Mercurial > hg > graal-compiler
comparison agent/src/share/classes/sun/jvm/hotspot/oops/MethodData.java @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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-1:000000000000 | 0:a61af66fc99e |
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1 /* | |
2 * Copyright 2000-2004 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 import sun.jvm.hotspot.utilities.*; | |
33 | |
34 // A MethodData provides interpreter profiling information | |
35 | |
36 public class MethodData extends Oop { | |
37 static { | |
38 VM.registerVMInitializedObserver(new Observer() { | |
39 public void update(Observable o, Object data) { | |
40 initialize(VM.getVM().getTypeDataBase()); | |
41 } | |
42 }); | |
43 } | |
44 | |
45 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { | |
46 Type type = db.lookupType("methodDataOopDesc"); | |
47 baseOffset = type.getSize(); | |
48 | |
49 size = new CIntField(type.getCIntegerField("_size"), 0); | |
50 method = new OopField(type.getOopField("_method"), 0); | |
51 // FIXME: add more fields and accessors | |
52 } | |
53 | |
54 MethodData(OopHandle handle, ObjectHeap heap) { | |
55 super(handle, heap); | |
56 } | |
57 | |
58 public boolean isMethodData() { return true; } | |
59 | |
60 private static long baseOffset; | |
61 private static CIntField size; | |
62 private static OopField method; | |
63 | |
64 public long getObjectSize() { | |
65 return alignObjectSize(size.getValue(this)); | |
66 } | |
67 | |
68 public Method getMethod() { | |
69 return (Method) method.getValue(this); | |
70 } | |
71 | |
72 public void printValueOn(PrintStream tty) { | |
73 Method m = getMethod(); | |
74 tty.print("MethodData for " + m.getName().asString() + m.getSignature().asString()); | |
75 } | |
76 | |
77 public void iterateFields(OopVisitor visitor, boolean doVMFields) { | |
78 super.iterateFields(visitor, doVMFields); | |
79 if (doVMFields) { | |
80 visitor.doOop(method, true); | |
81 visitor.doCInt(size, true); | |
82 } | |
83 } | |
84 } |