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.update_version() > 0) { 183 output()->print_cr("JDK %d.%d_%02d", jdk_version.major_version(), 184 jdk_version.minor_version(), jdk_version.update_version()); 185 } else { 186 output()->print_cr("JDK %d.%d", jdk_version.major_version(), 187 jdk_version.minor_version()); 188 } 189 } 190 191 PrintVMFlagsDCmd::PrintVMFlagsDCmd(outputStream* output, bool heap) : 192 DCmdWithParser(output, heap), 193 _all("-all", "Print all flags supported by the VM", "BOOLEAN", false, "false") { 194 _dcmdparser.add_dcmd_option(&_all); 195 } 196 197 void PrintVMFlagsDCmd::execute(DCmdSource source, TRAPS) { 198 if (_all.value()) { 199 CommandLineFlags::printFlags(output(), true); 200 } else { 201 CommandLineFlags::printSetFlags(output()); 202 } 203 } 204 205 int PrintVMFlagsDCmd::num_arguments() { 206 ResourceMark rm; 207 PrintVMFlagsDCmd* dcmd = new PrintVMFlagsDCmd(NULL, false); 208 if (dcmd != NULL) { 209 DCmdMark mark(dcmd); 210 return dcmd->_dcmdparser.num_arguments(); 211 } else { 212 return 0; 213 } 214 } 215 216 SetVMFlagDCmd::SetVMFlagDCmd(outputStream* output, bool heap) : 217 DCmdWithParser(output, heap), 218 _flag("flag name", "The name of the flag we want to set", 219 "STRING", true), 220 _value("string value", "The value we want to set", "STRING", false) { 221 _dcmdparser.add_dcmd_argument(&_flag); 222 _dcmdparser.add_dcmd_argument(&_value); 223 } 224 225 void SetVMFlagDCmd::execute(DCmdSource source, TRAPS) { 226 const char* val = NULL; 227 if (_value.value() != NULL) { 228 val = _value.value(); 229 } 230 231 FormatBuffer<80> err_msg("%s", ""); 232 int ret = WriteableFlags::set_flag(_flag.value(), val, Flag::MANAGEMENT, err_msg); 233 234 if (ret != Flag::SUCCESS) { 235 output()->print_cr("%s", err_msg.buffer()); 236 } 237 } 238 239 int SetVMFlagDCmd::num_arguments() { 240 ResourceMark rm; 241 SetVMFlagDCmd* dcmd = new SetVMFlagDCmd(NULL, false); 242 if (dcmd != NULL) { 243 DCmdMark mark(dcmd); 244 return dcmd->_dcmdparser.num_arguments(); 245 } else { 246 return 0; 247 } 248 } 249 250 void JVMTIDataDumpDCmd::execute(DCmdSource source, TRAPS) { 251 if (JvmtiExport::should_post_data_dump()) { 252 JvmtiExport::post_data_dump(); 253 } 254 } 255 256 void PrintSystemPropertiesDCmd::execute(DCmdSource source, TRAPS) { 257 // load sun.misc.VMSupport 258 Symbol* klass = vmSymbols::sun_misc_VMSupport(); 259 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK); 260 instanceKlassHandle ik (THREAD, k); 261 if (ik->should_be_initialized()) { 262 ik->initialize(THREAD); 263 } 264 if (HAS_PENDING_EXCEPTION) { 265 java_lang_Throwable::print(PENDING_EXCEPTION, output()); 266 output()->cr(); 267 CLEAR_PENDING_EXCEPTION; 268 return; 269 } 270 271 // invoke the serializePropertiesToByteArray method 272 JavaValue result(T_OBJECT); 273 JavaCallArguments args; 274 275 Symbol* signature = vmSymbols::serializePropertiesToByteArray_signature(); 276 JavaCalls::call_static(&result, 277 ik, 278 vmSymbols::serializePropertiesToByteArray_name(), 279 signature, 280 &args, 281 THREAD); 282 if (HAS_PENDING_EXCEPTION) { 283 