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grub/util/grub-mkimage.c
Vladimir 'phcoder' Serbinenko bbc5a342eb * util/grub-mkimage.c (generate_image): Unify diskboot.img size message.
2012-03-06 11:36:39 +01:00

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/* grub-mkimage.c - make a bootable image */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <grub/types.h>
#include <grub/elf.h>
#include <grub/aout.h>
#include <grub/i18n.h>
#include <grub/kernel.h>
#include <grub/disk.h>
#include <grub/emu/misc.h>
#include <grub/util/misc.h>
#include <grub/util/resolve.h>
#include <grub/misc.h>
#include <grub/offsets.h>
#include <grub/crypto.h>
#include <grub/dl.h>
#include <time.h>
#include <multiboot.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <grub/efi/pe32.h>
#define _GNU_SOURCE 1
#include <argp.h>
#include "progname.h"
#define ALIGN_ADDR(x) (ALIGN_UP((x), image_target->voidp_sizeof))
#ifdef HAVE_LIBLZMA
#include <lzma.h>
#endif
#define TARGET_NO_FIELD 0xffffffff
typedef enum {
COMPRESSION_AUTO, COMPRESSION_NONE, COMPRESSION_XZ, COMPRESSION_LZMA
} grub_compression_t;
struct image_target_desc
{
const char *dirname;
const char *names[6];
grub_size_t voidp_sizeof;
int bigendian;
enum {
IMAGE_I386_PC, IMAGE_EFI, IMAGE_COREBOOT,
IMAGE_SPARC64_AOUT, IMAGE_SPARC64_RAW, IMAGE_I386_IEEE1275,
IMAGE_LOONGSON_ELF, IMAGE_QEMU, IMAGE_PPC, IMAGE_YEELOONG_FLASH,
IMAGE_FULOONG2F_FLASH, IMAGE_I386_PC_PXE, IMAGE_MIPS_ARC,
IMAGE_QEMU_MIPS_FLASH
} id;
enum
{
PLATFORM_FLAGS_NONE = 0,
PLATFORM_FLAGS_DECOMPRESSORS = 2,
PLATFORM_FLAGS_MODULES_BEFORE_KERNEL = 4,
} flags;
unsigned total_module_size;
unsigned decompressor_compressed_size;
unsigned decompressor_uncompressed_size;
unsigned decompressor_uncompressed_addr;
unsigned link_align;
grub_uint16_t elf_target;
unsigned section_align;
signed vaddr_offset;
grub_uint64_t link_addr;
unsigned mod_gap, mod_align;
grub_compression_t default_compression;
grub_uint16_t pe_target;
};
#define EFI64_HEADER_SIZE ALIGN_UP (GRUB_PE32_MSDOS_STUB_SIZE \
+ GRUB_PE32_SIGNATURE_SIZE \
+ sizeof (struct grub_pe32_coff_header) \
+ sizeof (struct grub_pe64_optional_header) \
+ 4 * sizeof (struct grub_pe32_section_table), \
GRUB_PE32_SECTION_ALIGNMENT)
struct image_target_desc image_targets[] =
{
{
.dirname = "i386-coreboot",
.names = { "i386-coreboot", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_COREBOOT,
.flags = PLATFORM_FLAGS_NONE,
.total_module_size = TARGET_NO_FIELD,
.decompressor_compressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_I386_COREBOOT_LINK_ADDR,
.elf_target = EM_386,
.link_align = 4,
.mod_gap = GRUB_KERNEL_I386_COREBOOT_MOD_GAP,
.mod_align = GRUB_KERNEL_I386_COREBOOT_MOD_ALIGN
},
{
.dirname = "i386-multiboot",
.names = { "i386-multiboot", NULL},
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_COREBOOT,
.flags = PLATFORM_FLAGS_NONE,
.total_module_size = TARGET_NO_FIELD,
.decompressor_compressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_I386_COREBOOT_LINK_ADDR,
.elf_target = EM_386,
.link_align = 4,
.mod_gap = GRUB_KERNEL_I386_COREBOOT_MOD_GAP,
.mod_align = GRUB_KERNEL_I386_COREBOOT_MOD_ALIGN
},
{
.dirname = "i386-pc",
.names = { "i386-pc", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_I386_PC,
.flags = PLATFORM_FLAGS_DECOMPRESSORS,
.total_module_size = TARGET_NO_FIELD,
.decompressor_compressed_size = GRUB_DECOMPRESSOR_I386_PC_COMPRESSED_SIZE,
.decompressor_uncompressed_size = GRUB_DECOMPRESSOR_I386_PC_UNCOMPRESSED_SIZE,
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_I386_PC_LINK_ADDR,
.default_compression = COMPRESSION_LZMA
},
{
.dirname = "i386-pc",
.names = { "i386-pc-pxe", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_I386_PC_PXE,
.flags = PLATFORM_FLAGS_DECOMPRESSORS,
.total_module_size = TARGET_NO_FIELD,
.decompressor_compressed_size = GRUB_DECOMPRESSOR_I386_PC_COMPRESSED_SIZE,
.decompressor_uncompressed_size = GRUB_DECOMPRESSOR_I386_PC_UNCOMPRESSED_SIZE,
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_I386_PC_LINK_ADDR,
.default_compression = COMPRESSION_LZMA
},
{
.dirname = "i386-efi",
.names = { "i386-efi", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_EFI,
.flags = PLATFORM_FLAGS_NONE,
.total_module_size = TARGET_NO_FIELD,
.decompressor_compressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
.section_align = GRUB_PE32_SECTION_ALIGNMENT,
.vaddr_offset = ALIGN_UP (GRUB_PE32_MSDOS_STUB_SIZE
+ GRUB_PE32_SIGNATURE_SIZE
+ sizeof (struct grub_pe32_coff_header)
+ sizeof (struct grub_pe32_optional_header)
+ 4 * sizeof (struct grub_pe32_section_table),
GRUB_PE32_SECTION_ALIGNMENT),
.pe_target = GRUB_PE32_MACHINE_I386,
.elf_target = EM_386,
},
{
.dirname = "i386-ieee1275",
.names = { "i386-ieee1275", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_I386_IEEE1275,
.flags = PLATFORM_FLAGS_NONE,
.total_module_size = TARGET_NO_FIELD,
.decompressor_compressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_I386_IEEE1275_LINK_ADDR,
.elf_target = EM_386,
.mod_gap = GRUB_KERNEL_I386_IEEE1275_MOD_GAP,
.mod_align = GRUB_KERNEL_I386_IEEE1275_MOD_ALIGN,
.link_align = 4,
},
{
.dirname = "i386-qemu",
.names = { "i386-qemu", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_QEMU,
.flags = PLATFORM_FLAGS_NONE,
.total_module_size = TARGET_NO_FIELD,
.decompressor_compressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_I386_QEMU_LINK_ADDR
},
{
.dirname = "x86_64-efi",
.names = { "x86_64-efi", NULL },
.voidp_sizeof = 8,
.bigendian = 0,
.id = IMAGE_EFI,
.flags = PLATFORM_FLAGS_NONE,
.total_module_size = TARGET_NO_FIELD,
.decompressor_compressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
.section_align = GRUB_PE32_SECTION_ALIGNMENT,
.vaddr_offset = EFI64_HEADER_SIZE,
.pe_target = GRUB_PE32_MACHINE_X86_64,
.elf_target = EM_X86_64,
},
{
.dirname = "mipsel-loongson",
.names = { "mipsel-yeeloong-flash", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_YEELOONG_FLASH,
.flags = PLATFORM_FLAGS_DECOMPRESSORS,
.total_module_size = GRUB_KERNEL_MIPS_LOONGSON_TOTAL_MODULE_SIZE,
.decompressor_compressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_COMPRESSED_SIZE,
.decompressor_uncompressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_SIZE,
.decompressor_uncompressed_addr = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_ADDR,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_MIPS_LOONGSON_LINK_ADDR,
.elf_target = EM_MIPS,
.link_align = GRUB_KERNEL_MIPS_LOONGSON_LINK_ALIGN,
.default_compression = COMPRESSION_NONE
},
{
.dirname = "mipsel-loongson",
.names = { "mipsel-fuloong2f-flash", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_FULOONG2F_FLASH,
.flags = PLATFORM_FLAGS_DECOMPRESSORS,
.total_module_size = GRUB_KERNEL_MIPS_LOONGSON_TOTAL_MODULE_SIZE,
.decompressor_compressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_COMPRESSED_SIZE,
.decompressor_uncompressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_SIZE,
.decompressor_uncompressed_addr = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_ADDR,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_MIPS_LOONGSON_LINK_ADDR,
