mk/compile.mk - optee-os-mtk - Git at Google

 # Input
 #
 # The output from mk/sub.mk
 # base-prefix
 # conf-file [optional] if set, all objects will depend on $(conf-file)
 # additional-compile-deps [optional] additional dependencies
 #
 # Output
 #
 # set	  objs
 # update  cleanfiles
 #
 # Generates explicit rules for all objs

 objs		:=

 # Disable all builtin rules
 .SUFFIXES:

 __cc-option = $(if $(shell $(CC$(sm)) $(1) -c -x c /dev/null -o /dev/null 2>&1 >/dev/null),$(2),$(1))
 _cc-opt-cached-var-name = cached-cc-option$(subst =,~,$(strip $(1)))$(subst $(empty) $(empty),,$(CC$(sm)))
 define _cc-option
 $(eval _cached := $(call _cc-opt-cached-var-name,$1))
 $(eval $(_cached) := $(if $(filter $(origin $(_cached)),undefined),$(call __cc-option,$(1),$(2)),$($(_cached))))
 $($(_cached))
 endef
 cc-option = $(strip $(call _cc-option,$(1),$(2)))

 comp-cflags$(sm) = -std=gnu99
 comp-aflags$(sm) =
 comp-cppflags$(sm) =

 ifeq ($(CFG_WERROR),y)
 comp-cflags$(sm)	+= -Werror
 endif
 comp-cflags$(sm)  	+= -fdiagnostics-show-option

 comp-cflags-warns-high = \
 	-Wall -Wcast-align  \
 	-Werror-implicit-function-declaration -Wextra -Wfloat-equal \
 	-Wformat-nonliteral -Wformat-security -Wformat=2 -Winit-self \
 	-Wmissing-declarations -Wmissing-format-attribute \
 	-Wmissing-include-dirs -Wmissing-noreturn \
 	-Wmissing-prototypes -Wnested-externs -Wpointer-arith \
 	-Wshadow -Wstrict-prototypes -Wswitch-default \
 	-Wwrite-strings \
 	-Wno-missing-field-initializers -Wno-format-zero-length
 comp-cflags-warns-medium = \
 	-Waggregate-return -Wredundant-decls
 comp-cflags-warns-low = \
 	-Wold-style-definition -Wstrict-aliasing=2 \
 	-Wundef

 comp-cflags-warns-1:= $(comp-cflags-warns-high)
 comp-cflags-warns-2:= $(comp-cflags-warns-1) $(comp-cflags-warns-medium)
 comp-cflags-warns-3:= $(comp-cflags-warns-2) $(comp-cflags-warns-low)

 WARNS		?= 3

 comp-cflags$(sm) += $(comp-cflags-warns-$(WARNS)) \
 			$(comp-cflags-warns-$(COMPILER_$(sm)))

 CHECK ?= sparse

 .PHONY: FORCE
 .PHONY: FORCE-GENSRC$(sm)
 FORCE:
 FORCE-GENSRC$(sm):


 define process_srcs
 objs		+= $2
 comp-dep-$2	:= $$(dir $2).$$(notdir $2).d
 comp-cmd-file-$2:= $$(dir $2).$$(notdir $2).cmd
 comp-sm-$2	:= $(sm)
 comp-lib-$2	:= $(libname)-$(sm)

 cleanfiles := $$(cleanfiles) $$(comp-dep-$2) $$(comp-cmd-file-$2) $2

 ifeq ($$(filter %.c,$1),$1)
 comp-q-$2 := CC
 comp-flags-$2 = $$(filter-out $$(CFLAGS_REMOVE) $$(cflags-remove) \
 			      $$(cflags-remove-$$(comp-sm-$2)) \
 			      $$(cflags-remove-$2), \
 		   $$(CFLAGS$$(arch-bits-$$(comp-sm-$2))) $$(CFLAGS_WARNS) \
 		   $$(comp-cflags$$(comp-sm-$2)) $$(cflags$$(comp-sm-$2)) \
 		   $$(cflags-lib$$(comp-lib-$2)) $$(cflags-$2))
 ifeq ($C,1)
 check-cmd-$2 = $(CHECK) $$(comp-cppflags-$2) $$<
 echo-check-$2 := $(cmd-echo-silent)
 echo-check-cmd-$2 = $(cmd-echo) $$(subst \",\\\",$$(check-cmd-$2))
 endif

