Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/tools/JInfo.java @ 19491:4d66c000d253
Truffle/Instrumentation: more cleanup in Probe
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Wed, 18 Feb 2015 18:30:49 -0800 |
parents | 89152779163c |
children |
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/* * Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ package sun.jvm.hotspot.tools; import sun.jvm.hotspot.debugger.JVMDebugger; import sun.jvm.hotspot.runtime.Arguments; import sun.jvm.hotspot.runtime.VM; public class JInfo extends Tool { public JInfo() { super(); } public JInfo(int m) { mode = m; } public JInfo(JVMDebugger d) { super(d); } protected boolean needsJavaPrefix() { return false; } public String getName() { return "jinfo"; } protected void printFlagsUsage() { System.out.println(" -flags\tto print VM flags"); System.out.println(" -sysprops\tto print Java System properties"); System.out.println(" <no option>\tto print both of the above"); super.printFlagsUsage(); } public static final int MODE_FLAGS = 0; public static final int MODE_SYSPROPS = 1; public static final int MODE_BOTH = 2; public void run() { Tool tool = null; switch (mode) { case MODE_FLAGS: printVMFlags(); return; case MODE_SYSPROPS: tool = new SysPropsDumper(); break; case MODE_BOTH: { tool = new Tool() { public void run() { Tool sysProps = new SysPropsDumper(); sysProps.setAgent(getAgent()); System.out.println("Java System Properties:"); System.out.println(); sysProps.run(); System.out.println(); System.out.println("VM Flags:"); printVMFlags(); System.out.println(); } }; } break; default: usage(); break; } tool.setAgent(getAgent()); tool.run(); } public static void main(String[] args) { int mode = -1; switch (args.length) { case 1: if (args[0].charAt(0) == '-') { // -h or -help or some invalid flag new JInfo(mode).usage(); } else { mode = MODE_BOTH; } break; case 2: case 3: { String modeFlag = args[0]; if (modeFlag.equals("-flags")) { mode = MODE_FLAGS; } else if (modeFlag.equals("-sysprops")) { mode = MODE_SYSPROPS; } else if (modeFlag.charAt(0) == '-') { // -h or -help or some invalid flag new JInfo(mode).usage(); } else { mode = MODE_BOTH; } if (mode != MODE_BOTH) { // we have to consume first flag argument. String[] newArgs = new String[args.length - 1]; for (int i = 0; i < newArgs.length; i++) { newArgs[i] = args[i + 1]; } args = newArgs; } break; } default: new JInfo(mode).usage(); } JInfo jinfo = new JInfo(mode); jinfo.execute(args); } private void printVMFlags() { VM.Flag[] flags = VM.getVM().getCommandLineFlags(); System.out.print("Non-default VM flags: "); for (VM.Flag flag : flags) { if (flag.getOrigin() == 0) { // only print flags which aren't their defaults continue; } if (flag.isBool()) { String onoff = flag.getBool() ? "+" : "-"; System.out.print("-XX:" + onoff + flag.getName() + " "); } else { System.out.print("-XX:" + flag.getName() + "=" + flag.getValue() + " "); } } System.out.println(); System.out.print("Command line: "); String str = Arguments.getJVMFlags(); if (str != null) { System.out.print(str + " "); } str = Arguments.getJVMArgs(); if (str != null) { System.out.print(str); } System.out.println(); } private int mode; }