If self.elf_exists is false, self.gdb_helper is None, which caused this
code to crash. It looks like this guard was missed in e30329ffe2.
Previously the code could crash like this:
Traceback (most recent call last):
File "/usr/local/src/esp-idf/tools/idf_monitor.py", line 376, in <module>
main()
File "/usr/local/src/esp-idf/tools/idf_monitor.py", line 367, in main
monitor.main_loop()
File "/usr/local/src/esp-idf/tools/idf_monitor.py", line 163, in main_loop
self._main_loop()
File "/usr/local/src/esp-idf/tools/idf_monitor.py", line 268, in _main_loop
super()._main_loop()
File "/usr/local/src/esp-idf/tools/idf_monitor.py", line 203, in _main_loop
self.serial_handler.handle_commands(data, self.target, self.run_make, self.console_reader,
File "/usr/local/src/esp-idf/tools/idf_monitor_base/serial_handler.py", line 203, in handle_commands
run_make_func('encrypted-flash' if self.encrypted else 'flash')
File "/usr/local/src/esp-idf/tools/idf_monitor.py", line 150, in run_make
run_make(target, self.make, self.console, self.console_parser, self.event_queue, self.cmd_queue,
File "/usr/local/src/esp-idf/tools/idf_monitor.py", line 237, in __exit__
self.serial_reader.gdb_exit = self.gdb_helper.gdb_exit # write gdb_exit flag
AttributeError: 'NoneType' object has no attribute 'gdb_exit'
9961061811