From patchwork Fri Aug 5 15:42:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miguel Ojeda X-Patchwork-Id: 12937439 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6FAD3C00140 for ; Fri, 5 Aug 2022 15:46:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241268AbiHEPqP (ORCPT ); Fri, 5 Aug 2022 11:46:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47492 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241304AbiHEPpn (ORCPT ); Fri, 5 Aug 2022 11:45:43 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 697A46AA23; Fri, 5 Aug 2022 08:44:27 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 06C2A61640; Fri, 5 Aug 2022 15:44:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7B529C433D6; Fri, 5 Aug 2022 15:44:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1659714266; bh=5Jb5dRbpZh0rUGsjuxSpsmEeXQf/l3SF0NEHYaTvdmo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XDO+Dz1RO+EM400WnQiYu+aJHutW9+Yxo4ZrNySoyZNvFgpEUSqr/HotwdH2MPK0W 5AQl1Mh/l0NCW0bbKIHFaMff+K6dKNZ7gCwawZcbp86fZgOoMkmLYe6Ue4ywXRWIhI eYC2FAg6VWV0JZ9BsutOh6pJdwPPGV0aNVAIdxoyxBCz7ocnQ5ChvYFIigTNXIdbLr Fl8LFCFVeNhaQr36EZdPEgq/tZ1q4dQOvIfnd+aVSGfMhWe5j1EviSUPcRFJMPAtIk WO1s042of/fjcHyuZUWoNcm4olhv8gkF5F8oWmgx92ltIasj+3zG4BGPUAbEtkog3r ZKzM47n495h7Q== 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 , Alex Gaynor , Wedson Almeida Filho , Boqun Feng , Gary Guo , =?utf-8?q?B?= =?utf-8?q?j=C3=B6rn_Roy_Baron?= Subject: [PATCH v9 21/27] scripts: add `is_rust_module.sh` Date: Fri, 5 Aug 2022 17:42:06 +0200 Message-Id: <20220805154231.31257-22-ojeda@kernel.org> In-Reply-To: <20220805154231.31257-1-ojeda@kernel.org> References: <20220805154231.31257-1-ojeda@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org 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. 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 Reviewed-by: Kees Cook --- 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:]]*$'