forked from OSchip/llvm-project
64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
//===-- HexagonELFObjectWriter.cpp - Hexagon Target Descriptions ----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "Hexagon.h"
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#include "llvm/MC/MCAssembler.h"
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#include "llvm/MC/MCELFObjectWriter.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/raw_ostream.h"
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#define DEBUG_TYPE "hexagon-elf-writer"
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using namespace llvm;
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using namespace Hexagon;
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namespace {
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class HexagonELFObjectWriter : public MCELFObjectTargetWriter {
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private:
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StringRef CPU;
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public:
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HexagonELFObjectWriter(uint8_t OSABI, StringRef C);
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unsigned GetRelocType(MCValue const &Target, MCFixup const &Fixup,
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bool IsPCRel) const override;
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};
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}
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HexagonELFObjectWriter::HexagonELFObjectWriter(uint8_t OSABI, StringRef C)
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: MCELFObjectTargetWriter(/*Is64bit*/ false, OSABI, ELF::EM_HEXAGON,
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/*HasRelocationAddend*/ true),
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CPU(C) {}
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unsigned HexagonELFObjectWriter::GetRelocType(MCValue const &/*Target*/,
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MCFixup const &Fixup,
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bool IsPCRel) const {
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unsigned Type = (unsigned)ELF::R_HEX_NONE;
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llvm::MCFixupKind Kind = Fixup.getKind();
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switch (Kind) {
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default:
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DEBUG(dbgs() << "unrecognized relocation " << Fixup.getKind() << "\n");
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llvm_unreachable("Unimplemented Fixup kind!");
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break;
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case FK_Data_4:
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Type = (IsPCRel) ? ELF::R_HEX_32_PCREL : ELF::R_HEX_32;
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break;
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}
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return Type;
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}
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MCObjectWriter *llvm::createHexagonELFObjectWriter(raw_pwrite_stream &OS,
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uint8_t OSABI,
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StringRef CPU) {
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MCELFObjectTargetWriter *MOTW = new HexagonELFObjectWriter(OSABI, CPU);
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return createELFObjectWriter(MOTW, OS, /*IsLittleEndian*/ true);
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}
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