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Date: Tue, 16 Aug 2011 17:36:56 -0700 From: Darren Hart <dvhart@...ux.intel.com> To: "lkml, " <linux-kernel@...r.kernel.org> CC: Paul Mackerras <paulus@...ba.org>, Gary Thomas <gary@...assoc.com>, "Woodhouse, David" <david.woodhouse@...el.com> Subject: can't build modules after clean for powerpc According to the Makefile comments and Documentation/kconfig/makefile.txt, make clean should leave enough intact to build modules with: ### # Cleaning is done on three levels. # make clean Delete most generated files # Leave enough to build external modules The following line in the arch/powerpc/Makefile prevents that from working: KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o External module compilation fails to link as it can't find arch/powerpc/lib/crtsavres.o. It appears from the make logs that crtsavres.o is linked in to built-in.o, and thus vmlinux. If that is the case, it doesn't seem like crtsavres.o should need to be singled out. What am I missing here? If I comment it out: #KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o my example module builds successfully. If it is necessary, then we need a means to instruct the top level makefile to not delete it during "clean". Is there such a directive? KBUILD_CLEAN_EXCLUDE_MODULES or something? Thanks, -- Darren Hart Intel Open Source Technology Center Yocto Project - Linux Kernel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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