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mmap.c revision 1.3.2.1 
      1      1.2  cgd /*
      2      1.2  cgd  * Copyright (c) 1992, 1993
      3      1.2  cgd  *	The Regents of the University of California.  All rights reserved.
      4      1.2  cgd  *
      5      1.2  cgd  * Redistribution and use in source and binary forms, with or without
      6      1.2  cgd  * modification, are permitted provided that the following conditions
      7      1.2  cgd  * are met:
      8      1.2  cgd  * 1. Redistributions of source code must retain the above copyright
      9      1.2  cgd  *    notice, this list of conditions and the following disclaimer.
     10      1.2  cgd  * 2. Redistributions in binary form must reproduce the above copyright
     11      1.2  cgd  *    notice, this list of conditions and the following disclaimer in the
     12      1.2  cgd  *    documentation and/or other materials provided with the distribution.
     13      1.2  cgd  * 3. All advertising materials mentioning features or use of this software
     14      1.2  cgd  *    must display the following acknowledgement:
     15      1.2  cgd  *	This product includes software developed by the University of
     16      1.2  cgd  *	California, Berkeley and its contributors.
     17      1.2  cgd  * 4. Neither the name of the University nor the names of its contributors
     18      1.2  cgd  *    may be used to endorse or promote products derived from this software
     19      1.2  cgd  *    without specific prior written permission.
     20      1.2  cgd  *
     21      1.2  cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22      1.2  cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23      1.2  cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24      1.2  cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25      1.2  cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26      1.2  cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27      1.2  cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28      1.2  cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29      1.2  cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30      1.2  cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31      1.2  cgd  * SUCH DAMAGE.
     32      1.2  cgd  */
     33      1.2  cgd 
     34      1.2  cgd #if defined(LIBC_SCCS) && !defined(lint)
     35      1.2  cgd /* from: static char sccsid[] = "@(#)mmap.c	8.1 (Berkeley) 6/17/93"; */
     36  1.3.2.1  jtc static char *rcsid = "$Id: mmap.c,v 1.3.2.1 1995/04/18 04:33:40 jtc Exp $";
     37      1.2  cgd #endif /* LIBC_SCCS and not lint */
     38      1.1  cgd 
     39  1.3.2.1  jtc #include "namespace.h"
     40      1.1  cgd #include <sys/types.h>
     41      1.2  cgd #include <sys/mman.h>
     42      1.1  cgd #include <sys/syscall.h>
     43      1.1  cgd 
     44      1.2  cgd /*
     45      1.2  cgd  * This function provides 64-bit offset padding that
     46      1.2  cgd  * is not supplied by GCC 1.X but is supplied by GCC 2.X.
     47      1.2  cgd  */
     48      1.1  cgd caddr_t
     49      1.1  cgd mmap(addr, len, prot, flags, fd, offset)
     50      1.2  cgd 	caddr_t addr;
     51      1.2  cgd 	size_t	len;
     52      1.2  cgd 	int	prot;
     53      1.2  cgd 	int	flags;
     54      1.2  cgd 	int	fd;
     55      1.2  cgd 	off_t	offset;
     56      1.1  cgd {
     57      1.1  cgd 
     58      1.3  cgd 	return((caddr_t)(long)__syscall((quad_t)SYS_mmap, addr, len, prot,
     59      1.3  cgd 	    flags, fd, 0, offset));
     60      1.1  cgd }
     61