Rust does allow for safe signal handling, but it's sort of the same way that it allows for safe and correct interrupt handlers for people writing os kernels (si

Rust does allow for safe signal handling, but it's sort of the same way that it allows for safe and correct interrupt handlers for people writing os kernels (signals are basically interrupts, just from kernel->user instead of hardware->kernel). You're basically constrained to no_std and have to be very careful about communications with the rest of the system using lock free mechanisms.