recvmmsg_time64

receive multiple messages on a socket

sys_recvmmsg(int fd, struct mmsghdr *mmsg, unsigned int vlen, unsigned int flags, struct __kernel_timespec *timeout)

register	value
`r20`	417, the syscall number
`r26`	int fd
`r25`	struct mmsghdr *mmsg
`r24`	unsigned int vlen
`r23`	unsigned int flags
`r22`	struct __kernel_timespec *timeout
`r28`	the return value

Then run ble 0x100(%sr2, %r0) to enter the kernel.

Same syscall on other architectures