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
46 static void loadAgentModule(TRAPS) {
47 ResourceMark rm(THREAD);
48 HandleMark hm(THREAD);
49
50 JavaValue result(T_OBJECT);
51 Handle h_module_name = java_lang_String::create_from_str("jdk.management.agent", CHECK);
52 JavaCalls::call_static(&result,
53 SystemDictionary::module_Modules_klass(),
54 vmSymbols::loadModule_name(),
55 vmSymbols::loadModule_signature(),
56 h_module_name,
57 THREAD);
58 }
59
60 void DCmdRegistrant::register_dcmds(){
61 // Registration of the diagnostic commands
62 // First argument specifies which interfaces will export the command
63 // Second argument specifies if the command is enabled
64 // Third argument specifies if the command is hidden
65 uint32_t full_export = DCmd_Source_Internal | DCmd_Source_AttachAPI
66 | DCmd_Source_MBean;
67 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HelpDCmd>(full_export, true, false));
68 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VersionDCmd>(full_export, true, false));
69 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CommandLineDCmd>(full_export, true, false));
70 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintSystemPropertiesDCmd>(full_export, true, false));
71 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintVMFlagsDCmd>(full_export, true, false));
72 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SetVMFlagDCmd>(full_export, true, false));
73 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMDynamicLibrariesDCmd>(full_export, true, false));
74 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMUptimeDCmd>(full_export, true, false));
75 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMInfoDCmd>(full_export, true, false));
76 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SystemGCDCmd>(full_export, true, false));
77 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<RunFinalizationDCmd>(full_export, true, false));
78 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapInfoDCmd>(full_export, true, false));
79 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<FinalizerInfoDCmd>(full_export, true, false));
80 #if INCLUDE_SERVICES
81 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapDumpDCmd>(DCmd_Source_Internal | DCmd_Source_AttachAPI, true, false));
82 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHistogramDCmd>(full_export, true, false));
83 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassStatsDCmd>(full_export, true, false));
84 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHierarchyDCmd>(full_export, true, false));
85 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SymboltableDCmd>(full_export, true, false));
86 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<StringtableDCmd>(full_export, true, false));
87 #if INCLUDE_JVMTI // Both JVMTI and SERVICES have to be enabled to have this dcmd
88 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JVMTIAgentLoadDCmd>(full_export, true, false));
89 #endif // INCLUDE_JVMTI
90 #endif // INCLUDE_SERVICES
91 #if INCLUDE_JVMTI
92 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JVMTIDataDumpDCmd>(full_export, true, false));
93 #endif // INCLUDE_JVMTI
94 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ThreadDumpDCmd>(full_export, true, false));
95 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassLoaderStatsDCmd>(full_export, true, false));
96 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompileQueueDCmd>(full_export, true, false));
97 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeListDCmd>(full_export, true, false));
98 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeCacheDCmd>(full_export, true, false));
99 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<TouchedMethodsDCmd>(full_export, true, false));
100
101 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesPrintDCmd>(full_export, true, false));
102 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesAddDCmd>(full_export, true, false));
103 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesRemoveDCmd>(full_export, true, false));
104 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesClearDCmd>(full_export, true, false));
105
106 // Enhanced JMX Agent Support
107 // These commands won't be exported via the DiagnosticCommandMBean until an
108 // appropriate permission is created for them
