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Use -target when linking binaries for Mac Catalyst #80215

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merged 1 commit into from Jan 29, 2021

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visigoth
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@visigoth visigoth commented Dec 20, 2020

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

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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @estebank (or someone else) soon.

If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes.

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Dec 20, 2020
@JohnCSimon JohnCSimon added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jan 11, 2021
@visigoth
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is there anything blocking this PR from being merged?

@visigoth
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ping?

@estebank
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@visigoth apologies for the delay. I was offline for an extended period but the bot wasn't aware of that.

@bors r+

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bors commented Jan 27, 2021

📌 Commit 8553aee has been approved by estebank

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jan 27, 2021
Dylan-DPC-zz pushed a commit to Dylan-DPC-zz/rust that referenced this pull request Jan 28, 2021
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 rust-lang#80202
bors added a commit to rust-lang-ci/rust that referenced this pull request Jan 29, 2021
Rollup of 10 pull requests

Successful merges:

 - rust-lang#79570 (rustc: Stabilize `-Zrun-dsymutil` as `-Csplit-debuginfo`)
 - rust-lang#79819 (Add `SEMICOLON_IN_EXPRESSIONS_FROM_MACROS` lint)
 - rust-lang#79991 (rustdoc: Render HRTB correctly for bare functions)
 - rust-lang#80215 (Use -target when linking binaries for Mac Catalyst)
 - rust-lang#81158 (Point to span of upvar making closure FnMut)
 - rust-lang#81176 (Improve safety of `LateContext::qpath_res`)
 - rust-lang#81287 (Split rustdoc JSON types into separately versioned crate)
 - rust-lang#81306 (Fuse inner iterator in FlattenCompat and improve related tests)
 - rust-lang#81333 (clean up some const error reporting around promoteds)
 - rust-lang#81459 (Fix rustdoc text selection for page titles)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit a3c060c into rust-lang:master Jan 29, 2021
@rustbot rustbot added this to the 1.51.0 milestone Jan 29, 2021
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rustc does not invoke ld with appropriate -target for linking a mac catalyst binary
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