1 files changed, 70 insertions, 0 deletions
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugArangeSet.h b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugArangeSet.h
new file mode 100644
index 00000000000..fc1e391aeb4
--- /dev/null
+++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugArangeSet.h
@@ -0,0 +1,70 @@
+//===-- DWARFDebugArangeSet.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_DWARFDebugArangeSet_h_
+#define SymbolFileDWARF_DWARFDebugArangeSet_h_
+
+#include "SymbolFileDWARF.h"
+#include <vector>
+
+class SymbolFileDWARF;
+
+class DWARFDebugArangeSet
+{
+public:
+    typedef struct HeaderTag
+    {
+        uint32_t    length;     // The total length of the entries for that set, not including the length field itself.
+        uint16_t    version;    // The DWARF version number
+        uint32_t    cu_offset;  // The offset from the beginning of the .debug_info section of the compilation unit entry referenced by the table.
+        uint8_t     addr_size;  // The size in bytes of an address on the target architecture. For segmented addressing, this is the size of the offset portion of the address
+        uint8_t     seg_size;   // The size in bytes of a segment descriptor on the target architecture. If the target system uses a flat address space, this value is 0.
+    } Header;
+
+    typedef struct DescriptorTag
+    {
+        dw_addr_t   address;
+        dw_addr_t   length;
+        dw_addr_t end_address() const { return address + length; }
+    } Descriptor;
+
+
+                    DWARFDebugArangeSet();
+        void        Clear();
+        void        SetOffset(uint32_t offset) { m_offset = offset; }
+        void        SetHeader(uint16_t version, uint32_t cu_offset, uint8_t addr_size, uint8_t seg_size);
+        void        AddDescriptor(const DWARFDebugArangeSet::Descriptor& range);
+        void        Compact();
+        bool        Extract(const lldb_private::DataExtractor &data, uint32_t* offset_ptr);
+        void        Dump(lldb_private::Stream *s) const;
+        dw_offset_t GetCompileUnitDIEOffset() const { return m_header.cu_offset; }
+        dw_offset_t GetOffsetOfNextEntry() const;
+        dw_offset_t FindAddress(dw_addr_t address) const;
+        uint32_t    NumDescriptors() const { return m_arange_descriptors.size(); }
+        const Header&       GetHeader() const { return m_header; }
+        const Descriptor*   GetDescriptor(uint32_t i) const
+        {
+            if (i < m_arange_descriptors.size())
+                return &m_arange_descriptors[i];
+            return NULL;
+        }
+
+
+protected:
+    typedef std::vector<Descriptor>         DescriptorColl;
+    typedef DescriptorColl::iterator        DescriptorIter;
+    typedef DescriptorColl::const_iterator  DescriptorConstIter;
+
+
+    uint32_t        m_offset;
+    Header          m_header;
+    DescriptorColl  m_arange_descriptors;
+};
+
+#endif  // SymbolFileDWARF_DWARFDebugArangeSet_h_