/* 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 #include #include #include #include #define _GNU_SOURCE 1 #include #include "progname.h" #define ALIGN_ADDR(x) (ALIGN_UP((x), image_target->voidp_sizeof)) #ifdef HAVE_LIBLZMA #include #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_SPARC64_CDCORE, 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 EFI32_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) #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 = EFI32_HEADER_SIZE, .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-cdcore", NULL }, .voidp_sizeof = 8, .bigendian = 1, .id = IMAGE_SPARC64_CDCORE, .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, .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 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; }; #pragma GCC diagnostic ignored "-Wcast-align" #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 **pubkey_paths, size_t npubkeys, 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); { size_t i; for (i = 0; i < npubkeys; i++) { size_t curs; curs = ALIGN_ADDR (grub_util_get_image_size (pubkey_paths[i])); grub_util_info ("the size of public key %zd is 0x%llx", i, (unsigned long long) curs); total_module_size += curs + sizeof (struct grub_module_header); } } 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; } { size_t i; for (i = 0; i < npubkeys; i++) { size_t curs; struct grub_module_header *header; curs = grub_util_get_image_size (pubkey_paths[i]); header = (struct grub_module_header *) (kernel_img + offset); memset (header, 0, sizeof (struct grub_module_header)); header->type = grub_host_to_target32 (OBJ_TYPE_PUBKEY); header->size = grub_host_to_target32 (curs + sizeof (*header)); offset += sizeof (*header); grub_util_load_image (pubkey_paths[i], kernel_img + offset); offset += ALIGN_ADDR (curs); } } 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: if (GRUB_KERNEL_I386_PC_LINK_ADDR + core_size > 0x78000 || (core_size > (0xffff << GRUB_DISK_SECTOR_BITS)) || (kernel_size + bss_size + GRUB_KERNEL_I386_PC_LINK_ADDR > 0x68000)) grub_util_error (_("core image is too big (0x%x > 0x%x)"), GRUB_KERNEL_I386_PC_LINK_ADDR + core_size, 0x78000); /* fallthrough */ case IMAGE_COREBOOT: case IMAGE_QEMU: if (kernel_size + bss_size + GRUB_KERNEL_I386_PC_LINK_ADDR > 0x68000) grub_util_error (_("kernel image is too big (0x%x > 0x%x)"), kernel_size + bss_size + GRUB_KERNEL_I386_PC_LINK_ADDR, 0x68000); break; case IMAGE_LOONGSON_ELF: case IMAGE_YEELOONG_FLASH: case IMAGE_FULOONG2F_FLASH: case IMAGE_EFI: case IMAGE_MIPS_ARC: case IMAGE_QEMU_MIPS_FLASH: break; case IMAGE_SPARC64_AOUT: case IMAGE_SPARC64_RAW: case IMAGE_SPARC64_CDCORE: case IMAGE_I386_IEEE1275: case IMAGE_PPC: break; } switch (image_target->id) { case IMAGE_I386_PC: case IMAGE_I386_PC_PXE: { unsigned num; char *boot_path, *boot_img; size_t boot_size; 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 = EFI32_HEADER_SIZE; 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_target64 (0x10000); o->stack_commit_size = grub_host_to_target64 (0x10000); o->heap_reserve_size = grub_host_to_target64 (0x10000); o->heap_commit_size = grub_host_to_target64 (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_SPARC64_CDCORE: 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] = { 0x11, 0x7f, 0xfd, 0x7e, 0xd9, 0xbb, 0x82, 0xe7, 0x5f, 0xcc, 0xbf, 0x09, 0x1d, 0xfe, 0xfa, 0xd5, 0x97, 0xfb, 0xbb, 0xd8, 0x76, 0x4b, 0xfc, 0x0a, 0x4e, 0x3c, 0x91, 0x06, 0x98, 0xa0, 0xe0, 0xda, 0x4f, 0x74, 0x17, 0x6f, 0x95, 0xd2, 0xec, 0x1b, 0x7f, 0x12, 0x80, 0x23, 0xcb, 0xa0, 0x2d, 0x59, 0x15, 0x82, 0x70, 0x3d, 0x23, 0xbf, 0xee, 0x93, 0x5e, 0x5c, 0xbd, 0x1c, 0x51, 0x0b, 0x0b, 0x45 }; const grub_uint8_t fuloong2f_fwstart_good_hash[512 / 8] = { 0x76, 0x9b, 0xad, 0x6e, 0xa2, 0x39, 0x47, 0x62, 0x1f, 0xc9, 0x3a, 0x6d, 0x05, 0x5c, 0x43, 0x5c, 0x29, 0x4a, 0x7e, 0x08, 0x2a, 0x31, 0x8f, 0x5d, 0x02, 0x84, 0xa0, 0x85, 0xf2, 0xd1, 0xb9, 0x53, 0xa2, 0xbc, 0xf2, 0xe1, 0x39, 0x1e, 0x51, 0xb5, 0xaf, 0xec, 0x9e, 0xf2, 0xf1, 0xf3, 0x0a, 0x2f, 0xe6, 0xf1, 0x08, 0x89, 0xbe, 0xbc, 0x73, 0xab, 0x46, 0x50, 0xd6, 0x21, 0xce, 0x8e, 0x24, 0xa7 }; 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 - decompress_size); else target_addr = ALIGN_UP (image_target->link_addr + kernel_size + total_module_size, 32); 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); if (image_target->id == IMAGE_COREBOOT) target_addr_mods = GRUB_KERNEL_I386_COREBOOT_MODULES_ADDR; else 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/]"), 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\n" "Implies `-p (memdisk)/boot/grub' but prefix can be overridden by " "later options"), 0}, /* TRANSLATORS: "embed" is a verb (command description). "*/ {"config", 'c', N_("FILE"), 0, N_("embed FILE as an early config"), 0}, /* TRANSLATORS: "embed" is a verb (command description). "*/ {"pubkey", 'k', N_("FILE"), 0, N_("embed FILE as public key for signature checking"), 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 for core image"), 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 **pubkeys; size_t npubkeys; 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 'k': arguments->pubkeys = xrealloc (arguments->pubkeys, sizeof (arguments->pubkeys[0]) * (arguments->npubkeys + 1)); arguments->pubkeys[arguments->npubkeys++] = xstrdup (arg); 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)); } 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.pubkeys, arguments.npubkeys, arguments.config, arguments.image_target, arguments.note, arguments.comp); fflush (fp); fsync (fileno (fp)); fclose (fp); if (arguments.dir) free (arguments.dir); if (arguments.output) free (arguments.output); return 0; }