1 /*
2 * Copyright (c) 2012, 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 "classfile/javaClasses.hpp"
27 #include "classfile/vmSymbols.hpp"
28 #include "jfr/jfr.hpp"
29 #include "jfr/dcmd/jfrDcmds.hpp"
30 #include "jfr/jni/jfrJavaSupport.hpp"
31 #include "jfr/recorder/jfrRecorder.hpp"
32 #include "jfr/recorder/service/jfrOptionSet.hpp"
33 #include "memory/resourceArea.hpp"
34 #include "oops/oop.inline.hpp"
35 #include "oops/symbol.hpp"
36 #include "runtime/handles.inline.hpp"
37 #include "services/diagnosticArgument.hpp"
38 #include "services/diagnosticFramework.hpp"
39 #include "utilities/globalDefinitions.hpp"
40
41 #ifdef _WINDOWS
42 #define JFR_FILENAME_EXAMPLE "C:\\Users\\user\\My Recording.jfr"
43 #endif
44
45 #ifdef __APPLE__
46 #define JFR_FILENAME_EXAMPLE "/Users/user/My Recording.jfr"
47 #endif
48
49 #ifndef JFR_FILENAME_EXAMPLE
50 #define JFR_FILENAME_EXAMPLE "/home/user/My Recording.jfr"
51 #endif
52
53 // JNIHandle management
54
55 // ------------------------------------------------------------------
56 // push_jni_handle_block
57 //
58 // Push on a new block of JNI handles.
59 static void push_jni_handle_block(Thread* const thread) {
60 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(thread));
61
62 // Allocate a new block for JNI handles.
63 // Inlined code from jni_PushLocalFrame()
64 JNIHandleBlock* prev_handles = thread->active_handles();
65 JNIHandleBlock* entry_handles = JNIHandleBlock::allocate_block(thread);
66 assert(entry_handles != NULL && prev_handles != NULL, "should not be NULL");
67 entry_handles->set_pop_frame_link(prev_handles); // make sure prev handles get gc'd.
68 thread->set_active_handles(entry_handles);
69 }
70
71 // ------------------------------------------------------------------
72 // pop_jni_handle_block
73 //
74 // Pop off the current block of JNI handles.
75 static void pop_jni_handle_block(Thread* const thread) {
76 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(thread));
77
78 // Release our JNI handle block
79 JNIHandleBlock* entry_handles = thread->active_handles();
80 JNIHandleBlock* prev_handles = entry_handles->pop_frame_link();
81 // restore
82 thread->set_active_handles(prev_handles);
83 entry_handles->set_pop_frame_link(NULL);
84 JNIHandleBlock::release_block(entry_handles, thread); // may block
85 }
86
87 class JNIHandleBlockManager : public StackObj {
88 private:
89 Thread* const _thread;
90 public:
91 JNIHandleBlockManager(Thread* thread) : _thread(thread) {
92 push_jni_handle_block(_thread);
93 }
94
95 ~JNIHandleBlockManager() {
96 pop_jni_handle_block(_thread);
97 }
98 };
99
100 static bool is_disabled(outputStream* output) {
101 if (Jfr::is_disabled()) {
102 if (output != NULL) {
103 output->print_cr("Flight Recorder is disabled.\n");
104 }
105 return true;
106 }
107 return false;
108 }
109
110 static bool is_recorder_instance_created(outputStream* output) {
111 if (!JfrRecorder::is_created()) {
112 if (output != NULL) {
113 output->print_cr("No available recordings.\n");
114 output->print_cr("Use JFR.start to start a recording.\n");
115 }
116 return false;
117 }
118 return true;
119 }
120
121 static bool invalid_state(outputStream* out, TRAPS) {
122 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
123 return is_disabled(out);
124 }
125
126 static void print_pending_exception(outputStream* output, oop throwable) {
127 assert(throwable != NULL, "invariant");
128
129 oop msg = java_lang_Throwable::message(throwable);
130
131 if (msg != NULL) {
132 char* text = java_lang_String::as_utf8_string(msg);
133 output->print_raw_cr(text);
134 }
135 }
136
137 static void print_message(outputStream* output, const char* message) {
138 if (message != NULL) {
139 output->print_raw(message);
140 }
141 }
142
143 static void handle_dcmd_result(outputStream* output,
144 const oop result,
145 const DCmdSource source,
146 TRAPS) {
147 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
148 assert(output != NULL, "invariant");
149 if (HAS_PENDING_EXCEPTION) {
150 print_pending_exception(output, PENDING_EXCEPTION);
151 // Don't clear excption on startup, JVM should fail initialization.
