xref: /freebsd-11-stable/contrib/llvm-project/lldb/source/Plugins/SymbolFile/DWARF/DWARFDataExtractor.h

//===-- DWARFDataExtractor.h ------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef liblldb_DWARFDataExtractor_h_
#define liblldb_DWARFDataExtractor_h_

// Other libraries and framework includes.
#include "lldb/Core/DataExtractor.h"
#include "lldb/Core/dwarf.h"

namespace lldb_private {

class DWARFDataExtractor : public lldb_private::DataExtractor
{
public:
    DWARFDataExtractor() : DataExtractor(), m_is_dwarf64(false) { };

    DWARFDataExtractor (const DWARFDataExtractor& data, lldb::offset_t offset, lldb::offset_t length) :
      DataExtractor(data, offset, length), m_is_dwarf64(false) { };

    uint64_t
    GetDWARFInitialLength(lldb::offset_t *offset_ptr) const;

    dw_offset_t
    GetDWARFOffset(lldb::offset_t *offset_ptr) const;

    size_t
    GetDWARFSizeofInitialLength() const { return m_is_dwarf64 ? 12 : 4; }

    bool
    IsDWARF64() const { return m_is_dwarf64; }

protected:
    mutable bool m_is_dwarf64;
};

}

#endif  // liblldb_DWARFDataExtractor_h_