# Input
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#
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# The output from mk/sub.mk
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# base-prefix
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# conf-file [optional] if set, all objects will depend on $(conf-file)
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# additional-compile-deps [optional] additional dependencies
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#
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# Output
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#
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# set objs
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# update cleanfiles
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#
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# Generates explicit rules for all objs
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objs :=
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# Disable all builtin rules
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.SUFFIXES:
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comp-cflags$(sm) = -std=gnu99
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comp-aflags$(sm) =
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comp-cppflags$(sm) =
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ifeq ($(CFG_WERROR),y)
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comp-cflags$(sm) += -Werror
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endif
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comp-cflags$(sm) += -fdiagnostics-show-option
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comp-cflags-warns-high = \
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-Wall -Wcast-align \
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-Werror-implicit-function-declaration -Wextra -Wfloat-equal \
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-Wformat-nonliteral -Wformat-security -Wformat=2 -Winit-self \
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-Wmissing-declarations -Wmissing-format-attribute \
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-Wmissing-include-dirs -Wmissing-noreturn \
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-Wmissing-prototypes -Wnested-externs -Wpointer-arith \
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-Wshadow -Wstrict-prototypes -Wswitch-default \
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-Wwrite-strings \
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-Wno-missing-field-initializers -Wno-format-zero-length \
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-Werror
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comp-cflags-warns-medium = \
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-Wredundant-decls
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comp-cflags-warns-low = \
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-Wold-style-definition -Wstrict-aliasing=2 \
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-Wundef
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comp-cflags-warns-1:= $(comp-cflags-warns-high)
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comp-cflags-warns-2:= $(comp-cflags-warns-1) $(comp-cflags-warns-medium)
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comp-cflags-warns-3:= $(comp-cflags-warns-2) $(comp-cflags-warns-low)
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WARNS ?= 3
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comp-cflags$(sm) += $(comp-cflags-warns-$(WARNS)) \
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$(comp-cflags-warns-$(COMPILER_$(sm)))
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CHECK ?= sparse
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.PHONY: FORCE
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.PHONY: FORCE-GENSRC$(sm)
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FORCE:
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FORCE-GENSRC$(sm):
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define process_srcs
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objs += $2
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comp-dep-$2 := $$(dir $2).$$(notdir $2).d
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comp-cmd-file-$2:= $$(dir $2).$$(notdir $2).cmd
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comp-sm-$2 := $(sm)
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comp-lib-$2 := $(libname)-$(sm)
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cleanfiles := $$(cleanfiles) $$(comp-dep-$2) $$(comp-cmd-file-$2) $2
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ifeq ($$(filter %.c,$1),$1)
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comp-q-$2 := CC # one trailing space
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comp-compiler-$2 := $$(CC$(sm))
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comp-flags-$2 = $$(filter-out $$(CFLAGS_REMOVE) $$(cflags-remove) \
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$$(cflags-remove-$$(comp-sm-$2)) \
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$$(cflags-remove-$2), \
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$$(CFLAGS$$(arch-bits-$$(comp-sm-$2))) $$(CFLAGS_WARNS) \
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$$(comp-cflags$$(comp-sm-$2)) $$(cflags$$(comp-sm-$2)) \
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$$(cflags-lib$$(comp-lib-$2)) $$(cflags-$2))
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ifeq ($C,1)
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check-cmd-$2 = $(CHECK) $$(comp-cppflags-$2) $$<
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echo-check-$2 := $(cmd-echo-silent)
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echo-check-cmd-$2 = $(cmd-echo) $$(subst \",\\\",$$(check-cmd-$2))
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endif
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else ifeq ($$(filter %.S,$1),$1)
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comp-q-$2 := AS # one trailing space
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comp-compiler-$2 := $$(CC$(sm))
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comp-flags-$2 = $$(filter-out $$(AFLAGS_REMOVE) $$(aflags-remove) \
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$$(aflags-remove-$$(comp-sm-$2)) \
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$$(aflags-remove-$2), \
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$$(AFLAGS) $$(comp-aflags$$(comp-sm-$2)) \
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$$(aflags$$(comp-sm-$2)) $$(aflags-$2))
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else ifeq ($$(filter %.cpp,$1),$1)
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comp-q-$2 := CXX
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comp-compiler-$2 := $$(CXX$(sm))
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comp-flags-$2 = $$(filter-out $$(CXXFLAGS_REMOVE) $$(cxxflags-remove) \
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$$(cxxflags-remove-$$(comp-sm-$2)) \
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$$(cxxflags-remove-$2), \
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$$(CXXFLAGS) $$(comp-cxxflags$$(comp-sm-$2)) \
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$$(cxxflags$$(comp-sm-$2)) $$(cxxflags-$2))
