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grub/util/grub-mkimage.c

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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/dl.h>
#include <time.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 <getopt.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
} grub_compression_t;
struct image_target_desc
{
const char *name;
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_YEELOONG_ELF, IMAGE_QEMU, IMAGE_PPC, IMAGE_YEELOONG_FLASH,
IMAGE_I386_PC_PXE
} id;
enum
{
PLATFORM_FLAGS_NONE = 0,
PLATFORM_FLAGS_LZMA = 1,
PLATFORM_FLAGS_DECOMPRESSORS = 2
} flags;
unsigned prefix;
unsigned prefix_end;
unsigned raw_size;
unsigned total_module_size;
unsigned kernel_image_size;
unsigned compressed_size;
unsigned link_align;
grub_uint16_t elf_target;
unsigned section_align;
signed vaddr_offset;
unsigned install_dos_part, install_bsd_part;
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[] =
{
{
.name = "i386-coreboot",
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_COREBOOT,
.flags = PLATFORM_FLAGS_NONE,
.prefix = GRUB_KERNEL_I386_COREBOOT_PREFIX,
.prefix_end = GRUB_KERNEL_I386_COREBOOT_PREFIX_END,
.raw_size = 0,
.total_module_size = TARGET_NO_FIELD,
.kernel_image_size = TARGET_NO_FIELD,
.compressed_size = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.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
},
{
.name = "i386-multiboot",
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_COREBOOT,
.flags = PLATFORM_FLAGS_NONE,
.prefix = GRUB_KERNEL_I386_MULTIBOOT_PREFIX,
.prefix_end = GRUB_KERNEL_I386_MULTIBOOT_PREFIX_END,
.raw_size = 0,
.total_module_size = TARGET_NO_FIELD,
.kernel_image_size = TARGET_NO_FIELD,
.compressed_size = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.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
},
{
.name = "i386-pc",
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_I386_PC,
.flags = PLATFORM_FLAGS_LZMA,
.prefix = GRUB_KERNEL_I386_PC_PREFIX,
.prefix_end = GRUB_KERNEL_I386_PC_PREFIX_END,
.raw_size = GRUB_KERNEL_I386_PC_RAW_SIZE,
.total_module_size = GRUB_KERNEL_I386_PC_TOTAL_MODULE_SIZE,
.kernel_image_size = GRUB_KERNEL_I386_PC_KERNEL_IMAGE_SIZE,
.compressed_size = GRUB_KERNEL_I386_PC_COMPRESSED_SIZE,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = GRUB_KERNEL_I386_PC_INSTALL_DOS_PART,
.install_bsd_part = GRUB_KERNEL_I386_PC_INSTALL_BSD_PART,
.link_addr = GRUB_KERNEL_I386_PC_LINK_ADDR
},
{
.name = "i386-pc-pxe",
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_I386_PC_PXE,
.flags = PLATFORM_FLAGS_LZMA,
.prefix = GRUB_KERNEL_I386_PC_PREFIX,
.prefix_end = GRUB_KERNEL_I386_PC_PREFIX_END,
.raw_size = GRUB_KERNEL_I386_PC_RAW_SIZE,
.total_module_size = GRUB_KERNEL_I386_PC_TOTAL_MODULE_SIZE,
.kernel_image_size = GRUB_KERNEL_I386_PC_KERNEL_IMAGE_SIZE,
.compressed_size = GRUB_KERNEL_I386_PC_COMPRESSED_SIZE,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = GRUB_KERNEL_I386_PC_INSTALL_DOS_PART,
.install_bsd_part = GRUB_KERNEL_I386_PC_INSTALL_BSD_PART,
.link_addr = GRUB_KERNEL_I386_PC_LINK_ADDR
},
{
.name = "i386-efi",
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_EFI,
.flags = PLATFORM_FLAGS_NONE,
.prefix = GRUB_KERNEL_I386_EFI_PREFIX,
.prefix_end = GRUB_KERNEL_I386_EFI_PREFIX_END,
.raw_size = 0,
.total_module_size = TARGET_NO_FIELD,
.kernel_image_size = TARGET_NO_FIELD,
.compressed_size = 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),
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.pe_target = GRUB_PE32_MACHINE_I386,
.elf_target = EM_386,
},
{
.name = "i386-ieee1275",
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_I386_IEEE1275,
.flags = PLATFORM_FLAGS_NONE,
.prefix = GRUB_KERNEL_I386_IEEE1275_PREFIX,
.prefix_end = GRUB_KERNEL_I386_IEEE1275_PREFIX_END,
.raw_size = 0,
.total_module_size = TARGET_NO_FIELD,
.kernel_image_size = TARGET_NO_FIELD,
