diff options
Diffstat (limited to 'documentation/dev-manual')
| -rw-r--r-- | documentation/dev-manual/dev-manual-common-tasks.xml | 564 | ||||
| -rw-r--r-- | documentation/dev-manual/figures/buildhistory-web.png | bin | 0 -> 49966 bytes | |||
| -rw-r--r-- | documentation/dev-manual/figures/buildhistory.png | bin | 0 -> 44900 bytes |
3 files changed, 562 insertions, 2 deletions
diff --git a/documentation/dev-manual/dev-manual-common-tasks.xml b/documentation/dev-manual/dev-manual-common-tasks.xml index 13a84b9c22..0c2101fde9 100644 --- a/documentation/dev-manual/dev-manual-common-tasks.xml +++ b/documentation/dev-manual/dev-manual-common-tasks.xml | |||
| @@ -7432,8 +7432,8 @@ Some notes from Cal: | |||
| 7432 | BUILDHISTORY_COMMIT = "1" | 7432 | BUILDHISTORY_COMMIT = "1" |
| 7433 | </literallayout> | 7433 | </literallayout> |
| 7434 | For information on build history, see the | 7434 | For information on build history, see the |
| 7435 | "<ulink url='&YOCTO_DOCS_REF_URL;#maintaining-build-output-quality'>Maintaining Build Output Quality</ulink>" | 7435 | "<link linkend='maintaining-build-output-quality'>Maintaining Build Output Quality</link>" |
| 7436 | section in the Yocto Project Reference Manual. | 7436 | section. |
| 7437 | </para> | 7437 | </para> |
| 7438 | 7438 | ||
| 7439 | <note> | 7439 | <note> |
| @@ -9089,6 +9089,566 @@ Some notes from Cal: | |||
| 9089 | </section> | 9089 | </section> |
| 9090 | </section> | 9090 | </section> |
| 9091 | 9091 | ||
| 9092 | |||
| 9093 | |||
| 9094 | |||
| 9095 | <section id='maintaining-build-output-quality'> | ||
| 9096 | <title>Maintaining Build Output Quality</title> | ||
| 9097 | |||
| 9098 | <para> | ||
| 9099 | Many factors can influence the quality of a build. | ||
| 9100 | For example, if you upgrade a recipe to use a new version of an | ||
| 9101 | upstream software package or you experiment with some new | ||
| 9102 | configuration options, subtle changes can occur that you might | ||
| 9103 | not detect until later. | ||
| 9104 | Consider the case where your recipe is using a newer version of | ||
| 9105 | an upstream package. | ||
| 9106 | In this case, a new version of a piece of software might | ||
| 9107 | introduce an optional dependency on another library, which is | ||
| 9108 | auto-detected. | ||
| 9109 | If that library has already been built when the software is | ||
| 9110 | building, the software will link to the built library and that | ||
| 9111 | library will be pulled into your image along with the new | ||
| 9112 | software even if you did not want the library. | ||
| 9113 | </para> | ||
| 9114 | |||
| 9115 | <para> | ||
| 9116 | The | ||
| 9117 | <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-buildhistory'><filename>buildhistory</filename></ulink> | ||
| 9118 | class exists to help you maintain the quality of your build | ||
| 9119 | output. | ||
| 9120 | You can use the class to highlight unexpected and possibly | ||
| 9121 | unwanted changes in the build output. | ||
| 9122 | When you enable build history, it records information about the | ||
| 9123 | contents of each package and image and then commits that | ||
| 9124 | information to a local Git repository where you can examine | ||
| 9125 | the information. | ||
| 9126 | </para> | ||
| 9127 | |||
| 9128 | <para> | ||
| 9129 | The remainder of this section describes the following: | ||
| 9130 | <itemizedlist> | ||
| 9131 | <listitem><para> | ||
| 9132 | How you can enable and disable build history | ||
| 9133 | </para></listitem> | ||
| 9134 | <listitem><para> | ||
| 9135 | How to understand what the build history contains | ||
| 9136 | </para></listitem> | ||
