Tracing special messages [WAS] Re: [Vm-dev] Re: normalSend,
specialObjectsArray and VM
Eliot Miranda
eliot.miranda at gmail.com
Tue Oct 5 17:50:27 UTC 2010
On Tue, Oct 5, 2010 at 9:23 AM, Mariano Martinez Peck <marianopeck at gmail.com
> wrote:
>
> Hi. So....if I want to intercept ALL message sends....going to #normalSend
> is not enough since I have #class, #==, Float>>#+ etc that are executed
> directly like bytecodes. So...my questions are now:
>
> 1) Those special selectors are those that are in "Smalltalk
> specialSelectors" ? are there more? all from there are special?
>
> 2) All those "Smalltalk specialSelectors" have their associated bytecode
> primitive in Interpreter?? If true, then I should modify all bytecodePrim*
> in Interpreter. I am right? If I do that, that's all ? I am intercepting
> everything?
>
Right. Just modify all of them to eliminate the optimized code and to
revert to normalSend. Providing you also look at the perform and method
evaluation primitives I think you'll get all sends.
There is another way. Modify the Smalltalk compiler to to use the special
selector sends.
> Thanks a lot in advance,
>
> Mariano
>
>
>
> On Sun, Oct 3, 2010 at 11:09 PM, Craig Latta <craig at netjam.org> wrote:
>
>>
>>
>> > Craig Latta has done all this work, talk to him.
>>
>> Sure, I'd be happy to discuss it.
>>
>>
>> -C
>>
>> --
>> Craig Latta
>> www.netjam.org
>> + 31 020 894 6247
>> + 1 415 287 3547
>>
>>
>>
>>
>
>
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