On Mon, 19 Jul 2010, Igor Stasenko wrote:

> No, debugger, actually doing a primitive call,
> but in order to intercept a primitive failure and 'step into' method,
> it does the trick
> with replacing the subject method with temporary method (which will
> call the same primitive with same arguments & recevier).
> Then, if primitive runs ok, it simply behaves as a 'step over',
> and if primitive fails, then debugger itercepts it and creates a
> context for subject method, which should handle primitive failure.

Right, now I remember. You can't step into a method if it has a primitive 
and the primitive doesn't fail.


Levente

>
> On 19 July 2010 19:22, Schwab,Wilhelm K <bschwab at anest.ufl.edu> wrote:
>> So the external call does not happen and the fall-back code executes.  That explains it.  It might be nice if FFI calls could be made to happen, or at least to have a more informative error message, such as "Primitive not executed by the debugger" rather than "Unable to find function address."
>>
>> Bill
>>
>>
>>
>>
>> ________________________________________
>> From: pharo-project-bounces at lists.gforge.inria.fr [pharo-project-bounces at lists.gforge.inria.fr] On Behalf Of Levente Uzonyi [leves at elte.hu]
>> Sent: Monday, July 19, 2010 12:20 PM
>> To: Pharo-project at lists.gforge.inria.fr
>> Subject: Re: [Pharo-project] Debug-it and external calls
>>
>> On Mon, 19 Jul 2010, Schwab,Wilhelm K wrote:
>>
>>> I often (not always??) find that using the Debug-it command and debugging into an external call (FFI) leads to a false claim of "Unable to find function address."  Stepping over the call works; stepping into it make it look like it fails.
>>>
>>> I am curently using a 1.1 RC2 image and the 4.0.3 vm on Ubuntu.  I cannot easily move the offending code to Windows, nor do I particularly care to do so (feels good<g>), and FFI is fairly uncommon in Squeak/Pharo.
>>>
>>> Can anyone else tinker with this to see if it is real?
>>
>> IIRC when you're using the debugger, primitives are not evaluated.
>>
>>
>> Levente
>>
>>>
>>> Bill
>>>
>>>
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>>> Pharo-project at lists.gforge.inria.fr
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>>>
>>
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>>
>
>
>
> -- 
> Best regards,
> Igor Stasenko AKA sig.
>
>