FreeBSD/sys/arm64/arm64/trap.c
/*
 * The attempted execution of an instruction bit pattern that has no allocated
 * instruction results in an exception with an unknown reason.
 */
The attempted execution of an instruction bit pattern that has no allocated
instruction results in an exception with an unknown reason.
The attempted execution of an instruction bit pattern that has no allocated instruction results in an exception with an unknown reason .
static void
el0_excp_unknown(struct trapframe *frame, uint64_t far)
{
	struct thread *td;
	td = curthread;
	call_trapsignal(td, SIGILL, ILL_ILLTRP, (void *)far);
	userret(td, frame);
}
static void el0_excp_unknown ( struct trapframe * frame , uint64_t far ) { struct thread * td ; td = curthread ; call_trapsignal ( td , SIGILL , ILL_ILLTRP , ( void * ) far ) ; userret ( td , frame ) ; }
The attempted execution of an instruction bit pattern that has no allocated
 instruction results in an exception with an unknown reason.
The attempted execution of an instruction bit pattern that has no allocated instruction results in an exception with an unknown reason .