.elf_target = EM_MIPS,
.link_align = GRUB_KERNEL_MIPS_LOONGSON_LINK_ALIGN,
.default_compression = COMPRESSION_NONE
},
{
.dirname = "mipsel-loongson",
.names = { "mipsel-loongson-elf", "mipsel-yeeloong-elf",
"mipsel-fuloong2f-elf", "mipsel-fuloong2e-elf",
"mipsel-fuloong-elf", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_LOONGSON_ELF,
.flags = PLATFORM_FLAGS_DECOMPRESSORS,
.total_module_size = GRUB_KERNEL_MIPS_LOONGSON_TOTAL_MODULE_SIZE,
.decompressor_compressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_COMPRESSED_SIZE,
.decompressor_uncompressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_SIZE,
.decompressor_uncompressed_addr = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_ADDR,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_MIPS_LOONGSON_LINK_ADDR,
.elf_target = EM_MIPS,
.link_align = GRUB_KERNEL_MIPS_LOONGSON_LINK_ALIGN,
.default_compression = COMPRESSION_NONE
},
{
.dirname = "powerpc-ieee1275",
.names = { "powerpc-ieee1275", NULL },
.voidp_sizeof = 4,
.bigendian = 1,
.id = IMAGE_PPC,
.flags = PLATFORM_FLAGS_NONE,
.total_module_size = TARGET_NO_FIELD,
.decompressor_compressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_POWERPC_IEEE1275_LINK_ADDR,
.elf_target = EM_PPC,
.mod_gap = GRUB_KERNEL_POWERPC_IEEE1275_MOD_GAP,
.mod_align = GRUB_KERNEL_POWERPC_IEEE1275_MOD_ALIGN,
.link_align = 4
},
{
.dirname = "sparc64-ieee1275",
.names = { "sparc64-ieee1275-raw", NULL },
.voidp_sizeof = 8,
.bigendian = 1,
.id = IMAGE_SPARC64_RAW,
.flags = PLATFORM_FLAGS_NONE,
.total_module_size = GRUB_KERNEL_SPARC64_IEEE1275_TOTAL_MODULE_SIZE,
.decompressor_compressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_SPARC64_IEEE1275_LINK_ADDR
},
{
.dirname = "sparc64-ieee1275",
.names = { "sparc64-ieee1275-aout", NULL },
.voidp_sizeof = 8,
.bigendian = 1,
.id = IMAGE_SPARC64_AOUT,
.flags = PLATFORM_FLAGS_NONE,
.total_module_size = GRUB_KERNEL_SPARC64_IEEE1275_TOTAL_MODULE_SIZE,
.decompressor_compressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_SPARC64_IEEE1275_LINK_ADDR
},
{
.dirname = "ia64-efi",
.names = {"ia64-efi", NULL},
.voidp_sizeof = 8,
.bigendian = 0,
.id = IMAGE_EFI,
.flags = PLATFORM_FLAGS_NONE,
.total_module_size = TARGET_NO_FIELD,
.decompressor_compressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_size = TARGET_NO_FIELD,
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
.section_align = GRUB_PE32_SECTION_ALIGNMENT,
.vaddr_offset = EFI64_HEADER_SIZE,
.pe_target = GRUB_PE32_MACHINE_IA64,
.elf_target = EM_IA_64,
},
{
.dirname = "mips-arc",
.names = {"mips-arc", NULL},
.voidp_sizeof = 4,
.bigendian = 1,
.id = IMAGE_MIPS_ARC,
.flags = (PLATFORM_FLAGS_DECOMPRESSORS
| PLATFORM_FLAGS_MODULES_BEFORE_KERNEL),
.total_module_size = GRUB_KERNEL_MIPS_ARC_TOTAL_MODULE_SIZE,
.decompressor_compressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_COMPRESSED_SIZE,
.decompressor_uncompressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_SIZE,
.decompressor_uncompressed_addr = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_ADDR,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_MIPS_ARC_LINK_ADDR,
.elf_target = EM_MIPS,
.link_align = GRUB_KERNEL_MIPS_ARC_LINK_ALIGN,
.default_compression = COMPRESSION_NONE
},
{
.dirname = "mipsel-qemu_mips",
.names = { "mipsel-qemu_mips-elf", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_LOONGSON_ELF,
.flags = PLATFORM_FLAGS_DECOMPRESSORS,
.total_module_size = GRUB_KERNEL_MIPS_QEMU_MIPS_TOTAL_MODULE_SIZE,
.decompressor_compressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_COMPRESSED_SIZE,
.decompressor_uncompressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_SIZE,
.decompressor_uncompressed_addr = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_ADDR,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ADDR,
.elf_target = EM_MIPS,
.link_align = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ALIGN,
.default_compression = COMPRESSION_NONE
},
{
.dirname = "mips-qemu_mips",
.names = { "mips-qemu_mips-flash", NULL },
.voidp_sizeof = 4,
.bigendian = 1,
.id = IMAGE_QEMU_MIPS_FLASH,
.flags = PLATFORM_FLAGS_DECOMPRESSORS,
.total_module_size = GRUB_KERNEL_MIPS_QEMU_MIPS_TOTAL_MODULE_SIZE,
.decompressor_compressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_COMPRESSED_SIZE,
.decompressor_uncompressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_SIZE,
.decompressor_uncompressed_addr = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_ADDR,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ADDR,
.elf_target = EM_MIPS,
.link_align = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ALIGN,
.default_compression = COMPRESSION_NONE
},
{
.dirname = "mipsel-qemu_mips",
.names = { "mipsel-qemu_mips-flash", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_QEMU_MIPS_FLASH,
.flags = PLATFORM_FLAGS_DECOMPRESSORS,
.total_module_size = GRUB_KERNEL_MIPS_QEMU_MIPS_TOTAL_MODULE_SIZE,
.decompressor_compressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_COMPRESSED_SIZE,
.decompressor_uncompressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_SIZE,
.decompressor_uncompressed_addr = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_ADDR,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ADDR,
.elf_target = EM_MIPS,
.link_align = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ALIGN,
.default_compression = COMPRESSION_NONE
},
{
.dirname = "mips-qemu_mips",
.names = { "mips-qemu_mips-elf", NULL },
.voidp_sizeof = 4,
.bigendian = 1,
.id = IMAGE_LOONGSON_ELF,
.flags = PLATFORM_FLAGS_DECOMPRESSORS,
.total_module_size = GRUB_KERNEL_MIPS_QEMU_MIPS_TOTAL_MODULE_SIZE,
.decompressor_compressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_COMPRESSED_SIZE,
.decompressor_uncompressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_SIZE,
.decompressor_uncompressed_addr = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_ADDR,
.section_align = 1,
.vaddr_offset = 0,
.link_addr = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ADDR,
.elf_target = EM_MIPS,
.link_align = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ALIGN,
.default_compression = COMPRESSION_NONE
},
};
#define grub_target_to_host32(x) (grub_target_to_host32_real (image_target, (x)))
#define grub_host_to_target32(x) (grub_host_to_target32_real (image_target, (x)))
#define grub_target_to_host64(x) (grub_target_to_host64_real (image_target, (x)))
#define grub_host_to_target64(x) (grub_host_to_target64_real (image_target, (x)))
#define grub_host_to_target_addr(x) (grub_host_to_target_addr_real (image_target, (x)))
#define grub_target_to_host16(x) (grub_target_to_host16_real (image_target, (x)))
#define grub_host_to_target16(x) (grub_host_to_target16_real (image_target, (x)))
static inline grub_uint32_t
grub_target_to_host32_real (struct image_target_desc *image_target, grub_uint32_t in)
{
if (image_target->bigendian)
return grub_be_to_cpu32 (in);
else
return grub_le_to_cpu32 (in);
}
static inline grub_uint64_t
