mirror of
https://github.com/espressif/esp-idf.git
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755 lines
29 KiB
Python
Executable File
755 lines
29 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# esp-idf serial output monitor tool. Does some helpful things:
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# - Looks up hex addresses in ELF file with addr2line
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# - Reset ESP32 via serial RTS line (Ctrl-T Ctrl-R)
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# - Run "make flash" (Ctrl-T Ctrl-F)
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# - Run "make app-flash" (Ctrl-T Ctrl-A)
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# - If gdbstub output is detected, gdb is automatically loaded
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#
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# Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# Contains elements taken from miniterm "Very simple serial terminal" which
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# is part of pySerial. https://github.com/pyserial/pyserial
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# (C)2002-2015 Chris Liechti <cliechti@gmx.net>
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#
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# Originally released under BSD-3-Clause license.
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#
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from __future__ import print_function, division
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import subprocess
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import argparse
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import codecs
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import re
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import os
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try:
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import queue
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except ImportError:
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import Queue as queue
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import time
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import sys
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import serial
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import serial.tools.miniterm as miniterm
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import threading
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import ctypes
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import types
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from distutils.version import StrictVersion
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key_description = miniterm.key_description
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# Control-key characters
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CTRL_A = '\x01'
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CTRL_B = '\x02'
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CTRL_F = '\x06'
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CTRL_H = '\x08'
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CTRL_R = '\x12'
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CTRL_T = '\x14'
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CTRL_Y = '\x19'
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CTRL_P = '\x10'
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CTRL_RBRACKET = '\x1d' # Ctrl+]
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# ANSI terminal codes (if changed, regular expressions in LineMatcher need to be udpated)
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ANSI_RED = '\033[1;31m'
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ANSI_YELLOW = '\033[0;33m'
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ANSI_NORMAL = '\033[0m'
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def color_print(message, color):
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""" Print a message to stderr with colored highlighting """
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sys.stderr.write("%s%s%s\n" % (color, message, ANSI_NORMAL))
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def yellow_print(message):
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color_print(message, ANSI_YELLOW)
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def red_print(message):
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color_print(message, ANSI_RED)
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__version__ = "1.1"
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# Tags for tuples in queues
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TAG_KEY = 0
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TAG_SERIAL = 1
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TAG_SERIAL_FLUSH = 2
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# regex matches an potential PC value (0x4xxxxxxx)
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MATCH_PCADDR = re.compile(r'0x4[0-9a-f]{7}', re.IGNORECASE)
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DEFAULT_TOOLCHAIN_PREFIX = "xtensa-esp32-elf-"
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DEFAULT_PRINT_FILTER = ""
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class StoppableThread(object):
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"""
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Provide a Thread-like class which can be 'cancelled' via a subclass-provided
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cancellation method.
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Can be started and stopped multiple times.
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Isn't an instance of type Thread because Python Thread objects can only be run once
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"""
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def __init__(self):
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self._thread = None
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@property
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def alive(self):
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"""
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Is 'alive' whenever the internal thread object exists
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"""
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return self._thread is not None
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def start(self):
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if self._thread is None:
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self._thread = threading.Thread(target=self._run_outer)
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self._thread.start()
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def _cancel(self):
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pass # override to provide cancellation functionality
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def run(self):
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pass # override for the main thread behaviour
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def _run_outer(self):
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try:
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self.run()
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finally:
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self._thread = None
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def stop(self):
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if self._thread is not None:
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old_thread = self._thread
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self._thread = None
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self._cancel()
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old_thread.join()
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class ConsoleReader(StoppableThread):
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""" Read input keys from the console and push them to the queue,
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until stopped.
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"""
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def __init__(self, console, event_queue, test_mode):
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super(ConsoleReader, self).__init__()
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self.console = console
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self.event_queue = event_queue
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self.test_mode = test_mode
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def run(self):
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self.console.setup()
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try:
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while self.alive:
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try:
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if os.name == 'nt':
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# Windows kludge: because the console.cancel() method doesn't
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# seem to work to unblock getkey() on the Windows implementation.
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#
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# So we only call getkey() if we know there's a key waiting for us.
