Files
clang-p2996/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.h
Greg Clayton c7bece56fa <rdar://problem/13069948>
Major fixed to allow reading files that are over 4GB. The main problems were that the DataExtractor was using 32 bit offsets as a data cursor, and since we mmap all of our object files we could run into cases where if we had a very large core file that was over 4GB, we were running into the 4GB boundary.

So I defined a new "lldb::offset_t" which should be used for all file offsets.

After making this change, I enabled warnings for data loss and for enexpected implicit conversions temporarily and found a ton of things that I fixed.

Any functions that take an index internally, should use "size_t" for any indexes and also should return "size_t" for any sizes of collections.

llvm-svn: 173463
2013-01-25 18:06:21 +00:00

47 lines
1.4 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 "SymbolFileDWARF.h"
#include <map>
#include <vector>
#include "lldb/Core/RangeMap.h"
class DWARFDebugRanges
{
public:
typedef lldb_private::RangeArray<dw_addr_t, dw_addr_t, 2> RangeList;
typedef RangeList::Entry Range;
DWARFDebugRanges();
~DWARFDebugRanges();
void Extract(SymbolFileDWARF* dwarf2Data);
static void Dump(lldb_private::Stream &s, const lldb_private::DataExtractor& debug_ranges_data, lldb::offset_t *offset_ptr, dw_addr_t cu_base_addr);
bool FindRanges(dw_offset_t debug_ranges_offset, DWARFDebugRanges::RangeList& range_list) const;
protected:
bool
Extract (SymbolFileDWARF* dwarf2Data,
lldb::offset_t *offset_ptr,
RangeList &range_list);
typedef std::map<dw_offset_t, RangeList> 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_