493e0eae7f
* otherwise it ends '<unknown>' inside esdk, because of parsing order:
# $METADATA_REVISION [3 operations]
# set /OE/build/test-D/conf/local.conf:43
# "f2da54ef432eac89b0f18eaad68e602b6990b5de"
# immediate /OE/build/test-D/layers/poky/meta/classes/metadata_scm.bbclass:9
# "${@oe.buildcfg.detect_revision(d)}"
# set /OE/build/test-D/layers/poky/meta/classes/metadata_scm.bbclass:10
# [vardepvalue] "${METADATA_REVISION}"
# pre-expansion value:
# "<unknown>"
METADATA_REVISION="<unknown>"
* This causes base-files.do_install and following tasks to have different
signatures between esdk and the build directory where this esdk was created:
bitbake-diffsigs {test-D,poky/build-uninative-disabled}/tmp/stamps/qemux86_64-poky-linux/base-files/*do_install*sigdata*
NOTE: Starting bitbake server...
basehash changed from 5b6981cf58bfd57d416b0e31611b73a26baae635dd1ac31c08d46f95064c3ffc to dbdce042da4d7813d632b6d1cc87a16f728ad20e55fecbc392830e6acf72babd
Variable METADATA_REVISION value changed from '<unknown>' to 'f2da54ef432eac89b0f18eaad68e602b6990b5de'
and an warning from "python3 /OE/build/test-D/ext-sdk-prepare.py" when eSDK is being prepared for use:
WARNING: The base-files:do_install sig is computed to be 83b9c9a6ef1145baac5a1e0d08814b9156af239c58fc42df95c25a9cd8a7f201,
but the sig is locked to 3dc22233059075978e5503691e98e79e7cc60db94259dfcd886bca2291c0add7 in SIGGEN_LOCKEDSIGS_t-qemux86-64
[RP: Add commit about why we need the override for future reference]
(From OE-Core rev: 675ea7281c17f77bf5dea17cfd4d9da0928382a0)
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
Poky is an integration of various components to form a pre-packaged build system and development environment which is used as a development and validation tool by the Yocto Project. It features support for building customised embedded style device images and custom containers. There are reference demo images ranging from X11/GTK+ to Weston, commandline and more. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK suitable for 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 BSP layers which extend the systems capabilities in a modular way. Many layers are available and can be found through the layer index.
As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation, the 'meta-yocto' layer which has configuration and hardware support components. These components are all part of the Yocto Project and OpenEmbedded ecosystems.
The Yocto Project has extensive documentation about the system including a reference manual which can be found at https://docs.yoctoproject.org/
OpenEmbedded is the build architecture used by Poky and the Yocto project. For information about OpenEmbedded, see the OpenEmbedded website.
Contribution Guidelines
The project works using a mailing list patch submission process. Patches should be sent to the mailing list for the repository the components originate from (see below). Throughout the Yocto Project, the README files in the component in question should detail where to send patches, who the maintainers are and where bugs should be reported.
A guide to submitting patches to OpenEmbedded is available at:
https://www.openembedded.org/wiki/How_to_submit_a_patch_to_OpenEmbedded
There is good documentation on how to write/format patches at:
https://www.openembedded.org/wiki/Commit_Patch_Message_Guidelines
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:
OpenEmbedded-Core (files in meta/, meta-selftest/, meta-skeleton/, scripts/):
- Git repository: https://git.openembedded.org/openembedded-core/
- Mailing list: openembedded-core@lists.openembedded.org
BitBake (files in bitbake/):
- Git repository: https://git.openembedded.org/bitbake/
- Mailing list: bitbake-devel@lists.openembedded.org
Documentation (files in documentation/):
- Git repository: https://git.yoctoproject.org/cgit/cgit.cgi/yocto-docs/
- Mailing list: docs@lists.yoctoproject.org
meta-yocto (files in meta-poky/, meta-yocto-bsp/):
- Git repository: https://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto
- Mailing list: poky@lists.yoctoproject.org
If in doubt, check the openembedded-core git repository for the content you intend to modify as most files are from there unless clearly one of the above categories. Before sending, be sure the patches apply cleanly to the current git repository branch in question.