1 /*
2 * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_SERVICES_DIAGNOSTICCOMMAND_HPP
26 #define SHARE_VM_SERVICES_DIAGNOSTICCOMMAND_HPP
27
28 #include "classfile/vmSymbols.hpp"
29 #include "runtime/arguments.hpp"
30 #include "runtime/os.hpp"
31 #include "runtime/vmThread.hpp"
32 #include "services/diagnosticArgument.hpp"
33 #include "services/diagnosticCommand.hpp"
34 #include "services/diagnosticCommand_ext.hpp"
35 #include "services/diagnosticFramework.hpp"
36 #include "utilities/macros.hpp"
37 #include "utilities/ostream.hpp"
38 #include "oops/method.hpp"
39
40 class HelpDCmd : public DCmdWithParser {
41 protected:
42 DCmdArgument<bool> _all;
43 DCmdArgument<char*> _cmd;
44 public:
45 HelpDCmd(outputStream* output, bool heap);
46 static const char* name() { return "help"; }
47 static const char* description() {
48 return "For more information about a specific command use 'help <command>'. "
49 "With no argument this will show a list of available commands. "
50 "'help all' will show help for all commands.";
51 }
52 static const char* impact() { return "Low"; }
53 static int num_arguments();
54 virtual void execute(DCmdSource source, TRAPS);
55 };
56
57 class VersionDCmd : public DCmd {
58 public:
59 VersionDCmd(outputStream* output, bool heap) : DCmd(output,heap) { }
60 static const char* name() { return "VM.version"; }
61 static const char* description() {
62 return "Print JVM version information.";
63 }
64 static const char* impact() { return "Low"; }
65 static const JavaPermission permission() {
66 JavaPermission p = {"java.util.PropertyPermission",
67 "java.vm.version", "read"};
68 return p;
69 }
70 static int num_arguments() { return 0; }
71 virtual void execute(DCmdSource source, TRAPS);
72 };
73
74 class CommandLineDCmd : public DCmd {
75 public:
76 CommandLineDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }
77 static const char* name() { return "VM.command_line"; }
78 static const char* description() {
79 return "Print the command line used to start this VM instance.";
80 }
81 static const char* impact() { return "Low"; }
82 static const JavaPermission permission() {
83 JavaPermission p = {"java.lang.management.ManagementPermission",
84 "monitor", NULL};
85 return p;
86 }
87 static int num_arguments() { return 0; }
88 virtual void execute(DCmdSource source, TRAPS) {
89 Arguments::print_on(_output);
90 }
91 };
92
93 // See also: get_system_properties in attachListener.cpp
94 class PrintSystemPropertiesDCmd : public DCmd {
95 public:
96 PrintSystemPropertiesDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }
97 static const char* name() { return "VM.system_properties"; }
98 static const char* description() {
99 return "Print system properties.";
100 }
101 static const char* impact() {
102 return "Low";
103 }
104 static const JavaPermission permission() {
105 JavaPermission p = {"java.util.PropertyPermission",
106 "*", "read"};
107 return p;
108 }
109 static int num_arguments() { return 0; }
110 virtual void execute(DCmdSource source, TRAPS);
111 };
112
113 // See also: print_flag in attachListener.cpp
114 class PrintVMFlagsDCmd : public DCmdWithParser {
115 protected:
116 DCmdArgument<bool> _all;
117 public:
118 PrintVMFlagsDCmd(outputStream* output, bool heap);
119 static const char* name() { return "VM.flags"; }
120 static const char* description() {
121 return "Print VM flag options and their current values.";
122 }
123 static const char* impact() {
124 return "Low";
125 }
126 static const JavaPermission permission() {
127 JavaPermission p = {"java.lang.management.ManagementPermission",
