#![no_main]
#![no_std]
extern crate cortex_m_rt;
extern crate panic_halt;
use cortex_m_rt::{entry, pre_init};
#[pre_init]
unsafe fn foo() {}
#[pre_init] //~ ERROR symbol `__pre_init` is already defined
unsafe fn bar() {}
#[entry]
fn baz() -> ! {
loop {}
}