aconz2

okay this should probably go in a bug report or get reported upstream but that is hard sometimes because it takes a lot of work to report and is sometimes murky who to report to and I feel like a bother when there are 8 million issues already. hoping this ends up in search results

I wanted to flash new marlin firmware 2.1.2.5 to get linear advance on an artillery sidewinder x2. I'm on linux fedora 40. I downloaded vs code with the auto build marlin extension and platformio version 6.1.16.

Build was successful but then hit an error when trying to flash/upload. using lsub I observe the stm32 device vendor id : product id (vid:pid) 0483:5740 and later when in bootloader mode 0483:df11.

Bus 001 Device 017: ID 0483:5740 STMicroelectronics Virtual COM Port <- example when not in bootloader mode

The error from platformio which uses openocd (tool-openocd @ 3.1200.0 (12.0)) was

aconz2

#!/usr/bin/env python

import tarfile
import json
from pathlib import Path
import argparse

types = {}
for k in 'REGTYPE AREGTYPE LNKTYPE SYMTYPE DIRTYPE FIFOTYPE CONTTYPE CHRTYPE BLKTYPE GNUTYPE_SPARSE'.split():
    types[getattr(tarfile, k)] = k

aconz2

/*
 * Do the thing in https://github.com/containers/bubblewrap/issues/592#issuecomment-2243087731
 * unshare --mount
 * mount --rbind / /abc --mkdir
 * cd /abc
 * mount --move . /
 * chroot .
 */

#define _GNU_SOURCE

aconz2

git clone https://github.com/bytecodealliance/wasmtime/
cd wasmtime
git checkout 87817f38a128caa76eaa6a3c3c8ceac81a329a3e

RUST_MIN_STACK=1048576 cargo build # segfaults
coredumpctl -1 dump > core
or 
SYSTEMD_DEBUGGER=lldb coredumpctl -1 debug

RUST_MIN_STACK=1048576 strace --stack-traces -f --trace='open,openat' cargo build 

aconz2

# download fedora cloud qcow2 image
wget https://download.fedoraproject.org/pub/fedora/linux/releases/40/Cloud/x86_64/images/Fedora-Cloud-Base-Generic.x86_64-40-1.14.qcow2

# set root password to hello
virt-customize -a Fedora-Cloud-Base-Generic.x86_64-40-1.14.qcow2 --root-password password:hello

# this extracts the kernel binary and initramfs from the qcow2 image
# this lets you pass custom kernel parameters, qemu requires passing -kernel in order to use -append 
# https://www.kernel.org/doc/html/latest/admin-guide/kernel-parameters.html
virt-get-kernel -a Fedora-Cloud-Base-Generic.x86_64-40-1.14.qcow2

aconz2

# TODO idk what a good base package is
FROM ubuntu:24.04

ARG DEBIAN_FRONTEND=noninteractive
RUN apt-get update && \
    apt-get install -y wget \
                       cryptsetup \
                       libfuse-dev \
                       squashfs-tools \
                       uidmap \

aconz2

import lldb
import os
import sys

symbol_types = {}
for x in dir(lldb):
    if x.startswith('eSymbolType'):
        symbol_types[getattr(lldb, x)] = x[len('eSymbolType'):]

dbg = lldb.SBDebugger.Create()

aconz2

import svgpathtools as svg
from typing import List, Tuple

def points(path: svg.Path):
    for seg in path:
        yield seg.start
    yield path.end

def normalized(x: complex) -> complex:
    return x / abs(x)

aconz2

base_height = 8;
upper_height = 5;
wall_thickness = 0.4;
upper_wall_thickness = 1.2;
filepath = "/path/to/your/shape.svg"; // reccomend using absolute path names

module shape(offset_amt=0) {
    offset(offset_amt)
    import(filepath);
}

aconz2

# on server that has virtual machine, IP is 192.168.1.207
# in virt-manager, add a serial port, it will show up as /dev/pts/something
sudo socat -d -d file:/dev/pts/1 TCP-LISTEN:9090

# on laptop that is plugged into device, -x will log communication as hex
sudo socat -x -d -d /dev/ttyUSB0,b9600,raw TCP:192.168.1.207:9090
# then remote into virtual machine and use the serial port!