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kbuild: use 'output' variable to create the output directory

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$(KBUILD_OUTPUT) specifies the output directory of kernel builds.

Use a more generic name, 'output', to better reflect this code hunk in
the context of external module builds.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
This commit is contained in:
Masahiro Yamada 2024-11-10 10:34:32 +09:00
parent 5ea1721654
commit d171136019
1 changed files with 8 additions and 6 deletions
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14
Makefile
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@ -176,18 +176,20 @@ export KBUILD_EXTRA_WARN
# The O= assignment takes precedence over the KBUILD_OUTPUT environment
# variable.
# Do we want to change the working directory?
ifeq ("$(origin O)", "command line")
KBUILD_OUTPUT := $(O)
endif
ifneq ($(KBUILD_OUTPUT),)
output := $(KBUILD_OUTPUT)
# Do we want to change the working directory?
ifneq ($(output),)
# $(realpath ...) gets empty if the path does not exist. Run 'mkdir -p' first.
$(shell mkdir -p "$(KBUILD_OUTPUT)")
$(shell mkdir -p "$(output)")
# $(realpath ...) resolves symlinks
abs_output := $(realpath $(KBUILD_OUTPUT))
$(if $(abs_output),,$(error failed to create output directory "$(KBUILD_OUTPUT)"))
endif # ifneq ($(KBUILD_OUTPUT),)
abs_output := $(realpath $(output))
$(if $(abs_output),,$(error failed to create output directory "$(output)"))
endif
ifneq ($(words $(subst :, ,$(abs_srctree))), 1)
$(error source directory cannot contain spaces or colons)