* procfs.c (to_attach): Create a procinfo for the current lwp.

	Add it to gdb's thread list.
	(procfs_fetch_registers, procfs_store_registers): Assume there's
	always an lwp.
	(procfs_wait): Don't add the main thread here.
	(procfs_init_inferior): Create a procinfo for the main lwp here.
	Change main thread's ptid with thread_change_ptid.
	(procfs_notice_thread): Check for exited threads.
	(procfs_corefile_thread_callback): Remove check for the main
	process.
	(procfs_make_note_section): Assume there is always a thread.

	* sol-thread.c (sol_thread_attach): Clear sol_thread_active before
	attaching.  Change the main thread ptid with thread_change_ptid.
	(sol_thread_detach): Clear sol_thread_active.
	(sol_thread_wait): Check for exited threads.
	(sol_thread_create_inferior): Clear sol_thread_active before
	creating a new inferior.  Change the main thread ptid with
	thread_change_ptid.
	(sol_thread_mourn_inferior): Clear sol_thread_active.
	(sol_find_new_threads_callback): Check for exited threads.

1 files changed, 18 insertions, 15 deletions

diff --git a/gdb/sol-thread.c b/gdb/sol-thread.c
index 51a3926..f36e4ea 100644
--- a/gdb/sol-thread.c
+++ b/gdb/sol-thread.c
@@ -253,7 +253,7 @@ td_state_string (td_thr_state_e statecode)
 
 /* Convert a POSIX or Solaris thread ID into a LWP ID.  If THREAD_ID
    doesn't exist, that's an error.  If it's an inactive thread, return
-   DEFAULT_LPW.
+   DEFAULT_LWP.
 
    NOTE: This function probably shouldn't call error().  */
 
@@ -350,6 +350,7 @@ sol_thread_open (char *arg, int from_tty)
 static void
 sol_thread_attach (char *args, int from_tty)
 {
+  sol_thread_active = 0;
   procfs_ops.to_attach (args, from_tty);
 
   /* Must get symbols from shared libraries before libthread_db can run!  */
@@ -357,14 +358,13 @@ sol_thread_attach (char *args, int from_tty)
 
   if (sol_thread_active)
     {
+      ptid_t ptid;
       printf_filtered ("sol-thread active.\n");
       main_ph.ptid = inferior_ptid; /* Save for xfer_memory.  */
       push_target (&sol_thread_ops);
-      inferior_ptid = lwp_to_thread (inferior_ptid);
-      if (PIDGET (inferior_ptid) == -1)
-	inferior_ptid = main_ph.ptid;
-      else
-	add_thread (inferior_ptid);
+      ptid = lwp_to_thread (inferior_ptid);
+      if (PIDGET (ptid) != -1)
+	thread_change_ptid (inferior_ptid, ptid);
     }
 
   /* FIXME: Might want to iterate over all the threads and register
@@ -381,6 +381,7 @@ sol_thread_attach (char *args, int from_tty)
 static void
 sol_thread_detach (char *args, int from_tty)
 {
+  sol_thread_active = 0;
   inferior_ptid = pid_to_ptid (PIDGET (main_ph.ptid));
   unpush_target (&sol_thread_ops);
   procfs_ops.to_detach (args, from_tty);
@@ -419,7 +420,7 @@ sol_thread_resume (ptid_t ptid, int step, enum target_signal signo)
   do_cleanups (old_chain);
 }
 
-/* Wait for any threads to stop.  We may have to convert PIID from a
+/* Wait for any threads to stop.  We may have to convert PTID from a
    thread ID to an LWP ID, and vice versa on the way out.  */
 
 static ptid_t
@@ -460,7 +461,8 @@ sol_thread_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
       /* See if we have a new thread.  */
       if (is_thread (rtnval)
 	  && !ptid_equal (rtnval, save_ptid)
-	  && !in_thread_list (rtnval))
+	  && (!in_thread_list (rtnval)
+	      || is_exited (rtnval)))
 	add_thread (rtnval);
     }
 
@@ -754,21 +756,21 @@ static void
 sol_thread_create_inferior (char *exec_file, char *allargs, char **env,
 			    int from_tty)
 {
+  sol_thread_active = 0;
   procfs_ops.to_create_inferior (exec_file, allargs, env, from_tty);
 
   if (sol_thread_active && !ptid_equal (inferior_ptid, null_ptid))
     {
+      ptid_t ptid;
+
       /* Save for xfer_memory.  */
       main_ph.ptid = inferior_ptid;
 
       push_target (&sol_thread_ops);
 
-      inferior_ptid = lwp_to_thread (inferior_ptid);
-      if (PIDGET (inferior_ptid) == -1)
-	inferior_ptid = main_ph.ptid;
-
-      if (!in_thread_list (inferior_ptid))
-	add_thread (inferior_ptid);
+      ptid = lwp_to_thread (inferior_ptid);
+      if (PIDGET (ptid) != -1)
+	thread_change_ptid (inferior_ptid, ptid);
     }
 }
 
@@ -822,6 +824,7 @@ sol_thread_new_objfile (struct objfile *objfile)
 static void
 sol_thread_mourn_inferior (void)
 {
+  sol_thread_active = 0;
   unpush_target (&sol_thread_ops);
   procfs_ops.to_mourn_inferior ();
 }
@@ -1366,7 +1369,7 @@ sol_find_new_threads_callback (const td_thrhandle_t *th, void *ignored)
     return -1;
 
   ptid = BUILD_THREAD (ti.ti_tid, PIDGET (inferior_ptid));
-  if (!in_thread_list (ptid))
+  if (!in_thread_list (ptid) || is_exited (ptid))
     add_thread (ptid);
 
   return 0;