Commit 37c8a5fa authored by Rob Herring's avatar Rob Herring

kbuild: consolidate Devicetree dtb build rules

There is nothing arch specific about building dtb files other than their
location under /arch/*/boot/dts/. Keeping each arch aligned is a pain.
The dependencies and supported targets are all slightly different.
Also, a cross-compiler for each arch is needed, but really the host
compiler preprocessor is perfectly fine for building dtbs. Move the
build rules to a common location and remove the arch specific ones. This
is done in a single step to avoid warnings about overriding rules.

The build dependencies had been a mixture of 'scripts' and/or 'prepare'.
These pull in several dependencies some of which need a target compiler
(specifically devicetable-offsets.h) and aren't needed to build dtbs.
All that is really needed is dtc, so adjust the dependencies to only be
dtc.

This change enables support 'dtbs_install' on some arches which were
missing the target.
Acked-by: default avatarWill Deacon <will.deacon@arm.com>
Acked-by: default avatarPaul Burton <paul.burton@mips.com>
Acked-by: default avatarLey Foon Tan <ley.foon.tan@intel.com>
Acked-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: linux-kbuild@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
Cc: linux-mips@linux-mips.org
Cc: nios2-dev@lists.rocketboards.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-xtensa@linux-xtensa.org
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent be7cd2df
...@@ -1071,7 +1071,7 @@ include/config/kernel.release: $(srctree)/Makefile FORCE ...@@ -1071,7 +1071,7 @@ include/config/kernel.release: $(srctree)/Makefile FORCE
# Carefully list dependencies so we do not try to build scripts twice # Carefully list dependencies so we do not try to build scripts twice
# in parallel # in parallel
PHONY += scripts PHONY += scripts
scripts: scripts_basic asm-generic gcc-plugins $(autoksyms_h) scripts: scripts_basic scripts_dtc asm-generic gcc-plugins $(autoksyms_h)
$(Q)$(MAKE) $(build)=$(@) $(Q)$(MAKE) $(build)=$(@)
# Things we need to do before we recursively start building the kernel # Things we need to do before we recursively start building the kernel
...@@ -1215,6 +1215,35 @@ kselftest-merge: ...@@ -1215,6 +1215,35 @@ kselftest-merge:
$(srctree)/tools/testing/selftests/*/config $(srctree)/tools/testing/selftests/*/config
+$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig +$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
# ---------------------------------------------------------------------------
# Devicetree files
ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),)
dtstree := arch/$(SRCARCH)/boot/dts
endif
ifneq ($(dtstree),)
%.dtb: prepare3 scripts_dtc
$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
PHONY += dtbs dtbs_install
dtbs: prepare3 scripts_dtc
$(Q)$(MAKE) $(build)=$(dtstree)
dtbs_install:
$(Q)$(MAKE) $(dtbinst)=$(dtstree)
ifdef CONFIG_OF_EARLY_FLATTREE
all: dtbs
endif
endif
PHONY += scripts_dtc
scripts_dtc: scripts_basic
$(Q)$(MAKE) $(build)=scripts/dtc
# --------------------------------------------------------------------------- # ---------------------------------------------------------------------------
# Modules # Modules
...@@ -1424,6 +1453,12 @@ help: ...@@ -1424,6 +1453,12 @@ help:
@echo ' kselftest-merge - Merge all the config dependencies of kselftest to existing' @echo ' kselftest-merge - Merge all the config dependencies of kselftest to existing'
@echo ' .config.' @echo ' .config.'
@echo '' @echo ''
@$(if $(dtstree), \
echo 'Devicetree:'; \
echo '* dtbs - Build device tree blobs for enabled boards'; \
echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'; \
echo '')
@echo 'Userspace tools targets:' @echo 'Userspace tools targets:'
@echo ' use "make tools/help"' @echo ' use "make tools/help"'
@echo ' or "cd tools; make help"' @echo ' or "cd tools; make help"'
......
