# PYTHONPATH=/path/to/LLDB.framework/Resources/Python ./crashlog.py ~/Library/Logs/DiagnosticReports/a.crash
#----------------------------------------------------------------------
+import abc
import concurrent.futures
import contextlib
import datetime
pass
class CrashLogParser:
- def parse(self, debugger, path, verbose):
- try:
- return JSONCrashLogParser(debugger, path, verbose).parse()
- except CrashLogFormatException:
- return TextCrashLogParser(debugger, path, verbose).parse()
-
+ "CrashLog parser base class and factory."
+ def __new__(cls, debugger, path, verbose):
+ data = JSONCrashLogParser.is_valid_json(path)
+ if data:
+ self = object.__new__(JSONCrashLogParser)
+ self.data = data
+ return self
+ else:
+ return object.__new__(TextCrashLogParser)
-class JSONCrashLogParser:
def __init__(self, debugger, path, verbose):
self.path = os.path.expanduser(path)
self.verbose = verbose
self.crashlog = CrashLog(debugger, self.path, self.verbose)
- def parse_json(self, buffer):
- try:
- return json.loads(buffer)
- except:
- # The first line can contain meta data. Try stripping it and try
- # again.
- head, _, tail = buffer.partition('\n')
- return json.loads(tail)
-
+ @abc.abstractmethod
def parse(self):
- with open(self.path, 'r') as f:
- buffer = f.read()
+ pass
+
+class JSONCrashLogParser(CrashLogParser):
+ @staticmethod
+ def is_valid_json(path):
+ def parse_json(buffer):
+ try:
+ return json.loads(buffer)
+ except:
+ # The first line can contain meta data. Try stripping it and
+ # try again.
+ head, _, tail = buffer.partition('\n')
+ return json.loads(tail)
+
+ with open(path, 'r') as f:
+ buffer = f.read()
try:
- self.data = self.parse_json(buffer)
+ return parse_json(buffer)
except:
- raise CrashLogFormatException()
+ return None
+ def parse(self):
try:
self.parse_process_info(self.data)
self.parse_images(self.data['usedImages'])
INSTRS = 5
-class TextCrashLogParser:
+class TextCrashLogParser(CrashLogParser):
parent_process_regex = re.compile('^Parent Process:\s*(.*)\[(\d+)\]')
thread_state_regex = re.compile('^Thread ([0-9]+) crashed with')
thread_instrs_regex = re.compile('^Thread ([0-9]+) instruction stream')
r'(/.*)' # img_path
)
-
def __init__(self, debugger, path, verbose):
- self.path = os.path.expanduser(path)
- self.verbose = verbose
+ super().__init__(debugger, path, verbose)
self.thread = None
self.app_specific_backtrace = False
- self.crashlog = CrashLog(debugger, self.path, self.verbose)
self.parse_mode = CrashLogParseMode.NORMAL
self.parsers = {
CrashLogParseMode.NORMAL : self.parse_normal,
if not os.path.exists(crashlog_path):
raise InteractiveCrashLogException("crashlog file %s does not exist" % crashlog_path)
- crashlog = CrashLogParser().parse(debugger, crashlog_path, False)
+ crashlog = CrashLogParser(debugger, crashlog_path, False).parse()
target = lldb.SBTarget()
# 1. Try to use the user-provided target
except InteractiveCrashLogException as e:
result.SetError(str(e))
else:
- crash_log = CrashLogParser().parse(debugger, crash_log_file, options.verbose)
+ crash_log = CrashLogParser(debugger, crash_log_file, options.verbose).parse()
SymbolicateCrashLog(crash_log, options)
if __name__ == '__main__':