1 /*
2 * Copyright (c) 2011, 2018, 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 "jvm.h"
27 #include "classfile/classLoaderStats.hpp"
28 #include "classfile/compactHashtable.hpp"
29 #include "compiler/compileBroker.hpp"
30 #include "compiler/directivesParser.hpp"
31 #include "gc/shared/vmGCOperations.hpp"
32 #include "memory/resourceArea.hpp"
33 #include "oops/objArrayOop.inline.hpp"
34 #include "oops/oop.inline.hpp"
35 #include "oops/typeArrayOop.inline.hpp"
36 #include "runtime/flags/jvmFlag.hpp"
37 #include "runtime/handles.inline.hpp"
38 #include "runtime/javaCalls.hpp"
39 #include "runtime/os.hpp"
40 #include "services/diagnosticArgument.hpp"
41 #include "services/diagnosticCommand.hpp"
42 #include "services/diagnosticFramework.hpp"
43 #include "services/heapDumper.hpp"
44 #include "services/management.hpp"
45 #include "services/writeableFlags.hpp"
46 #include "utilities/debug.hpp"
47 #include "utilities/formatBuffer.hpp"
48 #include "utilities/macros.hpp"
49
50
51 static void loadAgentModule(TRAPS) {
52 ResourceMark rm(THREAD);
53 HandleMark hm(THREAD);
54
55 JavaValue result(T_OBJECT);
56 Handle h_module_name = java_lang_String::create_from_str("jdk.management.agent", CHECK);
57 JavaCalls::call_static(&result,
58 SystemDictionary::module_Modules_klass(),
59 vmSymbols::loadModule_name(),
60 vmSymbols::loadModule_signature(),
61 h_module_name,
62 THREAD);
63 }
64
65 void DCmdRegistrant::register_dcmds(){
66 // Registration of the diagnostic commands
67 // First argument specifies which interfaces will export the command
68 // Second argument specifies if the command is enabled
69 // Third argument specifies if the command is hidden
70 uint32_t full_export = DCmd_Source_Internal | DCmd_Source_AttachAPI
71 | DCmd_Source_MBean;
72 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HelpDCmd>(full_export, true, false));
73 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VersionDCmd>(full_export, true, false));
74 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CommandLineDCmd>(full_export, true, false));
75 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintSystemPropertiesDCmd>(full_export, true, false));
76 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintVMFlagsDCmd>(full_export, true, false));
77 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SetVMFlagDCmd>(full_export, true, false));
78 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMDynamicLibrariesDCmd>(full_export, true, false));
79 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMUptimeDCmd>(full_export, true, false));
80 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMInfoDCmd>(full_export, true, false));
81 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SystemGCDCmd>(full_export, true, false));
82 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<RunFinalizationDCmd>(full_export, true, false));
83 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapInfoDCmd>(full_export, true, false));
84 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<FinalizerInfoDCmd>(full_export, true, false));
85 #if INCLUDE_SERVICES
86 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapDumpDCmd>(DCmd_Source_Internal | DCmd_Source_AttachAPI, true, false));
87 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHistogramDCmd>(full_export, true, false));
88 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassStatsDCmd>(full_export, true, false));
89 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SystemDictionaryDCmd>(full_export, true, false));
90 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHierarchyDCmd>(full_export, true, false));
91 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SymboltableDCmd>(full_export, true, false));
92 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<StringtableDCmd>(full_export, true, false));
93 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<MetaspaceDCmd>(full_export, true, false));
94 #if INCLUDE_JVMTI // Both JVMTI and SERVICES have to be enabled to have this dcmd
95 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JVMTIAgentLoadDCmd>(full_export, true, false));
96 #endif // INCLUDE_JVMTI
97 #endif // INCLUDE_SERVICES
98 #if INCLUDE_JVMTI
99 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JVMTIDataDumpDCmd>(full_export, true, false));
100 #endif // INCLUDE_JVMTI
101 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ThreadDumpDCmd>(full_export, true, false));
102 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassLoaderStatsDCmd>(full_export, true, false));
103 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompileQueueDCmd>(full_export, true, false));
104 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeListDCmd>(full_export, true, false));
105 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeCacheDCmd>(full_export, true, false));
106 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<TouchedMethodsDCmd>(full_export, true, false));
107 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeHeapAnalyticsDCmd>(full_export, true, false));
108
109 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesPrintDCmd>(full_export, true, false));
110 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesAddDCmd>(full_export, true, false));
111 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesRemoveDCmd>(full_export, true, false));
112 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesClearDCmd>(full_export, true, false));
113
114 // Enhanced JMX Agent Support
115 // These commands won't be exported via the DiagnosticCommandMBean until an
116 // appropriate permission is created for them
117 uint32_t jmx_agent_export_flags = DCmd_Source_Internal | DCmd_Source_AttachAPI;
118 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartRemoteDCmd>(jmx_agent_export_flags, true,false));
119 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartLocalDCmd>(jmx_agent_export_flags, true,false));
120 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStopRemoteDCmd>(jmx_agent_export_flags, true,false));
121 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStatusDCmd>(jmx_agent_export_flags, true,false));
122
123 }
124
125 #ifndef HAVE_EXTRA_DCMD
126 void DCmdRegistrant::register_dcmds_ext(){
127 // Do nothing here
128 }
129 #endif
130
131
132 HelpDCmd::HelpDCmd(outputStream* output, bool heap) : DCmdWithParser(output, heap),
133 _all("-all", "Show help for all commands", "BOOLEAN", false, "false"),
134 _cmd("command name", "The name of the command for which we want help",
135 "STRING", false) {
136 _dcmdparser.add_dcmd_option(&_all);
137 _dcmdparser.add_dcmd_argument(&_cmd);
138 };
139
140
141 static int compare_strings(const char** s1, const char** s2) {
142 return ::strcmp(*s1, *s2);
143 }
144
145 void HelpDCmd::execute(DCmdSource source, TRAPS) {
146 if (_all.value()) {
147 GrowableArray<const char*>* cmd_list = DCmdFactory::DCmd_list(source);
148 cmd_list->sort(compare_strings);
149 for (int i = 0; i < cmd_list->length(); i++) {
150 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i),
151 strlen(cmd_list->at(i)));
152 output()->print_cr("%s%s", factory->name(),
153 factory->is_enabled() ? "" : " [disabled]");
154 output()->print_cr("\t%s", factory->description());
155 output()->cr();
156 factory = factory->next();
157 }
158 } else if (_cmd.has_value()) {
159 DCmd* cmd = NULL;
160 DCmdFactory* factory = DCmdFactory::factory(source, _cmd.value(),
161 strlen(_cmd.value()));
162 if (factory != NULL) {
163 output()->print_cr("%s%s", factory->name(),
164 factory->is_enabled() ? "" : " [disabled]");
165 output()->print_cr("%s", factory->description());
166 output()->print_cr("\nImpact: %s", factory->impact());
167 JavaPermission p = factory->permission();
168 if(p._class != NULL) {
169 if(p._action != NULL) {
170 output()->print_cr("\nPermission: %s(%s, %s)",
171 p._class, p._name == NULL ? "null" : p._name, p._action);
172 } else {
173 output()->print_cr("\nPermission: %s(%s)",
174 p._class, p._name == NULL ? "null" : p._name);
175 }
176 }
177 output()->cr();
178 cmd = factory->create_resource_instance(output());
179 if (cmd != NULL) {
180 DCmdMark mark(cmd);
181 cmd->print_help(factory->name());
182 }
183 } else {
184 output()->print_cr("Help unavailable : '%s' : No such command", _cmd.value());
185 }
186 } else {
187 output()->print_cr("The following commands are available:");
188 GrowableArray<const char *>* cmd_list = DCmdFactory::DCmd_list(source);
189 cmd_list->sort(compare_strings);
190 for (int i = 0; i < cmd_list->length(); i++) {
191 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i),
192 strlen(cmd_list->at(i)));
193 output()->print_cr("%s%s", factory->name(),
194 factory->is_enabled() ? "" : " [disabled]");
195 factory = factory->_next;
196 }
197 output()->print_cr("\nFor more information about a specific command use 'help <command>'.");
198 }
199 }
200
201 int HelpDCmd::num_arguments() {
202 ResourceMark rm;
203 HelpDCmd* dcmd = new HelpDCmd(NULL, false);
204 if (dcmd != NULL) {
205 DCmdMark mark(dcmd);
206 return dcmd->_dcmdparser.num_arguments();
207 } else {
208 return 0;
209 }
210 }
211
212 void VersionDCmd::execute(DCmdSource source, TRAPS) {
213 output()->print_cr("%s version %s", Abstract_VM_Version::vm_name(),
214 Abstract_VM_Version::vm_release());
215 JDK_Version jdk_version = JDK_Version::current();
216 if (jdk_version.patch_version() > 0) {
217 output()->print_cr("JDK %d.%d.%d.%d", jdk_version.major_version(),
