1 /* 2 * Copyright (c) 2011, 2017, 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 "memory/resourceArea.hpp" 32 #include "oops/oop.inline.hpp" 33 #include "runtime/globals.hpp" 34 #include "runtime/javaCalls.hpp" 35 #include "runtime/os.hpp" 36 #include "services/diagnosticArgument.hpp" 37 #include "services/diagnosticCommand.hpp" 38 #include "services/diagnosticFramework.hpp" 39 #include "services/heapDumper.hpp" 40 #include "services/management.hpp" 41 #include "services/writeableFlags.hpp" 42 #include "utilities/macros.hpp" 43 #include "oops/objArrayOop.inline.hpp" 44 45 void DCmdRegistrant::register_dcmds(){ 46 // Registration of the diagnostic commands 47 // First argument specifies which interfaces will export the command 48 // Second argument specifies if the command is enabled 49 // Third argument specifies if the command is hidden 50 uint32_t full_export = DCmd_Source_Internal | DCmd_Source_AttachAPI 51 | DCmd_Source_MBean; 52 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HelpDCmd>(full_export, true, false)); 53 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VersionDCmd>(full_export, true, false)); 54 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CommandLineDCmd>(full_export, true, false)); 55 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintSystemPropertiesDCmd>(full_export, true, false)); 56 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintVMFlagsDCmd>(full_export, true, false)); 57 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SetVMFlagDCmd>(full_export, true, false)); 58 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMDynamicLibrariesDCmd>(full_export, true, false)); 59 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMUptimeDCmd>(full_export, true, false)); 60 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMInfoDCmd>(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 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 #if INCLUDE_JVMTI // Both JVMTI and SERVICES have to be enabled to have this dcmd 73 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JVMTIAgentLoadDCmd>(full_export, true, false)); 74 #endif // INCLUDE_JVMTI 75 #endif // INCLUDE_SERVICES 76 #if INCLUDE_JVMTI 77 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JVMTIDataDumpDCmd>(full_export, true, false)); 78 #endif // INCLUDE_JVMTI 79 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ThreadDumpDCmd>(full_export, true, false)); 80 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassLoaderStatsDCmd>(full_export, true, false)); 81 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompileQueueDCmd>(full_export, true, false)); 82 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeListDCmd>(full_export, true, false)); 83 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeCacheDCmd>(full_export, true, false)); 84 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<TouchedMethodsDCmd>(full_export, true, false)); 85 86 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesPrintDCmd>(full_export, true, false)); 87 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesAddDCmd>(full_export, true, false)); 88 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesRemoveDCmd>(full_export, true, false)); 89 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesClearDCmd>(full_export, true, false)); 90 91 // Enhanced JMX Agent Support 92 // These commands won't be exported via the DiagnosticCommandMBean until an 93 // appropriate permission is created for them 94 uint32_t jmx_agent_export_flags = DCmd_Source_Internal | DCmd_Source_AttachAPI; 95 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartRemoteDCmd>(jmx_agent_export_flags, true,false)); 96 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartLocalDCmd>(jmx_agent_export_flags, true,false)); 97 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStopRemoteDCmd>(jmx_agent_export_flags, true,false)); 98 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStatusDCmd>(jmx_agent_export_flags, true,false)); 99 100 } 101 102 #ifndef HAVE_EXTRA_DCMD 103 void DCmdRegistrant::register_dcmds_ext(){ 104 // Do nothing here 105 } 106 #endif 107 108 109 HelpDCmd::HelpDCmd(outputStream* output, bool heap) : DCmdWithParser(output, heap), 110 _all("-all", "Show help for all commands", "BOOLEAN", false, "false"), 111 _cmd("command name", "The name of the command for which we want help", 112 "STRING", false) { 113 _dcmdparser.add_dcmd_option(&_all); 114 _dcmdparser.add_dcmd_argument(&_cmd); 115 }; 116 117 void HelpDCmd::execute(DCmdSource source, TRAPS) { 118 if (_all.value()) { 119 GrowableArray<const char*>* cmd_list = DCmdFactory::DCmd_list(source); 120 for (int i = 0; i < cmd_list->length(); i++) { 121 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i), 122 strlen(cmd_list->at(i))); 123 output()->print_cr("%s%s", factory->name(), 124 factory->is_enabled() ? "" : " [disabled]"); 125 output()->print_cr("\t%s", factory->description()); 126 output()->cr(); 127 factory = factory->next(); 128 } 129 } else if (_cmd.has_value()) { 130 DCmd* cmd = NULL; 131 DCmdFactory* factory = DCmdFactory::factory(source, _cmd.value(), 132 strlen(_cmd.value())); 133 if (factory != NULL) { 134 output()->print_cr("%s%s", factory->name(), 135 factory->is_enabled() ? "" : " [disabled]"); 136 output()->print_cr("%s", factory->description()); 137 output()->print_cr("\nImpact: %s", factory->impact()); 138 JavaPermission p = factory->permission(); 139 if(p._class != NULL) { 140 if(p._action != NULL) { 141 output()->print_cr("\nPermission: %s(%s, %s)", 142 p._class, p._name == NULL ? "null" : p._name, p._action); 143 } else { 144 output()->print_cr("\nPermission: %s(%s)", 145 p._class, p._name == NULL ? "null" : p._name); 146 } 147 } 148 output()->cr(); 149 cmd = factory->create_resource_instance(output()); 150 if (cmd != NULL) { 151 DCmdMark mark(cmd); 152 cmd->print_help(factory->name()); 153 } 154 } else { 155 output()->print_cr("Help unavailable : '%s' : No such command", _cmd.value()); 156 } 157 } else { 158 output()->print_cr("The following commands are available:"); 159 GrowableArray<const char *>* cmd_list = DCmdFactory::DCmd_list(source); 160 for (int i = 0; i < cmd_list->length(); i++) { 161 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i), 162 strlen(cmd_list->at(i))); 163 output()->print_cr("%s%s", factory->name(), 164 factory->is_enabled() ? "" : " [disabled]"); 165 factory = factory->_next; 166 } 167 output()->print_cr("\nFor more information about a specific command use 'help <command>'."); 168 } 169 } 170 171 int HelpDCmd::num_arguments() { 172 ResourceMark rm; 173 HelpDCmd* dcmd = new HelpDCmd(NULL, false); 174 if (dcmd != NULL) { 175 DCmdMark mark(dcmd); 176 return dcmd->_dcmdparser.num_arguments(); 177 } else { 178 return 0; 179 } 180 } 181 182 void VersionDCmd::execute(DCmdSource source, TRAPS) { 183 output()->print_cr("%s version %s", Abstract_VM_Version::vm_name(), 184 Abstract_VM_Version::vm_release()); 185 JDK_Version jdk_version = JDK_Version::current(); 186 if (jdk_version.patch_version() > 0) { 187 output()->print_cr("JDK %d.%d.%d.%d", jdk_version.major_version(), 188 jdk_version.minor_version(), jdk_version.security_version(), 189 jdk_version.patch_version()); 190 } else { 191 output()->print_cr("JDK %d.%d.%d", jdk_version.major_version(), 192 jdk_version.minor_version(), jdk_version.security_version()); 193 } 194 } 195 196 PrintVMFlagsDCmd::PrintVMFlagsDCmd(outputStream* output, bool heap) : 197 DCmdWithParser(output, heap), 198 _all("-all", "Print all flags supported by the VM", "BOOLEAN", false, "false") { 199 _dcmdparser.add_dcmd_option(&_all); 200 } 201 202 void PrintVMFlagsDCmd::execute(DCmdSource source, TRAPS) { 203 if (_all.value()) { 204 CommandLineFlags::printFlags(output(), true); 205 } else { 206 CommandLineFlags::printSetFlags(output()); 207 } 208 } 209 210 int PrintVMFlagsDCmd::num_arguments() { 211 ResourceMark rm; 212 PrintVMFlagsDCmd* dcmd = new PrintVMFlagsDCmd(NULL, false); 213 if (dcmd != NULL) { 214 DCmdMark mark(dcmd); 215 return dcmd->_dcmdparser.num_arguments(); 216 } else { 217 return 0; 218 } 219 } 220 221 SetVMFlagDCmd::SetVMFlagDCmd(outputStream* output, bool heap) : 222 DCmdWithParser(output, heap), 223 _flag("flag name", "The name of the flag we want to set", 224 "STRING", true), 225 _value("string value", "The value we want to set", "STRING", false) { 226 _dcmdparser.add_dcmd_argument(&_flag); 227 _dcmdparser.add_dcmd_argument(&_value); 228 } 229 230 void SetVMFlagDCmd::execute(DCmdSource source, TRAPS) { 231 const char* val = NULL; 232 if (_value.value() != NULL) { 233 val = _value.value(); 234 } 235 236 FormatBuffer<80> err_msg("%s", ""); 237 int ret = WriteableFlags::set_flag(_flag.value(), val, Flag::MANAGEMENT, err_msg); 238 239 if (ret != Flag::SUCCESS) { 240 output()->print_cr("%s", err_msg.buffer()); 241 } 242 } 243 244 int SetVMFlagDCmd::num_arguments() { 245 ResourceMark rm; 246 SetVMFlagDCmd* dcmd = new SetVMFlagDCmd(NULL, false); 247 if (dcmd != NULL) { 248 DCmdMark mark(dcmd); 249 return dcmd->_dcmdparser.num_arguments(); 250 } else { 251 return 0; 252 } 253 } 254 255 void JVMTIDataDumpDCmd::execute(DCmdSource source, TRAPS) { 256 if (JvmtiExport::should_post_data_dump()) { 257 JvmtiExport::post_data_dump(); 258 } 259 } 260 261 #if INCLUDE_SERVICES 262 JVMTIAgentLoadDCmd::JVMTIAgentLoadDCmd(outputStream* output, bool heap) : 263 DCmdWithParser(output, heap), 264 _libpath("library path", "Absolute path of the JVMTI agent to load.", 265 "STRING", true), 266 _option("agent option", "Option string to pass the agent.", "STRING", false) { 267 _dcmdparser.add_dcmd_argument(&_libpath); 268 _dcmdparser.add_dcmd_argument(&_option); 269 } 270 271 void JVMTIAgentLoadDCmd::execute(DCmdSource source, TRAPS) { 272 273 if (_libpath.value() == NULL) { 274 output()->print_cr("JVMTI.agent_load dcmd needs library path."); 275 return; 276 } 277 278 char *suffix = strrchr(_libpath.value(), '.'); 279 bool is_java_agent = (suffix != NULL) && (strncmp(".jar", suffix, 4) == 0); 280 281 if (is_java_agent) { 282 if (_option.value() == NULL) { 283 JvmtiExport::load_agent_library("instrument", "false", 284 _libpath.value(), output()); 285 } else { 286 size_t opt_len = strlen(_libpath.value()) + strlen(_option.value()) + 2; 287 if (opt_len > 4096) { 288 output()->print_cr("JVMTI agent attach failed: Options is too long."); 289 return; 290 } 291 292 char *opt = (char *)os::malloc(opt_len, mtInternal); 293 if (opt == NULL) { 294 output()->print_cr("JVMTI agent attach failed: " 295 "Could not allocate " SIZE_FORMAT " bytes for argument.", 296 opt_len); 297 return; 298 } 299 300 jio_snprintf(opt, opt_len, "%s=%s", _libpath.value(), _option.value()); 301 JvmtiExport::load_agent_library("instrument", "false", opt, output()); 302 303 os::free(opt); 304 } 305 } else { 306 JvmtiExport::load_agent_library(_libpath.value(), "true", 307 _option.value(), output()); 308 } 309 } 310 311 int JVMTIAgentLoadDCmd::num_arguments() { 312 ResourceMark rm; 313 JVMTIAgentLoadDCmd* dcmd = new JVMTIAgentLoadDCmd(NULL, false); 314 if (dcmd != NULL) { 315 DCmdMark mark(dcmd); 316 return dcmd->_dcmdparser.num_arguments(); 317 } else { 318 return 0; 319 } 320 } 321 #endif // INCLUDE_SERVICES 322 323 void PrintSystemPropertiesDCmd::execute(DCmdSource source, TRAPS) { 324 // load VMSupport 325 Symbol* klass = vmSymbols::jdk_internal_vm_VMSupport(); 326 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK); 327 instanceKlassHandle ik (THREAD, k); 328 if (ik->should_be_initialized()) { 329 ik->initialize(THREAD); 330 } 331 if (HAS_PENDING_EXCEPTION) { 332 java_lang_Throwable::print(PENDING_EXCEPTION, output()); 333 output()->cr(); 334 CLEAR_PENDING_EXCEPTION; 335 return; 336 } 337 338 // invoke the serializePropertiesToByteArray method 339 JavaValue result(T_OBJECT); 340 JavaCallArguments args; 341 342 Symbol* signature = vmSymbols::serializePropertiesToByteArray_signature(); 343 JavaCalls::call_static(&result, 344 ik, 345 vmSymbols::serializePropertiesToByteArray_name(), 346 signature, 347 &args, 348 THREAD); 349 if (HAS_PENDING_EXCEPTION) { 350 java_lang_Throwable::print(PENDING_EXCEPTION, output()); 351 output()->cr(); 352 CLEAR_PENDING_EXCEPTION; 353 return; 354 } 355 356 // The result should be a [B 357 oop res = (oop)result.get_jobject(); 358 assert(res->is_typeArray(), "just checking"); 359 assert(TypeArrayKlass::cast(res->klass())->element_type() == T_BYTE, "just checking"); 360 361 // copy the bytes to the output stream 362 typeArrayOop ba = typeArrayOop(res); 363 jbyte* addr = typeArrayOop(res)->byte_at_addr(0); 364 output()->print_raw((const char*)addr, ba->length()); 365 } 366 367 VMUptimeDCmd::VMUptimeDCmd(outputStream* output, bool heap) : 368 