From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-fx0-f49.google.com ([209.85.161.49]) by canuck.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1QmQRF-0002xf-5h for barebox@lists.infradead.org; Thu, 28 Jul 2011 13:15:46 +0000 Received: by fxd20 with SMTP id 20so1490418fxd.36 for ; Thu, 28 Jul 2011 06:15:38 -0700 (PDT) Message-ID: <4E3160F6.3090105@googlemail.com> Date: Thu, 28 Jul 2011 15:15:34 +0200 From: Andre Naujoks MIME-Version: 1.0 References: <4E2EC796.7070408@googlemail.com> <4E2ECD3A.1060509@pengutronix.de> <4E2FB2D8.4000306@googlemail.com> <4E2FDF54.6000804@googlemail.com> <20110728115234.GV20587@pengutronix.de> In-Reply-To: <20110728115234.GV20587@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: barebox compilation with gcc 4.5.2 and ptxdist To: Sascha Hauer Cc: barebox@lists.infradead.org Am 28.07.2011 13:52, schrieb Sascha Hauer: > On Wed, Jul 27, 2011 at 11:50:12AM +0200, Andre Naujoks wrote: >> Am 27.07.2011 08:40, schrieb Andre Naujoks: >>> Am 26.07.2011 16:20, schrieb Marc Kleine-Budde: >>>> On 07/26/2011 03:56 PM, Andre Naujoks wrote: >>>>> Hello. >>>>> >>>>> We are currently trying to compile a barebox with the git version of >>>>> ptxdist and the git version of the OSELAS generic Toolchain for powerpc. >>>>> >>>>> Also the current 2011.07.0 release of barebox. >>>>> >>>>> We are having some problems during the build, which I think are a result >>>>> of some changes in gcc's optimizations (since 4.4.something). GCC uses >>>>> some functions on the ppc platform to optimze the size of the resulting >>>>> binary, which are only present in the libgcc.a. >>>>> >>>>> The compile stage works fine up tp the last linker step: >>>>> >>>>> CC arch/ppc/lib/time.o >>>>> AS arch/ppc/lib/misc.o >>>>> CC arch/ppc/lib/ppclinux.o >>>>> CC arch/ppc/lib/board_data.o >>>>> LD arch/ppc/lib/built-in.o >>>>> LD barebox >>>>> common/built-in.o: In function `mapset': >>>>> hush.c:(.text.mapset+0x44): undefined reference to `_restgpr_30_x' >>>>> common/built-in.o: In function `syntax_err': >>>>> hush.c:(.text.syntax_err+0x34): undefined reference to `_restgpr_30_x' >>>>> common/built-in.o: In function `done_command': >>>>> hush.c:(.text.done_command+0x94): undefined reference to `_restgpr_29_x' >>>>> common/built-in.o: In function `done_pipe': >>>>> hush.c:(.text.done_pipe+0x5c): undefined reference to `_restgpr_29_x' >>>>> common/built-in.o: In function `is_assignment': >>>>> hush.c:(.text.is_assignment+0x8c): undefined reference to `_restgpr_27_x' >>>>> common/built-in.o: In function `b_addchr': >>>>> hush.c:(.text.b_addchr+0x8c): undefined reference to `_restgpr_28_x' >>>>> common/built-in.o: In function `b_addqchr': >>>>> hush.c:(.text.b_addqchr+0x78): undefined reference to `_restgpr_29_x' >>>>> ... >>>>> >>>>> >>>>> This goes on for a few pages. >>>>> >>>>> As far as I can see, the possibilities I have here, is to either >>>>> integrate the missing functions out of the gcc sources into barebox, or >>>>> make barebox link with libgcc, which seems surprisingly difficult, due >>>>> to the unfamiliar (to me) build process. A simple LDFLAGS_barebox+=-l.. >>>>> -L.. did not help here. >>>>> >>>>> Am I right with this assumption, or am I missing something else here? >>>> >>>> We don't want to link barebox against libgcc, that's bad style. I >>>> suggest to port arch/powerpc/lib/crtsavres.S from the linux kernel to >>>> barebox. >>> >>> Thanks. I will give this a shot and see how far I get. If it works I >>> will come back with a patch. >> >> Hi. >> >> With a little help from a collegue, we came up with the patches in the >> followong mails. Basically the kernel files without the 64 bit parts. >> >> The second patch was another part of libgcc, which seemed to fit best in >> the misc.S file, which was already present. > > Applied to -master. Thats great. Thanks! Andre > > Thanks > Sascha > _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox