diff options
Diffstat (limited to 'src/pkg/runtime/atomic_386.c')
| -rw-r--r-- | src/pkg/runtime/atomic_386.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/src/pkg/runtime/atomic_386.c b/src/pkg/runtime/atomic_386.c index 1046eb81e..d7162a1b8 100644 --- a/src/pkg/runtime/atomic_386.c +++ b/src/pkg/runtime/atomic_386.c @@ -3,43 +3,44 @@ // license that can be found in the LICENSE file. #include "runtime.h" +#include "../../cmd/ld/textflag.h" -#pragma textflag 7 +#pragma textflag NOSPLIT uint32 runtime·atomicload(uint32 volatile* addr) { return *addr; } -#pragma textflag 7 +#pragma textflag NOSPLIT void* runtime·atomicloadp(void* volatile* addr) { return *addr; } -#pragma textflag 7 +#pragma textflag NOSPLIT uint64 runtime·xadd64(uint64 volatile* addr, int64 v) { uint64 old; - old = *addr; - while(!runtime·cas64(addr, &old, old+v)) { - // nothing - } + do + old = *addr; + while(!runtime·cas64(addr, old, old+v)); + return old+v; } -#pragma textflag 7 +#pragma textflag NOSPLIT uint64 runtime·xchg64(uint64 volatile* addr, uint64 v) { uint64 old; - old = *addr; - while(!runtime·cas64(addr, &old, v)) { - // nothing - } + do + old = *addr; + while(!runtime·cas64(addr, old, v)); + return old; } |