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The linux-yocto repository and scripts can support a mode of meta data management that merges a base meta branch to every BSP branch. In this case, the scripts don't have to restore a checkpoint for the meta data to be globally accessible. The decision to restore or not is made based on whether or not the meta branch is part of all branches or not. The linux-yocto recipes have a sanity check to determine if the requested SRCREV for meta data matches the head of the meta branch (via do_validate_branches). If the wrong commit is at the head, the meta branch is moved aside and the branch reset to the right commit. This creates two meta branches that contain the base meta data. The test for integrated meta data mistakes this for a globally merged set of meta data and doesn't restore the checkpoint, which leads to build failures. The immediate fix is to allow two branches to have the meta data. The long term fix is to make the detection only consider if the build branch contains the meta data. (From OE-Core rev: bd794b92d12ceda2728520701e980b7a3cabd23d) Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> 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/community/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 = "") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website:
http://www.openembedded.org/
Description