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/globals.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 void HelpDCmd::execute(DCmdSource source, TRAPS) {
141 if (_all.value()) {
142 GrowableArray<const char*>* cmd_list = DCmdFactory::DCmd_list(source);
143 for (int i = 0; i < cmd_list->length(); i++) {
144 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i),
145 strlen(cmd_list->at(i)));
146 output()->print_cr("%s%s", factory->name(),
147 factory->is_enabled() ? "" : " [disabled]");
148 output()->print_cr("\t%s", factory->description());
149 output()->cr();
150 factory = factory->next();
151 }
152 } else if (_cmd.has_value()) {
153 DCmd* cmd = NULL;
154 DCmdFactory* factory = DCmdFactory::factory(source, _cmd.value(),
155 strlen(_cmd.value()));
156 if (factory != NULL) {
157 output()->print_cr("%s%s", factory->name(),
158 factory->is_enabled() ? "" : " [disabled]");
159 output()->print_cr("%s", factory->description());
160 output()->print_cr("\nImpact: %s", factory->impact());
161 JavaPermission p = factory->permission();
162 if(p._class != NULL) {
163 if(p._action != NULL) {
164 output()->print_cr("\nPermission: %s(%s, %s)",
165 p._class, p._name == NULL ? "null" : p._name, p._action);
166 } else {
167 output()->print_cr("\nPermission: %s(%s)",
168 p._class, p._name == NULL ? "null" : p._name);
169 }
170 }
171 output()->cr();
172 cmd = factory->create_resource_instance(output());
173 if (cmd != NULL) {
174 DCmdMark mark(cmd);
175 cmd->print_help(factory->name());
176 }
177 } else {
178 output()->print_cr("Help unavailable : '%s' : No such command", _cmd.value());
179 }
180 } else {
181 output()->print_cr("The following commands are available:");
182 GrowableArray<const char *>* cmd_list = DCmdFactory::DCmd_list(source);
183 for (int i = 0; i < cmd_list->length(); i++) {
184 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i),
185 strlen(cmd_list->at(i)));
186 output()->print_cr("%s%s", factory->name(),
187 factory->is_enabled() ? "" : " [disabled]");
188 factory = factory->_next;
189 }
190 output()->print_cr("\nFor more information about a specific command use 'help <command>'.");
191 }
192 }
193
194 int HelpDCmd::num_arguments() {
195 ResourceMark rm;
196 HelpDCmd* dcmd = new HelpDCmd(NULL, false);
197 if (dcmd != NULL) {
198 DCmdMark mark(dcmd);
199 return dcmd->_dcmdparser.num_arguments();
200 } else {
201 return 0;
202 }
203 }
204
205 void VersionDCmd::execute(DCmdSource source, TRAPS) {
206 output()->print_cr("%s version %s", Abstract_VM_Version::vm_name(),
207 Abstract_VM_Version::vm_release());
208 JDK_Version jdk_version = JDK_Version::current();
209 if (jdk_version.patch_version() > 0) {
210 output()->print_cr("JDK %d.%d.%d.%d", jdk_version.major_version(),
211 jdk_version.minor_version(), jdk_version.security_version(),
212 jdk_version.patch_version());
213 } else {
214 output()->print_cr("JDK %d.%d.%d", jdk_version.major_version(),
215 jdk_version.minor_version(), jdk_version.security_version());
216 }
217 }
218
219 PrintVMFlagsDCmd::PrintVMFlagsDCmd(outputStream* output, bool heap) :
220 DCmdWithParser(output, heap),
221 _all("-all", "Print all flags supported by the VM", "BOOLEAN", false, "false") {
222 _dcmdparser.add_dcmd_option(&_all);
223 }
224
225 void PrintVMFlagsDCmd::execute(DCmdSource source, TRAPS) {
226 if (_all.value()) {
227 CommandLineFlags::printFlags(output(), true);
228 } else {
229 CommandLineFlags::printSetFlags(output());
230 }
231 }
232
233 int PrintVMFlagsDCmd::num_arguments() {
234 ResourceMark rm;
235 PrintVMFlagsDCmd* dcmd = new PrintVMFlagsDCmd(NULL, false);
236 if (dcmd != NULL) {
237 DCmdMark mark(dcmd);
238 return dcmd->_dcmdparser.num_arguments();
239 } else {
240 return 0;
241 }
242 }
243
244 SetVMFlagDCmd::SetVMFlagDCmd(outputStream* output, bool heap) :
245 DCmdWithParser(output, heap),
246 _flag("flag name", "The name of the flag we want to set",
247 "STRING", true),
248 _value("string value", "The value we want to set", "STRING", false) {
249 _dcmdparser.add_dcmd_argument(&_flag);
250 _dcmdparser.add_dcmd_argument(&_value);
