From afa974b771281fd89e8fdcb71152152f17fb8303 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 17 Jan 2019 19:02:43 +0900 Subject: kbuild: add real-prereqs shorthand for $(filter-out FORCE,$^) In Kbuild, if_changed and friends must have FORCE as a prerequisite. Hence, $(filter-out FORCE,$^) or $(filter-out $(PHONY),$^) is a common idiom to get the names of all the prerequisites except phony targets. Add real-prereqs as a shorthand. Note: We cannot replace $(filter %.o,$^) in cmd_link_multi-m because $^ may include auto-generated dependencies from the .*.cmd file when a single object module is changed into a multi object module. Refer to commit 69ea912fda74 ("kbuild: remove unneeded link_multi_deps"). I added some comment to avoid accidental breakage. Signed-off-by: Masahiro Yamada Acked-by: Rob Herring --- arch/s390/boot/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/s390/boot/Makefile') diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile index b4d8a426ec74..11ca8795b74a 100644 --- a/arch/s390/boot/Makefile +++ b/arch/s390/boot/Makefile @@ -58,7 +58,7 @@ $(obj)/compressed/vmlinux: $(obj)/startup.a FORCE $(Q)$(MAKE) $(build)=$(obj)/compressed $@ quiet_cmd_ar = AR $@ - cmd_ar = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(filter $(OBJECTS), $^) + cmd_ar = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(real-prereqs) $(obj)/startup.a: $(OBJECTS) FORCE $(call if_changed,ar) -- cgit v1.2.3