mirror of https://github.com/rust-lang/rust.git
38 lines
725 B
Rust
38 lines
725 B
Rust
#![feature(start, core_intrinsics, lang_items)]
|
|
#![allow(internal_features)]
|
|
#![no_std]
|
|
|
|
#[cfg_attr(unix, link(name = "c"))]
|
|
#[cfg_attr(target_env = "msvc", link(name = "msvcrt"))]
|
|
extern "C" {}
|
|
|
|
#[panic_handler]
|
|
fn panic_handler(_: &core::panic::PanicInfo<'_>) -> ! {
|
|
core::intrinsics::abort();
|
|
}
|
|
|
|
#[lang = "eh_personality"]
|
|
fn eh_personality() {}
|
|
|
|
// Required for rustc_codegen_llvm
|
|
#[no_mangle]
|
|
unsafe extern "C" fn _Unwind_Resume() {
|
|
core::intrinsics::unreachable();
|
|
}
|
|
|
|
#[start]
|
|
fn main(_argc: isize, _argv: *const *const u8) -> isize {
|
|
for i in 2..10_000_000 {
|
|
black_box((i + 1) % i);
|
|
}
|
|
|
|
0
|
|
}
|
|
|
|
#[inline(never)]
|
|
fn black_box(i: u32) {
|
|
if i != 1 {
|
|
core::intrinsics::abort();
|
|
}
|
|
}
|