From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933775AbZHGU1E (ORCPT ); Fri, 7 Aug 2009 16:27:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933707AbZHGU1C (ORCPT ); Fri, 7 Aug 2009 16:27:02 -0400 Received: from terminus.zytor.com ([198.137.202.10]:55481 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933685AbZHGU1B (ORCPT ); Fri, 7 Aug 2009 16:27:01 -0400 Message-ID: <4A7C8CD3.1090404@zytor.com> Date: Fri, 07 Aug 2009 13:21:39 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1b3pre) Gecko/20090513 Fedora/3.0-2.3.beta2.fc11 Thunderbird/3.0b2 MIME-Version: 1.0 To: Russell King - ARM Linux CC: Albin Tonnerre , Matthieu CASTET , Alain Knaff , "sam@ravnborg.org" , "linux-kernel@vger.kernel.org" , "linux-embedded@vger.kernel.org" , "akpm@linux-foundation.org" Subject: Re: [PATCH 4/6] Add support for LZO-compressed kernels for ARM References: <1249311501-23102-3-git-send-email-albin.tonnerre@free-electrons.com> <1249311501-23102-4-git-send-email-albin.tonnerre@free-electrons.com> <20090806224055.GH31579@n2100.arm.linux.org.uk> <20090807092423.GA4455@laptop> <4A7BF5B8.4030907@knaff.lu> <20090807102117.GB4455@laptop> <4A7C14EB.1060701@parrot.com> <20090807130130.GE4455@laptop> <4A7C2BA4.7030408@parrot.com> <20090807135524.GF4455@laptop> <20090807200001.GE31543@n2100.arm.linux.org.uk> In-Reply-To: <20090807200001.GE31543@n2100.arm.linux.org.uk> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/07/2009 01:00 PM, Russell King - ARM Linux wrote: > On Fri, Aug 07, 2009 at 03:55:24PM +0200, Albin Tonnerre wrote: >> That's true for the actual kernel image, but not for the bootstrap code we use >> when compiling compressed kernels. arch/arm/boot/compressed/Makefile uses >> libgcc, unless I'm overlooking something here: >> >> arm-unknown-linux-uclibcgnueabi-ld -EL --defsym zreladdr=0x20008000 >> --defsym initrd_phys=0x20410000 --defsym params_phys=0x20000100 -p >> --no-undefined -X >> /home/albin/x-tools/arm-unknown-linux-uclibcgnueabi/lib/gcc/arm-unknown-linux-uclibcgnueabi/4.3.2/libgcc.a >> -T arch/arm/boot/compressed/vmlinux.lds arch/arm/boot/compressed/head.o >> arch/arm/boot/compressed/piggy.gzip.o arch/arm/boot/compressed/misc.o -o >> arch/arm/boot/compressed/vmlinux > > It's because libgcc appears in the wrong place in the command line, and > due to the way kbuild works, we can't get it into the right place easily. > > Linkers are sensitive to the order of archives on the command line - its > pointless having an archive as the first file argument because none of > the contained objects will ever be pulled in. > > Sam - any ideas how to solve this? Can we use the group feature of ld for this? -hpa