Quentin Schulz 6e54c8c7ff mesa: avoid host paths poisoning
At least panfrost and asahi drivers are prone to host paths poisoning
due to unpatched __FILE__ macro in assert() of libcl.

The compilation units for files including this file all are passed
specific arguments via the cl_args meson variable which currently only
contains one fmacro-prefix-map entry for relative paths. However, there
are also absolute build and source paths that seem to make it to the
generated files and libraries so this patches mesa to also strip those
paths.

Note that out of the four paths in the default DEBUG_PREFIX_MAP, only
the source and build directories make it to the fmacro-prefix-map and
they aren't mapped like they are when used with ffile-prefix-map in
DEBUG_PREFIX_MAP as I'm not sure if it is at all possible for meson to
fetch this Yocto-provided path we should be mapping to in the current
mesa code base. I guess this is good enough for now.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
(From OE-Core rev: 5948e618b7746ac333c1ec3ca99b66bd3faeb2ba)

Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2025-09-11 11:31:56 +01:00
2025-09-11 11:31:56 +01:00
2024-02-19 11:34:33 +00:00
2021-07-19 18:07:21 +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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