From ce2eec56c3845ce70259e2af936d1e816c3763da Mon Sep 17 00:00:00 2001 From: Dmitry Chestnykh Date: Fri, 19 Apr 2024 12:45:13 +0300 Subject: Switch x86 NPTL impl to generic C code. The asm code has high maintainance cost. The cost is extremely high if we take into consideration time64 implementation which implies operating with 64bit numbers on 32bit system. Also glibc uses mainly C in NPTL code. Signed-off-by: Dmitry Chestnykh --- .../sysdeps/unix/sysv/linux/i386/Makefile.arch | 5 +- .../unix/sysv/linux/i386/i486/libc-lowlevellock.S | 19 - .../unix/sysv/linux/i386/i486/lowlevellock.S | 464 -------------- .../unix/sysv/linux/i386/i486/lowlevelrobustlock.S | 233 ------- .../sysv/linux/i386/i486/pthread_barrier_wait.S | 186 ------ .../sysv/linux/i386/i486/pthread_cond_broadcast.S | 238 ------- .../sysv/linux/i386/i486/pthread_cond_signal.S | 215 ------- .../sysv/linux/i386/i486/pthread_cond_timedwait.S | 698 --------------------- .../unix/sysv/linux/i386/i486/pthread_cond_wait.S | 594 ------------------ .../sysv/linux/i386/i486/pthread_rwlock_rdlock.S | 194 ------ .../linux/i386/i486/pthread_rwlock_timedrdlock.S | 244 ------- .../linux/i386/i486/pthread_rwlock_timedwrlock.S | 237 ------- .../sysv/linux/i386/i486/pthread_rwlock_unlock.S | 156 ----- .../sysv/linux/i386/i486/pthread_rwlock_wrlock.S | 185 ------ .../sysdeps/unix/sysv/linux/i386/i486/sem_post.S | 139 ---- .../unix/sysv/linux/i386/i486/sem_timedwait.S | 328 ---------- .../unix/sysv/linux/i386/i486/sem_trywait.S | 76 --- .../sysdeps/unix/sysv/linux/i386/i486/sem_wait.S | 267 -------- .../unix/sysv/linux/i386/i586/libc-lowlevellock.S | 1 - .../unix/sysv/linux/i386/i586/lowlevellock.S | 19 - .../unix/sysv/linux/i386/i586/lowlevelrobustlock.S | 19 - .../sysv/linux/i386/i586/pthread_barrier_wait.S | 19 - .../sysv/linux/i386/i586/pthread_cond_broadcast.S | 19 - .../sysv/linux/i386/i586/pthread_cond_signal.S | 19 - .../sysv/linux/i386/i586/pthread_cond_timedwait.S | 19 - .../unix/sysv/linux/i386/i586/pthread_cond_wait.S | 19 - .../sysv/linux/i386/i586/pthread_rwlock_rdlock.S | 19 - .../linux/i386/i586/pthread_rwlock_timedrdlock.S | 19 - .../linux/i386/i586/pthread_rwlock_timedwrlock.S | 19 - .../sysv/linux/i386/i586/pthread_rwlock_unlock.S | 19 - .../sysv/linux/i386/i586/pthread_rwlock_wrlock.S | 19 - .../sysdeps/unix/sysv/linux/i386/i586/sem_post.S | 19 - .../unix/sysv/linux/i386/i586/sem_timedwait.S | 19 - .../unix/sysv/linux/i386/i586/sem_trywait.S | 19 - .../sysdeps/unix/sysv/linux/i386/i586/sem_wait.S | 19 - .../unix/sysv/linux/i386/i686/libc-lowlevellock.S | 1 - .../unix/sysv/linux/i386/i686/lowlevellock.S | 19 - .../unix/sysv/linux/i386/i686/lowlevelrobustlock.S | 19 - .../sysv/linux/i386/i686/pthread_barrier_wait.S | 19 - .../sysv/linux/i386/i686/pthread_cond_broadcast.S | 19 - .../sysv/linux/i386/i686/pthread_cond_signal.S | 19 - .../sysv/linux/i386/i686/pthread_cond_timedwait.S | 20 - .../unix/sysv/linux/i386/i686/pthread_cond_wait.S | 19 - .../sysv/linux/i386/i686/pthread_rwlock_rdlock.S | 19 - .../linux/i386/i686/pthread_rwlock_timedrdlock.S | 19 - .../linux/i386/i686/pthread_rwlock_timedwrlock.S | 19 - .../sysv/linux/i386/i686/pthread_rwlock_unlock.S | 20 - .../sysv/linux/i386/i686/pthread_rwlock_wrlock.S | 19 - .../sysdeps/unix/sysv/linux/i386/i686/sem_post.S | 19 - .../unix/sysv/linux/i386/i686/sem_timedwait.S | 19 - .../unix/sysv/linux/i386/i686/sem_trywait.S | 19 - .../sysdeps/unix/sysv/linux/i386/i686/sem_wait.S | 19 - .../sysdeps/unix/sysv/linux/i386/lowlevellock.h | 584 ----------------- .../unix/sysv/linux/i386/pthread_spin_init.c | 1 - .../unix/sysv/linux/i386/pthread_spin_unlock.S | 1 - .../nptl/sysdeps/unix/sysv/linux/lowlevellock.h | 26 +- 56 files changed, 17 insertions(+), 5685 deletions(-) delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_wait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/libc-lowlevellock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/lowlevellock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/lowlevelrobustlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_barrier_wait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_broadcast.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_signal.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_timedwait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_wait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_rdlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedrdlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedwrlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_unlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_wrlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_post.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_timedwait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_trywait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_wait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/libc-lowlevellock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/lowlevellock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/lowlevelrobustlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_barrier_wait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_broadcast.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_signal.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_timedwait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_wait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_rdlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedrdlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedwrlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_unlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_wrlock.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_post.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_timedwait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_trywait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_wait.S delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_init.c delete mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_unlock.S (limited to 'libpthread/nptl/sysdeps') diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch index ee38a6988..c244b1f62 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch @@ -5,9 +5,8 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pthread_spin_unlock.S pthread_once.S -libpthread_linux_arch_CSRC = pthread_spin_init.c +libpthread_linux_arch_SSRC = pthread_once.S +libpthread_linux_arch_CSRC = libc_linux_arch_CSRC = fork.c -ASFLAGS += -DUSE___THREAD diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S deleted file mode 100644 index 74dda472f..