aboutsummaryrefslogtreecommitdiffstats
path: root/include/image-commands.mk
blob: dc6ee6e7c160c0935c3d72fb26b88c4ebcf4b028 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
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
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
# Build commands that can be called from Device/* templates

IMAGE_KERNEL = $(word 1,$^)
IMAGE_ROOTFS = $(word 2,$^)

define ModelNameLimit16
$(shell printf %.16s "$(word 2, $(subst _, ,$(1)))")
endef

define rootfs_align
$(patsubst %-256k,0x40000,$(patsubst %-128k,0x20000,$(patsubst %-64k,0x10000,$(patsubst squashfs%,0x4,$(patsubst root.%,%,$(1))))))
endef


define Build/append-dtb
	cat $(KDIR)/image-$(firstword $(DEVICE_DTS)).dtb >> $@
endef

define Build/append-dtb-elf
	$(TARGET_CROSS)objcopy \
		--set-section-flags=.appended_dtb=alloc,contents \
		--update-section \
		.appended_dtb=$(KDIR)/image-$(firstword $(DEVICE_DTS)).dtb $@
endef

define Build/append-kernel
	dd if=$(IMAGE_KERNEL) >> $@
endef

define Build/package-kernel-ubifs
	mkdir $@.kernelubifs
	cp $@ $@.kernelubifs/kernel
	$(STAGING_DIR_HOST)/bin/mkfs.ubifs \
		$(KERNEL_UBIFS_OPTS) \
		-r $@.kernelubifs $@
	rm -r $@.kernelubifs
endef

define Build/append-image
	cp "$(BIN_DIR)/$(DEVICE_IMG_PREFIX)-$(1)" "$@.stripmeta"
	fwtool -s /dev/null -t "$@.stripmeta" || :
	fwtool -i /dev/null -t "$@.stripmeta" || :
	dd if="$@.stripmeta" >> "$@"
	rm "$@.stripmeta"
endef

ifdef IB
define Build/append-image-stage
	dd if=$(STAGING_DIR_IMAGE)/$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))-$(DEVICE_NAME)-$(1) >> $@
endef
else
define Build/append-image-stage
	cp "$(BIN_DIR)/$(DEVICE_IMG_PREFIX)-$(1)" "$@.stripmeta"
	fwtool -s /dev/null -t "$@.stripmeta" || :
	fwtool -i /dev/null -t "$@.stripmeta" || :
	mkdir -p "$(STAGING_DIR_IMAGE)"
	dd if="$@.stripmeta" of="$(STAGING_DIR_IMAGE)/$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))-$(DEVICE_NAME)-$(1)"
	dd if="$@.stripmeta" >> "$@"
	rm "$@.stripmeta"
endef
endif


compat_version=$(if $(DEVICE_COMPAT_VERSION),$(DEVICE_COMPAT_VERSION),1.0)
json_quote=$(subst ','\'',$(subst ",\",$(1)))
#")')

legacy_supported_message=$(SUPPORTED_DEVICES) - Image version mismatch: image $(compat_version), \
	device 1.0. Please wipe config during upgrade (force required) or reinstall. \
	$(if $(DEVICE_COMPAT_MESSAGE),Reason: $(DEVICE_COMPAT_MESSAGE),Please check documentation ...)

