39 lines
921 B
C
39 lines
921 B
C
/*
|
|
* 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",
|
|
"\n"
|
|
" - print brief description of all commands\n"
|
|
"help command ...\n"
|
|
" - 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 */
|
|
};
|