diff options
| author | Jonathan Gray <jsg@cvs.openbsd.org> | 2017-05-28 01:33:27 +0000 |
|---|---|---|
| committer | Jonathan Gray <jsg@cvs.openbsd.org> | 2017-05-28 01:33:27 +0000 |
| commit | 1577ddb3caa0965f6d8ab842e1dfa28670386c74 (patch) | |
| tree | 0d5296c9accee55d87b0728336892b4dd6bd353a /sys/arch/i386 | |
| parent | 91317900acade1de982ef7289c4499c1b2a92a3f (diff) | |
remove bogus atomic_swap_64 code from i386
xchg can't handle 64 bit values on i386. gcc errors if the code
is called, clang errors if it is included.
ok mlarkin@ kettenis@
Diffstat (limited to 'sys/arch/i386')
| -rw-r--r-- | sys/arch/i386/include/atomic.h | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/sys/arch/i386/include/atomic.h b/sys/arch/i386/include/atomic.h index 5a3ceb95345..4e5266dc200 100644 --- a/sys/arch/i386/include/atomic.h +++ b/sys/arch/i386/include/atomic.h @@ -1,4 +1,4 @@ -/* $OpenBSD: atomic.h,v 1.17 2017/05/27 20:12:12 kettenis Exp $ */ +/* $OpenBSD: atomic.h,v 1.18 2017/05/28 01:33:26 jsg Exp $ */ /* $NetBSD: atomic.h,v 1.1.2.2 2000/02/21 18:54:07 sommerfeld Exp $ */ /*- @@ -106,17 +106,6 @@ _atomic_swap_ulong(volatile unsigned long *p, unsigned long n) } #define atomic_swap_ulong(_p, _n) _atomic_swap_ulong((_p), (_n)) -static inline uint64_t -_atomic_swap_64(volatile uint64_t *p, uint64_t n) -{ - __asm volatile("xchgl %0, %1" - : "=a" (n), "=m" (*p) - : "0" (n), "m" (*p)); - - return (n); -} -#define atomic_swap_64(_p, _n) _atomic_swap_64((_p), (_n)) - static inline void * _atomic_swap_ptr(volatile void *p, void *n) { |