llvm::MCTargetStreamer Class Reference

Target specific streamer interface. More...

#include "llvm/MC/MCStreamer.h"

Inheritance diagram for llvm::MCTargetStreamer:

Public Member Functions
	MCTargetStreamer (MCStreamer &S)
virtual	~MCTargetStreamer ()
MCStreamer &	getStreamer ()
virtual void	emitLabel (MCSymbol *Symbol)
virtual void	emitAssignment (MCSymbol *Symbol, const MCExpr *Value)
virtual void	prettyPrintAsm (MCInstPrinter &InstPrinter, uint64_t Address, const MCInst &Inst, const MCSubtargetInfo &STI, raw_ostream &OS)
virtual void	emitDwarfFileDirective (StringRef Directive)
virtual void	changeSection (const MCSection *CurSection, MCSection *Section, uint32_t SubSection, raw_ostream &OS)
	Update streamer for a new active section.
virtual void	emitValue (const MCExpr *Value)
virtual void	emitRawBytes (StringRef Data)
	Emit the bytes in Data into the output.
virtual void	emitConstantPools ()
virtual void	finish ()

Protected Attributes
MCStreamer &	Streamer

Detailed Description

Target specific streamer interface.

This is used so that targets can implement support for target specific assembly directives.

If target foo wants to use this, it should implement 3 classes:

• FooTargetStreamer : public MCTargetStreamer
• FooTargetAsmStreamer : public FooTargetStreamer
• FooTargetELFStreamer : public FooTargetStreamer

FooTargetStreamer should have a pure virtual method for each directive. For example, for a ".bar symbol_name" directive, it should have virtual emitBar(const MCSymbol &Symbol) = 0;

The FooTargetAsmStreamer and FooTargetELFStreamer classes implement the method. The assembly streamer just prints ".bar symbol_name". The object streamer does whatever is needed to implement .bar in the object file.

In the assembly printer and parser the target streamer can be used by calling getTargetStreamer and casting it to FooTargetStreamer:

MCTargetStreamer &TS = OutStreamer.getTargetStreamer(); FooTargetStreamer &ATS = static_cast<FooTargetStreamer &>(TS);

The base classes FooTargetAsmStreamer and FooTargetELFStreamer should never be treated differently. Callers should always talk to a FooTargetStreamer.

Definition at line 94 of file MCStreamer.h.

Constructor & Destructor Documentation

MCTargetStreamer()

MCTargetStreamer::MCTargetStreamer

(

MCStreamer &

S

)

Definition at line 46 of file MCStreamer.cpp.

References llvm::MCStreamer::setTargetStreamer().

~MCTargetStreamer()

MCTargetStreamer::~MCTargetStreamer ( )

virtualdefault

Member Function Documentation

changeSection()

void MCTargetStreamer::changeSection ( const MCSection *  CurSection, MCSection *  Section, uint32_t  SubSection, raw_ostream &  OS  )

virtual

Update streamer for a new active section.

This is called by popSection and switchSection, if the current section changes.

Reimplemented in llvm::NVPTXTargetStreamer, and llvm::SPIRVTargetStreamer.

Definition at line 59 of file MCStreamer.cpp.

References llvm::MCContext::getAsmInfo(), llvm::MCStreamer::getContext(), llvm::MCContext::getTargetTriple(), OS, and Streamer.

emitAssignment()

void MCTargetStreamer::emitAssignment ( MCSymbol *  Symbol, const MCExpr *  Value  )

virtual

Reimplemented in llvm::MipsTargetELFStreamer.

Definition at line 91 of file MCStreamer.cpp.

Referenced by llvm::MCStreamer::emitAssignment().

emitConstantPools()

void MCTargetStreamer::emitConstantPools ( )

virtual

Reimplemented in llvm::ARMTargetStreamer, llvm::AArch64TargetStreamer, and llvm::SystemZTargetStreamer.

Definition at line 57 of file MCStreamer.cpp.

emitDwarfFileDirective()

void MCTargetStreamer::emitDwarfFileDirective ( StringRef  Directive )

virtual

Reimplemented in llvm::NVPTXTargetStreamer.

Definition at line 67 of file MCStreamer.cpp.

References llvm::MCStreamer::emitRawText(), and Streamer.

emitLabel()

void MCTargetStreamer::emitLabel ( MCSymbol *  Symbol )

virtual

Reimplemented in llvm::MipsTargetELFStreamer.

Definition at line 53 of file MCStreamer.cpp.

Referenced by llvm::MCStreamer::emitLabel().

emitRawBytes()

void MCTargetStreamer::emitRawBytes ( StringRef  Data )

virtual

Emit the bytes in Data into the output.

This is used to emit bytes in Data as sequence of .byte directives.

Reimplemented in llvm::NVPTXTargetStreamer.

Definition at line 79 of file MCStreamer.cpp.

References llvm::CallingConv::C, llvm::Data, llvm::MCStreamer::emitRawText(), llvm::MCContext::getAsmInfo(), llvm::MCStreamer::getContext(), llvm::MCAsmInfo::getData8bitsDirective(), OS, and Streamer.

