Attach to process

Press Ctrl+Alt+F5 or choose Run | Attach to Process from the main menu.

CLion will show the list of the running local processes. Select the process to attach to.

tip

If there are processes running in WSL, CLion will detect them as well and suggest to attach to them with the WSL GDB debugger (if you have at least one WSL toolchain configured in your project):

If necessary, narrow down the list of processes by typing the first letters of its name or PID. If there are several debuggers that can be used for the selected process, you can choose among them in the popup menu:

tip

By default, you will not be able to attach the debugger to a process launched with sudo privileges. As a workaround, try running CLion under the same privileged user.

Proceed with debugging the same way as you usually do it in CLion (set breakpoints, step through, pause and resume the process, evaluate expressions, and so on) :

Note that in case the process you have attached to does not provide debug information, breakpoints will be unavailable and stepping will be performed in the disassembly view.