RISC-V Pioneer Box for builder.sourceware.org gcc CI

[Jeff Law]

On 8/6/24 1:50 PM, Florian Weimer wrote:
> * Jeff Law via Gcc:
> 
>> On 8/5/24 4:23 PM, Mark Wielaard wrote:
>>
>>> It was suggested to just ignore the machine has rvv since it isn't
>>> 1.0
>>> compliant. So it is now configured --with-arch=rv64gc --with-abi=lp64d
>>> --with-multilib-list=lp64d but that didn't really change any of the
>>> testresults since the rvv vector tests are still all run.
> 
>> Quite possibly because the damn thing claims it's "V", but in fact
>> it's not compatible with the V1.0 spec.  Sadly it's a common problem
>> for these V0.7.1 systems.
> 
> I've seen kernel patches floating around that mask the __riscv_hwprobe
> flags for those machines.  Haven't they been merged?
Dunno.  I know there's patches out there, but no clue if they're been 
merged and if there's all the bits needed to build a new kernel that'll 
work on that system.

Ours has been so flaky that we don't use it much.

jeff