Current kbuild just supports building built-in.o in second directory level individually. There is no rule to build those built-in.o targets below third directory level.
Even current kbuild system could achieve this with rule "%/", while this not only builds built-in targes but also lib target, extra target and module objects. This patch adds the "%/built-in.o" rule so that each built-in.o in the kernel tree could be the build target, which looks more consistent for the kbuild system. Signed-off-by: Wei Yang <[email protected]> --- v2 . add FORCE in prerequest --- Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Makefile b/Makefile index f97f786..9c65498 100644 --- a/Makefile +++ b/Makefile @@ -1638,6 +1638,8 @@ endif $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) %.symtypes: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) +%/built-in.o: prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) # Modules /: prepare scripts FORCE -- 2.5.0
