109467b48Spatrick //===-- AVRAsmBackend.h - AVR Asm Backend --------------------------------===// 209467b48Spatrick // 309467b48Spatrick // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 409467b48Spatrick // See https://llvm.org/LICENSE.txt for license information. 509467b48Spatrick // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 609467b48Spatrick // 709467b48Spatrick //===----------------------------------------------------------------------===// 809467b48Spatrick // 909467b48Spatrick // \file The AVR assembly backend implementation. 1009467b48Spatrick // 1109467b48Spatrick //===----------------------------------------------------------------------===// 1209467b48Spatrick // 1309467b48Spatrick 1409467b48Spatrick #ifndef LLVM_AVR_ASM_BACKEND_H 1509467b48Spatrick #define LLVM_AVR_ASM_BACKEND_H 1609467b48Spatrick 1709467b48Spatrick #include "MCTargetDesc/AVRFixupKinds.h" 1809467b48Spatrick 1909467b48Spatrick #include "llvm/ADT/Triple.h" 2009467b48Spatrick #include "llvm/MC/MCAsmBackend.h" 2109467b48Spatrick 2209467b48Spatrick namespace llvm { 2309467b48Spatrick 2409467b48Spatrick class MCAssembler; 2573471bf0Spatrick class MCContext; 2609467b48Spatrick struct MCFixupKindInfo; 2709467b48Spatrick 2809467b48Spatrick /// Utilities for manipulating generated AVR machine code. 2909467b48Spatrick class AVRAsmBackend : public MCAsmBackend { 3009467b48Spatrick public: AVRAsmBackend(Triple::OSType OSType)3109467b48Spatrick AVRAsmBackend(Triple::OSType OSType) 3209467b48Spatrick : MCAsmBackend(support::little), OSType(OSType) {} 3309467b48Spatrick 3409467b48Spatrick void adjustFixupValue(const MCFixup &Fixup, const MCValue &Target, 3509467b48Spatrick uint64_t &Value, MCContext *Ctx = nullptr) const; 3609467b48Spatrick 3709467b48Spatrick std::unique_ptr<MCObjectTargetWriter> 3809467b48Spatrick createObjectTargetWriter() const override; 3909467b48Spatrick 4009467b48Spatrick void applyFixup(const MCAssembler &Asm, const MCFixup &Fixup, 4109467b48Spatrick const MCValue &Target, MutableArrayRef<char> Data, 4209467b48Spatrick uint64_t Value, bool IsResolved, 4309467b48Spatrick const MCSubtargetInfo *STI) const override; 4409467b48Spatrick 45*d415bd75Srobert std::optional<MCFixupKind> getFixupKind(StringRef Name) const override; 4609467b48Spatrick const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const override; 4709467b48Spatrick getNumFixupKinds()4809467b48Spatrick unsigned getNumFixupKinds() const override { 4909467b48Spatrick return AVR::NumTargetFixupKinds; 5009467b48Spatrick } 5109467b48Spatrick fixupNeedsRelaxation(const MCFixup & Fixup,uint64_t Value,const MCRelaxableFragment * DF,const MCAsmLayout & Layout)5209467b48Spatrick bool fixupNeedsRelaxation(const MCFixup &Fixup, uint64_t Value, 5309467b48Spatrick const MCRelaxableFragment *DF, 5409467b48Spatrick const MCAsmLayout &Layout) const override { 5509467b48Spatrick llvm_unreachable("RelaxInstruction() unimplemented"); 5609467b48Spatrick return false; 5709467b48Spatrick } 5809467b48Spatrick 59*d415bd75Srobert bool writeNopData(raw_ostream &OS, uint64_t Count, 60*d415bd75Srobert const MCSubtargetInfo *STI) const override; 6109467b48Spatrick 6209467b48Spatrick bool shouldForceRelocation(const MCAssembler &Asm, const MCFixup &Fixup, 6309467b48Spatrick const MCValue &Target) override; 6409467b48Spatrick 6509467b48Spatrick private: 6609467b48Spatrick Triple::OSType OSType; 6709467b48Spatrick }; 6809467b48Spatrick 6909467b48Spatrick } // end namespace llvm 7009467b48Spatrick 7109467b48Spatrick #endif // LLVM_AVR_ASM_BACKEND_H 72