11.1Smycroftvoid tss_alloc __P((struct pcb *)); 21.1Smycroftvoid tss_free __P((struct pcb *)); 31.1Smycroftvoid ldt_alloc __P((struct pcb *, union descriptor *, size_t)); 41.1Smycroftvoid ldt_free __P((struct pcb *)); 5