1# SPDX-License-Identifier: GPL-2.0 2# Backward compatibility 3asflags-y += $(EXTRA_AFLAGS) 4ccflags-y += $(EXTRA_CFLAGS) 5cppflags-y += $(EXTRA_CPPFLAGS) 6ldflags-y += $(EXTRA_LDFLAGS) 7 8# 9# flags that take effect in sub directories 10export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y) 11export KBUILD_SUBDIR_CCFLAGS := $(KBUILD_SUBDIR_CCFLAGS) $(subdir-ccflags-y) 12 13# Figure out what we need to build from the various variables 14# =========================================================================== 15 16# When an object is listed to be built compiled-in and modular, 17# only build the compiled-in version 18 19obj-m := $(filter-out $(obj-y),$(obj-m)) 20 21# Libraries are always collected in one lib file. 22# Filter out objects already built-in 23 24lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m))) 25 26 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) 33 34# Determine modorder. 35# Unfortunately, we don't have information about ordering between -y 36# and -m subdirs. Just put -y's first. 37modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko)) 38 39__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) 40subdir-y += $(__subdir-y) 41__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m))) 42subdir-m += $(__subdir-m) 43obj-y := $(patsubst %/, %/built-in.o, $(obj-y)) 44obj-m := $(filter-out %/, $(obj-m)) 45 46# Subdirectories we need to descend into 47 48subdir-ym := $(sort $(subdir-y) $(subdir-m)) 49 50# if $(foo-objs) exists, foo.o is a composite object 51multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m)))) 52multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m)))) 53multi-used := $(multi-used-y) $(multi-used-m) 54single-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m))) 55 56# Build list of the parts of our composite objects, our composite 57# objects depend on those (obviously) 58multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y))) 59multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y))) 60multi-objs := $(multi-objs-y) $(multi-objs-m) 61 62# $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to 63# tell kbuild to descend 64subdir-obj-y := $(filter %/built-in.o, $(obj-y)) 65 66# $(obj-dirs) is a list of directories that contain object files 67obj-dirs := $(dir $(multi-objs) $(obj-y)) 68 69# Replace multi-part objects by their individual parts, look at local dir only 70real-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) 71real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m))) 72 73# Add subdir path 74 75extra-y := $(addprefix $(obj)/,$(extra-y)) 76always := $(addprefix $(obj)/,$(always)) 77targets := $(addprefix $(obj)/,$(targets)) 78modorder := $(addprefix $(obj)/,$(modorder)) 79obj-y := $(addprefix $(obj)/,$(obj-y)) 80obj-m := $(addprefix $(obj)/,$(obj-m)) 81lib-y := $(addprefix $(obj)/,$(lib-y)) 82subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y)) 83real-objs-y := $(addprefix $(obj)/,$(real-objs-y)) 84real-objs-m := $(addprefix $(obj)/,$(real-objs-m)) 85single-used-m := $(addprefix $(obj)/,$(single-used-m)) 86multi-used-y := $(addprefix $(obj)/,$(multi-used-y)) 87multi-used-m := $(addprefix $(obj)/,$(multi-used-m)) 88multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y)) 89multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m)) 90subdir-ym := $(addprefix $(obj)/,$(subdir-ym)) 91obj-dirs := $(addprefix $(obj)/,$(obj-dirs)) 92 93# These flags are needed for modversions and compiling, so we define them here 94# already 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. 100name-fix = $(subst $(comma),_,$(subst -,_,$1)) 101basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))" 102modname_flags = $(if $(filter 1,$(words $(modname))),\ 103 -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))") 104 105orig_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)) 108orig_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)) 112 113# 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 116# (in this order) 117# 118ifeq ($(CONFIG_GCOV_KERNEL),y) 119_c_flags += $(if $(patsubst n%,, \ 120 $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \ 121 $(CFLAGS_GCOV)) 122endif 123 124# 125# Enable address sanitizer flags for kernel except some files or directories 126# we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE) 127# 128ifeq ($(CONFIG_KASAN),y) 129_c_flags += $(if $(patsubst n%,, \ 130 $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \ 131 $(CFLAGS_KASAN)) 132endif 133 134# If building the kernel in a separate objtree expand all occurrences 135# of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/'). 