# -*- mode: Makefile; -*- # A debug build of Xen and tools? debug ?= y XEN_COMPILE_ARCH ?= $(shell uname -m | sed -e s/i.86/x86_32/ \ -e s/i86pc/x86_32/ -e s/amd64/x86_64/) XEN_TARGET_ARCH ?= $(XEN_COMPILE_ARCH) XEN_OS ?= $(shell uname -s) CONFIG_$(XEN_OS) := y SHELL ?= /bin/sh # Tools to run on system hosting the build HOSTCC = gcc HOSTCFLAGS = -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer HOSTCFLAGS += -fno-strict-aliasing DISTDIR ?= $(XEN_ROOT)/dist DESTDIR ?= / # Allow phony attribute to be listed as dependency rather than fake target .PHONY: .phony include $(XEN_ROOT)/config/$(XEN_OS).mk include $(XEN_ROOT)/config/$(XEN_TARGET_ARCH).mk SHAREDIR ?= $(PREFIX)/share DOCDIR ?= $(SHAREDIR)/doc/xen MANDIR ?= $(SHAREDIR)/man ifneq ($(EXTRA_PREFIX),) EXTRA_INCLUDES += $(EXTRA_PREFIX)/include EXTRA_LIB += $(EXTRA_PREFIX)/$(LIBLEAFDIR) endif PYTHON ?= python PYTHON_PREFIX_ARG ?= --prefix="$(PREFIX)" # The above requires that PREFIX contains *no spaces*. This variable is here # to permit the user to set PYTHON_PREFIX_ARG to '' to workaround this bug: # https://bugs.launchpad.net/ubuntu/+bug/362570 # cc-option: Check if compiler supports first option, else fall back to second. # Usage: cflags-y += $(call cc-option,$(CC),-march=winchip-c6,-march=i586) cc-option = $(shell if test -z "`$(1) $(2) -S -o /dev/null -xc \ /dev/null 2>&1`"; then echo "$(2)"; else echo "$(3)"; fi ;) # cc-option-add: Add an option to compilation flags, but only if supported. # Usage: $(call cc-option-add CFLAGS,CC,-march=winchip-c6) cc-option-add = $(eval $(call cc-option-add-closure,$(1),$(2),$(3))) define cc-option-add-closure ifneq ($$(call cc-option,$$($(2)),$(3),n),n) $(1) += $(3) endif endef # cc-ver: Check compiler is at least specified version. Return boolean 'y'/'n'. # Usage: ifeq ($(call cc-ver,$(CC),0x030400),y) cc-ver = $(shell if [ $$((`$(1) -dumpversion | awk -F. \ '{ printf "0x%02x%02x%02x", $$1, $$2, $$3}'`)) -ge $$(($(2))) ]; \ then echo y; else echo n; fi ;) # cc-ver-check: Check compiler is at least specified version, else fail. # Usage: $(call cc-ver-check,CC,0x030400,"Require at least gcc-3.4") cc-ver-check = $(eval $(call cc-ver-check-closure,$(1),$(2),$(3))) define cc-ver-check-closure ifeq ($$(call cc-ver,$$($(1)),$(2)),n) override $(1) = echo "*** FATAL BUILD ERROR: "$(3) >&2; exit 1; cc-option := n endif endef define absolutify_xen_root case "$(XEN_ROOT)" in \ /*) XEN_ROOT=$(XEN_ROOT) ;; \ *) xen_root_lhs=`pwd`; \ xen_root_rhs=$(XEN_ROOT)/; \ while [ "x$${xen_root_rhs#../}" != "x$$xen_root_rhs" ]; do \ xen_root_rhs="$${xen_root_rhs#../}"; \ xen_root_rhs="$${xen_root_rhs#/}"; \ xen_root_rhs="$${xen_root_rhs#/}"; \ xen_root_lhs="$${xen_root_lhs%/*}"; \ done; \ XEN_ROOT="$$xen_root_lhs/$$xen_root_rhs" ;; \ esac; \ export XEN_ROOT endef define buildmakevars2shellvars PREFIX="$(PREFIX)"; \ XEN_SCRIPT_DIR="$(XEN_SCRIPT_DIR)"; \ export PREFIX; \ export XEN_SCRIPT_DIR endef buildmakevars2file = $(eval $(call buildmakevars2file-closure,$(1))) define buildmakevars2file-closure .PHONY: genpath genpath: rm -f $(1); \ echo "SBINDIR=\"$(SBINDIR)\"" >> $(1); \ echo "BINDIR=\"$(BINDIR)\"" >> $(1); \ echo "LIBEXEC=\"$(LIBEXEC)\"" >> $(1); \ echo "LIBDIR=\"$(LIBDIR)\"" >> $(1); \ echo "SHAREDIR=\"$(SHAREDIR)\"" >> $(1); \ echo "PRIVATE_BINDIR=\"$(PRIVATE_BINDIR)\"" >> $(1); \ echo "XENFIRMWAREDIR=\"$(XENFIRMWAREDIR)\"" >> $(1); \ echo "XEN_CONFIG_DIR=\"$(XEN_CONFIG_DIR)\"" >> $(1); \ echo "XEN_SCRIPT_DIR=\"$(XEN_SCRIPT_DIR)\"" >> $(1) endef ifeq ($(debug),y) CFLAGS += -g endif CFLAGS += -fno-strict-aliasing CFLAGS += -std=gnu99 CFLAGS += -Wall -Wstrict-prototypes # -Wunused-value makes GCC 4.x too aggressive for my taste: ignoring the # result of any casted expression causes a warning. CFLAGS += -Wno-unused-value $(call cc-option-add,HOSTCFLAGS,HOSTCC,-Wdeclaration-after-statement) $(call cc-option-add,CFLAGS,CC,-Wdeclaration-after-statement) LDFLAGS += $(foreach i, $(EXTRA_LIB), -L$(i)) CFLAGS += $(foreach i, $(EXTRA_INCLUDES), -I$(i)) # Enable XSM security module. Enabling XSM requires selection of an # XSM security module (FLASK_ENABLE or ACM_SECURITY). XSM_ENABLE ?= n FLASK_ENABLE ?= n ACM_SECURITY ?= n XEN_EXTFILES_URL=http://xenbits.xensource.com/xen-extfiles # All the files at that location were downloaded from elsewhere on # the internet. The original download URL is preserved as a comment # near the place in the Xen Makefiles where the file is used. # GIT protocol can be faster than HTTP, if your firewall lets it through. # QEMU_REMOTE=git://xenbits.xensource.com/qemu-xen-unstable.git QEMU_REMOTE=http://xenbits.xensource.com/git-http/qemu-xen-unstable.git # Specify which qemu-dm to use. This may be `ioemu' to use the old # Mercurial in-tree version, or a local directory, or a git URL. # CONFIG_QEMU ?= ../qemu-xen.git CONFIG_QEMU ?= $(QEMU_REMOTE) QEMU_TAG ?= f72b6e0ffc3bb84d4442c5a7493bffbdce2a4468 # Wed Nov 4 17:07:57 2009 +0000 # fix drive name parsing (any_hdN erroneous local declaration) OCAML_XENSTORED_REPO=http://xenbits.xensource.com/ext/xen-ocaml-tools.hg # Build OCAML version of xenstored instead of the in-tree C version? # This will cause $(OCAML_XENSTORED_REPO) to be cloned. CONFIG_OCAML_XENSTORED ?= n # Optional components XENSTAT_XENTOP ?= y VTPM_TOOLS ?= n LIBXENAPI_BINDINGS ?= n PYTHON_TOOLS ?= y CONFIG_MINITERM ?= n CONFIG_LOMOUNT ?= n -include $(XEN_ROOT)/.config >91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602
#
# Copyright (C) 2006-2010 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#

