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_XZ),y)
  63   ifneq ($(filter arm x86 powerpc sparc,$(LINUX_KARCH)),)
  64     BCJ_FILTER:=-Xbcj $(LINUX_KARCH)
  65   endif
  66   SQUASHFSCOMP := xz $(LZMA_XZ_OPTIONS) $(BCJ_FILTER)
  67 endif
  68
  69 JFFS2_BLOCKSIZE ?= 64k 128k
  70
  71 fs-types-$(CONFIG_TARGET_ROOTFS_SQUASHFS) += squashfs
  72 fs-types-$(CONFIG_TARGET_ROOTFS_JFFS2) += $(addprefix jffs2-,$(JFFS2_BLOCKSIZE))
  73 fs-types-$(CONFIG_TARGET_ROOTFS_JFFS2_NAND) += $(addprefix jffs2-nand-,$(NAND_BLOCKSIZE))
  74 fs-types-$(CONFIG_TARGET_ROOTFS_EXT4FS) += ext4
  75 fs-types-$(CONFIG_TARGET_ROOTFS_ISO) += iso
  76 fs-subtypes-$(CONFIG_TARGET_ROOTFS_JFFS2) += $(addsuffix -raw,$(addprefix jffs2-,$(JFFS2_BLOCKSIZE)))
  77 fs-subtypes-$(CONFIG_TARGET_ROOTFS_CPIOGZ) += cpiogz
  78 fs-subtypes-$(CONFIG_TARGET_ROOTFS_TARGZ) += targz
  79
  80 TARGET_FILESYSTEMS := $(fs-types-y)
  81
  82 FS_64K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-64k
  83 FS_128K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-128k
  84 FS_256K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-256k
  85
  86 define add_jffs2_mark
  87         echo -ne '\xde\xad\xc0\xde' >> $(1)
  88 endef
  89
  90 PROFILE_SANITIZED := $(call sanitize,$(PROFILE))
  91
  92 define split_args
  93 $(foreach data, \
  94         $(subst |,$(space),\
  95                 $(subst $(space),^,$(1))), \
  96         $(call $(2),$(strip $(subst ^,$(space),$(data)))))
  97 endef
  98
  99 define build_cmd
 100 $(if $(Build/$(word 1,$(1))),,$(error Missing Build/$(word 1,$(1))))
 101 $(call Build/$(word 1,$(1)),$(wordlist 2,$(words $(1)),$(1)))
 102
 103 endef
 104
 105 define concat_cmd
 106 $(call split_args,$(1),build_cmd)
 107 endef
 108
 109 # pad to 4k, 8k, 16k, 64k, 128k, 256k and add jffs2 end-of-filesystem mark
 110 define prepare_generic_squashfs
 111         $(STAGING_DIR_HOST)/bin/padjffs2 $(1) 4 8 16 64 128 256
 112 endef
 113
 114 define Image/BuildKernel/Initramfs
 115         $(call Image/Build/Initramfs)
 116 endef
 117
 118 define Image/BuildKernel/MkuImage
 119         mkimage -A $(ARCH) -O linux -T kernel -C $(1) -a $(2) -e $(3) \
 120                 -n '$(call toupper,$(ARCH)) LEDE Linux-$(LINUX_VERSION)' -d $(4) $(5)
 121 endef
 122
 123 define Image/BuildKernel/MkFIT
 124         $(TOPDIR)/scripts/mkits.sh \
 125                 -D $(1) -o $(KDIR)/fit-$(1).its -k $(2) $(if $(3),-d $(3)) -C $(4) -a $(5) -e $(6) \
 126                 -A $(ARCH) -v $(LINUX_VERSION)
 127         PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $(KDIR)/fit-$(1).its $(KDIR)/fit-$(1)$(7).itb
 128 endef
 129
 130 # $(1) source dts file
 131 # $(2) target dtb file
 132 # $(3) extra CPP flags
 133 # $(4) extra DTC flags
 134 define Image/BuildDTB
 135         $(TARGET_CROSS)cpp -nostdinc -x assembler-with-cpp \
 136                 -I$(DTS_DIR) \
 137                 -I$(DTS_DIR)/include \
 138                 -undef -D__DTS__ $(3) \
 139                 -o $(2).tmp $(1)
 140         $(LINUX_DIR)/scripts/dtc/dtc -O dtb \
 141                 -i$(dir $(1)) $(4) \
 142                 -o $(2) $(2).tmp
 143         $(RM) $(2).tmp
 144 endef
 145
 146 define Image/mkfs/jffs2/sub
 147                 $(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 '/^.+$$$$/'
 148                 $(call add_jffs2_mark,$(KDIR)/root.jffs2-$(2))
 149 endef
 150
 151 define Image/mkfs/jffs2/sub-raw
 152                 $(STAGING_DIR_HOST)/bin/mkfs.jffs2 $(3) -e $(patsubst %k,%KiB,$(1)) -o $(KDIR)/root.jffs2-$(2)-raw -d $(TARGET_DIR) -v 2>&1 1>/dev/null | awk '/^.+$$$$/'
 153 endef
 154
 155 define Image/mkfs/jffs2/template
 156   Image/mkfs/jffs2-$(1) = $$(call Image/mkfs/jffs2/sub,$(1),$(1),$(JFFS2OPTS))
 157   Image/mkfs/jffs2-$(1)-raw = $$(call Image/mkfs/jffs2/sub-raw,$(1),$(1),$(JFFS2OPTS))
 158
 159 endef
 160
 161 define Image/mkfs/jffs2-nand/template
 162   Image/mkfs/jffs2-nand-$(1) = \
 163         $$(call Image/mkfs/jffs2/sub, \
 164                 $(word 2,$(subst -, ,$(1))),nand-$(1), \
 165                         $(JFFS2OPTS) --no-cleanmarkers --pagesize=$(word 1,$(subst -, ,$(1))))
 166
 167 endef
 168
 169 $(eval $(foreach S,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/template,$(S))))
 170 $(eval $(foreach S,$(NAND_BLOCKSIZE),$(call Image/mkfs/jffs2-nand/template,$(S))))
 171
 172 define Image/mkfs/squashfs
 173         $(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))
 174 endef
 175
 176 # $(1): board name
 177 # $(2): rootfs type
 178 # $(3): kernel image
 179 ifneq ($(CONFIG_NAND_SUPPORT),)
 180    define Image/Build/SysupgradeNAND
 181         mkdir -p "$(KDIR_TMP)/sysupgrade-$(1)/"
 182         echo "BOARD=$(1)" > "$(KDIR_TMP)/sysupgrade-$(1)/CONTROL"
 183         [ -z "$(2)" ] || $(CP) "$(KDIR)/root.$(2)" "$(KDIR_TMP)/sysupgrade-$(1)/root"
 184         [ -z "$(3)" ] || $(CP) "$(3)" "$(KDIR_TMP)/sysupgrade-$(1)/kernel"
 185         (cd "$(KDIR_TMP)"; $(TAR) cvf \
 186                 "$(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2)-sysupgrade.tar" sysupgrade-$(1) \
 187                         $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
 188         )
 189    endef
 190
 191 # $(1) board name
 192 # $(2) ubinize-image options (e.g. --uboot-env and/or --kernel kernelimage)
 193 # $(3) rootfstype (e.g. squashfs or ubifs)
 194 # $(4) options to pass-through to ubinize (i.e. $($(PROFILE)_UBI_OPTS)))
 195    define Image/Build/UbinizeImage
 196         sh $(TOPDIR)/scripts/ubinize-image.sh $(2) \
 197                 "$(KDIR)/root.$(3)" \
 198                 "$(KDIR)/$(IMG_PREFIX)-$(1)-$(3)-ubinized.bin" \
 199                 $(4)
 200    endef
 201
 202 endif
 203
 204 ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
 205     define Image/mkfs/ubifs/generate
 206         $(CP) ./ubinize$(1).cfg $(KDIR)
 207         ( cd $(KDIR); \
 208                 $(STAGING_DIR_HOST)/bin/ubinize \
 209                 $(if $($(PROFILE)_UBI_OPTS), \
 210                         $(shell echo $($(PROFILE)_UBI_OPTS)), \
 211                         $(shell echo $(UBI_OPTS)) \
 212                 ) \
 213                 -o $(KDIR)/root$(1).ubi \
 214                 ubinize$(1).cfg \
