symbolizer.h

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// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#ifndef V8_PROFILER_SYMBOLIZER_H_
#define V8_PROFILER_SYMBOLIZER_H_
 
#include "src/base/macros.h"
#include "src/profiler/profile-generator.h"
 
namespace v8 {
namespace internal {
 
class CodeEntry;
class InstructionStreamMap;
 
class V8_EXPORT_PRIVATE Symbolizer {
 public:
  explicit Symbolizer(InstructionStreamMap* instruction_stream_map);
  Symbolizer(const Symbolizer&) = delete;
  Symbolizer& operator=(const Symbolizer&) = delete;
 
  struct SymbolizedSample {
    ProfileStackTrace stack_trace;
    int src_line;
  };
 
  // Use the InstructionStreamMap to turn the raw addresses recorded in the
  // sample into code/function names.
  SymbolizedSample SymbolizeTickSample(const TickSample& sample);
 
  InstructionStreamMap* instruction_stream_map() { return code_map_; }
 
 private:
  CodeEntry* FindEntry(Address address,
                       Address* out_instruction_start = nullptr);
 
  InstructionStreamMap* const code_map_;
};
 
}  // namespace internal
}  // namespace v8
 
#endif  // V8_PROFILER_SYMBOLIZER_H_