Re: [PATCH bpf-next 3/3] bpftool: Display cookie for raw_tp link probe

[Tao Chen <chen.dylane@xxxxxxxxx>]

在 2025/5/30 01:11, Alexei Starovoitov 写道:
> On Thu, May 29, 2025 at 10:01 AM Tao Chen <chen.dylane@xxxxxxxxx> wrote:
> > Display cookie for raw_tp link probe, in plain mode:
> >
> >   #bpftool link
> >
> > 22: raw_tracepoint  prog 14
> >          tp 'sys_enter'  cookie 23925373020405760
> >          pids test_progs(176)
>
> Curious number.
> What 0x55000000000000 was used for ?

Yes, no practical in fact, i just ran the selftest case in bpf_cookie.c.
raw_tp_opts.cookie = cookie = 0x55000000000000L;

--
Best Regards
Tao Chen