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 #include "precompiled.hpp"
26 #include "classfile/classLoaderStats.hpp"
27 #include "classfile/compactHashtable.hpp"
28 #include "gc/shared/vmGCOperations.hpp"
29 #include "oops/oop.inline.hpp"
30 #include "runtime/globals.hpp"
31 #include "runtime/javaCalls.hpp"
32 #include "runtime/os.hpp"
33 #include "services/diagnosticArgument.hpp"
34 #include "services/diagnosticCommand.hpp"
35 #include "services/diagnosticFramework.hpp"
36 #include "services/heapDumper.hpp"
37 #include "services/management.hpp"
38 #include "services/writeableFlags.hpp"
39 #include "utilities/macros.hpp"
40 #include "oops/objArrayOop.inline.hpp"
41
42 void DCmdRegistrant::register_dcmds(){
43 // Registration of the diagnostic commands
44 // First argument specifies which interfaces will export the command
45 // Second argument specifies if the command is enabled
46 // Third argument specifies if the command is hidden
47 uint32_t full_export = DCmd_Source_Internal | DCmd_Source_AttachAPI
48 | DCmd_Source_MBean;
49 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HelpDCmd>(full_export, true, false));
50 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VersionDCmd>(full_export, true, false));
51 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CommandLineDCmd>(full_export, true, false));
52 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintSystemPropertiesDCmd>(full_export, true, false));
53 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintVMFlagsDCmd>(full_export, true, false));
54 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SetVMFlagDCmd>(full_export, true, false));
55 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMDynamicLibrariesDCmd>(full_export, true, false));
56 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMUptimeDCmd>(full_export, true, false));
57 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SystemGCDCmd>(full_export, true, false));
58 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<RunFinalizationDCmd>(full_export, true, false));
59 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapInfoDCmd>(full_export, true, false));
60 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<FinalizerInfoDCmd>(full_export, true, false));
61 #if INCLUDE_SERVICES // Heap dumping/inspection supported
62 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapDumpDCmd>(DCmd_Source_Internal | DCmd_Source_AttachAPI, true, false));
63 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHistogramDCmd>(full_export, true, false));
64 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassStatsDCmd>(full_export, true, false));
65 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHierarchyDCmd>(full_export, true, false));
66 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SymboltableDCmd>(full_export, true, false));
67 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<StringtableDCmd>(full_export, true, false));
68 #endif // INCLUDE_SERVICES
69 #if INCLUDE_JVMTI
70 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JVMTIDataDumpDCmd>(full_export, true, false));
71 #endif // INCLUDE_JVMTI
72 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ThreadDumpDCmd>(full_export, true, false));
73 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<RotateGCLogDCmd>(full_export, true, false));
74 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassLoaderStatsDCmd>(full_export, true, false));
75 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompileQueueDCmd>(full_export, true, false));
76 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeListDCmd>(full_export, true, false));
77 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeCacheDCmd>(full_export, true, false));
78 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<TouchedMethodsDCmd>(full_export, true, false));
79
80 // Enhanced JMX Agent Support
81 // These commands won't be exported via the DiagnosticCommandMBean until an
82 // appropriate permission is created for them
