/* Load .kext. */
static grub_err_t
grub_xnu_load_driver (char *infoplistname, grub_file_t binaryfile)
{
grub_macho_t macho;
grub_err_t err;
grub_file_t infoplist;
struct grub_xnu_extheader *exthead;
int neededspace = sizeof (*exthead);
grub_uint8_t *buf;
grub_size_t infoplistsize = 0, machosize = 0;
char *name, *nameend;
int namelen;
name = get_name_ptr (infoplistname);
nameend = grub_strchr (name, '/');
if (nameend)
namelen = nameend - name;
else
namelen = grub_strlen (name);
neededspace += namelen + 1;
if (! grub_xnu_heap_size)
return grub_error (GRUB_ERR_BAD_OS, "no xnu kernel loaded");
/* Compute the needed space. */
if (binaryfile)
{
macho = grub_macho_file (binaryfile);
if (! macho || ! grub_macho_contains_macho32 (macho))
{
if (macho)
grub_macho_close (macho);
return grub_error (GRUB_ERR_BAD_OS,
"extension doesn't contain suitable architecture");
}
if (grub_xnu_is_64bit)
machosize = grub_macho_filesize64 (macho);
else
machosize = grub_macho_filesize32 (macho);
neededspace += machosize;
}
else
macho = 0;
if (infoplistname)
infoplist = grub_gzfile_open (infoplistname, 1);
else
infoplist = 0;
grub_errno = GRUB_ERR_NONE;
if (infoplist)
{
infoplistsize = grub_file_size (infoplist);
neededspace += infoplistsize + 1;
}
else
infoplistsize = 0;
/* Allocate the space. */
err = grub_xnu_align_heap (GRUB_XNU_PAGESIZE);
if (err)
return err;
buf = grub_xnu_heap_malloc (neededspace);
exthead = (struct grub_xnu_extheader *) buf;
grub_memset (exthead, 0, sizeof (*exthead));
buf += sizeof (*exthead);
/* Load the binary. */
if (macho)
{
exthead->binaryaddr = (buf - (grub_uint8_t *) grub_xnu_heap_start)
+ grub_xnu_heap_will_be_at;
exthead->binarysize = machosize;
if (grub_xnu_is_64bit)
err = grub_macho_readfile64 (macho, buf);
else
err = grub_macho_readfile32 (macho, buf);
if (err)
{
grub_macho_close (macho);
return err;
}
grub_macho_close (macho);
buf += machosize;
}
grub_errno = GRUB_ERR_NONE;
/* Load the plist. */
if (infoplist)
{
exthead->infoplistaddr = (buf - (grub_uint8_t *) grub_xnu_heap_start)
+ grub_xnu_heap_will_be_at;
exthead->infoplistsize = infoplistsize + 1;
if (grub_file_read (infoplist, buf, infoplistsize)
!= (grub_ssize_t) (infoplistsize))
{
grub_file_close (infoplist);
grub_error_push ();
return grub_error (GRUB_ERR_BAD_OS, "couldn't read file %s: ",
infoplistname);
}
grub_file_close (infoplist);
buf[infoplistsize] = 0;
buf += infoplistsize + 1;
}
grub_errno = GRUB_ERR_NONE;
exthead->nameaddr = (buf - (grub_uint8_t *) grub_xnu_heap_start)
+ grub_xnu_heap_will_be_at;
exthead->namesize = namelen + 1;
grub_memcpy (buf, name, namelen);
buf[namelen] = 0;
buf += namelen + 1;
/* Announce to kernel */
return grub_xnu_register_memory ("Driver-", &driversnum, exthead,
neededspace);
}
static grub_err_t
grub_cmd_file (grub_extcmd_context_t ctxt, int argc, char **args)
{
grub_file_t file = 0;
grub_elf_t elf = 0;
grub_err_t err;
int type = -1, i;
