Makefile - mirrors/cros/chromiumos/third_party/coreboot - Git at Google

 ## SPDX-License-Identifier: BSD-3-Clause

 ifneq ($(words $(CURDIR)),1)
     $(error Error: Path to the main directory cannot contain spaces)
 endif
 top := $(CURDIR)
 src := src
 srck := $(top)/util/kconfig
 obj ?= build
 override obj := $(subst $(top)/,,$(abspath $(obj)))
 xcompile ?= $(obj)/xcompile
 objutil ?= $(obj)/util
 objk := $(objutil)/kconfig
 absobj := $(abspath $(obj))

 additional-dirs :=

 VBOOT_HOST_BUILD ?= $(abspath $(objutil)/vboot_lib)

 COREBOOT_EXPORTS := COREBOOT_EXPORTS
 COREBOOT_EXPORTS += top src srck obj objutil objk

 # reproducible builds
 LANG:=C
 LC_ALL:=C
 TZ:=UTC0
 ifneq ($(NOCOMPILE),1)
 SOURCE_DATE_EPOCH := $(shell $(top)/util/genbuild_h/genbuild_h.sh . | sed -n 's/^.define COREBOOT_BUILD_EPOCH\>.*"\(.*\)".*/\1/p')
 endif
 # don't use COREBOOT_EXPORTS to ensure build steps outside the coreboot build system
 # are reproducible
 export LANG LC_ALL TZ SOURCE_DATE_EPOCH

 DOTCONFIG ?= $(top)/.config
 KCONFIG_CONFIG = $(DOTCONFIG)
 KCONFIG_AUTOADS := $(obj)/cb-config.ads
 KCONFIG_AUTOHEADER := $(obj)/config.h
 KCONFIG_AUTOCONFIG := $(obj)/auto.conf
 KCONFIG_DEPENDENCIES := $(obj)/auto.conf.cmd
 KCONFIG_SPLITCONFIG := $(obj)/config/
 KCONFIG_TRISTATE := $(obj)/tristate.conf
 KCONFIG_NEGATIVES := 1
 KCONFIG_STRICT := 1
 KCONFIG_PACKAGE := CB.Config

 COREBOOT_EXPORTS += KCONFIG_CONFIG KCONFIG_AUTOHEADER KCONFIG_AUTOCONFIG
 COREBOOT_EXPORTS += KCONFIG_DEPENDENCIES KCONFIG_SPLITCONFIG KCONFIG_TRISTATE
 COREBOOT_EXPORTS += KCONFIG_NEGATIVES KCONFIG_STRICT
 COREBOOT_EXPORTS += KCONFIG_AUTOADS KCONFIG_PACKAGE

 # directory containing the toplevel Makefile.inc
 TOPLEVEL := .

 CONFIG_SHELL := sh
 KBUILD_DEFCONFIG := configs/defconfig
 UNAME_RELEASE := $(shell uname -r)
 HAVE_DOTCONFIG := $(wildcard $(DOTCONFIG))
 MAKEFLAGS += -rR --no-print-directory

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

 # Disable implicit/built-in rules to make Makefile errors fail fast.
 .SUFFIXES:

 HOSTCFLAGS := -g
 HOSTCXXFLAGS := -g

 PREPROCESS_ONLY := -E -P -x assembler-with-cpp -undef -I .

 DOXYGEN := doxygen
 DOXYGEN_OUTPUT_DIR := doxygen

 export $(COREBOOT_EXPORTS)

 all: real-all

 help_coreboot help::
 	@echo  '*** coreboot platform targets ***'
 	@echo  '  Use "make [target] V=1" for extra build debug information'
 	@echo  '  all                   - Build coreboot'
 	@echo  '  clean                 - Remove coreboot build artifacts'
 	@echo  '  distclean             - Remove build artifacts and config files'
 	@echo  '  doxygen               - Build doxygen documentation for coreboot'
 	@echo  '  doxyplatform          - Build doxygen documentation for the current platform'
 	@echo  '  sphinx                - Build sphinx documentation for coreboot'
 	@echo  '  sphinx-lint           - Build sphinx documenttion for coreboot with warnings as errors'
 	@echo  '  filelist              - Show files used in current build'
 	@echo  '  printall              - print makefile info for debugging'
 	@echo  '  gitconfig             - set up git to submit patches to coreboot'
 	@echo  '  ctags / ctags-project - make ctags file for all of coreboot or current board'
 	@echo  '  cscope / cscope-project - make cscope.out file for coreboot or current board'
 	@echo

 # This include must come _before_ the pattern rules below!
 # Order _does_ matter for pattern rules.
 include $(srck)/Makefile.inc

 # Three cases where we don't need fully populated $(obj) lists:
 # 1. when no .config exists
 # 2. when make config (in any flavour) is run
 # 3. when make distclean is run
 # Don't waste time on reading all Makefile.incs in these cases
 ifeq ($(strip $(HAVE_DOTCONFIG)),)
 NOCOMPILE:=1
 endif
 ifneq ($(MAKECMDGOALS),)
 ifneq ($(filter %config %clean cross% clang iasl lint% help% what-jenkins-does,$(MAKECMDGOALS)),)
 NOCOMPILE:=1
 endif
 ifneq ($(filter %clean lint% help% what-jenkins-does,$(MAKECMDGOALS)),)
 NOMKDIR:=1
 UNIT_TEST:=1
 endif
 endif

