[PATCH v2 libevdev 13/13] Add ld version-script

[David Herrmann]

Hi

On Thu, Aug 29, 2013 at 6:16 AM, Peter Hutterer
<peter.hutterer at who-t.net> wrote:
> On Mon, Aug 26, 2013 at 09:27:33AM +1000, Peter Hutterer wrote:
>> From: David Herrmann <dh.herrmann at gmail.com>
>>
>> Explicit symbol versioning allows us to provide multiple versions of
>> incompatible API changes. It is a very common practice in GNU world and
>> avoids the problems occuring if distributions try to ship multiple version
>> of a single DSO.
>>
>> We currently don't have any incompatibilities, but we need to start
>> versioning right from the beginning to allow for smooth transitions later.
>>
>> Background information available at:
>>   http://people.redhat.com/drepper/dsohowto.pdf
>>
>> To see the symbol-versions, use objdump:
>>   objdump -T libevdev/.libs/libevdev.so.1.0.0
>> This can also be used to verify that all 67 symbols are correctly
>> exported (typos in linker-scripts are silently ignored by ld).
>>
>> Note that we cannot mix linker-scripts with -export-* commands so we
>> explicitly have to mark all symbols as visibility=public via EXPORT.
>>
>> Signed-off-by: David Herrmann <dh.herrmann at gmail.com>
>> Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
>> Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
>
> I ended up pushing this only partially. The LIBEVDEV_EXPORT bits are in, but
> the linker versioning part of it isn't. I'll hold off that, mainly because
> the API is a bit in flux (I've got more changes coming).
>
> I'll merge the rest once we're ready to commit to an API, from then on we
> can do proper versioning.

Yepp, looks all good.

Thanks
David