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)
 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    endef
 192
 193 # $(1) board name
 194 # $(2) ubinize-image options (e.g. --uboot-env and/or --kernel kernelimage)
 195 # $(3) rootfstype (e.g. squashfs or ubifs)
 196 # $(4) options to pass-through to ubinize (i.e. $($(PROFILE)_UBI_OPTS)))
 197    define Image/Build/UbinizeImage
 198         sh $(TOPDIR)/scripts/ubinize-image.sh $(2) \
 199                 "$(KDIR)/root.$(3)" \
 200                 "$(KDIR)/$(IMG_PREFIX)-$(1)-$(3)-ubinized.bin" \
 201                 $(4)
 202    endef
 203
 204 endif
 205
 206 ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
 207     define Image/mkfs/ubifs/generate
 208         $(CP) ./ubinize$(1).cfg $(KDIR)
 209         ( cd $(KDIR); \
 210                 $(STAGING_DIR_HOST)/bin/ubinize \
 211                 $(if $($(PROFILE)_UBI_OPTS), \
 212                         $(shell echo $($(PROFILE)_UBI_OPTS)), \
 213                         $(shell echo $(UBI_OPTS)) \
 214                 ) \
 215                 -o $(KDIR)/root$(1).ubi \
 216                 ubinize$(1).cfg \
 217         )
 218     endef
 219
 220     define Image/mkfs/ubifs
 221
 222         ifneq ($($(PROFILE)_UBIFS_OPTS)$(UBIFS_OPTS),)
 223                 $(STAGING_DIR_HOST)/bin/mkfs.ubifs \
 224                         $(if $($(PROFILE)_UBIFS_OPTS), \
 225                                 $(shell echo $($(PROFILE)_UBIFS_OPTS)), \
 226                                 $(shell echo $(UBIFS_OPTS)) \
 227                         ) \
 228                         $(if $(CONFIG_TARGET_UBIFS_FREE_SPACE_FIXUP),--space-fixup) \
 229                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_NONE),--force-compr=none) \
 230                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_LZO),--force-compr=lzo) \
 231                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_ZLIB),--force-compr=zlib) \
 232                         $(if $(shell echo $(CONFIG_TARGET_UBIFS_JOURNAL_SIZE)),--jrn-size=$(CONFIG_TARGET_UBIFS_JOURNAL_SIZE)) \
 233                         --squash-uids \
 234                         -o $(KDIR)/root.ubifs \
 235                         -d $(TARGET_DIR)
 236         endif
 237         $(call Image/Build,ubifs)
 238
 239         ifneq ($($(PROFILE)_UBI_OPTS)$(UBI_OPTS),)
 240                 $(if $(wildcard ./ubinize.cfg),$(call Image/mkfs/ubifs/generate,))
 241                 $(if $(wildcard ./ubinize-overlay.cfg),$(call Image/mkfs/ubifs/generate,-overlay))
 242         endif
 243         $(if $(wildcard ./ubinize.cfg),$(call Image/Build,ubi))
 244     endef
 245 endif
 246
 247 define Image/mkfs/cpiogz
 248         ( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9n >$(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz )
 249 endef
 250
 251 define Image/mkfs/targz
 252         $(TAR) -cp --numeric-owner --owner=0 --group=0 --sort=name \
 253                 $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
 254                 -C $(TARGET_DIR)/ . | gzip -9n > $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-$(PROFILE_SANITIZED))-rootfs.tar.gz
 255 endef
 256
 257 E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024*1024)))
 258
 259 define Image/mkfs/ext4
 260         $(STAGING_DIR_HOST)/bin/make_ext4fs \
 261                 -l $(E2SIZE) -b $(CONFIG_TARGET_EXT4_BLOCKSIZE) \
 262                 -i $(CONFIG_TARGET_EXT4_MAXINODE) \
 263                 -m $(CONFIG_TARGET_EXT4_RESERVED_PCT) \
 264                 $(if $(CONFIG_TARGET_EXT4_JOURNAL),,-J) \
 265                 $(KDIR)/root.ext4 $(TARGET_DIR)/
 266 endef
 267
 268 define Image/mkfs/prepare/default
 269         # Use symbolic permissions to avoid clobbering SUID/SGID/sticky bits
 270         - $(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
