From: Darren Hart <dvhart@linux.intel.com>
To: "lkml, " <linux-kernel@vger.kernel.org>
Cc: Paul Mackerras <paulus@samba.org>,
Gary Thomas <gary@mlbassoc.com>,
"Woodhouse, David" <david.woodhouse@intel.com>
Subject: can't build modules after clean for powerpc
Date: Tue, 16 Aug 2011 17:36:56 -0700 [thread overview]
Message-ID: <4E4B0D28.7010905@linux.intel.com> (raw)
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
next reply other threads:[~2011-08-17 0:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-17 0:36 Darren Hart [this message]
2011-08-17 7:49 ` can't build modules after clean for powerpc Sam Ravnborg
2011-08-17 19:02 ` Darren Hart
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