diff --git a/components/SConscript b/components/SConscript
index 538e976a52..ae6f3271ab 100644
--- a/components/SConscript
+++ b/components/SConscript
@@ -27,8 +27,11 @@ if 'RT_USING_MODBUS' in dir(rtconfig) and rtconfig.RT_USING_MODBUS:
 if 'RT_USING_RTGUI' in dir(rtconfig) and rtconfig.RT_USING_RTGUI:
 	objs = objs + SConscript('rtgui/SConscript')
 
+if 'RT_USING_MODULE' in dir(rtconfig) and rtconfig.RT_USING_MODULE:
+	objs = objs + SConscript('module/interface/SConscript')
+
 # build each modules
 if rtconfig.CROSS_TOOL == 'gcc':
-	SConscript('hello/SConscript')
+	SConscript('module/examples/application/basicapp/SConscript')	
 
 Return('objs')
diff --git a/components/hello/SConscript b/components/hello/SConscript
deleted file mode 100644
index 215c4eb4cb..0000000000
--- a/components/hello/SConscript
+++ /dev/null
@@ -1,10 +0,0 @@
-Import('env')
-
-target = 'hello.mo'
-
-module_env = env.Clone(CPPDEFINE = 'RT_MODULE')
-module_env.Replace(LINKFLAGS = ' -r -d -e rtm_main -nostdlib')
-
-src_local = Glob('*.c')
-
-module_env.Program(target, src_local)
diff --git a/components/hello/hello.c b/components/hello/hello.c
deleted file mode 100644
index 6b6402de1c..0000000000
--- a/components/hello/hello.c
+++ /dev/null
@@ -1,22 +0,0 @@
-#include <rtthread.h>
-
-static int a = 0;
-int b = 1000000;
-
-void function(int count1, int count2)
-{
-	rt_kprintf("Hello RT-Thread %d %d\n", count1, count2);
-}
-
-int rtm_main(void)
-{
-	int i;
-	for(i=0; i<1000; i++) 
-	{	
-		a++;
-		b--;
-		function(a, b);
-	}
-
-	return 0;
-}
diff --git a/components/module/examples/application/basicapp/SConscript b/components/module/examples/application/basicapp/SConscript
new file mode 100644
index 0000000000..e8f79a5fd9
--- /dev/null
+++ b/components/module/examples/application/basicapp/SConscript
@@ -0,0 +1,27 @@
+Import('env')
+Import('projects')
+Import('RTT_ROOT')
+Import('rtconfig')
+
+# group definitions
+group = {}
+group['name'] = 'examples'
+group['src'] = Glob('*.c')
+group['CCFLAGS'] = ''
+group['CPPPATH'] = [RTT_ROOT + '/components/module/interface']
+group['CPPDEFINES'] = ''
+
+target = 'hello.mo'
+
+# add group to project list
+projects.append(group)
+
+env.Append(CCFLAGS = group['CCFLAGS'])
+env.Append(CPPPATH = group['CPPPATH'])
+env.Append(CPPDEFINES = group['CPPDEFINES'])
+module_env = env.Clone(CPPDEFINE = 'RT_MODULE')
+module_env.Replace(LINKFLAGS = ' -mcpu=arm920t -r -d -e rt_module_entry -nostdlib -s')
+
+src_local = Glob('*.c')
+
+module_env.Program(target, src_local)
diff --git a/components/module/examples/application/basicapp/basicapp.c b/components/module/examples/application/basicapp/basicapp.c
new file mode 100644
index 0000000000..90d39f1427
--- /dev/null
+++ b/components/module/examples/application/basicapp/basicapp.c
@@ -0,0 +1,26 @@
+#include <rtthread.h>
+#include <interface_help.h>
+
+int a = 0;
+int b = 1000000;
+int c = 0;
+
+void function(int count1, int count2, int count3)
+{
+	rt_kprintf("Hello RT-Thread %d %d\n", count1, count2, count3);
+}
+
+int rt_application_entry(void)
+{
+	int i;
+	for(i=0; i<1000; i++) 
+	{	
+		a++;
+		b--;
+		c++;
+		function(a, b, c);
+	}
+
+	return 0;
+}
+
diff --git a/components/module/examples/application/basicapp/module_entry.c b/components/module/examples/application/basicapp/module_entry.c
new file mode 100644
index 0000000000..1b523da100
--- /dev/null
+++ b/components/module/examples/application/basicapp/module_entry.c
@@ -0,0 +1,21 @@
+#include <rtthread.h>
+#include <interface_help.h>
+
+extern int rt_application_entry();
+rt_shell_t ishell = RT_NULL;
+
+int rt_module_entry(const void* shell, void** object_info)
+{
+	/* init shell */
+	ishell = (rt_shell_t)shell;
+	struct rt_module_info *info = (struct rt_module_info*)rt_malloc(sizeof(struct rt_module_info));
+
+	info->module_refs = 0;
+	info->module_type = RT_Module_Class_APP;
+	info->module_guid = 0xdead;
+	info->exec_entry = (void *)rt_application_entry;
+	info->module_interface = RT_NULL;
+
+	*object_info = info;
+}
+
diff --git a/components/module/interface/SConscript b/components/module/interface/SConscript
new file mode 100644
index 0000000000..a0956d9a18
--- /dev/null
+++ b/components/module/interface/SConscript
@@ -0,0 +1,23 @@
+Import('env')
+Import('projects')
+Import('RTT_ROOT')
+Import('rtconfig')
+
+# group definitions
+group = {}
+group['name'] = 'module'
+group['src'] = Glob('src/*.c')
+group['CCFLAGS'] = ''
+group['CPPPATH'] = [RTT_ROOT + '/components/module/interface/include']
+group['CPPDEFINES'] = ''
+
+# add group to project list
+projects.append(group)
+
+env.Append(CCFLAGS = group['CCFLAGS'])
+env.Append(CPPPATH = group['CPPPATH'])
+env.Append(CPPDEFINES = group['CPPDEFINES'])
+
+objs = env.Object(group['src'])
+
+Return('objs')
diff --git a/components/module/interface/include/interface_help.h b/components/module/interface/include/interface_help.h
new file mode 100644
index 0000000000..88dc2b1630
--- /dev/null
+++ b/components/module/interface/include/interface_help.h
@@ -0,0 +1,124 @@
+#include <rtdef.h>
+#include <interface_kernel.h>
+
+extern rt_shell_t ishell;
+#define SHELL()				ishell				
+
+#define IKSERVICE()			(SHELL()->i_kservice)
+#define ITHREAD()			(SHELL()->i_thread)
+#define ISEM()				(SHELL()->i_sem)
+#define IMUTEX()				(SHELL()->i_mutex)
+#define IEVENT()				(SHELL()->i_event)
+#define IMB()					(SHELL()->i_mb)
+#define IMQ()					(SHELL()->i_mq)
+#define IMP()					(SHELL()->i_mp)
+#define IHEAP()				(SHELL()->i_heap)
+#define IDEVICE()				(SHELL()->i_device)
+#define ITIMER()				(SHELL()->i_timer)	
+
+/* kernel service */
+#define rt_kprintf			 	IKSERVICE()->rt_kprintf
+
+/* thread */
+#define rt_thread_init			ITHREAD()->rt_thread_init
+#define rt_thread_create		ITHREAD()->rt_thread_create
+#define rt_thread_detach		ITHREAD()->rt_thread_detach
+#define rt_thread_find		ITHREAD()->rt_thread_find
+#define rt_thread_self		ITHREAD()->rt_thread_self
+#define rt_thread_startup		ITHREAD()->rt_thread_startup
+#define rt_thread_delete		ITHREAD()->rt_thread_delete
+#define rt_thread_yield		ITHREAD()->rt_thread_yield
+#define rt_thread_delay		ITHREAD()->rt_thread_delay
+#define rt_thread_control		ITHREAD()->rt_thread_control
+#define rt_thread_suspend	ITHREAD()->rt_thread_suspend
+#define rt_thread_resume		ITHREAD()->rt_thread_resume
+#define rt_thread_timeout	ITHREAD()->rt_thread_timeout
+
+/* semaphore */
+#define rt_sem_init			ISEM()->rt_sem_init
+#define rt_sem_detach		ISEM()->rt_sem_detach
+#define rt_sem_create		ISEM()->rt_sem_create
+#define rt_sem_delete		ISEM()->rt_sem_delete
+#define rt_sem_take			ISEM()->rt_sem_take
+#define rt_sem_trytake		ISEM()->rt_sem_trytake
+#define rt_sem_release		ISEM()->rt_sem_release
+#define rt_sem_control		ISEM()->rt_sem_control
+
+/* mutex */
+#define rt_mutex_init			IMUTEX()->rt_mutex_init
+#define rt_mutex_detach		IMUTEX()->rt_mutex_detach
+#define rt_mutex_create		IMUTEX()->rt_mutex_create
+#define rt_mutex_delete		IMUTEX()->rt_mutex_delete
+#define rt_mutex_take		IMUTEX()->rt_mutex_take
+#define rt_mutex_trytake		IMUTEX()->rt_mutex_trytake
+#define rt_mutex_release		IMUTEX()->rt_mutex_release
+#define rt_mutex_control		IMUTEX()->rt_mutex_control
+
+/* event */
+#define rt_event_init			IEVENT()->rt_event_init
+#define rt_event_detach		IEVENT()->rt_event_detach
+#define rt_event_create		IEVENT()->rt_event_create
+#define rt_event_delete		IEVENT()->rt_event_delete
+#define rt_event_send		IEVENT()->rt_event_send
+#define rt_event_recv		IEVENT()->rt_event_recv
+#define rt_event_control		IEVENT()->rt_event_control
+
+/* mailbox */
+#define rt_mb_init			IMB()->rt_mb_init
+#define rt_mb_detach			IMB()->rt_mb_detach
+#define rt_mb_create			IMB()->rt_mb_create
+#define rt_mb_delete			IMB()->rt_mb_delete
+#define rt_mb_send			IMB()->rt_mb_send
+#define rt_mb_recv			IMB()->rt_mb_recv
+#define rt_mb_control		IMB()->rt_mb_control
+
+/* message queue interface */
+#define rt_mq_init			IMQ()->rt_mq_init
+#define rt_mq_detach			IMQ()->rt_mq_detach
+#define rt_mq_create			IMQ()->rt_mq_create
+#define rt_mq_delete			IMQ()->rt_mq_delete
+#define rt_mq_send			IMQ()->rt_mq_send
+#define rt_mq_urgent			IMQ()->rt_mq_urgent
+#define rt_mq_recv			IMQ()->rt_mq_recv
+#define rt_mq_control		IMQ()->rt_mq_control
+
+/* memory pool */
+#define rt_mp_init			IMP()->rt_mp_init
+#define rt_mp_detach			IMP()->rt_mp_detach
+#define rt_mp_create			IMP()->rt_mp_create
+#define rt_mp_delete			IMP()->rt_mp_delete
+#define rt_mp_alloc			IMP()->rt_mp_alloc
+#define rt_mp_free			IMP()->rt_mp_free
+
+/* heap memory */
+#define rt_malloc				IHEAP()->rt_malloc
+#define rt_free				IHEAP()->rt_free
+#define rt_realloc			IHEAP()->rt_realloc
+#define rt_calloc				IHEAP()->rt_calloc
+
+/* device */
+#define rt_device_register	IDEVICE()->rt_device_register
+#define rt_device_unregister	IDEVICE()->rt_device_unregister
+#define rt_device_init_all		IDEVICE()->rt_device_init_all
+#define rt_device_find		IDEVICE()->rt_device_find
+#define rt_device_init			IDEVICE()->rt_device_init
+#define rt_device_open		IDEVICE()->rt_device_open
+#define rt_device_close		IDEVICE()->rt_device_close
+#define rt_device_read		IDEVICE()->rt_device_read
+#define rt_device_write		IDEVICE()->rt_device_write
+#define rt_device_control		IDEVICE()->rt_device_control
+#define rt_device_set_rx_indicate		IDEVICE()->rt_device_set_rx_indicate
+#define rt_device_set_tx_complete	IDEVICE()->rt_device_set_tx_complete
+
+/* timer */
+#define rt_tick_get			ITIMER()->rt_tick_get
