58 lines
1.2 KiB
Rust
58 lines
1.2 KiB
Rust
// Adapted from https://github.com/sunfishcode/mir2cranelift/blob/master/rust-examples/nocore-hello-world.rs
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#![feature(no_core, unboxed_closures, start, lang_items, box_syntax)]
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#![no_core]
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#![allow(dead_code)]
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extern crate mini_core;
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use mini_core::*;
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#[link(name = "c")]
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extern "C" {}
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extern "C" {
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fn puts(s: *const u8);
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}
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#[lang = "termination"]
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trait Termination {
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fn report(self) -> i32;
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}
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impl Termination for () {
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fn report(self) -> i32 {
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unsafe {
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NUM = 6 * 7 + 1 + (1u8 == 1u8) as u8; // 44
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*NUM_REF as i32
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}
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}
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}
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#[lang = "start"]
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fn start<T: Termination + 'static>(
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main: fn() -> T,
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_argc: isize,
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_argv: *const *const u8,
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) -> isize {
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main().report() as isize
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}
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static mut NUM: u8 = 6 * 7;
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static NUM_REF: &'static u8 = unsafe { &NUM };
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fn main() {
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unsafe {
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let slice: &[u8] = b"Hello\0" as &[u8; 6];
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if intrinsics::size_of_val(slice) as u8 != 0 {
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panic(&("eji", "frjio", 0, 0));
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};
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let ptr: *const u8 = slice as *const [u8] as *const u8;
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let world = box "World!\0";
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puts(ptr);
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puts(*world as *const str as *const u8);
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}
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//panic(&("panic msg", "abc.rs", 0, 43));
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}
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