Mercurial > hg > truffle

comparison agent/src/share/classes/sun/jvm/hotspot/debugger/windows/amd64/WindowsAMD64CFrame.java @ 10302:78332b46e604

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6313816: SA: jstack -m fails on Win32 : UnalignedAddressException Reviewed-by: sla, poonam
author kevinw
date Thu, 16 May 2013 12:40:27 +0100
parents agent/src/share/classes/sun/jvm/hotspot/debugger/cdbg/basic/amd64/AMD64CFrame.java@b87e5a681416
children de6a9e811145
comparison
equal deleted inserted replaced
10301:17db82f22f1e 10302:78332b46e604
1 /*
2 * Copyright (c) 2003, 2012, 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.debugger.windows.amd64;
26
27 import sun.jvm.hotspot.debugger.*;
28 import sun.jvm.hotspot.debugger.amd64.*;
29 import sun.jvm.hotspot.debugger.cdbg.*;
30 import sun.jvm.hotspot.debugger.cdbg.basic.*;
31 import sun.jvm.hotspot.debugger.windbg.*;
32
33 public class WindowsAMD64CFrame extends BasicCFrame {
34 private Address rbp;
35 private Address pc;
36
37 private static final int ADDRESS_SIZE = 8;
38
39 /** Constructor for topmost frame */
40 public WindowsAMD64CFrame(WindbgDebugger dbg, Address rbp, Address pc) {
41 super(dbg.getCDebugger());
42 this.rbp = rbp;
43 this.pc = pc;
44 this.dbg = dbg;
45 }
46
47 public CFrame sender(ThreadProxy thread) {
48 AMD64ThreadContext context = (AMD64ThreadContext) thread.getContext();
49 Address rsp = context.getRegisterAsAddress(AMD64ThreadContext.RSP);
50
51 if ( (rbp == null) || rbp.lessThan(rsp) ) {
52 return null;
53 }
54
55 // Check alignment of rbp
56 if ( dbg.getAddressValue(rbp) % ADDRESS_SIZE != 0) {
57 return null;
58 }
59
60 Address nextRBP = rbp.getAddressAt( 0 * ADDRESS_SIZE);
61 if (nextRBP == null || nextRBP.lessThanOrEqual(rbp)) {
62 return null;
63 }
64 Address nextPC = rbp.getAddressAt( 1 * ADDRESS_SIZE);
65 if (nextPC == null) {
66 return null;
67 }
68 return new WindowsAMD64CFrame(dbg, nextRBP, nextPC);
69 }
70
71 public Address pc() {
72 return pc;
73 }
74
75 public Address localVariableBase() {
76 return rbp;
77 }
78
79 private WindbgDebugger dbg;
80 }