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: 133330 Delivered-To: patch@linaro.org Received: by 10.46.84.18 with SMTP id i18csp347038ljb; Thu, 12 Apr 2018 22:12:46 -0700 (PDT) X-Google-Smtp-Source: AIpwx4/6sgnlBubtZBxt6FWH6WdaH9BqSGgFQCmwR0I/b6gv39Om4U3nhA9pPKz6sARewLkLZaLO X-Received: by 2002:a17:902:aa46:: with SMTP id c6-v6mr3811615plr.154.1523596366737; Thu, 12 Apr 2018 22:12:46 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1523596366; cv=none; d=google.com; s=arc-20160816; b=hLAx5aIx21v4CpNP1tlfD5wzUGLrcZ0VVLtxyox5vFc3z7uW2ofl2Fw+0jIaikUYyY wANWhwfkccjO98X7iJR9w2VCT6pcrQ3ZKYb6KMx9TH9h3Feta8yhOVQx7NcfpVcKMVzQ 18RGlz3u7RqMDvzfKR7weKCCLnCuW9DHgJnYIq/hegT60cPAYYoyF2mD/ZplCIcS3aE4 LS5ckOLy87u7uvqDXjrBS+0JJ4zuZ5RugAEhxwh/QBujldTY+P4d7jQkZqeiu95ITnrc WzLXEnRVtgm3EkO+iICI7eKOme2NHASoYtdDC//MKjY4HXJkiwVpGvQjahnWxz5VGdfT 5rIA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from:dkim-signature:dkim-filter :arc-authentication-results; bh=WWDrBCy6F8kVf33juHWFSmV9WNxTCZSXI//PoN2+R4Q=; b=s0rF8Su8IusFZai0q5RSqo6oijrtf/M+iXA1uBZaUw4zxaV7pY1C5wNRVd9DT99whJ t1aeq2aXkLCmi/9Ej2m+tKqECy98+/49UHkp3h5np4Q9dmvzKd7AL4KxdNDh8MOCy1lv 1eUAdQtY2WVilLney9NHHjrfs1Obzb92o0dD30R9MOqSbedluVDqDX7ruVEaAS7c1dXe X1nqOGEswPyLgzJTyMeDX5db9HO9O1t9xC3llekmo8apqKJvC5YqqeESA1UwhWtCXB94 0qtfw8hUmBjGEcJALseQ7CCmZxPKg2agCHP1iXedVFHZnT+0cqBO7zZ8RfnSQ5LhmZUc p6jw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@nifty.com header.s=dec2015msa header.b=c+W9tTX9; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id t2si3411527pgb.209.2018.04.12.22.12.46; Thu, 12 Apr 2018 22:12:46 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@nifty.com header.s=dec2015msa header.b=c+W9tTX9; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753680AbeDMFMn (ORCPT + 29 others); Fri, 13 Apr 2018 01:12:43 -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-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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(-) -- 2.7.4 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