//===- DWARFDebugAranges.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_DWARFDEBUGARANGES_H #define LLVM_DEBUGINFO_DWARFDEBUGARANGES_H #include "llvm/ADT/DenseSet.h" #include "llvm/Support/DataExtractor.h" #include #include namespace llvm { class DWARFContext; class DWARFDebugAranges { public: void generate(DWARFContext *CTX); uint32_t findAddress(uint64_t Address) const; private: void clear(); void extract(DataExtractor DebugArangesData); /// Call appendRange multiple times and then call construct. void appendRange(uint64_t CUOffset, uint64_t LowPC, uint64_t HighPC); void construct(); struct Range { explicit Range(uint64_t LowPC = -1ULL, uint64_t HighPC = -1ULL, uint32_t CUOffset = -1U) : LowPC(LowPC), Length(HighPC - LowPC), CUOffset(CUOffset) {} void setHighPC(uint64_t HighPC) { if (HighPC == -1ULL || HighPC <= LowPC) Length = 0; else Length = HighPC - LowPC; } uint64_t HighPC() const { if (Length) return LowPC + Length; return -1ULL; } bool operator<(const Range &other) const { return LowPC < other.LowPC; } uint64_t LowPC; /// Start of address range. uint32_t Length; /// End of address range (not including this address). uint32_t CUOffset; /// Offset of the compile unit or die. }; struct RangeEndpoint { uint64_t Address; uint64_t CUOffset; bool IsRangeStart; RangeEndpoint(uint64_t Address, uint64_t CUOffset, bool IsRangeStart) : Address(Address), CUOffset(CUOffset), IsRangeStart(IsRangeStart) {} bool operator<(const RangeEndpoint &Other) const { return Address < Other.Address; } }; using RangeColl = std::vector; using RangeCollIterator = RangeColl::const_iterator; std::vector Endpoints; RangeColl Aranges; DenseSet ParsedCUOffsets; }; } // end namespace llvm #endif // LLVM_DEBUGINFO_DWARFDEBUGARANGES_H