83 uint32_t jmx_agent_export_flags = DCmd_Source_Internal | DCmd_Source_AttachAPI;
84 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartRemoteDCmd>(jmx_agent_export_flags, true,false));
85 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartLocalDCmd>(jmx_agent_export_flags, true,false));
86 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStopRemoteDCmd>(jmx_agent_export_flags, true,false));
87 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStatusDCmd>(jmx_agent_export_flags, true,false));
88
89 }
90
91 #ifndef HAVE_EXTRA_DCMD
92 void DCmdRegistrant::register_dcmds_ext(){
93 // Do nothing here
94 }
95 #endif
96
97
98 HelpDCmd::HelpDCmd(outputStream* output, bool heap) : DCmdWithParser(output, heap),
99 _all("-all", "Show help for all commands", "BOOLEAN", false, "false"),
100 _cmd("command name", "The name of the command for which we want help",
101 "STRING", false) {
102 _dcmdparser.add_dcmd_option(&_all);
103 _dcmdparser.add_dcmd_argument(&_cmd);
104 };
105
106 void HelpDCmd::execute(DCmdSource source, TRAPS) {
107 if (_all.value()) {
108 GrowableArray<const char*>* cmd_list = DCmdFactory::DCmd_list(source);
109 for (int i = 0; i < cmd_list->length(); i++) {
110 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i),
111 strlen(cmd_list->at(i)));
112 output()->print_cr("%s%s", factory->name(),
113 factory->is_enabled() ? "" : " [disabled]");
114 output()->print_cr("\t%s", factory->description());
115 output()->cr();
116 factory = factory->next();
117 }
118 } else if (_cmd.has_value()) {
119 DCmd* cmd = NULL;
120 DCmdFactory* factory = DCmdFactory::factory(source, _cmd.value(),
121 strlen(_cmd.value()));
122 if (factory != NULL) {
123 output()->print_cr("%s%s", factory->name(),
124 factory->is_enabled() ? "" : " [disabled]");
125 output()->print_cr("%s", factory->description());
126 output()->print_cr("\nImpact: %s", factory->impact());
127 JavaPermission p = factory->permission();
128 if(p._class != NULL) {
129 if(p._action != NULL) {
130 output()->print_cr("\nPermission: %s(%s, %s)",
131 p._class, p._name == NULL ? "null" : p._name, p._action);
132 } else {
133 output()->print_cr("\nPermission: %s(%s)",
134 p._class, p._name == NULL ? "null" : p._name);
135 }
136 }
137 output()->cr();
138 cmd = factory->create_resource_instance(output());
139 if (cmd != NULL) {
140 DCmdMark mark(cmd);
141 cmd->print_help(factory->name());
142 }
143 } else {
144 output()->print_cr("Help unavailable : '%s' : No such command", _cmd.value());
145 }
146 } else {
147 output()->print_cr("The following commands are available:");
148 GrowableArray<const char *>* cmd_list = DCmdFactory::DCmd_list(source);
149 for (int i = 0; i < cmd_list->length(); i++) {
150 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i),
151 strlen(cmd_list->at(i)));
152 output()->print_cr("%s%s", factory->name(),
153 factory->is_enabled() ? "" : " [disabled]");
154 factory = factory->_next;
155 }
156 output()->print_cr("\nFor more information about a specific command use 'help <command>'.");
157 }
158 }
159
160 int HelpDCmd::num_arguments() {
161 ResourceMark rm;
162 HelpDCmd* dcmd = new HelpDCmd(NULL, false);
163 if (dcmd != NULL) {
164 DCmdMark mark(dcmd);
165 return dcmd->_dcmdparser.num_arguments();
166 } else {
167 return 0;
168 }
169 }
170
171 void VersionDCmd::execute(DCmdSource source, TRAPS) {
172 output()->print_cr("%s version %s", Abstract_VM_Version::vm_name(),
173 Abstract_VM_Version::vm_release());
174 JDK_Version jdk_version = JDK_Version::current();
175 if (jdk_version.update_version() > 0) {
176 output()->print_cr("JDK %d.%d_%02d", jdk_version.major_version(),
177 jdk_version.minor_version(), jdk_version.update_version());
178 } else {
179 output()->print_cr("JDK %d.%d", jdk_version.major_version(),
180 jdk_version.minor_version());
181 }
182 }
183
184 PrintVMFlagsDCmd::PrintVMFlagsDCmd(outputStream* output, bool heap) :
185 DCmdWithParser(output, heap),
186 _all("-all", "Print all flags supported by the VM", "BOOLEAN", false, "false") {