grub_target_to_host64_real (struct image_target_desc *image_target, grub_uint64_t in)
{
if (image_target->bigendian)
return grub_be_to_cpu64 (in);
else
return grub_le_to_cpu64 (in);
}
static inline grub_uint64_t
grub_host_to_target64_real (struct image_target_desc *image_target, grub_uint64_t in)
{
if (image_target->bigendian)
return grub_cpu_to_be64 (in);
else
return grub_cpu_to_le64 (in);
}
static inline grub_uint32_t
grub_host_to_target32_real (struct image_target_desc *image_target, grub_uint32_t in)
{
if (image_target->bigendian)
return grub_cpu_to_be32 (in);
else
return grub_cpu_to_le32 (in);
}
static inline grub_uint16_t
grub_target_to_host16_real (struct image_target_desc *image_target, grub_uint16_t in)
{
if (image_target->bigendian)
return grub_be_to_cpu16 (in);
else
return grub_le_to_cpu16 (in);
}
static inline grub_uint16_t
grub_host_to_target16_real (struct image_target_desc *image_target, grub_uint16_t in)
{
if (image_target->bigendian)
return grub_cpu_to_be16 (in);
else
return grub_cpu_to_le16 (in);
}
static inline grub_uint64_t
grub_host_to_target_addr_real (struct image_target_desc *image_target, grub_uint64_t in)
{
if (image_target->voidp_sizeof == 8)
return grub_host_to_target64_real (image_target, in);
else
return grub_host_to_target32_real (image_target, in);
}
static inline grub_uint64_t
grub_target_to_host_real (struct image_target_desc *image_target, grub_uint64_t in)
{
if (image_target->voidp_sizeof == 8)
return grub_target_to_host64_real (image_target, in);
else
return grub_target_to_host32_real (image_target, in);
}
#define GRUB_IEEE1275_NOTE_NAME "PowerPC"
#define GRUB_IEEE1275_NOTE_TYPE 0x1275
/* These structures are defined according to the CHRP binding to IEEE1275,
"Client Program Format" section. */
struct grub_ieee1275_note_hdr
{
grub_uint32_t namesz;
grub_uint32_t descsz;
grub_uint32_t type;
char name[sizeof (GRUB_IEEE1275_NOTE_NAME)];
};
struct grub_ieee1275_note_desc
{
grub_uint32_t real_mode;
grub_uint32_t real_base;
grub_uint32_t real_size;
grub_uint32_t virt_base;
grub_uint32_t virt_size;
grub_uint32_t load_base;
};
struct grub_ieee1275_note
{
struct grub_ieee1275_note_hdr header;
struct grub_ieee1275_note_desc descriptor;
};
#define grub_target_to_host(val) grub_target_to_host_real(image_target, (val))
#include <grub/lib/LzmaEnc.h>
static void *SzAlloc(void *p, size_t size) { p = p; return xmalloc(size); }
static void SzFree(void *p, void *address) { p = p; free(address); }
static ISzAlloc g_Alloc = { SzAlloc, SzFree };
static void
compress_kernel_lzma (char *kernel_img, size_t kernel_size,
char **core_img, size_t *core_size)
{
CLzmaEncProps props;
unsigned char out_props[5];
size_t out_props_size = 5;
LzmaEncProps_Init(&props);
props.dictSize = 1 << 16;
props.lc = 3;
props.lp = 0;
props.pb = 2;
props.numThreads = 1;
*core_img = xmalloc (kernel_size);
*core_size = kernel_size;
if (LzmaEncode ((unsigned char *) *core_img, core_size,
(unsigned char *) kernel_img,
kernel_size,
&props, out_props, &out_props_size,
0, NULL, &g_Alloc, &g_Alloc) != SZ_OK)
grub_util_error ("%s", _("cannot compress the kernel image"));
}
#ifdef HAVE_LIBLZMA
static void
compress_kernel_xz (char *kernel_img, size_t kernel_size,
char **core_img, size_t *core_size)
{
lzma_stream strm = LZMA_STREAM_INIT;
lzma_ret xzret;
lzma_options_lzma lzopts = {
.dict_size = 1 << 16,
.preset_dict = NULL,
.preset_dict_size = 0,
.lc = 3,
.lp = 0,
.pb = 2,
.mode = LZMA_MODE_NORMAL,
.nice_len = 64,
.mf = LZMA_MF_BT4,
.depth = 0,
};
lzma_filter fltrs[] = {
{ .id = LZMA_FILTER_LZMA2, .options = &lzopts},
{ .id = LZMA_VLI_UNKNOWN, .options = NULL}
};
xzret = lzma_stream_encoder (&strm, fltrs, LZMA_CHECK_NONE);
if (xzret != LZMA_OK)
grub_util_error ("%s", _("cannot compress the kernel image"));
*core_img = xmalloc (kernel_size);
*core_size = kernel_size;
strm.next_in = (unsigned char *) kernel_img;
strm.avail_in = kernel_size;
strm.next_out = (unsigned char *) *core_img;
strm.avail_out = *core_size;
while (1)
{
xzret = lzma_code (&strm, LZMA_FINISH);
if (xzret == LZMA_OK)
continue;
if (xzret == LZMA_STREAM_END)
break;
grub_util_error ("%s", _("cannot compress the kernel image"));
}
*core_size -= strm.avail_out;
}
#endif
static void
compress_kernel (struct image_target_desc *image_target, char *kernel_img,
size_t kernel_size, char **core_img, size_t *core_size,
grub_compression_t comp)
{
if (image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS
&& (comp == COMPRESSION_LZMA))
{
compress_kernel_lzma (kernel_img, kernel_size, core_img,
core_size);
return;
}
#ifdef HAVE_LIBLZMA
if (image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS
&& (comp == COMPRESSION_XZ))
{
compress_kernel_xz (kernel_img, kernel_size, core_img,
core_size);
return;
}
#endif
if (image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS
&& (comp != COMPRESSION_NONE))
grub_util_error (_("unknown compression %d\n"), comp);
*core_img = xmalloc (kernel_size);
memcpy (*core_img, kernel_img, kernel_size);
*core_size = kernel_size;
}
struct fixup_block_list
{
struct fixup_block_list *next;
int state;
struct grub_pe32_fixup_block b;
};
#define MKIMAGE_ELF32 1
#include "grub-mkimagexx.c"
#undef MKIMAGE_ELF32
#define MKIMAGE_ELF64 1
#include "grub-mkimagexx.c"
#undef MKIMAGE_ELF64
static void
generate_image (const char *dir, const char *prefix,
FILE *out, const char *outname, char *mods[],
char *memdisk_path, char *config_path,
struct image_target_desc *image_target, int note,
grub_compression_t comp)
{
char *kernel_img, *core_img;
size_t kernel_size, total_module_size, core_size, exec_size;
size_t memdisk_size = 0, config_size = 0, config_size_pure = 0;
size_t prefix_size = 0;
char *kernel_path;
size_t offset;
struct grub_util_path_list *path_list, *p, *next;
grub_size_t bss_size;
grub_uint64_t start_address;
void *rel_section = 0;
grub_size_t reloc_size = 0, align;
size_t decompress_size = 0;
if (comp == COMPRESSION_AUTO)
comp = image_target->default_compression;
if (image_target->id == IMAGE_I386_PC
|| image_target->id == IMAGE_I386_PC_PXE)
comp = COMPRESSION_LZMA;
path_list = grub_util_resolve_dependencies (dir, "moddep.lst", mods);
kernel_path = grub_util_get_path (dir, "kernel.img");
if (image_target->voidp_sizeof == 8)
total_module_size = sizeof (struct grub_module_info64);
else
total_module_size = sizeof (struct grub_module_info32);
if (memdisk_path)
{
memdisk_size = ALIGN_UP(grub_util_get_image_size (memdisk_path), 512);
grub_util_info ("the size of memory disk is 0x%llx",
(unsigned long long) memdisk_size);
total_module_size += memdisk_size + sizeof (struct grub_module_header);
}
if (config_path)
{
config_size_pure = grub_util_get_image_size (config_path) + 1;
config_size = ALIGN_ADDR (config_size_pure);
grub_util_info ("the size of config file is 0x%llx",
(unsigned long long) config_size);
total_module_size += config_size + sizeof (struct grub_module_header);
}
if (prefix)
{
prefix_size = ALIGN_ADDR (strlen (prefix) + 1);
total_module_size += prefix_size + sizeof (struct grub_module_header);
}
for (p = path_list; p; p = p->next)
total_module_size += (ALIGN_ADDR (grub_util_get_image_size (p->name))
+ sizeof (struct grub_module_header));
grub_util_info ("the total module size is 0x%llx",
(unsigned long long) total_module_size);
if (image_target->voidp_sizeof == 4)
kernel_img = load_image32 (kernel_path, &exec_size, &kernel_size, &bss_size,
total_module_size, &start_address, &rel_section,
&reloc_size, &align, image_target);
else
kernel_img = load_image64 (kernel_path, &exec_size, &kernel_size, &bss_size,
total_module_size, &start_address, &rel_section,
&reloc_size, &align, image_target);
if ((image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS)
&& (image_target->total_module_size != TARGET_NO_FIELD))
*((grub_uint32_t *) (kernel_img + image_target->total_module_size))
= grub_host_to_target32 (total_module_size);
if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
memmove (kernel_img + total_module_size, kernel_img, kernel_size);
if (image_target->voidp_sizeof == 8)
{
/* Fill in the grub_module_info structure. */
struct grub_module_info64 *modinfo;
if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
modinfo = (struct grub_module_info64 *) kernel_img;
else
modinfo = (struct grub_module_info64 *) (kernel_img + kernel_size);
memset (modinfo, 0, sizeof (struct grub_module_info64));
modinfo->magic = grub_host_to_target32 (GRUB_MODULE_MAGIC);
modinfo->offset = grub_host_to_target_addr (sizeof (struct grub_module_info64));
modinfo->size = grub_host_to_target_addr (total_module_size);
if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
offset = sizeof (struct grub_module_info64);
else
offset = kernel_size + sizeof (struct grub_module_info64);
}
else
{
/* Fill in the grub_module_info structure. */
struct grub_module_info32 *modinfo;
if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
modinfo = (struct grub_module_info32 *) kernel_img;
else
modinfo = (struct grub_module_info32 *) (kernel_img + kernel_size);
memset (modinfo, 0, sizeof (struct grub_module_info32));
modinfo->magic = grub_host_to_target32 (GRUB_MODULE_MAGIC);
modinfo->offset = grub_host_to_target_addr (sizeof (struct grub_module_info32));
modinfo->size = grub_host_to_target_addr (total_module_size);
if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
offset = sizeof (struct grub_module_info32);
else
offset = kernel_size + sizeof (struct grub_module_info32);
}
for (p = path_list; p; p = p->next)
{
struct grub_module_header *header;
size_t mod_size, orig_size;
orig_size = grub_util_get_image_size (p->name);
mod_size = ALIGN_ADDR (orig_size);
header = (struct grub_module_header *) (kernel_img + offset);
memset (header, 0, sizeof (struct grub_module_header));
header->type = grub_host_to_target32 (OBJ_TYPE_ELF);
header->size = grub_host_to_target32 (mod_size + sizeof (*header));
offset += sizeof (*header);
memset (kernel_img + offset + orig_size, 0, mod_size - orig_size);
grub_util_load_image (p->name, kernel_img + offset);
offset += mod_size;
}
if (memdisk_path)
{
struct grub_module_header *header;
header = (struct grub_module_header *) (kernel_img + offset);
memset (header, 0, sizeof (struct grub_module_header));
header->type = grub_host_to_target32 (OBJ_TYPE_MEMDISK);
header->size = grub_host_to_target32 (memdisk_size + sizeof (*header));
offset += sizeof (*header);
grub_util_load_image (memdisk_path, kernel_img + offset);
offset += memdisk_size;
}
if (config_path)
{
struct grub_module_header *header;
header = (struct grub_module_header *) (kernel_img + offset);
memset (header, 0, sizeof (struct grub_module_header));
header->type = grub_host_to_target32 (OBJ_TYPE_CONFIG);
header->size = grub_host_to_target32 (config_size + sizeof (*header));
offset += sizeof (*header);
grub_util_load_image (config_path, kernel_img + offset);
*(kernel_img + offset + config_size_pure - 1) = 0;
offset += config_size;
}
if (prefix)
{
struct grub_module_header *header;
header = (struct grub_module_header *) (kernel_img + offset);
memset (header, 0, sizeof (struct grub_module_header));
header->type = grub_host_to_target32 (OBJ_TYPE_PREFIX);
header->size = grub_host_to_target32 (prefix_size + sizeof (*header));
offset += sizeof (*header);
grub_memset (kernel_img + offset, 0, prefix_size);
grub_strcpy (kernel_img + offset, prefix);
offset += prefix_size;
}
grub_util_info ("kernel_img=%p, kernel_size=0x%llx", kernel_img,
(unsigned long long) kernel_size);
compress_kernel (image_target, kernel_img, kernel_size + total_module_size,
&core_img, &core_size, comp);
free (kernel_img);
grub_util_info ("the core size is 0x%llx", (unsigned long long) core_size);
if (!(image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS)
&& image_target->total_module_size != TARGET_NO_FIELD)
*((grub_uint32_t *) (core_img + image_target->total_module_size))
= grub_host_to_target32 (total_module_size);
if (image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS)
{
char *full_img;
size_t full_size;
char *decompress_path, *decompress_img;
const char *name;
switch (comp)
{
case COMPRESSION_XZ:
name = "xz_decompress.img";
break;
case COMPRESSION_LZMA:
name = "lzma_decompress.img";
break;
case COMPRESSION_NONE:
name = "none_decompress.img";
break;
default:
grub_util_error (_("unknown compression %d\n"), comp);
}
decompress_path = grub_util_get_path (dir, name);
decompress_size = grub_util_get_image_size (decompress_path);
decompress_img = grub_util_read_image (decompress_path);
if ((image_target->id == IMAGE_I386_PC
|| image_target->id == IMAGE_I386_PC_PXE)
&& decompress_size > GRUB_KERNEL_I386_PC_LINK_ADDR - 0x8200)
grub_util_error ("%s", _("Decompressor is too big"));
if (image_target->decompressor_compressed_size != TARGET_NO_FIELD)
*((grub_uint32_t *) (decompress_img
+ image_target->decompressor_compressed_size))
= grub_host_to_target32 (core_size);
if (image_target->decompressor_uncompressed_size != TARGET_NO_FIELD)
*((grub_uint32_t *) (decompress_img
+ image_target->decompressor_uncompressed_size))
= grub_host_to_target32 (kernel_size + total_module_size);
if (image_target->decompressor_uncompressed_addr != TARGET_NO_FIELD)
{
if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
*((grub_uint32_t *) (decompress_img + image_target->decompressor_uncompressed_addr))
= grub_host_to_target_addr (image_target->link_addr - total_module_size);
else
*((grub_uint32_t *) (decompress_img + image_target->decompressor_uncompressed_addr))
= grub_host_to_target_addr (image_target->link_addr);
}
full_size = core_size + decompress_size;
full_img = xmalloc (full_size);
memset (full_img, 0, full_size);
memcpy (full_img, decompress_img, decompress_size);
memcpy (full_img + decompress_size, core_img, core_size);
memset (full_img + decompress_size + core_size, 0,
full_size - (decompress_size + core_size));
free (core_img);
core_img = full_img;
core_size = full_size;
}
switch (image_target->id)
{
case IMAGE_I386_PC:
case IMAGE_I386_PC_PXE:
{
unsigned num;
char *boot_path, *boot_img;
size_t boot_size;
if (GRUB_KERNEL_I386_PC_LINK_ADDR + core_size > 0x78000
|| (core_size > (0xffff << GRUB_DISK_SECTOR_BITS)))
