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comparison agent/src/share/classes/sun/jvm/hotspot/opto/JVMState.java @ 3939:f6f3bb0ee072

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7088955: add C2 IR support to the SA Reviewed-by: kvn
author never
date Sun, 11 Sep 2011 14:48:24 -0700
parents
children da91efe96a93
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3938:e6b1331a51d2 3939:f6f3bb0ee072
1 /*
2 * Copyright (c) 2011, Oracle and/or its affiliates. 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.opto;
26
27 import java.io.PrintStream;
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.ci.*;
33 import sun.jvm.hotspot.types.*;
34
35 public class JVMState extends VMObject {
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("JVMState");
46 mapField = type.getAddressField("_map");
47 methodField = type.getAddressField("_method");
48 bciField = new CIntField(type.getCIntegerField("_bci"), 0);
49 spField = new CIntField(type.getCIntegerField("_sp"), 0);
50 endoffField = new CIntField(type.getCIntegerField("_endoff"), 0);
51 try {
52 scloffField = new CIntField(type.getCIntegerField("_scloff"), 0);
53 } catch (Exception e) {
54 }
55 monoffField = new CIntField(type.getCIntegerField("_monoff"), 0);
56 stkoffField = new CIntField(type.getCIntegerField("_stkoff"), 0);
57 locoffField = new CIntField(type.getCIntegerField("_locoff"), 0);
58 depthField = new CIntField(type.getCIntegerField("_depth"), 0);
59 callerField = type.getAddressField("_caller");
60 }
61
62 private static AddressField mapField;
63 private static AddressField methodField;
64 private static CIntField bciField;
65 private static CIntField spField;
66 private static CIntField endoffField;
67 private static CIntField scloffField;
68 private static CIntField monoffField;
69 private static CIntField stkoffField;
70 private static CIntField locoffField;
71 private static CIntField depthField;
72 private static AddressField callerField;
73
74 public static JVMState create(Address addr) {
75 if (addr == null) return null;
76 return new JVMState(addr);
77 }
78
79 public JVMState(Address addr) {
80 super(addr);
81 }
82
83 public ciMethod method() {
84 return (ciMethod) ciObjectFactory.get(methodField.getValue(getAddress()));
85 }
86
87 public int bci() {
88 return (int)bciField.getValue(getAddress());
89 }
90
91 public JVMState caller() {
92 return create(callerField.getValue(getAddress()));
93 }
94
95 public void dumpSpec(PrintStream out) {
96 ciMethod m = method();
97 if (m != null) {
98 Method meth = m.method();
99 out.print(" " + meth.getMethodHolder().getName().asString().replace('/', '.') + "::" +
100 meth.getName().asString() + " @ bci:" + bci());
101 } else {
102 out.print(" runtime stub");
103 }
104 if (caller() != null) caller().dumpSpec(out);
105 }
106 }