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Define dtrace_cmpset_long in terms of atomic_cmpset_long

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and not by virtue of inline assembly. Now this file
compiles on all supported architectures.
This commit is contained in:
Marcel Moolenaar 2011-10-16 22:18:08 +00:00
parent e74eb12c68
commit ad4e66a63c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=226452
1 changed files with 2 additions and 42 deletions
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44
sys/cddl/dev/dtrace/dtrace_debug.c
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@ -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;
#include <machine/atomic.h>
__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");
return (res);
}
#endif
#define dtrace_cmpset_long atomic_cmpset_long
#define DTRACE_DEBUG_BUFR_SIZE (32 * 1024)