xnu-2782.20.48.tar.gz

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

diff --git a/libkern/gen/OSAtomicOperations.c b/libkern/gen/OSAtomicOperations.c
index cfb15c5c1b7e0b3f160166fb2c2aaf48de2ae7a6..25ff477ff7424472c86c105d81ffac637070fbaa 100644 (file)
--- a/libkern/gen/OSAtomicOperations.c
+++ b/libkern/gen/OSAtomicOperations.c
@@ -103,6 +103,7 @@ UInt32      OSBitXorAtomic(UInt32 mask, volatile UInt32 * value)
        return OSBitwiseAtomic((UInt32) -1, 0, mask, value);
 }
 
        return OSBitwiseAtomic((UInt32) -1, 0, mask, value);
 }
 

+#if defined(__i386__) || defined(__x86_64__)

 static Boolean OSCompareAndSwap8(UInt8 oldValue8, UInt8 newValue8, volatile UInt8 * value8)
 {
        UInt32                          mask            = 0x000000ff;
 static Boolean OSCompareAndSwap8(UInt8 oldValue8, UInt8 newValue8, volatile UInt8 * value8)
 {
        UInt32                          mask            = 0x000000ff;


@@ -121,6 +122,7 @@ static Boolean OSCompareAndSwap8(UInt8 oldValue8, UInt8 newValue8, volatile UInt
 
        return OSCompareAndSwap(oldValue, newValue, value32);
 }
 
        return OSCompareAndSwap(oldValue, newValue, value32);
 }

+#endif

 
 static Boolean OSTestAndSetClear(UInt32 bit, Boolean wantSet, volatile UInt8 * startAddress)
 {
 
 static Boolean OSTestAndSetClear(UInt32 bit, Boolean wantSet, volatile UInt8 * startAddress)
 {


@@ -166,6 +168,7 @@ SInt8       OSDecrementAtomic8(volatile SInt8 * value)
        return OSAddAtomic8(-1, value);
 }
 
        return OSAddAtomic8(-1, value);
 }
 

+#if defined(__i386__) || defined(__x86_64__)

 SInt8  OSAddAtomic8(SInt32 amount, volatile SInt8 * value)
 {
        SInt8   oldValue;
 SInt8  OSAddAtomic8(SInt32 amount, volatile SInt8 * value)
 {
        SInt8   oldValue;


@@ -178,6 +181,7 @@ SInt8       OSAddAtomic8(SInt32 amount, volatile SInt8 * value)
        
        return oldValue;
 }
        
        return oldValue;
 }

+#endif

 
 static UInt8   OSBitwiseAtomic8(UInt32 and_mask, UInt32 or_mask, UInt32 xor_mask, volatile UInt8 * value)
 {
 
 static UInt8   OSBitwiseAtomic8(UInt32 and_mask, UInt32 or_mask, UInt32 xor_mask, volatile UInt8 * value)
 {


@@ -207,6 +211,7 @@ UInt8       OSBitXorAtomic8(UInt32 mask, volatile UInt8 * value)
        return OSBitwiseAtomic8((UInt32) -1, 0, mask, value);
 }
 
        return OSBitwiseAtomic8((UInt32) -1, 0, mask, value);
 }
 

+#if defined(__i386__) || defined(__x86_64__)

 static Boolean OSCompareAndSwap16(UInt16 oldValue16, UInt16 newValue16, volatile UInt16 * value16)
 {
        UInt32                          mask            = 0x0000ffff;
 static Boolean OSCompareAndSwap16(UInt16 oldValue16, UInt16 newValue16, volatile UInt16 * value16)
 {
        UInt32                          mask            = 0x0000ffff;


@@ -225,6 +230,7 @@ static Boolean OSCompareAndSwap16(UInt16 oldValue16, UInt16 newValue16, volatile
 
        return OSCompareAndSwap(oldValue, newValue, value32);
 }
 
        return OSCompareAndSwap(oldValue, newValue, value32);
 }

+#endif

 
 SInt16 OSIncrementAtomic16(volatile SInt16 * value)
 {
 
 SInt16 OSIncrementAtomic16(volatile SInt16 * value)
 {


@@ -236,6 +242,7 @@ SInt16      OSDecrementAtomic16(volatile SInt16 * value)
        return OSAddAtomic16(-1, value);
 }
 
        return OSAddAtomic16(-1, value);
 }
 

+#if defined(__i386__) || defined(__x86_64__)

 SInt16 OSAddAtomic16(SInt32 amount, volatile SInt16 * value)
 {
        SInt16  oldValue;
 SInt16 OSAddAtomic16(SInt32 amount, volatile SInt16 * value)
 {
        SInt16  oldValue;


@@ -248,6 +255,7 @@ SInt16      OSAddAtomic16(SInt32 amount, volatile SInt16 * value)
        
        return oldValue;
 }
        
        return oldValue;
 }

+#endif

 
 static UInt16  OSBitwiseAtomic16(UInt32 and_mask, UInt32 or_mask, UInt32 xor_mask, volatile UInt16 * value)
 {
 
 static UInt16  OSBitwiseAtomic16(UInt32 and_mask, UInt32 or_mask, UInt32 xor_mask, volatile UInt16 * value)
 {