cxx/utils/sym_check/sym_match.py
Eric Fiselier 2d9feb59f0 Add symbol checking script to libc++ to help manage exported symbols.
Summary:
Add symbol checking scripts for extracting a list of symbols from shared libraries and for comparing symbol lists for differences.



Reviewers: mclow.lists, danalbert, EricWF

Reviewed By: EricWF

Subscribers: majnemer, emaste, cfe-commits

Differential Revision: http://reviews.llvm.org/D4946

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@232855 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-20 22:09:29 +00:00

43 lines
1.3 KiB
Python
Executable File

#!/usr/bin/env python
"""
sym_match - Match all symbols in a list against a list of regexes.
"""
from argparse import ArgumentParser
import sys
from sym_check import util, match, extract
def main():
parser = ArgumentParser(
description='Extract a list of symbols from a shared library.')
parser.add_argument(
'--blacklist', dest='blacklist',
type=str, action='store', default=None)
parser.add_argument(
'symbol_list', metavar='symbol_list', type=str,
help='The file containing the old symbol list')
parser.add_argument(
'regexes', metavar='regexes', default=[], nargs='*',
help='The file containing the new symbol list or a library')
args = parser.parse_args()
if not args.regexes and args.blacklist is None:
sys.stderr.write('Either a regex or a blacklist must be specified.\n')
sys.exit(1)
if args.blacklist:
search_list = util.read_blacklist(args.blacklist)
else:
search_list = args.regexes
symbol_list = util.extract_or_load(args.symbol_list)
matching_count, report = match.find_and_report_matching(
symbol_list, search_list)
sys.stdout.write(report)
if matching_count != 0:
print('%d matching symbols found...' % matching_count)
if __name__ == '__main__':
main()