128 "monitor", NULL};
129 return p;
130 }
131 static int num_arguments();
132 virtual void execute(DCmdSource source, TRAPS);
133 };
134
135 class SetVMFlagDCmd : public DCmdWithParser {
136 protected:
137 DCmdArgument<char*> _flag;
138 DCmdArgument<char*> _value;
139
140 public:
141 SetVMFlagDCmd(outputStream* output, bool heap);
142 static const char* name() { return "VM.set_flag"; }
143 static const char* description() {
144 return "Sets VM flag option using the provided value.";
145 }
146 static const char* impact() {
147 return "Low";
148 }
149 static const JavaPermission permission() {
150 JavaPermission p = {"java.lang.management.ManagementPermission",
151 "control", NULL};
152 return p;
153 }
154 static int num_arguments();
155 virtual void execute(DCmdSource source, TRAPS);
156 };
157
158 class JVMTIDataDumpDCmd : public DCmd {
159 public:
160 JVMTIDataDumpDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }
161 static const char* name() { return "JVMTI.data_dump"; }
162 static const char* description() {
163 return "Signal the JVM to do a data-dump request for JVMTI.";
164 }
165 static const char* impact() {
166 return "High";
167 }
168 static const JavaPermission permission() {
169 JavaPermission p = {"java.lang.management.ManagementPermission",
170 "monitor", NULL};
171 return p;
172 }
173 static int num_arguments() { return 0; }
174 virtual void execute(DCmdSource source, TRAPS);
175 };
176
177 class VMDynamicLibrariesDCmd : public DCmd {
178 public:
179 VMDynamicLibrariesDCmd(outputStream* output, bool heap);
180 static const char* name() {
181 return "VM.dynlibs";
182 }
183 static const char* description() {
184 return "Print loaded dynamic libraries.";
185 }
186 static const char* impact() {
187 return "Low";
188 }
189 static const JavaPermission permission() {
190 JavaPermission p = {"java.lang.management.ManagementPermission",
191 "monitor", NULL};
192 return p;
193 }
194 static int num_arguments() {
195 return 0;
196 };
197 virtual void execute(DCmdSource source, TRAPS);
198 };
199
200 class VMUptimeDCmd : public DCmdWithParser {
201 protected:
202 DCmdArgument<bool> _date;
203 public:
204 VMUptimeDCmd(outputStream* output, bool heap);
205 static const char* name() { return "VM.uptime"; }
206 static const char* description() {
207 return "Print VM uptime.";
208 }
209 static const char* impact() {
210 return "Low";
211 }
212 static int num_arguments();
213 virtual void execute(DCmdSource source, TRAPS);
214 };
215
216 class SystemGCDCmd : public DCmd {
217 public:
218 SystemGCDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }
219 static const char* name() { return "GC.run"; }
220 static const char* description() {
221 return "Call java.lang.System.gc().";
222 }
223 static const char* impact() {
224 return "Medium: Depends on Java heap size and content.";
225 }
226 static int num_arguments() { return 0; }
227 virtual void execute(DCmdSource source, TRAPS);
228 };
229
230 class RunFinalizationDCmd : public DCmd {
231 public:
232 RunFinalizationDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }
233 static const char* name() { return "GC.run_finalization"; }
234 static const char* description() {
235 return "Call java.lang.System.runFinalization().";
236 }
237 static const char* impact() {
238 return "Medium: Depends on Java content.";
239 }
240 static int num_arguments() { return 0; }
241 virtual void execute(DCmdSource source, TRAPS);
242 };
243
244 class HeapInfoDCmd : public DCmd {
245 public:
