Re: How can firefox (sometimes) make memory executable?

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2011/6/18 Göran Uddeborg <goeran@xxxxxxxxxxx>:
> Dominick Grift:
>> its x86_64 vs. 686 issue
>>
>> x86_64 does not need execmem.
>
> But both of these systems are x86_64 systems.
>
> More exactly, why doesn't x86_64 need execmem?  Firefox does
> apparently allocate memory that is both executable and writeable on
> x86_64 systems too.

Its the JS JIT, pre firefox4 it was only available on i686 starting
with firefox4 it works on x86_64 too.
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