136 137ifeq ($(KBUILD_SRC),) 138__c_flags = $(_c_flags) 139__a_flags = $(_a_flags) 140__cpp_flags = $(_cpp_flags) 141else 142 143# -I$(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 = $(call flags,_cpp_flags) 150endif 151 152# Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE 153c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \ 154 $(__c_flags) $(modkern_cflags) \ 155 -D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags) 156 157a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \ 158 $(__a_flags) $(modkern_aflags) 159 160cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \ 161 $(__cpp_flags) 162 163ld_flags = $(LDFLAGS) $(ldflags-y) 164 165# Try these files in order to find the U-Boot-specific .dtsi include file 166u_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)) 171 172u_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!)) 179 180# 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) 183 184# We use the first match 185u_boot_dtsi = $(strip $(u_boot_dtsi_options_debug) \ 186 $(notdir $(firstword $(u_boot_dtsi_options)))) 187 188# Modified for U-Boot 189dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \ 190 -I$(srctree)/arch/$(ARCH)/dts \ 191 -I$(srctree)/arch/$(ARCH)/dts/include \ 192 -Iinclude \ 193 -I$(srctree)/include \ 194 -I$(srctree)/arch/$(ARCH)/include \ 195 -include $(srctree)/include/linux/kconfig.h \ 196 -D__ASSEMBLY__ \ 197 -undef -D__DTS__ 198 199# Finds the multi-part object the current object will be linked into 200modname-multi = $(sort $(foreach m,$(multi-used),\ 201 $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=)))) 202 203# Useful for describing the dependency of composite objects 204# Usage: 205# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add) 206define multi_depend 207$(foreach m, $(notdir $1), \ 208 $(eval $(obj)/$m: \ 209 $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s))))))) 210endef 211 212# LEX 213# --------------------------------------------------------------------------- 214quiet_cmd_flex = LEX $@ 215 cmd_flex = $(LEX) -o$@ -L $< 216 217$(obj)/%.lex.c: $(src)/%.l FORCE 218 $(call if_changed,flex) 219 220# YACC 221# --------------------------------------------------------------------------- 222quiet_cmd_bison = YACC $@ 223 cmd_bison = $(YACC) -o$@ -t -l $< 224 225$(obj)/%.tab.c: $(src)/%.y FORCE 226 $(call if_changed,bison) 227 228quiet_cmd_bison_h = YACC $@ 229 cmd_bison_h = $(YACC) -o/dev/null --defines=$@ -t -l $< 230 231$(obj)/%.tab.h: $(src)/%.y FORCE 232 $(call if_changed,bison_h) 233 234# Shipped files 235# =========================================================================== 236 237quiet_cmd_shipped = SHIPPED $@ 238cmd_shipped = cat $< > $@ 239 240$(obj)/%: $(src)/%_shipped 241 $(call cmd,shipped) 242 243# Commands useful for building a boot image 244# =========================================================================== 245# 246# Use as following: 247# 248# target: source(s) FORCE 249# $(if_changed,ld/objcopy/gzip) 250# 251# and add target to extra-y so that we know we have to 252# read in the saved command line 253 254# Linking 255# --------------------------------------------------------------------------- 256 257quiet_cmd_ld = LD $@ 258cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \ 259 $(filter-out FORCE,$^) -o $@ 260 261# Objcopy 262# --------------------------------------------------------------------------- 263 264quiet_cmd_objcopy = OBJCOPY $@ 265cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 266 267# Gzip 268# --------------------------------------------------------------------------- 269 270quiet_cmd_gzip = GZIP $@ 271cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \ 272 (rm -f $@ ; false) 273 274# DTC 275# --------------------------------------------------------------------------- 276 277# Generate an assembly file to wrap the output of the device tree compiler 278quiet_cmd_dt_S_dtb= DTB $@ 279# Modified for U-Boot 280cmd_dt_S_dtb= \ 281( \ 282 echo '.section .dtb.init.rodata,"a"'; \ 283 echo '.balign 16'; \ 284 echo '.global __dtb_$(subst -,_,$(*F))_begin'; \ 285 echo '__dtb_$(subst -,_,$(*F))_begin:'; \ 286 echo '.incbin "$<" '; \ 287 echo '__dtb_$(subst -,_,$(*F))_end:'; \ 288 echo '.global __dtb_$(subst -,_,$(*F))_end'; \ 289 echo '.balign 16'; \ 290) > $@ 291 292$(obj)/%.dtb.S: $(obj)/%.dtb 293 $(call cmd,dt_S_dtb) 294 295quiet_cmd_dtc = DTC $@ 296# Modified for U-Boot 297# Bring in any U-Boot-specific include at the end of the file 298cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \ 299 (cat $<; $(if $(u_boot_dtsi),echo '$(pound)include "$(u_boot_dtsi)"')) > $(pre-tmp); \ 300 $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $(pre-tmp) ; \ 301 $(DTC) -O dtb -o $@ -b 0 \ 302 -i $(dir $<) $(DTC_FLAGS) \ 303 -d $(depfile).dtc.tmp $(dtc-tmp) ; \ 304 cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile) 305 306$(obj)/%.dtb: $(src)/%.dts FORCE 307 $(call if_changed_dep,dtc) 308 309pre-tmp = $(subst $(comma),_,$(dot-target).pre.tmp) 310dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp) 311 312# DTCO 313# --------------------------------------------------------------------------- 314 315quiet_cmd_dtco = DTCO $@ 316# Rule for objects only; does not put specific u-boot include at the end 317# No generation of assembly file either 318# Modified for U-Boot 319cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \ 320 $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) - ; \ 321 $(DTC) -@ -O dtb -o $@ -b 0 \ 322 -i $(dir $<) $(DTC_FLAGS) \ 323 -d $(depfile).dtc.tmp $(dtc-tmp) ; \ 324 cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile) 325 326$(obj)/%.dtbo: $(src)/%.dts FORCE 327 $(call if_changed_dep,dtco) 328 329# Fonts 330# --------------------------------------------------------------------------- 331 332# Generate an assembly file to wrap the font data 333quiet_cmd_S_ttf= TTF $@ 334# Modified for U-Boot 335cmd_S_ttf= \ 336( \ 337 echo '.section .rodata.ttf.init,"a"'; \ 338 echo '.balign 16'; \ 339 echo '.global __ttf_$(*F)_begin'; \ 340 echo '__ttf_$(*F)_begin:'; \ 341 echo '.incbin "$<" '; \ 342 echo '__ttf_$(*F)_end:'; \ 343 echo '.global __ttf_$(*F)_end'; \ 344 echo '.balign 16'; \ 345) > $@ 346 347$(obj)/%.S: $(src)/%.ttf 348 $(call cmd,S_ttf) 349 350# EFI applications 351# A Makefile target *.efi is built as EFI application. 352# A Makefile target *_efi.S wraps *.efi as built-in EFI application. 353# --------------------------------------------------------------------------- 354 355# Generate an assembly file to wrap the EFI app 356cmd_S_efi= \ 357( \ 358 echo '.section .rodata.$*.init,"a"'; \ 359 echo '.balign 16'; \ 360 echo '.global __efi_$*_begin'; \ 361 echo '__efi_$*_begin:'; \ 362 echo '.incbin "$<" '; \ 363 echo '__efi_$*_end:'; \ 364 echo '.global __efi_$*_end'; \ 365 echo '.balign 16'; \ 366) > $@ 367 368$(obj)/%_efi.S: $(obj)/%.efi 369 $(call cmd,S_efi) 370 371quiet_cmd_efi_objcopy = OBJCOPY $@ 372cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \ 373 .dynamic -j .dynsym -j .rel* -j .rela* -j .reloc \ 374 $(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@ 375 376$(obj)/%.efi: $(obj)/%_efi.so 377 $(call cmd,efi_objcopy) 378 379quiet_cmd_efi_ld = LD $@ 380cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \ 381 -Bsymbolic -s $^ -o $@ 382 383EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS) 384 385$(obj)/efi_crt0.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_CRT0:.o=.S) 386 $(call if_changed_dep,as_o_S) 387 388$(obj)/efi_reloc.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_RELOC:.o=.c) $(recordmcount_source) FORCE 389 $(call cmd,force_checksrc) 390 $(call if_changed_rule,cc_o_c) 391 392$(obj)/%_efi.so: $(obj)/%.o $(obj)/efi_crt0.o $(obj)/efi_reloc.o 393 $(call cmd,efi_ld) 394 395# ACPI 396# --------------------------------------------------------------------------- 397quiet_cmd_acpi_c_asl= ASL $< 398cmd_acpi_c_asl= \ 399 $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -P $(UBOOTINCLUDE) -o $<.tmp $<; \ 400 iasl -p $< -tc $<.tmp $(if $(KBUILD_VERBOSE:1=), >/dev/null) && \ 401 mv $(patsubst %.asl,%.hex,$<) $@ 402 403$(obj)/dsdt.c: $(src)/dsdt.asl 404 $(call cmd,acpi_c_asl) 405 $(Q)sed -i -e "s,dsdt_aml_code,AmlCode," $@ 406 407# Bzip2 408# --------------------------------------------------------------------------- 409 410# Bzip2 and LZMA do not include size in file... so we have to fake that; 411# append the size as a 32-bit littleendian number as gzip does. 412size_append = printf $(shell \ 413dec_size=0; \ 414for F in $1; do \ 415 fsize=$$(stat -c "%s" $$F); \ 416 dec_size=$$(expr $$dec_size + $$fsize); \ 417done; \ 418printf "%08x\n" $$dec_size | \ 419 sed 's/\(..