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/x86/realmode/rm/Makefile | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'arch/x86/realmode') diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile index 4463fa72db94..394377c9f7f8 100644 --- a/arch/x86/realmode/rm/Makefile +++ b/arch/x86/realmode/rm/Makefile @@ -37,8 +37,7 @@ REALMODE_OBJS = $(addprefix $(obj)/,$(realmode-y)) sed-pasyms := -n -r -e 's/^([0-9a-fA-F]+) [ABCDGRSTVW] (.+)$$/pa_\2 = \2;/p' quiet_cmd_pasyms = PASYMS $@ - cmd_pasyms = $(NM) $(filter-out FORCE,$^) | \ - sed $(sed-pasyms) | sort | uniq > $@ + cmd_pasyms = $(NM) $(real-prereqs) | sed $(sed-pasyms) | sort | uniq > $@ targets += pasyms.h $(obj)/pasyms.h: $(REALMODE_OBJS) FORCE -- cgit v1.2.3