xref: /titanic_50/usr/src/lib/libc/common/sys/mmap.s (revision c242ec1b4cd260e90178d81575297bb3b3648766)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*	Copyright (c) 1988 AT&T	*/
28/*	All Rights Reserved	*/
29
30	.file	"mmap.s"
31
32#include <sys/asm_linkage.h>
33
34#if !defined(_LARGEFILE_SOURCE)
35	ANSI_PRAGMA_WEAK(mmap,function)
36#else
37	ANSI_PRAGMA_WEAK(mmap64,function)
38#endif
39
40#include "SYS.h"
41#include <sys/mman.h>		/* Need _MAP_NEW definition     */
42
43#if !defined(_LARGEFILE_SOURCE)
44
45/*
46 * C library -- mmap
47 * caddr_t mmap(caddr_t addr, size_t len, int prot,
48 *	int flags, int fd, off_t off)
49 */
50
51	ENTRY(mmap)
52#if defined(__sparc)
53	/* this depends upon the _MAP_NEW flag being in the top bits */
54	sethi	%hi(_MAP_NEW), %g1
55	or	%g1, %o3, %o3
56#endif
57	SYSTRAP_RVAL1(mmap)
58	SYSCERROR
59	RET
60	SET_SIZE(mmap)
61
62#else
63
64/*
65 * C library -- mmap64
66 * caddr_t mmap64(caddr_t addr, size_t len, int prot,
67 *	int flags, int fd, off64_t off)
68 */
69
70	ENTRY(mmap64)
71#if defined(__sparc)
72	/* this depends upon the _MAP_NEW flag being in the top bits */
73	sethi	%hi(_MAP_NEW), %g1
74	or	%g1, %o3, %o3
75#endif
76	SYSTRAP_RVAL1(mmap64)
77	SYSCERROR
78	RET
79	SET_SIZE(mmap64)
80
81#endif
82