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import msvcrt
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while not msvcrt.kbhit() and self.alive:
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time.sleep(0.1)
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if not self.alive:
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break
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elif self.test_mode:
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# In testing mode the stdin is connected to PTY but is not used for input anything. For PTY
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# the canceling by fcntl.ioctl isn't working and would hang in self.console.getkey().
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# Therefore, we avoid calling it.
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while self.alive:
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time.sleep(0.1)
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break
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c = self.console.getkey()
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except KeyboardInterrupt:
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c = '\x03'
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if c is not None:
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self.event_queue.put((TAG_KEY, c), False)
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finally:
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self.console.cleanup()
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def _cancel(self):
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if os.name == 'posix' and not self.test_mode:
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# this is the way cancel() is implemented in pyserial 3.3 or newer,
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# older pyserial (3.1+) has cancellation implemented via 'select',
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# which does not work when console sends an escape sequence response
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#
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# even older pyserial (<3.1) does not have this method
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#
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# on Windows there is a different (also hacky) fix, applied above.
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#
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# note that TIOCSTI is not implemented in WSL / bash-on-Windows.
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# TODO: introduce some workaround to make it work there.
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#
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# Note: This would throw exception in testing mode when the stdin is connected to PTY.
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import fcntl, termios
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fcntl.ioctl(self.console.fd, termios.TIOCSTI, b'\0')
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class SerialReader(StoppableThread):
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""" Read serial data from the serial port and push to the
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event queue, until stopped.
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"""
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def __init__(self, serial, event_queue):
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super(SerialReader, self).__init__()
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self.baud = serial.baudrate
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self.serial = serial
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self.event_queue = event_queue
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if not hasattr(self.serial, 'cancel_read'):
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# enable timeout for checking alive flag,
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# if cancel_read not available
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self.serial.timeout = 0.25
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def run(self):
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if not self.serial.is_open:
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self.serial.baudrate = self.baud
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self.serial.rts = True # Force an RTS reset on open
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self.serial.open()
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self.serial.rts = False
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try:
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while self.alive:
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data = self.serial.read(self.serial.in_waiting or 1)
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if len(data):
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self.event_queue.put((TAG_SERIAL, data), False)
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finally:
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self.serial.close()
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def _cancel(self):
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if hasattr(self.serial, 'cancel_read'):
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try:
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self.serial.cancel_read()
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except:
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pass
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class LineMatcher:
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"""
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Assembles a dictionary of filtering rules based on the --print_filter
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argument of idf_monitor. Then later it is used to match lines and
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determine whether they should be shown on screen or not.
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"""
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LEVEL_N = 0
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LEVEL_E = 1
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LEVEL_W = 2
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LEVEL_I = 3
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LEVEL_D = 4
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LEVEL_V = 5
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level = {'N': LEVEL_N, 'E': LEVEL_E, 'W': LEVEL_W, 'I': LEVEL_I, 'D': LEVEL_D,
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'V': LEVEL_V, '*': LEVEL_V, '': LEVEL_V}
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def __init__(self, print_filter):
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self._dict = dict()
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self._re = re.compile(r'^(?:\033\[[01];?[0-9]+m?)?([EWIDV]) \([0-9]+\) ([^:]+): ')
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items = print_filter.split()
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if len(items) == 0:
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self._dict["*"] = self.LEVEL_V # default is to print everything
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for f in items:
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s = f.split(r':')
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if len(s) == 1:
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# specifying no warning level defaults to verbose level
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lev = self.LEVEL_V
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elif len(s) == 2:
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if len(s[0]) == 0:
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raise ValueError('No tag specified in filter ' + f)
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try:
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lev = self.level[s[1].upper()]
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except KeyError:
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raise ValueError('Unknown warning level in filter ' + f)
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else:
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raise ValueError('Missing ":" in filter ' + f)
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self._dict[s[0]] = lev
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def match(self, line):
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try:
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m = self._re.search(line)
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if m:
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lev = self.level[m.group(1)]
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if m.group(2) in self._dict:
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return self._dict[m.group(2)] >= lev
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return self._dict.get("*", self.LEVEL_N) >= lev
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except (KeyError, IndexError):
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# Regular line written with something else than ESP_LOG*
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# or an empty line.
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pass
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# We need something more than "*.N" for printing.
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return self._dict.get("*", self.LEVEL_N) > self.LEVEL_N
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class SerialStopException(Exception):
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"""
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This exception is used for stopping the IDF monitor in testing mode.
