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 * Calling speculate() with zero does not have any ill effects. 30 * Statement after speculate does not execute. 31 * 32 * SECTION: Speculative Tracing/Creating a Speculation 33 */ 34 35 #pragma D option quiet 36 37 BEGIN 38 { 39 self->speculateFlag = 0; 40 self->spec = speculation(); 41 self->spec = speculation(); 42 printf("Speculative buffer ID: %d\n", self->spec); 43 } 44 45 BEGIN 46 { 47 speculate(self->spec); 48 self->speculateFlag++; 49 } 50 51 BEGIN 52 /1 == self->speculateFlag/ 53 { 54 printf("Statement was executed\n"); 55 exit(1); 56 } 57 58 BEGIN 59 /1 != self->speculateFlag/ 60 { 61 printf("Statement wasn't executed\n"); 62 exit(0); 63 } 64