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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <exception.h>
#include <libpayload.h>
#include <arch/apic.h>
unsigned long loader_eax; /**< The value of EAX passed from the loader */
unsigned long loader_ebx; /**< The value of EBX passed from the loader */
int main_argc; /**< The argc value to pass to main() */
/** The argv value to pass to main() */
char *main_argv[MAX_ARGC_COUNT];
/**
* This is our C entry function - set up the system
* and jump into the payload entry point.
*/
int start_main(void);
int start_main(void)
{
extern int main(int argc, char **argv);
/* Gather system information. */
lib_get_sysinfo();
/* Optionally set up the consoles. */
#if !CONFIG(LP_SKIP_CONSOLE_INIT)
console_init();
#endif
exception_init();
if (CONFIG(LP_ENABLE_APIC)) {
apic_init();
enable_interrupts();
}
/*
* Any other system init that has to happen before the
* user gets control goes here.
*/
/*
* Go to the entry point.
* In the future we may care about the return value.
*/
/*
* Returning from main() will go to the _leave function to return
* us to the original context.
*/
return main(main_argc, (main_argc != 0) ? main_argv : NULL);
}
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