1e8d8bef9SDimitry Andric //===- DWARF.h -----------------------------------------------*- C++ -*-===// 2e8d8bef9SDimitry Andric // 3e8d8bef9SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4e8d8bef9SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5e8d8bef9SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6e8d8bef9SDimitry Andric // 7e8d8bef9SDimitry Andric //===-------------------------------------------------------------------===// 8e8d8bef9SDimitry Andric 9e8d8bef9SDimitry Andric #ifndef LLD_MACHO_DWARF_H 10e8d8bef9SDimitry Andric #define LLD_MACHO_DWARF_H 11e8d8bef9SDimitry Andric 12e8d8bef9SDimitry Andric #include "llvm/ADT/StringRef.h" 13e8d8bef9SDimitry Andric #include "llvm/DebugInfo/DWARF/DWARFObject.h" 14e8d8bef9SDimitry Andric 15*bdd1243dSDimitry Andric namespace lld::macho { 16e8d8bef9SDimitry Andric 17e8d8bef9SDimitry Andric class ObjFile; 18e8d8bef9SDimitry Andric 19e8d8bef9SDimitry Andric // Implements the interface between LLVM's DWARF-parsing utilities and LLD's 20e8d8bef9SDimitry Andric // InputSection structures. 21e8d8bef9SDimitry Andric class DwarfObject final : public llvm::DWARFObject { 22e8d8bef9SDimitry Andric public: isLittleEndian()23e8d8bef9SDimitry Andric bool isLittleEndian() const override { return true; } 24e8d8bef9SDimitry Andric find(const llvm::DWARFSection & sec,uint64_t pos)25*bdd1243dSDimitry Andric std::optional<llvm::RelocAddrEntry> find(const llvm::DWARFSection &sec, 26e8d8bef9SDimitry Andric uint64_t pos) const override { 27e8d8bef9SDimitry Andric // TODO: implement this 28*bdd1243dSDimitry Andric return std::nullopt; 29e8d8bef9SDimitry Andric } 30e8d8bef9SDimitry Andric forEachInfoSections(llvm::function_ref<void (const llvm::DWARFSection &)> f)31e8d8bef9SDimitry Andric void forEachInfoSections( 32e8d8bef9SDimitry Andric llvm::function_ref<void(const llvm::DWARFSection &)> f) const override { 33e8d8bef9SDimitry Andric f(infoSection); 34e8d8bef9SDimitry Andric } 35e8d8bef9SDimitry Andric getAbbrevSection()36e8d8bef9SDimitry Andric llvm::StringRef getAbbrevSection() const override { return abbrevSection; } getStrSection()37e8d8bef9SDimitry Andric llvm::StringRef getStrSection() const override { return strSection; } 38e8d8bef9SDimitry Andric getLineSection()3981ad6265SDimitry Andric llvm::DWARFSection const &getLineSection() const override { 4081ad6265SDimitry Andric return lineSection; 4181ad6265SDimitry Andric } 4281ad6265SDimitry Andric getStrOffsetsSection()43*bdd1243dSDimitry Andric llvm::DWARFSection const &getStrOffsetsSection() const override { 44*bdd1243dSDimitry Andric return strOffsSection; 45*bdd1243dSDimitry Andric } 46*bdd1243dSDimitry Andric 47e8d8bef9SDimitry Andric // Returns an instance of DwarfObject if the given object file has the 48e8d8bef9SDimitry Andric // relevant DWARF debug sections. 49e8d8bef9SDimitry Andric static std::unique_ptr<DwarfObject> create(ObjFile *); 50e8d8bef9SDimitry Andric 51e8d8bef9SDimitry Andric private: 52e8d8bef9SDimitry Andric llvm::DWARFSection infoSection; 5381ad6265SDimitry Andric llvm::DWARFSection lineSection; 54*bdd1243dSDimitry Andric llvm::DWARFSection strOffsSection; 55e8d8bef9SDimitry Andric llvm::StringRef abbrevSection; 56e8d8bef9SDimitry Andric llvm::StringRef strSection; 57e8d8bef9SDimitry Andric }; 58e8d8bef9SDimitry Andric 59*bdd1243dSDimitry Andric } // namespace lld::macho 60e8d8bef9SDimitry Andric 61e8d8bef9SDimitry Andric #endif 62