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# Child makefile fragment
#
# Inputs (reset on exit)
#
# DIR_SOURCES List of source files in this directory
# DIR_TEST_ITEMS List of test items in this directory
# DIR_INSTALL_ITEMS Items to install in form <destination>:<file1>;<file2>
#
# Toolchain is provided by top-level makefile
#
# Variables provided by top-level makefile
#
# BUILDDIR The location of the build tree root
# COMPONENT The name of the component
# CURDIR The location of the source tree root
# EXPORTDIR The location of the export directory
# WANT_TEST Whether to build testcases
#
# do_include Canned command sequence to include a child makefile
#
# Variables provided by parent makefile:
#
# DIR The name of the directory we're in, relative to CURDIR
#
# Variables we can manipulate:
#
# CLEAN_ITEMS The list of items to remove for "make clean"
# DISTCLEAN_ITEMS The list of items to remove for "make distclean"
# TEST_ITEMS The list of items to build for "make test"
# TEST_TARGETS The list of target names to run for "make test"
# INSTALL_ITEMS The list of items to (un)install
#
# SOURCES The list of sources to build for $(COMPONENT)
#
# Plus anything from the toolchain
# Push parent directory onto the directory stack
sp := $(sp).x
dirstack_$(sp) := $(d)
d := $(DIR)
# Sources
SRCS_$(d) := $(DIR_SOURCES)
TEST_ITEMS_$(d) :=
INSTALL_ITEMS_$(d) :=
# Append to sources for component
SOURCES := $(SOURCES) $(addprefix $(d), $(SRCS_$(d)))
# Test sources
ifeq ($(WANT_TEST),yes)
ifneq ($(DIR_TEST_ITEMS),)
# Extract the binary name from the ITEM
binary = $(subst /,_,$(addprefix $(d),$(firstword $(subst :, ,$(ITEM)))))
# Extract the list of sources from the ITEM
sources = $(subst ;, ,$(lastword $(subst :, ,$(ITEM))))
# We can't simply use the output of foreach here,
# as it space separates its output, which kinda defeats the point.
define append_test_src
TEST_ITEMS_$(d) := $$(TEST_ITEMS_$(d))$1;
endef
define append_test
TEST_ITEMS_$(d) := $$(TEST_ITEMS_$(d)) $1:
$$(eval $$(foreach TSRC,$2, \
$$(call append_test_src,$$(addprefix $$(d),$$(TSRC)))))
endef
# Append test items, prepending $(d) to each source file
$(eval $(foreach ITEM,$(DIR_TEST_ITEMS), \
$(call append_test,$(binary),$(sources))))
TEST_ITEMS := $(TEST_ITEMS) $(TEST_ITEMS_$(d))
TEST_TARGETS := $(TEST_TARGETS) test_$(d)
# Extract the binary name from the TEST
binary_name = $(firstword $(subst :, ,$(TEST)))
# Target for tests in this directory
test_$(d): $(d) $(addprefix $(BUILDDIR)/, \
$(foreach TEST,$(TEST_ITEMS_$(d)),$(binary_name)))
$(Q)$(SHAREDLDPATH) $(TESTRUNNER) $(BUILDDIR) \
$(CURDIR)/$< $(subst /,_,$<) $(EXEEXT)
endif
endif
# Install items
ifneq ($(DIR_INSTALL_ITEMS),)
# Extract the destination directory from the variable
dest_dir = $(firstword $(subst :, ,$(ITEM)))
# Extract the list of files to install
files = $(subst ;, ,$(lastword $(subst :, ,$(ITEM))))
define append_install_file
INSTALL_ITEMS_$(d) := $$(INSTALL_ITEMS_$(d))$1;
endef
define append_install_item
INSTALL_ITEMS_$(d) := $$(INSTALL_ITEMS_$(d)) $1:
$$(eval $$(foreach FILE,$2, \
$$(call append_install_file,$$(addprefix $$(d),$$(FILE)))))
endef
# Append items to install (along with install location), prepending $(d)
# to each item in the file list
$(eval $(foreach ITEM,$(DIR_INSTALL_ITEMS), \
$(call append_install_item,$(dest_dir),$(files))))
INSTALL_ITEMS := $(INSTALL_ITEMS) $(INSTALL_ITEMS_$(d))
endif
# Reset the inputs
DIR_SOURCES :=
DIR_TEST_ITEMS :=
DIR_INSTALL_ITEMS :=
# Now include any children we may have
MAKE_INCLUDES := $(wildcard $(d)*/Makefile)
$(eval $(foreach INC, $(MAKE_INCLUDES), $(call do_include,$(INC))))
# Pop off the directory stack
d := $(dirstack_$(sp))
sp := $(basename $(sp))
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