+#define rt_system_timer_init	ITIMER()->rt_system_timer_init
+#define rt_timer_init			ITIMER()->rt_timer_init
+#define rt_timer_detach		ITIMER()->rt_timer_detach
+#define rt_timer_create		ITIMER()->rt_timer_create
+#define rt_timer_delete		ITIMER()->rt_timer_delete
+#define rt_timer_start		ITIMER()->rt_timer_start
+#define rt_timer_stop			ITIMER()->rt_timer_stop
+#define rt_timer_control		ITIMER()->rt_timer_control
+#define rt_tick_from_millisecond		ITIMER()->rt_tick_from_millisecond
+#define rt_system_timer_thread_init	ITIMER()->rt_system_timer_thread_init
diff --git a/components/module/interface/include/interface_kernel.h b/components/module/interface/include/interface_kernel.h
new file mode 100644
index 0000000000..3a00d52005
--- /dev/null
+++ b/components/module/interface/include/interface_kernel.h
@@ -0,0 +1,244 @@
+#include <rtdef.h>
+#include <rtthread.h>
+
+/* RT-Thread kernel component guid */
+#define RTTHREAD_GUID_KERNEL			1000
+#define RTTHREAD_GUID_KSERVICE       	RTTHREAD_GUID_KERNEL
+#define RTTHREAD_GUID_THREAD          	(RTTHREAD_GUID_KERNEL + 1)
+#define RTTHREAD_GUID_SEMAPHORE		(RTTHREAD_GUID_KERNEL + 2)
+#define RTTHREAD_GUID_MUTEX			(RTTHREAD_GUID_KERNEL + 3)
+#define RTTHREAD_GUID_MAILBOX          	(RTTHREAD_GUID_KERNEL + 4)
+#define RTTHREAD_GUID_MESSAGEQUEUE	(RTTHREAD_GUID_KERNEL + 5)
+#define RTTHREAD_GUID_MEMPOOL 		(RTTHREAD_GUID_KERNEL + 6)
+#define RTTHREAD_GUID_DEVICE      	 	(RTTHREAD_GUID_KERNEL + 7)
+#define RTTHREAD_GUID_TIMER      		(RTTHREAD_GUID_KERNEL + 8)
+
+/* file system component guid */
+#define RTTHREAD_GUID_FILESYSTEM		2000
+/* net component guid */
+#define RTTHREAD_GUID_NET				3000
+/* gui component guid */
+#define RTTHREAD_GUID_GUI				4000
+/* application guid */
+#define RTTHREAD_GUID_APP_START		10000
+/* service guid */
+#define RTTHREAD_GUID_SEVICE_START	20000
+
+/* 
+ * kservice interface
+ */
+struct rt_kservice_interface
+{
+	void (*rt_kprintf)(const char *fmt, ...);
+}; 
+typedef struct rt_kservice_interface* rt_kservice_interface_t;
+
+/*
+ * thread  interface 
+ */
+struct rt_thread_interface
+{
+	rt_err_t (*rt_thread_init)(struct rt_thread* thread,
+		const char* name,
+		void (*entry)(void* parameter), void* parameter,
+		void* stack_start, rt_uint32_t stack_size,
+		rt_uint8_t priority, rt_uint32_t tick);
+	rt_err_t (*rt_thread_detach)(rt_thread_t thread);
+	rt_thread_t (*rt_thread_create)(const char* name,
+		void (*entry)(void* parameter), void* parameter,
+		rt_uint32_t stack_size,
+		rt_uint8_t priority,
+		rt_uint32_t tick);
+	rt_thread_t (*rt_thread_self)(void);
+	rt_thread_t (*rt_thread_find)(char* name);
+	rt_err_t (*rt_thread_startup)(rt_thread_t thread);
+	rt_err_t (*rt_thread_delete)(rt_thread_t thread);
+	rt_err_t (*rt_thread_yield)(void);
+	rt_err_t (*rt_thread_delay)(rt_tick_t tick);
+	rt_err_t (*rt_thread_control)(rt_thread_t thread, rt_uint8_t cmd, void* arg);
+	rt_err_t (*rt_thread_suspend)(rt_thread_t thread);
+	rt_err_t (*rt_thread_resume)(rt_thread_t thread);
+	void (*rt_thread_timeout)(void* parameter);
+};
+typedef struct rt_thread_interface* rt_thread_interface_t;
+
+#ifdef RT_USING_SEMAPHORE
+/*
+ * semaphore interface
+ */
+ struct rt_sem_interface
+{
+	rt_err_t (*rt_sem_init)(rt_sem_t sem, const char* name, rt_uint32_t value, rt_uint8_t flag);
+	rt_err_t (*rt_sem_detach)(rt_sem_t sem);
+	rt_sem_t (*rt_sem_create)(const char* name, rt_uint32_t value, rt_uint8_t flag);
+	rt_err_t (*rt_sem_delete)(rt_sem_t sem);
+	rt_err_t (*rt_sem_take)(rt_sem_t sem, rt_int32_t time);
+	rt_err_t (*rt_sem_trytake)(rt_sem_t sem);
+	rt_err_t (*rt_sem_release)(rt_sem_t sem);
+	rt_err_t (*rt_sem_control)(rt_sem_t sem, rt_uint8_t cmd, void* arg);
+};
+typedef struct rt_sem_interface* rt_sem_interface_t;
+#endif
+
+#ifdef RT_USING_MUTEX
+/*
+ * mutex interface
+ */
+ struct rt_mutex_interface
+{
+	rt_err_t (*rt_mutex_init) (rt_mutex_t mutex, const char* name, rt_uint8_t flag);
+	rt_err_t (*rt_mutex_detach)(rt_mutex_t mutex);
+	rt_mutex_t (*rt_mutex_create)(const char* name, rt_uint8_t flag);
+	rt_err_t (*rt_mutex_delete)(rt_mutex_t mutex);
+	rt_err_t (*rt_mutex_take)(rt_mutex_t mutex, rt_int32_t time);
+	rt_err_t (*rt_mutex_release)(rt_mutex_t mutex);
+	rt_err_t (*rt_mutex_control)(rt_mutex_t mutex, rt_uint8_t cmd, void* arg);
+};
+typedef struct rt_mutex_interface* rt_mutex_interface_t;
+#endif
+
+#ifdef RT_USING_EVENT
+/*
+ * event interface
+ */
+ struct rt_event_interface
+{
+	rt_err_t (*rt_event_init)(rt_event_t event, const char* name, rt_uint8_t flag);
+	rt_err_t (*rt_event_detach)(rt_event_t event);
+	rt_event_t (*rt_event_create)(const char* name, rt_uint8_t flag);
+	rt_err_t (*rt_event_delete)(rt_event_t event);
+	rt_err_t (*rt_event_send)(rt_event_t event, rt_uint32_t set);