 215         )
 216     endef
 217
 218     define Image/mkfs/ubifs
 219
 220         ifneq ($($(PROFILE)_UBIFS_OPTS)$(UBIFS_OPTS),)
 221                 $(STAGING_DIR_HOST)/bin/mkfs.ubifs \
 222                         $(if $($(PROFILE)_UBIFS_OPTS), \
 223                                 $(shell echo $($(PROFILE)_UBIFS_OPTS)), \
 224                                 $(shell echo $(UBIFS_OPTS)) \
 225                         ) \
 226                         $(if $(CONFIG_TARGET_UBIFS_FREE_SPACE_FIXUP),--space-fixup) \
 227                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_NONE),--force-compr=none) \
 228                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_LZO),--force-compr=lzo) \
 229                         $(if $(CONFIG_TARGET_UBIFS_COMPRESSION_ZLIB),--force-compr=zlib) \
 230                         $(if $(shell echo $(CONFIG_TARGET_UBIFS_JOURNAL_SIZE)),--jrn-size=$(CONFIG_TARGET_UBIFS_JOURNAL_SIZE)) \
 231                         --squash-uids \
 232                         -o $(KDIR)/root.ubifs \
 233                         -d $(TARGET_DIR)
 234         endif
 235         $(call Image/Build,ubifs)
 236
 237         ifneq ($($(PROFILE)_UBI_OPTS)$(UBI_OPTS),)
 238                 $(if $(wildcard ./ubinize.cfg),$(call Image/mkfs/ubifs/generate,))
 239                 $(if $(wildcard ./ubinize-overlay.cfg),$(call Image/mkfs/ubifs/generate,-overlay))
 240         endif
 241         $(if $(wildcard ./ubinize.cfg),$(call Image/Build,ubi))
 242     endef
 243 endif
 244
 245 define Image/mkfs/cpiogz
 246         ( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9n >$(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz )
 247 endef
 248
 249 define Image/mkfs/targz
 250         $(TAR) -cp --numeric-owner --owner=0 --group=0 --sort=name \
 251                 $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
 252                 -C $(TARGET_DIR)/ . | gzip -9n > $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-$(PROFILE_SANITIZED))-rootfs.tar.gz
 253 endef
 254
 255 E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024*1024)))
 256
 257 define Image/mkfs/ext4
 258         $(STAGING_DIR_HOST)/bin/make_ext4fs \
 259                 -l $(E2SIZE) -b $(CONFIG_TARGET_EXT4_BLOCKSIZE) \
 260                 -i $(CONFIG_TARGET_EXT4_MAXINODE) \
 261                 -m $(CONFIG_TARGET_EXT4_RESERVED_PCT) \
 262                 $(if $(CONFIG_TARGET_EXT4_JOURNAL),,-J) \
 263                 $(if $(SOURCE_DATE_EPOCH),-T $(SOURCE_DATE_EPOCH)) \
 264                 $(KDIR)/root.ext4 $(TARGET_DIR)/
 265 endef
 266
 267 define Image/mkfs/prepare/default
 268         # Use symbolic permissions to avoid clobbering SUID/SGID/sticky bits
 269         - $(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
 270         - $(FIND) $(TARGET_DIR) -type f -perm /0100 -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 271         - $(FIND) $(TARGET_DIR) -type d -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
 272         $(INSTALL_DIR) $(TARGET_DIR)/tmp $(TARGET_DIR)/overlay
 273         chmod 1777 $(TARGET_DIR)/tmp
