Mercurial > hg > graal-jvmci-8

comparison agent/src/share/classes/sun/jvm/hotspot/runtime/x86/X86RicochetFrame.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.x86;
26
27 import java.util.*;
28 import sun.jvm.hotspot.debugger.*;
29 import sun.jvm.hotspot.runtime.*;
30 import sun.jvm.hotspot.types.*;
31
32 public class X86RicochetFrame extends VMObject {
33 static {
34 VM.registerVMInitializedObserver(new Observer() {
35 public void update(Observable o, Object data) {
36 initialize(VM.getVM().getTypeDataBase());
37 }
38 });
39 }
40
41 private static void initialize(TypeDataBase db) {
42 Type type = db.lookupType("MethodHandles::RicochetFrame");
43
44 senderLinkField = type.getAddressField("_sender_link");
45 savedArgsBaseField = type.getAddressField("_saved_args_base");
46 exactSenderSPField = type.getAddressField("_exact_sender_sp");
47 senderPCField = type.getAddressField("_sender_pc");
48 }
49
50 private static AddressField senderLinkField;
51 private static AddressField savedArgsBaseField;
52 private static AddressField exactSenderSPField;
53 private static AddressField senderPCField;
54
55 static X86RicochetFrame fromFrame(X86Frame f) {
56 return new X86RicochetFrame(f.getFP().addOffsetTo(- senderLinkField.getOffset()));
57 }
58
59 private X86RicochetFrame(Address addr) {
60 super(addr);
61 }
62
63 public Address senderLink() {
64 return senderLinkField.getValue(addr);
65 }
66 public Address senderLinkAddress() {
67 return addr.addOffsetTo(senderLinkField.getOffset());
68 }
69 public Address savedArgsBase() {
70 return savedArgsBaseField.getValue(addr);
71 }
72 public Address extendedSenderSP() {
73 return savedArgsBase();
74 }
75 public Address exactSenderSP() {
76 return exactSenderSPField.getValue(addr);
77 }
78 public Address senderPC() {
79 return senderPCField.getValue(addr);
80 }
81 }