+	rt_err_t (*rt_event_recv)(rt_event_t event, rt_uint32_t set, rt_uint8_t option, rt_int32_t timeout, rt_uint32_t* recved);
+	rt_err_t (*rt_event_control)(rt_event_t event, rt_uint8_t cmd, void* arg);
+};
+typedef struct rt_event_interface* rt_event_interface_t;
+#endif
+
+#ifdef RT_USING_MAILBOX
+/*
+ * mailbox interface
+ */
+struct rt_mb_interface
+{
+	rt_err_t (*rt_mb_init)(rt_mailbox_t mb, const char* name, void* msgpool, rt_size_t size, rt_uint8_t flag);
+	rt_err_t (*rt_mb_detach)(rt_mailbox_t mb);
+	rt_mailbox_t (*rt_mb_create)(const char* name, rt_size_t size, rt_uint8_t flag);
+	rt_err_t (*rt_mb_delete)(rt_mailbox_t mb);
+	rt_err_t (*rt_mb_send)(rt_mailbox_t mb, rt_uint32_t value);
+	rt_err_t (*rt_mb_recv)(rt_mailbox_t mb, rt_uint32_t* value, rt_int32_t timeout);
+	rt_err_t (*rt_mb_control)(rt_mailbox_t mb, rt_uint8_t cmd, void* arg);
+};
+typedef struct rt_mb_interface* rt_mb_interface_t;
+#endif
+
+#ifdef RT_USING_MESSAGEQUEUE
+/*
+ * message queue interface
+ */
+struct rt_mq_interface
+{
+	rt_err_t (*rt_mq_init)(rt_mq_t mq, const char* name, void *msgpool, rt_size_t msg_size, rt_size_t pool_size, rt_uint8_t flag);
+	rt_err_t (*rt_mq_detach)(rt_mq_t mq);
+	rt_mq_t (*rt_mq_create)(const char* name, rt_size_t msg_size, rt_size_t max_msgs, rt_uint8_t flag);
+	rt_err_t (*rt_mq_delete)(rt_mq_t mq);
+	rt_err_t (*rt_mq_send)(rt_mq_t mq, void* buffer, rt_size_t size);
+	rt_err_t (*rt_mq_urgent)(rt_mq_t mq, void* buffer, rt_size_t size);
+	rt_err_t (*rt_mq_recv)(rt_mq_t mq, void* buffer, rt_size_t size, rt_int32_t timeout);
+	rt_err_t (*rt_mq_control)(rt_mq_t mq, rt_uint8_t cmd, void* arg);
+};
+typedef struct rt_mq_interface* rt_mq_interface_t;
+#endif
+
+#ifdef RT_USING_MEMPOOL
+/*
+ * memory pool interface
+ */
+struct rt_mp_interface
+{
+	rt_err_t (*rt_mp_init)(struct rt_mempool* mp, const char* name, void *start, rt_size_t size, rt_size_t block_size);
+	rt_err_t (*rt_mp_detach)(struct rt_mempool* mp);
+	rt_mp_t (*rt_mp_create)(const char* name, rt_size_t block_count, rt_size_t block_size);
+	rt_err_t (*rt_mp_delete)(rt_mp_t mp);
+	void* (*rt_mp_alloc)(rt_mp_t mp, rt_int32_t time);
+	void (*rt_mp_free)(void *block);
+};
+typedef struct rt_mp_interface* rt_mp_interface_t;
+#endif
+
+#ifdef RT_USING_HEAP
+/*
+ * heap memory interface
+ */
+struct rt_heap_interface
+{
+	void* (*rt_malloc)(rt_size_t size);
+	void (*rt_free)(void *ptr);
+	void* (*rt_realloc)(void *ptr, rt_size_t size);
+	void* (*rt_calloc)(rt_size_t count, rt_size_t size);
+};
+typedef struct rt_heap_interface* rt_heap_interface_t;
+#endif
+
+#ifdef RT_USING_DEVICE
+/*
+ * device interface
+ */
+struct rt_device_interface
+{ 
+	rt_err_t (*rt_device_register)(rt_device_t dev, const char* name, rt_uint16_t flags);
+	rt_err_t (*rt_device_unregister)(rt_device_t dev);
+	rt_err_t (*rt_device_init_all)(void);
+	rt_device_t (*rt_device_find)(const char* name);
+	rt_err_t (*rt_device_init)(rt_device_t dev);
+	rt_err_t (*rt_device_open)(rt_device_t dev, rt_uint16_t oflag);
+	rt_err_t (*rt_device_close)(rt_device_t dev);
+	rt_size_t (*rt_device_read)(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size);
+	rt_size_t (*rt_device_write)(rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size);
+	rt_err_t (*rt_device_control)(rt_device_t dev, rt_uint8_t cmd, void* arg);
+	rt_err_t (*rt_device_set_rx_indicate)(rt_device_t dev, rt_err_t (*rx_ind )(rt_device_t dev, rt_size_t size));
+	rt_err_t (*rt_device_set_tx_complete)(rt_device_t dev, rt_err_t (*tx_done)(rt_device_t dev, void *buffer));
+};
+typedef struct rt_device_interface* rt_device_interface_t;
+#endif
+
+/*
+ * clock & timer interface
+ */
+struct rt_timer_interface
+{
+	rt_tick_t (*rt_tick_get)(void);
+	rt_tick_t (*rt_tick_from_millisecond)(rt_uint32_t ms);
+	void (*rt_system_timer_init)(void);
+	void (*rt_system_timer_thread_init)(void);
+	void (*rt_timer_init)(rt_timer_t timer,
+					   const char* name,
+					   void (*timeout)(void* parameter), void* parameter,
+					   rt_tick_t time, rt_uint8_t flag);
+	rt_err_t (*rt_timer_detach)(rt_timer_t timer);
+	rt_timer_t (*rt_timer_create)(const char* name, void (*timeout)(void* parameter), void* parameter, rt_tick_t time, rt_uint8_t flag);
+	rt_err_t (*rt_timer_delete)(rt_timer_t timer);
+	rt_err_t (*rt_timer_start)(rt_timer_t timer);
+	rt_err_t (*rt_timer_stop)(rt_timer_t timer);
+	rt_err_t (*rt_timer_control)(rt_timer_t timer, rt_uint8_t cmd, void* arg);
+};
+typedef struct rt_timer_interface* rt_timer_interface_t;
+
+/*
+ * kernel interface
+ */
+struct  rt_shell
+{
+    const rt_kservice_interface_t i_kservice;
+    const rt_thread_interface_t i_thread;
+    const rt_sem_interface_t i_sem;
+    const rt_mutex_interface_t i_mutex;
+    const rt_event_interface_t i_event;
+    const rt_mb_interface_t i_mb;
+    const rt_mq_interface_t i_mq;
+    const rt_mp_interface_t i_mp;
+    const rt_heap_interface_t i_heap;
+    const rt_device_interface_t i_device;
+    const rt_timer_interface_t i_timer;	
+};
+typedef struct rt_shell* rt_shell_t;
+
diff --git a/components/module/interface/include/interface_module.h b/components/module/interface/include/interface_module.h
new file mode 100644
index 0000000000..c1eb4d6ecb
--- /dev/null
+++ b/components/module/interface/include/interface_module.h
@@ -0,0 +1 @@
+Imodule
\ No newline at end of file
diff --git a/components/module/interface/src/interface_filesys.c b/components/module/interface/src/interface_filesys.c
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/components/module/interface/src/interface_gui.c b/components/module/interface/src/interface_gui.c
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/components/module/interface/src/interface_kernel.c b/components/module/interface/src/interface_kernel.c
new file mode 100644
index 0000000000..ad897035a7
--- /dev/null
+++ b/components/module/interface/src/interface_kernel.c
@@ -0,0 +1,195 @@
+#include <interface_kernel.h>
+
+const struct rt_kservice_interface ikservice = 
+{
+	rt_kprintf
+};
+
+/*
+ * thread  interface  
+ */
+const struct rt_thread_interface ithread = 
+{
+	rt_thread_init,
+	rt_thread_detach,
+	rt_thread_create,
+	rt_thread_self,
+	rt_thread_find,
+	rt_thread_startup,
+	rt_thread_delete,
+	rt_thread_yield,
+	rt_thread_delay,
+	rt_thread_control,
+	rt_thread_suspend,
+	rt_thread_resume,
+	rt_thread_timeout		
+}; 
+
+
+#ifdef RT_USING_SEMAPHORE
+/*
+ * semaphore interface 
+ */
+const struct rt_sem_interface isem = 
+{ 
+	rt_sem_init,
+	rt_sem_detach,
+	rt_sem_create,
+	rt_sem_delete,
+	rt_sem_take,
+	rt_sem_trytake,
+	rt_sem_release,
+	rt_sem_control
+};	
+#endif
+
+#ifdef RT_USING_MUTEX
+/*
+ * mutex interface 
+ */
+const struct rt_mutex_interface imutex =
+{
+	rt_mutex_init,
+	rt_mutex_detach,
+	rt_mutex_create,
+	rt_mutex_delete,
+	rt_mutex_take,
+	rt_mutex_release,
+	rt_mutex_control
+};
+#endif
+
+#ifdef RT_USING_EVENT
+/*
+ * event interface 
+ */
+const struct rt_event_interface ievent =
+{ 
+	rt_event_init,
+	rt_event_detach,
+	rt_event_create,
+	rt_event_delete,
+	rt_event_send,
+	rt_event_recv,
+	rt_event_control 
+};	
+#endif
+
+#ifdef RT_USING_MAILBOX
+/*
+ * mailbox interface 
+ */
+const struct rt_mb_interface imb =
+{ 
+	rt_mb_init,
+	rt_mb_detach,
+	rt_mb_create,
+	rt_mb_delete,
+	rt_mb_send,
+	rt_mb_recv,
+	rt_mb_control 
+};	
+#endif
+
+#ifdef RT_USING_MESSAGEQUEUE
+/*
+ * message queue interface 
+ */
+const struct rt_mq_interface imq =
+{
+	rt_mq_init,
+	rt_mq_detach,
+	rt_mq_create,
+	rt_mq_delete,
+	rt_mq_send,
+	rt_mq_urgent,
+	rt_mq_recv,
+	rt_mq_control  
+};
+#endif
+
+#ifdef RT_USING_MEMPOOL
+/*
+ * memory pool interface 
+ */
+const struct rt_mp_interface imp =
+{
+	rt_mp_init,
+	rt_mp_detach,
+	rt_mp_create,
+	rt_mp_delete,
+	rt_mp_alloc,
+	rt_mp_free
+};
+#endif
+
+#ifdef RT_USING_HEAP
+/*
+ * heap memory interface 
+ */
+const struct rt_heap_interface iheap =
+{
+	rt_malloc,
+	rt_free,
+	rt_realloc,
+	rt_calloc
+};
+#endif
+
+#ifdef RT_USING_DEVICE
+/*
+ * device interface 
+ */
+const struct rt_device_interface idevice =
+{
+	rt_device_register,
+	rt_device_unregister,
+	rt_device_init_all,
+	rt_device_find,
+	rt_device_init,
+	rt_device_open,
+	rt_device_close,
+	rt_device_read,
+	rt_device_write,
+	rt_device_control,
+	rt_device_set_rx_indicate,
+	rt_device_set_tx_complete
+};
+#endif
+
+/*
+ * clock & timer interface 
+ */
+const struct rt_timer_interface itimer =
+{ 
+	rt_tick_get,
+	rt_tick_from_millisecond,
+	rt_system_timer_init,
+	rt_system_timer_thread_init,
+	rt_timer_init,
+	rt_timer_detach,
+	rt_timer_create,
+	rt_timer_delete,
+	rt_timer_start,
+	rt_timer_stop,
+	rt_timer_control
+};
+
+/*
+ * kernel interface
+ */
+const struct  rt_shell ishell = 
+{
+	(const rt_kservice_interface_t )&ikservice,
+	(const rt_thread_interface_t )&ithread,
+	(const rt_sem_interface_t )&isem,
+	(const rt_mutex_interface_t )&imutex,
+	(const rt_event_interface_t )&ievent,
+	(const rt_mb_interface_t )&imb,
+	(const rt_mq_interface_t )&imq,
+	(const rt_mp_interface_t )&imp,
+	(const rt_heap_interface_t )&iheap,	
+	(const rt_device_interface_t )&idevice,
+	(const rt_timer_interface_t )&itimer,	
+};
+
diff --git a/components/module/interface/src/interface_net.c b/components/module/interface/src/interface_net.c
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/include/rtdef.h b/include/rtdef.h
index 4e414d3041..b85f0b8b84 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -360,17 +360,37 @@ struct rt_thread
 };
 /*@}*/
 
-/* module clean types */
-#define RT_MODULE_FLAG_AUTO_CLEAN			0x01			/* auto clean	*/
-#define RT_MODULE_FLAG_MANUAL_CLEAN			0x02			/* manual clean */
-
 #ifdef RT_USING_MODULE
+/*
+ * module system
+ */
+enum rt_module_class_type
+{
+	RT_Module_Class_APP = 0,						/* application module								*/
+	RT_Module_Class_EXTENSION,		
+	RT_Module_Class_SERVICE,							/* service module 								*/
+	RT_Module_Class_Unknown							/* unknown module 								*/
+};
+
+struct rt_module_info
+{
+	/* export interface */
+	void *module_interface;
+	/* refence count */
+	rt_uint32_t module_refs;
+	/* module type */
+	enum rt_module_class_type module_type;
+	/* module guid */
+	rt_uint32_t module_guid;	
+	/* application entry */
+	void* exec_entry;
+};
+
 struct rt_module
 {
 	/* inherit from object */
 	struct rt_object parent;
 
-	rt_uint32_t module_data;
 	void* module_space;
 
 	void* module_entry;
@@ -382,6 +402,8 @@ struct rt_module
 	rt_uint32_t mempool_size;
 	void* module_mempool;
 
+	struct rt_module_info *module_info;
+
 	/* object in this module, module object is the last basic object type */
 	struct rt_object_information module_object[RT_Object_Class_Module];
 };
diff --git a/include/rtm.h b/include/rtm.h
index 596d5f7f07..653d94327f 100644
--- a/include/rtm.h
+++ b/include/rtm.h
@@ -2,6 +2,7 @@
 #define __RTM_H__
 
 #include <rtdef.h>
+#include <rtthread.h>
 
 #ifdef RT_USING_MODULE
 #define RTM_EXPORT(symbol)					 							\
@@ -11,6 +12,7 @@ const struct rt_module_symtab __rtmsym_##symbol SECTION("RTMSymTab")= 	\
 	(rt_uint32_t)&symbol,		\
 	__rtmsym_##symbol##_name,	\
 };
+
 #else
 #define RTM_EXPORT(symbol)	
 #endif
diff --git a/src/idle.c b/src/idle.c
index b5cccf1260..453f6bc409 100644
--- a/src/idle.c
+++ b/src/idle.c
@@ -97,7 +97,7 @@ static void rt_thread_idle_entry(void* parameter)
 				/* if sub thread list and main thread are null */
 				if((module->module_thread == RT_NULL) &&
 					rt_list_isempty(&module->module_object[RT_Object_Class_Thread].object_list) &&
-					(module->parent.flag & RT_MODULE_FLAG_AUTO_CLEAN))
+					(module->module_info->module_type == RT_Module_Class_APP))
 				{
 					/* unload module */
 					rt_module_unload(module);
diff --git a/src/module.c b/src/module.c
index 19fbd04fb2..decd8e6222 100644
--- a/src/module.c
+++ b/src/module.c
@@ -19,7 +19,8 @@
 #include "module.h"
 #include "kservice.h"
 
-/* #define RT_MODULE_DEBUG  */
+#define RT_MODULE_DEBUG
+#ifdef RT_USING_MODULE
 
 #define elf_module 	((Elf32_Ehdr *)module_ptr)
 #define shdr		((Elf32_Shdr *)((rt_uint8_t *)module_ptr + elf_module->e_shoff))
@@ -32,10 +33,11 @@
 #define IS_AX(s)		((s.sh_flags & SHF_ALLOC) && (s.sh_flags & SHF_EXECINSTR))
 #define IS_AW(s)		((s.sh_flags & SHF_ALLOC) && (s.sh_flags & SHF_WRITE))
 
-#ifdef RT_USING_MODULE
 rt_list_t rt_module_symbol_list;
 struct rt_module* rt_current_module;
 struct rt_module_symtab *_rt_module_symtab_begin = RT_NULL, *_rt_module_symtab_end = RT_NULL;
+extern const struct  rt_shell ishell;
+
 void rt_system_module_init()
 {
 #ifdef __CC_ARM
@@ -101,6 +103,11 @@ int rt_module_arm_relocate(struct rt_module* module, Elf32_Rel *rel, Elf32_Addr
 #endif
 		break;
 
+	case R_ARM_V4BX:
+		*where &= 0xf000000f;
+		*where |= 0x01a0f000;
+		break;
+
 	default:
 		return -1;
 	}
@@ -174,7 +181,7 @@ static void rt_module_init_object_container(struct rt_module* module)
 
 struct rt_module* rt_module_load(void* module_ptr, const rt_uint8_t* name)
 {
-	rt_uint32_t index, rodata_addr = 0, bss_addr = 0;
+	rt_uint32_t index, rodata_addr = 0, data_addr = 0, bss_addr = 0;
 	rt_uint32_t module_addr = 0, module_size = 0;
 	struct rt_module* module = RT_NULL;
 	rt_uint8_t *ptr, *strtab, *shstrab;
@@ -219,7 +226,7 @@ struct rt_module* rt_module_load(void* module_ptr, const rt_uint8_t* name)
 
 	/* allocate module */
 	module = (struct rt_module *)rt_object_allocate(RT_Object_Class_Module, (const char*)name);
-	if (module == RT_NULL) return module;
+	if (module == RT_NULL) return RT_NULL;
 
