From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933576AbZHGUBb (ORCPT ); Fri, 7 Aug 2009 16:01:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933185AbZHGUBb (ORCPT ); Fri, 7 Aug 2009 16:01:31 -0400 Received: from caramon.arm.linux.org.uk ([78.32.30.218]:34820 "EHLO caramon.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933520AbZHGUBa (ORCPT ); Fri, 7 Aug 2009 16:01:30 -0400 Date: Fri, 7 Aug 2009 21:00:01 +0100 From: Russell King - ARM Linux To: Albin Tonnerre Cc: Matthieu CASTET , Alain Knaff , "sam@ravnborg.org" , "hpa@zytor.com" , "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 Message-ID: <20090807200001.GE31543@n2100.arm.linux.org.uk> 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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090807135524.GF4455@laptop> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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?