10  *                             fix memory check in rt_realloc function
70  * This function will set a hook function, which will be invoked when a memory
71  * block is allocated from heap memory.
81  * This function will set a hook function, which will be invoked when a memory
82  * block is released to heap memory.
199  * This function will initialize system heap memory.
201  * @param begin_addr the beginning address of system heap memory.
202  * @param end_addr the end address of system heap memory.
216         /* calculate the aligned memory size */  in rt_system_heap_init()
266  * Allocate a block of memory with a minimum of 'size' bytes.
270  * @return pointer to allocated memory or NULL if no free memory was found.
293         RT_DEBUG_LOG(RT_DEBUG_MEM, ("no memory\n"));  in rt_malloc()
302     /* take memory semaphore */  in rt_malloc()
327                  *       the 2 regions would be combined, resulting in more free memory  in rt_malloc()
371             /* set memory block magic */  in rt_malloc()
395                          ("allocate memory at 0x%x, size: %d\n",  in rt_malloc()
402             /* return the memory data except mem struct */  in rt_malloc()
414  * This function will change the previously allocated memory block.
416  * @param rmem pointer to memory allocated by rt_malloc
419  * @return the changed memory block address
434         RT_DEBUG_LOG(RT_DEBUG_MEM, ("realloc: out of memory\n"));  in rt_realloc()
444     /* allocate a new memory block */  in rt_realloc()
453         /* illegal memory */  in rt_realloc()
473         /* split memory block */  in rt_realloc()
501     /* expand memory */  in rt_realloc()
503     if (nmem != RT_NULL) /* check memory */  in rt_realloc()
515  * that are size bytes of memory each and returns a pointer to the allocated
516  * memory.
518  * The allocated memory is filled with bytes of value zero.
523  * @return pointer to allocated memory / NULL pointer if there is an error
532     /* zero the memory */  in rt_calloc()
541  * This function will release the previously allocated memory block by
542  * rt_malloc. The released memory block is taken back to system heap.
544  * @param rmem the address of memory which will be released
564         RT_DEBUG_LOG(RT_DEBUG_MEM, ("illegal memory\n"));  in rt_free()
573                  ("release memory 0x%x, size: %d\n",  in rt_free()
630     rt_kprintf("total memory: %d\n", mem_size_aligned);  in list_mem()
631     rt_kprintf("used memory : %d\n", used_mem);  in list_mem()
632     rt_kprintf("maximum allocated memory: %d\n", max_mem);  in list_mem()
634 FINSH_FUNCTION_EXPORT(list_mem, list memory usage information)  in FINSH_FUNCTION_EXPORT()
655     rt_kprintf("Memory block wrong:\n");  in FINSH_FUNCTION_EXPORT()
664 MSH_CMD_EXPORT(memcheck, check memory data);
677     rt_kprintf("\n--memory item information --\n");  in memtrace()
702 MSH_CMD_EXPORT(memtrace, dump memory trace information);