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loongarch: Fix ELF header flags #112550

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merged 1 commit into from
Jul 1, 2023
Merged

loongarch: Fix ELF header flags #112550

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15 changes: 13 additions & 2 deletions compiler/rustc_codegen_ssa/src/back/metadata.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -284,8 +284,19 @@ pub(crate) fn create_object_file(sess: &Session) -> Option<write::Object<'static
e_flags
}
Architecture::LoongArch64 => {
// Source: https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html#_e_flags_identifies_abi_type_and_version
elf::EF_LARCH_OBJABI_V1 | elf::EF_LARCH_ABI_DOUBLE_FLOAT
// Source: https://github.com/loongson/la-abi-specs/blob/release/laelf.adoc#e_flags-identifies-abi-type-and-version
let mut e_flags: u32 = elf::EF_LARCH_OBJABI_V1;
let features = &sess.target.options.features;

// Select the appropriate floating-point ABI
if features.contains("+d") {
e_flags |= elf::EF_LARCH_ABI_DOUBLE_FLOAT;
} else if features.contains("+f") {
e_flags |= elf::EF_LARCH_ABI_SINGLE_FLOAT;
} else {
e_flags |= elf::EF_LARCH_ABI_SOFT_FLOAT;
}
e_flags
}
_ => 0,
};
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