cannot be remade, the other dependencies of these | ||
| 37 | targets can be processed all the same. | ||
| 38 | -a, --tryaltconfigs continue with builds by trying to use alternative | ||
| 39 | providers where possible. | ||
| 40 | -f, --force force run of specified cmd, regardless of stamp status | ||
| 41 | -c CMD, --cmd=CMD Specify task to execute. Note that this only executes | ||
| 42 | the specified task for the providee and the packages | ||
| 43 | it depends on, i.e. 'compile' does not implicitly call | ||
| 44 | stage for the dependencies (IOW: use only if you know | ||
| 45 | what you are doing). Depending on the base.bbclass a | ||
| 46 | listtasks tasks is defined and will show available | ||
| 47 | tasks | ||
| 48 | -r PREFILE, --read=PREFILE | ||
| 49 | read the specified file before bitbake.conf | ||
| 50 | -R POSTFILE, --postread=POSTFILE | ||
| 51 | read the specified file after bitbake.conf | ||
| 52 | -v, --verbose output more chit-chat to the terminal | ||
| 53 | -D, --debug Increase the debug level. You can specify this more | ||
| 54 | than once. | ||
| 55 | -n, --dry-run don't execute, just go through the motions | ||
| 56 | -S, --dump-signatures | ||
| 57 | don't execute, just dump out the signature | ||
| 58 | construction information | ||
| 59 | -p, --parse-only quit after parsing the BB files (developers only) | ||
| 60 | -s, --show-versions show current and preferred versions of all packages | ||
| 61 | -e, --environment show the global or per-package environment (this is | ||
| 62 | what used to be bbread) | ||
| 63 | -g, --graphviz emit the dependency trees of the specified packages in | ||
| 64 | the dot syntax | ||
| 65 | -I EXTRA_ASSUME_PROVIDED, --ignore-deps=EXTRA_ASSUME_PROVIDED | ||
| 66 | Assume these dependencies don't exist and are already | ||
| 67 | provided (equivalent to ASSUME_PROVIDED). Useful to | ||
| 68 | make dependency graphs more appealing | ||
| 69 | -l DEBUG_DOMAINS, --log-domains=DEBUG_DOMAINS | ||
| 70 | Show debug logging for the specified logging domains | ||
| 71 | -P, --profile profile the command and print a report | ||
| 72 | -u UI, --ui=UI userinterface to use | ||
| 73 | -t SERVERTYPE, --servertype=SERVERTYPE | ||
| 74 | Choose which server to use, none, process or xmlrpc | ||
| 75 | --revisions-changed Set the exit code depending on whether upstream | ||
| 76 | floating revisions have changed or not | ||
| 77 | </pre> | ||
| 78 | </div></body> | ||
| 79 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-dependencies.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-dependencies.html new file mode 100644 index 0000000000..e7106ca6d2 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-dependencies.html | |||
| @@ -0,0 +1,34 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>6.3. Dependencies</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-bitbake.html" title="Chapter 6. BitBake"> | ||
| 9 | <link rel="prev" href="ref-bitbake-providers.html" title="6.2. Preferences and Providers"> | ||
| 10 | <link rel="next" href="ref-bitbake-tasklist.html" title="6.4. The Task List"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="6.3. Dependencies"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-bitbake-dependencies"></a>6.3. Dependencies</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | Each target BitBake builds consists of multiple tasks such as | ||
| 17 | <code class="filename">fetch</code>, <code class="filename">unpack</code>, | ||
| 18 | <code class="filename">patch</code>, <code class="filename">configure</code>, | ||
| 19 | and <code class="filename">compile</code>. | ||
| 20 | For best performance on multi-core systems, BitBake considers each task as an independent | ||
| 21 | entity with its own set of dependencies. | ||
| 22 | </p> | ||
| 23 | <p> | ||
| 24 | Dependencies are defined through several variables. | ||
| 25 | You can find information about variables BitBake uses in the BitBake documentation, | ||
| 26 | which is found in the <code class="filename">bitbake/doc/manual</code> directory within the | ||
| 27 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 28 | At a basic level, it is sufficient to know that BitBake uses the | ||
| 29 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-DEPENDS" title="DEPENDS">DEPENDS</a></code> and | ||
| 30 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-RDEPENDS" title="RDEPENDS">RDEPENDS</a></code> variables when | ||
| 31 | calculating dependencies. | ||
| 32 | </p> | ||
| 33 | </div></body> | ||
| 34 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-fetchers.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-fetchers.html new file mode 100644 index 0000000000..e1bda8b995 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-fetchers.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>6.7. Fetchers</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-bitbake.html" title="Chapter 6. BitBake"> | ||
| 9 | <link rel="prev" href="ref-bitbake-commandline.html" title="6.6. BitBake Command Line"> | ||
| 10 | <link rel="next" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="6.7. Fetchers"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-bitbake-fetchers"></a>6.7. Fetchers</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | BitBake also contains a set of "fetcher" modules that allow | ||
| 17 | retrieval of source code from various types of sources. | ||
| 18 | For example, BitBake can get source code from a disk with the metadata, from websites, | ||
| 19 | from remote shell accounts or from Source Code Management (SCM) systems | ||
| 20 | like <code class="filename">cvs/subversion/git</code>. | ||
| 21 | </p> | ||
| 22 | <p> | ||
| 23 | Fetchers are usually triggered by entries in | ||
| 24 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-SRC_URI" title="SRC_URI">SRC_URI</a></code>. | ||
| 25 | You can find information about the options and formats of entries for specific | ||
| 26 | fetchers in the BitBake manual located in the | ||
| 27 | <code class="filename">bitbake/doc/manual</code> directory of the | ||
| 28 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 29 | </p> | ||
| 30 | <p> | ||
| 31 | One useful feature for certain Source Code Manager (SCM) fetchers is the ability to | ||
| 32 | "auto-update" when the upstream SCM changes version. | ||
| 33 | Since this ability requires certain functionality from the SCM, not all | ||
| 34 | systems support it. | ||
| 35 | Currently Subversion, Bazaar and to a limited extent, Git support the ability to "auto-update". | ||
| 36 | This feature works using the <code class="filename"><a class="link" href="ref-variables-glos.html#var-SRCREV" title="SRCREV">SRCREV</a></code> | ||
| 37 | variable. | ||
| 38 | See the | ||
| 39 | "<a class="link" href="../dev-manual/platdev-appdev-srcrev.html" target="_self">Using an External SCM</a>" section | ||
| 40 | in the Yocto Project Development Manual for more information. | ||
| 41 | </p> | ||
| 42 | </div></body> | ||
| 43 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-parsing.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-parsing.html new file mode 100644 index 0000000000..c86621eb38 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-parsing.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>6.1. Parsing</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-bitbake.html" title="Chapter 6. BitBake"> | ||
| 9 | <link rel="prev" href="ref-bitbake.html" title="Chapter 6. BitBake"> | ||
| 10 | <link rel="next" href="ref-bitbake-providers.html" title="6.2. Preferences and Providers"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="6.1. Parsing"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-bitbake-parsing"></a>6.1. Parsing</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | BitBake parses configuration files, classes, and <code class="filename">.bb</code> files. | ||
| 17 | </p> | ||
| 18 | <p> | ||
| 19 | The first thing BitBake does is look for the <code class="filename">bitbake.conf</code> file. | ||
| 20 | This file resides in the | ||
| 21 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a> | ||
| 22 | within the <code class="filename">meta/conf/</code> directory. | ||
| 23 | BitBake finds it by examining its | ||
| 24 | <a class="link" href="ref-variables-glos.html#var-BBPATH" title="BBPATH"><code class="filename">BBPATH</code></a> environment | ||
| 25 | variable and looking for the <code class="filename">meta/conf/</code> | ||
| 26 | directory. | ||
| 27 | </p> | ||
| 28 | <p> | ||
| 29 | The <code class="filename">bitbake.conf</code> file lists other configuration | ||
| 30 | files to include from a <code class="filename">conf/</code> | ||
| 31 | directory below the directories listed in <code class="filename">BBPATH</code>. | ||
| 32 | In general, the most important configuration file from a user's perspective | ||
| 33 | is <code class="filename">local.conf</code>, which contains a user's customized | ||
| 34 | settings for the OpenEmbedded build environment. | ||
| 35 | Other notable configuration files are the distribution | ||
| 36 | configuration file (set by the | ||
| 37 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-DISTRO" title="DISTRO">DISTRO</a></code> variable) | ||
| 38 | and the machine configuration file | ||
| 39 | (set by the | ||
| 40 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE" title="MACHINE">MACHINE</a></code> variable). | ||
| 41 | The <code class="filename">DISTRO</code> and <code class="filename">MACHINE</code> BitBake environment | ||
| 42 | variables are both usually set in | ||
| 43 | the <code class="filename">local.conf</code> file. | ||
| 44 | Valid distribution | ||
| 45 | configuration files are available in the <code class="filename">meta/conf/distro/</code> directory | ||
| 46 | and valid machine configuration | ||
| 47 | files in the <code class="filename">meta/conf/machine/</code> directory. | ||
| 48 | Within the <code class="filename">meta/conf/machine/include/</code> | ||
| 49 | directory are various <code class="filename">tune-*.inc</code> configuration files that provide common | ||
| 50 | "tuning" settings specific to and shared between particular architectures and machines. | ||
| 51 | </p> | ||
| 52 | <p> | ||
| 53 | After the parsing of the configuration files, some standard classes are included. | ||
| 54 | The <code class="filename">base.bbclass</code> file is always included. | ||
| 55 | Other classes that are specified in the configuration using the | ||
| 56 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-INHERIT" title="INHERIT">INHERIT</a></code> | ||
| 57 | variable are also included. | ||
| 58 | Class files are searched for in a <code class="filename">classes</code> subdirectory | ||
| 59 | under the paths in <code class="filename">BBPATH</code> in the same way as | ||
| 60 | configuration files. | ||
| 61 | </p> | ||
| 62 | <p> | ||
| 63 | After classes are included, the variable | ||
| 64 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-BBFILES" title="BBFILES">BBFILES</a></code> | ||
| 65 | is set, usually in | ||
| 66 | <code class="filename">local.conf</code>, and defines the list of places to search for | ||
| 67 | <code class="filename">.bb</code> files. | ||
| 68 | By default, the <code class="filename">BBFILES</code> variable specifies the | ||
| 69 | <code class="filename">meta/recipes-*/</code> directory within Poky. | ||
| 70 | Adding extra content to <code class="filename">BBFILES</code> is best achieved through the use of | ||
| 71 | BitBake layers as described in the | ||
| 72 | "<a class="link" href="../dev-manual/understanding-and-creating-layers.html" target="_self">Understanding and | ||
| 73 | Creating Layers</a>" section of the Yocto Project Development Manual. | ||
| 74 | </p> | ||
| 75 | <p> | ||
| 76 | BitBake parses each <code class="filename">.bb</code> file in <code class="filename">BBFILES</code> and | ||
| 77 | stores the values of various variables. | ||
| 78 | In summary, for each <code class="filename">.bb</code> | ||
| 79 | file the configuration plus the base class of variables are set, followed | ||
| 80 | by the data in the <code class="filename">.bb</code> file | ||
| 81 | itself, followed by any inherit commands that | ||
| 82 | <code class="filename">.bb</code> file might contain. | ||
| 83 | </p> | ||
| 84 | <p> | ||
| 85 | Because parsing <code class="filename">.bb</code> files is a time | ||
| 86 | consuming process, a cache is kept to speed up subsequent parsing. | ||
| 87 | This cache is invalid if the timestamp of the <code class="filename">.bb</code> | ||
| 88 | file itself changes, or if the timestamps of any of the include, | ||
| 89 | configuration or class files the <code class="filename">.bb</code> | ||
| 90 | file depends on changes. | ||
| 91 | </p> | ||
| 92 | </div></body> | ||
| 93 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-providers.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-providers.html new file mode 100644 index 0000000000..37d34a0e70 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-providers.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>6.2. Preferences and Providers</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-bitbake.html" title="Chapter 6. BitBake"> | ||
| 9 | <link rel="prev" href="ref-bitbake-parsing.html" title="6.1. Parsing"> | ||
| 10 | <link rel="next" href="ref-bitbake-dependencies.html" title="6.3. Dependencies"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="6.2. Preferences and Providers"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-bitbake-providers"></a>6.2. Preferences and Providers</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | Once all the <code class="filename">.bb</code> files have been | ||
| 17 | parsed, BitBake starts to build the target (<code class="filename">core-image-sato</code> | ||
| 18 | in the previous section's example) and looks for providers of that target. | ||
| 19 | Once a provider is selected, BitBake resolves all the dependencies for | ||
| 20 | the target. | ||
| 21 | In the case of <code class="filename">core-image-sato</code>, it would lead to | ||
| 22 | <code class="filename">packagegroup-core-x11-sato</code>, | ||
| 23 | which in turn leads to recipes like <code class="filename">matchbox-terminal</code>, | ||
| 24 | <code class="filename">pcmanfm</code> and <code class="filename">gthumb</code>. | ||
| 25 | These recipes in turn depend on <code class="filename">eglibc</code> and the toolchain. | ||
| 26 | </p> | ||
| 27 | <p> | ||
| 28 | Sometimes a target might have multiple providers. | ||
| 29 | A common example is "virtual/kernel", which is provided by each kernel package. | ||
| 30 | Each machine often selects the best kernel provider by using a line similar to the | ||
| 31 | following in the machine configuration file: | ||
| 32 | </p> | ||
| 33 | <pre class="literallayout"> | ||
| 34 | PREFERRED_PROVIDER_virtual/kernel = "linux-yocto" | ||
| 35 | </pre> | ||
| 36 | <p> | ||
| 37 | The default <code class="filename"><a class="link" href="ref-variables-glos.html#var-PREFERRED_PROVIDER" title="PREFERRED_PROVIDER">PREFERRED_PROVIDER</a></code> | ||
| 38 | is the provider with the same name as the target. | ||
| 39 | </p> | ||
| 40 | <p> | ||
| 41 | Understanding how providers are chosen is made complicated by the fact | ||
| 42 | that multiple versions might exist. | ||
| 43 | BitBake defaults to the highest version of a provider. | ||
| 44 | Version comparisons are made using the same method as Debian. | ||
| 45 | You can use the | ||
| 46 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-PREFERRED_VERSION" title="PREFERRED_VERSION">PREFERRED_VERSION</a></code> | ||
| 47 | variable to specify a particular version (usually in the distro configuration). | ||
| 48 | You can influence the order by using the | ||
| 49 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-DEFAULT_PREFERENCE" title="DEFAULT_PREFERENCE">DEFAULT_PREFERENCE</a></code> | ||
| 50 | variable. | ||
| 51 | By default, files have a preference of "0". | ||
| 52 | Setting the <code class="filename">DEFAULT_PREFERENCE</code> to "-1" makes the | ||
| 53 | package unlikely to be used unless it is explicitly referenced. | ||
| 54 | Setting the <code class="filename">DEFAULT_PREFERENCE</code> to "1" makes it likely the package is used. | ||
| 55 | <code class="filename">PREFERRED_VERSION</code> overrides any <code class="filename">DEFAULT_PREFERENCE</code> setting. | ||
| 56 | <code class="filename">DEFAULT_PREFERENCE</code> is often used to mark newer and more experimental package | ||
| 57 | versions until they have undergone sufficient testing to be considered stable. | ||
| 58 | </p> | ||
| 59 | <p> | ||
| 60 | In summary, BitBake has created a list of providers, which is prioritized, for each target. | ||
| 61 | </p> | ||
| 62 | </div></body> | ||
| 63 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-runtask.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-runtask.html new file mode 100644 index 0000000000..f653e30561 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-runtask.html | |||
| @@ -0,0 +1,86 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>6.5. Running a Task</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-bitbake.html" title="Chapter 6. BitBake"> | ||
| 9 | <link rel="prev" href="ref-bitbake-tasklist.html" title="6.4. The Task List"> | ||
| 10 | <link rel="next" href="ref-bitbake-commandline.html" title="6.6. BitBake Command Line"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="6.5. Running a Task"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-bitbake-runtask"></a>6.5. Running a Task</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | Tasks can either be a shell task or a Python task. | ||
| 17 | For shell tasks, BitBake writes a shell script to | ||
| 18 | <code class="filename">${WORKDIR}/temp/run.do_taskname.pid</code> and then executes the script. | ||
| 19 | The generated shell script contains all the exported variables, and the shell functions | ||
| 20 | with all variables expanded. | ||
| 21 | Output from the shell script goes to the file <code class="filename">${WORKDIR}/temp/log.do_taskname.pid</code>. | ||
| 22 | Looking at the expanded shell functions in the run file and the output in the log files | ||
| 23 | is a useful debugging technique. | ||
| 24 | </p> | ||
| 25 | <p> | ||
| 26 | For Python tasks, BitBake executes the task internally and logs information to the | ||
| 27 | controlling terminal. | ||
| 28 | Future versions of BitBake will write the functions to files similar to the way | ||
| 29 | shell tasks are handled. | ||
| 30 | Logging will be handled in way similar to shell tasks as well. | ||
| 31 | </p> | ||
| 32 | <p> | ||
| 33 | Once all the tasks have been completed BitBake exits. | ||
| 34 | </p> | ||
| 35 | <p> | ||
| 36 | When running a task, BitBake tightly controls the execution environment | ||
| 37 | of the build tasks to make sure unwanted contamination from the build machine | ||
| 38 | cannot influence the build. | ||
| 39 | Consequently, if you do want something to get passed into the build | ||
| 40 | task's environment, you must take a few steps: | ||
| 41 | </p> | ||
| 42 | <div class="orderedlist"><ol class="orderedlist" type="1"> | ||
| 43 | <li class="listitem"> | ||
| 44 | <p>Tell BitBake to load what you want from the environment | ||
| 45 | into the data store. | ||
| 46 | You can do so through the <code class="filename">BB_ENV_EXTRAWHITE</code> | ||
| 47 | variable. | ||
| 48 | For example, assume you want to prevent the build system from | ||
| 49 | accessing your <code class="filename">$HOME/.ccache</code> directory. | ||
| 50 | The following command tells BitBake to load | ||
| 51 | <code class="filename">CCACHE_DIR</code> from the environment into the data | ||
| 52 | store: | ||
| 53 | </p> | ||
| 54 | <pre class="literallayout"> | ||
| 55 | export BB_ENV_EXTRAWHITE="$BB_ENV_EXTRAWHITE CCACHE_DIR" | ||
| 56 | </pre> | ||
| 57 | </li> | ||
| 58 | <li class="listitem"> | ||
| 59 | <p>Tell BitBake to export what you have loaded into the | ||
| 60 | environment store to the task environment of every running task. | ||
| 61 | Loading something from the environment into the data store | ||
| 62 | (previous step) only makes it available in the datastore. | ||
| 63 | To export it to the task environment of every running task, | ||
| 64 | use a command similar to the following in your | ||
| 65 | <code class="filename">local.conf</code> or distro configuration file: | ||
| 66 | </p> | ||
| 67 | <pre class="literallayout"> | ||
| 68 | export CCACHE_DIR | ||
| 69 | </pre> | ||
| 70 | </li> | ||
| 71 | </ol></div> | ||
| 72 | <p> | ||
| 73 | </p> | ||
| 74 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 75 | <h3 class="title">Note</h3> | ||
| 76 | A side effect of the previous steps is that BitBake records the variable | ||
| 77 | as a dependency of the build process in things like the shared state | ||
| 78 | checksums. | ||
| 79 | If doing so results in unnecessary rebuilds of tasks, you can whitelist the | ||
| 80 | variable so that the shared state code ignores the dependency when it creates | ||
| 81 | checksums. | ||
| 82 | For information on this process, see the <code class="filename">BB_HASHBASE_WHITELIST</code> | ||
| 83 | example in the "<a class="link" href="checksums.html" title="3.2.2. Checksums (Signatures)">Checksums (Signatures)</a>" section. | ||
| 84 | </div> | ||
| 85 | </div></body> | ||
| 86 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-tasklist.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-tasklist.html new file mode 100644 index 0000000000..fedbcca285 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake-tasklist.html | |||
| @@ -0,0 +1,54 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>6.4. The Task List</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-bitbake.html" title="Chapter 6. BitBake"> | ||
| 9 | <link rel="prev" href="ref-bitbake-dependencies.html" title="6.3. Dependencies"> | ||
| 10 | <link rel="next" href="ref-bitbake-runtask.html" title="6.5. Running a Task"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="6.4. The Task List"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-bitbake-tasklist"></a>6.4. The Task List</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | Based on the generated list of providers and the dependency information, | ||
| 17 | BitBake can now calculate exactly what tasks it needs to run and in what | ||
| 18 | order it needs to run them. | ||
| 19 | The build now starts with BitBake forking off threads up to the limit set in the | ||
| 20 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-BB_NUMBER_THREADS" title="BB_NUMBER_THREADS">BB_NUMBER_THREADS</a></code> variable. | ||
| 21 | BitBake continues to fork threads as long as there are tasks ready to run, | ||
| 22 | those tasks have all their dependencies met, and the thread threshold has not been | ||
| 23 | exceeded. | ||
| 24 | </p> | ||
| 25 | <p> | ||
| 26 | It is worth noting that you can greatly speed up the build time by properly setting | ||
| 27 | the <code class="filename">BB_NUMBER_THREADS</code> variable. | ||
| 28 | See the | ||
| 29 | "<a class="link" href="../yocto-project-qs/building-image.html" target="_self">Building an Image</a>" | ||
| 30 | section in the Yocto Project Quick Start for more information. | ||
| 31 | </p> | ||
| 32 | <p> | ||
| 33 | As each task completes, a timestamp is written to the directory specified by the | ||
| 34 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-STAMP" title="STAMP">STAMP</a></code> variable (usually | ||
| 35 | <code class="filename">build/tmp/stamps/*/</code>). | ||
| 36 | On subsequent runs, BitBake looks at the <code class="filename">/build/tmp/stamps</code> | ||
| 37 | directory and does not rerun | ||
| 38 | tasks that are already completed unless a timestamp is found to be invalid. | ||
| 39 | Currently, invalid timestamps are only considered on a per | ||
| 40 | <code class="filename">.bb</code> file basis. | ||
| 41 | So, for example, if the configure stamp has a timestamp greater than the | ||
| 42 | compile timestamp for a given target, then the compile task would rerun. | ||
| 43 | Running the compile task again, however, has no effect on other providers | ||
| 44 | that depend on that target. | ||
| 45 | This behavior could change or become configurable in future versions of BitBake. | ||
| 46 | </p> | ||
| 47 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 48 | <h3 class="title">Note</h3> | ||
| 49 | Some tasks are marked as "nostamp" tasks. | ||
| 50 | No timestamp file is created when these tasks are run. | ||
| 51 | Consequently, "nostamp" tasks are always rerun. | ||
| 52 | </div> | ||
| 53 | </div></body> | ||
| 54 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake.html new file mode 100644 index 0000000000..c724158b6e --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-bitbake.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 6. BitBake</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-txt.html" title="5.3.19. meta/recipes.txt"> | ||
| 10 | <link rel="next" href="ref-bitbake-parsing.html" title="6.1. Parsing"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 6. BitBake"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="ref-bitbake"></a>Chapter 6. BitBake</h2></div></div></div> | ||
| 15 | <div class="toc"> | ||
| 16 | <p><b>Table of Contents</b></p> | ||
| 17 | <dl> | ||
| 18 | <dt><span class="section"><a href="ref-bitbake-parsing.html">6.1. Parsing</a></span></dt> | ||
| 19 | <dt><span class="section"><a href="ref-bitbake-providers.html">6.2. Preferences and Providers</a></span></dt> | ||
| 20 | <dt><span class="section"><a href="ref-bitbake-dependencies.html">6.3. Dependencies</a></span></dt> | ||
| 21 | <dt><span class="section"><a href="ref-bitbake-tasklist.html">6.4. The Task List</a></span></dt> | ||
| 22 | <dt><span class="section"><a href="ref-bitbake-runtask.html">6.5. Running a Task</a></span></dt> | ||
| 23 | <dt><span class="section"><a href="ref-bitbake-commandline.html">6.6. BitBake Command Line</a></span></dt> | ||
| 24 | <dt><span class="section"><a href="ref-bitbake-fetchers.html">6.7. Fetchers</a></span></dt> | ||
| 25 | </dl> | ||
| 26 | </div> | ||
| 27 | <p> | ||
| 28 | BitBake is a program written in Python that interprets the metadata used by the OpenEmbedded | ||
| 29 | build system. | ||
| 30 | At some point, developers wonder what actually happens when you enter: | ||
| 31 | </p> | ||
| 32 | <pre class="literallayout"> | ||
| 33 | $ bitbake core-image-sato | ||
| 34 | </pre> | ||
| 35 | <p> | ||
| 36 | </p> | ||
| 37 | <p> | ||
| 38 | This chapter provides an overview of what happens behind the scenes from BitBake's perspective. | ||
| 39 | </p> | ||
| 40 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 41 | <h3 class="title">Note</h3> | ||
| 42 | BitBake strives to be a generic "task" executor that is capable of handling complex dependency relationships. | ||
| 43 | As such, it has no real knowledge of what the tasks being executed actually do. | ||
| 44 | BitBake just considers a list of tasks with dependencies and handles metadata | ||
| 45 | that consists of variables in a certain format that get passed to the tasks. | ||
| 46 | </div> | ||
| 47 | </div></body> | ||
| 48 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-autotools.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-autotools.html new file mode 100644 index 0000000000..36ae47a158 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-autotools.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.2. Autotooled Packages - autotools.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-base.html" title="7.1. The base class - base.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-update-alternatives.html" title="7.3. Alternatives - update-alternatives.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.2. Autotooled Packages - autotools.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-autotools"></a>7.2. Autotooled Packages - <code class="filename">autotools.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | Autotools (<code class="filename">autoconf</code>, <code class="filename">automake</code>, | ||
| 18 | and <code class="filename">libtool</code>) bring standardization. | ||
| 19 | This class defines a set of tasks (configure, compile etc.) that | ||
| 20 | work for all Autotooled packages. | ||
| 21 | It should usually be enough to define a few standard variables | ||
| 22 | and then simply <code class="filename">inherit autotools</code>. | ||
| 23 | This class can also work with software that emulates Autotools. | ||
| 24 | For more information, see the | ||
| 25 | "<a class="link" href="../dev-manual/usingpoky-extend-addpkg-autotools.html" target="_self">Autotooled Package</a>" | ||
| 26 | section in the Yocto Project Development Manual. | ||
| 27 | </p> | ||
| 28 | <p> | ||
| 29 | It's useful to have some idea of how the tasks defined by this class work | ||
| 30 | and what they do behind the scenes. | ||
| 31 | </p> | ||
| 32 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 33 | <li class="listitem"><p><code class="filename">do_configure</code> ‐ regenerates the | ||
| 34 | configure script (using <code class="filename">autoreconf</code>) and then launches it | ||
| 35 | with a standard set of arguments used during cross-compilation. | ||
| 36 | You can pass additional parameters to <code class="filename">configure</code> through the | ||
| 37 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-EXTRA_OECONF" title="EXTRA_OECONF">EXTRA_OECONF</a></code> variable. | ||
| 38 | </p></li> | ||
| 39 | <li class="listitem"><p><code class="filename">do_compile</code> ‐ runs <code class="filename">make</code> with | ||
| 40 | arguments that specify the compiler and linker. | ||
| 41 | You can pass additional arguments through | ||
| 42 | the <code class="filename"><a class="link" href="ref-variables-glos.html#var-EXTRA_OEMAKE" title="EXTRA_OEMAKE">EXTRA_OEMAKE</a></code> variable. | ||
| 43 | </p></li> | ||
| 44 | <li class="listitem"><p><code class="filename">do_install</code> ‐ runs <code class="filename">make install</code> | ||
| 45 | and passes a DESTDIR option, which takes its value from the standard | ||
| 46 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-DESTDIR" title="DESTDIR">DESTDIR</a></code> variable. | ||
| 47 | </p></li> | ||
| 48 | </ul></div> | ||
| 49 | <p> | ||
| 50 | </p> | ||
| 51 | </div></body> | ||
| 52 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-base.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-base.html new file mode 100644 index 0000000000..a10285bf40 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-base.html | |||
| @@ -0,0 +1,28 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.1. The base class - base.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 10 | <link rel="next" href="ref-classes-autotools.html" title="7.2. Autotooled Packages - autotools.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.1. The base class - base.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-base"></a>7.1. The base class - <code class="filename">base.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | The base class is special in that every <code class="filename">.bb</code> | ||
| 18 | file inherits it automatically. | ||
| 19 | This class contains definitions for standard basic | ||
| 20 | tasks such as fetching, unpacking, configuring (empty by default), compiling | ||
| 21 | (runs any <code class="filename">Makefile</code> present), installing (empty by default) and packaging | ||
| 22 | (empty by default). | ||
| 23 | These classes are often overridden or extended by other classes | ||
| 24 | such as <code class="filename">autotools.bbclass</code> or <code class="filename">package.bbclass</code>. | ||
| 25 | The class also contains some commonly used functions such as <code class="filename">oe_runmake</code>. | ||
| 26 | </p> | ||
| 27 | </div></body> | ||
| 28 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-binconfig.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-binconfig.html new file mode 100644 index 0000000000..bbf035e950 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-binconfig.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.5. Binary config scripts - binconfig.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-update-rc.d.html" title="7.4. Initscripts - update-rc.d.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-debian.html" title="7.6. Debian renaming - debian.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.5. Binary config scripts - binconfig.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-binconfig"></a>7.5. Binary config scripts - <code class="filename">binconfig.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | Before <code class="filename">pkg-config</code> had become widespread, libraries shipped shell | ||
| 18 | scripts to give information about the libraries and include paths needed | ||
| 19 | to build software (usually named <code class="filename">LIBNAME-config</code>). | ||
| 20 | This class assists any recipe using such scripts. | ||
| 21 | </p> | ||
| 22 | <p> | ||
| 23 | During staging, BitBake installs such scripts into the | ||
| 24 | <code class="filename">sysroots/</code> directory. | ||
| 25 | BitBake also changes all paths to point into the <code class="filename">sysroots/</code> | ||
| 26 | directory so all builds that use the script will use the correct | ||
| 27 | directories for the cross compiling layout. | ||
| 28 | </p> | ||
| 29 | </div></body> | ||
| 30 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-debian.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-debian.html new file mode 100644 index 0000000000..9d37cbb716 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-debian.html | |||
| @@ -0,0 +1,22 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.6. Debian renaming - debian.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-binconfig.html" title="7.5. Binary config scripts - binconfig.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-pkgconfig.html" title="7.7. Pkg-config - pkgconfig.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.6. Debian renaming - debian.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-debian"></a>7.6. Debian renaming - <code class="filename">debian.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | This class renames packages so that they follow the Debian naming | ||
| 18 | policy (i.e. <code class="filename">eglibc</code> becomes <code class="filename">libc6</code> | ||
| 19 | and <code class="filename">eglibc-devel</code> becomes <code class="filename">libc6-dev</code>. | ||
| 20 | </p> | ||
| 21 | </div></body> | ||
| 22 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-devshell.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-devshell.html new file mode 100644 index 0000000000..cbbcc4c4c6 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-devshell.html | |||
| @@ -0,0 +1,24 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.11. Developer Shell - devshell.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-distutils.html" title="7.10. Python extensions - distutils.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-packagegroup.html" title="7.12. Package Groups - packagegroup.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.11. Developer Shell - devshell.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-devshell"></a>7.11. Developer Shell - <code class="filename">devshell.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | This class adds the <code class="filename">devshell</code> task. | ||
| 18 | Distribution policy dictates whether to include this class. | ||
| 19 | See the | ||
| 20 | "<a class="link" href="../dev-manual/platdev-appdev-devshell.html" target="_self">Using a Development Shell</a>" section | ||
| 21 | in the Yocto Project Development Manual for more information about using <code class="filename">devshell</code>. | ||
| 22 | </p> | ||
| 23 | </div></body> | ||
| 24 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-distutils.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-distutils.html new file mode 100644 index 0000000000..d176cb8dc1 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-distutils.html | |||
| @@ -0,0 +1,31 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.10. Python extensions - distutils.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-perl.html" title="7.9. Perl modules - cpan.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-devshell.html" title="7.11. Developer Shell - devshell.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.10. Python extensions - distutils.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-distutils"></a>7.10. Python extensions - <code class="filename">distutils.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | Recipes for Python extensions are simple. | ||
| 18 | These recipes usually only need to point to the source's archive and then inherit | ||
| 19 | the proper <code class="filename">.bbclass</code> file. | ||
| 20 | Building is split into two methods dependling on which method the module authors used. | ||
| 21 | </p> | ||
| 22 | <p> | ||
| 23 | Extensions that use an Autotools-based build system require Autotools and | ||
| 24 | <code class="filename">distutils</code>-based <code class="filename">.bbclasse</code> files in their recipes. | ||
| 25 | </p> | ||
| 26 | <p> | ||
| 27 | Extensions that use <code class="filename">distutils</code>-based build systems require | ||
| 28 | <code class="filename">distutils.bbclass</code> in their recipes. | ||
| 29 | </p> | ||
| 30 | </div></body> | ||
| 31 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-externalsrc.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-externalsrc.html new file mode 100644 index 0000000000..ead3708607 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-externalsrc.html | |||
| @@ -0,0 +1,72 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.20. Using External Source - externalsrc.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-useradd.html" title="7.19. Adding Users - useradd.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-others.html" title="7.21. Other Classes"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.20. Using External Source - externalsrc.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-externalsrc"></a>7.20. Using External Source - <code class="filename">externalsrc.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | You can use this class to build software from source code that is external to the | ||
| 18 | OpenEmbedded build system. | ||
| 19 | In other words, your source code resides in an external tree outside of the Yocto Project. | ||
| 20 | Building software from an external source tree means that the normal fetch, unpack, and | ||
| 21 | patch process is not used. | ||
| 22 | </p> | ||
| 23 | <p> | ||
| 24 | To use the class, you need to define the | ||
| 25 | <a class="link" href="ref-variables-glos.html#var-S" title="S"><code class="filename">S</code></a> variable to point to the directory that contains the source files. | ||
| 26 | You also need to have your recipe inherit the <code class="filename">externalsrc.bbclass</code> class. | ||
| 27 | </p> | ||
| 28 | <p> | ||
| 29 | This class expects the source code to support recipe builds that use the | ||
| 30 | <a class="link" href="ref-variables-glos.html#var-B" title="B"><code class="filename">B</code></a> variable to point to the directory in | ||
| 31 | which the OpenEmbedded build system places the generated objects built from the recipes. | ||
| 32 | By default, the <code class="filename">B</code> directory is set to the following, which is separate from the | ||
| 33 | Source Directory (<code class="filename">S</code>): | ||
| 34 | </p> | ||
| 35 | <pre class="literallayout"> | ||
| 36 | ${WORKDIR}/${BPN}-{PV}/ | ||
| 37 | </pre> | ||
| 38 | <p> | ||
| 39 | See the glossary entries for the | ||
| 40 | <a class="link" href="ref-variables-glos.html#var-WORKDIR" title="WORKDIR"><code class="filename">WORKDIR</code></a>, | ||
| 41 | <a class="link" href="ref-variables-glos.html#var-BPN" title="BPN"><code class="filename">BPN</code></a>, | ||
| 42 | <a class="link" href="ref-variables-glos.html#var-PV" title="PV"><code class="filename">PV</code></a>, | ||
| 43 | <a class="link" href="ref-variables-glos.html#var-S" title="S"><code class="filename">S</code></a>, and | ||
| 44 | <a class="link" href="ref-variables-glos.html#var-B" title="B"><code class="filename">B</code></a> for more information. | ||
| 45 | </p> | ||
| 46 | <p> | ||
| 47 | You can build object files in the external tree by setting the | ||
| 48 | <code class="filename">B</code> variable equal to <code class="filename">"${S}"</code>. | ||
| 49 | However, this practice does not work well if you use the source for more than one variant | ||
| 50 | (i.e., "natives" such as <code class="filename">quilt-native</code>, | ||
| 51 | or "crosses" such as <code class="filename">gcc-cross</code>). | ||
| 52 | So, be sure there are no "native", "cross", or "multilib" variants of the recipe. | ||
| 53 | </p> | ||
| 54 | <p> | ||
| 55 | If you do want to build different variants of a recipe, you can use the | ||
| 56 | <a class="link" href="ref-variables-glos.html#var-BBCLASSEXTEND" title="BBCLASSEXTEND"><code class="filename">BBCLASSEXTEND</code></a> variable. | ||
| 57 | When you do, the <a class="link" href="ref-variables-glos.html#var-B" title="B"><code class="filename">B</code></a> variable must support the | ||
| 58 | recipe's ability to build variants in different working directories. | ||
| 59 | Most autotools-based recipes support separating these directories. | ||
| 60 | The OpenEmbedded build system defaults to using separate directories for <code class="filename">gcc</code> | ||
| 61 | and some kernel recipes. | ||
| 62 | Alternatively, you can make sure that separate recipes exist that each | ||
| 63 | use the <code class="filename">BBCLASSEXTEND</code> variable to build each variant. | ||
| 64 | The separate recipes can inherit a single target recipe. | ||
| 65 | </p> | ||
| 66 | <p> | ||
| 67 | For information on how to use this class, see the | ||
| 68 | "<a class="link" href="../dev-manual/building-software-from-an-external-source.html" target="_self">Building | ||
| 69 | Software from an External Source</a>" section in the Yocto Project Development Manual. | ||
| 70 | </p> | ||
| 71 | </div></body> | ||
| 72 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-image.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-image.html new file mode 100644 index 0000000000..a8453e97b9 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-image.html | |||
| @@ -0,0 +1,31 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.15. Creating images - image.bbclass and rootfs*.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-kernel.html" title="7.14. Building kernels - kernel.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-sanity.html" title="7.16. Host System sanity checks - sanity.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.15. Creating images - image.bbclass and rootfs*.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-image"></a>7.15. Creating images - <code class="filename">image.bbclass</code> and <code class="filename">rootfs*.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | These classes add support for creating images in several formats. | ||
| 18 | First, the root filesystem is created from packages using | ||
| 19 | one of the <code class="filename">rootfs_*.bbclass</code> | ||
| 20 | files (depending on the package format used) and then the image is created. | ||
| 21 | </p> | ||
| 22 | <p> | ||
| 23 | The <code class="filename"><a class="link" href="ref-variables-glos.html#var-IMAGE_FSTYPES" title="IMAGE_FSTYPES">IMAGE_FSTYPES</a></code> | ||
| 24 | variable controls the types of images to generate. | ||
| 25 | </p> | ||
| 26 | <p> | ||
| 27 | The <code class="filename"><a class="link" href="ref-variables-glos.html#var-IMAGE_INSTALL" title="IMAGE_INSTALL">IMAGE_INSTALL</a></code> | ||
| 28 | variable controls the list of packages to install into the image. | ||
| 29 | </p> | ||
| 30 | </div></body> | ||
| 31 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-insane.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-insane.html new file mode 100644 index 0000000000..1cdf589cff --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-insane.html | |||
| @@ -0,0 +1,105 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.17. Generated output quality assurance checks - insane.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-sanity.html" title="7.16. Host System sanity checks - sanity.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-siteinfo.html" title="7.18. Autotools configuration data cache - siteinfo.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.17. Generated output quality assurance checks - insane.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-insane"></a>7.17. Generated output quality assurance checks - <code class="filename">insane.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | This class adds a step to the package generation process that sanity checks the | ||
| 18 | packages generated by the OpenEmbedded build system. | ||
| 19 | A range of checks are performed that check the build's output | ||
| 20 | for common problems that show up during runtime. | ||
| 21 | Distribution policy usually dictates whether to include this class. | ||
| 22 | </p> | ||
| 23 | <p> | ||
| 24 | You can configure the sanity checks so that specific test failures either raise a warning or | ||
| 25 | an error message. | ||
| 26 | Typically, failures for new tests generate a warning. | ||
| 27 | Subsequent failures for the same test would then generate an error message | ||
| 28 | once the metadata is in a known and good condition. | ||
| 29 | You use the <code class="filename">WARN_QA</code> variable to specify tests for which you | ||
| 30 | want to generate a warning message on failure. | ||
| 31 | You use the <code class="filename">ERROR_QA</code> variable to specify tests for which you | ||
| 32 | want to generate an error message on failure. | ||
| 33 | </p> | ||
| 34 | <p> | ||
| 35 | The following list shows the tests you can list with the <code class="filename">WARN_QA</code> | ||
| 36 | and <code class="filename">ERROR_QA</code> variables: | ||
| 37 | </p> | ||
| 38 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 39 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">ldflags:</code></em></span> | ||
| 40 | Ensures that the binaries were linked with the | ||
| 41 | <code class="filename">LDFLAGS</code> options provided by the build system. | ||
| 42 | If this test fails, check that the <code class="filename">LDFLAGS</code> variable | ||
| 43 | is being passed to the linker command.</p></li> | ||
| 44 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">useless-rpaths:</code></em></span> | ||
| 45 | Checks for dynamic library load paths (rpaths) in the binaries that | ||
| 46 | by default on a standard system are searched by the linker (e.g. | ||
| 47 | <code class="filename">/lib</code> and <code class="filename">/usr/lib</code>). | ||
| 48 | While these paths will not cause any breakage, they do waste space and | ||
| 49 | are unnecessary.</p></li> | ||
| 50 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">rpaths:</code></em></span> | ||
| 51 | Checks for rpaths in the binaries that contain build system paths such | ||
| 52 | as <code class="filename">TMPDIR</code>. | ||
| 53 | If this test fails, bad <code class="filename">-rpath</code> options are being | ||
| 54 | passed to the linker commands and your binaries have potential security | ||
| 55 | issues.</p></li> | ||
| 56 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">dev-so:</code></em></span> | ||
| 57 | Checks that the <code class="filename">.so</code> symbolic links are in the | ||
| 58 | <code class="filename">-dev</code> package and not in any of the other packages. | ||
| 59 | In general, these symlinks are only useful for development purposes. | ||
| 60 | Thus, the <code class="filename">-dev</code> package is the correct location for | ||
| 61 | them. | ||
| 62 | Some very rare cases do exist for dynamically loaded modules where | ||
| 63 | these symlinks are needed instead in the main package. | ||
| 64 | </p></li> | ||
| 65 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">debug-files:</code></em></span> | ||
| 66 | Checks for <code class="filename">.debug</code> directories in anything but the | ||
| 67 | <code class="filename">-dbg</code> package. | ||
| 68 | The debug files should all be in the <code class="filename">-dbg</code> package. | ||
| 69 | Thus, anything packaged elsewhere is incorrect packaging.</p></li> | ||
| 70 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">arch:</code></em></span> | ||
| 71 | Checks the Executable and Linkable Format (ELF) type, bit size and endianness | ||
| 72 | of any binaries to ensure it matches the target architecture. | ||
| 73 | This test fails if any binaries don't match the type since there would be an | ||
| 74 | incompatibility. | ||
| 75 | Sometimes software, like bootloaders, might need to bypass this check. | ||
| 76 | </p></li> | ||
| 77 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">debug-deps:</code></em></span> | ||
| 78 | Checks that <code class="filename">-dbg</code> packages only depend on other | ||
| 79 | <code class="filename">-dbg</code> packages and not on any other types of packages, | ||
| 80 | which would cause a packaging bug.</p></li> | ||
| 81 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">dev-deps:</code></em></span> | ||
| 82 | Checks that <code class="filename">-dev</code> packages only depend on other | ||
| 83 | <code class="filename">-dev</code> packages and not on any other types of packages, | ||
| 84 | which would be a packaging bug.</p></li> | ||
| 85 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">pkgconfig:</code></em></span> | ||
| 86 | Checks <code class="filename">.pc</code> files for any | ||
| 87 | <code class="filename">TMPDIR/WORKDIR</code> paths. | ||
| 88 | Any <code class="filename">.pc</code> file containing these paths is incorrect | ||
| 89 | since <code class="filename">pkg-config</code> itself adds the correct sysroot prefix | ||
| 90 | when the files are accessed.</p></li> | ||
| 91 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">la:</code></em></span> | ||
| 92 | Checks <code class="filename">.la</code> files for any <code class="filename">TMPDIR</code> | ||
| 93 | paths. | ||
| 94 | Any <code class="filename">.la</code> file continaing these paths is incorrect since | ||
| 95 | <code class="filename">libtool</code> adds the correct sysroot prefix when using the | ||
| 96 | files automatically itself.</p></li> | ||
| 97 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">desktop:</code></em></span> | ||
| 98 | Runs the <code class="filename">desktop-file-validate</code> program against any | ||
| 99 | <code class="filename">.desktop</code> files to validate their contents against | ||
| 100 | the specification for <code class="filename">.desktop</code> files.</p></li> | ||
| 101 | </ul></div> | ||
| 102 | <p> | ||
| 103 | </p> | ||
| 104 | </div></body> | ||
| 105 | </html> | ||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.14. Building kernels - kernel.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-package.html" title="7.13. Packaging - package*.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-image.html" title="7.15. Creating images - image.bbclass and rootfs*.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.14. Building kernels - kernel.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-kernel"></a>7.14. Building kernels - <code class="filename">kernel.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | This class handles building Linux kernels. | ||
| 18 | The class contains code to build all kernel trees. | ||
| 19 | All needed headers are staged into the | ||
| 20 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-STAGING_KERNEL_DIR" title="STAGING_KERNEL_DIR">STAGING_KERNEL_DIR</a></code> | ||
| 21 | directory to allow out-of-tree module builds using <code class="filename">module.bbclass</code>. | ||
| 22 | </p> | ||
| 23 | <p> | ||
| 24 | This means that each built kernel module is packaged separately and inter-module | ||
| 25 | dependencies are created by parsing the <code class="filename">modinfo</code> output. | ||
| 26 | If all modules are required, then installing the <code class="filename">kernel-modules</code> | ||
| 27 | package installs all packages with modules and various other kernel packages | ||
| 28 | such as <code class="filename">kernel-vmlinux</code>. | ||
| 29 | </p> | ||
| 30 | <p> | ||
| 31 | Various other classes are used by the kernel and module classes internally including | ||
| 32 | <code class="filename">kernel-arch.bbclass</code>, <code class="filename">module_strip.bbclass</code>, | ||
| 33 | <code class="filename">module-base.bbclass</code>, and <code class="filename">linux-kernel-base.bbclass</code>. | ||
| 34 | </p> | ||
| 35 | </div></body> | ||
| 36 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-others.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-others.html new file mode 100644 index 0000000000..cafdb13b11 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-others.html | |||
| @@ -0,0 +1,24 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.21. Other Classes</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-externalsrc.html" title="7.20. Using External Source - externalsrc.bbclass"> | ||
| 10 | <link rel="next" href="ref-images.html" title="Chapter 8. Images"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.21. Other Classes"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-others"></a>7.21. Other Classes</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | Thus far, this chapter has discussed only the most useful and important | ||
| 17 | classes. | ||
| 18 | However, other classes exist within the <code class="filename">meta/classes</code> directory | ||
| 19 | in the <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 20 | You can examine the <code class="filename">.bbclass</code> files directly for more | ||
| 21 | information. | ||
| 22 | </p> | ||
| 23 | </div></body> | ||
| 24 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-package.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-package.html new file mode 100644 index 0000000000..eb43660f9e --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-package.html | |||
| @@ -0,0 +1,73 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.13. Packaging - package*.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-packagegroup.html" title="7.12. Package Groups - packagegroup.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-kernel.html" title="7.14. Building kernels - kernel.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.13. Packaging - package*.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-package"></a>7.13. Packaging - <code class="filename">package*.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | The packaging classes add support for generating packages from a build's | ||
| 18 | output. | ||
| 19 | The core generic functionality is in <code class="filename">package.bbclass</code>. | ||
| 20 | The code specific to particular package types is contained in various sub-classes such as | ||
| 21 | <code class="filename">package_deb.bbclass</code>, <code class="filename">package_ipk.bbclass</code>, | ||
| 22 | and <code class="filename">package_rpm.bbclass</code>. | ||
| 23 | Most users will want one or more of these classes. | ||
| 24 | </p> | ||
| 25 | <p> | ||
| 26 | You can control the list of resulting package formats by using the | ||
| 27 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-PACKAGE_CLASSES" title="PACKAGE_CLASSES">PACKAGE_CLASSES</a></code> | ||
| 28 | variable defined in the <code class="filename">local.conf</code> configuration file, | ||
| 29 | which is located in the <code class="filename">conf</code> folder of the | ||
| 30 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 31 | When defining the variable, you can specify one or more package types. | ||
| 32 | Since images are generated from packages, a packaging class is | ||
| 33 | needed to enable image generation. | ||
| 34 | The first class listed in this variable is used for image generation. | ||
| 35 | </p> | ||
| 36 | <p> | ||
| 37 | The package class you choose can affect build-time performance and has space | ||
| 38 | ramifications. | ||
| 39 | In general, building a package with RPM takes about thirty percent more time as | ||
| 40 | compared to using IPK to build the same or similar package. | ||
| 41 | This comparison takes into account a complete build of the package with all | ||
| 42 | dependencies previously built. | ||
| 43 | The reason for this discrepancy is because the RPM package manager creates and | ||
| 44 | processes more metadata than the IPK package manager. | ||
| 45 | Consequently, you might consider setting <code class="filename">PACKAGE_CLASSES</code> | ||
| 46 | to "package_ipk" if you are building smaller systems. | ||
| 47 | </p> | ||
| 48 | <p> | ||
| 49 | Keep in mind, however, that RPM starts to provide more abilities than IPK due to | ||
| 50 | the fact that it processes more metadata. | ||
| 51 | For example, this information includes individual file types, file checksum generation | ||
| 52 | and evaluation on install, sparse file support, conflict detection and resolution | ||
| 53 | for multilib systems, ACID style upgrade, and repackaging abilities for rollbacks. | ||
| 54 | </p> | ||
| 55 | <p> | ||
| 56 | Another consideration for packages built using the RPM package manager is space. | ||
| 57 | For smaller systems, the extra space used for the Berkley Database and the amount | ||
| 58 | of metadata can affect your ability to do on-device upgrades. | ||
| 59 | </p> | ||
| 60 | <p> | ||
| 61 | You can find additional information on the effects of the package class at these | ||
| 62 | two Yocto Project mailing list links: | ||
| 63 | </p> | ||
| 64 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 65 | <li class="listitem"><p><a class="ulink" href="http://lists.yoctoproject.org/pipermail/poky/2011-May/006362.html" target="_self"> | ||
| 66 | https://lists.yoctoproject.org/pipermail/poky/2011-May/006362.html</a></p></li> | ||
| 67 | <li class="listitem"><p><a class="ulink" href="http://lists.yoctoproject.org/pipermail/poky/2011-May/006363.html" target="_self"> | ||
| 68 | https://lists.yoctoproject.org/pipermail/poky/2011-May/006363.html</a></p></li> | ||
| 69 | </ul></div> | ||
| 70 | <p> | ||
| 71 | </p> | ||
| 72 | </div></body> | ||
| 73 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-packagegroup.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-packagegroup.html new file mode 100644 index 0000000000..96944339aa --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-packagegroup.html | |||
| @@ -0,0 +1,33 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.12. Package Groups - packagegroup.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-devshell.html" title="7.11. Developer Shell - devshell.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-package.html" title="7.13. Packaging - package*.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.12. Package Groups - packagegroup.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-packagegroup"></a>7.12. Package Groups - <code class="filename">packagegroup.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | This class sets default values appropriate for package group recipes (such as | ||
| 18 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-PACKAGES" title="PACKAGES">PACKAGES</a></code>, | ||
| 19 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-PACKAGE_ARCH" title="PACKAGE_ARCH">PACKAGE_ARCH</a></code>, | ||
| 20 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-ALLOW_EMPTY" title="ALLOW_EMPTY">ALLOW_EMPTY</a></code>, | ||
| 21 | and so forth. | ||
| 22 | It is highly recommended that all package group recipes inherit this class. | ||
| 23 | </p> | ||
| 24 | <p> | ||
| 25 | For information on how to use this class, see the | ||
| 26 | "<a class="link" href="../dev-manual/usingpoky-extend-customimage-customtasks.html" target="_self">Customizing Images Using Custom Package Tasks</a>" | ||
| 27 | section in the Yocto Project Development Manual. | ||
| 28 | </p> | ||
| 29 | <p> | ||
| 30 | Previously, this class was named <code class="filename">task.bbclass</code>. | ||
| 31 | </p> | ||
| 32 | </div></body> | ||
| 33 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-perl.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-perl.html new file mode 100644 index 0000000000..b4be9b4da0 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-perl.html | |||
| @@ -0,0 +1,31 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.9. Perl modules - cpan.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-src-distribute.html" title="7.8. Distribution of sources - src_distribute_local.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-distutils.html" title="7.10. Python extensions - distutils.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.9. Perl modules - cpan.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-perl"></a>7.9. Perl modules - <code class="filename">cpan.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | Recipes for Perl modules are simple. | ||
| 18 | These recipes usually only need to point to the source's archive and then inherit the | ||
| 19 | proper <code class="filename">.bbclass</code> file. | ||
| 20 | Building is split into two methods depending on which method the module authors used. | ||
| 21 | </p> | ||
| 22 | <p> | ||
| 23 | Modules that use old <code class="filename">Makefile.PL</code>-based build system require | ||
| 24 | <code class="filename">cpan.bbclass</code> in their recipes. | ||
| 25 | </p> | ||
| 26 | <p> | ||
| 27 | Modules that use <code class="filename">Build.PL</code>-based build system require | ||
| 28 | using <code class="filename">cpan_build.bbclass</code> in their recipes. | ||
| 29 | </p> | ||
| 30 | </div></body> | ||
| 31 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-pkgconfig.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-pkgconfig.html new file mode 100644 index 0000000000..09566fd328 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-pkgconfig.html | |||
| @@ -0,0 +1,27 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.7. Pkg-config - pkgconfig.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-debian.html" title="7.6. Debian renaming - debian.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-src-distribute.html" title="7.8. Distribution of sources - src_distribute_local.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.7. Pkg-config - pkgconfig.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-pkgconfig"></a>7.7. Pkg-config - <code class="filename">pkgconfig.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | <code class="filename">pkg-config</code> brought standardization and this class aims to make its | ||
| 18 | integration smooth for all libraries that make use of it. | ||
| 19 | </p> | ||
| 20 | <p> | ||
| 21 | During staging, BitBake installs <code class="filename">pkg-config</code> data into the | ||
| 22 | <code class="filename">sysroots/</code> directory. | ||
| 23 | By making use of sysroot functionality within <code class="filename">pkg-config</code>, | ||
| 24 | this class no longer has to manipulate the files. | ||
| 25 | </p> | ||
| 26 | </div></body> | ||
| 27 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-sanity.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-sanity.html new file mode 100644 index 0000000000..0e3a19a76a --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-sanity.html | |||
| @@ -0,0 +1,25 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.16. Host System sanity checks - sanity.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-image.html" title="7.15. Creating images - image.bbclass and rootfs*.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-insane.html" title="7.17. Generated output quality assurance checks - insane.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.16. Host System sanity checks - sanity.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-sanity"></a>7.16. Host System sanity checks - <code class="filename">sanity.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | This class checks to see if prerequisite software is present so that | ||
| 18 | users can be notified of potential problems that might affect their build. | ||
| 19 | The class also performs basic user configuration checks from | ||
| 20 | the <code class="filename">local.conf</code> configuration file to | ||
| 21 | prevent common mistakes that cause build failures. | ||
| 22 | Distribution policy usually determines whether to include this class. | ||
| 23 | </p> | ||
| 24 | </div></body> | ||
| 25 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-siteinfo.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-siteinfo.html new file mode 100644 index 0000000000..878794d201 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-siteinfo.html | |||
| @@ -0,0 +1,39 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.18. Autotools configuration data cache - siteinfo.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-insane.html" title="7.17. Generated output quality assurance checks - insane.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-useradd.html" title="7.19. Adding Users - useradd.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.18. Autotools configuration data cache - siteinfo.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-siteinfo"></a>7.18. Autotools configuration data cache - <code class="filename">siteinfo.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | Autotools can require tests that must execute on the target hardware. | ||
| 18 | Since this is not possible in general when cross compiling, site information is | ||
| 19 | used to provide cached test results so these tests can be skipped over but | ||
| 20 | still make the correct values available. | ||
| 21 | The <code class="filename"><a class="link" href="structure-meta-site.html" title="5.3.18. meta/site/">meta/site directory</a></code> | ||
| 22 | contains test results sorted into different categories such as architecture, endianness, and | ||
| 23 | the <code class="filename">libc</code> used. | ||
| 24 | Site information provides a list of files containing data relevant to | ||
| 25 | the current build in the | ||
| 26 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-CONFIG_SITE" title="CONFIG_SITE">CONFIG_SITE</a></code> variable | ||
| 27 | that Autotools automatically picks up. | ||
| 28 | </p> | ||
| 29 | <p> | ||
| 30 | The class also provides variables like | ||
| 31 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-SITEINFO_ENDIANNESS" title="SITEINFO_ENDIANNESS">SITEINFO_ENDIANNESS</a></code> | ||
| 32 | and <code class="filename"><a class="link" href="ref-variables-glos.html#var-SITEINFO_BITS" title="SITEINFO_BITS">SITEINFO_BITS</a></code> | ||
| 33 | that can be used elsewhere in the metadata. | ||
| 34 | </p> | ||
| 35 | <p> | ||
| 36 | Because this class is included from <code class="filename">base.bbclass</code>, it is always active. | ||
| 37 | </p> | ||
| 38 | </div></body> | ||
| 39 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-src-distribute.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-src-distribute.html new file mode 100644 index 0000000000..a1bbb8b415 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-src-distribute.html | |||
| @@ -0,0 +1,43 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.8. Distribution of sources - src_distribute_local.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-pkgconfig.html" title="7.7. Pkg-config - pkgconfig.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-perl.html" title="7.9. Perl modules - cpan.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.8. Distribution of sources - src_distribute_local.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-src-distribute"></a>7.8. Distribution of sources - <code class="filename">src_distribute_local.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | Many software licenses require that source files be provided along with the binaries. | ||
| 18 | To simplify this process, two classes were created: | ||
| 19 | <code class="filename">src_distribute.bbclass</code> and | ||
| 20 | <code class="filename">src_distribute_local.bbclass</code>. | ||
| 21 | </p> | ||
| 22 | <p> | ||
| 23 | The results of these classes are <code class="filename">tmp/deploy/source/</code> | ||
| 24 | subdirs with sources sorted by | ||
| 25 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-LICENSE" title="LICENSE">LICENSE</a></code> field. | ||
| 26 | If recipes list few licenses (or have entries like "Bitstream Vera"), | ||
| 27 | the source archive is placed in each license directory. | ||
| 28 | </p> | ||
| 29 | <p> | ||
| 30 | This class operates using three modes: | ||
| 31 | </p> | ||
| 32 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 33 | <li class="listitem"><p><span class="emphasis"><em>copy:</em></span> Copies the files to the | ||
| 34 | distribute directory.</p></li> | ||
| 35 | <li class="listitem"><p><span class="emphasis"><em>symlink:</em></span> Symlinks the files to the | ||
| 36 | distribute directory.</p></li> | ||
| 37 | <li class="listitem"><p><span class="emphasis"><em>move+symlink:</em></span> Moves the files into | ||
| 38 | the distribute directory and then symlinks them back.</p></li> | ||
| 39 | </ul></div> | ||
| 40 | <p> | ||
| 41 | </p> | ||
| 42 | </div></body> | ||
| 43 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-update-alternatives.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-update-alternatives.html new file mode 100644 index 0000000000..cb6dfac6c4 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-update-alternatives.html | |||
| @@ -0,0 +1,48 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.3. Alternatives - update-alternatives.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-autotools.html" title="7.2. Autotooled Packages - autotools.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-update-rc.d.html" title="7.4. Initscripts - update-rc.d.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.3. Alternatives - update-alternatives.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-update-alternatives"></a>7.3. Alternatives - <code class="filename">update-alternatives.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | Several programs can fulfill the same or similar function and be installed with the same name. | ||
| 18 | For example, the <code class="filename">ar</code> command is available from the | ||
| 19 | <code class="filename">busybox</code>, <code class="filename">binutils</code> and | ||
| 20 | <code class="filename">elfutils</code> packages. | ||
| 21 | The <code class="filename">update-alternatives.bbclass</code> class handles renaming the | ||
| 22 | binaries so that multiple packages can be installed without conflicts. | ||
| 23 | The <code class="filename">ar</code> command still works regardless of which packages are installed | ||
| 24 | or subsequently removed. | ||
| 25 | The class renames the conflicting binary in each package and symlinks the highest | ||
| 26 | priority binary during installation or removal of packages. | ||
| 27 | </p> | ||
| 28 | <p> | ||
| 29 | Four variables control this class: | ||
| 30 | </p> | ||
| 31 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 32 | <li class="listitem"><p><code class="filename">ALTERNATIVE_NAME</code> ‐ The name of the | ||
| 33 | binary that is replaced (<code class="filename">ar</code> in this example).</p></li> | ||
| 34 | <li class="listitem"><p><code class="filename">ALTERNATIVE_LINK</code> ‐ The path to | ||
| 35 | the resulting binary (<code class="filename">/bin/ar</code> in this example).</p></li> | ||
| 36 | <li class="listitem"><p><code class="filename">ALTERNATIVE_PATH</code> ‐ The path to the | ||
| 37 | real binary (<code class="filename">/usr/bin/ar.binutils</code> in this example).</p></li> | ||
| 38 | <li class="listitem"><p><code class="filename">ALTERNATIVE_PRIORITY</code> ‐ The priority of | ||
| 39 | the binary. | ||
| 40 | The version with the most features should have the highest priority.</p></li> | ||
| 41 | </ul></div> | ||
| 42 | <p> | ||
| 43 | </p> | ||
| 44 | <p> | ||
| 45 | Currently, the OpenEmbedded build system supports only one binary per package. | ||
| 46 | </p> | ||
| 47 | </div></body> | ||
| 48 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-update-rc.d.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-update-rc.d.html new file mode 100644 index 0000000000..7ab1688c3b --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-update-rc.d.html | |||
| @@ -0,0 +1,28 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.4. Initscripts - update-rc.d.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-update-alternatives.html" title="7.3. Alternatives - update-alternatives.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-binconfig.html" title="7.5. Binary config scripts - binconfig.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.4. Initscripts - update-rc.d.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-update-rc.d"></a>7.4. Initscripts - <code class="filename">update-rc.d.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | This class uses <code class="filename">update-rc.d</code> to safely install an | ||
| 18 | initialization script on behalf of the package. | ||
| 19 | The OpenEmbedded build system takes care of details such as making sure the script is stopped before | ||
| 20 | a package is removed and started when the package is installed. | ||
| 21 | Three variables control this class: | ||
| 22 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-INITSCRIPT_PACKAGES" title="INITSCRIPT_PACKAGES">INITSCRIPT_PACKAGES</a></code>, | ||
| 23 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-INITSCRIPT_NAME" title="INITSCRIPT_NAME">INITSCRIPT_NAME</a></code> and | ||
| 24 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-INITSCRIPT_PARAMS" title="INITSCRIPT_PARAMS">INITSCRIPT_PARAMS</a></code>. | ||
| 25 | See the variable links for details. | ||
| 26 | </p> | ||
| 27 | </div></body> | ||
| 28 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-useradd.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-useradd.html new file mode 100644 index 0000000000..cc78211aab --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes-useradd.html | |||
| @@ -0,0 +1,28 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>7.19. Adding Users - useradd.bbclass</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-classes.html" title="Chapter 7. Classes"> | ||
| 9 | <link rel="prev" href="ref-classes-siteinfo.html" title="7.18. Autotools configuration data cache - siteinfo.bbclass"> | ||
| 10 | <link rel="next" href="ref-classes-externalsrc.html" title="7.20. Using External Source - externalsrc.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="7.19. Adding Users - useradd.bbclass"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-classes-useradd"></a>7.19. Adding Users - <code class="filename">useradd.bbclass</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | If you have packages that install files that are owned by custom users or groups, | ||
| 18 | you can use this class to specify those packages and associate the users and groups | ||
| 19 | with those packages. | ||
| 20 | The <code class="filename">meta-skeleton/recipes-skeleton/useradd/useradd-example.bb</code> | ||
| 21 | recipe in the <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a> | ||
| 22 | provides a simple exmample that shows how to add three | ||
| 23 | users and groups to two packages. | ||
| 24 | See the <code class="filename">useradd-example.bb</code> for more information on how to | ||
| 25 | use this class. | ||
| 26 | </p> | ||
| 27 | </div></body> | ||
| 28 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes.html new file mode 100644 index 0000000000..35cc535e70 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-classes.html | |||
| @@ -0,0 +1,61 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 7. Classes</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="ref-bitbake-fetchers.html" title="6.7. Fetchers"> | ||
| 10 | <link rel="next" href="ref-classes-base.html" title="7.1. The base class - base.bbclass"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 7. Classes"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="ref-classes"></a>Chapter 7. Classes</h2></div></div></div> | ||
| 15 | <div class="toc"> | ||
| 16 | <p><b>Table of Contents</b></p> | ||
| 17 | <dl> | ||
| 18 | <dt><span class="section"><a href="ref-classes-base.html">7.1. The base class - <code class="filename">base.bbclass</code></a></span></dt> | ||
| 19 | <dt><span class="section"><a href="ref-classes-autotools.html">7.2. Autotooled Packages - <code class="filename">autotools.bbclass</code></a></span></dt> | ||
| 20 | <dt><span class="section"><a href="ref-classes-update-alternatives.html">7.3. Alternatives - <code class="filename">update-alternatives.bbclass</code></a></span></dt> | ||
| 21 | <dt><span class="section"><a href="ref-classes-update-rc.d.html">7.4. Initscripts - <code class="filename">update-rc.d.bbclass</code></a></span></dt> | ||
| 22 | <dt><span class="section"><a href="ref-classes-binconfig.html">7.5. Binary config scripts - <code class="filename">binconfig.bbclass</code></a></span></dt> | ||
| 23 | <dt><span class="section"><a href="ref-classes-debian.html">7.6. Debian renaming - <code class="filename">debian.bbclass</code></a></span></dt> | ||
| 24 | <dt><span class="section"><a href="ref-classes-pkgconfig.html">7.7. Pkg-config - <code class="filename">pkgconfig.bbclass</code></a></span></dt> | ||
| 25 | <dt><span class="section"><a href="ref-classes-src-distribute.html">7.8. Distribution of sources - <code class="filename">src_distribute_local.bbclass</code></a></span></dt> | ||
| 26 | <dt><span class="section"><a href="ref-classes-perl.html">7.9. Perl modules - <code class="filename">cpan.bbclass</code></a></span></dt> | ||
| 27 | <dt><span class="section"><a href="ref-classes-distutils.html">7.10. Python extensions - <code class="filename">distutils.bbclass</code></a></span></dt> | ||
| 28 | <dt><span class="section"><a href="ref-classes-devshell.html">7.11. Developer Shell - <code class="filename">devshell.bbclass</code></a></span></dt> | ||
| 29 | <dt><span class="section"><a href="ref-classes-packagegroup.html">7.12. Package Groups - <code class="filename">packagegroup.bbclass</code></a></span></dt> | ||
| 30 | <dt><span class="section"><a href="ref-classes-package.html">7.13. Packaging - <code class="filename">package*.bbclass</code></a></span></dt> | ||
| 31 | <dt><span class="section"><a href="ref-classes-kernel.html">7.14. Building kernels - <code class="filename">kernel.bbclass</code></a></span></dt> | ||
| 32 | <dt><span class="section"><a href="ref-classes-image.html">7.15. Creating images - <code class="filename">image.bbclass</code> and <code class="filename">rootfs*.bbclass</code></a></span></dt> | ||
| 33 | <dt><span class="section"><a href="ref-classes-sanity.html">7.16. Host System sanity checks - <code class="filename">sanity.bbclass</code></a></span></dt> | ||
| 34 | <dt><span class="section"><a href="ref-classes-insane.html">7.17. Generated output quality assurance checks - <code class="filename">insane.bbclass</code></a></span></dt> | ||
| 35 | <dt><span class="section"><a href="ref-classes-siteinfo.html">7.18. Autotools configuration data cache - <code class="filename">siteinfo.bbclass</code></a></span></dt> | ||
| 36 | <dt><span class="section"><a href="ref-classes-useradd.html">7.19. Adding Users - <code class="filename">useradd.bbclass</code></a></span></dt> | ||
| 37 | <dt><span class="section"><a href="ref-classes-externalsrc.html">7.20. Using External Source - <code class="filename">externalsrc.bbclass</code></a></span></dt> | ||
| 38 | <dt><span class="section"><a href="ref-classes-others.html">7.21. Other Classes</a></span></dt> | ||
| 39 | </dl> | ||
| 40 | </div> | ||
| 41 | <p> | ||
| 42 | Class files are used to abstract common functionality and share it amongst multiple | ||
| 43 | <code class="filename">.bb</code> files. | ||
| 44 | Any metadata usually found in a <code class="filename">.bb</code> file can also be placed in a class | ||
| 45 | file. | ||
| 46 | Class files are identified by the extension <code class="filename">.bbclass</code> and are usually placed | ||
| 47 | in a <code class="filename">classes/</code> directory beneath the | ||
| 48 | <code class="filename">meta*/</code> directory found in the | ||
| 49 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 50 | Class files can also be pointed to by BUILDDIR (e.g. <code class="filename">build/</code>)in the same way as | ||
| 51 | <code class="filename">.conf</code> files in the <code class="filename">conf</code> directory. | ||
| 52 | Class files are searched for in <a class="link" href="ref-variables-glos.html#var-BBPATH" title="BBPATH"><code class="filename">BBPATH</code></a> | ||
| 53 | using the same method by which <code class="filename">.conf</code> files are searched. | ||
| 54 | </p> | ||
| 55 | <p> | ||
| 56 | In most cases inheriting the class is enough to enable its features, although | ||
| 57 | for some classes you might need to set variables or override some of the | ||
| 58 | default behaviour. | ||
| 59 | </p> | ||
| 60 | </div></body> | ||
| 61 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-features-backfill.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-features-backfill.html new file mode 100644 index 0000000000..0ad90dfd70 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-features-backfill.html | |||
| @@ -0,0 +1,88 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>9.4. Feature Backfilling</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-features.html" title="Chapter 9. Reference: Features"> | ||
| 9 | <link rel="prev" href="ref-features-image.html" title="9.3. Images"> | ||
| 10 | <link rel="next" href="ref-variables-glos.html" title="Chapter 10. Variables Glossary"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="9.4. Feature Backfilling"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-features-backfill"></a>9.4. Feature Backfilling</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | Sometimes it is necessary in the OpenEmbedded build system to extend | ||
| 17 | <a class="link" href="ref-variables-glos.html#var-MACHINE_FEATURES" title="MACHINE_FEATURES"><code class="filename">MACHINE_FEATURES</code></a> | ||
| 18 | or <a class="link" href="ref-variables-glos.html#var-DISTRO_FEATURES" title="DISTRO_FEATURES"><code class="filename">DISTRO_FEATURES</code></a> | ||
| 19 | to control functionality that was previously enabled and not able | ||
| 20 | to be disabled. | ||
| 21 | For these cases, we need to add an | ||
| 22 | additional feature item to appear in one of these variables, | ||
| 23 | but we do not want to force developers who have existing values | ||
| 24 | of the variables in their configuration to add the new feature | ||
| 25 | in order to retain the same overall level of functionality. | ||
| 26 | Thus, the OpenEmbedded build system has a mechanism to | ||
| 27 | automatically "backfill" these added features into existing | ||
| 28 | distro or machine configurations. | ||
| 29 | You can see the list of features for which this is done by | ||
| 30 | finding the | ||
| 31 | <a class="link" href="ref-variables-glos.html#var-DISTRO_FEATURES_BACKFILL" title="DISTRO_FEATURES_BACKFILL"><code class="filename">DISTRO_FEATURES_BACKFILL</code></a> | ||
| 32 | and <a class="link" href="ref-variables-glos.html#var-MACHINE_FEATURES_BACKFILL" title="MACHINE_FEATURES_BACKFILL"><code class="filename">MACHINE_FEATURES_BACKFILL</code></a> | ||
| 33 | variables in the <code class="filename">meta/conf/bitbake.conf</code> file. | ||
| 34 | </p> | ||
| 35 | <p> | ||
| 36 | Because such features are backfilled by default into all | ||
| 37 | configurations as described in the previous paragraph, developers | ||
| 38 | who wish to disable the new features need to be able to selectively | ||
| 39 | prevent the backfilling from occurring. | ||
| 40 | They can do this by adding the undesired feature or features to the | ||
| 41 | <a class="link" href="ref-variables-glos.html#var-DISTRO_FEATURES_BACKFILL_CONSIDERED" title="DISTRO_FEATURES_BACKFILL_CONSIDERED"><code class="filename">DISTRO_FEATURES_BACKFILL_CONSIDERED</code></a> | ||
| 42 | or <a class="link" href="ref-variables-glos.html#var-MACHINE_FEATURES_BACKFILL_CONSIDERED" title="MACHINE_FEATURES_BACKFILL_CONSIDERED"><code class="filename">MACHINE_FEATURES_BACKFILL_CONSIDERED</code></a> | ||
| 43 | variables for distro features and machine features respectively. | ||
| 44 | </p> | ||
| 45 | <p> | ||
| 46 | Here are two examples to help illustrate feature backfilling: | ||
| 47 | </p> | ||
| 48 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 49 | <li class="listitem"><p><span class="emphasis"><em>The "pulseaudio" distro feature option</em></span>: | ||
| 50 | Previously, PulseAudio support was enabled within the Qt and | ||
| 51 | GStreamer frameworks. | ||
| 52 | Because of this, the feature is backfilled and thus | ||
| 53 | enabled for all distros through the | ||
| 54 | <code class="filename">DISTRO_FEATURES_BACKFILL</code> | ||
| 55 | variable in the <code class="filename">meta/conf/bitbake.conf</code> file. | ||
| 56 | However, your distro needs to disable the feature. | ||
| 57 | You can disable the feature without affecting | ||
| 58 | other existing distro configurations that need PulseAudio support | ||
| 59 | by adding "pulseaudio" to | ||
| 60 | <code class="filename">DISTRO_FEATURES_BACKFILL_CONSIDERED</code> | ||
| 61 | in your distro's <code class="filename">.conf</code> file. | ||
| 62 | Adding the feature to this variable when it also | ||
| 63 | exists in the <code class="filename">DISTRO_FEATURES_BACKFILL</code> | ||
| 64 | variable prevents the build system from adding the feature to | ||
| 65 | your configuration's <code class="filename">DISTRO_FEATURES</code>, effectively disabling | ||
| 66 | the feature for that particular distro.</p></li> | ||
| 67 | <li class="listitem"><p><span class="emphasis"><em>The "rtc" machine feature option</em></span>: | ||
| 68 | Previously, real time clock (RTC) support was enabled for all | ||
| 69 | target devices. | ||
| 70 | Because of this, the feature is backfilled and thus enabled | ||
| 71 | for all machines through the <code class="filename">MACHINE_FEATURES_BACKFILL</code> | ||
| 72 | variable in the <code class="filename">meta/conf/bitbake.conf</code> file. | ||
| 73 | However, your target device does not have this capability. | ||
| 74 | You can disable RTC support for your device without | ||
| 75 | affecting other machines that need RTC support | ||
| 76 | by adding the feature to your machine's | ||
| 77 | <code class="filename">MACHINE_FEATURES_BACKFILL_CONSIDERED</code> | ||
| 78 | list in the machine's <code class="filename">.conf</code> file. | ||
| 79 | Adding the feature to this variable when it also | ||
| 80 | exists in the <code class="filename">MACHINE_FEATURES_BACKFILL</code> | ||
| 81 | variable prevents the build system from adding the feature to | ||
| 82 | your configuration's <code class="filename">MACHINE_FEATURES</code>, effectively | ||
| 83 | disabling RTC support for that particular machine.</p></li> | ||
| 84 | </ul></div> | ||
| 85 | <p> | ||
| 86 | </p> | ||
| 87 | </div></body> | ||
| 88 | </html> | ||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>9.1. Distro</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-features.html" title="Chapter 9. Reference: Features"> | ||
| 9 | <link rel="prev" href="ref-features.html" title="Chapter 9. Reference: Features"> | ||
| 10 | <link rel="next" href="ref-features-machine.html" title="9.2. Machine"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="9.1. Distro"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-features-distro"></a>9.1. Distro</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | The items below are features you can use with | ||
| 17 | <a class="link" href="ref-variables-glos.html#var-DISTRO_FEATURES" title="DISTRO_FEATURES"><code class="filename">DISTRO_FEATURES</code></a>. | ||
| 18 | Features do not have a one-to-one correspondence to packages, and they can | ||
| 19 | go beyond simply controlling the installation of a package or packages. | ||
| 20 | Sometimes a feature can influence how certain recipes are built. | ||
| 21 | For example, a feature might determine whether a particular configure option | ||
| 22 | is specified within <code class="filename">do_configure</code> for a particular | ||
| 23 | recipe. | ||
| 24 | </p> | ||
| 25 | <p> | ||
| 26 | This list only represents features as shipped with the Yocto Project metadata: | ||
| 27 | </p> | ||
| 28 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 29 | <li class="listitem"><p><span class="emphasis"><em>alsa:</em></span> ALSA support will be included (OSS compatibility | ||
| 30 | kernel modules will be installed if available).</p></li> | ||
| 31 | <li class="listitem"><p><span class="emphasis"><em>bluetooth:</em></span> Include bluetooth support (integrated BT only) | ||
| 32 | </p></li> | ||
| 33 | <li class="listitem"><p><span class="emphasis"><em>ext2:</em></span> Include tools for supporting for devices with internal | ||
| 34 | HDD/Microdrive for storing files (instead of Flash only devices) | ||
| 35 | </p></li> | ||
| 36 | <li class="listitem"><p><span class="emphasis"><em>irda:</em></span> Include Irda support | ||
| 37 | </p></li> | ||
| 38 | <li class="listitem"><p><span class="emphasis"><em>keyboard:</em></span> Include keyboard support (e.g. keymaps will be | ||
| 39 | loaded during boot). | ||
| 40 | </p></li> | ||
| 41 | <li class="listitem"><p><span class="emphasis"><em>pci:</em></span> Include PCI bus support | ||
| 42 | </p></li> | ||
| 43 | <li class="listitem"><p><span class="emphasis"><em>pcmcia:</em></span> Include PCMCIA/CompactFlash support | ||
| 44 | </p></li> | ||
| 45 | <li class="listitem"><p><span class="emphasis"><em>usbgadget:</em></span> USB Gadget Device support (for USB | ||
| 46 | networking/serial/storage) | ||
| 47 | </p></li> | ||
| 48 | <li class="listitem"><p><span class="emphasis"><em>usbhost:</em></span> USB Host support (allows to connect external | ||
| 49 | keyboard, mouse, storage, network etc) | ||
| 50 | </p></li> | ||
| 51 | <li class="listitem"><p><span class="emphasis"><em>wifi:</em></span> WiFi support (integrated only) | ||
| 52 | </p></li> | ||
| 53 | <li class="listitem"><p><span class="emphasis"><em>cramfs:</em></span> CramFS support | ||
| 54 | </p></li> | ||
| 55 | <li class="listitem"><p><span class="emphasis"><em>ipsec:</em></span> IPSec support | ||
| 56 | </p></li> | ||
| 57 | <li class="listitem"><p><span class="emphasis"><em>ipv6:</em></span> IPv6 support | ||
| 58 | </p></li> | ||
| 59 | <li class="listitem"><p><span class="emphasis"><em>nfs:</em></span> NFS client support (for mounting NFS exports on | ||
| 60 | device)</p></li> | ||
| 61 | <li class="listitem"><p><span class="emphasis"><em>ppp:</em></span> PPP dialup support</p></li> | ||
| 62 | <li class="listitem"><p><span class="emphasis"><em>smbfs:</em></span> SMB networks client support (for mounting | ||
| 63 | Samba/Microsoft Windows shares on device)</p></li> | ||
| 64 | </ul></div> | ||
| 65 | <p> | ||
| 66 | </p> | ||
| 67 | </div></body> | ||
| 68 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-features-image.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-features-image.html new file mode 100644 index 0000000000..e705a2922f --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-features-image.html | |||
| @@ -0,0 +1,73 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>9.3. Images</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-features.html" title="Chapter 9. Reference: Features"> | ||
| 9 | <link rel="prev" href="ref-features-machine.html" title="9.2. Machine"> | ||
| 10 | <link rel="next" href="ref-features-backfill.html" title="9.4. Feature Backfilling"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="9.3. Images"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-features-image"></a>9.3. Images</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | The contents of images generated by the OpenEmbedded build system can be controlled by the | ||
| 17 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-IMAGE_FEATURES" title="IMAGE_FEATURES">IMAGE_FEATURES</a></code> | ||
| 18 | and <code class="filename"><a class="link" href="ref-variables-glos.html#var-EXTRA_IMAGE_FEATURES" title="EXTRA_IMAGE_FEATURES">EXTRA_IMAGE_FEATURES</a></code> | ||
| 19 | variables that you typically configure in your image recipes. | ||
| 20 | Through these variables you can add several different | ||
| 21 | predefined packages such as development utilities or packages with debug | ||
| 22 | information needed to investigate application problems or profile applications. | ||
| 23 | </p> | ||
| 24 | <p> | ||
| 25 | Current list of | ||
| 26 | <code class="filename">IMAGE_FEATURES</code> contains the following: | ||
| 27 | </p> | ||
| 28 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 29 | <li class="listitem"><p><span class="emphasis"><em>splash:</em></span> Enables showing a splash screen during boot. | ||
| 30 | By default, this screen is provided by <code class="filename">psplash</code>, which does | ||
| 31 | allow customization. | ||
| 32 | If you prefer to use an alternative splash screen package, you can do so by | ||
| 33 | setting the <code class="filename">SPLASH</code> variable | ||
| 34 | to a different package name (or names) within the image recipe or at the distro | ||
| 35 | configuration level.</p></li> | ||
| 36 | <li class="listitem"><p><span class="emphasis"><em>ssh-server-dropbear:</em></span> Installs the Dropbear minimal | ||
| 37 | SSH server. | ||
| 38 | </p></li> | ||
| 39 | <li class="listitem"><p><span class="emphasis"><em>ssh-server-openssh:</em></span> Installs the OpenSSH SSH server, | ||
| 40 | which is more full-featured than Dropbear. | ||
| 41 | Note that if both the OpenSSH SSH server and the Dropbear minimal SSH server | ||
| 42 | are present in <code class="filename">IMAGE_FEATURES</code>, then OpenSSH will take | ||
| 43 | precedence and Dropbear will not be installed.</p></li> | ||
| 44 | <li class="listitem"><p><span class="emphasis"><em>x11:</em></span> Installs the X server</p></li> | ||
| 45 | <li class="listitem"><p><span class="emphasis"><em>x11-base:</em></span> Installs the X server with a | ||
| 46 | minimal environment.</p></li> | ||
| 47 | <li class="listitem"><p><span class="emphasis"><em>x11-sato:</em></span> Installs the OpenedHand Sato environment. | ||
| 48 | </p></li> | ||
| 49 | <li class="listitem"><p><span class="emphasis"><em>tools-sdk:</em></span> Installs a full SDK that runs on the device. | ||
| 50 | </p></li> | ||
| 51 | <li class="listitem"><p><span class="emphasis"><em>tools-debug:</em></span> Installs debugging tools such as | ||
| 52 | <code class="filename">strace</code> and <code class="filename">gdb</code>. | ||
| 53 | </p></li> | ||
| 54 | <li class="listitem"><p><span class="emphasis"><em>tools-profile:</em></span> Installs profiling tools such as | ||
| 55 | <code class="filename">oprofile</code>, <code class="filename">exmap</code>, and | ||
| 56 | <code class="filename">LTTng</code>.</p></li> | ||
| 57 | <li class="listitem"><p><span class="emphasis"><em>tools-testapps:</em></span> Installs device testing tools (e.g. | ||
| 58 | touchscreen debugging).</p></li> | ||
| 59 | <li class="listitem"><p><span class="emphasis"><em>nfs-server:</em></span> Installs an NFS server.</p></li> | ||
| 60 | <li class="listitem"><p><span class="emphasis"><em>dev-pkgs:</em></span> Installs development packages (headers and | ||
| 61 | extra library links) for all packages installed in a given image.</p></li> | ||
| 62 | <li class="listitem"><p><span class="emphasis"><em>staticdev-pkgs:</em></span> Installs static development | ||
| 63 | packages (i.e. static libraries containing <code class="filename">*.a</code> files) for all | ||
| 64 | packages installed in a given image.</p></li> | ||
| 65 | <li class="listitem"><p><span class="emphasis"><em>dbg-pkgs:</em></span> Installs debug symbol packages for all packages | ||
| 66 | installed in a given image.</p></li> | ||
| 67 | <li class="listitem"><p><span class="emphasis"><em>doc-pkgs:</em></span> Installs documentation packages for all packages | ||
| 68 | installed in a given image.</p></li> | ||
| 69 | </ul></div> | ||
| 70 | <p> | ||
| 71 | </p> | ||
| 72 | </div></body> | ||
| 73 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-features-machine.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-features-machine.html new file mode 100644 index 0000000000..428aca3973 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-features-machine.html | |||
| @@ -0,0 +1,63 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>9.2. Machine</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-features.html" title="Chapter 9. Reference: Features"> | ||
| 9 | <link rel="prev" href="ref-features-distro.html" title="9.1. Distro"> | ||
| 10 | <link rel="next" href="ref-features-image.html" title="9.3. Images"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="9.2. Machine"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-features-machine"></a>9.2. Machine</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | The items below are features you can use with | ||
| 17 | <a class="link" href="ref-variables-glos.html#var-MACHINE_FEATURES" title="MACHINE_FEATURES"><code class="filename">MACHINE_FEATURES</code></a>. | ||
| 18 | Features do not have a one-to-one correspondence to packages, and they can | ||
| 19 | go beyond simply controlling the installation of a package or packages. | ||
| 20 | Sometimes a feature can influence how certain recipes are built. | ||
| 21 | For example, a feature might determine whether a particular configure option | ||
| 22 | is specified within <code class="filename">do_configure</code> for a particular | ||
| 23 | recipe. | ||
| 24 | </p> | ||
| 25 | <p> | ||
| 26 | This feature list only represents features as shipped with the Yocto Project metadata: | ||
| 27 | </p> | ||
| 28 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 29 | <li class="listitem"><p><span class="emphasis"><em>acpi:</em></span> Hardware has ACPI (x86/x86_64 only) | ||
| 30 | </p></li> | ||
| 31 | <li class="listitem"><p><span class="emphasis"><em>alsa:</em></span> Hardware has ALSA audio drivers | ||
| 32 | </p></li> | ||
| 33 | <li class="listitem"><p><span class="emphasis"><em>apm:</em></span> Hardware uses APM (or APM emulation) | ||
| 34 | </p></li> | ||
| 35 | <li class="listitem"><p><span class="emphasis"><em>bluetooth:</em></span> Hardware has integrated BT | ||
| 36 | </p></li> | ||
| 37 | <li class="listitem"><p><span class="emphasis"><em>ext2:</em></span> Hardware HDD or Microdrive | ||
| 38 | </p></li> | ||
| 39 | <li class="listitem"><p><span class="emphasis"><em>irda:</em></span> Hardware has Irda support | ||
| 40 | </p></li> | ||
| 41 | <li class="listitem"><p><span class="emphasis"><em>keyboard:</em></span> Hardware has a keyboard | ||
| 42 | </p></li> | ||
| 43 | <li class="listitem"><p><span class="emphasis"><em>pci:</em></span> Hardware has a PCI bus | ||
| 44 | </p></li> | ||
| 45 | <li class="listitem"><p><span class="emphasis"><em>pcmcia:</em></span> Hardware has PCMCIA or CompactFlash sockets | ||
| 46 | </p></li> | ||
| 47 | <li class="listitem"><p><span class="emphasis"><em>screen:</em></span> Hardware has a screen | ||
| 48 | </p></li> | ||
| 49 | <li class="listitem"><p><span class="emphasis"><em>serial:</em></span> Hardware has serial support (usually RS232) | ||
| 50 | </p></li> | ||
| 51 | <li class="listitem"><p><span class="emphasis"><em>touchscreen:</em></span> Hardware has a touchscreen | ||
| 52 | </p></li> | ||
| 53 | <li class="listitem"><p><span class="emphasis"><em>usbgadget:</em></span> Hardware is USB gadget device capable | ||
| 54 | </p></li> | ||
| 55 | <li class="listitem"><p><span class="emphasis"><em>usbhost:</em></span> Hardware is USB Host capable | ||
| 56 | </p></li> | ||
| 57 | <li class="listitem"><p><span class="emphasis"><em>wifi:</em></span> Hardware has integrated WiFi | ||
| 58 | </p></li> | ||
| 59 | </ul></div> | ||
| 60 | <p> | ||
| 61 | </p> | ||
| 62 | </div></body> | ||
| 63 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-features.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-features.html new file mode 100644 index 0000000000..c10c49cb19 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-features.html | |||
| @@ -0,0 +1,60 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 9. Reference: Features</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="ref-images.html" title="Chapter 8. Images"> | ||
| 10 | <link rel="next" href="ref-features-distro.html" title="9.1. Distro"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 9. Reference: Features"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="ref-features"></a>Chapter 9. Reference: Features</h2></div></div></div> | ||
| 15 | <div class="toc"> | ||
| 16 | <p><b>Table of Contents</b></p> | ||
| 17 | <dl> | ||
| 18 | <dt><span class="section"><a href="ref-features-distro.html">9.1. Distro</a></span></dt> | ||
| 19 | <dt><span class="section"><a href="ref-features-machine.html">9.2. Machine</a></span></dt> | ||
| 20 | <dt><span class="section"><a href="ref-features-image.html">9.3. Images</a></span></dt> | ||
| 21 | <dt><span class="section"><a href="ref-features-backfill.html">9.4. Feature Backfilling</a></span></dt> | ||
| 22 | </dl> | ||
| 23 | </div> | ||
| 24 | <p> | ||
| 25 | Features provide a mechanism for working out which packages | ||
| 26 | should be included in the generated images. | ||
| 27 | Distributions can select which features they want to support through the | ||
| 28 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-DISTRO_FEATURES" title="DISTRO_FEATURES">DISTRO_FEATURES</a></code> | ||
| 29 | variable, which is set in the <code class="filename">poky.conf</code> distribution configuration file. | ||
| 30 | Machine features are set in the | ||
| 31 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_FEATURES" title="MACHINE_FEATURES">MACHINE_FEATURES</a></code> | ||
| 32 | variable, which is set in the machine configuration file and | ||
| 33 | specifies the hardware features for a given machine. | ||
| 34 | </p> | ||
| 35 | <p> | ||
| 36 | These two variables combine to work out which kernel modules, | ||
| 37 | utilities, and other packages to include. | ||
| 38 | A given distribution can support a selected subset of features so some machine features might not | ||
| 39 | be included if the distribution itself does not support them. | ||
| 40 | </p> | ||
| 41 | <p> | ||
| 42 | One method you can use to determine which recipes are checking to see if a | ||
| 43 | particular feature is contained or not is to <code class="filename">grep</code> through | ||
| 44 | the metadata for the feature. | ||
| 45 | Here is an example that discovers the recipes whose build is potentially | ||
| 46 | changed based on a given feature: | ||
| 47 | </p> | ||
| 48 | <pre class="literallayout"> | ||
| 49 | $ cd $HOME/poky | ||
| 50 | $ git grep 'contains.*MACHINE_FEATURES.*<feature>' | ||
| 51 | </pre> | ||
| 52 | <p> | ||
| 53 | </p> | ||
| 54 | <p> | ||
| 55 | This chapter provides a reference of shipped machine and distro features | ||
| 56 | you can include as part of the image, a reference on image types you can | ||
| 57 | build, and a reference on feature backfilling. | ||
| 58 | </p> | ||
| 59 | </div></body> | ||
| 60 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-images.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-images.html new file mode 100644 index 0000000000..81ed4ba8f2 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-images.html | |||
| @@ -0,0 +1,137 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 8. Images</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="ref-classes-others.html" title="7.21. Other Classes"> | ||
| 10 | <link rel="next" href="ref-features.html" title="Chapter 9. Reference: Features"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 8. Images"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="ref-images"></a>Chapter 8. Images</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | The OpenEmbedded build process supports several types of images to satisfy different needs. | ||
| 17 | When you issue the <code class="filename">bitbake</code> command you provide a “top-level” recipe | ||
| 18 | that essentially begins the build for the type of image you want. | ||
| 19 | </p> | ||
| 20 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 21 | <h3 class="title">Note</h3> | ||
| 22 | Building an image without GNU General Public License Version 3 (GPLv3) components | ||
| 23 | is only supported for minimal and base images. | ||
| 24 | Furthermore, if you are going to build an image using non-GPLv3 components, | ||
| 25 | you must make the following changes in the <code class="filename">local.conf</code> file | ||
| 26 | before using the BitBake command to build the minimal or base image: | ||
| 27 | <pre class="literallayout"> | ||
| 28 | 1. Comment out the EXTRA_IMAGE_FEATURES line | ||
| 29 | 2. Set INCOMPATIBLE_LICENSE = "GPLv3" | ||
| 30 | </pre> | ||
| 31 | </div> | ||
| 32 | <p> | ||
| 33 | From within the <code class="filename">poky</code> Git repository, use the following command to list | ||
| 34 | the supported images: | ||
| 35 | </p> | ||
| 36 | <pre class="literallayout"> | ||
| 37 | $ ls meta*/recipes*/images/*.bb | ||
| 38 | </pre> | ||
| 39 | <p> | ||
| 40 | These recipes reside in the <code class="filename">meta/recipes-core/images</code>, | ||
| 41 | <code class="filename">meta/recipes-extended/images</code>, | ||
| 42 | <code class="filename">meta/recipes-graphics/images</code>, and | ||
| 43 | <code class="filename">meta/recipes-sato/images</code> directories | ||
| 44 | within the <a class="link" href="../dev-manual/source-directory.html" target="_self">source directory</a>. | ||
| 45 | Although the recipe names are somewhat explanatory, here is a list that describes them: | ||
| 46 | </p> | ||
| 47 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 48 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-base</code>:</em></span> | ||
| 49 | A console-only image that fully supports the target device hardware.</p></li> | ||
| 50 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-minimal</code>:</em></span> | ||
| 51 | A small image just capable of allowing a device to boot.</p></li> | ||
| 52 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-minimal-dev</code>:</em></span> | ||
| 53 | A <code class="filename">core-image-minimal</code> image suitable for development work | ||
| 54 | using the host. | ||
| 55 | The image includes headers and libraries you can use in a host development | ||
| 56 | environment. | ||
| 57 | </p></li> | ||
| 58 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-minimal-initramfs</code>:</em></span> | ||
| 59 | A <code class="filename">core-image-minimal</code> image that has the Minimal RAM-based | ||
| 60 | Initial Root Filesystem (<code class="filename">initramfs</code>) as part of the kernel, | ||
| 61 | which allows the system to find the first “init” program more efficiently. | ||
| 62 | </p></li> | ||
| 63 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-minimal-mtdutils</code>:</em></span> | ||
| 64 | A <code class="filename">core-image-minimal</code> image that has support | ||
| 65 | for the Minimal MTD Utilities, which let the user interact with the | ||
| 66 | MTD subsystem in the kernel to perform operations on flash devices. | ||
| 67 | </p></li> | ||
| 68 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-x11</code>:</em></span> | ||
| 69 | A very basic X11 image with a terminal. | ||
| 70 | </p></li> | ||
| 71 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-basic</code>:</em></span> | ||
| 72 | A console-only image with more full-featured Linux system | ||
| 73 | functionality installed.</p></li> | ||
| 74 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-lsb</code>:</em></span> | ||
| 75 | An image that conforms to the Linux Standard Base (LSB) specification.</p></li> | ||
| 76 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-lsb-dev</code>:</em></span> | ||
| 77 | A <code class="filename">core-image-lsb</code> image that is suitable for development work | ||
| 78 | using the host. | ||
| 79 | The image includes headers and libraries you can use in a host development | ||
| 80 | environment. | ||
| 81 | </p></li> | ||
| 82 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-lsb-sdk</code>:</em></span> | ||
| 83 | A <code class="filename">core-image-lsb</code> that includes everything in meta-toolchain | ||
| 84 | but also includes development headers and libraries to form a complete standalone SDK. | ||
| 85 | This image is suitable for development using the target.</p></li> | ||
| 86 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-clutter</code>:</em></span> | ||
| 87 | An image with support for the Open GL-based toolkit Clutter, which enables development of | ||
| 88 | rich and animated graphical user interfaces.</p></li> | ||
| 89 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-sato</code>:</em></span> | ||
| 90 | An image with Sato support, a mobile environment and visual style that works well | ||
| 91 | with mobile devices. | ||
| 92 | The image supports X11 with a Sato theme and applications such as | ||
| 93 | a terminal, editor, file manager, media player, and so forth.</p></li> | ||
| 94 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-sato-dev</code>:</em></span> | ||
| 95 | A <code class="filename">core-image-sato</code> image suitable for development | ||
| 96 | using the host. | ||
| 97 | The image includes libraries needed to build applications on the device itself, | ||
| 98 | testing and profiling tools, and debug symbols. | ||
| 99 | This image was formerly <code class="filename">core-image-sdk</code>.</p></li> | ||
| 100 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-sato-sdk</code>:</em></span> | ||
| 101 | A <code class="filename">core-image-sato</code> image that includes everything in meta-toolchain. | ||
| 102 | The image also includes development headers and libraries to form a complete standalone SDK | ||
| 103 | and is suitable for development using the target.</p></li> | ||
| 104 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-rt</code>:</em></span> | ||
| 105 | A <code class="filename">core-image-minimal</code> image plus a real-time test suite and | ||
| 106 | tools appropriate for real-time use.</p></li> | ||
| 107 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-rt-sdk</code>:</em></span> | ||
| 108 | A <code class="filename">core-image-rt</code> image that includes everything in | ||
| 109 | <code class="filename">meta-toolchain</code>. | ||
| 110 | The image also includes development headers and libraries to form a complete | ||
| 111 | stand-alone SDK and is suitable for development using the target.</p></li> | ||
| 112 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-gtk-directfb</code>:</em></span> | ||
| 113 | An image that uses <code class="filename">gtk+</code> over <code class="filename">directfb</code> | ||
| 114 | instead of X11. | ||
| 115 | In order to build, this image requires specific distro configuration that enables | ||
| 116 | <code class="filename">gtk</code> over <code class="filename">directfb</code>.</p></li> | ||
| 117 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">build-appliance-image</code>:</em></span> | ||
| 118 | An image you can boot and run using either the | ||
| 119 | <a class="ulink" href="http://www.vmware.com/products/player/overview.html" target="_self">VMware Player</a> | ||
| 120 | or <a class="ulink" href="http://www.vmware.com/products/workstation/overview.html" target="_self">VMware Workstation</a>. | ||
| 121 | For more information on this image, see the | ||
| 122 | <a class="ulink" href="http://www.yoctoproject.org/documentation/build-appliance" target="_self">Build Appliance</a> page on | ||
| 123 | the Yocto Project website.</p></li> | ||
| 124 | </ul></div> | ||
| 125 | <div class="tip" title="Tip" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 126 | <h3 class="title">Tip</h3> | ||
| 127 | From the Yocto Project release 1.1 onwards, <code class="filename">-live</code> and | ||
| 128 | <code class="filename">-directdisk</code> images have been replaced by a "live" | ||
| 129 | option in <code class="filename">IMAGE_FSTYPES</code> that will work with any image to produce an | ||
| 130 | image file that can be | ||
| 131 | copied directly to a CD or USB device and run as is. | ||
| 132 | To build a live image, simply add | ||
| 133 | "live" to <code class="filename">IMAGE_FSTYPES</code> within the <code class="filename">local.conf</code> | ||
| 134 | file or wherever appropriate and then build the desired image as normal. | ||
| 135 | </div> | ||
| 136 | </div></body> | ||
| 137 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-structure.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-structure.html new file mode 100644 index 0000000000..afc8334ebd --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-structure.html | |||
| @@ -0,0 +1,98 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 5. Source Directory Structure</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="migration-1.3-removed-recipes.html" title="4.1.2.6. Removed Recipes"> | ||
| 10 | <link rel="next" href="structure-core.html" title="5.1. Top level core components"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 5. Source Directory Structure"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="ref-structure"></a>Chapter 5. Source Directory Structure</h2></div></div></div> | ||
| 15 | <div class="toc"> | ||
| 16 | <p><b>Table of Contents</b></p> | ||
| 17 | <dl> | ||
| 18 | <dt><span class="section"><a href="structure-core.html">5.1. Top level core components</a></span></dt> | ||
| 19 | <dd><dl> | ||
| 20 | <dt><span class="section"><a href="structure-core-bitbake.html">5.1.1. <code class="filename">bitbake/</code></a></span></dt> | ||
| 21 | <dt><span class="section"><a href="structure-core-build.html">5.1.2. <code class="filename">build/</code></a></span></dt> | ||
| 22 | <dt><span class="section"><a href="handbook.html">5.1.3. <code class="filename">documentation</code></a></span></dt> | ||
| 23 | <dt><span class="section"><a href="structure-core-meta.html">5.1.4. <code class="filename">meta/</code></a></span></dt> | ||
| 24 | <dt><span class="section"><a href="structure-core-meta-yocto.html">5.1.5. <code class="filename">meta-yocto/</code></a></span></dt> | ||
| 25 | <dt><span class="section"><a href="structure-core-meta-yocto-bsp.html">5.1.6. <code class="filename">meta-yocto-bsp/</code></a></span></dt> | ||
| 26 | <dt><span class="section"><a href="structure-meta-hob.html">5.1.7. <code class="filename">meta-hob/</code></a></span></dt> | ||
| 27 | <dt><span class="section"><a href="structure-meta-skeleton.html">5.1.8. <code class="filename">meta-skeleton/</code></a></span></dt> | ||
| 28 | <dt><span class="section"><a href="structure-core-scripts.html">5.1.9. <code class="filename">scripts/</code></a></span></dt> | ||
| 29 | <dt><span class="section"><a href="structure-core-script.html">5.1.10. <code class="filename">oe-init-build-env</code></a></span></dt> | ||
| 30 | <dt><span class="section"><a href="structure-basic-top-level.html">5.1.11. <code class="filename">LICENSE, README, and README.hardware</code></a></span></dt> | ||
| 31 | </dl></dd> | ||
| 32 | <dt><span class="section"><a href="structure-build.html">5.2. The Build Directory - <code class="filename">build/</code></a></span></dt> | ||
| 33 | <dd><dl> | ||
| 34 | <dt><span class="section"><a href="structure-build-pseudodone.html">5.2.1. <code class="filename">build/pseudodone</code></a></span></dt> | ||
| 35 | <dt><span class="section"><a href="structure-build-conf-local.conf.html">5.2.2. <code class="filename">build/conf/local.conf</code></a></span></dt> | ||
| 36 | <dt><span class="section"><a href="structure-build-conf-bblayers.conf.html">5.2.3. <code class="filename">build/conf/bblayers.conf</code></a></span></dt> | ||
| 37 | <dt><span class="section"><a href="structure-build-conf-sanity_info.html">5.2.4. <code class="filename">build/conf/sanity_info</code></a></span></dt> | ||
| 38 | <dt><span class="section"><a href="structure-build-downloads.html">5.2.5. <code class="filename">build/downloads/</code></a></span></dt> | ||
| 39 | <dt><span class="section"><a href="structure-build-sstate-cache.html">5.2.6. <code class="filename">build/sstate-cache/</code></a></span></dt> | ||
| 40 | <dt><span class="section"><a href="structure-build-tmp.html">5.2.7. <code class="filename">build/tmp/</code></a></span></dt> | ||
| 41 | <dt><span class="section"><a href="structure-build-tmp-buildstats.html">5.2.8. <code class="filename">build/tmp/buildstats/</code></a></span></dt> | ||
| 42 | <dt><span class="section"><a href="structure-build-tmp-cache.html">5.2.9. <code class="filename">build/tmp/cache/</code></a></span></dt> | ||
| 43 | <dt><span class="section"><a href="structure-build-tmp-deploy.html">5.2.10. <code class="filename">build/tmp/deploy/</code></a></span></dt> | ||
| 44 | <dt><span class="section"><a href="structure-build-tmp-deploy-deb.html">5.2.11. <code class="filename">build/tmp/deploy/deb/</code></a></span></dt> | ||
| 45 | <dt><span class="section"><a href="structure-build-tmp-deploy-rpm.html">5.2.12. <code class="filename">build/tmp/deploy/rpm/</code></a></span></dt> | ||
| 46 | <dt><span class="section"><a href="structure-build-tmp-deploy-licenses.html">5.2.13. <code class="filename">build/tmp/deploy/licenses/</code></a></span></dt> | ||
| 47 | <dt><span class="section"><a href="structure-build-tmp-deploy-images.html">5.2.14. <code class="filename">build/tmp/deploy/images/</code></a></span></dt> | ||
| 48 | <dt><span class="section"><a href="structure-build-tmp-deploy-ipk.html">5.2.15. <code class="filename">build/tmp/deploy/ipk/</code></a></span></dt> | ||
| 49 | <dt><span class="section"><a href="structure-build-tmp-sysroots.html">5.2.16. <code class="filename">build/tmp/sysroots/</code></a></span></dt> | ||
| 50 | <dt><span class="section"><a href="structure-build-tmp-stamps.html">5.2.17. <code class="filename">build/tmp/stamps/</code></a></span></dt> | ||
| 51 | <dt><span class="section"><a href="structure-build-tmp-log.html">5.2.18. <code class="filename">build/tmp/log/</code></a></span></dt> | ||
| 52 | <dt><span class="section"><a href="structure-build-tmp-pkgdata.html">5.2.19. <code class="filename">build/tmp/pkgdata/</code></a></span></dt> | ||
| 53 | <dt><span class="section"><a href="structure-build-tmp-work.html">5.2.20. <code class="filename">build/tmp/work/</code></a></span></dt> | ||
| 54 | </dl></dd> | ||
| 55 | <dt><span class="section"><a href="structure-meta.html">5.3. The Metadata - <code class="filename">meta/</code></a></span></dt> | ||
| 56 | <dd><dl> | ||
| 57 | <dt><span class="section"><a href="structure-meta-classes.html">5.3.1. <code class="filename">meta/classes/</code></a></span></dt> | ||
| 58 | <dt><span class="section"><a href="structure-meta-conf.html">5.3.2. <code class="filename">meta/conf/</code></a></span></dt> | ||
| 59 | <dt><span class="section"><a href="structure-meta-conf-machine.html">5.3.3. <code class="filename">meta/conf/machine/</code></a></span></dt> | ||
| 60 | <dt><span class="section"><a href="structure-meta-conf-distro.html">5.3.4. <code class="filename">meta/conf/distro/</code></a></span></dt> | ||
| 61 | <dt><span class="section"><a href="structure-meta-recipes-bsp.html">5.3.5. <code class="filename">meta/recipes-bsp/</code></a></span></dt> | ||
| 62 | <dt><span class="section"><a href="structure-meta-recipes-connectivity.html">5.3.6. <code class="filename">meta/recipes-connectivity/</code></a></span></dt> | ||
| 63 | <dt><span class="section"><a href="structure-meta-recipes-core.html">5.3.7. <code class="filename">meta/recipes-core/</code></a></span></dt> | ||
| 64 | <dt><span class="section"><a href="structure-meta-recipes-devtools.html">5.3.8. <code class="filename">meta/recipes-devtools/</code></a></span></dt> | ||
| 65 | <dt><span class="section"><a href="structure-meta-recipes-extended.html">5.3.9. <code class="filename">meta/recipes-extended/</code></a></span></dt> | ||
| 66 | <dt><span class="section"><a href="structure-meta-recipes-gnome.html">5.3.10. <code class="filename">meta/recipes-gnome/</code></a></span></dt> | ||
| 67 | <dt><span class="section"><a href="structure-meta-recipes-graphics.html">5.3.11. <code class="filename">meta/recipes-graphics/</code></a></span></dt> | ||
| 68 | <dt><span class="section"><a href="structure-meta-recipes-kernel.html">5.3.12. <code class="filename">meta/recipes-kernel/</code></a></span></dt> | ||
| 69 | <dt><span class="section"><a href="structure-meta-recipes-multimedia.html">5.3.13. <code class="filename">meta/recipes-multimedia/</code></a></span></dt> | ||
| 70 | <dt><span class="section"><a href="structure-meta-recipes-qt.html">5.3.14. <code class="filename">meta/recipes-qt/</code></a></span></dt> | ||
| 71 | <dt><span class="section"><a href="structure-meta-recipes-rt.html">5.3.15. <code class="filename">meta/recipes-rt/</code></a></span></dt> | ||
| 72 | <dt><span class="section"><a href="structure-meta-recipes-sato.html">5.3.16. <code class="filename">meta/recipes-sato/</code></a></span></dt> | ||
| 73 | <dt><span class="section"><a href="structure-meta-recipes-support.html">5.3.17. <code class="filename">meta/recipes-support/</code></a></span></dt> | ||
| 74 | <dt><span class="section"><a href="structure-meta-site.html">5.3.18. <code class="filename">meta/site/</code></a></span></dt> | ||
| 75 | <dt><span class="section"><a href="structure-meta-recipes-txt.html">5.3.19. <code class="filename">meta/recipes.txt</code></a></span></dt> | ||
| 76 | </dl></dd> | ||
| 77 | </dl> | ||
| 78 | </div> | ||
| 79 | <p> | ||
| 80 | The <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a> consists of several components. | ||
| 81 | Understanding them and knowing where they are located is key to using the Yocto Project well. | ||
| 82 | This chapter describes the Source Directory and gives information about the various | ||
| 83 | files and directories. | ||
| 84 | </p> | ||
| 85 | <p> | ||
| 86 | For information on how to establish a local Source Directory on your development system, see the | ||
| 87 | "<a class="link" href="../dev-manual/getting-setup.html" target="_self">Getting Set Up</a>" | ||
| 88 | section in the Yocto Project Development Manual. | ||
| 89 | </p> | ||
| 90 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 91 | <h3 class="title">Note</h3> | ||
| 92 | The OpenEmbedded build system does not support file or directory names that | ||
| 93 | contain spaces. | ||
| 94 | Be sure that the Source Directory you use does not contain these types | ||
| 95 | of names. | ||
| 96 | </div> | ||
| 97 | </div></body> | ||
| 98 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-variables-glos.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-variables-glos.html new file mode 100644 index 0000000000..bb6374fab7 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-variables-glos.html | |||
| @@ -0,0 +1,2800 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 10. Variables Glossary</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="ref-features-backfill.html" title="9.4. Feature Backfilling"> | ||
| 10 | <link rel="next" href="ref-varlocality.html" title="Chapter 11. Variable Context"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 10. Variables Glossary"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="ref-variables-glos"></a>Chapter 10. Variables Glossary</h2></div></div></div> | ||
| 15 | <div class="toc"> | ||
| 16 | <p><b>Table of Contents</b></p> | ||
| 17 | <dl><dt><span class="glossary"><a href="ref-variables-glos.html#ref-variables-glossary">Glossary</a></span></dt></dl> | ||
| 18 | </div> | ||
| 19 | <p> | ||
| 20 | This chapter lists common variables used in the OpenEmbedded build system and gives an overview | ||
| 21 | of their function and contents. | ||
| 22 | </p> | ||
| 23 | <div class="glossary" title="Glossary"> | ||
| 24 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 25 | <a name="ref-variables-glossary"></a>Glossary</h2></div></div></div> | ||
| 26 | <p> | ||
| 27 | <a class="link" href="ref-variables-glos.html#var-ALLOW_EMPTY" title="ALLOW_EMPTY">A</a> | ||
| 28 | <a class="link" href="ref-variables-glos.html#var-B" title="B">B</a> | ||
| 29 | <a class="link" href="ref-variables-glos.html#var-CFLAGS" title="CFLAGS">C</a> | ||
| 30 | <a class="link" href="ref-variables-glos.html#var-D" title="D">D</a> | ||
| 31 | <a class="link" href="ref-variables-glos.html#var-ENABLE_BINARY_LOCALE_GENERATION" title="ENABLE_BINARY_LOCALE_GENERATION">E</a> | ||
| 32 | <a class="link" href="ref-variables-glos.html#var-FILES" title="FILES">F</a> | ||
| 33 | |||
| 34 | <a class="link" href="ref-variables-glos.html#var-HOMEPAGE" title="HOMEPAGE">H</a> | ||
| 35 | <a class="link" href="ref-variables-glos.html#var-IMAGE_FEATURES" title="IMAGE_FEATURES">I</a> | ||
| 36 | |||
| 37 | <a class="link" href="ref-variables-glos.html#var-KBRANCH" title="KBRANCH">K</a> | ||
| 38 | <a class="link" href="ref-variables-glos.html#var-LAYERDIR" title="LAYERDIR">L</a> | ||
| 39 | <a class="link" href="ref-variables-glos.html#var-MACHINE" title="MACHINE">M</a> | ||
| 40 | |||
| 41 | <a class="link" href="ref-variables-glos.html#var-OE_TERMINAL" title="OE_TERMINAL">O</a> | ||
| 42 | <a class="link" href="ref-variables-glos.html#var-P" title="P">P</a> | ||
| 43 | |||
| 44 | <a class="link" href="ref-variables-glos.html#var-RCONFLICTS" title="RCONFLICTS">R</a> | ||
| 45 | <a class="link" href="ref-variables-glos.html#var-S" title="S">S</a> | ||
| 46 | <a class="link" href="ref-variables-glos.html#var-T" title="T">T</a> | ||
| 47 | |||
| 48 | |||
| 49 | <a class="link" href="ref-variables-glos.html#var-WORKDIR" title="WORKDIR">W</a> | ||
| 50 | |||
| 51 | |||
| 52 | |||
| 53 | </p> | ||
| 54 | <div class="glossdiv" title="A"> | ||
| 55 | <h3 class="title">A</h3> | ||
| 56 | <dl> | ||
| 57 | <dt> | ||
| 58 | <a name="var-ALLOW_EMPTY"></a>ALLOW_EMPTY</dt> | ||
| 59 | <dd> | ||
| 60 | <p> | ||
| 61 | Specifies if an output package should still be produced if it is empty. | ||
| 62 | By default, BitBake does not produce empty packages. | ||
| 63 | This default behavior can cause issues when there is an | ||
| 64 | <a class="link" href="ref-variables-glos.html#var-RDEPENDS" title="RDEPENDS"><code class="filename">RDEPENDS</code></a> or | ||
| 65 | some other runtime hard-requirement on the existence of the package. | ||
| 66 | </p> | ||
| 67 | <p> | ||
| 68 | Like all package-controlling variables, you must always use them in | ||
| 69 | conjunction with a package name override. | ||
| 70 | Here is an example: | ||
| 71 | </p> | ||
| 72 | <pre class="literallayout"> | ||
| 73 | ALLOW_EMPTY_${PN} = "1" | ||
| 74 | </pre> | ||
| 75 | <p> | ||
| 76 | </p> | ||
| 77 | </dd> | ||
| 78 | <dt> | ||
| 79 | <a name="var-AUTHOR"></a>AUTHOR</dt> | ||
| 80 | <dd><p>The email address used to contact the original author or authors in | ||
| 81 | order to send patches, forward bugs, etc.</p></dd> | ||
| 82 | <dt> | ||
| 83 | <a name="var-AUTOREV"></a>AUTOREV</dt> | ||
| 84 | <dd> | ||
| 85 | <p>When <code class="filename"><a class="link" href="ref-variables-glos.html#var-SRCREV" title="SRCREV">SRCREV</a></code> | ||
| 86 | is set to the value of this variable, it specifies that the latest | ||
| 87 | source revision in the repository should be used. Here is an example: | ||
| 88 | </p> | ||
| 89 | <pre class="literallayout"> | ||
| 90 | SRCREV = "${AUTOREV}" | ||
| 91 | </pre> | ||
| 92 | <p> | ||
| 93 | </p> | ||
| 94 | </dd> | ||
| 95 | </dl> | ||
| 96 | </div> | ||
| 97 | <div class="glossdiv" title="B"> | ||
| 98 | <h3 class="title">B</h3> | ||
| 99 | <dl> | ||
| 100 | <dt> | ||
| 101 | <a name="var-B"></a>B</dt> | ||
| 102 | <dd> | ||
| 103 | <p> | ||
| 104 | The <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>. | ||
| 105 | The OpenEmbedded build system places generated objects into the Build Directory | ||
| 106 | during a recipe's build process. | ||
| 107 | By default, this directory is the same as the <a class="link" href="ref-variables-glos.html#var-S" title="S"><code class="filename">S</code></a> | ||
| 108 | directory: | ||
| 109 | </p> | ||
| 110 | <pre class="literallayout"> | ||
| 111 | B = ${WORKDIR}/${BPN}-{PV}/ | ||
| 112 | </pre> | ||
| 113 | <p> | ||
| 114 | You can separate the (<code class="filename">S</code>) directory and the directory pointed to | ||
| 115 | by the <code class="filename">B</code> variable. | ||
| 116 | Most autotools-based recipes support separating these directories. | ||
| 117 | The build system defaults to using separate directories for <code class="filename">gcc</code> | ||
| 118 | and some kernel recipes. | ||
| 119 | </p> | ||
| 120 | </dd> | ||
| 121 | <dt> | ||
| 122 | <a name="var-BAD_RECOMMENDATIONS"></a>BAD_RECOMMENDATIONS</dt> | ||
| 123 | <dd><p> | ||
| 124 | A list of packages not to install despite being recommended by a recipe. | ||
| 125 | Support for this variable exists only when using the | ||
| 126 | <code class="filename">ipk</code> packaging backend. | ||
| 127 | </p></dd> | ||
| 128 | <dt> | ||
| 129 | <a name="var-BB_DISKMON_DIRS"></a>BB_DISKMON_DIRS</dt> | ||
| 130 | <dd> | ||
| 131 | <p> | ||
| 132 | Monitors disk space and available inodes during the build | ||
| 133 | and allows you to control the build based on these | ||
| 134 | parameters. | ||
| 135 | </p> | ||
| 136 | <p> | ||
| 137 | Disk space monitoring is disabled by default. | ||
| 138 | To enable monitoring, add the <code class="filename">BB_DISKMON_DIRS</code> | ||
| 139 | variable to your <code class="filename">conf/local.conf</code> file found in the | ||
| 140 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>. | ||
| 141 | Use the following form: | ||
| 142 | </p> | ||
| 143 | <pre class="literallayout"> | ||
| 144 | BB_DISKMON_DIRS = "<action>,<dir>,<threshold> [...]" | ||
| 145 | |||
| 146 | where: | ||
| 147 | |||
| 148 | <action> is: | ||
| 149 | ABORT: Immediately abort the build when | ||
| 150 | a threshold is broken. | ||
| 151 | STOPTASKS: Stop the build after the currently | ||
| 152 | executing tasks have finished when | ||
| 153 | a threshold is broken. | ||
| 154 | WARN: Issue a warning but continue the | ||
| 155 | build when a threshold is broken. | ||
| 156 | Subsequent warnings are issued as | ||
| 157 | defined by the | ||
| 158 | <a class="link" href="ref-variables-glos.html#var-BB_DISKMON_WARNINTERVAL" title="BB_DISKMON_WARNINTERVAL">BB_DISKMON_WARNINTERVAL</a> variable, | ||
| 159 | which must be defined in the | ||
| 160 | conf/local.conf file. | ||
| 161 | |||
| 162 | <dir> is: | ||
| 163 | Any directory you choose. You can specify one or | ||
| 164 | more directories to monitor by separating the | ||
| 165 | groupings with a space. If two directories are | ||
| 166 | on the same device, only the first directory | ||
| 167 | is monitored. | ||
| 168 | |||
| 169 | <threshold> is: | ||
| 170 | Either the minimum available disk space, | ||
| 171 | the minimum number of free inodes, or | ||
| 172 | both. You must specify at least one. To | ||
| 173 | omit one or the other, simply omit the value. | ||
| 174 | Specify the threshold using G, M, K for Gbytes, | ||
| 175 | Mbytes, and Kbytes, respectively. If you do | ||
| 176 | not specify G, M, or K, Kbytes is assumed by | ||
| 177 | default. Do not use GB, MB, or KB. | ||
| 178 | </pre> | ||
| 179 | <p> | ||
| 180 | </p> | ||
| 181 | <p> | ||
| 182 | Here are some examples: | ||
| 183 | </p> | ||
| 184 | <pre class="literallayout"> | ||
| 185 | BB_DISKMON_DIRS = "ABORT,${TMPDIR},1G,100K WARN,${SSTATE_DIR},1G,100K" | ||
| 186 | BB_DISKMON_DIRS = "STOPTASKS,${TMPDIR},1G" | ||
| 187 | BB_DISKMON_DIRS = "ABORT,${TMPDIR},,100K" | ||
| 188 | </pre> | ||
| 189 | <p> | ||
| 190 | The first example works only if you also provide | ||
| 191 | the <a class="link" href="ref-variables-glos.html#var-BB_DISKMON_WARNINTERVAL" title="BB_DISKMON_WARNINTERVAL"><code class="filename">BB_DISKMON_WARNINTERVAL</code></a> variable | ||
| 192 | in the <code class="filename">conf/local.conf</code>. | ||
| 193 | This example causes the build system to immediately | ||
| 194 | abort when either the disk space in <code class="filename">${TMPDIR}</code> drops | ||
| 195 | below 1 Gbyte or the available free inodes drops below | ||
| 196 | 100 Kbytes. | ||
| 197 | Because two directories are provided with the variable, the | ||
| 198 | build system also issue a | ||
| 199 | warning when the disk space in the | ||
| 200 | <code class="filename">${SSTATE_DIR}</code> directory drops | ||
| 201 | below 1 Gbyte or the number of free inodes drops | ||
| 202 | below 100 Kbytes. | ||
| 203 | Subsequent warnings are issued during intervals as | ||
| 204 | defined by the <code class="filename">BB_DISKMON_WARNINTERVAL</code> | ||
| 205 | variable. | ||
| 206 | </p> | ||
| 207 | <p> | ||
| 208 | The second example stops the build after all currently | ||
| 209 | executing tasks complete when the minimum disk space | ||
| 210 | in the <code class="filename">${TMPDIR}</code> directory drops | ||
| 211 | below 1 Gbyte. | ||
| 212 | No disk monitoring occurs for the free inodes in this case. | ||
| 213 | </p> | ||
| 214 | <p> | ||
| 215 | The final example immediately aborts the build when the | ||
| 216 | number of free inodes in the <code class="filename">${TMPDIR}</code> directory | ||
| 217 | drops below 100 Kbytes. | ||
| 218 | No disk space monitoring for the directory itself occurs | ||
| 219 | in this case. | ||
| 220 | </p> | ||
| 221 | </dd> | ||
| 222 | <dt> | ||
| 223 | <a name="var-BB_DISKMON_WARNINTERVAL"></a>BB_DISKMON_WARNINTERVAL</dt> | ||
| 224 | <dd> | ||
| 225 | <p> | ||
| 226 | Defines the disk space and free inode warning intervals. | ||
| 227 | To set these intervals, define the variable in your | ||
| 228 | <code class="filename">conf/local.conf</code> file in the | ||
| 229 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>. | ||
| 230 | </p> | ||
| 231 | <p> | ||
| 232 | If you are going to use the | ||
| 233 | <code class="filename">BB_DISKMON_WARNINTERVAL</code> variable, you must | ||
| 234 | also use the | ||
| 235 | <a class="link" href="ref-variables-glos.html#var-BB_DISKMON_DIRS" title="BB_DISKMON_DIRS"><code class="filename">BB_DISKMON_DIRS</code></a> variable | ||
| 236 | and define its action as "WARN". | ||
| 237 | During the build, subsequent warnings are issued each time | ||
| 238 | disk space or number of free inodes further reduces by | ||
| 239 | the respective interval. | ||
| 240 | </p> | ||
| 241 | <p> | ||
| 242 | If you do not provide a <code class="filename">BB_DISKMON_WARNINTERVAL</code> | ||
| 243 | variable and you do use <code class="filename">BB_DISKMON_DIRS</code> with | ||
| 244 | the "WARN" action, the disk monitoring interval defaults to | ||
| 245 | the following: | ||
| 246 | </p> | ||
| 247 | <pre class="literallayout"> | ||
| 248 | BB_DISKMON_WARNINTERVAL = "50M,5K" | ||
| 249 | </pre> | ||
| 250 | <p> | ||
| 251 | </p> | ||
| 252 | <p> | ||
| 253 | When specifying the variable in your configuration file, | ||
| 254 | use the following form: | ||
| 255 | </p> | ||
| 256 | <pre class="literallayout"> | ||
| 257 | BB_DISKMON_WARNINTERVAL = "<disk_space_interval>,<disk_inode_interval>" | ||
| 258 | |||
| 259 | where: | ||
| 260 | |||
| 261 | <disk_space_interval> is: | ||
| 262 | An interval of memory expressed in either | ||
| 263 | G, M, or K for Gbytes, Mbytes, or Kbytes, | ||
| 264 | respectively. You cannot use GB, MB, or KB. | ||
| 265 | |||
| 266 | <disk_inode_interval> is: | ||
| 267 | An interval of free inodes expressed in either | ||
| 268 | G, M, or K for Gbytes, Mbytes, or Kbytes, | ||
| 269 | respectively. You cannot use GB, MB, or KB. | ||
| 270 | </pre> | ||
| 271 | <p> | ||
| 272 | </p> | ||
| 273 | <p> | ||
| 274 | Here is an example: | ||
| 275 | </p> | ||
| 276 | <pre class="literallayout"> | ||
| 277 | BB_DISKMON_DIRS = "WARN,${SSTATE_DIR},1G,100K" | ||
| 278 | BB_DISKMON_WARNINTERVAL = "50M,5K" | ||
| 279 | </pre> | ||
| 280 | <p> | ||
| 281 | These variables cause the OpenEmbedded build system to | ||
| 282 | issue subsequent warnings each time the available | ||
| 283 | disk space further reduces by 50 Mbytes or the number | ||
| 284 | of free inodes further reduces by 5 Kbytes in the | ||
| 285 | <code class="filename">${SSTATE_DIR}</code> directory. | ||
| 286 | Subsequent warnings based on the interval occur each time | ||
| 287 | a respective interval is reached beyond the intial warning | ||
| 288 | (i.e. 1 Gbytes and 100 Kbytes). | ||
| 289 | </p> | ||
| 290 | </dd> | ||
| 291 | <dt> | ||
| 292 | <a name="var-BBCLASSEXTEND"></a>BBCLASSEXTEND</dt> | ||
| 293 | <dd> | ||
| 294 | <p> | ||
| 295 | Allows you to extend a recipe so that it builds variants of the software. | ||
| 296 | Common variants for recipes exist such as "natives" like <code class="filename">quilt-native</code>, | ||
| 297 | which is a copy of quilt built to run on the build system; | ||
| 298 | "crosses" such as <code class="filename">gcc-cross</code>, | ||
| 299 | which is a compiler built to run on the build machine but produces binaries | ||
| 300 | that run on the target <a class="link" href="ref-variables-glos.html#var-MACHINE" title="MACHINE"><code class="filename">MACHINE</code></a>; | ||
| 301 | "nativesdk", which targets the SDK machine instead of <code class="filename">MACHINE</code>; | ||
| 302 | and "mulitlibs" in the form "<code class="filename">multilib:<multilib_name></code>". | ||
| 303 | </p> | ||
| 304 | <p> | ||
| 305 | To build a different variant of the recipe with a minimal amount of code, it usually | ||
| 306 | is as simple as adding the following to your recipe: | ||
| 307 | </p> | ||
| 308 | <pre class="literallayout"> | ||
| 309 | BBCLASSEXTEND =+ "native nativesdk" | ||
| 310 | BBCLASSEXTEND =+ "multilib:<multilib_name>" | ||
| 311 | </pre> | ||
| 312 | <p> | ||
| 313 | </p> | ||
| 314 | </dd> | ||
| 315 | <dt> | ||
| 316 | <a name="var-BBMASK"></a>BBMASK</dt> | ||
| 317 | <dd> | ||
| 318 | <p>Prevents BitBake from processing recipes and recipe append files. | ||
| 319 | You can use the <code class="filename">BBMASK</code> variable to "hide" | ||
| 320 | these <code class="filename">.bb</code> and <code class="filename">.bbappend</code> files. | ||
| 321 | BitBake ignores any recipe or recipe append files that match the expression. | ||
| 322 | It is as if BitBake does not see them at all. | ||
| 323 | Consequently, matching files are not parsed or otherwise used by | ||
| 324 | BitBake.</p> | ||
| 325 | <p>The value you provide is passed to python's regular expression compiler. | ||
| 326 | For complete syntax information, see python's documentation at | ||
| 327 | <a class="ulink" href="http://docs.python.org/release/2.3/lib/re-syntax.html" target="_self">http://docs.python.org/release/2.3/lib/re-syntax.html</a>. | ||
| 328 | The expression is compared against the full paths to the files. | ||
| 329 | For example, the following uses a complete regular expression to tell | ||
| 330 | BitBake to ignore all recipe and recipe append files in the | ||
| 331 | <code class="filename">.*/meta-ti/recipes-misc/</code> directory: | ||
| 332 | </p> | ||
| 333 | <pre class="literallayout"> | ||
| 334 | BBMASK = ".*/meta-ti/recipes-misc/" | ||
| 335 | </pre> | ||
| 336 | <p>Use the <code class="filename">BBMASK</code> variable from within the | ||
| 337 | <code class="filename">conf/local.conf</code> file found | ||
| 338 | in the <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>.</p> | ||
| 339 | </dd> | ||
| 340 | <dt> | ||
| 341 | <a name="var-BB_NUMBER_THREADS"></a>BB_NUMBER_THREADS</dt> | ||
| 342 | <dd><p>The maximum number of tasks BitBake should run in parallel at any one time. | ||
| 343 | If your host development system supports multiple cores a good rule of thumb | ||
| 344 | is to set this variable to twice the number of cores.</p></dd> | ||
| 345 | <dt> | ||
| 346 | <a name="var-BBFILE_COLLECTIONS"></a>BBFILE_COLLECTIONS</dt> | ||
| 347 | <dd><p>Lists the names of configured layers. | ||
| 348 | These names are used to find the other <code class="filename">BBFILE_*</code> | ||
| 349 | variables. | ||
| 350 | Typically, each layer will append its name to this variable in its | ||
| 351 | <code class="filename">conf/layer.conf</code> file. | ||
| 352 | </p></dd> | ||
| 353 | <dt> | ||
| 354 | <a name="var-BBFILE_PATTERN"></a>BBFILE_PATTERN</dt> | ||
| 355 | <dd><p>Variable that expands to match files from <code class="filename">BBFILES</code> in a particular layer. | ||
| 356 | This variable is used in the <code class="filename">conf/layer.conf</code> file and must | ||
| 357 | be suffixed with the name of the specific layer (e.g. | ||
| 358 | <code class="filename">BBFILE_PATTERN_emenlow</code>).</p></dd> | ||
| 359 | <dt> | ||
| 360 | <a name="var-BBFILE_PRIORITY"></a>BBFILE_PRIORITY</dt> | ||
| 361 | <dd> | ||
| 362 | <p>Assigns the priority for recipe files in each layer.</p> | ||
| 363 | <p>This variable is useful in situations where the same recipe appears in | ||
| 364 | more than one layer. | ||
| 365 | Setting this variable allows you to prioritize a | ||
| 366 | layer against other layers that contain the same recipe - effectively | ||
| 367 | letting you control the precedence for the multiple layers. | ||
| 368 | The precedence established through this variable stands regardless of a | ||
| 369 | recipe's version (<code class="filename">PV</code> variable). | ||
| 370 | For example, a layer that has a recipe with a higher <code class="filename">PV</code> value but for | ||
| 371 | which the <code class="filename">BBFILE_PRIORITY</code> is set to have a lower precedence still has a | ||
| 372 | lower precedence.</p> | ||
| 373 | <p>A larger value for the <code class="filename">BBFILE_PRIORITY</code> variable results in a higher | ||
| 374 | precedence. | ||
| 375 | For example, the value 6 has a higher precedence than the value 5. | ||
| 376 | If not specified, the <code class="filename">BBFILE_PRIORITY</code> variable is set based on layer | ||
| 377 | dependencies (see the | ||
| 378 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-LAYERDEPENDS" title="LAYERDEPENDS">LAYERDEPENDS</a></code> variable for | ||
| 379 | more information. | ||
| 380 | The default priority, if unspecified | ||
| 381 | for a layer with no dependencies, is the lowest defined priority + 1 | ||
| 382 | (or 1 if no priorities are defined).</p> | ||
| 383 | <div class="tip" title="Tip" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 384 | <h3 class="title">Tip</h3> | ||
| 385 | You can use the command <code class="filename">bitbake-layers show_layers</code> to list | ||
| 386 | all configured layers along with their priorities. | ||
| 387 | </div> | ||
| 388 | </dd> | ||
| 389 | <dt> | ||
| 390 | <a name="var-BBFILES"></a>BBFILES</dt> | ||
| 391 | <dd><p>List of recipe files used by BitBake to build software</p></dd> | ||
| 392 | <dt> | ||
| 393 | <a name="var-BBPATH"></a>BBPATH</dt> | ||
| 394 | <dd><p>Used by BitBake to locate <code class="filename">.bbclass</code> and configuration files. | ||
| 395 | This variable is analogous to the <code class="filename">PATH</code> variable.</p></dd> | ||
| 396 | <dt> | ||
| 397 | <a name="var-BBINCLUDELOGS"></a>BBINCLUDELOGS</dt> | ||
| 398 | <dd><p>Variable that controls how BitBake displays logs on build failure.</p></dd> | ||
| 399 | <dt> | ||
| 400 | <a name="var-BBLAYERS"></a>BBLAYERS</dt> | ||
| 401 | <dd> | ||
| 402 | <p>Lists the layers to enable during the build. | ||
| 403 | This variable is defined in the <code class="filename">bblayers.conf</code> configuration | ||
| 404 | file in the <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>. | ||
| 405 | Here is an example: | ||
| 406 | </p> | ||
| 407 | <pre class="literallayout"> | ||
| 408 | BBLAYERS = " \ | ||
| 409 | /home/scottrif/poky/meta \ | ||
| 410 | /home/scottrif/poky/meta-yocto \ | ||
| 411 | /home/scottrif/poky/meta-yocto-bsp \ | ||
| 412 | /home/scottrif/poky/meta-mykernel \ | ||
| 413 | " | ||
| 414 | </pre> | ||
| 415 | <p> | ||
| 416 | This example enables four layers, one of which is a custom, user-defined layer | ||
| 417 | named <code class="filename">meta-mykernel</code>. | ||
| 418 | </p> | ||
| 419 | </dd> | ||
| 420 | <dt> | ||
| 421 | <a name="var-BP"></a>BP</dt> | ||
| 422 | <dd> | ||
| 423 | <p>The base recipe name and version but without any special | ||
| 424 | recipe name suffix (i.e. <code class="filename">-native</code>, <code class="filename">lib64-</code>, | ||
| 425 | and so forth). | ||
| 426 | <code class="filename">BP</code> is comprised of the following: | ||
| 427 | </p> | ||
| 428 | <pre class="literallayout"> | ||
| 429 | ${BPN}-${PV} | ||
| 430 | </pre> | ||
| 431 | </dd> | ||
| 432 | <dt> | ||
| 433 | <a name="var-BPN"></a>BPN</dt> | ||
| 434 | <dd><p>The bare name of the recipe. | ||
| 435 | This variable is a version of the <a class="link" href="ref-variables-glos.html#var-PN" title="PN"><code class="filename">PN</code></a> variable | ||
| 436 | but removes common suffixes such as "-native" and "-cross" as well | ||
| 437 | as removes common prefixes such as multilib's "lib64-" and "lib32-". | ||
| 438 | The exact list of suffixes removed is specified by the | ||
| 439 | <a class="link" href="ref-variables-glos.html#var-SPECIAL_PKGSUFFIX" title="SPECIAL_PKGSUFFIX"><code class="filename">SPECIAL_PKGSUFFIX</code></a> variable. | ||
| 440 | The exact list of prefixes removed is specified by the | ||
| 441 | <a class="link" href="ref-variables-glos.html#var-MLPREFIX" title="MLPREFIX"><code class="filename">MLPREFIX</code></a> variable. | ||
| 442 | Prefixes are removed for multilib and nativesdk cases.</p></dd> | ||
| 443 | </dl> | ||
| 444 | </div> | ||
| 445 | <div class="glossdiv" title="C"> | ||
| 446 | <h3 class="title">C</h3> | ||
| 447 | <dl> | ||
| 448 | <dt> | ||
| 449 | <a name="var-CFLAGS"></a>CFLAGS</dt> | ||
| 450 | <dd><p> | ||
| 451 | Flags passed to C compiler for the target system. | ||
| 452 | This variable evaluates to the same as | ||
| 453 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-TARGET_CFLAGS" title="TARGET_CFLAGS">TARGET_CFLAGS</a></code>. | ||
| 454 | </p></dd> | ||
| 455 | <dt> | ||
| 456 | <a name="var-COMBINED_FEATURES"></a>COMBINED_FEATURES</dt> | ||
| 457 | <dd><p>A set of features common between | ||
| 458 | <a class="link" href="ref-variables-glos.html#var-MACHINE_FEATURES" title="MACHINE_FEATURES"><code class="filename">MACHINE_FEATURES</code></a> | ||
| 459 | and <a class="link" href="ref-variables-glos.html#var-DISTRO_FEATURES" title="DISTRO_FEATURES"><code class="filename">DISTRO_FEATURES</code></a>. | ||
| 460 | See the glossary descriptions for these variables for more information.</p></dd> | ||
| 461 | <dt> | ||
| 462 | <a name="var-COMPATIBLE_MACHINE"></a>COMPATIBLE_MACHINE</dt> | ||
| 463 | <dd><p>A regular expression which evaluates to match the machines the recipe | ||
| 464 | works with. | ||
| 465 | It stops recipes being run on machines for which they are not compatible. | ||
| 466 | This is particularly useful with kernels. | ||
| 467 | It also helps to increase parsing speed as further parsing of the recipe is skipped | ||
| 468 | if it is found the current machine is not compatible.</p></dd> | ||
| 469 | <dt> | ||
| 470 | <a name="var-CONFFILES"></a>CONFFILES</dt> | ||
| 471 | <dd> | ||
| 472 | <p> | ||
| 473 | Identifies editable or configurable files that are part of a package. | ||
| 474 | If the Package Management System (PMS) is being used to update | ||
| 475 | packages on the target system, it is possible that | ||
| 476 | configuration files you have changed after the original installation | ||
| 477 | and that you now want to remain unchanged are overwritten. | ||
| 478 | In other words, editable files might exist in the package that you do not | ||
| 479 | want reset as part of the package update process. | ||
| 480 | You can use the <code class="filename">CONFFILES</code> variable to list the files in the | ||
| 481 | package that you wish to prevent the PMS from overwriting during this update process. | ||
| 482 | </p> | ||
| 483 | <p> | ||
| 484 | To use the <code class="filename">CONFFILES</code> variable, provide a package name | ||
| 485 | override that identifies the resulting package. | ||
| 486 | Then, provide a space-separated list of files. | ||
| 487 | Here is an example: | ||
| 488 | </p> | ||
| 489 | <pre class="literallayout"> | ||
| 490 | CONFFILES_${PN} += "${sysconfdir}/file1 \ | ||
| 491 | ${sysconfdir}/file2 ${sysconfdir}/file3" | ||
| 492 | </pre> | ||
| 493 | <p> | ||
| 494 | </p> | ||
| 495 | <p> | ||
| 496 | A relationship exists between the <code class="filename">CONFFILES</code> and | ||
| 497 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-FILES" title="FILES">FILES</a></code> variables. | ||
| 498 | The files listed within <code class="filename">CONFFILES</code> must be a subset of | ||
| 499 | the files listed within <code class="filename">FILES</code>. | ||
| 500 | Because the configuration files you provide with <code class="filename">CONFFILES</code> | ||
| 501 | are simply being identified so that the PMS will not overwrite them, | ||
| 502 | it makes sense that | ||
| 503 | the files must already be included as part of the package through the | ||
| 504 | <code class="filename">FILES</code> variable. | ||
| 505 | </p> | ||
| 506 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 507 | <h3 class="title">Note</h3> | ||
| 508 | When specifying paths as part of the <code class="filename">CONFFILES</code> variable, | ||
| 509 | it is good practice to use appropriate path variables. | ||
| 510 | For example, <code class="filename">${sysconfdir}</code> rather than | ||
| 511 | <code class="filename">/etc</code> or <code class="filename">${bindir}</code> rather | ||
| 512 | than <code class="filename">/usr/bin</code>. | ||
| 513 | You can find a list of these variables at the top of the | ||
| 514 | <code class="filename">/meta/conf/bitbake.conf</code> file in the | ||
| 515 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 516 | </div> | ||
| 517 | </dd> | ||
| 518 | <dt> | ||
| 519 | <a name="var-CONFIG_SITE"></a>CONFIG_SITE</dt> | ||
| 520 | <dd><p> | ||
| 521 | A list of files that contains <code class="filename">autoconf</code> test results relevant | ||
| 522 | to the current build. | ||
| 523 | This variable is used by the Autotools utilities when running | ||
| 524 | <code class="filename">configure</code>. | ||
| 525 | </p></dd> | ||
| 526 | <dt> | ||
| 527 | <a name="var-CORE_IMAGE_EXTRA_INSTALL"></a>CORE_IMAGE_EXTRA_INSTALL</dt> | ||
| 528 | <dd> | ||
| 529 | <p> | ||
| 530 | Specifies the list of packages to be added to the image. | ||
| 531 | This variable should only be set in the <code class="filename">local.conf</code> | ||
| 532 | configuration file found in the | ||
| 533 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>. | ||
| 534 | </p> | ||
| 535 | <p> | ||
| 536 | This variable replaces <code class="filename">POKY_EXTRA_INSTALL</code>, which is no longer supported. | ||
| 537 | </p> | ||
| 538 | </dd> | ||
| 539 | </dl> | ||
| 540 | </div> | ||
| 541 | <div class="glossdiv" title="D"> | ||
| 542 | <h3 class="title">D</h3> | ||
| 543 | <dl> | ||
| 544 | <dt> | ||
| 545 | <a name="var-D"></a>D</dt> | ||
| 546 | <dd><p>The destination directory.</p></dd> | ||
| 547 | <dt> | ||
| 548 | <a name="var-DEBUG_BUILD"></a>DEBUG_BUILD</dt> | ||
| 549 | <dd><p> | ||
| 550 | Specifies to build packages with debugging information. | ||
| 551 | This influences the value of the | ||
| 552 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-SELECTED_OPTIMIZATION" title="SELECTED_OPTIMIZATION">SELECTED_OPTIMIZATION</a></code> | ||
| 553 | variable. | ||
| 554 | </p></dd> | ||
| 555 | <dt> | ||
| 556 | <a name="var-DEBUG_OPTIMIZATION"></a>DEBUG_OPTIMIZATION</dt> | ||
| 557 | <dd><p> | ||
| 558 | The options to pass in | ||
| 559 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-TARGET_CFLAGS" title="TARGET_CFLAGS">TARGET_CFLAGS</a></code> | ||
| 560 | and <code class="filename"><a class="link" href="ref-variables-glos.html#var-CFLAGS" title="CFLAGS">CFLAGS</a></code> when compiling | ||
| 561 | a system for debugging. | ||
| 562 | This variable defaults to "-O -fno-omit-frame-pointer -g". | ||
| 563 | </p></dd> | ||
| 564 | <dt> | ||
| 565 | <a name="var-DEFAULT_PREFERENCE"></a>DEFAULT_PREFERENCE</dt> | ||
| 566 | <dd><p>Specifies the priority of recipes.</p></dd> | ||
| 567 | <dt> | ||
| 568 | <a name="var-DEPENDS"></a>DEPENDS</dt> | ||
| 569 | <dd><p> | ||
| 570 | Lists a recipe's build-time dependencies | ||
| 571 | (i.e. other recipe files). | ||
| 572 | The system ensures that all the dependencies listed | ||
| 573 | have been built and have their contents in the appropriate | ||
| 574 | sysroots before the recipe's configure task is executed. | ||
| 575 | </p></dd> | ||
| 576 | <dt> | ||
| 577 | <a name="var-DESCRIPTION"></a>DESCRIPTION</dt> | ||
| 578 | <dd><p>The package description used by package managers. | ||
| 579 | If not set, <code class="filename">DESCRIPTION</code> takes | ||
| 580 | the value of the | ||
| 581 | <a class="link" href="ref-variables-glos.html#var-SUMMARY" title="SUMMARY"><code class="filename">SUMMARY</code></a> | ||
| 582 | variable. | ||
| 583 | </p></dd> | ||
| 584 | <dt> | ||
| 585 | <a name="var-DESTDIR"></a>DESTDIR</dt> | ||
| 586 | <dd><p>the destination directory.</p></dd> | ||
| 587 | <dt> | ||
| 588 | <a name="var-DISTRO"></a>DISTRO</dt> | ||
| 589 | <dd> | ||
| 590 | <p> | ||
| 591 | The short name of the distribution. | ||
| 592 | This variable corresponds to a file with the | ||
| 593 | extension <code class="filename">.conf</code> | ||
| 594 | located in a <code class="filename">conf/distro</code> directory | ||
| 595 | within the metadata that contains the distribution configuration. | ||
| 596 | The | ||
| 597 | value must not contain spaces, and is typically all lower-case. | ||
| 598 | </p> | ||
| 599 | <p> | ||
| 600 | If the variable is blank, a set of default configuration | ||
| 601 | will be used, which is specified | ||
| 602 | within <code class="filename">meta/conf/distro/defaultsetup.conf</code>. | ||
| 603 | </p> | ||
| 604 | </dd> | ||
| 605 | <dt> | ||
| 606 | <a name="var-DISTRO_EXTRA_RDEPENDS"></a>DISTRO_EXTRA_RDEPENDS</dt> | ||
| 607 | <dd><p> | ||
| 608 | Specifies a list of distro-specific packages to add to all images. | ||
| 609 | This variable takes affect through | ||
| 610 | <code class="filename">packagegroup-base</code> so the | ||
| 611 | variable only really applies to the more full-featured | ||
| 612 | images that include <code class="filename">packagegroup-base</code>. | ||
| 613 | You can use this variable to keep distro policy out of | ||
| 614 | generic images. | ||
| 615 | As with all other distro variables, you set this variable | ||
| 616 | in the distro <code class="filename">.conf</code> file. | ||
| 617 | </p></dd> | ||
| 618 | <dt> | ||
| 619 | <a name="var-DISTRO_EXTRA_RRECOMMENDS"></a>DISTRO_EXTRA_RRECOMMENDS</dt> | ||
| 620 | <dd><p> | ||
| 621 | Specifies a list of distro-specific packages to add to all images | ||
| 622 | if the packages exist. | ||
| 623 | The packages might not exist or be empty (e.g. kernel modules). | ||
| 624 | The list of packages are automatically installed but can be | ||
| 625 | removed by the user. | ||
| 626 | </p></dd> | ||
| 627 | <dt> | ||
| 628 | <a name="var-DISTRO_FEATURES"></a>DISTRO_FEATURES</dt> | ||
| 629 | <dd><p>The features enabled for the distribution. | ||
| 630 | For a list of features supported by the Yocto Project as shipped, | ||
| 631 | see the "<a class="link" href="ref-features-distro.html" title="9.1. Distro">Distro</a>" | ||
| 632 | section. | ||
| 633 | </p></dd> | ||
| 634 | <dt> | ||
| 635 | <a name="var-DISTRO_FEATURES_BACKFILL"></a>DISTRO_FEATURES_BACKFILL</dt> | ||
| 636 | <dd> | ||
| 637 | <p>Features to be added to | ||
| 638 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-DISTRO_FEATURES" title="DISTRO_FEATURES">DISTRO_FEATURES</a></code> | ||
| 639 | if not also present in | ||
| 640 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-DISTRO_FEATURES_BACKFILL_CONSIDERED" title="DISTRO_FEATURES_BACKFILL_CONSIDERED">DISTRO_FEATURES_BACKFILL_CONSIDERED</a></code>. | ||
| 641 | </p> | ||
| 642 | <p> | ||
| 643 | This variable is set in the <code class="filename">meta/conf/bitbake.conf</code> file. | ||
| 644 | It is not intended to be user-configurable. | ||
| 645 | It is best to just reference the variable to see which distro features are | ||
| 646 | being backfilled for all distro configurations. | ||
| 647 | See the <a class="link" href="ref-features-backfill.html" title="9.4. Feature Backfilling">Feature backfilling</a> section for | ||
| 648 | more information. | ||
| 649 | </p> | ||
| 650 | </dd> | ||
| 651 | <dt> | ||
| 652 | <a name="var-DISTRO_FEATURES_BACKFILL_CONSIDERED"></a>DISTRO_FEATURES_BACKFILL_CONSIDERED</dt> | ||
| 653 | <dd><p>Features from | ||
| 654 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-DISTRO_FEATURES_BACKFILL" title="DISTRO_FEATURES_BACKFILL">DISTRO_FEATURES_BACKFILL</a></code> | ||
| 655 | that should not backfilled (i.e. added to | ||
| 656 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-DISTRO_FEATURES" title="DISTRO_FEATURES">DISTRO_FEATURES</a></code>) | ||
| 657 | during the build. | ||
| 658 | See the "<a class="link" href="ref-features-backfill.html" title="9.4. Feature Backfilling">Feature Backfilling</a>" section for | ||
| 659 | more information. | ||
| 660 | </p></dd> | ||
| 661 | <dt> | ||
| 662 | <a name="var-DISTRO_NAME"></a>DISTRO_NAME</dt> | ||
| 663 | <dd><p>The long name of the distribution.</p></dd> | ||
| 664 | <dt> | ||
| 665 | <a name="var-DISTRO_PN_ALIAS"></a>DISTRO_PN_ALIAS</dt> | ||
| 666 | <dd> | ||
| 667 | <p>Alias names used for the recipe in various Linux distributions.</p> | ||
| 668 | <p>See the | ||
| 669 | "<a class="link" href="../dev-manual/usingpoky-configuring-DISTRO_PN_ALIAS.html" target="_self">Handling | ||
| 670 | a Package Name Alias</a>" section in the Yocto Project Development | ||
| 671 | Manual for more information.</p> | ||
| 672 | </dd> | ||
| 673 | <dt> | ||
| 674 | <a name="var-DISTRO_VERSION"></a>DISTRO_VERSION</dt> | ||
| 675 | <dd><p>the version of the distribution.</p></dd> | ||
| 676 | <dt> | ||
| 677 | <a name="var-DL_DIR"></a>DL_DIR</dt> | ||
| 678 | <dd> | ||
| 679 | <p> | ||
| 680 | The central download directory used by the build process to store downloads. | ||
| 681 | You can set this directory by defining the <code class="filename">DL_DIR</code> | ||
| 682 | variable in the <code class="filename">/conf/local.conf</code> file. | ||
| 683 | This directory is self-maintaining and you should not have | ||
| 684 | to touch it. | ||
| 685 | By default, the directory is <code class="filename">downloads</code> in the | ||
| 686 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>. | ||
| 687 | </p> | ||
| 688 | <pre class="literallayout"> | ||
| 689 | #DL_DIR ?= "${TOPDIR}/downloads" | ||
| 690 | </pre> | ||
| 691 | <p> | ||
| 692 | To specify a different download directory, simply uncomment the line | ||
| 693 | and provide your directory. | ||
| 694 | </p> | ||
| 695 | <p> | ||
| 696 | During a first build, the system downloads many different source code | ||
| 697 | tarballs from various upstream projects. | ||
| 698 | Downloading can take a while, particularly if your network | ||
| 699 | connection is slow. | ||
| 700 | Tarballs are all stored in the directory defined by | ||
| 701 | <code class="filename">DL_DIR</code> and the build system looks there first | ||
| 702 | to find source tarballs. | ||
| 703 | </p> | ||
| 704 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 705 | <h3 class="title">Note</h3> | ||
| 706 | When wiping and rebuilding, you can preserve this directory to speed | ||
| 707 | up this part of subsequent builds. | ||
| 708 | </div> | ||
| 709 | <p> | ||
| 710 | </p> | ||
| 711 | <p> | ||
| 712 | You can safely share this directory between multiple builds on the | ||
| 713 | same development machine. | ||
| 714 | For additional information on how the build process gets source files | ||
| 715 | when working behind a firewall or proxy server, see the | ||
| 716 | "<a class="link" href="faq.html#how-does-the-yocto-project-obtain-source-code-and-will-it-work-behind-my-firewall-or-proxy-server">FAQ</a>" | ||
| 717 | chapter. | ||
| 718 | </p> | ||
| 719 | </dd> | ||
| 720 | </dl> | ||
| 721 | </div> | ||
| 722 | <div class="glossdiv" title="E"> | ||
| 723 | <h3 class="title">E</h3> | ||
| 724 | <dl> | ||
| 725 | <dt> | ||
| 726 | <a name="var-ENABLE_BINARY_LOCALE_GENERATION"></a>ENABLE_BINARY_LOCALE_GENERATION</dt> | ||
| 727 | <dd> | ||
| 728 | <p></p> | ||
| 729 | <p>Variable that controls which locales for <code class="filename">eglibc</code> are | ||
| 730 | to be generated during the build (useful if the target device has 64Mbytes | ||
| 731 | of RAM or less).</p> | ||
| 732 | </dd> | ||
| 733 | <dt> | ||
| 734 | <a name="var-EXTENDPE"></a>EXTENDPE</dt> | ||
| 735 | <dd> | ||
| 736 | <p> | ||
| 737 | Used with file and pathnames to create a prefix for a recipe's | ||
| 738 | version based on the recipe's | ||
| 739 | <a class="link" href="ref-variables-glos.html#var-PE" title="PE"><code class="filename">PE</code></a> value. | ||
| 740 | If <code class="filename">PE</code> is set and greater than zero for a recipe, | ||
| 741 | <code class="filename">EXTENDPE</code> becomes that value (e.g if | ||
| 742 | <code class="filename">PE</code> is equal to "1" then <code class="filename">EXTENDPE</code> | ||
| 743 | becomes "1_"). | ||
| 744 | If a recipe's <code class="filename">PE</code> is not set (the default) or is equal to | ||
| 745 | zero, <code class="filename">EXTENDPE</code> becomes "".</p> | ||
| 746 | <p>See the <a class="link" href="ref-variables-glos.html#var-STAMP" title="STAMP"><code class="filename">STAMP</code></a> | ||
| 747 | variable for an example. | ||
| 748 | </p> | ||
| 749 | </dd> | ||
| 750 | <dt> | ||
| 751 | <a name="var-EXTRA_IMAGE_FEATURES"></a>EXTRA_IMAGE_FEATURES</dt> | ||
| 752 | <dd> | ||
| 753 | <p>Allows extra packages to be added to the generated images. | ||
| 754 | You set this variable in the <code class="filename">local.conf</code> | ||
| 755 | configuration file. | ||
| 756 | Note that some image features are also added using the | ||
| 757 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-IMAGE_FEATURES" title="IMAGE_FEATURES">IMAGE_FEATURES</a></code> | ||
| 758 | variable generally configured in image recipes. | ||
| 759 | You can use this variable to add more features in addition to those. | ||
| 760 | Here are some examples of features you can add:</p> | ||
| 761 | <pre class="literallayout"> | ||
| 762 | "dbg-pkgs" - Adds -dbg packages for all installed packages | ||
| 763 | including symbol information for debugging and | ||
| 764 | profiling. | ||
| 765 | |||
| 766 | "dev-pkgs" - Adds -dev packages for all installed packages. | ||
| 767 | This is useful if you want to develop against | ||
| 768 | the libraries in the image. | ||
| 769 | |||
| 770 | "tools-sdk" - Adds development tools such as gcc, make, | ||
| 771 | pkgconfig and so forth. | ||
| 772 | |||
| 773 | "tools-debug" - Adds debugging tools such as gdb and | ||
| 774 | strace. | ||
| 775 | |||
| 776 | "tools-profile" - Adds profiling tools such as oprofile, | ||
| 777 | exmap, lttng and valgrind (x86 only). | ||
| 778 | |||
| 779 | "tools-testapps" - Adds useful testing tools such as | ||
| 780 | ts_print, aplay, arecord and so | ||
| 781 | forth. | ||
| 782 | |||
| 783 | "debug-tweaks" - Makes an image suitable for development. | ||
| 784 | For example, ssh root access has a blank | ||
| 785 | password. You should remove this feature | ||
| 786 | before you produce a production image. | ||
| 787 | </pre> | ||
| 788 | <p>There are other valid features too, see the | ||
| 789 | <a class="link" href="ref-features-image.html" title="9.3. Images">Images</a> | ||
| 790 | section for more details.</p> | ||
| 791 | </dd> | ||
| 792 | <dt> | ||
| 793 | <a name="var-EXTRA_IMAGEDEPENDS"></a>EXTRA_IMAGEDEPENDS</dt> | ||
| 794 | <dd> | ||
| 795 | <p>A list of recipes to be built that do not provide packages to be installed in | ||
| 796 | the root filesystem. | ||
| 797 | </p> | ||
| 798 | <p>Sometimes a recipe is required to build the final image but is not | ||
| 799 | needed in the root filesystem. | ||
| 800 | You can use the <code class="filename">EXTRA_IMAGEDEPENDS</code> variable to | ||
| 801 | list these recipes and thus, specify the dependencies. | ||
| 802 | A typical example is a required bootloader in a machine configuration. | ||
| 803 | </p> | ||
| 804 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 805 | <h3 class="title">Note</h3> | ||
| 806 | To add packages to the root filesystem, see the various | ||
| 807 | <code class="filename">*DEPENDS</code> and <code class="filename">*RECOMMENDS</code> | ||
| 808 | variables. | ||
| 809 | </div> | ||
| 810 | </dd> | ||
| 811 | <dt> | ||
| 812 | <a name="var-EXTRA_OECMAKE"></a>EXTRA_OECMAKE</dt> | ||
| 813 | <dd><p>Additional <code class="filename">cmake</code> options.</p></dd> | ||
| 814 | <dt> | ||
| 815 | <a name="var-EXTRA_OECONF"></a>EXTRA_OECONF</dt> | ||
| 816 | <dd><p>Additional <code class="filename">configure</code> script options.</p></dd> | ||
| 817 | <dt> | ||
| 818 | <a name="var-EXTRA_OEMAKE"></a>EXTRA_OEMAKE</dt> | ||
| 819 | <dd><p>Additional GNU <code class="filename">make</code> options.</p></dd> | ||
| 820 | </dl> | ||
| 821 | </div> | ||
| 822 | <div class="glossdiv" title="F"> | ||
| 823 | <h3 class="title">F</h3> | ||
| 824 | <dl> | ||
| 825 | <dt> | ||
| 826 | <a name="var-FILES"></a>FILES</dt> | ||
| 827 | <dd> | ||
| 828 | <p> | ||
| 829 | The list of directories or files that are placed in packages. | ||
| 830 | </p> | ||
| 831 | <p> | ||
| 832 | To use the <code class="filename">FILES</code> variable, provide a package name | ||
| 833 | override that identifies the resulting package. | ||
| 834 | Then, provide a space-separated list of files or paths that identifies the | ||
| 835 | files you want included as part of the resulting package. | ||
| 836 | Here is an example: | ||
| 837 | </p> | ||
| 838 | <pre class="literallayout"> | ||
| 839 | FILES_${PN} += "${bindir}/mydir1/ ${bindir}/mydir2/myfile" | ||
| 840 | </pre> | ||
| 841 | <p> | ||
| 842 | </p> | ||
| 843 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 844 | <h3 class="title">Note</h3> | ||
| 845 | When specifying paths as part of the <code class="filename">FILES</code> variable, | ||
| 846 | it is good practice to use appropriate path variables. | ||
| 847 | For example, <code class="filename">${sysconfdir}</code> rather than | ||
| 848 | <code class="filename">/etc</code> or <code class="filename">${bindir}</code> rather | ||
| 849 | than <code class="filename">/usr/bin</code>. | ||
| 850 | You can find a list of these variables at the top of the | ||
| 851 | <code class="filename">/meta/conf/bitbake.conf</code> file in the | ||
| 852 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 853 | </div> | ||
| 854 | <p> | ||
| 855 | If some of the files you provide with the <code class="filename">FILES</code> variable | ||
| 856 | are editable and you know they should not be | ||
| 857 | overwritten during the package update process by the Package Management | ||
| 858 | System (PMS), you can identify these files so that the PMS will not | ||
| 859 | overwrite them. | ||
| 860 | See the <code class="filename"><a class="link" href="ref-variables-glos.html#var-CONFFILES" title="CONFFILES">CONFFILES</a></code> | ||
| 861 | variable for information on how to identify these files to the PMS. | ||
| 862 | </p> | ||
| 863 | </dd> | ||
| 864 | <dt> | ||
| 865 | <a name="var-FILESEXTRAPATHS"></a>FILESEXTRAPATHS</dt> | ||
| 866 | <dd> | ||
| 867 | <p> | ||
| 868 | Extends the search path the OpenEmbedded build system uses when | ||
| 869 | looking for files and patches as it processes recipes. | ||
| 870 | The directories BitBake uses when it processes recipes is defined by the | ||
| 871 | <a class="link" href="ref-variables-glos.html#var-FILESPATH" title="FILESPATH"><code class="filename">FILESPATH</code></a> variable. | ||
| 872 | You can add directories to the search path by defining the | ||
| 873 | <code class="filename">FILESEXTRAPATHS</code> variable. | ||
| 874 | </p> | ||
| 875 | <p> | ||
| 876 | To add paths to the search order, provide a list of directories and separate | ||
| 877 | each path using a colon character as follows: | ||
| 878 | </p> | ||
| 879 | <pre class="literallayout"> | ||
| 880 | FILESEXTRAPATHS_prepend := "path_1:path_2:path_3:" | ||
| 881 | </pre> | ||
| 882 | <p> | ||
| 883 | Typically, you want your directories search first. | ||
| 884 | To make sure that happens, use <code class="filename">_prepend</code> and | ||
| 885 | the immediate expansion (<code class="filename">:=</code>) operator as shown in the | ||
| 886 | previous example. | ||
| 887 | Finally, to maintain the integrity of the <code class="filename">FILESPATH</code> variable, | ||
| 888 | you must include the appropriate beginning or ending (as needed) colon character. | ||
| 889 | </p> | ||
| 890 | <p> | ||
| 891 | The <code class="filename">FILESEXTRAPATHS</code> variable is intended for use in | ||
| 892 | <code class="filename">.bbappend</code> files to include any additional files provided in that layer. | ||
| 893 | You typically accomplish this with the following: | ||
| 894 | </p> | ||
| 895 | <pre class="literallayout"> | ||
| 896 | FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:" | ||
| 897 | </pre> | ||
| 898 | <p> | ||
| 899 | </p> | ||
| 900 | </dd> | ||
| 901 | <dt> | ||
| 902 | <a name="var-FILESPATH"></a>FILESPATH</dt> | ||
| 903 | <dd> | ||
| 904 | <p> | ||
| 905 | The default set of directories the OpenEmbedded build system uses | ||
| 906 | when searching for patches and files. | ||
| 907 | During the build process, BitBake searches each directory in | ||
| 908 | <code class="filename">FILESPATH</code> in the specified order when looking for | ||
| 909 | files and patches specified by each <code class="filename">file://</code> URI in a recipe. | ||
| 910 | </p> | ||
| 911 | <p> | ||
| 912 | The default value for the <code class="filename">FILESPATH</code> variable is defined | ||
| 913 | in the <code class="filename">base.bbclass</code> class found in | ||
| 914 | <code class="filename">meta/classes</code> in the | ||
| 915 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>: | ||
| 916 | </p> | ||
| 917 | <pre class="literallayout"> | ||
| 918 | FILESPATH = "${@base_set_filespath([ "${FILE_DIRNAME}/${PF}", \ | ||
| 919 | "${FILE_DIRNAME}/${P}", "${FILE_DIRNAME}/${PN}", \ | ||
| 920 | "${FILE_DIRNAME}/${BP}", "${FILE_DIRNAME}/${BPN}", \ | ||
| 921 | "${FILE_DIRNAME}/files", "${FILE_DIRNAME}" ], d)}" | ||
| 922 | </pre> | ||
| 923 | <p> | ||
| 924 | Do not hand-edit the <code class="filename">FILESPATH</code> variable. | ||
| 925 | If you want to extend the set of pathnames that BitBake uses when searching for | ||
| 926 | files and patches, use the | ||
| 927 | <a class="link" href="ref-variables-glos.html#var-FILESEXTRAPATHS" title="FILESEXTRAPATHS"><code class="filename">FILESEXTRAPATHS</code></a> variable. | ||
| 928 | </p> | ||
| 929 | </dd> | ||
| 930 | <dt> | ||
| 931 | <a name="var-FILESYSTEM_PERMS_TABLES"></a>FILESYSTEM_PERMS_TABLES</dt> | ||
| 932 | <dd> | ||
| 933 | <p>Allows you to define your own file permissions settings table as part of | ||
| 934 | your configuration for the packaging process. | ||
| 935 | For example, suppose you need a consistent set of custom permissions for | ||
| 936 | a set of groups and users across an entire work project. | ||
| 937 | It is best to do this in the packages themselves but this is not always | ||
| 938 | possible. | ||
| 939 | </p> | ||
| 940 | <p> | ||
| 941 | By default, the OpenEmbedded build system uses the <code class="filename">fs-perms.txt</code>, which | ||
| 942 | is located in the <code class="filename">meta/files</code> folder in the | ||
| 943 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 944 | If you create your own file permissions setting table, you should place it in your | ||
| 945 | layer or the distros layer. | ||
| 946 | </p> | ||
| 947 | <p> | ||
| 948 | You define the <code class="filename">FILESYSTEM_PERMS_TABLES</code> variable in the | ||
| 949 | <code class="filename">conf/local.conf</code> file, which is found in the | ||
