1 //===-- LanaiELFObjectWriter.cpp - Lanai ELF Writer -----------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "MCTargetDesc/LanaiBaseInfo.h"
11 #include "MCTargetDesc/LanaiFixupKinds.h"
12 #include "llvm/MC/MCELFObjectWriter.h"
13 #include "llvm/Support/ELF.h"
14 #include "llvm/Support/ErrorHandling.h"
20 class LanaiELFObjectWriter : public MCELFObjectTargetWriter {
22 explicit LanaiELFObjectWriter(uint8_t OSABI);
24 ~LanaiELFObjectWriter() override = default;
27 unsigned getRelocType(MCContext &Ctx, const MCValue &Target,
28 const MCFixup &Fixup, bool IsPCRel) const override;
29 bool needsRelocateWithSymbol(const MCSymbol &SD,
30 unsigned Type) const override;
33 } // end anonymous namespace
35 LanaiELFObjectWriter::LanaiELFObjectWriter(uint8_t OSABI)
36 : MCELFObjectTargetWriter(/*Is64Bit_=*/false, OSABI, ELF::EM_LANAI,
37 /*HasRelocationAddend=*/true) {}
39 unsigned LanaiELFObjectWriter::getRelocType(MCContext & /*Ctx*/,
40 const MCValue & /*Target*/,
42 bool /*IsPCRel*/) const {
44 unsigned Kind = static_cast<unsigned>(Fixup.getKind());
46 case Lanai::FIXUP_LANAI_21:
47 Type = ELF::R_LANAI_21;
49 case Lanai::FIXUP_LANAI_21_F:
50 Type = ELF::R_LANAI_21_F;
52 case Lanai::FIXUP_LANAI_25:
53 Type = ELF::R_LANAI_25;
55 case Lanai::FIXUP_LANAI_32:
57 Type = ELF::R_LANAI_32;
59 case Lanai::FIXUP_LANAI_HI16:
60 Type = ELF::R_LANAI_HI16;
62 case Lanai::FIXUP_LANAI_LO16:
63 Type = ELF::R_LANAI_LO16;
65 case Lanai::FIXUP_LANAI_NONE:
66 Type = ELF::R_LANAI_NONE;
70 llvm_unreachable("Invalid fixup kind!");
75 bool LanaiELFObjectWriter::needsRelocateWithSymbol(const MCSymbol & /*SD*/,
76 unsigned Type) const {
79 case ELF::R_LANAI_21_F:
82 case ELF::R_LANAI_HI16:
89 MCObjectWriter *llvm::createLanaiELFObjectWriter(raw_pwrite_stream &OS,
91 MCELFObjectTargetWriter *MOTW = new LanaiELFObjectWriter(OSABI);
92 return createELFObjectWriter(MOTW, OS, /*IsLittleEndian=*/false);