2362N/A * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved. 0N/A * Redistribution and use in source and binary forms, with or without 0N/A * modification, are permitted provided that the following conditions 0N/A * - Redistributions of source code must retain the above copyright 0N/A * notice, this list of conditions and the following disclaimer. 0N/A * - Redistributions in binary form must reproduce the above copyright 0N/A * notice, this list of conditions and the following disclaimer in the 0N/A * documentation and/or other materials provided with the distribution. 2362N/A * - Neither the name of Oracle nor the names of its 0N/A * contributors may be used to endorse or promote products derived 0N/A * from this software without specific prior written permission. 0N/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 0N/A * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 0N/A * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 0N/A * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 0N/A * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 0N/A * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 0N/A * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 0N/A * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 0N/A * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 0N/A * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 0N/A * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 0N/A * dtrace -c option launches the command specified in the -c argument and 0N/A * starts tracing the process. Typically, you can run a D script and trace 0N/A * a Java application as follows: 0N/A * dscript.d -Zc "java HelloWorld" 0N/A * The -Z option is needed to permit probe descriptions that match zero 0N/A * probes because Hotspot probes definitions are located in libjvm.so which 0N/A * has not been yet loaded and thus can't be enabled until the application 0N/A * Straightforward attempt to run D script may fail, e.g.: 0N/A * dscript.d -c "java HelloWorld" 0N/A * "probe description hotspotPID:::probename does not match any probes" 0N/A * This is because DTrace tries to enable probes before libjvm.so is loaded. 0N/A * The -Z option requires Solaris patch 118822-30 installed on your system. 0N/A * In case you don't have this Solaris patch use dtrace_helper.d script. 0N/A * This script waits until the Hotspot DTrace probes are loaded and then 0N/A * stops the Java process (passed as '-c' options). After the process is 0N/A * stopped, another D script (passed as first argument) is called to do real 0N/A * trace of Java process.