 274 endef
 275
 276 define Image/mkfs/prepare
 277         $(call Image/mkfs/prepare/default)
 278 endef
 279
 280
 281 define Image/Checksum
 282         ( cd ${BIN_DIR} ; \
 283                 $(FIND) -maxdepth 1 -type f \! -name 'md5sums'  -printf "%P\n" | sort | xargs $1 > $2 \
 284         )
 285 endef
 286
 287 define BuildImage/mkfs
 288   install: mkfs-$(1)
 289   .PHONY: mkfs-$(1)
 290   mkfs-$(1): kernel_prepare
 291         $(Image/mkfs/$(1))
 292         $(call Build/mkfs/default,$(1))
 293         $(call Build/mkfs/$(1),$(1))
 294   $(KDIR)/root.$(1): mkfs-$(1)
 295
 296 endef
 297
 298 # Build commands that can be called from Device/* templates
 299 define Build/uImage
 300         mkimage -A $(LINUX_KARCH) \
 301                 -O linux -T kernel \
 302                 -C $(1) -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
 303                 -n '$(call toupper,$(LINUX_KARCH)) LEDE Linux-$(LINUX_VERSION)' -d $@ $@.new
 304         @mv $@.new $@
 305 endef
 306
 307 define Build/netgear-chk
 308         $(STAGING_DIR_HOST)/bin/mkchkimg \
 309                 -o $@.new \
 310                 -k $@ \
 311                 -b $(NETGEAR_BOARD_ID) \
 312                 -r $(NETGEAR_REGION)
 313         mv $@.new $@
 314 endef
 315
 316 define Build/netgear-dni
 317         $(STAGING_DIR_HOST)/bin/mkdniimg \
 318                 -B $(NETGEAR_BOARD_ID) -v LEDE.$(REVISION) \
 319                 $(if $(NETGEAR_HW_ID),-H $(NETGEAR_HW_ID)) \
 320                 -r "$(1)" \
 321                 -i $@ -o $@.new
 322         mv $@.new $@
 323 endef
 324
 325 define Build/fit
 326         $(TOPDIR)/scripts/mkits.sh \
 327                 -D $(DEVICE_NAME) -o $@.its -k $@ \
 328                 $(if $(word 2,$(1)),-d $(word 2,$(1))) -C $(word 1,$(1)) \
 329                 -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
 330                 -A $(ARCH) -v $(LINUX_VERSION)
 331         PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $@.its $@.new
 332         @mv $@.new $@
 333 endef
 334
 335 define Build/lzma
 336         $(call Build/lzma-no-dict,-lc1 -lp2 -pb2 $(1))
 337 endef
 338
 339 define Build/lzma-no-dict
 340         $(STAGING_DIR_HOST)/bin/lzma e $@ $(1) $@.new
 341         @mv $@.new $@
 342 endef
 343
 344 define Build/gzip
 345         gzip -9n -c $@ $(1) > $@.new
 346         @mv $@.new $@
 347 endef
 348
 349 define Build/jffs2
 350         rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 && \
 351                 mkdir -p $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$$(dirname $(1)) && \
 352                 cp $@ $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$(1) && \
 353                 $(STAGING_DIR_HOST)/bin/mkfs.jffs2 --pad \
 354                         $(if $(CONFIG_BIG_ENDIAN),--big-endian,--little-endian) \
 355                         --squash-uids -v -e $(patsubst %k,%KiB,$(BLOCKSIZE)) \
 356                         -o $@.new \
 357                         -d $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 \
 358                         2>&1 1>/dev/null | awk '/^.+$$$$/' && \
