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/*
* Copyright (C) 2016 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_SYMBOLS_H
#define _LIBUNWINDSTACK_SYMBOLS_H
#include <stdint.h>
#include <string>
#include <vector>
namespace unwindstack {
// Forward declaration.
class Memory;
class Symbols {
struct Info {
Info(uint64_t start_offset, uint64_t end_offset, uint64_t str_offset)
: start_offset(start_offset), end_offset(end_offset), str_offset(str_offset) {}
uint64_t start_offset;
uint64_t end_offset;
uint64_t str_offset;
};
public:
Symbols(uint64_t offset, uint64_t size, uint64_t entry_size, uint64_t str_offset,
uint64_t str_size);
virtual ~Symbols() = default;
const Info* GetInfoFromCache(uint64_t addr);
template <typename SymType>
bool GetName(uint64_t addr, Memory* elf_memory, std::string* name, uint64_t* func_offset);
template <typename SymType>
bool GetGlobal(Memory* elf_memory, const std::string& name, uint64_t* memory_address);
void ClearCache() {
symbols_.clear();
cur_offset_ = offset_;
}
private:
uint64_t cur_offset_;
uint64_t offset_;
uint64_t end_;
uint64_t entry_size_;
uint64_t str_offset_;
uint64_t str_end_;
std::vector<Info> symbols_;
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_SYMBOLS_H
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