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S +++ /dev/null @@ -1,19 +0,0 @@ -/* Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include "lowlevellock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S deleted file mode 100644 index ff9a7847f..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S +++ /dev/null @@ -1,464 +0,0 @@ -/* Copyright (C) 2002-2004, 2006, 2007, 2009 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include -#include -#include -#include - - .text - -#ifdef __ASSUME_PRIVATE_FUTEX -# define LOAD_PRIVATE_FUTEX_WAIT(reg) \ - movl $(FUTEX_WAIT | FUTEX_PRIVATE_FLAG), reg -# define LOAD_PRIVATE_FUTEX_WAKE(reg) \ - movl $(FUTEX_WAKE | FUTEX_PRIVATE_FLAG), reg -# define LOAD_FUTEX_WAIT(reg) \ - xorl $(FUTEX_WAIT | FUTEX_PRIVATE_FLAG), reg -# define LOAD_FUTEX_WAIT_ABS(reg) \ - xorl $(FUTEX_WAIT_BITSET | FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME), reg -# define LOAD_FUTEX_WAKE(reg) \ - xorl $(FUTEX_WAKE | FUTEX_PRIVATE_FLAG), reg -#else -# if FUTEX_WAIT == 0 -# define LOAD_PRIVATE_FUTEX_WAIT(reg) \ - movl %gs:PRIVATE_FUTEX, reg -# else -# define LOAD_PRIVATE_FUTEX_WAIT(reg) \ - movl %gs:PRIVATE_FUTEX, reg ; \ - orl $FUTEX_WAIT, reg -# endif -# define LOAD_PRIVATE_FUTEX_WAKE(reg) \ - movl %gs:PRIVATE_FUTEX, reg ; \ - orl $FUTEX_WAKE, reg -# if FUTEX_WAIT == 0 -# define LOAD_FUTEX_WAIT(reg) \ - xorl $FUTEX_PRIVATE_FLAG, reg ; \ - andl %gs:PRIVATE_FUTEX, reg -# else -# define LOAD_FUTEX_WAIT(reg) \ - xorl $FUTEX_PRIVATE_FLAG, reg ; \ - andl %gs:PRIVATE_FUTEX, reg ; \ - orl $FUTEX_WAIT, reg -# endif -# define LOAD_FUTEX_WAIT_ABS(reg) \ - xorl $FUTEX_PRIVATE_FLAG, reg ; \ - andl %gs:PRIVATE_FUTEX, reg ; \ - orl $FUTEX_WAIT_BITSET | FUTEX_CLOCK_REALTIME, reg -# define LOAD_FUTEX_WAKE(reg) \ - xorl $FUTEX_PRIVATE_FLAG, reg ; \ - andl %gs:PRIVATE_FUTEX, reg ; \ - orl $FUTEX_WAKE, reg -#endif - - .globl __lll_lock_wait_private - .type __lll_lock_wait_private,@function - .hidden __lll_lock_wait_private -#ifndef IS_IN_libpthread - .weak __lll_lock_wait_private -#endif - .align 16 -__lll_lock_wait_private: - cfi_startproc - pushl %edx - cfi_adjust_cfa_offset(4) - pushl %ebx - cfi_adjust_cfa_offset(4) - pushl %esi - cfi_adjust_cfa_offset(4) - cfi_offset(%edx, -8) - cfi_offset(%ebx, -12) - cfi_offset(%esi, -16) - - movl $2, %edx - movl %ecx, %ebx - xorl %esi, %esi /* No timeout. */ - LOAD_PRIVATE_FUTEX_WAIT (%ecx) - - cmpl %edx, %eax /* NB: %edx == 2 */ - jne 2f - -1: movl $SYS_futex, %eax - ENTER_KERNEL - -2: movl %edx, %eax - xchgl %eax, (%ebx) /* NB: lock is implied */ - - testl %eax, %eax - jnz 1b - - popl %esi - cfi_adjust_cfa_offset(-4) - cfi_restore(%esi) - popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - popl %edx - cfi_adjust_cfa_offset(-4) - cfi_restore(%edx) - ret - cfi_endproc - .size __lll_lock_wait_private,.-__lll_lock_wait_private - -#ifdef NOT_IN_libc - .globl __lll_lock_wait - .type __lll_lock_wait,@function - .hidden __lll_lock_wait - .align 16 -__lll_lock_wait: - cfi_startproc - pushl %edx - cfi_adjust_cfa_offset(4) - pushl %ebx - cfi_adjust_cfa_offset(4) - pushl %esi - cfi_adjust_cfa_offset(4) - cfi_offset(%edx, -8) - cfi_offset(%ebx, -12) - cfi_offset(%esi, -16) - - movl %edx, %ebx - movl $2, %edx - xorl %esi, %esi /* No timeout. */ - LOAD_FUTEX_WAIT (%ecx) - - cmpl %edx, %eax /* NB: %edx == 2 */ - jne 2f - -1: movl $SYS_futex, %eax - ENTER_KERNEL - -2: movl %edx, %eax - xchgl %eax, (%ebx) /* NB: lock is implied */ - - testl %eax, %eax - jnz 1b - - popl %esi - cfi_adjust_cfa_offset(-4) - cfi_restore(%esi) - popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - popl %edx - cfi_adjust_cfa_offset(-4) - cfi_restore(%edx) - ret - cfi_endproc - .size __lll_lock_wait,.-__lll_lock_wait - - /* %ecx: futex - %esi: flags - %edx: timeout - %eax: futex value - */ - .globl __lll_timedlock_wait - .type __lll_timedlock_wait,@function - .hidden __lll_timedlock_wait - .align 16 -__lll_timedlock_wait: - cfi_startproc - pushl %ebp - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%ebp, 0) - pushl %ebx - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%ebx, 0) - -# ifndef __ASSUME_FUTEX_CLOCK_REALTIME -# ifdef __PIC__ - LOAD_PIC_REG (bx) - cmpl $0, __have_futex_clock_realtime@GOTOFF(%ebx) -# else - cmpl $0, __have_futex_clock_realtime -# endif - je .Lreltmo -# endif - - movl %ecx, %ebx - movl %esi, %ecx - movl %edx, %esi - movl $0xffffffff, %ebp - LOAD_FUTEX_WAIT_ABS (%ecx) - - movl $2, %edx - cmpl %edx, %eax - jne 2f - -1: movl $SYS_futex, %eax - movl $2, %edx - ENTER_KERNEL - -2: xchgl %edx, (%ebx) /* NB: lock is implied */ - - testl %edx, %edx - jz 3f - - cmpl $-ETIMEDOUT, %eax - je 4f - cmpl $-EINVAL, %eax - jne 1b -4: movl %eax, %edx - negl %edx - -3: movl %edx, %eax -7: popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - popl %ebp - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebp) - ret - -# ifndef __ASSUME_FUTEX_CLOCK_REALTIME -.Lreltmo: - /* Check for a valid timeout value. */ - cmpl $1000000000, 4(%edx) - jae 3f - - pushl %esi - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%esi, 0) - pushl %edi - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%edi, 0) - - /* Stack frame for the timespec and timeval structs. */ - subl $8, %esp - cfi_adjust_cfa_offset(8) - - movl %ecx, %ebp - movl %edx, %edi - - movl $2, %edx - xchgl %edx, (%ebp) - - test %edx, %edx - je 6f - -1: - /* Get current time. */ - movl %esp, %ebx - xorl %ecx, %ecx - movl $__NR_gettimeofday, %eax - ENTER_KERNEL - - /* Compute relative timeout. */ - movl 4(%esp), %eax - movl $1000, %edx - mul %edx /* Milli seconds to nano seconds. */ - movl (%edi), %ecx - movl 4(%edi), %edx - subl (%esp), %ecx - subl %eax, %edx - jns 4f - addl $1000000000, %edx - subl $1, %ecx -4: testl %ecx, %ecx - js 2f /* Time is already up. */ - - /* Store relative timeout. */ - movl %ecx, (%esp) - movl %edx, 4(%esp) - - /* Futex call. */ - movl %ebp, %ebx - movl $2, %edx - movl %esp, %esi - movl 16(%esp), %ecx - LOAD_FUTEX_WAIT (%ecx) - movl $SYS_futex, %eax - ENTER_KERNEL - - /* NB: %edx == 2 */ - xchgl %edx, (%ebp) - - testl %edx, %edx - je 6f - - cmpl $-ETIMEDOUT, %eax - jne 1b -2: movl $ETIMEDOUT, %edx - -6: addl $8, %esp - cfi_adjust_cfa_offset(-8) - popl %edi - cfi_adjust_cfa_offset(-4) - cfi_restore(%edi) - popl %esi - cfi_adjust_cfa_offset(-4) - cfi_restore(%esi) -7: popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - popl %ebp - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebp) - movl %edx, %eax - ret - -3: movl $EINVAL, %edx - jmp 7b -# endif - cfi_endproc - .size __lll_timedlock_wait,.