1 # SPDX-License-Identifier: GPL-2.0
2 # Backward compatibility
3 asflags-y += $(EXTRA_AFLAGS)
4 ccflags-y += $(EXTRA_CFLAGS)
5 cppflags-y += $(EXTRA_CPPFLAGS)
6 ldflags-y += $(EXTRA_LDFLAGS)
9 # flags that take effect in sub directories
10 export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y)
11 export KBUILD_SUBDIR_CCFLAGS := $(KBUILD_SUBDIR_CCFLAGS) $(subdir-ccflags-y)
13 # Figure out what we need to build from the various variables
14 # ===========================================================================
16 # When an object is listed to be built compiled-in and modular,
17 # only build the compiled-in version
19 obj-m := $(filter-out $(obj-y),$(obj-m))
21 # Libraries are always collected in one lib file.
22 # Filter out objects already built-in
24 lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
27 # Handle objects in subdirs
28 # ---------------------------------------------------------------------------
29 # o if we encounter foo/ in $(obj-y), replace it by foo/built-in.o
30 # and add the directory to the list of dirs to descend into: $(subdir-y)
31 # o if we encounter foo/ in $(obj-m), remove it from $(obj-m)
32 # and add the directory to the list of dirs to descend into: $(subdir-m)
35 # Unfortunately, we don't have information about ordering between -y
36 # and -m subdirs. Just put -y's first.
37 modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
39 __subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
40 subdir-y += $(__subdir-y)
41 __subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
42 subdir-m += $(__subdir-m)
43 obj-y := $(patsubst %/, %/built-in.o, $(obj-y))
44 obj-m := $(filter-out %/, $(obj-m))
46 # Subdirectories we need to descend into
48 subdir-ym := $(sort $(subdir-y) $(subdir-m))
50 # if $(foo-objs) exists, foo.o is a composite object
51 multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
52 multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
53 multi-used := $(multi-used-y) $(multi-used-m)
54 single-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m)))
56 # Build list of the parts of our composite objects, our composite
57 # objects depend on those (obviously)
58 multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y)))
59 multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y)))
60 multi-objs := $(multi-objs-y) $(multi-objs-m)
62 # $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to
63 # tell kbuild to descend
64 subdir-obj-y := $(filter %/built-in.o, $(obj-y))
66 # $(obj-dirs) is a list of directories that contain object files
67 obj-dirs := $(dir $(multi-objs) $(obj-y))
69 # Replace multi-part objects by their individual parts, look at local dir only
70 real-objs-y := $(foreach m, $(filter-out $(subdir-obj-y), $(obj-y)), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m))) $(extra-y)
71 real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m)))
75 extra-y := $(addprefix $(obj)/,$(extra-y))
76 always := $(addprefix $(obj)/,$(always))
77 targets := $(addprefix $(obj)/,$(targets))
78 modorder := $(addprefix $(obj)/,$(modorder))
79 obj-y := $(addprefix $(obj)/,$(obj-y))
80 obj-m := $(addprefix $(obj)/,$(obj-m))
81 lib-y := $(addprefix $(obj)/,$(lib-y))
82 subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y))
83 real-objs-y := $(addprefix $(obj)/,$(real-objs-y))
84 real-objs-m := $(addprefix $(obj)/,$(real-objs-m))
85 single-used-m := $(addprefix $(obj)/,$(single-used-m))
86 multi-used-y := $(addprefix $(obj)/,$(multi-used-y))
87 multi-used-m := $(addprefix $(obj)/,$(multi-used-m))
88 multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y))
89 multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m))
90 subdir-ym := $(addprefix $(obj)/,$(subdir-ym))
91 obj-dirs := $(addprefix $(obj)/,$(obj-dirs))
93 # These flags are needed for modversions and compiling, so we define them here
95 # $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will
96 # end up in (or would, if it gets compiled in)
97 # Note: Files that end up in two or more modules are compiled without the
98 # KBUILD_MODNAME definition. The reason is that any made-up name would
99 # differ in different configs.
