include/image.mk

   1 #
   2 # Copyright (C) 2006-2010 OpenWrt.org
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7
   8 override TARGET_BUILD=
   9 include $(INCLUDE_DIR)/prereq.mk
  10 include $(INCLUDE_DIR)/kernel.mk
  11 include $(INCLUDE_DIR)/host.mk
  12 include $(INCLUDE_DIR)/version.mk
  13
  14 override MAKE:=$(_SINGLE)$(SUBMAKE)
  15 override NO_TRACE_MAKE:=$(_SINGLE)$(NO_TRACE_MAKE)
  16
  17 KDIR=$(KERNEL_BUILD_DIR)
  18 DTS_DIR:=$(LINUX_DIR)/arch/$(ARCH)/boot/dts/
  19
  20 IMG_PREFIX:=openwrt-$(if $(CONFIG_VERSION_FILENAMES),$(VERSION_NUMBER)-)$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))
  21
  22 MKFS_DEVTABLE_OPT := -D $(INCLUDE_DIR)/device_table.txt
  23
  24 ifneq ($(CONFIG_BIG_ENDIAN),)
  25   JFFS2OPTS     :=  --big-endian --squash-uids -v
  26 else
  27   JFFS2OPTS     :=  --little-endian --squash-uids -v
  28 endif
  29
  30 ifeq ($(CONFIG_JFFS2_RTIME),y)
  31   JFFS2OPTS += -X rtime
  32 endif
  33 ifeq ($(CONFIG_JFFS2_ZLIB),y)
  34   JFFS2OPTS += -X zlib
  35 endif
  36 ifeq ($(CONFIG_JFFS2_LZMA),y)
  37   JFFS2OPTS += -X lzma --compression-mode=size
  38 endif
  39 ifneq ($(CONFIG_JFFS2_RTIME),y)
  40   JFFS2OPTS += -x rtime
  41 endif
  42 ifneq ($(CONFIG_JFFS2_ZLIB),y)
  43   JFFS2OPTS += -x zlib
  44 endif
  45 ifneq ($(CONFIG_JFFS2_LZMA),y)
  46   JFFS2OPTS += -x lzma
  47 endif
  48
  49 JFFS2OPTS += $(MKFS_DEVTABLE_OPT)
  50
  51 SQUASHFS_BLOCKSIZE := $(CONFIG_TARGET_SQUASHFS_BLOCK_SIZE)k
  52 SQUASHFSOPT := -b $(SQUASHFS_BLOCKSIZE)
  53 SQUASHFSOPT += -p '/dev d 755 0 0' -p '/dev/console c 600 0 0 5 1'
  54 SQUASHFSCOMP := gzip
  55 LZMA_XZ_OPTIONS := -Xpreset 9 -Xe -Xlc 0 -Xlp 2 -Xpb 2
  56 ifeq ($(CONFIG_SQUASHFS_LZMA),y)
  57   SQUASHFSCOMP := lzma $(LZMA_XZ_OPTIONS)
  58 endif
  59 ifeq ($(CONFIG_SQUASHFS_XZ),y)
  60   ifneq ($(filter arm x86 powerpc sparc,$(LINUX_KARCH)),)
  61     BCJ_FILTER:=-Xbcj $(LINUX_KARCH)
  62   endif
  63   SQUASHFSCOMP := xz $(LZMA_XZ_OPTIONS) $(BCJ_FILTER)
  64 endif
  65
  66 JFFS2_BLOCKSIZE ?= 64k 128k
  67
  68 fs-types-$(CONFIG_TARGET_ROOTFS_SQUASHFS) += squashfs
  69 fs-types-$(CONFIG_TARGET_ROOTFS_JFFS2) += $(addprefix jffs2-,$(JFFS2_BLOCKSIZE))
  70 fs-types-$(CONFIG_TARGET_ROOTFS_JFFS2_NAND) += $(addprefix jffs2-nand-,$(NAND_BLOCKSIZE))
  71 fs-types-$(CONFIG_TARGET_ROOTFS_EXT4FS) += ext4
  72 fs-types-$(CONFIG_TARGET_ROOTFS_ISO) += iso
  73 fs-subtypes-$(CONFIG_TARGET_ROOTFS_JFFS2) += $(addsuffix -raw,$(addprefix jffs2-,$(JFFS2_BLOCKSIZE)))
  74 fs-subtypes-$(CONFIG_TARGET_ROOTFS_CPIOGZ) += cpiogz
  75 fs-subtypes-$(CONFIG_TARGET_ROOTFS_TARGZ) += targz
  76
  77 TARGET_FILESYSTEMS := $(fs-types-y)
  78
  79 FS_64K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-64k
  80 FS_128K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-128k
  81 FS_256K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-256k
  82
  83 define add_jffs2_mark
  84         echo -ne '\xde\xad\xc0\xde' >> $(1)
  85 endef
  86
  87 define toupper
  88 $(shell echo $(1) | tr '[:lower:]' '[:upper:]')
  89 endef
  90
  91 define split_args
  92 $(foreach data, \
  93         $(subst |,$(space),\
  94                 $(subst $(space),^,$(1))), \
  95         $(call $(2),$(strip $(subst ^,$(space),$(data)))))
  96 endef
  97
  98 define build_cmd
  99 $(if $(Build/$(word 1,$(1))),,$(error Missing Build/$(word 1,$(1))))
