1178476Sjb#!/usr/sbin/dtrace -ws
2178476Sjb/*
3178476Sjb * CDDL HEADER START
4178476Sjb *
5178476Sjb * The contents of this file are subject to the terms of the
6178476Sjb * Common Development and Distribution License (the "License").
7178476Sjb * You may not use this file except in compliance with the License.
8178476Sjb *
9178476Sjb * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10178476Sjb * or http://www.opensolaris.org/os/licensing.
11178476Sjb * See the License for the specific language governing permissions
12178476Sjb * and limitations under the License.
13178476Sjb *
14178476Sjb * When distributing Covered Code, include this CDDL HEADER in each
15178476Sjb * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16178476Sjb * If applicable, add the following below this CDDL HEADER, with the
17178476Sjb * fields enclosed by brackets "[]" replaced with your own identifying
18178476Sjb * information: Portions Copyright [yyyy] [name of copyright owner]
19178476Sjb *
20178476Sjb * CDDL HEADER END
21178476Sjb */
22178476Sjb
23178476Sjb/*
24178476Sjb * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
25178476Sjb * Use is subject to license terms.
26178476Sjb */
27178476Sjb
28178476Sjb#pragma ident	"%Z%%M%	%I%	%E% SMI"
29178476Sjb
30178476Sjb/*
31178476Sjb * ASSERTION:
32178476Sjb * Destructive actions may never be speculative.
33178476Sjb *
34178476Sjb * SECTION: Speculative Tracing/Using a Speculation
35178476Sjb * SECTION: dtrace(1M) Utility/ -w option
36178476Sjb *
37178476Sjb */
38178476Sjb#pragma D option quiet
39178476Sjb
40178476SjbBEGIN
41178476Sjb{
42178476Sjb	i = 0;
43178476Sjb}
44178476Sjb
45178476Sjbprofile:::tick-1sec
46178476Sjb/i < 1/
47178476Sjb{
48178476Sjb	var = speculation();
49178476Sjb	speculate(var);
50178476Sjb	printf("Speculation ID: %d", var);
51178476Sjb	panic();
52178476Sjb	i++;
53178476Sjb}
54178476Sjb
55178476Sjbprofile:::tick-1sec
56178476Sjb/1 == i/
57178476Sjb{
58178476Sjb	exit(0);
59178476Sjb}
60178476Sjb
61178476SjbERROR
62178476Sjb{
63178476Sjb	exit(0);
64178476Sjb}
65178476Sjb
66178476SjbEND
67178476Sjb{
68178476Sjb	exit(0);
69178476Sjb}
70