java_lang_Throwable::print(PENDING_EXCEPTION, output()); 284 output()->cr(); 285 CLEAR_PENDING_EXCEPTION; 286 return; 287 } 288 289 // The result should be a [B 290 oop res = (oop)result.get_jobject(); 291 assert(res->is_typeArray(), "just checking"); 292 assert(TypeArrayKlass::cast(res->klass())->element_type() == T_BYTE, "just checking"); 293 294 // copy the bytes to the output stream 295 typeArrayOop ba = typeArrayOop(res); 296 jbyte* addr = typeArrayOop(res)->byte_at_addr(0); 297 output()->print_raw((const char*)addr, ba->length()); 298 } 299 300 VMUptimeDCmd::VMUptimeDCmd(outputStream* output, bool heap) : 301 DCmdWithParser(output, heap), 302 _date("-date", "Add a prefix with current date", "BOOLEAN", false, "false") { 303 _dcmdparser.add_dcmd_option(&_date); 304 } 305 306 void VMUptimeDCmd::execute(DCmdSource source, TRAPS) { 307 if (_date.value()) { 308 output()->date_stamp(true, "", ": "); 309 } 310 output()->time_stamp().update_to(tty->time_stamp().ticks()); 311 output()->stamp(); 312 output()->print_cr(" s"); 313 } 314 315 int VMUptimeDCmd::num_arguments() { 316 ResourceMark rm; 317 VMUptimeDCmd* dcmd = new VMUptimeDCmd(NULL, false); 318 if (dcmd != NULL) { 319 DCmdMark mark(dcmd); 320 return dcmd->_dcmdparser.num_arguments(); 321 } else { 322 return 0; 323 } 324 } 325 326 void VMInfoDCmd::execute(DCmdSource source, TRAPS) { 327 VMError::print_vm_info(_output); 328 } 329 330 void SystemGCDCmd::execute(DCmdSource source, TRAPS) { 331 if (!DisableExplicitGC) { 332 Universe::heap()->collect(GCCause::_dcmd_gc_run); 333 } else { 334 output()->print_cr("Explicit GC is disabled, no GC has been performed."); 335 } 336 } 337 338 void RunFinalizationDCmd::execute(DCmdSource source, TRAPS) { 339 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_System(), 340 true, CHECK); 341 instanceKlassHandle klass(THREAD, k); 342 JavaValue result(T_VOID); 343 JavaCalls::call_static(&result, klass, 344 vmSymbols::run_finalization_name(), 345 vmSymbols::void_method_signature(), CHECK); 346 } 347 348 void HeapInfoDCmd::execute(DCmdSource source, TRAPS) { 349 Universe::heap()->print_on(output()); 350 } 351 352 void FinalizerInfoDCmd::execute(DCmdSource source, TRAPS) { 353 ResourceMark rm; 354 355 356 Klass* k = SystemDictionary::resolve_or_null( 357 vmSymbols::finalizer_histogram_klass(), THREAD); 358 assert(k != NULL, "FinalizerHistogram class is not accessible"); 359 360 instanceKlassHandle klass(THREAD, k); 361 JavaValue result(T_ARRAY); 362 363 // We are calling lang.ref.FinalizerHistogram.getFinalizerHistogram() method 364 // and expect it to return array of FinalizerHistogramEntry as Object[] 365 366 JavaCalls::call_static(&result, klass, 367 vmSymbols::get_finalizer_histogram_name(), 368 vmSymbols::void_finalizer_histogram_entry_array_signature(), CHECK); 369 370 objArrayOop result_oop = (objArrayOop) result.get_jobject(); 371 if (result_oop->length() == 0) { 372 output()->print_cr("No instances waiting for finalization found"); 373 return; 374 } 375 376 oop foop = result_oop->obj_at(0); 377 InstanceKlass* ik = InstanceKlass::cast(foop->klass()); 378 379 fieldDescriptor count_fd, name_fd; 380 381 