152 if (DCmd_Source_Internal != source) {
153 CLEAR_PENDING_EXCEPTION;
154 }
155 return;
156 }
157
158 assert(!HAS_PENDING_EXCEPTION, "invariant");
159
160 if (result != NULL) {
161 const char* result_chars = java_lang_String::as_utf8_string(result);
162 print_message(output, result_chars);
163 }
164 }
165
166 static oop construct_dcmd_instance(JfrJavaArguments* args, TRAPS) {
167 assert(args != NULL, "invariant");
168 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
169 assert(args->klass() != NULL, "invariant");
170 args->set_name("<init>", CHECK_NULL);
171 args->set_signature("()V", CHECK_NULL);
172 JfrJavaSupport::new_object(args, CHECK_NULL);
173 return (oop)args->result()->get_jobject();
174 }
175
176 JfrDumpFlightRecordingDCmd::JfrDumpFlightRecordingDCmd(outputStream* output,
177 bool heap) : DCmdWithParser(output, heap),
178 _name("name", "Recording name, e.g. \\\"My Recording\\\"", "STRING", false, NULL),
179 _filename("filename", "Copy recording data to file, e.g. \\\"" JFR_FILENAME_EXAMPLE "\\\"", "STRING", false),
180 _maxage("maxage", "Maximum duration to dump, in (s)econds, (m)inutes, (h)ours, or (d)ays, e.g. 60m, or 0 for no limit", "NANOTIME", false, "0"),
181 _maxsize("maxsize", "Maximum amount of bytes to dump, in (M)B or (G)B, e.g. 500M, or 0 for no limit", "MEMORY SIZE", false, "0"),
182 _begin("begin", "Point in time to dump data from, e.g. 09:00, 21:35:00, 2018-06-03T18:12:56.827Z, 2018-06-03T20:13:46.832, -10m, -3h, or -1d", "STRING", false),
183 _end("end", "Point in time to dump data to, e.g. 09:00, 21:35:00, 2018-06-03T18:12:56.827Z, 2018-06-03T20:13:46.832, -10m, -3h, or -1d", "STRING", false),
184 _path_to_gc_roots("path-to-gc-roots", "Collect path to GC roots", "BOOLEAN", false, "false") {
185 _dcmdparser.add_dcmd_option(&_name);
186 _dcmdparser.add_dcmd_option(&_filename);
187 _dcmdparser.add_dcmd_option(&_maxage);
188 _dcmdparser.add_dcmd_option(&_maxsize);
189 _dcmdparser.add_dcmd_option(&_begin);
190 _dcmdparser.add_dcmd_option(&_end);
191 _dcmdparser.add_dcmd_option(&_path_to_gc_roots);
192 };
193
194 int JfrDumpFlightRecordingDCmd::num_arguments() {
195 ResourceMark rm;
196 JfrDumpFlightRecordingDCmd* dcmd = new JfrDumpFlightRecordingDCmd(NULL, false);
197 if (dcmd != NULL) {
198 DCmdMark mark(dcmd);
199 return dcmd->_dcmdparser.num_arguments();
200 }
201 return 0;
202 }
203
204 void JfrDumpFlightRecordingDCmd::execute(DCmdSource source, TRAPS) {
205 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
206
207 if (invalid_state(output(), THREAD) || !is_recorder_instance_created(output())) {
208 return;
209 }
210
211 ResourceMark rm(THREAD);
212 HandleMark hm(THREAD);
213 JNIHandleBlockManager jni_handle_management(THREAD);
214
215 JavaValue result(T_OBJECT);
216 JfrJavaArguments constructor_args(&result);
217 constructor_args.set_klass("jdk/jfr/internal/dcmd/DCmdDump", CHECK);
218 const oop dcmd = construct_dcmd_instance(&constructor_args, CHECK);
219 Handle h_dcmd_instance(THREAD, dcmd);
220 assert(h_dcmd_instance.not_null(), "invariant");
221
222 jstring name = NULL;
223 if (_name.is_set() && _name.value() != NULL) {
224 name = JfrJavaSupport::new_string(_name.value(), CHECK);
225 }
226
227 jstring filepath = NULL;
228 if (_filename.is_set() && _filename.value() != NULL) {
229 filepath = JfrJavaSupport::new_string(_filename.value(), CHECK);
230 }
231
232 jobject maxage = NULL;
233 if (_maxage.is_set()) {
234 maxage = JfrJavaSupport::new_java_lang_Long(_maxage.value()._nanotime, CHECK);
235 }
236
237 jobject maxsize = NULL;
