mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-01 00:49:43 +00:00
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/*
|
|
* (C) Copyright 2008-2011
|
|
* Graeme Russ, <graeme.russ@gmail.com>
|
|
*
|
|
* (C) Copyright 2002
|
|
* Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
|
|
*
|
|
* (C) Copyright 2002
|
|
* Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
|
|
*
|
|
* (C) Copyright 2002
|
|
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
|
* Marius Groeger <mgroeger@sysgo.de>
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <malloc.h>
|
|
#include <asm/u-boot-x86.h>
|
|
|
|
unsigned long do_go_exec(ulong (*entry)(int, char * const []),
|
|
int argc, char * const argv[])
|
|
{
|
|
unsigned long ret = 0;
|
|
char **argv_tmp;
|
|
|
|
/*
|
|
* x86 does not use a dedicated register to pass the pointer to
|
|
* the global_data, so it is instead passed as argv[-1]. By using
|
|
* argv[-1], the called 'Application' can use the contents of
|
|
* argv natively. However, to safely use argv[-1] a new copy of
|
|
* argv is needed with the extra element
|
|
*/
|
|
argv_tmp = malloc(sizeof(char *) * (argc + 1));
|
|
|
|
if (argv_tmp) {
|
|
argv_tmp[0] = (char *)gd;
|
|
|
|
memcpy(&argv_tmp[1], argv, (size_t)(sizeof(char *) * argc));
|
|
|
|
ret = (entry) (argc, &argv_tmp[1]);
|
|
free(argv_tmp);
|
|
}
|
|
|
|
return ret;
|
|
}
|