DCmdWithParser(output, heap), 369 _date("-date", "Add a prefix with current date", "BOOLEAN", false, "false") { 370 _dcmdparser.add_dcmd_option(&_date); 371 } 372 373 void VMUptimeDCmd::execute(DCmdSource source, TRAPS) { 374 if (_date.value()) { 375 output()->date_stamp(true, "", ": "); 376 } 377 output()->time_stamp().update_to(tty->time_stamp().ticks()); 378 output()->stamp(); 379 output()->print_cr(" s"); 380 } 381 382 int VMUptimeDCmd::num_arguments() { 383 ResourceMark rm; 384 VMUptimeDCmd* dcmd = new VMUptimeDCmd(NULL, false); 385 if (dcmd != NULL) { 386 DCmdMark mark(dcmd); 387 return dcmd->_dcmdparser.num_arguments(); 388 } else { 389 return 0; 390 } 391 } 392 393 void VMInfoDCmd::execute(DCmdSource source, TRAPS) { 394 VMError::print_vm_info(_output); 395 } 396 397 void SystemGCDCmd::execute(DCmdSource source, TRAPS) { 398 if (!DisableExplicitGC) { 399 Universe::heap()->collect(GCCause::_dcmd_gc_run); 400 } else { 401 output()->print_cr("Explicit GC is disabled, no GC has been performed."); 402 } 403 } 404 405 void RunFinalizationDCmd::execute(DCmdSource source, TRAPS) { 406 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_System(), 407 true, CHECK); 408 instanceKlassHandle klass(THREAD, k); 409 JavaValue result(T_VOID); 410 JavaCalls::call_static(&result, klass, 411 vmSymbols::run_finalization_name(), 412 vmSymbols::void_method_signature(), CHECK); 413 } 414 415 void HeapInfoDCmd::execute(DCmdSource source, TRAPS) { 416 MutexLocker hl(Heap_lock); 417 Universe::heap()->print_on(output()); 418 } 419 420 void FinalizerInfoDCmd::execute(DCmdSource source, TRAPS) { 421 ResourceMark rm; 422 423 Klass* k = SystemDictionary::resolve_or_fail( 424 vmSymbols::finalizer_histogram_klass(), true, CHECK); 425 426 instanceKlassHandle klass(THREAD, k); 427 JavaValue result(T_ARRAY); 428 429 // We are calling lang.ref.FinalizerHistogram.getFinalizerHistogram() method 430 // and expect it to return array of FinalizerHistogramEntry as Object[] 431 432 JavaCalls::call_static(&result, klass, 433 vmSymbols::get_finalizer_histogram_name(), 434 vmSymbols::void_finalizer_histogram_entry_array_signature(), CHECK); 435 436 objArrayOop result_oop = (objArrayOop) result.get_jobject(); 437 if (result_oop->length() == 0) { 438 output()->print_cr("No instances waiting for finalization found"); 439 return; 440 } 441 442 oop foop = result_oop->obj_at(0); 443 InstanceKlass* ik = InstanceKlass::cast(foop->klass()); 444 445 fieldDescriptor count_fd, name_fd; 446 447 Klass* count_res = ik->find_field( 448 vmSymbols::finalizer_histogram_entry_count_field(), vmSymbols::int_signature(), &count_fd); 449 450 Klass* name_res = ik->find_field( 451 vmSymbols::finalizer_histogram_entry_name_field(), vmSymbols::string_signature(), &name_fd); 452 453 assert(count_res != NULL && name_res != NULL, "Unexpected layout of FinalizerHistogramEntry"); 454 455 output()->print_cr("Unreachable instances waiting for finalization"); 456 output()->print_cr("#instances class name"); 457 output()->print_cr("-----------------------"); 458 459 for (int i = 0; i < result_oop->length(); ++i) { 460 oop element_oop = result_oop->obj_at(i); 461 oop str_oop = element_oop->obj_field(name_fd.offset()); 462 char *name = java_lang_String::as_utf8_string(str_oop); 463 int count = element_oop->int_field(count_fd.offset()); 464 output()->print_cr("%10d %s", count, name); 465 } 466 } 467 468 #if INCLUDE_SERVICES // Heap dumping/inspection supported 469 HeapDumpDCmd::HeapDumpDCmd(outputStream* output, bool heap) : 470 DCmdWithParser(output, heap), 471 _filename("filename","Name of the dump file", "STRING",true), 472 _all("-all", "Dump all objects, including unreachable objects", 473 "BOOLEAN", false, "false") { 474 _dcmdparser.add_dcmd_option(&_all); 475 _dcmdparser.add_dcmd_argument(&_filename); 476 } 477 478 void HeapDumpDCmd::execute(DCmdSource source, TRAPS) { 479 // Request a full GC before heap dump if _all is false 480 // This helps reduces the amount of unreachable objects in the dump 481 // and makes it easier to browse. 482 HeapDumper dumper(!