osx shared libraries.

[bitwise via Digitalmars-d]

On Tue, 16 Jun 2015 15:50:32 -0400, Jacob Carlborg <doob at me.com> wrote:

> On 2015-06-16 16:56, bitwise wrote:
>
>> If anyone is willing to point me in the right direction here, it would
>> be much appreciated ;)
>> Looking at Martin's github, it doesn't appear that he's back in business
>> yet.
>
> Why don't you just do what Martin did for Linux, or is that what you  
> would like to avoid? The code was a bit more than I first thought it  
> would be. You could try doing the same for OS X and see what happens :).  
> Just replace the segments and section names with the appropriate OS X  
> names and similar stuff.
>

Heh... trying ;)

Here, there seems to be a function to put things in ctors/dtors, but it  
looks like it was copy pasted from the Elf code:
https://github.com/D-Programming-Language/dmd/blob/c718790165c3124c61e510d8352b9cb9d8ae0198/src/backend/machobj.c#L1532

I've rewritten the first line as follows, but still working on what I need  
to do to actually put the function in there.
IDXSEC seg = s->Sseg = MachObj::getsegment("__mod_init_func", "__DATA", 2,  
S_MOD_INIT_FUNC_POINTERS);

I think the S_COALESCED flag could be added to the above to allow a  
definition in every obj file like Martin's approach, but I would rather  
have an explicit DllMain and put the init code in that one obj file. It  
seems more intuitive to me.

So if I get Obj::staticctor and Obj::staticdtor working on osx, that's  
half the problem solved... I think.


   Bit