| 950 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>, to | ||
| 951 | point to your custom <code class="filename">fs-perms.txt</code>. | ||
| 952 | You can specify more than a single file permissions setting table. | ||
| 953 | The paths you specify to these files must be defined within the | ||
| 954 | <code class="filename">BBPATH</code> variable. | ||
| 955 | </p> | ||
| 956 | <p> | ||
| 957 | For guidance on how to create your own file permissions settings table file, | ||
| 958 | examine the existing <code class="filename">fs-perms.txt</code>. | ||
| 959 | </p> | ||
| 960 | </dd> | ||
| 961 | <dt> | ||
| 962 | <a name="var-FULL_OPTIMIZATION"></a>FULL_OPTIMIZATION</dt> | ||
| 963 | <dd><p> | ||
| 964 | The options to pass in | ||
| 965 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-TARGET_CFLAGS" title="TARGET_CFLAGS">TARGET_CFLAGS</a></code> | ||
| 966 | and <code class="filename"><a class="link" href="ref-variables-glos.html#var-CFLAGS" title="CFLAGS">CFLAGS</a></code> | ||
| 967 | when compiling an optimized system. | ||
| 968 | This variable defaults to | ||
| 969 | "-fexpensive-optimizations -fomit-frame-pointer -frename-registers -O2". | ||
| 970 | </p></dd> | ||
| 971 | </dl> | ||
| 972 | </div> | ||
| 973 | <div class="glossdiv" title="H"> | ||
| 974 | <h3 class="title">H</h3> | ||
| 975 | <dl> | ||
| 976 | <dt> | ||
| 977 | <a name="var-HOMEPAGE"></a>HOMEPAGE</dt> | ||
| 978 | <dd><p>Website where more information about the software the recipe is building | ||
| 979 | can be found.</p></dd> | ||
| 980 | </dl> | ||
| 981 | </div> | ||
| 982 | <div class="glossdiv" title="I"> | ||
| 983 | <h3 class="title">I</h3> | ||
| 984 | <dl> | ||
| 985 | <dt> | ||
| 986 | <a name="var-IMAGE_FEATURES"></a>IMAGE_FEATURES</dt> | ||
| 987 | <dd><p>The list of features to include in an image. | ||
| 988 | Typically, you configure this variable in an image recipe. | ||
| 989 | Note that you can also add extra features to the image by using the | ||
| 990 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-EXTRA_IMAGE_FEATURES" title="EXTRA_IMAGE_FEATURES">EXTRA_IMAGE_FEATURES</a></code> variable. | ||
| 991 | See the "<a class="link" href="ref-features-image.html" title="9.3. Images">Images</a>" section for the | ||
| 992 | full list of features that can be included in images built by the | ||
| 993 | OpenEmbedded build system.</p></dd> | ||
| 994 | <dt> | ||
| 995 | <a name="var-IMAGE_FSTYPES"></a>IMAGE_FSTYPES</dt> | ||
| 996 | <dd><p>Formats of root filesystem images that you want to have created.</p></dd> | ||
| 997 | <dt> | ||
| 998 | <a name="var-IMAGE_INSTALL"></a>IMAGE_INSTALL</dt> | ||
| 999 | <dd> | ||
| 1000 | <p> | ||
| 1001 | Specifies the packages to install into an image. | ||
| 1002 | The <code class="filename">IMAGE_INSTALL</code> variable is a mechanism for an image | ||
| 1003 | recipe and you should use it with care to avoid ordering issues. | ||
| 1004 | </p> | ||
| 1005 | <p> | ||
| 1006 | Image recipes set <code class="filename">IMAGE_INSTALL</code> to specify the | ||
| 1007 | packages to install into an image through <code class="filename">image.bbclass</code>. | ||
| 1008 | Additionally, "helper" classes exist, such as <code class="filename">core-image.bbclass</code>, | ||
| 1009 | that can take | ||
| 1010 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-IMAGE_FEATURES" title="IMAGE_FEATURES">IMAGE_FEATURES</a></code> lists | ||
| 1011 | and turn these into auto-generated entries in | ||
| 1012 | <code class="filename">IMAGE_INSTALL</code> in addition to its default contents. | ||
| 1013 | </p> | ||
| 1014 | <p> | ||
| 1015 | Using <code class="filename">IMAGE_INSTALL</code> with the <code class="filename">+=</code> | ||
| 1016 | operator from the <code class="filename">/conf/local.conf</code> file or from within | ||
| 1017 | an image recipe is not recommended as it can cause ordering issues. | ||
| 1018 | Since <code class="filename">core-image.bbclass</code> sets <code class="filename">IMAGE_INSTALL</code> | ||
| 1019 | to a default value using the <code class="filename">?=</code> operator, using a | ||
| 1020 | <code class="filename">+=</code> operation against <code class="filename">IMAGE_INSTALL</code> | ||
| 1021 | will result in unexpected behavior when used in | ||
| 1022 | <code class="filename">/conf/local.conf</code>. | ||
| 1023 | Furthermore, the same operation from with an image recipe may or may not | ||
| 1024 | succeed depending on the specific situation. | ||
| 1025 | In both these cases, the behavior is contrary to how most users expect | ||
| 1026 | the <code class="filename">+=</code> operator to work. | ||
| 1027 | </p> | ||
| 1028 | <p> | ||
| 1029 | When you use this variable, it is best to use it as follows: | ||
| 1030 | </p> | ||
| 1031 | <pre class="literallayout"> | ||
| 1032 | IMAGE_INSTALL_append = " package-name" | ||
| 1033 | </pre> | ||
| 1034 | <p> | ||
| 1035 | Be sure to include the space between the quotation character and the start of the | ||
| 1036 | package name. | ||
| 1037 | </p> | ||
| 1038 | </dd> | ||
| 1039 | <dt> | ||
| 1040 | <a name="var-IMAGE_OVERHEAD_FACTOR"></a>IMAGE_OVERHEAD_FACTOR</dt> | ||
| 1041 | <dd> | ||
| 1042 | <p> | ||
| 1043 | Defines a multiplier that the build system applies to the initial image | ||
| 1044 | size for cases when the multiplier times the returned disk usage value | ||
| 1045 | for the image is greater than the sum of | ||
| 1046 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-IMAGE_ROOTFS_SIZE" title="IMAGE_ROOTFS_SIZE">IMAGE_ROOTFS_SIZE</a></code> | ||
| 1047 | and | ||
| 1048 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-IMAGE_ROOTFS_EXTRA_SPACE" title="IMAGE_ROOTFS_EXTRA_SPACE">IMAGE_ROOTFS_EXTRA_SPACE</a></code>. | ||
| 1049 | The result of the multiplier applied to the initial image size creates | ||
| 1050 | free disk space in the image as overhead. | ||
| 1051 | By default, the build process uses a multiplier of 1.3 for this variable. | ||
| 1052 | This default value results in 30% free disk space added to the image when this | ||
| 1053 | method is used to determine the final generated image size. | ||
| 1054 | You should be aware that post install scripts and the package management | ||
| 1055 | system uses disk space inside this overhead area. | ||
| 1056 | Consequently, the multiplier does not produce an image with | ||
| 1057 | all the theoretical free disk space. | ||
| 1058 | See <code class="filename"><a class="link" href="ref-variables-glos.html#var-IMAGE_ROOTFS_SIZE" title="IMAGE_ROOTFS_SIZE">IMAGE_ROOTFS_SIZE</a></code> | ||
| 1059 | for information on how the build system determines the overall image size. | ||
| 1060 | </p> | ||
| 1061 | <p> | ||
| 1062 | The default 30% free disk space typically gives the image enough room to boot | ||
| 1063 | and allows for basic post installs while still leaving a small amount of | ||
| 1064 | free disk space. | ||
| 1065 | If 30% free space is inadequate, you can increase the default value. | ||
| 1066 | For example, the following setting gives you 50% free space added to the image: | ||
| 1067 | </p> | ||
| 1068 | <pre class="literallayout"> | ||
| 1069 | IMAGE_OVERHEAD_FACTOR = "1.5" | ||
| 1070 | </pre> | ||
| 1071 | <p> | ||
| 1072 | </p> | ||
| 1073 | <p> | ||
| 1074 | Alternatively, you can ensure a specific amount of free disk space is added | ||
| 1075 | to the image by using | ||
| 1076 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-IMAGE_ROOTFS_EXTRA_SPACE" title="IMAGE_ROOTFS_EXTRA_SPACE">IMAGE_ROOTFS_EXTRA_SPACE</a></code> | ||
| 1077 | the variable. | ||
| 1078 | </p> | ||
| 1079 | </dd> | ||
| 1080 | <dt> | ||
| 1081 | <a name="var-IMAGE_ROOTFS_EXTRA_SPACE"></a>IMAGE_ROOTFS_EXTRA_SPACE</dt> | ||
| 1082 | <dd> | ||
| 1083 | <p> | ||
| 1084 | Defines additional free disk space created in the image in Kbytes. | ||
| 1085 | By default, this variable is set to "0". | ||
| 1086 | This free disk space is added to the image after the build system determines | ||
| 1087 | the image size as described in | ||
| 1088 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-IMAGE_ROOTFS_SIZE" title="IMAGE_ROOTFS_SIZE">IMAGE_ROOTFS_SIZE</a></code>. | ||
| 1089 | </p> | ||
| 1090 | <p> | ||
| 1091 | This variable is particularly useful when you want to ensure that a | ||
| 1092 | specific amount of free disk space is available on a device after an image | ||
| 1093 | is installed and running. | ||
| 1094 | For example, to be sure 5 Gbytes of free disk space is available, set the | ||
| 1095 | variable as follows: | ||
| 1096 | </p> | ||
| 1097 | <pre class="literallayout"> | ||
| 1098 | IMAGE_ROOTFS_EXTRA_SPACE = "5242880" | ||
| 1099 | </pre> | ||
| 1100 | <p> | ||
| 1101 | </p> | ||
| 1102 | </dd> | ||
| 1103 | <dt> | ||
| 1104 | <a name="var-IMAGE_ROOTFS_SIZE"></a>IMAGE_ROOTFS_SIZE</dt> | ||
| 1105 | <dd> | ||
| 1106 | <p> | ||
| 1107 | Defines the size in Kbytes for the generated image. | ||
| 1108 | The OpenEmbedded build system determines the final size for the generated | ||
| 1109 | image using an algorithm that takes into account the initial disk space used | ||
| 1110 | for the generated image, a requested size for the image, and requested | ||
| 1111 | additional free disk space to be added to the image. | ||
| 1112 | Programatically, the build system determines the final size of the | ||
| 1113 | generated image as follows: | ||
| 1114 | </p> | ||
| 1115 | <pre class="literallayout"> | ||
| 1116 | if (image-du * overhead) < rootfs-size: | ||
| 1117 | internal-rootfs-size = rootfs-size + xspace | ||
| 1118 | else: | ||
| 1119 | internal-rootfs-size = (image-du * overhead) + xspace | ||
| 1120 | |||
| 1121 | where: | ||
| 1122 | |||
| 1123 | image-du = Returned value of the du command on | ||
| 1124 | the image. | ||
| 1125 | |||
| 1126 | overhead = IMAGE_OVERHEAD_FACTOR | ||
| 1127 | |||
| 1128 | rootfs-size = IMAGE_ROOTFS_SIZE | ||
| 1129 | |||
| 1130 | internal-rootfs-size = Initial root filesystem | ||
| 1131 | size before any modifications. | ||
| 1132 | |||
| 1133 | xspace = IMAGE_ROOTFS_EXTRA_SPACE | ||
| 1134 | </pre> | ||
| 1135 | <p> | ||
| 1136 | |||
| 1137 | </p> | ||
| 1138 | </dd> | ||
| 1139 | <dt> | ||
| 1140 | <a name="var-INC_PR"></a>INC_PR</dt> | ||
| 1141 | <dd> | ||
| 1142 | <p>Helps define the recipe revision for recipes that share | ||
| 1143 | a common <code class="filename">include</code> file. | ||
| 1144 | You can think of this variable as part of the recipe revision | ||
| 1145 | as set from within an include file.</p> | ||
| 1146 | <p>Suppose, for example, you have a set of recipes that | ||
| 1147 | are used across several projects. | ||
| 1148 | And, within each of those recipes the revision | ||
| 1149 | (its <code class="filename">PR</code> value) is set accordingly. | ||
| 1150 | In this case, when the revision of those recipes changes | ||
| 1151 | the burden is on you to find all those recipes and | ||
| 1152 | be sure that they get changed to reflect the updated | ||
| 1153 | version of the recipe. | ||
| 1154 | In this scenario, it can get complicated when recipes | ||
| 1155 | used in many places and that provide common functionality | ||
| 1156 | are upgraded to a new revision.</p> | ||
| 1157 | <p>A more efficient way of dealing with this situation is | ||
| 1158 | to set the <code class="filename">INC_PR</code> variable inside | ||
| 1159 | the <code class="filename">include</code> files that the recipes | ||
| 1160 | share and then expand the <code class="filename">INC_PR</code> | ||
| 1161 | variable within the recipes to help | ||
| 1162 | define the recipe revision. | ||
| 1163 | </p> | ||
| 1164 | <p> | ||
| 1165 | The following provides an example that shows how to use | ||
| 1166 | the <code class="filename">INC_PR</code> variable | ||
| 1167 | given a common <code class="filename">include</code> file that | ||
| 1168 | defines the variable. | ||
| 1169 | Once the variable is defined in the | ||
| 1170 | <code class="filename">include</code> file, you can use the | ||
| 1171 | variable to set the <code class="filename">PR</code> values in | ||
| 1172 | each recipe. | ||
| 1173 | You will notice that when you set a recipe's | ||
| 1174 | <code class="filename">PR</code> you can provide more granular | ||
| 1175 | revisioning by appending values to the | ||
| 1176 | <code class="filename">INC_PR</code> variable: | ||
| 1177 | </p> | ||
| 1178 | <pre class="literallayout"> | ||
| 1179 | recipes-graphics/xorg-font/xorg-font-common.inc:INC_PR = "r2" | ||
| 1180 | recipes-graphics/xorg-font/encodings_1.0.4.bb:PR = "${INC_PR}.1" | ||
| 1181 | recipes-graphics/xorg-font/font-util_1.3.0.bb:PR = "${INC_PR}.0" | ||
| 1182 | recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3" | ||
| 1183 | </pre> | ||
| 1184 | <p> | ||
| 1185 | The first line of the example establishes the baseline | ||
| 1186 | revision to be used for all recipes that use the | ||
| 1187 | <code class="filename">include</code> file. | ||
| 1188 | The remaining lines in the example are from individual | ||
| 1189 | recipes and show how the <code class="filename">PR</code> value | ||
| 1190 | is set.</p> | ||
| 1191 | </dd> | ||
| 1192 | <dt> | ||
| 1193 | <a name="var-INHIBIT_PACKAGE_STRIP"></a>INHIBIT_PACKAGE_STRIP</dt> | ||
| 1194 | <dd><p> | ||
| 1195 | Causes the build to not strip binaries in resulting packages. | ||
| 1196 | </p></dd> | ||
| 1197 | <dt> | ||
| 1198 | <a name="var-INHERIT"></a>INHERIT</dt> | ||
| 1199 | <dd><p> | ||
| 1200 | Causes the named class to be inherited at | ||
| 1201 | this point during parsing. | ||
| 1202 | The variable is only valid in configuration files. | ||
| 1203 | </p></dd> | ||
| 1204 | <dt> | ||
| 1205 | <a name="var-INITSCRIPT_PACKAGES"></a>INITSCRIPT_PACKAGES</dt> | ||
| 1206 | <dd> | ||
| 1207 | <p> | ||
| 1208 | A list of the packages that contain initscripts. | ||
| 1209 | If multiple packages are specified, you need to append the package name | ||
| 1210 | to the other <code class="filename">INITSCRIPT_*</code> as an override.</p> | ||
| 1211 | <p> | ||
| 1212 | This variable is used in recipes when using <code class="filename">update-rc.d.bbclass</code>. | ||
| 1213 | The variable is optional and defaults to the <code class="filename">PN</code> variable. | ||
| 1214 | </p> | ||
| 1215 | </dd> | ||
| 1216 | <dt> | ||
| 1217 | <a name="var-INITSCRIPT_NAME"></a>INITSCRIPT_NAME</dt> | ||
| 1218 | <dd> | ||
| 1219 | <p> | ||
| 1220 | The filename of the initscript (as installed to <code class="filename">${etcdir}/init.d)</code>. | ||
| 1221 | </p> | ||
| 1222 | <p> | ||
| 1223 | This variable is used in recipes when using <code class="filename">update-rc.d.bbclass</code>. | ||
| 1224 | The variable is Mandatory. | ||
| 1225 | </p> | ||
| 1226 | </dd> | ||
| 1227 | <dt> | ||
| 1228 | <a name="var-INITSCRIPT_PARAMS"></a>INITSCRIPT_PARAMS</dt> | ||
| 1229 | <dd> | ||
| 1230 | <p> | ||
| 1231 | Specifies the options to pass to <code class="filename">update-rc.d</code>. | ||
| 1232 | An example is <code class="filename">start 99 5 2 . stop 20 0 1 6 .</code>, which gives the script a | ||
| 1233 | runlevel of 99, starts the script in initlevels 2 and 5, and | ||
| 1234 | stops the script in levels 0, 1 and 6. | ||
| 1235 | </p> | ||
| 1236 | <p> | ||
| 1237 | The variable is mandatory and is used in recipes when using | ||
| 1238 | <code class="filename">update-rc.d.bbclass</code>. | ||
| 1239 | </p> | ||
| 1240 | </dd> | ||
| 1241 | </dl> | ||
| 1242 | </div> | ||
| 1243 | <div class="glossdiv" title="K"> | ||
| 1244 | <h3 class="title">K</h3> | ||
| 1245 | <dl> | ||
| 1246 | <dt> | ||
| 1247 | <a name="var-KBRANCH"></a>KBRANCH</dt> | ||
| 1248 | <dd> | ||
| 1249 | <p> | ||
| 1250 | A regular expression used by the build process to explicitly identify the kernel | ||
| 1251 | branch that is validated, patched and configured during a build. | ||
| 1252 | The <code class="filename">KBRANCH</code> variable is optional. | ||
| 1253 | You can use it to trigger checks to ensure the exact kernel branch you want is | ||
| 1254 | being used by the build process. | ||
| 1255 | </p> | ||
| 1256 | <p> | ||
| 1257 | Values for this variable are set in the kernel's recipe file and the kernel's | ||
| 1258 | append file. | ||
| 1259 | For example, if you are using the Yocto Project kernel that is based on the | ||
| 1260 | Linux 3.4 kernel, the kernel recipe file is the | ||
| 1261 | <code class="filename">meta/recipes-kernel/linux/linux-yocto_3.4.bb</code> file. | ||
| 1262 | Following is the default value for <code class="filename">KBRANCH</code> and the default | ||
| 1263 | override for the architectures the Yocto Project supports: | ||
| 1264 | </p> | ||
| 1265 | <pre class="literallayout"> | ||
| 1266 | KBRANCH_DEFAULT = "standard/base" | ||
| 1267 | KBRANCH = "${KBRANCH_DEFAULT}" | ||
| 1268 | </pre> | ||
| 1269 | <p> | ||
| 1270 | This branch exists in the <code class="filename">linux-yocto-3.4</code> kernel Git | ||
| 1271 | repository <a class="ulink" href="http://git.yoctoproject.org/cgit.cgi/linux-yocto-3.4/refs/heads" target="_self">http://git.yoctoproject.org/cgit.cgi/linux-yocto-3.4/refs/heads</a>. | ||
| 1272 | </p> | ||
| 1273 | <p> | ||
| 1274 | This variable is also used from the kernel's append file to identify the kernel | ||
| 1275 | branch specific to a particular machine or target hardware. | ||
| 1276 | The kernel's append file is located in the BSP layer for a given machine. | ||
| 1277 | For example, the kernel append file for the Crown Bay BSP is in the | ||
| 1278 | <code class="filename">meta-intel</code> Git repository and is named | ||
| 1279 | <code class="filename">meta-crownbay/recipes-kernel/linux/linux-yocto_3.4.bbappend</code>. | ||
| 1280 | Here are the related statements from the append file: | ||
| 1281 | </p> | ||
| 1282 | <pre class="literallayout"> | ||
| 1283 | COMPATIBLE_MACHINE_crownbay = "crownbay" | ||
| 1284 | KMACHINE_crownbay = "crownbay" | ||
| 1285 | KBRANCH_crownbay = "standard/crownbay" | ||
| 1286 | |||
| 1287 | COMPATIBLE_MACHINE_crownbay-noemgd = "crownbay-noemgd" | ||
| 1288 | KMACHINE_crownbay-noemgd = "crownbay" | ||
| 1289 | KBRANCH_crownbay-noemgd = "standard/crownbay" | ||
| 1290 | </pre> | ||
| 1291 | <p> | ||
| 1292 | The <code class="filename">KBRANCH_*</code> statements identify the kernel branch to | ||
| 1293 | use when building for the Crown Bay BSP. | ||
| 1294 | In this case there are two identical statements: one for each type of | ||
| 1295 | Crown Bay machine. | ||
| 1296 | </p> | ||
| 1297 | </dd> | ||
| 1298 | <dt> | ||
| 1299 | <a name="var-KERNEL_FEATURES"></a>KERNEL_FEATURES</dt> | ||
| 1300 | <dd> | ||
| 1301 | <p>Includes additional metadata from the Yocto Project kernel Git repository. | ||
| 1302 | In the OpenEmbedded build system, the default Board Support Packages (BSPs) | ||
| 1303 | metadata is provided through | ||
| 1304 | the <code class="filename">KMACHINE</code> and <code class="filename">KBRANCH</code> variables. | ||
| 1305 | You can use the <code class="filename">KERNEL_FEATURES</code> variable to further | ||
| 1306 | add metadata for all BSPs.</p> | ||
| 1307 | <p>The metadata you add through this variable includes config fragments and | ||
| 1308 | features descriptions, | ||
| 1309 | which usually includes patches as well as config fragments. | ||
| 1310 | You typically override the <code class="filename">KERNEL_FEATURES</code> variable | ||
| 1311 | for a specific machine. | ||
| 1312 | In this way, you can provide validated, but optional, sets of kernel | ||
| 1313 | configurations and features.</p> | ||
| 1314 | <p>For example, the following adds <code class="filename">netfilter</code> to all | ||
| 1315 | the Yocto Project kernels and adds sound support to the <code class="filename">qemux86</code> | ||
| 1316 | machine: | ||
| 1317 | </p> | ||
| 1318 | <pre class="literallayout"> | ||
| 1319 | # Add netfilter to all linux-yocto kernels | ||
| 1320 | KERNEL_FEATURES="features/netfilter" | ||
| 1321 | |||
| 1322 | # Add sound support to the qemux86 machine | ||
| 1323 | KERNEL_FEATURES_append_qemux86=" cfg/sound" | ||
| 1324 | </pre> | ||
| 1325 | </dd> | ||
| 1326 | <dt> | ||
| 1327 | <a name="var-KERNEL_IMAGETYPE"></a>KERNEL_IMAGETYPE</dt> | ||
| 1328 | <dd><p>The type of kernel to build for a device, usually set by the | ||
| 1329 | machine configuration files and defaults to "zImage". | ||
| 1330 | This variable is used | ||
| 1331 | when building the kernel and is passed to <code class="filename">make</code> as the target to | ||
| 1332 | build.</p></dd> | ||
| 1333 | <dt> | ||
| 1334 | <a name="var-KMACHINE"></a>KMACHINE</dt> | ||
| 1335 | <dd> | ||
| 1336 | <p> | ||
| 1337 | The machine as known by the kernel. | ||
| 1338 | Sometimes the machine name used by the kernel does not match the machine name | ||
| 1339 | used by the OpenEmbedded build system. | ||
| 1340 | For example, the machine name that the OpenEmbedded build system understands as | ||
| 1341 | <code class="filename">qemuarm</code> goes by a different name in the Linux Yocto kernel. | ||
| 1342 | The kernel understands that machine as <code class="filename">arm_versatile926ejs</code>. | ||
| 1343 | For cases like these, the <code class="filename">KMACHINE</code> variable maps the | ||
| 1344 | kernel machine name to the OpenEmbedded build system machine name. | ||
| 1345 | </p> | ||
| 1346 | <p> | ||
| 1347 | Kernel machine names are initially defined in the | ||
| 1348 | <a class="ulink" href="http://git.yoctoproject.org/cgit.cgi" target="_self">Yocto Linux Kernel</a> in | ||
| 1349 | the <code class="filename">meta</code> branch. | ||
| 1350 | From the <code class="filename">meta</code> branch, look in | ||
| 1351 | the <code class="filename">meta/cfg/kernel-cache/bsp/<bsp_name>/<bsp-name>-<kernel-type>.scc</code> file. | ||
| 1352 | For example, from the <code class="filename">meta</code> branch in the | ||
| 1353 | <code class="filename">linux-yocto-3.0</code> kernel, the | ||
| 1354 | <code class="filename">meta/cfg/kernel-cache/bsp/cedartrail/cedartrail-standard.scc</code> file | ||
| 1355 | has the following: | ||
| 1356 | </p> | ||
| 1357 | <pre class="literallayout"> | ||
| 1358 | define KMACHINE cedartrail | ||
| 1359 | define KTYPE standard | ||
| 1360 | define KARCH i386 | ||
| 1361 | |||
| 1362 | include ktypes/standard | ||
| 1363 | branch cedartrail | ||
| 1364 | |||
| 1365 | include cedartrail.scc | ||
| 1366 | </pre> | ||
| 1367 | <p> | ||
| 1368 | You can see that the kernel understands the machine name for the Cedar Trail BSP as | ||
| 1369 | <code class="filename">cedartrail</code>. | ||
| 1370 | </p> | ||
| 1371 | <p> | ||
| 1372 | If you look in the Cedar Trail BSP layer in the <code class="filename">meta-intel</code> source | ||
| 1373 | repository at <code class="filename">meta-cedartrail/recipes-kernel/linux/linux-yocto_3.0.bbappend</code>, | ||
| 1374 | you will find the following statements among others: | ||
| 1375 | </p> | ||
| 1376 | <pre class="literallayout"> | ||
| 1377 | COMPATIBLE_MACHINE_cedartrail = "cedartrail" | ||
| 1378 | KMACHINE_cedartrail = "cedartrail" | ||
| 1379 | KBRANCH_cedartrail = "yocto/standard/cedartrail" | ||
| 1380 | KERNEL_FEATURES_append_cedartrail += "bsp/cedartrail/cedartrail-pvr-merge.scc" | ||
| 1381 | KERNEL_FEATURES_append_cedartrail += "cfg/efi-ext.scc" | ||
| 1382 | |||
| 1383 | COMPATIBLE_MACHINE_cedartrail-nopvr = "cedartrail" | ||
| 1384 | KMACHINE_cedartrail-nopvr = "cedartrail" | ||
| 1385 | KBRANCH_cedartrail-nopvr = "yocto/standard/cedartrail" | ||
| 1386 | KERNEL_FEATURES_append_cedartrail-nopvr += " cfg/smp.scc" | ||
| 1387 | </pre> | ||
| 1388 | <p> | ||
| 1389 | The <code class="filename">KMACHINE</code> statements in the kernel's append file make sure that | ||
| 1390 | the OpenEmbedded build system and the Yocto Linux kernel understand the same machine | ||
| 1391 | names. | ||
| 1392 | </p> | ||
| 1393 | <p> | ||
| 1394 | This append file uses two <code class="filename">KMACHINE</code> statements. | ||
| 1395 | The first is not really necessary but does ensure that the machine known to the | ||
| 1396 | OpenEmbedded build system as <code class="filename">cedartrail</code> maps to the machine | ||
| 1397 | in the kernel also known as <code class="filename">cedartrail</code>: | ||
| 1398 | </p> | ||
| 1399 | <pre class="literallayout"> | ||
| 1400 | KMACHINE_cedartrail = "cedartrail" | ||
| 1401 | </pre> | ||
| 1402 | <p> | ||
| 1403 | </p> | ||
| 1404 | <p> | ||
| 1405 | The second statement is a good example of why the <code class="filename">KMACHINE</code> variable | ||
| 1406 | is needed. | ||
| 1407 | In this example, the OpenEmbedded build system uses the <code class="filename">cedartrail-nopvr</code> | ||
| 1408 | machine name to refer to the Cedar Trail BSP that does not support the propriatory | ||
| 1409 | PowerVR driver. | ||
| 1410 | The kernel, however, uses the machine name <code class="filename">cedartrail</code>. | ||
| 1411 | Thus, the append file must map the <code class="filename">cedartrail-nopvr</code> machine name to | ||
| 1412 | the kernel's <code class="filename">cedartrail</code> name: | ||
| 1413 | </p> | ||
| 1414 | <pre class="literallayout"> | ||
| 1415 | KMACHINE_cedartrail-nopvr = "cedartrail" | ||
| 1416 | </pre> | ||
| 1417 | <p> | ||
| 1418 | </p> | ||
| 1419 | <p> | ||
| 1420 | BSPs that ship with the Yocto Project release provide all mappings between the Yocto | ||
| 1421 | Project kernel machine names and the OpenEmbedded machine names. | ||
| 1422 | Be sure to use the <code class="filename">KMACHINE</code> if you create a BSP and the machine | ||
| 1423 | name you use is different than that used in the kernel. | ||
| 1424 | </p> | ||
| 1425 | </dd> | ||
| 1426 | </dl> | ||
| 1427 | </div> | ||
| 1428 | <div class="glossdiv" title="L"> | ||
| 1429 | <h3 class="title">L</h3> | ||
| 1430 | <dl> | ||
| 1431 | <dt> | ||
| 1432 | <a name="var-LAYERDEPENDS"></a>LAYERDEPENDS</dt> | ||
| 1433 | <dd><p>Lists the layers that this recipe depends upon, separated by spaces. | ||
| 1434 | Optionally, you can specify a specific layer version for a dependency | ||
| 1435 | by adding it to the end of the layer name with a colon, (e.g. "anotherlayer:3" | ||
| 1436 | to be compared against <code class="filename">LAYERVERSION_anotherlayer</code> in this case). | ||
| 1437 | An error will be produced if any dependency is missing or | ||
| 1438 | the version numbers do not match exactly (if specified). | ||
| 1439 | This variable is used in the <code class="filename">conf/layer.conf</code> file | ||
| 1440 | and must be suffixed with the name of the specific layer (e.g. | ||
| 1441 | <code class="filename">LAYERDEPENDS_mylayer</code>).</p></dd> | ||
| 1442 | <dt> | ||
| 1443 | <a name="var-LAYERDIR"></a>LAYERDIR</dt> | ||
| 1444 | <dd><p>When used inside the <code class="filename">layer.conf</code> configuration | ||
| 1445 | file, this variable provides the path of the current layer. | ||
| 1446 | This variable requires immediate expansion | ||
| 1447 | (see the BitBake manual) as lazy expansion can result in | ||
| 1448 | the expansion happening in the wrong directory and therefore | ||
| 1449 | giving the wrong value.</p></dd> | ||
| 1450 | <dt> | ||
| 1451 | <a name="var-LAYERVERSION"></a>LAYERVERSION</dt> | ||
| 1452 | <dd><p>Optionally specifies the version of a layer as a single number. | ||
| 1453 | You can use this within <code class="filename">LAYERDEPENDS</code> for another layer in order to | ||
| 1454 | depend on a specific version of the layer. | ||
| 1455 | This variable is used in the <code class="filename">conf/layer.conf</code> file | ||
| 1456 | and must be suffixed with the name of the specific layer (e.g. | ||
| 1457 | <code class="filename">LAYERVERSION_mylayer</code>).</p></dd> | ||
| 1458 | <dt> | ||
| 1459 | <a name="var-LIC_FILES_CHKSUM"></a>LIC_FILES_CHKSUM</dt> | ||
| 1460 | <dd> | ||
| 1461 | <p>Checksums of the license text in the recipe source code.</p> | ||
| 1462 | <p>This variable tracks changes in license text of the source | ||
| 1463 | code files. | ||
| 1464 | If the license text is changed, it will trigger a build | ||
| 1465 | failure, which gives the developer an opportunity to review any | ||
| 1466 | license change.</p> | ||
| 1467 | <p> | ||
| 1468 | This variable must be defined for all recipes (unless <code class="filename">LICENSE</code> | ||
| 1469 | is set to "CLOSED")</p> | ||
| 1470 | <p>For more information, see the | ||
| 1471 | <a class="link" href="usingpoky-configuring-LIC_FILES_CHKSUM.html" title="3.4.1. Tracking License Changes"> | ||
| 1472 | Tracking License Changes</a> section</p> | ||
| 1473 | </dd> | ||
| 1474 | <dt> | ||
| 1475 | <a name="var-LICENSE"></a>LICENSE</dt> | ||
| 1476 | <dd> | ||
| 1477 | <p> | ||
| 1478 | The list of source licenses for the recipe. | ||
| 1479 | Follow these rules: | ||
| 1480 | </p> | ||
| 1481 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 1482 | <li class="listitem"><p>Do not use spaces within individual | ||
| 1483 | license names.</p></li> | ||
| 1484 | <li class="listitem"><p>Separate license names using | ||
| 1485 | | (pipe) when there is a choice between licenses. | ||
| 1486 | </p></li> | ||
| 1487 | <li class="listitem"><p>Separate license names using | ||
| 1488 | & (ampersand) when multiple licenses exist | ||
| 1489 | that cover different parts of the source. | ||
| 1490 | </p></li> | ||
| 1491 | <li class="listitem"><p>You can use spaces between license | ||
| 1492 | names.</p></li> | ||
| 1493 | </ul></div> | ||
| 1494 | <p> | ||
| 1495 | </p> | ||
| 1496 | <p> | ||
| 1497 | Here are some examples: | ||
| 1498 | </p> | ||
| 1499 | <pre class="literallayout"> | ||
| 1500 | LICENSE = "LGPLv2.1 | GPLv3" | ||
| 1501 | LICENSE = "MPL-1 & LGPLv2.1" | ||
| 1502 | LICENSE = "GPLv2+" | ||
| 1503 | </pre> | ||
| 1504 | <p> | ||
| 1505 | The first example is from the recipes for Qt, which the user | ||
| 1506 | may choose to distribute under either the LGPL version | ||
| 1507 | 2.1 or GPL version 3. | ||
| 1508 | The second example is from Cairo where two licenses cover | ||
| 1509 | different parts of the source code. | ||
| 1510 | The final example is from <code class="filename">sysstat</code>, | ||
| 1511 | which presents a single license. | ||
| 1512 | </p> | ||
| 1513 | </dd> | ||
| 1514 | <dt> | ||
| 1515 | <a name="var-LICENSE_PATH"></a>LICENSE_PATH</dt> | ||
| 1516 | <dd> | ||
| 1517 | <p>Path to additional licenses used during the build. | ||
| 1518 | By default, the OpenEmbedded build system uses <code class="filename">COMMON_LICENSE_DIR</code> | ||
| 1519 | to define the directory that holds common license text used during the build. | ||
| 1520 | The <code class="filename">LICENSE_PATH</code> variable allows you to extend that | ||
| 1521 | location to other areas that have additional licenses: | ||
| 1522 | </p> | ||
| 1523 | <pre class="literallayout"> | ||
| 1524 | LICENSE_PATH += "/path/to/additional/common/licenses" | ||
| 1525 | </pre> | ||
| 1526 | </dd> | ||
| 1527 | </dl> | ||
| 1528 | </div> | ||
| 1529 | <div class="glossdiv" title="M"> | ||
| 1530 | <h3 class="title">M</h3> | ||
| 1531 | <dl> | ||
| 1532 | <dt> | ||
| 1533 | <a name="var-MACHINE"></a>MACHINE</dt> | ||
| 1534 | <dd> | ||
| 1535 | <p> | ||
| 1536 | Specifies the target device for which the image is built. | ||
| 1537 | You define <code class="filename">MACHINE</code> in the | ||
| 1538 | <code class="filename">local.conf</code> file found in the | ||
| 1539 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>. | ||
| 1540 | By default, <code class="filename">MACHINE</code> is set to | ||
| 1541 | "qemux86", which is an x86-based architecture machine to | ||
| 1542 | be emulated using QEMU: | ||
| 1543 | </p> | ||
| 1544 | <pre class="literallayout"> | ||
| 1545 | MACHINE ?= "qemux86" | ||
| 1546 | </pre> | ||
| 1547 | <p> | ||
| 1548 | The variable corresponds to a machine configuration file of the | ||
| 1549 | same name, through which machine-specific configurations are set. | ||
| 1550 | Thus, when <code class="filename">MACHINE</code> is set to "qemux86" there | ||
| 1551 | exists the corresponding <code class="filename">qemux86.conf</code> machine | ||
| 1552 | configuration file, which can be found in the | ||
| 1553 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a> | ||
| 1554 | in <code class="filename">meta/conf/machine</code>. | ||
| 1555 | </p> | ||
| 1556 | <p> | ||
| 1557 | The list of machines supported by the Yocto Project as | ||
| 1558 | shipped include the following: | ||
| 1559 | </p> | ||
| 1560 | <pre class="literallayout"> | ||
| 1561 | MACHINE ?= "qemuarm" | ||
| 1562 | MACHINE ?= "qemumips" | ||
| 1563 | MACHINE ?= "qemuppc" | ||
| 1564 | MACHINE ?= "qemux86" | ||
| 1565 | MACHINE ?= "qemux86-64" | ||
| 1566 | MACHINE ?= "atom-pc" | ||
| 1567 | MACHINE ?= "beagleboard" | ||
| 1568 | MACHINE ?= "mpc8315e-rdb" | ||
| 1569 | MACHINE ?= "routerstationpro" | ||
| 1570 | </pre> | ||
| 1571 | <p> | ||
| 1572 | The last four are Yocto Project reference hardware boards, which | ||
| 1573 | are provided in the <code class="filename">meta-yocto-bsp</code> layer. | ||
| 1574 | </p> | ||
| 1575 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 1576 | <h3 class="title">Note</h3>Adding additional Board Support Package (BSP) layers | ||
| 1577 | to your configuration adds new possible settings for | ||
| 1578 | <code class="filename">MACHINE</code>. | ||
| 1579 | </div> | ||
| 1580 | <p> | ||
| 1581 | </p> | ||
| 1582 | </dd> | ||
| 1583 | <dt> | ||
| 1584 | <a name="var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS"></a>MACHINE_ESSENTIAL_EXTRA_RDEPENDS</dt> | ||
| 1585 | <dd> | ||
| 1586 | <p></p> | ||
| 1587 | <p> | ||
| 1588 | A list of required machine-specific packages to install as part of | ||
| 1589 | the image being built. | ||
| 1590 | The build process depends on these packages being present. | ||
| 1591 | Furthermore, because this is a "machine essential" variable, the list of | ||
| 1592 | packages are essential for the machine to boot. | ||
| 1593 | The impact of this variable affects images based on | ||
| 1594 | <code class="filename">packagegroup-core-boot</code>, | ||
| 1595 | including the <code class="filename">core-image-minimal</code> image. | ||
| 1596 | </p> | ||
| 1597 | <p> | ||
| 1598 | This variable is similar to the | ||
| 1599 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS" title="MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS">MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</a></code> | ||
| 1600 | variable with the exception that the image being built has a build | ||
| 1601 | dependency on the variable's list of packages. | ||
| 1602 | In other words, the image will not build if a file in this list is not found. | ||
| 1603 | </p> | ||
| 1604 | <p> | ||
| 1605 | As an example, suppose the machine for which you are building requires | ||
| 1606 | <code class="filename">example-init</code> to be run during boot to initialize the hardware. | ||
| 1607 | In this case, you would use the following in the machine's | ||
| 1608 | <code class="filename">.conf</code> configuration file: | ||
| 1609 | </p> | ||
| 1610 | <pre class="literallayout"> | ||
| 1611 | MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "example-init" | ||
| 1612 | </pre> | ||
| 1613 | <p> | ||
| 1614 | </p> | ||
| 1615 | </dd> | ||
| 1616 | <dt> | ||
| 1617 | <a name="var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS"></a>MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</dt> | ||
| 1618 | <dd> | ||
| 1619 | <p></p> | ||
| 1620 | <p> | ||
| 1621 | A list of recommended machine-specific packages to install as part of | ||
| 1622 | the image being built. | ||
| 1623 | The build process does not depend on these packages being present. | ||
| 1624 | However, because this is a "machine essential" variable, the list of | ||
| 1625 | packages are essential for the machine to boot. | ||
| 1626 | The impact of this variable affects images based on | ||
| 1627 | <code class="filename">packagegroup-core-boot</code>, | ||
| 1628 | including the <code class="filename">core-image-minimal</code> image. | ||
| 1629 | </p> | ||
| 1630 | <p> | ||
| 1631 | This variable is similar to the | ||
| 1632 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS" title="MACHINE_ESSENTIAL_EXTRA_RDEPENDS">MACHINE_ESSENTIAL_EXTRA_RDEPENDS</a></code> | ||
| 1633 | variable with the exception that the image being built does not have a build | ||
| 1634 | dependency on the variable's list of packages. | ||
| 1635 | In other words, the image will still build if a package in this list is not found. | ||
| 1636 | Typically, this variable is used to handle essential kernel modules, whose | ||
| 1637 | functionality may be selected to be built into the kernel rather than as a module, | ||
| 1638 | in which case a package will not be produced. | ||
| 1639 | </p> | ||
| 1640 | <p> | ||
| 1641 | Consider an example where you have a custom kernel where a specific touchscreen | ||
| 1642 | driver is required for the machine to be usable. | ||
| 1643 | However, the driver can be built as a module or | ||
| 1644 | into the kernel depending on the kernel configuration. | ||
| 1645 | If the driver is built as a module, you want it to be installed. | ||
| 1646 | But, when the driver is built into the kernel, you still want the | ||
| 1647 | build to succeed. | ||
| 1648 | This variable sets up a "recommends" relationship so that in the latter case, | ||
| 1649 | the build will not fail due to the missing package. | ||
| 1650 | To accomplish this, assuming the package for the module was called | ||
| 1651 | <code class="filename">kernel-module-ab123</code>, you would use the | ||
| 1652 | following in the machine's <code class="filename">.conf</code> configuration | ||
| 1653 | file: | ||
| 1654 | </p> | ||
| 1655 | <pre class="literallayout"> | ||
| 1656 | MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS += "kernel-module-ab123" | ||
| 1657 | </pre> | ||
| 1658 | <p> | ||
| 1659 | </p> | ||
| 1660 | <p> | ||
| 1661 | Some examples of these machine essentials are flash, screen, keyboard, mouse, | ||
| 1662 | or touchscreen drivers (depending on the machine). | ||
| 1663 | </p> | ||
| 1664 | </dd> | ||
| 1665 | <dt> | ||
| 1666 | <a name="var-MACHINE_EXTRA_RDEPENDS"></a>MACHINE_EXTRA_RDEPENDS</dt> | ||
| 1667 | <dd> | ||
| 1668 | <p> | ||
| 1669 | A list of machine-specific packages to install as part of the | ||
| 1670 | image being built that are not essential for the machine to boot. | ||
| 1671 | However, the build process for more fully-featured images | ||
| 1672 | depends on the packages being present. | ||
| 1673 | </p> | ||
| 1674 | <p> | ||
| 1675 | This variable affects all images based on | ||
| 1676 | <code class="filename">packagegroup-base</code>, which does not include the | ||
| 1677 | <code class="filename">core-image-minimal</code> or <code class="filename">core-image-basic</code> | ||
| 1678 | images. | ||
| 1679 | </p> | ||
| 1680 | <p> | ||
| 1681 | The variable is similar to the | ||
| 1682 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_EXTRA_RRECOMMENDS" title="MACHINE_EXTRA_RRECOMMENDS">MACHINE_EXTRA_RRECOMMENDS</a></code> | ||
| 1683 | variable with the exception that the image being built has a build | ||
| 1684 | dependency on the variable's list of packages. | ||
| 1685 | In other words, the image will not build if a file in this list is not found. | ||
| 1686 | </p> | ||
| 1687 | <p> | ||
| 1688 | An example is a machine that has WiFi capability but is not essential | ||
| 1689 | For the machine to boot the image. | ||
| 1690 | However, if you are building a more fully-featured image, you want to enable | ||
| 1691 | the WiFi. | ||
| 1692 | The package containing the firmware for the WiFi hardware is always | ||
| 1693 | expected to exist, so it is acceptable for the build process to depend upon | ||
| 1694 | finding the package. | ||
| 1695 | In this case, assuming the package for the firmware was called | ||
| 1696 | <code class="filename">wifidriver-firmware</code>, you would use the following in the | ||
| 1697 | <code class="filename">.conf</code> file for the machine: | ||
| 1698 | </p> | ||
| 1699 | <pre class="literallayout"> | ||
| 1700 | MACHINE_EXTRA_RDEPENDS += "wifidriver-firmware" | ||
| 1701 | </pre> | ||
| 1702 | <p> | ||
| 1703 | </p> | ||
| 1704 | </dd> | ||
| 1705 | <dt> | ||
| 1706 | <a name="var-MACHINE_EXTRA_RRECOMMENDS"></a>MACHINE_EXTRA_RRECOMMENDS</dt> | ||
| 1707 | <dd> | ||
| 1708 | <p></p> | ||
| 1709 | <p> | ||
| 1710 | A list of machine-specific packages to install as part of the | ||
| 1711 | image being built that are not essential for booting the machine. | ||
| 1712 | The image being built has no build dependency on this list of packages. | ||
| 1713 | </p> | ||
| 1714 | <p> | ||
| 1715 | This variable affects only images based on | ||
| 1716 | <code class="filename">packagegroup-base</code>, which does not include the | ||
| 1717 | <code class="filename">core-image-minimal</code> or <code class="filename">core-image-basic</code> | ||
| 1718 | images. | ||
| 1719 | </p> | ||
| 1720 | <p> | ||
| 1721 | This variable is similar to the | ||
| 1722 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_EXTRA_RDEPENDS" title="MACHINE_EXTRA_RDEPENDS">MACHINE_EXTRA_RDEPENDS</a></code> | ||
| 1723 | variable with the exception that the image being built does not have a build | ||
| 1724 | dependency on the variable's list of packages. | ||
| 1725 | In other words, the image will build if a file in this list is not found. | ||
| 1726 | </p> | ||
| 1727 | <p> | ||
| 1728 | An example is a machine that has WiFi capability but is not essential | ||
| 1729 | For the machine to boot the image. | ||
| 1730 | However, if you are building a more fully-featured image, you want to enable | ||
| 1731 | WiFi. | ||
| 1732 | In this case, the package containing the WiFi kernel module will not be produced | ||
| 1733 | if the WiFi driver is built into the kernel, in which case you still want the | ||
| 1734 | build to succeed instead of failing as a result of the package not being found. | ||
| 1735 | To accomplish this, assuming the package for the module was called | ||
| 1736 | <code class="filename">kernel-module-examplewifi</code>, you would use the | ||
| 1737 | following in the <code class="filename">.conf</code> file for the machine: | ||
| 1738 | </p> | ||
| 1739 | <pre class="literallayout"> | ||
| 1740 | MACHINE_EXTRA_RRECOMMENDS += "kernel-module-examplewifi" | ||
| 1741 | </pre> | ||
| 1742 | <p> | ||
| 1743 | </p> | ||
| 1744 | </dd> | ||
| 1745 | <dt> | ||
| 1746 | <a name="var-MACHINE_FEATURES"></a>MACHINE_FEATURES</dt> | ||
| 1747 | <dd> | ||
| 1748 | <p>Specifies the list of hardware features the | ||
| 1749 | <a class="link" href="ref-variables-glos.html#var-MACHINE" title="MACHINE">MACHINE</a> supports. | ||
| 1750 | For example, including the "bluetooth" feature causes the | ||
| 1751 | <code class="filename">bluez</code> bluetooth daemon to be built and | ||
| 1752 | added to the image. | ||
| 1753 | It also causes the <code class="filename">connman</code> recipe | ||
| 1754 | to look at <code class="filename">MACHINE_FEATURES</code> and when it | ||
| 1755 | finds "bluetooth" there it enables the bluetooth | ||
| 1756 | support in ConnMan. | ||
| 1757 | </p> | ||
| 1758 | <p> | ||
| 1759 | For a list of features supported by the Yocto Project as shipped, | ||
| 1760 | see the "<a class="link" href="ref-features-machine.html" title="9.2. Machine">Machine</a>" section. | ||
| 1761 | </p> | ||
| 1762 | </dd> | ||
| 1763 | <dt> | ||
| 1764 | <a name="var-MACHINE_FEATURES_BACKFILL"></a>MACHINE_FEATURES_BACKFILL</dt> | ||
| 1765 | <dd> | ||
| 1766 | <p>Features to be added to | ||
| 1767 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_FEATURES" title="MACHINE_FEATURES">MACHINE_FEATURES</a></code> | ||
| 1768 | if not also present in | ||
| 1769 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_FEATURES_BACKFILL_CONSIDERED" title="MACHINE_FEATURES_BACKFILL_CONSIDERED">MACHINE_FEATURES_BACKFILL_CONSIDERED</a></code>. | ||
| 1770 | </p> | ||
| 1771 | <p> | ||
| 1772 | This variable is set in the <code class="filename">meta/conf/bitbake.conf</code> file. | ||
| 1773 | It is not intended to be user-configurable. | ||
| 1774 | It is best to just reference the variable to see which machine features are | ||
| 1775 | being backfilled for all machine configurations. | ||
| 1776 | See the <a class="link" href="ref-features-backfill.html" title="9.4. Feature Backfilling">Feature backfilling</a> section for | ||
| 1777 | more information. | ||
| 1778 | </p> | ||
| 1779 | </dd> | ||
| 1780 | <dt> | ||
| 1781 | <a name="var-MACHINE_FEATURES_BACKFILL_CONSIDERED"></a>MACHINE_FEATURES_BACKFILL_CONSIDERED</dt> | ||
| 1782 | <dd><p>Features from | ||
| 1783 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_FEATURES_BACKFILL" title="MACHINE_FEATURES_BACKFILL">MACHINE_FEATURES_BACKFILL</a></code> | ||
| 1784 | that should not be backfilled (i.e. added to | ||
| 1785 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_FEATURES" title="MACHINE_FEATURES">MACHINE_FEATURES</a></code>) | ||
| 1786 | during the build. | ||
| 1787 | See the <a class="link" href="ref-features-backfill.html" title="9.4. Feature Backfilling">Feature backfilling</a> section for | ||
| 1788 | more information. | ||
| 1789 | </p></dd> | ||
| 1790 | <dt> | ||
| 1791 | <a name="var-MAINTAINER"></a>MAINTAINER</dt> | ||
| 1792 | <dd><p>The email address of the distribution maintainer.</p></dd> | ||
| 1793 | <dt> | ||
| 1794 | <a name="var-MLPREFIX"></a>MLPREFIX</dt> | ||
| 1795 | <dd><p> | ||
| 1796 | Specifies a prefix has been added to | ||
| 1797 | <a class="link" href="ref-variables-glos.html#var-PN" title="PN"><code class="filename">PN</code></a> to create a special version | ||
| 1798 | of a recipe or package, such as a multilib version. | ||
| 1799 | The variable is used in places where the prefix needs to be | ||
| 1800 | added to or removed from a the name (e.g. the | ||
| 1801 | <a class="link" href="ref-variables-glos.html#var-BPN" title="BPN"><code class="filename">BPN</code></a> variable). | ||
| 1802 | <code class="filename">MLPREFIX</code> gets set when a prefix has been | ||
| 1803 | added to <code class="filename">PN</code>. | ||
| 1804 | </p></dd> | ||
| 1805 | <dt> | ||
| 1806 | <a name="var-MULTIMACH_TARGET_SYS"></a>MULTIMACH_TARGET_SYS</dt> | ||
| 1807 | <dd><p> | ||
| 1808 | Separates files for different machines such that you can build | ||
| 1809 | for multiple target machines using the same output directories. | ||
| 1810 | See the <a class="link" href="ref-variables-glos.html#var-STAMP" title="STAMP"><code class="filename">STAMP</code></a> variable | ||
| 1811 | for an example. | ||
| 1812 | </p></dd> | ||
| 1813 | </dl> | ||
| 1814 | </div> | ||
| 1815 | <div class="glossdiv" title="O"> | ||
| 1816 | <h3 class="title">O</h3> | ||
| 1817 | <dl> | ||
| 1818 | <dt> | ||
| 1819 | <a name="var-OE_TERMINAL"></a>OE_TERMINAL</dt> | ||
| 1820 | <dd> | ||
| 1821 | <p> | ||
| 1822 | Controls how the OpenEmbedded build system spawns | ||
| 1823 | interactive terminals on the host development system | ||
| 1824 | (e.g. using the BitBake command with the | ||
| 1825 | <code class="filename">-c devshell</code> command-line option). | ||
| 1826 | For more information, see the | ||
| 1827 | "<a class="link" href="../dev-manual/platdev-appdev-devshell.html" target="_self">Using a Development Shell</a>" section | ||
| 1828 | in the Yocto Project Development Manual. | ||
| 1829 | </p> | ||
| 1830 | <p> | ||
| 1831 | You can use the following values for the | ||
| 1832 | <code class="filename">OE_TERMINAL</code> variable: | ||
| 1833 | </p> | ||
| 1834 | <pre class="literallayout"> | ||
| 1835 | auto | ||
| 1836 | gnome | ||
| 1837 | xfce | ||
| 1838 | rxvt | ||
| 1839 | screen | ||
| 1840 | konsole | ||
| 1841 | none | ||
| 1842 | </pre> | ||
| 1843 | <p> | ||
| 1844 | </p> | ||
| 1845 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 1846 | <h3 class="title">Note</h3>Konsole support only works for KDE 3.x. | ||
| 1847 | Also, "auto" is the default behavior for | ||
| 1848 | <code class="filename">OE_TERMINAL</code> | ||
| 1849 | </div> | ||
| 1850 | <p> | ||
| 1851 | </p> | ||
| 1852 | </dd> | ||
| 1853 | </dl> | ||
| 1854 | </div> | ||
| 1855 | <div class="glossdiv" title="P"> | ||
| 1856 | <h3 class="title">P</h3> | ||
| 1857 | <dl> | ||
| 1858 | <dt> | ||
| 1859 | <a name="var-P"></a>P</dt> | ||
| 1860 | <dd> | ||
| 1861 | <p>The recipe name and version. | ||
| 1862 | <code class="filename">P</code> is comprised of the following: | ||
| 1863 | </p> | ||
| 1864 | <pre class="literallayout"> | ||
| 1865 | ${PN}-${PV} | ||
| 1866 | </pre> | ||
| 1867 | </dd> | ||
| 1868 | <dt> | ||
| 1869 | <a name="var-PACKAGE_ARCH"></a>PACKAGE_ARCH</dt> | ||
| 1870 | <dd><p>The architecture of the resulting package or packages.</p></dd> | ||
| 1871 | <dt> | ||
| 1872 | <a name="var-PACKAGE_BEFORE_PN"></a>PACKAGE_BEFORE_PN</dt> | ||
| 1873 | <dd><p>Enables easily adding packages to | ||
| 1874 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-PACKAGES" title="PACKAGES">PACKAGES</a></code> | ||
| 1875 | before <code class="filename">${PN}</code> so that the packages can pick | ||
| 1876 | up files that would normally be included in the default package.</p></dd> | ||
| 1877 | <dt> | ||
| 1878 | <a name="var-PACKAGE_CLASSES"></a>PACKAGE_CLASSES</dt> | ||
| 1879 | <dd> | ||
| 1880 | <p>This variable, which is set in the <code class="filename">local.conf</code> configuration | ||
| 1881 | file found in the <code class="filename">conf</code> folder of the | ||
| 1882 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>, | ||
| 1883 | specifies the package manager to use when packaging data. | ||
| 1884 | You can provide one or more arguments for the variable with the first | ||
| 1885 | argument being the package manager used to create images: | ||
| 1886 | </p> | ||
| 1887 | <pre class="literallayout"> | ||
| 1888 | PACKAGE_CLASSES ?= "package_rpm package_deb package_ipk" | ||
| 1889 | </pre> | ||
| 1890 | <p> | ||
| 1891 | For information on build performance effects as a result of the | ||
| 1892 | package manager use, see | ||
| 1893 | <a class="link" href="ref-classes-package.html" title="7.13. Packaging - package*.bbclass">Packaging - <code class="filename">package*.bbclass</code></a> | ||
| 1894 | in this manual. | ||
| 1895 | </p> | ||
| 1896 | </dd> | ||
| 1897 | <dt> | ||
| 1898 | <a name="var-PACKAGE_EXTRA_ARCHS"></a>PACKAGE_EXTRA_ARCHS</dt> | ||
| 1899 | <dd><p>Specifies the list of architectures compatible with the device CPU. | ||
| 1900 | This variable is useful when you build for several different devices that use | ||
| 1901 | miscellaneous processors such as XScale and ARM926-EJS).</p></dd> | ||
| 1902 | <dt> | ||
| 1903 | <a name="var-PACKAGECONFIG"></a>PACKAGECONFIG</dt> | ||
| 1904 | <dd> | ||
| 1905 | <p> | ||
| 1906 | This variable provides a means of enabling or disabling | ||
| 1907 | features of a recipe on a per-recipe basis. | ||
| 1908 | The <code class="filename">PACKAGECONFIG</code> | ||
| 1909 | variable itself specifies a space-separated list of the | ||
| 1910 | features to enable. | ||
| 1911 | The features themselves are specified as flags on the | ||
| 1912 | <code class="filename">PACKAGECONFIG</code> variable. | ||
| 1913 | You can provide up to four arguments, which are separated by | ||
| 1914 | commas, to determine the behavior of each feature | ||
| 1915 | when it is enabled or disabled. | ||
| 1916 | You can omit any argument you like but must retain the | ||
| 1917 | separating commas. | ||
| 1918 | The arguments specify the following: | ||
| 1919 | </p> | ||
| 1920 | <div class="orderedlist"><ol class="orderedlist" type="1"> | ||
| 1921 | <li class="listitem"><p>Extra arguments | ||
| 1922 | that should be added to the configure script argument list | ||
| 1923 | (<a class="link" href="ref-variables-glos.html#var-EXTRA_OECONF" title="EXTRA_OECONF"><code class="filename">EXTRA_OECONF</code></a>) | ||
| 1924 | if the feature is enabled.</p></li> | ||
| 1925 | <li class="listitem"><p>Extra arguments | ||
| 1926 | that should be added to <code class="filename">EXTRA_OECONF</code> | ||
| 1927 | if the feature is disabled. | ||
| 1928 | </p></li> | ||
| 1929 | <li class="listitem"><p>Additional build dependencies | ||
| 1930 | (<a class="link" href="ref-variables-glos.html#var-DEPENDS" title="DEPENDS"><code class="filename">DEPENDS</code></a>) | ||
| 1931 | that should be added if the feature is enabled. | ||
| 1932 | </p></li> | ||
| 1933 | <li class="listitem"><p>Additional runtime dependencies | ||
| 1934 | (<a class="link" href="ref-variables-glos.html#var-RDEPENDS" title="RDEPENDS"><code class="filename">RDEPENDS</code></a>) | ||
| 1935 | that should be added if the feature is enabled. | ||
| 1936 | </p></li> | ||
| 1937 | </ol></div> | ||
| 1938 | <p> | ||
| 1939 | </p> | ||
| 1940 | <p> | ||
| 1941 | Consider the following example taken from the | ||
| 1942 | <code class="filename">librsvg</code> recipe. | ||
| 1943 | In this example the feature is <code class="filename">croco</code>, which | ||
| 1944 | has three arguments that determine the feature's behavior. | ||
| 1945 | </p> | ||
| 1946 | <pre class="literallayout"> | ||
| 1947 | PACKAGECONFIG ??= "croco" | ||
| 1948 | PACKAGECONFIG[croco] = "--with-croco,--without-croco,libcroco" | ||
| 1949 | </pre> | ||
| 1950 | <p> | ||
| 1951 | The <code class="filename">--with-croco</code> and | ||
| 1952 | <code class="filename">libcroco</code> arguments apply only if | ||
| 1953 | the feature is enabled. | ||
| 1954 | In this case, <code class="filename">--with-croco</code> is | ||
| 1955 | added to the configure script argument list and | ||
| 1956 | <code class="filename">libcroco</code> is added to | ||
| 1957 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-DEPENDS" title="DEPENDS">DEPENDS</a></code>. | ||
| 1958 | On the other hand, if the feature is disabled say through | ||
| 1959 | a <code class="filename">.bbappend</code> file in another layer, then | ||
| 1960 | the second argument <code class="filename">--without-croco</code> is | ||
| 1961 | added to the configure script rather than | ||
| 1962 | <code class="filename">--with-croco</code>. | ||
| 1963 | </p> | ||
| 1964 | </dd> | ||
| 1965 | <dt> | ||
| 1966 | <a name="var-PACKAGES"></a>PACKAGES</dt> | ||
| 1967 | <dd> | ||
| 1968 | <p>The list of packages to be created from the recipe. | ||
| 1969 | The default value is the following: | ||
| 1970 | </p> | ||
| 1971 | <pre class="literallayout"> | ||
| 1972 | ${PN}-dbg ${PN}-staticdev ${PN}-dev ${PN}-doc ${PN}-locale ${PACKAGE_BEFORE_PN} ${PN} | ||
| 1973 | </pre> | ||
| 1974 | </dd> | ||
| 1975 | <dt> | ||
| 1976 | <a name="var-PACKAGES_DYNAMIC"></a>PACKAGES_DYNAMIC</dt> | ||
| 1977 | <dd> | ||
| 1978 | <p> | ||
| 1979 | A promise that your recipe satisfies runtime dependencies | ||
| 1980 | for optional modules that are found in other recipes. | ||
| 1981 | <code class="filename">PACKAGES_DYNAMIC</code> | ||
| 1982 | does not actually satisfy the dependencies, it only states that | ||
| 1983 | they should be satisfied. | ||
| 1984 | For example, if a hard, runtime dependency | ||
| 1985 | (<code class="filename">RDEPENDS</code>) of another package is satisfied | ||
| 1986 | at build time through the <code class="filename">PACKAGES_DYNAMIC</code> | ||
| 1987 | variable, but a package with the module name is never actually | ||
| 1988 | produced, then the other package will be broken. | ||
| 1989 | Thus, if you attempt to include that package in an image, | ||
| 1990 | you will get a dependency failure from the packaging system | ||
| 1991 | during <code class="filename">do_rootfs</code>. | ||
| 1992 | Typically, if there is a chance that such a situation can | ||
| 1993 | occur and the package that is not created is valid | ||
| 1994 | without the dependency being satisfied, then you should use | ||
| 1995 | <code class="filename">RRECOMMENDS</code> (a soft runtime dependency) | ||
| 1996 | instead of <code class="filename">RDEPENDS</code>. | ||
| 1997 | </p> | ||
| 1998 | <p> | ||
| 1999 | For an example of how to use the <code class="filename">PACKAGES_DYNAMIC</code> | ||
| 2000 | variable when you are splitting packages, see the | ||
| 2001 | "<a class="link" href="../dev-manual/handling-optional-module-packaging.html" target="_self">Handling Optional Module Packaging</a>" section | ||
| 2002 | in the Yocto Project Development Manual. | ||
| 2003 | </p> | ||
| 2004 | </dd> | ||
| 2005 | <dt> | ||
| 2006 | <a name="var-PARALLEL_MAKE"></a>PARALLEL_MAKE</dt> | ||
| 2007 | <dd><p>Specifies extra options that are passed to the <code class="filename">make</code> command during the | ||
| 2008 | compile tasks. | ||
| 2009 | This variable is usually in the form <code class="filename">-j 4</code>, where the number | ||
| 2010 | represents the maximum number of parallel threads make can run. | ||
| 2011 | If you development host supports multiple cores a good rule of thumb is to set | ||
| 2012 | this variable to twice the number of cores on the host.</p></dd> | ||
| 2013 | <dt> | ||
| 2014 | <a name="var-PF"></a>PF</dt> | ||
| 2015 | <dd> | ||
| 2016 | <p>Specifies the recipe or package name and includes all version and revision | ||
| 2017 | numbers (i.e. <code class="filename">eglibc-2.13-r20+svnr15508/</code> and | ||
| 2018 | <code class="filename">bash-4.2-r1/</code>). | ||
| 2019 | This variable is comprised of the following: | ||
| 2020 | </p> | ||
| 2021 | <pre class="literallayout"> | ||
| 2022 | ${PN}-${EXTENDPE}${PV}-${PR} | ||
| 2023 | </pre> | ||
| 2024 | </dd> | ||
| 2025 | <dt> | ||
| 2026 | <a name="var-PN"></a>PN</dt> | ||
| 2027 | <dd> | ||
| 2028 | <p>This variable can have two separate functions depending on the context: a recipe | ||
| 2029 | name or a resulting package name.</p> | ||
| 2030 | <p><code class="filename">PN</code> refers to a recipe name in the context of a file used | ||
| 2031 | by the OpenEmbedded build system as input to create a package. | ||
| 2032 | The name is normally extracted from the recipe file name. | ||
| 2033 | For example, if the recipe is named | ||
| 2034 | <code class="filename">expat_2.0.1.bb</code>, then the default value of <code class="filename">PN</code> | ||
| 2035 | will be "expat".</p> | ||
| 2036 | <p> | ||
| 2037 | The variable refers to a package name in the context of a file created or produced by the | ||
| 2038 | OpenEmbedded build system.</p> | ||
| 2039 | <p>If applicable, the <code class="filename">PN</code> variable also contains any special | ||
| 2040 | suffix or prefix. | ||
| 2041 | For example, using <code class="filename">bash</code> to build packages for the native | ||
| 2042 | machine, <code class="filename">PN</code> is <code class="filename">bash-native</code>. | ||
| 2043 | Using <code class="filename">bash</code> to build packages for the target and for Multilib, | ||
| 2044 | <code class="filename">PN</code> would be <code class="filename">bash</code> and | ||
| 2045 | <code class="filename">lib64-bash</code>, respectively. | ||
| 2046 | </p> | ||
| 2047 | </dd> | ||
| 2048 | <dt> | ||
| 2049 | <a name="var-PR"></a>PR</dt> | ||
| 2050 | <dd><p>The revision of the recipe. | ||
| 2051 | The default value for this variable is "r0". | ||
| 2052 | </p></dd> | ||
| 2053 | <dt> | ||
| 2054 | <a name="var-PRINC"></a>PRINC</dt> | ||
| 2055 | <dd> | ||
| 2056 | <p>Causes the <code class="filename">PR</code> variable of | ||
| 2057 | <code class="filename">.bbappend</code> files to dynamically increment. | ||
| 2058 | This increment minimizes the impact of layer ordering.</p> | ||
| 2059 | <p>In order to ensure multiple <code class="filename">.bbappend</code> files can co-exist, | ||
| 2060 | <code class="filename">PRINC</code> should be self referencing. | ||
| 2061 | This variable defaults to 0.</p> | ||
| 2062 | <p>Following is an example that increments <code class="filename">PR</code> by two: | ||
| 2063 | </p> | ||
| 2064 | <pre class="literallayout"> | ||
| 2065 | PRINC := "${@int(PRINC) + 2}" | ||
| 2066 | </pre> | ||
| 2067 | <p> | ||
| 2068 | It is adviseable not to use strings such as ".= '.1'" with the variable because | ||
| 2069 | this usage is very sensitive to layer ordering. | ||
| 2070 | Explicit assignments should be avoided as they cannot adequately represent multiple | ||
| 2071 | <code class="filename">.bbappend</code> files.</p> | ||
| 2072 | </dd> | ||
| 2073 | <dt> | ||
| 2074 | <a name="var-PV"></a>PV</dt> | ||
| 2075 | <dd><p>The version of the recipe. | ||
| 2076 | The version is normally extracted from the recipe filename. | ||
| 2077 | For example, if the recipe is named | ||
| 2078 | <code class="filename">expat_2.0.1.bb</code>, then the default value of <code class="filename">PV</code> | ||
| 2079 | will be "2.0.1". | ||
| 2080 | <code class="filename">PV</code> is generally not overridden within | ||
| 2081 | a recipe unless it is building an unstable (i.e. development) version from a source code repository | ||
| 2082 | (e.g. Git or Subversion). | ||
| 2083 | </p></dd> | ||
| 2084 | <dt> | ||
| 2085 | <a name="var-PE"></a>PE</dt> | ||
| 2086 | <dd><p> | ||
| 2087 | the epoch of the recipe. | ||
| 2088 | The default value is "0". | ||
| 2089 | The field is used to make upgrades possible when the versioning scheme changes in | ||
| 2090 | some backwards incompatible way. | ||
| 2091 | </p></dd> | ||
| 2092 | <dt> | ||
| 2093 | <a name="var-PREFERRED_PROVIDER"></a>PREFERRED_PROVIDER</dt> | ||
| 2094 | <dd> | ||
| 2095 | <p> | ||
| 2096 | If multiple recipes provide an item, this variable | ||
| 2097 | determines which recipe should be given preference. | ||
| 2098 | The variable must always be suffixed with the name of the | ||
| 2099 | provided item, and should be set to the | ||
| 2100 | <code class="filename">PN</code> of the recipe | ||
| 2101 | to which you want to give precedence. | ||
| 2102 | Here is an example: | ||
| 2103 | </p> | ||
| 2104 | <pre class="literallayout"> | ||
| 2105 | PREFERRED_PROVIDER_virtual/xserver = "xserver-xf86" | ||
| 2106 | </pre> | ||
| 2107 | <p> | ||
| 2108 | </p> | ||
| 2109 | </dd> | ||
| 2110 | <dt> | ||
| 2111 | <a name="var-PREFERRED_VERSION"></a>PREFERRED_VERSION</dt> | ||
| 2112 | <dd> | ||
| 2113 | <p> | ||
| 2114 | If there are multiple versions of recipes available, this | ||
| 2115 | variable determines which recipe should be given preference. | ||
| 2116 | The variable must always be suffixed with the <code class="filename">PN</code> | ||
| 2117 | for which to select, and should be set to the | ||
| 2118 | <code class="filename">PV</code> to which you want to give precedence. | ||
| 2119 | You can use the "<code class="filename">%</code>" character as a wildcard | ||
| 2120 | to match any number of characters, which can be useful when | ||
| 2121 | specifying versions that contain long revision number that could | ||
| 2122 | potentially change. | ||
| 2123 | Here are two examples: | ||
| 2124 | </p> | ||
| 2125 | <pre class="literallayout"> | ||
| 2126 | PREFERRED_VERSION_python = "2.6.6" | ||
| 2127 | PREFERRED_VERSION_linux-yocto = "3.0+git%" | ||
| 2128 | </pre> | ||
| 2129 | <p> | ||
| 2130 | </p> | ||
| 2131 | </dd> | ||
| 2132 | </dl> | ||
| 2133 | </div> | ||
| 2134 | <div class="glossdiv" title="R"> | ||
| 2135 | <h3 class="title">R</h3> | ||
| 2136 | <dl> | ||
| 2137 | <dt> | ||
| 2138 | <a name="var-RCONFLICTS"></a>RCONFLICTS</dt> | ||
| 2139 | <dd> | ||
| 2140 | <p>The list of packages that conflict with a package. | ||
| 2141 | Note that the package will not be installed if the conflicting packages are not | ||
| 2142 | first removed.</p> | ||
| 2143 | <p> | ||
| 2144 | Like all package-controlling variables, you must always use them in | ||
| 2145 | conjunction with a package name override. | ||
| 2146 | Here is an example: | ||
| 2147 | </p> | ||
| 2148 | <pre class="literallayout"> | ||
| 2149 | RCONFLICTS_${PN} = "another-conflicting-package-name" | ||
| 2150 | </pre> | ||
| 2151 | <p> | ||
| 2152 | </p> | ||
| 2153 | </dd> | ||
| 2154 | <dt> | ||
| 2155 | <a name="var-RDEPENDS"></a>RDEPENDS</dt> | ||
| 2156 | <dd> | ||
| 2157 | <p> | ||
| 2158 | Lists a package's run-time dependencies (i.e. other packages) | ||
| 2159 | that must be installed for the package to be built. | ||
| 2160 | In other words, in order for the package to be built and | ||
| 2161 | run correctly, it depends on the listed packages. | ||
| 2162 | If a package in this list cannot be found, it is probable | ||
| 2163 | that a dependency error would occur before the build. | ||
| 2164 | </p> | ||
| 2165 | <p> | ||
| 2166 | The names of the variables you list with | ||
| 2167 | <code class="filename">RDEPENDS</code> must be the names of other | ||
| 2168 | packages as listed in the | ||
| 2169 | <a class="link" href="ref-variables-glos.html#var-PACKAGES" title="PACKAGES"><code class="filename">PACKAGES</code></a> | ||
| 2170 | variable. | ||
| 2171 | You should not list recipe names (<code class="filename">PN</code>). | ||
| 2172 | </p> | ||
| 2173 | <p> | ||
| 2174 | Because the <code class="filename">RDEPENDS</code> variable applies | ||
| 2175 | to packages being built, you should | ||
| 2176 | always attach a package name to the variable to specify the | ||
| 2177 | particular run-time package that has the dependency. | ||
| 2178 | For example, suppose you are building a development package | ||
| 2179 | that depends on the <code class="filename">perl</code> package. | ||
| 2180 | In this case, you would use the following | ||
| 2181 | <code class="filename">RDEPENDS</code> statement: | ||
| 2182 | </p> | ||
| 2183 | <pre class="literallayout"> | ||
| 2184 | RDEPENDS_${PN}-dev += "perl" | ||
| 2185 | </pre> | ||
| 2186 | <p> | ||
| 2187 | In the example, the package name | ||
| 2188 | (<code class="filename">${PN}-dev</code>) must appear as it would | ||
| 2189 | in the | ||
| 2190 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-PACKAGES" title="PACKAGES">PACKAGES</a></code> | ||
| 2191 | namespace before any renaming of the output package by | ||
| 2192 | classes like <code class="filename">debian.bbclass</code>. | ||
| 2193 | </p> | ||
| 2194 | <p> | ||
| 2195 | In many cases you do not need to explicitly add dependencies | ||
| 2196 | to <code class="filename">RDEPENDS</code> since some automatic | ||
| 2197 | handling occurs: | ||
| 2198 | </p> | ||
| 2199 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 2200 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">shlibdeps</code></em></span>: If | ||
| 2201 | a run-time package contains a shared library | ||
| 2202 | (<code class="filename">.so</code>), the build | ||
| 2203 | processes the library in order to determine other | ||
| 2204 | libraries to which it is dynamically linked. | ||
| 2205 | The build process adds these libraries to | ||
| 2206 | <code class="filename">RDEPENDS</code> when creating the run-time | ||
| 2207 | package.</p></li> | ||
| 2208 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">pcdeps</code></em></span>: If | ||
| 2209 | the package ships a <code class="filename">pkg-config</code> | ||
| 2210 | information file, the build process uses this file | ||
| 2211 | to add items to the <code class="filename">RDEPENDS</code> | ||
| 2212 | variable to create the run-time packages. | ||
| 2213 | </p></li> | ||
| 2214 | </ul></div> | ||
| 2215 | <p> | ||
| 2216 | </p> | ||
| 2217 | </dd> | ||
| 2218 | <dt> | ||
| 2219 | <a name="var-RRECOMMENDS"></a>RRECOMMENDS</dt> | ||
| 2220 | <dd> | ||
| 2221 | <p> | ||
| 2222 | A list of packages that extend the usability of a package being | ||
| 2223 | built. | ||
| 2224 | The package being built does not depend on this list of packages in | ||
| 2225 | order to successfully build, but needs them for the extended usability. | ||
| 2226 | To specify runtime dependencies for packages, see the | ||
| 2227 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-RDEPENDS" title="RDEPENDS">RDEPENDS</a></code> variable. | ||
| 2228 | </p> | ||
| 2229 | <p> | ||
| 2230 | The OpenEmbedded build process automatically installs the list of packages | ||
| 2231 | as part of the built package. | ||
| 2232 | However, you can remove them later if you want. | ||
| 2233 | If, during the build, a package from the list cannot be found, the build | ||
| 2234 | process continues without an error. | ||
| 2235 | </p> | ||
| 2236 | <p> | ||
| 2237 | Because the <code class="filename">RRECOMMENDS</code> variable applies to packages | ||
| 2238 | being built, you should | ||
| 2239 | always attach an override to the variable to specify the particular package | ||
| 2240 | whose usability is being extended. | ||
| 2241 | For example, suppose you are building a development package that is extended | ||
| 2242 | to support wireless functionality. | ||
| 2243 | In this case, you would use the following: | ||
| 2244 | </p> | ||
| 2245 | <pre class="literallayout"> | ||
| 2246 | RRECOMMENDS_${PN}-dev += "<wireless_package_name>" | ||
| 2247 | </pre> | ||
| 2248 | <p> | ||
| 2249 | In the example, the package name (<code class="filename">${PN}-dev</code>) must | ||
| 2250 | appear as it would in the | ||
| 2251 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-PACKAGES" title="PACKAGES">PACKAGES</a></code> namespace before any | ||
| 2252 | renaming of the output package by classes like <code class="filename">debian.bbclass</code>. | ||
| 2253 | </p> | ||
| 2254 | </dd> | ||
| 2255 | <dt> | ||
| 2256 | <a name="var-RREPLACES"></a>RREPLACES</dt> | ||
| 2257 | <dd><p>The list of packages that are replaced with this package.</p></dd> | ||
| 2258 | </dl> | ||
| 2259 | </div> | ||
| 2260 | <div class="glossdiv" title="S"> | ||
| 2261 | <h3 class="title">S</h3> | ||
| 2262 | <dl> | ||
| 2263 | <dt> | ||
| 2264 | <a name="var-S"></a>S</dt> | ||
| 2265 | <dd> | ||
| 2266 | <p> | ||
| 2267 | The location in the <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a> | ||
| 2268 | where unpacked package source code resides. | ||
| 2269 | This location is within the working directory | ||
| 2270 | (<code class="filename"><a class="link" href="ref-variables-glos.html#var-WORKDIR" title="WORKDIR">WORKDIR</a></code>), which | ||
| 2271 | is not static. | ||
| 2272 | The unpacked source location depends on the package name | ||
| 2273 | (<code class="filename"><a class="link" href="ref-variables-glos.html#var-PN" title="PN">PN</a></code>) and | ||
| 2274 | package version (<code class="filename"><a class="link" href="ref-variables-glos.html#var-PV" title="PV">PV</a></code>) as | ||
| 2275 | follows: | ||
| 2276 | </p> | ||
| 2277 | <pre class="literallayout"> | ||
| 2278 | ${WORKDIR}/${PN}-${PV} | ||
| 2279 | </pre> | ||
| 2280 | <p> | ||
| 2281 | As an example, assume a | ||
| 2282 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a> top-level | ||
| 2283 | folder named <code class="filename">poky</code> | ||
| 2284 | and a default <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a> | ||
| 2285 | at <code class="filename">poky/build</code>. | ||
| 2286 | In this case, the working directory the build system uses to build | ||
| 2287 | the <code class="filename">db</code> package is the following: | ||
| 2288 | </p> | ||
| 2289 | <pre class="literallayout"> | ||
| 2290 | ~/poky/build/tmp/work/qemux86-poky-linux/db-5.1.19-r3/db-5.1.19 | ||
| 2291 | </pre> | ||
| 2292 | <p> | ||
| 2293 | </p> | ||
| 2294 | </dd> | ||
| 2295 | <dt> | ||
| 2296 | <a name="var-SDKIMAGE_FEATURES"></a>SDKIMAGE_FEATURES</dt> | ||
| 2297 | <dd><p>Equivalent to | ||
| 2298 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-IMAGE_FEATURES" title="IMAGE_FEATURES">IMAGE_FEATURES</a></code>. | ||
| 2299 | However, this variable applies to the SDK generated from an image using | ||
| 2300 | <code class="filename">bitbake -c populate_sdk imagename</code>). | ||
| 2301 | </p></dd> | ||
| 2302 | <dt> | ||
| 2303 | <a name="var-SECTION"></a>SECTION</dt> | ||
| 2304 | <dd><p>The section in which packages should be categorized. | ||
| 2305 | Package management utilities can make use of this variable.</p></dd> | ||
| 2306 | <dt> | ||
| 2307 | <a name="var-SELECTED_OPTIMIZATION"></a>SELECTED_OPTIMIZATION</dt> | ||
| 2308 | <dd><p> | ||
| 2309 | The variable takes the value of | ||
| 2310 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-FULL_OPTIMIZATION" title="FULL_OPTIMIZATION">FULL_OPTIMIZATION</a></code> | ||
| 2311 | unless <code class="filename"><a class="link" href="ref-variables-glos.html#var-DEBUG_BUILD" title="DEBUG_BUILD">DEBUG_BUILD</a></code> = "1". | ||
| 2312 | In this case the value of | ||
| 2313 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-DEBUG_OPTIMIZATION" title="DEBUG_OPTIMIZATION">DEBUG_OPTIMIZATION</a></code> is used. | ||
| 2314 | </p></dd> | ||
| 2315 | <dt> | ||
| 2316 | <a name="var-SERIAL_CONSOLE"></a>SERIAL_CONSOLE</dt> | ||
| 2317 | <dd><p>The speed and device for the serial port used to attach the serial console. | ||
| 2318 | This variable is given to the kernel as the "console" | ||
| 2319 | parameter and after booting occurs <code class="filename">getty</code> is started on that port | ||
| 2320 | so remote login is possible.</p></dd> | ||
| 2321 | <dt> | ||
| 2322 | <a name="var-SITEINFO_ENDIANNESS"></a>SITEINFO_ENDIANNESS</dt> | ||
| 2323 | <dd><p> | ||
| 2324 | Specifies the endian byte order of the target system. | ||
| 2325 | The value should be either "le" for little-endian or "be" for big-endian. | ||
| 2326 | </p></dd> | ||
| 2327 | <dt> | ||
| 2328 | <a name="var-SITEINFO_BITS"></a>SITEINFO_BITS</dt> | ||
| 2329 | <dd><p> | ||
| 2330 | Specifies the number of bits for the target system CPU. | ||
| 2331 | The value should be either "32" or "64". | ||
| 2332 | </p></dd> | ||
| 2333 | <dt> | ||
| 2334 | <a name="var-SPECIAL_PKGSUFFIX"></a>SPECIAL_PKGSUFFIX</dt> | ||
| 2335 | <dd><p> | ||
| 2336 | A list of prefixes for <a class="link" href="ref-variables-glos.html#var-PN" title="PN"><code class="filename">PN</code></a> used by the | ||
| 2337 | OpenEmbedded build system to create variants of recipes or packages. | ||
| 2338 | The list specifies the prefixes to strip off during certain circumstances | ||
| 2339 | such as the generation of the <a class="link" href="ref-variables-glos.html#var-BPN" title="BPN"><code class="filename">BPN</code></a> variable. | ||
| 2340 | </p></dd> | ||
| 2341 | <dt> | ||
| 2342 | <a name="var-SRC_URI"></a>SRC_URI</dt> | ||
| 2343 | <dd> | ||
| 2344 | <p>The list of source files - local or remote. | ||
| 2345 | This variable tells the OpenEmbedded build system which bits to pull | ||
| 2346 | in for the build and how to pull them in. | ||
| 2347 | For example, if the recipe only needs to fetch a tarball from the | ||
| 2348 | internet, the recipe uses a single <code class="filename">SRC_URI</code> entry. | ||
| 2349 | On the other hand, if the recipe needs to fetch a tarball, apply | ||
| 2350 | two patches, and include a custom file, the recipe would include four | ||
| 2351 | instances of the variable.</p> | ||
| 2352 | <p>The following list explains the available URI protocols: | ||
| 2353 | </p> | ||
| 2354 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 2355 | <li class="listitem"> | ||
| 2356 | <p><span class="emphasis"><em><code class="filename">file://</code> -</em></span> Fetches files, which is usually | ||
| 2357 | a file shipped with the metadata, from the local machine. | ||
| 2358 | The path is relative to the | ||
| 2359 | <a class="link" href="ref-variables-glos.html#var-FILESPATH" title="FILESPATH"><code class="filename">FILESPATH</code></a> | ||
| 2360 | variable. | ||
| 2361 | Thus, the build system searches, in order, from the following directories, | ||
| 2362 | which are assumed to be a subdirectories of the directory in which the | ||
| 2363 | recipe file resides: | ||
| 2364 | </p> | ||
| 2365 | <div class="itemizedlist"><ul class="itemizedlist" type="circle"> | ||
| 2366 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">${PN}</code> -</em></span> The recipe name | ||
| 2367 | with any special suffix or prefix, if applicable. | ||
| 2368 | For example, using <code class="filename">bash</code> to build for the native | ||
| 2369 | machine, <code class="filename">PN</code> is <code class="filename">bash-native</code>. | ||
| 2370 | Using <code class="filename">bash</code> to build for the target and for Multilib, | ||
| 2371 | <code class="filename">PN</code> would be <code class="filename">bash</code> and | ||
| 2372 | <code class="filename">lib64-bash</code>, respectively. | ||
| 2373 | </p></li> | ||
| 2374 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">${PF}</code> - </em></span> | ||
| 2375 | <code class="filename">${PN}-${EXTENDPE}${PV}-${PR}</code>. | ||
| 2376 | The recipe name including all version and revision numbers | ||
| 2377 | (i.e. <code class="filename">eglibc-2.13-r20+svnr15508/</code> and | ||
| 2378 | <code class="filename">bash-4.2-r1/</code>).</p></li> | ||
| 2379 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">${P}</code> -</em></span> | ||
| 2380 | <code class="filename">${PN}-${PV}</code>. | ||
| 2381 | The recipe name and version (i.e. <code class="filename">bash-4.2</code>). | ||
| 2382 | </p></li> | ||
| 2383 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">${BPN}</code> -</em></span> The | ||
| 2384 | base recipe name without any special suffix or version numbers. | ||
| 2385 | </p></li> | ||
| 2386 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">${BP}</code> -</em></span> | ||
| 2387 | <code class="filename">${BPN}-${PV}</code>. | ||
| 2388 | The base recipe name and version but without any special | ||
| 2389 | package name suffix.</p></li> | ||
| 2390 | <li class="listitem"><p><span class="emphasis"><em>Files -</em></span> Files beneath the directory in which the recipe | ||
| 2391 | resides.</p></li> | ||
| 2392 | <li class="listitem"><p><span class="emphasis"><em>Directory -</em></span> The directory itself in which the recipe | ||
| 2393 | resides.</p></li> | ||
| 2394 | </ul></div> | ||
| 2395 | </li> | ||
| 2396 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">bzr://</code> -</em></span> Fetches files from a | ||
| 2397 | Bazaar revision control repository.</p></li> | ||
| 2398 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">git://</code> -</em></span> Fetches files from a | ||
| 2399 | Git revision control repository.</p></li> | ||
| 2400 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">osc://</code> -</em></span> Fetches files from | ||
| 2401 | an OSC (OpenSuse Build service) revision control repository.</p></li> | ||
| 2402 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">repo://</code> -</em></span> Fetches files from | ||
| 2403 | a repo (Git) repository.</p></li> | ||
| 2404 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">svk://</code> -</em></span> Fetches files from | ||
| 2405 | an SVK revision control repository.</p></li> | ||
| 2406 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">http://</code> -</em></span> Fetches files from | ||
| 2407 | the Internet using <code class="filename">http</code>.</p></li> | ||
| 2408 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">https://</code> -</em></span> Fetches files | ||
| 2409 | from the Internet using <code class="filename">https</code>.</p></li> | ||
| 2410 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">ftp://</code> -</em></span> Fetches files | ||
| 2411 | from the Internet using <code class="filename">ftp</code>.</p></li> | ||
| 2412 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">cvs://</code> -</em></span> Fetches files from | ||
| 2413 | a CVS revision control repository.</p></li> | ||
| 2414 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">hg://</code> -</em></span> Fetches files from | ||
| 2415 | a Mercurial (<code class="filename">hg</code>) revision control repository.</p></li> | ||
| 2416 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">p4://</code> -</em></span> Fetches files from | ||
| 2417 | a Perforce (<code class="filename">p4</code>) revision control repository.</p></li> | ||
| 2418 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">ssh://</code> -</em></span> Fetches files from | ||
| 2419 | a secure shell.</p></li> | ||
| 2420 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">svn://</code> -</em></span> Fetches files from | ||
| 2421 | a Subversion (<code class="filename">svn</code>) revision control repository.</p></li> | ||
| 2422 | </ul></div> | ||
| 2423 | <p> | ||
| 2424 | </p> | ||
| 2425 | <p>Standard and recipe-specific options for <code class="filename">SRC_URI</code> exist. | ||
| 2426 | Here are standard options: | ||
| 2427 | </p> | ||
| 2428 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 2429 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">apply</code> -</em></span> Whether to apply | ||
| 2430 | the patch or not. | ||
| 2431 | The default action is to apply the patch.</p></li> | ||
| 2432 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">striplevel</code> -</em></span> Which | ||
| 2433 | striplevel to use when applying the patch. | ||
| 2434 | The default level is 1.</p></li> | ||
| 2435 | </ul></div> | ||
| 2436 | <p> | ||
| 2437 | </p> | ||
| 2438 | <p>Here are options specific to recipes building code from a revision control system: | ||
| 2439 | </p> | ||
| 2440 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 2441 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">mindate</code> -</em></span> Only applies | ||
| 2442 | the patch if <a class="link" href="ref-variables-glos.html#var-SRCDATE" title="SRCDATE"><code class="filename">SRCDATE</code></a> | ||
| 2443 | is equal to or greater than <code class="filename">mindate</code>.</p></li> | ||
| 2444 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">maxdate</code> -</em></span> Only applies | ||
| 2445 | the patch if <a class="link" href="ref-variables-glos.html#var-SRCDATE" title="SRCDATE"><code class="filename">SRCDATE</code></a> | ||
| 2446 | is not later than <code class="filename">mindate</code>.</p></li> | ||
| 2447 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">minrev</code> -</em></span> Only applies | ||
| 2448 | the patch if <a class="link" href="ref-variables-glos.html#var-SRCREV" title="SRCREV"><code class="filename">SRCREV</code></a> | ||
| 2449 | is equal to or greater than <code class="filename">minrev</code>.</p></li> | ||
| 2450 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">maxrev</code> -</em></span> Only applies | ||
| 2451 | the patch if <a class="link" href="ref-variables-glos.html#var-SRCREV" title="SRCREV"><code class="filename">SRCREV</code></a> | ||
| 2452 | is not later than <code class="filename">maxrev</code>.</p></li> | ||
| 2453 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">rev</code> -</em></span> Only applies the | ||
| 2454 | patch if <a class="link" href="ref-variables-glos.html#var-SRCREV" title="SRCREV"><code class="filename">SRCREV</code></a> | ||
| 2455 | is equal to <code class="filename">rev</code>.</p></li> | ||
| 2456 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">notrev</code> -</em></span> Only applies | ||
| 2457 | the patch if <a class="link" href="ref-variables-glos.html#var-SRCREV" title="SRCREV"><code class="filename">SRCREV</code></a> | ||
| 2458 | is not equal to <code class="filename">rev</code>.</p></li> | ||
| 2459 | </ul></div> | ||
| 2460 | <p> | ||
| 2461 | </p> | ||
| 2462 | <p>Here are some additional options worth mentioning: | ||
| 2463 | </p> | ||
| 2464 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 2465 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">unpack</code> -</em></span> Controls | ||
| 2466 | whether or not to unpack the file if it is an archive. | ||
| 2467 | The default action is to upack the file.</p></li> | ||
| 2468 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">subdir</code> -</em></span> Places the file | ||
| 2469 | (or extracts its contents) into the specified | ||
| 2470 | subdirectory of <a class="link" href="ref-variables-glos.html#var-WORKDIR" title="WORKDIR"><code class="filename">WORKDIR</code></a>. | ||
| 2471 | This option is useful for unusual tarballs or other archives that | ||
| 2472 | don't have their files already in a subdirectory within the archive. | ||
| 2473 | </p></li> | ||
| 2474 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">name</code> -</em></span> Specifies a | ||
| 2475 | name to be used for association with <code class="filename">SRC_URI</code> checksums | ||
| 2476 | when you have more than one file specified in <code class="filename">SRC_URI</code>. | ||
| 2477 | </p></li> | ||
| 2478 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">downloadfilename</code> -</em></span> Specifies | ||
| 2479 | the filename used when storing the downloaded file.</p></li> | ||
| 2480 | </ul></div> | ||
| 2481 | <p> | ||
| 2482 | </p> | ||
| 2483 | </dd> | ||
| 2484 | <dt> | ||
| 2485 | <a name="var-SRC_URI_OVERRIDES_PACKAGE_ARCH"></a>SRC_URI_OVERRIDES_PACKAGE_ARCH</dt> | ||
| 2486 | <dd> | ||
| 2487 | <p></p> | ||
| 2488 | <p> | ||
| 2489 | By default, the OpenEmbedded build system automatically detects whether | ||
| 2490 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-SRC_URI" title="SRC_URI">SRC_URI</a></code> | ||
| 2491 | contains files that are machine-specific. | ||
| 2492 | If so, the build system automatically changes | ||
| 2493 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-PACKAGE_ARCH" title="PACKAGE_ARCH">PACKAGE_ARCH</a></code>. | ||
| 2494 | Setting this variable to "0" disables this behavior. | ||
| 2495 | </p> | ||
| 2496 | </dd> | ||
| 2497 | <dt> | ||
| 2498 | <a name="var-SRCDATE"></a>SRCDATE</dt> | ||
| 2499 | <dd><p> | ||
| 2500 | The date of the source code used to build the package. | ||
| 2501 | This variable applies only if the source was fetched from a Source Code Manager (SCM). | ||
| 2502 | </p></dd> | ||
| 2503 | <dt> | ||
| 2504 | <a name="var-SRCREV"></a>SRCREV</dt> | ||
| 2505 | <dd><p> | ||
| 2506 | The revision of the source code used to build the package. | ||
| 2507 | This variable applies to Subversion, Git, Mercurial and Bazaar | ||
| 2508 | only. | ||
| 2509 | Note that if you wish to build a fixed revision and you wish | ||
| 2510 | to avoid performing a query on the remote repository every time | ||
| 2511 | BitBake parses your recipe, you should specify a <code class="filename">SRCREV</code> that is a | ||
| 2512 | full revision identifier and not just a tag. | ||
| 2513 | </p></dd> | ||
| 2514 | <dt> | ||
| 2515 | <a name="var-SSTATE_DIR"></a>SSTATE_DIR</dt> | ||
| 2516 | <dd><p>The directory for the shared state.</p></dd> | ||
| 2517 | <dt> | ||
| 2518 | <a name="var-SSTATE_MIRRORS"></a>SSTATE_MIRRORS</dt> | ||
| 2519 | <dd> | ||
| 2520 | <p> | ||
| 2521 | Configures the OpenEmbedded build system to search other | ||
| 2522 | mirror locations for prebuilt cache data objects before | ||
| 2523 | building out the data. | ||
| 2524 | This variable works like fetcher | ||
| 2525 | <code class="filename">MIRRORS</code>/<code class="filename">PREMIRRORS</code> | ||
| 2526 | and points to the cache locations to check for the shared | ||
| 2527 | objects. | ||
| 2528 | </p> | ||
| 2529 | <p> | ||
| 2530 | You can specify a filesystem directory or a remote URL such | ||
| 2531 | as HTTP or FTP. | ||
| 2532 | The locations you specify need to contain the shared state | ||
| 2533 | cache (sstate-cache) results from previous builds. | ||
| 2534 | The sstate-cache you point to can also be from builds on | ||
| 2535 | other machines. | ||
| 2536 | </p> | ||
| 2537 | <p> | ||
| 2538 | If a mirror uses the same structure as | ||
| 2539 | <a class="link" href="ref-variables-glos.html#var-SSTATE_DIR" title="SSTATE_DIR"><code class="filename">SSTATE_DIR</code></a>, | ||
| 2540 | you need to add | ||
| 2541 | "PATH" at the end as shown in the examples below. | ||
| 2542 | The build system substitues the correct path within the | ||
| 2543 | directory structure. | ||
| 2544 | </p> | ||
| 2545 | <pre class="literallayout"> | ||
| 2546 | SSTATE_MIRRORS ?= "\ | ||
| 2547 | file://.* http://someserver.tld/share/sstate/PATH \n \ | ||
| 2548 | file://.* file:///some/local/dir/sstate/PATH" | ||
| 2549 | </pre> | ||
| 2550 | <p> | ||
| 2551 | </p> | ||
| 2552 | </dd> | ||
| 2553 | <dt> | ||
| 2554 | <a name="var-STAGING_KERNEL_DIR"></a>STAGING_KERNEL_DIR</dt> | ||
| 2555 | <dd><p> | ||
| 2556 | The directory with kernel headers that are required to build out-of-tree | ||
| 2557 | modules. | ||
| 2558 | </p></dd> | ||
| 2559 | <dt> | ||
| 2560 | <a name="var-STAMP"></a>STAMP</dt> | ||
| 2561 | <dd> | ||
| 2562 | <p> | ||
| 2563 | Specifies the base path used to create recipe stamp files. | ||
| 2564 | The path to an actual stamp file is constructed by evaluating this | ||
| 2565 | string and then appending additional information. | ||
| 2566 | Currently, the default assignment for <code class="filename">STAMP</code> | ||
| 2567 | as set in the <code class="filename">meta/conf/bitbake.conf</code> file | ||
| 2568 | is: | ||
| 2569 | </p> | ||
| 2570 | <pre class="literallayout"> | ||
| 2571 | STAMP = "${TMPDIR}/stamps/${MULTIMACH_TARGET_SYS}/${PN}-${EXTENDPE}${PV}-${PR}" | ||
| 2572 | </pre> | ||
| 2573 | <p> | ||
| 2574 | See <a class="link" href="ref-variables-glos.html#var-TMPDIR" title="TMPDIR"><code class="filename">TMPDIR</code></a>, | ||
| 2575 | <a class="link" href="ref-variables-glos.html#var-MULTIMACH_TARGET_SYS" title="MULTIMACH_TARGET_SYS"><code class="filename">MULTIMACH_TARGET_SYS</code></a>, | ||
| 2576 | <a class="link" href="ref-variables-glos.html#var-PN" title="PN"><code class="filename">PN</code></a>, | ||
| 2577 | <a class="link" href="ref-variables-glos.html#var-EXTENDPE" title="EXTENDPE"><code class="filename">EXTENDPE</code></a>, | ||
| 2578 | <a class="link" href="ref-variables-glos.html#var-PV" title="PV"><code class="filename">PV</code></a>, and | ||
| 2579 | <a class="link" href="ref-variables-glos.html#var-PR" title="PR"><code class="filename">PR</code></a> for related variable | ||
| 2580 | information. | ||
| 2581 | </p> | ||
| 2582 | </dd> | ||
| 2583 | <dt> | ||
| 2584 | <a name="var-SUMMARY"></a>SUMMARY</dt> | ||
| 2585 | <dd><p>The short (72 characters or less) summary of the binary package for packaging | ||
| 2586 | systems such as <code class="filename">opkg</code>, <code class="filename">rpm</code> or | ||
| 2587 | <code class="filename">dpkg</code>. | ||
| 2588 | By default, <code class="filename">SUMMARY</code> is used to define | ||
| 2589 | the <a class="link" href="ref-variables-glos.html#var-DESCRIPTION" title="DESCRIPTION"><code class="filename">DESCRIPTION</code></a> | ||
| 2590 | variable if <code class="filename">DESCRIPTION</code> is not set | ||
| 2591 | in the recipe. | ||
| 2592 | </p></dd> | ||
| 2593 | </dl> | ||
| 2594 | </div> | ||
| 2595 | <div class="glossdiv" title="T"> | ||
| 2596 | <h3 class="title">T</h3> | ||
| 2597 | <dl> | ||
| 2598 | <dt> | ||
| 2599 | <a name="var-T"></a>T</dt> | ||
| 2600 | <dd> | ||
| 2601 | <p>This variable points to a directory were Bitbake places temporary | ||
| 2602 | files when building a particular package. | ||
| 2603 | It is typically set as follows: | ||
| 2604 | </p> | ||
| 2605 | <pre class="literallayout"> | ||
| 2606 | T = ${WORKDIR}/temp | ||
| 2607 | </pre> | ||
| 2608 | <p> | ||
| 2609 | The <a class="link" href="ref-variables-glos.html#var-WORKDIR" title="WORKDIR"><code class="filename">WORKDIR</code></a> | ||
| 2610 | is the directory into which Bitbake unpacks and builds the package. | ||
| 2611 | The default <code class="filename">bitbake.conf</code> file sets this variable.</p> | ||
| 2612 | <p>The <code class="filename">T</code> variable is not to be confused with | ||
| 2613 | the <a class="link" href="ref-variables-glos.html#var-TMPDIR" title="TMPDIR"><code class="filename">TMPDIR</code></a> variable, | ||
| 2614 | which points to the root of the directory tree where Bitbake | ||
| 2615 | places the output of an entire build. | ||
| 2616 | </p> | ||
| 2617 | </dd> | ||
| 2618 | <dt> | ||
| 2619 | <a name="var-TARGET_ARCH"></a>TARGET_ARCH</dt> | ||
| 2620 | <dd><p>The architecture of the device being built. | ||
| 2621 | While a number of values are possible, the OpenEmbedded build system primarily supports | ||
| 2622 | <code class="filename">arm</code> and <code class="filename">i586</code>.</p></dd> | ||
| 2623 | <dt> | ||
| 2624 | <a name="var-TARGET_CFLAGS"></a>TARGET_CFLAGS</dt> | ||
| 2625 | <dd><p> | ||
| 2626 | Flags passed to the C compiler for the target system. | ||
| 2627 | This variable evaluates to the same as | ||
| 2628 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-CFLAGS" title="CFLAGS">CFLAGS</a></code>. | ||
| 2629 | </p></dd> | ||
| 2630 | <dt> | ||
| 2631 | <a name="var-TARGET_FPU"></a>TARGET_FPU</dt> | ||
| 2632 | <dd><p>Specifies the method for handling FPU code. | ||
| 2633 | For FPU-less targets, which include most ARM CPUs, the variable must be | ||
| 2634 | set to "soft". | ||
| 2635 | If not, the kernel emulation gets used, which results in a performance penalty.</p></dd> | ||
| 2636 | <dt> | ||
| 2637 | <a name="var-TARGET_OS"></a>TARGET_OS</dt> | ||
| 2638 | <dd><p>Specifies the target's operating system. | ||
| 2639 | The variable can be set to "linux" for <code class="filename">eglibc</code>-based systems and | ||
| 2640 | to "linux-uclibc" for <code class="filename">uclibc</code>. | ||
| 2641 | For ARM/EABI targets, there are also "linux-gnueabi" and | ||
| 2642 | "linux-uclibc-gnueabi" values possible.</p></dd> | ||
| 2643 | <dt> | ||
| 2644 | <a name="var-TCLIBC"></a>TCLIBC</dt> | ||
| 2645 | <dd> | ||
| 2646 | <p> | ||
| 2647 | Specifies which variant of the GNU standard C library (<code class="filename">libc</code>) | ||
| 2648 | to use during the build process. | ||
| 2649 | This variable replaces <code class="filename">POKYLIBC</code>, which is no longer | ||
| 2650 | supported. | ||
| 2651 | </p> | ||
| 2652 | <p> | ||
| 2653 | You can select <code class="filename">eglibc</code> or <code class="filename">uclibc</code>. | ||
| 2654 | </p> | ||
| 2655 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 2656 | <h3 class="title">Note</h3> | ||
| 2657 | This release of the Yocto Project does not support the | ||
| 2658 | <code class="filename">glibc</code> implementation of <code class="filename">libc</code>. | ||
| 2659 | </div> | ||
| 2660 | <p> | ||
| 2661 | </p> | ||
| 2662 | </dd> | ||
| 2663 | <dt> | ||
| 2664 | <a name="var-TCMODE"></a>TCMODE</dt> | ||
| 2665 | <dd> | ||
| 2666 | <p> | ||
| 2667 | The toolchain selector. | ||
| 2668 | This variable replaces <code class="filename">POKYMODE</code>, which is no longer | ||
| 2669 | supported. | ||
| 2670 | </p> | ||
| 2671 | <p> | ||
| 2672 | The <code class="filename">TCMODE</code> variable selects the external toolchain | ||
| 2673 | built using the OpenEmbedded build system or a few supported combinations of | ||
| 2674 | the upstream GCC or CodeSourcery Labs toolchain. | ||
| 2675 | The variable identifies the <code class="filename">tcmode-*</code> files used in | ||
| 2676 | the <code class="filename">meta/conf/distro/include</code> directory, which is found in the | ||
| 2677 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 2678 | </p> | ||
| 2679 | <p> | ||
| 2680 | By default, <code class="filename">TCMODE</code> is set to "default", which | ||
| 2681 | chooses the <code class="filename">tcmode-default.inc</code> file. | ||
| 2682 | The variable is similar to | ||
| 2683 | <a class="link" href="ref-variables-glos.html#var-TCLIBC" title="TCLIBC"><code class="filename">TCLIBC</code></a>, which controls | ||
| 2684 | the variant of the GNU standard C library (<code class="filename">libc</code>) | ||
| 2685 | used during the build process: <code class="filename">eglibc</code> or <code class="filename">uclibc</code>. | ||
| 2686 | </p> | ||
| 2687 | </dd> | ||
| 2688 | <dt> | ||
| 2689 | <a name="var-TMPDIR"></a>TMPDIR</dt> | ||
| 2690 | <dd> | ||
| 2691 | <p> | ||
| 2692 | This variable is the temporary directory the OpenEmbedded build system | ||
| 2693 | uses when it does its work building images. | ||
| 2694 | By default, the <code class="filename">TMPDIR</code> variable is named | ||
| 2695 | <code class="filename">tmp</code> within the | ||
| 2696 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>. | ||
| 2697 | </p> | ||
| 2698 | <p> | ||
| 2699 | If you want to establish this directory in a location other than the | ||
| 2700 | default, you can uncomment the following statement in the | ||
| 2701 | <code class="filename">conf/local.conf</code> file in the | ||
| 2702 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>: | ||
| 2703 | </p> | ||
| 2704 | <pre class="literallayout"> | ||
| 2705 | #TMPDIR = "${TOPDIR}/tmp" | ||
| 2706 | </pre> | ||
| 2707 | <p> | ||
| 2708 | </p> | ||
| 2709 | </dd> | ||
| 2710 | <dt> | ||
| 2711 | <a name="var-TOPDIR"></a>TOPDIR</dt> | ||
| 2712 | <dd><p> | ||
| 2713 | This variable is the | ||
| 2714 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>. | ||
| 2715 | BitBake automatically sets this variable. | ||
| 2716 | The OpenEmbedded build system uses the Build Directory when building images. | ||
| 2717 | </p></dd> | ||
| 2718 | </dl> | ||
| 2719 | </div> | ||
| 2720 | <div class="glossdiv" title="W"> | ||
| 2721 | <h3 class="title">W</h3> | ||
| 2722 | <dl> | ||
| 2723 | <dt> | ||
| 2724 | <a name="var-WORKDIR"></a>WORKDIR</dt> | ||
| 2725 | <dd> | ||
| 2726 | <p> | ||
| 2727 | The pathname of the working directory in which the OpenEmbedded build system | ||
| 2728 | builds a recipe. | ||
| 2729 | This directory is located within the | ||
| 2730 | <a class="link" href="ref-variables-glos.html#var-TMPDIR" title="TMPDIR"><code class="filename">TMPDIR</code></a> directory structure and changes | ||
| 2731 | as different packages are built. | ||
| 2732 | </p> | ||
| 2733 | <p> | ||
| 2734 | The actual <code class="filename">WORKDIR</code> directory depends on several things: | ||
| 2735 | </p> | ||
| 2736 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 2737 | <li class="listitem">The temporary directory - <a class="link" href="ref-variables-glos.html#var-TMPDIR" title="TMPDIR"><code class="filename">TMPDIR</code></a> | ||
| 2738 | </li> | ||
| 2739 | <li class="listitem">The package architecture - <a class="link" href="ref-variables-glos.html#var-PACKAGE_ARCH" title="PACKAGE_ARCH"><code class="filename">PACKAGE_ARCH</code></a> | ||
| 2740 | </li> | ||
| 2741 | <li class="listitem">The target machine - <a class="link" href="ref-variables-glos.html#var-MACHINE" title="MACHINE"><code class="filename">MACHINE</code></a> | ||
| 2742 | </li> | ||
| 2743 | <li class="listitem">The target operating system - <a class="link" href="ref-variables-glos.html#var-TARGET_OS" title="TARGET_OS"><code class="filename">TARGET_OS</code></a> | ||
| 2744 | </li> | ||
| 2745 | <li class="listitem">The recipe name - <a class="link" href="ref-variables-glos.html#var-PN" title="PN"><code class="filename">PN</code></a> | ||
| 2746 | </li> | ||
| 2747 | <li class="listitem">The recipe version - <a class="link" href="ref-variables-glos.html#var-PV" title="PV"><code class="filename">PV</code></a> | ||
| 2748 | </li> | ||
| 2749 | <li class="listitem">The recipe revision - <a class="link" href="ref-variables-glos.html#var-PR" title="PR"><code class="filename">PR</code></a> | ||
| 2750 | </li> | ||
| 2751 | </ul></div> | ||
| 2752 | <p> | ||
| 2753 | </p> | ||
| 2754 | <p> | ||
| 2755 | For packages that are not dependent on a particular machine, | ||
| 2756 | <code class="filename">WORKDIR</code> is defined as follows: | ||
| 2757 | </p> | ||
| 2758 | <pre class="literallayout"> | ||
| 2759 | ${TMPDIR}/work/${PACKAGE_ARCH}-poky-${TARGET_OS}/${PN}-${PV}-${PR} | ||
| 2760 | </pre> | ||
| 2761 | <p> | ||
| 2762 | As an example, assume a | ||
| 2763 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a> top-level | ||
| 2764 | folder name <code class="filename">poky</code> and a default | ||
| 2765 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a> | ||
| 2766 | at <code class="filename">poky/build</code>. | ||
| 2767 | In this case, the working directory the build system uses to build | ||
| 2768 | the <code class="filename">v86d</code> package is the following: | ||
| 2769 | </p> | ||
| 2770 | <pre class="literallayout"> | ||
| 2771 | ~/poky/build/tmp/work/qemux86-poky-linux/v86d-01.9-r0 | ||
| 2772 | </pre> | ||
| 2773 | <p> | ||
| 2774 | </p> | ||
| 2775 | <p> | ||
| 2776 | For packages that are dependent on a particular machine, <code class="filename">WORKDIR</code> | ||
| 2777 | is defined slightly different: | ||
| 2778 | </p> | ||
| 2779 | <pre class="literallayout"> | ||
| 2780 | ${TMPDIR}/work/${MACHINE}-poky-${TARGET_OS}/${PN}-${PV}-${PR} | ||
| 2781 | </pre> | ||
| 2782 | <p> | ||
| 2783 | As an example, again assume a Source Directory top-level folder | ||
| 2784 | named <code class="filename">poky</code> and a default Build Directory | ||
| 2785 | at <code class="filename">poky/build</code>. | ||
| 2786 | In this case, the working directory the build system uses to build | ||
| 2787 | the <code class="filename">acl</code> recipe, which is being built for a | ||
| 2788 | MIPS-based device, is the following: | ||
| 2789 | </p> | ||
| 2790 | <pre class="literallayout"> | ||
| 2791 | ~/poky/build/tmp/work/mips-poky-linux/acl-2.2.51-r2 | ||
| 2792 | </pre> | ||
| 2793 | <p> | ||
| 2794 | </p> | ||
| 2795 | </dd> | ||
| 2796 | </dl> | ||
| 2797 | </div> | ||
| 2798 | </div> | ||
| 2799 | </div></body> | ||
| 2800 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-config-distro.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-config-distro.html new file mode 100644 index 0000000000..ba26400d5a --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-config-distro.html | |||
| @@ -0,0 +1,40 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>11.1.1. Distribution (Distro)</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-varlocality-configuration.html" title="11.1. Configuration"> | ||
| 9 | <link rel="prev" href="ref-varlocality-configuration.html" title="11.1. Configuration"> | ||
| 10 | <link rel="next" href="ref-varlocality-config-machine.html" title="11.1.2. Machine"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="11.1.1. Distribution (Distro)"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="ref-varlocality-config-distro"></a>11.1.1. Distribution (Distro)</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | This section lists variables whose context is the distribution, or distro. | ||
| 17 | </p> | ||
| 18 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 19 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-DISTRO" title="DISTRO">DISTRO</a></code></p></li> | ||
| 20 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-DISTRO_NAME" title="DISTRO_NAME">DISTRO_NAME</a></code> | ||
| 21 | </p></li> | ||
| 22 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-DISTRO_VERSION" title="DISTRO_VERSION">DISTRO_VERSION</a> | ||
| 23 | </code></p></li> | ||
| 24 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-MAINTAINER" title="MAINTAINER">MAINTAINER</a></code> | ||
| 25 | </p></li> | ||
| 26 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-PACKAGE_CLASSES" title="PACKAGE_CLASSES">PACKAGE_CLASSES</a> | ||
| 27 | </code></p></li> | ||
| 28 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-TARGET_OS" title="TARGET_OS">TARGET_OS</a></code> | ||
| 29 | </p></li> | ||
| 30 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-TARGET_FPU" title="TARGET_FPU">TARGET_FPU</a></code> | ||
| 31 | </p></li> | ||
| 32 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-TCMODE" title="TCMODE">TCMODE</a></code> | ||
| 33 | </p></li> | ||
| 34 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-TCLIBC" title="TCLIBC">TCLIBC</a></code> | ||
| 35 | </p></li> | ||
| 36 | </ul></div> | ||
| 37 | <p> | ||
| 38 | </p> | ||
| 39 | </div></body> | ||
| 40 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-config-local.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-config-local.html new file mode 100644 index 0000000000..2067374c26 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-config-local.html | |||
| @@ -0,0 +1,42 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>11.1.3. Local</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-varlocality-configuration.html" title="11.1. Configuration"> | ||
| 9 | <link rel="prev" href="ref-varlocality-config-machine.html" title="11.1.2. Machine"> | ||
| 10 | <link rel="next" href="ref-varlocality-recipes.html" title="11.2. Recipes"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="11.1.3. Local"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="ref-varlocality-config-local"></a>11.1.3. Local</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | This section lists variables whose context is the local configuration through the | ||
| 17 | <code class="filename">local.conf</code> file. | ||
| 18 | </p> | ||
| 19 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 20 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-DISTRO" title="DISTRO">DISTRO</a></code> | ||
| 21 | </p></li> | ||
| 22 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE" title="MACHINE">MACHINE</a></code> | ||
| 23 | </p></li> | ||
| 24 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-DL_DIR" title="DL_DIR">DL_DIR</a></code> | ||
| 25 | </p></li> | ||
| 26 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-BBFILES" title="BBFILES">BBFILES</a></code> | ||
| 27 | </p></li> | ||
| 28 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-EXTRA_IMAGE_FEATURES" title="EXTRA_IMAGE_FEATURES">EXTRA_IMAGE_FEATURES | ||
| 29 | </a></code></p></li> | ||
| 30 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-PACKAGE_CLASSES" title="PACKAGE_CLASSES">PACKAGE_CLASSES</a> | ||
| 31 | </code></p></li> | ||
| 32 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-BB_NUMBER_THREADS" title="BB_NUMBER_THREADS">BB_NUMBER_THREADS</a> | ||
| 33 | </code></p></li> | ||
| 34 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-BBINCLUDELOGS" title="BBINCLUDELOGS">BBINCLUDELOGS</a> | ||
| 35 | </code></p></li> | ||
| 36 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-ENABLE_BINARY_LOCALE_GENERATION" title="ENABLE_BINARY_LOCALE_GENERATION"> | ||
| 37 | ENABLE_BINARY_LOCALE_GENERATION</a></code></p></li> | ||
| 38 | </ul></div> | ||
| 39 | <p> | ||
| 40 | </p> | ||
| 41 | </div></body> | ||
| 42 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-config-machine.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-config-machine.html new file mode 100644 index 0000000000..82ee2a4e6d --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-config-machine.html | |||
| @@ -0,0 +1,41 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>11.1.2. Machine</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-varlocality-configuration.html" title="11.1. Configuration"> | ||
| 9 | <link rel="prev" href="ref-varlocality-config-distro.html" title="11.1.1. Distribution (Distro)"> | ||
| 10 | <link rel="next" href="ref-varlocality-config-local.html" title="11.1.3. Local"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="11.1.2. Machine"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="ref-varlocality-config-machine"></a>11.1.2. Machine</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | This section lists variables whose context is the machine. | ||
| 17 | </p> | ||
| 18 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 19 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-TARGET_ARCH" title="TARGET_ARCH">TARGET_ARCH</a></code> | ||
| 20 | </p></li> | ||
| 21 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-SERIAL_CONSOLE" title="SERIAL_CONSOLE">SERIAL_CONSOLE</a> | ||
| 22 | </code></p></li> | ||
| 23 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-PACKAGE_EXTRA_ARCHS" title="PACKAGE_EXTRA_ARCHS">PACKAGE_EXTRA_ARCHS</a> | ||
| 24 | </code></p></li> | ||
| 25 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-IMAGE_FSTYPES" title="IMAGE_FSTYPES">IMAGE_FSTYPES</a> | ||
| 26 | </code></p></li> | ||
| 27 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_FEATURES" title="MACHINE_FEATURES">MACHINE_FEATURES</a> | ||
| 28 | </code></p></li> | ||
| 29 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_EXTRA_RDEPENDS" title="MACHINE_EXTRA_RDEPENDS">MACHINE_EXTRA_RDEPENDS | ||
| 30 | </a></code></p></li> | ||
| 31 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_EXTRA_RRECOMMENDS" title="MACHINE_EXTRA_RRECOMMENDS">MACHINE_EXTRA_RRECOMMENDS | ||
| 32 | </a></code></p></li> | ||
| 33 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS" title="MACHINE_ESSENTIAL_EXTRA_RDEPENDS">MACHINE_ESSENTIAL_EXTRA_RDEPENDS | ||
| 34 | </a></code></p></li> | ||
| 35 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS" title="MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS"> | ||
| 36 | MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</a></code></p></li> | ||
| 37 | </ul></div> | ||
| 38 | <p> | ||
| 39 | </p> | ||
| 40 | </div></body> | ||
| 41 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-configuration.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-configuration.html new file mode 100644 index 0000000000..c6a1c87198 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-configuration.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>11.1. Configuration</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-varlocality.html" title="Chapter 11. Variable Context"> | ||
| 9 | <link rel="prev" href="ref-varlocality.html" title="Chapter 11. Variable Context"> | ||
| 10 | <link rel="next" href="ref-varlocality-config-distro.html" title="11.1.1. Distribution (Distro)"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="11.1. Configuration"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-varlocality-configuration"></a>11.1. Configuration</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | The following subsections provide lists of variables whose context is | ||
| 17 | configuration: distribution, machine, and local. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipe-build.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipe-build.html new file mode 100644 index 0000000000..3068ceb8d2 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipe-build.html | |||
| @@ -0,0 +1,33 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>11.2.4. Extra Build Information</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-varlocality-recipes.html" title="11.2. Recipes"> | ||
| 9 | <link rel="prev" href="ref-varlocality-recipe-paths.html" title="11.2.3. Paths"> | ||
| 10 | <link rel="next" href="faq.html" title="Chapter 12. FAQ"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="11.2.4. Extra Build Information"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="ref-varlocality-recipe-build"></a>11.2.4. Extra Build Information</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | This section lists variables that define extra build information for recipes. | ||
| 17 | </p> | ||
| 18 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 19 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-EXTRA_OECMAKE" title="EXTRA_OECMAKE">EXTRA_OECMAKE</a> | ||
| 20 | </code></p></li> | ||
| 21 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-EXTRA_OECONF" title="EXTRA_OECONF">EXTRA_OECONF</a> | ||
| 22 | </code></p></li> | ||
| 23 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-EXTRA_OEMAKE" title="EXTRA_OEMAKE">EXTRA_OEMAKE</a> | ||
| 24 | </code></p></li> | ||
| 25 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-PACKAGES" title="PACKAGES">PACKAGES</a></code> | ||
| 26 | </p></li> | ||
| 27 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-DEFAULT_PREFERENCE" title="DEFAULT_PREFERENCE">DEFAULT_PREFERENCE | ||
| 28 | </a></code></p></li> | ||
| 29 | </ul></div> | ||
| 30 | <p> | ||
| 31 | </p> | ||
| 32 | </div></body> | ||
| 33 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipe-dependencies.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipe-dependencies.html new file mode 100644 index 0000000000..4a172a7751 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipe-dependencies.html | |||
| @@ -0,0 +1,33 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>11.2.2. Dependencies</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-varlocality-recipes.html" title="11.2. Recipes"> | ||
| 9 | <link rel="prev" href="ref-varlocality-recipe-required.html" title="11.2.1. Required"> | ||
| 10 | <link rel="next" href="ref-varlocality-recipe-paths.html" title="11.2.3. Paths"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="11.2.2. Dependencies"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="ref-varlocality-recipe-dependencies"></a>11.2.2. Dependencies</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | This section lists variables that define recipe dependencies. | ||
| 17 | </p> | ||
| 18 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 19 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-DEPENDS" title="DEPENDS">DEPENDS</a> | ||
| 20 | </code></p></li> | ||
| 21 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-RDEPENDS" title="RDEPENDS">RDEPENDS</a> | ||
| 22 | </code></p></li> | ||
| 23 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-RRECOMMENDS" title="RRECOMMENDS">RRECOMMENDS</a> | ||
| 24 | </code></p></li> | ||
| 25 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-RCONFLICTS" title="RCONFLICTS">RCONFLICTS</a> | ||
| 26 | </code></p></li> | ||
| 27 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-RREPLACES" title="RREPLACES">RREPLACES</a> | ||
| 28 | </code></p></li> | ||
| 29 | </ul></div> | ||
| 30 | <p> | ||
| 31 | </p> | ||
| 32 | </div></body> | ||
| 33 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipe-paths.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipe-paths.html new file mode 100644 index 0000000000..92003d344f --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipe-paths.html | |||
| @@ -0,0 +1,29 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>11.2.3. Paths</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-varlocality-recipes.html" title="11.2. Recipes"> | ||
| 9 | <link rel="prev" href="ref-varlocality-recipe-dependencies.html" title="11.2.2. Dependencies"> | ||
| 10 | <link rel="next" href="ref-varlocality-recipe-build.html" title="11.2.4. Extra Build Information"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="11.2.3. Paths"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="ref-varlocality-recipe-paths"></a>11.2.3. Paths</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | This section lists variables that define recipe paths. | ||
| 17 | </p> | ||
| 18 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 19 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-WORKDIR" title="WORKDIR">WORKDIR</a> | ||
| 20 | </code></p></li> | ||
| 21 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-S" title="S">S</a> | ||
| 22 | </code></p></li> | ||
| 23 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-FILES" title="FILES">FILES</a> | ||
| 24 | </code></p></li> | ||
| 25 | </ul></div> | ||
| 26 | <p> | ||
| 27 | </p> | ||
| 28 | </div></body> | ||
| 29 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipe-required.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipe-required.html new file mode 100644 index 0000000000..bb0355cced --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipe-required.html | |||
| @@ -0,0 +1,30 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>11.2.1. Required</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-varlocality-recipes.html" title="11.2. Recipes"> | ||
| 9 | <link rel="prev" href="ref-varlocality-recipes.html" title="11.2. Recipes"> | ||
| 10 | <link rel="next" href="ref-varlocality-recipe-dependencies.html" title="11.2.2. Dependencies"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="11.2.1. Required"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="ref-varlocality-recipe-required"></a>11.2.1. Required</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | This section lists variables that are required for recipes. | ||
| 17 | </p> | ||
| 18 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 19 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-LICENSE" title="LICENSE">LICENSE</a> | ||
| 20 | </code></p></li> | ||
| 21 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-LIC_FILES_CHKSUM" title="LIC_FILES_CHKSUM">LIC_FILES_CHKSUM</a> | ||
| 22 | </code></p></li> | ||
| 23 | <li class="listitem"><p><code class="filename"><a class="link" href="ref-variables-glos.html#var-SRC_URI" title="SRC_URI">SRC_URI</a></code> - used | ||
| 24 | in recipes that fetch local or remote files. | ||
| 25 | </p></li> | ||
| 26 | </ul></div> | ||
| 27 | <p> | ||
| 28 | </p> | ||
| 29 | </div></body> | ||
| 30 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipes.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipes.html new file mode 100644 index 0000000000..5959cdc5ed --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality-recipes.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>11.2. Recipes</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-varlocality.html" title="Chapter 11. Variable Context"> | ||
| 9 | <link rel="prev" href="ref-varlocality-config-local.html" title="11.1.3. Local"> | ||
| 10 | <link rel="next" href="ref-varlocality-recipe-required.html" title="11.2.1. Required"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="11.2. Recipes"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="ref-varlocality-recipes"></a>11.2. Recipes</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | The following subsections provide lists of variables whose context is | ||
| 17 | recipes: required, dependencies, path, and extra build information. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality.html new file mode 100644 index 0000000000..3cf716975f --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ref-varlocality.html | |||
| @@ -0,0 +1,41 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 11. Variable Context</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="ref-variables-glos.html" title="Chapter 10. Variables Glossary"> | ||
| 10 | <link rel="next" href="ref-varlocality-configuration.html" title="11.1. Configuration"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 11. Variable Context"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="ref-varlocality"></a>Chapter 11. Variable Context</h2></div></div></div> | ||
| 15 | <div class="toc"> | ||
| 16 | <p><b>Table of Contents</b></p> | ||
| 17 | <dl> | ||
| 18 | <dt><span class="section"><a href="ref-varlocality-configuration.html">11.1. Configuration</a></span></dt> | ||
| 19 | <dd><dl> | ||
| 20 | <dt><span class="section"><a href="ref-varlocality-config-distro.html">11.1.1. Distribution (Distro)</a></span></dt> | ||
| 21 | <dt><span class="section"><a href="ref-varlocality-config-machine.html">11.1.2. Machine</a></span></dt> | ||
| 22 | <dt><span class="section"><a href="ref-varlocality-config-local.html">11.1.3. Local</a></span></dt> | ||
| 23 | </dl></dd> | ||
| 24 | <dt><span class="section"><a href="ref-varlocality-recipes.html">11.2. Recipes</a></span></dt> | ||
| 25 | <dd><dl> | ||
| 26 | <dt><span class="section"><a href="ref-varlocality-recipe-required.html">11.2.1. Required</a></span></dt> | ||
| 27 | <dt><span class="section"><a href="ref-varlocality-recipe-dependencies.html">11.2.2. Dependencies</a></span></dt> | ||
| 28 | <dt><span class="section"><a href="ref-varlocality-recipe-paths.html">11.2.3. Paths</a></span></dt> | ||
| 29 | <dt><span class="section"><a href="ref-varlocality-recipe-build.html">11.2.4. Extra Build Information</a></span></dt> | ||
| 30 | </dl></dd> | ||
| 31 | </dl> | ||
| 32 | </div> | ||
| 33 | <p> | ||
| 34 | While most variables can be used in almost any context such as | ||
| 35 | <code class="filename">.conf</code>, <code class="filename">.bbclass</code>, | ||
| 36 | <code class="filename">.inc</code>, and <code class="filename">.bb</code> files, | ||
| 37 | some variables are often associated with a particular locality or context. | ||
| 38 | This chapter describes some common associations. | ||
| 39 | </p> | ||
| 40 | </div></body> | ||
| 41 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/required-packages-for-the-host-development-system.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/required-packages-for-the-host-development-system.html new file mode 100644 index 0000000000..5100bbcb29 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/required-packages-for-the-host-development-system.html | |||
| @@ -0,0 +1,22 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>1.3.2. Required Packages for the Host Development System</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="intro-requirements.html" title="1.3. System Requirements"> | ||
| 9 | <link rel="prev" href="detailed-supported-distros.html" title="1.3.1. Supported Linux Distributions"> | ||
| 10 | <link rel="next" href="ubuntu-packages.html" title="1.3.2.1. Ubuntu"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="1.3.2. Required Packages for the Host Development System"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="required-packages-for-the-host-development-system"></a>1.3.2. Required Packages for the Host Development System</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | The list of packages you need on the host development system can | ||
| 17 | be large when covering all build scenarios using the Yocto Project. | ||
| 18 | This section provides required packages by Linux distribution and | ||
| 19 | further categorized by function. | ||
| 20 | </p> | ||
| 21 | </div></body> | ||
| 22 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-bugtracker.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-bugtracker.html new file mode 100644 index 0000000000..4b4f994671 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-bugtracker.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>13.2. Tracking Bugs</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="resources.html" title="Chapter 13. Contributing to the Yocto Project"> | ||
| 9 | <link rel="prev" href="resources-intro.html" title="13.1. Introduction"> | ||
| 10 | <link rel="next" href="resources-mailinglist.html" title="13.3. Mailing lists"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="13.2. Tracking Bugs"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="resources-bugtracker"></a>13.2. Tracking Bugs</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | If you find problems with the Yocto Project, you should report them using the | ||
| 17 | Bugzilla application at <a class="ulink" href="http://bugzilla.yoctoproject.org" target="_self">http://bugzilla.yoctoproject.org</a>. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-contributions.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-contributions.html new file mode 100644 index 0000000000..c7d8c539ae --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-contributions.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>13.6. Contributions</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="resources.html" title="Chapter 13. Contributing to the Yocto Project"> | ||
| 9 | <link rel="prev" href="resources-links.html" title="13.5. Links"> | ||
| 10 | </head> | ||
| 11 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="13.6. Contributions"> | ||
| 12 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 13 | <a name="resources-contributions"></a>13.6. Contributions</h2></div></div></div> | ||
| 14 | <p> | ||
| 15 | The Yocto Project gladly accepts contributions. | ||
| 16 | You can submit changes to the project either by creating and sending pull requests, | ||
| 17 | or by submitting patches through email. | ||
| 18 | For information on how to do both, see the | ||
| 19 | "<a class="link" href="../dev-manual/how-to-submit-a-change.html" target="_self">How to Submit a Change</a>" | ||
| 20 | section in the Yocto Project Development Manual. | ||
| 21 | </p> | ||
| 22 | </div></body> | ||
| 23 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-intro.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-intro.html new file mode 100644 index 0000000000..c7340ff313 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-intro.html | |||
| @@ -0,0 +1,23 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>13.1. Introduction</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="resources.html" title="Chapter 13. Contributing to the Yocto Project"> | ||
| 9 | <link rel="prev" href="resources.html" title="Chapter 13. Contributing to the Yocto Project"> | ||
| 10 | <link rel="next" href="resources-bugtracker.html" title="13.2. Tracking Bugs"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="13.1. Introduction"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="resources-intro"></a>13.1. Introduction</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | The Yocto Project team is happy for people to experiment with the Yocto Project. | ||
| 17 | A number of places exist to find help if you run into difficulties or find bugs. | ||
| 18 | To find out how to download source code, | ||
| 19 | see the "<a class="link" href="../dev-manual/local-yp-release.html" target="_self">Yocto Project Release</a>" | ||
| 20 | list item in the Yocto Project Development Manual. | ||
| 21 | </p> | ||
| 22 | </div></body> | ||
| 23 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-irc.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-irc.html new file mode 100644 index 0000000000..5a611fa6a8 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-irc.html | |||
| @@ -0,0 +1,25 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>13.4. Internet Relay Chat (IRC)</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="resources.html" title="Chapter 13. Contributing to the Yocto Project"> | ||
| 9 | <link rel="prev" href="resources-mailinglist.html" title="13.3. Mailing lists"> | ||
| 10 | <link rel="next" href="resources-links.html" title="13.5. Links"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="13.4. Internet Relay Chat (IRC)"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="resources-irc"></a>13.4. Internet Relay Chat (IRC)</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | Two IRC channels on freenode are available for the Yocto Project and Poky discussions: | ||
| 17 | </p> | ||
| 18 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 19 | <li class="listitem"><p><code class="filename">#yocto</code></p></li> | ||
| 20 | <li class="listitem"><p><code class="filename">#poky</code></p></li> | ||
| 21 | </ul></div> | ||
| 22 | <p> | ||
| 23 | </p> | ||
| 24 | </div></body> | ||
| 25 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-links.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-links.html new file mode 100644 index 0000000000..0a153b8f01 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-links.html | |||
| @@ -0,0 +1,42 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>13.5. Links</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="resources.html" title="Chapter 13. Contributing to the Yocto Project"> | ||
| 9 | <link rel="prev" href="resources-irc.html" title="13.4. Internet Relay Chat (IRC)"> | ||
| 10 | <link rel="next" href="resources-contributions.html" title="13.6. Contributions"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="13.5. Links"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="resources-links"></a>13.5. Links</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | Following is a list of resources you will find helpful: | ||
| 17 | </p> | ||
| 18 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 19 | <li class="listitem"><p><span class="emphasis"><em><a class="ulink" href="http://www.yoctoproject.org" target="_self">The Yocto Project website</a>: | ||
| 20 | </em></span> The home site for the Yocto Project.</p></li> | ||
| 21 | <li class="listitem"><p><span class="emphasis"><em><a class="ulink" href="http://www.intel.com/" target="_self">Intel Corporation</a>:</em></span> | ||
| 22 | The company who acquired OpenedHand in 2008 and began development on the | ||
| 23 | Yocto Project.</p></li> | ||
| 24 | <li class="listitem"><p><span class="emphasis"><em><a class="ulink" href="http://www.openembedded.org" target="_self">OpenEmbedded</a>:</em></span> | ||
| 25 | The upstream, generic, embedded distribution used as the basis for the build system in the | ||
| 26 | Yocto Project. | ||
| 27 | Poky derives from and contributes back to the OpenEmbedded project.</p></li> | ||
| 28 | <li class="listitem"><p><span class="emphasis"><em><a class="ulink" href="http://developer.berlios.de/projects/bitbake/" target="_self"> | ||
| 29 | BitBake</a>:</em></span> The tool used to process metadata.</p></li> | ||
| 30 | <li class="listitem"><p><span class="emphasis"><em>BitBake User Manual:</em></span> | ||
| 31 | A comprehensive guide to the BitBake tool. | ||
| 32 | You can find the BitBake User Manual in the <code class="filename">bitbake/doc/manual</code> | ||
| 33 | directory, which is found in the | ||
| 34 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 35 | </p></li> | ||
| 36 | <li class="listitem"><p><span class="emphasis"><em><a class="ulink" href="http://wiki.qemu.org/Index.html" target="_self">QEMU</a>: | ||
| 37 | </em></span> An open source machine emulator and virtualizer.</p></li> | ||
| 38 | </ul></div> | ||
| 39 | <p> | ||
| 40 | </p> | ||
| 41 | </div></body> | ||
| 42 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-mailinglist.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-mailinglist.html new file mode 100644 index 0000000000..3cc05beea4 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources-mailinglist.html | |||
| @@ -0,0 +1,39 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>13.3. Mailing lists</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="resources.html" title="Chapter 13. Contributing to the Yocto Project"> | ||
| 9 | <link rel="prev" href="resources-bugtracker.html" title="13.2. Tracking Bugs"> | ||
| 10 | <link rel="next" href="resources-irc.html" title="13.4. Internet Relay Chat (IRC)"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="13.3. Mailing lists"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="resources-mailinglist"></a>13.3. Mailing lists</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | There are a number of mailing lists maintained by the Yocto Project as well as | ||
| 17 | related OpenEmbedded mailing lists for discussion, patch submission and announcements. | ||
| 18 | To subscribe to one of the following mailing lists, click on the appropriate URL | ||
| 19 | in the following list and follow the instructions: | ||
| 20 | </p> | ||
| 21 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 22 | <li class="listitem"><p><a class="ulink" href="http://lists.yoctoproject.org/listinfo/yocto" target="_self">http://lists.yoctoproject.org/listinfo/yocto</a> - | ||
| 23 | General Yocto Project discussion mailing list. </p></li> | ||
| 24 | <li class="listitem"><p><a class="ulink" href="http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core" target="_self">http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core</a> - | ||
| 25 | Discussion mailing list about OpenEmbedded-Core (the core metadata).</p></li> | ||
| 26 | <li class="listitem"><p><a class="ulink" href="http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-devel" target="_self">http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-devel</a> - | ||
| 27 | Discussion mailing list about OpenEmbedded.</p></li> | ||
| 28 | <li class="listitem"><p><a class="ulink" href="http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/bitbake-devel" target="_self">http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/bitbake-devel</a> - | ||
| 29 | Discussion mailing list about the BitBake build tool.</p></li> | ||
| 30 | <li class="listitem"><p><a class="ulink" href="http://lists.yoctoproject.org/listinfo/poky" target="_self">http://lists.yoctoproject.org/listinfo/poky</a> - | ||
| 31 | Discussion mailing list about Poky.</p></li> | ||
| 32 | <li class="listitem"><p><a class="ulink" href="http://lists.yoctoproject.org/listinfo/yocto-announce" target="_self">http://lists.yoctoproject.org/listinfo/yocto-announce</a> - | ||
| 33 | Mailing list to receive official Yocto Project release and milestone | ||
| 34 | announcements.</p></li> | ||
| 35 | </ul></div> | ||
| 36 | <p> | ||
| 37 | </p> | ||
| 38 | </div></body> | ||
| 39 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/resources.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources.html new file mode 100644 index 0000000000..c97f06e0c2 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/resources.html | |||
| @@ -0,0 +1,27 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 13. Contributing to the Yocto Project</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="faq.html" title="Chapter 12. FAQ"> | ||
| 10 | <link rel="next" href="resources-intro.html" title="13.1. Introduction"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 13. Contributing to the Yocto Project"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="resources"></a>Chapter 13. Contributing to the Yocto Project</h2></div></div></div> | ||
| 15 | <div class="toc"> | ||
| 16 | <p><b>Table of Contents</b></p> | ||
| 17 | <dl> | ||
| 18 | <dt><span class="section"><a href="resources-intro.html">13.1. Introduction</a></span></dt> | ||
| 19 | <dt><span class="section"><a href="resources-bugtracker.html">13.2. Tracking Bugs</a></span></dt> | ||
| 20 | <dt><span class="section"><a href="resources-mailinglist.html">13.3. Mailing lists</a></span></dt> | ||
| 21 | <dt><span class="section"><a href="resources-irc.html">13.4. Internet Relay Chat (IRC)</a></span></dt> | ||
| 22 | <dt><span class="section"><a href="resources-links.html">13.5. Links</a></span></dt> | ||
| 23 | <dt><span class="section"><a href="resources-contributions.html">13.6. Contributions</a></span></dt> | ||
| 24 | </dl> | ||
| 25 | </div> | ||
| 26 | </div></body> | ||
| 27 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/shared-state-cache.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/shared-state-cache.html new file mode 100644 index 0000000000..8f2f5a5ed6 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/shared-state-cache.html | |||
| @@ -0,0 +1,60 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.2. Shared State Cache</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="technical-details.html" title="Chapter 3. Technical Details"> | ||
| 9 | <link rel="prev" href="usingpoky-components-configuration.html" title="3.1.4. Configuration"> | ||
| 10 | <link rel="next" href="overall-architecture.html" title="3.2.1. Overall Architecture"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.2. Shared State Cache"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="shared-state-cache"></a>3.2. Shared State Cache</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | By design, the OpenEmbedded build system builds everything from scratch unless | ||
| 17 | BitBake can determine that parts don't need to be rebuilt. | ||
| 18 | Fundamentally, building from scratch is attractive as it means all parts are | ||
| 19 | built fresh and there is no possibility of stale data causing problems. | ||
| 20 | When developers hit problems, they typically default back to building from scratch | ||
| 21 | so they know the state of things from the start. | ||
| 22 | </p> | ||
| 23 | <p> | ||
| 24 | Building an image from scratch is both an advantage and a disadvantage to the process. | ||
| 25 | As mentioned in the previous paragraph, building from scratch ensures that | ||
| 26 | everything is current and starts from a known state. | ||
| 27 | However, building from scratch also takes much longer as it generally means | ||
| 28 | rebuilding things that don't necessarily need rebuilt. | ||
| 29 | </p> | ||
| 30 | <p> | ||
| 31 | The Yocto Project implements shared state code that supports incremental builds. | ||
| 32 | The implementation of the shared state code answers the following questions that | ||
| 33 | were fundamental roadblocks within the OpenEmbedded incremental build support system: | ||
| 34 | </p> | ||
| 35 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 36 | <li class="listitem">What pieces of the system have changed and what pieces have not changed?</li> | ||
| 37 | <li class="listitem">How are changed pieces of software removed and replaced?</li> | ||
| 38 | <li class="listitem">How are pre-built components that don't need to be rebuilt from scratch | ||
| 39 | used when they are available?</li> | ||
| 40 | </ul></div> | ||
| 41 | <p> | ||
| 42 | </p> | ||
| 43 | <p> | ||
| 44 | For the first question, the build system detects changes in the "inputs" to a given task by | ||
| 45 | creating a checksum (or signature) of the task's inputs. | ||
| 46 | If the checksum changes, the system assumes the inputs have changed and the task needs to be | ||
| 47 | rerun. | ||
| 48 | For the second question, the shared state (sstate) code tracks which tasks add which output | ||
| 49 | to the build process. | ||
| 50 | This means the output from a given task can be removed, upgraded or otherwise manipulated. | ||
| 51 | The third question is partly addressed by the solution for the second question | ||
| 52 | assuming the build system can fetch the sstate objects from remote locations and | ||
| 53 | install them if they are deemed to be valid. | ||
| 54 | </p> | ||
| 55 | <p> | ||
| 56 | The rest of this section goes into detail about the overall incremental build | ||
| 57 | architecture, the checksums (signatures), shared state, and some tips and tricks. | ||
| 58 | </p> | ||
| 59 | </div></body> | ||
| 60 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/shared-state.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/shared-state.html new file mode 100644 index 0000000000..e14e306eb5 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/shared-state.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.2.3. Shared State</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="shared-state-cache.html" title="3.2. Shared State Cache"> | ||
| 9 | <link rel="prev" href="checksums.html" title="3.2.2. Checksums (Signatures)"> | ||
| 10 | <link rel="next" href="tips-and-tricks.html" title="3.2.4. Tips and Tricks"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.2.3. Shared State"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="shared-state"></a>3.2.3. Shared State</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | Checksums and dependencies, as discussed in the previous section, solve half the | ||
| 17 | problem. | ||
| 18 | The other part of the problem is being able to use checksum information during the build | ||
| 19 | and being able to reuse or rebuild specific components. | ||
| 20 | </p> | ||
| 21 | <p> | ||
| 22 | The shared state class (<code class="filename">sstate.bbclass</code>) | ||
| 23 | is a relatively generic implementation of how to "capture" a snapshot of a given task. | ||
| 24 | The idea is that the build process does not care about the source of a task's output. | ||
| 25 | Output could be freshly built or it could be downloaded and unpacked from | ||
| 26 | somewhere - the build process doesn't need to worry about its source. | ||
| 27 | </p> | ||
| 28 | <p> | ||
| 29 | There are two types of output, one is just about creating a directory | ||
| 30 | in <code class="filename">WORKDIR</code>. | ||
| 31 | A good example is the output of either <code class="filename">do_install</code> or | ||
| 32 | <code class="filename">do_package</code>. | ||
| 33 | The other type of output occurs when a set of data is merged into a shared directory | ||
| 34 | tree such as the sysroot. | ||
| 35 | </p> | ||
| 36 | <p> | ||
| 37 | The Yocto Project team has tried to keep the details of the implementation hidden in | ||
| 38 | <code class="filename">sstate.bbclass</code>. | ||
| 39 | From a user's perspective, adding shared state wrapping to a task | ||
| 40 | is as simple as this <code class="filename">do_deploy</code> example taken from | ||
| 41 | <code class="filename">do_deploy.bbclass</code>: | ||
| 42 | </p> | ||
| 43 | <pre class="literallayout"> | ||
| 44 | DEPLOYDIR = "${WORKDIR}/deploy-${PN}" | ||
| 45 | SSTATETASKS += "do_deploy" | ||
| 46 | do_deploy[sstate-name] = "deploy" | ||
| 47 | do_deploy[sstate-inputdirs] = "${DEPLOYDIR}" | ||
| 48 | do_deploy[sstate-outputdirs] = "${DEPLOY_DIR_IMAGE}" | ||
| 49 | |||
| 50 | python do_deploy_setscene () { | ||
| 51 | sstate_setscene(d) | ||
| 52 | } | ||
| 53 | addtask do_deploy_setscene | ||
| 54 | </pre> | ||
| 55 | <p> | ||
| 56 | In the example, we add some extra flags to the task, a name field ("deploy"), an | ||
| 57 | input directory where the task sends data, and the output | ||
| 58 | directory where the data from the task should eventually be copied. | ||
| 59 | We also add a <code class="filename">_setscene</code> variant of the task and add the task | ||
| 60 | name to the <code class="filename">SSTATETASKS</code> list. | ||
| 61 | </p> | ||
| 62 | <p> | ||
| 63 | If you have a directory whose contents you need to preserve, you can do this with | ||
| 64 | a line like the following: | ||
| 65 | </p> | ||
| 66 | <pre class="literallayout"> | ||
| 67 | do_package[sstate-plaindirs] = "${PKGD} ${PKGDEST}" | ||
| 68 | </pre> | ||
| 69 | <p> | ||
| 70 | This method, as well as the following example, also works for multiple directories. | ||
| 71 | </p> | ||
| 72 | <pre class="literallayout"> | ||
| 73 | do_package[sstate-inputdirs] = "${PKGDESTWORK} ${SHLIBSWORKDIR}" | ||
| 74 | do_package[sstate-outputdirs] = "${PKGDATA_DIR} ${SHLIBSDIR}" | ||
| 75 | do_package[sstate-lockfile] = "${PACKAGELOCK}" | ||
| 76 | </pre> | ||
| 77 | <p> | ||
| 78 | These methods also include the ability to take a lockfile when manipulating | ||
| 79 | shared state directory structures since some cases are sensitive to file | ||
| 80 | additions or removals. | ||
| 81 | </p> | ||
| 82 | <p> | ||
| 83 | Behind the scenes, the shared state code works by looking in | ||
| 84 | <a class="link" href="ref-variables-glos.html#var-SSTATE_DIR" title="SSTATE_DIR"><code class="filename">SSTATE_DIR</code></a> and | ||
| 85 | <a class="link" href="ref-variables-glos.html#var-SSTATE_MIRRORS" title="SSTATE_MIRRORS"><code class="filename">SSTATE_MIRRORS</code></a> | ||
| 86 | for shared state files. | ||
| 87 | Here is an example: | ||
| 88 | </p> | ||
| 89 | <pre class="literallayout"> | ||
| 90 | SSTATE_MIRRORS ?= "\ | ||
| 91 | file://.* http://someserver.tld/share/sstate/PATH \n \ | ||
| 92 | file://.* file:///some/local/dir/sstate/PATH" | ||
| 93 | </pre> | ||
| 94 | <p> | ||
| 95 | </p> | ||
| 96 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 97 | <h3 class="title">Note</h3> | ||
| 98 | The shared state directory (<code class="filename">SSTATE_DIR</code>) is | ||
| 99 | organized into two-character subdirectories, where the subdirectory | ||
| 100 | names are based on the first two characters of the hash. | ||
| 101 | If the shared state directory structure for a mirror has the | ||
| 102 | same structure as <code class="filename">SSTATE_DIR</code>, you must | ||
| 103 | specify "PATH" as part of the URI to enable the build system | ||
| 104 | to map to the appropriate subdirectory. | ||
| 105 | </div> | ||
| 106 | <p> | ||
| 107 | </p> | ||
| 108 | <p> | ||
| 109 | The shared state package validity can be detected just by looking at the | ||
| 110 | filename since the filename contains the task checksum (or signature) as | ||
| 111 | described earlier in this section. | ||
| 112 | If a valid shared state package is found, the build process downloads it | ||
| 113 | and uses it to accelerate the task. | ||
| 114 | </p> | ||
| 115 | <p> | ||
| 116 | The build processes uses the <code class="filename">*_setscene</code> tasks | ||
| 117 | for the task acceleration phase. | ||
| 118 | BitBake goes through this phase before the main execution code and tries | ||
| 119 | to accelerate any tasks for which it can find shared state packages. | ||
| 120 | If a shared state package for a task is available, the shared state | ||
| 121 | package is used. | ||
| 122 | This means the task and any tasks on which it is dependent are not | ||
| 123 | executed. | ||
| 124 | </p> | ||
| 125 | <p> | ||
| 126 | As a real world example, the aim is when building an IPK-based image, | ||
| 127 | only the <code class="filename">do_package_write_ipk</code> tasks would have their | ||
| 128 | shared state packages fetched and extracted. | ||
| 129 | Since the sysroot is not used, it would never get extracted. | ||
| 130 | This is another reason why a task-based approach is preferred over a | ||
| 131 | recipe-based approach, which would have to install the output from every task. | ||
| 132 | </p> | ||
| 133 | </div></body> | ||
| 134 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-basic-top-level.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-basic-top-level.html new file mode 100644 index 0000000000..62bdd6b748 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-basic-top-level.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.1.11. LICENSE, README, and README.hardware</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-core.html" title="5.1. Top level core components"> | ||
| 9 | <link rel="prev" href="structure-core-script.html" title="5.1.10. oe-init-build-env"> | ||
| 10 | <link rel="next" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.1.11. LICENSE, README, and README.hardware"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-basic-top-level"></a>5.1.11. <code class="filename">LICENSE, README, and README.hardware</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | These files are standard top-level files. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-conf-bblayers.conf.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-conf-bblayers.conf.html new file mode 100644 index 0000000000..74f7729330 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-conf-bblayers.conf.html | |||
| @@ -0,0 +1,23 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.3. build/conf/bblayers.conf</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-conf-local.conf.html" title="5.2.2. build/conf/local.conf"> | ||
| 10 | <link rel="next" href="structure-build-conf-sanity_info.html" title="5.2.4. build/conf/sanity_info"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.3. build/conf/bblayers.conf"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-conf-bblayers.conf"></a>5.2.3. <code class="filename">build/conf/bblayers.conf</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This file defines layers, which is a directory tree, traversed (or walked) by BitBake. | ||
| 18 | If <code class="filename">bblayers.conf</code> | ||
| 19 | is not present, it is created from <code class="filename">bblayers.conf.sample</code> when | ||
| 20 | you <code class="filename">source</code> the environment setup script. | ||
| 21 | </p> | ||
| 22 | </div></body> | ||
| 23 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-conf-local.conf.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-conf-local.conf.html new file mode 100644 index 0000000000..30f1c10881 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-conf-local.conf.html | |||
| @@ -0,0 +1,37 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.2. build/conf/local.conf</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-pseudodone.html" title="5.2.1. build/pseudodone"> | ||
| 10 | <link rel="next" href="structure-build-conf-bblayers.conf.html" title="5.2.3. build/conf/bblayers.conf"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.2. build/conf/local.conf"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-conf-local.conf"></a>5.2.2. <code class="filename">build/conf/local.conf</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This file contains all the local user configuration for your build environment. | ||
| 18 | If there is no <code class="filename">local.conf</code> present, it is created from | ||
| 19 | <code class="filename">local.conf.sample</code>. | ||
| 20 | The <code class="filename">local.conf</code> file contains documentation on the various configuration options. | ||
| 21 | Any variable set here overrides any variable set elsewhere within the environment unless | ||
| 22 | that variable is hard-coded within a file (e.g. by using '=' instead of '?='). | ||
| 23 | Some variables are hard-coded for various reasons but these variables are | ||
| 24 | relatively rare. | ||
| 25 | </p> | ||
| 26 | <p> | ||
| 27 | Edit this file to set the <code class="filename"><a class="link" href="ref-variables-glos.html#var-MACHINE" title="MACHINE">MACHINE</a></code> | ||
| 28 | for which you want to build, which package types you wish to use | ||
| 29 | (<a class="link" href="ref-variables-glos.html#var-PACKAGE_CLASSES" title="PACKAGE_CLASSES"><code class="filename">PACKAGE_CLASSES</code></a>), | ||
| 30 | where you want to downloaded files | ||
| 31 | (<code class="filename"><a class="link" href="ref-variables-glos.html#var-DL_DIR" title="DL_DIR">DL_DIR</a></code>), | ||
| 32 | and how you want your host machine to use resources | ||
| 33 | (<a class="link" href="ref-variables-glos.html#var-BB_NUMBER_THREADS" title="BB_NUMBER_THREADS"><code class="filename">BB_NUMBER_THREADS</code></a> and | ||
| 34 | <a class="link" href="ref-variables-glos.html#var-PARALLEL_MAKE" title="PARALLEL_MAKE"><code class="filename">PARALLEL_MAKE</code></a>). | ||
| 35 | </p> | ||
| 36 | </div></body> | ||
| 37 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-conf-sanity_info.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-conf-sanity_info.html new file mode 100644 index 0000000000..7cb04282b9 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-conf-sanity_info.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.4. build/conf/sanity_info</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-conf-bblayers.conf.html" title="5.2.3. build/conf/bblayers.conf"> | ||
| 10 | <link rel="next" href="structure-build-downloads.html" title="5.2.5. build/downloads/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.4. build/conf/sanity_info"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-conf-sanity_info"></a>5.2.4. <code class="filename">build/conf/sanity_info</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This file is created during the build to indicate the state of the sanity checks. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-downloads.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-downloads.html new file mode 100644 index 0000000000..5ca90d8d8d --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-downloads.html | |||
| @@ -0,0 +1,23 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.5. build/downloads/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-conf-sanity_info.html" title="5.2.4. build/conf/sanity_info"> | ||
| 10 | <link rel="next" href="structure-build-sstate-cache.html" title="5.2.6. build/sstate-cache/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.5. build/downloads/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-downloads"></a>5.2.5. <code class="filename">build/downloads/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory is used for the upstream source tarballs. | ||
| 18 | The directory can be reused by multiple builds or moved to another location. | ||
| 19 | You can control the location of this directory through the | ||
| 20 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-DL_DIR" title="DL_DIR">DL_DIR</a></code> variable. | ||
| 21 | </p> | ||
| 22 | </div></body> | ||
| 23 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-pseudodone.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-pseudodone.html new file mode 100644 index 0000000000..74f4cd4a90 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-pseudodone.html | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.1. build/pseudodone</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 10 | <link rel="next" href="structure-build-conf-local.conf.html" title="5.2.2. build/conf/local.conf"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.1. build/pseudodone"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-pseudodone"></a>5.2.1. <code class="filename">build/pseudodone</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This tag file indicates that the initial pseudo binary was created. | ||
| 18 | The file is built the first time BitBake is invoked. | ||
| 19 | </p> | ||
| 20 | </div></body> | ||
| 21 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-sstate-cache.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-sstate-cache.html new file mode 100644 index 0000000000..f1cb3d291b --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-sstate-cache.html | |||
| @@ -0,0 +1,23 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.6. build/sstate-cache/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-downloads.html" title="5.2.5. build/downloads/"> | ||
| 10 | <link rel="next" href="structure-build-tmp.html" title="5.2.7. build/tmp/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.6. build/sstate-cache/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-sstate-cache"></a>5.2.6. <code class="filename">build/sstate-cache/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory is used for the shared state cache. | ||
| 18 | The directory can be reused by multiple builds or moved to another location. | ||
| 19 | You can control the location of this directory through the | ||
| 20 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-SSTATE_DIR" title="SSTATE_DIR">SSTATE_DIR</a></code> variable. | ||
| 21 | </p> | ||
| 22 | </div></body> | ||
| 23 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-buildstats.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-buildstats.html new file mode 100644 index 0000000000..c1ad81c98a --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-buildstats.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.8. build/tmp/buildstats/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-tmp.html" title="5.2.7. build/tmp/"> | ||
| 10 | <link rel="next" href="structure-build-tmp-cache.html" title="5.2.9. build/tmp/cache/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.8. build/tmp/buildstats/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp-buildstats"></a>5.2.8. <code class="filename">build/tmp/buildstats/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory stores the build statistics. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-cache.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-cache.html new file mode 100644 index 0000000000..d18f201c6c --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-cache.html | |||
| @@ -0,0 +1,22 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.9. build/tmp/cache/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-tmp-buildstats.html" title="5.2.8. build/tmp/buildstats/"> | ||
| 10 | <link rel="next" href="structure-build-tmp-deploy.html" title="5.2.10. build/tmp/deploy/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.9. build/tmp/cache/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp-cache"></a>5.2.9. <code class="filename">build/tmp/cache/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | When BitBake parses the metadata, it creates a cache file of the result that can | ||
| 18 | be used when subsequently running commands. | ||
| 19 | These results are stored here on a per-machine basis. | ||
| 20 | </p> | ||
| 21 | </div></body> | ||
| 22 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-deb.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-deb.html new file mode 100644 index 0000000000..42647f54d0 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-deb.html | |||
| @@ -0,0 +1,22 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.11. build/tmp/deploy/deb/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-tmp-deploy.html" title="5.2.10. build/tmp/deploy/"> | ||
| 10 | <link rel="next" href="structure-build-tmp-deploy-rpm.html" title="5.2.12. build/tmp/deploy/rpm/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.11. build/tmp/deploy/deb/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp-deploy-deb"></a>5.2.11. <code class="filename">build/tmp/deploy/deb/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory receives any <code class="filename">.deb</code> packages produced by | ||
| 18 | the build process. | ||
| 19 | The packages are sorted into feeds for different architecture types. | ||
| 20 | </p> | ||
| 21 | </div></body> | ||
| 22 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-images.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-images.html new file mode 100644 index 0000000000..b2810d2a76 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-images.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.14. build/tmp/deploy/images/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-tmp-deploy-licenses.html" title="5.2.13. build/tmp/deploy/licenses/"> | ||
| 10 | <link rel="next" href="structure-build-tmp-deploy-ipk.html" title="5.2.15. build/tmp/deploy/ipk/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.14. build/tmp/deploy/images/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp-deploy-images"></a>5.2.14. <code class="filename">build/tmp/deploy/images/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory receives complete filesystem images. | ||
| 18 | If you want to flash the resulting image from a build onto a device, look here for the image. | ||
| 19 | </p> | ||
| 20 | <p> | ||
| 21 | Be careful when deleting files in this directory. | ||
| 22 | You can safely delete old images from this directory (e.g. | ||
| 23 | <code class="filename">core-image-*</code>, <code class="filename">hob-image-*</code>, | ||
| 24 | etc.). | ||
| 25 | However, the kernel (<code class="filename">*zImage*</code>, <code class="filename">*uImage*</code>, etc.), | ||
| 26 | bootloader and other supplementary files might be deployed here prior to building an | ||
| 27 | image. | ||
| 28 | Because these files, however, are not directly produced from the image, if you | ||
| 29 | delete them they will not be automatically re-created when you build the image again. | ||
| 30 | </p> | ||
| 31 | <p> | ||
| 32 | If you do accidentally delete files here, you will need to force them to be | ||
| 33 | re-created. | ||
| 34 | In order to do that, you will need to know the target that produced them. | ||
| 35 | For example, these commands rebuild and re-create the kernel files: | ||
| 36 | </p> | ||
| 37 | <pre class="literallayout"> | ||
| 38 | $ bitbake -c clean virtual/kernel | ||
| 39 | $ bitbake virtual/kernel | ||
| 40 | </pre> | ||
| 41 | <p> | ||
| 42 | </p> | ||
| 43 | </div></body> | ||
| 44 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-ipk.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-ipk.html new file mode 100644 index 0000000000..9975833326 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-ipk.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.15. build/tmp/deploy/ipk/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-tmp-deploy-images.html" title="5.2.14. build/tmp/deploy/images/"> | ||
| 10 | <link rel="next" href="structure-build-tmp-sysroots.html" title="5.2.16. build/tmp/sysroots/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.15. build/tmp/deploy/ipk/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp-deploy-ipk"></a>5.2.15. <code class="filename">build/tmp/deploy/ipk/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory receives <code class="filename">.ipk</code> packages produced by | ||
| 18 | the build process.</p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-licenses.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-licenses.html new file mode 100644 index 0000000000..b3ec898551 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-licenses.html | |||
| @@ -0,0 +1,23 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.13. build/tmp/deploy/licenses/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-tmp-deploy-rpm.html" title="5.2.12. build/tmp/deploy/rpm/"> | ||
| 10 | <link rel="next" href="structure-build-tmp-deploy-images.html" title="5.2.14. build/tmp/deploy/images/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.13. build/tmp/deploy/licenses/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp-deploy-licenses"></a>5.2.13. <code class="filename">build/tmp/deploy/licenses/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory receives package licensing information. | ||
| 18 | For example, the directory contains sub-directories for <code class="filename">bash</code>, | ||
| 19 | <code class="filename">busybox</code>, and <code class="filename">eglibc</code> (among others) that in turn | ||
| 20 | contain appropriate <code class="filename">COPYING</code> license files with other licensing information. | ||
| 21 | </p> | ||
| 22 | </div></body> | ||
| 23 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-rpm.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-rpm.html new file mode 100644 index 0000000000..1579e1131e --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy-rpm.html | |||
| @@ -0,0 +1,22 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.12. build/tmp/deploy/rpm/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-tmp-deploy-deb.html" title="5.2.11. build/tmp/deploy/deb/"> | ||
| 10 | <link rel="next" href="structure-build-tmp-deploy-licenses.html" title="5.2.13. build/tmp/deploy/licenses/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.12. build/tmp/deploy/rpm/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp-deploy-rpm"></a>5.2.12. <code class="filename">build/tmp/deploy/rpm/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory receives any <code class="filename">.rpm</code> packages produced by | ||
| 18 | the build process. | ||
| 19 | The packages are sorted into feeds for different architecture types. | ||
| 20 | </p> | ||
| 21 | </div></body> | ||
| 22 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy.html new file mode 100644 index 0000000000..b50f20802f --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-deploy.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.10. build/tmp/deploy/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-tmp-cache.html" title="5.2.9. build/tmp/cache/"> | ||
| 10 | <link rel="next" href="structure-build-tmp-deploy-deb.html" title="5.2.11. build/tmp/deploy/deb/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.10. build/tmp/deploy/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp-deploy"></a>5.2.10. <code class="filename">build/tmp/deploy/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains any 'end result' output from the OpenEmbedded build process. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-log.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-log.html new file mode 100644 index 0000000000..bd7f7053cf --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-log.html | |||
| @@ -0,0 +1,24 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.18. build/tmp/log/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-tmp-stamps.html" title="5.2.17. build/tmp/stamps/"> | ||
| 10 | <link rel="next" href="structure-build-tmp-pkgdata.html" title="5.2.19. build/tmp/pkgdata/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.18. build/tmp/log/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp-log"></a>5.2.18. <code class="filename">build/tmp/log/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains general logs that are not otherwise placed using the | ||
| 18 | package's <code class="filename"><a class="link" href="ref-variables-glos.html#var-WORKDIR" title="WORKDIR">WORKDIR</a></code>. | ||
| 19 | Examples of logs are the output from the <code class="filename">check_pkg</code> or | ||
| 20 | <code class="filename">distro_check</code> tasks. | ||
| 21 | Running a build does not necessarily mean this directory is created. | ||
| 22 | </p> | ||
| 23 | </div></body> | ||
| 24 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-pkgdata.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-pkgdata.html new file mode 100644 index 0000000000..2fdad1ee31 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-pkgdata.html | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.19. build/tmp/pkgdata/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-tmp-log.html" title="5.2.18. build/tmp/log/"> | ||
| 10 | <link rel="next" href="structure-build-tmp-work.html" title="5.2.20. build/tmp/work/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.19. build/tmp/pkgdata/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp-pkgdata"></a>5.2.19. <code class="filename">build/tmp/pkgdata/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains intermediate packaging data that is used later in the packaging process. | ||
| 18 | For more information, see the "<a class="link" href="ref-classes-package.html" title="7.13. Packaging - package*.bbclass">Packaging - package*.bbclass</a>" section. | ||
| 19 | </p> | ||
| 20 | </div></body> | ||
| 21 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-stamps.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-stamps.html new file mode 100644 index 0000000000..a6f77c8ff3 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-stamps.html | |||
| @@ -0,0 +1,24 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.17. build/tmp/stamps/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-tmp-sysroots.html" title="5.2.16. build/tmp/sysroots/"> | ||
| 10 | <link rel="next" href="structure-build-tmp-log.html" title="5.2.18. build/tmp/log/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.17. build/tmp/stamps/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp-stamps"></a>5.2.17. <code class="filename">build/tmp/stamps/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory holds information that that BitBake uses for accounting purposes | ||
| 18 | to track what tasks have run and when they have run. | ||
| 19 | The directory is sub-divided by architecture. | ||
| 20 | The files in the directory are empty of data. | ||
| 21 | However, BitBake uses the filenames and timestamps for tracking purposes. | ||
| 22 | </p> | ||
| 23 | </div></body> | ||
| 24 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-sysroots.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-sysroots.html new file mode 100644 index 0000000000..10a74d805e --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-sysroots.html | |||
| @@ -0,0 +1,24 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.16. build/tmp/sysroots/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-tmp-deploy-ipk.html" title="5.2.15. build/tmp/deploy/ipk/"> | ||
| 10 | <link rel="next" href="structure-build-tmp-stamps.html" title="5.2.17. build/tmp/stamps/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.16. build/tmp/sysroots/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp-sysroots"></a>5.2.16. <code class="filename">build/tmp/sysroots/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains shared header files and libraries as well as other shared | ||
| 18 | data. | ||
| 19 | Packages that need to share output with other packages do so within this directory. | ||
| 20 | The directory is subdivided by architecture so multiple builds can run within | ||
| 21 | the one Build Directory. | ||
| 22 | </p> | ||
| 23 | </div></body> | ||
| 24 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-work.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-work.html new file mode 100644 index 0000000000..aa78c18b5d --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp-work.html | |||
| @@ -0,0 +1,52 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.20. build/tmp/work/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-tmp-pkgdata.html" title="5.2.19. build/tmp/pkgdata/"> | ||
| 10 | <link rel="next" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.20. build/tmp/work/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp-work"></a>5.2.20. <code class="filename">build/tmp/work/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains architecture-specific work sub-directories for packages built by BitBake. | ||
| 18 | All tasks execute from a work directory. | ||
| 19 | For example, the source for a particular package is unpacked, patched, configured and compiled all | ||
| 20 | within its own work directory. | ||
| 21 | Within the work directory, organization is based on the package group for which the source | ||
| 22 | is being compiled. | ||
| 23 | </p> | ||
| 24 | <p> | ||
| 25 | It is worth considering the structure of a typical work directory. | ||
| 26 | As an example, consider the <code class="filename">linux-yocto-kernel-3.0</code> | ||
| 27 | on the machine <code class="filename">qemux86</code> | ||
| 28 | built within the Yocto Project. | ||
| 29 | For this package, a work directory of | ||
| 30 | <code class="filename">tmp/work/qemux86-poky-linux/linux-yocto-3.0+git1+<.....></code>, | ||
| 31 | referred to as <code class="filename"><a class="link" href="ref-variables-glos.html#var-WORKDIR" title="WORKDIR">WORKDIR</a></code>, is created. | ||
| 32 | Within this directory, the source is unpacked to | ||
| 33 | <code class="filename">linux-qemux86-standard-build</code> and then patched by Quilt | ||
| 34 | (see the | ||
| 35 | "<a class="link" href="../dev-manual/using-a-quilt-workflow.html" target="_self">Modifying Package | ||
| 36 | Source Code with Quilt</a>" section in the Yocto Project Development Manual. | ||
| 37 | Within the <code class="filename">linux-qemux86-standard-build</code> directory, | ||
| 38 | standard Quilt directories <code class="filename">linux-3.0/patches</code> | ||
| 39 | and <code class="filename">linux-3.0/.pc</code> are created, | ||
| 40 | and standard Quilt commands can be used. | ||
| 41 | </p> | ||
| 42 | <p> | ||
| 43 | There are other directories generated within WORKDIR. | ||
| 44 | The most important directory is WORKDIR<code class="filename">/temp/</code>, which has log files for each | ||
| 45 | task (<code class="filename">log.do_*.pid</code>) and contains the scripts BitBake runs for | ||
| 46 | each task (<code class="filename">run.do_*.pid</code>). | ||
| 47 | The WORKDIR<code class="filename">/image/</code> directory is where "make | ||
| 48 | install" places its output that is then split into sub-packages | ||
| 49 | within WORKDIR<code class="filename">/packages-split/</code>. | ||
| 50 | </p> | ||
| 51 | </div></body> | ||
| 52 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp.html new file mode 100644 index 0000000000..216d255c78 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build-tmp.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2.7. build/tmp/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-build.html" title="5.2. The Build Directory - build/"> | ||
| 9 | <link rel="prev" href="structure-build-sstate-cache.html" title="5.2.6. build/sstate-cache/"> | ||
| 10 | <link rel="next" href="structure-build-tmp-buildstats.html" title="5.2.8. build/tmp/buildstats/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2.7. build/tmp/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-build-tmp"></a>5.2.7. <code class="filename">build/tmp/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory receives all the OpenEmbedded build system's output. | ||
| 18 | BitBake creates this directory if it does not exist. | ||
| 19 | As a last resort, to clean up a build and start it from scratch (other than the downloads), | ||
| 20 | you can remove everything in the <code class="filename">tmp</code> directory or get rid of the | ||
| 21 | directory completely. | ||
| 22 | If you do, you should also completely remove the <code class="filename">build/sstate-cache</code> | ||
| 23 | directory as well. | ||
| 24 | </p> | ||
| 25 | </div></body> | ||
| 26 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build.html new file mode 100644 index 0000000000..c3b9ae5054 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-build.html | |||
| @@ -0,0 +1,15 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.2. The Build Directory - build/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-structure.html" title="Chapter 5. Source Directory Structure"> | ||
| 9 | <link rel="prev" href="structure-basic-top-level.html" title="5.1.11. LICENSE, README, and README.hardware"> | ||
| 10 | <link rel="next" href="structure-build-pseudodone.html" title="5.2.1. build/pseudodone"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.2. The Build Directory - build/"><div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 13 | <a name="structure-build"></a>5.2. The Build Directory - <code class="filename">build/</code> | ||
| 14 | </h2></div></div></div></div></body> | ||
| 15 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-bitbake.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-bitbake.html new file mode 100644 index 0000000000..aca036d970 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-bitbake.html | |||
| @@ -0,0 +1,40 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.1.1. bitbake/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-core.html" title="5.1. Top level core components"> | ||
| 9 | <link rel="prev" href="structure-core.html" title="5.1. Top level core components"> | ||
| 10 | <link rel="next" href="structure-core-build.html" title="5.1.2. build/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.1.1. bitbake/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-core-bitbake"></a>5.1.1. <code class="filename">bitbake/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | The <a class="ulink" href="source-directory" target="_self">Source Directory</a> | ||
| 18 | includes a copy of BitBake for ease of use. | ||
| 19 | The copy usually matches the current stable BitBake release from the BitBake project. | ||
| 20 | BitBake, a metadata interpreter, reads the Yocto Project metadata and runs the tasks | ||
| 21 | defined by that data. | ||
| 22 | Failures are usually from the metadata and not from BitBake itself. | ||
| 23 | Consequently, most users do not need to worry about BitBake. | ||
| 24 | </p> | ||
| 25 | <p> | ||
| 26 | When you run the <code class="filename">bitbake</code> command, the wrapper script in | ||
| 27 | <code class="filename">scripts/</code> is executed to run the main BitBake executable, | ||
| 28 | which resides in the <code class="filename">bitbake/bin/</code> directory. | ||
| 29 | Sourcing the <a class="link" href="structure-core-script.html" title="5.1.10. oe-init-build-env">oe-init-build-env</a> | ||
| 30 | script places the <code class="filename">scripts</code> and <code class="filename">bitbake/bin</code> | ||
| 31 | directories (in that order) into the shell's <code class="filename">PATH</code> environment | ||
| 32 | variable. | ||
| 33 | </p> | ||
| 34 | <p> | ||
| 35 | For more information on BitBake, see the BitBake documentation | ||
| 36 | inculded in the <code class="filename">bitbake/doc/manual</code> directory of the | ||
| 37 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>. | ||
| 38 | </p> | ||
| 39 | </div></body> | ||
| 40 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-build.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-build.html new file mode 100644 index 0000000000..23f5549b5b --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-build.html | |||
| @@ -0,0 +1,33 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.1.2. build/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-core.html" title="5.1. Top level core components"> | ||
| 9 | <link rel="prev" href="structure-core-bitbake.html" title="5.1.1. bitbake/"> | ||
| 10 | <link rel="next" href="handbook.html" title="5.1.3. documentation"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.1.2. build/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-core-build"></a>5.1.2. <code class="filename">build/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains user configuration files and the output | ||
| 18 | generated by the OpenEmbedded build system in its standard configuration where | ||
| 19 | the source tree is combined with the output. | ||
| 20 | The <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a> | ||
| 21 | is created initially when you <code class="filename">source</code> | ||
| 22 | the OpenEmbedded build environment setup script <code class="filename">oe-init-build-env</code>. | ||
| 23 | </p> | ||
| 24 | <p> | ||
| 25 | It is also possible to place output and configuration | ||
| 26 | files in a directory separate from the | ||
| 27 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a> | ||
| 28 | by providing a directory name when you <code class="filename">source</code> | ||
| 29 | the setup script. | ||
| 30 | For information on separating output from your local Source Directory files, see <a class="link" href="structure-core-script.html" title="5.1.10. oe-init-build-env">oe-init-build-env</a>. | ||
| 31 | </p> | ||
| 32 | </div></body> | ||
| 33 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-meta-yocto-bsp.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-meta-yocto-bsp.html new file mode 100644 index 0000000000..29eff27053 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-meta-yocto-bsp.html | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.1.6. meta-yocto-bsp/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-core.html" title="5.1. Top level core components"> | ||
| 9 | <link rel="prev" href="structure-core-meta-yocto.html" title="5.1.5. meta-yocto/"> | ||
| 10 | <link rel="next" href="structure-meta-hob.html" title="5.1.7. meta-hob/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.1.6. meta-yocto-bsp/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-core-meta-yocto-bsp"></a>5.1.6. <code class="filename">meta-yocto-bsp/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains the Yocto Project reference | ||
| 18 | hardware BSPs. | ||
| 19 | </p> | ||
| 20 | </div></body> | ||
| 21 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-meta-yocto.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-meta-yocto.html new file mode 100644 index 0000000000..e9a8e8e56b --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-meta-yocto.html | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.1.5. meta-yocto/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-core.html" title="5.1. Top level core components"> | ||
| 9 | <link rel="prev" href="structure-core-meta.html" title="5.1.4. meta/"> | ||
| 10 | <link rel="next" href="structure-core-meta-yocto-bsp.html" title="5.1.6. meta-yocto-bsp/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.1.5. meta-yocto/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-core-meta-yocto"></a>5.1.5. <code class="filename">meta-yocto/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains the configuration for the Poky | ||
| 18 | reference distribution. | ||
| 19 | </p> | ||
| 20 | </div></body> | ||
| 21 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-meta.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-meta.html new file mode 100644 index 0000000000..9a7cee2c13 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-meta.html | |||
| @@ -0,0 +1,23 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.1.4. meta/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-core.html" title="5.1. Top level core components"> | ||
| 9 | <link rel="prev" href="handbook.html" title="5.1.3. documentation"> | ||
| 10 | <link rel="next" href="structure-core-meta-yocto.html" title="5.1.5. meta-yocto/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.1.4. meta/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-core-meta"></a>5.1.4. <code class="filename">meta/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains the OpenEmbedded Core metadata. | ||
| 18 | The directory holds recipes, common classes, and machine | ||
| 19 | configuration for emulated targets (qemux86, qemuarm, | ||
| 20 | and so on.) | ||
| 21 | </p> | ||
| 22 | </div></body> | ||
| 23 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-script.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-script.html new file mode 100644 index 0000000000..64266a9482 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-script.html | |||
| @@ -0,0 +1,53 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.1.10. oe-init-build-env</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-core.html" title="5.1. Top level core components"> | ||
| 9 | <link rel="prev" href="structure-core-scripts.html" title="5.1.9. scripts/"> | ||
| 10 | <link rel="next" href="structure-basic-top-level.html" title="5.1.11. LICENSE, README, and README.hardware"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.1.10. oe-init-build-env"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-core-script"></a>5.1.10. <code class="filename">oe-init-build-env</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This script sets up the OpenEmbedded build environment. | ||
| 18 | Running this script with the <code class="filename">source</code> command in | ||
| 19 | a shell makes changes to <code class="filename">PATH</code> and sets other core BitBake variables based on the | ||
| 20 | current working directory. | ||
| 21 | You need to run this script before running BitBake commands. | ||
| 22 | The script uses other scripts within the <code class="filename">scripts</code> directory to do | ||
| 23 | the bulk of the work. | ||
| 24 | </p> | ||
| 25 | <p> | ||
| 26 | By default, running this script without a Build Directory argument creates the | ||
| 27 | <code class="filename">build</code> directory. | ||
| 28 | If you provide a Build Directory argument when you <code class="filename">source</code> | ||
| 29 | the script, you direct OpenEmbedded build system to create a | ||
| 30 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a> of your choice. | ||
| 31 | For example, the following command creates a Build Directory named | ||
| 32 | <code class="filename">mybuilds</code> that is outside of the | ||
| 33 | <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>: | ||
| 34 | </p> | ||
| 35 | <pre class="literallayout"> | ||
| 36 | $ source oe-init-build-env ~/mybuilds | ||
| 37 | </pre> | ||
| 38 | <p> | ||
| 39 | </p> | ||
| 40 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 41 | <h3 class="title">Note</h3> | ||
| 42 | The OpenEmbedded build system does not support file or directory names that | ||
| 43 | contain spaces. | ||
| 44 | If you attempt to run the <code class="filename">oe-init-build-env</code> script | ||
| 45 | from a Source Directory that contains spaces in either the filenames | ||
| 46 | or directory names, the script returns an error indicating no such | ||
| 47 | file or directory. | ||
| 48 | Be sure to use a Source Directory free of names containing spaces. | ||
| 49 | </div> | ||
| 50 | <p> | ||
| 51 | </p> | ||
| 52 | </div></body> | ||
| 53 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-scripts.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-scripts.html new file mode 100644 index 0000000000..6bc3bed649 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core-scripts.html | |||
| @@ -0,0 +1,28 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.1.9. scripts/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-core.html" title="5.1. Top level core components"> | ||
| 9 | <link rel="prev" href="structure-meta-skeleton.html" title="5.1.8. meta-skeleton/"> | ||
| 10 | <link rel="next" href="structure-core-script.html" title="5.1.10. oe-init-build-env"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.1.9. scripts/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-core-scripts"></a>5.1.9. <code class="filename">scripts/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains various integration scripts that implement | ||
| 18 | extra functionality in the Yocto Project environment (e.g. QEMU scripts). | ||
| 19 | The <a class="link" href="structure-core-script.html" title="5.1.10. oe-init-build-env">oe-init-build-env</a> script appends this | ||
| 20 | directory to the shell's <code class="filename">PATH</code> environment variable. | ||
| 21 | </p> | ||
| 22 | <p> | ||
| 23 | The <code class="filename">scripts</code> directory has useful scripts that assist contributing | ||
| 24 | back to the Yocto Project, such as <code class="filename">create_pull_request</code> and | ||
| 25 | <code class="filename">send_pull_request</code>. | ||
| 26 | </p> | ||
| 27 | </div></body> | ||
| 28 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core.html new file mode 100644 index 0000000000..51b6994b08 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-core.html | |||
| @@ -0,0 +1,14 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.1. Top level core components</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-structure.html" title="Chapter 5. Source Directory Structure"> | ||
| 9 | <link rel="prev" href="ref-structure.html" title="Chapter 5. Source Directory Structure"> | ||
| 10 | <link rel="next" href="structure-core-bitbake.html" title="5.1.1. bitbake/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.1. Top level core components"><div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 13 | <a name="structure-core"></a>5.1. Top level core components</h2></div></div></div></div></body> | ||
| 14 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-classes.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-classes.html new file mode 100644 index 0000000000..34cc0ffe32 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-classes.html | |||
| @@ -0,0 +1,30 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.1. meta/classes/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 10 | <link rel="next" href="structure-meta-conf.html" title="5.3.2. meta/conf/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.1. meta/classes/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-classes"></a>5.3.1. <code class="filename">meta/classes/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains the <code class="filename">*.bbclass</code> files. | ||
| 18 | Class files are used to abstract common code so it can be reused by multiple | ||
| 19 | packages. | ||
| 20 | Every package inherits the <code class="filename">base.bbclass</code> file. | ||
| 21 | Examples of other important classes are <code class="filename">autotools.bbclass</code>, which | ||
| 22 | in theory allows any Autotool-enabled package to work with the Yocto Project with minimal effort. | ||
| 23 | Another example is <code class="filename">kernel.bbclass</code> that contains common code and functions | ||
| 24 | for working with the Linux kernel. | ||
| 25 | Functions like image generation or packaging also have their specific class files | ||
| 26 | such as <code class="filename">image.bbclass</code>, <code class="filename">rootfs_*.bbclass</code> and | ||
| 27 | <code class="filename">package*.bbclass</code>. | ||
| 28 | </p> | ||
| 29 | </div></body> | ||
| 30 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-conf-distro.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-conf-distro.html new file mode 100644 index 0000000000..b8b4fe0c01 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-conf-distro.html | |||
| @@ -0,0 +1,25 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.4. meta/conf/distro/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-conf-machine.html" title="5.3.3. meta/conf/machine/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-bsp.html" title="5.3.5. meta/recipes-bsp/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.4. meta/conf/distro/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-conf-distro"></a>5.3.4. <code class="filename">meta/conf/distro/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | Any distribution-specific configuration is controlled from this directory. | ||
| 18 | For the Yocto Project, the <code class="filename">defaultsetup.conf</code> is the main file here. | ||
| 19 | This directory includes the versions and the | ||
| 20 | <code class="filename">SRCDATE</code> definitions for applications that are configured here. | ||
| 21 | An example of an alternative configuration might be <code class="filename">poky-bleeding.conf</code>. | ||
| 22 | Although this file mainly inherits its configuration from Poky. | ||
| 23 | </p> | ||
| 24 | </div></body> | ||
| 25 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-conf-machine.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-conf-machine.html new file mode 100644 index 0000000000..80ccb8dedc --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-conf-machine.html | |||
| @@ -0,0 +1,25 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.3. meta/conf/machine/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-conf.html" title="5.3.2. meta/conf/"> | ||
| 10 | <link rel="next" href="structure-meta-conf-distro.html" title="5.3.4. meta/conf/distro/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.3. meta/conf/machine/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-conf-machine"></a>5.3.3. <code class="filename">meta/conf/machine/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains all the machine configuration files. | ||
| 18 | If you set <code class="filename">MACHINE="qemux86"</code>, | ||
| 19 | the OpenEmbedded build system looks for a <code class="filename">qemux86.conf</code> file in this | ||
| 20 | directory. | ||
| 21 | The <code class="filename">include</code> directory contains various data common to multiple machines. | ||
| 22 | If you want to add support for a new machine to the Yocto Project, look in this directory. | ||
| 23 | </p> | ||
| 24 | </div></body> | ||
| 25 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-conf.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-conf.html new file mode 100644 index 0000000000..da88f4b111 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-conf.html | |||
| @@ -0,0 +1,27 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.2. meta/conf/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-classes.html" title="5.3.1. meta/classes/"> | ||
| 10 | <link rel="next" href="structure-meta-conf-machine.html" title="5.3.3. meta/conf/machine/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.2. meta/conf/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-conf"></a>5.3.2. <code class="filename">meta/conf/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains the core set of configuration files that start from | ||
| 18 | <code class="filename">bitbake.conf</code> and from which all other configuration | ||
| 19 | files are included. | ||
| 20 | See the include statements at the end of the file and you will note that even | ||
| 21 | <code class="filename">local.conf</code> is loaded from there. | ||
| 22 | While <code class="filename">bitbake.conf</code> sets up the defaults, you can often override | ||
| 23 | these by using the (<code class="filename">local.conf</code>) file, machine file or | ||
| 24 | the distribution configuration file. | ||
| 25 | </p> | ||
| 26 | </div></body> | ||
| 27 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-hob.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-hob.html new file mode 100644 index 0000000000..a8fb22fc08 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-hob.html | |||
| @@ -0,0 +1,22 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.1.7. meta-hob/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-core.html" title="5.1. Top level core components"> | ||
| 9 | <link rel="prev" href="structure-core-meta-yocto-bsp.html" title="5.1.6. meta-yocto-bsp/"> | ||
| 10 | <link rel="next" href="structure-meta-skeleton.html" title="5.1.8. meta-skeleton/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.1.7. meta-hob/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-hob"></a>5.1.7. <code class="filename">meta-hob/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains template recipes used by the | ||
| 18 | <a class="ulink" href="http://www.yoctoproject.org/projects/hob" target="_self">Hob</a> | ||
| 19 | build UI. | ||
| 20 | </p> | ||
| 21 | </div></body> | ||
| 22 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-bsp.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-bsp.html new file mode 100644 index 0000000000..7adf2d392c --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-bsp.html | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.5. meta/recipes-bsp/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-conf-distro.html" title="5.3.4. meta/conf/distro/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-connectivity.html" title="5.3.6. meta/recipes-connectivity/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.5. meta/recipes-bsp/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-bsp"></a>5.3.5. <code class="filename">meta/recipes-bsp/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains anything linking to specific hardware or hardware | ||
| 18 | configuration information such as "u-boot" and "grub". | ||
| 19 | </p> | ||
| 20 | </div></body> | ||
| 21 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-connectivity.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-connectivity.html new file mode 100644 index 0000000000..112544e110 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-connectivity.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.6. meta/recipes-connectivity/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-bsp.html" title="5.3.5. meta/recipes-bsp/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-core.html" title="5.3.7. meta/recipes-core/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.6. meta/recipes-connectivity/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-connectivity"></a>5.3.6. <code class="filename">meta/recipes-connectivity/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains libraries and applications related to communication with other devices. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-core.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-core.html new file mode 100644 index 0000000000..bd0542eb92 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-core.html | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.7. meta/recipes-core/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-connectivity.html" title="5.3.6. meta/recipes-connectivity/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-devtools.html" title="5.3.8. meta/recipes-devtools/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.7. meta/recipes-core/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-core"></a>5.3.7. <code class="filename">meta/recipes-core/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains what is needed to build a basic working Linux image | ||
| 18 | including commonly used dependencies. | ||
| 19 | </p> | ||
| 20 | </div></body> | ||
| 21 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-devtools.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-devtools.html new file mode 100644 index 0000000000..25a38d9f01 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-devtools.html | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.8. meta/recipes-devtools/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-core.html" title="5.3.7. meta/recipes-core/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-extended.html" title="5.3.9. meta/recipes-extended/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.8. meta/recipes-devtools/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-devtools"></a>5.3.8. <code class="filename">meta/recipes-devtools/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains tools that are primarily used by the build system. | ||
| 18 | The tools, however, can also be used on targets. | ||
| 19 | </p> | ||
| 20 | </div></body> | ||
| 21 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-extended.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-extended.html new file mode 100644 index 0000000000..b5506ff651 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-extended.html | |||
| @@ -0,0 +1,23 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.9. meta/recipes-extended/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-devtools.html" title="5.3.8. meta/recipes-devtools/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-gnome.html" title="5.3.10. meta/recipes-gnome/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.9. meta/recipes-extended/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-extended"></a>5.3.9. <code class="filename">meta/recipes-extended/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains non-essential applications that add features compared to the | ||
| 18 | alternatives in core. | ||
| 19 | You might need this directory for full tool functionality or for Linux Standard Base (LSB) | ||
| 20 | compliance. | ||
| 21 | </p> | ||
| 22 | </div></body> | ||
| 23 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-gnome.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-gnome.html new file mode 100644 index 0000000000..769447f2ff --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-gnome.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.10. meta/recipes-gnome/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-extended.html" title="5.3.9. meta/recipes-extended/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-graphics.html" title="5.3.11. meta/recipes-graphics/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.10. meta/recipes-gnome/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-gnome"></a>5.3.10. <code class="filename">meta/recipes-gnome/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains all things related to the GTK+ application framework. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-graphics.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-graphics.html new file mode 100644 index 0000000000..7a0a3e4253 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-graphics.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.11. meta/recipes-graphics/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-gnome.html" title="5.3.10. meta/recipes-gnome/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-kernel.html" title="5.3.12. meta/recipes-kernel/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.11. meta/recipes-graphics/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-graphics"></a>5.3.11. <code class="filename">meta/recipes-graphics/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains X and other graphically related system libraries | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-kernel.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-kernel.html new file mode 100644 index 0000000000..1cb7a06f81 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-kernel.html | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.12. meta/recipes-kernel/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-graphics.html" title="5.3.11. meta/recipes-graphics/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-multimedia.html" title="5.3.13. meta/recipes-multimedia/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.12. meta/recipes-kernel/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-kernel"></a>5.3.12. <code class="filename">meta/recipes-kernel/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains the kernel and generic applications and libraries that | ||
| 18 | have strong kernel dependencies. | ||
| 19 | </p> | ||
| 20 | </div></body> | ||
| 21 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-multimedia.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-multimedia.html new file mode 100644 index 0000000000..08c9f3cda9 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-multimedia.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.13. meta/recipes-multimedia/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-kernel.html" title="5.3.12. meta/recipes-kernel/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-qt.html" title="5.3.14. meta/recipes-qt/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.13. meta/recipes-multimedia/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-multimedia"></a>5.3.13. <code class="filename">meta/recipes-multimedia/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains codecs and support utilities for audio, images and video. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-qt.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-qt.html new file mode 100644 index 0000000000..bb6eca2742 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-qt.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.14. meta/recipes-qt/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-multimedia.html" title="5.3.13. meta/recipes-multimedia/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-rt.html" title="5.3.15. meta/recipes-rt/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.14. meta/recipes-qt/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-qt"></a>5.3.14. <code class="filename">meta/recipes-qt/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains all things related to the Qt application framework. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-rt.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-rt.html new file mode 100644 index 0000000000..249e442891 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-rt.html | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.15. meta/recipes-rt/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-qt.html" title="5.3.14. meta/recipes-qt/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-sato.html" title="5.3.16. meta/recipes-sato/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.15. meta/recipes-rt/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-rt"></a>5.3.15. <code class="filename">meta/recipes-rt/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains package and image recipes for using and testing | ||
| 18 | the <code class="filename">PREEMPT_RT</code> kernel. | ||
| 19 | </p> | ||
| 20 | </div></body> | ||
| 21 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-sato.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-sato.html new file mode 100644 index 0000000000..d6a27ffb4f --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-sato.html | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.16. meta/recipes-sato/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-rt.html" title="5.3.15. meta/recipes-rt/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-support.html" title="5.3.17. meta/recipes-support/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.16. meta/recipes-sato/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-sato"></a>5.3.16. <code class="filename">meta/recipes-sato/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains the Sato demo/reference UI/UX and its associated applications | ||
| 18 | and configuration data. | ||
| 19 | </p> | ||
| 20 | </div></body> | ||
| 21 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-support.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-support.html new file mode 100644 index 0000000000..7e152acfa2 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-support.html | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.17. meta/recipes-support/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-sato.html" title="5.3.16. meta/recipes-sato/"> | ||
| 10 | <link rel="next" href="structure-meta-site.html" title="5.3.18. meta/site/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.17. meta/recipes-support/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-support"></a>5.3.17. <code class="filename">meta/recipes-support/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains recipes that used by other recipes, but that are not directly | ||
| 18 | included in images (i.e. dependencies of other recipes). | ||
| 19 | </p> | ||
| 20 | </div></body> | ||
| 21 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-txt.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-txt.html new file mode 100644 index 0000000000..42bb7a678d --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-recipes-txt.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.19. meta/recipes.txt</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-site.html" title="5.3.18. meta/site/"> | ||
| 10 | <link rel="next" href="ref-bitbake.html" title="Chapter 6. BitBake"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.19. meta/recipes.txt"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-recipes-txt"></a>5.3.19. <code class="filename">meta/recipes.txt</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This file is a description of the contents of <code class="filename">recipes-*</code>. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-site.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-site.html new file mode 100644 index 0000000000..567eec8221 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-site.html | |||
| @@ -0,0 +1,23 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3.18. meta/site/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-meta.html" title="5.3. The Metadata - meta/"> | ||
| 9 | <link rel="prev" href="structure-meta-recipes-support.html" title="5.3.17. meta/recipes-support/"> | ||
| 10 | <link rel="next" href="structure-meta-recipes-txt.html" title="5.3.19. meta/recipes.txt"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3.18. meta/site/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-site"></a>5.3.18. <code class="filename">meta/site/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains a list of cached results for various architectures. | ||
| 18 | Because certain "autoconf" test results cannot be determined when cross-compiling due to | ||
| 19 | the tests not able to run on a live system, the information in this directory is | ||
| 20 | passed to "autoconf" for the various architectures. | ||
| 21 | </p> | ||
| 22 | </div></body> | ||
| 23 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-skeleton.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-skeleton.html new file mode 100644 index 0000000000..b67bb60e48 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta-skeleton.html | |||
| @@ -0,0 +1,20 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.1.8. meta-skeleton/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="structure-core.html" title="5.1. Top level core components"> | ||
| 9 | <link rel="prev" href="structure-meta-hob.html" title="5.1.7. meta-hob/"> | ||
| 10 | <link rel="next" href="structure-core-scripts.html" title="5.1.9. scripts/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.1.8. meta-skeleton/"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="structure-meta-skeleton"></a>5.1.8. <code class="filename">meta-skeleton/</code> | ||
| 15 | </h3></div></div></div> | ||
| 16 | <p> | ||
| 17 | This directory contains template recipes for BSP and kernel development. | ||
| 18 | </p> | ||
| 19 | </div></body> | ||
| 20 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta.html new file mode 100644 index 0000000000..7f132b54fb --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/structure-meta.html | |||
| @@ -0,0 +1,21 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>5.3. The Metadata - meta/</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="ref-structure.html" title="Chapter 5. Source Directory Structure"> | ||
| 9 | <link rel="prev" href="structure-build-tmp-work.html" title="5.2.20. build/tmp/work/"> | ||
| 10 | <link rel="next" href="structure-meta-classes.html" title="5.3.1. meta/classes/"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="5.3. The Metadata - meta/"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="structure-meta"></a>5.3. The Metadata - <code class="filename">meta/</code> | ||
| 15 | </h2></div></div></div> | ||
| 16 | <p> | ||
| 17 | As mentioned previously, metadata is the core of the Yocto Project. | ||
| 18 | Metadata has several important subdivisions: | ||
| 19 | </p> | ||
| 20 | </div></body> | ||
| 21 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/support.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/support.html new file mode 100644 index 0000000000..4e0a1efb0f --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/support.html | |||
| @@ -0,0 +1,34 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.3.1. Support</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="x32.html" title="3.3. x32"> | ||
| 9 | <link rel="prev" href="x32.html" title="3.3. x32"> | ||
| 10 | <link rel="next" href="future-development-and-limitations.html" title="3.3.2. Future Development and Limitations"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.3.1. Support"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="support"></a>3.3.1. Support</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | While the x32 psABI specifications are not fully finalized, this Yocto Project | ||
| 17 | release supports current development specifications of x32 psABI. | ||
| 18 | As of this release of the Yocto Project, x32 psABI support exists as follows: | ||
| 19 | </p> | ||
| 20 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 21 | <li class="listitem"><p>You can create packages and images in x32 psABI format on x86_64 architecture targets. | ||
| 22 | </p></li> | ||
| 23 | <li class="listitem"><p>You can use the x32 psABI support through the <code class="filename">meta-x32</code> | ||
| 24 | layer on top of the OE-core/Yocto layer.</p></li> | ||
| 25 | <li class="listitem"><p>The toolchain from the <code class="filename">experimental/meta-x32</code> layer | ||
| 26 | is used for building x32 psABI program binaries.</p></li> | ||
| 27 | <li class="listitem"><p>You can successfully build many recipes with the x32 toolchain.</p></li> | ||
| 28 | <li class="listitem"><p>You can create and boot <code class="filename">core-image-minimal</code> and | ||
| 29 | <code class="filename">core-image-sato</code> images.</p></li> | ||
| 30 | </ul></div> | ||
| 31 | <p> | ||
| 32 | </p> | ||
| 33 | </div></body> | ||
| 34 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/technical-details.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/technical-details.html new file mode 100644 index 0000000000..1a54121c49 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/technical-details.html | |||
| @@ -0,0 +1,50 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 3. Technical Details</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="examining-build-history-information.html" title="2.4.2.4. Examining Build History Information"> | ||
| 10 | <link rel="next" href="usingpoky-components.html" title="3.1. Yocto Project Components"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 3. Technical Details"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="technical-details"></a>Chapter 3. Technical Details</h2></div></div></div> | ||
| 15 | <div class="toc"> | ||
| 16 | <p><b>Table of Contents</b></p> | ||
| 17 | <dl> | ||
| 18 | <dt><span class="section"><a href="usingpoky-components.html">3.1. Yocto Project Components</a></span></dt> | ||
| 19 | <dd><dl> | ||
| 20 | <dt><span class="section"><a href="usingpoky-components-bitbake.html">3.1.1. BitBake</a></span></dt> | ||
| 21 | <dt><span class="section"><a href="usingpoky-components-metadata.html">3.1.2. Metadata (Recipes)</a></span></dt> | ||
| 22 | <dt><span class="section"><a href="usingpoky-components-classes.html">3.1.3. Classes</a></span></dt> | ||
| 23 | <dt><span class="section"><a href="usingpoky-components-configuration.html">3.1.4. Configuration</a></span></dt> | ||
| 24 | </dl></dd> | ||
| 25 | <dt><span class="section"><a href="shared-state-cache.html">3.2. Shared State Cache</a></span></dt> | ||
| 26 | <dd><dl> | ||
| 27 | <dt><span class="section"><a href="overall-architecture.html">3.2.1. Overall Architecture</a></span></dt> | ||
| 28 | <dt><span class="section"><a href="checksums.html">3.2.2. Checksums (Signatures)</a></span></dt> | ||
| 29 | <dt><span class="section"><a href="shared-state.html">3.2.3. Shared State</a></span></dt> | ||
| 30 | <dt><span class="section"><a href="tips-and-tricks.html">3.2.4. Tips and Tricks</a></span></dt> | ||
| 31 | </dl></dd> | ||
| 32 | <dt><span class="section"><a href="x32.html">3.3. x32</a></span></dt> | ||
| 33 | <dd><dl> | ||
| 34 | <dt><span class="section"><a href="support.html">3.3.1. Support</a></span></dt> | ||
| 35 | <dt><span class="section"><a href="future-development-and-limitations.html">3.3.2. Future Development and Limitations</a></span></dt> | ||
| 36 | <dt><span class="section"><a href="using-x32-right-now.html">3.3.3. Using x32 Right Now</a></span></dt> | ||
| 37 | </dl></dd> | ||
| 38 | <dt><span class="section"><a href="licenses.html">3.4. Licenses</a></span></dt> | ||
| 39 | <dd><dl> | ||
| 40 | <dt><span class="section"><a href="usingpoky-configuring-LIC_FILES_CHKSUM.html">3.4.1. Tracking License Changes</a></span></dt> | ||
| 41 | <dt><span class="section"><a href="enabling-commercially-licensed-recipes.html">3.4.2. Enabling Commercially Licensed Recipes</a></span></dt> | ||
| 42 | </dl></dd> | ||
| 43 | </dl> | ||
| 44 | </div> | ||
| 45 | <p> | ||
| 46 | This chapter provides technical details for various parts of the Yocto Project. | ||
| 47 | Currently, topics include Yocto Project components and shared state (sstate) cache. | ||
| 48 | </p> | ||
| 49 | </div></body> | ||
| 50 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/tips-and-tricks.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/tips-and-tricks.html new file mode 100644 index 0000000000..78773b954a --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/tips-and-tricks.html | |||
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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.2.4. Tips and Tricks</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="shared-state-cache.html" title="3.2. Shared State Cache"> | ||
| 9 | <link rel="prev" href="shared-state.html" title="3.2.3. Shared State"> | ||
| 10 | <link rel="next" href="debugging.html" title="3.2.4.1. Debugging"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.2.4. Tips and Tricks"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="tips-and-tricks"></a>3.2.4. Tips and Tricks</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | The code in the build system that supports incremental builds is not | ||
| 17 | simple code. | ||
| 18 | This section presents some tips and tricks that help you work around | ||
| 19 | issues related to shared state code. | ||
| 20 | </p> | ||
| 21 | </div></body> | ||
| 22 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/ubuntu-packages.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/ubuntu-packages.html new file mode 100644 index 0000000000..63c0118692 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/ubuntu-packages.html | |||
| @@ -0,0 +1,60 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>1.3.2.1. Ubuntu</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="required-packages-for-the-host-development-system.html" title="1.3.2. Required Packages for the Host Development System"> | ||
| 9 | <link rel="prev" href="required-packages-for-the-host-development-system.html" title="1.3.2. Required Packages for the Host Development System"> | ||
| 10 | <link rel="next" href="fedora-packages.html" title="1.3.2.2. Fedora Packages"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="1.3.2.1. Ubuntu"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="ubuntu-packages"></a>1.3.2.1. Ubuntu</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | The following list shows the required packages by function | ||
| 17 | given a supported Ubuntu Linux distribution: | ||
| 18 | </p> | ||
| 19 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 20 | <li class="listitem"> | ||
| 21 | <p><span class="emphasis"><em>Essentials:</em></span> | ||
| 22 | Packages needed to build an image on a headless | ||
| 23 | system: | ||
| 24 | </p> | ||
| 25 | <pre class="literallayout"> | ||
| 26 | $ sudo apt-get install gawk wget git-core diffstat unzip texinfo \ | ||
| 27 | build-essential chrpath | ||
| 28 | </pre> | ||
| 29 | </li> | ||
| 30 | <li class="listitem"> | ||
| 31 | <p><span class="emphasis"><em>Graphical Extras:</em></span> | ||
| 32 | Packages recommended if the host system has graphics support: | ||
| 33 | </p> | ||
| 34 | <pre class="literallayout"> | ||
| 35 | $ sudo apt-get install libsdl1.2-dev xterm | ||
| 36 | </pre> | ||
| 37 | </li> | ||
| 38 | <li class="listitem"> | ||
| 39 | <p><span class="emphasis"><em>Documentation:</em></span> | ||
| 40 | Packages needed if you are going to build out the | ||
| 41 | Yocto Project documentation manuals: | ||
| 42 | </p> | ||
| 43 | <pre class="literallayout"> | ||
| 44 | $ sudo apt-get install make xsltproc docbook-utils fop | ||
| 45 | </pre> | ||
| 46 | </li> | ||
| 47 | <li class="listitem"> | ||
| 48 | <p><span class="emphasis"><em>ADT Installer Extras:</em></span> | ||
| 49 | Packages needed if you are going to be using the | ||
| 50 | <a class="link" href="../adt-manual/using-the-adt-installer.html" target="_self">Application Development Toolkit (ADT) Installer</a>: | ||
| 51 | </p> | ||
| 52 | <pre class="literallayout"> | ||
| 53 | $ sudo apt-get install autoconf automake libtool libglib2.0-dev | ||
| 54 | </pre> | ||
| 55 | </li> | ||
| 56 | </ul></div> | ||
| 57 | <p> | ||
| 58 | </p> | ||
| 59 | </div></body> | ||
| 60 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/understanding-what-the-build-history-contains.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/understanding-what-the-build-history-contains.html new file mode 100644 index 0000000000..cdaa962f57 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/understanding-what-the-build-history-contains.html | |||
| @@ -0,0 +1,25 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.4.2. Understanding What the Build History Contains</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="maintaining-build-output-quality.html" title="2.4. Maintaining Build Output Quality"> | ||
| 9 | <link rel="prev" href="enabling-and-disabling-build-history.html" title="2.4.1. Enabling and Disabling Build History"> | ||
| 10 | <link rel="next" href="build-history-package-information.html" title="2.4.2.1. Build History Package Information"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.4.2. Understanding What the Build History Contains"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="understanding-what-the-build-history-contains"></a>2.4.2. Understanding What the Build History Contains</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | Build history information is kept in | ||
| 17 | <a class="link" href="ref-variables-glos.html#var-TMPDIR" title="TMPDIR"><code class="filename">$TMPDIR</code></a><code class="filename">/buildhistory</code> | ||
| 18 | in the Build Directory. | ||
| 19 | The following is an example abbreviated listing: | ||
| 20 | </p> | ||
| 21 | <table border="0" summary="manufactured viewport for HTML img" cellspacing="0" cellpadding="0" width="540"><tr style="height: 360px"><td align="center"><img src="figures/buildhistory.png" align="middle" width="540"></td></tr></table> | ||
| 22 | <p> | ||
| 23 | </p> | ||
| 24 | </div></body> | ||
| 25 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/using-build-history-to-gather-image-information-only.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/using-build-history-to-gather-image-information-only.html new file mode 100644 index 0000000000..26c2a4d080 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/using-build-history-to-gather-image-information-only.html | |||
| @@ -0,0 +1,34 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.4.2.3. Using Build History to Gather Image Information Only</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="understanding-what-the-build-history-contains.html" title="2.4.2. Understanding What the Build History Contains"> | ||
| 9 | <link rel="prev" href="build-history-image-information.html" title="2.4.2.2. Build History Image Information"> | ||
| 10 | <link rel="next" href="examining-build-history-information.html" title="2.4.2.4. Examining Build History Information"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.4.2.3. Using Build History to Gather Image Information Only"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="using-build-history-to-gather-image-information-only"></a>2.4.2.3. Using Build History to Gather Image Information Only</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | As you can see, build history produces image information, | ||
| 17 | including dependency graphs, so you can see why something | ||
| 18 | was pulled into the image. | ||
| 19 | If you are just interested in this information and not | ||
| 20 | interested in collecting history or any package information, | ||
| 21 | you can enable writing only image information without | ||
| 22 | any history by adding the following | ||
| 23 | to your <code class="filename">conf/local.conf</code> file found in the | ||
| 24 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>: | ||
| 25 | </p> | ||
| 26 | <pre class="literallayout"> | ||
| 27 | INHERIT += "buildhistory" | ||
| 28 | BUILDHISTORY_COMMIT = "0" | ||
| 29 | BUILDHISTORY_FEATURES = "image" | ||
| 30 | </pre> | ||
| 31 | <p> | ||
| 32 | </p> | ||
| 33 | </div></body> | ||
| 34 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/using-x32-right-now.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/using-x32-right-now.html new file mode 100644 index 0000000000..614b31ddaa --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/using-x32-right-now.html | |||
| @@ -0,0 +1,70 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.3.3. Using x32 Right Now</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="x32.html" title="3.3. x32"> | ||
| 9 | <link rel="prev" href="future-development-and-limitations.html" title="3.3.2. Future Development and Limitations"> | ||
| 10 | <link rel="next" href="licenses.html" title="3.4. Licenses"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.3.3. Using x32 Right Now"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="using-x32-right-now"></a>3.3.3. Using x32 Right Now</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | Despite the fact the x32 psABI support is in development state for this release of the | ||
| 17 | Yocto Project, you can follow these steps to use the x32 spABI: | ||
| 18 | </p> | ||
| 19 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 20 | <li class="listitem"><p>Add the <code class="filename">experimental/meta-x32</code> layer to your local | ||
| 21 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>. | ||
| 22 | You can find the <code class="filename">experimental/meta-x32</code> source repository at | ||
| 23 | <a class="ulink" href="http://git.yoctoproject.org" target="_self">http://git.yoctoproject.org</a>.</p></li> | ||
| 24 | <li class="listitem"> | ||
| 25 | <p>Edit your <code class="filename">conf/bblayers.conf</code> file so that it includes | ||
| 26 | the <code class="filename">meta-x32</code>. | ||
| 27 | Here is an example: | ||
| 28 | </p> | ||
| 29 | <pre class="literallayout"> | ||
| 30 | BBLAYERS ?= " \ | ||
| 31 | /home/nitin/prj/poky.git/meta \ | ||
| 32 | /home/nitin/prj/poky.git/meta-yocto \ | ||
| 33 | /home/nitin/prj/poky.git/meta-yocto-bsp \ | ||
| 34 | /home/nitin/prj/meta-x32.git \ | ||
| 35 | " | ||
| 36 | </pre> | ||
| 37 | </li> | ||
| 38 | <li class="listitem"> | ||
| 39 | <p>Enable the x32 psABI tuning file for <code class="filename">x86_64</code> | ||
| 40 | machines by editing the <code class="filename">conf/local.conf</code> like this: | ||
| 41 | </p> | ||
| 42 | <pre class="literallayout"> | ||
| 43 | MACHINE = "qemux86-64" | ||
| 44 | DEFAULTTUNE = "x86-64-x32" | ||
| 45 | baselib = "${@d.getVar('BASE_LIB_tune-' + (d.getVar('DEFAULTTUNE', True) \ | ||
| 46 | or 'INVALID'), True) or 'lib'}" | ||
| 47 | #MACHINE = "atom-pc" | ||
| 48 | #DEFAULTTUNE = "core2-64-x32" | ||
| 49 | </pre> | ||
| 50 | </li> | ||
| 51 | <li class="listitem"> | ||
| 52 | <p>As usual, use BitBake to build an image that supports the x32 psABI. | ||
| 53 | Here is an example: | ||
| 54 | </p> | ||
| 55 | <pre class="literallayout"> | ||
| 56 | $ bitake core-image-sato | ||
| 57 | </pre> | ||
| 58 | </li> | ||
| 59 | <li class="listitem"> | ||
| 60 | <p>As usual, run your image using QEMU: | ||
| 61 | </p> | ||
| 62 | <pre class="literallayout"> | ||
| 63 | $ runqemu qemux86-64 core-image-sato | ||
| 64 | </pre> | ||
| 65 | </li> | ||
| 66 | </ul></div> | ||
| 67 | <p> | ||
| 68 | </p> | ||
| 69 | </div></body> | ||
| 70 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-LIC_FILES_CHKSUM-explanation-of-syntax.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-LIC_FILES_CHKSUM-explanation-of-syntax.html new file mode 100644 index 0000000000..e702578a24 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-LIC_FILES_CHKSUM-explanation-of-syntax.html | |||
| @@ -0,0 +1,58 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.4.1.2. Explanation of Syntax</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-configuring-LIC_FILES_CHKSUM.html" title="3.4.1. Tracking License Changes"> | ||
| 9 | <link rel="prev" href="usingpoky-specifying-LIC_FILES_CHKSUM.html" title="3.4.1.1. Specifying the LIC_FILES_CHKSUM Variable"> | ||
| 10 | <link rel="next" href="enabling-commercially-licensed-recipes.html" title="3.4.2. Enabling Commercially Licensed Recipes"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.4.1.2. Explanation of Syntax"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="usingpoky-LIC_FILES_CHKSUM-explanation-of-syntax"></a>3.4.1.2. Explanation of Syntax</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | As mentioned in the previous section, the | ||
| 17 | <code class="filename">LIC_FILES_CHKSUM</code> variable lists all the | ||
| 18 | important files that contain the license text for the source code. | ||
| 19 | It is possible to specify a checksum for an entire file, or a specific section of a | ||
| 20 | file (specified by beginning and ending line numbers with the "beginline" and "endline" | ||
| 21 | parameters, respectively). | ||
| 22 | The latter is useful for source files with a license notice header, | ||
| 23 | README documents, and so forth. | ||
| 24 | If you do not use the "beginline" parameter, then it is assumed that the text begins on the | ||
| 25 | first line of the file. | ||
| 26 | Similarly, if you do not use the "endline" parameter, it is assumed that the license text | ||
| 27 | ends with the last line of the file. | ||
| 28 | </p> | ||
| 29 | <p> | ||
| 30 | The "md5" parameter stores the md5 checksum of the license text. | ||
| 31 | If the license text changes in any way as compared to this parameter | ||
| 32 | then a mismatch occurs. | ||
| 33 | This mismatch triggers a build failure and notifies the developer. | ||
| 34 | Notification allows the developer to review and address the license text changes. | ||
| 35 | Also note that if a mismatch occurs during the build, the correct md5 | ||
| 36 | checksum is placed in the build log and can be easily copied to the recipe. | ||
| 37 | </p> | ||
| 38 | <p> | ||
| 39 | There is no limit to how many files you can specify using the | ||
| 40 | <code class="filename">LIC_FILES_CHKSUM</code> variable. | ||
| 41 | Generally, however, every project requires a few specifications for license tracking. | ||
| 42 | Many projects have a "COPYING" file that stores the license information for all the source | ||
| 43 | code files. | ||
| 44 | This practice allows you to just track the "COPYING" file as long as it is kept up to date. | ||
| 45 | </p> | ||
| 46 | <div class="tip" title="Tip" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 47 | <h3 class="title">Tip</h3> | ||
| 48 | If you specify an empty or invalid "md5" parameter, BitBake returns an md5 mis-match | ||
| 49 | error and displays the correct "md5" parameter value during the build. | ||
| 50 | The correct parameter is also captured in the build log. | ||
| 51 | </div> | ||
| 52 | <div class="tip" title="Tip" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 53 | <h3 class="title">Tip</h3> | ||
| 54 | If the whole file contains only license text, you do not need to use the "beginline" and | ||
| 55 | "endline" parameters. | ||
| 56 | </div> | ||
| 57 | </div></body> | ||
| 58 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-build.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-build.html new file mode 100644 index 0000000000..c1fa0e6c00 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-build.html | |||
| @@ -0,0 +1,24 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.1. Running a Build</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky.html" title="Chapter 2. Using the Yocto Project"> | ||
| 9 | <link rel="prev" href="usingpoky.html" title="Chapter 2. Using the Yocto Project"> | ||
| 10 | <link rel="next" href="build-overview.html" title="2.1.1. Build Overview"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.1. Running a Build"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="usingpoky-build"></a>2.1. Running a Build</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | This section provides a summary of the build process and provides information | ||
| 17 | for less obvious aspects of the build process. | ||
| 18 | For general information on how to build an image using the OpenEmbedded build | ||
| 19 | system, see the | ||
| 20 | "<a class="link" href="../yocto-project-qs/building-image.html" target="_self">Building an Image</a>" | ||
| 21 | section of the Yocto Project Quick Start. | ||
| 22 | </p> | ||
| 23 | </div></body> | ||
| 24 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components-bitbake.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components-bitbake.html new file mode 100644 index 0000000000..184ffdbd2c --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components-bitbake.html | |||
| @@ -0,0 +1,66 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.1.1. BitBake</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-components.html" title="3.1. Yocto Project Components"> | ||
| 9 | <link rel="prev" href="usingpoky-components.html" title="3.1. Yocto Project Components"> | ||
| 10 | <link rel="next" href="usingpoky-components-metadata.html" title="3.1.2. Metadata (Recipes)"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.1.1. BitBake"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="usingpoky-components-bitbake"></a>3.1.1. BitBake</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | BitBake is the tool at the heart of the OpenEmbedded build system and is responsible | ||
| 17 | for parsing the metadata, generating a list of tasks from it, | ||
| 18 | and then executing those tasks. | ||
| 19 | To see a list of the options BitBake supports, use the following help command: | ||
| 20 | </p> | ||
| 21 | <pre class="literallayout"> | ||
| 22 | $ bitbake --help | ||
| 23 | </pre> | ||
| 24 | <p> | ||
| 25 | </p> | ||
| 26 | <p> | ||
| 27 | The most common usage for BitBake is <code class="filename">bitbake <packagename></code>, where | ||
| 28 | <code class="filename">packagename</code> is the name of the package you want to build | ||
| 29 | (referred to as the "target" in this manual). | ||
| 30 | The target often equates to the first part of a <code class="filename">.bb</code> filename. | ||
| 31 | So, to run the <code class="filename">matchbox-desktop_1.2.3.bb</code> file, you | ||
| 32 | might type the following: | ||
| 33 | </p> | ||
| 34 | <pre class="literallayout"> | ||
| 35 | $ bitbake matchbox-desktop | ||
| 36 | </pre> | ||
| 37 | <p> | ||
| 38 | Several different versions of <code class="filename">matchbox-desktop</code> might exist. | ||
| 39 | BitBake chooses the one selected by the distribution configuration. | ||
| 40 | You can get more details about how BitBake chooses between different | ||
| 41 | target versions and providers in the | ||
| 42 | "<a class="link" href="ref-bitbake-providers.html" title="6.2. Preferences and Providers">Preferences and Providers</a>" section. | ||
| 43 | </p> | ||
| 44 | <p> | ||
| 45 | BitBake also tries to execute any dependent tasks first. | ||
| 46 | So for example, before building <code class="filename">matchbox-desktop</code>, BitBake | ||
| 47 | would build a cross compiler and <code class="filename">eglibc</code> if they had not already | ||
| 48 | been built. | ||
| 49 | </p> | ||
| 50 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 51 | <h3 class="title">Note</h3>This release of the Yocto Project does not support the <code class="filename">glibc</code> | ||
| 52 | GNU version of the Unix standard C library. By default, the OpenEmbedded build system | ||
| 53 | builds with <code class="filename">eglibc</code>.</div> | ||
| 54 | <p> | ||
| 55 | </p> | ||
| 56 | <p> | ||
| 57 | A useful BitBake option to consider is the <code class="filename">-k</code> or | ||
| 58 | <code class="filename">--continue</code> option. | ||
| 59 | This option instructs BitBake to try and continue processing the job as much | ||
| 60 | as possible even after encountering an error. | ||
| 61 | When an error occurs, the target that | ||
| 62 | failed and those that depend on it cannot be remade. | ||
| 63 | However, when you use this option other dependencies can still be processed. | ||
| 64 | </p> | ||
| 65 | </div></body> | ||
| 66 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components-classes.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components-classes.html new file mode 100644 index 0000000000..92427061ea --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components-classes.html | |||
| @@ -0,0 +1,24 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.1.3. Classes</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-components.html" title="3.1. Yocto Project Components"> | ||
| 9 | <link rel="prev" href="usingpoky-components-metadata.html" title="3.1.2. Metadata (Recipes)"> | ||
| 10 | <link rel="next" href="usingpoky-components-configuration.html" title="3.1.4. Configuration"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.1.3. Classes"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="usingpoky-components-classes"></a>3.1.3. Classes</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | Class files (<code class="filename">.bbclass</code>) contain information that is useful to share | ||
| 17 | between metadata files. | ||
| 18 | An example is the Autotools class, which contains | ||
| 19 | common settings for any application that Autotools uses. | ||
| 20 | The "<a class="link" href="ref-classes.html" title="Chapter 7. Classes">Classes</a>" chapter provides details | ||
| 21 | about common classes and how to use them. | ||
| 22 | </p> | ||
| 23 | </div></body> | ||
| 24 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components-configuration.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components-configuration.html new file mode 100644 index 0000000000..49e4e14649 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components-configuration.html | |||
| @@ -0,0 +1,24 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.1.4. Configuration</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-components.html" title="3.1. Yocto Project Components"> | ||
| 9 | <link rel="prev" href="usingpoky-components-classes.html" title="3.1.3. Classes"> | ||
| 10 | <link rel="next" href="shared-state-cache.html" title="3.2. Shared State Cache"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.1.4. Configuration"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="usingpoky-components-configuration"></a>3.1.4. Configuration</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | The configuration files (<code class="filename">.conf</code>) define various configuration variables | ||
| 17 | that govern the OpenEmbedded build process. | ||
| 18 | These files fall into several areas that define machine configuration options, | ||
| 19 | distribution configuration options, compiler tuning options, general common configuration | ||
| 20 | options and user configuration options (<code class="filename">local.conf</code>, which is found | ||
| 21 | in the <a class="ulink" href="build-directory" target="_self">Build Directory</a>). | ||
| 22 | </p> | ||
| 23 | </div></body> | ||
| 24 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components-metadata.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components-metadata.html new file mode 100644 index 0000000000..4f73445d8f --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components-metadata.html | |||
| @@ -0,0 +1,29 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.1.2. Metadata (Recipes)</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-components.html" title="3.1. Yocto Project Components"> | ||
| 9 | <link rel="prev" href="usingpoky-components-bitbake.html" title="3.1.1. BitBake"> | ||
| 10 | <link rel="next" href="usingpoky-components-classes.html" title="3.1.3. Classes"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.1.2. Metadata (Recipes)"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="usingpoky-components-metadata"></a>3.1.2. Metadata (Recipes)</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | The <code class="filename">.bb</code> files are usually referred to as "recipes." | ||
| 17 | In general, a recipe contains information about a single piece of software. | ||
| 18 | The information includes the location from which to download the source patches | ||
| 19 | (if any are needed), which special configuration options to apply, | ||
| 20 | how to compile the source files, and how to package the compiled output. | ||
| 21 | </p> | ||
| 22 | <p> | ||
| 23 | The term "package" can also be used to describe recipes. | ||
| 24 | However, since the same word is used for the packaged output from the OpenEmbedded | ||
| 25 | build system (i.e. <code class="filename">.ipk</code> or <code class="filename">.deb</code> files), | ||
| 26 | this document avoids using the term "package" when referring to recipes. | ||
| 27 | </p> | ||
| 28 | </div></body> | ||
| 29 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components.html new file mode 100644 index 0000000000..ccd3ae5fbd --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-components.html | |||
| @@ -0,0 +1,52 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.1. Yocto Project Components</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="technical-details.html" title="Chapter 3. Technical Details"> | ||
| 9 | <link rel="prev" href="technical-details.html" title="Chapter 3. Technical Details"> | ||
| 10 | <link rel="next" href="usingpoky-components-bitbake.html" title="3.1.1. BitBake"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.1. Yocto Project Components"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="usingpoky-components"></a>3.1. Yocto Project Components</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | The BitBake task executor together with various types of configuration files form the | ||
| 17 | OpenEmbedded Core. | ||
| 18 | This section overviews the BitBake task executor and the | ||
| 19 | configuration files by describing what they are used for and how they interact. | ||
| 20 | </p> | ||
| 21 | <p> | ||
| 22 | BitBake handles the parsing and execution of the data files. | ||
| 23 | The data itself is of various types: | ||
| 24 | </p> | ||
| 25 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 26 | <li class="listitem"><p><span class="emphasis"><em>Recipes:</em></span> Provides details about particular | ||
| 27 | pieces of software</p></li> | ||
| 28 | <li class="listitem"><p><span class="emphasis"><em>Class Data:</em></span> An abstraction of common build | ||
| 29 | information (e.g. how to build a Linux kernel).</p></li> | ||
| 30 | <li class="listitem"><p><span class="emphasis"><em>Configuration Data:</em></span> Defines machine-specific settings, | ||
| 31 | policy decisions, etc. | ||
| 32 | Configuration data acts as the glue to bind everything together.</p></li> | ||
| 33 | </ul></div> | ||
| 34 | <p> | ||
| 35 | For more information on data, see the | ||
| 36 | "<a class="link" href="../dev-manual/yocto-project-terms.html" target="_self">Yocto Project Terms</a>" | ||
| 37 | section in the Yocto Project Development Manual. | ||
| 38 | </p> | ||
| 39 | <p> | ||
| 40 | BitBake knows how to combine multiple data sources together and refers to each data source | ||
| 41 | as a layer. | ||
| 42 | For information on layers, see the | ||
| 43 | "<a class="link" href="../dev-manual/understanding-and-creating-layers.html" target="_self">Understanding and | ||
| 44 | Creating Layers</a>" section of the Yocto Project Development Manual. | ||
| 45 | </p> | ||
| 46 | <p> | ||
| 47 | Following are some brief details on these core components. | ||
| 48 | For more detailed information on these components see the | ||
| 49 | "<a class="link" href="ref-structure.html" title="Chapter 5. Source Directory Structure">Directory Structure</a>" chapter. | ||
| 50 | </p> | ||
| 51 | </div></body> | ||
| 52 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-configuring-LIC_FILES_CHKSUM.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-configuring-LIC_FILES_CHKSUM.html new file mode 100644 index 0000000000..ffcfd24e15 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-configuring-LIC_FILES_CHKSUM.html | |||
| @@ -0,0 +1,23 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.4.1. Tracking License Changes</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="licenses.html" title="3.4. Licenses"> | ||
| 9 | <link rel="prev" href="licenses.html" title="3.4. Licenses"> | ||
| 10 | <link rel="next" href="usingpoky-specifying-LIC_FILES_CHKSUM.html" title="3.4.1.1. Specifying the LIC_FILES_CHKSUM Variable"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.4.1. Tracking License Changes"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="usingpoky-configuring-LIC_FILES_CHKSUM"></a>3.4.1. Tracking License Changes</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | The license of an upstream project might change in the future. | ||
| 17 | In order to prevent these changes going unnoticed, the | ||
| 18 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-LIC_FILES_CHKSUM" title="LIC_FILES_CHKSUM">LIC_FILES_CHKSUM</a></code> | ||
| 19 | variable tracks changes to the license text. The checksums are validated at the end of the | ||
| 20 | configure step, and if the checksums do not match, the build will fail. | ||
| 21 | </p> | ||
| 22 | </div></body> | ||
| 23 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-bitbake.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-bitbake.html new file mode 100644 index 0000000000..06a3b7f9fa --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-bitbake.html | |||
| @@ -0,0 +1,30 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.3.4. General BitBake Problems</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-debugging.html" title="2.3. Debugging Build Failures"> | ||
| 9 | <link rel="prev" href="usingpoky-debugging-dependencies.html" title="2.3.3. Dependency Graphs"> | ||
| 10 | <link rel="next" href="usingpoky-debugging-buildfile.html" title="2.3.5. Building with No Dependencies"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.3.4. General BitBake Problems"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="usingpoky-debugging-bitbake"></a>2.3.4. General BitBake Problems</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | You can see debug output from BitBake by using the <code class="filename">-D</code> option. | ||
| 17 | The debug output gives more information about what BitBake | ||
| 18 | is doing and the reason behind it. | ||
| 19 | Each <code class="filename">-D</code> option you use increases the logging level. | ||
| 20 | The most common usage is <code class="filename">-DDD</code>. | ||
| 21 | </p> | ||
| 22 | <p> | ||
| 23 | The output from <code class="filename">bitbake -DDD -v targetname</code> can reveal why | ||
| 24 | BitBake chose a certain version of a package or why BitBake | ||
| 25 | picked a certain provider. | ||
| 26 | This command could also help you in a situation where you think BitBake did something | ||
| 27 | unexpected. | ||
| 28 | </p> | ||
| 29 | </div></body> | ||
| 30 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-buildfile.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-buildfile.html new file mode 100644 index 0000000000..9450f1aaff --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-buildfile.html | |||
| @@ -0,0 +1,24 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.3.5. Building with No Dependencies</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-debugging.html" title="2.3. Debugging Build Failures"> | ||
| 9 | <link rel="prev" href="usingpoky-debugging-bitbake.html" title="2.3.4. General BitBake Problems"> | ||
| 10 | <link rel="next" href="usingpoky-debugging-variables.html" title="2.3.6. Variables"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.3.5. Building with No Dependencies"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="usingpoky-debugging-buildfile"></a>2.3.5. Building with No Dependencies</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | If you really want to build a specific <code class="filename">.bb</code> file, you can use | ||
| 17 | the command form <code class="filename">bitbake -b <somepath/somefile.bb></code>. | ||
| 18 | This command form does not check for dependencies so you should use it | ||
| 19 | only when you know its dependencies already exist. | ||
| 20 | You can also specify fragments of the filename. | ||
| 21 | In this case, BitBake checks for a unique match. | ||
| 22 | </p> | ||
| 23 | </div></body> | ||
| 24 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-dependencies.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-dependencies.html new file mode 100644 index 0000000000..c48b00e97a --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-dependencies.html | |||
| @@ -0,0 +1,26 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.3.3. Dependency Graphs</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-debugging.html" title="2.3. Debugging Build Failures"> | ||
| 9 | <link rel="prev" href="usingpoky-debugging-taskrunning.html" title="2.3.2. Running Specific Tasks"> | ||
| 10 | <link rel="next" href="usingpoky-debugging-bitbake.html" title="2.3.4. General BitBake Problems"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.3.3. Dependency Graphs"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="usingpoky-debugging-dependencies"></a>2.3.3. Dependency Graphs</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | Sometimes it can be hard to see why BitBake wants to build some other packages before a given | ||
| 17 | package you have specified. | ||
| 18 | The <code class="filename">bitbake -g targetname</code> command creates the | ||
| 19 | <code class="filename">depends.dot</code>, <code class="filename">package-depends.dot</code>, | ||
| 20 | and <code class="filename">task-depends.dot</code> files in the current directory. | ||
| 21 | These files show the package and task dependencies and are useful for debugging problems. | ||
| 22 | You can use the <code class="filename">bitbake -g -u depexp targetname</code> command to | ||
| 23 | display the results in a more human-readable form. | ||
| 24 | </p> | ||
| 25 | </div></body> | ||
| 26 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-others.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-others.html new file mode 100644 index 0000000000..a83f4cc4e4 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-others.html | |||
| @@ -0,0 +1,34 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.3.8. Other Tips</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-debugging.html" title="2.3. Debugging Build Failures"> | ||
| 9 | <link rel="prev" href="logging-with-bash.html" title="2.3.7.2. Logging With Bash"> | ||
| 10 | <link rel="next" href="maintaining-build-output-quality.html" title="2.4. Maintaining Build Output Quality"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.3.8. Other Tips"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="usingpoky-debugging-others"></a>2.3.8. Other Tips</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | Here are some other tips that you might find useful: | ||
| 17 | </p> | ||
| 18 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 19 | <li class="listitem"><p>When adding new packages, it is worth watching for | ||
| 20 | undesirable items making their way into compiler command lines. | ||
| 21 | For example, you do not want references to local system files like | ||
| 22 | <code class="filename">/usr/lib/</code> or <code class="filename">/usr/include/</code>. | ||
| 23 | </p></li> | ||
| 24 | <li class="listitem"><p>If you want to remove the psplash boot splashscreen, | ||
| 25 | add <code class="filename">psplash=false</code> to the kernel command line. | ||
| 26 | Doing so prevents psplash from loading and thus allows you to see the console. | ||
| 27 | It is also possible to switch out of the splashscreen by | ||
| 28 | switching the virtual console (e.g. Fn+Left or Fn+Right on a Zaurus). | ||
| 29 | </p></li> | ||
| 30 | </ul></div> | ||
| 31 | <p> | ||
| 32 | </p> | ||
| 33 | </div></body> | ||
| 34 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-taskfailures.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-taskfailures.html new file mode 100644 index 0000000000..709af32619 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-taskfailures.html | |||
| @@ -0,0 +1,27 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.3.1. Task Failures</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-debugging.html" title="2.3. Debugging Build Failures"> | ||
| 9 | <link rel="prev" href="usingpoky-debugging.html" title="2.3. Debugging Build Failures"> | ||
| 10 | <link rel="next" href="usingpoky-debugging-taskrunning.html" title="2.3.2. Running Specific Tasks"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.3.1. Task Failures"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="usingpoky-debugging-taskfailures"></a>2.3.1. Task Failures</h3></div></div></div> | ||
| 15 | <p>The log file for shell tasks is available in | ||
| 16 | <code class="filename">${WORKDIR}/temp/log.do_taskname.pid</code>. | ||
| 17 | For example, the <code class="filename">compile</code> task for the QEMU minimal image for the x86 | ||
| 18 | machine (<code class="filename">qemux86</code>) might be | ||
| 19 | <code class="filename">tmp/work/qemux86-poky-linux/core-image-minimal-1.0-r0/temp/log.do_compile.20830</code>. | ||
| 20 | To see what BitBake runs to generate that log, look at the corresponding | ||
| 21 | <code class="filename">run.do_taskname.pid</code> file located in the same directory. | ||
| 22 | </p> | ||
| 23 | <p> | ||
| 24 | Presently, the output from Python tasks is sent directly to the console. | ||
| 25 | </p> | ||
| 26 | </div></body> | ||
| 27 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-taskrunning.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-taskrunning.html new file mode 100644 index 0000000000..998d9d03c7 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-taskrunning.html | |||
| @@ -0,0 +1,68 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.3.2. Running Specific Tasks</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-debugging.html" title="2.3. Debugging Build Failures"> | ||
| 9 | <link rel="prev" href="usingpoky-debugging-taskfailures.html" title="2.3.1. Task Failures"> | ||
| 10 | <link rel="next" href="usingpoky-debugging-dependencies.html" title="2.3.3. Dependency Graphs"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.3.2. Running Specific Tasks"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="usingpoky-debugging-taskrunning"></a>2.3.2. Running Specific Tasks</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | Any given package consists of a set of tasks. | ||
| 17 | The standard BitBake behavior in most cases is: <code class="filename">fetch</code>, | ||
| 18 | <code class="filename">unpack</code>, | ||
| 19 | <code class="filename">patch</code>, <code class="filename">configure</code>, | ||
| 20 | <code class="filename">compile</code>, <code class="filename">install</code>, <code class="filename">package</code>, | ||
| 21 | <code class="filename">package_write</code>, and <code class="filename">build</code>. | ||
| 22 | The default task is <code class="filename">build</code> and any tasks on which it depends | ||
| 23 | build first. | ||
| 24 | Some tasks exist, such as <code class="filename">devshell</code>, that are not part of the | ||
| 25 | default build chain. | ||
| 26 | If you wish to run a task that is not part of the default build chain, you can use the | ||
| 27 | <code class="filename">-c</code> option in BitBake as follows: | ||
| 28 | </p> | ||
| 29 | <pre class="literallayout"> | ||
| 30 | $ bitbake matchbox-desktop -c devshell | ||
| 31 | </pre> | ||
| 32 | <p> | ||
| 33 | </p> | ||
| 34 | <p> | ||
| 35 | If you wish to rerun a task, use the <code class="filename">-f</code> force option. | ||
| 36 | For example, the following sequence forces recompilation after changing files in the | ||
| 37 | working directory. | ||
| 38 | </p> | ||
| 39 | <pre class="literallayout"> | ||
| 40 | $ bitbake matchbox-desktop | ||
| 41 | . | ||
| 42 | . | ||
| 43 | [make some changes to the source code in the working directory] | ||
| 44 | . | ||
| 45 | . | ||
| 46 | $ bitbake matchbox-desktop -c compile -f | ||
| 47 | $ bitbake matchbox-desktop | ||
| 48 | </pre> | ||
| 49 | <p> | ||
| 50 | </p> | ||
| 51 | <p> | ||
| 52 | This sequence first builds <code class="filename">matchbox-desktop</code> and then recompiles it. | ||
| 53 | The last command reruns all tasks (basically the packaging tasks) after the compile. | ||
| 54 | BitBake recognizes that the <code class="filename">compile</code> task was rerun and therefore | ||
| 55 | understands that the other tasks also need to be run again. | ||
| 56 | </p> | ||
| 57 | <p> | ||
| 58 | You can view a list of tasks in a given package by running the | ||
| 59 | <code class="filename">listtasks</code> task as follows: | ||
| 60 | </p> | ||
| 61 | <pre class="literallayout"> | ||
| 62 | $ bitbake matchbox-desktop -c listtasks | ||
| 63 | </pre> | ||
| 64 | <p> | ||
| 65 | The results are in the file <code class="filename">${WORKDIR}/temp/log.do_listtasks</code>. | ||
| 66 | </p> | ||
| 67 | </div></body> | ||
| 68 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-variables.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-variables.html new file mode 100644 index 0000000000..ae185be166 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging-variables.html | |||
| @@ -0,0 +1,22 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.3.6. Variables</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-debugging.html" title="2.3. Debugging Build Failures"> | ||
| 9 | <link rel="prev" href="usingpoky-debugging-buildfile.html" title="2.3.5. Building with No Dependencies"> | ||
| 10 | <link rel="next" href="recipe-logging-mechanisms.html" title="2.3.7. Recipe Logging Mechanisms"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.3.6. Variables"> | ||
| 13 | <div class="titlepage"><div><div><h3 class="title"> | ||
| 14 | <a name="usingpoky-debugging-variables"></a>2.3.6. Variables</h3></div></div></div> | ||
| 15 | <p> | ||
| 16 | The <code class="filename">-e</code> option dumps the resulting environment for | ||
| 17 | either the configuration (no package specified) or for a | ||
| 18 | specific package when specified; or <code class="filename">-b recipename</code> | ||
| 19 | to show the environment from parsing a single recipe file only. | ||
| 20 | </p> | ||
| 21 | </div></body> | ||
| 22 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging.html new file mode 100644 index 0000000000..9a8b72dc96 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-debugging.html | |||
| @@ -0,0 +1,26 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.3. Debugging Build Failures</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky.html" title="Chapter 2. Using the Yocto Project"> | ||
| 9 | <link rel="prev" href="usingpoky-install.html" title="2.2. Installing and Using the Result"> | ||
| 10 | <link rel="next" href="usingpoky-debugging-taskfailures.html" title="2.3.1. Task Failures"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.3. Debugging Build Failures"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="usingpoky-debugging"></a>2.3. Debugging Build Failures</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | The exact method for debugging build failures depends on the nature of the | ||
| 17 | problem and on the system's area from which the bug originates. | ||
| 18 | Standard debugging practices such as comparison against the last | ||
| 19 | known working version with examination of the changes and the re-application of steps | ||
| 20 | to identify the one causing the problem are | ||
| 21 | valid for the Yocto Project just as they are for any other system. | ||
| 22 | Even though it is impossible to detail every possible potential failure, | ||
| 23 | this section provides some general tips to aid in debugging. | ||
| 24 | </p> | ||
| 25 | </div></body> | ||
| 26 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-install.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-install.html new file mode 100644 index 0000000000..d8d60e1c6b --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-install.html | |||
| @@ -0,0 +1,28 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>2.2. Installing and Using the Result</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky.html" title="Chapter 2. Using the Yocto Project"> | ||
| 9 | <link rel="prev" href="building-an-image-using-gpl-components.html" title="2.1.2. Building an Image Using GPL Components"> | ||
| 10 | <link rel="next" href="usingpoky-debugging.html" title="2.3. Debugging Build Failures"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.2. Installing and Using the Result"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="usingpoky-install"></a>2.2. Installing and Using the Result</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | Once an image has been built, it often needs to be installed. | ||
| 17 | The images and kernels built by the OpenEmbedded build system are placed in the | ||
| 18 | <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a> in | ||
| 19 | <code class="filename">tmp/deploy/images</code>. | ||
| 20 | For information on how to run pre-built images such as <code class="filename">qemux86</code> | ||
| 21 | and <code class="filename">qemuarm</code>, see the | ||
| 22 | "<a class="link" href="../yocto-project-qs/using-pre-built.html" target="_self">Using Pre-Built Binaries and QEMU</a>" | ||
| 23 | section in the Yocto Project Quick Start. | ||
| 24 | For information about how to install these images, see the documentation for your | ||
| 25 | particular board/machine. | ||
| 26 | </p> | ||
| 27 | </div></body> | ||
| 28 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-specifying-LIC_FILES_CHKSUM.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-specifying-LIC_FILES_CHKSUM.html new file mode 100644 index 0000000000..b518fce8a1 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky-specifying-LIC_FILES_CHKSUM.html | |||
| @@ -0,0 +1,57 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.4.1.1. Specifying the LIC_FILES_CHKSUM Variable</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="usingpoky-configuring-LIC_FILES_CHKSUM.html" title="3.4.1. Tracking License Changes"> | ||
| 9 | <link rel="prev" href="usingpoky-configuring-LIC_FILES_CHKSUM.html" title="3.4.1. Tracking License Changes"> | ||
| 10 | <link rel="next" href="usingpoky-LIC_FILES_CHKSUM-explanation-of-syntax.html" title="3.4.1.2. Explanation of Syntax"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.4.1.1. Specifying the LIC_FILES_CHKSUM Variable"> | ||
| 13 | <div class="titlepage"><div><div><h4 class="title"> | ||
| 14 | <a name="usingpoky-specifying-LIC_FILES_CHKSUM"></a>3.4.1.1. Specifying the <code class="filename">LIC_FILES_CHKSUM</code> Variable</h4></div></div></div> | ||
| 15 | <p> | ||
| 16 | The <code class="filename">LIC_FILES_CHKSUM</code> | ||
| 17 | variable contains checksums of the license text in the source code for the recipe. | ||
| 18 | Following is an example of how to specify <code class="filename">LIC_FILES_CHKSUM</code>: | ||
| 19 | </p> | ||
| 20 | <pre class="literallayout"> | ||
| 21 | LIC_FILES_CHKSUM = "file://COPYING;md5=xxxx \ | ||
| 22 | file://licfile1.txt;beginline=5;endline=29;md5=yyyy \ | ||
| 23 | file://licfile2.txt;endline=50;md5=zzzz \ | ||
| 24 | ..." | ||
| 25 | </pre> | ||
| 26 | <p> | ||
| 27 | </p> | ||
| 28 | <p> | ||
| 29 | The build system uses the | ||
| 30 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-S" title="S">S</a></code> variable as the | ||
| 31 | default directory used when searching files listed in | ||
| 32 | <code class="filename">LIC_FILES_CHKSUM</code>. | ||
| 33 | The previous example employs the default directory. | ||
| 34 | </p> | ||
| 35 | <p> | ||
| 36 | You can also use relative paths as shown in the following example: | ||
| 37 | </p> | ||
| 38 | <pre class="literallayout"> | ||
| 39 | LIC_FILES_CHKSUM = "file://src/ls.c;startline=5;endline=16;\ | ||
| 40 | md5=bb14ed3c4cda583abc85401304b5cd4e" | ||
| 41 | LIC_FILES_CHKSUM = "file://../license.html;md5=5c94767cedb5d6987c902ac850ded2c6" | ||
| 42 | </pre> | ||
| 43 | <p> | ||
| 44 | </p> | ||
| 45 | <p> | ||
| 46 | In this example, the first line locates a file in | ||
| 47 | <code class="filename">${S}/src/ls.c</code>. | ||
| 48 | The second line refers to a file in | ||
| 49 | <code class="filename"><a class="link" href="ref-variables-glos.html#var-WORKDIR" title="WORKDIR">WORKDIR</a></code>, which is the parent | ||
| 50 | of <code class="filename"><a class="link" href="ref-variables-glos.html#var-S" title="S">S</a></code>. | ||
| 51 | </p> | ||
| 52 | <p> | ||
| 53 | Note that this variable is mandatory for all recipes, unless the | ||
| 54 | <code class="filename">LICENSE</code> variable is set to "CLOSED". | ||
| 55 | </p> | ||
| 56 | </div></body> | ||
| 57 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky.html new file mode 100644 index 0000000000..95be1f1041 --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/usingpoky.html | |||
| @@ -0,0 +1,48 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 2. Using the Yocto Project</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="intro-getit-dev.html" title="1.5. Development Checkouts"> | ||
| 10 | <link rel="next" href="usingpoky-build.html" title="2.1. Running a Build"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 2. Using the Yocto Project"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="usingpoky"></a>Chapter 2. Using the Yocto Project</h2></div></div></div> | ||
| 15 | <div class="toc"> | ||
| 16 | <p><b>Table of Contents</b></p> | ||
| 17 | <dl> | ||
| 18 | <dt><span class="section"><a href="usingpoky-build.html">2.1. Running a Build</a></span></dt> | ||
| 19 | <dd><dl> | ||
| 20 | <dt><span class="section"><a href="build-overview.html">2.1.1. Build Overview</a></span></dt> | ||
| 21 | <dt><span class="section"><a href="building-an-image-using-gpl-components.html">2.1.2. Building an Image Using GPL Components</a></span></dt> | ||
| 22 | </dl></dd> | ||
| 23 | <dt><span class="section"><a href="usingpoky-install.html">2.2. Installing and Using the Result</a></span></dt> | ||
| 24 | <dt><span class="section"><a href="usingpoky-debugging.html">2.3. Debugging Build Failures</a></span></dt> | ||
| 25 | <dd><dl> | ||
| 26 | <dt><span class="section"><a href="usingpoky-debugging-taskfailures.html">2.3.1. Task Failures</a></span></dt> | ||
| 27 | <dt><span class="section"><a href="usingpoky-debugging-taskrunning.html">2.3.2. Running Specific Tasks</a></span></dt> | ||
| 28 | <dt><span class="section"><a href="usingpoky-debugging-dependencies.html">2.3.3. Dependency Graphs</a></span></dt> | ||
| 29 | <dt><span class="section"><a href="usingpoky-debugging-bitbake.html">2.3.4. General BitBake Problems</a></span></dt> | ||
| 30 | <dt><span class="section"><a href="usingpoky-debugging-buildfile.html">2.3.5. Building with No Dependencies</a></span></dt> | ||
| 31 | <dt><span class="section"><a href="usingpoky-debugging-variables.html">2.3.6. Variables</a></span></dt> | ||
| 32 | <dt><span class="section"><a href="recipe-logging-mechanisms.html">2.3.7. Recipe Logging Mechanisms</a></span></dt> | ||
| 33 | <dt><span class="section"><a href="usingpoky-debugging-others.html">2.3.8. Other Tips</a></span></dt> | ||
| 34 | </dl></dd> | ||
| 35 | <dt><span class="section"><a href="maintaining-build-output-quality.html">2.4. Maintaining Build Output Quality</a></span></dt> | ||
| 36 | <dd><dl> | ||
| 37 | <dt><span class="section"><a href="enabling-and-disabling-build-history.html">2.4.1. Enabling and Disabling Build History</a></span></dt> | ||
| 38 | <dt><span class="section"><a href="understanding-what-the-build-history-contains.html">2.4.2. Understanding What the Build History Contains</a></span></dt> | ||
| 39 | </dl></dd> | ||
| 40 | </dl> | ||
| 41 | </div> | ||
| 42 | <p> | ||
| 43 | This chapter describes common usage for the Yocto Project. | ||
| 44 | The information is introductory in nature as other manuals in the Yocto Project | ||
| 45 | documentation set provide more details on how to use the Yocto Project. | ||
| 46 | </p> | ||
| 47 | </div></body> | ||
| 48 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/html/poky-ref-manual/x32.html b/documentation/ref-manual/eclipse/html/poky-ref-manual/x32.html new file mode 100644 index 0000000000..5be350886c --- /dev/null +++ b/documentation/ref-manual/eclipse/html/poky-ref-manual/x32.html | |||
| @@ -0,0 +1,35 @@ | |||
| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>3.3. x32</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="technical-details.html" title="Chapter 3. Technical Details"> | ||
| 9 | <link rel="prev" href="invalidating-shared-state.html" title="3.2.4.2. Invalidating Shared State"> | ||
| 10 | <link rel="next" href="support.html" title="3.3.1. Support"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="3.3. x32"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title" style="clear: both"> | ||
| 14 | <a name="x32"></a>3.3. x32</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | x32 is a new processor-specific Application Binary Interface (psABI) for x86_64. | ||
| 17 | An ABI defines the calling conventions between functions in a processing environment. | ||
| 18 | The interface determines what registers are used and what the sizes are for various C data types. | ||
| 19 | </p> | ||
| 20 | <p> | ||
| 21 | Some processing environments prefer using 32-bit applications even when running | ||
| 22 | on Intel 64-bit platforms. | ||
| 23 | Consider the i386 psABI, which is a very old 32-bit ABI for Intel 64-bit platforms. | ||
| 24 | The i386 psABI does not provide efficient use and access of the Intel 64-bit processor resources, | ||
| 25 | leaving the system underutilized. | ||
| 26 | Now consider the x86_64 psABI. | ||
| 27 | This ABI is newer and uses 64-bits for data sizes and program pointers. | ||
| 28 | The extra bits increase the footprint size of the programs, libraries, | ||
| 29 | and also increases the memory and file system size requirements. | ||
| 30 | Executing under the x32 psABI enables user programs to utilize CPU and system resources | ||
| 31 | more efficiently while keeping the memory footprint of the applications low. | ||
| 32 | Extra bits are used for registers but not for addressing mechanisms. | ||
| 33 | </p> | ||
| 34 | </div></body> | ||
| 35 | </html> | ||
diff --git a/documentation/ref-manual/eclipse/poky-ref-manual-toc.xml b/documentation/ref-manual/eclipse/poky-ref-manual-toc.xml new file mode 100644 index 0000000000..8624641cf5 --- /dev/null +++ b/documentation/ref-manual/eclipse/poky-ref-manual-toc.xml | |||
| @@ -0,0 +1,217 @@ | |||
| 1 | <?xml version="1.0" encoding="utf-8" standalone="no"?> | ||
| 2 | <toc label="The Yocto Project Reference Manual" topic="html/poky-ref-manual/index.html"> | ||
| 3 | <topic label="Introduction" href="html/poky-ref-manual/intro.html"> | ||
| 4 | <topic label="Introduction" href="html/poky-ref-manual/intro-welcome.html"/> | ||
| 5 | <topic label="Documentation Overview" href="html/poky-ref-manual/intro-manualoverview.html"/> | ||
| 6 | <topic label="System Requirements" href="html/poky-ref-manual/intro-requirements.html"> | ||
| 7 | <topic label="Supported Linux Distributions" href="html/poky-ref-manual/detailed-supported-distros.html"/> | ||
| 8 | <topic label="Required Packages for the Host Development System" href="html/poky-ref-manual/required-packages-for-the-host-development-system.html"> | ||
| 9 | <topic label="Ubuntu" href="html/poky-ref-manual/ubuntu-packages.html"/> | ||
| 10 | <topic label="Fedora Packages" href="html/poky-ref-manual/fedora-packages.html"/> | ||
| 11 | <topic label="OpenSUSE Packages" href="html/poky-ref-manual/opensuse-packages.html"/> | ||
| 12 | <topic label="CentOS Packages" href="html/poky-ref-manual/centos-packages.html"/> | ||
| 13 | </topic> | ||
| 14 | </topic> | ||
| 15 | <topic label="Obtaining the Yocto Project" href="html/poky-ref-manual/intro-getit.html"/> | ||
| 16 | <topic label="Development Checkouts" href="html/poky-ref-manual/intro-getit-dev.html"/> | ||
| 17 | </topic> | ||
| 18 | <topic label="Using the Yocto Project" href="html/poky-ref-manual/usingpoky.html"> | ||
| 19 | <topic label="Running a Build" href="html/poky-ref-manual/usingpoky-build.html"> | ||
| 20 | <topic label="Build Overview" href="html/poky-ref-manual/build-overview.html"/> | ||
| 21 | <topic label="Building an Image Using GPL Components" href="html/poky-ref-manual/building-an-image-using-gpl-components.html"/> | ||
| 22 | </topic> | ||
| 23 | <topic label="Installing and Using the Result" href="html/poky-ref-manual/usingpoky-install.html"/> | ||
| 24 | <topic label="Debugging Build Failures" href="html/poky-ref-manual/usingpoky-debugging.html"> | ||
| 25 | <topic label="Task Failures" href="html/poky-ref-manual/usingpoky-debugging-taskfailures.html"/> | ||
| 26 | <topic label="Running Specific Tasks" href="html/poky-ref-manual/usingpoky-debugging-taskrunning.html"/> | ||
| 27 | <topic label="Dependency Graphs" href="html/poky-ref-manual/usingpoky-debugging-dependencies.html"/> | ||
| 28 | <topic label="General BitBake Problems" href="html/poky-ref-manual/usingpoky-debugging-bitbake.html"/> | ||
| 29 | <topic label="Building with No Dependencies" href="html/poky-ref-manual/usingpoky-debugging-buildfile.html"/> | ||
| 30 | <topic label="Variables" href="html/poky-ref-manual/usingpoky-debugging-variables.html"/> | ||
| 31 | <topic label="Recipe Logging Mechanisms" href="html/poky-ref-manual/recipe-logging-mechanisms.html"> | ||
| 32 | <topic label="Logging With Python" href="html/poky-ref-manual/logging-with-python.html"/> | ||
| 33 | <topic label="Logging With Bash" href="html/poky-ref-manual/logging-with-bash.html"/> | ||
| 34 | </topic> | ||
| 35 | <topic label="Other Tips" href="html/poky-ref-manual/usingpoky-debugging-others.html"/> | ||
| 36 | </topic> | ||
| 37 | <topic label="Maintaining Build Output Quality" href="html/poky-ref-manual/maintaining-build-output-quality.html"> | ||
| 38 | <topic label="Enabling and Disabling Build History" href="html/poky-ref-manual/enabling-and-disabling-build-history.html"/> | ||
| 39 | <topic label="Understanding What the Build History Contains" href="html/poky-ref-manual/understanding-what-the-build-history-contains.html"> | ||
| 40 | <topic label="Build History Package Information" href="html/poky-ref-manual/build-history-package-information.html"/> | ||
| 41 | <topic label="Build History Image Information" href="html/poky-ref-manual/build-history-image-information.html"/> | ||
| 42 | <topic label="Using Build History to Gather Image Information Only" href="html/poky-ref-manual/using-build-history-to-gather-image-information-only.html"/> | ||
| 43 | <topic label="Examining Build History Information" href="html/poky-ref-manual/examining-build-history-information.html"/> | ||
| 44 | </topic> | ||
| 45 | </topic> | ||
| 46 | </topic> | ||
| 47 | <topic label="Technical Details" href="html/poky-ref-manual/technical-details.html"> | ||
| 48 | <topic label="Yocto Project Components" href="html/poky-ref-manual/usingpoky-components.html"> | ||
| 49 | <topic label="BitBake" href="html/poky-ref-manual/usingpoky-components-bitbake.html"/> | ||
| 50 | <topic label="Metadata (Recipes)" href="html/poky-ref-manual/usingpoky-components-metadata.html"/> | ||
| 51 | <topic label="Classes" href="html/poky-ref-manual/usingpoky-components-classes.html"/> | ||
| 52 | <topic label="Configuration" href="html/poky-ref-manual/usingpoky-components-configuration.html"/> | ||
| 53 | </topic> | ||
| 54 | <topic label="Shared State Cache" href="html/poky-ref-manual/shared-state-cache.html"> | ||
| 55 | <topic label="Overall Architecture" href="html/poky-ref-manual/overall-architecture.html"/> | ||
| 56 | <topic label="Checksums (Signatures)" href="html/poky-ref-manual/checksums.html"/> | ||
| 57 | <topic label="Shared State" href="html/poky-ref-manual/shared-state.html"/> | ||
| 58 | <topic label="Tips and Tricks" href="html/poky-ref-manual/tips-and-tricks.html"> | ||
| 59 | <topic label="Debugging" href="html/poky-ref-manual/debugging.html"/> | ||
| 60 | <topic label="Invalidating Shared State" href="html/poky-ref-manual/invalidating-shared-state.html"/> | ||
| 61 | </topic> | ||
| 62 | </topic> | ||
| 63 | <topic label="x32" href="html/poky-ref-manual/x32.html"> | ||
| 64 | <topic label="Support" href="html/poky-ref-manual/support.html"/> | ||
| 65 | <topic label="Future Development and Limitations" href="html/poky-ref-manual/future-development-and-limitations.html"/> | ||
| 66 | <topic label="Using x32 Right Now" href="html/poky-ref-manual/using-x32-right-now.html"/> | ||
| 67 | </topic> | ||
| 68 | <topic label="Licenses" href="html/poky-ref-manual/licenses.html"> | ||
| 69 | <topic label="Tracking License Changes" href="html/poky-ref-manual/usingpoky-configuring-LIC_FILES_CHKSUM.html"> | ||
| 70 | <topic label="Specifying the LIC_FILES_CHKSUM Variable" href="html/poky-ref-manual/usingpoky-specifying-LIC_FILES_CHKSUM.html"/> | ||
| 71 | <topic label="Explanation of Syntax" href="html/poky-ref-manual/usingpoky-LIC_FILES_CHKSUM-explanation-of-syntax.html"/> | ||
| 72 | </topic> | ||
| 73 | <topic label="Enabling Commercially Licensed Recipes" href="html/poky-ref-manual/enabling-commercially-licensed-recipes.html"> | ||
| 74 | <topic label="License Flag Matching" href="html/poky-ref-manual/license-flag-matching.html"/> | ||
| 75 | <topic label="Other Variables Related to Commercial Licenses" href="html/poky-ref-manual/other-variables-related-to-commercial-licenses.html"/> | ||
| 76 | </topic> | ||
| 77 | </topic> | ||
| 78 | </topic> | ||
| 79 | <topic label="Migrating to a Newer Yocto Project Release" href="html/poky-ref-manual/migration.html"> | ||
| 80 | <topic label="Moving to the Yocto Project 1.3 Release" href="html/poky-ref-manual/moving-to-the-yocto-project-1.3-release.html"> | ||
| 81 | <topic label="Local Configuration" href="html/poky-ref-manual/1.3-local-configuration.html"> | ||
| 82 | <topic label="SSTATE_MIRRORS" href="html/poky-ref-manual/migration-1.3-sstate-mirrors.html"/> | ||
| 83 | <topic label="bblayers.conf" href="html/poky-ref-manual/migration-1.3-bblayers-conf.html"/> | ||
| 84 | </topic> | ||
| 85 | <topic label="Recipes" href="html/poky-ref-manual/1.3-recipes.html"> | ||
| 86 | <topic label="Python Function Whitespace" href="html/poky-ref-manual/migration-1.3-python-function-whitespace.html"/> | ||
| 87 | <topic label="proto= in SRC_URI" href="html/poky-ref-manual/migration-1.3-proto=-in-src-uri.html"/> | ||
| 88 | <topic label="nativesdk" href="html/poky-ref-manual/migration-1.3-nativesdk.html"/> | ||
| 89 | <topic label="Task Recipes" href="html/poky-ref-manual/migration-1.3-task-recipes.html"/> | ||
| 90 | <topic label="IMAGE_FEATURES" href="html/poky-ref-manual/migration-1.3-image-features.html"/> | ||
| 91 | <topic label="Removed Recipes" href="html/poky-ref-manual/migration-1.3-removed-recipes.html"/> | ||
| 92 | </topic> | ||
| 93 | </topic> | ||
| 94 | </topic> | ||
| 95 | <topic label="Source Directory Structure" href="html/poky-ref-manual/ref-structure.html"> | ||
| 96 | <topic label="Top level core components" href="html/poky-ref-manual/structure-core.html"> | ||
| 97 | <topic label="bitbake/" href="html/poky-ref-manual/structure-core-bitbake.html"/> | ||
| 98 | <topic label="build/" href="html/poky-ref-manual/structure-core-build.html"/> | ||
| 99 | <topic label="documentation" href="html/poky-ref-manual/handbook.html"/> | ||
| 100 | <topic label="meta/" href="html/poky-ref-manual/structure-core-meta.html"/> | ||
| 101 | <topic label="meta-yocto/" href="html/poky-ref-manual/structure-core-meta-yocto.html"/> | ||
| 102 | <topic label="meta-yocto-bsp/" href="html/poky-ref-manual/structure-core-meta-yocto-bsp.html"/> | ||
| 103 | <topic label="meta-hob/" href="html/poky-ref-manual/structure-meta-hob.html"/> | ||
| 104 | <topic label="meta-skeleton/" href="html/poky-ref-manual/structure-meta-skeleton.html"/> | ||
| 105 | <topic label="scripts/" href="html/poky-ref-manual/structure-core-scripts.html"/> | ||
| 106 | <topic label="oe-init-build-env" href="html/poky-ref-manual/structure-core-script.html"/> | ||
| 107 | <topic label="LICENSE, README, and README.hardware" href="html/poky-ref-manual/structure-basic-top-level.html"/> | ||
| 108 | </topic> | ||
| 109 | <topic label="The Build Directory - build/" href="html/poky-ref-manual/structure-build.html"> | ||
| 110 | <topic label="build/pseudodone" href="html/poky-ref-manual/structure-build-pseudodone.html"/> | ||
| 111 | <topic label="build/conf/local.conf" href="html/poky-ref-manual/structure-build-conf-local.conf.html"/> | ||
| 112 | <topic label="build/conf/bblayers.conf" href="html/poky-ref-manual/structure-build-conf-bblayers.conf.html"/> | ||
| 113 | <topic label="build/conf/sanity_info" href="html/poky-ref-manual/structure-build-conf-sanity_info.html"/> | ||
| 114 | <topic label="build/downloads/" href="html/poky-ref-manual/structure-build-downloads.html"/> | ||
| 115 | <topic label="build/sstate-cache/" href="html/poky-ref-manual/structure-build-sstate-cache.html"/> | ||
| 116 | <topic label="build/tmp/" href="html/poky-ref-manual/structure-build-tmp.html"/> | ||
| 117 | <topic label="build/tmp/buildstats/" href="html/poky-ref-manual/structure-build-tmp-buildstats.html"/> | ||
| 118 | <topic label="build/tmp/cache/" href="html/poky-ref-manual/structure-build-tmp-cache.html"/> | ||
| 119 | <topic label="build/tmp/deploy/" href="html/poky-ref-manual/structure-build-tmp-deploy.html"/> | ||
| 120 | <topic label="build/tmp/deploy/deb/" href="html/poky-ref-manual/structure-build-tmp-deploy-deb.html"/> | ||
| 121 | <topic label="build/tmp/deploy/rpm/" href="html/poky-ref-manual/structure-build-tmp-deploy-rpm.html"/> | ||
| 122 | <topic label="build/tmp/deploy/licenses/" href="html/poky-ref-manual/structure-build-tmp-deploy-licenses.html"/> | ||
| 123 | <topic label="build/tmp/deploy/images/" href="html/poky-ref-manual/structure-build-tmp-deploy-images.html"/> | ||
| 124 | <topic label="build/tmp/deploy/ipk/" href="html/poky-ref-manual/structure-build-tmp-deploy-ipk.html"/> | ||
| 125 | <topic label="build/tmp/sysroots/" href="html/poky-ref-manual/structure-build-tmp-sysroots.html"/> | ||
| 126 | <topic label="build/tmp/stamps/" href="html/poky-ref-manual/structure-build-tmp-stamps.html"/> | ||
| 127 | <topic label="build/tmp/log/" href="html/poky-ref-manual/structure-build-tmp-log.html"/> | ||
| 128 | <topic label="build/tmp/pkgdata/" href="html/poky-ref-manual/structure-build-tmp-pkgdata.html"/> | ||
| 129 | <topic label="build/tmp/work/" href="html/poky-ref-manual/structure-build-tmp-work.html"/> | ||
| 130 | </topic> | ||
| 131 | <topic label="The Metadata - meta/" href="html/poky-ref-manual/structure-meta.html"> | ||
| 132 | <topic label="meta/classes/" href="html/poky-ref-manual/structure-meta-classes.html"/> | ||
| 133 | <topic label="meta/conf/" href="html/poky-ref-manual/structure-meta-conf.html"/> | ||
| 134 | <topic label="meta/conf/machine/" href="html/poky-ref-manual/structure-meta-conf-machine.html"/> | ||
| 135 | <topic label="meta/conf/distro/" href="html/poky-ref-manual/structure-meta-conf-distro.html"/> | ||
| 136 | <topic label="meta/recipes-bsp/" href="html/poky-ref-manual/structure-meta-recipes-bsp.html"/> | ||
| 137 | <topic label="meta/recipes-connectivity/" href="html/poky-ref-manual/structure-meta-recipes-connectivity.html"/> | ||
| 138 | <topic label="meta/recipes-core/" href="html/poky-ref-manual/structure-meta-recipes-core.html"/> | ||
| 139 | <topic label="meta/recipes-devtools/" href="html/poky-ref-manual/structure-meta-recipes-devtools.html"/> | ||
| 140 | <topic label="meta/recipes-extended/" href="html/poky-ref-manual/structure-meta-recipes-extended.html"/> | ||
| 141 | <topic label="meta/recipes-gnome/" href="html/poky-ref-manual/structure-meta-recipes-gnome.html"/> | ||
| 142 | <topic label="meta/recipes-graphics/" href="html/poky-ref-manual/structure-meta-recipes-graphics.html"/> | ||
| 143 | <topic label="meta/recipes-kernel/" href="html/poky-ref-manual/structure-meta-recipes-kernel.html"/> | ||
| 144 | <topic label="meta/recipes-multimedia/" href="html/poky-ref-manual/structure-meta-recipes-multimedia.html"/> | ||
| 145 | <topic label="meta/recipes-qt/" href="html/poky-ref-manual/structure-meta-recipes-qt.html"/> | ||
| 146 | <topic label="meta/recipes-rt/" href="html/poky-ref-manual/structure-meta-recipes-rt.html"/> | ||
| 147 | <topic label="meta/recipes-sato/" href="html/poky-ref-manual/structure-meta-recipes-sato.html"/> | ||
| 148 | <topic label="meta/recipes-support/" href="html/poky-ref-manual/structure-meta-recipes-support.html"/> | ||
| 149 | <topic label="meta/site/" href="html/poky-ref-manual/structure-meta-site.html"/> | ||
| 150 | <topic label="meta/recipes.txt" href="html/poky-ref-manual/structure-meta-recipes-txt.html"/> | ||
| 151 | </topic> | ||
| 152 | </topic> | ||
| 153 | <topic label="BitBake" href="html/poky-ref-manual/ref-bitbake.html"> | ||
| 154 | <topic label="Parsing" href="html/poky-ref-manual/ref-bitbake-parsing.html"/> | ||
| 155 | <topic label="Preferences and Providers" href="html/poky-ref-manual/ref-bitbake-providers.html"/> | ||
| 156 | <topic label="Dependencies" href="html/poky-ref-manual/ref-bitbake-dependencies.html"/> | ||
| 157 | <topic label="The Task List" href="html/poky-ref-manual/ref-bitbake-tasklist.html"/> | ||
| 158 | <topic label="Running a Task" href="html/poky-ref-manual/ref-bitbake-runtask.html"/> | ||
| 159 | <topic label="BitBake Command Line" href="html/poky-ref-manual/ref-bitbake-commandline.html"/> | ||
| 160 | <topic label="Fetchers" href="html/poky-ref-manual/ref-bitbake-fetchers.html"/> | ||
| 161 | </topic> | ||
| 162 | <topic label="Classes" href="html/poky-ref-manual/ref-classes.html"> | ||
| 163 | <topic label="The base class - base.bbclass" href="html/poky-ref-manual/ref-classes-base.html"/> | ||
| 164 | <topic label="Autotooled Packages - autotools.bbclass" href="html/poky-ref-manual/ref-classes-autotools.html"/> | ||
| 165 | <topic label="Alternatives - update-alternatives.bbclass" href="html/poky-ref-manual/ref-classes-update-alternatives.html"/> | ||
| 166 | <topic label="Initscripts - update-rc.d.bbclass" href="html/poky-ref-manual/ref-classes-update-rc.d.html"/> | ||
| 167 | <topic label="Binary config scripts - binconfig.bbclass" href="html/poky-ref-manual/ref-classes-binconfig.html"/> | ||
| 168 | <topic label="Debian renaming - debian.bbclass" href="html/poky-ref-manual/ref-classes-debian.html"/> | ||
| 169 | <topic label="Pkg-config - pkgconfig.bbclass" href="html/poky-ref-manual/ref-classes-pkgconfig.html"/> | ||
| 170 | <topic label="Distribution of sources - src_distribute_local.bbclass" href="html/poky-ref-manual/ref-classes-src-distribute.html"/> | ||
| 171 | <topic label="Perl modules - cpan.bbclass" href="html/poky-ref-manual/ref-classes-perl.html"/> | ||
| 172 | <topic label="Python extensions - distutils.bbclass" href="html/poky-ref-manual/ref-classes-distutils.html"/> | ||
| 173 | <topic label="Developer Shell - devshell.bbclass" href="html/poky-ref-manual/ref-classes-devshell.html"/> | ||
| 174 | <topic label="Package Groups - packagegroup.bbclass" href="html/poky-ref-manual/ref-classes-packagegroup.html"/> | ||
| 175 | <topic label="Packaging - package*.bbclass" href="html/poky-ref-manual/ref-classes-package.html"/> | ||
| 176 | <topic label="Building kernels - kernel.bbclass" href="html/poky-ref-manual/ref-classes-kernel.html"/> | ||
| 177 | <topic label="Creating images - image.bbclass and rootfs*.bbclass" href="html/poky-ref-manual/ref-classes-image.html"/> | ||
| 178 | <topic label="Host System sanity checks - sanity.bbclass" href="html/poky-ref-manual/ref-classes-sanity.html"/> | ||
| 179 | <topic label="Generated output quality assurance checks - insane.bbclass" href="html/poky-ref-manual/ref-classes-insane.html"/> | ||
| 180 | <topic label="Autotools configuration data cache - siteinfo.bbclass" href="html/poky-ref-manual/ref-classes-siteinfo.html"/> | ||
| 181 | <topic label="Adding Users - useradd.bbclass" href="html/poky-ref-manual/ref-classes-useradd.html"/> | ||
| 182 | <topic label="Using External Source - externalsrc.bbclass" href="html/poky-ref-manual/ref-classes-externalsrc.html"/> | ||
| 183 | <topic label="Other Classes" href="html/poky-ref-manual/ref-classes-others.html"/> | ||
| 184 | </topic> | ||
| 185 | <topic label="Images" href="html/poky-ref-manual/ref-images.html"/> | ||
| 186 | <topic label="Reference: Features" href="html/poky-ref-manual/ref-features.html"> | ||
| 187 | <topic label="Distro" href="html/poky-ref-manual/ref-features-distro.html"/> | ||
| 188 | <topic label="Machine" href="html/poky-ref-manual/ref-features-machine.html"/> | ||
| 189 | <topic label="Images" href="html/poky-ref-manual/ref-features-image.html"/> | ||
| 190 | <topic label="Feature Backfilling" href="html/poky-ref-manual/ref-features-backfill.html"/> | ||
| 191 | </topic> | ||
| 192 | <topic label="Variables Glossary" href="html/poky-ref-manual/ref-variables-glos.html"> | ||
| 193 | <topic label="Glossary" href="html/poky-ref-manual/ref-variables-glos.html#ref-variables-glossary"/> | ||
| 194 | </topic> | ||
| 195 | <topic label="Variable Context" href="html/poky-ref-manual/ref-varlocality.html"> | ||
| 196 | <topic label="Configuration" href="html/poky-ref-manual/ref-varlocality-configuration.html"> | ||
| 197 | <topic label="Distribution (Distro)" href="html/poky-ref-manual/ref-varlocality-config-distro.html"/> | ||
| 198 | <topic label="Machine" href="html/poky-ref-manual/ref-varlocality-config-machine.html"/> | ||
| 199 | <topic label="Local" href="html/poky-ref-manual/ref-varlocality-config-local.html"/> | ||
| 200 | </topic> | ||
| 201 | <topic label="Recipes" href="html/poky-ref-manual/ref-varlocality-recipes.html"> | ||
| 202 | <topic label="Required" href="html/poky-ref-manual/ref-varlocality-recipe-required.html"/> | ||
| 203 | <topic label="Dependencies" href="html/poky-ref-manual/ref-varlocality-recipe-dependencies.html"/> | ||
| 204 | <topic label="Paths" href="html/poky-ref-manual/ref-varlocality-recipe-paths.html"/> | ||
| 205 | <topic label="Extra Build Information" href="html/poky-ref-manual/ref-varlocality-recipe-build.html"/> | ||
| 206 | </topic> | ||
| 207 | </topic> | ||
| 208 | <topic label="FAQ" href="html/poky-ref-manual/faq.html"/> | ||
| 209 | <topic label="Contributing to the Yocto Project" href="html/poky-ref-manual/resources.html"> | ||
| 210 | <topic label="Introduction" href="html/poky-ref-manual/resources-intro.html"/> | ||
| 211 | <topic label="Tracking Bugs" href="html/poky-ref-manual/resources-bugtracker.html"/> | ||
| 212 | <topic label="Mailing lists" href="html/poky-ref-manual/resources-mailinglist.html"/> | ||
| 213 | <topic label="Internet Relay Chat (IRC)" href="html/poky-ref-manual/resources-irc.html"/> | ||
| 214 | <topic label="Links" href="html/poky-ref-manual/resources-links.html"/> | ||
| 215 | <topic label="Contributions" href="html/poky-ref-manual/resources-contributions.html"/> | ||
| 216 | </topic> | ||
| 217 | </toc> | ||
diff --git a/documentation/ref-manual/examples/hello-autotools/hello_2.3.bb b/documentation/ref-manual/examples/hello-autotools/hello_2.3.bb new file mode 100644 index 0000000000..5dfb0b30cf --- /dev/null +++ b/documentation/ref-manual/examples/hello-autotools/hello_2.3.bb | |||
| @@ -0,0 +1,8 @@ | |||
| 1 | DESCRIPTION = "GNU Helloworld application" | ||
| 2 | SECTION = "examples" | ||
| 3 | LICENSE = "GPLv3" | ||
| 4 | LIC_FILES_CHKSUM = "file://COPYING;md5=adefda309052235aa5d1e99ce7557010" | ||
| 5 | |||
| 6 | SRC_URI = "${GNU_MIRROR}/hello/hello-${PV}.tar.bz2" | ||
| 7 | |||
| 8 | inherit autotools | ||
diff --git a/documentation/ref-manual/examples/hello-single/files/helloworld.c b/documentation/ref-manual/examples/hello-single/files/helloworld.c new file mode 100644 index 0000000000..fc7169b7b8 --- /dev/null +++ b/documentation/ref-manual/examples/hello-single/files/helloworld.c | |||
| @@ -0,0 +1,8 @@ | |||
| 1 | #include <stdio.h> | ||
| 2 | |||
| 3 | int main(void) | ||
| 4 | { | ||
| 5 | printf("Hello world!\n"); | ||
| 6 | |||
| 7 | return 0; | ||
| 8 | } | ||
diff --git a/documentation/ref-manual/examples/hello-single/hello.bb b/documentation/ref-manual/examples/hello-single/hello.bb new file mode 100644 index 0000000000..0812743e39 --- /dev/null +++ b/documentation/ref-manual/examples/hello-single/hello.bb | |||
| @@ -0,0 +1,17 @@ | |||
| 1 | DESCRIPTION = "Simple helloworld application" | ||
| 2 | SECTION = "examples" | ||
| 3 | LICENSE = "MIT" | ||
| 4 | LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302" | ||
| 5 | |||
| 6 | SRC_URI = "file://helloworld.c" | ||
| 7 | |||
| 8 | S = "${WORKDIR}" | ||
| 9 | |||
| 10 | do_compile() { | ||
| 11 | ${CC} helloworld.c -o helloworld | ||
| 12 | } | ||
| 13 | |||
| 14 | do_install() { | ||
| 15 | install -d ${D}${bindir} | ||
| 16 | install -m 0755 helloworld ${D}${bindir} | ||
| 17 | } | ||
diff --git a/documentation/ref-manual/examples/libxpm/libxpm_3.5.6.bb b/documentation/ref-manual/examples/libxpm/libxpm_3.5.6.bb new file mode 100644 index 0000000000..b58d4d7bd1 --- /dev/null +++ b/documentation/ref-manual/examples/libxpm/libxpm_3.5.6.bb | |||
| @@ -0,0 +1,14 @@ | |||
| 1 | require xorg-lib-common.inc | ||
| 2 | |||
| 3 | DESCRIPTION = "X11 Pixmap library" | ||
| 4 | LICENSE = "X-BSD" | ||
| 5 | LIC_FILES_CHKSUM = "file://COPYING;md5=3e07763d16963c3af12db271a31abaa5" | ||
| 6 | DEPENDS += "libxext" | ||
| 7 | PR = "r2" | ||
| 8 | PE = "1" | ||
| 9 | |||
| 10 | XORG_PN = "libXpm" | ||
| 11 | |||
| 12 | PACKAGES =+ "sxpm cxpm" | ||
| 13 | FILES_cxpm = "${bindir}/cxpm" | ||
| 14 | FILES_sxpm = "${bindir}/sxpm" | ||
diff --git a/documentation/ref-manual/examples/mtd-makefile/mtd-utils_1.0.0.bb b/documentation/ref-manual/examples/mtd-makefile/mtd-utils_1.0.0.bb new file mode 100644 index 0000000000..5d05a437a4 --- /dev/null +++ b/documentation/ref-manual/examples/mtd-makefile/mtd-utils_1.0.0.bb | |||
| @@ -0,0 +1,15 @@ | |||
| 1 | DESCRIPTION = "Tools for managing memory technology devices." | ||
| 2 | SECTION = "base" | ||
| 3 | DEPENDS = "zlib" | ||
| 4 | HOMEPAGE = "http://www.linux-mtd.infradead.org/" | ||
| 5 | LICENSE = "GPLv2" | ||
| 6 | LIC_FILES_CHKSUM = "file://COPYING;md5=0636e73ff0215e8d672dc4c32c317bb3 \ | ||
| 7 | file://include/common.h;beginline=1;endline=17;md5=ba05b07912a44ea2bf81ce409380049c" | ||
| 8 | |||
| 9 | SRC_URI = "ftp://ftp.infradead.org/pub/mtd-utils/mtd-utils-${PV}.tar.gz" | ||
| 10 | |||
| 11 | CFLAGS_prepend = "-I ${S}/include " | ||
| 12 | |||
| 13 | do_install() { | ||
| 14 | oe_runmake install DESTDIR=${D} | ||
| 15 | } | ||
diff --git a/documentation/ref-manual/faq.xml b/documentation/ref-manual/faq.xml new file mode 100644 index 0000000000..176573de28 --- /dev/null +++ b/documentation/ref-manual/faq.xml | |||
| @@ -0,0 +1,606 @@ | |||
| 1 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <chapter id='faq'> | ||
| 6 | <title>FAQ</title> | ||
| 7 | <qandaset> | ||
| 8 | <qandaentry> | ||
| 9 | <question> | ||
| 10 | <para> | ||
| 11 | How does Poky differ from <ulink url='&OE_HOME_URL;'>OpenEmbedded</ulink>? | ||
| 12 | </para> | ||
| 13 | </question> | ||
| 14 | <answer> | ||
| 15 | <para> | ||
| 16 | The term "Poky" refers to the specific reference build system that | ||
| 17 | the Yocto Project provides. | ||
| 18 | Poky is based on <ulink url='&YOCTO_DOCS_DEV_URL;#oe-core'>OE-Core</ulink> | ||
| 19 | and BitBake. | ||
| 20 | Thus, the generic term used here for the build system is | ||
| 21 | the "OpenEmbedded build system." | ||
| 22 | Development in the Yocto Project using Poky is closely tied to OpenEmbedded, with | ||
| 23 | changes always being merged to OE-Core or BitBake first before being pulled back | ||
| 24 | into Poky. | ||
| 25 | This practice benefits both projects immediately. | ||
| 26 | For a fuller description of the term "Poky", see the | ||
| 27 | <ulink url='&YOCTO_DOCS_DEV_URL;#poky'>poky</ulink> term in the Yocto Project | ||
| 28 | Development Manual. | ||
| 29 | </para> | ||
| 30 | </answer> | ||
| 31 | </qandaentry> | ||
| 32 | |||
| 33 | <qandaentry> | ||
| 34 | <question> | ||
| 35 | <para> | ||
| 36 | I only have Python 2.4 or 2.5 but BitBake requires Python 2.6 or 2.7. | ||
| 37 | Can I still use the Yocto Project? | ||
| 38 | </para> | ||
| 39 | </question> | ||
| 40 | <answer> | ||
| 41 | <para> | ||
| 42 | You can use a stand-alone tarball to provide Python 2.6. | ||
| 43 | You can find pre-built 32 and 64-bit versions of Python 2.6 at the following locations: | ||
| 44 | <itemizedlist> | ||
| 45 | <listitem><para><ulink url='&YOCTO_PYTHON-i686_DL_URL;'>32-bit tarball</ulink></para></listitem> | ||
| 46 | <listitem><para><ulink url='&YOCTO_PYTHON-x86_64_DL_URL;'>64-bit tarball</ulink></para></listitem> | ||
| 47 | </itemizedlist> | ||
| 48 | </para> | ||
| 49 | <para> | ||
| 50 | These tarballs are self-contained with all required libraries and should work | ||
| 51 | on most Linux systems. | ||
| 52 | To use the tarballs extract them into the root | ||
| 53 | directory and run the appropriate command: | ||
| 54 | <literallayout class='monospaced'> | ||
| 55 | $ export PATH=/opt/poky/sysroots/i586-pokysdk-linux/usr/bin/:$PATH | ||
| 56 | $ export PATH=/opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/:$PATH | ||
| 57 | </literallayout> | ||
| 58 | </para> | ||
| 59 | <para> | ||
| 60 | Once you run the command, BitBake uses Python 2.6. | ||
| 61 | </para> | ||
| 62 | </answer> | ||
| 63 | </qandaentry> | ||
| 64 | |||
| 65 | <qandaentry> | ||
| 66 | <question> | ||
| 67 | <para> | ||
| 68 | How can you claim Poky / OpenEmbedded-Core is stable? | ||
| 69 | </para> | ||
| 70 | </question> | ||
| 71 | <answer> | ||
| 72 | <para> | ||
| 73 | There are three areas that help with stability; | ||
| 74 | <itemizedlist> | ||
| 75 | <listitem><para>The Yocto Project team keeps | ||
| 76 | <ulink url='&YOCTO_DOCS_DEV_URL;#oe-core'>OE-Core</ulink> small | ||
| 77 | and focused, containing around 830 recipes as opposed to the thousands | ||
| 78 | available in other OpenEmbedded community layers. | ||
| 79 | Keeping it small makes it easy to test and maintain.</para></listitem> | ||
| 80 | <listitem><para>The Yocto Project team runs manual and automated tests | ||
| 81 | using a small, fixed set of reference hardware as well as emulated | ||
| 82 | targets.</para></listitem> | ||
| 83 | <listitem><para>The Yocto Project uses an an autobuilder, | ||
| 84 | which provides continuous build and integration tests.</para></listitem> | ||
| 85 | </itemizedlist> | ||
| 86 | </para> | ||
| 87 | </answer> | ||
| 88 | </qandaentry> | ||
| 89 | |||
| 90 | <qandaentry> | ||
| 91 | <question> | ||
| 92 | <para> | ||
| 93 | How do I get support for my board added to the Yocto Project? | ||
| 94 | </para> | ||
| 95 | </question> | ||
| 96 | <answer> | ||
| 97 | <para> | ||
| 98 | Support for an additional board is added by creating a BSP layer for it. | ||
| 99 | For more information on how to create a BSP layer, see the | ||
| 100 | <ulink url='&YOCTO_DOCS_BSP_URL;'>Yocto Project Board Support Package (BSP) Developer's Guide</ulink>. | ||
| 101 | </para> | ||
| 102 | <para> | ||
| 103 | Usually, if the board is not completely exotic, adding support in | ||
| 104 | the Yocto Project is fairly straightforward. | ||
| 105 | </para> | ||
| 106 | </answer> | ||
| 107 | </qandaentry> | ||
| 108 | |||
| 109 | <qandaentry> | ||
| 110 | <question> | ||
| 111 | <para> | ||
| 112 | Are there any products built using the OpenEmbedded build system? | ||
| 113 | </para> | ||
| 114 | </question> | ||
| 115 | <answer> | ||
| 116 | <para> | ||
| 117 | The software running on the <ulink url='http://vernier.com/labquest/'>Vernier LabQuest</ulink> | ||
| 118 | is built using the OpenEmbedded build system. | ||
| 119 | See the <ulink url='http://www.vernier.com/products/interfaces/labq/'>Vernier LabQuest</ulink> | ||
| 120 | website for more information. | ||
| 121 | There are a number of pre-production devices using the OpenEmbedded build system | ||
| 122 | and the Yocto Project team | ||
| 123 | announces them as soon as they are released. | ||
| 124 | </para> | ||
| 125 | </answer> | ||
| 126 | </qandaentry> | ||
| 127 | |||
| 128 | <qandaentry> | ||
| 129 | <question> | ||
| 130 | <para> | ||
| 131 | What does the OpenEmbedded build system produce as output? | ||
| 132 | </para> | ||
| 133 | </question> | ||
| 134 | <answer> | ||
| 135 | <para> | ||
| 136 | Because the same set of recipes can be used to create output of various formats, the | ||
| 137 | output of an OpenEmbedded build depends on how it was started. | ||
| 138 | Usually, the output is a flashable image ready for the target device. | ||
| 139 | </para> | ||
| 140 | </answer> | ||
| 141 | </qandaentry> | ||
| 142 | |||
| 143 | <qandaentry> | ||
| 144 | <question> | ||
| 145 | <para> | ||
| 146 | How do I add my package to the Yocto Project? | ||
| 147 | </para> | ||
| 148 | </question> | ||
| 149 | <answer> | ||
| 150 | <para> | ||
| 151 | To add a package, you need to create a BitBake recipe. | ||
| 152 | For information on how to add a package, see the section | ||
| 153 | "<ulink url='&YOCTO_DOCS_DEV_URL;#usingpoky-extend-addpkg'>Adding a Package</ulink>" | ||
| 154 | in the Yocto Project Development Manual. | ||
| 155 | </para> | ||
| 156 | </answer> | ||
| 157 | </qandaentry> | ||
| 158 | |||
| 159 | <qandaentry> | ||
| 160 | <question> | ||
| 161 | <para> | ||
| 162 | Do I have to reflash my entire board with a new Yocto Project image when recompiling | ||
| 163 | a package? | ||
| 164 | </para> | ||
| 165 | </question> | ||
| 166 | <answer> | ||
| 167 | <para> | ||
| 168 | The OpenEmbedded build system can build packages in various formats such as | ||
| 169 | <filename>ipk</filename> for <filename>opkg</filename>, | ||
| 170 | Debian package (<filename>.deb</filename>), or RPM. | ||
| 171 | The packages can then be upgraded using the package tools on the device, much like | ||
| 172 | on a desktop distribution such as Ubuntu or Fedora. | ||
| 173 | </para> | ||
| 174 | </answer> | ||
| 175 | </qandaentry> | ||
| 176 | |||
| 177 | <qandaentry> | ||
| 178 | <question> | ||
| 179 | <para> | ||
| 180 | What is GNOME Mobile and what is the difference between GNOME Mobile and GNOME? | ||
| 181 | </para> | ||
| 182 | </question> | ||
| 183 | <answer> | ||
| 184 | <para> | ||
| 185 | GNOME Mobile is a subset of the <ulink url='http://www.gnome.org'>GNOME</ulink> | ||
| 186 | platform targeted at mobile and embedded devices. | ||
| 187 | The the main difference between GNOME Mobile and standard GNOME is that | ||
| 188 | desktop-orientated libraries have been removed, along with deprecated libraries, | ||
| 189 | creating a much smaller footprint. | ||
| 190 | </para> | ||
| 191 | </answer> | ||
| 192 | </qandaentry> | ||
| 193 | |||
| 194 | <qandaentry> | ||
| 195 | <question> | ||
| 196 | <para> | ||
| 197 | I see the error '<filename>chmod: XXXXX new permissions are r-xrwxrwx, not r-xr-xr-x</filename>'. | ||
| 198 | What is wrong? | ||
| 199 | </para> | ||
| 200 | </question> | ||
| 201 | <answer> | ||
| 202 | <para> | ||
| 203 | You are probably running the build on an NTFS filesystem. | ||
| 204 | Use <filename>ext2</filename>, <filename>ext3</filename>, or <filename>ext4</filename> instead. | ||
| 205 | </para> | ||
| 206 | </answer> | ||
| 207 | </qandaentry> | ||
| 208 | |||
| 209 | <qandaentry> | ||
| 210 | <question> | ||
| 211 | <para> | ||
| 212 | How do I make the Yocto Project work in RHEL/CentOS? | ||
| 213 | </para> | ||
| 214 | </question> | ||
| 215 | <answer> | ||
| 216 | <para> | ||
| 217 | To get the Yocto Project working under RHEL/CentOS 5.1 you need to first | ||
| 218 | install some required packages. | ||
| 219 | The standard CentOS packages needed are: | ||
| 220 | <itemizedlist> | ||
| 221 | <listitem><para>"Development tools" (selected during installation)</para></listitem> | ||
| 222 | <listitem><para><filename>texi2html</filename></para></listitem> | ||
| 223 | <listitem><para><filename>compat-gcc-34</filename></para></listitem> | ||
| 224 | </itemizedlist> | ||
| 225 | On top of these, you need the following external packages: | ||
| 226 | <itemizedlist> | ||
| 227 | <listitem><para><filename>python-sqlite2</filename> from | ||
| 228 | <ulink url='http://dag.wieers.com/rpm/packages/python-sqlite2/'>DAG repository</ulink> | ||
| 229 | </para></listitem> | ||
| 230 | <listitem><para><filename>help2man</filename> from | ||
| 231 | <ulink url='http://centos.karan.org/el4/extras/stable/x86_64/RPMS/repodata/repoview/help2man-0-1.33.1-2.html'>Karan repository</ulink></para></listitem> | ||
| 232 | </itemizedlist> | ||
| 233 | </para> | ||
| 234 | |||
| 235 | <para> | ||
| 236 | Once these packages are installed, the OpenEmbedded build system will be able | ||
| 237 | to build standard images. | ||
| 238 | However, there might be a problem with the QEMU emulator segfaulting. | ||
| 239 | You can either disable the generation of binary locales by setting | ||
| 240 | <filename><link linkend='var-ENABLE_BINARY_LOCALE_GENERATION'>ENABLE_BINARY_LOCALE_GENERATION</link> | ||
| 241 | </filename> to "0" or by removing the <filename>linux-2.6-execshield.patch</filename> | ||
| 242 | from the kernel and rebuilding it since that is the patch that causes the problems with QEMU. | ||
| 243 | </para> | ||
| 244 | </answer> | ||
| 245 | </qandaentry> | ||
| 246 | |||
| 247 | <qandaentry> | ||
| 248 | <question> | ||
| 249 | <para> | ||
| 250 | I see lots of 404 responses for files on | ||
| 251 | <filename>http://www.yoctoproject.org/sources/*</filename>. Is something wrong? | ||
| 252 | </para> | ||
| 253 | </question> | ||
| 254 | <answer> | ||
| 255 | <para> | ||
| 256 | Nothing is wrong. | ||
| 257 | The OpenEmbedded build system checks any configured source mirrors before downloading | ||
| 258 | from the upstream sources. | ||
| 259 | The build system does this searching for both source archives and | ||
| 260 | pre-checked out versions of SCM managed software. | ||
| 261 | These checks help in large installations because it can reduce load on the SCM servers | ||
| 262 | themselves. | ||
| 263 | The address above is one of the default mirrors configured into the | ||
| 264 | build system. | ||
| 265 | Consequently, if an upstream source disappears, the team | ||
| 266 | can place sources there so builds continue to work. | ||
| 267 | </para> | ||
| 268 | </answer> | ||
| 269 | </qandaentry> | ||
| 270 | |||
| 271 | <qandaentry> | ||
| 272 | <question> | ||
| 273 | <para> | ||
| 274 | I have machine-specific data in a package for one machine only but the package is | ||
| 275 | being marked as machine-specific in all cases, how do I prevent this? | ||
| 276 | </para> | ||
| 277 | </question> | ||
| 278 | <answer> | ||
| 279 | <para> | ||
| 280 | Set <filename><link linkend='var-SRC_URI_OVERRIDES_PACKAGE_ARCH'>SRC_URI_OVERRIDES_PACKAGE_ARCH</link> | ||
| 281 | </filename> = "0" in the <filename>.bb</filename> file but make sure the package is | ||
| 282 | manually marked as | ||
| 283 | machine-specific in the case that needs it. | ||
| 284 | The code that handles <filename>SRC_URI_OVERRIDES_PACKAGE_ARCH</filename> is in <filename>base.bbclass</filename>. | ||
| 285 | </para> | ||
| 286 | </answer> | ||
| 287 | </qandaentry> | ||
| 288 | |||
| 289 | <qandaentry> | ||
| 290 | <question> | ||
| 291 | <para> | ||
| 292 | I'm behind a firewall and need to use a proxy server. How do I do that? | ||
| 293 | </para> | ||
| 294 | </question> | ||
| 295 | <answer> | ||
| 296 | <para> | ||
| 297 | Most source fetching by the OpenEmbedded build system is done by <filename>wget</filename> | ||
| 298 | and you therefore need to specify the proxy settings in a | ||
| 299 | <filename>.wgetrc</filename> file in your home directory. | ||
| 300 | Example settings in that file would be | ||
| 301 | <literallayout class='monospaced'> | ||
| 302 | http_proxy = http://proxy.yoyodyne.com:18023/ | ||
| 303 | ftp_proxy = http://proxy.yoyodyne.com:18023/ | ||
| 304 | </literallayout> | ||
| 305 | The Yocto Project also includes a <filename>site.conf.sample</filename> | ||
| 306 | file that shows how to configure CVS and Git proxy servers | ||
| 307 | if needed. | ||
| 308 | </para> | ||
| 309 | </answer> | ||
| 310 | </qandaentry> | ||
| 311 | |||
| 312 | <qandaentry> | ||
| 313 | <question> | ||
| 314 | <para> | ||
| 315 | What’s the difference between <filename>foo</filename> and <filename>foo-native</filename>? | ||
| 316 | </para> | ||
| 317 | </question> | ||
| 318 | <answer> | ||
| 319 | <para> | ||
| 320 | The <filename>*-native</filename> targets are designed to run on the system | ||
| 321 | being used for the build. | ||
| 322 | These are usually tools that are needed to assist the build in some way such as | ||
| 323 | <filename>quilt-native</filename>, which is used to apply patches. | ||
| 324 | The non-native version is the one that runs on the target device. | ||
| 325 | </para> | ||
| 326 | </answer> | ||
| 327 | </qandaentry> | ||
| 328 | |||
| 329 | <qandaentry> | ||
| 330 | <question> | ||
| 331 | <para> | ||
| 332 | I'm seeing random build failures. Help?! | ||
| 333 | </para> | ||
| 334 | </question> | ||
| 335 | <answer> | ||
| 336 | <para> | ||
| 337 | If the same build is failing in totally different and random ways, | ||
| 338 | the most likely explanation is that either the hardware you're running the | ||
| 339 | build on has some problem, or, if you are running the build under virtualisation, | ||
| 340 | the virtualisation probably has bugs. | ||
| 341 | The OpenEmbedded build system processes a massive amount of data causing lots of network, disk and | ||
| 342 | CPU activity and is sensitive to even single bit failures in any of these areas. | ||
| 343 | True random failures have always been traced back to hardware or virtualisation issues. | ||
| 344 | </para> | ||
| 345 | </answer> | ||
| 346 | </qandaentry> | ||
| 347 | |||
| 348 | <qandaentry> | ||
| 349 | <question> | ||
| 350 | <para> | ||
| 351 | What do we need to ship for license compliance? | ||
| 352 | </para> | ||
| 353 | </question> | ||
| 354 | <answer> | ||
| 355 | <para> | ||
| 356 | This is a difficult question and you need to consult your lawyer for the answer | ||
| 357 | for your specific case. | ||
| 358 | It is worth bearing in mind that for GPL compliance there needs to be enough | ||
| 359 | information shipped to allow someone else to rebuild the same end result | ||
| 360 | you are shipping. | ||
| 361 | This means sharing the source code, any patches applied to it, and also any | ||
| 362 | configuration information about how that package was configured and built. | ||
| 363 | </para> | ||
| 364 | </answer> | ||
| 365 | </qandaentry> | ||
| 366 | |||
| 367 | <qandaentry> | ||
| 368 | <question> | ||
| 369 | <para> | ||
| 370 | How do I disable the cursor on my touchscreen device? | ||
| 371 | </para> | ||
| 372 | </question> | ||
| 373 | <answer> | ||
| 374 | <para> | ||
| 375 | You need to create a form factor file as described in the | ||
| 376 | "<ulink url='&YOCTO_DOCS_BSP_URL;#bsp-filelayout-misc-recipes'>Miscellaneous Recipe Files</ulink>" | ||
| 377 | section and set the <filename>HAVE_TOUCHSCREEN</filename> variable equal to one as follows: | ||
| 378 | <literallayout class='monospaced'> | ||
| 379 | HAVE_TOUCHSCREEN=1 | ||
| 380 | </literallayout> | ||
| 381 | </para> | ||
| 382 | </answer> | ||
| 383 | </qandaentry> | ||
| 384 | |||
| 385 | <qandaentry> | ||
| 386 | <question> | ||
| 387 | <para> | ||
| 388 | How do I make sure connected network interfaces are brought up by default? | ||
| 389 | </para> | ||
| 390 | </question> | ||
| 391 | <answer> | ||
| 392 | <para> | ||
| 393 | The default interfaces file provided by the netbase recipe does not | ||
| 394 | automatically bring up network interfaces. | ||
| 395 | Therefore, you will need to add a BSP-specific netbase that includes an interfaces | ||
| 396 | file. | ||
| 397 | See the "<ulink url='&YOCTO_DOCS_BSP_URL;#bsp-filelayout-misc-recipes'>Miscellaneous Recipe Files</ulink>" | ||
| 398 | section for information on creating these types of miscellaneous recipe files. | ||
| 399 | </para> | ||
| 400 | <para> | ||
| 401 | For example, add the following files to your layer: | ||
| 402 | <literallayout class='monospaced'> | ||
| 403 | meta-MACHINE/recipes-bsp/netbase/netbase/MACHINE/interfaces | ||
| 404 | meta-MACHINE/recipes-bsp/netbase/netbase_5.0.bbappend | ||
| 405 | </literallayout> | ||
| 406 | </para> | ||
| 407 | </answer> | ||
| 408 | </qandaentry> | ||
| 409 | |||
| 410 | <qandaentry> | ||
| 411 | <question> | ||
| 412 | <para> | ||
| 413 | How do I create images with more free space? | ||
| 414 | </para> | ||
| 415 | </question> | ||
| 416 | <answer> | ||
| 417 | <para> | ||
| 418 | Images are created to be 1.2 times the size of the populated root filesystem. | ||
| 419 | To modify this ratio so that there is more free space available, you need to | ||
| 420 | set the configuration value <filename>IMAGE_OVERHEAD_FACTOR</filename>. | ||
| 421 | For example, setting <filename>IMAGE_OVERHEAD_FACTOR</filename> to 1.5 sets | ||
| 422 | the image size ratio to one and a half times the size of the populated | ||
| 423 | root filesystem. | ||
| 424 | <literallayout class='monospaced'> | ||
| 425 | IMAGE_OVERHEAD_FACTOR = "1.5" | ||
| 426 | </literallayout> | ||
| 427 | </para> | ||
| 428 | </answer> | ||
| 429 | </qandaentry> | ||
| 430 | |||
| 431 | <qandaentry> | ||
| 432 | <question> | ||
| 433 | <para> | ||
| 434 | Why don't you support directories with spaces in the pathnames? | ||
| 435 | </para> | ||
| 436 | </question> | ||
| 437 | <answer> | ||
| 438 | <para> | ||
| 439 | The Yocto Project team has tried to do this before but too many of the tools | ||
| 440 | the OpenEmbedded build system depends on such as <filename>autoconf</filename> | ||
| 441 | break when they find spaces in pathnames. | ||
| 442 | Until that situation changes, the team will not support spaces in pathnames. | ||
| 443 | </para> | ||
| 444 | </answer> | ||
| 445 | </qandaentry> | ||
| 446 | |||
| 447 | <qandaentry> | ||
| 448 | <question> | ||
| 449 | <para> | ||
| 450 | How do I use an external toolchain? | ||
| 451 | </para> | ||
| 452 | </question> | ||
| 453 | <answer> | ||
| 454 | <para> | ||
| 455 | The toolchain configuration is very flexible and customizable. | ||
| 456 | It is primarily controlled with the | ||
| 457 | <filename><link linkend='var-TCMODE'>TCMODE</link></filename> variable. | ||
| 458 | This variable controls which <filename>tcmode-*.inc</filename> file to include | ||
| 459 | from the <filename>meta/conf/distro/include</filename> directory within the | ||
| 460 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>source directory</ulink>. | ||
| 461 | </para> | ||
| 462 | |||
| 463 | <para> | ||
| 464 | The default value of <filename>TCMODE</filename> is "default" | ||
| 465 | (i.e. <filename>tcmode-default.inc</filename>). | ||
| 466 | However, other patterns are accepted. | ||
| 467 | In particular, "external-*" refers to external toolchains of which there are some | ||
| 468 | basic examples included in the OpenEmbedded Core (<filename>meta</filename>). | ||
| 469 | You can use your own custom toolchain definition in your own layer | ||
| 470 | (or as defined in the <filename>local.conf</filename> file) at the location | ||
| 471 | <filename>conf/distro/include/tcmode-*.inc</filename>. | ||
| 472 | </para> | ||
| 473 | |||
| 474 | <para> | ||
| 475 | In addition to the toolchain configuration, you also need a corresponding toolchain recipe file. | ||
| 476 | This recipe file needs to package up any pre-built objects in the toolchain such as | ||
| 477 | <filename>libgcc</filename>, <filename>libstdcc++</filename>, | ||
| 478 | any locales, and <filename>libc</filename>. | ||
| 479 | An example is the <filename>external-sourcery-toolchain.bb</filename>, which is located | ||
| 480 | in <filename>meta/recipes-core/meta/</filename> within the source directory. | ||
| 481 | </para> | ||
| 482 | </answer> | ||
| 483 | </qandaentry> | ||
| 484 | |||
| 485 | <qandaentry> | ||
| 486 | <question> | ||
| 487 | <para id='how-does-the-yocto-project-obtain-source-code-and-will-it-work-behind-my-firewall-or-proxy-server'> | ||
| 488 | How does the OpenEmbedded build system obtain source code and will it work behind my | ||
| 489 | firewall or proxy server? | ||
| 490 | </para> | ||
| 491 | </question> | ||
| 492 | <answer> | ||
| 493 | <para> | ||
| 494 | The way the build system obtains source code is highly configurable. | ||
| 495 | You can setup the build system to get source code in most environments if | ||
| 496 | HTTP transport is available. | ||
| 497 | </para> | ||
| 498 | <para> | ||
| 499 | When the build system searches for source code, it first tries the local download directory. | ||
| 500 | If that location fails, Poky tries PREMIRRORS, the upstream source, | ||
| 501 | and then MIRRORS in that order. | ||
| 502 | </para> | ||
| 503 | <para> | ||
| 504 | By default, the OpenEmbedded build system uses the Yocto Project source PREMIRRORS | ||
| 505 | for SCM-based sources, | ||
| 506 | upstreams for normal tarballs, and then falls back to a number of other mirrors | ||
| 507 | including the Yocto Project source mirror if those fail. | ||
| 508 | </para> | ||
| 509 | <para> | ||
| 510 | As an example, you could add a specific server for Poky to attempt before any | ||
| 511 | others by adding something like the following to the <filename>local.conf</filename> | ||
| 512 | configuration file: | ||
| 513 | <literallayout class='monospaced'> | ||
| 514 | PREMIRRORS_prepend = "\ | ||
| 515 | git://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 516 | ftp://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 517 | http://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 518 | https://.*/.* http://www.yoctoproject.org/sources/ \n" | ||
| 519 | </literallayout> | ||
| 520 | </para> | ||
| 521 | <para> | ||
| 522 | These changes cause Poky to intercept Git, FTP, HTTP, and HTTPS | ||
| 523 | requests and direct them to the <filename>http://</filename> sources mirror. | ||
| 524 | You can use <filename>file://</filename> URLs to point to local directories | ||
| 525 | or network shares as well. | ||
| 526 | </para> | ||
| 527 | <para> | ||
| 528 | Aside from the previous technique, these options also exist: | ||
| 529 | <literallayout class='monospaced'> | ||
| 530 | BB_NO_NETWORK = "1" | ||
| 531 | </literallayout> | ||
| 532 | This statement tells BitBake to throw an error instead of trying to access the | ||
| 533 | Internet. | ||
| 534 | This technique is useful if you want to ensure code builds only from local sources. | ||
| 535 | </para> | ||
| 536 | <para> | ||
| 537 | Here is another technique: | ||
| 538 | <literallayout class='monospaced'> | ||
| 539 | BB_FETCH_PREMIRRORONLY = "1" | ||
| 540 | </literallayout> | ||
| 541 | This statement limits Poky to pulling source from the PREMIRRORS only. | ||
| 542 | Again, this technique is useful for reproducing builds. | ||
| 543 | </para> | ||
| 544 | <para> | ||
| 545 | Here is another technique: | ||
| 546 | <literallayout class='monospaced'> | ||
| 547 | BB_GENERATE_MIRROR_TARBALLS = "1" | ||
| 548 | </literallayout> | ||
| 549 | This statement tells Poky to generate mirror tarballs. | ||
| 550 | This technique is useful if you want to create a mirror server. | ||
| 551 | If not, however, the technique can simply waste time during the build. | ||
| 552 | </para> | ||
| 553 | <para> | ||
| 554 | Finally, consider an example where you are behind an HTTP-only firewall. | ||
| 555 | You could make the following changes to the <filename>local.conf</filename> | ||
| 556 | configuration file as long as the PREMIRROR server is up to date: | ||
| 557 | <literallayout class='monospaced'> | ||
| 558 | PREMIRRORS_prepend = "\ | ||
| 559 | ftp://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 560 | http://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 561 | https://.*/.* http://www.yoctoproject.org/sources/ \n" | ||
| 562 | BB_FETCH_PREMIRRORONLY = "1" | ||
| 563 | </literallayout> | ||
| 564 | These changes would cause Poky to successfully fetch source over HTTP and | ||
| 565 | any network accesses to anything other than the PREMIRROR would fail. | ||
| 566 | </para> | ||
| 567 | <para> | ||
| 568 | The build system also honors the standard shell environment variables | ||
| 569 | <filename>http_proxy</filename>, <filename>ftp_proxy</filename>, | ||
| 570 | <filename>https_proxy</filename>, and <filename>all_proxy</filename> | ||
| 571 | to redirect requests through proxy servers. | ||
| 572 | </para> | ||
| 573 | </answer> | ||
| 574 | </qandaentry> | ||
| 575 | |||
| 576 | <qandaentry> | ||
| 577 | <question> | ||
| 578 | <para> | ||
| 579 | Can I get rid of build output so I can start over? | ||
| 580 | </para> | ||
| 581 | </question> | ||
| 582 | <answer> | ||
| 583 | <para> | ||
| 584 | Yes - you can easily do this. | ||
| 585 | When you use BitBake to build an image, all the build output goes into the | ||
| 586 | directory created when you source the <filename>oe-init-build-env</filename> | ||
| 587 | setup file. | ||
| 588 | By default, this <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>build directory</ulink> | ||
| 589 | is named <filename>build</filename> but can be named | ||
| 590 | anything you want. | ||
| 591 | </para> | ||
| 592 | |||
| 593 | <para> | ||
| 594 | Within the build directory is the <filename>tmp</filename> directory. | ||
| 595 | To remove all the build output yet preserve any source code or downloaded files | ||
| 596 | from previous builds, simply remove the <filename>tmp</filename> directory. | ||
| 597 | </para> | ||
| 598 | </answer> | ||
| 599 | </qandaentry> | ||
| 600 | |||
| 601 | |||
| 602 | </qandaset> | ||
| 603 | </chapter> | ||
| 604 | <!-- | ||
| 605 | vim: expandtab tw=80 ts=4 | ||
| 606 | --> | ||
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| 1 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <chapter id='intro'> | ||
| 6 | <title>Introduction</title> | ||
| 7 | |||
| 8 | <section id='intro-welcome'> | ||
| 9 | <title>Introduction</title> | ||
| 10 | |||
| 11 | <para> | ||
| 12 | This manual provides reference information for the current release of the Yocto Project. | ||
| 13 | The Yocto Project is an open-source collaboration project focused on embedded Linux | ||
| 14 | developers. | ||
| 15 | Amongst other things, the Yocto Project uses the OpenEmbedded build system, which | ||
| 16 | is based on the Poky project, to construct complete Linux images. | ||
| 17 | You can find complete introductory and getting started information on the Yocto Project | ||
| 18 | by reading the | ||
| 19 | <ulink url='&YOCTO_DOCS_QS_URL;'>Yocto Project Quick Start</ulink>. | ||
| 20 | For task-based information using the Yocto Project, see the | ||
| 21 | <ulink url='&YOCTO_DOCS_DEV_URL;'>Yocto Project Development Manual</ulink>. | ||
| 22 | You can also find lots of information on the Yocto Project on the | ||
| 23 | <ulink url="&YOCTO_HOME_URL;">Yocto Project website</ulink>. | ||
| 24 | </para> | ||
| 25 | </section> | ||
| 26 | |||
| 27 | <section id='intro-manualoverview'> | ||
| 28 | <title>Documentation Overview</title> | ||
| 29 | <para> | ||
| 30 | This reference manual consists of the following: | ||
| 31 | <itemizedlist> | ||
| 32 | <listitem><para><emphasis> | ||
| 33 | <link linkend='usingpoky'>Using the Yocto Project</link>:</emphasis> This chapter | ||
| 34 | provides an overview of the components that make up the Yocto Project | ||
| 35 | followed by information about debugging images created in the Yocto Project. | ||
| 36 | </para></listitem> | ||
| 37 | <listitem><para><emphasis> | ||
| 38 | <link linkend='technical-details'>Technical Details</link>:</emphasis> | ||
| 39 | This chapter describes fundamental Yocto Project components as well as an explanation | ||
| 40 | behind how the Yocto Project uses shared state (sstate) cache to speed build time. | ||
| 41 | </para></listitem> | ||
| 42 | <listitem><para><emphasis> | ||
| 43 | <link linkend='ref-structure'>Directory Structure</link>:</emphasis> | ||
| 44 | This chapter describes the | ||
| 45 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>source directory</ulink> created | ||
| 46 | either by unpacking a released Yocto Project tarball on your host development system, | ||
| 47 | or by cloning the upstream | ||
| 48 | <ulink url='&YOCTO_DOCS_DEV_URL;#poky'>Poky</ulink> Git repository. | ||
| 49 | </para></listitem> | ||
| 50 | <listitem><para><emphasis> | ||
| 51 | <link linkend='ref-bitbake'>BitBake</link>:</emphasis> | ||
| 52 | This chapter provides an overview of the BitBake tool and its role within | ||
| 53 | the Yocto Project.</para></listitem> | ||
| 54 | <listitem><para><emphasis> | ||
| 55 | <link linkend='ref-classes'>Classes</link>:</emphasis> | ||
| 56 | This chapter describes the classes used in the Yocto Project.</para></listitem> | ||
| 57 | <listitem><para><emphasis> | ||
| 58 | <link linkend='ref-images'>Images</link>:</emphasis> | ||
| 59 | This chapter describes the standard images that the Yocto Project supports. | ||
| 60 | </para></listitem> | ||
| 61 | <listitem><para><emphasis> | ||
| 62 | <link linkend='ref-features'>Features</link>:</emphasis> | ||
| 63 | This chapter describes mechanisms for creating distribution, machine, and image | ||
| 64 | features during the build process using the OpenEmbedded build system.</para></listitem> | ||
| 65 | <listitem><para><emphasis> | ||
| 66 | <link linkend='ref-variables-glos'>Variables Glossary</link>:</emphasis> | ||
| 67 | This chapter presents most variables used by the OpenEmbedded build system, which | ||
| 68 | using BitBake. | ||
| 69 | Entries describe the function of the variable and how to apply them. | ||
| 70 | </para></listitem> | ||
| 71 | <listitem><para><emphasis> | ||
| 72 | <link linkend='ref-varlocality'>Variable Context</link>:</emphasis> | ||
| 73 | This chapter provides variable locality or context.</para></listitem> | ||
| 74 | <listitem><para><emphasis> | ||
| 75 | <link linkend='faq'>FAQ</link>:</emphasis> | ||
| 76 | This chapter provides answers for commonly asked questions in the Yocto Project | ||
| 77 | development environment.</para></listitem> | ||
| 78 | <listitem><para><emphasis> | ||
| 79 | <link linkend='resources'>Contributing to the Yocto Project</link>:</emphasis> | ||
| 80 | This chapter provides guidance on how you can contribute back to the Yocto | ||
| 81 | Project.</para></listitem> | ||
| 82 | </itemizedlist> | ||
| 83 | </para> | ||
| 84 | </section> | ||
| 85 | |||
| 86 | |||
| 87 | <section id='intro-requirements'> | ||
| 88 | <title>System Requirements</title> | ||
| 89 | <para> | ||
| 90 | For general Yocto Project system requirements, see the | ||
| 91 | "<ulink url='&YOCTO_DOCS_QS_URL;#yp-resources'>What You Need and How You Get It</ulink>" section | ||
| 92 | in the Yocto Project Quick Start. | ||
| 93 | The remainder of this section provides details on system requirements | ||
| 94 | not covered in the Yocto Project Quick Start. | ||
| 95 | </para> | ||
| 96 | |||
| 97 | <section id='detailed-supported-distros'> | ||
| 98 | <title>Supported Linux Distributions</title> | ||
| 99 | |||
| 100 | <para> | ||
| 101 | Currently, the Yocto Project is supported on the following distributions: | ||
| 102 | <itemizedlist> | ||
| 103 | <listitem><para>Ubuntu 10.04.4 LTS</para></listitem> | ||
| 104 | <listitem><para>Ubuntu 11.10</para></listitem> | ||
| 105 | <listitem><para>Ubuntu 12.04.1 LTS</para></listitem> | ||
| 106 | <listitem><para>Ubuntu 12.04.1 LTS</para></listitem> | ||
| 107 | <listitem><para>Ubuntu 12.10</para></listitem> | ||
| 108 | <listitem><para>Fedora release 16 (Verne)</para></listitem> | ||
| 109 | <listitem><para>Fedora release 17 (Beefy Miracle)</para></listitem> | ||
| 110 | <listitem><para>Fedora release 18 (Spherical Cow)</para></listitem> | ||
| 111 | <listitem><para>CentOS release 5.6 (Final)</para></listitem> | ||
| 112 | <listitem><para>CentOS release 5.7 (Final)</para></listitem> | ||
| 113 | <listitem><para>CentOS release 5.8 (Final)</para></listitem> | ||
| 114 | <listitem><para>CentOS release 6.3 (Final)</para></listitem> | ||
| 115 | <listitem><para>Debian GNU/Linux 6.0.6 (squeeze)</para></listitem> | ||
| 116 | <listitem><para>openSUSE 11.4</para></listitem> | ||
| 117 | <listitem><para>openSUSE 12.1</para></listitem> | ||
| 118 | <listitem><para>openSUSE 12.2</para></listitem> | ||
| 119 | </itemizedlist> | ||
| 120 | </para> | ||
| 121 | |||
| 122 | <note> | ||
| 123 | For additional information on distributions that support the | ||
| 124 | Yocto Project, see the | ||
| 125 | <ulink url='&YOCTO_WIKI_URL;/wiki/Distribution_Support'>Distribution Support</ulink> wiki page. | ||
| 126 | </note> | ||
| 127 | </section> | ||
| 128 | |||
| 129 | <section id='required-packages-for-the-host-development-system'> | ||
| 130 | <title>Required Packages for the Host Development System</title> | ||
| 131 | |||
| 132 | <para> | ||
| 133 | The list of packages you need on the host development system can | ||
| 134 | be large when covering all build scenarios using the Yocto Project. | ||
| 135 | This section provides required packages by Linux distribution and | ||
| 136 | further categorized by function. | ||
| 137 | </para> | ||
| 138 | |||
| 139 | <section id='ubuntu-packages'> | ||
| 140 | <title>Ubuntu</title> | ||
| 141 | |||
| 142 | <para> | ||
| 143 | The following list shows the required packages by function | ||
| 144 | given a supported Ubuntu Linux distribution: | ||
| 145 | <itemizedlist> | ||
| 146 | <listitem><para><emphasis>Essentials:</emphasis> | ||
| 147 | Packages needed to build an image on a headless | ||
| 148 | system: | ||
| 149 | <literallayout class='monospaced'> | ||
| 150 | $ sudo apt-get install &UBUNTU_HOST_PACKAGES_ESSENTIAL; | ||
| 151 | </literallayout></para></listitem> | ||
| 152 | <listitem><para><emphasis>Graphical Extras:</emphasis> | ||
| 153 | Packages recommended if the host system has graphics support: | ||
| 154 | <literallayout class='monospaced'> | ||
| 155 | $ sudo apt-get install libsdl1.2-dev xterm | ||
| 156 | </literallayout></para></listitem> | ||
| 157 | <listitem><para><emphasis>Documentation:</emphasis> | ||
| 158 | Packages needed if you are going to build out the | ||
| 159 | Yocto Project documentation manuals: | ||
| 160 | <literallayout class='monospaced'> | ||
| 161 | $ sudo apt-get install make xsltproc docbook-utils fop | ||
| 162 | </literallayout></para></listitem> | ||
| 163 | <listitem><para><emphasis>ADT Installer Extras:</emphasis> | ||
| 164 | Packages needed if you are going to be using the | ||
| 165 | <ulink url='&YOCTO_DOCS_ADT_URL;#using-the-adt-installer'>Application Development Toolkit (ADT) Installer</ulink>: | ||
| 166 | <literallayout class='monospaced'> | ||
| 167 | $ sudo apt-get install autoconf automake libtool libglib2.0-dev | ||
| 168 | </literallayout></para></listitem> | ||
| 169 | </itemizedlist> | ||
| 170 | </para> | ||
| 171 | </section> | ||
| 172 | |||
| 173 | <section id='fedora-packages'> | ||
| 174 | <title>Fedora Packages</title> | ||
| 175 | |||
| 176 | <para> | ||
| 177 | The following list shows the required packages by function | ||
| 178 | given a supported Fedora Linux distribution: | ||
| 179 | <itemizedlist> | ||
| 180 | <listitem><para><emphasis>Essentials:</emphasis> | ||
| 181 | Packages needed to build an image for a headless | ||
| 182 | system: | ||
| 183 | <literallayout class='monospaced'> | ||
| 184 | $ sudo yum install &FEDORA_HOST_PACKAGES_ESSENTIAL; | ||
| 185 | </literallayout></para></listitem> | ||
| 186 | <listitem><para><emphasis>Graphical Extras:</emphasis> | ||
| 187 | Packages recommended if the host system has graphics support: | ||
| 188 | <literallayout class='monospaced'> | ||
| 189 | $ sudo yum install SDL-devel xterm | ||
| 190 | </literallayout></para></listitem> | ||
| 191 | <listitem><para><emphasis>Documentation:</emphasis> | ||
| 192 | Packages needed if you are going to build out the | ||
| 193 | Yocto Project documentation manuals: | ||
| 194 | <literallayout class='monospaced'> | ||
| 195 | $ sudo yum install make docbook-style-dsssl docbook-style-xsl \ | ||
| 196 | docbook-dtds docbook-utils fop libxslt | ||
| 197 | </literallayout></para></listitem> | ||
| 198 | <listitem><para><emphasis>ADT Installer Extras:</emphasis> | ||
| 199 | Packages needed if you are going to be using the | ||
| 200 | <ulink url='&YOCTO_DOCS_ADT_URL;#using-the-adt-installer'>Application Development Toolkit (ADT) Installer</ulink>: | ||
| 201 | <literallayout class='monospaced'> | ||
| 202 | $ sudo yum install autoconf automake libtool glib2-devel | ||
| 203 | </literallayout></para></listitem> | ||
| 204 | </itemizedlist> | ||
| 205 | </para> | ||
| 206 | </section> | ||
| 207 | |||
| 208 | <section id='opensuse-packages'> | ||
| 209 | <title>OpenSUSE Packages</title> | ||
| 210 | |||
| 211 | <para> | ||
| 212 | The following list shows the required packages by function | ||
| 213 | given a supported OpenSUSE Linux distribution: | ||
| 214 | <itemizedlist> | ||
| 215 | <listitem><para><emphasis>Essentials:</emphasis> | ||
| 216 | Packages needed to build an image for a headless | ||
| 217 | system: | ||
| 218 | <literallayout class='monospaced'> | ||
| 219 | $ sudo zypper install &OPENSUSE_HOST_PACKAGES_ESSENTIAL; | ||
| 220 | </literallayout></para></listitem> | ||
| 221 | <listitem><para><emphasis>Graphical Extras:</emphasis> | ||
| 222 | Packages recommended if the host system has graphics support: | ||
| 223 | <literallayout class='monospaced'> | ||
| 224 | $ sudo zypper install libSDL-devel xterm | ||
| 225 | </literallayout></para></listitem> | ||
| 226 | <listitem><para><emphasis>Documentation:</emphasis> | ||
| 227 | Packages needed if you are going to build out the | ||
| 228 | Yocto Project documentation manuals: | ||
| 229 | <literallayout class='monospaced'> | ||
| 230 | $ sudo zypper install make fop xsltproc | ||
| 231 | </literallayout></para></listitem> | ||
| 232 | <listitem><para><emphasis>ADT Installer Extras:</emphasis> | ||
| 233 | Packages needed if you are going to be using the | ||
| 234 | <ulink url='&YOCTO_DOCS_ADT_URL;#using-the-adt-installer'>Application Development Toolkit (ADT) Installer</ulink>: | ||
| 235 | <literallayout class='monospaced'> | ||
| 236 | $ sudo zypper install autoconf automake libtool glib2-devel | ||
| 237 | </literallayout></para></listitem> | ||
| 238 | </itemizedlist> | ||
| 239 | </para> | ||
| 240 | </section> | ||
| 241 | |||
| 242 | <section id='centos-packages'> | ||
| 243 | <title>CentOS Packages</title> | ||
| 244 | |||
| 245 | <para> | ||
| 246 | The following list shows the required packages by function | ||
| 247 | given a supported CentOS Linux distribution: | ||
| 248 | <itemizedlist> | ||
| 249 | <listitem><para><emphasis>Essentials:</emphasis> | ||
| 250 | Packages needed to build an image for a headless | ||
| 251 | system: | ||
| 252 | <literallayout class='monospaced'> | ||
| 253 | $ sudo yum -y install &CENTOS_HOST_PACKAGES_ESSENTIAL; | ||
| 254 | </literallayout></para></listitem> | ||
| 255 | <listitem><para><emphasis>Graphical Extras:</emphasis> | ||
| 256 | Packages recommended if the host system has graphics support: | ||
| 257 | <literallayout class='monospaced'> | ||
| 258 | $ sudo yum -y install SDL-devel xterm | ||
| 259 | </literallayout></para></listitem> | ||
| 260 | <listitem><para><emphasis>Documentation:</emphasis> | ||
| 261 | Packages needed if you are going to build out the | ||
| 262 | Yocto Project documentation manuals: | ||
| 263 | <literallayout class='monospaced'> | ||
| 264 | $ sudo yum -y install make docbook-style-dsssl docbook-style-xsl \ | ||
| 265 | docbook-dtds docbook-utils fop libxslt | ||
| 266 | </literallayout></para></listitem> | ||
| 267 | <listitem><para><emphasis>ADT Installer Extras:</emphasis> | ||
| 268 | Packages needed if you are going to be using the | ||
| 269 | <ulink url='&YOCTO_DOCS_ADT_URL;#using-the-adt-installer'>Application Development Toolkit (ADT) Installer</ulink>: | ||
| 270 | <literallayout class='monospaced'> | ||
| 271 | $ sudo yum -y install autoconf automake libtool glib2-devel | ||
| 272 | </literallayout></para></listitem> | ||
| 273 | </itemizedlist> | ||
| 274 | <note>Depending on the CentOS version you are using, other requirements | ||
| 275 | and dependencies might exist. | ||
| 276 | For details, you should look at the CentOS sections on the | ||
| 277 | <ulink url='https://wiki.yoctoproject.org/wiki/Poky/GettingStarted/Dependencies'>Poky/GettingStarted/Dependencies</ulink> | ||
| 278 | wiki page.</note> | ||
| 279 | </para> | ||
| 280 | </section> | ||
| 281 | </section> | ||
| 282 | </section> | ||
| 283 | |||
| 284 | <section id='intro-getit'> | ||
| 285 | <title>Obtaining the Yocto Project</title> | ||
| 286 | <para> | ||
| 287 | The Yocto Project development team makes the Yocto Project available through a number | ||
| 288 | of methods: | ||
| 289 | <itemizedlist> | ||
| 290 | <listitem><para><emphasis>Releases:</emphasis> Stable, tested releases are available through | ||
| 291 | <ulink url='&YOCTO_DL_URL;/releases/yocto/'/>.</para></listitem> | ||
| 292 | <listitem><para><emphasis>Nightly Builds:</emphasis> These releases are available at | ||
| 293 | <ulink url='http://autobuilder.yoctoproject.org/nightly'/>. | ||
| 294 | These builds include Yocto Project releases, meta-toolchain tarball installation scripts, and | ||
| 295 | experimental builds.</para></listitem> | ||
| 296 | <listitem><para><emphasis>Yocto Project Website:</emphasis> You can find releases | ||
| 297 | of the Yocto Project and supported BSPs at the | ||
| 298 | <ulink url='&YOCTO_HOME_URL;'>Yocto Project website</ulink>. | ||
| 299 | Along with these downloads, you can find lots of other information at this site. | ||
| 300 | </para></listitem> | ||
| 301 | </itemizedlist> | ||
| 302 | </para> | ||
| 303 | </section> | ||
| 304 | |||
| 305 | <section id='intro-getit-dev'> | ||
| 306 | <title>Development Checkouts</title> | ||
| 307 | <para> | ||
| 308 | Development using the Yocto Project requires a local | ||
| 309 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 310 | You can set up the source directory by downloading a Yocto Project release tarball and unpacking it, | ||
| 311 | or by cloning a copy of the upstream | ||
| 312 | <ulink url='&YOCTO_DOCS_DEV_URL;#poky'>Poky</ulink> Git repository. | ||
| 313 | For information on both these methods, see the | ||
| 314 | "<ulink url='&YOCTO_DOCS_DEV_URL;#getting-setup'>Getting Setup</ulink>" | ||
| 315 | section in the Yocto Project Development Manual. | ||
| 316 | </para> | ||
| 317 | </section> | ||
| 318 | |||
| 319 | </chapter> | ||
| 320 | <!-- | ||
| 321 | vim: expandtab tw=80 ts=4 | ||
| 322 | --> | ||
diff --git a/documentation/ref-manual/migration.xml b/documentation/ref-manual/migration.xml new file mode 100644 index 0000000000..40c570f8ca --- /dev/null +++ b/documentation/ref-manual/migration.xml | |||
| @@ -0,0 +1,235 @@ | |||
| 1 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <chapter id='migration'> | ||
| 6 | <title>Migrating to a Newer Yocto Project Release</title> | ||
| 7 | |||
| 8 | <para> | ||
| 9 | This chapter provides information you can use to migrate work to a | ||
| 10 | newer Yocto Project release. You can find the same information in the | ||
| 11 | release notes for a given release. | ||
| 12 | </para> | ||
| 13 | |||
| 14 | <section id='moving-to-the-yocto-project-1.3-release'> | ||
| 15 | <title>Moving to the Yocto Project 1.3 Release</title> | ||
| 16 | |||
| 17 | <para> | ||
| 18 | This section provides migration information for moving to the | ||
| 19 | Yocto Project 1.3 Release. | ||
| 20 | </para> | ||
| 21 | |||
| 22 | <section id='1.3-local-configuration'> | ||
| 23 | <title>Local Configuration</title> | ||
| 24 | |||
| 25 | <para> | ||
| 26 | Differences include changes for | ||
| 27 | <link linkend='var-SSTATE_MIRRORS'><filename>SSTATE_MIRRORS</filename></link> | ||
| 28 | and <filename>bblayers.conf</filename>. | ||
| 29 | </para> | ||
| 30 | |||
| 31 | <section id='migration-1.3-sstate-mirrors'> | ||
| 32 | <title>SSTATE_MIRRORS</title> | ||
| 33 | |||
| 34 | <para> | ||
| 35 | The shared state cache (sstate-cache) as pointed to by | ||
| 36 | <link linkend='var-SSTATE_DIR'><filename>SSTATE_DIR</filename></link> by default | ||
| 37 | now has two-character subdirectories to prevent there being an issue with too | ||
| 38 | many files in the same directory. | ||
| 39 | Also, native sstate-cache packages will go into a subdirectory named using | ||
| 40 | the distro ID string. | ||
| 41 | If you copy the newly structured sstate-cache to a mirror location | ||
| 42 | (either local or remote) and then point to it in | ||
| 43 | <link linkend='var-SSTATE_MIRRORS'><filename>SSTATE_MIRRORS</filename></link>, | ||
| 44 | you need to append "PATH" to the end of the mirror URL so that | ||
| 45 | the path used by BitBake before the mirror substitution is | ||
| 46 | appended to the path used to access the mirror. | ||
| 47 | Here is an example: | ||
| 48 | <literallayout class='monospaced'> | ||
| 49 | SSTATE_MIRRORS = "file://.* http://someserver.tld/share/sstate/PATH" | ||
| 50 | </literallayout> | ||
| 51 | </para> | ||
| 52 | </section> | ||
| 53 | |||
| 54 | <section id='migration-1.3-bblayers-conf'> | ||
| 55 | <title>bblayers.conf</title> | ||
| 56 | |||
| 57 | <para> | ||
| 58 | The <filename>meta-yocto</filename> layer has been split into | ||
| 59 | two parts: <filename>meta-yocto</filename> and | ||
| 60 | <filename>meta-yocto-bsp</filename>, corresponding to the | ||
| 61 | Poky reference distro configuration and the reference | ||
| 62 | hardware Board Support Packages (BSPs), respectively. | ||
| 63 | When running BitBake or Hob for the first time after upgrading, | ||
| 64 | your <filename>conf/bblayers.conf</filename> file will be | ||
| 65 | updated to handle this change and you will be asked to | ||
| 66 | re-run/restart for the changes to take effect. | ||
| 67 | </para> | ||
| 68 | </section> | ||
| 69 | </section> | ||
| 70 | |||
| 71 | <section id='1.3-recipes'> | ||
| 72 | <title>Recipes</title> | ||
| 73 | |||
| 74 | <para> | ||
| 75 | Differences include changes for the following: | ||
| 76 | <itemizedlist> | ||
| 77 | <listitem><para>Python function whitespace</para></listitem> | ||
| 78 | <listitem><para><filename>proto=</filename> in <filename>SRC_URI</filename></para></listitem> | ||
| 79 | <listitem><para><filename>nativesdk</filename></para></listitem> | ||
| 80 | <listitem><para>Task recipes</para></listitem> | ||
| 81 | <listitem><para><filename>IMAGE_FEATURES</filename></para></listitem> | ||
| 82 | <listitem><para>Removed recipes</para></listitem> | ||
| 83 | </itemizedlist> | ||
| 84 | </para> | ||
| 85 | |||
| 86 | <section id='migration-1.3-python-function-whitespace'> | ||
| 87 | <title>Python Function Whitespace</title> | ||
| 88 | |||
| 89 | <para> | ||
| 90 | All Python functions must now use four spaces for indentation. | ||
| 91 | Previously, an inconsistent mix of spaces and tabs existed, | ||
| 92 | which made extending these functions using | ||
| 93 | <filename>_append</filename> or <filename>_prepend</filename> | ||
| 94 | complicated given that Python treats whitespace as | ||
| 95 | syntactically significant. | ||
| 96 | If you are defining or extending any Python functions (e.g. | ||
| 97 | <filename>populate_packages</filename>, <filename>do_unpack</filename>, | ||
| 98 | <filename>do_patch</filename> and so forth) in custom recipes | ||
| 99 | or classes, you need to ensure you are using consistent | ||
| 100 | four-space indentation. | ||
| 101 | </para> | ||
| 102 | </section> | ||
| 103 | |||
| 104 | <section id='migration-1.3-proto=-in-src-uri'> | ||
| 105 | <title>proto= in SRC_URI</title> | ||
| 106 | |||
| 107 | <para> | ||
| 108 | Any use of <filename>proto=</filename> in | ||
| 109 | <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link> | ||
| 110 | needs to be changed to <filename>protocol=</filename>. | ||
| 111 | In particular, this applies to the following URIs: | ||
| 112 | <itemizedlist> | ||
| 113 | <listitem><para><filename>svn://</filename></para></listitem> | ||
| 114 | <listitem><para><filename>bzr://</filename></para></listitem> | ||
| 115 | <listitem><para><filename>hg://</filename></para></listitem> | ||
| 116 | <listitem><para><filename>osc://</filename></para></listitem> | ||
| 117 | </itemizedlist> | ||
| 118 | Other URIs were already using <filename>protocol=</filename>. | ||
| 119 | This change improves consistency. | ||
| 120 | </para> | ||
| 121 | </section> | ||
| 122 | |||
| 123 | <section id='migration-1.3-nativesdk'> | ||
| 124 | <title>nativesdk</title> | ||
| 125 | |||
| 126 | <para> | ||
| 127 | The suffix <filename>nativesdk</filename> is now implemented | ||
| 128 | as a prefix, which simplifies a lot of the packaging code for | ||
| 129 | <filename>nativesdk</filename> recipes. | ||
| 130 | All custom <filename>nativesdk</filename> recipes and any | ||
| 131 | references need to be updated to use | ||
| 132 | <filename>nativesdk-*</filename> instead of | ||
| 133 | <filename>*-nativesdk</filename>. | ||
| 134 | </para> | ||
| 135 | </section> | ||
| 136 | |||
| 137 | <section id='migration-1.3-task-recipes'> | ||
| 138 | <title>Task Recipes</title> | ||
| 139 | |||
| 140 | <para> | ||
| 141 | "Task" recipes are now known as "Package groups" and have | ||
| 142 | been renamed from <filename>task-*.bb</filename> to | ||
| 143 | <filename>packagegroup-*.bb</filename>. | ||
| 144 | Existing references to the previous <filename>task-*</filename> | ||
| 145 | names should work in most cases as there is an automatic | ||
| 146 | upgrade path for most packages. | ||
| 147 | However, you should update references in your own recipes and | ||
| 148 | configurations as they could be removed in future releases. | ||
| 149 | You should also rename any custom <filename>task-*</filename> | ||
| 150 | recipes to <filename>packagegroup-*</filename>, and change | ||
| 151 | them to inherit <filename>packagegroup</filename> instead of | ||
| 152 | <filename>task</filename>, as well as taking the opportunity | ||
| 153 | to remove anything now handled by | ||
| 154 | <filename>packagegroup.bbclass</filename>, such as providing | ||
| 155 | <filename>-dev</filename> and <filename>-dbg</filename> | ||
| 156 | packages, setting | ||
| 157 | <link linkend='var-LIC_FILES_CHKSUM'><filename>LIC_FILES_CHKSUM</filename></link>, | ||
| 158 | and so forth. | ||
| 159 | See the | ||
| 160 | "<link linkend='ref-classes-packagegroup'>Package Groups - packagegroup.bbclass</link>" | ||
| 161 | section for further details. | ||
| 162 | </para> | ||
| 163 | </section> | ||
| 164 | |||
| 165 | <section id='migration-1.3-image-features'> | ||
| 166 | <title>IMAGE_FEATURES</title> | ||
| 167 | |||
| 168 | <para> | ||
| 169 | Image recipes that previously included "apps-console-core" | ||
| 170 | in <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link> | ||
| 171 | should now include "splash" instead to enable the boot-up | ||
| 172 | splash screen. | ||
| 173 | Retaining "apps-console-core" will still include the splash | ||
| 174 | screen generates a warning. | ||
| 175 | The "apps-x11-core" and "apps-x11-games" | ||
| 176 | <filename>IMAGE_FEATURES</filename> features have been removed. | ||
| 177 | </para> | ||
| 178 | </section> | ||
| 179 | |||
| 180 | <section id='migration-1.3-removed-recipes'> | ||
| 181 | <title>Removed Recipes</title> | ||
| 182 | |||
| 183 | <para> | ||
| 184 | The following recipes have been removed. | ||
| 185 | For most of them, it is unlikely that you would have any | ||
| 186 | references to them in your own metadata. | ||
| 187 | However, you should check your metadata against this list to be sure: | ||
| 188 | <itemizedlist> | ||
| 189 | <listitem><para><emphasis><filename>libx11-trim</filename></emphasis>: | ||
| 190 | Replaced by <filename>libx11</filename>, which has a negligible | ||
| 191 | size difference with modern Xorg.</para></listitem> | ||
| 192 | <listitem><para><emphasis><filename>xserver-xorg-lite</filename></emphasis>: | ||
| 193 | Use <filename>xserver-xorg</filename>, which has a negligible | ||
| 194 | size difference when DRI and GLX modules are not installed.</para></listitem> | ||
| 195 | <listitem><para><emphasis><filename>xserver-kdrive</filename></emphasis>: | ||
| 196 | Effectively unmaintained for many years.</para></listitem> | ||
| 197 | <listitem><para><emphasis><filename>mesa-xlib</filename></emphasis>: | ||
| 198 | No longer serves any purpose.</para></listitem> | ||
| 199 | <listitem><para><emphasis><filename>galago</filename></emphasis>: | ||
| 200 | Replaced by telepathy.</para></listitem> | ||
| 201 | <listitem><para><emphasis><filename>gail</filename></emphasis>: | ||
| 202 | Functionality was integrated into GTK+ 2.13.</para></listitem> | ||
| 203 | <listitem><para><emphasis><filename>eggdbus</filename></emphasis>: | ||
| 204 | No longer needed.</para></listitem> | ||
| 205 | <listitem><para><emphasis><filename>gcc-*-intermediate</filename></emphasis>: | ||
| 206 | The build has been restructured to avoid the need for | ||
| 207 | this step.</para></listitem> | ||
| 208 | <listitem><para><emphasis><filename>libgsmd</filename></emphasis>: | ||
| 209 | Unmaintained for many years. | ||
| 210 | Functionality now provided by | ||
| 211 | <filename>ofono</filename> instead.</para></listitem> | ||
| 212 | <listitem><para><emphasis>contacts, dates, tasks, eds-tools</emphasis>: | ||
| 213 | Largely unmaintained PIM application suite. | ||
| 214 | It has been moved to <filename>meta-gnome</filename> | ||
| 215 | in <filename>meta-openembedded</filename>.</para></listitem> | ||
| 216 | </itemizedlist> | ||
| 217 | In addition to the previously listed changes, the | ||