| 9137 | <listitem><para> | ||
| 9138 | How to limit the information used for build history | ||
| 9139 | </para></listitem> | ||
| 9140 | <listitem><para> | ||
| 9141 | How to examine the build history from both a | ||
| 9142 | command-line and web interface | ||
| 9143 | </para></listitem> | ||
| 9144 | </itemizedlist> | ||
| 9145 | </para> | ||
| 9146 | |||
| 9147 | <section id='enabling-and-disabling-build-history'> | ||
| 9148 | <title>Enabling and Disabling Build History</title> | ||
| 9149 | |||
| 9150 | <para> | ||
| 9151 | Build history is disabled by default. | ||
| 9152 | To enable it, add the following <filename>INHERIT</filename> | ||
| 9153 | statement and set the | ||
| 9154 | <ulink url='&YOCTO_DOCS_REF_URL;#var-BUILDHISTORY_COMMIT'><filename>BUILDHISTORY_COMMIT</filename></ulink> | ||
| 9155 | variable to "1" at the end of your | ||
| 9156 | <filename>conf/local.conf</filename> file found in the | ||
| 9157 | <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>: | ||
| 9158 | <literallayout class='monospaced'> | ||
| 9159 | INHERIT += "buildhistory" | ||
| 9160 | BUILDHISTORY_COMMIT = "1" | ||
| 9161 | </literallayout> | ||
| 9162 | Enabling build history as previously described causes the | ||
| 9163 | OpenEmbedded build system to collect build output information | ||
| 9164 | and commit it as a single commit to a local | ||
| 9165 | <ulink url='&YOCTO_DOCS_OVERVIEW_URL;#git'>Git</ulink> | ||
| 9166 | repository. | ||
| 9167 | <note> | ||
| 9168 | Enabling build history increases your build times slightly, | ||
| 9169 | particularly for images, and increases the amount of disk | ||
| 9170 | space used during the build. | ||
| 9171 | </note> | ||
| 9172 | </para> | ||
| 9173 | |||
| 9174 | <para> | ||
| 9175 | You can disable build history by removing the previous | ||
| 9176 | statements from your <filename>conf/local.conf</filename> | ||
| 9177 | file. | ||
| 9178 | </para> | ||
| 9179 | </section> | ||
| 9180 | |||
| 9181 | <section id='understanding-what-the-build-history-contains'> | ||
| 9182 | <title>Understanding What the Build History Contains</title> | ||
| 9183 | |||
| 9184 | <para> | ||
| 9185 | Build history information is kept in | ||
| 9186 | <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-TOPDIR'><filename>TOPDIR</filename></ulink><filename>}/buildhistory</filename> | ||
| 9187 | in the Build Directory as defined by the | ||
| 9188 | <ulink url='&YOCTO_DOCS_REF_URL;#var-BUILDHISTORY_DIR'><filename>BUILDHISTORY_DIR</filename></ulink> | ||
| 9189 | variable. | ||
| 9190 | The following is an example abbreviated listing: | ||
| 9191 | <imagedata fileref="figures/buildhistory.png" align="center" width="6in" depth="4in" /> | ||
| 9192 | </para> | ||
| 9193 | |||
| 9194 | <para> | ||
| 9195 | At the top level, a <filename>metadata-revs</filename> | ||
| 9196 | file exists that lists the revisions of the repositories for | ||
| 9197 | the enabled layers when the build was produced. | ||
| 9198 | The rest of the data splits into separate | ||
| 9199 | <filename>packages</filename>, <filename>images</filename> | ||
| 9200 | and <filename>sdk</filename> directories, the contents of | ||
| 9201 | which are described as follows. | ||
| 9202 | </para> | ||
| 9203 | |||
| 9204 | <section id='build-history-package-information'> | ||
| 9205 | <title>Build History Package Information</title> | ||
| 9206 | |||
| 9207 | <para> | ||
| 9208 | The history for each package contains a text file that has | ||
| 9209 | name-value pairs with information about the package. | ||
| 9210 | For example, | ||
| 9211 | <filename>buildhistory/packages/i586-poky-linux/busybox/busybox/latest</filename> | ||