 	/* allocate module space */
 	module->module_space = rt_malloc(module_size);
@@ -254,7 +261,8 @@ struct rt_module* rt_module_load(void* module_ptr, const rt_uint8_t* name)
 		/* load data section */
 		if (IS_PROG(shdr[index]) && IS_AW(shdr[index]))
 		{
-			module->module_data = (rt_uint32_t)ptr;
+			data_addr = (rt_uint32_t)ptr;
+			rt_kprintf("data section address 0x%x\n", data_addr);			
 			rt_memcpy(ptr, (rt_uint8_t*)elf_module + shdr[index].sh_offset, shdr[index].sh_size);
 			ptr += shdr[index].sh_size;
 		}
@@ -263,6 +271,7 @@ struct rt_module* rt_module_load(void* module_ptr, const rt_uint8_t* name)
 		if (IS_NOPROG(shdr[index]) && IS_AW(shdr[index]))
 		{
 			bss_addr = (rt_uint32_t)ptr;
+			rt_kprintf("bss section address 0x%x\n", bss_addr);			
 			rt_memset(ptr, 0, shdr[index].sh_size);
 		}
 	}
@@ -293,24 +302,35 @@ struct rt_module* rt_module_load(void* module_ptr, const rt_uint8_t* name)
 			{
 				Elf32_Sym *sym = &symtab[ELF32_R_SYM(rel->r_info)];
 #ifdef RT_MODULE_DEBUG
-				rt_kprintf("relocate symbol: %s\n", strtab + sym->st_name);
+				rt_kprintf("relocate symbol %s\n", strtab + sym->st_name);
 #endif
 				if (sym->st_shndx != STN_UNDEF)
 				{				
-					if(ELF_ST_TYPE(sym->st_info) == STT_SECTION)
+					if((ELF_ST_TYPE(sym->st_info) == STT_SECTION) 
+						|| (ELF_ST_TYPE(sym->st_info) == STT_OBJECT))
 					{	
+						rt_kprintf("section name %s\n", shstrab + shdr[sym->st_shndx].sh_name);
 						if (rt_strncmp(shstrab + shdr[sym->st_shndx].sh_name, ELF_RODATA, 8) == 0)
 						{
 							/* relocate rodata section */
 							rt_module_arm_relocate(module, rel,
-								(Elf32_Addr)(rodata_addr),
+								(Elf32_Addr)(rodata_addr + sym->st_value),
 								module_addr); 
 						}
 						else if(strncmp(shstrab + shdr[sym->st_shndx].sh_name, ELF_BSS, 5) == 0)
 						{
 							/* relocate bss section */
-							rt_module_arm_relocate(module, rel, (Elf32_Addr)bss_addr, module_addr);
-						}	
+							rt_module_arm_relocate(module, rel, 
+								(Elf32_Addr)bss_addr + sym->st_value, 
+								module_addr);
+						}
+						else if(strncmp(shstrab + shdr[sym->st_shndx].sh_name, ELF_DATA, 6) == 0)
+						{
+							/* relocate bss section */
+							rt_module_arm_relocate(module, rel, 
+								(Elf32_Addr)data_addr + sym->st_value, 
+								module_addr);
+						}						
 					}
 					else if(ELF_ST_TYPE(sym->st_info) == STT_FUNC )
 					{	
@@ -319,25 +339,26 @@ struct rt_module* rt_module_load(void* module_ptr, const rt_uint8_t* name)
 							(Elf32_Addr)((rt_uint8_t*)module->module_space - module_addr + sym->st_value),
 							module_addr); 
 					}
-					else if(ELF_ST_TYPE(sym->st_info) == STT_OBJECT)
-					{
-						/* relocate object in data section */
-						rt_module_arm_relocate(module, rel,
-							(Elf32_Addr)(module->module_data + sym->st_value),
-							module_addr); 
-					}
 				}
 				else
 				{
 					Elf32_Addr addr;
+
+					if(ELF32_R_TYPE(rel->r_info) != R_ARM_V4BX)
+					{	
 #ifdef RT_MODULE_DEBUG
-					rt_kprintf("unresolved relocate symbol: %s\n", strtab + sym->st_name);
+						rt_kprintf("unresolved relocate symbol: %s\n", strtab + sym->st_name);
 #endif
-					/* need to resolve symbol in kernel symbol table */
-					addr = rt_module_symbol_find(strtab + sym->st_name);
-					if (addr != (Elf32_Addr)RT_NULL)
+						/* need to resolve symbol in kernel symbol table */
+						addr = rt_module_symbol_find(strtab + sym->st_name);
+						if (addr != (Elf32_Addr)RT_NULL)
+							rt_module_arm_relocate(module, rel, addr, module_addr);
+						else rt_kprintf("can't find %s in kernel symbol table\n", strtab + sym->st_name);
+					}
+					else
+					{
 						rt_module_arm_relocate(module, rel, addr, module_addr);
-					else rt_kprintf("can't find %s in kernel symbol table\n", strtab + sym->st_name);
+					}	
 				}
 
 				rel ++;
@@ -347,27 +368,50 @@ struct rt_module* rt_module_load(void* module_ptr, const rt_uint8_t* name)
 
 	/* init module object container */
 	rt_module_init_object_container(module);
-
-	/* set module defalut clean type */
-	module->parent.flag |= RT_MODULE_FLAG_AUTO_CLEAN;
-	
-	/* create module main thread */
-	module->module_thread = rt_thread_create((const char*)name,
-		module->module_entry, RT_NULL,
-		512, 90, 10);
-	module->module_thread->module_parent = module;
-	rt_thread_startup(module->module_thread);
+	/* enter elf entry */
+	((elf_entry)module->module_entry)(&ishell, &module->module_info);
 
 	return module;
 }
 
+void rt_module_run(struct rt_module* module)
+{
+	struct rt_module_info *info;
+		
+	/* check parameter */
+	RT_ASSERT(module != RT_NULL);
+	RT_ASSERT(module->module_info != RT_NULL);
+
+	info = module->module_info;
+	if(info->module_type == RT_Module_Class_APP)
+	{
+		/* application */
+		module->module_thread = rt_thread_create(module->parent.name,
+			module->module_entry, RT_NULL,
+			512, 90, 10);
+		module->module_thread->module_parent = module;
+		rt_thread_startup(module->module_thread);
+	}
+	else if(info->module_type == RT_Module_Class_EXTENSION)
+	{
+		/* extension */
+	}
+	else if(info->module_type == RT_Module_Class_SERVICE)
+	{
+		/* service */	
+	}	
+}	
+
 void rt_module_unload(struct rt_module* module)
 {
 	int i;
 	struct rt_object* object;
 	struct rt_timer *timer;
 	struct rt_list_node *list, *node;
-		
+
+	/* check parameter */
+	RT_ASSERT(module != RT_NULL);
+
 	/* suspend module main thread */
 	if (module->module_thread->stat == RT_THREAD_READY)
 		rt_thread_suspend(module->module_thread);
@@ -379,7 +423,16 @@ void rt_module_unload(struct rt_module* module)
 		for (node = list->next; node != list; node = node->next)
 		{
 			object = rt_list_entry(node, struct rt_object, list);
-			rt_object_delete(object);
+			if (rt_object_is_systemobject(object) == RT_EOK)
+			{
+				/* detach static objcet */
+				rt_object_detach(object);
+			}
+			else
+			{	
+				/* delete dynamic object */
+				rt_object_delete(object);
+			}	
 		}
 	}	
 	
diff --git a/src/module.h b/src/module.h
index ae2e8b83a8..486e956b4f 100644
--- a/src/module.h
+++ b/src/module.h
@@ -155,11 +155,12 @@ typedef struct {
  * Relocation type for arm
  */
 #define	R_ARM_NONE	0
-#define	R_ARM_PC24	1
+#define	R_ARM_PC24		1
 #define	R_ARM_ABS32	2
 #define	R_ARM_PLT32	27
-#define	R_ARM_CALL	28
-#define R_ARM_JUMP24	29
+#define	R_ARM_CALL		28
+#define	R_ARM_JUMP24	29
+#define	R_ARM_V4BX		40
 
 /* Program Header */
 typedef struct {
@@ -202,4 +203,6 @@ typedef struct {
 /* Symbol table index */
 #define STN_UNDEF	0		/* undefined */
 
+typedef rt_err_t (*elf_entry)( const void * env, struct rt_module_info **module_info;);
+
 #endif
diff --git a/src/rtm.c b/src/rtm.c
index 9a5986d19c..355fbbe169 100644
--- a/src/rtm.c
+++ b/src/rtm.c
@@ -14,132 +14,3 @@
 
 #include <rtthread.h> 
 #include <rtm.h>
-
-/* some buildin kernel symbol */
-#ifdef RT_USING_MODULE
-/*
- * thread  interface symbol 
- */
-RTM_EXPORT(rt_thread_init)
-RTM_EXPORT(rt_thread_detach)
-RTM_EXPORT(rt_thread_create)
-RTM_EXPORT(rt_thread_self)
-RTM_EXPORT(rt_thread_find)
-RTM_EXPORT(rt_thread_startup)
-RTM_EXPORT(rt_thread_delete)
-RTM_EXPORT(rt_thread_yield)
-RTM_EXPORT(rt_thread_delay)
-RTM_EXPORT(rt_thread_control)
-RTM_EXPORT(rt_thread_suspend)
-RTM_EXPORT(rt_thread_resume)
-RTM_EXPORT(rt_thread_timeout)
-
-#ifdef RT_USING_SEMAPHORE
-/*
- * semaphore interface symbol
- */
-RTM_EXPORT(rt_sem_init)
-RTM_EXPORT(rt_sem_detach)
-RTM_EXPORT(rt_sem_create)
-RTM_EXPORT(rt_sem_delete)
-RTM_EXPORT(rt_sem_take)
-RTM_EXPORT(rt_sem_trytake)
-RTM_EXPORT(rt_sem_release)
-RTM_EXPORT(rt_sem_control)
-#endif
-
-#ifdef RT_USING_MUTEX
-/*
- * mutex interface symbol
- */
-RTM_EXPORT(rt_mutex_init)
-RTM_EXPORT(rt_mutex_detach)
-RTM_EXPORT(rt_mutex_create)
-RTM_EXPORT(rt_mutex_delete)
-RTM_EXPORT(rt_mutex_take)
-RTM_EXPORT(rt_mutex_release)
-RTM_EXPORT(rt_mutex_control)
-#endif
-
-#ifdef RT_USING_EVENT
-/*
- * event interface symbol
- */
-RTM_EXPORT(rt_event_init)
-RTM_EXPORT(rt_event_detach)
-RTM_EXPORT(rt_event_create)
-RTM_EXPORT(rt_event_delete)
-RTM_EXPORT(rt_event_send)
-RTM_EXPORT(rt_event_recv)
-RTM_EXPORT(rt_event_control) 
-#endif
-
-#ifdef RT_USING_MAILBOX
-/*
- * mailbox interface symbol
- */
-RTM_EXPORT(rt_mb_init)
-RTM_EXPORT(rt_mb_detach)
-RTM_EXPORT(rt_mb_create)
-RTM_EXPORT(rt_mb_delete)
-RTM_EXPORT(rt_mb_send)
-RTM_EXPORT(rt_mb_recv)
-RTM_EXPORT(rt_mb_control) 
-#endif
-
-#ifdef RT_USING_MESSAGEQUEUE
-/*
- * message queue interface symbol
- */
-RTM_EXPORT(rt_mq_init)
-RTM_EXPORT(rt_mq_detach)
-RTM_EXPORT(rt_mq_create)
-RTM_EXPORT(rt_mq_delete)
-RTM_EXPORT(rt_mq_send)
-RTM_EXPORT(rt_mq_urgent)
-RTM_EXPORT(rt_mq_recv)  
-RTM_EXPORT(rt_mq_control)  
-#endif
-
-#ifdef RT_USING_MEMPOOL
-/*
- * memory pool interface symbol
- */
-RTM_EXPORT(rt_mp_init)
-RTM_EXPORT(rt_mp_detach)
-RTM_EXPORT(rt_mp_create)
-RTM_EXPORT(rt_mp_delete)
-RTM_EXPORT(rt_mp_alloc)
-RTM_EXPORT(rt_mp_free)
-#endif
-
-#ifdef RT_USING_HEAP
-/*
- * heap memory interface symbol
- */
-RTM_EXPORT(rt_malloc)
-RTM_EXPORT(rt_free)
-RTM_EXPORT(rt_realloc)
-RTM_EXPORT(rt_calloc)
-#endif
-/*
- * clock & timer interface symbol
- */
-RTM_EXPORT(rt_tick_get)
-RTM_EXPORT(rt_tick_from_millisecond)
-RTM_EXPORT(rt_system_timer_init)
-RTM_EXPORT(rt_system_timer_thread_init)
-RTM_EXPORT(rt_timer_init)
-RTM_EXPORT(rt_timer_detach)
-RTM_EXPORT(rt_timer_create)
-RTM_EXPORT(rt_timer_delete)
-RTM_EXPORT(rt_timer_start)
-RTM_EXPORT(rt_timer_stop)
-RTM_EXPORT(rt_timer_control)
-
-/* 
- * kservice interface symbol
- */
-RTM_EXPORT(rt_kprintf)
-
-#endif