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#!/usr/bin/env python
# Copyright (c) 2015 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.
"""Downloads pre-built sanitizer-instrumented third-party libraries from GCS."""
import os
import re
import subprocess
import sys
def get_ubuntu_release():
supported_releases = ['precise', 'trusty']
release = subprocess.check_output(['lsb_release', '-cs']).strip()
if release not in supported_releases:
raise Exception("Supported Ubuntu versions: %s", str(supported_releases))
return release
def get_configuration(gyp_defines):
if re.search(r'\b(msan)=1', gyp_defines):
if 'msan_track_origins=0' in gyp_defines:
return 'msan-no-origins'
if 'msan_track_origins=2' in gyp_defines:
return 'msan-chained-origins'
if 'msan_track_origins=' not in gyp_defines:
# NB: must be the same as the default value in common.gypi
return 'msan-chained-origins'
raise Exception(
"Prebuilt instrumented libraries not available for your configuration.")
def get_archive_name(gyp_defines):
return "%s-%s.tgz" % (get_configuration(gyp_defines), get_ubuntu_release())
def main(args):
gyp_defines = os.environ.get('GYP_DEFINES', '')
if not 'use_prebuilt_instrumented_libraries=1' in gyp_defines:
return 0
if not sys.platform.startswith('linux'):
raise Exception("'use_prebuilt_instrumented_libraries=1' requires Linux.")
archive_name = get_archive_name(gyp_defines)
sha1file = '%s.sha1' % archive_name
target_directory = 'src/third_party/instrumented_libraries/binaries/'
subprocess.check_call([
'download_from_google_storage',
'--no_resume',
'--no_auth',
'--bucket', 'chromium-instrumented-libraries',
'-s', sha1file], cwd=target_directory)
return 0
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))
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