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 define toupper
  22 $(shell echo $(1) | tr '[:lower:]' '[:upper:]')
  23 endef
  24
  25 define tolower
  26 $(shell echo $(1) | tr '[:upper:]' '[:lower:]')
  27 endef
  28
  29 define sanitize
  30 $(shell echo $(call tolower,$(1)) | sed 's/_/-/g')
  31 endef
  32
  33 DIST_SANITIZED:=$(call sanitize,$(VERSION_DIST))
  34 EXTRA_NAME_SANITIZED=$(call sanitize,$(EXTRA_IMAGE_NAME))
  35
  36 IMG_PREFIX:=$(DIST_SANITIZED)-$(if $(CONFIG_VERSION_FILENAMES),$(VERSION_NUMBER)-)$(if $(EXTRA_NAME_SANITIZED),$(EXTRA_NAME_SANITIZED)-)$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))
  37
  38 MKFS_DEVTABLE_OPT := -D $(INCLUDE_DIR)/device_table.txt
  39
  40 ifneq ($(CONFIG_BIG_ENDIAN),)
  41   JFFS2OPTS     :=  --big-endian --squash-uids -v
  42 else
  43   JFFS2OPTS     :=  --little-endian --squash-uids -v
  44 endif
  45
  46 ifeq ($(CONFIG_JFFS2_RTIME),y)
  47   JFFS2OPTS += -X rtime
  48 endif
  49 ifeq ($(CONFIG_JFFS2_ZLIB),y)
  50   JFFS2OPTS += -X zlib
  51 endif
  52 ifeq ($(CONFIG_JFFS2_LZMA),y)
  53   JFFS2OPTS += -X lzma --compression-mode=size
  54 endif
  55 ifneq ($(CONFIG_JFFS2_RTIME),y)
  56   JFFS2OPTS += -x rtime
  57 endif
  58 ifneq ($(CONFIG_JFFS2_ZLIB),y)
  59   JFFS2OPTS += -x zlib
  60 endif
  61 ifneq ($(CONFIG_JFFS2_LZMA),y)
  62   JFFS2OPTS += -x lzma
  63 endif
  64
  65 JFFS2OPTS += $(MKFS_DEVTABLE_OPT)
  66
  67 SQUASHFS_BLOCKSIZE := $(CONFIG_TARGET_SQUASHFS_BLOCK_SIZE)k
  68 SQUASHFSOPT := -b $(SQUASHFS_BLOCKSIZE)
  69 SQUASHFSOPT += -p '/dev d 755 0 0' -p '/dev/console c 600 0 0 5 1'
  70 SQUASHFSCOMP := gzip
  71 LZMA_XZ_OPTIONS := -Xpreset 9 -Xe -Xlc 0 -Xlp 2 -Xpb 2
  72 ifeq ($(CONFIG_SQUASHFS_LZMA),y)
  73   SQUASHFSCOMP := lzma $(LZMA_XZ_OPTIONS)
  74 endif
  75 ifeq ($(CONFIG_SQUASHFS_XZ),y)
  76   ifneq ($(filter arm x86 powerpc sparc,$(LINUX_KARCH)),)
  77     BCJ_FILTER:=-Xbcj $(LINUX_KARCH)
  78   endif
  79   SQUASHFSCOMP := xz $(LZMA_XZ_OPTIONS) $(BCJ_FILTER)
  80 endif
  81
  82 JFFS2_BLOCKSIZE ?= 64k 128k
  83
  84 fs-types-$(CONFIG_TARGET_ROOTFS_SQUASHFS) += squashfs
  85 fs-types-$(CONFIG_TARGET_ROOTFS_JFFS2) += $(addprefix jffs2-,$(JFFS2_BLOCKSIZE))
  86 fs-types-$(CONFIG_TARGET_ROOTFS_JFFS2_NAND) += $(addprefix jffs2-nand-,$(NAND_BLOCKSIZE))
  87 fs-types-$(CONFIG_TARGET_ROOTFS_EXT4FS) += ext4
  88 fs-types-$(CONFIG_TARGET_ROOTFS_ISO) += iso
  89 fs-subtypes-$(CONFIG_TARGET_ROOTFS_JFFS2) += $(addsuffix -raw,$(addprefix jffs2-,$(JFFS2_BLOCKSIZE)))
  90 fs-subtypes-$(CONFIG_TARGET_ROOTFS_CPIOGZ) += cpiogz
  91 fs-subtypes-$(CONFIG_TARGET_ROOTFS_TARGZ) += targz
  92
  93 TARGET_FILESYSTEMS := $(fs-types-y)
  94
  95 FS_64K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-64k
  96 FS_128K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-128k
  97 FS_256K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-256k
  98
  99 define add_jffs2_mark
 100         echo -ne '\xde\xad\xc0\xde' >> $(1)
 101 endef
 102
 103 PROFILE_SANITIZED := $(call sanitize,$(PROFILE))
 104
 105 define split_args
 106 $(foreach data, \
 107         $(subst |,$(space),\
 108                 $(subst $(space),^,$(1))), \
 109         $(call $(2),$(strip $(subst ^,$(space),$(data)))))
 110 endef
 111
 112 define build_cmd
