1 files changed, 89 insertions, 0 deletions
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.h b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.h
new file mode 100644
index 00000000000..607c3c24a3e
--- /dev/null
+++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.h
@@ -0,0 +1,89 @@
+//===-- 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 liblldb_DWARFDebugRanges_h_
+#define liblldb_DWARFDebugRanges_h_
+
+#include "SymbolFileDWARF.h"
+#include <map>
+#include <vector>
+
+
+class DWARFDebugRanges
+{
+public:
+
+    //------------------------------------------------------------------
+    // Address range
+    //------------------------------------------------------------------
+    struct Range
+    {
+        Range(dw_addr_t begin = DW_INVALID_ADDRESS, dw_addr_t end = DW_INVALID_ADDRESS) :
+            begin_offset(begin),
+            end_offset(end)
+        {
+        }
+
+        void Clear()
+        {
+            begin_offset = DW_INVALID_ADDRESS;
+            end_offset = DW_INVALID_ADDRESS;
+        }
+
+        dw_addr_t   begin_offset;
+        dw_addr_t   end_offset;
+
+        typedef std::vector<Range>          collection;
+        typedef collection::iterator        iterator;
+        typedef collection::const_iterator  const_iterator;
+
+    };
+
+    //------------------------------------------------------------------
+    // Collection of ranges
+    //------------------------------------------------------------------
+    struct RangeList
+    {
+            RangeList() :
+                ranges()
+            {
+            }
+
+        bool Extract(SymbolFileDWARF* dwarf2Data, uint32_t* offset_ptr);
+        bool AddRange(dw_addr_t lo_addr, dw_addr_t hi_addr);
+        void Clear()
+            {
+                ranges.clear();
+            }
+
+        dw_addr_t LowestAddress(const dw_addr_t base_addr) const;
+        dw_addr_t HighestAddress(const dw_addr_t base_addr) const;
+        void AddOffset(dw_addr_t offset);
+        void SubtractOffset(dw_addr_t offset);
+        size_t Size() const;
+        const Range* RangeAtIndex(size_t i) const;
+        const Range* Lookup(dw_addr_t offset) const;
+        Range::collection   ranges;
+    };
+
+    DWARFDebugRanges();
+    ~DWARFDebugRanges();
+    void Extract(SymbolFileDWARF* dwarf2Data);
+    static void Dump(lldb_private::Stream *s, const lldb_private::DataExtractor& debug_ranges_data, uint32_t* offset_ptr, dw_addr_t cu_base_addr);
+    bool FindRanges(dw_offset_t debug_ranges_offset, DWARFDebugRanges::RangeList& range_list) const;
+
+protected:
+    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  // liblldb_DWARFDebugRanges_h_