Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/oops/ConstantPoolKlass.java @ 113:ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv
Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
author | coleenp |
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date | Sun, 13 Apr 2008 17:43:42 -0400 |
parents | a61af66fc99e |
children | d1605aabd0a1 |
rev | line source |
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0 | 1 /* |
2 * Copyright 2000-2001 Sun Microsystems, Inc. All Rights Reserved. | |
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.oops; | |
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.types.*; | |
32 | |
33 // A ConstantPoolKlass is the klass of a ConstantPool | |
34 | |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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35 public class ConstantPoolKlass extends Klass { |
0 | 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("constantPoolKlass"); | |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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46 headerSize = type.getSize() + Oop.getHeaderSize(); |
0 | 47 } |
48 | |
49 ConstantPoolKlass(OopHandle handle, ObjectHeap heap) { | |
50 super(handle, heap); | |
51 } | |
52 | |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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53 public long getObjectSize() { return alignObjectSize(headerSize); } |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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54 |
0 | 55 public void printValueOn(PrintStream tty) { |
56 tty.print("ConstantPoolKlass"); | |
57 } | |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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58 |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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59 private static long headerSize; |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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60 } |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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61 |