 113 $(if $(Build/$(word 1,$(1))),,$(error Missing Build/$(word 1,$(1))))
 114 $(call Build/$(word 1,$(1)),$(wordlist 2,$(words $(1)),$(1)))
 115
 116 endef
 117
 118 define concat_cmd
 119 $(call split_args,$(1),build_cmd)
 120 endef
 121
 122 # pad to 4k, 8k, 16k, 64k, 128k, 256k and add jffs2 end-of-filesystem mark
 123 define prepare_generic_squashfs
 124         $(STAGING_DIR_HOST)/bin/padjffs2 $(1) 4 8 16 64 128 256
 125 endef
 126
 127 define Image/BuildKernel/Initramfs
 128         $(call Image/Build/Initramfs)
 129 endef
 130
 131 define Image/BuildKernel/MkuImage
 132         mkimage -A $(ARCH) -O linux -T kernel -C $(1) -a $(2) -e $(3) \
 133                 -n '$(call toupper,$(ARCH)) OpenWrt Linux-$(LINUX_VERSION)' -d $(4) $(5)
 134 endef
 135
 136 define Image/BuildKernel/MkFIT
 137         $(TOPDIR)/scripts/mkits.sh \
 138                 -D $(1) -o $(KDIR)/fit-$(1).its -k $(2) $(if $(3),-d $(3)) -C $(4) -a $(5) -e $(6) \
 139                 -A $(ARCH) -v $(LINUX_VERSION)
 140         PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $(KDIR)/fit-$(1).its $(KDIR)/fit-$(1)$(7).itb
 141 endef
 142
 143 # $(1) source dts file
 144 # $(2) target dtb file
 145 # $(3) extra CPP flags
 146 # $(4) extra DTC flags
 147 define Image/BuildDTB
 148         $(TARGET_CROSS)cpp -nostdinc -x assembler-with-cpp \
 149                 -I$(DTS_DIR) \
 150                 -I$(DTS_DIR)/include \
 151                 -undef -D__DTS__ $(3) \
 152                 -o $(2).tmp $(1)
 153         $(LINUX_DIR)/scripts/dtc/dtc -O dtb \
 154                 -i$(dir $(1)) $(4) \
 155                 -o $(2) $(2).tmp
 156         $(RM) $(2).tmp
 157 endef
 158
 159 define Image/mkfs/jffs2/sub
 160                 $(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 '/^.+$$$$/'
 161                 $(call add_jffs2_mark,$(KDIR)/root.jffs2-$(2))
 162 endef
 163
 164 define Image/mkfs/jffs2/sub-raw
 165                 $(STAGING_DIR_HOST)/bin/mkfs.jffs2 $(3) -e $(patsubst %k,%KiB,$(1)) -o $(KDIR)/root.jffs2-$(2)-raw -d $(TARGET_DIR) -v 2>&1 1>/dev/null | awk '/^.+$$$$/'
 166 endef
 167
 168 define Image/mkfs/jffs2/template
 169   Image/mkfs/jffs2-$(1) = $$(call Image/mkfs/jffs2/sub,$(1),$(1),$(JFFS2OPTS))
 170   Image/mkfs/jffs2-$(1)-raw = $$(call Image/mkfs/jffs2/sub-raw,$(1),$(1),$(JFFS2OPTS))
 171
 172 endef
 173
 174 define Image/mkfs/jffs2-nand/template
 175   Image/mkfs/jffs2-nand-$(1) = \
 176         $$(call Image/mkfs/jffs2/sub, \
 177                 $(word 2,$(subst -, ,$(1))),nand-$(1), \
 178                         $(JFFS2OPTS) --no-cleanmarkers --pagesize=$(word 1,$(subst -, ,$(1))))
 179
 180 endef
 181
 182 $(eval $(foreach S,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/template,$(S))))
 183 $(eval $(foreach S,$(NAND_BLOCKSIZE),$(call Image/mkfs/jffs2-nand/template,$(S))))
 184
 185 define Image/mkfs/squashfs
 186         $(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)
 187 endef
 188
 189 # $(1): board name
 190 # $(2): rootfs type
 191 # $(3): kernel image
 192 ifneq ($(CONFIG_NAND_SUPPORT),)
 193    define Image/Build/SysupgradeNAND
 194         mkdir -p "$(KDIR_TMP)/sysupgrade-$(1)/"
 195         echo "BOARD=$(1)" > "$(KDIR_TMP)/sysupgrade-$(1)/CONTROL"