109 uint32_t jmx_agent_export_flags = DCmd_Source_Internal | DCmd_Source_AttachAPI;
110 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartRemoteDCmd>(jmx_agent_export_flags, true,false));
111 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartLocalDCmd>(jmx_agent_export_flags, true,false));
112 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStopRemoteDCmd>(jmx_agent_export_flags, true,false));
113 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStatusDCmd>(jmx_agent_export_flags, true,false));
114
115 }
116
117 #ifndef HAVE_EXTRA_DCMD
118 void DCmdRegistrant::register_dcmds_ext(){
119 // Do nothing here
120 }
121 #endif
122
123
124 HelpDCmd::HelpDCmd(outputStream* output, bool heap) : DCmdWithParser(output, heap),
125 _all("-all", "Show help for all commands", "BOOLEAN", false, "false"),
126 _cmd("command name", "The name of the command for which we want help",
127 "STRING", false) {
128 _dcmdparser.add_dcmd_option(&_all);
129 _dcmdparser.add_dcmd_argument(&_cmd);
130 };
131
132 void HelpDCmd::execute(DCmdSource source, TRAPS) {
133 if (_all.value()) {
134 GrowableArray<const char*>* cmd_list = DCmdFactory::DCmd_list(source);
135 for (int i = 0; i < cmd_list->length(); i++) {
136 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i),
137 strlen(cmd_list->at(i)));
138 output()->print_cr("%s%s", factory->name(),
139 factory->is_enabled() ? "" : " [disabled]");
140 output()->print_cr("\t%s", factory->description());
141 output()->cr();
142 factory = factory->next();
143 }
144 } else if (_cmd.has_value()) {
145 DCmd* cmd = NULL;
146 DCmdFactory* factory = DCmdFactory::factory(source, _cmd.value(),
147 strlen(_cmd.value()));
148 if (factory != NULL) {
149 output()->print_cr("%s%s", factory->name(),
150 factory->is_enabled() ? "" : " [disabled]");
151 output()->print_cr("%s", factory->description());
152 output()->print_cr("\nImpact: %s", factory->impact());
153 JavaPermission p = factory->permission();
154 if(p._class != NULL) {
155 if(p._action != NULL) {
156 output()->print_cr("\nPermission: %s(%s, %s)",
157 p._class, p._name == NULL ? "null" : p._name, p._action);
158 } else {
159 output()->print_cr("\nPermission: %s(%s)",
160 p._class, p._name == NULL ? "null" : p._name);
161 }
162 }
163 output()->cr();
164 cmd = factory->create_resource_instance(output());
165 if (cmd != NULL) {
166 DCmdMark mark(cmd);
167 cmd->print_help(factory->name());
168 }
169 } else {
170 output()->print_cr("Help unavailable : '%s' : No such command", _cmd.value());
171 }
172 } else {
173 output()->print_cr("The following commands are available:");
174 GrowableArray<const char *>* cmd_list = DCmdFactory::DCmd_list(source);
175 for (int i = 0; i < cmd_list->length(); i++) {
176 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i),
177 strlen(cmd_list->at(i)));
178 output()->print_cr("%s%s", factory->name(),
179 factory->is_enabled() ? "" : " [disabled]");
180 factory = factory->_next;
181 }
182 output()->print_cr("\nFor more information about a specific command use 'help <command>'.");
183 }
184 }
185
186 int HelpDCmd::num_arguments() {
187 ResourceMark rm;
188 HelpDCmd* dcmd = new HelpDCmd(NULL, false);
189 if (dcmd != NULL) {
190 DCmdMark mark(dcmd);
191 return dcmd->_dcmdparser.num_arguments();
192 } else {
193 return 0;
194 }
195 }
196
197 void VersionDCmd::execute(DCmdSource source, TRAPS) {
198 output()->print_cr("%s version %s", Abstract_VM_Version::vm_name(),
199 Abstract_VM_Version::vm_release());
200 JDK_Version jdk_version = JDK_Version::current();
201 if (jdk_version.patch_version() > 0) {
202 output()->print_cr("JDK %d.%d.%d.%d", jdk_version.major_version(),
203 jdk_version.minor_version(), jdk_version.security_version(),
204 jdk_version.patch_version());
205 } else {
206 output()->print_cr("JDK %d.%d.%d", jdk_version.major_version(),
207 jdk_version.minor_version(), jdk_version.security_version());
208 }
209 }
210
211 PrintVMFlagsDCmd::PrintVMFlagsDCmd(outputStream* output, bool heap) :
212 DCmdWithParser(output, heap),
213 _all("-all", "Print all flags supported by the VM", "BOOLEAN", false, "false") {
214 _dcmdparser.add_dcmd_option(&_all);
215 }
216
217 void PrintVMFlagsDCmd::execute(DCmdSource source, TRAPS) {
218 if (_all.value()) {
219 CommandLineFlags::printFlags(output(), true);
220 } else {
221 CommandLineFlags::printSetFlags(output());
222 }
223 }
224
225 int PrintVMFlagsDCmd::num_arguments() {
226 ResourceMark rm;
227 PrintVMFlagsDCmd* dcmd = new PrintVMFlagsDCmd(NULL, false);
228 if (dcmd != NULL) {
229 DCmdMark mark(dcmd);
230 return dcmd->_dcmdparser.num_arguments();
231 } else {
232 return 0;
233 }
234 }
235
236 SetVMFlagDCmd::SetVMFlagDCmd(outputStream* output, bool heap) :
237 DCmdWithParser(output, heap),
238 _flag("flag name", "The name of the flag we want to set",
239 "STRING", true),
240 _value("string value", "The value we want to set", "STRING", false) {
241 _dcmdparser.add_dcmd_argument(&_flag);
242 _dcmdparser.add_dcmd_argument(&_value);
243 }
244
245 void SetVMFlagDCmd::execute(DCmdSource source, TRAPS) {
246 const char* val = NULL;
247 if (_value.value() != NULL) {
248 val = _value.value();
249 }
250
251 FormatBuffer<80> err_msg("%s", "");
252 int ret = WriteableFlags::set_flag(_flag.value(), val, Flag::MANAGEMENT, err_msg);
253
254 if (ret != Flag::SUCCESS) {
255 output()->print_cr("%s", err_msg.buffer());
256 }
257 }
258
259 int SetVMFlagDCmd::num_arguments() {
260 ResourceMark rm;
261 SetVMFlagDCmd* dcmd = new SetVMFlagDCmd(NULL, false);
262 if (dcmd != NULL) {
263 DCmdMark mark(dcmd);
264 return dcmd->_dcmdparser.num_arguments();
265 } else {
266 return 0;
267 }
268 }
269
270 void JVMTIDataDumpDCmd::execute(DCmdSource source, TRAPS) {
271 if (JvmtiExport::should_post_data_dump()) {
272 JvmtiExport::post_data_dump();
273 }
274 }
275
276 #if INCLUDE_SERVICES
277 JVMTIAgentLoadDCmd::JVMTIAgentLoadDCmd(outputStream* output, bool heap) :
278 DCmdWithParser(output, heap),
279 _libpath("library path", "Absolute path of the JVMTI agent to load.",
280 "STRING", true),
281 _option("agent option", "Option string to pass the agent.", "STRING", false) {
282 _dcmdparser.add_dcmd_argument(&_libpath);
283 _dcmdparser.add_dcmd_argument(&_option);
284 }
285
286 void JVMTIAgentLoadDCmd::execute(DCmdSource source, TRAPS) {
287
288 if (_libpath.value() == NULL) {
289 output()->print_cr("JVMTI.agent_load dcmd needs library path.");
290 return;
291 }
292
293 char *suffix = strrchr(_libpath.value(), '.');
294 bool is_java_agent = (suffix != NULL) && (strncmp(".jar", suffix, 4) == 0);
295
296 if (is_java_agent) {
297 if (_option.value() == NULL) {
298 JvmtiExport::load_agent_library("instrument", "false",
299 _libpath.value(), output());
300 } else {
301 size_t opt_len = strlen(_libpath.value()) + strlen(_option.value()) + 2;
302 if (opt_len > 4096) {
303 output()->print_cr("JVMTI agent attach failed: Options is too long.");
304 return;
305 }
306
307 char *opt = (char *)os::malloc(opt_len, mtInternal);
308 if (opt == NULL) {
309 output()->print_cr("JVMTI agent attach failed: "
310 "Could not allocate " SIZE_FORMAT " bytes for argument.",
311 opt_len);
312 return;
313 }
314
315 jio_snprintf(opt, opt_len, "%s=%s", _libpath.value(), _option.value());
316 JvmtiExport::load_agent_library("instrument", "false", opt, output());
317
318 os::free(opt);
319 }
320 } else {
321 JvmtiExport::load_agent_library(_libpath.value(), "true",
322 _option.value(), output());
323 }
324 }
325
326 int JVMTIAgentLoadDCmd::num_arguments() {
327 ResourceMark rm;
328 JVMTIAgentLoadDCmd* dcmd = new JVMTIAgentLoadDCmd(NULL, false);
329 if (dcmd != NULL) {
330 DCmdMark mark(dcmd);
331 return dcmd->_dcmdparser.num_arguments();
332 } else {
333 return 0;
334 }
335 }
336 #endif // INCLUDE_SERVICES
337
338 void PrintSystemPropertiesDCmd::execute(DCmdSource source, TRAPS) {
339 // load VMSupport
340 Symbol* klass = vmSymbols::jdk_internal_vm_VMSupport();
341 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK);
342 InstanceKlass* ik = InstanceKlass::cast(k);
343 if (ik->should_be_initialized()) {
344 ik->initialize(THREAD);
345 }
346 if (HAS_PENDING_EXCEPTION) {
347 java_lang_Throwable::print(PENDING_EXCEPTION, output());
348 output()->cr();
349 CLEAR_PENDING_EXCEPTION;
350 return;
351 }
352
353 // invoke the serializePropertiesToByteArray method
354 JavaValue result(T_OBJECT);
355 JavaCallArguments args;
356
357 Symbol* signature = vmSymbols::serializePropertiesToByteArray_signature();
358 JavaCalls::call_static(&result,
359 ik,
360 vmSymbols::serializePropertiesToByteArray_name(),
361 signature,
362 &args,
363 THREAD);
364 if (HAS_PENDING_EXCEPTION) {
365 java_lang_Throwable::print(PENDING_EXCEPTION, output());
366 output()->cr();
367 CLEAR_PENDING_EXCEPTION;
368 return;
369 }
370
371 // The result should be a [B
372 oop res = (oop)result.get_jobject();
