PowerPC inline versions of the interlocked functions.

include/winbase.h

@@ -1935,6 +1935,76 @@ extern inline HANDLE WINAPI GetProcessHeap(void)
     return pdb[0x18 / sizeof(HANDLE)];  /* get dword at offset 0x18 in pdb */
 }
 
+#elif defined(__GNUC__) && defined(__powerpc__)
+extern inline LONG WINAPI InterlockedCompareExchange( PLONG dest, LONG xchg, LONG compare );
+extern inline LONG WINAPI InterlockedCompareExchange( PLONG dest, LONG xchg, LONG compare )
+{
+    LONG ret = 0;
+    LONG scratch;
+    __asm__ (
+        "0:    lwarx %0,0,%2\n"
+        "      xor. %1,%4,%0\n"
+        "      bne 1f\n"
+        "      stwcx. %3,0,%2\n"
+        "      bne- 0b\n"
+        "      isync\n"
+        "1:    "
+        : "=&r"(ret), "=&r"(scratch)
+        : "r"(dest), "r"(xchg), "r"(compare)
+        : "cr0","memory","r0");
+    return ret;
+}
+
+extern inline LONG WINAPI InterlockedExchange( PLONG dest, LONG val );
+extern inline LONG WINAPI InterlockedExchange( PLONG dest, LONG val )
+{
+    LONG ret = 0;
+    __asm__(
+        "0:    lwarx %0,0,%1\n"
+        "      stwcx. %2,0,%1\n"
+        "      bne- 0b\n"
+        "      isync\n"
+        : "=&r"(ret)
+        : "r"(dest), "r"(val)
+        : "cr0","memory","r0");
+    return ret;
+}
+
+extern inline LONG WINAPI InterlockedExchangeAdd( PLONG dest, LONG incr );
+extern inline LONG WINAPI InterlockedExchangeAdd( PLONG dest, LONG incr )
+{
+    LONG ret = 0;
+    LONG zero = 0;
+    __asm__(
+        "0:    lwarx %0, %3, %1\n"
+        "      add %0, %2, %0\n"
+        "      stwcx. %0, %3, %1\n"
+        "      bne- 0b\n"
+        "      isync\n"
+        : "=&r" (ret)
+        : "r"(dest), "r"(incr), "r"(zero)
+        : "cr0", "memory", "r0"
+    );
+    return ret-incr;
+}
+
+extern inline LONG WINAPI InterlockedIncrement( PLONG dest );
+extern inline LONG WINAPI InterlockedIncrement( PLONG dest )
+{
+    return InterlockedExchangeAdd( dest, 1 ) + 1;
+}
+
+extern inline LONG WINAPI InterlockedDecrement( PLONG dest );
+extern inline LONG WINAPI InterlockedDecrement( PLONG dest )
+{
+    return InterlockedExchangeAdd( dest, -1 ) - 1;
+}
+
+DWORD       WINAPI GetLastError(void);
+DWORD       WINAPI GetCurrentProcessId(void);
+DWORD       WINAPI GetCurrentThreadId(void);
+void        WINAPI SetLastError( DWORD err );
+HANDLE	    WINAPI GetProcessHeap(void);
 #else  /* __i386__ && __GNUC__ */
 DWORD       WINAPI GetCurrentProcessId(void);
 DWORD       WINAPI GetCurrentThreadId(void);