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rust/compiler/rustc_codegen_ssa
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Jacob Pratt 0b40e6e2cf
Rollup merge of #139010 - madsmtm:parse-xcrun-better, r=wesleywiser 
Improve `xcrun` error handling

The compiler invokes `xcrun` on macOS when linking Apple targets, to find the Xcode SDK which contain all the necessary linker stubs. The error messages that `xcrun` outputs aren't always that great though, so this PR tries to improve that by providing extra context when an error occurs.

Fixes https://github.com/rust-lang/rust/issues/56829.
Fixes https://github.com/rust-lang/rust/issues/84534.
Part of https://github.com/rust-lang/rust/issues/129432.
See also the alternative https://github.com/rust-lang/rust/pull/131433.

Tested on:
- `x86_64-apple-darwin`, MacBook Pro running Mac OS X 10.12.6
    - With no tooling installed
    - With Xcode 9.2
    - With Xcode 9.2 Commandline Tools
- `aarch64-apple-darwin`, MacBook M2 Pro running macOS 14.7.4
    - With Xcode 13.4.1
    - With Xcode 16.2
    - Inside `nix-shell -p xcbuild` (nixpkgs' `xcrun` shim)
- `aarch64-apple-darwin`, VM running macOS 15.3.1
    - With no tooling installed
    - With Xcode 16.2 Commandline Tools

``@rustbot`` label O-apple
r? compiler
CC ``@BlackHoleFox`` ``@thomcc``
2025-03-27 21:41:48 -04:00
..
src Rollup merge of #139010 - madsmtm:parse-xcrun-better, r=wesleywiser 2025-03-27 21:41:48 -04:00
Cargo.toml bump thorin to drop duped deps 2025-03-24 19:38:16 +03:00
messages.ftl Emit better error messages when invoking xcrun 2025-03-27 04:38:54 +01:00
README.md

README.md

Please read the rustc-dev-guide chapter on Backend Agnostic Codegen.