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 KDIR_TMP=$(KDIR)/tmp
  19 DTS_DIR:=$(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/dts
  20
  21 sanitize = $(call tolower,$(subst _,-,$(1)))
  22
  23 DIST_SANITIZED:=$(call sanitize,$(VERSION_DIST))
  24 EXTRA_NAME_SANITIZED=$(call sanitize,$(EXTRA_IMAGE_NAME))
  25
  26 IMG_PREFIX:=$(DIST_SANITIZED)-$(if $(CONFIG_VERSION_FILENAMES),$(VERSION_NUMBER)-)$(if $(EXTRA_NAME_SANITIZED),$(EXTRA_NAME_SANITIZED)-)$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))
  27
  28 MKFS_DEVTABLE_OPT := -D $(INCLUDE_DIR)/device_table.txt
  29
  30 ifneq ($(CONFIG_BIG_ENDIAN),)
  31   JFFS2OPTS     :=  --big-endian --squash-uids -v
  32 else
  33   JFFS2OPTS     :=  --little-endian --squash-uids -v
  34 endif
  35
  36 ifeq ($(CONFIG_JFFS2_RTIME),y)
  37   JFFS2OPTS += -X rtime
  38 endif
  39 ifeq ($(CONFIG_JFFS2_ZLIB),y)
  40   JFFS2OPTS += -X zlib
  41 endif
  42 ifeq ($(CONFIG_JFFS2_LZMA),y)
  43   JFFS2OPTS += -X lzma --compression-mode=size
  44 endif
  45 ifneq ($(CONFIG_JFFS2_RTIME),y)
  46   JFFS2OPTS += -x rtime
  47 endif
  48 ifneq ($(CONFIG_JFFS2_ZLIB),y)
  49   JFFS2OPTS += -x zlib
  50 endif
  51 ifneq ($(CONFIG_JFFS2_LZMA),y)
  52   JFFS2OPTS += -x lzma
  53 endif
  54
  55 JFFS2OPTS += $(MKFS_DEVTABLE_OPT)
  56
  57 SQUASHFS_BLOCKSIZE := $(CONFIG_TARGET_SQUASHFS_BLOCK_SIZE)k
  58 SQUASHFSOPT := -b $(SQUASHFS_BLOCKSIZE)
  59 SQUASHFSOPT += -p '/dev d 755 0 0' -p '/dev/console c 600 0 0 5 1'
  60 SQUASHFSCOMP := gzip
  61 LZMA_XZ_OPTIONS := -Xpreset 9 -Xe -Xlc 0 -Xlp 2 -Xpb 2
  62 ifeq ($(CONFIG_SQUASHFS_LZMA),y)
  63   SQUASHFSCOMP := lzma $(LZMA_XZ_OPTIONS)
  64 endif
  65 ifeq ($(CONFIG_SQUASHFS_XZ),y)
  66   ifneq ($(filter arm x86 powerpc sparc,$(LINUX_KARCH)),)
  67     BCJ_FILTER:=-Xbcj $(LINUX_KARCH)
  68   endif
  69   SQUASHFSCOMP := xz $(LZMA_XZ_OPTIONS) $(BCJ_FILTER)
  70 endif
  71
  72 JFFS2_BLOCKSIZE ?= 64k 128k
  73
  74 fs-types-$(CONFIG_TARGET_ROOTFS_SQUASHFS) += squashfs
  75 fs-types-$(CONFIG_TARGET_ROOTFS_JFFS2) += $(addprefix jffs2-,$(JFFS2_BLOCKSIZE))
  76 fs-types-$(CONFIG_TARGET_ROOTFS_JFFS2_NAND) += $(addprefix jffs2-nand-,$(NAND_BLOCKSIZE))
  77 fs-types-$(CONFIG_TARGET_ROOTFS_EXT4FS) += ext4
  78 fs-types-$(CONFIG_TARGET_ROOTFS_ISO) += iso
  79 fs-subtypes-$(CONFIG_TARGET_ROOTFS_JFFS2) += $(addsuffix -raw,$(addprefix jffs2-,$(JFFS2_BLOCKSIZE)))
  80 fs-subtypes-$(CONFIG_TARGET_ROOTFS_CPIOGZ) += cpiogz
  81 fs-subtypes-$(CONFIG_TARGET_ROOTFS_TARGZ) += targz
  82
  83 TARGET_FILESYSTEMS := $(fs-types-y)
  84
  85 FS_64K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-64k
  86 FS_128K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-128k
  87 FS_256K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-256k
  88
  89 define add_jffs2_mark
  90         echo -ne '\xde\xad\xc0\xde' >> $(1)
  91 endef
  92
  93 PROFILE_SANITIZED := $(call sanitize,$(PROFILE))
  94
  95 define split_args
  96 $(foreach data, \
  97         $(subst |,$(space),\
  98                 $(subst $(space),^,$(1))), \
  99         $(call $(2),$(strip $(subst ^,$(space),$(data)))))
 100 endef
 101
 102 define build_cmd
 103 $(if $(Build/$(word 1,$(1))),,$(error Missing Build/$(word 1,$(1))))
