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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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24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 #ifndef V8_LOG_H_ | 28 #ifndef V8_LOG_H_ |
29 #define V8_LOG_H_ | 29 #define V8_LOG_H_ |
30 | 30 |
31 #include "allocation.h" | 31 #include "allocation.h" |
32 #include "objects.h" | 32 #include "objects.h" |
33 #include "platform.h" | 33 #include "platform.h" |
34 #include "log-utils.h" | |
35 | 34 |
36 namespace v8 { | 35 namespace v8 { |
37 namespace internal { | 36 namespace internal { |
38 | 37 |
39 // Logger is used for collecting logging information from V8 during | 38 // Logger is used for collecting logging information from V8 during |
40 // execution. The result is dumped to a file. | 39 // execution. The result is dumped to a file. |
41 // | 40 // |
42 // Available command line flags: | 41 // Available command line flags: |
43 // | 42 // |
44 // --log | 43 // --log |
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64 // --log-regexp implies --log. | 63 // --log-regexp implies --log. |
65 // | 64 // |
66 // --logfile <filename> | 65 // --logfile <filename> |
67 // Specify the name of the logfile, default is "v8.log". | 66 // Specify the name of the logfile, default is "v8.log". |
68 // | 67 // |
69 // --prof | 68 // --prof |
70 // Collect statistical profiling information (ticks), default is off. The | 69 // Collect statistical profiling information (ticks), default is off. The |
71 // tick profiler requires code events, so --prof implies --log-code. | 70 // tick profiler requires code events, so --prof implies --log-code. |
72 | 71 |
73 // Forward declarations. | 72 // Forward declarations. |
74 class LogMessageBuilder; | 73 class CompilationInfo; |
| 74 class CpuProfiler; |
| 75 class Isolate; |
| 76 class Log; |
| 77 class PositionsRecorder; |
75 class Profiler; | 78 class Profiler; |
76 class Semaphore; | 79 class Semaphore; |
| 80 class Ticker; |
77 struct TickSample; | 81 struct TickSample; |
78 class Ticker; | |
79 class Isolate; | |
80 class PositionsRecorder; | |
81 class CpuProfiler; | |
82 class CompilationInfo; | |
83 | 82 |
84 #undef LOG | 83 #undef LOG |
85 #define LOG(isolate, Call) \ | 84 #define LOG(isolate, Call) \ |
86 do { \ | 85 do { \ |
87 v8::internal::Logger* logger = \ | 86 v8::internal::Logger* logger = \ |
88 (isolate)->logger(); \ | 87 (isolate)->logger(); \ |
89 if (logger->is_logging()) \ | 88 if (logger->is_logging()) \ |
90 logger->Call; \ | 89 logger->Call; \ |
91 } while (false) | 90 } while (false) |
92 | 91 |
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402 | 401 |
403 // Helper method. It resets name_buffer_ and add tag name into it. | 402 // Helper method. It resets name_buffer_ and add tag name into it. |
404 void InitNameBuffer(LogEventsAndTags tag); | 403 void InitNameBuffer(LogEventsAndTags tag); |
405 | 404 |
406 // Helper method. It push recorded buffer into different handlers. | 405 // Helper method. It push recorded buffer into different handlers. |
407 void LogRecordedBuffer(Code*, SharedFunctionInfo*); | 406 void LogRecordedBuffer(Code*, SharedFunctionInfo*); |
408 | 407 |
409 // Helper method. It dumps name into name_buffer_. | 408 // Helper method. It dumps name into name_buffer_. |
410 void AppendName(Name* name); | 409 void AppendName(Name* name); |
411 | 410 |
412 // Appends standard code header. | |
413 void AppendCodeCreateHeader(LogMessageBuilder*, LogEventsAndTags, Code*); | |
414 | |
415 // Appends symbol for the name. | |
416 void AppendSymbolName(LogMessageBuilder*, Symbol*); | |
417 | |
418 void RegisterSnapshotCodeName(Code* code, const char* name, int name_size); | 411 void RegisterSnapshotCodeName(Code* code, const char* name, int name_size); |
419 | 412 |
420 // Emits a profiler tick event. Used by the profiler thread. | 413 // Emits a profiler tick event. Used by the profiler thread. |
421 void TickEvent(TickSample* sample, bool overflow); | 414 void TickEvent(TickSample* sample, bool overflow); |
422 | 415 |
423 void ApiEvent(const char* name, ...); | 416 void ApiEvent(const char* name, ...); |
424 | 417 |
425 // Logs a StringEvent regardless of whether FLAG_log is true. | 418 // Logs a StringEvent regardless of whether FLAG_log is true. |
426 void UncheckedStringEvent(const char* name, const char* value); | 419 void UncheckedStringEvent(const char* name, const char* value); |
427 | 420 |
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439 // of samples. | 432 // of samples. |
440 Profiler* profiler_; | 433 Profiler* profiler_; |
441 | 434 |
442 // An array of log events names. | 435 // An array of log events names. |
443 const char* const* log_events_; | 436 const char* const* log_events_; |
444 | 437 |
445 // Internal implementation classes with access to | 438 // Internal implementation classes with access to |
446 // private members. | 439 // private members. |
447 friend class EventLog; | 440 friend class EventLog; |
448 friend class Isolate; | 441 friend class Isolate; |
449 friend class LogMessageBuilder; | |
450 friend class TimeLog; | 442 friend class TimeLog; |
451 friend class Profiler; | 443 friend class Profiler; |
452 template <StateTag Tag> friend class VMState; | 444 template <StateTag Tag> friend class VMState; |
453 | 445 |
454 friend class LoggerTestHelper; | 446 friend class LoggerTestHelper; |
455 | 447 |
456 | 448 |
457 int logging_nesting_; | 449 int logging_nesting_; |
458 int cpu_profiler_nesting_; | 450 int cpu_profiler_nesting_; |
459 | 451 |
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483 int64_t epoch_; | 475 int64_t epoch_; |
484 | 476 |
485 friend class CpuProfiler; | 477 friend class CpuProfiler; |
486 }; | 478 }; |
487 | 479 |
488 | 480 |
489 } } // namespace v8::internal | 481 } } // namespace v8::internal |
490 | 482 |
491 | 483 |
492 #endif // V8_LOG_H_ | 484 #endif // V8_LOG_H_ |
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