[Vm-dev] Any patch for InterpreterSimulator

Rob Withers reefedjib at yahoo.com
Thu Oct 25 05:17:50 UTC 2007

Thanks, John.  I fixed this in ObjectMemory>>#initializeObjectMemory:, since 
I figured it belonged there more than in the Interpreter.  On running 
further, I also had to add fixes to the following, all switching from 
Smalltalk to SmalltalkImage current:

Then I hit FilePluginSimulator>>#primitiveFileRead.  This gets its file 
    file := self fileValueOf: (interpreterProxy stackValue: 3).
where the stackValue is 20, which is not an integer object and the file is 
nil.  It's beyond me.

How can I report these to Mantis.  Is there a website for it?


----- Original Message ----- 
From: "John M McIntosh" <johnmci at smalltalkconsulting.com>
To: "Squeak Virtual Machine Development Discussion" 
<vm-dev at lists.squeakfoundation.org>
Sent: Wednesday, October 24, 2007 7:20 PM
Subject: Re: [Vm-dev] Any patch for InterpreterSimulator

> >* primitiveSetGCSemaphore: Indicates a semaphore (index) to be
> signaled whenever a garbage collection occurs.
> it should have a value of zero if it's not used. Obviously in C  that's 
> zero by the magic of auto-initialization of that C variable,  and so the 
> code runs without care, but in Smalltalk it's nil and you  die.
> I'd make a mantis report and supply a patch to initialize the value 
> explicitly in the interpreter startup code initializeInterpreter: so  that 
> the simulator will run.
> On Oct 24, 2007, at 7:09 PM, Rob Withers wrote:
>> My first post on this list, and it may not be my last.  I am trying  to 
>> run the InterpreterSimulator adn am having issues.   Mathieu  Suen 
>> mentioned this list and that there may be a patch for it.   Does anyone 
>> know of a patch?
>> My current issue is:  In postGCAction, the gcSemaphoreIndex is nil,
>> which blows up in signalSemaphoreWithIndex:.  Trying to be a bit  more 
>> self
>> sufficient, I put a halt in primitiveSetGCSemaphore and reran it,  but it
>> never breaks, so it never seems to get set.   Full stop.
>> thank you,
>> Rob
> --
> ======================================================================== 
> ===
> John M. McIntosh <johnmci at smalltalkconsulting.com>
> Corporate Smalltalk Consulting Ltd.  http://www.smalltalkconsulting.com
> ======================================================================== 
> ===

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