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Fixed running on Windows. Added ESP32 backtrace parsing. by me21 · Pull Request #5 · janLo/EspArduinoExceptionDecoder · GitHub

/ EspArduinoExceptionDecoder Public

Fixed running on Windows. Added ESP32 backtrace parsing. #5

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Fixed running on Windows. Added ESP32 backtrace parsing. #5

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28 changes: 20 additions & 8 deletions decoder.py
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Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,7 @@
"ESP32": "esp32"
}

BACKTRACE_REGEX = re.compile(r"(?:\s+(0x40[0-2](?:\d|[a-f]|[A-F]){5}):0x(?:\d|[a-f]|[A-F]){8})\b")
EXCEPTION_REGEX = re.compile("^Exception \\((?P<exc>[0-9]*)\\):$")
COUNTER_REGEX = re.compile('^epc1=(?P<epc1>0x[0-9a-f]+) epc2=(?P<epc2>0x[0-9a-f]+) epc3=(?P<epc3>0x[0-9a-f]+) '
'excvaddr=(?P<excvaddr>0x[0-9a-f]+) depc=(?P<depc>0x[0-9a-f]+)$')
Expand Down Expand Up @@ -85,6 +86,12 @@ def __init__(self):

self.stack = []

def _parse_backtrace(self, line):
if line.startswith('Backtrace:'):
self.stack = [StackLine(offset=0, content=(addr,)) for addr in BACKTRACE_REGEX.findall(line)]
return None
return self._parse_backtrace

def _parse_exception(self, line):
match = EXCEPTION_REGEX.match(line)
if match is not None:
Expand Down Expand Up @@ -134,10 +141,13 @@ def _parse_stack_line(self, line):
return self._parse_stack_line
return None

def parse_file(self, file, stack_only=False):
func = self._parse_exception
if stack_only:
func = self._parse_stack_begin
def parse_file(self, file, platform, stack_only=False):
if platform == 'ESP32':
func = self._parse_backtrace
else:
func = self._parse_exception
if stack_only:
func = self._parse_stack_begin

for line in file:
func = func(line.strip())
Expand Down Expand Up @@ -237,8 +247,8 @@ def print_stack(lines, resolver):
print(out)


def print_result(parser, resolver, full=True, stack_only=False):
if not stack_only:
def print_result(parser, resolver, platform, full=True, stack_only=False):
if platform == 'ESP8266' and not stack_only:
print('Exception: {} ({})'.format(parser.exception, EXCEPTIONS[parser.exception]))

print("")
Expand Down Expand Up @@ -291,6 +301,8 @@ def parse_args():

addr2line = os.path.join(os.path.abspath(os.path.expanduser(args.tool)),
"bin/xtensa-" + PLATFORMS[args.platform] + "-elf-addr2line")
if os.name == 'nt':
addr2line += '.exe'
if not os.path.exists(addr2line):
print("ERROR: addr2line not found (" + addr2line + ")")

Expand All @@ -301,7 +313,7 @@ def parse_args():
parser = ExceptionDataParser()
resolver = AddressResolver(addr2line, elf_file)

parser.parse_file(file, args.stack_only)
parser.parse_file(file, args.platform, args.stack_only)
resolver.fill(parser)

print_result(parser, resolver, args.full, args.stack_only)
print_result(parser, resolver, args.platform, args.full, args.stack_only)
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