extra syscall_cancel frames

[Florian Weimer]

* Adhemerval Zanella Netto:

> On 20/03/25 19:10, Florian Weimer wrote:
>> * Mark Wielaard:
>> 
>>>> I think __internal_syscall_cancel should get inlined into
>>>> __syscall_cancel.
>>>
>>> It isn't, I double checked with gdb and there are always two extra
>>> frames on top of the call stack.
>> 
>> Oh, right, it's not static.
>
> And we need __always_inline to proper inline it. I will send a patch
> to change it.

I think there are expected to be external callers from the rest of
glibc, so we can't inline it.

Thanks,
Florian