class WinCFGuard

Declaration

class WinCFGuard : public AsmPrinterHandler { /* full declaration omitted */ };

Description

Collects and handles AsmPrinter objects required to build debug or EH information.

Declared at: llvm/lib/CodeGen/AsmPrinter/WinCFGuard.h:23

Inherits from: AsmPrinterHandler

Member Variables

private llvm::AsmPrinter* Asm

Target of directive emission.

private std::vector<const MCSymbol*> LongjmpTargets

Method Overview

• public WinCFGuard(llvm::AsmPrinter * A)
• public void beginFunction(const llvm::MachineFunction * MF)
• public void beginInstruction(const llvm::MachineInstr * MI)
• public void endFunction(const llvm::MachineFunction * MF)
• public void endInstruction()
• public void endModule()
• private llvm::MCSymbol * lookupImpSymbol(const llvm::MCSymbol * Sym)
• public void setSymbolSize(const llvm::MCSymbol * Sym, uint64_t Size)
• public ~WinCFGuard()

Inherited from AsmPrinterHandler:

• public beginBasicBlock
• public beginFragment
• public beginFunclet
• public beginFunction
• public beginInstruction
• public beginModule
• public endBasicBlock
• public endFragment
• public endFunclet
• public endFunction
• public endInstruction
• public endModule
• public markFunctionEnd
• public setSymbolSize

Methods

¶WinCFGuard(llvm::AsmPrinter* A)

Declared at: llvm/lib/CodeGen/AsmPrinter/WinCFGuard.h:30

Parameters

llvm::AsmPrinter* A

¶void beginFunction(
    const llvm::MachineFunction* MF)

Description

Gather pre-function debug information. Every beginFunction(MF) call should be followed by an endFunction(MF) call.

Declared at: llvm/lib/CodeGen/AsmPrinter/WinCFGuard.h:41

Parameters

const llvm::MachineFunction* MF

¶void beginInstruction(
    const llvm::MachineInstr* MI)

Description

Process beginning of an instruction.

Declared at: llvm/lib/CodeGen/AsmPrinter/WinCFGuard.h:49

Parameters

const llvm::MachineInstr* MI

¶void endFunction(const llvm::MachineFunction* MF)

Description

Gather post-function debug information. Please note that some AsmPrinter implementations may not call beginFunction at all.

Declared at: llvm/lib/CodeGen/AsmPrinter/WinCFGuard.h:46

Parameters

const llvm::MachineFunction* MF

¶void endInstruction()

Description

Process end of an instruction.

Declared at: llvm/lib/CodeGen/AsmPrinter/WinCFGuard.h:52

¶void endModule()

Description

Emit the Control Flow Guard function ID table.

Declared at: llvm/lib/CodeGen/AsmPrinter/WinCFGuard.h:36

¶llvm::MCSymbol* lookupImpSymbol(
    const llvm::MCSymbol* Sym)

Declared at: llvm/lib/CodeGen/AsmPrinter/WinCFGuard.h:27

Parameters

const llvm::MCSymbol* Sym

¶void setSymbolSize(const llvm::MCSymbol* Sym,
                   uint64_t Size)

Description

For symbols that have a size designated (e.g. common symbols), this tracks that size.

Declared at: llvm/lib/CodeGen/AsmPrinter/WinCFGuard.h:33

Parameters

const llvm::MCSymbol* Sym

uint64_t Size

¶~WinCFGuard()

Description

Pin vtable to this file.

Declared at: llvm/lib/CodeGen/AsmPrinter/WinCFGuard.h:31