catcher.py - mozsearch

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# This Source Code Form is subject to the terms of the Mozilla Public

# License, v. 2.0. If a copy of the MPL was not distributed with this file,

# You can obtain one at http://mozilla.org/MPL/2.0/.

# 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 prologue.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 prologue.py

# and catch errors.

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

# simple as possible!

# flake8: noqa: F821

import os

import sys

import traceback

def execfile(filename, globs, locs):

    with open(filename) as f:

        code = compile(f.read(), filename, "exec")

        exec(code, globs, locs)

try:

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

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

    execfile(os.path.join(testlibdir, "prologue.py"), globals(), locals())

except Exception as err:

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

    traceback.print_exc()

    sys.exit(1)