objtool/rust: add one more noreturn Rust function
commitcee6f9a9c8upstream. Starting with Rust 1.85.0 (currently in beta, to be released 2025-02-20), under some kernel configurations with `CONFIG_RUST_DEBUG_ASSERTIONS=y`, one may trigger a new `objtool` warning: rust/kernel.o: warning: objtool: _R...securityNtB2_11SecurityCtx8as_bytes() falls through to next function _R...core3ops4drop4Drop4drop() due to a call to the `noreturn` symbol: core::panicking::assert_failed::<usize, usize> Thus add it to the list so that `objtool` knows it is actually `noreturn`. Do so matching with `strstr` since it is a generic. See commit56d680dd23("objtool/rust: list `noreturn` Rust functions") for more details. Cc: stable@vger.kernel.org # Needed in 6.12.y and 6.13.y only (Rust is pinned in older LTSs). Fixes:56d680dd23("objtool/rust: list `noreturn` Rust functions") Reviewed-by: Gary Guo <gary@garyguo.net> Link: https://lore.kernel.org/r/20250112143951.751139-1-ojeda@kernel.org [ Updated Cc: stable@ to include 6.13.y. - Miguel ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Greg Kroah-Hartman
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@@ -218,6 +218,7 @@ static bool is_rust_noreturn(const struct symbol *func)
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str_ends_with(func->name, "_4core9panicking18panic_bounds_check") ||
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str_ends_with(func->name, "_4core9panicking19assert_failed_inner") ||
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str_ends_with(func->name, "_4core9panicking36panic_misaligned_pointer_dereference") ||
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strstr(func->name, "_4core9panicking13assert_failed") ||
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strstr(func->name, "_4core9panicking11panic_const24panic_const_") ||
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(strstr(func->name, "_4core5slice5index24slice_") &&
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str_ends_with(func->name, "_fail"));
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