int ret = 0;
grub_macho_t macho = 0;
if (argc == 0)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
for (i = OPT_TYPE_MIN; i <= OPT_TYPE_MAX; i++)
if (ctxt->state[i].set)
{
if (type == -1)
{
type = i;
continue;
}
return grub_error (GRUB_ERR_BAD_ARGUMENT, "multiple types specified");
}
if (type == -1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no type specified");
file = grub_file_open (args[0]);
if (!file)
return grub_errno;
switch (type)
{
case IS_BIOS_BOOTSECTOR:
{
grub_uint16_t sig;
if (grub_file_size (file) != 512)
break;
if (grub_file_seek (file, 510) == (grub_size_t) -1)
break;
if (grub_file_read (file, &sig, 2) != 2)
break;
if (sig != grub_cpu_to_le16_compile_time (0xaa55))
break;
ret = 1;
break;
}
case IS_IA64_LINUX:
{
Elf64_Ehdr ehdr;
if (grub_file_read (file, &ehdr, sizeof (ehdr)) != sizeof (ehdr))
break;
if (ehdr.e_ident[EI_MAG0] != ELFMAG0
|| ehdr.e_ident[EI_MAG1] != ELFMAG1
|| ehdr.e_ident[EI_MAG2] != ELFMAG2
|| ehdr.e_ident[EI_MAG3] != ELFMAG3
|| ehdr.e_ident[EI_VERSION] != EV_CURRENT
|| ehdr.e_version != EV_CURRENT)
break;
if (ehdr.e_ident[EI_CLASS] != ELFCLASS64
|| ehdr.e_ident[EI_DATA] != ELFDATA2LSB
|| ehdr.e_machine != grub_cpu_to_le16_compile_time (EM_IA_64))
break;
ret = 1;
break;
}
case IS_SPARC64_LINUX:
{
Elf64_Ehdr ehdr;
if (grub_file_read (file, &ehdr, sizeof (ehdr)) != sizeof (ehdr))
break;
if (ehdr.e_ident[EI_MAG0] != ELFMAG0
|| ehdr.e_ident[EI_MAG1] != ELFMAG1
|| ehdr.e_ident[EI_MAG2] != ELFMAG2
|| ehdr.e_ident[EI_MAG3] != ELFMAG3
|| ehdr.e_ident[EI_VERSION] != EV_CURRENT
|| ehdr.e_version != EV_CURRENT)
break;
if (ehdr.e_ident[EI_CLASS] != ELFCLASS64
|| ehdr.e_ident[EI_DATA] != ELFDATA2MSB)
break;
if (ehdr.e_machine != grub_cpu_to_le16_compile_time (EM_SPARCV9)
|| ehdr.e_type != grub_cpu_to_be16_compile_time (ET_EXEC))
break;
ret = 1;
break;
}
case IS_POWERPC_LINUX:
{
Elf32_Ehdr ehdr;
if (grub_file_read (file, &ehdr, sizeof (ehdr)) != sizeof (ehdr))
break;
if (ehdr.e_ident[EI_MAG0] != ELFMAG0
|| ehdr.e_ident[EI_MAG1] != ELFMAG1
|| ehdr.e_ident[EI_MAG2] != ELFMAG2
|| ehdr.e_ident[EI_MAG3] != ELFMAG3
|| ehdr.e_ident[EI_VERSION] != EV_CURRENT
|| ehdr.e_version != EV_CURRENT)
break;
if (ehdr.e_ident[EI_DATA] != ELFDATA2MSB
|| (ehdr.e_machine != grub_cpu_to_le16_compile_time (EM_PPC)
&& ehdr.e_machine !=
grub_cpu_to_le16_compile_time (EM_PPC64)))
break;
if (ehdr.e_type != grub_cpu_to_be16_compile_time (ET_EXEC)
&& ehdr.e_type != grub_cpu_to_be16_compile_time (ET_DYN))
break;
ret = 1;
break;
}
case IS_MIPS_LINUX:
{
Elf32_Ehdr ehdr;
if (grub_file_read (file, &ehdr, sizeof (ehdr)) != sizeof (ehdr))
break;
if (ehdr.e_ident[EI_MAG0] != ELFMAG0
|| ehdr.e_ident[EI_MAG1] != ELFMAG1
|| ehdr.e_ident[EI_MAG2] != ELFMAG2
|| ehdr.e_ident[EI_MAG3] != ELFMAG3
|| ehdr.e_ident[EI_VERSION] != EV_CURRENT
|| ehdr.e_version != EV_CURRENT)
break;
if (ehdr.e_ident[EI_DATA] != ELFDATA2MSB