Klass* count_res = ik->find_field( 382 vmSymbols::finalizer_histogram_entry_count_field(), vmSymbols::int_signature(), &count_fd); 383 384 Klass* name_res = ik->find_field( 385 vmSymbols::finalizer_histogram_entry_name_field(), vmSymbols::string_signature(), &name_fd); 386 387 assert(count_res != NULL && name_res != NULL, "Unexpected layout of FinalizerHistogramEntry"); 388 389 output()->print_cr("Unreachable instances waiting for finalization"); 390 output()->print_cr("#instances class name"); 391 output()->print_cr("-----------------------"); 392 393 for (int i = 0; i < result_oop->length(); ++i) { 394 oop element_oop = result_oop->obj_at(i); 395 oop str_oop = element_oop->obj_field(name_fd.offset()); 396 char *name = java_lang_String::as_utf8_string(str_oop); 397 int count = element_oop->int_field(count_fd.offset()); 398 output()->print_cr("%10d %s", count, name); 399 } 400 } 401 402 #if INCLUDE_SERVICES // Heap dumping/inspection supported 403 HeapDumpDCmd::HeapDumpDCmd(outputStream* output, bool heap) : 404 DCmdWithParser(output, heap), 405 _filename("filename","Name of the dump file", "STRING",true), 406 _all("-all", "Dump all objects, including unreachable objects", 407 "BOOLEAN", false, "false") { 408 _dcmdparser.add_dcmd_option(&_all); 409 _dcmdparser.add_dcmd_argument(&_filename); 410 } 411 412 void HeapDumpDCmd::execute(DCmdSource source, TRAPS) { 413 // Request a full GC before heap dump if _all is false 414 // This helps reduces the amount of unreachable objects in the dump 415 // and makes it easier to browse. 416 HeapDumper dumper(!_all.value() /* request GC if _all is false*/); 417 int res = dumper.dump(_filename.value()); 418 if (res == 0) { 419 output()->print_cr("Heap dump file created"); 420 } else { 421 // heap dump failed 422 ResourceMark rm; 423 char* error = dumper.error_as_C_string(); 424 if (error == NULL) { 425 output()->print_cr("Dump failed - reason unknown"); 426 } else { 427 output()->print_cr("%s", error); 428 } 429 } 430 } 431 432 int HeapDumpDCmd::num_arguments() { 433 ResourceMark rm; 434 HeapDumpDCmd* dcmd = new HeapDumpDCmd(NULL, false); 435 if (dcmd != NULL) { 436 DCmdMark mark(dcmd); 437 return dcmd->_dcmdparser.num_arguments(); 438 } else { 439 return 0; 440 } 441 } 442 443 ClassHistogramDCmd::ClassHistogramDCmd(outputStream* output, bool heap) : 444 DCmdWithParser(output, heap), 445 _all("-all", "Inspect all objects, including unreachable objects", 446 "BOOLEAN", false, "false") { 447 _dcmdparser.add_dcmd_option(&_all); 448 } 449 450 void ClassHistogramDCmd::execute(DCmdSource source, TRAPS) { 451 VM_GC_HeapInspection heapop(output(), 452 !_all.value() /* request full gc if false */); 453 VMThread::execute(&heapop); 454 } 455 456 int ClassHistogramDCmd::num_arguments() { 457 ResourceMark rm; 458 ClassHistogramDCmd* dcmd = new ClassHistogramDCmd(NULL, false); 459 if (dcmd != NULL) { 460 DCmdMark mark(dcmd); 461 return dcmd->_dcmdparser.num_arguments(); 462 } else { 463 return 0; 464 } 465 } 466 467 #define DEFAULT_COLUMNS "InstBytes,KlassBytes,CpAll,annotations,MethodCount,Bytecodes,MethodAll,ROAll,RWAll,Total" 468 