mirror of
https://git.yoctoproject.org/poky
synced 2026-05-08 05:09:24 +00:00
Mikko Rapeli
c52fe3a77a
It is useful to know which layer provided a given recipe and its binary packages. Many projects combine a number of layers and some of them also provide same recipe names in which case bitbake can prioritize between them. buildhistory can record the decision by saving the layer from where the recipe was taken from. Also, if a project is split to sub projects which maintain recipes in different meta layers, then meta layer specific summaries of e.g. disk usage can be calculated if source recipes meta layer name is recorded for example in buildhistory. If source layer is not in build history, then layer providing the recipe can be exported from build environment using 'bitbake-layers show-recipes', but it takes a long time to execute since all recipes are parsed again and requires full source tree with correct build configuration. This patch exports the name of layer as configured in BBFILE_COLLECTIONS append of its layer.conf. 'bitbake-layers show-recipes' exports the meta layers directory path name. For several open source layers these are different, e.g. meta-openembedded/meta-perl/conf/layer.conf is perl-layer, poky/meta/conf/layer.conf is core, poky/meta-skeleton/conf/layer.conf is skeleton etc. (From OE-Core rev: d8e59d1f840e4282859ad14397d1c06516b8eb11) Signed-off-by: Mikko Rapeli <mikko.rapeli@bmw.de> Signed-off-by: Ross Burton <ross.burton@intel.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/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.