|| ehdr.e_machine != grub_cpu_to_be16_compile_time (EM_MIPS)
|| ehdr.e_type != grub_cpu_to_be16_compile_time (ET_EXEC))
break;
ret = 1;
break;
}
case IS_X86_KNETBSD:
case IS_X86_KNETBSD32:
case IS_X86_KNETBSD64:
{
int is32, is64;
elf = grub_elf_file (file, file->name);
if (elf->ehdr.ehdr32.e_type != grub_cpu_to_le16_compile_time (ET_EXEC)
|| elf->ehdr.ehdr32.e_ident[EI_DATA] != ELFDATA2LSB)
break;
is32 = grub_elf_is_elf32 (elf);
is64 = grub_elf_is_elf64 (elf);
if (!is32 && !is64)
break;
if (!is32 && type == IS_X86_KNETBSD32)
break;
if (!is64 && type == IS_X86_KNETBSD64)
break;
if (is64)
ret = grub_file_check_netbsd64 (elf);
if (is32)
ret = grub_file_check_netbsd32 (elf);
break;
}
case IS_X86_KFREEBSD:
case IS_X86_KFREEBSD32:
case IS_X86_KFREEBSD64:
{
Elf32_Ehdr ehdr;
int is32, is64;
if (grub_file_read (file, &ehdr, sizeof (ehdr)) != sizeof (ehdr))
break;
if (ehdr.e_ident[EI_MAG0] != ELFMAG0
|| ehdr.e_ident[EI_MAG1] != ELFMAG1
|| ehdr.e_ident[EI_MAG2] != ELFMAG2
|| ehdr.e_ident[EI_MAG3] != ELFMAG3
|| ehdr.e_ident[EI_VERSION] != EV_CURRENT
|| ehdr.e_version != EV_CURRENT)
break;
if (ehdr.e_type != grub_cpu_to_le16_compile_time (ET_EXEC)
|| ehdr.e_ident[EI_DATA] != ELFDATA2LSB)
break;
if (ehdr.e_ident[EI_OSABI] != ELFOSABI_FREEBSD)
break;
is32 = (ehdr.e_machine == grub_cpu_to_le16_compile_time (EM_386)
&& ehdr.e_ident[EI_CLASS] == ELFCLASS32);
is64 = (ehdr.e_machine == grub_cpu_to_le16_compile_time (EM_X86_64)
&& ehdr.e_ident[EI_CLASS] == ELFCLASS64);
if (!is32 && !is64)
break;
if (!is32 && (type == IS_X86_KFREEBSD32 || type == IS_X86_KNETBSD32))
break;
if (!is64 && (type == IS_X86_KFREEBSD64 || type == IS_X86_KNETBSD64))
break;
ret = 1;
break;
}
case IS_MIPSEL_LINUX:
{
Elf32_Ehdr ehdr;
if (grub_file_read (file, &ehdr, sizeof (ehdr)) != sizeof (ehdr))
break;
if (ehdr.e_ident[EI_MAG0] != ELFMAG0
|| ehdr.e_ident[EI_MAG1] != ELFMAG1
|| ehdr.e_ident[EI_MAG2] != ELFMAG2
|| ehdr.e_ident[EI_MAG3] != ELFMAG3
|| ehdr.e_ident[EI_VERSION] != EV_CURRENT
|| ehdr.e_version != EV_CURRENT)
break;
if (ehdr.e_machine != grub_cpu_to_le16_compile_time (EM_MIPS)
|| ehdr.e_type != grub_cpu_to_le16_compile_time (ET_EXEC))
break;
ret = 1;
break;
}
case IS_ARM_LINUX:
{
grub_uint32_t sig, sig_pi;
if (grub_file_read (file, &sig_pi, 4) != 4)
break;
/* Raspberry pi. */
if (sig_pi == grub_cpu_to_le32_compile_time (0xea000006))
{
ret = 1;
break;
}
if (grub_file_seek (file, 0x24) == (grub_size_t) -1)
break;
if (grub_file_read (file, &sig, 4) != 4)
break;
if (sig == grub_cpu_to_le32_compile_time (0x016f2818))
{
ret = 1;
break;
}
break;
}
case IS_ARM64_LINUX:
{
grub_uint32_t sig;
if (grub_file_seek (file, 0x38) == (grub_size_t) -1)
break;
if (grub_file_read (file, &sig, 4) != 4)
break;
if (sig == grub_cpu_to_le32_compile_time (0x644d5241))
{
ret = 1;
break;
}
break;
}
case IS_PAE_DOMU ... IS_DOM0:
{
struct grub_xen_file_info xen_inf;
elf = grub_xen_file (file);
if (!elf)
break;