override TARGET_BUILD=
include $(INCLUDE_DIR)/prereq.mk
include $(INCLUDE_DIR)/kernel.mk
include $(INCLUDE_DIR)/host.mk
include $(INCLUDE_DIR)/version.mk

override MAKE:=$(_SINGLE)$(SUBMAKE)
override NO_TRACE_MAKE:=$(_SINGLE)$(NO_TRACE_MAKE)

KDIR=$(KERNEL_BUILD_DIR)
KDIR_TMP=$(KDIR)/tmp
DTS_DIR:=$(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/dts

IMG_PREFIX:=openwrt-$(if $(CONFIG_VERSION_FILENAMES),$(VERSION_NUMBER)-)$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))

MKFS_DEVTABLE_OPT := -D $(INCLUDE_DIR)/device_table.txt

ifneq ($(CONFIG_BIG_ENDIAN),)
  JFFS2OPTS     :=  --big-endian --squash-uids -v
else
  JFFS2OPTS     :=  --little-endian --squash-uids -v
endif

ifeq ($(CONFIG_JFFS2_RTIME),y)
  JFFS2OPTS += -X rtime
endif
ifeq ($(CONFIG_JFFS2_ZLIB),y)
  JFFS2OPTS += -X zlib
endif
ifeq ($(CONFIG_JFFS2_LZMA),y)
  JFFS2OPTS += -X lzma --compression-mode=size
endif
ifneq ($(CONFIG_JFFS2_RTIME),y)
  JFFS2OPTS += -x rtime
endif
ifneq ($(CONFIG_JFFS2_ZLIB),y)
  JFFS2OPTS += -x zlib
endif
ifneq ($(CONFIG_JFFS2_LZMA),y)
  JFFS2OPTS += -x lzma
endif

JFFS2OPTS += $(MKFS_DEVTABLE_OPT)

SQUASHFS_BLOCKSIZE := $(CONFIG_TARGET_SQUASHFS_BLOCK_SIZE)k
SQUASHFSOPT := -b $(SQUASHFS_BLOCKSIZE)
SQUASHFSOPT += -p '/dev d 755 0 0' -p '/dev/console c 600 0 0 5 1'
SQUASHFSCOMP := gzip
LZMA_XZ_OPTIONS := -Xpreset 9 -Xe -Xlc 0 -Xlp 2 -Xpb 2
ifeq ($(CONFIG_SQUASHFS_LZMA),y)
  SQUASHFSCOMP := lzma $(LZMA_XZ_OPTIONS)
endif
ifeq ($(CONFIG_SQUASHFS_XZ),y)
  ifneq ($(filter arm x86 powerpc sparc,$(LINUX_KARCH)),)
    BCJ_FILTER:=-Xbcj $(LINUX_KARCH)
  endif
  SQUASHFSCOMP := xz $(LZMA_XZ_OPTIONS) $(BCJ_FILTER)
endif

JFFS2_BLOCKSIZE ?= 64k 128k

fs-types-$(CONFIG_TARGET_ROOTFS_SQUASHFS) += squashfs
fs-types-$(CONFIG_TARGET_ROOTFS_JFFS2) += $(addprefix jffs2-,$(JFFS2_BLOCKSIZE))
fs-types-$(CONFIG_TARGET_ROOTFS_JFFS2_NAND) += $(addprefix jffs2-nand-,$(NAND_BLOCKSIZE))
fs-types-$(CONFIG_TARGET_ROOTFS_EXT4FS) += ext4
fs-types-$(CONFIG_TARGET_ROOTFS_ISO) += iso
fs-subtypes-$(CONFIG_TARGET_ROOTFS_JFFS2) += $(addsuffix -raw,$(addprefix jffs2-,$(JFFS2_BLOCKSIZE)))
fs-subtypes-$(CONFIG_TARGET_ROOTFS_CPIOGZ) += cpiogz
fs-subtypes-$(CONFIG_TARGET_ROOTFS_TARGZ) += targz

TARGET_FILESYSTEMS := $(fs-types-y)