 104 $(call Build/$(word 1,$(1)),$(wordlist 2,$(words $(1)),$(1)))
 105
 106 endef
 107
 108 define concat_cmd
 109 $(call split_args,$(1),build_cmd)
 110 endef
 111
 112 # pad to 4k, 8k, 16k, 64k, 128k, 256k and add jffs2 end-of-filesystem mark
 113 define prepare_generic_squashfs
 114         $(STAGING_DIR_HOST)/bin/padjffs2 $(1) 4 8 16 64 128 256
 115 endef
 116
 117 define Image/BuildKernel/Initramfs
 118         $(call Image/Build/Initramfs)
 119 endef
 120
 121 define Image/BuildKernel/MkuImage
 122         mkimage -A $(ARCH) -O linux -T kernel -C $(1) -a $(2) -e $(3) \
 123                 -n '$(call toupper,$(ARCH)) OpenWrt Linux-$(LINUX_VERSION)' -d $(4) $(5)
 124 endef
 125
 126 define Image/BuildKernel/MkFIT
 127         $(TOPDIR)/scripts/mkits.sh \
 128                 -D $(1) -o $(KDIR)/fit-$(1).its -k $(2) $(if $(3),-d $(3)) -C $(4) -a $(5) -e $(6) \
 129                 -A $(ARCH) -v $(LINUX_VERSION)
 130         PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $(KDIR)/fit-$(1).its $(KDIR)/fit-$(1)$(7).itb
 131 endef
 132
 133 # $(1) source dts file
 134 # $(2) target dtb file
 135 # $(3) extra CPP flags
 136 # $(4) extra DTC flags
 137 define Image/BuildDTB
 138         $(TARGET_CROSS)cpp -nostdinc -x assembler-with-cpp \
 139                 -I$(DTS_DIR) \
 140                 -I$(DTS_DIR)/include \
 141                 -undef -D__DTS__ $(3) \
 142                 -o $(2).tmp $(1)
 143         $(LINUX_DIR)/scripts/dtc/dtc -O dtb \
 144                 -i$(dir $(1)) $(4) \
 145                 -o $(2) $(2).tmp
 146         $(RM) $(2).tmp
 147 endef
 148
 149 define Image/mkfs/jffs2/sub
 150                 $(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 '/^.+$$$$/'
 151                 $(call add_jffs2_mark,$(KDIR)/root.jffs2-$(2))
 152 endef
 153
 154 define Image/mkfs/jffs2/sub-raw
 155                 $(STAGING_DIR_HOST)/bin/mkfs.jffs2 $(3) -e $(patsubst %k,%KiB,$(1)) -o $(KDIR)/root.jffs2-$(2)-raw -d $(TARGET_DIR) -v 2>&1 1>/dev/null | awk '/^.+$$$$/'
 156 endef
 157
 158 define Image/mkfs/jffs2/template
 159   Image/mkfs/jffs2-$(1) = $$(call Image/mkfs/jffs2/sub,$(1),$(1),$(JFFS2OPTS))
 160   Image/mkfs/jffs2-$(1)-raw = $$(call Image/mkfs/jffs2/sub-raw,$(1),$(1),$(JFFS2OPTS))
 161
 162 endef
 163
 164 define Image/mkfs/jffs2-nand/template
 165   Image/mkfs/jffs2-nand-$(1) = \
 166         $$(call Image/mkfs/jffs2/sub, \
 167                 $(word 2,$(subst -, ,$(1))),nand-$(1), \
 168                         $(JFFS2OPTS) --no-cleanmarkers --pagesize=$(word 1,$(subst -, ,$(1))))
 169
 170 endef
 171
 172 $(eval $(foreach S,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/template,$(S))))
 173 $(eval $(foreach S,$(NAND_BLOCKSIZE),$(call Image/mkfs/jffs2-nand/template,$(S))))
 174
 175 define Image/mkfs/squashfs
 176         $(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) $(if $(SOURCE_DATE_EPOCH),-fixed-time $(SOURCE_DATE_EPOCH))
 177 endef
 178
 179 # $(1): board name
 180 # $(2): rootfs type
 181 # $(3): kernel image
 182 ifneq ($(CONFIG_NAND_SUPPORT),)
 183    define Image/Build/SysupgradeNAND
 184         mkdir -p "$(KDIR_TMP)/sysupgrade-$(1)/"
 185         echo "BOARD=$(1)" > "$(KDIR_TMP)/sysupgrade-$(1)/CONTROL"
