absl::string_view BackwardsTrace::addrMapping(bool setup) {

  static absl::string_view value = [setup]() -> absl::string_view {

    if (!setup) {

      return "";

    }

#ifndef WIN32

    std::ifstream maps("/proc/self/maps");

    if (maps.fail()) {

    std::string line;

    while (std::getline(maps, line)) {

      std::vector<absl::string_view> parts = absl::StrSplit(line, ' ');

      if (parts[1] == "r-xp") {

        static std::string result = absl::StrCat(parts[0], " ", parts.back());

        return result;

      }

    }

  }();

  return value;

}

void BackwardsTrace::setLogToStderr(bool log_to_stderr) { log_to_stderr_ = log_to_stderr; }