187 _dcmdparser.add_dcmd_option(&_all);
188 }
189
190 void PrintVMFlagsDCmd::execute(DCmdSource source, TRAPS) {
191 if (_all.value()) {
192 CommandLineFlags::printFlags(output(), true);
193 } else {
194 CommandLineFlags::printSetFlags(output());
195 }
196 }
197
198 int PrintVMFlagsDCmd::num_arguments() {
199 ResourceMark rm;
200 PrintVMFlagsDCmd* dcmd = new PrintVMFlagsDCmd(NULL, false);
201 if (dcmd != NULL) {
202 DCmdMark mark(dcmd);
203 return dcmd->_dcmdparser.num_arguments();
204 } else {
205 return 0;
206 }
207 }
208
209 SetVMFlagDCmd::SetVMFlagDCmd(outputStream* output, bool heap) :
210 DCmdWithParser(output, heap),
211 _flag("flag name", "The name of the flag we want to set",
212 "STRING", true),
213 _value("string value", "The value we want to set", "STRING", false) {
214 _dcmdparser.add_dcmd_argument(&_flag);
215 _dcmdparser.add_dcmd_argument(&_value);
216 }
217
218 void SetVMFlagDCmd::execute(DCmdSource source, TRAPS) {
219 const char* val = NULL;
220 if (_value.value() != NULL) {
221 val = _value.value();
222 }
223
224 FormatBuffer<80> err_msg("%s", "");
225 int ret = WriteableFlags::set_flag(_flag.value(), val, Flag::MANAGEMENT, err_msg);
226
227 if (ret != Flag::SUCCESS) {
228 output()->print_cr("%s", err_msg.buffer());
229 }
230 }
231
232 int SetVMFlagDCmd::num_arguments() {
233 ResourceMark rm;
234 SetVMFlagDCmd* dcmd = new SetVMFlagDCmd(NULL, false);
235 if (dcmd != NULL) {
236 DCmdMark mark(dcmd);
237 return dcmd->_dcmdparser.num_arguments();
238 } else {
239 return 0;
240 }
241 }
242
243 void JVMTIDataDumpDCmd::execute(DCmdSource source, TRAPS) {
244 if (JvmtiExport::should_post_data_dump()) {
245 JvmtiExport::post_data_dump();
246 }
247 }
248
249 void PrintSystemPropertiesDCmd::execute(DCmdSource source, TRAPS) {
250 // load sun.misc.VMSupport
251 Symbol* klass = vmSymbols::sun_misc_VMSupport();
252 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK);
253 instanceKlassHandle ik (THREAD, k);
254 if (ik->should_be_initialized()) {
255 ik->initialize(THREAD);
256 }
257 if (HAS_PENDING_EXCEPTION) {
258 java_lang_Throwable::print(PENDING_EXCEPTION, output());
259 output()->cr();
260 CLEAR_PENDING_EXCEPTION;
261 return;
262 }
263
264 // invoke the serializePropertiesToByteArray method
265 JavaValue result(T_OBJECT);
266 JavaCallArguments args;
267
268 Symbol* signature = vmSymbols::serializePropertiesToByteArray_signature();
269 JavaCalls::call_static(&result,
270 ik,
271 vmSymbols::serializePropertiesToByteArray_name(),
272 signature,
273 &args,
274 THREAD);
275 if (HAS_PENDING_EXCEPTION) {
276 java_lang_Throwable::print(PENDING_EXCEPTION, output());
277 output()->cr();
278 CLEAR_PENDING_EXCEPTION;
279 return;
280 }
281
282 // The result should be a [B
283 oop res = (oop)result.get_jobject();
284 assert(res->is_typeArray(), "just checking");
285 assert(TypeArrayKlass::cast(res->klass())->element_type() == T_BYTE, "just checking");
286
287 // copy the bytes to the output stream
288 typeArrayOop ba = typeArrayOop(res);
289 jbyte* addr = typeArrayOop(res)->byte_at_addr(0);
290 output()->print_raw((const char*)addr, ba->length());
291 }
292
293 VMUptimeDCmd::VMUptimeDCmd(outputStream* output, bool heap) :
294 DCmdWithParser(output, heap),
295 _date("-date", "Add a prefix with current date", "BOOLEAN", false, "false") {
296 _dcmdparser.add_dcmd_option(&_date);
297 }
298
299 void VMUptimeDCmd::execute(DCmdSource source, TRAPS) {
300 if (_date.value()) {
301 output()->date_stamp(true, "", ": ");
302 }
303 output()->time_stamp().update_to(tty->time_stamp().ticks());
304 output()->stamp();
305 output()->print_cr(" s");
306 }
307
308 int VMUptimeDCmd::num_arguments() {
309 ResourceMark rm;
310 VMUptimeDCmd* dcmd = new VMUptimeDCmd(NULL, false);
311 if (dcmd != NULL) {
312 DCmdMark mark(dcmd);
313 return dcmd->_dcmdparser.num_arguments();
314 } else {
315 return 0;
316 }
317 }
318
319 void SystemGCDCmd::execute(DCmdSource source, TRAPS) {
320 if (!DisableExplicitGC) {
