X-Git-Url: http://wien.tomnetworks.com/gitweb/?p=hs-boehmgc.git;a=blobdiff_plain;f=gc-7.2%2Flibatomic_ops%2Fsrc%2Fatomic_ops%2Fsysdeps%2Fmsftc%2Fcommon32_defs.h;fp=gc-7.2%2Flibatomic_ops%2Fsrc%2Fatomic_ops%2Fsysdeps%2Fmsftc%2Fcommon32_defs.h;h=5d519f09f7dbb6b53ebb10d7af58685f303246a5;hp=0000000000000000000000000000000000000000;hb=324587ba93dc77f37406d41fd2a20d0e0d94fb1d;hpb=2a4ea609491b225a1ceb06da70396e93916f137a

diff --git a/gc-7.2/libatomic_ops/src/atomic_ops/sysdeps/msftc/common32_defs.h b/gc-7.2/libatomic_ops/src/atomic_ops/sysdeps/msftc/common32_defs.h
new file mode 100644
index 0000000..5d519f0
--- /dev/null
+++ b/gc-7.2/libatomic_ops/src/atomic_ops/sysdeps/msftc/common32_defs.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2003 Hewlett-Packard Development Company, L.P.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/* This file contains AO primitives based on VC++ built-in intrinsic    */
+/* functions commonly available across 32-bit architectures.            */
+
+/* This file should be included from arch-specific header files.        */
+/* Define AO_USE_INTERLOCKED_INTRINSICS if _Interlocked primitives      */
+/* (used below) are available as intrinsic ones for a target arch       */
+/* (otherwise "Interlocked" functions family is used instead).          */
+/* Define AO_ASSUME_WINDOWS98 if CAS is available.                      */
+
+#include <windows.h>
+        /* Seems like over-kill, but that's what MSDN recommends.       */
+        /* And apparently winbase.h is not always self-contained.       */
+
+#if _MSC_VER < 1310 || !defined(AO_USE_INTERLOCKED_INTRINSICS)
+
+# define _InterlockedIncrement       InterlockedIncrement
+# define _InterlockedDecrement       InterlockedDecrement
+# define _InterlockedExchange        InterlockedExchange
+# define _InterlockedExchangeAdd     InterlockedExchangeAdd
+# define _InterlockedCompareExchange InterlockedCompareExchange
+
+# define AO_INTERLOCKED_VOLATILE /**/
+
+#else /* elif _MSC_VER >= 1310 */
+
+# if _MSC_VER >= 1400
+#   ifndef _WIN32_WCE
+#     include <intrin.h>
+#   endif
+
+#   pragma intrinsic (_ReadWriteBarrier)
+
+# else /* elif _MSC_VER < 1400 */
+#  ifdef __cplusplus
+     extern "C" {
+#  endif
+   LONG __cdecl _InterlockedIncrement(LONG volatile *);
+   LONG __cdecl _InterlockedDecrement(LONG volatile *);
+   LONG __cdecl _InterlockedExchangeAdd(LONG volatile *, LONG);
+   LONG __cdecl _InterlockedExchange(LONG volatile *, LONG);
+   LONG __cdecl _InterlockedCompareExchange(LONG volatile *,
+                                        LONG /* Exchange */, LONG /* Comp */);
+#  ifdef __cplusplus
+     }
+#  endif
+# endif /* _MSC_VER < 1400 */
+
+# pragma intrinsic (_InterlockedIncrement)
+# pragma intrinsic (_InterlockedDecrement)
+# pragma intrinsic (_InterlockedExchange)
+# pragma intrinsic (_InterlockedExchangeAdd)
+# pragma intrinsic (_InterlockedCompareExchange)
+
+# define AO_INTERLOCKED_VOLATILE volatile
+
+#endif /* _MSC_VER >= 1310 */
+
+AO_INLINE AO_t
+AO_fetch_and_add_full(volatile AO_t *p, AO_t incr)
+{
+  return _InterlockedExchangeAdd((LONG AO_INTERLOCKED_VOLATILE *)p,
+                                 (LONG)incr);
+}
+#define AO_HAVE_fetch_and_add_full
+
+AO_INLINE AO_t
+AO_fetch_and_add1_full(volatile AO_t *p)
+{
+  return _InterlockedIncrement((LONG AO_INTERLOCKED_VOLATILE *)p) - 1;
+}
+#define AO_HAVE_fetch_and_add1_full
+
+AO_INLINE AO_t
+AO_fetch_and_sub1_full(volatile AO_t *p)
+{
+  return _InterlockedDecrement((LONG AO_INTERLOCKED_VOLATILE *)p) + 1;
+}
+#define AO_HAVE_fetch_and_sub1_full
+
+#ifdef AO_ASSUME_WINDOWS98
+/* Returns nonzero if the comparison succeeded. */
+AO_INLINE int
+AO_compare_and_swap_full(volatile AO_t *addr, AO_t old, AO_t new_val)
+{
+# ifdef AO_OLD_STYLE_INTERLOCKED_COMPARE_EXCHANGE
+    return _InterlockedCompareExchange((PVOID AO_INTERLOCKED_VOLATILE *)addr,
+                                       (PVOID)new_val, (PVOID)old)
+           == (PVOID)old;
+# else
+    return _InterlockedCompareExchange((LONG AO_INTERLOCKED_VOLATILE *)addr,
+                                       (LONG)new_val, (LONG)old)
+           == (LONG)old;
+# endif
+}
+# define AO_HAVE_compare_and_swap_full
+#endif /* AO_ASSUME_WINDOWS98 */