 100 $(call Build/$(word 1,$(1)),$(wordlist 2,$(words $(1)),$(1)))
 101
 102 endef
 103
 104 define concat_cmd
 105 $(call split_args,$(1),build_cmd)
 106 endef
 107
 108 # pad to 4k, 8k, 16k, 64k, 128k, 256k and add jffs2 end-of-filesystem mark
 109 define prepare_generic_squashfs
 110         $(STAGING_DIR_HOST)/bin/padjffs2 $(1) 4 8 16 64 128 256
 111 endef
 112
 113 define Image/BuildKernel/Initramfs
 114         $(call Image/Build/Initramfs)
 115 endef
 116
 117 define Image/BuildKernel/MkuImage
 118         mkimage -A $(ARCH) -O linux -T kernel -C $(1) -a $(2) -e $(3) \
 119                 -n '$(call toupper,$(ARCH)) OpenWrt Linux-$(LINUX_VERSION)' -d $(4) $(5)
 120 endef
 121
 122 define Image/BuildKernel/MkFIT
 123         $(TOPDIR)/scripts/mkits.sh \
 124                 -D $(1) -o $(KDIR)/fit-$(1).its -k $(2) $(if $(3),-d $(3)) -C $(4) -a $(5) -e $(6) \
 125                 -A $(ARCH) -v $(LINUX_VERSION)
 126         PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $(KDIR)/fit-$(1).its $(KDIR)/fit-$(1)$(7).itb
 127 endef
 128
 129 # $(1) source dts file
 130 # $(2) target dtb file
 131 # $(3) extra CPP flags
 132 # $(4) extra DTC flags
 133 define Image/BuildDTB
 134         $(CPP) -nostdinc -x assembler-with-cpp \
 135                 -I$(LINUX_DIR)/arch/$(ARCH)/boot/dts \
 136                 -I$(LINUX_DIR)/arch/$(ARCH)/boot/dts/include \
 137                 -undef -D__DTS__ $(3) \
 138                 -o $(2).tmp $(1)
 139         $(LINUX_DIR)/scripts/dtc/dtc -O dtb \
 140                 -i$(dir $(1)) $(4) \
 141                 -o $(2) $(2).tmp
 142         $(RM) $(2).tmp
 143 endef
 144
 145 define Image/mkfs/jffs2/sub
 146                 $(STAGING_DIR_HOST)/bin/mkfs.jffs2 $(3) --pad -e $(patsubst %k,%KiB,$(1)) -o $(KDIR)/root.jffs2-$(2) -d $(TARGET_DIR) -v 2>&1 1>/dev/null | awk '/^.+$$$$/'
 147                 $(call add_jffs2_mark,$(KDIR)/root.jffs2-$(2))
 148 endef
 149
 150 define Image/mkfs/jffs2/sub-raw
 151                 $(STAGING_DIR_HOST)/bin/mkfs.jffs2 $(3) -e $(patsubst %k,%KiB,$(1)) -o $(KDIR)/root.jffs2-$(2)-raw -d $(TARGET_DIR) -v 2>&1 1>/dev/null | awk '/^.+$$$$/'
 152 endef
 153
 154 define Image/mkfs/jffs2/template
 155   Image/mkfs/jffs2-$(1) = $$(call Image/mkfs/jffs2/sub,$(1),$(1),$(JFFS2OPTS))
 156   Image/mkfs/jffs2-$(1)-raw = $$(call Image/mkfs/jffs2/sub-raw,$(1),$(1),$(JFFS2OPTS))
 157
 158 endef
 159
 160 define Image/mkfs/jffs2-nand/template
 161   Image/mkfs/jffs2-nand-$(1) = \
 162         $$(call Image/mkfs/jffs2/sub, \
 163                 $(word 2,$(subst -, ,$(1))),nand-$(1), \
 164                         $(JFFS2OPTS) --no-cleanmarkers --pagesize=$(word 1,$(subst -, ,$(1))))
 165
 166 endef
 167
 168 $(eval $(foreach S,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/template,$(S))))
 169 $(eval $(foreach S,$(NAND_BLOCKSIZE),$(call Image/mkfs/jffs2-nand/template,$(S))))
 170
 171 define Image/mkfs/squashfs
 172         $(STAGING_DIR_HOST)/bin/mksquashfs4 $(TARGET_DIR) $(KDIR)/root.squashfs -nopad -noappend -root-owned -comp $(SQUASHFSCOMP) $(SQUASHFSOPT) -processors $(if $(CONFIG_PKG_BUILD_JOBS),$(CONFIG_PKG_BUILD_JOBS),1)
 173 endef
 174
 175 # $(1): board name
 176 # $(2): rootfs type
 177 # $(3): kernel image
 178 ifneq ($(CONFIG_NAND_SUPPORT),)
 179    define Image/Build/SysupgradeNAND
 180         mkdir -p "$(KDIR_TMP)/sysupgrade-$(1)/"
