Makefile - chromiumos/platform/depthcharge - Git at Google

 ##
 ## This file is part of the depthcharge project.
 ##
 ## Copyright (C) 2008 Advanced Micro Devices, Inc.
 ## Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de>
 ## Copyright 2012 Google LLC
 ##
 ## This program is free software; you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
 ## the Free Software Foundation; version 2 of the License.
 ##
 ## This program is distributed in the hope that it will be useful,
 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 ## GNU General Public License for more details.
 ##

 .SECONDEXPANSION:

 src ?= $(shell pwd)
 export override src := $(abspath $(src))

 obj ?= $(src)/build
 export override obj := $(abspath $(obj))

 KCONFIG_AUTOHEADER := $(obj)/config.h
 KCONFIG_CONFIG_OUT := $(obj)/config
 KCONFIG_FILE := $(src)/Kconfig
 DOTCONFIG ?= .config
 export KCONFIG_CONFIG = $(DOTCONFIG)


 CONFIG_SHELL := sh
 ifdef BOARD
 KBUILD_DEFCONFIG := $(src)/board/$(BOARD)/defconfig
 endif
 UNAME_RELEASE := $(shell uname -r)
 MAKEFLAGS += -rR --no-print-directory

 # Make is silent per default, but 'make V=1' will show all compiler calls.
 ifneq ($(V),1)
 Q:=@
 .SILENT:
 endif

 HOSTCC = gcc
 HOSTCXX = g++
 HOSTAR = ar
 HOSTAS = as
 HOSTCFLAGS :=
 HOSTCXXFLAGS :=
 HOSTARFLAGS :=
 HOSTASFLAGS :=

 UNIT_TEST:=
 ifneq ($(filter %-test %-tests %coverage-report coverage-report%, \
 	$(MAKECMDGOALS)),)
 ifneq ($(filter-out %-test %-tests %screenshot \
 	%coverage-report coverage-report%, \
 	$(MAKECMDGOALS)),)
 $(error Cannot mix unit-tests targets with other targets)
 endif
 UNIT_TEST:=1
 endif

 SCREENSHOT :=
 ifneq ($(filter %screenshot,$(MAKECMDGOALS)),)
 ifneq ($(filter-out %screenshot, $(MAKECMDGOALS)),)
 $(error Cannot mix screenshot targets with other targets)
 endif
 SCREENSHOT := 1
 endif

 MAKE_CONFIG :=
 ifneq ($(filter %config,$(MAKECMDGOALS)),)
 ifneq ($(filter-out %config, $(MAKECMDGOALS)),)
 $(error Cannot mix config targets with other targets)
 endif
 MAKE_CONFIG := 1
 endif

 LIBPAYLOAD_DIR ?= ../libpayload/install/libpayload

 # Run genconfig before including the config
 $(shell [ -d "$(obj)" ] || mkdir -p "$(obj)")

 run_kconfig_tool = KCONFIG_CONFIG="$(KCONFIG_CONFIG)" $(1)

 ifeq ($(UNIT_TEST)$(SCREENSHOT)$(MAKE_CONFIG),)
 _ := $(shell $(call run_kconfig_tool, \
 	genconfig --header-path "$(KCONFIG_AUTOHEADER).unused" \
 	--config-out "$(KCONFIG_CONFIG_OUT)" "$(KCONFIG_FILE)"))
 _ := $(shell $(call run_kconfig_tool, \
 	"$(src)/util/autoheader.py" --header-path "$(KCONFIG_AUTOHEADER)" \
 	"$(KCONFIG_FILE)"))

 include $(KCONFIG_CONFIG_OUT)
 include $(LIBPAYLOAD_DIR)/libpayload.config
 include $(LIBPAYLOAD_DIR)/libpayload.xcompile

 # Function to check architecture configuration and set ARCH and ARCH_DIR variables
 define define_arch
 ifeq ($($(1)),y)
 ifneq ($($(2)),y)
 $$(error $(1) is set but $(2) is not in $(LIBPAYLOAD_DIR))
 endif
 ARCH = $(3)
 ARCH_DIR = $(4)
 endif
 endef