...@@ -132,11 +132,5 @@ boot_targets += uImage uImage.bin uImage.gz ...@@ -132,11 +132,5 @@ boot_targets += uImage uImage.bin uImage.gz
$(boot_targets): vmlinux $(boot_targets): vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
%.dtb %.dtb.S %.dtb.o: scripts
$(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
dtbs: scripts
$(Q)$(MAKE) $(build)=$(boot)/dts
archclean: archclean:
$(Q)$(MAKE) $(clean)=$(boot) $(Q)$(MAKE) $(clean)=$(boot)
...@@ -307,12 +307,7 @@ else ...@@ -307,12 +307,7 @@ else
KBUILD_IMAGE := $(boot)/zImage KBUILD_IMAGE := $(boot)/zImage
endif endif
# Build the DT binary blobs if we have OF configured all: $(notdir $(KBUILD_IMAGE))
ifeq ($(CONFIG_USE_OF),y)
KBUILD_DTBS := dtbs
endif
all: $(notdir $(KBUILD_IMAGE)) $(KBUILD_DTBS)
archheaders: archheaders:
...@@ -339,17 +334,6 @@ $(BOOT_TARGETS): vmlinux ...@@ -339,17 +334,6 @@ $(BOOT_TARGETS): vmlinux
$(INSTALL_TARGETS): $(INSTALL_TARGETS):
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
%.dtb: | scripts
$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
PHONY += dtbs dtbs_install
dtbs: prepare scripts
$(Q)$(MAKE) $(build)=$(boot)/dts
dtbs_install:
$(Q)$(MAKE) $(dtbinst)=$(boot)/dts
PHONY += vdso_install PHONY += vdso_install
vdso_install: vdso_install:
ifeq ($(CONFIG_VDSO),y) ifeq ($(CONFIG_VDSO),y)
...@@ -371,8 +355,6 @@ define archhelp ...@@ -371,8 +355,6 @@ define archhelp
echo ' uImage - U-Boot wrapped zImage' echo ' uImage - U-Boot wrapped zImage'
echo ' bootpImage - Combined zImage and initial RAM disk' echo ' bootpImage - Combined zImage and initial RAM disk'
echo ' (supply initrd image via make variable INITRD=<path>)' echo ' (supply initrd image via make variable INITRD=<path>)'
echo '* dtbs - Build device tree blobs for enabled boards'
echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'
echo ' install - Install uncompressed kernel' echo ' install - Install uncompressed kernel'
echo ' zinstall - Install compressed kernel' echo ' zinstall - Install compressed kernel'
echo ' uinstall - Install U-Boot wrapped compressed kernel' echo ' uinstall - Install U-Boot wrapped compressed kernel'
......
...@@ -113,9 +113,8 @@ core-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a ...@@ -113,9 +113,8 @@ core-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a
# Default target when executing plain make # Default target when executing plain make
boot := arch/arm64/boot boot := arch/arm64/boot
KBUILD_IMAGE := $(boot)/Image.gz KBUILD_IMAGE := $(boot)/Image.gz
KBUILD_DTBS := dtbs
all: Image.gz $(KBUILD_DTBS) all: Image.gz
Image: vmlinux Image: vmlinux
...@@ -127,17 +126,6 @@ Image.%: Image ...@@ -127,17 +126,6 @@ Image.%: Image
zinstall install: zinstall install:
$(Q)$(MAKE) $(build)=$(boot) $@ $(Q)$(MAKE) $(build)=$(boot) $@
%.dtb: scripts
$(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
PHONY += dtbs dtbs_install
dtbs: prepare scripts
$(Q)$(MAKE) $(build)=$(boot)/dts
dtbs_install:
$(Q)$(MAKE) $(dtbinst)=$(boot)/dts
PHONY += vdso_install PHONY += vdso_install
vdso_install: vdso_install:
$(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@ $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@
...@@ -145,7 +133,6 @@ vdso_install: ...@@ -145,7 +133,6 @@ vdso_install:
# We use MRPROPER_FILES and CLEAN_FILES now # We use MRPROPER_FILES and CLEAN_FILES now
archclean: archclean:
$(Q)$(MAKE) $(clean)=$(boot) $(Q)$(MAKE) $(clean)=$(boot)
$(Q)$(MAKE) $(clean)=$(boot)/dts
# We need to generate vdso-offsets.h before compiling certain files in kernel/. # We need to generate vdso-offsets.h before compiling certain files in kernel/.