 181         echo "BOARD=$(1)" > "$(KDIR_TMP)/sysupgrade-$(1)/CONTROL"
 182         [ -z "$(2)" ] || $(CP) "$(KDIR)/root.$(2)" "$(KDIR_TMP)/sysupgrade-$(1)/root"
 183         [ -z "$(3)" ] || $(CP) "$(3)" "$(KDIR_TMP)/sysupgrade-$(1)/kernel"
 184         (cd "$(KDIR_TMP)"; $(TAR) cvf \
 185                 "$(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2)-sysupgrade.tar" sysupgrade-$(1))
 186    endef
 187
 188 # $(1) board name
 189 # $(2) ubinize-image options (e.g. --uboot-env and/or --kernel kernelimage)
 190 # $(3) rootfstype (e.g. squashfs or ubifs)
 191 # $(4) options to pass-through to ubinize (i.e. $($(PROFILE)_UBI_OPTS)))
 192    define Image/Build/UbinizeImage
 193         sh $(TOPDIR)/scripts/ubinize-image.sh $(2) \
 194                 "$(KDIR)/root.$(3)" \
 195                 "$(KDIR)/$(IMG_PREFIX)-$(1)-$(3)-ubinized.bin" \
 196                 $(4)
 197    endef
 198
 199 endif
 200
 201 ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
 202     define Image/mkfs/ubifs/generate
 203         $(CP) ./ubinize$(1).cfg $(KDIR)
 204         ( cd $(KDIR); \
 205                 $(STAGING_DIR_HOST)/bin/ubinize \
 206                 $(if $($(PROFILE)_UBI_OPTS), \
 207                         $(shell echo $($(PROFILE)_UBI_OPTS)), \
 208                         $(shell echo $(UBI_OPTS)) \
 209                 ) \
 210                 -o $(KDIR)/root$(1).ubi \
 211                 ubinize$(1).cfg \
 212         )
 213     endef
 214
 215     define Image/mkfs/ubifs
 216
 217         ifneq ($($(PROFILE)_UBIFS_OPTS)$(UBIFS_OPTS),)
 218                 $(STAGING_DIR_HOST)/bin/mkfs.ubifs \
 219                         $(if $($(PROFILE)_UBIFS_OPTS), \
 220                                 $(shell echo $($(PROFILE)_UBIFS_OPTS)), \
 221                                 $(shell echo $(UBIFS_OPTS)) \
 222                         ) \
 223                         $(if $(CONFIG_TARGET_UBIFS_FREE_SPACE_FIXUP),--space-fixup) \
 224                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_NONE),--force-compr=none) \
 225                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_LZO),--force-compr=lzo) \
 226                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_ZLIB),--force-compr=zlib) \
 227                         $(if $(shell echo $(CONFIG_TARGET_UBIFS_JOURNAL_SIZE)),--jrn-size=$(CONFIG_TARGET_UBIFS_JOURNAL_SIZE)) \
 228                         --squash-uids \
 229                         -o $(KDIR)/root.ubifs \
 230                         -d $(TARGET_DIR)
 231         endif
 232         $(call Image/Build,ubifs)
 233
 234         ifneq ($($(PROFILE)_UBI_OPTS)$(UBI_OPTS),)
 235                 $(if $(wildcard ./ubinize.cfg),$(call Image/mkfs/ubifs/generate,))
 236                 $(if $(wildcard ./ubinize-overlay.cfg),$(call Image/mkfs/ubifs/generate,-overlay))
 237         endif
 238         $(if $(wildcard ./ubinize.cfg),$(call Image/Build,ubi))
 239     endef
 240 endif
 241
 242 define Image/mkfs/cpiogz
 243         ( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9n >$(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz )
 244 endef
 245
 246 define Image/mkfs/targz
 247         $(TAR) -czpf $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE),-$(PROFILE))-rootfs.tar.gz --numeric-owner --owner=0 --group=0 -C $(TARGET_DIR)/ .
