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esp-idf/tools/idf_monitor.py

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52 KiB
Python
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#!/usr/bin/env python
#
# esp-idf serial output monitor tool. Does some helpful things:
# - Looks up hex addresses in ELF file with addr2line
# - Reset ESP32 via serial RTS line (Ctrl-T Ctrl-R)
# - Run flash build target to rebuild and flash entire project (Ctrl-T Ctrl-F)
# - Run app-flash build target to rebuild and flash app only (Ctrl-T Ctrl-A)
# - If gdbstub output is detected, gdb is automatically loaded
# - If core dump output is detected, it is converted to a human-readable report
# by espcoredump.py.
#
# Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Contains elements taken from miniterm "Very simple serial terminal" which
# is part of pySerial. https://github.com/pyserial/pyserial
# (C)2002-2015 Chris Liechti <cliechti@gmx.net>
#
# Originally released under BSD-3-Clause license.
#
from __future__ import division, print_function, unicode_literals
import argparse
import codecs
import datetime
import os
import re
import subprocess
from builtins import bytes, chr, object
try:
import queue
except ImportError:
import Queue as queue
import ctypes
import json
import shlex
import sys
import tempfile
import textwrap
import threading
import time
import types
from distutils.version import StrictVersion
from io import open
import serial
import serial.tools.list_ports
import serial.tools.miniterm as miniterm
try:
import websocket
except ImportError:
# This is needed for IDE integration only.
pass
key_description = miniterm.key_description
# Control-key characters
CTRL_A = '\x01'
CTRL_B = '\x02'
CTRL_F = '\x06'
CTRL_H = '\x08'
CTRL_R = '\x12'
CTRL_T = '\x14'
CTRL_Y = '\x19'
CTRL_P = '\x10'
CTRL_X = '\x18'
CTRL_L = '\x0c'
CTRL_RBRACKET = '\x1d' # Ctrl+]
# Command parsed from console inputs
CMD_STOP = 1
CMD_RESET = 2
CMD_MAKE = 3
CMD_APP_FLASH = 4
CMD_OUTPUT_TOGGLE = 5
CMD_TOGGLE_LOGGING = 6
CMD_ENTER_BOOT = 7
# ANSI terminal codes (if changed, regular expressions in LineMatcher need to be udpated)
ANSI_RED = '\033[1;31m'
ANSI_YELLOW = '\033[0;33m'
ANSI_NORMAL = '\033[0m'
def color_print(message, color, newline='\n'):
""" Print a message to stderr with colored highlighting """
sys.stderr.write('%s%s%s%s' % (color, message, ANSI_NORMAL, newline))
def yellow_print(message, newline='\n'):
color_print(message, ANSI_YELLOW, newline)
def red_print(message, newline='\n'):
color_print(message, ANSI_RED, newline)
__version__ = '1.1'
# Tags for tuples in queues
TAG_KEY = 0
TAG_SERIAL = 1
TAG_SERIAL_FLUSH = 2
TAG_CMD = 3
# regex matches an potential PC value (0x4xxxxxxx)
MATCH_PCADDR = re.compile(r'0x4[0-9a-f]{7}', re.IGNORECASE)
DEFAULT_TOOLCHAIN_PREFIX = 'xtensa-esp32-elf-'
DEFAULT_PRINT_FILTER = ''
# coredump related messages
COREDUMP_UART_START = b'================= CORE DUMP START ================='
COREDUMP_UART_END = b'================= CORE DUMP END ================='
COREDUMP_UART_PROMPT = b'Press Enter to print core dump to UART...'
# coredump states
COREDUMP_IDLE = 0
COREDUMP_READING = 1
COREDUMP_DONE = 2
# coredump decoding options
COREDUMP_DECODE_DISABLE = 'disable'
COREDUMP_DECODE_INFO = 'info'
# panic handler related messages
PANIC_START = r'Core \s*\d+ register dump:'
PANIC_END = b'ELF file SHA256:'
PANIC_STACK_DUMP = b'Stack memory:'
# panic handler decoding states
PANIC_IDLE = 0
PANIC_READING = 1
# panic handler decoding options
PANIC_DECODE_DISABLE = 'disable'
PANIC_DECODE_BACKTRACE = 'backtrace'
class StoppableThread(object):
"""
Provide a Thread-like class which can be 'cancelled' via a subclass-provided
cancellation method.
Can be started and stopped multiple times.
Isn't an instance of type Thread because Python Thread objects can only be run once
"""
def __init__(self):
self._thread = None
@property
def alive(self):
"""
Is 'alive' whenever the internal thread object exists
"""
return self._thread is not None
def start(self):
if self._thread is None:
self._thread = threading.Thread(target=self._run_outer)
self._thread.start()
def _cancel(self):
pass # override to provide cancellation functionality
def run(self):
pass # override for the main thread behaviour
def _run_outer(self):
try:
self.run()
finally:
self._thread = None
def stop(self):
if self._thread is not None:
old_thread = self._thread
self._thread = None
self._cancel()
old_thread.join()
class ConsoleReader(StoppableThread):
""" Read input keys from the console and push them to the queue,
until stopped.
"""
def __init__(self, console, event_queue, cmd_queue, parser, test_mode):
super(ConsoleReader, self).__init__()
self.console = console
self.event_queue = event_queue
self.cmd_queue = cmd_queue
self.parser = parser
self.test_mode = test_mode
def run(self):
self.console.setup()
try:
while self.alive:
try:
if os.name == 'nt':
# Windows kludge: because the console.cancel() method doesn't
# seem to work to unblock getkey() on the Windows implementation.
#
# So we only call getkey() if we know there's a key waiting for us.
import msvcrt
while not msvcrt.kbhit() and self.alive:
time.sleep(0.1)
if not self.alive:
break
elif self.test_mode:
# In testing mode the stdin is connected to PTY but is not used for input anything. For PTY
# the canceling by fcntl.ioctl isn't working and would hang in self.console.getkey().
# Therefore, we avoid calling it.
while self.alive:
time.sleep(0.1)
break
c = self.console.getkey()
except KeyboardInterrupt:
c = '\x03'
if c is not None:
ret = self.parser.parse(c)
if ret is not None:
(tag, cmd) = ret
# stop command should be executed last
if tag == TAG_CMD and cmd != CMD_STOP:
self.cmd_queue.put(ret)
else:
self.event_queue.put(ret)
finally:
self.console.cleanup()
def _cancel(self):
if os.name == 'posix' and not self.test_mode:
# this is the way cancel() is implemented in pyserial 3.3 or newer,
# older pyserial (3.1+) has cancellation implemented via 'select',
# which does not work when console sends an escape sequence response
#
# even older pyserial (<3.1) does not have this method
#
# on Windows there is a different (also hacky) fix, applied above.
#
# note that TIOCSTI is not implemented in WSL / bash-on-Windows.
# TODO: introduce some workaround to make it work there.
#
# Note: This would throw exception in testing mode when the stdin is connected to PTY.
import fcntl
import termios
fcntl.ioctl(self.console.fd, termios.TIOCSTI, b'\0')
class ConsoleParser(object):
def __init__(self, eol='CRLF'):
self.translate_eol = {
'CRLF': lambda c: c.replace('\n', '\r\n'),
'CR': lambda c: c.replace('\n', '\r'),
'LF': lambda c: c.replace('\r', '\n'),
}[eol]
self.menu_key = CTRL_T
self.exit_key = CTRL_RBRACKET
self._pressed_menu_key = False
def parse(self, key):
ret = None
if self._pressed_menu_key:
ret = self._handle_menu_key(key)
elif key == self.menu_key:
self._pressed_menu_key = True
elif key == self.exit_key:
ret = (TAG_CMD, CMD_STOP)
else:
key = self.translate_eol(key)
ret = (TAG_KEY, key)
return ret
def _handle_menu_key(self, c):
ret = None
if c == self.exit_key or c == self.menu_key: # send verbatim
ret = (TAG_KEY, c)
elif c in [CTRL_H, 'h', 'H', '?']:
red_print(self.get_help_text())
elif c == CTRL_R: # Reset device via RTS
ret = (TAG_CMD, CMD_RESET)
elif c == CTRL_F: # Recompile & upload
ret = (TAG_CMD, CMD_MAKE)
elif c in [CTRL_A, 'a', 'A']: # Recompile & upload app only
# "CTRL-A" cannot be captured with the default settings of the Windows command line, therefore, "A" can be used
# instead
ret = (TAG_CMD, CMD_APP_FLASH)
elif c == CTRL_Y: # Toggle output display
ret = (TAG_CMD, CMD_OUTPUT_TOGGLE)
elif c == CTRL_L: # Toggle saving output into file
ret = (TAG_CMD, CMD_TOGGLE_LOGGING)
elif c == CTRL_P:
yellow_print('Pause app (enter bootloader mode), press Ctrl-T Ctrl-R to restart')
# to fast trigger pause without press menu key
ret = (TAG_CMD, CMD_ENTER_BOOT)
elif c in [CTRL_X, 'x', 'X']: # Exiting from within the menu
ret = (TAG_CMD, CMD_STOP)
else:
red_print('--- unknown menu character {} --'.format(key_description(c)))
self._pressed_menu_key = False
return ret
def get_help_text(self):
text = """\
--- idf_monitor ({version}) - ESP-IDF monitor tool
--- based on miniterm from pySerial
---
--- {exit:8} Exit program
--- {menu:8} Menu escape key, followed by:
--- Menu keys:
--- {menu:14} Send the menu character itself to remote
--- {exit:14} Send the exit character itself to remote
--- {reset:14} Reset target board via RTS line
--- {makecmd:14} Build & flash project
--- {appmake:14} Build & flash app only
--- {output:14} Toggle output display
--- {log:14} Toggle saving output into file
--- {pause:14} Reset target into bootloader to pause app via RTS line
--- {menuexit:14} Exit program
""".format(version=__version__,
exit=key_description(self.exit_key),
menu=key_description(self.menu_key),
reset=key_description(CTRL_R),
makecmd=key_description(CTRL_F),
appmake=key_description(CTRL_A) + ' (or A)',
output=key_description(CTRL_Y),
log=key_description(CTRL_L),
pause=key_description(CTRL_P),
menuexit=key_description(CTRL_X) + ' (or X)')
return textwrap.dedent(text)
def get_next_action_text(self):
text = """\
--- Press {} to exit monitor.
--- Press {} to build & flash project.
--- Press {} to build & flash app.
--- Press any other key to resume monitor (resets target).
""".format(key_description(self.exit_key),
key_description(CTRL_F),
key_description(CTRL_A))
return textwrap.dedent(text)
def parse_next_action_key(self, c):
ret = None
if c == self.exit_key:
ret = (TAG_CMD, CMD_STOP)
elif c == CTRL_F: # Recompile & upload
ret = (TAG_CMD, CMD_MAKE)
elif c in [CTRL_A, 'a', 'A']: # Recompile & upload app only
# "CTRL-A" cannot be captured with the default settings of the Windows command line, therefore, "A" can be used
# instead
ret = (TAG_CMD, CMD_APP_FLASH)
return ret
class SerialReader(StoppableThread):
""" Read serial data from the serial port and push to the
event queue, until stopped.
