mcst-linux-kernel/patches-2024.06.26/kamailio-5.6/0002-membar-support-additio...

23 lines
556 B
Diff

--- a/src/core/atomic/atomic_unknown.h 2023-01-03 20:02:51.000000000 +0300
+++ b/src/core/atomic/atomic_unknown.h 2023-01-12 14:02:07.851068713 +0300
@@ -65,11 +65,19 @@
* with a full memory barrier
* => to be safe we must use either unlock; lock or lock; unlock; lock; unlock
* --andrei*/
+#ifdef __e2k__
+#include <e2kbuiltin.h>
+#define membar() __builtin_ia32_pause()
+
+#warning builtin memory barrier detected
+
+#else
#define membar() \
do{\
_membar_unlock; \
_membar_lock; \
} while(0)
+#endif /* E2K */
#endif /* NOSMP */