 359                 $(STAGING_DIR_HOST)/bin/padjffs2 $@.new -J $(patsubst %k,,$(BLOCKSIZE))
 360         -rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/
 361         @mv $@.new $@
 362 endef
 363
 364 define Build/kernel-bin
 365         rm -f $@
 366         cp $< $@
 367 endef
 368
 369 define Build/patch-cmdline
 370         $(STAGING_DIR_HOST)/bin/patch-cmdline $@ '$(CMDLINE)'
 371 endef
 372
 373 define Build/append-kernel
 374         dd if=$(word 1,$^) $(if $(1),bs=$(1) conv=sync) >> $@
 375 endef
 376
 377 define Build/append-rootfs
 378         dd if=$(word 2,$^) $(if $(1),bs=$(1) conv=sync) >> $@
 379 endef
 380
 381 define Build/append-ubi
 382         sh $(TOPDIR)/scripts/ubinize-image.sh \
 383                 $(if $(UBOOTENV_IN_UBI),--uboot-env) \
 384                 $(if $(KERNEL_IN_UBI),--kernel $(word 1,$^)) \
 385                 $(word 2,$^) \
 386                 $@.tmp \
 387                 -p $(BLOCKSIZE) -m $(PAGESIZE) -E 5 \
 388                 $(if $(SUBPAGESIZE),-s $(SUBPAGESIZE))
 389         cat $@.tmp >> $@
 390         rm $@.tmp
 391 endef
 392
 393 define Build/pad-to
 394         dd if=$@ of=$@.new bs=$(1) conv=sync
 395         mv $@.new $@
 396 endef
 397
 398 define Build/pad-rootfs
 399         $(call prepare_generic_squashfs,$@ $(1))
 400 endef
 401
 402 define Build/pad-offset
 403         let \
 404                 size="$$(stat -c%s $@)" \
 405                 pad="$(word 1, $(1))" \
 406                 offset="$(word 2, $(1))" \
 407                 pad="(pad - ((size + offset) % pad)) % pad" \
 408                 newsize='size + pad'; \
 409                 dd if=$@ of=$@.new bs=$$newsize count=1 conv=sync
 410         mv $@.new $@
 411 endef
 412
 413 define Build/check-size
 414         @[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -ge "$$(stat -c%s $@)" ] || { \
 415                 echo "WARNING: Image file $@ is too big" >&2; \
 416                 rm -f $@; \
 417         }
 418 endef
 419
 420 define Build/combined-image
 421         -sh $(TOPDIR)/scripts/combined-image.sh \
 422                 "$(word 1,$^)" \
 423                 "$@" \
 424                 "$@.new"
 425         @mv $@.new $@
 426 endef
 427
 428 define Build/sysupgrade-nand
 429         sh $(TOPDIR)/scripts/sysupgrade-nand.sh \
 430                 --board $(if $(BOARD_NAME),$(BOARD_NAME),$(DEVICE_NAME)) \
 431                 --kernel $(word 1,$^) \
 432                 --rootfs $(word 2,$^) \
 433                 $@
 434 endef
 435
 436 define Device/Init
 437   PROFILES := $(PROFILE)
 438   SUBTARGETS := $(SUBTARGET)
 439   DEVICE_NAME := $(1)
 440   DEVICE_TITLE :=
 441   DEVICE_PACKAGES :=
 442   DEVICE_DESCRIPTION = Build firmware images for $$(DEVICE_TITLE)
 443   KERNEL:=
 444   KERNEL_INITRAMFS = $$(KERNEL)
 445   KERNEL_SIZE:=
 446   CMDLINE:=
 447
 448   IMAGE_PREFIX := $(IMG_PREFIX)-$(1)
 449   IMAGE_NAME = $$(IMAGE_PREFIX)-$$(1)-$$(2)
 450   KERNEL_PREFIX = $(1)
 451   KERNEL_SUFFIX := -kernel.bin
 452   KERNEL_IMAGE = $$(KERNEL_PREFIX)$$(KERNEL_SUFFIX)
 453   KERNEL_INITRAMFS_PREFIX = $$(IMAGE_PREFIX)-initramfs
