Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/runtime/JNIid.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 | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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6964458: Reimplement class meta-data storage to use native memory
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2 * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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c18cbe5936b8
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.runtime; | |
| 26 | |
| 27 import java.util.*; | |
| 28 | |
| 29 import sun.jvm.hotspot.debugger.*; | |
| 30 import sun.jvm.hotspot.oops.*; | |
| 31 import sun.jvm.hotspot.types.*; | |
| 32 | |
| 33 public class JNIid extends VMObject { | |
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6964458: Reimplement class meta-data storage to use native memory
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34 private static MetadataField holder; |
| 0 | 35 private static AddressField next; |
| 36 private static CIntegerField offset; | |
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37 private static MetadataField resolvedMethod; |
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da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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parents:
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38 private static MetadataField resolvedReceiver; |
| 0 | 39 |
| 40 private ObjectHeap heap; | |
| 41 | |
| 42 static { | |
| 43 VM.registerVMInitializedObserver(new Observer() { | |
| 44 public void update(Observable o, Object data) { | |
| 45 initialize(VM.getVM().getTypeDataBase()); | |
| 46 } | |
| 47 }); | |
| 48 } | |
| 49 | |
| 50 private static synchronized void initialize(TypeDataBase db) { | |
| 51 | |
| 52 // FIXME: JNIid has been removed as part of redesign of JNI method, | |
| 53 // field ID generation. Please refer to src/share/vm/prims/jniId.hpp/.cpp | |
| 54 // For now, commenting out the below code. | |
| 55 | |
| 56 /*********************************************************** | |
| 57 Type type = db.lookupType("JNIid"); | |
| 58 | |
| 59 holder = type.getOopField("_holder"); | |
| 60 next = type.getAddressField("_next"); | |
| 61 offset = type.getCIntegerField("_offset"); | |
| 62 resolvedMethod = type.getOopField("_resolved_method"); | |
| 63 resolvedReceiver = type.getOopField("_resolved_receiver"); | |
| 64 ***********************************************************/ | |
| 65 } | |
| 66 | |
| 67 public JNIid(Address addr, ObjectHeap heap) { | |
| 68 super(addr); | |
| 69 this.heap = heap; | |
| 70 } | |
| 71 | |
| 72 public JNIid next() { | |
| 73 Address nextAddr = next.getValue(addr); | |
| 74 if (nextAddr == null) { | |
| 75 return null; | |
| 76 } | |
| 77 return new JNIid(nextAddr, heap); | |
| 78 } | |
| 79 | |
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6964458: Reimplement class meta-data storage to use native memory
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parents:
1552
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80 public Klass holder() { return (Klass) holder.getValue(addr); } |
| 0 | 81 public int offset() { return (int) offset.getValue(addr); } |
| 82 public Method method() { | |
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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83 return ((InstanceKlass) holder()).getMethods().at(offset()); |
| 0 | 84 } |
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6725
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6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1552
diff
changeset
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85 public Method resolvedMethod() { return (Method)resolvedMethod.getValue(addr); } |
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da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1552
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changeset
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86 public Klass resolvedReceiver() { return (Klass) resolvedReceiver.getValue(addr); } |
| 0 | 87 } |