forked from OSchip/llvm-project
48 lines
1.6 KiB
Python
Executable File
48 lines
1.6 KiB
Python
Executable File
#!/usr/bin/env python
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"""
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sym_diff - Compare two symbol lists and output the differences.
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"""
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from argparse import ArgumentParser
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import sys
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from sym_check import diff, util
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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(
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'--names-only', dest='names_only',
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help='Only print symbol names',
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action='store_true', default=False)
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parser.add_argument(
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'-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(
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'--demangle', dest='demangle', action='store_true', default=False)
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parser.add_argument(
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'old_syms', metavar='old-syms', type=str,
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help='The file containing the old symbol list or a library')
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parser.add_argument(
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'new_syms', metavar='new-syms', type=str,
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help='The file containing the new symbol list or a library')
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args = parser.parse_args()
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old_syms_list = util.extract_or_load(args.old_syms)
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new_syms_list = util.extract_or_load(args.new_syms)
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added, removed, changed = diff.diff(old_syms_list, new_syms_list)
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report, is_break = diff.report_diff(added, removed, changed,
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names_only=args.names_only,
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demangle=args.demangle)
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if args.output is None:
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print(report)
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else:
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with open(args.output, 'w') as f:
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f.write(report + '\n')
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sys.exit(is_break)
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if __name__ == '__main__':
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main()
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