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[lldb] add required for lldb RISCV relocations in MCJIT #126266

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Merged
merged 1 commit into from
Apr 14, 2025
Merged

[lldb] add required for lldb RISCV relocations in MCJIT #126266

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3 changes: 3 additions & 0 deletions llvm/include/llvm/Support/Endian.h
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Original file line number Diff line number Diff line change
Expand Up @@ -277,6 +277,9 @@ struct packed_endian_specific_integral {

} // end namespace detail

using ulittle8_t =
detail::packed_endian_specific_integral<uint8_t, llvm::endianness::little,
unaligned>;
using ulittle16_t =
detail::packed_endian_specific_integral<uint16_t, llvm::endianness::little,
unaligned>;
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25 changes: 25 additions & 0 deletions llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1306,6 +1306,11 @@ void RuntimeDyldELF::resolveRISCVRelocation(const SectionEntry &Section,
Ref = Value + Addend;
break;
}
case ELF::R_RISCV_ADD8: {
auto Ref = support::ulittle8_t::ref(Section.getAddressWithOffset(Offset));
Ref = Ref + Value + Addend;
break;
}
case ELF::R_RISCV_ADD16: {
auto Ref = support::ulittle16_t::ref(Section.getAddressWithOffset(Offset));
Ref = Ref + Value + Addend;
Expand All @@ -1321,6 +1326,11 @@ void RuntimeDyldELF::resolveRISCVRelocation(const SectionEntry &Section,
Ref = Ref + Value + Addend;
break;
}
case ELF::R_RISCV_SUB8: {
auto Ref = support::ulittle8_t::ref(Section.getAddressWithOffset(Offset));
Ref = Ref - Value - Addend;
break;
}
case ELF::R_RISCV_SUB16: {
auto Ref = support::ulittle16_t::ref(Section.getAddressWithOffset(Offset));
Ref = Ref - Value - Addend;
Expand All @@ -1336,6 +1346,21 @@ void RuntimeDyldELF::resolveRISCVRelocation(const SectionEntry &Section,
Ref = Ref - Value - Addend;
break;
}
case ELF::R_RISCV_SET8: {
auto Ref = support::ulittle8_t::ref(Section.getAddressWithOffset(Offset));
Ref = Value + Addend;
break;
}
case ELF::R_RISCV_SET16: {
auto Ref = support::ulittle16_t::ref(Section.getAddressWithOffset(Offset));
Ref = Value + Addend;
break;
}
case ELF::R_RISCV_SET32: {
auto Ref = support::ulittle32_t::ref(Section.getAddressWithOffset(Offset));
Ref = Value + Addend;
break;
}
}
}

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