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 476F380C for ; Tue, 27 Sep 2022 13:17:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0B7CC433D7; Tue, 27 Sep 2022 13:17:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1664284649; bh=FVapCLCMBFHoRGadwccT/R6zj9iqxDxY8mFOufu6k/8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=prAHLc750vnY4t9ZCgdqGMIYpFyZoa6GPpixK7E3xUYjkRjrASv6dEqpdvilkRk3G wzY/QPzGQsaMWYftQ8vMJi5kXYpaWk2vrbZ4PBm7YBtEjs1krVTUQiRe7oqkOVyW92 HpmgEDKYS4I6KfLr4MEn3atGzQyDVgNF40V2UEpnxRuZPOcLJcH9J5k17VOOUELiw7 cYZZUCt7y7Pj8Tp2FWRmqiJ2DARJ0dr40TQi4NJnP0245O+KGnobon0IV0xrCVtxOg 4gdVHGDjTDZfbzFnt2HPHMzwjOD/32NX1cvI2tLztdccThdxnWrRTi45wduTsCUMAm Lpimkv84GPNIw== From: Miguel Ojeda To: Linus Torvalds , Greg Kroah-Hartman Cc: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, patches@lists.linux.dev, Jarkko Sakkinen , Miguel Ojeda , Daniel Xu , Kees Cook , Alex Gaynor , Wedson Almeida Filho , Boqun Feng , Gary Guo , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= Subject: [PATCH v10 21/27] scripts: add `is_rust_module.sh` Date: Tue, 27 Sep 2022 15:14:52 +0200 Message-Id: <20220927131518.30000-22-ojeda@kernel.org> In-Reply-To: <20220927131518.30000-1-ojeda@kernel.org> References: <20220927131518.30000-1-ojeda@kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Daniel Xu This script is used to detect whether a kernel module is written in Rust. It will later be used to disable BTF generation on Rust modules as BTF does not yet support Rust. Reviewed-by: Kees Cook Co-developed-by: Alex Gaynor Signed-off-by: Alex Gaynor Co-developed-by: Wedson Almeida Filho Signed-off-by: Wedson Almeida Filho Signed-off-by: Daniel Xu Co-developed-by: Miguel Ojeda Signed-off-by: Miguel Ojeda --- scripts/is_rust_module.sh | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100755 scripts/is_rust_module.sh diff --git a/scripts/is_rust_module.sh b/scripts/is_rust_module.sh new file mode 100755 index 000000000000..28b3831a7593 --- /dev/null +++ b/scripts/is_rust_module.sh @@ -0,0 +1,16 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# +# is_rust_module.sh module.ko +# +# Returns `0` if `module.ko` is a Rust module, `1` otherwise. + +set -e + +# Using the `16_` prefix ensures other symbols with the same substring +# are not picked up (even if it would be unlikely). The last part is +# used just in case LLVM decides to use the `.` suffix. +# +# In the future, checking for the `.comment` section may be another +# option, see https://github.com/rust-lang/rust/pull/97550. +${NM} "$*" | grep -qE '^[0-9a-fA-F]+ r _R[^[:space:]]+16___IS_RUST_MODULE[^[:space:]]*$' -- 2.37.3