100 name-fix = $(subst $(comma),_,$(subst -,_,$1))
101 basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))"
102 modname_flags = $(if $(filter 1,$(words $(modname))),\
103 -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
105 orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
106 $(ccflags-y) $(CFLAGS_$(basetarget).o)
107 _c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
108 orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
109 $(asflags-y) $(AFLAGS_$(basetarget).o)
110 _a_flags = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags))
111 _cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
114 # Enable gcov profiling flags for a file, directory or for all files depending
115 # on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL
118 ifeq ($(CONFIG_GCOV_KERNEL),y)
119 _c_flags += $(if $(patsubst n%,, \
120 $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
125 # Enable address sanitizer flags for kernel except some files or directories
126 # we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE)
128 ifeq ($(CONFIG_KASAN),y)
129 _c_flags += $(if $(patsubst n%,, \
130 $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
134 # If building the kernel in a separate objtree expand all occurrences
135 # of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
137 ifeq ($(KBUILD_SRC),)
138 __c_flags = $(_c_flags)
139 __a_flags = $(_a_flags)
140 __cpp_flags = $(_cpp_flags)
143 # -I$(obj) locates generated .h files
144 # $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files
145 # and locates generated .h files
146 # FIXME: Replace both with specific CFLAGS* statements in the makefiles
147 __c_flags = $(call addtree,-I$(obj)) $(call flags,_c_flags)
148 __a_flags = $(call flags,_a_flags)
149 __cpp_flags = $(call flags,_cpp_flags)
152 # Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE
153 c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
154 $(__c_flags) $(modkern_cflags) \
155 -D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags)
157 a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
158 $(__a_flags) $(modkern_aflags)
160 cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
163 ld_flags = $(LDFLAGS) $(ldflags-y)
165 # Try these files in order to find the U-Boot-specific .dtsi include file
166 u_boot_dtsi_options = $(strip $(wildcard $(dir $<)$(basename $(notdir $<))-u-boot.dtsi) \
167 $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi) \
168 $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi) \
169 $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi) \
170 $(wildcard $(dir $<)u-boot.dtsi))
172 u_boot_dtsi_options_raw = $(warning Automatic .dtsi inclusion: options: \
173 $(dir $<)$(basename $(notdir $<))-u-boot.dtsi \
174 $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi \
175 $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi \
176 $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi \
177 $(dir $<)u-boot.dtsi ... \
178 found: $(if $(u_boot_dtsi_options),"$(u_boot_dtsi_options)",nothing!))
180 # Uncomment for debugging
181 # This shows all the files that were considered and the one that we chose.
182 # u_boot_dtsi_options_debug = $(u_boot_dtsi_options_raw)
184 # We use the first match
185 u_boot_dtsi = $(strip $(u_boot_dtsi_options_debug) \
186 $(notdir $(firstword $(u_boot_dtsi_options))))
188 # Modified for U-Boot
189 dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
190 -I$(srctree)/arch/$(ARCH)/dts \
191 -I$(srctree)/arch/$(ARCH)/dts/include \
193 -I$(srctree)/include \
194 -I$(srctree)/arch/$(ARCH)/include \
195 -include $(srctree)/include/linux/kconfig.h \
199 # Finds the multi-part object the current object will be linked into
200 modname-multi = $(sort $(foreach m,$(multi-used),\
201 $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
203 # Useful for describing the dependency of composite objects
205 # $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
207 $(foreach m, $(notdir $1), \
209 $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
213 # ---------------------------------------------------------------------------
214 quiet_cmd_flex = LEX $@
215 cmd_flex = $(LEX) -o$@ -L $<
217 .PRECIOUS: $(obj)/%.lex.c
218 $(obj)/%.lex.c: $(src)/%.l FORCE
219 $(call if_changed,flex)
222 # ---------------------------------------------------------------------------
223 quiet_cmd_bison = YACC $@
224 cmd_bison = $(YACC) -o$@ -t -l $<
226 .PRECIOUS: $(obj)/%.tab.c
227 $(obj)/%.tab.c: $(src)/%.y FORCE
228 $(call if_changed,bison)
230 quiet_cmd_bison_h = YACC $@
231 cmd_bison_h = $(YACC) -o/dev/null --defines=$@ -t -l $<
233 .PRECIOUS: $(obj)/%.tab.h
234 $(obj)/%.tab.h: $(src)/%.y FORCE
235 $(call if_changed,bison_h)
238 # ===========================================================================
240 quiet_cmd_shipped = SHIPPED $@
241 cmd_shipped = cat $< > $@
243 $(obj)/%: $(src)/%_shipped
246 # Commands useful for building a boot image
