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//===- lib/ReaderWriter/ELF/Mips/MipsLinkingContext.h ---------------------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLD_READER_WRITER_ELF_MIPS_MIPS_LINKING_CONTEXT_H
#define LLD_READER_WRITER_ELF_MIPS_MIPS_LINKING_CONTEXT_H
#include "MipsELFFlagsMerger.h"
#include "lld/ReaderWriter/ELFLinkingContext.h"
namespace lld {
namespace elf {
/// \brief Mips internal references.
enum {
/// \brief Do nothing but mark GOT entry as a global one.
LLD_R_MIPS_GLOBAL_GOT = 1024,
/// \brief Apply high 16 bits of symbol + addend.
LLD_R_MIPS_32_HI16 = 1025,
/// \brief The same as R_MIPS_26 but for global symbols.
LLD_R_MIPS_GLOBAL_26 = 1026,
/// \brief Setup hi 16 bits using the symbol this reference refers to.
LLD_R_MIPS_HI16 = 1027,
/// \brief Setup low 16 bits using the symbol this reference refers to.
LLD_R_MIPS_LO16 = 1028,
/// \brief Represents a reference between PLT and dynamic symbol.
LLD_R_MIPS_STO_PLT = 1029,
/// \brief The same as R_MICROMIPS_26_S1 but for global symbols.
LLD_R_MICROMIPS_GLOBAL_26_S1 = 1030,
/// \brief Apply high 32+16 bits of symbol + addend.
LLD_R_MIPS_64_HI16 = 1031,
};
typedef llvm::object::ELFType<llvm::support::little, 2, false> Mips32ELType;
typedef llvm::object::ELFType<llvm::support::little, 2, true> Mips64ELType;
typedef llvm::object::ELFType<llvm::support::big, 2, false> Mips32BEType;
typedef llvm::object::ELFType<llvm::support::big, 2, true> Mips64BEType;
class MipsLinkingContext final : public ELFLinkingContext {
public:
static std::unique_ptr<ELFLinkingContext> create(llvm::Triple);
MipsLinkingContext(llvm::Triple triple);
uint32_t getMergedELFFlags() const;
MipsELFFlagsMerger &getELFFlagsMerger();
// ELFLinkingContext
uint64_t getBaseAddress() const override;
StringRef entrySymbolName() const override;
StringRef getDefaultInterpreter() const override;
void addPasses(PassManager &pm) override;
bool isRelaOutputFormat() const override { return false; }
bool isDynamicRelocation(const Reference &r) const override;
bool isCopyRelocation(const Reference &r) const override;
bool isPLTRelocation(const Reference &r) const override;
private:
MipsELFFlagsMerger _flagsMerger;
};
} // elf
} // lld
#endif
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