Author: rstone
Date: Fri Mar 8 21:04:16 2013
New Revision: 248072
URL: http://svnweb.freebsd.org/changeset/base/248072
Log:
MFC r226452 (by marcel@)
Define dtrace_cmpset_long in terms of atomic_cmpset_long
and not by virtue of inline assembly. Now this file
compiles on all supported architectures.
Modified:
stable/8/sys/cddl/dev/dtrace/dtrace_debug.c
Directory Properties:
stable/8/sys/ (props changed)
stable/8/sys/cddl/ (props changed)
Modified: stable/8/sys/cddl/dev/dtrace/dtrace_debug.c
==============================================================================
--- stable/8/sys/cddl/dev/dtrace/dtrace_debug.c Fri Mar 8 21:03:35 2013
(r248071)
+++ stable/8/sys/cddl/dev/dtrace/dtrace_debug.c Fri Mar 8 21:04:16 2013
(r248072)
@@ -31,49 +31,9 @@
#ifdef DEBUG
-#if defined(__amd64__)
-static __inline int
-dtrace_cmpset_long(volatile u_long *dst, u_long exp, u_long src)
-{
- u_char res;
-
- __asm __volatile(
- " lock ; "
- " cmpxchgq %2,%1 ; "
- " sete %0 ; "
- "1: "
- "# dtrace_cmpset_long"
- : "=a" (res), /* 0 */
- "=m" (*dst) /* 1 */
- : "r" (src), /* 2 */
- "a" (exp), /* 3 */
- "m" (*dst) /* 4 */
- : "memory");
-
- return (res);
-}
-#elif defined(__i386__)
-static __inline int
-dtrace_cmpset_long(volatile u_long *dst, u_long exp, u_long src)
-{
- u_char res;
-
- __asm __volatile(
- " lock ; "
- " cmpxchgl %2,%1 ; "
- " sete %0 ; "
- "1: "
- "# dtrace_cmpset_long"
- : "=a" (res), /* 0 */
- "=m" (*dst) /* 1 */
- : "r" (src), /* 2 */
- "a" (exp), /* 3 */
- "m" (*dst) /* 4 */
- : "memory");
+#include <machine/atomic.h>
- return (res);
-}
-#endif
+#define dtrace_cmpset_long atomic_cmpset_long
#define DTRACE_DEBUG_BUFR_SIZE (32 * 1024)
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