 # Verify configuration for each architecture and select corresponding ARCH
 # and ARCH_DIR variables
 $(eval $(call define_arch,CONFIG_ARCH_X86_32,CONFIG_LP_ARCH_X86_32,x86,x86))
 $(eval $(call define_arch,CONFIG_ARCH_ARM_V7,CONFIG_LP_ARCH_ARM,arm,arm))
 $(eval $(call define_arch,CONFIG_ARCH_ARM_V8,CONFIG_LP_ARCH_ARM64,arm64,arm))
 $(eval $(call define_arch,CONFIG_ARCH_X86_64,CONFIG_LP_ARCH_X86_64,x86_64,x86))

 ifndef ARCH_DIR
 $(error ARCH_DIR is not defined)
 endif

 ARCH_TO_TOOLCHAIN_x86    := i386
 ARCH_TO_TOOLCHAIN_arm    := arm
 ARCH_TO_TOOLCHAIN_arm64  := arm64

 toolchain := $(ARCH_TO_TOOLCHAIN_$(ARCH))

 # libpayload's xcompile adapted the coreboot naming scheme, which is different
 # in some places. If the names above don't work, use another set.
 ifeq ($(CC_$(toolchain)),)
 new_toolchain_name_i386 := x86_32

 toolchain := $(new_toolchain_name_$(toolchain))
 endif

 CC:=$(firstword $(CC_$(toolchain)))
 XCC := CC=$(CC) $(abspath $(LIBPAYLOAD_DIR))/bin/lpgcc
 AS = $(LIBPAYLOAD_DIR)/bin/lpas
 GCOV := $(GCOV_$(toolchain))
 OBJCOPY ?= $(OBJCOPY_$(toolchain))
 STRIP ?= $(STRIP_$(toolchain))

 include $(src)/src/arch/$(ARCH_DIR)/build_vars

 INCLUDES = -I$(obj) -I$(src)/src/ -I$(src)/src/arch/$(ARCH_DIR)/includes/ \
 	-I$(LIBPAYLOAD_DIR)/vboot/firmware/include \
 	-include $(LIBPAYLOAD_DIR)/include/kconfig.h \
 	-include $(KCONFIG_AUTOHEADER)

 ifndef EC_HEADERS
 $(error Set EC_HEADERS to point to the EC headers directory)
 else
 INCLUDES += -I$(EC_HEADERS)
 endif

 ABI_FLAGS := $(ARCH_ABI_FLAGS) -ffreestanding -fno-builtin \
 	-fno-stack-protector -fomit-frame-pointer
 LINK_FLAGS = $(ARCH_LINK_FLAGS) $(ABI_FLAGS) -fuse-ld=bfd \
 	-Wl,-T,$(LDSCRIPT_OBJ) -Wl,--gc-sections -Wl,-Map=$@.map
 CFLAGS := $(ARCH_CFLAGS) -Wall -Werror -Wstrict-prototypes -Wshadow \
 	-Wno-address-of-packed-member \
 	$(INCLUDES) -std=gnu99 $(ABI_FLAGS) -ffunction-sections -fdata-sections -ggdb3

 ifneq ($(SOURCE_DEBUG),)
 CFLAGS += -Og
 else
 CFLAGS += -Os
 endif

 ifeq ($(COV),1)
 CFLAGS += --coverage
 LINK_FLAGS += --coverage

 # Initial zero coverage data
 coverage-init: depthcharge
 	lcov -o $(obj)/init.info -c -d $(obj) \
 		--exclude '$(src)/tests/*' --include '$(src)/src/*' \
 		-b $(src) --gcov-tool $(GCOV) -i
 endif

 endif # ifeq ($(UNIT_TEST)$(SCREENSHOT)$(MAKE_CONFIG),)

 all:
 	@echo  'You must specify one of the following targets to build:'
 	@echo
 	@echo  '  depthcharge		- Build default binary'
 	@echo  '  netboot		- Build netboot binary'
 	@echo  '  fastboot		- Build fastboot binary'
 	@echo  '  dev			- Build developer binary'
 	@echo
 	@echo  '  clean			- Delete final output binaries'
 	@echo  '  distclean		- Delete whole build directory'

 strip_quotes = $(subst ",,$(subst \",,$(1)))

 # Add a new class of source/object files to the build system
 add-class= \
 	$(eval $(1)-srcs:=) \
 	$(eval $(1)-objs:=) \
 	$(eval classes+=$(1))

 # Special classes are managed types with special behaviour
 # On parse time, for each entry in variable $(1)-y
 # a handler $(1)-handler is executed with the arguments:
 # * $(1): directory the parser is in
 # * $(2): current entry
 add-special-class= \
 	$(eval $(1):=) \
 	$(eval special-classes+=$(1))

