mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
4fbbb94bff
Kconfig.dep depends on FORCE, so it is always generated when compiling with Kconfig under normal conditions. Whan TEST_KCONFIG=1 is set, this file is no longer a dependency for out.config. So when cleaning the 'bin' directory, out.config has no direct dependencies that force its rebuilding (the generated directory is order only). This causes the file not to be produced when calling `TEST_KCONFIG=1 make clean all`. This PR changes the dependency on the 'generated' directory to a direct dependency when `CLEAN` is set and leaves it as order-only when not. This allows to generate out.config only when needed by not depending on FORCE.
172 lines
6.9 KiB
Makefile
172 lines
6.9 KiB
Makefile
# This is the root Kconfig
|
|
KCONFIG ?= $(RIOTBASE)/Kconfig
|
|
|
|
# Include tools targets
|
|
include $(RIOTMAKE)/tools/kconfiglib.inc.mk
|
|
|
|
# Include fixdep tool
|
|
include $(RIOTMAKE)/tools/fixdep.inc.mk
|
|
|
|
# Generated dir will contain Kconfig generated configurations
|
|
GENERATED_DIR = $(BINDIR)/generated
|
|
|
|
# The sync dir will contain a tree of header files that represent Kconfig symbols
|
|
export KCONFIG_SYNC_DIR = $(GENERATED_DIR)/deps
|
|
|
|
# This file will contain all generated configuration from kconfig
|
|
export KCONFIG_GENERATED_AUTOCONF_HEADER_C = $(GENERATED_DIR)/autoconf.h
|
|
|
|
# Header for the generated header file
|
|
define KCONFIG_AUTOHEADER_HEADER
|
|
$(if $(filter MINGW% CYGWIN% MSYS%,$(OS)),/)/* RIOT Configuration File */
|
|
|
|
endef
|
|
export KCONFIG_AUTOHEADER_HEADER
|
|
|
|
# This file will contain the calculated dependencies formated in Kconfig
|
|
export KCONFIG_GENERATED_DEPENDENCIES = $(GENERATED_DIR)/Kconfig.dep
|
|
|
|
# This file will contain application default configurations
|
|
KCONFIG_APP_CONFIG = $(APPDIR)/app.config
|
|
|
|
# Default and user overwritten configurations
|
|
KCONFIG_USER_CONFIG = $(APPDIR)/user.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.
|
|
KCONFIG_OUT_CONFIG = $(GENERATED_DIR)/out.config
|
|
|
|
# This file is generated by the GENCONFIG tool. It is similar to the .d
|
|
# files generated by GCC, and the idea is the same. We want to re-trigger the
|
|
# generation of KCONFIG_OUT_CONFIG and KCONFIG_GENERATED_AUTOCONF_HEADER_C
|
|
# whenever a change occurs on one of the previously used Kconfig files.
|
|
KCONFIG_OUT_DEP = $(KCONFIG_OUT_CONFIG).d
|
|
|
|
# Include configuration symbols if available. This allows to check for Kconfig
|
|
# symbols in makefiles. Make tries to 'remake' all included files (see
|
|
# https://www.gnu.org/software/make/manual/html_node/Remaking-Makefiles.html).
|
|
-include $(KCONFIG_OUT_CONFIG)
|
|
|
|
# Add configurations to merge, in ascendent priority (i.e. a file overrides the
|
|
# previous ones).
|
|
ifeq (1, $(TEST_KCONFIG))
|
|
# KCONFIG_ADD_CONFIG holds a list of .config files that are merged for the
|
|
# initial configuration. This allows to split configurations in common files
|
|
# and share them among boards or cpus.
|
|
MERGE_SOURCES += $(KCONFIG_ADD_CONFIG)
|
|
endif
|
|
|
|
MERGE_SOURCES += $(wildcard $(KCONFIG_APP_CONFIG))
|
|
MERGE_SOURCES += $(wildcard $(KCONFIG_USER_CONFIG))
|
|
|
|
# Create directory to place generated files
|
|
$(GENERATED_DIR): $(if $(MAKE_RESTARTS),,$(CLEAN))
|
|
$(Q)mkdir -p $@
|
|
|
|
# During migration this checks if Kconfig should run. It will run if any of
|
|
# the following is true:
|
|
# - A file with '.config' extension is present in the application directory
|
|
# - A 'Kconfig' file is present in the application directory
|
|
# - A previous configuration file is present (e.g. from a previous call to
|
|
# menuconfig)
|
|
# - menuconfig is being called
|
|
#
|
|
# NOTE: This assumes that Kconfig will not generate any default configurations
|
|
# just from the Kconfig files outside the application folder (i.e. module
|
|
# configuration via Kconfig is disabled by default). Should this change, the
|
|
# check would not longer be valid, and Kconfig would have to run on every
|
|
# build.
|
|
SHOULD_RUN_KCONFIG ?= $(or $(wildcard $(APPDIR)/*.config), \
|
|
$(wildcard $(APPDIR)/Kconfig), \
|
|
$(if $(CLEAN),,$(wildcard $(KCONFIG_OUT_CONFIG))), \
|
|
$(filter menuconfig, $(MAKECMDGOALS)))
|
|
|
|
# export variable to make it visible in other Makefiles
|
|
export SHOULD_RUN_KCONFIG
|
|
|
|
ifneq (,$(SHOULD_RUN_KCONFIG))
|
|
|
|
# Add configuration header to build dependencies
|
|
BUILDDEPS += $(KCONFIG_GENERATED_AUTOCONF_HEADER_C) $(FIXDEP)
|
|
|
|
# Include configuration header when building
|
|
CFLAGS += -imacros '$(KCONFIG_GENERATED_AUTOCONF_HEADER_C)'
|
|
|
|
USEMODULE_W_PREFIX = $(addprefix USEMODULE_,$(USEMODULE))
|
|
USEPKG_W_PREFIX = $(addprefix USEPKG_,$(USEPKG))
|
|
|
|
.PHONY: menuconfig
|
|
|
|
# Opens the menuconfig interface for configuration of modules using the Kconfig
|
|
# system. It will try to update the autoconf.h, which will update if needed
|
|
# (i.e. out.config changed).
|
|
menuconfig: $(MENUCONFIG) $(KCONFIG_OUT_CONFIG)
|
|
$(Q)KCONFIG_CONFIG=$(KCONFIG_OUT_CONFIG) $(MENUCONFIG) $(KCONFIG)
|
|
$(MAKE) $(KCONFIG_GENERATED_AUTOCONF_HEADER_C)
|
|
|
|
# Variable used to conditionally depend on KCONFIG_GENERATED_DEPDENDENCIES
|
|
# When testing Kconfig module modelling this file is not needed
|
|
ifneq (1, $(TEST_KCONFIG))
|
|
GENERATED_DEPENDENCIES_DEP = $(KCONFIG_GENERATED_DEPENDENCIES)
|
|
endif
|
|
|
|
# These rules are not included when only calling `make clean` in
|
|
# order to keep the $(BINDIR) directory clean.
|
|
ifneq (clean, $(MAKECMDGOALS))
|
|
|
|
# Build a Kconfig file defining all used modules and packages. This is done by
|
|
# defining symbols like 'USEMODULE_<MODULE_NAME>' or USEPKG_<PACKAGE_NAME> which
|
|
# default to 'y'. Then, every module and package Kconfig menu will depend on
|
|
# that symbol being set to show its options.
|
|
# Do nothing when testing Kconfig module dependency modelling.
|
|
$(KCONFIG_GENERATED_DEPENDENCIES): FORCE | $(GENERATED_DIR)
|
|
$(Q)printf "%s " $(USEMODULE_W_PREFIX) $(USEPKG_W_PREFIX) \
|
|
| awk 'BEGIN {RS=" "}{ gsub("-", "_", $$0); \
|
|
printf "config %s\n\tbool\n\tdefault y\n", toupper($$0)}' \
|
|
| $(LAZYSPONGE) $(LAZYSPONGE_FLAGS) $@
|
|
|
|
# When the 'clean' target is called, the files inside GENERATED_DIR should be
|
|
# regenerated. For that, we conditionally change GENERATED_DIR from an 'order
|
|
# only' requisite to a normal one.
|
|
#
|
|
# - When clean is called, Make will look at the modification time of the folder
|
|
# and will regenerate the files accordingly.
|
|
# - When clean is not called Make will ensure that the folder exists, without
|
|
# paying attention to the modification date.
|
|
#
|
|
# This allows use to generate the files only when needed, instead of using
|
|
# FORCE.
|
|
GENERATED_DIR_DEP := $(if $(CLEAN),,|) $(GENERATED_DIR)
|
|
|
|
# Generates a .config file by merging multiple sources specified in
|
|
# MERGE_SOURCES. This will also generate KCONFIG_OUT_DEP with the list of used
|
|
# Kconfig files.
|
|
$(KCONFIG_OUT_CONFIG): $(GENERATED_DEPENDENCIES_DEP) $(GENCONFIG) $(MERGE_SOURCES) $(GENERATED_DIR_DEP)
|
|
$(Q) $(GENCONFIG) \
|
|
--config-out=$(KCONFIG_OUT_CONFIG) \
|
|
--file-list $(KCONFIG_OUT_DEP) \
|
|
--kconfig-filename $(KCONFIG) \
|
|
--config-sources $(MERGE_SOURCES) && \
|
|
touch $(KCONFIG_OUT_CONFIG)
|
|
|
|
endif # eq (clean, $(MAKECMDGOALS))
|
|
|
|
# Generates the configuration header file which holds the same information
|
|
# as KCONFIG_OUT_CONFIG, and is used to inject the configurations during
|
|
# compilation.
|
|
#
|
|
# This will generate the 'dummy' header files needed for incremental builds.
|
|
$(KCONFIG_GENERATED_AUTOCONF_HEADER_C): $(KCONFIG_OUT_CONFIG) $(GENERATED_DIR_DEP)
|
|
$(Q) $(GENCONFIG) \
|
|
--header-path $(KCONFIG_GENERATED_AUTOCONF_HEADER_C) \
|
|
--sync-deps $(KCONFIG_SYNC_DIR) \
|
|
--kconfig-filename $(KCONFIG) \
|
|
--config-sources $(KCONFIG_OUT_CONFIG) && \
|
|
touch $(KCONFIG_GENERATED_AUTOCONF_HEADER_C)
|
|
|
|
# Try to load the list of Kconfig files used
|
|
-include $(KCONFIG_OUT_DEP)
|
|
|
|
endif
|