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 "compiler/compileBroker.hpp" 29 #include "compiler/directivesParser.hpp" 30 #include "gc/shared/vmGCOperations.hpp" 31 #include "oops/oop.inline.hpp" 32 #include "runtime/globals.hpp" 33 #include "runtime/javaCalls.hpp" 34 #include "runtime/os.hpp" 35 #include "services/diagnosticArgument.hpp" 36 #include "services/diagnosticCommand.hpp" 37 #include "services/diagnosticFramework.hpp" 38 #include "services/heapDumper.hpp" 39 #include "services/management.hpp" 40 #include "services/writeableFlags.hpp" 41 #include "utilities/macros.hpp" 42 #include "oops/objArrayOop.inline.hpp" 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<VMInfoDCmd>(full_export, true, false)); 60 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SystemGCDCmd>(full_export, true, false)); 61 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<RunFinalizationDCmd>(full_export, true, false)); 62 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapInfoDCmd>(full_export, true, false)); 63 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<FinalizerInfoDCmd>(full_export, true, false)); 64 #if INCLUDE_SERVICES // Heap dumping/inspection supported 65 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapDumpDCmd>(DCmd_Source_Internal | DCmd_Source_AttachAPI, true, false)); 66 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHistogramDCmd>(full_export, true, false)); 67 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassStatsDCmd>(full_export, true, false)); 68 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHierarchyDCmd>(full_export, true, false)); 69 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SymboltableDCmd>(full_export, true, false)); 70 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<StringtableDCmd>(full_export, true, false)); 71 #endif // INCLUDE_SERVICES 72 #if INCLUDE_JVMTI 73 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JVMTIDataDumpDCmd>(full_export, true, false)); 74 #endif // INCLUDE_JVMTI 75 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ThreadDumpDCmd>(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 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesPrintDCmd>(full_export, true, false)); 83 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesAddDCmd>(full_export, true, false)); 84 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesRemoveDCmd>(full_export, true, false)); 85 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesClearDCmd>(full_export, true, false)); 86 87 // Enhanced JMX Agent Support 88 // These commands won't be exported via the DiagnosticCommandMBean until an 89 // appropriate permission is created for them 90 uint32_t jmx_agent_export_flags = DCmd_Source_Internal | DCmd_Source_AttachAPI; 91 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartRemoteDCmd>(jmx_agent_export_flags, true,false)); 92 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartLocalDCmd>(jmx_agent_export_flags, true,false)); 93 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStopRemoteDCmd>(jmx_agent_export_flags, true,false)); 94 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStatusDCmd>(jmx_agent_export_flags, true,false)); 95 96 } 97 98 #ifndef HAVE_EXTRA_DCMD 99 void DCmdRegistrant::register_dcmds_ext(){ 100 // Do nothing here 101 } 102 #endif 103 104 105 HelpDCmd::HelpDCmd(outputStream* output, bool heap) : DCmdWithParser(output, heap), 106 _all("-all", "Show help for all commands", "BOOLEAN", false, "false"), 107 _cmd("command name", "The name of the command for which we want help", 108 "STRING", false) { 109 _dcmdparser.add_dcmd_option(&_all); 110 _dcmdparser.add_dcmd_argument(&_cmd); 111 }; 112 113 void HelpDCmd::execute(DCmdSource source, TRAPS) { 114 if (_all.value()) { 115 GrowableArray<const char*>* cmd_list = DCmdFactory::DCmd_list(source); 116 for (int i = 0; i < cmd_list->length(); i++) { 117 