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 # Apparently, there's simply no way to ask GDB to exit with a non-zero

 # status when the script run with the --eval-command option fails. Thus, if

 # we have --eval-command run prolog.py directly, syntax errors there will

 # lead GDB to exit with no indication anything went wrong.

 #

 # To avert that, we use this very small launcher script to run prolog.py

 # and catch errors.

 #

 # Remember, errors in this file will cause spurious passes, so keep this as

 # simple as possible!

 import os

 import sys

 import traceback

 try:

     # testlibdir is set on the GDB command line, via:

     # --eval-command python testlibdir=...

     execfile(os.path.join(testlibdir, 'prolog.py'))

 except Exception as err:

     sys.stderr.write('Error running GDB prologue:\n')

     traceback.print_exc()

     sys.exit(1)