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/*
* plex86: run multiple x86 operating systems concurrently
* Copyright (C) 1999-2000 The plex86 developers team
*
* elf.c: load an ELF kernel 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 "bios.h"
#include "multiboot.h"
plugin_t *bios_plugin;
int
plugin_init(plugin_t *plugin, int argc, char *argv[])
{
char *address_p, *filename_p, *stack_p, *hack_p, *rd_p;
Bit32u address, stack;
Bit32u rd_address, rd_size;
unsigned i;
unsigned hack_linux;
#define FILE_PARAM "file="
#define ADDRESS_PARAM "address="
#define STACK_PARAM "stack="
#define HACK_PARAM "hack="
#define RD_PARAM "rd="
bios_plugin = plugin;
/* Get the file= parameter */
i = 0;
if ( !argv[i] || strncmp(argv[i], FILE_PARAM, strlen(FILE_PARAM)) )
goto usage;
filename_p = &argv[i][strlen(FILE_PARAM)];
i++;
/********************************/
/* Get the [address=] parameter */
/********************************/
if ( !argv[i] || strncmp(argv[i], ADDRESS_PARAM, strlen(ADDRESS_PARAM)) ) {
address = -1; /* not given, assign max val as flag */
}
else {
address_p = &argv[i][strlen(ADDRESS_PARAM)];
address = strtoul(address_p, NULL, 0);
i++;
}
/******************************/
/* Get the [stack=] parameter */
/******************************/
if ( !argv[i] || strncmp(argv[i], STACK_PARAM, strlen(STACK_PARAM)) )
goto usage;
stack_p = &argv[i][strlen(STACK_PARAM)];
stack = strtoul(stack_p, NULL, 0);
i++;
/***************************************/
/* Get the [rd=address:path] parameter */
/***************************************/
if ( (i>=argc) || !argv[i] || strncmp(argv[i], RD_PARAM, strlen(RD_PARAM)) )
{
rd_address = 0xffffffff;
rd_size = 0;
}
else {
char *endptr;
rd_p = &argv[i][strlen(RD_PARAM)];
rd_address = strtoul(rd_p, &endptr, 0);
if (*endptr==':') {
endptr++;
rd_size = image_load(endptr, rd_address);
if (rd_size==0) {
fprintf(stderr, "loading of rd image '%s' failed.\n", endptr);
return 1;
}
}
else {
fprintf(stderr, "format of rd= parameter incorrect\n");
return 1;
}
i++;
}
/*******************************/
/* Get the [hack=os] parameter */
/*******************************/
hack_linux = 0;
if ( (i>=argc) || !argv[i] || strncmp(argv[i], HACK_PARAM, strlen(HACK_PARAM)) )
{
}
else {
hack_p = &argv[i][strlen(HACK_PARAM)];
if ( !strcmp(hack_p, "linux") ) {
load_linux_setup_params(rd_address, rd_size);
if (linux_hack()) {
fprintf(stderr, "linux_hack returns error.\n");
return 1;
}
hack_linux = 1;
}
else {
fprintf(stderr, "'hack=' parameter, unrecognized OS.\n");
return 1;
}
i++;
}
vm_conf.stack_address = stack;
if (bin_load(filename_p, address)) {
fprintf(stderr, "loading of kernel '%s' failed.\n", filename_p);
return 1;
}
bin_context(hack_linux);
return 0;
usage:
fprintf(stderr, "usage: plugin-elf file=path [address=num] stack=num\n");
return 1;
}
void
plugin_fini(void)
{
return;
}
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