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i), 118 strlen(cmd_list->at(i))); 119 output()->print_cr("%s%s", factory->name(), 120 factory->is_enabled() ? "" : " [disabled]"); 121 output()->print_cr("\t%s", factory->description()); 122 output()->cr(); 123 factory = factory->next(); 124 } 125 } else if (_cmd.has_value()) { 126 DCmd* cmd = NULL; 127 DCmdFactory* factory = DCmdFactory::factory(source, _cmd.value(), 128 strlen(_cmd.value())); 129 if (factory != NULL) { 130 output()->print_cr("%s%s", factory->name(), 131 factory->is_enabled() ? "" : " [disabled]"); 132 output()->print_cr("%s", factory->description()); 133 output()->print_cr("\nImpact: %s", factory->impact()); 134 JavaPermission p = factory->permission(); 135 if(p._class != NULL) { 136 if(p._action != NULL) { 137 output()->print_cr("\nPermission: %s(%s, %s)", 138 p._class, p._name == NULL ? "null" : p._name, p._action); 139 } else { 140 output()->print_cr("\nPermission: %s(%s)", 141 p._class, p._name == NULL ? "null" : p._name); 142 } 143 } 144 output()->cr(); 145 cmd = factory->create_resource_instance(output()); 146 if (cmd != NULL) { 147 DCmdMark mark(cmd); 148 cmd->print_help(factory->name()); 149 } 150 } else { 151 output()->print_cr("Help unavailable : '%s' : No such command", _cmd.value()); 152 } 153 } else { 154 output()->print_cr("The following commands are available:"); 155 GrowableArray<const char *>* cmd_list = DCmdFactory::DCmd_list(source); 156 for (int i = 0; i < cmd_list->length(); i++) { 157 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i), 158 strlen(cmd_list->at(i))); 159 output()->print_cr("%s%s", factory->name(), 160 factory->is_enabled() ? "" : " [disabled]"); 161 factory = factory->_next; 162 } 163 output()->print_cr("\nFor more information about a specific command use 'help <command>'."); 164 } 165 } 166 167 int HelpDCmd::num_arguments() { 168 ResourceMark rm; 169 HelpDCmd* dcmd = new HelpDCmd(NULL, false); 170 if (dcmd != NULL) { 171 DCmdMark mark(dcmd); 172 return dcmd->_dcmdparser.num_arguments(); 173 } else { 174 return 0; 175 } 176 } 177 178 void VersionDCmd::execute(DCmdSource source, TRAPS) { 179 output()->print_cr("%s version %s", Abstract_VM_Version::vm_name(), 180 Abstract_VM_Version::vm_release()); 181 JDK_Version jdk_version = JDK_Version::current(); 182 if (jdk_version.patch_version() > 0) { 183 output()->print_cr("JDK %d.%d.%d.%d", jdk_version.major_version(), 184 jdk_version.minor_version(), jdk_version.security_version(), 185 jdk_version.patch_version()); 186 } else { 187 output()->print_cr("JDK %d.%d.%d", jdk_version.major_version(), 188 jdk_version.minor_version(), jdk_version.security_version()); 189 } 190 } 191 192 PrintVMFlagsDCmd::PrintVMFlagsDCmd(outputStream* output, bool heap) : 193 DCmdWithParser(output, heap), 194 _all("-all", "Print all flags supported by the VM", "BOOLEAN", false, "false") { 195 _dcmdparser.add_dcmd_option(&_all); 196 } 197 198 void PrintVMFlagsDCmd::execute(DCmdSource source, TRAPS) { 199 if (_all.value()) { 200 CommandLineFlags::printFlags(output(), true); 201 } else { 202 CommandLineFlags::printSetFlags(output()); 203 } 204 } 205 206 int PrintVMFlagsDCmd::num_arguments() { 207 ResourceMark rm; 208 PrintVMFlagsDCmd* dcmd = new PrintVMFlagsDCmd(NULL, false); 209 if (dcmd != NULL) { 210 DCmdMark mark(dcmd); 211 return dcmd->_dcmdparser.num_arguments(); 212 } else { 213 return 0; 214 } 215 } 216 217 SetVMFlagDCmd::SetVMFlagDCmd(outputStream* output, bool heap) : 218 DCmdWithParser(output, heap), 219 _flag("flag name", "The name of the flag we want to set", 220 "STRING", true), 221 _value("string value", "The value we want to set", "STRING", false) { 222 _dcmdparser.add_dcmd_argument(&_flag); 223 _dcmdparser.add_dcmd_argument(&_value); 224 } 225 226 void SetVMFlagDCmd::execute(DCmdSource source, TRAPS) { 227 const char* val = NULL; 228 if (_value.value() != NULL) { 229 val = _value.value(); 230 } 231 232 FormatBuffer<80> err_msg("%s", ""); 233 int ret = WriteableFlags::set_flag(_flag.value(), val, Flag::MANAGEMENT, err_msg); 234 235 if (ret != Flag::SUCCESS) { 236 output()->print_cr("%s", err_msg.buffer()); 237 } 238 } 239 240 int SetVMFlagDCmd::num_arguments() { 241 ResourceMark rm; 242 SetVMFlagDCmd* dcmd = new SetVMFlagDCmd(NULL, false); 243 if (dcmd != NULL) { 244 DCmdMark mark(dcmd); 245 return dcmd->_dcmdparser.num_arguments(); 246 } else { 247 return 0; 248 } 249 } 250 251 void JVMTIDataDumpDCmd::execute(DCmdSource source, TRAPS) { 252 if (JvmtiExport::should_post_data_dump()) { 253 JvmtiExport::post_data_dump(); 254 } 255 } 256 257 void PrintSystemPropertiesDCmd::execute(DCmdSource source, TRAPS) { 258 // load sun.misc.VMSupport 259 Symbol* klass = vmSymbols::sun_misc_VMSupport(); 260 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK); 261 instanceKlassHandle ik (THREAD, k); 262 if (ik->should_be_initialized()) { 263 ik->initialize(THREAD); 264 } 265 if (HAS_PENDING_EXCEPTION) { 266 java_lang_Throwable::print(PENDING_EXCEPTION, output()); 267 output()->cr(); 268 CLEAR_PENDING_EXCEPTION; 269 return; 270 } 271 272 // invoke the serializePropertiesToByteArray method 273 JavaValue result(T_OBJECT); 274 JavaCallArguments args; 275 276 Symbol* signature = vmSymbols::serializePropertiesToByteArray_signature(); 277 JavaCalls::call_static(&result, 278 ik, 279 vmSymbols::serializePropertiesToByteArray_name(), 280 signature, 281 &args, 282 THREAD); 283 if (HAS_PENDING_EXCEPTION) { 284 java_lang_Throwable::print(PENDING_EXCEPTION, output()); 285 output()->cr(); 286 CLEAR_PENDING_EXCEPTION; 287 return; 288 } 289 290 // The result should be a [B 291 oop res = (oop)result.get_jobject(); 292 assert(res->is_typeArray(), "just checking"); 293 assert(TypeArrayKlass::cast(res->klass())->element_type() == T_BYTE, "just checking"); 294 295 // copy the bytes to the output stream 296 typeArrayOop ba = typeArrayOop(res); 297 jbyte* addr = typeArrayOop(res)->byte_at_addr(0); 298 output()->print_raw((const char*)addr, ba->length()); 299 } 300 301 VMUptimeDCmd::VMUptimeDCmd(outputStream* output, bool heap) : 302 DCmdWithParser(output, heap), 303 _date("-date", "Add a prefix with current date", "BOOLEAN", false, "false") { 304 _dcmdparser.add_dcmd_option(&_date); 305 } 306 307 void VMUptimeDCmd::execute(DCmdSource source, TRAPS) { 308 if (_date.value()) { 309 output()->date_stamp(true, "", ": "); 310 } 311 output()->time_stamp().update_to(tty->time_stamp().ticks()); 312 output()->stamp(); 313 output()->print_cr(" s"); 314 } 315 316 int VMUptimeDCmd::num_arguments() { 317 ResourceMark rm; 318 VMUptimeDCmd* dcmd = new VMUptimeDCmd(NULL, false); 319 if (dcmd != NULL) { 320 DCmdMark mark(dcmd); 321 return dcmd->_dcmdparser.num_arguments(); 322 } else { 323 return 0; 324 } 325 } 326 327 void VMInfoDCmd::execute(DCmdSource source, TRAPS) { 328 VMError::print_vm_info(_output); 329 } 330 331 void SystemGCDCmd::execute(DCmdSource source, TRAPS) { 332 if (!DisableExplicitGC) { 333 Universe::heap()->collect(GCCause::_dcmd_gc_run); 334 } else { 335 output()->print_cr("Explicit GC is disabled, no GC has been performed."); 336 } 337 } 338 339 void RunFinalizationDCmd::execute(DCmdSource source, TRAPS) { 340 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_System(), 341 true, CHECK); 342 instanceKlassHandle klass(THREAD, k); 343 JavaValue result(T_VOID); 344 JavaCalls::call_static(&result, klass, 345 vmSymbols::run_finalization_name(), 346 vmSymbols::void_method_signature(), CHECK); 347 } 348 349 void HeapInfoDCmd::execute(DCmdSource source, TRAPS) { 350 Universe::heap()->print_on(output()); 351 } 352 353 void FinalizerInfoDCmd::execute(DCmdSource source, TRAPS) { 354 ResourceMark rm; 355 356 357 Klass* k = SystemDictionary::resolve_or_null( 358 vmSymbols::finalizer_histogram_klass(), THREAD); 359 assert(k != NULL, "FinalizerHistogram class