373 assert(res->is_typeArray(), "just checking");
374 assert(TypeArrayKlass::cast(res->klass())->element_type() == T_BYTE, "just checking");
375
376 // copy the bytes to the output stream
377 typeArrayOop ba = typeArrayOop(res);
378 jbyte* addr = typeArrayOop(res)->byte_at_addr(0);
379 output()->print_raw((const char*)addr, ba->length());
380 }
381
382 VMUptimeDCmd::VMUptimeDCmd(outputStream* output, bool heap) :
383 DCmdWithParser(output, heap),
384 _date("-date", "Add a prefix with current date", "BOOLEAN", false, "false") {
385 _dcmdparser.add_dcmd_option(&_date);
386 }
387
388 void VMUptimeDCmd::execute(DCmdSource source, TRAPS) {
389 if (_date.value()) {
390 output()->date_stamp(true, "", ": ");
391 }
392 output()->time_stamp().update_to(tty->time_stamp().ticks());
393 output()->stamp();
394 output()->print_cr(" s");
395 }
396
397 int VMUptimeDCmd::num_arguments() {
398 ResourceMark rm;
399 VMUptimeDCmd* dcmd = new VMUptimeDCmd(NULL, false);
400 if (dcmd != NULL) {
401 DCmdMark mark(dcmd);
402 return dcmd->_dcmdparser.num_arguments();
403 } else {
404 return 0;
405 }
406 }
407
408 void VMInfoDCmd::execute(DCmdSource source, TRAPS) {
409 VMError::print_vm_info(_output);
410 }
411
412 void SystemGCDCmd::execute(DCmdSource source, TRAPS) {
413 if (!DisableExplicitGC) {
414 Universe::heap()->collect(GCCause::_dcmd_gc_run);
415 } else {
416 output()->print_cr("Explicit GC is disabled, no GC has been performed.");
417 }
418 }
419
420 void RunFinalizationDCmd::execute(DCmdSource source, TRAPS) {
421 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_System(),
422 true, CHECK);
423 JavaValue result(T_VOID);
424 JavaCalls::call_static(&result, k,
425 vmSymbols::run_finalization_name(),
426 vmSymbols::void_method_signature(), CHECK);
427 }
428
429 void HeapInfoDCmd::execute(DCmdSource source, TRAPS) {
430 MutexLocker hl(Heap_lock);
431 Universe::heap()->print_on(output());
432 }
433
434 void FinalizerInfoDCmd::execute(DCmdSource source, TRAPS) {
435 ResourceMark rm;
436
437 Klass* k = SystemDictionary::resolve_or_fail(
438 vmSymbols::finalizer_histogram_klass(), true, CHECK);
439
440 JavaValue result(T_ARRAY);
441
442 // We are calling lang.ref.FinalizerHistogram.getFinalizerHistogram() method
443 // and expect it to return array of FinalizerHistogramEntry as Object[]
444
445 JavaCalls::call_static(&result, k,
446 vmSymbols::get_finalizer_histogram_name(),
447 vmSymbols::void_finalizer_histogram_entry_array_signature(), CHECK);
448
449 objArrayOop result_oop = (objArrayOop) result.get_jobject();
450 if (result_oop->length() == 0) {
451 output()->print_cr("No instances waiting for finalization found");
452 return;
453 }
454
455 oop foop = result_oop->obj_at(0);
456 InstanceKlass* ik = InstanceKlass::cast(foop->klass());
457
458 fieldDescriptor count_fd, name_fd;
459
460 Klass* count_res = ik->find_field(
461 vmSymbols::finalizer_histogram_entry_count_field(), vmSymbols::int_signature(), &count_fd);
462
463 Klass* name_res = ik->find_field(
464 vmSymbols::finalizer_histogram_entry_name_field(), vmSymbols::string_signature(), &name_fd);
465
466 assert(count_res != NULL && name_res != NULL, "Unexpected layout of FinalizerHistogramEntry");
467
468 output()->print_cr("Unreachable instances waiting for finalization");
469 output()->print_cr("#instances class name");
470 output()->print_cr("-----------------------");
471
472 for (int i = 0; i < result_oop->length(); ++i) {
473 oop element_oop = result_oop->obj_at(i);
474 oop str_oop = element_oop->obj_field(name_fd.offset());
475 char *name = java_lang_String::as_utf8_string(str_oop);
476 int count = element_oop->int_field(count_fd.offset());
477 output()->print_cr("%10d %s", count, name);
478 }
479 }
480
481 #if INCLUDE_SERVICES // Heap dumping/inspection supported
482 HeapDumpDCmd::HeapDumpDCmd(outputStream* output, bool heap) :
483 DCmdWithParser(output, heap),
484 _filename("filename","Name of the dump file", "STRING",true),
485 _all("-all", "Dump all objects, including unreachable objects",
486 "BOOLEAN", false, "false") {
487 _dcmdparser.add_dcmd_option(&_all);
488 _dcmdparser.add_dcmd_argument(&_filename);
489 }
490
491 void HeapDumpDCmd::execute(DCmdSource source, TRAPS) {
492 // Request a full GC before heap dump if _all is false
493 // This helps reduces the amount of unreachable objects in the dump
494 // and makes it easier to browse.
