update building script.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1728 bbd45198-f89e-11dd-88c7-29a3b14d5316

src/SConscript

@@ -2,12 +2,35 @@ Import('RTT_ROOT')
 Import('rtconfig')
 from building import *
 
-src     = Glob('*.c')
+src = Split('''
+device.c
+thread.c
+scheduler.c
+timer.c
+irq.c
+kservice.c
+clock.c
+object.c
+mempool.c
+ipc.c
+idle.c
+''')
+
 CPPPATH = [RTT_ROOT + '/include']
 if rtconfig.CROSS_TOOL == 'keil' and GetDepend('RT_USING_MODULE') == True:
     LINKFLAGS = ' --keep __rtmsym_* '
 else:
     LINKFLAGS = '' 
+
+if GetDepend('RT_USING_MODULE'):
+    src += Split('rtm.c')
+    src += Split('module.c')
+
+if GetDepend('RT_USING_SLAB'):
+    src += Split('slab.c')
+else:
+    src += Split('mem.c')
+
 group   = DefineGroup('Kernel', src, depend = [''], CPPPATH = CPPPATH, LINKFLAGS = LINKFLAGS)
 
 Return('group')

src/kservice.c

@@ -940,6 +940,16 @@ rt_int32_t rt_sprintf(char *buf, const char *format, ...)
 #ifdef RT_USING_CONSOLE
 
 #ifdef RT_USING_DEVICE
+/**
+ * This function returns the device using in console.
+ *
+ * @return the device using in console or RT_NULL
+ */
+rt_device_t rt_console_get_device(void)
+{
+	return _console_device;
+}
+
 /**
  * This function will set a device as console device.
  * After set a device to console, all output of rt_kprintf will be