From patchwork Wed Dec 11 18:40:07 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Catalin Marinas X-Patchwork-Id: 11286027 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 14016109A for ; Wed, 11 Dec 2019 18:49:19 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id DC46C206A5 for ; Wed, 11 Dec 2019 18:49:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC46C206A5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id C3D8A6B3376; Wed, 11 Dec 2019 13:48:53 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id B7E896B3378; Wed, 11 Dec 2019 13:48:53 -0500 (EST) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0EF486B3377; Wed, 11 Dec 2019 13:48:52 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0161.hostedemail.com [216.40.44.161]) by kanga.kvack.org (Postfix) with ESMTP id 84A766B336D for ; Wed, 11 Dec 2019 13:48:52 -0500 (EST) Received: from smtpin02.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with SMTP id 46C4482499A8 for ; Wed, 11 Dec 2019 18:48:52 +0000 (UTC) X-FDA: 76253747304.02.waves05_132e7a2d27462 X-Spam-Summary: 2,0,0,920eb07fbbeb6fdf,d41d8cd98f00b204,catalin.marinas@arm.com,:linux-arm-kernel@lists.infradead.org:will@kernel.org:maz@kernel.org:vincenzo.frascino@arm.com:szabolcs.nagy@arm.com:richard.earnshaw@arm.com:kevin.brodsky@arm.com:andreyknvl@google.com::linux-arch@vger.kernel.org:yamada.masahiro@socionext.com:linux-kbuild@vger.kernel.org:vladimir.murzin@arm.com,RULES_HIT:41:355:379:541:800:960:973:982:988:989:1260:1261:1311:1314:1345:1359:1437:1515:1534:1541:1711:1730:1747:1777:1792:2393:2559:2562:2899:3138:3139:3140:3141:3142:3352:3865:3867:3868:3870:3871:3872:3874:4250:4321:5007:6261:6742:7904:8634:8660:10004:11026:11473:11658:11914:12043:12297:12555:13069:13148:13230:13311:13357:13894:14181:14384:14394:14721:21080:21221:21230:21451:21627:21990:30012:30054:30070,0,RBL:error,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:31,LUA_SUMMARY:none X-HE-Tag: waves05_132e7a2d27462 X-Filterd-Recvd-Size: 2930 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf50.hostedemail.com (Postfix) with ESMTP for ; Wed, 11 Dec 2019 18:48:51 +0000 (UTC) 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 091551045; Wed, 11 Dec 2019 10:40:41 -0800 (PST) Received: from arrakis.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 4461F3F6CF; Wed, 11 Dec 2019 10:40:39 -0800 (PST) From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org Cc: Will Deacon , Marc Zyngier , Vincenzo Frascino , Szabolcs Nagy , Richard Earnshaw , Kevin Brodsky , Andrey Konovalov , linux-mm@kvack.org, linux-arch@vger.kernel.org, Masahiro Yamada , linux-kbuild@vger.kernel.org, Vladimir Murzin Subject: [PATCH 02/22] kbuild: Add support for 'as-instr' to be used in Kconfig files Date: Wed, 11 Dec 2019 18:40:07 +0000 Message-Id: <20191211184027.20130-3-catalin.marinas@arm.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191211184027.20130-1-catalin.marinas@arm.com> References: <20191211184027.20130-1-catalin.marinas@arm.com> MIME-Version: 1.0 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Similar to 'cc-option' or 'ld-option', it is occasionally necessary to check whether the assembler supports certain ISA extensions. In the arm64 code we currently do this in Makefile with an additional define: lseinstr := $(call as-instr,.arch_extension lse,-DCONFIG_AS_LSE=1) Add the 'as-instr' option so that it can be used in Kconfig directly: def_bool $(as-instr,.arch_extension lse) Cc: Masahiro Yamada Cc: linux-kbuild@vger.kernel.org Reviewed-by: Vladimir Murzin Signed-off-by: Catalin Marinas Acked-by: Masahiro Yamada --- scripts/Kconfig.include | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include index d4adfbe42690..9d07e59cbdf7 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-instr,) +# Return y if the assembler supports , n otherwise +as-instr = $(success,printf "%b\n" "$(1)" | $(CC) $(CLANG_FLAGS) -c -x assembler -o /dev/null -) + # check if $(CC) and $(LD) exist $(error-if,$(failure,command -v $(CC)),compiler '$(CC)' not found) $(error-if,$(failure,command -v $(LD)),linker '$(LD)' not found)