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src/share/vm/services/diagnosticCommand.cpp@9855b7e559ae
src/share/vm/services/diagnosticCommand.cpp
Fri, 12 Oct 2012 10:49:39 -0700
- author
- collins
- date
- Fri, 12 Oct 2012 10:49:39 -0700
- changeset 4167
- 9855b7e559ae
- parent 4142
- d8ce2825b193
- parent 4165
- fb19af007ffc
- child 4497
- 16fb9f942703
- child 4542
- db9981fd3124
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Merge
1 /*
2 * Copyright (c) 2011, 2012, 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 */
25 #include "precompiled.hpp"
26 #include "gc_implementation/shared/vmGCOperations.hpp"
27 #include "runtime/javaCalls.hpp"
28 #include "services/diagnosticArgument.hpp"
29 #include "services/diagnosticCommand.hpp"
30 #include "services/diagnosticFramework.hpp"
31 #include "services/heapDumper.hpp"
32 #include "services/management.hpp"
34 void DCmdRegistrant::register_dcmds(){
35 // Registration of the diagnostic commands
36 // First boolean argument specifies if the command is enabled
37 // Second boolean argument specifies if the command is hidden
38 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HelpDCmd>(true, false));
39 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VersionDCmd>(true, false));
40 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CommandLineDCmd>(true, false));
41 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintSystemPropertiesDCmd>(true, false));
42 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintVMFlagsDCmd>(true, false));
43 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMUptimeDCmd>(true, false));
44 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SystemGCDCmd>(true, false));
45 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<RunFinalizationDCmd>(true, false));
46 #if INCLUDE_SERVICES // Heap dumping supported
47 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapDumpDCmd>(true, false));
48 #endif // INCLUDE_SERVICES
49 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHistogramDCmd>(true, false));
50 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ThreadDumpDCmd>(true, false));
52 //Enhanced JMX Agent Support
53 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartRemoteDCmd>(true,false));
54 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartLocalDCmd>(true,false));
55 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStopRemoteDCmd>(true,false));
57 }
59 #ifndef HAVE_EXTRA_DCMD
60 void DCmdRegistrant::register_dcmds_ext(){
61 // Do nothing here
62 }
63 #endif
66 HelpDCmd::HelpDCmd(outputStream* output, bool heap) : DCmdWithParser(output, heap),
67 _all("-all", "Show help for all commands", "BOOLEAN", false, "false"),
68 _cmd("command name", "The name of the command for which we want help",
69 "STRING", false) {
70 _dcmdparser.add_dcmd_option(&_all);
71 _dcmdparser.add_dcmd_argument(&_cmd);
72 };
74 void HelpDCmd::execute(TRAPS) {
75 if (_all.value()) {
76 GrowableArray<const char*>* cmd_list = DCmdFactory::DCmd_list();
77 for (int i = 0; i < cmd_list->length(); i++) {
78 DCmdFactory* factory = DCmdFactory::factory(cmd_list->at(i),
79 strlen(cmd_list->at(i)));
80 if (!factory->is_hidden()) {
81 output()->print_cr("%s%s", factory->name(),
82 factory->is_enabled() ? "" : " [disabled]");
83 output()->print_cr("\t%s", factory->description());
84 output()->cr();
85 }
86 factory = factory->next();
87 }
88 } else if (_cmd.has_value()) {
89 DCmd* cmd = NULL;
90 DCmdFactory* factory = DCmdFactory::factory(_cmd.value(),
91 strlen(_cmd.value()));
92 if (factory != NULL) {
93 output()->print_cr("%s%s", factory->name(),
94 factory->is_enabled() ? "" : " [disabled]");