 271         - $(FIND) $(TARGET_DIR) -type f -perm /0100 -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 272         - $(FIND) $(TARGET_DIR) -type d -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 273         $(INSTALL_DIR) $(TARGET_DIR)/tmp $(TARGET_DIR)/overlay
 274         chmod 1777 $(TARGET_DIR)/tmp
 275 endef
 276
 277 define Image/mkfs/prepare
 278         $(call Image/mkfs/prepare/default)
 279 endef
 280
 281
 282 define Image/Checksum
 283         ( cd ${BIN_DIR} ; \
 284                 $(FIND) -maxdepth 1 -type f \! -name 'md5sums'  -printf "%P\n" | sort | xargs $1 > $2 \
 285         )
 286 endef
 287
 288 define BuildImage/mkfs
 289   install: mkfs-$(1)
 290   .PHONY: mkfs-$(1)
 291   mkfs-$(1): kernel_prepare
 292         $(Image/mkfs/$(1))
 293         $(call Build/mkfs/default,$(1))
 294         $(call Build/mkfs/$(1),$(1))
 295   $(KDIR)/root.$(1): mkfs-$(1)
 296
 297 endef
 298
 299 # Build commands that can be called from Device/* templates
 300 define Build/uImage
 301         mkimage -A $(LINUX_KARCH) \
 302                 -O linux -T kernel \
 303                 -C $(1) -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
 304                 -n '$(call toupper,$(LINUX_KARCH)) OpenWrt Linux-$(LINUX_VERSION)' -d $@ $@.new
 305         @mv $@.new $@
 306 endef
 307
 308 define Build/netgear-chk
 309         $(STAGING_DIR_HOST)/bin/mkchkimg \
 310                 -o $@.new \
 311                 -k $@ \
 312                 -b $(NETGEAR_BOARD_ID) \
 313                 -r $(NETGEAR_REGION)
 314         mv $@.new $@
 315 endef
 316
 317 define Build/netgear-dni
 318         $(STAGING_DIR_HOST)/bin/mkdniimg \
 319                 -B $(NETGEAR_BOARD_ID) -v OpenWrt.$(REVISION) \
 320                 $(if $(NETGEAR_HW_ID),-H $(NETGEAR_HW_ID)) \
 321                 -r "$(1)" \
 322                 -i $@ -o $@.new
 323         mv $@.new $@
 324 endef
 325
 326 define Build/fit
 327         $(TOPDIR)/scripts/mkits.sh \
 328                 -D $(DEVICE_NAME) -o $@.its -k $@ \
 329                 $(if $(word 2,$(1)),-d $(word 2,$(1))) -C $(word 1,$(1)) \
 330                 -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
 331                 -A $(ARCH) -v $(LINUX_VERSION)
 332         PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $@.its $@.new
 333         @mv $@.new $@
 334 endef
 335
 336 define Build/lzma
 337         $(STAGING_DIR_HOST)/bin/lzma e $@ -lc1 -lp2 -pb2 $(1) $@.new
 338         @mv $@.new $@
 339 endef
 340
 341 define Build/gzip
 342         gzip -9n -c $@ $(1) > $@.new
 343         @mv $@.new $@
 344 endef
 345
 346 define Build/jffs2
 347         rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 && \
 348                 mkdir -p $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$$(dirname $(1)) && \
 349                 cp $@ $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$(1) && \
 350                 $(STAGING_DIR_HOST)/bin/mkfs.jffs2 --pad \
 351                         $(if $(CONFIG_BIG_ENDIAN),--big-endian,--little-endian) \
 352                         --squash-uids -v -e $(patsubst %k,%KiB,$(BLOCKSIZE)) \
 353                         -o $@.new \
 354                         -d $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 \
 355                         2>&1 1>/dev/null | awk '/^.+$$$$/' && \
 356                 $(STAGING_DIR_HOST)/bin/padjffs2 $@.new -J $(patsubst %k,,$(BLOCKSIZE))
 357         -rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/
 358         @mv $@.new $@
 359 endef
 360
 361 define Build/kernel-bin
 362         rm -f $@
 363         cp $< $@
 364 endef
 365
 366 define Build/patch-cmdline
 367         $(STAGING_DIR_HOST)/bin/patch-cmdline $@ '$(CMDLINE)'
 368 endef
 369
 370 define Build/append-kernel
 371         dd if=$(word 1,$^) $(if $(1),bs=$(1) conv=sync) >> $@
 372 endef
 373
 374 define Build/append-rootfs