metadata_devices=$(if $(1),$(subst "$(space)","$(comma)",$(strip $(foreach v,$(1),"$(call json_quote,$(v))"))))
metadata_json = \
	'{ $(if $(IMAGE_METADATA),$(IMAGE_METADATA)$(comma)) \
		"metadata_version": "1.1", \
		"compat_version": "$(call json_quote,$(compat_version))", \
		$(if $(DEVICE_COMPAT_MESSAGE),"compat_message": "$(call json_quote,$(DEVICE_COMPAT_MESSAGE))"$(comma)) \
		$(if $(filter-out 1.0,$(compat_version)),"new_supported_devices": \
			[$(call metadata_devices,$(SUPPORTED_DEVICES))]$(comma) \
			"supported_devices": ["$(call json_quote,$(legacy_supported_message))"]$(comma)) \
		$(if $(filter 1.0,$(compat_version)),"supported_devices":[$(call metadata_devices,$(SUPPORTED_DEVICES))]$(comma)) \
		"version": { \
			"dist": "$(call json_quote,$(VERSION_DIST))", \
			"version": "$(call json_quote,$(VERSION_NUMBER))", \
			"revision": "$(call json_quote,$(REVISION))", \
			"target": "$(call json_quote,$(TARGETID))", \
			"board": "$(call json_quote,$(if $(BOARD_NAME),$(BOARD_NAME),$(DEVICE_NAME)))" \
		} \
	}'

define Build/append-metadata
	$(if $(SUPPORTED_DEVICES),-echo $(call metadata_json) | fwtool -I - $@)
	sha256sum "$@" | cut -d" " -f1 > "$@.sha256sum"
	[ ! -s "$(BUILD_KEY)" -o ! -s "$(BUILD_KEY).ucert" -o ! -s "$@" ] || { \
		cp "$(BUILD_KEY).ucert" "$@.ucert" ;\
		usign -S -m "$@" -s "$(BUILD_KEY)" -x "$@.sig" ;\
		ucert -A -c "$@.ucert" -x "$@.sig" ;\
		fwtool -S "$@.ucert" "$@" ;\
	}
endef

define Build/append-rootfs
	dd if=$(IMAGE_ROOTFS) >> $@
endef

define Build/append-squashfs-fakeroot-be
	rm -rf $@.fakefs $@.fakesquashfs
	mkdir $@.fakefs
	$(STAGING_DIR_HOST)/bin/mksquashfs3-lzma \
		$@.fakefs $@.fakesquashfs \
		-noappend -root-owned -be -nopad -b 65536 \
		$(if $(SOURCE_DATE_EPOCH),-fixed-time $(SOURCE_DATE_EPOCH))
	cat $@.fakesquashfs >> $@
endef

define Build/append-squashfs4-fakeroot
	rm -rf $@.fakefs $@.fakesquashfs
	mkdir $@.fakefs
	$(STAGING_DIR_HOST)/bin/mksquashfs4 \
		$@.fakefs $@.fakesquashfs \
		-nopad -noappend -root-owned
	cat $@.fakesquashfs >> $@
endef

define Build/append-string
	echo -n $(1) >> $@
endef

define Build/append-md5sum-ascii-salted
	cp $@ $@.salted
	echo -ne $(1) >> $@.salted
	$(STAGING_DIR_HOST)/bin/mkhash md5 $@.salted | head -c32 >> $@
	rm $@.salted
endef

define Build/append-ubi
	sh $(TOPDIR)/scripts/ubinize-image.sh \
		$(if $(UBOOTENV_IN_UBI),--uboot-env) \
		$(if $(KERNEL_IN_UBI),--kernel $(IMAGE_KERNEL)) \
		$(foreach part,$(UBINIZE_PARTS),--part $(part)) \
		--rootfs $(IMAGE_ROOTFS) \
		$@.tmp \
		-p $(BLOCKSIZE:%k=%KiB) -m $(PAGESIZE) \
		$(if $(SUBPAGESIZE),-s $(SUBPAGESIZE)) \
		$(if $(VID_HDR_OFFSET),-O $(VID_HDR_OFFSET)) \
		$(UBINIZE_OPTS)
	cat $@.tmp >> $@
	rm $@.tmp
endef

define Build/ubinize-kernel
	cp $@ $@.tmp
	sh $(TOPDIR)/scripts/ubinize-image.sh \
		--kernel $@.tmp \
		$@ \
		-p $(BLOCKSIZE:%k=%KiB) -m $(PAGESIZE) \
		$(if $(SUBPAGESIZE),-s $(SUBPAGESIZE)) \
		$(if $(VID_HDR_OFFSET),-O $(VID_HDR_OFFSET)) \
		$(UBINIZE_OPTS)
	rm $@.tmp
endef

