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 * Aggregating functions may never be speculative. 30 * 31 * SECTION: Speculative Tracing/Using a Speculation 32 * 33 */ 34 #pragma D option quiet 35 36 BEGIN 37 { 38 i = 0; 39 } 40 41 profile:::tick-1sec 42 /i < 1/ 43 { 44 var = speculation(); 45 speculate(var); 46 printf("Speculation ID: %d", var); 47 @Maximus["speculate"] = max(i); 48 i++; 49 } 50 51 profile:::tick-1sec 52 /1 == i/ 53 { 54 exit(0); 55 } 56 57 ERROR 58 { 59 exit(0); 60 } 61