1 //===- ObjectReader.h -----------------------------------------------------===//
2 //
3 //                     The MCLinker Project
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 #ifndef MCLD_LD_OBJECTREADER_H
10 #define MCLD_LD_OBJECTREADER_H
11 #include "mcld/LD/LDReader.h"
12 #include <mcld/ADT/HashTable.h>
13 #include <mcld/ADT/StringHash.h>
14 #include <mcld/LD/ResolveInfo.h>
15 
16 namespace mcld {
17 
18 class Module;
19 class Input;
20 
21 /** \class ObjectReader
22  *  \brief ObjectReader provides an common interface for different object
23  *  formats.
24  */
25 class ObjectReader : public LDReader
26 {
27 protected:
28   typedef HashTable<ResolveInfo, hash::StringHash<hash::DJB> > GroupSignatureMap;
29 
30 protected:
ObjectReader()31   ObjectReader()
32   { }
33 
34 public:
~ObjectReader()35   virtual ~ObjectReader() { f_GroupSignatureMap.clear(); }
36 
37   virtual bool readHeader(Input& pFile) = 0;
38 
39   virtual bool readSymbols(Input& pFile) = 0;
40 
41   virtual bool readSections(Input& pFile) = 0;
42 
43   /// readRelocations - read relocation sections
44   ///
45   /// This function should be called after symbol resolution.
46   virtual bool readRelocations(Input& pFile) = 0;
47 
signatures()48   GroupSignatureMap& signatures()
49   { return f_GroupSignatureMap; }
50 
signatures()51   const GroupSignatureMap& signatures() const
52   { return f_GroupSignatureMap; }
53 
54 protected:
55   GroupSignatureMap f_GroupSignatureMap;
56 
57 };
58 
59 } // namespace of mcld
60 
61 #endif
62 
63