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 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC 45 46 void DCmdRegistrant::register_dcmds(){ 47 // Registration of the diagnostic commands 48 // First argument specifies which interfaces will export the command 49 // Second argument specifies if the command is enabled 50 // Third argument specifies if the command is hidden 51 uint32_t full_export = DCmd_Source_Internal | DCmd_Source_AttachAPI 52 | DCmd_Source_MBean; 53 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HelpDCmd>(full_export, true, false)); 54 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VersionDCmd>(full_export, true, false)); 55 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CommandLineDCmd>(full_export, true, false)); 56 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintSystemPropertiesDCmd>(full_export, true, false)); 57 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintVMFlagsDCmd>(full_export, true, false)); 58 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SetVMFlagDCmd>(full_export, true, false)); 59 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMDynamicLibrariesDCmd>(full_export, true, false)); 60 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMUptimeDCmd>(full_export, true, false)); 61 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SystemGCDCmd>(full_export, true, false)); 62 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<RunFinalizationDCmd>(full_export, true, false)); 63 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapInfoDCmd>(full_export, true, false)); 64 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<FinalizerInfoDCmd>(full_export, true, false)); 65 #if INCLUDE_SERVICES // Heap dumping/inspection supported 66 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapDumpDCmd>(DCmd_Source_Internal | DCmd_Source_AttachAPI, true, false)); 67 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHistogramDCmd>(full_export, true, false)); 68 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassStatsDCmd>(full_export, true, false)); 69 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHierarchyDCmd>(full_export, true, false)); 70 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SymboltableDCmd>(full_export, true, false)); 71 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<StringtableDCmd>(full_export, true, false)); 72 #endif // INCLUDE_SERVICES 73 #if INCLUDE_JVMTI 74 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JVMTIDataDumpDCmd>(full_export, true, false)); 75 #endif // INCLUDE_JVMTI 76 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ThreadDumpDCmd>(full_export, true, false)); 77 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<RotateGCLogDCmd>(full_export, true, false)); 78 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassLoaderStatsDCmd>(full_export, true, false)); 79 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompileQueueDCmd>(full_export, true, false)); 80 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeListDCmd>(full_export, true, false)); 81 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeCacheDCmd>(full_export, true, false)); 82 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<TouchedMethodsDCmd>(full_export, true, false)); 83 84 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesPrintDCmd>(full_export, true, false)); 85 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesAddDCmd>(full_export, true, false)); 86 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesRemoveDCmd>(full_export, true, false)); 87 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesClearDCmd>(full_export, true, false)); 88 89 // Enhanced JMX Agent Support 90 // These commands won't be exported via the DiagnosticCommandMBean until an 91 // appropriate permission is created for them 92 uint32_t jmx_agent_export_flags = DCmd_Source_Internal | DCmd_Source_AttachAPI; 93 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartRemoteDCmd>(jmx_agent_export_flags, true,false)); 94 