Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/CommandProcessor.java @ 17726:085b304a1cc5
8027754: Enable loop optimizations for loops with MathExact inside
Reviewed-by: kvn, iveresov
author | rbackman |
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date | Thu, 23 Jan 2014 12:08:28 +0100 |
parents | 55fb97c4c58d |
children | 4ca6dc0799b6 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot; | |
26 | |
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27 import java.io.BufferedOutputStream; |
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28 import java.io.BufferedReader; |
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29 import java.io.ByteArrayOutputStream; |
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30 import java.io.FileInputStream; |
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31 import java.io.FileOutputStream; |
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32 import java.io.IOException; |
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33 import java.io.InputStreamReader; |
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34 import java.io.PrintStream; |
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35 import java.util.ArrayList; |
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36 import java.util.Arrays; |
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37 import java.util.Comparator; |
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38 import java.util.HashMap; |
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39 import java.util.HashSet; |
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40 import java.util.Iterator; |
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41 import java.util.Stack; |
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42 import java.util.regex.Matcher; |
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43 import java.util.regex.Pattern; |
0 | 44 |
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45 import sun.jvm.hotspot.ci.ciEnv; |
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46 import sun.jvm.hotspot.code.CodeBlob; |
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47 import sun.jvm.hotspot.code.CodeCacheVisitor; |
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48 import sun.jvm.hotspot.code.NMethod; |
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49 import sun.jvm.hotspot.debugger.Address; |
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50 import sun.jvm.hotspot.debugger.OopHandle; |
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51 import sun.jvm.hotspot.memory.SymbolTable; |
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52 import sun.jvm.hotspot.memory.SystemDictionary; |
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53 import sun.jvm.hotspot.memory.Universe; |
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54 import sun.jvm.hotspot.oops.DefaultHeapVisitor; |
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55 import sun.jvm.hotspot.oops.HeapVisitor; |
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56 import sun.jvm.hotspot.oops.InstanceKlass; |
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57 import sun.jvm.hotspot.oops.Klass; |
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58 import sun.jvm.hotspot.oops.Metadata; |
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59 import sun.jvm.hotspot.oops.Method; |
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60 import sun.jvm.hotspot.oops.MethodData; |
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61 import sun.jvm.hotspot.oops.Oop; |
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62 import sun.jvm.hotspot.oops.RawHeapVisitor; |
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63 import sun.jvm.hotspot.oops.Symbol; |
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64 import sun.jvm.hotspot.oops.UnknownOopException; |
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65 import sun.jvm.hotspot.opto.Compile; |
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66 import sun.jvm.hotspot.opto.InlineTree; |
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67 import sun.jvm.hotspot.runtime.CompiledVFrame; |
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68 import sun.jvm.hotspot.runtime.CompilerThread; |
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69 import sun.jvm.hotspot.runtime.JavaThread; |
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70 import sun.jvm.hotspot.runtime.JavaVFrame; |
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71 import sun.jvm.hotspot.runtime.Threads; |
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72 import sun.jvm.hotspot.runtime.VM; |
0 | 73 import sun.jvm.hotspot.tools.ObjectHistogram; |
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74 import sun.jvm.hotspot.tools.PMap; |
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75 import sun.jvm.hotspot.tools.PStack; |
0 | 76 import sun.jvm.hotspot.tools.StackTrace; |
3939 | 77 import sun.jvm.hotspot.tools.jcore.ClassDump; |
78 import sun.jvm.hotspot.tools.jcore.ClassFilter; | |
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79 import sun.jvm.hotspot.types.CIntegerType; |
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80 import sun.jvm.hotspot.types.Field; |
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81 import sun.jvm.hotspot.types.Type; |
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82 import sun.jvm.hotspot.types.basic.BasicType; |
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83 import sun.jvm.hotspot.ui.classbrowser.HTMLGenerator; |
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84 import sun.jvm.hotspot.ui.tree.CTypeTreeNodeAdapter; |
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85 import sun.jvm.hotspot.ui.tree.OopTreeNodeAdapter; |
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86 import sun.jvm.hotspot.ui.tree.SimpleTreeNode; |
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87 import sun.jvm.hotspot.utilities.AddressOps; |
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88 import sun.jvm.hotspot.utilities.Assert; |
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89 import sun.jvm.hotspot.utilities.HeapProgressThunk; |
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90 import sun.jvm.hotspot.utilities.LivenessPathElement; |
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91 import sun.jvm.hotspot.utilities.MethodArray; |
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92 import sun.jvm.hotspot.utilities.ObjectReader; |
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93 import sun.jvm.hotspot.utilities.PointerFinder; |
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94 import sun.jvm.hotspot.utilities.PointerLocation; |
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95 import sun.jvm.hotspot.utilities.ReversePtrs; |
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96 import sun.jvm.hotspot.utilities.ReversePtrsAnalysis; |
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97 import sun.jvm.hotspot.utilities.RobustOopDeterminator; |
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98 import sun.jvm.hotspot.utilities.SystemDictionaryHelper; |
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99 import sun.jvm.hotspot.utilities.soql.JSJavaFactory; |
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100 import sun.jvm.hotspot.utilities.soql.JSJavaFactoryImpl; |
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101 import sun.jvm.hotspot.utilities.soql.JSJavaScriptEngine; |
0 | 102 |
103 public class CommandProcessor { | |
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104 |
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105 volatile boolean quit; |
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106 |
0 | 107 public abstract static class DebuggerInterface { |
108 public abstract HotSpotAgent getAgent(); | |
109 public abstract boolean isAttached(); | |
110 public abstract void attach(String pid); | |
111 public abstract void attach(String java, String core); | |
112 public abstract void detach(); | |
113 public abstract void reattach(); | |
114 } | |
115 | |
3939 | 116 public static class BootFilter implements ClassFilter { |
117 public boolean canInclude(InstanceKlass kls) { | |
118 return kls.getClassLoader() == null; | |
119 } | |
120 } | |
121 | |
122 public static class NonBootFilter implements ClassFilter { | |
123 private HashMap emitted = new HashMap(); | |
124 public boolean canInclude(InstanceKlass kls) { | |
125 if (kls.getClassLoader() == null) return false; | |
126 if (emitted.get(kls.getName()) != null) { | |
127 // Since multiple class loaders are being shoved | |
128 // together duplicate classes are a possibilty. For | |
129 // now just ignore them. | |
130 return false; | |
131 } | |
132 emitted.put(kls.getName(), kls); | |
133 return true; | |
134 } | |
135 } | |
136 | |
0 | 137 static class Tokens { |
138 final String input; | |
139 int i; | |
140 String[] tokens; | |
141 int length; | |
142 | |
143 String[] splitWhitespace(String cmd) { | |
144 String[] t = cmd.split("\\s"); | |
145 if (t.length == 1 && t[0].length() == 0) { | |
146 return new String[0]; | |
147 } | |
148 return t; | |
149 } | |
150 | |
151 void add(String s, ArrayList t) { | |
152 if (s.length() > 0) { | |
153 t.add(s); | |
154 } | |
155 } | |
156 | |
157 Tokens(String cmd) { | |
158 input = cmd; | |
159 | |
160 // check for quoting | |
161 int quote = cmd.indexOf('"'); | |
162 ArrayList t = new ArrayList(); | |
163 if (quote != -1) { | |
164 while (cmd.length() > 0) { | |
165 if (quote != -1) { | |
166 int endquote = cmd.indexOf('"', quote + 1); | |
167 if (endquote == -1) { | |
168 throw new RuntimeException("mismatched quotes: " + input); | |
169 } | |
170 | |
171 String before = cmd.substring(0, quote).trim(); | |
172 String quoted = cmd.substring(quote + 1, endquote); | |
