map_pgsz
page_szc(map_pgsz(MAPPGSZ_HEAP,
p->p_stkpageszc = page_szc(map_pgsz(MAPPGSZ_STK, p, 0, 0, 0));
pgsz = map_pgsz(MAPPGSZ_HEAP, p, bssbase, len, 0);
pgsz = map_pgsz(MAPPGSZ_STK, p, sp, newsize, 0);
share_size = map_pgsz(MAPPGSZ_ISM, pp, addr, size, 0);
extern size_t map_pgsz(int maptype, struct proc *p, caddr_t addr, size_t len,
pgsz = map_pgsz(type, p, 0, 0, 1);