How to convert 32-bit images to 64-bit images?

 

 


> On 2021-04-12, at 2:39 AM, Marcel Taeumel <[hidden email]> wrote:
>
> Hi all!
>
> How would one convert a 32-bit image into a 64-bit one? Is there a tool or tutorial?

There's a very good tool; part of the VMMaker package.
Load VMMaker and use
`Spur64to32BitImageConverter new bootstrapImage: 'My64bit.image'`
or indeed the Spur32to64BitImageConverter.

tim
--
tim Rowledge; [hidden email]; http://www.rowledge.org/tim
Strange OpCodes: XER: Exclusive ERror

 
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Hi,

One document that I've found interesting is :

http://wiki.squeak.org/squeak/769

"FAQ: How can I bootstrap a Squeak image?"

It discusses technologies that I'm personally NOT familiar with such as
KernelImage and SystemTracer.

This is not really an answer to your question but the subject is similar,
namely how to build or convert an image.

As to Tim Rowledge answer to check out Spur32to64BitImageConverter,
this is probably a much better answer.

Regards,
David Stes

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According to http://wiki.squeak.org/squeak/2315
using the package from http://www.squeaksource.com/SystemTracing
an old (but potentially interesting) method would be :

  SystemTracer64 writeImage: 'clone-64bit.image'

et voila ... image cloned to a 64bit image.

In practice it may be a little bit more complex.

For example I open Squeak4.6-15102.image,
then fileIn the SystemTracing package (Monticello) that works.

Loading SystemTracingV3-dtl.29.mcz works

It has an interesting looking script : traceTo64Script

"This is a script that can be filed into a 32bit image to trace that image
to 64bit format ..."

But the above method creates for me the error

Tracing and writing 421965 objects ... MessageNotUnderstood:isCompiledCode

If you manage to do this, I'd be interested in your experiences.

David Stes

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When I use an older version of the SystemTracing package, it is fast,
and it converts from 32bit to 64bit, so it works !

In my case for Squeak4.6-15102.image I used SystemTracing-dtl.21.mcz
instead of the latest SystemTracing-dtl.29.mcz.  The 21 version seems to be OK.

It's very fast and says after a few seconds: "Done tracing!"

I'm impressed:

$ ckformat test-64bit.image
68002

it effectively seems to clone the

$ ckformat test.image
6505

to a 64bit format image.

Unfortunately when I open the 68002 image, it works, the image opens,
but it seems it's still displaying the "Tracing and writing" message.

I think I probably have to follow the SystemTracing instructions to
do this without first filing in the package ...

David Stes

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Hi Marcel,

The reference in http://wiki.squeak.org/squeak/2315 (last paragraph),
I read the info in the "The Interactive Programming Environment" red book,
by Adele Goldberg: it says in 23.4 page 487

"To initiate the VMem-write, evaluate the expression
       
        SystemTracer writeClone"

Anyway I have not yet been succesful in running converted 64bit images,
but if you have done it, I'd be interested in this.

Also the above SystemTracer writeClone which according to the red book,
worked in old Smalltalk systems, does not work for me nowadays.

I get the error:  SmalltalkImage allBehaviorsDo: message not understood.
in Squeak4.6.

In Squeak6.0 with the Cog VM I get a subscript out of bounds in clamp:

I think writeClone and clamp: are messages from the SystemTracer package.

David Stes

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On Fri, Apr 23, 2021 at 22:50, [hidden email] <[hidden email]> wrote:

Hi Marcel,

The reference in http://wiki.squeak.org/squeak/2315 (last paragraph),
I read the info in the "The Interactive Programming Environment" red book,
by Adele Goldberg: it says in 23.4 page 487

"To initiate the VMem-write, evaluate the expression

SystemTracer writeClone"

Anyway I have not yet been succesful in running converted 64bit images,
but if you have done it, I'd be interested in this.

Also the above SystemTracer writeClone which according to the red book,
worked in old Smalltalk systems, does not work for me nowadays.

I get the error: SmalltalkImage allBehaviorsDo: message not understood.
in Squeak4.6.

In Squeak6.0 with the Cog VM I get a subscript out of bounds in clamp:

I think writeClone and clamp: are messages from the SystemTracer package.

David Stes