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Session object: Set OS/ABI

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This adapts LLVM's behavior of MCELFObjectTargetWriter::getOSABI [1].

[1]: 8c8a2679a2/llvm/include/llvm/MC/MCELFObjectWriter.h (L72-L86)
This commit is contained in:
Martin Kröning 2022-06-02 00:16:00 +02:00
parent f7d12b4eec
commit 21625e5730
3 changed files with 24 additions and 3 deletions
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2
compiler/rustc_codegen_ssa/Cargo.toml
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@ -41,6 +41,6 @@ rustc_target = { path = "../rustc_target" }
rustc_session = { path = "../rustc_session" }
[dependencies.object]
version = "0.28.4"
version = "0.29.0"
default-features = false
features = ["read_core", "elf", "macho", "pe", "unaligned", "archive", "write"]

10
compiler/rustc_codegen_ssa/src/back/metadata.rs
View file

@ -171,7 +171,15 @@ pub(crate) fn create_object_file(sess: &Session) -> Option<write::Object<'static
}
_ => 0,
};
file.flags = FileFlags::Elf { e_flags };
// adapted from LLVM's `MCELFObjectTargetWriter::getOSABI`
let os_abi = match sess.target.options.os.as_ref() {
"hermit" => elf::ELFOSABI_STANDALONE,
"freebsd" => elf::ELFOSABI_FREEBSD,
"solaris" => elf::ELFOSABI_SOLARIS,
_ => elf::ELFOSABI_NONE,
};
let abi_version = 0;
file.flags = FileFlags::Elf { os_abi, abi_version, e_flags };
Some(file)
}