 375         dd if=$(word 2,$^) $(if $(1),bs=$(1) conv=sync) >> $@
 376 endef
 377
 378 define Build/append-ubi
 379         sh $(TOPDIR)/scripts/ubinize-image.sh \
 380                 $(if $(KERNEL_IN_UBI),--kernel $(word 1,$^)) \
 381                 $(word 2,$^) \
 382                 $@.tmp \
 383                 -p $(BLOCKSIZE) -m $(PAGESIZE) -E 5 \
 384                 $(if $(SUBPAGESIZE),-s $(SUBPAGESIZE))
 385         cat $@.tmp >> $@
 386         rm $@.tmp
 387 endef
 388
 389 define Build/pad-to
 390         dd if=$@ of=$@.new bs=$(1) conv=sync
 391         mv $@.new $@
 392 endef
 393
 394 define Build/pad-rootfs
 395         $(call prepare_generic_squashfs,$@ $(1))
 396 endef
 397
 398 define Build/pad-offset
 399         let \
 400                 size="$$(stat -c%s $@)" \
 401                 pad="$(word 1, $(1))" \
 402                 offset="$(word 2, $(1))" \
 403                 pad="(pad - ((size + offset) % pad)) % pad" \
 404                 newsize='size + pad'; \
 405                 dd if=$@ of=$@.new bs=$$newsize count=1 conv=sync
 406         mv $@.new $@
 407 endef
 408
 409 define Build/check-size
 410         @[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -ge "$$(stat -c%s $@)" ] || { \
 411                 echo "WARNING: Image file $@ is too big" >&2; \
 412                 rm -f $@; \
 413         }
 414 endef
 415
 416 define Build/combined-image
 417         -sh $(TOPDIR)/scripts/combined-image.sh \
 418                 "$(word 1,$^)" \
 419                 "$@" \
 420                 "$@.new"
 421         @mv $@.new $@
 422 endef
 423
 424 define Build/sysupgrade-nand
 425         sh $(TOPDIR)/scripts/sysupgrade-nand.sh \
 426                 --board $(if $(BOARD_NAME),$(BOARD_NAME),$(DEVICE_NAME)) \
 427                 --kernel $(word 1,$^) \
 428                 --rootfs $(word 2,$^) \
 429                 $@
 430 endef
 431
 432 define Device/Init
 433   PROFILES := $(PROFILE)
 434   DEVICE_NAME := $(1)
 435   KERNEL:=
 436   KERNEL_INITRAMFS = $$(KERNEL)
 437   KERNEL_SIZE:=
 438   CMDLINE:=
 439
 440   IMAGE_PREFIX := $(IMG_PREFIX)-$(1)
 441   IMAGE_NAME = $$(IMAGE_PREFIX)-$$(1)-$$(2)
 442   KERNEL_PREFIX = $(1)
 443   KERNEL_SUFFIX := -kernel.bin
 444   KERNEL_IMAGE = $$(KERNEL_PREFIX)$$(KERNEL_SUFFIX)
 445   KERNEL_INITRAMFS_PREFIX = $$(IMAGE_PREFIX)-initramfs
 446   KERNEL_INITRAMFS_IMAGE = $$(KERNEL_INITRAMFS_PREFIX)$$(KERNEL_SUFFIX)
 447   KERNEL_INITRAMFS_NAME = $$(KERNEL_NAME)-initramfs
 448   KERNEL_INSTALL :=
 449   KERNEL_NAME := vmlinux
 450   KERNEL_DEPENDS :=
 451   KERNEL_SIZE :=
 452
 453   FILESYSTEMS := $(TARGET_FILESYSTEMS)
 454 endef
 455
 456 define Device/ExportVar
 457   $(1) : $(2):=$$($(2))
 458
 459 endef
 460 define Device/Export
 461   $(foreach var,$(DEVICE_VARS) DEVICE_NAME KERNEL KERNEL_INITRAMFS KERNEL_INITRAMFS_IMAGE,$(call Device/ExportVar,$(1),$(var)))
 462   $(1) : FILESYSTEM:=$(2)
 463 endef
 464
 465 define Device/Check
 466   _TARGET = $$(if $$(filter $(PROFILE),$$(PROFILES)),install,install-disabled)
 467   _COMPILE_TARGET = $$(if $(if $(IB),,$(CONFIG_IB)$$(filter $(PROFILE),$$(PROFILES))),compile,compile-disabled)
 468 endef
 469
 470 ifndef IB
 471 define Device/Build/initramfs
 472   $(call Device/Export,$(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE),$(1))
 473   $$(_TARGET): $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE)
 474
 475   $(KDIR)/$$(KERNEL_INITRAMFS_NAME):: image_prepare
 476   $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE)
 477         cp $$^ $$@
 478
 479   $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/$$(KERNEL_INITRAMFS_NAME) $(CURDIR)/Makefile $$(KERNEL_DEPENDS)
 480         @rm -f $$@
 481         $$(call concat_cmd,$$(KERNEL_INITRAMFS))
 482 endef
 483 endif
 484
 485 define Device/Build/check_size
 486         @[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -ge "$$(stat -c%s $@)" ] || { \
