Mercurial > hg > truffle
view test/testlibrary/whitebox/sun/hotspot/WhiteBox.java @ 10241:d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
Summary: Make processing of minimum, initial and maximum heap size more intiutive by removing previous limitations on allowed values, and make error reporting consistent. Further, fix errors in ergonomic heap sizing.
Reviewed-by: johnc, jwilhelm, tamao
author | tschatzl |
---|---|
date | Mon, 06 May 2013 17:19:42 +0200 |
parents | f32b6c267d2e |
children | f54c85acc043 |
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/* * Copyright (c) 2012, 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.hotspot; import java.lang.reflect.Executable; import java.security.BasicPermission; import sun.hotspot.parser.DiagnosticCommand; public class WhiteBox { @SuppressWarnings("serial") public static class WhiteBoxPermission extends BasicPermission { public WhiteBoxPermission(String s) { super(s); } } private WhiteBox() {} private static final WhiteBox instance = new WhiteBox(); private static native void registerNatives(); /** * Returns the singleton WhiteBox instance. * * The returned WhiteBox object should be carefully guarded * by the caller, since it can be used to read and write data * at arbitrary memory addresses. It must never be passed to * untrusted code. */ public synchronized static WhiteBox getWhiteBox() { SecurityManager sm = System.getSecurityManager(); if (sm != null) { sm.checkPermission(new WhiteBoxPermission("getInstance")); } return instance; } static { registerNatives(); } // Arguments public native void printHeapSizes(); // Memory public native long getObjectAddress(Object o); public native int getHeapOopSize(); // Runtime // Make sure class name is in the correct format public boolean isClassAlive(String name) { return isClassAlive0(name.replace('.', '/')); } private native boolean isClassAlive0(String name); // G1 public native boolean g1InConcurrentMark(); public native boolean g1IsHumongous(Object o); public native long g1NumFreeRegions(); public native int g1RegionSize(); public native Object[] parseCommandLine(String commandline, DiagnosticCommand[] args); // NMT public native long NMTMalloc(long size); public native void NMTFree(long mem); public native long NMTReserveMemory(long size); public native void NMTCommitMemory(long addr, long size); public native void NMTUncommitMemory(long addr, long size); public native void NMTReleaseMemory(long addr, long size); public native boolean NMTWaitForDataMerge(); // Compiler public native void deoptimizeAll(); public native boolean isMethodCompiled(Executable method); public boolean isMethodCompilable(Executable method) { return isMethodCompilable(method, -1 /*any*/); } public native boolean isMethodCompilable(Executable method, int compLevel); public native boolean isMethodQueuedForCompilation(Executable method); public native int deoptimizeMethod(Executable method); public void makeMethodNotCompilable(Executable method) { makeMethodNotCompilable(method, -1 /*any*/); } public native void makeMethodNotCompilable(Executable method, int compLevel); public native int getMethodCompilationLevel(Executable method); public native boolean testSetDontInlineMethod(Executable method, boolean value); public native int getCompileQueuesSize(); public native boolean testSetForceInlineMethod(Executable method, boolean value); public native boolean enqueueMethodForCompilation(Executable method, int compLevel); public native void clearMethodState(Executable method); // Intered strings public native boolean isInStringTable(String str); // Memory public native long reserveMemory(long size); // force Full GC public native void fullGC(); }