define Build/append-uboot
	dd if=$(UBOOT_PATH) >> $@
endef

# append a fake/empty uImage header, to fool bootloaders rootfs integrity check
# for example
define Build/append-uImage-fakehdr
	$(eval type=$(word 1,$(1)))
	$(eval magic=$(word 2,$(1)))
	touch $@.fakehdr
	$(STAGING_DIR_HOST)/bin/mkimage \
		-A $(LINUX_KARCH) -O linux -T $(type) -C none \
		-n '$(VERSION_DIST) fake $(type)' \
		$(if $(magic),-M $(magic)) \
		-d $@.fakehdr \
		-s \
		$@.fakehdr
	cat $@.fakehdr >> $@
endef

define Build/buffalo-dhp-image
	$(STAGING_DIR_HOST)/bin/mkdhpimg $@ $@.new
	mv $@.new $@
endef

define Build/buffalo-enc
	$(eval product=$(word 1,$(1)))
	$(eval version=$(word 2,$(1)))
	$(eval args=$(wordlist 3,$(words $(1)),$(1)))
	$(STAGING_DIR_HOST)/bin/buffalo-enc \
		-p $(product) -v $(version) $(args) \
		-i $@ -o $@.new
	mv $@.new $@
endef

define Build/buffalo-enc-tag
	$(call Build/buffalo-enc,'' '' -S 152 $(1))
endef

define Build/buffalo-tag-dhp
	$(eval product=$(word 1,$(1)))
	$(eval region=$(word 2,$(1)))
	$(eval language=$(word 3,$(1)))
	$(STAGING_DIR_HOST)/bin/buffalo-tag \
		-d 0x01000000 -w 1 \
		-a $(BUFFALO_TAG_PLATFORM) \
		-v $(BUFFALO_TAG_VERSION) -m $(BUFFALO_TAG_MINOR) \
		-b $(product) -p $(product) \
		-r $(region) -r $(region) -l $(language) \
		-I $@ -o $@.new
	mv $@.new $@
endef

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

define Build/copy-file
	cat "$(1)" > "$@"
endef

define Build/edimax-header
	$(STAGING_DIR_HOST)/bin/mkedimaximg -i $@ -o $@.new $(1)
	@mv $@.new $@
endef

define Build/elecom-product-header
	$(eval product=$(word 1,$(1)))
	$(eval fw=$(if $(word 2,$(1)),$(word 2,$(1)),$@))

	( \
		echo -n -e "ELECOM\x00\x00$(product)" | dd bs=40 count=1 conv=sync; \
		echo -n "0.00" | dd bs=16 count=1 conv=sync; \
		dd if=$(fw); \
	) > $(fw).new
	mv $(fw).new $(fw)
endef

define Build/elecom-wrc-gs-factory
	$(eval product=$(word 1,$(1)))
	$(eval version=$(word 2,$(1)))
	$(eval hash_opt=$(word 3,$(1)))
	$(MKHASH) md5 $(hash_opt) $@ >> $@
	( \
		echo -n "ELECOM $(product) v$(version)" | \
			dd bs=32 count=1 conv=sync; \
		dd if=$@; \
	) > $@.new
	mv $@.new $@
endef