 487                 echo "WARNING: Image file $@ is too big" >&2; \
 488                 rm -f $@; \
 489         }
 490 endef
 491
 492 define Device/Build/compile
 493   $$(_COMPILE_TARGET): $(KDIR)/$(1)
 494   $(eval $(call Device/Export,$(KDIR)/$(1)))
 495   $(KDIR)/$(1):
 496         $$(call concat_cmd,$(COMPILE/$(1)))
 497
 498 endef
 499
 500 define Device/Build/kernel
 501   _KERNEL_IMAGES += $(KDIR)/$$(KERNEL_NAME)
 502   $(KDIR)/$$(KERNEL_NAME):: image_prepare
 503   $$(_TARGET): $$(if $$(KERNEL_INSTALL),$(BIN_DIR)/$$(KERNEL_IMAGE))
 504   $(call Device/Export,$(KDIR)/$$(KERNEL_IMAGE),$(1))
 505   $(BIN_DIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_IMAGE)
 506         cp $$^ $$@
 507   ifndef IB
 508     ifdef CONFIG_IB
 509       install: $(KDIR)/$$(KERNEL_IMAGE)
 510     endif
 511     $(KDIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_NAME) $(CURDIR)/Makefile $$(KERNEL_DEPENDS)
 512         @rm -f $$@
 513         $$(call concat_cmd,$$(KERNEL))
 514         $$(if $$(KERNEL_SIZE),$$(call Device/Build/check_size,$$(KERNEL_SIZE)))
 515   endif
 516 endef
 517
 518 define Device/Build/image
 519   $$(_TARGET): $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2))
 520   $(eval $(call Device/Export,$(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2)),$(1)))
 521   $(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2)): $(KDIR)/$$(KERNEL_IMAGE) $(KDIR)/root.$(1)
 522         @rm -f $$@
 523         [ -f $$(word 1,$$^) -a -f $$(word 2,$$^) ]
 524         $$(call concat_cmd,$(if $(IMAGE/$(2)/$(1)),$(IMAGE/$(2)/$(1)),$(IMAGE/$(2))))
 525
 526   .IGNORE: $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2))
 527   $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2)): $(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2))
 528         cp $$^ $$@
 529
 530 endef
 531
 532 define Device/Build
 533   $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(call Device/Build/initramfs,$(1)))
 534   $(call Device/Build/kernel,$(1))
 535
 536   $$(eval $$(foreach compile,$$(COMPILE), \
 537     $$(call Device/Build/compile,$$(compile),$(1))))
 538
 539   $$(eval $$(foreach image,$$(IMAGES), \
 540     $$(foreach fs,$$(filter $(TARGET_FILESYSTEMS),$$(FILESYSTEMS)), \
 541       $$(call Device/Build/image,$$(fs),$$(image),$(1)))))
 542 endef
 543
 544 define Device
 545   $(call Device/Init,$(1))
 546   $(call Device/Default,$(1))
 547   $(call Device/Check,$(1))
 548   $(call Device/$(1),$(1))
 549   $(call Device/Build,$(1))
 550
 551 endef
 552
 553 define BuildImage
 554
 555   download:
 556   prepare:
 557   compile:
 558   clean:
 559   image_prepare:
 560
 561   ifeq ($(IB),)
 562     .PHONY: download prepare compile clean image_prepare mkfs_prepare kernel_prepare install
 563     compile:
 564                 $(call Build/Compile)
 565
 566     clean:
 567                 $(call Build/Clean)
 568
 569     image_prepare: compile
 570                 mkdir -p $(KDIR)/tmp
 571                 $(call Image/Prepare)
 572   else
 573     image_prepare:
 574                 mkdir -p $(KDIR)/tmp
 575   endif
 576
 577   mkfs_prepare: image_prepare
 578         $(call Image/mkfs/prepare)
 579
 580   kernel_prepare: mkfs_prepare
 581         $(call Image/BuildKernel)
 582         $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(if $(IB),,$(call Image/BuildKernel/Initramfs)))
 583         $(call Image/InstallKernel)
 584
 585   $(foreach device,$(TARGET_DEVICES),$(call Device,$(device)))
 586   $(foreach fs,$(TARGET_FILESYSTEMS) $(fs-subtypes-y),$(call BuildImage/mkfs,$(fs)))
 587
 588   install: kernel_prepare
 589         $(foreach fs,$(TARGET_FILESYSTEMS),
 590                 $(call Image/Build,$(fs))
 591         )
 592         $(call Image/mkfs/ubifs)
 593         $(call Image/Checksum,md5sum --binary,md5sums)
 594         $(call Image/Checksum,openssl dgst -sha256,sha256sums)
 595
 596 endef