f56c30d13b
This cleanup is designed to make the https://reviews.llvm.org/D32167 patch smaller and easier to read. Cleanup in this patch: Allow DWARFUnit subclasses to hand out the data that should be used when decoding data for a DIE. The information might be in .debug_info or could be in .debug_types. There is a new virtual function on DWARFUnit that each subclass must override: virtual const lldb_private::DWARFDataExtractor &DWARFUnit::GetData() const; This allows DWARFCompileUnit and eventually DWARFTypeUnit to hand out different data to be used when decoding the DIE information. Add a new pure virtual function to get the size of the DWARF unit header: virtual uint32_t DWARFUnit::GetHeaderByteSize() const = 0; This allows DWARFCompileUnit and eventually DWARFTypeUnit to hand out different offsets where the first DIE starts when decoding DIE information from the unit. Added a new function to DWARFDataExtractor to get the size of an offset: size_t DWARFDataExtractor::GetDWARFSizeOfOffset() const; Removed dead dumping and parsing code in the DWARFDebugInfo class. Inlined a bunch of calls in DWARFUnit for accessors that were just returning integer member variables. Renamed DWARFUnit::Size() to DWARFUnit::GetHeaderByteSize() as it clearly states what it is doing and makes more sense. Differential Revision: https://reviews.llvm.org/D46606 llvm-svn: 331892
50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
//===-- DWARFCompileUnit.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 SymbolFileDWARF_DWARFCompileUnit_h_
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#define SymbolFileDWARF_DWARFCompileUnit_h_
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#include "DWARFUnit.h"
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class DWARFCompileUnit : public DWARFUnit {
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friend class DWARFUnit;
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public:
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static DWARFUnitSP Extract(SymbolFileDWARF *dwarf2Data,
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const lldb_private::DWARFDataExtractor &debug_info,
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lldb::offset_t *offset_ptr);
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void Dump(lldb_private::Stream *s) const override;
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//------------------------------------------------------------------
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/// Get the data that contains the DIE information for this unit.
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///
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/// @return
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/// The correct data (.debug_types for DWARF 4 and earlier, and
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/// .debug_info for DWARF 5 and later) for the DIE information in
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/// this unit.
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//------------------------------------------------------------------
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const lldb_private::DWARFDataExtractor &GetData() const override;
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//------------------------------------------------------------------
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/// Get the size in bytes of the header.
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///
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/// @return
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/// Byte size of the compile unit header
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//------------------------------------------------------------------
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uint32_t GetHeaderByteSize() const override {
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return m_is_dwarf64 ? 23 : 11;
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}
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private:
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DWARFCompileUnit(SymbolFileDWARF *dwarf2Data);
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DISALLOW_COPY_AND_ASSIGN(DWARFCompileUnit);
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};
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#endif // SymbolFileDWARF_DWARFCompileUnit_h_
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