[hbelusca] 63572: [CRT/INTRIN_X86] Add InterlockedExchange8/16 for GCC. Reviewed by Timo.

Author: hbelusca
Date: Sun Jun  8 22:28:35 2014
New Revision: 63572

URL: http://svn.reactos.org/svn/reactos?rev=63572&view=rev
Log:
[CRT/INTRIN_X86]
Add InterlockedExchange8/16 for GCC. Reviewed by Timo.

Modified:
    trunk/reactos/include/crt/mingw32/intrin_x86.h

Modified: trunk/reactos/include/crt/mingw32/intrin_x86.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/crt/mingw32/intrin…
==============================================================================
--- trunk/reactos/include/crt/mingw32/intrin_x86.h	[iso-8859-1] (original)
+++ trunk/reactos/include/crt/mingw32/intrin_x86.h	[iso-8859-1] Sun Jun  8 22:28:35 2014
@@ -150,6 +150,8 @@
 __INTRIN_INLINE short _InterlockedCompareExchange16(volatile short * const Destination,
const short Exchange, const short Comperand);
 __INTRIN_INLINE long _InterlockedCompareExchange(volatile long * const Destination, const
long Exchange, const long Comperand);
 __INTRIN_INLINE void * _InterlockedCompareExchangePointer(void * volatile * const
Destination, void * const Exchange, void * const Comperand);
+__INTRIN_INLINE char _InterlockedExchange8(volatile char * const Target, const char
Value);
+__INTRIN_INLINE short _InterlockedExchange16(volatile short * const Target, const short
Value);
 __INTRIN_INLINE long _InterlockedExchange(volatile long * const Target, const long
Value);
 __INTRIN_INLINE void * _InterlockedExchangePointer(void * volatile * const Target, void *
const Value);
 __INTRIN_INLINE long _InterlockedExchangeAdd16(volatile short * const Addend, const short
Value);
@@ -199,25 +201,39 @@
 	return (void *)__sync_val_compare_and_swap(Destination, Comperand, Exchange);
 }
 
-__INTRIN_INLINE long _InterlockedExchange(volatile long * const Target, const long
Value)
+__INTRIN_INLINE char _InterlockedExchange8(volatile char * const Target, const char
Value)
 {
 	/* NOTE: __sync_lock_test_and_set would be an acquire barrier, so we force a full
barrier */
 	__sync_synchronize();
 	return __sync_lock_test_and_set(Target, Value);
 }
 
-#if defined(_M_AMD64)
-__INTRIN_INLINE long long _InterlockedExchange64(volatile long long * const Target, const
long long Value)
+__INTRIN_INLINE short _InterlockedExchange16(volatile short * const Target, const short
Value)
 {
 	/* NOTE: __sync_lock_test_and_set would be an acquire barrier, so we force a full
barrier */
 	__sync_synchronize();
 	return __sync_lock_test_and_set(Target, Value);
 }
+
+__INTRIN_INLINE long _InterlockedExchange(volatile long * const Target, const long
Value)
+{
+	/* NOTE: __sync_lock_test_and_set would be an acquire barrier, so we force a full
barrier */
+	__sync_synchronize();
+	return __sync_lock_test_and_set(Target, Value);
+}
+
+#if defined(_M_AMD64)
+__INTRIN_INLINE long long _InterlockedExchange64(volatile long long * const Target, const
long long Value)
+{
+	/* NOTE: __sync_lock_test_and_set would be an acquire barrier, so we force a full
barrier */
+	__sync_synchronize();
+	return __sync_lock_test_and_set(Target, Value);
+}
 #endif
 
 __INTRIN_INLINE void * _InterlockedExchangePointer(void * volatile * const Target, void *
const Value)
 {
-	/* NOTE: ditto */
+	/* NOTE: __sync_lock_test_and_set would be an acquire barrier, so we force a full
barrier */
 	__sync_synchronize();
 	return (void *)__sync_lock_test_and_set(Target, Value);
 }
@@ -347,6 +363,8 @@
 __INTRIN_INLINE short _InterlockedCompareExchange16(volatile short * const Destination,
const short Exchange, const short Comperand);
 __INTRIN_INLINE long _InterlockedCompareExchange(volatile long * const Destination, const
long Exchange, const long Comperand);
 __INTRIN_INLINE void * _InterlockedCompareExchangePointer(void * volatile * const
Destination, void * const Exchange, void * const Comperand);
+__INTRIN_INLINE char _InterlockedExchange8(volatile char * const Target, const char
Value);
+__INTRIN_INLINE short _InterlockedExchange16(volatile short * const Target, const short
Value);
 __INTRIN_INLINE long _InterlockedExchange(volatile long * const Target, const long
Value);
 __INTRIN_INLINE void * _InterlockedExchangePointer(void * volatile * const Target, void *
const Value);
 __INTRIN_INLINE long _InterlockedExchangeAdd16(volatile short * const Addend, const short
Value);
@@ -394,6 +412,20 @@
 {
 	void * retval = (void *)Comperand;
 	__asm__("lock; cmpxchgl %k[Exchange], %[Destination]" : [retval]
"=a" (retval) : "[retval]" (retval), [Destination] "m"
(*Destination), [Exchange] "q" (Exchange) : "memory");
+	return retval;
+}
+
+__INTRIN_INLINE char _InterlockedExchange8(volatile char * const Target, const char
Value)
+{
+	char retval = Value;
+	__asm__("xchgb %[retval], %[Target]" : [retval] "+r" (retval) :
[Target] "m" (*Target) : "memory");
+	return retval;
+}
+
+__INTRIN_INLINE short _InterlockedExchange16(volatile short * const Target, const short
Value)
+{
+	short retval = Value;
+	__asm__("xchgw %[retval], %[Target]" : [retval] "+r" (retval) :
[Target] "m" (*Target) : "memory");
 	return retval;
 }