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In SDK 25 (Android 7, 2016), the kernel only went up to around 4.4, so the upstreamed sync API didn't exist, and libsync didn't expose sync_merge(). In SDK 26 (Android 8, 2017), the kernel is sometimes bumped to 4.9 or 4.14, but libsync has a sync_merge() that operates on either the downstream or the upstream API. Since our android-targeting drivers in general use sync objects (requiring a kernel newer than 7 got) and sync_merge() (suggesting interaction with external fencing that started in Android 8), make CI build against an SDK version with the sync API. I think really doing SDK 25 right at this point would involve backporting mesa with some #ifdefs to not expose sync APIs that wouldn't work. Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com> Acked-by: Tapani Pälli <tapani.palli@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6821>
`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library ====================================================== Source ------ This repository lives at https://gitlab.freedesktop.org/mesa/mesa. Other repositories are likely forks, and code found there is not supported. Build & install --------------- You can find more information in our documentation (`docs/install.rst <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://mesa3d.org/meson.html>`_): .. code-block:: sh $ mkdir build $ cd build $ meson .. $ sudo ninja install Support ------- Many Mesa devs hang on IRC; if you're not sure which channel is appropriate, you should ask your question on `Freenode's #dri-devel <irc://chat.freenode.net#dri-devel>`_, someone will redirect you if necessary. Remember that not everyone is in the same timezone as you, so it might take a while before someone qualified sees your question. To figure out who you're talking to, or which nick to ping for your question, check out `Who's Who on IRC <https://dri.freedesktop.org/wiki/WhosWho/>`_. The next best option is to ask your question in an email to the mailing lists: `mesa-dev\@lists.freedesktop.org <https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_ Bug reports ----------- If you think something isn't working properly, please file a bug report (`docs/bugs.rst <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.