Messages in this thread | | | Date | Tue, 16 Aug 2011 17:36:56 -0700 | From | Darren Hart <> | 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
| |