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| author | Pierrick Bouvier <pierrick.bouvier@linaro.org> | 2024-10-23 12:33:52 +0100 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2024-10-24 09:56:09 +0100 |
| commit | cf6fbba724f19355d31b7d8dd1a711538dd91645 (patch) | |
| tree | 31d07a8fb6d84757acd9fd9320880f6d53f755a9 | |
| parent | e4239ee92fe07bffe74759832499cf732923c76a (diff) | |
| download | qemu-cf6fbba724f19355d31b7d8dd1a711538dd91645.zip qemu-cf6fbba724f19355d31b7d8dd1a711538dd91645.tar.gz qemu-cf6fbba724f19355d31b7d8dd1a711538dd91645.tar.bz2 | |
meson: hide tsan related warnings
When building with gcc-12 -fsanitize=thread, gcc reports some
constructions not supported with tsan.
Found on debian stable.
qemu/include/qemu/atomic.h:36:52: error: ‘atomic_thread_fence’ is not supported with ‘-fsanitize=thread’ [-Werror=tsan]
36 | #define smp_mb() ({ barrier(); __atomic_thread_fence(__ATOMIC_SEQ_CST); })
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240910174013.1433331-2-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241023113406.1284676-5-alex.bennee@linaro.org>
| -rw-r--r-- | meson.build | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/meson.build b/meson.build index d26690c..bdd67a2 100644 --- a/meson.build +++ b/meson.build @@ -538,7 +538,15 @@ if get_option('tsan') prefix: '#include <sanitizer/tsan_interface.h>') error('Cannot enable TSAN due to missing fiber annotation interface') endif - qemu_cflags = ['-fsanitize=thread'] + qemu_cflags + tsan_warn_suppress = [] + # gcc (>=11) will report constructions not supported by tsan: + # "error: ‘atomic_thread_fence’ is not supported with ‘-fsanitize=thread’" + # https://gcc.gnu.org/gcc-11/changes.html + # However, clang does not support this warning and this triggers an error. + if cc.has_argument('-Wno-tsan') + tsan_warn_suppress = ['-Wno-tsan'] + endif + qemu_cflags = ['-fsanitize=thread'] + tsan_warn_suppress + qemu_cflags qemu_ldflags = ['-fsanitize=thread'] + qemu_ldflags endif |