Create a interrupts::gdt submodule

src/interrupts/gdt.rs

@@ -0,0 +1,13 @@
+pub struct Gdt {
+    table: [u64; 8],
+    next_free: usize,
+}
+
+impl Gdt {
+    pub fn new() -> Gdt {
+        Gdt {
+            table: [0; 8],
+            next_free: 1,
+        }
+    }
+}

src/interrupts/mod.rs

@@ -3,6 +3,8 @@ use x86_64::structures::idt::{Idt, ExceptionStackFrame};
 use x86_64::structures::tss::TaskStateSegment;
 use memory::MemoryController;
 
+mod gdt;
+
 lazy_static! {
     static ref IDT: Idt = {
         let mut idt = Idt::new();