1 # Functionality common to both top-level project makefile (project.mk)
2 # and component makefiles (component_wrapper.mk)
5 # Include project config makefile, if it exists.
7 # (Note that we only rebuild this makefile automatically for some
8 # targets, see project_config.mk for details.)
9 SDKCONFIG_MAKEFILE ?= $(abspath $(BUILD_DIR_BASE)/include/config/auto.conf)
10 -include $(SDKCONFIG_MAKEFILE)
11 export SDKCONFIG_MAKEFILE # sub-makes (like bootloader) will reuse this path
13 # BATCH_BUILD flag disables interactive terminal features, defaults to verbose build
18 #Handling of V=1/VERBOSE=1 flag
20 # if V=1, $(summary) does nothing and $(details) will echo extra details
21 # if V is unset or not 1, $(summary) echoes a summary and $(details) does nothing
31 # disable echoing of commands, directory names
35 ifdef CONFIG_MAKE_WARN_UNDEFINED_VARIABLES
36 MAKEFLAGS += --warn-undefined-variables
39 # General make utilities
41 # convenience variable for printing an 80 asterisk wide separator line
42 SEPARATOR:="*******************************************************************************"
44 # macro to remove quotes from an argument, ie $(call dequote,$(CONFIG_BLAH))
48 # " comment kept here to keep syntax highlighting happy
51 # macro to keep an absolute path as-is, but resolve a relative path
52 # against a particular parent directory
54 # $(1) path to resolve
55 # $(2) directory to resolve non-absolute path against
57 # Path and directory don't have to exist (definition of a "relative
58 # path" is one that doesn't start with /)
60 # $(2) can contain a trailing forward slash or not, result will not
61 # double any path slashes.
63 # example $(call resolvepath,$(CONFIG_PATH),$(CONFIG_DIR))
65 $(abspath $(foreach dir,$(1),$(if $(filter /%,$(dir)),$(dir),$(subst //,/,$(2)/$(dir)))))
69 # macro to include a target only if it's on the list of targets that make
72 # This allows you to have something like an "order-only phony prerequisite",
73 # ie a prerequisite that determines an order phony targets have to run in.
75 # Because normal order-only prerequisites don't work with phony targets.
77 # example $(call prereq_if_explicit,erase_flash)
78 define prereq_if_explicit
79 $(filter $(1),$(MAKECMDGOALS))
82 # macro to kill duplicate items in a list without messing up the sort order of the list.
83 # Will only keep the unique items; if there are non-unique items in the list, it will remove
84 # the later recurring ones so only the first one remains.
85 # Copied from http://stackoverflow.com/questions/16144115/makefile-remove-duplicate-words-without-sorting
87 $(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1)))
90 # macro to strip leading ../s from a path
91 # Given $(1) which is a directory, remove any leading ../s from it
92 # (recursively keeps removing ../ until not found)
93 # if the path contains nothing but ../.., a single . is returned (cwd)
94 define stripLeadingParentDirs
95 $(foreach path,$(1),$(if $(subst ..,,$(path)),$(if $(filter ../%,$(path)),$(call stripLeadingParentDirs,$(patsubst ../%,%,$(path))),$(path)),.))