Tutorial: LLTFI and the Art of Fault Injection

Fault injection has been a well-researched area in the dependable and reliable systems community. Nevertheless, a simple framework for fault injection that combines both software and hardware errors in an adaptable way, has not previously existed before the debut of LLFI, an LLVM-based fault injector tool. We present a tutorial for LLTFI, an fault injector tool extending LLFI, which is capable of injecting faults into both machine learning and native code applications. Assuming some prior knowledge of fault injection, this tutorial covers the fundamentals, design philosophy, and application of LLTFI.