| 9212 | contains the following: | ||
| 9213 | <literallayout class='monospaced'> | ||
| 9214 | PV = 1.22.1 | ||
| 9215 | PR = r32 | ||
| 9216 | RPROVIDES = | ||
| 9217 | RDEPENDS = glibc (>= 2.20) update-alternatives-opkg | ||
| 9218 | RRECOMMENDS = busybox-syslog busybox-udhcpc update-rc.d | ||
| 9219 | PKGSIZE = 540168 | ||
| 9220 | FILES = /usr/bin/* /usr/sbin/* /usr/lib/busybox/* /usr/lib/lib*.so.* \ | ||
| 9221 | /etc /com /var /bin/* /sbin/* /lib/*.so.* /lib/udev/rules.d \ | ||
| 9222 | /usr/lib/udev/rules.d /usr/share/busybox /usr/lib/busybox/* \ | ||
| 9223 | /usr/share/pixmaps /usr/share/applications /usr/share/idl \ | ||
| 9224 | /usr/share/omf /usr/share/sounds /usr/lib/bonobo/servers | ||
| 9225 | FILELIST = /bin/busybox /bin/busybox.nosuid /bin/busybox.suid /bin/sh \ | ||
| 9226 | /etc/busybox.links.nosuid /etc/busybox.links.suid | ||
| 9227 | </literallayout> | ||
| 9228 | Most of these name-value pairs correspond to variables | ||
| 9229 | used to produce the package. | ||
| 9230 | The exceptions are <filename>FILELIST</filename>, which | ||
| 9231 | is the actual list of files in the package, and | ||
| 9232 | <filename>PKGSIZE</filename>, which is the total size of | ||
| 9233 | files in the package in bytes. | ||
| 9234 | </para> | ||
| 9235 | |||
| 9236 | <para> | ||
| 9237 | A file also exists that corresponds to the recipe from | ||
| 9238 | which the package came (e.g. | ||
| 9239 | <filename>buildhistory/packages/i586-poky-linux/busybox/latest</filename>): | ||
| 9240 | <literallayout class='monospaced'> | ||
| 9241 | PV = 1.22.1 | ||
| 9242 | PR = r32 | ||
| 9243 | DEPENDS = initscripts kern-tools-native update-rc.d-native \ | ||
| 9244 | virtual/i586-poky-linux-compilerlibs virtual/i586-poky-linux-gcc \ | ||
| 9245 | virtual/libc virtual/update-alternatives | ||
| 9246 | PACKAGES = busybox-ptest busybox-httpd busybox-udhcpd busybox-udhcpc \ | ||
| 9247 | busybox-syslog busybox-mdev busybox-hwclock busybox-dbg \ | ||
| 9248 | busybox-staticdev busybox-dev busybox-doc busybox-locale busybox | ||
| 9249 | </literallayout> | ||
| 9250 | </para> | ||
| 9251 | |||
| 9252 | <para> | ||
| 9253 | Finally, for those recipes fetched from a version control | ||
| 9254 | system (e.g., Git), a file exists that lists source | ||
| 9255 | revisions that are specified in the recipe and lists | ||
| 9256 | the actual revisions used during the build. | ||
| 9257 | Listed and actual revisions might differ when | ||
| 9258 | <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCREV'><filename>SRCREV</filename></ulink> | ||
| 9259 | is set to | ||
| 9260 | ${<ulink url='&YOCTO_DOCS_REF_URL;#var-AUTOREV'><filename>AUTOREV</filename></ulink>}. | ||
| 9261 | Here is an example assuming | ||
| 9262 | <filename>buildhistory/packages/qemux86-poky-linux/linux-yocto/latest_srcrev</filename>): | ||
| 9263 | <literallayout class='monospaced'> | ||
| 9264 | # SRCREV_machine = "38cd560d5022ed2dbd1ab0dca9642e47c98a0aa1" | ||
| 9265 | SRCREV_machine = "38cd560d5022ed2dbd1ab0dca9642e47c98a0aa1" | ||
| 9266 | # SRCREV_meta = "a227f20eff056e511d504b2e490f3774ab260d6f" | ||
| 9267 | SRCREV_meta = "a227f20eff056e511d504b2e490f3774ab260d6f" | ||
| 9268 | </literallayout> | ||
| 9269 | You can use the | ||
| 9270 | <filename>buildhistory-collect-srcrevs</filename> | ||
| 9271 | command with the <filename>-a</filename> option to | ||
| 9272 | collect the stored <filename>SRCREV</filename> values | ||
| 9273 | from build history and report them in a format suitable for | ||
| 9274 | use in global configuration (e.g., | ||
| 9275 | <filename>local.conf</filename> or a distro include file) | ||