define Build/elx-header
	$(eval hw_id=$(word 1,$(1)))
	$(eval xor_pattern=$(word 2,$(1)))
	( \
		echo -ne "\x00\x00\x00\x00\x00\x00\x00\x03" | \
			dd bs=42 count=1 conv=sync; \
		hw_id="$(hw_id)"; \
		echo -ne "\x$${hw_id:0:2}\x$${hw_id:2:2}\x$${hw_id:4:2}\x$${hw_id:6:2}" | \
			dd bs=20 count=1 conv=sync; \
		echo -ne "$$(printf '%08x' $$(stat -c%s $@) | fold -s2 | xargs -I {} echo \\x{} | tr -d '\n')" | \
			dd bs=8 count=1 conv=sync; \
		echo -ne "$$($(MKHASH) md5 $@ | fold -s2 | xargs -I {} echo \\x{} | tr -d '\n')" | \
			dd bs=58 count=1 conv=sync; \
	) > $(KDIR)/tmp/$(DEVICE_NAME).header
	$(call Build/xor-image,-p $(xor_pattern) -x)
	cat $(KDIR)/tmp/$(DEVICE_NAME).header $@ > $@.new
	mv $@.new $@
	rm -rf $(KDIR)/tmp/$(DEVICE_NAME).header
endef

define Build/eva-image
	$(STAGING_DIR_HOST)/bin/lzma2eva $(KERNEL_LOADADDR) $(KERNEL_LOADADDR) $@ $@.new
	mv $@.new $@
endef

define Build/initrd_compression
	$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_BZIP2),.bzip2) \
	$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_GZIP),.gzip) \
	$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZ4),.lz4) \
	$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZMA),.lzma) \
	$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZO),.lzo) \
	$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_XZ),.xz) \
	$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_ZSTD),.zstd)
endef

define Build/fit
	$(TOPDIR)/scripts/mkits.sh \
		-D $(DEVICE_NAME) -o $@.its -k $@ \
		-C $(word 1,$(1)) \
		$(if $(word 2,$(1)),\
			$(if $(findstring 11,$(if $(DEVICE_DTS_OVERLAY),1)$(if $(findstring $(KERNEL_BUILD_DIR)/image-,$(word 2,$(1))),,1)), \
				-d $(KERNEL_BUILD_DIR)/image-$$(basename $(word 2,$(1))), \
				-d $(word 2,$(1)))) \
		$(if $(findstring with-rootfs,$(word 3,$(1))),-r $(IMAGE_ROOTFS)) \
		$(if $(findstring with-initrd,$(word 3,$(1))), \
			$(if $(CONFIG_TARGET_ROOTFS_INITRAMFS_SEPARATE), \
				-i $(KERNEL_BUILD_DIR)/initrd.cpio$(strip $(call Build/initrd_compression)))) \
		-a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
		$(if $(DEVICE_FDT_NUM),-n $(DEVICE_FDT_NUM)) \
		$(if $(DEVICE_DTS_DELIMITER),-l $(DEVICE_DTS_DELIMITER)) \
		$(if $(DEVICE_DTS_LOADADDR),-s $(DEVICE_DTS_LOADADDR)) \
		$(if $(DEVICE_DTS_OVERLAY),$(foreach dtso,$(DEVICE_DTS_OVERLAY), -O $(dtso):$(KERNEL_BUILD_DIR)/image-$(dtso).dtbo)) \
		-c $(if $(DEVICE_DTS_CONFIG),$(DEVICE_DTS_CONFIG),"config-1") \
		-A $(LINUX_KARCH) -v $(LINUX_VERSION)
	PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage $(if $(findstring external,$(word 3,$(1))),\
		-E -B 0x1000 $(if $(findstring static,$(word 3,$(1))),-p 0x1000)) -f $@.its $@.new
	@mv $@.new $@
endef

define Build/libdeflate-gzip
	$(STAGING_DIR_HOST)/bin/libdeflate-gzip -f -12 -c $@ $(1) > $@.new
	@mv $@.new $@
endef

