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 * trace with NULL argument - generate a bunch of errors 30 * 31 * SECTION: Options and Tunables/bufsize; 32 * Options and Tunables/bufpolicy 33 */ 34 35 /* 36 * We set our buffer size absurdly low to prevent a flood of errors that we 37 * don't care about. 38 */ 39 40 #pragma D option bufsize=16 41 #pragma D option bufpolicy=ring 42 43 fbt::: 44 { 45 on = (timestamp / 1000000000) & 1; 46 } 47 48 fbt::: 49 /on/ 50 { 51 n++; 52 trace(*(int *)NULL); 53 } 54 55 dtrace:::ERROR 56 { 57 err++; 58 } 59 60 tick-1sec 61 /sec++ == 10/ 62 { 63 exit(2); 64 } 65 66 END 67 /n == 0 || err == 0/ 68 { 69 exit(1); 70 } 71 72 END 73 /n != 0 && err != 0/ 74 { 75 exit(0); 76 } 77