// -*- Mode: C++; tab-width:
4; indent-tabs-mode: nil; c-basic-offset:
2 -*-
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v.
2.
0. If a copy of the MPL was not distributed with this
//
file, You can obtain one at
http://mozilla.org/MPL/2.
0/.
// PRInt32 _PR_x86_64_AtomicIncrement(PRInt32 *val)
//
// Atomically increment the integer pointed to by
'val' and return
// the result of the increment.
//
.text
.globl _PR_x86_64_AtomicIncrement
.type _PR_x86_64_AtomicIncrement, @function
.
align 4
_PR_x86_64_AtomicIncrement:
movl $
1, %eax
lock
xaddl %eax, (%rdi)
incl %eax
ret
.
size _PR_x86_64_AtomicIncrement, .-_PR_x86_64_AtomicIncrement
// PRInt32 _PR_x86_64_AtomicDecrement(PRInt32 *val)
//
// Atomically decrement the integer pointed to by
'val' and return
// the result of the decrement.
//
.text
.globl _PR_x86_64_AtomicDecrement
.type _PR_x86_64_AtomicDecrement, @function
.
align 4
_PR_x86_64_AtomicDecrement:
movl $-
1, %eax
lock
xaddl %eax, (%rdi)
decl %eax
ret
.
size _PR_x86_64_AtomicDecrement, .-_PR_x86_64_AtomicDecrement
// PRInt32 _PR_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval)
//
// Atomically
set the integer pointed to by
'val' to the new
// value
'newval' and return the old value.
//
.text
.globl _PR_x86_64_AtomicSet
.type _PR_x86_64_AtomicSet, @function
.
align 4
_PR_x86_64_AtomicSet:
movl %esi, %eax
xchgl %eax, (%rdi)
ret
.
size _PR_x86_64_AtomicSet, .-_PR_x86_64_AtomicSet
// PRInt32 _PR_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val)
//
// Atomically add
'val' to the integer pointed to by
'ptr'
// and return the result of the addition.
//
.text
.globl _PR_x86_64_AtomicAdd
.type _PR_x86_64_AtomicAdd, @function
.
align 4
_PR_x86_64_AtomicAdd:
movl %esi, %eax
lock
xaddl %eax, (%rdi)
addl %esi, %eax
ret
.
size _PR_x86_64_AtomicAdd, .-_PR_x86_64_AtomicAdd
// Magic indicating no need for an executable stack
.
section .note.GNU-stack,
"", @progbits
