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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 6F66CC6FD18 for ; Fri, 31 Mar 2023 13:34:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=CvLzOqGmBzCOmW52+sjGWB9FiUur2vJJXtuKUfhi4z4=; b=jdIuR6OQ7As25+ qKzItJMN/NCvjMV58ltbd+hoe870GHAmZLfBXGTG+27vkkG/brkCMSL5GJA20IGxpWxO0guUVm0zs Ejbyu6ftuoJd/c81x7FrFlysIQj+CsEIMFUj4DplBFoLn3/mm8jvbMYmTmH2BqTyOyjQVJLrMajk6 Fuod6tFbertxvPTAwr+vtm12eIP/G70mm5BOlJ+FXnHarHWnfvJkSWtsdLA3W2lIJIX3sDrgqGbb9 0OPTm9MYyQ9UPM3iwafbyB2mLn4CIi+FBTdmA+xQmotXPzC+BRQDNXvkQMb6Ss/VyMlSS30tN1AkH gZ01Ai14OXAQAZnGV1lw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1piEtN-007XkB-1R; Fri, 31 Mar 2023 13:34:12 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1piEtG-007Xie-1y; Fri, 31 Mar 2023 13:34:04 +0000 Received: from ip4d1634d3.dynamic.kabel-deutschland.de ([77.22.52.211] helo=diego.localnet) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1piEtE-0003tp-DL; Fri, 31 Mar 2023 15:34:00 +0200 From: Heiko =?ISO-8859-1?Q?St=FCbner?= To: linux-riscv@lists.infradead.org, palmer@dabbelt.com, anup@brainfault.org, atishp@atishpatra.org, kvm-riscv@lists.infradead.org, kvm@vger.kernel.org Cc: vineetg@rivosinc.com, greentime.hu@sifive.com, guoren@linux.alibaba.com, Andy Chiu , Paul Walmsley , Albert Ou , Nathan Chancellor , Nick Desaulniers , Tom Rix , Andy Chiu Subject: Re: [PATCH -next v17 19/20] riscv: detect assembler support for .option arch Date: Fri, 31 Mar 2023 15:33:59 +0200 Message-ID: <1936189.yKVeVyVuyW@diego> In-Reply-To: <20230327164941.20491-20-andy.chiu@sifive.com> References: <20230327164941.20491-1-andy.chiu@sifive.com> <20230327164941.20491-20-andy.chiu@sifive.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230331_063402_662036_E1918930 X-CRM114-Status: GOOD ( 10.34 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Am Montag, 27. M=E4rz 2023, 18:49:39 CEST schrieb Andy Chiu: > Some extensions use .option arch directive to selectively enable certain > extensions in parts of its assembly code. For example, Zbb uses it to > inform assmebler to emit bit manipulation instructions. However, > supporting of this directive only exist on GNU assembler and has not > landed on clang at the moment, making TOOLCHAIN_HAS_ZBB depend on > AS_IS_GNU. > = > While it is still under review at https://reviews.llvm.org/D123515, the > upcoming Vector patch also requires this feature in assembler. Thus, > provide Kconfig AS_HAS_OPTION_ARCH to detect such feature. Then > TOOLCHAIN_HAS_XXX will be turned on automatically when the feature land. > = > Suggested-by: Nathan Chancellor > Signed-off-by: Andy Chiu > Reviewed-by: Conor Dooley > Reviewed-by: Nathan Chancellor Reviewed-by: Heiko Stuebner Tested-by: Heiko Stuebner _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv