Robot Operating System Cookbook

How to do it…

1. Attach the gdb debugger with the launch file as follows:

 <launch> 
  <node pkg=""chapter4_tutorials"" type=""program1"" name=""program1"" output=""screen"" 
  launch-prefix=""xterm -e gdb --args""/> 
</launch> 

2. Start the ROS node within gdb debugger using the launch command:

$ roslaunch chapter4_tutorials program1_gdb.launch

3. Create a new xterm terminal with the node attached to gdb, as shown in the following screenshot.

Moreover, we can set breakpoints if needed and then press the c or r key to run the node and debug it. The source code can be listed by using the l command:

ROS node with gdb debugger

4.  Try debugging python in ...