err = grub_xen_get_info (elf, &xen_inf);
if (err)
break;
/* Unfortuntely no way to check if kernel supports dom0. */
if (type == IS_DOM0)
ret = 1;
if (type == IS_PAE_DOMU)
ret = (xen_inf.arch == GRUB_XEN_FILE_I386_PAE
|| xen_inf.arch == GRUB_XEN_FILE_I386_PAE_BIMODE);
if (type == IS_64_DOMU)
ret = (xen_inf.arch == GRUB_XEN_FILE_X86_64);
break;
}
case IS_MULTIBOOT:
case IS_MULTIBOOT2:
{
grub_uint32_t *buffer;
grub_ssize_t len;
grub_size_t search_size;
grub_uint32_t *header;
grub_uint32_t magic;
grub_size_t step;
if (type == IS_MULTIBOOT2)
{
search_size = 32768;
magic = grub_cpu_to_le32_compile_time (0xe85250d6);
step = 2;
}
else
{
search_size = 8192;
magic = grub_cpu_to_le32_compile_time (0x1BADB002);
step = 1;
}
buffer = grub_malloc (search_size);
if (!buffer)
break;
len = grub_file_read (file, buffer, search_size);
if (len < 32)
{
grub_free (buffer);
break;
}
/* Look for the multiboot header in the buffer. The header should
be at least 12 bytes and aligned on a 4-byte boundary. */
for (header = buffer;
((char *) header <=
(char *) buffer + len - (type == IS_MULTIBOOT2 ? 16 : 12))
|| (header = 0); header += step)
{
if (header[0] == magic
&& !(grub_le_to_cpu32 (header[0])
+ grub_le_to_cpu32 (header[1])
+ grub_le_to_cpu32 (header[2])
+ (type == IS_MULTIBOOT2
? grub_le_to_cpu32 (header[3]) : 0)))
break;
}
if (header != 0)
ret = 1;
grub_free (buffer);
break;
}
case IS_X86_LINUX32:
case IS_X86_LINUX:
{
struct linux_kernel_header lh;
if (grub_file_read (file, &lh, sizeof (lh)) != sizeof (lh))
break;
if (lh.boot_flag != grub_cpu_to_le16_compile_time (0xaa55))
break;
if (lh.setup_sects > GRUB_LINUX_MAX_SETUP_SECTS)
break;
/* FIXME: some really old kernels (< 1.3.73) will fail this. */
if (lh.header !=
grub_cpu_to_le32_compile_time (GRUB_LINUX_MAGIC_SIGNATURE)
|| grub_le_to_cpu16 (lh.version) < 0x0200)
break;
if (type == IS_X86_LINUX)
{
ret = 1;
break;
}
/* FIXME: 2.03 is not always good enough (Linux 2.4 can be 2.03 and
still not support 32-bit boot. */
if (lh.header !=
grub_cpu_to_le32_compile_time (GRUB_LINUX_MAGIC_SIGNATURE)
|| grub_le_to_cpu16 (lh.version) < 0x0203)
break;
if (!(lh.loadflags & GRUB_LINUX_FLAG_BIG_KERNEL))
break;
ret = 1;
break;
}
case IS_HIBERNATED:
{
grub_uint8_t hibr_file_magic[4];
if (grub_file_read (file, &hibr_file_magic, sizeof (hibr_file_magic))
!= sizeof (hibr_file_magic))
break;
if (grub_memcmp ("hibr", hibr_file_magic, sizeof (hibr_file_magic)) ==
0
|| grub_memcmp ("HIBR", hibr_file_magic,
sizeof (hibr_file_magic)) == 0)
ret = 1;
break;
}
case IS_XNU64:
case IS_XNU32:
{
macho = grub_macho_open (args[0], (type == IS_XNU64));
if (!macho)
break;
/* FIXME: more checks? */
ret = 1;
break;
}
case IS_XNU_HIBR:
{
struct grub_xnu_hibernate_header hibhead;
if (grub_file_read (file, &hibhead, sizeof (hibhead))
!= sizeof (hibhead))
break;
if (hibhead.magic !=
grub_cpu_to_le32_compile_time (GRUB_XNU_HIBERNATE_MAGIC))
break;
ret = 1;
break;
