From patchwork Fri Apr 13 05:06:32 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 10339477 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 31CF760329 for ; Fri, 13 Apr 2018 05:13:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 662E8286AA for ; Fri, 13 Apr 2018 05:13:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5A8AE286B2; Fri, 13 Apr 2018 05:13:46 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E752B286AA for ; Fri, 13 Apr 2018 05:13:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753064AbeDMFMl (ORCPT ); Fri, 13 Apr 2018 01:12:41 -0400 Received: from conuserg-07.nifty.com ([210.131.2.74]:54529 "EHLO conuserg-07.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751076AbeDMFIQ (ORCPT ); Fri, 13 Apr 2018 01:08:16 -0400 Received: from pug.e01.socionext.com (p14092-ipngnfx01kyoto.kyoto.ocn.ne.jp [153.142.97.92]) (authenticated) by conuserg-07.nifty.com with ESMTP id w3D56lgH029209; Fri, 13 Apr 2018 14:07:08 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-07.nifty.com w3D56lgH029209 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1523596029; bh=WWDrBCy6F8kVf33juHWFSmV9WNxTCZSXI//PoN2+R4Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=c+W9tTX9BvzbhJ+IYBOhIesGy2bz/kcZ4QbcmfBjcGj4JFHRoy0wDFbXey6pY/2is xCKA++/0h8z6TBPubQBp5CPe/fqqzIm4+dnu2ZqtT4tEiU4Pfc9C6jP4DggDIxYuIX w4D4lz8oHYIW27qLEGVC4rSPaKeXhAv1zEOP/Zpf4tGQv4k5hacfSFJ5F0JUXsGMfy 7NmArRJfUzCg8nTYJrg86VGs/E6RfP5KsN9m1G90xzPTsHMiPT9s6tTpnLW/zwrI3N H+cfowMot3pU81F38r/Ia8X21aTKOs5K8WHcaxWsKlRrVOD8VC67CyPJSNs5p6WoKs y2x+AGh0LVH8w== X-Nifty-SrcIP: [153.142.97.92] From: Masahiro Yamada To: linux-kbuild@vger.kernel.org Cc: Linus Torvalds , Sam Ravnborg , Ulf Magnusson , Nicholas Piggin , Kees Cook , Emese Revfy , x86@kernel.org, Masahiro Yamada , linux-kernel@vger.kernel.org Subject: [PATCH 23/30] kconfig: add CC_IS_CLANG and CLANG_VERSION Date: Fri, 13 Apr 2018 14:06:32 +0900 Message-Id: <1523595999-27433-24-git-send-email-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1523595999-27433-1-git-send-email-yamada.masahiro@socionext.com> References: <1523595999-27433-1-git-send-email-yamada.masahiro@socionext.com> Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This will be useful to describe the clang version dependency. Signed-off-by: Masahiro Yamada Reviewed-by: Kees Cook --- Changes in v3: None Changes in v2: None init/Kconfig | 7 +++++++ scripts/clang-version.sh | 18 ++++-------------- 2 files changed, 11 insertions(+), 14 deletions(-) diff --git a/init/Kconfig b/init/Kconfig index 145a534..c8f4ba3 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -16,6 +16,13 @@ config GCC_VERSION default $(shell $(srctree)/scripts/gcc-version.sh -p $(CC) | sed 's/^0*//') if CC_IS_GCC default 0 +config CC_IS_CLANG + def_bool $(success $(CC) --version | grep -q clang) + +config CLANG_VERSION + int + default $(shell $(srctree)/scripts/clang-version.sh $(CC)) + config CONSTRUCTORS bool depends on !UML diff --git a/scripts/clang-version.sh b/scripts/clang-version.sh index 9780efa..dbf0a31 100755 --- a/scripts/clang-version.sh +++ b/scripts/clang-version.sh @@ -10,24 +10,14 @@ # clang-5.0.1 etc. # -if [ "$1" = "-p" ] ; then - with_patchlevel=1; - shift; -fi - compiler="$*" -if [ ${#compiler} -eq 0 ]; then - echo "Error: No compiler specified." - printf "Usage:\n\t$0 \n" +if !( $compiler --version | grep -q clang) ; then + echo 0 exit 1 fi MAJOR=$(echo __clang_major__ | $compiler -E -x c - | tail -n 1) MINOR=$(echo __clang_minor__ | $compiler -E -x c - | tail -n 1) -if [ "x$with_patchlevel" != "x" ] ; then - PATCHLEVEL=$(echo __clang_patchlevel__ | $compiler -E -x c - | tail -n 1) - printf "%02d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL -else - printf "%02d%02d\\n" $MAJOR $MINOR -fi +PATCHLEVEL=$(echo __clang_patchlevel__ | $compiler -E -x c - | tail -n 1) +printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL