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Differential D132108 Diff 454155 llvm/lib/Target/LoongArch/MCTargetDesc/LoongArchELFObjectWriter.cpp

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llvm/lib/Target/LoongArch/MCTargetDesc/LoongArchELFObjectWriter.cpp

//===-- LoongArchELFObjectWriter.cpp - LoongArch ELF Writer ---*- C++ -*---===// //===-- LoongArchELFObjectWriter.cpp - LoongArch ELF Writer ---*- C++ -*---===//
// //
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information. // See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
#include "MCTargetDesc/LoongArchFixupKinds.h"
#include "MCTargetDesc/LoongArchMCTargetDesc.h" #include "MCTargetDesc/LoongArchMCTargetDesc.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/MC/MCContext.h" #include "llvm/MC/MCContext.h"
#include "llvm/MC/MCELFObjectWriter.h" #include "llvm/MC/MCELFObjectWriter.h"
#include "llvm/MC/MCFixup.h" #include "llvm/MC/MCFixup.h"
#include "llvm/MC/MCObjectWriter.h" #include "llvm/MC/MCObjectWriter.h"
#include "llvm/Support/ErrorHandling.h" #include "llvm/Support/ErrorHandling.h"
using namespace llvm; using namespace llvm;
Show All 29 Linesunsigned LoongArchELFObjectWriter::getRelocType(MCContext &Ctx,
bool IsPCRel) const { bool IsPCRel) const {
// Determine the type of the relocation // Determine the type of the relocation
unsigned Kind = Fixup.getTargetKind(); unsigned Kind = Fixup.getTargetKind();
if (Kind >= FirstLiteralRelocationKind) if (Kind >= FirstLiteralRelocationKind)
return Kind - FirstLiteralRelocationKind; return Kind - FirstLiteralRelocationKind;
switch (Kind) { switch (Kind) {
// TODO: Implement this when we defined fixup kind.
default: default:
Ctx.reportError(Fixup.getLoc(), "Unsupported relocation type");
return ELF::R_LARCH_NONE; return ELF::R_LARCH_NONE;
case FK_Data_1:
Ctx.reportError(Fixup.getLoc(), "1-byte data relocations not supported");
return ELF::R_LARCH_NONE;
case FK_Data_2:
Ctx.reportError(Fixup.getLoc(), "2-byte data relocations not supported");
return ELF::R_LARCH_NONE;
case FK_Data_4:
return ELF::R_LARCH_32;
case FK_Data_8:
return ELF::R_LARCH_64;
case LoongArch::fixup_loongarch_pcala_hi20:
return ELF::R_LARCH_PCALA_HI20;
case LoongArch::fixup_loongarch_pcala_lo12:
return ELF::R_LARCH_PCALA_LO12;
case LoongArch::fixup_loongarch_b26:
return ELF::R_LARCH_B26;
// TODO: Handle more fixup-kinds.
} }
} }
std::unique_ptr<MCObjectTargetWriter> std::unique_ptr<MCObjectTargetWriter>
llvm::createLoongArchELFObjectWriter(uint8_t OSABI, bool Is64Bit) { llvm::createLoongArchELFObjectWriter(uint8_t OSABI, bool Is64Bit) {
return std::make_unique<LoongArchELFObjectWriter>(OSABI, Is64Bit); return std::make_unique<LoongArchELFObjectWriter>(OSABI, Is64Bit);
} }