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/*
* Carsten Langgaard, carstenl@mips.com
* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
*
* ########################################################################
*
* This program is free software; you can distribute it and/or modify it
* under the terms of the GNU General Public License (Version 2) as
* published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*
* ########################################################################
*
* Kernel command line creation using the prom monitor (YAMON) argc/argv.
*
*/
#include <linux/config.h>
#include <linux/init.h>
#include <linux/string.h>
#include <asm/bootinfo.h>
/*#define DEBUG_CMDLINE*/
extern int prom_argc;
extern int *_prom_argv;
/*
* A 32-bit PROM pass arguments and environment as 32-bit pointer.
* This macro take care of sign extension.
*/
#define prom_argv(index) ((char *)(((int *)(int)_prom_argv)[(index)]))
char arcs_cmdline[CL_SIZE];
char * __init prom_getcmdline(void)
{
return &(arcs_cmdline[0]);
}
void __init prom_init_cmdline(void)
{
char *cp;
int actr;
actr = 1; /* Always ignore argv[0] */
cp = &(arcs_cmdline[0]);
while(actr < prom_argc) {
strcpy(cp, prom_argv(actr));
cp += strlen(prom_argv(actr));
*cp++ = ' ';
actr++;
}
if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */
--cp;
*cp = '\0';
#ifdef DEBUG_CMDLINE
prom_printf("prom_init_cmdline: %s\n", &(arcs_cmdline[0]));
#endif
}
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