make/project_config.mk

   1 # Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
   2 # Copyright 2018 apeos contributors
   3 #
   4 # Makefile support for the menuconfig system
   5 #
   6 # Licensed under the Apache License, Version 2.0 (the "License");
   7 # you may not use this file except in compliance with the License.
   8 # You may obtain a copy of the License at
   9 #
  10 #     http://www.apache.org/licenses/LICENSE-2.0
  11 #
  12 # Unless required by applicable law or agreed to in writing, software
  13 # distributed under the License is distributed on an "AS IS" BASIS,
  14 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15 # See the License for the specific language governing permissions and
  16 # limitations under the License.
  17
  18 #Find all Kconfig files for all components
  19 COMPONENT_KCONFIGS := $(foreach component,$(COMPONENT_PATHS),$(wildcard $(component)/Kconfig))
  20 COMPONENT_KCONFIGS_PROJBUILD := $(foreach component,$(COMPONENT_PATHS),$(wildcard $(component)/Kconfig.projbuild)) $(IDF_PATH)/components/esp32/Kconfig
  21
  22 #For doing make menuconfig etc
  23 KCONFIG_TOOL_DIR=$(IDF_PATH)/tools/kconfig
  24
  25 # set SDKCONFIG to the project's sdkconfig,
  26 # unless it's overriden (happens for bootloader)
  27 SDKCONFIG ?= $(PROJECT_PATH)/sdkconfig
  28
  29 # SDKCONFIG_DEFAULTS is an optional file containing default
  30 # overrides (usually used for esp-idf examples)
  31 SDKCONFIG_DEFAULTS ?= $(PROJECT_PATH)/sdkconfig.defaults
  32
  33 # reset MAKEFLAGS as the menuconfig makefile uses implicit compile rules
  34 $(KCONFIG_TOOL_DIR)/mconf $(KCONFIG_TOOL_DIR)/conf: $(wildcard $(KCONFIG_TOOL_DIR)/*.c)
  35         MAKEFLAGS="" CC=$(HOSTCC) LD=$(HOSTLD) \
  36         $(MAKE) -C $(KCONFIG_TOOL_DIR)
  37
  38 ifeq ("$(wildcard $(SDKCONFIG))","")
  39 ifeq ("$(filter defconfig clean% %clean, $(MAKECMDGOALS))","")
  40 # if no configuration file is present and defconfig or clean
  41 # is not a named target, run defconfig then menuconfig to get the initial config
  42 $(SDKCONFIG): menuconfig
  43 menuconfig: defconfig
  44 else
  45 # otherwise, just run defconfig
  46 $(SDKCONFIG): defconfig
  47 endif
  48 endif
  49
  50 # macro for the commands to run kconfig tools conf or mconf.
  51 # $1 is the name (& args) of the conf tool to run
  52 define RunConf
  53         mkdir -p $(BUILD_DIR_BASE)/include/config
  54         cd $(BUILD_DIR_BASE); KCONFIG_AUTOHEADER=$(abspath $(BUILD_DIR_BASE)/include/sdkconfig.h) \
  55         COMPONENT_KCONFIGS="$(COMPONENT_KCONFIGS)" KCONFIG_CONFIG=$(SDKCONFIG) \
  56         COMPONENT_KCONFIGS_PROJBUILD="$(COMPONENT_KCONFIGS_PROJBUILD)" \
  57         $(KCONFIG_TOOL_DIR)/$1 $(IDF_PATH)/Kconfig
  58 endef
  59
  60 ifndef MAKE_RESTARTS
  61 # menuconfig, defconfig and "GENCONFIG" configuration generation only
  62 # ever run on the first make pass, subsequent passes don't run these
  63 # (make often wants to re-run them as the conf tool can regenerate the
  64 # sdkconfig input file as an output file, but this is not what the
  65 # user wants - a single config pass is enough to produce all output
  66 # files.)
  67 #
  68 # To prevent problems missing genconfig, ensure none of these targets
  69 # depend on any prerequisite that may cause a make restart as part of
  70 # the prerequisite's own recipe.
  71
  72 menuconfig: $(KCONFIG_TOOL_DIR)/mconf
  73         $(summary) MENUCONFIG
  74 ifdef BATCH_BUILD
  75         @echo "Can't run interactive configuration inside non-interactive build process."
  76         @echo ""
  77         @echo "Open a command line terminal and run 'make menuconfig' from there."
  78         @echo "See esp-idf documentation for more details."
  79         @exit 1
  80 else
  81         $(call RunConf,mconf)
  82 endif
  83
  84 # defconfig creates a default config, based on SDKCONFIG_DEFAULTS if present
  85 defconfig: $(KCONFIG_TOOL_DIR)/conf
  86         $(summary) DEFCONFIG
  87 ifneq ("$(wildcard $(SDKCONFIG_DEFAULTS))","")
  88         cat $(SDKCONFIG_DEFAULTS) >> $(SDKCONFIG)  # append defaults to sdkconfig, will override existing values
  89 endif
  90         $(call RunConf,conf --olddefconfig)
  91
  92 # if neither defconfig or menuconfig are requested, use the GENCONFIG rule to
  93 # ensure generated config files are up to date
  94 $(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)
  95         @echo GENCONFIG
  96 ifdef BATCH_BUILD  # can't prompt for new config values like on terminal
  97         $(call RunConf,conf --olddefconfig)
  98 endif
  99         $(call RunConf,conf --silentoldconfig)
 100         touch $(SDKCONFIG_MAKEFILE) $(BUILD_DIR_BASE)/include/sdkconfig.h  # ensure newer than sdkconfig
 101
 102 else  # "$(MAKE_RESTARTS)" != ""
 103 # on subsequent make passes, skip config generation entirely
 104 defconfig:
 105 menuconfig:
 106 endif
 107
 108 .PHONY: config-clean defconfig menuconfig
 109 config-clean:
 110         $(summary) RM CONFIG
 111         MAKEFLAGS="" $(MAKE) -C $(KCONFIG_TOOL_DIR) clean
 112         rm -rf $(BUILD_DIR_BASE)/include/config $(BUILD_DIR_BASE)/include/sdkconfig.h