1 //===-- ObjectImageCommon.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_OBJECTIMAGECOMMON_H 15 #define LLVM_RUNTIMEDYLD_OBJECTIMAGECOMMON_H 16 17 #include "llvm/ExecutionEngine/ObjectBuffer.h" 18 #include "llvm/ExecutionEngine/ObjectImage.h" 19 #include "llvm/Object/ObjectFile.h" 20 21 namespace llvm { 22 23 class ObjectImageCommon : public ObjectImage { 24 ObjectImageCommon(); // = delete 25 ObjectImageCommon(const ObjectImageCommon &other); // = delete 26 27 protected: 28 object::ObjectFile *ObjFile; 29 30 // This form of the constructor allows subclasses to use 31 // format-specific subclasses of ObjectFile directly 32 ObjectImageCommon(ObjectBuffer *Input, object::ObjectFile *Obj) 33 : ObjectImage(Input), // saves Input as Buffer and takes ownership 34 ObjFile(Obj) 35 { 36 } 37 38 public: 39 ObjectImageCommon(ObjectBuffer* Input) 40 : ObjectImage(Input) // saves Input as Buffer and takes ownership 41 { 42 ObjFile = object::ObjectFile::createObjectFile(Buffer->getMemBuffer()); 43 } 44 virtual ~ObjectImageCommon() { delete ObjFile; } 45 46 virtual object::symbol_iterator begin_symbols() const 47 { return ObjFile->begin_symbols(); } 48 virtual object::symbol_iterator end_symbols() const 49 { return ObjFile->end_symbols(); } 50 51 virtual object::section_iterator begin_sections() const 52 { return ObjFile->begin_sections(); } 53 virtual object::section_iterator end_sections() const 54 { return ObjFile->end_sections(); } 55 56 virtual /* Triple::ArchType */ unsigned getArch() const 57 { return ObjFile->getArch(); } 58 59 virtual StringRef getData() const { return ObjFile->getData(); } 60 61 virtual object::ObjectFile* getObjectFile() const { return ObjFile; } 62 63 // Subclasses can override these methods to update the image with loaded 64 // addresses for sections and common symbols 65 virtual void updateSectionAddress(const object::SectionRef &Sec, 66 uint64_t Addr) {} 67 virtual void updateSymbolAddress(const object::SymbolRef &Sym, uint64_t Addr) 68 {} 69 70 // Subclasses can override these methods to provide JIT debugging support 71 virtual void registerWithDebugger() {} 72 virtual void deregisterWithDebugger() {} 73 }; 74 75 } // end namespace llvm 76 77 #endif // LLVM_RUNTIMEDYLD_OBJECT_IMAGE_H 78 79
