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_EXECUTIONENGINE_OBJECTIMAGE_H 15 #define LLVM_EXECUTIONENGINE_OBJECTIMAGE_H 16 17 #include "llvm/ExecutionEngine/ObjectBuffer.h" 18 #include "llvm/Object/ObjectFile.h" 19 20 namespace llvm { 21 22 23 /// ObjectImage - A container class that represents an ObjectFile that has been 24 /// or is in the process of being loaded into memory for execution. 25 class ObjectImage { 26 ObjectImage() LLVM_DELETED_FUNCTION; 27 ObjectImage(const ObjectImage &other) LLVM_DELETED_FUNCTION; 28 virtual void anchor(); 29 30 protected: 31 std::unique_ptr<ObjectBuffer> Buffer; 32 33 public: 34 ObjectImage(ObjectBuffer *Input) : Buffer(Input) {} 35 virtual ~ObjectImage() {} 36 37 virtual object::symbol_iterator begin_symbols() const = 0; 38 virtual object::symbol_iterator end_symbols() const = 0; 39 iterator_range<object::symbol_iterator> symbols() const { 40 return iterator_range<object::symbol_iterator>(begin_symbols(), 41 end_symbols()); 42 } 43 44 virtual object::section_iterator begin_sections() const = 0; 45 virtual object::section_iterator end_sections() const = 0; 46 iterator_range<object::section_iterator> sections() const { 47 return iterator_range<object::section_iterator>(begin_sections(), 48 end_sections()); 49 } 50 51 virtual /* Triple::ArchType */ unsigned getArch() const = 0; 52 53 // Subclasses can override these methods to update the image with loaded 54 // addresses for sections and common symbols 55 virtual void updateSectionAddress(const object::SectionRef &Sec, 56 uint64_t Addr) = 0; 57 virtual void updateSymbolAddress(const object::SymbolRef &Sym, 58 uint64_t Addr) = 0; 59 60 virtual StringRef getData() const = 0; 61 62 virtual object::ObjectFile* getObjectFile() const = 0; 63 64 // Subclasses can override these methods to provide JIT debugging support 65 virtual void registerWithDebugger() = 0; 66 virtual void deregisterWithDebugger() = 0; 67 }; 68 69 } // end namespace llvm 70 71 #endif // LLVM_EXECUTIONENGINE_OBJECTIMAGE_H 72