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartLocalDCmd>(jmx_agent_export_flags, true,false)); 95 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStopRemoteDCmd>(jmx_agent_export_flags, true,false)); 96 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStatusDCmd>(jmx_agent_export_flags, true,false)); 97 98 } 99 100 #ifndef HAVE_EXTRA_DCMD 101 void DCmdRegistrant::register_dcmds_ext(){ 102 // Do nothing here 103 } 104 #endif 105 106 107 HelpDCmd::HelpDCmd(outputStream* output, bool heap) : DCmdWithParser(output, heap), 108 _all("-all", "Show help for all commands", "BOOLEAN", false, "false"), 109 _cmd("command name", "The name of the command for which we want help", 110 "STRING", false) { 111 _dcmdparser.add_dcmd_option(&_all); 112 _dcmdparser.add_dcmd_argument(&_cmd); 113 }; 114 115 void HelpDCmd::execute(DCmdSource source, TRAPS) { 116 if (_all.value()) { 117 GrowableArray<const char*>* cmd_list = DCmdFactory::DCmd_list(source); 118 for (int i = 0; i < cmd_list->length(); i++) { 119 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i), 120 strlen(cmd_list->at(i))); 121 output()->print_cr("%s%s", factory->name(), 122 factory->is_enabled() ? "" : " [disabled]"); 123 output()->print_cr("\t%s", factory->description()); 124 output()->cr(); 125 factory = factory->next(); 126 } 127 } else if (_cmd.has_value()) { 128 DCmd* cmd = NULL; 129 DCmdFactory* factory = DCmdFactory::factory(source, _cmd.value(), 130 strlen(_cmd.value())); 131 if (factory != NULL) { 132 output()->print_cr("%s%s", factory->name(), 133 factory->is_enabled() ? "" : " [disabled]"); 134 output()->print_cr("%s", factory->description()); 135 output()->print_cr("\nImpact: %s", factory->impact()); 136 JavaPermission p = factory->permission(); 137 if(p._class != NULL) { 138 if(p._action != NULL) { 139 output()->print_cr("\nPermission: %s(%s, %s)", 140 p._class, p._name == NULL ? "null" : p._name, p._action); 141 } else { 142 output()->print_cr("\nPermission: %s(%s)", 143 p._class, p._name == NULL ? "null" : p._name); 144 } 145 } 146 output()->cr(); 147 cmd = factory->create_resource_instance(output()); 148 if (cmd != NULL) { 149 DCmdMark mark(cmd); 150 cmd->print_help(factory->name()); 151 } 152 } else { 153 output()->print_cr("Help unavailable : '%s' : No such command", _cmd.value()); 154 } 155 } else { 156 output()->print_cr("The following commands are available:"); 157 GrowableArray<const char *>* cmd_list = DCmdFactory::DCmd_list(source); 158 for (int i = 0; i < cmd_list->length(); i++) { 159 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i), 160 strlen(cmd_list->at(i))); 161 output()->print_cr("%s%s", factory->name(), 162 factory->is_enabled() ? "" : " [disabled]"); 163 factory = factory->_next; 164 } 165 output()->print_cr("\nFor more information about a specific command use 'help <command>'."); 166 } 167 } 168 169 int HelpDCmd::num_arguments() { 170 ResourceMark rm; 171 HelpDCmd* dcmd = new HelpDCmd(NULL, false); 172 if (dcmd != NULL) { 173 DCmdMark mark(dcmd); 174 return dcmd->_dcmdparser.num_arguments(); 175 } else { 176 return 0; 177 } 178 } 179 180 void VersionDCmd::execute(DCmdSource source, TRAPS) { 181 output()->print_cr("%s version %s", Abstract_VM_Version::vm_name(), 182 Abstract_VM_Version::vm_release()); 183 JDK_Version jdk_version = JDK_Version::current(); 184 if (jdk_version.update_version() > 0) { 185 output()->print_cr("JDK %d.%d_%02d", jdk_version.major_version(), 186 jdk_version.minor_version(), jdk_version.update_version()); 187 } else { 188 output()->print_cr("JDK %d.