ClassStatsDCmd::ClassStatsDCmd(outputStream* output, bool heap) : 469 DCmdWithParser(output, heap), 470 _csv("-csv", "Print in CSV (comma-separated values) format for spreadsheets", 471 "BOOLEAN", false, "false"), 472 _all("-all", "Show all columns", 473 "BOOLEAN", false, "false"), 474 _help("-help", "Show meaning of all the columns", 475 "BOOLEAN", false, "false"), 476 _columns("columns", "Comma-separated list of all the columns to show. " 477 "If not specified, the following columns are shown: " DEFAULT_COLUMNS, 478 "STRING", false) { 479 _dcmdparser.add_dcmd_option(&_all); 480 _dcmdparser.add_dcmd_option(&_csv); 481 _dcmdparser.add_dcmd_option(&_help); 482 _dcmdparser.add_dcmd_argument(&_columns); 483 } 484 485 void ClassStatsDCmd::execute(DCmdSource source, TRAPS) { 486 if (!UnlockDiagnosticVMOptions) { 487 output()->print_cr("GC.class_stats command requires -XX:+UnlockDiagnosticVMOptions"); 488 return; 489 } 490 491 VM_GC_HeapInspection heapop(output(), 492 true /* request_full_gc */); 493 heapop.set_csv_format(_csv.value()); 494 heapop.set_print_help(_help.value()); 495 heapop.set_print_class_stats(true); 496 if (_all.value()) { 497 if (_columns.has_value()) { 498 output()->print_cr("Cannot specify -all and individual columns at the same time"); 499 return; 500 } else { 501 heapop.set_columns(NULL); 502 } 503 } else { 504 if (_columns.has_value()) { 505 heapop.set_columns(_columns.value()); 506 } else { 507 heapop.set_columns(DEFAULT_COLUMNS); 508 } 509 } 510 VMThread::execute(&heapop); 511 } 512 513 int ClassStatsDCmd::num_arguments() { 514 ResourceMark rm; 515 ClassStatsDCmd* dcmd = new ClassStatsDCmd(NULL, false); 516 if (dcmd != NULL) { 517 DCmdMark mark(dcmd); 518 return dcmd->_dcmdparser.num_arguments(); 519 } else { 520 return 0; 521 } 522 } 523 #endif // INCLUDE_SERVICES 524 525 ThreadDumpDCmd::ThreadDumpDCmd(outputStream* output, bool heap) : 526 DCmdWithParser(output, heap), 527 _locks("-l", "print java.util.concurrent locks", "BOOLEAN", false, "false") { 528 _dcmdparser.add_dcmd_option(&_locks); 529 } 530 531 void ThreadDumpDCmd::execute(DCmdSource source, TRAPS) { 532 // thread stacks 533 VM_PrintThreads op1(output(), _locks.value()); 534 VMThread::execute(&op1); 535 536 // JNI global handles 537 VM_PrintJNI op2(output()); 538 VMThread::execute(&op2); 539 540 // Deadlock detection 541 VM_FindDeadlocks op3(output()); 542 VMThread::execute(&op3); 543 } 544 545 int ThreadDumpDCmd::num_arguments() { 546 ResourceMark rm; 547 ThreadDumpDCmd* dcmd = new ThreadDumpDCmd(NULL, false); 548 if (dcmd != NULL) { 549 DCmdMark mark(dcmd); 550 return dcmd->_dcmdparser.num_arguments(); 551 } else { 552 return 0; 553 } 554 } 555 556 // Enhanced JMX Agent support 557 558 JMXStartRemoteDCmd::JMXStartRemoteDCmd(outputStream *output, bool heap_allocated) : 559 560 DCmdWithParser(output, heap_allocated), 561 562 _config_file 563 ("config.file", 564 "set com.sun.management.config.file", "STRING", false), 565 566 _jmxremote_port 567 ("jmxremote.port", 568 "set com.sun.management.jmxremote.port", "STRING", false), 569 570 _jmxremote_rmi_port 571 ("jmxremote.rmi.port", 572 "set