forked from OSchip/llvm-project
99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
//===-- DWARFDebugAranges.h -------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEBUGINFO_DWARFDEBUGARANGES_H
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#define LLVM_DEBUGINFO_DWARFDEBUGARANGES_H
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#include "DWARFDebugArangeSet.h"
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#include <list>
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namespace llvm {
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class DWARFContext;
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class DWARFDebugAranges {
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public:
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struct Range {
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explicit Range(uint64_t lo = -1ULL, uint64_t hi = -1ULL,
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uint32_t off = -1U)
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: LoPC(lo), Length(hi-lo), Offset(off) {}
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void clear() {
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LoPC = -1ULL;
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Length = 0;
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Offset = -1U;
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}
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void setHiPC(uint64_t HiPC) {
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if (HiPC == -1ULL || HiPC <= LoPC)
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Length = 0;
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else
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Length = HiPC - LoPC;
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}
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uint64_t HiPC() const {
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if (Length)
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return LoPC + Length;
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return -1ULL;
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}
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bool isValidRange() const { return Length > 0; }
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static bool SortedOverlapCheck(const Range &curr_range,
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const Range &next_range, uint32_t n) {
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if (curr_range.Offset != next_range.Offset)
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return false;
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return curr_range.HiPC() + n >= next_range.LoPC;
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}
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bool contains(const Range &range) const {
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return LoPC <= range.LoPC && range.HiPC() <= HiPC();
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}
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void dump(raw_ostream &OS) const;
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uint64_t LoPC; // Start of address range
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uint32_t Length; // End of address range (not including this address)
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uint32_t Offset; // Offset of the compile unit or die
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};
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void clear() { Aranges.clear(); }
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bool allRangesAreContiguous(uint64_t& LoPC, uint64_t& HiPC) const;
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bool getMaxRange(uint64_t& LoPC, uint64_t& HiPC) const;
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bool extract(DataExtractor debug_aranges_data);
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bool generate(DWARFContext *ctx);
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// Use append range multiple times and then call sort
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void appendRange(uint32_t cu_offset, uint64_t low_pc, uint64_t high_pc);
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void sort(bool minimize, uint32_t n);
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const Range *rangeAtIndex(uint32_t idx) const {
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if (idx < Aranges.size())
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return &Aranges[idx];
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return NULL;
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}
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void dump(raw_ostream &OS) const;
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uint32_t findAddress(uint64_t address) const;
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bool isEmpty() const { return Aranges.empty(); }
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uint32_t getNumRanges() const { return Aranges.size(); }
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uint32_t offsetAtIndex(uint32_t idx) const {
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if (idx < Aranges.size())
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return Aranges[idx].Offset;
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return -1U;
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}
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typedef std::vector<Range> RangeColl;
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typedef RangeColl::const_iterator RangeCollIterator;
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private:
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RangeColl Aranges;
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};
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}
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#endif
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