# In order to do that, we should use the archprepare target, but we can't since # In order to do that, we should use the archprepare target, but we can't since
...@@ -160,8 +147,6 @@ vdso_prepare: prepare0 ...@@ -160,8 +147,6 @@ vdso_prepare: prepare0
define archhelp define archhelp
echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)' echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)'
echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
echo '* dtbs - Build device tree blobs for enabled boards'
echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'
echo ' install - Install uncompressed kernel' echo ' install - Install uncompressed kernel'
echo ' zinstall - Install compressed kernel' echo ' zinstall - Install compressed kernel'
echo ' Install using (your) ~/bin/installkernel or' echo ' Install using (your) ~/bin/installkernel or'
......
...@@ -40,9 +40,7 @@ boot := arch/$(ARCH)/boot ...@@ -40,9 +40,7 @@ boot := arch/$(ARCH)/boot
DTB:=$(subst dtbImage.,,$(filter dtbImage.%, $(MAKECMDGOALS))) DTB:=$(subst dtbImage.,,$(filter dtbImage.%, $(MAKECMDGOALS)))
export DTB export DTB
ifneq ($(DTB),)
core-y += $(boot)/dts/ core-y += $(boot)/dts/
endif
# With make 3.82 we cannot mix normal and wildcard targets # With make 3.82 we cannot mix normal and wildcard targets
......
...@@ -31,21 +31,12 @@ CROSS_COMPILE := h8300-unknown-linux- ...@@ -31,21 +31,12 @@ CROSS_COMPILE := h8300-unknown-linux-
endif endif
core-y += arch/$(ARCH)/kernel/ arch/$(ARCH)/mm/ core-y += arch/$(ARCH)/kernel/ arch/$(ARCH)/mm/
ifneq '$(CONFIG_H8300_BUILTIN_DTB)' '""' core-y += arch/$(ARCH)/boot/dts/
core-y += arch/h8300/boot/dts/
endif
libs-y += arch/$(ARCH)/lib/ libs-y += arch/$(ARCH)/lib/
boot := arch/h8300/boot boot := arch/h8300/boot
%.dtb %.dtb.S %.dtb.o: | scripts
$(Q)$(MAKE) $(build)=arch/h8300/boot/dts arch/h8300/boot/dts/$@
PHONY += dtbs
dtbs: scripts
$(Q)$(MAKE) $(build)=arch/h8300/boot/dts
archmrproper: archmrproper:
archclean: archclean:
......
...@@ -65,9 +65,7 @@ boot := arch/microblaze/boot ...@@ -65,9 +65,7 @@ boot := arch/microblaze/boot
# Are we making a simpleImage.<boardname> target? If so, crack out the boardname # Are we making a simpleImage.<boardname> target? If so, crack out the boardname
DTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS))) DTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS)))
ifneq ($(DTB),) core-y += $(boot)/dts/
core-y += $(boot)/dts/
endif
# defines filename extension depending memory management type # defines filename extension depending memory management type
ifeq ($(CONFIG_MMU),) ifeq ($(CONFIG_MMU),)
......
# SPDX-License-Identifier: GPL-2.0 # SPDX-License-Identifier: GPL-2.0
# #
ifneq ($(DTB),)
obj-y += linked_dtb.o obj-y += linked_dtb.o
# Ensure system.dtb exists # Ensure system.dtb exists
...@@ -11,6 +12,7 @@ ifneq ($(DTB),system) ...@@ -11,6 +12,7 @@ ifneq ($(DTB),system)
$(obj)/system.dtb: $(obj)/$(DTB).dtb $(obj)/system.dtb: $(obj)/$(DTB).dtb
$(call if_changed,cp) $(call if_changed,cp)
endif endif
endif
quiet_cmd_cp = CP $< $@$2 quiet_cmd_cp = CP $< $@$2
cmd_cp = cat $< >$@$2 || (rm -f $@ && echo false) cmd_cp = cat $< >$@$2 || (rm -f $@ && echo false)
......
