glibc master has been C23'fying the functions which is resulting errors
Several functions assigned results of bsearch/strstr/strpbrk/memchr to
non-const pointers, triggering -Wincompatible-pointer-types-discards-qualifiers
under clang/gcc with -Werror. Cast bsearch return values where needed and
propagate const correctness for strstr/strpbrk/memchr results.
Removes build failures with strict warning flags without changing behavior.
Signed-off-by: Khem Raj <raj.khem@gmail.com>
[Eric: changed the glxglvnd.c hunk to add the missing `const` instead of casting it away]
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38594>
This allows us to override and clear the reset isolation bit.
It will be used in the following patch to override missing support
for GLX_CONTEXT_RESET_ISOLATION_BIT_ARB.
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38668>
The standard way to query options in mesa is `os_get_option()` which
abstracts platform-specific mechanisms to get config variables.
However in quite a few places `getenv()` is still used and this may
preclude controlling some options on some systems.
For instance it is not generally possible to use `MESA_DEBUG` on
Android.
So replace most `getenv()` occurrences with `os_get_option()` to
support configuration options more consistently across different
platforms.
Do the same with `secure_getenv()` replacing it with
`os_get_option_secure()`.
The bulk of the proposed changes are mechanically performed by the
following script:
-----------------------------------------------------------------------
#!/bin/sh
set -e
replace() {
# Don't replace in some files, for example where `os_get_option` is defined,
# or in external files
EXCLUDE_FILES_PATTERN='(src/util/os_misc.c|src/util/u_debug.h|src/gtest/include/gtest/internal/gtest-port.h)'
# Don't replace some "system" variables
EXCLUDE_VARS_PATTERN='("XDG|"DISPLAY|"HOME|"TMPDIR|"POSIXLY_CORRECT)'
git grep "[=!( ]$1(" -- src/ | cut -d ':' -f 1 | sort | uniq | \
grep -v -E "$EXCLUDE_FILES_PATTERN" | \
while read -r file;
do
# Don't replace usages of XDG_* variables or HOME
sed -E -e "/$EXCLUDE_VARS_PATTERN/!s/([=!\( ])$1\(/\1$2\(/g" -i "$file";
done
}
# Add const to os_get_option results, to avoid warning about discarded qualifier:
# warning: initialization discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
# but also errors in some cases:
# error: invalid conversion from ‘const char*’ to ‘char*’ [-fpermissive]
add_const_results() {
git grep -l -P '(?<!const )char.*os_get_option' | \
while read -r file;
do
sed -e '/^\s*const/! s/\(char.*os_get_option\)/const \1/g' -i "$file"
done
}
replace 'secure_getenv' 'os_get_option_secure'
replace 'getenv' 'os_get_option'
add_const_results
-----------------------------------------------------------------------
After this, the `#include "util/os_misc.h"` is also added in files where
`os_get_option()` was not used before.
And since the replacements from the script above generated some new
`-Wdiscarded-qualifiers` warnings, those have been addressed as well,
generally by declaring `os_get_option()` results as `const char *` and
adjusting some function declarations.
Finally some replacements caused new errors like:
-----------------------------------------------------------------------
../src/gallium/auxiliary/gallivm/lp_bld_misc.cpp:127:31: error: no matching function for call to 'strtok'
127 | for (n = 0, option = strtok(env_llc_options, " "); option; n++, option = strtok(NULL, " ")) {
| ^~~~~~
/android-ndk-r27c/toolchains/llvm/prebuilt/linux-x86_64/bin/../sysroot/usr/include/string.h:124:17: note: candidate function not viable: 1st argument ('const char *') would lose const qualifier
124 | char* _Nullable strtok(char* _Nullable __s, const char* _Nonnull __delimiter);
| ^ ~~~~~~~~~~~~~~~~~~~
-----------------------------------------------------------------------
Those have been addressed too, copying the const string returned by
`os_get_option()` so that it could be modified.
In particular, the error above has been fixed by copying the `const
char *env_llc_options` variable in
`src/gallium/auxiliary/gallivm/lp_bld_misc.cpp` to a `char *` which can
be tokenized using `strtok()`.
