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- //===-- WinException.h - Windows Exception Handling ----------*- C++ -*--===//
- //
- // The LLVM Compiler Infrastructure
- //
- // This file is distributed under the University of Illinois Open Source
- // License. See LICENSE.TXT for details.
- //
- //===----------------------------------------------------------------------===//
- //
- // This file contains support for writing windows exception info into asm files.
- //
- //===----------------------------------------------------------------------===//
- #ifndef LLVM_LIB_CODEGEN_ASMPRINTER_WIN64EXCEPTION_H
- #define LLVM_LIB_CODEGEN_ASMPRINTER_WIN64EXCEPTION_H
- #include "EHStreamer.h"
- namespace llvm {
- class Function;
- class GlobalValue;
- class MachineFunction;
- class MCExpr;
- struct WinEHFuncInfo;
- class LLVM_LIBRARY_VISIBILITY WinException : public EHStreamer {
- /// Per-function flag to indicate if personality info should be emitted.
- bool shouldEmitPersonality = false;
- /// Per-function flag to indicate if the LSDA should be emitted.
- bool shouldEmitLSDA = false;
- /// Per-function flag to indicate if frame moves info should be emitted.
- bool shouldEmitMoves = false;
- /// True if this is a 64-bit target and we should use image relative offsets.
- bool useImageRel32 = false;
- void emitCSpecificHandlerTable();
- /// Emit the EH table data for 32-bit and 64-bit functions using
- /// the __CxxFrameHandler3 personality.
- void emitCXXFrameHandler3Table(const MachineFunction *MF);
- /// Emit the EH table data for _except_handler3 and _except_handler4
- /// personality functions. These are only used on 32-bit and do not use CFI
- /// tables.
- void emitExceptHandlerTable(const MachineFunction *MF);
- void extendIP2StateTable(const MachineFunction *MF, const Function *ParentF,
- WinEHFuncInfo &FuncInfo);
- /// Emits the label used with llvm.x86.seh.recoverfp, which is used by
- /// outlined funclets.
- void emitEHRegistrationOffsetLabel(const WinEHFuncInfo &FuncInfo,
- StringRef FLinkageName);
- const MCExpr *create32bitRef(const MCSymbol *Value);
- const MCExpr *create32bitRef(const GlobalValue *GV);
- public:
- //===--------------------------------------------------------------------===//
- // Main entry points.
- //
- WinException(AsmPrinter *A);
- ~WinException() override;
- /// Emit all exception information that should come after the content.
- void endModule() override;
- /// Gather pre-function exception information. Assumes being emitted
- /// immediately after the function entry point.
- void beginFunction(const MachineFunction *MF) override;
- /// Gather and emit post-function exception information.
- void endFunction(const MachineFunction *) override;
- };
- }
- #endif
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