...@@ -407,18 +407,7 @@ endif ...@@ -407,18 +407,7 @@ endif
CLEAN_FILES += vmlinux.32 vmlinux.64 CLEAN_FILES += vmlinux.32 vmlinux.64
# device-trees # device-trees
core-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/ core-y += arch/mips/boot/dts/
%.dtb %.dtb.S %.dtb.o: | scripts
$(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@
PHONY += dtbs
dtbs: scripts
$(Q)$(MAKE) $(build)=arch/mips/boot/dts
PHONY += dtbs_install
dtbs_install:
$(Q)$(MAKE) $(dtbinst)=arch/mips/boot/dts
archprepare: archprepare:
ifdef CONFIG_MIPS32_N32 ifdef CONFIG_MIPS32_N32
...@@ -461,8 +450,6 @@ define archhelp ...@@ -461,8 +450,6 @@ define archhelp
echo ' uImage.lzma - U-Boot image (lzma)' echo ' uImage.lzma - U-Boot image (lzma)'
echo ' uImage.lzo - U-Boot image (lzo)' echo ' uImage.lzo - U-Boot image (lzo)'
echo ' uzImage.bin - U-Boot image (self-extracting)' echo ' uzImage.bin - U-Boot image (self-extracting)'
echo ' dtbs - Device-tree blobs for enabled boards'
echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'
echo echo
echo ' These will be default as appropriate for a configured platform.' echo ' These will be default as appropriate for a configured platform.'
echo echo
......
...@@ -43,7 +43,7 @@ CHECKFLAGS += -D__NDS32_EB__ ...@@ -43,7 +43,7 @@ CHECKFLAGS += -D__NDS32_EB__
endif endif
boot := arch/nds32/boot boot := arch/nds32/boot
core-$(BUILTIN_DTB) += $(boot)/dts/ core-y += $(boot)/dts/
.PHONY: FORCE .PHONY: FORCE
......
...@@ -56,12 +56,6 @@ all: vmImage ...@@ -56,12 +56,6 @@ all: vmImage
archclean: archclean:
$(Q)$(MAKE) $(clean)=$(nios2-boot) $(Q)$(MAKE) $(clean)=$(nios2-boot)
%.dtb %.dtb.S %.dtb.o: | scripts
$(Q)$(MAKE) $(build)=$(nios2-boot)/dts $(nios2-boot)/dts/$@
dtbs:
$(Q)$(MAKE) $(build)=$(nios2-boot)/dts
$(BOOT_TARGETS): vmlinux $(BOOT_TARGETS): vmlinux
$(Q)$(MAKE) $(build)=$(nios2-boot) $(nios2-boot)/$@ $(Q)$(MAKE) $(build)=$(nios2-boot) $(nios2-boot)/$@
...@@ -74,5 +68,4 @@ define archhelp ...@@ -74,5 +68,4 @@ define archhelp
echo ' (your) ~/bin/$(INSTALLKERNEL) or' echo ' (your) ~/bin/$(INSTALLKERNEL) or'
echo ' (distribution) /sbin/$(INSTALLKERNEL) or' echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
echo ' install to $$(INSTALL_PATH)' echo ' install to $$(INSTALL_PATH)'
echo ' dtbs - Build device tree blobs for enabled boards'
endef endef
...@@ -31,9 +31,5 @@ $(obj)/zImage: $(obj)/compressed/vmlinux FORCE ...@@ -31,9 +31,5 @@ $(obj)/zImage: $(obj)/compressed/vmlinux FORCE
$(obj)/compressed/vmlinux: $(obj)/vmlinux.gz FORCE $(obj)/compressed/vmlinux: $(obj)/vmlinux.gz FORCE
$(Q)$(MAKE) $(build)=$(obj)/compressed $@ $(Q)$(MAKE) $(build)=$(obj)/compressed $@
targets += $(dtb-y)
$(obj)/dtbs: $(addprefix $(obj)/, $(dtb-y))
install: install:
sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)" sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"
...@@ -293,9 +293,6 @@ $(BOOT_TARGETS2): vmlinux ...@@ -293,9 +293,6 @@ $(BOOT_TARGETS2): vmlinux
bootwrapper_install: bootwrapper_install:
$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@) $(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
%.dtb: scripts
$(Q)$(MAKE) $(build)=$(boot)/dts $(patsubst %,$(boot)/dts/%,$@)
# Used to create 'merged defconfigs' # Used to create 'merged defconfigs'
# To use it $(call) it with the first argument as the base defconfig # To use it $(call) it with the first argument as the base defconfig
# and the second argument as a space separated list of .config files to merge, # and the second argument as a space separated list of .config files to merge,
......
