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| author | Ulrich Drepper <drepper@redhat.com> | 2004-02-13 08:04:27 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-02-13 08:04:27 +0000 |
| commit | 3730d95c778f794fff48574c95d6658d6d5224ed (patch) | |
| tree | f8adba96ea8c06f8ed8ad97e137ef2ef26189063 /nptl/sysdeps/unix/sysv/linux/x86_64 | |
| parent | 2a1ece14a516ff546f38f5e2a68a23f0cd8a6701 (diff) | |
| download | glibc-3730d95c778f794fff48574c95d6658d6d5224ed.tar.gz glibc-3730d95c778f794fff48574c95d6658d6d5224ed.tar.xz glibc-3730d95c778f794fff48574c95d6658d6d5224ed.zip | |
Update.
2004-02-13 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S (__pthread_cond_timedwait): Get internal lock in case timeout has passed before the futex syscall. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: Likewise.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/x86_64')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S index e001441490..cd5d64791f 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -212,8 +212,21 @@ __pthread_cond_timedwait: 15: cmpq $-ETIMEDOUT, %r14 jne 8b + jmp 24f -13: incq wakeup_seq(%rdi) + /* Lock. */ +13: movq 8(%rsp), %rdi + movl $1, %esi + xorl %eax, %eax + LOCK +#if cond_lock == 0 + cmpxchgl %esi, (%rdi) +#else + cmpxchgl %esi, cond_lock(%rdi) +#endif + jne 23f + +24: incq wakeup_seq(%rdi) movq $ETIMEDOUT, %r14 jmp 14f @@ -327,6 +340,17 @@ __pthread_cond_timedwait: js 13b jmp 21b #endif + + /* Locking after time elapsed failed. */ +23: +#if cond_lock != 0 + addq $cond_lock, %rdi +#endif + callq __lll_mutex_lock_wait +#if cond_lock != 0 + subq $cond_lock, %rdi +#endif + jmp 24b .LENDCODE: .size __pthread_cond_timedwait, .-__pthread_cond_timedwait versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait, |