Rhys Perry 5629332dcf util: silence -Wstringop-overread in SHA1
In function ‘SHA1Update’,
    inlined from ‘SHA1Pad’ at ../../../../../../../mesa/src/util/sha1/sha1.c:157:2,
    inlined from ‘SHA1Final’ at ../../../../../../../mesa/src/util/sha1/sha1.c:168:2:
../../../../../../../mesa/src/util/sha1/sha1.c:135:25: warning: ‘SHA1Transform’ reading 64 bytes from a region of size 1 [-Wstringop-overread]
  135 |                         SHA1Transform(context->state, (uint8_t *)&data[i]);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../../../../../../mesa/src/util/sha1/sha1.c:135:25: note: referencing argument 2 of type ‘const uint8_t[64]’ {aka ‘const unsigned char[64]’}
../../../../../../../mesa/src/util/sha1/sha1.c: In function ‘SHA1Final’:
../../../../../../../mesa/src/util/sha1/sha1.c:55:1: note: in a call to function ‘SHA1Transform’
   55 | SHA1Transform(uint32_t state[5], const uint8_t buffer[SHA1_BLOCK_LENGTH])
      | ^~~~~~~~~~~~~
In function ‘SHA1Update’,
    inlined from ‘SHA1Pad’ at ../../../../../../../mesa/src/util/sha1/sha1.c:159:3,
    inlined from ‘SHA1Final’ at ../../../../../../../mesa/src/util/sha1/sha1.c:168:2:
../../../../../../../mesa/src/util/sha1/sha1.c:135:25: warning: ‘SHA1Transform’ reading 64 bytes from a region of size 1 [-Wstringop-overread]
  135 |                         SHA1Transform(context->state, (uint8_t *)&data[i]);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../../../../../../mesa/src/util/sha1/sha1.c:135:25: note: referencing argument 2 of type ‘const uint8_t[64]’ {aka ‘const unsigned char[64]’}
../../../../../../../mesa/src/util/sha1/sha1.c: In function ‘SHA1Final’:
../../../../../../../mesa/src/util/sha1/sha1.c:55:1: note: in a call to function ‘SHA1Transform’
   55 | SHA1Transform(uint32_t state[5], const uint8_t buffer[SHA1_BLOCK_LENGTH])
      | ^~~~~~~~~~~~~
In function ‘SHA1Update’,
    inlined from ‘SHA1Pad’ at ../../../../../../../mesa/src/util/sha1/sha1.c:160:2,
    inlined from ‘SHA1Final’ at ../../../../../../../mesa/src/util/sha1/sha1.c:168:2:
../../../../../../../mesa/src/util/sha1/sha1.c:135:25: warning: ‘SHA1Transform’ reading 64 bytes from a region of size 8 [-Wstringop-overread]
  135 |                         SHA1Transform(context->state, (uint8_t *)&data[i]);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../../../../../../mesa/src/util/sha1/sha1.c:135:25: note: referencing argument 2 of type ‘const uint8_t[64]’ {aka ‘const unsigned char[64]’}
../../../../../../../mesa/src/util/sha1/sha1.c: In function ‘SHA1Final’:
../../../../../../../mesa/src/util/sha1/sha1.c:55:1: note: in a call to function ‘SHA1Transform’
   55 | SHA1Transform(uint32_t state[5], const uint8_t buffer[SHA1_BLOCK_LENGTH])
      | ^~~~~~~~~~~~~

Reaching this code is impossible for the SHA1Update() calls in SHA1Pad().
Use assume() to inform the compiler of this.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34785>
2025-05-05 11:45:41 +00:00
2022-11-22 19:04:13 +00:00
2025-02-23 00:31:59 +01:00
2025-04-22 11:08:10 +00:00
2025-01-08 20:37:51 +00:00
2025-02-09 08:13:27 +00:00
2023-11-02 11:37:46 +00:00
2024-05-13 14:32:12 +00:00
2025-02-19 21:57:26 +00:00
2025-02-23 00:31:59 +01:00
2025-04-16 10:01:44 -04:00
2024-11-18 22:29:14 +00:00
2025-04-16 14:30:14 +02:00

`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://docs.mesa3d.org/install.html>`_), but the recommended way is to use
Meson (`docs/meson.rst <https://docs.mesa3d.org/meson.html>`_):

.. code-block:: sh

  $ meson setup build
  $ ninja -C build/
  $ sudo ninja -C build/ install

Support
-------

Many Mesa devs hang on IRC; if you're not sure which channel is
appropriate, you should ask your question on `OFTC's #dri-devel
<irc://irc.oftc.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://docs.mesa3d.org/bugs.html>`_).


Contributing
------------

Contributions are welcome, and step-by-step instructions can be found in our
documentation (`docs/submittingpatches.rst
<https://docs.mesa3d.org/submittingpatches.html>`_).

Note that Mesa uses gitlab for patches submission, review and discussions.
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