| 9276 | to override floating <filename>AUTOREV</filename> values | ||
| 9277 | to a fixed set of revisions. | ||
| 9278 | Here is some example output from this command: | ||
| 9279 | <literallayout class='monospaced'> | ||
| 9280 | $ buildhistory-collect-srcrevs -a | ||
| 9281 | # i586-poky-linux | ||
| 9282 | SRCREV_pn-glibc = "b8079dd0d360648e4e8de48656c5c38972621072" | ||
| 9283 | SRCREV_pn-glibc-initial = "b8079dd0d360648e4e8de48656c5c38972621072" | ||
| 9284 | SRCREV_pn-opkg-utils = "53274f087565fd45d8452c5367997ba6a682a37a" | ||
| 9285 | SRCREV_pn-kmod = "fd56638aed3fe147015bfa10ed4a5f7491303cb4" | ||
| 9286 | # x86_64-linux | ||
| 9287 | SRCREV_pn-gtk-doc-stub-native = "1dea266593edb766d6d898c79451ef193eb17cfa" | ||
| 9288 | SRCREV_pn-dtc-native = "65cc4d2748a2c2e6f27f1cf39e07a5dbabd80ebf" | ||
| 9289 | SRCREV_pn-update-rc.d-native = "eca680ddf28d024954895f59a241a622dd575c11" | ||
| 9290 | SRCREV_glibc_pn-cross-localedef-native = "b8079dd0d360648e4e8de48656c5c38972621072" | ||
| 9291 | SRCREV_localedef_pn-cross-localedef-native = "c833367348d39dad7ba018990bfdaffaec8e9ed3" | ||
| 9292 | SRCREV_pn-prelink-native = "faa069deec99bf61418d0bab831c83d7c1b797ca" | ||
| 9293 | SRCREV_pn-opkg-utils-native = "53274f087565fd45d8452c5367997ba6a682a37a" | ||
| 9294 | SRCREV_pn-kern-tools-native = "23345b8846fe4bd167efdf1bd8a1224b2ba9a5ff" | ||
| 9295 | SRCREV_pn-kmod-native = "fd56638aed3fe147015bfa10ed4a5f7491303cb4" | ||
| 9296 | # qemux86-poky-linux | ||
| 9297 | SRCREV_machine_pn-linux-yocto = "38cd560d5022ed2dbd1ab0dca9642e47c98a0aa1" | ||
| 9298 | SRCREV_meta_pn-linux-yocto = "a227f20eff056e511d504b2e490f3774ab260d6f" | ||
| 9299 | # all-poky-linux | ||
| 9300 | SRCREV_pn-update-rc.d = "eca680ddf28d024954895f59a241a622dd575c11" | ||
| 9301 | </literallayout> | ||
| 9302 | <note> | ||
| 9303 | Here are some notes on using the | ||
| 9304 | <filename>buildhistory-collect-srcrevs</filename> | ||
| 9305 | command: | ||
| 9306 | <itemizedlist> | ||
| 9307 | <listitem><para> | ||
| 9308 | By default, only values where the | ||
| 9309 | <filename>SRCREV</filename> was not hardcoded | ||
| 9310 | (usually when <filename>AUTOREV</filename> | ||
| 9311 | is used) are reported. | ||
| 9312 | Use the <filename>-a</filename> option to | ||
| 9313 | see all <filename>SRCREV</filename> values. | ||
| 9314 | </para></listitem> | ||
| 9315 | <listitem><para> | ||
| 9316 | The output statements might not have any effect | ||
| 9317 | if overrides are applied elsewhere in the | ||
| 9318 | build system configuration. | ||
| 9319 | Use the <filename>-f</filename> option to add | ||
| 9320 | the <filename>forcevariable</filename> override | ||
| 9321 | to each output line if you need to work around | ||
| 9322 | this restriction. | ||
| 9323 | </para></listitem> | ||
| 9324 | <listitem><para> | ||
| 9325 | The script does apply special handling when | ||
| 9326 | building for multiple machines. | ||
| 9327 | However, the script does place a comment before | ||
| 9328 | each set of values that specifies which | ||
| 9329 | triplet to which they belong as previously | ||
| 9330 | shown (e.g., | ||
| 9331 | <filename>i586-poky-linux</filename>). | ||
| 9332 | </para></listitem> | ||
| 9333 | </itemizedlist> | ||
| 9334 | </note> | ||
| 9335 | </para> | ||
| 9336 | </section> | ||
| 9337 | |||
| 9338 | <section id='build-history-image-information'> | ||
| 9339 | <title>Build History Image Information</title> | ||
| 9340 | |||
| 9341 | <para> | ||
| 9342 | The files produced for each image are as follows: | ||
| 9343 | <itemizedlist> | ||
| 9344 | <listitem><para> | ||
| 9345 | <filename>image-files:</filename> | ||
