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 #include <unistd.h>
28
29 int waiting(volatile int *);
30 int go(void);
31
32 int
waiting(volatile int * a)33 waiting(volatile int *a)
34 {
35 return (*a);
36 }
37
38 int
go(void)39 go(void)
40 {
41 int i, j, total = 0;
42
43 for (i = 0; i < 10; i++) {
44 for (j = 0; j < 10; j++) {
45 total += i * j;
46 }
47 }
48
49 return (total);
50 }
51
52 int
main(void)53 main(void)
54 {
55 volatile int a = 0;
56
57 while (waiting(&a) == 0)
58 continue;
59
60 (void) fork();
61 (void) go();
62
63 return (0);
64 }
65