/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Copyright (c) 1987 Sun Microsystems, Inc.
*/
#include <fcntl.h>
#include <sys/mman.h>
/* allocate the buffer to be used by profil(2) */
char *
_alloc_profil_buf(size)
int size;
{
char *buf;
int fd;
if((fd = open("/dev/zero",O_RDONLY)) == -1 ) {
return (char*) -1;
}
buf = (char*) mmap(0, size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
close(fd);
return buf;
}