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 /*
28  * ASSERTION:
29  * 	trace rand() at every fbt probe point.
30  *
31  * SECTION: Actions and Subroutines/rand();
32  *	Options and Tunables/bufsize;
33  * 	Options and Tunables/bufpolicy
34  */
35 
36 /*
37  * We set our buffer size absurdly low to prevent a flood of errors that we
38  * don't care about.
39  */
40 
41 #pragma D option bufsize=16
42 #pragma D option bufpolicy=ring
43 
44 fbt:::
45 {
46 	n++;
47 	trace(*(int *)rand());
48 }
49 
50 dtrace:::ERROR
51 {
52 	err++;
53 }
54 
55 tick-1sec
56 /sec++ == 10/
57 {
58 	exit(2);
59 }
60 
61 END
62 /n == 0 || err == 0/
63 {
64 	exit(1);
65 }
66 
67 END
68 /n != 0 && err != 0/
69 {
70 	exit(0);
71 }
72