[U-Boot] UBIFS status in the mainline

[Stefan Agner]

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:

make nokia_rx51_defconfig
make -j 4

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

--
Stefan