--- a/extract-system-config.py	Mon Jun 01 14:21:35 2015 +0900
+++ a/extract-system-config.py	Mon Sep 28 11:41:33 2015 +0200
@@ -152,6 +152,9 @@ 
                     # ubuntu 1404
                     '/usr/lib/debug/lib/x86_64-linux-gnu/ld-2.19.so',
                     '/usr/lib/debug/lib/i386-linux-gnu/ld-2.19.so',
+                    # ubuntu 1504
+                    '/usr/lib/debug/lib/x86_64-linux-gnu/ld-2.21.so',
+                    '/usr/lib/debug/lib/i386-linux-gnu/ld-2.21.so',
                     ]
     for file in files_to_try:
         if os.path.isfile (file):
@@ -176,6 +179,7 @@ 
     print ''
 
 def main(argv):
+    print("test0")
     config_filename = ''
     debug_filename = ''
     try:
@@ -200,10 +204,14 @@ 
     if debug_filename == '':
         debug_filename = search_debug_file ()
     debug = DebugData (debug_filename)
+    print("test1")
     data = debug.get_struct_size ('rtld_global')
+    print("test1")
     if data is None:
+        print("eww1 ")
         sys.exit (1)
     config.write ('#define CONFIG_RTLD_GLOBAL_SIZE ' + str(data.data) + '\n')
+    print("success1 ")
 
     data = debug.get_struct_size ('rtld_global_ro')
     if data is None: