Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/ci/ciObjectFactory.java @ 6725:da91efe96a93
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 | f6f3bb0ee072 |
| children | 79f492f184d0 |
| rev | line source |
|---|---|
| 3939 | 1 /* |
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6964458: Reimplement class meta-data storage to use native memory
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2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. |
| 3939 | 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.ci; | |
| 26 | |
| 27 import java.lang.reflect.Constructor; | |
| 28 import java.util.*; | |
| 29 import sun.jvm.hotspot.debugger.*; | |
| 30 import sun.jvm.hotspot.runtime.*; | |
| 31 import sun.jvm.hotspot.utilities.*; | |
| 32 import sun.jvm.hotspot.oops.*; | |
| 33 import sun.jvm.hotspot.types.*; | |
| 34 | |
| 35 public class ciObjectFactory extends VMObject { | |
| 36 static { | |
| 37 VM.registerVMInitializedObserver(new Observer() { | |
| 38 public void update(Observable o, Object data) { | |
| 39 initialize(VM.getVM().getTypeDataBase()); | |
| 40 } | |
| 41 }); | |
| 42 } | |
| 43 | |
| 44 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { | |
| 45 Type type = db.lookupType("ciObjectFactory"); | |
| 46 unloadedMethodsField = type.getAddressField("_unloaded_methods"); | |
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47 ciMetadataField = type.getAddressField("_ci_metadata"); |
| 3939 | 48 symbolsField = type.getAddressField("_symbols"); |
| 49 | |
| 50 ciObjectConstructor = new VirtualBaseConstructor<ciObject>(db, db.lookupType("ciObject"), "sun.jvm.hotspot.ci", ciObject.class); | |
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51 ciMetadataConstructor = new VirtualBaseConstructor<ciMetadata>(db, db.lookupType("ciMetadata"), "sun.jvm.hotspot.ci", ciMetadata.class); |
| 3939 | 52 ciSymbolConstructor = new VirtualBaseConstructor<ciSymbol>(db, db.lookupType("ciSymbol"), "sun.jvm.hotspot.ci", ciSymbol.class); |
| 53 } | |
| 54 | |
| 55 private static AddressField unloadedMethodsField; | |
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6964458: Reimplement class meta-data storage to use native memory
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56 private static AddressField ciMetadataField; |
| 3939 | 57 private static AddressField symbolsField; |
| 58 | |
| 59 private static VirtualBaseConstructor<ciObject> ciObjectConstructor; | |
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6964458: Reimplement class meta-data storage to use native memory
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60 private static VirtualBaseConstructor<ciMetadata> ciMetadataConstructor; |
| 3939 | 61 private static VirtualBaseConstructor<ciSymbol> ciSymbolConstructor; |
| 62 | |
| 63 public static ciObject get(Address addr) { | |
| 64 if (addr == null) return null; | |
| 65 | |
| 66 return (ciObject)ciObjectConstructor.instantiateWrapperFor(addr); | |
| 67 } | |
| 68 | |
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6964458: Reimplement class meta-data storage to use native memory
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69 public static ciMetadata getMetadata(Address addr) { |
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70 if (addr == null) return null; |
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71 |
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72 return (ciMetadata)ciMetadataConstructor.instantiateWrapperFor(addr); |
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73 } |
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74 |
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75 public GrowableArray<ciMetadata> objects() { |
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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76 return GrowableArray.create(ciMetadataField.getValue(getAddress()), ciMetadataConstructor); |
| 3939 | 77 } |
| 78 | |
| 79 public GrowableArray<ciSymbol> symbols() { | |
| 80 return GrowableArray.create(symbolsField.getValue(getAddress()), ciSymbolConstructor); | |
| 81 } | |
| 82 | |
| 83 public ciObjectFactory(Address addr) { | |
| 84 super(addr); | |
| 85 } | |
| 86 } |