def _analyze_frames(self, hang_type, java_stack_trace,
make_modules_lower_case,
dump_analysis_line_iterator, submitted_timestamp,
crashed_thread,
processor_notes):
""" After the header information, the dump file consists of just frame
information. This function cycles through the frame information
looking for frames associated with the crashed thread (determined in
analyzeHeader). Each frame from that thread is written to the database
until it has found a maximum of ten frames.
returns:
a dictionary will various values to be used to update report
in the database, including:
truncated - boolean: True - due to excessive length the
frames of the crashing thread
may have been truncated.
signature - string: an overall signature calculated for this
crash
processor_notes - string: any errors or warnings that
happened during the processing
input parameters:
hang_type - 0: if this is not a hang
-1: if "HangID" present in json,
but "Hang" was not present
"Hang" value: if "Hang" present - probably 1
java_stack_trace - a source for java lang signature
information
make_modules_lower_case - boolean, should modules be forced to
lower case for signature generation?
dump_analysis_line_iterator - an iterator that cycles through
lines from the crash dump
submitted_timestamp
crashed_thread - the number of the thread that crashed - we
want frames only from the crashed thread
processor_notes
"""
#logger.info("analyzeFrames")
frame_counter = 0
is_truncated = False
frame_lines_were_found = False
signature_generation_frames = []
topmost_sourcefiles = []
if hang_type == 1:
thread_for_signature = 0
else:
thread_for_signature = crashed_thread
max_topmost_sourcefiles = 1 # Bug 519703 calls for just one.
# Lets build in some flex
for line in dump_analysis_line_iterator:
frame_lines_were_found = True
#logger.debug(" %s", line)
line = line.strip()
if line == '':
processor_notes.append("An unexpected blank line in "
"this dump was ignored")
continue # ignore unexpected blank lines
(thread_num, frame_num, module_name, function, source, source_line,
instruction) = [emptyFilter(x) for x in line.split("|")]
if len(topmost_sourcefiles) < max_topmost_sourcefiles and source:
topmost_sourcefiles.append(source)
if thread_for_signature == int(thread_num):
if frame_counter < 30:
if make_modules_lower_case:
try:
module_name = module_name.lower()
except AttributeError:
pass
this_frame_signature = \
self.c_signature_tool.normalize_signature(
module_name,
function,
source,
source_line,
instruction
)
signature_generation_frames.append(this_frame_signature)
if (
frame_counter ==
self.config.crashing_thread_frame_threshold
):
processor_notes.append(
"This dump is too long and has triggered the automatic"
" truncation routine"
)
dump_analysis_line_iterator.useSecondaryCache()
is_truncated = True
frame_counter += 1
elif frame_counter:
break
dump_analysis_line_iterator.stopUsingSecondaryCache()
signature = self._generate_signature(signature_generation_frames,
java_stack_trace,
hang_type,
crashed_thread,
processor_notes)
if not frame_lines_were_found:
message = "No frame data available"
processor_notes.append(message)
self.config.logger.info("%s", message)
return DotDict({
"signature": signature,
"truncated": is_truncated,
"topmost_filenames": topmost_sourcefiles,
})
def _analyze_frames(self, hang_type, java_stack_trace,
make_modules_lower_case, dump_analysis_line_iterator,
submitted_timestamp, crashed_thread, processor_notes):
""" After the header information, the dump file consists of just frame
information. This function cycles through the frame information
looking for frames associated with the crashed thread (determined in
analyzeHeader). Each frame from that thread is written to the database
until it has found a maximum of ten frames.
returns:
a dictionary will various values to be used to update report
in the database, including:
truncated - boolean: True - due to excessive length the
frames of the crashing thread
may have been truncated.
signature - string: an overall signature calculated for this
crash
processor_notes - string: any errors or warnings that
happened during the processing
input parameters:
hang_type - 0: if this is not a hang
-1: if "HangID" present in json,
but "Hang" was not present
"Hang" value: if "Hang" present - probably 1
java_stack_trace - a source for java lang signature
information
make_modules_lower_case - boolean, should modules be forced to
lower case for signature generation?
dump_analysis_line_iterator - an iterator that cycles through
lines from the crash dump
submitted_timestamp
crashed_thread - the number of the thread that crashed - we
want frames only from the crashed thread
processor_notes
"""
#logger.info("analyzeFrames")
frame_counter = 0
is_truncated = False
frame_lines_were_found = False
signature_generation_frames = []
topmost_sourcefiles = []
if hang_type == 1:
thread_for_signature = 0
else:
thread_for_signature = crashed_thread
max_topmost_sourcefiles = 1 # Bug 519703 calls for just one.
# Lets build in some flex
for line in dump_analysis_line_iterator:
frame_lines_were_found = True
#logger.debug(" %s", line)
line = line.strip()
if line == '':
processor_notes.append("An unexpected blank line in "
"this dump was ignored")
continue # ignore unexpected blank lines
(thread_num, frame_num, module_name, function, source, source_line,
instruction) = [emptyFilter(x) for x in line.split("|")]
if len(topmost_sourcefiles) < max_topmost_sourcefiles and source:
topmost_sourcefiles.append(source)
if thread_for_signature == int(thread_num):
if frame_counter < 30:
if make_modules_lower_case:
try:
module_name = module_name.lower()
except AttributeError:
pass
this_frame_signature = \
self.c_signature_tool.normalize_signature(
module_name,
function,
source,
source_line,
instruction
)
signature_generation_frames.append(this_frame_signature)
if (frame_counter ==
self.config.crashing_thread_frame_threshold):
processor_notes.append(
"This dump is too long and has triggered the automatic"
" truncation routine")
dump_analysis_line_iterator.useSecondaryCache()
is_truncated = True
frame_counter += 1
elif frame_counter:
break
dump_analysis_line_iterator.stopUsingSecondaryCache()
signature = self._generate_signature(signature_generation_frames,
java_stack_trace, hang_type,
crashed_thread, processor_notes)
if not frame_lines_were_found:
message = "No frame data available"
processor_notes.append(message)
self.config.logger.info("%s", message)
return DotDict({
"signature": signature,
"truncated": is_truncated,
"topmost_filenames": topmost_sourcefiles,
})
