Add cplusplus initialization for ARMCC; Fix printf issue in _sys_write.

components/cplusplus/crt_init.c

+/*
+* File      : crt_init.c
+* This file is part of Device File System in RT-Thread RTOS
+* COPYRIGHT (C) 2008-2011, RT-Thread Development Team
+*
+*  This program is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU General Public License as published by
+*  the Free Software Foundation; either version 2 of the License, or
+*  (at your option) any later version.
+*
+*  This program is distributed in the hope that it will be useful,
+*  but WITHOUT ANY WARRANTY; without even the implied warranty of
+*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*  GNU General Public License for more details.
+*
+*  You should have received a copy of the GNU General Public License along
+*  with this program; if not, write to the Free Software Foundation, Inc.,
+*  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*
+* Change Logs:
+* Date           Author       Notes
+* 2014-12-03     Bernard      Add copyright header.
+* 2014-12-29     Bernard      Add cplusplus initialization for ARMCC.
+*/
+
 #include <rtthread.h>
 
+#ifdef __CC_ARM
+extern void $Super$$__cpp_initialize__aeabi_(void);
+/* we need to change the cpp_initialize order */
+void $Sub$$__cpp_initialize__aeabi_(void)
+{
+	/* empty */
+}
+#endif
+
 int cplusplus_system_init(void)
 {
 #if defined(__GNUC__) && !defined(__CC_ARM)
@@ -16,9 +50,11 @@ int cplusplus_system_init(void)
     {
         (*ctors_func)();
     }
+#elif defined(__CC_ARM)
+    /* call armcc lib to initialize cplusplus */
+	$Super$$__cpp_initialize__aeabi_();
 #endif
 
     return 0;
 }
 INIT_COMPONENT_EXPORT(cplusplus_system_init);
-

components/libc/armlibc/stubs.c

@@ -169,7 +169,8 @@ int _sys_write(FILEHANDLE fh, const unsigned char *buf, unsigned len, int mode)
 
         console_device = rt_console_get_device();
         if (console_device != 0) rt_device_write(console_device, 0, buf, len);
-        return len;
+
+		return 0;
 #endif
     }