1//===-- AVRAsmBackend.h - AVR Asm Backend --------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// \file The AVR assembly backend implementation.
10//
11//===----------------------------------------------------------------------===//
12//
13
14#ifndef LLVM_AVR_ASM_BACKEND_H
15#define LLVM_AVR_ASM_BACKEND_H
16
17#include "MCTargetDesc/AVRFixupKinds.h"
18
19#include "llvm/MC/MCAsmBackend.h"
20#include "llvm/TargetParser/Triple.h"
21
22namespace llvm {
23
24class MCAssembler;
25class MCContext;
26struct MCFixupKindInfo;
27
28/// Utilities for manipulating generated AVR machine code.
29class AVRAsmBackend : public MCAsmBackend {
30public:
31 AVRAsmBackend(Triple::OSType OSType)
32 : MCAsmBackend(llvm::endianness::little), OSType(OSType) {}
33
34 void adjustFixupValue(const MCFixup &Fixup, const MCValue &Target,
35 uint64_t &Value, MCContext *Ctx = nullptr) const;
36
37 std::unique_ptr<MCObjectTargetWriter>
38 createObjectTargetWriter() const override;
39
40 void applyFixup(const MCFragment &, const MCFixup &, const MCValue &Target,
41 MutableArrayRef<char> Data, uint64_t Value,
42 bool IsResolved) override;
43
44 std::optional<MCFixupKind> getFixupKind(StringRef Name) const override;
45 MCFixupKindInfo getFixupKindInfo(MCFixupKind Kind) const override;
46
47 bool writeNopData(raw_ostream &OS, uint64_t Count,
48 const MCSubtargetInfo *STI) const override;
49
50 bool forceRelocation(const MCFragment &F, const MCFixup &Fixup,
51 const MCValue &Target);
52
53private:
54 Triple::OSType OSType;
55};
56
57} // end namespace llvm
58
59#endif // LLVM_AVR_ASM_BACKEND_H
60