238 if (_maxsize.is_set()) {
239 maxsize = JfrJavaSupport::new_java_lang_Long(_maxsize.value()._size, CHECK);
240 }
241
242 jstring begin = NULL;
243 if (_begin.is_set() && _begin.value() != NULL) {
244 begin = JfrJavaSupport::new_string(_begin.value(), CHECK);
245 }
246
247 jstring end = NULL;
248 if (_end.is_set() && _end.value() != NULL) {
249 end = JfrJavaSupport::new_string(_end.value(), CHECK);
250 }
251
252 jobject path_to_gc_roots = NULL;
253 if (_path_to_gc_roots.is_set()) {
254 path_to_gc_roots = JfrJavaSupport::new_java_lang_Boolean(_path_to_gc_roots.value(), CHECK);
255 }
256
257 static const char klass[] = "jdk/jfr/internal/dcmd/DCmdDump";
258 static const char method[] = "execute";
259 static const char signature[] = "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Long;Ljava/lang/Long;Ljava/lang/String;Ljava/lang/String;Ljava/lang/Boolean;)Ljava/lang/String;";
260
261 JfrJavaArguments execute_args(&result, klass, method, signature, CHECK);
262 execute_args.set_receiver(h_dcmd_instance);
263
264 // arguments
265 execute_args.push_jobject(name);
266 execute_args.push_jobject(filepath);
267 execute_args.push_jobject(maxage);
268 execute_args.push_jobject(maxsize);
269 execute_args.push_jobject(begin);
270 execute_args.push_jobject(end);
271 execute_args.push_jobject(path_to_gc_roots);
272
273 JfrJavaSupport::call_virtual(&execute_args, THREAD);
274 handle_dcmd_result(output(), (oop)result.get_jobject(), source, THREAD);
275 }
276
277 JfrCheckFlightRecordingDCmd::JfrCheckFlightRecordingDCmd(outputStream* output, bool heap) : DCmdWithParser(output, heap),
278 _name("name","Recording name, e.g. \\\"My Recording\\\" or omit to see all recordings","STRING",false, NULL),
279 _verbose("verbose","Print event settings for the recording(s)","BOOLEAN",
280 false, "false") {
281 _dcmdparser.add_dcmd_option(&_name);
282 _dcmdparser.add_dcmd_option(&_verbose);
283 };
284
285 int JfrCheckFlightRecordingDCmd::num_arguments() {
286 ResourceMark rm;
287 JfrCheckFlightRecordingDCmd* dcmd = new JfrCheckFlightRecordingDCmd(NULL, false);
288 if (dcmd != NULL) {
289 DCmdMark mark(dcmd);
290 return dcmd->_dcmdparser.num_arguments();
291 }
292 return 0;
293 }
294
295 void JfrCheckFlightRecordingDCmd::execute(DCmdSource source, TRAPS) {
296 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
297
298 if (invalid_state(output(), THREAD) || !is_recorder_instance_created(output())) {
299 return;
300 }
301
302 ResourceMark rm(THREAD);
303 HandleMark hm(THREAD);
304 JNIHandleBlockManager jni_handle_management(THREAD);
305
306 JavaValue result(T_OBJECT);
307 JfrJavaArguments constructor_args(&result);
308 constructor_args.set_klass("jdk/jfr/internal/dcmd/DCmdCheck", CHECK);
309 const oop dcmd = construct_dcmd_instance(&constructor_args, CHECK);
310 Handle h_dcmd_instance(THREAD, dcmd);
311 assert(h_dcmd_instance.not_null(), "invariant");
312
313 jstring name = NULL;
314 if (_name.is_set() && _name.value() != NULL) {
315 name = JfrJavaSupport::new_string(_name.value(), CHECK);
316 }
317
318 jobject verbose = NULL;
319 if (_verbose.is_set()) {
320 verbose = JfrJavaSupport::new_java_lang_Boolean(_verbose.value(), CHECK);
321 }
322
323 static const char klass[] = "jdk/jfr/internal/dcmd/DCmdCheck";
324 static const char method[] = "execute";
325 static const char signature[] = "(Ljava/lang/String;Ljava/lang/Boolean;)Ljava/lang/String;";
326
327 JfrJavaArguments execute_args(&result, klass, method, signature, CHECK);
328 execute_args.set_receiver(h_dcmd_instance);
329
330 // arguments
