Here is a working prototype for CPython to record all function call/return using LTTng-UST, a fast tracer.
https://github.com/giraldeau/python-profile-ust However, there are few issues and questions: - I was not able to get PyTrace_EXCEPTION using "raise" or other error conditions. How can we trigger this event in Python code (PyTrace_C_EXCEPTION works)? - How could be the best way to get the full name of an object (such as package, module, class and function). Maybe it's too Java-ish, and it is better to record file/lineno instead? - On the C-API side: I did a horrible and silly function show_type() to run every Py*_Check() to determine the type of a PyObject *. What would be the sane way to do that? Your comments are very valuable. Thanks! Francis
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