grub_util_error (_("core image is too big (0x%x > 0x%x)"),
GRUB_KERNEL_I386_PC_LINK_ADDR + core_size,
0x78000);
num = ((core_size + GRUB_DISK_SECTOR_SIZE - 1) >> GRUB_DISK_SECTOR_BITS);
if (image_target->id == IMAGE_I386_PC_PXE)
{
char *pxeboot_path, *pxeboot_img;
size_t pxeboot_size;
grub_uint32_t *ptr;
pxeboot_path = grub_util_get_path (dir, "pxeboot.img");
pxeboot_size = grub_util_get_image_size (pxeboot_path);
pxeboot_img = grub_util_read_image (pxeboot_path);
grub_util_write_image (pxeboot_img, pxeboot_size, out,
outname);
free (pxeboot_img);
free (pxeboot_path);
/* Remove Multiboot header to avoid confusing ipxe. */
for (ptr = (grub_uint32_t *) core_img;
ptr < (grub_uint32_t *) (core_img + MULTIBOOT_SEARCH); ptr++)
if (*ptr == grub_host_to_target32 (MULTIBOOT_HEADER_MAGIC)
&& grub_target_to_host32 (ptr[0])
+ grub_target_to_host32 (ptr[1])
+ grub_target_to_host32 (ptr[2]) == 0)
{
*ptr = 0;
break;
}
}
boot_path = grub_util_get_path (dir, "diskboot.img");
boot_size = grub_util_get_image_size (boot_path);
if (boot_size != GRUB_DISK_SECTOR_SIZE)
grub_util_error (_("diskboot.img size must be %u bytes"),
GRUB_DISK_SECTOR_SIZE);
boot_img = grub_util_read_image (boot_path);
{
struct grub_pc_bios_boot_blocklist *block;
block = (struct grub_pc_bios_boot_blocklist *) (boot_img
+ GRUB_DISK_SECTOR_SIZE
- sizeof (*block));
block->len = grub_host_to_target16 (num);
/* This is filled elsewhere. Verify it just in case. */
assert (block->segment
== grub_host_to_target16 (GRUB_BOOT_I386_PC_KERNEL_SEG
+ (GRUB_DISK_SECTOR_SIZE >> 4)));
}
grub_util_write_image (boot_img, boot_size, out, outname);
free (boot_img);
free (boot_path);
}
break;
case IMAGE_EFI:
{
void *pe_img;
grub_uint8_t *header;
void *sections;
size_t pe_size;
struct grub_pe32_coff_header *c;
struct grub_pe32_section_table *text_section, *data_section;
struct grub_pe32_section_table *mods_section, *reloc_section;
static const grub_uint8_t stub[] = GRUB_PE32_MSDOS_STUB;
int header_size;
int reloc_addr;
if (image_target->voidp_sizeof == 4)
header_size = ALIGN_UP (GRUB_PE32_MSDOS_STUB_SIZE
+ GRUB_PE32_SIGNATURE_SIZE
+ sizeof (struct grub_pe32_coff_header)
+ sizeof (struct grub_pe32_optional_header)
+ 4 * sizeof (struct grub_pe32_section_table),
GRUB_PE32_SECTION_ALIGNMENT);
else
header_size = EFI64_HEADER_SIZE;
reloc_addr = ALIGN_UP (header_size + core_size,
image_target->section_align);
pe_size = ALIGN_UP (reloc_addr + reloc_size,
image_target->section_align);
pe_img = xmalloc (reloc_addr + reloc_size);
memset (pe_img, 0, header_size);
memcpy ((char *) pe_img + header_size, core_img, core_size);
memcpy ((char *) pe_img + reloc_addr, rel_section, reloc_size);
header = pe_img;
/* The magic. */
memcpy (header, stub, GRUB_PE32_MSDOS_STUB_SIZE);
memcpy (header + GRUB_PE32_MSDOS_STUB_SIZE, "PE\0\0",
GRUB_PE32_SIGNATURE_SIZE);
/* The COFF file header. */
c = (struct grub_pe32_coff_header *) (header + GRUB_PE32_MSDOS_STUB_SIZE
+ GRUB_PE32_SIGNATURE_SIZE);
c->machine = grub_host_to_target16 (image_target->pe_target);
c->num_sections = grub_host_to_target16 (4);
c->time = grub_host_to_target32 (time (0));
c->characteristics = grub_host_to_target16 (GRUB_PE32_EXECUTABLE_IMAGE
| GRUB_PE32_LINE_NUMS_STRIPPED
| ((image_target->voidp_sizeof == 4)
? GRUB_PE32_32BIT_MACHINE
: 0)
| GRUB_PE32_LOCAL_SYMS_STRIPPED
| GRUB_PE32_DEBUG_STRIPPED);
/* The PE Optional header. */
if (image_target->voidp_sizeof == 4)
{
struct grub_pe32_optional_header *o;
c->optional_header_size = grub_host_to_target16 (sizeof (struct grub_pe32_optional_header));
o = (struct grub_pe32_optional_header *)
(header + GRUB_PE32_MSDOS_STUB_SIZE + GRUB_PE32_SIGNATURE_SIZE
+ sizeof (struct grub_pe32_coff_header));
o->magic = grub_host_to_target16 (GRUB_PE32_PE32_MAGIC);
o->code_size = grub_host_to_target32 (exec_size);
o->data_size = grub_cpu_to_le32 (reloc_addr - exec_size
- header_size);
o->bss_size = grub_cpu_to_le32 (bss_size);
o->entry_addr = grub_cpu_to_le32 (start_address);
o->code_base = grub_cpu_to_le32 (header_size);
o->data_base = grub_host_to_target32 (header_size + exec_size);
o->image_base = 0;
o->section_alignment = grub_host_to_target32 (image_target->section_align);
o->file_alignment = grub_host_to_target32 (image_target->section_align);
o->image_size = grub_host_to_target32 (pe_size);
o->header_size = grub_host_to_target32 (header_size);
o->subsystem = grub_host_to_target16 (GRUB_PE32_SUBSYSTEM_EFI_APPLICATION);
/* Do these really matter? */
o->stack_reserve_size = grub_host_to_target32 (0x10000);
o->stack_commit_size = grub_host_to_target32 (0x10000);
o->heap_reserve_size = grub_host_to_target32 (0x10000);
o->heap_commit_size = grub_host_to_target32 (0x10000);
o->num_data_directories = grub_host_to_target32 (GRUB_PE32_NUM_DATA_DIRECTORIES);
o->base_relocation_table.rva = grub_host_to_target32 (reloc_addr);
o->base_relocation_table.size = grub_host_to_target32 (reloc_size);
sections = o + 1;
}
else
{
struct grub_pe64_optional_header *o;
c->optional_header_size = grub_host_to_target16 (sizeof (struct grub_pe64_optional_header));
o = (struct grub_pe64_optional_header *)
(header + GRUB_PE32_MSDOS_STUB_SIZE + GRUB_PE32_SIGNATURE_SIZE
+ sizeof (struct grub_pe32_coff_header));
o->magic = grub_host_to_target16 (GRUB_PE32_PE64_MAGIC);
o->code_size = grub_host_to_target32 (exec_size);
o->data_size = grub_cpu_to_le32 (reloc_addr - exec_size
- header_size);
o->bss_size = grub_cpu_to_le32 (bss_size);
o->entry_addr = grub_cpu_to_le32 (start_address);
o->code_base = grub_cpu_to_le32 (header_size);
o->image_base = 0;
o->section_alignment = grub_host_to_target32 (image_target->section_align);
o->file_alignment = grub_host_to_target32 (image_target->section_align);
o->image_size = grub_host_to_target32 (pe_size);
o->header_size = grub_host_to_target32 (header_size);
o->subsystem = grub_host_to_target16 (GRUB_PE32_SUBSYSTEM_EFI_APPLICATION);
/* Do these really matter? */
o->stack_reserve_size = grub_host_to_target32 (0x10000);
o->stack_commit_size = grub_host_to_target32 (0x10000);
o->heap_reserve_size = grub_host_to_target32 (0x10000);
o->heap_commit_size = grub_host_to_target32 (0x10000);
o->num_data_directories
= grub_host_to_target32 (GRUB_PE32_NUM_DATA_DIRECTORIES);
o->base_relocation_table.rva = grub_host_to_target32 (reloc_addr);
o->base_relocation_table.size = grub_host_to_target32 (reloc_size);
sections = o + 1;
}
/* The sections. */
text_section = sections;
strcpy (text_section->name, ".text");
text_section->virtual_size = grub_cpu_to_le32 (exec_size);
text_section->virtual_address = grub_cpu_to_le32 (header_size);
text_section->raw_data_size = grub_cpu_to_le32 (exec_size);
text_section->raw_data_offset = grub_cpu_to_le32 (header_size);
text_section->characteristics = grub_cpu_to_le32 (GRUB_PE32_SCN_CNT_CODE
| GRUB_PE32_SCN_MEM_EXECUTE
| GRUB_PE32_SCN_MEM_READ);
data_section = text_section + 1;
strcpy (data_section->name, ".data");
data_section->virtual_size = grub_cpu_to_le32 (kernel_size - exec_size);
data_section->virtual_address = grub_cpu_to_le32 (header_size + exec_size);
