Hey All,

I've updated this patch to the latest HEAD. This patch is a preparatory patch 
for ASLR. It makes it so that PS_STRINGS, USRSTACK, the VDSO, and the signal 
trampolining code pointers are all stored per-process. Going forward, with 
HardenedBSD's ASLR patch, these values will be modified to introduce 
randomness/entropy. The goal with this patch is to allow randomization of the 
stack base address and the VDSO.

You can find the patch here: https://reviews.freebsd.org/D3565


Shawn Webb

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