 # Clean -y variables, include Makefile.inc
 # Add paths to files in X-y to X-srcs
 # Add subdirs-y to subdirs
 includemakefiles= \
 	$(foreach class,classes subdirs $(classes) $(special-classes), $(eval $(class)-y:=)) \
 	$(eval -include $(1)) \
 	$(foreach class,$(classes-y), $(call add-class,$(class))) \
 	$(foreach class,$(classes), \
 		$(eval $(class)-srcs+= \
 			$$(subst $(src)/,, \
 			$$(abspath $$(subst $(dir $(1))/,/,$$(addprefix $(dir $(1)),$$($(class)-y))))))) \
 	$(foreach special,$(special-classes), \
 		$(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
 	$(eval subdirs+=$$(subst $(CURDIR)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))

 # For each path in $(subdirs) call includemakefiles
 # Repeat until subdirs is empty
 evaluate_subdirs= \
 	$(eval cursubdirs:=$(subdirs)) \
 	$(eval subdirs:=) \
 	$(foreach dir,$(cursubdirs), \
 		$(eval $(call includemakefiles,$(dir)/Makefile.inc))) \
 	$(if $(subdirs),$(eval $(call evaluate_subdirs)))

 # collect all object files eligible for building
 subdirs:=$(src)

 ifneq ($(UNIT_TEST),)
 include tests/Makefile.inc
 else ifneq ($(SCREENSHOT),)
 include screenshot/Makefile.inc
 else
 $(eval $(call evaluate_subdirs))
 endif

 # Eliminate duplicate mentions of source files in a class
 $(foreach class,$(classes),$(eval $(class)-srcs:=$(sort $($(class)-srcs))))

 src-to-obj=$(addsuffix .$(1).o, $(basename $(patsubst src/%, $(obj)/%, $($(1)-srcs))))
 $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class))))

 allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var)))
 allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
 alldirs:=$(sort $(abspath $(dir $(allobjs))))

 printall:
 	@$(foreach class,$(classes),echo $(class)-objs:=$($(class)-objs); )
 	@echo alldirs:=$(alldirs)
 	@echo allsrcs=$(allsrcs)
 	@echo DEPENDENCIES=$(DEPENDENCIES)
 	@echo LIBGCC_FILE_NAME=$(LIBGCC_FILE_NAME)
 	@$(foreach class,$(special-classes),echo $(class):='$($(class))'; )

 ifndef NOMKDIR
 ifneq ($(alldirs),)
 $(shell mkdir -p $(alldirs))
 endif
 endif

 # macro to define template macros that are used by use_template macro
 define create_cc_template
 # $1 obj class
 # $2 source suffix (c, S)
 # $3 additional compiler flags
 # $4 additional dependencies
 ifn$(EMPTY)def $(1)-objs_$(2)_template
 de$(EMPTY)fine $(1)-objs_$(2)_template
 $(obj)/$$(1).$(1).o: src/$$(1).$(2) $(KCONFIG_AUTOHEADER) $(4)
 	@printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
 	$(Q)$(XCC) $(3) -MMD $$$$(CFLAGS) -c -o $$$$@ $$$$<
 en$(EMPTY)def
 end$(EMPTY)if
 endef

 filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs))))
 $(foreach class,$(classes), \
 	$(foreach type,$(call filetypes-of-class,$(class)), \
 		$(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps)))))

 foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(patsubst src/%,%,$(basename $(file))))))
 $(eval $(foreach class,$(classes),$(call foreach-src,$(class))))

 DEPENDENCIES = $(allobjs:.o=.d)
 -include $(DEPENDENCIES)

 configuration_uis := menuconfig guiconfig
 PHONY += $(configuration_uis)
 $(configuration_uis):
 	$(Q)$(call run_kconfig_tool, $@ "$(KCONFIG_FILE)")

 PHONY += defconfig
 defconfig:
 	$(Q)$(call run_kconfig_tool, defconfig --kconfig "$(KCONFIG_FILE)" \
 		"$(KBUILD_DEFCONFIG)")

 clean:
 	$(Q)rm -rf $(obj)/*.elf $(obj)/*.o

 distclean: clean
 	$(Q)rm -rf $(obj)
 	$(Q)rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig*

