Re: MPS: native comp

[Andrea Corallo]

Gerd Möllmann <gerd.moellmann@gmail.com> writes:

> Gerd Möllmann <gerd.moellmann@gmail.com> writes:
>
>> Gerd Möllmann <gerd.moellmann@gmail.com> writes:
>>
>>> Then, in some way Andrea sets up Lisp_Objects for what we have in the
>>> dylib when it is loaded and these land in data_vec.
>>
>> And that's exactly what's going on, from reading the code.
>> load_static_obj gets a pointer to text represention of Lisp data in the
>> dylib, and then uses Fread to make Lisp_Objects from that.
>>
>> Scratchign head...
>
> Hm, maybe...
>
> @Andrea: How are the Lisp_Objects created in load_static_obj referenced
> from the code? There must be a step that puts them into the machine
> code, right? Probably the "relocs" that are used there.
>
> If that's the case (and I'm almost sure), then we need to make these
> objects immovable.
>
> That was a nice puzzle!

Oh yes that's correct! If MPS wants to move objects referenced in ELN
files it needs to update what every elns has in his own data_relocs
array!  (Or make them immovale indeed).

ATM in the CU we refence those objects only to have the GC not collect
them.

  Andrea