diff options
Diffstat (limited to 'linuxthreads/sysdeps/powerpc')
| -rw-r--r-- | linuxthreads/sysdeps/powerpc/pt-machine.h | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/linuxthreads/sysdeps/powerpc/pt-machine.h b/linuxthreads/sysdeps/powerpc/pt-machine.h index 578369a7fe..c7d0670d82 100644 --- a/linuxthreads/sysdeps/powerpc/pt-machine.h +++ b/linuxthreads/sysdeps/powerpc/pt-machine.h @@ -27,12 +27,7 @@ /* For multiprocessor systems, we want to ensure all memory accesses are completed before we reset a lock. */ -#if 0 -/* on non multiprocessor systems, you can just: */ -#define sync() /* nothing */ -#else -#define sync() __asm__ __volatile__ ("sync") -#endif +#define MEMORY_BARRIER() __asm__ __volatile__ ("sync" : : : "memory") /* Get some notion of the current stack. Need not be exactly the top of the stack, just something somewhere in the current frame. */ @@ -64,6 +59,6 @@ __compare_and_swap (long int *p, long int oldval, long int newval) : "=&r"(ret) : "r"(p), "r"(newval), "r"(oldval) : "cr0", "memory"); - sync(); + MEMORY_BARRIER(); return ret == 0; } |