81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
//===- lib/ReaderWriter/ELF/Mips/MipsTargetHandler.h ----------------------===//
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//
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// The LLVM Linker
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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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#ifndef LLD_READER_WRITER_ELF_MIPS_TARGET_HANDLER_H
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#define LLD_READER_WRITER_ELF_MIPS_TARGET_HANDLER_H
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#include "DefaultTargetHandler.h"
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#include "MipsLinkingContext.h"
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#include "MipsRelocationHandler.h"
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#include "MipsSectionChunks.h"
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#include "TargetLayout.h"
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namespace lld {
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namespace elf {
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/// \brief TargetLayout for Mips
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template <class ELFType>
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class MipsTargetLayout LLVM_FINAL : public TargetLayout<ELFType> {
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public:
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MipsTargetLayout(const MipsLinkingContext &ctx)
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: TargetLayout<ELFType>(ctx),
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_gotSection(new (_alloc) MipsGOTSection<ELFType>(ctx)) {}
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/// \brief GP offset relative to .got section.
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uint64_t getGPOffset() const { return 0x7FF0; }
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const MipsGOTSection<ELFType> &getGOTSection() const { return *_gotSection; }
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virtual AtomSection<ELFType> *
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createSection(StringRef name, int32_t type,
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DefinedAtom::ContentPermissions permissions,
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Layout::SectionOrder order) {
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if (type == DefinedAtom::typeGOT && name == ".got")
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return _gotSection;
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return DefaultLayout<ELFType>::createSection(name, type, permissions,
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order);
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}
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private:
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llvm::BumpPtrAllocator _alloc;
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MipsGOTSection<ELFType> *_gotSection;
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};
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/// \brief TargetHandler for Mips
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class MipsTargetHandler LLVM_FINAL
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: public DefaultTargetHandler<Mips32ElELFType> {
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public:
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MipsTargetHandler(MipsLinkingContext &targetInfo);
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uint64_t getGPDispSymAddr() const;
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virtual bool doesOverrideELFHeader();
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virtual void setELFHeader(ELFHeader<Mips32ElELFType> *elfHeader);
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virtual MipsTargetLayout<Mips32ElELFType> &targetLayout();
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virtual const MipsTargetRelocationHandler &getRelocationHandler() const;
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virtual LLD_UNIQUE_BUMP_PTR(DynamicTable<Mips32ElELFType>)
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createDynamicTable();
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virtual LLD_UNIQUE_BUMP_PTR(DynamicSymbolTable<Mips32ElELFType>)
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createDynamicSymbolTable();
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virtual bool createImplicitFiles(std::vector<std::unique_ptr<File>> &result);
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virtual void finalizeSymbolValues();
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virtual void registerRelocationNames(Registry ®istry);
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private:
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static const Registry::KindStrings kindStrings[];
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llvm::BumpPtrAllocator _alloc;
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MipsTargetLayout<Mips32ElELFType> _targetLayout;
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MipsTargetRelocationHandler _relocationHandler;
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AtomLayout *_gpDispSymAtom;
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};
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} // end namespace elf
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} // end namespace lld
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#endif
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