246 HeapInfoDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }
247 static const char* name() { return "GC.heap_info"; }
248 static const char* description() {
249 return "Provide generic Java heap information.";
250 }
251 static const char* impact() {
252 return "Medium";
253 }
254 static int num_arguments() { return 0; }
255 static const JavaPermission permission() {
256 JavaPermission p = {"java.lang.management.ManagementPermission",
257 "monitor", NULL};
258 return p;
259 }
260
261 virtual void execute(DCmdSource source, TRAPS);
262 };
263
264 class FinalizerInfoDCmd : public DCmd {
265 public:
266 FinalizerInfoDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }
267 static const char* name() { return "GC.finalizer_info"; }
268 static const char* description() {
269 return "Provide information about Java finalization queue.";
270 }
271 static const char* impact() {
272 return "Medium";
273 }
274 static int num_arguments() { return 0; }
275 static const JavaPermission permission() {
276 JavaPermission p = {"java.lang.management.ManagementPermission",
277 "monitor", NULL};
278 return p;
279 }
280
281 virtual void execute(DCmdSource source, TRAPS);
282 };
283
284 #if INCLUDE_SERVICES // Heap dumping supported
285 // See also: dump_heap in attachListener.cpp
286 class HeapDumpDCmd : public DCmdWithParser {
287 protected:
288 DCmdArgument<char*> _filename;
289 DCmdArgument<bool> _all;
290 public:
291 HeapDumpDCmd(outputStream* output, bool heap);
292 static const char* name() {
293 return "GC.heap_dump";
294 }
295 static const char* description() {
296 return "Generate a HPROF format dump of the Java heap.";
297 }
298 static const char* impact() {
299 return "High: Depends on Java heap size and content. "
300 "Request a full GC unless the '-all' option is specified.";
301 }
302 static const JavaPermission permission() {
303 JavaPermission p = {"java.lang.management.ManagementPermission",
304 "monitor", NULL};
305 return p;
306 }
307 static int num_arguments();
308 virtual void execute(DCmdSource source, TRAPS);
309 };
310 #endif // INCLUDE_SERVICES
311
312 // See also: inspectheap in attachListener.cpp
313 class ClassHistogramDCmd : public DCmdWithParser {
314 protected:
315 DCmdArgument<bool> _all;
316 public:
317 ClassHistogramDCmd(outputStream* output, bool heap);
318 static const char* name() {
319 return "GC.class_histogram";
320 }
321 static const char* description() {
322 return "Provide statistics about the Java heap usage.";
323 }
324 static const char* impact() {
325 return "High: Depends on Java heap size and content.";
326 }
327 static const JavaPermission permission() {
328 JavaPermission p = {"java.lang.management.ManagementPermission",
329 "monitor", NULL};
330 return p;
331 }
332 static int num_arguments();
333 virtual void execute(DCmdSource source, TRAPS);
334 };
335
336 class ClassStatsDCmd : public DCmdWithParser {
337 protected:
338 DCmdArgument<bool> _all;
339 DCmdArgument<bool> _csv;
340 DCmdArgument<bool> _help;
341 DCmdArgument<char*> _columns;
342 public:
343 ClassStatsDCmd(outputStream* output, bool heap);
344 static const char* name() {
345 return "GC.class_stats";
346 }
347 static const char* description() {
348 return "Provide statistics about Java class meta data. Requires -XX:+UnlockDiagnosticVMOptions.";
349 }
350 static const char* impact() {
351 return "High: Depends on Java heap size and content.";
352 }
353 static int num_arguments();
354 virtual void execute(DCmdSource source, TRAPS);
355 };
356
357
358 class ClassHierarchyDCmd : public DCmdWithParser {
359 protected:
