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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
//===-- AVRAsmBackend.h - AVR Asm Backend --------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// \file The AVR assembly backend implementation.
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//
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//===----------------------------------------------------------------------===//
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//
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#ifndef LLVM_AVR_ASM_BACKEND_H
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#define LLVM_AVR_ASM_BACKEND_H
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#include "MCTargetDesc/AVRFixupKinds.h"
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#include "llvm/ADT/Triple.h"
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#include "llvm/MC/MCAsmBackend.h"
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namespace llvm {
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class MCAssembler;
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class MCObjectWriter;
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class Target;
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struct MCFixupKindInfo;
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/// Utilities for manipulating generated AVR machine code.
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class AVRAsmBackend : public MCAsmBackend {
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public:
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AVRAsmBackend(Triple::OSType OSType)
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: MCAsmBackend(support::little), OSType(OSType) {}
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void adjustFixupValue(const MCFixup &Fixup, const MCValue &Target,
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uint64_t &Value, MCContext *Ctx = nullptr) const;
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std::unique_ptr<MCObjectTargetWriter>
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createObjectTargetWriter() const override;
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void applyFixup(const MCAssembler &Asm, const MCFixup &Fixup,
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const MCValue &Target, MutableArrayRef<char> Data,
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uint64_t Value, bool IsResolved,
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const MCSubtargetInfo *STI) const override;
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const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const override;
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unsigned getNumFixupKinds() const override {
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return AVR::NumTargetFixupKinds;
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}
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bool mayNeedRelaxation(const MCInst &Inst,
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const MCSubtargetInfo &STI) const override {
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return false;
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}
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bool fixupNeedsRelaxation(const MCFixup &Fixup, uint64_t Value,
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const MCRelaxableFragment *DF,
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const MCAsmLayout &Layout) const override {
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llvm_unreachable("RelaxInstruction() unimplemented");
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return false;
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}
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void relaxInstruction(const MCInst &Inst, const MCSubtargetInfo &STI,
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MCInst &Res) const override {}
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bool writeNopData(raw_ostream &OS, uint64_t Count) const override;
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bool shouldForceRelocation(const MCAssembler &Asm, const MCFixup &Fixup,
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const MCValue &Target) override;
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private:
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Triple::OSType OSType;
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};
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} // end namespace llvm
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#endif // LLVM_AVR_ASM_BACKEND_H
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