251 }
252
253 void SetVMFlagDCmd::execute(DCmdSource source, TRAPS) {
254 const char* val = NULL;
255 if (_value.value() != NULL) {
256 val = _value.value();
257 }
258
259 FormatBuffer<80> err_msg("%s", "");
260 int ret = WriteableFlags::set_flag(_flag.value(), val, Flag::MANAGEMENT, err_msg);
261
262 if (ret != Flag::SUCCESS) {
263 output()->print_cr("%s", err_msg.buffer());
264 }
265 }
266
267 int SetVMFlagDCmd::num_arguments() {
268 ResourceMark rm;
269 SetVMFlagDCmd* dcmd = new SetVMFlagDCmd(NULL, false);
270 if (dcmd != NULL) {
271 DCmdMark mark(dcmd);
272 return dcmd->_dcmdparser.num_arguments();
273 } else {
274 return 0;
275 }
276 }
277
278 void JVMTIDataDumpDCmd::execute(DCmdSource source, TRAPS) {
279 if (JvmtiExport::should_post_data_dump()) {
280 JvmtiExport::post_data_dump();
281 }
282 }
283
284 #if INCLUDE_SERVICES
285 JVMTIAgentLoadDCmd::JVMTIAgentLoadDCmd(outputStream* output, bool heap) :
286 DCmdWithParser(output, heap),
287 _libpath("library path", "Absolute path of the JVMTI agent to load.",
288 "STRING", true),
289 _option("agent option", "Option string to pass the agent.", "STRING", false) {
290 _dcmdparser.add_dcmd_argument(&_libpath);
291 _dcmdparser.add_dcmd_argument(&_option);
292 }
293
294 void JVMTIAgentLoadDCmd::execute(DCmdSource source, TRAPS) {
295
296 if (_libpath.value() == NULL) {
297 output()->print_cr("JVMTI.agent_load dcmd needs library path.");
298 return;
299 }
300
301 char *suffix = strrchr(_libpath.value(), '.');
302 bool is_java_agent = (suffix != NULL) && (strncmp(".jar", suffix, 4) == 0);
303
304 if (is_java_agent) {
305 if (_option.value() == NULL) {
306 JvmtiExport::load_agent_library("instrument", "false",
307 _libpath.value(), output());
308 } else {
309 size_t opt_len = strlen(_libpath.value()) + strlen(_option.value()) + 2;
310 if (opt_len > 4096) {
311 output()->print_cr("JVMTI agent attach failed: Options is too long.");
312 return;
313 }
314
315 char *opt = (char *)os::malloc(opt_len, mtInternal);
316 if (opt == NULL) {
317 output()->print_cr("JVMTI agent attach failed: "
318 "Could not allocate " SIZE_FORMAT " bytes for argument.",
319 opt_len);
320 return;
321 }
322
323 jio_snprintf(opt, opt_len, "%s=%s", _libpath.value(), _option.value());
324 JvmtiExport::load_agent_library("instrument", "false", opt, output());
325
326 os::free(opt);
327 }
328 } else {
329 JvmtiExport::load_agent_library(_libpath.value(), "true",
330 _option.value(), output());
331 }
332 }
333
334 int JVMTIAgentLoadDCmd::num_arguments() {
335 ResourceMark rm;
336 JVMTIAgentLoadDCmd* dcmd = new JVMTIAgentLoadDCmd(NULL, false);
337 if (dcmd != NULL) {
338 DCmdMark mark(dcmd);
339 return dcmd->_dcmdparser.num_arguments();
340 } else {
341 return 0;
342 }
343 }
344 #endif // INCLUDE_SERVICES
345
346 void PrintSystemPropertiesDCmd::execute(DCmdSource source, TRAPS) {
347 // load VMSupport
348 Symbol* klass = vmSymbols::jdk_internal_vm_VMSupport();
349 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK);
350 InstanceKlass* ik = InstanceKlass::cast(k);
351 if (ik->should_be_initialized()) {
352 ik->initialize(THREAD);
353 }
354 if (HAS_PENDING_EXCEPTION) {
355 java_lang_Throwable::print(PENDING_EXCEPTION, output());
356 output()->cr();
357 CLEAR_PENDING_EXCEPTION;
358 return;
359 }
360
361 // invoke the serializePropertiesToByteArray method
362 JavaValue result(T_OBJECT);
363 JavaCallArguments args;
364
365 Symbol* signature = vmSymbols::serializePropertiesToByteArray_signature();
366 JavaCalls::call_static(&result,
367 ik,
368 vmSymbols::serializePropertiesToByteArray_name(),
369 signature,
370 &args,
371 THREAD);
372 if (HAS_PENDING_EXCEPTION) {
373 java_lang_Throwable::print(PENDING_EXCEPTION, output());
374 output()->cr();
375 CLEAR_PENDING_EXCEPTION;
376 return;
377 }
378
379 // The result should be a [B
380 oop res = (oop)result.get_jobject();
381 assert(res->is_typeArray(), "just checking");
382 assert(TypeArrayKlass::cast(res->klass())->element_type() == T_BYTE, "just checking");
383
384 // copy the bytes to the output stream
