diff options
| -rw-r--r-- | byterun/signals_machdep.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/byterun/signals_machdep.h b/byterun/signals_machdep.h index 98799807c..08c5f4cb8 100644 --- a/byterun/signals_machdep.h +++ b/byterun/signals_machdep.h @@ -42,6 +42,16 @@ : "r" (&(src)), "r" (0) \ : "cr0", "memory") +#elif defined(__GNUC__) && defined(__ppc64__) + +#define Read_and_clear(dst,src) \ + asm("0: ldarx %0, 0, %1\n\t" \ + "stdcx. %2, 0, %1\n\t" \ + "bne- 0b" \ + : "=&r" (dst) \ + : "r" (&(src)), "r" (0) \ + : "cr0", "memory") + #else /* Default, non-atomic implementation */ |