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136 lines
3.8 KiB
Python
Executable File
136 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Copyright 2016 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import argparse
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import os
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import re
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import sys
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import tempfile
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if __name__ == '__main__':
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sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
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from pylib.constants import host_paths
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if host_paths.DEVIL_PATH not in sys.path:
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sys.path.append(host_paths.DEVIL_PATH)
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from devil.utils import cmd_helper
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_MICRODUMP_BEGIN = re.compile(
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'.*google-breakpad: -----BEGIN BREAKPAD MICRODUMP-----')
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_MICRODUMP_END = re.compile(
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'.*google-breakpad: -----END BREAKPAD MICRODUMP-----')
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""" Example Microdump
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<timestamp> 6270 6131 F google-breakpad: -----BEGIN BREAKPAD MICRODUMP-----
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<timestamp> 6270 6131 F google-breakpad: V Chrome_Android:54.0.2790.0
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...
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<timestamp> 6270 6131 F google-breakpad: -----END BREAKPAD MICRODUMP-----
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"""
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def GetMicroDumps(dump_path):
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"""Returns all microdumps found in given log file
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Args:
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dump_path: Path to the log file.
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Returns:
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List of all microdumps as lists of lines.
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"""
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with open(dump_path, 'r') as d:
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data = d.read()
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all_dumps = []
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current_dump = None
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for line in data.splitlines():
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if current_dump is not None:
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if _MICRODUMP_END.match(line):
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current_dump.append(line)
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all_dumps.append(current_dump)
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current_dump = None
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else:
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current_dump.append(line)
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elif _MICRODUMP_BEGIN.match(line):
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current_dump = []
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current_dump.append(line)
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return all_dumps
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def SymbolizeMicroDump(stackwalker_binary_path, dump, symbols_path):
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"""Runs stackwalker on microdump.
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Runs the stackwalker binary at stackwalker_binary_path on a given microdump
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using the symbols at symbols_path.
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Args:
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stackwalker_binary_path: Path to the stackwalker binary.
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dump: The microdump to run the stackwalker on.
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symbols_path: Path the the symbols file to use.
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Returns:
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Output from stackwalker tool.
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"""
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with tempfile.NamedTemporaryFile() as tf:
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for l in dump:
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tf.write('%s\n' % l)
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cmd = [stackwalker_binary_path, tf.name, symbols_path]
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return cmd_helper.GetCmdOutput(cmd)
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def AddArguments(parser):
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parser.add_argument('--stackwalker-binary-path', required=True,
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help='Path to stackwalker binary.')
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parser.add_argument('--stack-trace-path', required=True,
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help='Path to stacktrace containing microdump.')
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parser.add_argument('--symbols-path', required=True,
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help='Path to symbols file.')
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parser.add_argument('--output-file',
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help='Path to dump stacktrace output to')
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def _PrintAndLog(line, fp):
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if fp:
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fp.write('%s\n' % line)
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print line
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def main():
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parser = argparse.ArgumentParser()
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AddArguments(parser)
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args = parser.parse_args()
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micro_dumps = GetMicroDumps(args.stack_trace_path)
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if not micro_dumps:
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print 'No microdump found. Exiting.'
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return 0
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symbolized_dumps = []
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for micro_dump in micro_dumps:
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symbolized_dumps.append(SymbolizeMicroDump(
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args.stackwalker_binary_path, micro_dump, args.symbols_path))
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try:
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fp = open(args.output_file, 'w') if args.output_file else None
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_PrintAndLog('%d microdumps found.' % len(micro_dumps), fp)
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_PrintAndLog('---------- Start output from stackwalker ----------', fp)
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for index, symbolized_dump in list(enumerate(symbolized_dumps)):
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_PrintAndLog(
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'------------------ Start dump %d ------------------' % index, fp)
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_PrintAndLog(symbolized_dump, fp)
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_PrintAndLog(
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'------------------- End dump %d -------------------' % index, fp)
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_PrintAndLog('----------- End output from stackwalker -----------', fp)
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except Exception:
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if fp:
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fp.close()
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raise
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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