From patchwork Thu Sep 24 11:28:11 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuri Frolov X-Patchwork-Id: 34218 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from bilbo.ozlabs.org (localhost [127.0.0.1]) by ozlabs.org (Postfix) with ESMTP id A229AB7BE2 for ; Thu, 24 Sep 2009 21:28:21 +1000 (EST) Received: from mail.dev.rtsoft.ru (mail.dev.rtsoft.ru [213.79.90.226]) by ozlabs.org (Postfix) with SMTP id B52CDB7334 for ; Thu, 24 Sep 2009 21:28:14 +1000 (EST) Received: (qmail 20727 invoked from network); 24 Sep 2009 11:28:12 -0000 Received: from unknown (HELO ?192.168.11.213?) (192.168.1.70) by 0 with SMTP; 24 Sep 2009 11:28:12 -0000 Message-ID: <4ABB57CB.3000409@ru.mvista.com> Date: Thu, 24 Sep 2009 15:28:11 +0400 From: Yuri Frolov 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: linuxppc-dev@lists.ozlabs.org Subject: [patch] powerpc: build modules outside the kernel tree fails, if it was built using O= Cc: rep.dot.nop@gmail.com, linux-kbuild@vger.kernel.org X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Hello, here is a corresponding bug: http://bugzilla.kernel.org/show_bug.cgi?id=11143 This patch should correctly export crtsavres.o in order to make O= option working. Please, consider to apply. Fix linking modules against crtsavres.o Previously we got CC drivers/char/hw_random/rng-core.mod.o LD [M] drivers/char/hw_random/rng-core.ko /there/src/buildroot.git.ppc/build_powerpc_nofpu/staging_dir/usr/bin/powerpc-linux-uclibc-ld: arch/powerpc/lib/crtsavres.o: No such file: No such file or directory * Makefile (LDFLAGS_MODULE_PREREQ): New variable to hold prerequisite files for modules. * arch/powerpc/Makefile: add crtsavres.o to LDFLAGS_MODULE_PREREQ. * scripts/Makefile.modpost (cmd_as_o_S): Copy from Makefile.build. (cmd_ld_ko_o): Also link LDFLAGS_MODULE_PREREQ. Provide rule to build objects from assembler. Signed-off-by: Bernhard Reutner-Fischer Signed-off by: Yuri Frolov Makefile | 2 ++ arch/powerpc/Makefile | 2 +- scripts/Makefile.modpost | 12 ++++++++++-- 3 files changed, 13 insertions(+), 3 deletions(-) diff -urpN -X linux-2.6/Documentation/dontdiff linux-2.6/arch/powerpc/Makefile linux-2.6-powerpc-crtsavres/arch/powerpc/Makefile --- linux-2.6/arch/powerpc/Makefile 2009-09-17 20:04:31.000000000 +0400 +++ linux-2.6-powerpc-crtsavres/arch/powerpc/Makefile 2009-09-23 22:08:03.000000000 +0400 @@ -93,7 +93,7 @@ else KBUILD_CFLAGS += $(call cc-option,-mtune=power4) endif else -LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o +LDFLAGS_MODULE_PREREQ += arch/powerpc/lib/crtsavres.o endif ifeq ($(CONFIG_TUNE_CELL),y) diff -urpN -X linux-2.6/Documentation/dontdiff linux-2.6/Makefile linux-2.6-powerpc-crtsavres/Makefile --- linux-2.6/Makefile 2009-09-17 20:04:30.000000000 +0400 +++ linux-2.6-powerpc-crtsavres/Makefile 2009-09-23 21:41:16.000000000 +0400 @@ -326,6 +326,7 @@ MODFLAGS = -DMODULE CFLAGS_MODULE = $(MODFLAGS) AFLAGS_MODULE = $(MODFLAGS) LDFLAGS_MODULE = -T $(srctree)/scripts/module-common.lds +LDFLAGS_MODULE_PREREQ = CFLAGS_KERNEL = AFLAGS_KERNEL = CFLAGS_GCOV = -fprofile-arcs -ftest-coverage @@ -355,6 +356,7 @@ export VERSION PATCHLEVEL SUBLEVEL KERNE export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS +export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE LDFLAGS_MODULE_PREREQ CHECK CHECKFLAGS export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV diff -urpN -X linux-2.6/Documentation/dontdiff linux-2.6/scripts/Makefile.modpost linux-2.6-powerpc-crtsavres/scripts/Makefile.modpost --- linux-2.6/scripts/Makefile.modpost 2009-09-17 20:04:42.000000000 +0400 +++ linux-2.6-powerpc-crtsavres/scripts/Makefile.modpost 2009-09-23 22:15:00.000000000 +0400 @@ -122,14 +122,22 @@ quiet_cmd_cc_o_c = CC $@ cmd_cc_o_c = $(CC) $(c_flags) $(CFLAGS_MODULE) \ -c -o $@ $< -$(modules:.ko=.mod.o): %.mod.o: %.mod.c FORCE +quiet_cmd_as_o_S = AS $(quiet_modtag) $@ +cmd_as_o_S = $(CC) $(a_flags) $(AFLAGS_MODULE) -c -o $@ $< + +$(LDFLAGS_MODULE_PREREQ): %.o: %.S FORCE + $(Q)mkdir -p $(dir $@) + $(call if_changed_dep,as_o_S) + +$(modules:.ko=.mod.o): %.mod.o: %.mod.c $(LDFLAGS_MODULE_PREREQ) FORCE $(call if_changed_dep,cc_o_c) targets += $(modules:.ko=.mod.o) # Step 6), final link of the modules quiet_cmd_ld_ko_o = LD [M] $@ - cmd_ld_ko_o = $(LD) -r $(LDFLAGS) $(LDFLAGS_MODULE) -o $@ \ + cmd_ld_ko_o = $(LD) -r $(LDFLAGS) $(LDFLAGS_MODULE_PREREQ) \ + $(LDFLAGS_MODULE) -o $@ \ $(filter-out FORCE,$^) $(modules): %.ko :%.o %.mod.o FORCE