[Kernel] Move the components initailzation to the kernel

components/dfs/filesystems/skeleton/skeleton.c

 /*
  * File      : skeleton.c
  * This file is part of Device File System in RT-Thread RTOS
- * COPYRIGHT (C) 2004-2011, RT-Thread Development Team
+ * COPYRIGHT (C) 2004-2015, 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
@@ -100,3 +100,4 @@ int dfs_skt_init(void)
     dfs_register(&_skt_fs);
     return 0;
 }
+INIT_FS_EXPORT(dfs_skt_init);

components/init/SConscript

-Import('rtconfig')
-from building import *
-
-cwd = GetCurrentDir()
-src = Glob('*.c')
-CPPPATH = [cwd]
-if rtconfig.CROSS_TOOL == 'keil':
-    LINKFLAGS = ' --keep __rt_init* '
-else:
-    LINKFLAGS = '' 
-    
-group = DefineGroup('Components', src, depend = ['RT_USING_COMPONENTS_INIT'], CPPPATH = CPPPATH, LINKFLAGS = LINKFLAGS)
-
-Return('group')

components/init/components.h → include/rtcomponents.h

 /*
- * File      : components_init.h
+ * File      : rtcomponents.h
+ *             header for RT-Thread components
  * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2012, RT-Thread Development Team
+ * COPYRIGHT (C) 2012-2015, 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
@@ -21,12 +22,11 @@
  * Date           Author       Notes
  * 2012-09-20     Bernard      Change the name to components.h
  *                             And all components related header files.
+ * 2015-02-06     Bernard      Rename the components.h to rtcom.h
  */
 
-#ifndef __COMPONENTS_INIT_H__
-#define __COMPONENTS_INIT_H__
-
-#include <rtthread.h>
+#ifndef RTCOM_H__
+#define RTCOM_H__
 
 #ifdef RT_USING_FINSH
 #include <finsh.h>
@@ -36,7 +36,6 @@
 #ifdef RT_USING_LWIP
 #include <lwip/sys.h>
 #include <netif/ethernetif.h>
-extern void lwip_system_init(void);
 #endif
 
 #ifdef RT_USING_DFS
@@ -68,9 +67,6 @@ extern void lwip_system_init(void);
 #endif
 #endif
 
-#ifdef RT_USING_NEWLIB
-#include <libc.h>
-#endif
 #ifdef RT_USING_PTHREADS
 #include <pthread.h>
 #endif
@@ -79,27 +75,5 @@ extern void lwip_system_init(void);
 #include <rtm.h>
 #endif
 
-#ifdef RT_USING_RTGUI
-#include <rtgui/rtgui_system.h>
-#endif
-
-#ifdef __cplusplus
-extern "C" {
 #endif
 
-/**
- * Initializes board routine in RT-Thread.
- */
-void rt_components_board_init(void);
-
-/**
- * Initializes components in RT-Thread
- * notes: this function must be invoked in Init Thread
- */
-void rt_components_init(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif

components/init/components.c → src/init.c

 /*
- * File      : components.c
+ * File      : init.c
  * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2012 - 2013, RT-Thread Development Team
+ * COPYRIGHT (C) 2012 - 2015, 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
@@ -23,11 +23,36 @@
  *                             And all components related header files.
  * 2012-12-23     Bernard      fix the pthread initialization issue.
  * 2013-06-23     Bernard      Add the init_call for components initialization.
- * 2013-07-05     Bernard      Remove initialization feature for MS VC++ compiler 
+ * 2013-07-05     Bernard      Remove initialization feature for MS VC++ compiler
+ * 2015-02-06     Bernard      Remove the MS VC++ support and move to the kernel
  */
 
-#include "components.h"
+#include <rtthread.h>
 
+#ifdef RT_USING_COMPONENTS_INIT
+/*
+ * Components Initialization will initialize some driver and components as following 
+ * order:
+ * rti_start         --> 0
+ * BOARD_EXPORT      --> 1
+ * rti_board_end     --> 1.end
+ *
+ * DEVICE_EXPORT     --> 2
+ * COMPONENT_EXPORT  --> 3
+ * FS_EXPORT         --> 4
+ * ENV_EXPORT        --> 5
+ * APP_EXPORT        --> 6 
+ * 
+ * rti_end           --> 6.end
+ *
+ * These automatically initializaiton, the driver or component initial function must 
+ * be defined with:
+ * INIT_BOARD_EXPORT(fn);
+ * INIT_DEVICE_EXPORT(fn);
+ * ...
+ * INIT_APP_EXPORT(fn);
+ * etc. 
+ */
 static int rti_start(void)
 {
     return 0;
@@ -38,29 +63,28 @@ static int rti_board_end(void)
 {
     return 0;
 }
-INIT_EXPORT(rti_board_end, "1.post");
+INIT_EXPORT(rti_board_end, "1.end");
 
 static int rti_end(void)
 {
     return 0;
 }
-INIT_EXPORT(rti_end,"7");
+INIT_EXPORT(rti_end, "6.end");
 
 /**
  * RT-Thread Components Initialization for board
  */
 void rt_components_board_init(void)
 {
-#ifndef _MSC_VER
 #if RT_DEBUG_INIT
-	int result;
-	const struct rt_init_desc *desc;
-	for (desc = &__rt_init_desc_rti_start; desc < &__rt_init_desc_rti_board_end; desc ++)
-	{
-		rt_kprintf("initialize %s", desc->fn_name);
-		result = desc->fn();
-		rt_kprintf(":%d done\n", result);
-	}
+    int result;
+    const struct rt_init_desc *desc;
+    for (desc = &__rt_init_desc_rti_start; desc < &__rt_init_desc_rti_board_end; desc ++)
+    {
+        rt_kprintf("initialize %s", desc->fn_name);
+        result = desc->fn();
+        rt_kprintf(":%d done\n", result);
+    }
 #else
     const init_fn_t *fn_ptr;
 
