u-boot/cmd/help.c
Simon Glass f8bb696435 Drop command-processing code when CONFIG_CMDLINE is disabled
Command parsing and processing code is not needed when the command line is
disabled. Remove this code in that case.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-01 17:17:40 -04:00

38 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 */
};