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

@@ -891,10 +891,11 @@
         sp->pr_pgid  = p->p_pgrp;
         sp->pr_sid   = p->p_sessp->s_sid;
         sp->pr_taskid = p->p_task->tk_tkid;
         sp->pr_projid = p->p_task->tk_proj->kpj_id;
         sp->pr_zoneid = p->p_zone->zone_id;
+        bcopy(&p->p_secflags, &sp->pr_secflags, sizeof (psecflags_t));
         hrt2ts(mstate_aggr_state(p, LMS_USER), &sp->pr_utime);
         hrt2ts(mstate_aggr_state(p, LMS_SYSTEM), &sp->pr_stime);
         TICK_TO_TIMESTRUC(p->p_cutime, &sp->pr_cutime);
         TICK_TO_TIMESTRUC(p->p_cstime, &sp->pr_cstime);
         prassignset(&sp->pr_sigtrace, &p->p_sigmask);

@@ -1114,10 +1115,11 @@
         sp->pr_pgid  = p->p_pgrp;
         sp->pr_sid   = p->p_sessp->s_sid;
         sp->pr_taskid = p->p_task->tk_tkid;
         sp->pr_projid = p->p_task->tk_proj->kpj_id;
         sp->pr_zoneid = p->p_zone->zone_id;
+        bcopy(&p->p_secflags, &sp->pr_secflags, sizeof (psecflags_t));
         hrt2ts32(mstate_aggr_state(p, LMS_USER), &sp->pr_utime);
         hrt2ts32(mstate_aggr_state(p, LMS_SYSTEM), &sp->pr_stime);
         TICK_TO_TIMESTRUC32(p->p_cutime, &sp->pr_cutime);
         TICK_TO_TIMESTRUC32(p->p_cstime, &sp->pr_cstime);
         prassignset(&sp->pr_sigtrace, &p->p_sigmask);