blob: 16840d942e73d7785b0081f92df571e2e9215cd9 [file] [log] [blame]
#!/usr/bin/env python3
#
# Copyright (C) 2017 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""Util to create a mapfile."""
from pathlib import Path
import sys
import subprocess
def create_map_file(lib_file: Path, map_file: Path, section_name: str) -> None:
"""Creates a map_file for lib_file."""
symbols = subprocess.check_output(['nm', '-g', '--defined-only', str(lib_file)],
text=True)
with map_file.open('w') as output:
output.write('# AUTO-GENERATED by mapfile.py. DO NOT EDIT.\n')
output.write(f'LIBCLANG_RT_{section_name} {{\n')
output.write(' global:\n')
for line in symbols.splitlines():
_, symbol_type, symbol_name = line.split(' ', 2)
if symbol_type in ['T', 'W', 'B', 'i']:
output.write(f' {symbol_name};\n')
output.write(' local:\n')
output.write(' *;\n')
output.write('};\n')
# for testing and standalone usage.
if __name__ == '__main__':
create_map_file(Path(sys.argv[1]), Path(sys.argv[2]), str(sys.argv[3]))