Re: [PATCH 01/11] Compiler Attributes: Add __require_explicit_initialization macro
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From: Miguel Ojeda <hidden>
Date: 2026-10-14 11:29:20
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On Wed, Oct 14, 2026 at 12:40 AM Ian Rogers [off-list ref] wrote:
quoted hunk ↗ jump to hunk
+/* + * Optional: not supported by gcc + * + * clang: https://clang.llvm.org/docs/AttributeReference.html#require-explicit-initialization + */ +#if __has_attribute(__require_explicit_initialization__) +# define __require_explicit_initialization __attribute__((__require_explicit_initialization__)) +#else +# define __require_explicit_initialization +#endif
The LPC slides mention Clang 14+, but from a quick test in Compiler
Explorer and a `git log --grep` on the LLVM repository to confirm, it
seems the attribute was introduced in Clang 20+, no?
If that is correct, then it is not available in all LLVM versions we
support (LLVM 17+), so we should add:
* Optional: only supported since clang >= 20.0
With that:
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Thanks!
Cheers,
Miguel