Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2013 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef V8_ARM64_INSTRUMENT_ARM64_H_ |
| 6 | #define V8_ARM64_INSTRUMENT_ARM64_H_ |
| 7 | |
| 8 | #include "src/globals.h" |
| 9 | #include "src/utils.h" |
| 10 | |
| 11 | #include "src/arm64/constants-arm64.h" |
| 12 | #include "src/arm64/decoder-arm64.h" |
| 13 | |
| 14 | namespace v8 { |
| 15 | namespace internal { |
| 16 | |
| 17 | const int kCounterNameMaxLength = 256; |
| 18 | const uint64_t kDefaultInstrumentationSamplingPeriod = 1 << 22; |
| 19 | |
| 20 | |
| 21 | enum InstrumentState { |
| 22 | InstrumentStateDisable = 0, |
| 23 | InstrumentStateEnable = 1 |
| 24 | }; |
| 25 | |
| 26 | |
| 27 | enum CounterType { |
| 28 | Gauge = 0, // Gauge counters reset themselves after reading. |
| 29 | Cumulative = 1 // Cumulative counters keep their value after reading. |
| 30 | }; |
| 31 | |
| 32 | |
| 33 | class Counter { |
| 34 | public: |
| 35 | explicit Counter(const char* name, CounterType type = Gauge); |
| 36 | |
| 37 | void Increment(); |
| 38 | void Enable(); |
| 39 | void Disable(); |
| 40 | bool IsEnabled(); |
| 41 | uint64_t count(); |
| 42 | const char* name(); |
| 43 | CounterType type(); |
| 44 | |
| 45 | private: |
| 46 | char name_[kCounterNameMaxLength]; |
| 47 | uint64_t count_; |
| 48 | bool enabled_; |
| 49 | CounterType type_; |
| 50 | }; |
| 51 | |
| 52 | |
| 53 | class Instrument: public DecoderVisitor { |
| 54 | public: |
| 55 | explicit Instrument(const char* datafile = NULL, |
| 56 | uint64_t sample_period = kDefaultInstrumentationSamplingPeriod); |
| 57 | ~Instrument(); |
| 58 | |
| 59 | // Declare all Visitor functions. |
| 60 | #define DECLARE(A) void Visit##A(Instruction* instr); |
| 61 | VISITOR_LIST(DECLARE) |
| 62 | #undef DECLARE |
| 63 | |
| 64 | private: |
| 65 | void Update(); |
| 66 | void Enable(); |
| 67 | void Disable(); |
| 68 | void DumpCounters(); |
| 69 | void DumpCounterNames(); |
| 70 | void DumpEventMarker(unsigned marker); |
| 71 | void HandleInstrumentationEvent(unsigned event); |
| 72 | Counter* GetCounter(const char* name); |
| 73 | |
| 74 | void InstrumentLoadStore(Instruction* instr); |
| 75 | void InstrumentLoadStorePair(Instruction* instr); |
| 76 | |
| 77 | std::list<Counter*> counters_; |
| 78 | |
| 79 | FILE *output_stream_; |
| 80 | uint64_t sample_period_; |
| 81 | }; |
| 82 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 83 | } // namespace internal |
| 84 | } // namespace v8 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 85 | |
| 86 | #endif // V8_ARM64_INSTRUMENT_ARM64_H_ |