diff options
Diffstat (limited to 'libpthread')
56 files changed, 17 insertions, 5685 deletions
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 <drepper@redhat.com>, 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 - <http://www.gnu.org/licenses/>. */ - -#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 <drepper@redhat.com>, 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 - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <pthread-errnos.h> -#include <bits/kernel-features.h> -#include <lowlevellock.h> -#include <tcb-offsets.h> - - .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 <drepper@redhat.com>, 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 - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <pthread-errnos.h> -#include <lowlevellock.h> -#include <lowlevelrobustlock.h> -#include <bits/kernel-features.h> -#include <tls.h> - - .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 - |