8158 Want named threads API
9857 proc manpages should have LIBRARY section

*** 22,32 ****
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*
!  * Copyright (c) 2013, Joyent, Inc. All rights reserved.
   * Copyright (c) 2013 by Delphix. All rights reserved.
   */
  
  #include <sys/types.h>
  #include <sys/uio.h>
--- 22,32 ----
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*
!  * Copyright 2018 Joyent, Inc.
   * Copyright (c) 2013 by Delphix. All rights reserved.
   */
  
  #include <sys/types.h>
  #include <sys/uio.h>
*** 350,359 ****
--- 350,391 ----
          }
  
          return (-1);
  }
  
+ int
+ Plwp_getname(struct ps_prochandle *P, lwpid_t lwpid,
+     char *buf, size_t bufsize)
+ {
+         char lwpname[THREAD_NAME_MAX];
+         char *from = NULL;
+         lwp_info_t *lwp;
+ 
+         if (P->state == PS_IDLE) {
+                 errno = ENODATA;
+                 return (-1);
+         }
+ 
+         if (P->state != PS_DEAD) {
+                 if (getlwpfile(P, lwpid, "lwpname",
+                     lwpname, sizeof (lwpname)) != 0)
+                         return (-1);
+                 from = lwpname;
+         } else {
+                 if ((lwp = getlwpcore(P, lwpid)) == NULL)
+                         return (-1);
+                 from = lwp->lwp_name;
+         }
+ 
+         if (strlcpy(buf, from, bufsize) >= bufsize) {
+                 errno = ENAMETOOLONG;
+                 return (-1);
+         }
+ 
+         return (0);
+ }
+ 
  int
  Plwp_getspymaster(struct ps_prochandle *P, lwpid_t lwpid, psinfo_t *ps)
  {
          lwpstatus_t lps;