Mercurial > hg > graal-compiler
view agent/src/share/classes/sun/jvm/hotspot/tools/HeapDumper.java @ 3972:4f93f0d00802
7059019: G1: add G1 support to the SA
Summary: Extend the SA to recognize the G1CollectedHeap and implement any code that's needed by our serviceability tools (jmap, jinfo, jstack, etc.) that depend on the SA.
Reviewed-by: never, poonam, johnc
author | tonyp |
---|---|
date | Tue, 20 Sep 2011 09:59:59 -0400 |
parents | c18cbe5936b8 |
children | 38ea2efa32a7 |
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/* * Copyright (c) 2005, 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.utilities.HeapHprofBinWriter; import java.io.IOException; /* * This tool is used by the JDK jmap utility to dump the heap of the target * process/core as a HPROF binary file. It can also be used as a standalone * tool if required. */ public class HeapDumper extends Tool { private static String DEFAULT_DUMP_FILE = "heap.bin"; private String dumpFile; public HeapDumper(String dumpFile) { this.dumpFile = dumpFile; } protected void printFlagsUsage() { System.out.println(" <no option>\tto dump heap to " + DEFAULT_DUMP_FILE); System.out.println(" -f <file>\tto dump heap to <file>"); super.printFlagsUsage(); } // use HeapHprofBinWriter to write the heap dump public void run() { System.out.println("Dumping heap to " + dumpFile + " ..."); try { new HeapHprofBinWriter().write(dumpFile); System.out.println("Heap dump file created"); } catch (IOException ioe) { System.err.println(ioe.getMessage()); } } // JDK jmap utility will always invoke this tool as: // HeapDumper -f <file> <args...> public static void main(String args[]) { String file = DEFAULT_DUMP_FILE; if (args.length > 2) { if (args[0].equals("-f")) { file = args[1]; String[] newargs = new String[args.length-2]; System.arraycopy(args, 2, newargs, 0, args.length-2); args = newargs; } } HeapDumper dumper = new HeapDumper(file); dumper.start(args); dumper.stop(); } }