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comparison agent/src/share/classes/sun/jvm/hotspot/memory/DictionaryEntry.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 1d1603768966
children 6bd680e9ea35
comparison
equal deleted inserted replaced
6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2003, 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.memory; 25 package sun.jvm.hotspot.memory;
26 26
27 import java.util.*; 27 import java.util.*;
28 import sun.jvm.hotspot.classfile.ClassLoaderData;
28 import sun.jvm.hotspot.debugger.*; 29 import sun.jvm.hotspot.debugger.*;
29 import sun.jvm.hotspot.oops.*; 30 import sun.jvm.hotspot.oops.*;
30 import sun.jvm.hotspot.types.*; 31 import sun.jvm.hotspot.types.*;
31 import sun.jvm.hotspot.runtime.*; 32 import sun.jvm.hotspot.runtime.*;
32 import sun.jvm.hotspot.utilities.*; 33 import sun.jvm.hotspot.utilities.*;
41 } 42 }
42 43
43 private static synchronized void initialize(TypeDataBase db) { 44 private static synchronized void initialize(TypeDataBase db) {
44 Type type = db.lookupType("DictionaryEntry"); 45 Type type = db.lookupType("DictionaryEntry");
45 pdSetField = type.getAddressField("_pd_set"); 46 pdSetField = type.getAddressField("_pd_set");
46 loaderField = type.getOopField("_loader"); 47 loaderDataField = type.getAddressField("_loader_data");
47 } 48 }
48 49
49 // Fields 50 // Fields
50 private static AddressField pdSetField; 51 private static AddressField pdSetField;
51 private static sun.jvm.hotspot.types.OopField loaderField; 52 private static AddressField loaderDataField;
52 53
53 // Accessors 54 // Accessors
54 55
55 public ProtectionDomainEntry pdSet() { 56 public ProtectionDomainEntry pdSet() {
56 Address tmp = pdSetField.getValue(addr); 57 Address tmp = pdSetField.getValue(addr);
57 return (ProtectionDomainEntry) VMObjectFactory.newObject( 58 return (ProtectionDomainEntry) VMObjectFactory.newObject(
58 ProtectionDomainEntry.class, tmp); 59 ProtectionDomainEntry.class, tmp);
59 } 60 }
60 61
61 public Oop loader() { 62 public Oop loader() {
62 return VM.getVM().getObjectHeap().newOop(loaderField.getValue(addr)); 63 return loaderData().getClassLoader();
64 }
65
66 public ClassLoaderData loaderData() {
67 return ClassLoaderData.instantiateWrapperFor(loaderDataField.getValue(addr));
63 } 68 }
64 69
65 public Klass klass() { 70 public Klass klass() {
66 return (Klass)VM.getVM().getObjectHeap().newOop(literalValue().addOffsetToAsOopHandle(0)); 71 return (Klass)Metadata.instantiateWrapperFor(literalValue());
67 } 72 }
68 73
69 public DictionaryEntry(Address addr) { 74 public DictionaryEntry(Address addr) {
70 super(addr); 75 super(addr);
71 } 76 }