is not accessible"); 360 361 instanceKlassHandle klass(THREAD, k); 362 JavaValue result(T_ARRAY); 363 364 // We are calling lang.ref.FinalizerHistogram.getFinalizerHistogram() method 365 // and expect it to return array of FinalizerHistogramEntry as Object[] 366 367 JavaCalls::call_static(&result, klass, 368 vmSymbols::get_finalizer_histogram_name(), 369 vmSymbols::void_finalizer_histogram_entry_array_signature(), CHECK); 370 371 objArrayOop result_oop = (objArrayOop) result.get_jobject(); 372 if (result_oop->length() == 0) { 373 output()->print_cr("No instances waiting for finalization found"); 374 return; 375 } 376 377 oop foop = result_oop->obj_at(0); 378 InstanceKlass* ik = InstanceKlass::cast(foop->klass()); 379 380 fieldDescriptor count_fd, name_fd; 381 382 Klass* count_res = ik->find_field( 383 vmSymbols::finalizer_histogram_entry_count_field(), vmSymbols::int_signature(), &count_fd); 384 385 Klass* name_res = ik->find_field( 386 vmSymbols::finalizer_histogram_entry_name_field(), vmSymbols::string_signature(), &name_fd); 387 388 assert(count_res != NULL && name_res != NULL, "Unexpected layout of FinalizerHistogramEntry"); 389 390 output()->print_cr("Unreachable instances waiting for finalization"); 391 output()->print_cr("#instances class name"); 392 output()->print_cr("-----------------------"); 393 394 for (int i = 0; i < result_oop->length(); ++i) { 395 oop element_oop = result_oop->obj_at(i); 396 oop str_oop = element_oop->obj_field(name_fd.offset()); 397 char *name = java_lang_String::as_utf8_string(str_oop); 398 int count = element_oop->int_field(count_fd.offset()); 399 output()->print_cr("%10d %s", count, name); 400 } 401 } 402 403 #if INCLUDE_SERVICES // Heap dumping/inspection supported 404 HeapDumpDCmd::HeapDumpDCmd(outputStream* output, bool heap) : 405 DCmdWithParser(output, heap), 406 _filename("filename","Name of the dump file", "STRING",true), 407 _all("-all", "Dump all objects, including unreachable objects", 408 "BOOLEAN", false, "false") { 409 _dcmdparser.add_dcmd_option(&_all); 410 _dcmdparser.add_dcmd_argument(&_filename); 411 } 412 413 void HeapDumpDCmd::execute(DCmdSource source, TRAPS) { 414 // Request a full GC before heap dump if _all is false 415 // This helps reduces the amount of unreachable objects in the dump 416 // and makes it easier to browse. 417 HeapDumper dumper(!_all.value() /* request GC if _all is false*/); 418 int res = dumper.dump(_filename.value()); 419 if (res == 0) { 420 output()->print_cr("Heap dump file created"); 421 } else { 422 // heap dump failed 423 ResourceMark rm; 424 char* error = dumper.error_as_C_string(); 425 if (error == NULL) { 426 output()->print_cr("Dump failed - reason unknown"); 427 } else { 428 output()->print_cr("%s", error); 429 } 430 } 431 } 432 433 int HeapDumpDCmd::num_arguments() { 434 ResourceMark rm; 435 HeapDumpDCmd* dcmd = new HeapDumpDCmd(NULL, false); 436 if (dcmd != NULL) { 437 DCmdMark mark(dcmd); 438 return dcmd->_dcmdparser.num_arguments(); 439 } else { 440 return 0; 441 } 442 } 443 444 ClassHistogramDCmd::ClassHistogramDCmd(outputStream* output, bool heap) : 445 DCmdWithParser(output, heap), 446 _all("-all", "Inspect all objects, including unreachable objects", 447 "BOOLEAN", false, "false") { 448 _dcmdparser.add_dcmd_option(&_all); 449 } 450 451 void ClassHistogramDCmd::execute(DCmdSource source, TRAPS) { 452 VM_GC_HeapInspection heapop(output(), 453 !