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"""
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pass
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class Monitor(object):
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"""
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Monitor application main class.
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This was originally derived from miniterm.Miniterm, but it turned out to be easier to write from scratch for this
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purpose.
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Main difference is that all event processing happens in the main thread, not the worker threads.
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"""
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def __init__(self, serial_instance, elf_file, print_filter, make="make", toolchain_prefix=DEFAULT_TOOLCHAIN_PREFIX, eol="CRLF"):
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super(Monitor, self).__init__()
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self.event_queue = queue.Queue()
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self.console = miniterm.Console()
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if os.name == 'nt':
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sys.stderr = ANSIColorConverter(sys.stderr)
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self.console.output = ANSIColorConverter(self.console.output)
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self.console.byte_output = ANSIColorConverter(self.console.byte_output)
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if StrictVersion(serial.VERSION) < StrictVersion('3.3.0'):
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# Use Console.getkey implementation from 3.3.0 (to be in sync with the ConsoleReader._cancel patch above)
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def getkey_patched(self):
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c = self.enc_stdin.read(1)
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if c == unichr(0x7f):
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c = unichr(8) # map the BS key (which yields DEL) to backspace
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return c
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self.console.getkey = types.MethodType(getkey_patched, self.console)
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socket_mode = serial_instance.port.startswith("socket://") # testing hook - data from serial can make exit the monitor
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self.serial = serial_instance
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self.console_reader = ConsoleReader(self.console, self.event_queue, socket_mode)
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self.serial_reader = SerialReader(self.serial, self.event_queue)
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self.elf_file = elf_file
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self.make = make
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self.toolchain_prefix = toolchain_prefix
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self.menu_key = CTRL_T
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self.exit_key = CTRL_RBRACKET
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self.translate_eol = {
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"CRLF": lambda c: c.replace(b"\n", b"\r\n"),
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"CR": lambda c: c.replace(b"\n", b"\r"),
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"LF": lambda c: c.replace(b"\r", b"\n"),
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}[eol]
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# internal state
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self._pressed_menu_key = False
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self._last_line_part = b""
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self._gdb_buffer = b""
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self._pc_address_buffer = b""
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self._line_matcher = LineMatcher(print_filter)
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self._invoke_processing_last_line_timer = None
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self._force_line_print = False
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self._output_enabled = True
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self._serial_check_exit = socket_mode
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def invoke_processing_last_line(self):
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self.event_queue.put((TAG_SERIAL_FLUSH, b''), False)
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def main_loop(self):
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self.console_reader.start()
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self.serial_reader.start()
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try:
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while self.console_reader.alive and self.serial_reader.alive:
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(event_tag, data) = self.event_queue.get()
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if event_tag == TAG_KEY:
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self.handle_key(data)
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elif event_tag == TAG_SERIAL:
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self.handle_serial_input(data)
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if self._invoke_processing_last_line_timer is not None:
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self._invoke_processing_last_line_timer.cancel()
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self._invoke_processing_last_line_timer = threading.Timer(0.1, self.invoke_processing_last_line)
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self._invoke_processing_last_line_timer.start()
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# If no futher data is received in the next short period
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# of time then the _invoke_processing_last_line_timer
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# generates an event which will result in the finishing of
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# the last line. This is fix for handling lines sent
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# without EOL.
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elif event_tag == TAG_SERIAL_FLUSH:
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self.handle_serial_input(data, finalize_line=True)
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else:
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raise RuntimeError("Bad event data %r" % ((event_tag,data),))
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except SerialStopException:
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pass
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finally:
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try:
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self.console_reader.stop()
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self.serial_reader.stop()
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# Cancelling _invoke_processing_last_line_timer is not
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# important here because receiving empty data doesn't matter.
