KumiSystems/openwrtv3
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
openwrtv3/target/linux/apm821xx/image/Makefile
Christian Lamparter 78e63ce7e3 apm821xx: add size check for initramfs kernel for the Meraki MR24 
Russell Senior reported an issue with the MR24 initramfs kernels:
> ## Booting kernel from Legacy Image at 00c10000 ...
>   Image Name:   POWERPC LEDE Linux-4.4.19
>   Created:      2016-08-31  11:57:05 UTC
>   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>   Data Size:    2155723 Bytes = 2.1 MiB
>   Load Address: 00000000
>   Entry Point:  00000000
>   Verifying Checksum ... OK
>Wrong Ramdisk Image Format
>Ramdisk image is corrupt or invalid

For the MR24, the kernel is uploaded to 0x10000. The ramdisk starts
at 0x200000. This leaves the kernel with just 0x1f0000 bytes = 1984kb.
This patch adds a size check so the image creation script will abort
instead of producing a unbootable initramfs image. A separate patch
"apm821xx: Fix initramfs image for the Meraki MR24" which fixed the
reported issue was submitted earlier.

Cc: Russell Senior <russell@personaltelco.net>
Cc: Chris Blake <chrisrblake93@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2016-09-05 07:28:52 +02:00

256 lines
7.2 KiB
Makefile
Raw Blame History

#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/image.mk
include $(INCLUDE_DIR)/host.mk
DEVICE_VARS += DEVICE_PROFILE IMAGE_SIZE DTB_SIZE
define Device/Default
PROFILES := Default
KERNEL_DEPENDS = $$(wildcard ../dts/$$(DEVICE_DTS).dts)
DEVICE_PROFILE :=
DEVICE_DTS :=
KERNEL_ENTRY := 0x00000000
KERNEL_LOADADDR := 0x00000000
DEVICE_DTS_DIR := ../dts
endef
define Build/dtb
$(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb,,--space $(DTB_SIZE))
endef
ifeq ($(SUBTARGET),nand)
define Image/cpiogz
( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9n >$(KDIR_TMP)/$(IMG_PREFIX)-rootfs.cpio.gz )
endef
define Build/copy-file
cat "$(1)" > "$@"
endef
define Build/MerakiAdd-dtb
$(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb)
( \
dd if=$@.dtb bs=$(DTB_SIZE) conv=sync; \
dd if=$@ bs=$(BLOCKSIZE) conv=sync; \
) > $@.new
@mv $@.new $@
endef
define Build/MerakiAdd-initramfs
$(call Image/cpiogz)
-$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) -O linux -T ramdisk \
-C gzip -n "$(PROFILE) rootfs" \
-d $(KDIR_TMP)/$(IMG_PREFIX)-rootfs.cpio.gz \
$(KDIR_TMP)/$(IMG_PREFIX)-uramdisk.image.gz
( \
dd if=$@ bs=1k conv=sync; \
dd if=$(KDIR_TMP)/$(IMG_PREFIX)-uramdisk.image.gz bs=$(BLOCKSIZE) conv=sync; \
) > $@.new
@mv $@.new $@
endef
define Build/MerakiNAND
-$(STAGING_DIR_HOST)/bin/mkmerakifw \
-B $(DEVICE_PROFILE) -s \
-i $@ \
-o $@.new
@cp $@.new $@
endef
define Device/mr24
DEVICE_TITLE := Cisco Meraki MR24
DEVICE_PACKAGES := kmod-spi-gpio kmod-ath9k wpad-mini
