//===- DWARFDebugInfoEntry.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_DWARFDEBUGINFOENTRY_H #define LLVM_DEBUGINFO_DWARFDEBUGINFOENTRY_H #include "llvm/BinaryFormat/Dwarf.h" #include "llvm/DebugInfo/DWARF/DWARFAbbreviationDeclaration.h" #include "llvm/DebugInfo/DWARF/DWARFDataExtractor.h" #include <cstdint> namespace llvm { class DataExtractor; class DWARFUnit; /// DWARFDebugInfoEntry - A DIE with only the minimum required data. class DWARFDebugInfoEntry { /// Offset within the .debug_info of the start of this entry. uint64_t Offset = 0; /// The integer depth of this DIE within the compile unit DIEs where the /// compile/type unit DIE has a depth of zero. uint32_t Depth = 0; const DWARFAbbreviationDeclaration *AbbrevDecl = nullptr; public: DWARFDebugInfoEntry() = default; /// Extracts a debug info entry, which is a child of a given unit, /// starting at a given offset. If DIE can't be extracted, returns false and /// doesn't change OffsetPtr. bool extractFast(const DWARFUnit &U, uint64_t *OffsetPtr); /// High performance extraction should use this call. bool extractFast(const DWARFUnit &U, uint64_t *OffsetPtr, const DWARFDataExtractor &DebugInfoData, uint64_t UEndOffset, uint32_t Depth); uint64_t getOffset() const { return Offset; } uint32_t getDepth() const { return Depth; } dwarf::Tag getTag() const { return AbbrevDecl ? AbbrevDecl->getTag() : dwarf::DW_TAG_null; } bool hasChildren() const { return AbbrevDecl && AbbrevDecl->hasChildren(); } const DWARFAbbreviationDeclaration *getAbbreviationDeclarationPtr() const { return AbbrevDecl; } }; } // end namespace llvm #endif // LLVM_DEBUGINFO_DWARFDEBUGINFOENTRY_H |