Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/ci/ciObject.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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6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3939
diff
changeset
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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.io.*; | |
| 28 import java.util.*; | |
| 29 import sun.jvm.hotspot.debugger.*; | |
| 30 import sun.jvm.hotspot.runtime.*; | |
| 31 import sun.jvm.hotspot.oops.*; | |
| 32 import sun.jvm.hotspot.types.*; | |
| 33 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3939
diff
changeset
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34 public class ciObject extends ciBaseObject { |
| 3939 | 35 static { |
| 36 VM.registerVMInitializedObserver(new Observer() { | |
| 37 public void update(Observable o, Object data) { | |
| 38 initialize(VM.getVM().getTypeDataBase()); | |
| 39 } | |
| 40 }); | |
| 41 } | |
| 42 | |
| 43 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { | |
| 44 Type type = db.lookupType("ciObject"); | |
| 45 klassField = type.getAddressField("_klass"); | |
| 46 handleField = type.getAddressField("_handle"); | |
| 47 } | |
| 48 | |
| 49 private static AddressField klassField; | |
| 50 private static AddressField handleField; | |
| 51 | |
| 52 public Oop getOop() { | |
| 53 OopHandle oh = handleField.getValue(getAddress()).getOopHandleAt(0); | |
| 54 return VM.getVM().getObjectHeap().newOop(oh); | |
| 55 } | |
| 56 | |
| 57 public ciObject(Address addr) { | |
| 58 super(addr); | |
| 59 } | |
| 60 | |
| 61 public void printOn(PrintStream out) { | |
| 62 getOop().printValueOn(out); | |
| 63 out.println(); | |
| 64 } | |
| 65 | |
| 66 public String toString() { | |
| 67 return getOop().toString(); | |
| 68 } | |
| 69 } |