.compressed_size = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.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,
},
{
.name = "i386-qemu",
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_QEMU,
.flags = PLATFORM_FLAGS_NONE,
.prefix = GRUB_KERNEL_I386_QEMU_PREFIX,
.prefix_end = GRUB_KERNEL_I386_QEMU_PREFIX_END,
.raw_size = 0,
.total_module_size = TARGET_NO_FIELD,
.compressed_size = TARGET_NO_FIELD,
.kernel_image_size = GRUB_KERNEL_I386_QEMU_KERNEL_IMAGE_SIZE,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.link_addr = GRUB_KERNEL_I386_QEMU_LINK_ADDR
},
{
.name = "x86_64-efi",
.voidp_sizeof = 8,
.bigendian = 0,
.id = IMAGE_EFI,
.flags = PLATFORM_FLAGS_NONE,
.prefix = GRUB_KERNEL_X86_64_EFI_PREFIX,
.prefix_end = GRUB_KERNEL_X86_64_EFI_PREFIX_END,
.raw_size = 0,
.total_module_size = TARGET_NO_FIELD,
.kernel_image_size = TARGET_NO_FIELD,
.compressed_size = TARGET_NO_FIELD,
.section_align = GRUB_PE32_SECTION_ALIGNMENT,
.vaddr_offset = EFI64_HEADER_SIZE,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.pe_target = GRUB_PE32_MACHINE_X86_64,
.elf_target = EM_X86_64,
},
{
.name = "mipsel-yeeloong-flash",
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_YEELOONG_FLASH,
.flags = PLATFORM_FLAGS_DECOMPRESSORS,
.prefix = GRUB_KERNEL_MIPS_YEELOONG_PREFIX,
.prefix_end = GRUB_KERNEL_MIPS_YEELOONG_PREFIX_END,
.raw_size = 0,
.total_module_size = GRUB_KERNEL_MIPS_YEELOONG_TOTAL_MODULE_SIZE,
.compressed_size = TARGET_NO_FIELD,
.kernel_image_size = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.link_addr = GRUB_KERNEL_MIPS_YEELOONG_LINK_ADDR,
.elf_target = EM_MIPS,
.link_align = GRUB_KERNEL_MIPS_YEELOONG_LINK_ALIGN,
.default_compression = COMPRESSION_NONE
},
{
.name = "mipsel-yeeloong-elf",
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_YEELOONG_ELF,
.flags = PLATFORM_FLAGS_DECOMPRESSORS,
.prefix = GRUB_KERNEL_MIPS_YEELOONG_PREFIX,
.prefix_end = GRUB_KERNEL_MIPS_YEELOONG_PREFIX_END,
.raw_size = 0,
.total_module_size = GRUB_KERNEL_MIPS_YEELOONG_TOTAL_MODULE_SIZE,
.compressed_size = TARGET_NO_FIELD,
.kernel_image_size = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.link_addr = GRUB_KERNEL_MIPS_YEELOONG_LINK_ADDR,
.elf_target = EM_MIPS,
.link_align = GRUB_KERNEL_MIPS_YEELOONG_LINK_ALIGN,
.default_compression = COMPRESSION_NONE
},
{
.name = "powerpc-ieee1275",
.voidp_sizeof = 4,
.bigendian = 1,
.id = IMAGE_PPC,
.flags = PLATFORM_FLAGS_NONE,
.prefix = GRUB_KERNEL_POWERPC_IEEE1275_PREFIX,
.prefix_end = GRUB_KERNEL_POWERPC_IEEE1275_PREFIX_END,
.raw_size = 0,
.total_module_size = TARGET_NO_FIELD,
.kernel_image_size = TARGET_NO_FIELD,
.compressed_size = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.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
},
{
.name = "sparc64-ieee1275-raw",
.voidp_sizeof = 8,
.bigendian = 1,
.id = IMAGE_SPARC64_RAW,
.flags = PLATFORM_FLAGS_NONE,
.prefix = GRUB_KERNEL_SPARC64_IEEE1275_PREFIX,
.prefix_end = GRUB_KERNEL_SPARC64_IEEE1275_PREFIX_END,
.raw_size = GRUB_KERNEL_SPARC64_IEEE1275_RAW_SIZE,
.total_module_size = GRUB_KERNEL_SPARC64_IEEE1275_TOTAL_MODULE_SIZE,
.kernel_image_size = GRUB_KERNEL_SPARC64_IEEE1275_KERNEL_IMAGE_SIZE,
.compressed_size = GRUB_KERNEL_SPARC64_IEEE1275_COMPRESSED_SIZE,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.link_addr = GRUB_KERNEL_SPARC64_IEEE1275_LINK_ADDR
},
{
.name = "sparc64-ieee1275-aout",
.voidp_sizeof = 8,
.bigendian = 1,
.id = IMAGE_SPARC64_AOUT,
.flags = PLATFORM_FLAGS_NONE,
.prefix = GRUB_KERNEL_SPARC64_IEEE1275_PREFIX,
.prefix_end = GRUB_KERNEL_SPARC64_IEEE1275_PREFIX_END,
.raw_size = GRUB_KERNEL_SPARC64_IEEE1275_RAW_SIZE,
.total_module_size = GRUB_KERNEL_SPARC64_IEEE1275_TOTAL_MODULE_SIZE,
.kernel_image_size = GRUB_KERNEL_SPARC64_IEEE1275_KERNEL_IMAGE_SIZE,
.compressed_size = GRUB_KERNEL_SPARC64_IEEE1275_COMPRESSED_SIZE,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.link_addr = GRUB_KERNEL_SPARC64_IEEE1275_LINK_ADDR
