diff options
| author | deischen <deischen@FreeBSD.org> | 2003-09-03 17:56:26 +0000 |
|---|---|---|
| committer | deischen <deischen@FreeBSD.org> | 2003-09-03 17:56:26 +0000 |
| commit | 919bc52171f32bfe264b987934e1055b6901ac6d (patch) | |
| tree | 4224af62a2f45f6a320c58acdd7f40a2692ca686 /lib/libkse/arch/i386/include/atomic_ops.h | |
| parent | 43632098e791da21a8b261c5b05b55cba97ae911 (diff) | |
| download | FreeBSD-src-919bc52171f32bfe264b987934e1055b6901ac6d.zip FreeBSD-src-919bc52171f32bfe264b987934e1055b6901ac6d.tar.gz | |
Don't assume sizeof(long) = sizeof(int) on x86; use int
instead of long types for low-level locks.
Add prototypes for some internal libc functions that are
wrapped by the library as cancellation points.
Add memory barriers to alpha atomic swap functions (submitted
by davidxu).
Requested by: bde
Diffstat (limited to 'lib/libkse/arch/i386/include/atomic_ops.h')
| -rw-r--r-- | lib/libkse/arch/i386/include/atomic_ops.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/lib/libkse/arch/i386/include/atomic_ops.h b/lib/libkse/arch/i386/include/atomic_ops.h index 1825b8c..7bc3d1b 100644 --- a/lib/libkse/arch/i386/include/atomic_ops.h +++ b/lib/libkse/arch/i386/include/atomic_ops.h @@ -33,19 +33,19 @@ * Atomic swap: * Atomic (tmp = *dst, *dst = val), then *res = tmp * - * void atomic_swap_long(long *dst, long val, long *res); + * void atomic_swap32(intptr_t *dst, intptr_t val, intptr_t *res); */ static inline void -atomic_swap_long(long *dst, long val, long *res) +atomic_swap32(intptr_t *dst, intptr_t val, intptr_t *res) { __asm __volatile( "xchgl %2, %1; movl %2, %0" : "=m" (*res) : "m" (*dst), "r" (val) : "memory"); } -#define atomic_swap_int(d, v, r) \ - atomic_swap_long((long *)(d), (long)(v), (long *)(r)) - -#define atomic_swap_ptr atomic_swap_int +#define atomic_swap_ptr(d, v, r) \ + atomic_swap32((intptr_t *)d, (intptr_t)v, (intptr_t *)r) +#define atomic_swap_int(d, v, r) \ + atomic_swap32((intptr_t *)d, (intptr_t)v, (intptr_t *)r) #endif |