385 typeArrayOop ba = typeArrayOop(res);
386 jbyte* addr = typeArrayOop(res)->byte_at_addr(0);
387 output()->print_raw((const char*)addr, ba->length());
388 }
389
390 VMUptimeDCmd::VMUptimeDCmd(outputStream* output, bool heap) :
391 DCmdWithParser(output, heap),
392 _date("-date", "Add a prefix with current date", "BOOLEAN", false, "false") {
393 _dcmdparser.add_dcmd_option(&_date);
394 }
395
396 void VMUptimeDCmd::execute(DCmdSource source, TRAPS) {
397 if (_date.value()) {
398 output()->date_stamp(true, "", ": ");
399 }
400 output()->time_stamp().update_to(tty->time_stamp().ticks());
401 output()->stamp();
402 output()->print_cr(" s");
403 }
404
405 int VMUptimeDCmd::num_arguments() {
406 ResourceMark rm;
407 VMUptimeDCmd* dcmd = new VMUptimeDCmd(NULL, false);
408 if (dcmd != NULL) {
409 DCmdMark mark(dcmd);
410 return dcmd->_dcmdparser.num_arguments();
411 } else {
412 return 0;
413 }
414 }
415
416 void VMInfoDCmd::execute(DCmdSource source, TRAPS) {
417 VMError::print_vm_info(_output);
418 }
419
420 void SystemGCDCmd::execute(DCmdSource source, TRAPS) {
421 Universe::heap()->collect(GCCause::_dcmd_gc_run);
422 }
423
424 void RunFinalizationDCmd::execute(DCmdSource source, TRAPS) {
425 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_System(),
426 true, CHECK);
427 JavaValue result(T_VOID);
428 JavaCalls::call_static(&result, k,
429 vmSymbols::run_finalization_name(),
430 vmSymbols::void_method_signature(), CHECK);
431 }
432
433 void HeapInfoDCmd::execute(DCmdSource source, TRAPS) {
434 MutexLocker hl(Heap_lock);
435 Universe::heap()->print_on(output());
436 }
437
438 void FinalizerInfoDCmd::execute(DCmdSource source, TRAPS) {
439 ResourceMark rm;
440
441 Klass* k = SystemDictionary::resolve_or_fail(
442 vmSymbols::finalizer_histogram_klass(), true, CHECK);
443
444 JavaValue result(T_ARRAY);
445
446 // We are calling lang.ref.FinalizerHistogram.getFinalizerHistogram() method
447 // and expect it to return array of FinalizerHistogramEntry as Object[]
448
449 JavaCalls::call_static(&result, k,
450 vmSymbols::get_finalizer_histogram_name(),
451 vmSymbols::void_finalizer_histogram_entry_array_signature(), CHECK);
452
453 objArrayOop result_oop = (objArrayOop) result.get_jobject();
454 if (result_oop->length() == 0) {
455 output()->print_cr("No instances waiting for finalization found");
456 return;
457 }
458
459 oop foop = result_oop->obj_at(0);
460 InstanceKlass* ik = InstanceKlass::cast(foop->klass());
461
462 fieldDescriptor count_fd, name_fd;
463
464 Klass* count_res = ik->find_field(
465 vmSymbols::finalizer_histogram_entry_count_field(), vmSymbols::int_signature(), &count_fd);
466
467 Klass* name_res = ik->find_field(
468 vmSymbols::finalizer_histogram_entry_name_field(), vmSymbols::string_signature(), &name_fd);
469
470 assert(count_res != NULL && name_res != NULL, "Unexpected layout of FinalizerHistogramEntry");
471
472 output()->print_cr("Unreachable instances waiting for finalization");
473 output()->print_cr("#instances class name");
474 output()->print_cr("-----------------------");
475
476 for (int i = 0; i < result_oop->length(); ++i) {
477 oop element_oop = result_oop->obj_at(i);
478 oop str_oop = element_oop->obj_field(name_fd.offset());
479 char *name = java_lang_String::as_utf8_string(str_oop);
480 int count = element_oop->int_field(count_fd.offset());
481 output()->print_cr("%10d %s", count, name);
482 }
483 }
484
485 #if INCLUDE_SERVICES // Heap dumping/inspection supported
486 HeapDumpDCmd::HeapDumpDCmd(outputStream* output, bool heap) :
487 DCmdWithParser(output, heap),
488 _filename("filename","Name of the dump file", "STRING",true),
489 _all("-all", "Dump all objects, including unreachable objects",
490 "BOOLEAN", false, "false") {
491 _dcmdparser.add_dcmd_option(&_all);
492 _dcmdparser.add_dcmd_argument(&_filename);
493 }
494
495 void HeapDumpDCmd::execute(DCmdSource source, TRAPS) {
496 // Request a full GC before heap dump if _all is false
497 // This helps reduces the amount of unreachable objects in the dump
498 // and makes it easier to browse.