 .PHONY: $(PHONY) clean distclean
	##
	## This file is part of the depthcharge project.
	##
	## Copyright (C) 2008 Advanced Micro Devices, Inc.
	## Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de>
	## Copyright 2012 Google LLC
	##
	## This program is free software; you can redistribute it and/or modify
	## it under the terms of the GNU General Public License as published by
	## the Free Software Foundation; version 2 of the License.
	##
	## This program is distributed in the hope that it will be useful,
	## but WITHOUT ANY WARRANTY; without even the implied warranty of
	## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	## GNU General Public License for more details.
	##

	.SECONDEXPANSION:

	src ?= $(shell pwd)
	export override src := $(abspath $(src))

	obj ?= $(src)/build
	export override obj := $(abspath $(obj))

	KCONFIG_AUTOHEADER := $(obj)/config.h
	KCONFIG_CONFIG_OUT := $(obj)/config
	KCONFIG_FILE := $(src)/Kconfig
	DOTCONFIG ?= .config
	export KCONFIG_CONFIG = $(DOTCONFIG)


	CONFIG_SHELL := sh
	ifdef BOARD
	KBUILD_DEFCONFIG := $(src)/board/$(BOARD)/defconfig
	endif
	UNAME_RELEASE := $(shell uname -r)
	MAKEFLAGS += -rR --no-print-directory

	# Make is silent per default, but 'make V=1' will show all compiler calls.
	ifneq ($(V),1)
	Q:=@
	.SILENT:
	endif

	HOSTCC = gcc
	HOSTCXX = g++
	HOSTAR = ar
	HOSTAS = as
	HOSTCFLAGS :=
	HOSTCXXFLAGS :=
	HOSTARFLAGS :=
	HOSTASFLAGS :=

	UNIT_TEST:=
	ifneq ($(filter %-test %-tests %coverage-report coverage-report%, \
	$(MAKECMDGOALS)),)
	ifneq ($(filter-out %-test %-tests %screenshot \
	%coverage-report coverage-report%, \
	$(MAKECMDGOALS)),)
	$(error Cannot mix unit-tests targets with other targets)
	endif
	UNIT_TEST:=1
	endif

	SCREENSHOT :=
	ifneq ($(filter %screenshot,$(MAKECMDGOALS)),)
	ifneq ($(filter-out %screenshot, $(MAKECMDGOALS)),)
	$(error Cannot mix screenshot targets with other targets)
	endif
	SCREENSHOT := 1
	endif

	MAKE_CONFIG :=
	ifneq ($(filter %config,$(MAKECMDGOALS)),)
	ifneq ($(filter-out %config, $(MAKECMDGOALS)),)
	$(error Cannot mix config targets with other targets)
	endif
	MAKE_CONFIG := 1
	endif

	LIBPAYLOAD_DIR ?= ../libpayload/install/libpayload

	# Run genconfig before including the config
	$(shell [ -d "$(obj)" ] \|\| mkdir -p "$(obj)")

	run_kconfig_tool = KCONFIG_CONFIG="$(KCONFIG_CONFIG)" $(1)

	ifeq ($(UNIT_TEST)$(SCREENSHOT)$(MAKE_CONFIG),)
	_ := $(shell $(call run_kconfig_tool, \
	genconfig --header-path "$(KCONFIG_AUTOHEADER).unused" \
	--config-out "$(KCONFIG_CONFIG_OUT)" "$(KCONFIG_FILE)"))
	_ := $(shell $(call run_kconfig_tool, \
	"$(src)/util/autoheader.py" --header-path "$(KCONFIG_AUTOHEADER)" \
	"$(KCONFIG_FILE)"))

	include $(KCONFIG_CONFIG_OUT)
	include $(LIBPAYLOAD_DIR)/libpayload.config
	include $(LIBPAYLOAD_DIR)/libpayload.xcompile

	# Function to check architecture configuration and set ARCH and ARCH_DIR variables
	define define_arch
	ifeq ($($(1)),y)
	ifneq ($($(2)),y)
	$$(error $(1) is set but $(2) is not in $(LIBPAYLOAD_DIR))
	endif
	ARCH = $(3)
	ARCH_DIR = $(4)
	endif
	endef

