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/*
* plex86: run multiple x86 operating systems concurrently
* Copyright (C) 1999-2000 The plex86 developers team
*
* rom.c: load a ROM image into VM memory.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "plex86.h"
#include "user.h"
int
load_rom(int argc, char *argv[])
{
char *address_p, *filename_p;
Bit32u address;
/*unsigned long bin_size; */
struct stat stat_buf;
int fileno;
unsigned char *image;
#define FILE_PARAM "file="
#define ADDRESS_PARAM "address="
if (argc != 2)
goto usage;
if ( !argv[0] || strncmp(argv[0], FILE_PARAM, strlen(FILE_PARAM)) )
goto usage;
filename_p = &argv[0][strlen(FILE_PARAM)];
if ( !argv[1] || strncmp(argv[1], ADDRESS_PARAM, strlen(ADDRESS_PARAM)) )
goto usage;
address_p = &argv[1][strlen(ADDRESS_PARAM)];
address = strtoul(address_p, NULL, 0);
fileno = open(filename_p, O_RDONLY);
if (fileno < 0) {
fprintf(stderr, "rom: open %s: %s\n", filename_p, strerror(errno));
return 1;
}
if (fstat(fileno, &stat_buf) != 0) {
fprintf(stderr, "rom: fstat %s: %s\n", filename_p, strerror(errno));
return 1;
}
fprintf(stderr, "ROM: loading image '%s' @ 0x%x (%u bytes)\n",
filename_p, address, (unsigned) stat_buf.st_size);
if ((image = (void *) malloc (stat_buf.st_size)) == NULL) {
perror("rom: malloc");
return 1;
}
if (read (fileno, image, stat_buf.st_size) != stat_buf.st_size) {
perror ("rom: read");
return 1;
}
close(fileno);
if (pluginWritePhyMem(address, stat_buf.st_size, image)) {
fprintf (stderr, "rom: trying to load beyond available VM memory.\n");
return 1;
}
free(image);
return 0;
usage:
fprintf(stderr, "usage: load-rom file=xyz address=xyz\n");
return 1;
}
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