218 jdk_version.minor_version(), jdk_version.security_version(),
219 jdk_version.patch_version());
220 } else {
221 output()->print_cr("JDK %d.%d.%d", jdk_version.major_version(),
222 jdk_version.minor_version(), jdk_version.security_version());
223 }
224 }
225
226 PrintVMFlagsDCmd::PrintVMFlagsDCmd(outputStream* output, bool heap) :
227 DCmdWithParser(output, heap),
228 _all("-all", "Print all flags supported by the VM", "BOOLEAN", false, "false") {
229 _dcmdparser.add_dcmd_option(&_all);
230 }
231
232 void PrintVMFlagsDCmd::execute(DCmdSource source, TRAPS) {
233 if (_all.value()) {
234 JVMFlag::printFlags(output(), true);
235 } else {
236 JVMFlag::printSetFlags(output());
237 }
238 }
239
240 int PrintVMFlagsDCmd::num_arguments() {
241 ResourceMark rm;
242 PrintVMFlagsDCmd* dcmd = new PrintVMFlagsDCmd(NULL, false);
243 if (dcmd != NULL) {
244 DCmdMark mark(dcmd);
245 return dcmd->_dcmdparser.num_arguments();
246 } else {
247 return 0;
248 }
249 }
250
251 SetVMFlagDCmd::SetVMFlagDCmd(outputStream* output, bool heap) :
252 DCmdWithParser(output, heap),
253 _flag("flag name", "The name of the flag we want to set",
254 "STRING", true),
255 _value("string value", "The value we want to set", "STRING", false) {
256 _dcmdparser.add_dcmd_argument(&_flag);
257 _dcmdparser.add_dcmd_argument(&_value);
258 }
259
260 void SetVMFlagDCmd::execute(DCmdSource source, TRAPS) {
261 const char* val = NULL;
262 if (_value.value() != NULL) {
263 val = _value.value();
264 }
265
266 FormatBuffer<80> err_msg("%s", "");
267 int ret = WriteableFlags::set_flag(_flag.value(), val, JVMFlag::MANAGEMENT, err_msg);
268
269 if (ret != JVMFlag::SUCCESS) {
270 output()->print_cr("%s", err_msg.buffer());
271 }
272 }
273
274 int SetVMFlagDCmd::num_arguments() {
275 ResourceMark rm;
276 SetVMFlagDCmd* dcmd = new SetVMFlagDCmd(NULL, false);
277 if (dcmd != NULL) {
278 DCmdMark mark(dcmd);
279 return dcmd->_dcmdparser.num_arguments();
280 } else {
281 return 0;
282 }
283 }
284
285 void JVMTIDataDumpDCmd::execute(DCmdSource source, TRAPS) {
286 if (JvmtiExport::should_post_data_dump()) {
287 JvmtiExport::post_data_dump();
288 }
289 }
290
291 #if INCLUDE_SERVICES
292 JVMTIAgentLoadDCmd::JVMTIAgentLoadDCmd(outputStream* output, bool heap) :
293 DCmdWithParser(output, heap),
294 _libpath("library path", "Absolute path of the JVMTI agent to load.",
295 "STRING", true),
296 _option("agent option", "Option string to pass the agent.", "STRING", false) {
297 _dcmdparser.add_dcmd_argument(&_libpath);
298 _dcmdparser.add_dcmd_argument(&_option);
299 }
300
301 void JVMTIAgentLoadDCmd::execute(DCmdSource source, TRAPS) {
302
303 if (_libpath.value() == NULL) {
304 output()->print_cr("JVMTI.agent_load dcmd needs library path.");
305 return;
306 }
307
308 char *suffix = strrchr(_libpath.value(), '.');
309 bool is_java_agent = (suffix != NULL) && (strncmp(".jar", suffix, 4) == 0);
310
311 if (is_java_agent) {
312 if (_option.value() == NULL) {
313 JvmtiExport::load_agent_library("instrument", "false",
314 _libpath.value(), output());
315 } else {
316 size_t opt_len = strlen(_libpath.value()) + strlen(_option.value()) + 2;
317 if (opt_len > 4096) {
318 output()->print_cr("JVMTI agent attach failed: Options is too long.");
319 return;
320 }
321
322 char *opt = (char *)os::malloc(opt_len, mtInternal);
323 if (opt == NULL) {
324 output()->print_cr("JVMTI agent attach failed: "
325 "Could not allocate " SIZE_FORMAT " bytes for argument.",
326 opt_len);
327 return;
328 }
329
330 jio_snprintf(opt, opt_len, "%s=%s", _libpath.value(), _option.value());
331 JvmtiExport::load_agent_library("instrument", "false", opt, output());
332
333 os::free(opt);
334 }
335 } else {
336 JvmtiExport::load_agent_library(_libpath.value(), "true",
337 _option.value(), output());
338 }
339 }
340
341 int JVMTIAgentLoadDCmd::num_arguments() {
342 ResourceMark rm;
343 JVMTIAgentLoadDCmd* dcmd = new JVMTIAgentLoadDCmd(NULL, false);
344 if (dcmd != NULL) {
345 DCmdMark mark(dcmd);
346 return dcmd->_dcmdparser.num_arguments();
347 } else {
348 return 0;
349 }
350 }
351 #endif // INCLUDE_SERVICES
352
353 void PrintSystemPropertiesDCmd::execute(DCmdSource source, TRAPS) {
354 // load VMSupport
355 Symbol* klass = vmSymbols::jdk_internal_vm_VMSupport();
356 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK);
357 InstanceKlass* ik = InstanceKlass::cast(k);
358 if (ik->should_be_initialized()) {
359 ik->initialize(THREAD);
360 }
361 if (HAS_PENDING_EXCEPTION) {
362 java_lang_Throwable::print(PENDING_EXCEPTION, output());
363 output()->cr();
364 CLEAR_PENDING_EXCEPTION;
365 return;
366 }
367
368 // invoke the serializePropertiesToByteArray method
369 JavaValue result(T_OBJECT);
370 JavaCallArguments args;
