projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 6b8f5ad1 PT |
2 | /* |
| 3 | * Copyright 2000-2009 | |
| 4 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
| 6b8f5ad1 PT |
5 | */ |
| 6 | ||
| 7 | #include <common.h> | |
| 8 | #include <command.h> | |
| 9 | ||
| 09140113 SG |
10 | static int do_help(struct cmd_tbl *cmdtp, int flag, int argc, |
| 11 | char *const argv[]) | |
| 6b8f5ad1 | 12 | { |
| f8bb6964 | 13 | #ifdef CONFIG_CMDLINE |
| 09140113 SG |
14 | struct cmd_tbl *start = ll_entry_start(struct cmd_tbl, cmd); |
| 15 | const int len = ll_entry_count(struct cmd_tbl, cmd); | |
| 6c7c946c | 16 | return _do_help(start, len, cmdtp, flag, argc, argv); |
| f8bb6964 SG |
17 | #else |
| 18 | return 0; | |
| 19 | #endif | |
| 6b8f5ad1 PT |
20 | } |
| 21 | ||
| 22 | U_BOOT_CMD( | |
| 23 | help, CONFIG_SYS_MAXARGS, 1, do_help, | |
| 4e1ca93b PT |
24 | "print command description/usage", |
| 25 | "\n" | |
| 26 | " - print brief description of all commands\n" | |
| 27 | "help command ...\n" | |
| 28 | " - print detailed usage of 'command'" | |
| 6b8f5ad1 PT |
29 | ); |
| 30 | ||
| 81b11588 | 31 | #ifdef CONFIG_CMDLINE |
| 3616218b TR |
32 | /* |
| 33 | * This does not use the U_BOOT_CMD macro as ? can't be used in symbol names | |
| 34 | * nor can we rely on the CONFIG_SYS_LONGHELP helper macro | |
| 35 | */ | |
| 09140113 | 36 | ll_entry_declare(struct cmd_tbl, question_mark, cmd) = { |
| 80a48dd4 | 37 | "?", CONFIG_SYS_MAXARGS, cmd_always_repeatable, do_help, |
| 6b8f5ad1 | 38 | "alias for 'help'", |
| 4e1ca93b | 39 | #ifdef CONFIG_SYS_LONGHELP |
| 6b8f5ad1 | 40 | "" |
| 6b8f5ad1 | 41 | #endif /* CONFIG_SYS_LONGHELP */ |
| 4e1ca93b | 42 | }; |
| 81b11588 | 43 | #endif |