diff options
| author | Vineet Gupta <Vineet.Gupta1@synopsys.com> | 2015-10-21 12:42:23 +0530 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2015-10-22 04:02:03 +0200 |
| commit | fef346b2666ed2e7331fe4ca74a7dbaedc380b20 (patch) | |
| tree | 2309ef1f34a0fddc9c327cf8c90e5660bc194710 /libc/sysdeps/linux | |
| parent | 1303e7eb2b65f5275a57b66a7bebc8bfe1b32d4f (diff) | |
NPTL/ARCv2: Implement full memory barrier for NPTL
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'libc/sysdeps/linux')
| -rw-r--r-- | libc/sysdeps/linux/arc/bits/atomic.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/arc/bits/atomic.h b/libc/sysdeps/linux/arc/bits/atomic.h index d4abf4eb7..1fdc83f70 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. */ |