 186         [ -z "$(2)" ] || $(CP) "$(KDIR)/root.$(2)" "$(KDIR_TMP)/sysupgrade-$(1)/root"
 187         [ -z "$(3)" ] || $(CP) "$(3)" "$(KDIR_TMP)/sysupgrade-$(1)/kernel"
 188         (cd "$(KDIR_TMP)"; $(TAR) cvf \
 189                 "$(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2)-sysupgrade.tar" sysupgrade-$(1) \
 190                         $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
 191         )
 192    endef
 193
 194 # $(1) board name
 195 # $(2) ubinize-image options (e.g. --uboot-env and/or --kernel kernelimage)
 196 # $(3) rootfstype (e.g. squashfs or ubifs)
 197 # $(4) options to pass-through to ubinize (i.e. $($(PROFILE)_UBI_OPTS)))
 198    define Image/Build/UbinizeImage
 199         sh $(TOPDIR)/scripts/ubinize-image.sh $(2) \
 200                 "$(KDIR)/root.$(3)" \
 201                 "$(KDIR)/$(IMG_PREFIX)-$(1)-$(3)-ubinized.bin" \
 202                 $(4)
 203    endef
 204
 205 endif
 206
 207 ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
 208     define Image/mkfs/ubifs/generate
 209         $(CP) ./ubinize$(1).cfg $(KDIR)
 210         ( cd $(KDIR); \
 211                 $(STAGING_DIR_HOST)/bin/ubinize \
 212                 $(if $($(PROFILE)_UBI_OPTS), \
 213                         $(shell echo $($(PROFILE)_UBI_OPTS)), \
 214                         $(shell echo $(UBI_OPTS)) \
 215                 ) \
 216                 -o $(KDIR)/root$(1).ubi \
 217                 ubinize$(1).cfg \
 218         )
 219     endef
 220
 221     define Image/mkfs/ubifs
 222
 223         ifneq ($($(PROFILE)_UBIFS_OPTS)$(UBIFS_OPTS),)
 224                 $(STAGING_DIR_HOST)/bin/mkfs.ubifs \
 225                         $(if $($(PROFILE)_UBIFS_OPTS), \
 226                                 $(shell echo $($(PROFILE)_UBIFS_OPTS)), \
 227                                 $(shell echo $(UBIFS_OPTS)) \
 228                         ) \
 229                         $(if $(CONFIG_TARGET_UBIFS_FREE_SPACE_FIXUP),--space-fixup) \
 230                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_NONE),--force-compr=none) \
 231                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_LZO),--force-compr=lzo) \
 232                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_ZLIB),--force-compr=zlib) \
 233                         $(if $(shell echo $(CONFIG_TARGET_UBIFS_JOURNAL_SIZE)),--jrn-size=$(CONFIG_TARGET_UBIFS_JOURNAL_SIZE)) \
 234                         --squash-uids \
 235                         -o $(KDIR)/root.ubifs \
 236                         -d $(TARGET_DIR)
 237         endif
 238         $(call Image/Build,ubifs)
 239
 240         ifneq ($($(PROFILE)_UBI_OPTS)$(UBI_OPTS),)
 241                 $(if $(wildcard ./ubinize.cfg),$(call Image/mkfs/ubifs/generate,))
 242                 $(if $(wildcard ./ubinize-overlay.cfg),$(call Image/mkfs/ubifs/generate,-overlay))
 243         endif
 244         $(if $(wildcard ./ubinize.cfg),$(call Image/Build,ubi))
 245     endef
 246 endif
 247
 248 define Image/mkfs/cpiogz
 249         ( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9n >$(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz )
 250 endef
 251
 252 define Image/mkfs/targz