173 cmd = cmd.substring(endquote + 1).trim(); | |
174 if (before.length() > 0) { | |
175 String[] w = splitWhitespace(before); | |
176 for (int i = 0; i < w.length; i++) { | |
177 add(w[i], t); | |
178 } | |
179 } | |
180 add(quoted, t); | |
181 quote = cmd.indexOf('"'); | |
182 } else { | |
183 String[] w = splitWhitespace(cmd); | |
184 for (int i = 0; i < w.length; i++) { | |
185 add(w[i], t); | |
186 } | |
187 cmd = ""; | |
188 | |
189 } | |
190 } | |
191 } else { | |
192 String[] w = splitWhitespace(cmd); | |
193 for (int i = 0; i < w.length; i++) { | |
194 add(w[i], t); | |
195 } | |
196 } | |
197 tokens = (String[])t.toArray(new String[0]); | |
198 i = 0; | |
199 length = tokens.length; | |
200 | |
201 //for (int i = 0; i < tokens.length; i++) { | |
202 // System.out.println("\"" + tokens[i] + "\""); | |
203 //} | |
204 } | |
205 | |
206 String nextToken() { | |
207 return tokens[i++]; | |
208 } | |
209 boolean hasMoreTokens() { | |
210 return i < length; | |
211 } | |
212 int countTokens() { | |
213 return length - i; | |
214 } | |
215 void trim(int n) { | |
216 if (length >= n) { | |
217 length -= n; | |
218 } else { | |
219 throw new IndexOutOfBoundsException(String.valueOf(n)); | |
220 } | |
221 } | |
222 String join(String sep) { | |
223 StringBuffer result = new StringBuffer(); | |
224 for (int w = i; w < length; w++) { | |
225 result.append(tokens[w]); | |
226 if (w + 1 < length) { | |
227 result.append(sep); | |
228 } | |
229 } | |
230 return result.toString(); | |
231 } | |
232 | |
233 String at(int i) { | |
234 if (i < 0 || i >= length) { | |
235 throw new IndexOutOfBoundsException(String.valueOf(i)); | |
236 } | |
237 return tokens[i]; | |
238 } | |
239 } | |
240 | |
241 | |
242 abstract class Command { | |
243 Command(String n, String u, boolean ok) { | |
244 name = n; | |
245 usage = u; | |
246 okIfDisconnected = ok; | |
247 } | |
248 | |
249 Command(String n, boolean ok) { | |
250 name = n; | |
251 usage = n; | |
252 okIfDisconnected = ok; | |
253 } | |
254 | |
255 final String name; | |
256 final String usage; | |
257 final boolean okIfDisconnected; | |
258 abstract void doit(Tokens t); | |
259 void usage() { | |
260 out.println("Usage: " + usage); | |
261 } | |
262 | |
263 void printOopValue(Oop oop) { | |
264 if (oop != null) { | |
265 Klass k = oop.getKlass(); | |
266 Symbol s = k.getName(); | |
267 if (s != null) { | |
268 out.print("Oop for " + s.asString() + " @ "); | |
269 } else { | |
270 out.print("Oop @ "); | |
271 } | |
272 Oop.printOopAddressOn(oop, out); | |
273 } else { | |
274 out.print("null"); | |
275 } | |
276 } | |
277 | |
278 void printNode(SimpleTreeNode node) { | |
279 int count = node.getChildCount(); | |
280 for (int i = 0; i < count; i++) { | |
281 try { | |
282 SimpleTreeNode field = node.getChild(i); | |
283 if (field instanceof OopTreeNodeAdapter) { | |
284 out.print(field); | |
285 out.print(" "); | |
286 printOopValue(((OopTreeNodeAdapter)field).getOop()); | |
287 out.println(); | |
288 } else { | |
289 out.println(field); | |
290 } | |
291 } catch (Exception e) { | |
292 out.println(); | |
293 out.println("Error: " + e); | |
294 if (verboseExceptions) { | |
295 e.printStackTrace(out); | |
296 } | |
297 } | |
298 } | |
299 } | |
300 } | |
301 | |
302 void quote(String s) { | |
303 if (s.indexOf(" ") == -1) { | |
304 out.print(s); | |
305 } else { | |
306 out.print("\""); | |
307 out.print(s); | |
308 out.print("\""); | |
309 } | |
310 } | |
311 | |
312 void dumpType(Type type) { | |
313 out.print("type "); | |
314 quote(type.getName()); | |
315 out.print(" "); | |
316 if (type.getSuperclass() != null) { | |
317 quote(type.getSuperclass().getName()); | |
318 out.print(" "); | |
319 } else { | |
320 out.print("null "); | |
321 } | |
322 out.print(type.isOopType()); | |
323 out.print(" "); | |
324 if (type.isCIntegerType()) { | |
325 out.print("true "); | |
326 out.print(((CIntegerType)type).isUnsigned()); | |
327 out.print(" "); | |
328 } else { | |
329 out.print("false false "); | |
330 } | |
331 out.print(type.getSize()); | |
332 out.println(); | |
333 } | |
334 | |
335 void dumpFields(Type type) { | |
3939 | 336 dumpFields(type, true); |
337 } | |
338 | |
339 void dumpFields(Type type, boolean allowStatic) { | |
0 | 340 Iterator i = type.getFields(); |
341 while (i.hasNext()) { | |
342 Field f = (Field) i.next(); | |
3939 | 343 if (!allowStatic && f.isStatic()) continue; |
0 | 344 out.print("field "); |
345 quote(type.getName()); | |
346 out.print(" "); | |
347 out.print(f.getName()); | |
348 out.print(" "); | |
349 quote(f.getType().getName()); | |
350 out.print(" "); | |
351 out.print(f.isStatic()); | |
352 out.print(" "); | |
353 if (f.isStatic()) { | |
354 out.print("0 "); | |
355 out.print(f.getStaticFieldAddress()); | |
356 } else { | |
357 out.print(f.getOffset()); | |
358 out.print(" 0x0"); | |
359 } | |
360 out.println(); | |
361 } | |
362 } | |
363 | |
364 | |
365 Address lookup(String symbol) { | |
366 if (symbol.indexOf("::") != -1) { | |
367 String[] parts = symbol.split("::"); | |
368 StringBuffer mangled = new StringBuffer("__1c"); | |
369 for (int i = 0; i < parts.length; i++) { | |
370 int len = parts[i].length(); | |
371 if (len >= 26) { | |
372 mangled.append((char)('a' + (len / 26))); | |
373 len = len % 26; | |
374 } | |
375 mangled.append((char)('A' + len)); | |
376 mangled.append(parts[i]); | |
377 } | |
378 mangled.append("_"); | |
379 symbol = mangled.toString(); | |
380 } | |
381 return VM.getVM().getDebugger().lookup(null, symbol); | |
382 } | |
383 | |
384 Address parseAddress(String addr) { | |
385 return VM.getVM().getDebugger().parseAddress(addr); | |
386 } | |
387 | |
388 private final Command[] commandList = { | |
389 new Command("reattach", true) { | |
390 public void doit(Tokens t) { | |
391 int tokens = t.countTokens(); | |
392 if (tokens != 0) { | |
393 usage(); | |
394 return; | |
395 } | |
396 preAttach(); | |
397 debugger.reattach(); | |
398 postAttach(); | |
399 } | |
400 }, | |
401 new Command("attach", "attach pid | exec core", true) { | |
402 public void doit(Tokens t) { | |
403 int tokens = t.countTokens(); | |
404 if (tokens == 1) { | |
405 preAttach(); | |
406 debugger.attach(t.nextToken()); | |
407 postAttach(); | |
408 } else if (tokens == 2) { | |
409 preAttach(); | |
410 debugger.attach(t.nextToken(), t.nextToken()); | |
411 postAttach(); | |
412 } else { | |
413 usage(); | |
414 } | |
415 } | |
416 }, | |
417 new Command("detach", false) { | |
418 public void doit(Tokens t) { | |
419 if (t.countTokens() != 0) { | |
420 usage(); | |
421 } else { | |
422 debugger.detach(); | |
423 } | |
424 } | |
425 }, | |
426 new Command("examine", "examine [ address/count ] | [ address,address]", false) { | |
427 Pattern args1 = Pattern.compile("^(0x[0-9a-f]+)(/([0-9]*)([a-z]*))?$"); | |
428 Pattern args2 = Pattern.compile("^(0x[0-9a-f]+),(0x[0-9a-f]+)(/[a-z]*)?$"); | |
429 | |
430 String fill(Address a, int width) { | |
431 String s = "0x0"; | |
432 if (a != null) { | |
433 s = a.toString(); | |
434 } | |
435 if (s.length() != width) { | |
436 return s.substring(0, 2) + "000000000000000000000".substring(0, width - s.length()) + s.substring(2); | |
437 } | |
438 return s; | |
439 } | |
440 | |
441 public void doit(Tokens t) { | |
442 if (t.countTokens() != 1) { | |
443 usage(); | |
444 } else { | |
445 String arg = t.nextToken(); | |
446 Matcher m1 = args1.matcher(arg); | |
447 Matcher m2 = args2.matcher(arg); | |
448 Address start = null; | |
449 Address end = null; | |
450 String format = ""; | |
451 int formatSize = (int)VM.getVM().getAddressSize(); | |
452 | |
453 if (m1.matches()) { | |
454 start = VM.getVM().getDebugger().parseAddress(m1.group(1)); | |
455 int count = 1; | |
456 if (m1.group(2) != null) { | |
457 count = Integer.parseInt(m1.group(3)); | |
458 } | |
459 end = start.addOffsetTo(count * formatSize); | |
460 } else if (m2.matches()) { | |
461 start = VM.getVM().getDebugger().parseAddress(m2.group(1)); | |
462 end = VM.getVM().getDebugger().parseAddress(m2.group(2)); | |
463 } else { | |
464 usage(); | |
465 return; | |
466 } | |
467 int line = 80; | |
468 int formatWidth = formatSize * 8 / 4 + 2; | |
469 | |
470 out.print(fill(start, formatWidth)); | |
471 out.print(": "); | |
472 int width = line - formatWidth - 2; | |
473 | |
474 boolean needsPrintln = true; | |
475 while (start != null && start.lessThan(end)) { | |
476 Address val = start.getAddressAt(0); | |
477 out.print(fill(val, formatWidth)); | |
478 needsPrintln = true; | |
479 width -= formatWidth; | |
480 start = start.addOffsetTo(formatSize); | |
481 if (width <= formatWidth) { | |
482 out.println(); | |
483 needsPrintln = false; | |
484 if (start.lessThan(end)) { | |
485 out.print(fill(start, formatWidth)); | |
486 out.print(": "); | |
487 width = line - formatWidth - 2; | |
488 } | |
489 } else { | |
490 out.print(" "); | |
491 width -= 1; | |
492 } | |
493 } | |
494 if (needsPrintln) { | |
495 out.println(); | |
496 } | |
497 } | |
498 } | |
499 }, | |
6972
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500 new Command("dumpreplaydata", "dumpreplaydata { <address > | -a | <thread_id> }", false) { |
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501 // This is used to dump replay data from ciInstanceKlass, ciMethodData etc |
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502 // default file name is replay.txt, also if java crashes in compiler |
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503 // thread, this file will be dumped in error processing. |
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504 public void doit(Tokens t) { |
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505 if (t.countTokens() != 1) { |
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506 usage(); |
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507 return; |
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508 } |
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509 String name = t.nextToken(); |
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510 Address a = null; |
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511 try { |
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512 a = VM.getVM().getDebugger().parseAddress(name); |
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513 } catch (NumberFormatException e) { } |
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514 if (a != null) { |
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515 // only nmethod, Method, MethodData and InstanceKlass needed to |
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516 // dump replay data |
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517 |
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518 CodeBlob cb = VM.getVM().getCodeCache().findBlob(a); |
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519 if (cb != null && (cb instanceof NMethod)) { |
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520 ((NMethod)cb).dumpReplayData(out); |
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521 return; |
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522 } |
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523 // assume it is Metadata |
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524 Metadata meta = Metadata.instantiateWrapperFor(a); |
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525 if (meta != null) { |
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526 meta.dumpReplayData(out); |
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527 } else { |
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528 usage(); |
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529 return; |
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530 } |
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531 } |
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532 // Not an address |
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533 boolean all = name.equals("-a"); |
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534 Threads threads = VM.getVM().getThreads(); |
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535 for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) { |
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536 ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
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537 thread.printThreadIDOn(new PrintStream(bos)); |
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538 if (all || bos.toString().equals(name)) { |
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539 if (thread instanceof CompilerThread) { |
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540 CompilerThread ct = (CompilerThread)thread; |
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541 ciEnv env = ct.env(); |
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542 if (env != null) { |
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543 env.dumpReplayData(out); |
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544 } |
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545 } |
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546 } |
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547 } |
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548 } |
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549 }, |
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550 new Command("buildreplayjars", "buildreplayjars [ all | app | boot ] | [ prefix ]", false) { |
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551 // This is used to dump jar files of all the classes |
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552 // loaded in the core. Everything on the bootclasspath |
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553 // will go in boot.jar and everything else will go in |
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554 // app.jar. Then the classes can be loaded by the replay |
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555 // jvm using -Xbootclasspath/p:boot.jar -cp app.jar. boot.jar usually |
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556 // not needed, unless changed by jvmti. |
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557 public void doit(Tokens t) { |
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558 int tcount = t.countTokens(); |
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559 if (tcount > 2) { |
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560 usage(); |
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561 return; |
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562 } |
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563 try { |
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564 String prefix = ""; |
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565 String option = "all"; // default |
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566 switch(tcount) { |
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567 case 0: |
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568 break; |
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569 case 1: |
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570 option = t.nextToken(); |
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571 if (!option.equalsIgnoreCase("all") && !option.equalsIgnoreCase("app") && |
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572 !option.equalsIgnoreCase("root")) { |
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573 prefix = option; |
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574 option = "all"; |
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575 } |
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576 break; |
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577 case 2: |
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578 option = t.nextToken(); |
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579 prefix = t.nextToken(); |
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580 break; |
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581 default: |
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582 usage(); |
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583 return; |
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584 } |
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585 if (!option.equalsIgnoreCase("all") && !option.equalsIgnoreCase("app") && |
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586 !option.equalsIgnoreCase("boot")) { |
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587 usage(); |
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588 return; |
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589 } |
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590 ClassDump cd = new ClassDump(); |
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591 if (option.equalsIgnoreCase("all") || option.equalsIgnoreCase("boot")) { |
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592 cd.setClassFilter(new BootFilter()); |
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593 cd.setJarOutput(prefix + "boot.jar"); |
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594 cd.run(); |
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595 } |
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596 if (option.equalsIgnoreCase("all") || option.equalsIgnoreCase("app")) { |
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597 cd.setClassFilter(new NonBootFilter()); |
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598 cd.setJarOutput(prefix + "app.jar"); |
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599 cd.run(); |
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600 } |
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601 } catch (IOException ioe) { |
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602 ioe.printStackTrace(); |
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603 } |
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604 } |
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605 }, |
0 | 606 new Command("findpc", "findpc address", false) { |
607 public void doit(Tokens t) { | |
608 if (t.countTokens() != 1) { | |
609 usage(); | |
610 } else { | |
611 Address a = VM.getVM().getDebugger().parseAddress(t.nextToken()); | |
612 PointerLocation loc = PointerFinder.find(a); | |
613 loc.printOn(out); | |
614 } | |
615 } | |
616 }, | |
2177
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617 new Command("symbol", "symbol address", false) { |
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618 public void doit(Tokens t) { |
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619 if (t.countTokens() != 1) { |
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620 usage(); |
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621 } else { |
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622 Address a = VM.getVM().getDebugger().parseAddress(t.nextToken()); |
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623 Symbol.create(a).printValueOn(out); |
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624 out.println(); |
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625 } |
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626 } |
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627 }, |
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628 new Command("symboltable", "symboltable name", false) { |
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629 public void doit(Tokens t) { |
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630 if (t.countTokens() != 1) { |
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631 usage(); |
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632 } else { |
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633 out.println(SymbolTable.getTheTable().probe(t.nextToken())); |
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634 } |
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635 } |
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636 }, |
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637 new Command("symboldump", "symboldump", false) { |
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638 public void doit(Tokens t) { |
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639 SymbolTable.getTheTable().symbolsDo(new SymbolTable.SymbolVisitor() { |
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640 public void visit(Symbol sym) { |
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641 sym.printValueOn(out); |
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642 out.println(); |
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643 } |
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644 }); |
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645 } |
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646 }, |
3939 | 647 new Command("flags", "flags [ flag | -nd ]", false) { |
0 | 648 public void doit(Tokens t) { |
649 int tokens = t.countTokens(); | |
650 if (tokens != 0 && tokens != 1) { | |
651 usage(); | |
652 } else { | |
653 String name = tokens > 0 ? t.nextToken() : null; | |
3939 | 654 boolean nonDefault = false; |
655 if (name != null && name.equals("-nd")) { | |
656 name = null; | |
657 nonDefault = true; | |
658 } | |
0 | 659 |
660 VM.Flag[] flags = VM.getVM().getCommandLineFlags(); | |
661 if (flags == null) { | |
662 out.println("Command Flag info not available (use 1.4.1_03 or later)!"); | |
663 } else { | |
664 boolean printed = false; | |
665 for (int f = 0; f < flags.length; f++) { | |
666 VM.Flag flag = flags[f]; | |
667 if (name == null || flag.getName().equals(name)) { | |
3939 | 668 |
669 if (nonDefault && flag.getOrigin() == 0) { | |
670 // only print flags which aren't their defaults | |
671 continue; | |
672 } | |
673 out.println(flag.getName() + " = " + flag.getValue() + " " + flag.getOrigin()); | |
0 | 674 printed = true; |
675 } | |
676 } | |
677 if (name != null && !printed) { | |
678 out.println("Couldn't find flag: " + name); | |
679 } | |
680 } | |
681 } | |
682 } | |
683 }, | |
684 new Command("help", "help [ command ]", true) { | |
685 public void doit(Tokens t) { | |
686 int tokens = t.countTokens(); | |
687 Command cmd = null; | |
688 if (tokens == 1) { | |
689 cmd = findCommand(t.nextToken()); | |
690 } | |
691 | |
692 if (cmd != null) { | |
693 cmd.usage(); | |
694 } else if (tokens == 0) { | |
695 out.println("Available commands:"); | |
696 Object[] keys = commands.keySet().toArray(); | |
697 Arrays.sort(keys, new Comparator() { | |
698 public int compare(Object o1, Object o2) { | |
699 return o1.toString().compareTo(o2.toString()); | |
700 } | |
701 }); | |
702 for (int i = 0; i < keys.length; i++) { | |
703 out.print(" "); | |
704 out.println(((Command)commands.get(keys[i])).usage); | |
705 } | |
706 } | |
707 } | |
708 }, | |
709 new Command("history", "history", true) { | |
710 public void doit(Tokens t) { | |
711 int tokens = t.countTokens(); | |
712 if (tokens != 0 && (tokens != 1 || !t.nextToken().equals("-h"))) { | |
713 usage(); | |
714 return; | |
715 } | |
716 boolean printIndex = tokens == 0; | |
717 for (int i = 0; i < history.size(); i++) { | |
718 if (printIndex) out.print(i + " "); | |
719 out.println(history.get(i)); | |
720 } | |
721 } | |
722 }, | |
6782 | 723 // decode raw address |
724 new Command("dis", "dis address [length]", false) { | |
725 public void doit(Tokens t) { | |
726 int tokens = t.countTokens(); | |
727 if (tokens != 1 && tokens != 2) { | |
728 usage(); | |
729 return; | |
730 } | |
731 String name = t.nextToken(); | |
732 Address addr = null; | |
733 int len = 0x10; // default length | |
734 try { | |
735 addr = VM.getVM().getDebugger().parseAddress(name); | |
736 } catch (NumberFormatException e) { | |
737 out.println(e); | |
738 return; | |
739 } | |
740 if (tokens == 2) { | |
741 try { | |
742 len = Integer.parseInt(t.nextToken()); | |
743 } catch (NumberFormatException e) { | |
744 out.println(e); | |
745 return; | |
746 } | |
747 } | |
748 HTMLGenerator generator = new HTMLGenerator(false); | |
749 out.println(generator.genHTMLForRawDisassembly(addr, len)); | |
750 } | |
751 | |
752 }, | |
753 // decode codeblob or nmethod | |
754 new Command("disassemble", "disassemble address", false) { | |
755 public void doit(Tokens t) { | |
756 int tokens = t.countTokens(); | |
757 if (tokens != 1) { | |
758 usage(); | |
759 return; | |
760 } | |
761 String name = t.nextToken(); | |
762 Address addr = null; | |
763 try { | |
764 addr = VM.getVM().getDebugger().parseAddress(name); | |
765 } catch (NumberFormatException e) { | |
766 out.println(e); | |
767 return; | |
768 } | |
769 | |
770 HTMLGenerator generator = new HTMLGenerator(false); | |
771 out.println(generator.genHTML(addr)); | |
772 } | |
773 }, | |
774 // print Java bytecode disassembly | |
775 new Command("jdis", "jdis address", false) { | |
776 public void doit(Tokens t) { | |
777 int tokens = t.countTokens(); | |
778 if (tokens != 1) { | |
779 usage(); | |
780 return; | |
781 } | |
782 Address a = VM.getVM().getDebugger().parseAddress(t.nextToken()); | |
783 Method m = (Method)Metadata.instantiateWrapperFor(a); | |
784 HTMLGenerator html = new HTMLGenerator(false); | |
785 out.println(html.genHTML(m)); | |
786 } | |
787 }, | |
1385 | 788 new Command("revptrs", "revptrs address", false) { |
789 public void doit(Tokens t) { | |
790 int tokens = t.countTokens(); | |
791 if (tokens != 1 && (tokens != 2 || !t.nextToken().equals("-c"))) { | |
792 usage(); | |
793 return; | |
794 } | |
795 boolean chase = tokens == 2; | |
796 ReversePtrs revptrs = VM.getVM().getRevPtrs(); | |
797 if (revptrs == null) { | |
798 out.println("Computing reverse pointers..."); | |
799 ReversePtrsAnalysis analysis = new ReversePtrsAnalysis(); | |
800 final boolean[] complete = new boolean[1]; | |
801 HeapProgressThunk thunk = new HeapProgressThunk() { | |
802 public void heapIterationFractionUpdate(double d) {} | |
803 public synchronized void heapIterationComplete() { | |
804 complete[0] = true; | |
805 notify(); | |
806 } | |
807 }; | |
808 analysis.setHeapProgressThunk(thunk); | |
809 analysis.run(); | |
810 while (!complete[0]) { | |
811 synchronized (thunk) { | |
812 try { | |
813 thunk.wait(); | |
814 } catch (Exception e) { | |
815 } | |
816 } | |
817 } | |
818 revptrs = VM.getVM().getRevPtrs(); | |
819 out.println("Done."); | |
820 } | |
821 Address a = VM.getVM().getDebugger().parseAddress(t.nextToken()); | |
822 if (VM.getVM().getUniverse().heap().isInReserved(a)) { | |
823 OopHandle handle = a.addOffsetToAsOopHandle(0); | |
824 Oop oop = VM.getVM().getObjectHeap().newOop(handle); | |
825 ArrayList ptrs = revptrs.get(oop); | |
826 if (ptrs == null) { | |
827 out.println("no live references to " + a); | |
828 } else { | |
829 if (chase) { | |
830 while (ptrs.size() == 1) { | |
831 LivenessPathElement e = (LivenessPathElement)ptrs.get(0); | |
832 ByteArrayOutputStream bos = new ByteArrayOutputStream(); | |
833 Oop.printOopValueOn(e.getObj(), new PrintStream(bos)); | |
834 out.println(bos.toString()); | |
835 ptrs = revptrs.get(e.getObj()); | |
836 } | |
837 } else { | |
838 for (int i = 0; i < ptrs.size(); i++) { | |
839 LivenessPathElement e = (LivenessPathElement)ptrs.get(i); | |
840 ByteArrayOutputStream bos = new ByteArrayOutputStream(); | |
841 Oop.printOopValueOn(e.getObj(), new PrintStream(bos)); | |
842 out.println(bos.toString()); | |
843 oop = e.getObj(); | |
844 } | |
845 } | |
846 } | |
847 } | |
848 } | |
849 }, | |
3939 | 850 new Command("printmdo", "printmdo [ -a | expression ]", false) { |
851 // Print every MDO in the heap or the one referenced by expression. | |
852 public void doit(Tokens t) { | |
853 if (t.countTokens() != 1) { | |
854 usage(); | |
855 } else { | |
856 String s = t.nextToken(); | |
857 if (s.equals("-a")) { | |
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858 SystemDictionary sysDict = VM.getVM().getSystemDictionary(); |
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859 sysDict.allClassesDo(new SystemDictionary.ClassVisitor() { |
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860 public void visit(Klass k) { |
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861 if (k instanceof InstanceKlass) { |
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862 MethodArray methods = ((InstanceKlass)k).getMethods(); |
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863 for (int i = 0; i < methods.length(); i++) { |
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864 Method m = methods.at(i); |
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865 MethodData mdo = m.getMethodData(); |
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866 if (mdo != null) { |
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867 out.println("MethodData " + mdo.getAddress() + " for " + |
3939 | 868 "method " + m.getMethodHolder().getName().asString() + "." + |
869 m.getName().asString() + | |
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870 m.getSignature().asString() + "@" + m.getAddress()); |
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871 mdo.printDataOn(out); |
3939 | 872 } |
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873 } |
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874 } |
3939 | 875 } |
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876 } |
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877 ); |
3939 | 878 } else { |
879 Address a = VM.getVM().getDebugger().parseAddress(s); | |
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880 MethodData mdo = (MethodData) Metadata.instantiateWrapperFor(a); |
3939 | 881 mdo.printDataOn(out); |
882 } | |
883 } | |
884 } | |
885 }, | |
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886 new Command("printall", "printall", false) { |
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887 // Print every MDO in the heap or the one referenced by expression. |
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888 public void doit(Tokens t) { |
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889 if (t.countTokens() != 0) { |
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890 usage(); |
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891 } else { |
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892 SystemDictionary sysDict = VM.getVM().getSystemDictionary(); |
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893 sysDict.allClassesDo(new SystemDictionary.ClassVisitor() { |
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894 public void visit(Klass k) { |
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895 if (k instanceof InstanceKlass && ((InstanceKlass)k).getConstants().getCache() != null) { |
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896 MethodArray methods = ((InstanceKlass)k).getMethods(); |
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897 for (int i = 0; i < methods.length(); i++) { |
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898 Method m = methods.at(i); |
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899 HTMLGenerator gen = new HTMLGenerator(false); |
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900 out.println(gen.genHTML(m)); |
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901 } |
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902 } |
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903 } |
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904 } |
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905 ); |
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906 } |
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907 } |
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908 }, |
3939 | 909 new Command("dumpideal", "dumpideal { -a | id }", false) { |
910 // Do a full dump of the nodes reachabile from root in each compiler thread. | |
911 public void doit(Tokens t) { | |
912 if (t.countTokens() != 1) { | |
913 usage(); | |
914 } else { | |
915 String name = t.nextToken(); | |
916 boolean all = name.equals("-a"); | |
917 Threads threads = VM.getVM().getThreads(); | |
918 for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) { | |
919 ByteArrayOutputStream bos = new ByteArrayOutputStream(); | |
920 thread.printThreadIDOn(new PrintStream(bos)); | |
921 if (all || bos.toString().equals(name)) { | |
922 if (thread instanceof CompilerThread) { | |
923 CompilerThread ct = (CompilerThread)thread; | |
924 out.println(ct); | |
925 ciEnv env = ct.env(); | |
926 if (env != null) { | |
927 Compile c = env.compilerData(); | |
928 c.root().dump(9999, out); | |
929 } else { | |
930 out.println(" not compiling"); | |
931 } | |
932 } | |
933 } | |
934 } | |
935 } | |
936 } | |
937 }, | |
938 new Command("dumpcfg", "dumpcfg { -a | id }", false) { | |
939 // Dump the PhaseCFG for every compiler thread that has one live. | |
940 public void doit(Tokens t) { | |
941 if (t.countTokens() != 1) { | |
942 usage(); | |
943 } else { | |
944 String name = t.nextToken(); | |
945 boolean all = name.equals("-a"); | |
946 Threads threads = VM.getVM().getThreads(); | |
947 for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) { | |
948 ByteArrayOutputStream bos = new ByteArrayOutputStream(); | |
949 thread.printThreadIDOn(new PrintStream(bos)); | |
950 if (all || bos.toString().equals(name)) { | |
951 if (thread instanceof CompilerThread) { | |
952 CompilerThread ct = (CompilerThread)thread; | |
953 out.println(ct); | |
954 ciEnv env = ct.env(); | |
955 if (env != null) { | |
956 Compile c = env.compilerData(); | |
957 c.cfg().dump(out); | |
958 } | |
959 } | |
960 } | |
961 } | |
962 } | |
963 } | |
964 }, | |
965 new Command("dumpilt", "dumpilt { -a | id }", false) { | |
966 // dumps the InlineTree of a C2 compile | |
967 public void doit(Tokens t) { | |
968 if (t.countTokens() != 1) { | |
969 usage(); | |
970 } else { | |
971 String name = t.nextToken(); | |
972 boolean all = name.equals("-a"); | |
973 Threads threads = VM.getVM().getThreads(); | |
974 for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) { | |
975 ByteArrayOutputStream bos = new ByteArrayOutputStream(); | |
976 thread.printThreadIDOn(new PrintStream(bos)); | |
977 if (all || bos.toString().equals(name)) { | |
978 if (thread instanceof CompilerThread) { | |
979 CompilerThread ct = (CompilerThread)thread; | |
980 ciEnv env = ct.env(); | |
981 if (env != null) { | |
982 Compile c = env.compilerData(); | |
983 InlineTree ilt = c.ilt(); | |
984 if (ilt != null) { | |
985 ilt.print(out); | |
986 } | |
987 } | |
988 } | |
989 } | |
990 } | |
991 } | |
992 } | |
993 }, | |
994 new Command("vmstructsdump", "vmstructsdump", false) { | |
995 public void doit(Tokens t) { | |
996 if (t.countTokens() != 0) { | |
997 usage(); | |
998 return; | |
999 } | |
1000 | |
1001 // Dump a copy of the type database in a form that can | |
1002 // be read back. | |
1003 Iterator i = agent.getTypeDataBase().getTypes(); | |
1004 // Make sure the types are emitted in an order than can be read back in | |
1005 HashSet emitted = new HashSet(); | |
1006 Stack pending = new Stack(); | |
1007 while (i.hasNext()) { | |
1008 Type n = (Type)i.next(); | |
1009 if (emitted.contains(n.getName())) { | |
1010 continue; | |
1011 } | |
1012 | |
1013 while (n != null && !emitted.contains(n.getName())) { | |
1014 pending.push(n); | |
1015 n = n.getSuperclass(); | |
1016 } | |
1017 while (!pending.empty()) { | |
1018 n = (Type)pending.pop(); | |
1019 dumpType(n); | |
1020 emitted.add(n.getName()); | |
1021 } | |
1022 } | |
1023 i = agent.getTypeDataBase().getTypes(); | |
1024 while (i.hasNext()) { | |
1025 dumpFields((Type)i.next(), false); | |
1026 } | |
1027 } | |
1028 }, | |
1029 | |
0 | 1030 new Command("inspect", "inspect expression", false) { |
1031 public void doit(Tokens t) { | |
1032 if (t.countTokens() != 1) { | |
1033 usage(); | |
1034 } else { | |
1035 Address a = VM.getVM().getDebugger().parseAddress(t.nextToken()); | |
1036 SimpleTreeNode node = null; | |
1037 if (VM.getVM().getUniverse().heap().isInReserved(a)) { | |
1038 OopHandle handle = a.addOffsetToAsOopHandle(0); | |
1039 Oop oop = VM.getVM().getObjectHeap().newOop(handle); | |
1040 node = new OopTreeNodeAdapter(oop, null); | |
1041 | |
1042 out.println("instance of " + node.getValue() + " @ " + a + | |
1043 " (size = " + oop.getObjectSize() + ")"); | |
1044 } else if (VM.getVM().getCodeCache().contains(a)) { | |
1045 CodeBlob blob = VM.getVM().getCodeCache().findBlobUnsafe(a); | |
1046 a = blob.headerBegin(); | |
1047 } | |
1048 if (node == null) { | |
1049 Type type = VM.getVM().getTypeDataBase().guessTypeForAddress(a); | |
1050 if (type != null) { | |
1051 out.println("Type is " + type.getName() + " (size of " + type.getSize() + ")"); | |
1052 node = new CTypeTreeNodeAdapter(a, type, null); | |
1053 } | |
1054 } | |
1055 if (node != null) { | |
1056 printNode(node); | |
1057 } | |
1058 } | |
1059 } | |
1060 }, | |
1061 new Command("jhisto", "jhisto", false) { | |
1062 public void doit(Tokens t) { | |
1063 ObjectHistogram histo = new ObjectHistogram(); | |
1064 histo.run(out, err); | |
1065 } | |
1066 }, | |
1067 new Command("jstack", "jstack [-v]", false) { | |
1068 public void doit(Tokens t) { | |
1069 boolean verbose = false; | |
1070 if (t.countTokens() > 0 && t.nextToken().equals("-v")) { | |
1071 verbose = true; | |
1072 } | |
1073 StackTrace jstack = new StackTrace(verbose, true); | |
1074 jstack.run(out); | |
1075 } | |
1076 }, | |
1077 new Command("print", "print expression", false) { | |
1078 public void doit(Tokens t) { | |
1079 if (t.countTokens() != 1) { | |
1080 usage(); | |
1081 } else { | |
1082 Address a = VM.getVM().getDebugger().parseAddress(t.nextToken()); | |
1083 HTMLGenerator gen = new HTMLGenerator(false); | |
1084 out.println(gen.genHTML(a)); | |
1085 } | |
1086 } | |
1087 }, | |
1088 new Command("printas", "printas type expression", false) { | |
1089 public void doit(Tokens t) { | |
1090 if (t.countTokens() != 2) { | |
1091 usage(); | |
1092 } else { | |
1093 Type type = agent.getTypeDataBase().lookupType(t.nextToken()); | |
1094 Address a = VM.getVM().getDebugger().parseAddress(t.nextToken()); | |
1095 CTypeTreeNodeAdapter node = new CTypeTreeNodeAdapter(a, type, null); | |
1096 | |
1097 out.println("pointer to " + type + " @ " + a + | |
1098 " (size = " + type.getSize() + ")"); | |
1099 printNode(node); | |
1100 } | |
1101 } | |
1102 }, | |
1103 new Command("printstatics", "printstatics [ type ]", false) { | |
1104 public void doit(Tokens t) { | |
1105 if (t.countTokens() > 1) { | |
1106 usage(); | |
1107 } else { | |
1108 if (t.countTokens() == 0) { | |
1109 out.println("All known static fields"); | |
1110 printNode(new CTypeTreeNodeAdapter(agent.getTypeDataBase().getTypes())); | |
1111 } else { | |
1112 Type type = agent.getTypeDataBase().lookupType(t.nextToken()); | |
1113 out.println("Static fields of " + type.getName()); | |
1114 printNode(new CTypeTreeNodeAdapter(type)); | |
1115 } | |
1116 } | |
1117 } | |
1118 }, | |
1119 new Command("pmap", "pmap", false) { | |
1120 public void doit(Tokens t) { | |
1121 PMap pmap = new PMap(); | |
1122 pmap.run(out, debugger.getAgent().getDebugger()); | |
1123 } | |
1124 }, | |
1125 new Command("pstack", "pstack [-v]", false) { | |
1126 public void doit(Tokens t) { | |
1127 boolean verbose = false; | |
1128 if (t.countTokens() > 0 && t.nextToken().equals("-v")) { | |
1129 verbose = true; | |
1130 } | |
1131 PStack pstack = new PStack(verbose, true); | |
1132 pstack.run(out, debugger.getAgent().getDebugger()); | |
1133 } | |
1134 }, | |
1135 new Command("quit", true) { | |
1136 public void doit(Tokens t) { | |
1137 if (t.countTokens() != 0) { | |
1138 usage(); | |
1139 } else { | |
1140 debugger.detach(); | |
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1141 quit = true; |
0 | 1142 } |
1143 } | |
1144 }, | |
1145 new Command("echo", "echo [ true | false ]", true) { | |
1146 public void doit(Tokens t) { | |
1147 if (t.countTokens() == 0) { | |
1148 out.println("echo is " + doEcho); | |
1149 } else if (t.countTokens() == 1) { | |
1150 doEcho = Boolean.valueOf(t.nextToken()).booleanValue(); | |
1151 } else { | |
1152 usage(); | |
1153 } | |
1154 } | |
1155 }, | |
1156 new Command("versioncheck", "versioncheck [ true | false ]", true) { | |
1157 public void doit(Tokens t) { | |
1158 if (t.countTokens() == 0) { | |
1159 out.println("versioncheck is " + | |
1160 (System.getProperty("sun.jvm.hotspot.runtime.VM.disableVersionCheck") == null)); | |
1161 } else if (t.countTokens() == 1) { | |
1162 if (Boolean.valueOf(t.nextToken()).booleanValue()) { | |
1163 System.setProperty("sun.jvm.hotspot.runtime.VM.disableVersionCheck", null); | |
1164 } else { | |
1165 System.setProperty("sun.jvm.hotspot.runtime.VM.disableVersionCheck", "true"); | |
1166 } | |
1167 } else { | |
1168 usage(); | |
1169 } | |
1170 } | |
1171 }, | |
1172 new Command("scanoops", "scanoops start end [ type ]", false) { | |
1173 public void doit(Tokens t) { | |
1174 if (t.countTokens() != 2 && t.countTokens() != 3) { | |
1175 usage(); | |
1176 } else { | |
1177 long stride = VM.getVM().getAddressSize(); | |
1178 Address base = VM.getVM().getDebugger().parseAddress(t.nextToken()); | |
1179 Address end = VM.getVM().getDebugger().parseAddress(t.nextToken()); | |
1180 Klass klass = null; | |
1181 if (t.countTokens() == 1) { | |
1182 klass = SystemDictionaryHelper.findInstanceKlass(t.nextToken()); | |
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1183 if (klass == null) { |
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|
1184 out.println("No such type."); |
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|
1185 return; |
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|
1186 } |
0 | 1187 } |
1188 while (base != null && base.lessThan(end)) { | |
1189 long step = stride; | |
1190 OopHandle handle = base.addOffsetToAsOopHandle(0); | |
1191 if (RobustOopDeterminator.oopLooksValid(handle)) { | |
1192 try { | |
1193 Oop oop = VM.getVM().getObjectHeap().newOop(handle); | |
1194 if (klass == null || oop.getKlass().isSubtypeOf(klass)) | |
1195 out.println(handle.toString() + " " + oop.getKlass().getName().asString()); | |
1196 step = oop.getObjectSize(); | |
1197 } catch (UnknownOopException ex) { | |
1198 // ok | |
1199 } catch (RuntimeException ex) { | |
1200 ex.printStackTrace(); | |
1201 } | |
1202 } | |
1203 base = base.addOffsetTo(step); | |
1204 } | |
1205 } | |
1206 } | |
1207 }, | |
3939 | 1208 new Command("intConstant", "intConstant [ name [ value ] ]", true) { |
1209 public void doit(Tokens t) { | |
1210 if (t.countTokens() != 1 && t.countTokens() != 0 && t.countTokens() != 2) { | |
1211 usage(); | |
1212 return; | |
1213 } | |
1214 HotSpotTypeDataBase db = (HotSpotTypeDataBase)agent.getTypeDataBase(); | |
1215 if (t.countTokens() == 1) { | |
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1216 String name = t.nextToken(); |
3939 | 1217 out.println("intConstant " + name + " " + db.lookupIntConstant(name)); |
1218 } else if (t.countTokens() == 0) { | |
1219 Iterator i = db.getIntConstants(); | |
1220 while (i.hasNext()) { | |
1221 String name = (String)i.next(); | |
1222 out.println("intConstant " + name + " " + db.lookupIntConstant(name)); | |
1223 } | |
1224 } else if (t.countTokens() == 2) { | |
1225 String name = t.nextToken(); | |
1226 Integer value = Integer.valueOf(t.nextToken()); | |
1227 db.addIntConstant(name, value); | |
1228 } | |
1229 } | |
1230 }, | |
1231 new Command("longConstant", "longConstant [ name [ value ] ]", true) { | |
1232 public void doit(Tokens t) { | |
1233 if (t.countTokens() != 1 && t.countTokens() != 0 && t.countTokens() != 2) { | |
1234 usage(); | |
1235 return; | |
1236 } | |
1237 HotSpotTypeDataBase db = (HotSpotTypeDataBase)agent.getTypeDataBase(); | |
1238 if (t.countTokens() == 1) { | |
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|
1239 String name = t.nextToken(); |
3939 | 1240 out.println("longConstant " + name + " " + db.lookupLongConstant(name)); |
1241 } else if (t.countTokens() == 0) { | |
1242 Iterator i = db.getLongConstants(); | |
1243 while (i.hasNext()) { | |
1244 String name = (String)i.next(); | |
1245 out.println("longConstant " + name + " " + db.lookupLongConstant(name)); | |
1246 } | |
1247 } else if (t.countTokens() == 2) { | |
1248 String name = t.nextToken(); | |
1249 Long value = Long.valueOf(t.nextToken()); | |
1250 db.addLongConstant(name, value); | |
1251 } | |
1252 } | |
1253 }, | |
0 | 1254 new Command("field", "field [ type [ name fieldtype isStatic offset address ] ]", true) { |
1255 public void doit(Tokens t) { | |
1256 if (t.countTokens() != 1 && t.countTokens() != 0 && t.countTokens() != 6) { | |
1257 usage(); | |
1258 return; | |
1259 } | |
1260 if (t.countTokens() == 1) { | |
1261 Type type = agent.getTypeDataBase().lookupType(t.nextToken()); | |
1262 dumpFields(type); | |
1263 } else if (t.countTokens() == 0) { | |
1264 Iterator i = agent.getTypeDataBase().getTypes(); | |
1265 while (i.hasNext()) { | |
1266 dumpFields((Type)i.next()); | |
1267 } | |
1268 } else { | |
1269 BasicType containingType = (BasicType)agent.getTypeDataBase().lookupType(t.nextToken()); | |
1270 | |
1271 String fieldName = t.nextToken(); | |
1272 | |
1273 // The field's Type must already be in the database -- no exceptions | |
1274 Type fieldType = agent.getTypeDataBase().lookupType(t.nextToken()); | |
1275 | |
1276 boolean isStatic = Boolean.valueOf(t.nextToken()).booleanValue(); | |
1277 long offset = Long.parseLong(t.nextToken()); | |
1278 Address staticAddress = parseAddress(t.nextToken()); | |
1279 if (isStatic && staticAddress == null) { | |
1280 staticAddress = lookup(containingType.getName() + "::" + fieldName); | |
1281 } | |
1282 | |
1283 // check to see if the field already exists | |
1284 Iterator i = containingType.getFields(); | |
1285 while (i.hasNext()) { | |
1286 Field f = (Field) i.next(); | |
1287 if (f.getName().equals(fieldName)) { | |
1288 if (f.isStatic() != isStatic) { | |
1289 throw new RuntimeException("static/nonstatic mismatch: " + t.input); | |
1290 } | |
1291 if (!isStatic) { | |
1292 if (f.getOffset() != offset) { | |
1293 throw new RuntimeException("bad redefinition of field offset: " + t.input); | |
1294 } | |
1295 } else { | |
1296 if (!f.getStaticFieldAddress().equals(staticAddress)) { | |
1297 throw new RuntimeException("bad redefinition of field location: " + t.input); | |
1298 } | |
1299 } | |
1300 if (f.getType() != fieldType) { | |
1301 throw new RuntimeException("bad redefinition of field type: " + t.input); | |
1302 } | |
1303 return; | |
1304 } | |
1305 } | |
1306 | |
1307 // Create field by type | |
1308 HotSpotTypeDataBase db = (HotSpotTypeDataBase)agent.getTypeDataBase(); | |
1309 db.createField(containingType, | |
1310 fieldName, fieldType, | |
1311 isStatic, | |
1312 offset, | |
1313 staticAddress); | |
1314 | |
1315 } | |
1316 } | |
1317 | |
1318 }, | |
1319 new Command("tokenize", "tokenize ...", true) { | |
1320 public void doit(Tokens t) { | |
1321 while (t.hasMoreTokens()) { | |
1322 out.println("\"" + t.nextToken() + "\""); | |
1323 } | |
1324 } | |
1325 }, | |
1326 new Command("type", "type [ type [ name super isOop isInteger isUnsigned size ] ]", true) { | |
1327 public void doit(Tokens t) { | |
1328 if (t.countTokens() != 1 && t.countTokens() != 0 && t.countTokens() != 6) { | |
1329 usage(); | |
1330 return; | |
1331 } | |
1332 if (t.countTokens() == 6) { | |
1333 String typeName = t.nextToken(); | |
1334 String superclassName = t.nextToken(); | |
1335 if (superclassName.equals("null")) { | |
1336 superclassName = null; | |
1337 } | |
1338 boolean isOop = Boolean.valueOf(t.nextToken()).booleanValue(); | |
1339 boolean isInteger = Boolean.valueOf(t.nextToken()).booleanValue(); | |
1340 boolean isUnsigned = Boolean.valueOf(t.nextToken()).booleanValue(); | |
1341 long size = Long.parseLong(t.nextToken()); | |
1342 | |
1343 BasicType type = null; | |
1344 try { | |
1345 type = (BasicType)agent.getTypeDataBase().lookupType(typeName); | |
1346 } catch (RuntimeException e) { | |
1347 } | |
1348 if (type != null) { | |
1349 if (type.isOopType() != isOop) { | |
1350 throw new RuntimeException("oop mismatch in type definition: " + t.input); | |
1351 } | |
1352 if (type.isCIntegerType() != isInteger) { | |
1353 throw new RuntimeException("integer type mismatch in type definition: " + t.input); | |
1354 } | |
1355 if (type.isCIntegerType() && (((CIntegerType)type).isUnsigned()) != isUnsigned) { | |
1356 throw new RuntimeException("unsigned mismatch in type definition: " + t.input); | |
1357 } | |
1358 if (type.getSuperclass() == null) { | |
1359 if (superclassName != null) { | |
1360 if (type.getSize() == -1) { | |
1361 type.setSuperclass(agent.getTypeDataBase().lookupType(superclassName)); | |
1362 } else { | |
1363 throw new RuntimeException("unexpected superclass in type definition: " + t.input); | |
1364 } | |
1365 } | |
1366 } else { | |
1367 if (superclassName == null) { | |
1368 throw new RuntimeException("missing superclass in type definition: " + t.input); | |
1369 } | |
1370 if (!type.getSuperclass().getName().equals(superclassName)) { | |
1371 throw new RuntimeException("incorrect superclass in type definition: " + t.input); | |
1372 } | |
1373 } | |
1374 if (type.getSize() != size) { | |
1375 if (type.getSize() == -1) { | |
1376 type.setSize(size); | |
1377 } | |
1378 throw new RuntimeException("size mismatch in type definition: " + t.input); | |
1379 } | |
1380 return; | |
1381 } | |
1382 | |
1383 // Create type | |
1384 HotSpotTypeDataBase db = (HotSpotTypeDataBase)agent.getTypeDataBase(); | |
1385 db.createType(typeName, superclassName, isOop, isInteger, isUnsigned, size); | |
1386 } else if (t.countTokens() == 1) { | |
1387 Type type = agent.getTypeDataBase().lookupType(t.nextToken()); | |
1388 dumpType(type); | |
1389 } else { | |
1390 Iterator i = agent.getTypeDataBase().getTypes(); | |
1385 | 1391 // Make sure the types are emitted in an order than can be read back in |
1392 HashSet emitted = new HashSet(); | |
1393 Stack pending = new Stack(); | |
0 | 1394 while (i.hasNext()) { |
1385 | 1395 Type n = (Type)i.next(); |
1396 if (emitted.contains(n.getName())) { | |
1397 continue; | |
1398 } | |
1399 | |
1400 while (n != null && !emitted.contains(n.getName())) { | |
1401 pending.push(n); | |
1402 n = n.getSuperclass(); | |
1403 } | |
1404 while (!pending.empty()) { | |
1405 n = (Type)pending.pop(); | |
1406 dumpType(n); | |
1407 emitted.add(n.getName()); | |
1408 } | |
0 | 1409 } |
1410 } | |
1411 } | |
1412 | |
1413 }, | |
1414 new Command("source", "source filename", true) { | |
1415 public void doit(Tokens t) { | |
1416 if (t.countTokens() != 1) { | |
1417 usage(); | |
1418 return; | |
1419 } | |
1420 String file = t.nextToken(); | |
1421 BufferedReader savedInput = in; | |
1422 try { | |
1423 BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(file))); | |
1424 in = input; | |
1425 run(false); | |
1426 } catch (Exception e) { | |
1427 out.println("Error: " + e); | |
1428 if (verboseExceptions) { | |
1429 e.printStackTrace(out); | |
1430 } | |
1431 } finally { | |
1432 in = savedInput; | |
1433 } | |
1434 | |
1435 } | |
1436 }, | |
1385 | 1437 new Command("search", "search [ heap | perm | rawheap | codecache | threads ] value", false) { |
0 | 1438 public void doit(Tokens t) { |
1439 if (t.countTokens() != 2) { | |
1440 usage(); | |
1385 | 1441 return; |
1442 } | |
1443 String type = t.nextToken(); | |
1444 final Address value = VM.getVM().getDebugger().parseAddress(t.nextToken()); | |
1445 final long stride = VM.getVM().getAddressSize(); | |
1446 if (type.equals("threads")) { | |
1447 Threads threads = VM.getVM().getThreads(); | |
1448 for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) { | |
1449 Address base = thread.getBaseOfStackPointer(); | |
1450 Address end = thread.getLastJavaSP(); | |
1451 if (end == null) continue; | |
1452 if (end.lessThan(base)) { | |
1453 Address tmp = base; | |
1454 base = end; | |
1455 end = tmp; | |
1456 } | |
1457 out.println("Searching " + base + " " + end); | |
1458 while (base != null && base.lessThan(end)) { | |
1459 Address val = base.getAddressAt(0); | |
1460 if (AddressOps.equal(val, value)) { | |
1461 out.println(base); | |
1462 } | |
1463 base = base.addOffsetTo(stride); | |
1464 } | |
1465 } | |
1466 } else if (type.equals("rawheap")) { | |
1467 RawHeapVisitor iterator = new RawHeapVisitor() { | |
1468 public void prologue(long used) { | |
0 | 1469 } |
1385 | 1470 |
1471 public void visitAddress(Address addr) { | |
1472 Address val = addr.getAddressAt(0); | |
0 | 1473 if (AddressOps.equal(val, value)) { |
1385 | 1474 out.println("found at " + addr); |
0 | 1475 } |
1385 | 1476 } |
1477 public void visitCompOopAddress(Address addr) { | |
1478 Address val = addr.getCompOopAddressAt(0); | |
1479 if (AddressOps.equal(val, value)) { | |
1480 out.println("found at " + addr); | |
1481 } | |
0 | 1482 } |
1385 | 1483 public void epilogue() { |
1484 } | |
1485 }; | |
1486 VM.getVM().getObjectHeap().iterateRaw(iterator); | |
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1487 } else if (type.equals("heap")) { |
1385 | 1488 HeapVisitor iterator = new DefaultHeapVisitor() { |
1489 public boolean doObj(Oop obj) { | |
1490 int index = 0; | |
1491 Address start = obj.getHandle(); | |
1492 long end = obj.getObjectSize(); | |
1493 while (index < end) { | |
1494 Address val = start.getAddressAt(index); | |
0 | 1495 if (AddressOps.equal(val, value)) { |
1385 | 1496 out.println("found in " + obj.getHandle()); |
1497 break; | |
0 | 1498 } |
1385 | 1499 index += 4; |
0 | 1500 } |
1385 | 1501 return false; |
1502 } | |
1503 }; | |
1504 VM.getVM().getObjectHeap().iterate(iterator); | |
1505 } else if (type.equals("codecache")) { | |
1506 CodeCacheVisitor v = new CodeCacheVisitor() { | |
1507 public void prologue(Address start, Address end) { | |
1508 } | |
1509 public void visit(CodeBlob blob) { | |
1510 boolean printed = false; | |
1511 Address base = blob.getAddress(); | |
1512 Address end = base.addOffsetTo(blob.getSize()); | |
1513 while (base != null && base.lessThan(end)) { | |
1514 Address val = base.getAddressAt(0); | |
1515 if (AddressOps.equal(val, value)) { | |
1516 if (!printed) { | |
1517 printed = true; | |
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1518 try { |
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1519 blob.printOn(out); |
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1520 } catch (Exception e) { |
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1521 out.println("Exception printing blob at " + base); |
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1522 e.printStackTrace(); |
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1523 } |
0 | 1524 } |
1385 | 1525 out.println("found at " + base + "\n"); |
0 | 1526 } |
1385 | 1527 base = base.addOffsetTo(stride); |
0 | 1528 } |
1385 | 1529 } |
1530 public void epilogue() { | |
1531 } | |
0 | 1532 |
1533 | |
1385 | 1534 }; |
1535 VM.getVM().getCodeCache().iterate(v); | |
0 | 1536 |
1537 } | |
1538 } | |
1539 }, | |
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1540 new Command("dumpcodecache", "dumpcodecache", false) { |
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1541 public void doit(Tokens t) { |
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1542 if (t.countTokens() != 0) { |
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1543 usage(); |
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1544 } else { |
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1545 final PrintStream fout = out; |
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1546 final HTMLGenerator gen = new HTMLGenerator(false); |
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1547 CodeCacheVisitor v = new CodeCacheVisitor() { |
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1548 public void prologue(Address start, Address end) { |
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1549 } |
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1550 public void visit(CodeBlob blob) { |
1748 | 1551 fout.println(gen.genHTML(blob.contentBegin())); |
1040
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1552 } |
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1553 public void epilogue() { |
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1554 } |
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1555 |
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1556 |
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1557 }; |
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1558 VM.getVM().getCodeCache().iterate(v); |
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1559 } |
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1560 } |
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1561 }, |
0 | 1562 new Command("where", "where { -a | id }", false) { |
1563 public void doit(Tokens t) { | |
1564 if (t.countTokens() != 1) { | |
1565 usage(); | |
1566 } else { | |
1567 String name = t.nextToken(); | |
1568 Threads threads = VM.getVM().getThreads(); | |
1569 boolean all = name.equals("-a"); | |
1570 for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) { | |
1571 ByteArrayOutputStream bos = new ByteArrayOutputStream(); | |
1572 thread.printThreadIDOn(new PrintStream(bos)); | |
1573 if (all || bos.toString().equals(name)) { | |
8750 | 1574 out.println("Thread " + bos.toString() + " Address: " + thread.getAddress()); |
0 | 1575 HTMLGenerator gen = new HTMLGenerator(false); |
1385 | 1576 try { |
1577 out.println(gen.genHTMLForJavaStackTrace(thread)); | |
1578 } catch (Exception e) { | |
1579 err.println("Error: " + e); | |
1580 if (verboseExceptions) { | |
1581 e.printStackTrace(err); | |
1582 } | |
1583 } | |
0 | 1584 if (!all) return; |
1585 } | |
1586 } | |
1587 if (!all) out.println("Couldn't find thread " + name); | |
1588 } | |
1589 } | |
1590 }, | |
1385 | 1591 new Command("thread", "thread { -a | id }", false) { |
1592 public void doit(Tokens t) { | |
1593 if (t.countTokens() != 1) { | |
1594 usage(); | |
1595 } else { | |
1596 String name = t.nextToken(); | |
1597 Threads threads = VM.getVM().getThreads(); | |
1598 boolean all = name.equals("-a"); | |
1599 for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) { | |
1600 ByteArrayOutputStream bos = new ByteArrayOutputStream(); | |
1601 thread.printThreadIDOn(new PrintStream(bos)); | |
1602 if (all || bos.toString().equals(name)) { | |
8750 | 1603 out.println("Thread " + bos.toString() + " Address " + thread.getAddress()); |
1385 | 1604 if (!all) return; |
1605 } | |
1606 } | |
1607 out.println("Couldn't find thread " + name); | |
1608 } | |
1609 } | |
1610 }, | |
0 | 1611 |
1612 new Command("threads", false) { | |
1613 public void doit(Tokens t) { | |
1614 if (t.countTokens() != 0) { | |
1615 usage(); | |
1616 } else { | |
1617 Threads threads = VM.getVM().getThreads(); | |
1618 for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) { | |
1619 thread.printThreadIDOn(out); | |
1620 out.println(" " + thread.getThreadName()); | |
1621 } | |
1622 } | |
1623 } | |
1624 }, | |
1625 | |
1626 new Command("livenmethods", false) { | |
1627 public void doit(Tokens t) { | |
1628 if (t.countTokens() != 0) { | |
1629 usage(); | |
1630 } else { | |
1631 ArrayList nmethods = new ArrayList(); | |
1632 Threads threads = VM.getVM().getThreads(); | |
1633 HTMLGenerator gen = new HTMLGenerator(false); | |
1634 for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) { | |
1635 try { | |
1636 for (JavaVFrame vf = thread.getLastJavaVFrameDbg(); vf != null; vf = vf.javaSender()) { | |
1637 if (vf instanceof CompiledVFrame) { | |
1638 NMethod c = ((CompiledVFrame)vf).getCode(); | |
1639 if (!nmethods.contains(c)) { | |
1640 nmethods.add(c); | |
1641 out.println(gen.genHTML(c)); | |
1642 } | |
1643 } | |
1644 } | |
1645 } catch (Exception e) { | |
1646 e.printStackTrace(); | |
1647 } | |
1648 } | |
1649 } | |
1650 } | |
1651 }, | |
1652 new Command("universe", false) { | |
1653 public void doit(Tokens t) { | |
1654 if (t.countTokens() != 0) { | |
1655 usage(); | |
1656 } else { | |
1657 Universe u = VM.getVM().getUniverse(); | |
1658 out.println("Heap Parameters:"); | |
1659 u.heap().printOn(out); | |
1660 } | |
1661 } | |
1662 }, | |
1663 new Command("verbose", "verbose true | false", true) { | |
1664 public void doit(Tokens t) { | |
1665 if (t.countTokens() != 1) { | |
1666 usage(); | |
1667 } else { | |
1668 verboseExceptions = Boolean.valueOf(t.nextToken()).booleanValue(); | |
1669 } | |
1670 } | |
1671 }, | |
1672 new Command("assert", "assert true | false", true) { | |
1673 public void doit(Tokens t) { | |
1674 if (t.countTokens() != 1) { | |
1675 usage(); | |
1676 } else { | |
1677 Assert.ASSERTS_ENABLED = Boolean.valueOf(t.nextToken()).booleanValue(); | |
1678 } | |
1679 } | |
1680 }, | |
1681 }; | |
1682 | |
1683 private boolean verboseExceptions = false; | |
1684 private ArrayList history = new ArrayList(); | |
1685 private HashMap commands = new HashMap(); | |
1686 private boolean doEcho = false; | |
1687 | |
1688 private Command findCommand(String key) { | |
1689 return (Command)commands.get(key); | |
1690 } | |
1691 | |
1692 public void printPrompt() { | |
1693 out.print("hsdb> "); | |
1694 } | |
1695 | |
1696 private DebuggerInterface debugger; | |
1697 private HotSpotAgent agent; | |
1698 private JSJavaScriptEngine jsengine; | |
1699 private BufferedReader in; | |
1700 private PrintStream out; | |
1701 private PrintStream err; | |
1702 | |
1703 // called before debuggee attach | |
1704 private void preAttach() { | |
1705 // nothing for now.. | |
1706 } | |
1707 | |
1708 // called after debuggee attach | |
1709 private void postAttach() { | |
1710 // create JavaScript engine and start it | |
1711 jsengine = new JSJavaScriptEngine() { | |
1712 private ObjectReader reader = new ObjectReader(); | |
1713 private JSJavaFactory factory = new JSJavaFactoryImpl(); | |
1714 public ObjectReader getObjectReader() { | |
1715 return reader; | |
1716 } | |
1717 public JSJavaFactory getJSJavaFactory() { | |
1718 return factory; | |
1719 } | |
1720 protected void quit() { | |
1721 debugger.detach(); | |
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1722 quit = true; |
0 | 1723 } |
1724 protected BufferedReader getInputReader() { | |
1725 return in; | |
1726 } | |
1727 protected PrintStream getOutputStream() { | |
1728 return out; | |
1729 } | |
1730 protected PrintStream getErrorStream() { | |
1731 return err; | |
1732 } | |
1733 }; | |
1734 try { | |
1735 jsengine.defineFunction(this, | |
1736 this.getClass().getMethod("registerCommand", | |
1737 new Class[] { | |
1738 String.class, String.class, String.class | |
1739 })); | |
1740 } catch (NoSuchMethodException exp) { | |
1741 // should not happen, see below...!! | |
1742 exp.printStackTrace(); | |
1743 } | |
1744 jsengine.start(); | |
1745 } | |
1746 | |
1747 public void registerCommand(String cmd, String usage, final String func) { | |
1748 commands.put(cmd, new Command(cmd, usage, false) { | |
1749 public void doit(Tokens t) { | |
1750 final int len = t.countTokens(); | |
1751 Object[] args = new Object[len]; | |
1752 for (int i = 0; i < len; i++) { | |
1753 args[i] = t.nextToken(); | |
1754 } | |
1755 jsengine.call(func, args); | |
1756 } | |
1757 }); | |
1758 } | |
1759 | |
1760 public void setOutput(PrintStream o) { | |
1761 out = o; | |
1762 } | |
1763 | |
1764 public void setErr(PrintStream e) { | |
1765 err = e; | |
1766 } | |
1767 | |
1768 public CommandProcessor(DebuggerInterface debugger, BufferedReader in, PrintStream out, PrintStream err) { | |
1769 this.debugger = debugger; | |
1770 this.agent = debugger.getAgent(); | |
1771 this.in = in; | |
1772 this.out = out; | |
1773 this.err = err; | |
1774 for (int i = 0; i < commandList.length; i++) { | |
1775 Command c = commandList[i]; | |
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1776 if (commands.get(c.name) != null) { |
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1777 throw new InternalError(c.name + " has multiple definitions"); |
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1778 } |
0 | 1779 commands.put(c.name, c); |
1780 } | |
1781 if (debugger.isAttached()) { | |
1782 postAttach(); | |
1783 } | |
1784 } | |
1785 | |
1786 | |
1787 public void run(boolean prompt) { | |
1788 // Process interactive commands. | |
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1789 while (!quit) { |
0 | 1790 if (prompt) printPrompt(); |
1791 String ln = null; | |
1792 try { | |
1793 ln = in.readLine(); | |
1794 } catch (IOException e) { | |
1795 } | |
1796 if (ln == null) { | |
1797 if (prompt) err.println("Input stream closed."); | |
1798 return; | |
1799 } | |
1800 | |
3939 | 1801 executeCommand(ln, prompt); |
0 | 1802 } |
1803 } | |
1804 | |
1385 | 1805 static Pattern historyPattern = Pattern.compile("((!\\*)|(!\\$)|(!!-?)|(!-?[0-9][0-9]*)|(![a-zA-Z][^ ]*))"); |
0 | 1806 |
3939 | 1807 public void executeCommand(String ln, boolean putInHistory) { |
0 | 1808 if (ln.indexOf('!') != -1) { |
1809 int size = history.size(); | |
1810 if (size == 0) { | |
1811 ln = ""; | |
1812 err.println("History is empty"); | |
1813 } else { | |
1814 StringBuffer result = new StringBuffer(); | |
1815 Matcher m = historyPattern.matcher(ln); | |
1816 int start = 0; | |
1817 while (m.find()) { | |
1818 if (m.start() > start) { | |
1819 result.append(ln.substring(start, m.start() - start)); | |
1820 } | |
1821 start = m.end(); | |
1822 | |
1823 String cmd = m.group(); | |
1824 if (cmd.equals("!!")) { | |
1825 result.append((String)history.get(history.size() - 1)); | |
1826 } else if (cmd.equals("!!-")) { | |
1827 Tokens item = new Tokens((String)history.get(history.size() - 1)); | |
1828 item.trim(1); | |
1829 result.append(item.join(" ")); | |
1830 } else if (cmd.equals("!*")) { | |
1831 Tokens item = new Tokens((String)history.get(history.size() - 1)); | |
1832 item.nextToken(); | |
1833 result.append(item.join(" ")); | |
1834 } else if (cmd.equals("!$")) { | |
1835 Tokens item = new Tokens((String)history.get(history.size() - 1)); | |
1836 result.append(item.at(item.countTokens() - 1)); | |
1837 } else { | |
1838 String tail = cmd.substring(1); | |
1385 | 1839 switch (tail.charAt(0)) { |
1840 case '0': | |
1841 case '1': | |
1842 case '2': | |
1843 case '3': | |
1844 case '4': | |
1845 case '5': | |
1846 case '6': | |
1847 case '7': | |
1848 case '8': | |
1849 case '9': | |
1850 case '-': { | |
1851 int index = Integer.parseInt(tail); | |
1852 if (index < 0) { | |
1853 index = history.size() + index; | |
1854 } | |
1855 if (index > size) { | |
1856 err.println("No such history item"); | |
1857 } else { | |
1858 result.append((String)history.get(index)); | |
1859 } | |
1860 break; | |
0 | 1861 } |
1385 | 1862 default: { |
1863 for (int i = history.size() - 1; i >= 0; i--) { | |
1864 String s = (String)history.get(i); | |
1865 if (s.startsWith(tail)) { | |
1866 result.append(s); | |
1867 } | |
1868 } | |
1869 } | |
0 | 1870 } |
1871 } | |
1872 } | |
1873 if (result.length() == 0) { | |
1874 err.println("malformed history reference"); | |
1875 ln = ""; | |
1876 } else { | |
1877 if (start < ln.length()) { | |
1878 result.append(ln.substring(start)); | |
1879 } | |
1880 ln = result.toString(); | |
1881 if (!doEcho) { | |
1882 out.println(ln); | |
1883 } | |
1884 } | |
1885 } | |
1886 } | |
1887 | |
1888 if (doEcho) { | |
1889 out.println("+ " + ln); | |
1890 } | |
1891 | |
1892 PrintStream redirect = null; | |
1893 Tokens t = new Tokens(ln); | |
1894 if (t.hasMoreTokens()) { | |
1895 boolean error = false; | |
3939 | 1896 if (putInHistory) history.add(ln); |
0 | 1897 int len = t.countTokens(); |
1898 if (len > 2) { | |
1899 String r = t.at(len - 2); | |
1900 if (r.equals(">") || r.equals(">>")) { | |
1901 boolean append = r.length() == 2; | |
1902 String file = t.at(len - 1); | |
1903 try { | |
1904 redirect = new PrintStream(new BufferedOutputStream(new FileOutputStream(file, append))); | |
1905 t.trim(2); | |
1906 } catch (Exception e) { | |
1907 out.println("Error: " + e); | |
1908 if (verboseExceptions) { | |
1909 e.printStackTrace(out); | |
1910 } | |
1911 error = true; | |
1912 } | |
1913 } | |
1914 } | |
1915 if (!error) { | |
1916 PrintStream savedout = out; | |
1917 if (redirect != null) { | |
1918 out = redirect; | |
1919 } | |
1920 try { | |
1921 executeCommand(t); | |
1922 } catch (Exception e) { | |
1923 err.println("Error: " + e); | |
1924 if (verboseExceptions) { | |
1925 e.printStackTrace(err); | |
1926 } | |
1927 } finally { | |
1928 if (redirect != null) { | |
1929 out = savedout; | |
1930 redirect.close(); | |
1931 } | |
1932 } | |
1933 } | |
1934 } | |
1935 } | |
1936 | |
1937 void executeCommand(Tokens args) { | |
1938 String cmd = args.nextToken(); | |
1939 | |
1940 Command doit = findCommand(cmd); | |
1941 | |
1942 /* | |
1943 * Check for an unknown command | |
1944 */ | |
1945 if (doit == null) { | |
1946 out.println("Unrecognized command. Try help..."); | |
1947 } else if (!debugger.isAttached() && !doit.okIfDisconnected) { | |
1948 out.println("Command not valid until the attached to a VM"); | |
1949 } else { | |
1950 try { | |
1951 doit.doit(args); | |
1952 } catch (Exception e) { | |
1953 out.println("Error: " + e); | |
1954 if (verboseExceptions) { | |
1955 e.printStackTrace(out); | |
1956 } | |
1957 } | |
1958 } | |
1959 } | |
1960 } |