在 2025-10-1 20:26, Martin Storsjö 写道:
On GCC compatible compilers, use a store with release semantics; this generates more efficient code than a full InterlockedExchangePointer.This avoids hangs in some cases, on aarch64. Signed-off-by: Martin Storsjö <[email protected]> --- mingw-w64-libraries/winpthreads/src/spinlock.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/mingw-w64-libraries/winpthreads/src/spinlock.c b/mingw-w64-libraries/winpthreads/src/spinlock.c index eb21509d6..6e094d5ff 100644 --- a/mingw-w64-libraries/winpthreads/src/spinlock.c +++ b/mingw-w64-libraries/winpthreads/src/spinlock.c @@ -77,6 +77,10 @@ int pthread_spin_unlock (pthread_spinlock_t *lock) { volatile spinlock_word_t *lk = (volatile spinlock_word_t *)lock; - *lk = -1; +#ifdef __GNUC__
I think this should be `#if defined __GNUC__ || defined __clang__` because clang-cl doesn't define __GNUC__. -- Best regards, LIU Hao
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