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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 F03B6C4167B for ; Wed, 6 Dec 2023 16:28:29 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4SljWc4zn7z3cVH for ; Thu, 7 Dec 2023 03:28:28 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.crashing.org (client-ip=63.228.1.57; helo=gate.crashing.org; envelope-from=segher@kernel.crashing.org; receiver=lists.ozlabs.org) Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) by lists.ozlabs.org (Postfix) with ESMTP id 4SljW463dbz3bWH for ; Thu, 7 Dec 2023 03:28:00 +1100 (AEDT) Received: from gate.crashing.org (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id 3B6GPvZL030148; Wed, 6 Dec 2023 10:25:57 -0600 Received: (from segher@localhost) by gate.crashing.org (8.14.1/8.14.1/Submit) id 3B6GPuau030147; Wed, 6 Dec 2023 10:25:56 -0600 X-Authentication-Warning: gate.crashing.org: segher set sender to segher@kernel.crashing.org using -f Date: Wed, 6 Dec 2023 10:25:56 -0600 From: Segher Boessenkool To: Michael Ellerman Subject: Re: [PATCH 4/4] powerpc/Makefile: Auto detect cross compiler Message-ID: <20231206162556.GK19790@gate.crashing.org> References: <20231206115548.1466874-1-mpe@ellerman.id.au> <20231206115548.1466874-4-mpe@ellerman.id.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231206115548.1466874-4-mpe@ellerman.id.au> User-Agent: Mutt/1.4.2.3i X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Wed, Dec 06, 2023 at 10:55:48PM +1100, Michael Ellerman wrote: > Look for various combinations, matching: > powerpc(64(le)?)?(-unknown)?-linux(-gnu)?- > > There are more possibilities, but the above is known to find a compiler > on Fedora and Ubuntu (which use linux-gnu-), and also detects the > kernel.org cross compilers (which use linux-). $ sh ../config.sub powerpc64-linux powerpc64-unknown-linux-gnu I am very very lazy, so buildall uses short names everywhere :-) Btw, can you build the kernel for a config that differs in 32/64 or BE/LE with the default your compiler uses? There is no reason this shouldn't work (you don't use any system libraries), but you need to use the correct compiler command-line flags for that always. Acked-by: Segher Boessenkool Segher