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 2006 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 /* mincore.c SMI 12/14/90 */
30 #include <errno.h>
31 #include <sys/syscall.h>
32 #include <sys/types.h>
33 #include <unistd.h>
34
35 #define INCORE 1; /* return only the incore status bit */
36
37 int
mincore(caddr_t addr,int len,char * vec)38 mincore(caddr_t addr, int len, char *vec)
39 {
40 int i;
41
42 if (len < 0) {
43 errno = EINVAL;
44 return (-1);
45 }
46
47 if (_syscall(SYS_mincore, addr, len, vec) == 0) {
48 len /= getpagesize();
49 for (i = 0; i < len; i++) {
50 vec[i] &= INCORE;
51 }
52 }
53 }
54