495 HeapDumper dumper(!_all.value() /* request GC if _all is false*/);
496 int res = dumper.dump(_filename.value());
497 if (res == 0) {
498 output()->print_cr("Heap dump file created");
499 } else {
500 // heap dump failed
501 ResourceMark rm;
502 char* error = dumper.error_as_C_string();
503 if (error == NULL) {
504 output()->print_cr("Dump failed - reason unknown");
505 } else {
506 output()->print_cr("%s", error);
507 }
508 }
509 }
510
511 int HeapDumpDCmd::num_arguments() {
512 ResourceMark rm;
513 HeapDumpDCmd* dcmd = new HeapDumpDCmd(NULL, false);
514 if (dcmd != NULL) {
515 DCmdMark mark(dcmd);
516 return dcmd->_dcmdparser.num_arguments();
517 } else {
518 return 0;
519 }
520 }
521
522 ClassHistogramDCmd::ClassHistogramDCmd(outputStream* output, bool heap) :
523 DCmdWithParser(output, heap),
524 _all("-all", "Inspect all objects, including unreachable objects",
525 "BOOLEAN", false, "false") {
526 _dcmdparser.add_dcmd_option(&_all);
527 }
528
529 void ClassHistogramDCmd::execute(DCmdSource source, TRAPS) {
530 VM_GC_HeapInspection heapop(output(),
531 !_all.value() /* request full gc if false */);
532 VMThread::execute(&heapop);
533 }
534
535 int ClassHistogramDCmd::num_arguments() {
536 ResourceMark rm;
537 ClassHistogramDCmd* dcmd = new ClassHistogramDCmd(NULL, false);
538 if (dcmd != NULL) {
539 DCmdMark mark(dcmd);
540 return dcmd->_dcmdparser.num_arguments();
541 } else {
542 return 0;
543 }
544 }
545
546 #define DEFAULT_COLUMNS "InstBytes,KlassBytes,CpAll,annotations,MethodCount,Bytecodes,MethodAll,ROAll,RWAll,Total"
547 ClassStatsDCmd::ClassStatsDCmd(outputStream* output, bool heap) :
548 DCmdWithParser(output, heap),
549 _csv("-csv", "Print in CSV (comma-separated values) format for spreadsheets",
550 "BOOLEAN", false, "false"),
551 _all("-all", "Show all columns",
552 "BOOLEAN", false, "false"),
553 _help("-help", "Show meaning of all the columns",
554 "BOOLEAN", false, "false"),
555 _columns("columns", "Comma-separated list of all the columns to show. "
556 "If not specified, the following columns are shown: " DEFAULT_COLUMNS,
557 "STRING", false) {
558 _dcmdparser.add_dcmd_option(&_all);
559 _dcmdparser.add_dcmd_option(&_csv);
560 _dcmdparser.add_dcmd_option(&_help);
561 _dcmdparser.add_dcmd_argument(&_columns);
562 }
563
564 void ClassStatsDCmd::execute(DCmdSource source, TRAPS) {
565 VM_GC_HeapInspection heapop(output(),
566 true /* request_full_gc */);
567 heapop.set_csv_format(_csv.value());
568 heapop.set_print_help(_help.value());
569 heapop.set_print_class_stats(true);
570 if (_all.value()) {
571 if (_columns.has_value()) {
572 output()->print_cr("Cannot specify -all and individual columns at the same time");
573 return;
574 } else {
575 heapop.set_columns(NULL);
576 }
577 } else {
578 if (_columns.has_value()) {
579 heapop.set_columns(_columns.value());
580 } else {
581 heapop.set_columns(DEFAULT_COLUMNS);
582 }
583 }
584 VMThread::execute(&heapop);
585 }
586
587 int ClassStatsDCmd::num_arguments() {
588 ResourceMark rm;
589 ClassStatsDCmd* dcmd = new ClassStatsDCmd(NULL, false);
590 if (dcmd != NULL) {
591 DCmdMark mark(dcmd);
592 return dcmd->_dcmdparser.num_arguments();
593 } else {
594 return 0;
595 }
596 }
597 #endif // INCLUDE_SERVICES
598
599 ThreadDumpDCmd::ThreadDumpDCmd(outputStream* output, bool heap) :
600 DCmdWithParser(output, heap),
601 _locks("-l", "print java.util.concurrent locks", "BOOLEAN", false, "false") {
602 _dcmdparser.add_dcmd_option(&_locks);
603 }
604
605 void ThreadDumpDCmd::execute(DCmdSource source, TRAPS) {
606 // thread stacks
607 VM_PrintThreads op1(output(), _locks.value());
608 VMThread::execute(&op1);
609
610 // JNI global handles
611 VM_PrintJNI op2(output());
612 VMThread::execute(&op2);
613
614 // Deadlock detection
615 VM_FindDeadlocks op3(output());
616 VMThread::execute(&op3);
617 }
618
619 int ThreadDumpDCmd::num_arguments() {
620 ResourceMark rm;
621 ThreadDumpDCmd* dcmd = new ThreadDumpDCmd(NULL, false);
622 if (dcmd != NULL) {
623 DCmdMark mark(dcmd);
624 return dcmd->_dcmdparser.num_arguments();
625 } else {
626 return 0;
627 }
628 }
629
630 // Enhanced JMX Agent support
631
632 JMXStartRemoteDCmd::JMXStartRemoteDCmd(outputStream *output, bool heap_allocated) :
633
634 DCmdWithParser(output, heap_allocated),
635
636 _config_file
637 ("config.file",
