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comparison agent/src/share/classes/sun/jvm/hotspot/oops/OopField.java @ 6725:da91efe96a93

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6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents c7f3d0b4570f
children
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6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
23 */ 23 */
24 24
25 package sun.jvm.hotspot.oops; 25 package sun.jvm.hotspot.oops;
26 26
27 import sun.jvm.hotspot.debugger.*; 27 import sun.jvm.hotspot.debugger.*;
28 import sun.jvm.hotspot.runtime.VM;
29 import sun.jvm.hotspot.runtime.VMObject;
28 30
29 // The class for an oop field simply provides access to the value. 31 // The class for an oop field simply provides access to the value.
30 public class OopField extends Field { 32 public class OopField extends Field {
31 public OopField(FieldIdentifier id, long offset, boolean isVMField) { 33 public OopField(FieldIdentifier id, long offset, boolean isVMField) {
32 super(id, offset, isVMField); 34 super(id, offset, isVMField);
53 throw new InternalError(obj.toString()); 55 throw new InternalError(obj.toString());
54 } 56 }
55 return obj.getHandle().getOopHandleAt(getOffset()); 57 return obj.getHandle().getOopHandleAt(getOffset());
56 } 58 }
57 59
60 public Oop getValue(VMObject obj) {
61 return VM.getVM().getObjectHeap().newOop(getValueAsOopHandle(obj));
62 }
63
64 /** Debugging support */
65 public OopHandle getValueAsOopHandle(VMObject obj) {
66 return obj.getAddress().getOopHandleAt(getOffset());
67 }
68
58 public void setValue(Oop obj) throws MutationException { 69 public void setValue(Oop obj) throws MutationException {
59 // Fix this: setOopAt is missing in Address 70 // Fix this: setOopAt is missing in Address
60 } 71 }
61 } 72 }