3217d20246
Newer versions of binutils (2.38+) have changed how the "--only-keep-debug" of objcopy behaves when stripping non-debug sections from an ELF. https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=68f543154e92ab0f5d6c569e0fa143f5e8bd2d80 This change causes associated sections to be correctly marked as NOBITS with the section contents removed from the output. The side effect is that this causes issues with objcopy's ability to perform symbol and relocation stripping (-S/--strip-all) on the debug split ELF, such that with some object files (e.g. kernel modules) objcopy fails to strip symbols/relocations with an error like the following: .../.debug/nls_cp950.ko[.rodata]: file truncated Because of this it is now problematic to generate minidebuginfo for these types of ELF objects. However it is not typically useful to inject minidebuginfo into these types of ELFs, and other distributions (e.g. Fedora, referring to find-debuginfo.sh of debugedit) only insert minidebuginfo into executables and shared libraries. This change causes the minidebuginfo injection to only apply to EXEC/DYN type ELFs, which limits the injection to executables and shared libraires. Additionally this change fixes the parsing of the sections from the "readelf -W -S" output which was not accounting for the section index column having leading spaces for single digit index values e.g. "[ 1]". (From OE-Core rev: f3aaad246fec3defda54328555f3b0765bb43b9e) Signed-off-by: Nathan Rossi <nathan.rossi@digi.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> (cherry picked from commit 2084cfcb3d15db3e02637f1cd63ab9c997f38a65) Signed-off-by: Steve Sakoman <steve@sakoman.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.