sched: Support config the argument passed to init

it is useful to pass the nonempty argument to change the init task behaviour

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I684e9c76b9eac54404d0e4e63ab78e51e039c9a8

sched/Kconfig

@@ -329,6 +329,13 @@ config INIT_FILEPATH
 
 endchoice # Initialization task
 
+config INIT_ARGS
+	string "Application argument list"
+	depends on !INIT_NONE
+	---help---
+		The argument list for user applications. e.g.:
+		  "\"arg1\",\"arg2\",\"arg3\""
+
 if INIT_ENTRYPOINT
 config USER_ENTRYPOINT
 	string "Application entry point"
@@ -338,6 +345,13 @@ config USER_ENTRYPOINT
 		applications this is of the form 'app_main' where 'app' is the application
 		name. If not defined, USER_ENTRYPOINT defaults to "main".
 
+config USERMAIN_STACKSIZE
+	int "Main thread stack size"
+	default DEFAULT_TASK_STACKSIZE
+	---help---
+		The size of the stack to allocate for the user initialization thread
+		that is started as soon as the OS completes its initialization.
+
 config USERMAIN_PRIORITY
 	int "init thread priority"
 	default 100
@@ -1741,13 +1755,6 @@ config IDLETHREAD_STACKSIZE
 		point where start-up application is spawned, and (2) there after is the
 		IDLE thread that executes only when there is no other thread ready to run.
 
-config USERMAIN_STACKSIZE
-	int "Main thread stack size"
-	default DEFAULT_TASK_STACKSIZE
-	---help---
-		The size of the stack to allocate for the user initialization thread
-		that is started as soon as the OS completes its initialization.
-
 config PTHREAD_STACK_MIN
 	int "Minimum pthread stack size"
 	default 256

sched/init/nx_bringup.c

@@ -221,10 +221,18 @@ static inline void nx_workqueues(void)
  *
  ****************************************************************************/
 
-#if defined(CONFIG_INIT_ENTRYPOINT)
 static inline void nx_start_application(void)
 {
-  int pid;
+#ifdef CONFIG_INIT_ARGS
+  FAR char *const argv[] =
+  {
+    CONFIG_INIT_ARGS,
+    NULL,
+  };
+#else
+  FAR char *const *argv = NULL;
+#endif
+  int ret;
 
 #ifdef CONFIG_BOARD_LATE_INITIALIZE
   /* Perform any last-minute, board-specific initialization, if so
@@ -234,6 +242,8 @@ static inline void nx_start_application(void)
   board_late_initialize();
 #endif
 
+#if defined(CONFIG_INIT_ENTRYPOINT)
+
   /* Start the application initialization task.  In a flat build, this is
    * entrypoint is given by the definitions, CONFIG_USER_ENTRYPOINT.  In
    * the protected build, however, we must get the address of the
@@ -244,31 +254,17 @@ static inline void nx_start_application(void)
 
 #ifdef CONFIG_BUILD_PROTECTED
   DEBUGASSERT(USERSPACE->us_entrypoint != NULL);
-  pid = nxtask_create("init", CONFIG_USERMAIN_PRIORITY,
+  ret = nxtask_create("init", CONFIG_USERMAIN_PRIORITY,
-                      CONFIG_USERMAIN_STACKSIZE, USERSPACE->us_entrypoint,
-                      (FAR char * const *)NULL);
-#else
-  pid = nxtask_create("init", CONFIG_USERMAIN_PRIORITY,
                       CONFIG_USERMAIN_STACKSIZE,
-                      (main_t)CONFIG_USER_ENTRYPOINT,
+                      USERSPACE->us_entrypoint, argv);
-                      (FAR char * const *)NULL);
+#else
+  ret = nxtask_create("init", CONFIG_USERMAIN_PRIORITY,
+                      CONFIG_USERMAIN_STACKSIZE,
+                      (main_t)CONFIG_USER_ENTRYPOINT, argv);
 #endif
-  DEBUGASSERT(pid > 0);
+  DEBUGASSERT(ret > 0);
-  UNUSED(pid);
-}
 
 #elif defined(CONFIG_INIT_FILEPATH)
-static inline void nx_start_application(void)
-{
-  int ret;
-
-#ifdef CONFIG_BOARD_LATE_INITIALIZE
-  /* Perform any last-minute, board-specific initialization, if so
-   * configured.
-   */
-
-  board_late_initialize();
-#endif
 