 253         $(TAR) -cp --numeric-owner --owner=0 --group=0 --sort=name \
 254                 $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
 255                 -C $(TARGET_DIR)/ . | gzip -9n > $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-$(PROFILE_SANITIZED))-rootfs.tar.gz
 256 endef
 257
 258 E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024*1024)))
 259
 260 define Image/mkfs/ext4
 261         $(STAGING_DIR_HOST)/bin/make_ext4fs \
 262                 -l $(E2SIZE) -b $(CONFIG_TARGET_EXT4_BLOCKSIZE) \
 263                 -i $(CONFIG_TARGET_EXT4_MAXINODE) \
 264                 -m $(CONFIG_TARGET_EXT4_RESERVED_PCT) \
 265                 $(if $(CONFIG_TARGET_EXT4_JOURNAL),,-J) \
 266                 $(if $(SOURCE_DATE_EPOCH),-T $(SOURCE_DATE_EPOCH)) \
 267                 $(KDIR)/root.ext4 $(TARGET_DIR)/
 268 endef
 269
 270 define Image/mkfs/prepare/default
 271         # Use symbolic permissions to avoid clobbering SUID/SGID/sticky bits
 272         - $(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
 273         - $(FIND) $(TARGET_DIR) -type f -perm /0100 -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 274         - $(FIND) $(TARGET_DIR) -type d -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 275         $(INSTALL_DIR) $(TARGET_DIR)/tmp $(TARGET_DIR)/overlay
 276         chmod 1777 $(TARGET_DIR)/tmp
 277 endef
 278
 279 define Image/mkfs/prepare
 280         $(call Image/mkfs/prepare/default)
 281 endef
 282
 283
 284 define Image/Checksum
 285         ( cd ${BIN_DIR} ; \
 286                 $(FIND) -maxdepth 1 -type f \! -name 'md5sums'  -printf "%P\n" | sort | xargs $1 > $2 \
 287         )
 288 endef
 289
 290 define BuildImage/mkfs
 291   install: mkfs-$(1)
 292   .PHONY: mkfs-$(1)
 293   mkfs-$(1): kernel_prepare
 294         $(Image/mkfs/$(1))
 295         $(call Build/mkfs/default,$(1))
 296         $(call Build/mkfs/$(1),$(1))
 297   $(KDIR)/root.$(1): mkfs-$(1)
 298
 299 endef
 300
 301 # Build commands that can be called from Device/* templates
 302 define Build/uImage
 303         mkimage -A $(LINUX_KARCH) \
 304                 -O linux -T kernel \
 305                 -C $(1) -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
 306                 -n '$(call toupper,$(LINUX_KARCH)) OpenWrt Linux-$(LINUX_VERSION)' -d $@ $@.new
 307         @mv $@.new $@
 308 endef
 309
 310 define Build/netgear-chk
 311         $(STAGING_DIR_HOST)/bin/mkchkimg \
 312                 -o $@.new \
 313                 -k $@ \
 314                 -b $(NETGEAR_BOARD_ID) \
 315                 -r $(NETGEAR_REGION)
 316         mv $@.new $@
 317 endef
 318
 319 define Build/netgear-dni
 320         $(STAGING_DIR_HOST)/bin/mkdniimg \
 321                 -B $(NETGEAR_BOARD_ID) -v OpenWrt.$(REVISION) \
 322                 $(if $(NETGEAR_HW_ID),-H $(NETGEAR_HW_ID)) \
 323                 -r "$(1)" \
 324                 -i $@ -o $@.new
 325         mv $@.new $@
 326 endef
 327
 328 define Build/fit
 329         $(TOPDIR)/scripts/mkits.sh \
 330                 -D $(DEVICE_NAME) -o $@.its -k $@ \
 331                 $(if $(word 2,$(1)),-d $(word 2,$(1))) -C $(word 1,$(1)) \
 332                 -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
