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lief-project-LIEF/include/LIEF/Abstract/DebugInfo.hpp
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2026-01-11 22:04:09 +01:00

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/* Copyright 2022 - 2026 R. Thomas
*
* 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 LIEF_DEBUGINFO_H
#define LIEF_DEBUGINFO_H
#include <memory>
#include <cstdint>
#include <string>
#include "LIEF/visibility.h"
#include "LIEF/optional.hpp"
namespace LIEF {
class Binary;
namespace details {
class DebugInfo;
}
/// This class provides a generic interface for accessing debug information
/// from different formats such as DWARF and PDB.
///
/// Users can use this interface to access high-level debug features like
/// resolving function addresses.
///
/// See: LIEF::pdb::DebugInfo, LIEF::dwarf::DebugInfo
class LIEF_API DebugInfo {
public:
friend class Binary;
enum class FORMAT {
UNKNOWN = 0,
DWARF, PDB,
};
DebugInfo(std::unique_ptr<details::DebugInfo> impl);
virtual ~DebugInfo();
virtual FORMAT format() const {
return FORMAT::UNKNOWN;
}
/// This function can be used to **down cast** a DebugInfo instance:
///
/// ```cpp
/// std::unique_ptr<LIEF::Instruction> dbg = bin->debug_info();
/// if (const auto* dwarf = inst->as<LIEF::dwarf::DebugInfo>()) {
/// dwarf->find_function("main");
/// }
/// ```
template<class T>
const T* as() const {
static_assert(std::is_base_of<DebugInfo, T>::value,
"Require Instruction inheritance");
if (T::classof(this)) {
return static_cast<const T*>(this);
}
return nullptr;
}
/// Attempt to resolve the address of the function specified by `name`.
virtual optional<uint64_t> find_function_address(const std::string& name) const = 0;
protected:
std::unique_ptr<details::DebugInfo> impl_;
};
}
#endif