[Vm-dev] Re: [Pharo-dev] 32 bits and 64 bits VM

[Esteban Lorenzano]

I wonder how. 
AFAIK different length of word will warranty that you cannot use most of the plugins (in the case you actually can compile the vm without made any change). 
I know Dave made the interpreter vm compilable in 64bits, with a flag or something. But that not talks about the plugins (FFI, in particular, I do not think will work). 
For compiling the stack/cog there are other problems, I think. I may be wrong, but even the StackVM will have some problems because registers change in 64bits. 
… or I’m having wrong assumptions, and it is easily feasible, but I do not think so. 

Esteban

On 16 May 2014, at 16:31, Chris Cunningham <cunningham.cb at gmail.com> wrote:

> Right.  Running an image natively in 64 bits doesn't mean you have to have a 64 bit image as well.
> http://timmydosmalltalk.wordpress.com/2014/03/13/howto-build-a-64-native-standardvm-running-32-bit-image-on-slackware-linux-14-1-with-32-bit-compat-libs/
> (not my work at all - just sharing).
> 
> -cbc
> 
> 
> On Fri, May 16, 2014 at 6:33 AM, Hilaire Fernandes <hilaire.fernandes at gmail.com> wrote:
> the SqueakVM https://packages.debian.org/sid/amd64/squeak-vm/download
> is linked against 64bits libraries, at least as far as I am correct this
> is what say:
> 
> ldd squeakvm
> 
> Next I tested I can run DrGeo (1.4 pharo based, 32 bits image) with this
> VM on a 64 bits host (uname -a).
> 
> Pharo 2 does not work as this vm is too old.
> 
> Where am I wrong?
> 
> Hilaire
> 
> Le 16/05/2014 10:20, Esteban Lorenzano a écrit :
> > I do not understand. To compile a regular vm in a 64bits platform is trivial. You just need to have the 32bits library installed.
> > But to have a 64bits vm that runs on 64bits… that’s another very different history:
> 
> --
> Dr. Geo http://drgeo.eu
> 
> 
> 

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