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

 $(xcompile): util/xcompile/xcompile
 	rm -f $@
 	$< $(XGCCPATH) > $@.tmp
 	\mv -f $@.tmp $@ 2> /dev/null
 	rm -f $@.tmp

 ifeq ($(NOCOMPILE),1)
 # We also don't use .xcompile in the no-compile situations, so
 # provide some reasonable defaults.
 HOSTCC ?= $(if $(shell type gcc 2>/dev/null),gcc,cc)
 HOSTCXX ?= g++

 include $(TOPLEVEL)/Makefile.inc
 include $(TOPLEVEL)/payloads/Makefile.inc
 include $(TOPLEVEL)/util/testing/Makefile.inc
 -include $(TOPLEVEL)/site-local/Makefile.inc
 include $(TOPLEVEL)/tests/Makefile.inc
 real-all:
 	@echo "Error: Expected config file ($(DOTCONFIG)) not present." >&2
 	@echo "Please specify a config file or run 'make menuconfig' to" >&2
 	@echo "generate a new config file." >&2
 	@exit 1
 else

 ifneq ($(UNIT_TEST),1)
 include $(DOTCONFIG)
 endif

 # The toolchain requires xcompile to determine the ARCH_SUPPORTED, so we can't
 # wait for make to generate the file.
 $(if $(wildcard $(xcompile)),, $(shell \
 	mkdir -p $(dir $(xcompile)) && \
 	util/xcompile/xcompile $(XGCCPATH) > $(xcompile) || rm -f $(xcompile)))

 include $(xcompile)

 ifneq ($(XCOMPILE_COMPLETE),1)
 $(shell rm -f $(xcompile))
 $(error $(xcompile) deleted because it's invalid. \
 	Restarting the build should fix that, or explain the problem)
 endif

 ifneq ($(CONFIG_MMX),y)
 CFLAGS_x86_32 += -mno-mmx
 endif

 ifneq ($(UNIT_TEST),1)
 include toolchain.inc
 endif

 strip_quotes = $(strip $(subst ",,$(subst \",,$(1))))
 # fix makefile syntax highlighting after strip macro \" "))

 # The primary target needs to be here before we include the
 # other files

 real-all: real-target

 # must come rather early
 .SECONDEXPANSION:
 .DELETE_ON_ERROR:

 $(KCONFIG_AUTOHEADER): $(KCONFIG_CONFIG) $(objutil)/kconfig/conf
 	$(MAKE) olddefconfig
 	$(MAKE) syncconfig

 $(KCONFIG_AUTOCONFIG): $(KCONFIG_AUTOHEADER)
 	true

 $(KCONFIG_AUTOADS): $(KCONFIG_CONFIG) $(KCONFIG_AUTOHEADER) $(objutil)/kconfig/toada
 	$(objutil)/kconfig/toada CB.Config <$< >$@

 $(obj)/%/$(notdir $(KCONFIG_AUTOADS)): $(KCONFIG_AUTOADS)
 	cp $< $@

 # 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))

 # Converts one or more source file paths to their corresponding build/ paths.
 # Only .ads, adb, .c and .S get converted to .o, other files (like .ld) keep
 # their name.
 # $1 stage name
 # $2 file path (list)
 src-to-obj=\
 	$(patsubst $(obj)/%,$(obj)/$(1)/%,\
 	$(patsubst $(obj)/$(1)/%,$(obj)/%,\
 	$(patsubst 3rdparty/%,$(obj)/%,\
 	$(patsubst src/%,$(obj)/%,\
 	$(patsubst %.ads,%.o,\
 	$(patsubst %.adb,%.o,\
 	$(patsubst %.c,%.o,\
 	$(patsubst %.S,%.o,\
 	$(subst .$(1),,$(2))))))))))

 # Converts one or more source file paths to the corresponding build/ paths
 # of their Ada library information (.ali) files.
 # $1 stage name
 # $2 file path (list)
 src-to-ali=\
 	$(patsubst $(obj)/%,$(obj)/$(1)/%,\
 	$(patsubst $(obj)/$(1)/%,$(obj)/%,\
 	$(patsubst 3rdparty/%,$(obj)/%,\
 	$(patsubst src/%,$(obj)/%,\
 	$(patsubst %.ads,%.ali,\
 	$(patsubst %.adb,%.ali,\
 	$(subst .$(1),,\
 	$(filter %.ads %.adb,$(2)))))))))

 # 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))) \
 	$(foreach special,$(special-classes), \
 		$(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
 	$(foreach class,$(classes), \
 		$(eval $(class)-srcs+= \
 			$$(subst $(absobj)/,$(obj)/, \
 			$$(subst $(top)/,, \
 			$$(abspath $$(subst $(dir $(1))/,/,$$(addprefix $(dir $(1)),$$($(class)-y)))))))) \
 	$(eval subdirs+=$$(subst $(CURDIR)/,,$$(wildcard $$(abspath $$(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:=$(TOPLEVEL)
 postinclude-hooks :=

