Commit 93fdddfe authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

kbuild: add this-makefile as a shorthand for $(lastword $(MAKEFILE_LIST)) 



Make it clearer, and self-documenting.

Signed-off-by: default avatarMasahiro Yamada <masahiroy@kernel.org>
parent 827365ff

Makefile

+4 −2
Original line number Diff line number Diff line
@@ -157,12 +157,14 @@ MAKEFLAGS += --include-dir=$(abs_srctree) 
need-sub-make := 1

endif



this-makefile := $(lastword $(MAKEFILE_LIST))



ifneq ($(filter 3.%,$(MAKE_VERSION)),)

# 'MAKEFLAGS += -rR' does not immediately become effective for GNU Make 3.x

# We need to invoke sub-make to avoid implicit rules in the top Makefile.

need-sub-make := 1

# Cancel implicit rules for this Makefile.

$(lastword $(MAKEFILE_LIST)): ;

$(this-makefile): ;

endif



export abs_srctree abs_objtree
@@ -172,7 +174,7 @@ ifeq ($(need-sub-make),1) 


PHONY += $(MAKECMDGOALS) sub-make



$(filter-out _all sub-make $(lastword $(MAKEFILE_LIST)), $(MAKECMDGOALS)) _all: sub-make

$(filter-out _all sub-make $(this-makefile), $(MAKECMDGOALS)) _all: sub-make

	@:



# Invoke a second make in the output directory, passing relevant variables