From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D78381EFF96; Sat, 12 Jul 2025 16:01:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752336086; cv=none; b=leceypFWIrSfKKwuRuPXlxK8m5SOBG0fu3wdiTG235nu6+2ZxWsZS/lVoFQZ0o61BDHqwVfLlsJstj22LbHT2T0+RaNX7y/Xl3jK8Hav+imM4oge4FPYPxOMdSfbkYhtM7equDIYGAXsIRlL/meLKalyvnzSqMw4WRoWlD5GJvk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752336086; c=relaxed/simple; bh=5MG0jqUEHHH7R1NYtYRbqexXKZsa01vkH9O2WRtO+xI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=AsWCpakgZ0D3D4xmmGWigMtVppD4y6wS6sI5zTZo8ydlls46M/2/ugPDQ2Qv92wrE3zNo8byvwidWZkR+qPW/JlPL8WuE9Xj66V3IYCWlWNHs8cjIjW5nLh0mcPzMbuHdNSFtc0yvzqgiAiVXtW6ucU52iqx/STZCoC1hj7Wcwo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=itF2LfcG; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="itF2LfcG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0EE93C4CEF0; Sat, 12 Jul 2025 16:01:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752336085; bh=5MG0jqUEHHH7R1NYtYRbqexXKZsa01vkH9O2WRtO+xI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=itF2LfcGg31HRC88aU/zIvE7XUv+nDu4nN3SEycyt+CEeTz2WShaCIVahMgt475nb Xc7RDZRtEbyTBKy3X3LY4PipPZ5r4oZxGezjfla+gTS35Wf3a/wSzS3S1yu2bVz07E IB6kDrJsPjfjpijxDkdfFBrU4r6Dld95P+UuLpdD+vnHNkE7p36Z7SFXdSEqd2hiq+ ZPOCYWMU5HbBtmcBqDgbg3SzCIZFC2ChF8phmouSAcWBgpGP92sdnhM2mHmhRIZYcW c07W6I5kjhyJKo4f+SFCXCyBT5rAUTIhDTe7azKMacQAeikkjVUUUVYBVnuAuLhBno DI5IuEGH47xtQ== From: Miguel Ojeda To: Miguel Ojeda , Alex Gaynor , Masahiro Yamada , Josh Poimboeuf , Peter Zijlstra Cc: Boqun Feng , Gary Guo , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , rust-for-linux@vger.kernel.org, Nathan Chancellor , Nicolas Schier , linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, patches@lists.linux.dev, stable@vger.kernel.org Subject: [PATCH 1/2] objtool/rust: add one more `noreturn` Rust function for Rust 1.89.0 Date: Sat, 12 Jul 2025 18:01:02 +0200 Message-ID: <20250712160103.1244945-2-ojeda@kernel.org> In-Reply-To: <20250712160103.1244945-1-ojeda@kernel.org> References: <20250712160103.1244945-1-ojeda@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Starting with Rust 1.89.0 (expected 2025-08-07), under `CONFIG_RUST_DEBUG_ASSERTIONS=y`, `objtool` may report: rust/kernel.o: warning: objtool: _R..._6kernel4pageNtB5_4Page8read_raw() falls through to next function _R..._6kernel4pageNtB5_4Page9write_raw() (and many others) due to calls to the `noreturn` symbol: core::panicking::panic_nounwind_fmt Thus add the mangled one to the list so that `objtool` knows it is actually `noreturn`. See commit 56d680dd23c3 ("objtool/rust: list `noreturn` Rust functions") for more details. Cc: stable@vger.kernel.org # Needed in 6.12.y and later (Rust is pinned in older LTSs). Cc: Josh Poimboeuf Cc: Peter Zijlstra Signed-off-by: Miguel Ojeda --- tools/objtool/check.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/objtool/check.c b/tools/objtool/check.c index f23bdda737aa..3257eefc41ed 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -224,6 +224,7 @@ static bool is_rust_noreturn(const struct symbol *func) str_ends_with(func->name, "_4core9panicking14panic_explicit") || str_ends_with(func->name, "_4core9panicking14panic_nounwind") || str_ends_with(func->name, "_4core9panicking18panic_bounds_check") || + str_ends_with(func->name, "_4core9panicking18panic_nounwind_fmt") || str_ends_with(func->name, "_4core9panicking19assert_failed_inner") || str_ends_with(func->name, "_4core9panicking30panic_null_pointer_dereference") || str_ends_with(func->name, "_4core9panicking36panic_misaligned_pointer_dereference") || -- 2.50.1