silabs-bozont
commented
9 months ago Hello rei-vilo, Excuse me for my late reply, I needed some time to take a deeper dive on this. I can confirm your issue - debugging is broken on Linux for me as well. The good news is that I found the issue and there's a workaround available.
When I tried to launch a debugging session I got the same error that
GDB server session ended. This terminal will be reused, waiting for next session to start...
I tried launching JLinkGDBServer independently of the Arduino IDE - that worked fine, it recognized the connected MCU.
Then I tried connecting to it with a gdb session from the command line when I noticed that arm-none-eabi-gdb is crashing hard. This is what causes the Arduino IDE session to end prematurely.
I suggest you try and launch the supplied arm-none-eabi-gdb on your system and see if it crashes for you as well.
It's located at /home/<user>/.arduino15/packages/SiliconLabs/tools/gcc-arm-none-eabi/12.2.rel1/bin/arm-none-eabi-gdb.
When I launched it first it complained about missing an ncurses shared library. I solved this by installing the ncurses5-compat-libs package.
On the second launch I got further, now I had a python error:
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Python path configuration:
PYTHONHOME = (not set)
PYTHONPATH = (not set)
program name = '/usr/local/bld-tools/bld-tools-virtual-env/bin/python'
isolated = 0
environment = 1
user site = 1
import site = 1
sys._base_executable = '/usr/local/bld-tools/bld-tools-virtual-env/bin/python'
sys.base_prefix = '/usr'
sys.base_exec_prefix = '/usr'
sys.executable = '/usr/local/bld-tools/bld-tools-virtual-env/bin/python'
sys.prefix = '/usr'
sys.exec_prefix = '/usr'
sys.path = [
'/usr/lib/python38.zip',
'/usr/lib/python3.8',
'/usr/lib/lib-dynload',
]
Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
ModuleNotFoundError: No module named 'encodings'
Current thread 0x000073ca44203c00 (most recent call first):
<no Python frame>This seems to be a known issue with GDB hard requiring python3.8 to be in a specific location on Linux: https://www.linuxquestions.org/questions/slackware-14/can%92t-run-arm%92s-gdb-python-problem-4175724434/ https://stackoverflow.com/questions/72187185/arm-none-eabi-gdb-cannot-start-because-of-some-python-error
I managed to work this around by installing python3.8.18 with pyenv and linking it to the location specified by the error message:
pyenv install 3.8.18
sudo mkdir -p /usr/local/bld-tools/bld-tools-virtual-env/bin
sudo ln -s /home/<user>/.pyenv/versions/3.8.18/bin/python python
After this arm-none-eabi-gdb launched without any errors and debugging could be successfully started from the Arduino IDE.
Let me know if this works out for you!
If not - please post the output from running the built-in arm-none-eabi-gdb at /home/<user>/.arduino15/packages/SiliconLabs/tools/gcc-arm-none-eabi/12.2.rel1/bin/arm-none-eabi-gdb and we can dive further!
I know this is not very user friendly having to hack your system like this in order to use debugging - we'll try to figure something out for the next release to make this easier on Linux users.
rei-vilo
I am using the blinky example on the BGM220 Explorer kit. Build and link, upload and run work fine.
When trying to debug according to the procedure,
The
debug_custom.jsonfile containsThe installed JLinkGDBServer version is
on
However, Simplicity Studio debugs fine.
What am I missing? Thank you!