rust/tests/ui/cmse-nonsecure/cmse-nonsecure-call/gate_test.rs

// gate-test-abi_cmse_nonsecure_call
fn main() {
    let non_secure_function = unsafe {
        core::mem::transmute::<usize, extern "cmse-nonsecure-call" fn(i32, i32, i32, i32) -> i32>(
            //~^ ERROR: is not a supported ABI for the current target [E0570]
            //~| ERROR: ABI is experimental and subject to change [E0658]
            0x10000004,
        )
    };
    let mut toto = 5;
    toto += non_secure_function(toto, 2, 3, 5);
}