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b8730f68d2
This patch adds the capability for tasks from different multiconfigs to depend on one another. These dependencies can be enabled using the following format: task[mcdepends] = "multiconfig:FROM-MC:TO-MC:PN:task-to-depend-on" For the sake of simplicity consider the following example: Assuming we have set up multiconfig builds, one for qemux86 and one for qemuarm, named x86 and arm respectively. Adding the following line to an image recipe (core-image-sato): do_image[mcdepends] = "multiconfig:x86:arm:core-image-minimal:do_rootfs" Would state that core-image-sato:do_image from x86 will depend on core-image-minimal:do_rootfs from arm so it can be executed. This patch makes modifications to: - cooker: To glue both multiconfigs in one place and make sure the dependencies can be provided. - taskdata: To parse and add a new kind of dependency (mcdepends) to the taskdata object. - runqueue: To differentiate tasks from different multiconfigs, add the specified dependencies to the corresponding tasks, and create a working runqueue that contains tasks from both multiconfigs. - siggen: To avoid looking for tasks from different multiconfigs on objects where they dont belong. The taskdata objects are still not aware of the concept of multiconfig, so each object doesnt know which multiconfig its building, hence why the mcdepends are added to all taskdata objects equally (we really dont expect many of these), but the actual dependencies are added only to the required tasks by the runqueue. (Bitbake rev: da8cb8633504bdc815bdcefc538340b9bce5065d) Signed-off-by: Alejandro Enedino Hernandez Samaniego <alejandr@xilinx.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Bitbake
=======
BitBake is a generic task execution engine that allows shell and Python tasks to be run
efficiently and in parallel while working within complex inter-task dependency constraints.
One of BitBake's main users, OpenEmbedded, takes this core and builds embedded Linux software
stacks using a task-oriented approach.
For information about Bitbake, see the OpenEmbedded website:
http://www.openembedded.org/
Bitbake plain documentation can be found under the doc directory or its integrated
html version at the Yocto Project website:
http://yoctoproject.org/documentation
Contributing
------------
Please refer to
http://www.openembedded.org/wiki/How_to_submit_a_patch_to_OpenEmbedded
for guidelines on how to submit patches, just note that the latter documentation is intended
for OpenEmbedded (and its core) not bitbake patches (bitbake-devel@lists.openembedded.org)
but in general main guidelines apply. Once the commit(s) have been created, the way to send
the patch is through git-send-email. For example, to send the last commit (HEAD) on current
branch, type:
git send-email -M -1 --to bitbake-devel@lists.openembedded.org
Mailing list:
http://lists.openembedded.org/mailman/listinfo/bitbake-devel
Source code:
http://git.openembedded.org/bitbake/