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//===- DWARFFile.h ----------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_DWARFLINKERPARALLEL_DWARFFILE_H
#define LLVM_DWARFLINKERPARALLEL_DWARFFILE_H
#include "llvm/ADT/StringRef.h"
#include "llvm/DWARFLinkerParallel/AddressesMap.h"
#include "llvm/DebugInfo/DWARF/DWARFContext.h"
#include "llvm/Support/Endian.h"
#include <functional>
#include <memory>
namespace llvm {
namespace dwarflinker_parallel {
/// This class represents DWARF information for source file
/// and it's address map.
///
/// May be used asynchroniously for reading.
class DWARFFile {
public:
using UnloadCallbackTy = std::function<void(StringRef FileName)>;
DWARFFile(StringRef Name, std::unique_ptr<DWARFContext> Dwarf,
std::unique_ptr<AddressesMap> Addresses,
const std::vector<std::string> &Warnings,
UnloadCallbackTy UnloadFunc = nullptr)
: FileName(Name), Dwarf(std::move(Dwarf)),
Addresses(std::move(Addresses)), Warnings(Warnings),
UnloadFunc(UnloadFunc) {
if (this->Dwarf)
Endianess = this->Dwarf->isLittleEndian() ? support::endianness::little
: support::endianness::big;
}
/// Object file name.
StringRef FileName;
/// Source DWARF information.
std::unique_ptr<DWARFContext> Dwarf;
/// Helpful address information(list of valid address ranges, relocations).
std::unique_ptr<AddressesMap> Addresses;
/// Warnings for object file.
const std::vector<std::string> &Warnings;
/// Endiannes of source DWARF information.
support::endianness Endianess = support::endianness::little;
/// Callback to the module keeping object file to unload.
UnloadCallbackTy UnloadFunc;
/// Unloads object file and corresponding AddressesMap and Dwarf Context.
void unload() {
Addresses.reset();
Dwarf.reset();
if (UnloadFunc)
UnloadFunc(FileName);
}
};
} // end namespace dwarflinker_parallel
} // end namespace llvm
#endif // LLVM_DWARFLINKERPARALLEL_DWARFFILE_H
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