_all.value() /* request GC if _all is false*/); 483 int res = dumper.dump(_filename.value()); 484 if (res == 0) { 485 output()->print_cr("Heap dump file created"); 486 } else { 487 // heap dump failed 488 ResourceMark rm; 489 char* error = dumper.error_as_C_string(); 490 if (error == NULL) { 491 output()->print_cr("Dump failed - reason unknown"); 492 } else { 493 output()->print_cr("%s", error); 494 } 495 } 496 } 497 498 int HeapDumpDCmd::num_arguments() { 499 ResourceMark rm; 500 HeapDumpDCmd* dcmd = new HeapDumpDCmd(NULL, false); 501 if (dcmd != NULL) { 502 DCmdMark mark(dcmd); 503 return dcmd->_dcmdparser.num_arguments(); 504 } else { 505 return 0; 506 } 507 } 508 509 ClassHistogramDCmd::ClassHistogramDCmd(outputStream* output, bool heap) : 510 DCmdWithParser(output, heap), 511 _all("-all", "Inspect all objects, including unreachable objects", 512 "BOOLEAN", false, "false") { 513 _dcmdparser.add_dcmd_option(&_all); 514 } 515 516 void ClassHistogramDCmd::execute(DCmdSource source, TRAPS) { 517 VM_GC_HeapInspection heapop(output(), 518 !_all.value() /* request full gc if false */); 519 VMThread::execute(&heapop); 520 } 521 522 int ClassHistogramDCmd::num_arguments() { 523 ResourceMark rm; 524 ClassHistogramDCmd* dcmd = new ClassHistogramDCmd(NULL, false); 525 if (dcmd != NULL) { 526 DCmdMark mark(dcmd); 527 return dcmd->_dcmdparser.num_arguments(); 528 } else { 529 return 0; 530 } 531 } 532 533 #define DEFAULT_COLUMNS "InstBytes,KlassBytes,CpAll,annotations,MethodCount,Bytecodes,MethodAll,ROAll,RWAll,Total" 534 ClassStatsDCmd::ClassStatsDCmd(outputStream* output, bool heap) : 535 DCmdWithParser(output, heap), 536 _csv("-csv", "Print in CSV (comma-separated values) format for spreadsheets", 537 "BOOLEAN", false, "false"), 538 _all("-all", "Show all columns", 539 "BOOLEAN", false, "false"), 540 _help("-help", "Show meaning of all the columns", 541 "BOOLEAN", false, "false"), 542 _columns("columns", "Comma-separated list of all the columns to show. " 543 "If not specified, the following columns are shown: " DEFAULT_COLUMNS, 544 "STRING", false) { 545 _dcmdparser.add_dcmd_option(&_all); 546 _dcmdparser.add_dcmd_option(&_csv); 547 _dcmdparser.add_dcmd_option(&_help); 548 _dcmdparser.add_dcmd_argument(&_columns); 549 } 550 551 void ClassStatsDCmd::execute(DCmdSource source, TRAPS) { 552 VM_GC_HeapInspection heapop(output(), 553 true /* request_full_gc */); 554 heapop.set_csv_format(_csv.value()); 555 heapop.set_print_help(_help.value()); 556 heapop.set_print_class_stats(true); 557 if (_all.value()) { 558 if (_columns.has_value()) { 559 output()->print_cr("Cannot specify -all and individual columns at the same time"); 560 return; 561 } else { 562 heapop.set_columns(NULL); 563 } 564 } else { 565 if (_columns.has_value()) { 566 heapop.set_columns(_columns.value()); 567 } else { 568 heapop.set_columns(DEFAULT_COLUMNS); 569 } 570 } 571 VMThread::execute(&heapop); 572 } 573 574 int ClassStatsDCmd::num_arguments() { 575 ResourceMark rm; 576 ClassStatsDCmd* dcmd = new ClassStatsDCmd(NULL, false); 577 if (dcmd != NULL) { 578 DCmdMark mark(dcmd); 579 return dcmd->_dcmdparser.num_arguments(); 580 } else { 581 return 0; 582 } 583 } 584 #endif // INCLUDE_SERVICES 585 586 ThreadDumpDCmd::ThreadDumpDCmd(outputStream* output, bool heap) : 587 DCmdWithParser(output, heap), 588 _locks("-l", "print java.util.concurrent locks", "BOOLEAN", false, "false") { 589 _dcmdparser.add_dcmd_option(&_locks); 590 } 591 592 void ThreadDumpDCmd::execute(DCmdSource source, TRAPS) { 593 // thread stacks 594 VM_PrintThreads op1(output(), _locks.value()); 595 VMThread::execute(&op1); 596 597 // JNI global handles 598 VM_PrintJNI op2(output()); 599 VMThread::execute(&op2); 600 601 // Deadlock detection 602 VM_FindDeadlocks op3(output()); 603 VMThread::execute(&op3); 604 } 605 606 int ThreadDumpDCmd::num_arguments() { 607 ResourceMark rm; 608 ThreadDumpDCmd* dcmd = new ThreadDumpDCmd(NULL, false); 609 if (dcmd != NULL) { 610 DCmdMark mark(dcmd); 611 return dcmd->_dcmdparser.num_arguments(); 612 } else { 613 return 0; 614 } 615 } 616 617 // Enhanced JMX Agent support 618 619 JMXStartRemoteDCmd::JMXStartRemoteDCmd(outputStream *output, bool heap_allocated) : 620 621 DCmdWithParser(output, heap_allocated), 622 623 _config_file 624 ("config.file", 625 "set com.sun.management.config.file", "STRING", false), 626 627 _jmxremote_host 628 ("jmxremote.host", 629 "set