321 Universe::heap()->collect(GCCause::_dcmd_gc_run);
322 } else {
323 output()->print_cr("Explicit GC is disabled, no GC has been performed.");
324 }
325 }
326
327 void RunFinalizationDCmd::execute(DCmdSource source, TRAPS) {
328 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_System(),
329 true, CHECK);
330 instanceKlassHandle klass(THREAD, k);
331 JavaValue result(T_VOID);
332 JavaCalls::call_static(&result, klass,
333 vmSymbols::run_finalization_name(),
334 vmSymbols::void_method_signature(), CHECK);
335 }
336
337 void HeapInfoDCmd::execute(DCmdSource source, TRAPS) {
338 Universe::heap()->print_on(output());
339 }
340
341 void FinalizerInfoDCmd::execute(DCmdSource source, TRAPS) {
342 ResourceMark rm;
343
344
345 Klass* k = SystemDictionary::resolve_or_null(
346 vmSymbols::finalizer_histogram_klass(), THREAD);
347 assert(k != NULL, "FinalizerHistogram class is not accessible");
348
349 instanceKlassHandle klass(THREAD, k);
350 JavaValue result(T_ARRAY);
351
352 // We are calling lang.ref.FinalizerHistogram.getFinalizerHistogram() method
353 // and expect it to return array of FinalizerHistogramEntry as Object[]
354
355 JavaCalls::call_static(&result, klass,
356 vmSymbols::get_finalizer_histogram_name(),
357 vmSymbols::void_finalizer_histogram_entry_array_signature(), CHECK);
358
359 objArrayOop result_oop = (objArrayOop) result.get_jobject();
360 if (result_oop->length() == 0) {
361 output()->print_cr("No instances waiting for finalization found");
362 return;
363 }
364
365 oop foop = result_oop->obj_at(0);
366 InstanceKlass* ik = InstanceKlass::cast(foop->klass());
367
368 fieldDescriptor count_fd, name_fd;
369
370 Klass* count_res = ik->find_field(
371 vmSymbols::finalizer_histogram_entry_count_field(), vmSymbols::int_signature(), &count_fd);
372
373 Klass* name_res = ik->find_field(
374 vmSymbols::finalizer_histogram_entry_name_field(), vmSymbols::string_signature(), &name_fd);
375
376 assert(count_res != NULL && name_res != NULL, "Unexpected layout of FinalizerHistogramEntry");
377
378 output()->print_cr("Unreachable instances waiting for finalization");
379 output()->print_cr("#instances class name");
380 output()->print_cr("-----------------------");
381
382 for (int i = 0; i < result_oop->length(); ++i) {
383 oop element_oop = result_oop->obj_at(i);
384 oop str_oop = element_oop->obj_field(name_fd.offset());
385 char *name = java_lang_String::as_utf8_string(str_oop);
386 int count = element_oop->int_field(count_fd.offset());
387 output()->print_cr("%10d %s", count, name);
388 }
389 }
390
391 #if INCLUDE_SERVICES // Heap dumping/inspection supported
392 HeapDumpDCmd::HeapDumpDCmd(outputStream* output, bool heap) :
393 DCmdWithParser(output, heap),
394 _filename("filename","Name of the dump file", "STRING",true),
395 _all("-all", "Dump all objects, including unreachable objects",
396 "BOOLEAN", false, "false") {
397 _dcmdparser.add_dcmd_option(&_all);
398 _dcmdparser.add_dcmd_argument(&_filename);
399 }
400
401 void HeapDumpDCmd::execute(DCmdSource source, TRAPS) {
402 // Request a full GC before heap dump if _all is false
403 // This helps reduces the amount of unreachable objects in the dump
404 // and makes it easier to browse.
405 HeapDumper dumper(!_all.value() /* request GC if _all is false*/);
406 int res = dumper.dump(_filename.value());
407 if (res == 0) {
408 output()->print_cr("Heap dump file created");
409 } else {
410 // heap dump failed
411 ResourceMark rm;
412 char* error = dumper.error_as_C_string();
413 if (error == NULL) {
414 output()->print_cr("Dump failed - reason unknown");
415 } else {
416 output()->print_cr("%s", error);
417 }
418 }
419 }
420
421 int HeapDumpDCmd::num_arguments() {
422 ResourceMark rm;
423 HeapDumpDCmd* dcmd = new HeapDumpDCmd(NULL, false);
424 if (dcmd != NULL) {
425 DCmdMark mark(dcmd);
426 return dcmd->_dcmdparser.num_arguments();
427 } else {
428 return 0;
429 }
430 }
431
432 ClassHistogramDCmd::ClassHistogramDCmd(outputStream* output, bool heap) :
