7fd0baee0f
* bus/usb/usbhub.c: Fix capitalization, fullstop and newlines in grub_errno calls. * commands/acpi.c: Likewise. * commands/blocklist.c: Likewise. * commands/efi/loadbios.c: Likewise. * commands/i386/pc/drivemap.c: Likewise. * commands/loadenv.c: Likewise. * commands/memrw.c: Likewise. * commands/password.c: Likewise. * commands/videotest.c: Likewise. * disk/ata.c: Likewise. * disk/ata_pthru.c: Likewise. * disk/dmraid_nvidia.c: Likewise. * disk/ieee1275/nand.c: Likewise. * disk/ieee1275/ofdisk.c: Likewise. * disk/loopback.c: Likewise. * disk/lvm.c: Likewise. * disk/mdraid_linux.c: Likewise. * disk/raid.c: Likewise. * disk/raid6_recover.c: Likewise. * disk/scsi.c: Likewise. * efiemu/main.c: Likewise. * efiemu/mm.c: Likewise. * efiemu/pnvram.c: Likewise. * efiemu/symbols.c: Likewise. * font/font.c: Likewise. * fs/cpio.c: Likewise. * fs/hfsplus.c: Likewise. * fs/iso9660.c: Likewise. * fs/jfs.c: Likewise. * fs/minix.c: Likewise. * fs/ntfs.c: Likewise. * fs/ntfscomp.c: Likewise. * fs/reiserfs.c: Likewise. * fs/ufs.c: Likewise. * fs/xfs.c: Likewise. * gettext/gettext.c: Likewise. * include/grub/auth.h: Likewise. * kern/elf.c: Likewise. * kern/file.c: Likewise. * kern/ieee1275/init.c: Likewise. * kern/ieee1275/mmap.c: Likewise. * kern/ieee1275/openfw.c: Likewise. * kern/powerpc/dl.c: Likewise. * kern/sparc64/dl.c: Likewise. * lib/arg.c: Likewise. * loader/i386/bsd.c: Likewise. * loader/i386/bsdXX.c: Likewise. * loader/i386/efi/linux.c: Likewise. * loader/i386/efi/xnu.c: Likewise. * loader/i386/ieee1275/linux.c: Likewise. * loader/i386/linux.c: Likewise. * loader/i386/multiboot.c: Likewise. * loader/i386/pc/linux.c: Likewise. * loader/i386/pc/multiboot2.c: Likewise. * loader/i386/xnu.c: Likewise. * loader/ieee1275/multiboot2.c: Likewise. * loader/macho.c: Likewise. * loader/machoXX.c: Likewise. * loader/multiboot2.c: Likewise. * loader/multiboot_loader.c: Likewise. * loader/powerpc/ieee1275/linux.c: Likewise. * loader/sparc64/ieee1275/linux.c: Likewise. * loader/xnu.c: Likewise. * loader/xnu_resume.c: Likewise. * mmap/i386/pc/mmap.c: Likewise. * normal/menu_viewer.c: Likewise. * partmap/acorn.c: Likewise. * partmap/amiga.c: Likewise. * partmap/apple.c: Likewise. * script/lexer.c: Likewise. * term/gfxterm.c: Likewise. * term/i386/pc/serial.c: Likewise. * term/i386/pc/vga.c: Likewise. * term/ieee1275/ofconsole.c: Likewise. * term/terminfo.c: Likewise. * video/bitmap.c: Likewise. * video/efi_gop.c: Likewise. * video/efi_uga.c: Likewise. * video/fb/video_fb.c: Likewise. * video/i386/pc/vbe.c: Likewise. * video/readers/tga.c: Likewise. * video/video.c: Likewise.
161 lines
4 KiB
C
161 lines
4 KiB
C
/* macho.c - load Mach-O files. */
|
|
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 2009 Free Software Foundation, Inc.
|
|
*
|
|
* GRUB is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GRUB is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/* This Mach-O loader is incomplete and can load only non-relocatable segments.
|
|
This is however enough to boot xnu (otool -l and Mach-O specs for more info).
