ObjectImage.h revision 263508 
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
20namespace 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.
25class ObjectImage {
26  ObjectImage() LLVM_DELETED_FUNCTION;
27  ObjectImage(const ObjectImage &other) LLVM_DELETED_FUNCTION;
28  virtual void anchor();
29
30protected:
31  OwningPtr<ObjectBuffer> Buffer;
32
33public:
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
40  virtual object::section_iterator begin_sections() const = 0;
41  virtual object::section_iterator end_sections() const  = 0;
42
43  virtual /* Triple::ArchType */ unsigned getArch() const = 0;
44
45  // Subclasses can override these methods to update the image with loaded
46  // addresses for sections and common symbols
47  virtual void updateSectionAddress(const object::SectionRef &Sec,
48				    uint64_t Addr) = 0;
49  virtual void updateSymbolAddress(const object::SymbolRef &Sym,
50				   uint64_t Addr) = 0;
51
52  virtual StringRef getData() const = 0;
53
54  virtual object::ObjectFile* getObjectFile() const = 0;
55
56  // Subclasses can override these methods to provide JIT debugging support
57  virtual void registerWithDebugger() = 0;
58  virtual void deregisterWithDebugger() = 0;
59};
60
61} // end namespace llvm
62
63#endif // LLVM_EXECUTIONENGINE_OBJECTIMAGE_H
64
65