com.sun.management.jmxremote.rmi.port", "STRING", false), 573 574 _jmxremote_ssl 575 ("jmxremote.ssl", 576 "set com.sun.management.jmxremote.ssl", "STRING", false), 577 578 _jmxremote_registry_ssl 579 ("jmxremote.registry.ssl", 580 "set com.sun.management.jmxremote.registry.ssl", "STRING", false), 581 582 _jmxremote_authenticate 583 ("jmxremote.authenticate", 584 "set com.sun.management.jmxremote.authenticate", "STRING", false), 585 586 _jmxremote_password_file 587 ("jmxremote.password.file", 588 "set com.sun.management.jmxremote.password.file", "STRING", false), 589 590 _jmxremote_access_file 591 ("jmxremote.access.file", 592 "set com.sun.management.jmxremote.access.file", "STRING", false), 593 594 _jmxremote_login_config 595 ("jmxremote.login.config", 596 "set com.sun.management.jmxremote.login.config", "STRING", false), 597 598 _jmxremote_ssl_enabled_cipher_suites 599 ("jmxremote.ssl.enabled.cipher.suites", 600 "set com.sun.management.jmxremote.ssl.enabled.cipher.suite", "STRING", false), 601 602 _jmxremote_ssl_enabled_protocols 603 ("jmxremote.ssl.enabled.protocols", 604 "set com.sun.management.jmxremote.ssl.enabled.protocols", "STRING", false), 605 606 _jmxremote_ssl_need_client_auth 607 ("jmxremote.ssl.need.client.auth", 608 "set com.sun.management.jmxremote.need.client.auth", "STRING", false), 609 610 _jmxremote_ssl_config_file 611 ("jmxremote.ssl.config.file", 612 "set com.sun.management.jmxremote.ssl_config_file", "STRING", false), 613 614 // JDP Protocol support 615 _jmxremote_autodiscovery 616 ("jmxremote.autodiscovery", 617 "set com.sun.management.jmxremote.autodiscovery", "STRING", false), 618 619 _jdp_port 620 ("jdp.port", 621 "set com.sun.management.jdp.port", "INT", false), 622 623 _jdp_address 624 ("jdp.address", 625 "set com.sun.management.jdp.address", "STRING", false), 626 627 _jdp_source_addr 628 ("jdp.source_addr", 629 "set com.sun.management.jdp.source_addr", "STRING", false), 630 631 _jdp_ttl 632 ("jdp.ttl", 633 "set com.sun.management.jdp.ttl", "INT", false), 634 635 _jdp_pause 636 ("jdp.pause", 637 "set com.sun.management.jdp.pause", "INT", false), 638 639 _jdp_name 640 ("jdp.name", 641 "set com.sun.management.jdp.name", "STRING", false) 642 643 { 644 _dcmdparser.add_dcmd_option(&_config_file); 645 _dcmdparser.add_dcmd_option(&_jmxremote_port); 646 _dcmdparser.add_dcmd_option(&_jmxremote_rmi_port); 647 _dcmdparser.add_dcmd_option(&_jmxremote_ssl); 648 _dcmdparser.add_dcmd_option(&_jmxremote_registry_ssl); 649 _dcmdparser.add_dcmd_option(&_jmxremote_authenticate); 650 _dcmdparser.add_dcmd_option(&_jmxremote_password_file); 651 _dcmdparser.add_dcmd_option(&_jmxremote_access_file); 652 _dcmdparser.add_dcmd_option(&_jmxremote_login_config); 653 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_cipher_suites); 654 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_protocols); 655 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_need_client_auth); 656 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_config_file); 657 _dcmdparser.add_dcmd_option(&_jmxremote_autodiscovery); 658 _dcmdparser.add_dcmd_option(&_jdp_port); 659 _dcmdparser.add_dcmd_option(&_jdp_address); 660 _dcmdparser.add_dcmd_option(&_jdp_source_addr); 661 _dcmdparser.add_dcmd_option(&_jdp_ttl); 662 _dcmdparser.add_dcmd_option(&_jdp_pause); 663 _dcmdparser.add_dcmd_option(&_jdp_name); 664 } 665 666 667 int JMXStartRemoteDCmd::num_arguments() { 668 ResourceMark rm; 669 JMXStartRemoteDCmd* dcmd = new JMXStartRemoteDCmd(NULL, false); 670 if (dcmd != NULL) { 671 DCmdMark mark(dcmd); 672 return dcmd->_dcmdparser.num_arguments(); 673 } else { 674 return 0; 675 } 676 } 677 678 679 void JMXStartRemoteDCmd::execute(DCmdSource source, TRAPS) { 680 ResourceMark rm(THREAD); 681 HandleMark hm(THREAD); 682 683 // Load and initialize the sun.management.Agent class 684 // invoke startRemoteManagementAgent(string) method to start 685 // the remote management server. 686 // throw java.lang.NoSuchMethodError if the method doesn't exist 687 688 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 689 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK); 690 instanceKlassHandle ik (THREAD, k); 691 692 JavaValue result(T_VOID); 693 694 // Pass all command line arguments to java as key=value,... 695 // All checks are done on java side 696 697 int len = 0; 698 stringStream options; 699 char comma[2] = {0,0}; 700 701 // Leave default values on Agent.class side and pass only 702 // agruments explicitly set by user. All arguments passed 703 // to jcmd override properties with the same name set by 704 // command line with -D or by managmenent.properties 705 // file. 706 #define PUT_OPTION(a) \ 707 do { \ 708 if ( (a).is_set() ){ \ 709 if ( *((a).type()) == 'I' ) { \ 710 options.print("%scom.sun.management.%s=" JLONG_FORMAT, comma, (a).name(), (jlong)((a).value())); \ 711 } else { \ 712 options.print("%scom.sun.management.%s=%s", comma, (a).name(), (char*)((a).value())); \ 713 } \ 714 comma[0] = ','; \ 715 }\ 716 } while(0); 717 718 719 PUT_OPTION(_config_file); 720 PUT_OPTION(_jmxremote_port); 721 PUT_OPTION(_jmxremote_rmi_port); 722 PUT_OPTION(_jmxremote_ssl); 723 PUT_OPTION(_jmxremote_registry_ssl); 724 PUT_OPTION(_jmxremote_authenticate); 725 PUT_OPTION(_jmxremote_password_file); 726 PUT_OPTION(_jmxremote_access_file); 727 PUT_OPTION(_jmxremote_login_config); 728 PUT_OPTION(_jmxremote_ssl_enabled_cipher_suites); 729 PUT_OPTION(_jmxremote_ssl_enabled_protocols); 730 PUT_OPTION(_jmxremote_ssl_need_client_auth); 731 PUT_OPTION(_jmxremote_ssl_config_file); 732 PUT_OPTION(_jmxremote_autodiscovery); 733 PUT_OPTION(_jdp_port); 734 PUT_OPTION(_jdp_address); 735 PUT_OPTION(_jdp_source_addr); 736 PUT_OPTION(_jdp_ttl); 737 PUT_OPTION(_jdp_pause); 738 PUT_OPTION(_jdp_name); 739 740 #undef PUT_OPTION 741 742 Handle str = java_lang_String::create_from_str(options.as_string(), CHECK); 743 JavaCalls::call_static(&result, ik, vmSymbols::startRemoteAgent_name(), vmSymbols::string_void_signature(), str, CHECK); 744 } 745 746 JMXStartLocalDCmd::JMXStartLocalDCmd(outputStream *output, bool heap_allocated) : 747 DCmd(output, heap_allocated) { 748 // do nothing 749 } 750 751 void JMXStartLocalDCmd::execute(DCmdSource source, TRAPS) { 752 ResourceMark rm(THREAD); 753 HandleMark