Signed-off-by: Vineet Gupta <[email protected]>
---
libc/sysdeps/linux/arc/bits/atomic.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/libc/sysdeps/linux/arc/bits/atomic.h
b/libc/sysdeps/linux/arc/bits/atomic.h
index d4abf4eb7896..1fdc83f70f6b 100644
--- a/libc/sysdeps/linux/arc/bits/atomic.h
+++ b/libc/sysdeps/linux/arc/bits/atomic.h
@@ -24,8 +24,11 @@ typedef uintmax_t uatomic_max_t;
void __arc_link_error (void);
-#define atomic_full_barrier() \
- __asm__ __volatile__("": : :"memory")
+#ifdef __A7__
+#define atomic_full_barrier() __asm__ __volatile__("": : :"memory")
+#else
+#define atomic_full_barrier() __asm__ __volatile__("dmb 3": : :"memory")
+#endif
/* Atomic compare and exchange. */
--
1.9.1
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