mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
55 lines
2.5 KiB
Makefile
55 lines
2.5 KiB
Makefile
# Process FEATURES variables
|
|
#
|
|
# The board/board common are responsible for defining the CPU and CPU_MODEL
|
|
# variables in their Makefile.features.
|
|
# This makes them available when setting features based on CPU_MODEL in the cpu
|
|
# Makefile.features and also during dependency resolution.
|
|
|
|
# Transition:
|
|
# Moving 'CPU/CPU_MODEL' to Makefile.features is an ongoing work and may not
|
|
# reflect the state of all boards for the moment.
|
|
|
|
include $(RIOTBOARD)/$(BOARD)/Makefile.features
|
|
|
|
# Transitional conditional include until all boards define 'CPU'
|
|
ifneq (,$(CPU))
|
|
include $(RIOTCPU)/$(CPU)/Makefile.features
|
|
else
|
|
$(warning CPU must be defined by board / board_common Makefile.features)
|
|
endif
|
|
|
|
|
|
# Resolve FEATURES_ variables
|
|
# Their value will only be complete after resolving dependencies
|
|
|
|
# Features that are required by the application but not provided by the BSP and
|
|
# features that are used but blacklisted (prepended with "!").
|
|
# Having features missing may case the build to fail.
|
|
FEATURES_MISSING = $(sort $(filter-out $(FEATURES_PROVIDED),$(FEATURES_REQUIRED)))
|
|
|
|
# Features that are only optional and not required at the same time.
|
|
# The policy is to by default use by features if they are provided by the BSP.
|
|
FEATURES_OPTIONAL_ONLY = $(sort $(filter-out $(FEATURES_REQUIRED),$(FEATURES_OPTIONAL)))
|
|
FEATURES_OPTIONAL_USED = $(sort $(filter $(FEATURES_PROVIDED),$(FEATURES_OPTIONAL_ONLY)))
|
|
# Optional features that will not be used because they are not provided
|
|
FEATURES_OPTIONAL_MISSING = $(sort $(filter-out $(FEATURES_PROVIDED),$(FEATURES_OPTIONAL_ONLY)))
|
|
|
|
# Features that are used for an application
|
|
FEATURES_USED = $(sort $(FEATURES_REQUIRED) $(FEATURES_OPTIONAL_USED))
|
|
|
|
# Used features that conflict when used together
|
|
FEATURES_CONFLICTING = $(sort $(foreach conflict,$(FEATURES_CONFLICT),$(call _features_conflicting,$(conflict))))
|
|
|
|
# Return conflicting features from the conflict string feature1:feature2
|
|
# $1: feature1:feature2
|
|
# Return the list of conflicting features
|
|
_features_conflicting = $(if $(call _features_used_conflicting,$(subst :, ,$1)),$(subst :, ,$1))
|
|
# Check if all features from the list are used
|
|
# $1: list of features that conflict together
|
|
# Return non empty on error
|
|
_features_used_conflicting = $(filter $(words $1),$(words $(filter $(FEATURES_USED),$1)))
|
|
|
|
# Features that are used by the application but blacklisted by the BSP.
|
|
# Having blacklisted features may cause the build to fail.
|
|
FEATURES_USED_BLACKLISTED = $(sort $(filter $(FEATURES_USED), $(FEATURES_BLACKLIST)))
|