99ce1597a4
* grub-core/Makefile.core.def (xnu): Add file lzss.c * grub-core/loader/lzss.c: New file. * grub-core/loader/xnu.c (grub_xnu_load_driver): Close binaryfile on Mach-O open failure. * grub-core/loader/macho.c (grub_macho_close): Free uncompressedXX. Don't free cmdsXX in uncompressedXX is set. (grub_macho_file): Init new fields. New argument is_64bit. All users updated. Handle compressed. Error out if no suitable architecture is found. Don't close file. (grub_macho_open): New argument is_64bit. All users updated. * grub-core/loader/macho32.c: Add defines for new fields. * grub-core/loader/macho64.c: Likewise. * grub-core/loader/machoXX.c (grub_macho_contains_macho): Make static. (grub_macho_parse): Handle compressed. Defer actual processing if compressed. (grub_macho_cmds_iterate): Decompress if compressed. New argument "filename". All users updated. (grub_macho_size): New argument "filename". All users updated. (grub_macho_get_entry_point): Likewise. (grub_macho_load): Handle compressed. * include/grub/macho.h (grub_macho_lzss_header): New struct. (GRUB_MACHO_LZSS_OFFSET): New define. (grub_decompress_lzss): New proto. * include/grub/machoload.h (grub_macho_file): New fields to handle compressed. (grub_macho_contains_macho64): Remove proto. (grub_macho_contains_macho32): Likewise. * util/grub.d/30_os-prober.in: Use kernel cache if available.
140 lines
3.7 KiB
C
140 lines
3.7 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_MACHO_H
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#define GRUB_MACHO_H 1
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#include <grub/types.h>
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/* Multi-architecture header. Always in big-endian. */
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struct grub_macho_fat_header
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{
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grub_uint32_t magic;
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grub_uint32_t nfat_arch;
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} __attribute__ ((packed));
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#define GRUB_MACHO_FAT_MAGIC 0xcafebabe
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typedef grub_uint32_t grub_macho_cpu_type_t;
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typedef grub_uint32_t grub_macho_cpu_subtype_t;
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/* Architecture descriptor. Always in big-endian. */
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struct grub_macho_fat_arch
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{
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grub_macho_cpu_type_t cputype;
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grub_macho_cpu_subtype_t cpusubtype;
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grub_uint32_t offset;
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grub_uint32_t size;
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grub_uint32_t align;
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} __attribute__ ((packed));
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/* File header for 32-bit. Always in native-endian. */
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struct grub_macho_header32
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{
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#define GRUB_MACHO_MAGIC32 0xfeedface
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grub_uint32_t magic;
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grub_macho_cpu_type_t cputype;
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grub_macho_cpu_subtype_t cpusubtype;
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grub_uint32_t filetype;
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grub_uint32_t ncmds;
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grub_uint32_t sizeofcmds;
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grub_uint32_t flags;
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} __attribute__ ((packed));
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/* File header for 64-bit. Always in native-endian. */
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struct grub_macho_header64
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{
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#define GRUB_MACHO_MAGIC64 0xfeedfacf
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grub_uint32_t magic;
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grub_macho_cpu_type_t cputype;
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grub_macho_cpu_subtype_t cpusubtype;
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grub_uint32_t filetype;
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grub_uint32_t ncmds;
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grub_uint32_t sizeofcmds;
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grub_uint32_t flags;
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grub_uint32_t reserved;
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} __attribute__ ((packed));
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/* Common header of Mach-O commands. */
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struct grub_macho_cmd
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{
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grub_uint32_t cmd;
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grub_uint32_t cmdsize;
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} __attribute__ ((packed));
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typedef grub_uint32_t grub_macho_vmprot_t;
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/* 32-bit segment command. */
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struct grub_macho_segment32
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{
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#define GRUB_MACHO_CMD_SEGMENT32 1
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grub_uint32_t cmd;
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grub_uint32_t cmdsize;
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grub_uint8_t segname[16];
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grub_uint32_t vmaddr;
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grub_uint32_t vmsize;
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grub_uint32_t fileoff;
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grub_uint32_t filesize;
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grub_macho_vmprot_t maxprot;
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grub_macho_vmprot_t initprot;
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grub_uint32_t nsects;
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grub_uint32_t flags;
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} __attribute__ ((packed));
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/* 64-bit segment command. */
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struct grub_macho_segment64
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{
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#define GRUB_MACHO_CMD_SEGMENT64 0x19
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grub_uint32_t cmd;
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grub_uint32_t cmdsize;
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grub_uint8_t segname[16];
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grub_uint64_t vmaddr;
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grub_uint64_t vmsize;
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grub_uint64_t fileoff;
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grub_uint64_t filesize;
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grub_macho_vmprot_t maxprot;
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grub_macho_vmprot_t initprot;
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grub_uint32_t nsects;
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grub_uint32_t flags;
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} __attribute__ ((packed));
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#define GRUB_MACHO_CMD_THREAD 5
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struct grub_macho_lzss_header
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{
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char magic[8];
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#define GRUB_MACHO_LZSS_MAGIC "complzss"
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grub_uint32_t unused;
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grub_uint32_t uncompressed_size;
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grub_uint32_t compressed_size;
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};
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/* Convenience union. What do we need to load to identify the file type. */
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union grub_macho_filestart
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{
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struct grub_macho_fat_header fat;
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struct grub_macho_header32 thin32;
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struct grub_macho_header64 thin64;
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struct grub_macho_lzss_header lzss;
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} __attribute__ ((packed));
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#define GRUB_MACHO_LZSS_OFFSET 0x180
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grub_size_t
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grub_decompress_lzss (grub_uint8_t *dst, grub_uint8_t *dstend,
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grub_uint8_t *src, grub_uint8_t *srcend);
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#endif
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