2015-03-21 06:09:29 +08:00
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#!/usr/bin/env python
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2016-01-20 05:58:49 +08:00
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#===----------------------------------------------------------------------===##
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#
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2019-01-19 18:56:40 +08:00
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# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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# See https://llvm.org/LICENSE.txt for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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2016-01-20 05:58:49 +08:00
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#
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#===----------------------------------------------------------------------===##
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2015-03-21 06:09:29 +08:00
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"""
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sym_extract - Extract and output a list of symbols from a shared library.
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"""
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from argparse import ArgumentParser
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2017-02-10 06:53:14 +08:00
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from libcxx.sym_check import extract, util
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2015-03-21 06:09:29 +08:00
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def main():
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parser = ArgumentParser(
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description='Extract a list of symbols from a shared library.')
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parser.add_argument('library', metavar='shared-lib', type=str,
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help='The library to extract symbols from')
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parser.add_argument('-o', '--output', dest='output',
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help='The output file. stdout is used if not given',
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type=str, action='store', default=None)
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parser.add_argument('--names-only', dest='names_only',
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help='Output only the name of the symbol',
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action='store_true', default=False)
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2016-11-18 09:40:20 +08:00
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parser.add_argument('--only-stdlib-symbols', dest='only_stdlib',
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help="Filter all symbols not related to the stdlib",
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action='store_true', default=False)
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2019-02-12 08:00:43 +08:00
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parser.add_argument('--defined-only', dest='defined_only',
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help="Filter all symbols that are not defined",
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action='store_true', default=False)
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parser.add_argument('--undefined-only', dest='undefined_only',
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help="Filter all symbols that are defined",
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action='store_true', default=False)
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2015-03-21 06:09:29 +08:00
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args = parser.parse_args()
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2019-02-12 08:00:43 +08:00
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assert not (args.undefined_only and args.defined_only)
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2015-03-21 06:09:29 +08:00
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if args.output is not None:
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print('Extracting symbols from %s to %s.'
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% (args.library, args.output))
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syms = extract.extract_symbols(args.library)
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2016-11-18 09:40:20 +08:00
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if args.only_stdlib:
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syms, other_syms = util.filter_stdlib_symbols(syms)
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2019-02-12 08:00:43 +08:00
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filter = lambda x: x
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if args.defined_only:
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filter = lambda l: list([x for x in l if x['is_defined']])
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if args.undefined_only:
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filter = lambda l: list([x for x in l if not x['is_defined']])
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util.write_syms(syms, out=args.output, names_only=args.names_only, filter=filter)
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2015-03-21 06:09:29 +08:00
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if __name__ == '__main__':
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main()
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