}
case IS_32_EFI:
case IS_64_EFI:
case IS_IA_EFI:
case IS_ARM64_EFI:
case IS_ARM_EFI:
{
char signature[4];
grub_uint32_t pe_offset;
struct grub_pe32_coff_header coff_head;
if (grub_file_read (file, signature, 2) != 2)
break;
if (signature[0] != 'M' || signature[1] != 'Z')
break;
if ((grub_ssize_t) grub_file_seek (file, 0x3c) == -1)
break;
if (grub_file_read (file, &pe_offset, 4) != 4)
break;
if ((grub_ssize_t) grub_file_seek (file, grub_le_to_cpu32 (pe_offset))
== -1)
break;
if (grub_file_read (file, signature, 4) != 4)
break;
if (signature[0] != 'P' || signature[1] != 'E'
|| signature[2] != '\0' || signature[3] != '\0')
break;
if (grub_file_read (file, &coff_head, sizeof (coff_head))
!= sizeof (coff_head))
break;
if (type == IS_32_EFI
&& coff_head.machine !=
grub_cpu_to_le16_compile_time (GRUB_PE32_MACHINE_I386))
break;
if (type == IS_64_EFI
&& coff_head.machine !=
grub_cpu_to_le16_compile_time (GRUB_PE32_MACHINE_X86_64))
break;
if (type == IS_IA_EFI
&& coff_head.machine !=
grub_cpu_to_le16_compile_time (GRUB_PE32_MACHINE_IA64))
break;
if (type == IS_ARM64_EFI
&& coff_head.machine !=
grub_cpu_to_le16_compile_time (GRUB_PE32_MACHINE_ARM64))
break;
if (type == IS_ARM_EFI
&& coff_head.machine !=
grub_cpu_to_le16_compile_time (GRUB_PE32_MACHINE_ARMTHUMB_MIXED))
break;
if (type == IS_IA_EFI || type == IS_64_EFI || type == IS_ARM64_EFI)
{
struct grub_pe64_optional_header o64;
if (grub_file_read (file, &o64, sizeof (o64)) != sizeof (o64))
break;
if (o64.magic !=
grub_cpu_to_le16_compile_time (GRUB_PE32_PE64_MAGIC))
break;
if (o64.subsystem !=
grub_cpu_to_le16_compile_time
(GRUB_PE32_SUBSYSTEM_EFI_APPLICATION))
break;
ret = 1;
break;
}
if (type == IS_32_EFI || type == IS_ARM_EFI)
{
struct grub_pe32_optional_header o32;
if (grub_file_read (file, &o32, sizeof (o32)) != sizeof (o32))
break;
if (o32.magic !=
grub_cpu_to_le16_compile_time (GRUB_PE32_PE32_MAGIC))
break;
if (o32.subsystem !=
grub_cpu_to_le16_compile_time
(GRUB_PE32_SUBSYSTEM_EFI_APPLICATION))
break;
ret = 1;
break;
}
break;
}
}
if (elf)
grub_elf_close (elf);
else if (macho)
grub_macho_close (macho);
else if (file)
grub_file_close (file);
if (!ret && (grub_errno == GRUB_ERR_BAD_OS || grub_errno == GRUB_ERR_NONE))
/* TRANSLATORS: it's a standalone boolean value,
opposite of "true". */
grub_error (GRUB_ERR_TEST_FAILURE, N_("false"));
return grub_errno;
}
static grub_err_t
grub_cmd_xnu_kernel64 (grub_command_t cmd __attribute__ ((unused)),
int argc, char *args[])
{
grub_err_t err;
grub_macho_t macho;
grub_uint64_t startcode, endcode;
int i;
char *ptr, *loadaddr;
if (argc < 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "file name required");
grub_xnu_unload ();
macho = grub_macho_open (args[0]);
if (! macho)
return grub_errno;
if (! grub_macho_contains_macho64 (macho))
{
grub_macho_close (macho);
return grub_error (GRUB_ERR_BAD_OS,
"kernel doesn't contain suitable 64-bit architecture");
