cleanup scons building script

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1065 bbd45198-f89e-11dd-88c7-29a3b14d5316

src/SConscript

@@ -1,23 +1,8 @@
-Import('env')
 Import('RTT_ROOT')
-Import('projects')
+from building import *
 
-# The set of source files associated with this SConscript file.
-src_local = Glob('*.c')
+src     = Glob('*.c')
+CPPPATH = [RTT_ROOT + '/include']
+group   = DefineGroup('Kernel', src, depend = [''], CPPPATH = CPPPATH)
 
-# group definitions
-group = {}
-group['name'] = 'Kernel'
-group['src'] = File(src_local)
-group['CCFLAGS'] = ''
-group['CPPPATH'] = [RTT_ROOT + '/include']
-group['CPPDEFINES'] = ''
-group['LINKFLAGS'] = ''
-
-# add group to project list
-projects.append(group)
-
-env.Append(CPPPATH = group['CPPPATH'])
-obj = env.Object(group['src'])
-
-Return('obj')
+Return('group')

src/ipc.c

@@ -453,7 +453,11 @@ rt_err_t rt_sem_control(rt_sem_t sem, rt_uint8_t cmd, void* arg)
 	RT_ASSERT(sem != RT_NULL);
 
 	if (cmd == RT_IPC_CMD_RESET)
-	{
+	{
+		rt_uint32_t value;
+
+		/* get value */
+		value = (rt_uint32_t)arg;		
 		/* disable interrupt */
 		level = rt_hw_interrupt_disable();
 
@@ -461,7 +465,7 @@ rt_err_t rt_sem_control(rt_sem_t sem, rt_uint8_t cmd, void* arg)
 		rt_ipc_object_resume_all(&sem->parent);
 
 		/* set new value */
-		sem->value = (rt_uint16_t)arg;
+		sem->value = (rt_uint16_t)value;
 
 		/* enable interrupt */
 		rt_hw_interrupt_enable(level);