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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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144 V(STORE_IC_TAG, "StoreIC") \ | 144 V(STORE_IC_TAG, "StoreIC") \ |
145 V(STORE_POLYMORPHIC_IC_TAG, "StorePolymorphicIC") \ | 145 V(STORE_POLYMORPHIC_IC_TAG, "StorePolymorphicIC") \ |
146 V(STUB_TAG, "Stub") \ | 146 V(STUB_TAG, "Stub") \ |
147 V(NATIVE_FUNCTION_TAG, "Function") \ | 147 V(NATIVE_FUNCTION_TAG, "Function") \ |
148 V(NATIVE_LAZY_COMPILE_TAG, "LazyCompile") \ | 148 V(NATIVE_LAZY_COMPILE_TAG, "LazyCompile") \ |
149 V(NATIVE_SCRIPT_TAG, "Script") | 149 V(NATIVE_SCRIPT_TAG, "Script") |
150 // Note that 'NATIVE_' cases for functions and scripts are mapped onto | 150 // Note that 'NATIVE_' cases for functions and scripts are mapped onto |
151 // original tags when writing to the log. | 151 // original tags when writing to the log. |
152 | 152 |
153 | 153 |
| 154 class JitLogger; |
154 class LowLevelLogger; | 155 class LowLevelLogger; |
155 class Sampler; | 156 class Sampler; |
156 | 157 |
157 | 158 |
158 class Logger { | 159 class Logger { |
159 public: | 160 public: |
160 #define DECLARE_ENUM(enum_item, ignore) enum_item, | 161 #define DECLARE_ENUM(enum_item, ignore) enum_item, |
161 enum LogEventsAndTags { | 162 enum LogEventsAndTags { |
162 LOG_EVENTS_AND_TAGS_LIST(DECLARE_ENUM) | 163 LOG_EVENTS_AND_TAGS_LIST(DECLARE_ENUM) |
163 NUMBER_OF_LOG_EVENTS | 164 NUMBER_OF_LOG_EVENTS |
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330 | 331 |
331 void RegExpCompileEvent(Handle<JSRegExp> regexp, bool in_cache); | 332 void RegExpCompileEvent(Handle<JSRegExp> regexp, bool in_cache); |
332 | 333 |
333 // Log an event reported from generated code | 334 // Log an event reported from generated code |
334 void LogRuntime(Vector<const char> format, JSArray* args); | 335 void LogRuntime(Vector<const char> format, JSArray* args); |
335 | 336 |
336 bool is_logging() { | 337 bool is_logging() { |
337 return logging_nesting_ > 0; | 338 return logging_nesting_ > 0; |
338 } | 339 } |
339 | 340 |
340 bool is_code_event_handler_enabled() { | |
341 return code_event_handler_ != NULL; | |
342 } | |
343 | |
344 bool is_logging_code_events() { | 341 bool is_logging_code_events() { |
345 return is_logging() || code_event_handler_ != NULL; | 342 return is_logging() || jit_logger_ != NULL; |
346 } | 343 } |
347 | 344 |
348 // Pause/Resume collection of profiling data. | 345 // Pause/Resume collection of profiling data. |
349 // When data collection is paused, CPU Tick events are discarded until | 346 // When data collection is paused, CPU Tick events are discarded until |
350 // data collection is Resumed. | 347 // data collection is Resumed. |
351 void PauseProfiler(); | 348 void PauseProfiler(); |
352 void ResumeProfiler(); | 349 void ResumeProfiler(); |
353 bool IsProfilerPaused(); | 350 bool IsProfilerPaused(); |
354 | 351 |
355 void LogExistingFunction(Handle<SharedFunctionInfo> shared, | 352 void LogExistingFunction(Handle<SharedFunctionInfo> shared, |
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376 // Callback from Log, stops profiling in case of insufficient resources. | 373 // Callback from Log, stops profiling in case of insufficient resources. |
377 void LogFailure(); | 374 void LogFailure(); |
378 | 375 |
379 private: | 376 private: |
380 class NameBuffer; | 377 class NameBuffer; |
381 class NameMap; | 378 class NameMap; |
382 | 379 |
383 explicit Logger(Isolate* isolate); | 380 explicit Logger(Isolate* isolate); |
384 ~Logger(); | 381 ~Logger(); |
385 | 382 |
386 // Issue code notifications. | |
387 void IssueCodeAddedEvent(Code* code, | |
388 Script* script, | |
389 const char* name, | |
390 size_t name_len); | |
391 void IssueCodeMovedEvent(Address from, Address to); | |
392 void IssueCodeRemovedEvent(Address from); | |
393 void IssueAddCodeLinePosInfoEvent(void* jit_handler_data, | |
394 int pc_offset, | |
395 int position, | |
396 JitCodeEvent::PositionType position_Type); | |
397 void* IssueStartCodePosInfoEvent(); | |
398 void IssueEndCodePosInfoEvent(Code* code, void* jit_handler_data); | |
399 // Emits the profiler's first message. | 383 // Emits the profiler's first message. |
400 void ProfilerBeginEvent(); | 384 void ProfilerBeginEvent(); |
401 | 385 |
402 // Emits callback event messages. | 386 // Emits callback event messages. |
403 void CallbackEventInternal(const char* prefix, | 387 void CallbackEventInternal(const char* prefix, |
404 Name* name, | 388 Name* name, |
405 Address entry_point); | 389 Address entry_point); |
406 | 390 |
407 // Internal configurable move event. | 391 // Internal configurable move event. |
408 void MoveEventInternal(LogEventsAndTags event, Address from, Address to); | 392 void MoveEventInternal(LogEventsAndTags event, Address from, Address to); |
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468 template <StateTag Tag> friend class VMState; | 452 template <StateTag Tag> friend class VMState; |
469 | 453 |
470 friend class LoggerTestHelper; | 454 friend class LoggerTestHelper; |
471 | 455 |
472 | 456 |
473 int logging_nesting_; | 457 int logging_nesting_; |
474 int cpu_profiler_nesting_; | 458 int cpu_profiler_nesting_; |
475 | 459 |
476 Log* log_; | 460 Log* log_; |
477 LowLevelLogger* ll_logger_; | 461 LowLevelLogger* ll_logger_; |
| 462 JitLogger* jit_logger_; |
478 | 463 |
479 NameBuffer* name_buffer_; | 464 NameBuffer* name_buffer_; |
480 | 465 |
481 NameMap* address_to_name_map_; | 466 NameMap* address_to_name_map_; |
482 | 467 |
483 // Guards against multiple calls to TearDown() that can happen in some tests. | 468 // Guards against multiple calls to TearDown() that can happen in some tests. |
484 // 'true' between SetUp() and TearDown(). | 469 // 'true' between SetUp() and TearDown(). |
485 bool is_initialized_; | 470 bool is_initialized_; |
486 | 471 |
487 // The code event handler - if any. | |
488 JitCodeEventHandler code_event_handler_; | |
489 | |
490 // Support for 'incremental addresses' in compressed logs: | 472 // Support for 'incremental addresses' in compressed logs: |
491 // LogMessageBuilder::AppendAddress(Address addr) | 473 // LogMessageBuilder::AppendAddress(Address addr) |
492 Address last_address_; | 474 Address last_address_; |
493 // Logger::TickEvent(...) | 475 // Logger::TickEvent(...) |
494 Address prev_sp_; | 476 Address prev_sp_; |
495 Address prev_function_; | 477 Address prev_function_; |
496 // Logger::MoveEventInternal(...) | 478 // Logger::MoveEventInternal(...) |
497 Address prev_to_; | 479 Address prev_to_; |
498 // Logger::FunctionCreateEvent(...) | 480 // Logger::FunctionCreateEvent(...) |
499 Address prev_code_; | 481 Address prev_code_; |
500 | 482 |
501 int64_t epoch_; | 483 int64_t epoch_; |
502 | 484 |
503 friend class CpuProfiler; | 485 friend class CpuProfiler; |
504 }; | 486 }; |
505 | 487 |
506 | 488 |
507 } } // namespace v8::internal | 489 } } // namespace v8::internal |
508 | 490 |
509 | 491 |
510 #endif // V8_LOG_H_ | 492 #endif // V8_LOG_H_ |
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