Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/ci/ciInstanceKlass.java @ 3945:8ed53447f690
Merge
author | iveresov |
---|---|
date | Thu, 15 Sep 2011 12:44:09 -0700 |
parents | f6f3bb0ee072 |
children | da91efe96a93 |
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/* * Copyright (c) 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ package sun.jvm.hotspot.ci; import java.io.*; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.memory.SystemDictionary; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.oops.*; import sun.jvm.hotspot.types.Type; import sun.jvm.hotspot.types.TypeDataBase; import sun.jvm.hotspot.types.WrongTypeException; public class ciInstanceKlass extends ciKlass { static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { Type type = db.lookupType("ciInstanceKlass"); initStateField = new CIntField(type.getCIntegerField("_init_state"), 0); isSharedField = new CIntField(type.getCIntegerField("_is_shared"), 0); CLASS_STATE_LINKED = db.lookupIntConstant("instanceKlass::linked").intValue(); CLASS_STATE_FULLY_INITIALIZED = db.lookupIntConstant("instanceKlass::fully_initialized").intValue(); } private static CIntField initStateField; private static CIntField isSharedField; private static int CLASS_STATE_LINKED; private static int CLASS_STATE_FULLY_INITIALIZED; public ciInstanceKlass(Address addr) { super(addr); } public int initState() { int initState = (int)initStateField.getValue(getAddress()); if (isShared() && initState < CLASS_STATE_LINKED) { InstanceKlass ik = (InstanceKlass)getOop(); initState = ik.getInitStateAsInt(); } return initState; } public boolean isShared() { return isSharedField.getValue(getAddress()) != 0; } public boolean isLinked() { return initState() >= CLASS_STATE_LINKED; } public boolean isInitialized() { return initState() == CLASS_STATE_FULLY_INITIALIZED; } }