371
372 Symbol* signature = vmSymbols::serializePropertiesToByteArray_signature();
373 JavaCalls::call_static(&result,
374 ik,
375 vmSymbols::serializePropertiesToByteArray_name(),
376 signature,
377 &args,
378 THREAD);
379 if (HAS_PENDING_EXCEPTION) {
380 java_lang_Throwable::print(PENDING_EXCEPTION, output());
381 output()->cr();
382 CLEAR_PENDING_EXCEPTION;
383 return;
384 }
385
386 // The result should be a [B
387 oop res = (oop)result.get_jobject();
388 assert(res->is_typeArray(), "just checking");
389 assert(TypeArrayKlass::cast(res->klass())->element_type() == T_BYTE, "just checking");
390
391 // copy the bytes to the output stream
392 typeArrayOop ba = typeArrayOop(res);
393 jbyte* addr = typeArrayOop(res)->byte_at_addr(0);
394 output()->print_raw((const char*)addr, ba->length());
395 }
396
397 VMUptimeDCmd::VMUptimeDCmd(outputStream* output, bool heap) :
398 DCmdWithParser(output, heap),
399 _date("-date", "Add a prefix with current date", "BOOLEAN", false, "false") {
400 _dcmdparser.add_dcmd_option(&_date);
401 }
402
403 void VMUptimeDCmd::execute(DCmdSource source, TRAPS) {
404 if (_date.value()) {
405 output()->date_stamp(true, "", ": ");
406 }
407 output()->time_stamp().update_to(tty->time_stamp().ticks());
408 output()->stamp();
409 output()->print_cr(" s");
410 }
411
412 int VMUptimeDCmd::num_arguments() {
413 ResourceMark rm;
414 VMUptimeDCmd* dcmd = new VMUptimeDCmd(NULL, false);
415 if (dcmd != NULL) {
416 DCmdMark mark(dcmd);
417 return dcmd->_dcmdparser.num_arguments();
418 } else {
419 return 0;
420 }
421 }
422
423 void VMInfoDCmd::execute(DCmdSource source, TRAPS) {
424 VMError::print_vm_info(_output);
425 }
426
427 void SystemGCDCmd::execute(DCmdSource source, TRAPS) {
428 Universe::heap()->collect(GCCause::_dcmd_gc_run);
429 }
430
431 void RunFinalizationDCmd::execute(DCmdSource source, TRAPS) {
432 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_System(),
433 true, CHECK);
434 JavaValue result(T_VOID);
435 JavaCalls::call_static(&result, k,
436 vmSymbols::run_finalization_name(),
437 vmSymbols::void_method_signature(), CHECK);
438 }
439
440 void HeapInfoDCmd::execute(DCmdSource source, TRAPS) {
441 MutexLocker hl(Heap_lock);
442 Universe::heap()->print_on(output());
443 }
444
445 void FinalizerInfoDCmd::execute(DCmdSource source, TRAPS) {
446 ResourceMark rm;
447
448 Klass* k = SystemDictionary::resolve_or_fail(
449 vmSymbols::finalizer_histogram_klass(), true, CHECK);
450
451 JavaValue result(T_ARRAY);
452
453 // We are calling lang.ref.FinalizerHistogram.getFinalizerHistogram() method
454 // and expect it to return array of FinalizerHistogramEntry as Object[]
455
456 JavaCalls::call_static(&result, k,
457 vmSymbols::get_finalizer_histogram_name(),
458 vmSymbols::void_finalizer_histogram_entry_array_signature(), CHECK);
459
460 objArrayOop result_oop = (objArrayOop) result.get_jobject();
461 if (result_oop->length() == 0) {
462 output()->print_cr("No instances waiting for finalization found");
463 return;
464 }
465
466 oop foop = result_oop->obj_at(0);
467 InstanceKlass* ik = InstanceKlass::cast(foop->klass());
468
469 fieldDescriptor count_fd, name_fd;
470
471 Klass* count_res = ik->find_field(
472 vmSymbols::finalizer_histogram_entry_count_field(), vmSymbols::int_signature(), &count_fd);
473
474 Klass* name_res = ik->find_field(
475 vmSymbols::finalizer_histogram_entry_name_field(), vmSymbols::string_signature(), &name_fd);
476
477 assert(count_res != NULL && name_res != NULL, "Unexpected layout of FinalizerHistogramEntry");
478
479 output()->print_cr("Unreachable instances waiting for finalization");
480 output()->print_cr("#instances class name");
481 output()->print_cr("-----------------------");
482
483 for (int i = 0; i < result_oop->length(); ++i) {
484 oop element_oop = result_oop->obj_at(i);
485 oop str_oop = element_oop->obj_field(name_fd.offset());
486 char *name = java_lang_String::as_utf8_string(str_oop);
487 int count = element_oop->int_field(count_fd.offset());
488 output()->print_cr("%10d %s", count, name);
489 }
490 }
491
492 #if INCLUDE_SERVICES // Heap dumping/inspection supported
493 HeapDumpDCmd::HeapDumpDCmd(outputStream* output, bool heap) :
494 DCmdWithParser(output, heap),
495 _filename("filename","Name of the dump file", "STRING",true),
496 _all("-all", "Dump all objects, including unreachable objects",
497 "BOOLEAN", false, "false") {
498 _dcmdparser.add_dcmd_option(&_all);
499 _dcmdparser.add_dcmd_argument(&_filename);
500 }
501
502 void HeapDumpDCmd::execute(DCmdSource source, TRAPS) {
503 // Request a full GC before heap dump if _all is false
504 // This helps reduces the amount of unreachable objects in the dump
505 // and makes it easier to browse.