331 execute_args.push_jobject(name);
332 execute_args.push_jobject(verbose);
333
334 JfrJavaSupport::call_virtual(&execute_args, THREAD);
335 handle_dcmd_result(output(), (oop)result.get_jobject(), source, THREAD);
336 }
337
338 JfrStartFlightRecordingDCmd::JfrStartFlightRecordingDCmd(outputStream* output,
339 bool heap) : DCmdWithParser(output, heap),
340 _name("name", "Name that can be used to identify recording, e.g. \\\"My Recording\\\"", "STRING", false, NULL),
341 _settings("settings", "Settings file(s), e.g. profile or default. See JRE_HOME/lib/jfr", "STRING SET", false),
342 _delay("delay", "Delay recording start with (s)econds, (m)inutes), (h)ours), or (d)ays, e.g. 5h.", "NANOTIME", false, "0"),
343 _duration("duration", "Duration of recording in (s)econds, (m)inutes, (h)ours, or (d)ays, e.g. 300s.", "NANOTIME", false, "0"),
344 _filename("filename", "Resulting recording filename, e.g. \\\"" JFR_FILENAME_EXAMPLE "\\\"", "STRING", false),
345 _disk("disk", "Recording should be persisted to disk", "BOOLEAN", false),
346 _maxage("maxage", "Maximum time to keep recorded data (on disk) in (s)econds, (m)inutes, (h)ours, or (d)ays, e.g. 60m, or 0 for no limit", "NANOTIME", false, "0"),
347 _maxsize("maxsize", "Maximum amount of bytes to keep (on disk) in (k)B, (M)B or (G)B, e.g. 500M, or 0 for no limit", "MEMORY SIZE", false, "0"),
348 _dump_on_exit("dumponexit", "Dump running recording when JVM shuts down", "BOOLEAN", false),
349 _path_to_gc_roots("path-to-gc-roots", "Collect path to GC roots", "BOOLEAN", false, "false") {
350 _dcmdparser.add_dcmd_option(&_name);
351 _dcmdparser.add_dcmd_option(&_settings);
352 _dcmdparser.add_dcmd_option(&_delay);
353 _dcmdparser.add_dcmd_option(&_duration);
354 _dcmdparser.add_dcmd_option(&_disk);
355 _dcmdparser.add_dcmd_option(&_filename);
356 _dcmdparser.add_dcmd_option(&_maxage);
357 _dcmdparser.add_dcmd_option(&_maxsize);
358 _dcmdparser.add_dcmd_option(&_dump_on_exit);
359 _dcmdparser.add_dcmd_option(&_path_to_gc_roots);
360 };
361
362 int JfrStartFlightRecordingDCmd::num_arguments() {
363 ResourceMark rm;
364 JfrStartFlightRecordingDCmd* dcmd = new JfrStartFlightRecordingDCmd(NULL, false);
365 if (dcmd != NULL) {
366 DCmdMark mark(dcmd);
367 return dcmd->_dcmdparser.num_arguments();
368 }
369 return 0;
370 }
371
372 void JfrStartFlightRecordingDCmd::execute(DCmdSource source, TRAPS) {
373 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
374
375 if (invalid_state(output(), THREAD)) {
376 return;
377 }
378
379 ResourceMark rm(THREAD);
380 HandleMark hm(THREAD);
381 JNIHandleBlockManager jni_handle_management(THREAD);
382
383 JavaValue result(T_OBJECT);
384 JfrJavaArguments constructor_args(&result);
385 constructor_args.set_klass("jdk/jfr/internal/dcmd/DCmdStart", THREAD);
386 const oop dcmd = construct_dcmd_instance(&constructor_args, CHECK);
387 Handle h_dcmd_instance(THREAD, dcmd);
388 assert(h_dcmd_instance.not_null(), "invariant");
389
390 jstring name = NULL;
391 if (_name.is_set() && _name.value() != NULL) {
392 name = JfrJavaSupport::new_string(_name.value(), CHECK);
393 }
394
395 jstring filename = NULL;
396 if (_filename.is_set() && _filename.value() != NULL) {
397 filename = JfrJavaSupport::new_string(_filename.value(), CHECK);
398 }
399
400 jobject maxage = NULL;
401 if (_maxage.is_set()) {
402 maxage = JfrJavaSupport::new_java_lang_Long(_maxage.value()._nanotime, CHECK);
403 }
404
405 jobject maxsize = NULL;
406 if (_maxsize.is_set()) {
407 maxsize = JfrJavaSupport::new_java_lang_Long(_maxsize.value()._size, CHECK);
