[U-Boot] UBIFS status in the mainline

[Max Filippov]

On Tue, Jul 5, 2016 at 11:55 PM, Stefan Agner <stefan at agner.ch> wrote:
> On 2016-07-03 20:21, Max Filippov wrote:
>> On Sun, Jul 3, 2016 at 9:53 PM, Stefan Agner <stefan at agner.ch> wrote:
>>> On 2016-07-02 19:27, Max Filippov wrote:
>>>> I'm getting the following build errors when I'm trying to build U-Boot
>>>> for a board with UBIFS in its config from the current U-Boot mainline:
>>>>
>>>> fs/built-in.o: In function `do_fs_type':
>>>> (.text+0x6a0): undefined reference to `dbg_chk_lpt_free_spc'
>>>> fs/built-in.o: In function `do_fs_type':
>>>> (.text+0x6a4): undefined reference to `dbg_check_ltab'
>>>> fs/built-in.o: In function `do_fs_type':
>>>> (.text+0x6a8): undefined reference to `dbg_chk_lpt_sz'
>>>> fs/built-in.o: In function `do_fs_type':
>>>> (.text+0x6ac): undefined reference to `ubifs_dump_lpt_lebs'
>>>> fs/built-in.o: In function `do_fs_type':
>>>> (.text+0x71c): undefined reference to `ubifs_commit_required'
>>>> fs/built-in.o: In function `do_fs_type':
>>>> (.text+0x720): undefined reference to `ubifs_request_bg_commit'
>>>> fs/built-in.o: In function `do_fs_type':
>>>> (.text+0x724): undefined reference to `ubifs_write_node'
>>>> fs/built-in.o: In function `do_fs_type':
>>>> (.text+0x728): undefined reference to `ubifs_write_master'
>>>>
>>>> Do I do something wrong or is it broken?
>>>
>>> What board configuration do you use? I just compiled successfully
>>> v2016.07-rc3 for a i.MX 7 board with UBI...
>>
>> Ok, thanks.
>> I used an xtfpga board that's not in the mainline, for the xtensa
>> architecture that's not in the mainline as well.
>> I've tried to build nokia_rx51 board (ARM) with enabled UBIFS and
>> indeed it got linked without errors. But then I've noticed that the
>> resulting u-boot image is dynamic executable and it has unresolved
>> external links to the same functions as listed above.
>> The difference between linking steps for ARM and xtensa is that
>> ARM image gets linked with -pie while xtensa u-boot is not and the
>> resulting u-boot image for xtensa is static.
>> I'm curious about how that's supposed to work.
>
> I can't reproduce linker errors using v2016.07-rc3. I added a
> UBIFS_SUPPORT define to nokia_rx51.h and compiled using:

It actually needs two macro definitions to enable UBIFS:
+#define ONENAND_SUPPORT
+#define UBIFS_SUPPORT

And as I said link step does not break on ARM indeed, but the
resulting image looks strange to me:

arm-unknown-eabi-objdump -x build-nokia-rx51/u-boot | grep UND
00000000 l       *UND*  00000000 dbg_chk_lpt_sz
00000000 l       *UND*  00000000 dbg_check_ltab
00000000 l       *UND*  00000000 dbg_chk_lpt_free_spc
00000000 l       *UND*  00000000 ubifs_dump_lpt_lebs
00000000 l       *UND*  00000000 ubifs_write_master
00000000 l       *UND*  00000000 ubifs_commit_required
00000000 l       *UND*  00000000 ubifs_write_node
00000000 l       *UND*  00000000 ubifs_request_bg_commit
00000000 l       *UND*  00000000 eth_setenv_enetaddr
00000000 l       *UND*  00000000 timer_read_counter

> It worked for me. What toolchain do you use? I used a Linaro 2015.11-2
> (gcc 5.2).

I used crosstool-NG to build preconfigured arm-unknown-eabi toolchain.

-- 
Thanks.
-- Max