make/project_config.mk

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