"""
def __init__(self, serial, event_queue):
super(SerialReader, self).__init__()
self.baud = serial.baudrate
self.serial = serial
self.event_queue = event_queue
if not hasattr(self.serial, 'cancel_read'):
# enable timeout for checking alive flag,
# if cancel_read not available
self.serial.timeout = 0.25
def run(self):
if not self.serial.is_open:
self.serial.baudrate = self.baud
self.serial.rts = True # Force an RTS reset on open
self.serial.open()
time.sleep(0.005) # Add a delay to meet the requirements of minimal EN low time (2ms for ESP32-C3)
self.serial.rts = False
self.serial.dtr = self.serial.dtr # usbser.sys workaround
try:
while self.alive:
try:
data = self.serial.read(self.serial.in_waiting or 1)
except (serial.serialutil.SerialException, IOError) as e:
data = b''
# self.serial.open() was successful before, therefore, this is an issue related to
# the disappearance of the device
red_print(e)
yellow_print('Waiting for the device to reconnect', newline='')
self.serial.close()
while self.alive: # so that exiting monitor works while waiting
try:
time.sleep(0.5)
self.serial.open()
break # device connected
except serial.serialutil.SerialException:
yellow_print('.', newline='')
sys.stderr.flush()
yellow_print('') # go to new line
if len(data):
self.event_queue.put((TAG_SERIAL, data), False)
finally:
self.serial.close()
def _cancel(self):
if hasattr(self.serial, 'cancel_read'):
try:
self.serial.cancel_read()
except Exception:
pass
class LineMatcher(object):
"""
Assembles a dictionary of filtering rules based on the --print_filter
argument of idf_monitor. Then later it is used to match lines and
determine whether they should be shown on screen or not.
"""
LEVEL_N = 0
LEVEL_E = 1
LEVEL_W = 2
LEVEL_I = 3
LEVEL_D = 4
LEVEL_V = 5
level = {'N': LEVEL_N, 'E': LEVEL_E, 'W': LEVEL_W, 'I': LEVEL_I, 'D': LEVEL_D,
'V': LEVEL_V, '*': LEVEL_V, '': LEVEL_V}
def __init__(self, print_filter):
self._dict = dict()
self._re = re.compile(r'^(?:\033\[[01];?[0-9]+m?)?([EWIDV]) \([0-9]+\) ([^:]+): ')
items = print_filter.split()
if len(items) == 0:
self._dict['*'] = self.LEVEL_V # default is to print everything
for f in items:
s = f.split(r':')
if len(s) == 1:
# specifying no warning level defaults to verbose level
lev = self.LEVEL_V
elif len(s) == 2:
if len(s[0]) == 0:
raise ValueError('No tag specified in filter ' + f)
try:
lev = self.level[s[1].upper()]
except KeyError:
raise ValueError('Unknown warning level in filter ' + f)
else:
raise ValueError('Missing ":" in filter ' + f)
self._dict[s[0]] = lev
def match(self, line):
try:
m = self._re.search(line)
if m:
lev = self.level[m.group(1)]
if m.group(2) in self._dict:
return self._dict[m.group(2)] >= lev
return self._dict.get('*', self.LEVEL_N) >= lev
except (KeyError, IndexError):
# Regular line written with something else than ESP_LOG*
# or an empty line.
pass
# We need something more than "*.N" for printing.
return self._dict.get('*', self.LEVEL_N) > self.LEVEL_N
class SerialStopException(Exception):
"""
This exception is used for stopping the IDF monitor in testing mode.
"""
pass
class Monitor(object):
"""
Monitor application main class.
This was originally derived from miniterm.Miniterm, but it turned out to be easier to write from scratch for this
purpose.
Main difference is that all event processing happens in the main thread, not the worker threads.