247 # ===========================================================================
251 # target: source(s) FORCE
252 # $(if_changed,ld/objcopy/gzip)
254 # and add target to extra-y so that we know we have to
255 # read in the saved command line
258 # ---------------------------------------------------------------------------
261 cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \
262 $(filter-out FORCE,$^) -o $@
265 # ---------------------------------------------------------------------------
267 quiet_cmd_objcopy = OBJCOPY $@
268 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
271 # ---------------------------------------------------------------------------
273 quiet_cmd_gzip = GZIP $@
274 cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
278 # ---------------------------------------------------------------------------
280 # Generate an assembly file to wrap the output of the device tree compiler
281 quiet_cmd_dt_S_dtb= DTB $@
282 # Modified for U-Boot
285 echo '.section .dtb.init.rodata,"a"'; \
287 echo '.global __dtb_$(subst -,_,$(*F))_begin'; \
288 echo '__dtb_$(subst -,_,$(*F))_begin:'; \
289 echo '.incbin "$<" '; \
290 echo '__dtb_$(subst -,_,$(*F))_end:'; \
291 echo '.global __dtb_$(subst -,_,$(*F))_end'; \
295 $(obj)/%.dtb.S: $(obj)/%.dtb
298 quiet_cmd_dtc = DTC $@
299 # Modified for U-Boot
300 # Bring in any U-Boot-specific include at the end of the file
301 cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
302 (cat $<; $(if $(u_boot_dtsi),echo '\#include "$(u_boot_dtsi)"')) > $(pre-tmp); \
303 $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $(pre-tmp) ; \
304 $(DTC) -O dtb -o $@ -b 0 \
305 -i $(dir $<) $(DTC_FLAGS) \
306 -d $(depfile).dtc.tmp $(dtc-tmp) ; \
307 cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
309 $(obj)/%.dtb: $(src)/%.dts FORCE
310 $(call if_changed_dep,dtc)
312 pre-tmp = $(subst $(comma),_,$(dot-target).pre.tmp)
313 dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
316 # ---------------------------------------------------------------------------
318 quiet_cmd_dtco = DTCO $@
319 # Rule for objects only; does not put specific u-boot include at the end
320 # No generation of assembly file either
321 # Modified for U-Boot
322 cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
323 $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) - ; \
324 $(DTC) -@ -O dtb -o $@ -b 0 \
325 -i $(dir $<) $(DTC_FLAGS) \
326 -d $(depfile).dtc.tmp $(dtc-tmp) ; \
327 cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
329 $(obj)/%.dtbo: $(src)/%.dts FORCE
330 $(call if_changed_dep,dtco)
333 # ---------------------------------------------------------------------------
335 # Generate an assembly file to wrap the font data
336 quiet_cmd_S_ttf= TTF $@
337 # Modified for U-Boot
340 echo '.section .rodata.ttf.init,"a"'; \
342 echo '.global __ttf_$(*F)_begin'; \
343 echo '__ttf_$(*F)_begin:'; \
344 echo '.incbin "$<" '; \
345 echo '__ttf_$(*F)_end:'; \
346 echo '.global __ttf_$(*F)_end'; \
350 $(obj)/%.S: $(src)/%.ttf
354 # A Makefile target *.efi is built as EFI application.
355 # A Makefile target *_efi.S wraps *.efi as built-in EFI application.
356 # ---------------------------------------------------------------------------
358 # Generate an assembly file to wrap the EFI app
361 echo '.section .rodata.$*.init,"a"'; \
363 echo '.global __efi_$*_begin'; \
364 echo '__efi_$*_begin:'; \
365 echo '.incbin "$<" '; \
366 echo '__efi_$*_end:'; \
367 echo '.global __efi_$*_end'; \
371 $(obj)/%_efi.S: $(obj)/%.efi
374 quiet_cmd_efi_objcopy = OBJCOPY $@
375 cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \
376 .dynamic -j .dynsym -j .rel* -j .rela* -j .reloc \
377 $(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@
379 $(obj)/%.efi: $(obj)/%_efi.so
380 $(call cmd,efi_objcopy)
382 quiet_cmd_efi_ld = LD $@
383 cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \
386 EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)
388 $(obj)/efi_crt0.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_CRT0:.o=.S)
389 $(call if_changed_dep,as_o_S)
391 $(obj)/efi_reloc.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_RELOC:.o=.c) $(recordmcount_source) FORCE
392 $(call cmd,force_checksrc)
393 $(call if_changed_rule,cc_o_c)
395 $(obj)/%_efi.so: $(obj)/%.o $(obj)/efi_crt0.o $(obj)/efi_reloc.o
399 # ---------------------------------------------------------------------------
400 quiet_cmd_acpi_c_asl= ASL $<
402 $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -P $(UBOOTINCLUDE) -o $<.tmp $<; \
403 iasl -p $< -tc $<.tmp $(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
404 mv $(patsubst %.asl,%.hex,$<) $@
406 $(obj)/dsdt.c: $(src)/dsdt.asl
407 $(call cmd,acpi_c_asl)
410 # ---------------------------------------------------------------------------
412 # Bzip2 and LZMA do not include size in file... so we have to fake that;
413 # append the size as a 32-bit littleendian number as gzip does.
