// Copyright 2017 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. #![feature(global_asm)] #![feature(naked_functions)] #[cfg(any(target_arch = "x86_64", target_arch = "x86"))] global_asm!(r#" .global foo foo: ret "#); extern { fn foo(); } #[cfg(any(target_arch = "x86_64", target_arch = "x86"))] fn main() { unsafe { foo(); } } #[cfg(not(any(target_arch = "x86_64", target_arch = "x86")))] fn main() {}