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selftests: harness: Remove dependency on libatomic

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__sync_bool_compare_and_swap() is deprecated and requires libatomic on
GCC. Compiler toolchains don't necessarily have libatomic available, so
avoid this requirement by using atomics that don't need libatomic.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250505-nolibc-kselftest-harness-v4-6-ee4dd5257135@linutronix.de
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
This commit is contained in:
Thomas Weißschuh 2025-05-05 17:15:24 +02:00 committed by Thomas Weißschuh
parent 5cccec7239
commit 67ee52611b
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/kselftest_harness.h
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@ -439,12 +439,12 @@
} \
if (child == 0) { \
if (_metadata->setup_completed && !fixture_name##_teardown_parent && \
__sync_bool_compare_and_swap(teardown, false, true)) \
!__atomic_test_and_set(teardown, __ATOMIC_RELAXED)) \
fixture_name##_teardown(_metadata, self, variant->data); \
_exit(0); \
} \
if (_metadata->setup_completed && fixture_name##_teardown_parent && \
__sync_bool_compare_and_swap(teardown, false, true)) \
!__atomic_test_and_set(teardown, __ATOMIC_RELAXED)) \
fixture_name##_teardown(_metadata, self, variant->data); \
munmap(teardown, sizeof(*teardown)); \
if (self && fixture_name##_teardown_parent) \