1710   INTERNAL_SIZE_T top_size;       /* new size of top chunk */  in malloc_extend_top()  local
1741     top_size = sbrk_size + old_top_size;  in malloc_extend_top()
1742     set_head(top, top_size | PREV_INUSE);  in malloc_extend_top()
1781     top_size = new_brk - brk + correction;  in malloc_extend_top()
1782     set_head(top, top_size | PREV_INUSE);  in malloc_extend_top()
1821   assert(((unsigned long)((char*)top + top_size) & (pagesz - 1)) == 0  in malloc_extend_top()
2860   long  top_size;        /* Amount of top-most memory */  in malloc_trim()  local
2869   top_size = chunksize(top);  in malloc_trim()
2870   extra = ((top_size - pad - MINSIZE + (pagesz-1)) / pagesz - 1) * pagesz;  in malloc_trim()
2882     if (current_brk != (char*)(top) + top_size)  in malloc_trim()
2896         top_size = current_brk - (char*)top;  in malloc_trim()
2897         if (top_size >= (long)MINSIZE) /* if not, we are very very dead! */  in malloc_trim()
2900           set_head(top, top_size | PREV_INUSE);  in malloc_trim()
2910         set_head(top, (top_size - extra) | PREV_INUSE);  in malloc_trim()