contrib/llvm/lib/ExecutionEngine/JIT/JITDwarfEmitter.h

   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
  18 #include "llvm/Support/DataTypes.h"
  19 #include <vector>
  20
  21 namespace llvm {
  22
  23 class Function;
  24 class JIT;
  25 class JITCodeEmitter;
  26 class MachineFunction;
  27 class MachineModuleInfo;
  28 class MachineMove;
  29 class MCAsmInfo;
  30 class DataLayout;
  31 class TargetMachine;
  32 class TargetRegisterInfo;
  33
  34 class JITDwarfEmitter {
  35   const DataLayout* TD;
  36   JITCodeEmitter* JCE;
  37   const TargetRegisterInfo* RI;
  38   const MCAsmInfo *MAI;
  39   MachineModuleInfo* MMI;
  40   JIT& Jit;
  41   bool stackGrowthDirection;
  42
  43   unsigned char* EmitExceptionTable(MachineFunction* MF,
  44                                     unsigned char* StartFunction,
  45                                     unsigned char* EndFunction) const;
  46
  47   void EmitFrameMoves(intptr_t BaseLabelPtr,
  48                       const std::vector<MachineMove> &Moves) const;
  49
  50   unsigned char* EmitCommonEHFrame(const Function* Personality) const;
  51
  52   unsigned char* EmitEHFrame(const Function* Personality,
  53                              unsigned char* StartBufferPtr,
  54                              unsigned char* StartFunction,
  55                              unsigned char* EndFunction,
  56                              unsigned char* ExceptionTable) const;
  57
  58 public:
  59
  60   JITDwarfEmitter(JIT& jit);
  61
  62   unsigned char* EmitDwarfTable(MachineFunction& F,
  63                                 JITCodeEmitter& JCE,
  64                                 unsigned char* StartFunction,
  65                                 unsigned char* EndFunction,
  66                                 unsigned char* &EHFramePtr);
  67
  68
  69   void setModuleInfo(MachineModuleInfo* Info) {
  70     MMI = Info;
  71   }
  72 };
  73
  74
  75 } // end namespace llvm
  76
  77 #endif // LLVM_EXECUTION_ENGINE_JIT_DWARFEMITTER_H