[PATCH v3] getrandom system call wrapper [BZ #17252]

Florian Weimer fweimer@redhat.com
Thu Sep 8 13:02:00 GMT 2016


On 09/08/2016 03:01 PM, Andreas Schwab wrote:
> On Sep 08 2016, Florian Weimer <fweimer@redhat.com> wrote:
>
>> I have retained the __getrandom symbol mangling.  The justification for
>> that is that getrandom is a fairly common name.  Application code might
>> use it for something else entirely and interpose their definition, so that
>> libraries cannot rely on it doing the right thing.  I think the mangling
>> is justified because it is hard to spot that getrandom is broken due to
>> interposition.  As <sys/random.h> is a new header, the macro will be
>> exposed to few applications.
>
> It makes it impossible to take the address of the function, though.

It does.  Do you have a better suggestion to achieve the same effect?

Thanks,
Florian



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