uts: Allow for address space randomisation.
Randomise the base addresses of shared objects, non-fixed mappings, the
stack and the heap.  Introduce a service, svc:/system/process-security,
and a tool psecflags(1) to control and observe it

*** 213,222 ****
--- 213,224 ----
          kcred->cr_zone = &zone0;
  
          priv_fillset(&CR_LPRIV(kcred));
          CR_IPRIV(kcred) = *priv_basic;
  
+         priv_addset(&CR_IPRIV(kcred), PRIV_PROC_SECFLAGS);
+ 
          /* Not a basic privilege, if chown is not restricted add it to I0 */
          if (!rstchown)
                  priv_addset(&CR_IPRIV(kcred), PRIV_FILE_CHOWN_SELF);
  
          /* Basic privilege, if link is restricted remove it from I0 */