hm(THREAD); 754 755 // Load and initialize the sun.management.Agent class 756 // invoke startLocalManagementAgent(void) method to start 757 // the local management server 758 // throw java.lang.NoSuchMethodError if method doesn't exist 759 760 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 761 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK); 762 instanceKlassHandle ik (THREAD, k); 763 764 JavaValue result(T_VOID); 765 JavaCalls::call_static(&result, ik, vmSymbols::startLocalAgent_name(), vmSymbols::void_method_signature(), CHECK); 766 } 767 768 void JMXStopRemoteDCmd::execute(DCmdSource source, TRAPS) { 769 ResourceMark rm(THREAD); 770 HandleMark hm(THREAD); 771 772 // Load and initialize the sun.management.Agent class 773 // invoke stopRemoteManagementAgent method to stop the 774 // management server 775 // throw java.lang.NoSuchMethodError if method doesn't exist 776 777 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 778 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK); 779 instanceKlassHandle ik (THREAD, k); 780 781 JavaValue result(T_VOID); 782 JavaCalls::call_static(&result, ik, vmSymbols::stopRemoteAgent_name(), vmSymbols::void_method_signature(), CHECK); 783 } 784 785 JMXStatusDCmd::JMXStatusDCmd(outputStream *output, bool heap_allocated) : 786 DCmd(output, heap_allocated) { 787 // do nothing 788 } 789 790 void JMXStatusDCmd::execute(DCmdSource source, TRAPS) { 791 ResourceMark rm(THREAD); 792 HandleMark hm(THREAD); 793 794 // Load and initialize the sun.management.Agent class 795 // invoke getManagementAgentStatus() method to generate the status info 796 // throw java.lang.NoSuchMethodError if method doesn't exist 797 798 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 799 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK); 800 instanceKlassHandle ik (THREAD, k); 801 802 JavaValue result(T_OBJECT); 803 JavaCalls::call_static(&result, ik, vmSymbols::getAgentStatus_name(), vmSymbols::void_string_signature(), CHECK); 804 805 jvalue* jv = (jvalue*) result.get_value_addr(); 806 oop str = (oop) jv->l; 807 if (str != NULL) { 808 char* out = java_lang_String::as_utf8_string(str); 809 if (out) { 810 output()->print_cr("%s", out); 811 return; 812 } 813 } 814 output()->print_cr("Error obtaining management agent status"); 815 } 816 817 VMDynamicLibrariesDCmd::VMDynamicLibrariesDCmd(outputStream *output, bool heap_allocated) : 818 DCmd(output, heap_allocated) { 819 // do nothing 820 } 821 822 void VMDynamicLibrariesDCmd::execute(DCmdSource source, TRAPS) { 823 os::print_dll_info(output()); 824 output()->cr(); 825 } 826 827 void CompileQueueDCmd::execute(DCmdSource source, TRAPS) { 828 VM_PrintCompileQueue printCompileQueueOp(output()); 829 VMThread::execute(&printCompileQueueOp); 830 } 831 832 void CodeListDCmd::execute(DCmdSource source, TRAPS) { 833 VM_PrintCodeList printCodeListOp(output()); 834 VMThread::execute(&printCodeListOp); 835 } 836 837 void CodeCacheDCmd::execute(DCmdSource source, TRAPS) { 838 VM_PrintCodeCache printCodeCacheOp(output()); 839 VMThread::execute(&printCodeCacheOp); 840 } 841 842 void