DWARFDebugAranges.h

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//===-- 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 LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFDEBUGARANGES_H
#define LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFDEBUGARANGES_H

#include "lldb/Core/dwarf.h"
#include "lldb/Utility/RangeMap.h"
#include "llvm/Support/Error.h"

class DWARFDebugAranges {
protected:
  typedef lldb_private::RangeDataVector<dw_addr_t, uint32_t, dw_offset_t>
      RangeToDIE;

public:
  typedef RangeToDIE::Entry Range;
  typedef std::vector<RangeToDIE::Entry> RangeColl;

  DWARFDebugAranges();

  void Clear() { m_aranges.Clear(); }

  llvm::Error
  extract(const lldb_private::DWARFDataExtractor &debug_aranges_data);

  // Use append range multiple times and then call sort
  void AppendRange(dw_offset_t cu_offset, dw_addr_t low_pc, dw_addr_t high_pc);

  void Sort(bool minimize);

  void Dump(lldb_private::Log *log) const;

  dw_offset_t FindAddress(dw_addr_t address) const;

  bool IsEmpty() const { return m_aranges.IsEmpty(); }
  size_t GetNumRanges() const { return m_aranges.GetSize(); }

  dw_offset_t OffsetAtIndex(uint32_t idx) const {
    const Range *range = m_aranges.GetEntryAtIndex(idx);
    if (range)
      return range->data;
    return DW_INVALID_OFFSET;
  }

protected:
  RangeToDIE m_aranges;
};

#endif // LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFDEBUGARANGES_H