com.sun.management.jmxremote.host", "STRING", false), 630 631 _jmxremote_port 632 ("jmxremote.port", 633 "set com.sun.management.jmxremote.port", "STRING", false), 634 635 _jmxremote_rmi_port 636 ("jmxremote.rmi.port", 637 "set com.sun.management.jmxremote.rmi.port", "STRING", false), 638 639 _jmxremote_ssl 640 ("jmxremote.ssl", 641 "set com.sun.management.jmxremote.ssl", "STRING", false), 642 643 _jmxremote_registry_ssl 644 ("jmxremote.registry.ssl", 645 "set com.sun.management.jmxremote.registry.ssl", "STRING", false), 646 647 _jmxremote_authenticate 648 ("jmxremote.authenticate", 649 "set com.sun.management.jmxremote.authenticate", "STRING", false), 650 651 _jmxremote_password_file 652 ("jmxremote.password.file", 653 "set com.sun.management.jmxremote.password.file", "STRING", false), 654 655 _jmxremote_access_file 656 ("jmxremote.access.file", 657 "set com.sun.management.jmxremote.access.file", "STRING", false), 658 659 _jmxremote_login_config 660 ("jmxremote.login.config", 661 "set com.sun.management.jmxremote.login.config", "STRING", false), 662 663 _jmxremote_ssl_enabled_cipher_suites 664 ("jmxremote.ssl.enabled.cipher.suites", 665 "set com.sun.management.jmxremote.ssl.enabled.cipher.suite", "STRING", false), 666 667 _jmxremote_ssl_enabled_protocols 668 ("jmxremote.ssl.enabled.protocols", 669 "set com.sun.management.jmxremote.ssl.enabled.protocols", "STRING", false), 670 671 _jmxremote_ssl_need_client_auth 672 ("jmxremote.ssl.need.client.auth", 673 "set com.sun.management.jmxremote.need.client.auth", "STRING", false), 674 675 _jmxremote_ssl_config_file 676 ("jmxremote.ssl.config.file", 677 "set com.sun.management.jmxremote.ssl_config_file", "STRING", false), 678 679 // JDP Protocol support 680 _jmxremote_autodiscovery 681 ("jmxremote.autodiscovery", 682 "set com.sun.management.jmxremote.autodiscovery", "STRING", false), 683 684 _jdp_port 685 ("jdp.port", 686 "set com.sun.management.jdp.port", "INT", false), 687 688 _jdp_address 689 ("jdp.address", 690 "set com.sun.management.jdp.address", "STRING", false), 691 692 _jdp_source_addr 693 ("jdp.source_addr", 694 "set com.sun.management.jdp.source_addr", "STRING", false), 695 696 _jdp_ttl 697 ("jdp.ttl", 698 "set com.sun.management.jdp.ttl", "INT", false), 699 700 _jdp_pause 701 ("jdp.pause", 702 "set com.sun.management.jdp.pause", "INT", false), 703 704 _jdp_name 705 ("jdp.name", 706 "set com.sun.management.jdp.name", "STRING", false) 707 708 { 709 _dcmdparser.add_dcmd_option(&_config_file); 710 _dcmdparser.add_dcmd_option(&_jmxremote_host); 711 _dcmdparser.add_dcmd_option(&_jmxremote_port); 712 _dcmdparser.add_dcmd_option(&_jmxremote_rmi_port); 713 _dcmdparser.add_dcmd_option(&_jmxremote_ssl); 714 _dcmdparser.add_dcmd_option(&_jmxremote_registry_ssl); 715 _dcmdparser.add_dcmd_option(&_jmxremote_authenticate); 716 _dcmdparser.add_dcmd_option(&_jmxremote_password_file); 717 _dcmdparser.add_dcmd_option(&_jmxremote_access_file); 718 _dcmdparser.add_dcmd_option(&_jmxremote_login_config); 719 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_cipher_suites); 720 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_protocols); 721 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_need_client_auth); 722 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_config_file); 723 _dcmdparser.add_dcmd_option(&_jmxremote_autodiscovery); 724 _dcmdparser.add_dcmd_option(&_jdp_port); 725 _dcmdparser.add_dcmd_option(&_jdp_address); 726 _dcmdparser.add_dcmd_option(&_jdp_source_addr); 727 _dcmdparser.add_dcmd_option(&_jdp_ttl); 728 _dcmdparser.add_dcmd_option(&_jdp_pause); 729 _dcmdparser.add_dcmd_option(&_jdp_name); 730 } 731 732 733 int JMXStartRemoteDCmd::num_arguments() { 734 ResourceMark rm; 735 JMXStartRemoteDCmd* dcmd = new JMXStartRemoteDCmd(NULL, false); 736 if (dcmd != NULL) { 737 DCmdMark mark(dcmd); 738 return dcmd->_dcmdparser.num_arguments(); 739 } else { 740 return 0; 741 } 742 } 743 744 745 void JMXStartRemoteDCmd::execute(DCmdSource source, TRAPS) { 746 ResourceMark rm(THREAD); 747 HandleMark hm(THREAD); 748 749 // Load and initialize the jdk.internal.agent.Agent class 750 // invoke startRemoteManagementAgent(string) method to start 751 // the remote management server. 752 // throw java.lang.NoSuchMethodError if the method doesn't exist 753 754 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 755 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK); 756 instanceKlassHandle ik (THREAD, k); 757 758 JavaValue result(T_VOID); 759 760 // Pass all command line arguments to java as key=value,... 761 // All checks are done on java side 762 763 int len = 0; 764 stringStream options; 765 char comma[2] = {0,0}; 766 767 // Leave default values on Agent.class side and pass only 768 // agruments explicitly set by user. All arguments passed 769 // to jcmd override properties with the same name set by 770 // command line with -D or by managmenent.properties 771 // file. 772 #define PUT_OPTION(a) \ 773 do { \ 774 if ( (a).is_set() ){ \ 775 if ( *((a).type()) == 'I' ) { \ 776 options.print("%scom.sun.management.%s=" JLONG_FORMAT, comma, (a).name(), (jlong)((a).value())); \ 777 } else { \ 778 options.print("%scom.sun.management.%s=%s", comma, (a).name(), (char*)((a).value())); \ 779 } \ 780 comma[0] = ','; \ 781 }\ 782 } while(0); 783 784 785 PUT_OPTION(_config_file); 786 PUT_OPTION(_jmxremote_host); 787 PUT_OPTION(_jmxremote_port); 788 PUT_OPTION(_jmxremote_rmi_port); 789 PUT_OPTION(_jmxremote_ssl); 790 PUT_OPTION(_jmxremote_registry_ssl); 791 PUT_OPTION(_jmxremote_authenticate); 792 PUT_OPTION(_jmxremote_password_file); 793 PUT_OPTION(_jmxremote_access_file); 794 PUT_OPTION(_jmxremote_login_config); 795 PUT_OPTION(_jmxremote_ssl_enabled_cipher_suites); 796 PUT_OPTION(_jmxremote_ssl_enabled_protocols); 797 PUT_OPTION(_jmxremote_ssl_need_client_auth); 798 PUT_OPTION(_jmxremote_ssl_config_file); 799 PUT_OPTION(_jmxremote_autodiscovery); 800 PUT_OPTION(_jdp_port); 801 PUT_OPTION(_jdp_address); 802 PUT_OPTION(_jdp_source_addr); 803 PUT_OPTION(_jdp_ttl); 804 PUT_OPTION(_jdp_pause); 805 PUT_OPTION(_jdp_name); 806 807 #undef PUT_OPTION 808 809 Handle str = java_lang_String::create_from_str(options.as_string(), CHECK); 810 JavaCalls::call_static(&result, ik, vmSymbols::startRemoteAgent_name(), vmSymbols::string_void_signature(), str, CHECK); 811 } 812 813 JMXStartLocalDCmd::JMXStartLocalDCmd(outputStream *output, bool heap_allocated) : 814 DCmd(output, heap_allocated) { 815 // do nothing 816 } 817 818 void JMXStartLocalDCmd::execute(DCmdSource source, TRAPS) { 819 ResourceMark rm(THREAD); 820 HandleMark hm(THREAD); 821 822 // Load and initialize the jdk.internal.agent.Agent class 823 // invoke startLocalManagementAgent(void) method to start 824 // the local management server 825 // throw java.lang.NoSuchMethodError if method doesn't exist 826 827 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 828 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK); 829 instanceKlassHandle ik (THREAD, k); 830 831 JavaValue result(T_VOID); 832 JavaCalls::call_static(&result, ik, vmSymbols::startLocalAgent_name(), vmSymbols::void_method_signature(), CHECK); 833 } 834 835 void JMXStopRemoteDCmd::execute(DCmdSource source, TRAPS) { 836 ResourceMark rm(THREAD); 837 HandleMark hm(THREAD); 838 839 // Load and initialize the jdk.internal.agent.Agent class 840 // invoke stopRemoteManagementAgent method to stop the 841 // management server 842 // throw java.lang.NoSuchMethodError if method doesn't exist 843 844 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 845 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK); 846 instanceKlassHandle ik (THREAD, k); 847 848 JavaValue result(T_VOID); 849 JavaCalls::call_static(&result, ik, vmSymbols::stopRemoteAgent_name(), vmSymbols::void_method_signature(), CHECK); 850 } 851 852 JMXStatusDCmd::JMXStatusDCmd(outputStream *output, bool heap_allocated) : 853 DCmd(output, heap_allocated) { 854 // do nothing 855 } 856 857 void JMXStatusDCmd::execute(DCmdSource source, TRAPS) { 858 ResourceMark rm(THREAD); 859 HandleMark hm(THREAD); 860 861 // Load and initialize the jdk.internal.agent.Agent class 862 // invoke getManagementAgentStatus() method to generate the status info 863 // throw java.lang.NoSuchMethodError if method doesn't exist 864 865 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); 866 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK); 867 instanceKlassHandle ik (THREAD, k); 868 869 JavaValue result(T_OBJECT); 870 JavaCalls::call_static(&result, ik, vmSymbols::getAgentStatus_name(), vmSymbols::void_string_signature(), CHECK); 871 872 jvalue* jv = (jvalue*) result.get_value_addr(); 873 oop str = (oop) jv->l; 874 if (str != NULL) { 875 char* out = java_lang_String::as_utf8_string(str); 876 if (out) { 877 output()->print_cr("%s", out); 878 return; 879 } 880 } 881 output()->print_cr("Error obtaining management agent status"); 882 } 883 884 VMDynamicLibrariesDCmd::VMDynamicLibrariesDCmd(outputStream *output, bool heap_allocated) : 885 DCmd(output, heap_allocated) { 886 // do nothing 887 } 888 889 void VMDynamicLibrariesDCmd::execute(DCmdSource source, TRAPS) { 890 os::print_dll_info(output()); 891 output()->cr(); 892 } 893 894 void CompileQueueDCmd::execute(DCmdSource source, TRAPS) { 895 VM_PrintCompileQueue printCompileQueueOp(output()); 896 VMThread::execute(&printCompileQueueOp); 897 } 898 899 void CodeListDCmd::execute(DCmdSource source, TRAPS) { 900 CodeCache::print_codelist(output()); 901 } 902 903 void CodeCacheDCmd::execute(DCmdSource source, TRAPS) { 904 CodeCache::print_layout(output()); 905 } 906 907 void CompilerDirectivesPrintDCmd::execute(DCmdSource source, TRAPS) { 908 DirectivesStack::print(output()); 909 } 910 911 CompilerDirectivesAddDCmd::CompilerDirectivesAddDCmd(outputStream* output, bool heap) : 912 DCmdWithParser(output, heap), 913 _filename("filename","Name of the directives file", "STRING",true) { 914 _dcmdparser.add_dcmd_argument(&_filename); 915 } 916 917 void CompilerDirectivesAddDCmd::execute(DCmdSource source, TRAPS) { 918 DirectivesParser::parse_from_file(_filename.value(), output()); 919 } 920 921 int CompilerDirectivesAddDCmd::num_arguments() { 922 ResourceMark rm; 923 CompilerDirectivesAddDCmd* dcmd = new CompilerDirectivesAddDCmd(NULL, false); 924 if (dcmd != NULL) { 925 DCmdMark mark(dcmd); 926 return dcmd->_dcmdparser.num_arguments(); 927 } else { 928 return 0; 929 } 930 } 931 932 void CompilerDirectivesRemoveDCmd::execute(DCmdSource source, TRAPS) { 933 DirectivesStack::pop(1); 934 } 935 936 void CompilerDirectivesClearDCmd::execute(DCmdSource source, TRAPS) { 937 DirectivesStack::clear(); 938 } 939 #if INCLUDE_SERVICES 940 ClassHierarchyDCmd::ClassHierarchyDCmd(outputStream* output, bool heap) : 941 DCmdWithParser(output, heap), 942 _print_interfaces("-i", "Inherited interfaces should be printed.", "BOOLEAN", false, "false"), 943 _print_subclasses("-s", "If a classname is specified, print its subclasses. " 944 "Otherwise only its superclasses are printed.", "BOOLEAN", false, "false"), 945 _classname("classname", "Name of class whose hierarchy should be printed. " 946 "If not specified, all class hierarchies are printed.", 947 "STRING", false) { 948 _dcmdparser.add_dcmd_option(&_print_interfaces); 949 _dcmdparser.add_dcmd_option(&_print_subclasses); 950 _dcmdparser.add_dcmd_argument(&_classname); 951 } 952 953 void ClassHierarchyDCmd::execute(DCmdSource source, TRAPS) { 954 VM_PrintClassHierarchy printClassHierarchyOp(output(), _print_interfaces.value(), 955 _print_subclasses.value(), _classname.value()); 956 VMThread::execute(&printClassHierarchyOp); 957 } 958 959 int ClassHierarchyDCmd::num_arguments() { 960 ResourceMark rm; 961 ClassHierarchyDCmd* dcmd = new ClassHierarchyDCmd(NULL, false); 962 if (dcmd != NULL) { 963 DCmdMark mark(dcmd); 964 return dcmd->_dcmdparser.num_arguments(); 965 } else { 966 return 0; 967 } 968 } 969 970 #endif 971 972 class VM_DumpTouchedMethods : public VM_Operation { 973 private: 974 outputStream* _out; 975 public: 976 VM_DumpTouchedMethods(outputStream* out) { 977 _out = out; 978 } 979 980 virtual VMOp_Type type() const { return VMOp_DumpTouchedMethods; } 981 982 virtual void doit() { 983 Method::print_touched_methods(_out); 984 } 985 }; 986 987 TouchedMethodsDCmd::TouchedMethodsDCmd(outputStream* output, bool heap) : 988 DCmdWithParser(output, heap) 989 {} 990 991 void TouchedMethodsDCmd::execute(DCmdSource source, TRAPS) { 992 if (!LogTouchedMethods) { 993 output()->print_cr("VM.print_touched_methods command requires -XX:+LogTouchedMethods"); 994 return; 995 } 996 VM_DumpTouchedMethods dumper(output()); 997 VMThread::execute(&dumper); 998 } 999 1000 int TouchedMethodsDCmd::num_arguments() { 1001 return 0; 1002 }