11689 ::refstr would be useful
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: Jason King <jason.king@joyent.com>

@@ -4080,10 +4080,12 @@
             "  -d   report times in decimal\n"
             "  -l   prints the number of clock ticks since system boot\n"
             "  -x   report times in hexadecimal\n");
 }
 
+extern int cmd_refstr(uintptr_t, uint_t, int, const mdb_arg_t *);
+
 static const mdb_dcmd_t dcmds[] = {
 
         /* from genunix.c */
         { "as2proc", ":", "convert as to proc_t address", as2proc },
         { "binding_hash_entry", ":", "print driver names hash table entry",

@@ -4110,10 +4112,11 @@
             ps_help },
         { "pflags", NULL, "display various proc_t flags", pflags },
         { "pgrep", "[-x] [-n | -o] pattern",
                 "pattern match against all processes", pgrep },
         { "ptree", NULL, "print process tree", ptree },
+        { "refstr", NULL, "print string from a refstr_t", cmd_refstr, NULL },
         { "sysevent", "?[-sv]", "print sysevent pending or sent queue",
                 sysevent},
         { "sysevent_channel", "?", "print sysevent channel database",
                 sysevent_channel},
         { "sysevent_class_list", ":", "print sysevent class list",