408 }
409
410 jobject duration = NULL;
411 if (_duration.is_set()) {
412 duration = JfrJavaSupport::new_java_lang_Long(_duration.value()._nanotime, CHECK);
413 }
414
415 jobject delay = NULL;
416 if (_delay.is_set()) {
417 delay = JfrJavaSupport::new_java_lang_Long(_delay.value()._nanotime, CHECK);
418 }
419
420 jobject disk = NULL;
421 if (_disk.is_set()) {
422 disk = JfrJavaSupport::new_java_lang_Boolean(_disk.value(), CHECK);
423 }
424
425 jobject dump_on_exit = NULL;
426 if (_dump_on_exit.is_set()) {
427 dump_on_exit = JfrJavaSupport::new_java_lang_Boolean(_dump_on_exit.value(), CHECK);
428 }
429
430 jobject path_to_gc_roots = NULL;
431 if (_path_to_gc_roots.is_set()) {
432 path_to_gc_roots = JfrJavaSupport::new_java_lang_Boolean(_path_to_gc_roots.value(), CHECK);
433 }
434
435 jobjectArray settings = NULL;
436 if (_settings.is_set()) {
437 const int length = _settings.value()->array()->length();
438 settings = JfrJavaSupport::new_string_array(length, CHECK);
439 assert(settings != NULL, "invariant");
440 for (int i = 0; i < length; ++i) {
441 jobject element = JfrJavaSupport::new_string(_settings.value()->array()->at(i), CHECK);
442 assert(element != NULL, "invariant");
443 JfrJavaSupport::set_array_element(settings, element, i, CHECK);
444 }
445 }
446
447 static const char klass[] = "jdk/jfr/internal/dcmd/DCmdStart";
448 static const char method[] = "execute";
449 static const char signature[] = "(Ljava/lang/String;[Ljava/lang/String;Ljava/lang/Long;"
450 "Ljava/lang/Long;Ljava/lang/Boolean;Ljava/lang/String;"
451 "Ljava/lang/Long;Ljava/lang/Long;Ljava/lang/Boolean;Ljava/lang/Boolean;)Ljava/lang/String;";
452
453 JfrJavaArguments execute_args(&result, klass, method, signature, CHECK);
454 execute_args.set_receiver(h_dcmd_instance);
455
456 // arguments
457 execute_args.push_jobject(name);
458 execute_args.push_jobject(settings);
459 execute_args.push_jobject(delay);
460 execute_args.push_jobject(duration);
461 execute_args.push_jobject(disk);
462 execute_args.push_jobject(filename);
463 execute_args.push_jobject(maxage);
464 execute_args.push_jobject(maxsize);
465 execute_args.push_jobject(dump_on_exit);
466 execute_args.push_jobject(path_to_gc_roots);
467
468 JfrJavaSupport::call_virtual(&execute_args, THREAD);
469 handle_dcmd_result(output(), (oop)result.get_jobject(), source, THREAD);
470 }
471
472 JfrStopFlightRecordingDCmd::JfrStopFlightRecordingDCmd(outputStream* output,
473 bool heap) : DCmdWithParser(output, heap),
474 _name("name", "Recording text,.e.g \\\"My Recording\\\"", "STRING", true, NULL),
475 _filename("filename", "Copy recording data to file, e.g. \\\"" JFR_FILENAME_EXAMPLE "\\\"", "STRING", false, NULL) {
476 _dcmdparser.add_dcmd_option(&_name);
477 _dcmdparser.add_dcmd_option(&_filename);
478 };
479
480 int JfrStopFlightRecordingDCmd::num_arguments() {
481 ResourceMark rm;
482 JfrStopFlightRecordingDCmd* dcmd = new JfrStopFlightRecordingDCmd(NULL, false);
483 if (dcmd != NULL) {
484 DCmdMark mark(dcmd);
485 return dcmd->_dcmdparser.num_arguments();
486 }
487 return 0;
488 }
489
490 void JfrStopFlightRecordingDCmd::execute(DCmdSource source, TRAPS) {
491 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
492
493 if (invalid_state(output(), THREAD) || !is_recorder_instance_created(output())) {
494 return;
495 }
496
497 ResourceMark rm(THREAD);
498 HandleMark hm(THREAD);
499 JNIHandleBlockManager jni_handle_management(THREAD);
500
501 JavaValue result(T_OBJECT);
502 JfrJavaArguments constructor_args(&result);
