Matthias Krüger 57be141f8a Rollup merge of #128784 - tdittr:check-abi-on-fn-ptr, r=compiler-errors ... Check ABI target compatibility for function pointers Tracking issue: https://github.com/rust-lang/rust/issues/130260 Related tracking issue: #87678 Compatibility of an ABI for a target was previously only performed on function definitions and `extern` blocks. This PR adds it also to function pointers to be consistent. This might have broken some of the `tests/ui/` depending on the platform, so a try run seems like a good idea. Also this might break existing code, because we now emit extra errors. Does this require a crater run? # Example ```rust // build with: --target=x86_64-unknown-linux-gnu // These raise E0570 extern "thiscall" fn foo() {} extern "thiscall" { fn bar() } // This did not raise any error fn baz(f: extern "thiscall" fn()) { f() } ``` # Open Questions * [x] Should this report a future incompatibility warning like #87678 ? * [ ] Is this the best place to perform the check?		2024-10-12 23:00:55 +02:00
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src	Rollup merge of #128784 - tdittr:check-abi-on-fn-ptr, r=compiler-errors	2024-10-12 23:00:55 +02:00
Cargo.toml