 # Don't iterate through Makefile.incs under src/ when building tests
 ifneq ($(UNIT_TEST),1)
 $(eval $(call evaluate_subdirs))
 else
 include $(TOPLEVEL)/tests/Makefile.inc
 endif

 ifeq ($(FAILBUILD),1)
 $(error cannot continue build)
 endif

 # Run hooks registered by subdirectories that need to be evaluated after all files have been parsed
 $(eval $(postinclude-hooks))

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

 # Build Kconfig .ads if necessary
 ifeq ($(CONFIG_RAMSTAGE_ADA),y)
 ramstage-srcs += $(obj)/ramstage/$(notdir $(KCONFIG_AUTOADS))
 endif

 # To track dependencies, we need all Ada specification (.ads) files in
 # *-srcs. Extract / filter all specification files that have a matching
 # body (.adb) file here (specifications without a body are valid sources
 # in Ada).
 $(foreach class,$(classes),$(eval $(class)-extra-specs := \
 	$(filter \
 		$(addprefix %/,$(patsubst %.adb,%.ads,$(notdir $(filter %.adb,$($(class)-srcs))))), \
 		$(filter %.ads,$($(class)-srcs)))))
 $(foreach class,$(classes),$(eval $(class)-srcs := \
 	$(filter-out $($(class)-extra-specs),$($(class)-srcs))))

 $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class),$($(class)-srcs))))
 $(foreach class,$(classes),$(eval $(class)-alis:=$(call src-to-ali,$(class),$($(class)-srcs))))

 # For Ada includes
 $(foreach class,$(classes),$(eval $(class)-ada-dirs:=$(sort $(dir $(filter %.ads %.adb,$($(class)-srcs)) $($(class)-extra-specs)))))

 # Save all objs before processing them (for dependency inclusion)
 originalobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))

 # Call post-processors if they're defined
 $(foreach class,$(classes),\
 	$(if $(value $(class)-postprocess),$(eval $(call $(class)-postprocess,$($(class)-objs)))))

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

 # Reads dependencies from an Ada library information (.ali) file
 # Only basenames (with suffix) are preserved so we have to look the
 # paths up in $($(stage)-srcs).
 # $1 stage name
 # $2 ali file
 create_ada_deps=$$(if $(2),\
 	gnat.adc \
 	$$(filter \
 		$$(addprefix %/,$$(shell sed -ne's/^D \([^\t]\+\).*$$$$/\1/p' $(2) 2>/dev/null)), \
 		$$($(1)-srcs) $$($(1)-extra-specs)))

 # macro to define template macros that are used by use_template macro
 define create_cc_template
 # $1 obj class
 # $2 source suffix (c, S, ld, ...)
 # $3 additional compiler flags
 # $4 additional dependencies
 ifn$(EMPTY)def $(1)-objs_$(2)_template
 de$(EMPTY)fine $(1)-objs_$(2)_template
 ifn$(EMPTY)eq ($(filter ads adb,$(2)),)
 $$(call src-to-obj,$1,$$(1).$2): $$(1).$2 $$(call create_ada_deps,$1,$$(call src-to-ali,$1,$$(1).$2)) $(4)
 	@printf "    GCC        $$$$(subst $$$$(obj)/,,$$$$(@))\n"
 	$(GCC_$(1)) \
 		$$$$(ADAFLAGS_$(1)) $$$$(addprefix -I,$$$$($(1)-ada-dirs)) \
 		$(3) -c -o $$$$@ $$$$<
 el$(EMPTY)se
 $$(call src-to-obj,$1,$$(1).$2): $$(1).$2 $(KCONFIG_AUTOHEADER) $(4)
 	@printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
 	$(CC_$(1)) \
 		-MMD $$$$(CPPFLAGS_$(1)) $$$$(CFLAGS_$(1)) -MT $$$$(@) \
 		$(3) -c -o $$$$@ $$$$<
 end$(EMPTY)if
 en$(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 $(class)-$(type)-ccopts += $(generic-$(type)-ccopts) $($(class)-generic-ccopts)) \
 		$(if $(generic-objs_$(type)_template_gen),$(eval $(call generic-objs_$(type)_template_gen,$(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 $(file)))_template,$(basename $(file)))))
 $(eval $(foreach class,$(classes),$(call foreach-src,$(class))))

 # To supported complex package initializations, we need to call the
 # emitted code explicitly. gnatbind gathers all the calls for us
 # and exports them as a procedure $(stage)_adainit(). Every stage that
 # uses Ada code has to call it!
 define gnatbind_template
 # $1 class
 $$(obj)/$(1)/b__$(1).adb: $$$$(filter-out $$(obj)/$(1)/b__$(1).ali,$$$$($(1)-alis))
 	@printf "    BIND       $$(subst $$(obj)/,,$$@)\n"
 	# We have to give gnatbind a simple filename (without leading
 	# path components) so just cd there.
 	cd $$(dir $$@) && \
 		$$(GNATBIND_$(1)) -a -n \
 			--RTS=$$(absobj)/libgnat-$$(ARCH-$(1)-y)/ \
 			-L$(1)_ada -o $$(notdir $$@) \
 			$$(subst $$(dir $$@),,$$^)
 $$(obj)/$(1)/b__$(1).o: $$(obj)/$(1)/b__$(1).adb
 	@printf "    GCC        $$(subst $$(obj)/,,$$@)\n"
 	$(GCC_$(1)) $$(ADAFLAGS_$(1)) -c -o $$@ $$<
 $(1)-objs += $$(obj)/$(1)/b__$(1).o
 $($(1)-alis): %.ali: %.o ;
 endef

 $(eval $(foreach class,$(filter-out libgnat-%,$(classes)), \
 	$(if $($(class)-alis),$(call gnatbind_template,$(class)))))

 DEPENDENCIES += $(addsuffix .d,$(basename $(allobjs)))
 -include $(DEPENDENCIES)

 printall:
 	@$(foreach class,$(classes), echo $(class)-objs: $($(class)-objs) | tr ' ' '\n'; echo; )
 	@echo alldirs: $(alldirs) | tr ' ' '\n'; echo
 	@echo allsrcs: $(allsrcs) | tr ' ' '\n'; echo
 	@echo DEPENDENCIES: $(DEPENDENCIES) | tr ' ' '\n'; echo
 	@$(foreach class,$(special-classes),echo $(class):'$($(class))' | tr ' ' '\n'; echo; )
 endif

 ifndef NOMKDIR
 $(shell mkdir -p $(KCONFIG_SPLITCONFIG) $(objk)/lxdialog $(additional-dirs) $(alldirs))
 endif

 $(obj)/project_filelist.txt:
 	if [ -z "$(wildcard $(obj)/coreboot.rom)" ]; then \
 		echo "*** Error: Project must be built before generating file list ***"; \
 		exit 1; \
 	fi
 	find $(obj) -path "$(obj)/util" -prune -o -name "*.d" -exec cat {} \; | \
 	  sed "s|$(top)/||" | sed 's/[:\\]/ /g' | sed 's/ /\n/g' | sort | uniq | \
 	  grep -v '\.o$$' > $(obj)/project_filelist.txt

 filelist: $(obj)/project_filelist.txt
 	printf "\nFiles used in build:\n"
 	cat $(obj)/project_filelist.txt

 #works with either exuberant ctags or ctags.emacs
 ctags-project: clean-ctags $(obj)/project_filelist.txt
 	cat $(obj)/project_filelist.txt | \
 	  xargs ctags -o tags

 cscope-project: clean-cscope $(obj)/project_filelist.txt
 	cat $(obj)/project_filelist.txt | xargs cscope -b

 cscope:
 	cscope -bR

 sphinx:
 	$(MAKE) -C Documentation -f Makefile.sphinx html

 sphinx-lint:
 	$(MAKE) SPHINXOPTS=-W -C Documentation -f Makefile.sphinx html

 doxy: doxygen
 doxygen:
 	$(DOXYGEN) Documentation/Doxyfile.coreboot

 doxygen_simple:
 	$(DOXYGEN) Documentation/Doxyfile.coreboot_simple

 doxyplatform doxygen_platform: $(obj)/project_filelist.txt
 	echo
 	echo "Building doxygen documentation for $(CONFIG_MAINBOARD_PART_NUMBER)"
 	export DOXYGEN_OUTPUT_DIR="$$( echo $(DOXYGEN_OUTPUT_DIR)/$(call strip_quotes, $(CONFIG_MAINBOARD_VENDOR))_$(call strip_quotes, $(CONFIG_MAINBOARD_PART_NUMBER)) | sed 's|[^A-Za-z0-9/]|_|g' )"; \
 	mkdir -p "$$DOXYGEN_OUTPUT_DIR"; \
 	export DOXYFILES="$$(cat $(obj)/project_filelist.txt | grep -v '\.ld$$' | sed 's/\.aml/\.dsl/' | tr '\n' ' ')"; \
 	export DOXYGEN_PLATFORM="$(call strip_quotes, $(CONFIG_MAINBOARD_DIR)) \($(call strip_quotes, $(CONFIG_MAINBOARD_PART_NUMBER))\) version $(KERNELVERSION)"; \
 	$(DOXYGEN) Documentation/doxygen/Doxyfile.coreboot_platform

 doxyclean: doxygen-clean
 doxygen-clean:
 	rm -rf $(DOXYGEN_OUTPUT_DIR)

 clean-for-update: doxygen-clean clean-for-update-target
 	rm -rf $(obj) .xcompile

 clean: clean-for-update clean-target clean-utils
 	rm -f .ccwrap

 clean-cscope:
 	rm -f cscope.out

 clean-ctags:
 	rm -f tags

 clean-utils:
 	$(foreach tool, $(TOOLLIST), \
 		$(MAKE) -C util/$(tool) clean MFLAGS= MAKEFLAGS= ;)

 distclean-utils:
 	$(foreach tool, $(TOOLLIST), \
 		$(MAKE) -C util/$(tool) distclean MFLAGS= MAKEFLAGS= ; \
 		rm -f /util/$(tool)/junit.xml;)

 distclean: clean clean-ctags clean-cscope distclean-payloads distclean-utils
 	rm -f .config .config.old ..config.tmp* .kconfig.d .tmpconfig* .ccwrap .xcompile
 	rm -rf coreboot-builds coreboot-builds-chromeos
 	rm -f abuild*.xml junit.xml* util/lint/junit.xml