 #ifdef CONFIG_INIT_MOUNT
   /* Mount the file system containing the init program. */
@@ -277,7 +273,6 @@ static inline void nx_start_application(void)
               CONFIG_INIT_MOUNT_FSTYPE, CONFIG_INIT_MOUNT_FLAGS,
               CONFIG_INIT_MOUNT_DATA);
   DEBUGASSERT(ret >= 0);
-  UNUSED(ret);
 #endif
 
   /* Start the application initialization program from a program in a
@@ -287,20 +282,14 @@ static inline void nx_start_application(void)
 
   sinfo("Starting init task: %s\n", CONFIG_USER_INITPATH);
 
-  ret = exec(CONFIG_USER_INITPATH, NULL, CONFIG_INIT_SYMTAB,
+  ret = exec(CONFIG_USER_INITPATH, argv,
-             CONFIG_INIT_NEXPORTS);
+             CONFIG_INIT_SYMTAB, CONFIG_INIT_NEXPORTS);
   DEBUGASSERT(ret >= 0);
+#endif
+
   UNUSED(ret);
 }
 
-#elif defined(CONFIG_INIT_NONE)
-#  define nx_start_application()
-
-#else
-#  error "Cannot start initialization thread"
-
-#endif
-
 /****************************************************************************
  * Name: nx_start_task
  *

tools/cfgdefine.c

@@ -63,27 +63,28 @@ static const char *dequote_list[] =
 {
   /* NuttX */
 
-  "CONFIG_USER_ENTRYPOINT",               /* Name of entry point function */
+  "CONFIG_DEBUG_OPTLEVEL",                /* Custom debug level */
-  "CONFIG_EXECFUNCS_SYMTAB_ARRAY",        /* Symbol table array used by exec[l|v] */
   "CONFIG_EXECFUNCS_NSYMBOLS_VAR",        /* Variable holding number of symbols in the table */
+  "CONFIG_EXECFUNCS_SYMTAB_ARRAY",        /* Symbol table array used by exec[l|v] */
+  "CONFIG_INIT_ARGS",                     /* Argument list of entry point */
+  "CONFIG_INIT_SYMTAB",                   /* Global symbol table */
+  "CONFIG_INIT_NEXPORTS",                 /* Global symbol table size */
   "CONFIG_MODLIB_SYMTAB_ARRAY",           /* Symbol table array used by modlib functions */
   "CONFIG_MODLIB_NSYMBOLS_VAR",           /* Variable holding number of symbols in the table */
   "CONFIG_PASS1_BUILDIR",                 /* Pass1 build directory */
   "CONFIG_PASS1_TARGET",                  /* Pass1 build target */
   "CONFIG_PASS1_OBJECT",                  /* Pass1 build object */
-  "CONFIG_DEBUG_OPTLEVEL",                /* Custom debug level */
+  "CONFIG_USER_ENTRYPOINT",               /* Name of entry point function */
-  "CONFIG_INIT_SYMTAB",                   /* Global symbol table */
-  "CONFIG_INIT_NEXPORTS",                 /* Global symbol table size */
 
   /* NxWidgets/NxWM */
 
   "CONFIG_NXWM_BACKGROUND_IMAGE",         /* Name of bitmap image class */
-  "CONFIG_NXWM_STOP_BITMAP",              /* Name of bitmap image class */
-  "CONFIG_NXWM_MINIMIZE_BITMAP",          /* Name of bitmap image class */
-  "CONFIG_NXWM_STARTWINDOW_ICON",         /* Name of bitmap image class */
-  "CONFIG_NXWM_NXTERM_ICON",              /* Name of bitmap image class */
   "CONFIG_NXWM_CALIBRATION_ICON",         /* Name of bitmap image class */
   "CONFIG_NXWM_HEXCALCULATOR_ICON",       /* Name of bitmap image class */
+  "CONFIG_NXWM_MINIMIZE_BITMAP",          /* Name of bitmap image class */
+  "CONFIG_NXWM_NXTERM_ICON",              /* Name of bitmap image class */
+  "CONFIG_NXWM_STARTWINDOW_ICON",         /* Name of bitmap image class */
+  "CONFIG_NXWM_STOP_BITMAP",              /* Name of bitmap image class */
 
   /* apps/ definitions */