Questions about windows support
torhu
no at spam.invalid
Tue Feb 21 13:11:45 PST 2012
On 21.02.2012 18:54, Benjamin Thaut wrote:
> Am 21.02.2012 04:08, schrieb torhu:
>> On 20.02.2012 22:36, Benjamin Thaut wrote:
>>> 2) Will dmd support exporting/importing data symbols from dlls? I know
>>> there is a patch that does the data symbol address patching from the
>>> runtime but thats a feature that should be supported by the compiler
>>> directly in my eyes.
>>
>> Importing data symbols works just fine both in DMD and GDC. At least it
>> did a couple of years ago. Can't remember if I've tried exporting, but I
>> wouldn't be surprised if it worked.
>>
>> You don't need to do anything special to get it working, just use
>> declare the data as 'export extern extern (C)' in your D code. For D2
>> prefix that with '__gshared'. Not very elegent, but it does work.
>
> I tried that but it does not work. For example compiler generatd data
> symbols like the module info or the vtable don't get exported even if
> the class is declared as "export" Also the tls storage does not work
> with threads across dll boundaries. And a lot of other stuff. I consider
> dll support working as soon as phobos is a shared dll.
I see. I assumed you were talking about linking with DLLs written in C.
I've never tried linking with a D DLL, except for maybe a simple test
case.
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