Free standing rust binary

Cargo.toml

@@ -3,4 +3,10 @@ name = "simpleos"
 version = "0.1.0"
 edition = "2021"
 
+[profile.dev]
+panic = "abort"
+
+[profile.release]
+panic = "abort"
+
 [dependencies]

src/main.rs

@@ -1,3 +1,14 @@
-fn main() {
+#![no_std]
-    println!("Hello, world!");
+#![no_main]
+
+use core::panic::PanicInfo;
+
+#[no_mangle]
+pub extern "C" fn _start() -> ! {
+    loop {}
+}
+
+#[panic_handler]
+fn panic(_info: &PanicInfo) -> ! {
+    loop {}
 }