 else ifeq ($$(filter %.S,$1),$1)
 comp-q-$2 := AS
 comp-flags-$2 = $$(filter-out $$(AFLAGS_REMOVE) $$(aflags-remove) \
 			      $$(aflags-remove-$$(comp-sm-$2)) \
 			      $$(aflags-remove-$2), \
 		   $$(AFLAGS) $$(comp-aflags$$(comp-sm-$2)) \
 		   $$(aflags$$(comp-sm-$2)) $$(aflags-$2))

 else
 $$(error "Don't know what to do with $1")
 endif

 comp-cppflags-$2 = $$(filter-out $$(CPPFLAGS_REMOVE) $$(cppflags-remove) \
 				 $$(cppflags-remove-$$(comp-sm-$2)) \
 				 $$(cppflags-remove-$2), \
 		      $$(nostdinc$$(comp-sm-$2)) $$(CPPFLAGS) \
 		      $$(addprefix -I,$$(incdirs$$(comp-sm-$2))) \
 		      $$(addprefix -I,$$(incdirs-lib$$(comp-lib-$2))) \
 		      $$(addprefix -I,$$(incdirs-$2)) \
 		      $$(cppflags$$(comp-sm-$2)) \
 		      $$(cppflags-lib$$(comp-lib-$2)) $$(cppflags-$2)) \
 		      -D__FILE_ID__=$$(subst -,_,$$(subst /,_,$$(subst .,_,$1)))

 comp-flags-$2 += -MD -MF $$(comp-dep-$2) -MT $$@
 comp-flags-$2 += $$(comp-cppflags-$2)

 comp-cmd-$2 = $$(CC$(sm)) $$(comp-flags-$2) -c $$< -o $$@
 comp-objcpy-cmd-$2 = $$(OBJCOPY$(sm)) \
 	--rename-section .rodata=.rodata.$1 \
 	--rename-section .rodata.str1.1=.rodata.str1.1.$1 \
 	$2

 # Assign defaults if unassigned
 echo-check-$2 ?= true
 echo-check-cmd-$2 ?= true
 check-cmd-$2 ?= true

 -include $$(comp-cmd-file-$2)
 -include $$(comp-dep-$2)


 $2: $1 FORCE-GENSRC$(sm)
 # Check if any prerequisites are newer than the target and
 # check if command line has changed
 	$$(if $$(strip $$(filter-out FORCE-GENSRC$(sm), $$?) \
 	    $$(filter-out $$(comp-cmd-$2), $$(old-cmd-$2)) \
 	    $$(filter-out $$(old-cmd-$2), $$(comp-cmd-$2))), \
 		@set -e ;\
 		mkdir -p $$(dir $2) ;\
 		$$(echo-check-$2) '  CHECK   $$<' ;\
 		$$(echo-check-cmd-$2) ;\
 		$$(check-cmd-$2) ;\
 		$(cmd-echo-silent) '  $$(comp-q-$2)      $$@' ;\
 		$(cmd-echo) $$(subst \",\\\",$$(comp-cmd-$2)) ;\
 		$$(comp-cmd-$2) ;\
 		$(cmd-echo) $$(comp-objcpy-cmd-$2) ;\
 		$$(comp-objcpy-cmd-$2) ;\
 		echo "old-cmd-$2 := $$(subst \",\\\",$$(comp-cmd-$2))" > \
 			$$(comp-cmd-file-$2) ;\
 	)

 endef

 $(foreach f, $(srcs), $(eval $(call \
 	process_srcs,$(f),$(out-dir)/$(base-prefix)$$(basename $f).o)))

 # Handle generated source files, that is, files that are compiled from out-dir
 $(foreach f, $(gen-srcs), $(eval $(call process_srcs,$(f),$$(basename $f).o)))

 # Handle specified source files, that is, files that have a specified path
 # but where the object file should go into a specified out directory
 $(foreach f, $(spec-srcs), $(eval $(call \
 	process_srcs,$(f),$(spec-out-dir)/$$(notdir $$(basename $f)).o)))

 $(objs): $(conf-file) $(additional-compile-deps)

 define _gen-asm-defines-file
 # c-filename in $1
 # h-filename in $2
 # s-filename in $3

