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/*
* Copyright (C) 2017 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_JIT_DEBUG_H
#define _LIBUNWINDSTACK_JIT_DEBUG_H
#include <stdint.h>
#include <memory>
#include <mutex>
#include <string>
#include <vector>
namespace unwindstack {
// Forward declarations.
class Elf;
class Maps;
class Memory;
enum ArchEnum : uint8_t;
class JitDebug {
public:
explicit JitDebug(std::shared_ptr<Memory>& memory);
JitDebug(std::shared_ptr<Memory>& memory, std::vector<std::string>& search_libs);
~JitDebug();
Elf* GetElf(Maps* maps, uint64_t pc);
void SetArch(ArchEnum arch);
private:
void Init(Maps* maps);
std::shared_ptr<Memory> memory_;
uint64_t entry_addr_ = 0;
bool initialized_ = false;
std::vector<Elf*> elf_list_;
std::vector<std::string> search_libs_;
std::mutex lock_;
uint64_t (JitDebug::*read_descriptor_func_)(uint64_t) = nullptr;
uint64_t (JitDebug::*read_entry_func_)(uint64_t*, uint64_t*) = nullptr;
uint64_t ReadDescriptor32(uint64_t);
uint64_t ReadDescriptor64(uint64_t);
uint64_t ReadEntry32Pack(uint64_t* start, uint64_t* size);
uint64_t ReadEntry32Pad(uint64_t* start, uint64_t* size);
uint64_t ReadEntry64(uint64_t* start, uint64_t* size);
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_JIT_DEBUG_H
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