make/project_config.mk

   1 # Makefile support for the menuconfig system
   2
   3 #Find all Kconfig files for all components
   4 COMPONENT_KCONFIGS := $(foreach component,$(COMPONENT_PATHS),$(wildcard $(component)/Kconfig))
   5 COMPONENT_KCONFIGS_PROJBUILD := $(foreach component,$(COMPONENT_PATHS),$(wildcard $(component)/Kconfig.projbuild))
   6
   7 #For doing make menuconfig etc
   8 KCONFIG_TOOL_DIR=$(IDF_PATH)/tools/kconfig
   9
  10 # set SDKCONFIG to the project's sdkconfig,
  11 # unless it's overriden (happens for bootloader)
  12 SDKCONFIG ?= $(PROJECT_PATH)/sdkconfig
  13
  14 # SDKCONFIG_DEFAULTS is an optional file containing default
  15 # overrides (usually used for esp-idf examples)
  16 SDKCONFIG_DEFAULTS ?= $(PROJECT_PATH)/sdkconfig.defaults
  17
  18 # reset MAKEFLAGS as the menuconfig makefile uses implicit compile rules
  19 $(KCONFIG_TOOL_DIR)/mconf $(KCONFIG_TOOL_DIR)/conf: $(wildcard $(KCONFIG_TOOL_DIR)/*.c)
  20         MAKEFLAGS="" CC=$(HOSTCC) LD=$(HOSTLD) \
  21         $(MAKE) -C $(KCONFIG_TOOL_DIR)
  22
  23 ifeq ("$(wildcard $(SDKCONFIG))","")
  24 ifeq ("$(filter defconfig clean% %clean, $(MAKECMDGOALS))","")
  25 # if no configuration file is present and defconfig or clean
  26 # is not a named target, run defconfig then menuconfig to get the initial config
  27 $(SDKCONFIG): menuconfig
  28 menuconfig: defconfig
  29 else
  30 # otherwise, just run defconfig
  31 $(SDKCONFIG): defconfig
  32 endif
  33 endif
  34
  35 # macro for the commands to run kconfig tools conf or mconf.
  36 # $1 is the name (& args) of the conf tool to run
  37 define RunConf
  38         mkdir -p $(BUILD_DIR_BASE)/include/config
  39         cd $(BUILD_DIR_BASE); KCONFIG_AUTOHEADER=$(abspath $(BUILD_DIR_BASE)/include/sdkconfig.h) \
  40         COMPONENT_KCONFIGS="$(COMPONENT_KCONFIGS)" KCONFIG_CONFIG=$(SDKCONFIG) \
  41         COMPONENT_KCONFIGS_PROJBUILD="$(COMPONENT_KCONFIGS_PROJBUILD)" \
  42         $(KCONFIG_TOOL_DIR)/$1 $(IDF_PATH)/Kconfig
  43 endef
  44
  45 ifndef MAKE_RESTARTS
  46 # menuconfig, defconfig and "GENCONFIG" configuration generation only
  47 # ever run on the first make pass, subsequent passes don't run these
  48 # (make often wants to re-run them as the conf tool can regenerate the
  49 # sdkconfig input file as an output file, but this is not what the
  50 # user wants - a single config pass is enough to produce all output
  51 # files.)
  52 #
  53 # To prevent problems missing genconfig, ensure none of these targets
  54 # depend on any prerequisite that may cause a make restart as part of
  55 # the prerequisite's own recipe.
  56
  57 menuconfig: $(KCONFIG_TOOL_DIR)/mconf
  58         $(summary) MENUCONFIG
  59 ifdef BATCH_BUILD
  60         @echo "Can't run interactive configuration inside non-interactive build process."
  61         @echo ""
  62         @echo "Open a command line terminal and run 'make menuconfig' from there."
  63         @echo "See esp-idf documentation for more details."
  64         @exit 1
  65 else
  66         $(call RunConf,mconf)
  67 endif
  68
  69 # defconfig creates a default config, based on SDKCONFIG_DEFAULTS if present
  70 defconfig: $(KCONFIG_TOOL_DIR)/conf
  71         $(summary) DEFCONFIG
  72 ifneq ("$(wildcard $(SDKCONFIG_DEFAULTS))","")
  73         cat $(SDKCONFIG_DEFAULTS) >> $(SDKCONFIG)  # append defaults to sdkconfig, will override existing values
  74 endif
  75         $(call RunConf,conf --olddefconfig)
  76
  77 # if neither defconfig or menuconfig are requested, use the GENCONFIG rule to
  78 # ensure generated config files are up to date
  79 $(SDKCONFIG_MAKEFILE) $(BUILD_DIR_BASE)/include/sdkconfig.h: $(KCONFIG_TOOL_DIR)/conf $(SDKCONFIG) $(COMPONENT_KCONFIGS) $(COMPONENT_KCONFIGS_PROJBUILD) | $(call prereq_if_explicit,defconfig) $(call prereq_if_explicit,menuconfig)
  80         $(summary) GENCONFIG
  81 ifdef BATCH_BUILD  # can't prompt for new config values like on terminal
  82         $(call RunConf,conf --olddefconfig)
  83 endif
  84         $(call RunConf,conf --silentoldconfig)
  85         touch $(SDKCONFIG_MAKEFILE) $(BUILD_DIR_BASE)/include/sdkconfig.h  # ensure newer than sdkconfig
  86
  87 else  # "$(MAKE_RESTARTS)" != ""
  88 # on subsequent make passes, skip config generation entirely
  89 defconfig:
  90 menuconfig:
  91 endif
  92
  93 .PHONY: config-clean defconfig menuconfig
  94 config-clean:
  95         $(summary) RM CONFIG
  96         MAKEFLAGS="" $(MAKE) -C $(KCONFIG_TOOL_DIR) clean
  97         rm -rf $(BUILD_DIR_BASE)/include/config $(BUILD_DIR_BASE)/include/sdkconfig.h