360 DCmdArgument<bool> _print_interfaces; // true if inherited interfaces should be printed.
361 DCmdArgument<bool> _print_subclasses; // true if subclasses of the specified classname should be printed.
362 DCmdArgument<char*> _classname; // Optional single class name whose hierarchy should be printed.
363 public:
364 ClassHierarchyDCmd(outputStream* output, bool heap);
365 static const char* name() {
366 return "VM.class_hierarchy";
367 }
368 static const char* description() {
369 return "Print a list of all loaded classes, indented to show the class hiearchy. "
370 "The name of each class is followed by the ClassLoaderData* of its ClassLoader, "
371 "or \"null\" if loaded by the bootstrap class loader.";
372 }
373 static const char* impact() {
374 return "Medium: Depends on number of loaded classes.";
375 }
376 static const JavaPermission permission() {
377 JavaPermission p = {"java.lang.management.ManagementPermission",
378 "monitor", NULL};
379 return p;
380 }
381 static int num_arguments();
382 virtual void execute(DCmdSource source, TRAPS);
383 };
384
385 class TouchedMethodsDCmd : public DCmdWithParser {
386 public:
387 TouchedMethodsDCmd(outputStream* output, bool heap);
388 static const char* name() {
389 return "VM.print_touched_methods";
390 }
391 static const char* description() {
392 return "Print all methods that have ever been touched during the lifetime of this JVM.";
393 }
394 static const char* impact() {
395 return "Medium: Depends on Java content.";
396 }
397 static int num_arguments();
398 virtual void execute(DCmdSource source, TRAPS);
399 };
400
401 // See also: thread_dump in attachListener.cpp
402 class ThreadDumpDCmd : public DCmdWithParser {
403 protected:
404 DCmdArgument<bool> _locks;
405 public:
406 ThreadDumpDCmd(outputStream* output, bool heap);
407 static const char* name() { return "Thread.print"; }
408 static const char* description() {
409 return "Print all threads with stacktraces.";
410 }
411 static const char* impact() {
412 return "Medium: Depends on the number of threads.";
413 }
414 static const JavaPermission permission() {
415 JavaPermission p = {"java.lang.management.ManagementPermission",
416 "monitor", NULL};
417 return p;
418 }
419 static int num_arguments();
420 virtual void execute(DCmdSource source, TRAPS);
421 };
422
423 // Enhanced JMX Agent support
424
425 class JMXStartRemoteDCmd : public DCmdWithParser {
426
427 // Explicitly list all properties that could be
428 // passed to Agent.startRemoteManagementAgent()
429 // com.sun.management is omitted
430
431 DCmdArgument<char *> _config_file;
432 DCmdArgument<char *> _jmxremote_host;
433 DCmdArgument<char *> _jmxremote_port;
434 DCmdArgument<char *> _jmxremote_rmi_port;
435 DCmdArgument<char *> _jmxremote_ssl;
436 DCmdArgument<char *> _jmxremote_registry_ssl;
437 DCmdArgument<char *> _jmxremote_authenticate;
438 DCmdArgument<char *> _jmxremote_password_file;
439 DCmdArgument<char *> _jmxremote_access_file;
440 DCmdArgument<char *> _jmxremote_login_config;
441 DCmdArgument<char *> _jmxremote_ssl_enabled_cipher_suites;
442 DCmdArgument<char *> _jmxremote_ssl_enabled_protocols;
443 DCmdArgument<char *> _jmxremote_ssl_need_client_auth;
444 DCmdArgument<char *> _jmxremote_ssl_config_file;
445
446 // JDP support
447 // Keep autodiscovery char* not bool to pass true/false
448 // as property value to java level.