499 HeapDumper dumper(!_all.value() /* request GC if _all is false*/);
500 int res = dumper.dump(_filename.value());
501 if (res == 0) {
502 output()->print_cr("Heap dump file created");
503 } else {
504 // heap dump failed
505 ResourceMark rm;
506 char* error = dumper.error_as_C_string();
507 if (error == NULL) {
508 output()->print_cr("Dump failed - reason unknown");
509 } else {
510 output()->print_cr("%s", error);
511 }
512 }
513 }
514
515 int HeapDumpDCmd::num_arguments() {
516 ResourceMark rm;
517 HeapDumpDCmd* dcmd = new HeapDumpDCmd(NULL, false);
518 if (dcmd != NULL) {
519 DCmdMark mark(dcmd);
520 return dcmd->_dcmdparser.num_arguments();
521 } else {
522 return 0;
523 }
524 }
525
526 ClassHistogramDCmd::ClassHistogramDCmd(outputStream* output, bool heap) :
527 DCmdWithParser(output, heap),
528 _all("-all", "Inspect all objects, including unreachable objects",
529 "BOOLEAN", false, "false") {
530 _dcmdparser.add_dcmd_option(&_all);
531 }
532
533 void ClassHistogramDCmd::execute(DCmdSource source, TRAPS) {
534 VM_GC_HeapInspection heapop(output(),
535 !_all.value() /* request full gc if false */);
536 VMThread::execute(&heapop);
537 }
538
539 int ClassHistogramDCmd::num_arguments() {
540 ResourceMark rm;
541 ClassHistogramDCmd* dcmd = new ClassHistogramDCmd(NULL, false);
542 if (dcmd != NULL) {
543 DCmdMark mark(dcmd);
544 return dcmd->_dcmdparser.num_arguments();
545 } else {
546 return 0;
547 }
548 }
549
550 #define DEFAULT_COLUMNS "InstBytes,KlassBytes,CpAll,annotations,MethodCount,Bytecodes,MethodAll,ROAll,RWAll,Total"
551 ClassStatsDCmd::ClassStatsDCmd(outputStream* output, bool heap) :
552 DCmdWithParser(output, heap),
553 _csv("-csv", "Print in CSV (comma-separated values) format for spreadsheets",
554 "BOOLEAN", false, "false"),
555 _all("-all", "Show all columns",
556 "BOOLEAN", false, "false"),
557 _help("-help", "Show meaning of all the columns",
558 "BOOLEAN", false, "false"),
559 _columns("columns", "Comma-separated list of all the columns to show. "
560 "If not specified, the following columns are shown: " DEFAULT_COLUMNS,
561 "STRING", false) {
562 _dcmdparser.add_dcmd_option(&_all);
563 _dcmdparser.add_dcmd_option(&_csv);
564 _dcmdparser.add_dcmd_option(&_help);
565 _dcmdparser.add_dcmd_argument(&_columns);
566 }
567
568 void ClassStatsDCmd::execute(DCmdSource source, TRAPS) {
569 VM_GC_HeapInspection heapop(output(),
570 true /* request_full_gc */);
571 heapop.set_csv_format(_csv.value());
572 heapop.set_print_help(_help.value());
573 heapop.set_print_class_stats(true);
574 if (_all.value()) {
575 if (_columns.has_value()) {
576 output()->print_cr("Cannot specify -all and individual columns at the same time");
577 return;
578 } else {
579 heapop.set_columns(NULL);
580 }
581 } else {
582 if (_columns.has_value()) {
583 heapop.set_columns(_columns.value());
584 } else {
585 heapop.set_columns(DEFAULT_COLUMNS);
586 }
587 }
588 VMThread::execute(&heapop);
589 }
590
591 int ClassStatsDCmd::num_arguments() {
592 ResourceMark rm;
593 ClassStatsDCmd* dcmd = new ClassStatsDCmd(NULL, false);
594 if (dcmd != NULL) {
595 DCmdMark mark(dcmd);
596 return dcmd->_dcmdparser.num_arguments();
597 } else {
598 return 0;
599 }
600 }
601 #endif // INCLUDE_SERVICES
602
603 ThreadDumpDCmd::ThreadDumpDCmd(outputStream* output, bool heap) :
604 DCmdWithParser(output, heap),
605 _locks("-l", "print java.util.concurrent locks", "BOOLEAN", false, "false") {
606 _dcmdparser.add_dcmd_option(&_locks);
607 }
608
609 void ThreadDumpDCmd::execute(DCmdSource source, TRAPS) {
610 // thread stacks
611 VM_PrintThreads op1(output(), _locks.value());
612 VMThread::execute(&op1);
613
614 // JNI global handles
615 VM_PrintJNI op2(output());
616 VMThread::execute(&op2);
617
618 // Deadlock detection
619 VM_FindDeadlocks op3(output());
620 VMThread::execute(&op3);
621 }
622
623 int ThreadDumpDCmd::num_arguments() {
624 ResourceMark rm;
625 ThreadDumpDCmd* dcmd = new ThreadDumpDCmd(NULL, false);
626 if (dcmd != NULL) {
627 DCmdMark mark(dcmd);
628 return dcmd->_dcmdparser.num_arguments();
629 } else {
630 return 0;
631 }
632 }
633
634 // Enhanced JMX Agent support
635
636 JMXStartRemoteDCmd::JMXStartRemoteDCmd(outputStream *output, bool heap_allocated) :
637
638 DCmdWithParser(output, heap_allocated),
639
640 _config_file
641 ("config.file",
642 "set com.sun.management.config.file", "STRING", false),
643
644 _jmxremote_host
645 ("jmxremote.host",
646 "set com.sun.management.jmxremote.host", "STRING", false),
647
648 _jmxremote_port
649 ("jmxremote.port",
650 "set com.sun.management.jmxremote.port", "STRING", false),
651
652 _jmxremote_rmi_port
653 ("jmxremote.rmi.port",
654 "set com.sun.management.jmxremote.rmi.port", "STRING", false),
655
656 _jmxremote_ssl
657 ("jmxremote.ssl",
658 "set com.sun.management.jmxremote.ssl", "STRING", false),
659
660 _jmxremote_registry_ssl
661 ("jmxremote.registry.ssl",
662 "set com.sun.management.jmxremote.registry.ssl", "STRING", false),
663
664 _jmxremote_authenticate
665 ("jmxremote.authenticate",
666 "set com.sun.management.jmxremote.authenticate", "STRING", false),
667
668 _jmxremote_password_file
669 ("jmxremote.password.file",
670 "set com.sun.management.jmxremote.password.file", "STRING", false),
671
672 _jmxremote_access_file
673 ("jmxremote.access.file",
674 "set com.sun.management.jmxremote.access.file", "STRING", false),
675
676 _jmxremote_login_config
677 ("jmxremote.login.config",
678 "set com.sun.management.jmxremote.login.config", "STRING", false),
679
680 _jmxremote_ssl_enabled_cipher_suites
681 ("jmxremote.ssl.enabled.cipher.suites",
682 "set com.sun.management.jmxremote.ssl.enabled.cipher.suite", "STRING", false),
683
684 _jmxremote_ssl_enabled_protocols
685 ("jmxremote.ssl.enabled.protocols",
686 "set com.sun.management.jmxremote.ssl.enabled.protocols", "STRING", false),
687
688 _jmxremote_ssl_need_client_auth
689 ("jmxremote.ssl.need.client.auth",
690 "set com.sun.management.jmxremote.need.client.auth", "STRING", false),
691
692 _jmxremote_ssl_config_file
693 ("jmxremote.ssl.config.file",
694 "set com.sun.management.jmxremote.ssl_config_file", "STRING", false),
695
696 // JDP Protocol support
697 _jmxremote_autodiscovery
698 ("jmxremote.autodiscovery",
699 "set com.sun.management.jmxremote.autodiscovery", "STRING", false),
700
701 _jdp_port
702 ("jdp.port",
703 "set com.sun.management.jdp.port", "INT", false),
704
705 _jdp_address
706 ("jdp.address",
707 "set com.sun.management.jdp.address", "STRING", false),
708
709 _jdp_source_addr
710 ("jdp.source_addr",
711 "set com.sun.management.jdp.source_addr", "STRING", false),
712
713 _jdp_ttl
714 ("jdp.ttl",
715 "set com.sun.management.jdp.ttl", "INT", false),
716
717 _jdp_pause
718 ("jdp.pause",
719 "set com.sun.management.jdp.pause", "INT", false),
720
721 _jdp_name
722 ("jdp.name",
723 "set com.sun.management.jdp.name", "STRING", false)
724
725 {
726 _dcmdparser.add_dcmd_option(&_config_file);
727 _dcmdparser.add_dcmd_option(&_jmxremote_host);
728 _dcmdparser.add_dcmd_option(&_jmxremote_port);
729 _dcmdparser.add_dcmd_option(&_jmxremote_rmi_port);
730 _dcmdparser.add_dcmd_option(&_jmxremote_ssl);
731 _dcmdparser.add_dcmd_option(&_jmxremote_registry_ssl);
732 _dcmdparser.add_dcmd_option(&_jmxremote_authenticate);
733 _dcmdparser.add_dcmd_option(&_jmxremote_password_file);
734 _dcmdparser.add_dcmd_option(&_jmxremote_access_file);
735 _dcmdparser.add_dcmd_option(&_jmxremote_login_config);
