| //===-------- MipsELFStreamer.cpp - ELF Object Output ---------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "MipsELFStreamer.h" |
| #include "MipsTargetStreamer.h" |
| #include "llvm/MC/MCELF.h" |
| #include "llvm/MC/MCInst.h" |
| #include "llvm/Support/ELF.h" |
| |
| using namespace llvm; |
| |
| void MipsELFStreamer::EmitInstruction(const MCInst &Inst, |
| const MCSubtargetInfo &STI) { |
| MCELFStreamer::EmitInstruction(Inst, STI); |
| |
| MCContext &Context = getContext(); |
| const MCRegisterInfo *MCRegInfo = Context.getRegisterInfo(); |
| |
| for (unsigned OpIndex = 0; OpIndex < Inst.getNumOperands(); ++OpIndex) { |
| const MCOperand &Op = Inst.getOperand(OpIndex); |
| |
| if (!Op.isReg()) |
| continue; |
| |
| unsigned Reg = Op.getReg(); |
| RegInfoRecord->SetPhysRegUsed(Reg, MCRegInfo); |
| } |
| |
| createPendingLabelRelocs(); |
| } |
| |
| void MipsELFStreamer::createPendingLabelRelocs() { |
| MipsTargetELFStreamer *ELFTargetStreamer = |
| static_cast<MipsTargetELFStreamer *>(getTargetStreamer()); |
| |
| // FIXME: Also mark labels when in MIPS16 mode. |
| if (ELFTargetStreamer->isMicroMipsEnabled()) { |
| for (auto Label : Labels) { |
| MCSymbolData &Data = getOrCreateSymbolData(Label); |
| // The "other" values are stored in the last 6 bits of the second byte. |
| // The traditional defines for STO values assume the full byte and thus |
| // the shift to pack it. |
| MCELF::setOther(Data, ELF::STO_MIPS_MICROMIPS >> 2); |
| } |
| } |
| |
| Labels.clear(); |
| } |
| |
| void MipsELFStreamer::EmitLabel(MCSymbol *Symbol) { |
| MCELFStreamer::EmitLabel(Symbol); |
| Labels.push_back(Symbol); |
| } |
| |
| void MipsELFStreamer::SwitchSection(const MCSection * Section, |
| const MCExpr *Subsection) { |
| MCELFStreamer::SwitchSection(Section, Subsection); |
| Labels.clear(); |
| } |
| |
| void MipsELFStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size, |
| const SMLoc &Loc) { |
| MCELFStreamer::EmitValueImpl(Value, Size, Loc); |
| Labels.clear(); |
| } |
| |
| void MipsELFStreamer::EmitMipsOptionRecords() { |
| for (const auto &I : MipsOptionRecords) |
| I->EmitMipsOptionRecord(); |
| } |
| |
| MCELFStreamer *llvm::createMipsELFStreamer(MCContext &Context, |
| MCAsmBackend &MAB, |
| raw_pwrite_stream &OS, |
| MCCodeEmitter *Emitter, |
| bool RelaxAll) { |
| return new MipsELFStreamer(Context, MAB, OS, Emitter); |
| } |