433 DCmdWithParser(output, heap),
434 _all("-all", "Inspect all objects, including unreachable objects",
435 "BOOLEAN", false, "false") {
436 _dcmdparser.add_dcmd_option(&_all);
437 }
438
439 void ClassHistogramDCmd::execute(DCmdSource source, TRAPS) {
440 VM_GC_HeapInspection heapop(output(),
441 !_all.value() /* request full gc if false */);
442 VMThread::execute(&heapop);
443 }
444
445 int ClassHistogramDCmd::num_arguments() {
446 ResourceMark rm;
447 ClassHistogramDCmd* dcmd = new ClassHistogramDCmd(NULL, false);
448 if (dcmd != NULL) {
449 DCmdMark mark(dcmd);
450 return dcmd->_dcmdparser.num_arguments();
451 } else {
452 return 0;
453 }
454 }
455
456 #define DEFAULT_COLUMNS "InstBytes,KlassBytes,CpAll,annotations,MethodCount,Bytecodes,MethodAll,ROAll,RWAll,Total"
457 ClassStatsDCmd::ClassStatsDCmd(outputStream* output, bool heap) :
458 DCmdWithParser(output, heap),
459 _csv("-csv", "Print in CSV (comma-separated values) format for spreadsheets",
460 "BOOLEAN", false, "false"),
461 _all("-all", "Show all columns",
462 "BOOLEAN", false, "false"),
463 _help("-help", "Show meaning of all the columns",
464 "BOOLEAN", false, "false"),
465 _columns("columns", "Comma-separated list of all the columns to show. "
466 "If not specified, the following columns are shown: " DEFAULT_COLUMNS,
467 "STRING", false) {
468 _dcmdparser.add_dcmd_option(&_all);
469 _dcmdparser.add_dcmd_option(&_csv);
470 _dcmdparser.add_dcmd_option(&_help);
471 _dcmdparser.add_dcmd_argument(&_columns);
472 }
473
474 void ClassStatsDCmd::execute(DCmdSource source, TRAPS) {
475 if (!UnlockDiagnosticVMOptions) {
476 output()->print_cr("GC.class_stats command requires -XX:+UnlockDiagnosticVMOptions");
477 return;
478 }
479
480 VM_GC_HeapInspection heapop(output(),
481 true /* request_full_gc */);
482 heapop.set_csv_format(_csv.value());
483 heapop.set_print_help(_help.value());
484 heapop.set_print_class_stats(true);
485 if (_all.value()) {
486 if (_columns.has_value()) {
487 output()->print_cr("Cannot specify -all and individual columns at the same time");
488 return;
489 } else {
490 heapop.set_columns(NULL);
491 }
492 } else {
493 if (_columns.has_value()) {
494 heapop.set_columns(_columns.value());
495 } else {
496 heapop.set_columns(DEFAULT_COLUMNS);
497 }
498 }
499 VMThread::execute(&heapop);
500 }
501
502 int ClassStatsDCmd::num_arguments() {
503 ResourceMark rm;
504 ClassStatsDCmd* dcmd = new ClassStatsDCmd(NULL, false);
505 if (dcmd != NULL) {
506 DCmdMark mark(dcmd);
507 return dcmd->_dcmdparser.num_arguments();
508 } else {
509 return 0;
510 }
511 }
512 #endif // INCLUDE_SERVICES
513
514 ThreadDumpDCmd::ThreadDumpDCmd(outputStream* output, bool heap) :
515 DCmdWithParser(output, heap),
516 _locks("-l", "print java.util.concurrent locks", "BOOLEAN", false, "false") {
517 _dcmdparser.add_dcmd_option(&_locks);
518 }
519
520 void ThreadDumpDCmd::execute(DCmdSource source, TRAPS) {
521 // thread stacks
522 VM_PrintThreads op1(output(), _locks.value());
523 VMThread::execute(&op1);
524
525 // JNI global handles
526 VM_PrintJNI op2(output());
527 VMThread::execute(&op2);
528
529 // Deadlock detection
530 VM_FindDeadlocks op3(output());
531 VMThread::execute(&op3);
532 }
533
534 int ThreadDumpDCmd::num_arguments() {
535 ResourceMark rm;
536 ThreadDumpDCmd* dcmd = new ThreadDumpDCmd(NULL, false);
537 if (dcmd != NULL) {
538 DCmdMark mark(dcmd);
539 return dcmd->_dcmdparser.num_arguments();
540 } else {
541 return 0;
542 }
543 }
544
545 // Enhanced JMX Agent support
546
547 JMXStartRemoteDCmd::JMXStartRemoteDCmd(outputStream *output, bool heap_allocated) :
548
549 DCmdWithParser(output, heap_allocated),
550
551 _config_file
552 ("config.file",
553 "set com.sun.management.config.file", "STRING", false),
554
555 _jmxremote_host
556 ("jmxremote.host",
557 "set com.sun.management.jmxremote.host", "STRING", false),
558
559 _jmxremote_port
560 ("jmxremote.port",
561 "set com.sun.management.jmxremote.port", "STRING", false),
562
563 _jmxremote_rmi_port
564 ("jmxremote.rmi.port",
