os-rust/tests/ui/feature-gates/feature-gate-naked_functions.rs

//@ needs-asm-support

use std::arch::naked_asm;
//~^ ERROR use of unstable library feature 'naked_functions'

#[naked]
//~^ the `#[naked]` attribute is an experimental feature
extern "C" fn naked() {
    naked_asm!("")
    //~^ ERROR use of unstable library feature 'naked_functions'
    //~| ERROR: requires unsafe
}

#[naked]
//~^ the `#[naked]` attribute is an experimental feature
extern "C" fn naked_2() -> isize {
    naked_asm!("")
    //~^ ERROR use of unstable library feature 'naked_functions'
    //~| ERROR: requires unsafe
}

fn main() {}