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Re: [Help-smalltalk] Announces


From: Gwenaël Casaccio
Subject: Re: [Help-smalltalk] Announces
Date: Thu, 31 Mar 2011 22:22:49 +0200

On Thu, Mar 31, 2011 at 4:14 PM, Gwenael Casaccio <address@hidden> wrote:
> Hi,
>
> I want to announce two projects for GNU Smalltalk:
>
>  1) Multiple domains or "kernels" support in the VM:
>  ---------------------------------------------------
>
>  The problem with Smalltalk is it doesn't know what is a "program",
> if you start two programs and the first change the class A it will
> impact the second programs that use it; this is a simple example,
> there are also the memory iterations, or security issues with reflection,
> ...
>  Now with the domain models you are allowed to create multiple environments
> that are separate/isolated from each others. I plan to improve the IDE to
> support it. I will write others posts to explain in depth the implementation
> and how to use it.
>
> address@hidden:MrGwen/GNU-Smalltalk.git the branch domain
>
>
>  2) GST Without ObjectTables:
>  ----------------------------
>
>  I've started it for fun :D, don't expect a fully running GST, now
> I've made a tool that generate a small image (1,5 Mo don't forget 64 bits
> pointers) and just send few messages and after it crashes ;-)
> I've removed the c bootstrap code, the compiler, and break a lot of stuffs
> too (like the GC :D) . My plans are to make the VM model simple. GST knows
> too much stuffs when I've implemented the domain support I was afraid by the
> number of classes, symbols known by the VM.
>
>  For the GC I don't know what I'll do, I think we could disuss on the ml
> about a nice GC model (don't stop the world and // compaction). Anyway
> that's the beginning of a new story.
>
>  But the first step is to clean up what I've done.
>
> address@hidden:MrGwen/GNU-Smalltalk.git the branch domainMemoryOT
> address@hidden:MrGwen/gst-bootstrap.git the image generator
>
> Cheers,
> Gwen
>

I've made some progress:

  - the builtin selectors are in the image and restored
  - fix a crash with bad casting and pointer arithmetic -_-'

Next step:

  - fixing context allocation/recycling

Cheers,
Gwen



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