%d", jdk_version.major_version(), 189 jdk_version.minor_version()); 190 } 191 } 192 193 PrintVMFlagsDCmd::PrintVMFlagsDCmd(outputStream* output, bool heap) : 194 DCmdWithParser(output, heap), 195 _all("-all", "Print all flags supported by the VM", "BOOLEAN", false, "false") { 196 _dcmdparser.add_dcmd_option(&_all); 197 } 198 199 void PrintVMFlagsDCmd::execute(DCmdSource source, TRAPS) { 200 if (_all.value()) { 201 CommandLineFlags::printFlags(output(), true); 202 } else { 203 CommandLineFlags::printSetFlags(output()); 204 } 205 } 206 207 int PrintVMFlagsDCmd::num_arguments() { 208 ResourceMark rm; 209 PrintVMFlagsDCmd* dcmd = new PrintVMFlagsDCmd(NULL, false); 210 if (dcmd != NULL) { 211 DCmdMark mark(dcmd); 212 return dcmd->_dcmdparser.num_arguments(); 213 } else { 214 return 0; 215 } 216 } 217 218 SetVMFlagDCmd::SetVMFlagDCmd(outputStream* output, bool heap) : 219 DCmdWithParser(output, heap), 220 _flag("flag name", "The name of the flag we want to set", 221 "STRING", true), 222 _value("string value", "The value we want to set", "STRING", false) { 223 _dcmdparser.add_dcmd_argument(&_flag); 224 _dcmdparser.add_dcmd_argument(&_value); 225 } 226 227 void SetVMFlagDCmd::execute(DCmdSource source, TRAPS) { 228 const char* val = NULL; 229 if (_value.value() != NULL) { 230 val = _value.value(); 231 } 232 233 FormatBuffer<80> err_msg("%s", ""); 234 int ret = WriteableFlags::set_flag(_flag.value(), val, Flag::MANAGEMENT, err_msg); 235 236 if (ret != Flag::SUCCESS) { 237 output()->print_cr("%s", err_msg.buffer()); 238 } 239 } 240 241 int SetVMFlagDCmd::num_arguments() { 242 ResourceMark rm; 243 SetVMFlagDCmd* dcmd = new SetVMFlagDCmd(NULL, false); 244 if (dcmd != NULL) { 245 DCmdMark mark(dcmd); 246 return dcmd->_dcmdparser.num_arguments(); 247 } else { 248 return 0; 249 } 250 } 251 252 void JVMTIDataDumpDCmd::execute(DCmdSource source, TRAPS) { 253 if (JvmtiExport::should_post_data_dump()) { 254 JvmtiExport::post_data_dump(); 255 } 256 } 257 258 void PrintSystemPropertiesDCmd::execute(DCmdSource source, TRAPS) { 259 // load sun.misc.VMSupport 260 Symbol* klass = vmSymbols::sun_misc_VMSupport(); 261 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK); 262 instanceKlassHandle ik (THREAD, k); 263 if (ik->should_be_initialized()) { 264 ik->initialize(THREAD); 265 } 266 if (HAS_PENDING_EXCEPTION) { 267 java_lang_Throwable::print(PENDING_EXCEPTION, output()); 268 output()->cr(); 269 CLEAR_PENDING_EXCEPTION; 270 return; 271 } 272 273 // invoke the serializePropertiesToByteArray method 274 JavaValue result(T_OBJECT); 275 JavaCallArguments args; 276 277 Symbol* signature = vmSymbols::serializePropertiesToByteArray_signature(); 278 JavaCalls::call_static(&result, 279 ik, 280 vmSymbols::serializePropertiesToByteArray_name(), 281 signature, 282 &args, 283 THREAD); 284 if (HAS_PENDING_EXCEPTION) { 285 java_lang_Throwable::print(PENDING_EXCEPTION, output()); 286 output()->cr(); 287 CLEAR_PENDING_EXCEPTION; 288 return; 289 } 290 291 // The result should be a [B 292 oop res = (oop)result.get_jobject(); 293 assert(res->is_typeArray(), "just checking"); 294 assert(TypeArrayKlass::cast(res->klass())->element_type() == T_BYTE, "just checking"); 295 296 // copy the bytes to the output stream 297 typeArrayOop ba = typeArrayOop(res); 298 jbyte* addr = typeArrayOop(res)->byte_at_addr(0); 299 output()->print_raw((const char*)addr, ba->length()); 300 } 301 302 VMUptimeDCmd::VMUptimeDCmd(outputStream* output, bool heap) : 303 DCmdWithParser(output, heap), 304 _date("-date", "Add a prefix with current date", "BOOLEAN", false, "false") { 305 _dcmdparser.add_dcmd_option(&_date); 306 } 307 308 void VMUptimeDCmd::execute(DCmdSource source, TRAPS) { 309 if (_date.value()) { 310 output()->date_stamp(true, "", ": "); 311 } 312 output()->time_stamp().update_to(tty->time_stamp().ticks()); 313 output()->stamp(); 314 output()->print_cr(" s"); 315 } 316 317 int VMUptimeDCmd::num_arguments() { 318 ResourceMark rm; 319 VMUptimeDCmd* dcmd = new VMUptimeDCmd(NULL, false); 320 if (dcmd != NULL) { 321 DCmdMark mark(dcmd); 322 return dcmd->_dcmdparser.num_arguments(); 323 } else { 324 return 0; 325 } 326 } 327 328 void SystemGCDCmd::execute(DCmdSource source, TRAPS) { 329 if (!DisableExplicitGC) { 330 Universe::heap()->collect(GCCause::_dcmd_gc_run); 331 } else { 332 output()->print_cr("Explicit GC is disabled, no GC has been performed."); 333 } 334 } 335 336 void RunFinalizationDCmd::execute(DCmdSource source, TRAPS) { 337 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_System(), 338 true, CHECK); 339 instanceKlassHandle klass(THREAD, k); 340 