-#ifndef HEADER_SWITCH_H
-#define HEADER_SWITCH_H 1
+#ifndef THREADS_SWITCH_H
+#define THREADS_SWITCH_H
#ifndef __ASSEMBLER__
/* switch_thread()'s stack frame. */
#define SWITCH_CUR 20
#define SWITCH_NEXT 24
-#endif /* switch.h */
+#endif /* threads/switch.h */