"""
def __init__(self, serial_instance, elf_file, print_filter, make='make', encrypted=False,
toolchain_prefix=DEFAULT_TOOLCHAIN_PREFIX, eol='CRLF',
decode_coredumps=COREDUMP_DECODE_INFO,
decode_panic=PANIC_DECODE_DISABLE,
target=None,
websocket_client=None,
enable_address_decoding=True):
super(Monitor, self).__init__()
self.event_queue = queue.Queue()
self.cmd_queue = queue.Queue()
self.console = miniterm.Console()
self.enable_address_decoding = enable_address_decoding
if os.name == 'nt':
sys.stderr = ANSIColorConverter(sys.stderr, decode_output=True)
self.console.output = ANSIColorConverter(self.console.output)
self.console.byte_output = ANSIColorConverter(self.console.byte_output)
if StrictVersion(serial.VERSION) < StrictVersion('3.3.0'):
# Use Console.getkey implementation from 3.3.0 (to be in sync with the ConsoleReader._cancel patch above)
def getkey_patched(self):
c = self.enc_stdin.read(1)
if c == chr(0x7f):
c = chr(8) # map the BS key (which yields DEL) to backspace
return c
self.console.getkey = types.MethodType(getkey_patched, self.console)
socket_mode = serial_instance.port.startswith('socket://') # testing hook - data from serial can make exit the monitor
self.serial = serial_instance
self.console_parser = ConsoleParser(eol)
self.console_reader = ConsoleReader(self.console, self.event_queue, self.cmd_queue, self.console_parser, socket_mode)
self.serial_reader = SerialReader(self.serial, self.event_queue)
self.elf_file = elf_file
if not os.path.exists(make):
self.make = shlex.split(make) # allow for possibility the "make" arg is a list of arguments (for idf.py)
else:
self.make = make
self.encrypted = encrypted
self.toolchain_prefix = toolchain_prefix
self.websocket_client = websocket_client
self.target = target
# internal state
self._last_line_part = b''
self._gdb_buffer = b''
self._pc_address_buffer = b''
self._line_matcher = LineMatcher(print_filter)
self._invoke_processing_last_line_timer = None
self._force_line_print = False
self._output_enabled = True
self._serial_check_exit = socket_mode
self._log_file = None
self._decode_coredumps = decode_coredumps
self._reading_coredump = COREDUMP_IDLE
self._coredump_buffer = b''
self._decode_panic = decode_panic
self._reading_panic = PANIC_IDLE
self._panic_buffer = b''
def invoke_processing_last_line(self):
self.event_queue.put((TAG_SERIAL_FLUSH, b''), False)
def main_loop(self):
self.console_reader.start()
self.serial_reader.start()
try:
while self.console_reader.alive and self.serial_reader.alive:
try:
item = self.cmd_queue.get_nowait()
except queue.Empty:
try:
item = self.event_queue.get(True, 0.03)
except queue.Empty:
continue
(event_tag, data) = item
if event_tag == TAG_CMD:
self.handle_commands(data)
elif event_tag == TAG_KEY:
try:
self.serial.write(codecs.encode(data))
except serial.SerialException:
pass # this shouldn't happen, but sometimes port has closed in serial thread
except UnicodeEncodeError:
pass # this can happen if a non-ascii character was passed, ignoring
elif event_tag == TAG_SERIAL:
self.handle_serial_input(data)
if self._invoke_processing_last_line_timer is not None:
self._invoke_processing_last_line_timer.cancel()
self._invoke_processing_last_line_timer = threading.Timer(0.1, self.invoke_processing_last_line)
self._invoke_processing_last_line_timer.start()
# If no further data is received in the next short period
# of time then the _invoke_processing_last_line_timer
# generates an event which will result in the finishing of
# the last line. This is fix for handling lines sent
# without EOL.
elif event_tag == TAG_SERIAL_FLUSH:
self.handle_serial_input(data, finalize_line=True)
else:
raise RuntimeError('Bad event data %r' % ((event_tag,data),))
except SerialStopException:
sys.stderr.write(ANSI_NORMAL + 'Stopping condition has been received\n')
finally:
try:
self.console_reader.stop()
self.serial_reader.stop()
self.stop_logging()
# Cancelling _invoke_processing_last_line_timer is not
# important here because receiving empty data doesn't matter.
self._invoke_processing_last_line_timer = None
except Exception:
pass
sys.stderr.write(ANSI_NORMAL + '\n')
def handle_serial_input(self, data, finalize_line=False):
sp = data.split(b'\n')
if self._last_line_part != b'':
# add unprocessed part from previous "data" to the first line
sp[0] = self._last_line_part + sp[0]
self._last_line_part = b''
if sp[-1] != b'':
# last part is not a full line
self._last_line_part = sp.pop()
for line in sp:
if line != b'':
if self._serial_check_exit and line == self.console_parser.exit_key.encode('latin-1'):
raise SerialStopException()
self.check_panic_decode_trigger(line)
self.check_coredump_trigger_before_print(line)
if self._force_line_print or self._line_matcher.match(line.decode(errors='ignore')):
self._print(line + b'\n')
self.handle_possible_pc_address_in_line(line)
self.check_coredump_trigger_after_print(line)
self.check_gdbstub_trigger(line)
self._force_line_print = False
# Now we have the last part (incomplete line) in _last_line_part. By
# default we don't touch it and just wait for the arrival of the rest
# of the line. But after some time when we didn't received it we need
# to make a decision.
if self._last_line_part != b'':
if self._force_line_print or (finalize_line and self._line_matcher.match(self._last_line_part.decode(errors='ignore'))):
self._force_line_print = True
self._print(self._last_line_part)
self.handle_possible_pc_address_in_line(self._last_line_part)
self.check_gdbstub_trigger(self._last_line_part)
# It is possible that the incomplete line cuts in half the PC
# address. A small buffer is kept and will be used the next time
# handle_possible_pc_address_in_line is invoked to avoid this problem.
# MATCH_PCADDR matches 10 character long addresses. Therefore, we
# keep the last 9 characters.
self._pc_address_buffer = self._last_line_part[-9:]
# GDB sequence can be cut in half also. GDB sequence is 7
# characters long, therefore, we save the last 6 characters.
self._gdb_buffer = self._last_line_part[-6:]
self._last_line_part = b''
# else: keeping _last_line_part and it will be processed the next time
# handle_serial_input is invoked
def handle_possible_pc_address_in_line(self, line):
line = self._pc_address_buffer + line
self._pc_address_buffer = b''
if self.enable_address_decoding:
for m in re.finditer(MATCH_PCADDR, line.decode(errors='ignore')):
self.lookup_pc_address(m.group())
def __enter__(self):
""" Use 'with self' to temporarily disable monitoring behaviour """
self.serial_reader.stop()
self.console_reader.stop()
def __exit__(self, *args, **kwargs):
""" Use 'with self' to temporarily disable monitoring behaviour """
self.console_reader.start()
self.serial_reader.start()
def prompt_next_action(self, reason):
self.console.setup() # set up console to trap input characters
try:
red_print('--- {}'.format(reason))
red_print(self.console_parser.get_next_action_text())
k = CTRL_T # ignore CTRL-T here, so people can muscle-memory Ctrl-T Ctrl-F, etc.
