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1 /*
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2 * Copyright 2002-2006 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.tools;
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26
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27 import sun.jvm.hotspot.debugger.*;
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28 import sun.jvm.hotspot.runtime.*;
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29 import sun.jvm.hotspot.oops.*;
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30
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31 /** Traverses and prints the stack traces for all Java threads in the
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32 * remote VM */
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33 public class StackTrace extends Tool {
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34 // in non-verbose mode pc, sp and methodOop are not printed
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35 public StackTrace(boolean v, boolean concurrentLocks) {
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36 this.verbose = v;
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37 this.concurrentLocks = concurrentLocks;
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38 }
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39
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40 public StackTrace() {
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41 this(true, true);
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42 }
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43
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44 public void run() {
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45 run(System.out);
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46 }
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47
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48 public void run(java.io.PrintStream tty) {
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49 // Ready to go with the database...
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50 try {
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51 // print deadlock information before stack trace
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52 DeadlockDetector.print(tty);
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53 } catch (Exception exp) {
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54 exp.printStackTrace();
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55 tty.println("Can't print deadlocks:" + exp.getMessage());
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56 }
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57
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58 try {
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59 ConcurrentLocksPrinter concLocksPrinter = null;
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60 if (concurrentLocks) {
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61 concLocksPrinter = new ConcurrentLocksPrinter();
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62 }
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63 Threads threads = VM.getVM().getThreads();
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64 int i = 1;
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65 for (JavaThread cur = threads.first(); cur != null; cur = cur.next(), i++) {
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66 if (cur.isJavaThread()) {
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67 Address sp = cur.getLastJavaSP();
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68 tty.print("Thread ");
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69 cur.printThreadIDOn(tty);
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70 tty.print(": (state = " + cur.getThreadState());
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71 if (verbose) {
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72 tty.println(", current Java SP = " + sp);
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73 }
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74 tty.println(')');
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75 try {
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76 for (JavaVFrame vf = cur.getLastJavaVFrameDbg(); vf != null; vf = vf.javaSender()) {
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77 Method method = vf.getMethod();
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78 tty.print(" - " + method.externalNameAndSignature() +
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79 " @bci=" + vf.getBCI());
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80
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81 int lineNumber = method.getLineNumberFromBCI(vf.getBCI());
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82 if (lineNumber != -1) {
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83 tty.print(", line=" + lineNumber);
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84 }
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85
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86 if (verbose) {
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87 Address pc = vf.getFrame().getPC();
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88 if (pc != null) {
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89 tty.print(", pc=" + pc);
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90 }
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91
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92 tty.print(", methodOop=" + method.getHandle());
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93 }
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94
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95 if (vf.isCompiledFrame()) {
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96 tty.print(" (Compiled frame");
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97 if (vf.isDeoptimized()) {
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98 tty.print(" [deoptimized]");
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99 }
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100 }
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101 if (vf.isInterpretedFrame()) {
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102 tty.print(" (Interpreted frame");
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103 }
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104 if (vf.mayBeImpreciseDbg()) {
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105 tty.print("; information may be imprecise");
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106 }
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107
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108 tty.println(")");
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109 }
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110 } catch (Exception e) {
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111 tty.println("Error occurred during stack walking:");
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112 e.printStackTrace();
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113 }
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114 tty.println();
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115 if (concurrentLocks) {
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116 concLocksPrinter.print(cur, tty);
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117 }
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118 tty.println();
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119 }
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120 }
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121 }
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122 catch (AddressException e) {
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123 System.err.println("Error accessing address 0x" + Long.toHexString(e.getAddress()));
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124 e.printStackTrace();
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125 }
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126 }
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127
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128 public static void main(String[] args) {
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129 StackTrace st = new StackTrace();
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130 st.start(args);
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131 st.stop();
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132 }
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133
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134 private boolean verbose;
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135 private boolean concurrentLocks;
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136 }
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