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#!/usr/bin/env python
#===----------------------------------------------------------------------===##
#
# The LLVM Compiler Infrastructure
#
# This file is dual licensed under the MIT and the University of Illinois Open
# Source Licenses. See LICENSE.TXT for details.
#
#===----------------------------------------------------------------------===##
"""
sym_extract - Extract and output a list of symbols from a shared library.
"""
from argparse import ArgumentParser
from libcxx.sym_check import extract, util
def main():
parser = ArgumentParser(
description='Extract a list of symbols from a shared library.')
parser.add_argument('library', metavar='shared-lib', type=str,
help='The library to extract symbols from')
parser.add_argument('-o', '--output', dest='output',
help='The output file. stdout is used if not given',
type=str, action='store', default=None)
parser.add_argument('--names-only', dest='names_only',
help='Output only the name of the symbol',
action='store_true', default=False)
parser.add_argument('--only-stdlib-symbols', dest='only_stdlib',
help="Filter all symbols not related to the stdlib",
action='store_true', default=False)
args = parser.parse_args()
if args.output is not None:
print('Extracting symbols from %s to %s.'
% (args.library, args.output))
syms = extract.extract_symbols(args.library)
if args.only_stdlib:
syms, other_syms = util.filter_stdlib_symbols(syms)
util.write_syms(syms, out=args.output, names_only=args.names_only)
if __name__ == '__main__':
main()
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