Martin Jansa 3d029dff3e bitbake.conf: DEBUG_PREFIX_MAP: add -fmacro-prefix-map for STAGING_DIR_NATIVE
* the default STAGING_DIR_NATIVE starts with STAGING_DIR_HOST and the
  only difference is '-native' suffix at the end

* this can lead into replacing STAGING_DIR_NATIVE path with just "-native"
  in FILE macros

* I've noticed this by accident in python3-matplotlib where buildpaths
  QA warning was triggered only for lib32-python3-matplotlib and it was
  because pybind11 path to STAGING_DIR_NATIVE was mapped to only
  '-native/<path>' in python3-matplotlib build (which doesn't trigger
  buildpaths QA and lib32-python3-matplotlib the macro path wasn't
  replaced at all, because of 'lib32-' prefix in:
  -fdebug-prefix-map=/OE/build/oe-core/tmp-glibc/work/i586-oemllib32-linux/lib32-python3-matplotlib/3.7.2/lib32-recipe-sysroot= \
  -fmacro-prefix-map=/OE/build/oe-core/tmp-glibc/work/i586-oemllib32-linux/lib32-python3-matplotlib/3.7.2/lib32-recipe-sysroot= \
  -fdebug-prefix-map=/OE/build/oe-core/tmp-glibc/work/i586-oemllib32-linux/lib32-python3-matplotlib/3.7.2/recipe-sysroot-native= \

* more details in meta-python fix for lib32-python3-matplotlib:
  https://lists.openembedded.org/g/openembedded-devel/message/112074

* the order of *-prefix-map options still seems to be that the last
  one matching wins and this works with gcc and clang, see:
  https://reviews.llvm.org/D148975?id=516863
  https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109591

* some components might sometimes be built with -coverage and could use
  -fcoverage-prefix-map:
  https://reviews.llvm.org/D148757
  or -fprofile-prefix-map:
  https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html#index-fprofile-prefix-map
  but will leave that to recipes which actually use -coverage for now

(From OE-Core rev: 90dea34cb624af744a7d5deabdd5cbfb3c10db87)

Signed-off-by: Martin Jansa <martin.jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2024-09-05 21:48:47 +01:00
2024-09-05 21:47:22 +01:00
2024-02-19 11:34:33 +00:00
2021-07-19 18:07:21 +01:00
2023-10-19 11:31:13 +01:00

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

Please refer to our contributor guide here: https://docs.yoctoproject.org/dev/contributor-guide/ for full details on how to submit changes.

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/):

BitBake (files in bitbake/):

Documentation (files in documentation/):

meta-yocto (files in meta-poky/, meta-yocto-bsp/):

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.

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