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2.8 Debugging and Profiling

Debugging a program that makes use of Guile-GI bindings has some challenges. A few notable one are these:

• When parsing a typelib file to generate a binding, some C procedures and structures will be bound while others lack sufficient information to be properly bound.
• For a given function call, the type and number of arguments in the Guile binding may differ from the type and number of arguments in the underlying C call.
• For a given function call, the stack will include a mix of Guile-managed frames, libffi-generated frames, and an application’s C stack.

To add some insight about what is happening in the introspection layer, Guile-GI provides some hook functions for the purposes of debugging and makes use of GLib’s debug logging functionality.

• Debugging Hooks
• GLib Logging