| 218 | <filename>meta-demoapps</filename> directory has also been removed | ||
| 219 | because the recipes in it were not being maintained and many | ||
| 220 | had become obsolete or broken. | ||
| 221 | Additionally, these recipes were not parsed in the default configuration. | ||
| 222 | Many of these recipes are already provided in an updated and | ||
| 223 | maintained form within OpenEmbedded community layers such as | ||
| 224 | <filename>meta-oe</filename> and <filename>meta-gnome</filename>. | ||
| 225 | For the remainder, you can now find them in the | ||
| 226 | <filename>meta-extras</filename> repository, which is in the | ||
| 227 | Yocto Project source repositories. | ||
| 228 | </para> | ||
| 229 | </section> | ||
| 230 | </section> | ||
| 231 | </section> | ||
| 232 | </chapter> | ||
| 233 | <!-- | ||
| 234 | vim: expandtab tw=80 ts=4 | ||
| 235 | --> | ||
diff --git a/documentation/ref-manual/ref-bitbake.xml b/documentation/ref-manual/ref-bitbake.xml new file mode 100644 index 0000000000..4d4b9d6188 --- /dev/null +++ b/documentation/ref-manual/ref-bitbake.xml | |||
| @@ -0,0 +1,419 @@ | |||
| 1 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <chapter id='ref-bitbake'> | ||
| 6 | |||
| 7 | <title>BitBake</title> | ||
| 8 | |||
| 9 | <para> | ||
| 10 | BitBake is a program written in Python that interprets the metadata used by the OpenEmbedded | ||
| 11 | build system. | ||
| 12 | At some point, developers wonder what actually happens when you enter: | ||
| 13 | <literallayout class='monospaced'> | ||
| 14 | $ bitbake core-image-sato | ||
| 15 | </literallayout> | ||
| 16 | </para> | ||
| 17 | |||
| 18 | <para> | ||
| 19 | This chapter provides an overview of what happens behind the scenes from BitBake's perspective. | ||
| 20 | </para> | ||
| 21 | |||
| 22 | <note> | ||
| 23 | BitBake strives to be a generic "task" executor that is capable of handling complex dependency relationships. | ||
| 24 | As such, it has no real knowledge of what the tasks being executed actually do. | ||
| 25 | BitBake just considers a list of tasks with dependencies and handles metadata | ||
| 26 | that consists of variables in a certain format that get passed to the tasks. | ||
| 27 | </note> | ||
| 28 | |||
| 29 | <section id='ref-bitbake-parsing'> | ||
| 30 | <title>Parsing</title> | ||
| 31 | |||
| 32 | <para> | ||
| 33 | BitBake parses configuration files, classes, and <filename>.bb</filename> files. | ||
| 34 | </para> | ||
| 35 | |||
| 36 | <para> | ||
| 37 | The first thing BitBake does is look for the <filename>bitbake.conf</filename> file. | ||
| 38 | This file resides in the | ||
| 39 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink> | ||
| 40 | within the <filename>meta/conf/</filename> directory. | ||
| 41 | BitBake finds it by examining its | ||
| 42 | <link linkend='var-BBPATH'><filename>BBPATH</filename></link> environment | ||
| 43 | variable and looking for the <filename>meta/conf/</filename> | ||
| 44 | directory. | ||
| 45 | </para> | ||
| 46 | |||
| 47 | <para> | ||
| 48 | The <filename>bitbake.conf</filename> file lists other configuration | ||
| 49 | files to include from a <filename>conf/</filename> | ||
| 50 | directory below the directories listed in <filename>BBPATH</filename>. | ||
| 51 | In general, the most important configuration file from a user's perspective | ||
| 52 | is <filename>local.conf</filename>, which contains a user's customized | ||
| 53 | settings for the OpenEmbedded build environment. | ||
| 54 | Other notable configuration files are the distribution | ||
| 55 | configuration file (set by the | ||
| 56 | <filename><link linkend='var-DISTRO'>DISTRO</link></filename> variable) | ||
| 57 | and the machine configuration file | ||
| 58 | (set by the | ||
| 59 | <filename><link linkend='var-MACHINE'>MACHINE</link></filename> variable). | ||
| 60 | The <filename>DISTRO</filename> and <filename>MACHINE</filename> BitBake environment | ||
| 61 | variables are both usually set in | ||
| 62 | the <filename>local.conf</filename> file. | ||
| 63 | Valid distribution | ||
| 64 | configuration files are available in the <filename>meta/conf/distro/</filename> directory | ||
| 65 | and valid machine configuration | ||
| 66 | files in the <filename>meta/conf/machine/</filename> directory. | ||
| 67 | Within the <filename>meta/conf/machine/include/</filename> | ||
| 68 | directory are various <filename>tune-*.inc</filename> configuration files that provide common | ||
| 69 | "tuning" settings specific to and shared between particular architectures and machines. | ||
| 70 | </para> | ||
| 71 | |||
| 72 | <para> | ||
| 73 | After the parsing of the configuration files, some standard classes are included. | ||
| 74 | The <filename>base.bbclass</filename> file is always included. | ||
| 75 | Other classes that are specified in the configuration using the | ||
| 76 | <filename><link linkend='var-INHERIT'>INHERIT</link></filename> | ||
| 77 | variable are also included. | ||
| 78 | Class files are searched for in a <filename>classes</filename> subdirectory | ||
| 79 | under the paths in <filename>BBPATH</filename> in the same way as | ||
| 80 | configuration files. | ||
| 81 | </para> | ||
| 82 | |||
| 83 | <para> | ||
| 84 | After classes are included, the variable | ||
| 85 | <filename><link linkend='var-BBFILES'>BBFILES</link></filename> | ||
| 86 | is set, usually in | ||
| 87 | <filename>local.conf</filename>, and defines the list of places to search for | ||
| 88 | <filename>.bb</filename> files. | ||
| 89 | By default, the <filename>BBFILES</filename> variable specifies the | ||
| 90 | <filename>meta/recipes-*/</filename> directory within Poky. | ||
| 91 | Adding extra content to <filename>BBFILES</filename> is best achieved through the use of | ||
| 92 | BitBake layers as described in the | ||
| 93 | "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and | ||
| 94 | Creating Layers</ulink>" section of the Yocto Project Development Manual. | ||
| 95 | </para> | ||
| 96 | |||
| 97 | <para> | ||
| 98 | BitBake parses each <filename>.bb</filename> file in <filename>BBFILES</filename> and | ||
| 99 | stores the values of various variables. | ||
| 100 | In summary, for each <filename>.bb</filename> | ||
| 101 | file the configuration plus the base class of variables are set, followed | ||
| 102 | by the data in the <filename>.bb</filename> file | ||
| 103 | itself, followed by any inherit commands that | ||
| 104 | <filename>.bb</filename> file might contain. | ||
| 105 | </para> | ||
| 106 | |||
| 107 | <para> | ||
| 108 | Because parsing <filename>.bb</filename> files is a time | ||
| 109 | consuming process, a cache is kept to speed up subsequent parsing. | ||
| 110 | This cache is invalid if the timestamp of the <filename>.bb</filename> | ||
| 111 | file itself changes, or if the timestamps of any of the include, | ||
| 112 | configuration or class files the <filename>.bb</filename> | ||
| 113 | file depends on changes. | ||
| 114 | </para> | ||
| 115 | </section> | ||
| 116 | |||
| 117 | <section id='ref-bitbake-providers'> | ||
| 118 | <title>Preferences and Providers</title> | ||
| 119 | |||
| 120 | <para> | ||
| 121 | Once all the <filename>.bb</filename> files have been | ||
| 122 | parsed, BitBake starts to build the target (<filename>core-image-sato</filename> | ||
| 123 | in the previous section's example) and looks for providers of that target. | ||
| 124 | Once a provider is selected, BitBake resolves all the dependencies for | ||
| 125 | the target. | ||
| 126 | In the case of <filename>core-image-sato</filename>, it would lead to | ||
| 127 | <filename>packagegroup-core-x11-sato</filename>, | ||
| 128 | which in turn leads to recipes like <filename>matchbox-terminal</filename>, | ||
| 129 | <filename>pcmanfm</filename> and <filename>gthumb</filename>. | ||
| 130 | These recipes in turn depend on <filename>eglibc</filename> and the toolchain. | ||
| 131 | </para> | ||
| 132 | |||
| 133 | <para> | ||
| 134 | Sometimes a target might have multiple providers. | ||
| 135 | A common example is "virtual/kernel", which is provided by each kernel package. | ||
| 136 | Each machine often selects the best kernel provider by using a line similar to the | ||
| 137 | following in the machine configuration file: | ||
| 138 | </para> | ||
| 139 | |||
| 140 | <literallayout class='monospaced'> | ||
| 141 | PREFERRED_PROVIDER_virtual/kernel = "linux-yocto" | ||
| 142 | </literallayout> | ||
| 143 | |||
| 144 | <para> | ||
| 145 | The default <filename><link linkend='var-PREFERRED_PROVIDER'>PREFERRED_PROVIDER</link></filename> | ||
| 146 | is the provider with the same name as the target. | ||
| 147 | </para> | ||
| 148 | |||
| 149 | <para> | ||
| 150 | Understanding how providers are chosen is made complicated by the fact | ||
| 151 | that multiple versions might exist. | ||
| 152 | BitBake defaults to the highest version of a provider. | ||
| 153 | Version comparisons are made using the same method as Debian. | ||
| 154 | You can use the | ||
| 155 | <filename><link linkend='var-PREFERRED_VERSION'>PREFERRED_VERSION</link></filename> | ||
| 156 | variable to specify a particular version (usually in the distro configuration). | ||
| 157 | You can influence the order by using the | ||
| 158 | <filename><link linkend='var-DEFAULT_PREFERENCE'>DEFAULT_PREFERENCE</link></filename> | ||
| 159 | variable. | ||
| 160 | By default, files have a preference of "0". | ||
| 161 | Setting the <filename>DEFAULT_PREFERENCE</filename> to "-1" makes the | ||
| 162 | package unlikely to be used unless it is explicitly referenced. | ||
| 163 | Setting the <filename>DEFAULT_PREFERENCE</filename> to "1" makes it likely the package is used. | ||
| 164 | <filename>PREFERRED_VERSION</filename> overrides any <filename>DEFAULT_PREFERENCE</filename> setting. | ||
| 165 | <filename>DEFAULT_PREFERENCE</filename> is often used to mark newer and more experimental package | ||
| 166 | versions until they have undergone sufficient testing to be considered stable. | ||
| 167 | </para> | ||
| 168 | |||
| 169 | <para> | ||
| 170 | In summary, BitBake has created a list of providers, which is prioritized, for each target. | ||
| 171 | </para> | ||
| 172 | </section> | ||
| 173 | |||
| 174 | <section id='ref-bitbake-dependencies'> | ||
| 175 | <title>Dependencies</title> | ||
| 176 | |||
| 177 | <para> | ||
| 178 | Each target BitBake builds consists of multiple tasks such as | ||
| 179 | <filename>fetch</filename>, <filename>unpack</filename>, | ||
| 180 | <filename>patch</filename>, <filename>configure</filename>, | ||
| 181 | and <filename>compile</filename>. | ||
| 182 | For best performance on multi-core systems, BitBake considers each task as an independent | ||
| 183 | entity with its own set of dependencies. | ||
| 184 | </para> | ||
| 185 | |||
| 186 | <para> | ||
| 187 | Dependencies are defined through several variables. | ||
| 188 | You can find information about variables BitBake uses in the BitBake documentation, | ||
| 189 | which is found in the <filename>bitbake/doc/manual</filename> directory within the | ||
| 190 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 191 | At a basic level, it is sufficient to know that BitBake uses the | ||
| 192 | <filename><link linkend='var-DEPENDS'>DEPENDS</link></filename> and | ||
| 193 | <filename><link linkend='var-RDEPENDS'>RDEPENDS</link></filename> variables when | ||
| 194 | calculating dependencies. | ||
| 195 | </para> | ||
| 196 | </section> | ||
| 197 | |||
| 198 | <section id='ref-bitbake-tasklist'> | ||
| 199 | <title>The Task List</title> | ||
| 200 | |||
| 201 | <para> | ||
| 202 | Based on the generated list of providers and the dependency information, | ||
| 203 | BitBake can now calculate exactly what tasks it needs to run and in what | ||
| 204 | order it needs to run them. | ||
| 205 | The build now starts with BitBake forking off threads up to the limit set in the | ||
| 206 | <filename><link linkend='var-BB_NUMBER_THREADS'>BB_NUMBER_THREADS</link></filename> variable. | ||
| 207 | BitBake continues to fork threads as long as there are tasks ready to run, | ||
| 208 | those tasks have all their dependencies met, and the thread threshold has not been | ||
| 209 | exceeded. | ||
| 210 | </para> | ||
| 211 | |||
| 212 | <para> | ||
| 213 | It is worth noting that you can greatly speed up the build time by properly setting | ||
| 214 | the <filename>BB_NUMBER_THREADS</filename> variable. | ||
| 215 | See the | ||
| 216 | "<ulink url='&YOCTO_DOCS_QS_URL;#building-image'>Building an Image</ulink>" | ||
| 217 | section in the Yocto Project Quick Start for more information. | ||
| 218 | </para> | ||
| 219 | |||
| 220 | <para> | ||
| 221 | As each task completes, a timestamp is written to the directory specified by the | ||
| 222 | <filename><link linkend='var-STAMP'>STAMP</link></filename> variable. | ||
| 223 | On subsequent runs, BitBake looks within the <filename>/build/tmp/stamps</filename> | ||
| 224 | directory and does not rerun | ||
| 225 | tasks that are already completed unless a timestamp is found to be invalid. | ||
| 226 | Currently, invalid timestamps are only considered on a per | ||
| 227 | <filename>.bb</filename> file basis. | ||
| 228 | So, for example, if the configure stamp has a timestamp greater than the | ||
| 229 | compile timestamp for a given target, then the compile task would rerun. | ||
| 230 | Running the compile task again, however, has no effect on other providers | ||
| 231 | that depend on that target. | ||
| 232 | This behavior could change or become configurable in future versions of BitBake. | ||
| 233 | </para> | ||
| 234 | |||
| 235 | <note> | ||
| 236 | Some tasks are marked as "nostamp" tasks. | ||
| 237 | No timestamp file is created when these tasks are run. | ||
| 238 | Consequently, "nostamp" tasks are always rerun. | ||
| 239 | </note> | ||
| 240 | </section> | ||
| 241 | |||
| 242 | <section id='ref-bitbake-runtask'> | ||
| 243 | <title>Running a Task</title> | ||
| 244 | |||
| 245 | <para> | ||
| 246 | Tasks can either be a shell task or a Python task. | ||
| 247 | For shell tasks, BitBake writes a shell script to | ||
| 248 | <filename>${WORKDIR}/temp/run.do_taskname.pid</filename> and then executes the script. | ||
| 249 | The generated shell script contains all the exported variables, and the shell functions | ||
| 250 | with all variables expanded. | ||
| 251 | Output from the shell script goes to the file <filename>${WORKDIR}/temp/log.do_taskname.pid</filename>. | ||
| 252 | Looking at the expanded shell functions in the run file and the output in the log files | ||
| 253 | is a useful debugging technique. | ||
| 254 | </para> | ||
| 255 | |||
| 256 | <para> | ||
| 257 | For Python tasks, BitBake executes the task internally and logs information to the | ||
| 258 | controlling terminal. | ||
| 259 | Future versions of BitBake will write the functions to files similar to the way | ||
| 260 | shell tasks are handled. | ||
| 261 | Logging will be handled in way similar to shell tasks as well. | ||
| 262 | </para> | ||
| 263 | |||
| 264 | <para> | ||
| 265 | Once all the tasks have been completed BitBake exits. | ||
| 266 | </para> | ||
| 267 | |||
| 268 | <para> | ||
| 269 | When running a task, BitBake tightly controls the execution environment | ||
| 270 | of the build tasks to make sure unwanted contamination from the build machine | ||
| 271 | cannot influence the build. | ||
| 272 | Consequently, if you do want something to get passed into the build | ||
| 273 | task's environment, you must take a few steps: | ||
| 274 | <orderedlist> | ||
| 275 | <listitem><para>Tell BitBake to load what you want from the environment | ||
| 276 | into the data store. | ||
| 277 | You can do so through the <filename>BB_ENV_EXTRAWHITE</filename> | ||
| 278 | variable. | ||
| 279 | For example, assume you want to prevent the build system from | ||
| 280 | accessing your <filename>$HOME/.ccache</filename> directory. | ||
| 281 | The following command tells BitBake to load | ||
| 282 | <filename>CCACHE_DIR</filename> from the environment into the data | ||
| 283 | store: | ||
| 284 | <literallayout class='monospaced'> | ||
| 285 | export BB_ENV_EXTRAWHITE="$BB_ENV_EXTRAWHITE CCACHE_DIR" | ||
| 286 | </literallayout></para></listitem> | ||
| 287 | <listitem><para>Tell BitBake to export what you have loaded into the | ||
| 288 | environment store to the task environment of every running task. | ||
| 289 | Loading something from the environment into the data store | ||
| 290 | (previous step) only makes it available in the datastore. | ||
| 291 | To export it to the task environment of every running task, | ||
| 292 | use a command similar to the following in your | ||
| 293 | <filename>local.conf</filename> or distro configuration file: | ||
| 294 | <literallayout class='monospaced'> | ||
| 295 | export CCACHE_DIR | ||
| 296 | </literallayout></para></listitem> | ||
| 297 | </orderedlist> | ||
| 298 | </para> | ||
| 299 | |||
| 300 | <note> | ||
| 301 | A side effect of the previous steps is that BitBake records the variable | ||
| 302 | as a dependency of the build process in things like the shared state | ||
| 303 | checksums. | ||
| 304 | If doing so results in unnecessary rebuilds of tasks, you can whitelist the | ||
| 305 | variable so that the shared state code ignores the dependency when it creates | ||
| 306 | checksums. | ||
| 307 | For information on this process, see the <filename>BB_HASHBASE_WHITELIST</filename> | ||
| 308 | example in the "<link linkend='checksums'>Checksums (Signatures)</link>" section. | ||
| 309 | </note> | ||
| 310 | </section> | ||
| 311 | |||
| 312 | <section id='ref-bitbake-commandline'> | ||
| 313 | <title>BitBake Command Line</title> | ||
| 314 | |||
| 315 | <para> | ||
| 316 | Following is the BitBake help output: | ||
| 317 | </para> | ||
| 318 | |||
| 319 | <screen> | ||
| 320 | $ bitbake --help | ||
| 321 | Usage: bitbake [options] [package ...] | ||
| 322 | |||
| 323 | Executes the specified task (default is 'build') for a given set of BitBake files. | ||
| 324 | It expects that BBFILES is defined, which is a space separated list of files to | ||
| 325 | be executed. BBFILES does support wildcards. | ||
| 326 | Default BBFILES are the .bb files in the current directory. | ||
| 327 | |||
| 328 | Options: | ||
| 329 | --version show program's version number and exit | ||
| 330 | -h, --help show this help message and exit | ||
| 331 | -b BUILDFILE, --buildfile=BUILDFILE | ||
| 332 | execute the task against this .bb file, rather than a | ||
| 333 | package from BBFILES. Does not handle any | ||
| 334 | dependencies. | ||
| 335 | -k, --continue continue as much as possible after an error. While the | ||
| 336 | target that failed, and those that depend on it, | ||
| 337 | cannot be remade, the other dependencies of these | ||
| 338 | targets can be processed all the same. | ||
| 339 | -a, --tryaltconfigs continue with builds by trying to use alternative | ||
| 340 | providers where possible. | ||
| 341 | -f, --force force run of specified cmd, regardless of stamp status | ||
| 342 | -c CMD, --cmd=CMD Specify task to execute. Note that this only executes | ||
| 343 | the specified task for the providee and the packages | ||
| 344 | it depends on, i.e. 'compile' does not implicitly call | ||
| 345 | stage for the dependencies (IOW: use only if you know | ||
| 346 | what you are doing). Depending on the base.bbclass a | ||
| 347 | listtasks tasks is defined and will show available | ||
| 348 | tasks | ||
| 349 | -r PREFILE, --read=PREFILE | ||
| 350 | read the specified file before bitbake.conf | ||
| 351 | -R POSTFILE, --postread=POSTFILE | ||
| 352 | read the specified file after bitbake.conf | ||
| 353 | -v, --verbose output more chit-chat to the terminal | ||
| 354 | -D, --debug Increase the debug level. You can specify this more | ||
| 355 | than once. | ||
| 356 | -n, --dry-run don't execute, just go through the motions | ||
| 357 | -S, --dump-signatures | ||
| 358 | don't execute, just dump out the signature | ||
| 359 | construction information | ||
| 360 | -p, --parse-only quit after parsing the BB files (developers only) | ||
| 361 | -s, --show-versions show current and preferred versions of all packages | ||
| 362 | -e, --environment show the global or per-package environment (this is | ||
| 363 | what used to be bbread) | ||
| 364 | -g, --graphviz emit the dependency trees of the specified packages in | ||
| 365 | the dot syntax | ||
| 366 | -I EXTRA_ASSUME_PROVIDED, --ignore-deps=EXTRA_ASSUME_PROVIDED | ||
| 367 | Assume these dependencies don't exist and are already | ||
| 368 | provided (equivalent to ASSUME_PROVIDED). Useful to | ||
| 369 | make dependency graphs more appealing | ||
| 370 | -l DEBUG_DOMAINS, --log-domains=DEBUG_DOMAINS | ||
| 371 | Show debug logging for the specified logging domains | ||
| 372 | -P, --profile profile the command and print a report | ||
| 373 | -u UI, --ui=UI userinterface to use | ||
| 374 | -t SERVERTYPE, --servertype=SERVERTYPE | ||
| 375 | Choose which server to use, none, process or xmlrpc | ||
| 376 | --revisions-changed Set the exit code depending on whether upstream | ||
| 377 | floating revisions have changed or not | ||
| 378 | </screen> | ||
| 379 | </section> | ||
| 380 | |||
| 381 | <section id='ref-bitbake-fetchers'> | ||
| 382 | <title>Fetchers</title> | ||
| 383 | |||
| 384 | <para> | ||
| 385 | BitBake also contains a set of "fetcher" modules that allow | ||
| 386 | retrieval of source code from various types of sources. | ||
| 387 | For example, BitBake can get source code from a disk with the metadata, from websites, | ||
| 388 | from remote shell accounts or from Source Code Management (SCM) systems | ||
| 389 | like <filename>cvs/subversion/git</filename>. | ||
| 390 | </para> | ||
| 391 | |||
| 392 | <para> | ||
| 393 | Fetchers are usually triggered by entries in | ||
| 394 | <filename><link linkend='var-SRC_URI'>SRC_URI</link></filename>. | ||
| 395 | You can find information about the options and formats of entries for specific | ||
| 396 | fetchers in the BitBake manual located in the | ||
| 397 | <filename>bitbake/doc/manual</filename> directory of the | ||
| 398 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 399 | </para> | ||
| 400 | |||
| 401 | <para> | ||
| 402 | One useful feature for certain Source Code Manager (SCM) fetchers is the ability to | ||
| 403 | "auto-update" when the upstream SCM changes version. | ||
| 404 | Since this ability requires certain functionality from the SCM, not all | ||
| 405 | systems support it. | ||
| 406 | Currently Subversion, Bazaar and to a limited extent, Git support the ability to "auto-update". | ||
| 407 | This feature works using the <filename><link linkend='var-SRCREV'>SRCREV</link></filename> | ||
| 408 | variable. | ||
| 409 | See the | ||
| 410 | "<ulink url='&YOCTO_DOCS_DEV_URL;#platdev-appdev-srcrev'>Using an External SCM</ulink>" section | ||
| 411 | in the Yocto Project Development Manual for more information. | ||
| 412 | </para> | ||
| 413 | |||
| 414 | </section> | ||
| 415 | |||
| 416 | </chapter> | ||
| 417 | <!-- | ||
| 418 | vim: expandtab tw=80 ts=4 spell spelllang=en_gb | ||
| 419 | --> | ||
diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml new file mode 100644 index 0000000000..2caea272a4 --- /dev/null +++ b/documentation/ref-manual/ref-classes.xml | |||
| @@ -0,0 +1,720 @@ | |||
| 1 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <chapter id='ref-classes'> | ||
| 6 | <title>Classes</title> | ||
| 7 | |||
| 8 | <para> | ||
| 9 | Class files are used to abstract common functionality and share it amongst multiple | ||
| 10 | <filename>.bb</filename> files. | ||
| 11 | Any metadata usually found in a <filename>.bb</filename> file can also be placed in a class | ||
| 12 | file. | ||
| 13 | Class files are identified by the extension <filename>.bbclass</filename> and are usually placed | ||
| 14 | in a <filename>classes/</filename> directory beneath the | ||
| 15 | <filename>meta*/</filename> directory found in the | ||
| 16 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 17 | Class files can also be pointed to by BUILDDIR (e.g. <filename>build/</filename>)in the same way as | ||
| 18 | <filename>.conf</filename> files in the <filename>conf</filename> directory. | ||
| 19 | Class files are searched for in <link linkend='var-BBPATH'><filename>BBPATH</filename></link> | ||
| 20 | using the same method by which <filename>.conf</filename> files are searched. | ||
| 21 | </para> | ||
| 22 | |||
| 23 | <para> | ||
| 24 | In most cases inheriting the class is enough to enable its features, although | ||
| 25 | for some classes you might need to set variables or override some of the | ||
| 26 | default behaviour. | ||
| 27 | </para> | ||
| 28 | |||
| 29 | <section id='ref-classes-base'> | ||
| 30 | <title>The base class - <filename>base.bbclass</filename></title> | ||
| 31 | |||
| 32 | <para> | ||
| 33 | The base class is special in that every <filename>.bb</filename> | ||
| 34 | file inherits it automatically. | ||
| 35 | This class contains definitions for standard basic | ||
| 36 | tasks such as fetching, unpacking, configuring (empty by default), compiling | ||
| 37 | (runs any <filename>Makefile</filename> present), installing (empty by default) and packaging | ||
| 38 | (empty by default). | ||
| 39 | These classes are often overridden or extended by other classes | ||
| 40 | such as <filename>autotools.bbclass</filename> or <filename>package.bbclass</filename>. | ||
| 41 | The class also contains some commonly used functions such as <filename>oe_runmake</filename>. | ||
| 42 | </para> | ||
| 43 | </section> | ||
| 44 | |||
| 45 | <section id='ref-classes-autotools'> | ||
| 46 | <title>Autotooled Packages - <filename>autotools.bbclass</filename></title> | ||
| 47 | |||
| 48 | <para> | ||
| 49 | Autotools (<filename>autoconf</filename>, <filename>automake</filename>, | ||
| 50 | and <filename>libtool</filename>) bring standardization. | ||
| 51 | This class defines a set of tasks (configure, compile etc.) that | ||
| 52 | work for all Autotooled packages. | ||
| 53 | It should usually be enough to define a few standard variables | ||
| 54 | and then simply <filename>inherit autotools</filename>. | ||
| 55 | This class can also work with software that emulates Autotools. | ||
| 56 | For more information, see the | ||
| 57 | "<ulink url='&YOCTO_DOCS_DEV_URL;#usingpoky-extend-addpkg-autotools'>Autotooled Package</ulink>" | ||
| 58 | section in the Yocto Project Development Manual. | ||
| 59 | </para> | ||
| 60 | |||
| 61 | <para> | ||
| 62 | It's useful to have some idea of how the tasks defined by this class work | ||
| 63 | and what they do behind the scenes. | ||
| 64 | <itemizedlist> | ||
| 65 | <listitem><para><filename>do_configure</filename> ‐ regenerates the | ||
| 66 | configure script (using <filename>autoreconf</filename>) and then launches it | ||
| 67 | with a standard set of arguments used during cross-compilation. | ||
| 68 | You can pass additional parameters to <filename>configure</filename> through the | ||
| 69 | <filename><link linkend='var-EXTRA_OECONF'>EXTRA_OECONF</link></filename> variable. | ||
| 70 | </para></listitem> | ||
| 71 | <listitem><para><filename>do_compile</filename> ‐ runs <filename>make</filename> with | ||
| 72 | arguments that specify the compiler and linker. | ||
| 73 | You can pass additional arguments through | ||
| 74 | the <filename><link linkend='var-EXTRA_OEMAKE'>EXTRA_OEMAKE</link></filename> variable. | ||
| 75 | </para></listitem> | ||
| 76 | <listitem><para><filename>do_install</filename> ‐ runs <filename>make install</filename> | ||
| 77 | and passes a DESTDIR option, which takes its value from the standard | ||
| 78 | <filename><link linkend='var-DESTDIR'>DESTDIR</link></filename> variable. | ||
| 79 | </para></listitem> | ||
| 80 | </itemizedlist> | ||
| 81 | </para> | ||
| 82 | </section> | ||
| 83 | |||
| 84 | <section id='ref-classes-update-alternatives'> | ||
| 85 | <title>Alternatives - <filename>update-alternatives.bbclass</filename></title> | ||
| 86 | |||
| 87 | <para> | ||
| 88 | Several programs can fulfill the same or similar function and be installed with the same name. | ||
| 89 | For example, the <filename>ar</filename> command is available from the | ||
| 90 | <filename>busybox</filename>, <filename>binutils</filename> and | ||
| 91 | <filename>elfutils</filename> packages. | ||
| 92 | The <filename>update-alternatives.bbclass</filename> class handles renaming the | ||
| 93 | binaries so that multiple packages can be installed without conflicts. | ||
| 94 | The <filename>ar</filename> command still works regardless of which packages are installed | ||
| 95 | or subsequently removed. | ||
| 96 | The class renames the conflicting binary in each package and symlinks the highest | ||
| 97 | priority binary during installation or removal of packages. | ||
| 98 | </para> | ||
| 99 | <para> | ||
| 100 | Four variables control this class: | ||
| 101 | <itemizedlist> | ||
| 102 | <listitem><para><filename>ALTERNATIVE_NAME</filename> ‐ The name of the | ||
| 103 | binary that is replaced (<filename>ar</filename> in this example).</para></listitem> | ||
| 104 | <listitem><para><filename>ALTERNATIVE_LINK</filename> ‐ The path to | ||
| 105 | the resulting binary (<filename>/bin/ar</filename> in this example).</para></listitem> | ||
| 106 | <listitem><para><filename>ALTERNATIVE_PATH</filename> ‐ The path to the | ||
| 107 | real binary (<filename>/usr/bin/ar.binutils</filename> in this example).</para></listitem> | ||
| 108 | <listitem><para><filename>ALTERNATIVE_PRIORITY</filename> ‐ The priority of | ||
| 109 | the binary. | ||
| 110 | The version with the most features should have the highest priority.</para></listitem> | ||
| 111 | </itemizedlist> | ||
| 112 | </para> | ||
| 113 | |||
| 114 | <para> | ||
| 115 | Currently, the OpenEmbedded build system supports only one binary per package. | ||
| 116 | </para> | ||
| 117 | </section> | ||
| 118 | |||
| 119 | <section id='ref-classes-update-rc.d'> | ||
| 120 | <title>Initscripts - <filename>update-rc.d.bbclass</filename></title> | ||
| 121 | |||
| 122 | <para> | ||
| 123 | This class uses <filename>update-rc.d</filename> to safely install an | ||
| 124 | initialization script on behalf of the package. | ||
| 125 | The OpenEmbedded build system takes care of details such as making sure the script is stopped before | ||
| 126 | a package is removed and started when the package is installed. | ||
| 127 | Three variables control this class: | ||
| 128 | <filename><link linkend='var-INITSCRIPT_PACKAGES'>INITSCRIPT_PACKAGES</link></filename>, | ||
| 129 | <filename><link linkend='var-INITSCRIPT_NAME'>INITSCRIPT_NAME</link></filename> and | ||
| 130 | <filename><link linkend='var-INITSCRIPT_PARAMS'>INITSCRIPT_PARAMS</link></filename>. | ||
| 131 | See the variable links for details. | ||
| 132 | </para> | ||
| 133 | </section> | ||
| 134 | |||
| 135 | <section id='ref-classes-binconfig'> | ||
| 136 | <title>Binary config scripts - <filename>binconfig.bbclass</filename></title> | ||
| 137 | |||
| 138 | <para> | ||
| 139 | Before <filename>pkg-config</filename> had become widespread, libraries shipped shell | ||
| 140 | scripts to give information about the libraries and include paths needed | ||
| 141 | to build software (usually named <filename>LIBNAME-config</filename>). | ||
| 142 | This class assists any recipe using such scripts. | ||
| 143 | </para> | ||
| 144 | |||
| 145 | <para> | ||
| 146 | During staging, BitBake installs such scripts into the | ||
| 147 | <filename>sysroots/</filename> directory. | ||
| 148 | BitBake also changes all paths to point into the <filename>sysroots/</filename> | ||
| 149 | directory so all builds that use the script will use the correct | ||
| 150 | directories for the cross compiling layout. | ||
| 151 | </para> | ||
| 152 | </section> | ||
| 153 | |||
| 154 | <section id='ref-classes-debian'> | ||
| 155 | <title>Debian renaming - <filename>debian.bbclass</filename></title> | ||
| 156 | |||
| 157 | <para> | ||
| 158 | This class renames packages so that they follow the Debian naming | ||
| 159 | policy (i.e. <filename>eglibc</filename> becomes <filename>libc6</filename> | ||
| 160 | and <filename>eglibc-devel</filename> becomes <filename>libc6-dev</filename>. | ||
| 161 | </para> | ||
| 162 | </section> | ||
| 163 | |||
| 164 | <section id='ref-classes-pkgconfig'> | ||
| 165 | <title>Pkg-config - <filename>pkgconfig.bbclass</filename></title> | ||
| 166 | |||
| 167 | <para> | ||
| 168 | <filename>pkg-config</filename> brought standardization and this class aims to make its | ||
| 169 | integration smooth for all libraries that make use of it. | ||
| 170 | </para> | ||
| 171 | |||
| 172 | <para> | ||
| 173 | During staging, BitBake installs <filename>pkg-config</filename> data into the | ||
| 174 | <filename>sysroots/</filename> directory. | ||
| 175 | By making use of sysroot functionality within <filename>pkg-config</filename>, | ||
| 176 | this class no longer has to manipulate the files. | ||
| 177 | </para> | ||
| 178 | </section> | ||
| 179 | |||
| 180 | <section id='ref-classes-src-distribute'> | ||
| 181 | <title>Distribution of sources - <filename>src_distribute_local.bbclass</filename></title> | ||
| 182 | |||
| 183 | <para> | ||
| 184 | Many software licenses require that source files be provided along with the binaries. | ||
| 185 | To simplify this process, two classes were created: | ||
| 186 | <filename>src_distribute.bbclass</filename> and | ||
| 187 | <filename>src_distribute_local.bbclass</filename>. | ||
| 188 | </para> | ||
| 189 | |||
| 190 | <para> | ||
| 191 | The results of these classes are <filename>tmp/deploy/source/</filename> | ||
| 192 | subdirs with sources sorted by | ||
| 193 | <filename><link linkend='var-LICENSE'>LICENSE</link></filename> field. | ||
| 194 | If recipes list few licenses (or have entries like "Bitstream Vera"), | ||
| 195 | the source archive is placed in each license directory. | ||
| 196 | </para> | ||
| 197 | |||
| 198 | <para> | ||
| 199 | This class operates using three modes: | ||
| 200 | <itemizedlist> | ||
| 201 | <listitem><para><emphasis>copy:</emphasis> Copies the files to the | ||
| 202 | distribute directory.</para></listitem> | ||
| 203 | <listitem><para><emphasis>symlink:</emphasis> Symlinks the files to the | ||
| 204 | distribute directory.</para></listitem> | ||
| 205 | <listitem><para><emphasis>move+symlink:</emphasis> Moves the files into | ||
| 206 | the distribute directory and then symlinks them back.</para></listitem> | ||
| 207 | </itemizedlist> | ||
| 208 | </para> | ||
| 209 | </section> | ||
| 210 | |||
| 211 | <section id='ref-classes-perl'> | ||
| 212 | <title>Perl modules - <filename>cpan.bbclass</filename></title> | ||
| 213 | |||
| 214 | <para> | ||
| 215 | Recipes for Perl modules are simple. | ||
| 216 | These recipes usually only need to point to the source's archive and then inherit the | ||
| 217 | proper <filename>.bbclass</filename> file. | ||
| 218 | Building is split into two methods depending on which method the module authors used. | ||
| 219 | </para> | ||
| 220 | |||
| 221 | <para> | ||
| 222 | Modules that use old <filename>Makefile.PL</filename>-based build system require | ||
| 223 | <filename>cpan.bbclass</filename> in their recipes. | ||
| 224 | </para> | ||
| 225 | |||
| 226 | <para> | ||
| 227 | Modules that use <filename>Build.PL</filename>-based build system require | ||
| 228 | using <filename>cpan_build.bbclass</filename> in their recipes. | ||
| 229 | </para> | ||
| 230 | </section> | ||
| 231 | |||
| 232 | <section id='ref-classes-distutils'> | ||
| 233 | <title>Python extensions - <filename>distutils.bbclass</filename></title> | ||
| 234 | |||
| 235 | <para> | ||
| 236 | Recipes for Python extensions are simple. | ||
| 237 | These recipes usually only need to point to the source's archive and then inherit | ||
| 238 | the proper <filename>.bbclass</filename> file. | ||
| 239 | Building is split into two methods dependling on which method the module authors used. | ||
| 240 | </para> | ||
| 241 | |||
| 242 | <para> | ||
| 243 | Extensions that use an Autotools-based build system require Autotools and | ||
| 244 | <filename>distutils</filename>-based <filename>.bbclasse</filename> files in their recipes. | ||
| 245 | </para> | ||
| 246 | |||
| 247 | <para> | ||
| 248 | Extensions that use <filename>distutils</filename>-based build systems require | ||
| 249 | <filename>distutils.bbclass</filename> in their recipes. | ||
| 250 | </para> | ||
| 251 | </section> | ||
| 252 | |||
| 253 | <section id='ref-classes-devshell'> | ||
| 254 | <title>Developer Shell - <filename>devshell.bbclass</filename></title> | ||
| 255 | |||
| 256 | <para> | ||
| 257 | This class adds the <filename>devshell</filename> task. | ||
| 258 | Distribution policy dictates whether to include this class. | ||
| 259 | See the | ||
| 260 | "<ulink url='&YOCTO_DOCS_DEV_URL;#platdev-appdev-devshell'>Using a Development Shell</ulink>" section | ||
| 261 | in the Yocto Project Development Manual for more information about using <filename>devshell</filename>. | ||
| 262 | </para> | ||
| 263 | </section> | ||
| 264 | |||
| 265 | <section id='ref-classes-packagegroup'> | ||
| 266 | <title>Package Groups - <filename>packagegroup.bbclass</filename></title> | ||
| 267 | |||
| 268 | <para> | ||
| 269 | This class sets default values appropriate for package group recipes (such as | ||
| 270 | <filename><link linkend='var-PACKAGES'>PACKAGES</link></filename>, | ||
| 271 | <filename><link linkend='var-PACKAGE_ARCH'>PACKAGE_ARCH</link></filename>, | ||
| 272 | <filename><link linkend='var-ALLOW_EMPTY'>ALLOW_EMPTY</link></filename>, | ||
| 273 | and so forth. | ||
| 274 | It is highly recommended that all package group recipes inherit this class. | ||
| 275 | </para> | ||
| 276 | <para> | ||
| 277 | For information on how to use this class, see the | ||
| 278 | "<ulink url='&YOCTO_DOCS_DEV_URL;#usingpoky-extend-customimage-customtasks'>Customizing Images Using Custom Package Tasks</ulink>" | ||
| 279 | section in the Yocto Project Development Manual. | ||
| 280 | </para> | ||
| 281 | <para> | ||
| 282 | Previously, this class was named <filename>task.bbclass</filename>. | ||
| 283 | </para> | ||
| 284 | </section> | ||
| 285 | |||
| 286 | |||
| 287 | <section id='ref-classes-package'> | ||
| 288 | <title>Packaging - <filename>package*.bbclass</filename></title> | ||
| 289 | |||
| 290 | <para> | ||
| 291 | The packaging classes add support for generating packages from a build's | ||
| 292 | output. | ||
| 293 | The core generic functionality is in <filename>package.bbclass</filename>. | ||
| 294 | The code specific to particular package types is contained in various sub-classes such as | ||
| 295 | <filename>package_deb.bbclass</filename>, <filename>package_ipk.bbclass</filename>, | ||
| 296 | and <filename>package_rpm.bbclass</filename>. | ||
| 297 | Most users will want one or more of these classes. | ||
| 298 | </para> | ||
| 299 | |||
| 300 | <para> | ||
| 301 | You can control the list of resulting package formats by using the | ||
| 302 | <filename><link linkend='var-PACKAGE_CLASSES'>PACKAGE_CLASSES</link></filename> | ||
| 303 | variable defined in the <filename>local.conf</filename> configuration file, | ||
| 304 | which is located in the <filename>conf</filename> folder of the | ||
| 305 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 306 | When defining the variable, you can specify one or more package types. | ||
| 307 | Since images are generated from packages, a packaging class is | ||
| 308 | needed to enable image generation. | ||
| 309 | The first class listed in this variable is used for image generation. | ||
| 310 | </para> | ||
| 311 | |||
| 312 | <para> | ||
| 313 | The package class you choose can affect build-time performance and has space | ||
| 314 | ramifications. | ||
| 315 | In general, building a package with RPM takes about thirty percent more time as | ||
| 316 | compared to using IPK to build the same or similar package. | ||
| 317 | This comparison takes into account a complete build of the package with all | ||
| 318 | dependencies previously built. | ||
| 319 | The reason for this discrepancy is because the RPM package manager creates and | ||
| 320 | processes more metadata than the IPK package manager. | ||
| 321 | Consequently, you might consider setting <filename>PACKAGE_CLASSES</filename> | ||
| 322 | to "package_ipk" if you are building smaller systems. | ||
| 323 | </para> | ||
| 324 | |||
| 325 | <para> | ||
| 326 | Keep in mind, however, that RPM starts to provide more abilities than IPK due to | ||
| 327 | the fact that it processes more metadata. | ||
| 328 | For example, this information includes individual file types, file checksum generation | ||
| 329 | and evaluation on install, sparse file support, conflict detection and resolution | ||
| 330 | for multilib systems, ACID style upgrade, and repackaging abilities for rollbacks. | ||
| 331 | </para> | ||
| 332 | |||
| 333 | <para> | ||
| 334 | Another consideration for packages built using the RPM package manager is space. | ||
| 335 | For smaller systems, the extra space used for the Berkley Database and the amount | ||
| 336 | of metadata can affect your ability to do on-device upgrades. | ||
| 337 | </para> | ||
| 338 | |||
| 339 | <para> | ||
| 340 | You can find additional information on the effects of the package class at these | ||
| 341 | two Yocto Project mailing list links: | ||
| 342 | <itemizedlist> | ||
| 343 | <listitem><para><ulink url='&YOCTO_LISTS_URL;/pipermail/poky/2011-May/006362.html'> | ||
| 344 | https://lists.yoctoproject.org/pipermail/poky/2011-May/006362.html</ulink></para></listitem> | ||
| 345 | <listitem><para><ulink url='&YOCTO_LISTS_URL;/pipermail/poky/2011-May/006363.html'> | ||
| 346 | https://lists.yoctoproject.org/pipermail/poky/2011-May/006363.html</ulink></para></listitem> | ||
| 347 | </itemizedlist> | ||
| 348 | </para> | ||
| 349 | </section> | ||
| 350 | |||
| 351 | <section id='ref-classes-kernel'> | ||
| 352 | <title>Building kernels - <filename>kernel.bbclass</filename></title> | ||
| 353 | |||
| 354 | <para> | ||
| 355 | This class handles building Linux kernels. | ||
| 356 | The class contains code to build all kernel trees. | ||
| 357 | All needed headers are staged into the | ||
| 358 | <filename><link linkend='var-STAGING_KERNEL_DIR'>STAGING_KERNEL_DIR</link></filename> | ||
| 359 | directory to allow out-of-tree module builds using <filename>module.bbclass</filename>. | ||
| 360 | </para> | ||
| 361 | |||
| 362 | <para> | ||
| 363 | This means that each built kernel module is packaged separately and inter-module | ||
| 364 | dependencies are created by parsing the <filename>modinfo</filename> output. | ||
| 365 | If all modules are required, then installing the <filename>kernel-modules</filename> | ||
| 366 | package installs all packages with modules and various other kernel packages | ||
| 367 | such as <filename>kernel-vmlinux</filename>. | ||
| 368 | </para> | ||
| 369 | |||
| 370 | <para> | ||
| 371 | Various other classes are used by the kernel and module classes internally including | ||
| 372 | <filename>kernel-arch.bbclass</filename>, <filename>module_strip.bbclass</filename>, | ||
| 373 | <filename>module-base.bbclass</filename>, and <filename>linux-kernel-base.bbclass</filename>. | ||
| 374 | </para> | ||
| 375 | </section> | ||
| 376 | |||
| 377 | <section id='ref-classes-image'> | ||
| 378 | <title>Creating images - <filename>image.bbclass</filename> and <filename>rootfs*.bbclass</filename></title> | ||
| 379 | |||
| 380 | <para> | ||
| 381 | These classes add support for creating images in several formats. | ||
| 382 | First, the root filesystem is created from packages using | ||
| 383 | one of the <filename>rootfs_*.bbclass</filename> | ||
| 384 | files (depending on the package format used) and then the image is created. | ||
| 385 | </para> | ||
| 386 | |||
| 387 | <para> | ||
| 388 | The <filename><link linkend='var-IMAGE_FSTYPES'>IMAGE_FSTYPES</link></filename> | ||
| 389 | variable controls the types of images to generate. | ||
| 390 | </para> | ||
| 391 | |||
| 392 | <para> | ||
| 393 | The <filename><link linkend='var-IMAGE_INSTALL'>IMAGE_INSTALL</link></filename> | ||
| 394 | variable controls the list of packages to install into the image. | ||
| 395 | </para> | ||
| 396 | </section> | ||
| 397 | |||
| 398 | <section id='ref-classes-sanity'> | ||
| 399 | <title>Host System sanity checks - <filename>sanity.bbclass</filename></title> | ||
| 400 | |||
| 401 | <para> | ||
| 402 | This class checks to see if prerequisite software is present so that | ||
| 403 | users can be notified of potential problems that might affect their build. | ||
| 404 | The class also performs basic user configuration checks from | ||
| 405 | the <filename>local.conf</filename> configuration file to | ||
| 406 | prevent common mistakes that cause build failures. | ||
| 407 | Distribution policy usually determines whether to include this class. | ||
| 408 | </para> | ||
| 409 | </section> | ||
| 410 | |||
| 411 | <section id='ref-classes-insane'> | ||
| 412 | <title>Generated output quality assurance checks - <filename>insane.bbclass</filename></title> | ||
| 413 | |||
| 414 | <para> | ||
| 415 | This class adds a step to the package generation process that sanity checks the | ||
| 416 | packages generated by the OpenEmbedded build system. | ||
| 417 | A range of checks are performed that check the build's output | ||
| 418 | for common problems that show up during runtime. | ||
| 419 | Distribution policy usually dictates whether to include this class. | ||
| 420 | </para> | ||
| 421 | |||
| 422 | <para> | ||
| 423 | You can configure the sanity checks so that specific test failures either raise a warning or | ||
| 424 | an error message. | ||
| 425 | Typically, failures for new tests generate a warning. | ||
| 426 | Subsequent failures for the same test would then generate an error message | ||
| 427 | once the metadata is in a known and good condition. | ||
| 428 | You use the <filename>WARN_QA</filename> variable to specify tests for which you | ||
| 429 | want to generate a warning message on failure. | ||
| 430 | You use the <filename>ERROR_QA</filename> variable to specify tests for which you | ||
| 431 | want to generate an error message on failure. | ||
| 432 | </para> | ||
| 433 | |||
| 434 | <para> | ||
| 435 | The following list shows the tests you can list with the <filename>WARN_QA</filename> | ||
| 436 | and <filename>ERROR_QA</filename> variables: | ||
| 437 | <itemizedlist> | ||
| 438 | <listitem><para><emphasis><filename>ldflags:</filename></emphasis> | ||
| 439 | Ensures that the binaries were linked with the | ||
| 440 | <filename>LDFLAGS</filename> options provided by the build system. | ||
| 441 | If this test fails, check that the <filename>LDFLAGS</filename> variable | ||
| 442 | is being passed to the linker command.</para></listitem> | ||
| 443 | <listitem><para><emphasis><filename>useless-rpaths:</filename></emphasis> | ||
| 444 | Checks for dynamic library load paths (rpaths) in the binaries that | ||
| 445 | by default on a standard system are searched by the linker (e.g. | ||
| 446 | <filename>/lib</filename> and <filename>/usr/lib</filename>). | ||
| 447 | While these paths will not cause any breakage, they do waste space and | ||
| 448 | are unnecessary.</para></listitem> | ||
| 449 | <listitem><para><emphasis><filename>rpaths:</filename></emphasis> | ||
| 450 | Checks for rpaths in the binaries that contain build system paths such | ||
| 451 | as <filename>TMPDIR</filename>. | ||
| 452 | If this test fails, bad <filename>-rpath</filename> options are being | ||
| 453 | passed to the linker commands and your binaries have potential security | ||
| 454 | issues.</para></listitem> | ||
| 455 | <listitem><para><emphasis><filename>dev-so:</filename></emphasis> | ||
| 456 | Checks that the <filename>.so</filename> symbolic links are in the | ||
| 457 | <filename>-dev</filename> package and not in any of the other packages. | ||
| 458 | In general, these symlinks are only useful for development purposes. | ||
| 459 | Thus, the <filename>-dev</filename> package is the correct location for | ||
| 460 | them. | ||
| 461 | Some very rare cases do exist for dynamically loaded modules where | ||
| 462 | these symlinks are needed instead in the main package. | ||
| 463 | </para></listitem> | ||
| 464 | <listitem><para><emphasis><filename>debug-files:</filename></emphasis> | ||
| 465 | Checks for <filename>.debug</filename> directories in anything but the | ||
| 466 | <filename>-dbg</filename> package. | ||
| 467 | The debug files should all be in the <filename>-dbg</filename> package. | ||
| 468 | Thus, anything packaged elsewhere is incorrect packaging.</para></listitem> | ||
| 469 | <listitem><para><emphasis><filename>arch:</filename></emphasis> | ||
| 470 | Checks the Executable and Linkable Format (ELF) type, bit size and endianness | ||
| 471 | of any binaries to ensure it matches the target architecture. | ||
| 472 | This test fails if any binaries don't match the type since there would be an | ||
| 473 | incompatibility. | ||
| 474 | Sometimes software, like bootloaders, might need to bypass this check. | ||
| 475 | </para></listitem> | ||
| 476 | <listitem><para><emphasis><filename>debug-deps:</filename></emphasis> | ||
| 477 | Checks that <filename>-dbg</filename> packages only depend on other | ||
| 478 | <filename>-dbg</filename> packages and not on any other types of packages, | ||
| 479 | which would cause a packaging bug.</para></listitem> | ||
| 480 | <listitem><para><emphasis><filename>dev-deps:</filename></emphasis> | ||
| 481 | Checks that <filename>-dev</filename> packages only depend on other | ||
| 482 | <filename>-dev</filename> packages and not on any other types of packages, | ||
| 483 | which would be a packaging bug.</para></listitem> | ||
| 484 | <listitem><para><emphasis><filename>pkgconfig:</filename></emphasis> | ||
| 485 | Checks <filename>.pc</filename> files for any | ||
| 486 | <filename>TMPDIR/WORKDIR</filename> paths. | ||
| 487 | Any <filename>.pc</filename> file containing these paths is incorrect | ||
| 488 | since <filename>pkg-config</filename> itself adds the correct sysroot prefix | ||
| 489 | when the files are accessed.</para></listitem> | ||
| 490 | <listitem><para><emphasis><filename>la:</filename></emphasis> | ||
| 491 | Checks <filename>.la</filename> files for any <filename>TMPDIR</filename> | ||
| 492 | paths. | ||
| 493 | Any <filename>.la</filename> file continaing these paths is incorrect since | ||
| 494 | <filename>libtool</filename> adds the correct sysroot prefix when using the | ||
| 495 | files automatically itself.</para></listitem> | ||
| 496 | <listitem><para><emphasis><filename>desktop:</filename></emphasis> | ||
| 497 | Runs the <filename>desktop-file-validate</filename> program against any | ||
| 498 | <filename>.desktop</filename> files to validate their contents against | ||
| 499 | the specification for <filename>.desktop</filename> files.</para></listitem> | ||
| 500 | </itemizedlist> | ||
| 501 | </para> | ||
| 502 | </section> | ||
| 503 | |||
| 504 | <section id='ref-classes-siteinfo'> | ||
| 505 | <title>Autotools configuration data cache - <filename>siteinfo.bbclass</filename></title> | ||
| 506 | |||
| 507 | <para> | ||
| 508 | Autotools can require tests that must execute on the target hardware. | ||
| 509 | Since this is not possible in general when cross compiling, site information is | ||
| 510 | used to provide cached test results so these tests can be skipped over but | ||
| 511 | still make the correct values available. | ||
| 512 | The <filename><link linkend='structure-meta-site'>meta/site directory</link></filename> | ||
| 513 | contains test results sorted into different categories such as architecture, endianness, and | ||
| 514 | the <filename>libc</filename> used. | ||
| 515 | Site information provides a list of files containing data relevant to | ||
| 516 | the current build in the | ||
| 517 | <filename><link linkend='var-CONFIG_SITE'>CONFIG_SITE</link></filename> variable | ||
| 518 | that Autotools automatically picks up. | ||
| 519 | </para> | ||
| 520 | |||
| 521 | <para> | ||
| 522 | The class also provides variables like | ||
| 523 | <filename><link linkend='var-SITEINFO_ENDIANNESS'>SITEINFO_ENDIANNESS</link></filename> | ||
| 524 | and <filename><link linkend='var-SITEINFO_BITS'>SITEINFO_BITS</link></filename> | ||
| 525 | that can be used elsewhere in the metadata. | ||
| 526 | </para> | ||
| 527 | |||
| 528 | <para> | ||
| 529 | Because this class is included from <filename>base.bbclass</filename>, it is always active. | ||
| 530 | </para> | ||
| 531 | </section> | ||
| 532 | |||
| 533 | <section id='ref-classes-useradd'> | ||
| 534 | <title>Adding Users - <filename>useradd.bbclass</filename></title> | ||
| 535 | |||
| 536 | <para> | ||
| 537 | If you have packages that install files that are owned by custom users or groups, | ||
| 538 | you can use this class to specify those packages and associate the users and groups | ||
| 539 | with those packages. | ||
| 540 | The <filename>meta-skeleton/recipes-skeleton/useradd/useradd-example.bb</filename> | ||
| 541 | recipe in the <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink> | ||
| 542 | provides a simple exmample that shows how to add three | ||
| 543 | users and groups to two packages. | ||
| 544 | See the <filename>useradd-example.bb</filename> for more information on how to | ||
| 545 | use this class. | ||
| 546 | </para> | ||
| 547 | </section> | ||
| 548 | |||
| 549 | <section id='ref-classes-externalsrc'> | ||
| 550 | <title>Using External Source - <filename>externalsrc.bbclass</filename></title> | ||
| 551 | |||
| 552 | <para> | ||
| 553 | You can use this class to build software from source code that is external to the | ||
| 554 | OpenEmbedded build system. | ||
| 555 | In other words, your source code resides in an external tree outside of the Yocto Project. | ||
| 556 | Building software from an external source tree means that the normal fetch, unpack, and | ||
| 557 | patch process is not used. | ||
| 558 | </para> | ||
| 559 | |||
| 560 | <para> | ||
| 561 | To use the class, you need to define the | ||
| 562 | <link linkend='var-S'><filename>S</filename></link> variable to point to the directory that contains the source files. | ||
| 563 | You also need to have your recipe inherit the <filename>externalsrc.bbclass</filename> class. | ||
| 564 | </para> | ||
| 565 | |||
| 566 | <para> | ||
| 567 | This class expects the source code to support recipe builds that use the | ||
| 568 | <link linkend='var-B'><filename>B</filename></link> variable to point to the directory in | ||
| 569 | which the OpenEmbedded build system places the generated objects built from the recipes. | ||
| 570 | By default, the <filename>B</filename> directory is set to the following, which is separate from the | ||
| 571 | Source Directory (<filename>S</filename>): | ||
| 572 | <literallayout class='monospaced'> | ||
| 573 | ${WORKDIR}/${BPN}/{PV}/ | ||
| 574 | </literallayout> | ||
| 575 | See the glossary entries for the | ||
| 576 | <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>, | ||
| 577 | <link linkend='var-BPN'><filename>BPN</filename></link>, | ||
| 578 | <link linkend='var-PV'><filename>PV</filename></link>, | ||
| 579 | <link linkend='var-S'><filename>S</filename></link>, and | ||
| 580 | <link linkend='var-B'><filename>B</filename></link> for more information. | ||
| 581 | </para> | ||
| 582 | |||
| 583 | <para> | ||
| 584 | You can build object files in the external tree by setting the | ||
| 585 | <filename>B</filename> variable equal to <filename>"${S}"</filename>. | ||
| 586 | However, this practice does not work well if you use the source for more than one variant | ||
| 587 | (i.e., "natives" such as <filename>quilt-native</filename>, | ||
| 588 | or "crosses" such as <filename>gcc-cross</filename>). | ||
| 589 | So, be sure there are no "native", "cross", or "multilib" variants of the recipe. | ||
| 590 | </para> | ||
| 591 | |||
| 592 | <para> | ||
| 593 | If you do want to build different variants of a recipe, you can use the | ||
| 594 | <link linkend='var-BBCLASSEXTEND'><filename>BBCLASSEXTEND</filename></link> variable. | ||
| 595 | When you do, the <link linkend='var-B'><filename>B</filename></link> variable must support the | ||
| 596 | recipe's ability to build variants in different working directories. | ||
| 597 | Most autotools-based recipes support separating these directories. | ||
| 598 | The OpenEmbedded build system defaults to using separate directories for <filename>gcc</filename> | ||
| 599 | and some kernel recipes. | ||
| 600 | Alternatively, you can make sure that separate recipes exist that each | ||
| 601 | use the <filename>BBCLASSEXTEND</filename> variable to build each variant. | ||
| 602 | The separate recipes can inherit a single target recipe. | ||
| 603 | </para> | ||
| 604 | |||
| 605 | <para> | ||
| 606 | For information on how to use this class, see the | ||
| 607 | "<ulink url='&YOCTO_DOCS_DEV_URL;#building-software-from-an-external-source'>Building | ||
| 608 | Software from an External Source</ulink>" section in the Yocto Project Development Manual. | ||
| 609 | </para> | ||
| 610 | </section> | ||
| 611 | |||
| 612 | <section id='ref-classes-others'> | ||
| 613 | <title>Other Classes</title> | ||
| 614 | |||
| 615 | <para> | ||
| 616 | Thus far, this chapter has discussed only the most useful and important | ||
| 617 | classes. | ||
| 618 | However, other classes exist within the <filename>meta/classes</filename> directory | ||
| 619 | in the <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 620 | You can examine the <filename>.bbclass</filename> files directly for more | ||
| 621 | information. | ||
| 622 | </para> | ||
| 623 | </section> | ||
| 624 | |||
| 625 | <!-- Undocumented classes are: | ||
| 626 | allarch.bbclass | ||
| 627 | archive*.bbclass | ||
| 628 | binconfig.bbclass | ||
| 629 | blacklist.bbclass | ||
| 630 | bootimg.bbclass | ||
| 631 | boot-directdisk.bbclass | ||
| 632 | bugzilla.bbclass | ||
| 633 | buildhistory.bbclass | ||
| 634 | buildstats.bbclass | ||
| 635 | ccache.bbclass | ||
| 636 | chrpath.bbclass | ||
| 637 | cmake.bbclass | ||
| 638 | cml1.bbclass | ||
| 639 | copyleft_compliance.bbclass | ||
| 640 | core-image.bbclass | ||
| 641 | cross.bbclass | ||
| 642 | cross-canadian.bbclass | ||
| 643 | crosssdk.bbclass | ||
| 644 | deploy.bbclass | ||
| 645 | distrodata.bbclass | ||
| 646 | dummy.bbclass | ||
| 647 | gconf.bbclass | ||
| 648 | gettext.bbclass | ||
| 649 | gnomebase.bbclass | ||
| 650 | gnome.bbclass | ||
| 651 | gtk-doc.bbclass | ||
| 652 | gtk-icon-cache.bbclass | ||
| 653 | gzipnative.bbclass | ||
| 654 | icecc.bbclass | ||
| 655 | image-empty.bbclass | ||
| 656 | image-live.bbclass | ||
| 657 | image-vmdk.bbclass | ||
| 658 | image-mklibs.bbclass | ||
| 659 | image-prelink.bbclass | ||
| 660 | image-swab.bbclass | ||
| 661 | imagetest-dummy.bbclass | ||
| 662 | imagetest-qemu.bbclass | ||
| 663 | image_types.bbclass | ||
| 664 | image_types_uboot.bbclass | ||
| 665 | insserv.bbclass | ||
| 666 | kernel-arch.bbclass | ||
| 667 | kernel-yocto.bbclass | ||
| 668 | lib_package.bbclass | ||
| 669 | linux-kernel-base.bbclass | ||
| 670 | license.bbclass | ||
| 671 | logging.bbclass | ||
| 672 | meta.bbclass | ||
| 673 | metadata_scm.bbclass | ||
| 674 | mime.bbclass | ||
| 675 | mirrors.bbclass | ||
| 676 | multilib*.bbclass | ||
| 677 | native.bbclass | ||
| 678 | nativesdk.bbclass | ||
| 679 | oelint.bbclass | ||
| 680 | own-mirrors.bbclass | ||
| 681 | packagedata.bbclass | ||
| 682 | packageinfo.bbclass | ||
| 683 | patch.bbclass | ||
| 684 | perlnative.bbclass | ||
| 685 | pkg_distribute.bbclass | ||
| 686 | pkg_metainfo.bbclass | ||
| 687 | populate_sdk*.bbclass | ||
| 688 | prexport.bbclass | ||
| 689 | primport.bbclass | ||
| 690 | prserv.bbclass | ||
| 691 | python-dir.bbclass | ||
| 692 | pythonnative.bbclass | ||
| 693 | qemu.bbclass | ||
| 694 | qmake*.bbclass | ||
| 695 | qt4*.bbclass | ||
| 696 | recipe_sanity.bbclass | ||
| 697 | relocatable.bbclass | ||
| 698 | rm_work.bbclass | ||
| 699 | scons.bbclass | ||
| 700 | sdl.bbclass | ||
| 701 | setuptools.bbclass | ||
| 702 | sip.bbclass | ||
| 703 | siteconfig.bbclass | ||
| 704 | sourcepkg.bbclass | ||
| 705 | sstate.bbclass | ||
| 706 | staging.bbclass | ||
| 707 | syslinux.bbclass | ||
| 708 | terminal.bbclass | ||
| 709 | tinderclient.bbclass | ||
| 710 | toolchain-scripts.bbclass | ||
| 711 | typecheck.bbclass | ||
| 712 | utility-tasks.bbclass | ||
| 713 | utils.bbclass | ||
| 714 | --> | ||
| 715 | |||
| 716 | |||
| 717 | </chapter> | ||
| 718 | <!-- | ||
| 719 | vim: expandtab tw=80 ts=4 | ||
| 720 | --> | ||
diff --git a/documentation/ref-manual/ref-features.xml b/documentation/ref-manual/ref-features.xml new file mode 100644 index 0000000000..77c31275ae --- /dev/null +++ b/documentation/ref-manual/ref-features.xml | |||
| @@ -0,0 +1,294 @@ | |||
| 1 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <chapter id='ref-features'> | ||
| 6 | <title>Reference: Features</title> | ||
| 7 | |||
| 8 | <para> | ||
| 9 | Features provide a mechanism for working out which packages | ||
| 10 | should be included in the generated images. | ||
| 11 | Distributions can select which features they want to support through the | ||
| 12 | <filename><link linkend='var-DISTRO_FEATURES'>DISTRO_FEATURES</link></filename> | ||
| 13 | variable, which is set in the <filename>poky.conf</filename> distribution configuration file. | ||
| 14 | Machine features are set in the | ||
| 15 | <filename><link linkend='var-MACHINE_FEATURES'>MACHINE_FEATURES</link></filename> | ||
| 16 | variable, which is set in the machine configuration file and | ||
| 17 | specifies the hardware features for a given machine. | ||
| 18 | </para> | ||
| 19 | |||
| 20 | <para> | ||
| 21 | These two variables combine to work out which kernel modules, | ||
| 22 | utilities, and other packages to include. | ||
| 23 | A given distribution can support a selected subset of features so some machine features might not | ||
| 24 | be included if the distribution itself does not support them. | ||
| 25 | </para> | ||
| 26 | |||
| 27 | <para> | ||
| 28 | One method you can use to determine which recipes are checking to see if a | ||
| 29 | particular feature is contained or not is to <filename>grep</filename> through | ||
| 30 | the metadata for the feature. | ||
| 31 | Here is an example that discovers the recipes whose build is potentially | ||
| 32 | changed based on a given feature: | ||
| 33 | <literallayout class='monospaced'> | ||
| 34 | $ cd $HOME/poky | ||
| 35 | $ git grep 'contains.*MACHINE_FEATURES.*<feature>' | ||
| 36 | </literallayout> | ||
| 37 | </para> | ||
| 38 | |||
| 39 | <para> | ||
| 40 | This chapter provides a reference of shipped machine and distro features | ||
| 41 | you can include as part of the image, a reference on image types you can | ||
| 42 | build, and a reference on feature backfilling. | ||
| 43 | </para> | ||
| 44 | |||
| 45 | |||
| 46 | <section id='ref-features-distro'> | ||
| 47 | <title>Distro</title> | ||
| 48 | |||
| 49 | <para> | ||
| 50 | The items below are features you can use with | ||
| 51 | <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>. | ||
| 52 | Features do not have a one-to-one correspondence to packages, and they can | ||
| 53 | go beyond simply controlling the installation of a package or packages. | ||
| 54 | Sometimes a feature can influence how certain recipes are built. | ||
| 55 | For example, a feature might determine whether a particular configure option | ||
| 56 | is specified within <filename>do_configure</filename> for a particular | ||
| 57 | recipe. | ||
| 58 | </para> | ||
| 59 | |||
| 60 | <para> | ||
| 61 | This list only represents features as shipped with the Yocto Project metadata: | ||
| 62 | <itemizedlist> | ||
| 63 | <listitem><para><emphasis>alsa:</emphasis> ALSA support will be included (OSS compatibility | ||
| 64 | kernel modules will be installed if available).</para></listitem> | ||
| 65 | <listitem><para><emphasis>bluetooth:</emphasis> Include bluetooth support (integrated BT only) | ||
| 66 | </para></listitem> | ||
| 67 | <listitem><para><emphasis>ext2:</emphasis> Include tools for supporting for devices with internal | ||
| 68 | HDD/Microdrive for storing files (instead of Flash only devices) | ||
| 69 | </para></listitem> | ||
| 70 | <listitem><para><emphasis>irda:</emphasis> Include Irda support | ||
| 71 | </para></listitem> | ||
| 72 | <listitem><para><emphasis>keyboard:</emphasis> Include keyboard support (e.g. keymaps will be | ||
| 73 | loaded during boot). | ||
| 74 | </para></listitem> | ||
| 75 | <listitem><para><emphasis>pci:</emphasis> Include PCI bus support | ||
| 76 | </para></listitem> | ||
| 77 | <listitem><para><emphasis>pcmcia:</emphasis> Include PCMCIA/CompactFlash support | ||
| 78 | </para></listitem> | ||
| 79 | <listitem><para><emphasis>usbgadget:</emphasis> USB Gadget Device support (for USB | ||
| 80 | networking/serial/storage) | ||
| 81 | </para></listitem> | ||
| 82 | <listitem><para><emphasis>usbhost:</emphasis> USB Host support (allows to connect external | ||
| 83 | keyboard, mouse, storage, network etc) | ||
| 84 | </para></listitem> | ||
| 85 | <listitem><para><emphasis>wifi:</emphasis> WiFi support (integrated only) | ||
| 86 | </para></listitem> | ||
| 87 | <listitem><para><emphasis>cramfs:</emphasis> CramFS support | ||
| 88 | </para></listitem> | ||
| 89 | <listitem><para><emphasis>ipsec:</emphasis> IPSec support | ||
| 90 | </para></listitem> | ||
| 91 | <listitem><para><emphasis>ipv6:</emphasis> IPv6 support | ||
| 92 | </para></listitem> | ||
| 93 | <listitem><para><emphasis>nfs:</emphasis> NFS client support (for mounting NFS exports on | ||
| 94 | device)</para></listitem> | ||
| 95 | <listitem><para><emphasis>ppp:</emphasis> PPP dialup support</para></listitem> | ||
| 96 | <listitem><para><emphasis>smbfs:</emphasis> SMB networks client support (for mounting | ||
| 97 | Samba/Microsoft Windows shares on device)</para></listitem> | ||
| 98 | </itemizedlist> | ||
| 99 | </para> | ||
| 100 | </section> | ||
| 101 | |||
| 102 | <section id='ref-features-machine'> | ||
| 103 | <title>Machine</title> | ||
| 104 | |||
| 105 | <para> | ||
| 106 | The items below are features you can use with | ||
| 107 | <link linkend='var-MACHINE_FEATURES'><filename>MACHINE_FEATURES</filename></link>. | ||
| 108 | Features do not have a one-to-one correspondence to packages, and they can | ||
| 109 | go beyond simply controlling the installation of a package or packages. | ||
| 110 | Sometimes a feature can influence how certain recipes are built. | ||
| 111 | For example, a feature might determine whether a particular configure option | ||
| 112 | is specified within <filename>do_configure</filename> for a particular | ||
| 113 | recipe. | ||
| 114 | </para> | ||
| 115 | |||
| 116 | <para> | ||
| 117 | This feature list only represents features as shipped with the Yocto Project metadata: | ||
| 118 | <itemizedlist> | ||
| 119 | <listitem><para><emphasis>acpi:</emphasis> Hardware has ACPI (x86/x86_64 only) | ||
| 120 | </para></listitem> | ||
| 121 | <listitem><para><emphasis>alsa:</emphasis> Hardware has ALSA audio drivers | ||
| 122 | </para></listitem> | ||
| 123 | <listitem><para><emphasis>apm:</emphasis> Hardware uses APM (or APM emulation) | ||
| 124 | </para></listitem> | ||
| 125 | <listitem><para><emphasis>bluetooth:</emphasis> Hardware has integrated BT | ||
| 126 | </para></listitem> | ||
| 127 | <listitem><para><emphasis>ext2:</emphasis> Hardware HDD or Microdrive | ||
| 128 | </para></listitem> | ||
| 129 | <listitem><para><emphasis>irda:</emphasis> Hardware has Irda support | ||
| 130 | </para></listitem> | ||
| 131 | <listitem><para><emphasis>keyboard:</emphasis> Hardware has a keyboard | ||
| 132 | </para></listitem> | ||
| 133 | <listitem><para><emphasis>pci:</emphasis> Hardware has a PCI bus | ||
| 134 | </para></listitem> | ||
| 135 | <listitem><para><emphasis>pcmcia:</emphasis> Hardware has PCMCIA or CompactFlash sockets | ||
| 136 | </para></listitem> | ||
| 137 | <listitem><para><emphasis>screen:</emphasis> Hardware has a screen | ||
| 138 | </para></listitem> | ||
| 139 | <listitem><para><emphasis>serial:</emphasis> Hardware has serial support (usually RS232) | ||
| 140 | </para></listitem> | ||
| 141 | <listitem><para><emphasis>touchscreen:</emphasis> Hardware has a touchscreen | ||
| 142 | </para></listitem> | ||
| 143 | <listitem><para><emphasis>usbgadget:</emphasis> Hardware is USB gadget device capable | ||
| 144 | </para></listitem> | ||
| 145 | <listitem><para><emphasis>usbhost:</emphasis> Hardware is USB Host capable | ||
| 146 | </para></listitem> | ||
| 147 | <listitem><para><emphasis>wifi:</emphasis> Hardware has integrated WiFi | ||
| 148 | </para></listitem> | ||
| 149 | </itemizedlist> | ||
| 150 | </para> | ||
| 151 | </section> | ||
| 152 | |||
| 153 | <section id='ref-features-image'> | ||
| 154 | <title>Images</title> | ||
| 155 | |||
| 156 | <para> | ||
| 157 | The contents of images generated by the OpenEmbedded build system can be controlled by the | ||
| 158 | <filename><link linkend='var-IMAGE_FEATURES'>IMAGE_FEATURES</link></filename> | ||
| 159 | and <filename><link linkend='var-EXTRA_IMAGE_FEATURES'>EXTRA_IMAGE_FEATURES</link></filename> | ||
| 160 | variables that you typically configure in your image recipes. | ||
| 161 | Through these variables you can add several different | ||
| 162 | predefined packages such as development utilities or packages with debug | ||
| 163 | information needed to investigate application problems or profile applications. | ||
| 164 | </para> | ||
| 165 | |||
| 166 | <para> | ||
| 167 | Current list of | ||
| 168 | <filename>IMAGE_FEATURES</filename> contains the following: | ||
| 169 | <itemizedlist> | ||
| 170 | <listitem><para><emphasis>splash:</emphasis> Enables showing a splash screen during boot. | ||
| 171 | By default, this screen is provided by <filename>psplash</filename>, which does | ||
| 172 | allow customization. | ||
| 173 | If you prefer to use an alternative splash screen package, you can do so by | ||
| 174 | setting the <filename>SPLASH</filename> variable | ||
| 175 | to a different package name (or names) within the image recipe or at the distro | ||
| 176 | configuration level.</para></listitem> | ||
| 177 | <listitem><para><emphasis>ssh-server-dropbear:</emphasis> Installs the Dropbear minimal | ||
| 178 | SSH server. | ||
| 179 | </para></listitem> | ||
| 180 | <listitem><para><emphasis>ssh-server-openssh:</emphasis> Installs the OpenSSH SSH server, | ||
| 181 | which is more full-featured than Dropbear. | ||
| 182 | Note that if both the OpenSSH SSH server and the Dropbear minimal SSH server | ||
| 183 | are present in <filename>IMAGE_FEATURES</filename>, then OpenSSH will take | ||
| 184 | precedence and Dropbear will not be installed.</para></listitem> | ||
| 185 | <listitem><para><emphasis>x11:</emphasis> Installs the X server</para></listitem> | ||
| 186 | <listitem><para><emphasis>x11-base:</emphasis> Installs the X server with a | ||
| 187 | minimal environment.</para></listitem> | ||
| 188 | <listitem><para><emphasis>x11-sato:</emphasis> Installs the OpenedHand Sato environment. | ||
| 189 | </para></listitem> | ||
| 190 | <listitem><para><emphasis>tools-sdk:</emphasis> Installs a full SDK that runs on the device. | ||
| 191 | </para></listitem> | ||
| 192 | <listitem><para><emphasis>tools-debug:</emphasis> Installs debugging tools such as | ||
| 193 | <filename>strace</filename> and <filename>gdb</filename>. | ||
| 194 | </para></listitem> | ||
| 195 | <listitem><para><emphasis>tools-profile:</emphasis> Installs profiling tools such as | ||
| 196 | <filename>oprofile</filename>, <filename>exmap</filename>, and | ||
| 197 | <filename>LTTng</filename>.</para></listitem> | ||
| 198 | <listitem><para><emphasis>tools-testapps:</emphasis> Installs device testing tools (e.g. | ||
| 199 | touchscreen debugging).</para></listitem> | ||
| 200 | <listitem><para><emphasis>nfs-server:</emphasis> Installs an NFS server.</para></listitem> | ||
| 201 | <listitem><para><emphasis>dev-pkgs:</emphasis> Installs development packages (headers and | ||
| 202 | extra library links) for all packages installed in a given image.</para></listitem> | ||
| 203 | <listitem><para><emphasis>staticdev-pkgs:</emphasis> Installs static development | ||
| 204 | packages (i.e. static libraries containing <filename>*.a</filename> files) for all | ||
| 205 | packages installed in a given image.</para></listitem> | ||
| 206 | <listitem><para><emphasis>dbg-pkgs:</emphasis> Installs debug symbol packages for all packages | ||
| 207 | installed in a given image.</para></listitem> | ||
| 208 | <listitem><para><emphasis>doc-pkgs:</emphasis> Installs documentation packages for all packages | ||
| 209 | installed in a given image.</para></listitem> | ||
| 210 | </itemizedlist> | ||
| 211 | </para> | ||
| 212 | </section> | ||
| 213 | |||
| 214 | <section id='ref-features-backfill'> | ||
| 215 | <title>Feature Backfilling</title> | ||
| 216 | |||
| 217 | <para> | ||
| 218 | Sometimes it is necessary in the OpenEmbedded build system to extend | ||
| 219 | <link linkend='var-MACHINE_FEATURES'><filename>MACHINE_FEATURES</filename></link> | ||
| 220 | or <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link> | ||
| 221 | to control functionality that was previously enabled and not able | ||
| 222 | to be disabled. | ||
| 223 | For these cases, we need to add an | ||
| 224 | additional feature item to appear in one of these variables, | ||
| 225 | but we do not want to force developers who have existing values | ||
| 226 | of the variables in their configuration to add the new feature | ||
| 227 | in order to retain the same overall level of functionality. | ||
| 228 | Thus, the OpenEmbedded build system has a mechanism to | ||
| 229 | automatically "backfill" these added features into existing | ||
| 230 | distro or machine configurations. | ||
| 231 | You can see the list of features for which this is done by | ||
| 232 | finding the | ||
| 233 | <link linkend='var-DISTRO_FEATURES_BACKFILL'><filename>DISTRO_FEATURES_BACKFILL</filename></link> | ||
| 234 | and <link linkend='var-MACHINE_FEATURES_BACKFILL'><filename>MACHINE_FEATURES_BACKFILL</filename></link> | ||
| 235 | variables in the <filename>meta/conf/bitbake.conf</filename> file. | ||
| 236 | </para> | ||
| 237 | |||
| 238 | <para> | ||
| 239 | Because such features are backfilled by default into all | ||
| 240 | configurations as described in the previous paragraph, developers | ||
| 241 | who wish to disable the new features need to be able to selectively | ||
| 242 | prevent the backfilling from occurring. | ||
| 243 | They can do this by adding the undesired feature or features to the | ||
| 244 | <link linkend='var-DISTRO_FEATURES_BACKFILL_CONSIDERED'><filename>DISTRO_FEATURES_BACKFILL_CONSIDERED</filename></link> | ||
| 245 | or <link linkend='var-MACHINE_FEATURES_BACKFILL_CONSIDERED'><filename>MACHINE_FEATURES_BACKFILL_CONSIDERED</filename></link> | ||
| 246 | variables for distro features and machine features respectively. | ||
| 247 | </para> | ||
| 248 | |||
| 249 | <para> | ||
| 250 | Here are two examples to help illustrate feature backfilling: | ||
| 251 | <itemizedlist> | ||
| 252 | <listitem><para><emphasis>The "pulseaudio" distro feature option</emphasis>: | ||
| 253 | Previously, PulseAudio support was enabled within the Qt and | ||
| 254 | GStreamer frameworks. | ||
| 255 | Because of this, the feature is backfilled and thus | ||
| 256 | enabled for all distros through the | ||
| 257 | <filename>DISTRO_FEATURES_BACKFILL</filename> | ||
| 258 | variable in the <filename>meta/conf/bitbake.conf</filename> file. | ||
| 259 | However, your distro needs to disable the feature. | ||
| 260 | You can disable the feature without affecting | ||
| 261 | other existing distro configurations that need PulseAudio support | ||
| 262 | by adding "pulseaudio" to | ||
| 263 | <filename>DISTRO_FEATURES_BACKFILL_CONSIDERED</filename> | ||
| 264 | in your distro's <filename>.conf</filename> file. | ||
| 265 | Adding the feature to this variable when it also | ||
| 266 | exists in the <filename>DISTRO_FEATURES_BACKFILL</filename> | ||
| 267 | variable prevents the build system from adding the feature to | ||
| 268 | your configuration's <filename>DISTRO_FEATURES</filename>, effectively disabling | ||
| 269 | the feature for that particular distro.</para></listitem> | ||
| 270 | <listitem><para><emphasis>The "rtc" machine feature option</emphasis>: | ||
| 271 | Previously, real time clock (RTC) support was enabled for all | ||
| 272 | target devices. | ||
| 273 | Because of this, the feature is backfilled and thus enabled | ||
| 274 | for all machines through the <filename>MACHINE_FEATURES_BACKFILL</filename> | ||
| 275 | variable in the <filename>meta/conf/bitbake.conf</filename> file. | ||
| 276 | However, your target device does not have this capability. | ||
| 277 | You can disable RTC support for your device without | ||
| 278 | affecting other machines that need RTC support | ||
| 279 | by adding the feature to your machine's | ||
| 280 | <filename>MACHINE_FEATURES_BACKFILL_CONSIDERED</filename> | ||
| 281 | list in the machine's <filename>.conf</filename> file. | ||
| 282 | Adding the feature to this variable when it also | ||
| 283 | exists in the <filename>MACHINE_FEATURES_BACKFILL</filename> | ||
| 284 | variable prevents the build system from adding the feature to | ||
| 285 | your configuration's <filename>MACHINE_FEATURES</filename>, effectively | ||
| 286 | disabling RTC support for that particular machine.</para></listitem> | ||
| 287 | </itemizedlist> | ||
| 288 | </para> | ||
| 289 | </section> | ||
| 290 | </chapter> | ||
| 291 | |||
| 292 | <!-- | ||
| 293 | vim: expandtab tw=80 ts=4 spell spelllang=en_gb | ||
| 294 | --> | ||
diff --git a/documentation/ref-manual/ref-images.xml b/documentation/ref-manual/ref-images.xml new file mode 100644 index 0000000000..0a827ca235 --- /dev/null +++ b/documentation/ref-manual/ref-images.xml | |||
| @@ -0,0 +1,132 @@ | |||
| 1 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <chapter id='ref-images'> | ||
| 6 | <title>Images</title> | ||
| 7 | |||
| 8 | <para> | ||
| 9 | The OpenEmbedded build process supports several types of images to satisfy different needs. | ||
| 10 | When you issue the <filename>bitbake</filename> command you provide a “top-level†recipe | ||
| 11 | that essentially begins the build for the type of image you want. | ||
| 12 | </para> | ||
| 13 | |||
| 14 | <note> | ||
| 15 | Building an image without GNU General Public License Version 3 (GPLv3) components | ||
| 16 | is only supported for minimal and base images. | ||
| 17 | Furthermore, if you are going to build an image using non-GPLv3 components, | ||
| 18 | you must make the following changes in the <filename>local.conf</filename> file | ||
| 19 | before using the BitBake command to build the minimal or base image: | ||
| 20 | <literallayout class='monospaced'> | ||
| 21 | 1. Comment out the EXTRA_IMAGE_FEATURES line | ||
| 22 | 2. Set INCOMPATIBLE_LICENSE = "GPLv3" | ||
| 23 | </literallayout> | ||
| 24 | </note> | ||
| 25 | |||
| 26 | <para> | ||
| 27 | From within the <filename>poky</filename> Git repository, use the following command to list | ||
| 28 | the supported images: | ||
| 29 | <literallayout class='monospaced'> | ||
| 30 | $ ls meta*/recipes*/images/*.bb | ||
| 31 | </literallayout> | ||
| 32 | These recipes reside in the <filename>meta/recipes-core/images</filename>, | ||
| 33 | <filename>meta/recipes-extended/images</filename>, | ||
| 34 | <filename>meta/recipes-graphics/images</filename>, and | ||
| 35 | <filename>meta/recipes-sato/images</filename> directories | ||
| 36 | within the <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>source directory</ulink>. | ||
| 37 | Although the recipe names are somewhat explanatory, here is a list that describes them: | ||
| 38 | </para> | ||
| 39 | |||
| 40 | <itemizedlist> | ||
| 41 | <listitem><para><emphasis><filename>core-image-base</filename>:</emphasis> | ||
| 42 | A console-only image that fully supports the target device hardware.</para></listitem> | ||
| 43 | <listitem><para><emphasis><filename>core-image-minimal</filename>:</emphasis> | ||
| 44 | A small image just capable of allowing a device to boot.</para></listitem> | ||
| 45 | <listitem><para><emphasis><filename>core-image-minimal-dev</filename>:</emphasis> | ||
| 46 | A <filename>core-image-minimal</filename> image suitable for development work | ||
| 47 | using the host. | ||
| 48 | The image includes headers and libraries you can use in a host development | ||
| 49 | environment. | ||
| 50 | </para></listitem> | ||
| 51 | <listitem><para><emphasis><filename>core-image-minimal-initramfs</filename>:</emphasis> | ||
| 52 | A <filename>core-image-minimal</filename> image that has the Minimal RAM-based | ||
| 53 | Initial Root Filesystem (<filename>initramfs</filename>) as part of the kernel, | ||
| 54 | which allows the system to find the first “init†program more efficiently. | ||
| 55 | </para></listitem> | ||
| 56 | <listitem><para><emphasis><filename>core-image-minimal-mtdutils</filename>:</emphasis> | ||
| 57 | A <filename>core-image-minimal</filename> image that has support | ||
| 58 | for the Minimal MTD Utilities, which let the user interact with the | ||
| 59 | MTD subsystem in the kernel to perform operations on flash devices. | ||
| 60 | </para></listitem> | ||
| 61 | <listitem><para><emphasis><filename>core-image-x11</filename>:</emphasis> | ||
| 62 | A very basic X11 image with a terminal. | ||
| 63 | </para></listitem> | ||
| 64 | <listitem><para><emphasis><filename>core-image-basic</filename>:</emphasis> | ||
| 65 | A console-only image with more full-featured Linux system | ||
| 66 | functionality installed.</para></listitem> | ||
| 67 | <listitem><para><emphasis><filename>core-image-lsb</filename>:</emphasis> | ||
| 68 | An image that conforms to the Linux Standard Base (LSB) specification.</para></listitem> | ||
| 69 | <listitem><para><emphasis><filename>core-image-lsb-dev</filename>:</emphasis> | ||
| 70 | A <filename>core-image-lsb</filename> image that is suitable for development work | ||
| 71 | using the host. | ||
| 72 | The image includes headers and libraries you can use in a host development | ||
| 73 | environment. | ||
| 74 | </para></listitem> | ||
| 75 | <listitem><para><emphasis><filename>core-image-lsb-sdk</filename>:</emphasis> | ||
| 76 | A <filename>core-image-lsb</filename> that includes everything in meta-toolchain | ||
| 77 | but also includes development headers and libraries to form a complete standalone SDK. | ||
| 78 | This image is suitable for development using the target.</para></listitem> | ||
| 79 | <listitem><para><emphasis><filename>core-image-clutter</filename>:</emphasis> | ||
| 80 | An image with support for the Open GL-based toolkit Clutter, which enables development of | ||
| 81 | rich and animated graphical user interfaces.</para></listitem> | ||
| 82 | <listitem><para><emphasis><filename>core-image-sato</filename>:</emphasis> | ||
| 83 | An image with Sato support, a mobile environment and visual style that works well | ||
| 84 | with mobile devices. | ||
| 85 | The image supports X11 with a Sato theme and applications such as | ||
| 86 | a terminal, editor, file manager, media player, and so forth.</para></listitem> | ||
| 87 | <listitem><para><emphasis><filename>core-image-sato-dev</filename>:</emphasis> | ||
| 88 | A <filename>core-image-sato</filename> image suitable for development | ||
| 89 | using the host. | ||
| 90 | The image includes libraries needed to build applications on the device itself, | ||
| 91 | testing and profiling tools, and debug symbols. | ||
| 92 | This image was formerly <filename>core-image-sdk</filename>.</para></listitem> | ||
| 93 | <listitem><para><emphasis><filename>core-image-sato-sdk</filename>:</emphasis> | ||
| 94 | A <filename>core-image-sato</filename> image that includes everything in meta-toolchain. | ||
| 95 | The image also includes development headers and libraries to form a complete standalone SDK | ||
| 96 | and is suitable for development using the target.</para></listitem> | ||
| 97 | <listitem><para><emphasis><filename>core-image-rt</filename>:</emphasis> | ||
| 98 | A <filename>core-image-minimal</filename> image plus a real-time test suite and | ||
| 99 | tools appropriate for real-time use.</para></listitem> | ||
| 100 | <listitem><para><emphasis><filename>core-image-rt-sdk</filename>:</emphasis> | ||
| 101 | A <filename>core-image-rt</filename> image that includes everything in | ||
| 102 | <filename>meta-toolchain</filename>. | ||
| 103 | The image also includes development headers and libraries to form a complete | ||
| 104 | stand-alone SDK and is suitable for development using the target.</para></listitem> | ||
| 105 | <listitem><para><emphasis><filename>core-image-gtk-directfb</filename>:</emphasis> | ||
| 106 | An image that uses <filename>gtk+</filename> over <filename>directfb</filename> | ||
| 107 | instead of X11. | ||
| 108 | In order to build, this image requires specific distro configuration that enables | ||
| 109 | <filename>gtk</filename> over <filename>directfb</filename>.</para></listitem> | ||
| 110 | <listitem><para><emphasis><filename>build-appliance-image</filename>:</emphasis> | ||
| 111 | An image you can boot and run using either the | ||
| 112 | <ulink url='http://www.vmware.com/products/player/overview.html'>VMware Player</ulink> | ||
| 113 | or <ulink url='http://www.vmware.com/products/workstation/overview.html'>VMware Workstation</ulink>. | ||
| 114 | For more information on this image, see the | ||
| 115 | <ulink url='&YOCTO_HOME_URL;/documentation/build-appliance'>Build Appliance</ulink> page on | ||
| 116 | the Yocto Project website.</para></listitem> | ||
| 117 | </itemizedlist> | ||
| 118 | |||
| 119 | <tip> | ||
| 120 | From the Yocto Project release 1.1 onwards, <filename>-live</filename> and | ||
| 121 | <filename>-directdisk</filename> images have been replaced by a "live" | ||
| 122 | option in <filename>IMAGE_FSTYPES</filename> that will work with any image to produce an | ||
| 123 | image file that can be | ||
| 124 | copied directly to a CD or USB device and run as is. | ||
| 125 | To build a live image, simply add | ||
| 126 | "live" to <filename>IMAGE_FSTYPES</filename> within the <filename>local.conf</filename> | ||
| 127 | file or wherever appropriate and then build the desired image as normal. | ||
| 128 | </tip> | ||
| 129 | </chapter> | ||
| 130 | <!-- | ||
| 131 | vim: expandtab tw=80 ts=4 | ||
| 132 | --> | ||
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| 4 | <xsl:import href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl" /> | ||
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| 1 | <?xml version="1.0" encoding="UTF-8"?> | ||
| 2 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> | ||
| 3 | <html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title></title><link rel="stylesheet" type="text/css" href="ref-style.css" /><meta name="generator" content="DocBook XSL Stylesheets V1.76.1" /></head><body><div xml:lang="en" class="book" lang="en"><div class="titlepage"><div><div><h1 class="title"><a id="ref-manual"></a></h1></div><div><div class="authorgroup"> | ||
| 4 | <div class="author"><h3 class="author"><span class="firstname">Richard</span> <span class="surname">Purdie</span></h3><div class="affiliation"> | ||
| 5 | <span class="orgname">Linux Foundation<br /></span> | ||
| 6 | </div><code class="email"><<a class="email" href="mailto:richard.purdie@linuxfoundation.org">richard.purdie@linuxfoundation.org</a>></code></div> | ||
| 7 | |||
| 8 | </div></div><div><p class="copyright">Copyright © 2010-2013 Linux Foundation</p></div><div><div class="legalnotice" title="Legal Notice"><a id="idm153280"></a> | ||
| 9 | <p> | ||
| 10 | Permission is granted to copy, distribute and/or modify this document under | ||
| 11 | the terms of the <a class="ulink" href="http://creativecommons.org/licenses/by-sa/2.0/uk/" target="_top">Creative Commons Attribution-Share Alike 2.0 UK: England & Wales</a> as published by Creative Commons. | ||
| 12 | </p> | ||
| 13 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 14 | Due to production processes, there could be differences between the Yocto Project | ||
| 15 | documentation bundled in the release tarball and the | ||
| 16 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/ref-manual/ref-manual.html" target="_top">Yocto Project Reference Manual</a> on | ||
| 17 | the <a class="ulink" href="http://www.yoctoproject.org" target="_top">Yocto Project</a> website. | ||
| 18 | For the latest version of this manual, see the manual on the website. | ||
| 19 | </div> | ||
| 20 | </div></div><div><div class="revhistory"><table border="1" width="100%" summary="Revision history"><tr><th align="left" valign="top" colspan="2"><strong>Revision History</strong></th></tr> | ||
| 21 | <tr><td align="left">Revision 4.0+git</td><td align="left">24 November 2010</td></tr><tr><td align="left" colspan="2">Released with the Yocto Project 0.9 Release</td></tr> | ||
| 22 | <tr><td align="left">Revision 1.0</td><td align="left">6 April 2011</td></tr><tr><td align="left" colspan="2">Released with the Yocto Project 1.0 Release.</td></tr> | ||
| 23 | <tr><td align="left">Revision 1.0.1</td><td align="left">23 May 2011</td></tr><tr><td align="left" colspan="2">Released with the Yocto Project 1.0.1 Release.</td></tr> | ||
| 24 | <tr><td align="left">Revision 1.1</td><td align="left">6 October 2011</td></tr><tr><td align="left" colspan="2">Released with the Yocto Project 1.1 Release.</td></tr> | ||
| 25 | <tr><td align="left">Revision 1.2</td><td align="left">April 2012</td></tr><tr><td align="left" colspan="2">Released with the Yocto Project 1.2 Release.</td></tr> | ||
| 26 | <tr><td align="left">Revision 1.3</td><td align="left">October 2012</td></tr><tr><td align="left" colspan="2">Released with the Yocto Project 1.3 Release.</td></tr> | ||
| 27 | <tr><td align="left">Revision 1.4</td><td align="left">Sometime in 2013</td></tr><tr><td align="left" colspan="2">Released with the Yocto Project 1.4 Release.</td></tr> | ||
| 28 | </table></div></div></div><hr /></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="chapter"><a href="#intro">1. Introduction</a></span></dt><dd><dl><dt><span class="section"><a href="#intro-welcome">1.1. Introduction</a></span></dt><dt><span class="section"><a href="#intro-manualoverview">1.2. Documentation Overview</a></span></dt><dt><span class="section"><a href="#intro-requirements">1.3. System Requirements</a></span></dt><dd><dl><dt><span class="section"><a href="#detailed-supported-distros">1.3.1. Supported Linux Distributions</a></span></dt><dt><span class="section"><a href="#required-packages-for-the-host-development-system">1.3.2. Required Packages for the Host Development System</a></span></dt></dl></dd><dt><span class="section"><a href="#intro-getit">1.4. Obtaining the Yocto Project</a></span></dt><dt><span class="section"><a href="#intro-getit-dev">1.5. Development Checkouts</a></span></dt></dl></dd><dt><span class="chapter"><a href="#usingpoky">2. Using the Yocto Project</a></span></dt><dd><dl><dt><span class="section"><a href="#usingpoky-build">2.1. Running a Build</a></span></dt><dd><dl><dt><span class="section"><a href="#build-overview">2.1.1. Build Overview</a></span></dt><dt><span class="section"><a href="#building-an-image-using-gpl-components">2.1.2. Building an Image Using GPL Components</a></span></dt></dl></dd><dt><span class="section"><a href="#usingpoky-install">2.2. Installing and Using the Result</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging">2.3. Debugging Build Failures</a></span></dt><dd><dl><dt><span class="section"><a href="#usingpoky-debugging-taskfailures">2.3.1. Task Failures</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging-taskrunning">2.3.2. Running Specific Tasks</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging-dependencies">2.3.3. Dependency Graphs</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging-bitbake">2.3.4. General BitBake Problems</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging-buildfile">2.3.5. Building with No Dependencies</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging-variables">2.3.6. Variables</a></span></dt><dt><span class="section"><a href="#recipe-logging-mechanisms">2.3.7. Recipe Logging Mechanisms</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging-others">2.3.8. Other Tips</a></span></dt></dl></dd><dt><span class="section"><a href="#maintaining-build-output-quality">2.4. Maintaining Build Output Quality</a></span></dt><dd><dl><dt><span class="section"><a href="#enabling-and-disabling-build-history">2.4.1. Enabling and Disabling Build History</a></span></dt><dt><span class="section"><a href="#understanding-what-the-build-history-contains">2.4.2. Understanding What the Build History Contains</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="#technical-details">3. Technical Details</a></span></dt><dd><dl><dt><span class="section"><a href="#usingpoky-components">3.1. Yocto Project Components</a></span></dt><dd><dl><dt><span class="section"><a href="#usingpoky-components-bitbake">3.1.1. BitBake</a></span></dt><dt><span class="section"><a href="#usingpoky-components-metadata">3.1.2. Metadata (Recipes)</a></span></dt><dt><span class="section"><a href="#usingpoky-components-classes">3.1.3. Classes</a></span></dt><dt><span class="section"><a href="#usingpoky-components-configuration">3.1.4. Configuration</a></span></dt></dl></dd><dt><span class="section"><a href="#shared-state-cache">3.2. Shared State Cache</a></span></dt><dd><dl><dt><span class="section"><a href="#overall-architecture">3.2.1. Overall Architecture</a></span></dt><dt><span class="section"><a href="#checksums">3.2.2. Checksums (Signatures)</a></span></dt><dt><span class="section"><a href="#shared-state">3.2.3. Shared State</a></span></dt><dt><span class="section"><a href="#tips-and-tricks">3.2.4. Tips and Tricks</a></span></dt></dl></dd><dt><span class="section"><a href="#x32">3.3. x32</a></span></dt><dd><dl><dt><span class="section"><a href="#support">3.3.1. Support</a></span></dt><dt><span class="section"><a href="#future-development-and-limitations">3.3.2. Future Development and Limitations</a></span></dt><dt><span class="section"><a href="#using-x32-right-now">3.3.3. Using x32 Right Now</a></span></dt></dl></dd><dt><span class="section"><a href="#licenses">3.4. Licenses</a></span></dt><dd><dl><dt><span class="section"><a href="#usingpoky-configuring-LIC_FILES_CHKSUM">3.4.1. Tracking License Changes</a></span></dt><dt><span class="section"><a href="#enabling-commercially-licensed-recipes">3.4.2. Enabling Commercially Licensed Recipes</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="#migration">4. Migrating to a Newer Yocto Project Release</a></span></dt><dd><dl><dt><span class="section"><a href="#moving-to-the-yocto-project-1.3-release">4.1. Moving to the Yocto Project 1.3 Release</a></span></dt><dd><dl><dt><span class="section"><a href="#1.3-local-configuration">4.1.1. Local Configuration</a></span></dt><dt><span class="section"><a href="#1.3-recipes">4.1.2. Recipes</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="#ref-structure">5. Source Directory Structure</a></span></dt><dd><dl><dt><span class="section"><a href="#structure-core">5.1. Top level core components</a></span></dt><dd><dl><dt><span class="section"><a href="#structure-core-bitbake">5.1.1. <code class="filename">bitbake/</code></a></span></dt><dt><span class="section"><a href="#structure-core-build">5.1.2. <code class="filename">build/</code></a></span></dt><dt><span class="section"><a href="#handbook">5.1.3. <code class="filename">documentation</code></a></span></dt><dt><span class="section"><a href="#structure-core-meta">5.1.4. <code class="filename">meta/</code></a></span></dt><dt><span class="section"><a href="#structure-core-meta-yocto">5.1.5. <code class="filename">meta-yocto/</code></a></span></dt><dt><span class="section"><a href="#structure-core-meta-yocto-bsp">5.1.6. <code class="filename">meta-yocto-bsp/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-hob">5.1.7. <code class="filename">meta-hob/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-skeleton">5.1.8. <code class="filename">meta-skeleton/</code></a></span></dt><dt><span class="section"><a href="#structure-core-scripts">5.1.9. <code class="filename">scripts/</code></a></span></dt><dt><span class="section"><a href="#structure-core-script">5.1.10. <code class="filename">oe-init-build-env</code></a></span></dt><dt><span class="section"><a href="#structure-basic-top-level">5.1.11. <code class="filename">LICENSE, README, and README.hardware</code></a></span></dt></dl></dd><dt><span class="section"><a href="#structure-build">5.2. The Build Directory - <code class="filename">build/</code></a></span></dt><dd><dl><dt><span class="section"><a href="#structure-build-pseudodone">5.2.1. <code class="filename">build/pseudodone</code></a></span></dt><dt><span class="section"><a href="#structure-build-conf-local.conf">5.2.2. <code class="filename">build/conf/local.conf</code></a></span></dt><dt><span class="section"><a href="#structure-build-conf-bblayers.conf">5.2.3. <code class="filename">build/conf/bblayers.conf</code></a></span></dt><dt><span class="section"><a href="#structure-build-conf-sanity_info">5.2.4. <code class="filename">build/conf/sanity_info</code></a></span></dt><dt><span class="section"><a href="#structure-build-downloads">5.2.5. <code class="filename">build/downloads/</code></a></span></dt><dt><span class="section"><a href="#structure-build-sstate-cache">5.2.6. <code class="filename">build/sstate-cache/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp">5.2.7. <code class="filename">build/tmp/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-buildstats">5.2.8. <code class="filename">build/tmp/buildstats/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-cache">5.2.9. <code class="filename">build/tmp/cache/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-deploy">5.2.10. <code class="filename">build/tmp/deploy/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-deploy-deb">5.2.11. <code class="filename">build/tmp/deploy/deb/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-deploy-rpm">5.2.12. <code class="filename">build/tmp/deploy/rpm/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-deploy-licenses">5.2.13. <code class="filename">build/tmp/deploy/licenses/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-deploy-images">5.2.14. <code class="filename">build/tmp/deploy/images/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-deploy-ipk">5.2.15. <code class="filename">build/tmp/deploy/ipk/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-sysroots">5.2.16. <code class="filename">build/tmp/sysroots/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-stamps">5.2.17. <code class="filename">build/tmp/stamps/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-log">5.2.18. <code class="filename">build/tmp/log/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-pkgdata">5.2.19. <code class="filename">build/tmp/pkgdata/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-work">5.2.20. <code class="filename">build/tmp/work/</code></a></span></dt></dl></dd><dt><span class="section"><a href="#structure-meta">5.3. The Metadata - <code class="filename">meta/</code></a></span></dt><dd><dl><dt><span class="section"><a href="#structure-meta-classes">5.3.1. <code class="filename">meta/classes/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-conf">5.3.2. <code class="filename">meta/conf/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-conf-machine">5.3.3. <code class="filename">meta/conf/machine/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-conf-distro">5.3.4. <code class="filename">meta/conf/distro/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-bsp">5.3.5. <code class="filename">meta/recipes-bsp/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-connectivity">5.3.6. <code class="filename">meta/recipes-connectivity/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-core">5.3.7. <code class="filename">meta/recipes-core/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-devtools">5.3.8. <code class="filename">meta/recipes-devtools/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-extended">5.3.9. <code class="filename">meta/recipes-extended/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-gnome">5.3.10. <code class="filename">meta/recipes-gnome/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-graphics">5.3.11. <code class="filename">meta/recipes-graphics/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-kernel">5.3.12. <code class="filename">meta/recipes-kernel/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-multimedia">5.3.13. <code class="filename">meta/recipes-multimedia/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-qt">5.3.14. <code class="filename">meta/recipes-qt/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-rt">5.3.15. <code class="filename">meta/recipes-rt/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-sato">5.3.16. <code class="filename">meta/recipes-sato/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-support">5.3.17. <code class="filename">meta/recipes-support/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-site">5.3.18. <code class="filename">meta/site/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-txt">5.3.19. <code class="filename">meta/recipes.txt</code></a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="#ref-bitbake">6. BitBake</a></span></dt><dd><dl><dt><span class="section"><a href="#ref-bitbake-parsing">6.1. Parsing</a></span></dt><dt><span class="section"><a href="#ref-bitbake-providers">6.2. Preferences and Providers</a></span></dt><dt><span class="section"><a href="#ref-bitbake-dependencies">6.3. Dependencies</a></span></dt><dt><span class="section"><a href="#ref-bitbake-tasklist">6.4. The Task List</a></span></dt><dt><span class="section"><a href="#ref-bitbake-runtask">6.5. Running a Task</a></span></dt><dt><span class="section"><a href="#ref-bitbake-commandline">6.6. BitBake Command Line</a></span></dt><dt><span class="section"><a href="#ref-bitbake-fetchers">6.7. Fetchers</a></span></dt></dl></dd><dt><span class="chapter"><a href="#ref-classes">7. Classes</a></span></dt><dd><dl><dt><span class="section"><a href="#ref-classes-base">7.1. The base class - <code class="filename">base.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-autotools">7.2. Autotooled Packages - <code class="filename">autotools.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-update-alternatives">7.3. Alternatives - <code class="filename">update-alternatives.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-update-rc.d">7.4. Initscripts - <code class="filename">update-rc.d.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-binconfig">7.5. Binary config scripts - <code class="filename">binconfig.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-debian">7.6. Debian renaming - <code class="filename">debian.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-pkgconfig">7.7. Pkg-config - <code class="filename">pkgconfig.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-src-distribute">7.8. Distribution of sources - <code class="filename">src_distribute_local.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-perl">7.9. Perl modules - <code class="filename">cpan.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-distutils">7.10. Python extensions - <code class="filename">distutils.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-devshell">7.11. Developer Shell - <code class="filename">devshell.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-packagegroup">7.12. Package Groups - <code class="filename">packagegroup.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-package">7.13. Packaging - <code class="filename">package*.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-kernel">7.14. Building kernels - <code class="filename">kernel.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-image">7.15. Creating images - <code class="filename">image.bbclass</code> and <code class="filename">rootfs*.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-sanity">7.16. Host System sanity checks - <code class="filename">sanity.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-insane">7.17. Generated output quality assurance checks - <code class="filename">insane.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-siteinfo">7.18. Autotools configuration data cache - <code class="filename">siteinfo.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-useradd">7.19. Adding Users - <code class="filename">useradd.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-externalsrc">7.20. Using External Source - <code class="filename">externalsrc.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-others">7.21. Other Classes</a></span></dt></dl></dd><dt><span class="chapter"><a href="#ref-images">8. Images</a></span></dt><dt><span class="chapter"><a href="#ref-features">9. Reference: Features</a></span></dt><dd><dl><dt><span class="section"><a href="#ref-features-distro">9.1. Distro</a></span></dt><dt><span class="section"><a href="#ref-features-machine">9.2. Machine</a></span></dt><dt><span class="section"><a href="#ref-features-image">9.3. Images</a></span></dt><dt><span class="section"><a href="#ref-features-backfill">9.4. Feature Backfilling</a></span></dt></dl></dd><dt><span class="chapter"><a href="#ref-variables-glos">10. Variables Glossary</a></span></dt><dd><dl><dt><span class="glossary"><a href="#ref-variables-glossary">Glossary</a></span></dt></dl></dd><dt><span class="chapter"><a href="#ref-varlocality">11. Variable Context</a></span></dt><dd><dl><dt><span class="section"><a href="#ref-varlocality-configuration">11.1. Configuration</a></span></dt><dd><dl><dt><span class="section"><a href="#ref-varlocality-config-distro">11.1.1. Distribution (Distro)</a></span></dt><dt><span class="section"><a href="#ref-varlocality-config-machine">11.1.2. Machine</a></span></dt><dt><span class="section"><a href="#ref-varlocality-config-local">11.1.3. Local</a></span></dt></dl></dd><dt><span class="section"><a href="#ref-varlocality-recipes">11.2. Recipes</a></span></dt><dd><dl><dt><span class="section"><a href="#ref-varlocality-recipe-required">11.2.1. Required</a></span></dt><dt><span class="section"><a href="#ref-varlocality-recipe-dependencies">11.2.2. Dependencies</a></span></dt><dt><span class="section"><a href="#ref-varlocality-recipe-paths">11.2.3. Paths</a></span></dt><dt><span class="section"><a href="#ref-varlocality-recipe-build">11.2.4. Extra Build Information</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="#faq">12. FAQ</a></span></dt><dt><span class="chapter"><a href="#resources">13. Contributing to the Yocto Project</a></span></dt><dd><dl><dt><span class="section"><a href="#resources-intro">13.1. Introduction</a></span></dt><dt><span class="section"><a href="#resources-bugtracker">13.2. Tracking Bugs</a></span></dt><dt><span class="section"><a href="#resources-mailinglist">13.3. Mailing lists</a></span></dt><dt><span class="section"><a href="#resources-irc">13.4. Internet Relay Chat (IRC)</a></span></dt><dt><span class="section"><a href="#resources-links">13.5. Links</a></span></dt><dt><span class="section"><a href="#resources-contributions">13.6. Contributions</a></span></dt></dl></dd></dl></div> | ||
| 29 | |||
| 30 | |||
| 31 | <div class="chapter" title="Chapter 1. Introduction"><div class="titlepage"><div><div><h2 class="title"><a id="intro"></a>Chapter 1. Introduction</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="section"><a href="#intro-welcome">1.1. Introduction</a></span></dt><dt><span class="section"><a href="#intro-manualoverview">1.2. Documentation Overview</a></span></dt><dt><span class="section"><a href="#intro-requirements">1.3. System Requirements</a></span></dt><dd><dl><dt><span class="section"><a href="#detailed-supported-distros">1.3.1. Supported Linux Distributions</a></span></dt><dt><span class="section"><a href="#required-packages-for-the-host-development-system">1.3.2. Required Packages for the Host Development System</a></span></dt></dl></dd><dt><span class="section"><a href="#intro-getit">1.4. Obtaining the Yocto Project</a></span></dt><dt><span class="section"><a href="#intro-getit-dev">1.5. Development Checkouts</a></span></dt></dl></div><div class="section" title="1.1. Introduction"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="intro-welcome"></a>1.1. Introduction</h2></div></div></div><p> | ||
| 32 | This manual provides reference information for the current release of the Yocto Project. | ||
| 33 | The Yocto Project is an open-source collaboration project focused on embedded Linux | ||
| 34 | developers. | ||
| 35 | Amongst other things, the Yocto Project uses the OpenEmbedded build system, which | ||
| 36 | is based on the Poky project, to construct complete Linux images. | ||
| 37 | You can find complete introductory and getting started information on the Yocto Project | ||
| 38 | by reading the | ||
| 39 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/yocto-project-qs/yocto-project-qs.html" target="_top">Yocto Project Quick Start</a>. | ||
| 40 | For task-based information using the Yocto Project, see the | ||
| 41 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html" target="_top">Yocto Project Development Manual</a>. | ||
| 42 | You can also find lots of information on the Yocto Project on the | ||
| 43 | <a class="ulink" href="http://www.yoctoproject.org" target="_top">Yocto Project website</a>. | ||
| 44 | </p></div><div class="section" title="1.2. Documentation Overview"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="intro-manualoverview"></a>1.2. Documentation Overview</h2></div></div></div><p> | ||
| 45 | This reference manual consists of the following: | ||
| 46 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em> | ||
| 47 | <a class="link" href="#usingpoky" title="Chapter 2. Using the Yocto Project">Using the Yocto Project</a>:</em></span> This chapter | ||
| 48 | provides an overview of the components that make up the Yocto Project | ||
| 49 | followed by information about debugging images created in the Yocto Project. | ||
| 50 | </p></li><li class="listitem"><p><span class="emphasis"><em> | ||
| 51 | <a class="link" href="#technical-details" title="Chapter 3. Technical Details">Technical Details</a>:</em></span> | ||
| 52 | This chapter describes fundamental Yocto Project components as well as an explanation | ||
| 53 | behind how the Yocto Project uses shared state (sstate) cache to speed build time. | ||
| 54 | </p></li><li class="listitem"><p><span class="emphasis"><em> | ||
| 55 | <a class="link" href="#ref-structure" title="Chapter 5. Source Directory Structure">Directory Structure</a>:</em></span> | ||
| 56 | This chapter describes the | ||
| 57 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">source directory</a> created | ||
| 58 | either by unpacking a released Yocto Project tarball on your host development system, | ||
| 59 | or by cloning the upstream | ||
| 60 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#poky" target="_top">Poky</a> Git repository. | ||
| 61 | </p></li><li class="listitem"><p><span class="emphasis"><em> | ||
| 62 | <a class="link" href="#ref-bitbake" title="Chapter 6. BitBake">BitBake</a>:</em></span> | ||
| 63 | This chapter provides an overview of the BitBake tool and its role within | ||
| 64 | the Yocto Project.</p></li><li class="listitem"><p><span class="emphasis"><em> | ||
| 65 | <a class="link" href="#ref-classes" title="Chapter 7. Classes">Classes</a>:</em></span> | ||
| 66 | This chapter describes the classes used in the Yocto Project.</p></li><li class="listitem"><p><span class="emphasis"><em> | ||
| 67 | <a class="link" href="#ref-images" title="Chapter 8. Images">Images</a>:</em></span> | ||
| 68 | This chapter describes the standard images that the Yocto Project supports. | ||
| 69 | </p></li><li class="listitem"><p><span class="emphasis"><em> | ||
| 70 | <a class="link" href="#ref-features" title="Chapter 9. Reference: Features">Features</a>:</em></span> | ||
| 71 | This chapter describes mechanisms for creating distribution, machine, and image | ||
| 72 | features during the build process using the OpenEmbedded build system.</p></li><li class="listitem"><p><span class="emphasis"><em> | ||
| 73 | <a class="link" href="#ref-variables-glos" title="Chapter 10. Variables Glossary">Variables Glossary</a>:</em></span> | ||
| 74 | This chapter presents most variables used by the OpenEmbedded build system, which | ||
| 75 | using BitBake. | ||
| 76 | Entries describe the function of the variable and how to apply them. | ||
| 77 | </p></li><li class="listitem"><p><span class="emphasis"><em> | ||
| 78 | <a class="link" href="#ref-varlocality" title="Chapter 11. Variable Context">Variable Context</a>:</em></span> | ||
| 79 | This chapter provides variable locality or context.</p></li><li class="listitem"><p><span class="emphasis"><em> | ||
| 80 | <a class="link" href="#faq" title="Chapter 12. FAQ">FAQ</a>:</em></span> | ||
| 81 | This chapter provides answers for commonly asked questions in the Yocto Project | ||
| 82 | development environment.</p></li><li class="listitem"><p><span class="emphasis"><em> | ||
| 83 | <a class="link" href="#resources" title="Chapter 13. Contributing to the Yocto Project">Contributing to the Yocto Project</a>:</em></span> | ||
| 84 | This chapter provides guidance on how you can contribute back to the Yocto | ||
| 85 | Project.</p></li></ul></div><p> | ||
| 86 | </p></div><div class="section" title="1.3. System Requirements"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="intro-requirements"></a>1.3. System Requirements</h2></div></div></div><p> | ||
| 87 | For general Yocto Project system requirements, see the | ||
| 88 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/yocto-project-qs/yocto-project-qs.html#yp-resources" target="_top">What You Need and How You Get It</a>" section | ||
| 89 | in the Yocto Project Quick Start. | ||
| 90 | The remainder of this section provides details on system requirements | ||
| 91 | not covered in the Yocto Project Quick Start. | ||
| 92 | </p><div class="section" title="1.3.1. Supported Linux Distributions"><div class="titlepage"><div><div><h3 class="title"><a id="detailed-supported-distros"></a>1.3.1. Supported Linux Distributions</h3></div></div></div><p> | ||
| 93 | Currently, the Yocto Project is supported on the following distributions: | ||
| 94 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>Ubuntu 10.04.4 LTS</p></li><li class="listitem"><p>Ubuntu 11.10</p></li><li class="listitem"><p>Ubuntu 12.04.1 LTS</p></li><li class="listitem"><p>Ubuntu 12.04.1 LTS</p></li><li class="listitem"><p>Ubuntu 12.10</p></li><li class="listitem"><p>Fedora release 16 (Verne)</p></li><li class="listitem"><p>Fedora release 17 (Beefy Miracle)</p></li><li class="listitem"><p>Fedora release 18 (Spherical Cow)</p></li><li class="listitem"><p>CentOS release 5.6 (Final)</p></li><li class="listitem"><p>CentOS release 5.7 (Final)</p></li><li class="listitem"><p>CentOS release 5.8 (Final)</p></li><li class="listitem"><p>CentOS release 6.3 (Final)</p></li><li class="listitem"><p>Debian GNU/Linux 6.0.6 (squeeze)</p></li><li class="listitem"><p>openSUSE 11.4</p></li><li class="listitem"><p>openSUSE 12.1</p></li><li class="listitem"><p>openSUSE 12.2</p></li></ul></div><p> | ||
| 95 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 96 | For additional information on distributions that support the | ||
| 97 | Yocto Project, see the | ||
| 98 | <a class="ulink" href="https://wiki.yoctoproject.org/wiki/Distribution_Support" target="_top">Distribution Support</a> wiki page. | ||
| 99 | </div></div><div class="section" title="1.3.2. Required Packages for the Host Development System"><div class="titlepage"><div><div><h3 class="title"><a id="required-packages-for-the-host-development-system"></a>1.3.2. Required Packages for the Host Development System</h3></div></div></div><p> | ||
| 100 | The list of packages you need on the host development system can | ||
| 101 | be large when covering all build scenarios using the Yocto Project. | ||
| 102 | This section provides required packages by Linux distribution and | ||
| 103 | further categorized by function. | ||
| 104 | </p><div class="section" title="1.3.2.1. Ubuntu"><div class="titlepage"><div><div><h4 class="title"><a id="ubuntu-packages"></a>1.3.2.1. Ubuntu</h4></div></div></div><p> | ||
| 105 | The following list shows the required packages by function | ||
| 106 | given a supported Ubuntu Linux distribution: | ||
| 107 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>Essentials:</em></span> | ||
| 108 | Packages needed to build an image on a headless | ||
| 109 | system: | ||
| 110 | </p><pre class="literallayout"> | ||
| 111 | $ sudo apt-get install gawk wget git-core diffstat unzip texinfo \ | ||
| 112 | build-essential chrpath | ||
| 113 | </pre></li><li class="listitem"><p><span class="emphasis"><em>Graphical Extras:</em></span> | ||
| 114 | Packages recommended if the host system has graphics support: | ||
| 115 | </p><pre class="literallayout"> | ||
| 116 | $ sudo apt-get install libsdl1.2-dev xterm | ||
| 117 | </pre></li><li class="listitem"><p><span class="emphasis"><em>Documentation:</em></span> | ||
| 118 | Packages needed if you are going to build out the | ||
| 119 | Yocto Project documentation manuals: | ||
| 120 | </p><pre class="literallayout"> | ||
| 121 | $ sudo apt-get install make xsltproc docbook-utils fop | ||
| 122 | </pre></li><li class="listitem"><p><span class="emphasis"><em>ADT Installer Extras:</em></span> | ||
| 123 | Packages needed if you are going to be using the | ||
| 124 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/adt-manual/adt-manual.html#using-the-adt-installer" target="_top">Application Development Toolkit (ADT) Installer</a>: | ||
| 125 | </p><pre class="literallayout"> | ||
| 126 | $ sudo apt-get install autoconf automake libtool libglib2.0-dev | ||
| 127 | </pre></li></ul></div><p> | ||
| 128 | </p></div><div class="section" title="1.3.2.2. Fedora Packages"><div class="titlepage"><div><div><h4 class="title"><a id="fedora-packages"></a>1.3.2.2. Fedora Packages</h4></div></div></div><p> | ||
| 129 | The following list shows the required packages by function | ||
| 130 | given a supported Fedora Linux distribution: | ||
| 131 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>Essentials:</em></span> | ||
| 132 | Packages needed to build an image for a headless | ||
| 133 | system: | ||
| 134 | </p><pre class="literallayout"> | ||
| 135 | $ sudo yum install gawk make wget tar bzip2 gzip python unzip perl patch \ | ||
| 136 | diffutils diffstat git cpp gcc gcc-c++ eglibc-devel texinfo chrpath \ | ||
| 137 | ccache | ||
| 138 | </pre></li><li class="listitem"><p><span class="emphasis"><em>Graphical Extras:</em></span> | ||
| 139 | Packages recommended if the host system has graphics support: | ||
| 140 | </p><pre class="literallayout"> | ||
| 141 | $ sudo yum install SDL-devel xterm | ||
| 142 | </pre></li><li class="listitem"><p><span class="emphasis"><em>Documentation:</em></span> | ||
| 143 | Packages needed if you are going to build out the | ||
| 144 | Yocto Project documentation manuals: | ||
| 145 | </p><pre class="literallayout"> | ||
| 146 | $ sudo yum install make docbook-style-dsssl docbook-style-xsl \ | ||
| 147 | docbook-dtds docbook-utils fop libxslt | ||
| 148 | </pre></li><li class="listitem"><p><span class="emphasis"><em>ADT Installer Extras:</em></span> | ||
| 149 | Packages needed if you are going to be using the | ||
| 150 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/adt-manual/adt-manual.html#using-the-adt-installer" target="_top">Application Development Toolkit (ADT) Installer</a>: | ||
| 151 | </p><pre class="literallayout"> | ||
| 152 | $ sudo yum install autoconf automake libtool glib2-devel | ||
| 153 | </pre></li></ul></div><p> | ||
| 154 | </p></div><div class="section" title="1.3.2.3. OpenSUSE Packages"><div class="titlepage"><div><div><h4 class="title"><a id="opensuse-packages"></a>1.3.2.3. OpenSUSE Packages</h4></div></div></div><p> | ||
| 155 | The following list shows the required packages by function | ||
| 156 | given a supported OpenSUSE Linux distribution: | ||
| 157 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>Essentials:</em></span> | ||
| 158 | Packages needed to build an image for a headless | ||
| 159 | system: | ||
| 160 | </p><pre class="literallayout"> | ||
| 161 | $ sudo zypper install python gcc gcc-c++ git chrpath make wget python-xml \ | ||
| 162 | diffstat texinfo python-curses | ||
| 163 | </pre></li><li class="listitem"><p><span class="emphasis"><em>Graphical Extras:</em></span> | ||
| 164 | Packages recommended if the host system has graphics support: | ||
| 165 | </p><pre class="literallayout"> | ||
| 166 | $ sudo zypper install libSDL-devel xterm | ||
| 167 | </pre></li><li class="listitem"><p><span class="emphasis"><em>Documentation:</em></span> | ||
| 168 | Packages needed if you are going to build out the | ||
| 169 | Yocto Project documentation manuals: | ||
| 170 | </p><pre class="literallayout"> | ||
| 171 | $ sudo zypper install make fop xsltproc | ||
| 172 | </pre></li><li class="listitem"><p><span class="emphasis"><em>ADT Installer Extras:</em></span> | ||
| 173 | Packages needed if you are going to be using the | ||
| 174 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/adt-manual/adt-manual.html#using-the-adt-installer" target="_top">Application Development Toolkit (ADT) Installer</a>: | ||
| 175 | </p><pre class="literallayout"> | ||
| 176 | $ sudo zypper install autoconf automake libtool glib2-devel | ||
| 177 | </pre></li></ul></div><p> | ||
| 178 | </p></div><div class="section" title="1.3.2.4. CentOS Packages"><div class="titlepage"><div><div><h4 class="title"><a id="centos-packages"></a>1.3.2.4. CentOS Packages</h4></div></div></div><p> | ||
| 179 | The following list shows the required packages by function | ||
| 180 | given a supported CentOS Linux distribution: | ||
| 181 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>Essentials:</em></span> | ||
| 182 | Packages needed to build an image for a headless | ||
| 183 | system: | ||
| 184 | </p><pre class="literallayout"> | ||
| 185 | $ sudo yum -y install gawk make wget tar bzip2 gzip python unzip perl patch \ | ||
| 186 | diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath | ||
| 187 | </pre></li><li class="listitem"><p><span class="emphasis"><em>Graphical Extras:</em></span> | ||
| 188 | Packages recommended if the host system has graphics support: | ||
| 189 | </p><pre class="literallayout"> | ||
| 190 | $ sudo yum -y install SDL-devel xterm | ||
| 191 | </pre></li><li class="listitem"><p><span class="emphasis"><em>Documentation:</em></span> | ||
| 192 | Packages needed if you are going to build out the | ||
| 193 | Yocto Project documentation manuals: | ||
| 194 | </p><pre class="literallayout"> | ||
| 195 | $ sudo yum -y install make docbook-style-dsssl docbook-style-xsl \ | ||
| 196 | docbook-dtds docbook-utils fop libxslt | ||
| 197 | </pre></li><li class="listitem"><p><span class="emphasis"><em>ADT Installer Extras:</em></span> | ||
| 198 | Packages needed if you are going to be using the | ||
| 199 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/adt-manual/adt-manual.html#using-the-adt-installer" target="_top">Application Development Toolkit (ADT) Installer</a>: | ||
| 200 | </p><pre class="literallayout"> | ||
| 201 | $ sudo yum -y install autoconf automake libtool glib2-devel | ||
| 202 | </pre></li></ul></div><p> | ||
| 203 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3>Depending on the CentOS version you are using, other requirements | ||
| 204 | and dependencies might exist. | ||
| 205 | For details, you should look at the CentOS sections on the | ||
| 206 | <a class="ulink" href="https://wiki.yoctoproject.org/wiki/Poky/GettingStarted/Dependencies" target="_top">Poky/GettingStarted/Dependencies</a> | ||
| 207 | wiki page.</div><p> | ||
| 208 | </p></div></div></div><div class="section" title="1.4. Obtaining the Yocto Project"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="intro-getit"></a>1.4. Obtaining the Yocto Project</h2></div></div></div><p> | ||
| 209 | The Yocto Project development team makes the Yocto Project available through a number | ||
| 210 | of methods: | ||
| 211 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>Releases:</em></span> Stable, tested releases are available through | ||
| 212 | <a class="ulink" href="http://downloads.yoctoproject.org/releases/yocto/" target="_top">http://downloads.yoctoproject.org/releases/yocto/</a>.</p></li><li class="listitem"><p><span class="emphasis"><em>Nightly Builds:</em></span> These releases are available at | ||
| 213 | <a class="ulink" href="http://autobuilder.yoctoproject.org/nightly" target="_top">http://autobuilder.yoctoproject.org/nightly</a>. | ||
| 214 | These builds include Yocto Project releases, meta-toolchain tarball installation scripts, and | ||
| 215 | experimental builds.</p></li><li class="listitem"><p><span class="emphasis"><em>Yocto Project Website:</em></span> You can find releases | ||
| 216 | of the Yocto Project and supported BSPs at the | ||
| 217 | <a class="ulink" href="http://www.yoctoproject.org" target="_top">Yocto Project website</a>. | ||
| 218 | Along with these downloads, you can find lots of other information at this site. | ||
| 219 | </p></li></ul></div><p> | ||
| 220 | </p></div><div class="section" title="1.5. Development Checkouts"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="intro-getit-dev"></a>1.5. Development Checkouts</h2></div></div></div><p> | ||
| 221 | Development using the Yocto Project requires a local | ||
| 222 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 223 | You can set up the source directory by downloading a Yocto Project release tarball and unpacking it, | ||
| 224 | or by cloning a copy of the upstream | ||
| 225 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#poky" target="_top">Poky</a> Git repository. | ||
| 226 | For information on both these methods, see the | ||
| 227 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#getting-setup" target="_top">Getting Setup</a>" | ||
| 228 | section in the Yocto Project Development Manual. | ||
| 229 | </p></div></div> | ||
| 230 | |||
| 231 | <div class="chapter" title="Chapter 2. Using the Yocto Project"><div class="titlepage"><div><div><h2 class="title"><a id="usingpoky"></a>Chapter 2. Using the Yocto Project</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="section"><a href="#usingpoky-build">2.1. Running a Build</a></span></dt><dd><dl><dt><span class="section"><a href="#build-overview">2.1.1. Build Overview</a></span></dt><dt><span class="section"><a href="#building-an-image-using-gpl-components">2.1.2. Building an Image Using GPL Components</a></span></dt></dl></dd><dt><span class="section"><a href="#usingpoky-install">2.2. Installing and Using the Result</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging">2.3. Debugging Build Failures</a></span></dt><dd><dl><dt><span class="section"><a href="#usingpoky-debugging-taskfailures">2.3.1. Task Failures</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging-taskrunning">2.3.2. Running Specific Tasks</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging-dependencies">2.3.3. Dependency Graphs</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging-bitbake">2.3.4. General BitBake Problems</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging-buildfile">2.3.5. Building with No Dependencies</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging-variables">2.3.6. Variables</a></span></dt><dt><span class="section"><a href="#recipe-logging-mechanisms">2.3.7. Recipe Logging Mechanisms</a></span></dt><dt><span class="section"><a href="#usingpoky-debugging-others">2.3.8. Other Tips</a></span></dt></dl></dd><dt><span class="section"><a href="#maintaining-build-output-quality">2.4. Maintaining Build Output Quality</a></span></dt><dd><dl><dt><span class="section"><a href="#enabling-and-disabling-build-history">2.4.1. Enabling and Disabling Build History</a></span></dt><dt><span class="section"><a href="#understanding-what-the-build-history-contains">2.4.2. Understanding What the Build History Contains</a></span></dt></dl></dd></dl></div><p> | ||
| 232 | This chapter describes common usage for the Yocto Project. | ||
| 233 | The information is introductory in nature as other manuals in the Yocto Project | ||
| 234 | documentation set provide more details on how to use the Yocto Project. | ||
| 235 | </p><div class="section" title="2.1. Running a Build"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="usingpoky-build"></a>2.1. Running a Build</h2></div></div></div><p> | ||
| 236 | This section provides a summary of the build process and provides information | ||
| 237 | for less obvious aspects of the build process. | ||
| 238 | For general information on how to build an image using the OpenEmbedded build | ||
| 239 | system, see the | ||
| 240 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/yocto-project-qs/yocto-project-qs.html#building-image" target="_top">Building an Image</a>" | ||
| 241 | section of the Yocto Project Quick Start. | ||
| 242 | </p><div class="section" title="2.1.1. Build Overview"><div class="titlepage"><div><div><h3 class="title"><a id="build-overview"></a>2.1.1. Build Overview</h3></div></div></div><p> | ||
| 243 | The first thing you need to do is set up the OpenEmbedded build environment by sourcing | ||
| 244 | the <a class="link" href="#structure-core-script" title="5.1.10. oe-init-build-env">environment setup script</a> as follows: | ||
| 245 | </p><pre class="literallayout"> | ||
| 246 | $ source oe-init-build-env [build_dir] | ||
| 247 | </pre><p> | ||
| 248 | </p><p> | ||
| 249 | The <code class="filename">build_dir</code> is optional and specifies the directory the | ||
| 250 | OpenEmbedded build system uses for the build - | ||
| 251 | the <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>. | ||
| 252 | If you do not specify a Build Directory it defaults to <code class="filename">build</code> | ||
| 253 | in your current working directory. | ||
| 254 | A common practice is to use a different Build Directory for different targets. | ||
| 255 | For example, <code class="filename">~/build/x86</code> for a <code class="filename">qemux86</code> | ||
| 256 | target, and <code class="filename">~/build/arm</code> for a <code class="filename">qemuarm</code> target. | ||
| 257 | See <a class="link" href="#structure-core-script" title="5.1.10. oe-init-build-env">oe-init-build-env</a> | ||
| 258 | for more information on this script. | ||
| 259 | </p><p> | ||
| 260 | Once the build environment is set up, you can build a target using: | ||
| 261 | </p><pre class="literallayout"> | ||
| 262 | $ bitbake <target> | ||
| 263 | </pre><p> | ||
| 264 | </p><p> | ||
| 265 | The <code class="filename">target</code> is the name of the recipe you want to build. | ||
| 266 | Common targets are the images in <code class="filename">meta/recipes-core/images</code>, | ||
| 267 | <code class="filename">/meta/recipes-sato/images</code>, etc. all found in the | ||
| 268 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 269 | Or, the target can be the name of a recipe for a specific piece of software such as | ||
| 270 | <span class="application">busybox</span>. | ||
| 271 | For more details about the images the OpenEmbedded build system supports, see the | ||
| 272 | "<a class="link" href="#ref-images" title="Chapter 8. Images">Images</a>" chapter. | ||
| 273 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 274 | Building an image without GNU General Public License Version 3 (GPLv3) components | ||
| 275 | is only supported for minimal and base images. | ||
| 276 | See the "<a class="link" href="#ref-images" title="Chapter 8. Images">Images</a>" chapter for more information. | ||
| 277 | </div></div><div class="section" title="2.1.2. Building an Image Using GPL Components"><div class="titlepage"><div><div><h3 class="title"><a id="building-an-image-using-gpl-components"></a>2.1.2. Building an Image Using GPL Components</h3></div></div></div><p> | ||
| 278 | When building an image using GPL components, you need to maintain your original | ||
| 279 | settings and not switch back and forth applying different versions of the GNU | ||
| 280 | General Public License. | ||
| 281 | If you rebuild using different versions of GPL, dependency errors might occur | ||
| 282 | due to some components not being rebuilt. | ||
| 283 | </p></div></div><div class="section" title="2.2. Installing and Using the Result"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="usingpoky-install"></a>2.2. Installing and Using the Result</h2></div></div></div><p> | ||
| 284 | Once an image has been built, it often needs to be installed. | ||
| 285 | The images and kernels built by the OpenEmbedded build system are placed in the | ||
| 286 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a> in | ||
| 287 | <code class="filename">tmp/deploy/images</code>. | ||
| 288 | For information on how to run pre-built images such as <code class="filename">qemux86</code> | ||
| 289 | and <code class="filename">qemuarm</code>, see the | ||
| 290 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/yocto-project-qs/yocto-project-qs.html#using-pre-built" target="_top">Using Pre-Built Binaries and QEMU</a>" | ||
| 291 | section in the Yocto Project Quick Start. | ||
| 292 | For information about how to install these images, see the documentation for your | ||
| 293 | particular board/machine. | ||
| 294 | </p></div><div class="section" title="2.3. Debugging Build Failures"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="usingpoky-debugging"></a>2.3. Debugging Build Failures</h2></div></div></div><p> | ||
| 295 | The exact method for debugging build failures depends on the nature of the | ||
| 296 | problem and on the system's area from which the bug originates. | ||
| 297 | Standard debugging practices such as comparison against the last | ||
| 298 | known working version with examination of the changes and the re-application of steps | ||
| 299 | to identify the one causing the problem are | ||
| 300 | valid for the Yocto Project just as they are for any other system. | ||
| 301 | Even though it is impossible to detail every possible potential failure, | ||
| 302 | this section provides some general tips to aid in debugging. | ||
| 303 | </p><div class="section" title="2.3.1. Task Failures"><div class="titlepage"><div><div><h3 class="title"><a id="usingpoky-debugging-taskfailures"></a>2.3.1. Task Failures</h3></div></div></div><p>The log file for shell tasks is available in | ||
| 304 | <code class="filename">${WORKDIR}/temp/log.do_taskname.pid</code>. | ||
| 305 | For example, the <code class="filename">compile</code> task for the QEMU minimal image for the x86 | ||
| 306 | machine (<code class="filename">qemux86</code>) might be | ||
| 307 | <code class="filename">tmp/work/qemux86-poky-linux/core-image-minimal/1.0-r0/temp/log.do_compile.20830</code>. | ||
| 308 | To see what BitBake runs to generate that log, look at the corresponding | ||
| 309 | <code class="filename">run.do_taskname.pid</code> file located in the same directory. | ||
| 310 | </p><p> | ||
| 311 | Presently, the output from Python tasks is sent directly to the console. | ||
| 312 | </p></div><div class="section" title="2.3.2. Running Specific Tasks"><div class="titlepage"><div><div><h3 class="title"><a id="usingpoky-debugging-taskrunning"></a>2.3.2. Running Specific Tasks</h3></div></div></div><p> | ||
| 313 | Any given package consists of a set of tasks. | ||
| 314 | The standard BitBake behavior in most cases is: <code class="filename">fetch</code>, | ||
| 315 | <code class="filename">unpack</code>, | ||
| 316 | <code class="filename">patch</code>, <code class="filename">configure</code>, | ||
| 317 | <code class="filename">compile</code>, <code class="filename">install</code>, <code class="filename">package</code>, | ||
| 318 | <code class="filename">package_write</code>, and <code class="filename">build</code>. | ||
| 319 | The default task is <code class="filename">build</code> and any tasks on which it depends | ||
| 320 | build first. | ||
| 321 | Some tasks exist, such as <code class="filename">devshell</code>, that are not part of the | ||
| 322 | default build chain. | ||
| 323 | If you wish to run a task that is not part of the default build chain, you can use the | ||
| 324 | <code class="filename">-c</code> option in BitBake as follows: | ||
| 325 | </p><pre class="literallayout"> | ||
| 326 | $ bitbake matchbox-desktop -c devshell | ||
| 327 | </pre><p> | ||
| 328 | </p><p> | ||
| 329 | If you wish to rerun a task, use the <code class="filename">-f</code> force option. | ||
| 330 | For example, the following sequence forces recompilation after changing files in the | ||
| 331 | working directory. | ||
| 332 | </p><pre class="literallayout"> | ||
| 333 | $ bitbake matchbox-desktop | ||
| 334 | . | ||
| 335 | . | ||
| 336 | [make some changes to the source code in the working directory] | ||
| 337 | . | ||
| 338 | . | ||
| 339 | $ bitbake matchbox-desktop -c compile -f | ||
| 340 | $ bitbake matchbox-desktop | ||
| 341 | </pre><p> | ||
| 342 | </p><p> | ||
| 343 | This sequence first builds <code class="filename">matchbox-desktop</code> and then recompiles it. | ||
| 344 | The last command reruns all tasks (basically the packaging tasks) after the compile. | ||
| 345 | BitBake recognizes that the <code class="filename">compile</code> task was rerun and therefore | ||
| 346 | understands that the other tasks also need to be run again. | ||
| 347 | </p><p> | ||
| 348 | You can view a list of tasks in a given package by running the | ||
| 349 | <code class="filename">listtasks</code> task as follows: | ||
| 350 | </p><pre class="literallayout"> | ||
| 351 | $ bitbake matchbox-desktop -c listtasks | ||
| 352 | </pre><p> | ||
| 353 | The results are in the file <code class="filename">${WORKDIR}/temp/log.do_listtasks</code>. | ||
| 354 | </p></div><div class="section" title="2.3.3. Dependency Graphs"><div class="titlepage"><div><div><h3 class="title"><a id="usingpoky-debugging-dependencies"></a>2.3.3. Dependency Graphs</h3></div></div></div><p> | ||
| 355 | Sometimes it can be hard to see why BitBake wants to build some other packages before a given | ||
| 356 | package you have specified. | ||
| 357 | The <code class="filename">bitbake -g targetname</code> command creates the | ||
| 358 | <code class="filename">depends.dot</code>, <code class="filename">package-depends.dot</code>, | ||
| 359 | and <code class="filename">task-depends.dot</code> files in the current directory. | ||
| 360 | These files show the package and task dependencies and are useful for debugging problems. | ||
| 361 | You can use the <code class="filename">bitbake -g -u depexp targetname</code> command to | ||
| 362 | display the results in a more human-readable form. | ||
| 363 | </p></div><div class="section" title="2.3.4. General BitBake Problems"><div class="titlepage"><div><div><h3 class="title"><a id="usingpoky-debugging-bitbake"></a>2.3.4. General BitBake Problems</h3></div></div></div><p> | ||
| 364 | You can see debug output from BitBake by using the <code class="filename">-D</code> option. | ||
| 365 | The debug output gives more information about what BitBake | ||
| 366 | is doing and the reason behind it. | ||
| 367 | Each <code class="filename">-D</code> option you use increases the logging level. | ||
| 368 | The most common usage is <code class="filename">-DDD</code>. | ||
| 369 | </p><p> | ||
| 370 | The output from <code class="filename">bitbake -DDD -v targetname</code> can reveal why | ||
| 371 | BitBake chose a certain version of a package or why BitBake | ||
| 372 | picked a certain provider. | ||
| 373 | This command could also help you in a situation where you think BitBake did something | ||
| 374 | unexpected. | ||
| 375 | </p></div><div class="section" title="2.3.5. Building with No Dependencies"><div class="titlepage"><div><div><h3 class="title"><a id="usingpoky-debugging-buildfile"></a>2.3.5. Building with No Dependencies</h3></div></div></div><p> | ||
| 376 | If you really want to build a specific <code class="filename">.bb</code> file, you can use | ||
| 377 | the command form <code class="filename">bitbake -b <somepath/somefile.bb></code>. | ||
| 378 | This command form does not check for dependencies so you should use it | ||
| 379 | only when you know its dependencies already exist. | ||
| 380 | You can also specify fragments of the filename. | ||
| 381 | In this case, BitBake checks for a unique match. | ||
| 382 | </p></div><div class="section" title="2.3.6. Variables"><div class="titlepage"><div><div><h3 class="title"><a id="usingpoky-debugging-variables"></a>2.3.6. Variables</h3></div></div></div><p> | ||
| 383 | The <code class="filename">-e</code> option dumps the resulting environment for | ||
| 384 | either the configuration (no package specified) or for a | ||
| 385 | specific package when specified; or <code class="filename">-b recipename</code> | ||
| 386 | to show the environment from parsing a single recipe file only. | ||
| 387 | </p></div><div class="section" title="2.3.7. Recipe Logging Mechanisms"><div class="titlepage"><div><div><h3 class="title"><a id="recipe-logging-mechanisms"></a>2.3.7. Recipe Logging Mechanisms</h3></div></div></div><p> | ||
| 388 | Best practices exist while writing recipes that both log build progress and | ||
| 389 | act on build conditions such as warnings and errors. | ||
| 390 | Both Python and Bash language bindings exist for the logging mechanism: | ||
| 391 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>Python:</em></span> For Python functions, BitBake | ||
| 392 | supports several loglevels: <code class="filename">bb.fatal</code>, | ||
| 393 | <code class="filename">bb.error</code>, <code class="filename">bb.warn</code>, | ||
| 394 | <code class="filename">bb.note</code>, <code class="filename">bb.plain</code>, | ||
| 395 | and <code class="filename">bb.debug</code>.</p></li><li class="listitem"><p><span class="emphasis"><em>Bash:</em></span> For Bash functions, the same set | ||
| 396 | of loglevels exist and are accessed with a similar syntax: | ||
| 397 | <code class="filename">bbfatal</code>, <code class="filename">bberror</code>, | ||
| 398 | <code class="filename">bbwarn</code>, <code class="filename">bbnote</code>, | ||
| 399 | <code class="filename">bbplain</code>, and <code class="filename">bbdebug</code>.</p></li></ul></div><p> | ||
| 400 | </p><p> | ||
| 401 | For guidance on how logging is handled in both Python and Bash recipes, see the | ||
| 402 | <code class="filename">logging.bbclass</code> file in the | ||
| 403 | <code class="filename">meta/classes</code> folder of the | ||
| 404 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 405 | </p><div class="section" title="2.3.7.1. Logging With Python"><div class="titlepage"><div><div><h4 class="title"><a id="logging-with-python"></a>2.3.7.1. Logging With Python</h4></div></div></div><p> | ||
| 406 | When creating recipes using Python and inserting code that handles build logs | ||
| 407 | keep in mind the goal is to have informative logs while keeping the console as | ||
| 408 | "silent" as possible. | ||
| 409 | Also, if you want status messages in the log use the "debug" loglevel. | ||
| 410 | </p><p> | ||
| 411 | Following is an example written in Python. | ||
| 412 | The code handles logging for a function that determines the number of tasks | ||
| 413 | needed to be run: | ||
| 414 | </p><pre class="literallayout"> | ||
| 415 | python do_listtasks() { | ||
| 416 | bb.debug(2, "Starting to figure out the task list") | ||
| 417 | if noteworthy_condition: | ||
| 418 | bb.note("There are 47 tasks to run") | ||
| 419 | bb.debug(2, "Got to point xyz") | ||
| 420 | if warning_trigger: | ||
| 421 | bb.warn("Detected warning_trigger, this might be a problem later.") | ||
| 422 | if recoverable_error: | ||
| 423 | bb.error("Hit recoverable_error, you really need to fix this!") | ||
| 424 | if fatal_error: | ||
| 425 | bb.fatal("fatal_error detected, unable to print the task list") | ||
| 426 | bb.plain("The tasks present are abc") | ||
| 427 | bb.debug(2, "Finished figuring out the tasklist") | ||
| 428 | } | ||
| 429 | </pre><p> | ||
| 430 | </p></div><div class="section" title="2.3.7.2. Logging With Bash"><div class="titlepage"><div><div><h4 class="title"><a id="logging-with-bash"></a>2.3.7.2. Logging With Bash</h4></div></div></div><p> | ||
| 431 | When creating recipes using Bash and inserting code that handles build | ||
| 432 | logs you have the same goals - informative with minimal console output. | ||
| 433 | The syntax you use for recipes written in Bash is similar to that of | ||
| 434 | recipes written in Python described in the previous section. | ||
| 435 | </p><p> | ||
| 436 | Following is an example written in Bash. | ||
| 437 | The code logs the progress of the <code class="filename">do_my_function</code> function. | ||
| 438 | </p><pre class="literallayout"> | ||
| 439 | do_my_function() { | ||
| 440 | bbdebug 2 "Running do_my_function" | ||
| 441 | if [ exceptional_condition ]; then | ||
| 442 | bbnote "Hit exceptional_condition" | ||
| 443 | fi | ||
| 444 | bbdebug 2 "Got to point xyz" | ||
| 445 | if [ warning_trigger ]; then | ||
| 446 | bbwarn "Detected warning_trigger, this might cause a problem later." | ||
| 447 | fi | ||
| 448 | if [ recoverable_error ]; then | ||
| 449 | bberror "Hit recoverable_error, correcting" | ||
| 450 | fi | ||
| 451 | if [ fatal_error ]; then | ||
| 452 | bbfatal "fatal_error detected" | ||
| 453 | fi | ||
| 454 | bbdebug 2 "Completed do_my_function" | ||
| 455 | } | ||
| 456 | </pre><p> | ||
| 457 | </p></div></div><div class="section" title="2.3.8. Other Tips"><div class="titlepage"><div><div><h3 class="title"><a id="usingpoky-debugging-others"></a>2.3.8. Other Tips</h3></div></div></div><p> | ||
| 458 | Here are some other tips that you might find useful: | ||
| 459 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>When adding new packages, it is worth watching for | ||
| 460 | undesirable items making their way into compiler command lines. | ||
| 461 | For example, you do not want references to local system files like | ||
| 462 | <code class="filename">/usr/lib/</code> or <code class="filename">/usr/include/</code>. | ||
| 463 | </p></li><li class="listitem"><p>If you want to remove the psplash boot splashscreen, | ||
| 464 | add <code class="filename">psplash=false</code> to the kernel command line. | ||
| 465 | Doing so prevents psplash from loading and thus allows you to see the console. | ||
| 466 | It is also possible to switch out of the splashscreen by | ||
| 467 | switching the virtual console (e.g. Fn+Left or Fn+Right on a Zaurus). | ||
| 468 | </p></li></ul></div><p> | ||
| 469 | </p></div></div><div class="section" title="2.4. Maintaining Build Output Quality"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="maintaining-build-output-quality"></a>2.4. Maintaining Build Output Quality</h2></div></div></div><p> | ||
| 470 | A build's quality can be influenced by many things. | ||
| 471 | For example, if you upgrade a recipe to use a new version of an upstream software | ||
| 472 | package or you experiment with some new configuration options, subtle changes | ||
| 473 | can occur that you might not detect until later. | ||
| 474 | Consider the case where your recipe is using a newer version of an upstream package. | ||
| 475 | In this case, a new version of a piece of software might introduce an optional | ||
| 476 | dependency on another library, which is auto-detected. | ||
| 477 | If that library has already been built when the software is building, | ||
| 478 | then the software will link to the built library and that library will be pulled | ||
| 479 | into your image along with the new software even if you did not want the | ||
| 480 | library. | ||
| 481 | </p><p> | ||
| 482 | The <code class="filename">buildhistory</code> class exists to help you maintain | ||
| 483 | the quality of your build output. | ||
| 484 | You can use the class to highlight unexpected and possibly unwanted | ||
| 485 | changes in the build output. | ||
| 486 | When you enable build history it records information about the contents of | ||
| 487 | each package and image and then commits that information to a local Git | ||
| 488 | repository where you can examine the information. | ||
| 489 | </p><p> | ||
| 490 | The remainder of this section describes the following: | ||
| 491 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>How you can enable and disable | ||
| 492 | build history</p></li><li class="listitem"><p>How to understand what the build history contains | ||
| 493 | </p></li><li class="listitem"><p>How to limit the information used for build history | ||
| 494 | </p></li><li class="listitem"><p>How to examine the build history from both a | ||
| 495 | command-line and web interface</p></li></ul></div><p> | ||
| 496 | </p><div class="section" title="2.4.1. Enabling and Disabling Build History"><div class="titlepage"><div><div><h3 class="title"><a id="enabling-and-disabling-build-history"></a>2.4.1. Enabling and Disabling Build History</h3></div></div></div><p> | ||
| 497 | Build history is disabled by default. | ||
| 498 | To enable it, add the following statements to the end of your | ||
| 499 | <code class="filename">conf/local.conf</code> file found in the | ||
| 500 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>: | ||
| 501 | </p><pre class="literallayout"> | ||
| 502 | INHERIT += "buildhistory" | ||
| 503 | BUILDHISTORY_COMMIT = "1" | ||
| 504 | </pre><p> | ||
| 505 | Enabling build history as previously described | ||
| 506 | causes the build process to collect build | ||
| 507 | output information and commit it to a local | ||
| 508 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#git" target="_top">Git</a> repository. | ||
| 509 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 510 | Enabling build history increases your build times slightly, | ||
| 511 | particularly for images, and increases the amount of disk | ||
| 512 | space used during the build. | ||
| 513 | </div><p> | ||
| 514 | </p><p> | ||
| 515 | You can disable build history by removing the previous statements | ||
| 516 | from your <code class="filename">conf/local.conf</code> file. | ||
| 517 | However, you should realize that enabling and disabling | ||
| 518 | build history in this manner can change the | ||
| 519 | <code class="filename">do_package</code> task checksums, which if you | ||
| 520 | are using the OEBasicHash signature generator (the default | ||
| 521 | for many current distro configurations including | ||
| 522 | <code class="filename">DISTRO = "poky"</code> and | ||
| 523 | <code class="filename">DISTRO = ""</code>) will result in the packaging | ||
| 524 | tasks being re-run during the subsequent build. | ||
| 525 | </p><p> | ||
| 526 | To disable the build history functionality without causing the | ||
| 527 | packaging tasks to be re-run, add just this statement to your | ||
| 528 | <code class="filename">conf/local.conf</code> file: | ||
| 529 | </p><pre class="literallayout"> | ||
| 530 | BUILDHISTORY_FEATURES = "" | ||
| 531 | </pre><p> | ||
| 532 | </p></div><div class="section" title="2.4.2. Understanding What the Build History Contains"><div class="titlepage"><div><div><h3 class="title"><a id="understanding-what-the-build-history-contains"></a>2.4.2. Understanding What the Build History Contains</h3></div></div></div><p> | ||
| 533 | Build history information is kept in | ||
| 534 | <a class="link" href="#var-TMPDIR" title="TMPDIR"><code class="filename">$TMPDIR</code></a><code class="filename">/buildhistory</code> | ||
| 535 | in the Build Directory. | ||
| 536 | The following is an example abbreviated listing: | ||
| 537 | </p><table border="0" summary="manufactured viewport for HTML img" cellspacing="0" cellpadding="0" width="540"><tr style="height: 360px"><td align="center"><img src="figures/buildhistory.png" align="middle" width="540" /></td></tr></table><p> | ||
| 538 | </p><div class="section" title="2.4.2.1. Build History Package Information"><div class="titlepage"><div><div><h4 class="title"><a id="build-history-package-information"></a>2.4.2.1. Build History Package Information</h4></div></div></div><p> | ||
| 539 | The history for each package contains a text file that has | ||
| 540 | name-value pairs with information about the package. | ||
| 541 | For example, <code class="filename">buildhistory/packages/core2-poky-linux/busybox/busybox/latest</code> | ||
| 542 | contains the following: | ||
| 543 | </p><pre class="literallayout"> | ||
| 544 | PV = 1.19.3 | ||
| 545 | PR = r3 | ||
| 546 | RDEPENDS = update-rc.d eglibc (>= 2.13) | ||
| 547 | RRECOMMENDS = busybox-syslog busybox-udhcpc | ||
| 548 | PKGSIZE = 564701 | ||
| 549 | FILES = /usr/bin/* /usr/sbin/* /usr/libexec/* /usr/lib/lib*.so.* \ | ||
| 550 | /etc /com /var /bin/* /sbin/* /lib/*.so.* /usr/share/busybox \ | ||
| 551 | /usr/lib/busybox/* /usr/share/pixmaps /usr/share/applications \ | ||
| 552 | /usr/share/idl /usr/share/omf /usr/share/sounds /usr/lib/bonobo/servers | ||
| 553 | FILELIST = /etc/busybox.links /etc/init.d/hwclock.sh /bin/busybox /bin/sh | ||
| 554 | </pre><p> | ||
| 555 | Most of these name-value pairs corresponds to variables used | ||
| 556 | to produce the package. | ||
| 557 | The exceptions are <code class="filename">FILELIST</code>, which is the | ||
| 558 | actual list of files in the package, and | ||
| 559 | <code class="filename">PKGSIZE</code>, which is the total size of files | ||
| 560 | in the package in bytes. | ||
| 561 | </p><p> | ||
| 562 | There is also a file corresponding to the recipe from which the | ||
| 563 | package came (e.g. | ||
| 564 | <code class="filename">buildhistory/packages/core2-poky-linux/busybox/latest</code>): | ||
| 565 | </p><pre class="literallayout"> | ||
| 566 | PV = 1.19.3 | ||
| 567 | PR = r3 | ||
| 568 | DEPENDS = virtual/i586-poky-linux-gcc virtual/i586-poky-linux-compilerlibs \ | ||
| 569 | virtual/libc update-rc.d-native | ||
| 570 | PACKAGES = busybox-httpd busybox-udhcpd busybox-udhcpc busybox-syslog \ | ||
| 571 | busybox-mdev busybox-dbg busybox busybox-doc busybox-dev \ | ||
| 572 | busybox-staticdev busybox-locale | ||
| 573 | </pre><p> | ||
| 574 | </p></div><div class="section" title="2.4.2.2. Build History Image Information"><div class="titlepage"><div><div><h4 class="title"><a id="build-history-image-information"></a>2.4.2.2. Build History Image Information</h4></div></div></div><p> | ||
| 575 | The files produced for each image are as follows: | ||
| 576 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>build-id:</em></span> | ||
| 577 | Human-readable information about the build configuration | ||
| 578 | and metadata source revisions.</p></li><li class="listitem"><p><span class="emphasis"><em>*.dot:</em></span> | ||
| 579 | Dependency graphs for the image that are | ||
| 580 | compatible with <code class="filename">graphviz</code>. | ||
| 581 | </p></li><li class="listitem"><p><span class="emphasis"><em>files-in-image.txt:</em></span> | ||
| 582 | A list of files in the image with permissions, | ||
| 583 | owner, group, size, and symlink information. | ||
| 584 | </p></li><li class="listitem"><p><span class="emphasis"><em>image-info.txt:</em></span> | ||
| 585 | A text file containing name-value pairs with information | ||
| 586 | about the image. | ||
| 587 | See the following listing example for more information. | ||
| 588 | </p></li><li class="listitem"><p><span class="emphasis"><em>installed-package-names.txt:</em></span> | ||
| 589 | A list of installed packages by name only.</p></li><li class="listitem"><p><span class="emphasis"><em>installed-package-sizes.txt:</em></span> | ||
| 590 | A list of installed packages ordered by size. | ||
| 591 | </p></li><li class="listitem"><p><span class="emphasis"><em>installed-packages.txt:</em></span> | ||
| 592 | A list of installed packages with fuill package | ||
| 593 | filenames.</p></li></ul></div><p> | ||
| 594 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 595 | Installed package information is able to be gathered and | ||
| 596 | produced even if package management is disabled for the final | ||
| 597 | image. | ||
| 598 | </div><p> | ||
| 599 | </p><p> | ||
| 600 | Here is an example of <code class="filename">image-info.txt</code>: | ||
| 601 | </p><pre class="literallayout"> | ||
| 602 | DISTRO = poky | ||
| 603 | DISTRO_VERSION = 1.1+snapshot-20120207 | ||
| 604 | USER_CLASSES = image-mklibs image-prelink | ||
| 605 | IMAGE_CLASSES = image_types | ||
| 606 | IMAGE_FEATURES = debug-tweaks x11-base apps-x11-core \ | ||
| 607 | package-management ssh-server-dropbear package-management | ||
| 608 | IMAGE_LINGUAS = en-us en-gb | ||
| 609 | IMAGE_INSTALL = task-core-boot task-base-extended | ||
| 610 | BAD_RECOMMENDATIONS = | ||
| 611 | ROOTFS_POSTPROCESS_COMMAND = buildhistory_get_image_installed ; rootfs_update_timestamp ; | ||
| 612 | IMAGE_POSTPROCESS_COMMAND = buildhistory_get_imageinfo ; | ||
| 613 | IMAGESIZE = 171816 | ||
| 614 | </pre><p> | ||
| 615 | Other than <code class="filename">IMAGESIZE</code>, which is the | ||
| 616 | total size of the files in the image in Kbytes, the | ||
| 617 | name-value pairs are variables that may have influenced the | ||
| 618 | content of the image. | ||
| 619 | This information is often useful when you are trying to determine | ||
| 620 | why a change in the package or file listings has occurred. | ||
| 621 | </p></div><div class="section" title="2.4.2.3. Using Build History to Gather Image Information Only"><div class="titlepage"><div><div><h4 class="title"><a id="using-build-history-to-gather-image-information-only"></a>2.4.2.3. Using Build History to Gather Image Information Only</h4></div></div></div><p> | ||
| 622 | As you can see, build history produces image information, | ||
| 623 | including dependency graphs, so you can see why something | ||
| 624 | was pulled into the image. | ||
| 625 | If you are just interested in this information and not | ||
| 626 | interested in collecting history or any package information, | ||
| 627 | you can enable writing only image information without | ||
| 628 | any history by adding the following | ||
| 629 | to your <code class="filename">conf/local.conf</code> file found in the | ||
| 630 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>: | ||
| 631 | </p><pre class="literallayout"> | ||
| 632 | INHERIT += "buildhistory" | ||
| 633 | BUILDHISTORY_COMMIT = "0" | ||
| 634 | BUILDHISTORY_FEATURES = "image" | ||
| 635 | </pre><p> | ||
| 636 | </p></div><div class="section" title="2.4.2.4. Examining Build History Information"><div class="titlepage"><div><div><h4 class="title"><a id="examining-build-history-information"></a>2.4.2.4. Examining Build History Information</h4></div></div></div><p> | ||
| 637 | You can examine build history output from the command line or | ||
| 638 | from a web interface. | ||
| 639 | </p><p> | ||
| 640 | To see any changes that have occurred (assuming you have | ||
| 641 | <code class="filename">BUILDHISTORY_COMMIT = "1"</code>), you can simply | ||
| 642 | use any Git command that allows you to view the history of | ||
| 643 | a repository. | ||
| 644 | Here is one method: | ||
| 645 | </p><pre class="literallayout"> | ||
| 646 | $ git log -p | ||
| 647 | </pre><p> | ||
| 648 | You need to realize, however, that this method does show | ||
| 649 | changes that are not significant (e.g. a package's size | ||
| 650 | changing by a few bytes). | ||
| 651 | </p><p> | ||
| 652 | A command-line tool called <code class="filename">buildhistory-diff</code> | ||
| 653 | does exist though that queries the Git repository and prints just | ||
| 654 | the differences that might be significant in human-readable form. | ||
| 655 | Here is an example: | ||
| 656 | </p><pre class="literallayout"> | ||
| 657 | $ ~/poky/poky/scripts/buildhistory-diff . HEAD^ | ||
| 658 | Changes to images/qemux86_64/eglibc/core-image-minimal (files-in-image.txt): | ||
| 659 | /etc/anotherpkg.conf was added | ||
| 660 | /sbin/anotherpkg was added | ||
| 661 | * (installed-package-names.txt): | ||
| 662 | * anotherpkg was added | ||
| 663 | Changes to images/qemux86_64/eglibc/core-image-minimal (installed-package-names.txt): | ||
| 664 | anotherpkg was added | ||
| 665 | packages/qemux86_64-poky-linux/v86d: PACKAGES: added "v86d-extras" | ||
| 666 | * PR changed from "r0" to "r1" | ||
| 667 | * PV changed from "0.1.10" to "0.1.12" | ||
| 668 | packages/qemux86_64-poky-linux/v86d/v86d: PKGSIZE changed from 110579 to 144381 (+30%) | ||
| 669 | * PR changed from "r0" to "r1" | ||
| 670 | * PV changed from "0.1.10" to "0.1.12" | ||
| 671 | </pre><p> | ||
| 672 | </p><p> | ||
| 673 | To see changes to the build history using a web interface, follow | ||
| 674 | the instruction in the <code class="filename">README</code> file here. | ||
| 675 | <a class="ulink" href="http://git.yoctoproject.org/cgit/cgit.cgi/buildhistory-web/" target="_top">http://git.yoctoproject.org/cgit/cgit.cgi/buildhistory-web/</a>. | ||
| 676 | </p><p> | ||
| 677 | Here is a sample screenshot of the interface: | ||
| 678 | </p><table border="0" summary="manufactured viewport for HTML img" cellspacing="0" cellpadding="0" width="130%"><tr><td align="center"><img src="figures/buildhistory-web.png" align="middle" height="468" /></td></tr></table><p> | ||
| 679 | </p></div></div></div></div> | ||
| 680 | |||
| 681 | <div class="chapter" title="Chapter 3. Technical Details"><div class="titlepage"><div><div><h2 class="title"><a id="technical-details"></a>Chapter 3. Technical Details</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="section"><a href="#usingpoky-components">3.1. Yocto Project Components</a></span></dt><dd><dl><dt><span class="section"><a href="#usingpoky-components-bitbake">3.1.1. BitBake</a></span></dt><dt><span class="section"><a href="#usingpoky-components-metadata">3.1.2. Metadata (Recipes)</a></span></dt><dt><span class="section"><a href="#usingpoky-components-classes">3.1.3. Classes</a></span></dt><dt><span class="section"><a href="#usingpoky-components-configuration">3.1.4. Configuration</a></span></dt></dl></dd><dt><span class="section"><a href="#shared-state-cache">3.2. Shared State Cache</a></span></dt><dd><dl><dt><span class="section"><a href="#overall-architecture">3.2.1. Overall Architecture</a></span></dt><dt><span class="section"><a href="#checksums">3.2.2. Checksums (Signatures)</a></span></dt><dt><span class="section"><a href="#shared-state">3.2.3. Shared State</a></span></dt><dt><span class="section"><a href="#tips-and-tricks">3.2.4. Tips and Tricks</a></span></dt></dl></dd><dt><span class="section"><a href="#x32">3.3. x32</a></span></dt><dd><dl><dt><span class="section"><a href="#support">3.3.1. Support</a></span></dt><dt><span class="section"><a href="#future-development-and-limitations">3.3.2. Future Development and Limitations</a></span></dt><dt><span class="section"><a href="#using-x32-right-now">3.3.3. Using x32 Right Now</a></span></dt></dl></dd><dt><span class="section"><a href="#licenses">3.4. Licenses</a></span></dt><dd><dl><dt><span class="section"><a href="#usingpoky-configuring-LIC_FILES_CHKSUM">3.4.1. Tracking License Changes</a></span></dt><dt><span class="section"><a href="#enabling-commercially-licensed-recipes">3.4.2. Enabling Commercially Licensed Recipes</a></span></dt></dl></dd></dl></div><p> | ||
| 682 | This chapter provides technical details for various parts of the Yocto Project. | ||
| 683 | Currently, topics include Yocto Project components and shared state (sstate) cache. | ||
| 684 | </p><div class="section" title="3.1. Yocto Project Components"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="usingpoky-components"></a>3.1. Yocto Project Components</h2></div></div></div><p> | ||
| 685 | The BitBake task executor together with various types of configuration files form the | ||
| 686 | OpenEmbedded Core. | ||
| 687 | This section overviews the BitBake task executor and the | ||
| 688 | configuration files by describing what they are used for and how they interact. | ||
| 689 | </p><p> | ||
| 690 | BitBake handles the parsing and execution of the data files. | ||
| 691 | The data itself is of various types: | ||
| 692 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>Recipes:</em></span> Provides details about particular | ||
| 693 | pieces of software</p></li><li class="listitem"><p><span class="emphasis"><em>Class Data:</em></span> An abstraction of common build | ||
| 694 | information (e.g. how to build a Linux kernel).</p></li><li class="listitem"><p><span class="emphasis"><em>Configuration Data:</em></span> Defines machine-specific settings, | ||
| 695 | policy decisions, etc. | ||
| 696 | Configuration data acts as the glue to bind everything together.</p></li></ul></div><p> | ||
| 697 | For more information on data, see the | ||
| 698 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#yocto-project-terms" target="_top">Yocto Project Terms</a>" | ||
| 699 | section in the Yocto Project Development Manual. | ||
| 700 | </p><p> | ||
| 701 | BitBake knows how to combine multiple data sources together and refers to each data source | ||
| 702 | as a layer. | ||
| 703 | For information on layers, see the | ||
| 704 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#understanding-and-creating-layers" target="_top">Understanding and | ||
| 705 | Creating Layers</a>" section of the Yocto Project Development Manual. | ||
| 706 | </p><p> | ||
| 707 | Following are some brief details on these core components. | ||
| 708 | For more detailed information on these components see the | ||
| 709 | "<a class="link" href="#ref-structure" title="Chapter 5. Source Directory Structure">Directory Structure</a>" chapter. | ||
| 710 | </p><div class="section" title="3.1.1. BitBake"><div class="titlepage"><div><div><h3 class="title"><a id="usingpoky-components-bitbake"></a>3.1.1. BitBake</h3></div></div></div><p> | ||
| 711 | BitBake is the tool at the heart of the OpenEmbedded build system and is responsible | ||
| 712 | for parsing the metadata, generating a list of tasks from it, | ||
| 713 | and then executing those tasks. | ||
| 714 | To see a list of the options BitBake supports, use the following help command: | ||
| 715 | </p><pre class="literallayout"> | ||
| 716 | $ bitbake --help | ||
| 717 | </pre><p> | ||
| 718 | </p><p> | ||
| 719 | The most common usage for BitBake is <code class="filename">bitbake <packagename></code>, where | ||
| 720 | <code class="filename">packagename</code> is the name of the package you want to build | ||
| 721 | (referred to as the "target" in this manual). | ||
| 722 | The target often equates to the first part of a <code class="filename">.bb</code> filename. | ||
| 723 | So, to run the <code class="filename">matchbox-desktop_1.2.3.bb</code> file, you | ||
| 724 | might type the following: | ||
| 725 | </p><pre class="literallayout"> | ||
| 726 | $ bitbake matchbox-desktop | ||
| 727 | </pre><p> | ||
| 728 | Several different versions of <code class="filename">matchbox-desktop</code> might exist. | ||
| 729 | BitBake chooses the one selected by the distribution configuration. | ||
| 730 | You can get more details about how BitBake chooses between different | ||
| 731 | target versions and providers in the | ||
| 732 | "<a class="link" href="#ref-bitbake-providers" title="6.2. Preferences and Providers">Preferences and Providers</a>" section. | ||
| 733 | </p><p> | ||
| 734 | BitBake also tries to execute any dependent tasks first. | ||
| 735 | So for example, before building <code class="filename">matchbox-desktop</code>, BitBake | ||
| 736 | would build a cross compiler and <code class="filename">eglibc</code> if they had not already | ||
| 737 | been built. | ||
| 738 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3>This release of the Yocto Project does not support the <code class="filename">glibc</code> | ||
| 739 | GNU version of the Unix standard C library. By default, the OpenEmbedded build system | ||
| 740 | builds with <code class="filename">eglibc</code>.</div><p> | ||
| 741 | </p><p> | ||
| 742 | A useful BitBake option to consider is the <code class="filename">-k</code> or | ||
| 743 | <code class="filename">--continue</code> option. | ||
| 744 | This option instructs BitBake to try and continue processing the job as much | ||
| 745 | as possible even after encountering an error. | ||
| 746 | When an error occurs, the target that | ||
| 747 | failed and those that depend on it cannot be remade. | ||
| 748 | However, when you use this option other dependencies can still be processed. | ||
| 749 | </p></div><div class="section" title="3.1.2. Metadata (Recipes)"><div class="titlepage"><div><div><h3 class="title"><a id="usingpoky-components-metadata"></a>3.1.2. Metadata (Recipes)</h3></div></div></div><p> | ||
| 750 | The <code class="filename">.bb</code> files are usually referred to as "recipes." | ||
| 751 | In general, a recipe contains information about a single piece of software. | ||
| 752 | The information includes the location from which to download the source patches | ||
| 753 | (if any are needed), which special configuration options to apply, | ||
| 754 | how to compile the source files, and how to package the compiled output. | ||
| 755 | </p><p> | ||
| 756 | The term "package" can also be used to describe recipes. | ||
| 757 | However, since the same word is used for the packaged output from the OpenEmbedded | ||
| 758 | build system (i.e. <code class="filename">.ipk</code> or <code class="filename">.deb</code> files), | ||
| 759 | this document avoids using the term "package" when referring to recipes. | ||
| 760 | </p></div><div class="section" title="3.1.3. Classes"><div class="titlepage"><div><div><h3 class="title"><a id="usingpoky-components-classes"></a>3.1.3. Classes</h3></div></div></div><p> | ||
| 761 | Class files (<code class="filename">.bbclass</code>) contain information that is useful to share | ||
| 762 | between metadata files. | ||
| 763 | An example is the Autotools class, which contains | ||
| 764 | common settings for any application that Autotools uses. | ||
| 765 | The "<a class="link" href="#ref-classes" title="Chapter 7. Classes">Classes</a>" chapter provides details | ||
| 766 | about common classes and how to use them. | ||
| 767 | </p></div><div class="section" title="3.1.4. Configuration"><div class="titlepage"><div><div><h3 class="title"><a id="usingpoky-components-configuration"></a>3.1.4. Configuration</h3></div></div></div><p> | ||
| 768 | The configuration files (<code class="filename">.conf</code>) define various configuration variables | ||
| 769 | that govern the OpenEmbedded build process. | ||
| 770 | These files fall into several areas that define machine configuration options, | ||
| 771 | distribution configuration options, compiler tuning options, general common configuration | ||
| 772 | options and user configuration options (<code class="filename">local.conf</code>, which is found | ||
| 773 | in the <a class="ulink" href="build-directory" target="_top">Build Directory</a>). | ||
| 774 | </p></div></div><div class="section" title="3.2. Shared State Cache"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="shared-state-cache"></a>3.2. Shared State Cache</h2></div></div></div><p> | ||
| 775 | By design, the OpenEmbedded build system builds everything from scratch unless | ||
| 776 | BitBake can determine that parts don't need to be rebuilt. | ||
| 777 | Fundamentally, building from scratch is attractive as it means all parts are | ||
| 778 | built fresh and there is no possibility of stale data causing problems. | ||
| 779 | When developers hit problems, they typically default back to building from scratch | ||
| 780 | so they know the state of things from the start. | ||
| 781 | </p><p> | ||
| 782 | Building an image from scratch is both an advantage and a disadvantage to the process. | ||
| 783 | As mentioned in the previous paragraph, building from scratch ensures that | ||
| 784 | everything is current and starts from a known state. | ||
| 785 | However, building from scratch also takes much longer as it generally means | ||
| 786 | rebuilding things that don't necessarily need rebuilt. | ||
| 787 | </p><p> | ||
| 788 | The Yocto Project implements shared state code that supports incremental builds. | ||
| 789 | The implementation of the shared state code answers the following questions that | ||
| 790 | were fundamental roadblocks within the OpenEmbedded incremental build support system: | ||
| 791 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem">What pieces of the system have changed and what pieces have not changed?</li><li class="listitem">How are changed pieces of software removed and replaced?</li><li class="listitem">How are pre-built components that don't need to be rebuilt from scratch | ||
