diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S index 2d6b685668..6c59f3e6c0 100644 --- a/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 2003, 2004, 2006 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 @@ -385,6 +385,21 @@ __condvar_w_cleanup: mov #1, r2 mov #0, r3 + /* We increment the wakeup_seq counter only if it is lower than + total_seq. If this is not the case the thread was woken and + then canceled. In this case we ignore the signal. */ + mov.l @(total_seq+4,r8), r0 + mov.l @(wakeup_seq+4,r8), r1 + cmp/hi r1, r0 + bt/s 6f + cmp/hi r0, r1 + bt 7f + mov.l @(total_seq,r8), r0 + mov.l @(wakeup_seq,r8), r1 + cmp/hs r0, r1 + bt 7f + +6: clrt mov.l @(wakeup_seq,r8),r0 mov.l @(wakeup_seq+4,r8),r1 @@ -396,6 +411,7 @@ __condvar_w_cleanup: add r2, r0 mov.l r0,@(cond_futex,r8) +7: clrt mov.l @(woken_seq,r8),r0 mov.l @(woken_seq+4,r8),r1 |