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 <unistd.h>
29
30 /*
31 * The canonical name should be 'go' since we prefer symbol names with fewer
32 * leading underscores.
33 */
34
35 #pragma weak _go = go
36
37 static int
go(int a)38 go(int a)
39 {
40 return (a + 1);
41 }
42
43 static void
handle(int sig)44 handle(int sig)
45 {
46 _go(1);
47 exit(0);
48 }
49
50 int
main(int argc,char ** argv)51 main(int argc, char **argv)
52 {
53 (void) signal(SIGUSR1, handle);
54 for (;;)
55 getpid();
56 }
57