Mercurial > hg > truffle

comparison agent/src/share/classes/sun/jvm/hotspot/runtime/sparc/SPARCRicochetFrame.java @ 3908:7588156f5cf9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244) Reviewed-by: kvn
author never
date Mon, 05 Sep 2011 17:09:05 -0700
parents
children
comparison
equal deleted inserted replaced
3907:7b5c767f229c 3908:7588156f5cf9
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 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.
22 *
23 */
24
25 package sun.jvm.hotspot.runtime.sparc;
26
27 import java.util.*;
28 import sun.jvm.hotspot.asm.sparc.SPARCRegister;
29 import sun.jvm.hotspot.asm.sparc.SPARCRegisters;
30 import sun.jvm.hotspot.debugger.*;
31 import sun.jvm.hotspot.runtime.*;
32 import sun.jvm.hotspot.types.*;
33
34 public class SPARCRicochetFrame {
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 SPARCFrame frame;
44
45 private static void initialize(TypeDataBase db) {
46 // Type type = db.lookupType("MethodHandles::RicochetFrame");
47
48 }
49
50 static SPARCRicochetFrame fromFrame(SPARCFrame f) {
51 return new SPARCRicochetFrame(f);
52 }
53
54 private SPARCRicochetFrame(SPARCFrame f) {
55 frame = f;
56 }
57
58 private Address registerValue(SPARCRegister reg) {
59 return frame.getSP().addOffsetTo(reg.spOffsetInSavedWindow()).getAddressAt(0);
60 }
61
62 public Address savedArgsBase() {
63 return registerValue(SPARCRegisters.L4);
64 }
65 public Address exactSenderSP() {
66 return registerValue(SPARCRegisters.I5);
67 }
68 public Address senderLink() {
69 return frame.getSenderSP();
70 }
71 public Address senderPC() {
72 return frame.getSenderPC();
73 }
74 public Address extendedSenderSP() {
75 return savedArgsBase();
76 }
77 }