JavaValue result(T_VOID); 341 JavaCalls::call_static(&result, klass, 342 vmSymbols::run_finalization_name(), 343 vmSymbols::void_method_signature(), CHECK); 344 } 345 346 void HeapInfoDCmd::execute(DCmdSource source, TRAPS) { 347 Universe::heap()->print_on(output()); 348 } 349 350 void FinalizerInfoDCmd::execute(DCmdSource source, TRAPS) { 351 ResourceMark rm; 352 353 354 Klass* k = SystemDictionary::resolve_or_null( 355 vmSymbols::finalizer_histogram_klass(), THREAD); 356 assert(k != NULL, "FinalizerHistogram class is not accessible"); 357 358 instanceKlassHandle klass(THREAD, k); 359 JavaValue result(T_ARRAY); 360 361 // We are calling lang.ref.FinalizerHistogram.getFinalizerHistogram() method 362 // and expect it to return array of FinalizerHistogramEntry as Object[] 363 364 JavaCalls::call_static(&result, klass, 365 vmSymbols::get_finalizer_histogram_name(), 366 vmSymbols::void_finalizer_histogram_entry_array_signature(), CHECK); 367 368 objArrayOop result_oop = (objArrayOop) result.get_jobject(); 369 if (result_oop->length() == 0) { 370 output()->print_cr("No instances waiting for finalization found"); 371 return; 372 } 373 374 oop foop = result_oop->obj_at(0); 375 InstanceKlass* ik = InstanceKlass::cast(foop->klass()); 376 377 fieldDescriptor count_fd, name_fd; 378 379 Klass* count_res = ik->find_field( 380 vmSymbols::finalizer_histogram_entry_count_field(), vmSymbols::int_signature(), &count_fd); 381 382 Klass* name_res = ik->find_field( 383 vmSymbols::finalizer_histogram_entry_name_field(), vmSymbols::string_signature(), &name_fd); 384 385 assert(count_res != NULL && name_res != NULL, "Unexpected layout of FinalizerHistogramEntry"); 386 387 output()->print_cr("Unreachable instances waiting for finalization"); 388 output()->print_cr("#instances class name"); 389 output()->print_cr("-----------------------"); 390 391 for (int i = 0; i < result_oop->length(); ++i) { 392 oop element_oop = result_oop->obj_at(i); 393 oop str_oop = element_oop->obj_field(name_fd.offset()); 394 char *name = java_lang_String::as_utf8_string(str_oop); 395 int count = element_oop->int_field(count_fd.offset()); 396 output()->print_cr("%10d %s", count, name); 397 } 398 } 399 400 #if INCLUDE_SERVICES // Heap dumping/inspection supported 401 HeapDumpDCmd::HeapDumpDCmd(outputStream* output, bool heap) : 402 DCmdWithParser(output, heap), 403 _filename("filename","Name of the dump file", "STRING",true), 404 _all("-all", "Dump all objects, including unreachable objects", 405 "BOOLEAN", false, "false") { 406 _dcmdparser.add_dcmd_option(&_all); 407 _dcmdparser.add_dcmd_argument(&_filename); 408 } 409 410 void HeapDumpDCmd::execute(DCmdSource source, TRAPS) { 411 // Request a full GC before heap dump if _all is false 412 // This helps reduces the amount of unreachable objects in the dump 413 // and makes it easier to browse. 414 HeapDumper dumper(!_all.value() /* request GC if _all is false*/); 415 int res = dumper.dump(_filename.value()); 416 if (res == 0) { 417 output()->print_cr("Heap dump file created"); 418 } else { 419 // heap dump failed 420 ResourceMark rm; 421 char* error = dumper.error_as_C_string(); 422 if (error == NULL) { 423 output()->print_cr("Dump failed - reason unknown"); 424 } else { 425 output()->print_cr("%s", error); 426 } 427 } 428 } 429 430 int HeapDumpDCmd::num_arguments() { 431 ResourceMark rm; 432 HeapDumpDCmd* dcmd = new HeapDumpDCmd(NULL, false); 433 if (dcmd != NULL) { 434 DCmdMark mark(dcmd); 435 return dcmd->_dcmdparser.num_arguments(); 436 } else { 437 return 0; 438 } 439 } 440 441 ClassHistogramDCmd::ClassHistogramDCmd(outputStream* output, bool heap) : 442 DCmdWithParser(output, heap), 443 _all("-all", "Inspect all objects, including unreachable objects", 444 "BOOLEAN", false, "false") { 445 _dcmdparser.add_dcmd_option(&_all); 446 } 447 448 void ClassHistogramDCmd::execute(DCmdSource source, TRAPS) { 449 VM_GC_HeapInspection heapop(output(), 450 !