contrib/llvm-project/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAranges.h

   1 //===-- DWARFDebugAranges.h -------------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef SymbolFileDWARF_DWARFDebugAranges_h_
  10 #define SymbolFileDWARF_DWARFDebugAranges_h_
  11
  12 #include "lldb/Core/dwarf.h"
  13 #include "lldb/Utility/RangeMap.h"
  14 #include "llvm/Support/Error.h"
  15
  16 class DWARFDebugAranges {
  17 protected:
  18   typedef lldb_private::RangeDataVector<dw_addr_t, uint32_t, dw_offset_t>
  19       RangeToDIE;
  20
  21 public:
  22   typedef RangeToDIE::Entry Range;
  23   typedef std::vector<RangeToDIE::Entry> RangeColl;
  24
  25   DWARFDebugAranges();
  26
  27   void Clear() { m_aranges.Clear(); }
  28
  29   llvm::Error
  30   extract(const lldb_private::DWARFDataExtractor &debug_aranges_data);
  31
  32   // Use append range multiple times and then call sort
  33   void AppendRange(dw_offset_t cu_offset, dw_addr_t low_pc, dw_addr_t high_pc);
  34
  35   void Sort(bool minimize);
  36
  37   void Dump(lldb_private::Log *log) const;
  38
  39   dw_offset_t FindAddress(dw_addr_t address) const;
  40
  41   bool IsEmpty() const { return m_aranges.IsEmpty(); }
  42   size_t GetNumRanges() const { return m_aranges.GetSize(); }
  43
  44   dw_offset_t OffsetAtIndex(uint32_t idx) const {
  45     const Range *range = m_aranges.GetEntryAtIndex(idx);
  46     if (range)
  47       return range->data;
  48     return DW_INVALID_OFFSET;
  49   }
  50
  51 protected:
  52   RangeToDIE m_aranges;
  53 };
  54
  55 #endif // SymbolFileDWARF_DWARFDebugAranges_h_