565 "set com.sun.management.jmxremote.rmi.port", "STRING", false),
566
567 _jmxremote_ssl
568 ("jmxremote.ssl",
569 "set com.sun.management.jmxremote.ssl", "STRING", false),
570
571 _jmxremote_registry_ssl
572 ("jmxremote.registry.ssl",
573 "set com.sun.management.jmxremote.registry.ssl", "STRING", false),
574
575 _jmxremote_authenticate
576 ("jmxremote.authenticate",
577 "set com.sun.management.jmxremote.authenticate", "STRING", false),
578
579 _jmxremote_password_file
580 ("jmxremote.password.file",
581 "set com.sun.management.jmxremote.password.file", "STRING", false),
582
583 _jmxremote_access_file
584 ("jmxremote.access.file",
585 "set com.sun.management.jmxremote.access.file", "STRING", false),
586
587 _jmxremote_login_config
588 ("jmxremote.login.config",
589 "set com.sun.management.jmxremote.login.config", "STRING", false),
590
591 _jmxremote_ssl_enabled_cipher_suites
592 ("jmxremote.ssl.enabled.cipher.suites",
593 "set com.sun.management.jmxremote.ssl.enabled.cipher.suite", "STRING", false),
594
595 _jmxremote_ssl_enabled_protocols
596 ("jmxremote.ssl.enabled.protocols",
597 "set com.sun.management.jmxremote.ssl.enabled.protocols", "STRING", false),
598
599 _jmxremote_ssl_need_client_auth
600 ("jmxremote.ssl.need.client.auth",
601 "set com.sun.management.jmxremote.need.client.auth", "STRING", false),
602
603 _jmxremote_ssl_config_file
604 ("jmxremote.ssl.config.file",
605 "set com.sun.management.jmxremote.ssl_config_file", "STRING", false),
606
607 // JDP Protocol support
608 _jmxremote_autodiscovery
609 ("jmxremote.autodiscovery",
610 "set com.sun.management.jmxremote.autodiscovery", "STRING", false),
611
612 _jdp_port
613 ("jdp.port",
614 "set com.sun.management.jdp.port", "INT", false),
615
616 _jdp_address
617 ("jdp.address",
618 "set com.sun.management.jdp.address", "STRING", false),
619
620 _jdp_source_addr
621 ("jdp.source_addr",
622 "set com.sun.management.jdp.source_addr", "STRING", false),
623
624 _jdp_ttl
625 ("jdp.ttl",
626 "set com.sun.management.jdp.ttl", "INT", false),
627
628 _jdp_pause
629 ("jdp.pause",
630 "set com.sun.management.jdp.pause", "INT", false),
631
632 _jdp_name
633 ("jdp.name",
634 "set com.sun.management.jdp.name", "STRING", false)
635
636 {
637 _dcmdparser.add_dcmd_option(&_config_file);
638 _dcmdparser.add_dcmd_option(&_jmxremote_host);
639 _dcmdparser.add_dcmd_option(&_jmxremote_port);
640 _dcmdparser.add_dcmd_option(&_jmxremote_rmi_port);
641 _dcmdparser.add_dcmd_option(&_jmxremote_ssl);
642 _dcmdparser.add_dcmd_option(&_jmxremote_registry_ssl);
643 _dcmdparser.add_dcmd_option(&_jmxremote_authenticate);
644 _dcmdparser.add_dcmd_option(&_jmxremote_password_file);
645 _dcmdparser.add_dcmd_option(&_jmxremote_access_file);
646 _dcmdparser.add_dcmd_option(&_jmxremote_login_config);
647 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_cipher_suites);
648 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_protocols);
649 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_need_client_auth);
650 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_config_file);
651 _dcmdparser.add_dcmd_option(&_jmxremote_autodiscovery);
652 _dcmdparser.add_dcmd_option(&_jdp_port);
653 _dcmdparser.add_dcmd_option(&_jdp_address);
654 _dcmdparser.add_dcmd_option(&_jdp_source_addr);
655 _dcmdparser.add_dcmd_option(&_jdp_ttl);
656 _dcmdparser.add_dcmd_option(&_jdp_pause);
657 _dcmdparser.add_dcmd_option(&_jdp_name);
658 }
659
660
661 int JMXStartRemoteDCmd::num_arguments() {
662 ResourceMark rm;
663 JMXStartRemoteDCmd* dcmd = new JMXStartRemoteDCmd(NULL, false);
664 if (dcmd != NULL) {
665 DCmdMark mark(dcmd);
666 return dcmd->_dcmdparser.num_arguments();
667 } else {
668 return 0;
669 }
670 }
671
672
673 void JMXStartRemoteDCmd::execute(DCmdSource source, TRAPS) {
674 ResourceMark rm(THREAD);
675 HandleMark hm(THREAD);
676
677 // Load and initialize the sun.management.Agent class
678 // invoke startRemoteManagementAgent(string) method to start
679 // the remote management server.