 FORCE-GENSRC$(sm): $(2)

 comp-dep-$3	:= $$(dir $3)$$(notdir $3).d
 comp-cmd-file-$3:= $$(dir $3)$$(notdir $3).cmd
 comp-sm-$3	:= $(sm)

 cleanfiles := $$(cleanfiles) $$(comp-dep-$3) $$(comp-cmd-file-$3) $3 $2

 comp-flags-$3 = $$(filter-out $$(CFLAGS_REMOVE) $$(cflags-remove) \
 			      $$(cflags-remove-$$(comp-sm-$3)) \
 			      $$(cflags-remove-$3), \
 		   $$(CFLAGS) $$(CFLAGS_WARNS) \
 		   $$(comp-cflags$$(comp-sm-$3)) $$(cflags$$(comp-sm-$3)) \
 		   $$(cflags-lib$$(comp-lib-$3)) $$(cflags-$3))

 comp-cppflags-$3 = $$(filter-out $$(CPPFLAGS_REMOVE) $$(cppflags-remove) \
 				 $$(cppflags-remove-$$(comp-sm-$3)) \
 				 $$(cppflags-remove-$3), \
 		      $$(nostdinc$$(comp-sm-$3)) $$(CPPFLAGS) \
 		      $$(addprefix -I,$$(incdirs$$(comp-sm-$3))) \
 		      $$(addprefix -I,$$(incdirs-lib$$(comp-lib-$3))) \
 		      $$(addprefix -I,$$(incdirs-$3)) \
 		      $$(cppflags$$(comp-sm-$3)) \
 		      $$(cppflags-lib$$(comp-lib-$3)) $$(cppflags-$3))

 comp-flags-$3 += -MD -MF $$(comp-dep-$3) -MT $$@
 comp-flags-$3 += $$(comp-cppflags-$3)

 comp-cmd-$3 = $$(CC$(sm)) $$(comp-flags-$3) -fverbose-asm -S $$< -o $$@


 -include $$(comp-cmd-file-$3)
 -include $$(comp-dep-$3)

 $3: $1 $(conf-file) FORCE
 # Check if any prerequisites are newer than the target and
 # check if command line has changed
 	$$(if $$(strip $$(filter-out FORCE, $$?) \
 	    $$(filter-out $$(comp-cmd-$3), $$(old-cmd-$3)) \
 	    $$(filter-out $$(old-cmd-$3), $$(comp-cmd-$3))), \
 		@set -e ;\
 		mkdir -p $$(dir $2) $$(dir $3) ;\
 		$(cmd-echo-silent) '  CC      $$@'; 			\
 		$(cmd-echo) $$(subst \",\\\",$$(comp-cmd-$3)) ;\
 		$$(comp-cmd-$3) ;\
 		echo "old-cmd-$3 := $$(subst \",\\\",$$(comp-cmd-$3))" > \
 			$$(comp-cmd-file-$3) ;\
 	)

 guard-$2 := $$(subst -,_,$$(subst .,_,$$(subst /,_,$2)))

 $(2): $(3)
 	$(q)set -e;							\
 	$(cmd-echo-silent) '  CHK     $$@';			\
 	mkdir -p $$(dir $$@);					\
 	echo "#ifndef $$(guard-$2)" >$$@.tmp;			\
 	echo "#define $$(guard-$2)" >>$$@.tmp;			\
 	sed -ne 's|^.*==>\([^ ]*\) [\$$$$#]*\([-0-9]*\) \([^@/]*\).*|#define \1\t\2\t/* \3*/|p' \
 	< $$< >>$$@.tmp;					\
 	echo "#endif" >>$$@.tmp;				\
 	$$(call mv-if-changed,$$@.tmp,$$@)

 endef

 define gen-asm-defines-file
 $(call _gen-asm-defines-file,$1,$2,$(dir $2).$(notdir $(2:.h=.s)))
 endef

 $(foreach f,$(asm-defines-files),$(eval $(call gen-asm-defines-file,$(f),$(out-dir)/$(sm)/include/generated/$(basename $(notdir $(f))).h)))

 # Device tree source file compilation
 DTC := dtc
 DTC_FLAGS += -I dts -O dtb
 DTC_FLAGS += -Wno-unit_address_vs_reg

 define gen-dtb-file
 # dts file path/name in $1
 # dtb file path/name in $2

 dtb-basename-$2	:= $$(basename $$(notdir $2))
 dtb-predts-$2   := $$(dir $2)$$(dtb-basename-$2).pre.dts
 dtb-predep-$2	:= $$(dir $2).$$(dtb-basename-$2).pre.dts.d
 dtb-dep-$2	:= $$(dir $2).$$(notdir $2).d
 dtb-cmd-file-$2	:= $$(dir $2).$$(notdir $2).cmd

 cleanfiles := $$(cleanfiles) $2 \
 		$$(dtb-predts-$2) $$(dtb-predep-$2) \
 		$$(dtb-dep-$2) $$(dtb-cmd-file-$2)

 dtb-cppflags-$2	:= -Icore/include/ -x assembler-with-cpp \
 		   -E -ffreestanding $$(CPPFLAGS) \
 		   -MD -MF $$(dtb-predep-$2) -MT $2

 dtb-dtcflags-$2	:= $$(DTC_FLAGS) -d $$(dtb-dep-$2)

 -include $$(dtb-dep-$2)
 -include $$(dtb-predep-$2)
 -include $$(dtb-cmd-file-$2)

 dtb-precmd-$2 = $$(CPP$(sm)) $$(dtb-cppflags-$2) -o $$(dtb-predts-$2) $$<
 dtb-cmd-$2 = $$(DTC) $$(dtb-dtcflags-$2) -o $$@ $$(dtb-predts-$2)

 $2: $1 FORCE
 # Check if any prerequisites are newer than the target and
 # check if command line has changed
 	$$(if $$(strip $$(filter-out FORCE, $$?) \
 	    $$(filter-out $$(dtb-precmd-$2), $$(dtb-old-precmd-$2)) 	\
 	    $$(filter-out $$(dtb-old-precmd-$2), $$(dtb-precmd-$2)) 	\
 	    $$(filter-out $$(dtb-cmd-$2), $$(dtb-old-cmd-$2)) 		\
 	    $$(filter-out $$(dtb-old-cmd-$2), $$(dtb-cmd-$2))),		\
 		@set -e; 						\
 		mkdir -p $$(dir $2); 					\
 		$(cmd-echo-silent) '  CPP     $$(dtb-predts-$2)'; 	\
 		$$(dtb-precmd-$2);					\
 		$(cmd-echo-silent) '  DTC     $$@'; 			\
 		$$(dtb-cmd-$2);						\
 		echo "dtb-old-precmd-$2 := $$(subst \",\\\",$$(dtb-precmd-$2))" > \
 			$$(dtb-cmd-file-$2) ;\
 		echo "dtb-old-cmd-$2 := $$(subst \",\\\",$$(dtb-cmd-$2))" >> \
 			$$(dtb-cmd-file-$2) ;\
 	)

 endef

 additional-compile-deps :=
	# Input
	#
	# The output from mk/sub.mk
	# base-prefix
	# conf-file [optional] if set, all objects will depend on $(conf-file)
	# additional-compile-deps [optional] additional dependencies
	#
	# Output
	#
	# set objs
	# update cleanfiles
	#
	# Generates explicit rules for all objs

	objs :=

	# Disable all builtin rules
	.SUFFIXES:

	__cc-option = $(if $(shell $(CC$(sm)) $(1) -c -x c /dev/null -o /dev/null 2>&1 >/dev/null),$(2),$(1))
	_cc-opt-cached-var-name = cached-cc-option$(subst =,~,$(strip $(1)))$(subst $(empty) $(empty),,$(CC$(sm)))
	define _cc-option
	$(eval _cached := $(call _cc-opt-cached-var-name,$1))
	$(eval $(_cached) := $(if $(filter $(origin $(_cached)),undefined),$(call __cc-option,$(1),$(2)),$($(_cached))))
	$($(_cached))
	endef
	cc-option = $(strip $(call _cc-option,$(1),$(2)))

	comp-cflags$(sm) = -std=gnu99
	comp-aflags$(sm) =
	comp-cppflags$(sm) =

	ifeq ($(CFG_WERROR),y)
	comp-cflags$(sm) += -Werror
	endif
	comp-cflags$(sm) += -fdiagnostics-show-option

	comp-cflags-warns-high = \
	-Wall -Wcast-align \
	-Werror-implicit-function-declaration -Wextra -Wfloat-equal \
	-Wformat-nonliteral -Wformat-security -Wformat=2 -Winit-self \
	-Wmissing-declarations -Wmissing-format-attribute \
	-Wmissing-include-dirs -Wmissing-noreturn \
	-Wmissing-prototypes -Wnested-externs -Wpointer-arith \
	-Wshadow -Wstrict-prototypes -Wswitch-default \
	-Wwrite-strings \
	-Wno-missing-field-initializers -Wno-format-zero-length
	comp-cflags-warns-medium = \
	-Waggregate-return -Wredundant-decls
	comp-cflags-warns-low = \
	-Wold-style-definition -Wstrict-aliasing=2 \
	-Wundef

	comp-cflags-warns-1:= $(comp-cflags-warns-high)
	comp-cflags-warns-2:= $(comp-cflags-warns-1) $(comp-cflags-warns-medium)
	comp-cflags-warns-3:= $(comp-cflags-warns-2) $(comp-cflags-warns-low)

