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relocationinfo.h

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00001 /*
00002 PeRdr - PE file disassembler
00003 Copyright (C) 1999-2003 Frediano Ziglio
00004 -----
00005 
00006 This program is free software; you can redistribute it and/or modify
00007 it under the terms of the GNU General Public License as published by
00008 the Free Software Foundation; either version 2 of the License, or
00009 (at your option) any later version.
00010 
00011 This program is distributed in the hope that it will be useful,
00012 but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014 GNU General Public License for more details.
00015 
00016 You should have received a copy of the GNU General Public License
00017 along with this program; if not, write to the Free Software
00018 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00019 -----
00020 
00021 INFORMATION
00022   www: http://freddy77.tripod.com/perdr/
00023   e-mail: freddy77@angelfire.com
00024 */
00025 #ifndef FILE_RELOCATIONINFO_H
00026 #define FILE_RELOCATIONINFO_H
00027 
00028 #include <set>
00029 
00030 // contiene informazioni circa le rilocazioni di un letterale
00031 class Relocation
00032 {
00033 public:
00034   // tipi di rilocazione
00035   // relError e' usata nel caso che la rilocazione non sia completa
00036   // (es: presi 2 byte di una rilocazione)
00037         typedef enum _Type { relNone, relRelative, relAbsolute } Type;
00038   Relocation(Type _type = relNone):type(_type) {};
00039   Type GetType() const { return type; };
00040   void SetType(Type _type) { type = _type; };
00041 private:
00042   Type type;
00043 };
00044 
00045 class RelocationInfos
00046 {
00047 public:
00048         /** Hold relocation info for returning error */
00049         static const Relocation relError;
00050   void AddRelocation(const Relocation& rel,vma_t address);
00051   /** 
00052    * return relocation at a given address 
00053    * @return Valid relocation pointer or &RelocationInfos::relError
00054    */
00055   const Relocation* GetRelocation(vma_t address,unsigned bytes) const;
00056   const Relocation* GetRelocation(vma_t address) const;
00057 private:
00058   // per ora contiene solo rilocazioni di tipo relativo
00059   typedef std::set<vma_t,std::less<vma_t> > t_relocations;
00060   t_relocations relocations;
00061 };
00062 
00063 #endif //FILE_RELOCATIONINFO_H

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