414 size_append = printf $(shell \
417 fsize=$$(stat -c "%s" $$F); \
418 dec_size=$$(expr $$dec_size + $$fsize); \
420 printf "%08x\n" $$dec_size | \
421 sed 's/\(..\)/\1 /g' | { \
422 read ch0 ch1 ch2 ch3; \
423 for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \
424 printf '%s%03o' '\\' $$((0x$$ch)); \
429 quiet_cmd_bzip2 = BZIP2 $@
430 cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
431 bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
435 # ---------------------------------------------------------------------------
437 quiet_cmd_lzma = LZMA $@
438 cmd_lzma = (cat $(filter-out FORCE,$^) | \
439 lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
442 quiet_cmd_lzo = LZO $@
443 cmd_lzo = (cat $(filter-out FORCE,$^) | \
444 lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
447 quiet_cmd_lz4 = LZ4 $@
448 cmd_lz4 = (cat $(filter-out FORCE,$^) | \
449 lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
453 # ---------------------------------------------------------------------------
455 MKIMAGE := $(srctree)/scripts/mkuboot.sh
457 # SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
458 # the number of overrides in arch makefiles
459 UIMAGE_ARCH ?= $(SRCARCH)
460 UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
462 UIMAGE_TYPE ?= kernel
463 UIMAGE_LOADADDR ?= arch_must_set_this
464 UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
465 UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)'
469 quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT)
470 cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
471 -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
473 -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
474 -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT)
477 # ---------------------------------------------------------------------------
478 # Use xzkern to compress the kernel image and xzmisc to compress other things.
480 # xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage
481 # of the kernel decompressor. A BCJ filter is used if it is available for
482 # the target architecture. xzkern also appends uncompressed size of the data
483 # using size_append. The .xz format has the size information available at
484 # the end of the file too, but it's in more complex format and it's good to
485 # avoid changing the part of the boot code that reads the uncompressed size.
486 # Note that the bytes added by size_append will make the xz tool think that
487 # the file is corrupt. This is expected.
489 # xzmisc doesn't use size_append, so it can be used to create normal .xz
490 # files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
491 # big dictionary would increase the memory usage too much in the multi-call
492 # decompression mode. A BCJ filter isn't used either.
493 quiet_cmd_xzkern = XZKERN $@
494 cmd_xzkern = (cat $(filter-out FORCE,$^) | \
495 sh $(srctree)/scripts/xz_wrap.sh && \
496 $(call size_append, $(filter-out FORCE,$^))) > $@ || \
499 quiet_cmd_xzmisc = XZMISC $@
500 cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
501 xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
504 # Additional commands for U-Boot
507 # ---------------------------------------------------------------------------
508 MKIMAGEOUTPUT ?= /dev/null
509 quiet_cmd_mkimage = MKIMAGE $@
510 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
511 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
514 # ---------------------------------------------------------------------------
515 # Pass the original device tree file through fdtgrep twice. The first pass
516 # removes any unwanted nodes (i.e. those which don't have the
517 # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
518 # pass removes various unused properties from the remaining nodes.
519 # The output is typically a much smaller device tree file.
520 ifeq ($(CONFIG_TPL_BUILD),y)
521 fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-tpl
523 fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-spl
525 quiet_cmd_fdtgrep = FDTGREP $@
526 cmd_fdtgrep = $(objtree)/tools/fdtgrep $(fdtgrep_props) -RT $< \
527 -n /chosen -n /config -O dtb | \
528 $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
529 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))