druntime investigation troubles

[Steven Schveighoffer]

On Thu, 24 May 2012 15:44:28 -0400, Sean Kelly <sean at invisibleduck.org>  
wrote:

> On May 22, 2012, at 2:01 PM, Steven Schveighoffer wrote:
>
>> On Tue, 22 May 2012 15:16:30 -0400, Denis Shelomovskij  
>> <verylonglogin.reg at gmail.com> wrote:
>>
>>> 21.05.2012 2:13, Alex Rønne Petersen написал:
>>>> On 20-05-2012 22:13, Jacob Carlborg wrote:
>>>>> On 2012-05-20 18:25, Alex Rønne Petersen wrote:
>>>>>
>>>>>> Seems like I misunderstood what you were saying. Right, the C  
>>>>>> runtime on
>>>>>> *Windows* is closed source. But, I don't know why you think that
>>>>>> function is called by the C runtime; see src/rt/dmain2.d.
>>>>>
>>>>> Have a look again. It's only called on Posix:
>>>>>
>>>>> https://github.com/D-Programming-Language/druntime/blob/7d663821d39cfe8874cb95b0df46b5065a770cef/src/rt/dmain2.d#L364
>>>>>
>>>>>
>>>>>
>>>>
>>>> I stand corrected. I had no idea about the magic involved here!
>>>>
>>>> The proprietary Windows tool chain is seriously problematic...
>>>>
>>>
>>> So can anybody do something with it? At least document a bit what does  
>>> proprietary part do.
>>>
>>
>> It looks like code that is not called on Windows.  Which doesn't make  
>> sense.  It would seem that you must initialize a critical section in  
>> order to use it.
>>
>> I can't find any reference to STI_monitor in dmd, dmc, or druntime  
>> source code, except those calls that are done for Posix only.  This  
>> isn't some closed-source mystery, I think it is just unused code.
>>
>> Sean, does this make sense?  Are we using uninitialized critical  
>> sections?
>
> This code is before my time, but I believe that DMC implicitly treats  
> STI functions as module ctors, and DMD inherits this behavior because it  
> shares a C runtime with DMC.  It's been a while since I've looked at all  
> of this, but the full C runtime source is shipped with DMC--I have a  
> copy.

Yeah, I do too.  I did a full text search for STI_monitor and found  
nothing.

That's why I'm confused...

-Steve