\)/\1 /g' | { \ 420 read ch0 ch1 ch2 ch3; \ 421 for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \ 422 printf '%s%03o' '\\' $$((0x$$ch)); \ 423 done; \ 424 } \ 425) 426 427quiet_cmd_bzip2 = BZIP2 $@ 428cmd_bzip2 = (cat $(filter-out FORCE,$^) | \ 429 bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ 430 (rm -f $@ ; false) 431 432# Lzma 433# --------------------------------------------------------------------------- 434 435quiet_cmd_lzma = LZMA $@ 436cmd_lzma = (cat $(filter-out FORCE,$^) | \ 437 lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ 438 (rm -f $@ ; false) 439 440quiet_cmd_lzo = LZO $@ 441cmd_lzo = (cat $(filter-out FORCE,$^) | \ 442 lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ 443 (rm -f $@ ; false) 444 445quiet_cmd_lz4 = LZ4 $@ 446cmd_lz4 = (cat $(filter-out FORCE,$^) | \ 447 lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ 448 (rm -f $@ ; false) 449 450# U-Boot mkimage 451# --------------------------------------------------------------------------- 452 453MKIMAGE := $(srctree)/scripts/mkuboot.sh 454 455# SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces 456# the number of overrides in arch makefiles 457UIMAGE_ARCH ?= $(SRCARCH) 458UIMAGE_COMPRESSION ?= $(if $(2),$(2),none) 459UIMAGE_OPTS-y ?= 460UIMAGE_TYPE ?= kernel 461UIMAGE_LOADADDR ?= arch_must_set_this 462UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR) 463UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)' 464UIMAGE_IN ?= $< 465UIMAGE_OUT ?= $@ 466 467quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT) 468 cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \ 469 -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \ 470 -T $(UIMAGE_TYPE) \ 471 -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \ 472 -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT) 473 474# XZ 475# --------------------------------------------------------------------------- 476# Use xzkern to compress the kernel image and xzmisc to compress other things. 477# 478# xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage 479# of the kernel decompressor. A BCJ filter is used if it is available for 480# the target architecture. xzkern also appends uncompressed size of the data 481# using size_append. The .xz format has the size information available at 482# the end of the file too, but it's in more complex format and it's good to 483# avoid changing the part of the boot code that reads the uncompressed size. 484# Note that the bytes added by size_append will make the xz tool think that 485# the file is corrupt. This is expected. 486# 487# xzmisc doesn't use size_append, so it can be used to create normal .xz 488# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very 489# big dictionary would increase the memory usage too much in the multi-call 490# decompression mode. A BCJ filter isn't used either. 491quiet_cmd_xzkern = XZKERN $@ 492cmd_xzkern = (cat $(filter-out FORCE,$^) | \ 493 sh $(srctree)/scripts/xz_wrap.sh && \ 494 $(call size_append, $(filter-out FORCE,$^))) > $@ || \ 495 (rm -f $@ ; false) 496 497quiet_cmd_xzmisc = XZMISC $@ 498cmd_xzmisc = (cat $(filter-out FORCE,$^) | \ 499 xz --check=crc32 --lzma2=dict=1MiB) > $@ || \ 500 (rm -f $@ ; false) 501 502# Additional commands for U-Boot 503# 504# mkimage 505# --------------------------------------------------------------------------- 506MKIMAGEOUTPUT ?= /dev/null 507quiet_cmd_mkimage = MKIMAGE $@ 508cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 509 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 510 511# fdtgrep 512# --------------------------------------------------------------------------- 513# Pass the original device tree file through fdtgrep twice. The first pass 514# removes any unwanted nodes (i.e. those which don't have the 515# 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second 516# pass removes various unused properties from the remaining nodes. 517# The output is typically a much smaller device tree file. 518ifeq ($(CONFIG_TPL_BUILD),y) 519fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-tpl 520else 521fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-spl 522endif 523quiet_cmd_fdtgrep = FDTGREP $@ 524 cmd_fdtgrep = $(objtree)/tools/fdtgrep $(fdtgrep_props) -RT $< \ 525 -n /chosen -n /config -O dtb | \ 526 $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \ 527 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS))) 528