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

*** 22,33 ****
  /*
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #include <sys/types.h>
  #include <sys/mkdev.h>
  #include <sys/regset.h>
  #include <string.h>
  
--- 22,31 ----
*** 369,378 ****
--- 367,378 ----
          dst->pr_flttrace = src->pr_flttrace;
          dst->pr_sysentry = src->pr_sysentry;
          dst->pr_sysexit = src->pr_sysexit;
          dst->pr_dmodel = src->pr_dmodel;
  
+         (void) memcpy(&dst->pr_secflags, &src->pr_secflags, sizeof (psecflags_t));
+ 
          lwpstatus_32_to_n(&src->pr_lwp, &dst->pr_lwp);
  }
  
  void
  lwpsinfo_32_to_n(const lwpsinfo32_t *src, lwpsinfo_t *dst)
*** 742,751 ****
--- 742,753 ----
          dst->pr_flttrace = src->pr_flttrace;
          dst->pr_sysentry = src->pr_sysentry;
          dst->pr_sysexit = src->pr_sysexit;
          dst->pr_dmodel = src->pr_dmodel;
  
+         (void) memcpy(&dst->pr_secflags, &src->pr_secflags, sizeof (psecflags_t));
+ 
          lwpstatus_n_to_32(&src->pr_lwp, &dst->pr_lwp);
  }
  
  void
  lwpsinfo_n_to_32(const lwpsinfo_t *src, lwpsinfo32_t *dst)