95 output()->print_cr(factory->description());
96 output()->print_cr("\nImpact: %s", factory->impact());
97 output()->cr();
98 cmd = factory->create_resource_instance(output());
99 if (cmd != NULL) {
100 DCmdMark mark(cmd);
101 cmd->print_help(factory->name());
102 }
103 } else {
104 output()->print_cr("Help unavailable : '%s' : No such command", _cmd.value());
105 }
106 } else {
107 output()->print_cr("The following commands are available:");
108 GrowableArray<const char *>* cmd_list = DCmdFactory::DCmd_list();
109 for (int i = 0; i < cmd_list->length(); i++) {
110 DCmdFactory* factory = DCmdFactory::factory(cmd_list->at(i),
111 strlen(cmd_list->at(i)));
112 if (!factory->is_hidden()) {
113 output()->print_cr("%s%s", factory->name(),
114 factory->is_enabled() ? "" : " [disabled]");
115 }
116 factory = factory->_next;
117 }
118 output()->print_cr("\nFor more information about a specific command use 'help <command>'.");
119 }
120 }
122 int HelpDCmd::num_arguments() {
123 ResourceMark rm;
124 HelpDCmd* dcmd = new HelpDCmd(NULL, false);
125 if (dcmd != NULL) {
126 DCmdMark mark(dcmd);
127 return dcmd->_dcmdparser.num_arguments();
128 } else {
129 return 0;
130 }
131 }
133 void VersionDCmd::execute(TRAPS) {
134 output()->print_cr("%s version %s", Abstract_VM_Version::vm_name(),
135 Abstract_VM_Version::vm_release());
136 JDK_Version jdk_version = JDK_Version::current();
137 if (jdk_version.update_version() > 0) {
138 output()->print_cr("JDK %d.%d_%02d", jdk_version.major_version(),
139 jdk_version.minor_version(), jdk_version.update_version());
140 } else {
141 output()->print_cr("JDK %d.%d", jdk_version.major_version(),
142 jdk_version.minor_version());
143 }
144 }
146 PrintVMFlagsDCmd::PrintVMFlagsDCmd(outputStream* output, bool heap) :
147 DCmdWithParser(output, heap),
148 _all("-all", "Print all flags supported by the VM", "BOOLEAN", false, "false") {
149 _dcmdparser.add_dcmd_option(&_all);
150 }
152 void PrintVMFlagsDCmd::execute(TRAPS) {
153 if (_all.value()) {
154 CommandLineFlags::printFlags(output(), true);
155 } else {
156 CommandLineFlags::printSetFlags(output());
157 }
158 }
160 int PrintVMFlagsDCmd::num_arguments() {
161 ResourceMark rm;
162 PrintVMFlagsDCmd* dcmd = new PrintVMFlagsDCmd(NULL, false);
163 if (dcmd != NULL) {
164 DCmdMark mark(dcmd);
165 return dcmd->_dcmdparser.num_arguments();
166 } else {
167 return 0;
168 }
169 }
171 void PrintSystemPropertiesDCmd::execute(TRAPS) {
172 // load sun.misc.VMSupport
173 Symbol* klass = vmSymbols::sun_misc_VMSupport();
174 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK);
175 instanceKlassHandle ik (THREAD, k);
176 if (ik->should_be_initialized()) {
177 ik->initialize(THREAD);
178 }
179 if (HAS_PENDING_EXCEPTION) {
180 java_lang_Throwable::print(PENDING_EXCEPTION, output());
181 output()->cr();
182 CLEAR_PENDING_EXCEPTION;
183 return;
184 }
186 // invoke the serializePropertiesToByteArray method
187 JavaValue result(T_OBJECT);
188 JavaCallArguments args;
190 Symbol* signature = vmSymbols::serializePropertiesToByteArray_signature();
191 JavaCalls::call_static(&result,
192 ik,
193 vmSymbols::serializePropertiesToByteArray_name(),
194 signature,
195 &args,
196 THREAD);
197 if (HAS_PENDING_EXCEPTION) {
198 java_lang_Throwable::print(PENDING_EXCEPTION, output());
199 output()->cr();
200 CLEAR_PENDING_EXCEPTION;
201 return;
202 }
204 // The result should be a [B
205 oop res = (oop)result.get_jobject();
206 assert(res->is_typeArray(), "just checking");
207 assert(TypeArrayKlass::cast(res->klass())->element_type() == T_BYTE, "just checking");
209 // copy the bytes to the output stream
210 typeArrayOop ba = typeArrayOop(res);
211 jbyte* addr = typeArrayOop(res)->byte_at_addr(0);
