3939
|
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 *
|
7440
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
20 * or visit www.oracle.com if you need additional information or have any
|
|
21 * questions.
|
3939
|
22 *
|
|
23 */
|
|
24
|
|
25 package sun.jvm.hotspot.opto;
|
|
26
|
|
27 import java.util.*;
|
|
28 import java.io.PrintStream;
|
|
29 import sun.jvm.hotspot.debugger.*;
|
|
30 import sun.jvm.hotspot.runtime.*;
|
|
31 import sun.jvm.hotspot.oops.*;
|
|
32 import sun.jvm.hotspot.types.*;
|
|
33
|
|
34 public class MachSafePointNode extends MachReturnNode {
|
|
35 static {
|
|
36 VM.registerVMInitializedObserver(new Observer() {
|
|
37 public void update(Observable o, Object data) {
|
|
38 initialize(VM.getVM().getTypeDataBase());
|
|
39 }
|
|
40 });
|
|
41 }
|
|
42
|
|
43 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
|
|
44 Type type = db.lookupType("MachSafePointNode");
|
|
45 jvmsField = type.getAddressField("_jvms");
|
|
46 jvmadjField = new CIntField(type.getCIntegerField("_jvmadj"), 0);
|
|
47 }
|
|
48
|
|
49 private static AddressField jvmsField;
|
|
50 private static CIntField jvmadjField;
|
|
51
|
|
52 public MachSafePointNode(Address addr) {
|
|
53 super(addr);
|
|
54 }
|
|
55
|
|
56 public JVMState jvms() {
|
|
57 return JVMState.create(jvmsField.getValue(getAddress()));
|
|
58 }
|
|
59
|
|
60 public void dumpSpec(PrintStream out) {
|
|
61 try {
|
|
62 JVMState jvms = jvms();
|
|
63 if (jvms != null) out.print(" !");
|
|
64 if (jvms == null) out.print("empty jvms");
|
|
65 while (jvms != null) {
|
|
66 Method m = jvms.method().method();
|
|
67 int bci = jvms.bci();
|
|
68 out.print(" " + m.getMethodHolder().getName().asString().replace('/', '.') + "::" + m.getName().asString() + " @ bci:" + bci);
|
|
69 jvms = jvms.caller();
|
|
70 }
|
|
71 } catch (Exception e) {
|
|
72 out.print(e);
|
|
73 }
|
|
74 }
|
|
75 }
|