/*
   * Copyright 2000-2009
   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #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'"
  );
  
  /* 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,	1,	do_help,
  	"alias for 'help'",
  #ifdef  CONFIG_SYS_LONGHELP
  	""
  #endif /* CONFIG_SYS_LONGHELP */
  };