| # Copyright 2023 The Pigweed Authors |
| # |
| # 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 |
| # |
| # https://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. |
| """Wrapper script to run arm-none-eabi-gdb with Python 3.8.""" |
| |
| import os |
| from pathlib import Path |
| import shutil |
| import signal |
| import sys |
| import subprocess |
| |
| |
| def main() -> int: |
| """arm-gdb wrapper that sets up the Python environment for gdb""" |
| |
| # Find 'arm-none-eabi-gdb' as long as it isn't in the current Python |
| # virtualenv entry point. In other words: not this script. |
| exclude_paths = sys.path |
| venv = os.environ.get('VIRTUAL_ENV') |
| if venv: |
| venv_path = Path(venv).resolve() |
| exclude_paths.append(os.path.join(venv_path, 'Scripts')) |
| arm_gdb_binary = shutil.which( |
| 'arm-none-eabi-gdb', |
| path=os.pathsep.join( |
| [ |
| path_entry |
| for path_entry in os.environ.get('PATH', '').split(os.pathsep) |
| if str(Path(path_entry).resolve()) not in exclude_paths |
| ] |
| ), |
| ) |
| assert arm_gdb_binary |
| |
| arm_gdb_path = Path(arm_gdb_binary) |
| arm_install_prefix = arm_gdb_path.parent.parent |
| python_home = arm_install_prefix / 'python/bin/python3' |
| python_path = arm_install_prefix / 'python/lib/python3.8' |
| assert arm_gdb_path.is_file() |
| |
| env = os.environ.copy() |
| # Only set Python if it's in the expected location. |
| if python_home.is_file() and python_path.is_dir(): |
| env['PYTHONHOME'] = str(python_home) |
| env['PYTHONPATH'] = str(python_path) |
| |
| # Ignore Ctrl-C to allow gdb to handle normally |
| signal.signal(signal.SIGINT, signal.SIG_IGN) |
| return subprocess.run( |
| [str(arm_gdb_path)] + sys.argv[1:], env=env, check=False |
| ).returncode |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main()) |