 454   KERNEL_INITRAMFS_IMAGE = $$(KERNEL_INITRAMFS_PREFIX)$$(KERNEL_SUFFIX)
 455   KERNEL_INITRAMFS_NAME = $$(KERNEL_NAME)-initramfs
 456   KERNEL_INSTALL :=
 457   KERNEL_NAME := vmlinux
 458   KERNEL_DEPENDS :=
 459   KERNEL_SIZE :=
 460
 461   FILESYSTEMS := $(TARGET_FILESYSTEMS)
 462 endef
 463
 464 define Device/ExportVar
 465   $(1) : $(2):=$$($(2))
 466
 467 endef
 468 define Device/Export
 469   $(foreach var,$(DEVICE_VARS) DEVICE_NAME KERNEL KERNEL_INITRAMFS KERNEL_INITRAMFS_IMAGE,$(call Device/ExportVar,$(1),$(var)))
 470   $(1) : FILESYSTEM:=$(2)
 471 endef
 472
 473 define Device/Check
 474   _TARGET = $$(if $$(and $(if $(SUBTARGET),,1)$$(filter $(SUBTARGET),$$(SUBTARGETS)),$$(filter $(PROFILE),$$(PROFILES) DEVICE_$(1))),install,install-disabled)
 475   _COMPILE_TARGET = $$(if $(if $(IB),,$(CONFIG_IB)$$(filter $(PROFILE),$$(PROFILES) DEVICE_$(1))),compile,compile-disabled)
 476 endef
 477
 478 ifndef IB
 479 define Device/Build/initramfs
 480   $(call Device/Export,$(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE),$(1))
 481   $$(_TARGET): $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE)
 482
 483   $(KDIR)/$$(KERNEL_INITRAMFS_NAME):: image_prepare
 484   $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE)
 485         cp $$^ $$@
 486
 487   $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/$$(KERNEL_INITRAMFS_NAME) $(CURDIR)/Makefile $$(KERNEL_DEPENDS)
 488         @rm -f $$@
 489         $$(call concat_cmd,$$(KERNEL_INITRAMFS))
 490 endef
 491 endif
 492
 493 define Device/Build/check_size
 494         @[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -ge "$$(stat -c%s $@)" ] || { \
 495                 echo "WARNING: Image file $@ is too big" >&2; \
 496                 rm -f $@; \
 497         }
 498 endef
 499
 500 define Device/Build/compile
 501   $$(_COMPILE_TARGET): $(KDIR)/$(1)
 502   $(eval $(call Device/Export,$(KDIR)/$(1)))
 503   $(KDIR)/$(1):
 504         $$(call concat_cmd,$(COMPILE/$(1)))
 505
 506 endef
 507
 508 define Device/Build/kernel
 509   _KERNEL_IMAGES += $(KDIR)/$$(KERNEL_NAME)
 510   $(KDIR)/$$(KERNEL_NAME):: image_prepare
 511   $$(_TARGET): $$(if $$(KERNEL_INSTALL),$(BIN_DIR)/$$(KERNEL_IMAGE))
 512   $(call Device/Export,$(KDIR)/$$(KERNEL_IMAGE),$(1))
 513   $(BIN_DIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_IMAGE)
 514         cp $$^ $$@
 515   ifndef IB
 516     ifdef CONFIG_IB
 517       install: $(KDIR)/$$(KERNEL_IMAGE)
 518     endif
 519     $(KDIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_NAME) $(CURDIR)/Makefile $$(KERNEL_DEPENDS)
 520         @rm -f $$@
 521         $$(call concat_cmd,$$(KERNEL))
 522         $$(if $$(KERNEL_SIZE),$$(call Device/Build/check_size,$$(KERNEL_SIZE)))
 523   endif
 524 endef
 525
 526 define Device/Build/image
 527   $$(_TARGET): $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2))
 528   $(eval $(call Device/Export,$(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2)),$(1)))
 529   $(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2)): $(KDIR)/$$(KERNEL_IMAGE) $(KDIR)/root.$(1)
