Method CacheMemoryRegions

src/butil/debug/stack_trace_posix.cc:609–625

Parses /proc/self/maps in order to compile a list of all object file names for the modules that are loaded in the current process. Returns true on success.

  // for the modules that are loaded in the current process.
  // Returns true on success.
  bool CacheMemoryRegions() {
    // Reads /proc/self/maps.
    std::string contents;
    if (!ReadProcMaps(&contents)) {
      LOG(ERROR) << "Failed to read /proc/self/maps";
      return false;
    }

    // Parses /proc/self/maps.
    if (!ParseProcMaps(contents, &regions_)) {
      LOG(ERROR) << "Failed to parse the contents of /proc/self/maps";
      return false;
    }

    is_initialized_ = true;
    return true;
  }

    // FIXME(gejun): Missing O_CLOEXEC from our linux headers. The flag should
    // work on majority machines which installed 2.6.23 or newer kernels. But