lib/ExecutionEngine/RuntimeDyld/ObjectImage.h

   1 //===---- ObjectImage.h - Format independent executuable object image -----===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file declares a file format independent ObjectImage class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_RUNTIMEDYLD_OBJECT_IMAGE_H
  15 #define LLVM_RUNTIMEDYLD_OBJECT_IMAGE_H
  16
  17 #include "llvm/Object/ObjectFile.h"
  18
  19 namespace llvm {
  20
  21 class ObjectImage {
  22   ObjectImage() LLVM_DELETED_FUNCTION;
  23   ObjectImage(const ObjectImage &other) LLVM_DELETED_FUNCTION;
  24 protected:
  25   object::ObjectFile *ObjFile;
  26
  27 public:
  28   ObjectImage(object::ObjectFile *Obj) { ObjFile = Obj; }
  29   virtual ~ObjectImage() {}
  30
  31   virtual object::symbol_iterator begin_symbols() const
  32               { return ObjFile->begin_symbols(); }
  33   virtual object::symbol_iterator end_symbols() const
  34               { return ObjFile->end_symbols(); }
  35
  36   virtual object::section_iterator begin_sections() const
  37               { return ObjFile->begin_sections(); }
  38   virtual object::section_iterator end_sections() const
  39               { return ObjFile->end_sections(); }
  40
  41   virtual /* Triple::ArchType */ unsigned getArch() const
  42               { return ObjFile->getArch(); }
  43
  44   // Subclasses can override these methods to update the image with loaded
  45   // addresses for sections and common symbols
  46   virtual void updateSectionAddress(const object::SectionRef &Sec,
  47                                     uint64_t Addr) {}
  48   virtual void updateSymbolAddress(const object::SymbolRef &Sym, uint64_t Addr)
  49               {}
  50
  51   // Subclasses can override these methods to provide JIT debugging support
  52   virtual void registerWithDebugger() {}
  53   virtual void deregisterWithDebugger() {}
  54 };
  55
  56 } // end namespace llvm
  57
  58 #endif // LLVM_RUNTIMEDYLD_OBJECT_IMAGE_H
  59