506 HeapDumper dumper(!_all.value() /* request GC if _all is false*/);
507 int res = dumper.dump(_filename.value());
508 if (res == 0) {
509 output()->print_cr("Heap dump file created");
510 } else {
511 // heap dump failed
512 ResourceMark rm;
513 char* error = dumper.error_as_C_string();
514 if (error == NULL) {
515 output()->print_cr("Dump failed - reason unknown");
516 } else {
517 output()->print_cr("%s", error);
518 }
519 }
520 }
521
522 int HeapDumpDCmd::num_arguments() {
523 ResourceMark rm;
524 HeapDumpDCmd* dcmd = new HeapDumpDCmd(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 ClassHistogramDCmd::ClassHistogramDCmd(outputStream* output, bool heap) :
534 DCmdWithParser(output, heap),
535 _all("-all", "Inspect all objects, including unreachable objects",
536 "BOOLEAN", false, "false") {
537 _dcmdparser.add_dcmd_option(&_all);
538 }
539
540 void ClassHistogramDCmd::execute(DCmdSource source, TRAPS) {
541 VM_GC_HeapInspection heapop(output(),
542 !_all.value() /* request full gc if false */);
543 VMThread::execute(&heapop);
544 }
545
546 int ClassHistogramDCmd::num_arguments() {
547 ResourceMark rm;
548 ClassHistogramDCmd* dcmd = new ClassHistogramDCmd(NULL, false);
549 if (dcmd != NULL) {
550 DCmdMark mark(dcmd);
551 return dcmd->_dcmdparser.num_arguments();
552 } else {
553 return 0;
554 }
555 }
556
557 #define DEFAULT_COLUMNS "InstBytes,KlassBytes,CpAll,annotations,MethodCount,Bytecodes,MethodAll,ROAll,RWAll,Total"
558 ClassStatsDCmd::ClassStatsDCmd(outputStream* output, bool heap) :
559 DCmdWithParser(output, heap),
560 _csv("-csv", "Print in CSV (comma-separated values) format for spreadsheets",
561 "BOOLEAN", false, "false"),
562 _all("-all", "Show all columns",
563 "BOOLEAN", false, "false"),
564 _help("-help", "Show meaning of all the columns",
565 "BOOLEAN", false, "false"),
566 _columns("columns", "Comma-separated list of all the columns to show. "
567 "If not specified, the following columns are shown: " DEFAULT_COLUMNS,
568 "STRING", false) {
569 _dcmdparser.add_dcmd_option(&_all);
570 _dcmdparser.add_dcmd_option(&_csv);
571 _dcmdparser.add_dcmd_option(&_help);
572 _dcmdparser.add_dcmd_argument(&_columns);
573 }
574
575 void ClassStatsDCmd::execute(DCmdSource source, TRAPS) {
576 VM_GC_HeapInspection heapop(output(),
577 true /* request_full_gc */);
578 heapop.set_csv_format(_csv.value());
579 heapop.set_print_help(_help.value());
580 heapop.set_print_class_stats(true);
581 if (_all.value()) {
582 if (_columns.has_value()) {
583 output()->print_cr("Cannot specify -all and individual columns at the same time");
584 return;
585 } else {
586 heapop.set_columns(NULL);
587 }
588 } else {
589 if (_columns.has_value()) {
590 heapop.set_columns(_columns.value());
591 } else {
592 heapop.set_columns(DEFAULT_COLUMNS);
593 }
594 }
595 VMThread::execute(&heapop);
596 }
597
598 int ClassStatsDCmd::num_arguments() {
599 ResourceMark rm;
600 ClassStatsDCmd* dcmd = new ClassStatsDCmd(NULL, false);
601 if (dcmd != NULL) {
602 DCmdMark mark(dcmd);
603 return dcmd->_dcmdparser.num_arguments();
604 } else {
605 return 0;
606 }
607 }
608 #endif // INCLUDE_SERVICES
609
610 ThreadDumpDCmd::ThreadDumpDCmd(outputStream* output, bool heap) :
611 DCmdWithParser(output, heap),
612 _locks("-l", "print java.util.concurrent locks", "BOOLEAN", false, "false") {
613 _dcmdparser.add_dcmd_option(&_locks);
614 }
615
616 void ThreadDumpDCmd::execute(DCmdSource source, TRAPS) {
617 // thread stacks
618 VM_PrintThreads op1(output(), _locks.value());
619 VMThread::execute(&op1);
620
621 // JNI global handles
622 VM_PrintJNI op2(output());
623 VMThread::execute(&op2);
624
625 // Deadlock detection
626 VM_FindDeadlocks op3(output());
627 VMThread::execute(&op3);
628 }
629
630 int ThreadDumpDCmd::num_arguments() {
631 ResourceMark rm;
632 ThreadDumpDCmd* dcmd = new ThreadDumpDCmd(NULL, false);
633 if (dcmd != NULL) {
634 DCmdMark mark(dcmd);
635 return dcmd->_dcmdparser.num_arguments();
636 } else {
637 return 0;
638 }
639 }
640
641 // Enhanced JMX Agent support
642
643 JMXStartRemoteDCmd::JMXStartRemoteDCmd(outputStream *output, bool heap_allocated) :
644
645 DCmdWithParser(output, heap_allocated),
646
647 _config_file
648 ("config.file",
649 "set com.sun.management.config.file", "STRING", false),
650
651 _jmxremote_host
652 ("jmxremote.host",
653 "set com.sun.management.jmxremote.host", "STRING", false),
654
655 _jmxremote_port
656 ("jmxremote.port",
657 "set com.sun.management.jmxremote.port", "STRING", false),
658
659 _jmxremote_rmi_port
660 ("jmxremote.rmi.port",
661 "set com.sun.management.jmxremote.rmi.port", "STRING", false),
662
