diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2006-09-10 18:59:03 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2006-09-10 18:59:03 +0000 |
| commit | effe3e2d1a084fde8fae9b91febb28c97781f9e5 (patch) | |
| tree | 97749ea80a323592d3d80f24627f9fcb8b8b7297 /nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S | |
| parent | b2adc86677d215d3d8071393d2a69357dd844821 (diff) | |
Updated to fedora-glibc-20060910T1832cvs/fedora-glibc-2_4_90-31
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S index d282785151..f16c7d9198 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -297,12 +297,22 @@ __condvar_w_cleanup: cmpl 12(%esp), %eax jne 3f - addl $1, wakeup_seq(%ebx) + /* 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. */ + movl total_seq(%ebx), %eax + movl total_seq+4(%ebx), %edi + cmpl wakeup_seq+4(%ebx), %edi + jb 6f + ja 7f + cmpl wakeup_seq(%ebx), %eax + jbe 7f + +6: addl $1, wakeup_seq(%ebx) adcl $0, wakeup_seq+4(%ebx) - addl $1, cond_futex(%ebx) - addl $1, woken_seq(%ebx) +7: addl $1, woken_seq(%ebx) adcl $0, woken_seq+4(%ebx) 3: subl $(1 << clock_bits), cond_nwaiters(%ebx) |