1 /* 2 * Copyright (c) 2001, 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, 20 * CA 94065 USA or visit www.oracle.com if you need additional information or 21 * have any questions. 22 * 23 */ 24 25 package sun.jvm.hotspot.debugger.cdbg.basic; 26 27 import sun.jvm.hotspot.debugger.*; 28 import sun.jvm.hotspot.debugger.cdbg.*; 29 30 public class BasicField implements Field { 31 private String name; 32 private Type type; 33 private int accessControl; 34 private boolean isStatic; 35 private long offset; 36 private Address address; 37 38 /** See {@link sun.jvm.hotspot.debugger.cdbg.AccessControl} for 39 valid access control values */ 40 public BasicField(String name, Type type, int accessControl, boolean isStatic) { 41 this.name = name; 42 this.type = type; 43 this.accessControl = accessControl; 44 } 45 46 public int getAccessControl() { return accessControl; } 47 48 public String getName() { return name; } 49 50 public Type getType() { return type; } 51 52 public boolean isStatic() { return isStatic; } 53 54 /** Nonstatic fields only: set offset of field */ 55 public void setOffset(long offset) { 56 if (isStatic) throw new RuntimeException("Nonstatic fields only"); 57 this.offset = offset; 58 } 59 60 /** Nonstatic fields only: get offset of field */ 61 public long getOffset() { 62 if (isStatic) throw new RuntimeException("Nonstatic fields only"); 63 return offset; 64 } 65 66 /** Static fields only: set address of field. The resolution 67 mechanism will automatically attempt to find the address of the 68 field based on a "class name"::"field name" global symbol lookup 69 in the database if the address has not been set. */ 70 public void setAddress(Address address) { 71 if (!isStatic) throw new RuntimeException("Static fields only"); 72 this.address = address; 73 } 74 75 /** Static fields only: get address of field */ 76 public Address getAddress() { 77 if (!isStatic) throw new RuntimeException("Static fields only"); 78 return address; 79 } 80 81 public void resolveTypes(Type containingType, BasicCDebugInfoDataBase db, ResolveListener listener) { 82 type = db.resolveType(containingType, type, listener, "resolving field type"); 83 if (isStatic) { 84 if (address == null) { 85 String fieldSymName = getType().getName() + "::" + getName(); 86 GlobalSym sym = db.lookupSym(fieldSymName); 87 if (sym == null) { 88 listener.resolveFailed(getType(), getName()); 89 } else { 90 address = sym.getAddress(); 91 } 92 } 93 } 94 } 95 }