663 _jmxremote_ssl
664 ("jmxremote.ssl",
665 "set com.sun.management.jmxremote.ssl", "STRING", false),
666
667 _jmxremote_registry_ssl
668 ("jmxremote.registry.ssl",
669 "set com.sun.management.jmxremote.registry.ssl", "STRING", false),
670
671 _jmxremote_authenticate
672 ("jmxremote.authenticate",
673 "set com.sun.management.jmxremote.authenticate", "STRING", false),
674
675 _jmxremote_password_file
676 ("jmxremote.password.file",
677 "set com.sun.management.jmxremote.password.file", "STRING", false),
678
679 _jmxremote_access_file
680 ("jmxremote.access.file",
681 "set com.sun.management.jmxremote.access.file", "STRING", false),
682
683 _jmxremote_login_config
684 ("jmxremote.login.config",
685 "set com.sun.management.jmxremote.login.config", "STRING", false),
686
687 _jmxremote_ssl_enabled_cipher_suites
688 ("jmxremote.ssl.enabled.cipher.suites",
689 "set com.sun.management.jmxremote.ssl.enabled.cipher.suite", "STRING", false),
690
691 _jmxremote_ssl_enabled_protocols
692 ("jmxremote.ssl.enabled.protocols",
693 "set com.sun.management.jmxremote.ssl.enabled.protocols", "STRING", false),
694
695 _jmxremote_ssl_need_client_auth
696 ("jmxremote.ssl.need.client.auth",
697 "set com.sun.management.jmxremote.need.client.auth", "STRING", false),
698
699 _jmxremote_ssl_config_file
700 ("jmxremote.ssl.config.file",
701 "set com.sun.management.jmxremote.ssl_config_file", "STRING", false),
702
703 // JDP Protocol support
704 _jmxremote_autodiscovery
705 ("jmxremote.autodiscovery",
706 "set com.sun.management.jmxremote.autodiscovery", "STRING", false),
707
708 _jdp_port
709 ("jdp.port",
710 "set com.sun.management.jdp.port", "INT", false),
711
712 _jdp_address
713 ("jdp.address",
714 "set com.sun.management.jdp.address", "STRING", false),
715
716 _jdp_source_addr
717 ("jdp.source_addr",
718 "set com.sun.management.jdp.source_addr", "STRING", false),
719
720 _jdp_ttl
721 ("jdp.ttl",
722 "set com.sun.management.jdp.ttl", "INT", false),
723
724 _jdp_pause
725 ("jdp.pause",
726 "set com.sun.management.jdp.pause", "INT", false),
727
728 _jdp_name
729 ("jdp.name",
730 "set com.sun.management.jdp.name", "STRING", false)
731
732 {
733 _dcmdparser.add_dcmd_option(&_config_file);
734 _dcmdparser.add_dcmd_option(&_jmxremote_host);
735 _dcmdparser.add_dcmd_option(&_jmxremote_port);
736 _dcmdparser.add_dcmd_option(&_jmxremote_rmi_port);
737 _dcmdparser.add_dcmd_option(&_jmxremote_ssl);
738 _dcmdparser.add_dcmd_option(&_jmxremote_registry_ssl);
739 _dcmdparser.add_dcmd_option(&_jmxremote_authenticate);
740 _dcmdparser.add_dcmd_option(&_jmxremote_password_file);
741 _dcmdparser.add_dcmd_option(&_jmxremote_access_file);
742 _dcmdparser.add_dcmd_option(&_jmxremote_login_config);
743 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_cipher_suites);
744 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_protocols);
745 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_need_client_auth);
746 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_config_file);
747 _dcmdparser.add_dcmd_option(&_jmxremote_autodiscovery);
748 _dcmdparser.add_dcmd_option(&_jdp_port);
749 _dcmdparser.add_dcmd_option(&_jdp_address);
750 _dcmdparser.add_dcmd_option(&_jdp_source_addr);
751 _dcmdparser.add_dcmd_option(&_jdp_ttl);
752 _dcmdparser.add_dcmd_option(&_jdp_pause);
753 _dcmdparser.add_dcmd_option(&_jdp_name);
754 }
755
756
757 int JMXStartRemoteDCmd::num_arguments() {
758 ResourceMark rm;
759 JMXStartRemoteDCmd* dcmd = new JMXStartRemoteDCmd(NULL, false);
760 if (dcmd != NULL) {
761 DCmdMark mark(dcmd);
762 return dcmd->_dcmdparser.num_arguments();
763 } else {
764 return 0;
765 }
766 }
767
768
769 void JMXStartRemoteDCmd::execute(DCmdSource source, TRAPS) {
770 ResourceMark rm(THREAD);
771 HandleMark hm(THREAD);
772
773 // Load and initialize the jdk.internal.agent.Agent class
774 // invoke startRemoteManagementAgent(string) method to start
775 // the remote management server.
776 // throw java.lang.NoSuchMethodError if the method doesn't exist
777
778 loadAgentModule(CHECK);
779 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
780 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK);
781
782 JavaValue result(T_VOID);
783
784 // Pass all command line arguments to java as key=value,...
785 // All checks are done on java side
786
787 int len = 0;
788 stringStream options;
789 char comma[2] = {0,0};
790
791 // Leave default values on Agent.class side and pass only
792 // agruments explicitly set by user. All arguments passed
793 // to jcmd override properties with the same name set by
794 // command line with -D or by managmenent.properties
795 // file.
796 #define PUT_OPTION(a) \
797 do { \
798 if ( (a).is_set() ){ \
799 if ( *((a).type()) == 'I' ) { \
800 options.print("%scom.sun.management.%s=" JLONG_FORMAT, comma, (a).name(), (jlong)((a).value())); \
801 } else { \
802 options.print("%scom.sun.management.%s=%s", comma, (a).name(), (char*)((a).value())); \
803 } \
804 comma[0] = ','; \
805 }\
806 } while(0);
807
808
809 PUT_OPTION(_config_file);
810 PUT_OPTION(_jmxremote_host);
811 PUT_OPTION(_jmxremote_port);
812 PUT_OPTION(_jmxremote_rmi_port);
813 PUT_OPTION(_jmxremote_ssl);
814 PUT_OPTION(_jmxremote_registry_ssl);
815 PUT_OPTION(_jmxremote_authenticate);
816 PUT_OPTION(_jmxremote_password_file);
817 PUT_OPTION(_jmxremote_access_file);
818 PUT_OPTION(_jmxremote_login_config);
819 PUT_OPTION(_jmxremote_ssl_enabled_cipher_suites);
820 PUT_OPTION(_jmxremote_ssl_enabled_protocols);
821 PUT_OPTION(_jmxremote_ssl_need_client_auth);
822 PUT_OPTION(_jmxremote_ssl_config_file);
823 PUT_OPTION(_jmxremote_autodiscovery);
824 PUT_OPTION(_jdp_port);
825 PUT_OPTION(_jdp_address);
826 PUT_OPTION(_jdp_source_addr);
827 PUT_OPTION(_jdp_ttl);
828 PUT_OPTION(_jdp_pause);
829 PUT_OPTION(_jdp_name);
830
831 #undef PUT_OPTION
832
833 Handle str = java_lang_String::create_from_str(options.as_string(), CHECK);
834 JavaCalls::call_static(&result, k, vmSymbols::startRemoteAgent_name(), vmSymbols::string_void_signature(), str, CHECK);
835 }
836
837 JMXStartLocalDCmd::JMXStartLocalDCmd(outputStream *output, bool heap_allocated) :
838 DCmd(output, heap_allocated) {
839 // do nothing
840 }
841
842 void JMXStartLocalDCmd::execute(DCmdSource source, TRAPS) {
843 ResourceMark rm(THREAD);
844 HandleMark hm(THREAD);
845
846 // Load and initialize the jdk.internal.agent.Agent class
847 // invoke startLocalManagementAgent(void) method to start
848 // the local management server
849 // throw java.lang.NoSuchMethodError if method doesn't exist
850
851 loadAgentModule(CHECK);
852 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
853 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK);
854
855 JavaValue result(T_VOID);
856 JavaCalls::call_static(&result, k, vmSymbols::startLocalAgent_name(), vmSymbols::void_method_signature(), CHECK);
857 }
858
859 void JMXStopRemoteDCmd::execute(DCmdSource source, TRAPS) {
860 ResourceMark rm(THREAD);
861 HandleMark hm(THREAD);
862
863 // Load and initialize the jdk.internal.agent.Agent class
864 // invoke stopRemoteManagementAgent method to stop the
865 // management server
866 // throw java.lang.NoSuchMethodError if method doesn't exist
867
868 loadAgentModule(CHECK);
869 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
870 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK);
871
872 JavaValue result(T_VOID);
873 JavaCalls::call_static(&result, k, vmSymbols::stopRemoteAgent_name(), vmSymbols::void_method_signature(), CHECK);
874 }
875
876 JMXStatusDCmd::JMXStatusDCmd(outputStream *output, bool heap_allocated) :
877 DCmd(output, heap_allocated) {
878 // do nothing
879 }
880
881 void JMXStatusDCmd::execute(DCmdSource source, TRAPS) {
882 ResourceMark rm(THREAD);
883 HandleMark hm(THREAD);
884
885 // Load and initialize the jdk.internal.agent.Agent class
886 // invoke getManagementAgentStatus() method to generate the status info
887 // throw java.lang.NoSuchMethodError if method doesn't exist
888
889 loadAgentModule(CHECK);
890 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
891 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK);
892
893 JavaValue result(T_OBJECT);
894 JavaCalls::call_static(&result, k, vmSymbols::getAgentStatus_name(), vmSymbols::void_string_signature(), CHECK);
895
896 jvalue* jv = (jvalue*) result.get_value_addr();
897 oop str = (oop) jv->l;
898 if (str != NULL) {
899 char* out = java_lang_String::as_utf8_string(str);
900 if (out) {
901 output()->print_cr("%s", out);
902 return;
903 }
904 }
905 output()->print_cr("Error obtaining management agent status");
906 }
907
908 VMDynamicLibrariesDCmd::VMDynamicLibrariesDCmd(outputStream *output, bool heap_allocated) :
909 DCmd(output, heap_allocated) {
910 // do nothing
911 }
912
913 void VMDynamicLibrariesDCmd::execute(DCmdSource source, TRAPS) {
914 os::print_dll_info(output());
915 output()->cr();
916 }
917
918 void CompileQueueDCmd::execute(DCmdSource source, TRAPS) {
919 VM_PrintCompileQueue printCompileQueueOp(output());
920 VMThread::execute(&printCompileQueueOp);
921 }
922
923 void CodeListDCmd::execute(DCmdSource source, TRAPS) {
924 CodeCache::print_codelist(output());
925 }
926
927 void CodeCacheDCmd::execute(DCmdSource source, TRAPS) {
928 CodeCache::print_layout(output());
929 }
930
931 //---< BEGIN >--- CodeHeap State Analytics.
932 CodeHeapAnalyticsDCmd::CodeHeapAnalyticsDCmd(outputStream* output, bool heap) :
933 DCmdWithParser(output, heap),
934 _function("function", "Function to be performed (aggregate, UsedSpace, FreeSpace, MethodCount, MethodSpace, MethodAge, MethodNames, discard", "STRING", false, "all"),
935 _granularity("granularity", "Detail level - smaller value -> more detail", "STRING", false, "4096") {
936 _dcmdparser.add_dcmd_argument(&_function);
937 _dcmdparser.add_dcmd_argument(&_granularity);
938 }
939
940 void CodeHeapAnalyticsDCmd::execute(DCmdSource source, TRAPS) {
941 CompileBroker::print_heapinfo(output(), _function.value(), _granularity.value());
942 }
943
944 int CodeHeapAnalyticsDCmd::num_arguments() {
945 ResourceMark rm;
946 CodeHeapAnalyticsDCmd* dcmd = new CodeHeapAnalyticsDCmd(NULL, false);
947 if (dcmd != NULL) {
948 DCmdMark mark(dcmd);
949 return dcmd->_dcmdparser.num_arguments();
950 } else {
951 return 0;
952 }
953 }
954 //---< END >--- CodeHeap State Analytics.
955
956 void CompilerDirectivesPrintDCmd::execute(DCmdSource source, TRAPS) {
957 DirectivesStack::print(output());
958 }
959
960 CompilerDirectivesAddDCmd::CompilerDirectivesAddDCmd(outputStream* output, bool heap) :
961 DCmdWithParser(output, heap),
962 _filename("filename","Name of the directives file", "STRING",true) {
963 _dcmdparser.add_dcmd_argument(&_filename);
964 }
965
966 void CompilerDirectivesAddDCmd::execute(DCmdSource source, TRAPS) {
967 DirectivesParser::parse_from_file(_filename.value(), output());
968 }
969
970 int CompilerDirectivesAddDCmd::num_arguments() {
971 ResourceMark rm;
972 CompilerDirectivesAddDCmd* dcmd = new CompilerDirectivesAddDCmd(NULL, false);
973 if (dcmd != NULL) {
974 DCmdMark mark(dcmd);
975 return dcmd->_dcmdparser.num_arguments();
976 } else {
977 return 0;
978 }
979 }
980
981 void CompilerDirectivesRemoveDCmd::execute(DCmdSource source, TRAPS) {
982 DirectivesStack::pop(1);
983 }
984
985 void CompilerDirectivesClearDCmd::execute(DCmdSource source, TRAPS) {
986 DirectivesStack::clear();
987 }
988 #if INCLUDE_SERVICES
989 ClassHierarchyDCmd::ClassHierarchyDCmd(outputStream* output, bool heap) :
990 DCmdWithParser(output, heap),
991 _print_interfaces("-i", "Inherited interfaces should be printed.", "BOOLEAN", false, "false"),
992 _print_subclasses("-s", "If a classname is specified, print its subclasses. "
993 "Otherwise only its superclasses are printed.", "BOOLEAN", false, "false"),
994 _classname("classname", "Name of class whose hierarchy should be printed. "
995 "If not specified, all class hierarchies are printed.",
996 "STRING", false) {
997 _dcmdparser.add_dcmd_option(&_print_interfaces);
998 _dcmdparser.add_dcmd_option(&_print_subclasses);
999 _dcmdparser.add_dcmd_argument(&_classname);
1000 }
1001
1002 void ClassHierarchyDCmd::execute(DCmdSource source, TRAPS) {
1003 VM_PrintClassHierarchy printClassHierarchyOp(output(), _print_interfaces.value(),
1004 _print_subclasses.value(), _classname.value());
1005 VMThread::execute(&printClassHierarchyOp);
1006 }
1007
1008 int ClassHierarchyDCmd::num_arguments() {
1009 ResourceMark rm;
1010 ClassHierarchyDCmd* dcmd = new ClassHierarchyDCmd(NULL, false);
1011 if (dcmd != NULL) {
1012 DCmdMark mark(dcmd);
1013 return dcmd->_dcmdparser.num_arguments();
1014 } else {
1015 return 0;
1016 }
1017 }
1018
1019 #endif
1020
1021 class VM_DumpTouchedMethods : public VM_Operation {
1022 private:
1023 outputStream* _out;
1024 public:
1025 VM_DumpTouchedMethods(outputStream* out) {
1026 _out = out;
1027 }
1028
1029 virtual VMOp_Type type() const { return VMOp_DumpTouchedMethods; }
1030
1031 virtual void doit() {
1032 Method::print_touched_methods(_out);
1033 }
1034 };
1035
1036 TouchedMethodsDCmd::TouchedMethodsDCmd(outputStream* output, bool heap) :
1037 DCmdWithParser(output, heap)
1038 {}
1039
1040 void TouchedMethodsDCmd::execute(DCmdSource source, TRAPS) {
1041 if (!LogTouchedMethods) {
1042 output()->print_cr("VM.print_touched_methods command requires -XX:+LogTouchedMethods");
1043 return;
1044 }
1045 VM_DumpTouchedMethods dumper(output());
1046 VMThread::execute(&dumper);
1047 }
1048
1049 int TouchedMethodsDCmd::num_arguments() {
1050 return 0;
1051 }