update x86_64 cmpxchg

[urcu.git] / arch_atomic_ppc.h

diff --git a/arch_atomic_ppc.h b/arch_atomic_ppc.h
index 587fb8bbcc112dd8a97ed13b278d95c3bd4df7eb..d666230fea7a80b0ee495990ce2e661750ebd406 100644 (file)
--- a/arch_atomic_ppc.h
+++ b/arch_atomic_ppc.h
@@ -20,6 +20,14 @@
  * Boehm-Demers-Weiser conservative garbage collector.
  */
 
+#ifndef __SIZEOF_LONG__
+#ifdef __powerpc64__
+#define __SIZEOF_LONG__ 8
+#else
+#define __SIZEOF_LONG__ 4
+#endif
+#endif
+
 #ifndef BITS_PER_LONG
 #define BITS_PER_LONG  (__SIZEOF_LONG__ * 8)
 #endif
@@ -67,7 +75,7 @@ unsigned long atomic_exchange_64(volatile unsigned long *addr,
                "stdcx. %2,0,%1\n"      /* else store conditional */
                "bne- 1b\n"             /* retry if lost reservation */
                "isync\n"
-                       : "=&r"(result),
+                       : "=&r"(result)
                        : "r"(addr), "r"(val)
                        : "memory", "cc");