From 3730d95c778f794fff48574c95d6658d6d5224ed Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 13 Feb 2004 08:04:27 +0000 Subject: Update. 2004-02-13 Ulrich Drepper * 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. --- .../sysv/linux/i386/i486/pthread_cond_timedwait.S | 26 ++++++++++++++++++-- .../sysv/linux/x86_64/pthread_cond_timedwait.S | 28 ++++++++++++++++++++-- 2 files changed, 50 insertions(+), 4 deletions(-) (limited to 'nptl/sysdeps/unix/sysv/linux') diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S index 06ad11c11b..1783095ff8 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/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 , 2002. @@ -202,8 +202,20 @@ __pthread_cond_timedwait: 15: cmpl $-ETIMEDOUT, %esi jne 8b + jmp 24f -13: addl $1, wakeup_seq(%ebx) + /* Lock. */ +13: movl $1, %edx + xorl %eax, %eax + LOCK +#if cond_lock == 0 + cmpxchgl %edx, (%ebx) +#else + cmpxchgl %edx, cond_lock(%ebx) +#endif + jnz 23f + +24: addl $1, wakeup_seq(%ebx) adcl $0, wakeup_seq+4(%ebx) movl $ETIMEDOUT, %esi jmp 14f @@ -335,6 +347,16 @@ __pthread_cond_timedwait: js 13b jmp 21b #endif + + /* Locking after time elapsed failed. */ +23: +#if cond_lock == 0 + movl %ebx, %ecx +#else + leal cond_lock(%ebx), %ecx +#endif + call __lll_mutex_lock_wait + jmp 24b .size __pthread_cond_timedwait, .-__pthread_cond_timedwait versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait, GLIBC_2_3_2) 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 , 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, -- cgit 1.4.1