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self._invoke_processing_last_line_timer = None
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except:
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pass
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sys.stderr.write(ANSI_NORMAL + "\n")
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def handle_key(self, key):
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if self._pressed_menu_key:
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self.handle_menu_key(key)
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self._pressed_menu_key = False
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elif key == self.menu_key:
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self._pressed_menu_key = True
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elif key == self.exit_key:
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self.console_reader.stop()
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self.serial_reader.stop()
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else:
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try:
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key = self.translate_eol(key)
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self.serial.write(codecs.encode(key))
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except serial.SerialException:
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pass # this shouldn't happen, but sometimes port has closed in serial thread
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except UnicodeEncodeError:
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pass # this can happen if a non-ascii character was passed, ignoring
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def handle_serial_input(self, data, finalize_line=False):
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sp = data.split(b'\n')
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if self._last_line_part != b"":
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# add unprocessed part from previous "data" to the first line
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sp[0] = self._last_line_part + sp[0]
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self._last_line_part = b""
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if sp[-1] != b"":
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# last part is not a full line
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self._last_line_part = sp.pop()
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for line in sp:
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if line != b"":
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if self._serial_check_exit and line == self.exit_key:
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raise SerialStopException()
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if self._output_enabled and (self._force_line_print or self._line_matcher.match(line)):
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self.console.write_bytes(line + b'\n')
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self.handle_possible_pc_address_in_line(line)
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self.check_gdbstub_trigger(line)
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self._force_line_print = False
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# Now we have the last part (incomplete line) in _last_line_part. By
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# default we don't touch it and just wait for the arrival of the rest
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# of the line. But after some time when we didn't received it we need
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# to make a decision.
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if self._last_line_part != b"":
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if self._force_line_print or (finalize_line and self._line_matcher.match(self._last_line_part)):
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self._force_line_print = True;
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if self._output_enabled:
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self.console.write_bytes(self._last_line_part)
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self.handle_possible_pc_address_in_line(self._last_line_part)
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self.check_gdbstub_trigger(self._last_line_part)
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# It is possible that the incomplete line cuts in half the PC
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# address. A small buffer is kept and will be used the next time
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# handle_possible_pc_address_in_line is invoked to avoid this problem.
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# MATCH_PCADDR matches 10 character long addresses. Therefore, we
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# keep the last 9 characters.
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self._pc_address_buffer = self._last_line_part[-9:]
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# GDB sequence can be cut in half also. GDB sequence is 7
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# characters long, therefore, we save the last 6 characters.
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self._gdb_buffer = self._last_line_part[-6:]
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self._last_line_part = b""
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# else: keeping _last_line_part and it will be processed the next time
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# handle_serial_input is invoked
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def handle_possible_pc_address_in_line(self, line):
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line = self._pc_address_buffer + line
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self._pc_address_buffer = b""
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for m in re.finditer(MATCH_PCADDR, line):
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self.lookup_pc_address(m.group())
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def handle_menu_key(self, c):
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if c == self.exit_key or c == self.menu_key: # send verbatim
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self.serial.write(codecs.encode(c))
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elif c in [ CTRL_H, 'h', 'H', '?' ]:
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red_print(self.get_help_text())
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elif c == CTRL_R: # Reset device via RTS
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self.serial.setRTS(True)
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time.sleep(0.2)
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self.serial.setRTS(False)
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self.output_enable(True)
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elif c == CTRL_F: # Recompile & upload
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self.run_make("flash")
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elif c == CTRL_A: # Recompile & upload app only
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self.run_make("app-flash")
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elif c == CTRL_Y: # Toggle output display
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self.output_toggle()
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elif c == CTRL_P:
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yellow_print("Pause app (enter bootloader mode), press Ctrl-T Ctrl-R to restart")
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# to fast trigger pause without press menu key
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self.serial.setDTR(False) # IO0=HIGH
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self.serial.setRTS(True) # EN=LOW, chip in reset
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time.sleep(1.3) # timeouts taken from esptool.py, includes esp32r0 workaround. defaults: 0.1
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self.serial.setDTR(True) # IO0=LOW
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self.serial.setRTS(False) # EN=HIGH, chip out of reset
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time.sleep(0.45) # timeouts taken from esptool.py, includes esp32r0 workaround. defaults: 0.05
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self.serial.setDTR(False) # IO0=HIGH, done
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else:
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red_print('--- unknown menu character {} --'.format(key_description(c)))
|
|
|
|
def get_help_text(self):
|
|
return """
|
|
--- 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:7} Send the menu character itself to remote
|
|
--- {exit:7} Send the exit character itself to remote
|
|
--- {reset:7} Reset target board via RTS line
|
|
--- {make:7} Run 'make flash' to build & flash
|
|
--- {appmake:7} Run 'make app-flash to build & flash app
|
|
--- {output:7} Toggle output display
|
|
--- {pause:7} Reset target into bootloader to pause app via RTS line
|
|
""".format(version=__version__,
|
|
exit=key_description(self.exit_key),
|
|
menu=key_description(self.menu_key),
|
|
reset=key_description(CTRL_R),
|
|
make=key_description(CTRL_F),
|
|
appmake=key_description(CTRL_A),
|
|
output=key_description(CTRL_Y),
|
|
pause=key_description(CTRL_P),
|
|
)
|
|
|
|
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("""
|
|
--- {}
|
|
--- Press {} to exit monitor.
