| #!/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])) |