1 //===-- DWARFDebugAranges.h -------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef LLVM_DEBUGINFO_DWARFDEBUGARANGES_H
11 #define LLVM_DEBUGINFO_DWARFDEBUGARANGES_H
13 #include "llvm/ADT/DenseSet.h"
14 #include "llvm/Support/DataExtractor.h"
21 class DWARFDebugAranges {
23 void generate(DWARFContext *CTX);
24 uint32_t findAddress(uint64_t Address) const;
28 void extract(DataExtractor DebugArangesData);
30 // Use appendRange multiple times and then call sortAndMinimize.
31 void appendRange(uint32_t CUOffset, uint64_t LowPC, uint64_t HighPC);
32 void sortAndMinimize();
35 explicit Range(uint64_t LowPC = -1ULL, uint64_t HighPC = -1ULL,
36 uint32_t CUOffset = -1U)
37 : LowPC(LowPC), Length(HighPC - LowPC), CUOffset(CUOffset) {}
39 void setHighPC(uint64_t HighPC) {
40 if (HighPC == -1ULL || HighPC <= LowPC)
43 Length = HighPC - LowPC;
45 uint64_t HighPC() const {
47 return LowPC + Length;
50 bool containsAddress(uint64_t Address) const {
51 return LowPC <= Address && Address < HighPC();
54 bool operator <(const Range &other) const {
55 return LowPC < other.LowPC;
58 static bool SortedOverlapCheck(const Range &Left, const Range &Right) {
59 if (Left.CUOffset != Right.CUOffset)
61 return Left.HighPC() >= Right.LowPC;
64 uint64_t LowPC; // Start of address range.
65 uint32_t Length; // End of address range (not including this address).
66 uint32_t CUOffset; // Offset of the compile unit or die.
69 typedef std::vector<Range> RangeColl;
70 typedef RangeColl::const_iterator RangeCollIterator;
71 typedef DenseSet<uint32_t> ParsedCUOffsetColl;
74 ParsedCUOffsetColl ParsedCUOffsets;