blob: 48d6ef54952aa8105ade915b6e36b359c98bc717 [file] [log] [blame]
Jordan Crousef6145c32008-03-19 23:56:58 +00001/*
2 * This file is part of the libpayload project.
3 *
4 * Copyright (C) 2008 Advanced Micro Devices, Inc.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
Uwe Hermann14a3feb2008-03-20 20:46:44 +000030#include <libpayload.h>
Jordan Crousef6145c32008-03-19 23:56:58 +000031
Jordan Crouse20c9cf12008-10-20 16:51:43 +000032unsigned long loader_eax; /**< The value of EAX passed from the loader */
33unsigned long loader_ebx; /**< The value of EBX passed from the loader */
34
35unsigned int main_argc; /**< The argc value to pass to main() */
36
37/** The argv value to pass to main() */
38char *main_argv[MAX_ARGC_COUNT];
39
Uwe Hermann6a441bf2008-03-20 19:54:59 +000040/**
41 * This is our C entry function - set up the system
42 * and jump into the payload entry point.
43 */
Klaus Schnass2c6b33c2008-03-31 21:02:29 +000044void start_main(void)
Jordan Crousef6145c32008-03-19 23:56:58 +000045{
Jordan Crouse20c9cf12008-10-20 16:51:43 +000046 extern int main(int argc, char **argv);
Jordan Crousef6145c32008-03-19 23:56:58 +000047
Uwe Hermann6a441bf2008-03-20 19:54:59 +000048 /* Set up the consoles. */
Jordan Crousef6145c32008-03-19 23:56:58 +000049 console_init();
50
Uwe Hermann6a441bf2008-03-20 19:54:59 +000051 /* Gather system information. */
Jordan Crousef6145c32008-03-19 23:56:58 +000052 lib_get_sysinfo();
53
Uwe Hermann6a441bf2008-03-20 19:54:59 +000054 /*
55 * Any other system init that has to happen before the
56 * user gets control goes here.
57 */
Jordan Crousef6145c32008-03-19 23:56:58 +000058
Klaus Schnass2c6b33c2008-03-31 21:02:29 +000059 /*
60 * Go to the entry point.
61 * In the future we may care about the return value.
62 */
Jordan Crouse20c9cf12008-10-20 16:51:43 +000063
64 (void) main(main_argc, (main_argc != 0) ? main_argv : NULL);
Jordan Crousef6145c32008-03-19 23:56:58 +000065
Uwe Hermann6a441bf2008-03-20 19:54:59 +000066 /*
67 * Returning here will go to the _leave function to return
68 * us to the original context.
69 */
Jordan Crousef6145c32008-03-19 23:56:58 +000070}