ff734f0560
When we removed the postinst sstate dependency handling code from setscene_depvalid, we noticed things being installed into the old style sysroot for rootfs tasks which should not have been there, causing a performance regression. Analysis revealed that setscene dependencies were "bubbling" over sstate tasks when they should have been stopping there. The 'continue' added by this patch avoids this issue and eusures sstate tasks remain contained to their specific chains. There was another bug in the code this exposed where the acconting for tasks as they were removed from sq_revdeps was not correct. In fixing this, what looks like a workaround in another test can then be simplified. After this change, populate_sysroot tasks are no longer depending on package_write_rpm tasks for example, which would make no sense. A before/after analysis of image dependencies only revealed improved dependencies after this change. Recipe specific sysroots did highlight the issue here since the behaviour of the sysroot dependencies (and processing with depvalid) was not matching what bitbake itself was doing, with bitbake being incorrect. Failures were 'safe' in that too many dependencies would get installed. (Bitbake rev: 5ef2cb50041fa7106c8de170af73d2a54cb0b1f0) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
Poky is an integration of various components to form a complete prepackaged build system and development environment. It features support for building customised embedded device style images. There are reference demo images featuring a X11/Matchbox/GTK themed UI called Sato. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK with IDE integration.
Additional information on the specifics of hardware that Poky supports is available in README.hardware. Further hardware support can easily be added in the form of layers which extend the systems capabilities in a modular way.
As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information e.g. for the hardware support. Poky is in turn a component of the Yocto Project.
The Yocto Project has extensive documentation about the system including a reference manual which can be found at: http://yoctoproject.org/documentation
OpenEmbedded-Core is a layer containing the core metadata for current versions of OpenEmbedded. It is distro-less (can build a functional image with DISTRO = "nodistro") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website: http://www.openembedded.org/
Where to Send Patches
As Poky is an integration repository (built using a tool called combo-layer), patches against the various components should be sent to their respective upstreams:
bitbake: Git repository: http://git.openembedded.org/bitbake/ Mailing list: bitbake-devel@lists.openembedded.org
documentation: Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/yocto-docs/ Mailing list: yocto@yoctoproject.org
meta-poky, meta-yocto-bsp: Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto(-bsp) Mailing list: poky@yoctoproject.org
Everything else should be sent to the OpenEmbedded Core mailing list. If in doubt, check the oe-core git repository for the content you intend to modify. Before sending, be sure the patches apply cleanly to the current oe-core git repository.
Git repository: http://git.openembedded.org/openembedded-core/
Mailing list: openembedded-core@lists.openembedded.org
Note: The scripts directory should be treated with extra care as it is a mix of oe-core and poky-specific files.