| //===-- DWARFDebugAranges.h -------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_DEBUGINFO_DWARFDEBUGARANGES_H |
| #define LLVM_DEBUGINFO_DWARFDEBUGARANGES_H |
| |
| #include "DWARFDebugArangeSet.h" |
| #include "llvm/ADT/DenseSet.h" |
| #include <list> |
| |
| namespace llvm { |
| |
| class DWARFContext; |
| |
| class DWARFDebugAranges { |
| public: |
| void clear() { |
| Aranges.clear(); |
| ParsedCUOffsets.clear(); |
| } |
| |
| void generate(DWARFContext *CTX); |
| |
| // Use appendRange multiple times and then call sortAndMinimize. |
| void appendRange(uint32_t CUOffset, uint64_t LowPC, uint64_t HighPC); |
| |
| uint32_t findAddress(uint64_t Address) const; |
| |
| private: |
| void extract(DataExtractor DebugArangesData); |
| void sortAndMinimize(); |
| |
| 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 containsAddress(uint64_t Address) const { |
| return LowPC <= Address && Address < HighPC(); |
| } |
| |
| bool operator <(const Range &other) const { |
| return LowPC < other.LowPC; |
| } |
| |
| static bool SortedOverlapCheck(const Range &Left, const Range &Right) { |
| if (Left.CUOffset != Right.CUOffset) |
| return false; |
| return Left.HighPC() >= Right.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. |
| }; |
| |
| typedef std::vector<Range> RangeColl; |
| typedef RangeColl::const_iterator RangeCollIterator; |
| typedef DenseSet<uint32_t> ParsedCUOffsetColl; |
| |
| RangeColl Aranges; |
| ParsedCUOffsetColl ParsedCUOffsets; |
| }; |
| |
| } |
| |
| #endif |