[PATCH] testsuite: let GDB add a dir to autoload safe-path

[Hui Zhu <hui_zhu@mentor.com>]

Hi,

When I use our test environment with GDB test threads, I got some fails because my libthread_db is not in $sdir but in $pdir.  But GDB will check saft-path before load libthread_db in $pdir.

So I make a patch to update runto to let it add a dir to safe-path if board file set safe_path.  Then for some special test environment, they can add a dir to auto load safe-path if they need.

Please help me review it.

Thanks,
Hui

2013-06-27  Hui Zhu  <hui@codesourcery.com>

	* lib/gdb.exp(runto): Call add-auto-load-safe-path.

--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -469,6 +469,10 @@ proc runto { function args } {
  	return 0
      }
  
+    if { [target_info exists safe_path] } {
+	gdb_test "add-auto-load-safe-path [target_info safe_path]"
+    }
+
      gdb_run_cmd
      
      # the "at foo.c:36" output we get with -g.