| /* |
| * Copyright (c) 2012, 2016, 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.oops; |
| |
| import java.io.*; |
| import java.util.*; |
| import sun.jvm.hotspot.utilities.*; |
| import sun.jvm.hotspot.debugger.*; |
| import sun.jvm.hotspot.runtime.*; |
| import sun.jvm.hotspot.types.*; |
| |
| abstract public class Metadata extends VMObject { |
| static { |
| VM.registerVMInitializedObserver(new Observer() { |
| public void update(Observable o, Object data) { |
| initialize(VM.getVM().getTypeDataBase()); |
| } |
| }); |
| } |
| |
| public Metadata(Address addr) { |
| super(addr); |
| } |
| |
| public static long alignSize(long size) { |
| // natural word size. |
| return VM.getVM().alignUp(size, VM.getVM().getBytesPerWord()); |
| } |
| |
| private static VirtualBaseConstructor<Metadata> metadataConstructor; |
| |
| private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { |
| metadataConstructor = new VirtualBaseConstructor<Metadata>(db, db.lookupType("Metadata"), null, null); |
| // Define an explicit mapping since the C++ and Java type names don't match. |
| metadataConstructor.addMapping("Metadata", Metadata.class); |
| metadataConstructor.addMapping("Klass", Klass.class); |
| metadataConstructor.addMapping("InstanceKlass", InstanceKlass.class); |
| metadataConstructor.addMapping("InstanceMirrorKlass", InstanceMirrorKlass.class); |
| metadataConstructor.addMapping("InstanceRefKlass", InstanceRefKlass.class); |
| metadataConstructor.addMapping("InstanceClassLoaderKlass", InstanceClassLoaderKlass.class); |
| metadataConstructor.addMapping("TypeArrayKlass", TypeArrayKlass.class); |
| metadataConstructor.addMapping("ObjArrayKlass", ObjArrayKlass.class); |
| metadataConstructor.addMapping("Method", Method.class); |
| metadataConstructor.addMapping("MethodData", MethodData.class); |
| metadataConstructor.addMapping("ConstMethod", ConstMethod.class); |
| metadataConstructor.addMapping("ConstantPool", ConstantPool.class); |
| metadataConstructor.addMapping("ConstantPoolCache", ConstantPoolCache.class); |
| } |
| |
| public static Metadata instantiateWrapperFor(Address addr) { |
| return metadataConstructor.instantiateWrapperFor(addr); |
| } |
| |
| public void iterate(MetadataVisitor visitor) { |
| visitor.setObj(this); |
| visitor.prologue(); |
| iterateFields(visitor); |
| visitor.epilogue(); |
| } |
| |
| void iterateFields(MetadataVisitor visitor) { |
| } |
| |
| abstract public void printValueOn(PrintStream tty); |
| public void dumpReplayData(PrintStream out) { |
| out.println("# Unknown Metadata"); |
| } |
| } |