_all.value() /* request full gc if false */); 451 VMThread::execute(&heapop); 452 } 453 454 int ClassHistogramDCmd::num_arguments() { 455 ResourceMark rm; 456 ClassHistogramDCmd* dcmd = new ClassHistogramDCmd(NULL, false); 457 if (dcmd != NULL) { 458 DCmdMark mark(dcmd); 459 return dcmd->_dcmdparser.num_arguments(); 460 } else { 461 return 0; 462 } 463 } 464 465 #define DEFAULT_COLUMNS "InstBytes,KlassBytes,CpAll,annotations,MethodCount,Bytecodes,MethodAll,ROAll,RWAll,Total" 466 ClassStatsDCmd::ClassStatsDCmd(outputStream* output, bool heap) : 467 DCmdWithParser(output, heap), 468 _csv("-csv", "Print in CSV (comma-separated values) format for spreadsheets", 469 "BOOLEAN", false, "false"), 470 _all("-all", "Show all columns", 471 "BOOLEAN", false, "false"), 472 _help("-help", "Show meaning of all the columns", 473 "BOOLEAN", false, "false"), 474 _columns("columns", "Comma-separated list of all the columns to show. " 475 "If not specified, the following columns are shown: " DEFAULT_COLUMNS, 476 "STRING", false) { 477 _dcmdparser.add_dcmd_option(&_all); 478 _dcmdparser.add_dcmd_option(&_csv); 479 _dcmdparser.add_dcmd_option(&_help); 480 _dcmdparser.add_dcmd_argument(&_columns); 481 } 482 483 void ClassStatsDCmd::execute(DCmdSource source, TRAPS) { 484 if (!UnlockDiagnosticVMOptions) { 485 output()->print_cr("GC.class_stats command requires -XX:+UnlockDiagnosticVMOptions"); 486 return; 487 } 488 489 VM_GC_HeapInspection heapop(output(), 490 true /* request_full_gc */); 491 heapop.set_csv_format(_csv.value()); 492 heapop.set_print_help(_help.value()); 493 heapop.set_print_class_stats(true); 494 if (_all.value()) { 495 if (_columns.has_value()) { 496 output()->print_cr("Cannot specify -all and individual columns at the same time"); 497 return; 498 } else { 499 heapop.set_columns(NULL); 500 } 501 } else { 502 if (_columns.has_value()) { 503 heapop.set_columns(_columns.value()); 504 } else { 505 heapop.set_columns(DEFAULT_COLUMNS); 506 } 507 } 508 VMThread::execute(&heapop); 509 } 510 511 int ClassStatsDCmd::num_arguments() { 512 ResourceMark rm; 513 ClassStatsDCmd* dcmd = new ClassStatsDCmd(NULL, false); 514 if (dcmd != NULL) { 515 DCmdMark mark(dcmd); 516 return dcmd->_dcmdparser.num_arguments(); 517 } else { 518 return 0; 519 } 520 } 521 #endif // INCLUDE_SERVICES 522 523 ThreadDumpDCmd::ThreadDumpDCmd(outputStream* output, bool heap) : 524 DCmdWithParser(output, heap), 525 _locks("-l", "print java.util.concurrent locks", "BOOLEAN", false, "false") { 526 _dcmdparser.add_dcmd_option(&_locks); 527 } 528 529 void ThreadDumpDCmd::execute(DCmdSource source, TRAPS) { 530 // thread stacks 531 VM_PrintThreads op1(output(), _locks.value()); 532 VMThread::execute(&op1); 533 534 // JNI global handles 535 VM_PrintJNI op2(output()); 536 VMThread::execute(&op2); 537 538 // Deadlock detection 539 VM_FindDeadlocks op3(output()); 540 VMThread::execute(&op3); 541 } 542 543 int ThreadDumpDCmd::num_arguments() { 544 ResourceMark rm; 545 ThreadDumpDCmd* dcmd = new ThreadDumpDCmd(NULL, false); 546 if (dcmd != NULL) { 547 DCmdMark mark(dcmd); 548 return dcmd->_dcmdparser.num_arguments(); 549 } else { 550 return 0; 551 } 552 } 553 554 // Enhanced JMX Agent support 555 556 JMXStartRemoteDCmd::JMXStartRemoteDCmd(outputStream *output, bool heap_allocated) : 557 558 DCmdWithParser(output, heap_allocated), 559 560 _config_file 561 ("config.file", 562 "set com.sun.management.config.file", "STRING", false), 563 564 _jmxremote_port 565 ("jmxremote.port", 566 "set com.sun.management.jmxremote.port", "STRING", false), 567 568 _jmxremote_rmi_port 569 ("jmxremote.rmi.port", 570 "set com.sun.management.jmxremote.rmi.port", "STRING", false), 571 572 _jmxremote_ssl 573 ("jmxremote.ssl", 574 "set com.sun.management.jmxremote.ssl", "STRING", false), 575 576 _jmxremote_registry_ssl 577 ("jmxremote.registry.ssl", 578 "set com.sun.management.jmxremote.registry.ssl", "STRING", false), 579 580 _jmxremote_authenticate 581 ("jmxremote.authenticate", 582 "set com.sun.management.jmxremote.authenticate", "STRING", false), 583 584 _jmxremote_password_file 585 ("jmxremote.password.file", 586 "set com.sun.management.jmxremote.password.file", "STRING", false), 