	# Verify configuration for each architecture and select corresponding ARCH
	# and ARCH_DIR variables
	$(eval $(call define_arch,CONFIG_ARCH_X86_32,CONFIG_LP_ARCH_X86_32,x86,x86))
	$(eval $(call define_arch,CONFIG_ARCH_ARM_V7,CONFIG_LP_ARCH_ARM,arm,arm))
	$(eval $(call define_arch,CONFIG_ARCH_ARM_V8,CONFIG_LP_ARCH_ARM64,arm64,arm))
	$(eval $(call define_arch,CONFIG_ARCH_X86_64,CONFIG_LP_ARCH_X86_64,x86_64,x86))

	ifndef ARCH_DIR
	$(error ARCH_DIR is not defined)
	endif

	ARCH_TO_TOOLCHAIN_x86 := i386
	ARCH_TO_TOOLCHAIN_arm := arm
	ARCH_TO_TOOLCHAIN_arm64 := arm64

	toolchain := $(ARCH_TO_TOOLCHAIN_$(ARCH))

	# libpayload's xcompile adapted the coreboot naming scheme, which is different
	# in some places. If the names above don't work, use another set.
	ifeq ($(CC_$(toolchain)),)
	new_toolchain_name_i386 := x86_32

	toolchain := $(new_toolchain_name_$(toolchain))
	endif

	CC:=$(firstword $(CC_$(toolchain)))
	XCC := CC=$(CC) $(abspath $(LIBPAYLOAD_DIR))/bin/lpgcc
	AS = $(LIBPAYLOAD_DIR)/bin/lpas
	GCOV := $(GCOV_$(toolchain))
	OBJCOPY ?= $(OBJCOPY_$(toolchain))
	STRIP ?= $(STRIP_$(toolchain))

	include $(src)/src/arch/$(ARCH_DIR)/build_vars

	INCLUDES = -I$(obj) -I$(src)/src/ -I$(src)/src/arch/$(ARCH_DIR)/includes/ \
	-I$(LIBPAYLOAD_DIR)/vboot/firmware/include \
	-include $(LIBPAYLOAD_DIR)/include/kconfig.h \
	-include $(KCONFIG_AUTOHEADER)

	ifndef EC_HEADERS
	$(error Set EC_HEADERS to point to the EC headers directory)
	else
	INCLUDES += -I$(EC_HEADERS)
	endif

	ABI_FLAGS := $(ARCH_ABI_FLAGS) -ffreestanding -fno-builtin \
	-fno-stack-protector -fomit-frame-pointer
	LINK_FLAGS = $(ARCH_LINK_FLAGS) $(ABI_FLAGS) -fuse-ld=bfd \
	-Wl,-T,$(LDSCRIPT_OBJ) -Wl,--gc-sections -Wl,-Map=$@.map
	CFLAGS := $(ARCH_CFLAGS) -Wall -Werror -Wstrict-prototypes -Wshadow \
	-Wno-address-of-packed-member \
	$(INCLUDES) -std=gnu99 $(ABI_FLAGS) -ffunction-sections -fdata-sections -ggdb3

	ifneq ($(SOURCE_DEBUG),)
	CFLAGS += -Og
	else
	CFLAGS += -Os
	endif

	ifeq ($(COV),1)
	CFLAGS += --coverage
	LINK_FLAGS += --coverage

	# Initial zero coverage data
	coverage-init: depthcharge
	lcov -o $(obj)/init.info -c -d $(obj) \
	--exclude '$(src)/tests/' --include '$(src)/src/' \
	-b $(src) --gcov-tool $(GCOV) -i
	endif

	endif # ifeq ($(UNIT_TEST)$(SCREENSHOT)$(MAKE_CONFIG),)

	all:
	@echo 'You must specify one of the following targets to build:'
	@echo
	@echo ' depthcharge - Build default binary'
	@echo ' netboot - Build netboot binary'
	@echo ' fastboot - Build fastboot binary'
	@echo ' dev - Build developer binary'
	@echo
	@echo ' clean - Delete final output binaries'
	@echo ' distclean - Delete whole build directory'

	strip_quotes = $(subst ",,$(subst \",,$(1)))

	# Add a new class of source/object files to the build system
	add-class= \
	$(eval $(1)-srcs:=) \
	$(eval $(1)-objs:=) \
	$(eval classes+=$(1))

	# Special classes are managed types with special behaviour
	# On parse time, for each entry in variable $(1)-y
	# a handler $(1)-handler is executed with the arguments:
	# * $(1): directory the parser is in
	# * $(2): current entry
	add-special-class= \
	$(eval $(1):=) \
	$(eval special-classes+=$(1))