503 constructor_args.set_klass("jdk/jfr/internal/dcmd/DCmdStop", CHECK);
504 const oop dcmd = construct_dcmd_instance(&constructor_args, CHECK);
505 Handle h_dcmd_instance(THREAD, dcmd);
506 assert(h_dcmd_instance.not_null(), "invariant");
507
508 jstring name = NULL;
509 if (_name.is_set() && _name.value() != NULL) {
510 name = JfrJavaSupport::new_string(_name.value(), CHECK);
511 }
512
513 jstring filepath = NULL;
514 if (_filename.is_set() && _filename.value() != NULL) {
515 filepath = JfrJavaSupport::new_string(_filename.value(), CHECK);
516 }
517
518 static const char klass[] = "jdk/jfr/internal/dcmd/DCmdStop";
519 static const char method[] = "execute";
520 static const char signature[] = "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;";
521
522 JfrJavaArguments execute_args(&result, klass, method, signature, CHECK);
523 execute_args.set_receiver(h_dcmd_instance);
524
525 // arguments
526 execute_args.push_jobject(name);
527 execute_args.push_jobject(filepath);
528
529 JfrJavaSupport::call_virtual(&execute_args, THREAD);
530 handle_dcmd_result(output(), (oop)result.get_jobject(), source, THREAD);
531 }
532
533 JfrConfigureFlightRecorderDCmd::JfrConfigureFlightRecorderDCmd(outputStream* output,
534 bool heap) : DCmdWithParser(output, heap),
535 _repository_path("repositorypath", "Path to repository,.e.g \\\"My Repository\\\"", "STRING", false, NULL),
536 _dump_path("dumppath", "Path to dump,.e.g \\\"My Dump path\\\"", "STRING", false, NULL),
537 _stack_depth("stackdepth", "Stack Depth", "JLONG", false, "64"),
538 _global_buffer_count("globalbuffercount", "Number of global buffers,", "JLONG", false, "32"),
539 _global_buffer_size("globalbuffersize", "Size of a global buffers,", "JLONG", false, "524288"),
540 _thread_buffer_size("thread_buffer_size", "Size of a thread buffer", "JLONG", false, "8192"),
541 _memory_size("memorysize", "Overall memory size, ", "JLONG", false, "16777216"),
542 _max_chunk_size("maxchunksize", "Size of an individual disk chunk", "JLONG", false, "12582912"),
543 _sample_threads("samplethreads", "Activate Thread sampling", "BOOLEAN", false, "true") {
544 _dcmdparser.add_dcmd_option(&_repository_path);
545 _dcmdparser.add_dcmd_option(&_dump_path);
546 _dcmdparser.add_dcmd_option(&_stack_depth);
547 _dcmdparser.add_dcmd_option(&_global_buffer_count);
548 _dcmdparser.add_dcmd_option(&_global_buffer_size);
549 _dcmdparser.add_dcmd_option(&_thread_buffer_size);
550 _dcmdparser.add_dcmd_option(&_memory_size);
551 _dcmdparser.add_dcmd_option(&_max_chunk_size);
552 _dcmdparser.add_dcmd_option(&_sample_threads);
553 };
554
555 int JfrConfigureFlightRecorderDCmd::num_arguments() {
556 ResourceMark rm;
557 JfrConfigureFlightRecorderDCmd* dcmd = new JfrConfigureFlightRecorderDCmd(NULL, false);
558 if (dcmd != NULL) {
559 DCmdMark mark(dcmd);
560 return dcmd->_dcmdparser.num_arguments();
561 }
562 return 0;
563 }
564
565 void JfrConfigureFlightRecorderDCmd::execute(DCmdSource source, TRAPS) {
566 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
567
568 if (invalid_state(output(), THREAD)) {
569 return;
570 }
571
572 ResourceMark rm(THREAD);
573 HandleMark hm(THREAD);
574 JNIHandleBlockManager jni_handle_management(THREAD);
575
576 JavaValue result(T_OBJECT);
577 JfrJavaArguments constructor_args(&result);
578 constructor_args.set_klass("jdk/jfr/internal/dcmd/DCmdConfigure", CHECK);
579 const oop dcmd = construct_dcmd_instance(&constructor_args, CHECK);
580 Handle h_dcmd_instance(THREAD, dcmd);
581 assert(h_dcmd_instance.not_null(), "invariant");