FS_64K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-64k
FS_128K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-128k
FS_256K := $(filter-out jffs2-%,$(TARGET_FILESYSTEMS)) jffs2-256k

define add_jffs2_mark
	echo -ne '\xde\xad\xc0\xde' >> $(1)
endef

define toupper
$(shell echo $(1) | tr '[:lower:]' '[:upper:]')
endef

define tolower
$(shell echo $(1) | tr '[:upper:]' '[:lower:]')
endef

define sanitize
$(shell echo $(call tolower,$(1)) | sed 's/_/-/g')
endef

PROFILE_SANITIZED := $(call sanitize,$(PROFILE))

define split_args
$(foreach data, \
	$(subst |,$(space),\
		$(subst $(space),^,$(1))), \
	$(call $(2),$(strip $(subst ^,$(space),$(data)))))
endef

define build_cmd
$(if $(Build/$(word 1,$(1))),,$(error Missing Build/$(word 1,$(1))))
$(call Build/$(word 1,$(1)),$(wordlist 2,$(words $(1)),$(1)))

endef

define concat_cmd
$(call split_args,$(1),build_cmd)
endef

# pad to 4k, 8k, 16k, 64k, 128k, 256k and add jffs2 end-of-filesystem mark
define prepare_generic_squashfs
	$(STAGING_DIR_HOST)/bin/padjffs2 $(1) 4 8 16 64 128 256
endef

define Image/BuildKernel/Initramfs
	$(call Image/Build/Initramfs)
endef

define Image/BuildKernel/MkuImage
	mkimage -A $(ARCH) -O linux -T kernel -C $(1) -a $(2) -e $(3) \
		-n '$(call toupper,$(ARCH)) OpenWrt Linux-$(LINUX_VERSION)' -d $(4) $(5)
endef

define Image/BuildKernel/MkFIT
	$(TOPDIR)/scripts/mkits.sh \
		-D $(1) -o $(KDIR)/fit-$(1).its -k $(2) $(if $(3),-d $(3)) -C $(4) -a $(5) -e $(6) \
		-A $(ARCH) -v $(LINUX_VERSION)
	PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $(KDIR)/fit-$(1).its $(KDIR)/fit-$(1)$(7).itb
endef

# $(1) source dts file
# $(2) target dtb file
# $(3) extra CPP flags
# $(4) extra DTC flags
define Image/BuildDTB
	$(TARGET_CROSS)cpp -nostdinc -x assembler-with-cpp \
		-I$(DTS_DIR) \
		-I$(DTS_DIR)/include \
		-undef -D__DTS__ $(3) \
		-o $(2).tmp $(1)
	$(LINUX_DIR)/scripts/dtc/dtc -O dtb \
		-i$(dir $(1)) $(4) \
		-o $(2) $(2).tmp
	$(RM) $(2).tmp
endef

define Image/mkfs/jffs2/sub
		$(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 '/^.+$$$$/'
		$(call add_jffs2_mark,$(KDIR)/root.jffs2-$(2))
endef

define Image/mkfs/jffs2/sub-raw
		$(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 '/^.+$$$$/'
endef

define Image/mkfs/jffs2/template
  Image/mkfs/jffs2-$(1) = $$(call Image/mkfs/jffs2/sub,$(1),$(1),$(JFFS2OPTS))
  Image/mkfs/jffs2-$(1)-raw = $$(call Image/mkfs/jffs2/sub-raw,$(1),$(1),$(JFFS2OPTS))

endef

define Image/mkfs/jffs2-nand/template
  Image/mkfs/jffs2-nand-$(1) = \
	$$(call Image/mkfs/jffs2/sub, \
		$(word 2,$(subst -, ,$(1))),nand-$(1), \
			$(JFFS2OPTS) --no-cleanmarkers --pagesize=$(word 1,$(subst -, ,$(1))))

endef

$(eval $(foreach S,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/template,$(S))))
$(eval $(foreach S,$(NAND_BLOCKSIZE),$(call Image/mkfs/jffs2-nand/template,$(S))))

define Image/mkfs/squashfs
	$(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)
endef