| 792 | used when they are available?</li></ul></div><p> | ||
| 793 | </p><p> | ||
| 794 | For the first question, the build system detects changes in the "inputs" to a given task by | ||
| 795 | creating a checksum (or signature) of the task's inputs. | ||
| 796 | If the checksum changes, the system assumes the inputs have changed and the task needs to be | ||
| 797 | rerun. | ||
| 798 | For the second question, the shared state (sstate) code tracks which tasks add which output | ||
| 799 | to the build process. | ||
| 800 | This means the output from a given task can be removed, upgraded or otherwise manipulated. | ||
| 801 | The third question is partly addressed by the solution for the second question | ||
| 802 | assuming the build system can fetch the sstate objects from remote locations and | ||
| 803 | install them if they are deemed to be valid. | ||
| 804 | </p><p> | ||
| 805 | The rest of this section goes into detail about the overall incremental build | ||
| 806 | architecture, the checksums (signatures), shared state, and some tips and tricks. | ||
| 807 | </p><div class="section" title="3.2.1. Overall Architecture"><div class="titlepage"><div><div><h3 class="title"><a id="overall-architecture"></a>3.2.1. Overall Architecture</h3></div></div></div><p> | ||
| 808 | When determining what parts of the system need to be built, BitBake | ||
| 809 | uses a per-task basis and does not use a per-recipe basis. | ||
| 810 | You might wonder why using a per-task basis is preferred over a per-recipe basis. | ||
| 811 | To help explain, consider having the IPK packaging backend enabled and then switching to DEB. | ||
| 812 | In this case, <code class="filename">do_install</code> and <code class="filename">do_package</code> | ||
| 813 | output are still valid. | ||
| 814 | However, with a per-recipe approach, the build would not include the | ||
| 815 | <code class="filename">.deb</code> files. | ||
| 816 | Consequently, you would have to invalidate the whole build and rerun it. | ||
| 817 | Rerunning everything is not the best situation. | ||
| 818 | Also in this case, the core must be "taught" much about specific tasks. | ||
| 819 | This methodology does not scale well and does not allow users to easily add new tasks | ||
| 820 | in layers or as external recipes without touching the packaged-staging core. | ||
| 821 | </p></div><div class="section" title="3.2.2. Checksums (Signatures)"><div class="titlepage"><div><div><h3 class="title"><a id="checksums"></a>3.2.2. Checksums (Signatures)</h3></div></div></div><p> | ||
| 822 | The shared state code uses a checksum, which is a unique signature of a task's | ||
| 823 | inputs, to determine if a task needs to be run again. | ||
| 824 | Because it is a change in a task's inputs that triggers a rerun, the process | ||
| 825 | needs to detect all the inputs to a given task. | ||
| 826 | For shell tasks, this turns out to be fairly easy because | ||
| 827 | the build process generates a "run" shell script for each task and | ||
| 828 | it is possible to create a checksum that gives you a good idea of when | ||
| 829 | the task's data changes. | ||
| 830 | </p><p> | ||
| 831 | To complicate the problem, there are things that should not be included in | ||
| 832 | the checksum. | ||
| 833 | First, there is the actual specific build path of a given task - | ||
| 834 | the <a class="link" href="#var-WORKDIR" title="WORKDIR"><code class="filename">WORKDIR</code></a>. | ||
| 835 | It does not matter if the working directory changes because it should not | ||
| 836 | affect the output for target packages. | ||
| 837 | Also, the build process has the objective of making native/cross packages relocatable. | ||
| 838 | The checksum therefore needs to exclude <code class="filename">WORKDIR</code>. | ||
| 839 | The simplistic approach for excluding the working directory is to set | ||
| 840 | <code class="filename">WORKDIR</code> to some fixed value and create the checksum | ||
| 841 | for the "run" script. | ||
| 842 | </p><p> | ||
| 843 | Another problem results from the "run" scripts containing functions that | ||
| 844 | might or might not get called. | ||
| 845 | The incremental build solution contains code that figures out dependencies | ||
| 846 | between shell functions. | ||
| 847 | This code is used to prune the "run" scripts down to the minimum set, | ||
| 848 | thereby alleviating this problem and making the "run" scripts much more | ||
| 849 | readable as a bonus. | ||
| 850 | </p><p> | ||
| 851 | So far we have solutions for shell scripts. | ||
| 852 | What about python tasks? | ||
| 853 | The same approach applies even though these tasks are more difficult. | ||
| 854 | The process needs to figure out what variables a python function accesses | ||
| 855 | and what functions it calls. | ||
| 856 | Again, the incremental build solution contains code that first figures out | ||
| 857 | the variable and function dependencies, and then creates a checksum for the data | ||
| 858 | used as the input to the task. | ||
| 859 | </p><p> | ||
| 860 | Like the <code class="filename">WORKDIR</code> case, situations exist where dependencies | ||
| 861 | should be ignored. | ||
| 862 | For these cases, you can instruct the build process to ignore a dependency | ||
| 863 | by using a line like the following: | ||
| 864 | </p><pre class="literallayout"> | ||
| 865 | PACKAGE_ARCHS[vardepsexclude] = "MACHINE" | ||
| 866 | </pre><p> | ||
| 867 | This example ensures that the <code class="filename">PACKAGE_ARCHS</code> variable does not | ||
| 868 | depend on the value of <code class="filename">MACHINE</code>, even if it does reference it. | ||
| 869 | </p><p> | ||
| 870 | Equally, there are cases where we need to add dependencies BitBake is not able to find. | ||
| 871 | You can accomplish this by using a line like the following: | ||
| 872 | </p><pre class="literallayout"> | ||
| 873 | PACKAGE_ARCHS[vardeps] = "MACHINE" | ||
| 874 | </pre><p> | ||
| 875 | This example explicitly adds the <code class="filename">MACHINE</code> variable as a | ||
| 876 | dependency for <code class="filename">PACKAGE_ARCHS</code>. | ||
| 877 | </p><p> | ||
| 878 | Consider a case with inline python, for example, where BitBake is not | ||
| 879 | able to figure out dependencies. | ||
| 880 | When running in debug mode (i.e. using <code class="filename">-DDD</code>), BitBake | ||
| 881 | produces output when it discovers something for which it cannot figure out | ||
| 882 | dependencies. | ||
| 883 | The Yocto Project team has currently not managed to cover those dependencies | ||
| 884 | in detail and is aware of the need to fix this situation. | ||
| 885 | </p><p> | ||
| 886 | Thus far, this section has limited discussion to the direct inputs into a task. | ||
| 887 | Information based on direct inputs is referred to as the "basehash" in the | ||
| 888 | code. | ||
| 889 | However, there is still the question of a task's indirect inputs - the | ||
| 890 | things that were already built and present in the Build Directory. | ||
| 891 | The checksum (or signature) for a particular task needs to add the hashes | ||
| 892 | of all the tasks on which the particular task depends. | ||
| 893 | Choosing which dependencies to add is a policy decision. | ||
| 894 | However, the effect is to generate a master checksum that combines the basehash | ||
| 895 | and the hashes of the task's dependencies. | ||
| 896 | </p><p> | ||
| 897 | At the code level, there are a variety of ways both the basehash and the | ||
| 898 | dependent task hashes can be influenced. | ||
| 899 | Within the BitBake configuration file, we can give BitBake some extra information | ||
| 900 | to help it construct the basehash. | ||
| 901 | The following statements effectively result in a list of global variable | ||
| 902 | dependency excludes - variables never included in any checksum: | ||
| 903 | </p><pre class="literallayout"> | ||
| 904 | BB_HASHBASE_WHITELIST ?= "TMPDIR FILE PATH PWD BB_TASKHASH BBPATH" | ||
| 905 | BB_HASHBASE_WHITELIST += "DL_DIR SSTATE_DIR THISDIR FILESEXTRAPATHS" | ||
| 906 | BB_HASHBASE_WHITELIST += "FILE_DIRNAME HOME LOGNAME SHELL TERM USER" | ||
| 907 | BB_HASHBASE_WHITELIST += "FILESPATH USERNAME STAGING_DIR_HOST STAGING_DIR_TARGET" | ||
| 908 | </pre><p> | ||
| 909 | The previous example actually excludes | ||
| 910 | <a class="link" href="#var-WORKDIR" title="WORKDIR"><code class="filename">WORKDIR</code></a> | ||
| 911 | since it is actually constructed as a path within | ||
| 912 | <a class="link" href="#var-TMPDIR" title="TMPDIR"><code class="filename">TMPDIR</code></a>, which is on | ||
| 913 | the whitelist. | ||
| 914 | </p><p> | ||
| 915 | The rules for deciding which hashes of dependent tasks to include through | ||
| 916 | dependency chains are more complex and are generally accomplished with a | ||
| 917 | python function. | ||
| 918 | The code in <code class="filename">meta/lib/oe/sstatesig.py</code> shows two examples | ||
| 919 | of this and also illustrates how you can insert your own policy into the system | ||
| 920 | if so desired. | ||
| 921 | This file defines the two basic signature generators <code class="filename">OE-Core</code> | ||
| 922 | uses: "OEBasic" and "OEBasicHash". | ||
| 923 | By default, there is a dummy "noop" signature handler enabled in BitBake. | ||
| 924 | This means that behavior is unchanged from previous versions. | ||
| 925 | <code class="filename">OE-Core</code> uses the "OEBasic" signature handler by default | ||
| 926 | through this setting in the <code class="filename">bitbake.conf</code> file: | ||
| 927 | </p><pre class="literallayout"> | ||
| 928 | BB_SIGNATURE_HANDLER ?= "OEBasic" | ||
| 929 | </pre><p> | ||
| 930 | The "OEBasicHash" <code class="filename">BB_SIGNATURE_HANDLER</code> is the same as the | ||
| 931 | "OEBasic" version but adds the task hash to the stamp files. | ||
| 932 | This results in any metadata change that changes the task hash, automatically | ||
| 933 | causing the task to be run again. | ||
| 934 | This removes the need to bump <a class="link" href="#var-PR" title="PR"><code class="filename">PR</code></a> | ||
| 935 | values and changes to metadata automatically ripple across the build. | ||
| 936 | Currently, this behavior is not the default behavior for <code class="filename">OE-Core</code> | ||
| 937 | but is the default in <code class="filename">poky</code>. | ||
| 938 | </p><p> | ||
| 939 | It is also worth noting that the end result of these signature generators is to | ||
| 940 | make some dependency and hash information available to the build. | ||
| 941 | This information includes: | ||
| 942 | </p><pre class="literallayout"> | ||
| 943 | BB_BASEHASH_task-<taskname> - the base hashes for each task in the recipe | ||
| 944 | BB_BASEHASH_<filename:taskname> - the base hashes for each dependent task | ||
| 945 | BBHASHDEPS_<filename:taskname> - The task dependencies for each task | ||
| 946 | BB_TASKHASH - the hash of the currently running task | ||
| 947 | </pre><p> | ||
| 948 | </p></div><div class="section" title="3.2.3. Shared State"><div class="titlepage"><div><div><h3 class="title"><a id="shared-state"></a>3.2.3. Shared State</h3></div></div></div><p> | ||
| 949 | Checksums and dependencies, as discussed in the previous section, solve half the | ||
| 950 | problem. | ||
| 951 | The other part of the problem is being able to use checksum information during the build | ||
| 952 | and being able to reuse or rebuild specific components. | ||
| 953 | </p><p> | ||
| 954 | The shared state class (<code class="filename">sstate.bbclass</code>) | ||
| 955 | is a relatively generic implementation of how to "capture" a snapshot of a given task. | ||
| 956 | The idea is that the build process does not care about the source of a task's output. | ||
| 957 | Output could be freshly built or it could be downloaded and unpacked from | ||
| 958 | somewhere - the build process doesn't need to worry about its source. | ||
| 959 | </p><p> | ||
| 960 | There are two types of output, one is just about creating a directory | ||
| 961 | in <a class="link" href="#var-WORKDIR" title="WORKDIR"><code class="filename">WORKDIR</code></a>. | ||
| 962 | A good example is the output of either <code class="filename">do_install</code> or | ||
| 963 | <code class="filename">do_package</code>. | ||
| 964 | The other type of output occurs when a set of data is merged into a shared directory | ||
| 965 | tree such as the sysroot. | ||
| 966 | </p><p> | ||
| 967 | The Yocto Project team has tried to keep the details of the implementation hidden in | ||
| 968 | <code class="filename">sstate.bbclass</code>. | ||
| 969 | From a user's perspective, adding shared state wrapping to a task | ||
| 970 | is as simple as this <code class="filename">do_deploy</code> example taken from | ||
| 971 | <code class="filename">do_deploy.bbclass</code>: | ||
| 972 | </p><pre class="literallayout"> | ||
| 973 | DEPLOYDIR = "${WORKDIR}/deploy-${PN}" | ||
| 974 | SSTATETASKS += "do_deploy" | ||
| 975 | do_deploy[sstate-name] = "deploy" | ||
| 976 | do_deploy[sstate-inputdirs] = "${DEPLOYDIR}" | ||
| 977 | do_deploy[sstate-outputdirs] = "${DEPLOY_DIR_IMAGE}" | ||
| 978 | |||
| 979 | python do_deploy_setscene () { | ||
| 980 | sstate_setscene(d) | ||
| 981 | } | ||
| 982 | addtask do_deploy_setscene | ||
| 983 | </pre><p> | ||
| 984 | In the example, we add some extra flags to the task, a name field ("deploy"), an | ||
| 985 | input directory where the task sends data, and the output | ||
| 986 | directory where the data from the task should eventually be copied. | ||
| 987 | We also add a <code class="filename">_setscene</code> variant of the task and add the task | ||
| 988 | name to the <code class="filename">SSTATETASKS</code> list. | ||
| 989 | </p><p> | ||
| 990 | If you have a directory whose contents you need to preserve, you can do this with | ||
| 991 | a line like the following: | ||
| 992 | </p><pre class="literallayout"> | ||
| 993 | do_package[sstate-plaindirs] = "${PKGD} ${PKGDEST}" | ||
| 994 | </pre><p> | ||
| 995 | This method, as well as the following example, also works for multiple directories. | ||
| 996 | </p><pre class="literallayout"> | ||
| 997 | do_package[sstate-inputdirs] = "${PKGDESTWORK} ${SHLIBSWORKDIR}" | ||
| 998 | do_package[sstate-outputdirs] = "${PKGDATA_DIR} ${SHLIBSDIR}" | ||
| 999 | do_package[sstate-lockfile] = "${PACKAGELOCK}" | ||
| 1000 | </pre><p> | ||
| 1001 | These methods also include the ability to take a lockfile when manipulating | ||
| 1002 | shared state directory structures since some cases are sensitive to file | ||
| 1003 | additions or removals. | ||
| 1004 | </p><p> | ||
| 1005 | Behind the scenes, the shared state code works by looking in | ||
| 1006 | <a class="link" href="#var-SSTATE_DIR" title="SSTATE_DIR"><code class="filename">SSTATE_DIR</code></a> and | ||
| 1007 | <a class="link" href="#var-SSTATE_MIRRORS" title="SSTATE_MIRRORS"><code class="filename">SSTATE_MIRRORS</code></a> | ||
| 1008 | for shared state files. | ||
| 1009 | Here is an example: | ||
| 1010 | </p><pre class="literallayout"> | ||
| 1011 | SSTATE_MIRRORS ?= "\ | ||
| 1012 | file://.* http://someserver.tld/share/sstate/PATH \n \ | ||
| 1013 | file://.* file:///some/local/dir/sstate/PATH" | ||
| 1014 | </pre><p> | ||
| 1015 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 1016 | The shared state directory (<code class="filename">SSTATE_DIR</code>) is | ||
| 1017 | organized into two-character subdirectories, where the subdirectory | ||
| 1018 | names are based on the first two characters of the hash. | ||
| 1019 | If the shared state directory structure for a mirror has the | ||
| 1020 | same structure as <code class="filename">SSTATE_DIR</code>, you must | ||
| 1021 | specify "PATH" as part of the URI to enable the build system | ||
| 1022 | to map to the appropriate subdirectory. | ||
| 1023 | </div><p> | ||
| 1024 | </p><p> | ||
| 1025 | The shared state package validity can be detected just by looking at the | ||
| 1026 | filename since the filename contains the task checksum (or signature) as | ||
| 1027 | described earlier in this section. | ||
| 1028 | If a valid shared state package is found, the build process downloads it | ||
| 1029 | and uses it to accelerate the task. | ||
| 1030 | </p><p> | ||
| 1031 | The build processes uses the <code class="filename">*_setscene</code> tasks | ||
| 1032 | for the task acceleration phase. | ||
| 1033 | BitBake goes through this phase before the main execution code and tries | ||
| 1034 | to accelerate any tasks for which it can find shared state packages. | ||
| 1035 | If a shared state package for a task is available, the shared state | ||
| 1036 | package is used. | ||
| 1037 | This means the task and any tasks on which it is dependent are not | ||
| 1038 | executed. | ||
| 1039 | </p><p> | ||
| 1040 | As a real world example, the aim is when building an IPK-based image, | ||
| 1041 | only the <code class="filename">do_package_write_ipk</code> tasks would have their | ||
| 1042 | shared state packages fetched and extracted. | ||
| 1043 | Since the sysroot is not used, it would never get extracted. | ||
| 1044 | This is another reason why a task-based approach is preferred over a | ||
| 1045 | recipe-based approach, which would have to install the output from every task. | ||
| 1046 | </p></div><div class="section" title="3.2.4. Tips and Tricks"><div class="titlepage"><div><div><h3 class="title"><a id="tips-and-tricks"></a>3.2.4. Tips and Tricks</h3></div></div></div><p> | ||
| 1047 | The code in the build system that supports incremental builds is not | ||
| 1048 | simple code. | ||
| 1049 | This section presents some tips and tricks that help you work around | ||
| 1050 | issues related to shared state code. | ||
| 1051 | </p><div class="section" title="3.2.4.1. Debugging"><div class="titlepage"><div><div><h4 class="title"><a id="debugging"></a>3.2.4.1. Debugging</h4></div></div></div><p> | ||
| 1052 | When things go wrong, debugging needs to be straightforward. | ||
| 1053 | Because of this, the Yocto Project team included strong debugging | ||
| 1054 | tools: | ||
| 1055 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>Whenever a shared state package is written out, so is a | ||
| 1056 | corresponding <code class="filename">.siginfo</code> file. | ||
| 1057 | This practice results in a pickled python database of all | ||
| 1058 | the metadata that went into creating the hash for a given shared state | ||
| 1059 | package.</p></li><li class="listitem"><p>If BitBake is run with the <code class="filename">--dump-signatures</code> | ||
| 1060 | (or <code class="filename">-S</code>) option, BitBake dumps out | ||
| 1061 | <code class="filename">.siginfo</code> files in | ||
| 1062 | the stamp directory for every task it would have executed instead of | ||
| 1063 | building the specified target package.</p></li><li class="listitem"><p>There is a <code class="filename">bitbake-diffsigs</code> command that | ||
| 1064 | can process these <code class="filename">.siginfo</code> files. | ||
| 1065 | If one file is specified, it will dump out the dependency | ||
| 1066 | information in the file. | ||
| 1067 | If two files are specified, it will compare the two files and dump out | ||
| 1068 | the differences between the two. | ||
| 1069 | This allows the question of "What changed between X and Y?" to be | ||
| 1070 | answered easily.</p></li></ul></div><p> | ||
| 1071 | </p></div><div class="section" title="3.2.4.2. Invalidating Shared State"><div class="titlepage"><div><div><h4 class="title"><a id="invalidating-shared-state"></a>3.2.4.2. Invalidating Shared State</h4></div></div></div><p> | ||
| 1072 | The shared state code uses checksums and shared state | ||
| 1073 | cache to avoid unnecessarily rebuilding tasks. | ||
| 1074 | As with all schemes, this one has some drawbacks. | ||
| 1075 | It is possible that you could make implicit changes that are not factored | ||
| 1076 | into the checksum calculation, but do affect a task's output. | ||
| 1077 | A good example is perhaps when a tool changes its output. | ||
| 1078 | Let's say that the output of <code class="filename">rpmdeps</code> needed to change. | ||
| 1079 | The result of the change should be that all the "package", "package_write_rpm", | ||
| 1080 | and "package_deploy-rpm" shared state cache items would become invalid. | ||
| 1081 | But, because this is a change that is external to the code and therefore implicit, | ||
| 1082 | the associated shared state cache items do not become invalidated. | ||
| 1083 | In this case, the build process would use the cached items rather than running the | ||
| 1084 | task again. | ||
| 1085 | Obviously, these types of implicit changes can cause problems. | ||
| 1086 | </p><p> | ||
| 1087 | To avoid these problems during the build, you need to understand the effects of any | ||
| 1088 | change you make. | ||
| 1089 | Note that any changes you make directly to a function automatically are factored into | ||
| 1090 | the checksum calculation and thus, will invalidate the associated area of sstate cache. | ||
| 1091 | You need to be aware of any implicit changes that are not obvious changes to the | ||
| 1092 | code and could affect the output of a given task. | ||
| 1093 | Once you are aware of such a change, you can take steps to invalidate the cache | ||
| 1094 | and force the task to run. | ||
| 1095 | The step to take is as simple as changing a function's comments in the source code. | ||
| 1096 | For example, to invalidate package shared state files, change the comment statements | ||
| 1097 | of <code class="filename">do_package</code> or the comments of one of the functions it calls. | ||
| 1098 | The change is purely cosmetic, but it causes the checksum to be recalculated and | ||
| 1099 | forces the task to be run again. | ||
| 1100 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 1101 | For an example of a commit that makes a cosmetic change to invalidate | ||
| 1102 | a shared state, see this | ||
| 1103 | <a class="ulink" href="http://git.yoctoproject.org/cgit.cgi/poky/commit/meta/classes/package.bbclass?id=737f8bbb4f27b4837047cb9b4fbfe01dfde36d54" target="_top">commit</a>. | ||
| 1104 | </div></div></div></div><div class="section" title="3.3. x32"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="x32"></a>3.3. x32</h2></div></div></div><p> | ||
| 1105 | x32 is a new processor-specific Application Binary Interface (psABI) for x86_64. | ||
| 1106 | An ABI defines the calling conventions between functions in a processing environment. | ||
| 1107 | The interface determines what registers are used and what the sizes are for various C data types. | ||
| 1108 | </p><p> | ||
| 1109 | Some processing environments prefer using 32-bit applications even when running | ||
| 1110 | on Intel 64-bit platforms. | ||
| 1111 | Consider the i386 psABI, which is a very old 32-bit ABI for Intel 64-bit platforms. | ||
| 1112 | The i386 psABI does not provide efficient use and access of the Intel 64-bit processor resources, | ||
| 1113 | leaving the system underutilized. | ||
| 1114 | Now consider the x86_64 psABI. | ||
| 1115 | This ABI is newer and uses 64-bits for data sizes and program pointers. | ||
| 1116 | The extra bits increase the footprint size of the programs, libraries, | ||
| 1117 | and also increases the memory and file system size requirements. | ||
| 1118 | Executing under the x32 psABI enables user programs to utilize CPU and system resources | ||
| 1119 | more efficiently while keeping the memory footprint of the applications low. | ||
| 1120 | Extra bits are used for registers but not for addressing mechanisms. | ||
| 1121 | </p><div class="section" title="3.3.1. Support"><div class="titlepage"><div><div><h3 class="title"><a id="support"></a>3.3.1. Support</h3></div></div></div><p> | ||
| 1122 | While the x32 psABI specifications are not fully finalized, this Yocto Project | ||
| 1123 | release supports current development specifications of x32 psABI. | ||
| 1124 | As of this release of the Yocto Project, x32 psABI support exists as follows: | ||
| 1125 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>You can create packages and images in x32 psABI format on x86_64 architecture targets. | ||
| 1126 | </p></li><li class="listitem"><p>You can use the x32 psABI support through the <code class="filename">meta-x32</code> | ||
| 1127 | layer on top of the OE-core/Yocto layer.</p></li><li class="listitem"><p>The toolchain from the <code class="filename">experimental/meta-x32</code> layer | ||
| 1128 | is used for building x32 psABI program binaries.</p></li><li class="listitem"><p>You can successfully build many recipes with the x32 toolchain.</p></li><li class="listitem"><p>You can create and boot <code class="filename">core-image-minimal</code> and | ||
| 1129 | <code class="filename">core-image-sato</code> images.</p></li></ul></div><p> | ||
| 1130 | </p></div><div class="section" title="3.3.2. Future Development and Limitations"><div class="titlepage"><div><div><h3 class="title"><a id="future-development-and-limitations"></a>3.3.2. Future Development and Limitations</h3></div></div></div><p> | ||
| 1131 | As of this Yocto Project release, the x32 psABI kernel and library interfaces | ||
| 1132 | specifications are not finalized. | ||
| 1133 | </p><p> | ||
| 1134 | Future Plans for the x32 psABI in the Yocto Project include the following: | ||
| 1135 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>Enhance and fix the few remaining recipes so they | ||
| 1136 | work with and support x32 toolchains.</p></li><li class="listitem"><p>Enhance RPM Package Manager (RPM) support for x32 binaries.</p></li><li class="listitem"><p>Support larger images.</p></li><li class="listitem"><p>Integrate x32 recipes, toolchain, and kernel changes from | ||
| 1137 | <code class="filename">experimental/meta-x32</code> into OE-core.</p></li></ul></div><p> | ||
| 1138 | </p></div><div class="section" title="3.3.3. Using x32 Right Now"><div class="titlepage"><div><div><h3 class="title"><a id="using-x32-right-now"></a>3.3.3. Using x32 Right Now</h3></div></div></div><p> | ||
| 1139 | Despite the fact the x32 psABI support is in development state for this release of the | ||
| 1140 | Yocto Project, you can follow these steps to use the x32 spABI: | ||
| 1141 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>Add the <code class="filename">experimental/meta-x32</code> layer to your local | ||
| 1142 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>. | ||
| 1143 | You can find the <code class="filename">experimental/meta-x32</code> source repository at | ||
| 1144 | <a class="ulink" href="http://git.yoctoproject.org" target="_top">http://git.yoctoproject.org</a>.</p></li><li class="listitem"><p>Edit your <code class="filename">conf/bblayers.conf</code> file so that it includes | ||
| 1145 | the <code class="filename">meta-x32</code>. | ||
| 1146 | Here is an example: | ||
| 1147 | </p><pre class="literallayout"> | ||
| 1148 | BBLAYERS ?= " \ | ||
| 1149 | /home/nitin/prj/poky.git/meta \ | ||
| 1150 | /home/nitin/prj/poky.git/meta-yocto \ | ||
| 1151 | /home/nitin/prj/poky.git/meta-yocto-bsp \ | ||
| 1152 | /home/nitin/prj/meta-x32.git \ | ||
| 1153 | " | ||
| 1154 | BBLAYERS_NON_REMOVABLE ?= " \ | ||
| 1155 | /home/nitin/prj/poky.git/meta \ | ||
| 1156 | /home/nitin/prj/poky.git/meta-yocto \ | ||
| 1157 | " | ||
| 1158 | </pre></li><li class="listitem"><p>Enable the x32 psABI tuning file for <code class="filename">x86_64</code> | ||
| 1159 | machines by editing the <code class="filename">conf/local.conf</code> like this: | ||
| 1160 | </p><pre class="literallayout"> | ||
| 1161 | MACHINE = "qemux86-64" | ||
| 1162 | DEFAULTTUNE = "x86-64-x32" | ||
| 1163 | baselib = "${@d.getVar('BASE_LIB_tune-' + (d.getVar('DEFAULTTUNE', True) \ | ||
| 1164 | or 'INVALID'), True) or 'lib'}" | ||
| 1165 | #MACHINE = "atom-pc" | ||
| 1166 | #DEFAULTTUNE = "core2-64-x32" | ||
| 1167 | </pre></li><li class="listitem"><p>As usual, use BitBake to build an image that supports the x32 psABI. | ||
| 1168 | Here is an example: | ||
| 1169 | </p><pre class="literallayout"> | ||
| 1170 | $ bitake core-image-sato | ||
| 1171 | </pre></li><li class="listitem"><p>As usual, run your image using QEMU: | ||
| 1172 | </p><pre class="literallayout"> | ||
| 1173 | $ runqemu qemux86-64 core-image-sato | ||
| 1174 | </pre></li></ul></div><p> | ||
| 1175 | </p></div></div><div class="section" title="3.4. Licenses"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="licenses"></a>3.4. Licenses</h2></div></div></div><p> | ||
| 1176 | This section describes the mechanism by which the OpenEmbedded build system | ||
| 1177 | tracks changes to licensing text. | ||
| 1178 | The section also describes how to enable commercially licensed recipes, | ||
| 1179 | which by default are disabled. | ||
| 1180 | </p><p> | ||
| 1181 | For information that can help you maintain compliance with various open | ||
| 1182 | source licensing during the lifecycle of the product, see the | ||
| 1183 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#maintaining-open-source-license-compliance-during-your-products-lifecycle" target="_top">Maintaining Open Source License Compliance During Your Project's Lifecycle</a>" section | ||
| 1184 | in the Yocto Project Development Manual. | ||
| 1185 | </p><div class="section" title="3.4.1. Tracking License Changes"><div class="titlepage"><div><div><h3 class="title"><a id="usingpoky-configuring-LIC_FILES_CHKSUM"></a>3.4.1. Tracking License Changes</h3></div></div></div><p> | ||
| 1186 | The license of an upstream project might change in the future. | ||
| 1187 | In order to prevent these changes going unnoticed, the | ||
| 1188 | <code class="filename"><a class="link" href="#var-LIC_FILES_CHKSUM" title="LIC_FILES_CHKSUM">LIC_FILES_CHKSUM</a></code> | ||
| 1189 | variable tracks changes to the license text. The checksums are validated at the end of the | ||
| 1190 | configure step, and if the checksums do not match, the build will fail. | ||
| 1191 | </p><div class="section" title="3.4.1.1. Specifying the LIC_FILES_CHKSUM Variable"><div class="titlepage"><div><div><h4 class="title"><a id="usingpoky-specifying-LIC_FILES_CHKSUM"></a>3.4.1.1. Specifying the <code class="filename">LIC_FILES_CHKSUM</code> Variable</h4></div></div></div><p> | ||
| 1192 | The <code class="filename">LIC_FILES_CHKSUM</code> | ||
| 1193 | variable contains checksums of the license text in the source code for the recipe. | ||
| 1194 | Following is an example of how to specify <code class="filename">LIC_FILES_CHKSUM</code>: | ||
| 1195 | </p><pre class="literallayout"> | ||
| 1196 | LIC_FILES_CHKSUM = "file://COPYING;md5=xxxx \ | ||
| 1197 | file://licfile1.txt;beginline=5;endline=29;md5=yyyy \ | ||
| 1198 | file://licfile2.txt;endline=50;md5=zzzz \ | ||
| 1199 | ..." | ||
| 1200 | </pre><p> | ||
| 1201 | </p><p> | ||
| 1202 | The build system uses the | ||
| 1203 | <code class="filename"><a class="link" href="#var-S" title="S">S</a></code> variable as the | ||
| 1204 | default directory used when searching files listed in | ||
| 1205 | <code class="filename">LIC_FILES_CHKSUM</code>. | ||
| 1206 | The previous example employs the default directory. | ||
| 1207 | </p><p> | ||
| 1208 | You can also use relative paths as shown in the following example: | ||
| 1209 | </p><pre class="literallayout"> | ||
| 1210 | LIC_FILES_CHKSUM = "file://src/ls.c;startline=5;endline=16;\ | ||
| 1211 | md5=bb14ed3c4cda583abc85401304b5cd4e" | ||
| 1212 | LIC_FILES_CHKSUM = "file://../license.html;md5=5c94767cedb5d6987c902ac850ded2c6" | ||
| 1213 | </pre><p> | ||
| 1214 | </p><p> | ||
| 1215 | In this example, the first line locates a file in | ||
| 1216 | <code class="filename">${S}/src/ls.c</code>. | ||
| 1217 | The second line refers to a file in | ||
| 1218 | <code class="filename"><a class="link" href="#var-WORKDIR" title="WORKDIR">WORKDIR</a></code>, which is the parent | ||
| 1219 | of <code class="filename"><a class="link" href="#var-S" title="S">S</a></code>. | ||
| 1220 | </p><p> | ||
| 1221 | Note that this variable is mandatory for all recipes, unless the | ||
| 1222 | <code class="filename">LICENSE</code> variable is set to "CLOSED". | ||
| 1223 | </p></div><div class="section" title="3.4.1.2. Explanation of Syntax"><div class="titlepage"><div><div><h4 class="title"><a id="usingpoky-LIC_FILES_CHKSUM-explanation-of-syntax"></a>3.4.1.2. Explanation of Syntax</h4></div></div></div><p> | ||
| 1224 | As mentioned in the previous section, the | ||
| 1225 | <code class="filename">LIC_FILES_CHKSUM</code> variable lists all the | ||
| 1226 | important files that contain the license text for the source code. | ||
| 1227 | It is possible to specify a checksum for an entire file, or a specific section of a | ||
| 1228 | file (specified by beginning and ending line numbers with the "beginline" and "endline" | ||
| 1229 | parameters, respectively). | ||
| 1230 | The latter is useful for source files with a license notice header, | ||
| 1231 | README documents, and so forth. | ||
| 1232 | If you do not use the "beginline" parameter, then it is assumed that the text begins on the | ||
| 1233 | first line of the file. | ||
| 1234 | Similarly, if you do not use the "endline" parameter, it is assumed that the license text | ||
| 1235 | ends with the last line of the file. | ||
| 1236 | </p><p> | ||
| 1237 | The "md5" parameter stores the md5 checksum of the license text. | ||
| 1238 | If the license text changes in any way as compared to this parameter | ||
| 1239 | then a mismatch occurs. | ||
| 1240 | This mismatch triggers a build failure and notifies the developer. | ||
| 1241 | Notification allows the developer to review and address the license text changes. | ||
| 1242 | Also note that if a mismatch occurs during the build, the correct md5 | ||
| 1243 | checksum is placed in the build log and can be easily copied to the recipe. | ||
| 1244 | </p><p> | ||
| 1245 | There is no limit to how many files you can specify using the | ||
| 1246 | <code class="filename">LIC_FILES_CHKSUM</code> variable. | ||
| 1247 | Generally, however, every project requires a few specifications for license tracking. | ||
| 1248 | Many projects have a "COPYING" file that stores the license information for all the source | ||
| 1249 | code files. | ||
| 1250 | This practice allows you to just track the "COPYING" file as long as it is kept up to date. | ||
| 1251 | </p><div class="tip" title="Tip" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Tip</h3> | ||
| 1252 | If you specify an empty or invalid "md5" parameter, BitBake returns an md5 mis-match | ||
| 1253 | error and displays the correct "md5" parameter value during the build. | ||
| 1254 | The correct parameter is also captured in the build log. | ||
| 1255 | </div><div class="tip" title="Tip" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Tip</h3> | ||
| 1256 | If the whole file contains only license text, you do not need to use the "beginline" and | ||
| 1257 | "endline" parameters. | ||
| 1258 | </div></div></div><div class="section" title="3.4.2. Enabling Commercially Licensed Recipes"><div class="titlepage"><div><div><h3 class="title"><a id="enabling-commercially-licensed-recipes"></a>3.4.2. Enabling Commercially Licensed Recipes</h3></div></div></div><p> | ||
| 1259 | By default, the OpenEmbedded build system disables | ||
| 1260 | components that have commercial or other special licensing | ||
| 1261 | requirements. | ||
| 1262 | Such requirements are defined on a | ||
| 1263 | recipe-by-recipe basis through the <code class="filename">LICENSE_FLAGS</code> variable | ||
| 1264 | definition in the affected recipe. | ||
| 1265 | For instance, the | ||
| 1266 | <code class="filename">$HOME/poky/meta/recipes-multimedia/gstreamer/gst-plugins-ugly</code> | ||
| 1267 | recipe contains the following statement: | ||
| 1268 | </p><pre class="literallayout"> | ||
| 1269 | LICENSE_FLAGS = "commercial" | ||
| 1270 | </pre><p> | ||
| 1271 | Here is a slightly more complicated example that contains both an | ||
| 1272 | explicit recipe name and version (after variable expansion): | ||
| 1273 | </p><pre class="literallayout"> | ||
| 1274 | LICENSE_FLAGS = "license_${PN}_${PV}" | ||
| 1275 | </pre><p> | ||
| 1276 | In order for a component restricted by a <code class="filename">LICENSE_FLAGS</code> | ||
| 1277 | definition to be enabled and included in an image, it | ||
| 1278 | needs to have a matching entry in the global | ||
| 1279 | <code class="filename">LICENSE_FLAGS_WHITELIST</code> variable, which is a variable | ||
| 1280 | typically defined in your <code class="filename">local.conf</code> file. | ||
| 1281 | For example, to enable | ||
| 1282 | the <code class="filename">$HOME/poky/meta/recipes-multimedia/gstreamer/gst-plugins-ugly</code> | ||
| 1283 | package, you could add either the string | ||
| 1284 | "commercial_gst-plugins-ugly" or the more general string | ||
| 1285 | "commercial" to <code class="filename">LICENSE_FLAGS_WHITELIST</code>. | ||
| 1286 | See the | ||
| 1287 | "<a class="link" href="#license-flag-matching" title="3.4.2.1. License Flag Matching">License Flag Matching</a>" section | ||
| 1288 | for a full explanation of how <code class="filename">LICENSE_FLAGS</code> matching works. | ||
| 1289 | Here is the example: | ||
| 1290 | </p><pre class="literallayout"> | ||
| 1291 | LICENSE_FLAGS_WHITELIST = "commercial_gst-plugins-ugly" | ||
| 1292 | </pre><p> | ||
| 1293 | Likewise, to additionally enable the package built from the recipe containing | ||
| 1294 | <code class="filename">LICENSE_FLAGS = "license_${PN}_${PV}"</code>, and assuming | ||
| 1295 | that the actual recipe name was <code class="filename">emgd_1.10.bb</code>, | ||
| 1296 | the following string would enable that package as well as | ||
| 1297 | the original <code class="filename">gst-plugins-ugly</code> package: | ||
| 1298 | </p><pre class="literallayout"> | ||
| 1299 | LICENSE_FLAGS_WHITELIST = "commercial_gst-plugins-ugly license_emgd_1.10" | ||
| 1300 | </pre><p> | ||
| 1301 | As a convenience, you do not need to specify the complete license string | ||
| 1302 | in the whitelist for every package. | ||
| 1303 | you can use an abbreviated form, which consists | ||
| 1304 | of just the first portion or portions of the license string before | ||
| 1305 | the initial underscore character or characters. | ||
| 1306 | A partial string will match | ||
| 1307 | any license that contains the given string as the first | ||
| 1308 | portion of its license. | ||
| 1309 | For example, the following | ||
| 1310 | whitelist string will also match both of the packages | ||
| 1311 | previously mentioned as well as any other packages that have | ||
| 1312 | licenses starting with "commercial" or "license". | ||
| 1313 | </p><pre class="literallayout"> | ||
| 1314 | LICENSE_FLAGS_WHITELIST = "commercial license" | ||
| 1315 | </pre><p> | ||
| 1316 | </p><div class="section" title="3.4.2.1. License Flag Matching"><div class="titlepage"><div><div><h4 class="title"><a id="license-flag-matching"></a>3.4.2.1. License Flag Matching</h4></div></div></div><p> | ||
| 1317 | The definition of 'matching' in reference to a | ||
| 1318 | recipe's <code class="filename">LICENSE_FLAGS</code> setting is simple. | ||
| 1319 | However, some things exist that you should know about in order to | ||
| 1320 | correctly and effectively use it. | ||
| 1321 | </p><p> | ||
| 1322 | Before a flag | ||
| 1323 | defined by a particular recipe is tested against the | ||
| 1324 | contents of the <code class="filename">LICENSE_FLAGS_WHITELIST</code> variable, the | ||
| 1325 | string <code class="filename">_${PN}</code> (with | ||
| 1326 | <a class="link" href="#var-PN" title="PN"><code class="filename">PN</code></a> expanded of course) is | ||
| 1327 | appended to the flag, thus automatically making each | ||
| 1328 | <code class="filename">LICENSE_FLAGS</code> value recipe-specific. | ||
| 1329 | That string is | ||
| 1330 | then matched against the whitelist. | ||
| 1331 | So if you specify <code class="filename">LICENSE_FLAGS = "commercial"</code> in recipe | ||
| 1332 | "foo" for example, the string <code class="filename">"commercial_foo"</code> | ||
| 1333 | would normally be what is specified in the whitelist in order for it to | ||
| 1334 | match. | ||
| 1335 | </p><p> | ||
| 1336 | You can broaden the match by | ||
| 1337 | putting any "_"-separated beginning subset of a | ||
| 1338 | <code class="filename">LICENSE_FLAGS</code> flag in the whitelist, which will also | ||
| 1339 | match. | ||
| 1340 | For example, simply specifying "commercial" in | ||
| 1341 | the whitelist would match any expanded <code class="filename">LICENSE_FLAGS</code> | ||
| 1342 | definition starting with "commercial" such as | ||
| 1343 | "commercial_foo" and "commercial_bar", which are the | ||
| 1344 | strings that would be automatically generated for | ||
| 1345 | hypothetical "foo" and "bar" recipes assuming those | ||
| 1346 | recipes had simply specified the following: | ||
| 1347 | </p><pre class="literallayout"> | ||
| 1348 | LICENSE_FLAGS = "commercial" | ||
| 1349 | </pre><p> | ||
| 1350 | </p><p> | ||
| 1351 | Broadening the match allows for a range of specificity for the items | ||
| 1352 | in the whitelist, from more general to perfectly | ||
| 1353 | specific. | ||
| 1354 | So you have the choice of exhaustively | ||
| 1355 | enumerating each license flag in the whitelist to | ||
| 1356 | allow only those specific recipes into the image, or | ||
| 1357 | of using a more general string to pick up anything | ||
| 1358 | matching just the first component or components of the specified | ||
| 1359 | string. | ||
| 1360 | </p><p> | ||
| 1361 | This scheme works even if the flag already | ||
| 1362 | has <code class="filename">_${PN}</code> appended - the extra <code class="filename">_${PN}</code> is | ||
| 1363 | redundant, but does not affect the outcome. | ||
| 1364 | For example, a license flag of "commercial_1.2_foo" would | ||
| 1365 | turn into "commercial_1.2_foo_foo" and would match | ||
| 1366 | both the general "commercial" and the specific | ||
| 1367 | "commercial_1.2_foo", as expected. | ||
| 1368 | The flag would also match | ||
| 1369 | "commercial_1.2_foo_foo" and "commercial_1.2", which | ||
| 1370 | does not make much sense regarding use in the whitelist. | ||
| 1371 | </p><p> | ||
| 1372 | For a versioned string, you could instead specify | ||
| 1373 | "commercial_foo_1.2", which would turn into | ||
| 1374 | "commercial_foo_1.2_foo". | ||
| 1375 | And, as expected, this flag allows | ||
| 1376 | you to pick up this package along with | ||
| 1377 | anything else "commercial" when you specify "commercial" | ||
| 1378 | in the whitelist. | ||
| 1379 | Or, the flag allows you to pick up this package along with anything "commercial_foo" | ||
| 1380 | regardless of version when you use "commercial_foo" in the whitelist. | ||
| 1381 | Finally, you can be completely specific about the package and version and specify | ||
| 1382 | "commercial_foo_1.2" package and version. | ||
| 1383 | </p></div><div class="section" title="3.4.2.2. Other Variables Related to Commercial Licenses"><div class="titlepage"><div><div><h4 class="title"><a id="other-variables-related-to-commercial-licenses"></a>3.4.2.2. Other Variables Related to Commercial Licenses</h4></div></div></div><p> | ||
| 1384 | Other helpful variables related to commercial | ||
| 1385 | license handling exist and are defined in the | ||
| 1386 | <code class="filename">$HOME/poky/meta/conf/distro/include/default-distrovars.inc</code> file: | ||
| 1387 | </p><pre class="literallayout"> | ||
| 1388 | COMMERCIAL_AUDIO_PLUGINS ?= "" | ||
| 1389 | COMMERCIAL_VIDEO_PLUGINS ?= "" | ||
| 1390 | COMMERCIAL_QT = "" | ||
| 1391 | </pre><p> | ||
| 1392 | If you want to enable these components, you can do so by making sure you have | ||
| 1393 | the following statements in your <code class="filename">local.conf</code> configuration file: | ||
| 1394 | </p><pre class="literallayout"> | ||
| 1395 | COMMERCIAL_AUDIO_PLUGINS = "gst-plugins-ugly-mad \ | ||
| 1396 | gst-plugins-ugly-mpegaudioparse" | ||
| 1397 | COMMERCIAL_VIDEO_PLUGINS = "gst-plugins-ugly-mpeg2dec \ | ||
| 1398 | gst-plugins-ugly-mpegstream gst-plugins-bad-mpegvideoparse" | ||
| 1399 | COMMERCIAL_QT ?= "qmmp" | ||
| 1400 | LICENSE_FLAGS_WHITELIST = "commercial_gst-plugins-ugly commercial_gst-plugins-bad commercial_qmmp" | ||
| 1401 | </pre><p> | ||
| 1402 | Of course, you could also create a matching whitelist | ||
| 1403 | for those components using the more general "commercial" | ||
| 1404 | in the whitelist, but that would also enable all the | ||
| 1405 | other packages with <code class="filename">LICENSE_FLAGS</code> containing | ||
| 1406 | "commercial", which you may or may not want: | ||
| 1407 | </p><pre class="literallayout"> | ||
| 1408 | LICENSE_FLAGS_WHITELIST = "commercial" | ||
| 1409 | </pre><p> | ||
| 1410 | </p><p> | ||
| 1411 | Specifying audio and video plug-ins as part of the | ||
| 1412 | <code class="filename">COMMERCIAL_AUDIO_PLUGINS</code> and | ||
| 1413 | <code class="filename">COMMERCIAL_VIDEO_PLUGINS</code> statements | ||
| 1414 | or commercial qt components as part of | ||
| 1415 | the <code class="filename">COMMERCIAL_QT</code> statement (along | ||
| 1416 | with the enabling <code class="filename">LICENSE_FLAGS_WHITELIST</code>) includes the | ||
| 1417 | plug-ins or components into built images, thus adding | ||
| 1418 | support for media formats or components. | ||
| 1419 | </p></div></div></div></div> | ||
| 1420 | |||
| 1421 | <div class="chapter" title="Chapter 4. Migrating to a Newer Yocto Project Release"><div class="titlepage"><div><div><h2 class="title"><a id="migration"></a>Chapter 4. Migrating to a Newer Yocto Project Release</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="section"><a href="#moving-to-the-yocto-project-1.3-release">4.1. Moving to the Yocto Project 1.3 Release</a></span></dt><dd><dl><dt><span class="section"><a href="#1.3-local-configuration">4.1.1. Local Configuration</a></span></dt><dt><span class="section"><a href="#1.3-recipes">4.1.2. Recipes</a></span></dt></dl></dd></dl></div><p> | ||
| 1422 | This chapter provides information you can use to migrate work to a | ||
| 1423 | newer Yocto Project release. You can find the same information in the | ||
| 1424 | release notes for a given release. | ||
| 1425 | </p><div class="section" title="4.1. Moving to the Yocto Project 1.3 Release"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="moving-to-the-yocto-project-1.3-release"></a>4.1. Moving to the Yocto Project 1.3 Release</h2></div></div></div><p> | ||
| 1426 | This section provides migration information for moving to the | ||
| 1427 | Yocto Project 1.3 Release. | ||
| 1428 | </p><div class="section" title="4.1.1. Local Configuration"><div class="titlepage"><div><div><h3 class="title"><a id="1.3-local-configuration"></a>4.1.1. Local Configuration</h3></div></div></div><p> | ||
| 1429 | Differences include changes for | ||
| 1430 | <a class="link" href="#var-SSTATE_MIRRORS" title="SSTATE_MIRRORS"><code class="filename">SSTATE_MIRRORS</code></a> | ||
| 1431 | and <code class="filename">bblayers.conf</code>. | ||
| 1432 | </p><div class="section" title="4.1.1.1. SSTATE_MIRRORS"><div class="titlepage"><div><div><h4 class="title"><a id="migration-1.3-sstate-mirrors"></a>4.1.1.1. SSTATE_MIRRORS</h4></div></div></div><p> | ||
| 1433 | The shared state cache (sstate-cache) as pointed to by | ||
| 1434 | <a class="link" href="#var-SSTATE_DIR" title="SSTATE_DIR"><code class="filename">SSTATE_DIR</code></a> by default | ||
| 1435 | now has two-character subdirectories to prevent there being an issue with too | ||
| 1436 | many files in the same directory. | ||
| 1437 | Also, native sstate-cache packages will go into a subdirectory named using | ||
| 1438 | the distro ID string. | ||
| 1439 | If you copy the newly structured sstate-cache to a mirror location | ||
| 1440 | (either local or remote) and then point to it in | ||
| 1441 | <a class="link" href="#var-SSTATE_MIRRORS" title="SSTATE_MIRRORS"><code class="filename">SSTATE_MIRRORS</code></a>, | ||
| 1442 | you need to append "PATH" to the end of the mirror URL so that | ||
| 1443 | the path used by BitBake before the mirror substitution is | ||
| 1444 | appended to the path used to access the mirror. | ||
| 1445 | Here is an example: | ||
| 1446 | </p><pre class="literallayout"> | ||
| 1447 | SSTATE_MIRRORS = "file://.* http://someserver.tld/share/sstate/PATH" | ||
| 1448 | </pre><p> | ||
| 1449 | </p></div><div class="section" title="4.1.1.2. bblayers.conf"><div class="titlepage"><div><div><h4 class="title"><a id="migration-1.3-bblayers-conf"></a>4.1.1.2. bblayers.conf</h4></div></div></div><p> | ||
| 1450 | The <code class="filename">meta-yocto</code> layer has been split into | ||
| 1451 | two parts: <code class="filename">meta-yocto</code> and | ||
| 1452 | <code class="filename">meta-yocto-bsp</code>, corresponding to the | ||
| 1453 | Poky reference distro configuration and the reference | ||
| 1454 | hardware Board Support Packages (BSPs), respectively. | ||
| 1455 | When running BitBake or Hob for the first time after upgrading, | ||
| 1456 | your <code class="filename">conf/bblayers.conf</code> file will be | ||
| 1457 | updated to handle this change and you will be asked to | ||
| 1458 | re-run/restart for the changes to take effect. | ||
| 1459 | </p></div></div><div class="section" title="4.1.2. Recipes"><div class="titlepage"><div><div><h3 class="title"><a id="1.3-recipes"></a>4.1.2. Recipes</h3></div></div></div><p> | ||
| 1460 | Differences include changes for the following: | ||
| 1461 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>Python function whitespace</p></li><li class="listitem"><p><code class="filename">proto=</code> in <code class="filename">SRC_URI</code></p></li><li class="listitem"><p><code class="filename">nativesdk</code></p></li><li class="listitem"><p>Task recipes</p></li><li class="listitem"><p><code class="filename">IMAGE_FEATURES</code></p></li><li class="listitem"><p>Removed recipes</p></li></ul></div><p> | ||
| 1462 | </p><div class="section" title="4.1.2.1. Python Function Whitespace"><div class="titlepage"><div><div><h4 class="title"><a id="migration-1.3-python-function-whitespace"></a>4.1.2.1. Python Function Whitespace</h4></div></div></div><p> | ||
| 1463 | All Python functions must now use four spaces for indentation. | ||
| 1464 | Previously, an inconsistent mix of spaces and tabs existed, | ||
| 1465 | which made extending these functions using | ||
| 1466 | <code class="filename">_append</code> or <code class="filename">_prepend</code> | ||
| 1467 | complicated given that Python treats whitespace as | ||
| 1468 | syntactically significant. | ||
| 1469 | If you are defining or extending any Python functions (e.g. | ||
| 1470 | <code class="filename">populate_packages</code>, <code class="filename">do_unpack</code>, | ||
| 1471 | <code class="filename">do_patch</code> and so forth) in custom recipes | ||
| 1472 | or classes, you need to ensure you are using consistent | ||
| 1473 | four-space indentation. | ||
| 1474 | </p></div><div class="section" title="4.1.2.2. proto= in SRC_URI"><div class="titlepage"><div><div><h4 class="title"><a id="migration-1.3-proto=-in-src-uri"></a>4.1.2.2. proto= in SRC_URI</h4></div></div></div><p> | ||
| 1475 | Any use of <code class="filename">proto=</code> in | ||
| 1476 | <a class="link" href="#var-SRC_URI" title="SRC_URI"><code class="filename">SRC_URI</code></a> | ||
| 1477 | needs to be changed to <code class="filename">protocol=</code>. | ||
| 1478 | In particular, this applies to the following URIs: | ||
| 1479 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><code class="filename">svn://</code></p></li><li class="listitem"><p><code class="filename">bzr://</code></p></li><li class="listitem"><p><code class="filename">hg://</code></p></li><li class="listitem"><p><code class="filename">osc://</code></p></li></ul></div><p> | ||
| 1480 | Other URIs were already using <code class="filename">protocol=</code>. | ||
| 1481 | This change improves consistency. | ||
| 1482 | </p></div><div class="section" title="4.1.2.3. nativesdk"><div class="titlepage"><div><div><h4 class="title"><a id="migration-1.3-nativesdk"></a>4.1.2.3. nativesdk</h4></div></div></div><p> | ||
| 1483 | The suffix <code class="filename">nativesdk</code> is now implemented | ||
| 1484 | as a prefix, which simplifies a lot of the packaging code for | ||
| 1485 | <code class="filename">nativesdk</code> recipes. | ||
| 1486 | All custom <code class="filename">nativesdk</code> recipes and any | ||
| 1487 | references need to be updated to use | ||
| 1488 | <code class="filename">nativesdk-*</code> instead of | ||
| 1489 | <code class="filename">*-nativesdk</code>. | ||
| 1490 | </p></div><div class="section" title="4.1.2.4. Task Recipes"><div class="titlepage"><div><div><h4 class="title"><a id="migration-1.3-task-recipes"></a>4.1.2.4. Task Recipes</h4></div></div></div><p> | ||
| 1491 | "Task" recipes are now known as "Package groups" and have | ||
| 1492 | been renamed from <code class="filename">task-*.bb</code> to | ||
| 1493 | <code class="filename">packagegroup-*.bb</code>. | ||
| 1494 | Existing references to the previous <code class="filename">task-*</code> | ||
| 1495 | names should work in most cases as there is an automatic | ||
| 1496 | upgrade path for most packages. | ||
| 1497 | However, you should update references in your own recipes and | ||
| 1498 | configurations as they could be removed in future releases. | ||
| 1499 | You should also rename any custom <code class="filename">task-*</code> | ||
| 1500 | recipes to <code class="filename">packagegroup-*</code>, and change | ||
| 1501 | them to inherit <code class="filename">packagegroup</code> instead of | ||
| 1502 | <code class="filename">task</code>, as well as taking the opportunity | ||
| 1503 | to remove anything now handled by | ||
| 1504 | <code class="filename">packagegroup.bbclass</code>, such as providing | ||
| 1505 | <code class="filename">-dev</code> and <code class="filename">-dbg</code> | ||
| 1506 | packages, setting | ||
| 1507 | <a class="link" href="#var-LIC_FILES_CHKSUM" title="LIC_FILES_CHKSUM"><code class="filename">LIC_FILES_CHKSUM</code></a>, | ||
| 1508 | and so forth. | ||
| 1509 | See the | ||
| 1510 | "<a class="link" href="#ref-classes-packagegroup" title="7.12. Package Groups - packagegroup.bbclass">Package Groups - packagegroup.bbclass</a>" | ||
| 1511 | section for further details. | ||
| 1512 | </p></div><div class="section" title="4.1.2.5. IMAGE_FEATURES"><div class="titlepage"><div><div><h4 class="title"><a id="migration-1.3-image-features"></a>4.1.2.5. IMAGE_FEATURES</h4></div></div></div><p> | ||
| 1513 | Image recipes that previously included "apps-console-core" | ||
| 1514 | in <a class="link" href="#var-IMAGE_FEATURES" title="IMAGE_FEATURES"><code class="filename">IMAGE_FEATURES</code></a> | ||
| 1515 | should now include "splash" instead to enable the boot-up | ||
| 1516 | splash screen. | ||
| 1517 | Retaining "apps-console-core" will still include the splash | ||
| 1518 | screen generates a warning. | ||
| 1519 | The "apps-x11-core" and "apps-x11-games" | ||
| 1520 | <code class="filename">IMAGE_FEATURES</code> features have been removed. | ||
| 1521 | </p></div><div class="section" title="4.1.2.6. Removed Recipes"><div class="titlepage"><div><div><h4 class="title"><a id="migration-1.3-removed-recipes"></a>4.1.2.6. Removed Recipes</h4></div></div></div><p> | ||
| 1522 | The following recipes have been removed. | ||
| 1523 | For most of them, it is unlikely that you would have any | ||
| 1524 | references to them in your own metadata. | ||
| 1525 | However, you should check your metadata against this list to be sure: | ||
| 1526 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em><code class="filename">libx11-trim</code></em></span>: | ||
| 1527 | Replaced by <code class="filename">libx11</code>, which has a negligible | ||
| 1528 | size difference with modern Xorg.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">xserver-xorg-lite</code></em></span>: | ||
| 1529 | Use <code class="filename">xserver-xorg</code>, which has a negligible | ||
| 1530 | size difference when DRI and GLX modules are not installed.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">xserver-kdrive</code></em></span>: | ||
| 1531 | Effectively unmaintained for many years.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">mesa-xlib</code></em></span>: | ||
| 1532 | No longer serves any purpose.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">galago</code></em></span>: | ||
| 1533 | Replaced by telepathy.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">gail</code></em></span>: | ||
| 1534 | Functionality was integrated into GTK+ 2.13.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">eggdbus</code></em></span>: | ||
| 1535 | No longer needed.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">gcc-*-intermediate</code></em></span>: | ||
| 1536 | The build has been restructured to avoid the need for | ||
| 1537 | this step.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">libgsmd</code></em></span>: | ||
| 1538 | Unmaintained for many years. | ||
| 1539 | Functionality now provided by | ||
| 1540 | <code class="filename">ofono</code> instead.</p></li><li class="listitem"><p><span class="emphasis"><em>contacts, dates, tasks, eds-tools</em></span>: | ||
| 1541 | Largely unmaintained PIM application suite. | ||
| 1542 | It has been moved to <code class="filename">meta-gnome</code> | ||
| 1543 | in <code class="filename">meta-openembedded</code>.</p></li></ul></div><p> | ||
| 1544 | In addition to the previously listed changes, the | ||
| 1545 | <code class="filename">meta-demoapps</code> directory has also been removed | ||
| 1546 | because the recipes in it were not being maintained and many | ||
| 1547 | had become obsolete or broken. | ||
| 1548 | Additionally, these recipes were not parsed in the default configuration. | ||
| 1549 | Many of these recipes are already provided in an updated and | ||
| 1550 | maintained form within OpenEmbedded community layers such as | ||
| 1551 | <code class="filename">meta-oe</code> and <code class="filename">meta-gnome</code>. | ||
| 1552 | For the remainder, you can now find them in the | ||
| 1553 | <code class="filename">meta-extras</code> repository, which is in the | ||
| 1554 | Yocto Project source repositories. | ||
| 1555 | </p></div></div></div></div> | ||
| 1556 | |||
| 1557 | <div class="chapter" title="Chapter 5. Source Directory Structure"><div class="titlepage"><div><div><h2 class="title"><a id="ref-structure"></a>Chapter 5. Source Directory Structure</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="section"><a href="#structure-core">5.1. Top level core components</a></span></dt><dd><dl><dt><span class="section"><a href="#structure-core-bitbake">5.1.1. <code class="filename">bitbake/</code></a></span></dt><dt><span class="section"><a href="#structure-core-build">5.1.2. <code class="filename">build/</code></a></span></dt><dt><span class="section"><a href="#handbook">5.1.3. <code class="filename">documentation</code></a></span></dt><dt><span class="section"><a href="#structure-core-meta">5.1.4. <code class="filename">meta/</code></a></span></dt><dt><span class="section"><a href="#structure-core-meta-yocto">5.1.5. <code class="filename">meta-yocto/</code></a></span></dt><dt><span class="section"><a href="#structure-core-meta-yocto-bsp">5.1.6. <code class="filename">meta-yocto-bsp/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-hob">5.1.7. <code class="filename">meta-hob/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-skeleton">5.1.8. <code class="filename">meta-skeleton/</code></a></span></dt><dt><span class="section"><a href="#structure-core-scripts">5.1.9. <code class="filename">scripts/</code></a></span></dt><dt><span class="section"><a href="#structure-core-script">5.1.10. <code class="filename">oe-init-build-env</code></a></span></dt><dt><span class="section"><a href="#structure-basic-top-level">5.1.11. <code class="filename">LICENSE, README, and README.hardware</code></a></span></dt></dl></dd><dt><span class="section"><a href="#structure-build">5.2. The Build Directory - <code class="filename">build/</code></a></span></dt><dd><dl><dt><span class="section"><a href="#structure-build-pseudodone">5.2.1. <code class="filename">build/pseudodone</code></a></span></dt><dt><span class="section"><a href="#structure-build-conf-local.conf">5.2.2. <code class="filename">build/conf/local.conf</code></a></span></dt><dt><span class="section"><a href="#structure-build-conf-bblayers.conf">5.2.3. <code class="filename">build/conf/bblayers.conf</code></a></span></dt><dt><span class="section"><a href="#structure-build-conf-sanity_info">5.2.4. <code class="filename">build/conf/sanity_info</code></a></span></dt><dt><span class="section"><a href="#structure-build-downloads">5.2.5. <code class="filename">build/downloads/</code></a></span></dt><dt><span class="section"><a href="#structure-build-sstate-cache">5.2.6. <code class="filename">build/sstate-cache/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp">5.2.7. <code class="filename">build/tmp/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-buildstats">5.2.8. <code class="filename">build/tmp/buildstats/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-cache">5.2.9. <code class="filename">build/tmp/cache/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-deploy">5.2.10. <code class="filename">build/tmp/deploy/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-deploy-deb">5.2.11. <code class="filename">build/tmp/deploy/deb/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-deploy-rpm">5.2.12. <code class="filename">build/tmp/deploy/rpm/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-deploy-licenses">5.2.13. <code class="filename">build/tmp/deploy/licenses/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-deploy-images">5.2.14. <code class="filename">build/tmp/deploy/images/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-deploy-ipk">5.2.15. <code class="filename">build/tmp/deploy/ipk/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-sysroots">5.2.16. <code class="filename">build/tmp/sysroots/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-stamps">5.2.17. <code class="filename">build/tmp/stamps/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-log">5.2.18. <code class="filename">build/tmp/log/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-pkgdata">5.2.19. <code class="filename">build/tmp/pkgdata/</code></a></span></dt><dt><span class="section"><a href="#structure-build-tmp-work">5.2.20. <code class="filename">build/tmp/work/</code></a></span></dt></dl></dd><dt><span class="section"><a href="#structure-meta">5.3. The Metadata - <code class="filename">meta/</code></a></span></dt><dd><dl><dt><span class="section"><a href="#structure-meta-classes">5.3.1. <code class="filename">meta/classes/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-conf">5.3.2. <code class="filename">meta/conf/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-conf-machine">5.3.3. <code class="filename">meta/conf/machine/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-conf-distro">5.3.4. <code class="filename">meta/conf/distro/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-bsp">5.3.5. <code class="filename">meta/recipes-bsp/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-connectivity">5.3.6. <code class="filename">meta/recipes-connectivity/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-core">5.3.7. <code class="filename">meta/recipes-core/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-devtools">5.3.8. <code class="filename">meta/recipes-devtools/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-extended">5.3.9. <code class="filename">meta/recipes-extended/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-gnome">5.3.10. <code class="filename">meta/recipes-gnome/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-graphics">5.3.11. <code class="filename">meta/recipes-graphics/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-kernel">5.3.12. <code class="filename">meta/recipes-kernel/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-multimedia">5.3.13. <code class="filename">meta/recipes-multimedia/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-qt">5.3.14. <code class="filename">meta/recipes-qt/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-rt">5.3.15. <code class="filename">meta/recipes-rt/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-sato">5.3.16. <code class="filename">meta/recipes-sato/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-support">5.3.17. <code class="filename">meta/recipes-support/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-site">5.3.18. <code class="filename">meta/site/</code></a></span></dt><dt><span class="section"><a href="#structure-meta-recipes-txt">5.3.19. <code class="filename">meta/recipes.txt</code></a></span></dt></dl></dd></dl></div><p> | ||
| 1558 | The <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a> consists of several components. | ||
| 1559 | Understanding them and knowing where they are located is key to using the Yocto Project well. | ||
| 1560 | This chapter describes the Source Directory and gives information about the various | ||
| 1561 | files and directories. | ||
| 1562 | </p><p> | ||
| 1563 | For information on how to establish a local Source Directory on your development system, see the | ||
| 1564 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#getting-setup" target="_top">Getting Set Up</a>" | ||
| 1565 | section in the Yocto Project Development Manual. | ||
| 1566 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 1567 | The OpenEmbedded build system does not support file or directory names that | ||
| 1568 | contain spaces. | ||
| 1569 | Be sure that the Source Directory you use does not contain these types | ||
| 1570 | of names. | ||
| 1571 | </div><div class="section" title="5.1. Top level core components"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="structure-core"></a>5.1. Top level core components</h2></div></div></div><div class="section" title="5.1.1. bitbake/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-core-bitbake"></a>5.1.1. <code class="filename">bitbake/</code></h3></div></div></div><p> | ||
| 1572 | The <a class="ulink" href="source-directory" target="_top">Source Directory</a> | ||
| 1573 | includes a copy of BitBake for ease of use. | ||
| 1574 | The copy usually matches the current stable BitBake release from the BitBake project. | ||
| 1575 | BitBake, a metadata interpreter, reads the Yocto Project metadata and runs the tasks | ||
| 1576 | defined by that data. | ||
| 1577 | Failures are usually from the metadata and not from BitBake itself. | ||
| 1578 | Consequently, most users do not need to worry about BitBake. | ||
| 1579 | </p><p> | ||
| 1580 | When you run the <code class="filename">bitbake</code> command, the wrapper script in | ||
| 1581 | <code class="filename">scripts/</code> is executed to run the main BitBake executable, | ||
| 1582 | which resides in the <code class="filename">bitbake/bin/</code> directory. | ||
| 1583 | Sourcing the <a class="link" href="#structure-core-script" title="5.1.10. oe-init-build-env">oe-init-build-env</a> | ||
| 1584 | script places the <code class="filename">scripts</code> and <code class="filename">bitbake/bin</code> | ||
| 1585 | directories (in that order) into the shell's <code class="filename">PATH</code> environment | ||
| 1586 | variable. | ||
| 1587 | </p><p> | ||
| 1588 | For more information on BitBake, see the BitBake documentation | ||
| 1589 | inculded in the <code class="filename">bitbake/doc/manual</code> directory of the | ||
| 1590 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 1591 | </p></div><div class="section" title="5.1.2. build/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-core-build"></a>5.1.2. <code class="filename">build/</code></h3></div></div></div><p> | ||
| 1592 | This directory contains user configuration files and the output | ||
| 1593 | generated by the OpenEmbedded build system in its standard configuration where | ||
| 1594 | the source tree is combined with the output. | ||
| 1595 | The <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a> | ||
| 1596 | is created initially when you <code class="filename">source</code> | ||
| 1597 | the OpenEmbedded build environment setup script <code class="filename">oe-init-build-env</code>. | ||
| 1598 | </p><p> | ||
| 1599 | It is also possible to place output and configuration | ||
| 1600 | files in a directory separate from the | ||
| 1601 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a> | ||
| 1602 | by providing a directory name when you <code class="filename">source</code> | ||
| 1603 | the setup script. | ||
| 1604 | For information on separating output from your local Source Directory files, see <a class="link" href="#structure-core-script" title="5.1.10. oe-init-build-env">oe-init-build-env</a>. | ||
| 1605 | </p></div><div class="section" title="5.1.3. documentation"><div class="titlepage"><div><div><h3 class="title"><a id="handbook"></a>5.1.3. <code class="filename">documentation</code></h3></div></div></div><p> | ||
| 1606 | This directory holds the source for the Yocto Project documentation | ||
| 1607 | as well as templates and tools that allow you to generate PDF and HTML | ||
| 1608 | versions of the manuals. | ||
| 1609 | Each manual is contained in a sub-folder. | ||
| 1610 | For example, the files for this manual reside in | ||
| 1611 | <code class="filename">ref-manual</code>. | ||
| 1612 | </p></div><div class="section" title="5.1.4. meta/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-core-meta"></a>5.1.4. <code class="filename">meta/</code></h3></div></div></div><p> | ||
| 1613 | This directory contains the OpenEmbedded Core metadata. | ||
| 1614 | The directory holds recipes, common classes, and machine | ||
| 1615 | configuration for emulated targets (qemux86, qemuarm, | ||
| 1616 | and so on.) | ||
| 1617 | </p></div><div class="section" title="5.1.5. meta-yocto/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-core-meta-yocto"></a>5.1.5. <code class="filename">meta-yocto/</code></h3></div></div></div><p> | ||
| 1618 | This directory contains the configuration for the Poky | ||
| 1619 | reference distribution. | ||
| 1620 | </p></div><div class="section" title="5.1.6. meta-yocto-bsp/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-core-meta-yocto-bsp"></a>5.1.6. <code class="filename">meta-yocto-bsp/</code></h3></div></div></div><p> | ||
| 1621 | This directory contains the Yocto Project reference | ||
| 1622 | hardware BSPs. | ||
| 1623 | </p></div><div class="section" title="5.1.7. meta-hob/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-hob"></a>5.1.7. <code class="filename">meta-hob/</code></h3></div></div></div><p> | ||
| 1624 | This directory contains template recipes used by the | ||
| 1625 | <a class="ulink" href="http://www.yoctoproject.org/projects/hob" target="_top">Hob</a> | ||
| 1626 | build UI. | ||
| 1627 | </p></div><div class="section" title="5.1.8. meta-skeleton/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-skeleton"></a>5.1.8. <code class="filename">meta-skeleton/</code></h3></div></div></div><p> | ||
| 1628 | This directory contains template recipes for BSP and kernel development. | ||
| 1629 | </p></div><div class="section" title="5.1.9. scripts/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-core-scripts"></a>5.1.9. <code class="filename">scripts/</code></h3></div></div></div><p> | ||
| 1630 | This directory contains various integration scripts that implement | ||
| 1631 | extra functionality in the Yocto Project environment (e.g. QEMU scripts). | ||
| 1632 | The <a class="link" href="#structure-core-script" title="5.1.10. oe-init-build-env">oe-init-build-env</a> script appends this | ||
| 1633 | directory to the shell's <code class="filename">PATH</code> environment variable. | ||
| 1634 | </p><p> | ||
| 1635 | The <code class="filename">scripts</code> directory has useful scripts that assist contributing | ||
| 1636 | back to the Yocto Project, such as <code class="filename">create_pull_request</code> and | ||
| 1637 | <code class="filename">send_pull_request</code>. | ||
| 1638 | </p></div><div class="section" title="5.1.10. oe-init-build-env"><div class="titlepage"><div><div><h3 class="title"><a id="structure-core-script"></a>5.1.10. <code class="filename">oe-init-build-env</code></h3></div></div></div><p> | ||
| 1639 | This script sets up the OpenEmbedded build environment. | ||
| 1640 | Running this script with the <code class="filename">source</code> command in | ||
| 1641 | a shell makes changes to <code class="filename">PATH</code> and sets other core BitBake variables based on the | ||
| 1642 | current working directory. | ||
| 1643 | You need to run this script before running BitBake commands. | ||
| 1644 | The script uses other scripts within the <code class="filename">scripts</code> directory to do | ||
| 1645 | the bulk of the work. | ||
| 1646 | </p><p> | ||
| 1647 | By default, running this script without a Build Directory argument creates the | ||
| 1648 | <code class="filename">build</code> directory. | ||
| 1649 | If you provide a Build Directory argument when you <code class="filename">source</code> | ||
| 1650 | the script, you direct OpenEmbedded build system to create a | ||
| 1651 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a> of your choice. | ||
| 1652 | For example, the following command creates a Build Directory named | ||
| 1653 | <code class="filename">mybuilds</code> that is outside of the | ||
| 1654 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>: | ||
| 1655 | </p><pre class="literallayout"> | ||
| 1656 | $ source oe-init-build-env ~/mybuilds | ||
| 1657 | </pre><p> | ||
| 1658 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 1659 | The OpenEmbedded build system does not support file or directory names that | ||
| 1660 | contain spaces. | ||
| 1661 | If you attempt to run the <code class="filename">oe-init-build-env</code> script | ||
| 1662 | from a Source Directory that contains spaces in either the filenames | ||
| 1663 | or directory names, the script returns an error indicating no such | ||
| 1664 | file or directory. | ||
| 1665 | Be sure to use a Source Directory free of names containing spaces. | ||
| 1666 | </div><p> | ||
| 1667 | </p></div><div class="section" title="5.1.11. LICENSE, README, and README.hardware"><div class="titlepage"><div><div><h3 class="title"><a id="structure-basic-top-level"></a>5.1.11. <code class="filename">LICENSE, README, and README.hardware</code></h3></div></div></div><p> | ||
| 1668 | These files are standard top-level files. | ||
| 1669 | </p></div></div><div class="section" title="5.2. The Build Directory - build/"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="structure-build"></a>5.2. The Build Directory - <code class="filename">build/</code></h2></div></div></div><div class="section" title="5.2.1. build/pseudodone"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-pseudodone"></a>5.2.1. <code class="filename">build/pseudodone</code></h3></div></div></div><p> | ||
| 1670 | This tag file indicates that the initial pseudo binary was created. | ||
| 1671 | The file is built the first time BitBake is invoked. | ||
| 1672 | </p></div><div class="section" title="5.2.2. build/conf/local.conf"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-conf-local.conf"></a>5.2.2. <code class="filename">build/conf/local.conf</code></h3></div></div></div><p> | ||
| 1673 | This file contains all the local user configuration for your build environment. | ||
| 1674 | If there is no <code class="filename">local.conf</code> present, it is created from | ||
| 1675 | <code class="filename">local.conf.sample</code>. | ||
| 1676 | The <code class="filename">local.conf</code> file contains documentation on the various configuration options. | ||
| 1677 | Any variable set here overrides any variable set elsewhere within the environment unless | ||
| 1678 | that variable is hard-coded within a file (e.g. by using '=' instead of '?='). | ||
| 1679 | Some variables are hard-coded for various reasons but these variables are | ||
| 1680 | relatively rare. | ||
| 1681 | </p><p> | ||
| 1682 | Edit this file to set the <code class="filename"><a class="link" href="#var-MACHINE" title="MACHINE">MACHINE</a></code> | ||
| 1683 | for which you want to build, which package types you wish to use | ||
| 1684 | (<a class="link" href="#var-PACKAGE_CLASSES" title="PACKAGE_CLASSES"><code class="filename">PACKAGE_CLASSES</code></a>), | ||
| 1685 | where you want to downloaded files | ||
| 1686 | (<code class="filename"><a class="link" href="#var-DL_DIR" title="DL_DIR">DL_DIR</a></code>), | ||
| 1687 | and how you want your host machine to use resources | ||
| 1688 | (<a class="link" href="#var-BB_NUMBER_THREADS" title="BB_NUMBER_THREADS"><code class="filename">BB_NUMBER_THREADS</code></a> and | ||
| 1689 | <a class="link" href="#var-PARALLEL_MAKE" title="PARALLEL_MAKE"><code class="filename">PARALLEL_MAKE</code></a>). | ||
| 1690 | </p></div><div class="section" title="5.2.3. build/conf/bblayers.conf"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-conf-bblayers.conf"></a>5.2.3. <code class="filename">build/conf/bblayers.conf</code></h3></div></div></div><p> | ||
| 1691 | This file defines layers, which are directory trees, traversed (or walked) by BitBake. | ||
| 1692 | If <code class="filename">bblayers.conf</code> | ||
| 1693 | is not present, it is created from <code class="filename">bblayers.conf.sample</code> when | ||
| 1694 | you <code class="filename">source</code> the environment setup script. | ||
| 1695 | </p><p> | ||
| 1696 | The <code class="filename">bblayers.conf</code> file uses the | ||
| 1697 | <a class="link" href="#var-BBLAYERS" title="BBLAYERS"><code class="filename">BBLAYERS</code></a> variable to | ||
| 1698 | list the layers BitBake tries to find. | ||
| 1699 | The file uses the | ||
| 1700 | <a class="link" href="#var-BBLAYERS_NON_REMOVABLE" title="BBLAYERS_NON_REMOVABLE"><code class="filename">BBLAYERS_NON_REMOVABLE</code></a> | ||
| 1701 | variable to list layers that must not be removed. | ||
| 1702 | </p></div><div class="section" title="5.2.4. build/conf/sanity_info"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-conf-sanity_info"></a>5.2.4. <code class="filename">build/conf/sanity_info</code></h3></div></div></div><p> | ||
| 1703 | This file is created during the build to indicate the state of the sanity checks. | ||
| 1704 | </p></div><div class="section" title="5.2.5. build/downloads/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-downloads"></a>5.2.5. <code class="filename">build/downloads/</code></h3></div></div></div><p> | ||
| 1705 | This directory is used for the upstream source tarballs. | ||
| 1706 | The directory can be reused by multiple builds or moved to another location. | ||
| 1707 | You can control the location of this directory through the | ||
| 1708 | <code class="filename"><a class="link" href="#var-DL_DIR" title="DL_DIR">DL_DIR</a></code> variable. | ||
| 1709 | </p></div><div class="section" title="5.2.6. build/sstate-cache/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-sstate-cache"></a>5.2.6. <code class="filename">build/sstate-cache/</code></h3></div></div></div><p> | ||
| 1710 | This directory is used for the shared state cache. | ||
| 1711 | The directory can be reused by multiple builds or moved to another location. | ||
| 1712 | You can control the location of this directory through the | ||
| 1713 | <code class="filename"><a class="link" href="#var-SSTATE_DIR" title="SSTATE_DIR">SSTATE_DIR</a></code> variable. | ||
| 1714 | </p></div><div class="section" title="5.2.7. build/tmp/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp"></a>5.2.7. <code class="filename">build/tmp/</code></h3></div></div></div><p> | ||
| 1715 | This directory receives all the OpenEmbedded build system's output. | ||
| 1716 | BitBake creates this directory if it does not exist. | ||
| 1717 | As a last resort, to clean up a build and start it from scratch (other than the downloads), | ||
| 1718 | you can remove everything in the <code class="filename">tmp</code> directory or get rid of the | ||
| 1719 | directory completely. | ||
| 1720 | If you do, you should also completely remove the <code class="filename">build/sstate-cache</code> | ||
| 1721 | directory as well. | ||
| 1722 | </p></div><div class="section" title="5.2.8. build/tmp/buildstats/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp-buildstats"></a>5.2.8. <code class="filename">build/tmp/buildstats/</code></h3></div></div></div><p> | ||
| 1723 | This directory stores the build statistics. | ||
| 1724 | </p></div><div class="section" title="5.2.9. build/tmp/cache/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp-cache"></a>5.2.9. <code class="filename">build/tmp/cache/</code></h3></div></div></div><p> | ||
| 1725 | When BitBake parses the metadata, it creates a cache file of the result that can | ||
| 1726 | be used when subsequently running commands. | ||
| 1727 | These results are stored here on a per-machine basis. | ||
| 1728 | </p></div><div class="section" title="5.2.10. build/tmp/deploy/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp-deploy"></a>5.2.10. <code class="filename">build/tmp/deploy/</code></h3></div></div></div><p> | ||
| 1729 | This directory contains any 'end result' output from the OpenEmbedded build process. | ||
| 1730 | </p></div><div class="section" title="5.2.11. build/tmp/deploy/deb/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp-deploy-deb"></a>5.2.11. <code class="filename">build/tmp/deploy/deb/</code></h3></div></div></div><p> | ||
| 1731 | This directory receives any <code class="filename">.deb</code> packages produced by | ||
| 1732 | the build process. | ||
| 1733 | The packages are sorted into feeds for different architecture types. | ||
| 1734 | </p></div><div class="section" title="5.2.12. build/tmp/deploy/rpm/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp-deploy-rpm"></a>5.2.12. <code class="filename">build/tmp/deploy/rpm/</code></h3></div></div></div><p> | ||
| 1735 | This directory receives any <code class="filename">.rpm</code> packages produced by | ||
| 1736 | the build process. | ||
| 1737 | The packages are sorted into feeds for different architecture types. | ||
| 1738 | </p></div><div class="section" title="5.2.13. build/tmp/deploy/licenses/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp-deploy-licenses"></a>5.2.13. <code class="filename">build/tmp/deploy/licenses/</code></h3></div></div></div><p> | ||
| 1739 | This directory receives package licensing information. | ||
| 1740 | For example, the directory contains sub-directories for <code class="filename">bash</code>, | ||
| 1741 | <code class="filename">busybox</code>, and <code class="filename">eglibc</code> (among others) that in turn | ||
| 1742 | contain appropriate <code class="filename">COPYING</code> license files with other licensing information. | ||
| 1743 | </p></div><div class="section" title="5.2.14. build/tmp/deploy/images/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp-deploy-images"></a>5.2.14. <code class="filename">build/tmp/deploy/images/</code></h3></div></div></div><p> | ||
| 1744 | This directory receives complete filesystem images. | ||
| 1745 | If you want to flash the resulting image from a build onto a device, look here for the image. | ||
| 1746 | </p><p> | ||
| 1747 | Be careful when deleting files in this directory. | ||
| 1748 | You can safely delete old images from this directory (e.g. | ||
| 1749 | <code class="filename">core-image-*</code>, <code class="filename">hob-image-*</code>, | ||
| 1750 | etc.). | ||
| 1751 | However, the kernel (<code class="filename">*zImage*</code>, <code class="filename">*uImage*</code>, etc.), | ||
| 1752 | bootloader and other supplementary files might be deployed here prior to building an | ||
| 1753 | image. | ||
| 1754 | Because these files, however, are not directly produced from the image, if you | ||
| 1755 | delete them they will not be automatically re-created when you build the image again. | ||
| 1756 | </p><p> | ||
| 1757 | If you do accidentally delete files here, you will need to force them to be | ||
| 1758 | re-created. | ||
| 1759 | In order to do that, you will need to know the target that produced them. | ||
| 1760 | For example, these commands rebuild and re-create the kernel files: | ||
| 1761 | </p><pre class="literallayout"> | ||
| 1762 | $ bitbake -c clean virtual/kernel | ||
| 1763 | $ bitbake virtual/kernel | ||
| 1764 | </pre><p> | ||
| 1765 | </p></div><div class="section" title="5.2.15. build/tmp/deploy/ipk/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp-deploy-ipk"></a>5.2.15. <code class="filename">build/tmp/deploy/ipk/</code></h3></div></div></div><p> | ||
| 1766 | This directory receives <code class="filename">.ipk</code> packages produced by | ||
| 1767 | the build process.</p></div><div class="section" title="5.2.16. build/tmp/sysroots/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp-sysroots"></a>5.2.16. <code class="filename">build/tmp/sysroots/</code></h3></div></div></div><p> | ||
| 1768 | This directory contains shared header files and libraries as well as other shared | ||
| 1769 | data. | ||
| 1770 | Packages that need to share output with other packages do so within this directory. | ||
| 1771 | The directory is subdivided by architecture so multiple builds can run within | ||
| 1772 | the one Build Directory. | ||
| 1773 | </p></div><div class="section" title="5.2.17. build/tmp/stamps/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp-stamps"></a>5.2.17. <code class="filename">build/tmp/stamps/</code></h3></div></div></div><p> | ||
| 1774 | This directory holds information that BitBake uses for accounting purposes | ||
| 1775 | to track what tasks have run and when they have run. | ||
| 1776 | The directory is sub-divided by architecture, package name, and | ||
| 1777 | version. | ||
| 1778 | Following is an example: | ||
| 1779 | </p><pre class="literallayout"> | ||
| 1780 | stamps/all-poky-linux/distcc-config/1.0-r0.do_build-2fdd....2do | ||
| 1781 | </pre><p> | ||
| 1782 | Although the files in the directory are empty of data, | ||
| 1783 | BitBake uses the filenames and timestamps for tracking purposes. | ||
| 1784 | </p></div><div class="section" title="5.2.18. build/tmp/log/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp-log"></a>5.2.18. <code class="filename">build/tmp/log/</code></h3></div></div></div><p> | ||
| 1785 | This directory contains general logs that are not otherwise placed using the | ||
| 1786 | package's <code class="filename"><a class="link" href="#var-WORKDIR" title="WORKDIR">WORKDIR</a></code>. | ||
| 1787 | Examples of logs are the output from the <code class="filename">check_pkg</code> or | ||
| 1788 | <code class="filename">distro_check</code> tasks. | ||
| 1789 | Running a build does not necessarily mean this directory is created. | ||
| 1790 | </p></div><div class="section" title="5.2.19. build/tmp/pkgdata/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp-pkgdata"></a>5.2.19. <code class="filename">build/tmp/pkgdata/</code></h3></div></div></div><p> | ||
| 1791 | This directory contains intermediate packaging data that is used later in the packaging process. | ||
| 1792 | For more information, see the "<a class="link" href="#ref-classes-package" title="7.13. Packaging - package*.bbclass">Packaging - package*.bbclass</a>" section. | ||
| 1793 | </p></div><div class="section" title="5.2.20. build/tmp/work/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-build-tmp-work"></a>5.2.20. <code class="filename">build/tmp/work/</code></h3></div></div></div><p> | ||
| 1794 | This directory contains architecture-specific work sub-directories | ||
| 1795 | for packages built by BitBake. | ||
| 1796 | All tasks execute from the appropriate work directory. | ||
| 1797 | For example, the source for a particular package is unpacked, | ||
| 1798 | patched, configured and compiled all within its own work directory. | ||
| 1799 | Within the work directory, organization is based on the package group | ||
| 1800 | and version for which the source is being compiled | ||
| 1801 | as defined by the | ||
| 1802 | <a class="link" href="#var-WORKDIR" title="WORKDIR"><code class="filename">WORKDIR</code></a>. | ||
| 1803 | </p><p> | ||
| 1804 | It is worth considering the structure of a typical work directory. | ||
| 1805 | As an example, consider the <code class="filename">linux-yocto-kernel-3.0</code> | ||
| 1806 | on the machine <code class="filename">qemux86</code> | ||
| 1807 | built within the Yocto Project. | ||
| 1808 | For this package, a work directory of | ||
| 1809 | <code class="filename">tmp/work/qemux86-poky-linux/linux-yocto/3.0+git1+<.....></code>, | ||
| 1810 | referred to as the | ||
| 1811 | <code class="filename"><a class="link" href="#var-WORKDIR" title="WORKDIR">WORKDIR</a></code>, is created. | ||
| 1812 | Within this directory, the source is unpacked to | ||
| 1813 | <code class="filename">linux-qemux86-standard-build</code> and then patched by Quilt | ||
| 1814 | (see the | ||
| 1815 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#using-a-quilt-workflow" target="_top">Modifying Package | ||
| 1816 | Source Code with Quilt</a>" section in the Yocto Project Development Manual. | ||
| 1817 | Within the <code class="filename">linux-qemux86-standard-build</code> directory, | ||
| 1818 | standard Quilt directories <code class="filename">linux-3.0/patches</code> | ||
| 1819 | and <code class="filename">linux-3.0/.pc</code> are created, | ||
| 1820 | and standard Quilt commands can be used. | ||
| 1821 | </p><p> | ||
| 1822 | There are other directories generated within <code class="filename">WORKDIR</code>. | ||
| 1823 | The most important directory is <code class="filename">WORKDIR/temp/</code>, | ||
| 1824 | which has log files for each task (<code class="filename">log.do_*.pid</code>) | ||
| 1825 | and contains the scripts BitBake runs for each task | ||
| 1826 | (<code class="filename">run.do_*.pid</code>). | ||
| 1827 | The <code class="filename">WORKDIR/image/</code> directory is where "make | ||
| 1828 | install" places its output that is then split into sub-packages | ||
| 1829 | within <code class="filename">WORKDIR/packages-split/</code>. | ||
| 1830 | </p></div></div><div class="section" title="5.3. The Metadata - meta/"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="structure-meta"></a>5.3. The Metadata - <code class="filename">meta/</code></h2></div></div></div><p> | ||
| 1831 | As mentioned previously, metadata is the core of the Yocto Project. | ||
| 1832 | Metadata has several important subdivisions: | ||
| 1833 | </p><div class="section" title="5.3.1. meta/classes/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-classes"></a>5.3.1. <code class="filename">meta/classes/</code></h3></div></div></div><p> | ||
| 1834 | This directory contains the <code class="filename">*.bbclass</code> files. | ||
| 1835 | Class files are used to abstract common code so it can be reused by multiple | ||
| 1836 | packages. | ||
| 1837 | Every package inherits the <code class="filename">base.bbclass</code> file. | ||
| 1838 | Examples of other important classes are <code class="filename">autotools.bbclass</code>, which | ||
| 1839 | in theory allows any Autotool-enabled package to work with the Yocto Project with minimal effort. | ||
| 1840 | Another example is <code class="filename">kernel.bbclass</code> that contains common code and functions | ||
| 1841 | for working with the Linux kernel. | ||
| 1842 | Functions like image generation or packaging also have their specific class files | ||
| 1843 | such as <code class="filename">image.bbclass</code>, <code class="filename">rootfs_*.bbclass</code> and | ||
| 1844 | <code class="filename">package*.bbclass</code>. | ||
| 1845 | </p></div><div class="section" title="5.3.2. meta/conf/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-conf"></a>5.3.2. <code class="filename">meta/conf/</code></h3></div></div></div><p> | ||
| 1846 | This directory contains the core set of configuration files that start from | ||
| 1847 | <code class="filename">bitbake.conf</code> and from which all other configuration | ||
| 1848 | files are included. | ||
| 1849 | See the include statements at the end of the file and you will note that even | ||
| 1850 | <code class="filename">local.conf</code> is loaded from there. | ||
| 1851 | While <code class="filename">bitbake.conf</code> sets up the defaults, you can often override | ||
| 1852 | these by using the (<code class="filename">local.conf</code>) file, machine file or | ||
| 1853 | the distribution configuration file. | ||
| 1854 | </p></div><div class="section" title="5.3.3. meta/conf/machine/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-conf-machine"></a>5.3.3. <code class="filename">meta/conf/machine/</code></h3></div></div></div><p> | ||
| 1855 | This directory contains all the machine configuration files. | ||
| 1856 | If you set <code class="filename">MACHINE="qemux86"</code>, | ||
| 1857 | the OpenEmbedded build system looks for a <code class="filename">qemux86.conf</code> file in this | ||
| 1858 | directory. | ||
| 1859 | The <code class="filename">include</code> directory contains various data common to multiple machines. | ||
| 1860 | If you want to add support for a new machine to the Yocto Project, look in this directory. | ||
| 1861 | </p></div><div class="section" title="5.3.4. meta/conf/distro/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-conf-distro"></a>5.3.4. <code class="filename">meta/conf/distro/</code></h3></div></div></div><p> | ||
| 1862 | Any distribution-specific configuration is controlled from this directory. | ||
| 1863 | For the Yocto Project, the <code class="filename">defaultsetup.conf</code> is the main file here. | ||
| 1864 | This directory includes the versions and the | ||
| 1865 | <code class="filename">SRCDATE</code> definitions for applications that are configured here. | ||
| 1866 | An example of an alternative configuration might be <code class="filename">poky-bleeding.conf</code>. | ||
| 1867 | Although this file mainly inherits its configuration from Poky. | ||
| 1868 | </p></div><div class="section" title="5.3.5. meta/recipes-bsp/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-bsp"></a>5.3.5. <code class="filename">meta/recipes-bsp/</code></h3></div></div></div><p> | ||
| 1869 | This directory contains anything linking to specific hardware or hardware | ||
| 1870 | configuration information such as "u-boot" and "grub". | ||
| 1871 | </p></div><div class="section" title="5.3.6. meta/recipes-connectivity/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-connectivity"></a>5.3.6. <code class="filename">meta/recipes-connectivity/</code></h3></div></div></div><p> | ||
| 1872 | This directory contains libraries and applications related to communication with other devices. | ||
| 1873 | </p></div><div class="section" title="5.3.7. meta/recipes-core/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-core"></a>5.3.7. <code class="filename">meta/recipes-core/</code></h3></div></div></div><p> | ||
| 1874 | This directory contains what is needed to build a basic working Linux image | ||
| 1875 | including commonly used dependencies. | ||
| 1876 | </p></div><div class="section" title="5.3.8. meta/recipes-devtools/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-devtools"></a>5.3.8. <code class="filename">meta/recipes-devtools/</code></h3></div></div></div><p> | ||
| 1877 | This directory contains tools that are primarily used by the build system. | ||
| 1878 | The tools, however, can also be used on targets. | ||
| 1879 | </p></div><div class="section" title="5.3.9. meta/recipes-extended/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-extended"></a>5.3.9. <code class="filename">meta/recipes-extended/</code></h3></div></div></div><p> | ||
| 1880 | This directory contains non-essential applications that add features compared to the | ||
| 1881 | alternatives in core. | ||
| 1882 | You might need this directory for full tool functionality or for Linux Standard Base (LSB) | ||
| 1883 | compliance. | ||
| 1884 | </p></div><div class="section" title="5.3.10. meta/recipes-gnome/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-gnome"></a>5.3.10. <code class="filename">meta/recipes-gnome/</code></h3></div></div></div><p> | ||
| 1885 | This directory contains all things related to the GTK+ application framework. | ||
| 1886 | </p></div><div class="section" title="5.3.11. meta/recipes-graphics/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-graphics"></a>5.3.11. <code class="filename">meta/recipes-graphics/</code></h3></div></div></div><p> | ||
| 1887 | This directory contains X and other graphically related system libraries | ||
| 1888 | </p></div><div class="section" title="5.3.12. meta/recipes-kernel/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-kernel"></a>5.3.12. <code class="filename">meta/recipes-kernel/</code></h3></div></div></div><p> | ||
| 1889 | This directory contains the kernel and generic applications and libraries that | ||
| 1890 | have strong kernel dependencies. | ||
| 1891 | </p></div><div class="section" title="5.3.13. meta/recipes-multimedia/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-multimedia"></a>5.3.13. <code class="filename">meta/recipes-multimedia/</code></h3></div></div></div><p> | ||
| 1892 | This directory contains codecs and support utilities for audio, images and video. | ||
| 1893 | </p></div><div class="section" title="5.3.14. meta/recipes-qt/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-qt"></a>5.3.14. <code class="filename">meta/recipes-qt/</code></h3></div></div></div><p> | ||
| 1894 | This directory contains all things related to the Qt application framework. | ||
| 1895 | </p></div><div class="section" title="5.3.15. meta/recipes-rt/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-rt"></a>5.3.15. <code class="filename">meta/recipes-rt/</code></h3></div></div></div><p> | ||
| 1896 | This directory contains package and image recipes for using and testing | ||
| 1897 | the <code class="filename">PREEMPT_RT</code> kernel. | ||
| 1898 | </p></div><div class="section" title="5.3.16. meta/recipes-sato/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-sato"></a>5.3.16. <code class="filename">meta/recipes-sato/</code></h3></div></div></div><p> | ||
| 1899 | This directory contains the Sato demo/reference UI/UX and its associated applications | ||
| 1900 | and configuration data. | ||
| 1901 | </p></div><div class="section" title="5.3.17. meta/recipes-support/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-support"></a>5.3.17. <code class="filename">meta/recipes-support/</code></h3></div></div></div><p> | ||
| 1902 | This directory contains recipes that used by other recipes, but that are not directly | ||
| 1903 | included in images (i.e. dependencies of other recipes). | ||
| 1904 | </p></div><div class="section" title="5.3.18. meta/site/"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-site"></a>5.3.18. <code class="filename">meta/site/</code></h3></div></div></div><p> | ||
| 1905 | This directory contains a list of cached results for various architectures. | ||
| 1906 | Because certain "autoconf" test results cannot be determined when cross-compiling due to | ||
| 1907 | the tests not able to run on a live system, the information in this directory is | ||
| 1908 | passed to "autoconf" for the various architectures. | ||
| 1909 | </p></div><div class="section" title="5.3.19. meta/recipes.txt"><div class="titlepage"><div><div><h3 class="title"><a id="structure-meta-recipes-txt"></a>5.3.19. <code class="filename">meta/recipes.txt</code></h3></div></div></div><p> | ||
| 1910 | This file is a description of the contents of <code class="filename">recipes-*</code>. | ||
| 1911 | </p></div></div></div> | ||
| 1912 | |||
| 1913 | <div class="chapter" title="Chapter 6. BitBake"><div class="titlepage"><div><div><h2 class="title"><a id="ref-bitbake"></a>Chapter 6. BitBake</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="section"><a href="#ref-bitbake-parsing">6.1. Parsing</a></span></dt><dt><span class="section"><a href="#ref-bitbake-providers">6.2. Preferences and Providers</a></span></dt><dt><span class="section"><a href="#ref-bitbake-dependencies">6.3. Dependencies</a></span></dt><dt><span class="section"><a href="#ref-bitbake-tasklist">6.4. The Task List</a></span></dt><dt><span class="section"><a href="#ref-bitbake-runtask">6.5. Running a Task</a></span></dt><dt><span class="section"><a href="#ref-bitbake-commandline">6.6. BitBake Command Line</a></span></dt><dt><span class="section"><a href="#ref-bitbake-fetchers">6.7. Fetchers</a></span></dt></dl></div><p> | ||
| 1914 | BitBake is a program written in Python that interprets the metadata used by the OpenEmbedded | ||
| 1915 | build system. | ||
| 1916 | At some point, developers wonder what actually happens when you enter: | ||
| 1917 | </p><pre class="literallayout"> | ||
| 1918 | $ bitbake core-image-sato | ||
| 1919 | </pre><p> | ||
| 1920 | </p><p> | ||
| 1921 | This chapter provides an overview of what happens behind the scenes from BitBake's perspective. | ||
| 1922 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 1923 | BitBake strives to be a generic "task" executor that is capable of handling complex dependency relationships. | ||
| 1924 | As such, it has no real knowledge of what the tasks being executed actually do. | ||
| 1925 | BitBake just considers a list of tasks with dependencies and handles metadata | ||
| 1926 | that consists of variables in a certain format that get passed to the tasks. | ||
| 1927 | </div><div class="section" title="6.1. Parsing"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-bitbake-parsing"></a>6.1. Parsing</h2></div></div></div><p> | ||
| 1928 | BitBake parses configuration files, classes, and <code class="filename">.bb</code> files. | ||
| 1929 | </p><p> | ||
| 1930 | The first thing BitBake does is look for the <code class="filename">bitbake.conf</code> file. | ||
| 1931 | This file resides in the | ||
| 1932 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a> | ||
| 1933 | within the <code class="filename">meta/conf/</code> directory. | ||
| 1934 | BitBake finds it by examining its | ||
| 1935 | <a class="link" href="#var-BBPATH" title="BBPATH"><code class="filename">BBPATH</code></a> environment | ||
| 1936 | variable and looking for the <code class="filename">meta/conf/</code> | ||
| 1937 | directory. | ||
| 1938 | </p><p> | ||
| 1939 | The <code class="filename">bitbake.conf</code> file lists other configuration | ||
| 1940 | files to include from a <code class="filename">conf/</code> | ||
| 1941 | directory below the directories listed in <code class="filename">BBPATH</code>. | ||
| 1942 | In general, the most important configuration file from a user's perspective | ||
| 1943 | is <code class="filename">local.conf</code>, which contains a user's customized | ||
| 1944 | settings for the OpenEmbedded build environment. | ||
| 1945 | Other notable configuration files are the distribution | ||
| 1946 | configuration file (set by the | ||
| 1947 | <code class="filename"><a class="link" href="#var-DISTRO" title="DISTRO">DISTRO</a></code> variable) | ||
| 1948 | and the machine configuration file | ||
| 1949 | (set by the | ||
| 1950 | <code class="filename"><a class="link" href="#var-MACHINE" title="MACHINE">MACHINE</a></code> variable). | ||
| 1951 | The <code class="filename">DISTRO</code> and <code class="filename">MACHINE</code> BitBake environment | ||
| 1952 | variables are both usually set in | ||
| 1953 | the <code class="filename">local.conf</code> file. | ||
| 1954 | Valid distribution | ||
| 1955 | configuration files are available in the <code class="filename">meta/conf/distro/</code> directory | ||
| 1956 | and valid machine configuration | ||
| 1957 | files in the <code class="filename">meta/conf/machine/</code> directory. | ||
| 1958 | Within the <code class="filename">meta/conf/machine/include/</code> | ||
| 1959 | directory are various <code class="filename">tune-*.inc</code> configuration files that provide common | ||
| 1960 | "tuning" settings specific to and shared between particular architectures and machines. | ||
| 1961 | </p><p> | ||
| 1962 | After the parsing of the configuration files, some standard classes are included. | ||
| 1963 | The <code class="filename">base.bbclass</code> file is always included. | ||
| 1964 | Other classes that are specified in the configuration using the | ||
| 1965 | <code class="filename"><a class="link" href="#var-INHERIT" title="INHERIT">INHERIT</a></code> | ||
| 1966 | variable are also included. | ||
| 1967 | Class files are searched for in a <code class="filename">classes</code> subdirectory | ||
| 1968 | under the paths in <code class="filename">BBPATH</code> in the same way as | ||
| 1969 | configuration files. | ||
| 1970 | </p><p> | ||
| 1971 | After classes are included, the variable | ||
| 1972 | <code class="filename"><a class="link" href="#var-BBFILES" title="BBFILES">BBFILES</a></code> | ||
| 1973 | is set, usually in | ||
| 1974 | <code class="filename">local.conf</code>, and defines the list of places to search for | ||
| 1975 | <code class="filename">.bb</code> files. | ||
| 1976 | By default, the <code class="filename">BBFILES</code> variable specifies the | ||
| 1977 | <code class="filename">meta/recipes-*/</code> directory within Poky. | ||
| 1978 | Adding extra content to <code class="filename">BBFILES</code> is best achieved through the use of | ||
| 1979 | BitBake layers as described in the | ||
| 1980 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#understanding-and-creating-layers" target="_top">Understanding and | ||
| 1981 | Creating Layers</a>" section of the Yocto Project Development Manual. | ||
| 1982 | </p><p> | ||
| 1983 | BitBake parses each <code class="filename">.bb</code> file in <code class="filename">BBFILES</code> and | ||
| 1984 | stores the values of various variables. | ||
| 1985 | In summary, for each <code class="filename">.bb</code> | ||
| 1986 | file the configuration plus the base class of variables are set, followed | ||
| 1987 | by the data in the <code class="filename">.bb</code> file | ||
| 1988 | itself, followed by any inherit commands that | ||
| 1989 | <code class="filename">.bb</code> file might contain. | ||
| 1990 | </p><p> | ||
| 1991 | Because parsing <code class="filename">.bb</code> files is a time | ||
| 1992 | consuming process, a cache is kept to speed up subsequent parsing. | ||
| 1993 | This cache is invalid if the timestamp of the <code class="filename">.bb</code> | ||
| 1994 | file itself changes, or if the timestamps of any of the include, | ||
| 1995 | configuration or class files the <code class="filename">.bb</code> | ||
| 1996 | file depends on changes. | ||
| 1997 | </p></div><div class="section" title="6.2. Preferences and Providers"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-bitbake-providers"></a>6.2. Preferences and Providers</h2></div></div></div><p> | ||
| 1998 | Once all the <code class="filename">.bb</code> files have been | ||
| 1999 | parsed, BitBake starts to build the target (<code class="filename">core-image-sato</code> | ||
| 2000 | in the previous section's example) and looks for providers of that target. | ||
| 2001 | Once a provider is selected, BitBake resolves all the dependencies for | ||
| 2002 | the target. | ||
| 2003 | In the case of <code class="filename">core-image-sato</code>, it would lead to | ||
| 2004 | <code class="filename">packagegroup-core-x11-sato</code>, | ||
| 2005 | which in turn leads to recipes like <code class="filename">matchbox-terminal</code>, | ||
| 2006 | <code class="filename">pcmanfm</code> and <code class="filename">gthumb</code>. | ||
| 2007 | These recipes in turn depend on <code class="filename">eglibc</code> and the toolchain. | ||
| 2008 | </p><p> | ||
| 2009 | Sometimes a target might have multiple providers. | ||
| 2010 | A common example is "virtual/kernel", which is provided by each kernel package. | ||
| 2011 | Each machine often selects the best kernel provider by using a line similar to the | ||
| 2012 | following in the machine configuration file: | ||
| 2013 | </p><pre class="literallayout"> | ||
| 2014 | PREFERRED_PROVIDER_virtual/kernel = "linux-yocto" | ||
| 2015 | </pre><p> | ||
| 2016 | The default <code class="filename"><a class="link" href="#var-PREFERRED_PROVIDER" title="PREFERRED_PROVIDER">PREFERRED_PROVIDER</a></code> | ||
| 2017 | is the provider with the same name as the target. | ||
| 2018 | </p><p> | ||
| 2019 | Understanding how providers are chosen is made complicated by the fact | ||
| 2020 | that multiple versions might exist. | ||
| 2021 | BitBake defaults to the highest version of a provider. | ||
| 2022 | Version comparisons are made using the same method as Debian. | ||
| 2023 | You can use the | ||
| 2024 | <code class="filename"><a class="link" href="#var-PREFERRED_VERSION" title="PREFERRED_VERSION">PREFERRED_VERSION</a></code> | ||
| 2025 | variable to specify a particular version (usually in the distro configuration). | ||
| 2026 | You can influence the order by using the | ||
| 2027 | <code class="filename"><a class="link" href="#var-DEFAULT_PREFERENCE" title="DEFAULT_PREFERENCE">DEFAULT_PREFERENCE</a></code> | ||
| 2028 | variable. | ||
| 2029 | By default, files have a preference of "0". | ||
| 2030 | Setting the <code class="filename">DEFAULT_PREFERENCE</code> to "-1" makes the | ||
| 2031 | package unlikely to be used unless it is explicitly referenced. | ||
| 2032 | Setting the <code class="filename">DEFAULT_PREFERENCE</code> to "1" makes it likely the package is used. | ||
| 2033 | <code class="filename">PREFERRED_VERSION</code> overrides any <code class="filename">DEFAULT_PREFERENCE</code> setting. | ||
| 2034 | <code class="filename">DEFAULT_PREFERENCE</code> is often used to mark newer and more experimental package | ||
| 2035 | versions until they have undergone sufficient testing to be considered stable. | ||
| 2036 | </p><p> | ||
| 2037 | In summary, BitBake has created a list of providers, which is prioritized, for each target. | ||
| 2038 | </p></div><div class="section" title="6.3. Dependencies"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-bitbake-dependencies"></a>6.3. Dependencies</h2></div></div></div><p> | ||
| 2039 | Each target BitBake builds consists of multiple tasks such as | ||
| 2040 | <code class="filename">fetch</code>, <code class="filename">unpack</code>, | ||
| 2041 | <code class="filename">patch</code>, <code class="filename">configure</code>, | ||
| 2042 | and <code class="filename">compile</code>. | ||
| 2043 | For best performance on multi-core systems, BitBake considers each task as an independent | ||
| 2044 | entity with its own set of dependencies. | ||
| 2045 | </p><p> | ||
| 2046 | Dependencies are defined through several variables. | ||
| 2047 | You can find information about variables BitBake uses in the BitBake documentation, | ||
| 2048 | which is found in the <code class="filename">bitbake/doc/manual</code> directory within the | ||
| 2049 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 2050 | At a basic level, it is sufficient to know that BitBake uses the | ||
| 2051 | <code class="filename"><a class="link" href="#var-DEPENDS" title="DEPENDS">DEPENDS</a></code> and | ||
| 2052 | <code class="filename"><a class="link" href="#var-RDEPENDS" title="RDEPENDS">RDEPENDS</a></code> variables when | ||
| 2053 | calculating dependencies. | ||
| 2054 | </p></div><div class="section" title="6.4. The Task List"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-bitbake-tasklist"></a>6.4. The Task List</h2></div></div></div><p> | ||
| 2055 | Based on the generated list of providers and the dependency information, | ||
| 2056 | BitBake can now calculate exactly what tasks it needs to run and in what | ||
| 2057 | order it needs to run them. | ||
| 2058 | The build now starts with BitBake forking off threads up to the limit set in the | ||
| 2059 | <code class="filename"><a class="link" href="#var-BB_NUMBER_THREADS" title="BB_NUMBER_THREADS">BB_NUMBER_THREADS</a></code> variable. | ||
| 2060 | BitBake continues to fork threads as long as there are tasks ready to run, | ||
| 2061 | those tasks have all their dependencies met, and the thread threshold has not been | ||
| 2062 | exceeded. | ||
| 2063 | </p><p> | ||
| 2064 | It is worth noting that you can greatly speed up the build time by properly setting | ||
| 2065 | the <code class="filename">BB_NUMBER_THREADS</code> variable. | ||
| 2066 | See the | ||
| 2067 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/yocto-project-qs/yocto-project-qs.html#building-image" target="_top">Building an Image</a>" | ||
| 2068 | section in the Yocto Project Quick Start for more information. | ||
| 2069 | </p><p> | ||
| 2070 | As each task completes, a timestamp is written to the directory specified by the | ||
| 2071 | <code class="filename"><a class="link" href="#var-STAMP" title="STAMP">STAMP</a></code> variable. | ||
| 2072 | On subsequent runs, BitBake looks within the <code class="filename">/build/tmp/stamps</code> | ||
| 2073 | directory and does not rerun | ||
| 2074 | tasks that are already completed unless a timestamp is found to be invalid. | ||
| 2075 | Currently, invalid timestamps are only considered on a per | ||
| 2076 | <code class="filename">.bb</code> file basis. | ||
| 2077 | So, for example, if the configure stamp has a timestamp greater than the | ||
| 2078 | compile timestamp for a given target, then the compile task would rerun. | ||
| 2079 | Running the compile task again, however, has no effect on other providers | ||
| 2080 | that depend on that target. | ||
| 2081 | This behavior could change or become configurable in future versions of BitBake. | ||
| 2082 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 2083 | Some tasks are marked as "nostamp" tasks. | ||
| 2084 | No timestamp file is created when these tasks are run. | ||
| 2085 | Consequently, "nostamp" tasks are always rerun. | ||
| 2086 | </div></div><div class="section" title="6.5. Running a Task"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-bitbake-runtask"></a>6.5. Running a Task</h2></div></div></div><p> | ||
| 2087 | Tasks can either be a shell task or a Python task. | ||
| 2088 | For shell tasks, BitBake writes a shell script to | ||
| 2089 | <code class="filename">${WORKDIR}/temp/run.do_taskname.pid</code> and then executes the script. | ||
| 2090 | The generated shell script contains all the exported variables, and the shell functions | ||
| 2091 | with all variables expanded. | ||
| 2092 | Output from the shell script goes to the file <code class="filename">${WORKDIR}/temp/log.do_taskname.pid</code>. | ||
| 2093 | Looking at the expanded shell functions in the run file and the output in the log files | ||
| 2094 | is a useful debugging technique. | ||
| 2095 | </p><p> | ||
| 2096 | For Python tasks, BitBake executes the task internally and logs information to the | ||
| 2097 | controlling terminal. | ||
| 2098 | Future versions of BitBake will write the functions to files similar to the way | ||
| 2099 | shell tasks are handled. | ||
| 2100 | Logging will be handled in way similar to shell tasks as well. | ||
| 2101 | </p><p> | ||
| 2102 | Once all the tasks have been completed BitBake exits. | ||
| 2103 | </p><p> | ||
| 2104 | When running a task, BitBake tightly controls the execution environment | ||
| 2105 | of the build tasks to make sure unwanted contamination from the build machine | ||
| 2106 | cannot influence the build. | ||
| 2107 | Consequently, if you do want something to get passed into the build | ||
| 2108 | task's environment, you must take a few steps: | ||
| 2109 | </p><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><p>Tell BitBake to load what you want from the environment | ||
| 2110 | into the data store. | ||
| 2111 | You can do so through the <code class="filename">BB_ENV_EXTRAWHITE</code> | ||
| 2112 | variable. | ||
| 2113 | For example, assume you want to prevent the build system from | ||
| 2114 | accessing your <code class="filename">$HOME/.ccache</code> directory. | ||
| 2115 | The following command tells BitBake to load | ||
| 2116 | <code class="filename">CCACHE_DIR</code> from the environment into the data | ||
| 2117 | store: | ||
| 2118 | </p><pre class="literallayout"> | ||
| 2119 | export BB_ENV_EXTRAWHITE="$BB_ENV_EXTRAWHITE CCACHE_DIR" | ||
| 2120 | </pre></li><li class="listitem"><p>Tell BitBake to export what you have loaded into the | ||
| 2121 | environment store to the task environment of every running task. | ||
| 2122 | Loading something from the environment into the data store | ||
| 2123 | (previous step) only makes it available in the datastore. | ||
| 2124 | To export it to the task environment of every running task, | ||
| 2125 | use a command similar to the following in your | ||
| 2126 | <code class="filename">local.conf</code> or distro configuration file: | ||
| 2127 | </p><pre class="literallayout"> | ||
| 2128 | export CCACHE_DIR | ||
| 2129 | </pre></li></ol></div><p> | ||
| 2130 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 2131 | A side effect of the previous steps is that BitBake records the variable | ||
| 2132 | as a dependency of the build process in things like the shared state | ||
| 2133 | checksums. | ||
| 2134 | If doing so results in unnecessary rebuilds of tasks, you can whitelist the | ||
| 2135 | variable so that the shared state code ignores the dependency when it creates | ||
| 2136 | checksums. | ||
| 2137 | For information on this process, see the <code class="filename">BB_HASHBASE_WHITELIST</code> | ||
| 2138 | example in the "<a class="link" href="#checksums" title="3.2.2. Checksums (Signatures)">Checksums (Signatures)</a>" section. | ||
| 2139 | </div></div><div class="section" title="6.6. BitBake Command Line"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-bitbake-commandline"></a>6.6. BitBake Command Line</h2></div></div></div><p> | ||
| 2140 | Following is the BitBake help output: | ||
| 2141 | </p><pre class="screen"> | ||
| 2142 | $ bitbake --help | ||
| 2143 | Usage: bitbake [options] [package ...] | ||
| 2144 | |||
| 2145 | Executes the specified task (default is 'build') for a given set of BitBake files. | ||
| 2146 | It expects that BBFILES is defined, which is a space separated list of files to | ||
| 2147 | be executed. BBFILES does support wildcards. | ||
| 2148 | Default BBFILES are the .bb files in the current directory. | ||
| 2149 | |||
| 2150 | Options: | ||
| 2151 | --version show program's version number and exit | ||
| 2152 | -h, --help show this help message and exit | ||
| 2153 | -b BUILDFILE, --buildfile=BUILDFILE | ||
| 2154 | execute the task against this .bb file, rather than a | ||
| 2155 | package from BBFILES. Does not handle any | ||
| 2156 | dependencies. | ||
| 2157 | -k, --continue continue as much as possible after an error. While the | ||
| 2158 | target that failed, and those that depend on it, | ||
| 2159 | cannot be remade, the other dependencies of these | ||
| 2160 | targets can be processed all the same. | ||
| 2161 | -a, --tryaltconfigs continue with builds by trying to use alternative | ||
| 2162 | providers where possible. | ||
| 2163 | -f, --force force run of specified cmd, regardless of stamp status | ||
| 2164 | -c CMD, --cmd=CMD Specify task to execute. Note that this only executes | ||
| 2165 | the specified task for the providee and the packages | ||
| 2166 | it depends on, i.e. 'compile' does not implicitly call | ||
| 2167 | stage for the dependencies (IOW: use only if you know | ||
| 2168 | what you are doing). Depending on the base.bbclass a | ||
| 2169 | listtasks tasks is defined and will show available | ||
| 2170 | tasks | ||
| 2171 | -r PREFILE, --read=PREFILE | ||
| 2172 | read the specified file before bitbake.conf | ||
| 2173 | -R POSTFILE, --postread=POSTFILE | ||
| 2174 | read the specified file after bitbake.conf | ||
| 2175 | -v, --verbose output more chit-chat to the terminal | ||
| 2176 | -D, --debug Increase the debug level. You can specify this more | ||
| 2177 | than once. | ||
| 2178 | -n, --dry-run don't execute, just go through the motions | ||
| 2179 | -S, --dump-signatures | ||
| 2180 | don't execute, just dump out the signature | ||
| 2181 | construction information | ||
| 2182 | -p, --parse-only quit after parsing the BB files (developers only) | ||
| 2183 | -s, --show-versions show current and preferred versions of all packages | ||
| 2184 | -e, --environment show the global or per-package environment (this is | ||
| 2185 | what used to be bbread) | ||
| 2186 | -g, --graphviz emit the dependency trees of the specified packages in | ||
| 2187 | the dot syntax | ||
| 2188 | -I EXTRA_ASSUME_PROVIDED, --ignore-deps=EXTRA_ASSUME_PROVIDED | ||
| 2189 | Assume these dependencies don't exist and are already | ||
| 2190 | provided (equivalent to ASSUME_PROVIDED). Useful to | ||
| 2191 | make dependency graphs more appealing | ||
| 2192 | -l DEBUG_DOMAINS, --log-domains=DEBUG_DOMAINS | ||
| 2193 | Show debug logging for the specified logging domains | ||
| 2194 | -P, --profile profile the command and print a report | ||
| 2195 | -u UI, --ui=UI userinterface to use | ||
| 2196 | -t SERVERTYPE, --servertype=SERVERTYPE | ||
| 2197 | Choose which server to use, none, process or xmlrpc | ||
| 2198 | --revisions-changed Set the exit code depending on whether upstream | ||
| 2199 | floating revisions have changed or not | ||
| 2200 | </pre></div><div class="section" title="6.7. Fetchers"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-bitbake-fetchers"></a>6.7. Fetchers</h2></div></div></div><p> | ||
| 2201 | BitBake also contains a set of "fetcher" modules that allow | ||
| 2202 | retrieval of source code from various types of sources. | ||
| 2203 | For example, BitBake can get source code from a disk with the metadata, from websites, | ||
| 2204 | from remote shell accounts or from Source Code Management (SCM) systems | ||
| 2205 | like <code class="filename">cvs/subversion/git</code>. | ||
| 2206 | </p><p> | ||
| 2207 | Fetchers are usually triggered by entries in | ||
| 2208 | <code class="filename"><a class="link" href="#var-SRC_URI" title="SRC_URI">SRC_URI</a></code>. | ||
| 2209 | You can find information about the options and formats of entries for specific | ||
| 2210 | fetchers in the BitBake manual located in the | ||
| 2211 | <code class="filename">bitbake/doc/manual</code> directory of the | ||
| 2212 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 2213 | </p><p> | ||
| 2214 | One useful feature for certain Source Code Manager (SCM) fetchers is the ability to | ||
| 2215 | "auto-update" when the upstream SCM changes version. | ||
| 2216 | Since this ability requires certain functionality from the SCM, not all | ||
| 2217 | systems support it. | ||
| 2218 | Currently Subversion, Bazaar and to a limited extent, Git support the ability to "auto-update". | ||
| 2219 | This feature works using the <code class="filename"><a class="link" href="#var-SRCREV" title="SRCREV">SRCREV</a></code> | ||
| 2220 | variable. | ||
| 2221 | See the | ||
| 2222 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#platdev-appdev-srcrev" target="_top">Using an External SCM</a>" section | ||
| 2223 | in the Yocto Project Development Manual for more information. | ||
| 2224 | </p></div></div> | ||
| 2225 | |||
| 2226 | <div class="chapter" title="Chapter 7. Classes"><div class="titlepage"><div><div><h2 class="title"><a id="ref-classes"></a>Chapter 7. Classes</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="section"><a href="#ref-classes-base">7.1. The base class - <code class="filename">base.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-autotools">7.2. Autotooled Packages - <code class="filename">autotools.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-update-alternatives">7.3. Alternatives - <code class="filename">update-alternatives.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-update-rc.d">7.4. Initscripts - <code class="filename">update-rc.d.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-binconfig">7.5. Binary config scripts - <code class="filename">binconfig.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-debian">7.6. Debian renaming - <code class="filename">debian.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-pkgconfig">7.7. Pkg-config - <code class="filename">pkgconfig.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-src-distribute">7.8. Distribution of sources - <code class="filename">src_distribute_local.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-perl">7.9. Perl modules - <code class="filename">cpan.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-distutils">7.10. Python extensions - <code class="filename">distutils.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-devshell">7.11. Developer Shell - <code class="filename">devshell.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-packagegroup">7.12. Package Groups - <code class="filename">packagegroup.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-package">7.13. Packaging - <code class="filename">package*.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-kernel">7.14. Building kernels - <code class="filename">kernel.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-image">7.15. Creating images - <code class="filename">image.bbclass</code> and <code class="filename">rootfs*.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-sanity">7.16. Host System sanity checks - <code class="filename">sanity.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-insane">7.17. Generated output quality assurance checks - <code class="filename">insane.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-siteinfo">7.18. Autotools configuration data cache - <code class="filename">siteinfo.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-useradd">7.19. Adding Users - <code class="filename">useradd.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-externalsrc">7.20. Using External Source - <code class="filename">externalsrc.bbclass</code></a></span></dt><dt><span class="section"><a href="#ref-classes-others">7.21. Other Classes</a></span></dt></dl></div><p> | ||
| 2227 | Class files are used to abstract common functionality and share it amongst multiple | ||
| 2228 | <code class="filename">.bb</code> files. | ||
| 2229 | Any metadata usually found in a <code class="filename">.bb</code> file can also be placed in a class | ||
| 2230 | file. | ||
| 2231 | Class files are identified by the extension <code class="filename">.bbclass</code> and are usually placed | ||
| 2232 | in a <code class="filename">classes/</code> directory beneath the | ||
| 2233 | <code class="filename">meta*/</code> directory found in the | ||
| 2234 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 2235 | Class files can also be pointed to by BUILDDIR (e.g. <code class="filename">build/</code>)in the same way as | ||
| 2236 | <code class="filename">.conf</code> files in the <code class="filename">conf</code> directory. | ||
| 2237 | Class files are searched for in <a class="link" href="#var-BBPATH" title="BBPATH"><code class="filename">BBPATH</code></a> | ||
| 2238 | using the same method by which <code class="filename">.conf</code> files are searched. | ||
| 2239 | </p><p> | ||
| 2240 | In most cases inheriting the class is enough to enable its features, although | ||
| 2241 | for some classes you might need to set variables or override some of the | ||
| 2242 | default behaviour. | ||
| 2243 | </p><div class="section" title="7.1. The base class - base.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-base"></a>7.1. The base class - <code class="filename">base.bbclass</code></h2></div></div></div><p> | ||
| 2244 | The base class is special in that every <code class="filename">.bb</code> | ||
| 2245 | file inherits it automatically. | ||
| 2246 | This class contains definitions for standard basic | ||
| 2247 | tasks such as fetching, unpacking, configuring (empty by default), compiling | ||
| 2248 | (runs any <code class="filename">Makefile</code> present), installing (empty by default) and packaging | ||
| 2249 | (empty by default). | ||
| 2250 | These classes are often overridden or extended by other classes | ||
| 2251 | such as <code class="filename">autotools.bbclass</code> or <code class="filename">package.bbclass</code>. | ||
| 2252 | The class also contains some commonly used functions such as <code class="filename">oe_runmake</code>. | ||
| 2253 | </p></div><div class="section" title="7.2. Autotooled Packages - autotools.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-autotools"></a>7.2. Autotooled Packages - <code class="filename">autotools.bbclass</code></h2></div></div></div><p> | ||
| 2254 | Autotools (<code class="filename">autoconf</code>, <code class="filename">automake</code>, | ||
| 2255 | and <code class="filename">libtool</code>) bring standardization. | ||
| 2256 | This class defines a set of tasks (configure, compile etc.) that | ||
| 2257 | work for all Autotooled packages. | ||
| 2258 | It should usually be enough to define a few standard variables | ||
| 2259 | and then simply <code class="filename">inherit autotools</code>. | ||
| 2260 | This class can also work with software that emulates Autotools. | ||
| 2261 | For more information, see the | ||
| 2262 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#usingpoky-extend-addpkg-autotools" target="_top">Autotooled Package</a>" | ||
| 2263 | section in the Yocto Project Development Manual. | ||
| 2264 | </p><p> | ||
| 2265 | It's useful to have some idea of how the tasks defined by this class work | ||
| 2266 | and what they do behind the scenes. | ||
| 2267 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><code class="filename">do_configure</code> †regenerates the | ||
| 2268 | configure script (using <code class="filename">autoreconf</code>) and then launches it | ||
| 2269 | with a standard set of arguments used during cross-compilation. | ||
| 2270 | You can pass additional parameters to <code class="filename">configure</code> through the | ||
| 2271 | <code class="filename"><a class="link" href="#var-EXTRA_OECONF" title="EXTRA_OECONF">EXTRA_OECONF</a></code> variable. | ||
| 2272 | </p></li><li class="listitem"><p><code class="filename">do_compile</code> †runs <code class="filename">make</code> with | ||
| 2273 | arguments that specify the compiler and linker. | ||
| 2274 | You can pass additional arguments through | ||
| 2275 | the <code class="filename"><a class="link" href="#var-EXTRA_OEMAKE" title="EXTRA_OEMAKE">EXTRA_OEMAKE</a></code> variable. | ||
| 2276 | </p></li><li class="listitem"><p><code class="filename">do_install</code> †runs <code class="filename">make install</code> | ||
| 2277 | and passes a DESTDIR option, which takes its value from the standard | ||
| 2278 | <code class="filename"><a class="link" href="#var-DESTDIR" title="DESTDIR">DESTDIR</a></code> variable. | ||
| 2279 | </p></li></ul></div><p> | ||
| 2280 | </p></div><div class="section" title="7.3. Alternatives - update-alternatives.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-update-alternatives"></a>7.3. Alternatives - <code class="filename">update-alternatives.bbclass</code></h2></div></div></div><p> | ||
| 2281 | Several programs can fulfill the same or similar function and be installed with the same name. | ||
| 2282 | For example, the <code class="filename">ar</code> command is available from the | ||
| 2283 | <code class="filename">busybox</code>, <code class="filename">binutils</code> and | ||
| 2284 | <code class="filename">elfutils</code> packages. | ||
| 2285 | The <code class="filename">update-alternatives.bbclass</code> class handles renaming the | ||
| 2286 | binaries so that multiple packages can be installed without conflicts. | ||
| 2287 | The <code class="filename">ar</code> command still works regardless of which packages are installed | ||
| 2288 | or subsequently removed. | ||
| 2289 | The class renames the conflicting binary in each package and symlinks the highest | ||
| 2290 | priority binary during installation or removal of packages. | ||
| 2291 | </p><p> | ||
| 2292 | Four variables control this class: | ||
| 2293 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><code class="filename">ALTERNATIVE_NAME</code> †The name of the | ||
| 2294 | binary that is replaced (<code class="filename">ar</code> in this example).</p></li><li class="listitem"><p><code class="filename">ALTERNATIVE_LINK</code> †The path to | ||
| 2295 | the resulting binary (<code class="filename">/bin/ar</code> in this example).</p></li><li class="listitem"><p><code class="filename">ALTERNATIVE_PATH</code> †The path to the | ||
| 2296 | real binary (<code class="filename">/usr/bin/ar.binutils</code> in this example).</p></li><li class="listitem"><p><code class="filename">ALTERNATIVE_PRIORITY</code> †The priority of | ||
| 2297 | the binary. | ||
| 2298 | The version with the most features should have the highest priority.</p></li></ul></div><p> | ||
| 2299 | </p><p> | ||
| 2300 | Currently, the OpenEmbedded build system supports only one binary per package. | ||
| 2301 | </p></div><div class="section" title="7.4. Initscripts - update-rc.d.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-update-rc.d"></a>7.4. Initscripts - <code class="filename">update-rc.d.bbclass</code></h2></div></div></div><p> | ||
| 2302 | This class uses <code class="filename">update-rc.d</code> to safely install an | ||
| 2303 | initialization script on behalf of the package. | ||
| 2304 | The OpenEmbedded build system takes care of details such as making sure the script is stopped before | ||
| 2305 | a package is removed and started when the package is installed. | ||
| 2306 | Three variables control this class: | ||
| 2307 | <code class="filename"><a class="link" href="#var-INITSCRIPT_PACKAGES" title="INITSCRIPT_PACKAGES">INITSCRIPT_PACKAGES</a></code>, | ||
| 2308 | <code class="filename"><a class="link" href="#var-INITSCRIPT_NAME" title="INITSCRIPT_NAME">INITSCRIPT_NAME</a></code> and | ||
| 2309 | <code class="filename"><a class="link" href="#var-INITSCRIPT_PARAMS" title="INITSCRIPT_PARAMS">INITSCRIPT_PARAMS</a></code>. | ||
| 2310 | See the variable links for details. | ||
| 2311 | </p></div><div class="section" title="7.5. Binary config scripts - binconfig.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-binconfig"></a>7.5. Binary config scripts - <code class="filename">binconfig.bbclass</code></h2></div></div></div><p> | ||
| 2312 | Before <code class="filename">pkg-config</code> had become widespread, libraries shipped shell | ||
| 2313 | scripts to give information about the libraries and include paths needed | ||
| 2314 | to build software (usually named <code class="filename">LIBNAME-config</code>). | ||
| 2315 | This class assists any recipe using such scripts. | ||
| 2316 | </p><p> | ||
| 2317 | During staging, BitBake installs such scripts into the | ||
| 2318 | <code class="filename">sysroots/</code> directory. | ||
| 2319 | BitBake also changes all paths to point into the <code class="filename">sysroots/</code> | ||
| 2320 | directory so all builds that use the script will use the correct | ||
| 2321 | directories for the cross compiling layout. | ||
| 2322 | </p></div><div class="section" title="7.6. Debian renaming - debian.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-debian"></a>7.6. Debian renaming - <code class="filename">debian.bbclass</code></h2></div></div></div><p> | ||
| 2323 | This class renames packages so that they follow the Debian naming | ||
| 2324 | policy (i.e. <code class="filename">eglibc</code> becomes <code class="filename">libc6</code> | ||
| 2325 | and <code class="filename">eglibc-devel</code> becomes <code class="filename">libc6-dev</code>. | ||
| 2326 | </p></div><div class="section" title="7.7. Pkg-config - pkgconfig.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-pkgconfig"></a>7.7. Pkg-config - <code class="filename">pkgconfig.bbclass</code></h2></div></div></div><p> | ||
| 2327 | <code class="filename">pkg-config</code> brought standardization and this class aims to make its | ||
| 2328 | integration smooth for all libraries that make use of it. | ||
| 2329 | </p><p> | ||
| 2330 | During staging, BitBake installs <code class="filename">pkg-config</code> data into the | ||
| 2331 | <code class="filename">sysroots/</code> directory. | ||
| 2332 | By making use of sysroot functionality within <code class="filename">pkg-config</code>, | ||
| 2333 | this class no longer has to manipulate the files. | ||
| 2334 | </p></div><div class="section" title="7.8. Distribution of sources - src_distribute_local.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-src-distribute"></a>7.8. Distribution of sources - <code class="filename">src_distribute_local.bbclass</code></h2></div></div></div><p> | ||
| 2335 | Many software licenses require that source files be provided along with the binaries. | ||
| 2336 | To simplify this process, two classes were created: | ||
| 2337 | <code class="filename">src_distribute.bbclass</code> and | ||
| 2338 | <code class="filename">src_distribute_local.bbclass</code>. | ||
| 2339 | </p><p> | ||
| 2340 | The results of these classes are <code class="filename">tmp/deploy/source/</code> | ||
| 2341 | subdirs with sources sorted by | ||
| 2342 | <code class="filename"><a class="link" href="#var-LICENSE" title="LICENSE">LICENSE</a></code> field. | ||
| 2343 | If recipes list few licenses (or have entries like "Bitstream Vera"), | ||
| 2344 | the source archive is placed in each license directory. | ||
| 2345 | </p><p> | ||
| 2346 | This class operates using three modes: | ||
| 2347 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>copy:</em></span> Copies the files to the | ||
| 2348 | distribute directory.</p></li><li class="listitem"><p><span class="emphasis"><em>symlink:</em></span> Symlinks the files to the | ||
| 2349 | distribute directory.</p></li><li class="listitem"><p><span class="emphasis"><em>move+symlink:</em></span> Moves the files into | ||
| 2350 | the distribute directory and then symlinks them back.</p></li></ul></div><p> | ||
| 2351 | </p></div><div class="section" title="7.9. Perl modules - cpan.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-perl"></a>7.9. Perl modules - <code class="filename">cpan.bbclass</code></h2></div></div></div><p> | ||
| 2352 | Recipes for Perl modules are simple. | ||
| 2353 | These recipes usually only need to point to the source's archive and then inherit the | ||
| 2354 | proper <code class="filename">.bbclass</code> file. | ||
| 2355 | Building is split into two methods depending on which method the module authors used. | ||
| 2356 | </p><p> | ||
| 2357 | Modules that use old <code class="filename">Makefile.PL</code>-based build system require | ||
| 2358 | <code class="filename">cpan.bbclass</code> in their recipes. | ||
| 2359 | </p><p> | ||
| 2360 | Modules that use <code class="filename">Build.PL</code>-based build system require | ||
| 2361 | using <code class="filename">cpan_build.bbclass</code> in their recipes. | ||
| 2362 | </p></div><div class="section" title="7.10. Python extensions - distutils.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-distutils"></a>7.10. Python extensions - <code class="filename">distutils.bbclass</code></h2></div></div></div><p> | ||
| 2363 | Recipes for Python extensions are simple. | ||
| 2364 | These recipes usually only need to point to the source's archive and then inherit | ||
| 2365 | the proper <code class="filename">.bbclass</code> file. | ||
| 2366 | Building is split into two methods dependling on which method the module authors used. | ||
| 2367 | </p><p> | ||
| 2368 | Extensions that use an Autotools-based build system require Autotools and | ||
| 2369 | <code class="filename">distutils</code>-based <code class="filename">.bbclasse</code> files in their recipes. | ||
| 2370 | </p><p> | ||
| 2371 | Extensions that use <code class="filename">distutils</code>-based build systems require | ||
| 2372 | <code class="filename">distutils.bbclass</code> in their recipes. | ||
| 2373 | </p></div><div class="section" title="7.11. Developer Shell - devshell.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-devshell"></a>7.11. Developer Shell - <code class="filename">devshell.bbclass</code></h2></div></div></div><p> | ||
| 2374 | This class adds the <code class="filename">devshell</code> task. | ||
| 2375 | Distribution policy dictates whether to include this class. | ||
| 2376 | See the | ||
| 2377 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#platdev-appdev-devshell" target="_top">Using a Development Shell</a>" section | ||
| 2378 | in the Yocto Project Development Manual for more information about using <code class="filename">devshell</code>. | ||
| 2379 | </p></div><div class="section" title="7.12. Package Groups - packagegroup.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-packagegroup"></a>7.12. Package Groups - <code class="filename">packagegroup.bbclass</code></h2></div></div></div><p> | ||
| 2380 | This class sets default values appropriate for package group recipes (such as | ||
| 2381 | <code class="filename"><a class="link" href="#var-PACKAGES" title="PACKAGES">PACKAGES</a></code>, | ||
| 2382 | <code class="filename"><a class="link" href="#var-PACKAGE_ARCH" title="PACKAGE_ARCH">PACKAGE_ARCH</a></code>, | ||
| 2383 | <code class="filename"><a class="link" href="#var-ALLOW_EMPTY" title="ALLOW_EMPTY">ALLOW_EMPTY</a></code>, | ||
| 2384 | and so forth. | ||
| 2385 | It is highly recommended that all package group recipes inherit this class. | ||
| 2386 | </p><p> | ||
| 2387 | For information on how to use this class, see the | ||
| 2388 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#usingpoky-extend-customimage-customtasks" target="_top">Customizing Images Using Custom Package Tasks</a>" | ||
| 2389 | section in the Yocto Project Development Manual. | ||
| 2390 | </p><p> | ||
| 2391 | Previously, this class was named <code class="filename">task.bbclass</code>. | ||
| 2392 | </p></div><div class="section" title="7.13. Packaging - package*.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-package"></a>7.13. Packaging - <code class="filename">package*.bbclass</code></h2></div></div></div><p> | ||
| 2393 | The packaging classes add support for generating packages from a build's | ||
| 2394 | output. | ||
| 2395 | The core generic functionality is in <code class="filename">package.bbclass</code>. | ||
| 2396 | The code specific to particular package types is contained in various sub-classes such as | ||
| 2397 | <code class="filename">package_deb.bbclass</code>, <code class="filename">package_ipk.bbclass</code>, | ||
| 2398 | and <code class="filename">package_rpm.bbclass</code>. | ||
| 2399 | Most users will want one or more of these classes. | ||
| 2400 | </p><p> | ||
| 2401 | You can control the list of resulting package formats by using the | ||
| 2402 | <code class="filename"><a class="link" href="#var-PACKAGE_CLASSES" title="PACKAGE_CLASSES">PACKAGE_CLASSES</a></code> | ||
| 2403 | variable defined in the <code class="filename">local.conf</code> configuration file, | ||
| 2404 | which is located in the <code class="filename">conf</code> folder of the | ||
| 2405 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 2406 | When defining the variable, you can specify one or more package types. | ||
| 2407 | Since images are generated from packages, a packaging class is | ||
| 2408 | needed to enable image generation. | ||
| 2409 | The first class listed in this variable is used for image generation. | ||
| 2410 | </p><p> | ||
| 2411 | The package class you choose can affect build-time performance and has space | ||
| 2412 | ramifications. | ||
| 2413 | In general, building a package with RPM takes about thirty percent more time as | ||
| 2414 | compared to using IPK to build the same or similar package. | ||
| 2415 | This comparison takes into account a complete build of the package with all | ||
| 2416 | dependencies previously built. | ||
| 2417 | The reason for this discrepancy is because the RPM package manager creates and | ||
| 2418 | processes more metadata than the IPK package manager. | ||
| 2419 | Consequently, you might consider setting <code class="filename">PACKAGE_CLASSES</code> | ||
| 2420 | to "package_ipk" if you are building smaller systems. | ||
| 2421 | </p><p> | ||
| 2422 | Keep in mind, however, that RPM starts to provide more abilities than IPK due to | ||
| 2423 | the fact that it processes more metadata. | ||
| 2424 | For example, this information includes individual file types, file checksum generation | ||
| 2425 | and evaluation on install, sparse file support, conflict detection and resolution | ||
| 2426 | for multilib systems, ACID style upgrade, and repackaging abilities for rollbacks. | ||
| 2427 | </p><p> | ||
| 2428 | Another consideration for packages built using the RPM package manager is space. | ||
| 2429 | For smaller systems, the extra space used for the Berkley Database and the amount | ||
| 2430 | of metadata can affect your ability to do on-device upgrades. | ||
| 2431 | </p><p> | ||
| 2432 | You can find additional information on the effects of the package class at these | ||
| 2433 | two Yocto Project mailing list links: | ||
| 2434 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><a class="ulink" href="http://lists.yoctoproject.org/pipermail/poky/2011-May/006362.html" target="_top"> | ||
| 2435 | https://lists.yoctoproject.org/pipermail/poky/2011-May/006362.html</a></p></li><li class="listitem"><p><a class="ulink" href="http://lists.yoctoproject.org/pipermail/poky/2011-May/006363.html" target="_top"> | ||
| 2436 | https://lists.yoctoproject.org/pipermail/poky/2011-May/006363.html</a></p></li></ul></div><p> | ||
| 2437 | </p></div><div class="section" title="7.14. Building kernels - kernel.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-kernel"></a>7.14. Building kernels - <code class="filename">kernel.bbclass</code></h2></div></div></div><p> | ||
| 2438 | This class handles building Linux kernels. | ||
| 2439 | The class contains code to build all kernel trees. | ||
| 2440 | All needed headers are staged into the | ||
| 2441 | <code class="filename"><a class="link" href="#var-STAGING_KERNEL_DIR" title="STAGING_KERNEL_DIR">STAGING_KERNEL_DIR</a></code> | ||
| 2442 | directory to allow out-of-tree module builds using <code class="filename">module.bbclass</code>. | ||
| 2443 | </p><p> | ||
| 2444 | This means that each built kernel module is packaged separately and inter-module | ||
| 2445 | dependencies are created by parsing the <code class="filename">modinfo</code> output. | ||
| 2446 | If all modules are required, then installing the <code class="filename">kernel-modules</code> | ||
| 2447 | package installs all packages with modules and various other kernel packages | ||
| 2448 | such as <code class="filename">kernel-vmlinux</code>. | ||
| 2449 | </p><p> | ||
| 2450 | Various other classes are used by the kernel and module classes internally including | ||
| 2451 | <code class="filename">kernel-arch.bbclass</code>, <code class="filename">module_strip.bbclass</code>, | ||
| 2452 | <code class="filename">module-base.bbclass</code>, and <code class="filename">linux-kernel-base.bbclass</code>. | ||
| 2453 | </p></div><div class="section" title="7.15. Creating images - image.bbclass and rootfs*.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-image"></a>7.15. Creating images - <code class="filename">image.bbclass</code> and <code class="filename">rootfs*.bbclass</code></h2></div></div></div><p> | ||
| 2454 | These classes add support for creating images in several formats. | ||
| 2455 | First, the root filesystem is created from packages using | ||
| 2456 | one of the <code class="filename">rootfs_*.bbclass</code> | ||
| 2457 | files (depending on the package format used) and then the image is created. | ||
| 2458 | </p><p> | ||
| 2459 | The <code class="filename"><a class="link" href="#var-IMAGE_FSTYPES" title="IMAGE_FSTYPES">IMAGE_FSTYPES</a></code> | ||
| 2460 | variable controls the types of images to generate. | ||
| 2461 | </p><p> | ||
| 2462 | The <code class="filename"><a class="link" href="#var-IMAGE_INSTALL" title="IMAGE_INSTALL">IMAGE_INSTALL</a></code> | ||
| 2463 | variable controls the list of packages to install into the image. | ||
| 2464 | </p></div><div class="section" title="7.16. Host System sanity checks - sanity.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-sanity"></a>7.16. Host System sanity checks - <code class="filename">sanity.bbclass</code></h2></div></div></div><p> | ||
| 2465 | This class checks to see if prerequisite software is present so that | ||
| 2466 | users can be notified of potential problems that might affect their build. | ||
| 2467 | The class also performs basic user configuration checks from | ||
| 2468 | the <code class="filename">local.conf</code> configuration file to | ||
| 2469 | prevent common mistakes that cause build failures. | ||
| 2470 | Distribution policy usually determines whether to include this class. | ||
| 2471 | </p></div><div class="section" title="7.17. Generated output quality assurance checks - insane.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-insane"></a>7.17. Generated output quality assurance checks - <code class="filename">insane.bbclass</code></h2></div></div></div><p> | ||
| 2472 | This class adds a step to the package generation process that sanity checks the | ||
| 2473 | packages generated by the OpenEmbedded build system. | ||
| 2474 | A range of checks are performed that check the build's output | ||
| 2475 | for common problems that show up during runtime. | ||
| 2476 | Distribution policy usually dictates whether to include this class. | ||
| 2477 | </p><p> | ||
| 2478 | You can configure the sanity checks so that specific test failures either raise a warning or | ||
| 2479 | an error message. | ||
| 2480 | Typically, failures for new tests generate a warning. | ||
| 2481 | Subsequent failures for the same test would then generate an error message | ||
| 2482 | once the metadata is in a known and good condition. | ||
| 2483 | You use the <code class="filename">WARN_QA</code> variable to specify tests for which you | ||
| 2484 | want to generate a warning message on failure. | ||
| 2485 | You use the <code class="filename">ERROR_QA</code> variable to specify tests for which you | ||
| 2486 | want to generate an error message on failure. | ||
| 2487 | </p><p> | ||
| 2488 | The following list shows the tests you can list with the <code class="filename">WARN_QA</code> | ||
| 2489 | and <code class="filename">ERROR_QA</code> variables: | ||
| 2490 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em><code class="filename">ldflags:</code></em></span> | ||
| 2491 | Ensures that the binaries were linked with the | ||
| 2492 | <code class="filename">LDFLAGS</code> options provided by the build system. | ||
| 2493 | If this test fails, check that the <code class="filename">LDFLAGS</code> variable | ||
| 2494 | is being passed to the linker command.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">useless-rpaths:</code></em></span> | ||
| 2495 | Checks for dynamic library load paths (rpaths) in the binaries that | ||
| 2496 | by default on a standard system are searched by the linker (e.g. | ||
| 2497 | <code class="filename">/lib</code> and <code class="filename">/usr/lib</code>). | ||
| 2498 | While these paths will not cause any breakage, they do waste space and | ||
| 2499 | are unnecessary.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">rpaths:</code></em></span> | ||
| 2500 | Checks for rpaths in the binaries that contain build system paths such | ||
| 2501 | as <code class="filename">TMPDIR</code>. | ||
| 2502 | If this test fails, bad <code class="filename">-rpath</code> options are being | ||
| 2503 | passed to the linker commands and your binaries have potential security | ||
| 2504 | issues.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">dev-so:</code></em></span> | ||
| 2505 | Checks that the <code class="filename">.so</code> symbolic links are in the | ||
| 2506 | <code class="filename">-dev</code> package and not in any of the other packages. | ||
| 2507 | In general, these symlinks are only useful for development purposes. | ||
| 2508 | Thus, the <code class="filename">-dev</code> package is the correct location for | ||
| 2509 | them. | ||
| 2510 | Some very rare cases do exist for dynamically loaded modules where | ||
| 2511 | these symlinks are needed instead in the main package. | ||
| 2512 | </p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">debug-files:</code></em></span> | ||
| 2513 | Checks for <code class="filename">.debug</code> directories in anything but the | ||
| 2514 | <code class="filename">-dbg</code> package. | ||
| 2515 | The debug files should all be in the <code class="filename">-dbg</code> package. | ||
| 2516 | Thus, anything packaged elsewhere is incorrect packaging.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">arch:</code></em></span> | ||
| 2517 | Checks the Executable and Linkable Format (ELF) type, bit size and endianness | ||
| 2518 | of any binaries to ensure it matches the target architecture. | ||
| 2519 | This test fails if any binaries don't match the type since there would be an | ||
| 2520 | incompatibility. | ||
| 2521 | Sometimes software, like bootloaders, might need to bypass this check. | ||
| 2522 | </p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">debug-deps:</code></em></span> | ||
| 2523 | Checks that <code class="filename">-dbg</code> packages only depend on other | ||
| 2524 | <code class="filename">-dbg</code> packages and not on any other types of packages, | ||
| 2525 | which would cause a packaging bug.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">dev-deps:</code></em></span> | ||
| 2526 | Checks that <code class="filename">-dev</code> packages only depend on other | ||
| 2527 | <code class="filename">-dev</code> packages and not on any other types of packages, | ||
| 2528 | which would be a packaging bug.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">pkgconfig:</code></em></span> | ||
| 2529 | Checks <code class="filename">.pc</code> files for any | ||
| 2530 | <code class="filename">TMPDIR/WORKDIR</code> paths. | ||
| 2531 | Any <code class="filename">.pc</code> file containing these paths is incorrect | ||
| 2532 | since <code class="filename">pkg-config</code> itself adds the correct sysroot prefix | ||
| 2533 | when the files are accessed.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">la:</code></em></span> | ||
| 2534 | Checks <code class="filename">.la</code> files for any <code class="filename">TMPDIR</code> | ||
| 2535 | paths. | ||
| 2536 | Any <code class="filename">.la</code> file continaing these paths is incorrect since | ||
| 2537 | <code class="filename">libtool</code> adds the correct sysroot prefix when using the | ||
| 2538 | files automatically itself.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">desktop:</code></em></span> | ||
| 2539 | Runs the <code class="filename">desktop-file-validate</code> program against any | ||
| 2540 | <code class="filename">.desktop</code> files to validate their contents against | ||
| 2541 | the specification for <code class="filename">.desktop</code> files.</p></li></ul></div><p> | ||
| 2542 | </p></div><div class="section" title="7.18. Autotools configuration data cache - siteinfo.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-siteinfo"></a>7.18. Autotools configuration data cache - <code class="filename">siteinfo.bbclass</code></h2></div></div></div><p> | ||
| 2543 | Autotools can require tests that must execute on the target hardware. | ||
| 2544 | Since this is not possible in general when cross compiling, site information is | ||
| 2545 | used to provide cached test results so these tests can be skipped over but | ||
| 2546 | still make the correct values available. | ||
| 2547 | The <code class="filename"><a class="link" href="#structure-meta-site" title="5.3.18. meta/site/">meta/site directory</a></code> | ||
| 2548 | contains test results sorted into different categories such as architecture, endianness, and | ||
| 2549 | the <code class="filename">libc</code> used. | ||
| 2550 | Site information provides a list of files containing data relevant to | ||
| 2551 | the current build in the | ||
| 2552 | <code class="filename"><a class="link" href="#var-CONFIG_SITE" title="CONFIG_SITE">CONFIG_SITE</a></code> variable | ||
| 2553 | that Autotools automatically picks up. | ||
| 2554 | </p><p> | ||
| 2555 | The class also provides variables like | ||
| 2556 | <code class="filename"><a class="link" href="#var-SITEINFO_ENDIANNESS" title="SITEINFO_ENDIANNESS">SITEINFO_ENDIANNESS</a></code> | ||
| 2557 | and <code class="filename"><a class="link" href="#var-SITEINFO_BITS" title="SITEINFO_BITS">SITEINFO_BITS</a></code> | ||
| 2558 | that can be used elsewhere in the metadata. | ||
| 2559 | </p><p> | ||
| 2560 | Because this class is included from <code class="filename">base.bbclass</code>, it is always active. | ||
| 2561 | </p></div><div class="section" title="7.19. Adding Users - useradd.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-useradd"></a>7.19. Adding Users - <code class="filename">useradd.bbclass</code></h2></div></div></div><p> | ||
| 2562 | If you have packages that install files that are owned by custom users or groups, | ||
| 2563 | you can use this class to specify those packages and associate the users and groups | ||
| 2564 | with those packages. | ||
| 2565 | The <code class="filename">meta-skeleton/recipes-skeleton/useradd/useradd-example.bb</code> | ||
| 2566 | recipe in the <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a> | ||
| 2567 | provides a simple exmample that shows how to add three | ||
| 2568 | users and groups to two packages. | ||
| 2569 | See the <code class="filename">useradd-example.bb</code> for more information on how to | ||
| 2570 | use this class. | ||
| 2571 | </p></div><div class="section" title="7.20. Using External Source - externalsrc.bbclass"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-externalsrc"></a>7.20. Using External Source - <code class="filename">externalsrc.bbclass</code></h2></div></div></div><p> | ||
| 2572 | You can use this class to build software from source code that is external to the | ||
| 2573 | OpenEmbedded build system. | ||
| 2574 | In other words, your source code resides in an external tree outside of the Yocto Project. | ||
| 2575 | Building software from an external source tree means that the normal fetch, unpack, and | ||
| 2576 | patch process is not used. | ||
| 2577 | </p><p> | ||
| 2578 | To use the class, you need to define the | ||
| 2579 | <a class="link" href="#var-S" title="S"><code class="filename">S</code></a> variable to point to the directory that contains the source files. | ||
| 2580 | You also need to have your recipe inherit the <code class="filename">externalsrc.bbclass</code> class. | ||
| 2581 | </p><p> | ||
| 2582 | This class expects the source code to support recipe builds that use the | ||
| 2583 | <a class="link" href="#var-B" title="B"><code class="filename">B</code></a> variable to point to the directory in | ||
| 2584 | which the OpenEmbedded build system places the generated objects built from the recipes. | ||
| 2585 | By default, the <code class="filename">B</code> directory is set to the following, which is separate from the | ||
| 2586 | Source Directory (<code class="filename">S</code>): | ||
| 2587 | </p><pre class="literallayout"> | ||
| 2588 | ${WORKDIR}/${BPN}/{PV}/ | ||
| 2589 | </pre><p> | ||
| 2590 | See the glossary entries for the | ||
| 2591 | <a class="link" href="#var-WORKDIR" title="WORKDIR"><code class="filename">WORKDIR</code></a>, | ||
| 2592 | <a class="link" href="#var-BPN" title="BPN"><code class="filename">BPN</code></a>, | ||
| 2593 | <a class="link" href="#var-PV" title="PV"><code class="filename">PV</code></a>, | ||
| 2594 | <a class="link" href="#var-S" title="S"><code class="filename">S</code></a>, and | ||
| 2595 | <a class="link" href="#var-B" title="B"><code class="filename">B</code></a> for more information. | ||
| 2596 | </p><p> | ||
| 2597 | You can build object files in the external tree by setting the | ||
| 2598 | <code class="filename">B</code> variable equal to <code class="filename">"${S}"</code>. | ||
| 2599 | However, this practice does not work well if you use the source for more than one variant | ||
| 2600 | (i.e., "natives" such as <code class="filename">quilt-native</code>, | ||
| 2601 | or "crosses" such as <code class="filename">gcc-cross</code>). | ||
| 2602 | So, be sure there are no "native", "cross", or "multilib" variants of the recipe. | ||
| 2603 | </p><p> | ||
| 2604 | If you do want to build different variants of a recipe, you can use the | ||
| 2605 | <a class="link" href="#var-BBCLASSEXTEND" title="BBCLASSEXTEND"><code class="filename">BBCLASSEXTEND</code></a> variable. | ||
| 2606 | When you do, the <a class="link" href="#var-B" title="B"><code class="filename">B</code></a> variable must support the | ||
| 2607 | recipe's ability to build variants in different working directories. | ||
| 2608 | Most autotools-based recipes support separating these directories. | ||
| 2609 | The OpenEmbedded build system defaults to using separate directories for <code class="filename">gcc</code> | ||
| 2610 | and some kernel recipes. | ||
| 2611 | Alternatively, you can make sure that separate recipes exist that each | ||
| 2612 | use the <code class="filename">BBCLASSEXTEND</code> variable to build each variant. | ||
| 2613 | The separate recipes can inherit a single target recipe. | ||
| 2614 | </p><p> | ||
| 2615 | For information on how to use this class, see the | ||
| 2616 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#building-software-from-an-external-source" target="_top">Building | ||
| 2617 | Software from an External Source</a>" section in the Yocto Project Development Manual. | ||
| 2618 | </p></div><div class="section" title="7.21. Other Classes"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-classes-others"></a>7.21. Other Classes</h2></div></div></div><p> | ||
| 2619 | Thus far, this chapter has discussed only the most useful and important | ||
| 2620 | classes. | ||
| 2621 | However, other classes exist within the <code class="filename">meta/classes</code> directory | ||
| 2622 | in the <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 2623 | You can examine the <code class="filename">.bbclass</code> files directly for more | ||
| 2624 | information. | ||
| 2625 | </p></div></div> | ||
| 2626 | |||
| 2627 | <div class="chapter" title="Chapter 8. Images"><div class="titlepage"><div><div><h2 class="title"><a id="ref-images"></a>Chapter 8. Images</h2></div></div></div><p> | ||
| 2628 | The OpenEmbedded build process supports several types of images to satisfy different needs. | ||
| 2629 | When you issue the <code class="filename">bitbake</code> command you provide a “top-level†recipe | ||
| 2630 | that essentially begins the build for the type of image you want. | ||
| 2631 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 2632 | Building an image without GNU General Public License Version 3 (GPLv3) components | ||
| 2633 | is only supported for minimal and base images. | ||
| 2634 | Furthermore, if you are going to build an image using non-GPLv3 components, | ||
| 2635 | you must make the following changes in the <code class="filename">local.conf</code> file | ||
| 2636 | before using the BitBake command to build the minimal or base image: | ||
| 2637 | <pre class="literallayout"> | ||
| 2638 | 1. Comment out the EXTRA_IMAGE_FEATURES line | ||
| 2639 | 2. Set INCOMPATIBLE_LICENSE = "GPLv3" | ||
| 2640 | </pre></div><p> | ||
| 2641 | From within the <code class="filename">poky</code> Git repository, use the following command to list | ||
| 2642 | the supported images: | ||
| 2643 | </p><pre class="literallayout"> | ||
| 2644 | $ ls meta*/recipes*/images/*.bb | ||
| 2645 | </pre><p> | ||
| 2646 | These recipes reside in the <code class="filename">meta/recipes-core/images</code>, | ||
| 2647 | <code class="filename">meta/recipes-extended/images</code>, | ||
| 2648 | <code class="filename">meta/recipes-graphics/images</code>, and | ||
| 2649 | <code class="filename">meta/recipes-sato/images</code> directories | ||
| 2650 | within the <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">source directory</a>. | ||
| 2651 | Although the recipe names are somewhat explanatory, here is a list that describes them: | ||
| 2652 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-base</code>:</em></span> | ||
| 2653 | A console-only image that fully supports the target device hardware.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-minimal</code>:</em></span> | ||
| 2654 | A small image just capable of allowing a device to boot.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-minimal-dev</code>:</em></span> | ||
| 2655 | A <code class="filename">core-image-minimal</code> image suitable for development work | ||
| 2656 | using the host. | ||
| 2657 | The image includes headers and libraries you can use in a host development | ||
| 2658 | environment. | ||
| 2659 | </p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-minimal-initramfs</code>:</em></span> | ||
| 2660 | A <code class="filename">core-image-minimal</code> image that has the Minimal RAM-based | ||
| 2661 | Initial Root Filesystem (<code class="filename">initramfs</code>) as part of the kernel, | ||
| 2662 | which allows the system to find the first “init†program more efficiently. | ||
| 2663 | </p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-minimal-mtdutils</code>:</em></span> | ||
| 2664 | A <code class="filename">core-image-minimal</code> image that has support | ||
| 2665 | for the Minimal MTD Utilities, which let the user interact with the | ||
| 2666 | MTD subsystem in the kernel to perform operations on flash devices. | ||
| 2667 | </p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-x11</code>:</em></span> | ||
| 2668 | A very basic X11 image with a terminal. | ||
| 2669 | </p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-basic</code>:</em></span> | ||
| 2670 | A console-only image with more full-featured Linux system | ||
| 2671 | functionality installed.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-lsb</code>:</em></span> | ||
| 2672 | An image that conforms to the Linux Standard Base (LSB) specification.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-lsb-dev</code>:</em></span> | ||
| 2673 | A <code class="filename">core-image-lsb</code> image that is suitable for development work | ||
| 2674 | using the host. | ||
| 2675 | The image includes headers and libraries you can use in a host development | ||
| 2676 | environment. | ||
| 2677 | </p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-lsb-sdk</code>:</em></span> | ||
| 2678 | A <code class="filename">core-image-lsb</code> that includes everything in meta-toolchain | ||
| 2679 | but also includes development headers and libraries to form a complete standalone SDK. | ||
| 2680 | This image is suitable for development using the target.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-clutter</code>:</em></span> | ||
| 2681 | An image with support for the Open GL-based toolkit Clutter, which enables development of | ||
| 2682 | rich and animated graphical user interfaces.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-sato</code>:</em></span> | ||
| 2683 | An image with Sato support, a mobile environment and visual style that works well | ||
| 2684 | with mobile devices. | ||
| 2685 | The image supports X11 with a Sato theme and applications such as | ||
| 2686 | a terminal, editor, file manager, media player, and so forth.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-sato-dev</code>:</em></span> | ||
| 2687 | A <code class="filename">core-image-sato</code> image suitable for development | ||
| 2688 | using the host. | ||
| 2689 | The image includes libraries needed to build applications on the device itself, | ||
| 2690 | testing and profiling tools, and debug symbols. | ||
| 2691 | This image was formerly <code class="filename">core-image-sdk</code>.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-sato-sdk</code>:</em></span> | ||
| 2692 | A <code class="filename">core-image-sato</code> image that includes everything in meta-toolchain. | ||
| 2693 | The image also includes development headers and libraries to form a complete standalone SDK | ||
| 2694 | and is suitable for development using the target.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-rt</code>:</em></span> | ||
| 2695 | A <code class="filename">core-image-minimal</code> image plus a real-time test suite and | ||
| 2696 | tools appropriate for real-time use.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-rt-sdk</code>:</em></span> | ||
| 2697 | A <code class="filename">core-image-rt</code> image that includes everything in | ||
| 2698 | <code class="filename">meta-toolchain</code>. | ||
| 2699 | The image also includes development headers and libraries to form a complete | ||
| 2700 | stand-alone SDK and is suitable for development using the target.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-gtk-directfb</code>:</em></span> | ||
| 2701 | An image that uses <code class="filename">gtk+</code> over <code class="filename">directfb</code> | ||
| 2702 | instead of X11. | ||
| 2703 | In order to build, this image requires specific distro configuration that enables | ||
| 2704 | <code class="filename">gtk</code> over <code class="filename">directfb</code>.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">build-appliance-image</code>:</em></span> | ||
| 2705 | An image you can boot and run using either the | ||
| 2706 | <a class="ulink" href="http://www.vmware.com/products/player/overview.html" target="_top">VMware Player</a> | ||
| 2707 | or <a class="ulink" href="http://www.vmware.com/products/workstation/overview.html" target="_top">VMware Workstation</a>. | ||
| 2708 | For more information on this image, see the | ||
| 2709 | <a class="ulink" href="http://www.yoctoproject.org/documentation/build-appliance" target="_top">Build Appliance</a> page on | ||
| 2710 | the Yocto Project website.</p></li></ul></div><div class="tip" title="Tip" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Tip</h3> | ||
| 2711 | From the Yocto Project release 1.1 onwards, <code class="filename">-live</code> and | ||
| 2712 | <code class="filename">-directdisk</code> images have been replaced by a "live" | ||
| 2713 | option in <code class="filename">IMAGE_FSTYPES</code> that will work with any image to produce an | ||
| 2714 | image file that can be | ||
| 2715 | copied directly to a CD or USB device and run as is. | ||
| 2716 | To build a live image, simply add | ||
| 2717 | "live" to <code class="filename">IMAGE_FSTYPES</code> within the <code class="filename">local.conf</code> | ||
| 2718 | file or wherever appropriate and then build the desired image as normal. | ||
| 2719 | </div></div> | ||
| 2720 | |||
| 2721 | <div class="chapter" title="Chapter 9. Reference: Features"><div class="titlepage"><div><div><h2 class="title"><a id="ref-features"></a>Chapter 9. Reference: Features</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="section"><a href="#ref-features-distro">9.1. Distro</a></span></dt><dt><span class="section"><a href="#ref-features-machine">9.2. Machine</a></span></dt><dt><span class="section"><a href="#ref-features-image">9.3. Images</a></span></dt><dt><span class="section"><a href="#ref-features-backfill">9.4. Feature Backfilling</a></span></dt></dl></div><p> | ||
| 2722 | Features provide a mechanism for working out which packages | ||
| 2723 | should be included in the generated images. | ||
| 2724 | Distributions can select which features they want to support through the | ||
| 2725 | <code class="filename"><a class="link" href="#var-DISTRO_FEATURES" title="DISTRO_FEATURES">DISTRO_FEATURES</a></code> | ||
| 2726 | variable, which is set in the <code class="filename">poky.conf</code> distribution configuration file. | ||
| 2727 | Machine features are set in the | ||
| 2728 | <code class="filename"><a class="link" href="#var-MACHINE_FEATURES" title="MACHINE_FEATURES">MACHINE_FEATURES</a></code> | ||
| 2729 | variable, which is set in the machine configuration file and | ||
| 2730 | specifies the hardware features for a given machine. | ||
| 2731 | </p><p> | ||
| 2732 | These two variables combine to work out which kernel modules, | ||
| 2733 | utilities, and other packages to include. | ||
| 2734 | A given distribution can support a selected subset of features so some machine features might not | ||
| 2735 | be included if the distribution itself does not support them. | ||
| 2736 | </p><p> | ||
| 2737 | One method you can use to determine which recipes are checking to see if a | ||
| 2738 | particular feature is contained or not is to <code class="filename">grep</code> through | ||
