[Vm-dev] How to track message sends in CompiledMethod object?

[Eliot Miranda]

Hi Mariano,

I would put it in addNewMethodToCache.  I wold also consider using the
unused header bit in CompiledMethod instead of the unused object header bit
(see CompiledMethod>>clearFlag & CompiledMethod>>flag).

On Mon, Aug 23, 2010 at 9:34 AM, Mariano Martinez Peck <
marianopeck at gmail.com> wrote:

>
> Hi folks. I am using the lsat free bit of the Squeak Object header to do
> some experiments. What I need to do now is to be able to set such bit for
> the CompiledMethod objects, when those selectors are sent.
>
> Suppose that from the image side I do "Date today yyyymmdd"  then I want to
> set that bit in the object header of the CompiledMethod Date>> #today and
> CompiledMethod Date>> #yyyymmdd
>
> Now....I check in the VM and I am not sure where I should do that. I
> already have my own primitive so that I can do something like this:
>
> ((self isIntegerObject: rcvr) not and: [hasToTrace])
>         ifTrue: [
>             self internalTurnOnUsedBit: rcvr.
>             ].
>
> Now...where I can intercept this in the VM? I found Interpreter >>
> internalExecuteNewMethod
>
> is it there? should I access to "newMethod" and do something like this:
>
> rcvr := "somehow I access to Interpreter newMethod"
> ((self isIntegerObject: rcvr) not and: [hasToTrace])
>         ifTrue: [
>             self internalTurnOnUsedBit: rcvr.
>             ].
>
>
> thanks for any help
>
> mariano
>
>
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