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Do not specify an SDK version in object files

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This is unnecessary, since it ends up being overwritten when linking
anyhow, and it feels wrong to embed some arbitrary SDK version in here.
This commit is contained in:
Mads Marquart
2024-09-29 13:58:49 +02:00
parent 8964c48726
commit 6b06ceb2fd
4 changed files with 17 additions and 21 deletions
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10
compiler/rustc_codegen_ssa/src/back/metadata.rs
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@@ -402,13 +402,17 @@ fn macho_object_build_version_for_target(target: &Target) -> object::write::Mach
let platform =
rustc_target::spec::current_apple_platform(target).expect("unknown Apple target OS");
let min_os = rustc_target::spec::current_apple_deployment_target(target);
let (sdk_major, sdk_minor) =
rustc_target::spec::current_apple_sdk_version(platform).expect("unknown Apple target OS");
let mut build_version = object::write::MachOBuildVersion::default();
build_version.platform = platform;
build_version.minos = pack_version(min_os);
build_version.sdk = pack_version((sdk_major, sdk_minor, 0));
// The version here does not _really_ matter, since it is only used at runtime, and we specify
// it when linking the final binary, so we will omit the version. This is also what LLVM does,
// and the tooling also allows this (and shows the SDK version as `n/a`). Finally, it is the
// semantically correct choice, as the SDK has not influenced the binary generated by rustc at
// this point in time.
build_version.sdk = 0;
build_version
}