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

define Build/gzip-filename
	@mkdir -p $@.tmp
	@cp $@ $@.tmp/$(word 1,$(1))
	$(if $(SOURCE_DATE_EPOCH),touch -hcd "@$(SOURCE_DATE_EPOCH)" $@.tmp/$(word 1,$(1)) $(word 2,$(1)))
	$(STAGING_DIR_HOST)/bin/gzip -f -9 -N -c $@.tmp/$(word 1,$(1)) $(word 2,$(1)) > $@.new
	@mv $@.new $@
	@rm -rf $@.tmp
endef

define Build/install-dtb
	$(call locked, \
		$(foreach dts,$(DEVICE_DTS), \
			$(CP) \
				$(DTS_DIR)/$(dts).dtb \
				$(BIN_DIR)/$(IMG_PREFIX)-$(dts).dtb; \
		), \
		install-dtb-$(IMG_PREFIX) \
	)
endef

define Build/iptime-crc32
	$(STAGING_DIR_HOST)/bin/iptime-crc32 $(1) $@ $@.new
	mv $@.new $@
endef

define Build/iptime-naspkg
	$(STAGING_DIR_HOST)/bin/iptime-naspkg $(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/kernel2minor
	$(eval temp_file := $(shell mktemp))
	cp $@ $(temp_file)
	kernel2minor -k $(temp_file) -r $(temp_file).new $(1)
	mv $(temp_file).new $@
	rm -f $(temp_file)
endef

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

define Build/linksys-image
	$(TOPDIR)/scripts/linksys-image.sh \
		"$(call param_get_default,type,$(1),$(DEVICE_NAME))" \
		$@ $@.new
		mv $@.new $@
endef

define Build/lzma
	$(call Build/lzma-no-dict,-lc1 -lp2 -pb2 $(1))
endef

define Build/lzma-no-dict
	$(STAGING_DIR_HOST)/bin/lzma e $@ $(1) $@.new
	@mv $@.new $@
endef

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

define Build/netgear-dni
	$(STAGING_DIR_HOST)/bin/mkdniimg \
		-B $(NETGEAR_BOARD_ID) -v $(shell cat $(VERSION_DIST)| sed -e 's/[[:space:]]/-/g').$(firstword $(subst -, ,$(REVISION))) \
		$(if $(NETGEAR_HW_ID),-H $(NETGEAR_HW_ID)) \
		-r "$(1)" \
		-i $@ -o $@.new
	mv $@.new $@
endef

define Build/netgear-encrypted-factory
	$(TOPDIR)/scripts/netgear-encrypted-factory.py \
		--input-file $@ \
		--output-file $@ \
		--model $(NETGEAR_ENC_MODEL) \
		--region $(NETGEAR_ENC_REGION) \
		$(if $(NETGEAR_ENC_HW_ID_LIST),--hw-id-list "$(NETGEAR_ENC_HW_ID_LIST)") \
		$(if $(NETGEAR_ENC_MODEL_LIST),--model-list "$(NETGEAR_ENC_MODEL_LIST)") \
		--version V1.0.0.0.$(shell cat $(VERSION_DIST)| sed -e 's/[[:space:]]/-/g').$(firstword $(subst -, ,$(REVISION))) \
		--encryption-block-size 0x20000 \
		--openssl-bin "$(STAGING_DIR_HOST)/bin/openssl" \
		--key 6865392d342b4d212964363d6d7e7765312c7132613364316e26322a5a5e2538 \
		--iv 4a253169516c38243d6c6d2d3b384145
endef

define Build/openmesh-image
	$(TOPDIR)/scripts/om-fwupgradecfg-gen.sh \
		"$(call param_get_default,ce_type,$(1),$(DEVICE_NAME))" \
		"$@-fwupgrade.cfg" \
		"$(call param_get_default,kernel,$(1),$(IMAGE_KERNEL))" \
		"$(call param_get_default,rootfs,$(1),$@)"
	$(TOPDIR)/scripts/combined-ext-image.sh \
		"$(call param_get_default,ce_type,$(1),$(DEVICE_NAME))" "$@" \
		"$@-fwupgrade.cfg" "fwupgrade.cfg" \
		"$(call param_get_default,kernel,$(1),$(IMAGE_KERNEL))" "kernel" \
		"$(call param_get_default,rootfs,$(1),$@)" "rootfs"
endef

