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
28 lines
785 B
C++
28 lines
785 B
C++
//===-- DWARFDataExtractor.cpp ----------------------------------*- 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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#include "DWARFDataExtractor.h"
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namespace lldb_private {
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uint64_t
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DWARFDataExtractor::GetDWARFInitialLength(lldb::offset_t *offset_ptr) const {
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uint64_t length = GetU32(offset_ptr);
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m_is_dwarf64 = (length == UINT32_MAX);
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if (m_is_dwarf64)
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length = GetU64(offset_ptr);
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return length;
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}
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dw_offset_t
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DWARFDataExtractor::GetDWARFOffset(lldb::offset_t *offset_ptr) const {
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return GetMaxU64(offset_ptr, GetDWARFSizeOfOffset());
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}
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}
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