[rtems-tools commit] Catch nonvalid indexes.

[Chris Johns]

Module:    rtems-tools
Branch:    master
Commit:    b743d63fde73cde72ddd80f5cd654e369e7d7bf0
Changeset: http://git.rtems.org/rtems-tools/commit/?id=b743d63fde73cde72ddd80f5cd654e369e7d7bf0

Author:    Dhananjay Balan <mb.dhananjay at gmail.com>
Date:      Fri Aug  9 18:04:37 2013 +0530

Catch nonvalid indexes.

Catch IndexErrors generated while referancing non existant indexes.

---

 tools/gdb/python/rtems.py |   10 +++++++---
 1 files 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()