# $(1): board name
# $(2): rootfs type
# $(3): kernel image
ifneq ($(CONFIG_NAND_SUPPORT),)
   define Image/Build/SysupgradeNAND
	mkdir -p "$(KDIR_TMP)/sysupgrade-$(1)/"
	echo "BOARD=$(1)" > "$(KDIR_TMP)/sysupgrade-$(1)/CONTROL"
	[ -z "$(2)" ] || $(CP) "$(KDIR)/root.$(2)" "$(KDIR_TMP)/sysupgrade-$(1)/root"
	[ -z "$(3)" ] || $(CP) "$(3)" "$(KDIR_TMP)/sysupgrade-$(1)/kernel"
	(cd "$(KDIR_TMP)"; $(TAR) cvf \
		"$(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2)-sysupgrade.tar" sysupgrade-$(1))
   endef

# $(1) board name
# $(2) ubinize-image options (e.g. --uboot-env and/or --kernel kernelimage)
# $(3) rootfstype (e.g. squashfs or ubifs)
# $(4) options to pass-through to ubinize (i.e. $($(PROFILE)_UBI_OPTS)))
   define Image/Build/UbinizeImage
	sh $(TOPDIR)/scripts/ubinize-image.sh $(2) \
		"$(KDIR)/root.$(3)" \
		"$(KDIR)/$(IMG_PREFIX)-$(1)-$(3)-ubinized.bin" \
		$(4)
   endef

endif

ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
    define Image/mkfs/ubifs/generate
	$(CP) ./ubinize$(1).cfg $(KDIR)
	( cd $(KDIR); \
		$(STAGING_DIR_HOST)/bin/ubinize \
		$(if $($(PROFILE)_UBI_OPTS), \
			$(shell echo $($(PROFILE)_UBI_OPTS)), \
			$(shell echo $(UBI_OPTS)) \
		) \
		-o $(KDIR)/root$(1).ubi \
		ubinize$(1).cfg \
	)
    endef

    define Image/mkfs/ubifs

        ifneq ($($(PROFILE)_UBIFS_OPTS)$(UBIFS_OPTS),)
		$(STAGING_DIR_HOST)/bin/mkfs.ubifs \
			$(if $($(PROFILE)_UBIFS_OPTS), \
				$(shell echo $($(PROFILE)_UBIFS_OPTS)), \
				$(shell echo $(UBIFS_OPTS)) \
			) \
			$(if $(CONFIG_TARGET_UBIFS_FREE_SPACE_FIXUP),--space-fixup) \
			$(if $(CONFIG_TARGET_UBIFS_COMPRESSION_NONE),--force-compr=none) \
			$(if $(CONFIG_TARGET_UBIFS_COMPRESSION_LZO),--force-compr=lzo) \
			$(if $(CONFIG_TARGET_UBIFS_COMPRESSION_ZLIB),--force-compr=zlib) \
			$(if $(shell echo $(CONFIG_TARGET_UBIFS_JOURNAL_SIZE)),--jrn-size=$(CONFIG_TARGET_UBIFS_JOURNAL_SIZE)) \
			--squash-uids \
			-o $(KDIR)/root.ubifs \
			-d $(TARGET_DIR)
        endif
	$(call Image/Build,ubifs)

        ifneq ($($(PROFILE)_UBI_OPTS)$(UBI_OPTS),)
		$(if $(wildcard ./ubinize.cfg),$(call Image/mkfs/ubifs/generate,))
		$(if $(wildcard ./ubinize-overlay.cfg),$(call Image/mkfs/ubifs/generate,-overlay))
        endif
	$(if $(wildcard ./ubinize.cfg),$(call Image/Build,ubi))
    endef
endif

define Image/mkfs/cpiogz
	( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9n >$(BIN_DIR)/$(IMG_PREFIX)-rootfs.cpio.gz )
endef

define Image/mkfs/targz
	$(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)/ .
endef

