xref: /freebsd/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/ustack/tst.bigstack.c (revision c6989859ae9388eeb46a24fe88f9b8d07101c710)
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 2007 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <unistd.h>
30 
31 void grow(int);
32 void grow1(int);
33 
34 void
grow(int frame)35 grow(int frame)
36 {
37 	/*
38 	 * Create a ridiculously large stack - enough to push us over
39 	 * the default setting of 'dtrace_ustackdepth_max' (2048).
40 	 */
41 	if (frame >= 2048)
42 		for (;;)
43 			getpid();
44 
45 	grow1(++frame);
46 }
47 
48 void
grow1(int frame)49 grow1(int frame)
50 {
51 	grow(++frame);
52 }
53 
54 int
main(void)55 main(void)
56 {
57 	grow(1);
58 
59 	return (0);
60 }
61