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