| 9346 | A directory containing selected files from the root | ||
| 9347 | filesystem. | ||
| 9348 | The files are defined by | ||
| 9349 | <ulink url='&YOCTO_DOCS_REF_URL;#var-BUILDHISTORY_IMAGE_FILES'><filename>BUILDHISTORY_IMAGE_FILES</filename></ulink>. | ||
| 9350 | </para></listitem> | ||
| 9351 | <listitem><para> | ||
| 9352 | <filename>build-id.txt:</filename> | ||
| 9353 | Human-readable information about the build | ||
| 9354 | configuration and metadata source revisions. | ||
| 9355 | This file contains the full build header as printed | ||
| 9356 | by BitBake. | ||
| 9357 | </para></listitem> | ||
| 9358 | <listitem><para> | ||
| 9359 | <filename>*.dot:</filename> | ||
| 9360 | Dependency graphs for the image that are | ||
| 9361 | compatible with <filename>graphviz</filename>. | ||
| 9362 | </para></listitem> | ||
| 9363 | <listitem><para> | ||
| 9364 | <filename>files-in-image.txt:</filename> | ||
| 9365 | A list of files in the image with permissions, | ||
| 9366 | owner, group, size, and symlink information. | ||
| 9367 | </para></listitem> | ||
| 9368 | <listitem><para> | ||
| 9369 | <filename>image-info.txt:</filename> | ||
| 9370 | A text file containing name-value pairs with | ||
| 9371 | information about the image. | ||
| 9372 | See the following listing example for more | ||
| 9373 | information. | ||
| 9374 | </para></listitem> | ||
| 9375 | <listitem><para> | ||
| 9376 | <filename>installed-package-names.txt:</filename> | ||
| 9377 | A list of installed packages by name only. | ||
| 9378 | </para></listitem> | ||
| 9379 | <listitem><para> | ||
| 9380 | <filename>installed-package-sizes.txt:</filename> | ||
| 9381 | A list of installed packages ordered by size. | ||
| 9382 | </para></listitem> | ||
| 9383 | <listitem><para> | ||
| 9384 | <filename>installed-packages.txt:</filename> | ||
| 9385 | A list of installed packages with full package | ||
| 9386 | filenames. | ||
| 9387 | </para></listitem> | ||
| 9388 | </itemizedlist> | ||
| 9389 | <note> | ||
| 9390 | Installed package information is able to be gathered | ||
| 9391 | and produced even if package management is disabled | ||
| 9392 | for the final image. | ||
| 9393 | </note> | ||
| 9394 | </para> | ||
| 9395 | |||
| 9396 | <para> | ||
| 9397 | Here is an example of <filename>image-info.txt</filename>: | ||
| 9398 | <literallayout class='monospaced'> | ||
| 9399 | DISTRO = poky | ||
| 9400 | DISTRO_VERSION = 1.7 | ||
| 9401 | USER_CLASSES = buildstats image-mklibs image-prelink | ||
| 9402 | IMAGE_CLASSES = image_types | ||
| 9403 | IMAGE_FEATURES = debug-tweaks | ||
| 9404 | IMAGE_LINGUAS = | ||
| 9405 | IMAGE_INSTALL = packagegroup-core-boot run-postinsts | ||
| 9406 | BAD_RECOMMENDATIONS = | ||
| 9407 | NO_RECOMMENDATIONS = | ||
| 9408 | PACKAGE_EXCLUDE = | ||
| 9409 | ROOTFS_POSTPROCESS_COMMAND = write_package_manifest; license_create_manifest; \ | ||
| 9410 | write_image_manifest ; buildhistory_list_installed_image ; \ | ||
| 9411 | buildhistory_get_image_installed ; ssh_allow_empty_password; \ | ||
| 9412 | postinst_enable_logging; rootfs_update_timestamp ; ssh_disable_dns_lookup ; | ||
| 9413 | IMAGE_POSTPROCESS_COMMAND = buildhistory_get_imageinfo ; | ||
| 9414 | IMAGESIZE = 6900 | ||
| 9415 | </literallayout> | ||
| 9416 | Other than <filename>IMAGESIZE</filename>, which is the | ||
| 9417 | total size of the files in the image in Kbytes, the | ||
| 9418 | name-value pairs are variables that may have influenced the | ||
| 9419 | content of the image. | ||
| 9420 | This information is often useful when you are trying to | ||
| 9421 | determine why a change in the package or file | ||
| 9422 | listings has occurred. | ||