define Build/pad-extra
	dd if=/dev/zero bs=$(1) count=1 >> $@
endef

define Build/pad-offset
	let \
		size="$$(stat -c%s $@)" \
		pad="$(subst k,* 1024,$(word 1, $(1)))" \
		offset="$(subst k,* 1024,$(word 2, $(1)))" \
		pad="(pad - ((size + offset) % pad)) % pad" \
		newsize='size + pad'; \
		dd if=$@ of=$@.new bs=$$newsize count=1 conv=sync
	mv $@.new $@
endef

define Build/pad-rootfs
	$(STAGING_DIR_HOST)/bin/padjffs2 $@ $(1) \
		$(if $(BLOCKSIZE),$(BLOCKSIZE:%k=%),4 8 16 64 128 256)
endef

define Build/pad-to
	$(call Image/pad-to,$@,$(1))
endef

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

# Convert a raw image into a $1 type image.
# E.g. | qemu-image vdi <optional extra arguments to qemu-img binary>
define Build/qemu-image
	if command -v qemu-img; then \
		qemu-img convert -f raw -O $1 $@ $@.new; \
		mv $@.new $@; \
	else \
		echo "WARNING: Install qemu-img to create VDI/VMDK images" >&2; exit 1; \
	fi
endef

define Build/qsdk-ipq-factory-nand
	$(TOPDIR)/scripts/mkits-qsdk-ipq-image.sh \
		$@.its ubi $@
	PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $@.its $@.new
	@mv $@.new $@
endef

define Build/qsdk-ipq-factory-nor
	$(TOPDIR)/scripts/mkits-qsdk-ipq-image.sh \
		$@.its hlos $(IMAGE_KERNEL) rootfs $(IMAGE_ROOTFS)
	PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $@.its $@.new
	@mv $@.new $@
endef

define Build/seama
	$(STAGING_DIR_HOST)/bin/seama -i $@ \
		-m "dev=/dev/mtdblock/$(SEAMA_MTDBLOCK)" -m "type=firmware"
	mv $@.seama $@
endef

define Build/seama-seal
	$(STAGING_DIR_HOST)/bin/seama -i $@ -s $@.seama \
		-m "signature=$(SEAMA_SIGNATURE)"
	mv $@.seama $@
endef

define Build/senao-header
	$(STAGING_DIR_HOST)/bin/mksenaofw $(1) -e $@ -o $@.new
	mv $@.new $@
endef

define Build/sysupgrade-tar
	sh $(TOPDIR)/scripts/sysupgrade-tar.sh \
		--board $(if $(BOARD_NAME),$(BOARD_NAME),$(DEVICE_NAME)) \
		--kernel $(call param_get_default,kernel,$(1),$(IMAGE_KERNEL)) \
		--rootfs $(call param_get_default,rootfs,$(1),$(IMAGE_ROOTFS)) \
		$@
endef

define Build/tplink-safeloader
	-$(STAGING_DIR_HOST)/bin/tplink-safeloader \
		-B $(TPLINK_BOARD_ID) \
		-V $(REVISION) \
		-k $(IMAGE_KERNEL) \
		-r $@ \
		-o $@.new \
		-j \
		$(wordlist 2,$(words $(1)),$(1)) \
		$(if $(findstring sysupgrade,$(word 1,$(1))),-S) && mv $@.new $@ || rm -f $@
endef

define Build/tplink-v1-header
	$(STAGING_DIR_HOST)/bin/mktplinkfw \
		-c -H $(TPLINK_HWID) -W $(TPLINK_HWREV) -L $(KERNEL_LOADADDR) \
		-E $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
		-m $(TPLINK_HEADER_VERSION) -N "$(VERSION_DIST)" -V $(REVISION) \
		-k $@ -o $@.new $(1)
	@mv $@.new $@
endef

