usr/src/lib/libc/common/sys/mmap.s

   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