87d58298fd
* util/i386/pc/grub-mkimage.c: Ungettextize grub_util_info() strings.
* util/i386/pc/grub-setup.c: Likewise.
442 lines
12 KiB
C
442 lines
12 KiB
C
/* grub-mkimage.c - make a bootable image */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <grub/types.h>
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#include <grub/machine/boot.h>
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#include <grub/machine/kernel.h>
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#include <grub/machine/memory.h>
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#include <grub/i18n.h>
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#include <grub/kernel.h>
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#include <grub/disk.h>
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#include <grub/util/misc.h>
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#include <grub/util/resolve.h>
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#include <grub/misc.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#define _GNU_SOURCE 1
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#include <getopt.h>
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#include "progname.h"
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#ifdef ENABLE_LZMA
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#include <grub/lib/LzmaEnc.h>
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static void *SzAlloc(void *p, size_t size) { p = p; return xmalloc(size); }
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static void SzFree(void *p, void *address) { p = p; free(address); }
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static ISzAlloc g_Alloc = { SzAlloc, SzFree };
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static void
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compress_kernel (char *kernel_img, size_t kernel_size,
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char **core_img, size_t *core_size)
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{
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CLzmaEncProps props;
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unsigned char out_props[5];
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size_t out_props_size = 5;
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LzmaEncProps_Init(&props);
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props.dictSize = 1 << 16;
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props.lc = 3;
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props.lp = 0;
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props.pb = 2;
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props.numThreads = 1;
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if (kernel_size < GRUB_KERNEL_MACHINE_RAW_SIZE)
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grub_util_error (_("the core image is too small"));
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*core_img = xmalloc (kernel_size);
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memcpy (*core_img, kernel_img, GRUB_KERNEL_MACHINE_RAW_SIZE);
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*core_size = kernel_size - GRUB_KERNEL_MACHINE_RAW_SIZE;
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if (LzmaEncode((unsigned char *) *core_img + GRUB_KERNEL_MACHINE_RAW_SIZE,
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core_size,
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(unsigned char *) kernel_img + GRUB_KERNEL_MACHINE_RAW_SIZE,
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kernel_size - GRUB_KERNEL_MACHINE_RAW_SIZE,
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&props, out_props, &out_props_size,
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0, NULL, &g_Alloc, &g_Alloc) != SZ_OK)
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grub_util_error (_("cannot compress the kernel image"));
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*core_size += GRUB_KERNEL_MACHINE_RAW_SIZE;
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}
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#else /* No lzma compression */
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static void
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compress_kernel (char *kernel_img, size_t kernel_size,
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char **core_img, size_t *core_size)
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{
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*core_img = xmalloc (kernel_size);
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memcpy (*core_img, kernel_img, kernel_size);
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*core_size = kernel_size;
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}
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#endif /* No lzma compression */
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static void
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generate_image (const char *dir, char *prefix, FILE *out, char *mods[],
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char *memdisk_path, char *config_path)
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{
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char *kernel_img, *boot_img, *core_img;
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size_t kernel_size, boot_size, total_module_size, core_size;
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size_t memdisk_size = 0, config_size = 0;
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char *kernel_path, *boot_path;
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size_t offset;
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struct grub_util_path_list *path_list, *p, *next;
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struct grub_module_info *modinfo;
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path_list = grub_util_resolve_dependencies (dir, "moddep.lst", mods);
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kernel_path = grub_util_get_path (dir, "kernel.img");
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kernel_size = grub_util_get_image_size (kernel_path);
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total_module_size = sizeof (struct grub_module_info);
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if (memdisk_path)
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{
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memdisk_size = ALIGN_UP(grub_util_get_image_size (memdisk_path), 512);
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grub_util_info ("the size of memory disk is 0x%x", memdisk_size);
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total_module_size += memdisk_size + sizeof (struct grub_module_header);
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}
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if (config_path)
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{
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config_size = grub_util_get_image_size (config_path) + 1;
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grub_util_info ("the size of config file is 0x%x", config_size);
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total_module_size += config_size + sizeof (struct grub_module_header);
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}
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for (p = path_list; p; p = p->next)
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total_module_size += (grub_util_get_image_size (p->name)
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+ sizeof (struct grub_module_header));
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grub_util_info ("the total module size is 0x%x", total_module_size);
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kernel_img = xmalloc (kernel_size + total_module_size);
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grub_util_load_image (kernel_path, kernel_img);
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if (GRUB_KERNEL_MACHINE_PREFIX + strlen (prefix) + 1 > GRUB_KERNEL_MACHINE_DATA_END)
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grub_util_error (_("prefix is too long"));
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strcpy (kernel_img + GRUB_KERNEL_MACHINE_PREFIX, prefix);
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/* Fill in the grub_module_info structure. */
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modinfo = (struct grub_module_info *) (kernel_img + kernel_size);
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memset (modinfo, 0, sizeof (struct grub_module_info));
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modinfo->magic = GRUB_MODULE_MAGIC;
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modinfo->offset = sizeof (struct grub_module_info);
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modinfo->size = total_module_size;
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offset = kernel_size + sizeof (struct grub_module_info);
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for (p = path_list; p; p = p->next)
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{
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struct grub_module_header *header;
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size_t mod_size;