data_section->raw_data_size = grub_cpu_to_le32 (kernel_size - exec_size);
data_section->raw_data_offset = grub_cpu_to_le32 (header_size + exec_size);
data_section->characteristics
= grub_cpu_to_le32 (GRUB_PE32_SCN_CNT_INITIALIZED_DATA
| GRUB_PE32_SCN_MEM_READ
| GRUB_PE32_SCN_MEM_WRITE);
#if 0
bss_section = data_section + 1;
strcpy (bss_section->name, ".bss");
bss_section->virtual_size = grub_cpu_to_le32 (bss_size);
bss_section->virtual_address = grub_cpu_to_le32 (header_size + kernel_size);
bss_section->raw_data_size = 0;
bss_section->raw_data_offset = 0;
bss_section->characteristics
= grub_cpu_to_le32 (GRUB_PE32_SCN_MEM_READ
| GRUB_PE32_SCN_MEM_WRITE
| GRUB_PE32_SCN_ALIGN_64BYTES
| GRUB_PE32_SCN_CNT_INITIALIZED_DATA
| 0x80);
#endif
mods_section = data_section + 1;
strcpy (mods_section->name, "mods");
mods_section->virtual_size = grub_cpu_to_le32 (reloc_addr - kernel_size - header_size);
mods_section->virtual_address = grub_cpu_to_le32 (header_size + kernel_size + bss_size);
mods_section->raw_data_size = grub_cpu_to_le32 (reloc_addr - kernel_size - header_size);
mods_section->raw_data_offset = grub_cpu_to_le32 (header_size + kernel_size);
mods_section->characteristics
= grub_cpu_to_le32 (GRUB_PE32_SCN_CNT_INITIALIZED_DATA
| GRUB_PE32_SCN_MEM_READ
| GRUB_PE32_SCN_MEM_WRITE);
reloc_section = mods_section + 1;
strcpy (reloc_section->name, ".reloc");
reloc_section->virtual_size = grub_cpu_to_le32 (reloc_size);
reloc_section->virtual_address = grub_cpu_to_le32 (reloc_addr + bss_size);
reloc_section->raw_data_size = grub_cpu_to_le32 (reloc_size);
reloc_section->raw_data_offset = grub_cpu_to_le32 (reloc_addr);
reloc_section->characteristics
= grub_cpu_to_le32 (GRUB_PE32_SCN_CNT_INITIALIZED_DATA
| GRUB_PE32_SCN_MEM_DISCARDABLE
| GRUB_PE32_SCN_MEM_READ);
free (core_img);
core_img = pe_img;
core_size = pe_size;
}
break;
case IMAGE_QEMU:
{
char *rom_img;
size_t rom_size;
char *boot_path, *boot_img;
size_t boot_size;
boot_path = grub_util_get_path (dir, "boot.img");
boot_size = grub_util_get_image_size (boot_path);
boot_img = grub_util_read_image (boot_path);
/* Rom sizes must be 64k-aligned. */
rom_size = ALIGN_UP (core_size + boot_size, 64 * 1024);
rom_img = xmalloc (rom_size);
memset (rom_img, 0, rom_size);
*((grub_int32_t *) (core_img + GRUB_KERNEL_I386_QEMU_CORE_ENTRY_ADDR))
= grub_host_to_target32 ((grub_uint32_t) -rom_size);
memcpy (rom_img, core_img, core_size);
*((grub_int32_t *) (boot_img + GRUB_BOOT_I386_QEMU_CORE_ENTRY_ADDR))
= grub_host_to_target32 ((grub_uint32_t) -rom_size);
memcpy (rom_img + rom_size - boot_size, boot_img, boot_size);
free (core_img);
core_img = rom_img;
core_size = rom_size;
free (boot_img);
free (boot_path);
}
break;
case IMAGE_SPARC64_AOUT:
{
void *aout_img;
size_t aout_size;
struct grub_aout32_header *aout_head;
aout_size = core_size + sizeof (*aout_head);
aout_img = xmalloc (aout_size);
aout_head = aout_img;
grub_memset (aout_head, 0, sizeof (*aout_head));
aout_head->a_midmag = grub_host_to_target32 ((AOUT_MID_SUN << 16)
| AOUT32_OMAGIC);
aout_head->a_text = grub_host_to_target32 (core_size);
aout_head->a_entry
= grub_host_to_target32 (GRUB_BOOT_SPARC64_IEEE1275_IMAGE_ADDRESS);
memcpy ((char *) aout_img + sizeof (*aout_head), core_img, core_size);
free (core_img);
core_img = aout_img;
core_size = aout_size;
}
break;
case IMAGE_SPARC64_RAW:
{
unsigned int num;
char *boot_path, *boot_img;
size_t boot_size;
num = ((core_size + GRUB_DISK_SECTOR_SIZE - 1) >> GRUB_DISK_SECTOR_BITS);
num <<= GRUB_DISK_SECTOR_BITS;
boot_path = grub_util_get_path (dir, "diskboot.img");
boot_size = grub_util_get_image_size (boot_path);
if (boot_size != GRUB_DISK_SECTOR_SIZE)
grub_util_error (_("diskboot.img size must be %u bytes"),
GRUB_DISK_SECTOR_SIZE);
boot_img = grub_util_read_image (boot_path);
*((grub_uint32_t *) (boot_img + GRUB_DISK_SECTOR_SIZE
- GRUB_BOOT_SPARC64_IEEE1275_LIST_SIZE + 8))
= grub_host_to_target32 (num);
grub_util_write_image (boot_img, boot_size, out, outname);
free (boot_img);
free (boot_path);
}
break;
case IMAGE_YEELOONG_FLASH:
case IMAGE_FULOONG2F_FLASH:
{
char *rom_img;
size_t rom_size;
char *boot_path, *boot_img;
size_t boot_size;
grub_uint8_t context[GRUB_MD_SHA512->contextsize];
/* fwstart.img is the only part which can't be tested by using *-elf
target. Check it against the checksum. */
const grub_uint8_t yeeloong_fwstart_good_hash[512 / 8] =
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
/* None yet. */
const grub_uint8_t fuloong2f_fwstart_good_hash[512 / 8] =
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
const grub_uint8_t *fwstart_good_hash;
if (image_target->id == IMAGE_FULOONG2F_FLASH)
{
fwstart_good_hash = fuloong2f_fwstart_good_hash;
boot_path = grub_util_get_path (dir, "fwstart_fuloong2f.img");
}
else
{
fwstart_good_hash = yeeloong_fwstart_good_hash;
boot_path = grub_util_get_path (dir, "fwstart.img");
}
boot_size = grub_util_get_image_size (boot_path);
boot_img = grub_util_read_image (boot_path);
grub_memset (context, 0, sizeof (context));
GRUB_MD_SHA512->init (context);
GRUB_MD_SHA512->write (context, boot_img, boot_size);
GRUB_MD_SHA512->final (context);
if (grub_memcmp (GRUB_MD_SHA512->read (context), fwstart_good_hash,
GRUB_MD_SHA512->mdlen) != 0)
/* TRANSLATORS: fwstart.img may still be good, just it wasn't checked. */
grub_util_warn ("%s",
_("fwstart.img doesn't match the known good version. "
"proceed at your own risk"));
if (core_size + boot_size > 512 * 1024)
grub_util_error ("%s", _("firmware image is too big"));
rom_size = 512 * 1024;
rom_img = xmalloc (rom_size);
memset (rom_img, 0, rom_size);
memcpy (rom_img, boot_img, boot_size);
memcpy (rom_img + boot_size, core_img, core_size);
memset (rom_img + boot_size + core_size, 0,
rom_size - (boot_size + core_size));
free (core_img);
core_img = rom_img;
core_size = rom_size;
}
break;
case IMAGE_QEMU_MIPS_FLASH:
{
char *rom_img;
size_t rom_size;
if (core_size > 512 * 1024)
grub_util_error ("%s", _("firmware image is too big"));
rom_size = 512 * 1024;
rom_img = xmalloc (rom_size);
memset (rom_img, 0, rom_size);
memcpy (rom_img, core_img, core_size);
memset (rom_img + core_size, 0,
rom_size - core_size);
free (core_img);
core_img = rom_img;
core_size = rom_size;
}
break;
case IMAGE_MIPS_ARC:
{
char *ecoff_img;
struct ecoff_header {
grub_uint16_t magic;
grub_uint16_t nsec;
grub_uint32_t time;
grub_uint32_t syms;
grub_uint32_t nsyms;
grub_uint16_t opt;
grub_uint16_t flags;
grub_uint16_t magic2;
grub_uint16_t version;
grub_uint32_t textsize;
grub_uint32_t datasize;
grub_uint32_t bsssize;
grub_uint32_t entry;
grub_uint32_t text_start;
grub_uint32_t data_start;
grub_uint32_t bss_start;
grub_uint32_t gprmask;
grub_uint32_t cprmask[4];
grub_uint32_t gp_value;
};
struct ecoff_section
{
char name[8];
grub_uint32_t paddr;
grub_uint32_t vaddr;
grub_uint32_t size;
grub_uint32_t file_offset;
grub_uint32_t reloc;
grub_uint32_t gp;
grub_uint16_t nreloc;
grub_uint16_t ngp;
grub_uint32_t flags;
};
struct ecoff_header *head;
struct ecoff_section *section;
grub_uint32_t target_addr;