Reviewed-by: Eric Engestrom <eric@igalia.com>
Reviewed-by: Yonggang Luo <luoyonggang@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38128>
This prevents mesa from segfaulting if GLX is working on some screens, but not all screens.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: stefan11111 <stefan11111@shitposting.expert>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38201>
New Vulkan CTS 1.4.4 started requiring glx.pc pkg-config file. Provide
one if GLVND is not used in order to let VK CTS and other programs find
Mesa GLX implementation.
Cc: mesa-stable
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37834>
In the C23 standard unreachable() is now a predefined function-like
macro in <stddef.h>
See https://android.googlesource.com/platform/bionic/+/HEAD/docs/c23.md#is-now-a-predefined-function_like-macro-in
And this causes build errors when building for C23:
-----------------------------------------------------------------------
In file included from ../src/util/log.h:30,
from ../src/util/log.c:30:
../src/util/macros.h:123:9: warning: "unreachable" redefined
123 | #define unreachable(str) \
| ^~~~~~~~~~~
In file included from ../src/util/macros.h:31:
/usr/lib/gcc/x86_64-linux-gnu/14/include/stddef.h:456:9: note: this is the location of the previous definition
456 | #define unreachable() (__builtin_unreachable ())
| ^~~~~~~~~~~
-----------------------------------------------------------------------
So don't redefine it with the same name, but use the name UNREACHABLE()
to also signify it's a macro.
Using a different name also makes sense because the behavior of the
macro was extending the one of __builtin_unreachable() anyway, and it
also had a different signature, accepting one argument, compared to the
standard unreachable() with no arguments.
This change improves the chances of building mesa with the C23 standard,
which for instance is the default in recent AOSP versions.
All the instances of the macro, including the definition, were updated
with the following command line:
git grep -l '[^_]unreachable(' -- "src/**" | sort | uniq | \
while read file; \
do \
sed -e 's/\([^_]\)unreachable(/\1UNREACHABLE(/g' -i "$file"; \
done && \
sed -e 's/#undef unreachable/#undef UNREACHABLE/g' -i src/intel/isl/isl_aux_info.c
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36437>
This was originally needed to bind the context to the background thread
for DRI2 because it needs to be able to get buffers from the X server.
With DRI3 and Wayland, however, it's not needed. All the DRI3 code gets
everything it needs from the drawable and only uses the context for
flushes and blits, which always come from GLX itself, not the render
thread. Now that we've deleted all the DRI2 code, let's delete this,
too.
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36123>
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36123>
Even though Xlib 1.8 enables thread-safety by default it's still
theoretically possible that the user's system has an Xlib that has been
built with this turned off. Warn in that case. Since this requires
poking at Xlib internals, it's better to have this as a util helper.
Now that libloader_x11 contains more than just dri3 helpers, we build it
unconditionally if with_platform_x11 and just add loader_x11.c if it
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36123>
This decouples Kopper and swrast. With this change, dri/kopper.c no
longer references DRIswrastLoaderEsxtension at all.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36014>
DRI2 was hidden behind a legacy-x11 build option back in the 24.2
release. It's now been a year, so let's get on with removing it so we
can simplify our winsys interactions.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35885>
The intention here, long ago, was to ensure that any symbols the DRI
driver needed from libGL were available. We don't have this problem
anymore, libgallium does not import any symbols from the GLX frontend
(or any other one for that matter).
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30417>
GL functions were exported by luck because we incorrectly used
link_with in meson, which exports functions only if the static lib is
used. link_whole guarantees that the functions are always exported
even if the static lib is unused.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34002>
It's redundant at this point. The one exception is for GLX_PUBLIC when
building for glvnd, because then we really do want the GLX API to be
hidden.
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33623>
Not that meson lets you reach this state yet, but if you did, you'd
still build all of the indirect code but the linker would gc most of it.
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Eric Engestrom <eric@igalia.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33623>
glx/egl "multibuffers" denotes if server side support DRI3
multi plane and modifiers which is version >= 1.2. But now
it returns true just when DRI3 version >= 1.
This causes problem when xserver with amdgpu DDX which only
support DRI3 1.0, so "multibuffers" gets set unexpectedly,
and client send DRI3 >= 1.2 request to server which gets
unimplemented error.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31657>
v1. Makes special_event a member of struct dri_drawable to be re-used.
(Michel Dänzer @daenzer)
v2. Guard with VK_USE_PLATFORM_XCB_KHR and clean-up.
(Mike Blumenkrantz @zmike)
Signed-off-by: Hyunjun Ko <zzoon@igalia.com>
Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31474>
