1 #!/usr/sbin/dtrace -Cs
2 
3 /*
4  * CDDL HEADER START
5  *
6  * The contents of this file are subject to the terms of the
7  * Common Development and Distribution License (the "License").
8  * You may not use this file except in compliance with the License.
9  *
10  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
11  * or http://www.opensolaris.org/os/licensing.
12  * See the License for the specific language governing permissions
13  * and limitations under the License.
14  *
15  * When distributing Covered Code, include this CDDL HEADER in each
16  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
17  * If applicable, add the following below this CDDL HEADER, with the
18  * fields enclosed by brackets "[]" replaced with your own identifying
19  * information: Portions Copyright [yyyy] [name of copyright owner]
20  *
21  * CDDL HEADER END
22  */
23 
24 /*
25  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
26  * Use is subject to license terms.
27  */
28 
29 /*
30  * We set our buffer size absurdly low to prevent a flood of errors that we
31  * don't care about.
32  */
33 #pragma D option bufsize=16
34 #pragma D option bufpolicy=ring
35 
36 fbt:::
37 {
38 	n++;
39 #ifdef __sparc
40 	trace(*(int *)0x8000000000000000 ^ rand());
41 #else
42 	trace(*(int *)(`kernelbase - 1));
43 #endif
44 }
45 
46 dtrace:::ERROR
47 {
48 	err++;
49 }
50 
51 tick-1sec
52 /sec++ == 10/
53 {
54 	exit(2);
55 }
56 
57 END
58 /n == 0 || err == 0/
59 {
60 	exit(1);
61 }
62 
63 END
64 /n != 0 && err != 0/
65 {
66 	exit(0);
67 }
68