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mod_size = grub_util_get_image_size (p->name);
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header = (struct grub_module_header *) (kernel_img + offset);
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memset (header, 0, sizeof (struct grub_module_header));
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header->type = OBJ_TYPE_ELF;
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header->size = grub_host_to_target32 (mod_size + sizeof (*header));
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offset += sizeof (*header);
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grub_util_load_image (p->name, kernel_img + offset);
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offset += mod_size;
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}
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if (memdisk_path)
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{
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struct grub_module_header *header;
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header = (struct grub_module_header *) (kernel_img + offset);
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memset (header, 0, sizeof (struct grub_module_header));
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header->type = OBJ_TYPE_MEMDISK;
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header->size = grub_host_to_target32 (memdisk_size + sizeof (*header));
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offset += sizeof (*header);
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grub_util_load_image (memdisk_path, kernel_img + offset);
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offset += memdisk_size;
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}
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if (config_path)
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{
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struct grub_module_header *header;
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header = (struct grub_module_header *) (kernel_img + offset);
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memset (header, 0, sizeof (struct grub_module_header));
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header->type = OBJ_TYPE_CONFIG;
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header->size = grub_host_to_target32 (config_size + sizeof (*header));
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offset += sizeof (*header);
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grub_util_load_image (config_path, kernel_img + offset);
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offset += config_size;
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*(kernel_img + offset - 1) = 0;
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}
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grub_util_info ("kernel_img=%p, kernel_size=0x%x", kernel_img, kernel_size);
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compress_kernel (kernel_img, kernel_size + total_module_size,
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&core_img, &core_size);
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grub_util_info ("the core size is 0x%x", core_size);
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#if defined(GRUB_MACHINE_PCBIOS)
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{
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unsigned num;
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num = ((core_size + GRUB_DISK_SECTOR_SIZE - 1) >> GRUB_DISK_SECTOR_BITS);
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if (num > 0xffff)
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grub_util_error (_("the core image is too big"));
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boot_path = grub_util_get_path (dir, "diskboot.img");
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boot_size = grub_util_get_image_size (boot_path);
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if (boot_size != GRUB_DISK_SECTOR_SIZE)
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grub_util_error (_("diskboot.img size must be %u bytes"), GRUB_DISK_SECTOR_SIZE);
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boot_img = grub_util_read_image (boot_path);
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/* i386 is a little endian architecture. */
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*((grub_uint16_t *) (boot_img + GRUB_DISK_SECTOR_SIZE
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- GRUB_BOOT_MACHINE_LIST_SIZE + 8))
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= grub_cpu_to_le16 (num);
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grub_util_write_image (boot_img, boot_size, out);
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free (boot_img);
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free (boot_path);
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}
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#elif defined(GRUB_MACHINE_QEMU)
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{
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char *rom_img;
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size_t rom_size;
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boot_path = grub_util_get_path (dir, "boot.img");
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boot_size = grub_util_get_image_size (boot_path);
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boot_img = grub_util_read_image (boot_path);
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/* Rom sizes must be 64k-aligned. */
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rom_size = ALIGN_UP (core_size + boot_size, 64 * 1024);
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rom_img = xmalloc (rom_size);
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memset (rom_img, 0, rom_size);
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*((grub_int32_t *) (core_img + GRUB_KERNEL_MACHINE_CORE_ENTRY_ADDR))
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= grub_cpu_to_le32 ((grub_uint32_t) -rom_size);
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memcpy (rom_img, core_img, core_size);
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*((grub_int32_t *) (boot_img + GRUB_BOOT_MACHINE_CORE_ENTRY_ADDR))
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= grub_cpu_to_le32 ((grub_uint32_t) -rom_size);
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memcpy (rom_img + rom_size - boot_size, boot_img, boot_size);
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free (core_img);
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core_img = rom_img;
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core_size = rom_size;
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free (boot_img);
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free (boot_path);
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}
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#endif
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#ifdef GRUB_KERNEL_MACHINE_TOTAL_MODULE_SIZE
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*((grub_uint32_t *) (core_img + GRUB_KERNEL_MACHINE_TOTAL_MODULE_SIZE))
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= grub_cpu_to_le32 (total_module_size);
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#endif
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*((grub_uint32_t *) (core_img + GRUB_KERNEL_MACHINE_KERNEL_IMAGE_SIZE))
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= grub_cpu_to_le32 (kernel_size);
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#ifdef GRUB_KERNEL_MACHINE_COMPRESSED_SIZE
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*((grub_uint32_t *) (core_img + GRUB_KERNEL_MACHINE_COMPRESSED_SIZE))
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= grub_cpu_to_le32 (core_size - GRUB_KERNEL_MACHINE_RAW_SIZE);
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#endif
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#if defined(GRUB_KERNEL_MACHINE_INSTALL_DOS_PART) && defined(GRUB_KERNEL_MACHINE_INSTALL_BSD_PART)
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/* If we included a drive in our prefix, let GRUB know it doesn't have to
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prepend the drive told by BIOS. */
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if (prefix[0] == '(')
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{
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*((grub_int32_t *) (core_img + GRUB_KERNEL_MACHINE_INSTALL_DOS_PART))
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= grub_cpu_to_le32 (-2);
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*((grub_int32_t *) (core_img + GRUB_KERNEL_MACHINE_INSTALL_BSD_PART))
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= grub_cpu_to_le32 (-2);
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}
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#endif
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#ifdef GRUB_MACHINE_PCBIOS
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if (GRUB_KERNEL_MACHINE_LINK_ADDR + core_size > GRUB_MEMORY_MACHINE_UPPER)
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grub_util_error (_("Core image is too big (%p > %p)\n"),
