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// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
//
// ***** BEGIN LICENSE BLOCK *****
// Version: MPL 1.1/GPL 2.0/LGPL 2.1
//
// The contents of this file are subject to the Mozilla Public License Version
// 1.1 (the "License"); you may not use this file except in compliance with
// the License. You may obtain a copy of the License at
// http://www.mozilla.org/MPL/
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
// for the specific language governing rights and limitations under the
// License.
//
// The Original Code is the Netscape Portable Runtime (NSPR).
//
// The Initial Developer of the Original Code is
// Netscape Communications Corporation.
// Portions created by the Initial Developer are Copyright (C) 2004
// the Initial Developer. All Rights Reserved.
//
// Contributor(s):
//
// Alternatively, the contents of this file may be used under the terms of
// either the GNU General Public License Version 2 or later (the "GPL"), or
// the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
// in which case the provisions of the GPL or the LGPL are applicable instead
// of those above. If you wish to allow use of your version of this file only
// under the terms of either the GPL or the LGPL, and not to allow others to
// use your version of this file under the terms of the MPL, indicate your
// decision by deleting the provisions above and replace them with the notice
// and other provisions required by the GPL or the LGPL. If you do not delete
// the provisions above, a recipient may use your version of this file under
// the terms of any one of the MPL, the GPL or the LGPL.
//
// ***** END LICENSE BLOCK *****
// 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 ; .previous
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