@@ -69,7 +93,6 @@ void rt_components_board_init(void)
         (*fn_ptr)();
     }
 #endif
-#endif
 }
 
 /**
@@ -77,18 +100,17 @@ void rt_components_board_init(void)
  */
 void rt_components_init(void)
 {
-#ifndef _MSC_VER
 #if RT_DEBUG_INIT
-	int result;
-	const struct rt_init_desc *desc;
-
-	rt_kprintf("do components intialization.\n");
-	for (desc = &__rt_init_desc_rti_board_end; desc < &__rt_init_desc_rti_end; desc ++)
-	{
-		rt_kprintf("initialize %s", desc->fn_name);
-		result = desc->fn();
-		rt_kprintf(":%d done\n", result);
-	}
+    int result;
+    const struct rt_init_desc *desc;
+
+    rt_kprintf("do components intialization.\n");
+    for (desc = &__rt_init_desc_rti_board_end; desc < &__rt_init_desc_rti_end; desc ++)
+    {
+        rt_kprintf("initialize %s", desc->fn_name);
+        result = desc->fn();
+        rt_kprintf(":%d done\n", result);
+    }
 #else
     const init_fn_t *fn_ptr;
 
@@ -97,81 +119,81 @@ void rt_components_init(void)
         (*fn_ptr)();
     }
 #endif
-#else
-#ifdef RT_USING_MODULE
-    rt_system_module_init();
-#endif
+}
+
+#ifdef RT_USING_USER_MAIN
+void rt_application_init(void);
+void rt_hw_board_init(void);
 
-#ifdef RT_USING_FINSH
-	/* initialize finsh */
-	finsh_system_init();
-	finsh_set_device(RT_CONSOLE_DEVICE_NAME);
+#ifndef RT_USING_HEAP
+/* if there is not enble heap, we should use static thread and stack. */
+ALIGN(8)
+static rt_uint8_t main_stack[2048];
+struct rt_thread main_thread;
 #endif
 
-#ifdef RT_USING_LWIP
-	/* initialize lwip stack */
-	/* register ethernetif device */
-	eth_system_device_init();
+/* the system main thread */
+void main_thread_entry(void *parameter)
+{
+    extern int main(void);
 
-	/* initialize lwip system */
-	lwip_system_init();
-	rt_kprintf("TCP/IP initialized!\n");
-#endif
+    /* RT-Thread components initialization */
+    rt_components_init();
 
-#ifdef RT_USING_DFS
-	/* initialize the device file system */
-	dfs_init();
+    /* invoke system main function */
+    main();
+}
 
-#ifdef RT_USING_DFS_ELMFAT
-	/* initialize the elm chan FatFS file system*/
-	elm_init();
-#endif
+void rt_application_init(void)
+{
+    rt_thread_t tid;
 
-#if defined(RT_USING_DFS_NFS) && defined(RT_USING_LWIP)
-	/* initialize NFSv3 client file system */
-	nfs_init();
-#endif
+#ifdef RT_USING_HEAP
+    tid = rt_thread_create("main", main_thread_entry, RT_NULL,
+                           2048, RT_THREAD_PRIORITY_MAX / 3, 20);
+    RT_ASSERT(tid != RT_NULL);
+#else
+    rt_err_t result;
 
-#ifdef RT_USING_DFS_YAFFS2
-	dfs_yaffs2_init();
+    tid = &main_thread;
+    result = rt_thread_init(tid, "main", main_thread_entry, RT_NULL,
+                            2048, RT_THREAD_PRIORITY_MAX / 3, 20);
+    RT_ASSERT(result != RT_EOK);
 #endif
 
-#ifdef RT_USING_DFS_UFFS
-	dfs_uffs_init();
-#endif
+    rt_thread_startup(tid);
+}
 
-#ifdef RT_USING_DFS_JFFS2
-	dfs_jffs2_init();
-#endif
+int rtthread_startup(void)
+{
+    /* board level initalization
+     * NOTE: please initialize heap inside board initialization.
+     */
+    rt_hw_board_init();
 
-#ifdef RT_USING_DFS_ROMFS
-	dfs_romfs_init();
-#endif
+    /* show RT-Thread version */
+    rt_show_version();
 
-#ifdef RT_USING_DFS_RAMFS
-	dfs_ramfs_init();
-#endif
+    /* timer system initialization */
+    rt_system_timer_init();
 
-#ifdef RT_USING_DFS_DEVFS
-	devfs_init();
-#endif
-#endif /* end of RT_USING_DFS */
+    /* scheduler system initialization */
+    rt_system_scheduler_init();
 
-#ifdef RT_USING_NEWLIB
-	libc_system_init(RT_CONSOLE_DEVICE_NAME);
-#else
-	/* the pthread system initialization will be initiallized in libc */
-#ifdef RT_USING_PTHREADS 
-	pthread_system_init();
-#endif
-#endif
+    /* create init_thread */
+    rt_application_init();
 
-#ifdef RT_USING_RTGUI
-	rtgui_system_server_init();
-#endif
+    /* timer thread initialization */
+    rt_system_timer_thread_init();
 
-#ifdef RT_USING_USB_HOST
-	rt_usb_host_init();
+    /* idle thread initialization */
+    rt_thread_idle_init();
+
+    /* start scheduler */
+    rt_system_scheduler_start();
+
+    /* never reach here */
+    return ;
+}
 #endif
 #endif
-}