diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S index 936a4e3868..320fe18fe8 100644 --- a/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S +++ b/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. +/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -38,17 +38,12 @@ __lll_mutex_lock_wait: mov r5, r8 mov #0, r7 /* No timeout. */ mov #FUTEX_WAIT, r5 -1: + mov #2, r4 cmp/eq r4, r6 - bt 3f - - mov #1, r3 - CMPXCHG (r3, @r8, r4, r2) - tst r2, r2 - bt 2f + bf 2f -3: +1: mov r8, r4 mov #SYS_futex, r3 extu.b r3, r3 @@ -56,9 +51,9 @@ __lll_mutex_lock_wait: SYSCALL_INST_PAD 2: - mov #0, r3 mov #2, r4 - CMPXCHG (r3, @r8, r4, r2) + XCHG (r4, @r8, r2) + tst r2, r2 bf 1b mov.l @r15+, r8 |