/*
 * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * Copyright 1996 1995 by Open Software Foundation, Inc. 1997 1996 1995 1994 1993 1992 1991  
 *              All Rights Reserved 
 *  
 * Permission to use, copy, modify, and distribute this software and 
 * its documentation for any purpose and without fee is hereby granted, 
 * provided that the above copyright notice appears in all copies and 
 * that both the copyright notice and this permission notice appear in 
 * supporting documentation. 
 *  
 * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
 * FOR A PARTICULAR PURPOSE. 
 *  
 * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 
 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 
 * 
 */
/*
 * MkLinux
 */

.text

#if defined(__ppc__) || defined(__ppc64__)
#import	<architecture/ppc/asm_help.h>
#import	<architecture/ppc/pseudo_inst.h>

/*	
 * void *_sp(void)
 */

LEAF(__sp)
	mr	r3,r1
	blr

/*
 * void *_adjust_sp(void *sp)
 */
LEAF(__adjust_sp)
	subi	r3,r3,0x100		/* Stack frame padding */
	blr	

#elif defined(__i386__)

#import	<architecture/i386/asm_help.h>
/*	
 * void *_sp(void)
 */

LEAF(__sp,0)
	movl	%esp,%eax
	ret

/*
 * void *_adjust_sp(void *sp)
 */
LEAF(__adjust_sp,0)
	movl	4(%esp),%eax
	subl	$0x100,%eax
	ret

#elif defined(__x86_64__)

#import	<architecture/i386/asm_help.h>
/*	
 * void *_sp(void)
 */

LEAF(__sp,0)
	movq	%rsp,%rax
	ret

/*
 * void *_adjust_sp(void *sp)
 */
LEAF(__adjust_sp,0)
	movq	%rdi,%rax
	subq	$0x100,%rax
	ret

#elif defined(__arm__)

#import	<architecture/arm/asm_help.h>

LEAF(__sp,0)
	mov	r0,sp
	bx	lr

/*
 * void *_adjust_sp(void *sp)
 */
LEAF(__adjust_sp,0)
	sub	r0, r0, #0x100
	bx	lr

#else
#error sp functions not defined for this architecture
#endif