 248 endef
 249
 250 E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024*1024)))
 251
 252 define Image/mkfs/ext4
 253         $(STAGING_DIR_HOST)/bin/make_ext4fs \
 254                 -l $(E2SIZE) -b $(CONFIG_TARGET_EXT4_BLOCKSIZE) \
 255                 -i $(CONFIG_TARGET_EXT4_MAXINODE) \
 256                 -m $(CONFIG_TARGET_EXT4_RESERVED_PCT) \
 257                 $(if $(CONFIG_TARGET_EXT4_JOURNAL),,-J) \
 258                 $(KDIR)/root.ext4 $(TARGET_DIR)/
 259 endef
 260
 261 define Image/mkfs/prepare/default
 262         # Use symbolic permissions to avoid clobbering SUID/SGID/sticky bits
 263         - $(FIND) $(TARGET_DIR) -type f -not -perm /0100 -not -name 'ssh_host*' -not -name 'shadow' -print0 | $(XARGS) -0 chmod u+rw,g+r,o+r
 264         - $(FIND) $(TARGET_DIR) -type f -perm /0100 -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 265         - $(FIND) $(TARGET_DIR) -type d -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 266         $(INSTALL_DIR) $(TARGET_DIR)/tmp $(TARGET_DIR)/overlay
 267         chmod 1777 $(TARGET_DIR)/tmp
 268 endef
 269
 270 define Image/mkfs/prepare
 271         $(call Image/mkfs/prepare/default)
 272 endef
 273
 274
 275 define Image/Checksum
 276         ( cd ${BIN_DIR} ; \
 277                 $(FIND) -maxdepth 1 -type f \! -name 'md5sums'  -printf "%P\n" | sort | xargs $1 > $2 \
 278         )
 279 endef
 280
 281 define BuildImage/mkfs
 282   install: mkfs-$(1)
 283   .PHONY: mkfs-$(1)
 284   mkfs-$(1): mkfs_prepare
 285         $(Image/mkfs/$(1))
 286         $(call Build/mkfs/default,$(1))
 287         $(call Build/mkfs/$(1),$(1))
 288   $(KDIR)/root.$(1): mkfs-$(1)
 289
 290 endef
 291
 292 # Build commands that can be called from Device/* templates
 293 define Build/uImage
 294         mkimage -A $(LINUX_KARCH) \
 295                 -O linux -T kernel \
 296                 -C $(1) -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
 297                 -n '$(call toupper,$(LINUX_KARCH)) OpenWrt Linux-$(LINUX_VERSION)' -d $@ $@.new
 298         @mv $@.new $@
 299 endef
 300
 301 define Build/lzma
 302         $(STAGING_DIR_HOST)/bin/lzma e $@ -lc1 -lp2 -pb2 $(1) $@.new
 303         @mv $@.new $@
 304 endef
 305
 306 define Build/kernel-bin
 307         rm -f $@
 308         cp $^ $@
 309 endef
 310
 311 define Build/patch-cmdline
 312         $(STAGING_DIR_HOST)/bin/patch-cmdline $@ '$(CMDLINE)'
 313 endef
 314
 315 define Build/append-kernel
 316         dd if=$(word 1,$^) $(if $(1),bs=$(1) conv=sync) >> $@
 317 endef
 318
 319 define Build/append-rootfs
 320         dd if=$(word 2,$^) $(if $(1),bs=$(1) conv=sync) >> $@
 321 endef
 322
 323 define Build/pad-to
 324         dd if=$@ of=$@.new bs=$(1) conv=sync
 325         mv $@.new $@
 326 endef
 327
 328 define Build/pad-rootfs
 329         $(call prepare_generic_squashfs,$@ $(1))
 330 endef
 331
 332 define Build/pad-offset
 333         let \
 334                 size="$$(stat -c%s $@)" \
 335                 pad="$(word 1, $(1))" \
 336                 offset="$(word 2, $(1))" \
 337                 pad="(pad - ((size + offset) % pad)) % pad" \
 338                 newsize='size + pad'; \