_all.value() /* request full gc if false */); 454 VMThread::execute(&heapop); 455 } 456 457 int ClassHistogramDCmd::num_arguments() { 458 ResourceMark rm; 459 ClassHistogramDCmd* dcmd = new ClassHistogramDCmd(NULL, false); 460 if (dcmd != NULL) { 461 DCmdMark mark(dcmd); 462 return dcmd->_dcmdparser.num_arguments(); 463 } else { 464 return 0; 465 } 466 } 467 468 #define DEFAULT_COLUMNS "InstBytes,KlassBytes,CpAll,annotations,MethodCount,Bytecodes,MethodAll,ROAll,RWAll,Total" 469 ClassStatsDCmd::ClassStatsDCmd(outputStream* output, bool heap) : 470 DCmdWithParser(output, heap), 471 _csv("-csv", "Print in CSV (comma-separated values) format for spreadsheets", 472 "BOOLEAN", false, "false"), 473 _all("-all", "Show all columns", 474 "BOOLEAN", false, "false"), 475 _help("-help", "Show meaning of all the columns", 476 "BOOLEAN", false, "false"), 477 _columns("columns", "Comma-separated list of all the columns to show. " 478 "If not specified, the following columns are shown: " DEFAULT_COLUMNS, 479 "STRING", false) { 480 _dcmdparser.add_dcmd_option(&_all); 481 _dcmdparser.add_dcmd_option(&_csv); 482 _dcmdparser.add_dcmd_option(&_help); 483 _dcmdparser.add_dcmd_argument(&_columns); 484 } 485 486 void ClassStatsDCmd::execute(DCmdSource source, TRAPS) { 487 if (!UnlockDiagnosticVMOptions) { 488 output()->print_cr("GC.class_stats command requires -XX:+UnlockDiagnosticVMOptions"); 489 return; 490 } 491 492 VM_GC_HeapInspection heapop(output(), 493 true /* request_full_gc */); 494 heapop.set_csv_format(_csv.value()); 495 heapop.set_print_help(_help.value()); 496 heapop.set_print_class_stats(true); 497 if (_all.value()) { 498 if (_columns.has_value()) { 499 output()->print_cr("Cannot specify -all and individual columns at the same time"); 500 return; 501 } else { 502 heapop.set_columns(NULL); 503 } 504 } else { 505 if (_columns.has_value()) { 506 heapop.set_columns(_columns.value()); 507 } else { 508 heapop.set_columns(DEFAULT_COLUMNS); 509 } 510 } 511 VMThread::execute(&heapop); 512 } 513 514 int ClassStatsDCmd::num_arguments() { 515 ResourceMark rm; 516 ClassStatsDCmd* dcmd = new ClassStatsDCmd(NULL, false); 517 if (dcmd != NULL) { 518 DCmdMark mark(dcmd); 519 return dcmd->_dcmdparser.num_arguments(); 520 } else { 521 return 0; 522 } 523 } 524 #endif // INCLUDE_SERVICES 525 526 ThreadDumpDCmd::ThreadDumpDCmd(outputStream* output, bool heap) : 527 DCmdWithParser(output, heap), 528 _locks("-l", "print java.util.concurrent locks", "BOOLEAN", false, "false") { 529 _dcmdparser.add_dcmd_option(&_locks); 530 } 531 532 void ThreadDumpDCmd::execute(DCmdSource source, TRAPS) { 533 // thread stacks 534 VM_PrintThreads op1(output(), _locks.value()); 535 VMThread::execute(&op1); 536 537 // JNI global handles 538 VM_PrintJNI op2(output()); 539 VMThread::execute(&op2); 540 541 // Deadlock detection 542 VM_FindDeadlocks op3(output()); 543 VMThread::execute(&op3); 544 } 545 546 int ThreadDumpDCmd::num_arguments() { 547 ResourceMark rm; 548 ThreadDumpDCmd* dcmd = new ThreadDumpDCmd(NULL, false); 549 if (dcmd != NULL) { 550 DCmdMark mark(dcmd); 551 return dcmd->_dcmdparser.num_arguments(); 552 } else { 553 return 0; 554 } 555 } 556 557 // Enhanced JMX Agent support 558 559 JMXStartRemoteDCmd::JMXStartRemoteDCmd(outputStream *output, bool heap_allocated) : 560 561 DCmdWithParser(output, heap_allocated), 562 563 _config_file 564 ("config.file", 565 "set com.sun.management.config.file", "STRING", false), 566 567 _jmxremote_host 568 ("jmxremote.host", 569 "set com.sun.management.jmxremote.host", "STRING", false), 570 571 _jmxremote_port 572 ("jmxremote.port", 573 "set com.sun.management.jmxremote.port", "STRING", false), 574 575 _jmxremote_rmi_port 576 ("jmxremote.rmi.port", 577 "set com.sun.management.jmxremote.rmi.port", "STRING", false), 578 579 _jmxremote_ssl 580 ("jmxremote.ssl", 581 "set com.sun.management.jmxremote.ssl", "STRING", false), 582 583 _jmxremote_registry_ssl 584 ("jmxremote.registry.ssl", 585 "set com.sun.management.jmxremote.registry.ssl", "STRING", false), 586 587 _jmxremote_authenticate 588 ("jmxremote.authenticate", 589 "set com.sun.management.jmxremote.authenticate", "STRING", false), 590 591 _jmxremote_password_file 592 ("jmxremote.password.file", 593 "set com.sun.management.jmxremote.password.file", "STRING", false), 594 595 _jmxremote_access_file 596 ("jmxremote.access.file", 597 "set com.sun.management.jmxremote.access.file", "STRING", false), 