Debugging with VFS - Debugging with VFS - 2026.1 English - UG1701

You can debug a VFS simulation object in two ways:

1. From the Vitis Unified IDE (recommended), use the VFS Application launch configuration to start the VFS script and attach GDB, or to attach GDB to a running VFS process. See VFS Application Launch Configuration .
2. From a standard gdb environment, obtain the VFS process ID and attach gdp manually

• In MATLAB: vfs.getpid()
  Note: All VFS objects in a MATLAB script share the same process ID, which is separate from the MATLAB's own process ID.
• In Python:

  import os
  os.getpid()

  Note: All VFS objects run in the same process as the Python script.

You can use printf for simpler debugging. For MATLAB, any printed output appears in the terminal where the application was launched.