59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
//===-------- MipsELFStreamer.h - ELF Object Output -----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This is a custom MCELFStreamer which allows us to insert some hooks before
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// emitting data into an actual object file.
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//
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//===----------------------------------------------------------------------===//
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#ifndef MIPSELFSTREAMER_H
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#define MIPSELFSTREAMER_H
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#include "MipsOptionRecord.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/MC/MCELFStreamer.h"
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#include <memory>
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namespace llvm {
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class MCAsmBackend;
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class MCCodeEmitter;
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class MCContext;
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class MCSubtargetInfo;
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class MipsELFStreamer : public MCELFStreamer {
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SmallVector<std::unique_ptr<MipsOptionRecord>, 8> MipsOptionRecords;
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MipsRegInfoRecord *RegInfoRecord;
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public:
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MipsELFStreamer(MCContext &Context, MCAsmBackend &MAB, raw_ostream &OS,
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MCCodeEmitter *Emitter, const MCSubtargetInfo &STI)
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: MCELFStreamer(Context, MAB, OS, Emitter) {
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RegInfoRecord = new MipsRegInfoRecord(this, Context, STI);
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MipsOptionRecords.push_back(
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std::unique_ptr<MipsRegInfoRecord>(RegInfoRecord));
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}
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/// Overriding this function allows us to add arbitrary behaviour before the
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/// \p Inst is actually emitted. For example, we can inspect the operands and
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/// gather sufficient information that allows us to reason about the register
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/// usage for the translation unit.
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void EmitInstruction(const MCInst &Inst, const MCSubtargetInfo &STI) override;
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/// Emits all the option records stored up until the point it's called.
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void EmitMipsOptionRecords();
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};
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MCELFStreamer *createMipsELFStreamer(MCContext &Context, MCAsmBackend &MAB,
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raw_ostream &OS, MCCodeEmitter *Emitter,
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const MCSubtargetInfo &STI, bool RelaxAll,
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bool NoExecStack);
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} // namespace llvm.
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#endif
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