Header             21 user/umalloc.c static Header base;
Header             22 user/umalloc.c static Header *freep;
Header             27 user/umalloc.c   Header *bp, *p;
Header             29 user/umalloc.c   bp = (Header *)ap - 1;
Header             46 user/umalloc.c static Header *
Header             50 user/umalloc.c   Header *hp;
Header             54 user/umalloc.c   p = sbrk(nu * sizeof(Header));
Header             57 user/umalloc.c   hp = (Header *)p;
Header             66 user/umalloc.c   Header *p, *prevp;
Header             69 user/umalloc.c   nunits = (nbytes + sizeof(Header) - 1) / sizeof(Header) + 1;