From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758637AbWLFAWl (ORCPT ); Tue, 5 Dec 2006 19:22:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758543AbWLFAWl (ORCPT ); Tue, 5 Dec 2006 19:22:41 -0500 Received: from caramon.arm.linux.org.uk ([217.147.92.249]:2107 "EHLO caramon.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758637AbWLFAWk (ORCPT ); Tue, 5 Dec 2006 19:22:40 -0500 Date: Wed, 6 Dec 2006 00:22:26 +0000 From: Russell King To: "Michael K. Edwards" Cc: Linux Kernel List , Sam Ravnborg , linux-arm-toolchain@lists.arm.linux.org.uk, linux-arm-kernel@lists.arm.linux.org.uk, crossgcc@sourceware.org Subject: Re: More ARM binutils fuckage Message-ID: <20061206002226.GK24038@flint.arm.linux.org.uk> Mail-Followup-To: "Michael K. Edwards" , Linux Kernel List , Sam Ravnborg , linux-arm-toolchain@lists.arm.linux.org.uk, linux-arm-kernel@lists.arm.linux.org.uk, crossgcc@sourceware.org References: <20061205193357.GF24038@flint.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Dec 05, 2006 at 03:29:22PM -0800, Michael K. Edwards wrote: > On 12/5/06, Russell King wrote: > >There's not much to say about this, other than scream and go hide in the > >corner. ARM toolchains are just basically fscked. > > And while we're on the topic of ARM linux toolchain fsckage, it would > be nice to know what patches and incantations are currently > recommended when configuring gcc for building various modern ARM > kernel/ABI configurations (OABI + soft VFP, EABI, etc.). There is no such thing as soft VFP. I can only talk from the requirements of the kernel. gcc 3.4.3 is the minimum for ARM, which with binutils 2.17 will allow you to build the kernel as OABI in *any* configuration. No patches required for either. Enabling EABI needs a compiler which supports EABI. That's where I get fuzzy but recent gcc 4 should be suitable. I have had it suggested to me that EABI support in the toolchain isn't all that stable at the moment. As for userspace... and NPTL, that's a different matter. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: