grub/util/i386/pc/grub-mkimage.c
jeroen 8c8cc20511 2004-03-14 Jeroen Dekkers <jeroen@dekkers.cx>
* Makefile.in: Update copyright.
	* genmodsrc.sh: Likewise.
	* gensymlist.sh: Likewise.
	* term/i386/pc/vga.c: Indent correctly.

	* util/i386/pc/pupa-mkimage.c (usage): Use PACKAGE_BUGREPORT as
	bugreporting address.
	* util/i386/pc/pupa-setup.c (usage): Likewise,
	(main): Call pupa_ext2_init and pupa_ext2_fini.

	* fs/fat.c (log2): Renamed to ...
	(fat_log2): ... this.
	All callers changed.
	* kern/misc.c (memcpy): Alias to pupa_memmove.
	* loader/i386/pc/multiboot.c (pupa_rescue_cmd_multiboot): Fix
	lvalue cast.
	* util/console.c (pupa_ncurses_fini): Return 0.

	* util/i386/pc/biosdisk.c (pupa_util_biosdisk_open)[__linux__]:
	Move fail label here.
	[__GNU__]: Don't warn when using stat.
	(open_device)[!__linux__]: Check if FD < 0 instead of !FD.
	(pupa_util_biosdisk_get_pupa_dev)[__GNU__]: Change type of N to
	long int. Use strtol instead of strtoul.
2004-03-14 17:48:25 +00:00

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/* pupa-mkimage.c - make a bootable image */
/*
* PUPA -- Preliminary Universal Programming Architecture for GRUB
* Copyright (C) 2002,2003,2004 Free Software Foundation, Inc.
*
* PUPA is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with PUPA; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <config.h>
#include <pupa/types.h>
#include <pupa/machine/boot.h>
#include <pupa/machine/kernel.h>
#include <pupa/kernel.h>
#include <pupa/disk.h>
#include <pupa/util/misc.h>
#include <pupa/util/resolve.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#define _GNU_SOURCE 1
#include <getopt.h>
#include <lzo1x.h>
static void
compress_kernel (char *kernel_img, size_t kernel_size,
char **core_img, size_t *core_size)
{
lzo_uint size;
char *wrkmem;
pupa_util_info ("kernel_img=%p, kernel_size=0x%x", kernel_img, kernel_size);
if (kernel_size < PUPA_KERNEL_MACHINE_RAW_SIZE)
pupa_util_error ("the core image is too small");
if (lzo_init () != LZO_E_OK)
pupa_util_error ("cannot initialize LZO");
*core_img = xmalloc (kernel_size + kernel_size / 64 + 16 + 3);
wrkmem = xmalloc (LZO1X_999_MEM_COMPRESS);
memcpy (*core_img, kernel_img, PUPA_KERNEL_MACHINE_RAW_SIZE);
pupa_util_info ("compressing the core image");
if (lzo1x_999_compress (kernel_img + PUPA_KERNEL_MACHINE_RAW_SIZE,
kernel_size - PUPA_KERNEL_MACHINE_RAW_SIZE,
*core_img + PUPA_KERNEL_MACHINE_RAW_SIZE,
&size, wrkmem)
!= LZO_E_OK)
pupa_util_error ("cannot compress the kernel image");
free (wrkmem);
*core_size = (size_t) size + PUPA_KERNEL_MACHINE_RAW_SIZE;
}
static void
generate_image (const char *dir, FILE *out, char *mods[])
{
pupa_addr_t module_addr = 0;
char *kernel_img, *boot_img, *core_img;
size_t kernel_size, boot_size, total_module_size, core_size;
char *kernel_path, *boot_path;
unsigned num;
size_t offset;
struct pupa_util_path_list *path_list, *p, *next;
path_list = pupa_util_resolve_dependencies (dir, "moddep.lst", mods);
kernel_path = pupa_util_get_path (dir, "kernel.img");
kernel_size = pupa_util_get_image_size (kernel_path);
total_module_size = 0;
for (p = path_list; p; p = p->next)
total_module_size += (pupa_util_get_image_size (p->name)
+ sizeof (struct pupa_module_header));
pupa_util_info ("the total module size is 0x%x", total_module_size);
kernel_img = xmalloc (kernel_size + total_module_size);
pupa_util_load_image (kernel_path, kernel_img);
offset = kernel_size;
for (p = path_list; p; p = p->next)
{
struct pupa_module_header *header;
size_t mod_size;
mod_size = pupa_util_get_image_size (p->name);
header = (struct pupa_module_header *) (kernel_img + offset);
header->offset = pupa_cpu_to_le32 (sizeof (*header));
header->size = pupa_cpu_to_le32 (mod_size + sizeof (*header));
pupa_util_load_image (p->name, kernel_img + offset + sizeof (*header));
offset += sizeof (*header) + mod_size;
}
compress_kernel (kernel_img, kernel_size + total_module_size,
&core_img, &core_size);
pupa_util_info ("the core size is 0x%x", core_size);
num = ((core_size + PUPA_DISK_SECTOR_SIZE - 1) >> PUPA_DISK_SECTOR_BITS);
if (num > 0xffff)
pupa_util_error ("the core image is too big");
boot_path = pupa_util_get_path (dir, "diskboot.img");
boot_size = pupa_util_get_image_size (boot_path);
if (boot_size != PUPA_DISK_SECTOR_SIZE)
pupa_util_error ("diskboot.img is not one sector size");
boot_img = pupa_util_read_image (boot_path);
/* i386 is a little endian architecture. */
*((pupa_uint16_t *) (boot_img + PUPA_DISK_SECTOR_SIZE
- PUPA_BOOT_MACHINE_LIST_SIZE + 4))
= pupa_cpu_to_le16 (num);
pupa_util_write_image (boot_img, boot_size, out);
free (boot_img);
free (boot_path);
module_addr = (path_list
? (PUPA_BOOT_MACHINE_KERNEL_ADDR + PUPA_DISK_SECTOR_SIZE
+ kernel_size)
: 0);
pupa_util_info ("the first module address is 0x%x", module_addr);
*((pupa_uint32_t *) (core_img + PUPA_KERNEL_MACHINE_TOTAL_MODULE_SIZE))
= pupa_cpu_to_le32 (total_module_size);
*((pupa_uint32_t *) (core_img + PUPA_KERNEL_MACHINE_KERNEL_IMAGE_SIZE))
= pupa_cpu_to_le32 (kernel_size);
*((pupa_uint32_t *) (core_img + PUPA_KERNEL_MACHINE_COMPRESSED_SIZE))
= pupa_cpu_to_le32 (core_size - PUPA_KERNEL_MACHINE_RAW_SIZE);
pupa_util_write_image (core_img, core_size, out);
free (kernel_img);
free (core_img);
free (kernel_path);
while (path_list)
{
next = path_list->next;
free ((void *) path_list->name);
free (path_list);
path_list = next;
}
}
static struct option options[] =
{
{"directory", required_argument, 0, 'd'},
{"output", required_argument, 0, 'o'},
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
{"verbose", no_argument, 0, 'v'},
{0, 0, 0, 0}
};
static void
usage (int status)
{
if (status)
fprintf (stderr, "Try ``pupa-mkimage --help'' for more information.\n");
else
printf ("\
Usage: pupa-mkimage [OPTION]... [MODULES]\n\
\n\
Make a bootable image of PUPA.\n\
\n\
-d, --directory=DIR use images and modules under DIR [default=%s]\n\
-o, --output=FILE output a generated image to FILE [default=stdout]\n\
-h, --help display this message and exit\n\
-V, --version print version information and exit\n\
-v, --verbose print verbose messages\n\
\n\
Report bugs to <%s>.\n\
", PUPA_DATADIR, PACKAGE_BUGREPORT);
exit (status);
}
int
main (int argc, char *argv[])
{
char *output = 0;
char *dir = 0;
FILE *fp = stdout;
progname = "pupa-mkimage";
while (1)
{
int c = getopt_long (argc, argv, "d:o:hVv", options, 0);
if (c == -1)
break;
else
switch (c)
{
case 'o':
if (output)
free (output);
output = xstrdup (optarg);
break;
case 'd':
if (dir)
free (dir);
dir = xstrdup (optarg);
break;
case 'h':
usage (0);
break;
case 'V':
printf ("pupa-mkimage (%s) %s\n", PACKAGE_NAME, PACKAGE_VERSION);
return 0;
case 'v':
verbosity++;
break;
default:
usage (1);
break;
}
}
if (output)
{
fp = fopen (output, "wb");
if (! fp)
pupa_util_error ("cannot open %s", output);
}
generate_image (dir ? : PUPA_DATADIR, fp, argv + optind);
fclose (fp);
if (dir)
free (dir);
return 0;
}