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import errno
import logging
import os
from blinkpy.web_tests.breakpad.dump_reader import DumpReader
_log = logging.getLogger(__name__)
class DumpReaderWin(DumpReader):
"""DumpReader for windows breakpad."""
def __init__(self, host, build_dir):
super(DumpReaderWin, self).__init__(host, build_dir)
self._cdb_available = None
def check_is_functional(self):
return self._check_cdb_available()
def crash_dumps_directory(self):
path = super(DumpReaderWin, self).crash_dumps_directory()
# Crashpad stores finished crash report files in a subdirectory.
# TODO(crbug.com/782923): This test should not reach directly into the
# Crashpad database, but instead should use crashpad_database_util.
return self._host.filesystem.join(path, 'reports')
def _file_extension(self):
return 'txt'
def _get_pid_from_dump(self, dump_file):
with self._host.filesystem.open_text_file_for_reading(dump_file) as f:
crash_keys = dict([l.split(':', 1) for l in f.read().splitlines()])
if 'pid' in crash_keys:
return crash_keys['pid']
return None
def _get_stack_from_dump(self, dump_file):
minidump = dump_file[:-3] + 'dmp'
cmd = [
self._cdb_path, '-y', self._build_dir, '-c', '.lines;.ecxr;k30;q',
'-z', minidump
]
try:
stack = self._host.executive.run_command(cmd)
except:
_log.warning('Failed to execute "%s"', ' '.join(cmd))
else:
return stack
return None
def _find_depot_tools_path(self):
"""Attempt to find depot_tools location in PATH."""
for i in self._host.environ.get('PATH').split(os.pathsep):
if os.path.isfile(os.path.join(i, 'gclient')):
return i
def _check_cdb_available(self):
"""Checks whether we can use cdb to symbolize minidumps."""
if self._cdb_available is not None:
return self._cdb_available
cdb = self._host.filesystem.join(self._build_dir, 'cdb', 'cdb.exe')
try:
_ = self._host.executive.run_command([cdb, '-version'])
except:
pass
else:
self._cdb_path = cdb
self._cdb_available = True
return self._cdb_available
_log.warning("CDB is not installed; can't symbolize minidumps.")
_log.warning('')
self._cdb_available = False
return self._cdb_available
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