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-rw-r--r--documentation/ref-manual/ref-classes.xml118
-rw-r--r--documentation/ref-manual/ref-variables.xml2
2 files changed, 62 insertions, 58 deletions
diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index f24f5946b4..b5d53cd70b 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -2262,6 +2262,67 @@
2262 </para> 2262 </para>
2263</section> 2263</section>
2264 2264
2265<section id='ref-classes-rm-work'>
2266 <title><filename>rm_work.bbclass</filename></title>
2267
2268 <para>
2269 The <filename>rm_work</filename> class supports deletion of temporary
2270 workspace, which can ease your hard drive demands during builds.
2271 </para>
2272
2273 <para>
2274 The OpenEmbedded build system can use a substantial amount of disk
2275 space during the build process.
2276 A portion of this space is the work files under the
2277 <filename>${TMPDIR}/work</filename> directory for each recipe.
2278 Once the build system generates the packages for a recipe, the work
2279 files for that recipe are no longer needed.
2280 However, by default, the build system preserves these files
2281 for inspection and possible debugging purposes.
2282 If you would rather have these files deleted to save disk space
2283 as the build progresses, you can enable <filename>rm_work</filename>
2284 by adding the following to your <filename>local.conf</filename> file,
2285 which is found in the
2286 <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>.
2287 <literallayout class='monospaced'>
2288 INHERIT += "rm_work"
2289 </literallayout>
2290 If you are modifying and building source code out of the work directory
2291 for a recipe, enabling <filename>rm_work</filename> will potentially
2292 result in your changes to the source being lost.
2293 To exclude some recipes from having their work directories deleted by
2294 <filename>rm_work</filename>, you can add the names of the recipe or
2295 recipes you are working on to the <filename>RM_WORK_EXCLUDE</filename>
2296 variable, which can also be set in your <filename>local.conf</filename>
2297 file.
2298 Here is an example:
2299 <literallayout class='monospaced'>
2300 RM_WORK_EXCLUDE += "busybox eglibc"
2301 </literallayout>
2302 </para>
2303</section>
2304
2305<section id='ref-classes-rootfs*'>
2306 <title><filename>rootfs*.bbclass</filename></title>
2307
2308 <para>
2309 These classes add support for creating images in several formats.
2310 First, the root filesystem is created from packages using
2311 one of the <filename>rootfs_*.bbclass</filename>
2312 files (depending on the package format used) and then the image is created.
2313 <itemizedlist>
2314 <listitem><para>The
2315 <filename><link linkend='var-IMAGE_FSTYPES'>IMAGE_FSTYPES</link></filename>
2316 variable controls the types of images to generate.
2317 </para></listitem>
2318 <listitem><para>The
2319 <filename><link linkend='var-IMAGE_INSTALL'>IMAGE_INSTALL</link></filename>
2320 variable controls the list of packages to install into the
2321 image.</para></listitem>
2322 </itemizedlist>
2323 </para>
2324</section>
2325
2265<section id='ref-classes-scons'> 2326<section id='ref-classes-scons'>
2266 <title><filename>scons.bbclass</filename></title> 2327 <title><filename>scons.bbclass</filename></title>
2267 2328
@@ -2459,27 +2520,6 @@
2459 </para> 2520 </para>
2460</section> 2521</section>
2461 2522
2462<section id='ref-classes-rootfs*'>
2463 <title><filename>rootfs*.bbclass</filename></title>
2464
2465 <para>
2466 These classes add support for creating images in several formats.
2467 First, the root filesystem is created from packages using
2468 one of the <filename>rootfs_*.bbclass</filename>
2469 files (depending on the package format used) and then the image is created.
2470 <itemizedlist>
2471 <listitem><para>The
2472 <filename><link linkend='var-IMAGE_FSTYPES'>IMAGE_FSTYPES</link></filename>
2473 variable controls the types of images to generate.
2474 </para></listitem>
2475 <listitem><para>The
2476 <filename><link linkend='var-IMAGE_INSTALL'>IMAGE_INSTALL</link></filename>
2477 variable controls the list of packages to install into the
2478 image.</para></listitem>
2479 </itemizedlist>
2480 </para>
2481</section>
2482
2483<section id='ref-classes-sanity'> 2523<section id='ref-classes-sanity'>
2484 <title>Host System Sanity Checks - <filename>sanity.bbclass</filename></title> 2524 <title>Host System Sanity Checks - <filename>sanity.bbclass</filename></title>
2485 2525
@@ -2493,42 +2533,6 @@
2493 </para> 2533 </para>
2494</section> 2534</section>
2495 2535
2496<section id='ref-classes-rm-work'>
2497 <title>Removing Work Files During the Build - <filename>rm_work.bbclass</filename></title>
2498
2499 <para>
2500 The OpenEmbedded build system can use a substantial amount of disk
2501 space during the build process.
2502 A portion of this space is the work files under the
2503 <filename>${TMPDIR}/work</filename> directory for each recipe.
2504 Once the build system generates the packages for a recipe, the work
2505 files for that recipe are no longer needed.
2506 However, by default, the build system preserves these files
2507 for inspection and possible debugging purposes.
2508 If you would rather have these files deleted to save disk space
2509 as the build progresses, you can enable <filename>rm_work</filename>
2510 by adding the following to your <filename>local.conf</filename> file,
2511 which is found in the
2512 <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>.
2513 <literallayout class='monospaced'>
2514 INHERIT += "rm_work"
2515 </literallayout>
2516 If you are modifying and building source code out of the work directory
2517 for a recipe, enabling <filename>rm_work</filename> will potentially
2518 result in your changes to the source being lost.
2519 To exclude some recipes from having their work directories deleted by
2520 <filename>rm_work</filename>, you can add the names of the recipe or
2521 recipes you are working on to the <filename>RM_WORK_EXCLUDE</filename>
2522 variable, which can also be set in your <filename>local.conf</filename>
2523 file.
2524 Here is an example:
2525 <literallayout class='monospaced'>
2526 RM_WORK_EXCLUDE += "busybox eglibc"
2527 </literallayout>
2528 </para>
2529</section>
2530
2531
2532<section id='ref-classes-siteinfo'> 2536<section id='ref-classes-siteinfo'>
2533 <title>Autotools Configuration Data Cache - <filename>siteinfo.bbclass</filename></title> 2537 <title>Autotools Configuration Data Cache - <filename>siteinfo.bbclass</filename></title>
2534 2538
diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index 60e24ef565..7ece12cc2c 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -5274,7 +5274,7 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
5274 With <filename>rm_work</filename> enabled, this 5274 With <filename>rm_work</filename> enabled, this
5275 variable specifies a list of recipes whose work directories 5275 variable specifies a list of recipes whose work directories
5276 should not be removed. 5276 should not be removed.
5277 See the "<link linkend='ref-classes-rm-work'>Removing Work Files During the Build - <filename>rm_work.bbclass</filename></link>" 5277 See the "<link linkend='ref-classes-rm-work'><filename>rm_work.bbclass</filename></link>"
5278 section for more details. 5278 section for more details.
5279 </para> 5279 </para>
5280 </glossdef> 5280 </glossdef>