Adding SWupdate layer on imx6ull

Technical Support
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1

Hi everyone. I’m trying to add the SWupdate layer (https://github.com/sbabic/meta-swupdate) to an existent image based on Toradex 2.7 - Angstrom v2017.12, so as shown in this page based on the rocko branch of Yocto.
I’ve seen that there are other people here who seems to have succeeded, but I can’t get past this error:

DEBUG: Executing shell function do_compile
NOTE: make -j 12 HOSTCC=gcc  HOSTCXX=g++  V=1 ARCH=arm CROSS_COMPILE=arm-angstrom-linux-gnueabi- SKIP_STRIP=y
make -f scripts/Makefile.build obj=core
make -f scripts/Makefile.build obj=handlers
make -f scripts/Makefile.build obj=archival
make -f scripts/Makefile.build obj=corelib
make -f scripts/Makefile.build obj=ipc
make -f scripts/Makefile.build obj=mongoose
make -f scripts/Makefile.build obj=parser
make -f scripts/Makefile.build obj=suricatta
make -f scripts/Makefile.build obj=bootloader
make -f scripts/Makefile.build obj=tools
  /export/home/oedev/boxio/toradex/dev/iervasi/colibri-imx6ull/build-boxio-colibri-imx6ull/tmp-glibc/work/cortexa7t2hf-neon-angstrom-linux-gnueabi/swupdate/2017.07-r0/git/scripts/trylink "swupdate_unstripped" "arm-angstrom-linux-gnueabi-gcc  -march=armv7ve -mthumb -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a7 --sysroot=/export/home/oedev/boxio/toradex/dev/iervasi/colibri-imx6ull/build-boxio-colibri-imx6ull/tmp-glibc/work/cortexa7t2hf-neon-angstrom-linux-gnueabi/swupdate/2017.07-r0/recipe-sysroot" " -Wall -Wshadow -Wwrite-strings -Wundef -Wstrict-prototypes -Wunused -Wunused-parameter -Wunused-function -Wunused-value -Wmissing-prototypes -Wmissing-declarations -Wno-format-security -Wold-style-definition  -finline-limit=0 -fno-builtin-strlen -fomit-frame-pointer -ffunction-sections -fdata-sections -fno-guess-branch-probability -funsigned-char -falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1 -static-libgcc -fno-unwind-tables -fno-asynchronous-unwind-tables -Os   -DNO_SSL_DL -DUSE_LUA -DUSE_IPV6 " "  -Wl,-E" "core/built-in.o handlers/built-in.o" "archival/lib.a corelib/lib.a ipc/lib.a mongoose/lib.a parser/lib.a suricatta/lib.a bootloader/lib.a" "pthread lua m dl config crypto ssl ubi mtd z z ubootenv "
  /export/home/oedev/boxio/toradex/dev/iervasi/colibri-imx6ull/build-boxio-colibri-imx6ull/tmp-glibc/work/cortexa7t2hf-neon-angstrom-linux-gnueabi/swupdate/2017.07-r0/git/scripts/trylink "tools/client" "arm-angstrom-linux-gnueabi-gcc  -march=armv7ve -mthumb -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a7 --sysroot=/export/home/oedev/boxio/toradex/dev/iervasi/colibri-imx6ull/build-boxio-colibri-imx6ull/tmp-glibc/work/cortexa7t2hf-neon-angstrom-linux-gnueabi/swupdate/2017.07-r0/recipe-sysroot" " -Wall -Wshadow -Wwrite-strings -Wundef -Wstrict-prototypes -Wunused -Wunused-parameter -Wunused-function -Wunused-value -Wmissing-prototypes -Wmissing-declarations -Wno-format-security -Wold-style-definition  -finline-limit=0 -fno-builtin-strlen -fomit-frame-pointer -ffunction-sections -fdata-sections -fno-guess-branch-probability -funsigned-char -falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1 -static-libgcc -fno-unwind-tables -fno-asynchronous-unwind-tables -Os   -DNO_SSL_DL -DUSE_LUA -DUSE_IPV6 " "  -Wl,-E" "tools/client.o" "archival/lib.a corelib/lib.a ipc/lib.a mongoose/lib.a parser/lib.a suricatta/lib.a bootloader/lib.a" "pthread lua m dl config crypto ssl ubi mtd z z ubootenv "
