0
|
1 /*
|
|
2 * Copyright 2000-2003 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
|
20 * CA 95054 USA or visit www.sun.com if you need additional information or
|
|
21 * have any questions.
|
|
22 *
|
|
23 */
|
|
24
|
|
25 package sun.jvm.hotspot.runtime.solaris_x86;
|
|
26
|
|
27 import java.io.*;
|
|
28 import java.util.*;
|
|
29 import sun.jvm.hotspot.debugger.*;
|
|
30 import sun.jvm.hotspot.debugger.x86.*;
|
|
31 import sun.jvm.hotspot.runtime.*;
|
|
32 import sun.jvm.hotspot.runtime.x86.*;
|
|
33 import sun.jvm.hotspot.types.*;
|
|
34 import sun.jvm.hotspot.utilities.*;
|
|
35
|
|
36 /** Placeholder for now to allow us to start the SA without support
|
|
37 for stack traces */
|
|
38
|
|
39 public class SolarisX86JavaThreadPDAccess implements JavaThreadPDAccess {
|
|
40 private static AddressField lastJavaFPField;
|
|
41 private static AddressField osThreadField;
|
|
42 private static AddressField baseOfStackPointerField;
|
|
43
|
|
44 // Field from OSThread
|
|
45 private static CIntegerField osThreadThreadIDField;
|
|
46
|
|
47 // This is currently unneeded but is being kept in case we change
|
|
48 // the currentFrameGuess algorithm
|
|
49 private static final long GUESS_SCAN_RANGE = 128 * 1024;
|
|
50
|
|
51
|
|
52 static {
|
|
53 VM.registerVMInitializedObserver(new Observer() {
|
|
54 public void update(Observable o, Object data) {
|
|
55 initialize(VM.getVM().getTypeDataBase());
|
|
56 }
|
|
57 });
|
|
58 }
|
|
59
|
|
60 private static synchronized void initialize(TypeDataBase db) {
|
|
61 Type type = db.lookupType("JavaThread");
|
|
62 Type anchorType = db.lookupType("JavaFrameAnchor");
|
|
63
|
|
64 lastJavaFPField = anchorType.getAddressField("_last_Java_fp");
|
|
65 osThreadField = type.getAddressField("_osthread");
|
|
66
|
|
67 type = db.lookupType("OSThread");
|
|
68 osThreadThreadIDField = type.getCIntegerField("_thread_id");
|
|
69 }
|
|
70
|
|
71 public Address getLastJavaFP(Address addr) {
|
|
72 return lastJavaFPField.getValue(addr.addOffsetTo(sun.jvm.hotspot.runtime.JavaThread.getAnchorField().getOffset()));
|
|
73 }
|
|
74
|
|
75 public Address getLastJavaPC(Address addr) {
|
|
76 return null;
|
|
77 }
|
|
78
|
|
79 public Address getBaseOfStackPointer(Address addr) {
|
|
80 return null;
|
|
81 }
|
|
82
|
|
83 public Frame getLastFramePD(JavaThread thread, Address addr) {
|
|
84 Address fp = thread.getLastJavaFP();
|
|
85 if (fp == null) {
|
|
86 return null; // no information
|
|
87 }
|
|
88 Address pc = thread.getLastJavaPC();
|
|
89 if ( pc != null ) {
|
|
90 return new X86Frame(thread.getLastJavaSP(), fp, pc);
|
|
91 } else {
|
|
92 return new X86Frame(thread.getLastJavaSP(), fp);
|
|
93 }
|
|
94 }
|
|
95
|
|
96 public RegisterMap newRegisterMap(JavaThread thread, boolean updateMap) {
|
|
97 return new X86RegisterMap(thread, updateMap);
|
|
98 }
|
|
99
|
|
100 public Frame getCurrentFrameGuess(JavaThread thread, Address addr) {
|
|
101 ThreadProxy t = getThreadProxy(addr);
|
|
102 X86ThreadContext context = (X86ThreadContext) t.getContext();
|
|
103 X86CurrentFrameGuess guesser = new X86CurrentFrameGuess(context, thread);
|
|
104 if (!guesser.run(GUESS_SCAN_RANGE)) {
|
|
105 return null;
|
|
106 }
|
|
107 if (guesser.getPC() == null) {
|
|
108 return new X86Frame(guesser.getSP(), guesser.getFP());
|
|
109 } else {
|
|
110 return new X86Frame(guesser.getSP(), guesser.getFP(), guesser.getPC());
|
|
111 }
|
|
112 }
|
|
113
|
|
114
|
|
115 public void printThreadIDOn(Address addr, PrintStream tty) {
|
|
116 tty.print(getThreadProxy(addr));
|
|
117 }
|
|
118
|
|
119
|
|
120 public void printInfoOn(Address threadAddr, PrintStream tty) {
|
|
121 }
|
|
122
|
|
123 public Address getLastSP(Address addr) {
|
|
124 ThreadProxy t = getThreadProxy(addr);
|
|
125 X86ThreadContext context = (X86ThreadContext) t.getContext();
|
|
126 return context.getRegisterAsAddress(X86ThreadContext.ESP);
|
|
127 }
|
|
128
|
|
129 public ThreadProxy getThreadProxy(Address addr) {
|
|
130 // Fetch the OSThread (for now and for simplicity, not making a
|
|
131 // separate "OSThread" class in this package)
|
|
132 Address osThreadAddr = osThreadField.getValue(addr);
|
|
133 // Get the address of the thread ID from the OSThread
|
|
134 Address tidAddr = osThreadAddr.addOffsetTo(osThreadThreadIDField.getOffset());
|
|
135
|
|
136 JVMDebugger debugger = VM.getVM().getDebugger();
|
|
137 return debugger.getThreadForIdentifierAddress(tidAddr);
|
|
138 }
|
|
139
|
|
140 }
|