 196         [ -z "$(2)" ] || $(CP) "$(KDIR)/root.$(2)" "$(KDIR_TMP)/sysupgrade-$(1)/root"
 197         [ -z "$(3)" ] || $(CP) "$(3)" "$(KDIR_TMP)/sysupgrade-$(1)/kernel"
 198         (cd "$(KDIR_TMP)"; $(TAR) cvf \
 199                 "$(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2)-sysupgrade.tar" sysupgrade-$(1))
 200    endef
 201
 202 # $(1) board name
 203 # $(2) ubinize-image options (e.g. --uboot-env and/or --kernel kernelimage)
 204 # $(3) rootfstype (e.g. squashfs or ubifs)
 205 # $(4) options to pass-through to ubinize (i.e. $($(PROFILE)_UBI_OPTS)))
 206    define Image/Build/UbinizeImage
 207         sh $(TOPDIR)/scripts/ubinize-image.sh $(2) \
 208                 "$(KDIR)/root.$(3)" \
 209                 "$(KDIR)/$(IMG_PREFIX)-$(1)-$(3)-ubinized.bin" \
 210                 $(4)
 211    endef
 212
 213 endif
 214
 215 ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
 216     define Image/mkfs/ubifs/generate
 217         $(CP) ./ubinize$(1).cfg $(KDIR)
 218         ( cd $(KDIR); \
 219                 $(STAGING_DIR_HOST)/bin/ubinize \
 220                 $(if $($(PROFILE)_UBI_OPTS), \
 221                         $(shell echo $($(PROFILE)_UBI_OPTS)), \
 222                         $(shell echo $(UBI_OPTS)) \
 223                 ) \
 224                 -o $(KDIR)/root$(1).ubi \
 225                 ubinize$(1).cfg \
 226         )
 227     endef
 228
 229     define Image/mkfs/ubifs
 230
 231         ifneq ($($(PROFILE)_UBIFS_OPTS)$(UBIFS_OPTS),)
 232                 $(STAGING_DIR_HOST)/bin/mkfs.ubifs \
 233                         $(if $($(PROFILE)_UBIFS_OPTS), \
 234                                 $(shell echo $($(PROFILE)_UBIFS_OPTS)), \
 235                                 $(shell echo $(UBIFS_OPTS)) \
 236                         ) \
 237                         $(if $(CONFIG_TARGET_UBIFS_FREE_SPACE_FIXUP),--space-fixup) \
 238                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_NONE),--force-compr=none) \
 239                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_LZO),--force-compr=lzo) \
 240                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_ZLIB),--force-compr=zlib) \
 241                         $(if $(shell echo $(CONFIG_TARGET_UBIFS_JOURNAL_SIZE)),--jrn-size=$(CONFIG_TARGET_UBIFS_JOURNAL_SIZE)) \
 242                         --squash-uids \
 243                         -o $(KDIR)/root.ubifs \
 244                         -d $(TARGET_DIR)
 245         endif
 246         $(call Image/Build,ubifs)
 247
 248         ifneq ($($(PROFILE)_UBI_OPTS)$(UBI_OPTS),)
 249                 $(if $(wildcard ./ubinize.cfg),$(call Image/mkfs/ubifs/generate,))
 250                 $(if $(wildcard ./ubinize-overlay.cfg),$(call Image/mkfs/ubifs/generate,-overlay))
 251         endif
 252         $(if $(wildcard ./ubinize.cfg),$(call Image/Build,ubi))
 253     endef
 254 endif
 255
 256 define Image/mkfs/cpiogz
 257         ( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9n >$(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz )
 258 endef
 259
 260 define Image/mkfs/targz
 261         $(TAR) -czpf $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-$(PROFILE_SANITIZED))-rootfs.tar.gz --numeric-owner --owner=0 --group=0 --sort=name -C $(TARGET_DIR)/ .