-__lll_timedlock_wait -#endif - - .globl __lll_unlock_wake_private - .type __lll_unlock_wake_private,@function - .hidden __lll_unlock_wake_private -#ifndef IS_IN_libpthread - .weak __lll_unlock_wake_private -#endif - .align 16 -__lll_unlock_wake_private: - cfi_startproc - pushl %ebx - cfi_adjust_cfa_offset(4) - pushl %ecx - cfi_adjust_cfa_offset(4) - pushl %edx - cfi_adjust_cfa_offset(4) - cfi_offset(%ebx, -8) - cfi_offset(%ecx, -12) - cfi_offset(%edx, -16) - - movl %eax, %ebx - movl $0, (%eax) - LOAD_PRIVATE_FUTEX_WAKE (%ecx) - movl $1, %edx /* Wake one thread. */ - movl $SYS_futex, %eax - ENTER_KERNEL - - popl %edx - cfi_adjust_cfa_offset(-4) - cfi_restore(%edx) - popl %ecx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ecx) - popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - ret - cfi_endproc - .size __lll_unlock_wake_private,.-__lll_unlock_wake_private - -#ifdef NOT_IN_libc - .globl __lll_unlock_wake - .type __lll_unlock_wake,@function - .hidden __lll_unlock_wake - .align 16 -__lll_unlock_wake: - cfi_startproc - pushl %ebx - cfi_adjust_cfa_offset(4) - pushl %ecx - cfi_adjust_cfa_offset(4) - pushl %edx - cfi_adjust_cfa_offset(4) - cfi_offset(%ebx, -8) - cfi_offset(%ecx, -12) - cfi_offset(%edx, -16) - - movl %eax, %ebx - movl $0, (%eax) - LOAD_FUTEX_WAKE (%ecx) - movl $1, %edx /* Wake one thread. */ - movl $SYS_futex, %eax - ENTER_KERNEL - - popl %edx - cfi_adjust_cfa_offset(-4) - cfi_restore(%edx) - popl %ecx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ecx) - popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - ret - cfi_endproc - .size __lll_unlock_wake,.-__lll_unlock_wake - - .globl __lll_timedwait_tid - .type __lll_timedwait_tid,@function - .hidden __lll_timedwait_tid - .align 16 -__lll_timedwait_tid: - pushl %edi - pushl %esi - pushl %ebx - pushl %ebp - - movl %eax, %ebp - movl %edx, %edi - subl $8, %esp - - /* Get current time. */ -2: movl %esp, %ebx - xorl %ecx, %ecx - movl $__NR_gettimeofday, %eax - ENTER_KERNEL - - /* Compute relative timeout. */ - movl 4(%esp), %eax - movl $1000, %edx - mul %edx /* Milli seconds to nano seconds. */ - movl (%edi), %ecx - movl 4(%edi), %edx - subl (%esp), %ecx - subl %eax, %edx - jns 5f - addl $1000000000, %edx - subl $1, %ecx -5: testl %ecx, %ecx - js 6f /* Time is already up. */ - - movl %ecx, (%esp) /* Store relative timeout. */ - movl %edx, 4(%esp) - - movl (%ebp), %edx - testl %edx, %edx - jz 4f - - movl %esp, %esi - /* XXX The kernel so far uses global futex for the wakeup at - all times. */ - xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */ - movl %ebp, %ebx - movl $SYS_futex, %eax - ENTER_KERNEL - - cmpl $0, (%ebx) - jne 1f -4: xorl %eax, %eax - -3: addl $8, %esp - popl %ebp - popl %ebx - popl %esi - popl %edi - ret - -1: cmpl $-ETIMEDOUT, %eax - jne 2b -6: movl $ETIMEDOUT, %eax - jmp 3b - .size __lll_timedwait_tid,.-__lll_timedwait_tid -#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S deleted file mode 100644 index 7196d40e4..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S +++ /dev/null @@ -1,233 +0,0 @@ -/* Copyright (C) 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include -#include -#include -#include -#include - - .text - -#define FUTEX_WAITERS 0x80000000 -#define FUTEX_OWNER_DIED 0x40000000 - -#ifdef __ASSUME_PRIVATE_FUTEX -# define LOAD_FUTEX_WAIT(reg) \ - xorl $(FUTEX_WAIT | FUTEX_PRIVATE_FLAG), reg -#else -# if FUTEX_WAIT == 0 -# define LOAD_FUTEX_WAIT(reg) \ - xorl $FUTEX_PRIVATE_FLAG, reg ; \ - andl %gs:PRIVATE_FUTEX, reg -# else -# define LOAD_FUTEX_WAIT(reg) \ - xorl $FUTEX_PRIVATE_FLAG, reg ; \ - andl %gs:PRIVATE_FUTEX, reg ; \ - orl $FUTEX_WAIT, reg -# endif -#endif - - .globl __lll_robust_lock_wait - .type __lll_robust_lock_wait,@function - .hidden __lll_robust_lock_wait - .align 16 -__lll_robust_lock_wait: - cfi_startproc - pushl %edx - cfi_adjust_cfa_offset(4) - pushl %ebx - cfi_adjust_cfa_offset(4) - pushl %esi - cfi_adjust_cfa_offset(4) - cfi_offset(%edx, -8) - cfi_offset(%ebx, -12) - cfi_offset(%esi, -16) - - movl %edx, %ebx - xorl %esi, %esi /* No timeout. */ - LOAD_FUTEX_WAIT (%ecx) - -4: movl %eax, %edx - orl $FUTEX_WAITERS, %edx - - testl $FUTEX_OWNER_DIED, %eax - jnz 3f - - cmpl %edx, %eax /* NB: %edx == 2 */ - je 1f - - LOCK - cmpxchgl %edx, (%ebx) - jnz 2f - -1: movl $SYS_futex, %eax - ENTER_KERNEL - - movl (%ebx), %eax - -2: test %eax, %eax - jne 4b - - movl %gs:TID, %edx - orl $FUTEX_WAITERS, %edx - LOCK - cmpxchgl %edx, (%ebx) - jnz 4b - /* NB: %eax == 0 */ - -3: popl %esi - cfi_adjust_cfa_offset(-4) - cfi_restore(%esi) - popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - popl %edx - cfi_adjust_cfa_offset(-4) - cfi_restore(%edx) - ret - cfi_endproc - .size __lll_robust_lock_wait,.-__lll_robust_lock_wait - - - .globl __lll_robust_timedlock_wait - .type __lll_robust_timedlock_wait,@function - .hidden __lll_robust_timedlock_wait - .align 16 -__lll_robust_timedlock_wait: - cfi_startproc - /* Check for a valid timeout value. */ - cmpl $1000000000, 4(%edx) - jae 3f - - pushl %edi - cfi_adjust_cfa_offset(4) - pushl %esi - cfi_adjust_cfa_offset(4) - pushl %ebx - cfi_adjust_cfa_offset(4) - pushl %ebp - cfi_adjust_cfa_offset(4) - cfi_offset(%edi, -8) - cfi_offset(%esi, -12) - cfi_offset(%ebx, -16) - cfi_offset(%ebp, -20) - - /* Stack frame for the timespec and timeval structs. */ - subl $12, %esp - cfi_adjust_cfa_offset(12) - - movl %ecx, %ebp - movl %edx, %edi - -1: movl %eax, 8(%esp) - - /* Get current time. */ - movl %esp, %ebx - xorl %ecx, %ecx - movl $__NR_gettimeofday, %eax - ENTER_KERNEL - - /* Compute relative timeout. */ - movl 4(%esp), %eax - movl $1000, %edx - mul %edx /* Milli seconds to nano seconds. */ - movl (%edi), %ecx - movl 4(%edi), %edx - subl (%esp), %ecx - subl %eax, %edx - jns 4f - addl $1000000000, %edx - subl $1, %ecx -4: testl %ecx, %ecx - js 8f /* Time is already up. */ - - /* Store relative timeout. */ - movl %ecx, (%esp) - movl %edx, 4(%esp) - - movl %ebp, %ebx - - movl 8(%esp), %edx - movl %edx, %eax - orl $FUTEX_WAITERS, %edx - - testl $FUTEX_OWNER_DIED, %eax - jnz 6f - - cmpl %eax, %edx - je 2f - - LOCK - cmpxchgl %edx, (%ebx) - movl $0, %ecx /* Must use mov to avoid changing cc. */ - jnz 5f - -2: - /* Futex call. */ - movl %esp, %esi - movl 20(%esp), %ecx - LOAD_FUTEX_WAIT (%ecx) - movl $SYS_futex, %eax - ENTER_KERNEL - movl %eax, %ecx - - movl (%ebx), %eax - -5: testl %eax, %eax - jne 7f - - movl %gs:TID, %edx - orl $FUTEX_WAITERS, %edx - LOCK - cmpxchgl %edx, (%ebx) - jnz 7f - -6: addl $12, %esp - cfi_adjust_cfa_offset(-12) - popl %ebp - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebp) - popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - popl %esi - cfi_adjust_cfa_offset(-4) - cfi_restore(%esi) - popl %edi - cfi_adjust_cfa_offset(-4) - cfi_restore(%edi) - ret - -3: movl $EINVAL, %eax - ret - - cfi_adjust_cfa_offset(28) - cfi_offset(%edi, -8) - cfi_offset(%esi, -12) - cfi_offset(%ebx, -16) - cfi_offset(%ebp, -20) - /* Check whether the time expired. */ -7: cmpl $-ETIMEDOUT, %ecx - jne 1b - -8: movl $ETIMEDOUT, %eax - jmp 6b - cfi_endproc - .size __lll_robust_timedlock_wait,.