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87 lines
2.6 KiB
87 lines
2.6 KiB
#!/usr/bin/python2
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#
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# Copyright (c) 2015 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Generate or update an existing config (.options file) for libfuzzer test.
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Invoked by GN from fuzzer_test.gni.
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"""
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import ConfigParser
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import argparse
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import os
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import sys
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def AddSectionOptions(config, section_name, options):
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"""Add |options| to the |section_name| section of |config|.
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Throws an
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assertion error if any option in |options| does not have exactly two
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elements.
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"""
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if not options:
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return
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config.add_section(section_name)
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for option_and_value in options:
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assert len(option_and_value) == 2, (
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'%s is not an option, value pair' % option_and_value)
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config.set(section_name, *option_and_value)
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def main():
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parser = argparse.ArgumentParser(description='Generate fuzzer config.')
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parser.add_argument('--config', required=True)
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parser.add_argument('--dict')
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parser.add_argument('--libfuzzer_options', nargs='+', default=[])
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parser.add_argument('--asan_options', nargs='+', default=[])
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parser.add_argument('--msan_options', nargs='+', default=[])
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parser.add_argument('--ubsan_options', nargs='+', default=[])
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parser.add_argument(
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'--environment_variables',
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nargs='+',
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default=[],
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choices=['AFL_DRIVER_DONT_DEFER=1'])
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args = parser.parse_args()
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# Script shouldn't be invoked without any arguments, but just in case.
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if not (args.dict or args.libfuzzer_options or args.environment_variables or
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args.asan_options or args.msan_options or args.ubsan_options):
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return
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config = ConfigParser.ConfigParser()
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libfuzzer_options = []
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if args.dict:
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libfuzzer_options.append(('dict', os.path.basename(args.dict)))
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libfuzzer_options.extend(
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option.split('=') for option in args.libfuzzer_options)
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AddSectionOptions(config, 'libfuzzer', libfuzzer_options)
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AddSectionOptions(config, 'asan',
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[option.split('=') for option in args.asan_options])
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AddSectionOptions(config, 'msan',
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[option.split('=') for option in args.msan_options])
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AddSectionOptions(config, 'ubsan',
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[option.split('=') for option in args.ubsan_options])
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AddSectionOptions(
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config, 'env',
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[option.split('=') for option in args.environment_variables])
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# Generate .options file.
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config_path = args.config
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with open(config_path, 'w') as options_file:
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options_file.write(
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'# This is an automatically generated config for ClusterFuzz.\n')
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config.write(options_file)
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if __name__ == '__main__':
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main()
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