annotate agent/src/share/classes/sun/jvm/hotspot/debugger/cdbg/basic/x86/X86CFrame.java @ 1552:c18cbe5936b8

6941466: Oracle rebranding changes for Hotspot repositories Summary: Change all the Sun copyrights to Oracle copyright Reviewed-by: ohair
author trims
date Thu, 27 May 2010 19:08:38 -0700
parents a61af66fc99e
children b87e5a681416
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1 /*
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
2 * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load
duke
parents:
diff changeset
4 *
a61af66fc99e Initial load
duke
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load
duke
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load
duke
parents:
diff changeset
7 * published by the Free Software Foundation.
a61af66fc99e Initial load
duke
parents:
diff changeset
8 *
a61af66fc99e Initial load
duke
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load
duke
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load
duke
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load
duke
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load
duke
parents:
diff changeset
13 * accompanied this code).
a61af66fc99e Initial load
duke
parents:
diff changeset
14 *
a61af66fc99e Initial load
duke
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load
duke
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load
duke
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load
duke
parents:
diff changeset
18 *
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
21 * questions.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
22 *
a61af66fc99e Initial load
duke
parents:
diff changeset
23 */
a61af66fc99e Initial load
duke
parents:
diff changeset
24
a61af66fc99e Initial load
duke
parents:
diff changeset
25 package sun.jvm.hotspot.debugger.cdbg.basic.x86;
a61af66fc99e Initial load
duke
parents:
diff changeset
26
a61af66fc99e Initial load
duke
parents:
diff changeset
27 import sun.jvm.hotspot.debugger.*;
a61af66fc99e Initial load
duke
parents:
diff changeset
28 import sun.jvm.hotspot.debugger.cdbg.*;
a61af66fc99e Initial load
duke
parents:
diff changeset
29 import sun.jvm.hotspot.debugger.cdbg.basic.*;
a61af66fc99e Initial load
duke
parents:
diff changeset
30
a61af66fc99e Initial load
duke
parents:
diff changeset
31 /** Basic X86 frame functionality providing sender() functionality. */
a61af66fc99e Initial load
duke
parents:
diff changeset
32
a61af66fc99e Initial load
duke
parents:
diff changeset
33 public class X86CFrame extends BasicCFrame {
a61af66fc99e Initial load
duke
parents:
diff changeset
34 private Address ebp;
a61af66fc99e Initial load
duke
parents:
diff changeset
35 private Address pc;
a61af66fc99e Initial load
duke
parents:
diff changeset
36
a61af66fc99e Initial load
duke
parents:
diff changeset
37 private static final int ADDRESS_SIZE = 4;
a61af66fc99e Initial load
duke
parents:
diff changeset
38
a61af66fc99e Initial load
duke
parents:
diff changeset
39 /** Constructor for topmost frame */
a61af66fc99e Initial load
duke
parents:
diff changeset
40 public X86CFrame(CDebugger dbg, Address ebp, Address pc) {
a61af66fc99e Initial load
duke
parents:
diff changeset
41 super(dbg);
a61af66fc99e Initial load
duke
parents:
diff changeset
42 this.ebp = ebp;
a61af66fc99e Initial load
duke
parents:
diff changeset
43 this.pc = pc;
a61af66fc99e Initial load
duke
parents:
diff changeset
44 }
a61af66fc99e Initial load
duke
parents:
diff changeset
45
a61af66fc99e Initial load
duke
parents:
diff changeset
46 public CFrame sender() {
a61af66fc99e Initial load
duke
parents:
diff changeset
47 if (ebp == null) {
a61af66fc99e Initial load
duke
parents:
diff changeset
48 return null;
a61af66fc99e Initial load
duke
parents:
diff changeset
49 }
a61af66fc99e Initial load
duke
parents:
diff changeset
50
a61af66fc99e Initial load
duke
parents:
diff changeset
51 Address nextEBP = ebp.getAddressAt( 0 * ADDRESS_SIZE);
a61af66fc99e Initial load
duke
parents:
diff changeset
52 if (nextEBP == null) {
a61af66fc99e Initial load
duke
parents:
diff changeset
53 return null;
a61af66fc99e Initial load
duke
parents:
diff changeset
54 }
a61af66fc99e Initial load
duke
parents:
diff changeset
55 Address nextPC = ebp.getAddressAt( 1 * ADDRESS_SIZE);
a61af66fc99e Initial load
duke
parents:
diff changeset
56 if (nextPC == null) {
a61af66fc99e Initial load
duke
parents:
diff changeset
57 return null;
a61af66fc99e Initial load
duke
parents:
diff changeset
58 }
a61af66fc99e Initial load
duke
parents:
diff changeset
59 return new X86CFrame(dbg(), nextEBP, nextPC);
a61af66fc99e Initial load
duke
parents:
diff changeset
60 }
a61af66fc99e Initial load
duke
parents:
diff changeset
61
a61af66fc99e Initial load
duke
parents:
diff changeset
62 public Address pc() {
a61af66fc99e Initial load
duke
parents:
diff changeset
63 return pc;
a61af66fc99e Initial load
duke
parents:
diff changeset
64 }
a61af66fc99e Initial load
duke
parents:
diff changeset
65
a61af66fc99e Initial load
duke
parents:
diff changeset
66 public Address localVariableBase() {
a61af66fc99e Initial load
duke
parents:
diff changeset
67 return ebp;
a61af66fc99e Initial load
duke
parents:
diff changeset
68 }
a61af66fc99e Initial load
duke
parents:
diff changeset
69 }