587 588 _jmxremote_access_file 589 ("jmxremote.access.file", 590 "set com.sun.management.jmxremote.access.file", "STRING", false), 591 592 _jmxremote_login_config 593 ("jmxremote.login.config", 594 "set com.sun.management.jmxremote.login.config", "STRING", false), 595 596 _jmxremote_ssl_enabled_cipher_suites 597 ("jmxremote.ssl.enabled.cipher.suites", 598 "set com.sun.management.jmxremote.ssl.enabled.cipher.suite", "STRING", false), 599 600 _jmxremote_ssl_enabled_protocols 601 ("jmxremote.ssl.enabled.protocols", 602 "set com.sun.management.jmxremote.ssl.enabled.protocols", "STRING", false), 603 604 _jmxremote_ssl_need_client_auth 605 ("jmxremote.ssl.need.client.auth", 606 "set com.sun.management.jmxremote.need.client.auth", "STRING", false), 607 608 _jmxremote_ssl_config_file 609 ("jmxremote.ssl.config.file", 610 "set com.sun.management.jmxremote.ssl_config_file", "STRING", false), 611 612 // JDP Protocol support 613 _jmxremote_autodiscovery 614 ("jmxremote.autodiscovery", 615 "set com.sun.management.jmxremote.autodiscovery", "STRING", false), 616 617 _jdp_port 618 ("jdp.port", 619 "set com.sun.management.jdp.port", "INT", false), 620 621 _jdp_address 622 ("jdp.address", 623 "set com.sun.management.jdp.address", "STRING", false), 624 625 _jdp_source_addr 626 ("jdp.source_addr", 627 "set com.sun.management.jdp.source_addr", "STRING", false), 628 629 _jdp_ttl 630 ("jdp.ttl", 631 "set com.sun.management.jdp.ttl", "INT", false), 632 633 _jdp_pause 634 ("jdp.pause", 635 "set com.sun.management.jdp.pause", "INT", false), 636 637 _jdp_name 638 ("jdp.name", 639 "set com.sun.management.jdp.name", "STRING", false) 640 641 { 642 _dcmdparser.add_dcmd_option(&_config_file); 643 _dcmdparser.add_dcmd_option(&_jmxremote_port); 644 _dcmdparser.add_dcmd_option(&_jmxremote_rmi_port); 645 _dcmdparser.add_dcmd_option(&_jmxremote_ssl); 646 _dcmdparser.add_dcmd_option(&_jmxremote_registry_ssl); 647 _dcmdparser.add_dcmd_option(&_jmxremote_authenticate); 648 _dcmdparser.add_dcmd_option(&_jmxremote_password_file); 649 _dcmdparser.add_dcmd_option(&_jmxremote_access_file); 650 _dcmdparser.add_dcmd_option(&_jmxremote_login_config); 651 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_cipher_suites); 652 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_protocols); 653 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_need_client_auth); 654 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_config_file); 655 _dcmdparser.add_dcmd_option(&_jmxremote_autodiscovery); 656 _dcmdparser.add_dcmd_option(&_jdp_port); 657 _dcmdparser.add_dcmd_option(&_jdp_address); 658 _dcmdparser.add_dcmd_option(&_jdp_source_addr); 659 _dcmdparser.add_dcmd_option(&_jdp_ttl); 660 _dcmdparser.add_dcmd_option(&_jdp_pause); 661 _dcmdparser.add_dcmd_option(&_jdp_name); 662 } 663 664 665 int JMXStartRemoteDCmd::num_arguments() { 666 ResourceMark rm; 667 JMXStartRemoteDCmd* dcmd = new JMXStartRemoteDCmd(NULL, false); 668 if (dcmd != NULL) { 669 DCmdMark mark(dcmd); 670 return dcmd->_dcmdparser.num_arguments(); 671 } else { 672 return 0; 673 } 674 } 675 676 677 void JMXStartRemoteDCmd::execute(DCmdSource source, TRAPS) { 678 ResourceMark rm(THREAD); 679 HandleMark hm(THREAD); 680 681 // Load and initialize the sun.management.Agent class 682 // invoke startRemoteManagementAgent(string) method to start 683 // the remote management server. 684 // throw java.lang.NoSuchMethodError if the method doesn't exist 685 686 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 687 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK); 688 instanceKlassHandle ik (THREAD, k); 689 690 JavaValue result(T_VOID); 691 692 // Pass all command line arguments to java as key=value,... 693 // All checks are done on java side 694 695 int len = 0; 696 stringStream options; 697 char comma[2] = {0,0}; 698 699 // Leave default values on Agent.class side and pass only 700 // agruments explicitly set by user. All arguments passed 701 // to jcmd override properties with the same name set by 702 // command line with -D or by managmenent.properties 703 // file. 704 #define PUT_OPTION(a) \ 705 if ( (a).is_set() ){ \ 706 options.print(\ 707 ( *((a).type()) == 'I' ) ? "%scom.sun.management.