/*
 * Copyright (C) 2019 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef SRC_PROFILING_SYMBOLIZER_SYMBOLIZER_H_
#define SRC_PROFILING_SYMBOLIZER_SYMBOLIZER_H_

#include <cstdint>
#include <optional>
#include <string>
#include <vector>

namespace perfetto {
namespace profiling {

struct SymbolizedFrame {
  std::string function_name;
  std::string file_name;
  uint32_t line = 0;
};

class Symbolizer {
 public:
  struct Environment {
    // The kernel version; on Linux, corresponds to `uname -r` output
    // (e.g. 6.12.27-1rodete1-amd64).
    std::optional<std::string> os_release;
  };

  // For each address in the input vector, output a vector of SymbolizedFrame
  // representing the functions corresponding to that address. When inlining
  // occurs, this can be more than one function for a single address.
  //
  // On failure, return an empty vector.
  virtual std::vector<std::vector<SymbolizedFrame>> Symbolize(
      const Environment& env,
      const std::string& mapping_name,
      const std::string& build_id,
      uint64_t load_bias,
      const std::vector<uint64_t>& address) = 0;
  virtual ~Symbolizer();
};

}  // namespace profiling
}  // namespace perfetto

#endif  // SRC_PROFILING_SYMBOLIZER_SYMBOLIZER_H_