Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / common / cmd_help.c

diff --git a/qemu/roms/u-boot/common/cmd_help.c b/qemu/roms/u-boot/common/cmd_help.c
new file mode 100644 (file)
index 0000000..6ff494d
--- /dev/null
+++ b/qemu/roms/u-boot/common/cmd_help.c
@@ -0,0 +1,34 @@
+/*
+ * 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[])
+{
+       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);
+}
+
+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 */
+};