 262 endef
 263
 264 E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024*1024)))
 265
 266 define Image/mkfs/ext4
 267         $(STAGING_DIR_HOST)/bin/make_ext4fs \
 268                 -l $(E2SIZE) -b $(CONFIG_TARGET_EXT4_BLOCKSIZE) \
 269                 -i $(CONFIG_TARGET_EXT4_MAXINODE) \
 270                 -m $(CONFIG_TARGET_EXT4_RESERVED_PCT) \
 271                 $(if $(CONFIG_TARGET_EXT4_JOURNAL),,-J) \
 272                 $(KDIR)/root.ext4 $(TARGET_DIR)/
 273 endef
 274
 275 define Image/mkfs/prepare/default
 276         # Use symbolic permissions to avoid clobbering SUID/SGID/sticky bits
 277         - $(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
 278         - $(FIND) $(TARGET_DIR) -type f -perm /0100 -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 279         - $(FIND) $(TARGET_DIR) -type d -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 280         $(INSTALL_DIR) $(TARGET_DIR)/tmp $(TARGET_DIR)/overlay
 281         chmod 1777 $(TARGET_DIR)/tmp
 282 endef
 283
 284 define Image/mkfs/prepare
 285         $(call Image/mkfs/prepare/default)
 286 endef
 287
 288
 289 define Image/Checksum
 290         ( cd ${BIN_DIR} ; \
 291                 $(FIND) -maxdepth 1 -type f \! -name 'md5sums'  -printf "%P\n" | sort | xargs $1 > $2 \
 292         )
 293 endef
 294
 295 define BuildImage/mkfs
 296   install: mkfs-$(1)
 297   .PHONY: mkfs-$(1)
 298   mkfs-$(1): kernel_prepare
 299         $(Image/mkfs/$(1))
 300         $(call Build/mkfs/default,$(1))
 301         $(call Build/mkfs/$(1),$(1))
 302   $(KDIR)/root.$(1): mkfs-$(1)
 303
 304 endef
 305
 306 # Build commands that can be called from Device/* templates
 307 define Build/uImage
 308         mkimage -A $(LINUX_KARCH) \
 309                 -O linux -T kernel \
 310                 -C $(1) -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
 311                 -n '$(call toupper,$(LINUX_KARCH)) OpenWrt Linux-$(LINUX_VERSION)' -d $@ $@.new
 312         @mv $@.new $@
 313 endef
 314
 315 define Build/netgear-chk
 316         $(STAGING_DIR_HOST)/bin/mkchkimg \
 317                 -o $@.new \
 318                 -k $@ \
 319                 -b $(NETGEAR_BOARD_ID) \
 320                 -r $(NETGEAR_REGION)
 321         mv $@.new $@
 322 endef
 323
 324 define Build/netgear-dni
 325         $(STAGING_DIR_HOST)/bin/mkdniimg \
 326                 -B $(NETGEAR_BOARD_ID) -v OpenWrt.$(REVISION) \
 327                 $(if $(NETGEAR_HW_ID),-H $(NETGEAR_HW_ID)) \
 328                 -r "$(1)" \
 329                 -i $@ -o $@.new
 330         mv $@.new $@
 331 endef
 332
 333 define Build/fit
 334         $(TOPDIR)/scripts/mkits.sh \
 335                 -D $(DEVICE_NAME) -o $@.its -k $@ \
 336                 $(if $(word 2,$(1)),-d $(word 2,$(1))) -C $(word 1,$(1)) \
 337                 -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
 338                 -A $(ARCH) -v $(LINUX_VERSION)
 339         PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $@.its $@.new
 340         @mv $@.new $@
 341 endef
 342
 343 define Build/lzma
 344         $(STAGING_DIR_HOST)/bin/lzma e $@ -lc1 -lp2 -pb2 $(1) $@.new
 345         @mv $@.new $@
 346 endef
 347
 348 define Build/gzip
 349         gzip -9n -c $@ $(1) > $@.new
 350         @mv $@.new $@
 351 endef
 352
 353 define Build/jffs2
 354         rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 && \
 355                 mkdir -p $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$$(dirname $(1)) && \
 356                 cp $@ $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$(1) && \
