Shouldn't a jump to gcc 7.2 or 8 with the Retopoline patches included,
be the target given meltdown/spectre mitigations? This is going to
affect newer Arm (mvebu potentially) and atom/x86 builds - although
these use grub generally so not so much specific to uboot not
compiling.

-Joel



On 14 February 2018 at 04:04,  <p.wa...@gmx.at> wrote:
> Hey guys,
>
> as of U-Boot v2018.01, the bootloader requires at least a GCC 6 based 
> toolchain
> for ARM targets [1]. Building will fail with GCCs prior to 6. (I.e. current 
> default 5.5.0)
>
> For the Kirkwood target, I've prepared a patch to bring it to v2018.01, but 
> that would result
> in a failed build as stated above. (Of course, when manually selecting GCC6 
> as compiler
> everything is fine)
>
> How can this situation be resolved?
> -) Stick to U-Boot 2017.11 until GCC 6.x is the default here?
> -) Is a switch to GCC6 planned in the near future?
> -) Undo the changes in [1] via a local patch and check, whether GCC5 is still 
> fine for Kirkwood?
>
> While the bootloader may not be that important in day to day business, 
> eventually a 'regular'
> package might have a requirement for a newer compiler too...
>
> Best,
> P. Wassi
>
> [1]:
> http://git.denx.de/?p=u-boot.git;a=commit;h=6b867dabe84bae1e74e88f4af620c26cb793c4c2
>
>
>
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