Mercurial > hg > truffle

annotate agent/src/share/classes/sun/jvm/hotspot/oops/ObjArray.java @ 8764:8552f0992748

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8008796: SA: Oop.iterateFields() should support CompressedKlassPointers again Summary: add a missing change from JDK-7054512 so that Oop.iterateFields() works with UseCompressedKlassPointers Reviewed-by: coleenp, roland Contributed-by: yunda.mly@taobao.com
author kmo
date Fri, 15 Mar 2013 22:07:42 -0700
parents c18cbe5936b8
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1 /*
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 196
diff changeset
2 * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load
duke
parents:
diff changeset
4 *
a61af66fc99e Initial load
duke
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load
duke
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load
duke
parents:
diff changeset
7 * published by the Free Software Foundation.
a61af66fc99e Initial load
duke
parents:
diff changeset
8 *
a61af66fc99e Initial load
duke
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load
duke
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load
duke
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load
duke
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load
duke
parents:
diff changeset
13 * accompanied this code).
a61af66fc99e Initial load
duke
parents:
diff changeset
14 *
a61af66fc99e Initial load
duke
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load
duke
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load
duke
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load
duke
parents:
diff changeset
18 *
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 196
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 196
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 196
diff changeset
21 * questions.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
22 *
a61af66fc99e Initial load
duke
parents:
diff changeset
23 */
a61af66fc99e Initial load
duke
parents:
diff changeset
24
a61af66fc99e Initial load
duke
parents:
diff changeset
25 package sun.jvm.hotspot.oops;
a61af66fc99e Initial load
duke
parents:
diff changeset
26
a61af66fc99e Initial load
duke
parents:
diff changeset
27 import java.io.*;
a61af66fc99e Initial load
duke
parents:
diff changeset
28 import java.util.*;
a61af66fc99e Initial load
duke
parents:
diff changeset
29 import sun.jvm.hotspot.debugger.*;
a61af66fc99e Initial load
duke
parents:
diff changeset
30 import sun.jvm.hotspot.runtime.*;
a61af66fc99e Initial load
duke
parents:
diff changeset
31 import sun.jvm.hotspot.types.*;
a61af66fc99e Initial load
duke
parents:
diff changeset
32
a61af66fc99e Initial load
duke
parents:
diff changeset
33 // An ObjArray is an array containing oops
a61af66fc99e Initial load
duke
parents:
diff changeset
34
a61af66fc99e Initial load
duke
parents:
diff changeset
35 public class ObjArray extends Array {
a61af66fc99e Initial load
duke
parents:
diff changeset
36 static {
a61af66fc99e Initial load
duke
parents:
diff changeset
37 VM.registerVMInitializedObserver(new Observer() {
a61af66fc99e Initial load
duke
parents:
diff changeset
38 public void update(Observable o, Object data) {
a61af66fc99e Initial load
duke
parents:
diff changeset
39 initialize(VM.getVM().getTypeDataBase());
a61af66fc99e Initial load
duke
parents:
diff changeset
40 }
a61af66fc99e Initial load
duke
parents:
diff changeset
41 });
a61af66fc99e Initial load
duke
parents:
diff changeset
42 }
a61af66fc99e Initial load
duke
parents:
diff changeset
43
a61af66fc99e Initial load
duke
parents:
diff changeset
44 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
a61af66fc99e Initial load
duke
parents:
diff changeset
45 Type type = db.lookupType("objArrayOopDesc");
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
46 elementSize = VM.getVM().getHeapOopSize();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
47 }
a61af66fc99e Initial load
duke
parents:
diff changeset
48
a61af66fc99e Initial load
duke
parents:
diff changeset
49 ObjArray(OopHandle handle, ObjectHeap heap) {
a61af66fc99e Initial load
duke
parents:
diff changeset
50 super(handle, heap);
a61af66fc99e Initial load
duke
parents:
diff changeset
51 }
a61af66fc99e Initial load
duke
parents:
diff changeset
52
a61af66fc99e Initial load
duke
parents:
diff changeset
53 public boolean isObjArray() { return true; }
a61af66fc99e Initial load
duke
parents:
diff changeset
54
a61af66fc99e Initial load
duke
parents:
diff changeset
55 private static long elementSize;
a61af66fc99e Initial load
duke
parents:
diff changeset
56
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
57 public OopHandle getOopHandleAt(long index) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
58 long offset = baseOffsetInBytes(BasicType.T_OBJECT) + (index * elementSize);
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
59 if (VM.getVM().isCompressedOopsEnabled()) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
60 return getHandle().getCompOopHandleAt(offset);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
61 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
62 return getHandle().getOopHandleAt(offset);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
63 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
64 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
65
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
66 public Oop getObjAt(long index) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
67 return getHeap().newOop(getOopHandleAt(index));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
68 }
a61af66fc99e Initial load
duke
parents:
diff changeset
69
a61af66fc99e Initial load
duke
parents:
diff changeset
70 public void printValueOn(PrintStream tty) {
a61af66fc99e Initial load
duke
parents:
diff changeset
71 tty.print("ObjArray");
a61af66fc99e Initial load
duke
parents:
diff changeset
72 }
a61af66fc99e Initial load
duke
parents:
diff changeset
73
a61af66fc99e Initial load
duke
parents:
diff changeset
74 public void iterateFields(OopVisitor visitor, boolean doVMFields) {
a61af66fc99e Initial load
duke
parents:
diff changeset
75 super.iterateFields(visitor, doVMFields);
a61af66fc99e Initial load
duke
parents:
diff changeset
76 int length = (int) getLength();
a61af66fc99e Initial load
duke
parents:
diff changeset
77 long baseOffset = baseOffsetInBytes(BasicType.T_OBJECT);
a61af66fc99e Initial load
duke
parents:
diff changeset
78 for (int index = 0; index < length; index++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
79 long offset = baseOffset + (index * elementSize);
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
80 OopField field;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
81 if (VM.getVM().isCompressedOopsEnabled()) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
82 field = new NarrowOopField(new IndexableFieldIdentifier(index), offset, false);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
83 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
84 field = new OopField(new IndexableFieldIdentifier(index), offset, false);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
85 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
86 visitor.doOop(field, false);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
87 }
a61af66fc99e Initial load
duke
parents:
diff changeset
88 }
a61af66fc99e Initial load
duke
parents:
diff changeset
89 }