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/*
* kexec-zImage-sh.c - kexec zImage loader for the SH
* Copyright (C) 2005 kogiidena@eggplant.ddo.jp
*
* This source code is licensed under the GNU General Public License,
* Version 2. See the file COPYING for more details.
*/
#define _GNU_SOURCE
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <getopt.h>
#include <elf.h>
#include <boot/elf_boot.h>
#include <ip_checksum.h>
#include "../../kexec.h"
#include "../../kexec-elf.h"
#include <arch/options.h>
#include "kexec-sh.h"
static const int probe_debug = 0;
/*
* zImage_sh_probe - sanity check the elf image
*
* Make sure that the file image has a reasonable chance of working.
*/
int zImage_sh_probe(const char *buf, off_t len)
{
if (memcmp(&buf[0x202], "HdrS", 4) != 0) {
fprintf(stderr, "Not a zImage\n");
return -1;
}
return 0;
}
void zImage_sh_usage(void)
{
printf(
" --append=STRING Set the kernel command line to STRING.\n"
" --empty-zero=ADDRESS Set the kernel top ADDRESS. \n\n");
}
int zImage_sh_load(int argc, char **argv, const char *buf, off_t len,
struct kexec_info *info)
{
char *command_line;
int opt;
unsigned long empty_zero, area;
unsigned char *param;
unsigned long *paraml;
static const struct option options[] = {
KEXEC_ARCH_OPTIONS
{0, 0, 0, 0},
};
static const char short_options[] = KEXEC_ARCH_OPT_STR "";
command_line = 0;
empty_zero = get_empty_zero(NULL);
while ((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) {
switch (opt) {
default:
/* Ignore core options */
if (opt < OPT_ARCH_MAX) {
break;
}
case '?':
usage();
return -1;
case OPT_APPEND:
command_line = optarg;
break;
case OPT_EMPTYZERO:
empty_zero = get_empty_zero(optarg);
break;
}
}
param = xmalloc(4096);
memset(param, 0, 4096);
area = empty_zero & 0x1c000000;
if (!command_line) {
command_line = get_append();
}
strncpy(¶m[256], command_line, strlen(command_line));
paraml = (unsigned long *)param;
// paraml[0] = 1; // readonly flag is set as default
add_segment(info, param, 4096, 0x80000000 | empty_zero, 4096);
add_segment(info, buf, len, (area | 0x80210000), len);
/* For now we don't have arguments to pass :( */
info->entry = (void *)(0x80210000 | area);
return 0;
}
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