Re: LuaJIT-2 on Mac OS X and FreeBSD x86-64

[Tony Finch <dot@...>]

On Mon, 25 Oct 2010, Mike Pall wrote:
>
> Nope, this doesn't work. Address offsets in x86/x64 instructions
> are signed. And the JIT compiler folds the addresses of fixed
> objects (e.g. string constants) into offsets. This doesn't matter
> for 32 bit, since the address space wraps around at 4GB. But this
> means an object in the range 2GB-4GB may cause generated code to
> point to an invalid address on x64.

Ah I see!

Thanks for that and the other enlightening comments.

Tony.
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