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%2Fordered_except_wr.h;fp=gc-7.2%2Flibatomic_ops%2Fsrc%2Fatomic_ops%2Fsysdeps%2Fordered_except_wr.h;h=da8b13ae0426c6e7aa13afb94578702b699ca2f8;hp=0000000000000000000000000000000000000000;hb=324587ba93dc77f37406d41fd2a20d0e0d94fb1d;hpb=2a4ea609491b225a1ceb06da70396e93916f137a

diff --git a/gc-7.2/libatomic_ops/src/atomic_ops/sysdeps/ordered_except_wr.h b/gc-7.2/libatomic_ops/src/atomic_ops/sysdeps/ordered_except_wr.h
new file mode 100644
index 0000000..da8b13a
--- /dev/null
+++ b/gc-7.2/libatomic_ops/src/atomic_ops/sysdeps/ordered_except_wr.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2003 by Hewlett-Packard Company.  All rights reserved.
+ *
+ * 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.
+ */
+
+/*
+ * These are common definitions for architectures that provide processor
+ * ordered memory operations except that a later read may pass an
+ * earlier write.  Real x86 implementations seem to be in this category,
+ * except apparently for some IDT WinChips, which we ignore.
+ */
+
+#include "read_ordered.h"
+
+AO_INLINE void
+AO_nop_write(void)
+{
+  AO_compiler_barrier();
+  /* sfence according to Intel docs.  Pentium 3 and up. */
+  /* Unnecessary for cached accesses?                   */
+}
+#define AO_HAVE_nop_write
+
+#if defined(AO_HAVE_store)
+  AO_INLINE void
+  AO_store_write(volatile AO_t *addr, AO_t val)
+  {
+    AO_compiler_barrier();
+    AO_store(addr, val);
+  }
+# define AO_HAVE_store_write
+
+# define AO_store_release(addr, val) AO_store_write(addr, val)
+# define AO_HAVE_store_release
+#endif /* AO_HAVE_store */
+
+#if defined(AO_HAVE_char_store)
+  AO_INLINE void
+  AO_char_store_write(volatile unsigned char *addr, unsigned char val)
+  {
+    AO_compiler_barrier();
+    AO_char_store(addr, val);
+  }
+# define AO_HAVE_char_store_write
+
+# define AO_char_store_release(addr, val) AO_char_store_write(addr, val)
+# define AO_HAVE_char_store_release
+#endif /* AO_HAVE_char_store */
+
+#if defined(AO_HAVE_short_store)
+  AO_INLINE void
+  AO_short_store_write(volatile unsigned short *addr, unsigned short val)
+  {
+    AO_compiler_barrier();
+    AO_short_store(addr, val);
+  }
+# define AO_HAVE_short_store_write
+
+# define AO_short_store_release(addr, val) AO_short_store_write(addr, val)
+# define AO_HAVE_short_store_release
+#endif /* AO_HAVE_short_store */
+
+#if defined(AO_HAVE_int_store)
+  AO_INLINE void
+  AO_int_store_write(volatile unsigned int *addr, unsigned int val)
+  {
+    AO_compiler_barrier();
+    AO_int_store(addr, val);
+  }
+# define AO_HAVE_int_store_write
+
+# define AO_int_store_release(addr, val) AO_int_store_write(addr, val)
+# define AO_HAVE_int_store_release
+#endif /* AO_HAVE_int_store */