pub unsafe extern "C" fn rr_record_serial_read(
call_site: RR_callsite_id,
fifo_addr: u64,
port_addr: u32,
value: u8,
)pub unsafe extern "C" fn rr_record_serial_read(
call_site: RR_callsite_id,
fifo_addr: u64,
port_addr: u32,
value: u8,
)