本文详细介绍了Bitbake命令的使用和语法，包括如何执行特定任务、查看recipe环境设置、显示支持的task等。还展示了如何通过Bitbake执行不同recipe的任务，以及如何处理多个recipe的组合任务。同时，文中提到了Bitbake遵循任务间的依赖关系，以及如何查看任务执行顺序。最后，提供了几个实用的Bitbake命令示例。
Bitbake命令的使用和语法：
$ bitbake -h
Usage: bitbake [options] [recipename/target recipe:do_task ...]
Executes the specified task (default is 'build') for a given set of target recipes (.bb files).
It is assumed there is a conf/bblayers.conf available in cwd or in BBPATH which
will provide the layer, BBFILES and other configuration information.
Options:
--version show program's version number and exit
-h, --help show this help message and exit
-b BUILDFILE, --buildfile=BUILDFILE
Execute tasks from a specific .bb recipe directly.
WARNING: Does not handle any dependencies from other
recipes.
-k, --continue Continue as much as possible after an error. While the
target that failed and anything depending on it cannot
be built, as much as possible will be built before
stopping.
-f, --force Force the specified targets/task to run (invalidating
any existing stamp file).
-c CMD, --cmd=CMD Specify the task to execute. The exact options
available depend on the metadata. Some examples might
be 'compile' or 'populate_sysroot' or 'listtasks' may
give a list of the tasks available.
-C INVALIDATE_STAMP, --clear-stamp=INVALIDATE_STAMP
Invalidate the stamp for the specified task such as
'compile' and then run the default task for the
specified target(s).
-r PREFILE, --read=PREFILE
Read the specified file before bitbake.conf.
-R POSTFILE, --postread=POSTFILE
Read the specified file after bitbake.conf.
-v, --verbose Enable tracing of shell tasks (with 'set -x'). Also
print bb.note(...) messages to stdout (in addition to
writing them to ${T}/log.do_<task>).
-D, --debug Increase the debug level. You can specify this more
than once. -D sets the debug level to 1, where only
bb.debug(1, ...) messages are printed to stdout; -DD
&nbs
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