xref: /onnv-gate/usr/src/cmd/dtrace/test/tst/common/pid/tst.weak2.c (revision 2633:71bab08d24b2)
1*2633Sahl /*
2*2633Sahl  * CDDL HEADER START
3*2633Sahl  *
4*2633Sahl  * The contents of this file are subject to the terms of the
5*2633Sahl  * Common Development and Distribution License (the "License").
6*2633Sahl  * You may not use this file except in compliance with the License.
7*2633Sahl  *
8*2633Sahl  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9*2633Sahl  * or http://www.opensolaris.org/os/licensing.
10*2633Sahl  * See the License for the specific language governing permissions
11*2633Sahl  * and limitations under the License.
12*2633Sahl  *
13*2633Sahl  * When distributing Covered Code, include this CDDL HEADER in each
14*2633Sahl  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15*2633Sahl  * If applicable, add the following below this CDDL HEADER, with the
16*2633Sahl  * fields enclosed by brackets "[]" replaced with your own identifying
17*2633Sahl  * information: Portions Copyright [yyyy] [name of copyright owner]
18*2633Sahl  *
19*2633Sahl  * CDDL HEADER END
20*2633Sahl  */
21*2633Sahl 
22*2633Sahl /*
23*2633Sahl  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24*2633Sahl  * Use is subject to license terms.
25*2633Sahl  */
26*2633Sahl 
27*2633Sahl #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*2633Sahl 
29*2633Sahl #include <signal.h>
30*2633Sahl #include <unistd.h>
31*2633Sahl 
32*2633Sahl /*
33*2633Sahl  * The canonical name should be 'go' since we prefer symbol names with fewer
34*2633Sahl  * leading underscores.
35*2633Sahl  */
36*2633Sahl 
37*2633Sahl #pragma weak _go = go
38*2633Sahl 
39*2633Sahl static int
go(int a)40*2633Sahl go(int a)
41*2633Sahl {
42*2633Sahl 	return (a + 1);
43*2633Sahl }
44*2633Sahl 
45*2633Sahl static void
handle(int sig)46*2633Sahl handle(int sig)
47*2633Sahl {
48*2633Sahl 	_go(1);
49*2633Sahl 	exit(0);
50*2633Sahl }
51*2633Sahl 
52*2633Sahl int
main(int argc,char ** argv)53*2633Sahl main(int argc, char **argv)
54*2633Sahl {
55*2633Sahl 	(void) signal(SIGUSR1, handle);
56*2633Sahl 	for (;;)
57*2633Sahl 		getpid();
58*2633Sahl }
59