%s=%d" : "%scom.sun.management.%s=%s",\ 708 comma, (a).name(), (a).value()); \ 709 comma[0] = ','; \ 710 } 711 712 PUT_OPTION(_config_file); 713 PUT_OPTION(_jmxremote_port); 714 PUT_OPTION(_jmxremote_rmi_port); 715 PUT_OPTION(_jmxremote_ssl); 716 PUT_OPTION(_jmxremote_registry_ssl); 717 PUT_OPTION(_jmxremote_authenticate); 718 PUT_OPTION(_jmxremote_password_file); 719 PUT_OPTION(_jmxremote_access_file); 720 PUT_OPTION(_jmxremote_login_config); 721 PUT_OPTION(_jmxremote_ssl_enabled_cipher_suites); 722 PUT_OPTION(_jmxremote_ssl_enabled_protocols); 723 PUT_OPTION(_jmxremote_ssl_need_client_auth); 724 PUT_OPTION(_jmxremote_ssl_config_file); 725 PUT_OPTION(_jmxremote_autodiscovery); 726 PUT_OPTION(_jdp_port); 727 PUT_OPTION(_jdp_address); 728 PUT_OPTION(_jdp_source_addr); 729 PUT_OPTION(_jdp_ttl); 730 PUT_OPTION(_jdp_pause); 731 PUT_OPTION(_jdp_name); 732 733 #undef PUT_OPTION 734 735 Handle str = java_lang_String::create_from_str(options.as_string(), CHECK); 736 JavaCalls::call_static(&result, ik, vmSymbols::startRemoteAgent_name(), vmSymbols::string_void_signature(), str, CHECK); 737 } 738 739 JMXStartLocalDCmd::JMXStartLocalDCmd(outputStream *output, bool heap_allocated) : 740 DCmd(output, heap_allocated) { 741 // do nothing 742 } 743 744 void JMXStartLocalDCmd::execute(DCmdSource source, TRAPS) { 745 ResourceMark rm(THREAD); 746 HandleMark hm(THREAD); 747 748 // Load and initialize the sun.management.Agent class 749 // invoke startLocalManagementAgent(void) method to start 750 // the local management server 751 // throw java.lang.NoSuchMethodError if method doesn't exist 752 753 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 754 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK); 755 instanceKlassHandle ik (THREAD, k); 756 757 JavaValue result(T_VOID); 758 JavaCalls::call_static(&result, ik, vmSymbols::startLocalAgent_name(), vmSymbols::void_method_signature(), CHECK); 759 } 760 761 void JMXStopRemoteDCmd::execute(DCmdSource source, TRAPS) { 762 ResourceMark rm(THREAD); 763 HandleMark hm(THREAD); 764 765 // Load and initialize the sun.management.Agent class 766 // invoke stopRemoteManagementAgent method to stop the 767 // management server 768 // throw java.lang.NoSuchMethodError if method doesn't exist 769 770 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 771 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK); 772 instanceKlassHandle ik (THREAD, k); 773 774 JavaValue result(T_VOID); 775 JavaCalls::call_static(&result, ik, vmSymbols::stopRemoteAgent_name(), vmSymbols::void_method_signature(), CHECK); 776 } 777 778 JMXStatusDCmd::JMXStatusDCmd(outputStream *output, bool heap_allocated) : 779 DCmd(output, heap_allocated) { 780 // do nothing 781 } 782 783 void JMXStatusDCmd::execute(DCmdSource source, TRAPS) { 784 ResourceMark rm(THREAD); 785 HandleMark hm(THREAD); 786 787 // Load and initialize the sun.management.Agent class 788 // invoke getManagementAgentStatus() method to generate the status info 789 // throw java.lang.NoSuchMethodError if method doesn't exist 790 791 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 792 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK); 793 instanceKlassHandle ik (THREAD, k); 794 795 JavaValue result(T_OBJECT); 796 JavaCalls::call_static(&result, ik, vmSymbols::getAgentStatus_name(), vmSymbols::void_string_signature(), CHECK); 797 798 jvalue* jv = (jvalue*) result.get_value_addr(); 799 oop str = (oop) jv->l; 800 if (str != NULL) { 801 char* out = java_lang_String::as_utf8_string(str); 802 if (out) { 803 output()->print_cr("%s", out); 804 return; 805 } 806 } 807 output()->print_cr("Error obtaining management agent status"); 808 } 809 810 VMDynamicLibrariesDCmd::VMDynamicLibrariesDCmd(outputStream *output, bool heap_allocated) : 811 DCmd(output, heap_allocated) { 812 // do nothing 813 } 814 815 void VMDynamicLibrariesDCmd::execute(DCmdSource source, TRAPS) { 