| 2739 | the metadata for the feature. | ||
| 2740 | Here is an example that discovers the recipes whose build is potentially | ||
| 2741 | changed based on a given feature: | ||
| 2742 | </p><pre class="literallayout"> | ||
| 2743 | $ cd $HOME/poky | ||
| 2744 | $ git grep 'contains.*MACHINE_FEATURES.*<feature>' | ||
| 2745 | </pre><p> | ||
| 2746 | </p><p> | ||
| 2747 | This chapter provides a reference of shipped machine and distro features | ||
| 2748 | you can include as part of the image, a reference on image types you can | ||
| 2749 | build, and a reference on feature backfilling. | ||
| 2750 | </p><div class="section" title="9.1. Distro"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-features-distro"></a>9.1. Distro</h2></div></div></div><p> | ||
| 2751 | The items below are features you can use with | ||
| 2752 | <a class="link" href="#var-DISTRO_FEATURES" title="DISTRO_FEATURES"><code class="filename">DISTRO_FEATURES</code></a>. | ||
| 2753 | Features do not have a one-to-one correspondence to packages, and they can | ||
| 2754 | go beyond simply controlling the installation of a package or packages. | ||
| 2755 | Sometimes a feature can influence how certain recipes are built. | ||
| 2756 | For example, a feature might determine whether a particular configure option | ||
| 2757 | is specified within <code class="filename">do_configure</code> for a particular | ||
| 2758 | recipe. | ||
| 2759 | </p><p> | ||
| 2760 | This list only represents features as shipped with the Yocto Project metadata: | ||
| 2761 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>alsa:</em></span> ALSA support will be included (OSS compatibility | ||
| 2762 | kernel modules will be installed if available).</p></li><li class="listitem"><p><span class="emphasis"><em>bluetooth:</em></span> Include bluetooth support (integrated BT only) | ||
| 2763 | </p></li><li class="listitem"><p><span class="emphasis"><em>ext2:</em></span> Include tools for supporting for devices with internal | ||
| 2764 | HDD/Microdrive for storing files (instead of Flash only devices) | ||
| 2765 | </p></li><li class="listitem"><p><span class="emphasis"><em>irda:</em></span> Include Irda support | ||
| 2766 | </p></li><li class="listitem"><p><span class="emphasis"><em>keyboard:</em></span> Include keyboard support (e.g. keymaps will be | ||
| 2767 | loaded during boot). | ||
| 2768 | </p></li><li class="listitem"><p><span class="emphasis"><em>pci:</em></span> Include PCI bus support | ||
| 2769 | </p></li><li class="listitem"><p><span class="emphasis"><em>pcmcia:</em></span> Include PCMCIA/CompactFlash support | ||
| 2770 | </p></li><li class="listitem"><p><span class="emphasis"><em>usbgadget:</em></span> USB Gadget Device support (for USB | ||
| 2771 | networking/serial/storage) | ||
| 2772 | </p></li><li class="listitem"><p><span class="emphasis"><em>usbhost:</em></span> USB Host support (allows to connect external | ||
| 2773 | keyboard, mouse, storage, network etc) | ||
| 2774 | </p></li><li class="listitem"><p><span class="emphasis"><em>wifi:</em></span> WiFi support (integrated only) | ||
| 2775 | </p></li><li class="listitem"><p><span class="emphasis"><em>cramfs:</em></span> CramFS support | ||
| 2776 | </p></li><li class="listitem"><p><span class="emphasis"><em>ipsec:</em></span> IPSec support | ||
| 2777 | </p></li><li class="listitem"><p><span class="emphasis"><em>ipv6:</em></span> IPv6 support | ||
| 2778 | </p></li><li class="listitem"><p><span class="emphasis"><em>nfs:</em></span> NFS client support (for mounting NFS exports on | ||
| 2779 | device)</p></li><li class="listitem"><p><span class="emphasis"><em>ppp:</em></span> PPP dialup support</p></li><li class="listitem"><p><span class="emphasis"><em>smbfs:</em></span> SMB networks client support (for mounting | ||
| 2780 | Samba/Microsoft Windows shares on device)</p></li></ul></div><p> | ||
| 2781 | </p></div><div class="section" title="9.2. Machine"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-features-machine"></a>9.2. Machine</h2></div></div></div><p> | ||
| 2782 | The items below are features you can use with | ||
| 2783 | <a class="link" href="#var-MACHINE_FEATURES" title="MACHINE_FEATURES"><code class="filename">MACHINE_FEATURES</code></a>. | ||
| 2784 | Features do not have a one-to-one correspondence to packages, and they can | ||
| 2785 | go beyond simply controlling the installation of a package or packages. | ||
| 2786 | Sometimes a feature can influence how certain recipes are built. | ||
| 2787 | For example, a feature might determine whether a particular configure option | ||
| 2788 | is specified within <code class="filename">do_configure</code> for a particular | ||
| 2789 | recipe. | ||
| 2790 | </p><p> | ||
| 2791 | This feature list only represents features as shipped with the Yocto Project metadata: | ||
| 2792 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>acpi:</em></span> Hardware has ACPI (x86/x86_64 only) | ||
| 2793 | </p></li><li class="listitem"><p><span class="emphasis"><em>alsa:</em></span> Hardware has ALSA audio drivers | ||
| 2794 | </p></li><li class="listitem"><p><span class="emphasis"><em>apm:</em></span> Hardware uses APM (or APM emulation) | ||
| 2795 | </p></li><li class="listitem"><p><span class="emphasis"><em>bluetooth:</em></span> Hardware has integrated BT | ||
| 2796 | </p></li><li class="listitem"><p><span class="emphasis"><em>ext2:</em></span> Hardware HDD or Microdrive | ||
| 2797 | </p></li><li class="listitem"><p><span class="emphasis"><em>irda:</em></span> Hardware has Irda support | ||
| 2798 | </p></li><li class="listitem"><p><span class="emphasis"><em>keyboard:</em></span> Hardware has a keyboard | ||
| 2799 | </p></li><li class="listitem"><p><span class="emphasis"><em>pci:</em></span> Hardware has a PCI bus | ||
| 2800 | </p></li><li class="listitem"><p><span class="emphasis"><em>pcmcia:</em></span> Hardware has PCMCIA or CompactFlash sockets | ||
| 2801 | </p></li><li class="listitem"><p><span class="emphasis"><em>screen:</em></span> Hardware has a screen | ||
| 2802 | </p></li><li class="listitem"><p><span class="emphasis"><em>serial:</em></span> Hardware has serial support (usually RS232) | ||
| 2803 | </p></li><li class="listitem"><p><span class="emphasis"><em>touchscreen:</em></span> Hardware has a touchscreen | ||
| 2804 | </p></li><li class="listitem"><p><span class="emphasis"><em>usbgadget:</em></span> Hardware is USB gadget device capable | ||
| 2805 | </p></li><li class="listitem"><p><span class="emphasis"><em>usbhost:</em></span> Hardware is USB Host capable | ||
| 2806 | </p></li><li class="listitem"><p><span class="emphasis"><em>wifi:</em></span> Hardware has integrated WiFi | ||
| 2807 | </p></li></ul></div><p> | ||
| 2808 | </p></div><div class="section" title="9.3. Images"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-features-image"></a>9.3. Images</h2></div></div></div><p> | ||
| 2809 | The contents of images generated by the OpenEmbedded build system can be controlled by the | ||
| 2810 | <code class="filename"><a class="link" href="#var-IMAGE_FEATURES" title="IMAGE_FEATURES">IMAGE_FEATURES</a></code> | ||
| 2811 | and <code class="filename"><a class="link" href="#var-EXTRA_IMAGE_FEATURES" title="EXTRA_IMAGE_FEATURES">EXTRA_IMAGE_FEATURES</a></code> | ||
| 2812 | variables that you typically configure in your image recipes. | ||
| 2813 | Through these variables you can add several different | ||
| 2814 | predefined packages such as development utilities or packages with debug | ||
| 2815 | information needed to investigate application problems or profile applications. | ||
| 2816 | </p><p> | ||
| 2817 | Current list of | ||
| 2818 | <code class="filename">IMAGE_FEATURES</code> contains the following: | ||
| 2819 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>splash:</em></span> Enables showing a splash screen during boot. | ||
| 2820 | By default, this screen is provided by <code class="filename">psplash</code>, which does | ||
| 2821 | allow customization. | ||
| 2822 | If you prefer to use an alternative splash screen package, you can do so by | ||
| 2823 | setting the <code class="filename">SPLASH</code> variable | ||
| 2824 | to a different package name (or names) within the image recipe or at the distro | ||
| 2825 | configuration level.</p></li><li class="listitem"><p><span class="emphasis"><em>ssh-server-dropbear:</em></span> Installs the Dropbear minimal | ||
| 2826 | SSH server. | ||
| 2827 | </p></li><li class="listitem"><p><span class="emphasis"><em>ssh-server-openssh:</em></span> Installs the OpenSSH SSH server, | ||
| 2828 | which is more full-featured than Dropbear. | ||
| 2829 | Note that if both the OpenSSH SSH server and the Dropbear minimal SSH server | ||
| 2830 | are present in <code class="filename">IMAGE_FEATURES</code>, then OpenSSH will take | ||
| 2831 | precedence and Dropbear will not be installed.</p></li><li class="listitem"><p><span class="emphasis"><em>x11:</em></span> Installs the X server</p></li><li class="listitem"><p><span class="emphasis"><em>x11-base:</em></span> Installs the X server with a | ||
| 2832 | minimal environment.</p></li><li class="listitem"><p><span class="emphasis"><em>x11-sato:</em></span> Installs the OpenedHand Sato environment. | ||
| 2833 | </p></li><li class="listitem"><p><span class="emphasis"><em>tools-sdk:</em></span> Installs a full SDK that runs on the device. | ||
| 2834 | </p></li><li class="listitem"><p><span class="emphasis"><em>tools-debug:</em></span> Installs debugging tools such as | ||
| 2835 | <code class="filename">strace</code> and <code class="filename">gdb</code>. | ||
| 2836 | </p></li><li class="listitem"><p><span class="emphasis"><em>tools-profile:</em></span> Installs profiling tools such as | ||
| 2837 | <code class="filename">oprofile</code>, <code class="filename">exmap</code>, and | ||
| 2838 | <code class="filename">LTTng</code>.</p></li><li class="listitem"><p><span class="emphasis"><em>tools-testapps:</em></span> Installs device testing tools (e.g. | ||
| 2839 | touchscreen debugging).</p></li><li class="listitem"><p><span class="emphasis"><em>nfs-server:</em></span> Installs an NFS server.</p></li><li class="listitem"><p><span class="emphasis"><em>dev-pkgs:</em></span> Installs development packages (headers and | ||
| 2840 | extra library links) for all packages installed in a given image.</p></li><li class="listitem"><p><span class="emphasis"><em>staticdev-pkgs:</em></span> Installs static development | ||
| 2841 | packages (i.e. static libraries containing <code class="filename">*.a</code> files) for all | ||
| 2842 | packages installed in a given image.</p></li><li class="listitem"><p><span class="emphasis"><em>dbg-pkgs:</em></span> Installs debug symbol packages for all packages | ||
| 2843 | installed in a given image.</p></li><li class="listitem"><p><span class="emphasis"><em>doc-pkgs:</em></span> Installs documentation packages for all packages | ||
| 2844 | installed in a given image.</p></li></ul></div><p> | ||
| 2845 | </p></div><div class="section" title="9.4. Feature Backfilling"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-features-backfill"></a>9.4. Feature Backfilling</h2></div></div></div><p> | ||
| 2846 | Sometimes it is necessary in the OpenEmbedded build system to extend | ||
| 2847 | <a class="link" href="#var-MACHINE_FEATURES" title="MACHINE_FEATURES"><code class="filename">MACHINE_FEATURES</code></a> | ||
| 2848 | or <a class="link" href="#var-DISTRO_FEATURES" title="DISTRO_FEATURES"><code class="filename">DISTRO_FEATURES</code></a> | ||
| 2849 | to control functionality that was previously enabled and not able | ||
| 2850 | to be disabled. | ||
| 2851 | For these cases, we need to add an | ||
| 2852 | additional feature item to appear in one of these variables, | ||
| 2853 | but we do not want to force developers who have existing values | ||
| 2854 | of the variables in their configuration to add the new feature | ||
| 2855 | in order to retain the same overall level of functionality. | ||
| 2856 | Thus, the OpenEmbedded build system has a mechanism to | ||
| 2857 | automatically "backfill" these added features into existing | ||
| 2858 | distro or machine configurations. | ||
| 2859 | You can see the list of features for which this is done by | ||
| 2860 | finding the | ||
| 2861 | <a class="link" href="#var-DISTRO_FEATURES_BACKFILL" title="DISTRO_FEATURES_BACKFILL"><code class="filename">DISTRO_FEATURES_BACKFILL</code></a> | ||
| 2862 | and <a class="link" href="#var-MACHINE_FEATURES_BACKFILL" title="MACHINE_FEATURES_BACKFILL"><code class="filename">MACHINE_FEATURES_BACKFILL</code></a> | ||
| 2863 | variables in the <code class="filename">meta/conf/bitbake.conf</code> file. | ||
| 2864 | </p><p> | ||
| 2865 | Because such features are backfilled by default into all | ||
| 2866 | configurations as described in the previous paragraph, developers | ||
| 2867 | who wish to disable the new features need to be able to selectively | ||
| 2868 | prevent the backfilling from occurring. | ||
| 2869 | They can do this by adding the undesired feature or features to the | ||
| 2870 | <a class="link" href="#var-DISTRO_FEATURES_BACKFILL_CONSIDERED" title="DISTRO_FEATURES_BACKFILL_CONSIDERED"><code class="filename">DISTRO_FEATURES_BACKFILL_CONSIDERED</code></a> | ||
| 2871 | or <a class="link" href="#var-MACHINE_FEATURES_BACKFILL_CONSIDERED" title="MACHINE_FEATURES_BACKFILL_CONSIDERED"><code class="filename">MACHINE_FEATURES_BACKFILL_CONSIDERED</code></a> | ||
| 2872 | variables for distro features and machine features respectively. | ||
| 2873 | </p><p> | ||
| 2874 | Here are two examples to help illustrate feature backfilling: | ||
| 2875 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>The "pulseaudio" distro feature option</em></span>: | ||
| 2876 | Previously, PulseAudio support was enabled within the Qt and | ||
| 2877 | GStreamer frameworks. | ||
| 2878 | Because of this, the feature is backfilled and thus | ||
| 2879 | enabled for all distros through the | ||
| 2880 | <code class="filename">DISTRO_FEATURES_BACKFILL</code> | ||
| 2881 | variable in the <code class="filename">meta/conf/bitbake.conf</code> file. | ||
| 2882 | However, your distro needs to disable the feature. | ||
| 2883 | You can disable the feature without affecting | ||
| 2884 | other existing distro configurations that need PulseAudio support | ||
| 2885 | by adding "pulseaudio" to | ||
| 2886 | <code class="filename">DISTRO_FEATURES_BACKFILL_CONSIDERED</code> | ||
| 2887 | in your distro's <code class="filename">.conf</code> file. | ||
| 2888 | Adding the feature to this variable when it also | ||
| 2889 | exists in the <code class="filename">DISTRO_FEATURES_BACKFILL</code> | ||
| 2890 | variable prevents the build system from adding the feature to | ||
| 2891 | your configuration's <code class="filename">DISTRO_FEATURES</code>, effectively disabling | ||
| 2892 | the feature for that particular distro.</p></li><li class="listitem"><p><span class="emphasis"><em>The "rtc" machine feature option</em></span>: | ||
| 2893 | Previously, real time clock (RTC) support was enabled for all | ||
| 2894 | target devices. | ||
| 2895 | Because of this, the feature is backfilled and thus enabled | ||
| 2896 | for all machines through the <code class="filename">MACHINE_FEATURES_BACKFILL</code> | ||
| 2897 | variable in the <code class="filename">meta/conf/bitbake.conf</code> file. | ||
| 2898 | However, your target device does not have this capability. | ||
| 2899 | You can disable RTC support for your device without | ||
| 2900 | affecting other machines that need RTC support | ||
| 2901 | by adding the feature to your machine's | ||
| 2902 | <code class="filename">MACHINE_FEATURES_BACKFILL_CONSIDERED</code> | ||
| 2903 | list in the machine's <code class="filename">.conf</code> file. | ||
| 2904 | Adding the feature to this variable when it also | ||
| 2905 | exists in the <code class="filename">MACHINE_FEATURES_BACKFILL</code> | ||
| 2906 | variable prevents the build system from adding the feature to | ||
| 2907 | your configuration's <code class="filename">MACHINE_FEATURES</code>, effectively | ||
| 2908 | disabling RTC support for that particular machine.</p></li></ul></div><p> | ||
| 2909 | </p></div></div> | ||
| 2910 | |||
| 2911 | <div class="chapter" title="Chapter 10. Variables Glossary"><div class="titlepage"><div><div><h2 class="title"><a id="ref-variables-glos"></a>Chapter 10. Variables Glossary</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="glossary"><a href="#ref-variables-glossary">Glossary</a></span></dt></dl></div><p> | ||
| 2912 | This chapter lists common variables used in the OpenEmbedded build system and gives an overview | ||
| 2913 | of their function and contents. | ||
| 2914 | </p><div class="glossary" title="Glossary"><div class="titlepage"><div><div><h2 class="title"><a id="ref-variables-glossary"></a>Glossary</h2></div></div></div><p> | ||
| 2915 | <a class="link" href="#var-ALLOW_EMPTY" title="ALLOW_EMPTY">A</a> | ||
| 2916 | <a class="link" href="#var-B" title="B">B</a> | ||
| 2917 | <a class="link" href="#var-CFLAGS" title="CFLAGS">C</a> | ||
| 2918 | <a class="link" href="#var-D" title="D">D</a> | ||
| 2919 | <a class="link" href="#var-ENABLE_BINARY_LOCALE_GENERATION" title="ENABLE_BINARY_LOCALE_GENERATION">E</a> | ||
| 2920 | <a class="link" href="#var-FILES" title="FILES">F</a> | ||
| 2921 | |||
| 2922 | <a class="link" href="#var-HOMEPAGE" title="HOMEPAGE">H</a> | ||
| 2923 | <a class="link" href="#var-IMAGE_FEATURES" title="IMAGE_FEATURES">I</a> | ||
| 2924 | |||
| 2925 | <a class="link" href="#var-KBRANCH" title="KBRANCH">K</a> | ||
| 2926 | <a class="link" href="#var-LAYERDIR" title="LAYERDIR">L</a> | ||
| 2927 | <a class="link" href="#var-MACHINE" title="MACHINE">M</a> | ||
| 2928 | |||
| 2929 | <a class="link" href="#var-OE_TERMINAL" title="OE_TERMINAL">O</a> | ||
| 2930 | <a class="link" href="#var-P" title="P">P</a> | ||
| 2931 | |||
| 2932 | <a class="link" href="#var-RCONFLICTS" title="RCONFLICTS">R</a> | ||
| 2933 | <a class="link" href="#var-S" title="S">S</a> | ||
| 2934 | <a class="link" href="#var-T" title="T">T</a> | ||
| 2935 | |||
| 2936 | |||
| 2937 | <a class="link" href="#var-WORKDIR" title="WORKDIR">W</a> | ||
| 2938 | |||
| 2939 | |||
| 2940 | |||
| 2941 | </p><div class="glossdiv" title="A"><h3 class="title">A</h3><dl><dt><a id="var-ALLOW_EMPTY"></a>ALLOW_EMPTY</dt><dd><p> | ||
| 2942 | Specifies if an output package should still be produced if it is empty. | ||
| 2943 | By default, BitBake does not produce empty packages. | ||
| 2944 | This default behavior can cause issues when there is an | ||
| 2945 | <a class="link" href="#var-RDEPENDS" title="RDEPENDS"><code class="filename">RDEPENDS</code></a> or | ||
| 2946 | some other runtime hard-requirement on the existence of the package. | ||
| 2947 | </p><p> | ||
| 2948 | Like all package-controlling variables, you must always use them in | ||
| 2949 | conjunction with a package name override. | ||
| 2950 | Here is an example: | ||
| 2951 | </p><pre class="literallayout"> | ||
| 2952 | ALLOW_EMPTY_${PN} = "1" | ||
| 2953 | </pre><p> | ||
| 2954 | </p></dd><dt><a id="var-AUTHOR"></a>AUTHOR</dt><dd><p>The email address used to contact the original author or authors in | ||
| 2955 | order to send patches, forward bugs, etc.</p></dd><dt><a id="var-AUTOREV"></a>AUTOREV</dt><dd><p>When <code class="filename"><a class="link" href="#var-SRCREV" title="SRCREV">SRCREV</a></code> | ||
| 2956 | is set to the value of this variable, it specifies that the latest | ||
| 2957 | source revision in the repository should be used. Here is an example: | ||
| 2958 | </p><pre class="literallayout"> | ||
| 2959 | SRCREV = "${AUTOREV}" | ||
| 2960 | </pre><p> | ||
| 2961 | </p></dd></dl></div><div class="glossdiv" title="B"><h3 class="title">B</h3><dl><dt><a id="var-B"></a>B</dt><dd><p> | ||
| 2962 | The <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>. | ||
| 2963 | The OpenEmbedded build system places generated objects into the Build Directory | ||
| 2964 | during a recipe's build process. | ||
| 2965 | By default, this directory is the same as the <a class="link" href="#var-S" title="S"><code class="filename">S</code></a> | ||
| 2966 | directory: | ||
| 2967 | </p><pre class="literallayout"> | ||
| 2968 | B = ${WORKDIR}/${BPN}/{PV}/ | ||
| 2969 | </pre><p> | ||
| 2970 | You can separate the (<code class="filename">S</code>) directory and the directory pointed to | ||
| 2971 | by the <code class="filename">B</code> variable. | ||
| 2972 | Most autotools-based recipes support separating these directories. | ||
| 2973 | The build system defaults to using separate directories for <code class="filename">gcc</code> | ||
| 2974 | and some kernel recipes. | ||
| 2975 | </p></dd><dt><a id="var-BAD_RECOMMENDATIONS"></a>BAD_RECOMMENDATIONS</dt><dd><p> | ||
| 2976 | A list of packages not to install despite being recommended by a recipe. | ||
| 2977 | Support for this variable exists only when using the | ||
| 2978 | <code class="filename">ipk</code> packaging backend. | ||
| 2979 | </p></dd><dt><a id="var-BB_DISKMON_DIRS"></a>BB_DISKMON_DIRS</dt><dd><p> | ||
| 2980 | Monitors disk space and available inodes during the build | ||
| 2981 | and allows you to control the build based on these | ||
| 2982 | parameters. | ||
| 2983 | </p><p> | ||
| 2984 | Disk space monitoring is disabled by default. | ||
| 2985 | To enable monitoring, add the <code class="filename">BB_DISKMON_DIRS</code> | ||
| 2986 | variable to your <code class="filename">conf/local.conf</code> file found in the | ||
| 2987 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>. | ||
| 2988 | Use the following form: | ||
| 2989 | </p><pre class="literallayout"> | ||
| 2990 | BB_DISKMON_DIRS = "<action>,<dir>,<threshold> [...]" | ||
| 2991 | |||
| 2992 | where: | ||
| 2993 | |||
| 2994 | <action> is: | ||
| 2995 | ABORT: Immediately abort the build when | ||
| 2996 | a threshold is broken. | ||
| 2997 | STOPTASKS: Stop the build after the currently | ||
| 2998 | executing tasks have finished when | ||
| 2999 | a threshold is broken. | ||
| 3000 | WARN: Issue a warning but continue the | ||
| 3001 | build when a threshold is broken. | ||
| 3002 | Subsequent warnings are issued as | ||
| 3003 | defined by the | ||
| 3004 | <a class="link" href="#var-BB_DISKMON_WARNINTERVAL" title="BB_DISKMON_WARNINTERVAL">BB_DISKMON_WARNINTERVAL</a> variable, | ||
| 3005 | which must be defined in the | ||
| 3006 | conf/local.conf file. | ||
| 3007 | |||
| 3008 | <dir> is: | ||
| 3009 | Any directory you choose. You can specify one or | ||
| 3010 | more directories to monitor by separating the | ||
| 3011 | groupings with a space. If two directories are | ||
| 3012 | on the same device, only the first directory | ||
| 3013 | is monitored. | ||
| 3014 | |||
| 3015 | <threshold> is: | ||
| 3016 | Either the minimum available disk space, | ||
| 3017 | the minimum number of free inodes, or | ||
| 3018 | both. You must specify at least one. To | ||
| 3019 | omit one or the other, simply omit the value. | ||
| 3020 | Specify the threshold using G, M, K for Gbytes, | ||
| 3021 | Mbytes, and Kbytes, respectively. If you do | ||
| 3022 | not specify G, M, or K, Kbytes is assumed by | ||
| 3023 | default. Do not use GB, MB, or KB. | ||
| 3024 | </pre><p> | ||
| 3025 | </p><p> | ||
| 3026 | Here are some examples: | ||
| 3027 | </p><pre class="literallayout"> | ||
| 3028 | BB_DISKMON_DIRS = "ABORT,${TMPDIR},1G,100K WARN,${SSTATE_DIR},1G,100K" | ||
| 3029 | BB_DISKMON_DIRS = "STOPTASKS,${TMPDIR},1G" | ||
| 3030 | BB_DISKMON_DIRS = "ABORT,${TMPDIR},,100K" | ||
| 3031 | </pre><p> | ||
| 3032 | The first example works only if you also provide | ||
| 3033 | the <a class="link" href="#var-BB_DISKMON_WARNINTERVAL" title="BB_DISKMON_WARNINTERVAL"><code class="filename">BB_DISKMON_WARNINTERVAL</code></a> variable | ||
| 3034 | in the <code class="filename">conf/local.conf</code>. | ||
| 3035 | This example causes the build system to immediately | ||
| 3036 | abort when either the disk space in <code class="filename">${TMPDIR}</code> drops | ||
| 3037 | below 1 Gbyte or the available free inodes drops below | ||
| 3038 | 100 Kbytes. | ||
| 3039 | Because two directories are provided with the variable, the | ||
| 3040 | build system also issue a | ||
| 3041 | warning when the disk space in the | ||
| 3042 | <code class="filename">${SSTATE_DIR}</code> directory drops | ||
| 3043 | below 1 Gbyte or the number of free inodes drops | ||
| 3044 | below 100 Kbytes. | ||
| 3045 | Subsequent warnings are issued during intervals as | ||
| 3046 | defined by the <code class="filename">BB_DISKMON_WARNINTERVAL</code> | ||
| 3047 | variable. | ||
| 3048 | </p><p> | ||
| 3049 | The second example stops the build after all currently | ||
| 3050 | executing tasks complete when the minimum disk space | ||
| 3051 | in the <code class="filename">${TMPDIR}</code> directory drops | ||
| 3052 | below 1 Gbyte. | ||
| 3053 | No disk monitoring occurs for the free inodes in this case. | ||
| 3054 | </p><p> | ||
| 3055 | The final example immediately aborts the build when the | ||
| 3056 | number of free inodes in the <code class="filename">${TMPDIR}</code> directory | ||
| 3057 | drops below 100 Kbytes. | ||
| 3058 | No disk space monitoring for the directory itself occurs | ||
| 3059 | in this case. | ||
| 3060 | </p></dd><dt><a id="var-BB_DISKMON_WARNINTERVAL"></a>BB_DISKMON_WARNINTERVAL</dt><dd><p> | ||
| 3061 | Defines the disk space and free inode warning intervals. | ||
| 3062 | To set these intervals, define the variable in your | ||
| 3063 | <code class="filename">conf/local.conf</code> file in the | ||
| 3064 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>. | ||
| 3065 | </p><p> | ||
| 3066 | If you are going to use the | ||
| 3067 | <code class="filename">BB_DISKMON_WARNINTERVAL</code> variable, you must | ||
| 3068 | also use the | ||
| 3069 | <a class="link" href="#var-BB_DISKMON_DIRS" title="BB_DISKMON_DIRS"><code class="filename">BB_DISKMON_DIRS</code></a> variable | ||
| 3070 | and define its action as "WARN". | ||
| 3071 | During the build, subsequent warnings are issued each time | ||
| 3072 | disk space or number of free inodes further reduces by | ||
| 3073 | the respective interval. | ||
| 3074 | </p><p> | ||
| 3075 | If you do not provide a <code class="filename">BB_DISKMON_WARNINTERVAL</code> | ||
| 3076 | variable and you do use <code class="filename">BB_DISKMON_DIRS</code> with | ||
| 3077 | the "WARN" action, the disk monitoring interval defaults to | ||
| 3078 | the following: | ||
| 3079 | </p><pre class="literallayout"> | ||
| 3080 | BB_DISKMON_WARNINTERVAL = "50M,5K" | ||
| 3081 | </pre><p> | ||
| 3082 | </p><p> | ||
| 3083 | When specifying the variable in your configuration file, | ||
| 3084 | use the following form: | ||
| 3085 | </p><pre class="literallayout"> | ||
| 3086 | BB_DISKMON_WARNINTERVAL = "<disk_space_interval>,<disk_inode_interval>" | ||
| 3087 | |||
| 3088 | where: | ||
| 3089 | |||
| 3090 | <disk_space_interval> is: | ||
| 3091 | An interval of memory expressed in either | ||
| 3092 | G, M, or K for Gbytes, Mbytes, or Kbytes, | ||
| 3093 | respectively. You cannot use GB, MB, or KB. | ||
| 3094 | |||
| 3095 | <disk_inode_interval> is: | ||
| 3096 | An interval of free inodes expressed in either | ||
| 3097 | G, M, or K for Gbytes, Mbytes, or Kbytes, | ||
| 3098 | respectively. You cannot use GB, MB, or KB. | ||
| 3099 | </pre><p> | ||
| 3100 | </p><p> | ||
| 3101 | Here is an example: | ||
| 3102 | </p><pre class="literallayout"> | ||
| 3103 | BB_DISKMON_DIRS = "WARN,${SSTATE_DIR},1G,100K" | ||
| 3104 | BB_DISKMON_WARNINTERVAL = "50M,5K" | ||
| 3105 | </pre><p> | ||
| 3106 | These variables cause the OpenEmbedded build system to | ||
| 3107 | issue subsequent warnings each time the available | ||
| 3108 | disk space further reduces by 50 Mbytes or the number | ||
| 3109 | of free inodes further reduces by 5 Kbytes in the | ||
| 3110 | <code class="filename">${SSTATE_DIR}</code> directory. | ||
| 3111 | Subsequent warnings based on the interval occur each time | ||
| 3112 | a respective interval is reached beyond the intial warning | ||
| 3113 | (i.e. 1 Gbytes and 100 Kbytes). | ||
| 3114 | </p></dd><dt><a id="var-BBCLASSEXTEND"></a>BBCLASSEXTEND</dt><dd><p> | ||
| 3115 | Allows you to extend a recipe so that it builds variants of the software. | ||
| 3116 | Common variants for recipes exist such as "natives" like <code class="filename">quilt-native</code>, | ||
| 3117 | which is a copy of quilt built to run on the build system; | ||
| 3118 | "crosses" such as <code class="filename">gcc-cross</code>, | ||
| 3119 | which is a compiler built to run on the build machine but produces binaries | ||
| 3120 | that run on the target <a class="link" href="#var-MACHINE" title="MACHINE"><code class="filename">MACHINE</code></a>; | ||
| 3121 | "nativesdk", which targets the SDK machine instead of <code class="filename">MACHINE</code>; | ||
| 3122 | and "mulitlibs" in the form "<code class="filename">multilib:<multilib_name></code>". | ||
| 3123 | </p><p> | ||
| 3124 | To build a different variant of the recipe with a minimal amount of code, it usually | ||
| 3125 | is as simple as adding the following to your recipe: | ||
| 3126 | </p><pre class="literallayout"> | ||
| 3127 | BBCLASSEXTEND =+ "native nativesdk" | ||
| 3128 | BBCLASSEXTEND =+ "multilib:<multilib_name>" | ||
| 3129 | </pre><p> | ||
| 3130 | </p></dd><dt><a id="var-BBMASK"></a>BBMASK</dt><dd><p>Prevents BitBake from processing recipes and recipe append files. | ||
| 3131 | You can use the <code class="filename">BBMASK</code> variable to "hide" | ||
| 3132 | these <code class="filename">.bb</code> and <code class="filename">.bbappend</code> files. | ||
| 3133 | BitBake ignores any recipe or recipe append files that match the expression. | ||
| 3134 | It is as if BitBake does not see them at all. | ||
| 3135 | Consequently, matching files are not parsed or otherwise used by | ||
| 3136 | BitBake.</p><p>The value you provide is passed to python's regular expression compiler. | ||
| 3137 | For complete syntax information, see python's documentation at | ||
| 3138 | <a class="ulink" href="http://docs.python.org/release/2.3/lib/re-syntax.html" target="_top">http://docs.python.org/release/2.3/lib/re-syntax.html</a>. | ||
| 3139 | The expression is compared against the full paths to the files. | ||
| 3140 | For example, the following uses a complete regular expression to tell | ||
| 3141 | BitBake to ignore all recipe and recipe append files in the | ||
| 3142 | <code class="filename">.*/meta-ti/recipes-misc/</code> directory: | ||
| 3143 | </p><pre class="literallayout"> | ||
| 3144 | BBMASK = ".*/meta-ti/recipes-misc/" | ||
| 3145 | </pre><p>Use the <code class="filename">BBMASK</code> variable from within the | ||
| 3146 | <code class="filename">conf/local.conf</code> file found | ||
| 3147 | in the <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>.</p></dd><dt><a id="var-BB_NUMBER_THREADS"></a>BB_NUMBER_THREADS</dt><dd><p>The maximum number of tasks BitBake should run in parallel at any one time. | ||
| 3148 | If your host development system supports multiple cores a good rule of thumb | ||
| 3149 | is to set this variable to twice the number of cores.</p></dd><dt><a id="var-BBFILE_COLLECTIONS"></a>BBFILE_COLLECTIONS</dt><dd><p>Lists the names of configured layers. | ||
| 3150 | These names are used to find the other <code class="filename">BBFILE_*</code> | ||
| 3151 | variables. | ||
| 3152 | Typically, each layer will append its name to this variable in its | ||
| 3153 | <code class="filename">conf/layer.conf</code> file. | ||
| 3154 | </p></dd><dt><a id="var-BBFILE_PATTERN"></a>BBFILE_PATTERN</dt><dd><p>Variable that expands to match files from <code class="filename">BBFILES</code> in a particular layer. | ||
| 3155 | This variable is used in the <code class="filename">conf/layer.conf</code> file and must | ||
| 3156 | be suffixed with the name of the specific layer (e.g. | ||
| 3157 | <code class="filename">BBFILE_PATTERN_emenlow</code>).</p></dd><dt><a id="var-BBFILE_PRIORITY"></a>BBFILE_PRIORITY</dt><dd><p>Assigns the priority for recipe files in each layer.</p><p>This variable is useful in situations where the same recipe appears in | ||
| 3158 | more than one layer. | ||
| 3159 | Setting this variable allows you to prioritize a | ||
| 3160 | layer against other layers that contain the same recipe - effectively | ||
| 3161 | letting you control the precedence for the multiple layers. | ||
| 3162 | The precedence established through this variable stands regardless of a | ||
| 3163 | recipe's version (<code class="filename">PV</code> variable). | ||
| 3164 | For example, a layer that has a recipe with a higher <code class="filename">PV</code> value but for | ||
| 3165 | which the <code class="filename">BBFILE_PRIORITY</code> is set to have a lower precedence still has a | ||
| 3166 | lower precedence.</p><p>A larger value for the <code class="filename">BBFILE_PRIORITY</code> variable results in a higher | ||
| 3167 | precedence. | ||
| 3168 | For example, the value 6 has a higher precedence than the value 5. | ||
| 3169 | If not specified, the <code class="filename">BBFILE_PRIORITY</code> variable is set based on layer | ||
| 3170 | dependencies (see the | ||
| 3171 | <code class="filename"><a class="link" href="#var-LAYERDEPENDS" title="LAYERDEPENDS">LAYERDEPENDS</a></code> variable for | ||
| 3172 | more information. | ||
| 3173 | The default priority, if unspecified | ||
| 3174 | for a layer with no dependencies, is the lowest defined priority + 1 | ||
| 3175 | (or 1 if no priorities are defined).</p><div class="tip" title="Tip" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Tip</h3> | ||
| 3176 | You can use the command <code class="filename">bitbake-layers show_layers</code> to list | ||
| 3177 | all configured layers along with their priorities. | ||
| 3178 | </div></dd><dt><a id="var-BBFILES"></a>BBFILES</dt><dd><p>List of recipe files used by BitBake to build software</p></dd><dt><a id="var-BBPATH"></a>BBPATH</dt><dd><p>Used by BitBake to locate <code class="filename">.bbclass</code> and configuration files. | ||
| 3179 | This variable is analogous to the <code class="filename">PATH</code> variable.</p></dd><dt><a id="var-BBINCLUDELOGS"></a>BBINCLUDELOGS</dt><dd><p>Variable that controls how BitBake displays logs on build failure.</p></dd><dt><a id="var-BBLAYERS"></a>BBLAYERS</dt><dd><p>Lists the layers to enable during the build. | ||
| 3180 | This variable is defined in the <code class="filename">bblayers.conf</code> configuration | ||
| 3181 | file in the <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>. | ||
| 3182 | Here is an example: | ||
| 3183 | </p><pre class="literallayout"> | ||
| 3184 | BBLAYERS = " \ | ||
| 3185 | /home/scottrif/poky/meta \ | ||
| 3186 | /home/scottrif/poky/meta-yocto \ | ||
| 3187 | /home/scottrif/poky/meta-yocto-bsp \ | ||
| 3188 | /home/scottrif/poky/meta-mykernel \ | ||
| 3189 | " | ||
| 3190 | |||
| 3191 | BBLAYERS_NON_REMOVABLE ?= " \ | ||
| 3192 | /home/scottrif/poky/meta \ | ||
| 3193 | /home/scottrif/poky/meta-yocto \ | ||
| 3194 | " | ||
| 3195 | </pre><p> | ||
| 3196 | This example enables four layers, one of which is a custom, user-defined layer | ||
| 3197 | named <code class="filename">meta-mykernel</code>. | ||
| 3198 | </p></dd><dt><a id="var-BBLAYERS_NON_REMOVABLE"></a>BBLAYERS_NON_REMOVABLE</dt><dd><p>Lists core layers that cannot be removed from the | ||
| 3199 | <code class="filename">bblayers.conf</code> file. | ||
| 3200 | In order for BitBake to build your image, your | ||
| 3201 | <code class="filename">bblayers.conf</code> file must include the | ||
| 3202 | <code class="filename">meta</code> and <code class="filename">meta-yocto</code> | ||
| 3203 | core layers. | ||
| 3204 | Here is an example that shows these two layers listed in | ||
| 3205 | the <code class="filename">BBLAYERS_NON_REMOVABLE</code> statement: | ||
| 3206 | </p><pre class="literallayout"> | ||
| 3207 | BBLAYERS = " \ | ||
| 3208 | /home/scottrif/poky/meta \ | ||
| 3209 | /home/scottrif/poky/meta-yocto \ | ||
| 3210 | /home/scottrif/poky/meta-yocto-bsp \ | ||
| 3211 | /home/scottrif/poky/meta-mykernel \ | ||
| 3212 | " | ||
| 3213 | |||
| 3214 | BBLAYERS_NON_REMOVABLE ?= " \ | ||
| 3215 | /home/scottrif/poky/meta \ | ||
| 3216 | /home/scottrif/poky/meta-yocto \ | ||
| 3217 | " | ||
| 3218 | </pre><p> | ||
| 3219 | </p></dd><dt><a id="var-BP"></a>BP</dt><dd><p>The base recipe name and version but without any special | ||
| 3220 | recipe name suffix (i.e. <code class="filename">-native</code>, <code class="filename">lib64-</code>, | ||
| 3221 | and so forth). | ||
| 3222 | <code class="filename">BP</code> is comprised of the following: | ||
| 3223 | </p><pre class="literallayout"> | ||
| 3224 | ${BPN}-${PV} | ||
| 3225 | </pre></dd><dt><a id="var-BPN"></a>BPN</dt><dd><p>The bare name of the recipe. | ||
| 3226 | This variable is a version of the <a class="link" href="#var-PN" title="PN"><code class="filename">PN</code></a> variable | ||
| 3227 | but removes common suffixes such as "-native" and "-cross" as well | ||
| 3228 | as removes common prefixes such as multilib's "lib64-" and "lib32-". | ||
| 3229 | The exact list of suffixes removed is specified by the | ||
| 3230 | <a class="link" href="#var-SPECIAL_PKGSUFFIX" title="SPECIAL_PKGSUFFIX"><code class="filename">SPECIAL_PKGSUFFIX</code></a> variable. | ||
| 3231 | The exact list of prefixes removed is specified by the | ||
| 3232 | <a class="link" href="#var-MLPREFIX" title="MLPREFIX"><code class="filename">MLPREFIX</code></a> variable. | ||
| 3233 | Prefixes are removed for multilib and nativesdk cases.</p></dd></dl></div><div class="glossdiv" title="C"><h3 class="title">C</h3><dl><dt><a id="var-CFLAGS"></a>CFLAGS</dt><dd><p> | ||
| 3234 | Flags passed to C compiler for the target system. | ||
| 3235 | This variable evaluates to the same as | ||
| 3236 | <code class="filename"><a class="link" href="#var-TARGET_CFLAGS" title="TARGET_CFLAGS">TARGET_CFLAGS</a></code>. | ||
| 3237 | </p></dd><dt><a id="var-COMBINED_FEATURES"></a>COMBINED_FEATURES</dt><dd><p>A set of features common between | ||
| 3238 | <a class="link" href="#var-MACHINE_FEATURES" title="MACHINE_FEATURES"><code class="filename">MACHINE_FEATURES</code></a> | ||
| 3239 | and <a class="link" href="#var-DISTRO_FEATURES" title="DISTRO_FEATURES"><code class="filename">DISTRO_FEATURES</code></a>. | ||
| 3240 | See the glossary descriptions for these variables for more information.</p></dd><dt><a id="var-COMPATIBLE_MACHINE"></a>COMPATIBLE_MACHINE</dt><dd><p>A regular expression which evaluates to match the machines the recipe | ||
| 3241 | works with. | ||
| 3242 | It stops recipes being run on machines for which they are not compatible. | ||
| 3243 | This is particularly useful with kernels. | ||
| 3244 | It also helps to increase parsing speed as further parsing of the recipe is skipped | ||
| 3245 | if it is found the current machine is not compatible.</p></dd><dt><a id="var-CONFFILES"></a>CONFFILES</dt><dd><p> | ||
| 3246 | Identifies editable or configurable files that are part of a package. | ||
| 3247 | If the Package Management System (PMS) is being used to update | ||
| 3248 | packages on the target system, it is possible that | ||
| 3249 | configuration files you have changed after the original installation | ||
| 3250 | and that you now want to remain unchanged are overwritten. | ||
| 3251 | In other words, editable files might exist in the package that you do not | ||
| 3252 | want reset as part of the package update process. | ||
| 3253 | You can use the <code class="filename">CONFFILES</code> variable to list the files in the | ||
| 3254 | package that you wish to prevent the PMS from overwriting during this update process. | ||
| 3255 | </p><p> | ||
| 3256 | To use the <code class="filename">CONFFILES</code> variable, provide a package name | ||
| 3257 | override that identifies the resulting package. | ||
| 3258 | Then, provide a space-separated list of files. | ||
| 3259 | Here is an example: | ||
| 3260 | </p><pre class="literallayout"> | ||
| 3261 | CONFFILES_${PN} += "${sysconfdir}/file1 \ | ||
| 3262 | ${sysconfdir}/file2 ${sysconfdir}/file3" | ||
| 3263 | </pre><p> | ||
| 3264 | </p><p> | ||
| 3265 | A relationship exists between the <code class="filename">CONFFILES</code> and | ||
| 3266 | <code class="filename"><a class="link" href="#var-FILES" title="FILES">FILES</a></code> variables. | ||
| 3267 | The files listed within <code class="filename">CONFFILES</code> must be a subset of | ||
| 3268 | the files listed within <code class="filename">FILES</code>. | ||
| 3269 | Because the configuration files you provide with <code class="filename">CONFFILES</code> | ||
| 3270 | are simply being identified so that the PMS will not overwrite them, | ||
| 3271 | it makes sense that | ||
| 3272 | the files must already be included as part of the package through the | ||
| 3273 | <code class="filename">FILES</code> variable. | ||
| 3274 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 3275 | When specifying paths as part of the <code class="filename">CONFFILES</code> variable, | ||
| 3276 | it is good practice to use appropriate path variables. | ||
| 3277 | For example, <code class="filename">${sysconfdir}</code> rather than | ||
| 3278 | <code class="filename">/etc</code> or <code class="filename">${bindir}</code> rather | ||
| 3279 | than <code class="filename">/usr/bin</code>. | ||
| 3280 | You can find a list of these variables at the top of the | ||
| 3281 | <code class="filename">/meta/conf/bitbake.conf</code> file in the | ||
| 3282 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 3283 | </div></dd><dt><a id="var-CONFIG_SITE"></a>CONFIG_SITE</dt><dd><p> | ||
| 3284 | A list of files that contains <code class="filename">autoconf</code> test results relevant | ||
| 3285 | to the current build. | ||
| 3286 | This variable is used by the Autotools utilities when running | ||
| 3287 | <code class="filename">configure</code>. | ||
| 3288 | </p></dd><dt><a id="var-CORE_IMAGE_EXTRA_INSTALL"></a>CORE_IMAGE_EXTRA_INSTALL</dt><dd><p> | ||
| 3289 | Specifies the list of packages to be added to the image. | ||
| 3290 | This variable should only be set in the <code class="filename">local.conf</code> | ||
| 3291 | configuration file found in the | ||
| 3292 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>. | ||
| 3293 | </p><p> | ||
| 3294 | This variable replaces <code class="filename">POKY_EXTRA_INSTALL</code>, which is no longer supported. | ||
| 3295 | </p></dd></dl></div><div class="glossdiv" title="D"><h3 class="title">D</h3><dl><dt><a id="var-D"></a>D</dt><dd><p>The destination directory.</p></dd><dt><a id="var-DEBUG_BUILD"></a>DEBUG_BUILD</dt><dd><p> | ||
| 3296 | Specifies to build packages with debugging information. | ||
| 3297 | This influences the value of the | ||
| 3298 | <code class="filename"><a class="link" href="#var-SELECTED_OPTIMIZATION" title="SELECTED_OPTIMIZATION">SELECTED_OPTIMIZATION</a></code> | ||
| 3299 | variable. | ||
| 3300 | </p></dd><dt><a id="var-DEBUG_OPTIMIZATION"></a>DEBUG_OPTIMIZATION</dt><dd><p> | ||
| 3301 | The options to pass in | ||
| 3302 | <code class="filename"><a class="link" href="#var-TARGET_CFLAGS" title="TARGET_CFLAGS">TARGET_CFLAGS</a></code> | ||
| 3303 | and <code class="filename"><a class="link" href="#var-CFLAGS" title="CFLAGS">CFLAGS</a></code> when compiling | ||
| 3304 | a system for debugging. | ||
| 3305 | This variable defaults to "-O -fno-omit-frame-pointer -g". | ||
| 3306 | </p></dd><dt><a id="var-DEFAULT_PREFERENCE"></a>DEFAULT_PREFERENCE</dt><dd><p>Specifies the priority of recipes.</p></dd><dt><a id="var-DEPENDS"></a>DEPENDS</dt><dd><p> | ||
| 3307 | Lists a recipe's build-time dependencies | ||
| 3308 | (i.e. other recipe files). | ||
| 3309 | The system ensures that all the dependencies listed | ||
| 3310 | have been built and have their contents in the appropriate | ||
| 3311 | sysroots before the recipe's configure task is executed. | ||
| 3312 | </p></dd><dt><a id="var-DESCRIPTION"></a>DESCRIPTION</dt><dd><p>The package description used by package managers. | ||
| 3313 | If not set, <code class="filename">DESCRIPTION</code> takes | ||
| 3314 | the value of the | ||
| 3315 | <a class="link" href="#var-SUMMARY" title="SUMMARY"><code class="filename">SUMMARY</code></a> | ||
| 3316 | variable. | ||
| 3317 | </p></dd><dt><a id="var-DESTDIR"></a>DESTDIR</dt><dd><p>the destination directory.</p></dd><dt><a id="var-DISTRO"></a>DISTRO</dt><dd><p> | ||
| 3318 | The short name of the distribution. | ||
| 3319 | This variable corresponds to a file with the | ||
| 3320 | extension <code class="filename">.conf</code> | ||
| 3321 | located in a <code class="filename">conf/distro</code> directory | ||
| 3322 | within the metadata that contains the distribution configuration. | ||
| 3323 | The | ||
| 3324 | value must not contain spaces, and is typically all lower-case. | ||
| 3325 | </p><p> | ||
| 3326 | If the variable is blank, a set of default configuration | ||
| 3327 | will be used, which is specified | ||
| 3328 | within <code class="filename">meta/conf/distro/defaultsetup.conf</code>. | ||
| 3329 | </p></dd><dt><a id="var-DISTRO_EXTRA_RDEPENDS"></a>DISTRO_EXTRA_RDEPENDS</dt><dd><p> | ||
| 3330 | Specifies a list of distro-specific packages to add to all images. | ||
| 3331 | This variable takes affect through | ||
| 3332 | <code class="filename">packagegroup-base</code> so the | ||
| 3333 | variable only really applies to the more full-featured | ||
| 3334 | images that include <code class="filename">packagegroup-base</code>. | ||
| 3335 | You can use this variable to keep distro policy out of | ||
| 3336 | generic images. | ||
| 3337 | As with all other distro variables, you set this variable | ||
| 3338 | in the distro <code class="filename">.conf</code> file. | ||
| 3339 | </p></dd><dt><a id="var-DISTRO_EXTRA_RRECOMMENDS"></a>DISTRO_EXTRA_RRECOMMENDS</dt><dd><p> | ||
| 3340 | Specifies a list of distro-specific packages to add to all images | ||
| 3341 | if the packages exist. | ||
| 3342 | The packages might not exist or be empty (e.g. kernel modules). | ||
| 3343 | The list of packages are automatically installed but can be | ||
| 3344 | removed by the user. | ||
| 3345 | </p></dd><dt><a id="var-DISTRO_FEATURES"></a>DISTRO_FEATURES</dt><dd><p>The features enabled for the distribution. | ||
| 3346 | For a list of features supported by the Yocto Project as shipped, | ||
| 3347 | see the "<a class="link" href="#ref-features-distro" title="9.1. Distro">Distro</a>" | ||
| 3348 | section. | ||
| 3349 | </p></dd><dt><a id="var-DISTRO_FEATURES_BACKFILL"></a>DISTRO_FEATURES_BACKFILL</dt><dd><p>Features to be added to | ||
| 3350 | <code class="filename"><a class="link" href="#var-DISTRO_FEATURES" title="DISTRO_FEATURES">DISTRO_FEATURES</a></code> | ||
| 3351 | if not also present in | ||
| 3352 | <code class="filename"><a class="link" href="#var-DISTRO_FEATURES_BACKFILL_CONSIDERED" title="DISTRO_FEATURES_BACKFILL_CONSIDERED">DISTRO_FEATURES_BACKFILL_CONSIDERED</a></code>. | ||
| 3353 | </p><p> | ||
| 3354 | This variable is set in the <code class="filename">meta/conf/bitbake.conf</code> file. | ||
| 3355 | It is not intended to be user-configurable. | ||
| 3356 | It is best to just reference the variable to see which distro features are | ||
| 3357 | being backfilled for all distro configurations. | ||
| 3358 | See the <a class="link" href="#ref-features-backfill" title="9.4. Feature Backfilling">Feature backfilling</a> section for | ||
| 3359 | more information. | ||
| 3360 | </p></dd><dt><a id="var-DISTRO_FEATURES_BACKFILL_CONSIDERED"></a>DISTRO_FEATURES_BACKFILL_CONSIDERED</dt><dd><p>Features from | ||
| 3361 | <code class="filename"><a class="link" href="#var-DISTRO_FEATURES_BACKFILL" title="DISTRO_FEATURES_BACKFILL">DISTRO_FEATURES_BACKFILL</a></code> | ||
| 3362 | that should not backfilled (i.e. added to | ||
| 3363 | <code class="filename"><a class="link" href="#var-DISTRO_FEATURES" title="DISTRO_FEATURES">DISTRO_FEATURES</a></code>) | ||
| 3364 | during the build. | ||
| 3365 | See the "<a class="link" href="#ref-features-backfill" title="9.4. Feature Backfilling">Feature Backfilling</a>" section for | ||
| 3366 | more information. | ||
| 3367 | </p></dd><dt><a id="var-DISTRO_NAME"></a>DISTRO_NAME</dt><dd><p>The long name of the distribution.</p></dd><dt><a id="var-DISTRO_PN_ALIAS"></a>DISTRO_PN_ALIAS</dt><dd><p>Alias names used for the recipe in various Linux distributions.</p><p>See the | ||
| 3368 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#usingpoky-configuring-DISTRO_PN_ALIAS" target="_top">Handling | ||
| 3369 | a Package Name Alias</a>" section in the Yocto Project Development | ||
| 3370 | Manual for more information.</p></dd><dt><a id="var-DISTRO_VERSION"></a>DISTRO_VERSION</dt><dd><p>the version of the distribution.</p></dd><dt><a id="var-DL_DIR"></a>DL_DIR</dt><dd><p> | ||
| 3371 | The central download directory used by the build process to store downloads. | ||
| 3372 | You can set this directory by defining the <code class="filename">DL_DIR</code> | ||
| 3373 | variable in the <code class="filename">/conf/local.conf</code> file. | ||
| 3374 | This directory is self-maintaining and you should not have | ||
| 3375 | to touch it. | ||
| 3376 | By default, the directory is <code class="filename">downloads</code> in the | ||
| 3377 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>. | ||
| 3378 | </p><pre class="literallayout"> | ||
| 3379 | #DL_DIR ?= "${TOPDIR}/downloads" | ||
| 3380 | </pre><p> | ||
| 3381 | To specify a different download directory, simply uncomment the line | ||
| 3382 | and provide your directory. | ||
| 3383 | </p><p> | ||
| 3384 | During a first build, the system downloads many different source code | ||
| 3385 | tarballs from various upstream projects. | ||
| 3386 | Downloading can take a while, particularly if your network | ||
| 3387 | connection is slow. | ||
| 3388 | Tarballs are all stored in the directory defined by | ||
| 3389 | <code class="filename">DL_DIR</code> and the build system looks there first | ||
| 3390 | to find source tarballs. | ||
| 3391 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 3392 | When wiping and rebuilding, you can preserve this directory to speed | ||
| 3393 | up this part of subsequent builds. | ||
| 3394 | </div><p> | ||
| 3395 | </p><p> | ||
| 3396 | You can safely share this directory between multiple builds on the | ||
| 3397 | same development machine. | ||
| 3398 | For additional information on how the build process gets source files | ||
| 3399 | when working behind a firewall or proxy server, see the | ||
| 3400 | "<a class="link" href="#how-does-the-yocto-project-obtain-source-code-and-will-it-work-behind-my-firewall-or-proxy-server">FAQ</a>" | ||
| 3401 | chapter. | ||
| 3402 | </p></dd></dl></div><div class="glossdiv" title="E"><h3 class="title">E</h3><dl><dt><a id="var-ENABLE_BINARY_LOCALE_GENERATION"></a>ENABLE_BINARY_LOCALE_GENERATION</dt><dd><p></p><p>Variable that controls which locales for <code class="filename">eglibc</code> are | ||
| 3403 | to be generated during the build (useful if the target device has 64Mbytes | ||
| 3404 | of RAM or less).</p></dd><dt><a id="var-EXTENDPE"></a>EXTENDPE</dt><dd><p> | ||
| 3405 | Used with file and pathnames to create a prefix for a recipe's | ||
| 3406 | version based on the recipe's | ||
| 3407 | <a class="link" href="#var-PE" title="PE"><code class="filename">PE</code></a> value. | ||
| 3408 | If <code class="filename">PE</code> is set and greater than zero for a recipe, | ||
| 3409 | <code class="filename">EXTENDPE</code> becomes that value (e.g if | ||
| 3410 | <code class="filename">PE</code> is equal to "1" then <code class="filename">EXTENDPE</code> | ||
| 3411 | becomes "1_"). | ||
| 3412 | If a recipe's <code class="filename">PE</code> is not set (the default) or is equal to | ||
| 3413 | zero, <code class="filename">EXTENDPE</code> becomes "".</p><p>See the <a class="link" href="#var-STAMP" title="STAMP"><code class="filename">STAMP</code></a> | ||
| 3414 | variable for an example. | ||
| 3415 | </p></dd><dt><a id="var-EXTRA_IMAGE_FEATURES"></a>EXTRA_IMAGE_FEATURES</dt><dd><p>Allows extra packages to be added to the generated images. | ||
| 3416 | You set this variable in the <code class="filename">local.conf</code> | ||
| 3417 | configuration file. | ||
| 3418 | Note that some image features are also added using the | ||
| 3419 | <code class="filename"><a class="link" href="#var-IMAGE_FEATURES" title="IMAGE_FEATURES">IMAGE_FEATURES</a></code> | ||
| 3420 | variable generally configured in image recipes. | ||
| 3421 | You can use this variable to add more features in addition to those. | ||
| 3422 | Here are some examples of features you can add:</p><pre class="literallayout"> | ||
| 3423 | "dbg-pkgs" - Adds -dbg packages for all installed packages | ||
| 3424 | including symbol information for debugging and | ||
| 3425 | profiling. | ||
| 3426 | |||
| 3427 | "dev-pkgs" - Adds -dev packages for all installed packages. | ||
| 3428 | This is useful if you want to develop against | ||
| 3429 | the libraries in the image. | ||
| 3430 | |||
| 3431 | "tools-sdk" - Adds development tools such as gcc, make, | ||
| 3432 | pkgconfig and so forth. | ||
| 3433 | |||
| 3434 | "tools-debug" - Adds debugging tools such as gdb and | ||
| 3435 | strace. | ||
| 3436 | |||
| 3437 | "tools-profile" - Adds profiling tools such as oprofile, | ||
| 3438 | exmap, lttng and valgrind (x86 only). | ||
| 3439 | |||
| 3440 | "tools-testapps" - Adds useful testing tools such as | ||
| 3441 | ts_print, aplay, arecord and so | ||
| 3442 | forth. | ||
| 3443 | |||
| 3444 | "debug-tweaks" - Makes an image suitable for development. | ||
| 3445 | For example, ssh root access has a blank | ||
| 3446 | password. You should remove this feature | ||
| 3447 | before you produce a production image. | ||
| 3448 | </pre><p>There are other valid features too, see the | ||
| 3449 | <a class="link" href="#ref-features-image" title="9.3. Images">Images</a> | ||
| 3450 | section for more details.</p></dd><dt><a id="var-EXTRA_IMAGEDEPENDS"></a>EXTRA_IMAGEDEPENDS</dt><dd><p>A list of recipes to be built that do not provide packages to be installed in | ||
| 3451 | the root filesystem. | ||
| 3452 | </p><p>Sometimes a recipe is required to build the final image but is not | ||
| 3453 | needed in the root filesystem. | ||
| 3454 | You can use the <code class="filename">EXTRA_IMAGEDEPENDS</code> variable to | ||
| 3455 | list these recipes and thus, specify the dependencies. | ||
| 3456 | A typical example is a required bootloader in a machine configuration. | ||
| 3457 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 3458 | To add packages to the root filesystem, see the various | ||
| 3459 | <code class="filename">*DEPENDS</code> and <code class="filename">*RECOMMENDS</code> | ||
| 3460 | variables. | ||
| 3461 | </div></dd><dt><a id="var-EXTRA_OECMAKE"></a>EXTRA_OECMAKE</dt><dd><p>Additional <code class="filename">cmake</code> options.</p></dd><dt><a id="var-EXTRA_OECONF"></a>EXTRA_OECONF</dt><dd><p>Additional <code class="filename">configure</code> script options.</p></dd><dt><a id="var-EXTRA_OEMAKE"></a>EXTRA_OEMAKE</dt><dd><p>Additional GNU <code class="filename">make</code> options.</p></dd></dl></div><div class="glossdiv" title="F"><h3 class="title">F</h3><dl><dt><a id="var-FILES"></a>FILES</dt><dd><p> | ||
| 3462 | The list of directories or files that are placed in packages. | ||
| 3463 | </p><p> | ||
| 3464 | To use the <code class="filename">FILES</code> variable, provide a package name | ||
| 3465 | override that identifies the resulting package. | ||
| 3466 | Then, provide a space-separated list of files or paths that identifies the | ||
| 3467 | files you want included as part of the resulting package. | ||
| 3468 | Here is an example: | ||
| 3469 | </p><pre class="literallayout"> | ||
| 3470 | FILES_${PN} += "${bindir}/mydir1/ ${bindir}/mydir2/myfile" | ||
| 3471 | </pre><p> | ||
| 3472 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 3473 | When specifying paths as part of the <code class="filename">FILES</code> variable, | ||
| 3474 | it is good practice to use appropriate path variables. | ||
| 3475 | For example, <code class="filename">${sysconfdir}</code> rather than | ||
| 3476 | <code class="filename">/etc</code> or <code class="filename">${bindir}</code> rather | ||
| 3477 | than <code class="filename">/usr/bin</code>. | ||
| 3478 | You can find a list of these variables at the top of the | ||
| 3479 | <code class="filename">/meta/conf/bitbake.conf</code> file in the | ||
| 3480 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 3481 | </div><p> | ||
| 3482 | If some of the files you provide with the <code class="filename">FILES</code> variable | ||
| 3483 | are editable and you know they should not be | ||
| 3484 | overwritten during the package update process by the Package Management | ||
| 3485 | System (PMS), you can identify these files so that the PMS will not | ||
| 3486 | overwrite them. | ||
| 3487 | See the <code class="filename"><a class="link" href="#var-CONFFILES" title="CONFFILES">CONFFILES</a></code> | ||
| 3488 | variable for information on how to identify these files to the PMS. | ||
| 3489 | </p></dd><dt><a id="var-FILESEXTRAPATHS"></a>FILESEXTRAPATHS</dt><dd><p> | ||
| 3490 | Extends the search path the OpenEmbedded build system uses when | ||
| 3491 | looking for files and patches as it processes recipes. | ||
| 3492 | The directories BitBake uses when it processes recipes is defined by the | ||
| 3493 | <a class="link" href="#var-FILESPATH" title="FILESPATH"><code class="filename">FILESPATH</code></a> variable. | ||
| 3494 | You can add directories to the search path by defining the | ||
| 3495 | <code class="filename">FILESEXTRAPATHS</code> variable. | ||
| 3496 | </p><p> | ||
| 3497 | To add paths to the search order, provide a list of directories and separate | ||
| 3498 | each path using a colon character as follows: | ||
| 3499 | </p><pre class="literallayout"> | ||
| 3500 | FILESEXTRAPATHS_prepend := "path_1:path_2:path_3:" | ||
| 3501 | </pre><p> | ||
| 3502 | Typically, you want your directories searched first. | ||
| 3503 | To make sure that happens, use <code class="filename">_prepend</code> and | ||
| 3504 | the immediate expansion (<code class="filename">:=</code>) operator as shown in the | ||
| 3505 | previous example. | ||
| 3506 | Finally, to maintain the integrity of the <code class="filename">FILESPATH</code> variable, | ||
| 3507 | you must include the appropriate beginning or ending (as needed) colon character. | ||
| 3508 | </p><p> | ||
| 3509 | The <code class="filename">FILESEXTRAPATHS</code> variable is intended for use in | ||
| 3510 | <code class="filename">.bbappend</code> files to include any additional files provided in that layer. | ||
| 3511 | You typically accomplish this with the following: | ||
| 3512 | </p><pre class="literallayout"> | ||
| 3513 | FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:" | ||
| 3514 | </pre><p> | ||
| 3515 | </p></dd><dt><a id="var-FILESPATH"></a>FILESPATH</dt><dd><p> | ||
| 3516 | The default set of directories the OpenEmbedded build system uses | ||
| 3517 | when searching for patches and files. | ||
| 3518 | During the build process, BitBake searches each directory in | ||
| 3519 | <code class="filename">FILESPATH</code> in the specified order when looking for | ||
| 3520 | files and patches specified by each <code class="filename">file://</code> URI in a recipe. | ||
| 3521 | </p><p> | ||
| 3522 | The default value for the <code class="filename">FILESPATH</code> variable is defined | ||
| 3523 | in the <code class="filename">base.bbclass</code> class found in | ||
| 3524 | <code class="filename">meta/classes</code> in the | ||
| 3525 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>: | ||
| 3526 | </p><pre class="literallayout"> | ||
| 3527 | FILESPATH = "${@base_set_filespath([ "${FILE_DIRNAME}/${PF}", \ | ||
| 3528 | "${FILE_DIRNAME}/${P}", "${FILE_DIRNAME}/${PN}", \ | ||
| 3529 | "${FILE_DIRNAME}/${BP}", "${FILE_DIRNAME}/${BPN}", \ | ||
| 3530 | "${FILE_DIRNAME}/files", "${FILE_DIRNAME}" ], d)}" | ||
| 3531 | </pre><p> | ||
| 3532 | Do not hand-edit the <code class="filename">FILESPATH</code> variable. | ||
| 3533 | If you want to extend the set of pathnames that BitBake uses when searching for | ||
| 3534 | files and patches, use the | ||
| 3535 | <a class="link" href="#var-FILESEXTRAPATHS" title="FILESEXTRAPATHS"><code class="filename">FILESEXTRAPATHS</code></a> variable. | ||
| 3536 | </p></dd><dt><a id="var-FILESYSTEM_PERMS_TABLES"></a>FILESYSTEM_PERMS_TABLES</dt><dd><p>Allows you to define your own file permissions settings table as part of | ||
| 3537 | your configuration for the packaging process. | ||
| 3538 | For example, suppose you need a consistent set of custom permissions for | ||
| 3539 | a set of groups and users across an entire work project. | ||
| 3540 | It is best to do this in the packages themselves but this is not always | ||
| 3541 | possible. | ||
| 3542 | </p><p> | ||
| 3543 | By default, the OpenEmbedded build system uses the <code class="filename">fs-perms.txt</code>, which | ||
| 3544 | is located in the <code class="filename">meta/files</code> folder in the | ||
| 3545 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 3546 | If you create your own file permissions setting table, you should place it in your | ||
| 3547 | layer or the distros layer. | ||
| 3548 | </p><p> | ||
| 3549 | You define the <code class="filename">FILESYSTEM_PERMS_TABLES</code> variable in the | ||
| 3550 | <code class="filename">conf/local.conf</code> file, which is found in the | ||
| 3551 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>, to | ||
| 3552 | point to your custom <code class="filename">fs-perms.txt</code>. | ||
| 3553 | You can specify more than a single file permissions setting table. | ||
| 3554 | The paths you specify to these files must be defined within the | ||
| 3555 | <code class="filename">BBPATH</code> variable. | ||
| 3556 | </p><p> | ||
| 3557 | For guidance on how to create your own file permissions settings table file, | ||
| 3558 | examine the existing <code class="filename">fs-perms.txt</code>. | ||
| 3559 | </p></dd><dt><a id="var-FULL_OPTIMIZATION"></a>FULL_OPTIMIZATION</dt><dd><p> | ||
| 3560 | The options to pass in | ||
| 3561 | <code class="filename"><a class="link" href="#var-TARGET_CFLAGS" title="TARGET_CFLAGS">TARGET_CFLAGS</a></code> | ||
| 3562 | and <code class="filename"><a class="link" href="#var-CFLAGS" title="CFLAGS">CFLAGS</a></code> | ||
| 3563 | when compiling an optimized system. | ||
| 3564 | This variable defaults to | ||
| 3565 | "-fexpensive-optimizations -fomit-frame-pointer -frename-registers -O2". | ||
| 3566 | </p></dd></dl></div><div class="glossdiv" title="H"><h3 class="title">H</h3><dl><dt><a id="var-HOMEPAGE"></a>HOMEPAGE</dt><dd><p>Website where more information about the software the recipe is building | ||
| 3567 | can be found.</p></dd></dl></div><div class="glossdiv" title="I"><h3 class="title">I</h3><dl><dt><a id="var-IMAGE_FEATURES"></a>IMAGE_FEATURES</dt><dd><p>The list of features to include in an image. | ||
| 3568 | Typically, you configure this variable in an image recipe. | ||
| 3569 | Note that you can also add extra features to the image by using the | ||
| 3570 | <code class="filename"><a class="link" href="#var-EXTRA_IMAGE_FEATURES" title="EXTRA_IMAGE_FEATURES">EXTRA_IMAGE_FEATURES</a></code> variable. | ||
| 3571 | See the "<a class="link" href="#ref-features-image" title="9.3. Images">Images</a>" section for the | ||
| 3572 | full list of features that can be included in images built by the | ||
| 3573 | OpenEmbedded build system.</p></dd><dt><a id="var-IMAGE_FSTYPES"></a>IMAGE_FSTYPES</dt><dd><p>Formats of root filesystem images that you want to have created.</p></dd><dt><a id="var-IMAGE_INSTALL"></a>IMAGE_INSTALL</dt><dd><p> | ||
| 3574 | Specifies the packages to install into an image. | ||
| 3575 | The <code class="filename">IMAGE_INSTALL</code> variable is a mechanism for an image | ||
| 3576 | recipe and you should use it with care to avoid ordering issues. | ||
| 3577 | </p><p> | ||
| 3578 | Image recipes set <code class="filename">IMAGE_INSTALL</code> to specify the | ||
| 3579 | packages to install into an image through <code class="filename">image.bbclass</code>. | ||
| 3580 | Additionally, "helper" classes exist, such as <code class="filename">core-image.bbclass</code>, | ||
| 3581 | that can take | ||
| 3582 | <code class="filename"><a class="link" href="#var-IMAGE_FEATURES" title="IMAGE_FEATURES">IMAGE_FEATURES</a></code> lists | ||
| 3583 | and turn these into auto-generated entries in | ||
| 3584 | <code class="filename">IMAGE_INSTALL</code> in addition to its default contents. | ||
| 3585 | </p><p> | ||
| 3586 | Using <code class="filename">IMAGE_INSTALL</code> with the <code class="filename">+=</code> | ||
| 3587 | operator from the <code class="filename">/conf/local.conf</code> file or from within | ||
| 3588 | an image recipe is not recommended as it can cause ordering issues. | ||
| 3589 | Since <code class="filename">core-image.bbclass</code> sets <code class="filename">IMAGE_INSTALL</code> | ||
| 3590 | to a default value using the <code class="filename">?=</code> operator, using a | ||
| 3591 | <code class="filename">+=</code> operation against <code class="filename">IMAGE_INSTALL</code> | ||
| 3592 | will result in unexpected behavior when used in | ||
| 3593 | <code class="filename">/conf/local.conf</code>. | ||
| 3594 | Furthermore, the same operation from with an image recipe may or may not | ||
| 3595 | succeed depending on the specific situation. | ||
| 3596 | In both these cases, the behavior is contrary to how most users expect | ||
| 3597 | the <code class="filename">+=</code> operator to work. | ||
| 3598 | </p><p> | ||
| 3599 | When you use this variable, it is best to use it as follows: | ||
| 3600 | </p><pre class="literallayout"> | ||
| 3601 | IMAGE_INSTALL_append = " package-name" | ||
| 3602 | </pre><p> | ||
| 3603 | Be sure to include the space between the quotation character and the start of the | ||
| 3604 | package name. | ||
| 3605 | </p></dd><dt><a id="var-IMAGE_OVERHEAD_FACTOR"></a>IMAGE_OVERHEAD_FACTOR</dt><dd><p> | ||
| 3606 | Defines a multiplier that the build system applies to the initial image | ||
| 3607 | size for cases when the multiplier times the returned disk usage value | ||
| 3608 | for the image is greater than the sum of | ||
| 3609 | <code class="filename"><a class="link" href="#var-IMAGE_ROOTFS_SIZE" title="IMAGE_ROOTFS_SIZE">IMAGE_ROOTFS_SIZE</a></code> | ||
| 3610 | and | ||
| 3611 | <code class="filename"><a class="link" href="#var-IMAGE_ROOTFS_EXTRA_SPACE" title="IMAGE_ROOTFS_EXTRA_SPACE">IMAGE_ROOTFS_EXTRA_SPACE</a></code>. | ||
| 3612 | The result of the multiplier applied to the initial image size creates | ||
| 3613 | free disk space in the image as overhead. | ||
| 3614 | By default, the build process uses a multiplier of 1.3 for this variable. | ||
| 3615 | This default value results in 30% free disk space added to the image when this | ||
| 3616 | method is used to determine the final generated image size. | ||
| 3617 | You should be aware that post install scripts and the package management | ||
| 3618 | system uses disk space inside this overhead area. | ||
| 3619 | Consequently, the multiplier does not produce an image with | ||
| 3620 | all the theoretical free disk space. | ||
| 3621 | See <code class="filename"><a class="link" href="#var-IMAGE_ROOTFS_SIZE" title="IMAGE_ROOTFS_SIZE">IMAGE_ROOTFS_SIZE</a></code> | ||
| 3622 | for information on how the build system determines the overall image size. | ||
| 3623 | </p><p> | ||
| 3624 | The default 30% free disk space typically gives the image enough room to boot | ||
| 3625 | and allows for basic post installs while still leaving a small amount of | ||
| 3626 | free disk space. | ||
| 3627 | If 30% free space is inadequate, you can increase the default value. | ||
| 3628 | For example, the following setting gives you 50% free space added to the image: | ||
| 3629 | </p><pre class="literallayout"> | ||
| 3630 | IMAGE_OVERHEAD_FACTOR = "1.5" | ||
| 3631 | </pre><p> | ||
| 3632 | </p><p> | ||
| 3633 | Alternatively, you can ensure a specific amount of free disk space is added | ||
| 3634 | to the image by using | ||
| 3635 | <code class="filename"><a class="link" href="#var-IMAGE_ROOTFS_EXTRA_SPACE" title="IMAGE_ROOTFS_EXTRA_SPACE">IMAGE_ROOTFS_EXTRA_SPACE</a></code> | ||
| 3636 | the variable. | ||
| 3637 | </p></dd><dt><a id="var-IMAGE_ROOTFS_EXTRA_SPACE"></a>IMAGE_ROOTFS_EXTRA_SPACE</dt><dd><p> | ||
| 3638 | Defines additional free disk space created in the image in Kbytes. | ||
| 3639 | By default, this variable is set to "0". | ||
| 3640 | This free disk space is added to the image after the build system determines | ||
| 3641 | the image size as described in | ||
| 3642 | <code class="filename"><a class="link" href="#var-IMAGE_ROOTFS_SIZE" title="IMAGE_ROOTFS_SIZE">IMAGE_ROOTFS_SIZE</a></code>. | ||
| 3643 | </p><p> | ||
| 3644 | This variable is particularly useful when you want to ensure that a | ||
| 3645 | specific amount of free disk space is available on a device after an image | ||
| 3646 | is installed and running. | ||
| 3647 | For example, to be sure 5 Gbytes of free disk space is available, set the | ||
| 3648 | variable as follows: | ||
| 3649 | </p><pre class="literallayout"> | ||
| 3650 | IMAGE_ROOTFS_EXTRA_SPACE = "5242880" | ||
| 3651 | </pre><p> | ||
| 3652 | </p></dd><dt><a id="var-IMAGE_ROOTFS_SIZE"></a>IMAGE_ROOTFS_SIZE</dt><dd><p> | ||
| 3653 | Defines the size in Kbytes for the generated image. | ||
| 3654 | The OpenEmbedded build system determines the final size for the generated | ||
| 3655 | image using an algorithm that takes into account the initial disk space used | ||
| 3656 | for the generated image, a requested size for the image, and requested | ||
| 3657 | additional free disk space to be added to the image. | ||
| 3658 | Programatically, the build system determines the final size of the | ||
| 3659 | generated image as follows: | ||
| 3660 | </p><pre class="literallayout"> | ||
| 3661 | if (image-du * overhead) < rootfs-size: | ||
| 3662 | internal-rootfs-size = rootfs-size + xspace | ||
| 3663 | else: | ||
| 3664 | internal-rootfs-size = (image-du * overhead) + xspace | ||
| 3665 | |||
| 3666 | where: | ||
| 3667 | |||
| 3668 | image-du = Returned value of the du command on | ||
| 3669 | the image. | ||
| 3670 | |||
| 3671 | overhead = IMAGE_OVERHEAD_FACTOR | ||
| 3672 | |||
| 3673 | rootfs-size = IMAGE_ROOTFS_SIZE | ||
| 3674 | |||
| 3675 | internal-rootfs-size = Initial root filesystem | ||
| 3676 | size before any modifications. | ||
| 3677 | |||
| 3678 | xspace = IMAGE_ROOTFS_EXTRA_SPACE | ||
| 3679 | </pre><p> | ||
| 3680 | |||
| 3681 | </p></dd><dt><a id="var-INC_PR"></a>INC_PR</dt><dd><p>Helps define the recipe revision for recipes that share | ||
| 3682 | a common <code class="filename">include</code> file. | ||
| 3683 | You can think of this variable as part of the recipe revision | ||
| 3684 | as set from within an include file.</p><p>Suppose, for example, you have a set of recipes that | ||
| 3685 | are used across several projects. | ||
| 3686 | And, within each of those recipes the revision | ||
| 3687 | (its <code class="filename">PR</code> value) is set accordingly. | ||
| 3688 | In this case, when the revision of those recipes changes | ||
| 3689 | the burden is on you to find all those recipes and | ||
| 3690 | be sure that they get changed to reflect the updated | ||
| 3691 | version of the recipe. | ||
| 3692 | In this scenario, it can get complicated when recipes | ||
| 3693 | used in many places and that provide common functionality | ||
| 3694 | are upgraded to a new revision.</p><p>A more efficient way of dealing with this situation is | ||
| 3695 | to set the <code class="filename">INC_PR</code> variable inside | ||
| 3696 | the <code class="filename">include</code> files that the recipes | ||
| 3697 | share and then expand the <code class="filename">INC_PR</code> | ||
| 3698 | variable within the recipes to help | ||
| 3699 | define the recipe revision. | ||
| 3700 | </p><p> | ||
| 3701 | The following provides an example that shows how to use | ||
| 3702 | the <code class="filename">INC_PR</code> variable | ||
| 3703 | given a common <code class="filename">include</code> file that | ||
| 3704 | defines the variable. | ||
| 3705 | Once the variable is defined in the | ||
| 3706 | <code class="filename">include</code> file, you can use the | ||
| 3707 | variable to set the <code class="filename">PR</code> values in | ||
| 3708 | each recipe. | ||
| 3709 | You will notice that when you set a recipe's | ||
| 3710 | <code class="filename">PR</code> you can provide more granular | ||
| 3711 | revisioning by appending values to the | ||
| 3712 | <code class="filename">INC_PR</code> variable: | ||
| 3713 | </p><pre class="literallayout"> | ||
| 3714 | recipes-graphics/xorg-font/xorg-font-common.inc:INC_PR = "r2" | ||
| 3715 | recipes-graphics/xorg-font/encodings_1.0.4.bb:PR = "${INC_PR}.1" | ||
| 3716 | recipes-graphics/xorg-font/font-util_1.3.0.bb:PR = "${INC_PR}.0" | ||
| 3717 | recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3" | ||
| 3718 | </pre><p> | ||
| 3719 | The first line of the example establishes the baseline | ||
| 3720 | revision to be used for all recipes that use the | ||
| 3721 | <code class="filename">include</code> file. | ||
| 3722 | The remaining lines in the example are from individual | ||
| 3723 | recipes and show how the <code class="filename">PR</code> value | ||
| 3724 | is set.</p></dd><dt><a id="var-INHIBIT_PACKAGE_STRIP"></a>INHIBIT_PACKAGE_STRIP</dt><dd><p> | ||
| 3725 | Causes the build to not strip binaries in resulting packages. | ||
| 3726 | </p></dd><dt><a id="var-INHERIT"></a>INHERIT</dt><dd><p> | ||
| 3727 | Causes the named class to be inherited at | ||
| 3728 | this point during parsing. | ||
| 3729 | The variable is only valid in configuration files. | ||
| 3730 | </p></dd><dt><a id="var-INITSCRIPT_PACKAGES"></a>INITSCRIPT_PACKAGES</dt><dd><p> | ||
| 3731 | A list of the packages that contain initscripts. | ||
| 3732 | If multiple packages are specified, you need to append the package name | ||
| 3733 | to the other <code class="filename">INITSCRIPT_*</code> as an override.</p><p> | ||
| 3734 | This variable is used in recipes when using <code class="filename">update-rc.d.bbclass</code>. | ||
| 3735 | The variable is optional and defaults to the <code class="filename">PN</code> variable. | ||
| 3736 | </p></dd><dt><a id="var-INITSCRIPT_NAME"></a>INITSCRIPT_NAME</dt><dd><p> | ||
| 3737 | The filename of the initscript (as installed to <code class="filename">${etcdir}/init.d)</code>. | ||
| 3738 | </p><p> | ||
| 3739 | This variable is used in recipes when using <code class="filename">update-rc.d.bbclass</code>. | ||
| 3740 | The variable is Mandatory. | ||
| 3741 | </p></dd><dt><a id="var-INITSCRIPT_PARAMS"></a>INITSCRIPT_PARAMS</dt><dd><p> | ||
| 3742 | Specifies the options to pass to <code class="filename">update-rc.d</code>. | ||
| 3743 | An example is <code class="filename">start 99 5 2 . stop 20 0 1 6 .</code>, which gives the script a | ||
| 3744 | runlevel of 99, starts the script in initlevels 2 and 5, and | ||
| 3745 | stops the script in levels 0, 1 and 6. | ||
| 3746 | </p><p> | ||
| 3747 | The variable is mandatory and is used in recipes when using | ||
| 3748 | <code class="filename">update-rc.d.bbclass</code>. | ||
| 3749 | </p></dd></dl></div><div class="glossdiv" title="K"><h3 class="title">K</h3><dl><dt><a id="var-KBRANCH"></a>KBRANCH</dt><dd><p> | ||
| 3750 | A regular expression used by the build process to explicitly identify the kernel | ||
| 3751 | branch that is validated, patched and configured during a build. | ||
| 3752 | The <code class="filename">KBRANCH</code> variable is optional. | ||
| 3753 | You can use it to trigger checks to ensure the exact kernel branch you want is | ||
| 3754 | being used by the build process. | ||
| 3755 | </p><p> | ||
| 3756 | Values for this variable are set in the kernel's recipe file and the kernel's | ||
| 3757 | append file. | ||
| 3758 | For example, if you are using the Yocto Project kernel that is based on the | ||
| 3759 | Linux 3.4 kernel, the kernel recipe file is the | ||
| 3760 | <code class="filename">meta/recipes-kernel/linux/linux-yocto_3.4.bb</code> file. | ||
| 3761 | Following is the default value for <code class="filename">KBRANCH</code> and the default | ||
| 3762 | override for the architectures the Yocto Project supports: | ||
| 3763 | </p><pre class="literallayout"> | ||
| 3764 | KBRANCH_DEFAULT = "standard/base" | ||
| 3765 | KBRANCH = "${KBRANCH_DEFAULT}" | ||
| 3766 | </pre><p> | ||
| 3767 | This branch exists in the <code class="filename">linux-yocto-3.4</code> kernel Git | ||
| 3768 | repository <a class="ulink" href="http://git.yoctoproject.org/cgit.cgi/linux-yocto-3.4/refs/heads" target="_top">http://git.yoctoproject.org/cgit.cgi/linux-yocto-3.4/refs/heads</a>. | ||
| 3769 | </p><p> | ||
| 3770 | This variable is also used from the kernel's append file to identify the kernel | ||
| 3771 | branch specific to a particular machine or target hardware. | ||
| 3772 | The kernel's append file is located in the BSP layer for a given machine. | ||
| 3773 | For example, the kernel append file for the Crown Bay BSP is in the | ||
| 3774 | <code class="filename">meta-intel</code> Git repository and is named | ||
| 3775 | <code class="filename">meta-crownbay/recipes-kernel/linux/linux-yocto_3.4.bbappend</code>. | ||
| 3776 | Here are the related statements from the append file: | ||
| 3777 | </p><pre class="literallayout"> | ||
| 3778 | COMPATIBLE_MACHINE_crownbay = "crownbay" | ||
| 3779 | KMACHINE_crownbay = "crownbay" | ||
| 3780 | KBRANCH_crownbay = "standard/crownbay" | ||
| 3781 | |||
| 3782 | COMPATIBLE_MACHINE_crownbay-noemgd = "crownbay-noemgd" | ||
| 3783 | KMACHINE_crownbay-noemgd = "crownbay" | ||
| 3784 | KBRANCH_crownbay-noemgd = "standard/crownbay" | ||
| 3785 | </pre><p> | ||
| 3786 | The <code class="filename">KBRANCH_*</code> statements identify the kernel branch to | ||
| 3787 | use when building for the Crown Bay BSP. | ||
| 3788 | In this case there are two identical statements: one for each type of | ||
| 3789 | Crown Bay machine. | ||
| 3790 | </p></dd><dt><a id="var-KERNEL_FEATURES"></a>KERNEL_FEATURES</dt><dd><p>Includes additional metadata from the Yocto Project kernel Git repository. | ||
| 3791 | In the OpenEmbedded build system, the default Board Support Packages (BSPs) | ||
| 3792 | metadata is provided through | ||
| 3793 | the <code class="filename">KMACHINE</code> and <code class="filename">KBRANCH</code> variables. | ||
| 3794 | You can use the <code class="filename">KERNEL_FEATURES</code> variable to further | ||
| 3795 | add metadata for all BSPs.</p><p>The metadata you add through this variable includes config fragments and | ||
| 3796 | features descriptions, | ||
| 3797 | which usually includes patches as well as config fragments. | ||
| 3798 | You typically override the <code class="filename">KERNEL_FEATURES</code> variable | ||
| 3799 | for a specific machine. | ||
| 3800 | In this way, you can provide validated, but optional, sets of kernel | ||
| 3801 | configurations and features.</p><p>For example, the following adds <code class="filename">netfilter</code> to all | ||
| 3802 | the Yocto Project kernels and adds sound support to the <code class="filename">qemux86</code> | ||
| 3803 | machine: | ||
| 3804 | </p><pre class="literallayout"> | ||
| 3805 | # Add netfilter to all linux-yocto kernels | ||
| 3806 | KERNEL_FEATURES="features/netfilter" | ||
| 3807 | |||
| 3808 | # Add sound support to the qemux86 machine | ||
| 3809 | KERNEL_FEATURES_append_qemux86=" cfg/sound" | ||
| 3810 | </pre></dd><dt><a id="var-KERNEL_IMAGETYPE"></a>KERNEL_IMAGETYPE</dt><dd><p>The type of kernel to build for a device, usually set by the | ||
| 3811 | machine configuration files and defaults to "zImage". | ||
| 3812 | This variable is used | ||
| 3813 | when building the kernel and is passed to <code class="filename">make</code> as the target to | ||
| 3814 | build.</p></dd><dt><a id="var-KMACHINE"></a>KMACHINE</dt><dd><p> | ||
| 3815 | The machine as known by the kernel. | ||
| 3816 | Sometimes the machine name used by the kernel does not match the machine name | ||
| 3817 | used by the OpenEmbedded build system. | ||
| 3818 | For example, the machine name that the OpenEmbedded build system understands as | ||
| 3819 | <code class="filename">qemuarm</code> goes by a different name in the Linux Yocto kernel. | ||
| 3820 | The kernel understands that machine as <code class="filename">arm_versatile926ejs</code>. | ||
| 3821 | For cases like these, the <code class="filename">KMACHINE</code> variable maps the | ||
| 3822 | kernel machine name to the OpenEmbedded build system machine name. | ||
| 3823 | </p><p> | ||
| 3824 | Kernel machine names are initially defined in the | ||
| 3825 | <a class="ulink" href="http://git.yoctoproject.org/cgit.cgi" target="_top">Yocto Linux Kernel</a> in | ||
| 3826 | the <code class="filename">meta</code> branch. | ||
| 3827 | From the <code class="filename">meta</code> branch, look in | ||
| 3828 | the <code class="filename">meta/cfg/kernel-cache/bsp/<bsp_name>/<bsp-name>-<kernel-type>.scc</code> file. | ||
| 3829 | For example, from the <code class="filename">meta</code> branch in the | ||
| 3830 | <code class="filename">linux-yocto-3.0</code> kernel, the | ||
| 3831 | <code class="filename">meta/cfg/kernel-cache/bsp/cedartrail/cedartrail-standard.scc</code> file | ||
| 3832 | has the following: | ||
| 3833 | </p><pre class="literallayout"> | ||
| 3834 | define KMACHINE cedartrail | ||
| 3835 | define KTYPE standard | ||
| 3836 | define KARCH i386 | ||
| 3837 | |||
| 3838 | include ktypes/standard | ||
| 3839 | branch cedartrail | ||
| 3840 | |||
| 3841 | include cedartrail.scc | ||
| 3842 | </pre><p> | ||
| 3843 | You can see that the kernel understands the machine name for the Cedar Trail BSP as | ||
| 3844 | <code class="filename">cedartrail</code>. | ||
| 3845 | </p><p> | ||
| 3846 | If you look in the Cedar Trail BSP layer in the <code class="filename">meta-intel</code> source | ||
| 3847 | repository at <code class="filename">meta-cedartrail/recipes-kernel/linux/linux-yocto_3.0.bbappend</code>, | ||
| 3848 | you will find the following statements among others: | ||
| 3849 | </p><pre class="literallayout"> | ||
| 3850 | COMPATIBLE_MACHINE_cedartrail = "cedartrail" | ||
| 3851 | KMACHINE_cedartrail = "cedartrail" | ||
| 3852 | KBRANCH_cedartrail = "yocto/standard/cedartrail" | ||
| 3853 | KERNEL_FEATURES_append_cedartrail += "bsp/cedartrail/cedartrail-pvr-merge.scc" | ||
| 3854 | KERNEL_FEATURES_append_cedartrail += "cfg/efi-ext.scc" | ||
| 3855 | |||
| 3856 | COMPATIBLE_MACHINE_cedartrail-nopvr = "cedartrail" | ||
| 3857 | KMACHINE_cedartrail-nopvr = "cedartrail" | ||
| 3858 | KBRANCH_cedartrail-nopvr = "yocto/standard/cedartrail" | ||
| 3859 | KERNEL_FEATURES_append_cedartrail-nopvr += " cfg/smp.scc" | ||
| 3860 | </pre><p> | ||
| 3861 | The <code class="filename">KMACHINE</code> statements in the kernel's append file make sure that | ||
| 3862 | the OpenEmbedded build system and the Yocto Linux kernel understand the same machine | ||
| 3863 | names. | ||
| 3864 | </p><p> | ||
| 3865 | This append file uses two <code class="filename">KMACHINE</code> statements. | ||
| 3866 | The first is not really necessary but does ensure that the machine known to the | ||
| 3867 | OpenEmbedded build system as <code class="filename">cedartrail</code> maps to the machine | ||
| 3868 | in the kernel also known as <code class="filename">cedartrail</code>: | ||
| 3869 | </p><pre class="literallayout"> | ||
| 3870 | KMACHINE_cedartrail = "cedartrail" | ||
| 3871 | </pre><p> | ||
| 3872 | </p><p> | ||
| 3873 | The second statement is a good example of why the <code class="filename">KMACHINE</code> variable | ||
| 3874 | is needed. | ||
| 3875 | In this example, the OpenEmbedded build system uses the <code class="filename">cedartrail-nopvr</code> | ||
| 3876 | machine name to refer to the Cedar Trail BSP that does not support the propriatory | ||
| 3877 | PowerVR driver. | ||
| 3878 | The kernel, however, uses the machine name <code class="filename">cedartrail</code>. | ||
| 3879 | Thus, the append file must map the <code class="filename">cedartrail-nopvr</code> machine name to | ||
| 3880 | the kernel's <code class="filename">cedartrail</code> name: | ||
| 3881 | </p><pre class="literallayout"> | ||
| 3882 | KMACHINE_cedartrail-nopvr = "cedartrail" | ||
| 3883 | </pre><p> | ||
| 3884 | </p><p> | ||
| 3885 | BSPs that ship with the Yocto Project release provide all mappings between the Yocto | ||
| 3886 | Project kernel machine names and the OpenEmbedded machine names. | ||
| 3887 | Be sure to use the <code class="filename">KMACHINE</code> if you create a BSP and the machine | ||
| 3888 | name you use is different than that used in the kernel. | ||
| 3889 | </p></dd></dl></div><div class="glossdiv" title="L"><h3 class="title">L</h3><dl><dt><a id="var-LAYERDEPENDS"></a>LAYERDEPENDS</dt><dd><p>Lists the layers that this recipe depends upon, separated by spaces. | ||
| 3890 | Optionally, you can specify a specific layer version for a dependency | ||
| 3891 | by adding it to the end of the layer name with a colon, (e.g. "anotherlayer:3" | ||
| 3892 | to be compared against <code class="filename">LAYERVERSION_anotherlayer</code> in this case). | ||
| 3893 | An error will be produced if any dependency is missing or | ||
| 3894 | the version numbers do not match exactly (if specified). | ||
| 3895 | This variable is used in the <code class="filename">conf/layer.conf</code> file | ||
| 3896 | and must be suffixed with the name of the specific layer (e.g. | ||
| 3897 | <code class="filename">LAYERDEPENDS_mylayer</code>).</p></dd><dt><a id="var-LAYERDIR"></a>LAYERDIR</dt><dd><p>When used inside the <code class="filename">layer.conf</code> configuration | ||
| 3898 | file, this variable provides the path of the current layer. | ||
| 3899 | This variable requires immediate expansion | ||
| 3900 | (see the BitBake manual) as lazy expansion can result in | ||
| 3901 | the expansion happening in the wrong directory and therefore | ||
| 3902 | giving the wrong value.</p></dd><dt><a id="var-LAYERVERSION"></a>LAYERVERSION</dt><dd><p>Optionally specifies the version of a layer as a single number. | ||
| 3903 | You can use this within <code class="filename">LAYERDEPENDS</code> for another layer in order to | ||
| 3904 | depend on a specific version of the layer. | ||
| 3905 | This variable is used in the <code class="filename">conf/layer.conf</code> file | ||
| 3906 | and must be suffixed with the name of the specific layer (e.g. | ||
| 3907 | <code class="filename">LAYERVERSION_mylayer</code>).</p></dd><dt><a id="var-LIC_FILES_CHKSUM"></a>LIC_FILES_CHKSUM</dt><dd><p>Checksums of the license text in the recipe source code.</p><p>This variable tracks changes in license text of the source | ||
| 3908 | code files. | ||
| 3909 | If the license text is changed, it will trigger a build | ||
| 3910 | failure, which gives the developer an opportunity to review any | ||
| 3911 | license change.</p><p> | ||
| 3912 | This variable must be defined for all recipes (unless <code class="filename">LICENSE</code> | ||
| 3913 | is set to "CLOSED")</p><p>For more information, see the | ||
| 3914 | <a class="link" href="#usingpoky-configuring-LIC_FILES_CHKSUM" title="3.4.1. Tracking License Changes"> | ||
| 3915 | Tracking License Changes</a> section</p></dd><dt><a id="var-LICENSE"></a>LICENSE</dt><dd><p> | ||
| 3916 | The list of source licenses for the recipe. | ||
| 3917 | Follow these rules: | ||
| 3918 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>Do not use spaces within individual | ||
| 3919 | license names.</p></li><li class="listitem"><p>Separate license names using | ||
| 3920 | | (pipe) when there is a choice between licenses. | ||
| 3921 | </p></li><li class="listitem"><p>Separate license names using | ||
| 3922 | & (ampersand) when multiple licenses exist | ||
| 3923 | that cover different parts of the source. | ||
| 3924 | </p></li><li class="listitem"><p>You can use spaces between license | ||
| 3925 | names.</p></li></ul></div><p> | ||
| 3926 | </p><p> | ||
| 3927 | Here are some examples: | ||
| 3928 | </p><pre class="literallayout"> | ||
| 3929 | LICENSE = "LGPLv2.1 | GPLv3" | ||
| 3930 | LICENSE = "MPL-1 & LGPLv2.1" | ||
| 3931 | LICENSE = "GPLv2+" | ||
| 3932 | </pre><p> | ||
| 3933 | The first example is from the recipes for Qt, which the user | ||
| 3934 | may choose to distribute under either the LGPL version | ||
| 3935 | 2.1 or GPL version 3. | ||
| 3936 | The second example is from Cairo where two licenses cover | ||
| 3937 | different parts of the source code. | ||
| 3938 | The final example is from <code class="filename">sysstat</code>, | ||
| 3939 | which presents a single license. | ||
| 3940 | </p></dd><dt><a id="var-LICENSE_PATH"></a>LICENSE_PATH</dt><dd><p>Path to additional licenses used during the build. | ||
| 3941 | By default, the OpenEmbedded build system uses <code class="filename">COMMON_LICENSE_DIR</code> | ||
| 3942 | to define the directory that holds common license text used during the build. | ||
| 3943 | The <code class="filename">LICENSE_PATH</code> variable allows you to extend that | ||
| 3944 | location to other areas that have additional licenses: | ||
| 3945 | </p><pre class="literallayout"> | ||
| 3946 | LICENSE_PATH += "/path/to/additional/common/licenses" | ||
| 3947 | </pre></dd></dl></div><div class="glossdiv" title="M"><h3 class="title">M</h3><dl><dt><a id="var-MACHINE"></a>MACHINE</dt><dd><p> | ||
| 3948 | Specifies the target device for which the image is built. | ||
| 3949 | You define <code class="filename">MACHINE</code> in the | ||
| 3950 | <code class="filename">local.conf</code> file found in the | ||
| 3951 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>. | ||
| 3952 | By default, <code class="filename">MACHINE</code> is set to | ||
| 3953 | "qemux86", which is an x86-based architecture machine to | ||
| 3954 | be emulated using QEMU: | ||
| 3955 | </p><pre class="literallayout"> | ||
| 3956 | MACHINE ?= "qemux86" | ||
| 3957 | </pre><p> | ||
| 3958 | The variable corresponds to a machine configuration file of the | ||
| 3959 | same name, through which machine-specific configurations are set. | ||
| 3960 | Thus, when <code class="filename">MACHINE</code> is set to "qemux86" there | ||
| 3961 | exists the corresponding <code class="filename">qemux86.conf</code> machine | ||
| 3962 | configuration file, which can be found in the | ||
| 3963 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a> | ||
| 3964 | in <code class="filename">meta/conf/machine</code>. | ||
| 3965 | </p><p> | ||
| 3966 | The list of machines supported by the Yocto Project as | ||
| 3967 | shipped include the following: | ||
| 3968 | </p><pre class="literallayout"> | ||
| 3969 | MACHINE ?= "qemuarm" | ||
| 3970 | MACHINE ?= "qemumips" | ||
| 3971 | MACHINE ?= "qemuppc" | ||
| 3972 | MACHINE ?= "qemux86" | ||
| 3973 | MACHINE ?= "qemux86-64" | ||
| 3974 | MACHINE ?= "atom-pc" | ||
| 3975 | MACHINE ?= "beagleboard" | ||
| 3976 | MACHINE ?= "mpc8315e-rdb" | ||
| 3977 | MACHINE ?= "routerstationpro" | ||
| 3978 | </pre><p> | ||
| 3979 | The last four are Yocto Project reference hardware boards, which | ||
| 3980 | are provided in the <code class="filename">meta-yocto-bsp</code> layer. | ||
| 3981 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3>Adding additional Board Support Package (BSP) layers | ||
| 3982 | to your configuration adds new possible settings for | ||
| 3983 | <code class="filename">MACHINE</code>. | ||
| 3984 | </div><p> | ||
| 3985 | </p></dd><dt><a id="var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS"></a>MACHINE_ESSENTIAL_EXTRA_RDEPENDS</dt><dd><p></p><p> | ||
| 3986 | A list of required machine-specific packages to install as part of | ||
| 3987 | the image being built. | ||
| 3988 | The build process depends on these packages being present. | ||
| 3989 | Furthermore, because this is a "machine essential" variable, the list of | ||
| 3990 | packages are essential for the machine to boot. | ||
| 3991 | The impact of this variable affects images based on | ||
| 3992 | <code class="filename">packagegroup-core-boot</code>, | ||
| 3993 | including the <code class="filename">core-image-minimal</code> image. | ||
| 3994 | </p><p> | ||
| 3995 | This variable is similar to the | ||
| 3996 | <code class="filename"><a class="link" href="#var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS" title="MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS">MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</a></code> | ||
| 3997 | variable with the exception that the image being built has a build | ||
| 3998 | dependency on the variable's list of packages. | ||
| 3999 | In other words, the image will not build if a file in this list is not found. | ||
| 4000 | </p><p> | ||
| 4001 | As an example, suppose the machine for which you are building requires | ||
| 4002 | <code class="filename">example-init</code> to be run during boot to initialize the hardware. | ||
| 4003 | In this case, you would use the following in the machine's | ||
| 4004 | <code class="filename">.conf</code> configuration file: | ||
| 4005 | </p><pre class="literallayout"> | ||
| 4006 | MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "example-init" | ||
| 4007 | </pre><p> | ||
| 4008 | </p></dd><dt><a id="var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS"></a>MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</dt><dd><p></p><p> | ||
| 4009 | A list of recommended machine-specific packages to install as part of | ||
| 4010 | the image being built. | ||
| 4011 | The build process does not depend on these packages being present. | ||
| 4012 | However, because this is a "machine essential" variable, the list of | ||
| 4013 | packages are essential for the machine to boot. | ||
| 4014 | The impact of this variable affects images based on | ||
| 4015 | <code class="filename">packagegroup-core-boot</code>, | ||
| 4016 | including the <code class="filename">core-image-minimal</code> image. | ||
| 4017 | </p><p> | ||
| 4018 | This variable is similar to the | ||
| 4019 | <code class="filename"><a class="link" href="#var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS" title="MACHINE_ESSENTIAL_EXTRA_RDEPENDS">MACHINE_ESSENTIAL_EXTRA_RDEPENDS</a></code> | ||
| 4020 | variable with the exception that the image being built does not have a build | ||
| 4021 | dependency on the variable's list of packages. | ||
| 4022 | In other words, the image will still build if a package in this list is not found. | ||
| 4023 | Typically, this variable is used to handle essential kernel modules, whose | ||
| 4024 | functionality may be selected to be built into the kernel rather than as a module, | ||
| 4025 | in which case a package will not be produced. | ||
| 4026 | </p><p> | ||
| 4027 | Consider an example where you have a custom kernel where a specific touchscreen | ||
| 4028 | driver is required for the machine to be usable. | ||
| 4029 | However, the driver can be built as a module or | ||
| 4030 | into the kernel depending on the kernel configuration. | ||
| 4031 | If the driver is built as a module, you want it to be installed. | ||
| 4032 | But, when the driver is built into the kernel, you still want the | ||
| 4033 | build to succeed. | ||
| 4034 | This variable sets up a "recommends" relationship so that in the latter case, | ||
| 4035 | the build will not fail due to the missing package. | ||
| 4036 | To accomplish this, assuming the package for the module was called | ||
| 4037 | <code class="filename">kernel-module-ab123</code>, you would use the | ||
| 4038 | following in the machine's <code class="filename">.conf</code> configuration | ||
| 4039 | file: | ||
| 4040 | </p><pre class="literallayout"> | ||
| 4041 | MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS += "kernel-module-ab123" | ||
| 4042 | </pre><p> | ||
| 4043 | </p><p> | ||
| 4044 | Some examples of these machine essentials are flash, screen, keyboard, mouse, | ||
| 4045 | or touchscreen drivers (depending on the machine). | ||
| 4046 | </p></dd><dt><a id="var-MACHINE_EXTRA_RDEPENDS"></a>MACHINE_EXTRA_RDEPENDS</dt><dd><p> | ||
| 4047 | A list of machine-specific packages to install as part of the | ||
| 4048 | image being built that are not essential for the machine to boot. | ||
| 4049 | However, the build process for more fully-featured images | ||
| 4050 | depends on the packages being present. | ||
| 4051 | </p><p> | ||
| 4052 | This variable affects all images based on | ||
| 4053 | <code class="filename">packagegroup-base</code>, which does not include the | ||
| 4054 | <code class="filename">core-image-minimal</code> or <code class="filename">core-image-basic</code> | ||
| 4055 | images. | ||
| 4056 | </p><p> | ||
| 4057 | The variable is similar to the | ||
| 4058 | <code class="filename"><a class="link" href="#var-MACHINE_EXTRA_RRECOMMENDS" title="MACHINE_EXTRA_RRECOMMENDS">MACHINE_EXTRA_RRECOMMENDS</a></code> | ||
| 4059 | variable with the exception that the image being built has a build | ||
| 4060 | dependency on the variable's list of packages. | ||
| 4061 | In other words, the image will not build if a file in this list is not found. | ||
| 4062 | </p><p> | ||
| 4063 | An example is a machine that has WiFi capability but is not essential | ||
| 4064 | For the machine to boot the image. | ||
| 4065 | However, if you are building a more fully-featured image, you want to enable | ||
| 4066 | the WiFi. | ||
| 4067 | The package containing the firmware for the WiFi hardware is always | ||
| 4068 | expected to exist, so it is acceptable for the build process to depend upon | ||
| 4069 | finding the package. | ||
| 4070 | In this case, assuming the package for the firmware was called | ||
| 4071 | <code class="filename">wifidriver-firmware</code>, you would use the following in the | ||
| 4072 | <code class="filename">.conf</code> file for the machine: | ||
| 4073 | </p><pre class="literallayout"> | ||
| 4074 | MACHINE_EXTRA_RDEPENDS += "wifidriver-firmware" | ||
| 4075 | </pre><p> | ||
| 4076 | </p></dd><dt><a id="var-MACHINE_EXTRA_RRECOMMENDS"></a>MACHINE_EXTRA_RRECOMMENDS</dt><dd><p></p><p> | ||
| 4077 | A list of machine-specific packages to install as part of the | ||
| 4078 | image being built that are not essential for booting the machine. | ||
| 4079 | The image being built has no build dependency on this list of packages. | ||
| 4080 | </p><p> | ||
| 4081 | This variable affects only images based on | ||
| 4082 | <code class="filename">packagegroup-base</code>, which does not include the | ||
| 4083 | <code class="filename">core-image-minimal</code> or <code class="filename">core-image-basic</code> | ||
| 4084 | images. | ||
| 4085 | </p><p> | ||
| 4086 | This variable is similar to the | ||
| 4087 | <code class="filename"><a class="link" href="#var-MACHINE_EXTRA_RDEPENDS" title="MACHINE_EXTRA_RDEPENDS">MACHINE_EXTRA_RDEPENDS</a></code> | ||
| 4088 | variable with the exception that the image being built does not have a build | ||
| 4089 | dependency on the variable's list of packages. | ||
| 4090 | In other words, the image will build if a file in this list is not found. | ||
| 4091 | </p><p> | ||
| 4092 | An example is a machine that has WiFi capability but is not essential | ||
| 4093 | For the machine to boot the image. | ||
| 4094 | However, if you are building a more fully-featured image, you want to enable | ||
| 4095 | WiFi. | ||
| 4096 | In this case, the package containing the WiFi kernel module will not be produced | ||
| 4097 | if the WiFi driver is built into the kernel, in which case you still want the | ||
| 4098 | build to succeed instead of failing as a result of the package not being found. | ||
| 4099 | To accomplish this, assuming the package for the module was called | ||
| 4100 | <code class="filename">kernel-module-examplewifi</code>, you would use the | ||
| 4101 | following in the <code class="filename">.conf</code> file for the machine: | ||
| 4102 | </p><pre class="literallayout"> | ||
| 4103 | MACHINE_EXTRA_RRECOMMENDS += "kernel-module-examplewifi" | ||
| 4104 | </pre><p> | ||
| 4105 | </p></dd><dt><a id="var-MACHINE_FEATURES"></a>MACHINE_FEATURES</dt><dd><p>Specifies the list of hardware features the | ||
| 4106 | <a class="link" href="#var-MACHINE" title="MACHINE">MACHINE</a> supports. | ||
| 4107 | For example, including the "bluetooth" feature causes the | ||
| 4108 | <code class="filename">bluez</code> bluetooth daemon to be built and | ||
| 4109 | added to the image. | ||
| 4110 | It also causes the <code class="filename">connman</code> recipe | ||
| 4111 | to look at <code class="filename">MACHINE_FEATURES</code> and when it | ||
| 4112 | finds "bluetooth" there it enables the bluetooth | ||
| 4113 | support in ConnMan. | ||
| 4114 | </p><p> | ||
| 4115 | For a list of features supported by the Yocto Project as shipped, | ||
| 4116 | see the "<a class="link" href="#ref-features-machine" title="9.2. Machine">Machine</a>" section. | ||
| 4117 | </p></dd><dt><a id="var-MACHINE_FEATURES_BACKFILL"></a>MACHINE_FEATURES_BACKFILL</dt><dd><p>Features to be added to | ||
| 4118 | <code class="filename"><a class="link" href="#var-MACHINE_FEATURES" title="MACHINE_FEATURES">MACHINE_FEATURES</a></code> | ||
| 4119 | if not also present in | ||
| 4120 | <code class="filename"><a class="link" href="#var-MACHINE_FEATURES_BACKFILL_CONSIDERED" title="MACHINE_FEATURES_BACKFILL_CONSIDERED">MACHINE_FEATURES_BACKFILL_CONSIDERED</a></code>. | ||
| 4121 | </p><p> | ||
| 4122 | This variable is set in the <code class="filename">meta/conf/bitbake.conf</code> file. | ||
| 4123 | It is not intended to be user-configurable. | ||
| 4124 | It is best to just reference the variable to see which machine features are | ||
| 4125 | being backfilled for all machine configurations. | ||
| 4126 | See the <a class="link" href="#ref-features-backfill" title="9.4. Feature Backfilling">Feature backfilling</a> section for | ||
| 4127 | more information. | ||
| 4128 | </p></dd><dt><a id="var-MACHINE_FEATURES_BACKFILL_CONSIDERED"></a>MACHINE_FEATURES_BACKFILL_CONSIDERED</dt><dd><p>Features from | ||
| 4129 | <code class="filename"><a class="link" href="#var-MACHINE_FEATURES_BACKFILL" title="MACHINE_FEATURES_BACKFILL">MACHINE_FEATURES_BACKFILL</a></code> | ||
| 4130 | that should not be backfilled (i.e. added to | ||
| 4131 | <code class="filename"><a class="link" href="#var-MACHINE_FEATURES" title="MACHINE_FEATURES">MACHINE_FEATURES</a></code>) | ||
| 4132 | during the build. | ||
| 4133 | See the <a class="link" href="#ref-features-backfill" title="9.4. Feature Backfilling">Feature backfilling</a> section for | ||
| 4134 | more information. | ||
| 4135 | </p></dd><dt><a id="var-MAINTAINER"></a>MAINTAINER</dt><dd><p>The email address of the distribution maintainer.</p></dd><dt><a id="var-MLPREFIX"></a>MLPREFIX</dt><dd><p> | ||
| 4136 | Specifies a prefix has been added to | ||
| 4137 | <a class="link" href="#var-PN" title="PN"><code class="filename">PN</code></a> to create a special version | ||
| 4138 | of a recipe or package, such as a multilib version. | ||
| 4139 | The variable is used in places where the prefix needs to be | ||
| 4140 | added to or removed from a the name (e.g. the | ||
| 4141 | <a class="link" href="#var-BPN" title="BPN"><code class="filename">BPN</code></a> variable). | ||
| 4142 | <code class="filename">MLPREFIX</code> gets set when a prefix has been | ||
| 4143 | added to <code class="filename">PN</code>. | ||
| 4144 | </p></dd><dt><a id="var-MULTIMACH_TARGET_SYS"></a>MULTIMACH_TARGET_SYS</dt><dd><p> | ||
| 4145 | Separates files for different machines such that you can build | ||
| 4146 | for multiple target machines using the same output directories. | ||
| 4147 | See the <a class="link" href="#var-STAMP" title="STAMP"><code class="filename">STAMP</code></a> variable | ||
| 4148 | for an example. | ||
| 4149 | </p></dd></dl></div><div class="glossdiv" title="O"><h3 class="title">O</h3><dl><dt><a id="var-OE_TERMINAL"></a>OE_TERMINAL</dt><dd><p> | ||
| 4150 | Controls how the OpenEmbedded build system spawns | ||
| 4151 | interactive terminals on the host development system | ||
| 4152 | (e.g. using the BitBake command with the | ||
| 4153 | <code class="filename">-c devshell</code> command-line option). | ||
| 4154 | For more information, see the | ||
| 4155 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#platdev-appdev-devshell" target="_top">Using a Development Shell</a>" section | ||
| 4156 | in the Yocto Project Development Manual. | ||
| 4157 | </p><p> | ||
| 4158 | You can use the following values for the | ||
| 4159 | <code class="filename">OE_TERMINAL</code> variable: | ||
| 4160 | </p><pre class="literallayout"> | ||
| 4161 | auto | ||
| 4162 | gnome | ||
| 4163 | xfce | ||
| 4164 | rxvt | ||
| 4165 | screen | ||
| 4166 | konsole | ||
| 4167 | none | ||
| 4168 | </pre><p> | ||
| 4169 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3>Konsole support only works for KDE 3.x. | ||
| 4170 | Also, "auto" is the default behavior for | ||
| 4171 | <code class="filename">OE_TERMINAL</code></div><p> | ||
| 4172 | </p></dd></dl></div><div class="glossdiv" title="P"><h3 class="title">P</h3><dl><dt><a id="var-P"></a>P</dt><dd><p>The recipe name and version. | ||
| 4173 | <code class="filename">P</code> is comprised of the following: | ||
| 4174 | </p><pre class="literallayout"> | ||
| 4175 | ${PN}-${PV} | ||
| 4176 | </pre></dd><dt><a id="var-PACKAGE_ARCH"></a>PACKAGE_ARCH</dt><dd><p>The architecture of the resulting package or packages.</p></dd><dt><a id="var-PACKAGE_BEFORE_PN"></a>PACKAGE_BEFORE_PN</dt><dd><p>Enables easily adding packages to | ||
| 4177 | <code class="filename"><a class="link" href="#var-PACKAGES" title="PACKAGES">PACKAGES</a></code> | ||
| 4178 | before <code class="filename">${PN}</code> so that the packages can pick | ||
| 4179 | up files that would normally be included in the default package.</p></dd><dt><a id="var-PACKAGE_CLASSES"></a>PACKAGE_CLASSES</dt><dd><p>This variable, which is set in the <code class="filename">local.conf</code> configuration | ||
| 4180 | file found in the <code class="filename">conf</code> folder of the | ||
| 4181 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>, | ||
| 4182 | specifies the package manager to use when packaging data. | ||
| 4183 | You can provide one or more arguments for the variable with the first | ||
| 4184 | argument being the package manager used to create images: | ||
| 4185 | </p><pre class="literallayout"> | ||
| 4186 | PACKAGE_CLASSES ?= "package_rpm package_deb package_ipk" | ||
| 4187 | </pre><p> | ||
| 4188 | For information on build performance effects as a result of the | ||
| 4189 | package manager use, see | ||
| 4190 | <a class="link" href="#ref-classes-package" title="7.13. Packaging - package*.bbclass">Packaging - <code class="filename">package*.bbclass</code></a> | ||
| 4191 | in this manual. | ||
| 4192 | </p></dd><dt><a id="var-PACKAGE_EXTRA_ARCHS"></a>PACKAGE_EXTRA_ARCHS</dt><dd><p>Specifies the list of architectures compatible with the device CPU. | ||
| 4193 | This variable is useful when you build for several different devices that use | ||
| 4194 | miscellaneous processors such as XScale and ARM926-EJS).</p></dd><dt><a id="var-PACKAGECONFIG"></a>PACKAGECONFIG</dt><dd><p> | ||
| 4195 | This variable provides a means of enabling or disabling | ||
| 4196 | features of a recipe on a per-recipe basis. | ||
| 4197 | The <code class="filename">PACKAGECONFIG</code> | ||
| 4198 | variable itself specifies a space-separated list of the | ||
| 4199 | features to enable. | ||
| 4200 | The features themselves are specified as flags on the | ||
| 4201 | <code class="filename">PACKAGECONFIG</code> variable. | ||
| 4202 | You can provide up to four arguments, which are separated by | ||
| 4203 | commas, to determine the behavior of each feature | ||
| 4204 | when it is enabled or disabled. | ||
| 4205 | You can omit any argument you like but must retain the | ||
| 4206 | separating commas. | ||
| 4207 | The arguments specify the following: | ||
| 4208 | </p><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><p>Extra arguments | ||
| 4209 | that should be added to the configure script argument list | ||
| 4210 | (<a class="link" href="#var-EXTRA_OECONF" title="EXTRA_OECONF"><code class="filename">EXTRA_OECONF</code></a>) | ||
| 4211 | if the feature is enabled.</p></li><li class="listitem"><p>Extra arguments | ||
| 4212 | that should be added to <code class="filename">EXTRA_OECONF</code> | ||
| 4213 | if the feature is disabled. | ||
| 4214 | </p></li><li class="listitem"><p>Additional build dependencies | ||
| 4215 | (<a class="link" href="#var-DEPENDS" title="DEPENDS"><code class="filename">DEPENDS</code></a>) | ||
| 4216 | that should be added if the feature is enabled. | ||
| 4217 | </p></li><li class="listitem"><p>Additional runtime dependencies | ||
| 4218 | (<a class="link" href="#var-RDEPENDS" title="RDEPENDS"><code class="filename">RDEPENDS</code></a>) | ||
| 4219 | that should be added if the feature is enabled. | ||
| 4220 | </p></li></ol></div><p> | ||
| 4221 | </p><p> | ||
| 4222 | Consider the following example taken from the | ||
| 4223 | <code class="filename">librsvg</code> recipe. | ||
| 4224 | In this example the feature is <code class="filename">croco</code>, which | ||
| 4225 | has three arguments that determine the feature's behavior. | ||
| 4226 | </p><pre class="literallayout"> | ||
| 4227 | PACKAGECONFIG ??= "croco" | ||
| 4228 | PACKAGECONFIG[croco] = "--with-croco,--without-croco,libcroco" | ||
| 4229 | </pre><p> | ||
| 4230 | The <code class="filename">--with-croco</code> and | ||
| 4231 | <code class="filename">libcroco</code> arguments apply only if | ||
| 4232 | the feature is enabled. | ||
| 4233 | In this case, <code class="filename">--with-croco</code> is | ||
| 4234 | added to the configure script argument list and | ||
| 4235 | <code class="filename">libcroco</code> is added to | ||
| 4236 | <code class="filename"><a class="link" href="#var-DEPENDS" title="DEPENDS">DEPENDS</a></code>. | ||
| 4237 | On the other hand, if the feature is disabled say through | ||
| 4238 | a <code class="filename">.bbappend</code> file in another layer, then | ||
| 4239 | the second argument <code class="filename">--without-croco</code> is | ||
| 4240 | added to the configure script rather than | ||
| 4241 | <code class="filename">--with-croco</code>. | ||
| 4242 | </p></dd><dt><a id="var-PACKAGES"></a>PACKAGES</dt><dd><p>The list of packages to be created from the recipe. | ||
| 4243 | The default value is the following: | ||
| 4244 | </p><pre class="literallayout"> | ||
| 4245 | ${PN}-dbg ${PN}-staticdev ${PN}-dev ${PN}-doc ${PN}-locale ${PACKAGE_BEFORE_PN} ${PN} | ||
| 4246 | </pre></dd><dt><a id="var-PACKAGES_DYNAMIC"></a>PACKAGES_DYNAMIC</dt><dd><p> | ||
| 4247 | A promise that your recipe satisfies runtime dependencies | ||
| 4248 | for optional modules that are found in other recipes. | ||
| 4249 | <code class="filename">PACKAGES_DYNAMIC</code> | ||
| 4250 | does not actually satisfy the dependencies, it only states that | ||
| 4251 | they should be satisfied. | ||
| 4252 | For example, if a hard, runtime dependency | ||
| 4253 | (<code class="filename">RDEPENDS</code>) of another package is satisfied | ||
| 4254 | at build time through the <code class="filename">PACKAGES_DYNAMIC</code> | ||
| 4255 | variable, but a package with the module name is never actually | ||
| 4256 | produced, then the other package will be broken. | ||
| 4257 | Thus, if you attempt to include that package in an image, | ||
| 4258 | you will get a dependency failure from the packaging system | ||
| 4259 | during <code class="filename">do_rootfs</code>. | ||
| 4260 | Typically, if there is a chance that such a situation can | ||
| 4261 | occur and the package that is not created is valid | ||
| 4262 | without the dependency being satisfied, then you should use | ||
| 4263 | <code class="filename">RRECOMMENDS</code> (a soft runtime dependency) | ||
| 4264 | instead of <code class="filename">RDEPENDS</code>. | ||
| 4265 | </p><p> | ||
| 4266 | For an example of how to use the <code class="filename">PACKAGES_DYNAMIC</code> | ||
| 4267 | variable when you are splitting packages, see the | ||
| 4268 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#handling-optional-module-packaging" target="_top">Handling Optional Module Packaging</a>" section | ||
| 4269 | in the Yocto Project Development Manual. | ||
| 4270 | </p></dd><dt><a id="var-PARALLEL_MAKE"></a>PARALLEL_MAKE</dt><dd><p>Specifies extra options that are passed to the <code class="filename">make</code> command during the | ||
| 4271 | compile tasks. | ||
| 4272 | This variable is usually in the form <code class="filename">-j 4</code>, where the number | ||
| 4273 | represents the maximum number of parallel threads make can run. | ||
| 4274 | If you development host supports multiple cores a good rule of thumb is to set | ||
| 4275 | this variable to twice the number of cores on the host.</p></dd><dt><a id="var-PF"></a>PF</dt><dd><p>Specifies the recipe or package name and includes all version and revision | ||
| 4276 | numbers (i.e. <code class="filename">eglibc-2.13-r20+svnr15508/</code> and | ||
| 4277 | <code class="filename">bash-4.2-r1/</code>). | ||
| 4278 | This variable is comprised of the following: | ||
| 4279 | </p><pre class="literallayout"> | ||
| 4280 | ${PN}-${EXTENDPE}${PV}-${PR} | ||
| 4281 | </pre></dd><dt><a id="var-PN"></a>PN</dt><dd><p>This variable can have two separate functions depending on the context: a recipe | ||
| 4282 | name or a resulting package name.</p><p><code class="filename">PN</code> refers to a recipe name in the context of a file used | ||
| 4283 | by the OpenEmbedded build system as input to create a package. | ||
| 4284 | The name is normally extracted from the recipe file name. | ||
| 4285 | For example, if the recipe is named | ||
| 4286 | <code class="filename">expat_2.0.1.bb</code>, then the default value of <code class="filename">PN</code> | ||
| 4287 | will be "expat".</p><p> | ||
| 4288 | The variable refers to a package name in the context of a file created or produced by the | ||
| 4289 | OpenEmbedded build system.</p><p>If applicable, the <code class="filename">PN</code> variable also contains any special | ||
| 4290 | suffix or prefix. | ||
| 4291 | For example, using <code class="filename">bash</code> to build packages for the native | ||
| 4292 | machine, <code class="filename">PN</code> is <code class="filename">bash-native</code>. | ||
| 4293 | Using <code class="filename">bash</code> to build packages for the target and for Multilib, | ||
| 4294 | <code class="filename">PN</code> would be <code class="filename">bash</code> and | ||
| 4295 | <code class="filename">lib64-bash</code>, respectively. | ||
| 4296 | </p></dd><dt><a id="var-PR"></a>PR</dt><dd><p>The revision of the recipe. | ||
| 4297 | The default value for this variable is "r0". | ||
| 4298 | </p></dd><dt><a id="var-PRINC"></a>PRINC</dt><dd><p>Causes the <code class="filename">PR</code> variable of | ||
| 4299 | <code class="filename">.bbappend</code> files to dynamically increment. | ||
| 4300 | This increment minimizes the impact of layer ordering.</p><p>In order to ensure multiple <code class="filename">.bbappend</code> files can co-exist, | ||
| 4301 | <code class="filename">PRINC</code> should be self referencing. | ||
| 4302 | This variable defaults to 0.</p><p>Following is an example that increments <code class="filename">PR</code> by two: | ||
| 4303 | </p><pre class="literallayout"> | ||
| 4304 | PRINC := "${@int(PRINC) + 2}" | ||
| 4305 | </pre><p> | ||
| 4306 | It is adviseable not to use strings such as ".= '.1'" with the variable because | ||
| 4307 | this usage is very sensitive to layer ordering. | ||
| 4308 | Explicit assignments should be avoided as they cannot adequately represent multiple | ||
| 4309 | <code class="filename">.bbappend</code> files.</p></dd><dt><a id="var-PV"></a>PV</dt><dd><p>The version of the recipe. | ||
| 4310 | The version is normally extracted from the recipe filename. | ||
| 4311 | For example, if the recipe is named | ||
| 4312 | <code class="filename">expat_2.0.1.bb</code>, then the default value of <code class="filename">PV</code> | ||
| 4313 | will be "2.0.1". | ||
| 4314 | <code class="filename">PV</code> is generally not overridden within | ||
| 4315 | a recipe unless it is building an unstable (i.e. development) version from a source code repository | ||
| 4316 | (e.g. Git or Subversion). | ||
| 4317 | </p></dd><dt><a id="var-PE"></a>PE</dt><dd><p> | ||
| 4318 | the epoch of the recipe. | ||
| 4319 | The default value is "0". | ||
| 4320 | The field is used to make upgrades possible when the versioning scheme changes in | ||
| 4321 | some backwards incompatible way. | ||
| 4322 | </p></dd><dt><a id="var-PREFERRED_PROVIDER"></a>PREFERRED_PROVIDER</dt><dd><p> | ||
| 4323 | If multiple recipes provide an item, this variable | ||
| 4324 | determines which recipe should be given preference. | ||
| 4325 | The variable must always be suffixed with the name of the | ||
| 4326 | provided item, and should be set to the | ||
| 4327 | <code class="filename">PN</code> of the recipe | ||
| 4328 | to which you want to give precedence. | ||
| 4329 | Here is an example: | ||
| 4330 | </p><pre class="literallayout"> | ||
| 4331 | PREFERRED_PROVIDER_virtual/xserver = "xserver-xf86" | ||
| 4332 | </pre><p> | ||
| 4333 | </p></dd><dt><a id="var-PREFERRED_VERSION"></a>PREFERRED_VERSION</dt><dd><p> | ||
| 4334 | If there are multiple versions of recipes available, this | ||
| 4335 | variable determines which recipe should be given preference. | ||
| 4336 | The variable must always be suffixed with the <code class="filename">PN</code> | ||
| 4337 | for which to select, and should be set to the | ||
| 4338 | <code class="filename">PV</code> to which you want to give precedence. | ||
| 4339 | You can use the "<code class="filename">%</code>" character as a wildcard | ||
| 4340 | to match any number of characters, which can be useful when | ||
| 4341 | specifying versions that contain long revision number that could | ||
| 4342 | potentially change. | ||
| 4343 | Here are two examples: | ||
| 4344 | </p><pre class="literallayout"> | ||
| 4345 | PREFERRED_VERSION_python = "2.6.6" | ||
| 4346 | PREFERRED_VERSION_linux-yocto = "3.0+git%" | ||
| 4347 | </pre><p> | ||
| 4348 | </p></dd></dl></div><div class="glossdiv" title="R"><h3 class="title">R</h3><dl><dt><a id="var-RCONFLICTS"></a>RCONFLICTS</dt><dd><p>The list of packages that conflict with a package. | ||
| 4349 | Note that the package will not be installed if the conflicting packages are not | ||
| 4350 | first removed.</p><p> | ||
| 4351 | Like all package-controlling variables, you must always use them in | ||
| 4352 | conjunction with a package name override. | ||
| 4353 | Here is an example: | ||
| 4354 | </p><pre class="literallayout"> | ||
| 4355 | RCONFLICTS_${PN} = "another-conflicting-package-name" | ||
| 4356 | </pre><p> | ||
| 4357 | </p></dd><dt><a id="var-RDEPENDS"></a>RDEPENDS</dt><dd><p> | ||
| 4358 | Lists a package's run-time dependencies (i.e. other packages) | ||
| 4359 | that must be installed for the package to be built. | ||
| 4360 | In other words, in order for the package to be built and | ||
| 4361 | run correctly, it depends on the listed packages. | ||
| 4362 | If a package in this list cannot be found, it is probable | ||
| 4363 | that a dependency error would occur before the build. | ||
| 4364 | </p><p> | ||
| 4365 | The names of the variables you list with | ||
| 4366 | <code class="filename">RDEPENDS</code> must be the names of other | ||
| 4367 | packages as listed in the | ||
| 4368 | <a class="link" href="#var-PACKAGES" title="PACKAGES"><code class="filename">PACKAGES</code></a> | ||
| 4369 | variable. | ||
| 4370 | You should not list recipe names (<code class="filename">PN</code>). | ||
| 4371 | </p><p> | ||
| 4372 | Because the <code class="filename">RDEPENDS</code> variable applies | ||
| 4373 | to packages being built, you should | ||
| 4374 | always attach a package name to the variable to specify the | ||
| 4375 | particular run-time package that has the dependency. | ||
| 4376 | For example, suppose you are building a development package | ||
| 4377 | that depends on the <code class="filename">perl</code> package. | ||
| 4378 | In this case, you would use the following | ||
| 4379 | <code class="filename">RDEPENDS</code> statement: | ||
| 4380 | </p><pre class="literallayout"> | ||
| 4381 | RDEPENDS_${PN}-dev += "perl" | ||
| 4382 | </pre><p> | ||
| 4383 | In the example, the package name | ||
| 4384 | (<code class="filename">${PN}-dev</code>) must appear as it would | ||
| 4385 | in the | ||
| 4386 | <code class="filename"><a class="link" href="#var-PACKAGES" title="PACKAGES">PACKAGES</a></code> | ||
| 4387 | namespace before any renaming of the output package by | ||
| 4388 | classes like <code class="filename">debian.bbclass</code>. | ||
| 4389 | </p><p> | ||
| 4390 | In many cases you do not need to explicitly add dependencies | ||
| 4391 | to <code class="filename">RDEPENDS</code> since some automatic | ||
| 4392 | handling occurs: | ||
| 4393 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em><code class="filename">shlibdeps</code></em></span>: If | ||
| 4394 | a run-time package contains a shared library | ||
| 4395 | (<code class="filename">.so</code>), the build | ||
| 4396 | processes the library in order to determine other | ||
| 4397 | libraries to which it is dynamically linked. | ||
| 4398 | The build process adds these libraries to | ||
| 4399 | <code class="filename">RDEPENDS</code> when creating the run-time | ||
| 4400 | package.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">pcdeps</code></em></span>: If | ||
| 4401 | the package ships a <code class="filename">pkg-config</code> | ||
| 4402 | information file, the build process uses this file | ||
| 4403 | to add items to the <code class="filename">RDEPENDS</code> | ||
| 4404 | variable to create the run-time packages. | ||
| 4405 | </p></li></ul></div><p> | ||
| 4406 | </p></dd><dt><a id="var-RRECOMMENDS"></a>RRECOMMENDS</dt><dd><p> | ||
| 4407 | A list of packages that extend the usability of a package being | ||
| 4408 | built. | ||
| 4409 | The package being built does not depend on this list of packages in | ||
| 4410 | order to successfully build, but needs them for the extended usability. | ||
| 4411 | To specify runtime dependencies for packages, see the | ||
| 4412 | <code class="filename"><a class="link" href="#var-RDEPENDS" title="RDEPENDS">RDEPENDS</a></code> variable. | ||
| 4413 | </p><p> | ||
| 4414 | The OpenEmbedded build process automatically installs the list of packages | ||
| 4415 | as part of the built package. | ||
| 4416 | However, you can remove them later if you want. | ||
| 4417 | If, during the build, a package from the list cannot be found, the build | ||
| 4418 | process continues without an error. | ||
| 4419 | </p><p> | ||
| 4420 | Because the <code class="filename">RRECOMMENDS</code> variable applies to packages | ||
| 4421 | being built, you should | ||
| 4422 | always attach an override to the variable to specify the particular package | ||
| 4423 | whose usability is being extended. | ||
| 4424 | For example, suppose you are building a development package that is extended | ||
| 4425 | to support wireless functionality. | ||
| 4426 | In this case, you would use the following: | ||
| 4427 | </p><pre class="literallayout"> | ||
| 4428 | RRECOMMENDS_${PN}-dev += "<wireless_package_name>" | ||
| 4429 | </pre><p> | ||
| 4430 | In the example, the package name (<code class="filename">${PN}-dev</code>) must | ||
| 4431 | appear as it would in the | ||
| 4432 | <code class="filename"><a class="link" href="#var-PACKAGES" title="PACKAGES">PACKAGES</a></code> namespace before any | ||
| 4433 | renaming of the output package by classes like <code class="filename">debian.bbclass</code>. | ||
| 4434 | </p></dd><dt><a id="var-RREPLACES"></a>RREPLACES</dt><dd><p>The list of packages that are replaced with this package.</p></dd></dl></div><div class="glossdiv" title="S"><h3 class="title">S</h3><dl><dt><a id="var-S"></a>S</dt><dd><p> | ||
| 4435 | The location in the <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a> | ||
| 4436 | where unpacked package source code resides. | ||
| 4437 | This location is within the working directory | ||
| 4438 | (<code class="filename"><a class="link" href="#var-WORKDIR" title="WORKDIR">WORKDIR</a></code>), which | ||
| 4439 | is not static. | ||
| 4440 | The unpacked source location depends on the package name | ||
| 4441 | (<code class="filename"><a class="link" href="#var-PN" title="PN">PN</a></code>) and | ||
| 4442 | package version (<code class="filename"><a class="link" href="#var-PV" title="PV">PV</a></code>) as | ||
| 4443 | follows: | ||
| 4444 | </p><pre class="literallayout"> | ||
| 4445 | ${WORKDIR}/${PN}/${PV} | ||
| 4446 | </pre><p> | ||
| 4447 | As an example, assume a | ||
| 4448 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a> top-level | ||
| 4449 | folder named <code class="filename">poky</code> | ||
| 4450 | and a default <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a> | ||
| 4451 | at <code class="filename">poky/build</code>. | ||
| 4452 | In this case, the working directory the build system uses to build | ||
| 4453 | the <code class="filename">db</code> package is the following: | ||
| 4454 | </p><pre class="literallayout"> | ||
| 4455 | ~/poky/build/tmp/work/qemux86-poky-linux/db/5.1.19-r3/db-5.1.19 | ||
| 4456 | </pre><p> | ||
| 4457 | </p></dd><dt><a id="var-SDKIMAGE_FEATURES"></a>SDKIMAGE_FEATURES</dt><dd><p>Equivalent to | ||
| 4458 | <code class="filename"><a class="link" href="#var-IMAGE_FEATURES" title="IMAGE_FEATURES">IMAGE_FEATURES</a></code>. | ||
| 4459 | However, this variable applies to the SDK generated from an image using | ||
| 4460 | <code class="filename">bitbake -c populate_sdk imagename</code>). | ||
| 4461 | </p></dd><dt><a id="var-SECTION"></a>SECTION</dt><dd><p>The section in which packages should be categorized. | ||
| 4462 | Package management utilities can make use of this variable.</p></dd><dt><a id="var-SELECTED_OPTIMIZATION"></a>SELECTED_OPTIMIZATION</dt><dd><p> | ||
| 4463 | The variable takes the value of | ||
| 4464 | <code class="filename"><a class="link" href="#var-FULL_OPTIMIZATION" title="FULL_OPTIMIZATION">FULL_OPTIMIZATION</a></code> | ||
| 4465 | unless <code class="filename"><a class="link" href="#var-DEBUG_BUILD" title="DEBUG_BUILD">DEBUG_BUILD</a></code> = "1". | ||
| 4466 | In this case the value of | ||
| 4467 | <code class="filename"><a class="link" href="#var-DEBUG_OPTIMIZATION" title="DEBUG_OPTIMIZATION">DEBUG_OPTIMIZATION</a></code> is used. | ||
| 4468 | </p></dd><dt><a id="var-SERIAL_CONSOLE"></a>SERIAL_CONSOLE</dt><dd><p>The speed and device for the serial port used to attach the serial console. | ||
| 4469 | This variable is given to the kernel as the "console" | ||
| 4470 | parameter and after booting occurs <code class="filename">getty</code> is started on that port | ||
| 4471 | so remote login is possible.</p></dd><dt><a id="var-SITEINFO_ENDIANNESS"></a>SITEINFO_ENDIANNESS</dt><dd><p> | ||
| 4472 | Specifies the endian byte order of the target system. | ||
| 4473 | The value should be either "le" for little-endian or "be" for big-endian. | ||
| 4474 | </p></dd><dt><a id="var-SITEINFO_BITS"></a>SITEINFO_BITS</dt><dd><p> | ||
| 4475 | Specifies the number of bits for the target system CPU. | ||
| 4476 | The value should be either "32" or "64". | ||
| 4477 | </p></dd><dt><a id="var-SPECIAL_PKGSUFFIX"></a>SPECIAL_PKGSUFFIX</dt><dd><p> | ||
| 4478 | A list of prefixes for <a class="link" href="#var-PN" title="PN"><code class="filename">PN</code></a> used by the | ||
| 4479 | OpenEmbedded build system to create variants of recipes or packages. | ||
| 4480 | The list specifies the prefixes to strip off during certain circumstances | ||
| 4481 | such as the generation of the <a class="link" href="#var-BPN" title="BPN"><code class="filename">BPN</code></a> variable. | ||
| 4482 | </p></dd><dt><a id="var-SRC_URI"></a>SRC_URI</dt><dd><p>The list of source files - local or remote. | ||
| 4483 | This variable tells the OpenEmbedded build system which bits to pull | ||
| 4484 | in for the build and how to pull them in. | ||
| 4485 | For example, if the recipe only needs to fetch a tarball from the | ||
| 4486 | internet, the recipe uses a single <code class="filename">SRC_URI</code> entry. | ||
| 4487 | On the other hand, if the recipe needs to fetch a tarball, apply | ||
| 4488 | two patches, and include a custom file, the recipe would include four | ||
| 4489 | instances of the variable.</p><p>The following list explains the available URI protocols: | ||
| 4490 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em><code class="filename">file://</code> -</em></span> Fetches files, which is usually | ||
| 4491 | a file shipped with the metadata, from the local machine. | ||
| 4492 | The path is relative to the | ||
| 4493 | <a class="link" href="#var-FILESPATH" title="FILESPATH"><code class="filename">FILESPATH</code></a> | ||
| 4494 | variable. | ||
| 4495 | Thus, the build system searches, in order, from the following directories, | ||
| 4496 | which are assumed to be a subdirectories of the directory in which the | ||
| 4497 | recipe file resides: | ||
| 4498 | </p><div class="itemizedlist"><ul class="itemizedlist" type="circle"><li class="listitem"><p><span class="emphasis"><em><code class="filename">${PN}</code> -</em></span> The recipe name | ||
| 4499 | with any special suffix or prefix, if applicable. | ||
| 4500 | For example, using <code class="filename">bash</code> to build for the native | ||
| 4501 | machine, <code class="filename">PN</code> is <code class="filename">bash-native</code>. | ||
| 4502 | Using <code class="filename">bash</code> to build for the target and for Multilib, | ||
| 4503 | <code class="filename">PN</code> would be <code class="filename">bash</code> and | ||
| 4504 | <code class="filename">lib64-bash</code>, respectively. | ||
| 4505 | </p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">${PF}</code> - </em></span> | ||
| 4506 | <code class="filename">${PN}-${EXTENDPE}${PV}-${PR}</code>. | ||
| 4507 | The recipe name including all version and revision numbers | ||
| 4508 | (i.e. <code class="filename">eglibc-2.13-r20+svnr15508/</code> and | ||
| 4509 | <code class="filename">bash-4.2-r1/</code>).</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">${P}</code> -</em></span> | ||
| 4510 | <code class="filename">${PN}-${PV}</code>. | ||
| 4511 | The recipe name and version (i.e. <code class="filename">bash-4.2</code>). | ||
| 4512 | </p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">${BPN}</code> -</em></span> The | ||
| 4513 | base recipe name without any special suffix or version numbers. | ||
| 4514 | </p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">${BP}</code> -</em></span> | ||
| 4515 | <code class="filename">${BPN}-${PV}</code>. | ||
| 4516 | The base recipe name and version but without any special | ||
| 4517 | package name suffix.</p></li><li class="listitem"><p><span class="emphasis"><em>Files -</em></span> Files beneath the directory in which the recipe | ||
| 4518 | resides.</p></li><li class="listitem"><p><span class="emphasis"><em>Directory -</em></span> The directory itself in which the recipe | ||
| 4519 | resides.</p></li></ul></div></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">bzr://</code> -</em></span> Fetches files from a | ||
| 4520 | Bazaar revision control repository.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">git://</code> -</em></span> Fetches files from a | ||
| 4521 | Git revision control repository.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">osc://</code> -</em></span> Fetches files from | ||
| 4522 | an OSC (OpenSuse Build service) revision control repository.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">repo://</code> -</em></span> Fetches files from | ||
| 4523 | a repo (Git) repository.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">svk://</code> -</em></span> Fetches files from | ||
| 4524 | an SVK revision control repository.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">http://</code> -</em></span> Fetches files from | ||
| 4525 | the Internet using <code class="filename">http</code>.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">https://</code> -</em></span> Fetches files | ||
| 4526 | from the Internet using <code class="filename">https</code>.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">ftp://</code> -</em></span> Fetches files | ||
| 4527 | from the Internet using <code class="filename">ftp</code>.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">cvs://</code> -</em></span> Fetches files from | ||
| 4528 | a CVS revision control repository.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">hg://</code> -</em></span> Fetches files from | ||
| 4529 | a Mercurial (<code class="filename">hg</code>) revision control repository.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">p4://</code> -</em></span> Fetches files from | ||
| 4530 | a Perforce (<code class="filename">p4</code>) revision control repository.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">ssh://</code> -</em></span> Fetches files from | ||
| 4531 | a secure shell.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">svn://</code> -</em></span> Fetches files from | ||
| 4532 | a Subversion (<code class="filename">svn</code>) revision control repository.</p></li></ul></div><p> | ||
| 4533 | </p><p>Standard and recipe-specific options for <code class="filename">SRC_URI</code> exist. | ||
| 4534 | Here are standard options: | ||
| 4535 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em><code class="filename">apply</code> -</em></span> Whether to apply | ||
| 4536 | the patch or not. | ||
| 4537 | The default action is to apply the patch.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">striplevel</code> -</em></span> Which | ||
| 4538 | striplevel to use when applying the patch. | ||
| 4539 | The default level is 1.</p></li></ul></div><p> | ||
| 4540 | </p><p>Here are options specific to recipes building code from a revision control system: | ||
| 4541 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em><code class="filename">mindate</code> -</em></span> Only applies | ||
| 4542 | the patch if <a class="link" href="#var-SRCDATE" title="SRCDATE"><code class="filename">SRCDATE</code></a> | ||
| 4543 | is equal to or greater than <code class="filename">mindate</code>.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">maxdate</code> -</em></span> Only applies | ||
| 4544 | the patch if <a class="link" href="#var-SRCDATE" title="SRCDATE"><code class="filename">SRCDATE</code></a> | ||
| 4545 | is not later than <code class="filename">mindate</code>.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">minrev</code> -</em></span> Only applies | ||
| 4546 | the patch if <a class="link" href="#var-SRCREV" title="SRCREV"><code class="filename">SRCREV</code></a> | ||
| 4547 | is equal to or greater than <code class="filename">minrev</code>.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">maxrev</code> -</em></span> Only applies | ||
| 4548 | the patch if <a class="link" href="#var-SRCREV" title="SRCREV"><code class="filename">SRCREV</code></a> | ||
| 4549 | is not later than <code class="filename">maxrev</code>.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">rev</code> -</em></span> Only applies the | ||
| 4550 | patch if <a class="link" href="#var-SRCREV" title="SRCREV"><code class="filename">SRCREV</code></a> | ||
| 4551 | is equal to <code class="filename">rev</code>.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">notrev</code> -</em></span> Only applies | ||
| 4552 | the patch if <a class="link" href="#var-SRCREV" title="SRCREV"><code class="filename">SRCREV</code></a> | ||
| 4553 | is not equal to <code class="filename">rev</code>.</p></li></ul></div><p> | ||
| 4554 | </p><p>Here are some additional options worth mentioning: | ||
| 4555 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em><code class="filename">unpack</code> -</em></span> Controls | ||
| 4556 | whether or not to unpack the file if it is an archive. | ||
| 4557 | The default action is to upack the file.</p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">subdir</code> -</em></span> Places the file | ||
| 4558 | (or extracts its contents) into the specified | ||
| 4559 | subdirectory of <a class="link" href="#var-WORKDIR" title="WORKDIR"><code class="filename">WORKDIR</code></a>. | ||
| 4560 | This option is useful for unusual tarballs or other archives that | ||
| 4561 | don't have their files already in a subdirectory within the archive. | ||
| 4562 | </p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">name</code> -</em></span> Specifies a | ||
| 4563 | name to be used for association with <code class="filename">SRC_URI</code> checksums | ||
| 4564 | when you have more than one file specified in <code class="filename">SRC_URI</code>. | ||
| 4565 | </p></li><li class="listitem"><p><span class="emphasis"><em><code class="filename">downloadfilename</code> -</em></span> Specifies | ||
| 4566 | the filename used when storing the downloaded file.</p></li></ul></div><p> | ||
| 4567 | </p></dd><dt><a id="var-SRC_URI_OVERRIDES_PACKAGE_ARCH"></a>SRC_URI_OVERRIDES_PACKAGE_ARCH</dt><dd><p></p><p> | ||
| 4568 | By default, the OpenEmbedded build system automatically detects whether | ||
| 4569 | <code class="filename"><a class="link" href="#var-SRC_URI" title="SRC_URI">SRC_URI</a></code> | ||
| 4570 | contains files that are machine-specific. | ||
| 4571 | If so, the build system automatically changes | ||
| 4572 | <code class="filename"><a class="link" href="#var-PACKAGE_ARCH" title="PACKAGE_ARCH">PACKAGE_ARCH</a></code>. | ||
| 4573 | Setting this variable to "0" disables this behavior. | ||
| 4574 | </p></dd><dt><a id="var-SRCDATE"></a>SRCDATE</dt><dd><p> | ||
| 4575 | The date of the source code used to build the package. | ||
| 4576 | This variable applies only if the source was fetched from a Source Code Manager (SCM). | ||
| 4577 | </p></dd><dt><a id="var-SRCREV"></a>SRCREV</dt><dd><p> | ||
| 4578 | The revision of the source code used to build the package. | ||
| 4579 | This variable applies to Subversion, Git, Mercurial and Bazaar | ||
| 4580 | only. | ||
| 4581 | Note that if you wish to build a fixed revision and you wish | ||
| 4582 | to avoid performing a query on the remote repository every time | ||
| 4583 | BitBake parses your recipe, you should specify a <code class="filename">SRCREV</code> that is a | ||
| 4584 | full revision identifier and not just a tag. | ||
| 4585 | </p></dd><dt><a id="var-SSTATE_DIR"></a>SSTATE_DIR</dt><dd><p>The directory for the shared state.</p></dd><dt><a id="var-SSTATE_MIRRORS"></a>SSTATE_MIRRORS</dt><dd><p> | ||
| 4586 | Configures the OpenEmbedded build system to search other | ||
| 4587 | mirror locations for prebuilt cache data objects before | ||
| 4588 | building out the data. | ||
| 4589 | This variable works like fetcher | ||
| 4590 | <code class="filename">MIRRORS</code>/<code class="filename">PREMIRRORS</code> | ||
| 4591 | and points to the cache locations to check for the shared | ||
| 4592 | objects. | ||
| 4593 | </p><p> | ||
| 4594 | You can specify a filesystem directory or a remote URL such | ||
| 4595 | as HTTP or FTP. | ||
| 4596 | The locations you specify need to contain the shared state | ||
| 4597 | cache (sstate-cache) results from previous builds. | ||
| 4598 | The sstate-cache you point to can also be from builds on | ||
| 4599 | other machines. | ||
| 4600 | </p><p> | ||
| 4601 | If a mirror uses the same structure as | ||
| 4602 | <a class="link" href="#var-SSTATE_DIR" title="SSTATE_DIR"><code class="filename">SSTATE_DIR</code></a>, | ||
| 4603 | you need to add | ||
| 4604 | "PATH" at the end as shown in the examples below. | ||
| 4605 | The build system substitues the correct path within the | ||
| 4606 | directory structure. | ||
| 4607 | </p><pre class="literallayout"> | ||
| 4608 | SSTATE_MIRRORS ?= "\ | ||
| 4609 | file://.* http://someserver.tld/share/sstate/PATH \n \ | ||
| 4610 | file://.* file:///some/local/dir/sstate/PATH" | ||
| 4611 | </pre><p> | ||
| 4612 | </p></dd><dt><a id="var-STAGING_KERNEL_DIR"></a>STAGING_KERNEL_DIR</dt><dd><p> | ||
| 4613 | The directory with kernel headers that are required to build out-of-tree | ||
| 4614 | modules. | ||
| 4615 | </p></dd><dt><a id="var-STAMP"></a>STAMP</dt><dd><p> | ||
| 4616 | Specifies the base path used to create recipe stamp files. | ||
| 4617 | The path to an actual stamp file is constructed by evaluating this | ||
| 4618 | string and then appending additional information. | ||
| 4619 | Currently, the default assignment for <code class="filename">STAMP</code> | ||
| 4620 | as set in the <code class="filename">meta/conf/bitbake.conf</code> file | ||
| 4621 | is: | ||
| 4622 | </p><pre class="literallayout"> | ||
| 4623 | STAMP = "${TMPDIR}/stamps/${MULTIMACH_TARGET_SYS}/${PN}/${EXTENDPE}${PV}-${PR}" | ||
| 4624 | </pre><p> | ||
| 4625 | See <a class="link" href="#var-TMPDIR" title="TMPDIR"><code class="filename">TMPDIR</code></a>, | ||
| 4626 | <a class="link" href="#var-MULTIMACH_TARGET_SYS" title="MULTIMACH_TARGET_SYS"><code class="filename">MULTIMACH_TARGET_SYS</code></a>, | ||
| 4627 | <a class="link" href="#var-PN" title="PN"><code class="filename">PN</code></a>, | ||
| 4628 | <a class="link" href="#var-EXTENDPE" title="EXTENDPE"><code class="filename">EXTENDPE</code></a>, | ||
| 4629 | <a class="link" href="#var-PV" title="PV"><code class="filename">PV</code></a>, and | ||
| 4630 | <a class="link" href="#var-PR" title="PR"><code class="filename">PR</code></a> for related variable | ||
| 4631 | information. | ||
| 4632 | </p></dd><dt><a id="var-SUMMARY"></a>SUMMARY</dt><dd><p>The short (72 characters or less) summary of the binary package for packaging | ||
| 4633 | systems such as <code class="filename">opkg</code>, <code class="filename">rpm</code> or | ||
| 4634 | <code class="filename">dpkg</code>. | ||
| 4635 | By default, <code class="filename">SUMMARY</code> is used to define | ||
| 4636 | the <a class="link" href="#var-DESCRIPTION" title="DESCRIPTION"><code class="filename">DESCRIPTION</code></a> | ||
| 4637 | variable if <code class="filename">DESCRIPTION</code> is not set | ||
| 4638 | in the recipe. | ||
| 4639 | </p></dd></dl></div><div class="glossdiv" title="T"><h3 class="title">T</h3><dl><dt><a id="var-T"></a>T</dt><dd><p>This variable points to a directory were Bitbake places temporary | ||
| 4640 | files when building a particular package. | ||
| 4641 | It is typically set as follows: | ||
| 4642 | </p><pre class="literallayout"> | ||
| 4643 | T = ${WORKDIR}/temp | ||
| 4644 | </pre><p> | ||
| 4645 | The <a class="link" href="#var-WORKDIR" title="WORKDIR"><code class="filename">WORKDIR</code></a> | ||
| 4646 | is the directory into which Bitbake unpacks and builds the package. | ||
| 4647 | The default <code class="filename">bitbake.conf</code> file sets this variable.</p><p>The <code class="filename">T</code> variable is not to be confused with | ||
| 4648 | the <a class="link" href="#var-TMPDIR" title="TMPDIR"><code class="filename">TMPDIR</code></a> variable, | ||
| 4649 | which points to the root of the directory tree where Bitbake | ||
| 4650 | places the output of an entire build. | ||
| 4651 | </p></dd><dt><a id="var-TARGET_ARCH"></a>TARGET_ARCH</dt><dd><p>The architecture of the device being built. | ||
| 4652 | While a number of values are possible, the OpenEmbedded build system primarily supports | ||
| 4653 | <code class="filename">arm</code> and <code class="filename">i586</code>.</p></dd><dt><a id="var-TARGET_CFLAGS"></a>TARGET_CFLAGS</dt><dd><p> | ||
| 4654 | Flags passed to the C compiler for the target system. | ||
| 4655 | This variable evaluates to the same as | ||
| 4656 | <code class="filename"><a class="link" href="#var-CFLAGS" title="CFLAGS">CFLAGS</a></code>. | ||
| 4657 | </p></dd><dt><a id="var-TARGET_FPU"></a>TARGET_FPU</dt><dd><p>Specifies the method for handling FPU code. | ||
| 4658 | For FPU-less targets, which include most ARM CPUs, the variable must be | ||
| 4659 | set to "soft". | ||
| 4660 | If not, the kernel emulation gets used, which results in a performance penalty.</p></dd><dt><a id="var-TARGET_OS"></a>TARGET_OS</dt><dd><p>Specifies the target's operating system. | ||
| 4661 | The variable can be set to "linux" for <code class="filename">eglibc</code>-based systems and | ||
| 4662 | to "linux-uclibc" for <code class="filename">uclibc</code>. | ||
| 4663 | For ARM/EABI targets, there are also "linux-gnueabi" and | ||
| 4664 | "linux-uclibc-gnueabi" values possible.</p></dd><dt><a id="var-TCLIBC"></a>TCLIBC</dt><dd><p> | ||
| 4665 | Specifies which variant of the GNU standard C library (<code class="filename">libc</code>) | ||
| 4666 | to use during the build process. | ||
| 4667 | This variable replaces <code class="filename">POKYLIBC</code>, which is no longer | ||
| 4668 | supported. | ||
| 4669 | </p><p> | ||
| 4670 | You can select <code class="filename">eglibc</code> or <code class="filename">uclibc</code>. | ||
| 4671 | </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3> | ||
| 4672 | This release of the Yocto Project does not support the | ||
| 4673 | <code class="filename">glibc</code> implementation of <code class="filename">libc</code>. | ||
| 4674 | </div><p> | ||
| 4675 | </p></dd><dt><a id="var-TCMODE"></a>TCMODE</dt><dd><p> | ||
| 4676 | The toolchain selector. | ||
| 4677 | This variable replaces <code class="filename">POKYMODE</code>, which is no longer | ||
| 4678 | supported. | ||
| 4679 | </p><p> | ||
| 4680 | The <code class="filename">TCMODE</code> variable selects the external toolchain | ||
| 4681 | built using the OpenEmbedded build system or a few supported combinations of | ||
| 4682 | the upstream GCC or CodeSourcery Labs toolchain. | ||
| 4683 | The variable identifies the <code class="filename">tcmode-*</code> files used in | ||
| 4684 | the <code class="filename">meta/conf/distro/include</code> directory, which is found in the | ||
| 4685 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 4686 | </p><p> | ||
| 4687 | By default, <code class="filename">TCMODE</code> is set to "default", which | ||
| 4688 | chooses the <code class="filename">tcmode-default.inc</code> file. | ||
| 4689 | The variable is similar to | ||
| 4690 | <a class="link" href="#var-TCLIBC" title="TCLIBC"><code class="filename">TCLIBC</code></a>, which controls | ||
| 4691 | the variant of the GNU standard C library (<code class="filename">libc</code>) | ||
| 4692 | used during the build process: <code class="filename">eglibc</code> or <code class="filename">uclibc</code>. | ||
| 4693 | </p></dd><dt><a id="var-TMPDIR"></a>TMPDIR</dt><dd><p> | ||
| 4694 | This variable is the temporary directory the OpenEmbedded build system | ||
| 4695 | uses when it does its work building images. | ||
| 4696 | By default, the <code class="filename">TMPDIR</code> variable is named | ||
| 4697 | <code class="filename">tmp</code> within the | ||
| 4698 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>. | ||
| 4699 | </p><p> | ||
| 4700 | If you want to establish this directory in a location other than the | ||
| 4701 | default, you can uncomment the following statement in the | ||
| 4702 | <code class="filename">conf/local.conf</code> file in the | ||
| 4703 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>: | ||
| 4704 | </p><pre class="literallayout"> | ||
| 4705 | #TMPDIR = "${TOPDIR}/tmp" | ||
| 4706 | </pre><p> | ||
| 4707 | </p></dd><dt><a id="var-TOPDIR"></a>TOPDIR</dt><dd><p> | ||
| 4708 | This variable is the | ||
| 4709 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a>. | ||
| 4710 | BitBake automatically sets this variable. | ||
| 4711 | The OpenEmbedded build system uses the Build Directory when building images. | ||
| 4712 | </p></dd></dl></div><div class="glossdiv" title="W"><h3 class="title">W</h3><dl><dt><a id="var-WORKDIR"></a>WORKDIR</dt><dd><p> | ||
| 4713 | The pathname of the working directory in which the OpenEmbedded build system | ||
| 4714 | builds a recipe. | ||
| 4715 | This directory is located within the | ||
| 4716 | <a class="link" href="#var-TMPDIR" title="TMPDIR"><code class="filename">TMPDIR</code></a> directory structure and changes | ||
| 4717 | as different packages are built. | ||
| 4718 | </p><p> | ||
| 4719 | The actual <code class="filename">WORKDIR</code> directory depends on several things: | ||
| 4720 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem">The temporary directory - <a class="link" href="#var-TMPDIR" title="TMPDIR"><code class="filename">TMPDIR</code></a></li><li class="listitem">The package architecture - <a class="link" href="#var-PACKAGE_ARCH" title="PACKAGE_ARCH"><code class="filename">PACKAGE_ARCH</code></a></li><li class="listitem">The target machine - <a class="link" href="#var-MACHINE" title="MACHINE"><code class="filename">MACHINE</code></a></li><li class="listitem">The target operating system - <a class="link" href="#var-TARGET_OS" title="TARGET_OS"><code class="filename">TARGET_OS</code></a></li><li class="listitem">The recipe name - <a class="link" href="#var-PN" title="PN"><code class="filename">PN</code></a></li><li class="listitem">The recipe version - <a class="link" href="#var-PV" title="PV"><code class="filename">PV</code></a></li><li class="listitem">The recipe revision - <a class="link" href="#var-PR" title="PR"><code class="filename">PR</code></a></li></ul></div><p> | ||
| 4721 | </p><p> | ||
| 4722 | For packages that are not dependent on a particular machine, | ||
| 4723 | <code class="filename">WORKDIR</code> is defined as follows: | ||
| 4724 | </p><pre class="literallayout"> | ||
| 4725 | ${TMPDIR}/work/${PACKAGE_ARCH}-poky-${TARGET_OS}/${PN}/${PV}-${PR} | ||
| 4726 | </pre><p> | ||
| 4727 | As an example, assume a | ||
| 4728 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a> top-level | ||
| 4729 | folder name <code class="filename">poky</code> and a default | ||
| 4730 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">Build Directory</a> | ||
| 4731 | at <code class="filename">poky/build</code>. | ||
| 4732 | In this case, the working directory the build system uses to build | ||
| 4733 | the <code class="filename">v86d</code> package is the following: | ||
| 4734 | </p><pre class="literallayout"> | ||
| 4735 | ~/poky/build/tmp/work/qemux86-poky-linux/v86d/01.9-r0 | ||
| 4736 | </pre><p> | ||
| 4737 | </p><p> | ||
| 4738 | For packages that are dependent on a particular machine, <code class="filename">WORKDIR</code> | ||
| 4739 | is defined slightly different: | ||
| 4740 | </p><pre class="literallayout"> | ||
| 4741 | ${TMPDIR}/work/${MACHINE}-poky-${TARGET_OS}/${PN}/${PV}-${PR} | ||
| 4742 | </pre><p> | ||
| 4743 | As an example, again assume a Source Directory top-level folder | ||
| 4744 | named <code class="filename">poky</code> and a default Build Directory | ||
| 4745 | at <code class="filename">poky/build</code>. | ||
| 4746 | In this case, the working directory the build system uses to build | ||
| 4747 | the <code class="filename">acl</code> recipe, which is being built for a | ||
| 4748 | MIPS-based device, is the following: | ||
| 4749 | </p><pre class="literallayout"> | ||
| 4750 | ~/poky/build/tmp/work/mips-poky-linux/acl/2.2.51-r2 | ||
| 4751 | </pre><p> | ||
| 4752 | </p></dd></dl></div></div></div> | ||
| 4753 | |||
| 4754 | <div class="chapter" title="Chapter 11. Variable Context"><div class="titlepage"><div><div><h2 class="title"><a id="ref-varlocality"></a>Chapter 11. Variable Context</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="section"><a href="#ref-varlocality-configuration">11.1. Configuration</a></span></dt><dd><dl><dt><span class="section"><a href="#ref-varlocality-config-distro">11.1.1. Distribution (Distro)</a></span></dt><dt><span class="section"><a href="#ref-varlocality-config-machine">11.1.2. Machine</a></span></dt><dt><span class="section"><a href="#ref-varlocality-config-local">11.1.3. Local</a></span></dt></dl></dd><dt><span class="section"><a href="#ref-varlocality-recipes">11.2. Recipes</a></span></dt><dd><dl><dt><span class="section"><a href="#ref-varlocality-recipe-required">11.2.1. Required</a></span></dt><dt><span class="section"><a href="#ref-varlocality-recipe-dependencies">11.2.2. Dependencies</a></span></dt><dt><span class="section"><a href="#ref-varlocality-recipe-paths">11.2.3. Paths</a></span></dt><dt><span class="section"><a href="#ref-varlocality-recipe-build">11.2.4. Extra Build Information</a></span></dt></dl></dd></dl></div><p> | ||
| 4755 | While most variables can be used in almost any context such as | ||
| 4756 | <code class="filename">.conf</code>, <code class="filename">.bbclass</code>, | ||
| 4757 | <code class="filename">.inc</code>, and <code class="filename">.bb</code> files, | ||
| 4758 | some variables are often associated with a particular locality or context. | ||
| 4759 | This chapter describes some common associations. | ||
| 4760 | </p><div class="section" title="11.1. Configuration"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-varlocality-configuration"></a>11.1. Configuration</h2></div></div></div><p> | ||
| 4761 | The following subsections provide lists of variables whose context is | ||
| 4762 | configuration: distribution, machine, and local. | ||
| 4763 | </p><div class="section" title="11.1.1. Distribution (Distro)"><div class="titlepage"><div><div><h3 class="title"><a id="ref-varlocality-config-distro"></a>11.1.1. Distribution (Distro)</h3></div></div></div><p> | ||
| 4764 | This section lists variables whose context is the distribution, or distro. | ||
| 4765 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><code class="filename"><a class="link" href="#var-DISTRO" title="DISTRO">DISTRO</a></code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-DISTRO_NAME" title="DISTRO_NAME">DISTRO_NAME</a></code> | ||
| 4766 | </p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-DISTRO_VERSION" title="DISTRO_VERSION">DISTRO_VERSION</a> | ||
| 4767 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-MAINTAINER" title="MAINTAINER">MAINTAINER</a></code> | ||
| 4768 | </p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-PACKAGE_CLASSES" title="PACKAGE_CLASSES">PACKAGE_CLASSES</a> | ||
| 4769 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-TARGET_OS" title="TARGET_OS">TARGET_OS</a></code> | ||
| 4770 | </p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-TARGET_FPU" title="TARGET_FPU">TARGET_FPU</a></code> | ||
| 4771 | </p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-TCMODE" title="TCMODE">TCMODE</a></code> | ||
| 4772 | </p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-TCLIBC" title="TCLIBC">TCLIBC</a></code> | ||
| 4773 | </p></li></ul></div><p> | ||
| 4774 | </p></div><div class="section" title="11.1.2. Machine"><div class="titlepage"><div><div><h3 class="title"><a id="ref-varlocality-config-machine"></a>11.1.2. Machine</h3></div></div></div><p> | ||
| 4775 | This section lists variables whose context is the machine. | ||
| 4776 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><code class="filename"><a class="link" href="#var-TARGET_ARCH" title="TARGET_ARCH">TARGET_ARCH</a></code> | ||
| 4777 | </p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-SERIAL_CONSOLE" title="SERIAL_CONSOLE">SERIAL_CONSOLE</a> | ||
| 4778 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-PACKAGE_EXTRA_ARCHS" title="PACKAGE_EXTRA_ARCHS">PACKAGE_EXTRA_ARCHS</a> | ||
| 4779 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-IMAGE_FSTYPES" title="IMAGE_FSTYPES">IMAGE_FSTYPES</a> | ||
| 4780 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-MACHINE_FEATURES" title="MACHINE_FEATURES">MACHINE_FEATURES</a> | ||
| 4781 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-MACHINE_EXTRA_RDEPENDS" title="MACHINE_EXTRA_RDEPENDS">MACHINE_EXTRA_RDEPENDS | ||
| 4782 | </a></code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-MACHINE_EXTRA_RRECOMMENDS" title="MACHINE_EXTRA_RRECOMMENDS">MACHINE_EXTRA_RRECOMMENDS | ||
| 4783 | </a></code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS" title="MACHINE_ESSENTIAL_EXTRA_RDEPENDS">MACHINE_ESSENTIAL_EXTRA_RDEPENDS | ||
| 4784 | </a></code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS" title="MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS"> | ||
| 4785 | MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</a></code></p></li></ul></div><p> | ||
| 4786 | </p></div><div class="section" title="11.1.3. Local"><div class="titlepage"><div><div><h3 class="title"><a id="ref-varlocality-config-local"></a>11.1.3. Local</h3></div></div></div><p> | ||
| 4787 | This section lists variables whose context is the local configuration through the | ||
| 4788 | <code class="filename">local.conf</code> file. | ||
| 4789 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><code class="filename"><a class="link" href="#var-DISTRO" title="DISTRO">DISTRO</a></code> | ||
| 4790 | </p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-MACHINE" title="MACHINE">MACHINE</a></code> | ||
| 4791 | </p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-DL_DIR" title="DL_DIR">DL_DIR</a></code> | ||
| 4792 | </p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-BBFILES" title="BBFILES">BBFILES</a></code> | ||
| 4793 | </p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-EXTRA_IMAGE_FEATURES" title="EXTRA_IMAGE_FEATURES">EXTRA_IMAGE_FEATURES | ||
| 4794 | </a></code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-PACKAGE_CLASSES" title="PACKAGE_CLASSES">PACKAGE_CLASSES</a> | ||
| 4795 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-BB_NUMBER_THREADS" title="BB_NUMBER_THREADS">BB_NUMBER_THREADS</a> | ||
| 4796 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-BBINCLUDELOGS" title="BBINCLUDELOGS">BBINCLUDELOGS</a> | ||
| 4797 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-ENABLE_BINARY_LOCALE_GENERATION" title="ENABLE_BINARY_LOCALE_GENERATION"> | ||
| 4798 | ENABLE_BINARY_LOCALE_GENERATION</a></code></p></li></ul></div><p> | ||
| 4799 | </p></div></div><div class="section" title="11.2. Recipes"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ref-varlocality-recipes"></a>11.2. Recipes</h2></div></div></div><p> | ||
| 4800 | The following subsections provide lists of variables whose context is | ||
| 4801 | recipes: required, dependencies, path, and extra build information. | ||
| 4802 | </p><div class="section" title="11.2.1. Required"><div class="titlepage"><div><div><h3 class="title"><a id="ref-varlocality-recipe-required"></a>11.2.1. Required</h3></div></div></div><p> | ||
| 4803 | This section lists variables that are required for recipes. | ||
| 4804 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><code class="filename"><a class="link" href="#var-LICENSE" title="LICENSE">LICENSE</a> | ||
| 4805 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-LIC_FILES_CHKSUM" title="LIC_FILES_CHKSUM">LIC_FILES_CHKSUM</a> | ||
| 4806 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-SRC_URI" title="SRC_URI">SRC_URI</a></code> - used | ||
| 4807 | in recipes that fetch local or remote files. | ||
| 4808 | </p></li></ul></div><p> | ||
| 4809 | </p></div><div class="section" title="11.2.2. Dependencies"><div class="titlepage"><div><div><h3 class="title"><a id="ref-varlocality-recipe-dependencies"></a>11.2.2. Dependencies</h3></div></div></div><p> | ||
| 4810 | This section lists variables that define recipe dependencies. | ||
| 4811 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><code class="filename"><a class="link" href="#var-DEPENDS" title="DEPENDS">DEPENDS</a> | ||
| 4812 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-RDEPENDS" title="RDEPENDS">RDEPENDS</a> | ||
| 4813 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-RRECOMMENDS" title="RRECOMMENDS">RRECOMMENDS</a> | ||
| 4814 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-RCONFLICTS" title="RCONFLICTS">RCONFLICTS</a> | ||
| 4815 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-RREPLACES" title="RREPLACES">RREPLACES</a> | ||
| 4816 | </code></p></li></ul></div><p> | ||
| 4817 | </p></div><div class="section" title="11.2.3. Paths"><div class="titlepage"><div><div><h3 class="title"><a id="ref-varlocality-recipe-paths"></a>11.2.3. Paths</h3></div></div></div><p> | ||
| 4818 | This section lists variables that define recipe paths. | ||
| 4819 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><code class="filename"><a class="link" href="#var-WORKDIR" title="WORKDIR">WORKDIR</a> | ||
| 4820 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-S" title="S">S</a> | ||
| 4821 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-FILES" title="FILES">FILES</a> | ||
| 4822 | </code></p></li></ul></div><p> | ||
| 4823 | </p></div><div class="section" title="11.2.4. Extra Build Information"><div class="titlepage"><div><div><h3 class="title"><a id="ref-varlocality-recipe-build"></a>11.2.4. Extra Build Information</h3></div></div></div><p> | ||
| 4824 | This section lists variables that define extra build information for recipes. | ||
| 4825 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><code class="filename"><a class="link" href="#var-EXTRA_OECMAKE" title="EXTRA_OECMAKE">EXTRA_OECMAKE</a> | ||
| 4826 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-EXTRA_OECONF" title="EXTRA_OECONF">EXTRA_OECONF</a> | ||
| 4827 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-EXTRA_OEMAKE" title="EXTRA_OEMAKE">EXTRA_OEMAKE</a> | ||
| 4828 | </code></p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-PACKAGES" title="PACKAGES">PACKAGES</a></code> | ||
| 4829 | </p></li><li class="listitem"><p><code class="filename"><a class="link" href="#var-DEFAULT_PREFERENCE" title="DEFAULT_PREFERENCE">DEFAULT_PREFERENCE | ||
| 4830 | </a></code></p></li></ul></div><p> | ||
| 4831 | </p></div></div></div> | ||
| 4832 | |||
| 4833 | <div class="chapter" title="Chapter 12. FAQ"><div class="titlepage"><div><div><h2 class="title"><a id="faq"></a>Chapter 12. FAQ</h2></div></div></div><div class="qandaset" title="Frequently Asked Questions"><a id="idm975296"></a><dl><dt>12.1. <a href="#idm974832"> | ||
| 4834 | How does Poky differ from OpenEmbedded? | ||
| 4835 | </a></dt><dt>12.2. <a href="#idp1801248"> | ||
| 4836 | I only have Python 2.4 or 2.5 but BitBake requires Python 2.6 or 2.7. | ||
| 4837 | Can I still use the Yocto Project? | ||
| 4838 | </a></dt><dt>12.3. <a href="#idm1781424"> | ||
| 4839 | How can you claim Poky / OpenEmbedded-Core is stable? | ||
| 4840 | </a></dt><dt>12.4. <a href="#idm1777456"> | ||
| 4841 | How do I get support for my board added to the Yocto Project? | ||
| 4842 | </a></dt><dt>12.5. <a href="#idm345792"> | ||
| 4843 | Are there any products built using the OpenEmbedded build system? | ||
| 4844 | </a></dt><dt>12.6. <a href="#idm343136"> | ||
| 4845 | What does the OpenEmbedded build system produce as output? | ||
| 4846 | </a></dt><dt>12.7. <a href="#idm341840"> | ||
| 4847 | How do I add my package to the Yocto Project? | ||
| 4848 | </a></dt><dt>12.8. <a href="#idp1600368"> | ||
| 4849 | Do I have to reflash my entire board with a new Yocto Project image when recompiling | ||
| 4850 | a package? | ||
| 4851 | </a></dt><dt>12.9. <a href="#idp1603824"> | ||
| 4852 | What is GNOME Mobile and what is the difference between GNOME Mobile and GNOME? | ||
| 4853 | </a></dt><dt>12.10. <a href="#idp1605872"> | ||
| 4854 | I see the error 'chmod: XXXXX new permissions are r-xrwxrwx, not r-xr-xr-x'. | ||
| 4855 | What is wrong? | ||
| 4856 | </a></dt><dt>12.11. <a href="#idp1662416"> | ||
| 4857 | How do I make the Yocto Project work in RHEL/CentOS? | ||
| 4858 | </a></dt><dt>12.12. <a href="#idp562304"> | ||
| 4859 | I see lots of 404 responses for files on | ||
| 4860 | http://www.yoctoproject.org/sources/*. Is something wrong? | ||
| 4861 | </a></dt><dt>12.13. <a href="#idp179952"> | ||
| 4862 | I have machine-specific data in a package for one machine only but the package is | ||
| 4863 | being marked as machine-specific in all cases, how do I prevent this? | ||
| 4864 | </a></dt><dt>12.14. <a href="#idp184672"> | ||
| 4865 | I'm behind a firewall and need to use a proxy server. How do I do that? | ||
| 4866 | </a></dt><dt>12.15. <a href="#idp1585952"> | ||
| 4867 | What’s the difference between foo and foo-native? | ||
| 4868 | </a></dt><dt>12.16. <a href="#idp3269536"> | ||
| 4869 | I'm seeing random build failures. Help?! | ||
| 4870 | </a></dt><dt>12.17. <a href="#idp3271104"> | ||
| 4871 | What do we need to ship for license compliance? | ||
| 4872 | </a></dt><dt>12.18. <a href="#idp3272560"> | ||
| 4873 | How do I disable the cursor on my touchscreen device? | ||
| 4874 | </a></dt><dt>12.19. <a href="#idp3244640"> | ||
| 4875 | How do I make sure connected network interfaces are brought up by default? | ||
| 4876 | </a></dt><dt>12.20. <a href="#idp3248256"> | ||
| 4877 | How do I create images with more free space? | ||
| 4878 | </a></dt><dt>12.21. <a href="#idp348464"> | ||
| 4879 | Why don't you support directories with spaces in the pathnames? | ||
| 4880 | </a></dt><dt>12.22. <a href="#idp350512"> | ||
| 4881 | How do I use an external toolchain? | ||
| 4882 | </a></dt><dt>12.23. <a href="#idm184288"> | ||
| 4883 | How does the OpenEmbedded build system obtain source code and will it work behind my | ||
| 4884 | firewall or proxy server? | ||
| 4885 | </a></dt><dt>12.24. <a href="#idm1036560"> | ||
| 4886 | Can I get rid of build output so I can start over? | ||
| 4887 | </a></dt></dl><table border="0" width="100%" summary="Q and A Set"><col align="left" width="1%" /><col /><tbody><tr class="question" title="12.1."><td align="left" valign="top"><a id="idm974832"></a><a id="idm974704"></a><p><strong>12.1.</strong></p></td><td align="left" valign="top"><p> | ||
| 4888 | How does Poky differ from <a class="ulink" href="http://www.openembedded.org" target="_top">OpenEmbedded</a>? | ||
| 4889 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 4890 | The term "Poky" refers to the specific reference build system that | ||
| 4891 | the Yocto Project provides. | ||
| 4892 | Poky is based on <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#oe-core" target="_top">OE-Core</a> | ||
| 4893 | and BitBake. | ||
| 4894 | Thus, the generic term used here for the build system is | ||
| 4895 | the "OpenEmbedded build system." | ||
| 4896 | Development in the Yocto Project using Poky is closely tied to OpenEmbedded, with | ||
| 4897 | changes always being merged to OE-Core or BitBake first before being pulled back | ||
| 4898 | into Poky. | ||
| 4899 | This practice benefits both projects immediately. | ||
| 4900 | For a fuller description of the term "Poky", see the | ||
| 4901 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#poky" target="_top">poky</a> term in the Yocto Project | ||
| 4902 | Development Manual. | ||
| 4903 | </p></td></tr><tr class="question" title="12.2."><td align="left" valign="top"><a id="idp1801248"></a><a id="idp1801376"></a><p><strong>12.2.</strong></p></td><td align="left" valign="top"><p> | ||
| 4904 | I only have Python 2.4 or 2.5 but BitBake requires Python 2.6 or 2.7. | ||
| 4905 | Can I still use the Yocto Project? | ||
| 4906 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 4907 | You can use a stand-alone tarball to provide Python 2.6. | ||
| 4908 | You can find pre-built 32 and 64-bit versions of Python 2.6 at the following locations: | ||
| 4909 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><a class="ulink" href="http://downloads.yoctoproject.org/releases/miscsupport/python-nativesdk-standalone-i686.tar.bz2" target="_top">32-bit tarball</a></p></li><li class="listitem"><p><a class="ulink" href="http://downloads.yoctoproject.org/releases/miscsupport/python-nativesdk-standalone-x86_64.tar.bz2" target="_top">64-bit tarball</a></p></li></ul></div><p> | ||
| 4910 | </p><p> | ||
| 4911 | These tarballs are self-contained with all required libraries and should work | ||
| 4912 | on most Linux systems. | ||
| 4913 | To use the tarballs extract them into the root | ||
| 4914 | directory and run the appropriate command: | ||
| 4915 | </p><pre class="literallayout"> | ||
| 4916 | $ export PATH=/opt/poky/sysroots/i586-pokysdk-linux/usr/bin/:$PATH | ||
| 4917 | $ export PATH=/opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/:$PATH | ||
| 4918 | </pre><p> | ||
| 4919 | </p><p> | ||
| 4920 | Once you run the command, BitBake uses Python 2.6. | ||
| 4921 | </p></td></tr><tr class="question" title="12.3."><td align="left" valign="top"><a id="idm1781424"></a><a id="idm1781296"></a><p><strong>12.3.</strong></p></td><td align="left" valign="top"><p> | ||
| 4922 | How can you claim Poky / OpenEmbedded-Core is stable? | ||
| 4923 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 4924 | There are three areas that help with stability; | ||
| 4925 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>The Yocto Project team keeps | ||
| 4926 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#oe-core" target="_top">OE-Core</a> small | ||
| 4927 | and focused, containing around 830 recipes as opposed to the thousands | ||
| 4928 | available in other OpenEmbedded community layers. | ||
| 4929 | Keeping it small makes it easy to test and maintain.</p></li><li class="listitem"><p>The Yocto Project team runs manual and automated tests | ||
| 4930 | using a small, fixed set of reference hardware as well as emulated | ||
| 4931 | targets.</p></li><li class="listitem"><p>The Yocto Project uses an an autobuilder, | ||
| 4932 | which provides continuous build and integration tests.</p></li></ul></div><p> | ||
| 4933 | </p></td></tr><tr class="question" title="12.4."><td align="left" valign="top"><a id="idm1777456"></a><a id="idm1777328"></a><p><strong>12.4.</strong></p></td><td align="left" valign="top"><p> | ||
| 4934 | How do I get support for my board added to the Yocto Project? | ||
| 4935 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 4936 | Support for an additional board is added by creating a BSP layer for it. | ||
| 4937 | For more information on how to create a BSP layer, see the | ||
| 4938 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/bsp-guide/bsp-guide.html" target="_top">Yocto Project Board Support Package (BSP) Developer's Guide</a>. | ||
| 4939 | </p><p> | ||
| 4940 | Usually, if the board is not completely exotic, adding support in | ||
| 4941 | the Yocto Project is fairly straightforward. | ||
| 4942 | </p></td></tr><tr class="question" title="12.5."><td align="left" valign="top"><a id="idm345792"></a><a id="idm345664"></a><p><strong>12.5.</strong></p></td><td align="left" valign="top"><p> | ||
| 4943 | Are there any products built using the OpenEmbedded build system? | ||
| 4944 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 4945 | The software running on the <a class="ulink" href="http://vernier.com/labquest/" target="_top">Vernier LabQuest</a> | ||
| 4946 | is built using the OpenEmbedded build system. | ||
| 4947 | See the <a class="ulink" href="http://www.vernier.com/products/interfaces/labq/" target="_top">Vernier LabQuest</a> | ||
| 4948 | website for more information. | ||
| 4949 | There are a number of pre-production devices using the OpenEmbedded build system | ||
| 4950 | and the Yocto Project team | ||
| 4951 | announces them as soon as they are released. | ||
| 4952 | </p></td></tr><tr class="question" title="12.6."><td align="left" valign="top"><a id="idm343136"></a><a id="idm343008"></a><p><strong>12.6.</strong></p></td><td align="left" valign="top"><p> | ||
| 4953 | What does the OpenEmbedded build system produce as output? | ||
| 4954 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 4955 | Because the same set of recipes can be used to create output of various formats, the | ||
| 4956 | output of an OpenEmbedded build depends on how it was started. | ||
| 4957 | Usually, the output is a flashable image ready for the target device. | ||
| 4958 | </p></td></tr><tr class="question" title="12.7."><td align="left" valign="top"><a id="idm341840"></a><a id="idm341712"></a><p><strong>12.7.</strong></p></td><td align="left" valign="top"><p> | ||
| 4959 | How do I add my package to the Yocto Project? | ||
| 4960 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 4961 | To add a package, you need to create a BitBake recipe. | ||
| 4962 | For information on how to add a package, see the section | ||
| 4963 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#usingpoky-extend-addpkg" target="_top">Adding a Package</a>" | ||
| 4964 | in the Yocto Project Development Manual. | ||
| 4965 | </p></td></tr><tr class="question" title="12.8."><td align="left" valign="top"><a id="idp1600368"></a><a id="idp1600496"></a><p><strong>12.8.</strong></p></td><td align="left" valign="top"><p> | ||