E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024*1024)))

define Image/mkfs/ext4
	$(STAGING_DIR_HOST)/bin/make_ext4fs \
		-l $(E2SIZE) -b $(CONFIG_TARGET_EXT4_BLOCKSIZE) \
		-i $(CONFIG_TARGET_EXT4_MAXINODE) \
		-m $(CONFIG_TARGET_EXT4_RESERVED_PCT) \
		$(if $(CONFIG_TARGET_EXT4_JOURNAL),,-J) \
		$(KDIR)/root.ext4 $(TARGET_DIR)/
endef

define Image/mkfs/prepare/default
	# Use symbolic permissions to avoid clobbering SUID/SGID/sticky bits
	- $(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
	- $(FIND) $(TARGET_DIR) -type f -perm /0100 -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
	- $(FIND) $(TARGET_DIR) -type d -print0 | $(XARGS) -0 chmod u+rwx,g+rx,o+rx
	$(INSTALL_DIR) $(TARGET_DIR)/tmp $(TARGET_DIR)/overlay
	chmod 1777 $(TARGET_DIR)/tmp
endef

define Image/mkfs/prepare
	$(call Image/mkfs/prepare/default)
endef


define Image/Checksum
	( cd ${BIN_DIR} ; \
		$(FIND) -maxdepth 1 -type f \! -name 'md5sums'  -printf "%P\n" | sort | xargs $1 > $2 \
	)
endef

define BuildImage/mkfs
  install: mkfs-$(1)
  .PHONY: mkfs-$(1)
  mkfs-$(1): kernel_prepare
	$(Image/mkfs/$(1))
	$(call Build/mkfs/default,$(1))
	$(call Build/mkfs/$(1),$(1))
  $(KDIR)/root.$(1): mkfs-$(1)

endef

# Build commands that can be called from Device/* templates
define Build/uImage
	mkimage -A $(LINUX_KARCH) \
		-O linux -T kernel \
		-C $(1) -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
		-n '$(call toupper,$(LINUX_KARCH)) OpenWrt Linux-$(LINUX_VERSION)' -d $@ $@.new
	@mv $@.new $@
endef

define Build/netgear-chk
	$(STAGING_DIR_HOST)/bin/mkchkimg \
		-o $@.new \
		-k $@ \
		-b $(NETGEAR_BOARD_ID) \
		-r $(NETGEAR_REGION)
	mv $@.new $@
endef

define Build/netgear-dni
	$(STAGING_DIR_HOST)/bin/mkdniimg \
		-B $(NETGEAR_BOARD_ID) -v OpenWrt.$(REVISION) \
		$(if $(NETGEAR_HW_ID),-H $(NETGEAR_HW_ID)) \
		-r "$(1)" \
		-i $@ -o $@.new
	mv $@.new $@
endef

define Build/fit
	$(TOPDIR)/scripts/mkits.sh \
		-D $(DEVICE_NAME) -o $@.its -k $@ \
		$(if $(word 2,$(1)),-d $(word 2,$(1))) -C $(word 1,$(1)) \
		-a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
		-A $(ARCH) -v $(LINUX_VERSION)
	PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $@.its $@.new
	@mv $@.new $@
endef

define Build/lzma
	$(STAGING_DIR_HOST)/bin/lzma e $@ -lc1 -lp2 -pb2 $(1) $@.new
	@mv $@.new $@
endef

define Build/gzip
	gzip -9n -c $@ $(1) > $@.new
	@mv $@.new $@
endef

define Build/jffs2
	rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 && \
		mkdir -p $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$$(dirname $(1)) && \
		cp $@ $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$(1) && \
		$(STAGING_DIR_HOST)/bin/mkfs.jffs2 --pad \
			$(if $(CONFIG_BIG_ENDIAN),--big-endian,--little-endian) \
			--squash-uids -v -e $(patsubst %k,%KiB,$(BLOCKSIZE)) \
			-o $@.new \
			-d $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 \
			2>&1 1>/dev/null | awk '/^.+$$$$/' && \
		$(STAGING_DIR_HOST)/bin/padjffs2 $@.new -J $(patsubst %k,,$(BLOCKSIZE))
	-rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/
	@mv $@.new $@
endef

define Build/kernel-bin
	rm -f $@
	cp $^ $@
endef

define Build/patch-cmdline
	$(STAGING_DIR_HOST)/bin/patch-cmdline $@ '$(CMDLINE)'
endef

define Build/append-kernel
	dd if=$(word 1,$^) $(if $(1),bs=$(1) conv=sync) >> $@
endef

define Build/append-rootfs
	dd if=$(word 2,$^) $(if $(1),bs=$(1) conv=sync) >> $@
endef