 333                 -A $(ARCH) -v $(LINUX_VERSION)
 334         PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $@.its $@.new
 335         @mv $@.new $@
 336 endef
 337
 338 define Build/lzma
 339         $(call Build/lzma-no-dict,-lc1 -lp2 -pb2 $(1))
 340 endef
 341
 342 define Build/lzma-no-dict
 343         $(STAGING_DIR_HOST)/bin/lzma e $@ $(1) $@.new
 344         @mv $@.new $@
 345 endef
 346
 347 define Build/gzip
 348         gzip -9n -c $@ $(1) > $@.new
 349         @mv $@.new $@
 350 endef
 351
 352 define Build/jffs2
 353         rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 && \
 354                 mkdir -p $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$$(dirname $(1)) && \
 355                 cp $@ $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$(1) && \
 356                 $(STAGING_DIR_HOST)/bin/mkfs.jffs2 --pad \
 357                         $(if $(CONFIG_BIG_ENDIAN),--big-endian,--little-endian) \
 358                         --squash-uids -v -e $(patsubst %k,%KiB,$(BLOCKSIZE)) \
 359                         -o $@.new \
 360                         -d $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 \
 361                         2>&1 1>/dev/null | awk '/^.+$$$$/' && \
 362                 $(STAGING_DIR_HOST)/bin/padjffs2 $@.new -J $(patsubst %k,,$(BLOCKSIZE))
 363         -rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/
 364         @mv $@.new $@
 365 endef
 366
 367 define Build/kernel-bin
 368         rm -f $@
 369         cp $< $@
 370 endef
 371
 372 define Build/patch-cmdline
 373         $(STAGING_DIR_HOST)/bin/patch-cmdline $@ '$(CMDLINE)'
 374 endef
 375
 376 define Build/append-kernel
 377         dd if=$(word 1,$^) $(if $(1),bs=$(1) conv=sync) >> $@
 378 endef
 379
 380 define Build/append-rootfs
 381         dd if=$(word 2,$^) $(if $(1),bs=$(1) conv=sync) >> $@
 382 endef
 383
 384 define Build/append-ubi
 385         sh $(TOPDIR)/scripts/ubinize-image.sh \
 386                 $(if $(UBOOTENV_IN_UBI),--uboot-env) \
 387                 $(if $(KERNEL_IN_UBI),--kernel $(word 1,$^)) \
 388                 $(word 2,$^) \
 389                 $@.tmp \
 390                 -p $(BLOCKSIZE) -m $(PAGESIZE) -E 5 \
 391                 $(if $(SUBPAGESIZE),-s $(SUBPAGESIZE))
 392         cat $@.tmp >> $@
 393         rm $@.tmp
 394 endef
 395
 396 define Build/pad-to
 397         dd if=$@ of=$@.new bs=$(1) conv=sync
 398         mv $@.new $@
 399 endef
 400
 401 define Build/pad-rootfs
 402         $(call prepare_generic_squashfs,$@ $(1))
 403 endef
 404
 405 define Build/pad-offset
 406         let \
 407                 size="$$(stat -c%s $@)" \
 408                 pad="$(word 1, $(1))" \
 409                 offset="$(word 2, $(1))" \
 410                 pad="(pad - ((size + offset) % pad)) % pad" \
 411                 newsize='size + pad'; \
 412                 dd if=$@ of=$@.new bs=$$newsize count=1 conv=sync
 413         mv $@.new $@
 414 endef
 415
 416 define Build/check-size
 417         @[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -ge "$$(stat -c%s $@)" ] || { \
 418                 echo "WARNING: Image file $@ is too big" >&2; \
 419                 rm -f $@; \
 420         }
 421 endef