 339                 dd if=$@ of=$@.new bs=$$newsize count=1 conv=sync
 340         mv $@.new $@
 341 endef
 342
 343 define Build/check-size
 344         @[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -gt "$$(stat -c%s $@)" ] || { \
 345                 echo "WARNING: Image file $@ is too big" >&2; \
 346                 rm -f $@; \
 347         }
 348 endef
 349
 350 define Build/combined-image
 351         -sh $(TOPDIR)/scripts/combined-image.sh \
 352                 "$(word 1,$^)" \
 353                 "$@" \
 354                 "$@.new"
 355         @mv $@.new $@
 356 endef
 357
 358 define Device/Init
 359   PROFILES := $(PROFILE)
 360   KERNEL:=
 361   KERNEL_INITRAMFS = $$(KERNEL)
 362   KERNEL_SIZE:=
 363   CMDLINE:=
 364
 365   IMAGE_PREFIX := $(IMG_PREFIX)-$(1)
 366   IMAGE_NAME = $$(IMAGE_PREFIX)-$$(1)-$$(2)
 367   KERNEL_PREFIX = $(1)
 368   KERNEL_SUFFIX := -kernel.bin
 369   KERNEL_IMAGE = $$(KERNEL_PREFIX)$$(KERNEL_SUFFIX)
 370   KERNEL_INITRAMFS_PREFIX = $$(IMAGE_PREFIX)-initramfs
 371   KERNEL_INITRAMFS_IMAGE = $$(KERNEL_INITRAMFS_PREFIX)$$(KERNEL_SUFFIX)
 372   KERNEL_INSTALL :=
 373   KERNEL_NAME := vmlinux
 374   KERNEL_SIZE :=
 375
 376   FILESYSTEMS := $(TARGET_FILESYSTEMS)
 377 endef
 378
 379 define Device/ExportVar
 380   $(1) : $(2):=$$($(2))
 381
 382 endef
 383 define Device/Export
 384   $(foreach var,$(DEVICE_VARS) KERNEL KERNEL_INITRAMFS,$(call Device/ExportVar,$(1),$(var)))
 385   $(1) : FILESYSTEM:=$(2)
 386 endef
 387
 388 define Device/Check
 389   _TARGET = $$(if $$(filter $(PROFILE),$$(PROFILES)),install,install-disabled)
 390   _COMPILE_TARGET = $$(if $(if $(IB),,$(CONFIG_IB)$$(filter $(PROFILE),$$(PROFILES))),compile,compile-disabled)
 391 endef
 392
 393 ifndef IB
 394 define Device/Build/initramfs
 395   $(call Device/Export,$(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE),$(1))
 396   $$(_TARGET): $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE)
 397
 398   $(KDIR)/$$(KERNEL_NAME)-initramfs: image_prepare
 399   $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE)
 400         cp $$^ $$@
 401
 402   $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/$$(KERNEL_NAME)-initramfs
 403         @rm -f $$@
 404         $$(call concat_cmd,$$(KERNEL_INITRAMFS))
 405 endef
 406 endif
 407
 408 define Device/Build/check_size
 409         @[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -gt "$$(stat -c%s $@)" ] || { \
 410                 echo "WARNING: Image file $@ is too big" >&2; \
 411                 rm -f $@; \
 412         }
 413 endef
 414
 415 define Device/Build/compile
 416   $$(_COMPILE_TARGET): $(KDIR)/$(1)
 417   $(eval $(call Device/Export,$(KDIR)/$(1)))
 418   $(KDIR)/$(1):
 419         $$(call concat_cmd,$(COMPILE/$(1)))
 420
 421 endef
 422
 423 define Device/Build/kernel
 424   _KERNEL_IMAGES += $(KDIR)/$$(KERNEL_NAME)
 425   $(KDIR)/$$(KERNEL_NAME): image_prepare
 426   $$(_TARGET): $$(if $$(KERNEL_INSTALL),$(BIN_DIR)/$$(KERNEL_IMAGE))
 427   $(BIN_DIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_IMAGE)
 428         cp $$^ $$@
 429   ifndef IB
 430     ifdef CONFIG_IB
 431       install: $(KDIR)/$$(KERNEL_IMAGE)
 432     endif
