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Re: [PATCH 5/6] Refactor hp-timing rtld usage

* Wilco Dijkstra:

> Hi Florian,
>
>>> You need something to compile without timer support without unused
>>> variable errors.
>>
>> I assumed we would get generic timer support?
>
> The generic timer code calls __clock_gettime which requires VDSO
> to be setup, so I don't believe it is safe to call it from rtld.

It would be safe to call if we provide a definition of __clock_gettime
which uses the system call, which gets then interposed by the libc
definition (potentially using the vDSO) after full relocation.  So it
would just turn into a matter of performance then.  (I assume the time
scales of the vDSO and non-vDSO version of the system call are
compatible.)

Thanks,
Florian
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