Debugging px4 via Eclipse

How is it possible to attach a debugger in Eclipse?
I am starting

export GAZEBO_PLUGIN_PATH=${GAZEBO_PLUGIN_PATH}:build/px4_sitl_default/build_gazebo
export GAZEBO_MODEL_PATH=${GAZEBO_PLUGIN_PATH}:/home/ros/Firmware/Tools/sitl_gazebo/models
export LD_LIBRARY_PATH=${GAZEBO_PLUGIN_PATH}:/home/ros/Firmware/build/px4_sitl_default/build_gazebo

cd workspace/Firmware
gazebo Tools/sitl_gazebo/worlds/iris.world --verbose

Starting in Eclipse
make px4_sitl_default gazebo no_sim=1
shuts down immediately due to

INFO  [px4] Startup script returned successfully
pxh> �[2K
pxh> Shutting down

This is related to
https://discuss.px4.io/t/eclipse-debugging-sitl/9465