| #!/usr/bin/env python |
| # |
| # Copyright 2018 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Creates a compressed archive of unstripped binaries cataloged by |
| "ids.txt".""" |
| |
| import argparse |
| import os |
| import subprocess |
| import sys |
| import tarfile |
| |
| |
| def main(args): |
| parser = argparse.ArgumentParser() |
| parser.add_argument('ids_txt', type=str, nargs=1, |
| help='Path to ids.txt files.') |
| parser.add_argument('-o', '--output_tarball', nargs=1, type=str, |
| help='Path which the tarball will be written to.') |
| parser.add_argument('--fuchsia-build-id-dir', type=str, required=True, |
| help='Directory containing symbols for SDK prebuilts.') |
| args = parser.parse_args(args) |
| |
| ids_txt = args.ids_txt[0] |
| build_ids_archive = tarfile.open(args.output_tarball[0], 'w:bz2') |
| for line in open(ids_txt, 'r'): |
| build_id, binary_path = line.strip().split(' ') |
| |
| # Look for prebuilt symbols in the SDK first. |
| symbol_source_path = os.path.join(args.fuchsia_build_id_dir, |
| build_id[:2], |
| build_id[2:] + '.debug') |
| if not os.path.exists(symbol_source_path): |
| symbol_source_path = os.path.abspath( |
| os.path.join(os.path.dirname(ids_txt), binary_path)) |
| |
| if os.path.getsize(symbol_source_path) == 0: |
| # This is a prebuilt which wasn't accompanied by SDK symbols. |
| continue |
| |
| # Exclude stripped binaries (indicated by their lack of symbol tables). |
| readelf_output = subprocess.check_output( |
| ['readelf', '-S', symbol_source_path], universal_newlines=True) |
| if not '.symtab' in readelf_output: |
| continue |
| |
| # Archive the unstripped ELF binary, placing it in a hierarchy keyed to the |
| # GNU build ID. The binary resides in a directory whose name is the first |
| # two characters of the build ID, with the binary file itself named after |
| # the remaining characters of the build ID. So, a binary file with the build |
| # ID "deadbeef" would be located at the path 'de/adbeef.debug'. |
| build_ids_archive.add(symbol_source_path, |
| '%s/%s.debug' % (build_id[:2], build_id[2:])) |
| |
| return 0 |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main(sys.argv[1:])) |
