Am 06.09.2013 03:51, schrieb Martin Nowak:
On 09/01/2013 05:26 PM, Rainer Schuetze wrote:
Maybe already deep into implementation but how are we going to deal with
the initialization of data?
module sharedlib;
__gshared int var;
module exe;
import sharedlib;
__gshared int* pvar = &var;
(This kind of relocation also has to be done for stuff like
TypeInfo_Class). It needs initialization code to fill pvar with the
correct pointer.
Based on your saying that there are no absolute data relocations for
this on windows we'd have to perform runtime initialization.
At runtime it would simply copy _imp_var into pvar, right?
Yes. As Rainer already mentioned we can either do this by running some
initialiers before initializing druntime, or we could add additional
information in a section of the dll and run some generic dll
initialization code.
Do we support the same for pointers in TLS?
int* tlsvar = &var;
This might need initialization per thread, or patching the original TLS
segment.
No you can't take the address of a TLS var at compile time.
Its not taking a address of a TLS variable. It is initializing a TLS
variable with the address of a __gshared variable.
--
Kind Regards
Benjamin Thaut
