rust/examples/mini_core_hello_world.rs
2018-08-14 11:58:39 +02:00

33 lines
715 B
Rust

// Adapted from https://github.com/sunfishcode/mir2cranelift/blob/master/rust-examples/nocore-hello-world.rs
#![feature(no_core, unboxed_closures, start, lang_items)]
#![no_core]
#![no_main]
#![allow(dead_code)]
extern crate mini_core;
use mini_core::*;
#[link(name = "c")]
extern "C" {}
extern "C" {
fn puts(s: *const u8);
}
static mut NUM: u8 = 6 * 7;
static NUM_REF: &'static u8 = unsafe { &NUM };
#[lang = "start"]
fn start(_main: *const u8, i: isize, _: *const *const u8) -> isize {
unsafe {
let (ptr, _): (*const u8, usize) = intrinsics::transmute("Hello!\0");
puts(ptr);
}
unsafe {
NUM = 6 * 7 + 1 + (1u8 == 1u8) as u8; // 44
*NUM_REF as isize
}
}