	WARNS ?= 3

	comp-cflags$(sm) += $(comp-cflags-warns-$(WARNS)) \
	$(comp-cflags-warns-$(COMPILER_$(sm)))

	CHECK ?= sparse

	.PHONY: FORCE
	.PHONY: FORCE-GENSRC$(sm)
	FORCE:
	FORCE-GENSRC$(sm):


	define process_srcs
	objs += $2
	comp-dep-$2 := $$(dir $2).$$(notdir $2).d
	comp-cmd-file-$2:= $$(dir $2).$$(notdir $2).cmd
	comp-sm-$2 := $(sm)
	comp-lib-$2 := $(libname)-$(sm)

	cleanfiles := $$(cleanfiles) $$(comp-dep-$2) $$(comp-cmd-file-$2) $2

	ifeq ($$(filter %.c,$1),$1)
	comp-q-$2 := CC
	comp-flags-$2 = $$(filter-out $$(CFLAGS_REMOVE) $$(cflags-remove) \
	$$(cflags-remove-$$(comp-sm-$2)) \
	$$(cflags-remove-$2), \
	$$(CFLAGS$$(arch-bits-$$(comp-sm-$2))) $$(CFLAGS_WARNS) \
	$$(comp-cflags$$(comp-sm-$2)) $$(cflags$$(comp-sm-$2)) \
	$$(cflags-lib$$(comp-lib-$2)) $$(cflags-$2))
	ifeq ($C,1)
	check-cmd-$2 = $(CHECK) $$(comp-cppflags-$2) $$<
	echo-check-$2 := $(cmd-echo-silent)
	echo-check-cmd-$2 = $(cmd-echo) $$(subst \",\\\",$$(check-cmd-$2))
	endif

	else ifeq ($$(filter %.S,$1),$1)
	comp-q-$2 := AS
	comp-flags-$2 = $$(filter-out $$(AFLAGS_REMOVE) $$(aflags-remove) \
	$$(aflags-remove-$$(comp-sm-$2)) \
	$$(aflags-remove-$2), \
	$$(AFLAGS) $$(comp-aflags$$(comp-sm-$2)) \
	$$(aflags$$(comp-sm-$2)) $$(aflags-$2))

	else
	$$(error "Don't know what to do with $1")
	endif

	comp-cppflags-$2 = $$(filter-out $$(CPPFLAGS_REMOVE) $$(cppflags-remove) \
	$$(cppflags-remove-$$(comp-sm-$2)) \
	$$(cppflags-remove-$2), \
	$$(nostdinc$$(comp-sm-$2)) $$(CPPFLAGS) \
	$$(addprefix -I,$$(incdirs$$(comp-sm-$2))) \
	$$(addprefix -I,$$(incdirs-lib$$(comp-lib-$2))) \
	$$(addprefix -I,$$(incdirs-$2)) \
	$$(cppflags$$(comp-sm-$2)) \
	$$(cppflags-lib$$(comp-lib-$2)) $$(cppflags-$2)) \
	-D__FILE_ID__=$$(subst -,_,$$(subst /,_,$$(subst .,_,$1)))

	comp-flags-$2 += -MD -MF $$(comp-dep-$2) -MT $$@
	comp-flags-$2 += $$(comp-cppflags-$2)

	comp-cmd-$2 = $$(CC$(sm)) $$(comp-flags-$2) -c $$< -o $$@
	comp-objcpy-cmd-$2 = $$(OBJCOPY$(sm)) \
	--rename-section .rodata=.rodata.$1 \
	--rename-section .rodata.str1.1=.rodata.str1.1.$1 \
	$2

	# Assign defaults if unassigned
	echo-check-$2 ?= true
	echo-check-cmd-$2 ?= true
	check-cmd-$2 ?= true

	-include $$(comp-cmd-file-$2)
	-include $$(comp-dep-$2)


