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| author |   Masahiro Yamada <yamada.masahiro@socionext.com> | 2019-10-16 14:15:47 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2019-11-11 20:10:01 +0900 |
| commit | 2dffd23f81a365307c0edcf9cb40b6ddae2b481e (patch) | |
| tree | 6116175293c80bf50bc18af8da829501a7fabcbf /scripts/Makefile.build | |
| parent | kbuild: reduce KBUILD_SINGLE_TARGETS as descending into subdirectories (diff) | |
| download | linux-dev-2dffd23f81a365307c0edcf9cb40b6ddae2b481e.tar.xz linux-dev-2dffd23f81a365307c0edcf9cb40b6ddae2b481e.zip | |
kbuild: make single target builds much faster
Since commit 394053f4a4b3 ("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: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'scripts/Makefile.build')
| -rw-r--r-- | scripts/Makefile.build | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index dcbb0124dac4..7eabbb66a65c 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -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 |