[webkit-dev] Question about javascriptcore garbage collection

Krzysztof Kowalczyk kkowalczyk at gmail.com
Sat Sep 3 12:05:27 PDT 2005

On 9/3/05, Justin Haygood <justin at xiondigital.net> wrote:
> I had this problem when I first started porting the collector. However, the
> code I used worked after fixing it. The patch on Bugzilla that i submitted
> for it should contain the code that works. The error is probably the stack
> base and address aren't the correct ones. Have you debugged the program at
> the crash and looked at those values, and see if they make sense?
> If not, try using a different method for determining the base address. If
> they do make sense however, I don't know what to tell you

Yes, I'm positive that the stack base is correct and I've verified
that the value is on the stack and is being scanned during marking
stage of GC. But, as i described, it is not recognized as a valid
CollectorCell, because the compiler, before putting the value on the
stack, increases the pointer by 4 (I assume the reson for that are
implict casts between ValueImp and AllocatedValueImp).

-- kjk

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