| 9423 | </para> | ||
| 9424 | </section> | ||
| 9425 | |||
| 9426 | <section id='using-build-history-to-gather-image-information-only'> | ||
| 9427 | <title>Using Build History to Gather Image Information Only</title> | ||
| 9428 | |||
| 9429 | <para> | ||
| 9430 | As you can see, build history produces image information, | ||
| 9431 | including dependency graphs, so you can see why something | ||
| 9432 | was pulled into the image. | ||
| 9433 | If you are just interested in this information and not | ||
| 9434 | interested in collecting specific package or SDK | ||
| 9435 | information, you can enable writing only image information | ||
| 9436 | without any history by adding the following to your | ||
| 9437 | <filename>conf/local.conf</filename> file found in the | ||
| 9438 | <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>: | ||
| 9439 | <literallayout class='monospaced'> | ||
| 9440 | INHERIT += "buildhistory" | ||
| 9441 | BUILDHISTORY_COMMIT = "0" | ||
| 9442 | BUILDHISTORY_FEATURES = "image" | ||
| 9443 | </literallayout> | ||
| 9444 | Here, you set the | ||
| 9445 | <ulink url='&YOCTO_DOCS_REF_URL;#var-BUILDHISTORY_FEATURES'><filename>BUILDHISTORY_FEATURES</filename></ulink> | ||
| 9446 | variable to use the image feature only. | ||
| 9447 | </para> | ||
| 9448 | </section> | ||
| 9449 | |||
| 9450 | <section id='build-history-sdk-information'> | ||
| 9451 | <title>Build History SDK Information</title> | ||
| 9452 | |||
| 9453 | <para> | ||
| 9454 | Build history collects similar information on the contents | ||
| 9455 | of SDKs | ||
| 9456 | (e.g. <filename>bitbake -c populate_sdk imagename</filename>) | ||
| 9457 | as compared to information it collects for images. | ||
| 9458 | Furthermore, this information differs depending on whether | ||
| 9459 | an extensible or standard SDK is being produced. | ||
| 9460 | </para> | ||
| 9461 | |||
| 9462 | <para> | ||
| 9463 | The following list shows the files produced for SDKs: | ||
| 9464 | <itemizedlist> | ||
| 9465 | <listitem><para> | ||
| 9466 | <filename>files-in-sdk.txt:</filename> | ||
| 9467 | A list of files in the SDK with permissions, | ||
| 9468 | owner, group, size, and symlink information. | ||
| 9469 | This list includes both the host and target parts | ||
| 9470 | of the SDK. | ||
| 9471 | </para></listitem> | ||
| 9472 | <listitem><para> | ||
| 9473 | <filename>sdk-info.txt:</filename> | ||
| 9474 | A text file containing name-value pairs with | ||
| 9475 | information about the SDK. | ||
| 9476 | See the following listing example for more | ||
| 9477 | information. | ||
| 9478 | </para></listitem> | ||
| 9479 | <listitem><para> | ||
| 9480 | <filename>sstate-task-sizes.txt:</filename> | ||
| 9481 | A text file containing name-value pairs with | ||
| 9482 | information about task group sizes | ||
| 9483 | (e.g. <filename>do_populate_sysroot</filename> | ||
| 9484 | tasks have a total size). | ||
| 9485 | The <filename>sstate-task-sizes.txt</filename> file | ||
| 9486 | exists only when an extensible SDK is created. | ||
| 9487 | </para></listitem> | ||
| 9488 | <listitem><para> | ||
| 9489 | <filename>sstate-package-sizes.txt:</filename> | ||
| 9490 | A text file containing name-value pairs with | ||
| 9491 | information for the shared-state packages and | ||
| 9492 | sizes in the SDK. | ||
| 9493 | The <filename>sstate-package-sizes.txt</filename> | ||
| 9494 | file exists only when an extensible SDK is created. | ||
| 9495 | </para></listitem> | ||
| 9496 | <listitem><para> | ||
| 9497 | <filename>sdk-files:</filename> | ||
| 9498 | A folder that contains copies of the files | ||
| 9499 | mentioned in | ||
