LLVM 19.0.0git
Public Member Functions | Protected Attributes | List of all members
llvm::MCTargetStreamer Class Reference

Target specific streamer interface. More...

#include "llvm/MC/MCStreamer.h"

Inheritance diagram for llvm::MCTargetStreamer:
Inheritance graph

Public Member Functions

 MCTargetStreamer (MCStreamer &S)
virtual ~MCTargetStreamer ()
MCStreamergetStreamer ()
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, const MCExpr *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


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 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 93 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 ( )

Member Function Documentation

◆ changeSection()

void MCTargetStreamer::changeSection ( const MCSection CurSection,
MCSection Section,
const MCExpr SubSection,
raw_ostream OS 

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 

Reimplemented in llvm::MipsTargetELFStreamer.

Definition at line 92 of file MCStreamer.cpp.

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

◆ emitConstantPools()

void MCTargetStreamer::emitConstantPools ( )

◆ emitDwarfFileDirective()

void MCTargetStreamer::emitDwarfFileDirective ( StringRef  Directive)

Reimplemented in llvm::NVPTXTargetStreamer.

Definition at line 68 of file MCStreamer.cpp.

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

◆ emitLabel()

void MCTargetStreamer::emitLabel ( MCSymbol Symbol)

Reimplemented in llvm::MipsTargetELFStreamer.

Definition at line 53 of file MCStreamer.cpp.

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

◆ emitRawBytes()

void MCTargetStreamer::emitRawBytes ( StringRef  Data)

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 80 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)

◆ finish()

void MCTargetStreamer::finish ( )

◆ getStreamer()

MCStreamer & llvm::MCTargetStreamer::getStreamer ( )

◆ prettyPrintAsm()

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

Definition at line 1068 of file MCStreamer.cpp.

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

Member Data Documentation

◆ Streamer

MCStreamer& llvm::MCTargetStreamer::Streamer

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