syscall.sh / xtensa / clock_nanosleep_time64

clock_nanosleep_time64

high-resolution sleep with specifiable clock

sys_clock_nanosleep(clockid_t which_clock, int flags, const struct __kernel_timespec *rqtp, struct __kernel_timespec *rmtp)

register	value
`a2`	407, the syscall number
`a6`	clockid_t which_clock
`a3`	int flags
`a4`	const struct __kernel_timespec *rqtp
`a5`	struct __kernel_timespec *rmtp
`a2`	the return value

Then run syscall to enter the kernel.

Same syscall on other architectures