Problems with shared library (-fPIC) and tango

[e-t172]

Sean Kelly a écrit :
> == Quote from e-t172 (e-t172 at akegroup.org)'s article
>> Lars Ivar Igesund a écrit :
>>> There is a ticket related to this somewhere. I believe I was told once that
>>> part of the problem is that _all_ of the runtime can't be part of the
>>> dynamic library, but that there needs to be a static portion too with at
>>> least main. The above issue may have more to do with the effect of PIC on
>>> the code though. It would be very good if it could be resolved.
>> IIRC, there is only one problem when trying to build Tango with -fPIC :
>> the garbage collector, which segfaults on collection. Fix the GC and you
>> have your Tango shared library.
> 
> I believe this is an issue with the static data segments not being represented
> in the way that the GC expects in a shared library.  I really need to do some
> research to figure out how things are different in this instance.  Though if
> someone knows then that would be good too :-)

When I tried to build Tango in a .so (all Tango, not just the runtime), 
there was another (much less important) problem: when the executable 
starts, all the static main() functions of all modules were executed, 
even if I didn't use them. This can be a problem. When I executed my 
"Hello Word", I got messages about cluster initialization...