 .PHONY: $(PHONY) clean clean-for-update clean-cscope cscope distclean doxygen doxy doxygen_simple sphinx sphinx-lint
 .PHONY: ctags-project cscope-project clean-ctags
	## SPDX-License-Identifier: BSD-3-Clause

	ifneq ($(words $(CURDIR)),1)
	$(error Error: Path to the main directory cannot contain spaces)
	endif
	top := $(CURDIR)
	src := src
	srck := $(top)/util/kconfig
	obj ?= build
	override obj := $(subst $(top)/,,$(abspath $(obj)))
	xcompile ?= $(obj)/xcompile
	objutil ?= $(obj)/util
	objk := $(objutil)/kconfig
	absobj := $(abspath $(obj))

	additional-dirs :=

	VBOOT_HOST_BUILD ?= $(abspath $(objutil)/vboot_lib)

	COREBOOT_EXPORTS := COREBOOT_EXPORTS
	COREBOOT_EXPORTS += top src srck obj objutil objk

	# reproducible builds
	LANG:=C
	LC_ALL:=C
	TZ:=UTC0
	ifneq ($(NOCOMPILE),1)
	SOURCE_DATE_EPOCH := $(shell $(top)/util/genbuild_h/genbuild_h.sh . \| sed -n 's/^.define COREBOOT_BUILD_EPOCH\>."\(.\)".*/\1/p')
	endif
	# don't use COREBOOT_EXPORTS to ensure build steps outside the coreboot build system
	# are reproducible
	export LANG LC_ALL TZ SOURCE_DATE_EPOCH

	DOTCONFIG ?= $(top)/.config
	KCONFIG_CONFIG = $(DOTCONFIG)
	KCONFIG_AUTOADS := $(obj)/cb-config.ads
	KCONFIG_AUTOHEADER := $(obj)/config.h
	KCONFIG_AUTOCONFIG := $(obj)/auto.conf
	KCONFIG_DEPENDENCIES := $(obj)/auto.conf.cmd
	KCONFIG_SPLITCONFIG := $(obj)/config/
	KCONFIG_TRISTATE := $(obj)/tristate.conf
	KCONFIG_NEGATIVES := 1
	KCONFIG_STRICT := 1
	KCONFIG_PACKAGE := CB.Config

	COREBOOT_EXPORTS += KCONFIG_CONFIG KCONFIG_AUTOHEADER KCONFIG_AUTOCONFIG
	COREBOOT_EXPORTS += KCONFIG_DEPENDENCIES KCONFIG_SPLITCONFIG KCONFIG_TRISTATE
	COREBOOT_EXPORTS += KCONFIG_NEGATIVES KCONFIG_STRICT
	COREBOOT_EXPORTS += KCONFIG_AUTOADS KCONFIG_PACKAGE

	# directory containing the toplevel Makefile.inc
	TOPLEVEL := .

	CONFIG_SHELL := sh
	KBUILD_DEFCONFIG := configs/defconfig
	UNAME_RELEASE := $(shell uname -r)
	HAVE_DOTCONFIG := $(wildcard $(DOTCONFIG))
	MAKEFLAGS += -rR --no-print-directory

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

	# Disable implicit/built-in rules to make Makefile errors fail fast.
	.SUFFIXES:

	HOSTCFLAGS := -g
	HOSTCXXFLAGS := -g

	PREPROCESS_ONLY := -E -P -x assembler-with-cpp -undef -I .

	DOXYGEN := doxygen
	DOXYGEN_OUTPUT_DIR := doxygen

	export $(COREBOOT_EXPORTS)

	all: real-all

	help_coreboot help::
	@echo '* coreboot platform targets *'
	@echo ' Use "make [target] V=1" for extra build debug information'
	@echo ' all - Build coreboot'
	@echo ' clean - Remove coreboot build artifacts'
	@echo ' distclean - Remove build artifacts and config files'
	@echo ' doxygen - Build doxygen documentation for coreboot'
	@echo ' doxyplatform - Build doxygen documentation for the current platform'
	@echo ' sphinx - Build sphinx documentation for coreboot'
	@echo ' sphinx-lint - Build sphinx documenttion for coreboot with warnings as errors'
	@echo ' filelist - Show files used in current build'
	@echo ' printall - print makefile info for debugging'
	@echo ' gitconfig - set up git to submit patches to coreboot'
	@echo ' ctags / ctags-project - make ctags file for all of coreboot or current board'
	@echo ' cscope / cscope-project - make cscope.out file for coreboot or current board'
	@echo

	# This include must come _before_ the pattern rules below!
	# Order _does_ matter for pattern rules.
	include $(srck)/Makefile.inc

	# Three cases where we don't need fully populated $(obj) lists:
	# 1. when no .config exists
	# 2. when make config (in any flavour) is run
	# 3. when make distclean is run
	# Don't waste time on reading all Makefile.incs in these cases
	ifeq ($(strip $(HAVE_DOTCONFIG)),)
	NOCOMPILE:=1
	endif
	ifneq ($(MAKECMDGOALS),)
	ifneq ($(filter %config %clean cross% clang iasl lint% help% what-jenkins-does,$(MAKECMDGOALS)),)
	NOCOMPILE:=1
	endif
	ifneq ($(filter %clean lint% help% what-jenkins-does,$(MAKECMDGOALS)),)
	NOMKDIR:=1
	UNIT_TEST:=1
	endif
	endif

