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 <signal.h>
28#include <stdlib.h>
29#include <unistd.h>
30
31/*
32 * The canonical name should be 'go' since we prefer symbol names with fewer
33 * leading underscores.
34 */
35
36extern int a;
37
38int go(void);
39
40int a = 100;
41
42int
43go(void)
44{
45	return (a);
46}
47
48static void
49handle(int sig __unused)
50{
51	go();
52	exit(0);
53}
54
55int
56main(void)
57{
58	(void) signal(SIGUSR1, handle);
59	for (;;)
60		getpid();
61}
62