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 * Copyright (c) 2012 by Delphix. All rights reserved. 29 */ 30 31 #pragma D option destructive 32 #pragma D option jstackstrsize=1 33 #pragma D option quiet 34 35 BEGIN 36 { 37 /* 38 * Since some java versions are erroneously compiled with -xlazyload 39 * and therefore don't activate their ustack() helper by default, we 40 * use the DTrace helper audit library to activate it. 41 */ 42 system("LD_AUDIT_32=/usr/lib/dtrace/libdtrace_forceload.so %s", 43 "java -version"); 44 } 45 46 syscall:::entry 47 { 48 @[jstack()] = count(); 49 } 50 51 proc:::exit 52 /progenyof($pid) && execname == "java"/ 53 { 54 exit(0); 55 } 56 57 END 58 { 59 printa("\r", @); 60 printf("\n"); 61 } 62