Re: [PATCH bpf-next] bpf: fix bpf_ksym_exists in GCC

[Yonghong Song <yonghong.song@xxxxxxxxx>]

On 5/2/24 11:23 AM, Jose E. Marchesi wrote:
> >          .long   runqueues
> >          .long   3264
> >          .long   388
> Just to be sure, there seems to be a little discrepancy.  The size of
> runqueues (struct rq) in the latest bpf-next is 3456 instead of 3264,
> when compiled by both clang 18 and GCC.  This is correctly reflected in
> the BTF generated by both compilers.
>
> Is the size of struct rq different in your testing machine?

Probably due to different configrations. Anyway, libbpf/kernel will do proper
rewrite to reference to the proper kernel runqueus.