size_t program_size;
program_size = ALIGN_ADDR (core_size);
if (comp == COMPRESSION_NONE)
target_addr = (image_target->link_addr
- total_module_size - decompress_size);
else
target_addr = (image_target->link_addr
- ALIGN_UP(total_module_size + core_size, 1048576)
- (1 << 20));
ecoff_img = xmalloc (program_size + sizeof (*head) + sizeof (*section));
grub_memset (ecoff_img, 0, program_size + sizeof (*head) + sizeof (*section));
head = (void *) ecoff_img;
section = (void *) (head + 1);
head->magic = grub_host_to_target16 (0x160);
head->nsec = grub_host_to_target16 (1);
head->time = grub_host_to_target32 (0);
head->opt = grub_host_to_target16 (0x38);
head->flags = grub_host_to_target16 (0x207);
head->magic2 = grub_host_to_target16 (0x107);
head->textsize = grub_host_to_target32 (program_size);
head->entry = grub_host_to_target32 (target_addr);
head->text_start = grub_host_to_target32 (target_addr);
head->data_start = grub_host_to_target32 (target_addr + program_size);
grub_memcpy (section->name, ".text", sizeof (".text") - 1);
section->vaddr = grub_host_to_target32 (target_addr);
section->size = grub_host_to_target32 (program_size);
section->file_offset = grub_host_to_target32 (sizeof (*head) + sizeof (*section));
memcpy (section + 1, core_img, core_size);
free (core_img);
core_img = ecoff_img;
core_size = program_size + sizeof (*head) + sizeof (*section);
}
break;
case IMAGE_LOONGSON_ELF:
case IMAGE_PPC:
case IMAGE_COREBOOT:
case IMAGE_I386_IEEE1275:
{
char *elf_img;
size_t program_size;
Elf32_Ehdr *ehdr;
Elf32_Phdr *phdr;
grub_uint32_t target_addr;
int header_size, footer_size = 0;
int phnum = 1;
if (image_target->id != IMAGE_LOONGSON_ELF)
phnum += 2;
if (note)
{
phnum++;
footer_size += sizeof (struct grub_ieee1275_note);
}
header_size = ALIGN_ADDR (sizeof (*ehdr) + phnum * sizeof (*phdr));
program_size = ALIGN_ADDR (core_size);
elf_img = xmalloc (program_size + header_size + footer_size);
memset (elf_img, 0, program_size + header_size);
memcpy (elf_img + header_size, core_img, core_size);
ehdr = (void *) elf_img;
phdr = (void *) (elf_img + sizeof (*ehdr));
memcpy (ehdr->e_ident, ELFMAG, SELFMAG);
ehdr->e_ident[EI_CLASS] = ELFCLASS32;
if (!image_target->bigendian)
ehdr->e_ident[EI_DATA] = ELFDATA2LSB;
else
ehdr->e_ident[EI_DATA] = ELFDATA2MSB;
ehdr->e_ident[EI_VERSION] = EV_CURRENT;
ehdr->e_ident[EI_OSABI] = ELFOSABI_NONE;
ehdr->e_type = grub_host_to_target16 (ET_EXEC);
ehdr->e_machine = grub_host_to_target16 (image_target->elf_target);
ehdr->e_version = grub_host_to_target32 (EV_CURRENT);
ehdr->e_phoff = grub_host_to_target32 ((char *) phdr - (char *) ehdr);
ehdr->e_phentsize = grub_host_to_target16 (sizeof (*phdr));
ehdr->e_phnum = grub_host_to_target16 (phnum);
/* No section headers. */
ehdr->e_shoff = grub_host_to_target32 (0);
if (image_target->id == IMAGE_LOONGSON_ELF)
ehdr->e_shentsize = grub_host_to_target16 (0);
else
ehdr->e_shentsize = grub_host_to_target16 (sizeof (Elf32_Shdr));
ehdr->e_shnum = grub_host_to_target16 (0);
ehdr->e_shstrndx = grub_host_to_target16 (0);
ehdr->e_ehsize = grub_host_to_target16 (sizeof (*ehdr));
phdr->p_type = grub_host_to_target32 (PT_LOAD);
phdr->p_offset = grub_host_to_target32 (header_size);
phdr->p_flags = grub_host_to_target32 (PF_R | PF_W | PF_X);
if (image_target->id == IMAGE_LOONGSON_ELF)
{
if (comp == COMPRESSION_NONE)
target_addr = (image_target->link_addr - decompress_size);
else
target_addr = ALIGN_UP (image_target->link_addr
+ kernel_size + total_module_size, 32);
}
else
target_addr = image_target->link_addr;
ehdr->e_entry = grub_host_to_target32 (target_addr);
phdr->p_vaddr = grub_host_to_target32 (target_addr);
phdr->p_paddr = grub_host_to_target32 (target_addr);
phdr->p_align = grub_host_to_target32 (align > image_target->link_align ? align : image_target->link_align);
if (image_target->id == IMAGE_LOONGSON_ELF)
ehdr->e_flags = grub_host_to_target32 (0x1000 | EF_MIPS_NOREORDER
| EF_MIPS_PIC | EF_MIPS_CPIC);
else
ehdr->e_flags = 0;
if (image_target->id == IMAGE_LOONGSON_ELF)
{
phdr->p_filesz = grub_host_to_target32 (core_size);
phdr->p_memsz = grub_host_to_target32 (core_size);
}
else
{
grub_uint32_t target_addr_mods;
phdr->p_filesz = grub_host_to_target32 (kernel_size);
phdr->p_memsz = grub_host_to_target32 (kernel_size + bss_size);
phdr++;
phdr->p_type = grub_host_to_target32 (PT_GNU_STACK);
phdr->p_offset = grub_host_to_target32 (header_size + kernel_size);
phdr->p_paddr = phdr->p_vaddr = phdr->p_filesz = phdr->p_memsz = 0;
phdr->p_flags = grub_host_to_target32 (PF_R | PF_W | PF_X);
phdr->p_align = grub_host_to_target32 (image_target->link_align);
phdr++;
phdr->p_type = grub_host_to_target32 (PT_LOAD);
phdr->p_offset = grub_host_to_target32 (header_size + kernel_size);
phdr->p_flags = grub_host_to_target32 (PF_R | PF_W | PF_X);
phdr->p_filesz = phdr->p_memsz
= grub_host_to_target32 (core_size - kernel_size);
target_addr_mods = ALIGN_UP (target_addr + kernel_size + bss_size
+ image_target->mod_gap,
image_target->mod_align);
phdr->p_vaddr = grub_host_to_target32 (target_addr_mods);
phdr->p_paddr = grub_host_to_target32 (target_addr_mods);
phdr->p_align = grub_host_to_target32 (image_target->link_align);
}
if (note)
{
int note_size = sizeof (struct grub_ieee1275_note);
struct grub_ieee1275_note *note_ptr = (struct grub_ieee1275_note *)
(elf_img + program_size + header_size);
grub_util_info ("adding CHRP NOTE segment");
note_ptr->header.namesz = grub_host_to_target32 (sizeof (GRUB_IEEE1275_NOTE_NAME));
note_ptr->header.descsz = grub_host_to_target32 (note_size);
note_ptr->header.type = grub_host_to_target32 (GRUB_IEEE1275_NOTE_TYPE);
strcpy (note_ptr->header.name, GRUB_IEEE1275_NOTE_NAME);
note_ptr->descriptor.real_mode = grub_host_to_target32 (0xffffffff);
note_ptr->descriptor.real_base = grub_host_to_target32 (0x00c00000);
note_ptr->descriptor.real_size = grub_host_to_target32 (0xffffffff);
note_ptr->descriptor.virt_base = grub_host_to_target32 (0xffffffff);
note_ptr->descriptor.virt_size = grub_host_to_target32 (0xffffffff);
note_ptr->descriptor.load_base = grub_host_to_target32 (0x00004000);
phdr++;
phdr->p_type = grub_host_to_target32 (PT_NOTE);
phdr->p_flags = grub_host_to_target32 (PF_R);
phdr->p_align = grub_host_to_target32 (image_target->voidp_sizeof);
phdr->p_vaddr = 0;
phdr->p_paddr = 0;
phdr->p_filesz = grub_host_to_target32 (note_size);
phdr->p_memsz = 0;
phdr->p_offset = grub_host_to_target32 (header_size + program_size);
}
free (core_img);
core_img = elf_img;
core_size = program_size + header_size + footer_size;
}
break;
}
grub_util_write_image (core_img, core_size, out, outname);
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 argp_option options[] = {
{"directory", 'd', N_("DIR"), 0,
/* TRANSLATORS: platform here isn't identifier. It can be translated. */
N_("use images and modules under DIR [default=%s/<platform>]"), 0},
{"prefix", 'p', N_("DIR"), 0, N_("set prefix directory [default=%s]"), 0},
{"memdisk", 'm', N_("FILE"), 0,
/* TRANSLATORS: "memdisk" here isn't an identifier, it can be translated.