  /export/home/oedev/boxio/toradex/dev/iervasi/colibri-imx6ull/build-boxio-colibri-imx6ull/tmp-glibc/work/cortexa7t2hf-neon-angstrom-linux-gnueabi/swupdate/2017.07-r0/git/scripts/trylink "tools/sendtohawkbit" "arm-angstrom-linux-gnueabi-gcc  -march=armv7ve -mthumb -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a7 --sysroot=/export/home/oedev/boxio/toradex/dev/iervasi/colibri-imx6ull/build-boxio-colibri-imx6ull/tmp-glibc/work/cortexa7t2hf-neon-angstrom-linux-gnueabi/swupdate/2017.07-r0/recipe-sysroot" " -Wall -Wshadow -Wwrite-strings -Wundef -Wstrict-prototypes -Wunused -Wunused-parameter -Wunused-function -Wunused-value -Wmissing-prototypes -Wmissing-declarations -Wno-format-security -Wold-style-definition  -finline-limit=0 -fno-builtin-strlen -fomit-frame-pointer -ffunction-sections -fdata-sections -fno-guess-branch-probability -funsigned-char -falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1 -static-libgcc -fno-unwind-tables -fno-asynchronous-unwind-tables -Os   -DNO_SSL_DL -DUSE_LUA -DUSE_IPV6 " "  -Wl,-E" "tools/sendtohawkbit.o" "archival/lib.a corelib/lib.a ipc/lib.a mongoose/lib.a parser/lib.a suricatta/lib.a bootloader/lib.a" "pthread lua m dl config crypto ssl ubi mtd z z ubootenv "
  /export/home/oedev/boxio/toradex/dev/iervasi/colibri-imx6ull/build-boxio-colibri-imx6ull/tmp-glibc/work/cortexa7t2hf-neon-angstrom-linux-gnueabi/swupdate/2017.07-r0/git/scripts/trylink "tools/hawkbitcfg" "arm-angstrom-linux-gnueabi-gcc  -march=armv7ve -mthumb -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a7 --sysroot=/export/home/oedev/boxio/toradex/dev/iervasi/colibri-imx6ull/build-boxio-colibri-imx6ull/tmp-glibc/work/cortexa7t2hf-neon-angstrom-linux-gnueabi/swupdate/2017.07-r0/recipe-sysroot" " -Wall -Wshadow -Wwrite-strings -Wundef -Wstrict-prototypes -Wunused -Wunused-parameter -Wunused-function -Wunused-value -Wmissing-prototypes -Wmissing-declarations -Wno-format-security -Wold-style-definition  -finline-limit=0 -fno-builtin-strlen -fomit-frame-pointer -ffunction-sections -fdata-sections -fno-guess-branch-probability -funsigned-char -falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1 -static-libgcc -fno-unwind-tables -fno-asynchronous-unwind-tables -Os   -DNO_SSL_DL -DUSE_LUA -DUSE_IPV6 " "  -Wl,-E" "tools/hawkbitcfg.o" "archival/lib.a corelib/lib.a ipc/lib.a mongoose/lib.a parser/lib.a suricatta/lib.a bootloader/lib.a" "pthread lua m dl config crypto ssl ubi mtd z z ubootenv "
  /export/home/oedev/boxio/toradex/dev/iervasi/colibri-imx6ull/build-boxio-colibri-imx6ull/tmp-glibc/work/cortexa7t2hf-neon-angstrom-linux-gnueabi/swupdate/2017.07-r0/git/scripts/trylink "tools/progress" "arm-angstrom-linux-gnueabi-gcc  -march=armv7ve -mthumb -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a7 --sysroot=/export/home/oedev/boxio/toradex/dev/iervasi/colibri-imx6ull/build-boxio-colibri-imx6ull/tmp-glibc/work/cortexa7t2hf-neon-angstrom-linux-gnueabi/swupdate/2017.07-r0/recipe-sysroot" " -Wall -Wshadow -Wwrite-strings -Wundef -Wstrict-prototypes -Wunused -Wunused-parameter -Wunused-function -Wunused-value -Wmissing-prototypes -Wmissing-declarations -Wno-format-security -Wold-style-definition  -finline-limit=0 -fno-builtin-strlen -fomit-frame-pointer -ffunction-sections -fdata-sections -fno-guess-branch-probability -funsigned-char -falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1 -static-libgcc -fno-unwind-tables -fno-asynchronous-unwind-tables -Os   -DNO_SSL_DL -DUSE_LUA -DUSE_IPV6 " "  -Wl,-E" "tools/progress.o" "archival/lib.a corelib/lib.a ipc/lib.a mongoose/lib.a parser/lib.a suricatta/lib.a bootloader/lib.a" "pthread lua m dl config crypto ssl ubi mtd z z ubootenv "
Failed: -Wl,--start-group -lpthread -llua -lm -ldl -lconfig -lcrypto -lssl -lubi -lmtd -lz -lubootenv -Wl,--end-group
Output of:
arm-angstrom-linux-gnueabi-gcc -march=armv7ve -mthumb -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a7 --sysroot=/export/home/oedev/boxio/toradex/dev/iervasi/colibri-imx6ull/build-boxio-colibri-imx6ull/tmp-glibc/work/cortexa7t2hf-neon-angstrom-linux-gnueabi/swupdate/2017.07-r0/recipe-sysroot -Wall -Wshadow -Wwrite-strings -Wundef -Wstrict-prototypes -Wunused -Wunused-parameter -Wunused-function -Wunused-value -Wmissing-prototypes -Wmissing-declarations -Wno-format-security -Wold-style-definition -finline-limit=0 -fno-builtin-strlen -fomit-frame-pointer -ffunction-sections -fdata-sections -fno-guess-branch-probability -funsigned-char -falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1 -static-libgcc -fno-unwind-tables -fno-asynchronous-unwind-tables -Os -DNO_SSL_DL -DUSE_LUA -DUSE_IPV6 -Wl,-E -o swupdate_unstripped -Wl,--sort-common -Wl,--gc-sections -Wl,--start-group core/built-in.o handlers/built-in.o archival/lib.a corelib/lib.a ipc/lib.a mongoose/lib.a parser/lib.a suricatta/lib.a bootloader/lib.a -Wl,--end-group -Wl,--start-group -lpthread -llua -lm -ldl -lconfig -lcrypto -lssl -lubi -lmtd -lz -lubootenv -Wl,--end-group
==========
bootloader/lib.a(uboot.o):uboot.c:function bootloader_env_set: error: undefined reference to 'fw_env_flush'
collect2: error: ld returned 1 exit status
Makefile:375: recipe for target 'swupdate_unstripped' failed
make: *** [swupdate_unstripped] Error 1
make: *** Waiting for unfinished jobs....
  arm-angstrom-linux-gnueabi-strip -s --remove-section=.note --remove-section=.comment tools/progress_unstripped -o tools/progress; chmod a+x tools/progress
  arm-angstrom-linux-gnueabi-strip -s --remove-section=.note --remove-section=.comment tools/sendtohawkbit_unstripped -o tools/sendtohawkbit; chmod a+x tools/sendtohawkbit
  arm-angstrom-linux-gnueabi-strip -s --remove-section=.note --remove-section=.comment tools/client_unstripped -o tools/client; chmod a+x tools/client
  arm-angstrom-linux-gnueabi-strip -s --remove-section=.note --remove-section=.comment tools/hawkbitcfg_unstripped -o tools/hawkbitcfg; chmod a+x tools/hawkbitcfg
ERROR: oe_runmake failed
WARNING: /export/home/oedev/boxio/toradex/dev/iervasi/colibri-imx6ull/build-boxio-colibri-imx6ull/tmp-glibc/work/cortexa7t2hf-neon-angstrom-linux-gnueabi/swupdate/2017.07-r0/temp/run.do_compile.6951:1 exit 1 from 'exit 1'
ERROR: Function failed: do_compile (log file is located at /export/home/oedev/boxio/toradex/dev/iervasi/colibri-imx6ull/build-boxio-colibri-imx6ull/tmp-glibc/work/cortexa7t2hf-neon-angstrom-linux-gnueabi/swupdate/2017.07-r0/temp/log.do_compile.6951)

