18  * 2013-07-11     Grissiom     fix the memory block splitting issue.
40  * The initialized memory pool will be:
42  * | whole freed memory block          | Used Memory Block Tailer |
45  * block_list --> whole freed memory block
47  * The length of Used Memory Block Tailer is 0,
79     /* initialize the first big memory block */  in rt_memheap_init()
95     /* place the big memory block to free list */  in rt_memheap_init()
101     /* move to the end of memory pool to build a small tailer block,  in rt_memheap_init()
105     /* it's a used memory block */  in rt_memheap_init()
117                  ("memory heap: start addr 0x%08x, size %d, free list header 0x%08x\n",  in rt_memheap_init()
169         /* get the first free memory block */  in rt_memheap_alloc()
173             /* get current freed memory block size */  in rt_memheap_alloc()
177                 /* move to next free memory block */  in rt_memheap_alloc()
182         /* determine if the memory is available. */  in rt_memheap_alloc()
203                 /* mark the new block as a memory block and freed. */  in rt_memheap_alloc()
263             /* Return a memory address to the caller.  */  in rt_memheap_alloc()
265                          ("alloc mem: memory[0x%08x], heap[0x%08x], size: %d\n",  in rt_memheap_alloc()
277     RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("allocate memory: failed\n"));  in rt_memheap_alloc()
310     /* get memory block header and get the size of memory block */  in rt_memheap_realloc()
314     /* re-allocate memory */  in rt_memheap_realloc()
378                 /* mark the new block as a memory block and freed. */  in rt_memheap_realloc()
408         /* re-allocate a memory block */  in rt_memheap_realloc()
443     /* mark the new block as a memory block and freed. */  in rt_memheap_realloc()
490     /* return the old memory block */  in rt_memheap_realloc()
511     RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("free memory: memory[0x%08x], block[0x%08x]\n",  in rt_memheap_free()
517     /* check whether this block of memory has been over-written. */  in rt_memheap_free()
535     /* Mark the memory as available. */  in rt_memheap_free()
623         /* try to allocate on other memory heap */  in rt_malloc()
670     /* get old memory item */  in rt_realloc()
677         /* allocate memory block from other memheap */  in rt_realloc()
683             /* get the size of old memory block */  in rt_realloc()
707         /* clean memory */  in rt_calloc()