DEVICE_PROFILE := MR24
DEVICE_DTS := MR24
BLOCKSIZE := 64512
IMAGES := sysupgrade.tar
DTB_SIZE := 64512
KERNEL_SIZE := 1984k
IMAGE_SIZE := 8191k
KERNEL := kernel-bin | lzma | uImage lzma | MerakiAdd-dtb | MerakiNAND
KERNEL_INITRAMFS := copy-file $(KDIR)/vmlinux | lzma | uImage lzma | \
check-size $$(KERNEL_SIZE) | \
MerakiAdd-dtb | pad-to 2047k | MerakiAdd-initramfs | \
MerakiNAND
IMAGE/sysupgrade.tar := sysupgrade-tar
endef
TARGET_DEVICES += mr24
define Build/create-uImage-dtb
# flat_dt target expect FIT image - which WNDR4700's uboot doesn't support
-$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) \
-O linux -T kernel -C none \
-n '$(call toupper,$(LINUX_KARCH)) LEDE Linux-$(LINUX_VERSION)' \
-d $(IMAGE_KERNEL).dtb $@.new
@mv $@.new $@
endef
define Build/append-fakerootfs
rm -rf $@.fakerootsquashfs $@.fakefs
# append a fake/empty rootfs to fool netgear's uboot
# CHECK_DNI_FIRMWARE_ROOTFS_INTEGRITY in do_chk_dniimg()
dd if=/dev/zero of=$@.fakerd bs=16 count=1 conv=sync
-$(STAGING_DIR_HOST)/bin/mkimage \
-A $(LINUX_KARCH) -O linux -T filesystem -C none \
-a 0x00000000 -e 0x00000000 \
-n '$(DEVICE_PROFILE) fakerootfs' \
-d $@.fakerd $@.fakefs
cat $@.fakefs >> $@
rm -rf $@.fakerootsquashfs $@.fakefs
endef
define Build/wndr4700-specialImage
rm -rf $@.fakerd $@.new
dd if=/dev/zero of=$@.fakerd bs=32 count=1 conv=sync
# Netgear used an old uboot that doesn't have FIT support.
# So we are stuck with either a full ext2/4 fs in a initrd.
# ... or we try to make the "multi" image approach to work
# for us.
#
# Sadly, the "multi" image has to consists of three
# "fixed" parts in the following "fixed" order:
# 1. The kernel which is in $@
# 2. The (fake) initrd which is in $@.fakerd
# 3. The device tree binary which is in $@.dtb
#
# Now, given that we use the function for the kernel which
# already has a initramfs image inside, we still have to
# add a "fake" initrd (which a mkimage header) in the second
# part of the legacy multi image. Since we need to put the
# device tree stuff into part 3.
-$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) -O linux -T multi \
-C $(1) -a $(KERNEL_LOADADDR) -e $(KERNEL_ENTRY) \
-n '$(DEVICE_PROFILE) initramfs' -d $@:$@.fakerd:$@.dtb $@.new
mv $@.new $@
rm -rf $@.fakerd
endef
define Device/WNDR4700
DEVICE_TITLE := Netgear Centria N900 WNDR4700/WNDR4720
DEVICE_PACKAGES := badblocks block-mount e2fsprogs \
kmod-ath9k kmod-dm kmod-fs-ext4 kmod-fs-vfat kmod-ledtrig-usbdev \
kmod-md-mod kmod-nls-cp437 kmod-nls-iso8859-1 kmod-nls-iso8859-15 \
kmod-nls-utf8 kmod-usb3 kmod-usb-dwc2 kmod-usb-storage \
partx-utils swconfig wpad-mini
DEVICE_NAME := wndr4700
DEVICE_PROFILE := wndr4700
DEVICE_DTS := wndr4700
PAGESIZE := 2048
SUBPAGESIZE := 512
BLOCKSIZE := 131072
