def testParseStackFrameForJavaCallstackFormat(self):
language_type = None
format_type = CallStackFormatType.JAVA
self.assertIsNone(
StackFrame.Parse(language_type, format_type, 'dummy line', {}))
deps = {'org/': Dependency('org/', 'https://repo', '1')}
frame = StackFrame.Parse(language_type, format_type,
' at org.a.b(a.java:609)', deps)
self._VerifyTwoStackFramesEqual(
frame,
StackFrame(0, 'org/', 'org.a.b', 'a.java', 'org/a.java', [609]))
def testParseStackFrameForSyzyasanCallstackFormat(self):
language_type = None
format_type = CallStackFormatType.SYZYASAN
self.assertIsNone(
StackFrame.Parse(language_type, format_type, 'dummy line', {}))
deps = {'src/content': Dependency('src/content', 'https://repo', '1')}
frame = StackFrame.Parse(language_type, format_type,
'c::p::n [src/content/e.cc @ 165]', deps)
self._VerifyTwoStackFramesEqual(
frame,
StackFrame(0, 'src/content', 'c::p::n', 'e.cc', 'src/content/e.cc',
[165]))
def Parse(self,
stacktrace_string,
deps,
signature=None,
top_n_frames=None):
"""Parse fracas stacktrace string into Stacktrace instance."""
# Filters to filter callstack buffers.
filters = [
callstack_filters.FilterInlineFunction(),
callstack_filters.KeepTopNFrames(top_n_frames
or DEFAULT_TOP_N_FRAMES)
]
stacktrace_buffer = StacktraceBuffer(signature=signature,
filters=filters)
stack_detector = callstack_detectors.ChromeCrashStackDetector()
# Initial background callstack which is not to be added into Stacktrace.
stack_buffer = CallStackBuffer()
for line in stacktrace_string.splitlines():
start_of_callstack = stack_detector(line)
if start_of_callstack:
stacktrace_buffer.AddFilteredStack(stack_buffer)
stack_buffer = CallStackBuffer.FromStartOfCallStack(
start_of_callstack)
else:
frame = StackFrame.Parse(stack_buffer.language_type,
stack_buffer.format_type, line, deps,
len(stack_buffer.frames))
if frame is not None:
stack_buffer.frames.append(frame)
# Add the last stack to stacktrace.
stacktrace_buffer.AddFilteredStack(stack_buffer)
return stacktrace_buffer.ToStacktrace()
def Parse(
self,
stacktrace_string,
deps,
job_type, # pylint: disable=W0221
sanitizer,
signature=None,
top_n_frames=None,
crash_address=None):
"""Parse clusterfuzz stacktrace string into Stacktrace instance."""
filters = [
FilterJavaJreSdkFrames(),
KeepV8FramesIfV8GeneratedJITCrash(),
FilterV8FramesForV8APIBindingCode(crash_address),
FilterFramesAfterBlinkGeneratedCode(),
FilterV8FramesIfV8NotInTopFrames(),
KeepTopNFrames(top_n_frames or DEFAULT_TOP_N_FRAMES)
]
stacktrace_buffer = StacktraceBuffer(signature=signature,
filters=filters)
stack_detector = GetCallStackDetector(job_type, sanitizer)
if stack_detector is None:
logging.error(
'Cannot find CallStackDetector for crash %s (job type: %s)',
signature or '', job_type)
return None
# Initial background callstack which is not to be added into Stacktrace.
stack_buffer = CallStackBuffer()
# Reset both stacktrace and callstack flags.
self.flag_manager.ResetAllFlags()
for line in stacktrace_string.splitlines():
# Note, some flags like is_first_stack may be changed inside of stack
# detector.
start_of_callstack = stack_detector(line, flags=self.flag_manager)
if start_of_callstack:
stacktrace_buffer.AddFilteredStack(
self.UpdateMetadataWithFlags(stack_buffer))
# Create new stack and reset callstack scope flags.
stack_buffer = CallStackBuffer.FromStartOfCallStack(
start_of_callstack)
self.flag_manager.ResetGroupFlags(CALLSTACK_FLAG_GROUP)
else:
frame = StackFrame.Parse(stack_buffer.language_type,
stack_buffer.format_type, line, deps,
len(stack_buffer.frames))
if frame is not None:
stack_buffer.frames.append(frame)
# Turn on flags if condition met.
self.flag_manager.ConditionallyTurnOnFlags(line)
# Add the last stack to stacktrace.
stacktrace_buffer.AddFilteredStack(
self.UpdateMetadataWithFlags(stack_buffer))
return stacktrace_buffer.ToStacktrace()
def testParseStackFrameForFracasJavaStack(self):
format_type = CallStackFormatType.DEFAULT
language_type = LanguageType.JAVA
frame = StackFrame.Parse(language_type, format_type,
'#0 0xxx in android.app.func app.java:2450',
{})
self._VerifyTwoStackFramesEqual(
frame,
StackFrame(0, '', 'android.app.func', 'android/app.java',
'android/app.java', [2450]))
def testParseStackFrameForDefaultCallstackFormat(self):
language_type = None
format_type = CallStackFormatType.DEFAULT
self.assertIsNone(
StackFrame.Parse(language_type, format_type, 'dummy line', {}))
deps = {'tp/webrtc/': Dependency('tp/webrtc/', 'https://repo', '1')}
frame = StackFrame.Parse(language_type, format_type,
'#0 0x52617a in func0 tp/webrtc/a.c:38:3',
deps)
self._VerifyTwoStackFramesEqual(
frame,
StackFrame(0, 'tp/webrtc/', 'func0', 'a.c', 'tp/webrtc/a.c',
[38, 39, 40, 41]))
frame = StackFrame.Parse(
language_type, format_type,
'#1 0x526 in func::func2::func3 tp/webrtc/a.c:3:2', deps)
self._VerifyTwoStackFramesEqual(
frame,
StackFrame(1, 'tp/webrtc/', 'func::func2::func3', 'a.c',
'tp/webrtc/a.c', [3, 4, 5]))
