Minimal standalone rust example

test.rs

#![no_std]
extern "rust-intrinsic" { fn abort() -> !; }

#[no_mangle]
 pub extern "C" fn rust_stack_exhausted() {
    unsafe { abort() }
}

#[start]
fn start(_:int, _:**u8)->int{ 0 }

// compile with rustc test.rs -C link-args="-lc"