diff --git a/compiler/rustc_metadata/messages.ftl b/compiler/rustc_metadata/messages.ftl index bccffe392437..3bef5ca114b8 100644 --- a/compiler/rustc_metadata/messages.ftl +++ b/compiler/rustc_metadata/messages.ftl @@ -272,6 +272,9 @@ metadata_raw_dylib_no_nul = metadata_raw_dylib_only_windows = link kind `raw-dylib` is only supported on Windows targets +metadata_raw_dylib_unsupported_abi = + ABI not supported by `#[link(kind = "raw-dylib")]` on this architecture + metadata_renaming_no_link = renaming of the library `{$lib_name}` was specified, however this crate contains no `#[link(...)]` attributes referencing this library @@ -319,12 +322,6 @@ metadata_unknown_link_modifier = metadata_unknown_target_modifier_unsafe_allowed = unknown target modifier `{$flag_name}`, requested by `-Cunsafe-allow-abi-mismatch={$flag_name}` -metadata_unsupported_abi = - ABI not supported by `#[link(kind = "raw-dylib")]` on this architecture - -metadata_unsupported_abi_i686 = - ABI not supported by `#[link(kind = "raw-dylib")]` on i686 - metadata_wasm_c_abi = older versions of the `wasm-bindgen` crate are incompatible with current versions of Rust; please update to `wasm-bindgen` v0.2.88 diff --git a/compiler/rustc_metadata/src/errors.rs b/compiler/rustc_metadata/src/errors.rs index 16f59793e632..71da42901741 100644 --- a/compiler/rustc_metadata/src/errors.rs +++ b/compiler/rustc_metadata/src/errors.rs @@ -300,15 +300,8 @@ pub struct NoLinkModOverride { } #[derive(Diagnostic)] -#[diag(metadata_unsupported_abi_i686)] -pub struct UnsupportedAbiI686 { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(metadata_unsupported_abi)] -pub struct UnsupportedAbi { +#[diag(metadata_raw_dylib_unsupported_abi)] +pub struct RawDylibUnsupportedAbi { #[primary_span] pub span: Span, } diff --git a/compiler/rustc_metadata/src/native_libs.rs b/compiler/rustc_metadata/src/native_libs.rs index cee9cff07750..5cdeb8935f70 100644 --- a/compiler/rustc_metadata/src/native_libs.rs +++ b/compiler/rustc_metadata/src/native_libs.rs @@ -652,7 +652,13 @@ impl<'tcx> Collector<'tcx> { ) -> DllImport { let span = self.tcx.def_span(item); - // this logic is similar to `Target::adjust_abi` (in rustc_target/src/spec/mod.rs) but errors on unsupported inputs + // This `extern` block should have been checked for general ABI support before, but let's + // double-check that. + assert!(self.tcx.sess.target.is_abi_supported(abi)); + + // This logic is similar to `AbiMap::canonize_abi` (in rustc_target/src/spec/abi_map.rs) but + // we need more detail than those adjustments, and we can't support all ABIs that are + // generally supported. let calling_convention = if self.tcx.sess.target.arch == "x86" { match abi { ExternAbi::C { .. } | ExternAbi::Cdecl { .. } => DllCallingConvention::C, @@ -679,7 +685,7 @@ impl<'tcx> Collector<'tcx> { DllCallingConvention::Vectorcall(self.i686_arg_list_size(item)) } _ => { - self.tcx.dcx().emit_fatal(errors::UnsupportedAbiI686 { span }); + self.tcx.dcx().emit_fatal(errors::RawDylibUnsupportedAbi { span }); } } } else { @@ -688,7 +694,7 @@ impl<'tcx> Collector<'tcx> { DllCallingConvention::C } _ => { - self.tcx.dcx().emit_fatal(errors::UnsupportedAbi { span }); + self.tcx.dcx().emit_fatal(errors::RawDylibUnsupportedAbi { span }); } } }; diff --git a/tests/ui/abi/unsupported.rs b/tests/ui/abi/unsupported.rs index 01a9ded257e3..b7f718993ef1 100644 --- a/tests/ui/abi/unsupported.rs +++ b/tests/ui/abi/unsupported.rs @@ -284,3 +284,9 @@ fn cmse_entry_ptr(f: extern "C-cmse-nonsecure-entry" fn()) { } extern "C-cmse-nonsecure-entry" {} //~^ ERROR is not a supported ABI + +#[cfg(windows)] +#[link(name = "foo", kind = "raw-dylib")] +extern "cdecl" {} +//[x64_win]~^ WARN use of calling convention not supported on this target +//[x64_win]~^^ WARN this was previously accepted diff --git a/tests/ui/abi/unsupported.x64_win.stderr b/tests/ui/abi/unsupported.x64_win.stderr index 3e6f8c268fd3..4e61a6ab2057 100644 --- a/tests/ui/abi/unsupported.x64_win.stderr +++ b/tests/ui/abi/unsupported.x64_win.stderr @@ -150,6 +150,15 @@ error[E0570]: `"C-cmse-nonsecure-entry"` is not a supported ABI for the current LL | extern "C-cmse-nonsecure-entry" {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +warning: use of calling convention not supported on this target + --> $DIR/unsupported.rs:290:1 + | +LL | extern "cdecl" {} + | ^^^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #137018 + error[E0570]: `"ptx-kernel"` is not a supported ABI for the current target --> $DIR/unsupported.rs:36:1 | @@ -216,7 +225,7 @@ error[E0570]: `"C-cmse-nonsecure-entry"` is not a supported ABI for the current LL | extern "C-cmse-nonsecure-entry" fn cmse_entry() {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: aborting due to 15 previous errors; 14 warnings emitted +error: aborting due to 15 previous errors; 15 warnings emitted For more information about this error, try `rustc --explain E0570`. Future incompatibility report: Future breakage diagnostic: @@ -351,6 +360,17 @@ LL | fn cmse_entry_ptr(f: extern "C-cmse-nonsecure-entry" fn()) { = note: for more information, see issue #130260 = note: `#[warn(unsupported_fn_ptr_calling_conventions)]` on by default +Future breakage diagnostic: +warning: use of calling convention not supported on this target + --> $DIR/unsupported.rs:290:1 + | +LL | extern "cdecl" {} + | ^^^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #137018 + = note: `#[warn(unsupported_calling_conventions)]` on by default + Future breakage diagnostic: warning: use of calling convention not supported on this target --> $DIR/unsupported.rs:176:1