598 599 _jmxremote_login_config 600 ("jmxremote.login.config", 601 "set com.sun.management.jmxremote.login.config", "STRING", false), 602 603 _jmxremote_ssl_enabled_cipher_suites 604 ("jmxremote.ssl.enabled.cipher.suites", 605 "set com.sun.management.jmxremote.ssl.enabled.cipher.suite", "STRING", false), 606 607 _jmxremote_ssl_enabled_protocols 608 ("jmxremote.ssl.enabled.protocols", 609 "set com.sun.management.jmxremote.ssl.enabled.protocols", "STRING", false), 610 611 _jmxremote_ssl_need_client_auth 612 ("jmxremote.ssl.need.client.auth", 613 "set com.sun.management.jmxremote.need.client.auth", "STRING", false), 614 615 _jmxremote_ssl_config_file 616 ("jmxremote.ssl.config.file", 617 "set com.sun.management.jmxremote.ssl_config_file", "STRING", false), 618 619 // JDP Protocol support 620 _jmxremote_autodiscovery 621 ("jmxremote.autodiscovery", 622 "set com.sun.management.jmxremote.autodiscovery", "STRING", false), 623 624 _jdp_port 625 ("jdp.port", 626 "set com.sun.management.jdp.port", "INT", false), 627 628 _jdp_address 629 ("jdp.address", 630 "set com.sun.management.jdp.address", "STRING", false), 631 632 _jdp_source_addr 633 ("jdp.source_addr", 634 "set com.sun.management.jdp.source_addr", "STRING", false), 635 636 _jdp_ttl 637 ("jdp.ttl", 638 "set com.sun.management.jdp.ttl", "INT", false), 639 640 _jdp_pause 641 ("jdp.pause", 642 "set com.sun.management.jdp.pause", "INT", false), 643 644 _jdp_name 645 ("jdp.name", 646 "set com.sun.management.jdp.name", "STRING", false) 647 648 { 649 _dcmdparser.add_dcmd_option(&_config_file); 650 _dcmdparser.add_dcmd_option(&_jmxremote_host); 651 _dcmdparser.add_dcmd_option(&_jmxremote_port); 652 _dcmdparser.add_dcmd_option(&_jmxremote_rmi_port); 653 _dcmdparser.add_dcmd_option(&_jmxremote_ssl); 654 _dcmdparser.add_dcmd_option(&_jmxremote_registry_ssl); 655 _dcmdparser.add_dcmd_option(&_jmxremote_authenticate); 656 _dcmdparser.add_dcmd_option(&_jmxremote_password_file); 657 _dcmdparser.add_dcmd_option(&_jmxremote_access_file); 658 _dcmdparser.add_dcmd_option(&_jmxremote_login_config); 659 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_cipher_suites); 660 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_protocols); 661 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_need_client_auth); 662 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_config_file); 663 _dcmdparser.add_dcmd_option(&_jmxremote_autodiscovery); 664 _dcmdparser.add_dcmd_option(&_jdp_port); 665 _dcmdparser.add_dcmd_option(&_jdp_address); 666 _dcmdparser.add_dcmd_option(&_jdp_source_addr); 667 _dcmdparser.add_dcmd_option(&_jdp_ttl); 668 _dcmdparser.add_dcmd_option(&_jdp_pause); 669 _dcmdparser.add_dcmd_option(&_jdp_name); 670 } 671 672 673 int JMXStartRemoteDCmd::num_arguments() { 674 ResourceMark rm; 675 JMXStartRemoteDCmd* dcmd = new JMXStartRemoteDCmd(NULL, false); 676 if (dcmd != NULL) { 677 DCmdMark mark(dcmd); 678 return dcmd->_dcmdparser.num_arguments(); 679 } else { 680 return 0; 681 } 682 } 683 684 685 void JMXStartRemoteDCmd::execute(DCmdSource source, TRAPS) { 686 ResourceMark rm(THREAD); 687 HandleMark hm(THREAD); 688 689 // Load and initialize the sun.management.Agent class 690 // invoke startRemoteManagementAgent(string) method to start 691 // the remote management server. 692 // throw java.lang.NoSuchMethodError if the method doesn't exist 693 694 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 695 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK); 696 instanceKlassHandle ik (THREAD, k); 697 698 JavaValue result(T_VOID); 699 700 // Pass all command line arguments to java as key=value,... 701 // All checks are done on java side 702 703 int len = 0; 704 stringStream options; 705 char comma[2] = {0,0}; 706 707 // Leave default values on Agent.class side and pass only 708 // agruments explicitly set by user. All arguments passed 709 // to jcmd override properties with the same name set by 710 // command line with -D or by managmenent.properties 711 // file. 712 #define PUT_OPTION(a) \ 713 do { \ 714 if ( (a).is_set() ){ \ 715 if ( *((a).type()) == 'I' ) { \ 716 options.print("%scom.sun.management.