DragonFly kernel List (threaded) for 2003-09
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Re: Anyone protecting the stack?
On Fri, Sep 19, 2003 at 01:27:01AM +0100, Hiten Pandya wrote:
> Hmm, is this just the pmap mappings that are made non executable
> if supported by hardware? Well, aside from the pmap parts, I am
> not sure we really want this...
>
> ... I am understanding right and per the research I have done
> previously on non-exec stacks, it seems JIT compilers and the
> new Perl interpreter do not support this, although, I maybe a
> little outdated on this information.
J2SE 1.3.1 with the HotSpot compiler does create executable code objects
that are managed on the machine the stack. For what ? I don't remember.
> If it can be done without harming any functionality, it will be
> great!
I'm sure something can be worked out that'll allow this to be compatible
with Java and heavy duty JIT compilers like that.
bill
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