65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
//===-- LoongArchELFObjectWriter.cpp - LoongArch ELF Writer ---*- C++ -*---===//
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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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#include "MCTargetDesc/LoongArchMCTargetDesc.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCELFObjectWriter.h"
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#include "llvm/MC/MCFixup.h"
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#include "llvm/MC/MCObjectWriter.h"
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#include "llvm/Support/ErrorHandling.h"
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using namespace llvm;
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namespace {
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class LoongArchELFObjectWriter : public MCELFObjectTargetWriter {
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public:
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LoongArchELFObjectWriter(uint8_t OSABI, bool Is64Bit);
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~LoongArchELFObjectWriter() override;
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// Return true if the given relocation must be with a symbol rather than
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// section plus offset.
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bool needsRelocateWithSymbol(const MCSymbol &Sym,
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unsigned Type) const override {
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return true;
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}
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protected:
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unsigned getRelocType(MCContext &Ctx, const MCValue &Target,
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const MCFixup &Fixup, bool IsPCRel) const override;
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};
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} // end namespace
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LoongArchELFObjectWriter::LoongArchELFObjectWriter(uint8_t OSABI, bool Is64Bit)
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: MCELFObjectTargetWriter(Is64Bit, OSABI, ELF::EM_LOONGARCH,
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/*HasRelocationAddend*/ true) {}
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LoongArchELFObjectWriter::~LoongArchELFObjectWriter() {}
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unsigned LoongArchELFObjectWriter::getRelocType(MCContext &Ctx,
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const MCValue &Target,
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const MCFixup &Fixup,
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bool IsPCRel) const {
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// Determine the type of the relocation
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unsigned Kind = Fixup.getTargetKind();
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if (Kind >= FirstLiteralRelocationKind)
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return Kind - FirstLiteralRelocationKind;
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switch (Kind) {
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// TODO: Implement this when we defined fixup kind.
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default:
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return ELF::R_LARCH_NONE;
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}
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}
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std::unique_ptr<MCObjectTargetWriter>
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llvm::createLoongArchELFObjectWriter(uint8_t OSABI, bool Is64Bit) {
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return std::make_unique<LoongArchELFObjectWriter>(OSABI, Is64Bit);
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}
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