// SPDX-License-Identifier: GPL-2.0+

  /*
   * Copyright 2000-2009
   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.

   */
  
  #include <common.h>
  #include <command.h>

  static int do_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])

  {

  #ifdef CONFIG_CMDLINE

  	cmd_tbl_t *start = ll_entry_start(cmd_tbl_t, cmd);
  	const int len = ll_entry_count(cmd_tbl_t, cmd);
  	return _do_help(start, len, cmdtp, flag, argc, argv);

  #else
  	return 0;
  #endif

  }
  
  U_BOOT_CMD(
  	help,	CONFIG_SYS_MAXARGS,	1,	do_help,

  	"print command description/usage",
  	"
  "
  	"	- print brief description of all commands
  "
  	"help command ...
  "
  	"	- print detailed usage of 'command'"

  );

  #ifdef CONFIG_CMDLINE

  /* This does not use the U_BOOT_CMD macro as ? can't be used in symbol names */

  ll_entry_declare(cmd_tbl_t, question_mark, cmd) = {

  	"?",	CONFIG_SYS_MAXARGS, cmd_always_repeatable,	do_help,

  	"alias for 'help'",

  #ifdef  CONFIG_SYS_LONGHELP

  	""

  #endif /* CONFIG_SYS_LONGHELP */

  };

  #endif