Create kernel map during build

.gitignore

@@ -1,2 +1,3 @@
 obj/
 foxdos
+kernel.map

Makefile

@@ -22,4 +22,4 @@ $(TARGET): src/boot.s $(FILES)
 	cat obj/boot.o obj/kernel.o > $(TARGET)
 
 clean:
-	rm -rf obj/ $(TARGET)
+	rm -rf obj/ $(TARGET) kernel.map

src/kernel.s

@@ -1,5 +1,7 @@
 %include "config.s"
 
+[map symbols kernel.map]
+
 kjmp: ; MUST be a short jump due to loader config
 	jmp kernel_entry
 %include "int21/int21.s"