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#pragma D option quiet 38178476Sjb 39178476SjbBEGIN 40178476Sjb{ 41178476Sjb i = 0; 42178476Sjb} 43178476Sjb 44178476Sjbprofile:::tick-1sec 45178476Sjb/i < 1/ 46178476Sjb{ 47178476Sjb var = speculation(); 48178476Sjb speculate(var); 49178476Sjb printf("Speculation ID: %d", var); 50178476Sjb raise(9); 51178476Sjb i++; 52178476Sjb} 53178476Sjb 54178476Sjbprofile:::tick-1sec 55178476Sjb/1 == i/ 56178476Sjb{ 57178476Sjb exit(0); 58178476Sjb} 59178476Sjb 60178476SjbERROR 61178476Sjb{ 62178476Sjb exit(0); 63178476Sjb} 64178476Sjb 65178476SjbEND 66178476Sjb{ 67178476Sjb exit(0); 68178476Sjb} 69