 422
 423 define Build/combined-image
 424         -sh $(TOPDIR)/scripts/combined-image.sh \
 425                 "$(word 1,$^)" \
 426                 "$@" \
 427                 "$@.new"
 428         @mv $@.new $@
 429 endef
 430
 431 define Build/sysupgrade-nand
 432         sh $(TOPDIR)/scripts/sysupgrade-nand.sh \
 433                 --board $(if $(BOARD_NAME),$(BOARD_NAME),$(DEVICE_NAME)) \
 434                 --kernel $(word 1,$^) \
 435                 --rootfs $(word 2,$^) \
 436                 $@
 437 endef
 438
 439 define Device/Init
 440   PROFILES := $(PROFILE)
 441   DEVICE_NAME := $(1)
 442   KERNEL:=
 443   KERNEL_INITRAMFS = $$(KERNEL)
 444   KERNEL_SIZE:=
 445   CMDLINE:=
 446
 447   IMAGE_PREFIX := $(IMG_PREFIX)-$(1)
 448   IMAGE_NAME = $$(IMAGE_PREFIX)-$$(1)-$$(2)
 449   KERNEL_PREFIX = $(1)
 450   KERNEL_SUFFIX := -kernel.bin
 451   KERNEL_IMAGE = $$(KERNEL_PREFIX)$$(KERNEL_SUFFIX)
 452   KERNEL_INITRAMFS_PREFIX = $$(IMAGE_PREFIX)-initramfs
 453   KERNEL_INITRAMFS_IMAGE = $$(KERNEL_INITRAMFS_PREFIX)$$(KERNEL_SUFFIX)
 454   KERNEL_INITRAMFS_NAME = $$(KERNEL_NAME)-initramfs
 455   KERNEL_INSTALL :=
 456   KERNEL_NAME := vmlinux
 457   KERNEL_DEPENDS :=
 458   KERNEL_SIZE :=
 459
 460   FILESYSTEMS := $(TARGET_FILESYSTEMS)
 461 endef
 462
 463 define Device/ExportVar
 464   $(1) : $(2):=$$($(2))
 465
 466 endef
 467 define Device/Export
 468   $(foreach var,$(DEVICE_VARS) DEVICE_NAME KERNEL KERNEL_INITRAMFS KERNEL_INITRAMFS_IMAGE,$(call Device/ExportVar,$(1),$(var)))
 469   $(1) : FILESYSTEM:=$(2)
 470 endef
 471
 472 define Device/Check
 473   _TARGET = $$(if $$(filter $(PROFILE),$$(PROFILES)),install,install-disabled)
 474   _COMPILE_TARGET = $$(if $(if $(IB),,$(CONFIG_IB)$$(filter $(PROFILE),$$(PROFILES))),compile,compile-disabled)
 475 endef
 476
 477 ifndef IB
 478 define Device/Build/initramfs
 479   $(call Device/Export,$(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE),$(1))
 480   $$(_TARGET): $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE)
 481
 482   $(KDIR)/$$(KERNEL_INITRAMFS_NAME):: image_prepare
 483   $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE)
 484         cp $$^ $$@
 485
 486   $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/$$(KERNEL_INITRAMFS_NAME) $(CURDIR)/Makefile $$(KERNEL_DEPENDS)
 487         @rm -f $$@
 488         $$(call concat_cmd,$$(KERNEL_INITRAMFS))
 489 endef
 490 endif
 491
 492 define Device/Build/check_size
 493         @[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -ge "$$(stat -c%s $@)" ] || { \
 494                 echo "WARNING: Image file $@ is too big" >&2; \
 495                 rm -f $@; \
 496         }
 497 endef
 498
 499 define Device/Build/compile
 500   $$(_COMPILE_TARGET): $(KDIR)/$(1)
 501   $(eval $(call Device/Export,$(KDIR)/$(1)))
 502   $(KDIR)/$(1):
 503         $$(call concat_cmd,$(COMPILE/$(1)))
 504
 505 endef
 506
 507 define Device/Build/kernel
 508   _KERNEL_IMAGES += $(KDIR)/$$(KERNEL_NAME)
 509   $(KDIR)/$$(KERNEL_NAME):: image_prepare
 510   $$(_TARGET): $$(if $$(KERNEL_INSTALL),$(BIN_DIR)/$$(KERNEL_IMAGE))
 511   $(call Device/Export,$(KDIR)/$$(KERNEL_IMAGE),$(1))
 512   $(BIN_DIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_IMAGE)
 513         cp $$^ $$@
 514   ifndef IB
 515     ifdef CONFIG_IB
 516       install: $(KDIR)/$$(KERNEL_IMAGE)
 517     endif
 518     $(KDIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_NAME) $(CURDIR)/Makefile $$(KERNEL_DEPENDS)
 519         @rm -f $$@
 520         $$(call concat_cmd,$$(KERNEL))
 521         $$(if $$(KERNEL_SIZE),$$(call Device/Build/check_size,$$(KERNEL_SIZE)))
 522   endif
 523 endef
 524
 525 define Device/Build/image
 526   $$(_TARGET): $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2))
 527   $(eval $(call Device/Export,$(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2)),$(1)))
 528   $(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2)): $(KDIR)/$$(KERNEL_IMAGE) $(KDIR)/root.$(1)
 529         @rm -f $$@
 530         [ -f $$(word 1,$$^) -a -f $$(word 2,$$^) ]
 531         $$(call concat_cmd,$(if $(IMAGE/$(2)/$(1)),$(IMAGE/$(2)/$(1)),$(IMAGE/$(2))))
 532
 533   .IGNORE: $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2))
 534   $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2)): $(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2))
 535         cp $$^ $$@
 536
 537 endef
 538
 539 define Device/Build
 540   $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(call Device/Build/initramfs,$(1)))
 541   $(call Device/Build/kernel,$(1))
 542
 543   $$(eval $$(foreach compile,$$(COMPILE), \
 544     $$(call Device/Build/compile,$$(compile),$(1))))
 545
 546   $$(eval $$(foreach image,$$(IMAGES), \
 547     $$(foreach fs,$$(filter $(TARGET_FILESYSTEMS),$$(FILESYSTEMS)), \
 548       $$(call Device/Build/image,$$(fs),$$(image),$(1)))))
 549 endef
 550
 551 define Device
 552   $(call Device/Init,$(1))
 553   $(call Device/Default,$(1))
 554   $(call Device/Check,$(1))
 555   $(call Device/$(1),$(1))
 556   $(call Device/Build,$(1))
 557
 558 endef
 559
 560 define BuildImage
 561
 562   download:
 563   prepare:
 564   compile:
 565   clean:
 566   image_prepare:
 567
 568   ifeq ($(IB),)
 569     .PHONY: download prepare compile clean image_prepare mkfs_prepare kernel_prepare install
 570     compile:
 571                 $(call Build/Compile)
 572
 573     clean:
 574                 $(call Build/Clean)
 575
 576     image_prepare: compile
 577                 mkdir -p $(KDIR)/tmp
 578                 $(call Image/Prepare)
 579   else
 580     image_prepare:
 581                 mkdir -p $(KDIR)/tmp
 582   endif
 583
 584   mkfs_prepare: image_prepare
 585         $(call Image/mkfs/prepare)
 586
 587   kernel_prepare: mkfs_prepare
 588         $(call Image/BuildKernel)
 589         $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(if $(IB),,$(call Image/BuildKernel/Initramfs)))
 590         $(call Image/InstallKernel)
 591
 592   $(foreach device,$(TARGET_DEVICES),$(call Device,$(device)))
 593   $(foreach fs,$(TARGET_FILESYSTEMS) $(fs-subtypes-y),$(call BuildImage/mkfs,$(fs)))
 594
 595   install: kernel_prepare
 596         $(foreach fs,$(TARGET_FILESYSTEMS),
 597                 $(call Image/Build,$(fs))
 598         )
 599         $(call Image/mkfs/ubifs)
 600         $(call Image/Checksum,md5sum --binary,md5sums)
 601         $(call Image/Checksum,openssl dgst -sha256,sha256sums)
 602
 603 endef