 530         @rm -f $$@
 531         [ -f $$(word 1,$$^) -a -f $$(word 2,$$^) ]
 532         $$(call concat_cmd,$(if $(IMAGE/$(2)/$(1)),$(IMAGE/$(2)/$(1)),$(IMAGE/$(2))))
 533
 534   .IGNORE: $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2))
 535   $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2)): $(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2))
 536         cp $$^ $$@
 537
 538 endef
 539
 540 define Device/Build
 541   $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(call Device/Build/initramfs,$(1)))
 542   $(call Device/Build/kernel,$(1))
 543
 544   $$(eval $$(foreach compile,$$(COMPILE), \
 545     $$(call Device/Build/compile,$$(compile),$(1))))
 546
 547   $$(eval $$(foreach image,$$(IMAGES), \
 548     $$(foreach fs,$$(filter $(TARGET_FILESYSTEMS),$$(FILESYSTEMS)), \
 549       $$(call Device/Build/image,$$(fs),$$(image),$(1)))))
 550 endef
 551
 552 define Device/DumpInfo
 553 Target-Profile: DEVICE_$(1)
 554 Target-Profile-Name: $(DEVICE_TITLE)
 555 Target-Profile-Packages: $(DEVICE_PACKAGES)
 556 Target-Profile-Description:
 557 $(DEVICE_DESCRIPTION)
 558 @@
 559
 560 endef
 561
 562 DEVICE_PROFILE_CHECK=$(and $(DEVICE_TITLE),$(if $(SUBTARGET),,1)$(filter $(SUBTARGET),$(SUBTARGETS)))
 563
 564 define Device/Dump
 565 $$(eval $$(if $$(DEVICE_PROFILE_CHECK),$$(info $$(call Device/DumpInfo,$(1)))))
 566 endef
 567
 568 define Device
 569   $(call Device/Init,$(1))
 570   $(call Device/Default,$(1))
 571   $(call Device/Check,$(1))
 572   $(call Device/$(1),$(1))
 573   $(call Device/$(if $(DUMP),Dump,Build),$(1))
 574
 575 endef
 576
 577 define BuildImage
 578
 579   ifneq ($(DUMP),)
 580     all: dumpinfo
 581     dumpinfo: FORCE
 582         @true
 583   endif
 584
 585   download:
 586   prepare:
 587   compile:
 588   clean:
 589   image_prepare:
 590
 591   ifeq ($(IB),)
 592     .PHONY: download prepare compile clean image_prepare mkfs_prepare kernel_prepare install
 593     compile:
 594                 $(call Build/Compile)
 595
 596     clean:
 597                 $(call Build/Clean)
 598
 599     image_prepare: compile
 600                 mkdir -p $(BIN_DIR) $(KDIR)/tmp
 601                 $(call Image/Prepare)
 602   else
 603     image_prepare:
 604                 mkdir -p $(BIN_DIR) $(KDIR)/tmp
 605   endif
 606
 607   mkfs_prepare: image_prepare
 608         $(call Image/mkfs/prepare)
 609
 610   kernel_prepare: mkfs_prepare
 611         $(call Image/BuildKernel)
 612         $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(if $(IB),,$(call Image/BuildKernel/Initramfs)))
 613         $(call Image/InstallKernel)
 614
 615   $(foreach device,$(TARGET_DEVICES),$(call Device,$(device)))
 616   $(foreach fs,$(TARGET_FILESYSTEMS) $(fs-subtypes-y),$(call BuildImage/mkfs,$(fs)))
 617
 618   install: kernel_prepare
 619         $(foreach fs,$(TARGET_FILESYSTEMS),
 620                 $(call Image/Build,$(fs))
 621         )
 622         $(call Image/mkfs/ubifs)
 623         $(call Image/Checksum,md5sum --binary,md5sums)
 624         $(call Image/Checksum,openssl dgst -sha256,sha256sums)
 625
 626 endef