text: /*
   * Copyright (C) 2018 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 _LIBUNWINDSTACK_GLOBAL_H
  #define _LIBUNWINDSTACK_GLOBAL_H
  
  #include <stdint.h>
  
  #include <memory>
  #include <mutex>
  #include <string>
  #include <unordered_map>
  #include <vector>
  
  #include <unwindstack/Elf.h>
  #include <unwindstack/Memory.h>
  
  namespace unwindstack {
  
  // Forward declarations.
  class Maps;
  class MapInfo;
  
  class Global {
   public:
    explicit Global(std::shared_ptr<Memory>& memory);
    Global(std::shared_ptr<Memory>& memory, std::vector<std::string>& search_libs);
    virtual ~Global() = default;
  
    void SetArch(ArchEnum arch);
  
    ArchEnum arch() { return arch_; }
  
   protected:
    bool Searchable(const std::string& name);
    void FindAndReadVariable(Maps* maps, const char* variable);
  
    virtual bool ReadVariableData(uint64_t offset) = 0;
  
    virtual void ProcessArch() = 0;
  
    ArchEnum arch_ = ARCH_UNKNOWN;
  
    std::shared_ptr<Memory> memory_;
    std::vector<std::string> search_libs_;
  };
  
  }  // namespace unwindstack
  
  #endif  // _LIBUNWINDSTACK_GLOBAL_H
  