Here a similar question was asked, but I’m already using a recent version of U-Boot (or at least I think so) so I can’t explain why such an error.
I’m still not very experienced with the Yocto workflow, so it’s possible that I’m missing something important, but I can’t see it.

Thanks
Matteo Iervasi

2

Hi @jackhack96

Thanks for writing to the Toradex Support.

bootloader/lib.a(uboot.o):uboot.c:function bootloader_env_set: error: undefined reference to ‘fw_env_flush’
collect2: error: ld returned 1 exit status
Makefile:375: recipe for target ‘swupdate_unstripped’ failed

The definition of fw_env_flush is missing. Could you check if this function is defined somewhere?

Best regards,
Jaski

3

Hi @jaski.tx

I’ve found the definition of fw_env_flush in build-boxio-colibri-imx6ull/tmp-glibc/work/colibri_imx6ull-angstrom-linux-gnueabi/u-boot-fw-utils/1_2017.09-r0/git/tools/env/fw_env.c at row 309:

int fw_env_flush(struct env_opts *opts)
{
	int ret;

	if (!opts)
		opts = &default_opts;

	if (opts->aes_flag) {
		ret = env_aes_cbc_crypt(environment.data, 1,
					opts->aes_key);
		if (ret) {
			fprintf(stderr,
				"Error: can't encrypt env for flash\n");
			return ret;
		}
	}

	/*
	 * Update CRC
	 */
	*environment.crc = crc32(0, (uint8_t *) environment.data, ENV_SIZE);

	/* write environment back to flash */
	if (flash_io(O_RDWR)) {
		fprintf(stderr,
			"Error: can't write fw_env to flash\n");
			return -1;
	}

	return 0;
}

That’s what puzzles me, I don’t know if it’s taking the right recipe…

Best regards

Matteo

4

hi @jackhack96

Thanks for your input.
Bsp 2.7 is not supported any more. Could you update to Bsp 2.8.7 and also use the rocko branch from SWupdate layer?

Best regards,
Jaski

5

I’m already using the rocko branch for SWupdate and BSP 2.8. I didn’t updated to the June maintenance release, but the 2.8 base is there.

Thanks for the patience

Best regards,

Matteo

6

Hi @jackhack96,

Are you still facing this issue or managed to solve it already?

Best regards,
André Curvello

7

Yes I’m still facing it but honestly I didn’t touch anything since September.
Now I’ve returned to this issue but I’m considering Mender as it seems more easy to set up (though I don’t know if we can stay on BSP 2.8)

8

I agree with @jaski.tx that the root cause of the issue is:

bootloader/lib.a(uboot.o):uboot.c:function bootloader_env_set: error: undefined reference to 'fw_env_flush'

Are you sure you added the layers resources to the bblayers.conf definition in your Yocto build?

I saw a similar issue as yours here in this Google Forum for SWUpdate, and the response was “(…) the problem regarding u-boot is due to an old version of u-boot in the layer of the board provider”

Here is also a similar issue with a possible solution as well.

Best regards,
André Curvello

9

Well, I added meta-swupdate in that file.
The problem is that the U-Boot version that comes with BSP 2.8 is 2016.11, which is too old (in fact there’s no fe_env_flush definition).
Is it possible to update Toradex U-Boot without updating the whole BSP?

Thanks for the support :slight_smile:

10

Hi @jackhack96,

As it’s about U-Boot, there is a chance that this is possible, in theory.

You’d have to do the arrangements in Yocto so the U-Boot layer makes the reference for the same branch of our BSP 3.0.4.

You can see the branches/tables in our “Build U-Boot and Linux Kernel from Source Code” page.

But do you prefer to keep the BSP 2.8?

If it’s possible, I’d recommend you to move to the BSP 3.0.4.

Best regards,
André Curvello

11

Ok I’ve finally managed to integrate SWupdate without changing the BSP (@andrecurvello.tx I was asked to not touch the BSP layer, anyway I was told that an update is scheduled in the future, but before that our proprietary layers have to be updated accordingly and more importantly extensive testing has to be done in order to ensure stability).

All I’ve done is to take U-Boot 2019 recipes from the thud branch of meta-toradex-nxp and meta-toradex-bsp-common, and create a bbappend for libubootenv of SWupdate (just take the one in its recipes-bsp folder and rename to u-boot-toradex-fw-utils).

Thanks for all the support!

12

Hi @jackhack96,

Thanks for the update! Good news.
And thanks for sharing the steps you’ve made.

Best regards,
André Curvello