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

	$(xcompile): util/xcompile/xcompile
	rm -f $@
	$< $(XGCCPATH) > $@.tmp
	\mv -f $@.tmp $@ 2> /dev/null
	rm -f $@.tmp

	ifeq ($(NOCOMPILE),1)
	# We also don't use .xcompile in the no-compile situations, so
	# provide some reasonable defaults.
	HOSTCC ?= $(if $(shell type gcc 2>/dev/null),gcc,cc)
	HOSTCXX ?= g++

	include $(TOPLEVEL)/Makefile.inc
	include $(TOPLEVEL)/payloads/Makefile.inc
	include $(TOPLEVEL)/util/testing/Makefile.inc
	-include $(TOPLEVEL)/site-local/Makefile.inc
	include $(TOPLEVEL)/tests/Makefile.inc
	real-all:
	@echo "Error: Expected config file ($(DOTCONFIG)) not present." >&2
	@echo "Please specify a config file or run 'make menuconfig' to" >&2
	@echo "generate a new config file." >&2
	@exit 1
	else

	ifneq ($(UNIT_TEST),1)
	include $(DOTCONFIG)
	endif

	# The toolchain requires xcompile to determine the ARCH_SUPPORTED, so we can't
	# wait for make to generate the file.
	$(if $(wildcard $(xcompile)),, $(shell \
	mkdir -p $(dir $(xcompile)) && \
	util/xcompile/xcompile $(XGCCPATH) > $(xcompile) \|\| rm -f $(xcompile)))

	include $(xcompile)

	ifneq ($(XCOMPILE_COMPLETE),1)
	$(shell rm -f $(xcompile))
	$(error $(xcompile) deleted because it's invalid. \
	Restarting the build should fix that, or explain the problem)
	endif

	ifneq ($(CONFIG_MMX),y)
	CFLAGS_x86_32 += -mno-mmx
	endif

	ifneq ($(UNIT_TEST),1)
	include toolchain.inc
	endif

	strip_quotes = $(strip $(subst ",,$(subst \",,$(1))))
	# fix makefile syntax highlighting after strip macro \" "))

	# The primary target needs to be here before we include the
	# other files

	real-all: real-target

	# must come rather early
	.SECONDEXPANSION:
	.DELETE_ON_ERROR:

	$(KCONFIG_AUTOHEADER): $(KCONFIG_CONFIG) $(objutil)/kconfig/conf
	$(MAKE) olddefconfig
	$(MAKE) syncconfig

	$(KCONFIG_AUTOCONFIG): $(KCONFIG_AUTOHEADER)
	true

	$(KCONFIG_AUTOADS): $(KCONFIG_CONFIG) $(KCONFIG_AUTOHEADER) $(objutil)/kconfig/toada
	$(objutil)/kconfig/toada CB.Config <$< >$@

	$(obj)/%/$(notdir $(KCONFIG_AUTOADS)): $(KCONFIG_AUTOADS)
	cp $< $@

	# 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))

	# Converts one or more source file paths to their corresponding build/ paths.
	# Only .ads, adb, .c and .S get converted to .o, other files (like .ld) keep
	# their name.
	# $1 stage name
	# $2 file path (list)
	src-to-obj=\
	$(patsubst $(obj)/%,$(obj)/$(1)/%,\
	$(patsubst $(obj)/$(1)/%,$(obj)/%,\
	$(patsubst 3rdparty/%,$(obj)/%,\
	$(patsubst src/%,$(obj)/%,\
	$(patsubst %.ads,%.o,\
	$(patsubst %.adb,%.o,\
	$(patsubst %.c,%.o,\
	$(patsubst %.S,%.o,\
	$(subst .$(1),,$(2))))))))))

	# Converts one or more source file paths to the corresponding build/ paths
	# of their Ada library information (.ali) files.
	# $1 stage name
	# $2 file path (list)
	src-to-ali=\
	$(patsubst $(obj)/%,$(obj)/$(1)/%,\
	$(patsubst $(obj)/$(1)/%,$(obj)/%,\
	$(patsubst 3rdparty/%,$(obj)/%,\
	$(patsubst src/%,$(obj)/%,\
	$(patsubst %.ads,%.ali,\
	$(patsubst %.adb,%.ali,\
	$(subst .$(1),,\
	$(filter %.ads %.adb,$(2)))))))))

	# 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))) \
	$(foreach special,$(special-classes), \
	$(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
	$(foreach class,$(classes), \
	$(eval $(class)-srcs+= \
	$$(subst $(absobj)/,$(obj)/, \
	$$(subst $(top)/,, \
	$$(abspath $$(subst $(dir $(1))/,/,$$(addprefix $(dir $(1)),$$($(class)-y)))))))) \
	$(eval subdirs+=$$(subst $(CURDIR)/,,$$(wildcard $$(abspath $$(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:=$(TOPLEVEL)
	postinclude-hooks :=

