1 /* 2 * Copyright (c) 2002, 2016, 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 25 package sun.jvm.hotspot.oops; 26 27 import java.util.*; 28 29 import sun.jvm.hotspot.debugger.*; 30 import sun.jvm.hotspot.runtime.*; 31 import sun.jvm.hotspot.types.*; 32 33 public class BreakpointInfo extends VMObject { 34 private static CIntegerField origBytecodeField; 35 private static CIntegerField bciField; 36 private static CIntegerField nameIndexField; 37 private static CIntegerField signatureIndexField; 38 private static AddressField nextField; 39 40 static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } })41 VM.registerVMInitializedObserver(new Observer() { 42 public void update(Observable o, Object data) { 43 initialize(VM.getVM().getTypeDataBase()); 44 } 45 }); 46 } 47 initialize(TypeDataBase db)48 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { 49 if (!VM.getVM().isJvmtiSupported()) { 50 // no BreakpointInfo support without JVMTI 51 return; 52 } 53 54 Type type = db.lookupType("BreakpointInfo"); 55 56 origBytecodeField = type.getCIntegerField("_orig_bytecode"); 57 bciField = type.getCIntegerField("_bci"); 58 nameIndexField = type.getCIntegerField("_name_index"); 59 signatureIndexField = type.getCIntegerField("_signature_index"); 60 nextField = type.getAddressField ("_next"); 61 } 62 BreakpointInfo(Address addr)63 public BreakpointInfo(Address addr) { 64 super(addr); 65 } 66 getOrigBytecode()67 public int getOrigBytecode() { return (int) origBytecodeField.getValue(addr); } getBCI()68 public int getBCI() { return (int) bciField.getValue(addr); } getNameIndex()69 public long getNameIndex() { return nameIndexField.getValue(addr); } getSignatureIndex()70 public long getSignatureIndex() { return signatureIndexField.getValue(addr); } getNext()71 public BreakpointInfo getNext() { 72 return (BreakpointInfo) VMObjectFactory.newObject(BreakpointInfo.class, nextField.getValue(addr)); 73 } 74 match(Method m, int bci)75 public boolean match(Method m, int bci) { 76 return (bci == getBCI() && match(m)); 77 } 78 match(Method m)79 public boolean match(Method m) { 80 return (getNameIndex() == m.getNameIndex() && 81 getSignatureIndex() == m.getSignatureIndex()); 82 } 83 } 84