|
|
--- Press {} to run 'make flash'.
|
|
--- Press {} to run 'make app-flash'.
|
|
--- Press any other key to resume monitor (resets target).""".format(reason,
|
|
key_description(self.exit_key),
|
|
key_description(CTRL_F),
|
|
key_description(CTRL_A)))
|
|
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()
|
|
if k == self.exit_key:
|
|
self.event_queue.put((TAG_KEY, k))
|
|
elif k in [ CTRL_F, CTRL_A ]:
|
|
self.event_queue.put((TAG_KEY, self.menu_key))
|
|
self.event_queue.put((TAG_KEY, k))
|
|
|
|
def run_make(self, target):
|
|
with self:
|
|
yellow_print("Running make %s..." % target)
|
|
p = subprocess.Popen([self.make,
|
|
target ])
|
|
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):
|
|
translation = subprocess.check_output(
|
|
["%saddr2line" % self.toolchain_prefix,
|
|
"-pfiaC", "-e", self.elf_file, pc_addr],
|
|
cwd=".")
|
|
if not "?? ??:0" in translation:
|
|
yellow_print(translation)
|
|
|
|
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(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:
|
|
self.run_gdb()
|
|
else:
|
|
red_print("Malformed gdb message... calculated checksum %02x received %02x" % (chsum, calc_chsum))
|
|
|
|
|
|
def run_gdb(self):
|
|
with self: # disable console control
|
|
sys.stderr.write(ANSI_NORMAL)
|
|
try:
|
|
process = subprocess.Popen(["%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], cwd=".")
|
|
process.wait()
|
|
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:
|
|
pass
|
|
try:
|
|
# also on Linux, maybe other OSes, gdb sometimes exits uncleanly and breaks the tty mode
|
|
subprocess.call(["stty", "sane"])
|
|
except:
|
|
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 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(
|
|
'--baud', '-b',
|
|
help='Serial port baud rate',
|
|
type=int,
|
|
default=os.environ.get('MONITOR_BAUD', 115200))
|
|
|
|
parser.add_argument(
|
|
'--make', '-m',
|
|
help='Command to run make',
|
|
type=str, default='make')
|
|
|
|
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)
|
|
|
|
args = parser.parse_args()
|
|
|
|
if args.port.startswith("/dev/tty."):
|
|
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
|
|
|
|
monitor = Monitor(serial_instance, args.elf_file.name, args.print_filter, args.make, args.toolchain_prefix, args.eol)
|
|
|
|
yellow_print('--- idf_monitor on {p.name} {p.baudrate} ---'.format(
|
|
p=serial_instance))
|
|
yellow_print('--- Quit: {} | Menu: {} | Help: {} followed by {} ---'.format(
|
|
key_description(monitor.exit_key),
|
|
key_description(monitor.menu_key),
|
|
key_description(monitor.menu_key),
|
|
key_description(CTRL_H)))
|
|
if args.print_filter != DEFAULT_PRINT_FILTER:
|
|
yellow_print('--- Print filter: {} ---'.format(args.print_filter))
|
|
|
|
monitor.main_loop()
|
|
|
|
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):
|
|
self.output = 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:
|
|
self.output.write(data)
|
|
except IOError:
|
|
# 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/1136
|
|
pass
|
|
|
|
def write(self, data):
|
|
for b in data:
|
|
l = len(self.matched)
|
|
if b == '\033': # ESC
|
|
self.matched = b
|
|
elif (l == 1 and b == '[') or (1 < l < 7):
|
|
self.matched += b
|
|
if self.matched == ANSI_NORMAL: # reset console
|
|
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
|
|
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):
|
|
self.output.flush()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|