This option controls the generation of stack probes which are extra instructions generated by the compiler whenever the stack can be extended by more than 2K bytes. This extra code causes a protection exception if there is not enough storage available on the stack.
.-PROBE---. >>-+-NOPROBE-+-------------------------------------------------><
A program that requires considerable automatic storage, but is linked with an insufficient stack size, produces exceptions and might go into an infinite loop unless stack probes are generated. The presence of stack probes decreases performance in non-multithreading programs that are properly linked.