while k == CTRL_T:
k = self.console.getkey()
finally:
self.console.cleanup()
ret = self.console_parser.parse_next_action_key(k)
if ret is not None:
cmd = ret[1]
if cmd == CMD_STOP:
# the stop command should be handled last
self.event_queue.put(ret)
else:
self.cmd_queue.put(ret)
def run_make(self, target):
with self:
if isinstance(self.make, list):
popen_args = self.make + [target]
else:
popen_args = [self.make, target]
yellow_print('Running %s...' % ' '.join(popen_args))
p = subprocess.Popen(popen_args, env=os.environ)
try:
p.wait()
except KeyboardInterrupt:
p.wait()
if p.returncode != 0:
self.prompt_next_action('Build failed')
else:
self.output_enable(True)
def lookup_pc_address(self, pc_addr):
cmd = ['%saddr2line' % self.toolchain_prefix,
'-pfiaC', '-e', self.elf_file, pc_addr]
try:
translation = subprocess.check_output(cmd, cwd='.')
if b'?? ??:0' not in translation:
self._print(translation.decode(), console_printer=yellow_print)
except OSError as e:
red_print('%s: %s' % (' '.join(cmd), e))
def check_gdbstub_trigger(self, line):
line = self._gdb_buffer + line
self._gdb_buffer = b''
m = re.search(b'\\$(T..)#(..)', line) # look for a gdb "reason" for a break
if m is not None:
try:
chsum = sum(ord(bytes([p])) for p in m.group(1)) & 0xFF
calc_chsum = int(m.group(2), 16)
except ValueError:
return # payload wasn't valid hex digits
if chsum == calc_chsum:
if self.websocket_client:
yellow_print('Communicating through WebSocket')
self.websocket_client.send({'event': 'gdb_stub',
'port': self.serial.port,
'prog': self.elf_file})
yellow_print('Waiting for debug finished event')
self.websocket_client.wait([('event', 'debug_finished')])
yellow_print('Communications through WebSocket is finished')
else:
self.run_gdb()
else:
red_print('Malformed gdb message... calculated checksum %02x received %02x' % (chsum, calc_chsum))
def check_coredump_trigger_before_print(self, line):
if self._decode_coredumps == COREDUMP_DECODE_DISABLE:
return
if COREDUMP_UART_PROMPT in line:
yellow_print('Initiating core dump!')
self.event_queue.put((TAG_KEY, '\n'))
return
if COREDUMP_UART_START in line:
yellow_print('Core dump started (further output muted)')
self._reading_coredump = COREDUMP_READING
self._coredump_buffer = b''
self._output_enabled = False
return
if COREDUMP_UART_END in line:
self._reading_coredump = COREDUMP_DONE
yellow_print('\nCore dump finished!')
self.process_coredump()
return
if self._reading_coredump == COREDUMP_READING:
kb = 1024
buffer_len_kb = len(self._coredump_buffer) // kb
self._coredump_buffer += line.replace(b'\r', b'') + b'\n'
new_buffer_len_kb = len(self._coredump_buffer) // kb
if new_buffer_len_kb > buffer_len_kb:
yellow_print('Received %3d kB...' % (new_buffer_len_kb), newline='\r')
def check_coredump_trigger_after_print(self, line):
if self._decode_coredumps == COREDUMP_DECODE_DISABLE:
return
# Re-enable output after the last line of core dump has been consumed
if not self._output_enabled and self._reading_coredump == COREDUMP_DONE:
self._reading_coredump = COREDUMP_IDLE
self._output_enabled = True
self._coredump_buffer = b''
def process_coredump(self):
if self._decode_coredumps != COREDUMP_DECODE_INFO:
raise NotImplementedError('process_coredump: %s not implemented' % self._decode_coredumps)
coredump_script = os.path.join(os.path.dirname(__file__), '..', 'components', 'espcoredump', 'espcoredump.py')
coredump_file = None
try:
# On Windows, the temporary file can't be read unless it is closed.
# Set delete=False and delete the file manually later.
with tempfile.NamedTemporaryFile(mode='wb', delete=False) as coredump_file:
coredump_file.write(self._coredump_buffer)
coredump_file.flush()
if self.websocket_client:
self._output_enabled = True
yellow_print('Communicating through WebSocket')
self.websocket_client.send({'event': 'coredump',
'file': coredump_file.name,
'prog': self.elf_file})
yellow_print('Waiting for debug finished event')
self.websocket_client.wait([('event', 'debug_finished')])
yellow_print('Communications through WebSocket is finished')
else:
cmd = [sys.executable,
coredump_script,
'info_corefile',
'--core', coredump_file.name,
'--core-format', 'b64',
self.elf_file
]
output = subprocess.check_output(cmd, stderr=subprocess.STDOUT)
self._output_enabled = True
self._print(output)
self._output_enabled = False # Will be reenabled in check_coredump_trigger_after_print
except subprocess.CalledProcessError as e:
yellow_print('Failed to run espcoredump script: {}\n{}\n\n'.format(e, e.output))
self._output_enabled = True
self._print(COREDUMP_UART_START + b'\n')
self._print(self._coredump_buffer)
# end line will be printed in handle_serial_input
finally:
if coredump_file is not None:
try:
os.unlink(coredump_file.name)
except OSError as e:
yellow_print("Couldn't remote temporary core dump file ({})".format(e))
def check_panic_decode_trigger(self, line):
if self._decode_panic == PANIC_DECODE_DISABLE:
return
if self._reading_panic == PANIC_IDLE and re.search(PANIC_START, line.decode('ascii', errors='ignore')):
self._reading_panic = PANIC_READING
yellow_print('Stack dump detected')
if self._reading_panic == PANIC_READING and PANIC_STACK_DUMP in line:
self._output_enabled = False
if self._reading_panic == PANIC_READING:
self._panic_buffer += line.replace(b'\r', b'') + b'\n'
if self._reading_panic == PANIC_READING and PANIC_END in line:
self._reading_panic = PANIC_IDLE
self._output_enabled = True
self.process_panic_output(self._panic_buffer)
self._panic_buffer = b''
def process_panic_output(self, panic_output):
panic_output_decode_script = os.path.join(os.path.dirname(__file__), '..', 'tools', 'gdb_panic_server.py')
panic_output_file = None
try:
# On Windows, the temporary file can't be read unless it is closed.
# Set delete=False and delete the file manually later.
with tempfile.NamedTemporaryFile(mode='wb', delete=False) as panic_output_file:
panic_output_file.write(panic_output)
panic_output_file.flush()
cmd = [self.toolchain_prefix + 'gdb',
'--batch', '-n',
self.elf_file,
'-ex', "target remote | \"{python}\" \"{script}\" --target {target} \"{output_file}\""
.format(python=sys.executable,
script=panic_output_decode_script,
target=self.target,
output_file=panic_output_file.name),
'-ex', 'bt']
output = subprocess.check_output(cmd, stderr=subprocess.STDOUT)
yellow_print('\nBacktrace:\n\n')
self._print(output)
except subprocess.CalledProcessError as e:
yellow_print('Failed to run gdb_panic_server.py script: {}\n{}\n\n'.format(e, e.output))
self._print(panic_output)
finally:
if panic_output_file is not None:
try:
os.unlink(panic_output_file.name)
except OSError as e:
yellow_print("Couldn't remove temporary panic output file ({})".format(e))
def run_gdb(self):
with self: # disable console control
sys.stderr.write(ANSI_NORMAL)
try:
cmd = ['%sgdb' % self.toolchain_prefix,
'-ex', 'set serial baud %d' % self.serial.baudrate,
'-ex', 'target remote %s' % self.serial.port,
'-ex', 'interrupt', # monitor has already parsed the first 'reason' command, need a second
self.elf_file]
process = subprocess.Popen(cmd, cwd='.')
process.wait()
except OSError as e:
red_print('%s: %s' % (' '.join(cmd), e))
except KeyboardInterrupt:
pass # happens on Windows, maybe other OSes
finally:
try:
# on Linux, maybe other OSes, gdb sometimes seems to be alive even after wait() returns...
process.terminate()
except Exception:
pass
try:
# also on Linux, maybe other OSes, gdb sometimes exits uncleanly and breaks the tty mode
subprocess.call(['stty', 'sane'])
except Exception:
pass # don't care if there's no stty, we tried...
self.prompt_next_action('gdb exited')
def output_enable(self, enable):
self._output_enabled = enable
def output_toggle(self):
self._output_enabled = not self._output_enabled
yellow_print('\nToggle output display: {}, Type Ctrl-T Ctrl-Y to show/disable output again.'.format(self._output_enabled))
def toggle_logging(self):
if self._log_file:
self.stop_logging()
else:
self.start_logging()
def start_logging(self):
if not self._log_file:
try:
name = 'log.{}.{}.txt'.format(os.path.splitext(os.path.basename(self.elf_file))[0],
datetime.datetime.now().strftime('%Y%m%d%H%M%S'))
self._log_file = open(name, 'wb+')
yellow_print('\nLogging is enabled into file {}'.format(name))
except Exception as e:
red_print('\nLog file {} cannot be created: {}'.format(name, e))
def stop_logging(self):
if self._log_file:
try:
name = self._log_file.name
self._log_file.close()
yellow_print('\nLogging is disabled and file {} has been closed'.format(name))
except Exception as e:
red_print('\nLog file cannot be closed: {}'.format(e))
finally:
self._log_file = None
def _print(self, string, console_printer=None):
if console_printer is None:
console_printer = self.console.write_bytes
if self._output_enabled:
console_printer(string)
if self._log_file:
try:
if isinstance(string, type(u'')):
string = string.encode()
self._log_file.write(string)
except Exception as e:
red_print('\nCannot write to file: {}'.format(e))
# don't fill-up the screen with the previous errors (probably consequent prints would fail also)
self.stop_logging()
def handle_commands(self, cmd):
if cmd == CMD_STOP:
self.console_reader.stop()
self.serial_reader.stop()
elif cmd == CMD_RESET:
self.serial.setRTS(True)
self.serial.setDTR(self.serial.dtr) # usbser.sys workaround
time.sleep(0.2)
self.serial.setRTS(False)
self.serial.setDTR(self.serial.dtr) # usbser.sys workaround
self.output_enable(True)
elif cmd == CMD_MAKE:
self.run_make('encrypted-flash' if self.encrypted else 'flash')
elif cmd == CMD_APP_FLASH:
self.run_make('encrypted-app-flash' if self.encrypted else 'app-flash')
elif cmd == CMD_OUTPUT_TOGGLE:
self.output_toggle()
elif cmd == CMD_TOGGLE_LOGGING:
self.toggle_logging()
elif cmd == CMD_ENTER_BOOT:
self.serial.setDTR(False) # IO0=HIGH
self.serial.setRTS(True) # EN=LOW, chip in reset
self.serial.setDTR(self.serial.dtr) # usbser.sys workaround
time.sleep(1.3) # timeouts taken from esptool.py, includes esp32r0 workaround. defaults: 0.1
self.serial.setDTR(True) # IO0=LOW
self.serial.setRTS(False) # EN=HIGH, chip out of reset
self.serial.setDTR(self.serial.dtr) # usbser.sys workaround
time.sleep(0.45) # timeouts taken from esptool.py, includes esp32r0 workaround. defaults: 0.05
