最終更新:2012-05-19 (土) 09:40:49 (4358d)
BitBake
Top / BitBake
http://bitbake.berlios.de/manual/
BitBake is the build tool used by OpenEmbedded and was originally used by the OpenHandhelds.org and OpenZaurus communities.
概要
BitBake is, at its simplest, a tool for executing tasks and managing metadata. As such, its similarities to GNU make and other build tools are readily apparent. It was inspired by Portage, the package management system used by the Gentoo Linux distribution.
BitBake is the basis of the OpenEmbedded project, which is being used to build and maintain a number of embedded Linux distributions, including OpenZaurus and Familiar.
OpenEmbedded
BitBakeレシピの集合として維持、開発されており、Gentooのebuildシステムに似ている。 BitBakeは、パッケージのソースのURL、依存関係、コンパイルオプション、インストールオプションをまとめたものとなっている。 ビルドする場合にはこれらの情報を使って、依存関係を解決し、パッケージをクロスコンパイルし、パックし、ターゲットの機器にインストールできるようにする。 ルートファイルシステムとカーネルを含んだ完全なイメージを作成することもできる。 最初の段階として、フレームワークはターゲットプラットフォーム用のクロスコンパイラツールチェーンをビルドする。
コマンド
$ bitbake omap3-console-image $ bitbake u-boot-omap3 $ bitbake x-load $ bitbake virtual/xserver $ bitbake virtual/kernel #Builds the appropriate kernel for your device. $ bitbake linux-omap3-2.6.32 #2.6.32がビルドされる
タスク
$ bitbake omap3-console-image -c listtasks NOTE: Handling BitBake files: | (7291/7291) [100 %] Parsing of 7291 .bb files complete (6862 cached, 429 parsed). 7685 targets, 312 skipped, 2 masked, 0 errors. Build Configuration: BB_VERSION = "1.10.2" METADATA_BRANCH = "overo" METADATA_REVISION = "b4574a2" TARGET_ARCH = "arm" TARGET_OS = "linux-gnueabi" MACHINE = "overo" DISTRO = "angstrom" DISTRO_VERSION = "2010.7-test-20110314" TARGET_FPU = "hard" NOTE: Resolving any missing task queue dependencies NOTE: Preparing runqueue NOTE: Executing runqueue do_devshell do_listtasks do_package_update_index_ipk do_compile do_deploy_to do_package_stage_all do_recipe_sanity_all do_rootfs do_checkuri do_clean do_configure do_cleanall do_fetch do_distclean do_populate_sysroot do_setscene do_package do_qa_staging do_distribute_sources do_unpack do_install do_distribute_sources_all do_checkuriall do_buildall do_package_write do_package_stage do_recipe_sanity do_patch do_fetchall do_build do_package_write_ipk do_qa_configure do_distsrcall NOTE: Running task 1 of 1 (ID: 0, ~/overo-oe/org.openembedded.dev/recipes/images/omap3-console-image.bb, do_listtasks) NOTE: package omap3-console-image-1.0-r0: task do_listtasks: Started NOTE: package omap3-console-image-1.0-r0: task do_listtasks: Succeeded NOTE: Tasks Summary: Attempted 1 tasks of which 0 didn't need to be rerun and 0 failed.