-__lll_robust_timedlock_wait diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S deleted file mode 100644 index 5443a3805..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S +++ /dev/null @@ -1,186 +0,0 @@ -/* Copyright (C) 2002, 2003, 2004, 2007 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include -#include - - .text - - .globl pthread_barrier_wait - .type pthread_barrier_wait,@function - .align 16 -pthread_barrier_wait: - cfi_startproc - pushl %ebx - cfi_adjust_cfa_offset(4) - cfi_offset(%ebx, -8) - - movl 8(%esp), %ebx - - /* Get the mutex. */ - movl $1, %edx - xorl %eax, %eax - LOCK - cmpxchgl %edx, MUTEX(%ebx) - jnz 1f - - /* One less waiter. If this was the last one needed wake - everybody. */ -2: subl $1, LEFT(%ebx) - je 3f - - /* There are more threads to come. */ - pushl %esi - cfi_adjust_cfa_offset(4) - cfi_offset(%esi, -12) - -#if CURR_EVENT == 0 - movl (%ebx), %edx -#else - movl CURR_EVENT(%ebx), %edx -#endif - - /* Release the mutex. */ - LOCK - subl $1, MUTEX(%ebx) - jne 6f - - /* Wait for the remaining threads. The call will return immediately - if the CURR_EVENT memory has meanwhile been changed. */ -7: -#if FUTEX_WAIT == 0 - movl PRIVATE(%ebx), %ecx -#else - movl $FUTEX_WAIT, %ecx - orl PRIVATE(%ebx), %ecx -#endif - xorl %esi, %esi -8: movl $SYS_futex, %eax - ENTER_KERNEL - - /* Don't return on spurious wakeups. The syscall does not change - any register except %eax so there is no need to reload any of - them. */ -#if CURR_EVENT == 0 - cmpl %edx, (%ebx) -#else - cmpl %edx, CURR_EVENT(%ebx) -#endif - je 8b - - /* Increment LEFT. If this brings the count back to the - initial count unlock the object. */ - movl $1, %edx - movl INIT_COUNT(%ebx), %ecx - LOCK - xaddl %edx, LEFT(%ebx) - subl $1, %ecx - cmpl %ecx, %edx - jne 10f - - /* Release the mutex. We cannot release the lock before - waking the waiting threads since otherwise a new thread might - arrive and gets waken up, too. */ - LOCK - subl $1, MUTEX(%ebx) - jne 9f - - /* Note: %esi is still zero. */ -10: movl %esi, %eax /* != PTHREAD_BARRIER_SERIAL_THREAD */ - - popl %esi - cfi_adjust_cfa_offset(-4) - cfi_restore(%esi) - popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - ret - - cfi_adjust_cfa_offset(4) - cfi_offset(%ebx, -8) - - /* The necessary number of threads arrived. */ -3: -#if CURR_EVENT == 0 - addl $1, (%ebx) -#else - addl $1, CURR_EVENT(%ebx) -#endif - - /* Wake up all waiters. The count is a signed number in the kernel - so 0x7fffffff is the highest value. */ - movl $0x7fffffff, %edx - movl $FUTEX_WAKE, %ecx - orl PRIVATE(%ebx), %ecx - movl $SYS_futex, %eax - ENTER_KERNEL - - /* Increment LEFT. If this brings the count back to the - initial count unlock the object. */ - movl $1, %edx - movl INIT_COUNT(%ebx), %ecx - LOCK - xaddl %edx, LEFT(%ebx) - subl $1, %ecx - cmpl %ecx, %edx - jne 5f - - /* Release the mutex. We cannot release the lock before - waking the waiting threads since otherwise a new thread might - arrive and gets waken up, too. */ - LOCK - subl $1, MUTEX(%ebx) - jne 4f - -5: orl $-1, %eax /* == PTHREAD_BARRIER_SERIAL_THREAD */ - - popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - ret - - cfi_adjust_cfa_offset(4) - cfi_offset(%ebx, -8) -1: movl PRIVATE(%ebx), %ecx - leal MUTEX(%ebx), %edx - xorl $LLL_SHARED, %ecx - call __lll_lock_wait - jmp 2b - -4: movl PRIVATE(%ebx), %ecx - leal MUTEX(%ebx), %eax - xorl $LLL_SHARED, %ecx - call __lll_unlock_wake - jmp 5b - - cfi_adjust_cfa_offset(4) - cfi_offset(%esi, -12) -6: movl PRIVATE(%ebx), %ecx - leal MUTEX(%ebx), %eax - xorl $LLL_SHARED, %ecx - call __lll_unlock_wake - jmp 7b - -9: movl PRIVATE(%ebx), %ecx - leal MUTEX(%ebx), %eax - xorl $LLL_SHARED, %ecx - call __lll_unlock_wake - jmp 10b - cfi_endproc - .size pthread_barrier_wait,.-pthread_barrier_wait diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S deleted file mode 100644 index d53aa7282..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S +++ /dev/null @@ -1,238 +0,0 @@ -/* Copyright (C) 2002,2003,2004,2006,2007,2009 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include -#include -#include -#include -#include -#include - - .text - - /* int pthread_cond_broadcast (pthread_cond_t *cond) */ - .globl __pthread_cond_broadcast - .type __pthread_cond_broadcast, @function - .protected __pthread_cond_broadcast - .align 16 -__pthread_cond_broadcast: - cfi_startproc - pushl %ebx - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%ebx, 0) - pushl %esi - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%esi, 0) - pushl %edi - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%edi, 0) - pushl %ebp - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%ebp, 0) - cfi_remember_state - - movl 20(%esp), %ebx - - /* Get internal lock. */ - movl $1, %edx - xorl %eax, %eax - LOCK -#if cond_lock == 0 - cmpxchgl %edx, (%ebx) -#else - cmpxchgl %edx, cond_lock(%ebx) -#endif - jnz 1f - -2: addl $cond_futex, %ebx - movl total_seq+4-cond_futex(%ebx), %eax - movl total_seq-cond_futex(%ebx), %ebp - cmpl wakeup_seq+4-cond_futex(%ebx), %eax - ja 3f - jb 4f - cmpl wakeup_seq-cond_futex(%ebx), %ebp - jna 4f - - /* Cause all currently waiting threads to recognize they are - woken up. */ -3: movl %ebp, wakeup_seq-cond_futex(%ebx) - movl %eax, wakeup_seq-cond_futex+4(%ebx) - movl %ebp, woken_seq-cond_futex(%ebx) - movl %eax, woken_seq-cond_futex+4(%ebx) - addl %ebp, %ebp - addl $1, broadcast_seq-cond_futex(%ebx) - movl %ebp, (%ebx) - - /* Get the address of the mutex used. */ - movl dep_mutex-cond_futex(%ebx), %edi - - /* Unlock. */ - LOCK - subl $1, cond_lock-cond_futex(%ebx) - jne 7f - - /* Don't use requeue for pshared condvars. */ -8: cmpl $-1, %edi - je 9f - - /* Do not use requeue for pshared condvars. */ - testl $PS_BIT, MUTEX_KIND(%edi) - jne 9f - - /* Requeue to a non-robust PI mutex if the PI bit is set and - the robust bit is not set. */ - movl MUTEX_KIND(%edi), %eax - andl $(ROBUST_BIT|PI_BIT), %eax - cmpl $PI_BIT, %eax - je 81f - - /* Wake up all threads. */ -#ifdef __ASSUME_PRIVATE_FUTEX - movl $(FUTEX_CMP_REQUEUE|FUTEX_PRIVATE_FLAG), %ecx -#else - movl %gs:PRIVATE_FUTEX, %ecx - orl $FUTEX_CMP_REQUEUE, %ecx -#endif - movl $SYS_futex, %eax - movl $0x7fffffff, %esi - movl $1, %edx - /* Get the address of the futex involved. */ -# if MUTEX_FUTEX != 0 - addl $MUTEX_FUTEX, %edi -# endif -/* FIXME: Until Ingo fixes 4G/4G vDSO, 6 arg syscalls are broken for sysenter. - ENTER_KERNEL */ - int $0x80 - - /* For any kind of error, which mainly is EAGAIN, we try again - with WAKE. The general test also covers running on old - kernels. */ - cmpl $0xfffff001, %eax - jae 9f - -6: xorl %eax, %eax - popl %ebp - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebp) - popl %edi - cfi_adjust_cfa_offset(-4) - cfi_restore(%edi) - popl %esi - cfi_adjust_cfa_offset(-4) - cfi_restore(%esi) - popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - ret - - cfi_restore_state - -81: movl $(FUTEX_CMP_REQUEUE_PI|FUTEX_PRIVATE_FLAG), %ecx - movl $SYS_futex, %eax - movl $0x7fffffff, %esi - movl $1, %edx - /* Get the address of the futex involved. */ -# if MUTEX_FUTEX != 0 - addl $MUTEX_FUTEX, %edi -# endif - int $0x80 - - /* For any kind of error, which mainly is EAGAIN, we try again - with WAKE. The general test also covers running on old - kernels. */ - cmpl $0xfffff001, %eax - jb 6b - jmp 9f - - /* Initial locking failed. */ -1: -#if cond_lock == 0 - movl %ebx, %edx -#else - leal cond_lock(%ebx), %edx -#endif -#if (LLL_SHARED-LLL_PRIVATE) > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex(%ebx) - setne %cl - subl $1, %ecx - andl $(LLL_SHARED-LLL_PRIVATE), %ecx -#if LLL_PRIVATE != 0 - addl $LLL_PRIVATE, %ecx -#endif - call __lll_lock_wait - jmp 2b - - .align 16 - /* Unlock. */ -4: LOCK - subl $1, cond_lock-cond_futex(%ebx) - je 6b - - /* Unlock in loop requires wakeup. */ -5: leal cond_lock-cond_futex(%ebx), %eax -#if (LLL_SHARED-LLL_PRIVATE) > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex-cond_futex(%ebx) - setne %cl - subl $1, %ecx - andl $(LLL_SHARED-LLL_PRIVATE), %ecx -#if LLL_PRIVATE != 0 - addl $LLL_PRIVATE, %ecx -#endif - call __lll_unlock_wake - jmp 6b - - /* Unlock in loop requires wakeup. */ -7: leal cond_lock-cond_futex(%ebx), %eax -#if (LLL_SHARED-LLL_PRIVATE) > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex-cond_futex(%ebx) - setne %cl - subl $1, %ecx - andl $(LLL_SHARED-LLL_PRIVATE), %ecx -#if LLL_PRIVATE != 0 - addl $LLL_PRIVATE, %ecx -#endif - call __lll_unlock_wake - jmp 8b - -9: /* The futex requeue functionality is not available. */ - movl $0x7fffffff, %edx -#if FUTEX_PRIVATE_FLAG > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex-cond_futex(%ebx) - sete %cl - subl $1, %ecx -#ifdef __ASSUME_PRIVATE_FUTEX - andl $FUTEX_PRIVATE_FLAG, %ecx -#else - andl %gs:PRIVATE_FUTEX, %ecx -#endif - addl $FUTEX_WAKE, %ecx - movl $SYS_futex, %eax - ENTER_KERNEL - jmp 6b - cfi_endproc - .size __pthread_cond_broadcast, .-__pthread_cond_broadcast -weak_alias(__pthread_cond_broadcast, pthread_cond_broadcast) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S deleted file mode 100644 index d831a6bf5..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S +++ /dev/null @@ -1,215 +0,0 @@ -/* Copyright (C) 2002,2003,2004,2005,2007,2009 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include -#include -#include -#include -#include -#include - - - .text - - /* int pthread_cond_signal (pthread_cond_t *cond) */ - .globl __pthread_cond_signal - .type __pthread_cond_signal, @function - .protected __pthread_cond_signal - .align 16 -__pthread_cond_signal: - - cfi_startproc - pushl %ebx - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%ebx, 0) - pushl %edi - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%edi, 0) - cfi_remember_state - - movl 12(%esp), %edi - - /* Get internal lock. */ - movl $1, %edx - xorl %eax, %eax - LOCK -#if cond_lock == 0 - cmpxchgl %edx, (%edi) -#else - cmpxchgl %edx, cond_lock(%edi) -#endif - jnz 1f - -2: leal cond_futex(%edi), %ebx - movl total_seq+4(%edi), %eax - movl total_seq(%edi), %ecx - cmpl wakeup_seq+4(%edi), %eax -#if cond_lock != 0 - /* Must use leal to preserve the flags. */ - leal cond_lock(%edi), %edi -#endif - ja 3f - jb 4f - cmpl wakeup_seq-cond_futex(%ebx), %ecx - jbe 4f - - /* Bump the wakeup number. */ -3: addl $1, wakeup_seq-cond_futex(%ebx) - adcl $0, wakeup_seq-cond_futex+4(%ebx) - addl $1, (%ebx) - - /* Wake up one thread. */ - pushl %esi - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%esi, 0) - pushl %ebp - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%ebp, 0) - -#if FUTEX_PRIVATE_FLAG > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex-cond_futex(%ebx) - sete %cl - je 8f - - movl dep_mutex-cond_futex(%ebx), %edx - /* Requeue to a non-robust PI mutex if the PI bit is set and - the robust bit is not set. */ - movl MUTEX_KIND(%edx), %eax - andl $(ROBUST_BIT|PI_BIT), %eax - cmpl $PI_BIT, %eax - je 9f - -8: subl $1, %ecx -#ifdef __ASSUME_PRIVATE_FUTEX - andl $FUTEX_PRIVATE_FLAG, %ecx -#else - andl %gs:PRIVATE_FUTEX, %ecx -#endif - addl $FUTEX_WAKE_OP, %ecx - movl $SYS_futex, %eax - movl $1, %edx - movl $1, %esi - movl $FUTEX_OP_CLEAR_WAKE_IF_GT_ONE, %ebp - /* FIXME: Until Ingo fixes 4G/4G vDSO, 6 arg syscalls are broken for - sysenter. - ENTER_KERNEL */ - int $0x80 - popl %ebp - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebp) - popl %esi - cfi_adjust_cfa_offset(-4) - cfi_restore(%esi) - - /* For any kind of error, we try again with WAKE. - The general test also covers running on old kernels. */ - cmpl $-4095, %eax - jae 7f - -6: xorl %eax, %eax - popl %edi - cfi_adjust_cfa_offset(-4) - cfi_restore(%edi) - popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - ret - - cfi_restore_state - -9: movl $(FUTEX_CMP_REQUEUE_PI|FUTEX_PRIVATE_FLAG), %ecx - movl $SYS_futex, %eax - movl $1, %edx - xorl %esi, %esi - movl dep_mutex-cond_futex(%ebx), %edi - movl (%ebx), %ebp - /* FIXME: Until Ingo fixes 4G/4G vDSO, 6 arg syscalls are broken for - sysenter. - ENTER_KERNEL */ - int $0x80 - popl %ebp - popl %esi - - leal -cond_futex(%ebx), %edi - - /* For any kind of error, we try again with WAKE. - The general test also covers running on old kernels. */ - cmpl $-4095, %eax - jb 4f - -7: -#ifdef __ASSUME_PRIVATE_FUTEX - andl $FUTEX_PRIVATE_FLAG, %ecx -#else - andl %gs:PRIVATE_FUTEX, %ecx -#endif - orl $FUTEX_WAKE, %ecx - - xorl $(FUTEX_WAKE ^ FUTEX_WAKE_OP), %ecx - movl $SYS_futex, %eax - /* %edx should be 1 already from $FUTEX_WAKE_OP syscall. - movl $1, %edx */ - ENTER_KERNEL - - /* Unlock. Note that at this point %edi always points to - cond_lock. */ -4: LOCK - subl $1, (%edi) - je 6b - - /* Unlock in loop requires wakeup. */ -5: movl %edi, %eax -#if (LLL_SHARED-LLL_PRIVATE) > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex-cond_futex(%ebx) - setne %cl - subl $1, %ecx - andl $(LLL_SHARED-LLL_PRIVATE), %ecx -#if LLL_PRIVATE != 0 - addl $LLL_PRIVATE, %ecx -#endif - call __lll_unlock_wake - jmp 6b - - /* Initial locking failed. */ -1: -#if cond_lock == 0 - movl %edi, %edx -#else - leal cond_lock(%edi), %edx -#endif -#if (LLL_SHARED-LLL_PRIVATE) > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex(%edi) - setne %cl - subl $1, %ecx - andl $(LLL_SHARED-LLL_PRIVATE), %ecx -#if LLL_PRIVATE != 0 - addl $LLL_PRIVATE, %ecx -#endif - call __lll_lock_wait - jmp 2b - - cfi_endproc - .size __pthread_cond_signal, .-__pthread_cond_signal -weak_alias(__pthread_cond_signal, pthread_cond_signal) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S deleted file mode 100644 index fd388f993..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S +++ /dev/null @@ -1,698 +0,0 @@ -/* Copyright (C) 2002-2004,2006-2007,2009,2010 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include -#include -#include -#include -#include -#include - - - .text - -/* int pthread_cond_timedwait (pthread_cond_t *cond, pthread_mutex_t *mutex, - const struct timespec *abstime) */ - .globl __pthread_cond_timedwait - .type __pthread_cond_timedwait, @function - .protected __pthread_cond_timedwait - .align 16 -__pthread_cond_timedwait: -.LSTARTCODE: - cfi_startproc -#ifdef SHARED - cfi_personality(DW_EH_PE_pcrel | DW_EH_PE_sdata4 | DW_EH_PE_indirect, - DW.ref.__gcc_personality_v0) - cfi_lsda(DW_EH_PE_pcrel | DW_EH_PE_sdata4, .LexceptSTART) -#else - cfi_personality(DW_EH_PE_udata4, __gcc_personality_v0) - cfi_lsda(DW_EH_PE_udata4, .LexceptSTART) -#endif - - pushl %ebp - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%ebp, 0) - pushl %edi - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%edi, 0) - pushl %esi - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%esi, 0) - pushl %ebx - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%ebx, 0) - - movl 20(%esp), %ebx - movl 28(%esp), %ebp - - cmpl $1000000000, 4(%ebp) - movl $EINVAL, %eax - jae 18f - - /* Get internal lock. */ - movl $1, %edx - xorl %eax, %eax - LOCK -#if cond_lock == 0 - cmpxchgl %edx, (%ebx) -#else - cmpxchgl %edx, cond_lock(%ebx) -#endif - jnz 1f - - /* Store the reference to the mutex. If there is already a - different value in there this is a bad user bug. */ -2: cmpl $-1, dep_mutex(%ebx) - movl 24(%esp), %eax - je 17f - movl %eax, dep_mutex(%ebx) - - /* Unlock the mutex. */ -17: xorl %edx, %edx - call __pthread_mutex_unlock_usercnt - - testl %eax, %eax - jne 16f - - addl $1, total_seq(%ebx) - adcl $0, total_seq+4(%ebx) - addl $1, cond_futex(%ebx) - addl $(1 << nwaiters_shift), cond_nwaiters(%ebx) - -#define FRAME_SIZE 32 - subl $FRAME_SIZE, %esp - cfi_adjust_cfa_offset(FRAME_SIZE) - cfi_remember_state - - /* Get and store current wakeup_seq value. */ - movl wakeup_seq(%ebx), %edi - movl wakeup_seq+4(%ebx), %edx - movl broadcast_seq(%ebx), %eax - movl %edi, 12(%esp) - movl %edx, 16(%esp) - movl %eax, 20(%esp) - - /* Reset the pi-requeued flag. */ -8: movl $0, 24(%esp) - /* Get the current time. */ - movl %ebx, %edx -#ifdef __NR_clock_gettime - /* Get the clock number. */ - movl cond_nwaiters(%ebx), %ebx - andl $((1 << nwaiters_shift) - 1), %ebx - /* Only clocks 0 and 1 are allowed so far. Both are handled in the - kernel. */ - leal 4(%esp), %ecx - movl $__NR_clock_gettime, %eax - ENTER_KERNEL -# ifndef __ASSUME_POSIX_TIMERS - cmpl $-ENOSYS, %eax - je 19f -# endif - movl %edx, %ebx - - /* Compute relative timeout. */ - movl (%ebp), %ecx - movl 4(%ebp), %edx - subl 4(%esp), %ecx - subl 8(%esp), %edx -#else - /* Get the current time. */ - leal 4(%esp), %ebx - xorl %ecx, %ecx - movl $__NR_gettimeofday, %eax - ENTER_KERNEL - movl %edx, %ebx - - /* Compute relative timeout. */ - movl 8(%esp), %eax - movl $1000, %edx - mul %edx /* Milli seconds to nano seconds. */ - movl (%ebp), %ecx - movl 4(%ebp), %edx - subl 4(%esp), %ecx - subl %eax, %edx -#endif - jns 12f - addl $1000000000, %edx - subl $1, %ecx -12: testl %ecx, %ecx - movl $-ETIMEDOUT, %esi - js 6f - - /* Store relative timeout. */ -21: movl %ecx, 4(%esp) - movl %edx, 8(%esp) - - movl cond_futex(%ebx), %edi - movl %edi, 28(%esp) - - /* Unlock. */ - LOCK -#if cond_lock == 0 - subl $1, (%ebx) -#else - subl $1, cond_lock(%ebx) -#endif - jne 3f - -.LcleanupSTART: -4: call __pthread_enable_asynccancel - movl %eax, (%esp) - -#if FUTEX_PRIVATE_FLAG > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex(%ebx) - sete %cl - je 40f - - movl dep_mutex(%ebx), %edi - /* Requeue to a non-robust PI mutex if the PI bit is set and - the robust bit is not set. */ - movl MUTEX_KIND(%edi), %eax - andl $(ROBUST_BIT|PI_BIT), %eax - cmpl $PI_BIT, %eax - jne 40f - - movl $(FUTEX_WAIT_REQUEUE_PI|FUTEX_PRIVATE_FLAG), %ecx - /* The following only works like this because we only support - two clocks, represented using a single bit. */ - testl $1, cond_nwaiters(%ebx) - /* XXX Need to implement using sete instead of a jump. */ - jne 42f - orl $FUTEX_CLOCK_REALTIME, %ecx - - /* Requeue-PI uses absolute timeout */ -42: leal (%ebp), %esi - movl 28(%esp), %edx - addl $cond_futex, %ebx - movl $SYS_futex, %eax - ENTER_KERNEL - subl $cond_futex, %ebx - movl %eax, %esi - /* Set the pi-requeued flag only if the kernel has returned 0. The - kernel does not hold the mutex on ETIMEDOUT or any other error. */ - cmpl $0, %eax - sete 24(%esp) - je 41f - - /* Normal and PI futexes dont mix. Use normal futex functions only - if the kernel does not support the PI futex functions. */ - cmpl $-ENOSYS, %eax - jne 41f - xorl %ecx, %ecx - -40: subl $1, %ecx -#ifdef __ASSUME_PRIVATE_FUTEX - andl $FUTEX_PRIVATE_FLAG, %ecx -#else - andl %gs:PRIVATE_FUTEX, %ecx -#endif -#if FUTEX_WAIT != 0 - addl $FUTEX_WAIT, %ecx -#endif - leal 4(%esp), %esi - movl 28(%esp), %edx - addl $cond_futex, %ebx -.Ladd_cond_futex: - movl $SYS_futex, %eax - ENTER_KERNEL - subl $cond_futex, %ebx -.Lsub_cond_futex: - movl %eax, %esi - -41: movl (%esp), %eax - call __pthread_disable_asynccancel -.LcleanupEND: - - /* Lock. */ - movl $1, %edx - xorl %eax, %eax - LOCK -#if cond_lock == 0 - cmpxchgl %edx, (%ebx) -#else - cmpxchgl %edx, cond_lock(%ebx) -#endif - jnz 5f - -6: movl broadcast_seq(%ebx), %eax - cmpl 20(%esp), %eax - jne 23f - - movl woken_seq(%ebx), %eax - movl woken_seq+4(%ebx), %ecx - - movl wakeup_seq(%ebx), %edi - movl wakeup_seq+4(%ebx), %edx - - cmpl 16(%esp), %edx - jne 7f - cmpl 12(%esp), %edi - je 15f - -7: cmpl %ecx, %edx - jne 9f - cmp %eax, %edi - jne 9f - -15: cmpl $-ETIMEDOUT, %esi - jne 8b - - addl $1, wakeup_seq(%ebx) - adcl $0, wakeup_seq+4(%ebx) - addl $1, cond_futex(%ebx) - movl $ETIMEDOUT, %esi - jmp 14f - -23: xorl %esi, %esi - jmp 24f - -9: xorl %esi, %esi -14: addl $1, woken_seq(%ebx) - adcl $0, woken_seq+4(%ebx) - -24: subl $(1 << nwaiters_shift), cond_nwaiters(%ebx) - - /* Wake up a thread which wants to destroy the condvar object. */ - movl total_seq(%ebx), %eax - andl total_seq+4(%ebx), %eax - cmpl $0xffffffff, %eax - jne 25f - movl cond_nwaiters(%ebx), %eax - andl $~((1 << nwaiters_shift) - 1), %eax - jne 25f - - addl $cond_nwaiters, %ebx - movl $SYS_futex, %eax -#if FUTEX_PRIVATE_FLAG > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex-cond_nwaiters(%ebx) - sete %cl - subl $1, %ecx -#ifdef __ASSUME_PRIVATE_FUTEX - andl $FUTEX_PRIVATE_FLAG, %ecx -#else - andl %gs:PRIVATE_FUTEX, %ecx -#endif - addl $FUTEX_WAKE, %ecx - movl $1, %edx - ENTER_KERNEL - subl $cond_nwaiters, %ebx - -25: LOCK -#if cond_lock == 0 - subl $1, (%ebx) -#else - subl $1, cond_lock(%ebx) -#endif - jne 10f - -11: movl 24+FRAME_SIZE(%esp), %eax - /* With requeue_pi, the mutex lock is held in the kernel. */ - movl 24(%esp), %ecx - testl %ecx, %ecx - jnz 27f - - call __pthread_mutex_cond_lock -26: addl $FRAME_SIZE, %esp - cfi_adjust_cfa_offset(-FRAME_SIZE); - - /* We return the result of the mutex_lock operation if it failed. */ - testl %eax, %eax -#ifdef HAVE_CMOV - cmovel %esi, %eax -#else - jne 22f - movl %esi, %eax -22: -#endif - -18: popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - popl %esi - cfi_adjust_cfa_offset(-4) - cfi_restore(%esi) - popl %edi - cfi_adjust_cfa_offset(-4) - cfi_restore(%edi) - popl %ebp - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebp) - - ret - - cfi_restore_state - -27: call __pthread_mutex_cond_lock_adjust - xorl %eax, %eax - jmp 26b - - cfi_adjust_cfa_offset(-FRAME_SIZE); - /* Initial locking failed. */ -1: -#if cond_lock == 0 - movl %ebx, %edx -#else - leal cond_lock(%ebx), %edx -#endif -#if (LLL_SHARED-LLL_PRIVATE) > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex(%ebx) - setne %cl - subl $1, %ecx - andl $(LLL_SHARED-LLL_PRIVATE), %ecx -#if LLL_PRIVATE != 0 - addl $LLL_PRIVATE, %ecx -#endif - call __lll_lock_wait - jmp 2b - - /* The initial unlocking of the mutex failed. */ -16: - LOCK -#if cond_lock == 0 - subl $1, (%ebx) -#else - subl $1, cond_lock(%ebx) -#endif - jne 18b - - movl %eax, %esi -#if cond_lock == 0 - movl %ebx, %eax -#else - leal cond_lock(%ebx), %eax -#endif -#if (LLL_SHARED-LLL_PRIVATE) > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex(%ebx) - setne %cl - subl $1, %ecx - andl $(LLL_SHARED-LLL_PRIVATE), %ecx -#if LLL_PRIVATE != 0 - addl $LLL_PRIVATE, %ecx -#endif - call __lll_unlock_wake - - movl %esi, %eax - jmp 18b - - cfi_adjust_cfa_offset(FRAME_SIZE) - - /* Unlock in loop requires wakeup. */ -3: -#if cond_lock == 0 - movl %ebx, %eax -#else - leal cond_lock(%ebx), %eax -#endif -#if (LLL_SHARED-LLL_PRIVATE) > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex(%ebx) - setne %cl - subl $1, %ecx - andl $(LLL_SHARED-LLL_PRIVATE), %ecx -#if LLL_PRIVATE != 0 - addl $LLL_PRIVATE, %ecx -#endif - call __lll_unlock_wake - jmp 4b - - /* Locking in loop failed. */ -5: -#if cond_lock == 0 - movl %ebx, %edx -#else - leal cond_lock(%ebx), %edx -#endif -#if (LLL_SHARED-LLL_PRIVATE) > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex(%ebx) - setne %cl - subl $1, %ecx - andl $(LLL_SHARED-LLL_PRIVATE), %ecx -#if LLL_PRIVATE != 0 - addl $LLL_PRIVATE, %ecx -#endif - call __lll_lock_wait - jmp 6b - - /* Unlock after loop requires wakeup. */ -10: -#if cond_lock == 0 - movl %ebx, %eax -#else - leal cond_lock(%ebx), %eax -#endif -#if (LLL_SHARED-LLL_PRIVATE) > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex(%ebx) - setne %cl - subl $1, %ecx - andl $(LLL_SHARED-LLL_PRIVATE), %ecx -#if LLL_PRIVATE != 0 - addl $LLL_PRIVATE, %ecx -#endif - call __lll_unlock_wake - jmp 11b - -#if defined __NR_clock_gettime && !defined __ASSUME_POSIX_TIMERS - /* clock_gettime not available. */ -19: leal 4(%esp), %ebx - xorl %ecx, %ecx - movl $__NR_gettimeofday, %eax - ENTER_KERNEL - movl %edx, %ebx - - /* Compute relative timeout. */ - movl 8(%esp), %eax - movl $1000, %edx - mul %edx /* Milli seconds to nano seconds. */ - movl (%ebp), %ecx - movl 4(%ebp), %edx - subl 4(%esp), %ecx - subl %eax, %edx - jns 20f - addl $1000000000, %edx - subl $1, %ecx -20: testl %ecx, %ecx - movl $-ETIMEDOUT, %esi - js 6b - jmp 21b -#endif - .size __pthread_cond_timedwait, .-__pthread_cond_timedwait -weak_alias(__pthread_cond_timedwait, pthread_cond_timedwait) - - - .type __condvar_tw_cleanup2, @function -__condvar_tw_cleanup2: - subl $cond_futex, %ebx - .size __condvar_tw_cleanup2, .-__condvar_tw_cleanup2 - .type __condvar_tw_cleanup, @function -__condvar_tw_cleanup: - movl %eax, %esi - - /* Get internal lock. */ - movl $1, %edx - xorl %eax, %eax - LOCK -#if cond_lock == 0 - cmpxchgl %edx, (%ebx) -#else - cmpxchgl %edx, cond_lock(%ebx) -#endif - jz 1f - -#if cond_lock == 0 - movl %ebx, %edx -#else - leal cond_lock(%ebx), %edx -#endif -#if (LLL_SHARED-LLL_PRIVATE) > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex(%ebx) - setne %cl - subl $1, %ecx - andl $(LLL_SHARED-LLL_PRIVATE), %ecx -#if LLL_PRIVATE != 0 - addl $LLL_PRIVATE, %ecx -#endif - call __lll_lock_wait - -1: movl broadcast_seq(%ebx), %eax - cmpl 20(%esp), %eax - jne 3f - - /* 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) - -7: addl $1, woken_seq(%ebx) - adcl $0, woken_seq+4(%ebx) - -3: subl $(1 << nwaiters_shift), cond_nwaiters(%ebx) - - /* Wake up a thread which wants to destroy the condvar object. */ - xorl %edi, %edi - movl total_seq(%ebx), %eax - andl total_seq+4(%ebx), %eax - cmpl $0xffffffff, %eax - jne 4f - movl cond_nwaiters(%ebx), %eax - andl $~((1 << nwaiters_shift) - 1), %eax - jne 4f - - addl $cond_nwaiters, %ebx - movl $SYS_futex, %eax -#if FUTEX_PRIVATE_FLAG > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex-cond_nwaiters(%ebx) - sete %cl - subl $1, %ecx -#ifdef __ASSUME_PRIVATE_FUTEX - andl $FUTEX_PRIVATE_FLAG, %ecx -#else - andl %gs:PRIVATE_FUTEX, %ecx -#endif - addl $FUTEX_WAKE, %ecx - movl $1, %edx - ENTER_KERNEL - subl $cond_nwaiters, %ebx - movl $1, %edi - -4: LOCK -#if cond_lock == 0 - subl $1, (%ebx) -#else - subl $1, cond_lock(%ebx) -#endif - je 2f - -#if cond_lock == 0 - movl %ebx, %eax -#else - leal cond_lock(%ebx), %eax -#endif -#if (LLL_SHARED-LLL_PRIVATE) > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex(%ebx) - setne %cl - subl $1, %ecx - andl $(LLL_SHARED-LLL_PRIVATE), %ecx -#if LLL_PRIVATE != 0 - addl $LLL_PRIVATE, %ecx -#endif - call __lll_unlock_wake - - /* Wake up all waiters to make sure no signal gets lost. */ -2: testl %edi, %edi - jnz 5f - addl $cond_futex, %ebx -#if FUTEX_PRIVATE_FLAG > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex-cond_futex(%ebx) - sete %cl - subl $1, %ecx -#ifdef __ASSUME_PRIVATE_FUTEX - andl $FUTEX_PRIVATE_FLAG, %ecx -#else - andl %gs:PRIVATE_FUTEX, %ecx -#endif - addl $FUTEX_WAKE, %ecx - movl $SYS_futex, %eax - movl $0x7fffffff, %edx - ENTER_KERNEL - -5: movl 24+FRAME_SIZE(%esp), %eax - call __pthread_mutex_cond_lock - - movl %esi, (%esp) -.LcallUR: -#ifdef __PIC__ - call __i686.get_pc_thunk.bx - addl $_GLOBAL_OFFSET_TABLE_, %ebx -#endif - call _Unwind_Resume@PLT - hlt -.LENDCODE: - cfi_endproc - .size __condvar_tw_cleanup, .