define Build/append-ubi
	sh $(TOPDIR)/scripts/ubinize-image.sh \
		$(if $(KERNEL_IN_UBI),--kernel $(word 1,$^)) \
		$(word 2,$^) \
		$@.tmp \
		-p $(BLOCKSIZE) -m $(PAGESIZE) -E 5 \
		$(if $(SUBPAGESIZE),-s $(SUBPAGESIZE))
	cat $@.tmp >> $@
	rm $@.tmp
endef

define Build/pad-to
	dd if=$@ of=$@.new bs=$(1) conv=sync
	mv $@.new $@
endef

define Build/pad-rootfs
	$(call prepare_generic_squashfs,$@ $(1))
endef

define Build/pad-offset
	let \
		size="$$(stat -c%s $@)" \
		pad="$(word 1, $(1))" \
		offset="$(word 2, $(1))" \
		pad="(pad - ((size + offset) % pad)) % pad" \
		newsize='size + pad'; \
		dd if=$@ of=$@.new bs=$$newsize count=1 conv=sync
	mv $@.new $@
endef

define Build/check-size
	@[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -ge "$$(stat -c%s $@)" ] || { \
		echo "WARNING: Image file $@ is too big" >&2; \
		rm -f $@; \
	}
endef

define Build/combined-image
	-sh $(TOPDIR)/scripts/combined-image.sh \
		"$(word 1,$^)" \
		"$@" \
		"$@.new"
	@mv $@.new $@
endef

define Build/sysupgrade-nand
	sh $(TOPDIR)/scripts/sysupgrade-nand.sh \
		--board $(if $(BOARD_NAME),$(BOARD_NAME),$(DEVICE_NAME)) \
		--kernel $(word 1,$^) \
		--rootfs $(word 2,$^) \
		$@
endef

define Device/Init
  PROFILES := $(PROFILE)
  DEVICE_NAME := $(1)
  KERNEL:=
  KERNEL_INITRAMFS = $$(KERNEL)
  KERNEL_SIZE:=
  CMDLINE:=

  IMAGE_PREFIX := $(IMG_PREFIX)-$(1)
  IMAGE_NAME = $$(IMAGE_PREFIX)-$$(1)-$$(2)
  KERNEL_PREFIX = $(1)
  KERNEL_SUFFIX := -kernel.bin
  KERNEL_IMAGE = $$(KERNEL_PREFIX)$$(KERNEL_SUFFIX)
  KERNEL_INITRAMFS_PREFIX = $$(IMAGE_PREFIX)-initramfs
  KERNEL_INITRAMFS_IMAGE = $$(KERNEL_INITRAMFS_PREFIX)$$(KERNEL_SUFFIX)
  KERNEL_INITRAMFS_NAME = $$(KERNEL_NAME)-initramfs
  KERNEL_INSTALL :=
  KERNEL_NAME := vmlinux
  KERNEL_SIZE :=

  FILESYSTEMS := $(TARGET_FILESYSTEMS)
endef

define Device/ExportVar
  $(1) : $(2):=$$($(2))

endef
define Device/Export
  $(foreach var,$(DEVICE_VARS) DEVICE_NAME KERNEL KERNEL_INITRAMFS,$(call Device/ExportVar,$(1),$(var)))
  $(1) : FILESYSTEM:=$(2)
endef

define Device/Check
  _TARGET = $$(if $$(filter $(PROFILE),$$(PROFILES)),install,install-disabled)
  _COMPILE_TARGET = $$(if $(if $(IB),,$(CONFIG_IB)$$(filter $(PROFILE),$$(PROFILES))),compile,compile-disabled)
endef

ifndef IB
define Device/Build/initramfs
  $(call Device/Export,$(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE),$(1))
  $$(_TARGET): $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE)

  $(KDIR)/$$(KERNEL_INITRAMFS_NAME): image_prepare
  $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE)
	cp $$^ $$@

