Re: [PATCH v4 0/4] LoongArch: Support new relocation types

[Youling Tang]

On 07/29/2022 07:45 PM, Xi Ruoyao wrote:
> On Fri, 2022-07-29 at 18:36 +0800, Xi Ruoyao wrote:
>
> > The relocation against local percpu variable is broken up.  I'll try
> > to fix it.
>
> Hmm... The problem is the "addresses" of per-cpu symbols are faked: they
> are actually offsets from $r21.  So we can't just load such an offset
> with PCALA addressing.
>
> It looks like we'll need to introduce an attribute for GCC to make an
> variable "must be addressed via GOT", and add the attribute into
> PER_CPU_ATTRIBUTES.
Yes, we need a GCC attribute to specify the per-cpu variable.

Thanks,
Youling
>