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Rollup merge of #80215 - visigoth:issue-80202-fix, r=estebank

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Use -target when linking binaries for Mac Catalyst

When running `rustc` with `-target x86_64-apple-ios-macabi`, the linker
eventually gets run with `-arch x86_64`, because the linker back end splits the
LLVM target triple and uses the first token as the target architecture. However,
this does not work for the Mac Catalyst ABI, which is a separate target from
Darwin.

Specifying the full target triple with `-target` allows Mac Catalyst binaries to
link and run.

closes #80202
This commit is contained in:
Yuki Okushi 2021-01-29 09:17:29 +09:00 committed by GitHub
commit a3c060c7f5
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1 changed files with 7 additions and 2 deletions
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9
compiler/rustc_codegen_ssa/src/back/link.rs
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@ -2203,8 +2203,13 @@ fn add_apple_sdk(cmd: &mut dyn Linker, sess: &Session, flavor: LinkerFlavor) {
return;
}
};
let arch_name = llvm_target.split('-').next().expect("LLVM target must have a hyphen");
cmd.args(&["-arch", arch_name, "-isysroot", &sdk_root, "-Wl,-syslibroot", &sdk_root]);
if llvm_target.contains("macabi") {
cmd.args(&["-target", llvm_target])
} else {
let arch_name = llvm_target.split('-').next().expect("LLVM target must have a hyphen");
cmd.args(&["-arch", arch_name])
}
cmd.args(&["-isysroot", &sdk_root, "-Wl,-syslibroot", &sdk_root]);
}
fn get_apple_sdk_root(sdk_name: &str) -> Result<String, String> {