1/* 2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25package sun.jvm.hotspot.ci; 26 27import java.io.*; 28import java.util.*; 29import sun.jvm.hotspot.debugger.*; 30import sun.jvm.hotspot.memory.SystemDictionary; 31import sun.jvm.hotspot.runtime.*; 32import sun.jvm.hotspot.oops.*; 33import sun.jvm.hotspot.types.Type; 34import sun.jvm.hotspot.types.TypeDataBase; 35import sun.jvm.hotspot.types.WrongTypeException; 36 37public class ciInstanceKlass extends ciKlass { 38 static { 39 VM.registerVMInitializedObserver(new Observer() { 40 public void update(Observable o, Object data) { 41 initialize(VM.getVM().getTypeDataBase()); 42 } 43 }); 44 } 45 46 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { 47 Type type = db.lookupType("ciInstanceKlass"); 48 initStateField = new CIntField(type.getCIntegerField("_init_state"), 0); 49 isSharedField = new CIntField(type.getCIntegerField("_is_shared"), 0); 50 CLASS_STATE_LINKED = db.lookupIntConstant("InstanceKlass::linked").intValue(); 51 CLASS_STATE_FULLY_INITIALIZED = db.lookupIntConstant("InstanceKlass::fully_initialized").intValue(); 52 } 53 54 private static CIntField initStateField; 55 private static CIntField isSharedField; 56 private static int CLASS_STATE_LINKED; 57 private static int CLASS_STATE_FULLY_INITIALIZED; 58 59 public ciInstanceKlass(Address addr) { 60 super(addr); 61 } 62 63 public int initState() { 64 int initState = (int)initStateField.getValue(getAddress()); 65 if (isShared() && initState < CLASS_STATE_LINKED) { 66 InstanceKlass ik = (InstanceKlass)getMetadata(); 67 initState = ik.getInitStateAsInt(); 68 } 69 return initState; 70 } 71 72 public boolean isShared() { 73 return isSharedField.getValue(getAddress()) != 0; 74 } 75 76 public boolean isLinked() { 77 return initState() >= CLASS_STATE_LINKED; 78 } 79 80 public boolean isInitialized() { 81 return initState() == CLASS_STATE_FULLY_INITIALIZED; 82 } 83 84 public void dumpReplayData(PrintStream out) { 85 InstanceKlass ik = (InstanceKlass)getMetadata(); 86 ConstantPool cp = ik.getConstants(); 87 88 // Try to record related loaded classes 89 Klass sub = ik.getSubklassKlass(); 90 while (sub != null) { 91 if (sub instanceof InstanceKlass) { 92 out.println("instanceKlass " + sub.getName().asString()); 93 } 94 sub = sub.getNextSiblingKlass(); 95 } 96 97 final int length = (int) cp.getLength(); 98 out.print("ciInstanceKlass " + name() + " " + (isLinked() ? 1 : 0) + " " + (isInitialized() ? 1 : 0) + " " + length); 99 for (int index = 1; index < length; index++) { 100 out.print(" " + cp.getTags().at(index)); 101 } 102 out.println(); 103 if (isInitialized()) { 104 Field[] staticFields = ik.getStaticFields(); 105 for (int i = 0; i < staticFields.length; i++) { 106 Field f = staticFields[i]; 107 Oop mirror = ik.getJavaMirror(); 108 if (f.isFinal() && !f.hasInitialValue()) { 109 out.print("staticfield " + name() + " " + 110 OopUtilities.escapeString(f.getID().getName()) + " " + 111 f.getFieldType().getSignature().asString() + " "); 112 if (f instanceof ByteField) { 113 ByteField bf = (ByteField)f; 114 out.println(bf.getValue(mirror)); 115 } else if (f instanceof BooleanField) { 116 BooleanField bf = (BooleanField)f; 117 out.println(bf.getValue(mirror) ? 1 : 0); 118 } else if (f instanceof ShortField) { 119 ShortField bf = (ShortField)f; 120 out.println(bf.getValue(mirror)); 121 } else if (f instanceof CharField) { 122 CharField bf = (CharField)f; 123 out.println(bf.getValue(mirror) & 0xffff); 124 } else if (f instanceof IntField) { 125 IntField bf = (IntField)f; 126 out.println(bf.getValue(mirror)); 127 } else if (f instanceof LongField) { 128 LongField bf = (LongField)f; 129 out.println(bf.getValue(mirror)); 130 } else if (f instanceof FloatField) { 131 FloatField bf = (FloatField)f; 132 out.println(Float.floatToRawIntBits(bf.getValue(mirror))); 133 } else if (f instanceof DoubleField) { 134 DoubleField bf = (DoubleField)f; 135 out.println(Double.doubleToRawLongBits(bf.getValue(mirror))); 136 } else if (f instanceof OopField) { 137 OopField bf = (OopField)f; 138 Oop value = bf.getValue(mirror); 139 if (value == null) { 140 out.println("null"); 141 } else if (value.isInstance()) { 142 Instance inst = (Instance)value; 143 if (inst.isA(SystemDictionary.getStringKlass())) { 144 out.println("\"" + OopUtilities.stringOopToEscapedString(inst) + "\""); 145 } else { 146 out.println(inst.getKlass().getName().asString()); 147 } 148 } else if (value.isObjArray()) { 149 ObjArray oa = (ObjArray)value; 150 Klass ek = (ObjArrayKlass)oa.getKlass(); 151 out.println(oa.getLength() + " " + ek.getName().asString()); 152 } else if (value.isTypeArray()) { 153 TypeArray ta = (TypeArray)value; 154 out.println(ta.getLength()); 155 } else { 156 out.println(value); 157 } 158 } 159 } 160 } 161 } 162 } 163} 164