[dmd-internals] __tls_callbacks_a

[Rainer Schuetze]

_tls_callbacks_a is defined to a single zero entry in the C runtime 
library, see the module tlsdata.obj from snn.lib.

I guess you know this, but here's a very in depth article about TLS 
under windows: http://www.nynaeve.net/?p=183

Maybe you can patch the corresponding entry off the _tls_used data 
struct very early, so the TLS callback are called when necessary.

On 19.01.2012 11:40, Alex wrote:
> Anyone have a clue? As said, this is quite essential for implementing
> a TLS-supporting VM in D.
>
> Regards,
> Alex
>
> On Tue, Jan 17, 2012 at 8:59 AM, Alex<xtzgzorex at gmail.com>  wrote:
>> Hi,
>>
>> It seems that either DMD or Optlink is emitting this symbol, most
>> likely because it was expected that users would like to define TLS
>> callbacks. However, in D we have nothing like _CRTALLOC() or
>> __declspec(allocate()), so we cannot specify that we want a callback
>> registered there. This callback is rather essential for a virtual
>> machine that me and a few others are working on, so is there some kind
>> of workaround we could use? Or perhaps we're just missing the way this
>> is supposed to used in the first place?
>>
>> Regards,
>> Alex
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