diff options
| author | Philip Guenthe <guenther@cvs.openbsd.org> | 2011-10-13 05:41:07 +0000 |
|---|---|---|
| committer | Philip Guenthe <guenther@cvs.openbsd.org> | 2011-10-13 05:41:07 +0000 |
| commit | 06be69949fdaac5748c26bac9c34d64e4dd539a6 (patch) | |
| tree | 3a77dd655c6ce0a7c94608c83d1098c74c0974f6 /lib/librthread/arch/sparc64 | |
| parent | ba0ca07557c34cd6389858f21be40f0aeaabd733 (diff) | |
Deal with the horror that is gcc asm constraints by copying the
known good version of ldstub in the kernel. (It's finally in, aja!)
ok kettenis@
Diffstat (limited to 'lib/librthread/arch/sparc64')
| -rw-r--r-- | lib/librthread/arch/sparc64/_atomic_lock.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/lib/librthread/arch/sparc64/_atomic_lock.c b/lib/librthread/arch/sparc64/_atomic_lock.c index 3ccb2d34fd4..750d9e5aa14 100644 --- a/lib/librthread/arch/sparc64/_atomic_lock.c +++ b/lib/librthread/arch/sparc64/_atomic_lock.c @@ -1,4 +1,4 @@ -/* $OpenBSD: _atomic_lock.c,v 1.3 2008/10/02 23:29:26 deraadt Exp $ */ +/* $OpenBSD: _atomic_lock.c,v 1.4 2011/10/13 05:41:06 guenther Exp $ */ /* David Leonard, <d@csee.uq.edu.au>. Public domain. */ /* @@ -35,9 +35,7 @@ _atomic_lock(volatile _spinlock_lock_t * lock) * * (No change to the condition codes are documented.) */ - __asm__("ldstub %0,%1" - : "=m" (*lock), "=r" (old) - : "0" (*lock)); + __asm__("ldstub [%1], %0" : "=&r" (old) : "r" (lock) : "memory"); return (old == _SPINLOCK_LOCKED); } |