| 4966 | Do I have to reflash my entire board with a new Yocto Project image when recompiling | ||
| 4967 | a package? | ||
| 4968 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 4969 | The OpenEmbedded build system can build packages in various formats such as | ||
| 4970 | <code class="filename">ipk</code> for <code class="filename">opkg</code>, | ||
| 4971 | Debian package (<code class="filename">.deb</code>), or RPM. | ||
| 4972 | The packages can then be upgraded using the package tools on the device, much like | ||
| 4973 | on a desktop distribution such as Ubuntu or Fedora. | ||
| 4974 | </p></td></tr><tr class="question" title="12.9."><td align="left" valign="top"><a id="idp1603824"></a><a id="idp1603952"></a><p><strong>12.9.</strong></p></td><td align="left" valign="top"><p> | ||
| 4975 | What is GNOME Mobile and what is the difference between GNOME Mobile and GNOME? | ||
| 4976 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 4977 | GNOME Mobile is a subset of the <a class="ulink" href="http://www.gnome.org" target="_top">GNOME</a> | ||
| 4978 | platform targeted at mobile and embedded devices. | ||
| 4979 | The the main difference between GNOME Mobile and standard GNOME is that | ||
| 4980 | desktop-orientated libraries have been removed, along with deprecated libraries, | ||
| 4981 | creating a much smaller footprint. | ||
| 4982 | </p></td></tr><tr class="question" title="12.10."><td align="left" valign="top"><a id="idp1605872"></a><a id="idp1606000"></a><p><strong>12.10.</strong></p></td><td align="left" valign="top"><p> | ||
| 4983 | I see the error '<code class="filename">chmod: XXXXX new permissions are r-xrwxrwx, not r-xr-xr-x</code>'. | ||
| 4984 | What is wrong? | ||
| 4985 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 4986 | You are probably running the build on an NTFS filesystem. | ||
| 4987 | Use <code class="filename">ext2</code>, <code class="filename">ext3</code>, or <code class="filename">ext4</code> instead. | ||
| 4988 | </p></td></tr><tr class="question" title="12.11."><td align="left" valign="top"><a id="idp1662416"></a><a id="idp1662544"></a><p><strong>12.11.</strong></p></td><td align="left" valign="top"><p> | ||
| 4989 | How do I make the Yocto Project work in RHEL/CentOS? | ||
| 4990 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 4991 | To get the Yocto Project working under RHEL/CentOS 5.1 you need to first | ||
| 4992 | install some required packages. | ||
| 4993 | The standard CentOS packages needed are: | ||
| 4994 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>"Development tools" (selected during installation)</p></li><li class="listitem"><p><code class="filename">texi2html</code></p></li><li class="listitem"><p><code class="filename">compat-gcc-34</code></p></li></ul></div><p> | ||
| 4995 | On top of these, you need the following external packages: | ||
| 4996 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><code class="filename">python-sqlite2</code> from | ||
| 4997 | <a class="ulink" href="http://dag.wieers.com/rpm/packages/python-sqlite2/" target="_top">DAG repository</a> | ||
| 4998 | </p></li><li class="listitem"><p><code class="filename">help2man</code> from | ||
| 4999 | <a class="ulink" href="http://centos.karan.org/el4/extras/stable/x86_64/RPMS/repodata/repoview/help2man-0-1.33.1-2.html" target="_top">Karan repository</a></p></li></ul></div><p> | ||
| 5000 | </p><p> | ||
| 5001 | Once these packages are installed, the OpenEmbedded build system will be able | ||
| 5002 | to build standard images. | ||
| 5003 | However, there might be a problem with the QEMU emulator segfaulting. | ||
| 5004 | You can either disable the generation of binary locales by setting | ||
| 5005 | <code class="filename"><a class="link" href="#var-ENABLE_BINARY_LOCALE_GENERATION" title="ENABLE_BINARY_LOCALE_GENERATION">ENABLE_BINARY_LOCALE_GENERATION</a> | ||
| 5006 | </code> to "0" or by removing the <code class="filename">linux-2.6-execshield.patch</code> | ||
| 5007 | from the kernel and rebuilding it since that is the patch that causes the problems with QEMU. | ||
| 5008 | </p></td></tr><tr class="question" title="12.12."><td align="left" valign="top"><a id="idp562304"></a><a id="idp562432"></a><p><strong>12.12.</strong></p></td><td align="left" valign="top"><p> | ||
| 5009 | I see lots of 404 responses for files on | ||
| 5010 | <code class="filename">http://www.yoctoproject.org/sources/*</code>. Is something wrong? | ||
| 5011 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 5012 | Nothing is wrong. | ||
| 5013 | The OpenEmbedded build system checks any configured source mirrors before downloading | ||
| 5014 | from the upstream sources. | ||
| 5015 | The build system does this searching for both source archives and | ||
| 5016 | pre-checked out versions of SCM managed software. | ||
| 5017 | These checks help in large installations because it can reduce load on the SCM servers | ||
| 5018 | themselves. | ||
| 5019 | The address above is one of the default mirrors configured into the | ||
| 5020 | build system. | ||
| 5021 | Consequently, if an upstream source disappears, the team | ||
| 5022 | can place sources there so builds continue to work. | ||
| 5023 | </p></td></tr><tr class="question" title="12.13."><td align="left" valign="top"><a id="idp179952"></a><a id="idp180080"></a><p><strong>12.13.</strong></p></td><td align="left" valign="top"><p> | ||
| 5024 | I have machine-specific data in a package for one machine only but the package is | ||
| 5025 | being marked as machine-specific in all cases, how do I prevent this? | ||
| 5026 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 5027 | Set <code class="filename"><a class="link" href="#var-SRC_URI_OVERRIDES_PACKAGE_ARCH" title="SRC_URI_OVERRIDES_PACKAGE_ARCH">SRC_URI_OVERRIDES_PACKAGE_ARCH</a> | ||
| 5028 | </code> = "0" in the <code class="filename">.bb</code> file but make sure the package is | ||
| 5029 | manually marked as | ||
| 5030 | machine-specific in the case that needs it. | ||
| 5031 | The code that handles <code class="filename">SRC_URI_OVERRIDES_PACKAGE_ARCH</code> is in <code class="filename">base.bbclass</code>. | ||
| 5032 | </p></td></tr><tr class="question" title="12.14."><td align="left" valign="top"><a id="idp184672"></a><a id="idp1581568"></a><p><strong>12.14.</strong></p></td><td align="left" valign="top"><p> | ||
| 5033 | I'm behind a firewall and need to use a proxy server. How do I do that? | ||
| 5034 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 5035 | Most source fetching by the OpenEmbedded build system is done by <code class="filename">wget</code> | ||
| 5036 | and you therefore need to specify the proxy settings in a | ||
| 5037 | <code class="filename">.wgetrc</code> file in your home directory. | ||
| 5038 | Example settings in that file would be | ||
| 5039 | </p><pre class="literallayout"> | ||
| 5040 | http_proxy = http://proxy.yoyodyne.com:18023/ | ||
| 5041 | ftp_proxy = http://proxy.yoyodyne.com:18023/ | ||
| 5042 | </pre><p> | ||
| 5043 | The Yocto Project also includes a <code class="filename">site.conf.sample</code> | ||
| 5044 | file that shows how to configure CVS and Git proxy servers | ||
| 5045 | if needed. | ||
| 5046 | </p></td></tr><tr class="question" title="12.15."><td align="left" valign="top"><a id="idp1585952"></a><a id="idp1586080"></a><p><strong>12.15.</strong></p></td><td align="left" valign="top"><p> | ||
| 5047 | What’s the difference between <code class="filename">foo</code> and <code class="filename">foo-native</code>? | ||
| 5048 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 5049 | The <code class="filename">*-native</code> targets are designed to run on the system | ||
| 5050 | being used for the build. | ||
| 5051 | These are usually tools that are needed to assist the build in some way such as | ||
| 5052 | <code class="filename">quilt-native</code>, which is used to apply patches. | ||
| 5053 | The non-native version is the one that runs on the target device. | ||
| 5054 | </p></td></tr><tr class="question" title="12.16."><td align="left" valign="top"><a id="idp3269536"></a><a id="idp3269664"></a><p><strong>12.16.</strong></p></td><td align="left" valign="top"><p> | ||
| 5055 | I'm seeing random build failures. Help?! | ||
| 5056 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 5057 | If the same build is failing in totally different and random ways, | ||
| 5058 | the most likely explanation is that either the hardware you're running the | ||
| 5059 | build on has some problem, or, if you are running the build under virtualisation, | ||
| 5060 | the virtualisation probably has bugs. | ||
| 5061 | The OpenEmbedded build system processes a massive amount of data causing lots of network, disk and | ||
| 5062 | CPU activity and is sensitive to even single bit failures in any of these areas. | ||
| 5063 | True random failures have always been traced back to hardware or virtualisation issues. | ||
| 5064 | </p></td></tr><tr class="question" title="12.17."><td align="left" valign="top"><a id="idp3271104"></a><a id="idp3271232"></a><p><strong>12.17.</strong></p></td><td align="left" valign="top"><p> | ||
| 5065 | What do we need to ship for license compliance? | ||
| 5066 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 5067 | This is a difficult question and you need to consult your lawyer for the answer | ||
| 5068 | for your specific case. | ||
| 5069 | It is worth bearing in mind that for GPL compliance there needs to be enough | ||
| 5070 | information shipped to allow someone else to rebuild the same end result | ||
| 5071 | you are shipping. | ||
| 5072 | This means sharing the source code, any patches applied to it, and also any | ||
| 5073 | configuration information about how that package was configured and built. | ||
| 5074 | </p></td></tr><tr class="question" title="12.18."><td align="left" valign="top"><a id="idp3272560"></a><a id="idp3272688"></a><p><strong>12.18.</strong></p></td><td align="left" valign="top"><p> | ||
| 5075 | How do I disable the cursor on my touchscreen device? | ||
| 5076 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 5077 | You need to create a form factor file as described in the | ||
| 5078 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/bsp-guide/bsp-guide.html#bsp-filelayout-misc-recipes" target="_top">Miscellaneous Recipe Files</a>" | ||
| 5079 | section and set the <code class="filename">HAVE_TOUCHSCREEN</code> variable equal to one as follows: | ||
| 5080 | </p><pre class="literallayout"> | ||
| 5081 | HAVE_TOUCHSCREEN=1 | ||
| 5082 | </pre><p> | ||
| 5083 | </p></td></tr><tr class="question" title="12.19."><td align="left" valign="top"><a id="idp3244640"></a><a id="idp3244768"></a><p><strong>12.19.</strong></p></td><td align="left" valign="top"><p> | ||
| 5084 | How do I make sure connected network interfaces are brought up by default? | ||
| 5085 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 5086 | The default interfaces file provided by the netbase recipe does not | ||
| 5087 | automatically bring up network interfaces. | ||
| 5088 | Therefore, you will need to add a BSP-specific netbase that includes an interfaces | ||
| 5089 | file. | ||
| 5090 | See the "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/bsp-guide/bsp-guide.html#bsp-filelayout-misc-recipes" target="_top">Miscellaneous Recipe Files</a>" | ||
| 5091 | section for information on creating these types of miscellaneous recipe files. | ||
| 5092 | </p><p> | ||
| 5093 | For example, add the following files to your layer: | ||
| 5094 | </p><pre class="literallayout"> | ||
| 5095 | meta-MACHINE/recipes-bsp/netbase/netbase/MACHINE/interfaces | ||
| 5096 | meta-MACHINE/recipes-bsp/netbase/netbase_5.0.bbappend | ||
| 5097 | </pre><p> | ||
| 5098 | </p></td></tr><tr class="question" title="12.20."><td align="left" valign="top"><a id="idp3248256"></a><a id="idp3248384"></a><p><strong>12.20.</strong></p></td><td align="left" valign="top"><p> | ||
| 5099 | How do I create images with more free space? | ||
| 5100 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 5101 | Images are created to be 1.2 times the size of the populated root filesystem. | ||
| 5102 | To modify this ratio so that there is more free space available, you need to | ||
| 5103 | set the configuration value <code class="filename">IMAGE_OVERHEAD_FACTOR</code>. | ||
| 5104 | For example, setting <code class="filename">IMAGE_OVERHEAD_FACTOR</code> to 1.5 sets | ||
| 5105 | the image size ratio to one and a half times the size of the populated | ||
| 5106 | root filesystem. | ||
| 5107 | </p><pre class="literallayout"> | ||
| 5108 | IMAGE_OVERHEAD_FACTOR = "1.5" | ||
| 5109 | </pre><p> | ||
| 5110 | </p></td></tr><tr class="question" title="12.21."><td align="left" valign="top"><a id="idp348464"></a><a id="idp348592"></a><p><strong>12.21.</strong></p></td><td align="left" valign="top"><p> | ||
| 5111 | Why don't you support directories with spaces in the pathnames? | ||
| 5112 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 5113 | The Yocto Project team has tried to do this before but too many of the tools | ||
| 5114 | the OpenEmbedded build system depends on such as <code class="filename">autoconf</code> | ||
| 5115 | break when they find spaces in pathnames. | ||
| 5116 | Until that situation changes, the team will not support spaces in pathnames. | ||
| 5117 | </p></td></tr><tr class="question" title="12.22."><td align="left" valign="top"><a id="idp350512"></a><a id="idp350640"></a><p><strong>12.22.</strong></p></td><td align="left" valign="top"><p> | ||
| 5118 | How do I use an external toolchain? | ||
| 5119 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 5120 | The toolchain configuration is very flexible and customizable. | ||
| 5121 | It is primarily controlled with the | ||
| 5122 | <code class="filename"><a class="link" href="#var-TCMODE" title="TCMODE">TCMODE</a></code> variable. | ||
| 5123 | This variable controls which <code class="filename">tcmode-*.inc</code> file to include | ||
| 5124 | from the <code class="filename">meta/conf/distro/include</code> directory within the | ||
| 5125 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">source directory</a>. | ||
| 5126 | </p><p> | ||
| 5127 | The default value of <code class="filename">TCMODE</code> is "default" | ||
| 5128 | (i.e. <code class="filename">tcmode-default.inc</code>). | ||
| 5129 | However, other patterns are accepted. | ||
| 5130 | In particular, "external-*" refers to external toolchains of which there are some | ||
| 5131 | basic examples included in the OpenEmbedded Core (<code class="filename">meta</code>). | ||
| 5132 | You can use your own custom toolchain definition in your own layer | ||
| 5133 | (or as defined in the <code class="filename">local.conf</code> file) at the location | ||
| 5134 | <code class="filename">conf/distro/include/tcmode-*.inc</code>. | ||
| 5135 | </p><p> | ||
| 5136 | In addition to the toolchain configuration, you also need a corresponding toolchain recipe file. | ||
| 5137 | This recipe file needs to package up any pre-built objects in the toolchain such as | ||
| 5138 | <code class="filename">libgcc</code>, <code class="filename">libstdcc++</code>, | ||
| 5139 | any locales, and <code class="filename">libc</code>. | ||
| 5140 | An example is the <code class="filename">external-sourcery-toolchain.bb</code>, which is located | ||
| 5141 | in <code class="filename">meta/recipes-core/meta/</code> within the source directory. | ||
| 5142 | </p></td></tr><tr class="question" title="12.23."><td align="left" valign="top"><a id="idm184288"></a><a id="idm1835680"></a><p><strong>12.23.</strong></p></td><td align="left" valign="top"><p><a id="how-does-the-yocto-project-obtain-source-code-and-will-it-work-behind-my-firewall-or-proxy-server"></a> | ||
| 5143 | How does the OpenEmbedded build system obtain source code and will it work behind my | ||
| 5144 | firewall or proxy server? | ||
| 5145 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 5146 | The way the build system obtains source code is highly configurable. | ||
| 5147 | You can setup the build system to get source code in most environments if | ||
| 5148 | HTTP transport is available. | ||
| 5149 | </p><p> | ||
| 5150 | When the build system searches for source code, it first tries the local download directory. | ||
| 5151 | If that location fails, Poky tries PREMIRRORS, the upstream source, | ||
| 5152 | and then MIRRORS in that order. | ||
| 5153 | </p><p> | ||
| 5154 | By default, the OpenEmbedded build system uses the Yocto Project source PREMIRRORS | ||
| 5155 | for SCM-based sources, | ||
| 5156 | upstreams for normal tarballs, and then falls back to a number of other mirrors | ||
| 5157 | including the Yocto Project source mirror if those fail. | ||
| 5158 | </p><p> | ||
| 5159 | As an example, you could add a specific server for Poky to attempt before any | ||
| 5160 | others by adding something like the following to the <code class="filename">local.conf</code> | ||
| 5161 | configuration file: | ||
| 5162 | </p><pre class="literallayout"> | ||
| 5163 | PREMIRRORS_prepend = "\ | ||
| 5164 | git://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 5165 | ftp://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 5166 | http://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 5167 | https://.*/.* http://www.yoctoproject.org/sources/ \n" | ||
| 5168 | </pre><p> | ||
| 5169 | </p><p> | ||
| 5170 | These changes cause Poky to intercept Git, FTP, HTTP, and HTTPS | ||
| 5171 | requests and direct them to the <code class="filename">http://</code> sources mirror. | ||
| 5172 | You can use <code class="filename">file://</code> URLs to point to local directories | ||
| 5173 | or network shares as well. | ||
| 5174 | </p><p> | ||
| 5175 | Aside from the previous technique, these options also exist: | ||
| 5176 | </p><pre class="literallayout"> | ||
| 5177 | BB_NO_NETWORK = "1" | ||
| 5178 | </pre><p> | ||
| 5179 | This statement tells BitBake to throw an error instead of trying to access the | ||
| 5180 | Internet. | ||
| 5181 | This technique is useful if you want to ensure code builds only from local sources. | ||
| 5182 | </p><p> | ||
| 5183 | Here is another technique: | ||
| 5184 | </p><pre class="literallayout"> | ||
| 5185 | BB_FETCH_PREMIRRORONLY = "1" | ||
| 5186 | </pre><p> | ||
| 5187 | This statement limits Poky to pulling source from the PREMIRRORS only. | ||
| 5188 | Again, this technique is useful for reproducing builds. | ||
| 5189 | </p><p> | ||
| 5190 | Here is another technique: | ||
| 5191 | </p><pre class="literallayout"> | ||
| 5192 | BB_GENERATE_MIRROR_TARBALLS = "1" | ||
| 5193 | </pre><p> | ||
| 5194 | This statement tells Poky to generate mirror tarballs. | ||
| 5195 | This technique is useful if you want to create a mirror server. | ||
| 5196 | If not, however, the technique can simply waste time during the build. | ||
| 5197 | </p><p> | ||
| 5198 | Finally, consider an example where you are behind an HTTP-only firewall. | ||
| 5199 | You could make the following changes to the <code class="filename">local.conf</code> | ||
| 5200 | configuration file as long as the PREMIRROR server is up to date: | ||
| 5201 | </p><pre class="literallayout"> | ||
| 5202 | PREMIRRORS_prepend = "\ | ||
| 5203 | ftp://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 5204 | http://.*/.* http://www.yoctoproject.org/sources/ \n \ | ||
| 5205 | https://.*/.* http://www.yoctoproject.org/sources/ \n" | ||
| 5206 | BB_FETCH_PREMIRRORONLY = "1" | ||
| 5207 | </pre><p> | ||
| 5208 | These changes would cause Poky to successfully fetch source over HTTP and | ||
| 5209 | any network accesses to anything other than the PREMIRROR would fail. | ||
| 5210 | </p><p> | ||
| 5211 | The build system also honors the standard shell environment variables | ||
| 5212 | <code class="filename">http_proxy</code>, <code class="filename">ftp_proxy</code>, | ||
| 5213 | <code class="filename">https_proxy</code>, and <code class="filename">all_proxy</code> | ||
| 5214 | to redirect requests through proxy servers. | ||
| 5215 | </p></td></tr><tr class="question" title="12.24."><td align="left" valign="top"><a id="idm1036560"></a><a id="idm1036432"></a><p><strong>12.24.</strong></p></td><td align="left" valign="top"><p> | ||
| 5216 | Can I get rid of build output so I can start over? | ||
| 5217 | </p></td></tr><tr class="answer"><td align="left" valign="top"></td><td align="left" valign="top"><p> | ||
| 5218 | Yes - you can easily do this. | ||
| 5219 | When you use BitBake to build an image, all the build output goes into the | ||
| 5220 | directory created when you source the <code class="filename">oe-init-build-env</code> | ||
| 5221 | setup file. | ||
| 5222 | By default, this <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#build-directory" target="_top">build directory</a> | ||
| 5223 | is named <code class="filename">build</code> but can be named | ||
| 5224 | anything you want. | ||
| 5225 | </p><p> | ||
| 5226 | Within the build directory is the <code class="filename">tmp</code> directory. | ||
| 5227 | To remove all the build output yet preserve any source code or downloaded files | ||
| 5228 | from previous builds, simply remove the <code class="filename">tmp</code> directory. | ||
| 5229 | </p></td></tr></tbody></table></div></div> | ||
| 5230 | |||
| 5231 | <div class="chapter" title="Chapter 13. Contributing to the Yocto Project"><div class="titlepage"><div><div><h2 class="title"><a id="resources"></a>Chapter 13. Contributing to the Yocto Project</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="section"><a href="#resources-intro">13.1. Introduction</a></span></dt><dt><span class="section"><a href="#resources-bugtracker">13.2. Tracking Bugs</a></span></dt><dt><span class="section"><a href="#resources-mailinglist">13.3. Mailing lists</a></span></dt><dt><span class="section"><a href="#resources-irc">13.4. Internet Relay Chat (IRC)</a></span></dt><dt><span class="section"><a href="#resources-links">13.5. Links</a></span></dt><dt><span class="section"><a href="#resources-contributions">13.6. Contributions</a></span></dt></dl></div><div class="section" title="13.1. Introduction"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="resources-intro"></a>13.1. Introduction</h2></div></div></div><p> | ||
| 5232 | The Yocto Project team is happy for people to experiment with the Yocto Project. | ||
| 5233 | A number of places exist to find help if you run into difficulties or find bugs. | ||
| 5234 | To find out how to download source code, | ||
| 5235 | see the "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#local-yp-release" target="_top">Yocto Project Release</a>" | ||
| 5236 | list item in the Yocto Project Development Manual. | ||
| 5237 | </p></div><div class="section" title="13.2. Tracking Bugs"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="resources-bugtracker"></a>13.2. Tracking Bugs</h2></div></div></div><p> | ||
| 5238 | If you find problems with the Yocto Project, you should report them using the | ||
| 5239 | Bugzilla application at <a class="ulink" href="http://bugzilla.yoctoproject.org" target="_top">http://bugzilla.yoctoproject.org</a>. | ||
| 5240 | </p></div><div class="section" title="13.3. Mailing lists"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="resources-mailinglist"></a>13.3. Mailing lists</h2></div></div></div><p> | ||
| 5241 | There are a number of mailing lists maintained by the Yocto Project as well as | ||
| 5242 | related OpenEmbedded mailing lists for discussion, patch submission and announcements. | ||
| 5243 | To subscribe to one of the following mailing lists, click on the appropriate URL | ||
| 5244 | in the following list and follow the instructions: | ||
| 5245 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><a class="ulink" href="http://lists.yoctoproject.org/listinfo/yocto" target="_top">http://lists.yoctoproject.org/listinfo/yocto</a> - | ||
| 5246 | General Yocto Project discussion mailing list. </p></li><li class="listitem"><p><a class="ulink" href="http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core" target="_top">http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core</a> - | ||
| 5247 | Discussion mailing list about OpenEmbedded-Core (the core metadata).</p></li><li class="listitem"><p><a class="ulink" href="http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-devel" target="_top">http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-devel</a> - | ||
| 5248 | Discussion mailing list about OpenEmbedded.</p></li><li class="listitem"><p><a class="ulink" href="http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/bitbake-devel" target="_top">http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/bitbake-devel</a> - | ||
| 5249 | Discussion mailing list about the BitBake build tool.</p></li><li class="listitem"><p><a class="ulink" href="http://lists.yoctoproject.org/listinfo/poky" target="_top">http://lists.yoctoproject.org/listinfo/poky</a> - | ||
| 5250 | Discussion mailing list about Poky.</p></li><li class="listitem"><p><a class="ulink" href="http://lists.yoctoproject.org/listinfo/yocto-announce" target="_top">http://lists.yoctoproject.org/listinfo/yocto-announce</a> - | ||
| 5251 | Mailing list to receive official Yocto Project release and milestone | ||
| 5252 | announcements.</p></li></ul></div><p> | ||
| 5253 | </p></div><div class="section" title="13.4. Internet Relay Chat (IRC)"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="resources-irc"></a>13.4. Internet Relay Chat (IRC)</h2></div></div></div><p> | ||
| 5254 | Two IRC channels on freenode are available for the Yocto Project and Poky discussions: | ||
| 5255 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><code class="filename">#yocto</code></p></li><li class="listitem"><p><code class="filename">#poky</code></p></li></ul></div><p> | ||
| 5256 | </p></div><div class="section" title="13.5. Links"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="resources-links"></a>13.5. Links</h2></div></div></div><p> | ||
| 5257 | Following is a list of resources you will find helpful: | ||
| 5258 | </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em><a class="ulink" href="http://www.yoctoproject.org" target="_top">The Yocto Project website</a>: | ||
| 5259 | </em></span> The home site for the Yocto Project.</p></li><li class="listitem"><p><span class="emphasis"><em><a class="ulink" href="http://www.intel.com/" target="_top">Intel Corporation</a>:</em></span> | ||
| 5260 | The company who acquired OpenedHand in 2008 and began development on the | ||
| 5261 | Yocto Project.</p></li><li class="listitem"><p><span class="emphasis"><em><a class="ulink" href="http://www.openembedded.org" target="_top">OpenEmbedded</a>:</em></span> | ||
| 5262 | The upstream, generic, embedded distribution used as the basis for the build system in the | ||
| 5263 | Yocto Project. | ||
| 5264 | Poky derives from and contributes back to the OpenEmbedded project.</p></li><li class="listitem"><p><span class="emphasis"><em><a class="ulink" href="http://developer.berlios.de/projects/bitbake/" target="_top"> | ||
| 5265 | BitBake</a>:</em></span> The tool used to process metadata.</p></li><li class="listitem"><p><span class="emphasis"><em>BitBake User Manual:</em></span> | ||
| 5266 | A comprehensive guide to the BitBake tool. | ||
| 5267 | You can find the BitBake User Manual in the <code class="filename">bitbake/doc/manual</code> | ||
| 5268 | directory, which is found in the | ||
| 5269 | <a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#source-directory" target="_top">Source Directory</a>. | ||
| 5270 | </p></li><li class="listitem"><p><span class="emphasis"><em><a class="ulink" href="http://wiki.qemu.org/Index.html" target="_top">QEMU</a>: | ||
| 5271 | </em></span> An open source machine emulator and virtualizer.</p></li></ul></div><p> | ||
| 5272 | </p></div><div class="section" title="13.6. Contributions"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="resources-contributions"></a>13.6. Contributions</h2></div></div></div><p> | ||
| 5273 | The Yocto Project gladly accepts contributions. | ||
| 5274 | You can submit changes to the project either by creating and sending pull requests, | ||
| 5275 | or by submitting patches through email. | ||
| 5276 | For information on how to do both, see the | ||
| 5277 | "<a class="ulink" href="http://www.yoctoproject.org/docs/1.4/dev-manual/dev-manual.html#how-to-submit-a-change" target="_top">How to Submit a Change</a>" | ||
| 5278 | section in the Yocto Project Development Manual. | ||
| 5279 | </p></div></div> | ||
| 5280 | |||
| 5281 | |||
| 5282 | |||
| 5283 | </div></body></html> | ||
diff --git a/documentation/ref-manual/ref-manual.pdf b/documentation/ref-manual/ref-manual.pdf new file mode 100644 index 0000000000..4dd9f7a25f --- /dev/null +++ b/documentation/ref-manual/ref-manual.pdf | |||
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diff --git a/documentation/ref-manual/ref-manual.xml b/documentation/ref-manual/ref-manual.xml new file mode 100644 index 0000000000..eeba91c775 --- /dev/null +++ b/documentation/ref-manual/ref-manual.xml | |||
| @@ -0,0 +1,125 @@ | |||
| 1 | <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <book id='ref-manual' lang='en' | ||
| 6 | xmlns:xi="http://www.w3.org/2003/XInclude" | ||
| 7 | xmlns="http://docbook.org/ns/docbook" | ||
| 8 | > | ||
| 9 | <bookinfo> | ||
| 10 | |||
| 11 | <mediaobject> | ||
| 12 | <imageobject> | ||
| 13 | <imagedata fileref='figures/poky-title.png' | ||
| 14 | format='SVG' | ||
| 15 | align='left' scalefit='1' width='100%'/> | ||
| 16 | </imageobject> | ||
| 17 | </mediaobject> | ||
| 18 | |||
| 19 | <title></title> | ||
| 20 | |||
| 21 | <authorgroup> | ||
| 22 | <author> | ||
| 23 | <firstname>Richard</firstname> <surname>Purdie</surname> | ||
| 24 | <affiliation> | ||
| 25 | <orgname>Linux Foundation</orgname> | ||
| 26 | </affiliation> | ||
| 27 | <email>richard.purdie@linuxfoundation.org</email> | ||
| 28 | </author> | ||
| 29 | |||
| 30 | </authorgroup> | ||
| 31 | |||
| 32 | <revhistory> | ||
| 33 | <revision> | ||
| 34 | <revnumber>4.0+git</revnumber> | ||
| 35 | <date>24 November 2010</date> | ||
| 36 | <revremark>Released with the Yocto Project 0.9 Release</revremark> | ||
| 37 | </revision> | ||
| 38 | <revision> | ||
| 39 | <revnumber>1.0</revnumber> | ||
| 40 | <date>6 April 2011</date> | ||
| 41 | <revremark>Released with the Yocto Project 1.0 Release.</revremark> | ||
| 42 | </revision> | ||
| 43 | <revision> | ||
| 44 | <revnumber>1.0.1</revnumber> | ||
| 45 | <date>23 May 2011</date> | ||
| 46 | <revremark>Released with the Yocto Project 1.0.1 Release.</revremark> | ||
| 47 | </revision> | ||
| 48 | <revision> | ||
| 49 | <revnumber>1.1</revnumber> | ||
| 50 | <date>6 October 2011</date> | ||
| 51 | <revremark>Released with the Yocto Project 1.1 Release.</revremark> | ||
| 52 | </revision> | ||
| 53 | <revision> | ||
| 54 | <revnumber>1.2</revnumber> | ||
| 55 | <date>April 2012</date> | ||
| 56 | <revremark>Released with the Yocto Project 1.2 Release.</revremark> | ||
| 57 | </revision> | ||
| 58 | <revision> | ||
| 59 | <revnumber>1.3</revnumber> | ||
| 60 | <date>October 2012</date> | ||
| 61 | <revremark>Released with the Yocto Project 1.3 Release.</revremark> | ||
| 62 | </revision> | ||
| 63 | <revision> | ||
| 64 | <revnumber>1.4</revnumber> | ||
| 65 | <date>Sometime in 2013</date> | ||
| 66 | <revremark>Released with the Yocto Project 1.4 Release.</revremark> | ||
| 67 | </revision> | ||
| 68 | </revhistory> | ||
| 69 | |||
| 70 | <copyright> | ||
| 71 | <year>©RIGHT_YEAR;</year> | ||
| 72 | <holder>Linux Foundation</holder> | ||
| 73 | </copyright> | ||
| 74 | |||
| 75 | <legalnotice> | ||
| 76 | <para> | ||
| 77 | Permission is granted to copy, distribute and/or modify this document under | ||
| 78 | the terms of the <ulink type="http" url="http://creativecommons.org/licenses/by-sa/2.0/uk/">Creative Commons Attribution-Share Alike 2.0 UK: England & Wales</ulink> as published by Creative Commons. | ||
| 79 | </para> | ||
| 80 | <note> | ||
| 81 | Due to production processes, there could be differences between the Yocto Project | ||
| 82 | documentation bundled in the release tarball and the | ||
| 83 | <ulink url='&YOCTO_DOCS_REF_URL;'>Yocto Project Reference Manual</ulink> on | ||
| 84 | the <ulink url='&YOCTO_HOME_URL;'>Yocto Project</ulink> website. | ||
| 85 | For the latest version of this manual, see the manual on the website. | ||
| 86 | </note> | ||
| 87 | </legalnotice> | ||
| 88 | |||
| 89 | </bookinfo> | ||
| 90 | |||
| 91 | <xi:include href="introduction.xml"/> | ||
| 92 | |||
| 93 | <xi:include href="usingpoky.xml"/> | ||
| 94 | |||
| 95 | <xi:include href="technical-details.xml"/> | ||
| 96 | |||
| 97 | <xi:include href="migration.xml"/> | ||
| 98 | |||
| 99 | <xi:include href="ref-structure.xml"/> | ||
| 100 | |||
| 101 | <xi:include href="ref-bitbake.xml"/> | ||
| 102 | |||
| 103 | <xi:include href="ref-classes.xml"/> | ||
| 104 | |||
| 105 | <xi:include href="ref-images.xml"/> | ||
| 106 | |||
| 107 | <xi:include href="ref-features.xml"/> | ||
| 108 | |||
| 109 | <xi:include href="ref-variables.xml"/> | ||
| 110 | |||
| 111 | <xi:include href="ref-varlocality.xml"/> | ||
| 112 | |||
| 113 | <xi:include href="faq.xml"/> | ||
| 114 | |||
| 115 | <xi:include href="resources.xml"/> | ||
| 116 | |||
| 117 | <!-- <index id='index'> | ||
| 118 | <title>Index</title> | ||
| 119 | </index> | ||
| 120 | --> | ||
| 121 | |||
| 122 | </book> | ||
| 123 | <!-- | ||
| 124 | vim: expandtab tw=80 ts=4 | ||
| 125 | --> | ||
diff --git a/documentation/ref-manual/ref-structure.xml b/documentation/ref-manual/ref-structure.xml new file mode 100644 index 0000000000..2fa3341e61 --- /dev/null +++ b/documentation/ref-manual/ref-structure.xml | |||
| @@ -0,0 +1,709 @@ | |||
| 1 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <chapter id='ref-structure'> | ||
| 6 | |||
| 7 | <title>Source Directory Structure</title> | ||
| 8 | |||
| 9 | <para> | ||
| 10 | The <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink> consists of several components. | ||
| 11 | Understanding them and knowing where they are located is key to using the Yocto Project well. | ||
| 12 | This chapter describes the Source Directory and gives information about the various | ||
| 13 | files and directories. | ||
| 14 | </para> | ||
| 15 | |||
| 16 | <para> | ||
| 17 | For information on how to establish a local Source Directory on your development system, see the | ||
| 18 | "<ulink url='&YOCTO_DOCS_DEV_URL;#getting-setup'>Getting Set Up</ulink>" | ||
| 19 | section in the Yocto Project Development Manual. | ||
| 20 | </para> | ||
| 21 | |||
| 22 | <note> | ||
| 23 | The OpenEmbedded build system does not support file or directory names that | ||
| 24 | contain spaces. | ||
| 25 | Be sure that the Source Directory you use does not contain these types | ||
| 26 | of names. | ||
| 27 | </note> | ||
| 28 | |||
| 29 | <section id='structure-core'> | ||
| 30 | <title>Top level core components</title> | ||
| 31 | |||
| 32 | <section id='structure-core-bitbake'> | ||
| 33 | <title><filename>bitbake/</filename></title> | ||
| 34 | |||
| 35 | <para> | ||
| 36 | The <ulink url='source-directory'>Source Directory</ulink> | ||
| 37 | includes a copy of BitBake for ease of use. | ||
| 38 | The copy usually matches the current stable BitBake release from the BitBake project. | ||
| 39 | BitBake, a metadata interpreter, reads the Yocto Project metadata and runs the tasks | ||
| 40 | defined by that data. | ||
| 41 | Failures are usually from the metadata and not from BitBake itself. | ||
| 42 | Consequently, most users do not need to worry about BitBake. | ||
| 43 | </para> | ||
| 44 | |||
| 45 | <para> | ||
| 46 | When you run the <filename>bitbake</filename> command, the wrapper script in | ||
| 47 | <filename>scripts/</filename> is executed to run the main BitBake executable, | ||
| 48 | which resides in the <filename>bitbake/bin/</filename> directory. | ||
| 49 | Sourcing the <link linkend="structure-core-script">&OE_INIT_FILE;</link> | ||
| 50 | script places the <filename>scripts</filename> and <filename>bitbake/bin</filename> | ||
| 51 | directories (in that order) into the shell's <filename>PATH</filename> environment | ||
| 52 | variable. | ||
| 53 | </para> | ||
| 54 | |||
| 55 | <para> | ||
| 56 | For more information on BitBake, see the BitBake documentation | ||
| 57 | inculded in the <filename>bitbake/doc/manual</filename> directory of the | ||
| 58 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 59 | </para> | ||
| 60 | </section> | ||
| 61 | |||
| 62 | <section id='structure-core-build'> | ||
| 63 | <title><filename>build/</filename></title> | ||
| 64 | |||
| 65 | <para> | ||
| 66 | This directory contains user configuration files and the output | ||
| 67 | generated by the OpenEmbedded build system in its standard configuration where | ||
| 68 | the source tree is combined with the output. | ||
| 69 | The <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink> | ||
| 70 | is created initially when you <filename>source</filename> | ||
| 71 | the OpenEmbedded build environment setup script <filename>&OE_INIT_FILE;</filename>. | ||
| 72 | </para> | ||
| 73 | |||
| 74 | <para> | ||
| 75 | It is also possible to place output and configuration | ||
| 76 | files in a directory separate from the | ||
| 77 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink> | ||
| 78 | by providing a directory name when you <filename>source</filename> | ||
| 79 | the setup script. | ||
| 80 | For information on separating output from your local Source Directory files, see <link | ||
| 81 | linkend='structure-core-script'>&OE_INIT_FILE;</link>. | ||
| 82 | </para> | ||
| 83 | </section> | ||
| 84 | |||
| 85 | <section id='handbook'> | ||
| 86 | <title><filename>documentation</filename></title> | ||
| 87 | |||
| 88 | <para> | ||
| 89 | This directory holds the source for the Yocto Project documentation | ||
| 90 | as well as templates and tools that allow you to generate PDF and HTML | ||
| 91 | versions of the manuals. | ||
| 92 | Each manual is contained in a sub-folder. | ||
| 93 | For example, the files for this manual reside in | ||
| 94 | <filename>ref-manual</filename>. | ||
| 95 | </para> | ||
| 96 | </section> | ||
| 97 | |||
| 98 | <section id='structure-core-meta'> | ||
| 99 | <title><filename>meta/</filename></title> | ||
| 100 | |||
| 101 | <para> | ||
| 102 | This directory contains the OpenEmbedded Core metadata. | ||
| 103 | The directory holds recipes, common classes, and machine | ||
| 104 | configuration for emulated targets (qemux86, qemuarm, | ||
| 105 | and so on.) | ||
| 106 | </para> | ||
| 107 | </section> | ||
| 108 | |||
| 109 | <section id='structure-core-meta-yocto'> | ||
| 110 | <title><filename>meta-yocto/</filename></title> | ||
| 111 | |||
| 112 | <para> | ||
| 113 | This directory contains the configuration for the Poky | ||
| 114 | reference distribution. | ||
| 115 | </para> | ||
| 116 | </section> | ||
| 117 | |||
| 118 | <section id='structure-core-meta-yocto-bsp'> | ||
| 119 | <title><filename>meta-yocto-bsp/</filename></title> | ||
| 120 | |||
| 121 | <para> | ||
| 122 | This directory contains the Yocto Project reference | ||
| 123 | hardware BSPs. | ||
| 124 | </para> | ||
| 125 | </section> | ||
| 126 | |||
| 127 | <section id='structure-meta-hob'> | ||
| 128 | <title><filename>meta-hob/</filename></title> | ||
| 129 | |||
| 130 | <para> | ||
| 131 | This directory contains template recipes used by the | ||
| 132 | <ulink url='&YOCTO_HOME_URL;/projects/hob'>Hob</ulink> | ||
| 133 | build UI. | ||
| 134 | </para> | ||
| 135 | </section> | ||
| 136 | |||
| 137 | <section id='structure-meta-skeleton'> | ||
| 138 | <title><filename>meta-skeleton/</filename></title> | ||
| 139 | |||
| 140 | <para> | ||
| 141 | This directory contains template recipes for BSP and kernel development. | ||
| 142 | </para> | ||
| 143 | </section> | ||
| 144 | |||
| 145 | <section id='structure-core-scripts'> | ||
| 146 | <title><filename>scripts/</filename></title> | ||
| 147 | |||
| 148 | <para> | ||
| 149 | This directory contains various integration scripts that implement | ||
| 150 | extra functionality in the Yocto Project environment (e.g. QEMU scripts). | ||
| 151 | The <link linkend="structure-core-script">&OE_INIT_FILE;</link> script appends this | ||
| 152 | directory to the shell's <filename>PATH</filename> environment variable. | ||
| 153 | </para> | ||
| 154 | |||
| 155 | <para> | ||
| 156 | The <filename>scripts</filename> directory has useful scripts that assist contributing | ||
| 157 | back to the Yocto Project, such as <filename>create_pull_request</filename> and | ||
| 158 | <filename>send_pull_request</filename>. | ||
| 159 | </para> | ||
| 160 | </section> | ||
| 161 | |||
| 162 | <section id='structure-core-script'> | ||
| 163 | <title><filename>&OE_INIT_FILE;</filename></title> | ||
| 164 | |||
| 165 | <para> | ||
| 166 | This script sets up the OpenEmbedded build environment. | ||
| 167 | Running this script with the <filename>source</filename> command in | ||
| 168 | a shell makes changes to <filename>PATH</filename> and sets other core BitBake variables based on the | ||
| 169 | current working directory. | ||
| 170 | You need to run this script before running BitBake commands. | ||
| 171 | The script uses other scripts within the <filename>scripts</filename> directory to do | ||
| 172 | the bulk of the work. | ||
| 173 | </para> | ||
| 174 | |||
| 175 | <para> | ||
| 176 | By default, running this script without a Build Directory argument creates the | ||
| 177 | <filename>build</filename> directory. | ||
| 178 | If you provide a Build Directory argument when you <filename>source</filename> | ||
| 179 | the script, you direct OpenEmbedded build system to create a | ||
| 180 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink> of your choice. | ||
| 181 | For example, the following command creates a Build Directory named | ||
| 182 | <filename>mybuilds</filename> that is outside of the | ||
| 183 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>: | ||
| 184 | <literallayout class='monospaced'> | ||
| 185 | $ source &OE_INIT_FILE; ~/mybuilds | ||
| 186 | </literallayout> | ||
| 187 | <note> | ||
| 188 | The OpenEmbedded build system does not support file or directory names that | ||
| 189 | contain spaces. | ||
| 190 | If you attempt to run the <filename>&OE_INIT_FILE;</filename> script | ||
| 191 | from a Source Directory that contains spaces in either the filenames | ||
| 192 | or directory names, the script returns an error indicating no such | ||
| 193 | file or directory. | ||
| 194 | Be sure to use a Source Directory free of names containing spaces. | ||
| 195 | </note> | ||
| 196 | </para> | ||
| 197 | </section> | ||
| 198 | |||
| 199 | <section id='structure-basic-top-level'> | ||
| 200 | <title><filename>LICENSE, README, and README.hardware</filename></title> | ||
| 201 | |||
| 202 | <para> | ||
| 203 | These files are standard top-level files. | ||
| 204 | </para> | ||
| 205 | </section> | ||
| 206 | </section> | ||
| 207 | |||
| 208 | <section id='structure-build'> | ||
| 209 | <title>The Build Directory - <filename>build/</filename></title> | ||
| 210 | |||
| 211 | <section id='structure-build-pseudodone'> | ||
| 212 | <title><filename>build/pseudodone</filename></title> | ||
| 213 | |||
| 214 | <para> | ||
| 215 | This tag file indicates that the initial pseudo binary was created. | ||
| 216 | The file is built the first time BitBake is invoked. | ||
| 217 | </para> | ||
| 218 | </section> | ||
| 219 | |||
| 220 | <section id='structure-build-conf-local.conf'> | ||
| 221 | <title><filename>build/conf/local.conf</filename></title> | ||
| 222 | |||
| 223 | <para> | ||
| 224 | This file contains all the local user configuration for your build environment. | ||
| 225 | If there is no <filename>local.conf</filename> present, it is created from | ||
| 226 | <filename>local.conf.sample</filename>. | ||
| 227 | The <filename>local.conf</filename> file contains documentation on the various configuration options. | ||
| 228 | Any variable set here overrides any variable set elsewhere within the environment unless | ||
| 229 | that variable is hard-coded within a file (e.g. by using '=' instead of '?='). | ||
| 230 | Some variables are hard-coded for various reasons but these variables are | ||
| 231 | relatively rare. | ||
| 232 | </para> | ||
| 233 | |||
| 234 | <para> | ||
| 235 | Edit this file to set the <filename><link linkend='var-MACHINE'>MACHINE</link></filename> | ||
| 236 | for which you want to build, which package types you wish to use | ||
| 237 | (<link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>), | ||
| 238 | where you want to downloaded files | ||
| 239 | (<filename><link linkend='var-DL_DIR'>DL_DIR</link></filename>), | ||
| 240 | and how you want your host machine to use resources | ||
| 241 | (<link linkend='var-BB_NUMBER_THREADS'><filename>BB_NUMBER_THREADS</filename></link> and | ||
| 242 | <link linkend='var-PARALLEL_MAKE'><filename>PARALLEL_MAKE</filename></link>). | ||
| 243 | </para> | ||
| 244 | </section> | ||
| 245 | |||
| 246 | <section id='structure-build-conf-bblayers.conf'> | ||
| 247 | <title><filename>build/conf/bblayers.conf</filename></title> | ||
| 248 | |||
| 249 | <para> | ||
| 250 | This file defines layers, which are directory trees, traversed (or walked) by BitBake. | ||
| 251 | If <filename>bblayers.conf</filename> | ||
| 252 | is not present, it is created from <filename>bblayers.conf.sample</filename> when | ||
| 253 | you <filename>source</filename> the environment setup script. | ||
| 254 | </para> | ||
| 255 | |||
| 256 | <para> | ||
| 257 | The <filename>bblayers.conf</filename> file uses the | ||
| 258 | <link linkend='var-BBLAYERS'><filename>BBLAYERS</filename></link> variable to | ||
| 259 | list the layers BitBake tries to find. | ||
| 260 | The file uses the | ||
| 261 | <link linkend='var-BBLAYERS_NON_REMOVABLE'><filename>BBLAYERS_NON_REMOVABLE</filename></link> | ||
| 262 | variable to list layers that must not be removed. | ||
| 263 | </para> | ||
| 264 | </section> | ||
| 265 | |||
| 266 | <section id='structure-build-conf-sanity_info'> | ||
| 267 | <title><filename>build/conf/sanity_info</filename></title> | ||
| 268 | |||
| 269 | <para> | ||
| 270 | This file is created during the build to indicate the state of the sanity checks. | ||
| 271 | </para> | ||
| 272 | </section> | ||
| 273 | |||
| 274 | <section id='structure-build-downloads'> | ||
| 275 | <title><filename>build/downloads/</filename></title> | ||
| 276 | |||
| 277 | <para> | ||
| 278 | This directory is used for the upstream source tarballs. | ||
| 279 | The directory can be reused by multiple builds or moved to another location. | ||
| 280 | You can control the location of this directory through the | ||
| 281 | <filename><link linkend='var-DL_DIR'>DL_DIR</link></filename> variable. | ||
| 282 | </para> | ||
| 283 | </section> | ||
| 284 | |||
| 285 | <section id='structure-build-sstate-cache'> | ||
| 286 | <title><filename>build/sstate-cache/</filename></title> | ||
| 287 | |||
| 288 | <para> | ||
| 289 | This directory is used for the shared state cache. | ||
| 290 | The directory can be reused by multiple builds or moved to another location. | ||
| 291 | You can control the location of this directory through the | ||
| 292 | <filename><link linkend='var-SSTATE_DIR'>SSTATE_DIR</link></filename> variable. | ||
| 293 | </para> | ||
| 294 | </section> | ||
| 295 | |||
| 296 | <section id='structure-build-tmp'> | ||
| 297 | <title><filename>build/tmp/</filename></title> | ||
| 298 | |||
| 299 | <para> | ||
| 300 | This directory receives all the OpenEmbedded build system's output. | ||
| 301 | BitBake creates this directory if it does not exist. | ||
| 302 | As a last resort, to clean up a build and start it from scratch (other than the downloads), | ||
| 303 | you can remove everything in the <filename>tmp</filename> directory or get rid of the | ||
| 304 | directory completely. | ||
| 305 | If you do, you should also completely remove the <filename>build/sstate-cache</filename> | ||
| 306 | directory as well. | ||
| 307 | </para> | ||
| 308 | </section> | ||
| 309 | |||
| 310 | <section id='structure-build-tmp-buildstats'> | ||
| 311 | <title><filename>build/tmp/buildstats/</filename></title> | ||
| 312 | |||
| 313 | <para> | ||
| 314 | This directory stores the build statistics. | ||
| 315 | </para> | ||
| 316 | </section> | ||
| 317 | |||
| 318 | <section id='structure-build-tmp-cache'> | ||
| 319 | <title><filename>build/tmp/cache/</filename></title> | ||
| 320 | |||
| 321 | <para> | ||
| 322 | When BitBake parses the metadata, it creates a cache file of the result that can | ||
| 323 | be used when subsequently running commands. | ||
| 324 | These results are stored here on a per-machine basis. | ||
| 325 | </para> | ||
| 326 | </section> | ||
| 327 | |||
| 328 | <section id='structure-build-tmp-deploy'> | ||
| 329 | <title><filename>build/tmp/deploy/</filename></title> | ||
| 330 | |||
| 331 | <para> | ||
| 332 | This directory contains any 'end result' output from the OpenEmbedded build process. | ||
| 333 | </para> | ||
| 334 | </section> | ||
| 335 | |||
| 336 | <section id='structure-build-tmp-deploy-deb'> | ||
| 337 | <title><filename>build/tmp/deploy/deb/</filename></title> | ||
| 338 | |||
| 339 | <para> | ||
| 340 | This directory receives any <filename>.deb</filename> packages produced by | ||
| 341 | the build process. | ||
| 342 | The packages are sorted into feeds for different architecture types. | ||
| 343 | </para> | ||
| 344 | </section> | ||
| 345 | |||
| 346 | <section id='structure-build-tmp-deploy-rpm'> | ||
| 347 | <title><filename>build/tmp/deploy/rpm/</filename></title> | ||
| 348 | |||
| 349 | <para> | ||
| 350 | This directory receives any <filename>.rpm</filename> packages produced by | ||
| 351 | the build process. | ||
| 352 | The packages are sorted into feeds for different architecture types. | ||
| 353 | </para> | ||
| 354 | </section> | ||
| 355 | |||
| 356 | <section id='structure-build-tmp-deploy-licenses'> | ||
| 357 | <title><filename>build/tmp/deploy/licenses/</filename></title> | ||
| 358 | |||
| 359 | <para> | ||
| 360 | This directory receives package licensing information. | ||
| 361 | For example, the directory contains sub-directories for <filename>bash</filename>, | ||
| 362 | <filename>busybox</filename>, and <filename>eglibc</filename> (among others) that in turn | ||
| 363 | contain appropriate <filename>COPYING</filename> license files with other licensing information. | ||
| 364 | </para> | ||
| 365 | </section> | ||
| 366 | |||
| 367 | <section id='structure-build-tmp-deploy-images'> | ||
| 368 | <title><filename>build/tmp/deploy/images/</filename></title> | ||
| 369 | |||
| 370 | <para> | ||
| 371 | This directory receives complete filesystem images. | ||
| 372 | If you want to flash the resulting image from a build onto a device, look here for the image. | ||
| 373 | </para> | ||
| 374 | |||
| 375 | <para> | ||
| 376 | Be careful when deleting files in this directory. | ||
| 377 | You can safely delete old images from this directory (e.g. | ||
| 378 | <filename>core-image-*</filename>, <filename>hob-image-*</filename>, | ||
| 379 | etc.). | ||
| 380 | However, the kernel (<filename>*zImage*</filename>, <filename>*uImage*</filename>, etc.), | ||
| 381 | bootloader and other supplementary files might be deployed here prior to building an | ||
| 382 | image. | ||
| 383 | Because these files, however, are not directly produced from the image, if you | ||
| 384 | delete them they will not be automatically re-created when you build the image again. | ||
| 385 | </para> | ||
| 386 | |||
| 387 | <para> | ||
| 388 | If you do accidentally delete files here, you will need to force them to be | ||
| 389 | re-created. | ||
| 390 | In order to do that, you will need to know the target that produced them. | ||
| 391 | For example, these commands rebuild and re-create the kernel files: | ||
| 392 | <literallayout class='monospaced'> | ||
| 393 | $ bitbake -c clean virtual/kernel | ||
| 394 | $ bitbake virtual/kernel | ||
| 395 | </literallayout> | ||
| 396 | </para> | ||
| 397 | </section> | ||
| 398 | |||
| 399 | <section id='structure-build-tmp-deploy-ipk'> | ||
| 400 | <title><filename>build/tmp/deploy/ipk/</filename></title> | ||
| 401 | |||
| 402 | <para> | ||
| 403 | This directory receives <filename>.ipk</filename> packages produced by | ||
| 404 | the build process.</para> | ||
| 405 | </section> | ||
| 406 | |||
| 407 | <section id='structure-build-tmp-sysroots'> | ||
| 408 | <title><filename>build/tmp/sysroots/</filename></title> | ||
| 409 | |||
| 410 | <para> | ||
| 411 | This directory contains shared header files and libraries as well as other shared | ||
| 412 | data. | ||
| 413 | Packages that need to share output with other packages do so within this directory. | ||
| 414 | The directory is subdivided by architecture so multiple builds can run within | ||
| 415 | the one Build Directory. | ||
| 416 | </para> | ||
| 417 | </section> | ||
| 418 | |||
| 419 | <section id='structure-build-tmp-stamps'> | ||
| 420 | <title><filename>build/tmp/stamps/</filename></title> | ||
| 421 | |||
| 422 | <para> | ||
| 423 | This directory holds information that BitBake uses for accounting purposes | ||
| 424 | to track what tasks have run and when they have run. | ||
| 425 | The directory is sub-divided by architecture, package name, and | ||
| 426 | version. | ||
| 427 | Following is an example: | ||
| 428 | <literallayout class='monospaced'> | ||
| 429 | stamps/all-poky-linux/distcc-config/1.0-r0.do_build-2fdd....2do | ||
| 430 | </literallayout> | ||
| 431 | Although the files in the directory are empty of data, | ||
| 432 | BitBake uses the filenames and timestamps for tracking purposes. | ||
| 433 | </para> | ||
| 434 | </section> | ||
| 435 | |||
| 436 | <section id='structure-build-tmp-log'> | ||
| 437 | <title><filename>build/tmp/log/</filename></title> | ||
| 438 | |||
| 439 | <para> | ||
| 440 | This directory contains general logs that are not otherwise placed using the | ||
| 441 | package's <filename><link linkend='var-WORKDIR'>WORKDIR</link></filename>. | ||
| 442 | Examples of logs are the output from the <filename>check_pkg</filename> or | ||
| 443 | <filename>distro_check</filename> tasks. | ||
| 444 | Running a build does not necessarily mean this directory is created. | ||
| 445 | </para> | ||
| 446 | </section> | ||
| 447 | |||
| 448 | <section id='structure-build-tmp-pkgdata'> | ||
| 449 | <title><filename>build/tmp/pkgdata/</filename></title> | ||
| 450 | |||
| 451 | <para> | ||
| 452 | This directory contains intermediate packaging data that is used later in the packaging process. | ||
| 453 | For more information, see the "<link linkend='ref-classes-package'>Packaging - package*.bbclass</link>" section. | ||
| 454 | </para> | ||
| 455 | </section> | ||
| 456 | |||
| 457 | <section id='structure-build-tmp-work'> | ||
| 458 | <title><filename>build/tmp/work/</filename></title> | ||
| 459 | |||
| 460 | <para> | ||
| 461 | This directory contains architecture-specific work sub-directories | ||
| 462 | for packages built by BitBake. | ||
| 463 | All tasks execute from the appropriate work directory. | ||
| 464 | For example, the source for a particular package is unpacked, | ||
| 465 | patched, configured and compiled all within its own work directory. | ||
| 466 | Within the work directory, organization is based on the package group | ||
| 467 | and version for which the source is being compiled | ||
| 468 | as defined by the | ||
| 469 | <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>. | ||
| 470 | </para> | ||
| 471 | |||
| 472 | <para> | ||
| 473 | It is worth considering the structure of a typical work directory. | ||
| 474 | As an example, consider the <filename>linux-yocto-kernel-3.0</filename> | ||
| 475 | on the machine <filename>qemux86</filename> | ||
| 476 | built within the Yocto Project. | ||
| 477 | For this package, a work directory of | ||
| 478 | <filename>tmp/work/qemux86-poky-linux/linux-yocto/3.0+git1+<.....></filename>, | ||
| 479 | referred to as the | ||
| 480 | <filename><link linkend='var-WORKDIR'>WORKDIR</link></filename>, is created. | ||
| 481 | Within this directory, the source is unpacked to | ||
| 482 | <filename>linux-qemux86-standard-build</filename> and then patched by Quilt | ||
| 483 | (see the | ||
| 484 | "<ulink url='&YOCTO_DOCS_DEV_URL;#using-a-quilt-workflow'>Modifying Package | ||
| 485 | Source Code with Quilt</ulink>" section in the Yocto Project Development Manual. | ||
| 486 | Within the <filename>linux-qemux86-standard-build</filename> directory, | ||
| 487 | standard Quilt directories <filename>linux-3.0/patches</filename> | ||
| 488 | and <filename>linux-3.0/.pc</filename> are created, | ||
| 489 | and standard Quilt commands can be used. | ||
| 490 | </para> | ||
| 491 | |||
| 492 | <para> | ||
| 493 | There are other directories generated within <filename>WORKDIR</filename>. | ||
| 494 | The most important directory is <filename>WORKDIR/temp/</filename>, | ||
| 495 | which has log files for each task (<filename>log.do_*.pid</filename>) | ||
| 496 | and contains the scripts BitBake runs for each task | ||
| 497 | (<filename>run.do_*.pid</filename>). | ||
| 498 | The <filename>WORKDIR/image/</filename> directory is where "make | ||
| 499 | install" places its output that is then split into sub-packages | ||
| 500 | within <filename>WORKDIR/packages-split/</filename>. | ||
| 501 | </para> | ||
| 502 | </section> | ||
| 503 | </section> | ||
| 504 | |||
| 505 | <section id='structure-meta'> | ||
| 506 | <title>The Metadata - <filename>meta/</filename></title> | ||
| 507 | |||
| 508 | <para> | ||
| 509 | As mentioned previously, metadata is the core of the Yocto Project. | ||
| 510 | Metadata has several important subdivisions: | ||
| 511 | </para> | ||
| 512 | |||
| 513 | <section id='structure-meta-classes'> | ||
| 514 | <title><filename>meta/classes/</filename></title> | ||
| 515 | |||
| 516 | <para> | ||
| 517 | This directory contains the <filename>*.bbclass</filename> files. | ||
| 518 | Class files are used to abstract common code so it can be reused by multiple | ||
| 519 | packages. | ||
| 520 | Every package inherits the <filename>base.bbclass</filename> file. | ||
| 521 | Examples of other important classes are <filename>autotools.bbclass</filename>, which | ||
| 522 | in theory allows any Autotool-enabled package to work with the Yocto Project with minimal effort. | ||
| 523 | Another example is <filename>kernel.bbclass</filename> that contains common code and functions | ||
| 524 | for working with the Linux kernel. | ||
| 525 | Functions like image generation or packaging also have their specific class files | ||
| 526 | such as <filename>image.bbclass</filename>, <filename>rootfs_*.bbclass</filename> and | ||
| 527 | <filename>package*.bbclass</filename>. | ||
| 528 | </para> | ||
| 529 | </section> | ||
| 530 | |||
| 531 | <section id='structure-meta-conf'> | ||
| 532 | <title><filename>meta/conf/</filename></title> | ||
| 533 | |||
| 534 | <para> | ||
| 535 | This directory contains the core set of configuration files that start from | ||
| 536 | <filename>bitbake.conf</filename> and from which all other configuration | ||
| 537 | files are included. | ||
| 538 | See the include statements at the end of the file and you will note that even | ||
| 539 | <filename>local.conf</filename> is loaded from there. | ||
| 540 | While <filename>bitbake.conf</filename> sets up the defaults, you can often override | ||
| 541 | these by using the (<filename>local.conf</filename>) file, machine file or | ||
| 542 | the distribution configuration file. | ||
| 543 | </para> | ||
| 544 | </section> | ||
| 545 | |||
| 546 | <section id='structure-meta-conf-machine'> | ||
| 547 | <title><filename>meta/conf/machine/</filename></title> | ||
| 548 | |||
| 549 | <para> | ||
| 550 | This directory contains all the machine configuration files. | ||
| 551 | If you set <filename>MACHINE="qemux86"</filename>, | ||
| 552 | the OpenEmbedded build system looks for a <filename>qemux86.conf</filename> file in this | ||
| 553 | directory. | ||
| 554 | The <filename>include</filename> directory contains various data common to multiple machines. | ||
| 555 | If you want to add support for a new machine to the Yocto Project, look in this directory. | ||
| 556 | </para> | ||
| 557 | </section> | ||
| 558 | |||
| 559 | <section id='structure-meta-conf-distro'> | ||
| 560 | <title><filename>meta/conf/distro/</filename></title> | ||
| 561 | |||
| 562 | <para> | ||
| 563 | Any distribution-specific configuration is controlled from this directory. | ||
| 564 | For the Yocto Project, the <filename>defaultsetup.conf</filename> is the main file here. | ||
| 565 | This directory includes the versions and the | ||
| 566 | <filename>SRCDATE</filename> definitions for applications that are configured here. | ||
| 567 | An example of an alternative configuration might be <filename>poky-bleeding.conf</filename>. | ||
| 568 | Although this file mainly inherits its configuration from Poky. | ||
| 569 | </para> | ||
| 570 | </section> | ||
| 571 | |||
| 572 | <section id='structure-meta-recipes-bsp'> | ||
| 573 | <title><filename>meta/recipes-bsp/</filename></title> | ||
| 574 | |||
| 575 | <para> | ||
| 576 | This directory contains anything linking to specific hardware or hardware | ||
| 577 | configuration information such as "u-boot" and "grub". | ||
| 578 | </para> | ||
| 579 | </section> | ||
| 580 | |||
| 581 | <section id='structure-meta-recipes-connectivity'> | ||
| 582 | <title><filename>meta/recipes-connectivity/</filename></title> | ||
| 583 | |||
| 584 | <para> | ||
| 585 | This directory contains libraries and applications related to communication with other devices. | ||
| 586 | </para> | ||
| 587 | </section> | ||
| 588 | |||
| 589 | <section id='structure-meta-recipes-core'> | ||
| 590 | <title><filename>meta/recipes-core/</filename></title> | ||
| 591 | |||
| 592 | <para> | ||
| 593 | This directory contains what is needed to build a basic working Linux image | ||
| 594 | including commonly used dependencies. | ||
| 595 | </para> | ||
| 596 | </section> | ||
| 597 | |||
| 598 | <section id='structure-meta-recipes-devtools'> | ||
| 599 | <title><filename>meta/recipes-devtools/</filename></title> | ||
| 600 | |||
| 601 | <para> | ||
| 602 | This directory contains tools that are primarily used by the build system. | ||
| 603 | The tools, however, can also be used on targets. | ||
| 604 | </para> | ||
| 605 | </section> | ||
| 606 | |||
| 607 | <section id='structure-meta-recipes-extended'> | ||
| 608 | <title><filename>meta/recipes-extended/</filename></title> | ||
| 609 | |||
| 610 | <para> | ||
| 611 | This directory contains non-essential applications that add features compared to the | ||
| 612 | alternatives in core. | ||
| 613 | You might need this directory for full tool functionality or for Linux Standard Base (LSB) | ||
| 614 | compliance. | ||
| 615 | </para> | ||
| 616 | </section> | ||
| 617 | |||
| 618 | <section id='structure-meta-recipes-gnome'> | ||
| 619 | <title><filename>meta/recipes-gnome/</filename></title> | ||
| 620 | |||
| 621 | <para> | ||
| 622 | This directory contains all things related to the GTK+ application framework. | ||
| 623 | </para> | ||
| 624 | </section> | ||
| 625 | |||
| 626 | <section id='structure-meta-recipes-graphics'> | ||
| 627 | <title><filename>meta/recipes-graphics/</filename></title> | ||
| 628 | |||
| 629 | <para> | ||
| 630 | This directory contains X and other graphically related system libraries | ||
| 631 | </para> | ||
| 632 | </section> | ||
| 633 | |||
| 634 | <section id='structure-meta-recipes-kernel'> | ||
| 635 | <title><filename>meta/recipes-kernel/</filename></title> | ||
| 636 | |||
| 637 | <para> | ||
| 638 | This directory contains the kernel and generic applications and libraries that | ||
| 639 | have strong kernel dependencies. | ||
| 640 | </para> | ||
| 641 | </section> | ||
| 642 | |||
| 643 | <section id='structure-meta-recipes-multimedia'> | ||
| 644 | <title><filename>meta/recipes-multimedia/</filename></title> | ||
| 645 | |||
| 646 | <para> | ||
| 647 | This directory contains codecs and support utilities for audio, images and video. | ||
| 648 | </para> | ||
| 649 | </section> | ||
| 650 | |||
| 651 | <section id='structure-meta-recipes-qt'> | ||
| 652 | <title><filename>meta/recipes-qt/</filename></title> | ||
| 653 | |||
| 654 | <para> | ||
| 655 | This directory contains all things related to the Qt application framework. | ||
| 656 | </para> | ||
| 657 | </section> | ||
| 658 | |||
| 659 | <section id='structure-meta-recipes-rt'> | ||
| 660 | <title><filename>meta/recipes-rt/</filename></title> | ||
| 661 | |||
| 662 | <para> | ||
| 663 | This directory contains package and image recipes for using and testing | ||
| 664 | the <filename>PREEMPT_RT</filename> kernel. | ||
| 665 | </para> | ||
| 666 | </section> | ||
| 667 | |||
| 668 | <section id='structure-meta-recipes-sato'> | ||
| 669 | <title><filename>meta/recipes-sato/</filename></title> | ||
| 670 | |||
| 671 | <para> | ||
| 672 | This directory contains the Sato demo/reference UI/UX and its associated applications | ||
| 673 | and configuration data. | ||
| 674 | </para> | ||
| 675 | </section> | ||
| 676 | |||
| 677 | <section id='structure-meta-recipes-support'> | ||
| 678 | <title><filename>meta/recipes-support/</filename></title> | ||
| 679 | |||
| 680 | <para> | ||
| 681 | This directory contains recipes that used by other recipes, but that are not directly | ||
| 682 | included in images (i.e. dependencies of other recipes). | ||
| 683 | </para> | ||
| 684 | </section> | ||
| 685 | |||
| 686 | <section id='structure-meta-site'> | ||
| 687 | <title><filename>meta/site/</filename></title> | ||
| 688 | |||
| 689 | <para> | ||
| 690 | This directory contains a list of cached results for various architectures. | ||
| 691 | Because certain "autoconf" test results cannot be determined when cross-compiling due to | ||
| 692 | the tests not able to run on a live system, the information in this directory is | ||
| 693 | passed to "autoconf" for the various architectures. | ||
| 694 | </para> | ||
| 695 | </section> | ||
| 696 | |||
| 697 | <section id='structure-meta-recipes-txt'> | ||
| 698 | <title><filename>meta/recipes.txt</filename></title> | ||
| 699 | |||
| 700 | <para> | ||
| 701 | This file is a description of the contents of <filename>recipes-*</filename>. | ||
| 702 | </para> | ||
| 703 | </section> | ||
| 704 | </section> | ||
| 705 | |||
| 706 | </chapter> | ||
| 707 | <!-- | ||
| 708 | vim: expandtab tw=80 ts=4 | ||
| 709 | --> | ||
diff --git a/documentation/ref-manual/ref-style.css b/documentation/ref-manual/ref-style.css new file mode 100644 index 0000000000..e896a39d33 --- /dev/null +++ b/documentation/ref-manual/ref-style.css | |||
| @@ -0,0 +1,979 @@ | |||
| 1 | /* | ||
| 2 | Generic XHTML / DocBook XHTML CSS Stylesheet. | ||
| 3 | |||
| 4 | Browser wrangling and typographic design by | ||
| 5 | Oyvind Kolas / pippin@gimp.org | ||
| 6 | |||
| 7 | Customised for Poky by | ||
| 8 | Matthew Allum / mallum@o-hand.com | ||
| 9 | |||
| 10 | Thanks to: | ||
| 11 | Liam R. E. Quin | ||
| 12 | William Skaggs | ||
| 13 | Jakub Steiner | ||
| 14 | |||
| 15 | Structure | ||
| 16 | --------- | ||
| 17 | |||
| 18 | The stylesheet is divided into the following sections: | ||
| 19 | |||
| 20 | Positioning | ||
| 21 | Margins, paddings, width, font-size, clearing. | ||
| 22 | Decorations | ||
| 23 | Borders, style | ||
| 24 | Colors | ||
| 25 | Colors | ||
| 26 | Graphics | ||
| 27 | Graphical backgrounds | ||
| 28 | Nasty IE tweaks | ||
| 29 | Workarounds needed to make it work in internet explorer, | ||
| 30 | currently makes the stylesheet non validating, but up until | ||
| 31 | this point it is validating. | ||
| 32 | Mozilla extensions | ||
| 33 | Transparency for footer | ||
| 34 | Rounded corners on boxes | ||
| 35 | |||
| 36 | */ | ||
| 37 | |||
| 38 | |||
| 39 | /*************** / | ||
| 40 | / Positioning / | ||
| 41 | / ***************/ | ||
| 42 | |||
| 43 | body { | ||
| 44 | font-family: Verdana, Sans, sans-serif; | ||
| 45 | |||
| 46 | min-width: 640px; | ||
| 47 | width: 80%; | ||
| 48 | margin: 0em auto; | ||
| 49 | padding: 2em 5em 5em 5em; | ||
| 50 | color: #333; | ||
| 51 | } | ||
| 52 | |||
| 53 | h1,h2,h3,h4,h5,h6,h7 { | ||
| 54 | font-family: Arial, Sans; | ||
| 55 | color: #00557D; | ||
| 56 | clear: both; | ||
| 57 | } | ||
| 58 | |||
| 59 | h1 { | ||
| 60 | font-size: 2em; | ||
| 61 | text-align: left; | ||
| 62 | padding: 0em 0em 0em 0em; | ||
| 63 | margin: 2em 0em 0em 0em; | ||
| 64 | } | ||
| 65 | |||
| 66 | h2.subtitle { | ||
| 67 | margin: 0.10em 0em 3.0em 0em; | ||
| 68 | padding: 0em 0em 0em 0em; | ||
| 69 | font-size: 1.8em; | ||
| 70 | padding-left: 20%; | ||
| 71 | font-weight: normal; | ||
| 72 | font-style: italic; | ||
| 73 | } | ||
| 74 | |||
| 75 | h2 { | ||
| 76 | margin: 2em 0em 0.66em 0em; | ||
| 77 | padding: 0.5em 0em 0em 0em; | ||
| 78 | font-size: 1.5em; | ||
| 79 | font-weight: bold; | ||
| 80 | } | ||
| 81 | |||
| 82 | h3.subtitle { | ||
| 83 | margin: 0em 0em 1em 0em; | ||
| 84 | padding: 0em 0em 0em 0em; | ||
| 85 | font-size: 142.14%; | ||
| 86 | text-align: right; | ||
| 87 | } | ||
| 88 | |||
| 89 | h3 { | ||
| 90 | margin: 1em 0em 0.5em 0em; | ||
| 91 | padding: 1em 0em 0em 0em; | ||
| 92 | font-size: 140%; | ||
| 93 | font-weight: bold; | ||
| 94 | } | ||
| 95 | |||
| 96 | h4 { | ||
| 97 | margin: 1em 0em 0.5em 0em; | ||
| 98 | padding: 1em 0em 0em 0em; | ||
| 99 | font-size: 120%; | ||
| 100 | font-weight: bold; | ||
| 101 | } | ||
| 102 | |||
| 103 | h5 { | ||
| 104 | margin: 1em 0em 0.5em 0em; | ||
| 105 | padding: 1em 0em 0em 0em; | ||
| 106 | font-size: 110%; | ||
| 107 | font-weight: bold; | ||
| 108 | } | ||
| 109 | |||
| 110 | h6 { | ||
| 111 | margin: 1em 0em 0em 0em; | ||
| 112 | padding: 1em 0em 0em 0em; | ||
| 113 | font-size: 110%; | ||
| 114 | font-weight: bold; | ||
| 115 | } | ||
| 116 | |||
| 117 | .authorgroup { | ||
| 118 | background-color: transparent; | ||
| 119 | background-repeat: no-repeat; | ||
| 120 | padding-top: 256px; | ||
| 121 | background-image: url("figures/poky-title.png"); | ||
| 122 | background-position: left top; | ||
| 123 | margin-top: -256px; | ||
| 124 | padding-right: 50px; | ||
| 125 | margin-left: 0px; | ||
| 126 | text-align: right; | ||
| 127 | width: 740px; | ||
| 128 | } | ||
| 129 | |||
| 130 | h3.author { | ||
| 131 | margin: 0em 0me 0em 0em; | ||
| 132 | padding: 0em 0em 0em 0em; | ||
| 133 | font-weight: normal; | ||
| 134 | font-size: 100%; | ||
| 135 | color: #333; | ||
| 136 | clear: both; | ||
| 137 | } | ||
| 138 | |||
| 139 | .author tt.email { | ||
| 140 | font-size: 66%; | ||
| 141 | } | ||
| 142 | |||
| 143 | .titlepage hr { | ||
| 144 | width: 0em; | ||
| 145 | clear: both; | ||
| 146 | } | ||
| 147 | |||
| 148 | .revhistory { | ||
| 149 | padding-top: 2em; | ||
| 150 | clear: both; | ||
| 151 | } | ||
| 152 | |||
| 153 | .toc, | ||
| 154 | .list-of-tables, | ||
| 155 | .list-of-examples, | ||
| 156 | .list-of-figures { | ||
| 157 | padding: 1.33em 0em 2.5em 0em; | ||
| 158 | color: #00557D; | ||
| 159 | } | ||
| 160 | |||
| 161 | .toc p, | ||
| 162 | .list-of-tables p, | ||
| 163 | .list-of-figures p, | ||
| 164 | .list-of-examples p { | ||
| 165 | padding: 0em 0em 0em 0em; | ||
| 166 | padding: 0em 0em 0.3em; | ||
| 167 | margin: 1.5em 0em 0em 0em; | ||
| 168 | } | ||
| 169 | |||
| 170 | .toc p b, | ||
| 171 | .list-of-tables p b, | ||
| 172 | .list-of-figures p b, | ||
| 173 | .list-of-examples p b{ | ||
| 174 | font-size: 100.0%; | ||
| 175 | font-weight: bold; | ||
| 176 | } | ||
| 177 | |||
| 178 | .toc dl, | ||
| 179 | .list-of-tables dl, | ||
| 180 | .list-of-figures dl, | ||
| 181 | .list-of-examples dl { | ||
| 182 | margin: 0em 0em 0.5em 0em; | ||
| 183 | padding: 0em 0em 0em 0em; | ||
| 184 | } | ||
| 185 | |||
| 186 | .toc dt { | ||
| 187 | margin: 0em 0em 0em 0em; | ||
| 188 | padding: 0em 0em 0em 0em; | ||
| 189 | } | ||
| 190 | |||
| 191 | .toc dd { | ||
| 192 | margin: 0em 0em 0em 2.6em; | ||
| 193 | padding: 0em 0em 0em 0em; | ||
| 194 | } | ||
| 195 | |||
| 196 | div.glossary dl, | ||
| 197 | div.variablelist dl { | ||
| 198 | } | ||
| 199 | |||
| 200 | .glossary dl dt, | ||
| 201 | .variablelist dl dt, | ||
| 202 | .variablelist dl dt span.term { | ||
| 203 | font-weight: normal; | ||
| 204 | width: 20em; | ||
| 205 | text-align: right; | ||
| 206 | } | ||
| 207 | |||
| 208 | .variablelist dl dt { | ||
| 209 | margin-top: 0.5em; | ||
| 210 | } | ||
| 211 | |||
| 212 | .glossary dl dd, | ||
| 213 | .variablelist dl dd { | ||
| 214 | margin-top: -1em; | ||
| 215 | margin-left: 25.5em; | ||
| 216 | } | ||
| 217 | |||
| 218 | .glossary dd p, | ||
| 219 | .variablelist dd p { | ||
| 220 | margin-top: 0em; | ||
| 221 | margin-bottom: 1em; | ||
| 222 | } | ||
| 223 | |||
| 224 | |||
| 225 | div.calloutlist table td { | ||
| 226 | padding: 0em 0em 0em 0em; | ||
| 227 | margin: 0em 0em 0em 0em; | ||
| 228 | } | ||
| 229 | |||
| 230 | div.calloutlist table td p { | ||
| 231 | margin-top: 0em; | ||
| 232 | margin-bottom: 1em; | ||
| 233 | } | ||
| 234 | |||
| 235 | div p.copyright { | ||
| 236 | text-align: left; | ||
| 237 | } | ||
| 238 | |||
| 239 | div.legalnotice p.legalnotice-title { | ||
| 240 | margin-bottom: 0em; | ||
| 241 | } | ||
| 242 | |||
| 243 | p { | ||
| 244 | line-height: 1.5em; | ||
| 245 | margin-top: 0em; | ||
| 246 | |||
| 247 | } | ||
| 248 | |||
| 249 | dl { | ||
| 250 | padding-top: 0em; | ||
| 251 | } | ||
| 252 | |||
| 253 | hr { | ||
| 254 | border: solid 1px; | ||
| 255 | } | ||
| 256 | |||
| 257 | |||
| 258 | .mediaobject, | ||
| 259 | .mediaobjectco { | ||
| 260 | text-align: center; | ||
| 261 | } | ||
| 262 | |||
| 263 | img { | ||
| 264 | border: none; | ||
| 265 | } | ||
| 266 | |||
| 267 | ul { | ||
| 268 | padding: 0em 0em 0em 1.5em; | ||
| 269 | } | ||
| 270 | |||
| 271 | ul li { | ||
| 272 | padding: 0em 0em 0em 0em; | ||
| 273 | } | ||
| 274 | |||
| 275 | ul li p { | ||
| 276 | text-align: left; | ||
| 277 | } | ||
| 278 | |||
| 279 | table { | ||
| 280 | width :100%; | ||
| 281 | } | ||
| 282 | |||
| 283 | th { | ||
| 284 | padding: 0.25em; | ||
| 285 | text-align: left; | ||
| 286 | font-weight: normal; | ||
| 287 | vertical-align: top; | ||
| 288 | } | ||
| 289 | |||
| 290 | td { | ||
| 291 | padding: 0.25em; | ||
| 292 | vertical-align: top; | ||
| 293 | } | ||
| 294 | |||
| 295 | p a[id] { | ||
| 296 | margin: 0px; | ||
| 297 | padding: 0px; | ||
| 298 | display: inline; | ||
| 299 | background-image: none; | ||
| 300 | } | ||
| 301 | |||
| 302 | a { | ||
| 303 | text-decoration: underline; | ||
| 304 | color: #444; | ||
| 305 | } | ||
| 306 | |||
| 307 | pre { | ||
| 308 | overflow: auto; | ||
| 309 | } | ||
| 310 | |||
| 311 | a:hover { | ||
| 312 | text-decoration: underline; | ||
| 313 | /*font-weight: bold;*/ | ||
| 314 | } | ||
| 315 | |||
| 316 | |||
| 317 | div.informalfigure, | ||
| 318 | div.informalexample, | ||
| 319 | div.informaltable, | ||
| 320 | div.figure, | ||
| 321 | div.table, | ||
| 322 | div.example { | ||
| 323 | margin: 1em 0em; | ||
| 324 | padding: 1em; | ||
| 325 | page-break-inside: avoid; | ||
| 326 | } | ||
| 327 | |||
| 328 | |||
| 329 | div.informalfigure p.title b, | ||
| 330 | div.informalexample p.title b, | ||
| 331 | div.informaltable p.title b, | ||
| 332 | div.figure p.title b, | ||
| 333 | div.example p.title b, | ||
| 334 | div.table p.title b{ | ||
| 335 | padding-top: 0em; | ||
| 336 | margin-top: 0em; | ||
| 337 | font-size: 100%; | ||
| 338 | font-weight: normal; | ||
| 339 | } | ||
| 340 | |||
| 341 | .mediaobject .caption, | ||
| 342 | .mediaobject .caption p { | ||
| 343 | text-align: center; | ||
| 344 | font-size: 80%; | ||
| 345 | padding-top: 0.5em; | ||
| 346 | padding-bottom: 0.5em; | ||
| 347 | } | ||
| 348 | |||
| 349 | .epigraph { | ||
| 350 | padding-left: 55%; | ||
| 351 | margin-bottom: 1em; | ||
| 352 | } | ||
| 353 | |||
| 354 | .epigraph p { | ||
| 355 | text-align: left; | ||
| 356 | } | ||
| 357 | |||
| 358 | .epigraph .quote { | ||
| 359 | font-style: italic; | ||
| 360 | } | ||
| 361 | .epigraph .attribution { | ||
| 362 | font-style: normal; | ||
| 363 | text-align: right; | ||
| 364 | } | ||
| 365 | |||
| 366 | span.application { | ||
| 367 | font-style: italic; | ||
| 368 | } | ||
| 369 | |||
| 370 | .programlisting { | ||
| 371 | font-family: monospace; | ||
| 372 | font-size: 80%; | ||
| 373 | white-space: pre; | ||
| 374 | margin: 1.33em 0em; | ||
| 375 | padding: 1.33em; | ||
| 376 | } | ||
| 377 | |||
| 378 | .tip, | ||
| 379 | .warning, | ||
| 380 | .caution, | ||
| 381 | .note { | ||
| 382 | margin-top: 1em; | ||
| 383 | margin-bottom: 1em; | ||
| 384 | |||
| 385 | } | ||
| 386 | |||
| 387 | /* force full width of table within div */ | ||
| 388 | .tip table, | ||
| 389 | .warning table, | ||
| 390 | .caution table, | ||
| 391 | .note table { | ||
| 392 | border: none; | ||
| 393 | width: 100%; | ||
| 394 | } | ||
| 395 | |||
| 396 | |||
| 397 | .tip table th, | ||
| 398 | .warning table th, | ||
| 399 | .caution table th, | ||
| 400 | .note table th { | ||
| 401 | padding: 0.8em 0.0em 0.0em 0.0em; | ||
| 402 | margin : 0em 0em 0em 0em; | ||
| 403 | } | ||
| 404 | |||
| 405 | .tip p, | ||
| 406 | .warning p, | ||
| 407 | .caution p, | ||
| 408 | .note p { | ||
| 409 | margin-top: 0.5em; | ||
| 410 | margin-bottom: 0.5em; | ||
| 411 | padding-right: 1em; | ||
| 412 | text-align: left; | ||
| 413 | } | ||
| 414 | |||
| 415 | .acronym { | ||
| 416 | text-transform: uppercase; | ||
| 417 | } | ||
| 418 | |||
| 419 | b.keycap, | ||
| 420 | .keycap { | ||
| 421 | padding: 0.09em 0.3em; | ||
| 422 | margin: 0em; | ||
| 423 | } | ||
| 424 | |||
| 425 | .itemizedlist li { | ||
| 426 | clear: none; | ||
| 427 | } | ||
| 428 | |||
| 429 | .filename { | ||
| 430 | font-size: medium; | ||
| 431 | font-family: Courier, monospace; | ||
| 432 | } | ||
| 433 | |||
| 434 | |||
| 435 | div.navheader, div.heading{ | ||
| 436 | position: absolute; | ||
| 437 | left: 0em; | ||
| 438 | top: 0em; | ||
| 439 | width: 100%; | ||
| 440 | background-color: #cdf; | ||
| 441 | width: 100%; | ||
| 442 | } | ||
| 443 | |||
| 444 | div.navfooter, div.footing{ | ||
| 445 | position: fixed; | ||
| 446 | left: 0em; | ||
| 447 | bottom: 0em; | ||
| 448 | background-color: #eee; | ||
| 449 | width: 100%; | ||
| 450 | } | ||
| 451 | |||
| 452 | |||
| 453 | div.navheader td, | ||
| 454 | div.navfooter td { | ||
| 455 | font-size: 66%; | ||
| 456 | } | ||
| 457 | |||
| 458 | div.navheader table th { | ||
| 459 | /*font-family: Georgia, Times, serif;*/ | ||
| 460 | /*font-size: x-large;*/ | ||
| 461 | font-size: 80%; | ||
| 462 | } | ||
| 463 | |||
| 464 | div.navheader table { | ||
| 465 | border-left: 0em; | ||
| 466 | border-right: 0em; | ||
| 467 | border-top: 0em; | ||
| 468 | width: 100%; | ||
| 469 | } | ||
| 470 | |||
| 471 | div.navfooter table { | ||
| 472 | border-left: 0em; | ||
| 473 | border-right: 0em; | ||
| 474 | border-bottom: 0em; | ||
| 475 | width: 100%; | ||
| 476 | } | ||
| 477 | |||
| 478 | div.navheader table td a, | ||
| 479 | div.navfooter table td a { | ||
| 480 | color: #777; | ||
| 481 | text-decoration: none; | ||
| 482 | } | ||
| 483 | |||
| 484 | /* normal text in the footer */ | ||
| 485 | div.navfooter table td { | ||
| 486 | color: black; | ||
| 487 | } | ||
| 488 | |||
| 489 | div.navheader table td a:visited, | ||
| 490 | div.navfooter table td a:visited { | ||
| 491 | color: #444; | ||
| 492 | } | ||
| 493 | |||
| 494 | |||
| 495 | /* links in header and footer */ | ||
| 496 | div.navheader table td a:hover, | ||
| 497 | div.navfooter table td a:hover { | ||
| 498 | text-decoration: underline; | ||
| 499 | background-color: transparent; | ||
| 500 | color: #33a; | ||
| 501 | } | ||
| 502 | |||
| 503 | div.navheader hr, | ||
| 504 | div.navfooter hr { | ||
| 505 | display: none; | ||
| 506 | } | ||
| 507 | |||
| 508 | |||
| 509 | .qandaset tr.question td p { | ||
| 510 | margin: 0em 0em 1em 0em; | ||
| 511 | padding: 0em 0em 0em 0em; | ||
| 512 | } | ||
| 513 | |||
| 514 | .qandaset tr.answer td p { | ||
| 515 | margin: 0em 0em 1em 0em; | ||
| 516 | padding: 0em 0em 0em 0em; | ||
| 517 | } | ||
| 518 | .answer td { | ||
| 519 | padding-bottom: 1.5em; | ||
| 520 | } | ||
| 521 | |||
| 522 | .emphasis { | ||
| 523 | font-weight: bold; | ||
| 524 | } | ||
| 525 | |||
| 526 | |||
| 527 | /************* / | ||
| 528 | / decorations / | ||
| 529 | / *************/ | ||
| 530 | |||
| 531 | .titlepage { | ||
| 532 | } | ||
| 533 | |||
| 534 | .part .title { | ||
| 535 | } | ||
| 536 | |||
| 537 | .subtitle { | ||
| 538 | border: none; | ||
| 539 | } | ||
| 540 | |||
| 541 | /* | ||
| 542 | h1 { | ||
| 543 | border: none; | ||
| 544 | } | ||
| 545 | |||
| 546 | h2 { | ||
| 547 | border-top: solid 0.2em; | ||
| 548 | border-bottom: solid 0.06em; | ||
| 549 | } | ||
| 550 | |||
| 551 | h3 { | ||
| 552 | border-top: 0em; | ||
| 553 | border-bottom: solid 0.06em; | ||
| 554 | } | ||
| 555 | |||
| 556 | h4 { | ||
| 557 | border: 0em; | ||
| 558 | border-bottom: solid 0.06em; | ||
| 559 | } | ||
| 560 | |||
| 561 | h5 { | ||
| 562 | border: 0em; | ||
| 563 | } | ||
| 564 | */ | ||
| 565 | |||
| 566 | .programlisting { | ||
| 567 | border: solid 1px; | ||
| 568 | } | ||
| 569 | |||
| 570 | div.figure, | ||
| 571 | div.table, | ||
| 572 | div.informalfigure, | ||
| 573 | div.informaltable, | ||
| 574 | div.informalexample, | ||
| 575 | div.example { | ||
| 576 | border: 1px solid; | ||
| 577 | } | ||
| 578 | |||
| 579 | |||
| 580 | |||
| 581 | .tip, | ||
| 582 | .warning, | ||
| 583 | .caution, | ||
| 584 | .note { | ||
| 585 | border: 1px solid; | ||
| 586 | } | ||
| 587 | |||
| 588 | .tip table th, | ||
| 589 | .warning table th, | ||
| 590 | .caution table th, | ||
| 591 | .note table th { | ||
| 592 | border-bottom: 1px solid; | ||
| 593 | } | ||
| 594 | |||
| 595 | .question td { | ||
| 596 | border-top: 1px solid black; | ||
| 597 | } | ||
| 598 | |||
| 599 | .answer { | ||
| 600 | } | ||
| 601 | |||
| 602 | |||
| 603 | b.keycap, | ||
| 604 | .keycap { | ||
| 605 | border: 1px solid; | ||
| 606 | } | ||
| 607 | |||
| 608 | |||
| 609 | div.navheader, div.heading{ | ||
| 610 | border-bottom: 1px solid; | ||
| 611 | } | ||
| 612 | |||
| 613 | |||
| 614 | div.navfooter, div.footing{ | ||
| 615 | border-top: 1px solid; | ||
| 616 | } | ||
| 617 | |||
| 618 | /********* / | ||
| 619 | / colors / | ||
| 620 | / *********/ | ||
| 621 | |||
| 622 | body { | ||
| 623 | color: #333; | ||
| 624 | background: white; | ||
| 625 | } | ||
| 626 | |||
| 627 | a { | ||
| 628 | background: transparent; | ||
| 629 | } | ||
| 630 | |||
| 631 | a:hover { | ||
| 632 | background-color: #dedede; | ||
| 633 | } | ||
| 634 | |||
| 635 | |||
| 636 | h1, | ||
| 637 | h2, | ||
| 638 | h3, | ||
| 639 | h4, | ||
| 640 | h5, | ||
| 641 | h6, | ||
| 642 | h7, | ||
| 643 | h8 { | ||
| 644 | background-color: transparent; | ||
| 645 | } | ||
| 646 | |||
| 647 | hr { | ||
| 648 | border-color: #aaa; | ||
| 649 | } | ||
| 650 | |||
| 651 | |||
| 652 | .tip, .warning, .caution, .note { | ||
| 653 | border-color: #fff; | ||
| 654 | } | ||
| 655 | |||
| 656 | |||
| 657 | .tip table th, | ||
| 658 | .warning table th, | ||
| 659 | .caution table th, | ||
| 660 | .note table th { | ||
| 661 | border-bottom-color: #fff; | ||
| 662 | } | ||
| 663 | |||
| 664 | |||
| 665 | .warning { | ||
| 666 | background-color: #f0f0f2; | ||
| 667 | } | ||
| 668 | |||
| 669 | .caution { | ||
| 670 | background-color: #f0f0f2; | ||
| 671 | } | ||
| 672 | |||
| 673 | .tip { | ||
| 674 | background-color: #f0f0f2; | ||
| 675 | } | ||
| 676 | |||
| 677 | .note { | ||
| 678 | background-color: #f0f0f2; | ||
| 679 | } | ||
| 680 | |||
| 681 | .glossary dl dt, | ||
| 682 | .variablelist dl dt, | ||
| 683 | .variablelist dl dt span.term { | ||
| 684 | color: #044; | ||
| 685 | } | ||
| 686 | |||
| 687 | div.figure, | ||
| 688 | div.table, | ||
| 689 | div.example, | ||
| 690 | div.informalfigure, | ||
| 691 | div.informaltable, | ||
| 692 | div.informalexample { | ||
| 693 | border-color: #aaa; | ||
| 694 | } | ||
| 695 | |||
| 696 | pre.programlisting { | ||
| 697 | color: black; | ||
| 698 | background-color: #fff; | ||
| 699 | border-color: #aaa; | ||
| 700 | border-width: 2px; | ||
| 701 | } | ||
| 702 | |||
| 703 | .guimenu, | ||
| 704 | .guilabel, | ||
| 705 | .guimenuitem { | ||
| 706 | background-color: #eee; | ||
| 707 | } | ||
| 708 | |||
| 709 | |||
| 710 | b.keycap, | ||
| 711 | .keycap { | ||
| 712 | background-color: #eee; | ||
| 713 | border-color: #999; | ||
| 714 | } | ||
| 715 | |||
| 716 | |||
| 717 | div.navheader { | ||
| 718 | border-color: black; | ||
| 719 | } | ||
| 720 | |||
| 721 | |||
| 722 | div.navfooter { | ||
| 723 | border-color: black; | ||
| 724 | } | ||
| 725 | |||
| 726 | |||
| 727 | /*********** / | ||
| 728 | / graphics / | ||
| 729 | / ***********/ | ||
| 730 | |||
| 731 | /* | ||
| 732 | body { | ||
| 733 | background-image: url("images/body_bg.jpg"); | ||
| 734 | background-attachment: fixed; | ||
| 735 | } | ||
| 736 | |||
| 737 | .navheader, | ||
| 738 | .note, | ||
| 739 | .tip { | ||
| 740 | background-image: url("images/note_bg.jpg"); | ||
| 741 | background-attachment: fixed; | ||
| 742 | } | ||
| 743 | |||
| 744 | .warning, | ||
| 745 | .caution { | ||
| 746 | background-image: url("images/warning_bg.jpg"); | ||
| 747 | background-attachment: fixed; | ||
| 748 | } | ||
| 749 | |||
| 750 | .figure, | ||
| 751 | .informalfigure, | ||
| 752 | .example, | ||
| 753 | .informalexample, | ||
| 754 | .table, | ||
| 755 | .informaltable { | ||
| 756 | background-image: url("images/figure_bg.jpg"); | ||
| 757 | background-attachment: fixed; | ||
| 758 | } | ||
| 759 | |||
| 760 | */ | ||
| 761 | h1, | ||
| 762 | h2, | ||
| 763 | h3, | ||
| 764 | h4, | ||
| 765 | h5, | ||
| 766 | h6, | ||
| 767 | h7{ | ||
| 768 | } | ||
| 769 | |||
| 770 | /* | ||
| 771 | Example of how to stick an image as part of the title. | ||
| 772 | |||
| 773 | div.article .titlepage .title | ||
| 774 | { | ||
| 775 | background-image: url("figures/white-on-black.png"); | ||
| 776 | background-position: center; | ||
| 777 | background-repeat: repeat-x; | ||
| 778 | } | ||
| 779 | */ | ||
| 780 | |||
| 781 | div.preface .titlepage .title, | ||
| 782 | div.colophon .title, | ||
| 783 | div.chapter .titlepage .title, | ||
| 784 | div.article .titlepage .title | ||
| 785 | { | ||
| 786 | } | ||
| 787 | |||
| 788 | div.section div.section .titlepage .title, | ||
| 789 | div.sect2 .titlepage .title { | ||
| 790 | background: none; | ||
| 791 | } | ||
| 792 | |||
| 793 | |||
| 794 | h1.title { | ||
| 795 | background-color: transparent; | ||
| 796 | background-image: url("figures/poky-title.png"); | ||
| 797 | background-repeat: no-repeat; | ||
| 798 | height: 256px; | ||
| 799 | text-indent: -9000px; | ||
| 800 | overflow:hidden; | ||
| 801 | } | ||
| 802 | |||
| 803 | h2.subtitle { | ||
| 804 | background-color: transparent; | ||
| 805 | text-indent: -9000px; | ||
| 806 | overflow:hidden; | ||
| 807 | width: 0px; | ||
| 808 | display: none; | ||
| 809 | } | ||
| 810 | |||
| 811 | /*************************************** / | ||
| 812 | / pippin.gimp.org specific alterations / | ||
| 813 | / ***************************************/ | ||
| 814 | |||
| 815 | /* | ||
| 816 | div.heading, div.navheader { | ||
| 817 | color: #777; | ||
| 818 | font-size: 80%; | ||
| 819 | padding: 0; | ||
| 820 | margin: 0; | ||
| 821 | text-align: left; | ||
| 822 | position: absolute; | ||
| 823 | top: 0px; | ||
| 824 | left: 0px; | ||
| 825 | width: 100%; | ||
| 826 | height: 50px; | ||
| 827 | background: url('/gfx/heading_bg.png') transparent; | ||
| 828 | background-repeat: repeat-x; | ||
| 829 | background-attachment: fixed; | ||
| 830 | border: none; | ||
| 831 | } | ||
| 832 | |||
| 833 | div.heading a { | ||
| 834 | color: #444; | ||
| 835 | } | ||
| 836 | |||
| 837 | div.footing, div.navfooter { | ||
| 838 | border: none; | ||
| 839 | color: #ddd; | ||
| 840 | font-size: 80%; | ||
| 841 | text-align:right; | ||
| 842 | |||
| 843 | width: 100%; | ||
| 844 | padding-top: 10px; | ||
| 845 | position: absolute; | ||
| 846 | bottom: 0px; | ||
| 847 | left: 0px; | ||
| 848 | |||
| 849 | background: url('/gfx/footing_bg.png') transparent; | ||
| 850 | } | ||
| 851 | */ | ||
| 852 | |||
| 853 | |||
| 854 | |||
| 855 | /****************** / | ||
| 856 | / nasty ie tweaks / | ||
| 857 | / ******************/ | ||
| 858 | |||
| 859 | /* | ||
| 860 | div.heading, div.navheader { | ||
| 861 | width:expression(document.body.clientWidth + "px"); | ||
| 862 | } | ||
| 863 | |||
| 864 | div.footing, div.navfooter { | ||
| 865 | width:expression(document.body.clientWidth + "px"); | ||
| 866 | margin-left:expression("-5em"); | ||
| 867 | } | ||
| 868 | body { | ||
| 869 | padding:expression("4em 5em 0em 5em"); | ||
| 870 | } | ||
| 871 | */ | ||
| 872 | |||
| 873 | /**************************************** / | ||
| 874 | / mozilla vendor specific css extensions / | ||
| 875 | / ****************************************/ | ||
| 876 | /* | ||
| 877 | div.navfooter, div.footing{ | ||
| 878 | -moz-opacity: 0.8em; | ||
| 879 | } | ||
| 880 | |||
| 881 | div.figure, | ||
| 882 | div.table, | ||
| 883 | div.informalfigure, | ||
| 884 | div.informaltable, | ||
| 885 | div.informalexample, | ||
| 886 | div.example, | ||
| 887 | .tip, | ||
| 888 | .warning, | ||
| 889 | .caution, | ||
| 890 | .note { | ||
| 891 | -moz-border-radius: 0.5em; | ||
| 892 | } | ||
| 893 | |||
| 894 | b.keycap, | ||
| 895 | .keycap { | ||
| 896 | -moz-border-radius: 0.3em; | ||
| 897 | } | ||
| 898 | */ | ||
| 899 | |||
| 900 | table tr td table tr td { | ||
| 901 | display: none; | ||
| 902 | } | ||
| 903 | |||
| 904 | |||
| 905 | hr { | ||
| 906 | display: none; | ||
| 907 | } | ||
| 908 | |||
| 909 | table { | ||
| 910 | border: 0em; | ||
| 911 | } | ||
| 912 | |||
| 913 | .photo { | ||
| 914 | float: right; | ||
| 915 | margin-left: 1.5em; | ||
| 916 | margin-bottom: 1.5em; | ||
| 917 | margin-top: 0em; | ||
| 918 | max-width: 17em; | ||
| 919 | border: 1px solid gray; | ||
| 920 | padding: 3px; | ||
| 921 | background: white; | ||
| 922 | } | ||
| 923 | .seperator { | ||
| 924 | padding-top: 2em; | ||
| 925 | clear: both; | ||
| 926 | } | ||
| 927 | |||
| 928 | #validators { | ||
| 929 | margin-top: 5em; | ||
| 930 | text-align: right; | ||
| 931 | color: #777; | ||
| 932 | } | ||
| 933 | @media print { | ||
| 934 | body { | ||
| 935 | font-size: 8pt; | ||
| 936 | } | ||
| 937 | .noprint { | ||
| 938 | display: none; | ||
| 939 | } | ||
| 940 | } | ||
| 941 | |||
| 942 | |||
| 943 | .tip, | ||
| 944 | .note { | ||
| 945 | background: #f0f0f2; | ||
| 946 | color: #333; | ||
| 947 | padding: 20px; | ||
| 948 | margin: 20px; | ||
| 949 | } | ||
| 950 | |||
| 951 | .tip h3, | ||
| 952 | .note h3 { | ||
| 953 | padding: 0em; | ||
| 954 | margin: 0em; | ||
| 955 | font-size: 2em; | ||
| 956 | font-weight: bold; | ||
| 957 | color: #333; | ||
| 958 | } | ||
| 959 | |||
| 960 | .tip a, | ||
| 961 | .note a { | ||
| 962 | color: #333; | ||
| 963 | text-decoration: underline; | ||
| 964 | } | ||
| 965 | |||
| 966 | .footnote { | ||
| 967 | font-size: small; | ||
| 968 | color: #333; | ||
| 969 | } | ||
| 970 | |||
| 971 | /* Changes the announcement text */ | ||
| 972 | .tip h3, | ||
| 973 | .warning h3, | ||
| 974 | .caution h3, | ||
| 975 | .note h3 { | ||
| 976 | font-size:large; | ||
| 977 | color: #00557D; | ||
| 978 | } | ||
| 979 | |||
diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml new file mode 100644 index 0000000000..c490fc360d --- /dev/null +++ b/documentation/ref-manual/ref-variables.xml | |||
| @@ -0,0 +1,3018 @@ | |||
| 1 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <!-- Dummy chapter --> | ||
| 6 | <chapter id='ref-variables-glos'> | ||
| 7 | |||
| 8 | <title>Variables Glossary</title> | ||
| 9 | |||
| 10 | <para> | ||
| 11 | This chapter lists common variables used in the OpenEmbedded build system and gives an overview | ||
| 12 | of their function and contents. | ||
| 13 | </para> | ||
| 14 | |||
| 15 | <glossary id='ref-variables-glossary'> | ||
| 16 | |||
| 17 | |||
| 18 | <para> | ||
| 19 | <link linkend='var-ALLOW_EMPTY'>A</link> | ||
| 20 | <link linkend='var-B'>B</link> | ||
| 21 | <link linkend='var-CFLAGS'>C</link> | ||
| 22 | <link linkend='var-D'>D</link> | ||
| 23 | <link linkend='var-ENABLE_BINARY_LOCALE_GENERATION'>E</link> | ||
| 24 | <link linkend='var-FILES'>F</link> | ||
| 25 | <!-- <link linkend='var-glossary-g'>G</link> --> | ||
| 26 | <link linkend='var-HOMEPAGE'>H</link> | ||
| 27 | <link linkend='var-IMAGE_FEATURES'>I</link> | ||
| 28 | <!-- <link linkend='var-glossary-j'>J</link> --> | ||
| 29 | <link linkend='var-KBRANCH'>K</link> | ||
| 30 | <link linkend='var-LAYERDIR'>L</link> | ||
| 31 | <link linkend='var-MACHINE'>M</link> | ||
| 32 | <!-- <link linkend='var-glossary-n'>N</link> --> | ||
| 33 | <link linkend='var-OE_TERMINAL'>O</link> | ||
| 34 | <link linkend='var-P'>P</link> | ||
| 35 | <!-- <link linkend='var-glossary-q'>Q</link> --> | ||
| 36 | <link linkend='var-RCONFLICTS'>R</link> | ||
| 37 | <link linkend='var-S'>S</link> | ||
| 38 | <link linkend='var-T'>T</link> | ||
| 39 | <!-- <link linkend='var-glossary-u'>U</link> --> | ||
| 40 | <!-- <link linkend='var-glossary-v'>V</link> --> | ||
| 41 | <link linkend='var-WORKDIR'>W</link> | ||
| 42 | <!-- <link linkend='var-glossary-x'>X</link> --> | ||
| 43 | <!-- <link linkend='var-glossary-y'>Y</link> --> | ||
| 44 | <!-- <link linkend='var-glossary-z'>Z</link>--> | ||
| 45 | </para> | ||
| 46 | |||
| 47 | <glossdiv id='var-glossary-a'><title>A</title> | ||
| 48 | |||
| 49 | <glossentry id='var-ALLOW_EMPTY'><glossterm>ALLOW_EMPTY</glossterm> | ||
| 50 | <glossdef> | ||
| 51 | <para> | ||
| 52 | Specifies if an output package should still be produced if it is empty. | ||
| 53 | By default, BitBake does not produce empty packages. | ||
| 54 | This default behavior can cause issues when there is an | ||
| 55 | <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link> or | ||
| 56 | some other runtime hard-requirement on the existence of the package. | ||
| 57 | </para> | ||
| 58 | |||
| 59 | <para> | ||
| 60 | Like all package-controlling variables, you must always use them in | ||
| 61 | conjunction with a package name override. | ||
| 62 | Here is an example: | ||
| 63 | <literallayout class='monospaced'> | ||
| 64 | ALLOW_EMPTY_${PN} = "1" | ||
| 65 | </literallayout> | ||
| 66 | </para> | ||
| 67 | </glossdef> | ||
| 68 | </glossentry> | ||
| 69 | |||
| 70 | <glossentry id='var-AUTHOR'><glossterm>AUTHOR</glossterm> | ||
| 71 | <glossdef> | ||
| 72 | <para>The email address used to contact the original author or authors in | ||
| 73 | order to send patches, forward bugs, etc.</para> | ||
| 74 | </glossdef> | ||
| 75 | </glossentry> | ||
| 76 | |||
| 77 | <glossentry id='var-AUTOREV'><glossterm>AUTOREV</glossterm> | ||
| 78 | <glossdef> | ||
| 79 | <para>When <filename><link linkend='var-SRCREV'>SRCREV</link></filename> | ||
| 80 | is set to the value of this variable, it specifies that the latest | ||
| 81 | source revision in the repository should be used. Here is an example: | ||
| 82 | <literallayout class='monospaced'> | ||
| 83 | SRCREV = "${AUTOREV}" | ||
| 84 | </literallayout> | ||
| 85 | </para> | ||
| 86 | </glossdef> | ||
| 87 | </glossentry> | ||
| 88 | |||
| 89 | </glossdiv> | ||
| 90 | |||
| 91 | <glossdiv id='var-glossary-b'><title>B</title> | ||
| 92 | |||
| 93 | <glossentry id='var-B'><glossterm>B</glossterm> | ||
| 94 | <glossdef> | ||
| 95 | <para> | ||
| 96 | The <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>. | ||
| 97 | The OpenEmbedded build system places generated objects into the Build Directory | ||
| 98 | during a recipe's build process. | ||
| 99 | By default, this directory is the same as the <link linkend='var-S'><filename>S</filename></link> | ||
| 100 | directory: | ||
| 101 | <literallayout class='monospaced'> | ||
| 102 | B = ${WORKDIR}/${BPN}/{PV}/ | ||
| 103 | </literallayout> | ||
| 104 | You can separate the (<filename>S</filename>) directory and the directory pointed to | ||
| 105 | by the <filename>B</filename> variable. | ||
| 106 | Most autotools-based recipes support separating these directories. | ||
| 107 | The build system defaults to using separate directories for <filename>gcc</filename> | ||
| 108 | and some kernel recipes. | ||
| 109 | </para> | ||
| 110 | </glossdef> | ||
| 111 | </glossentry> | ||
| 112 | |||
| 113 | <glossentry id='var-BAD_RECOMMENDATIONS'><glossterm>BAD_RECOMMENDATIONS</glossterm> | ||
| 114 | <glossdef> | ||
| 115 | <para> | ||
| 116 | A list of packages not to install despite being recommended by a recipe. | ||
| 117 | Support for this variable exists only when using the | ||
| 118 | <filename>ipk</filename> packaging backend. | ||
| 119 | </para> | ||
| 120 | </glossdef> | ||
| 121 | </glossentry> | ||
| 122 | |||
| 123 | <glossentry id='var-BB_DISKMON_DIRS'><glossterm>BB_DISKMON_DIRS</glossterm> | ||
| 124 | <glossdef> | ||
| 125 | <para> | ||
| 126 | Monitors disk space and available inodes during the build | ||
| 127 | and allows you to control the build based on these | ||
| 128 | parameters. | ||
| 129 | </para> | ||
| 130 | |||
| 131 | <para> | ||
| 132 | Disk space monitoring is disabled by default. | ||
| 133 | To enable monitoring, add the <filename>BB_DISKMON_DIRS</filename> | ||
| 134 | variable to your <filename>conf/local.conf</filename> file found in the | ||
| 135 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>. | ||
| 136 | Use the following form: | ||
| 137 | <literallayout class='monospaced'> | ||
| 138 | BB_DISKMON_DIRS = "<action>,<dir>,<threshold> [...]" | ||
| 139 | |||
| 140 | where: | ||
| 141 | |||
| 142 | <action> is: | ||
| 143 | ABORT: Immediately abort the build when | ||
| 144 | a threshold is broken. | ||
| 145 | STOPTASKS: Stop the build after the currently | ||
| 146 | executing tasks have finished when | ||
| 147 | a threshold is broken. | ||
| 148 | WARN: Issue a warning but continue the | ||
| 149 | build when a threshold is broken. | ||
| 150 | Subsequent warnings are issued as | ||
| 151 | defined by the | ||
| 152 | <link linkend='var-BB_DISKMON_WARNINTERVAL'>BB_DISKMON_WARNINTERVAL</link> variable, | ||
| 153 | which must be defined in the | ||
| 154 | conf/local.conf file. | ||
| 155 | |||
| 156 | <dir> is: | ||
| 157 | Any directory you choose. You can specify one or | ||
| 158 | more directories to monitor by separating the | ||
| 159 | groupings with a space. If two directories are | ||
| 160 | on the same device, only the first directory | ||
| 161 | is monitored. | ||
| 162 | |||
| 163 | <threshold> is: | ||
| 164 | Either the minimum available disk space, | ||
| 165 | the minimum number of free inodes, or | ||
| 166 | both. You must specify at least one. To | ||
| 167 | omit one or the other, simply omit the value. | ||
| 168 | Specify the threshold using G, M, K for Gbytes, | ||
| 169 | Mbytes, and Kbytes, respectively. If you do | ||
| 170 | not specify G, M, or K, Kbytes is assumed by | ||
| 171 | default. Do not use GB, MB, or KB. | ||
| 172 | </literallayout> | ||
| 173 | </para> | ||
| 174 | |||
| 175 | <para> | ||
| 176 | Here are some examples: | ||
| 177 | <literallayout class='monospaced'> | ||
| 178 | BB_DISKMON_DIRS = "ABORT,${TMPDIR},1G,100K WARN,${SSTATE_DIR},1G,100K" | ||
| 179 | BB_DISKMON_DIRS = "STOPTASKS,${TMPDIR},1G" | ||
| 180 | BB_DISKMON_DIRS = "ABORT,${TMPDIR},,100K" | ||
| 181 | </literallayout> | ||
| 182 | The first example works only if you also provide | ||
| 183 | the <link linkend='var-BB_DISKMON_WARNINTERVAL'><filename>BB_DISKMON_WARNINTERVAL</filename></link> variable | ||
| 184 | in the <filename>conf/local.conf</filename>. | ||
| 185 | This example causes the build system to immediately | ||
| 186 | abort when either the disk space in <filename>${TMPDIR}</filename> drops | ||
| 187 | below 1 Gbyte or the available free inodes drops below | ||
| 188 | 100 Kbytes. | ||
| 189 | Because two directories are provided with the variable, the | ||
| 190 | build system also issue a | ||
| 191 | warning when the disk space in the | ||
| 192 | <filename>${SSTATE_DIR}</filename> directory drops | ||
| 193 | below 1 Gbyte or the number of free inodes drops | ||
| 194 | below 100 Kbytes. | ||
| 195 | Subsequent warnings are issued during intervals as | ||
| 196 | defined by the <filename>BB_DISKMON_WARNINTERVAL</filename> | ||
| 197 | variable. | ||
| 198 | </para> | ||
| 199 | |||
| 200 | <para> | ||
| 201 | The second example stops the build after all currently | ||
| 202 | executing tasks complete when the minimum disk space | ||
| 203 | in the <filename>${TMPDIR}</filename> directory drops | ||
| 204 | below 1 Gbyte. | ||
| 205 | No disk monitoring occurs for the free inodes in this case. | ||
| 206 | </para> | ||
| 207 | |||
| 208 | <para> | ||
| 209 | The final example immediately aborts the build when the | ||
| 210 | number of free inodes in the <filename>${TMPDIR}</filename> directory | ||
| 211 | drops below 100 Kbytes. | ||
| 212 | No disk space monitoring for the directory itself occurs | ||
| 213 | in this case. | ||
| 214 | </para> | ||
| 215 | </glossdef> | ||
| 216 | </glossentry> | ||
| 217 | |||
| 218 | <glossentry id='var-BB_DISKMON_WARNINTERVAL'><glossterm>BB_DISKMON_WARNINTERVAL</glossterm> | ||
| 219 | <glossdef> | ||
| 220 | <para> | ||
| 221 | Defines the disk space and free inode warning intervals. | ||
| 222 | To set these intervals, define the variable in your | ||
| 223 | <filename>conf/local.conf</filename> file in the | ||
| 224 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>. | ||
| 225 | </para> | ||
| 226 | |||
| 227 | <para> | ||
| 228 | If you are going to use the | ||
| 229 | <filename>BB_DISKMON_WARNINTERVAL</filename> variable, you must | ||
| 230 | also use the | ||
| 231 | <link linkend='var-BB_DISKMON_DIRS'><filename>BB_DISKMON_DIRS</filename></link> variable | ||
| 232 | and define its action as "WARN". | ||
| 233 | During the build, subsequent warnings are issued each time | ||
| 234 | disk space or number of free inodes further reduces by | ||
| 235 | the respective interval. | ||
| 236 | </para> | ||
| 237 | |||
| 238 | <para> | ||
| 239 | If you do not provide a <filename>BB_DISKMON_WARNINTERVAL</filename> | ||
| 240 | variable and you do use <filename>BB_DISKMON_DIRS</filename> with | ||
| 241 | the "WARN" action, the disk monitoring interval defaults to | ||
| 242 | the following: | ||
| 243 | <literallayout class='monospaced'> | ||
| 244 | BB_DISKMON_WARNINTERVAL = "50M,5K" | ||
| 245 | </literallayout> | ||
| 246 | </para> | ||
| 247 | |||
| 248 | <para> | ||
| 249 | When specifying the variable in your configuration file, | ||
| 250 | use the following form: | ||
| 251 | <literallayout class='monospaced'> | ||
| 252 | BB_DISKMON_WARNINTERVAL = "<disk_space_interval>,<disk_inode_interval>" | ||
| 253 | |||
| 254 | where: | ||
| 255 | |||
| 256 | <disk_space_interval> is: | ||
| 257 | An interval of memory expressed in either | ||
| 258 | G, M, or K for Gbytes, Mbytes, or Kbytes, | ||
| 259 | respectively. You cannot use GB, MB, or KB. | ||
| 260 | |||
| 261 | <disk_inode_interval> is: | ||
| 262 | An interval of free inodes expressed in either | ||
| 263 | G, M, or K for Gbytes, Mbytes, or Kbytes, | ||
| 264 | respectively. You cannot use GB, MB, or KB. | ||
| 265 | </literallayout> | ||
| 266 | </para> | ||
| 267 | |||
| 268 | <para> | ||
| 269 | Here is an example: | ||
| 270 | <literallayout class='monospaced'> | ||
| 271 | BB_DISKMON_DIRS = "WARN,${SSTATE_DIR},1G,100K" | ||
| 272 | BB_DISKMON_WARNINTERVAL = "50M,5K" | ||
| 273 | </literallayout> | ||
| 274 | These variables cause the OpenEmbedded build system to | ||
| 275 | issue subsequent warnings each time the available | ||
| 276 | disk space further reduces by 50 Mbytes or the number | ||
| 277 | of free inodes further reduces by 5 Kbytes in the | ||
| 278 | <filename>${SSTATE_DIR}</filename> directory. | ||
| 279 | Subsequent warnings based on the interval occur each time | ||
| 280 | a respective interval is reached beyond the intial warning | ||
| 281 | (i.e. 1 Gbytes and 100 Kbytes). | ||
| 282 | </para> | ||
| 283 | </glossdef> | ||
| 284 | </glossentry> | ||
| 285 | |||
| 286 | <glossentry id='var-BBCLASSEXTEND'><glossterm>BBCLASSEXTEND</glossterm> | ||
| 287 | <glossdef> | ||
| 288 | <para> | ||
| 289 | Allows you to extend a recipe so that it builds variants of the software. | ||
| 290 | Common variants for recipes exist such as "natives" like <filename>quilt-native</filename>, | ||
| 291 | which is a copy of quilt built to run on the build system; | ||
| 292 | "crosses" such as <filename>gcc-cross</filename>, | ||
| 293 | which is a compiler built to run on the build machine but produces binaries | ||
| 294 | that run on the target <link linkend='var-MACHINE'><filename>MACHINE</filename></link>; | ||
| 295 | "nativesdk", which targets the SDK machine instead of <filename>MACHINE</filename>; | ||
| 296 | and "mulitlibs" in the form "<filename>multilib:<multilib_name></filename>". | ||
| 297 | </para> | ||
| 298 | |||
| 299 | <para> | ||
| 300 | To build a different variant of the recipe with a minimal amount of code, it usually | ||
| 301 | is as simple as adding the following to your recipe: | ||
| 302 | <literallayout class='monospaced'> | ||
| 303 | BBCLASSEXTEND =+ "native nativesdk" | ||
| 304 | BBCLASSEXTEND =+ "multilib:<multilib_name>" | ||
| 305 | </literallayout> | ||
| 306 | </para> | ||
| 307 | </glossdef> | ||
| 308 | </glossentry> | ||
| 309 | |||
| 310 | <glossentry id='var-BBMASK'><glossterm>BBMASK</glossterm> | ||
| 311 | <glossdef> | ||
| 312 | <para>Prevents BitBake from processing recipes and recipe append files. | ||
| 313 | You can use the <filename>BBMASK</filename> variable to "hide" | ||
| 314 | these <filename>.bb</filename> and <filename>.bbappend</filename> files. | ||
| 315 | BitBake ignores any recipe or recipe append files that match the expression. | ||
| 316 | It is as if BitBake does not see them at all. | ||
| 317 | Consequently, matching files are not parsed or otherwise used by | ||
| 318 | BitBake.</para> | ||
| 319 | <para>The value you provide is passed to python's regular expression compiler. | ||
| 320 | For complete syntax information, see python's documentation at | ||
| 321 | <ulink url='http://docs.python.org/release/2.3/lib/re-syntax.html'></ulink>. | ||
| 322 | The expression is compared against the full paths to the files. | ||
| 323 | For example, the following uses a complete regular expression to tell | ||
| 324 | BitBake to ignore all recipe and recipe append files in the | ||
| 325 | <filename>.*/meta-ti/recipes-misc/</filename> directory: | ||
| 326 | <literallayout class='monospaced'> | ||
| 327 | BBMASK = ".*/meta-ti/recipes-misc/" | ||
| 328 | </literallayout></para> | ||
| 329 | <para>Use the <filename>BBMASK</filename> variable from within the | ||
| 330 | <filename>conf/local.conf</filename> file found | ||
| 331 | in the <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>.</para> | ||
| 332 | </glossdef> | ||
| 333 | </glossentry> | ||
| 334 | |||
| 335 | <glossentry id='var-BB_NUMBER_THREADS'><glossterm>BB_NUMBER_THREADS</glossterm> | ||
| 336 | <glossdef> | ||
| 337 | <para>The maximum number of tasks BitBake should run in parallel at any one time. | ||
| 338 | If your host development system supports multiple cores a good rule of thumb | ||
| 339 | is to set this variable to twice the number of cores.</para> | ||
| 340 | </glossdef> | ||
| 341 | </glossentry> | ||
| 342 | |||
| 343 | <glossentry id='var-BBFILE_COLLECTIONS'><glossterm>BBFILE_COLLECTIONS</glossterm> | ||
| 344 | <glossdef> | ||
| 345 | <para>Lists the names of configured layers. | ||
| 346 | These names are used to find the other <filename>BBFILE_*</filename> | ||
| 347 | variables. | ||
| 348 | Typically, each layer will append its name to this variable in its | ||
| 349 | <filename>conf/layer.conf</filename> file. | ||
| 350 | </para> | ||
| 351 | </glossdef> | ||
| 352 | </glossentry> | ||
| 353 | |||
| 354 | <glossentry id='var-BBFILE_PATTERN'><glossterm>BBFILE_PATTERN</glossterm> | ||
| 355 | <glossdef> | ||
| 356 | <para>Variable that expands to match files from <filename>BBFILES</filename> in a particular layer. | ||
| 357 | This variable is used in the <filename>conf/layer.conf</filename> file and must | ||
| 358 | be suffixed with the name of the specific layer (e.g. | ||
| 359 | <filename>BBFILE_PATTERN_emenlow</filename>).</para> | ||
| 360 | </glossdef> | ||
| 361 | </glossentry> | ||
| 362 | |||
| 363 | <glossentry id='var-BBFILE_PRIORITY'><glossterm>BBFILE_PRIORITY</glossterm> | ||
| 364 | <glossdef> | ||
| 365 | <para>Assigns the priority for recipe files in each layer.</para> | ||
| 366 | <para>This variable is useful in situations where the same recipe appears in | ||
| 367 | more than one layer. | ||
| 368 | Setting this variable allows you to prioritize a | ||
| 369 | layer against other layers that contain the same recipe - effectively | ||
| 370 | letting you control the precedence for the multiple layers. | ||
| 371 | The precedence established through this variable stands regardless of a | ||
| 372 | recipe's version (<filename>PV</filename> variable). | ||
| 373 | For example, a layer that has a recipe with a higher <filename>PV</filename> value but for | ||
| 374 | which the <filename>BBFILE_PRIORITY</filename> is set to have a lower precedence still has a | ||
| 375 | lower precedence.</para> | ||
| 376 | <para>A larger value for the <filename>BBFILE_PRIORITY</filename> variable results in a higher | ||
| 377 | precedence. | ||
| 378 | For example, the value 6 has a higher precedence than the value 5. | ||
| 379 | If not specified, the <filename>BBFILE_PRIORITY</filename> variable is set based on layer | ||
| 380 | dependencies (see the | ||
| 381 | <filename><link linkend='var-LAYERDEPENDS'>LAYERDEPENDS</link></filename> variable for | ||
| 382 | more information. | ||
| 383 | The default priority, if unspecified | ||
| 384 | for a layer with no dependencies, is the lowest defined priority + 1 | ||
| 385 | (or 1 if no priorities are defined).</para> | ||
| 386 | <tip> | ||
| 387 | You can use the command <filename>bitbake-layers show_layers</filename> to list | ||
| 388 | all configured layers along with their priorities. | ||
| 389 | </tip> | ||
| 390 | </glossdef> | ||
| 391 | </glossentry> | ||
| 392 | |||
| 393 | <glossentry id='var-BBFILES'><glossterm>BBFILES</glossterm> | ||
| 394 | <glossdef> | ||
| 395 | <para>List of recipe files used by BitBake to build software</para> | ||
| 396 | </glossdef> | ||
| 397 | </glossentry> | ||
| 398 | |||
| 399 | <glossentry id='var-BBPATH'><glossterm>BBPATH</glossterm> | ||
| 400 | <glossdef> | ||
| 401 | <para>Used by BitBake to locate <filename>.bbclass</filename> and configuration files. | ||
| 402 | This variable is analogous to the <filename>PATH</filename> variable.</para> | ||
| 403 | </glossdef> | ||
| 404 | </glossentry> | ||
| 405 | |||
| 406 | <glossentry id='var-BBINCLUDELOGS'><glossterm>BBINCLUDELOGS</glossterm> | ||
| 407 | <glossdef> | ||
| 408 | <para>Variable that controls how BitBake displays logs on build failure.</para> | ||
| 409 | </glossdef> | ||
| 410 | </glossentry> | ||
| 411 | |||
| 412 | <glossentry id='var-BBLAYERS'><glossterm>BBLAYERS</glossterm> | ||
| 413 | <glossdef> | ||
| 414 | <para>Lists the layers to enable during the build. | ||
| 415 | This variable is defined in the <filename>bblayers.conf</filename> configuration | ||
| 416 | file in the <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>. | ||
| 417 | Here is an example: | ||
| 418 | <literallayout class='monospaced'> | ||
| 419 | BBLAYERS = " \ | ||
| 420 | /home/scottrif/poky/meta \ | ||
| 421 | /home/scottrif/poky/meta-yocto \ | ||
| 422 | /home/scottrif/poky/meta-yocto-bsp \ | ||
| 423 | /home/scottrif/poky/meta-mykernel \ | ||
| 424 | " | ||
| 425 | |||
| 426 | BBLAYERS_NON_REMOVABLE ?= " \ | ||
| 427 | /home/scottrif/poky/meta \ | ||
| 428 | /home/scottrif/poky/meta-yocto \ | ||
| 429 | " | ||
| 430 | </literallayout> | ||
| 431 | This example enables four layers, one of which is a custom, user-defined layer | ||
| 432 | named <filename>meta-mykernel</filename>. | ||
| 433 | </para> | ||
| 434 | </glossdef> | ||
| 435 | </glossentry> | ||
| 436 | |||
| 437 | <glossentry id='var-BBLAYERS_NON_REMOVABLE'><glossterm>BBLAYERS_NON_REMOVABLE</glossterm> | ||
| 438 | <glossdef> | ||
| 439 | Core layer for images cannot be removed | ||
| 440 | <para>Lists core layers that cannot be removed from the | ||
| 441 | <filename>bblayers.conf</filename> file. | ||
| 442 | In order for BitBake to build your image, your | ||
| 443 | <filename>bblayers.conf</filename> file must include the | ||
| 444 | <filename>meta</filename> and <filename>meta-yocto</filename> | ||
| 445 | core layers. | ||
| 446 | Here is an example that shows these two layers listed in | ||
| 447 | the <filename>BBLAYERS_NON_REMOVABLE</filename> statement: | ||
| 448 | <literallayout class='monospaced'> | ||
| 449 | BBLAYERS = " \ | ||
| 450 | /home/scottrif/poky/meta \ | ||
| 451 | /home/scottrif/poky/meta-yocto \ | ||
| 452 | /home/scottrif/poky/meta-yocto-bsp \ | ||
| 453 | /home/scottrif/poky/meta-mykernel \ | ||
| 454 | " | ||
| 455 | |||
| 456 | BBLAYERS_NON_REMOVABLE ?= " \ | ||
| 457 | /home/scottrif/poky/meta \ | ||
| 458 | /home/scottrif/poky/meta-yocto \ | ||
| 459 | " | ||
| 460 | </literallayout> | ||
| 461 | </para> | ||
| 462 | </glossdef> | ||
| 463 | </glossentry> | ||
| 464 | |||
| 465 | <glossentry id='var-BP'><glossterm>BP</glossterm> | ||
| 466 | <glossdef> | ||
| 467 | <para>The base recipe name and version but without any special | ||
| 468 | recipe name suffix (i.e. <filename>-native</filename>, <filename>lib64-</filename>, | ||
| 469 | and so forth). | ||
| 470 | <filename>BP</filename> is comprised of the following: | ||
| 471 | <literallayout class="monospaced"> | ||
| 472 | ${BPN}-${PV} | ||
| 473 | </literallayout></para> | ||
| 474 | </glossdef> | ||
| 475 | </glossentry> | ||
| 476 | |||
| 477 | <glossentry id='var-BPN'><glossterm>BPN</glossterm> | ||
| 478 | <glossdef> | ||
| 479 | <para>The bare name of the recipe. | ||
| 480 | This variable is a version of the <link linkend='var-PN'><filename>PN</filename></link> variable | ||
| 481 | but removes common suffixes such as "-native" and "-cross" as well | ||
| 482 | as removes common prefixes such as multilib's "lib64-" and "lib32-". | ||
| 483 | The exact list of suffixes removed is specified by the | ||
| 484 | <link linkend='var-SPECIAL_PKGSUFFIX'><filename>SPECIAL_PKGSUFFIX</filename></link> variable. | ||
| 485 | The exact list of prefixes removed is specified by the | ||
| 486 | <link linkend='var-MLPREFIX'><filename>MLPREFIX</filename></link> variable. | ||
| 487 | Prefixes are removed for multilib and nativesdk cases.</para> | ||
| 488 | </glossdef> | ||
| 489 | </glossentry> | ||
| 490 | |||
| 491 | </glossdiv> | ||
| 492 | |||
| 493 | <glossdiv id='var-glossary-c'><title>C</title> | ||
| 494 | |||
| 495 | <glossentry id='var-CFLAGS'><glossterm>CFLAGS</glossterm> | ||
| 496 | <glossdef> | ||
| 497 | <para> | ||
| 498 | Flags passed to C compiler for the target system. | ||
| 499 | This variable evaluates to the same as | ||
| 500 | <filename><link linkend='var-TARGET_CFLAGS'>TARGET_CFLAGS</link></filename>. | ||
| 501 | </para> | ||
| 502 | </glossdef> | ||
| 503 | </glossentry> | ||
| 504 | |||
| 505 | <glossentry id='var-COMBINED_FEATURES'><glossterm>COMBINED_FEATURES</glossterm> | ||
| 506 | <glossdef> | ||
| 507 | <para>A set of features common between | ||
| 508 | <link linkend='var-MACHINE_FEATURES'><filename>MACHINE_FEATURES</filename></link> | ||
| 509 | and <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>. | ||
| 510 | See the glossary descriptions for these variables for more information.</para> | ||
| 511 | </glossdef> | ||
| 512 | </glossentry> | ||
| 513 | |||
| 514 | <glossentry id='var-COMPATIBLE_MACHINE'><glossterm>COMPATIBLE_MACHINE</glossterm> | ||
| 515 | <glossdef> | ||
| 516 | <para>A regular expression which evaluates to match the machines the recipe | ||
| 517 | works with. | ||
| 518 | It stops recipes being run on machines for which they are not compatible. | ||
| 519 | This is particularly useful with kernels. | ||
| 520 | It also helps to increase parsing speed as further parsing of the recipe is skipped | ||
| 521 | if it is found the current machine is not compatible.</para> | ||
| 522 | </glossdef> | ||
| 523 | </glossentry> | ||
| 524 | |||
| 525 | <glossentry id='var-CONFFILES'><glossterm>CONFFILES</glossterm> | ||
| 526 | <glossdef> | ||
| 527 | <para> | ||
| 528 | Identifies editable or configurable files that are part of a package. | ||
| 529 | If the Package Management System (PMS) is being used to update | ||
| 530 | packages on the target system, it is possible that | ||
| 531 | configuration files you have changed after the original installation | ||
| 532 | and that you now want to remain unchanged are overwritten. | ||
| 533 | In other words, editable files might exist in the package that you do not | ||
| 534 | want reset as part of the package update process. | ||
| 535 | You can use the <filename>CONFFILES</filename> variable to list the files in the | ||
| 536 | package that you wish to prevent the PMS from overwriting during this update process. | ||
| 537 | </para> | ||
| 538 | |||
| 539 | <para> | ||
| 540 | To use the <filename>CONFFILES</filename> variable, provide a package name | ||
| 541 | override that identifies the resulting package. | ||
| 542 | Then, provide a space-separated list of files. | ||
| 543 | Here is an example: | ||
| 544 | <literallayout class='monospaced'> | ||
| 545 | CONFFILES_${PN} += "${sysconfdir}/file1 \ | ||
| 546 | ${sysconfdir}/file2 ${sysconfdir}/file3" | ||
| 547 | </literallayout> | ||
| 548 | </para> | ||
| 549 | |||
| 550 | <para> | ||
| 551 | A relationship exists between the <filename>CONFFILES</filename> and | ||
| 552 | <filename><link linkend='var-FILES'>FILES</link></filename> variables. | ||
| 553 | The files listed within <filename>CONFFILES</filename> must be a subset of | ||
| 554 | the files listed within <filename>FILES</filename>. | ||
| 555 | Because the configuration files you provide with <filename>CONFFILES</filename> | ||
| 556 | are simply being identified so that the PMS will not overwrite them, | ||
| 557 | it makes sense that | ||
| 558 | the files must already be included as part of the package through the | ||
| 559 | <filename>FILES</filename> variable. | ||
| 560 | </para> | ||
| 561 | |||
| 562 | <note> | ||
| 563 | When specifying paths as part of the <filename>CONFFILES</filename> variable, | ||
| 564 | it is good practice to use appropriate path variables. | ||
| 565 | For example, <filename>${sysconfdir}</filename> rather than | ||
| 566 | <filename>/etc</filename> or <filename>${bindir}</filename> rather | ||
| 567 | than <filename>/usr/bin</filename>. | ||
| 568 | You can find a list of these variables at the top of the | ||
| 569 | <filename>/meta/conf/bitbake.conf</filename> file in the | ||
| 570 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 571 | </note> | ||
| 572 | </glossdef> | ||
| 573 | </glossentry> | ||
| 574 | |||
| 575 | <glossentry id='var-CONFIG_SITE'><glossterm>CONFIG_SITE</glossterm> | ||
| 576 | <glossdef> | ||
| 577 | <para> | ||
| 578 | A list of files that contains <filename>autoconf</filename> test results relevant | ||
| 579 | to the current build. | ||
| 580 | This variable is used by the Autotools utilities when running | ||
| 581 | <filename>configure</filename>. | ||
| 582 | </para> | ||
| 583 | </glossdef> | ||
| 584 | </glossentry> | ||
| 585 | |||
| 586 | <glossentry id='var-CORE_IMAGE_EXTRA_INSTALL'><glossterm>CORE_IMAGE_EXTRA_INSTALL</glossterm> | ||
| 587 | <glossdef> | ||
| 588 | <para> | ||
| 589 | Specifies the list of packages to be added to the image. | ||
| 590 | This variable should only be set in the <filename>local.conf</filename> | ||
| 591 | configuration file found in the | ||
| 592 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>. | ||
| 593 | </para> | ||
| 594 | |||
| 595 | <para> | ||
| 596 | This variable replaces <filename>POKY_EXTRA_INSTALL</filename>, which is no longer supported. | ||
| 597 | </para> | ||
| 598 | </glossdef> | ||
| 599 | </glossentry> | ||
| 600 | |||
| 601 | </glossdiv> | ||
| 602 | |||
| 603 | <glossdiv id='var-glossary-d'><title>D</title> | ||
| 604 | |||
| 605 | <glossentry id='var-D'><glossterm>D</glossterm> | ||
| 606 | <glossdef> | ||
| 607 | <para>The destination directory.</para> | ||
| 608 | </glossdef> | ||
| 609 | </glossentry> | ||
| 610 | |||
| 611 | <glossentry id='var-DEBUG_BUILD'><glossterm>DEBUG_BUILD</glossterm> | ||
| 612 | <glossdef> | ||
| 613 | <para> | ||
| 614 | Specifies to build packages with debugging information. | ||
| 615 | This influences the value of the | ||
| 616 | <filename><link linkend='var-SELECTED_OPTIMIZATION'>SELECTED_OPTIMIZATION</link></filename> | ||
| 617 | variable. | ||
| 618 | </para> | ||
| 619 | </glossdef> | ||
| 620 | </glossentry> | ||
| 621 | |||
| 622 | <glossentry id='var-DEBUG_OPTIMIZATION'><glossterm>DEBUG_OPTIMIZATION</glossterm> | ||
| 623 | <glossdef> | ||
| 624 | <para> | ||
| 625 | The options to pass in | ||
| 626 | <filename><link linkend='var-TARGET_CFLAGS'>TARGET_CFLAGS</link></filename> | ||
| 627 | and <filename><link linkend='var-CFLAGS'>CFLAGS</link></filename> when compiling | ||
| 628 | a system for debugging. | ||
| 629 | This variable defaults to "-O -fno-omit-frame-pointer -g". | ||
| 630 | </para> | ||
| 631 | </glossdef> | ||
| 632 | </glossentry> | ||
| 633 | |||
| 634 | <glossentry id='var-DEFAULT_PREFERENCE'><glossterm>DEFAULT_PREFERENCE</glossterm> | ||
| 635 | <glossdef> | ||
| 636 | <para>Specifies the priority of recipes.</para> | ||
| 637 | </glossdef> | ||
| 638 | </glossentry> | ||
| 639 | |||
| 640 | <glossentry id='var-DEPENDS'><glossterm>DEPENDS</glossterm> | ||
| 641 | <glossdef> | ||
| 642 | <para> | ||
| 643 | Lists a recipe's build-time dependencies | ||
| 644 | (i.e. other recipe files). | ||
| 645 | The system ensures that all the dependencies listed | ||
| 646 | have been built and have their contents in the appropriate | ||
| 647 | sysroots before the recipe's configure task is executed. | ||
| 648 | </para> | ||
| 649 | </glossdef> | ||
| 650 | </glossentry> | ||
| 651 | |||
| 652 | <glossentry id='var-DESCRIPTION'><glossterm>DESCRIPTION</glossterm> | ||
| 653 | <glossdef> | ||
| 654 | <para>The package description used by package managers. | ||
| 655 | If not set, <filename>DESCRIPTION</filename> takes | ||
| 656 | the value of the | ||
| 657 | <link linkend='var-SUMMARY'><filename>SUMMARY</filename></link> | ||
| 658 | variable. | ||
| 659 | </para> | ||
| 660 | </glossdef> | ||
| 661 | </glossentry> | ||
| 662 | |||
| 663 | <glossentry id='var-DESTDIR'><glossterm>DESTDIR</glossterm> | ||
| 664 | <glossdef> | ||
| 665 | <para>the destination directory.</para> | ||
| 666 | </glossdef> | ||
| 667 | </glossentry> | ||
| 668 | |||
| 669 | <glossentry id='var-DISTRO'><glossterm>DISTRO</glossterm> | ||
| 670 | <glossdef> | ||
| 671 | <para> | ||
| 672 | The short name of the distribution. | ||
| 673 | This variable corresponds to a file with the | ||
| 674 | extension <filename>.conf</filename> | ||
| 675 | located in a <filename>conf/distro</filename> directory | ||
| 676 | within the metadata that contains the distribution configuration. | ||
| 677 | The | ||
| 678 | value must not contain spaces, and is typically all lower-case. | ||
| 679 | </para> | ||
| 680 | <para> | ||
| 681 | If the variable is blank, a set of default configuration | ||
| 682 | will be used, which is specified | ||
| 683 | within <filename>meta/conf/distro/defaultsetup.conf</filename>. | ||
| 684 | </para> | ||
| 685 | </glossdef> | ||
| 686 | </glossentry> | ||
| 687 | |||
| 688 | <glossentry id='var-DISTRO_EXTRA_RDEPENDS'><glossterm>DISTRO_EXTRA_RDEPENDS</glossterm> | ||
| 689 | <glossdef> | ||
| 690 | <para> | ||
| 691 | Specifies a list of distro-specific packages to add to all images. | ||
| 692 | This variable takes affect through | ||
| 693 | <filename>packagegroup-base</filename> so the | ||
| 694 | variable only really applies to the more full-featured | ||
| 695 | images that include <filename>packagegroup-base</filename>. | ||
| 696 | You can use this variable to keep distro policy out of | ||
| 697 | generic images. | ||
| 698 | As with all other distro variables, you set this variable | ||
| 699 | in the distro <filename>.conf</filename> file. | ||
| 700 | </para> | ||
| 701 | </glossdef> | ||
| 702 | </glossentry> | ||
| 703 | |||
| 704 | <glossentry id='var-DISTRO_EXTRA_RRECOMMENDS'><glossterm>DISTRO_EXTRA_RRECOMMENDS</glossterm> | ||
| 705 | <glossdef> | ||
| 706 | <para> | ||
| 707 | Specifies a list of distro-specific packages to add to all images | ||
| 708 | if the packages exist. | ||
| 709 | The packages might not exist or be empty (e.g. kernel modules). | ||
| 710 | The list of packages are automatically installed but can be | ||
| 711 | removed by the user. | ||
| 712 | </para> | ||
| 713 | </glossdef> | ||
| 714 | </glossentry> | ||
| 715 | |||
| 716 | <glossentry id='var-DISTRO_FEATURES'><glossterm>DISTRO_FEATURES</glossterm> | ||
| 717 | <glossdef> | ||
| 718 | <para>The features enabled for the distribution. | ||
| 719 | For a list of features supported by the Yocto Project as shipped, | ||
| 720 | see the "<link linkend='ref-features-distro'>Distro</link>" | ||
| 721 | section. | ||
| 722 | </para> | ||
| 723 | </glossdef> | ||
| 724 | </glossentry> | ||
| 725 | |||
| 726 | <glossentry id='var-DISTRO_FEATURES_BACKFILL'><glossterm>DISTRO_FEATURES_BACKFILL</glossterm> | ||
| 727 | <glossdef> | ||
| 728 | <para>Features to be added to | ||
| 729 | <filename><link linkend='var-DISTRO_FEATURES'>DISTRO_FEATURES</link></filename> | ||
| 730 | if not also present in | ||
| 731 | <filename><link linkend='var-DISTRO_FEATURES_BACKFILL_CONSIDERED'>DISTRO_FEATURES_BACKFILL_CONSIDERED</link></filename>. | ||
| 732 | </para> | ||
| 733 | |||
| 734 | <para> | ||
| 735 | This variable is set in the <filename>meta/conf/bitbake.conf</filename> file. | ||
| 736 | It is not intended to be user-configurable. | ||
| 737 | It is best to just reference the variable to see which distro features are | ||
| 738 | being backfilled for all distro configurations. | ||
| 739 | See the <link linkend='ref-features-backfill'>Feature backfilling</link> section for | ||
| 740 | more information. | ||
| 741 | </para> | ||
| 742 | </glossdef> | ||
| 743 | </glossentry> | ||
| 744 | |||
| 745 | <glossentry id='var-DISTRO_FEATURES_BACKFILL_CONSIDERED'><glossterm>DISTRO_FEATURES_BACKFILL_CONSIDERED</glossterm> | ||
| 746 | <glossdef> | ||
| 747 | <para>Features from | ||
| 748 | <filename><link linkend='var-DISTRO_FEATURES_BACKFILL'>DISTRO_FEATURES_BACKFILL</link></filename> | ||
| 749 | that should not backfilled (i.e. added to | ||
| 750 | <filename><link linkend='var-DISTRO_FEATURES'>DISTRO_FEATURES</link></filename>) | ||
| 751 | during the build. | ||
| 752 | See the "<link linkend='ref-features-backfill'>Feature Backfilling</link>" section for | ||
| 753 | more information. | ||
| 754 | </para> | ||
| 755 | </glossdef> | ||
| 756 | </glossentry> | ||
| 757 | |||
| 758 | <glossentry id='var-DISTRO_NAME'><glossterm>DISTRO_NAME</glossterm> | ||
| 759 | <glossdef> | ||
| 760 | <para>The long name of the distribution.</para> | ||
| 761 | </glossdef> | ||
| 762 | </glossentry> | ||
| 763 | |||
| 764 | <glossentry id='var-DISTRO_PN_ALIAS'><glossterm>DISTRO_PN_ALIAS</glossterm> | ||
| 765 | <glossdef> | ||
| 766 | <para>Alias names used for the recipe in various Linux distributions.</para> | ||
| 767 | <para>See the | ||
| 768 | "<ulink url='&YOCTO_DOCS_DEV_URL;#usingpoky-configuring-DISTRO_PN_ALIAS'>Handling | ||
| 769 | a Package Name Alias</ulink>" section in the Yocto Project Development | ||
| 770 | Manual for more information.</para> | ||
| 771 | </glossdef> | ||
| 772 | </glossentry> | ||
| 773 | |||
| 774 | <glossentry id='var-DISTRO_VERSION'><glossterm>DISTRO_VERSION</glossterm> | ||
| 775 | <glossdef> | ||
| 776 | <para>the version of the distribution.</para> | ||
| 777 | </glossdef> | ||
| 778 | </glossentry> | ||
| 779 | |||
| 780 | <glossentry id='var-DL_DIR'><glossterm>DL_DIR</glossterm> | ||
| 781 | <glossdef> | ||
| 782 | <para> | ||
| 783 | The central download directory used by the build process to store downloads. | ||
| 784 | You can set this directory by defining the <filename>DL_DIR</filename> | ||
| 785 | variable in the <filename>/conf/local.conf</filename> file. | ||
| 786 | This directory is self-maintaining and you should not have | ||
| 787 | to touch it. | ||
| 788 | By default, the directory is <filename>downloads</filename> in the | ||
| 789 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>. | ||
| 790 | <literallayout class='monospaced'> | ||
| 791 | #DL_DIR ?= "${TOPDIR}/downloads" | ||
| 792 | </literallayout> | ||
| 793 | To specify a different download directory, simply uncomment the line | ||
| 794 | and provide your directory. | ||
| 795 | </para> | ||
| 796 | |||
| 797 | <para> | ||
| 798 | During a first build, the system downloads many different source code | ||
| 799 | tarballs from various upstream projects. | ||
| 800 | Downloading can take a while, particularly if your network | ||
| 801 | connection is slow. | ||
| 802 | Tarballs are all stored in the directory defined by | ||
| 803 | <filename>DL_DIR</filename> and the build system looks there first | ||
| 804 | to find source tarballs. | ||
| 805 | <note> | ||
| 806 | When wiping and rebuilding, you can preserve this directory to speed | ||
| 807 | up this part of subsequent builds. | ||
| 808 | </note> | ||
| 809 | </para> | ||
| 810 | |||
| 811 | <para> | ||
| 812 | You can safely share this directory between multiple builds on the | ||
| 813 | same development machine. | ||
| 814 | For additional information on how the build process gets source files | ||
| 815 | when working behind a firewall or proxy server, see the | ||
| 816 | "<link linkend='how-does-the-yocto-project-obtain-source-code-and-will-it-work-behind-my-firewall-or-proxy-server'>FAQ</link>" | ||
| 817 | chapter. | ||
| 818 | </para> | ||
| 819 | </glossdef> | ||
| 820 | |||
| 821 | </glossentry> | ||
| 822 | </glossdiv> | ||
| 823 | |||
| 824 | <glossdiv id='var-glossary-e'><title>E</title> | ||
| 825 | |||
| 826 | <glossentry id='var-ENABLE_BINARY_LOCALE_GENERATION'><glossterm>ENABLE_BINARY_LOCALE_GENERATION</glossterm> | ||
| 827 | <glossdef> | ||
| 828 | <para></para> | ||
| 829 | <para>Variable that controls which locales for <filename>eglibc</filename> are | ||
| 830 | to be generated during the build (useful if the target device has 64Mbytes | ||
| 831 | of RAM or less).</para> | ||
| 832 | </glossdef> | ||
| 833 | </glossentry> | ||
| 834 | |||
| 835 | <glossentry id='var-EXTENDPE'><glossterm>EXTENDPE</glossterm> | ||
| 836 | <glossdef> | ||
| 837 | <para> | ||
| 838 | Used with file and pathnames to create a prefix for a recipe's | ||
| 839 | version based on the recipe's | ||
| 840 | <link linkend='var-PE'><filename>PE</filename></link> value. | ||
| 841 | If <filename>PE</filename> is set and greater than zero for a recipe, | ||
| 842 | <filename>EXTENDPE</filename> becomes that value (e.g if | ||
| 843 | <filename>PE</filename> is equal to "1" then <filename>EXTENDPE</filename> | ||
| 844 | becomes "1_"). | ||
| 845 | If a recipe's <filename>PE</filename> is not set (the default) or is equal to | ||
| 846 | zero, <filename>EXTENDPE</filename> becomes "".</para> | ||
| 847 | <para>See the <link linkend='var-STAMP'><filename>STAMP</filename></link> | ||
| 848 | variable for an example. | ||
| 849 | </para> | ||
| 850 | </glossdef> | ||
| 851 | </glossentry> | ||
| 852 | |||
| 853 | <glossentry id='var-EXTRA_IMAGE_FEATURES'><glossterm>EXTRA_IMAGE_FEATURES</glossterm> | ||
| 854 | <glossdef> | ||
| 855 | <para>Allows extra packages to be added to the generated images. | ||
| 856 | You set this variable in the <filename>local.conf</filename> | ||
| 857 | configuration file. | ||
| 858 | Note that some image features are also added using the | ||
| 859 | <filename><link linkend='var-IMAGE_FEATURES'>IMAGE_FEATURES</link></filename> | ||
| 860 | variable generally configured in image recipes. | ||
| 861 | You can use this variable to add more features in addition to those. | ||
| 862 | Here are some examples of features you can add:</para> | ||
| 863 | <literallayout class='monospaced'> | ||
| 864 | "dbg-pkgs" - Adds -dbg packages for all installed packages | ||
| 865 | including symbol information for debugging and | ||
| 866 | profiling. | ||
| 867 | |||
| 868 | "dev-pkgs" - Adds -dev packages for all installed packages. | ||
| 869 | This is useful if you want to develop against | ||
| 870 | the libraries in the image. | ||
| 871 | |||
| 872 | "tools-sdk" - Adds development tools such as gcc, make, | ||
| 873 | pkgconfig and so forth. | ||
| 874 | |||
| 875 | "tools-debug" - Adds debugging tools such as gdb and | ||
| 876 | strace. | ||
| 877 | |||
| 878 | "tools-profile" - Adds profiling tools such as oprofile, | ||
| 879 | exmap, lttng and valgrind (x86 only). | ||
| 880 | |||
| 881 | "tools-testapps" - Adds useful testing tools such as | ||
| 882 | ts_print, aplay, arecord and so | ||
| 883 | forth. | ||
| 884 | |||
| 885 | "debug-tweaks" - Makes an image suitable for development. | ||
| 886 | For example, ssh root access has a blank | ||
| 887 | password. You should remove this feature | ||
| 888 | before you produce a production image. | ||
| 889 | </literallayout> | ||
| 890 | |||
| 891 | <para>There are other valid features too, see the | ||
| 892 | <link linkend='ref-features-image'>Images</link> | ||
| 893 | section for more details.</para> | ||
| 894 | </glossdef> | ||
| 895 | </glossentry> | ||
| 896 | |||
| 897 | <glossentry id='var-EXTRA_IMAGEDEPENDS'><glossterm>EXTRA_IMAGEDEPENDS</glossterm> | ||
| 898 | <glossdef> | ||
| 899 | <para>A list of recipes to be built that do not provide packages to be installed in | ||
| 900 | the root filesystem. | ||
| 901 | </para> | ||
| 902 | <para>Sometimes a recipe is required to build the final image but is not | ||
| 903 | needed in the root filesystem. | ||
| 904 | You can use the <filename>EXTRA_IMAGEDEPENDS</filename> variable to | ||
| 905 | list these recipes and thus, specify the dependencies. | ||
| 906 | A typical example is a required bootloader in a machine configuration. | ||
| 907 | </para> | ||
| 908 | <note> | ||
| 909 | To add packages to the root filesystem, see the various | ||
| 910 | <filename>*DEPENDS</filename> and <filename>*RECOMMENDS</filename> | ||
| 911 | variables. | ||
| 912 | </note> | ||
| 913 | </glossdef> | ||
| 914 | </glossentry> | ||
| 915 | |||
| 916 | <glossentry id='var-EXTRA_OECMAKE'><glossterm>EXTRA_OECMAKE</glossterm> | ||
| 917 | <glossdef> | ||
| 918 | <para>Additional <filename>cmake</filename> options.</para> | ||
| 919 | </glossdef> | ||
| 920 | </glossentry> | ||
| 921 | |||
| 922 | <glossentry id='var-EXTRA_OECONF'><glossterm>EXTRA_OECONF</glossterm> | ||
| 923 | <glossdef> | ||
| 924 | <para>Additional <filename>configure</filename> script options.</para> | ||
| 925 | </glossdef> | ||
| 926 | </glossentry> | ||
| 927 | |||
| 928 | <glossentry id='var-EXTRA_OEMAKE'><glossterm>EXTRA_OEMAKE</glossterm> | ||
| 929 | <glossdef> | ||
| 930 | <para>Additional GNU <filename>make</filename> options.</para> | ||
| 931 | </glossdef> | ||
| 932 | </glossentry> | ||
| 933 | |||
| 934 | </glossdiv> | ||
| 935 | |||
| 936 | <glossdiv id='var-glossary-f'><title>F</title> | ||
| 937 | |||
| 938 | <glossentry id='var-FILES'><glossterm>FILES</glossterm> | ||
| 939 | <glossdef> | ||
| 940 | <para> | ||
| 941 | The list of directories or files that are placed in packages. | ||
| 942 | </para> | ||
| 943 | |||
| 944 | <para> | ||
| 945 | To use the <filename>FILES</filename> variable, provide a package name | ||
| 946 | override that identifies the resulting package. | ||
| 947 | Then, provide a space-separated list of files or paths that identifies the | ||
| 948 | files you want included as part of the resulting package. | ||
| 949 | Here is an example: | ||
| 950 | <literallayout class='monospaced'> | ||
| 951 | FILES_${PN} += "${bindir}/mydir1/ ${bindir}/mydir2/myfile" | ||
| 952 | </literallayout> | ||
| 953 | </para> | ||
| 954 | |||
| 955 | <note> | ||
| 956 | When specifying paths as part of the <filename>FILES</filename> variable, | ||
| 957 | it is good practice to use appropriate path variables. | ||
| 958 | For example, <filename>${sysconfdir}</filename> rather than | ||
| 959 | <filename>/etc</filename> or <filename>${bindir}</filename> rather | ||
| 960 | than <filename>/usr/bin</filename>. | ||
| 961 | You can find a list of these variables at the top of the | ||
| 962 | <filename>/meta/conf/bitbake.conf</filename> file in the | ||
| 963 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 964 | </note> | ||
| 965 | |||
| 966 | <para> | ||
| 967 | If some of the files you provide with the <filename>FILES</filename> variable | ||
| 968 | are editable and you know they should not be | ||
| 969 | overwritten during the package update process by the Package Management | ||
| 970 | System (PMS), you can identify these files so that the PMS will not | ||
| 971 | overwrite them. | ||
| 972 | See the <filename><link linkend='var-CONFFILES'>CONFFILES</link></filename> | ||
| 973 | variable for information on how to identify these files to the PMS. | ||
| 974 | </para> | ||
| 975 | |||
| 976 | </glossdef> | ||
| 977 | </glossentry> | ||
| 978 | |||
| 979 | <glossentry id='var-FILESEXTRAPATHS'><glossterm>FILESEXTRAPATHS</glossterm> | ||
| 980 | <glossdef> | ||
| 981 | <para> | ||
| 982 | Extends the search path the OpenEmbedded build system uses when | ||
| 983 | looking for files and patches as it processes recipes. | ||
| 984 | The directories BitBake uses when it processes recipes is defined by the | ||
| 985 | <link linkend='var-FILESPATH'><filename>FILESPATH</filename></link> variable. | ||
| 986 | You can add directories to the search path by defining the | ||
| 987 | <filename>FILESEXTRAPATHS</filename> variable. | ||
| 988 | </para> | ||
| 989 | |||
| 990 | <para> | ||
| 991 | To add paths to the search order, provide a list of directories and separate | ||
| 992 | each path using a colon character as follows: | ||
| 993 | <literallayout class='monospaced'> | ||
| 994 | FILESEXTRAPATHS_prepend := "path_1:path_2:path_3:" | ||
| 995 | </literallayout> | ||
| 996 | Typically, you want your directories searched first. | ||
| 997 | To make sure that happens, use <filename>_prepend</filename> and | ||
| 998 | the immediate expansion (<filename>:=</filename>) operator as shown in the | ||
| 999 | previous example. | ||
| 1000 | Finally, to maintain the integrity of the <filename>FILESPATH</filename> variable, | ||
| 1001 | you must include the appropriate beginning or ending (as needed) colon character. | ||
| 1002 | </para> | ||
| 1003 | |||
| 1004 | <para> | ||
| 1005 | The <filename>FILESEXTRAPATHS</filename> variable is intended for use in | ||
| 1006 | <filename>.bbappend</filename> files to include any additional files provided in that layer. | ||
| 1007 | You typically accomplish this with the following: | ||
| 1008 | <literallayout class='monospaced'> | ||
| 1009 | FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:" | ||
| 1010 | </literallayout> | ||
| 1011 | </para> | ||
| 1012 | </glossdef> | ||
| 1013 | </glossentry> | ||
| 1014 | |||
| 1015 | <glossentry id='var-FILESPATH'><glossterm>FILESPATH</glossterm> | ||
| 1016 | <glossdef> | ||
| 1017 | <para> | ||
| 1018 | The default set of directories the OpenEmbedded build system uses | ||
| 1019 | when searching for patches and files. | ||
| 1020 | During the build process, BitBake searches each directory in | ||
| 1021 | <filename>FILESPATH</filename> in the specified order when looking for | ||
| 1022 | files and patches specified by each <filename>file://</filename> URI in a recipe. | ||
| 1023 | </para> | ||
| 1024 | |||
| 1025 | <para> | ||
| 1026 | The default value for the <filename>FILESPATH</filename> variable is defined | ||
| 1027 | in the <filename>base.bbclass</filename> class found in | ||
| 1028 | <filename>meta/classes</filename> in the | ||
| 1029 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>: | ||
| 1030 | <literallayout class='monospaced'> | ||
| 1031 | FILESPATH = "${@base_set_filespath([ "${FILE_DIRNAME}/${PF}", \ | ||
| 1032 | "${FILE_DIRNAME}/${P}", "${FILE_DIRNAME}/${PN}", \ | ||
| 1033 | "${FILE_DIRNAME}/${BP}", "${FILE_DIRNAME}/${BPN}", \ | ||
| 1034 | "${FILE_DIRNAME}/files", "${FILE_DIRNAME}" ], d)}" | ||
| 1035 | </literallayout> | ||
| 1036 | Do not hand-edit the <filename>FILESPATH</filename> variable. | ||
| 1037 | If you want to extend the set of pathnames that BitBake uses when searching for | ||
| 1038 | files and patches, use the | ||
| 1039 | <link linkend='var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></link> variable. | ||
| 1040 | </para> | ||
| 1041 | </glossdef> | ||
| 1042 | </glossentry> | ||
| 1043 | |||
| 1044 | <glossentry id='var-FILESYSTEM_PERMS_TABLES'><glossterm>FILESYSTEM_PERMS_TABLES</glossterm> | ||
| 1045 | <glossdef> | ||
| 1046 | <para>Allows you to define your own file permissions settings table as part of | ||
| 1047 | your configuration for the packaging process. | ||
| 1048 | For example, suppose you need a consistent set of custom permissions for | ||
| 1049 | a set of groups and users across an entire work project. | ||
| 1050 | It is best to do this in the packages themselves but this is not always | ||
| 1051 | possible. | ||
| 1052 | </para> | ||
| 1053 | <para> | ||
| 1054 | By default, the OpenEmbedded build system uses the <filename>fs-perms.txt</filename>, which | ||
| 1055 | is located in the <filename>meta/files</filename> folder in the | ||
| 1056 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 1057 | If you create your own file permissions setting table, you should place it in your | ||
| 1058 | layer or the distros layer. | ||
| 1059 | </para> | ||
| 1060 | <para> | ||
| 1061 | You define the <filename>FILESYSTEM_PERMS_TABLES</filename> variable in the | ||
| 1062 | <filename>conf/local.conf</filename> file, which is found in the | ||
| 1063 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>, to | ||
| 1064 | point to your custom <filename>fs-perms.txt</filename>. | ||
| 1065 | You can specify more than a single file permissions setting table. | ||
| 1066 | The paths you specify to these files must be defined within the | ||
| 1067 | <filename>BBPATH</filename> variable. | ||
| 1068 | </para> | ||
| 1069 | <para> | ||
| 1070 | For guidance on how to create your own file permissions settings table file, | ||
| 1071 | examine the existing <filename>fs-perms.txt</filename>. | ||
| 1072 | </para> | ||
| 1073 | </glossdef> | ||
| 1074 | </glossentry> | ||
| 1075 | |||
| 1076 | <glossentry id='var-FULL_OPTIMIZATION'><glossterm>FULL_OPTIMIZATION</glossterm> | ||
| 1077 | <glossdef> | ||
| 1078 | <para> | ||
| 1079 | The options to pass in | ||
| 1080 | <filename><link linkend='var-TARGET_CFLAGS'>TARGET_CFLAGS</link></filename> | ||
| 1081 | and <filename><link linkend='var-CFLAGS'>CFLAGS</link></filename> | ||
| 1082 | when compiling an optimized system. | ||
| 1083 | This variable defaults to | ||
| 1084 | "-fexpensive-optimizations -fomit-frame-pointer -frename-registers -O2". | ||
| 1085 | </para> | ||
| 1086 | </glossdef> | ||
| 1087 | </glossentry> | ||
| 1088 | |||
| 1089 | </glossdiv> | ||
| 1090 | |||
| 1091 | <!-- <glossdiv id='var-glossary-g'><title>G</title>--> | ||
| 1092 | <!-- </glossdiv>--> | ||
| 1093 | |||
| 1094 | <glossdiv id='var-glossary-h'><title>H</title> | ||
| 1095 | |||
| 1096 | <glossentry id='var-HOMEPAGE'><glossterm>HOMEPAGE</glossterm> | ||
| 1097 | <glossdef> | ||
| 1098 | <para>Website where more information about the software the recipe is building | ||
| 1099 | can be found.</para> | ||
| 1100 | </glossdef> | ||
| 1101 | </glossentry> | ||
| 1102 | |||
| 1103 | </glossdiv> | ||
| 1104 | |||
| 1105 | <glossdiv id='var-glossary-i'><title>I</title> | ||
| 1106 | |||
| 1107 | <glossentry id='var-IMAGE_FEATURES'><glossterm>IMAGE_FEATURES</glossterm> | ||
| 1108 | <glossdef> | ||
| 1109 | <para>The list of features to include in an image. | ||
| 1110 | Typically, you configure this variable in an image recipe. | ||
| 1111 | Note that you can also add extra features to the image by using the | ||
| 1112 | <filename><link linkend='var-EXTRA_IMAGE_FEATURES'>EXTRA_IMAGE_FEATURES</link></filename> variable. | ||
| 1113 | See the "<link linkend="ref-features-image">Images</link>" section for the | ||
| 1114 | full list of features that can be included in images built by the | ||
| 1115 | OpenEmbedded build system.</para> | ||
| 1116 | </glossdef> | ||
| 1117 | </glossentry> | ||
| 1118 | |||
| 1119 | <glossentry id='var-IMAGE_FSTYPES'><glossterm>IMAGE_FSTYPES</glossterm> | ||
| 1120 | <glossdef> | ||
| 1121 | <para>Formats of root filesystem images that you want to have created.</para> | ||
| 1122 | </glossdef> | ||
| 1123 | </glossentry> | ||
| 1124 | |||
| 1125 | <glossentry id='var-IMAGE_INSTALL'><glossterm>IMAGE_INSTALL</glossterm> | ||
| 1126 | <glossdef> | ||
| 1127 | <para> | ||
| 1128 | Specifies the packages to install into an image. | ||
| 1129 | The <filename>IMAGE_INSTALL</filename> variable is a mechanism for an image | ||
| 1130 | recipe and you should use it with care to avoid ordering issues. | ||
| 1131 | </para> | ||
| 1132 | |||
| 1133 | <para> | ||
| 1134 | Image recipes set <filename>IMAGE_INSTALL</filename> to specify the | ||
| 1135 | packages to install into an image through <filename>image.bbclass</filename>. | ||
| 1136 | Additionally, "helper" classes exist, such as <filename>core-image.bbclass</filename>, | ||
| 1137 | that can take | ||
| 1138 | <filename><link linkend='var-IMAGE_FEATURES'>IMAGE_FEATURES</link></filename> lists | ||
| 1139 | and turn these into auto-generated entries in | ||
| 1140 | <filename>IMAGE_INSTALL</filename> in addition to its default contents. | ||
| 1141 | </para> | ||
| 1142 | |||
| 1143 | <para> | ||
| 1144 | Using <filename>IMAGE_INSTALL</filename> with the <filename>+=</filename> | ||
| 1145 | operator from the <filename>/conf/local.conf</filename> file or from within | ||
| 1146 | an image recipe is not recommended as it can cause ordering issues. | ||
| 1147 | Since <filename>core-image.bbclass</filename> sets <filename>IMAGE_INSTALL</filename> | ||
| 1148 | to a default value using the <filename>?=</filename> operator, using a | ||
| 1149 | <filename>+=</filename> operation against <filename>IMAGE_INSTALL</filename> | ||
| 1150 | will result in unexpected behavior when used in | ||
| 1151 | <filename>/conf/local.conf</filename>. | ||
| 1152 | Furthermore, the same operation from with an image recipe may or may not | ||
| 1153 | succeed depending on the specific situation. | ||
| 1154 | In both these cases, the behavior is contrary to how most users expect | ||
| 1155 | the <filename>+=</filename> operator to work. | ||
| 1156 | </para> | ||
| 1157 | |||
| 1158 | <para> | ||
| 1159 | When you use this variable, it is best to use it as follows: | ||
| 1160 | <literallayout class='monospaced'> | ||
| 1161 | IMAGE_INSTALL_append = " package-name" | ||
| 1162 | </literallayout> | ||
| 1163 | Be sure to include the space between the quotation character and the start of the | ||
| 1164 | package name. | ||
| 1165 | </para> | ||
| 1166 | </glossdef> | ||
| 1167 | </glossentry> | ||
| 1168 | |||
| 1169 | <glossentry id='var-IMAGE_OVERHEAD_FACTOR'><glossterm>IMAGE_OVERHEAD_FACTOR</glossterm> | ||
| 1170 | <glossdef> | ||
| 1171 | <para> | ||
| 1172 | Defines a multiplier that the build system applies to the initial image | ||
| 1173 | size for cases when the multiplier times the returned disk usage value | ||
| 1174 | for the image is greater than the sum of | ||
| 1175 | <filename><link linkend='var-IMAGE_ROOTFS_SIZE'>IMAGE_ROOTFS_SIZE</link></filename> | ||
| 1176 | and | ||
| 1177 | <filename><link linkend='var-IMAGE_ROOTFS_EXTRA_SPACE'>IMAGE_ROOTFS_EXTRA_SPACE</link></filename>. | ||
| 1178 | The result of the multiplier applied to the initial image size creates | ||
| 1179 | free disk space in the image as overhead. | ||
| 1180 | By default, the build process uses a multiplier of 1.3 for this variable. | ||
| 1181 | This default value results in 30% free disk space added to the image when this | ||
| 1182 | method is used to determine the final generated image size. | ||
| 1183 | You should be aware that post install scripts and the package management | ||
| 1184 | system uses disk space inside this overhead area. | ||
| 1185 | Consequently, the multiplier does not produce an image with | ||
| 1186 | all the theoretical free disk space. | ||
| 1187 | See <filename><link linkend='var-IMAGE_ROOTFS_SIZE'>IMAGE_ROOTFS_SIZE</link></filename> | ||
| 1188 | for information on how the build system determines the overall image size. | ||
| 1189 | </para> | ||
| 1190 | |||
| 1191 | <para> | ||
| 1192 | The default 30% free disk space typically gives the image enough room to boot | ||
| 1193 | and allows for basic post installs while still leaving a small amount of | ||
| 1194 | free disk space. | ||
| 1195 | If 30% free space is inadequate, you can increase the default value. | ||
| 1196 | For example, the following setting gives you 50% free space added to the image: | ||
| 1197 | <literallayout class='monospaced'> | ||
| 1198 | IMAGE_OVERHEAD_FACTOR = "1.5" | ||
| 1199 | </literallayout> | ||
| 1200 | </para> | ||
| 1201 | |||
| 1202 | <para> | ||
| 1203 | Alternatively, you can ensure a specific amount of free disk space is added | ||
| 1204 | to the image by using | ||
| 1205 | <filename><link linkend='var-IMAGE_ROOTFS_EXTRA_SPACE'>IMAGE_ROOTFS_EXTRA_SPACE</link></filename> | ||
| 1206 | the variable. | ||
| 1207 | </para> | ||
| 1208 | </glossdef> | ||
| 1209 | </glossentry> | ||
| 1210 | |||
| 1211 | <glossentry id='var-IMAGE_ROOTFS_EXTRA_SPACE'><glossterm>IMAGE_ROOTFS_EXTRA_SPACE</glossterm> | ||
| 1212 | <glossdef> | ||
| 1213 | <para> | ||
| 1214 | Defines additional free disk space created in the image in Kbytes. | ||
| 1215 | By default, this variable is set to "0". | ||
| 1216 | This free disk space is added to the image after the build system determines | ||
| 1217 | the image size as described in | ||
| 1218 | <filename><link linkend='var-IMAGE_ROOTFS_SIZE'>IMAGE_ROOTFS_SIZE</link></filename>. | ||
| 1219 | </para> | ||
| 1220 | |||
| 1221 | <para> | ||
| 1222 | This variable is particularly useful when you want to ensure that a | ||
| 1223 | specific amount of free disk space is available on a device after an image | ||
| 1224 | is installed and running. | ||
| 1225 | For example, to be sure 5 Gbytes of free disk space is available, set the | ||
| 1226 | variable as follows: | ||
| 1227 | <literallayout class='monospaced'> | ||
| 1228 | IMAGE_ROOTFS_EXTRA_SPACE = "5242880" | ||
| 1229 | </literallayout> | ||
| 1230 | </para> | ||
| 1231 | </glossdef> | ||
| 1232 | </glossentry> | ||
| 1233 | |||
| 1234 | <glossentry id='var-IMAGE_ROOTFS_SIZE'><glossterm>IMAGE_ROOTFS_SIZE</glossterm> | ||
| 1235 | <glossdef> | ||
| 1236 | <para> | ||
| 1237 | Defines the size in Kbytes for the generated image. | ||
| 1238 | The OpenEmbedded build system determines the final size for the generated | ||
| 1239 | image using an algorithm that takes into account the initial disk space used | ||
| 1240 | for the generated image, a requested size for the image, and requested | ||
| 1241 | additional free disk space to be added to the image. | ||
| 1242 | Programatically, the build system determines the final size of the | ||
| 1243 | generated image as follows: | ||
| 1244 | <literallayout class='monospaced'> | ||
| 1245 | if (image-du * overhead) < rootfs-size: | ||
| 1246 | internal-rootfs-size = rootfs-size + xspace | ||
| 1247 | else: | ||
| 1248 | internal-rootfs-size = (image-du * overhead) + xspace | ||
| 1249 | |||
| 1250 | where: | ||
| 1251 | |||
| 1252 | image-du = Returned value of the du command on | ||
| 1253 | the image. | ||
| 1254 | |||
| 1255 | overhead = IMAGE_OVERHEAD_FACTOR | ||
| 1256 | |||
| 1257 | rootfs-size = IMAGE_ROOTFS_SIZE | ||
| 1258 | |||
| 1259 | internal-rootfs-size = Initial root filesystem | ||
| 1260 | size before any modifications. | ||
| 1261 | |||
| 1262 | xspace = IMAGE_ROOTFS_EXTRA_SPACE | ||
| 1263 | </literallayout> | ||
| 1264 | <!-- In the above example, <filename>overhead</filename> is defined by the | ||
| 1265 | <filename><link linkend='var-IMAGE_OVERHEAD_FACTOR'>IMAGE_OVERHEAD_FACTOR</link></filename> | ||
| 1266 | variable, <filename>xspace</filename> is defined by the | ||
| 1267 | <filename><link linkend='var-IMAGE_ROOTFS_EXTRA_SPACE'>IMAGE_ROOTFS_EXTRA_SPACE</link></filename> | ||
| 1268 | variable, and <filename>du</filename> is the results of the disk usage command | ||
| 1269 | on the initially generated image. --> | ||
| 1270 | </para> | ||
| 1271 | </glossdef> | ||
| 1272 | </glossentry> | ||
| 1273 | |||
| 1274 | <glossentry id='var-INC_PR'><glossterm>INC_PR</glossterm> | ||
| 1275 | <glossdef> | ||
| 1276 | <para>Helps define the recipe revision for recipes that share | ||
| 1277 | a common <filename>include</filename> file. | ||
| 1278 | You can think of this variable as part of the recipe revision | ||
| 1279 | as set from within an include file.</para> | ||
| 1280 | <para>Suppose, for example, you have a set of recipes that | ||
| 1281 | are used across several projects. | ||
| 1282 | And, within each of those recipes the revision | ||
| 1283 | (its <filename>PR</filename> value) is set accordingly. | ||
| 1284 | In this case, when the revision of those recipes changes | ||
| 1285 | the burden is on you to find all those recipes and | ||
| 1286 | be sure that they get changed to reflect the updated | ||
| 1287 | version of the recipe. | ||
| 1288 | In this scenario, it can get complicated when recipes | ||
| 1289 | used in many places and that provide common functionality | ||
| 1290 | are upgraded to a new revision.</para> | ||
| 1291 | <para>A more efficient way of dealing with this situation is | ||
| 1292 | to set the <filename>INC_PR</filename> variable inside | ||
| 1293 | the <filename>include</filename> files that the recipes | ||
| 1294 | share and then expand the <filename>INC_PR</filename> | ||
| 1295 | variable within the recipes to help | ||
| 1296 | define the recipe revision. | ||
| 1297 | </para> | ||
| 1298 | <para> | ||
| 1299 | The following provides an example that shows how to use | ||
| 1300 | the <filename>INC_PR</filename> variable | ||
| 1301 | given a common <filename>include</filename> file that | ||
| 1302 | defines the variable. | ||
| 1303 | Once the variable is defined in the | ||
| 1304 | <filename>include</filename> file, you can use the | ||
| 1305 | variable to set the <filename>PR</filename> values in | ||
| 1306 | each recipe. | ||
| 1307 | You will notice that when you set a recipe's | ||
| 1308 | <filename>PR</filename> you can provide more granular | ||
| 1309 | revisioning by appending values to the | ||
| 1310 | <filename>INC_PR</filename> variable: | ||
| 1311 | <literallayout class='monospaced'> | ||
| 1312 | recipes-graphics/xorg-font/xorg-font-common.inc:INC_PR = "r2" | ||
| 1313 | recipes-graphics/xorg-font/encodings_1.0.4.bb:PR = "${INC_PR}.1" | ||
| 1314 | recipes-graphics/xorg-font/font-util_1.3.0.bb:PR = "${INC_PR}.0" | ||
| 1315 | recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3" | ||
| 1316 | </literallayout> | ||
| 1317 | The first line of the example establishes the baseline | ||
| 1318 | revision to be used for all recipes that use the | ||
| 1319 | <filename>include</filename> file. | ||
| 1320 | The remaining lines in the example are from individual | ||
| 1321 | recipes and show how the <filename>PR</filename> value | ||
| 1322 | is set.</para> | ||
| 1323 | </glossdef> | ||
| 1324 | </glossentry> | ||
| 1325 | |||
| 1326 | <glossentry id='var-INHIBIT_PACKAGE_STRIP'><glossterm>INHIBIT_PACKAGE_STRIP</glossterm> | ||
| 1327 | <glossdef> | ||
| 1328 | <para> | ||
| 1329 | Causes the build to not strip binaries in resulting packages. | ||
| 1330 | </para> | ||
| 1331 | </glossdef> | ||
| 1332 | </glossentry> | ||
| 1333 | |||
| 1334 | |||
| 1335 | <glossentry id='var-INHERIT'><glossterm>INHERIT</glossterm> | ||
| 1336 | <glossdef> | ||
| 1337 | <para> | ||
| 1338 | Causes the named class to be inherited at | ||
| 1339 | this point during parsing. | ||
| 1340 | The variable is only valid in configuration files. | ||
| 1341 | </para> | ||
| 1342 | </glossdef> | ||
| 1343 | </glossentry> | ||
| 1344 | |||
| 1345 | |||
| 1346 | <glossentry id='var-INITSCRIPT_PACKAGES'><glossterm>INITSCRIPT_PACKAGES</glossterm> | ||
| 1347 | <glossdef> | ||
| 1348 | <para> | ||
| 1349 | A list of the packages that contain initscripts. | ||
| 1350 | If multiple packages are specified, you need to append the package name | ||
| 1351 | to the other <filename>INITSCRIPT_*</filename> as an override.</para> | ||
| 1352 | <para> | ||
| 1353 | This variable is used in recipes when using <filename>update-rc.d.bbclass</filename>. | ||
| 1354 | The variable is optional and defaults to the <filename>PN</filename> variable. | ||
| 1355 | </para> | ||
| 1356 | </glossdef> | ||
| 1357 | </glossentry> | ||
| 1358 | |||
| 1359 | <glossentry id='var-INITSCRIPT_NAME'><glossterm>INITSCRIPT_NAME</glossterm> | ||
| 1360 | <glossdef> | ||
| 1361 | <para> | ||
| 1362 | The filename of the initscript (as installed to <filename>${etcdir}/init.d)</filename>. | ||
| 1363 | </para> | ||
| 1364 | <para> | ||
| 1365 | This variable is used in recipes when using <filename>update-rc.d.bbclass</filename>. | ||
| 1366 | The variable is Mandatory. | ||
| 1367 | </para> | ||
| 1368 | </glossdef> | ||
| 1369 | </glossentry> | ||
| 1370 | |||
| 1371 | <glossentry id='var-INITSCRIPT_PARAMS'><glossterm>INITSCRIPT_PARAMS</glossterm> | ||
| 1372 | <glossdef> | ||
| 1373 | <para> | ||
| 1374 | Specifies the options to pass to <filename>update-rc.d</filename>. | ||
| 1375 | An example is <filename>start 99 5 2 . stop 20 0 1 6 .</filename>, which gives the script a | ||
| 1376 | runlevel of 99, starts the script in initlevels 2 and 5, and | ||
| 1377 | stops the script in levels 0, 1 and 6. | ||
| 1378 | </para> | ||
| 1379 | <para> | ||
| 1380 | The variable is mandatory and is used in recipes when using | ||
| 1381 | <filename>update-rc.d.bbclass</filename>. | ||
| 1382 | </para> | ||
| 1383 | </glossdef> | ||
| 1384 | </glossentry> | ||
| 1385 | |||
| 1386 | |||
| 1387 | </glossdiv> | ||
| 1388 | |||
| 1389 | <!-- <glossdiv id='var-glossary-j'><title>J</title>--> | ||
| 1390 | <!-- </glossdiv>--> | ||
| 1391 | |||
| 1392 | <glossdiv id='var-glossary-k'><title>K</title> | ||
| 1393 | |||
| 1394 | <glossentry id='var-KBRANCH'><glossterm>KBRANCH</glossterm> | ||
| 1395 | <glossdef> | ||
| 1396 | <para> | ||
| 1397 | A regular expression used by the build process to explicitly identify the kernel | ||
| 1398 | branch that is validated, patched and configured during a build. | ||
| 1399 | The <filename>KBRANCH</filename> variable is optional. | ||
| 1400 | You can use it to trigger checks to ensure the exact kernel branch you want is | ||
| 1401 | being used by the build process. | ||
| 1402 | </para> | ||
| 1403 | |||
| 1404 | <para> | ||
| 1405 | Values for this variable are set in the kernel's recipe file and the kernel's | ||
| 1406 | append file. | ||
| 1407 | For example, if you are using the Yocto Project kernel that is based on the | ||
| 1408 | Linux 3.4 kernel, the kernel recipe file is the | ||
| 1409 | <filename>meta/recipes-kernel/linux/linux-yocto_3.4.bb</filename> file. | ||
| 1410 | Following is the default value for <filename>KBRANCH</filename> and the default | ||
| 1411 | override for the architectures the Yocto Project supports: | ||
| 1412 | <literallayout class='monospaced'> | ||
| 1413 | KBRANCH_DEFAULT = "standard/base" | ||
| 1414 | KBRANCH = "${KBRANCH_DEFAULT}" | ||
| 1415 | </literallayout> | ||
| 1416 | This branch exists in the <filename>linux-yocto-3.4</filename> kernel Git | ||
| 1417 | repository <ulink url='&YOCTO_GIT_URL;/cgit.cgi/linux-yocto-3.4/refs/heads'></ulink>. | ||
| 1418 | </para> | ||
| 1419 | |||
| 1420 | <para> | ||
| 1421 | This variable is also used from the kernel's append file to identify the kernel | ||
| 1422 | branch specific to a particular machine or target hardware. | ||
| 1423 | The kernel's append file is located in the BSP layer for a given machine. | ||
| 1424 | For example, the kernel append file for the Crown Bay BSP is in the | ||
| 1425 | <filename>meta-intel</filename> Git repository and is named | ||
| 1426 | <filename>meta-crownbay/recipes-kernel/linux/linux-yocto_3.4.bbappend</filename>. | ||
| 1427 | Here are the related statements from the append file: | ||
| 1428 | <literallayout class='monospaced'> | ||
| 1429 | COMPATIBLE_MACHINE_crownbay = "crownbay" | ||
| 1430 | KMACHINE_crownbay = "crownbay" | ||
| 1431 | KBRANCH_crownbay = "standard/crownbay" | ||
| 1432 | |||
| 1433 | COMPATIBLE_MACHINE_crownbay-noemgd = "crownbay-noemgd" | ||
| 1434 | KMACHINE_crownbay-noemgd = "crownbay" | ||
| 1435 | KBRANCH_crownbay-noemgd = "standard/crownbay" | ||
| 1436 | </literallayout> | ||
| 1437 | The <filename>KBRANCH_*</filename> statements identify the kernel branch to | ||
| 1438 | use when building for the Crown Bay BSP. | ||
| 1439 | In this case there are two identical statements: one for each type of | ||
| 1440 | Crown Bay machine. | ||
| 1441 | </para> | ||
| 1442 | </glossdef> | ||
| 1443 | </glossentry> | ||
| 1444 | |||
| 1445 | <glossentry id='var-KERNEL_FEATURES'><glossterm>KERNEL_FEATURES</glossterm> | ||
| 1446 | <glossdef> | ||
| 1447 | <para>Includes additional metadata from the Yocto Project kernel Git repository. | ||
| 1448 | In the OpenEmbedded build system, the default Board Support Packages (BSPs) | ||
| 1449 | metadata is provided through | ||
| 1450 | the <filename>KMACHINE</filename> and <filename>KBRANCH</filename> variables. | ||
| 1451 | You can use the <filename>KERNEL_FEATURES</filename> variable to further | ||
| 1452 | add metadata for all BSPs.</para> | ||
| 1453 | <para>The metadata you add through this variable includes config fragments and | ||
| 1454 | features descriptions, | ||
| 1455 | which usually includes patches as well as config fragments. | ||
| 1456 | You typically override the <filename>KERNEL_FEATURES</filename> variable | ||
| 1457 | for a specific machine. | ||
| 1458 | In this way, you can provide validated, but optional, sets of kernel | ||
| 1459 | configurations and features.</para> | ||
| 1460 | <para>For example, the following adds <filename>netfilter</filename> to all | ||
| 1461 | the Yocto Project kernels and adds sound support to the <filename>qemux86</filename> | ||
| 1462 | machine: | ||
| 1463 | <literallayout class='monospaced'> | ||
| 1464 | # Add netfilter to all linux-yocto kernels | ||
| 1465 | KERNEL_FEATURES="features/netfilter" | ||
| 1466 | |||
| 1467 | # Add sound support to the qemux86 machine | ||
| 1468 | KERNEL_FEATURES_append_qemux86=" cfg/sound" | ||
| 1469 | </literallayout></para> | ||
| 1470 | </glossdef> | ||
| 1471 | </glossentry> | ||
| 1472 | |||
| 1473 | <glossentry id='var-KERNEL_IMAGETYPE'><glossterm>KERNEL_IMAGETYPE</glossterm> | ||
| 1474 | <glossdef> | ||
| 1475 | <para>The type of kernel to build for a device, usually set by the | ||
| 1476 | machine configuration files and defaults to "zImage". | ||
| 1477 | This variable is used | ||
| 1478 | when building the kernel and is passed to <filename>make</filename> as the target to | ||
| 1479 | build.</para> | ||
| 1480 | </glossdef> | ||
| 1481 | </glossentry> | ||
| 1482 | |||
| 1483 | <glossentry id='var-KMACHINE'><glossterm>KMACHINE</glossterm> | ||
| 1484 | <glossdef> | ||
| 1485 | <para> | ||
| 1486 | The machine as known by the kernel. | ||
| 1487 | Sometimes the machine name used by the kernel does not match the machine name | ||
| 1488 | used by the OpenEmbedded build system. | ||
| 1489 | For example, the machine name that the OpenEmbedded build system understands as | ||
| 1490 | <filename>qemuarm</filename> goes by a different name in the Linux Yocto kernel. | ||
| 1491 | The kernel understands that machine as <filename>arm_versatile926ejs</filename>. | ||
| 1492 | For cases like these, the <filename>KMACHINE</filename> variable maps the | ||
| 1493 | kernel machine name to the OpenEmbedded build system machine name. | ||
| 1494 | </para> | ||
| 1495 | |||
| 1496 | <para> | ||
| 1497 | Kernel machine names are initially defined in the | ||
| 1498 | <ulink url='&YOCTO_GIT_URL;/cgit.cgi'>Yocto Linux Kernel</ulink> in | ||
| 1499 | the <filename>meta</filename> branch. | ||
| 1500 | From the <filename>meta</filename> branch, look in | ||
| 1501 | the <filename>meta/cfg/kernel-cache/bsp/<bsp_name>/<bsp-name>-<kernel-type>.scc</filename> file. | ||
| 1502 | For example, from the <filename>meta</filename> branch in the | ||
| 1503 | <filename>linux-yocto-3.0</filename> kernel, the | ||
| 1504 | <filename>meta/cfg/kernel-cache/bsp/cedartrail/cedartrail-standard.scc</filename> file | ||
| 1505 | has the following: | ||
| 1506 | <literallayout class='monospaced'> | ||
| 1507 | define KMACHINE cedartrail | ||
| 1508 | define KTYPE standard | ||
| 1509 | define KARCH i386 | ||
| 1510 | |||
| 1511 | include ktypes/standard | ||
| 1512 | branch cedartrail | ||
| 1513 | |||
| 1514 | include cedartrail.scc | ||
| 1515 | </literallayout> | ||
| 1516 | You can see that the kernel understands the machine name for the Cedar Trail BSP as | ||
| 1517 | <filename>cedartrail</filename>. | ||
| 1518 | </para> | ||
| 1519 | |||
| 1520 | <para> | ||
| 1521 | If you look in the Cedar Trail BSP layer in the <filename>meta-intel</filename> source | ||
| 1522 | repository at <filename>meta-cedartrail/recipes-kernel/linux/linux-yocto_3.0.bbappend</filename>, | ||
| 1523 | you will find the following statements among others: | ||
| 1524 | <literallayout class='monospaced'> | ||
| 1525 | COMPATIBLE_MACHINE_cedartrail = "cedartrail" | ||
| 1526 | KMACHINE_cedartrail = "cedartrail" | ||
| 1527 | KBRANCH_cedartrail = "yocto/standard/cedartrail" | ||
| 1528 | KERNEL_FEATURES_append_cedartrail += "bsp/cedartrail/cedartrail-pvr-merge.scc" | ||
| 1529 | KERNEL_FEATURES_append_cedartrail += "cfg/efi-ext.scc" | ||
| 1530 | |||
| 1531 | COMPATIBLE_MACHINE_cedartrail-nopvr = "cedartrail" | ||
| 1532 | KMACHINE_cedartrail-nopvr = "cedartrail" | ||
| 1533 | KBRANCH_cedartrail-nopvr = "yocto/standard/cedartrail" | ||
| 1534 | KERNEL_FEATURES_append_cedartrail-nopvr += " cfg/smp.scc" | ||
| 1535 | </literallayout> | ||
| 1536 | The <filename>KMACHINE</filename> statements in the kernel's append file make sure that | ||
| 1537 | the OpenEmbedded build system and the Yocto Linux kernel understand the same machine | ||
| 1538 | names. | ||
| 1539 | </para> | ||
| 1540 | |||
| 1541 | <para> | ||
| 1542 | This append file uses two <filename>KMACHINE</filename> statements. | ||
| 1543 | The first is not really necessary but does ensure that the machine known to the | ||
| 1544 | OpenEmbedded build system as <filename>cedartrail</filename> maps to the machine | ||
| 1545 | in the kernel also known as <filename>cedartrail</filename>: | ||
| 1546 | <literallayout class='monospaced'> | ||
| 1547 | KMACHINE_cedartrail = "cedartrail" | ||
| 1548 | </literallayout> | ||
| 1549 | </para> | ||
| 1550 | |||
| 1551 | <para> | ||
| 1552 | The second statement is a good example of why the <filename>KMACHINE</filename> variable | ||
| 1553 | is needed. | ||
| 1554 | In this example, the OpenEmbedded build system uses the <filename>cedartrail-nopvr</filename> | ||
| 1555 | machine name to refer to the Cedar Trail BSP that does not support the propriatory | ||
| 1556 | PowerVR driver. | ||
| 1557 | The kernel, however, uses the machine name <filename>cedartrail</filename>. | ||
| 1558 | Thus, the append file must map the <filename>cedartrail-nopvr</filename> machine name to | ||
| 1559 | the kernel's <filename>cedartrail</filename> name: | ||
| 1560 | <literallayout class='monospaced'> | ||
| 1561 | KMACHINE_cedartrail-nopvr = "cedartrail" | ||
| 1562 | </literallayout> | ||
| 1563 | </para> | ||
| 1564 | |||
| 1565 | <para> | ||
| 1566 | BSPs that ship with the Yocto Project release provide all mappings between the Yocto | ||
| 1567 | Project kernel machine names and the OpenEmbedded machine names. | ||
| 1568 | Be sure to use the <filename>KMACHINE</filename> if you create a BSP and the machine | ||
| 1569 | name you use is different than that used in the kernel. | ||
| 1570 | </para> | ||
| 1571 | </glossdef> | ||
| 1572 | </glossentry> | ||
| 1573 | |||
| 1574 | </glossdiv> | ||
| 1575 | |||
| 1576 | <glossdiv id='var-glossary-l'><title>L</title> | ||
| 1577 | |||
| 1578 | <glossentry id='var-LAYERDEPENDS'><glossterm>LAYERDEPENDS</glossterm> | ||
| 1579 | <glossdef> | ||
| 1580 | <para>Lists the layers that this recipe depends upon, separated by spaces. | ||
| 1581 | Optionally, you can specify a specific layer version for a dependency | ||
| 1582 | by adding it to the end of the layer name with a colon, (e.g. "anotherlayer:3" | ||
| 1583 | to be compared against <filename>LAYERVERSION_anotherlayer</filename> in this case). | ||
| 1584 | An error will be produced if any dependency is missing or | ||
| 1585 | the version numbers do not match exactly (if specified). | ||
| 1586 | This variable is used in the <filename>conf/layer.conf</filename> file | ||
| 1587 | and must be suffixed with the name of the specific layer (e.g. | ||
| 1588 | <filename>LAYERDEPENDS_mylayer</filename>).</para> | ||
| 1589 | </glossdef> | ||
| 1590 | </glossentry> | ||
| 1591 | |||
| 1592 | <glossentry id='var-LAYERDIR'><glossterm>LAYERDIR</glossterm> | ||
| 1593 | <glossdef> | ||
| 1594 | <para>When used inside the <filename>layer.conf</filename> configuration | ||
| 1595 | file, this variable provides the path of the current layer. | ||
| 1596 | This variable requires immediate expansion | ||
| 1597 | (see the BitBake manual) as lazy expansion can result in | ||
| 1598 | the expansion happening in the wrong directory and therefore | ||
| 1599 | giving the wrong value.</para> | ||
| 1600 | </glossdef> | ||
| 1601 | </glossentry> | ||
| 1602 | |||
| 1603 | <glossentry id='var-LAYERVERSION'><glossterm>LAYERVERSION</glossterm> | ||
| 1604 | <glossdef> | ||
| 1605 | <para>Optionally specifies the version of a layer as a single number. | ||
| 1606 | You can use this within <filename>LAYERDEPENDS</filename> for another layer in order to | ||
| 1607 | depend on a specific version of the layer. | ||
| 1608 | This variable is used in the <filename>conf/layer.conf</filename> file | ||
| 1609 | and must be suffixed with the name of the specific layer (e.g. | ||
| 1610 | <filename>LAYERVERSION_mylayer</filename>).</para> | ||
| 1611 | </glossdef> | ||
| 1612 | </glossentry> | ||
| 1613 | |||
| 1614 | <glossentry id='var-LIC_FILES_CHKSUM'><glossterm>LIC_FILES_CHKSUM</glossterm> | ||
| 1615 | <glossdef> | ||
| 1616 | <para>Checksums of the license text in the recipe source code.</para> | ||
| 1617 | <para>This variable tracks changes in license text of the source | ||
| 1618 | code files. | ||
| 1619 | If the license text is changed, it will trigger a build | ||
| 1620 | failure, which gives the developer an opportunity to review any | ||
| 1621 | license change.</para> | ||
| 1622 | <para> | ||
| 1623 | This variable must be defined for all recipes (unless <filename>LICENSE</filename> | ||
| 1624 | is set to "CLOSED")</para> | ||
| 1625 | <para>For more information, see the | ||
| 1626 | <link linkend='usingpoky-configuring-LIC_FILES_CHKSUM'> | ||
| 1627 | Tracking License Changes</link> section</para> | ||
| 1628 | </glossdef> | ||
| 1629 | </glossentry> | ||
| 1630 | |||
| 1631 | <glossentry id='var-LICENSE'><glossterm>LICENSE</glossterm> | ||
| 1632 | <glossdef> | ||
| 1633 | <para> | ||
| 1634 | The list of source licenses for the recipe. | ||
| 1635 | Follow these rules: | ||
| 1636 | <itemizedlist> | ||
| 1637 | <listitem><para>Do not use spaces within individual | ||
| 1638 | license names.</para></listitem> | ||
| 1639 | <listitem><para>Separate license names using | ||
| 1640 | | (pipe) when there is a choice between licenses. | ||
| 1641 | </para></listitem> | ||
| 1642 | <listitem><para>Separate license names using | ||
| 1643 | & (ampersand) when multiple licenses exist | ||
| 1644 | that cover different parts of the source. | ||
| 1645 | </para></listitem> | ||
| 1646 | <listitem><para>You can use spaces between license | ||
| 1647 | names.</para></listitem> | ||
| 1648 | </itemizedlist> | ||
| 1649 | </para> | ||
| 1650 | |||
| 1651 | <para> | ||
| 1652 | Here are some examples: | ||
| 1653 | <literallayout class='monospaced'> | ||
| 1654 | LICENSE = "LGPLv2.1 | GPLv3" | ||
| 1655 | LICENSE = "MPL-1 & LGPLv2.1" | ||
| 1656 | LICENSE = "GPLv2+" | ||
| 1657 | </literallayout> | ||
| 1658 | The first example is from the recipes for Qt, which the user | ||
| 1659 | may choose to distribute under either the LGPL version | ||
| 1660 | 2.1 or GPL version 3. | ||
| 1661 | The second example is from Cairo where two licenses cover | ||
