Teach GDBserver's Linux backend about no unwaited-for children (TARGET_WAITKIND_NO_RE...

[deliverable/binutils-gdb.git] / gdb / gdbserver / server.c

diff --git a/gdb/gdbserver/server.c b/gdb/gdbserver/server.c
index 115aca4d8f9eddee87883e9d8116f4638d52fd4b..9868af628fc2ff0bc2a2420fe0ff3d2f65afc423 100644 (file)
--- a/gdb/gdbserver/server.c
+++ b/gdb/gdbserver/server.c
@@ -2367,8 +2367,18 @@ resume (struct thread_resume *actions, size_t num_actions)
     {
       last_ptid = mywait (minus_one_ptid, &last_status, 0, 1);
 
+      if (last_status.kind == TARGET_WAITKIND_NO_RESUMED)
+       {
+         /* No proper RSP support for this yet.  At least return
+            error.  */
+         sprintf (own_buf, "E.No unwaited-for children left.");
+         disable_async_io ();
+         return;
+       }
+
       if (last_status.kind != TARGET_WAITKIND_EXITED
-          && last_status.kind != TARGET_WAITKIND_SIGNALLED)
+          && last_status.kind != TARGET_WAITKIND_SIGNALLED
+         && last_status.kind != TARGET_WAITKIND_NO_RESUMED)
        current_inferior->last_status = last_status;
 
       /* From the client's perspective, all-stop mode always stops all
@@ -3897,7 +3907,11 @@ handle_target_event (int err, gdb_client_data client_data)
   last_ptid = mywait (minus_one_ptid, &last_status,
                      TARGET_WNOHANG, 1);
 
-  if (last_status.kind != TARGET_WAITKIND_IGNORE)
+  if (last_status.kind == TARGET_WAITKIND_NO_RESUMED)
+    {
+      /* No RSP support for this yet.  */
+    }
+  else if (last_status.kind != TARGET_WAITKIND_IGNORE)
     {
       int pid = ptid_get_pid (last_ptid);
       struct process_info *process = find_process_pid (pid);