 433     $(KDIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_NAME)
 434         @rm -f $$@
 435         $$(call concat_cmd,$$(KERNEL))
 436         $$(if $$(KERNEL_SIZE),$$(call Device/Build/check_size,$$(KERNEL_SIZE)))
 437   endif
 438 endef
 439
 440 define Device/Build/image
 441   $$(_TARGET): $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2))
 442   $(eval $(call Device/Export,$(KDIR)/$(KERNEL_IMAGE),$(1)))
 443   $(eval $(call Device/Export,$(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2)),$(1)))
 444   $(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2)): $(KDIR)/$$(KERNEL_IMAGE) $(KDIR)/root.$(1)
 445         @rm -f $$@
 446         [ -f $$(word 1,$$^) -a -f $$(word 2,$$^) ]
 447         $$(call concat_cmd,$(if $(IMAGE/$(2)/$(1)),$(IMAGE/$(2)/$(1)),$(IMAGE/$(2))))
 448
 449   .IGNORE: $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2))
 450   $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2)): $(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2))
 451         cp $$^ $$@
 452
 453 endef
 454
 455 define Device/Build
 456   $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(call Device/Build/initramfs,$(1)))
 457   $(call Device/Build/kernel,$(1))
 458
 459   $$(eval $$(foreach compile,$$(COMPILE), \
 460     $$(call Device/Build/compile,$$(compile),$(1))))
 461
 462   $$(eval $$(foreach image,$$(IMAGES), \
 463     $$(foreach fs,$$(filter $(TARGET_FILESYSTEMS),$$(FILESYSTEMS)), \
 464       $$(call Device/Build/image,$$(fs),$$(image),$(1)))))
 465 endef
 466
 467 define Device
 468   $(call Device/Init,$(1))
 469   $(call Device/Default,$(1))
 470   $(call Device/Check,$(1))
 471   $(call Device/$(1),$(1))
 472   $(call Device/Build,$(1))
 473
 474 endef
 475
 476 define BuildImage
 477
 478   download:
 479   prepare:
 480   compile:
 481   clean:
 482   image_prepare:
 483
 484   ifeq ($(IB),)
 485     .PHONY: download prepare compile clean image_prepare mkfs_prepare kernel_prepare install
 486     compile:
 487                 $(call Build/Compile)
 488
 489     clean:
 490                 $(call Build/Clean)
 491
 492     image_prepare: compile
 493                 mkdir -p $(KDIR)/tmp
 494                 $(call Image/Prepare)
 495   else
 496     image_prepare:
 497                 mkdir -p $(KDIR)/tmp
 498   endif
 499
 500   mkfs_prepare: image_prepare
 501         $(call Image/mkfs/prepare)
 502
 503   kernel_prepare: mkfs_prepare
 504         $(call Image/BuildKernel)
 505         $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(if $(IB),,$(call Image/BuildKernel/Initramfs)))
 506         $(call Image/InstallKernel)
 507
 508   $(foreach device,$(TARGET_DEVICES),$(call Device,$(device)))
 509   $(foreach fs,$(TARGET_FILESYSTEMS) $(fs-subtypes-y),$(call BuildImage/mkfs,$(fs)))
 510
 511   $$(sort $$(_KERNEL_IMAGES)):
 512         @touch $$@
 513
 514   install: kernel_prepare
 515         $(foreach fs,$(TARGET_FILESYSTEMS),
 516                 $(call Image/Build,$(fs))
 517         )
 518         $(call Image/mkfs/ubifs)
 519         $(call Image/Checksum,md5sum --binary,md5sums)
 520         $(call Image/Checksum,openssl dgst -sha256,sha256sums)
 521
 522 endef