Changed jump label in gdt_load

arch/x86_64/gdt_load.S

@@ -3,6 +3,10 @@
 .global gdt_load
 .type gdt_load, @function
 
+# gdt_load(struct gdt_ptr *gdtp)
+# Loads GDTR with the specified GDT pointer.
+# Expects entries 1 and 2 (offsets 0x08 and 0x10) to be kernel
+# code and kernel data respectively.
 gdt_load:
 	pushq %rbp
 	movq %rsp, %rbp
@@ -16,13 +20,13 @@ gdt_load:
 	mov %ax, %fs
 	mov %ax, %gs
 
-	movabsq $(gdt_load2), %rax
+	movabsq $(1f), %rax
 
 	push $0x08
 	push %rax
 
 	lretq
 
-gdt_load2:
+1:
 	popq %rbp
 	ret