212 output()->print_raw((const char*)addr, ba->length());
213 }
215 VMUptimeDCmd::VMUptimeDCmd(outputStream* output, bool heap) :
216 DCmdWithParser(output, heap),
217 _date("-date", "Add a prefix with current date", "BOOLEAN", false, "false") {
218 _dcmdparser.add_dcmd_option(&_date);
219 }
221 void VMUptimeDCmd::execute(TRAPS) {
222 if (_date.value()) {
223 output()->date_stamp(true, "", ": ");
224 }
225 output()->time_stamp().update_to(tty->time_stamp().ticks());
226 output()->stamp();
227 output()->print_cr(" s");
228 }
230 int VMUptimeDCmd::num_arguments() {
231 ResourceMark rm;
232 VMUptimeDCmd* dcmd = new VMUptimeDCmd(NULL, false);
233 if (dcmd != NULL) {
234 DCmdMark mark(dcmd);
235 return dcmd->_dcmdparser.num_arguments();
236 } else {
237 return 0;
238 }
239 }
241 void SystemGCDCmd::execute(TRAPS) {
242 Universe::heap()->collect(GCCause::_java_lang_system_gc);
243 }
245 void RunFinalizationDCmd::execute(TRAPS) {
246 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_System(),
247 true, CHECK);
248 instanceKlassHandle klass(THREAD, k);
249 JavaValue result(T_VOID);
250 JavaCalls::call_static(&result, klass,
251 vmSymbols::run_finalization_name(),
252 vmSymbols::void_method_signature(), CHECK);
253 }
255 #if INCLUDE_SERVICES // Heap dumping supported
256 HeapDumpDCmd::HeapDumpDCmd(outputStream* output, bool heap) :
257 DCmdWithParser(output, heap),
258 _filename("filename","Name of the dump file", "STRING",true),
259 _all("-all", "Dump all objects, including unreachable objects",
260 "BOOLEAN", false, "false") {
261 _dcmdparser.add_dcmd_option(&_all);
262 _dcmdparser.add_dcmd_argument(&_filename);
263 }
265 void HeapDumpDCmd::execute(TRAPS) {
266 // Request a full GC before heap dump if _all is false
267 // This helps reduces the amount of unreachable objects in the dump
268 // and makes it easier to browse.
269 HeapDumper dumper(!_all.value() /* request GC if _all is false*/);
270 int res = dumper.dump(_filename.value());
271 if (res == 0) {
272 output()->print_cr("Heap dump file created");
273 } else {
274 // heap dump failed
275 ResourceMark rm;
276 char* error = dumper.error_as_C_string();
277 if (error == NULL) {
278 output()->print_cr("Dump failed - reason unknown");
279 } else {
280 output()->print_cr("%s", error);
281 }
282 }
283 }
285 int HeapDumpDCmd::num_arguments() {
286 ResourceMark rm;
287 HeapDumpDCmd* dcmd = new HeapDumpDCmd(NULL, false);
288 if (dcmd != NULL) {
289 DCmdMark mark(dcmd);
290 return dcmd->_dcmdparser.num_arguments();
291 } else {
292 return 0;
293 }
294 }
295 #endif // INCLUDE_SERVICES
297 ClassHistogramDCmd::ClassHistogramDCmd(outputStream* output, bool heap) :
298 DCmdWithParser(output, heap),
299 _all("-all", "Inspect all objects, including unreachable objects",
300 "BOOLEAN", false, "false") {
301 _dcmdparser.add_dcmd_option(&_all);
302 }
304 void ClassHistogramDCmd::execute(TRAPS) {
305 VM_GC_HeapInspection heapop(output(),
306 !_all.value() /* request full gc if false */,
307 true /* need_prologue */);
308 VMThread::execute(&heapop);
309 }
311 int ClassHistogramDCmd::num_arguments() {
312 ResourceMark rm;
313 ClassHistogramDCmd* dcmd = new ClassHistogramDCmd(NULL, false);
314 if (dcmd != NULL) {
315 DCmdMark mark(dcmd);
316 return dcmd->_dcmdparser.num_arguments();
317 } else {
318 return 0;
319 }
320 }
322 ThreadDumpDCmd::ThreadDumpDCmd(outputStream* output, bool heap) :
323 DCmdWithParser(output, heap),
324 _locks("-l", "print java.util.concurrent locks", "BOOLEAN", false, "false") {
325 _dcmdparser.add_dcmd_option(&_locks);
326 }
328 void ThreadDumpDCmd::execute(TRAPS) {
329 // thread stacks
330 VM_PrintThreads op1(output(), _locks.value());