  $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/$$(KERNEL_INITRAMFS_NAME)
	@rm -f $$@
	$$(call concat_cmd,$$(KERNEL_INITRAMFS))
endef
endif

define Device/Build/check_size
	@[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -ge "$$(stat -c%s $@)" ] || { \
		echo "WARNING: Image file $@ is too big" >&2; \
		rm -f $@; \
	}
endef

define Device/Build/compile
  $$(_COMPILE_TARGET): $(KDIR)/$(1)
  $(eval $(call Device/Export,$(KDIR)/$(1)))
  $(KDIR)/$(1):
	$$(call concat_cmd,$(COMPILE/$(1)))

endef

define Device/Build/kernel
  _KERNEL_IMAGES += $(KDIR)/$$(KERNEL_NAME)
  $(KDIR)/$$(KERNEL_NAME): image_prepare
  $$(_TARGET): $$(if $$(KERNEL_INSTALL),$(BIN_DIR)/$$(KERNEL_IMAGE))
  $(call Device/Export,$(KDIR)/$$(KERNEL_IMAGE),$(1))
  $(BIN_DIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_IMAGE)
	cp $$^ $$@
  ifndef IB
    ifdef CONFIG_IB
      install: $(KDIR)/$$(KERNEL_IMAGE)
    endif
    $(KDIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_NAME)
	@rm -f $$@
	$$(call concat_cmd,$$(KERNEL))
	$$(if $$(KERNEL_SIZE),$$(call Device/Build/check_size,$$(KERNEL_SIZE)))
  endif
endef

define Device/Build/image
  $$(_TARGET): $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2))
  $(eval $(call Device/Export,$(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2)),$(1)))
  $(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2)): $(KDIR)/$$(KERNEL_IMAGE) $(KDIR)/root.$(1)
	@rm -f $$@
	[ -f $$(word 1,$$^) -a -f $$(word 2,$$^) ]
	$$(call concat_cmd,$(if $(IMAGE/$(2)/$(1)),$(IMAGE/$(2)/$(1)),$(IMAGE/$(2))))

  .IGNORE: $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2))
  $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2)): $(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2))
	cp $$^ $$@

endef

define Device/Build
  $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(call Device/Build/initramfs,$(1)))
  $(call Device/Build/kernel,$(1))

  $$(eval $$(foreach compile,$$(COMPILE), \
    $$(call Device/Build/compile,$$(compile),$(1))))

  $$(eval $$(foreach image,$$(IMAGES), \
    $$(foreach fs,$$(filter $(TARGET_FILESYSTEMS),$$(FILESYSTEMS)), \
      $$(call Device/Build/image,$$(fs),$$(image),$(1)))))
endef

define Device
  $(call Device/Init,$(1))
  $(call Device/Default,$(1))
  $(call Device/Check,$(1))
  $(call Device/$(1),$(1))
  $(call Device/Build,$(1))

endef

define BuildImage

  download:
  prepare:
  compile:
  clean:
  image_prepare:

  ifeq ($(IB),)
    .PHONY: download prepare compile clean image_prepare mkfs_prepare kernel_prepare install
    compile:
		$(call Build/Compile)

    clean:
		$(call Build/Clean)

    image_prepare: compile
		mkdir -p $(KDIR)/tmp
		$(call Image/Prepare)
  else
    image_prepare:
		mkdir -p $(KDIR)/tmp
  endif

  mkfs_prepare: image_prepare
	$(call Image/mkfs/prepare)

  kernel_prepare: mkfs_prepare
	$(call Image/BuildKernel)
	$(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(if $(IB),,$(call Image/BuildKernel/Initramfs)))
	$(call Image/InstallKernel)

  $(foreach device,$(TARGET_DEVICES),$(call Device,$(device)))
  $(foreach fs,$(TARGET_FILESYSTEMS) $(fs-subtypes-y),$(call BuildImage/mkfs,$(fs)))

  $$(sort $$(_KERNEL_IMAGES)):
	@touch $$@

  install: kernel_prepare
	$(foreach fs,$(TARGET_FILESYSTEMS),
		$(call Image/Build,$(fs))
	)
	$(call Image/mkfs/ubifs)
	$(call Image/Checksum,md5sum --binary,md5sums)
	$(call Image/Checksum,openssl dgst -sha256,sha256sums)

endef