Hello Jakub,
On 17/01/2021 17:04, Jakub Jelinek via Gcc-patches wrote:
On Sun, Jan 17, 2021 at 04:25:24PM +0100, Andreas Schwab wrote:
On Jan 17 2021, Jakub Jelinek via Gcc-patches wrote:
Kwok, I guess you can reproduce it even on Linux with --disable-linux-futex
And all targets that are not explicitly configured in
libcomp/configure.tgt, where --enable-linux-futex is a no-op.
Completely untested patch (except for the linux futex version; and RTEMS
stuff is missing; I think it doesn't have a function for it but has a
counter in the struct, so perhaps fetch it manually from there), it is
Sunday, don't want to do more tonight:
here is the RTEMS part:
diff --git a/libgomp/config/rtems/sem.h b/libgomp/config/rtems/sem.h
index 50b650ab807..0cd74153b05 100644
--- a/libgomp/config/rtems/sem.h
+++ b/libgomp/config/rtems/sem.h
@@ -47,6 +47,11 @@ static inline void gomp_sem_post (gomp_sem_t *sem)
_Semaphore_Post (sem);
}
+static inline int gomp_sem_getcount (gomp_sem_t *sem)
+{
+ return (int) __atomic_load_n (&sem->_count, MEMMODEL_RELAXED);
+}
+
static inline void gomp_sem_destroy (gomp_sem_t *sem)
{
_Semaphore_Destroy (sem);
--
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