816 os::print_dll_info(output()); 817 output()->cr(); 818 } 819 820 void RotateGCLogDCmd::execute(DCmdSource source, TRAPS) { 821 if (UseGCLogFileRotation) { 822 VM_RotateGCLog rotateop(output()); 823 VMThread::execute(&rotateop); 824 } else { 825 output()->print_cr("Target VM does not support GC log file rotation."); 826 } 827 } 828 829 void CompileQueueDCmd::execute(DCmdSource source, TRAPS) { 830 VM_PrintCompileQueue printCompileQueueOp(output()); 831 VMThread::execute(&printCompileQueueOp); 832 } 833 834 void CodeListDCmd::execute(DCmdSource source, TRAPS) { 835 VM_PrintCodeList printCodeListOp(output()); 836 VMThread::execute(&printCodeListOp); 837 } 838 839 void CodeCacheDCmd::execute(DCmdSource source, TRAPS) { 840 VM_PrintCodeCache printCodeCacheOp(output()); 841 VMThread::execute(&printCodeCacheOp); 842 } 843 844 void CompilerDirectivesPrintDCmd::execute(DCmdSource source, TRAPS) { 845 DirectivesStack::print(output()); 846 } 847 848 CompilerDirectivesAddDCmd::CompilerDirectivesAddDCmd(outputStream* output, bool heap) : 849 DCmdWithParser(output, heap), 850 _filename("filename","Name of the directives file", "STRING",true) { 851 _dcmdparser.add_dcmd_argument(&_filename); 852 } 853 854 void CompilerDirectivesAddDCmd::execute(DCmdSource source, TRAPS) { 855 if (!DirectivesParser::parse_from_file(_filename.value())) { 856 output()->print_cr("Could not load compiler directives file."); 857 } 858 } 859 860 int CompilerDirectivesAddDCmd::num_arguments() { 861 ResourceMark rm; 862 CompilerDirectivesAddDCmd* dcmd = new CompilerDirectivesAddDCmd(NULL, false); 863 if (dcmd != NULL) { 864 DCmdMark mark(dcmd); 865 return dcmd->_dcmdparser.num_arguments(); 866 } else { 867 return 0; 868 } 869 } 870 871 void CompilerDirectivesRemoveDCmd::execute(DCmdSource source, TRAPS) { 872 DirectivesStack::pop(); 873 } 874 875 void CompilerDirectivesClearDCmd::execute(DCmdSource source, TRAPS) { 876 DirectivesStack::clear(); 877 } 878 #if INCLUDE_SERVICES 879 ClassHierarchyDCmd::ClassHierarchyDCmd(outputStream* output, bool heap) : 880 DCmdWithParser(output, heap), 881 _print_interfaces("-i", "Inherited interfaces should be printed.", "BOOLEAN", false, "false"), 882 _print_subclasses("-s", "If a classname is specified, print its subclasses. " 883 "Otherwise only its superclasses are printed.", "BOOLEAN", false, "false"), 884 _classname("classname", "Name of class whose hierarchy should be printed. " 885 "If not specified, all class hierarchies are printed.", 886 "STRING", false) { 887 _dcmdparser.add_dcmd_option(&_print_interfaces); 888 _dcmdparser.add_dcmd_option(&_print_subclasses); 889 _dcmdparser.add_dcmd_argument(&_classname); 890 } 891 892 void ClassHierarchyDCmd::execute(DCmdSource source, TRAPS) { 893 VM_PrintClassHierarchy printClassHierarchyOp(output(), _print_interfaces.value(), 894 _print_subclasses.value(), _classname.value()); 895 VMThread::execute(&printClassHierarchyOp); 896 } 897 898 int ClassHierarchyDCmd::num_arguments() { 899 ResourceMark rm; 900 ClassHierarchyDCmd* dcmd = new ClassHierarchyDCmd(NULL, false); 901 if (dcmd != NULL) { 902 DCmdMark mark(dcmd); 903 return dcmd->_dcmdparser.num_arguments(); 904 } else { 905 return 0; 906 } 907 } 908 909 #endif 910 911 class VM_DumpTouchedMethods : public VM_Operation { 912 private: 913 outputStream* _out; 914 public: 915 VM_DumpTouchedMethods(outputStream* out) { 916 _out = out; 917 } 918 919 virtual VMOp_Type type() const { return VMOp_DumpTouchedMethods; } 920 921 virtual void doit() { 922 Method::print_touched_methods(_out); 923 } 924 }; 925 926 TouchedMethodsDCmd::TouchedMethodsDCmd(outputStream* output, bool heap) : 927 DCmdWithParser(output, heap) 928 {} 929 930 void TouchedMethodsDCmd::execute(DCmdSource source, TRAPS) { 931 if (!UnlockDiagnosticVMOptions) { 932 output()->print_cr("VM.touched_methods command requires -XX:+UnlockDiagnosticVMOptions"); 933 return; 934 } 935 VM_DumpTouchedMethods dumper(output()); 936 VMThread::execute(&dumper); 937 } 938 939 int TouchedMethodsDCmd::num_arguments() { 940 return 0; 941 }