	# Don't iterate through Makefile.incs under src/ when building tests
	ifneq ($(UNIT_TEST),1)
	$(eval $(call evaluate_subdirs))
	else
	include $(TOPLEVEL)/tests/Makefile.inc
	endif

	ifeq ($(FAILBUILD),1)
	$(error cannot continue build)
	endif

	# Run hooks registered by subdirectories that need to be evaluated after all files have been parsed
	$(eval $(postinclude-hooks))

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

	# Build Kconfig .ads if necessary
	ifeq ($(CONFIG_RAMSTAGE_ADA),y)
	ramstage-srcs += $(obj)/ramstage/$(notdir $(KCONFIG_AUTOADS))
	endif

	# To track dependencies, we need all Ada specification (.ads) files in
	# *-srcs. Extract / filter all specification files that have a matching
	# body (.adb) file here (specifications without a body are valid sources
	# in Ada).
	$(foreach class,$(classes),$(eval $(class)-extra-specs := \
	$(filter \
	$(addprefix %/,$(patsubst %.adb,%.ads,$(notdir $(filter %.adb,$($(class)-srcs))))), \
	$(filter %.ads,$($(class)-srcs)))))
	$(foreach class,$(classes),$(eval $(class)-srcs := \
	$(filter-out $($(class)-extra-specs),$($(class)-srcs))))

	$(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class),$($(class)-srcs))))
	$(foreach class,$(classes),$(eval $(class)-alis:=$(call src-to-ali,$(class),$($(class)-srcs))))

	# For Ada includes
	$(foreach class,$(classes),$(eval $(class)-ada-dirs:=$(sort $(dir $(filter %.ads %.adb,$($(class)-srcs)) $($(class)-extra-specs)))))

	# Save all objs before processing them (for dependency inclusion)
	originalobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))

	# Call post-processors if they're defined
	$(foreach class,$(classes),\
	$(if $(value $(class)-postprocess),$(eval $(call $(class)-postprocess,$($(class)-objs)))))

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

	# Reads dependencies from an Ada library information (.ali) file
	# Only basenames (with suffix) are preserved so we have to look the
	# paths up in $($(stage)-srcs).
	# $1 stage name
	# $2 ali file
	create_ada_deps=$$(if $(2),\
	gnat.adc \
	$$(filter \
	$$(addprefix %/,$$(shell sed -ne's/^D \([^\t]\+\).*$$$$/\1/p' $(2) 2>/dev/null)), \
	$$($(1)-srcs) $$($(1)-extra-specs)))

	# macro to define template macros that are used by use_template macro
	define create_cc_template
	# $1 obj class
	# $2 source suffix (c, S, ld, ...)
	# $3 additional compiler flags
	# $4 additional dependencies
	ifn$(EMPTY)def $(1)-objs_$(2)_template
	de$(EMPTY)fine $(1)-objs_$(2)_template
	ifn$(EMPTY)eq ($(filter ads adb,$(2)),)
	$$(call src-to-obj,$1,$$(1).$2): $$(1).$2 $$(call create_ada_deps,$1,$$(call src-to-ali,$1,$$(1).$2)) $(4)
	@printf " GCC $$$$(subst $$$$(obj)/,,$$$$(@))\n"
	$(GCC_$(1)) \
	$$$$(ADAFLAGS_$(1)) $$$$(addprefix -I,$$$$($(1)-ada-dirs)) \
	$(3) -c -o $$$$@ $$$$<
	el$(EMPTY)se
	$$(call src-to-obj,$1,$$(1).$2): $$(1).$2 $(KCONFIG_AUTOHEADER) $(4)
	@printf " CC $$$$(subst $$$$(obj)/,,$$$$(@))\n"
	$(CC_$(1)) \
	-MMD $$$$(CPPFLAGS_$(1)) $$$$(CFLAGS_$(1)) -MT $$$$(@) \
	$(3) -c -o $$$$@ $$$$<
	end$(EMPTY)if
	en$(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 $(class)-$(type)-ccopts += $(generic-$(type)-ccopts) $($(class)-generic-ccopts)) \
	$(if $(generic-objs_$(type)_template_gen),$(eval $(call generic-objs_$(type)_template_gen,$(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 $(file)))_template,$(basename $(file)))))
	$(eval $(foreach class,$(classes),$(call foreach-src,$(class))))

	# To supported complex package initializations, we need to call the
	# emitted code explicitly. gnatbind gathers all the calls for us
	# and exports them as a procedure $(stage)_adainit(). Every stage that
	# uses Ada code has to call it!
	define gnatbind_template
	# $1 class
	$$(obj)/$(1)/b__$(1).adb: $$$$(filter-out $$(obj)/$(1)/b__$(1).ali,$$$$($(1)-alis))
	@printf " BIND $$(subst $$(obj)/,,$$@)\n"
	# We have to give gnatbind a simple filename (without leading
	# path components) so just cd there.
	cd $$(dir $$@) && \
	$$(GNATBIND_$(1)) -a -n \
	--RTS=$$(absobj)/libgnat-$$(ARCH-$(1)-y)/ \
	-L$(1)_ada -o $$(notdir $$@) \
	$$(subst $$(dir $$@),,$$^)
	$$(obj)/$(1)/b__$(1).o: $$(obj)/$(1)/b__$(1).adb
	@printf " GCC $$(subst $$(obj)/,,$$@)\n"
	$(GCC_$(1)) $$(ADAFLAGS_$(1)) -c -o $$@ $$<
	$(1)-objs += $$(obj)/$(1)/b__$(1).o
	$($(1)-alis): %.ali: %.o ;
	endef