self.serial.setDTR(False) # IO0=HIGH, done
else:
raise RuntimeError('Bad command data %d' % (cmd))
def main():
parser = argparse.ArgumentParser('idf_monitor - a serial output monitor for esp-idf')
parser.add_argument(
'--port', '-p',
help='Serial port device',
default=os.environ.get('ESPTOOL_PORT', '/dev/ttyUSB0')
)
parser.add_argument(
'--disable-address-decoding', '-d',
help="Don't print lines about decoded addresses from the application ELF file.",
action='store_true',
default=True if os.environ.get('ESP_MONITOR_DECODE') == 0 else False
)
parser.add_argument(
'--baud', '-b',
help='Serial port baud rate',
type=int,
default=os.getenv('IDF_MONITOR_BAUD', os.getenv('MONITORBAUD', 115200)))
parser.add_argument(
'--make', '-m',
help='Command to run make',
type=str, default='make')
parser.add_argument(
'--encrypted',
help='Use encrypted targets while running make',
action='store_true')
parser.add_argument(
'--toolchain-prefix',
help='Triplet prefix to add before cross-toolchain names',
default=DEFAULT_TOOLCHAIN_PREFIX)
parser.add_argument(
'--eol',
choices=['CR', 'LF', 'CRLF'],
type=lambda c: c.upper(),
help='End of line to use when sending to the serial port',
default='CR')
parser.add_argument(
'elf_file', help='ELF file of application',
type=argparse.FileType('rb'))
parser.add_argument(
'--print_filter',
help='Filtering string',
default=DEFAULT_PRINT_FILTER)
parser.add_argument(
'--decode-coredumps',
choices=[COREDUMP_DECODE_INFO, COREDUMP_DECODE_DISABLE],
default=COREDUMP_DECODE_INFO,
help='Handling of core dumps found in serial output'
)
parser.add_argument(
'--decode-panic',
choices=[PANIC_DECODE_BACKTRACE, PANIC_DECODE_DISABLE],
default=PANIC_DECODE_DISABLE,
help='Handling of panic handler info found in serial output'
)
parser.add_argument(
'--target',
required=False,
help='Target name (used when stack dump decoding is enabled)'
)
parser.add_argument(
'--ws',
default=os.environ.get('ESP_IDF_MONITOR_WS', None),
help='WebSocket URL for communicating with IDE tools for debugging purposes'
)
args = parser.parse_args()
# GDB uses CreateFile to open COM port, which requires the COM name to be r'\\.\COMx' if the COM
# number is larger than 10
if os.name == 'nt' and args.port.startswith('COM'):
args.port = args.port.replace('COM', r'\\.\COM')
yellow_print('--- WARNING: GDB cannot open serial ports accessed as COMx')
yellow_print('--- Using %s instead...' % args.port)
elif args.port.startswith('/dev/tty.') and sys.platform == 'darwin':
args.port = args.port.replace('/dev/tty.', '/dev/cu.')
yellow_print('--- WARNING: Serial ports accessed as /dev/tty.* will hang gdb if launched.')
yellow_print('--- Using %s instead...' % args.port)
serial_instance = serial.serial_for_url(args.port, args.baud,
do_not_open=True)
serial_instance.dtr = False
serial_instance.rts = False
args.elf_file.close() # don't need this as a file
# remove the parallel jobserver arguments from MAKEFLAGS, as any
# parent make is only running 1 job (monitor), so we can re-spawn
# all of the child makes we need (the -j argument remains part of
# MAKEFLAGS)
try:
makeflags = os.environ['MAKEFLAGS']
makeflags = re.sub(r'--jobserver[^ =]*=[0-9,]+ ?', '', makeflags)
os.environ['MAKEFLAGS'] = makeflags
except KeyError:
pass # not running a make jobserver
# Pass the actual used port to callee of idf_monitor (e.g. make) through `ESPPORT` environment
# variable
# To make sure the key as well as the value are str type, by the requirements of subprocess
espport_key = str('ESPPORT')
espport_val = str(args.port)
os.environ.update({espport_key: espport_val})
ws = WebSocketClient(args.ws) if args.ws else None
try:
monitor = Monitor(serial_instance, args.elf_file.name, args.print_filter, args.make, args.encrypted,
args.toolchain_prefix, args.eol,
args.decode_coredumps, args.decode_panic, args.target,
ws, enable_address_decoding=not args.disable_address_decoding)
yellow_print('--- idf_monitor on {p.name} {p.baudrate} ---'.format(
p=serial_instance))
yellow_print('--- Quit: {} | Menu: {} | Help: {} followed by {} ---'.format(
key_description(monitor.console_parser.exit_key),
key_description(monitor.console_parser.menu_key),
key_description(monitor.console_parser.menu_key),
key_description(CTRL_H)))
if args.print_filter != DEFAULT_PRINT_FILTER:
yellow_print('--- Print filter: {} ---'.format(args.print_filter))
monitor.main_loop()
finally:
if ws:
ws.close()
class WebSocketClient(object):
"""
WebSocket client used to advertise debug events to WebSocket server by sending and receiving JSON-serialized
dictionaries.
