59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
|
/*
|
||
|
|
* Created by: Jason Wessel <jason.wessel@windriver.com>
|
||
|
|
*
|
||
|
|
* Copyright (c) 2010 Wind River Systems, Inc. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* This file is licensed under the terms of the GNU General Public
|
||
|
|
* License version 2. This program is licensed "as is" without any
|
||
|
|
* warranty of any kind, whether express or implied.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/kdb.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* All kdb shell command call backs receive argc and argv, where
|
||
|
|
* argv[0] is the command the end user typed
|
||
|
|
*/
|
||
|
|
static int kdb_hello_cmd(int argc, const char **argv)
|
||
|
|
{
|
||
|
|
if (argc > 1)
|
||
|
|
return KDB_ARGCOUNT;
|
||
|
|
|
||
|
|
if (argc)
|
||
|
|
kdb_printf("Hello %s.\n", argv[1]);
|
||
|
|
else
|
||
|
|
kdb_printf("Hello world!\n");
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static kdbtab_t hello_cmd = {
|
||
|
|
.name = "hello",
|
||
|
|
.func = kdb_hello_cmd,
|
||
|
|
.usage = "[string]",
|
||
|
|
.help = "Say Hello World or Hello [string]",
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init kdb_hello_cmd_init(void)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* Registration of a dynamically added kdb command is done with
|
||
|
|
* kdb_register().
|
||
|
|
*/
|
||
|
|
kdb_register(&hello_cmd);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __exit kdb_hello_cmd_exit(void)
|
||
|
|
{
|
||
|
|
kdb_unregister(&hello_cmd);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(kdb_hello_cmd_init);
|
||
|
|
module_exit(kdb_hello_cmd_exit);
|
||
|
|
|
||
|
|
MODULE_AUTHOR("WindRiver");
|
||
|
|
MODULE_DESCRIPTION("KDB example to add a hello command");
|
||
|
|
MODULE_LICENSE("GPL");
|