Breakpoint causes unhandled exeception #1409
Description
Setup: ST-Link v2 with an STM32F411CE. Setup works with Mbed Studio (which uses pyOCD). However, trying to use pyOCD without studio -- either the version included or the latest version -- causes a failure when gdb sets a breakpoint. I have tried both the stripped down pack included with Mbed Studio and the full pack. I've tried remote and extended remote. I've try gdb-multiarch and the arm noabi gdb. All the same results.
The exact same setup works fine with OpenOCD so I think wiring etc isn't the issue.
When I try to set a breakpoint I get:
0012712 E Unhandled exception in handle_message (b'm'): result size (6) != requested size (4) [gdbserver]
Traceback (most recent call last):
File "/home/alw/.local/lib/python3.8/site-packages/pyocd/gdbserver/gdbserver.py", line 423, in handle_message
reply = handler(msg[msgStart:])
File "/home/alw/.local/lib/python3.8/site-packages/pyocd/gdbserver/gdbserver.py", line 844, in get_memory
mem = self.target_context.read_memory_block8(addr, length)
File "/home/alw/.local/lib/python3.8/site-packages/pyocd/debug/cache.py", line 42, in read_memory_block8
return self._memcache.read_memory_block8(addr, size)
File "/home/alw/.local/lib/python3.8/site-packages/pyocd/cache/memory.py", line 258, in read_memory_block8
assert len(result) == size, "result size ({}) != requested size ({})".format(len(result), size)
AssertionError: result size (6) != requested size (4)
0012712 E Unexpected exception: a bytes-like object is required, not 'tuple' [gdbserver]
Traceback (most recent call last):
File "/home/alw/.local/lib/python3.8/site-packages/pyocd/gdbserver/gdbserver.py", line 390, in _run_connection
self.packet_io.send(resp)
File "/home/alw/.local/lib/python3.8/site-packages/pyocd/gdbserver/packet_io.py", line 83, in send
self._write_packet(packet)
File "/home/alw/.local/lib/python3.8/site-packages/pyocd/gdbserver/packet_io.py", line 146, in _write_packet
written = self._abstract_socket.write(packet)
File "/home/alw/.local/lib/python3.8/site-packages/pyocd/utility/sockets.py", line 58, in write
return self.conn.send(data)
TypeError: a bytes-like object is required, not 'tuple'
I feel like I must be doing something wrong. I've tried simple invocations and trying to mimic the Mbed Studio invocation. So:
pyocd gdbserver -t stm32f411ce
Along with explicit pack definitions. Also
python3 -mpyocd gdbserver --target STM32F411CE --erase=chip --frequency 1800000 --pack '/home/alw/.config/Mbed Studio/mbed-studio-tools/cmsis-packs/Keil.STM32F4xx_DFP.2.15.0-small.pack' -O connect_mode=under-reset -O enable_swv=1 -O swv_system_clock=96000000 -O swv_raw_port=3443 -O swv_clock=2000000
And many variations (e.g., no swv, etc.).