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