/* 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 . */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define _GNU_SOURCE 1 #include #include "progname.h" #define ALIGN_ADDR(x) (ALIGN_UP((x), image_target->voidp_sizeof)) #define TARGET_NO_FIELD 0xffffffff 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 } id; enum { PLATFORM_FLAGS_NONE = 0, PLATFORM_FLAGS_LZMA = 1 } flags; unsigned prefix; unsigned data_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; }; 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, .data_end = GRUB_KERNEL_I386_COREBOOT_DATA_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_COREBOOT_PREFIX, .data_end = GRUB_KERNEL_I386_COREBOOT_DATA_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, .data_end = GRUB_KERNEL_I386_PC_DATA_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, .data_end = GRUB_KERNEL_I386_EFI_DATA_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, }, { .name = "i386-ieee1275", .voidp_sizeof = 4, .bigendian = 0, .id = IMAGE_I386_IEEE1275, .flags = PLATFORM_FLAGS_NONE, .prefix = GRUB_KERNEL_I386_IEEE1275_PREFIX, .data_end = GRUB_KERNEL_I386_IEEE1275_DATA_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, .data_end = GRUB_KERNEL_I386_QEMU_DATA_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, .data_end = GRUB_KERNEL_X86_64_EFI_DATA_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_pe64_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, }, { .name = "mipsel-yeeloong-elf", .voidp_sizeof = 4, .bigendian = 0, .id = IMAGE_YEELOONG_ELF, .flags = PLATFORM_FLAGS_NONE, .prefix = GRUB_KERNEL_MIPS_YEELOONG_PREFIX, .data_end = GRUB_KERNEL_MIPS_YEELOONG_DATA_END, .raw_size = GRUB_KERNEL_MIPS_YEELOONG_RAW_SIZE, .total_module_size = GRUB_KERNEL_MIPS_YEELOONG_TOTAL_MODULE_SIZE, .compressed_size = GRUB_KERNEL_MIPS_YEELOONG_COMPRESSED_SIZE, .kernel_image_size = GRUB_KERNEL_MIPS_YEELOONG_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_MIPS_YEELOONG_LINK_ADDR, .elf_target = EM_MIPS, .link_align = GRUB_KERNEL_MIPS_YEELOONG_LINK_ALIGN }, { .name = "powerpc-ieee1275", .voidp_sizeof = 4, .bigendian = 1, .id = IMAGE_PPC, .flags = PLATFORM_FLAGS_NONE, .prefix = GRUB_KERNEL_POWERPC_IEEE1275_PREFIX, .data_end = GRUB_KERNEL_POWERPC_IEEE1275_DATA_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, .data_end = GRUB_KERNEL_SPARC64_IEEE1275_DATA_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, .data_end = GRUB_KERNEL_SPARC64_IEEE1275_DATA_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 }, }; #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 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; } static void compress_kernel (struct image_target_desc *image_target, char *kernel_img, size_t kernel_size, char **core_img, size_t *core_size) { if (image_target->flags & PLATFORM_FLAGS_LZMA) { compress_kernel_lzma (kernel_img, kernel_size, core_img, core_size, image_target->raw_size); return; } *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 *font_path, char *config_path, struct image_target_desc *image_target, int note) { char *kernel_img, *core_img; size_t kernel_size, total_module_size, core_size, exec_size; size_t memdisk_size = 0, font_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; 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 (font_path) { font_size = ALIGN_ADDR (grub_util_get_image_size (font_path)); total_module_size += font_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->data_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 (font_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_FONT); header->size = grub_host_to_target32 (font_size + sizeof (*header)); offset += sizeof (*header); grub_util_load_image (font_path, kernel_img + offset); offset += font_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; } 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); grub_util_info ("the core size is 0x%x", core_size); if (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); } switch (image_target->id) { case IMAGE_I386_PC: { 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")); 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 = 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); 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); if (image_target->voidp_sizeof == 4) c->machine = grub_host_to_target16 (GRUB_PE32_MACHINE_I386); else c->machine = grub_host_to_target16 (GRUB_PE32_MACHINE_X86_64); 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_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'}, {"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\ -f, --font=FILE embed FILE as a boot font\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\ -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; set_program_name (argv[0]); grub_util_init_nls (); while (1) { int c = getopt_long (argc, argv, "d:p:m:c:o:O:f: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 'f': if (font) free (font); font = xstrdup (optarg); break; case 'c': if (config) free (config); config = xstrdup (optarg); break; case 'h': usage (0); break; case 'p': if (prefix) free (prefix); prefix = xstrdup (optarg); break; case 'V': printf ("grub-mkimage (%s) %s\n", 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, font, config, image_target, note); fclose (fp); if (dir) free (dir); return 0; }