*** 416,425 ****
--- 416,431 ----
  
           PR_SUSPENDED   indicates that the lwp stopped due to internal
                          synchronization of lwps within the process.  pr_what
                          is unused in this case.
  
+          PR_BRAND       indicates that the lwp stopped for a brand-specific
+                         reason.  Interpretation of the value of pr_what
+                         depends on which zone brand is in use.  It is not
+                         generally expected that an lwp stopped in this state
+                         will be restarted by native proc(4) consumers.
+ 
       pr_cursig names the current signal, that is, the next signal to be
       delivered to the lwp, if any.  pr_info, when the lwp is in a PR_SIGNALLED
       or PR_FAULTED stop, contains additional information pertinent to the
       particular signal or fault (see <sys/siginfo.h>).
  
*** 616,625 ****
--- 622,639 ----
  
       pr_pctcpu and pr_pctmem are 16-bit binary fractions in the range 0.0 to
       1.0 with the binary point to the right of the high-order bit (1.0 ==
       0x8000).  pr_pctcpu is the summation over all lwps in the process.
  
+      The pr_fname and pr_psargs are writable by the owner of the process.  To
+      write to them, the psinfo file should be open for writing and the desired
+      value for the field should be written at the file offset that corresponds
+      to the member of structure.  No other entry may be written to; if a write
+      is attempted to an offset that does not represent one of these two
+      memers, or if the size of the write is not exactly the size of the member
+      being written, no bytes will be written and zero will be returned.
+ 
       pr_lwp contains the ps(1) information for the representative lwp.  If the
       process is a zombie, pr_nlwp, pr_nzomb, and pr_lwp.pr_lwpid are zero and
       the other fields of pr_lwp are undefined:
  
        typedef struct lwpsinfo {
*** 724,733 ****
--- 738,754 ----
       Contains the initial values of the process's aux vector in an array of
       auxv_t structures (see <sys/auxv.h>).  The values are those that were
       passed by the operating system as startup information to the dynamic
       linker.
  
+    argv
+      Contains the concatenation of each of the argument strings, including
+      their NUL terminators, in the argument vector (argv) for the process.  If
+      the process has modified either its argument vector, or the contents of
+      any of the strings referenced by that vector, those changes will be
+      visible here.
+ 
     ldt
       This file exists only on x86-based machines.  It is non-empty only if the
       process has established a local descriptor table (LDT).  If non-empty,
       the file contains the array of currently active LDT entries in an array
       of elements of type struct ssd, defined in <sys/sysi86.h>, one element
*** 2086,2095 ****
--- 2107,2118 ----
               process privileges
       /proc/pid/sigact
               process signal actions
       /proc/pid/auxv
               process aux vector
+      /proc/pid/argv
+              process argument vector
       /proc/pid/ldt
               process LDT (x86 only)
       /proc/pid/usage
               process usage
       /proc/pid/lusage