 357                 $(STAGING_DIR_HOST)/bin/mkfs.jffs2 --pad \
 358                         $(if $(CONFIG_BIG_ENDIAN),--big-endian,--little-endian) \
 359                         --squash-uids -v -e $(patsubst %k,%KiB,$(BLOCKSIZE)) \
 360                         -o $@.new \
 361                         -d $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 \
 362                         2>&1 1>/dev/null | awk '/^.+$$$$/' && \
 363                 $(STAGING_DIR_HOST)/bin/padjffs2 $@.new -J $(patsubst %k,,$(BLOCKSIZE))
 364         -rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/
 365         @mv $@.new $@
 366 endef
 367
 368 define Build/kernel-bin
 369         rm -f $@
 370         cp $^ $@
 371 endef
 372
 373 define Build/patch-cmdline
 374         $(STAGING_DIR_HOST)/bin/patch-cmdline $@ '$(CMDLINE)'
 375 endef
 376
 377 define Build/append-kernel
 378         dd if=$(word 1,$^) $(if $(1),bs=$(1) conv=sync) >> $@
 379 endef
 380
 381 define Build/append-rootfs
 382         dd if=$(word 2,$^) $(if $(1),bs=$(1) conv=sync) >> $@
 383 endef
 384
 385 define Build/append-ubi
 386         sh $(TOPDIR)/scripts/ubinize-image.sh \
 387                 $(if $(KERNEL_IN_UBI),--kernel $(word 1,$^)) \
 388                 $(word 2,$^) \
 389                 $@.tmp \
 390                 -p $(BLOCKSIZE) -m $(PAGESIZE) -E 5 \
 391                 $(if $(SUBPAGESIZE),-s $(SUBPAGESIZE))
 392         cat $@.tmp >> $@
 393         rm $@.tmp
 394 endef
 395
 396 define Build/pad-to
 397         dd if=$@ of=$@.new bs=$(1) conv=sync
 398         mv $@.new $@
 399 endef
 400
 401 define Build/pad-rootfs
 402         $(call prepare_generic_squashfs,$@ $(1))
 403 endef
 404
 405 define Build/pad-offset
 406         let \
 407                 size="$$(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 = $$(KERNEL_NAME)-initramfs
 455   KERNEL_INSTALL :=
 456   KERNEL_NAME := vmlinux
 457   KERNEL_SIZE :=
 458
 459   FILESYSTEMS := $(TARGET_FILESYSTEMS)
 460 endef
 461
 462 define Device/ExportVar
 463   $(1) : $(2):=$$($(2))
 464
 465 endef
 466 define Device/Export
 467   $(foreach var,$(DEVICE_VARS) DEVICE_NAME KERNEL KERNEL_INITRAMFS,$(call Device/ExportVar,$(1),$(var)))
 468   $(1) : FILESYSTEM:=$(2)
 469 endef
 470
 471 define Device/Check
 472   _TARGET = $$(if $$(filter $(PROFILE),$$(PROFILES)),install,install-disabled)
 473   _COMPILE_TARGET = $$(if $(if $(IB),,$(CONFIG_IB)$$(filter $(PROFILE),$$(PROFILES))),compile,compile-disabled)
 474 endef
 475
 476 ifndef IB
 477 define Device/Build/initramfs
 478   $(call Device/Export,$(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE),$(1))
 479   $$(_TARGET): $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE)
 480
 481   $(KDIR)/$$(KERNEL_INITRAMFS_NAME): image_prepare
 482   $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE)
 483         cp $$^ $$@
 484
 485   $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/$$(KERNEL_INITRAMFS_NAME)
 486         @rm -f $$@
 487         $$(call concat_cmd,$$(KERNEL_INITRAMFS))
 488 endef
 489 endif
 490
 491 define Device/Build/check_size
 492         @[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -ge "$$(stat -c%s $@)" ] || { \
 493                 echo "WARNING: Image file $@ is too big" >&2; \
 494                 rm -f $@; \
 495         }
 496 endef
 497
 498 define Device/Build/compile
 499   $$(_COMPILE_TARGET): $(KDIR)/$(1)
 500   $(eval $(call Device/Export,$(KDIR)/$(1)))
 501   $(KDIR)/$(1):
 502         $$(call concat_cmd,$(COMPILE/$(1)))
 503
 504 endef
 505
