From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mo4.mail-out.ovh.net ([178.32.228.4]) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Qlj0T-0007DB-Mp for barebox@lists.infradead.org; Tue, 26 Jul 2011 14:53:14 +0000 Received: from mail182.ha.ovh.net (b6.ovh.net [213.186.33.56]) by mo4.mail-out.ovh.net (Postfix) with SMTP id 48CDDFFC872 for ; Tue, 26 Jul 2011 16:53:56 +0200 (CEST) Date: Tue, 26 Jul 2011 16:35:48 +0200 From: Jean-Christophe PLAGNIOL-VILLARD Message-ID: <20110726143548.GH10037@game.jcrosoft.org> References: <4E2EC796.7070408@googlemail.com> <4E2ECD3A.1060509@pengutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <4E2ECD3A.1060509@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: Marc Kleine-Budde Cc: barebox@lists.infradead.org On 16:20 Tue 26 Jul , Marc Kleine-Budde wrote: > 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. > agreed at 100% Best Regards, J. _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox