diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S | 334 |
1 files changed, 0 insertions, 334 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S deleted file mode 100644 index 1e32ec0767..0000000000 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S +++ /dev/null @@ -1,334 +0,0 @@ -/* Copyright (C) 2002, 2003 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#include <shlib-compat.h> - - .text - -#ifndef UP -# define LOCK lock -#else -# define -#endif - -#define SYS_gettimeofday __NR_gettimeofday -#define SYS_futex 240 -#define FUTEX_WAKE 1 - -#define EINTR 4 -#define EAGAIN 11 -#define EWOULDBLOCK EAGAIN -#define EINVAL 22 -#define ETIMEDOUT 110 - - - .globl __new_sem_wait - .type __new_sem_wait,@function - .align 16 -__new_sem_wait: - pushl %ebx - pushl %esi - - movl 12(%esp), %ebx - -3: movl (%ebx), %eax -2: testl %eax, %eax - je,pn 1f - - leal -1(%eax), %edx - LOCK - cmpxchgl %edx, (%ebx) - jne,pn 2b - xorl %eax, %eax - - popl %esi - popl %ebx - ret - -1: xorl %esi, %esi - movl $SYS_futex, %eax - movl %esi, %ecx - movl %esi, %edx - ENTER_KERNEL - - testl %eax, %eax - je 3b - cmpl $-EWOULDBLOCK, %eax - je 3b - negl %eax -#ifdef PIC - call __i686.get_pc_thunk.bx -#else - movl $4f, %ebx -4: -#endif - addl $_GLOBAL_OFFSET_TABLE_, %ebx -#if USE___THREAD - movl %gs:0, %edx - subl errno@gottpoff(%ebx), %edx - movl %eax, (%edx) -#else - movl %eax, %edx - call __errno_location@plt - movl %edx, (%eax) -#endif - orl $-1, %eax - popl %esi - popl %ebx - ret - .size __new_sem_wait,.-__new_sem_wait - .symver __new_sem_wait, sem_wait@@GLIBC_2.1 -#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1) - .global __old_sem_wait -__old_sem_wait = __new_sem_wait - .symver __old_sem_wait, sem_wait@GLIBC_2.0 -#endif - - - .globl __new_sem_trywait - .type __new_sem_trywait,@function - .align 16 -__new_sem_trywait: - movl 4(%esp), %ecx - - movl (%ecx), %eax -2: testl %eax, %eax - jz 1f - - leal -1(%eax), %edx - LOCK - cmpxchgl %edx, (%ecx) - jne,pn 2b - xorl %eax, %eax - ret - -1: -#ifdef PIC - call __i686.get_pc_thunk.cx -#else - movl $3f, %ecx -3: -#endif - addl $_GLOBAL_OFFSET_TABLE_, %ecx -#if USE___THREAD - movl %gs:0, %edx - subl errno@gottpoff(%ecx), %edx - movl $EAGAIN, (%edx) -#else - call __errno_location@plt - movl $EAGAIN, (%eax) -#endif - orl $-1, %eax - ret - .size __new_sem_trywait,.-__new_sem_trywait - .symver __new_sem_trywait, sem_trywait@@GLIBC_2.1 -#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1) - .global __old_sem_trywait -__old_sem_trywait = __new_sem_trywait - .symver __old_sem_trywait, sem_trywait@GLIBC_2.0 -#endif - - - .globl sem_timedwait - .type sem_timedwait,@function - .align 16 -sem_timedwait: - movl 4(%esp), %ecx - - movl (%ecx), %eax -2: testl %eax, %eax - je,pn 1f - - leal -1(%eax), %edx - LOCK - cmpxchgl %edx, (%ecx) - jne,pn 2b - - xorl %eax, %eax - ret - - /* Check whether the timeout value is valid. */ -1: pushl %esi - pushl %edi - pushl %ebx - subl $8, %esp - - movl %esp, %esi - movl 28(%esp), %edi - - /* Check for invalid nanosecond field. */ - cmpl $1000000000, 4(%edi) - movl $EINVAL, %eax - jae 6f - -7: xorl %ecx, %ecx - movl %esp, %ebx - movl %ecx, %edx - movl $SYS_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 - decl %ecx -5: testl %ecx, %ecx - movl $ETIMEDOUT, %eax - js 6f /* Time is already up. */ - - movl %ecx, (%esp) /* Store relative timeout. */ - movl %edx, 4(%esp) - movl 24(%esp), %ebx - xorl %ecx, %ecx - movl $SYS_futex, %eax - xorl %edx, %edx - ENTER_KERNEL - - testl %eax, %eax - je,pt 9f - cmpl $-EWOULDBLOCK, %eax - jne 3f - -9: movl (%ebx), %eax -8: testl %eax, %eax - je 7b - - leal -1(%eax), %ecx - LOCK - cmpxchgl %ecx, (%ebx) - jne,pn 8b - - addl $8, %esp - xorl %eax, %eax - popl %ebx - popl %edi - popl %esi - ret - -3: negl %eax -6: -#ifdef PIC - call __i686.get_pc_thunk.bx -#else - movl $4f, %ebx -4: -#endif - addl $_GLOBAL_OFFSET_TABLE_, %ebx -#if USE___THREAD - movl %gs:0, %edx - subl errno@gottpoff(%ebx), %edx - movl %eax, (%edx) -#else - movl %eax, %edx - call __errno_location@plt - movl %edx, (%eax) -#endif - - addl $8, %esp - orl $-1, %eax - popl %ebx - popl %edi - popl %esi - ret - .size sem_timedwait,.-sem_timedwait - - - .globl __new_sem_post - .type __new_sem_post,@function - .align 16 -__new_sem_post: - pushl %esi - pushl %ebx - - movl 12(%esp), %ebx - movl $1, %edx - LOCK - xaddl %edx, (%ebx) - - xorl %esi, %esi - movl $SYS_futex, %eax - movl $FUTEX_WAKE, %ecx - incl %edx - ENTER_KERNEL - - testl %eax, %eax - js 1f - - xorl %eax, %eax - popl %ebx - popl %esi - ret - -1: -#ifdef PIC - call __i686.get_pc_thunk.bx -#else - movl $4f, %ebx -4: -#endif - addl $_GLOBAL_OFFSET_TABLE_, %ebx -#if USE___THREAD - movl %gs:0, %edx - subl errno@gottpoff(%ebx), %edx - movl $EINVAL, (%edx) -#else - call __errno_location@plt - movl $EAGAIN, (%eax) -#endif - - orl $-1, %eax - popl %ebx - popl %esi - ret - .size __new_sem_post,.-__new_sem_post - .symver __new_sem_post, sem_post@@GLIBC_2.1 -#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1) - .global __old_sem_post -__old_sem_post = __new_sem_post - .symver __old_sem_post, sem_post@GLIBC_2.0 -#endif - - -#ifdef PIC - .section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits - .globl __i686.get_pc_thunk.bx - .hidden __i686.get_pc_thunk.bx - .type __i686.get_pc_thunk.bx,@function -__i686.get_pc_thunk.bx: - movl (%esp), %ebx; - ret - .size __i686.get_pc_thunk.bx,.-__i686.get_pc_thunk.bx - - - .section .gnu.linkonce.t.__i686.get_pc_thunk.cx,"ax",@progbits - .globl __i686.get_pc_thunk.cx - .hidden __i686.get_pc_thunk.cx - .type __i686.get_pc_thunk.cx,@function -__i686.get_pc_thunk.cx: - movl (%esp), %ecx; - ret - .size __i686.get_pc_thunk.cx,.-__i686.get_pc_thunk.cx -#endif |