DTB_SIZE := 131008
IMAGE_SIZE:=25559040
IMAGES := factory.img sysupgrade.tar
KERNEL_SIZE := 1920k
KERNEL := dtb | kernel-bin | lzma | uImage lzma | pad-offset $$(BLOCKSIZE) 64 | append-fakerootfs
KERNEL_INITRAMFS := kernel-bin | gzip | dtb | wndr4700-specialImage gzip
IMAGE/factory.img := create-uImage-dtb | append-kernel | pad-to 2M | append-ubi | \
netgear-dni | check-size $$$$(IMAGE_SIZE)
IMAGE/sysupgrade.tar := sysupgrade-tar
NETGEAR_BOARD_ID := WNDR4700
NETGEAR_HW_ID := 29763875+128+256
endef
TARGET_DEVICES += WNDR4700
endif
ifeq ($(SUBTARGET),sata)
### Image scripts for the WD My Book Live Series ###
define Build/boot-script
$(STAGING_DIR_HOST)/bin/mkimage -A powerpc -T script -C none -n "$(PROFILE) Boot Script" \
-d mbl_boot.scr \
$@.scr
endef
define Build/boot-img
$(RM) -rf $@.bootdir
mkdir -p $@.bootdir/boot
$(CP) $@.scr $@.bootdir/boot/boot.scr
$(CP) $(IMAGE_KERNEL).dtb $@.bootdir/boot/$(DEVICE_DTB)
$(CP) $(IMAGE_KERNEL) $@.bootdir/boot/uImage
genext2fs --block-size $(BLOCKSIZE) --size-in-blocks $$((1024 * $(BOOT_SIZE))) --root $@.bootdir $@.boot
# convert it to revision 1 - needed for u-boot ext2load
$(STAGING_DIR_HOST)/bin/tune2fs -O filetype $@.boot
$(STAGING_DIR_HOST)/bin/e2fsck -pDf $@.boot > /dev/null
endef
define Build/hdd-img
./mbl_gen_hdd_img.sh $@ $@.boot $(IMAGE_ROOTFS)
$(if $(CONFIG_TARGET_IMAGES_GZIP),gzip -9n -c $@ > $(BIN_DIR)/$(notdir $@).gz)
endef
define Build/uRamdisk
$(STAGING_DIR_HOST)/bin/mkimage \
-A powerpc -T ramdisk -C gzip \
-n "$(DEVICE_NAME) rootfs" \
-d $@ $@.new
mv $@.new $@
endef
define Build/recovery-tar
sh ./mbl_gen_recovery_tar.sh \
--profile $(DEVICE_PROFILE) \
--dtb $(IMAGE_KERNEL).dtb \
--dtbname $(DEVICE_DTB) \
--kernel $(IMAGE_KERNEL) \
--rootfs $@ \
$@
endef
define Build/export-dtb
cp $(IMAGE_KERNEL).dtb $@
endef
define Device/MyBookLiveDefault
IMAGE_SIZE := 48m
BLOCKSIZE := 1024
DTB_SIZE := 16384
KERNEL := kernel-bin | dtb | gzip | uImage gzip
BOOT_SIZE := 8
IMAGES := rootfs.img recovery.tar kernel.dtb
DEVICE_DTB := apollo3g.dtb
FILESYSTEMS := ext4
IMAGE/kernel.dtb := export-dtb
IMAGE/rootfs.img := boot-script | boot-img | hdd-img
IMAGE/recovery.tar := append-rootfs | gzip | uRamdisk | recovery-tar
endef
define Device/MyBookLiveSingle
$(Device/MyBookLiveDefault)
DEVICE_TITLE := Western Digital My Book Live
DEVICE_DTS := apollo3g
DEVICE_PROFILE := apollo3g
endef
TARGET_DEVICES += MyBookLiveSingle
define Device/MyBookLiveDuo
$(Device/MyBookLiveDefault)
DEVICE_TITLE := Western Digital My Book Live Duo
DEVICE_PACKAGES := kmod-usb-dwc2 kmod-ledtrig-usbdev kmod-usb-storage kmod-fs-vfat wpad-mini
DEVICE_DTS := apollo3g-duo
DEVICE_PROFILE := ap2nc
endef
TARGET_DEVICES += MyBookLiveDuo
endif
$(eval $(call BuildImage))
Reference in a new issue View git blame Copy permalink