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=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 C9057C33CB1 for ; Fri, 17 Jan 2020 11:34:05 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8C6162073A for ; Fri, 17 Jan 2020 11:34:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="YvPlFd2s" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8C6162073A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=rcr/dSSwk7n0IBo05FBC7gkANXizzdN6Wq6Homq6KUg=; b=YvPlFd2soaZRFb VGeG1+DKQe3SUeKfC0OUWRbHXIfLjz90Qo78FTNU8LR+cLf9Kwl3LRyAJr8oUcXGgmy2EKSscwU2d /mOxzBC6Wi/IzkW0N7g3bEjMx0fFIqiHDIvhLz27neCPng3jujleGwESxZXAGL+P74PdFiRRthxZd zKcHV8crUMyiw1/2yl9BCWUJIf7r/N7ApcA2b03zZEq8Atxig3yln7Gu4AWjalqh71i0YT+HKD7S9 uCBGdKOXF1Bw1ZNAqY08dQmnfMzkw81SR8YmKu1FR0SUEIX0ezl0H8O5vHygWdJ1QG24/aL6LvC2c OH5ik9S8v4V43BWKZCIA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1isPt6-0001Ga-R7; Fri, 17 Jan 2020 11:34:04 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1isPsy-0001FI-PT for linux-arm-kernel@lists.infradead.org; Fri, 17 Jan 2020 11:34:02 +0000 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 55CF211D4; Fri, 17 Jan 2020 03:33:55 -0800 (PST) Received: from arrakis.emea.arm.com (arrakis.cambridge.arm.com [10.1.197.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 5B66F3F68E; Fri, 17 Jan 2020 03:33:53 -0800 (PST) Date: Fri, 17 Jan 2020 11:33:51 +0000 From: Catalin Marinas To: Amit Daniel Kachhap Subject: Re: [PATCH v3 14/16] kconfig: Add support for 'as-option' Message-ID: <20200117113351.GF26090@arrakis.emea.arm.com> References: <1576486038-9899-1-git-send-email-amit.kachhap@arm.com> <1576486038-9899-15-git-send-email-amit.kachhap@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1576486038-9899-15-git-send-email-amit.kachhap@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200117_033356_871106_773EE8AC X-CRM114-Status: UNSURE ( 9.83 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Kees Cook , Suzuki K Poulose , Ard Biesheuvel , Richard Henderson , Kristina Martsenko , linux-kbuild@vger.kernel.org, Masahiro Yamada , James Morse , Ramana Radhakrishnan , Mark Brown , Vincenzo Frascino , Will Deacon , Dave Martin , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Dec 16, 2019 at 02:17:16PM +0530, Amit Daniel Kachhap wrote: > diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include > index d4adfbe..cc465dd 100644 > --- a/scripts/Kconfig.include > +++ b/scripts/Kconfig.include > @@ -31,6 +31,10 @@ cc-option = $(success,$(CC) -Werror $(CLANG_FLAGS) $(1) -E -x c /dev/null -o /de > # Return y if the linker supports , n otherwise > ld-option = $(success,$(LD) -v $(1)) > > +# $(as-option,) > +# Return y if the assembler supports , n otherwise > +as-option = $(success, $(CC) $(CLANG_FLAGS) $(1) -E -x assembler /dev/null -o /dev/null) I had different experiments with this for MTE and noticed that clang does not honour the -Wa, option (which you use in a subsequent patch). So not sure how useful as-option is. -- Catalin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel