1 // Copyright 2014 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_BASIC_BLOCK_PROFILER_H_ 6 #define V8_BASIC_BLOCK_PROFILER_H_ 7 8 #include <iosfwd> 9 #include <list> 10 #include <string> 11 #include <vector> 12 13 #include "src/base/macros.h" 14 #include "src/globals.h" 15 16 namespace v8 { 17 namespace internal { 18 19 class BasicBlockProfiler { 20 public: 21 class Data { 22 public: 23 size_t n_blocks() const { return n_blocks_; } 24 const uint32_t* counts() const { return &counts_[0]; } 25 26 void SetCode(std::ostringstream* os); 27 void SetFunctionName(std::ostringstream* os); 28 void SetSchedule(std::ostringstream* os); 29 void SetBlockId(size_t offset, size_t block_id); 30 uint32_t* GetCounterAddress(size_t offset); 31 32 private: 33 friend class BasicBlockProfiler; 34 friend std::ostream& operator<<(std::ostream& os, 35 const BasicBlockProfiler::Data& s); 36 37 explicit Data(size_t n_blocks); 38 ~Data(); 39 40 void ResetCounts(); 41 42 const size_t n_blocks_; 43 std::vector<size_t> block_ids_; 44 std::vector<uint32_t> counts_; 45 std::string function_name_; 46 std::string schedule_; 47 std::string code_; 48 DISALLOW_COPY_AND_ASSIGN(Data); 49 }; 50 51 typedef std::list<Data*> DataList; 52 53 BasicBlockProfiler(); 54 ~BasicBlockProfiler(); 55 56 Data* NewData(size_t n_blocks); 57 void ResetCounts(); 58 59 const DataList* data_list() { return &data_list_; } 60 61 private: 62 friend V8_EXPORT_PRIVATE std::ostream& operator<<( 63 std::ostream& os, const BasicBlockProfiler& s); 64 65 DataList data_list_; 66 67 DISALLOW_COPY_AND_ASSIGN(BasicBlockProfiler); 68 }; 69 70 V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& os, 71 const BasicBlockProfiler& s); 72 std::ostream& operator<<(std::ostream& os, const BasicBlockProfiler::Data& s); 73 74 } // namespace internal 75 } // namespace v8 76 77 #endif // V8_BASIC_BLOCK_PROFILER_H_ 78
