Static jlink_rtt::_SEGGER_RTT

#[no_mangle]
pub static mut _SEGGER_RTT: ControlBlock = ControlBlock{id: [0u8; 16],
             max_up_buffers: 1,
             max_down_buffers: 1,
             up:
                 Buffer{name: 0 as *const u8,
                        buf_start: 0 as *mut u8,
                        read_offset: 0,
                        write_offset: 0,
                        flags: 0,
                        size_of_buffer: 0,},
             down:
                 Buffer{name: 0 as *const u8,
                        buf_start: 0 as *mut u8,
                        write_offset: 0,
                        read_offset: 0,
                        flags: 0,
                        size_of_buffer: 0,},}