405b8029a6
Change-Id: I2864dea04b3faf2d919165dcaa600af5b16c41c8 Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Raghu Gandham <raghu@mips.com>
142 lines
3.8 KiB
ArmAsm
142 lines
3.8 KiB
ArmAsm
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <asm/unistd.h>
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#define FUTEX_WAIT 0
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#define FUTEX_WAKE 1
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/*
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* __futex_wait(*ftx, val, *timespec)
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* futex_syscall(*ftx, op, val, *timespec, *addr2, val3)
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*/
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.type __futex_wait, @function
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.global __futex_wait
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.align 4
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.ent __futex_wait
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__futex_wait:
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subu $sp,4*6
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sw $0,20($sp) /* val3 */
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sw $0,16($sp) /* addr2 */
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move $a3,$a2 /* timespec */
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move $a2,$a1 /* val */
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li $a1,FUTEX_WAIT /* op */
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# move $a0,$a0 /* ftx */
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li $v0,__NR_futex
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syscall
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.set noreorder
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bnez $a3, 1f /* Check for error */
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neg $v0 /* Negate error number if it's valid */
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move $v0,$0 /* Otherwise return 0 */
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1:
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.set reorder
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addu $sp,4*6
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j $ra
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.end __futex_wait
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/*
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* int __futex_wake(volatile void *ftx, int count)
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* int futex_syscall(*ftx, op, val, *timespec, *addr2, val3)
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*/
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.type __futex_wake, @function
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.globl __futex_wake
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.align 4
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.ent __futex_wake
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__futex_wake:
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subu $sp,4*6
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sw $0,20($sp) /* val3 */
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sw $0,16($sp) /* addr2 */
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move $a3,$0 /* timespec */
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move $a2,$a1 /* val */
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li $a1,FUTEX_WAKE /* op */
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# move $a0,$a0 /* ftx */
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li $v0,__NR_futex
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syscall
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.set noreorder
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bnez $a3, 1f /* Check for error */
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neg $v0 /* Negate error number if it's valid */
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move $v0,$0 /* Otherwise return 0 */
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1:
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.set reorder
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addu $sp,4*6
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j $ra
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.end __futex_wake
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/* __futex_syscall3(*ftx, op, val)
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* futex_syscall(*ftx, op, val, *timespec, *addr2, val3)
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*/
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.type __futex_syscall3, @function
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.global __futex_syscall3
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.align 4
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.ent __futex_syscall3
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__futex_syscall3:
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subu $sp,4*6
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sw $0,20($sp) /* val3 */
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sw $0,16($sp) /* addr2 */
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move $a3,$0 /* timespec */
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# move $a2,$a2 /* val */
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# li $a1,$a1 /* op */
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# move $a0,$a0 /* ftx */
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li $v0,__NR_futex
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syscall
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.set noreorder
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bnez $a3, 1f /* Check for error */
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neg $v0 /* Negate error number if it's valid */
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move $v0,$0 /* Otherwise return 0 */
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1:
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.set reorder
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addu $sp,4*6
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j $ra
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.end __futex_syscall3
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/* __futex_syscall4(*ftx, op, val)
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* futex_syscall(*ftx, op, val, *timespec, *addr2, val3)
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*/
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.type __futex_syscall4, @function
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.global __futex_syscall4
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.align 4
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.ent __futex_syscall4
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__futex_syscall4:
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subu $sp,4*6
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sw $0,20($sp) /* val3 */
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sw $0,16($sp) /* addr2 */
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# move $a3,$a3 /* timespec */
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# move $a2,$a2 /* val */
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# li $a1,$a1 /* op */
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# move $a0,$a0 /* ftx */
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li $v0,__NR_futex
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syscall
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.set noreorder
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bnez $a3, 1f /* Check for error */
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neg $v0 /* Negate error number if it's valid */
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move $v0,$0 /* Otherwise return 0 */
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1:
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.set reorder
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addu $sp,4*6
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j $ra
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.end __futex_syscall4
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