},
{
.name = "ia64-efi",
.voidp_sizeof = 8,
.bigendian = 0,
.id = IMAGE_EFI,
.flags = PLATFORM_FLAGS_NONE,
.prefix = GRUB_KERNEL_IA64_EFI_PREFIX,
.prefix_end = GRUB_KERNEL_IA64_EFI_PREFIX_END,
.raw_size = 0,
.total_module_size = TARGET_NO_FIELD,
.kernel_image_size = TARGET_NO_FIELD,
.compressed_size = TARGET_NO_FIELD,
.section_align = GRUB_PE32_SECTION_ALIGNMENT,
.vaddr_offset = EFI64_HEADER_SIZE,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.pe_target = GRUB_PE32_MACHINE_IA64,
.elf_target = EM_IA_64,
},
};
#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, size_t raw_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;
if (kernel_size < raw_size)
grub_util_error (_("the core image is too small"));
*core_img = xmalloc (kernel_size);
memcpy (*core_img, kernel_img, raw_size);
*core_size = kernel_size - raw_size;
if (LzmaEncode ((unsigned char *) *core_img + raw_size, core_size,
(unsigned char *) kernel_img + raw_size,
kernel_size - raw_size,
&props, out_props, &out_props_size,
0, NULL, &g_Alloc, &g_Alloc) != SZ_OK)
grub_util_error (_("cannot compress the kernel image"));
*core_size += raw_size;
}
#ifdef HAVE_LIBLZMA
static void
compress_kernel_xz (char *kernel_img, size_t kernel_size,
char **core_img, size_t *core_size, size_t raw_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}
};
if (kernel_size < raw_size)
grub_util_error (_("the core image is too small"));
xzret = lzma_stream_encoder (&strm, fltrs, LZMA_CHECK_NONE);
if (xzret != LZMA_OK)
grub_util_error (_("cannot compress the kernel image"));
*core_img = xmalloc (kernel_size);
memcpy (*core_img, kernel_img, raw_size);
*core_size = kernel_size - raw_size;
strm.next_in = (unsigned char *) kernel_img + raw_size;
strm.avail_in = kernel_size - raw_size;
strm.next_out = (unsigned char *) *core_img + raw_size;
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 (_("cannot compress the kernel image"));
}
*core_size -= strm.avail_out;
*core_size += raw_size;
}
#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_LZMA)
{
compress_kernel_lzma (kernel_img, kernel_size, core_img,
core_size, image_target->raw_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, image_target->raw_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, char *prefix, FILE *out, 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;
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;
grub_size_t reloc_size, align;
if (comp == COMPRESSION_AUTO)
comp = image_target->default_compression;
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%x", 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%x", config_size);
total_module_size += config_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%x", 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->prefix + strlen (prefix) + 1 > image_target->prefix_end)
grub_util_error (_("prefix is too long"));
strcpy (kernel_img + image_target->prefix, prefix);
if (image_target->voidp_sizeof == 8)
{
/* Fill in the grub_module_info structure. */
struct grub_module_info64 *modinfo;
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);
offset = kernel_size + sizeof (struct grub_module_info64);
}
else
{
/* Fill in the grub_module_info structure. */
struct grub_module_info32 *modinfo;
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);
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 ((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);
grub_util_info ("kernel_img=%p, kernel_size=0x%x", kernel_img, kernel_size);
compress_kernel (image_target, kernel_img, kernel_size + total_module_size,
&core_img, &core_size, comp);
grub_util_info ("the core size is 0x%x", 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->kernel_image_size != TARGET_NO_FIELD)
*((grub_uint32_t *) (core_img + image_target->kernel_image_size))
= grub_host_to_target32 (kernel_size);
if (image_target->compressed_size != TARGET_NO_FIELD)
