1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate *
4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate * with the License.
8*7c478bd9Sstevel@tonic-gate *
9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate *
14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate *
20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate */
22*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
23*7c478bd9Sstevel@tonic-gate /*
24*7c478bd9Sstevel@tonic-gate * Copyright (c) 1987 Sun Microsystems, Inc.
25*7c478bd9Sstevel@tonic-gate */
26*7c478bd9Sstevel@tonic-gate
27*7c478bd9Sstevel@tonic-gate #include <fcntl.h>
28*7c478bd9Sstevel@tonic-gate #include <sys/mman.h>
29*7c478bd9Sstevel@tonic-gate
30*7c478bd9Sstevel@tonic-gate /* allocate the buffer to be used by profil(2) */
31*7c478bd9Sstevel@tonic-gate char *
_alloc_profil_buf(size)32*7c478bd9Sstevel@tonic-gate _alloc_profil_buf(size)
33*7c478bd9Sstevel@tonic-gate int size;
34*7c478bd9Sstevel@tonic-gate {
35*7c478bd9Sstevel@tonic-gate char *buf;
36*7c478bd9Sstevel@tonic-gate int fd;
37*7c478bd9Sstevel@tonic-gate
38*7c478bd9Sstevel@tonic-gate if((fd = open("/dev/zero",O_RDONLY)) == -1 ) {
39*7c478bd9Sstevel@tonic-gate return (char*) -1;
40*7c478bd9Sstevel@tonic-gate }
41*7c478bd9Sstevel@tonic-gate buf = (char*) mmap(0, size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
42*7c478bd9Sstevel@tonic-gate close(fd);
43*7c478bd9Sstevel@tonic-gate return buf;
44*7c478bd9Sstevel@tonic-gate }
45