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| author | Rich Felker <dalias@aerifal.cx> | 2014-10-10 18:17:09 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2014-10-10 18:17:09 -0400 |
| commit | 867b1822f30a76cb9c8342da29eb28ed75908fa9 (patch) | |
| tree | 9c0f489e301ae87ce0296adab65c488d926ac4b9 /arch/x86_64 | |
| parent | 08b996d180323775d5457944eefbb8a51ea72539 (diff) | |
| download | musl-867b1822f30a76cb9c8342da29eb28ed75908fa9.tar.gz musl-867b1822f30a76cb9c8342da29eb28ed75908fa9.tar.bz2 musl-867b1822f30a76cb9c8342da29eb28ed75908fa9.tar.xz musl-867b1822f30a76cb9c8342da29eb28ed75908fa9.zip | |
add explicit barrier operation to internal atomic.h API
Diffstat (limited to 'arch/x86_64')
| -rw-r--r-- | arch/x86_64/atomic.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86_64/atomic.h b/arch/x86_64/atomic.h index ae0a576c..333098c3 100644 --- a/arch/x86_64/atomic.h +++ b/arch/x86_64/atomic.h @@ -91,6 +91,11 @@ static inline void a_spin() __asm__ __volatile__( "pause" : : : "memory" ); } +static inline void a_barrier() +{ + __asm__ __volatile__( "" : : : "memory" ); +} + static inline void a_crash() { __asm__ __volatile__( "hlt" : : : "memory" ); |