	# Clean -y variables, include Makefile.inc
	# Add paths to files in X-y to X-srcs
	# Add subdirs-y to subdirs
	includemakefiles= \
	$(foreach class,classes subdirs $(classes) $(special-classes), $(eval $(class)-y:=)) \
	$(eval -include $(1)) \
	$(foreach class,$(classes-y), $(call add-class,$(class))) \
	$(foreach class,$(classes), \
	$(eval $(class)-srcs+= \
	$$(subst $(src)/,, \
	$$(abspath $$(subst $(dir $(1))/,/,$$(addprefix $(dir $(1)),$$($(class)-y))))))) \
	$(foreach special,$(special-classes), \
	$(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
	$(eval subdirs+=$$(subst $(CURDIR)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))

	# For each path in $(subdirs) call includemakefiles
	# Repeat until subdirs is empty
	evaluate_subdirs= \
	$(eval cursubdirs:=$(subdirs)) \
	$(eval subdirs:=) \
	$(foreach dir,$(cursubdirs), \
	$(eval $(call includemakefiles,$(dir)/Makefile.inc))) \
	$(if $(subdirs),$(eval $(call evaluate_subdirs)))

	# collect all object files eligible for building
	subdirs:=$(src)

	ifneq ($(UNIT_TEST),)
	include tests/Makefile.inc
	else ifneq ($(SCREENSHOT),)
	include screenshot/Makefile.inc
	else
	$(eval $(call evaluate_subdirs))
	endif

	# Eliminate duplicate mentions of source files in a class
	$(foreach class,$(classes),$(eval $(class)-srcs:=$(sort $($(class)-srcs))))

	src-to-obj=$(addsuffix .$(1).o, $(basename $(patsubst src/%, $(obj)/%, $($(1)-srcs))))
	$(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class))))

	allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var)))
	allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
	alldirs:=$(sort $(abspath $(dir $(allobjs))))

	printall:
	@$(foreach class,$(classes),echo $(class)-objs:=$($(class)-objs); )
	@echo alldirs:=$(alldirs)
	@echo allsrcs=$(allsrcs)
	@echo DEPENDENCIES=$(DEPENDENCIES)
	@echo LIBGCC_FILE_NAME=$(LIBGCC_FILE_NAME)
	@$(foreach class,$(special-classes),echo $(class):='$($(class))'; )

	ifndef NOMKDIR
	ifneq ($(alldirs),)
	$(shell mkdir -p $(alldirs))
	endif
	endif

	# macro to define template macros that are used by use_template macro
	define create_cc_template
	# $1 obj class
	# $2 source suffix (c, S)
	# $3 additional compiler flags
	# $4 additional dependencies
	ifn$(EMPTY)def $(1)-objs_$(2)_template
	de$(EMPTY)fine $(1)-objs_$(2)_template
	$(obj)/$$(1).$(1).o: src/$$(1).$(2) $(KCONFIG_AUTOHEADER) $(4)
	@printf " CC $$$$(subst $$$$(obj)/,,$$$$(@))\n"
	$(Q)$(XCC) $(3) -MMD $$$$(CFLAGS) -c -o $$$$@ $$$$<
	en$(EMPTY)def
	end$(EMPTY)if
	endef

	filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs))))
	$(foreach class,$(classes), \
	$(foreach type,$(call filetypes-of-class,$(class)), \
	$(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps)))))

	foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(patsubst src/%,%,$(basename $(file))))))
	$(eval $(foreach class,$(classes),$(call foreach-src,$(class))))

	DEPENDENCIES = $(allobjs:.o=.d)
	-include $(DEPENDENCIES)

	configuration_uis := menuconfig guiconfig
	PHONY += $(configuration_uis)
	$(configuration_uis):
	$(Q)$(call run_kconfig_tool, $@ "$(KCONFIG_FILE)")

	PHONY += defconfig
	defconfig:
	$(Q)$(call run_kconfig_tool, defconfig --kconfig "$(KCONFIG_FILE)" \
	"$(KBUILD_DEFCONFIG)")

	clean:
	$(Q)rm -rf $(obj)/.elf $(obj)/.o

	distclean: clean
	$(Q)rm -rf $(obj)
	$(Q)rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig*

	.PHONY: $(PHONY) clean distclean