Advertisement of debug event:
{'event': 'gdb_stub', 'port': '/dev/ttyUSB1', 'prog': 'build/elf_file'} for GDB Stub, or
{'event': 'coredump', 'file': '/tmp/xy', 'prog': 'build/elf_file'} for coredump,
where 'port' is the port for the connected device, 'prog' is the full path to the ELF file and 'file' is the
generated coredump file.
Expected end of external debugging:
{'event': 'debug_finished'}
"""
RETRIES = 3
CONNECTION_RETRY_DELAY = 1
def __init__(self, url):
self.url = url
self._connect()
def _connect(self):
"""
Connect to WebSocket server at url
"""
self.close()
for _ in range(self.RETRIES):
try:
self.ws = websocket.create_connection(self.url)
break # success
except NameError:
raise RuntimeError('Please install the websocket_client package for IDE integration!')
except Exception as e:
red_print('WebSocket connection error: {}'.format(e))
time.sleep(self.CONNECTION_RETRY_DELAY)
else:
raise RuntimeError('Cannot connect to WebSocket server')
def close(self):
try:
self.ws.close()
except AttributeError:
# Not yet connected
pass
except Exception as e:
red_print('WebSocket close error: {}'.format(e))
def send(self, payload_dict):
"""
Serialize payload_dict in JSON format and send it to the server
"""
for _ in range(self.RETRIES):
try:
self.ws.send(json.dumps(payload_dict))
yellow_print('WebSocket sent: {}'.format(payload_dict))
break
except Exception as e:
red_print('WebSocket send error: {}'.format(e))
self._connect()
else:
raise RuntimeError('Cannot send to WebSocket server')
def wait(self, expect_iterable):
"""
Wait until a dictionary in JSON format is received from the server with all (key, value) tuples from
expect_iterable.
"""
for _ in range(self.RETRIES):
try:
r = self.ws.recv()
except Exception as e:
red_print('WebSocket receive error: {}'.format(e))
self._connect()
continue
obj = json.loads(r)
if all([k in obj and obj[k] == v for k, v in expect_iterable]):
yellow_print('WebSocket received: {}'.format(obj))
break
red_print('WebSocket expected: {}, received: {}'.format(dict(expect_iterable), obj))
else:
raise RuntimeError('Cannot receive from WebSocket server')
if os.name == 'nt':
# Windows console stuff
STD_OUTPUT_HANDLE = -11
STD_ERROR_HANDLE = -12
# wincon.h values
FOREGROUND_INTENSITY = 8
FOREGROUND_GREY = 7
# matches the ANSI color change sequences that IDF sends
RE_ANSI_COLOR = re.compile(b'\033\\[([01]);3([0-7])m')
# list mapping the 8 ANSI colors (the indexes) to Windows Console colors
ANSI_TO_WINDOWS_COLOR = [0, 4, 2, 6, 1, 5, 3, 7]
GetStdHandle = ctypes.windll.kernel32.GetStdHandle
SetConsoleTextAttribute = ctypes.windll.kernel32.SetConsoleTextAttribute
class ANSIColorConverter(object):
"""Class to wrap a file-like output stream, intercept ANSI color codes,
and convert them into calls to Windows SetConsoleTextAttribute.
Doesn't support all ANSI terminal code escape sequences, only the sequences IDF uses.
Ironically, in Windows this console output is normally wrapped by winpty which will then detect the console text
color changes and convert these back to ANSI color codes for MSYS' terminal to display. However this is the
least-bad working solution, as winpty doesn't support any "passthrough" mode for raw output.
"""
def __init__(self, output=None, decode_output=False):
self.output = output
self.decode_output = decode_output
self.handle = GetStdHandle(STD_ERROR_HANDLE if self.output == sys.stderr else STD_OUTPUT_HANDLE)
self.matched = b''
def _output_write(self, data):
try:
if self.decode_output:
self.output.write(data.decode())
else:
self.output.write(data)
except (IOError, OSError):
# Windows 10 bug since the Fall Creators Update, sometimes writing to console randomly throws
# an exception (however, the character is still written to the screen)
# Ref https://github.com/espressif/esp-idf/issues/1163
#
# Also possible for Windows to throw an OSError error if the data is invalid for the console
# (garbage bytes, etc)
pass
def write(self, data):
if isinstance(data, bytes):
data = bytearray(data)
else:
data = bytearray(data, 'utf-8')
for b in data:
b = bytes([b])
length = len(self.matched)
if b == b'\033': # ESC
self.matched = b
elif (length == 1 and b == b'[') or (1 < length < 7):
self.matched += b
if self.matched == ANSI_NORMAL.encode('latin-1'): # reset console
# Flush is required only with Python3 - switching color before it is printed would mess up the console
self.flush()
SetConsoleTextAttribute(self.handle, FOREGROUND_GREY)
self.matched = b''
elif len(self.matched) == 7: # could be an ANSI sequence
m = re.match(RE_ANSI_COLOR, self.matched)
if m is not None:
color = ANSI_TO_WINDOWS_COLOR[int(m.group(2))]
if m.group(1) == b'1':
color |= FOREGROUND_INTENSITY
# Flush is required only with Python3 - switching color before it is printed would mess up the console
self.flush()
SetConsoleTextAttribute(self.handle, color)
else:
self._output_write(self.matched) # not an ANSI color code, display verbatim
self.matched = b''
else:
self._output_write(b)
self.matched = b''
def flush(self):
try:
self.output.flush()
except OSError:
# Account for Windows Console refusing to accept garbage bytes (serial noise, etc)
pass
if __name__ == '__main__':
main()
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