Create a new IDT

src/interrupts.rs

@@ -1,5 +1,11 @@
-use x86_64::structures::idt::InterruptDescriptorTable;
+use crate::println;
+use x86_64::structures::idt::{ExceptionStackFrame, InterruptDescriptorTable};
 
 pub fn init_idt() {
     let mut idt = InterruptDescriptorTable::new();
+    idt.breakpoint.set_handler_fn(breakpoint_handler);
+}
+
+extern "x86-interrupt" fn breakpoint_handler(stack_frame: &mut ExceptionStackFrame) {
+    println!("EXCEPTION: BREAKPOINT\n{:#?}", stack_frame);
 }

src/lib.rs

@@ -1,4 +1,5 @@
 #![cfg_attr(not(test), no_std)]
+#![feature(abi_x86_interrupt)]
 
 pub mod interrupts;
 pub mod serial;