736 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_cipher_suites);
737 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_protocols);
738 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_need_client_auth);
739 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_config_file);
740 _dcmdparser.add_dcmd_option(&_jmxremote_autodiscovery);
741 _dcmdparser.add_dcmd_option(&_jdp_port);
742 _dcmdparser.add_dcmd_option(&_jdp_address);
743 _dcmdparser.add_dcmd_option(&_jdp_source_addr);
744 _dcmdparser.add_dcmd_option(&_jdp_ttl);
745 _dcmdparser.add_dcmd_option(&_jdp_pause);
746 _dcmdparser.add_dcmd_option(&_jdp_name);
747 }
748
749
750 int JMXStartRemoteDCmd::num_arguments() {
751 ResourceMark rm;
752 JMXStartRemoteDCmd* dcmd = new JMXStartRemoteDCmd(NULL, false);
753 if (dcmd != NULL) {
754 DCmdMark mark(dcmd);
755 return dcmd->_dcmdparser.num_arguments();
756 } else {
757 return 0;
758 }
759 }
760
761
762 void JMXStartRemoteDCmd::execute(DCmdSource source, TRAPS) {
763 ResourceMark rm(THREAD);
764 HandleMark hm(THREAD);
765
766 // Load and initialize the jdk.internal.agent.Agent class
767 // invoke startRemoteManagementAgent(string) method to start
768 // the remote management server.
769 // throw java.lang.NoSuchMethodError if the method doesn't exist
770
771 loadAgentModule(CHECK);
772 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
773 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK);
774
775 JavaValue result(T_VOID);
776
777 // Pass all command line arguments to java as key=value,...
778 // All checks are done on java side
779
780 int len = 0;
781 stringStream options;
782 char comma[2] = {0,0};
783
784 // Leave default values on Agent.class side and pass only
785 // agruments explicitly set by user. All arguments passed
786 // to jcmd override properties with the same name set by
787 // command line with -D or by managmenent.properties
788 // file.
789 #define PUT_OPTION(a) \
790 do { \
791 if ( (a).is_set() ){ \
792 if ( *((a).type()) == 'I' ) { \
793 options.print("%scom.sun.management.%s=" JLONG_FORMAT, comma, (a).name(), (jlong)((a).value())); \
794 } else { \
795 options.print("%scom.sun.management.%s=%s", comma, (a).name(), (char*)((a).value())); \
796 } \
797 comma[0] = ','; \
798 }\
799 } while(0);
800
801
802 PUT_OPTION(_config_file);
803 PUT_OPTION(_jmxremote_host);
804 PUT_OPTION(_jmxremote_port);
805 PUT_OPTION(_jmxremote_rmi_port);
806 PUT_OPTION(_jmxremote_ssl);
807 PUT_OPTION(_jmxremote_registry_ssl);
808 PUT_OPTION(_jmxremote_authenticate);
809 PUT_OPTION(_jmxremote_password_file);
810 PUT_OPTION(_jmxremote_access_file);
811 PUT_OPTION(_jmxremote_login_config);
812 PUT_OPTION(_jmxremote_ssl_enabled_cipher_suites);
813 PUT_OPTION(_jmxremote_ssl_enabled_protocols);
814 PUT_OPTION(_jmxremote_ssl_need_client_auth);
815 PUT_OPTION(_jmxremote_ssl_config_file);
816 PUT_OPTION(_jmxremote_autodiscovery);
817 PUT_OPTION(_jdp_port);
818 PUT_OPTION(_jdp_address);
819 PUT_OPTION(_jdp_source_addr);
820 PUT_OPTION(_jdp_ttl);
821 PUT_OPTION(_jdp_pause);
822 PUT_OPTION(_jdp_name);
823
824 #undef PUT_OPTION
825
826 Handle str = java_lang_String::create_from_str(options.as_string(), CHECK);
827 JavaCalls::call_static(&result, k, vmSymbols::startRemoteAgent_name(), vmSymbols::string_void_signature(), str, CHECK);
828 }
829
830 JMXStartLocalDCmd::JMXStartLocalDCmd(outputStream *output, bool heap_allocated) :
831 DCmd(output, heap_allocated) {
832 // do nothing
833 }
834
835 void JMXStartLocalDCmd::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 startLocalManagementAgent(void) method to start
841 // the local management server
842 // throw java.lang.NoSuchMethodError if method doesn't exist
843
844 loadAgentModule(CHECK);