%s=" JLONG_FORMAT, comma, (a).name(), (jlong)((a).value())); \ 717 } else { \ 718 options.print("%scom.sun.management.%s=%s", comma, (a).name(), (char*)((a).value())); \ 719 } \ 720 comma[0] = ','; \ 721 }\ 722 } while(0); 723 724 725 PUT_OPTION(_config_file); 726 PUT_OPTION(_jmxremote_host); 727 PUT_OPTION(_jmxremote_port); 728 PUT_OPTION(_jmxremote_rmi_port); 729 PUT_OPTION(_jmxremote_ssl); 730 PUT_OPTION(_jmxremote_registry_ssl); 731 PUT_OPTION(_jmxremote_authenticate); 732 PUT_OPTION(_jmxremote_password_file); 733 PUT_OPTION(_jmxremote_access_file); 734 PUT_OPTION(_jmxremote_login_config); 735 PUT_OPTION(_jmxremote_ssl_enabled_cipher_suites); 736 PUT_OPTION(_jmxremote_ssl_enabled_protocols); 737 PUT_OPTION(_jmxremote_ssl_need_client_auth); 738 PUT_OPTION(_jmxremote_ssl_config_file); 739 PUT_OPTION(_jmxremote_autodiscovery); 740 PUT_OPTION(_jdp_port); 741 PUT_OPTION(_jdp_address); 742 PUT_OPTION(_jdp_source_addr); 743 PUT_OPTION(_jdp_ttl); 744 PUT_OPTION(_jdp_pause); 745 PUT_OPTION(_jdp_name); 746 747 #undef PUT_OPTION 748 749 Handle str = java_lang_String::create_from_str(options.as_string(), CHECK); 750 JavaCalls::call_static(&result, ik, vmSymbols::startRemoteAgent_name(), vmSymbols::string_void_signature(), str, CHECK); 751 } 752 753 JMXStartLocalDCmd::JMXStartLocalDCmd(outputStream *output, bool heap_allocated) : 754 DCmd(output, heap_allocated) { 755 // do nothing 756 } 757 758 void JMXStartLocalDCmd::execute(DCmdSource source, TRAPS) { 759 ResourceMark rm(THREAD); 760 HandleMark hm(THREAD); 761 762 // Load and initialize the sun.management.Agent class 763 // invoke startLocalManagementAgent(void) method to start 764 // the local management server 765 // throw java.lang.NoSuchMethodError if method doesn't exist 766 767 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 768 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK); 769 instanceKlassHandle ik (THREAD, k); 770 771 JavaValue result(T_VOID); 772 JavaCalls::call_static(&result, ik, vmSymbols::startLocalAgent_name(), vmSymbols::void_method_signature(), CHECK); 773 } 774 775 void JMXStopRemoteDCmd::execute(DCmdSource source, TRAPS) { 776 ResourceMark rm(THREAD); 777 HandleMark hm(THREAD); 778 779 // Load and initialize the sun.management.Agent class 780 // invoke stopRemoteManagementAgent method to stop the 781 // management server 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_VOID); 789 JavaCalls::call_static(&result, ik, vmSymbols::stopRemoteAgent_name(), vmSymbols::void_method_signature(), CHECK); 790 } 791 792 JMXStatusDCmd::JMXStatusDCmd(outputStream *output, bool heap_allocated) : 793 DCmd(output, heap_allocated) { 794 // do nothing 795 } 796 797 void JMXStatusDCmd::execute(DCmdSource source, TRAPS) { 798 ResourceMark rm(THREAD); 799 HandleMark hm(THREAD); 800 801 // Load and initialize the sun.management.Agent class 802 // invoke getManagementAgentStatus() method to generate the status info 803 // throw java.lang.NoSuchMethodError if method doesn't exist 804 805 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 806 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK); 807 instanceKlassHandle ik (THREAD, k); 808 809 JavaValue result(T_OBJECT); 810 JavaCalls::call_static(&result, ik, vmSymbols::getAgentStatus_name(), vmSymbols::void_string_signature(), CHECK); 811 812 jvalue* jv = (jvalue*) result.get_value_addr(); 813 oop str = (oop) jv->l; 814 if (str != NULL) { 815 char* out = java_lang_String::as_utf8_string(str); 816 if (out) { 817 output()->print_cr("%s", out); 818 return; 819 } 820 } 821 output()->print_cr("Error obtaining management agent status"); 822 } 823 824 