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makefiles/kconfig.mk: generate config file from RIOT_CONFIG_% vars

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Martine Lenders 2021-02-23 10:34:26 +01:00
parent d9973d4bf8
commit 28931da0ed
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1 changed files with 14 additions and 0 deletions
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14
makefiles/kconfig.mk
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@ -42,6 +42,11 @@ endif
# Default and user overwritten configurations
KCONFIG_USER_CONFIG = $(APPDIR)/user.config
# This file will contain configuration using the `RIOT_CONFIG_<CONFIG>`
# environment variables. Used to enforce a rerun of GENCONFIG when environment
# changes.
KCONFIG_GENERATED_ENV_CONFIG = $(GENERATED_DIR)/env.config
# This is the output of the generated configuration. It always mirrors the
# content of KCONFIG_GENERATED_AUTOCONF_HEADER_C, and it is used to load
# configuration symbols to the build system.
@ -63,6 +68,7 @@ KCONFIG_OUT_DEP = $(KCONFIG_OUT_CONFIG).d
MERGE_SOURCES += $(KCONFIG_ADD_CONFIG)
MERGE_SOURCES += $(wildcard $(KCONFIG_APP_CONFIG))
MERGE_SOURCES += $(wildcard $(KCONFIG_USER_CONFIG))
MERGE_SOURCES += $(KCONFIG_GENERATED_ENV_CONFIG)
# Create directory to place generated files
$(GENERATED_DIR): $(if $(MAKE_RESTARTS),,$(CLEAN))
@ -143,6 +149,14 @@ $(KCONFIG_GENERATED_DEPENDENCIES): FORCE | $(GENERATED_DIR)
printf "config %s\n\tbool\n\tdefault y\n", toupper($$0)}' \
| $(LAZYSPONGE) $(LAZYSPONGE_FLAGS) $@
KCONFIG_ENV_CONFIG = $(patsubst RIOT_%,%,$(foreach v,$(filter RIOT_CONFIG_%,$(.VARIABLES)),$(v)=$($(v))))
# Build an intermediate file based on the `RIOT_CONFIG_<CONFIG>` environment
# variables
$(KCONFIG_GENERATED_ENV_CONFIG): FORCE | $(GENERATED_DIR)
$(Q)printf "%s\n" $(KCONFIG_ENV_CONFIG) \
| $(LAZYSPONGE) $(LAZYSPONGE_FLAGS) $@
# All directories in EXTERNAL_MODULES_PATHS which have a Kconfig file
EXTERNAL_MODULE_KCONFIGS ?= $(sort $(foreach dir,$(EXTERNAL_MODULE_PATHS),\
$(wildcard $(dir)/Kconfig)))