|
|
*/
|
|
|
|
#include <grub/err.h>
|
|
#include <grub/macho.h>
|
|
#include <grub/cpu/macho.h>
|
|
#include <grub/machoload.h>
|
|
#include <grub/file.h>
|
|
#include <grub/gzio.h>
|
|
#include <grub/misc.h>
|
|
#include <grub/mm.h>
|
|
|
|
grub_err_t
|
|
grub_macho_close (grub_macho_t macho)
|
|
{
|
|
grub_file_t file = macho->file;
|
|
|
|
grub_free (macho->cmds32);
|
|
grub_free (macho->cmds64);
|
|
|
|
grub_free (macho);
|
|
|
|
if (file)
|
|
grub_file_close (file);
|
|
|
|
return grub_errno;
|
|
}
|
|
|
|
grub_macho_t
|
|
grub_macho_file (grub_file_t file)
|
|
{
|
|
grub_macho_t macho;
|
|
union grub_macho_filestart filestart;
|
|
|
|
macho = grub_malloc (sizeof (*macho));
|
|
if (! macho)
|
|
return 0;
|
|
|
|
macho->file = file;
|
|
macho->offset32 = -1;
|
|
macho->offset64 = -1;
|
|
macho->end32 = -1;
|
|
macho->end64 = -1;
|
|
macho->cmds32 = 0;
|
|
macho->cmds64 = 0;
|
|
|
|
if (grub_file_seek (macho->file, 0) == (grub_off_t) -1)
|
|
goto fail;
|
|
|
|
if (grub_file_read (macho->file, &filestart, sizeof (filestart))
|
|
!= sizeof (filestart))
|
|
{
|
|
grub_error_push ();
|
|
grub_error (GRUB_ERR_READ_ERROR, "cannot read Mach-O header");
|
|
goto fail;
|
|
}
|
|
|
|
/* Is it a fat file? */
|
|
if (filestart.fat.magic == grub_be_to_cpu32 (GRUB_MACHO_FAT_MAGIC))
|
|
{
|
|
struct grub_macho_fat_arch *archs;
|
|
int i, narchs;
|
|
|
|
/* Load architecture description. */
|
|
narchs = grub_be_to_cpu32 (filestart.fat.nfat_arch);
|
|
if (grub_file_seek (macho->file, sizeof (struct grub_macho_fat_header))
|
|
== (grub_off_t) -1)
|
|
goto fail;
|
|
archs = grub_malloc (sizeof (struct grub_macho_fat_arch) * narchs);
|
|
if (!archs)
|
|
goto fail;
|
|
if (grub_file_read (macho->file, archs,
|
|
sizeof (struct grub_macho_fat_arch) * narchs)
|
|
!= (grub_ssize_t)sizeof(struct grub_macho_fat_arch) * narchs)
|
|
{
|
|
grub_free (archs);
|
|
grub_error_push ();
|
|
grub_error (GRUB_ERR_READ_ERROR, "cannot read Mach-O header");
|
|
goto fail;
|
|
}
|
|
|
|
for (i = 0; i < narchs; i++)
|
|
{
|
|
if (GRUB_MACHO_CPUTYPE_IS_HOST32
|
|
(grub_be_to_cpu32 (archs[i].cputype)))
|
|
{
|
|
macho->offset32 = grub_be_to_cpu32 (archs[i].offset);
|
|
macho->end32 = grub_be_to_cpu32 (archs[i].offset)
|
|
+ grub_be_to_cpu32 (archs[i].size);
|
|
}
|
|
if (GRUB_MACHO_CPUTYPE_IS_HOST64
|
|
(grub_be_to_cpu32 (archs[i].cputype)))
|
|
{
|
|
macho->offset64 = grub_be_to_cpu32 (archs[i].offset);
|
|
macho->end64 = grub_be_to_cpu32 (archs[i].offset)
|
|
+ grub_be_to_cpu32 (archs[i].size);
|
|
}
|
|
}
|
|
grub_free (archs);
|
|
}
|
|
|
|
/* Is it a thin 32-bit file? */
|
|
if (filestart.thin32.magic == GRUB_MACHO_MAGIC32)
|
|
{
|
|
macho->offset32 = 0;
|
|
macho->end32 = grub_file_size (file);
|
|
}
|
|
|
|
/* Is it a thin 64-bit file? */
|
|
if (filestart.thin64.magic == GRUB_MACHO_MAGIC64)
|
|
{
|
|
macho->offset64 = 0;
|
|
macho->end64 = grub_file_size (file);
|
|
}
|
|
|
|
grub_macho_parse32 (macho);
|
|
grub_macho_parse64 (macho);
|
|
|
|
return macho;
|
|
|
|
fail:
|
|
grub_macho_close (macho);
|
|
return 0;
|
|
}
|
|
|
|
grub_macho_t
|
|
grub_macho_open (const char *name)
|
|
{
|
|
grub_file_t file;
|
|
grub_macho_t macho;
|
|
|
|
file = grub_gzfile_open (name, 1);
|
|
if (! file)
|
|
return 0;
|
|
|
|
macho = grub_macho_file (file);
|
|
if (! macho)
|
|
grub_file_close (file);
|
|
|
|
return macho;
|
|
}
|