cmdline.c

来自「根据添加了fs2410平台的arch目录」· C语言 代码 · 共 55 行

/*
 * Carsten Langgaard, [e-mail]
 * Copyright (C) 1999,2000 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>

extern int prom_argc;
extern char **prom_argv;

char arcs_cmdline[COMMAND_LINE_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';
}