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kconfig: do not use allnoconfig_y option

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allnoconfig_y is an ugly hack that sets a symbol to 'y' by allnoconfig.

allnoconfig does not mean a minimal set of CONFIG options because a
bunch of prompts are hidden by 'if EMBEDDED' or 'if EXPERT', but I do
not like to hack Kconfig this way.

Use the pre-existing feature, KCONFIG_ALLCONFIG, to provide a one
liner config fragment. CONFIG_EMBEDDED=y is still forced when
allnoconfig is invoked as a part of tinyconfig.

No change in the .config file produced by 'make tinyconfig'.

The output of 'make allnoconfig' will be changed; we will get
CONFIG_EMBEDDED=n because allnoconfig literally sets all symbols to n.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada 2021-03-14 04:48:34 +09:00
parent dd4659963a
commit f8f0d06438
3 changed files with 3 additions and 2 deletions
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1
init/Kconfig
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@ -1768,7 +1768,6 @@ config DEBUG_RSEQ
config EMBEDDED
bool "Embedded system"
option allnoconfig_y
select EXPERT
help
This option should be enabled if compiling the kernel for

1
kernel/configs/tiny-base.config Normal file
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@ -0,0 +1 @@
CONFIG_EMBEDDED=y

3
scripts/kconfig/Makefile
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@ -102,7 +102,8 @@ configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/c
PHONY += tinyconfig
tinyconfig:
$(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
$(Q)KCONFIG_ALLCONFIG=kernel/configs/tiny-base.config $(MAKE) -f $(srctree)/Makefile allnoconfig
$(Q)$(MAKE) -f $(srctree)/Makefile tiny.config
# CHECK: -o cache_dir=<path> working?
PHONY += testconfig