# combine kernel and rootfs into one image
# mktplinkfw <type> <optional extra arguments to mktplinkfw binary>
# <type> is "sysupgrade" or "factory"
#
# -a align the rootfs start on an <align> bytes boundary
# -j add jffs2 end-of-filesystem markers
# -s strip padding from end of the image
# -X reserve <size> bytes in the firmware image (hexval prefixed with 0x)
define Build/tplink-v1-image
	-$(STAGING_DIR_HOST)/bin/mktplinkfw \
		-H $(TPLINK_HWID) -W $(TPLINK_HWREV) -F $(TPLINK_FLASHLAYOUT) \
		-N "$(VERSION_DIST)" -V $(REVISION) -m $(TPLINK_HEADER_VERSION) \
		-k $(IMAGE_KERNEL) -r $(IMAGE_ROOTFS) -o $@.new -j -X 0x40000 \
		-a $(call rootfs_align,$(FILESYSTEM)) \
		$(wordlist 2,$(words $(1)),$(1)) \
		$(if $(findstring sysupgrade,$(word 1,$(1))),-s) && mv $@.new $@ || rm -f $@
endef

define Build/tplink-v2-header
	$(STAGING_DIR_HOST)/bin/mktplinkfw2 \
		-c -H $(TPLINK_HWID) -W $(TPLINK_HWREV) -L $(KERNEL_LOADADDR) \
		-E $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR))  \
		-w $(TPLINK_HWREVADD) -F "$(TPLINK_FLASHLAYOUT)" \
		-T $(TPLINK_HVERSION) -V "ver. 2.0" \
		-k $@ -o $@.new $(1)
	@mv $@.new $@
endef

define Build/tplink-v2-image
	$(STAGING_DIR_HOST)/bin/mktplinkfw2 \
		-H $(TPLINK_HWID) -W $(TPLINK_HWREV) \
		-w $(TPLINK_HWREVADD) -F "$(TPLINK_FLASHLAYOUT)" \
		-T $(TPLINK_HVERSION) -V "ver. 2.0" -a 0x4 -j \
		-k $(IMAGE_KERNEL) -r $(IMAGE_ROOTFS) -o $@.new $(1)
	cat $@.new >> $@
	rm -rf $@.new
endef

define Build/uImage
	$(if $(UIMAGE_TIME),SOURCE_DATE_EPOCH="$(UIMAGE_TIME)") \
	mkimage \
		-A $(LINUX_KARCH) \
		-O linux \
		-T kernel \
		-C $(word 1,$(1)) \
		-a $(KERNEL_LOADADDR) \
		-e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
		-n '$(if $(UIMAGE_NAME),$(UIMAGE_NAME),$(call toupper,$(LINUX_KARCH)) $(VERSION_DIST) Linux-$(LINUX_VERSION))' \
		$(if $(UIMAGE_MAGIC),-M $(UIMAGE_MAGIC)) \
		$(wordlist 2,$(words $(1)),$(1)) \
		-d $@ $@.new
	mv $@.new $@
endef

define Build/xor-image
	$(STAGING_DIR_HOST)/bin/xorimage -i $@ -o $@.xor $(1)
	mv $@.xor $@
endef

define Build/zip
	rm -rf $@.tmp
	mkdir $@.tmp
	mv $@ $@.tmp/$(word 1,$(1))
	TZ=UTC $(STAGING_DIR_HOST)/bin/zip -j -X \
		$(wordlist 2,$(words $(1)),$(1)) \
		$@ $@.tmp/$(if $(word 1,$(1)),$(word 1,$(1)),$$(basename $@))
	rm -rf $@.tmp
endef

define Build/zyxel-ras-image
	let \
		newsize="$(subst k,* 1024,$(RAS_ROOTFS_SIZE))"; \
		$(STAGING_DIR_HOST)/bin/mkrasimage \
			-b $(RAS_BOARD) \
			-v $(RAS_VERSION) \
			-r $@ \
			-s $$newsize \
			-o $@.new \
			$(if $(findstring separate-kernel,$(word 1,$(1))),-k $(IMAGE_KERNEL)) \
		&& mv $@.new $@
endef