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//===- lib/ReaderWriter/ELF/Hexagon/HexagonLinkingContext.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_HEXAGON_HEXAGON_LINKING_CONTEXT_H
#define LLD_READER_WRITER_ELF_HEXAGON_HEXAGON_LINKING_CONTEXT_H
#include "OutputELFWriter.h"
#include "lld/ReaderWriter/ELFLinkingContext.h"
#include "llvm/Object/ELF.h"
#include "llvm/Support/ELF.h"
namespace lld {
namespace elf {
typedef llvm::object::ELFType<llvm::support::little, 2, false> HexagonELFType;
class HexagonLinkingContext final : public ELFLinkingContext {
public:
static std::unique_ptr<ELFLinkingContext> create(llvm::Triple);
HexagonLinkingContext(llvm::Triple triple);
void addPasses(PassManager &) override;
bool isDynamicRelocation(const Reference &r) const override {
if (r.kindNamespace() != Reference::KindNamespace::ELF)
return false;
switch (r.kindValue()) {
case llvm::ELF::R_HEX_RELATIVE:
case llvm::ELF::R_HEX_GLOB_DAT:
return true;
default:
return false;
}
}
bool isPLTRelocation(const Reference &r) const override {
if (r.kindNamespace() != Reference::KindNamespace::ELF)
return false;
switch (r.kindValue()) {
case llvm::ELF::R_HEX_JMP_SLOT:
return true;
default:
return false;
}
}
/// \brief Hexagon has only one relative relocation
/// a) for supporting relative relocs - R_HEX_RELATIVE
bool isRelativeReloc(const Reference &r) const override {
if (r.kindNamespace() != Reference::KindNamespace::ELF)
return false;
switch (r.kindValue()) {
case llvm::ELF::R_HEX_RELATIVE:
return true;
default:
return false;
}
}
};
template <class ELFT> void setHexagonELFHeader(ELFHeader<ELFT> &elfHeader) {
elfHeader.e_ident(llvm::ELF::EI_VERSION, 1);
elfHeader.e_ident(llvm::ELF::EI_OSABI, 0);
elfHeader.e_version(1);
elfHeader.e_flags(0x3);
}
} // elf
} // lld
#endif // LLD_READER_WRITER_ELF_HEXAGON_HEXAGON_LINKING_CONTEXT_H
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