449 DCmdArgument<char *> _jmxremote_autodiscovery;
450 DCmdArgument<jlong> _jdp_port;
451 DCmdArgument<char *> _jdp_address;
452 DCmdArgument<char *> _jdp_source_addr;
453 DCmdArgument<jlong> _jdp_ttl;
454 DCmdArgument<jlong> _jdp_pause;
455 DCmdArgument<char *> _jdp_name;
456
457 public:
458 JMXStartRemoteDCmd(outputStream *output, bool heap_allocated);
459
460 static const char *name() {
461 return "ManagementAgent.start";
462 }
463
464 static const char *description() {
465 return "Start remote management agent.";
466 }
467
468 static int num_arguments();
469
470 virtual void execute(DCmdSource source, TRAPS);
471
472 };
473
474 class JMXStartLocalDCmd : public DCmd {
475
476 // Explicitly request start of local agent,
477 // it will not be started by start dcmd
478
479
480 public:
481 JMXStartLocalDCmd(outputStream *output, bool heap_allocated);
482
483 static const char *name() {
484 return "ManagementAgent.start_local";
485 }
486
487 static const char *description() {
488 return "Start local management agent.";
489 }
490
491 virtual void execute(DCmdSource source, TRAPS);
492
493 };
494
495 class JMXStopRemoteDCmd : public DCmd {
496 public:
497 JMXStopRemoteDCmd(outputStream *output, bool heap_allocated) :
498 DCmd(output, heap_allocated) {
499 // Do Nothing
500 }
501
502 static const char *name() {
503 return "ManagementAgent.stop";
504 }
505
506 static const char *description() {
507 return "Stop remote management agent.";
508 }
509
510 virtual void execute(DCmdSource source, TRAPS);
511 };
512
513 // Print the JMX system status
514 class JMXStatusDCmd : public DCmd {
515 public:
516 JMXStatusDCmd(outputStream *output, bool heap_allocated);
517
518 static const char *name() {
519 return "ManagementAgent.status";
520 }
521
522 static const char *description() {
523 return "Print the management agent status.";
524 }
525
526 static const JavaPermission permission() {
527 JavaPermission p = {"java.lang.management.ManagementPermission",
528 "monitor", NULL};
529 return p;
530 }
531
532 virtual void execute(DCmdSource source, TRAPS);
533
534 };
535
536 class RotateGCLogDCmd : public DCmd {
537 public:
538 RotateGCLogDCmd(outputStream* output, bool heap) : DCmd(output, heap) {}
539 static const char* name() { return "GC.rotate_log"; }
540 static const char* description() {
541 return "Force the GC log file to be rotated.";
542 }
543 static const char* impact() { return "Low"; }
544 virtual void execute(DCmdSource source, TRAPS);
545 static int num_arguments() { return 0; }
546 static const JavaPermission permission() {
547 JavaPermission p = {"java.lang.management.ManagementPermission",
548 "control", NULL};
549 return p;
550 }
551 };
552
553 class CompileQueueDCmd : public DCmd {
554 public:
555 CompileQueueDCmd(outputStream* output, bool heap) : DCmd(output, heap) {}
556 static const char* name() {
557 return "Compiler.queue";
558 }
559 static const char* description() {
560 return "Print methods queued for compilation.";
561 }
562 static const char* impact() {
563 return "Low";
564 }
565 static const JavaPermission permission() {
566 JavaPermission p = {"java.lang.management.ManagementPermission",
567 "monitor", NULL};
568 return p;
569 }
570 static int num_arguments() { return 0; }
571 virtual void execute(DCmdSource source, TRAPS);
572 };
573
574 class CodeListDCmd : public DCmd {
575 public:
576 CodeListDCmd(outputStream* output, bool heap) : DCmd(output, heap) {}
577 static const char* name() {
578 return "Compiler.codelist";
579 }
580 static const char* description() {
581 return "Print all compiled methods in code cache that are alive";
582 }
583 static const char* impact() {
584 return "Medium";
585 }
586 static const JavaPermission permission() {
587 JavaPermission p = {"java.lang.management.ManagementPermission",
588 "monitor", NULL};
589 return p;
590 }
591 static int num_arguments() { return 0; }
592 virtual void execute(DCmdSource source, TRAPS);
593 };
594
595
596 class CodeCacheDCmd : public DCmd {
597 public:
598 CodeCacheDCmd(outputStream* output, bool heap) : DCmd(output, heap) {}
599 static const char* name() {
600 return "Compiler.codecache";
601 }
602 static const char* description() {
603 return "Print code cache layout and bounds.";
604 }
605 static const char* impact() {
606 return "Low";
607 }
608 static const JavaPermission permission() {
609 JavaPermission p = {"java.lang.management.ManagementPermission",
610 "monitor", NULL};
611 return p;
612 }
613 static int num_arguments() { return 0; }
614 virtual void execute(DCmdSource source, TRAPS);
615 };
616
617 #endif // SHARE_VM_SERVICES_DIAGNOSTICCOMMAND_HPP