	$(eval $(foreach class,$(filter-out libgnat-%,$(classes)), \
	$(if $($(class)-alis),$(call gnatbind_template,$(class)))))

	DEPENDENCIES += $(addsuffix .d,$(basename $(allobjs)))
	-include $(DEPENDENCIES)

	printall:
	@$(foreach class,$(classes), echo $(class)-objs: $($(class)-objs) \| tr ' ' '\n'; echo; )
	@echo alldirs: $(alldirs) \| tr ' ' '\n'; echo
	@echo allsrcs: $(allsrcs) \| tr ' ' '\n'; echo
	@echo DEPENDENCIES: $(DEPENDENCIES) \| tr ' ' '\n'; echo
	@$(foreach class,$(special-classes),echo $(class):'$($(class))' \| tr ' ' '\n'; echo; )
	endif

	ifndef NOMKDIR
	$(shell mkdir -p $(KCONFIG_SPLITCONFIG) $(objk)/lxdialog $(additional-dirs) $(alldirs))
	endif

	$(obj)/project_filelist.txt:
	if [ -z "$(wildcard $(obj)/coreboot.rom)" ]; then \
	echo "* Error: Project must be built before generating file list *"; \
	exit 1; \
	fi
	find $(obj) -path "$(obj)/util" -prune -o -name "*.d" -exec cat {} \; \| \
	sed "s\|$(top)/\|\|" \| sed 's/[:\\]/ /g' \| sed 's/ /\n/g' \| sort \| uniq \| \
	grep -v '\.o$$' > $(obj)/project_filelist.txt

	filelist: $(obj)/project_filelist.txt
	printf "\nFiles used in build:\n"
	cat $(obj)/project_filelist.txt

	#works with either exuberant ctags or ctags.emacs
	ctags-project: clean-ctags $(obj)/project_filelist.txt
	cat $(obj)/project_filelist.txt \| \
	xargs ctags -o tags

	cscope-project: clean-cscope $(obj)/project_filelist.txt
	cat $(obj)/project_filelist.txt \| xargs cscope -b

	cscope:
	cscope -bR

	sphinx:
	$(MAKE) -C Documentation -f Makefile.sphinx html

	sphinx-lint:
	$(MAKE) SPHINXOPTS=-W -C Documentation -f Makefile.sphinx html

	doxy: doxygen
	doxygen:
	$(DOXYGEN) Documentation/Doxyfile.coreboot

	doxygen_simple:
	$(DOXYGEN) Documentation/Doxyfile.coreboot_simple

	doxyplatform doxygen_platform: $(obj)/project_filelist.txt
	echo
	echo "Building doxygen documentation for $(CONFIG_MAINBOARD_PART_NUMBER)"
	export DOXYGEN_OUTPUT_DIR="$$( echo $(DOXYGEN_OUTPUT_DIR)/$(call strip_quotes, $(CONFIG_MAINBOARD_VENDOR))_$(call strip_quotes, $(CONFIG_MAINBOARD_PART_NUMBER)) \| sed 's\|[^A-Za-z0-9/]\|_\|g' )"; \
	mkdir -p "$$DOXYGEN_OUTPUT_DIR"; \
	export DOXYFILES="$$(cat $(obj)/project_filelist.txt \| grep -v '\.ld$$' \| sed 's/\.aml/\.dsl/' \| tr '\n' ' ')"; \
	export DOXYGEN_PLATFORM="$(call strip_quotes, $(CONFIG_MAINBOARD_DIR)) \($(call strip_quotes, $(CONFIG_MAINBOARD_PART_NUMBER))\) version $(KERNELVERSION)"; \
	$(DOXYGEN) Documentation/doxygen/Doxyfile.coreboot_platform

	doxyclean: doxygen-clean
	doxygen-clean:
	rm -rf $(DOXYGEN_OUTPUT_DIR)

	clean-for-update: doxygen-clean clean-for-update-target
	rm -rf $(obj) .xcompile

	clean: clean-for-update clean-target clean-utils
	rm -f .ccwrap

	clean-cscope:
	rm -f cscope.out

	clean-ctags:
	rm -f tags

	clean-utils:
	$(foreach tool, $(TOOLLIST), \
	$(MAKE) -C util/$(tool) clean MFLAGS= MAKEFLAGS= ;)

	distclean-utils:
	$(foreach tool, $(TOOLLIST), \
	$(MAKE) -C util/$(tool) distclean MFLAGS= MAKEFLAGS= ; \
	rm -f /util/$(tool)/junit.xml;)

	distclean: clean clean-ctags clean-cscope distclean-payloads distclean-utils
	rm -f .config .config.old ..config.tmp* .kconfig.d .tmpconfig* .ccwrap .xcompile
	rm -rf coreboot-builds coreboot-builds-chromeos
	rm -f abuild.xml junit.xml util/lint/junit.xml

	.PHONY: $(PHONY) clean clean-for-update clean-cscope cscope distclean doxygen doxy doxygen_simple sphinx sphinx-lint
	.PHONY: ctags-project cscope-project clean-ctags