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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
29 protected:
30   OwningPtr<ObjectBuffer> Buffer;
31
32 public:
33   ObjectImage(ObjectBuffer *Input) : Buffer(Input) {}
34   virtual ~ObjectImage() {}
35
36   virtual object::symbol_iterator begin_symbols() const = 0;
37   virtual object::symbol_iterator end_symbols() const = 0;
38
39   virtual object::section_iterator begin_sections() const = 0;
40   virtual object::section_iterator end_sections() const  = 0;
41
42   virtual /* Triple::ArchType */ unsigned getArch() const = 0;
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) = 0;
48   virtual void updateSymbolAddress(const object::SymbolRef &Sym,
49                                    uint64_t Addr) = 0;
50
51   virtual StringRef getData() const = 0;
52
53   virtual object::ObjectFile* getObjectFile() const = 0;
54
55   // Subclasses can override these methods to provide JIT debugging support
56   virtual void registerWithDebugger() = 0;
57   virtual void deregisterWithDebugger() = 0;
58 };
59
60 } // end namespace llvm
61
62 #endif // LLVM_EXECUTIONENGINE_OBJECTIMAGE_H
63