The current ftrace implementation in OP-TEE suffers from two major shortcomings that make it impractical for…
The current ftrace implementation in OP-TEE suffers from two major shortcomings that make it impractical for…: a task in LegoFlow-SWE (Harbor dataset). An attempt to collect a function graph trace from a Trusted Application (TA) with a moderate number of functions quickly hits these limitations…
The task
An attempt to collect a function graph trace from a Trusted Application (TA) with a moderate number of functions quickly hits these limitations. The overhead is so high that timing‑sensitive code paths are altered, and the “shift” buffer policy often causes a watchdog reset or hangs the system.
Part of Lego-X/LegoFlow-SWE.