331 VMThread::execute(&op1);
333 // JNI global handles
334 VM_PrintJNI op2(output());
335 VMThread::execute(&op2);
337 // Deadlock detection
338 VM_FindDeadlocks op3(output());
339 VMThread::execute(&op3);
340 }
342 int ThreadDumpDCmd::num_arguments() {
343 ResourceMark rm;
344 ThreadDumpDCmd* dcmd = new ThreadDumpDCmd(NULL, false);
345 if (dcmd != NULL) {
346 DCmdMark mark(dcmd);
347 return dcmd->_dcmdparser.num_arguments();
348 } else {
349 return 0;
350 }
351 }
353 // Enhanced JMX Agent support
355 JMXStartRemoteDCmd::JMXStartRemoteDCmd(outputStream *output, bool heap_allocated) :
357 DCmdWithParser(output, heap_allocated),
359 _config_file
360 ("config.file",
361 "set com.sun.management.config.file", "STRING", false),
363 _jmxremote_port
364 ("jmxremote.port",
365 "set com.sun.management.jmxremote.port", "STRING", false),
367 _jmxremote_rmi_port
368 ("jmxremote.rmi.port",
369 "set com.sun.management.jmxremote.rmi.port", "STRING", false),
371 _jmxremote_ssl
372 ("jmxremote.ssl",
373 "set com.sun.management.jmxremote.ssl", "STRING", false),
375 _jmxremote_registry_ssl
376 ("jmxremote.registry.ssl",
377 "set com.sun.management.jmxremote.registry.ssl", "STRING", false),
379 _jmxremote_authenticate
380 ("jmxremote.authenticate",
381 "set com.sun.management.jmxremote.authenticate", "STRING", false),
383 _jmxremote_password_file
384 ("jmxremote.password.file",
385 "set com.sun.management.jmxremote.password.file", "STRING", false),
387 _jmxremote_access_file
388 ("jmxremote.access.file",
389 "set com.sun.management.jmxremote.access.file", "STRING", false),
391 _jmxremote_login_config
392 ("jmxremote.login.config",
393 "set com.sun.management.jmxremote.login.config", "STRING", false),
395 _jmxremote_ssl_enabled_cipher_suites
396 ("jmxremote.ssl.enabled.cipher.suites",
397 "set com.sun.management.jmxremote.ssl.enabled.cipher.suite", "STRING", false),
399 _jmxremote_ssl_enabled_protocols
400 ("jmxremote.ssl.enabled.protocols",
401 "set com.sun.management.jmxremote.ssl.enabled.protocols", "STRING", false),
403 _jmxremote_ssl_need_client_auth
404 ("jmxremote.ssl.need.client.auth",
405 "set com.sun.management.jmxremote.need.client.auth", "STRING", false),
407 _jmxremote_ssl_config_file
408 ("jmxremote.ssl.config.file",
409 "set com.sun.management.jmxremote.ssl_config_file", "STRING", false)
411 {
412 _dcmdparser.add_dcmd_option(&_config_file);
413 _dcmdparser.add_dcmd_option(&_jmxremote_port);
414 _dcmdparser.add_dcmd_option(&_jmxremote_rmi_port);
415 _dcmdparser.add_dcmd_option(&_jmxremote_ssl);
416 _dcmdparser.add_dcmd_option(&_jmxremote_registry_ssl);
417 _dcmdparser.add_dcmd_option(&_jmxremote_authenticate);
418 _dcmdparser.add_dcmd_option(&_jmxremote_password_file);
419 _dcmdparser.add_dcmd_option(&_jmxremote_access_file);
420 _dcmdparser.add_dcmd_option(&_jmxremote_login_config);
421 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_cipher_suites);
422 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_protocols);
423 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_need_client_auth);
424 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_config_file);
425 }
428 int JMXStartRemoteDCmd::num_arguments() {
429 ResourceMark rm;
430 JMXStartRemoteDCmd* dcmd = new JMXStartRemoteDCmd(NULL, false);
431 if (dcmd != NULL) {
432 DCmdMark mark(dcmd);
433 return dcmd->_dcmdparser.num_arguments();
434 } else {
435 return 0;
436 }
437 }
440 void JMXStartRemoteDCmd::execute(TRAPS) {
441 ResourceMark rm(THREAD);
442 HandleMark hm(THREAD);
444 // Load and initialize the sun.management.Agent class
445 // invoke startRemoteManagementAgent(string) method to start
446 // the remote management server.
