Tamas Berghammer 2540a553e5 Add support for DW_AT_ranges_base attribute
It is a new attribute emitted by clang as a GNU extension and will
be part of Dwarf5. The purpose of the attribute is to specify a compile
unit level base value for all DW_AT_ranges to reduce the number of
relocations have to be done by the linker.

Fixes (at least partially): https://llvm.org/pr28826

Differential revision: https://reviews.llvm.org/D24514

llvm-svn: 281595
2016-09-15 08:53:33 +00:00

41 lines
1.3 KiB
C++

//===-- DWARFDebugRanges.h --------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef SymbolFileDWARF_DWARFDebugRanges_h_
#define SymbolFileDWARF_DWARFDebugRanges_h_
#include "DWARFDIE.h"
#include "SymbolFileDWARF.h"
#include <map>
class DWARFDebugRanges {
public:
DWARFDebugRanges();
~DWARFDebugRanges();
void Extract(SymbolFileDWARF *dwarf2Data);
static void Dump(lldb_private::Stream &s,
const lldb_private::DWARFDataExtractor &debug_ranges_data,
lldb::offset_t *offset_ptr, dw_addr_t cu_base_addr);
bool FindRanges(dw_addr_t debug_ranges_base,
dw_offset_t debug_ranges_offset,
DWARFRangeList &range_list) const;
protected:
bool Extract(SymbolFileDWARF *dwarf2Data, lldb::offset_t *offset_ptr,
DWARFRangeList &range_list);
typedef std::map<dw_offset_t, DWARFRangeList> range_map;
typedef range_map::iterator range_map_iterator;
typedef range_map::const_iterator range_map_const_iterator;
range_map m_range_map;
};
#endif // SymbolFileDWARF_DWARFDebugRanges_h_