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[2604:1380:45e3:2400::1]) by mx.google.com with ESMTPS id w23-20020a634757000000b005d8c1b5a3bdsi4541239pgk.216.2024.03.16.08.00.08 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 16 Mar 2024 08:00:08 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-105207-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) client-ip=2604:1380:45e3:2400::1; Authentication-Results: mx.google.com; dkim=pass header.i=@protonmail.com header.s=protonmail3 header.b=PdW0ak0K; arc=pass (i=1 spf=pass spfdomain=protonmail.com dkim=pass dkdomain=protonmail.com dmarc=pass fromdomain=protonmail.com); spf=pass (google.com: domain of linux-kernel+bounces-105207-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-105207-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=protonmail.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 7256F282290 for ; Sat, 16 Mar 2024 15:00:08 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id A999D1B974; Sat, 16 Mar 2024 15:00:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=protonmail.com header.i=@protonmail.com header.b="PdW0ak0K" Received: from mail-4325.protonmail.ch (mail-4325.protonmail.ch [185.70.43.25]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0850D1B815; Sat, 16 Mar 2024 14:59:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.70.43.25 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710601201; cv=none; b=uppS9f5x2cakXdh5f/gqLKMAVjQ67oBvqm9DnVVxHhUeQl1liiPKbUE2s620ukgnZAz6b/QnzLXC0G5/zM/3619Xgtbz+QfFYBe2zEAavq0/Z+/ukTAYjqwvnOvzXHoCtJ4DMYUy10dW17vuH79H2HwTlyVsqBlMrbgy4T1+9YY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710601201; c=relaxed/simple; bh=6ThZgc5bF473g6yEtflfN91+NcQ9yyOlhjLf9QzysLI=; h=Date:To:From:Cc:Subject:Message-ID:MIME-Version:Content-Type; b=bsN3J8eOWdGVdjwX7gk4sbcO9CHoD2Q9m3R/AGj/hStZEB2tDNDG1ok/ddWdB5/FF1B70T0Ap/dyNSlOBFxrZ5mxyvepzwFVSPmzSR8Xfl21gEOtblCkqbfpnStxgsh1uKwMHJu80k6bMNPImtOV1rCt68OgxdIWv3vaGUxDZtI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=protonmail.com; spf=pass smtp.mailfrom=protonmail.com; dkim=pass (2048-bit key) header.d=protonmail.com header.i=@protonmail.com header.b=PdW0ak0K; arc=none smtp.client-ip=185.70.43.25 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=protonmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=protonmail.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1710601192; x=1710860392; bh=SriqUYtoFiKymMAfUU6MXviFeq8Af+j9dgH8WNG12F8=; h=Date:To:From:Cc:Subject:Message-ID:Feedback-ID:From:To:Cc:Date: Subject:Reply-To:Feedback-ID:Message-ID:BIMI-Selector; b=PdW0ak0KUwhpUR7dTEOlI7rLBCYqCc1WerPJICt5BqXzbSTalwiJ//Qw3gKTsaVxd tKwjODoK4G2VVrVzuG6xy9z2DXPFCDEvMQbVXfD/DNkNsUCIrxGoUf9uvNCSukJPUw pJNW4fk0rX+NEtlCq2N1FSbQaXlwgMcR6vHU5g9xUHnBtoeMctcFNyTDxa9YX1vyIX lUP38jiZUU/bqNwtP1jj5XOVu9t43iawropcPIB24KZMNg9ci9RVFbA4R+qHDAQmLJ kRp9YWL90XnBr7P/VRrtQHPCf7s/KZwsjKzI+fzS40jIZGlBVncdeClpGhOpoHLFWo 0AuUN7Fx4q4pg== Date: Sat, 16 Mar 2024 14:59:42 +0000 To: "sparclinux@vger.kernel.org" , "linux-kernel@vger.kernel.org" From: Koakuma Cc: "davem@davemloft.net" , "ndesaulniers@google.com" , "arnd@arndb.de" Subject: [sparc] Use of -fcall-used-* flags in Makefile? Message-ID: Feedback-ID: 6608610:user:proton Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hello, first time poster so apologies if I posted to the wrong list. Anyone knows why the SPARC makefiles (arch/sparc/Makefile and arch/sparc/vdso/Makefile) set `-fcall-used-g5` and `-fcall-used-g7` in their CFLAGS? Would it be safe if the kernel is compiled without those flags? The context is that there's an effort to make the sparc64 kernel build under LLVM/clang, and if possible we'd like to build the kernel without those flags, at least when building with clang, since it simplifies a lot of things on the LLVM side. (LLVM tracker: https://github.com/llvm/llvm-project/issues/40792)