447 // throw java.lang.NoSuchMethodError if the method doesn't exist
449 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
450 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK);
451 instanceKlassHandle ik (THREAD, k);
453 JavaValue result(T_VOID);
455 // Pass all command line arguments to java as key=value,...
456 // All checks are done on java side
458 int len = 0;
459 stringStream options;
460 char comma[2] = {0,0};
462 // Leave default values on Agent.class side and pass only
463 // agruments explicitly set by user. All arguments passed
464 // to jcmd override properties with the same name set by
465 // command line with -D or by managmenent.properties
466 // file.
467 #define PUT_OPTION(a) \
468 if ( (a).is_set() ){ \
469 options.print("%scom.sun.management.%s=%s", comma, (a).name(), (a).value()); \
470 comma[0] = ','; \
471 }
473 PUT_OPTION(_config_file);
474 PUT_OPTION(_jmxremote_port);
475 PUT_OPTION(_jmxremote_rmi_port);
476 PUT_OPTION(_jmxremote_ssl);
477 PUT_OPTION(_jmxremote_registry_ssl);
478 PUT_OPTION(_jmxremote_authenticate);
479 PUT_OPTION(_jmxremote_password_file);
480 PUT_OPTION(_jmxremote_access_file);
481 PUT_OPTION(_jmxremote_login_config);
482 PUT_OPTION(_jmxremote_ssl_enabled_cipher_suites);
483 PUT_OPTION(_jmxremote_ssl_enabled_protocols);
484 PUT_OPTION(_jmxremote_ssl_need_client_auth);
485 PUT_OPTION(_jmxremote_ssl_config_file);
487 #undef PUT_OPTION
489 Handle str = java_lang_String::create_from_str(options.as_string(), CHECK);
490 JavaCalls::call_static(&result, ik, vmSymbols::startRemoteAgent_name(), vmSymbols::string_void_signature(), str, CHECK);
491 }
493 JMXStartLocalDCmd::JMXStartLocalDCmd(outputStream *output, bool heap_allocated) :
494 DCmd(output, heap_allocated)
495 {
496 // do nothing
497 }
499 void JMXStartLocalDCmd::execute(TRAPS) {
500 ResourceMark rm(THREAD);
501 HandleMark hm(THREAD);
503 // Load and initialize the sun.management.Agent class
504 // invoke startLocalManagementAgent(void) method to start
505 // the local management server
506 // throw java.lang.NoSuchMethodError if method doesn't exist
508 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
509 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK);
510 instanceKlassHandle ik (THREAD, k);
512 JavaValue result(T_VOID);
513 JavaCalls::call_static(&result, ik, vmSymbols::startLocalAgent_name(), vmSymbols::void_method_signature(), CHECK);
514 }
517 void JMXStopRemoteDCmd::execute(TRAPS) {
518 ResourceMark rm(THREAD);
519 HandleMark hm(THREAD);
521 // Load and initialize the sun.management.Agent class
522 // invoke stopRemoteManagementAgent method to stop the
523 // management server
524 // throw java.lang.NoSuchMethodError if method doesn't exist
526 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
527 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK);
528 instanceKlassHandle ik (THREAD, k);
530 JavaValue result(T_VOID);
531 JavaCalls::call_static(&result, ik, vmSymbols::stopRemoteAgent_name(), vmSymbols::void_method_signature(), CHECK);
532 }