845 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
846 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK);
847
848 JavaValue result(T_VOID);
849 JavaCalls::call_static(&result, k, vmSymbols::startLocalAgent_name(), vmSymbols::void_method_signature(), CHECK);
850 }
851
852 void JMXStopRemoteDCmd::execute(DCmdSource source, TRAPS) {
853 ResourceMark rm(THREAD);
854 HandleMark hm(THREAD);
855
856 // Load and initialize the jdk.internal.agent.Agent class
857 // invoke stopRemoteManagementAgent method to stop the
858 // management server
859 // throw java.lang.NoSuchMethodError if method doesn't exist
860
861 loadAgentModule(CHECK);
862 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
863 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK);
864
865 JavaValue result(T_VOID);
866 JavaCalls::call_static(&result, k, vmSymbols::stopRemoteAgent_name(), vmSymbols::void_method_signature(), CHECK);
867 }
868
869 JMXStatusDCmd::JMXStatusDCmd(outputStream *output, bool heap_allocated) :
870 DCmd(output, heap_allocated) {
871 // do nothing
872 }
873
874 void JMXStatusDCmd::execute(DCmdSource source, TRAPS) {
875 ResourceMark rm(THREAD);
876 HandleMark hm(THREAD);
877
878 // Load and initialize the jdk.internal.agent.Agent class
879 // invoke getManagementAgentStatus() method to generate the status info
880 // throw java.lang.NoSuchMethodError if method doesn't exist
881
882 loadAgentModule(CHECK);
883 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
884 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK);
885
886 JavaValue result(T_OBJECT);
887 JavaCalls::call_static(&result, k, vmSymbols::getAgentStatus_name(), vmSymbols::void_string_signature(), CHECK);
888
889 jvalue* jv = (jvalue*) result.get_value_addr();
890 oop str = (oop) jv->l;
891 if (str != NULL) {
892 char* out = java_lang_String::as_utf8_string(str);
893 if (out) {
894 output()->print_cr("%s", out);
895 return;
896 }
897 }
898 output()->print_cr("Error obtaining management agent status");
899 }
900
901 VMDynamicLibrariesDCmd::VMDynamicLibrariesDCmd(outputStream *output, bool heap_allocated) :
902 DCmd(output, heap_allocated) {
903 // do nothing
904 }
905
906 void VMDynamicLibrariesDCmd::execute(DCmdSource source, TRAPS) {
907 os::print_dll_info(output());
908 output()->cr();
909 }
910
911 void CompileQueueDCmd::execute(DCmdSource source, TRAPS) {
912 VM_PrintCompileQueue printCompileQueueOp(output());
913 VMThread::execute(&printCompileQueueOp);
914 }
915
916 void CodeListDCmd::execute(DCmdSource source, TRAPS) {
917 CodeCache::print_codelist(output());
918 }
919
920 void CodeCacheDCmd::execute(DCmdSource source, TRAPS) {
921 CodeCache::print_layout(output());
922 }
923
924 //---< BEGIN >--- CodeHeap State Analytics.
925 CodeHeapAnalyticsDCmd::CodeHeapAnalyticsDCmd(outputStream* output, bool heap) :
926 DCmdWithParser(output, heap),
927 _function("function", "Function to be performed (aggregate, UsedSpace, FreeSpace, MethodCount, MethodSpace, MethodAge, MethodNames, discard", "STRING", false, "all"),
928 _granularity("granularity", "Detail level - smaller value -> more detail", "STRING", false, "4096") {
929 _dcmdparser.add_dcmd_argument(&_function);
930 _dcmdparser.add_dcmd_argument(&_granularity);
931 }
932
933 void CodeHeapAnalyticsDCmd::execute(DCmdSource source, TRAPS) {
934 CompileBroker::print_heapinfo(output(), _function.value(), _granularity.value());
935 }
936
937 int CodeHeapAnalyticsDCmd::num_arguments() {
938 ResourceMark rm;
939 CodeHeapAnalyticsDCmd* dcmd = new CodeHeapAnalyticsDCmd(NULL, false);
940 if (dcmd != NULL) {
941 DCmdMark mark(dcmd);
942 return dcmd->_dcmdparser.num_arguments();
943 } else {
944 return 0;
945 }
946 }
947 //---< END >--- CodeHeap State Analytics.
