1//===------ JITDwarfEmitter.h - Write dwarf tables into memory ------------===//
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 defines a JITDwarfEmitter object that is used by the JIT to
11// write dwarf tables to memory.
12//
13//===----------------------------------------------------------------------===//
14
15#ifndef LLVM_EXECUTION_ENGINE_JIT_DWARFEMITTER_H
16#define LLVM_EXECUTION_ENGINE_JIT_DWARFEMITTER_H
17
18namespace llvm {
19
20class Function;
21class JITCodeEmitter;
22class MachineFunction;
23class MachineModuleInfo;
24class MachineMove;
25class MCAsmInfo;
26class TargetData;
27class TargetMachine;
28class TargetRegisterInfo;
29
30class JITDwarfEmitter {
31  const TargetData* TD;
32  JITCodeEmitter* JCE;
33  const TargetRegisterInfo* RI;
34  const MCAsmInfo *MAI;
35  MachineModuleInfo* MMI;
36  JIT& Jit;
37  bool stackGrowthDirection;
38
39  unsigned char* EmitExceptionTable(MachineFunction* MF,
40                                    unsigned char* StartFunction,
41                                    unsigned char* EndFunction) const;
42
43  void EmitFrameMoves(intptr_t BaseLabelPtr,
44                      const std::vector<MachineMove> &Moves) const;
45
46  unsigned char* EmitCommonEHFrame(const Function* Personality) const;
47
48  unsigned char* EmitEHFrame(const Function* Personality,
49                             unsigned char* StartBufferPtr,
50                             unsigned char* StartFunction,
51                             unsigned char* EndFunction,
52                             unsigned char* ExceptionTable) const;
53
54public:
55
56  JITDwarfEmitter(JIT& jit);
57
58  unsigned char* EmitDwarfTable(MachineFunction& F,
59                                JITCodeEmitter& JCE,
60                                unsigned char* StartFunction,
61                                unsigned char* EndFunction,
62                                unsigned char* &EHFramePtr);
63
64
65  void setModuleInfo(MachineModuleInfo* Info) {
66    MMI = Info;
67  }
68};
69
70
71} // end namespace llvm
72
73#endif // LLVM_EXECUTION_ENGINE_JIT_DWARFEMITTER_H
74