...@@ -84,28 +84,18 @@ LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) ...@@ -84,28 +84,18 @@ LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
head-y := arch/xtensa/kernel/head.o head-y := arch/xtensa/kernel/head.o
core-y += arch/xtensa/kernel/ arch/xtensa/mm/ core-y += arch/xtensa/kernel/ arch/xtensa/mm/
core-y += $(buildvar) $(buildplf) core-y += $(buildvar) $(buildplf)
core-y += arch/xtensa/boot/dts/
libs-y += arch/xtensa/lib/ $(LIBGCC) libs-y += arch/xtensa/lib/ $(LIBGCC)
drivers-$(CONFIG_OPROFILE) += arch/xtensa/oprofile/ drivers-$(CONFIG_OPROFILE) += arch/xtensa/oprofile/
ifneq ($(CONFIG_BUILTIN_DTB),"")
core-$(CONFIG_OF) += arch/xtensa/boot/dts/
endif
boot := arch/xtensa/boot boot := arch/xtensa/boot
all Image zImage uImage: vmlinux all Image zImage uImage: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $@ $(Q)$(MAKE) $(build)=$(boot) $@
%.dtb:
$(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
dtbs: scripts
$(Q)$(MAKE) $(build)=$(boot)/dts
define archhelp define archhelp
@echo '* Image - Kernel ELF image with reset vector' @echo '* Image - Kernel ELF image with reset vector'
@echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)' @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
@echo '* uImage - U-Boot wrapped image' @echo '* uImage - U-Boot wrapped image'
@echo ' dtbs - Build device tree blobs for enabled boards'
endef endef
...@@ -39,8 +39,7 @@ build_unifdef: $(obj)/unifdef ...@@ -39,8 +39,7 @@ build_unifdef: $(obj)/unifdef
subdir-$(CONFIG_MODVERSIONS) += genksyms subdir-$(CONFIG_MODVERSIONS) += genksyms
subdir-y += mod subdir-y += mod
subdir-$(CONFIG_SECURITY_SELINUX) += selinux subdir-$(CONFIG_SECURITY_SELINUX) += selinux
subdir-$(CONFIG_DTC) += dtc
subdir-$(CONFIG_GDB_SCRIPTS) += gdb subdir-$(CONFIG_GDB_SCRIPTS) += gdb
# Let clean descend into subdirs # Let clean descend into subdirs
subdir- += basic kconfig package gcc-plugins subdir- += basic dtc kconfig package gcc-plugins
...@@ -283,7 +283,7 @@ $(obj)/%.dtb.S: $(obj)/%.dtb FORCE ...@@ -283,7 +283,7 @@ $(obj)/%.dtb.S: $(obj)/%.dtb FORCE
quiet_cmd_dtc = DTC $@ quiet_cmd_dtc = DTC $@
cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \ cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \ $(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
$(DTC) -O dtb -o $@ -b 0 \ $(DTC) -O dtb -o $@ -b 0 \
$(addprefix -i,$(dir $<) $(DTC_INCLUDE)) $(DTC_FLAGS) \ $(addprefix -i,$(dir $<) $(DTC_INCLUDE)) $(DTC_FLAGS) \
-d $(depfile).dtc.tmp $(dtc-tmp) ; \ -d $(depfile).dtc.tmp $(dtc-tmp) ; \
......
# SPDX-License-Identifier: GPL-2.0 # SPDX-License-Identifier: GPL-2.0
# scripts/dtc makefile # scripts/dtc makefile
hostprogs-y := dtc hostprogs-$(CONFIG_DTC) := dtc
always := $(hostprogs-y) always := $(hostprogs-y)
dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \ dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
......
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