syscall.sh / arc / timerfd_settime

timerfd_settime

timers that notify via file descriptors

sys_timerfd_settime32(int ufd, int flags, const struct old_itimerspec32 *utmr, struct old_itimerspec32 *otmr)

register	value
`r8`	86, the syscall number
`r0`	int ufd
`r1`	int flags
`r2`	const struct old_itimerspec32 *utmr
`r3`	struct old_itimerspec32 *otmr
`r0`	the return value

Then run trap0 to enter the kernel.

Same syscall on other architectures