shared libraries in D

[Christian Kamm]

Iain Buclaw wrote:

> == Quote from Christian Kamm (kamm-incasoftware at removethis.de)'s article
>> Iain Buclaw wrote:
>> > Will be making shared libraries default in GDC pretty soon now...
>> Did you adjust the GC to check the shared libraries' data sections for
>> references? When we looked at this for LDC that turned out to slow down
>> GC runs significantly.
>> I'm pretty sure bearophile benchmarked it at the time.
>> As far as I remember the main problem was that we were scanning all data
>> sections - even of plain C libraries.
>> Regards,
>> Christian
> 
> When adding more ranges in the GC to check, slowdowns are inevitable. So
> far in my personal testing, the slowdowns seem pretty negligible in
> comparison (never more than 0.300 seconds, though that could be a sign
> that I'm not pushing it in the right way).
> 
> To prevent the GC from scanning C libraries, I've added an extra check to
> only add ranges that have a D module inside them.

That sounds good. I was asking because I didn't see any code like this in  
http://bitbucket.org/goshawk/gdc - which repository is this in?

Christian