//===- DWARFObject.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_DEBUGINFO_DWARF_DWARFOBJECT_H #define LLVM_DEBUGINFO_DWARF_DWARFOBJECT_H #include "llvm/DebugInfo/DWARF/DWARFRelocMap.h" #include "llvm/DebugInfo/DWARF/DWARFSection.h" #include "llvm/Object/ObjectFile.h" namespace llvm { // This is responsible for low level access to the object file. It // knows how to find the required sections and compute relocated // values. // The default implementations of the get<Section> methods return dummy values. // This is to allow clients that only need some of those to implement just the // ones they need. We can't use unreachable for as many cases because the parser // implementation is eager and will call some of these methods even if the // result is not used. class DWARFObject { DWARFSection Dummy; public: virtual ~DWARFObject() = default; virtual StringRef getFileName() const { llvm_unreachable("unimplemented"); } virtual const object::ObjectFile *getFile() const { return nullptr; } virtual ArrayRef<SectionName> getSectionNames() const { return {}; } virtual bool isLittleEndian() const = 0; virtual uint8_t getAddressSize() const { llvm_unreachable("unimplemented"); } virtual void forEachInfoSections(function_ref<void(const DWARFSection &)> F) const {} virtual void forEachTypesSections(function_ref<void(const DWARFSection &)> F) const {} virtual StringRef getAbbrevSection() const { return ""; } virtual const DWARFSection &getLocSection() const { return Dummy; } virtual const DWARFSection &getLoclistsSection() const { return Dummy; } virtual StringRef getArangesSection() const { return ""; } virtual const DWARFSection &getFrameSection() const { return Dummy; } virtual const DWARFSection &getEHFrameSection() const { return Dummy; } virtual const DWARFSection &getLineSection() const { return Dummy; } virtual StringRef getLineStrSection() const { return ""; } virtual StringRef getStrSection() const { return ""; } virtual const DWARFSection &getRangesSection() const { return Dummy; } virtual const DWARFSection &getRnglistsSection() const { return Dummy; } virtual const DWARFSection &getMacroSection() const { return Dummy; } virtual StringRef getMacroDWOSection() const { return ""; } virtual StringRef getMacinfoSection() const { return ""; } virtual StringRef getMacinfoDWOSection() const { return ""; } virtual const DWARFSection &getPubnamesSection() const { return Dummy; } virtual const DWARFSection &getPubtypesSection() const { return Dummy; } virtual const DWARFSection &getGnuPubnamesSection() const { return Dummy; } virtual const DWARFSection &getGnuPubtypesSection() const { return Dummy; } virtual const DWARFSection &getStrOffsetsSection() const { return Dummy; } virtual void forEachInfoDWOSections(function_ref<void(const DWARFSection &)> F) const {} virtual void forEachTypesDWOSections(function_ref<void(const DWARFSection &)> F) const {} virtual StringRef getAbbrevDWOSection() const { return ""; } virtual const DWARFSection &getLineDWOSection() const { return Dummy; } virtual const DWARFSection &getLocDWOSection() const { return Dummy; } virtual const DWARFSection &getLoclistsDWOSection() const { return Dummy; } virtual StringRef getStrDWOSection() const { return ""; } virtual const DWARFSection &getStrOffsetsDWOSection() const { return Dummy; } virtual const DWARFSection &getRangesDWOSection() const { return Dummy; } virtual const DWARFSection &getRnglistsDWOSection() const { return Dummy; } virtual const DWARFSection &getAddrSection() const { return Dummy; } virtual const DWARFSection &getAppleNamesSection() const { return Dummy; } virtual const DWARFSection &getAppleTypesSection() const { return Dummy; } virtual const DWARFSection &getAppleNamespacesSection() const { return Dummy; } virtual const DWARFSection &getNamesSection() const { return Dummy; } virtual const DWARFSection &getAppleObjCSection() const { return Dummy; } virtual StringRef getCUIndexSection() const { return ""; } virtual StringRef getGdbIndexSection() const { return ""; } virtual StringRef getTUIndexSection() const { return ""; } virtual Optional<RelocAddrEntry> find(const DWARFSection &Sec, uint64_t Pos) const = 0; }; } // namespace llvm #endif |