Add first user program hello_world.rs

2020-11-18 14:48:13 +08:00 · 2020-11-18 14:48:13 +08:00 · a97d4e82a5
commit a97d4e82a5
parent d2c0be3dd0
79 changed files with 343 additions and 0 deletions
--- a/user/src/bin/hello_world.rs
+++ b/user/src/bin/hello_world.rs
@ -0,0 +1,11 @@
+#![no_std]
+#![no_main]
+
+#[macro_use]
+extern crate user_lib;
+
+#[no_mangle]
+fn main() -> i32 {
+    println!("Hello, world!");
+    0
+}