[cacao] mmap first page

[Stefan Ring]

> With the latest changeset [1] I finally disabled the mmap of the first
> page in our trap handling code by default. Note that this also
> obsoletes IcedTea's 'cacao-no-mmap-first-page' patch.

Funny, I worked on the same thing yesterday in the evening...

> This is still true. I strongly suspect that this changeset breaks
> Cacao for Solaris but I cannot verify that. It would be great if

I can check that on OpenSolaris (i386/x86_64), if this helps.