Referenced by llvm::NVPTXTargetStreamer::emitRawBytes().

emitValue()

void MCTargetStreamer::emitValue ( const MCExpr *  Value )

virtual

Reimplemented in llvm::NVPTXTargetStreamer.

Definition at line 71 of file MCStreamer.cpp.

References llvm::MCStreamer::emitRawText(), llvm::MCContext::getAsmInfo(), llvm::MCStreamer::getContext(), OS, llvm::Value::print(), and Streamer.

Referenced by llvm::NVPTXTargetStreamer::emitValue().

finish()

void MCTargetStreamer::finish ( )

virtual

Reimplemented in llvm::AArch64TargetStreamer, llvm::AMDGPUTargetAsmStreamer, llvm::AMDGPUTargetELFStreamer, llvm::CSKYTargetStreamer, llvm::HexagonTargetStreamer, llvm::LoongArchTargetELFStreamer, llvm::MipsTargetELFStreamer, llvm::RISCVTargetELFStreamer, and llvm::RISCVTargetStreamer.

Definition at line 55 of file MCStreamer.cpp.

Referenced by llvm::LoongArchTargetELFStreamer::finish(), and llvm::MCStreamer::finish().

getStreamer()

MCStreamer & llvm::MCTargetStreamer::getStreamer ( )

inline

Definition at line 102 of file MCStreamer.h.

References Streamer.

Referenced by llvm::CSKYTargetStreamer::addConstantPoolEntry(), llvm::NVPTXTargetStreamer::changeSection(), llvm::NVPTXTargetStreamer::closeLastSection(), llvm::AArch64TargetWinCOFFStreamer::emitARM64WinCFIEpilogEnd(), llvm::AArch64TargetWinCOFFStreamer::emitARM64WinCFIEpilogStart(), llvm::AArch64TargetWinCOFFStreamer::emitARM64WinCFIPrologEnd(), llvm::AMDGPUAsmPrinter::emitFunctionBodyEnd(), llvm::MipsTargetStreamer::emitII(), llvm::AArch64TargetStreamer::emitInst(), llvm::ARMTargetStreamer::emitInst(), llvm::AArch64TargetStreamer::emitNoteSection(), llvm::MipsTargetStreamer::emitR(), llvm::MipsTargetStreamer::emitRRIII(), llvm::MipsTargetStreamer::emitRRRX(), llvm::MipsTargetStreamer::emitRRX(), llvm::MipsTargetStreamer::emitRX(), and llvm::NVPTXTargetStreamer::outputDwarfFileDirectives().

prettyPrintAsm()

void MCTargetStreamer::prettyPrintAsm ( MCInstPrinter &  InstPrinter, uint64_t  Address, const MCInst &  Inst, const MCSubtargetInfo &  STI, raw_ostream &  OS  )

virtual

Definition at line 1105 of file MCStreamer.cpp.

References llvm::Address, OS, and llvm::MCInstPrinter::printInst().

Member Data Documentation

Streamer

MCStreamer& llvm::MCTargetStreamer::Streamer

protected

Definition at line 96 of file MCStreamer.h.

Referenced by llvm::ARMTargetStreamer::addConstantPoolEntry(), llvm::AArch64TargetStreamer::addConstantPoolEntry(), changeSection(), llvm::AArch64TargetStreamer::emitAuthValue(), llvm::ARMTargetStreamer::emitConstantPools(), llvm::AArch64TargetStreamer::emitConstantPools(), llvm::SystemZTargetStreamer::emitConstantPools(), llvm::ARMTargetStreamer::emitCurrentConstantPool(), llvm::AArch64TargetStreamer::emitCurrentConstantPool(), llvm::CSKYTargetStreamer::emitCurrentConstantPool(), llvm::MipsTargetELFStreamer::emitDirectiveInsn(), emitDwarfFileDirective(), llvm::WebAssemblyTargetWasmStreamer::emitLocal(), emitRawBytes(), llvm::NVPTXTargetStreamer::emitRawBytes(), emitValue(), llvm::NVPTXTargetStreamer::emitValue(), llvm::WebAssemblyTargetStreamer::emitValueType(), llvm::CSKYTargetStreamer::finish(), llvm::MipsTargetELFStreamer::finish(), llvm::AMDGPUTargetStreamer::getContext(), getStreamer(), llvm::AVRELFStreamer::getStreamer(), llvm::CSKYTargetELFStreamer::getStreamer(), llvm::LoongArchTargetELFStreamer::getStreamer(), llvm::MipsTargetELFStreamer::getStreamer(), llvm::MSP430TargetELFStreamer::getStreamer(), llvm::RISCVTargetELFStreamer::getStreamer(), llvm::SparcTargetELFStreamer::getStreamer(), llvm::VETargetELFStreamer::getStreamer(), llvm::XtensaTargetELFStreamer::getStreamer(), and llvm::MSP430TargetELFStreamer::MSP430TargetELFStreamer().

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The documentation for this class was generated from the following files:

• include/llvm/MC/MCStreamer.h
• lib/MC/MCStreamer.cpp