-__condvar_tw_cleanup - - - .section .gcc_except_table,"a",@progbits -.LexceptSTART: - .byte DW_EH_PE_omit # @LPStart format (omit) - .byte DW_EH_PE_omit # @TType format (omit) - .byte DW_EH_PE_sdata4 # call-site format - # DW_EH_PE_sdata4 - .uleb128 .Lcstend-.Lcstbegin -.Lcstbegin: - .long .LcleanupSTART-.LSTARTCODE - .long .Ladd_cond_futex-.LcleanupSTART - .long __condvar_tw_cleanup-.LSTARTCODE - .uleb128 0 - .long .Ladd_cond_futex-.LSTARTCODE - .long .Lsub_cond_futex-.Ladd_cond_futex - .long __condvar_tw_cleanup2-.LSTARTCODE - .uleb128 0 - .long .Lsub_cond_futex-.LSTARTCODE - .long .LcleanupEND-.Lsub_cond_futex - .long __condvar_tw_cleanup-.LSTARTCODE - .uleb128 0 - .long .LcallUR-.LSTARTCODE - .long .LENDCODE-.LcallUR - .long 0 - .uleb128 0 -.Lcstend: - - -#ifdef SHARED - .hidden DW.ref.__gcc_personality_v0 - .weak DW.ref.__gcc_personality_v0 - .section .gnu.linkonce.d.DW.ref.__gcc_personality_v0,"aw",@progbits - .align 4 - .type DW.ref.__gcc_personality_v0, @object - .size DW.ref.__gcc_personality_v0, 4 -DW.ref.__gcc_personality_v0: - .long __gcc_personality_v0 -#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S deleted file mode 100644 index 90f19800d..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S +++ /dev/null @@ -1,594 +0,0 @@ -/* Copyright (C) 2002-2004,2006-2007,2009,2010 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include -#include -#include -#include -#include -#include - - - .text - -/* int pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex) */ - .globl __pthread_cond_wait - .type __pthread_cond_wait, @function - .protected __pthread_cond_wait - .align 16 -__pthread_cond_wait: -.LSTARTCODE: - cfi_startproc -#ifdef SHARED - cfi_personality(DW_EH_PE_pcrel | DW_EH_PE_sdata4 | DW_EH_PE_indirect, - DW.ref.__gcc_personality_v0) - cfi_lsda(DW_EH_PE_pcrel | DW_EH_PE_sdata4, .LexceptSTART) -#else - cfi_personality(DW_EH_PE_udata4, __gcc_personality_v0) - cfi_lsda(DW_EH_PE_udata4, .LexceptSTART) -#endif - - pushl %ebp - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%ebp, 0) - pushl %edi - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%edi, 0) - pushl %esi - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%esi, 0) - pushl %ebx - cfi_adjust_cfa_offset(4) - cfi_rel_offset(%ebx, 0) - - xorl %esi, %esi - movl 20(%esp), %ebx - - /* Get internal lock. */ - movl $1, %edx - xorl %eax, %eax - LOCK -#if cond_lock == 0 - cmpxchgl %edx, (%ebx) -#else - cmpxchgl %edx, cond_lock(%ebx) -#endif - jnz 1f - - /* Store the reference to the mutex. If there is already a - different value in there this is a bad user bug. */ -2: cmpl $-1, dep_mutex(%ebx) - movl 24(%esp), %eax - je 15f - movl %eax, dep_mutex(%ebx) - - /* Unlock the mutex. */ -15: xorl %edx, %edx - call __pthread_mutex_unlock_usercnt - - testl %eax, %eax - jne 12f - - addl $1, total_seq(%ebx) - adcl $0, total_seq+4(%ebx) - addl $1, cond_futex(%ebx) - addl $(1 << nwaiters_shift), cond_nwaiters(%ebx) - -#define FRAME_SIZE 20 - subl $FRAME_SIZE, %esp - cfi_adjust_cfa_offset(FRAME_SIZE) - cfi_remember_state - - /* Get and store current wakeup_seq value. */ - movl wakeup_seq(%ebx), %edi - movl wakeup_seq+4(%ebx), %edx - movl broadcast_seq(%ebx), %eax - movl %edi, 4(%esp) - movl %edx, 8(%esp) - movl %eax, 12(%esp) - - /* Reset the pi-requeued flag. */ -8: movl $0, 16(%esp) - movl cond_futex(%ebx), %ebp - - /* Unlock. */ - LOCK -#if cond_lock == 0 - subl $1, (%ebx) -#else - subl $1, cond_lock(%ebx) -#endif - jne 3f - -.LcleanupSTART: -4: call __pthread_enable_asynccancel - movl %eax, (%esp) - - xorl %ecx, %ecx - cmpl $-1, dep_mutex(%ebx) - sete %cl - je 18f - - movl dep_mutex(%ebx), %edi - /* Requeue to a non-robust PI mutex if the PI bit is set and - the robust bit is not set. */ - movl MUTEX_KIND(%edi), %eax - andl $(ROBUST_BIT|PI_BIT), %eax - cmpl $PI_BIT, %eax - jne 18f - - movl $(FUTEX_WAIT_REQUEUE_PI|FUTEX_PRIVATE_FLAG), %ecx - movl %ebp, %edx - xorl %esi, %esi - addl $cond_futex, %ebx - movl $SYS_futex, %eax - ENTER_KERNEL - subl $cond_futex, %ebx - /* Set the pi-requeued flag only if the kernel has returned 0. The - kernel does not hold the mutex on error. */ - cmpl $0, %eax - sete 16(%esp) - je 19f - - /* Normal and PI futexes dont mix. Use normal futex functions only - if the kernel does not support the PI futex functions. */ - cmpl $-ENOSYS, %eax - jne 19f - xorl %ecx, %ecx - -18: subl $1, %ecx -#ifdef __ASSUME_PRIVATE_FUTEX - andl $FUTEX_PRIVATE_FLAG, %ecx -#else - andl %gs:PRIVATE_FUTEX, %ecx -#endif -#if FUTEX_WAIT != 0 - addl $FUTEX_WAIT, %ecx -#endif - movl %ebp, %edx - addl $cond_futex, %ebx -.Ladd_cond_futex: - movl $SYS_futex, %eax - ENTER_KERNEL - subl $cond_futex, %ebx -.Lsub_cond_futex: - -19: movl (%esp), %eax - call __pthread_disable_asynccancel -.LcleanupEND: - - /* Lock. */ - movl $1, %edx - xorl %eax, %eax - LOCK -#if cond_lock == 0 - cmpxchgl %edx, (%ebx) -#else - cmpxchgl %edx, cond_lock(%ebx) -#endif - jnz 5f - -6: movl broadcast_seq(%ebx), %eax - cmpl 12(%esp), %eax - jne 16f - - movl woken_seq(%ebx), %eax - movl woken_seq+4(%ebx), %ecx - - movl wakeup_seq(%ebx), %edi - movl wakeup_seq+4(%ebx), %edx - - cmpl 8(%esp), %edx - jne 7f - cmpl 4(%esp), %edi - je 8b - -7: cmpl %ecx, %edx - jne 9f - cmp %eax, %edi - je 8b - -9: addl $1, woken_seq(%ebx) - adcl $0, woken_seq+4(%ebx) - - /* Unlock */ -16: subl $(1 << nwaiters_shift), cond_nwaiters(%ebx) - - /* Wake up a thread which wants to destroy the condvar object. */ - movl total_seq(%ebx), %eax - andl total_seq+4(%ebx), %eax - cmpl $0xffffffff, %eax - jne 17f - movl cond_nwaiters(%ebx), %eax - andl $~((1 << nwaiters_shift) - 1), %eax - jne 17f - - addl $cond_nwaiters, %ebx - movl $SYS_futex, %eax -#if FUTEX_PRIVATE_FLAG > 255 - xorl %ecx, %ecx -#endif - cmpl $-1, dep_mutex-cond_nwaiters(%ebx) - sete %cl - subl $1, %ecx -#ifdef __ASSUME_PRIVATE_FUTEX - andl $FUTEX_PRIVATE_FLAG, %ecx -#else - andl %gs:PRIVATE_FUTEX, %ecx -#endif - addl $FUTEX_WAKE, %ecx - movl $1, %edx - ENTER_KERNEL - subl $cond_nwaiters, %ebx - -17: LOCK -#if cond_lock == 0 - subl $1, (%ebx) -#else - subl $1, cond_lock(%ebx) -#endif - jne 10f - - /* With requeue_pi, the mutex lock is held in the kernel. */ -11: movl 24+FRAME_SIZE(%esp), %eax - movl 16(%esp), %ecx - testl %ecx, %ecx - jnz 21f - - call __pthread_mutex_cond_lock -20: addl $FRAME_SIZE, %esp - cfi_adjust_cfa_offset(-FRAME_SIZE); - -14: popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - popl %esi - cfi_adjust_cfa_offset(-4) - cfi_restore(%esi) - popl %edi - cfi_adjust_cfa_offset(-4) - cfi_restore(%edi) - popl %ebp - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebp) - - /* We return