Commit c93d7a5e authored Aug 28, 2024 by David Brown Committed by David Brown Sep 06, 2024

rust: Suppress warning about improper C types

Zephyr takes advantage of a gcc/clang extension that allows structs that
have no elements.  Rust is perfectly happy with this (it is quite common
in Rust code), but generates a warning when a struct containing no
elements is passed to C code.

For now, suppress this warning on the generated bindings.  This has the
disadvantage of suppressing it entirely, which might possibly detect
other cases of invalid structs.  However, the bindings are
auto-generated from C structs so should always be valid.

Signed-off-by: David Brown <david.brown@linaro.org>

parent a40ddef8

lib/rust/zephyr-sys/src/lib.rs

+4 −0

Changes for lib/rust/zephyr-sys/src/lib.rs: 4 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		@@ -13,4 +13,8 @@
		#![allow(non_upper_case_globals)]
		#![allow(non_camel_case_types)]

		// Zephyr makes use of zero-sized structs, which Rustc considers invalid. Suppress this warning.
		// Note, however, that this suppresses any warnings in the bindings about improper C types.
		#![allow(improper_ctypes)]

		include!(concat!(env!("OUT_DIR"), "/bindings.rs"));

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