| 1662 | different parts of the source code. | ||
| 1663 | The final example is from <filename>sysstat</filename>, | ||
| 1664 | which presents a single license. | ||
| 1665 | </para> | ||
| 1666 | </glossdef> | ||
| 1667 | </glossentry> | ||
| 1668 | |||
| 1669 | <glossentry id='var-LICENSE_PATH'><glossterm>LICENSE_PATH</glossterm> | ||
| 1670 | <glossdef> | ||
| 1671 | <para>Path to additional licenses used during the build. | ||
| 1672 | By default, the OpenEmbedded build system uses <filename>COMMON_LICENSE_DIR</filename> | ||
| 1673 | to define the directory that holds common license text used during the build. | ||
| 1674 | The <filename>LICENSE_PATH</filename> variable allows you to extend that | ||
| 1675 | location to other areas that have additional licenses: | ||
| 1676 | <literallayout class='monospaced'> | ||
| 1677 | LICENSE_PATH += "/path/to/additional/common/licenses" | ||
| 1678 | </literallayout></para> | ||
| 1679 | </glossdef> | ||
| 1680 | </glossentry> | ||
| 1681 | |||
| 1682 | </glossdiv> | ||
| 1683 | |||
| 1684 | <glossdiv id='var-glossary-m'><title>M</title> | ||
| 1685 | |||
| 1686 | <glossentry id='var-MACHINE'><glossterm>MACHINE</glossterm> | ||
| 1687 | <glossdef> | ||
| 1688 | <para> | ||
| 1689 | Specifies the target device for which the image is built. | ||
| 1690 | You define <filename>MACHINE</filename> in the | ||
| 1691 | <filename>local.conf</filename> file found in the | ||
| 1692 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>. | ||
| 1693 | By default, <filename>MACHINE</filename> is set to | ||
| 1694 | "qemux86", which is an x86-based architecture machine to | ||
| 1695 | be emulated using QEMU: | ||
| 1696 | <literallayout class='monospaced'> | ||
| 1697 | MACHINE ?= "qemux86" | ||
| 1698 | </literallayout> | ||
| 1699 | The variable corresponds to a machine configuration file of the | ||
| 1700 | same name, through which machine-specific configurations are set. | ||
| 1701 | Thus, when <filename>MACHINE</filename> is set to "qemux86" there | ||
| 1702 | exists the corresponding <filename>qemux86.conf</filename> machine | ||
| 1703 | configuration file, which can be found in the | ||
| 1704 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink> | ||
| 1705 | in <filename>meta/conf/machine</filename>. | ||
| 1706 | </para> | ||
| 1707 | |||
| 1708 | <para> | ||
| 1709 | The list of machines supported by the Yocto Project as | ||
| 1710 | shipped include the following: | ||
| 1711 | <literallayout class='monospaced'> | ||
| 1712 | MACHINE ?= "qemuarm" | ||
| 1713 | MACHINE ?= "qemumips" | ||
| 1714 | MACHINE ?= "qemuppc" | ||
| 1715 | MACHINE ?= "qemux86" | ||
| 1716 | MACHINE ?= "qemux86-64" | ||
| 1717 | MACHINE ?= "atom-pc" | ||
| 1718 | MACHINE ?= "beagleboard" | ||
| 1719 | MACHINE ?= "mpc8315e-rdb" | ||
| 1720 | MACHINE ?= "routerstationpro" | ||
| 1721 | </literallayout> | ||
| 1722 | The last four are Yocto Project reference hardware boards, which | ||
| 1723 | are provided in the <filename>meta-yocto-bsp</filename> layer. | ||
| 1724 | <note>Adding additional Board Support Package (BSP) layers | ||
| 1725 | to your configuration adds new possible settings for | ||
| 1726 | <filename>MACHINE</filename>. | ||
| 1727 | </note> | ||
| 1728 | </para> | ||
| 1729 | </glossdef> | ||
| 1730 | </glossentry> | ||
| 1731 | |||
| 1732 | <glossentry id='var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS'><glossterm>MACHINE_ESSENTIAL_EXTRA_RDEPENDS</glossterm> | ||
| 1733 | <glossdef> | ||
| 1734 | <para></para> | ||
| 1735 | <para> | ||
| 1736 | A list of required machine-specific packages to install as part of | ||
| 1737 | the image being built. | ||
| 1738 | The build process depends on these packages being present. | ||
| 1739 | Furthermore, because this is a "machine essential" variable, the list of | ||
| 1740 | packages are essential for the machine to boot. | ||
| 1741 | The impact of this variable affects images based on | ||
| 1742 | <filename>packagegroup-core-boot</filename>, | ||
| 1743 | including the <filename>core-image-minimal</filename> image. | ||
| 1744 | </para> | ||
| 1745 | <para> | ||
| 1746 | This variable is similar to the | ||
| 1747 | <filename><link linkend='var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS'>MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</link></filename> | ||
| 1748 | variable with the exception that the image being built has a build | ||
| 1749 | dependency on the variable's list of packages. | ||
| 1750 | In other words, the image will not build if a file in this list is not found. | ||
| 1751 | </para> | ||
| 1752 | <para> | ||
| 1753 | As an example, suppose the machine for which you are building requires | ||
| 1754 | <filename>example-init</filename> to be run during boot to initialize the hardware. | ||
| 1755 | In this case, you would use the following in the machine's | ||
| 1756 | <filename>.conf</filename> configuration file: | ||
| 1757 | <literallayout class='monospaced'> | ||
| 1758 | MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "example-init" | ||
| 1759 | </literallayout> | ||
| 1760 | </para> | ||
| 1761 | </glossdef> | ||
| 1762 | </glossentry> | ||
| 1763 | |||
| 1764 | <glossentry id='var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS'><glossterm>MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</glossterm> | ||
| 1765 | <glossdef> | ||
| 1766 | <para></para> | ||
| 1767 | <para> | ||
| 1768 | A list of recommended machine-specific packages to install as part of | ||
| 1769 | the image being built. | ||
| 1770 | The build process does not depend on these packages being present. | ||
| 1771 | However, because this is a "machine essential" variable, the list of | ||
| 1772 | packages are essential for the machine to boot. | ||
| 1773 | The impact of this variable affects images based on | ||
| 1774 | <filename>packagegroup-core-boot</filename>, | ||
| 1775 | including the <filename>core-image-minimal</filename> image. | ||
| 1776 | </para> | ||
| 1777 | <para> | ||
| 1778 | This variable is similar to the | ||
| 1779 | <filename><link linkend='var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS'>MACHINE_ESSENTIAL_EXTRA_RDEPENDS</link></filename> | ||
| 1780 | variable with the exception that the image being built does not have a build | ||
| 1781 | dependency on the variable's list of packages. | ||
| 1782 | In other words, the image will still build if a package in this list is not found. | ||
| 1783 | Typically, this variable is used to handle essential kernel modules, whose | ||
| 1784 | functionality may be selected to be built into the kernel rather than as a module, | ||
| 1785 | in which case a package will not be produced. | ||
| 1786 | </para> | ||
| 1787 | <para> | ||
| 1788 | Consider an example where you have a custom kernel where a specific touchscreen | ||
| 1789 | driver is required for the machine to be usable. | ||
| 1790 | However, the driver can be built as a module or | ||
| 1791 | into the kernel depending on the kernel configuration. | ||
| 1792 | If the driver is built as a module, you want it to be installed. | ||
| 1793 | But, when the driver is built into the kernel, you still want the | ||
| 1794 | build to succeed. | ||
| 1795 | This variable sets up a "recommends" relationship so that in the latter case, | ||
| 1796 | the build will not fail due to the missing package. | ||
| 1797 | To accomplish this, assuming the package for the module was called | ||
| 1798 | <filename>kernel-module-ab123</filename>, you would use the | ||
| 1799 | following in the machine's <filename>.conf</filename> configuration | ||
| 1800 | file: | ||
| 1801 | <literallayout class='monospaced'> | ||
| 1802 | MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS += "kernel-module-ab123" | ||
| 1803 | </literallayout> | ||
| 1804 | </para> | ||
| 1805 | <para> | ||
| 1806 | Some examples of these machine essentials are flash, screen, keyboard, mouse, | ||
| 1807 | or touchscreen drivers (depending on the machine). | ||
| 1808 | </para> | ||
| 1809 | </glossdef> | ||
| 1810 | </glossentry> | ||
| 1811 | |||
| 1812 | <glossentry id='var-MACHINE_EXTRA_RDEPENDS'><glossterm>MACHINE_EXTRA_RDEPENDS</glossterm> | ||
| 1813 | <glossdef> | ||
| 1814 | <para> | ||
| 1815 | A list of machine-specific packages to install as part of the | ||
| 1816 | image being built that are not essential for the machine to boot. | ||
| 1817 | However, the build process for more fully-featured images | ||
| 1818 | depends on the packages being present. | ||
| 1819 | </para> | ||
| 1820 | <para> | ||
| 1821 | This variable affects all images based on | ||
| 1822 | <filename>packagegroup-base</filename>, which does not include the | ||
| 1823 | <filename>core-image-minimal</filename> or <filename>core-image-basic</filename> | ||
| 1824 | images. | ||
| 1825 | </para> | ||
| 1826 | <para> | ||
| 1827 | The variable is similar to the | ||
| 1828 | <filename><link linkend='var-MACHINE_EXTRA_RRECOMMENDS'>MACHINE_EXTRA_RRECOMMENDS</link></filename> | ||
| 1829 | variable with the exception that the image being built has a build | ||
| 1830 | dependency on the variable's list of packages. | ||
| 1831 | In other words, the image will not build if a file in this list is not found. | ||
| 1832 | </para> | ||
| 1833 | <para> | ||
| 1834 | An example is a machine that has WiFi capability but is not essential | ||
| 1835 | For the machine to boot the image. | ||
| 1836 | However, if you are building a more fully-featured image, you want to enable | ||
| 1837 | the WiFi. | ||
| 1838 | The package containing the firmware for the WiFi hardware is always | ||
| 1839 | expected to exist, so it is acceptable for the build process to depend upon | ||
| 1840 | finding the package. | ||
| 1841 | In this case, assuming the package for the firmware was called | ||
| 1842 | <filename>wifidriver-firmware</filename>, you would use the following in the | ||
| 1843 | <filename>.conf</filename> file for the machine: | ||
| 1844 | <literallayout class='monospaced'> | ||
| 1845 | MACHINE_EXTRA_RDEPENDS += "wifidriver-firmware" | ||
| 1846 | </literallayout> | ||
| 1847 | </para> | ||
| 1848 | </glossdef> | ||
| 1849 | </glossentry> | ||
| 1850 | |||
| 1851 | <glossentry id='var-MACHINE_EXTRA_RRECOMMENDS'><glossterm>MACHINE_EXTRA_RRECOMMENDS</glossterm> | ||
| 1852 | <glossdef> | ||
| 1853 | <para></para> | ||
| 1854 | <para> | ||
| 1855 | A list of machine-specific packages to install as part of the | ||
| 1856 | image being built that are not essential for booting the machine. | ||
| 1857 | The image being built has no build dependency on this list of packages. | ||
| 1858 | </para> | ||
| 1859 | <para> | ||
| 1860 | This variable affects only images based on | ||
| 1861 | <filename>packagegroup-base</filename>, which does not include the | ||
| 1862 | <filename>core-image-minimal</filename> or <filename>core-image-basic</filename> | ||
| 1863 | images. | ||
| 1864 | </para> | ||
| 1865 | <para> | ||
| 1866 | This variable is similar to the | ||
| 1867 | <filename><link linkend='var-MACHINE_EXTRA_RDEPENDS'>MACHINE_EXTRA_RDEPENDS</link></filename> | ||
| 1868 | variable with the exception that the image being built does not have a build | ||
| 1869 | dependency on the variable's list of packages. | ||
| 1870 | In other words, the image will build if a file in this list is not found. | ||
| 1871 | </para> | ||
| 1872 | <para> | ||
| 1873 | An example is a machine that has WiFi capability but is not essential | ||
| 1874 | For the machine to boot the image. | ||
| 1875 | However, if you are building a more fully-featured image, you want to enable | ||
| 1876 | WiFi. | ||
| 1877 | In this case, the package containing the WiFi kernel module will not be produced | ||
| 1878 | if the WiFi driver is built into the kernel, in which case you still want the | ||
| 1879 | build to succeed instead of failing as a result of the package not being found. | ||
| 1880 | To accomplish this, assuming the package for the module was called | ||
| 1881 | <filename>kernel-module-examplewifi</filename>, you would use the | ||
| 1882 | following in the <filename>.conf</filename> file for the machine: | ||
| 1883 | <literallayout class='monospaced'> | ||
| 1884 | MACHINE_EXTRA_RRECOMMENDS += "kernel-module-examplewifi" | ||
| 1885 | </literallayout> | ||
| 1886 | </para> | ||
| 1887 | </glossdef> | ||
| 1888 | </glossentry> | ||
| 1889 | |||
| 1890 | <glossentry id='var-MACHINE_FEATURES'><glossterm>MACHINE_FEATURES</glossterm> | ||
| 1891 | <glossdef> | ||
| 1892 | <para>Specifies the list of hardware features the | ||
| 1893 | <link linkend='var-MACHINE'>MACHINE</link> supports. | ||
| 1894 | For example, including the "bluetooth" feature causes the | ||
| 1895 | <filename>bluez</filename> bluetooth daemon to be built and | ||
| 1896 | added to the image. | ||
| 1897 | It also causes the <filename>connman</filename> recipe | ||
| 1898 | to look at <filename>MACHINE_FEATURES</filename> and when it | ||
| 1899 | finds "bluetooth" there it enables the bluetooth | ||
| 1900 | support in ConnMan. | ||
| 1901 | </para> | ||
| 1902 | |||
| 1903 | <para> | ||
| 1904 | For a list of features supported by the Yocto Project as shipped, | ||
| 1905 | see the "<link linkend='ref-features-machine'>Machine</link>" section. | ||
| 1906 | </para> | ||
| 1907 | </glossdef> | ||
| 1908 | </glossentry> | ||
| 1909 | |||
| 1910 | <glossentry id='var-MACHINE_FEATURES_BACKFILL'><glossterm>MACHINE_FEATURES_BACKFILL</glossterm> | ||
| 1911 | <glossdef> | ||
| 1912 | <para>Features to be added to | ||
| 1913 | <filename><link linkend='var-MACHINE_FEATURES'>MACHINE_FEATURES</link></filename> | ||
| 1914 | if not also present in | ||
| 1915 | <filename><link linkend='var-MACHINE_FEATURES_BACKFILL_CONSIDERED'>MACHINE_FEATURES_BACKFILL_CONSIDERED</link></filename>. | ||
| 1916 | </para> | ||
| 1917 | |||
| 1918 | <para> | ||
| 1919 | This variable is set in the <filename>meta/conf/bitbake.conf</filename> file. | ||
| 1920 | It is not intended to be user-configurable. | ||
| 1921 | It is best to just reference the variable to see which machine features are | ||
| 1922 | being backfilled for all machine configurations. | ||
| 1923 | See the <link linkend='ref-features-backfill'>Feature backfilling</link> section for | ||
| 1924 | more information. | ||
| 1925 | </para> | ||
| 1926 | </glossdef> | ||
| 1927 | </glossentry> | ||
| 1928 | |||
| 1929 | <glossentry id='var-MACHINE_FEATURES_BACKFILL_CONSIDERED'><glossterm>MACHINE_FEATURES_BACKFILL_CONSIDERED</glossterm> | ||
| 1930 | <glossdef> | ||
| 1931 | <para>Features from | ||
| 1932 | <filename><link linkend='var-MACHINE_FEATURES_BACKFILL'>MACHINE_FEATURES_BACKFILL</link></filename> | ||
| 1933 | that should not be backfilled (i.e. added to | ||
| 1934 | <filename><link linkend='var-MACHINE_FEATURES'>MACHINE_FEATURES</link></filename>) | ||
| 1935 | during the build. | ||
| 1936 | See the <link linkend='ref-features-backfill'>Feature backfilling</link> section for | ||
| 1937 | more information. | ||
| 1938 | </para> | ||
| 1939 | </glossdef> | ||
| 1940 | </glossentry> | ||
| 1941 | |||
| 1942 | <glossentry id='var-MAINTAINER'><glossterm>MAINTAINER</glossterm> | ||
| 1943 | <glossdef> | ||
| 1944 | <para>The email address of the distribution maintainer.</para> | ||
| 1945 | </glossdef> | ||
| 1946 | </glossentry> | ||
| 1947 | |||
| 1948 | <glossentry id='var-MLPREFIX'><glossterm>MLPREFIX</glossterm> | ||
| 1949 | <glossdef> | ||
| 1950 | <para> | ||
| 1951 | Specifies a prefix has been added to | ||
| 1952 | <link linkend='var-PN'><filename>PN</filename></link> to create a special version | ||
| 1953 | of a recipe or package, such as a multilib version. | ||
| 1954 | The variable is used in places where the prefix needs to be | ||
| 1955 | added to or removed from a the name (e.g. the | ||
| 1956 | <link linkend='var-BPN'><filename>BPN</filename></link> variable). | ||
| 1957 | <filename>MLPREFIX</filename> gets set when a prefix has been | ||
| 1958 | added to <filename>PN</filename>. | ||
| 1959 | </para> | ||
| 1960 | </glossdef> | ||
| 1961 | </glossentry> | ||
| 1962 | |||
| 1963 | <glossentry id='var-MULTIMACH_TARGET_SYS'><glossterm>MULTIMACH_TARGET_SYS</glossterm> | ||
| 1964 | <glossdef> | ||
| 1965 | <para> | ||
| 1966 | Separates files for different machines such that you can build | ||
| 1967 | for multiple target machines using the same output directories. | ||
| 1968 | See the <link linkend='var-STAMP'><filename>STAMP</filename></link> variable | ||
| 1969 | for an example. | ||
| 1970 | </para> | ||
| 1971 | </glossdef> | ||
| 1972 | </glossentry> | ||
| 1973 | |||
| 1974 | </glossdiv> | ||
| 1975 | |||
| 1976 | <!-- <glossdiv id='var-glossary-n'><title>N</title>--> | ||
| 1977 | <!-- </glossdiv>--> | ||
| 1978 | |||
| 1979 | <glossdiv id='var-glossary-o'><title>O</title> | ||
| 1980 | |||
| 1981 | <glossentry id='var-OE_TERMINAL'><glossterm>OE_TERMINAL</glossterm> | ||
| 1982 | <glossdef> | ||
| 1983 | <para> | ||
| 1984 | Controls how the OpenEmbedded build system spawns | ||
| 1985 | interactive terminals on the host development system | ||
| 1986 | (e.g. using the BitBake command with the | ||
| 1987 | <filename>-c devshell</filename> command-line option). | ||
| 1988 | For more information, see the | ||
| 1989 | "<ulink url='&YOCTO_DOCS_DEV_URL;#platdev-appdev-devshell'>Using a Development Shell</ulink>" section | ||
| 1990 | in the Yocto Project Development Manual. | ||
| 1991 | </para> | ||
| 1992 | |||
| 1993 | <para> | ||
| 1994 | You can use the following values for the | ||
| 1995 | <filename>OE_TERMINAL</filename> variable: | ||
| 1996 | <literallayout class='monospaced'> | ||
| 1997 | auto | ||
| 1998 | gnome | ||
| 1999 | xfce | ||
| 2000 | rxvt | ||
| 2001 | screen | ||
| 2002 | konsole | ||
| 2003 | none | ||
| 2004 | </literallayout> | ||
| 2005 | <note>Konsole support only works for KDE 3.x. | ||
| 2006 | Also, "auto" is the default behavior for | ||
| 2007 | <filename>OE_TERMINAL</filename></note> | ||
| 2008 | </para> | ||
| 2009 | </glossdef> | ||
| 2010 | </glossentry> | ||
| 2011 | </glossdiv> | ||
| 2012 | |||
| 2013 | <glossdiv id='var-glossary-p'><title>P</title> | ||
| 2014 | |||
| 2015 | <glossentry id='var-P'><glossterm>P</glossterm> | ||
| 2016 | <glossdef> | ||
| 2017 | <para>The recipe name and version. | ||
| 2018 | <filename>P</filename> is comprised of the following: | ||
| 2019 | <literallayout class='monospaced'> | ||
| 2020 | ${PN}-${PV} | ||
| 2021 | </literallayout></para> | ||
| 2022 | </glossdef> | ||
| 2023 | </glossentry> | ||
| 2024 | |||
| 2025 | <glossentry id='var-PACKAGE_ARCH'><glossterm>PACKAGE_ARCH</glossterm> | ||
| 2026 | <glossdef> | ||
| 2027 | <para>The architecture of the resulting package or packages.</para> | ||
| 2028 | </glossdef> | ||
| 2029 | </glossentry> | ||
| 2030 | |||
| 2031 | <glossentry id='var-PACKAGE_BEFORE_PN'><glossterm>PACKAGE_BEFORE_PN</glossterm> | ||
| 2032 | <glossdef> | ||
| 2033 | <para>Enables easily adding packages to | ||
| 2034 | <filename><link linkend='var-PACKAGES'>PACKAGES</link></filename> | ||
| 2035 | before <filename>${PN}</filename> so that the packages can pick | ||
| 2036 | up files that would normally be included in the default package.</para> | ||
| 2037 | </glossdef> | ||
| 2038 | </glossentry> | ||
| 2039 | |||
| 2040 | <glossentry id='var-PACKAGE_CLASSES'><glossterm>PACKAGE_CLASSES</glossterm> | ||
| 2041 | <glossdef> | ||
| 2042 | <para>This variable, which is set in the <filename>local.conf</filename> configuration | ||
| 2043 | file found in the <filename>conf</filename> folder of the | ||
| 2044 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>, | ||
| 2045 | specifies the package manager to use when packaging data. | ||
| 2046 | You can provide one or more arguments for the variable with the first | ||
| 2047 | argument being the package manager used to create images: | ||
| 2048 | <literallayout class='monospaced'> | ||
| 2049 | PACKAGE_CLASSES ?= "package_rpm package_deb package_ipk" | ||
| 2050 | </literallayout> | ||
| 2051 | For information on build performance effects as a result of the | ||
| 2052 | package manager use, see | ||
| 2053 | <link linkend='ref-classes-package'>Packaging - <filename>package*.bbclass</filename></link> | ||
| 2054 | in this manual. | ||
| 2055 | </para> | ||
| 2056 | </glossdef> | ||
| 2057 | </glossentry> | ||
| 2058 | |||
| 2059 | <glossentry id='var-PACKAGE_EXTRA_ARCHS'><glossterm>PACKAGE_EXTRA_ARCHS</glossterm> | ||
| 2060 | <glossdef> | ||
| 2061 | <para>Specifies the list of architectures compatible with the device CPU. | ||
| 2062 | This variable is useful when you build for several different devices that use | ||
| 2063 | miscellaneous processors such as XScale and ARM926-EJS).</para> | ||
| 2064 | </glossdef> | ||
| 2065 | </glossentry> | ||
| 2066 | |||
| 2067 | <glossentry id='var-PACKAGECONFIG'><glossterm>PACKAGECONFIG</glossterm> | ||
| 2068 | <glossdef> | ||
| 2069 | <para> | ||
| 2070 | This variable provides a means of enabling or disabling | ||
| 2071 | features of a recipe on a per-recipe basis. | ||
| 2072 | The <filename>PACKAGECONFIG</filename> | ||
| 2073 | variable itself specifies a space-separated list of the | ||
| 2074 | features to enable. | ||
| 2075 | The features themselves are specified as flags on the | ||
| 2076 | <filename>PACKAGECONFIG</filename> variable. | ||
| 2077 | You can provide up to four arguments, which are separated by | ||
| 2078 | commas, to determine the behavior of each feature | ||
| 2079 | when it is enabled or disabled. | ||
| 2080 | You can omit any argument you like but must retain the | ||
| 2081 | separating commas. | ||
| 2082 | The arguments specify the following: | ||
| 2083 | <orderedlist> | ||
| 2084 | <listitem><para>Extra arguments | ||
| 2085 | that should be added to the configure script argument list | ||
| 2086 | (<link linkend='var-EXTRA_OECONF'><filename>EXTRA_OECONF</filename></link>) | ||
| 2087 | if the feature is enabled.</para></listitem> | ||
| 2088 | <listitem><para>Extra arguments | ||
| 2089 | that should be added to <filename>EXTRA_OECONF</filename> | ||
| 2090 | if the feature is disabled. | ||
| 2091 | </para></listitem> | ||
| 2092 | <listitem><para>Additional build dependencies | ||
| 2093 | (<link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>) | ||
| 2094 | that should be added if the feature is enabled. | ||
| 2095 | </para></listitem> | ||
| 2096 | <listitem><para>Additional runtime dependencies | ||
| 2097 | (<link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>) | ||
| 2098 | that should be added if the feature is enabled. | ||
| 2099 | </para></listitem> | ||
| 2100 | </orderedlist> | ||
| 2101 | </para> | ||
| 2102 | |||
| 2103 | <para> | ||
| 2104 | Consider the following example taken from the | ||
| 2105 | <filename>librsvg</filename> recipe. | ||
| 2106 | In this example the feature is <filename>croco</filename>, which | ||
| 2107 | has three arguments that determine the feature's behavior. | ||
| 2108 | <literallayout class='monospaced'> | ||
| 2109 | PACKAGECONFIG ??= "croco" | ||
| 2110 | PACKAGECONFIG[croco] = "--with-croco,--without-croco,libcroco" | ||
| 2111 | </literallayout> | ||
| 2112 | The <filename>--with-croco</filename> and | ||
| 2113 | <filename>libcroco</filename> arguments apply only if | ||
| 2114 | the feature is enabled. | ||
| 2115 | In this case, <filename>--with-croco</filename> is | ||
| 2116 | added to the configure script argument list and | ||
| 2117 | <filename>libcroco</filename> is added to | ||
| 2118 | <filename><link linkend='var-DEPENDS'>DEPENDS</link></filename>. | ||
| 2119 | On the other hand, if the feature is disabled say through | ||
| 2120 | a <filename>.bbappend</filename> file in another layer, then | ||
| 2121 | the second argument <filename>--without-croco</filename> is | ||
| 2122 | added to the configure script rather than | ||
| 2123 | <filename>--with-croco</filename>. | ||
| 2124 | </para> | ||
| 2125 | </glossdef> | ||
| 2126 | </glossentry> | ||
| 2127 | |||
| 2128 | <glossentry id='var-PACKAGES'><glossterm>PACKAGES</glossterm> | ||
| 2129 | <glossdef> | ||
| 2130 | <para>The list of packages to be created from the recipe. | ||
| 2131 | The default value is the following: | ||
| 2132 | <literallayout class='monospaced'> | ||
| 2133 | ${PN}-dbg ${PN}-staticdev ${PN}-dev ${PN}-doc ${PN}-locale ${PACKAGE_BEFORE_PN} ${PN} | ||
| 2134 | </literallayout></para> | ||
| 2135 | </glossdef> | ||
| 2136 | </glossentry> | ||
| 2137 | |||
| 2138 | <glossentry id='var-PACKAGES_DYNAMIC'><glossterm>PACKAGES_DYNAMIC</glossterm> | ||
| 2139 | <glossdef> | ||
| 2140 | <para> | ||
| 2141 | A promise that your recipe satisfies runtime dependencies | ||
| 2142 | for optional modules that are found in other recipes. | ||
| 2143 | <filename>PACKAGES_DYNAMIC</filename> | ||
| 2144 | does not actually satisfy the dependencies, it only states that | ||
| 2145 | they should be satisfied. | ||
| 2146 | For example, if a hard, runtime dependency | ||
| 2147 | (<filename>RDEPENDS</filename>) of another package is satisfied | ||
| 2148 | at build time through the <filename>PACKAGES_DYNAMIC</filename> | ||
| 2149 | variable, but a package with the module name is never actually | ||
| 2150 | produced, then the other package will be broken. | ||
| 2151 | Thus, if you attempt to include that package in an image, | ||
| 2152 | you will get a dependency failure from the packaging system | ||
| 2153 | during <filename>do_rootfs</filename>. | ||
| 2154 | Typically, if there is a chance that such a situation can | ||
| 2155 | occur and the package that is not created is valid | ||
| 2156 | without the dependency being satisfied, then you should use | ||
| 2157 | <filename>RRECOMMENDS</filename> (a soft runtime dependency) | ||
| 2158 | instead of <filename>RDEPENDS</filename>. | ||
| 2159 | </para> | ||
| 2160 | |||
| 2161 | <para> | ||
| 2162 | For an example of how to use the <filename>PACKAGES_DYNAMIC</filename> | ||
| 2163 | variable when you are splitting packages, see the | ||
| 2164 | "<ulink url='&YOCTO_DOCS_DEV_URL;#handling-optional-module-packaging'>Handling Optional Module Packaging</ulink>" section | ||
| 2165 | in the Yocto Project Development Manual. | ||
| 2166 | </para> | ||
| 2167 | </glossdef> | ||
| 2168 | </glossentry> | ||
| 2169 | |||
| 2170 | <glossentry id='var-PARALLEL_MAKE'><glossterm>PARALLEL_MAKE</glossterm> | ||
| 2171 | <glossdef> | ||
| 2172 | <para>Specifies extra options that are passed to the <filename>make</filename> command during the | ||
| 2173 | compile tasks. | ||
| 2174 | This variable is usually in the form <filename>-j 4</filename>, where the number | ||
| 2175 | represents the maximum number of parallel threads make can run. | ||
| 2176 | If you development host supports multiple cores a good rule of thumb is to set | ||
| 2177 | this variable to twice the number of cores on the host.</para> | ||
| 2178 | </glossdef> | ||
| 2179 | </glossentry> | ||
| 2180 | |||
| 2181 | <glossentry id='var-PF'><glossterm>PF</glossterm> | ||
| 2182 | <glossdef> | ||
| 2183 | <para>Specifies the recipe or package name and includes all version and revision | ||
| 2184 | numbers (i.e. <filename>eglibc-2.13-r20+svnr15508/</filename> and | ||
| 2185 | <filename>bash-4.2-r1/</filename>). | ||
| 2186 | This variable is comprised of the following: | ||
| 2187 | <literallayout class='monospaced'> | ||
| 2188 | ${PN}-${EXTENDPE}${PV}-${PR} | ||
| 2189 | </literallayout></para> | ||
| 2190 | </glossdef> | ||
| 2191 | </glossentry> | ||
| 2192 | |||
| 2193 | <glossentry id='var-PN'><glossterm>PN</glossterm> | ||
| 2194 | <glossdef> | ||
| 2195 | <para>This variable can have two separate functions depending on the context: a recipe | ||
| 2196 | name or a resulting package name.</para> | ||
| 2197 | <para><filename>PN</filename> refers to a recipe name in the context of a file used | ||
| 2198 | by the OpenEmbedded build system as input to create a package. | ||
| 2199 | The name is normally extracted from the recipe file name. | ||
| 2200 | For example, if the recipe is named | ||
| 2201 | <filename>expat_2.0.1.bb</filename>, then the default value of <filename>PN</filename> | ||
| 2202 | will be "expat".</para> | ||
| 2203 | <para> | ||
| 2204 | The variable refers to a package name in the context of a file created or produced by the | ||
| 2205 | OpenEmbedded build system.</para> | ||
| 2206 | <para>If applicable, the <filename>PN</filename> variable also contains any special | ||
| 2207 | suffix or prefix. | ||
| 2208 | For example, using <filename>bash</filename> to build packages for the native | ||
| 2209 | machine, <filename>PN</filename> is <filename>bash-native</filename>. | ||
| 2210 | Using <filename>bash</filename> to build packages for the target and for Multilib, | ||
| 2211 | <filename>PN</filename> would be <filename>bash</filename> and | ||
| 2212 | <filename>lib64-bash</filename>, respectively. | ||
| 2213 | </para> | ||
| 2214 | </glossdef> | ||
| 2215 | </glossentry> | ||
| 2216 | |||
| 2217 | <glossentry id='var-PR'><glossterm>PR</glossterm> | ||
| 2218 | <glossdef> | ||
| 2219 | <para>The revision of the recipe. | ||
| 2220 | The default value for this variable is "r0". | ||
| 2221 | </para> | ||
| 2222 | </glossdef> | ||
| 2223 | </glossentry> | ||
| 2224 | |||
| 2225 | <glossentry id='var-PRINC'><glossterm>PRINC</glossterm> | ||
| 2226 | <glossdef> | ||
| 2227 | <para>Causes the <filename>PR</filename> variable of | ||
| 2228 | <filename>.bbappend</filename> files to dynamically increment. | ||
| 2229 | This increment minimizes the impact of layer ordering.</para> | ||
| 2230 | <para>In order to ensure multiple <filename>.bbappend</filename> files can co-exist, | ||
| 2231 | <filename>PRINC</filename> should be self referencing. | ||
| 2232 | This variable defaults to 0.</para> | ||
| 2233 | <para>Following is an example that increments <filename>PR</filename> by two: | ||
| 2234 | <literallayout class='monospaced'> | ||
| 2235 | PRINC := "${@int(PRINC) + 2}" | ||
| 2236 | </literallayout> | ||
| 2237 | It is adviseable not to use strings such as ".= '.1'" with the variable because | ||
| 2238 | this usage is very sensitive to layer ordering. | ||
| 2239 | Explicit assignments should be avoided as they cannot adequately represent multiple | ||
| 2240 | <filename>.bbappend</filename> files.</para> | ||
| 2241 | </glossdef> | ||
| 2242 | </glossentry> | ||
| 2243 | |||
| 2244 | <glossentry id='var-PV'><glossterm>PV</glossterm> | ||
| 2245 | <glossdef> | ||
| 2246 | <para>The version of the recipe. | ||
| 2247 | The version is normally extracted from the recipe filename. | ||
| 2248 | For example, if the recipe is named | ||
| 2249 | <filename>expat_2.0.1.bb</filename>, then the default value of <filename>PV</filename> | ||
| 2250 | will be "2.0.1". | ||
| 2251 | <filename>PV</filename> is generally not overridden within | ||
| 2252 | a recipe unless it is building an unstable (i.e. development) version from a source code repository | ||
| 2253 | (e.g. Git or Subversion). | ||
| 2254 | </para> | ||
| 2255 | </glossdef> | ||
| 2256 | </glossentry> | ||
| 2257 | |||
| 2258 | <glossentry id='var-PE'><glossterm>PE</glossterm> | ||
| 2259 | <glossdef> | ||
| 2260 | <para> | ||
| 2261 | the epoch of the recipe. | ||
| 2262 | The default value is "0". | ||
| 2263 | The field is used to make upgrades possible when the versioning scheme changes in | ||
| 2264 | some backwards incompatible way. | ||
| 2265 | </para> | ||
| 2266 | </glossdef> | ||
| 2267 | </glossentry> | ||
| 2268 | |||
| 2269 | <glossentry id='var-PREFERRED_PROVIDER'><glossterm>PREFERRED_PROVIDER</glossterm> | ||
| 2270 | <glossdef> | ||
| 2271 | <para> | ||
| 2272 | If multiple recipes provide an item, this variable | ||
| 2273 | determines which recipe should be given preference. | ||
| 2274 | The variable must always be suffixed with the name of the | ||
| 2275 | provided item, and should be set to the | ||
| 2276 | <filename>PN</filename> of the recipe | ||
| 2277 | to which you want to give precedence. | ||
| 2278 | Here is an example: | ||
| 2279 | <literallayout class='monospaced'> | ||
| 2280 | PREFERRED_PROVIDER_virtual/xserver = "xserver-xf86" | ||
| 2281 | </literallayout> | ||
| 2282 | </para> | ||
| 2283 | </glossdef> | ||
| 2284 | </glossentry> | ||
| 2285 | |||
| 2286 | <glossentry id='var-PREFERRED_VERSION'><glossterm>PREFERRED_VERSION</glossterm> | ||
| 2287 | <glossdef> | ||
| 2288 | <para> | ||
| 2289 | If there are multiple versions of recipes available, this | ||
| 2290 | variable determines which recipe should be given preference. | ||
| 2291 | The variable must always be suffixed with the <filename>PN</filename> | ||
| 2292 | for which to select, and should be set to the | ||
| 2293 | <filename>PV</filename> to which you want to give precedence. | ||
| 2294 | You can use the "<filename>%</filename>" character as a wildcard | ||
| 2295 | to match any number of characters, which can be useful when | ||
| 2296 | specifying versions that contain long revision number that could | ||
| 2297 | potentially change. | ||
| 2298 | Here are two examples: | ||
| 2299 | <literallayout class='monospaced'> | ||
| 2300 | PREFERRED_VERSION_python = "2.6.6" | ||
| 2301 | PREFERRED_VERSION_linux-yocto = "3.0+git%" | ||
| 2302 | </literallayout> | ||
| 2303 | </para> | ||
| 2304 | </glossdef> | ||
| 2305 | </glossentry> | ||
| 2306 | |||
| 2307 | </glossdiv> | ||
| 2308 | |||
| 2309 | <!-- <glossdiv id='var-glossary-q'><title>Q</title>--> | ||
| 2310 | <!-- </glossdiv>--> | ||
| 2311 | |||
| 2312 | <glossdiv id='var-glossary-r'><title>R</title> | ||
| 2313 | |||
| 2314 | <glossentry id='var-RCONFLICTS'><glossterm>RCONFLICTS</glossterm> | ||
| 2315 | <glossdef> | ||
| 2316 | <para>The list of packages that conflict with a package. | ||
| 2317 | Note that the package will not be installed if the conflicting packages are not | ||
| 2318 | first removed.</para> | ||
| 2319 | <para> | ||
| 2320 | Like all package-controlling variables, you must always use them in | ||
| 2321 | conjunction with a package name override. | ||
| 2322 | Here is an example: | ||
| 2323 | <literallayout class='monospaced'> | ||
| 2324 | RCONFLICTS_${PN} = "another-conflicting-package-name" | ||
| 2325 | </literallayout> | ||
| 2326 | </para> | ||
| 2327 | </glossdef> | ||
| 2328 | </glossentry> | ||
| 2329 | |||
| 2330 | <glossentry id='var-RDEPENDS'><glossterm>RDEPENDS</glossterm> | ||
| 2331 | <glossdef> | ||
| 2332 | <para> | ||
| 2333 | Lists a package's run-time dependencies (i.e. other packages) | ||
| 2334 | that must be installed for the package to be built. | ||
| 2335 | In other words, in order for the package to be built and | ||
| 2336 | run correctly, it depends on the listed packages. | ||
| 2337 | If a package in this list cannot be found, it is probable | ||
| 2338 | that a dependency error would occur before the build. | ||
| 2339 | </para> | ||
| 2340 | |||
| 2341 | <para> | ||
| 2342 | The names of the variables you list with | ||
| 2343 | <filename>RDEPENDS</filename> must be the names of other | ||
| 2344 | packages as listed in the | ||
| 2345 | <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link> | ||
| 2346 | variable. | ||
| 2347 | You should not list recipe names (<filename>PN</filename>). | ||
| 2348 | </para> | ||
| 2349 | |||
| 2350 | <para> | ||
| 2351 | Because the <filename>RDEPENDS</filename> variable applies | ||
| 2352 | to packages being built, you should | ||
| 2353 | always attach a package name to the variable to specify the | ||
| 2354 | particular run-time package that has the dependency. | ||
| 2355 | For example, suppose you are building a development package | ||
| 2356 | that depends on the <filename>perl</filename> package. | ||
| 2357 | In this case, you would use the following | ||
| 2358 | <filename>RDEPENDS</filename> statement: | ||
| 2359 | <literallayout class='monospaced'> | ||
| 2360 | RDEPENDS_${PN}-dev += "perl" | ||
| 2361 | </literallayout> | ||
| 2362 | In the example, the package name | ||
| 2363 | (<filename>${PN}-dev</filename>) must appear as it would | ||
| 2364 | in the | ||
| 2365 | <filename><link linkend='var-PACKAGES'>PACKAGES</link></filename> | ||
| 2366 | namespace before any renaming of the output package by | ||
| 2367 | classes like <filename>debian.bbclass</filename>. | ||
| 2368 | </para> | ||
| 2369 | |||
| 2370 | <para> | ||
| 2371 | In many cases you do not need to explicitly add dependencies | ||
| 2372 | to <filename>RDEPENDS</filename> since some automatic | ||
| 2373 | handling occurs: | ||
| 2374 | <itemizedlist> | ||
| 2375 | <listitem><para><emphasis><filename>shlibdeps</filename></emphasis>: If | ||
| 2376 | a run-time package contains a shared library | ||
| 2377 | (<filename>.so</filename>), the build | ||
| 2378 | processes the library in order to determine other | ||
| 2379 | libraries to which it is dynamically linked. | ||
| 2380 | The build process adds these libraries to | ||
| 2381 | <filename>RDEPENDS</filename> when creating the run-time | ||
| 2382 | package.</para></listitem> | ||
| 2383 | <listitem><para><emphasis><filename>pcdeps</filename></emphasis>: If | ||
| 2384 | the package ships a <filename>pkg-config</filename> | ||
| 2385 | information file, the build process uses this file | ||
| 2386 | to add items to the <filename>RDEPENDS</filename> | ||
| 2387 | variable to create the run-time packages. | ||
| 2388 | </para></listitem> | ||
| 2389 | </itemizedlist> | ||
| 2390 | </para> | ||
| 2391 | </glossdef> | ||
| 2392 | </glossentry> | ||
| 2393 | |||
| 2394 | <glossentry id='var-RRECOMMENDS'><glossterm>RRECOMMENDS</glossterm> | ||
| 2395 | <glossdef> | ||
| 2396 | <para> | ||
| 2397 | A list of packages that extend the usability of a package being | ||
| 2398 | built. | ||
| 2399 | The package being built does not depend on this list of packages in | ||
| 2400 | order to successfully build, but needs them for the extended usability. | ||
| 2401 | To specify runtime dependencies for packages, see the | ||
| 2402 | <filename><link linkend='var-RDEPENDS'>RDEPENDS</link></filename> variable. | ||
| 2403 | </para> | ||
| 2404 | <para> | ||
| 2405 | The OpenEmbedded build process automatically installs the list of packages | ||
| 2406 | as part of the built package. | ||
| 2407 | However, you can remove them later if you want. | ||
| 2408 | If, during the build, a package from the list cannot be found, the build | ||
| 2409 | process continues without an error. | ||
| 2410 | </para> | ||
| 2411 | <para> | ||
| 2412 | Because the <filename>RRECOMMENDS</filename> variable applies to packages | ||
| 2413 | being built, you should | ||
| 2414 | always attach an override to the variable to specify the particular package | ||
| 2415 | whose usability is being extended. | ||
| 2416 | For example, suppose you are building a development package that is extended | ||
| 2417 | to support wireless functionality. | ||
| 2418 | In this case, you would use the following: | ||
| 2419 | <literallayout class='monospaced'> | ||
| 2420 | RRECOMMENDS_${PN}-dev += "<wireless_package_name>" | ||
| 2421 | </literallayout> | ||
| 2422 | In the example, the package name (<filename>${PN}-dev</filename>) must | ||
| 2423 | appear as it would in the | ||
| 2424 | <filename><link linkend='var-PACKAGES'>PACKAGES</link></filename> namespace before any | ||
| 2425 | renaming of the output package by classes like <filename>debian.bbclass</filename>. | ||
| 2426 | </para> | ||
| 2427 | </glossdef> | ||
| 2428 | </glossentry> | ||
| 2429 | |||
| 2430 | <glossentry id='var-RREPLACES'><glossterm>RREPLACES</glossterm> | ||
| 2431 | <glossdef> | ||
| 2432 | <para>The list of packages that are replaced with this package.</para> | ||
| 2433 | </glossdef> | ||
| 2434 | </glossentry> | ||
| 2435 | |||
| 2436 | </glossdiv> | ||
| 2437 | |||
| 2438 | <glossdiv id='var-glossary-s'><title>S</title> | ||
| 2439 | |||
| 2440 | <glossentry id='var-S'><glossterm>S</glossterm> | ||
| 2441 | <glossdef> | ||
| 2442 | <para> | ||
| 2443 | The location in the <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink> | ||
| 2444 | where unpacked package source code resides. | ||
| 2445 | This location is within the working directory | ||
| 2446 | (<filename><link linkend='var-WORKDIR'>WORKDIR</link></filename>), which | ||
| 2447 | is not static. | ||
| 2448 | The unpacked source location depends on the package name | ||
| 2449 | (<filename><link linkend='var-PN'>PN</link></filename>) and | ||
| 2450 | package version (<filename><link linkend='var-PV'>PV</link></filename>) as | ||
| 2451 | follows: | ||
| 2452 | <literallayout class='monospaced'> | ||
| 2453 | ${WORKDIR}/${PN}/${PV} | ||
| 2454 | </literallayout> | ||
| 2455 | As an example, assume a | ||
| 2456 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink> top-level | ||
| 2457 | folder named <filename>poky</filename> | ||
| 2458 | and a default <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink> | ||
| 2459 | at <filename>poky/build</filename>. | ||
| 2460 | In this case, the working directory the build system uses to build | ||
| 2461 | the <filename>db</filename> package is the following: | ||
| 2462 | <literallayout class='monospaced'> | ||
| 2463 | ~/poky/build/tmp/work/qemux86-poky-linux/db/5.1.19-r3/db-5.1.19 | ||
| 2464 | </literallayout> | ||
| 2465 | </para> | ||
| 2466 | </glossdef> | ||
| 2467 | </glossentry> | ||
| 2468 | |||
| 2469 | <glossentry id='var-SDKIMAGE_FEATURES'><glossterm>SDKIMAGE_FEATURES</glossterm> | ||
| 2470 | <glossdef> | ||
| 2471 | <para>Equivalent to | ||
| 2472 | <filename><link linkend='var-IMAGE_FEATURES'>IMAGE_FEATURES</link></filename>. | ||
| 2473 | However, this variable applies to the SDK generated from an image using | ||
| 2474 | <filename>bitbake -c populate_sdk imagename</filename>). | ||
| 2475 | </para> | ||
| 2476 | </glossdef> | ||
| 2477 | </glossentry> | ||
| 2478 | |||
| 2479 | <glossentry id='var-SECTION'><glossterm>SECTION</glossterm> | ||
| 2480 | <glossdef> | ||
| 2481 | <para>The section in which packages should be categorized. | ||
| 2482 | Package management utilities can make use of this variable.</para> | ||
| 2483 | </glossdef> | ||
| 2484 | </glossentry> | ||
| 2485 | |||
| 2486 | <glossentry id='var-SELECTED_OPTIMIZATION'><glossterm>SELECTED_OPTIMIZATION</glossterm> | ||
| 2487 | <glossdef> | ||
| 2488 | <para> | ||
| 2489 | The variable takes the value of | ||
| 2490 | <filename><link linkend='var-FULL_OPTIMIZATION'>FULL_OPTIMIZATION</link></filename> | ||
| 2491 | unless <filename><link linkend='var-DEBUG_BUILD'>DEBUG_BUILD</link></filename> = "1". | ||
| 2492 | In this case the value of | ||
| 2493 | <filename><link linkend='var-DEBUG_OPTIMIZATION'>DEBUG_OPTIMIZATION</link></filename> is used. | ||
| 2494 | </para> | ||
| 2495 | </glossdef> | ||
| 2496 | </glossentry> | ||
| 2497 | |||
| 2498 | |||
| 2499 | <glossentry id='var-SERIAL_CONSOLE'><glossterm>SERIAL_CONSOLE</glossterm> | ||
| 2500 | <glossdef> | ||
| 2501 | <para>The speed and device for the serial port used to attach the serial console. | ||
| 2502 | This variable is given to the kernel as the "console" | ||
| 2503 | parameter and after booting occurs <filename>getty</filename> is started on that port | ||
| 2504 | so remote login is possible.</para> | ||
| 2505 | </glossdef> | ||
| 2506 | </glossentry> | ||
| 2507 | |||
| 2508 | <glossentry id='var-SITEINFO_ENDIANNESS'><glossterm>SITEINFO_ENDIANNESS</glossterm> | ||
| 2509 | <glossdef> | ||
| 2510 | <para> | ||
| 2511 | Specifies the endian byte order of the target system. | ||
| 2512 | The value should be either "le" for little-endian or "be" for big-endian. | ||
| 2513 | </para> | ||
| 2514 | </glossdef> | ||
| 2515 | </glossentry> | ||
| 2516 | |||
| 2517 | <glossentry id='var-SITEINFO_BITS'><glossterm>SITEINFO_BITS</glossterm> | ||
| 2518 | <glossdef> | ||
| 2519 | <para> | ||
| 2520 | Specifies the number of bits for the target system CPU. | ||
| 2521 | The value should be either "32" or "64". | ||
| 2522 | </para> | ||
| 2523 | </glossdef> | ||
| 2524 | </glossentry> | ||
| 2525 | |||
| 2526 | <glossentry id='var-SPECIAL_PKGSUFFIX'><glossterm>SPECIAL_PKGSUFFIX</glossterm> | ||
| 2527 | <glossdef> | ||
| 2528 | <para> | ||
| 2529 | A list of prefixes for <link linkend='var-PN'><filename>PN</filename></link> used by the | ||
| 2530 | OpenEmbedded build system to create variants of recipes or packages. | ||
| 2531 | The list specifies the prefixes to strip off during certain circumstances | ||
| 2532 | such as the generation of the <link linkend='var-BPN'><filename>BPN</filename></link> variable. | ||
| 2533 | </para> | ||
| 2534 | </glossdef> | ||
| 2535 | </glossentry> | ||
| 2536 | |||
| 2537 | <glossentry id='var-SRC_URI'><glossterm>SRC_URI</glossterm> | ||
| 2538 | <glossdef> | ||
| 2539 | <para>The list of source files - local or remote. | ||
| 2540 | This variable tells the OpenEmbedded build system which bits to pull | ||
| 2541 | in for the build and how to pull them in. | ||
| 2542 | For example, if the recipe only needs to fetch a tarball from the | ||
| 2543 | internet, the recipe uses a single <filename>SRC_URI</filename> entry. | ||
| 2544 | On the other hand, if the recipe needs to fetch a tarball, apply | ||
| 2545 | two patches, and include a custom file, the recipe would include four | ||
| 2546 | instances of the variable.</para> | ||
| 2547 | <para>The following list explains the available URI protocols: | ||
| 2548 | <itemizedlist> | ||
| 2549 | <listitem><para><emphasis><filename>file://</filename> -</emphasis> Fetches files, which is usually | ||
| 2550 | a file shipped with the metadata, from the local machine. | ||
| 2551 | The path is relative to the | ||
| 2552 | <link linkend='var-FILESPATH'><filename>FILESPATH</filename></link> | ||
| 2553 | variable. | ||
| 2554 | Thus, the build system searches, in order, from the following directories, | ||
| 2555 | which are assumed to be a subdirectories of the directory in which the | ||
| 2556 | recipe file resides: | ||
| 2557 | <itemizedlist> | ||
| 2558 | <listitem><para><emphasis><filename>${PN}</filename> -</emphasis> The recipe name | ||
| 2559 | with any special suffix or prefix, if applicable. | ||
| 2560 | For example, using <filename>bash</filename> to build for the native | ||
| 2561 | machine, <filename>PN</filename> is <filename>bash-native</filename>. | ||
| 2562 | Using <filename>bash</filename> to build for the target and for Multilib, | ||
| 2563 | <filename>PN</filename> would be <filename>bash</filename> and | ||
| 2564 | <filename>lib64-bash</filename>, respectively. | ||
| 2565 | </para></listitem> | ||
| 2566 | <listitem><para><emphasis><filename>${PF}</filename> - </emphasis> | ||
| 2567 | <filename>${PN}-${EXTENDPE}${PV}-${PR}</filename>. | ||
| 2568 | The recipe name including all version and revision numbers | ||
| 2569 | (i.e. <filename>eglibc-2.13-r20+svnr15508/</filename> and | ||
| 2570 | <filename>bash-4.2-r1/</filename>).</para></listitem> | ||
| 2571 | <listitem><para><emphasis><filename>${P}</filename> -</emphasis> | ||
| 2572 | <filename>${PN}-${PV}</filename>. | ||
| 2573 | The recipe name and version (i.e. <filename>bash-4.2</filename>). | ||
| 2574 | </para></listitem> | ||
| 2575 | <listitem><para><emphasis><filename>${BPN}</filename> -</emphasis> The | ||
| 2576 | base recipe name without any special suffix or version numbers. | ||
| 2577 | </para></listitem> | ||
| 2578 | <listitem><para><emphasis><filename>${BP}</filename> -</emphasis> | ||
| 2579 | <filename>${BPN}-${PV}</filename>. | ||
| 2580 | The base recipe name and version but without any special | ||
| 2581 | package name suffix.</para></listitem> | ||
| 2582 | <listitem><para><emphasis>Files -</emphasis> Files beneath the directory in which the recipe | ||
| 2583 | resides.</para></listitem> | ||
| 2584 | <listitem><para><emphasis>Directory -</emphasis> The directory itself in which the recipe | ||
| 2585 | resides.</para></listitem> | ||
| 2586 | </itemizedlist></para></listitem> | ||
| 2587 | <listitem><para><emphasis><filename>bzr://</filename> -</emphasis> Fetches files from a | ||
| 2588 | Bazaar revision control repository.</para></listitem> | ||
| 2589 | <listitem><para><emphasis><filename>git://</filename> -</emphasis> Fetches files from a | ||
| 2590 | Git revision control repository.</para></listitem> | ||
| 2591 | <listitem><para><emphasis><filename>osc://</filename> -</emphasis> Fetches files from | ||
| 2592 | an OSC (OpenSuse Build service) revision control repository.</para></listitem> | ||
| 2593 | <listitem><para><emphasis><filename>repo://</filename> -</emphasis> Fetches files from | ||
| 2594 | a repo (Git) repository.</para></listitem> | ||
| 2595 | <listitem><para><emphasis><filename>svk://</filename> -</emphasis> Fetches files from | ||
| 2596 | an SVK revision control repository.</para></listitem> | ||
| 2597 | <listitem><para><emphasis><filename>http://</filename> -</emphasis> Fetches files from | ||
| 2598 | the Internet using <filename>http</filename>.</para></listitem> | ||
| 2599 | <listitem><para><emphasis><filename>https://</filename> -</emphasis> Fetches files | ||
| 2600 | from the Internet using <filename>https</filename>.</para></listitem> | ||
| 2601 | <listitem><para><emphasis><filename>ftp://</filename> -</emphasis> Fetches files | ||
| 2602 | from the Internet using <filename>ftp</filename>.</para></listitem> | ||
| 2603 | <listitem><para><emphasis><filename>cvs://</filename> -</emphasis> Fetches files from | ||
| 2604 | a CVS revision control repository.</para></listitem> | ||
| 2605 | <listitem><para><emphasis><filename>hg://</filename> -</emphasis> Fetches files from | ||
| 2606 | a Mercurial (<filename>hg</filename>) revision control repository.</para></listitem> | ||
| 2607 | <listitem><para><emphasis><filename>p4://</filename> -</emphasis> Fetches files from | ||
| 2608 | a Perforce (<filename>p4</filename>) revision control repository.</para></listitem> | ||
| 2609 | <listitem><para><emphasis><filename>ssh://</filename> -</emphasis> Fetches files from | ||
| 2610 | a secure shell.</para></listitem> | ||
| 2611 | <listitem><para><emphasis><filename>svn://</filename> -</emphasis> Fetches files from | ||
| 2612 | a Subversion (<filename>svn</filename>) revision control repository.</para></listitem> | ||
| 2613 | </itemizedlist> | ||
| 2614 | </para> | ||
| 2615 | <para>Standard and recipe-specific options for <filename>SRC_URI</filename> exist. | ||
| 2616 | Here are standard options: | ||
| 2617 | <itemizedlist> | ||
| 2618 | <listitem><para><emphasis><filename>apply</filename> -</emphasis> Whether to apply | ||
| 2619 | the patch or not. | ||
| 2620 | The default action is to apply the patch.</para></listitem> | ||
| 2621 | <listitem><para><emphasis><filename>striplevel</filename> -</emphasis> Which | ||
| 2622 | striplevel to use when applying the patch. | ||
| 2623 | The default level is 1.</para></listitem> | ||
| 2624 | </itemizedlist> | ||
| 2625 | </para> | ||
| 2626 | <para>Here are options specific to recipes building code from a revision control system: | ||
| 2627 | <itemizedlist> | ||
| 2628 | <listitem><para><emphasis><filename>mindate</filename> -</emphasis> Only applies | ||
| 2629 | the patch if <link linkend='var-SRCDATE'><filename>SRCDATE</filename></link> | ||
| 2630 | is equal to or greater than <filename>mindate</filename>.</para></listitem> | ||
| 2631 | <listitem><para><emphasis><filename>maxdate</filename> -</emphasis> Only applies | ||
| 2632 | the patch if <link linkend='var-SRCDATE'><filename>SRCDATE</filename></link> | ||
| 2633 | is not later than <filename>mindate</filename>.</para></listitem> | ||
| 2634 | <listitem><para><emphasis><filename>minrev</filename> -</emphasis> Only applies | ||
| 2635 | the patch if <link linkend='var-SRCREV'><filename>SRCREV</filename></link> | ||
| 2636 | is equal to or greater than <filename>minrev</filename>.</para></listitem> | ||
| 2637 | <listitem><para><emphasis><filename>maxrev</filename> -</emphasis> Only applies | ||
| 2638 | the patch if <link linkend='var-SRCREV'><filename>SRCREV</filename></link> | ||
| 2639 | is not later than <filename>maxrev</filename>.</para></listitem> | ||
| 2640 | <listitem><para><emphasis><filename>rev</filename> -</emphasis> Only applies the | ||
| 2641 | patch if <link linkend='var-SRCREV'><filename>SRCREV</filename></link> | ||
| 2642 | is equal to <filename>rev</filename>.</para></listitem> | ||
| 2643 | <listitem><para><emphasis><filename>notrev</filename> -</emphasis> Only applies | ||
| 2644 | the patch if <link linkend='var-SRCREV'><filename>SRCREV</filename></link> | ||
| 2645 | is not equal to <filename>rev</filename>.</para></listitem> | ||
| 2646 | </itemizedlist> | ||
| 2647 | </para> | ||
| 2648 | <para>Here are some additional options worth mentioning: | ||
| 2649 | <itemizedlist> | ||
| 2650 | <listitem><para><emphasis><filename>unpack</filename> -</emphasis> Controls | ||
| 2651 | whether or not to unpack the file if it is an archive. | ||
| 2652 | The default action is to upack the file.</para></listitem> | ||
| 2653 | <listitem><para><emphasis><filename>subdir</filename> -</emphasis> Places the file | ||
| 2654 | (or extracts its contents) into the specified | ||
| 2655 | subdirectory of <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>. | ||
| 2656 | This option is useful for unusual tarballs or other archives that | ||
| 2657 | don't have their files already in a subdirectory within the archive. | ||
| 2658 | </para></listitem> | ||
| 2659 | <listitem><para><emphasis><filename>name</filename> -</emphasis> Specifies a | ||
| 2660 | name to be used for association with <filename>SRC_URI</filename> checksums | ||
| 2661 | when you have more than one file specified in <filename>SRC_URI</filename>. | ||
| 2662 | </para></listitem> | ||
| 2663 | <listitem><para><emphasis><filename>downloadfilename</filename> -</emphasis> Specifies | ||
| 2664 | the filename used when storing the downloaded file.</para></listitem> | ||
| 2665 | </itemizedlist> | ||
| 2666 | </para> | ||
| 2667 | </glossdef> | ||
| 2668 | </glossentry> | ||
| 2669 | |||
| 2670 | <glossentry id='var-SRC_URI_OVERRIDES_PACKAGE_ARCH'><glossterm>SRC_URI_OVERRIDES_PACKAGE_ARCH</glossterm> | ||
| 2671 | <glossdef> | ||
| 2672 | <para></para> | ||
| 2673 | <para> | ||
| 2674 | By default, the OpenEmbedded build system automatically detects whether | ||
| 2675 | <filename><link linkend='var-SRC_URI'>SRC_URI</link></filename> | ||
| 2676 | contains files that are machine-specific. | ||
| 2677 | If so, the build system automatically changes | ||
| 2678 | <filename><link linkend='var-PACKAGE_ARCH'>PACKAGE_ARCH</link></filename>. | ||
| 2679 | Setting this variable to "0" disables this behavior. | ||
| 2680 | </para> | ||
| 2681 | </glossdef> | ||
| 2682 | </glossentry> | ||
| 2683 | |||
| 2684 | <glossentry id='var-SRCDATE'><glossterm>SRCDATE</glossterm> | ||
| 2685 | <glossdef> | ||
| 2686 | <para> | ||
| 2687 | The date of the source code used to build the package. | ||
| 2688 | This variable applies only if the source was fetched from a Source Code Manager (SCM). | ||
| 2689 | </para> | ||
| 2690 | </glossdef> | ||
| 2691 | </glossentry> | ||
| 2692 | |||
| 2693 | <glossentry id='var-SRCREV'><glossterm>SRCREV</glossterm> | ||
| 2694 | <glossdef> | ||
| 2695 | <para> | ||
| 2696 | The revision of the source code used to build the package. | ||
| 2697 | This variable applies to Subversion, Git, Mercurial and Bazaar | ||
| 2698 | only. | ||
| 2699 | Note that if you wish to build a fixed revision and you wish | ||
| 2700 | to avoid performing a query on the remote repository every time | ||
| 2701 | BitBake parses your recipe, you should specify a <filename>SRCREV</filename> that is a | ||
| 2702 | full revision identifier and not just a tag. | ||
| 2703 | </para> | ||
| 2704 | </glossdef> | ||
| 2705 | </glossentry> | ||
| 2706 | |||
| 2707 | <glossentry id='var-SSTATE_DIR'><glossterm>SSTATE_DIR</glossterm> | ||
| 2708 | <glossdef> | ||
| 2709 | <para>The directory for the shared state.</para> | ||
| 2710 | </glossdef> | ||
| 2711 | </glossentry> | ||
| 2712 | |||
| 2713 | <glossentry id='var-SSTATE_MIRRORS'><glossterm>SSTATE_MIRRORS</glossterm> | ||
| 2714 | <glossdef> | ||
| 2715 | <para> | ||
| 2716 | Configures the OpenEmbedded build system to search other | ||
| 2717 | mirror locations for prebuilt cache data objects before | ||
| 2718 | building out the data. | ||
| 2719 | This variable works like fetcher | ||
| 2720 | <filename>MIRRORS</filename>/<filename>PREMIRRORS</filename> | ||
| 2721 | and points to the cache locations to check for the shared | ||
| 2722 | objects. | ||
| 2723 | </para> | ||
| 2724 | |||
| 2725 | <para> | ||
| 2726 | You can specify a filesystem directory or a remote URL such | ||
| 2727 | as HTTP or FTP. | ||
| 2728 | The locations you specify need to contain the shared state | ||
| 2729 | cache (sstate-cache) results from previous builds. | ||
| 2730 | The sstate-cache you point to can also be from builds on | ||
| 2731 | other machines. | ||
| 2732 | </para> | ||
| 2733 | |||
| 2734 | <para> | ||
| 2735 | If a mirror uses the same structure as | ||
| 2736 | <link linkend='var-SSTATE_DIR'><filename>SSTATE_DIR</filename></link>, | ||
| 2737 | you need to add | ||
| 2738 | "PATH" at the end as shown in the examples below. | ||
| 2739 | The build system substitues the correct path within the | ||
| 2740 | directory structure. | ||
| 2741 | <literallayout class='monospaced'> | ||
| 2742 | SSTATE_MIRRORS ?= "\ | ||
| 2743 | file://.* http://someserver.tld/share/sstate/PATH \n \ | ||
| 2744 | file://.* file:///some/local/dir/sstate/PATH" | ||
| 2745 | </literallayout> | ||
| 2746 | </para> | ||
| 2747 | </glossdef> | ||
| 2748 | </glossentry> | ||
| 2749 | |||
| 2750 | <glossentry id='var-STAGING_KERNEL_DIR'><glossterm>STAGING_KERNEL_DIR</glossterm> | ||
| 2751 | <glossdef> | ||
| 2752 | <para> | ||
| 2753 | The directory with kernel headers that are required to build out-of-tree | ||
| 2754 | modules. | ||
| 2755 | </para> | ||
| 2756 | </glossdef> | ||
| 2757 | </glossentry> | ||
| 2758 | |||
| 2759 | <glossentry id='var-STAMP'><glossterm>STAMP</glossterm> | ||
| 2760 | <glossdef> | ||
| 2761 | <para> | ||
| 2762 | Specifies the base path used to create recipe stamp files. | ||
| 2763 | The path to an actual stamp file is constructed by evaluating this | ||
| 2764 | string and then appending additional information. | ||
| 2765 | Currently, the default assignment for <filename>STAMP</filename> | ||
| 2766 | as set in the <filename>meta/conf/bitbake.conf</filename> file | ||
| 2767 | is: | ||
| 2768 | <literallayout class='monospaced'> | ||
| 2769 | STAMP = "${TMPDIR}/stamps/${MULTIMACH_TARGET_SYS}/${PN}/${EXTENDPE}${PV}-${PR}" | ||
| 2770 | </literallayout> | ||
| 2771 | See <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>, | ||
| 2772 | <link linkend='var-MULTIMACH_TARGET_SYS'><filename>MULTIMACH_TARGET_SYS</filename></link>, | ||
| 2773 | <link linkend='var-PN'><filename>PN</filename></link>, | ||
| 2774 | <link linkend='var-EXTENDPE'><filename>EXTENDPE</filename></link>, | ||
| 2775 | <link linkend='var-PV'><filename>PV</filename></link>, and | ||
| 2776 | <link linkend='var-PR'><filename>PR</filename></link> for related variable | ||
| 2777 | information. | ||
| 2778 | </para> | ||
| 2779 | </glossdef> | ||
| 2780 | </glossentry> | ||
| 2781 | |||
| 2782 | <glossentry id='var-SUMMARY'><glossterm>SUMMARY</glossterm> | ||
| 2783 | <glossdef> | ||
| 2784 | <para>The short (72 characters or less) summary of the binary package for packaging | ||
| 2785 | systems such as <filename>opkg</filename>, <filename>rpm</filename> or | ||
| 2786 | <filename>dpkg</filename>. | ||
| 2787 | By default, <filename>SUMMARY</filename> is used to define | ||
| 2788 | the <link linkend='var-DESCRIPTION'><filename>DESCRIPTION</filename></link> | ||
| 2789 | variable if <filename>DESCRIPTION</filename> is not set | ||
| 2790 | in the recipe. | ||
| 2791 | </para> | ||
| 2792 | </glossdef> | ||
| 2793 | </glossentry> | ||
| 2794 | |||
| 2795 | </glossdiv> | ||
| 2796 | |||
| 2797 | <glossdiv id='var-glossary-t'><title>T</title> | ||
| 2798 | |||
| 2799 | <glossentry id='var-T'><glossterm>T</glossterm> | ||
| 2800 | <glossdef> | ||
| 2801 | <para>This variable points to a directory were Bitbake places temporary | ||
| 2802 | files when building a particular package. | ||
| 2803 | It is typically set as follows: | ||
| 2804 | <literallayout class='monospaced'> | ||
| 2805 | T = ${WORKDIR}/temp | ||
| 2806 | </literallayout> | ||
| 2807 | The <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link> | ||
| 2808 | is the directory into which Bitbake unpacks and builds the package. | ||
| 2809 | The default <filename>bitbake.conf</filename> file sets this variable.</para> | ||
| 2810 | <para>The <filename>T</filename> variable is not to be confused with | ||
| 2811 | the <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link> variable, | ||
| 2812 | which points to the root of the directory tree where Bitbake | ||
| 2813 | places the output of an entire build. | ||
| 2814 | </para> | ||
| 2815 | </glossdef> | ||
| 2816 | </glossentry> | ||
| 2817 | |||
| 2818 | <glossentry id='var-TARGET_ARCH'><glossterm>TARGET_ARCH</glossterm> | ||
| 2819 | <glossdef> | ||
| 2820 | <para>The architecture of the device being built. | ||
| 2821 | While a number of values are possible, the OpenEmbedded build system primarily supports | ||
| 2822 | <filename>arm</filename> and <filename>i586</filename>.</para> | ||
| 2823 | </glossdef> | ||
| 2824 | </glossentry> | ||
| 2825 | |||
| 2826 | <glossentry id='var-TARGET_CFLAGS'><glossterm>TARGET_CFLAGS</glossterm> | ||
| 2827 | <glossdef> | ||
| 2828 | <para> | ||
| 2829 | Flags passed to the C compiler for the target system. | ||
| 2830 | This variable evaluates to the same as | ||
| 2831 | <filename><link linkend='var-CFLAGS'>CFLAGS</link></filename>. | ||
| 2832 | </para> | ||
| 2833 | </glossdef> | ||
| 2834 | </glossentry> | ||
| 2835 | |||
| 2836 | |||
| 2837 | <glossentry id='var-TARGET_FPU'><glossterm>TARGET_FPU</glossterm> | ||
| 2838 | <glossdef> | ||
| 2839 | <para>Specifies the method for handling FPU code. | ||
| 2840 | For FPU-less targets, which include most ARM CPUs, the variable must be | ||
| 2841 | set to "soft". | ||
| 2842 | If not, the kernel emulation gets used, which results in a performance penalty.</para> | ||
| 2843 | </glossdef> | ||
| 2844 | </glossentry> | ||
| 2845 | |||
| 2846 | <glossentry id='var-TARGET_OS'><glossterm>TARGET_OS</glossterm> | ||
| 2847 | <glossdef> | ||
| 2848 | <para>Specifies the target's operating system. | ||
| 2849 | The variable can be set to "linux" for <filename>eglibc</filename>-based systems and | ||
| 2850 | to "linux-uclibc" for <filename>uclibc</filename>. | ||
| 2851 | For ARM/EABI targets, there are also "linux-gnueabi" and | ||
| 2852 | "linux-uclibc-gnueabi" values possible.</para> | ||
| 2853 | </glossdef> | ||
| 2854 | </glossentry> | ||
| 2855 | |||
| 2856 | <glossentry id='var-TCLIBC'><glossterm>TCLIBC</glossterm> | ||
| 2857 | <glossdef> | ||
| 2858 | <para> | ||
| 2859 | Specifies which variant of the GNU standard C library (<filename>libc</filename>) | ||
| 2860 | to use during the build process. | ||
| 2861 | This variable replaces <filename>POKYLIBC</filename>, which is no longer | ||
| 2862 | supported. | ||
| 2863 | </para> | ||
| 2864 | <para> | ||
| 2865 | You can select <filename>eglibc</filename> or <filename>uclibc</filename>. | ||
| 2866 | <note> | ||
| 2867 | This release of the Yocto Project does not support the | ||
| 2868 | <filename>glibc</filename> implementation of <filename>libc</filename>. | ||
| 2869 | </note> | ||
| 2870 | </para> | ||
| 2871 | </glossdef> | ||
| 2872 | </glossentry> | ||
| 2873 | |||
| 2874 | <glossentry id='var-TCMODE'><glossterm>TCMODE</glossterm> | ||
| 2875 | <glossdef> | ||
| 2876 | <para> | ||
| 2877 | The toolchain selector. | ||
| 2878 | This variable replaces <filename>POKYMODE</filename>, which is no longer | ||
| 2879 | supported. | ||
| 2880 | </para> | ||
| 2881 | <para> | ||
| 2882 | The <filename>TCMODE</filename> variable selects the external toolchain | ||
| 2883 | built using the OpenEmbedded build system or a few supported combinations of | ||
| 2884 | the upstream GCC or CodeSourcery Labs toolchain. | ||
| 2885 | The variable identifies the <filename>tcmode-*</filename> files used in | ||
| 2886 | the <filename>meta/conf/distro/include</filename> directory, which is found in the | ||
| 2887 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 2888 | </para> | ||
| 2889 | <para> | ||
| 2890 | By default, <filename>TCMODE</filename> is set to "default", which | ||
| 2891 | chooses the <filename>tcmode-default.inc</filename> file. | ||
| 2892 | The variable is similar to | ||
| 2893 | <link linkend='var-TCLIBC'><filename>TCLIBC</filename></link>, which controls | ||
| 2894 | the variant of the GNU standard C library (<filename>libc</filename>) | ||
| 2895 | used during the build process: <filename>eglibc</filename> or <filename>uclibc</filename>. | ||
| 2896 | </para> | ||
| 2897 | </glossdef> | ||
| 2898 | </glossentry> | ||
| 2899 | |||
| 2900 | <glossentry id='var-TMPDIR'><glossterm>TMPDIR</glossterm> | ||
| 2901 | <glossdef> | ||
| 2902 | <para> | ||
| 2903 | This variable is the temporary directory the OpenEmbedded build system | ||
| 2904 | uses when it does its work building images. | ||
| 2905 | By default, the <filename>TMPDIR</filename> variable is named | ||
| 2906 | <filename>tmp</filename> within the | ||
| 2907 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>. | ||
| 2908 | </para> | ||
| 2909 | |||
| 2910 | <para> | ||
| 2911 | If you want to establish this directory in a location other than the | ||
| 2912 | default, you can uncomment the following statement in the | ||
| 2913 | <filename>conf/local.conf</filename> file in the | ||
| 2914 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>: | ||
| 2915 | <literallayout class='monospaced'> | ||
| 2916 | #TMPDIR = "${TOPDIR}/tmp" | ||
| 2917 | </literallayout> | ||
| 2918 | </para> | ||
| 2919 | </glossdef> | ||
| 2920 | </glossentry> | ||
| 2921 | |||
| 2922 | <glossentry id='var-TOPDIR'><glossterm>TOPDIR</glossterm> | ||
| 2923 | <glossdef> | ||
| 2924 | <para> | ||
| 2925 | This variable is the | ||
| 2926 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>. | ||
| 2927 | BitBake automatically sets this variable. | ||
| 2928 | The OpenEmbedded build system uses the Build Directory when building images. | ||
| 2929 | </para> | ||
| 2930 | </glossdef> | ||
| 2931 | </glossentry> | ||
| 2932 | |||
| 2933 | </glossdiv> | ||
| 2934 | |||
| 2935 | <!-- <glossdiv id='var-glossary-u'><title>U</title>--> | ||
| 2936 | <!-- </glossdiv>--> | ||
| 2937 | |||
| 2938 | <!-- <glossdiv id='var-glossary-v'><title>V</title>--> | ||
| 2939 | <!-- </glossdiv>--> | ||
| 2940 | |||
| 2941 | <glossdiv id='var-glossary-w'><title>W</title> | ||
| 2942 | |||
| 2943 | <glossentry id='var-WORKDIR'><glossterm>WORKDIR</glossterm> | ||
| 2944 | <glossdef> | ||
| 2945 | <para> | ||
| 2946 | The pathname of the working directory in which the OpenEmbedded build system | ||
| 2947 | builds a recipe. | ||
| 2948 | This directory is located within the | ||
| 2949 | <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link> directory structure and changes | ||
| 2950 | as different packages are built. | ||
| 2951 | </para> | ||
| 2952 | |||
| 2953 | <para> | ||
| 2954 | The actual <filename>WORKDIR</filename> directory depends on several things: | ||
| 2955 | <itemizedlist> | ||
| 2956 | <listitem>The temporary directory - <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link></listitem> | ||
| 2957 | <listitem>The package architecture - <link linkend='var-PACKAGE_ARCH'><filename>PACKAGE_ARCH</filename></link></listitem> | ||
| 2958 | <listitem>The target machine - <link linkend='var-MACHINE'><filename>MACHINE</filename></link></listitem> | ||
| 2959 | <listitem>The target operating system - <link linkend='var-TARGET_OS'><filename>TARGET_OS</filename></link></listitem> | ||
| 2960 | <listitem>The recipe name - <link linkend='var-PN'><filename>PN</filename></link></listitem> | ||
| 2961 | <listitem>The recipe version - <link linkend='var-PV'><filename>PV</filename></link></listitem> | ||
| 2962 | <listitem>The recipe revision - <link linkend='var-PR'><filename>PR</filename></link></listitem> | ||
| 2963 | </itemizedlist> | ||
| 2964 | </para> | ||
| 2965 | |||
| 2966 | <para> | ||
| 2967 | For packages that are not dependent on a particular machine, | ||
| 2968 | <filename>WORKDIR</filename> is defined as follows: | ||
| 2969 | <literallayout class='monospaced'> | ||
| 2970 | ${TMPDIR}/work/${PACKAGE_ARCH}-poky-${TARGET_OS}/${PN}/${PV}-${PR} | ||
| 2971 | </literallayout> | ||
| 2972 | As an example, assume a | ||
| 2973 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink> top-level | ||
| 2974 | folder name <filename>poky</filename> and a default | ||
| 2975 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink> | ||
| 2976 | at <filename>poky/build</filename>. | ||
| 2977 | In this case, the working directory the build system uses to build | ||
| 2978 | the <filename>v86d</filename> package is the following: | ||
| 2979 | <literallayout class='monospaced'> | ||
| 2980 | ~/poky/build/tmp/work/qemux86-poky-linux/v86d/01.9-r0 | ||
| 2981 | </literallayout> | ||
| 2982 | </para> | ||
| 2983 | |||
| 2984 | <para> | ||
| 2985 | For packages that are dependent on a particular machine, <filename>WORKDIR</filename> | ||
| 2986 | is defined slightly different: | ||
| 2987 | <literallayout class='monospaced'> | ||
| 2988 | ${TMPDIR}/work/${MACHINE}-poky-${TARGET_OS}/${PN}/${PV}-${PR} | ||
| 2989 | </literallayout> | ||
| 2990 | As an example, again assume a Source Directory top-level folder | ||
| 2991 | named <filename>poky</filename> and a default Build Directory | ||
| 2992 | at <filename>poky/build</filename>. | ||
| 2993 | In this case, the working directory the build system uses to build | ||
| 2994 | the <filename>acl</filename> recipe, which is being built for a | ||
| 2995 | MIPS-based device, is the following: | ||
| 2996 | <literallayout class='monospaced'> | ||
| 2997 | ~/poky/build/tmp/work/mips-poky-linux/acl/2.2.51-r2 | ||
| 2998 | </literallayout> | ||
| 2999 | </para> | ||
| 3000 | </glossdef> | ||
| 3001 | </glossentry> | ||
| 3002 | |||
| 3003 | </glossdiv> | ||
| 3004 | |||
| 3005 | <!-- <glossdiv id='var-glossary-x'><title>X</title>--> | ||
| 3006 | <!-- </glossdiv>--> | ||
| 3007 | |||
| 3008 | <!-- <glossdiv id='var-glossary-y'><title>Y</title>--> | ||
| 3009 | <!-- </glossdiv>--> | ||
| 3010 | |||
| 3011 | <!-- <glossdiv id='var-glossary-z'><title>Z</title>--> | ||
| 3012 | <!-- </glossdiv>--> | ||
| 3013 | |||
| 3014 | </glossary> | ||
| 3015 | </chapter> | ||
| 3016 | <!-- | ||
| 3017 | vim: expandtab tw=80 ts=4 | ||
| 3018 | --> | ||
diff --git a/documentation/ref-manual/ref-varlocality.xml b/documentation/ref-manual/ref-varlocality.xml new file mode 100644 index 0000000000..ae8f75c2f5 --- /dev/null +++ b/documentation/ref-manual/ref-varlocality.xml | |||
| @@ -0,0 +1,193 @@ | |||
| 1 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <chapter id='ref-varlocality'> | ||
| 6 | <title>Variable Context</title> | ||
| 7 | |||
| 8 | <para> | ||
| 9 | While most variables can be used in almost any context such as | ||
| 10 | <filename>.conf</filename>, <filename>.bbclass</filename>, | ||
| 11 | <filename>.inc</filename>, and <filename>.bb</filename> files, | ||
| 12 | some variables are often associated with a particular locality or context. | ||
| 13 | This chapter describes some common associations. | ||
| 14 | </para> | ||
| 15 | |||
| 16 | <section id='ref-varlocality-configuration'> | ||
| 17 | <title>Configuration</title> | ||
| 18 | |||
| 19 | <para> | ||
| 20 | The following subsections provide lists of variables whose context is | ||
| 21 | configuration: distribution, machine, and local. | ||
| 22 | </para> | ||
| 23 | |||
| 24 | <section id='ref-varlocality-config-distro'> | ||
| 25 | <title>Distribution (Distro)</title> | ||
| 26 | |||
| 27 | <para> | ||
| 28 | This section lists variables whose context is the distribution, or distro. | ||
| 29 | <itemizedlist> | ||
| 30 | <listitem><para><filename><link linkend='var-DISTRO'>DISTRO</link></filename></para></listitem> | ||
| 31 | <listitem><para><filename><link linkend='var-DISTRO_NAME'>DISTRO_NAME</link></filename> | ||
| 32 | </para></listitem> | ||
| 33 | <listitem><para><filename><link linkend='var-DISTRO_VERSION'>DISTRO_VERSION</link> | ||
| 34 | </filename></para></listitem> | ||
| 35 | <listitem><para><filename><link linkend='var-MAINTAINER'>MAINTAINER</link></filename> | ||
| 36 | </para></listitem> | ||
| 37 | <listitem><para><filename><link linkend='var-PACKAGE_CLASSES'>PACKAGE_CLASSES</link> | ||
| 38 | </filename></para></listitem> | ||
| 39 | <listitem><para><filename><link linkend='var-TARGET_OS'>TARGET_OS</link></filename> | ||
| 40 | </para></listitem> | ||
| 41 | <listitem><para><filename><link linkend='var-TARGET_FPU'>TARGET_FPU</link></filename> | ||
| 42 | </para></listitem> | ||
| 43 | <listitem><para><filename><link linkend='var-TCMODE'>TCMODE</link></filename> | ||
| 44 | </para></listitem> | ||
| 45 | <listitem><para><filename><link linkend='var-TCLIBC'>TCLIBC</link></filename> | ||
| 46 | </para></listitem> | ||
| 47 | </itemizedlist> | ||
| 48 | </para> | ||
| 49 | </section> | ||
| 50 | |||
| 51 | <section id='ref-varlocality-config-machine'> | ||
| 52 | <title>Machine</title> | ||
| 53 | |||
| 54 | <para> | ||
| 55 | This section lists variables whose context is the machine. | ||
| 56 | <itemizedlist> | ||
| 57 | <listitem><para><filename><link linkend='var-TARGET_ARCH'>TARGET_ARCH</link></filename> | ||
| 58 | </para></listitem> | ||
| 59 | <listitem><para><filename><link linkend='var-SERIAL_CONSOLE'>SERIAL_CONSOLE</link> | ||
| 60 | </filename></para></listitem> | ||
| 61 | <listitem><para><filename><link linkend='var-PACKAGE_EXTRA_ARCHS'>PACKAGE_EXTRA_ARCHS</link> | ||
| 62 | </filename></para></listitem> | ||
| 63 | <listitem><para><filename><link linkend='var-IMAGE_FSTYPES'>IMAGE_FSTYPES</link> | ||
| 64 | </filename></para></listitem> | ||
| 65 | <listitem><para><filename><link linkend='var-MACHINE_FEATURES'>MACHINE_FEATURES</link> | ||
| 66 | </filename></para></listitem> | ||
| 67 | <listitem><para><filename><link linkend='var-MACHINE_EXTRA_RDEPENDS'>MACHINE_EXTRA_RDEPENDS | ||
| 68 | </link></filename></para></listitem> | ||
| 69 | <listitem><para><filename><link linkend='var-MACHINE_EXTRA_RRECOMMENDS'>MACHINE_EXTRA_RRECOMMENDS | ||
| 70 | </link></filename></para></listitem> | ||
| 71 | <listitem><para><filename><link linkend='var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS'>MACHINE_ESSENTIAL_EXTRA_RDEPENDS | ||
| 72 | </link></filename></para></listitem> | ||
| 73 | <listitem><para><filename><link linkend='var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS'> | ||
| 74 | MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</link></filename></para></listitem> | ||
| 75 | </itemizedlist> | ||
| 76 | </para> | ||
| 77 | </section> | ||
| 78 | |||
| 79 | <section id='ref-varlocality-config-local'> | ||
| 80 | <title>Local</title> | ||
| 81 | |||
| 82 | <para> | ||
| 83 | This section lists variables whose context is the local configuration through the | ||
| 84 | <filename>local.conf</filename> file. | ||
| 85 | <itemizedlist> | ||
| 86 | <listitem><para><filename><link linkend='var-DISTRO'>DISTRO</link></filename> | ||
| 87 | </para></listitem> | ||
| 88 | <listitem><para><filename><link linkend='var-MACHINE'>MACHINE</link></filename> | ||
| 89 | </para></listitem> | ||
| 90 | <listitem><para><filename><link linkend='var-DL_DIR'>DL_DIR</link></filename> | ||
| 91 | </para></listitem> | ||
| 92 | <listitem><para><filename><link linkend='var-BBFILES'>BBFILES</link></filename> | ||
| 93 | </para></listitem> | ||
| 94 | <listitem><para><filename><link linkend='var-EXTRA_IMAGE_FEATURES'>EXTRA_IMAGE_FEATURES | ||
| 95 | </link></filename></para></listitem> | ||
| 96 | <listitem><para><filename><link linkend='var-PACKAGE_CLASSES'>PACKAGE_CLASSES</link> | ||
| 97 | </filename></para></listitem> | ||
| 98 | <listitem><para><filename><link linkend='var-BB_NUMBER_THREADS'>BB_NUMBER_THREADS</link> | ||
| 99 | </filename></para></listitem> | ||
| 100 | <listitem><para><filename><link linkend='var-BBINCLUDELOGS'>BBINCLUDELOGS</link> | ||
| 101 | </filename></para></listitem> | ||
| 102 | <listitem><para><filename><link linkend='var-ENABLE_BINARY_LOCALE_GENERATION'> | ||
| 103 | ENABLE_BINARY_LOCALE_GENERATION</link></filename></para></listitem> | ||
| 104 | </itemizedlist> | ||
| 105 | </para> | ||
| 106 | </section> | ||
| 107 | </section> | ||
| 108 | |||
| 109 | <section id='ref-varlocality-recipes'> | ||
| 110 | <title>Recipes</title> | ||
| 111 | |||
| 112 | <para> | ||
| 113 | The following subsections provide lists of variables whose context is | ||
| 114 | recipes: required, dependencies, path, and extra build information. | ||
| 115 | </para> | ||
| 116 | |||
| 117 | <section id='ref-varlocality-recipe-required'> | ||
| 118 | <title>Required</title> | ||
| 119 | |||
| 120 | <para> | ||
| 121 | This section lists variables that are required for recipes. | ||
| 122 | <itemizedlist> | ||
| 123 | <listitem><para><filename><link linkend='var-LICENSE'>LICENSE</link> | ||
| 124 | </filename></para></listitem> | ||
| 125 | <listitem><para><filename><link linkend='var-LIC_FILES_CHKSUM'>LIC_FILES_CHKSUM</link> | ||
| 126 | </filename></para></listitem> | ||
| 127 | <listitem><para><filename><link linkend='var-SRC_URI'>SRC_URI</link></filename> - used | ||
| 128 | in recipes that fetch local or remote files. | ||
| 129 | </para></listitem> | ||
| 130 | </itemizedlist> | ||
| 131 | </para> | ||
| 132 | </section> | ||
| 133 | |||
| 134 | <section id='ref-varlocality-recipe-dependencies'> | ||
| 135 | <title>Dependencies</title> | ||
| 136 | |||
| 137 | <para> | ||
| 138 | This section lists variables that define recipe dependencies. | ||
| 139 | <itemizedlist> | ||
| 140 | <listitem><para><filename><link linkend='var-DEPENDS'>DEPENDS</link> | ||
| 141 | </filename></para></listitem> | ||
| 142 | <listitem><para><filename><link linkend='var-RDEPENDS'>RDEPENDS</link> | ||
| 143 | </filename></para></listitem> | ||
| 144 | <listitem><para><filename><link linkend='var-RRECOMMENDS'>RRECOMMENDS</link> | ||
| 145 | </filename></para></listitem> | ||
| 146 | <listitem><para><filename><link linkend='var-RCONFLICTS'>RCONFLICTS</link> | ||
| 147 | </filename></para></listitem> | ||
| 148 | <listitem><para><filename><link linkend='var-RREPLACES'>RREPLACES</link> | ||
| 149 | </filename></para></listitem> | ||
| 150 | </itemizedlist> | ||
| 151 | </para> | ||
| 152 | </section> | ||
| 153 | |||
| 154 | <section id='ref-varlocality-recipe-paths'> | ||
| 155 | <title>Paths</title> | ||
| 156 | |||
| 157 | <para> | ||
| 158 | This section lists variables that define recipe paths. | ||
| 159 | <itemizedlist> | ||
| 160 | <listitem><para><filename><link linkend='var-WORKDIR'>WORKDIR</link> | ||
| 161 | </filename></para></listitem> | ||
| 162 | <listitem><para><filename><link linkend='var-S'>S</link> | ||
| 163 | </filename></para></listitem> | ||
| 164 | <listitem><para><filename><link linkend='var-FILES'>FILES</link> | ||
| 165 | </filename></para></listitem> | ||
| 166 | </itemizedlist> | ||
| 167 | </para> | ||
| 168 | </section> | ||
| 169 | |||
| 170 | <section id='ref-varlocality-recipe-build'> | ||
| 171 | <title>Extra Build Information</title> | ||
| 172 | |||
| 173 | <para> | ||
| 174 | This section lists variables that define extra build information for recipes. | ||
| 175 | <itemizedlist> | ||
| 176 | <listitem><para><filename><link linkend='var-EXTRA_OECMAKE'>EXTRA_OECMAKE</link> | ||
| 177 | </filename></para></listitem> | ||
| 178 | <listitem><para><filename><link linkend='var-EXTRA_OECONF'>EXTRA_OECONF</link> | ||
| 179 | </filename></para></listitem> | ||
| 180 | <listitem><para><filename><link linkend='var-EXTRA_OEMAKE'>EXTRA_OEMAKE</link> | ||
| 181 | </filename></para></listitem> | ||
| 182 | <listitem><para><filename><link linkend='var-PACKAGES'>PACKAGES</link></filename> | ||
| 183 | </para></listitem> | ||
| 184 | <listitem><para><filename><link linkend='var-DEFAULT_PREFERENCE'>DEFAULT_PREFERENCE | ||
| 185 | </link></filename></para></listitem> | ||
| 186 | </itemizedlist> | ||
| 187 | </para> | ||
| 188 | </section> | ||
| 189 | </section> | ||
| 190 | </chapter> | ||
| 191 | <!-- | ||
| 192 | vim: expandtab tw=80 ts=4 spell spelllang=en_gb | ||
| 193 | --> | ||
diff --git a/documentation/ref-manual/resources.xml b/documentation/ref-manual/resources.xml new file mode 100644 index 0000000000..a6916064f6 --- /dev/null +++ b/documentation/ref-manual/resources.xml | |||
| @@ -0,0 +1,114 @@ | |||
| 1 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <chapter id='resources'> | ||
| 6 | <title>Contributing to the Yocto Project</title> | ||
| 7 | |||
| 8 | <section id='resources-intro'> | ||
| 9 | <title>Introduction</title> | ||
| 10 | <para> | ||
| 11 | The Yocto Project team is happy for people to experiment with the Yocto Project. | ||
| 12 | A number of places exist to find help if you run into difficulties or find bugs. | ||
| 13 | To find out how to download source code, | ||
| 14 | see the "<ulink url='&YOCTO_DOCS_DEV_URL;#local-yp-release'>Yocto Project Release</ulink>" | ||
| 15 | list item in the Yocto Project Development Manual. | ||
| 16 | </para> | ||
| 17 | </section> | ||
| 18 | |||
| 19 | <section id='resources-bugtracker'> | ||
| 20 | <title>Tracking Bugs</title> | ||
| 21 | |||
| 22 | <para> | ||
| 23 | If you find problems with the Yocto Project, you should report them using the | ||
| 24 | Bugzilla application at <ulink url='&YOCTO_BUGZILLA_URL;'></ulink>. | ||
| 25 | </para> | ||
| 26 | </section> | ||
| 27 | |||
| 28 | <section id='resources-mailinglist'> | ||
| 29 | <title>Mailing lists</title> | ||
| 30 | |||
| 31 | <para> | ||
| 32 | There are a number of mailing lists maintained by the Yocto Project as well as | ||
| 33 | related OpenEmbedded mailing lists for discussion, patch submission and announcements. | ||
| 34 | To subscribe to one of the following mailing lists, click on the appropriate URL | ||
| 35 | in the following list and follow the instructions: | ||
| 36 | <itemizedlist> | ||
| 37 | <listitem><para><ulink url='&YOCTO_LISTS_URL;/listinfo/yocto'></ulink> - | ||
| 38 | General Yocto Project discussion mailing list. </para></listitem> | ||
| 39 | <listitem><para><ulink url='&OE_LISTS_URL;/listinfo/openembedded-core'></ulink> - | ||
| 40 | Discussion mailing list about OpenEmbedded-Core (the core metadata).</para></listitem> | ||
| 41 | <listitem><para><ulink url='&OE_LISTS_URL;/listinfo/openembedded-devel'></ulink> - | ||
| 42 | Discussion mailing list about OpenEmbedded.</para></listitem> | ||
| 43 | <listitem><para><ulink url='&OE_LISTS_URL;/listinfo/bitbake-devel'></ulink> - | ||
| 44 | Discussion mailing list about the BitBake build tool.</para></listitem> | ||
| 45 | <listitem><para><ulink url='&YOCTO_LISTS_URL;/listinfo/poky'></ulink> - | ||
| 46 | Discussion mailing list about Poky.</para></listitem> | ||
| 47 | <listitem><para><ulink url='&YOCTO_LISTS_URL;/listinfo/yocto-announce'></ulink> - | ||
| 48 | Mailing list to receive official Yocto Project release and milestone | ||
| 49 | announcements.</para></listitem> | ||
| 50 | </itemizedlist> | ||
| 51 | </para> | ||
| 52 | </section> | ||
| 53 | |||
| 54 | <section id='resources-irc'> | ||
| 55 | <title>Internet Relay Chat (IRC)</title> | ||
| 56 | |||
| 57 | <para> | ||
| 58 | Two IRC channels on freenode are available for the Yocto Project and Poky discussions: | ||
| 59 | <itemizedlist> | ||
| 60 | <listitem><para><filename>#yocto</filename></para></listitem> | ||
| 61 | <listitem><para><filename>#poky</filename></para></listitem> | ||
| 62 | </itemizedlist> | ||
| 63 | </para> | ||
| 64 | </section> | ||
| 65 | |||
| 66 | <section id='resources-links'> | ||
| 67 | <title>Links</title> | ||
| 68 | |||
| 69 | <para> | ||
| 70 | Following is a list of resources you will find helpful: | ||
| 71 | <itemizedlist> | ||
| 72 | <listitem><para><emphasis><ulink url='&YOCTO_HOME_URL;'>The Yocto Project website</ulink>: | ||
| 73 | </emphasis> The home site for the Yocto Project.</para></listitem> | ||
| 74 | <!-- <listitem><para><emphasis><ulink url='&OH_HOME_URL;'>OpenedHand</ulink>:</emphasis> | ||
| 75 | The company where the Yocto Project build system Poky was first developed. | ||
| 76 | OpenedHand has since been acquired by Intel Corporation.</para></listitem> --> | ||
| 77 | <listitem><para><emphasis><ulink url='http://www.intel.com/'>Intel Corporation</ulink>:</emphasis> | ||
| 78 | The company who acquired OpenedHand in 2008 and began development on the | ||
| 79 | Yocto Project.</para></listitem> | ||
| 80 | <listitem><para><emphasis><ulink url='&OE_HOME_URL;'>OpenEmbedded</ulink>:</emphasis> | ||
| 81 | The upstream, generic, embedded distribution used as the basis for the build system in the | ||
| 82 | Yocto Project. | ||
| 83 | Poky derives from and contributes back to the OpenEmbedded project.</para></listitem> | ||
| 84 | <listitem><para><emphasis><ulink url='http://developer.berlios.de/projects/bitbake/'> | ||
| 85 | BitBake</ulink>:</emphasis> The tool used to process metadata.</para></listitem> | ||
| 86 | <listitem><para><emphasis>BitBake User Manual:</emphasis> | ||
| 87 | A comprehensive guide to the BitBake tool. | ||
| 88 | You can find the BitBake User Manual in the <filename>bitbake/doc/manual</filename> | ||
| 89 | directory, which is found in the | ||
| 90 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 91 | </para></listitem> | ||
| 92 | <listitem><para><emphasis><ulink url='http://wiki.qemu.org/Index.html'>QEMU</ulink>: | ||
| 93 | </emphasis> An open source machine emulator and virtualizer.</para></listitem> | ||
| 94 | </itemizedlist> | ||
| 95 | </para> | ||
| 96 | </section> | ||
| 97 | |||
| 98 | <section id='resources-contributions'> | ||
| 99 | <title>Contributions</title> | ||
| 100 | |||
| 101 | <para> | ||
| 102 | The Yocto Project gladly accepts contributions. | ||
| 103 | You can submit changes to the project either by creating and sending pull requests, | ||
| 104 | or by submitting patches through email. | ||
| 105 | For information on how to do both, see the | ||
| 106 | "<ulink url='&YOCTO_DOCS_DEV_URL;#how-to-submit-a-change'>How to Submit a Change</ulink>" | ||
| 107 | section in the Yocto Project Development Manual. | ||
| 108 | </para> | ||
| 109 | </section> | ||
| 110 | |||
| 111 | </chapter> | ||
| 112 | <!-- | ||
| 113 | vim: expandtab tw=80 ts=4 | ||
| 114 | --> | ||
diff --git a/documentation/ref-manual/technical-details.xml b/documentation/ref-manual/technical-details.xml new file mode 100644 index 0000000000..b1d7c40799 --- /dev/null +++ b/documentation/ref-manual/technical-details.xml | |||
| @@ -0,0 +1,1011 @@ | |||
| 1 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <chapter id='technical-details'> | ||
| 6 | <title>Technical Details</title> | ||
| 7 | |||
| 8 | <para> | ||
| 9 | This chapter provides technical details for various parts of the Yocto Project. | ||
| 10 | Currently, topics include Yocto Project components and shared state (sstate) cache. | ||
| 11 | </para> | ||
| 12 | |||
| 13 | <section id='usingpoky-components'> | ||
| 14 | <title>Yocto Project Components</title> | ||
| 15 | |||
| 16 | <para> | ||
| 17 | The BitBake task executor together with various types of configuration files form the | ||
| 18 | OpenEmbedded Core. | ||
| 19 | This section overviews the BitBake task executor and the | ||
| 20 | configuration files by describing what they are used for and how they interact. | ||
| 21 | </para> | ||
| 22 | |||
| 23 | <para> | ||
| 24 | BitBake handles the parsing and execution of the data files. | ||
| 25 | The data itself is of various types: | ||
| 26 | <itemizedlist> | ||
| 27 | <listitem><para><emphasis>Recipes:</emphasis> Provides details about particular | ||
| 28 | pieces of software</para></listitem> | ||
| 29 | <listitem><para><emphasis>Class Data:</emphasis> An abstraction of common build | ||
| 30 | information (e.g. how to build a Linux kernel).</para></listitem> | ||
| 31 | <listitem><para><emphasis>Configuration Data:</emphasis> Defines machine-specific settings, | ||
| 32 | policy decisions, etc. | ||
| 33 | Configuration data acts as the glue to bind everything together.</para></listitem> | ||
| 34 | </itemizedlist> | ||
| 35 | For more information on data, see the | ||
| 36 | "<ulink url='&YOCTO_DOCS_DEV_URL;#yocto-project-terms'>Yocto Project Terms</ulink>" | ||
| 37 | section in the Yocto Project Development Manual. | ||
| 38 | </para> | ||
| 39 | |||
| 40 | <para> | ||
| 41 | BitBake knows how to combine multiple data sources together and refers to each data source | ||
| 42 | as a layer. | ||
| 43 | For information on layers, see the | ||
| 44 | "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and | ||
| 45 | Creating Layers</ulink>" section of the Yocto Project Development Manual. | ||
| 46 | </para> | ||
| 47 | |||
| 48 | <para> | ||
| 49 | Following are some brief details on these core components. | ||
| 50 | For more detailed information on these components see the | ||
| 51 | "<link linkend='ref-structure'>Directory Structure</link>" chapter. | ||
| 52 | </para> | ||
| 53 | |||
| 54 | <section id='usingpoky-components-bitbake'> | ||
| 55 | <title>BitBake</title> | ||
| 56 | |||
| 57 | <para> | ||
| 58 | BitBake is the tool at the heart of the OpenEmbedded build system and is responsible | ||
| 59 | for parsing the metadata, generating a list of tasks from it, | ||
| 60 | and then executing those tasks. | ||
| 61 | To see a list of the options BitBake supports, use the following help command: | ||
| 62 | <literallayout class='monospaced'> | ||
| 63 | $ bitbake --help | ||
| 64 | </literallayout> | ||
| 65 | </para> | ||
| 66 | |||
| 67 | <para> | ||
| 68 | The most common usage for BitBake is <filename>bitbake <packagename></filename>, where | ||
| 69 | <filename>packagename</filename> is the name of the package you want to build | ||
| 70 | (referred to as the "target" in this manual). | ||
| 71 | The target often equates to the first part of a <filename>.bb</filename> filename. | ||
| 72 | So, to run the <filename>matchbox-desktop_1.2.3.bb</filename> file, you | ||
| 73 | might type the following: | ||
| 74 | <literallayout class='monospaced'> | ||
| 75 | $ bitbake matchbox-desktop | ||
| 76 | </literallayout> | ||
| 77 | Several different versions of <filename>matchbox-desktop</filename> might exist. | ||
| 78 | BitBake chooses the one selected by the distribution configuration. | ||
| 79 | You can get more details about how BitBake chooses between different | ||
| 80 | target versions and providers in the | ||
| 81 | "<link linkend='ref-bitbake-providers'>Preferences and Providers</link>" section. | ||
| 82 | </para> | ||
| 83 | |||
| 84 | <para> | ||
| 85 | BitBake also tries to execute any dependent tasks first. | ||
| 86 | So for example, before building <filename>matchbox-desktop</filename>, BitBake | ||
| 87 | would build a cross compiler and <filename>eglibc</filename> if they had not already | ||
| 88 | been built. | ||
| 89 | <note>This release of the Yocto Project does not support the <filename>glibc</filename> | ||
| 90 | GNU version of the Unix standard C library. By default, the OpenEmbedded build system | ||
| 91 | builds with <filename>eglibc</filename>.</note> | ||
| 92 | </para> | ||
| 93 | |||
| 94 | <para> | ||
| 95 | A useful BitBake option to consider is the <filename>-k</filename> or | ||
| 96 | <filename>--continue</filename> option. | ||
| 97 | This option instructs BitBake to try and continue processing the job as much | ||
| 98 | as possible even after encountering an error. | ||
| 99 | When an error occurs, the target that | ||
| 100 | failed and those that depend on it cannot be remade. | ||
| 101 | However, when you use this option other dependencies can still be processed. | ||
| 102 | </para> | ||
| 103 | </section> | ||
| 104 | |||
| 105 | <section id='usingpoky-components-metadata'> | ||
| 106 | <title>Metadata (Recipes)</title> | ||
| 107 | |||
| 108 | <para> | ||
| 109 | The <filename>.bb</filename> files are usually referred to as "recipes." | ||
| 110 | In general, a recipe contains information about a single piece of software. | ||
| 111 | The information includes the location from which to download the source patches | ||
| 112 | (if any are needed), which special configuration options to apply, | ||
| 113 | how to compile the source files, and how to package the compiled output. | ||
| 114 | </para> | ||
| 115 | |||
| 116 | <para> | ||
| 117 | The term "package" can also be used to describe recipes. | ||
| 118 | However, since the same word is used for the packaged output from the OpenEmbedded | ||
| 119 | build system (i.e. <filename>.ipk</filename> or <filename>.deb</filename> files), | ||
| 120 | this document avoids using the term "package" when referring to recipes. | ||
| 121 | </para> | ||
| 122 | </section> | ||
| 123 | |||
| 124 | <section id='usingpoky-components-classes'> | ||
| 125 | <title>Classes</title> | ||
| 126 | |||
| 127 | <para> | ||
| 128 | Class files (<filename>.bbclass</filename>) contain information that is useful to share | ||
| 129 | between metadata files. | ||
| 130 | An example is the Autotools class, which contains | ||
| 131 | common settings for any application that Autotools uses. | ||
| 132 | The "<link linkend='ref-classes'>Classes</link>" chapter provides details | ||
| 133 | about common classes and how to use them. | ||
| 134 | </para> | ||
| 135 | </section> | ||
| 136 | |||
| 137 | <section id='usingpoky-components-configuration'> | ||
| 138 | <title>Configuration</title> | ||
| 139 | |||
| 140 | <para> | ||
| 141 | The configuration files (<filename>.conf</filename>) define various configuration variables | ||
| 142 | that govern the OpenEmbedded build process. | ||
| 143 | These files fall into several areas that define machine configuration options, | ||
| 144 | distribution configuration options, compiler tuning options, general common configuration | ||
| 145 | options and user configuration options (<filename>local.conf</filename>, which is found | ||
| 146 | in the <ulink url='build-directory'>Build Directory</ulink>). | ||
| 147 | </para> | ||
| 148 | </section> | ||
| 149 | </section> | ||
| 150 | |||
| 151 | <section id="shared-state-cache"> | ||
| 152 | <title>Shared State Cache</title> | ||
| 153 | |||
| 154 | <para> | ||
| 155 | By design, the OpenEmbedded build system builds everything from scratch unless | ||
| 156 | BitBake can determine that parts don't need to be rebuilt. | ||
| 157 | Fundamentally, building from scratch is attractive as it means all parts are | ||
| 158 | built fresh and there is no possibility of stale data causing problems. | ||
| 159 | When developers hit problems, they typically default back to building from scratch | ||
| 160 | so they know the state of things from the start. | ||
| 161 | </para> | ||
| 162 | |||
| 163 | <para> | ||
| 164 | Building an image from scratch is both an advantage and a disadvantage to the process. | ||
| 165 | As mentioned in the previous paragraph, building from scratch ensures that | ||
| 166 | everything is current and starts from a known state. | ||
| 167 | However, building from scratch also takes much longer as it generally means | ||
| 168 | rebuilding things that don't necessarily need rebuilt. | ||
| 169 | </para> | ||
| 170 | |||
| 171 | <para> | ||
| 172 | The Yocto Project implements shared state code that supports incremental builds. | ||
| 173 | The implementation of the shared state code answers the following questions that | ||
| 174 | were fundamental roadblocks within the OpenEmbedded incremental build support system: | ||
| 175 | <itemizedlist> | ||
| 176 | <listitem>What pieces of the system have changed and what pieces have not changed?</listitem> | ||
| 177 | <listitem>How are changed pieces of software removed and replaced?</listitem> | ||
| 178 | <listitem>How are pre-built components that don't need to be rebuilt from scratch | ||
| 179 | used when they are available?</listitem> | ||
| 180 | </itemizedlist> | ||
| 181 | </para> | ||
| 182 | |||
| 183 | <para> | ||
| 184 | For the first question, the build system detects changes in the "inputs" to a given task by | ||
| 185 | creating a checksum (or signature) of the task's inputs. | ||
| 186 | If the checksum changes, the system assumes the inputs have changed and the task needs to be | ||
| 187 | rerun. | ||
| 188 | For the second question, the shared state (sstate) code tracks which tasks add which output | ||
| 189 | to the build process. | ||
| 190 | This means the output from a given task can be removed, upgraded or otherwise manipulated. | ||
| 191 | The third question is partly addressed by the solution for the second question | ||
| 192 | assuming the build system can fetch the sstate objects from remote locations and | ||
| 193 | install them if they are deemed to be valid. | ||
| 194 | </para> | ||
| 195 | |||
| 196 | <para> | ||
| 197 | The rest of this section goes into detail about the overall incremental build | ||
| 198 | architecture, the checksums (signatures), shared state, and some tips and tricks. | ||
| 199 | </para> | ||
| 200 | |||
| 201 | <section id='overall-architecture'> | ||
| 202 | <title>Overall Architecture</title> | ||
| 203 | |||
| 204 | <para> | ||
| 205 | When determining what parts of the system need to be built, BitBake | ||
| 206 | uses a per-task basis and does not use a per-recipe basis. | ||
| 207 | You might wonder why using a per-task basis is preferred over a per-recipe basis. | ||
| 208 | To help explain, consider having the IPK packaging backend enabled and then switching to DEB. | ||
| 209 | In this case, <filename>do_install</filename> and <filename>do_package</filename> | ||
| 210 | output are still valid. | ||
| 211 | However, with a per-recipe approach, the build would not include the | ||
| 212 | <filename>.deb</filename> files. | ||
| 213 | Consequently, you would have to invalidate the whole build and rerun it. | ||
| 214 | Rerunning everything is not the best situation. | ||
| 215 | Also in this case, the core must be "taught" much about specific tasks. | ||
| 216 | This methodology does not scale well and does not allow users to easily add new tasks | ||
| 217 | in layers or as external recipes without touching the packaged-staging core. | ||
| 218 | </para> | ||
| 219 | </section> | ||
| 220 | |||
| 221 | <section id='checksums'> | ||
| 222 | <title>Checksums (Signatures)</title> | ||
| 223 | |||
| 224 | <para> | ||
| 225 | The shared state code uses a checksum, which is a unique signature of a task's | ||
| 226 | inputs, to determine if a task needs to be run again. | ||
| 227 | Because it is a change in a task's inputs that triggers a rerun, the process | ||
| 228 | needs to detect all the inputs to a given task. | ||
| 229 | For shell tasks, this turns out to be fairly easy because | ||
| 230 | the build process generates a "run" shell script for each task and | ||
| 231 | it is possible to create a checksum that gives you a good idea of when | ||
| 232 | the task's data changes. | ||
| 233 | </para> | ||
| 234 | |||
| 235 | <para> | ||
| 236 | To complicate the problem, there are things that should not be included in | ||
| 237 | the checksum. | ||
| 238 | First, there is the actual specific build path of a given task - | ||
| 239 | the <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>. | ||
| 240 | It does not matter if the working directory changes because it should not | ||
| 241 | affect the output for target packages. | ||
| 242 | Also, the build process has the objective of making native/cross packages relocatable. | ||
| 243 | The checksum therefore needs to exclude <filename>WORKDIR</filename>. | ||
| 244 | The simplistic approach for excluding the working directory is to set | ||
| 245 | <filename>WORKDIR</filename> to some fixed value and create the checksum | ||
| 246 | for the "run" script. | ||
| 247 | </para> | ||
| 248 | |||
| 249 | <para> | ||
| 250 | Another problem results from the "run" scripts containing functions that | ||
| 251 | might or might not get called. | ||
| 252 | The incremental build solution contains code that figures out dependencies | ||
| 253 | between shell functions. | ||
| 254 | This code is used to prune the "run" scripts down to the minimum set, | ||
| 255 | thereby alleviating this problem and making the "run" scripts much more | ||
| 256 | readable as a bonus. | ||
| 257 | </para> | ||
| 258 | |||
| 259 | <para> | ||
| 260 | So far we have solutions for shell scripts. | ||
| 261 | What about python tasks? | ||
| 262 | The same approach applies even though these tasks are more difficult. | ||
| 263 | The process needs to figure out what variables a python function accesses | ||
| 264 | and what functions it calls. | ||
| 265 | Again, the incremental build solution contains code that first figures out | ||
| 266 | the variable and function dependencies, and then creates a checksum for the data | ||
| 267 | used as the input to the task. | ||
| 268 | </para> | ||
| 269 | |||
| 270 | <para> | ||
| 271 | Like the <filename>WORKDIR</filename> case, situations exist where dependencies | ||
| 272 | should be ignored. | ||
| 273 | For these cases, you can instruct the build process to ignore a dependency | ||
| 274 | by using a line like the following: | ||
| 275 | <literallayout class='monospaced'> | ||
| 276 | PACKAGE_ARCHS[vardepsexclude] = "MACHINE" | ||
| 277 | </literallayout> | ||
| 278 | This example ensures that the <filename>PACKAGE_ARCHS</filename> variable does not | ||
| 279 | depend on the value of <filename>MACHINE</filename>, even if it does reference it. | ||
| 280 | </para> | ||
| 281 | |||
| 282 | <para> | ||
| 283 | Equally, there are cases where we need to add dependencies BitBake is not able to find. | ||
| 284 | You can accomplish this by using a line like the following: | ||
| 285 | <literallayout class='monospaced'> | ||
| 286 | PACKAGE_ARCHS[vardeps] = "MACHINE" | ||
| 287 | </literallayout> | ||
| 288 | This example explicitly adds the <filename>MACHINE</filename> variable as a | ||
| 289 | dependency for <filename>PACKAGE_ARCHS</filename>. | ||
| 290 | </para> | ||
| 291 | |||
| 292 | <para> | ||
| 293 | Consider a case with inline python, for example, where BitBake is not | ||
| 294 | able to figure out dependencies. | ||
| 295 | When running in debug mode (i.e. using <filename>-DDD</filename>), BitBake | ||
| 296 | produces output when it discovers something for which it cannot figure out | ||
| 297 | dependencies. | ||
| 298 | The Yocto Project team has currently not managed to cover those dependencies | ||
| 299 | in detail and is aware of the need to fix this situation. | ||
| 300 | </para> | ||
| 301 | |||
| 302 | <para> | ||
| 303 | Thus far, this section has limited discussion to the direct inputs into a task. | ||
| 304 | Information based on direct inputs is referred to as the "basehash" in the | ||
| 305 | code. | ||
| 306 | However, there is still the question of a task's indirect inputs - the | ||
| 307 | things that were already built and present in the Build Directory. | ||
| 308 | The checksum (or signature) for a particular task needs to add the hashes | ||
| 309 | of all the tasks on which the particular task depends. | ||
| 310 | Choosing which dependencies to add is a policy decision. | ||
| 311 | However, the effect is to generate a master checksum that combines the basehash | ||
| 312 | and the hashes of the task's dependencies. | ||
| 313 | </para> | ||
| 314 | |||
| 315 | <para> | ||
| 316 | At the code level, there are a variety of ways both the basehash and the | ||
| 317 | dependent task hashes can be influenced. | ||
| 318 | Within the BitBake configuration file, we can give BitBake some extra information | ||
| 319 | to help it construct the basehash. | ||
| 320 | The following statements effectively result in a list of global variable | ||
| 321 | dependency excludes - variables never included in any checksum: | ||
| 322 | <literallayout class='monospaced'> | ||
| 323 | BB_HASHBASE_WHITELIST ?= "TMPDIR FILE PATH PWD BB_TASKHASH BBPATH" | ||
| 324 | BB_HASHBASE_WHITELIST += "DL_DIR SSTATE_DIR THISDIR FILESEXTRAPATHS" | ||
| 325 | BB_HASHBASE_WHITELIST += "FILE_DIRNAME HOME LOGNAME SHELL TERM USER" | ||
| 326 | BB_HASHBASE_WHITELIST += "FILESPATH USERNAME STAGING_DIR_HOST STAGING_DIR_TARGET" | ||
| 327 | </literallayout> | ||
| 328 | The previous example actually excludes | ||
| 329 | <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link> | ||
| 330 | since it is actually constructed as a path within | ||
| 331 | <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>, which is on | ||
| 332 | the whitelist. | ||
| 333 | </para> | ||
| 334 | |||
| 335 | <para> | ||
| 336 | The rules for deciding which hashes of dependent tasks to include through | ||
| 337 | dependency chains are more complex and are generally accomplished with a | ||
| 338 | python function. | ||
| 339 | The code in <filename>meta/lib/oe/sstatesig.py</filename> shows two examples | ||
| 340 | of this and also illustrates how you can insert your own policy into the system | ||
| 341 | if so desired. | ||
| 342 | This file defines the two basic signature generators <filename>OE-Core</filename> | ||
| 343 | uses: "OEBasic" and "OEBasicHash". | ||
| 344 | By default, there is a dummy "noop" signature handler enabled in BitBake. | ||
| 345 | This means that behavior is unchanged from previous versions. | ||
| 346 | <filename>OE-Core</filename> uses the "OEBasic" signature handler by default | ||
| 347 | through this setting in the <filename>bitbake.conf</filename> file: | ||
| 348 | <literallayout class='monospaced'> | ||
| 349 | BB_SIGNATURE_HANDLER ?= "OEBasic" | ||
| 350 | </literallayout> | ||
| 351 | The "OEBasicHash" <filename>BB_SIGNATURE_HANDLER</filename> is the same as the | ||
| 352 | "OEBasic" version but adds the task hash to the stamp files. | ||
| 353 | This results in any metadata change that changes the task hash, automatically | ||
| 354 | causing the task to be run again. | ||
| 355 | This removes the need to bump <link linkend='var-PR'><filename>PR</filename></link> | ||
| 356 | values and changes to metadata automatically ripple across the build. | ||
| 357 | Currently, this behavior is not the default behavior for <filename>OE-Core</filename> | ||
| 358 | but is the default in <filename>poky</filename>. | ||
| 359 | </para> | ||
| 360 | |||
| 361 | <para> | ||
| 362 | It is also worth noting that the end result of these signature generators is to | ||
| 363 | make some dependency and hash information available to the build. | ||
| 364 | This information includes: | ||
| 365 | <literallayout class='monospaced'> | ||
| 366 | BB_BASEHASH_task-<taskname> - the base hashes for each task in the recipe | ||
| 367 | BB_BASEHASH_<filename:taskname> - the base hashes for each dependent task | ||
| 368 | BBHASHDEPS_<filename:taskname> - The task dependencies for each task | ||
| 369 | BB_TASKHASH - the hash of the currently running task | ||
| 370 | </literallayout> | ||
| 371 | </para> | ||
| 372 | </section> | ||
| 373 | |||
| 374 | <section id='shared-state'> | ||
| 375 | <title>Shared State</title> | ||
| 376 | |||
| 377 | <para> | ||
| 378 | Checksums and dependencies, as discussed in the previous section, solve half the | ||
| 379 | problem. | ||
| 380 | The other part of the problem is being able to use checksum information during the build | ||
| 381 | and being able to reuse or rebuild specific components. | ||
| 382 | </para> | ||
| 383 | |||
| 384 | <para> | ||
| 385 | The shared state class (<filename>sstate.bbclass</filename>) | ||
| 386 | is a relatively generic implementation of how to "capture" a snapshot of a given task. | ||
| 387 | The idea is that the build process does not care about the source of a task's output. | ||
| 388 | Output could be freshly built or it could be downloaded and unpacked from | ||
| 389 | somewhere - the build process doesn't need to worry about its source. | ||
| 390 | </para> | ||
| 391 | |||
| 392 | <para> | ||
| 393 | There are two types of output, one is just about creating a directory | ||
| 394 | in <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>. | ||
| 395 | A good example is the output of either <filename>do_install</filename> or | ||
| 396 | <filename>do_package</filename>. | ||
| 397 | The other type of output occurs when a set of data is merged into a shared directory | ||
| 398 | tree such as the sysroot. | ||
| 399 | </para> | ||
| 400 | |||
| 401 | <para> | ||
| 402 | The Yocto Project team has tried to keep the details of the implementation hidden in | ||
| 403 | <filename>sstate.bbclass</filename>. | ||
| 404 | From a user's perspective, adding shared state wrapping to a task | ||
| 405 | is as simple as this <filename>do_deploy</filename> example taken from | ||
| 406 | <filename>do_deploy.bbclass</filename>: | ||
| 407 | <literallayout class='monospaced'> | ||
| 408 | DEPLOYDIR = "${WORKDIR}/deploy-${PN}" | ||
| 409 | SSTATETASKS += "do_deploy" | ||
| 410 | do_deploy[sstate-name] = "deploy" | ||
| 411 | do_deploy[sstate-inputdirs] = "${DEPLOYDIR}" | ||
| 412 | do_deploy[sstate-outputdirs] = "${DEPLOY_DIR_IMAGE}" | ||
| 413 | |||
| 414 | python do_deploy_setscene () { | ||
| 415 | sstate_setscene(d) | ||
| 416 | } | ||
| 417 | addtask do_deploy_setscene | ||
| 418 | </literallayout> | ||
| 419 | In the example, we add some extra flags to the task, a name field ("deploy"), an | ||
| 420 | input directory where the task sends data, and the output | ||
| 421 | directory where the data from the task should eventually be copied. | ||
| 422 | We also add a <filename>_setscene</filename> variant of the task and add the task | ||
| 423 | name to the <filename>SSTATETASKS</filename> list. | ||
| 424 | </para> | ||
| 425 | |||
| 426 | <para> | ||
| 427 | If you have a directory whose contents you need to preserve, you can do this with | ||
| 428 | a line like the following: | ||
| 429 | <literallayout class='monospaced'> | ||
| 430 | do_package[sstate-plaindirs] = "${PKGD} ${PKGDEST}" | ||
| 431 | </literallayout> | ||
| 432 | This method, as well as the following example, also works for multiple directories. | ||
| 433 | <literallayout class='monospaced'> | ||
| 434 | do_package[sstate-inputdirs] = "${PKGDESTWORK} ${SHLIBSWORKDIR}" | ||
| 435 | do_package[sstate-outputdirs] = "${PKGDATA_DIR} ${SHLIBSDIR}" | ||
| 436 | do_package[sstate-lockfile] = "${PACKAGELOCK}" | ||
| 437 | </literallayout> | ||
| 438 | These methods also include the ability to take a lockfile when manipulating | ||
| 439 | shared state directory structures since some cases are sensitive to file | ||
| 440 | additions or removals. | ||
| 441 | </para> | ||
| 442 | |||
| 443 | <para> | ||
| 444 | Behind the scenes, the shared state code works by looking in | ||
| 445 | <link linkend='var-SSTATE_DIR'><filename>SSTATE_DIR</filename></link> and | ||
| 446 | <link linkend='var-SSTATE_MIRRORS'><filename>SSTATE_MIRRORS</filename></link> | ||
| 447 | for shared state files. | ||
| 448 | Here is an example: | ||
| 449 | <literallayout class='monospaced'> | ||
| 450 | SSTATE_MIRRORS ?= "\ | ||
| 451 | file://.* http://someserver.tld/share/sstate/PATH \n \ | ||
| 452 | file://.* file:///some/local/dir/sstate/PATH" | ||
| 453 | </literallayout> | ||
| 454 | <note> | ||
| 455 | The shared state directory (<filename>SSTATE_DIR</filename>) is | ||
| 456 | organized into two-character subdirectories, where the subdirectory | ||
| 457 | names are based on the first two characters of the hash. | ||
| 458 | If the shared state directory structure for a mirror has the | ||
| 459 | same structure as <filename>SSTATE_DIR</filename>, you must | ||
| 460 | specify "PATH" as part of the URI to enable the build system | ||
| 461 | to map to the appropriate subdirectory. | ||
| 462 | </note> | ||
| 463 | </para> | ||
| 464 | |||
| 465 | <para> | ||
| 466 | The shared state package validity can be detected just by looking at the | ||
| 467 | filename since the filename contains the task checksum (or signature) as | ||
| 468 | described earlier in this section. | ||
| 469 | If a valid shared state package is found, the build process downloads it | ||
| 470 | and uses it to accelerate the task. | ||
| 471 | </para> | ||
| 472 | |||
| 473 | <para> | ||
| 474 | The build processes uses the <filename>*_setscene</filename> tasks | ||
| 475 | for the task acceleration phase. | ||
| 476 | BitBake goes through this phase before the main execution code and tries | ||
| 477 | to accelerate any tasks for which it can find shared state packages. | ||
| 478 | If a shared state package for a task is available, the shared state | ||
| 479 | package is used. | ||
| 480 | This means the task and any tasks on which it is dependent are not | ||
| 481 | executed. | ||
| 482 | </para> | ||
| 483 | |||
| 484 | <para> | ||
| 485 | As a real world example, the aim is when building an IPK-based image, | ||
| 486 | only the <filename>do_package_write_ipk</filename> tasks would have their | ||
| 487 | shared state packages fetched and extracted. | ||
| 488 | Since the sysroot is not used, it would never get extracted. | ||
| 489 | This is another reason why a task-based approach is preferred over a | ||
| 490 | recipe-based approach, which would have to install the output from every task. | ||
| 491 | </para> | ||
| 492 | </section> | ||
| 493 | |||
| 494 | <section id='tips-and-tricks'> | ||
| 495 | <title>Tips and Tricks</title> | ||
| 496 | |||
| 497 | <para> | ||
| 498 | The code in the build system that supports incremental builds is not | ||
| 499 | simple code. | ||
| 500 | This section presents some tips and tricks that help you work around | ||
| 501 | issues related to shared state code. | ||
| 502 | </para> | ||
| 503 | |||
| 504 | <section id='debugging'> | ||
| 505 | <title>Debugging</title> | ||
| 506 | |||
| 507 | <para> | ||
| 508 | When things go wrong, debugging needs to be straightforward. | ||
| 509 | Because of this, the Yocto Project team included strong debugging | ||
| 510 | tools: | ||
| 511 | <itemizedlist> | ||
| 512 | <listitem><para>Whenever a shared state package is written out, so is a | ||
| 513 | corresponding <filename>.siginfo</filename> file. | ||
| 514 | This practice results in a pickled python database of all | ||
| 515 | the metadata that went into creating the hash for a given shared state | ||
| 516 | package.</para></listitem> | ||
| 517 | <listitem><para>If BitBake is run with the <filename>--dump-signatures</filename> | ||
| 518 | (or <filename>-S</filename>) option, BitBake dumps out | ||
| 519 | <filename>.siginfo</filename> files in | ||
| 520 | the stamp directory for every task it would have executed instead of | ||
| 521 | building the specified target package.</para></listitem> | ||
| 522 | <listitem><para>There is a <filename>bitbake-diffsigs</filename> command that | ||
| 523 | can process these <filename>.siginfo</filename> files. | ||
| 524 | If one file is specified, it will dump out the dependency | ||
| 525 | information in the file. | ||
| 526 | If two files are specified, it will compare the two files and dump out | ||
| 527 | the differences between the two. | ||
| 528 | This allows the question of "What changed between X and Y?" to be | ||
| 529 | answered easily.</para></listitem> | ||
| 530 | </itemizedlist> | ||
| 531 | </para> | ||
| 532 | </section> | ||
| 533 | |||
| 534 | <section id='invalidating-shared-state'> | ||
| 535 | <title>Invalidating Shared State</title> | ||
| 536 | |||
| 537 | <para> | ||
| 538 | The shared state code uses checksums and shared state | ||
| 539 | cache to avoid unnecessarily rebuilding tasks. | ||
| 540 | As with all schemes, this one has some drawbacks. | ||
| 541 | It is possible that you could make implicit changes that are not factored | ||
| 542 | into the checksum calculation, but do affect a task's output. | ||
| 543 | A good example is perhaps when a tool changes its output. | ||
| 544 | Let's say that the output of <filename>rpmdeps</filename> needed to change. | ||
| 545 | The result of the change should be that all the "package", "package_write_rpm", | ||
| 546 | and "package_deploy-rpm" shared state cache items would become invalid. | ||
| 547 | But, because this is a change that is external to the code and therefore implicit, | ||
| 548 | the associated shared state cache items do not become invalidated. | ||
| 549 | In this case, the build process would use the cached items rather than running the | ||
| 550 | task again. | ||
| 551 | Obviously, these types of implicit changes can cause problems. | ||
| 552 | </para> | ||
| 553 | |||
| 554 | <para> | ||
| 555 | To avoid these problems during the build, you need to understand the effects of any | ||
| 556 | change you make. | ||
| 557 | Note that any changes you make directly to a function automatically are factored into | ||
| 558 | the checksum calculation and thus, will invalidate the associated area of sstate cache. | ||
| 559 | You need to be aware of any implicit changes that are not obvious changes to the | ||
| 560 | code and could affect the output of a given task. | ||
| 561 | Once you are aware of such a change, you can take steps to invalidate the cache | ||
| 562 | and force the task to run. | ||
| 563 | The step to take is as simple as changing a function's comments in the source code. | ||
| 564 | For example, to invalidate package shared state files, change the comment statements | ||
| 565 | of <filename>do_package</filename> or the comments of one of the functions it calls. | ||
| 566 | The change is purely cosmetic, but it causes the checksum to be recalculated and | ||
| 567 | forces the task to be run again. | ||
| 568 | </para> | ||
| 569 | |||
| 570 | <note> | ||
| 571 | For an example of a commit that makes a cosmetic change to invalidate | ||
| 572 | a shared state, see this | ||
| 573 | <ulink url='&YOCTO_GIT_URL;/cgit.cgi/poky/commit/meta/classes/package.bbclass?id=737f8bbb4f27b4837047cb9b4fbfe01dfde36d54'>commit</ulink>. | ||
| 574 | </note> | ||
| 575 | </section> | ||
| 576 | </section> | ||
| 577 | </section> | ||
| 578 | |||
| 579 | <section id='x32'> | ||
| 580 | <title>x32</title> | ||
| 581 | |||
| 582 | <para> | ||
| 583 | x32 is a new processor-specific Application Binary Interface (psABI) for x86_64. | ||
| 584 | An ABI defines the calling conventions between functions in a processing environment. | ||
| 585 | The interface determines what registers are used and what the sizes are for various C data types. | ||
| 586 | </para> | ||
| 587 | |||
| 588 | <para> | ||
| 589 | Some processing environments prefer using 32-bit applications even when running | ||
| 590 | on Intel 64-bit platforms. | ||
| 591 | Consider the i386 psABI, which is a very old 32-bit ABI for Intel 64-bit platforms. | ||
| 592 | The i386 psABI does not provide efficient use and access of the Intel 64-bit processor resources, | ||
| 593 | leaving the system underutilized. | ||
| 594 | Now consider the x86_64 psABI. | ||
| 595 | This ABI is newer and uses 64-bits for data sizes and program pointers. | ||
| 596 | The extra bits increase the footprint size of the programs, libraries, | ||
| 597 | and also increases the memory and file system size requirements. | ||
| 598 | Executing under the x32 psABI enables user programs to utilize CPU and system resources | ||
| 599 | more efficiently while keeping the memory footprint of the applications low. | ||
| 600 | Extra bits are used for registers but not for addressing mechanisms. | ||
| 601 | </para> | ||
| 602 | |||
| 603 | <section id='support'> | ||
| 604 | <title>Support</title> | ||
| 605 | |||
| 606 | <para> | ||
| 607 | While the x32 psABI specifications are not fully finalized, this Yocto Project | ||
| 608 | release supports current development specifications of x32 psABI. | ||
| 609 | As of this release of the Yocto Project, x32 psABI support exists as follows: | ||
| 610 | <itemizedlist> | ||
| 611 | <listitem><para>You can create packages and images in x32 psABI format on x86_64 architecture targets. | ||
| 612 | </para></listitem> | ||
| 613 | <listitem><para>You can use the x32 psABI support through the <filename>meta-x32</filename> | ||
| 614 | layer on top of the OE-core/Yocto layer.</para></listitem> | ||
| 615 | <listitem><para>The toolchain from the <filename>experimental/meta-x32</filename> layer | ||
| 616 | is used for building x32 psABI program binaries.</para></listitem> | ||
| 617 | <listitem><para>You can successfully build many recipes with the x32 toolchain.</para></listitem> | ||
| 618 | <listitem><para>You can create and boot <filename>core-image-minimal</filename> and | ||
| 619 | <filename>core-image-sato</filename> images.</para></listitem> | ||
| 620 | </itemizedlist> | ||
| 621 | </para> | ||
| 622 | </section> | ||
| 623 | |||
| 624 | <section id='future-development-and-limitations'> | ||
| 625 | <title>Future Development and Limitations</title> | ||
| 626 | |||
| 627 | <para> | ||
| 628 | As of this Yocto Project release, the x32 psABI kernel and library interfaces | ||
| 629 | specifications are not finalized. | ||
| 630 | </para> | ||
| 631 | |||
| 632 | <para> | ||
| 633 | Future Plans for the x32 psABI in the Yocto Project include the following: | ||
| 634 | <itemizedlist> | ||
| 635 | <listitem><para>Enhance and fix the few remaining recipes so they | ||
| 636 | work with and support x32 toolchains.</para></listitem> | ||
| 637 | <listitem><para>Enhance RPM Package Manager (RPM) support for x32 binaries.</para></listitem> | ||
| 638 | <listitem><para>Support larger images.</para></listitem> | ||
| 639 | <listitem><para>Integrate x32 recipes, toolchain, and kernel changes from | ||
| 640 | <filename>experimental/meta-x32</filename> into OE-core.</para></listitem> | ||
| 641 | </itemizedlist> | ||
| 642 | </para> | ||
| 643 | </section> | ||
| 644 | |||
| 645 | <section id='using-x32-right-now'> | ||
| 646 | <title>Using x32 Right Now</title> | ||
| 647 | |||
| 648 | <para> | ||
| 649 | Despite the fact the x32 psABI support is in development state for this release of the | ||
| 650 | Yocto Project, you can follow these steps to use the x32 spABI: | ||
| 651 | <itemizedlist> | ||
| 652 | <listitem><para>Add the <filename>experimental/meta-x32</filename> layer to your local | ||
| 653 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>. | ||
| 654 | You can find the <filename>experimental/meta-x32</filename> source repository at | ||
| 655 | <ulink url='&YOCTO_GIT_URL;'></ulink>.</para></listitem> | ||
| 656 | <listitem><para>Edit your <filename>conf/bblayers.conf</filename> file so that it includes | ||
| 657 | the <filename>meta-x32</filename>. | ||
| 658 | Here is an example: | ||
| 659 | <literallayout class='monospaced'> | ||
| 660 | BBLAYERS ?= " \ | ||
| 661 | /home/nitin/prj/poky.git/meta \ | ||
| 662 | /home/nitin/prj/poky.git/meta-yocto \ | ||
| 663 | /home/nitin/prj/poky.git/meta-yocto-bsp \ | ||
| 664 | /home/nitin/prj/meta-x32.git \ | ||
| 665 | " | ||
| 666 | BBLAYERS_NON_REMOVABLE ?= " \ | ||
| 667 | /home/nitin/prj/poky.git/meta \ | ||
| 668 | /home/nitin/prj/poky.git/meta-yocto \ | ||
| 669 | " | ||
| 670 | </literallayout></para></listitem> | ||
| 671 | <listitem><para>Enable the x32 psABI tuning file for <filename>x86_64</filename> | ||
| 672 | machines by editing the <filename>conf/local.conf</filename> like this: | ||
| 673 | <literallayout class='monospaced'> | ||
| 674 | MACHINE = "qemux86-64" | ||
| 675 | DEFAULTTUNE = "x86-64-x32" | ||
| 676 | baselib = "${@d.getVar('BASE_LIB_tune-' + (d.getVar('DEFAULTTUNE', True) \ | ||
| 677 | or 'INVALID'), True) or 'lib'}" | ||
| 678 | #MACHINE = "atom-pc" | ||
| 679 | #DEFAULTTUNE = "core2-64-x32" | ||
| 680 | </literallayout></para></listitem> | ||
| 681 | <listitem><para>As usual, use BitBake to build an image that supports the x32 psABI. | ||
| 682 | Here is an example: | ||
| 683 | <literallayout class='monospaced'> | ||
| 684 | $ bitake core-image-sato | ||
| 685 | </literallayout></para></listitem> | ||
| 686 | <listitem><para>As usual, run your image using QEMU: | ||
| 687 | <literallayout class='monospaced'> | ||
| 688 | $ runqemu qemux86-64 core-image-sato | ||
| 689 | </literallayout></para></listitem> | ||
| 690 | </itemizedlist> | ||
| 691 | </para> | ||
| 692 | </section> | ||
| 693 | </section> | ||
| 694 | |||
| 695 | <section id="licenses"> | ||
| 696 | <title>Licenses</title> | ||
| 697 | |||
| 698 | <para> | ||
| 699 | This section describes the mechanism by which the OpenEmbedded build system | ||
| 700 | tracks changes to licensing text. | ||
| 701 | The section also describes how to enable commercially licensed recipes, | ||
| 702 | which by default are disabled. | ||
| 703 | </para> | ||
| 704 | |||
| 705 | <para> | ||
| 706 | For information that can help you maintain compliance with various open | ||
| 707 | source licensing during the lifecycle of the product, see the | ||
| 708 | "<ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-open-source-license-compliance-during-your-products-lifecycle'>Maintaining Open Source License Compliance During Your Project's Lifecycle</ulink>" section | ||
| 709 | in the Yocto Project Development Manual. | ||
| 710 | </para> | ||
| 711 | |||
| 712 | <section id="usingpoky-configuring-LIC_FILES_CHKSUM"> | ||
| 713 | <title>Tracking License Changes</title> | ||
| 714 | |||
| 715 | <para> | ||
| 716 | The license of an upstream project might change in the future. | ||
| 717 | In order to prevent these changes going unnoticed, the | ||
| 718 | <filename><link linkend='var-LIC_FILES_CHKSUM'>LIC_FILES_CHKSUM</link></filename> | ||
| 719 | variable tracks changes to the license text. The checksums are validated at the end of the | ||
| 720 | configure step, and if the checksums do not match, the build will fail. | ||
| 721 | </para> | ||
| 722 | |||
| 723 | <section id="usingpoky-specifying-LIC_FILES_CHKSUM"> | ||
| 724 | <title>Specifying the <filename>LIC_FILES_CHKSUM</filename> Variable</title> | ||
| 725 | |||
| 726 | <para> | ||
| 727 | The <filename>LIC_FILES_CHKSUM</filename> | ||
| 728 | variable contains checksums of the license text in the source code for the recipe. | ||
| 729 | Following is an example of how to specify <filename>LIC_FILES_CHKSUM</filename>: | ||
| 730 | <literallayout class='monospaced'> | ||
| 731 | LIC_FILES_CHKSUM = "file://COPYING;md5=xxxx \ | ||
| 732 | file://licfile1.txt;beginline=5;endline=29;md5=yyyy \ | ||
| 733 | file://licfile2.txt;endline=50;md5=zzzz \ | ||
| 734 | ..." | ||
| 735 | </literallayout> | ||
| 736 | </para> | ||
| 737 | |||
| 738 | <para> | ||
| 739 | The build system uses the | ||
| 740 | <filename><link linkend='var-S'>S</link></filename> variable as the | ||
| 741 | default directory used when searching files listed in | ||
| 742 | <filename>LIC_FILES_CHKSUM</filename>. | ||
| 743 | The previous example employs the default directory. | ||
| 744 | </para> | ||
| 745 | |||
| 746 | <para> | ||
| 747 | You can also use relative paths as shown in the following example: | ||
| 748 | <literallayout class='monospaced'> | ||
| 749 | LIC_FILES_CHKSUM = "file://src/ls.c;startline=5;endline=16;\ | ||
| 750 | md5=bb14ed3c4cda583abc85401304b5cd4e" | ||
| 751 | LIC_FILES_CHKSUM = "file://../license.html;md5=5c94767cedb5d6987c902ac850ded2c6" | ||
| 752 | </literallayout> | ||
| 753 | </para> | ||
| 754 | |||
| 755 | <para> | ||
| 756 | In this example, the first line locates a file in | ||
| 757 | <filename>${S}/src/ls.c</filename>. | ||
| 758 | The second line refers to a file in | ||
| 759 | <filename><link linkend='var-WORKDIR'>WORKDIR</link></filename>, which is the parent | ||
| 760 | of <filename><link linkend='var-S'>S</link></filename>. | ||
| 761 | </para> | ||
| 762 | <para> | ||
| 763 | Note that this variable is mandatory for all recipes, unless the | ||
| 764 | <filename>LICENSE</filename> variable is set to "CLOSED". | ||
| 765 | </para> | ||
| 766 | </section> | ||
| 767 | |||
| 768 | <section id="usingpoky-LIC_FILES_CHKSUM-explanation-of-syntax"> | ||
| 769 | <title>Explanation of Syntax</title> | ||
| 770 | <para> | ||
| 771 | As mentioned in the previous section, the | ||
| 772 | <filename>LIC_FILES_CHKSUM</filename> variable lists all the | ||
| 773 | important files that contain the license text for the source code. | ||
| 774 | It is possible to specify a checksum for an entire file, or a specific section of a | ||
| 775 | file (specified by beginning and ending line numbers with the "beginline" and "endline" | ||
| 776 | parameters, respectively). | ||
| 777 | The latter is useful for source files with a license notice header, | ||
| 778 | README documents, and so forth. | ||
| 779 | If you do not use the "beginline" parameter, then it is assumed that the text begins on the | ||
| 780 | first line of the file. | ||
| 781 | Similarly, if you do not use the "endline" parameter, it is assumed that the license text | ||
| 782 | ends with the last line of the file. | ||
| 783 | </para> | ||
| 784 | |||
| 785 | <para> | ||
| 786 | The "md5" parameter stores the md5 checksum of the license text. | ||
| 787 | If the license text changes in any way as compared to this parameter | ||
| 788 | then a mismatch occurs. | ||
| 789 | This mismatch triggers a build failure and notifies the developer. | ||
| 790 | Notification allows the developer to review and address the license text changes. | ||
| 791 | Also note that if a mismatch occurs during the build, the correct md5 | ||
| 792 | checksum is placed in the build log and can be easily copied to the recipe. | ||
| 793 | </para> | ||
| 794 | |||
| 795 | <para> | ||
| 796 | There is no limit to how many files you can specify using the | ||
| 797 | <filename>LIC_FILES_CHKSUM</filename> variable. | ||
| 798 | Generally, however, every project requires a few specifications for license tracking. | ||
| 799 | Many projects have a "COPYING" file that stores the license information for all the source | ||
| 800 | code files. | ||
| 801 | This practice allows you to just track the "COPYING" file as long as it is kept up to date. | ||
| 802 | </para> | ||
| 803 | |||
| 804 | <tip> | ||
| 805 | If you specify an empty or invalid "md5" parameter, BitBake returns an md5 mis-match | ||
| 806 | error and displays the correct "md5" parameter value during the build. | ||
| 807 | The correct parameter is also captured in the build log. | ||
| 808 | </tip> | ||
| 809 | |||
| 810 | <tip> | ||
| 811 | If the whole file contains only license text, you do not need to use the "beginline" and | ||
| 812 | "endline" parameters. | ||
| 813 | </tip> | ||
| 814 | </section> | ||
| 815 | </section> | ||
| 816 | |||
| 817 | <section id="enabling-commercially-licensed-recipes"> | ||
| 818 | <title>Enabling Commercially Licensed Recipes</title> | ||
| 819 | |||
| 820 | <para> | ||
| 821 | By default, the OpenEmbedded build system disables | ||
| 822 | components that have commercial or other special licensing | ||
| 823 | requirements. | ||
| 824 | Such requirements are defined on a | ||
| 825 | recipe-by-recipe basis through the <filename>LICENSE_FLAGS</filename> variable | ||
| 826 | definition in the affected recipe. | ||
| 827 | For instance, the | ||
| 828 | <filename>$HOME/poky/meta/recipes-multimedia/gstreamer/gst-plugins-ugly</filename> | ||
| 829 | recipe contains the following statement: | ||
| 830 | <literallayout class='monospaced'> | ||
| 831 | LICENSE_FLAGS = "commercial" | ||
| 832 | </literallayout> | ||
| 833 | Here is a slightly more complicated example that contains both an | ||
| 834 | explicit recipe name and version (after variable expansion): | ||
| 835 | <literallayout class='monospaced'> | ||
| 836 | LICENSE_FLAGS = "license_${PN}_${PV}" | ||
| 837 | </literallayout> | ||
| 838 | In order for a component restricted by a <filename>LICENSE_FLAGS</filename> | ||
| 839 | definition to be enabled and included in an image, it | ||
| 840 | needs to have a matching entry in the global | ||
| 841 | <filename>LICENSE_FLAGS_WHITELIST</filename> variable, which is a variable | ||
| 842 | typically defined in your <filename>local.conf</filename> file. | ||
| 843 | For example, to enable | ||
| 844 | the <filename>$HOME/poky/meta/recipes-multimedia/gstreamer/gst-plugins-ugly</filename> | ||
| 845 | package, you could add either the string | ||
| 846 | "commercial_gst-plugins-ugly" or the more general string | ||
| 847 | "commercial" to <filename>LICENSE_FLAGS_WHITELIST</filename>. | ||
| 848 | See the | ||
| 849 | "<link linkend='license-flag-matching'>License Flag Matching</link>" section | ||
| 850 | for a full explanation of how <filename>LICENSE_FLAGS</filename> matching works. | ||
| 851 | Here is the example: | ||
| 852 | <literallayout class='monospaced'> | ||
| 853 | LICENSE_FLAGS_WHITELIST = "commercial_gst-plugins-ugly" | ||
| 854 | </literallayout> | ||
| 855 | Likewise, to additionally enable the package built from the recipe containing | ||
| 856 | <filename>LICENSE_FLAGS = "license_${PN}_${PV}"</filename>, and assuming | ||
| 857 | that the actual recipe name was <filename>emgd_1.10.bb</filename>, | ||
| 858 | the following string would enable that package as well as | ||
| 859 | the original <filename>gst-plugins-ugly</filename> package: | ||
| 860 | <literallayout class='monospaced'> | ||
| 861 | LICENSE_FLAGS_WHITELIST = "commercial_gst-plugins-ugly license_emgd_1.10" | ||
| 862 | </literallayout> | ||
| 863 | As a convenience, you do not need to specify the complete license string | ||
| 864 | in the whitelist for every package. | ||
| 865 | you can use an abbreviated form, which consists | ||
| 866 | of just the first portion or portions of the license string before | ||
| 867 | the initial underscore character or characters. | ||
| 868 | A partial string will match | ||
| 869 | any license that contains the given string as the first | ||
| 870 | portion of its license. | ||
| 871 | For example, the following | ||
| 872 | whitelist string will also match both of the packages | ||
| 873 | previously mentioned as well as any other packages that have | ||
| 874 | licenses starting with "commercial" or "license". | ||
| 875 | <literallayout class='monospaced'> | ||
| 876 | LICENSE_FLAGS_WHITELIST = "commercial license" | ||
| 877 | </literallayout> | ||
| 878 | </para> | ||
| 879 | |||
| 880 | <section id="license-flag-matching"> | ||
| 881 | <title>License Flag Matching</title> | ||
| 882 | |||
| 883 | <para> | ||
| 884 | The definition of 'matching' in reference to a | ||
| 885 | recipe's <filename>LICENSE_FLAGS</filename> setting is simple. | ||
| 886 | However, some things exist that you should know about in order to | ||
| 887 | correctly and effectively use it. | ||
| 888 | </para> | ||
| 889 | |||
| 890 | <para> | ||
| 891 | Before a flag | ||
| 892 | defined by a particular recipe is tested against the | ||
| 893 | contents of the <filename>LICENSE_FLAGS_WHITELIST</filename> variable, the | ||
| 894 | string <filename>_${PN}</filename> (with | ||
| 895 | <link linkend='var-PN'><filename>PN</filename></link> expanded of course) is | ||
| 896 | appended to the flag, thus automatically making each | ||
| 897 | <filename>LICENSE_FLAGS</filename> value recipe-specific. | ||
| 898 | That string is | ||
| 899 | then matched against the whitelist. | ||
| 900 | So if you specify <filename>LICENSE_FLAGS = "commercial"</filename> in recipe | ||
| 901 | "foo" for example, the string <filename>"commercial_foo"</filename> | ||
| 902 | would normally be what is specified in the whitelist in order for it to | ||
| 903 | match. | ||
| 904 | </para> | ||
| 905 | |||
| 906 | <para> | ||
| 907 | You can broaden the match by | ||
| 908 | putting any "_"-separated beginning subset of a | ||
| 909 | <filename>LICENSE_FLAGS</filename> flag in the whitelist, which will also | ||
| 910 | match. | ||
| 911 | For example, simply specifying "commercial" in | ||
| 912 | the whitelist would match any expanded <filename>LICENSE_FLAGS</filename> | ||
| 913 | definition starting with "commercial" such as | ||
| 914 | "commercial_foo" and "commercial_bar", which are the | ||
| 915 | strings that would be automatically generated for | ||
| 916 | hypothetical "foo" and "bar" recipes assuming those | ||
| 917 | recipes had simply specified the following: | ||
| 918 | <literallayout class='monospaced'> | ||
| 919 | LICENSE_FLAGS = "commercial" | ||
| 920 | </literallayout> | ||
| 921 | </para> | ||
| 922 | |||
| 923 | <para> | ||
| 924 | Broadening the match allows for a range of specificity for the items | ||
| 925 | in the whitelist, from more general to perfectly | ||
| 926 | specific. | ||
| 927 | So you have the choice of exhaustively | ||
| 928 | enumerating each license flag in the whitelist to | ||
| 929 | allow only those specific recipes into the image, or | ||
| 930 | of using a more general string to pick up anything | ||
| 931 | matching just the first component or components of the specified | ||
| 932 | string. | ||
| 933 | </para> | ||
| 934 | |||
| 935 | <para> | ||
| 936 | This scheme works even if the flag already | ||
| 937 | has <filename>_${PN}</filename> appended - the extra <filename>_${PN}</filename> is | ||
| 938 | redundant, but does not affect the outcome. | ||
| 939 | For example, a license flag of "commercial_1.2_foo" would | ||
| 940 | turn into "commercial_1.2_foo_foo" and would match | ||
| 941 | both the general "commercial" and the specific | ||
| 942 | "commercial_1.2_foo", as expected. | ||
| 943 | The flag would also match | ||
| 944 | "commercial_1.2_foo_foo" and "commercial_1.2", which | ||
| 945 | does not make much sense regarding use in the whitelist. | ||
| 946 | </para> | ||
| 947 | |||
| 948 | <para> | ||
| 949 | For a versioned string, you could instead specify | ||
| 950 | "commercial_foo_1.2", which would turn into | ||
| 951 | "commercial_foo_1.2_foo". | ||
| 952 | And, as expected, this flag allows | ||
| 953 | you to pick up this package along with | ||
| 954 | anything else "commercial" when you specify "commercial" | ||
| 955 | in the whitelist. | ||
| 956 | Or, the flag allows you to pick up this package along with anything "commercial_foo" | ||
| 957 | regardless of version when you use "commercial_foo" in the whitelist. | ||
| 958 | Finally, you can be completely specific about the package and version and specify | ||
| 959 | "commercial_foo_1.2" package and version. | ||
| 960 | </para> | ||
| 961 | </section> | ||
| 962 | |||
| 963 | <section id="other-variables-related-to-commercial-licenses"> | ||
| 964 | <title>Other Variables Related to Commercial Licenses</title> | ||
| 965 | |||
| 966 | <para> | ||
| 967 | Other helpful variables related to commercial | ||
| 968 | license handling exist and are defined in the | ||
| 969 | <filename>$HOME/poky/meta/conf/distro/include/default-distrovars.inc</filename> file: | ||
| 970 | <literallayout class='monospaced'> | ||
| 971 | COMMERCIAL_AUDIO_PLUGINS ?= "" | ||
| 972 | COMMERCIAL_VIDEO_PLUGINS ?= "" | ||
| 973 | COMMERCIAL_QT = "" | ||
| 974 | </literallayout> | ||
| 975 | If you want to enable these components, you can do so by making sure you have | ||
| 976 | the following statements in your <filename>local.conf</filename> configuration file: | ||
| 977 | <literallayout class='monospaced'> | ||
| 978 | COMMERCIAL_AUDIO_PLUGINS = "gst-plugins-ugly-mad \ | ||
| 979 | gst-plugins-ugly-mpegaudioparse" | ||
| 980 | COMMERCIAL_VIDEO_PLUGINS = "gst-plugins-ugly-mpeg2dec \ | ||
| 981 | gst-plugins-ugly-mpegstream gst-plugins-bad-mpegvideoparse" | ||
| 982 | COMMERCIAL_QT ?= "qmmp" | ||
| 983 | LICENSE_FLAGS_WHITELIST = "commercial_gst-plugins-ugly commercial_gst-plugins-bad commercial_qmmp" | ||
| 984 | </literallayout> | ||
| 985 | Of course, you could also create a matching whitelist | ||
| 986 | for those components using the more general "commercial" | ||
| 987 | in the whitelist, but that would also enable all the | ||
| 988 | other packages with <filename>LICENSE_FLAGS</filename> containing | ||
| 989 | "commercial", which you may or may not want: | ||
| 990 | <literallayout class='monospaced'> | ||
| 991 | LICENSE_FLAGS_WHITELIST = "commercial" | ||
| 992 | </literallayout> | ||
| 993 | </para> | ||
| 994 | |||
| 995 | <para> | ||
| 996 | Specifying audio and video plug-ins as part of the | ||
| 997 | <filename>COMMERCIAL_AUDIO_PLUGINS</filename> and | ||
| 998 | <filename>COMMERCIAL_VIDEO_PLUGINS</filename> statements | ||
| 999 | or commercial qt components as part of | ||
| 1000 | the <filename>COMMERCIAL_QT</filename> statement (along | ||
| 1001 | with the enabling <filename>LICENSE_FLAGS_WHITELIST</filename>) includes the | ||
| 1002 | plug-ins or components into built images, thus adding | ||
| 1003 | support for media formats or components. | ||
| 1004 | </para> | ||
| 1005 | </section> | ||
| 1006 | </section> | ||
| 1007 | </section> | ||
| 1008 | </chapter> | ||
| 1009 | <!-- | ||
| 1010 | vim: expandtab tw=80 ts=4 | ||
| 1011 | --> | ||
diff --git a/documentation/ref-manual/usingpoky.xml b/documentation/ref-manual/usingpoky.xml new file mode 100644 index 0000000000..149490969a --- /dev/null +++ b/documentation/ref-manual/usingpoky.xml | |||
| @@ -0,0 +1,651 @@ | |||
| 1 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | ||
| 2 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" | ||
| 3 | [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > | ||
| 4 | |||
| 5 | <chapter id='usingpoky'> | ||
| 6 | <title>Using the Yocto Project</title> | ||
| 7 | |||
| 8 | <para> | ||
| 9 | This chapter describes common usage for the Yocto Project. | ||
| 10 | The information is introductory in nature as other manuals in the Yocto Project | ||
| 11 | documentation set provide more details on how to use the Yocto Project. | ||
| 12 | </para> | ||
| 13 | |||
| 14 | <section id='usingpoky-build'> | ||
| 15 | <title>Running a Build</title> | ||
| 16 | |||
| 17 | <para> | ||
| 18 | This section provides a summary of the build process and provides information | ||
| 19 | for less obvious aspects of the build process. | ||
| 20 | For general information on how to build an image using the OpenEmbedded build | ||
| 21 | system, see the | ||
| 22 | "<ulink url='&YOCTO_DOCS_QS_URL;#building-image'>Building an Image</ulink>" | ||
| 23 | section of the Yocto Project Quick Start. | ||
| 24 | </para> | ||
| 25 | |||
| 26 | <section id='build-overview'> | ||
| 27 | <title>Build Overview</title> | ||
| 28 | |||
| 29 | <para> | ||
| 30 | The first thing you need to do is set up the OpenEmbedded build environment by sourcing | ||
| 31 | the <link linkend='structure-core-script'>environment setup script</link> as follows: | ||
| 32 | <literallayout class='monospaced'> | ||
| 33 | $ source &OE_INIT_FILE; [build_dir] | ||
| 34 | </literallayout> | ||
| 35 | </para> | ||
| 36 | |||
| 37 | <para> | ||
| 38 | The <filename>build_dir</filename> is optional and specifies the directory the | ||
| 39 | OpenEmbedded build system uses for the build - | ||
| 40 | the <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>. | ||
| 41 | If you do not specify a Build Directory it defaults to <filename>build</filename> | ||
| 42 | in your current working directory. | ||
| 43 | A common practice is to use a different Build Directory for different targets. | ||
| 44 | For example, <filename>~/build/x86</filename> for a <filename>qemux86</filename> | ||
| 45 | target, and <filename>~/build/arm</filename> for a <filename>qemuarm</filename> target. | ||
| 46 | See <link linkend="structure-core-script">&OE_INIT_FILE;</link> | ||
| 47 | for more information on this script. | ||
| 48 | </para> | ||
| 49 | |||
| 50 | <para> | ||
| 51 | Once the build environment is set up, you can build a target using: | ||
| 52 | <literallayout class='monospaced'> | ||
| 53 | $ bitbake <target> | ||
| 54 | </literallayout> | ||
| 55 | </para> | ||
| 56 | |||
| 57 | <para> | ||
| 58 | The <filename>target</filename> is the name of the recipe you want to build. | ||
| 59 | Common targets are the images in <filename>meta/recipes-core/images</filename>, | ||
| 60 | <filename>/meta/recipes-sato/images</filename>, etc. all found in the | ||
| 61 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 62 | Or, the target can be the name of a recipe for a specific piece of software such as | ||
| 63 | <application>busybox</application>. | ||
| 64 | For more details about the images the OpenEmbedded build system supports, see the | ||
| 65 | "<link linkend="ref-images">Images</link>" chapter. | ||
| 66 | </para> | ||
| 67 | |||
| 68 | <note> | ||
| 69 | Building an image without GNU General Public License Version 3 (GPLv3) components | ||
| 70 | is only supported for minimal and base images. | ||
| 71 | See the "<link linkend='ref-images'>Images</link>" chapter for more information. | ||
| 72 | </note> | ||
| 73 | </section> | ||
| 74 | |||
| 75 | <section id='building-an-image-using-gpl-components'> | ||
| 76 | <title>Building an Image Using GPL Components</title> | ||
| 77 | |||
| 78 | <para> | ||
| 79 | When building an image using GPL components, you need to maintain your original | ||
| 80 | settings and not switch back and forth applying different versions of the GNU | ||
| 81 | General Public License. | ||
| 82 | If you rebuild using different versions of GPL, dependency errors might occur | ||
| 83 | due to some components not being rebuilt. | ||
| 84 | </para> | ||
| 85 | </section> | ||
| 86 | </section> | ||
| 87 | |||
| 88 | <section id='usingpoky-install'> | ||
| 89 | <title>Installing and Using the Result</title> | ||
| 90 | |||
| 91 | <para> | ||
| 92 | Once an image has been built, it often needs to be installed. | ||
| 93 | The images and kernels built by the OpenEmbedded build system are placed in the | ||
| 94 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink> in | ||
| 95 | <filename class="directory">tmp/deploy/images</filename>. | ||
| 96 | For information on how to run pre-built images such as <filename>qemux86</filename> | ||
| 97 | and <filename>qemuarm</filename>, see the | ||
| 98 | "<ulink url='&YOCTO_DOCS_QS_URL;#using-pre-built'>Using Pre-Built Binaries and QEMU</ulink>" | ||
| 99 | section in the Yocto Project Quick Start. | ||
| 100 | For information about how to install these images, see the documentation for your | ||
| 101 | particular board/machine. | ||
| 102 | </para> | ||
| 103 | </section> | ||
| 104 | |||
| 105 | <section id='usingpoky-debugging'> | ||
| 106 | <title>Debugging Build Failures</title> | ||
| 107 | |||
| 108 | <para> | ||
| 109 | The exact method for debugging build failures depends on the nature of the | ||
| 110 | problem and on the system's area from which the bug originates. | ||
| 111 | Standard debugging practices such as comparison against the last | ||
| 112 | known working version with examination of the changes and the re-application of steps | ||
| 113 | to identify the one causing the problem are | ||
| 114 | valid for the Yocto Project just as they are for any other system. | ||
| 115 | Even though it is impossible to detail every possible potential failure, | ||
| 116 | this section provides some general tips to aid in debugging. | ||
| 117 | </para> | ||
| 118 | |||
| 119 | <section id='usingpoky-debugging-taskfailures'> | ||
| 120 | <title>Task Failures</title> | ||
| 121 | |||
| 122 | <para>The log file for shell tasks is available in | ||
| 123 | <filename>${WORKDIR}/temp/log.do_taskname.pid</filename>. | ||
| 124 | For example, the <filename>compile</filename> task for the QEMU minimal image for the x86 | ||
| 125 | machine (<filename>qemux86</filename>) might be | ||
| 126 | <filename>tmp/work/qemux86-poky-linux/core-image-minimal/1.0-r0/temp/log.do_compile.20830</filename>. | ||
| 127 | To see what BitBake runs to generate that log, look at the corresponding | ||
| 128 | <filename>run.do_taskname.pid</filename> file located in the same directory. | ||
| 129 | </para> | ||
| 130 | |||
| 131 | <para> | ||
| 132 | Presently, the output from Python tasks is sent directly to the console. | ||
| 133 | </para> | ||
| 134 | </section> | ||
| 135 | |||
| 136 | <section id='usingpoky-debugging-taskrunning'> | ||
| 137 | <title>Running Specific Tasks</title> | ||
| 138 | |||
| 139 | <para> | ||
| 140 | Any given package consists of a set of tasks. | ||
| 141 | The standard BitBake behavior in most cases is: <filename>fetch</filename>, | ||
| 142 | <filename>unpack</filename>, | ||
| 143 | <filename>patch</filename>, <filename>configure</filename>, | ||
| 144 | <filename>compile</filename>, <filename>install</filename>, <filename>package</filename>, | ||
| 145 | <filename>package_write</filename>, and <filename>build</filename>. | ||
| 146 | The default task is <filename>build</filename> and any tasks on which it depends | ||
| 147 | build first. | ||
| 148 | Some tasks exist, such as <filename>devshell</filename>, that are not part of the | ||
| 149 | default build chain. | ||
| 150 | If you wish to run a task that is not part of the default build chain, you can use the | ||
| 151 | <filename>-c</filename> option in BitBake as follows: | ||
| 152 | <literallayout class='monospaced'> | ||
| 153 | $ bitbake matchbox-desktop -c devshell | ||
| 154 | </literallayout> | ||
| 155 | </para> | ||
| 156 | |||
| 157 | <para> | ||
| 158 | If you wish to rerun a task, use the <filename>-f</filename> force option. | ||
| 159 | For example, the following sequence forces recompilation after changing files in the | ||
| 160 | working directory. | ||
| 161 | <literallayout class='monospaced'> | ||
| 162 | $ bitbake matchbox-desktop | ||
| 163 | . | ||
| 164 | . | ||
| 165 | [make some changes to the source code in the working directory] | ||
| 166 | . | ||
| 167 | . | ||
| 168 | $ bitbake matchbox-desktop -c compile -f | ||
| 169 | $ bitbake matchbox-desktop | ||
| 170 | </literallayout> | ||
| 171 | </para> | ||
| 172 | |||
| 173 | <para> | ||
| 174 | This sequence first builds <filename>matchbox-desktop</filename> and then recompiles it. | ||
| 175 | The last command reruns all tasks (basically the packaging tasks) after the compile. | ||
| 176 | BitBake recognizes that the <filename>compile</filename> task was rerun and therefore | ||
| 177 | understands that the other tasks also need to be run again. | ||
| 178 | </para> | ||
| 179 | |||
| 180 | <para> | ||
| 181 | You can view a list of tasks in a given package by running the | ||
| 182 | <filename>listtasks</filename> task as follows: | ||
| 183 | <literallayout class='monospaced'> | ||
| 184 | $ bitbake matchbox-desktop -c listtasks | ||
| 185 | </literallayout> | ||
| 186 | The results are in the file <filename>${WORKDIR}/temp/log.do_listtasks</filename>. | ||
| 187 | </para> | ||
| 188 | </section> | ||
| 189 | |||
| 190 | <section id='usingpoky-debugging-dependencies'> | ||
| 191 | <title>Dependency Graphs</title> | ||
| 192 | |||
| 193 | <para> | ||
| 194 | Sometimes it can be hard to see why BitBake wants to build some other packages before a given | ||
| 195 | package you have specified. | ||
| 196 | The <filename>bitbake -g targetname</filename> command creates the | ||
| 197 | <filename>depends.dot</filename>, <filename>package-depends.dot</filename>, | ||
| 198 | and <filename>task-depends.dot</filename> files in the current directory. | ||
| 199 | These files show the package and task dependencies and are useful for debugging problems. | ||
| 200 | You can use the <filename>bitbake -g -u depexp targetname</filename> command to | ||
| 201 | display the results in a more human-readable form. | ||
| 202 | </para> | ||
| 203 | </section> | ||
| 204 | |||
| 205 | <section id='usingpoky-debugging-bitbake'> | ||
| 206 | <title>General BitBake Problems</title> | ||
| 207 | |||
| 208 | <para> | ||
| 209 | You can see debug output from BitBake by using the <filename>-D</filename> option. | ||
| 210 | The debug output gives more information about what BitBake | ||
| 211 | is doing and the reason behind it. | ||
| 212 | Each <filename>-D</filename> option you use increases the logging level. | ||
| 213 | The most common usage is <filename>-DDD</filename>. | ||
| 214 | </para> | ||
| 215 | |||
| 216 | <para> | ||
| 217 | The output from <filename>bitbake -DDD -v targetname</filename> can reveal why | ||
| 218 | BitBake chose a certain version of a package or why BitBake | ||
| 219 | picked a certain provider. | ||
| 220 | This command could also help you in a situation where you think BitBake did something | ||
| 221 | unexpected. | ||
| 222 | </para> | ||
| 223 | </section> | ||
| 224 | |||
| 225 | <section id='usingpoky-debugging-buildfile'> | ||
| 226 | <title>Building with No Dependencies</title> | ||
| 227 | <para> | ||
| 228 | If you really want to build a specific <filename>.bb</filename> file, you can use | ||
| 229 | the command form <filename>bitbake -b <somepath/somefile.bb></filename>. | ||
| 230 | This command form does not check for dependencies so you should use it | ||
| 231 | only when you know its dependencies already exist. | ||
| 232 | You can also specify fragments of the filename. | ||
| 233 | In this case, BitBake checks for a unique match. | ||
| 234 | </para> | ||
| 235 | </section> | ||
| 236 | |||
| 237 | <section id='usingpoky-debugging-variables'> | ||
| 238 | <title>Variables</title> | ||
| 239 | <para> | ||
| 240 | The <filename>-e</filename> option dumps the resulting environment for | ||
| 241 | either the configuration (no package specified) or for a | ||
| 242 | specific package when specified; or <filename>-b recipename</filename> | ||
| 243 | to show the environment from parsing a single recipe file only. | ||
| 244 | </para> | ||
| 245 | </section> | ||
| 246 | |||
| 247 | <section id='recipe-logging-mechanisms'> | ||
| 248 | <title>Recipe Logging Mechanisms</title> | ||
| 249 | <para> | ||
| 250 | Best practices exist while writing recipes that both log build progress and | ||
| 251 | act on build conditions such as warnings and errors. | ||
| 252 | Both Python and Bash language bindings exist for the logging mechanism: | ||
| 253 | <itemizedlist> | ||
| 254 | <listitem><para><emphasis>Python:</emphasis> For Python functions, BitBake | ||
| 255 | supports several loglevels: <filename>bb.fatal</filename>, | ||
| 256 | <filename>bb.error</filename>, <filename>bb.warn</filename>, | ||
| 257 | <filename>bb.note</filename>, <filename>bb.plain</filename>, | ||
| 258 | and <filename>bb.debug</filename>.</para></listitem> | ||
| 259 | <listitem><para><emphasis>Bash:</emphasis> For Bash functions, the same set | ||
| 260 | of loglevels exist and are accessed with a similar syntax: | ||
| 261 | <filename>bbfatal</filename>, <filename>bberror</filename>, | ||
| 262 | <filename>bbwarn</filename>, <filename>bbnote</filename>, | ||
| 263 | <filename>bbplain</filename>, and <filename>bbdebug</filename>.</para></listitem> | ||
| 264 | </itemizedlist> | ||
| 265 | </para> | ||
| 266 | |||
| 267 | <para> | ||
| 268 | For guidance on how logging is handled in both Python and Bash recipes, see the | ||
| 269 | <filename>logging.bbclass</filename> file in the | ||
| 270 | <filename>meta/classes</filename> folder of the | ||
| 271 | <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>. | ||
| 272 | </para> | ||
| 273 | |||
| 274 | <section id='logging-with-python'> | ||
| 275 | <title>Logging With Python</title> | ||
| 276 | <para> | ||
| 277 | When creating recipes using Python and inserting code that handles build logs | ||
| 278 | keep in mind the goal is to have informative logs while keeping the console as | ||
| 279 | "silent" as possible. | ||
| 280 | Also, if you want status messages in the log use the "debug" loglevel. | ||
| 281 | </para> | ||
| 282 | |||
| 283 | <para> | ||
| 284 | Following is an example written in Python. | ||
| 285 | The code handles logging for a function that determines the number of tasks | ||
| 286 | needed to be run: | ||
| 287 | <literallayout class='monospaced'> | ||
| 288 | python do_listtasks() { | ||
| 289 | bb.debug(2, "Starting to figure out the task list") | ||
| 290 | if noteworthy_condition: | ||
| 291 | bb.note("There are 47 tasks to run") | ||
| 292 | bb.debug(2, "Got to point xyz") | ||
| 293 | if warning_trigger: | ||
| 294 | bb.warn("Detected warning_trigger, this might be a problem later.") | ||
| 295 | if recoverable_error: | ||
| 296 | bb.error("Hit recoverable_error, you really need to fix this!") | ||
| 297 | if fatal_error: | ||
| 298 | bb.fatal("fatal_error detected, unable to print the task list") | ||
| 299 | bb.plain("The tasks present are abc") | ||
| 300 | bb.debug(2, "Finished figuring out the tasklist") | ||
| 301 | } | ||
| 302 | </literallayout> | ||
| 303 | </para> | ||
| 304 | </section> | ||
| 305 | |||
| 306 | <section id='logging-with-bash'> | ||
| 307 | <title>Logging With Bash</title> | ||
| 308 | <para> | ||
| 309 | When creating recipes using Bash and inserting code that handles build | ||
| 310 | logs you have the same goals - informative with minimal console output. | ||
| 311 | The syntax you use for recipes written in Bash is similar to that of | ||
| 312 | recipes written in Python described in the previous section. | ||
| 313 | </para> | ||
| 314 | |||
| 315 | <para> | ||
| 316 | Following is an example written in Bash. | ||
| 317 | The code logs the progress of the <filename>do_my_function</filename> function. | ||
| 318 | <literallayout class='monospaced'> | ||
| 319 | do_my_function() { | ||
| 320 | bbdebug 2 "Running do_my_function" | ||
| 321 | if [ exceptional_condition ]; then | ||
| 322 | bbnote "Hit exceptional_condition" | ||
| 323 | fi | ||
| 324 | bbdebug 2 "Got to point xyz" | ||
| 325 | if [ warning_trigger ]; then | ||
| 326 | bbwarn "Detected warning_trigger, this might cause a problem later." | ||
| 327 | fi | ||
| 328 | if [ recoverable_error ]; then | ||
| 329 | bberror "Hit recoverable_error, correcting" | ||
| 330 | fi | ||
| 331 | if [ fatal_error ]; then | ||
| 332 | bbfatal "fatal_error detected" | ||
| 333 | fi | ||
| 334 | bbdebug 2 "Completed do_my_function" | ||
| 335 | } | ||
| 336 | </literallayout> | ||
| 337 | </para> | ||
| 338 | </section> | ||
| 339 | </section> | ||
| 340 | |||
| 341 | <section id='usingpoky-debugging-others'> | ||
| 342 | <title>Other Tips</title> | ||
| 343 | |||
| 344 | <para> | ||
| 345 | Here are some other tips that you might find useful: | ||
| 346 | <itemizedlist> | ||
| 347 | <listitem><para>When adding new packages, it is worth watching for | ||
| 348 | undesirable items making their way into compiler command lines. | ||
| 349 | For example, you do not want references to local system files like | ||
| 350 | <filename>/usr/lib/</filename> or <filename>/usr/include/</filename>. | ||
| 351 | </para></listitem> | ||
| 352 | <listitem><para>If you want to remove the psplash boot splashscreen, | ||
| 353 | add <filename>psplash=false</filename> to the kernel command line. | ||
| 354 | Doing so prevents psplash from loading and thus allows you to see the console. | ||
| 355 | It is also possible to switch out of the splashscreen by | ||
| 356 | switching the virtual console (e.g. Fn+Left or Fn+Right on a Zaurus). | ||
| 357 | </para></listitem> | ||
| 358 | </itemizedlist> | ||
| 359 | </para> | ||
| 360 | </section> | ||
| 361 | </section> | ||
| 362 | |||
| 363 | <section id='maintaining-build-output-quality'> | ||
| 364 | <title>Maintaining Build Output Quality</title> | ||
| 365 | |||
| 366 | <para> | ||
| 367 | A build's quality can be influenced by many things. | ||
| 368 | For example, if you upgrade a recipe to use a new version of an upstream software | ||
| 369 | package or you experiment with some new configuration options, subtle changes | ||
| 370 | can occur that you might not detect until later. | ||
| 371 | Consider the case where your recipe is using a newer version of an upstream package. | ||
| 372 | In this case, a new version of a piece of software might introduce an optional | ||
| 373 | dependency on another library, which is auto-detected. | ||
| 374 | If that library has already been built when the software is building, | ||
| 375 | then the software will link to the built library and that library will be pulled | ||
| 376 | into your image along with the new software even if you did not want the | ||
| 377 | library. | ||
| 378 | </para> | ||
| 379 | |||
| 380 | <para> | ||
| 381 | The <filename>buildhistory</filename> class exists to help you maintain | ||
| 382 | the quality of your build output. | ||
| 383 | You can use the class to highlight unexpected and possibly unwanted | ||
| 384 | changes in the build output. | ||
| 385 | When you enable build history it records information about the contents of | ||
| 386 | each package and image and then commits that information to a local Git | ||
| 387 | repository where you can examine the information. | ||
| 388 | </para> | ||
| 389 | |||
| 390 | <para> | ||
| 391 | The remainder of this section describes the following: | ||
| 392 | <itemizedlist> | ||
| 393 | <listitem><para>How you can enable and disable | ||
| 394 | build history</para></listitem> | ||
| 395 | <listitem><para>How to understand what the build history contains | ||
| 396 | </para></listitem> | ||
| 397 | <listitem><para>How to limit the information used for build history | ||
| 398 | </para></listitem> | ||
| 399 | <listitem><para>How to examine the build history from both a | ||
| 400 | command-line and web interface</para></listitem> | ||
| 401 | </itemizedlist> | ||
| 402 | </para> | ||
| 403 | |||
| 404 | <section id='enabling-and-disabling-build-history'> | ||
| 405 | <title>Enabling and Disabling Build History</title> | ||
| 406 | |||
| 407 | <para> | ||
| 408 | Build history is disabled by default. | ||
| 409 | To enable it, add the following statements to the end of your | ||
| 410 | <filename>conf/local.conf</filename> file found in the | ||
| 411 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>: | ||
| 412 | <literallayout class='monospaced'> | ||
| 413 | INHERIT += "buildhistory" | ||
| 414 | BUILDHISTORY_COMMIT = "1" | ||
| 415 | </literallayout> | ||
| 416 | Enabling build history as previously described | ||
| 417 | causes the build process to collect build | ||
| 418 | output information and commit it to a local | ||
| 419 | <ulink url='&YOCTO_DOCS_DEV_URL;#git'>Git</ulink> repository. | ||
| 420 | <note> | ||
| 421 | Enabling build history increases your build times slightly, | ||
| 422 | particularly for images, and increases the amount of disk | ||
| 423 | space used during the build. | ||
| 424 | </note> | ||
| 425 | </para> | ||
| 426 | |||
| 427 | <para> | ||
| 428 | You can disable build history by removing the previous statements | ||
| 429 | from your <filename>conf/local.conf</filename> file. | ||
| 430 | However, you should realize that enabling and disabling | ||
| 431 | build history in this manner can change the | ||
| 432 | <filename>do_package</filename> task checksums, which if you | ||
| 433 | are using the OEBasicHash signature generator (the default | ||
| 434 | for many current distro configurations including | ||
| 435 | <filename>DISTRO = "poky"</filename> and | ||
| 436 | <filename>DISTRO = ""</filename>) will result in the packaging | ||
| 437 | tasks being re-run during the subsequent build. | ||
| 438 | </para> | ||
| 439 | |||
| 440 | <para> | ||
| 441 | To disable the build history functionality without causing the | ||
| 442 | packaging tasks to be re-run, add just this statement to your | ||
| 443 | <filename>conf/local.conf</filename> file: | ||
| 444 | <literallayout class='monospaced'> | ||
| 445 | BUILDHISTORY_FEATURES = "" | ||
| 446 | </literallayout> | ||
| 447 | </para> | ||
| 448 | </section> | ||
| 449 | |||
| 450 | <section id='understanding-what-the-build-history-contains'> | ||
| 451 | <title>Understanding What the Build History Contains</title> | ||
| 452 | |||
| 453 | <para> | ||
| 454 | Build history information is kept in | ||
| 455 | <link linkend='var-TMPDIR'><filename>$TMPDIR</filename></link><filename>/buildhistory</filename> | ||
| 456 | in the Build Directory. | ||
| 457 | The following is an example abbreviated listing: | ||
| 458 | <imagedata fileref="figures/buildhistory.png" align="center" width="6in" depth="4in" /> | ||
| 459 | </para> | ||
| 460 | |||
| 461 | <section id='build-history-package-information'> | ||
| 462 | <title>Build History Package Information</title> | ||
| 463 | |||
| 464 | <para> | ||
| 465 | The history for each package contains a text file that has | ||
| 466 | name-value pairs with information about the package. | ||
| 467 | For example, <filename>buildhistory/packages/core2-poky-linux/busybox/busybox/latest</filename> | ||
| 468 | contains the following: | ||
| 469 | <literallayout class='monospaced'> | ||
| 470 | PV = 1.19.3 | ||
| 471 | PR = r3 | ||
| 472 | RDEPENDS = update-rc.d eglibc (>= 2.13) | ||
| 473 | RRECOMMENDS = busybox-syslog busybox-udhcpc | ||
| 474 | PKGSIZE = 564701 | ||
| 475 | FILES = /usr/bin/* /usr/sbin/* /usr/libexec/* /usr/lib/lib*.so.* \ | ||
| 476 | /etc /com /var /bin/* /sbin/* /lib/*.so.* /usr/share/busybox \ | ||
| 477 | /usr/lib/busybox/* /usr/share/pixmaps /usr/share/applications \ | ||
| 478 | /usr/share/idl /usr/share/omf /usr/share/sounds /usr/lib/bonobo/servers | ||
| 479 | FILELIST = /etc/busybox.links /etc/init.d/hwclock.sh /bin/busybox /bin/sh | ||
| 480 | </literallayout> | ||
| 481 | Most of these name-value pairs corresponds to variables used | ||
| 482 | to produce the package. | ||
| 483 | The exceptions are <filename>FILELIST</filename>, which is the | ||
| 484 | actual list of files in the package, and | ||
| 485 | <filename>PKGSIZE</filename>, which is the total size of files | ||
| 486 | in the package in bytes. | ||
| 487 | </para> | ||
| 488 | |||
| 489 | <para> | ||
| 490 | There is also a file corresponding to the recipe from which the | ||
| 491 | package came (e.g. | ||
| 492 | <filename>buildhistory/packages/core2-poky-linux/busybox/latest</filename>): | ||
| 493 | <literallayout class='monospaced'> | ||
| 494 | PV = 1.19.3 | ||
| 495 | PR = r3 | ||
| 496 | DEPENDS = virtual/i586-poky-linux-gcc virtual/i586-poky-linux-compilerlibs \ | ||
| 497 | virtual/libc update-rc.d-native | ||
| 498 | PACKAGES = busybox-httpd busybox-udhcpd busybox-udhcpc busybox-syslog \ | ||
| 499 | busybox-mdev busybox-dbg busybox busybox-doc busybox-dev \ | ||
| 500 | busybox-staticdev busybox-locale | ||
| 501 | </literallayout> | ||
| 502 | </para> | ||
| 503 | </section> | ||
| 504 | |||
| 505 | <section id='build-history-image-information'> | ||
| 506 | <title>Build History Image Information</title> | ||
| 507 | |||
| 508 | <para> | ||
| 509 | The files produced for each image are as follows: | ||
| 510 | <itemizedlist> | ||
| 511 | <listitem><para><emphasis>build-id:</emphasis> | ||
| 512 | Human-readable information about the build configuration | ||
| 513 | and metadata source revisions.</para></listitem> | ||
| 514 | <listitem><para><emphasis>*.dot:</emphasis> | ||
| 515 | Dependency graphs for the image that are | ||
| 516 | compatible with <filename>graphviz</filename>. | ||
| 517 | </para></listitem> | ||
| 518 | <listitem><para><emphasis>files-in-image.txt:</emphasis> | ||
| 519 | A list of files in the image with permissions, | ||
| 520 | owner, group, size, and symlink information. | ||
| 521 | </para></listitem> | ||
| 522 | <listitem><para><emphasis>image-info.txt:</emphasis> | ||
| 523 | A text file containing name-value pairs with information | ||
| 524 | about the image. | ||
| 525 | See the following listing example for more information. | ||
| 526 | </para></listitem> | ||
| 527 | <listitem><para><emphasis>installed-package-names.txt:</emphasis> | ||
| 528 | A list of installed packages by name only.</para></listitem> | ||
| 529 | <listitem><para><emphasis>installed-package-sizes.txt:</emphasis> | ||
| 530 | A list of installed packages ordered by size. | ||
| 531 | </para></listitem> | ||
| 532 | <listitem><para><emphasis>installed-packages.txt:</emphasis> | ||
| 533 | A list of installed packages with fuill package | ||
| 534 | filenames.</para></listitem> | ||
| 535 | </itemizedlist> | ||
| 536 | <note> | ||
| 537 | Installed package information is able to be gathered and | ||
| 538 | produced even if package management is disabled for the final | ||
| 539 | image. | ||
| 540 | </note> | ||
| 541 | </para> | ||
| 542 | |||
| 543 | <para> | ||
| 544 | Here is an example of <filename>image-info.txt</filename>: | ||
| 545 | <literallayout class='monospaced'> | ||
| 546 | DISTRO = poky | ||
| 547 | DISTRO_VERSION = 1.1+snapshot-20120207 | ||
| 548 | USER_CLASSES = image-mklibs image-prelink | ||
| 549 | IMAGE_CLASSES = image_types | ||
| 550 | IMAGE_FEATURES = debug-tweaks x11-base apps-x11-core \ | ||
| 551 | package-management ssh-server-dropbear package-management | ||
| 552 | IMAGE_LINGUAS = en-us en-gb | ||
| 553 | IMAGE_INSTALL = task-core-boot task-base-extended | ||
| 554 | BAD_RECOMMENDATIONS = | ||
| 555 | ROOTFS_POSTPROCESS_COMMAND = buildhistory_get_image_installed ; rootfs_update_timestamp ; | ||
| 556 | IMAGE_POSTPROCESS_COMMAND = buildhistory_get_imageinfo ; | ||
| 557 | IMAGESIZE = 171816 | ||
| 558 | </literallayout> | ||
| 559 | Other than <filename>IMAGESIZE</filename>, which is the | ||
| 560 | total size of the files in the image in Kbytes, the | ||
| 561 | name-value pairs are variables that may have influenced the | ||
| 562 | content of the image. | ||
| 563 | This information is often useful when you are trying to determine | ||
| 564 | why a change in the package or file listings has occurred. | ||
| 565 | </para> | ||
| 566 | </section> | ||
| 567 | |||
| 568 | <section id='using-build-history-to-gather-image-information-only'> | ||
| 569 | <title>Using Build History to Gather Image Information Only</title> | ||
| 570 | |||
| 571 | <para> | ||
| 572 | As you can see, build history produces image information, | ||
| 573 | including dependency graphs, so you can see why something | ||
| 574 | was pulled into the image. | ||
| 575 | If you are just interested in this information and not | ||
| 576 | interested in collecting history or any package information, | ||
| 577 | you can enable writing only image information without | ||
| 578 | any history by adding the following | ||
| 579 | to your <filename>conf/local.conf</filename> file found in the | ||
| 580 | <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>: | ||
| 581 | <literallayout class='monospaced'> | ||
| 582 | INHERIT += "buildhistory" | ||
| 583 | BUILDHISTORY_COMMIT = "0" | ||
| 584 | BUILDHISTORY_FEATURES = "image" | ||
| 585 | </literallayout> | ||
| 586 | </para> | ||
| 587 | </section> | ||
| 588 | |||
| 589 | <section id='examining-build-history-information'> | ||
| 590 | <title>Examining Build History Information</title> | ||
| 591 | |||
| 592 | <para> | ||
| 593 | You can examine build history output from the command line or | ||
| 594 | from a web interface. | ||
| 595 | </para> | ||
| 596 | |||
| 597 | <para> | ||
| 598 | To see any changes that have occurred (assuming you have | ||
| 599 | <filename>BUILDHISTORY_COMMIT = "1"</filename>), you can simply | ||
| 600 | use any Git command that allows you to view the history of | ||
| 601 | a repository. | ||
| 602 | Here is one method: | ||
| 603 | <literallayout class='monospaced'> | ||
| 604 | $ git log -p | ||
| 605 | </literallayout> | ||
| 606 | You need to realize, however, that this method does show | ||
| 607 | changes that are not significant (e.g. a package's size | ||
| 608 | changing by a few bytes). | ||
| 609 | </para> | ||
| 610 | |||
| 611 | <para> | ||
| 612 | A command-line tool called <filename>buildhistory-diff</filename> | ||
| 613 | does exist though that queries the Git repository and prints just | ||
| 614 | the differences that might be significant in human-readable form. | ||
| 615 | Here is an example: | ||
| 616 | <literallayout class='monospaced'> | ||
| 617 | $ ~/poky/poky/scripts/buildhistory-diff . HEAD^ | ||
| 618 | Changes to images/qemux86_64/eglibc/core-image-minimal (files-in-image.txt): | ||
| 619 | /etc/anotherpkg.conf was added | ||
| 620 | /sbin/anotherpkg was added | ||
| 621 | * (installed-package-names.txt): | ||
| 622 | * anotherpkg was added | ||
| 623 | Changes to images/qemux86_64/eglibc/core-image-minimal (installed-package-names.txt): | ||
| 624 | anotherpkg was added | ||
| 625 | packages/qemux86_64-poky-linux/v86d: PACKAGES: added "v86d-extras" | ||
| 626 | * PR changed from "r0" to "r1" | ||
| 627 | * PV changed from "0.1.10" to "0.1.12" | ||
| 628 | packages/qemux86_64-poky-linux/v86d/v86d: PKGSIZE changed from 110579 to 144381 (+30%) | ||
| 629 | * PR changed from "r0" to "r1" | ||
| 630 | * PV changed from "0.1.10" to "0.1.12" | ||
| 631 | </literallayout> | ||
| 632 | </para> | ||
| 633 | |||
| 634 | <para> | ||
| 635 | To see changes to the build history using a web interface, follow | ||
| 636 | the instruction in the <filename>README</filename> file here. | ||
| 637 | <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/buildhistory-web/'></ulink>. | ||
| 638 | </para> | ||
| 639 | |||
| 640 | <para> | ||
| 641 | Here is a sample screenshot of the interface: | ||
| 642 | <imagedata fileref="figures/buildhistory-web.png" align="center" scalefit="1" width="130%" contentdepth="130%" /> | ||
| 643 | </para> | ||
| 644 | </section> | ||
| 645 | </section> | ||
| 646 | </section> | ||
| 647 | |||
| 648 | </chapter> | ||
| 649 | <!-- | ||
| 650 | vim: expandtab tw=80 ts=4 | ||
| 651 | --> | ||
