[patch/testsuite] Wait for gdbserver output

[Daniel Jacobowitz <drow@false.org>]

In combination with my last change to gdbserver, this provides a nice
improvemet in test runtime.  Otherwise we issue "target remote" before the
target issues listen(); that means that we will delay for some suitably long
timeout and retry.

Will commit in a bit.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer

2004-02-28  Daniel Jacobowitz  <drow@mvista.com>

	* config/gdbserver.exp (gdbserver_gdb_load): Wait for a complete
	line of output.

Index: gdb/testsuite/config/gdbserver.exp
===================================================================
RCS file: /big/fsf/rsync/src-cvs/src/gdb/testsuite/config/gdbserver.exp,v
retrieving revision 1.6
diff -u -p -r1.6 gdbserver.exp
--- gdb/testsuite/config/gdbserver.exp	18 Jan 2004 15:23:30 -0000	1.6
+++ gdb/testsuite/config/gdbserver.exp	27 Feb 2004 17:05:13 -0000
@@ -144,11 +144,13 @@ proc gdbserver_gdb_load { server_exec } 
 	    "$gdbserver $sockethost$portnum $server_exec"]
     }
 
-    # Wait for the server to produce at least one character of output.
+    # Wait for the server to produce at least one line and an additional
+    # character of output.  This will wait until any TCP socket has been
+    # created, so that GDB can connect.
     expect {
 	-i $server_spawn_id
 	-notransfer
-	-re . { }
+	-re ".*\n." { }
     }
 
     # We can't just call close, because if gdbserver is local then that means