[Libc] Change libc_system_init as INIT_COMPONENT

components/libc/newlib/libc.c

@@ -18,17 +18,21 @@
 
 #endif
 
-void libc_system_init(const char* tty_name)
+int libc_system_init(void)
 {
 #ifdef RT_USING_DFS
     int fd;
+    struct rt_device *console_dev;
 
 #ifndef RT_USING_DFS_DEVFS
 #error Please enable devfs by defining RT_USING_DFS_DEVFS in rtconfig.h
 #endif
 
+    console_dev = rt_console_get_device();
+    if (console_dev)
+    {
         /* initialize console device */
-	rt_console_init(tty_name);
+        rt_console_init(console_dev->parent.name);
 
         /* open console as stdin/stdout/stderr */
         fd = open("/dev/console", O_RDONLY, 0); /* for stdin */
@@ -37,13 +41,15 @@ void libc_system_init(const char* tty_name)
 
         /* skip warning */
         fd = fd;
+    }
 #endif
 
     /* set PATH and HOME */
-	putenv("PATH=/");
-	putenv("HOME=/");
+    putenv("PATH=/bin");
+    putenv("HOME=/home");
 
 #ifdef RT_USING_PTHREADS
     pthread_system_init();
 #endif
 }
+INIT_COMPONENT_EXPORT(libc_system_init);

components/libc/newlib/libc.h

@@ -11,7 +11,7 @@
 #define MICROSECOND_PER_TICK    (MICROSECOND_PER_SECOND / RT_TICK_PER_SECOND)
 #define NANOSECOND_PER_TICK     (NANOSECOND_PER_SECOND  / RT_TICK_PER_SECOND)
 
-void libc_system_init(const char* tty_name);
+int libc_system_init(void);
 
 /* some time related function */
 int libc_set_time(const struct timespec *time);