Re: [xmlvm-dev] Several questions about generated code

[Paul P. <bay...@gm...>]

Hi Shai,

Fortunately you're not alone in experiencing the XMLVM_MEMCPY issue.  I am
looking into this as well.  Let me know if you find anything.

Aside from enabling NullPointerException and ArrayIndexOutOfBoundsException
checks, you can also enable stack traces:
#define XMLVM_ENABLE_STACK_TRACES

All 3 of those are handy, but keep in mind they significantly decrease
performance, especially checking for NullPointerExceptions.

Thanks,
Paul


On Tue, Sep 20, 2011 at 1:36 PM, Shai <sha...@ya...> wrote:

> > I just committed support for array bounds check. You need to compile
>
> > your app with #define XMLVM_ENABLE_ARRAY_BOUNDS_CHECK to enable it.
>
> Thanks allot. I just updated to get this and unfortunately it doesn't solve
> that issue. I'll try to dig in and figure this one out
>
> >>  While we are on the subject are there other things from the JVM spec
> that
> > weren't implemented, off the top of my head I think we also depend on
> > variables defaulting to 0/false especially in arrays.
> >
> > We do bzero arrays as well as initialize all variables. Can you send a
> > specific example?
>
> I didn't run into a problem here. I was just trying to figure out if there
> are other minor incompatibilities between XMLVM's C backend and the JVM
> specification that you are aware of (I gave the zeroing of arrays as an
> example). I can't really think of anything specific right now.
>
> Anyway, thanks again. I'll take another look at the code and try to figure
> out why LLVM isn't working and the cause of this crash.
>
>
>
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