	$2: $1 FORCE-GENSRC$(sm)
	# Check if any prerequisites are newer than the target and
	# check if command line has changed
	$$(if $$(strip $$(filter-out FORCE-GENSRC$(sm), $$?) \
	$$(filter-out $$(comp-cmd-$2), $$(old-cmd-$2)) \
	$$(filter-out $$(old-cmd-$2), $$(comp-cmd-$2))), \
	@set -e ;\
	mkdir -p $$(dir $2) ;\
	$$(echo-check-$2) ' CHECK $$<' ;\
	$$(echo-check-cmd-$2) ;\
	$$(check-cmd-$2) ;\
	$(cmd-echo-silent) ' $$(comp-q-$2) $$@' ;\
	$(cmd-echo) $$(subst \",\\\",$$(comp-cmd-$2)) ;\
	$$(comp-cmd-$2) ;\
	$(cmd-echo) $$(comp-objcpy-cmd-$2) ;\
	$$(comp-objcpy-cmd-$2) ;\
	echo "old-cmd-$2 := $$(subst \",\\\",$$(comp-cmd-$2))" > \
	$$(comp-cmd-file-$2) ;\
	)

	endef

	$(foreach f, $(srcs), $(eval $(call \
	process_srcs,$(f),$(out-dir)/$(base-prefix)$$(basename $f).o)))

	# Handle generated source files, that is, files that are compiled from out-dir
	$(foreach f, $(gen-srcs), $(eval $(call process_srcs,$(f),$$(basename $f).o)))

	# Handle specified source files, that is, files that have a specified path
	# but where the object file should go into a specified out directory
	$(foreach f, $(spec-srcs), $(eval $(call \
	process_srcs,$(f),$(spec-out-dir)/$$(notdir $$(basename $f)).o)))

	$(objs): $(conf-file) $(additional-compile-deps)

	define _gen-asm-defines-file
	# c-filename in $1
	# h-filename in $2
	# s-filename in $3

	FORCE-GENSRC$(sm): $(2)

	comp-dep-$3 := $$(dir $3)$$(notdir $3).d
	comp-cmd-file-$3:= $$(dir $3)$$(notdir $3).cmd
	comp-sm-$3 := $(sm)

	cleanfiles := $$(cleanfiles) $$(comp-dep-$3) $$(comp-cmd-file-$3) $3 $2

	comp-flags-$3 = $$(filter-out $$(CFLAGS_REMOVE) $$(cflags-remove) \
	$$(cflags-remove-$$(comp-sm-$3)) \
	$$(cflags-remove-$3), \
	$$(CFLAGS) $$(CFLAGS_WARNS) \
	$$(comp-cflags$$(comp-sm-$3)) $$(cflags$$(comp-sm-$3)) \
	$$(cflags-lib$$(comp-lib-$3)) $$(cflags-$3))

	comp-cppflags-$3 = $$(filter-out $$(CPPFLAGS_REMOVE) $$(cppflags-remove) \
	$$(cppflags-remove-$$(comp-sm-$3)) \
	$$(cppflags-remove-$3), \
	$$(nostdinc$$(comp-sm-$3)) $$(CPPFLAGS) \
	$$(addprefix -I,$$(incdirs$$(comp-sm-$3))) \
	$$(addprefix -I,$$(incdirs-lib$$(comp-lib-$3))) \
	$$(addprefix -I,$$(incdirs-$3)) \
	$$(cppflags$$(comp-sm-$3)) \
	$$(cppflags-lib$$(comp-lib-$3)) $$(cppflags-$3))

	comp-flags-$3 += -MD -MF $$(comp-dep-$3) -MT $$@
	comp-flags-$3 += $$(comp-cppflags-$3)

	comp-cmd-$3 = $$(CC$(sm)) $$(comp-flags-$3) -fverbose-asm -S $$< -o $$@


	-include $$(comp-cmd-file-$3)
	-include $$(comp-dep-$3)

	$3: $1 $(conf-file) FORCE
	# Check if any prerequisites are newer than the target and
	# check if command line has changed
	$$(if $$(strip $$(filter-out FORCE, $$?) \
	$$(filter-out $$(comp-cmd-$3), $$(old-cmd-$3)) \
	$$(filter-out $$(old-cmd-$3), $$(comp-cmd-$3))), \
	@set -e ;\
	mkdir -p $$(dir $2) $$(dir $3) ;\
	$(cmd-echo-silent) ' CC $$@'; \
	$(cmd-echo) $$(subst \",\\\",$$(comp-cmd-$3)) ;\
	$$(comp-cmd-$3) ;\
	echo "old-cmd-$3 := $$(subst \",\\\",$$(comp-cmd-$3))" > \
	$$(comp-cmd-file-$3) ;\
	)

	guard-$2 := $$(subst -,_,$$(subst .,_,$$(subst /,_,$2)))