680 // throw java.lang.NoSuchMethodError if the method doesn't exist
681
682 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
683 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK);
684 instanceKlassHandle ik (THREAD, k);
685
686 JavaValue result(T_VOID);
687
688 // Pass all command line arguments to java as key=value,...
689 // All checks are done on java side
690
691 int len = 0;
692 stringStream options;
693 char comma[2] = {0,0};
694
695 // Leave default values on Agent.class side and pass only
696 // agruments explicitly set by user. All arguments passed
697 // to jcmd override properties with the same name set by
698 // command line with -D or by managmenent.properties
699 // file.
700 #define PUT_OPTION(a) \
701 do { \
702 if ( (a).is_set() ){ \
703 if ( *((a).type()) == 'I' ) { \
704 options.print("%scom.sun.management.%s=" JLONG_FORMAT, comma, (a).name(), (jlong)((a).value())); \
705 } else { \
706 options.print("%scom.sun.management.%s=%s", comma, (a).name(), (char*)((a).value())); \
707 } \
708 comma[0] = ','; \
709 }\
710 } while(0);
711
712
713 PUT_OPTION(_config_file);
714 PUT_OPTION(_jmxremote_host);
715 PUT_OPTION(_jmxremote_port);
716 PUT_OPTION(_jmxremote_rmi_port);
717 PUT_OPTION(_jmxremote_ssl);
718 PUT_OPTION(_jmxremote_registry_ssl);
719 PUT_OPTION(_jmxremote_authenticate);
720 PUT_OPTION(_jmxremote_password_file);
721 PUT_OPTION(_jmxremote_access_file);
722 PUT_OPTION(_jmxremote_login_config);
723 PUT_OPTION(_jmxremote_ssl_enabled_cipher_suites);
724 PUT_OPTION(_jmxremote_ssl_enabled_protocols);
725 PUT_OPTION(_jmxremote_ssl_need_client_auth);
726 PUT_OPTION(_jmxremote_ssl_config_file);
727 PUT_OPTION(_jmxremote_autodiscovery);
728 PUT_OPTION(_jdp_port);
729 PUT_OPTION(_jdp_address);
730 PUT_OPTION(_jdp_source_addr);
731 PUT_OPTION(_jdp_ttl);
732 PUT_OPTION(_jdp_pause);
733 PUT_OPTION(_jdp_name);
734
735 #undef PUT_OPTION
736
737 Handle str = java_lang_String::create_from_str(options.as_string(), CHECK);
738 JavaCalls::call_static(&result, ik, vmSymbols::startRemoteAgent_name(), vmSymbols::string_void_signature(), str, CHECK);
739 }
740
741 JMXStartLocalDCmd::JMXStartLocalDCmd(outputStream *output, bool heap_allocated) :
742 DCmd(output, heap_allocated) {
743 // do nothing
744 }
745
746 void JMXStartLocalDCmd::execute(DCmdSource source, TRAPS) {
747 ResourceMark rm(THREAD);
748 HandleMark hm(THREAD);
749
750 // Load and initialize the sun.management.Agent class
751 // invoke startLocalManagementAgent(void) method to start
752 // the local management server
753 // throw java.lang.NoSuchMethodError if method doesn't exist
754
755 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
756 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK);
757 instanceKlassHandle ik (THREAD, k);
758
759 JavaValue result(T_VOID);
760 JavaCalls::call_static(&result, ik, vmSymbols::startLocalAgent_name(), vmSymbols::void_method_signature(), CHECK);
761 }
762
763 void JMXStopRemoteDCmd::execute(DCmdSource source, TRAPS) {
764 ResourceMark rm(THREAD);
765 HandleMark hm(THREAD);
766
767 // Load and initialize the sun.management.Agent class
768 // invoke stopRemoteManagementAgent method to stop the
769 // management server
770 // throw java.lang.NoSuchMethodError if method doesn't exist
771
772 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
773 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK);
774 instanceKlassHandle ik (THREAD, k);
775
776 JavaValue result(T_VOID);
777 JavaCalls::call_static(&result, ik, vmSymbols::stopRemoteAgent_name(), vmSymbols::void_method_signature(), CHECK);
778 }
779
780 JMXStatusDCmd::JMXStatusDCmd(outputStream *output, bool heap_allocated) :
781 DCmd(output, heap_allocated) {
782 // do nothing
783 }
784
785 void JMXStatusDCmd::execute(DCmdSource source, TRAPS) {
786 ResourceMark rm(THREAD);
787 HandleMark hm(THREAD);
788
789 // Load and initialize the sun.management.Agent class