| 9500 | <filename>BUILDHISTORY_SDK_FILES</filename> if the | ||
| 9501 | files are present in the output. | ||
| 9502 | Additionally, the default value of | ||
| 9503 | <filename>BUILDHISTORY_SDK_FILES</filename> is | ||
| 9504 | specific to the extensible SDK although you can | ||
| 9505 | set it differently if you would like to pull in | ||
| 9506 | specific files from the standard SDK.</para> | ||
| 9507 | |||
| 9508 | <para>The default files are | ||
| 9509 | <filename>conf/local.conf</filename>, | ||
| 9510 | <filename>conf/bblayers.conf</filename>, | ||
| 9511 | <filename>conf/auto.conf</filename>, | ||
| 9512 | <filename>conf/locked-sigs.inc</filename>, and | ||
| 9513 | <filename>conf/devtool.conf</filename>. | ||
| 9514 | Thus, for an extensible SDK, these files get | ||
| 9515 | copied into the <filename>sdk-files</filename> | ||
| 9516 | directory. | ||
| 9517 | </para></listitem> | ||
| 9518 | <listitem><para> | ||
| 9519 | The following information appears under | ||
| 9520 | each of the <filename>host</filename> | ||
| 9521 | and <filename>target</filename> directories | ||
| 9522 | for the portions of the SDK that run on the host | ||
| 9523 | and on the target, respectively: | ||
| 9524 | <note> | ||
| 9525 | The following files for the most part are empty | ||
| 9526 | when producing an extensible SDK because this | ||
| 9527 | type of SDK is not constructed from packages | ||
| 9528 | as is the standard SDK. | ||
| 9529 | </note> | ||
| 9530 | <itemizedlist> | ||
| 9531 | <listitem><para> | ||
| 9532 | <filename>depends.dot:</filename> | ||
| 9533 | Dependency graph for the SDK that is | ||
| 9534 | compatible with | ||
| 9535 | <filename>graphviz</filename>. | ||
| 9536 | </para></listitem> | ||
| 9537 | <listitem><para> | ||
| 9538 | <filename>installed-package-names.txt:</filename> | ||
| 9539 | A list of installed packages by name only. | ||
| 9540 | </para></listitem> | ||
| 9541 | <listitem><para> | ||
| 9542 | <filename>installed-package-sizes.txt:</filename> | ||
| 9543 | A list of installed packages ordered by size. | ||
| 9544 | </para></listitem> | ||
| 9545 | <listitem><para> | ||
| 9546 | <filename>installed-packages.txt:</filename> | ||
| 9547 | A list of installed packages with full | ||
| 9548 | package filenames. | ||
| 9549 | </para></listitem> | ||
| 9550 | </itemizedlist> | ||
| 9551 | </para></listitem> | ||
| 9552 | </itemizedlist> | ||
| 9553 | </para> | ||
| 9554 | |||
| 9555 | <para> | ||
| 9556 | Here is an example of <filename>sdk-info.txt</filename>: | ||
| 9557 | <literallayout class='monospaced'> | ||
| 9558 | DISTRO = poky | ||
| 9559 | DISTRO_VERSION = 1.3+snapshot-20130327 | ||
| 9560 | SDK_NAME = poky-glibc-i686-arm | ||
| 9561 | SDK_VERSION = 1.3+snapshot | ||
| 9562 | SDKMACHINE = | ||
| 9563 | SDKIMAGE_FEATURES = dev-pkgs dbg-pkgs | ||
| 9564 | BAD_RECOMMENDATIONS = | ||
| 9565 | SDKSIZE = 352712 | ||
| 9566 | </literallayout> | ||
| 9567 | Other than <filename>SDKSIZE</filename>, which is the | ||
| 9568 | total size of the files in the SDK in Kbytes, the | ||
| 9569 | name-value pairs are variables that might have influenced | ||
| 9570 | the content of the SDK. | ||
| 9571 | This information is often useful when you are trying to | ||
| 9572 | determine why a change in the package or file listings | ||
| 9573 | has occurred. | ||
| 9574 | </para> | ||
| 9575 | </section> | ||
| 9576 | |||
| 9577 | <section id='examining-build-history-information'> | ||
| 9578 | <title>Examining Build History Information</title> | ||
| 9579 | |||
| 9580 | <para> | ||
| 9581 | You can examine build history output from the command | ||