*((grub_uint32_t *) (core_img + image_target->compressed_size))
= grub_host_to_target32 (core_size - image_target->raw_size);
/* If we included a drive in our prefix, let GRUB know it doesn't have to
prepend the drive told by BIOS. */
if (image_target->install_dos_part != TARGET_NO_FIELD
&& image_target->install_bsd_part != TARGET_NO_FIELD && prefix[0] == '(')
{
*((grub_int32_t *) (core_img + image_target->install_dos_part))
= grub_host_to_target32 (-2);
*((grub_int32_t *) (core_img + image_target->install_bsd_part))
= grub_host_to_target32 (-2);
}
if (image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS)
{
char *full_img;
size_t full_size;
char *decompress_path, *decompress_img;
size_t decompress_size;
const char *name;
switch (comp)
{
case COMPRESSION_XZ:
name = "xz_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);
*((grub_uint32_t *) (decompress_img + GRUB_KERNEL_MIPS_YEELOONG_COMPRESSED_SIZE))
= grub_host_to_target32 (core_size);
*((grub_uint32_t *) (decompress_img + GRUB_KERNEL_MIPS_YEELOONG_UNCOMPRESSED_SIZE))
= grub_host_to_target32 (kernel_size + total_module_size);
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 > GRUB_MEMORY_I386_PC_UPPER)
grub_util_error (_("core image is too big (%p > %p)"),
GRUB_KERNEL_I386_PC_LINK_ADDR + core_size,
GRUB_MEMORY_I386_PC_UPPER);
num = ((core_size + GRUB_DISK_SECTOR_SIZE - 1) >> GRUB_DISK_SECTOR_BITS);
if (num > 0xffff)
grub_util_error (_("the core image is too big"));
if (image_target->id == IMAGE_I386_PC_PXE)
{
char *pxeboot_path, *pxeboot_img;
size_t pxeboot_size;
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);
free (pxeboot_img);
free (pxeboot_path);
}
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);
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 (pe_img + header_size, core_img, core_size);
memcpy (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;
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 (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 is not one 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);
free (boot_img);
free (boot_path);
}
break;
case IMAGE_YEELOONG_FLASH:
{
char *rom_img;
size_t rom_size;
char *boot_path, *boot_img;
size_t boot_size;
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);
rom_size = ALIGN_UP (core_size + boot_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_YEELOONG_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_YEELOONG_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_YEELOONG_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_YEELOONG_ELF)
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_YEELOONG_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_YEELOONG_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 = (struct grub_ieee1275_note *)
(elf_img + program_size + header_size);
grub_util_info ("adding CHRP NOTE segment");
note->header.namesz = grub_host_to_target32 (sizeof (GRUB_IEEE1275_NOTE_NAME));
note->header.descsz = grub_host_to_target32 (note_size);
note->header.type = grub_host_to_target32 (GRUB_IEEE1275_NOTE_TYPE);
strcpy (note->header.name, GRUB_IEEE1275_NOTE_NAME);
note->descriptor.real_mode = grub_host_to_target32 (0xffffffff);
note->descriptor.real_base = grub_host_to_target32 (0x00c00000);
note->descriptor.real_size = grub_host_to_target32 (0xffffffff);
note->descriptor.virt_base = grub_host_to_target32 (0xffffffff);
note->descriptor.virt_size = grub_host_to_target32 (0xffffffff);
note->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);
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'},
{"prefix", required_argument, 0, 'p'},
{"memdisk", required_argument, 0, 'm'},
{"font", required_argument, 0, 'f'},
{"config", required_argument, 0, 'c'},
{"output", required_argument, 0, 'o'},
{"note", no_argument, 0, 'n'},
{"format", required_argument, 0, 'O'},
{"compression", required_argument, 0, 'C'},