790 // invoke getManagementAgentStatus() method to generate the status info
791 // throw java.lang.NoSuchMethodError if method doesn't exist
792
793 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
794 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK);
795 instanceKlassHandle ik (THREAD, k);
796
797 JavaValue result(T_OBJECT);
798 JavaCalls::call_static(&result, ik, vmSymbols::getAgentStatus_name(), vmSymbols::void_string_signature(), CHECK);
799
800 jvalue* jv = (jvalue*) result.get_value_addr();
801 oop str = (oop) jv->l;
802 if (str != NULL) {
803 char* out = java_lang_String::as_utf8_string(str);
804 if (out) {
805 output()->print_cr("%s", out);
806 return;
807 }
808 }
809 output()->print_cr("Error obtaining management agent status");
810 }
811
812 VMDynamicLibrariesDCmd::VMDynamicLibrariesDCmd(outputStream *output, bool heap_allocated) :
813 DCmd(output, heap_allocated) {
814 // do nothing
815 }
816
817 void VMDynamicLibrariesDCmd::execute(DCmdSource source, TRAPS) {
818 os::print_dll_info(output());
819 output()->cr();
820 }
821
822 void RotateGCLogDCmd::execute(DCmdSource source, TRAPS) {
823 if (UseGCLogFileRotation) {
824 VM_RotateGCLog rotateop(output());
825 VMThread::execute(&rotateop);
826 } else {
827 output()->print_cr("Target VM does not support GC log file rotation.");
828 }
829 }
830
831 void CompileQueueDCmd::execute(DCmdSource source, TRAPS) {
832 VM_PrintCompileQueue printCompileQueueOp(output());
833 VMThread::execute(&printCompileQueueOp);
834 }
835
836 void CodeListDCmd::execute(DCmdSource source, TRAPS) {
837 VM_PrintCodeList printCodeListOp(output());
838 VMThread::execute(&printCodeListOp);
839 }
840
841 void CodeCacheDCmd::execute(DCmdSource source, TRAPS) {
842 VM_PrintCodeCache printCodeCacheOp(output());
843 VMThread::execute(&printCodeCacheOp);
844 }
845
846 #if INCLUDE_SERVICES
847 ClassHierarchyDCmd::ClassHierarchyDCmd(outputStream* output, bool heap) :
848 DCmdWithParser(output, heap),
849 _print_interfaces("-i", "Inherited interfaces should be printed.", "BOOLEAN", false, "false"),
850 _print_subclasses("-s", "If a classname is specified, print its subclasses. "
851 "Otherwise only its superclasses are printed.", "BOOLEAN", false, "false"),
852 _classname("classname", "Name of class whose hierarchy should be printed. "
853 "If not specified, all class hierarchies are printed.",
854 "STRING", false) {
855 _dcmdparser.add_dcmd_option(&_print_interfaces);
856 _dcmdparser.add_dcmd_option(&_print_subclasses);
857 _dcmdparser.add_dcmd_argument(&_classname);
858 }
859
860 void ClassHierarchyDCmd::execute(DCmdSource source, TRAPS) {
861 VM_PrintClassHierarchy printClassHierarchyOp(output(), _print_interfaces.value(),
862 _print_subclasses.value(), _classname.value());
863 VMThread::execute(&printClassHierarchyOp);
864 }
865
866 int ClassHierarchyDCmd::num_arguments() {
867 ResourceMark rm;
868 ClassHierarchyDCmd* dcmd = new ClassHierarchyDCmd(NULL, false);
869 if (dcmd != NULL) {
870 DCmdMark mark(dcmd);
871 return dcmd->_dcmdparser.num_arguments();
872 } else {
873 return 0;
874 }
875 }
876
877 #endif
878
879 class VM_DumpTouchedMethods : public VM_Operation {
880 private:
881 outputStream* _out;
882 public:
883 VM_DumpTouchedMethods(outputStream* out) {
884 _out = out;
885 }
886
887 virtual VMOp_Type type() const { return VMOp_DumpTouchedMethods; }
888
889 virtual void doit() {
890 Method::print_touched_methods(_out);
891 }
892 };
893
894 TouchedMethodsDCmd::TouchedMethodsDCmd(outputStream* output, bool heap) :
895 DCmdWithParser(output, heap)
896 {}
897
898 void TouchedMethodsDCmd::execute(DCmdSource source, TRAPS) {
899 if (!UnlockDiagnosticVMOptions) {
900 output()->print_cr("VM.touched_methods command requires -XX:+UnlockDiagnosticVMOptions");
901 return;
902 }
903 VM_DumpTouchedMethods dumper(output());
904 VMThread::execute(&dumper);
905 }
906
907 int TouchedMethodsDCmd::num_arguments() {
908 return 0;
909 }