cd8541bbfc
The first part of the sstate code checks en-mass whether given checksums are available. The next part of the code then either triggers those setscene tasks either running them or skipping them if they've been covered by others. The problems was that this second part would always skip a task if it was unavailable in the first part, even if it would have otherwise been covered by other tasks. This mean the mere presence of an artefact (or lack of presence) could cause a different build failure. The issue reproduces if you run a build and populate an sstate feed, then run a second build off that feed, then run a third build off the sstate feed of the second build (which is reduced in size). The fix is rather than immediately skipping tasks if the checksum is unavailable, create a list of missing tasks, then, if that task cannot be covered by others we can skip it later. The deferral makes the behaviour the same even when the cache is "incomplete". [YOCTO #6081] (Bitbake rev: 5edb1a3e3f454ba6e65551174d86229db2f99636) 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, patches against the various components should be sent to their respective upstreams.
bitbake: bitbake-devel@lists.openembedded.org
meta-yocto: poky@yoctoproject.org
Most 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. 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.