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1 # Copyright 2014 The Chromium Authors. All rights reserved. | 1 # Copyright 2014 The Chromium Authors. All rights reserved. |
2 # Use of this source code is governed by a BSD-style license that can be | 2 # Use of this source code is governed by a BSD-style license that can be |
3 # found in the LICENSE file. | 3 # found in the LICENSE file. |
4 | 4 |
5 import logging | 5 import logging |
6 import os | 6 import os |
7 import subprocess | 7 import subprocess |
8 import sys | 8 import sys |
9 import tempfile | 9 import tempfile |
10 | 10 |
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177 perf_script_path = os.path.join(constants.DIR_SOURCE_ROOT, | 177 perf_script_path = os.path.join(constants.DIR_SOURCE_ROOT, |
178 'tools', 'telemetry', 'telemetry', 'core', 'platform', 'profiler', | 178 'tools', 'telemetry', 'telemetry', 'core', 'platform', 'profiler', |
179 'perf_vis', 'perf_to_tracing.py') | 179 'perf_vis', 'perf_to_tracing.py') |
180 json_file_name = os.path.basename(perf_profile) | 180 json_file_name = os.path.basename(perf_profile) |
181 with open(os.devnull, 'w') as dev_null, \ | 181 with open(os.devnull, 'w') as dev_null, \ |
182 open(json_file_name, 'w') as json_file: | 182 open(json_file_name, 'w') as json_file: |
183 cmd = [perfhost_path, 'script', '-s', perf_script_path, '-i', | 183 cmd = [perfhost_path, 'script', '-s', perf_script_path, '-i', |
184 perf_profile, '--symfs', symfs_dir, '--kallsyms', kallsyms] | 184 perf_profile, '--symfs', symfs_dir, '--kallsyms', kallsyms] |
185 subprocess.call(cmd, stdout=json_file, stderr=dev_null) | 185 subprocess.call(cmd, stdout=json_file, stderr=dev_null) |
186 return json_file_name | 186 return json_file_name |
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