From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752515AbeEQGUh (ORCPT ); Thu, 17 May 2018 02:20:37 -0400 Received: from conuserg-10.nifty.com ([210.131.2.77]:26308 "EHLO conuserg-10.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752176AbeEQGT7 (ORCPT ); Thu, 17 May 2018 02:19:59 -0400 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-10.nifty.com w4H6HbUM002841 X-Nifty-SrcIP: [153.142.97.92] From: Masahiro Yamada To: linux-kbuild@vger.kernel.org Cc: Linus Torvalds , Sam Ravnborg , Ulf Magnusson , "Luis R . Rodriguez" , linux-kernel@vger.kernel.org, Nicholas Piggin , Kees Cook , Emese Revfy , x86@kernel.org, Masahiro Yamada Subject: [PATCH v4 24/31] kconfig: add CC_IS_GCC and GCC_VERSION Date: Thu, 17 May 2018 15:17:03 +0900 Message-Id: <1526537830-22606-25-git-send-email-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1526537830-22606-1-git-send-email-yamada.masahiro@socionext.com> References: <1526537830-22606-1-git-send-email-yamada.masahiro@socionext.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This will be useful to specify the required compiler version, like this: config FOO bool "Use Foo" depends on GCC_VERSION >= 40800 help This feature requires GCC 4.8 or newer. Signed-off-by: Masahiro Yamada Reviewed-by: Kees Cook --- Changes in v4: None Changes in v3: None Changes in v2: None init/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/init/Kconfig b/init/Kconfig index 66f0463..c6ac856 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -8,6 +8,14 @@ config DEFCONFIG_LIST default ARCH_DEFCONFIG default "arch/$(ARCH)/defconfig" +config CC_IS_GCC + def_bool $(success, $(CC) --version | grep -q gcc) + +config GCC_VERSION + int + default $(shell, $(srctree)/scripts/gcc-version.sh -p $(CC) | sed 's/^0*//') if CC_IS_GCC + default 0 + config CONSTRUCTORS bool depends on !UML -- 2.7.4