def _CollectLegacyProfile(self):
files = []
try:
files = self._profiler.CollectProfile(
self._compiler.chrome_apk,
constants.PACKAGE_INFO['chrome'])
self._MaybeSaveProfile(files)
self._step_recorder.BeginStep('Process profile')
assert os.path.exists(self._compiler.lib_chrome_so)
offsets = process_profiles.GetReachedOffsetsFromDumpFiles(
files, self._compiler.lib_chrome_so)
if not offsets:
raise Exception('No profiler offsets found in {}'.format(
'\n'.join(files)))
processor = process_profiles.SymbolOffsetProcessor(
self._compiler.lib_chrome_so)
ordered_symbols = processor.GetOrderedSymbols(offsets)
if not ordered_symbols:
raise Exception('No symbol names from offsets found in {}'.format(
'\n'.join(files)))
with open(self._GetUnpatchedOrderfileFilename(), 'w') as orderfile:
orderfile.write('\n'.join(ordered_symbols))
except Exception:
for f in files:
self._SaveForDebugging(f)
raise
finally:
self._profiler.Cleanup()
def _GenerateAndProcessProfile(self):
"""Invokes a script to merge the per-thread traces into one file."""
self._step_recorder.BeginStep('Generate Profile Data')
files = []
try:
logging.getLogger().setLevel(logging.DEBUG)
files = self._profiler.CollectProfile(
self._compiler.chrome_apk, constants.PACKAGE_INFO['chrome'])
self._step_recorder.BeginStep('Process cyglog')
if self._options.lightweight_instrumentation:
assert os.path.exists(self._compiler.lib_chrome_so)
offsets = process_profiles.GetReachedOffsetsFromDumpFiles(
files, self._compiler.lib_chrome_so)
if not offsets:
raise Exception('No profiler offsets found in {}'.format(
'\n'.join(files)))
with open(self._MERGED_CYGLOG_FILENAME, 'w') as f:
f.write('\n'.join(map(str, offsets)))
else:
with open(self._MERGED_CYGLOG_FILENAME, 'w') as merged_cyglog:
self._step_recorder.RunCommand(
[self._MERGE_TRACES_SCRIPT] + files,
constants.DIR_SOURCE_ROOT,
stdout=merged_cyglog)
except Exception:
for f in files:
self._SaveForDebugging(f)
raise
finally:
self._profiler.Cleanup()
logging.getLogger().setLevel(logging.INFO)
try:
command_args = [
'--target-arch=' + self._options.arch,
'--native-library=' + self._compiler.lib_chrome_so,
'--output=' + self._GetUnpatchedOrderfileFilename()
]
if self._options.lightweight_instrumentation:
command_args.append('--reached-offsets=' +
self._MERGED_CYGLOG_FILENAME)
else:
command_args.append('--merged-cyglog=' +
self._MERGED_CYGLOG_FILENAME)
self._step_recorder.RunCommand([self._CYGLOG_TO_ORDERFILE_SCRIPT] +
command_args)
except CommandError:
self._SaveForDebugging(self._MERGED_CYGLOG_FILENAME)
self._SaveForDebuggingWithOverwrite(self._compiler.lib_chrome_so)
raise