u-boot/common/dlmalloc.src

1517 #define is_small_request(nb) (nb < MAX_SMALLBIN_SIZE - SMALLBIN_WIDTH)
1928 static void malloc_extend_top(INTERNAL_SIZE_T nb)
1930 static void malloc_extend_top(nb) INTERNAL_SIZE_T nb;
1945   INTERNAL_SIZE_T    sbrk_size     = nb + top_pad + MINSIZE;
2045     The requested size is first converted into a usable form, `nb'.
2120   INTERNAL_SIZE_T nb;
2124   nb = request2size(bytes);  /* padded request size; */
2128   if (is_small_request(nb))  /* Faster version for small requests */
2130     idx = smallbin_index(nb);
2148       check_malloced_chunk(victim, nb);
2157     idx = bin_index(nb);
2163       remainder_size = victim_size - nb;
2175 	check_malloced_chunk(victim, nb);
2189     remainder_size = victim_size - nb;
2193       remainder = chunk_at_offset(victim, nb);
2194       set_head(victim, nb | PREV_INUSE);
2198       check_malloced_chunk(victim, nb);
2207       check_malloced_chunk(victim, nb);
2252 	  remainder_size = victim_size - nb;
2256 	    remainder = chunk_at_offset(victim, nb);
2257 	    set_head(victim, nb | PREV_INUSE);
2262 	    check_malloced_chunk(victim, nb);
2270 	    check_malloced_chunk(victim, nb);
2312   if ( (remainder_size = chunksize(top) - nb) < (long)MINSIZE)
2317     if ((unsigned long)nb >= (unsigned long)mmap_threshold &&
2318 	(victim = mmap_chunk(nb)) != 0)
2323     malloc_extend_top(nb);
2324     if ( (remainder_size = chunksize(top) - nb) < (long)MINSIZE)
2329   set_head(victim, nb | PREV_INUSE);
2330   top = chunk_at_offset(victim, nb);
2332   check_malloced_chunk(victim, nb);
2500   INTERNAL_SIZE_T    nb;      /* padded request size */
2534   nb = request2size(bytes);
2540     newp = mremap_chunk(oldp, nb);
2544     if(oldsize - SIZE_SZ >= nb) return oldmem; /* do nothing */
2556   if ((long)(oldsize) < (long)(nb))
2569 	if ((long)(nextsize + newsize) >= (long)(nb + MINSIZE))
2572 	  top = chunk_at_offset(oldp, nb);
2573 	  set_head(top, (newsize - nb) | PREV_INUSE);
2574 	  set_head_size(oldp, nb);
2580       else if (((long)(nextsize + newsize) >= (long)(nb)))
2607 	  if ((long)(nextsize + prevsize + newsize) >= (long)(nb + MINSIZE))
2614 	    top = chunk_at_offset(newp, nb);
2615 	    set_head(top, (newsize - nb) | PREV_INUSE);
2616 	    set_head_size(newp, nb);
2622 	else if (((long)(nextsize + prevsize + newsize) >= (long)(nb)))
2635       if (prev != 0 && (long)(prevsize + newsize) >= (long)nb)
2672   if (newsize - nb >= MINSIZE) /* split off remainder */
2674     remainder = chunk_at_offset(newp, nb);
2675     remainder_size = newsize - nb;
2676     set_head_size(newp, nb);
2719   INTERNAL_SIZE_T    nb;      /* padded  request size */
2741   nb = request2size(bytes);
2742   m  = (char*)(mALLOc(nb + alignment + MINSIZE));
2790     assert (newsize >= nb && (((unsigned long)(chunk2mem(p))) % alignment) == 0);
2795   remainder_size = chunksize(p) - nb;
2799     remainder = chunk_at_offset(p, nb);
2801     set_head_size(p, nb);