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else
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$$(error "Don't know what to do with $1")
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endif
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comp-cppflags-$2 = $$(filter-out $$(CPPFLAGS_REMOVE) $$(cppflags-remove) \
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$$(cppflags-remove-$$(comp-sm-$2)) \
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$$(cppflags-remove-$2), \
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$$(nostdinc$$(comp-sm-$2)) $$(CPPFLAGS) \
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$$(addprefix -I,$$(incdirs$$(comp-sm-$2))) \
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$$(addprefix -I,$$(incdirs-lib$$(comp-lib-$2))) \
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$$(addprefix -I,$$(incdirs-$2)) \
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$$(cppflags$$(comp-sm-$2)) \
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$$(cppflags-lib$$(comp-lib-$2)) $$(cppflags-$2)) \
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-D__FILE_ID__=$$(subst -,_,$$(subst /,_,$$(subst .,_,$1)))
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comp-flags-$2 += -MD -MF $$(comp-dep-$2) -MT $$@
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comp-flags-$2 += $$(comp-cppflags-$2)
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comp-cmd-$2 = $$(comp-compiler-$2) $$(comp-flags-$2) -c $$< -o $$@
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comp-objcpy-cmd-$2 = $$(OBJCOPY$(sm)) \
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--rename-section .rodata=.rodata.$1 \
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--rename-section .rodata.str1.1=.rodata.str1.1.$1 \
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$2
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# Assign defaults if unassigned
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echo-check-$2 ?= true
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echo-check-cmd-$2 ?= true
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check-cmd-$2 ?= true
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-include $$(comp-cmd-file-$2)
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-include $$(comp-dep-$2)
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$2: $1 FORCE-GENSRC$(sm)
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# Check if any prerequisites are newer than the target and
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# check if command line has changed
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$$(if $$(strip $$(filter-out FORCE-GENSRC$(sm), $$?) \
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$$(filter-out $$(comp-cmd-$2), $$(old-cmd-$2)) \
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$$(filter-out $$(old-cmd-$2), $$(comp-cmd-$2))), \
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@set -e ;\
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mkdir -p $$(dir $2) ;\
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$$(echo-check-$2) ' CHECK $$<' ;\
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$$(echo-check-cmd-$2) ;\
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$$(check-cmd-$2) ;\
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$(cmd-echo-silent) ' $$(comp-q-$2) $$@' ;\
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$(cmd-echo) $$(subst \",\\\",$$(comp-cmd-$2)) ;\
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$$(comp-cmd-$2) ;\
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$(cmd-echo) $$(comp-objcpy-cmd-$2) ;\
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$$(comp-objcpy-cmd-$2) ;\
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echo "old-cmd-$2 := $$(subst \",\\\",$$(comp-cmd-$2))" > \
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$$(comp-cmd-file-$2) ;\
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)
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endef
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$(foreach f, $(srcs), $(eval $(call \
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process_srcs,$(f),$(out-dir)/$(base-prefix)$$(basename $f).o)))
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# Handle generated source files, that is, files that are compiled from out-dir
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$(foreach f, $(gen-srcs), $(eval $(call process_srcs,$(f),$$(basename $f).o)))
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# Handle specified source files, that is, files that have a specified path
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# but where the object file should go into a specified out directory
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$(foreach f, $(spec-srcs), $(eval $(call \
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process_srcs,$(f),$(spec-out-dir)/$$(notdir $$(basename $f)).o)))
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$(objs): $(conf-file) $(additional-compile-deps)
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define _gen-asm-defines-file
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# c-filename in $1
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# h-filename in $2
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# s-filename in $3
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# Dependencies in $4
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FORCE-GENSRC$(sm): $(2)
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comp-dep-$3 := $$(dir $3)$$(notdir $3).d
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comp-cmd-file-$3:= $$(dir $3)$$(notdir $3).cmd
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comp-sm-$3 := $(sm)
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cleanfiles := $$(cleanfiles) $$(comp-dep-$3) $$(comp-cmd-file-$3) $3 $2
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comp-flags-$3 = $$(filter-out $$(CFLAGS_REMOVE) $$(cflags-remove) \
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$$(cflags-remove-$$(comp-sm-$3)) \
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$$(cflags-remove-$3), \
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$$(CFLAGS) $$(CFLAGS_WARNS) \
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$$(comp-cflags$$(comp-sm-$3)) $$(cflags$$(comp-sm-$3)) \
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$$(cflags-lib$$(comp-lib-$3)) $$(cflags-$3))
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comp-cppflags-$3 = $$(filter-out $$(CPPFLAGS_REMOVE) $$(cppflags-remove) \
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$$(cppflags-remove-$$(comp-sm-$3)) \
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$$(cppflags-remove-$3), \
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$$(nostdinc$$(comp-sm-$3)) $$(CPPFLAGS) \
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$$(addprefix -I,$$(incdirs$$(comp-sm-$3))) \
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$$(addprefix -I,$$(incdirs-lib$$(comp-lib-$3))) \
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$$(addprefix -I,$$(incdirs-$3)) \
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$$(cppflags$$(comp-sm-$3)) \
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$$(cppflags-lib$$(comp-lib-$3)) $$(cppflags-$3))
