Writting SO kernel in D

[Sean Kelly]

Frits van Bommel wrote:
> Sean Kelly wrote:
>> Javi wrote:
>>>
>>> Another question: Where is the runtime code localted on disk? And If 
>>> this code resides in a big file, how can I extract only the relevant 
>>> routines?
>>> Sorry, but I'm not a compiler expert.
>>
>> It's in Phobos in the /internal directory.  Under that is the /gc 
>> directory, which contains the garbage collector implementation.
>>
>> If you're using Tango, the compiler runtime is in /lib/compiler/gdc or 
>> /lib/compiler/dmd, and the garbage collector is in /lib/gc/basic.
> 
> And since he's using GDC[1] some of it is in d/phobos/gcc/ in the GDC 
> source tree, or include/d/*/gcc/ in the installed version. Specifically, 
> look at deh.d for exceptions.

Oops, good point.  In Tango all of this is in the same place, and I'd 
forgotten GPhobos was different.

> [1]: and presumably not Tango, since he's coding a kernel. Though he 
> could of course use that version just as well.

As a shameless plug, building kernels against Tango should actually be 
easier than doing so against Phobos, since the runtime can be used 
completely separately from all user-level code, the GC more easily 
replaced or customized, etc.  Kernel development was actually one of my 
primary inspirations for the Tango design, since most of the vocal Ares 
users were working on kernel projects :-)


Sean