"embed" is a verb (command description). "*/
N_("embed FILE as a memdisk image"), 0},
/* TRANSLATORS: "embed" is a verb (command description). "*/
{"config", 'c', N_("FILE"), 0, N_("embed FILE as an early config"), 0},
/* TRANSLATORS: NOTE is a name of segment. */
{"note", 'n', 0, 0, N_("add NOTE segment for CHRP IEEE1275"), 0},
{"output", 'o', N_("FILE"), 0, N_("output a generated image to FILE [default=stdout]"), 0},
{"format", 'O', N_("FORMAT"), 0, 0, 0},
{"compression", 'C', "(xz|none|auto)", 0, N_("choose the compression to use"), 0},
{"verbose", 'v', 0, 0, N_("print verbose messages."), 0},
{ 0, 0, 0, 0, 0, 0 }
};
static char *
help_filter (int key, const char *text, void *input __attribute__ ((unused)))
{
switch (key)
{
case 'd':
return xasprintf (text, GRUB_PKGLIBDIR);
case 'p':
return xasprintf (text, DEFAULT_DIRECTORY);
case 'O':
{
int format_len = 0;
char *formats;
char *ptr;
char *ret;
unsigned i;
for (i = 0; i < ARRAY_SIZE (image_targets); i++)
format_len += strlen (image_targets[i].names[0]) + 2;
ptr = formats = xmalloc (format_len);
for (i = 0; i < ARRAY_SIZE (image_targets); i++)
{
strcpy (ptr, image_targets[i].names[0]);
ptr += strlen (image_targets[i].names[0]);
*ptr++ = ',';
*ptr++ = ' ';
}
ptr[-2] = 0;
ret = xasprintf ("%s\n%s %s", _("generate an image in format"),
_("available formats:"), formats);
free (formats);
return ret;
}
default:
return (char *) text;
}
}
struct arguments
{
size_t nmodules;
size_t modules_max;
char **modules;
char *output;
char *dir;
char *prefix;
char *memdisk;
char *font;
char *config;
int note;
struct image_target_desc *image_target;
grub_compression_t comp;
};
static error_t
argp_parser (int key, char *arg, struct argp_state *state)
{
/* Get the input argument from argp_parse, which we
know is a pointer to our arguments structure. */
struct arguments *arguments = state->input;
switch (key)
{
case 'o':
if (arguments->output)
free (arguments->output);
arguments->output = xstrdup (arg);
break;
case 'O':
{
unsigned i, j;
for (i = 0; i < ARRAY_SIZE (image_targets); i++)
for (j = 0; image_targets[i].names[j]
&& j < ARRAY_SIZE (image_targets[i].names); j++)
if (strcmp (arg, image_targets[i].names[j]) == 0)
arguments->image_target = &image_targets[i];
if (!arguments->image_target)
{
printf (_("unknown target format %s\n"), arg);
argp_usage (state);
exit (1);
}
break;
}
case 'd':
if (arguments->dir)
free (arguments->dir);
arguments->dir = xstrdup (arg);
break;
case 'n':
arguments->note = 1;
break;
case 'm':
if (arguments->memdisk)
free (arguments->memdisk);
arguments->memdisk = xstrdup (arg);
if (arguments->prefix)
free (arguments->prefix);
arguments->prefix = xstrdup ("(memdisk)/boot/grub");
break;
case 'c':
if (arguments->config)
free (arguments->config);
arguments->config = xstrdup (arg);
break;
case 'C':
if (grub_strcmp (arg, "xz") == 0)
{
#ifdef HAVE_LIBLZMA
arguments->comp = COMPRESSION_XZ;
#else
grub_util_error ("%s",
_("grub-mkimage is compiled without XZ support"));
#endif
}
else if (grub_strcmp (arg, "none") == 0)
arguments->comp = COMPRESSION_NONE;
else if (grub_strcmp (arg, "auto") == 0)
arguments->comp = COMPRESSION_AUTO;
else
grub_util_error (_("Unknown compression format %s"), arg);
break;
case 'p':
if (arguments->prefix)
free (arguments->prefix);
arguments->prefix = xstrdup (arg);
break;
case 'v':
verbosity++;
break;
case ARGP_KEY_ARG:
assert (arguments->nmodules < arguments->modules_max);
arguments->modules[arguments->nmodules++] = xstrdup(arg);
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
static struct argp argp = {
options, argp_parser, N_("[OPTION]... [MODULES]"),
N_("Make a bootable image of GRUB."),
NULL, help_filter, NULL
};
int
main (int argc, char *argv[])
{
FILE *fp = stdout;
struct arguments arguments;
set_program_name (argv[0]);
grub_util_init_nls ();
memset (&arguments, 0, sizeof (struct arguments));
arguments.comp = COMPRESSION_AUTO;
arguments.modules_max = argc + 1;
arguments.modules = xmalloc ((arguments.modules_max + 1)
* sizeof (arguments.modules[0]));
memset (arguments.modules, 0, (arguments.modules_max + 1)
* sizeof (arguments.modules[0]));
if (argp_parse (&argp, argc, argv, 0, 0, &arguments) != 0)
{
fprintf (stderr, "%s", _("Error in parsing command line arguments\n"));
exit(1);
}
if (!arguments.image_target)
{
char *program = xstrdup(program_name);
printf ("%s\n", _("Target format not specified (use the -O option)."));
argp_help (&argp, stderr, ARGP_HELP_STD_USAGE, program);
free (program);
exit(1);
}
if (arguments.output)
{
fp = fopen (arguments.output, "wb");
if (! fp)
grub_util_error (_("cannot open `%s': %s"), arguments.output,
strerror (errno));
free (arguments.output);
}
if (!arguments.dir)
{
arguments.dir = xmalloc (sizeof (GRUB_PKGLIBDIR)
+ grub_strlen (arguments.image_target->dirname)
+ 1);
memcpy (arguments.dir, GRUB_PKGLIBDIR,
sizeof (GRUB_PKGLIBDIR) - 1);
*(arguments.dir + sizeof (GRUB_PKGLIBDIR) - 1) = '/';
strcpy (arguments.dir + sizeof (GRUB_PKGLIBDIR),
arguments.image_target->dirname);
}
generate_image (arguments.dir, arguments.prefix ? : DEFAULT_DIRECTORY, fp,
arguments.output,
arguments.modules, arguments.memdisk, arguments.config,
arguments.image_target, arguments.note, arguments.comp);
fflush (fp);
fsync (fileno (fp));
fclose (fp);
if (arguments.dir)
free (arguments.dir);
return 0;
}
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