From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Tue, 25 May 2010 15:13:54 +0200 (CEST) Received: from h5.dl5rb.org.uk ([81.2.74.5]:41094 "EHLO h5.dl5rb.org.uk" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S1491850Ab0EYNNt (ORCPT ); Tue, 25 May 2010 15:13:49 +0200 Received: from h5.dl5rb.org.uk (localhost.localdomain [127.0.0.1]) by h5.dl5rb.org.uk (8.14.3/8.14.3) with ESMTP id o4PDDh3r003394; Tue, 25 May 2010 14:13:44 +0100 Received: (from ralf@localhost) by h5.dl5rb.org.uk (8.14.3/8.14.3/Submit) id o4PDDgfX003392; Tue, 25 May 2010 14:13:42 +0100 Date: Tue, 25 May 2010 14:13:41 +0100 From: Ralf Baechle To: Dmitri Vorobiev Cc: octane indice , linux-mips@linux-mips.org Subject: Re: Cross compiling MIPS kernel under x86 Message-ID: <20100525131341.GA26500@linux-mips.org> References: <1274711094.4bfa8c3675983@www.inmano.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.20 (2009-08-17) Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 26848 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ralf@linux-mips.org Precedence: bulk X-list: linux-mips On Mon, May 24, 2010 at 05:33:01PM +0300, Dmitri Vorobiev wrote: > It looks like your toolchain is quite old. I just tried building a > Cavium Octeon defconfig using my custom toolchain based on GCC 4.3.1 > and binutils 2.19.51.20090304, and the build was successfull. Before > you ask: yes, GCC did receive `-march=octeon' :) Tools requirements to build a kernel have become a little bit confusing. I'm sure there are more restrictions that I've forgot. * The Lemote 2F defconfig requires binutils 2.20 to build. * GCC 3.2 is a lost cause for building 64-bit kernels * GCC 3.3 is broken but can just about be kludged to build a 64-bit kernel. * GCC 4.4 or a patched older version is required to build a kernel O2 or Indigo² with R10000 processors. * GCC 3.2 used to work for the rest but it's a very long time since I tested this for a modern kernel. * Linux 2.6.29 and older need a GCC older than 4.4.0 to compile. Ralf