Re: Workarounds for LuaJIT's 4GB limit
- From: Sean Conner <sean@xxxxxxxxxx>
- To: luajit@xxxxxxxxxxxxx
- Date: Tue, 21 Oct 2014 11:57:53 -0400
It was thus said that the Great Florian Weimer once stated:
> * Mike Pall:
>
> > Florian Weimer wrote:
> >> From this, I infer that all valid userspace pointers on x86_64 are
> >> representable as lightuserdata values.
> >
> > Solaris also uses the negative x64 address space in user mode (for
> > stacks and default mmap). I have no plans to deal with this oddity.
>
> Wow. I didn't know this was even supported by the silicon.
Why not? Addresses presented to processes are virtual and as long as, for
example, address $FFC0000012345670 is mapped into the process I don't see a
problem with "negative" addresses.
-spc (Sad to hear that LuaJIT will probably never see the light of day on
Solaris ... )
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