Mercurial > hg > truffle

annotate agent/src/share/classes/sun/jvm/hotspot/oops/java_lang_Class.java @ 2411:63997f575155

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue Reviewed-by: kvn, dcubed
author never
date Wed, 30 Mar 2011 07:47:19 -0700
parents
children e6b1331a51d2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2411
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
1 /*
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
4 *
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
7 * published by the Free Software Foundation.
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
8 *
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
13 * accompanied this code).
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
14 *
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
18 *
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
21 * questions.
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
22 *
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
23 */
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
24
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
25 package sun.jvm.hotspot.oops;
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
26
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
27 import java.util.*;
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
28
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
29 import sun.jvm.hotspot.debugger.*;
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
30 import sun.jvm.hotspot.memory.*;
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
31 import sun.jvm.hotspot.runtime.*;
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
32 import sun.jvm.hotspot.types.Type;
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
33 import sun.jvm.hotspot.types.TypeDataBase;
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
34 import sun.jvm.hotspot.utilities.*;
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
35 import sun.jvm.hotspot.jdi.JVMTIThreadState;
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
36
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
37 /** A utility class encapsulating useful oop operations */
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
38
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
39 // initialize fields for java.lang.Class
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
40 public class java_lang_Class {
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
41
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
42 // java.lang.Class fields
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
43 static OopField klassField;
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
44 static IntField oopSizeField;
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
45
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
46 static {
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
47 VM.registerVMInitializedObserver(new Observer() {
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
48 public void update(Observable o, Object data) {
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
49 initialize(VM.getVM().getTypeDataBase());
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
50 }
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
51 });
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
52 }
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
53
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
54 private static synchronized void initialize(TypeDataBase db) {
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
55 // klass and oop_size are HotSpot magic fields and hence we can't
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
56 // find them from InstanceKlass for java.lang.Class.
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
57 Type jlc = db.lookupType("java_lang_Class");
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
58 int klassOffset = (int) jlc.getCIntegerField("klass_offset").getValue();
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
59 if (VM.getVM().isCompressedOopsEnabled()) {
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
60 klassField = new NarrowOopField(new NamedFieldIdentifier("klass"), klassOffset, true);
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
61 } else {
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
62 klassField = new OopField(new NamedFieldIdentifier("klass"), klassOffset, true);
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
63 }
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
64 int oopSizeOffset = (int) jlc.getCIntegerField("oop_size_offset").getValue();
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
65 oopSizeField = new IntField(new NamedFieldIdentifier("oop_size"), oopSizeOffset, true);
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
66 }
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
67
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
68 /** get klassOop field at offset hc_klass_offset from a java.lang.Class object */
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
69 public static Klass asKlass(Oop aClass) {
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
70 return (Klass) java_lang_Class.klassField.getValue(aClass);
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
71 }
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
72
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
73 /** get oop_size field at offset oop_size_offset from a java.lang.Class object */
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
74 public static long getOopSize(Oop aClass) {
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
75 return java_lang_Class.oopSizeField.getValue(aClass);
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
76 }
63997f575155 7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
diff changeset
77 }