1 //===-- Win64Exception.h - Windows Exception Handling ----------*- C++ -*--===// 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 contains support for writing windows exception info into asm files. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_CODEGEN_ASMPRINTER_WIN64EXCEPTION_H 15 #define LLVM_LIB_CODEGEN_ASMPRINTER_WIN64EXCEPTION_H 16 17 #include "EHStreamer.h" 18 19 namespace llvm { 20 class GlobalValue; 21 class MachineFunction; 22 class MCExpr; 23 24 class Win64Exception : public EHStreamer { 25 /// Per-function flag to indicate if personality info should be emitted. 26 bool shouldEmitPersonality; 27 28 /// Per-function flag to indicate if the LSDA should be emitted. 29 bool shouldEmitLSDA; 30 31 /// Per-function flag to indicate if frame moves info should be emitted. 32 bool shouldEmitMoves; 33 34 void emitCSpecificHandlerTable(); 35 36 void emitCXXFrameHandler3Table(const MachineFunction *MF); 37 38 const MCExpr *createImageRel32(const MCSymbol *Value); 39 const MCExpr *createImageRel32(const GlobalValue *GV); 40 41 public: 42 //===--------------------------------------------------------------------===// 43 // Main entry points. 44 // 45 Win64Exception(AsmPrinter *A); 46 ~Win64Exception() override; 47 48 /// Emit all exception information that should come after the content. 49 void endModule() override; 50 51 /// Gather pre-function exception information. Assumes being emitted 52 /// immediately after the function entry point. 53 void beginFunction(const MachineFunction *MF) override; 54 55 /// Gather and emit post-function exception information. 56 void endFunction(const MachineFunction *) override; 57 }; 58 } 59 60 #endif 61 62