From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CD294C43331 for ; Mon, 30 Mar 2020 11:42:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A88B12073B for ; Mon, 30 Mar 2020 11:42:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729816AbgC3LmB (ORCPT ); Mon, 30 Mar 2020 07:42:01 -0400 Received: from foss.arm.com ([217.140.110.172]:51330 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728764AbgC3LmA (ORCPT ); Mon, 30 Mar 2020 07:42:00 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 484FD31B; Mon, 30 Mar 2020 04:42:00 -0700 (PDT) Received: from a075553-lin.blr.arm.com (a075553-lin.blr.arm.com [10.162.17.24]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 5997C3F52E; Mon, 30 Mar 2020 04:41:58 -0700 (PDT) From: Amit Daniel Kachhap To: linux-arm-kernel@lists.infradead.org Cc: Catalin Marinas , Will Deacon , Vincenzo Frascino , linux-kernel@vger.kernel.org, Amit Daniel Kachhap Subject: [PATCH v2 1/2] init/kconfig: Add LD_VERSION Kconfig Date: Mon, 30 Mar 2020 17:11:38 +0530 Message-Id: <1585568499-21585-1-git-send-email-amit.kachhap@arm.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This option can be used in Kconfig files to compare the ld version and enable/disable incompatible config options if required. This option is used in the subsequent patch along with GCC_VERSION to filter out an incompatible feature. Signed-off-by: Amit Daniel Kachhap --- Changes since v1: * None. This patch series is based on Linux arm64 for-next tree [1]. More details of this work can be found in the thread [2]. [1]: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core [2]: http://lists.infradead.org/pipermail/linux-arm-kernel/2020-March/720257.html init/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/init/Kconfig b/init/Kconfig index 452bc18..68ddbcd 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -17,6 +17,10 @@ config GCC_VERSION default $(shell,$(srctree)/scripts/gcc-version.sh $(CC)) if CC_IS_GCC default 0 +config LD_VERSION + int + default $(shell,$(LD) --version | $(srctree)/scripts/ld-version.sh) + config CC_IS_CLANG def_bool $(success,$(CC) --version | head -n 1 | grep -q clang) -- 2.7.4