{"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 `%s --help' for more information.\n"), program_name);
else
{
int format_len = 0;
char *formats;
char *ptr;
unsigned i;
for (i = 0; i < ARRAY_SIZE (image_targets); i++)
format_len += strlen (image_targets[i].name) + 2;
ptr = formats = xmalloc (format_len);
for (i = 0; i < ARRAY_SIZE (image_targets); i++)
{
strcpy (ptr, image_targets[i].name);
ptr += strlen (image_targets[i].name);
*ptr++ = ',';
*ptr++ = ' ';
}
ptr[-2] = 0;
printf (_("\
Usage: %s [OPTION]... [MODULES]\n\
\n\
Make a bootable image of GRUB.\n\
\n\
-d, --directory=DIR use images and modules under DIR [default=%s/@platform@]\n\
-p, --prefix=DIR set grub_prefix directory [default=%s]\n\
-m, --memdisk=FILE embed FILE as a memdisk image\n\
-c, --config=FILE embed FILE as boot config\n\
-n, --note add NOTE segment for CHRP Open Firmware\n\
-o, --output=FILE output a generated image to FILE [default=stdout]\n\
-O, --format=FORMAT generate an image in format\n\
available formats: %s\n\
-C, --compression=(xz|none|auto) choose the compression to use\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\
"),
program_name, GRUB_PKGLIBROOTDIR, DEFAULT_DIRECTORY,
formats,
PACKAGE_BUGREPORT);
free (formats);
}
exit (status);
}
int
main (int argc, char *argv[])
{
char *output = NULL;
char *dir = NULL;
char *prefix = NULL;
char *memdisk = NULL;
char *font = NULL;
char *config = NULL;
FILE *fp = stdout;
int note = 0;
struct image_target_desc *image_target = NULL;
grub_compression_t comp = COMPRESSION_AUTO;
set_program_name (argv[0]);
grub_util_init_nls ();
while (1)
{
int c = getopt_long (argc, argv, "d:p:m:c:o:O:f:C:hVvn", options, 0);
if (c == -1)
break;
else
switch (c)
{
case 'o':
if (output)
free (output);
output = xstrdup (optarg);
break;
case 'O':
{
unsigned i;
for (i = 0; i < ARRAY_SIZE (image_targets); i++)
if (strcmp (optarg, image_targets[i].name) == 0)
image_target = &image_targets[i];
if (!image_target)
{
printf ("unknown target format %s\n", optarg);
usage (1);
}
break;
}
case 'd':
if (dir)
free (dir);
dir = xstrdup (optarg);
break;
case 'n':
note = 1;
break;
case 'm':
if (memdisk)
free (memdisk);
memdisk = xstrdup (optarg);
if (prefix)
free (prefix);
prefix = xstrdup ("(memdisk)/boot/grub");
break;
case 'c':
if (config)
free (config);
config = xstrdup (optarg);
break;
case 'C':
if (grub_strcmp (optarg, "xz") == 0)
{
#ifdef HAVE_LIBLZMA
comp = COMPRESSION_XZ;
#else
grub_util_error ("grub-mkimage is compiled without XZ support",
optarg);
#endif
}
else if (grub_strcmp (optarg, "none") == 0)
comp = COMPRESSION_NONE;
else
grub_util_error ("Unknown compression format %s", optarg);
break;
case 'h':
usage (0);
break;
case 'p':
if (prefix)
free (prefix);
prefix = xstrdup (optarg);
break;
case 'V':
printf ("%s (%s) %s\n", program_name, PACKAGE_NAME, PACKAGE_VERSION);
return 0;
case 'v':
verbosity++;
break;
default:
usage (1);
break;
}
}
if (!image_target)
{
printf ("Target format not specified (use the -O option).\n");
usage (1);
}
if (output)
{
fp = fopen (output, "wb");
if (! fp)
grub_util_error (_("cannot open %s"), output);
free (output);
}
if (!dir)
{
const char *last;
last = strchr (image_target->name, '-');
if (last)
last = strchr (last + 1, '-');
if (!last)
last = image_target->name + strlen (image_target->name);
dir = xmalloc (sizeof (GRUB_PKGLIBROOTDIR) + (last - image_target->name)
+ 1);
memcpy (dir, GRUB_PKGLIBROOTDIR, sizeof (GRUB_PKGLIBROOTDIR) - 1);
*(dir + sizeof (GRUB_PKGLIBROOTDIR) - 1) = '/';
memcpy (dir + sizeof (GRUB_PKGLIBROOTDIR), image_target->name,
last - image_target->name);
*(dir + sizeof (GRUB_PKGLIBROOTDIR) + (last - image_target->name)) = 0;
}
generate_image (dir, prefix ? : DEFAULT_DIRECTORY, fp,
argv + optind, memdisk, config,
image_target, note, comp);
fclose (fp);
if (dir)
free (dir);
return 0;
}
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