 506 define Device/Build/kernel
 507   _KERNEL_IMAGES += $(KDIR)/$$(KERNEL_NAME)
 508   $(KDIR)/$$(KERNEL_NAME): image_prepare
 509   $$(_TARGET): $$(if $$(KERNEL_INSTALL),$(BIN_DIR)/$$(KERNEL_IMAGE))
 510   $(call Device/Export,$(KDIR)/$$(KERNEL_IMAGE),$(1))
 511   $(BIN_DIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_IMAGE)
 512         cp $$^ $$@
 513   ifndef IB
 514     ifdef CONFIG_IB
 515       install: $(KDIR)/$$(KERNEL_IMAGE)
 516     endif
 517     $(KDIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_NAME)
 518         @rm -f $$@
 519         $$(call concat_cmd,$$(KERNEL))
 520         $$(if $$(KERNEL_SIZE),$$(call Device/Build/check_size,$$(KERNEL_SIZE)))
 521   endif
 522 endef
 523
 524 define Device/Build/image
 525   $$(_TARGET): $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2))
 526   $(eval $(call Device/Export,$(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2)),$(1)))
 527   $(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2)): $(KDIR)/$$(KERNEL_IMAGE) $(KDIR)/root.$(1)
 528         @rm -f $$@
 529         [ -f $$(word 1,$$^) -a -f $$(word 2,$$^) ]
 530         $$(call concat_cmd,$(if $(IMAGE/$(2)/$(1)),$(IMAGE/$(2)/$(1)),$(IMAGE/$(2))))
 531
 532   .IGNORE: $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2))
 533   $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2)): $(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2))
 534         cp $$^ $$@
 535
 536 endef
 537
 538 define Device/Build
 539   $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(call Device/Build/initramfs,$(1)))
 540   $(call Device/Build/kernel,$(1))
 541
 542   $$(eval $$(foreach compile,$$(COMPILE), \
 543     $$(call Device/Build/compile,$$(compile),$(1))))
 544
 545   $$(eval $$(foreach image,$$(IMAGES), \
 546     $$(foreach fs,$$(filter $(TARGET_FILESYSTEMS),$$(FILESYSTEMS)), \
 547       $$(call Device/Build/image,$$(fs),$$(image),$(1)))))
 548 endef
 549
 550 define Device
 551   $(call Device/Init,$(1))
 552   $(call Device/Default,$(1))
 553   $(call Device/Check,$(1))
 554   $(call Device/$(1),$(1))
 555   $(call Device/Build,$(1))
 556
 557 endef
 558
 559 define BuildImage
 560
 561   download:
 562   prepare:
 563   compile:
 564   clean:
 565   image_prepare:
 566
 567   ifeq ($(IB),)
 568     .PHONY: download prepare compile clean image_prepare mkfs_prepare kernel_prepare install
 569     compile:
 570                 $(call Build/Compile)
 571
 572     clean:
 573                 $(call Build/Clean)
 574
 575     image_prepare: compile
 576                 mkdir -p $(KDIR)/tmp
 577                 $(call Image/Prepare)
 578   else
 579     image_prepare:
 580                 mkdir -p $(KDIR)/tmp
 581   endif
 582
 583   mkfs_prepare: image_prepare
 584         $(call Image/mkfs/prepare)
 585
 586   kernel_prepare: mkfs_prepare
 587         $(call Image/BuildKernel)
 588         $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(if $(IB),,$(call Image/BuildKernel/Initramfs)))
 589         $(call Image/InstallKernel)
 590
 591   $(foreach device,$(TARGET_DEVICES),$(call Device,$(device)))
 592   $(foreach fs,$(TARGET_FILESYSTEMS) $(fs-subtypes-y),$(call BuildImage/mkfs,$(fs)))
 593
 594   $$(sort $$(_KERNEL_IMAGES)):
 595         @touch $$@
 596
 597   install: kernel_prepare
 598         $(foreach fs,$(TARGET_FILESYSTEMS),
 599                 $(call Image/Build,$(fs))
 600         )
 601         $(call Image/mkfs/ubifs)
 602         $(call Image/Checksum,md5sum --binary,md5sums)
 603         $(call Image/Checksum,openssl dgst -sha256,sha256sums)
 604
 605 endef