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| author | Michael Stapelberg <michael@stapelberg.de> | 2013-03-23 11:29:06 +0100 |
|---|---|---|
| committer | Michael Stapelberg <michael@stapelberg.de> | 2013-03-23 11:29:06 +0100 |
| commit | cc71238f4c5d23ee2ebffd0d6c307e308ea163c1 (patch) | |
| tree | dd0b57254871fac715258385f5485ba136d6b62a /src/pkg/runtime/atomic_arm.c | |
| parent | b32e37d71adab0e2a2b7c4433e7bad169a9a4f98 (diff) | |
| parent | b39e15dde5ec7b96c15da9faf4ab5892501c1aae (diff) | |
| download | golang-cc71238f4c5d23ee2ebffd0d6c307e308ea163c1.tar.gz | |
Merge tag 'upstream/1.1_hg20130323' into debian-sid
Upstream version 1.1~hg20130323
Diffstat (limited to 'src/pkg/runtime/atomic_arm.c')
| -rw-r--r-- | src/pkg/runtime/atomic_arm.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/pkg/runtime/atomic_arm.c b/src/pkg/runtime/atomic_arm.c index 0b54840cc..9193d599d 100644 --- a/src/pkg/runtime/atomic_arm.c +++ b/src/pkg/runtime/atomic_arm.c @@ -123,6 +123,19 @@ runtime·xadd64(uint64 volatile *addr, int64 delta) #pragma textflag 7 uint64 +runtime·xchg64(uint64 volatile *addr, uint64 v) +{ + uint64 res; + + runtime·lock(LOCK(addr)); + res = *addr; + *addr = v; + runtime·unlock(LOCK(addr)); + return res; +} + +#pragma textflag 7 +uint64 runtime·atomicload64(uint64 volatile *addr) { uint64 res; |