Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/utilities/HashtableEntry.java @ 3779:04760e41b01e
7016112: CMS: crash during promotion testing
Summary: Also reviewed by mikael.gerdin@oracle.com; stdlib:qsort() does byte-by-byte swapping on Windows. This leads to pointer shearing. Fix is to implement a quicksort that does full pointer updates.
Reviewed-by: never, coleenp, ysr
author | brutisso |
---|---|
date | Tue, 28 Jun 2011 14:23:27 +0200 |
parents | 1d1603768966 |
children | d2a62e0f25eb |
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/* * Copyright (c) 2003, 2011, 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.utilities; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.oops.Oop; import sun.jvm.hotspot.oops.ObjectHeap; import sun.jvm.hotspot.types.*; import sun.jvm.hotspot.runtime.*; public class HashtableEntry extends BasicHashtableEntry { static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static synchronized void initialize(TypeDataBase db) { Type type = db.lookupType("HashtableEntry<intptr_t>"); literalField = type.getAddressField("_literal"); } // Fields private static AddressField literalField; // Accessors public Address literalValue() { return literalField.getValue(addr); } public HashtableEntry(Address addr) { super(addr); } }