Commit 2dffd23f authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

kbuild: make single target builds much faster 



Since commit 394053f4 ("kbuild: make single targets work more
correctly"), building single targets is really slow.

Speed it up by not descending into unrelated directories.

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
parent 20312629

scripts/Makefile.build

+4 −1
Original line number Diff line number Diff line
@@ -479,7 +479,10 @@ curdir-single := $(sort $(foreach x, $(KBUILD_SINGLE_TARGETS), \ 
unknown-single := $(filter-out $(addsuffix /%, $(subdir-ym)), \

			$(filter-out $(curdir-single), $(KBUILD_SINGLE_TARGETS)))



__build: $(curdir-single) $(subdir-ym)

single-subdirs := $(foreach d, $(subdir-ym), \

			$(if $(filter $(d)/%, $(KBUILD_SINGLE_TARGETS)), $(d)))



__build: $(curdir-single) $(single-subdirs)

ifneq ($(unknown-single),)

	$(Q)$(MAKE) -f /dev/null $(unknown-single)

endif

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