638 "set com.sun.management.config.file", "STRING", false),
639
640 _jmxremote_host
641 ("jmxremote.host",
642 "set com.sun.management.jmxremote.host", "STRING", false),
643
644 _jmxremote_port
645 ("jmxremote.port",
646 "set com.sun.management.jmxremote.port", "STRING", false),
647
648 _jmxremote_rmi_port
649 ("jmxremote.rmi.port",
650 "set com.sun.management.jmxremote.rmi.port", "STRING", false),
651
652 _jmxremote_ssl
653 ("jmxremote.ssl",
654 "set com.sun.management.jmxremote.ssl", "STRING", false),
655
656 _jmxremote_registry_ssl
657 ("jmxremote.registry.ssl",
658 "set com.sun.management.jmxremote.registry.ssl", "STRING", false),
659
660 _jmxremote_authenticate
661 ("jmxremote.authenticate",
662 "set com.sun.management.jmxremote.authenticate", "STRING", false),
663
664 _jmxremote_password_file
665 ("jmxremote.password.file",
666 "set com.sun.management.jmxremote.password.file", "STRING", false),
667
668 _jmxremote_access_file
669 ("jmxremote.access.file",
670 "set com.sun.management.jmxremote.access.file", "STRING", false),
671
672 _jmxremote_login_config
673 ("jmxremote.login.config",
674 "set com.sun.management.jmxremote.login.config", "STRING", false),
675
676 _jmxremote_ssl_enabled_cipher_suites
677 ("jmxremote.ssl.enabled.cipher.suites",
678 "set com.sun.management.jmxremote.ssl.enabled.cipher.suite", "STRING", false),
679
680 _jmxremote_ssl_enabled_protocols
681 ("jmxremote.ssl.enabled.protocols",
682 "set com.sun.management.jmxremote.ssl.enabled.protocols", "STRING", false),
683
684 _jmxremote_ssl_need_client_auth
685 ("jmxremote.ssl.need.client.auth",
686 "set com.sun.management.jmxremote.need.client.auth", "STRING", false),
687
688 _jmxremote_ssl_config_file
689 ("jmxremote.ssl.config.file",
690 "set com.sun.management.jmxremote.ssl_config_file", "STRING", false),
691
692 // JDP Protocol support
693 _jmxremote_autodiscovery
694 ("jmxremote.autodiscovery",
695 "set com.sun.management.jmxremote.autodiscovery", "STRING", false),
696
697 _jdp_port
698 ("jdp.port",
699 "set com.sun.management.jdp.port", "INT", false),
700
701 _jdp_address
702 ("jdp.address",
703 "set com.sun.management.jdp.address", "STRING", false),
704
705 _jdp_source_addr
706 ("jdp.source_addr",
707 "set com.sun.management.jdp.source_addr", "STRING", false),
708
709 _jdp_ttl
710 ("jdp.ttl",
711 "set com.sun.management.jdp.ttl", "INT", false),
712
713 _jdp_pause
714 ("jdp.pause",
715 "set com.sun.management.jdp.pause", "INT", false),
716
717 _jdp_name
718 ("jdp.name",
719 "set com.sun.management.jdp.name", "STRING", false)
720
721 {
722 _dcmdparser.add_dcmd_option(&_config_file);
723 _dcmdparser.add_dcmd_option(&_jmxremote_host);
724 _dcmdparser.add_dcmd_option(&_jmxremote_port);
725 _dcmdparser.add_dcmd_option(&_jmxremote_rmi_port);
726 _dcmdparser.add_dcmd_option(&_jmxremote_ssl);
727 _dcmdparser.add_dcmd_option(&_jmxremote_registry_ssl);
728 _dcmdparser.add_dcmd_option(&_jmxremote_authenticate);
729 _dcmdparser.add_dcmd_option(&_jmxremote_password_file);
730 _dcmdparser.add_dcmd_option(&_jmxremote_access_file);
731 _dcmdparser.add_dcmd_option(&_jmxremote_login_config);
732 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_cipher_suites);
733 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_protocols);
734 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_need_client_auth);
735 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_config_file);
736 _dcmdparser.add_dcmd_option(&_jmxremote_autodiscovery);
737 _dcmdparser.add_dcmd_option(&_jdp_port);
738 _dcmdparser.add_dcmd_option(&_jdp_address);
739 _dcmdparser.add_dcmd_option(&_jdp_source_addr);
740 _dcmdparser.add_dcmd_option(&_jdp_ttl);
741 _dcmdparser.add_dcmd_option(&_jdp_pause);
742 _dcmdparser.add_dcmd_option(&_jdp_name);
743 }
744
745
746 int JMXStartRemoteDCmd::num_arguments() {
747 ResourceMark rm;
748 JMXStartRemoteDCmd* dcmd = new JMXStartRemoteDCmd(NULL, false);
749 if (dcmd != NULL) {
750 DCmdMark mark(dcmd);
751 return dcmd->_dcmdparser.num_arguments();
752 } else {
753 return 0;
754 }
755 }
756
757
758 void JMXStartRemoteDCmd::execute(DCmdSource source, TRAPS) {
759 ResourceMark rm(THREAD);
760 HandleMark hm(THREAD);
761
762 // Load and initialize the jdk.internal.agent.Agent class
763 // invoke startRemoteManagementAgent(string) method to start
764 // the remote management server.
765 // throw java.lang.NoSuchMethodError if the method doesn't exist
766
767 loadAgentModule(CHECK);
768 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
769 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK);
770
771 JavaValue result(T_VOID);
772
773 // Pass all command line arguments to java as key=value,...
774 // All checks are done on java side
775
776 int len = 0;
777 stringStream options;
778 char comma[2] = {0,0};
779
780 // Leave default values on Agent.class side and pass only
781 // agruments explicitly set by user. All arguments passed
782 // to jcmd override properties with the same name set by
783 // command line with -D or by managmenent.properties
784 // file.
785 #define PUT_OPTION(a) \
786 do { \
787 if ( (a).is_set() ){ \
788 if ( *((a).type()) == 'I' ) { \
789 options.print("%scom.sun.management.%s=" JLONG_FORMAT, comma, (a).name(), (jlong)((a).value())); \
790 } else { \
791 options.print("%scom.sun.management.%s=%s", comma, (a).name(), (char*)((a).value())); \
792 } \
793 comma[0] = ','; \
794 }\
795 } while(0);
796
797
798 PUT_OPTION(_config_file);
799 PUT_OPTION(_jmxremote_host);
800 PUT_OPTION(_jmxremote_port);
801 PUT_OPTION(_jmxremote_rmi_port);
802 PUT_OPTION(_jmxremote_ssl);
803 PUT_OPTION(_jmxremote_registry_ssl);
804 PUT_OPTION(_jmxremote_authenticate);
805 PUT_OPTION(_jmxremote_password_file);
806 PUT_OPTION(_jmxremote_access_file);
807 PUT_OPTION(_jmxremote_login_config);
808 PUT_OPTION(_jmxremote_ssl_enabled_cipher_suites);
809 PUT_OPTION(_jmxremote_ssl_enabled_protocols);
810 PUT_OPTION(_jmxremote_ssl_need_client_auth);
811 PUT_OPTION(_jmxremote_ssl_config_file);
812 PUT_OPTION(_jmxremote_autodiscovery);
813 PUT_OPTION(_jdp_port);
814 PUT_OPTION(_jdp_address);
815 PUT_OPTION(_jdp_source_addr);
816 PUT_OPTION(_jdp_ttl);
817 PUT_OPTION(_jdp_pause);
818 PUT_OPTION(_jdp_name);
819
820 #undef PUT_OPTION
821
822 Handle str = java_lang_String::create_from_str(options.as_string(), CHECK);
823 JavaCalls::call_static(&result, k, vmSymbols::startRemoteAgent_name(), vmSymbols::string_void_signature(), str, CHECK);
824 }
825
826 JMXStartLocalDCmd::JMXStartLocalDCmd(outputStream *output, bool heap_allocated) :
827 DCmd(output, heap_allocated) {
828 // do nothing
829 }
830
831 void JMXStartLocalDCmd::execute(DCmdSource source, TRAPS) {
832 ResourceMark rm(THREAD);
833 HandleMark hm(THREAD);
834
835 // Load and initialize the jdk.internal.agent.Agent class
836 // invoke startLocalManagementAgent(void) method to start
837 // the local management server
838 // throw java.lang.NoSuchMethodError if method doesn't exist
839
840 loadAgentModule(CHECK);
841 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
842 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK);
843
844 JavaValue result(T_VOID);
845 JavaCalls::call_static(&result, k, vmSymbols::startLocalAgent_name(), vmSymbols::void_method_signature(), CHECK);
846 }
847
848 void JMXStopRemoteDCmd::execute(DCmdSource source, TRAPS) {
849 ResourceMark rm(THREAD);
850 HandleMark hm(THREAD);
851
852 // Load and initialize the jdk.internal.agent.Agent class
853 // invoke stopRemoteManagementAgent method to stop the
854 // management server
855 // throw java.lang.NoSuchMethodError if method doesn't exist
856
857 loadAgentModule(CHECK);
858 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
859 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK);
860
861 JavaValue result(T_VOID);
862 JavaCalls::call_static(&result, k, vmSymbols::stopRemoteAgent_name(), vmSymbols::void_method_signature(), CHECK);
863 }
864
865 JMXStatusDCmd::JMXStatusDCmd(outputStream *output, bool heap_allocated) :
866 DCmd(output, heap_allocated) {
867 // do nothing
868 }
869
870 void JMXStatusDCmd::execute(DCmdSource source, TRAPS) {
871 ResourceMark rm(THREAD);
872 HandleMark hm(THREAD);
873
874 // Load and initialize the jdk.internal.agent.Agent class
875 // invoke getManagementAgentStatus() method to generate the status info
876 // throw java.lang.NoSuchMethodError if method doesn't exist
877
878 loadAgentModule(CHECK);
879 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
880 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK);
881
882 JavaValue result(T_OBJECT);
883 JavaCalls::call_static(&result, k, vmSymbols::getAgentStatus_name(), vmSymbols::void_string_signature(), CHECK);
884
885 jvalue* jv = (jvalue*) result.get_value_addr();
886 oop str = (oop) jv->l;
887 if (str != NULL) {
888 char* out = java_lang_String::as_utf8_string(str);
889 if (out) {
890 output()->print_cr("%s", out);
891 return;
892 }
893 }
894 output()->print_cr("Error obtaining management agent status");
895 }
896
897 VMDynamicLibrariesDCmd::VMDynamicLibrariesDCmd(outputStream *output, bool heap_allocated) :
898 DCmd(output, heap_allocated) {
899 // do nothing
900 }
901
902 void VMDynamicLibrariesDCmd::execute(DCmdSource source, TRAPS) {
903 os::print_dll_info(output());
904 output()->cr();
905 }
906
907 void CompileQueueDCmd::execute(DCmdSource source, TRAPS) {
908 VM_PrintCompileQueue printCompileQueueOp(output());
909 VMThread::execute(&printCompileQueueOp);
910 }
911
912 void CodeListDCmd::execute(DCmdSource source, TRAPS) {
913 CodeCache::print_codelist(output());
914 }
915
916 void CodeCacheDCmd::execute(DCmdSource source, TRAPS) {
917 CodeCache::print_layout(output());
918 }
919
920 void CompilerDirectivesPrintDCmd::execute(DCmdSource source, TRAPS) {
921 DirectivesStack::print(output());
922 }
923
924 CompilerDirectivesAddDCmd::CompilerDirectivesAddDCmd(outputStream* output, bool heap) :
925 DCmdWithParser(output, heap),
926 _filename("filename","Name of the directives file", "STRING",true) {
927 _dcmdparser.add_dcmd_argument(&_filename);
928 }
929
930 void CompilerDirectivesAddDCmd::execute(DCmdSource source, TRAPS) {
931 DirectivesParser::parse_from_file(_filename.value(), output());
932 }
933
934 int CompilerDirectivesAddDCmd::num_arguments() {
935 ResourceMark rm;
936 CompilerDirectivesAddDCmd* dcmd = new CompilerDirectivesAddDCmd(NULL, false);
937 if (dcmd != NULL) {
938 DCmdMark mark(dcmd);
939 return dcmd->_dcmdparser.num_arguments();
940 } else {
941 return 0;
942 }
943 }
944
945 void CompilerDirectivesRemoveDCmd::execute(DCmdSource source, TRAPS) {
946 DirectivesStack::pop(1);
947 }
948
949 void CompilerDirectivesClearDCmd::execute(DCmdSource source, TRAPS) {
950 DirectivesStack::clear();
951 }
952 #if INCLUDE_SERVICES
953 ClassHierarchyDCmd::ClassHierarchyDCmd(outputStream* output, bool heap) :
954 DCmdWithParser(output, heap),
955 _print_interfaces("-i", "Inherited interfaces should be printed.", "BOOLEAN", false, "false"),
956 _print_subclasses("-s", "If a classname is specified, print its subclasses. "
957 "Otherwise only its superclasses are printed.", "BOOLEAN", false, "false"),
958 _classname("classname", "Name of class whose hierarchy should be printed. "
959 "If not specified, all class hierarchies are printed.",
960 "STRING", false) {
961 _dcmdparser.add_dcmd_option(&_print_interfaces);
962 _dcmdparser.add_dcmd_option(&_print_subclasses);
963 _dcmdparser.add_dcmd_argument(&_classname);
964 }
965
966 void ClassHierarchyDCmd::execute(DCmdSource source, TRAPS) {
967 VM_PrintClassHierarchy printClassHierarchyOp(output(), _print_interfaces.value(),
968 _print_subclasses.value(), _classname.value());
969 VMThread::execute(&printClassHierarchyOp);
970 }
971
972 int ClassHierarchyDCmd::num_arguments() {
973 ResourceMark rm;
974 ClassHierarchyDCmd* dcmd = new ClassHierarchyDCmd(NULL, false);
975 if (dcmd != NULL) {
976 DCmdMark mark(dcmd);
977 return dcmd->_dcmdparser.num_arguments();
978 } else {
979 return 0;
980 }
981 }
982
983 #endif
984
985 class VM_DumpTouchedMethods : public VM_Operation {
986 private:
987 outputStream* _out;
988 public:
989 VM_DumpTouchedMethods(outputStream* out) {
990 _out = out;
991 }
992
993 virtual VMOp_Type type() const { return VMOp_DumpTouchedMethods; }
994
995 virtual void doit() {
996 Method::print_touched_methods(_out);
997 }
998 };
999
1000 TouchedMethodsDCmd::TouchedMethodsDCmd(outputStream* output, bool heap) :
1001 DCmdWithParser(output, heap)
1002 {}
1003
1004 void TouchedMethodsDCmd::execute(DCmdSource source, TRAPS) {
1005 if (!LogTouchedMethods) {
1006 output()->print_cr("VM.print_touched_methods command requires -XX:+LogTouchedMethods");
1007 return;
1008 }
1009 VM_DumpTouchedMethods dumper(output());
1010 VMThread::execute(&dumper);
1011 }
1012
1013 int TouchedMethodsDCmd::num_arguments() {
1014 return 0;
1015 }