| 9582 | line or from a web interface. | ||
| 9583 | </para> | ||
| 9584 | |||
| 9585 | <para> | ||
| 9586 | To see any changes that have occurred (assuming you have | ||
| 9587 | <ulink url='&YOCTO_DOCS_REF_URL;#var-BUILDHISTORY_COMMIT'><filename>BUILDHISTORY_COMMIT</filename></ulink><filename> = "1"</filename>), | ||
| 9588 | you can simply use any Git command that allows you to | ||
| 9589 | view the history of a repository. | ||
| 9590 | Here is one method: | ||
| 9591 | <literallayout class='monospaced'> | ||
| 9592 | $ git log -p | ||
| 9593 | </literallayout> | ||
| 9594 | You need to realize, however, that this method does show | ||
| 9595 | changes that are not significant (e.g. a package's size | ||
| 9596 | changing by a few bytes). | ||
| 9597 | </para> | ||
| 9598 | |||
| 9599 | <para> | ||
| 9600 | A command-line tool called | ||
| 9601 | <filename>buildhistory-diff</filename> does exist, though, | ||
| 9602 | that queries the Git repository and prints just the | ||
| 9603 | differences that might be significant in human-readable | ||
| 9604 | form. | ||
| 9605 | Here is an example: | ||
| 9606 | <literallayout class='monospaced'> | ||
| 9607 | $ ~/poky/poky/scripts/buildhistory-diff . HEAD^ | ||
| 9608 | Changes to images/qemux86_64/glibc/core-image-minimal (files-in-image.txt): | ||
| 9609 | /etc/anotherpkg.conf was added | ||
| 9610 | /sbin/anotherpkg was added | ||
| 9611 | * (installed-package-names.txt): | ||
| 9612 | * anotherpkg was added | ||
| 9613 | Changes to images/qemux86_64/glibc/core-image-minimal (installed-package-names.txt): | ||
| 9614 | anotherpkg was added | ||
| 9615 | packages/qemux86_64-poky-linux/v86d: PACKAGES: added "v86d-extras" | ||
| 9616 | * PR changed from "r0" to "r1" | ||
| 9617 | * PV changed from "0.1.10" to "0.1.12" | ||
| 9618 | packages/qemux86_64-poky-linux/v86d/v86d: PKGSIZE changed from 110579 to 144381 (+30%) | ||
| 9619 | * PR changed from "r0" to "r1" | ||
| 9620 | * PV changed from "0.1.10" to "0.1.12" | ||
| 9621 | </literallayout> | ||
| 9622 | <note> | ||
| 9623 | The <filename>buildhistory-diff</filename> tool | ||
| 9624 | requires the <filename>GitPython</filename> package. | ||
| 9625 | Be sure to install it using Pip3 as follows: | ||
| 9626 | <literallayout class='monospaced'> | ||
| 9627 | $ pip3 install GitPython --user | ||
| 9628 | </literallayout> | ||
| 9629 | Alternatively, you can install | ||
| 9630 | <filename>python3-git</filename> using the appropriate | ||
| 9631 | distribution package manager (e.g. | ||
| 9632 | <filename>apt-get</filename>, <filename>dnf</filename>, | ||
| 9633 | or <filename>zipper</filename>). | ||
| 9634 | </note> | ||
| 9635 | </para> | ||
| 9636 | |||
| 9637 | <para> | ||
| 9638 | To see changes to the build history using a web interface, | ||
| 9639 | follow the instruction in the <filename>README</filename> | ||
| 9640 | file here. | ||
| 9641 | <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/buildhistory-web/'></ulink>. | ||
| 9642 | </para> | ||
| 9643 | |||
| 9644 | <para> | ||
| 9645 | Here is a sample screenshot of the interface: | ||
| 9646 | <imagedata fileref="figures/buildhistory-web.png" align="center" scalefit="1" width="130%" contentdepth="130%" /> | ||
| 9647 | </para> | ||
| 9648 | </section> | ||
| 9649 | </section> | ||
| 9650 | </section> | ||
| 9651 | |||
| 9092 | <section id="performing-automated-runtime-testing"> | 9652 | <section id="performing-automated-runtime-testing"> |
| 9093 | <title>Performing Automated Runtime Testing</title> | 9653 | <title>Performing Automated Runtime Testing</title> |
| 9094 | 9654 | ||
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