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/ADT/HashTable.h"
12 #include "mcld/ADT/StringHash.h"
13 #include "mcld/LD/LDReader.h"
14 #include "mcld/LD/ResolveInfo.h"
15 
16 namespace mcld {
17 
18 class Input;
19 class Module;
20 
21 /** \class ObjectReader
22  *  \brief ObjectReader provides an common interface for different object
23  *  formats.
24  */
25 class ObjectReader : public LDReader {
26  protected:
27   typedef HashTable<ResolveInfo, hash::StringHash<hash::DJB> >
28       GroupSignatureMap;
29 
30  protected:
ObjectReader()31   ObjectReader() {}
32 
33  public:
~ObjectReader()34   virtual ~ObjectReader() { f_GroupSignatureMap.clear(); }
35 
36   virtual bool readHeader(Input& pFile) = 0;
37 
38   virtual bool readSymbols(Input& pFile) = 0;
39 
40   virtual bool readSections(Input& pFile) = 0;
41 
42   /// readRelocations - read relocation sections
43   ///
44   /// This function should be called after symbol resolution.
45   virtual bool readRelocations(Input& pFile) = 0;
46 
signatures()47   GroupSignatureMap& signatures() { return f_GroupSignatureMap; }
48 
signatures()49   const GroupSignatureMap& signatures() const { return f_GroupSignatureMap; }
50 
51  protected:
52   GroupSignatureMap f_GroupSignatureMap;
53 };
54 
55 }  // namespace mcld
56 
57 #endif  // MCLD_LD_OBJECTREADER_H_
58