| commit | 442f11065065651014c15aa8d430e798d9acbaa5 | [log] [tgz] |
|---|---|---|
| author | bors <bors@rust-lang.org> | Mon Jun 09 05:21:49 2025 +0000 |
| committer | bors <bors@rust-lang.org> | Mon Jun 09 05:21:49 2025 +0000 |
| tree | a3d2f7be34e44a1945f2b9d3de4a6e500896224e | |
| parent | 05bc59e251315331bf61762d2aa066162ab9187d [diff] | |
| parent | f7014ef76cab6682ea8c4f1756672914eabbcca1 [diff] |
Auto merge of #141435 - RalfJung:unsupported_calling_conventions, r=workingjubilee Add (back) `unsupported_calling_conventions` lint to reject more invalid calling conventions This adds back the `unsupported_calling_conventions` lint that was removed in https://github.com/rust-lang/rust/pull/129935, in order to start the process of dealing with https://github.com/rust-lang/rust/issues/137018. Specifically, we are going for the plan laid out [here](https://github.com/rust-lang/rust/issues/137018#issuecomment-2672118326): - thiscall, stdcall, fastcall, cdecl should only be accepted on x86-32 - vectorcall should only be accepted on x86-32 and x86-64 The difference to the status quo is that: - We stop accepting stdcall, fastcall on targets that are windows && non-x86-32 (we already don't accept these on targets that are non-windows && non-x86-32) - We stop accepting cdecl on targets that are non-x86-32 - (There is no difference for thiscall, this was already a hard error on non-x86-32) - We stop accepting vectorcall on targets that are windows && non-x86-* Vectorcall is an unstable ABI so we can just make this a hard error immediately. The others are stable, so we emit the `unsupported_calling_conventions` forward-compat lint. I set up the lint to show up in dependencies via cargo's future-compat report immediately, but we could also make it show up just for the local crate first if that is preferred. try-job: i686-msvc-1 try-job: x86_64-msvc-1 try-job: test-various
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