From b743d63fde73cde72ddd80f5cd654e369e7d7bf0 Mon Sep 17 00:00:00 2001
From: Dhananjay Balan <mb.dhananjay@gmail.com>
Date: Fri, 9 Aug 2013 17:46:37 +0530
Subject: Catch nonvalid indexes.

Catch IndexErrors generated while referancing non existant indexes.
---
 tools/gdb/python/rtems.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/tools/gdb/python/rtems.py b/tools/gdb/python/rtems.py
index 8eb49c9..dbfd7c7 100644
--- a/tools/gdb/python/rtems.py
+++ b/tools/gdb/python/rtems.py
@@ -130,10 +130,14 @@ class rtems_semaphore(gdb.Command):
             except ValueError:
                 print "error: %s is not an index" % (val)
                 return
+            try:
+                obj = objects.information.object_return( self.api,
+                                                         self._class,
+                                                         index ).dereference()
+            except IndexError:
+                print "error: index %s is invalid" % (index)
+                return
 
-            obj = objects.information.object_return( self.api,
-                                                 self._class,
-                                                 int(index)).dereference()
             instance = classic.semaphore(obj)
             instance.show(from_tty)
         objects.information.invalidate()
-- 
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