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comparison agent/src/share/classes/sun/jvm/hotspot/tools/StackTrace.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2002-2006 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.tools;
26
27 import sun.jvm.hotspot.debugger.*;
28 import sun.jvm.hotspot.runtime.*;
29 import sun.jvm.hotspot.oops.*;
30
31 /** Traverses and prints the stack traces for all Java threads in the
32 * remote VM */
33 public class StackTrace extends Tool {
34 // in non-verbose mode pc, sp and methodOop are not printed
35 public StackTrace(boolean v, boolean concurrentLocks) {
36 this.verbose = v;
37 this.concurrentLocks = concurrentLocks;
38 }
39
40 public StackTrace() {
41 this(true, true);
42 }
43
44 public void run() {
45 run(System.out);
46 }
47
48 public void run(java.io.PrintStream tty) {
49 // Ready to go with the database...
50 try {
51 // print deadlock information before stack trace
52 DeadlockDetector.print(tty);
53 } catch (Exception exp) {
54 exp.printStackTrace();
55 tty.println("Can't print deadlocks:" + exp.getMessage());
56 }
57
58 try {
59 ConcurrentLocksPrinter concLocksPrinter = null;
60 if (concurrentLocks) {
61 concLocksPrinter = new ConcurrentLocksPrinter();
62 }
63 Threads threads = VM.getVM().getThreads();
64 int i = 1;
65 for (JavaThread cur = threads.first(); cur != null; cur = cur.next(), i++) {
66 if (cur.isJavaThread()) {
67 Address sp = cur.getLastJavaSP();
68 tty.print("Thread ");
69 cur.printThreadIDOn(tty);
70 tty.print(": (state = " + cur.getThreadState());
71 if (verbose) {
72 tty.println(", current Java SP = " + sp);
73 }
74 tty.println(')');
75 try {
76 for (JavaVFrame vf = cur.getLastJavaVFrameDbg(); vf != null; vf = vf.javaSender()) {
77 Method method = vf.getMethod();
78 tty.print(" - " + method.externalNameAndSignature() +
79 " @bci=" + vf.getBCI());
80
81 int lineNumber = method.getLineNumberFromBCI(vf.getBCI());
82 if (lineNumber != -1) {
83 tty.print(", line=" + lineNumber);
84 }
85
86 if (verbose) {
87 Address pc = vf.getFrame().getPC();
88 if (pc != null) {
89 tty.print(", pc=" + pc);
90 }
91
92 tty.print(", methodOop=" + method.getHandle());
93 }
94
95 if (vf.isCompiledFrame()) {
96 tty.print(" (Compiled frame");
97 if (vf.isDeoptimized()) {
98 tty.print(" [deoptimized]");
99 }
100 }
101 if (vf.isInterpretedFrame()) {
102 tty.print(" (Interpreted frame");
103 }
104 if (vf.mayBeImpreciseDbg()) {
105 tty.print("; information may be imprecise");
106 }
107
108 tty.println(")");
109 }
110 } catch (Exception e) {
111 tty.println("Error occurred during stack walking:");
112 e.printStackTrace();
113 }
114 tty.println();
115 if (concurrentLocks) {
116 concLocksPrinter.print(cur, tty);
117 }
118 tty.println();
119 }
120 }
121 }
122 catch (AddressException e) {
123 System.err.println("Error accessing address 0x" + Long.toHexString(e.getAddress()));
124 e.printStackTrace();
125 }
126 }
127
128 public static void main(String[] args) {
129 StackTrace st = new StackTrace();
130 st.start(args);
131 st.stop();
132 }
133
134 private boolean verbose;
135 private boolean concurrentLocks;
136 }