diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S b/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S deleted file mode 100644 index bc1001ce9c..0000000000 --- a/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S +++ /dev/null @@ -1,243 +0,0 @@ -/* Copyright (C) 2002-2014 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 <lowlevellock.h> -#include <lowlevelrwlock.h> -#include <pthread-errnos.h> -#include <kernel-features.h> - - - .text - - .globl pthread_rwlock_timedrdlock - .type pthread_rwlock_timedrdlock,@function - .align 16 -pthread_rwlock_timedrdlock: - cfi_startproc - pushl %esi - cfi_adjust_cfa_offset(4) - pushl %edi - cfi_adjust_cfa_offset(4) - pushl %ebx - cfi_adjust_cfa_offset(4) - pushl %ebp - cfi_adjust_cfa_offset(4) - cfi_offset(%esi, -8) - cfi_offset(%edi, -12) - cfi_offset(%ebx, -16) - cfi_offset(%ebp, -20) - subl $8, %esp - cfi_adjust_cfa_offset(8) - - movl 28(%esp), %ebp - movl 32(%esp), %edi - - /* Get the lock. */ - movl $1, %edx - xorl %eax, %eax - LOCK -#if MUTEX == 0 - cmpxchgl %edx, (%ebp) -#else - cmpxchgl %edx, MUTEX(%ebp) -#endif - jnz 1f - -2: movl WRITER(%ebp), %eax - testl %eax, %eax - jne 14f - cmpl $0, WRITERS_QUEUED(%ebp) - je 5f - cmpb $0, FLAGS(%ebp) - je 5f - - /* Check the value of the timeout parameter. */ -3: cmpl $1000000000, 4(%edi) - jae 19f - - addl $1, READERS_QUEUED(%ebp) - je 4f - - movl READERS_WAKEUP(%ebp), %esi - - LOCK -#if MUTEX == 0 - subl $1, (%ebp) -#else - subl $1, MUTEX(%ebp) -#endif - jne 10f - - /* Get current time. */ -11: 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 15f - addl $1000000000, %edx - subl $1, %ecx -15: testl %ecx, %ecx - js 16f /* Time is already up. */ - - /* Futex call. */ - movl %ecx, (%esp) /* Store relative timeout. */ - movl %edx, 4(%esp) - - movl %esi, %edx -#ifdef __ASSUME_PRIVATE_FUTEX - movzbl PSHARED(%ebp), %ecx - xorl $FUTEX_PRIVATE_FLAG|FUTEX_WAIT, %ecx -#else - movzbl PSHARED(%ebp), %ecx -# if FUTEX_WAIT != 0 - orl $FUTEX_WAIT, %ecx -# endif - xorl %gs:PRIVATE_FUTEX, %ecx -#endif - movl %esp, %esi - leal READERS_WAKEUP(%ebp), %ebx - movl $SYS_futex, %eax - ENTER_KERNEL - movl %eax, %esi -17: - - /* Reget the lock. */ - movl $1, %edx - xorl %eax, %eax - LOCK -#if MUTEX == 0 - cmpxchgl %edx, (%ebp) -#else - cmpxchgl %edx, MUTEX(%ebp) -#endif - jnz 12f - -13: subl $1, READERS_QUEUED(%ebp) - cmpl $-ETIMEDOUT, %esi - jne 2b - -18: movl $ETIMEDOUT, %edx - jmp 9f - - -5: xorl %edx, %edx - addl $1, NR_READERS(%ebp) - je 8f -9: LOCK -#if MUTEX == 0 - subl $1, (%ebp) -#else - subl $1, MUTEX(%ebp) -#endif - jne 6f - -7: movl %edx, %eax - - addl $8, %esp - cfi_adjust_cfa_offset(-8) - popl %ebp - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebp) - popl %ebx - cfi_adjust_cfa_offset(-4) - cfi_restore(%ebx) - popl %edi - cfi_adjust_cfa_offset(-4) - cfi_restore(%edi) - popl %esi - cfi_adjust_cfa_offset(-4) - cfi_restore(%esi) - ret - - cfi_adjust_cfa_offset(24) - cfi_offset(%esi, -8) - cfi_offset(%edi, -12) - cfi_offset(%ebx, -16) - cfi_offset(%ebp, -20) -1: -#if MUTEX == 0 - movl %ebp, %edx -#else - leal MUTEX(%ebp), %edx -#endif - movzbl PSHARED(%ebp), %ecx - call __lll_lock_wait - jmp 2b - -14: cmpl %gs:TID, %eax - jne 3b - movl $EDEADLK, %edx - jmp 9b - -6: -#if MUTEX == 0 - movl %ebp, %eax -#else - leal MUTEX(%ebp), %eax -#endif - movzbl PSHARED(%ebp), %ecx - call __lll_unlock_wake - jmp 7b - - /* Overflow. */ -8: subl $1, NR_READERS(%ebp) - movl $EAGAIN, %edx - jmp 9b - - /* Overflow. */ -4: subl $1, READERS_QUEUED(%ebp) - movl $EAGAIN, %edx - jmp 9b - -10: -#if MUTEX == 0 - movl %ebp, %eax -#else - leal MUTEX(%ebp), %eax -#endif - movzbl PSHARED(%ebp), %ecx - call __lll_unlock_wake - jmp 11b - -12: -#if MUTEX == 0 - movl %ebp, %edx -#else - leal MUTEX(%ebp), %edx -#endif - movzbl PSHARED(%ebp), %ecx - call __lll_lock_wait - jmp 13b - -16: movl $-ETIMEDOUT, %esi - jmp 17b - -19: movl $EINVAL, %edx - jmp 9b - cfi_endproc - .size pthread_rwlock_timedrdlock,.-pthread_rwlock_timedrdlock |