xnu-2050.9.2.tar.gz

[apple/xnu.git] / libkern / gen / OSAtomicOperations.c

diff --git a/libkern/gen/OSAtomicOperations.c b/libkern/gen/OSAtomicOperations.c
index aeeb093645d9305840a53ab8812c9e06dd225021..cfb15c5c1b7e0b3f160166fb2c2aaf48de2ae7a6 100644 (file)
--- a/libkern/gen/OSAtomicOperations.c
+++ b/libkern/gen/OSAtomicOperations.c
@@ -54,51 +54,11 @@ enum {
  * Like standards, there are a lot of atomic ops to choose from!
  */
 
-#if !defined(__ppc__) && !defined(__i386__) && !defined(__x86_64__)
-/* Implemented in assembly for ppc and i386 and x86_64 */
-#undef OSAddAtomic
-SInt32
-OSAddAtomic(SInt32 amount, volatile SInt32 * value)
-{
-       SInt32 oldValue;
-       SInt32 newValue;
-
-       do {
-               oldValue = *value;
-               newValue = oldValue + amount;
-       } while (!OSCompareAndSwap((UInt32)oldValue,
-                               (UInt32)newValue,
-                               (volatile UInt32 *) value));
-       return oldValue;
-}
-
-long
-OSAddAtomicLong(long theAmount, volatile long *address)
-{
-#if __LP64__
-#error Unimplemented
+#if defined(__i386__) || defined(__x86_64__)
+/* Implemented in assembly for i386 and x86_64 */
 #else
-       return (long)OSAddAtomic((SInt32)theAmount, address);
+#error Unsupported arch
 #endif
-}
-
-/* Implemented as an assembly alias for i386 and linker alias for ppc */
-#undef OSCompareAndSwapPtr
-Boolean OSCompareAndSwapPtr(void *oldValue, void *newValue,
-                           void * volatile *address)
-{
-#if __LP64__
-  return OSCompareAndSwap64((UInt64)oldValue, (UInt64)newValue,
-                         (volatile UInt64 *)address);
-#else
-  return OSCompareAndSwap((UInt32)oldValue, (UInt32)newValue,
-                         (volatile UInt32 *)address);
-#endif
-}
-#endif
-
-#ifndef __ppc__
-/* Implemented as assembly for ppc */
 
 #undef OSIncrementAtomic
 SInt32 OSIncrementAtomic(volatile SInt32 * value)
@@ -111,7 +71,6 @@ SInt32       OSDecrementAtomic(volatile SInt32 * value)
 {
        return OSAddAtomic(-1, value);
 }
-#endif /* !__ppc__ */
 
 static UInt32  OSBitwiseAtomic(UInt32 and_mask, UInt32 or_mask, UInt32 xor_mask, volatile UInt32 * value)
 {