582
583 jstring repository_path = NULL;
584 if (_repository_path.is_set() && _repository_path.value() != NULL) {
585 repository_path = JfrJavaSupport::new_string(_repository_path.value(), CHECK);
586 }
587
588 jstring dump_path = NULL;
589 if (_dump_path.is_set() && _dump_path.value() != NULL) {
590 dump_path = JfrJavaSupport::new_string(_dump_path.value(), CHECK);
591 }
592
593 jobject stack_depth = NULL;
594 if (_stack_depth.is_set()) {
595 stack_depth = JfrJavaSupport::new_java_lang_Integer((jint)_stack_depth.value(), CHECK);
596 }
597
598 jobject global_buffer_count = NULL;
599 if (_global_buffer_count.is_set()) {
600 global_buffer_count = JfrJavaSupport::new_java_lang_Long(_global_buffer_count.value(), CHECK);
601 }
602
603 jobject global_buffer_size = NULL;
604 if (_global_buffer_size.is_set()) {
605 global_buffer_size = JfrJavaSupport::new_java_lang_Long(_global_buffer_size.value(), CHECK);
606 }
607
608 jobject thread_buffer_size = NULL;
609 if (_thread_buffer_size.is_set()) {
610 thread_buffer_size = JfrJavaSupport::new_java_lang_Long(_thread_buffer_size.value(), CHECK);
611 }
612
613 jobject max_chunk_size = NULL;
614 if (_max_chunk_size.is_set()) {
615 max_chunk_size = JfrJavaSupport::new_java_lang_Long(_max_chunk_size.value(), CHECK);
616 }
617
618 jobject memory_size = NULL;
619 if (_memory_size.is_set()) {
620 memory_size = JfrJavaSupport::new_java_lang_Long(_memory_size.value(), CHECK);
621 }
622
623 jobject sample_threads = NULL;
624 if (_sample_threads.is_set()) {
625 sample_threads = JfrJavaSupport::new_java_lang_Boolean(_sample_threads.value(), CHECK);
626 }
627
628 static const char klass[] = "jdk/jfr/internal/dcmd/DCmdConfigure";
629 static const char method[] = "execute";
630 static const char signature[] = "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Integer;"
631 "Ljava/lang/Long;Ljava/lang/Long;Ljava/lang/Long;Ljava/lang/Long;"
632 "Ljava/lang/Long;Ljava/lang/Boolean;)Ljava/lang/String;";
633
634 JfrJavaArguments execute_args(&result, klass, method, signature, CHECK);
635 execute_args.set_receiver(h_dcmd_instance);
636
637 // params
638 execute_args.push_jobject(repository_path);
639 execute_args.push_jobject(dump_path);
640 execute_args.push_jobject(stack_depth);
641 execute_args.push_jobject(global_buffer_count);
642 execute_args.push_jobject(global_buffer_size);
643 execute_args.push_jobject(thread_buffer_size);
644 execute_args.push_jobject(memory_size);
645 execute_args.push_jobject(max_chunk_size);
646 execute_args.push_jobject(sample_threads);
647
648 JfrJavaSupport::call_virtual(&execute_args, THREAD);
649 handle_dcmd_result(output(), (oop)result.get_jobject(), source, THREAD);
650 }
651
652 bool register_jfr_dcmds() {
653 uint32_t full_export = DCmd_Source_Internal | DCmd_Source_AttachAPI | DCmd_Source_MBean;
654 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JfrCheckFlightRecordingDCmd>(full_export, true, false));
655 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JfrDumpFlightRecordingDCmd>(full_export, true, false));
656 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JfrStartFlightRecordingDCmd>(full_export, true, false));
657 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JfrStopFlightRecordingDCmd>(full_export, true, false));
658 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JfrConfigureFlightRecorderDCmd>(full_export, true, false));
659
660 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JfrUnlockCommercialFeaturesDCmd>(full_export, true, false));
661 return true;
662 }
663