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1 /*
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2 * Copyright 2002-2004 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.jcore;
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26
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27 import java.io.*;
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28 import sun.jvm.hotspot.memory.*;
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29 import sun.jvm.hotspot.oops.*;
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30 import sun.jvm.hotspot.debugger.*;
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31 import sun.jvm.hotspot.runtime.*;
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32 import sun.jvm.hotspot.tools.*;
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33
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34 public class ClassDump extends Tool {
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35 private ClassFilter classFilter;
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36 private String outputDirectory;
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37
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38 public void run() {
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39 // Ready to go with the database...
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40 try {
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41
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42 // load class filters
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43
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44 String filterClassName = System.getProperty("sun.jvm.hotspot.tools.jcore.filter");
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45 if (filterClassName != null) {
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46 try {
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47 Class filterClass = Class.forName(filterClassName);
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48 classFilter = (ClassFilter) filterClass.newInstance();
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49 } catch(Exception exp) {
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50 System.err.println("Warning: Can not create class filter!");
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51 }
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52 }
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53
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54 outputDirectory = System.getProperty("sun.jvm.hotspot.tools.jcore.outputDir");
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55 if (outputDirectory == null)
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56 outputDirectory = ".";
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57
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58 // walk through the system dictionary
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59 SystemDictionary dict = VM.getVM().getSystemDictionary();
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60 dict.classesDo(new SystemDictionary.ClassVisitor() {
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61 public void visit(Klass k) {
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62 if (k instanceof InstanceKlass) {
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63 try {
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64 dumpKlass((InstanceKlass) k);
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65 } catch (Exception e) {
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66 System.out.println(k.getName().asString());
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67 e.printStackTrace();
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68 }
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69 }
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70 }
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71 });
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72 }
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73 catch (AddressException e) {
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74 System.err.println("Error accessing address 0x"
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75 + Long.toHexString(e.getAddress()));
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76 e.printStackTrace();
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77 }
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78 }
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79
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80 public String getName() {
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81 return "jcore";
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82 }
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83
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84 private void dumpKlass(InstanceKlass kls) {
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85 if (classFilter != null && ! classFilter.canInclude(kls) ) {
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86 return;
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87 }
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88
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89 String klassName = kls.getName().asString();
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90 klassName = klassName.replace('/', File.separatorChar);
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91 int index = klassName.lastIndexOf(File.separatorChar);
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92 File dir = null;
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93 if (index != -1) {
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94 String dirName = klassName.substring(0, index);
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95 dir = new File(outputDirectory, dirName);
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96 } else {
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97 dir = new File(outputDirectory);
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98 }
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99
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100 dir.mkdirs();
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101 File f = new File(dir, klassName.substring(klassName.lastIndexOf(File.separatorChar) + 1)
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102 + ".class");
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103 try {
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104 f.createNewFile();
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105 OutputStream os = new BufferedOutputStream(new FileOutputStream(f));
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106 try {
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107 ClassWriter cw = new ClassWriter(kls, os);
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108 cw.write();
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109 } finally {
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110 os.close();
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111 }
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112 } catch(IOException exp) {
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113 exp.printStackTrace();
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114 }
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115 }
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116
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117 public static void main(String[] args) {
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118 ClassDump cd = new ClassDump();
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119 cd.start(args);
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120 cd.stop();
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121 }
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122 }
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