	$(2): $(3)
	$(q)set -e; \
	$(cmd-echo-silent) ' CHK $$@'; \
	mkdir -p $$(dir $$@); \
	echo "#ifndef $$(guard-$2)" >$$@.tmp; \
	echo "#define $$(guard-$2)" >>$$@.tmp; \
	sed -ne 's\|^.==>\([^ ]\) [\$$$$#]\([-0-9]\) \([^@/]\).\|#define \1\t\2\t/* \3*/\|p' \
	< $$< >>$$@.tmp; \
	echo "#endif" >>$$@.tmp; \
	$$(call mv-if-changed,$$@.tmp,$$@)

	endef

	define gen-asm-defines-file
	$(call _gen-asm-defines-file,$1,$2,$(dir $2).$(notdir $(2:.h=.s)))
	endef

	$(foreach f,$(asm-defines-files),$(eval $(call gen-asm-defines-file,$(f),$(out-dir)/$(sm)/include/generated/$(basename $(notdir $(f))).h)))

	# Device tree source file compilation
	DTC := dtc
	DTC_FLAGS += -I dts -O dtb
	DTC_FLAGS += -Wno-unit_address_vs_reg

	define gen-dtb-file
	# dts file path/name in $1
	# dtb file path/name in $2

	dtb-basename-$2 := $$(basename $$(notdir $2))
	dtb-predts-$2 := $$(dir $2)$$(dtb-basename-$2).pre.dts
	dtb-predep-$2 := $$(dir $2).$$(dtb-basename-$2).pre.dts.d
	dtb-dep-$2 := $$(dir $2).$$(notdir $2).d
	dtb-cmd-file-$2 := $$(dir $2).$$(notdir $2).cmd

	cleanfiles := $$(cleanfiles) $2 \
	$$(dtb-predts-$2) $$(dtb-predep-$2) \
	$$(dtb-dep-$2) $$(dtb-cmd-file-$2)

	dtb-cppflags-$2 := -Icore/include/ -x assembler-with-cpp \
	-E -ffreestanding $$(CPPFLAGS) \
	-MD -MF $$(dtb-predep-$2) -MT $2

	dtb-dtcflags-$2 := $$(DTC_FLAGS) -d $$(dtb-dep-$2)

	-include $$(dtb-dep-$2)
	-include $$(dtb-predep-$2)
	-include $$(dtb-cmd-file-$2)

	dtb-precmd-$2 = $$(CPP$(sm)) $$(dtb-cppflags-$2) -o $$(dtb-predts-$2) $$<
	dtb-cmd-$2 = $$(DTC) $$(dtb-dtcflags-$2) -o $$@ $$(dtb-predts-$2)

	$2: $1 FORCE
	# Check if any prerequisites are newer than the target and
	# check if command line has changed
	$$(if $$(strip $$(filter-out FORCE, $$?) \
	$$(filter-out $$(dtb-precmd-$2), $$(dtb-old-precmd-$2)) \
	$$(filter-out $$(dtb-old-precmd-$2), $$(dtb-precmd-$2)) \
	$$(filter-out $$(dtb-cmd-$2), $$(dtb-old-cmd-$2)) \
	$$(filter-out $$(dtb-old-cmd-$2), $$(dtb-cmd-$2))), \
	@set -e; \
	mkdir -p $$(dir $2); \
	$(cmd-echo-silent) ' CPP $$(dtb-predts-$2)'; \
	$$(dtb-precmd-$2); \
	$(cmd-echo-silent) ' DTC $$@'; \
	$$(dtb-cmd-$2); \
	echo "dtb-old-precmd-$2 := $$(subst \",\\\",$$(dtb-precmd-$2))" > \
	$$(dtb-cmd-file-$2) ;\
	echo "dtb-old-cmd-$2 := $$(subst \",\\\",$$(dtb-cmd-$2))" >> \
	$$(dtb-cmd-file-$2) ;\
	)

	endef

	additional-compile-deps :=