[OE-core] Aarch64 u-boot with gcc .5x

[Stephen Arnold]

I hit the same thing and ended up using their prebuilt bootloader to
get it up for testing.  There is a big C++ ABI change with gcc 5.x
(I've been using 5.3.0 for a while now) and the gold linker is much
less tolerant of underlinking than bfd is.  That said, their u-boot is
funky but not actually that old, and they also have a blob 1st-stage
that is only provided as a binary.

Their wiki:

http://odroid.com/dokuwiki/doku.php?id=en:c2_building_u-boot

says to checkout branch odroidc2-v2015.01 but I didn't dig into the
commit history to see when they last pulled from upstream.  The error
I get with 5.3.0 looks like their u-boot/include/linux stuff is just
way too old for gcc5 (since they're still using a 3.10 kernel fork
probably).  Their build also blows up with gcc-4.8 - can you say
brittle-hard-dep on gcc 4.9?

Steve

On Mon, Mar 28, 2016 at 11:20 AM, Otavio Salvador
<otavio.salvador at ossystems.com.br> wrote:
> Hello Armin,
>
> On Mon, Mar 28, 2016 at 12:51 PM, akuster808 <akuster808 at gmail.com> wrote:
>> I have an arm64 odroid c2 board.  If I build u-boot with the current OE
>> 5.3 gcc it hangs at kernel load time. If I use 4.9 gcc it works fine. A
>> 5.3 built kernel boots fine with a 4.9 built u-boot.
>>
>> The vendor supplied u-boot is hacked up and am leaning it that direction
>> as the culprit so I am looking for data points.
>>
>> Is anyone using a current u-boot with 5.3 gcc on an arm64 machine? if
>> so, any special tweaks to get that combo to work?
>
> I am using one ARM 64 SoC with GCC 5.2 at this moment and it works
> fine. What U-Boot version is the fork based on?
>
> --
> Otavio Salvador                             O.S. Systems
> http://www.ossystems.com.br        http://code.ossystems.com.br
> Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750
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