VMDynamicLibrariesDCmd::VMDynamicLibrariesDCmd(outputStream *output, bool heap_allocated) : 825 DCmd(output, heap_allocated) { 826 // do nothing 827 } 828 829 void VMDynamicLibrariesDCmd::execute(DCmdSource source, TRAPS) { 830 os::print_dll_info(output()); 831 output()->cr(); 832 } 833 834 void CompileQueueDCmd::execute(DCmdSource source, TRAPS) { 835 VM_PrintCompileQueue printCompileQueueOp(output()); 836 VMThread::execute(&printCompileQueueOp); 837 } 838 839 void CodeListDCmd::execute(DCmdSource source, TRAPS) { 840 VM_PrintCodeList printCodeListOp(output()); 841 VMThread::execute(&printCodeListOp); 842 } 843 844 void CodeCacheDCmd::execute(DCmdSource source, TRAPS) { 845 VM_PrintCodeCache printCodeCacheOp(output()); 846 VMThread::execute(&printCodeCacheOp); 847 } 848 849 void CompilerDirectivesPrintDCmd::execute(DCmdSource source, TRAPS) { 850 DirectivesStack::print(output()); 851 } 852 853 CompilerDirectivesAddDCmd::CompilerDirectivesAddDCmd(outputStream* output, bool heap) : 854 DCmdWithParser(output, heap), 855 _filename("filename","Name of the directives file", "STRING",true) { 856 _dcmdparser.add_dcmd_argument(&_filename); 857 } 858 859 void CompilerDirectivesAddDCmd::execute(DCmdSource source, TRAPS) { 860 DirectivesParser::parse_from_file(_filename.value(), output()); 861 } 862 863 int CompilerDirectivesAddDCmd::num_arguments() { 864 ResourceMark rm; 865 CompilerDirectivesAddDCmd* dcmd = new CompilerDirectivesAddDCmd(NULL, false); 866 if (dcmd != NULL) { 867 DCmdMark mark(dcmd); 868 return dcmd->_dcmdparser.num_arguments(); 869 } else { 870 return 0; 871 } 872 } 873 874 void CompilerDirectivesRemoveDCmd::execute(DCmdSource source, TRAPS) { 875 DirectivesStack::pop(); 876 } 877 878 void CompilerDirectivesClearDCmd::execute(DCmdSource source, TRAPS) { 879 DirectivesStack::clear(); 880 } 881 #if INCLUDE_SERVICES 882 ClassHierarchyDCmd::ClassHierarchyDCmd(outputStream* output, bool heap) : 883 DCmdWithParser(output, heap), 884 _print_interfaces("-i", "Inherited interfaces should be printed.", "BOOLEAN", false, "false"), 885 _print_subclasses("-s", "If a classname is specified, print its subclasses. " 886 "Otherwise only its superclasses are printed.", "BOOLEAN", false, "false"), 887 _classname("classname", "Name of class whose hierarchy should be printed. " 888 "If not specified, all class hierarchies are printed.", 889 "STRING", false) { 890 _dcmdparser.add_dcmd_option(&_print_interfaces); 891 _dcmdparser.add_dcmd_option(&_print_subclasses); 892 _dcmdparser.add_dcmd_argument(&_classname); 893 } 894 895 void ClassHierarchyDCmd::execute(DCmdSource source, TRAPS) { 896 VM_PrintClassHierarchy printClassHierarchyOp(output(), _print_interfaces.value(), 897 _print_subclasses.value(), _classname.value()); 898 VMThread::execute(&printClassHierarchyOp); 899 } 900 901 int ClassHierarchyDCmd::num_arguments() { 902 ResourceMark rm; 903 ClassHierarchyDCmd* dcmd = new ClassHierarchyDCmd(NULL, false); 904 if (dcmd != NULL) { 905 DCmdMark mark(dcmd); 906 return dcmd->_dcmdparser.num_arguments(); 907 } else { 908 return 0; 909 } 910 } 911 912 #endif 913 914 class VM_DumpTouchedMethods : public VM_Operation { 915 private: 916 outputStream* _out; 917 public: 918 VM_DumpTouchedMethods(outputStream* out) { 919 _out = out; 920 } 921 922 virtual VMOp_Type type() const { return VMOp_DumpTouchedMethods; } 923 924 virtual void doit() { 925 Method::print_touched_methods(_out); 926 } 927 }; 928 929 TouchedMethodsDCmd::TouchedMethodsDCmd(outputStream* output, bool heap) : 930 DCmdWithParser(output, heap) 931 {} 932 933 void TouchedMethodsDCmd::execute(DCmdSource source, TRAPS) { 934 if (!UnlockDiagnosticVMOptions) { 935 output()->print_cr("VM.touched_methods command requires -XX:+UnlockDiagnosticVMOptions"); 936 return; 937 } 938 VM_DumpTouchedMethods dumper(output()); 939 VMThread::execute(&dumper); 940 } 941 942 int TouchedMethodsDCmd::num_arguments() { 943 return 0; 944 }