948
949 void CompilerDirectivesPrintDCmd::execute(DCmdSource source, TRAPS) {
950 DirectivesStack::print(output());
951 }
952
953 CompilerDirectivesAddDCmd::CompilerDirectivesAddDCmd(outputStream* output, bool heap) :
954 DCmdWithParser(output, heap),
955 _filename("filename","Name of the directives file", "STRING",true) {
956 _dcmdparser.add_dcmd_argument(&_filename);
957 }
958
959 void CompilerDirectivesAddDCmd::execute(DCmdSource source, TRAPS) {
960 DirectivesParser::parse_from_file(_filename.value(), output());
961 }
962
963 int CompilerDirectivesAddDCmd::num_arguments() {
964 ResourceMark rm;
965 CompilerDirectivesAddDCmd* dcmd = new CompilerDirectivesAddDCmd(NULL, false);
966 if (dcmd != NULL) {
967 DCmdMark mark(dcmd);
968 return dcmd->_dcmdparser.num_arguments();
969 } else {
970 return 0;
971 }
972 }
973
974 void CompilerDirectivesRemoveDCmd::execute(DCmdSource source, TRAPS) {
975 DirectivesStack::pop(1);
976 }
977
978 void CompilerDirectivesClearDCmd::execute(DCmdSource source, TRAPS) {
979 DirectivesStack::clear();
980 }
981 #if INCLUDE_SERVICES
982 ClassHierarchyDCmd::ClassHierarchyDCmd(outputStream* output, bool heap) :
983 DCmdWithParser(output, heap),
984 _print_interfaces("-i", "Inherited interfaces should be printed.", "BOOLEAN", false, "false"),
985 _print_subclasses("-s", "If a classname is specified, print its subclasses. "
986 "Otherwise only its superclasses are printed.", "BOOLEAN", false, "false"),
987 _classname("classname", "Name of class whose hierarchy should be printed. "
988 "If not specified, all class hierarchies are printed.",
989 "STRING", false) {
990 _dcmdparser.add_dcmd_option(&_print_interfaces);
991 _dcmdparser.add_dcmd_option(&_print_subclasses);
992 _dcmdparser.add_dcmd_argument(&_classname);
993 }
994
995 void ClassHierarchyDCmd::execute(DCmdSource source, TRAPS) {
996 VM_PrintClassHierarchy printClassHierarchyOp(output(), _print_interfaces.value(),
997 _print_subclasses.value(), _classname.value());
998 VMThread::execute(&printClassHierarchyOp);
999 }
1000
1001 int ClassHierarchyDCmd::num_arguments() {
1002 ResourceMark rm;
1003 ClassHierarchyDCmd* dcmd = new ClassHierarchyDCmd(NULL, false);
1004 if (dcmd != NULL) {
1005 DCmdMark mark(dcmd);
1006 return dcmd->_dcmdparser.num_arguments();
1007 } else {
1008 return 0;
1009 }
1010 }
1011
1012 #endif
1013
1014 class VM_DumpTouchedMethods : public VM_Operation {
1015 private:
1016 outputStream* _out;
1017 public:
1018 VM_DumpTouchedMethods(outputStream* out) {
1019 _out = out;
1020 }
1021
1022 virtual VMOp_Type type() const { return VMOp_DumpTouchedMethods; }
1023
1024 virtual void doit() {
1025 Method::print_touched_methods(_out);
1026 }
1027 };
1028
1029 TouchedMethodsDCmd::TouchedMethodsDCmd(outputStream* output, bool heap) :
1030 DCmdWithParser(output, heap)
1031 {}
1032
1033 void TouchedMethodsDCmd::execute(DCmdSource source, TRAPS) {
1034 if (!LogTouchedMethods) {
1035 output()->print_cr("VM.print_touched_methods command requires -XX:+LogTouchedMethods");
1036 return;
1037 }
1038 VM_DumpTouchedMethods dumper(output());
1039 VMThread::execute(&dumper);
1040 }
1041
1042 int TouchedMethodsDCmd::num_arguments() {
1043 return 0;
1044 }