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comp-flags-$3 += -MD -MF $$(comp-dep-$3) -MT $$@
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comp-flags-$3 += $$(comp-cppflags-$3)
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comp-cmd-$3 = $$(CC$(sm)) $$(comp-flags-$3) -fverbose-asm -S $$< -o $$@
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-include $$(comp-cmd-file-$3)
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-include $$(comp-dep-$3)
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$3: $1 $(conf-file) $(4) FORCE
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# Check if any prerequisites are newer than the target and
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# check if command line has changed
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$$(if $$(strip $$(filter-out FORCE, $$?) \
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$$(filter-out $$(comp-cmd-$3), $$(old-cmd-$3)) \
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$$(filter-out $$(old-cmd-$3), $$(comp-cmd-$3))), \
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@set -e ;\
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mkdir -p $$(dir $2) $$(dir $3) ;\
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$(cmd-echo-silent) ' CC $$@'; \
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$(cmd-echo) $$(subst \",\\\",$$(comp-cmd-$3)) ;\
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$$(comp-cmd-$3) ;\
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echo "old-cmd-$3 := $$(subst \",\\\",$$(comp-cmd-$3))" > \
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$$(comp-cmd-file-$3) ;\
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)
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guard-$2 := $$(subst -,_,$$(subst .,_,$$(subst /,_,$$(subst +,_,$2))))
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$(2): $(3)
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$(q)set -e; \
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$(cmd-echo-silent) ' CHK $$@'; \
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mkdir -p $$(dir $$@); \
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echo "#ifndef $$(guard-$2)" >$$@.tmp; \
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echo "#define $$(guard-$2)" >>$$@.tmp; \
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sed -ne 's|^.*==>\([^ ]*\) [\$$$$#]*\([-0-9]*\) \([^@/]*\).*|#define \1\t\2\t/* \3*/|p' \
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< $$< >>$$@.tmp; \
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echo "#endif" >>$$@.tmp; \
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$$(call mv-if-changed,$$@.tmp,$$@)
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endef
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define gen-asm-defines-file
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$(call _gen-asm-defines-file,$1,$2,$(dir $2).$(notdir $(2:.h=.s)),$(asm-defines-$(notdir $(1))-deps))
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endef
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$(foreach f,$(asm-defines-files),$(eval $(call gen-asm-defines-file,$(f),$(out-dir)/$(sm)/include/generated/$(basename $(notdir $(f))).h)))
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# Device tree source file compilation
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DTC := dtc
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DTC_FLAGS += -I dts -O dtb
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DTC_FLAGS += -Wno-unit_address_vs_reg
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define gen-dtb-file
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# dts file path/name in $1
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# dtb file path/name in $2
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dtb-basename-$2 := $$(basename $$(notdir $2))
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dtb-predts-$2 := $$(dir $2)$$(dtb-basename-$2).pre.dts
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dtb-predep-$2 := $$(dir $2).$$(dtb-basename-$2).pre.dts.d
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dtb-dep-$2 := $$(dir $2).$$(notdir $2).d
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dtb-cmd-file-$2 := $$(dir $2).$$(notdir $2).cmd
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cleanfiles := $$(cleanfiles) $2 \
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$$(dtb-predts-$2) $$(dtb-predep-$2) \
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$$(dtb-dep-$2) $$(dtb-cmd-file-$2)
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dtb-cppflags-$2 := -Icore/include/ -x assembler-with-cpp \
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-E -ffreestanding $$(CPPFLAGS) \
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-MD -MF $$(dtb-predep-$2) -MT $2
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dtb-dtcflags-$2 := $$(DTC_FLAGS) -d $$(dtb-dep-$2)
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-include $$(dtb-dep-$2)
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-include $$(dtb-predep-$2)
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-include $$(dtb-cmd-file-$2)
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dtb-precmd-$2 = $$(CPP$(sm)) $$(dtb-cppflags-$2) -o $$(dtb-predts-$2) $$<
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dtb-cmd-$2 = $$(DTC) $$(dtb-dtcflags-$2) -o $$@ $$(dtb-predts-$2)
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$2: $1 FORCE
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# Check if any prerequisites are newer than the target and
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# check if command line has changed
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$$(if $$(strip $$(filter-out FORCE, $$?) \
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$$(filter-out $$(dtb-precmd-$2), $$(dtb-old-precmd-$2)) \
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$$(filter-out $$(dtb-old-precmd-$2), $$(dtb-precmd-$2)) \
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$$(filter-out $$(dtb-cmd-$2), $$(dtb-old-cmd-$2)) \
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$$(filter-out $$(dtb-old-cmd-$2), $$(dtb-cmd-$2))), \
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@set -e; \
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mkdir -p $$(dir $2); \
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$(cmd-echo-silent) ' CPP $$(dtb-predts-$2)'; \
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$$(dtb-precmd-$2); \
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$(cmd-echo-silent) ' DTC $$@'; \
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$$(dtb-cmd-$2); \
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echo "dtb-old-precmd-$2 := $$(subst \",\\\",$$(dtb-precmd-$2))" > \
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$$(dtb-cmd-file-$2) ;\
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echo "dtb-old-cmd-$2 := $$(subst \",\\\",$$(dtb-cmd-$2))" >> \
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$$(dtb-cmd-file-$2) ;\
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)
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endef
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additional-compile-deps :=
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