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GRUB_KERNEL_MACHINE_LINK_ADDR + core_size, GRUB_MEMORY_MACHINE_UPPER);
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#endif
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grub_util_write_image (core_img, core_size, out);
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free (kernel_img);
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free (core_img);
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free (kernel_path);
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while (path_list)
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{
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next = path_list->next;
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free ((void *) path_list->name);
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free (path_list);
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path_list = next;
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}
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}
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static struct option options[] =
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{
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{"directory", required_argument, 0, 'd'},
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{"prefix", required_argument, 0, 'p'},
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{"memdisk", required_argument, 0, 'm'},
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{"config", required_argument, 0, 'c'},
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{"output", required_argument, 0, 'o'},
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{"help", no_argument, 0, 'h'},
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{"version", no_argument, 0, 'V'},
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{"verbose", no_argument, 0, 'v'},
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{0, 0, 0, 0}
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};
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static void
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usage (int status)
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{
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if (status)
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fprintf (stderr, _("Try ``%s --help'' for more information.\n"), program_name);
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else
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printf (_("\
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Usage: grub-mkimage [OPTION]... [MODULES]\n\
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\n\
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Make a bootable image of GRUB.\n\
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\n\
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-d, --directory=DIR use images and modules under DIR [default=%s]\n\
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-p, --prefix=DIR set grub_prefix directory [default=%s]\n\
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-m, --memdisk=FILE embed FILE as a memdisk image\n\
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-c, --config=FILE embed FILE as boot config\n\
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-o, --output=FILE output a generated image to FILE [default=stdout]\n\
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-h, --help display this message and exit\n\
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-V, --version print version information and exit\n\
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-v, --verbose print verbose messages\n\
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\n\
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Report bugs to <%s>.\n\
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"), GRUB_LIBDIR, DEFAULT_DIRECTORY, PACKAGE_BUGREPORT);
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exit (status);
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}
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int
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main (int argc, char *argv[])
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{
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char *output = NULL;
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char *dir = NULL;
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char *prefix = NULL;
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char *memdisk = NULL;
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char *config = NULL;
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FILE *fp = stdout;
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set_program_name (argv[0]);
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setlocale (LC_ALL, "");
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bindtextdomain (PACKAGE, LOCALEDIR);
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textdomain (PACKAGE);
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while (1)
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{
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int c = getopt_long (argc, argv, "d:p:m:c:o:hVv", options, 0);
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if (c == -1)
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break;
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else
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switch (c)
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{
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case 'o':
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if (output)
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free (output);
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output = xstrdup (optarg);
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break;
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case 'd':
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if (dir)
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free (dir);
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dir = xstrdup (optarg);
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break;
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case 'm':
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if (memdisk)
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free (memdisk);
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memdisk = xstrdup (optarg);
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if (prefix)
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free (prefix);
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prefix = xstrdup ("(memdisk)/boot/grub");
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break;
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case 'c':
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if (config)
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free (config);
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config = xstrdup (optarg);
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break;
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case 'h':
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usage (0);
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break;
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case 'p':
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if (prefix)
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free (prefix);
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prefix = xstrdup (optarg);
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break;
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case 'V':
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printf ("grub-mkimage (%s) %s\n", PACKAGE_NAME, PACKAGE_VERSION);
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return 0;
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case 'v':
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verbosity++;
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break;
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default:
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usage (1);
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break;
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}
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}
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if (output)
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{
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fp = fopen (output, "wb");
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if (! fp)
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grub_util_error (_("cannot open %s"), output);
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free (output);
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}
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generate_image (dir ? : GRUB_LIBDIR, prefix ? : DEFAULT_DIRECTORY, fp,
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argv + optind, memdisk, config);
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fclose (fp);
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if (dir)
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free (dir);
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return 0;
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}
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