CompilerDirectivesPrintDCmd::execute(DCmdSource source, TRAPS) { 843 DirectivesStack::print(output()); 844 } 845 846 CompilerDirectivesAddDCmd::CompilerDirectivesAddDCmd(outputStream* output, bool heap) : 847 DCmdWithParser(output, heap), 848 _filename("filename","Name of the directives file", "STRING",true) { 849 _dcmdparser.add_dcmd_argument(&_filename); 850 } 851 852 void CompilerDirectivesAddDCmd::execute(DCmdSource source, TRAPS) { 853 DirectivesParser::parse_from_file(_filename.value(), output()); 854 } 855 856 int CompilerDirectivesAddDCmd::num_arguments() { 857 ResourceMark rm; 858 CompilerDirectivesAddDCmd* dcmd = new CompilerDirectivesAddDCmd(NULL, false); 859 if (dcmd != NULL) { 860 DCmdMark mark(dcmd); 861 return dcmd->_dcmdparser.num_arguments(); 862 } else { 863 return 0; 864 } 865 } 866 867 void CompilerDirectivesRemoveDCmd::execute(DCmdSource source, TRAPS) { 868 DirectivesStack::pop(); 869 } 870 871 void CompilerDirectivesClearDCmd::execute(DCmdSource source, TRAPS) { 872 DirectivesStack::clear(); 873 } 874 #if INCLUDE_SERVICES 875 ClassHierarchyDCmd::ClassHierarchyDCmd(outputStream* output, bool heap) : 876 DCmdWithParser(output, heap), 877 _print_interfaces("-i", "Inherited interfaces should be printed.", "BOOLEAN", false, "false"), 878 _print_subclasses("-s", "If a classname is specified, print its subclasses. " 879 "Otherwise only its superclasses are printed.", "BOOLEAN", false, "false"), 880 _classname("classname", "Name of class whose hierarchy should be printed. " 881 "If not specified, all class hierarchies are printed.", 882 "STRING", false) { 883 _dcmdparser.add_dcmd_option(&_print_interfaces); 884 _dcmdparser.add_dcmd_option(&_print_subclasses); 885 _dcmdparser.add_dcmd_argument(&_classname); 886 } 887 888 void ClassHierarchyDCmd::execute(DCmdSource source, TRAPS) { 889 VM_PrintClassHierarchy printClassHierarchyOp(output(), _print_interfaces.value(), 890 _print_subclasses.value(), _classname.value()); 891 VMThread::execute(&printClassHierarchyOp); 892 } 893 894 int ClassHierarchyDCmd::num_arguments() { 895 ResourceMark rm; 896 ClassHierarchyDCmd* dcmd = new ClassHierarchyDCmd(NULL, false); 897 if (dcmd != NULL) { 898 DCmdMark mark(dcmd); 899 return dcmd->_dcmdparser.num_arguments(); 900 } else { 901 return 0; 902 } 903 } 904 905 #endif 906 907 class VM_DumpTouchedMethods : public VM_Operation { 908 private: 909 outputStream* _out; 910 public: 911 VM_DumpTouchedMethods(outputStream* out) { 912 _out = out; 913 } 914 915 virtual VMOp_Type type() const { return VMOp_DumpTouchedMethods; } 916 917 virtual void doit() { 918 Method::print_touched_methods(_out); 919 } 920 }; 921 922 TouchedMethodsDCmd::TouchedMethodsDCmd(outputStream* output, bool heap) : 923 DCmdWithParser(output, heap) 924 {} 925 926 void TouchedMethodsDCmd::execute(DCmdSource source, TRAPS) { 927 if (!UnlockDiagnosticVMOptions) { 928 output()->print_cr("VM.touched_methods command requires -XX:+UnlockDiagnosticVMOptions"); 929 return; 930 } 931 VM_DumpTouchedMethods dumper(output()); 932 VMThread::execute(&dumper); 933 } 934 935 int TouchedMethodsDCmd::num_arguments() { 936 return 0; 937 }