Trying to build Tango as dynamic library on linux

[Jacob Carlborg]

On 2010-06-27 12:35, jpf wrote:
> Hi,
> are you still working on that? I tried to use druntime as a dynamic library on
> Linux, and I had exactly the same problem. (version node not found for symbol
> _d_throw at 4)
> Googling showed that this problem has been discussed before:
> http://digitalmars.com/d/archives/digitalmars/D/libphobos_as_.so_54793.html
>
> So because of the extern(Windows) / _stdcall calling convention, dmd emits the @4
> ( http://en.wikipedia.org/wiki/Name_mangling#C_name_decoration_in_Microsoft_Windows
> )
> If I understand this
> http://people.redhat.com/drepper/symbol-versioning
> correctly, ELF uses symbol names like _d_throw at 4 as name at version. As there is no
> entry for version 4, linking fails. I guess mac is not affected, because Mach-O
> accepts _d_throw at 4 as a symbol name.
>
> It seems like nothing has changed since then.
> http://www.dsource.org/projects/druntime/browser/trunk/src/rt/deh2.d
> http://www.dsource.org/projects/druntime/browser/trunk/src/rt/deh.c
>
> _d_throw is still extern(Windows) / _stdcall and i guess dmd would still emit calls
> to _d_throw at 4 if _d_throw was changed to extern(C).
>
> Btw: Someone seems to have found a basic workaround for the name mangling problem:
> http://www.curoles.com/j/dso/dso.html
>
> But i guess, this should really be fixed in the compiler and druntime.

I've managed to solve the linker error as shown on the last link and 
then got the same problem (segmentation fault) as on that site. Is this 
a problem with the compiler or the runtime?

-- 
/Jacob Carlborg