タスク2
$ bitbake linux-omap3-2.6.32 -c listtasks NOTE: Handling BitBake files: | (7291/7291) [100 %] Parsing of 7291 .bb files complete (6862 cached, 429 parsed). 7685 targets, 312 skipped, 2 masked, 0 errors. Build Configuration: BB_VERSION = "1.10.2" METADATA_BRANCH = "overo" METADATA_REVISION = "b4574a2" TARGET_ARCH = "arm" TARGET_OS = "linux-gnueabi" MACHINE = "overo" DISTRO = "angstrom" DISTRO_VERSION = "2010.7-test-20110316" TARGET_FPU = "hard" NOTE: Resolving any missing task queue dependencies NOTE: Preparing runqueue NOTE: Executing runqueue do_devshell do_listtasks do_package_update_index_ipk do_compile do_package_stage_all do_deploy do_recipe_sanity_all do_checkuri do_clean do_configure do_cleanall do_fetch do_distclean do_populate_sysroot do_devicetree_image do_compile_kernelmodules do_setscene do_package do_qa_staging do_distribute_sources do_unpack do_install do_distribute_sources_all do_checkuriall do_buildall do_package_write do_sizecheck do_uboot_mkimage do_package_stage do_recipe_sanity do_patch do_fetchall do_build do_package_write_ipk do_qa_configure do_menuconfig do_distsrcall NOTE: Running task 1 of 1 (ID: 0, ~/overo-oe/org.openembedded.dev/recipes/linux/linux-omap3_2.6.32.bb, do_listtasks) NOTE: package linux-omap3-2.6.32-r97: task do_listtasks: Started NOTE: package linux-omap3-2.6.32-r97: task do_listtasks: Succeeded NOTE: Tasks Summary: Attempted 1 tasks of which 0 didn't need to be rerun and 0 failed.
ヘルプ
Usage: bitbake [options] [package ...]
Executes the specified task (default is 'build') for a given set of BitBake files.
It expects that BBFILES is defined, which is a space separated list of files to
be executed. BBFILES does support wildcards.
Default BBFILES are the .bb files in the current directory.
Options:
--version show program's version number and exit
-h, --help show this help message and exit
-b BUILDFILE, --buildfile=BUILDFILE
execute the task against this .bb file, rather than a
package from BBFILES.
-k, --continue continue as much as possible after an error. While the
target that failed, and those that depend on it,
cannot be remade, the other dependencies of these
targets can be processed all the same.
-a, --tryaltconfigs continue with builds by trying to use alternative
providers where possible.
-f, --force force run of specified cmd, regardless of stamp status
-i, --interactive drop into the interactive mode also called the BitBake
shell.
-c CMD, --cmd=CMD Specify task to execute. Note that this only executes
the specified task for the providee and the packages
it depends on, i.e. 'compile' does not implicitly call
stage for the dependencies (IOW: use only if you know
what you are doing). Depending on the base.bbclass a
listtasks tasks is defined and will show available
tasks
-r FILE, --read=FILE read the specified file before bitbake.conf
-v, --verbose output more chit-chat to the terminal
-D, --debug Increase the debug level. You can specify this more
than once.
-n, --dry-run don't execute, just go through the motions
-p, --parse-only quit after parsing the BB files (developers only)
-d, --disable-psyco disable using the psyco just-in-time compiler (not
recommended)
-s, --show-versions show current and preferred versions of all packages
-e, --environment show the global or per-package environment (this is
what used to be bbread)
-g, --graphviz emit the dependency trees of the specified packages in
the dot syntax
-I EXTRA_ASSUME_PROVIDED, --ignore-deps=EXTRA_ASSUME_PROVIDED
Assume these dependencies don't exist and are already
provided (equivalent to ASSUME_PROVIDED). Useful to
make dependency graphs more appealing
-l DEBUG_DOMAINS, --log-domains=DEBUG_DOMAINS
Show debug logging for the specified logging domains
-P, --profile profile the command and print a report
-u UI, --ui=UI userinterface to use
--revisions-changed Set the exit code depending on whether upstream
floating revisions have changed or not
クロスコンパイラ
$ bitbake meta-toolchain
http://www.openembedded.org/index.php/Cross_Compiler
パッチをあてる場合
$ bitbake -c clean omap3-console-image $ bitbake -c compile omap3-console-image //ソースコードとかをフェッチしてくる -なんかパッチ当てる - $ bitbake -f -c complie omap3-console-image //-fをつけて強制再コンパイル $ bitbake -f -c deploy omap3-console-image