}
err = grub_macho_size64 (macho, &startcode, &endcode, GRUB_MACHO_NOBSS);
if (err)
{
grub_macho_close (macho);
grub_xnu_unload ();
return err;
}
startcode &= 0x0fffffff;
endcode &= 0x0fffffff;
grub_dprintf ("xnu", "endcode = %lx, startcode = %lx\n",
(unsigned long) endcode, (unsigned long) startcode);
loadaddr = grub_xnu_heap_malloc (endcode - startcode);
grub_xnu_heap_will_be_at = startcode;
if (! loadaddr)
{
grub_macho_close (macho);
grub_xnu_unload ();
return grub_error (GRUB_ERR_OUT_OF_MEMORY,
"not enough memory to load kernel");
}
/* Load kernel. */
err = grub_macho_load64 (macho, loadaddr - startcode, GRUB_MACHO_NOBSS);
if (err)
{
grub_macho_close (macho);
grub_xnu_unload ();
return err;
}
grub_xnu_entry_point = grub_macho_get_entry_point64 (macho) & 0x0fffffff;
if (! grub_xnu_entry_point)
{
grub_macho_close (macho);
grub_xnu_unload ();
return grub_error (GRUB_ERR_BAD_OS, "couldn't find entry point");
}
grub_macho_close (macho);
err = grub_xnu_align_heap (GRUB_XNU_PAGESIZE);
if (err)
{
grub_xnu_unload ();
return err;
}
/* Copy parameters to kernel command line. */
ptr = grub_xnu_cmdline;
for (i = 1; i < argc; i++)
{
if (ptr + grub_strlen (args[i]) + 1
>= grub_xnu_cmdline + sizeof (grub_xnu_cmdline))
break;
grub_memcpy (ptr, args[i], grub_strlen (args[i]));
ptr += grub_strlen (args[i]);
*ptr = ' ';
ptr++;
}
/* Replace last space by '\0'. */
if (ptr != grub_xnu_cmdline)
*(ptr - 1) = 0;
grub_loader_set (grub_xnu_boot, grub_xnu_unload, 0);
grub_xnu_lock ();
grub_xnu_is_64bit = 1;
return 0;
}
grub_macho_t
grub_macho_file (grub_file_t file, const char *filename, int is_64bit)
{
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;
macho->uncompressed32 = 0;
macho->uncompressed64 = 0;
macho->compressed32 = 0;
macho->compressed64 = 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))
{
if (!grub_errno)
grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
filename);
goto fail;
}
/* Is it a fat file? */
if (filestart.fat.magic == grub_cpu_to_be32_compile_time (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);
if (!grub_errno)
grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
filename);
goto fail;
}
for (i = 0; i < narchs; i++)
{
if ((archs[i].cputype
== grub_cpu_to_be32_compile_time (GRUB_MACHO_CPUTYPE_IA32))
&& !is_64bit)
{
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 ((archs[i].cputype
== grub_cpu_to_be32_compile_time (GRUB_MACHO_CPUTYPE_AMD64))
&& is_64bit)
{
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 && !is_64bit)
{
macho->offset32 = 0;
macho->end32 = grub_file_size (file);
}
/* Is it a thin 64-bit file? */
if (filestart.thin64.magic == GRUB_MACHO_MAGIC64 && is_64bit)
{
macho->offset64 = 0;
macho->end64 = grub_file_size (file);
}
if (grub_memcmp (filestart.lzss.magic, GRUB_MACHO_LZSS_MAGIC,
sizeof (filestart.lzss.magic)) == 0 && !is_64bit)
{
macho->offset32 = 0;
macho->end32 = grub_file_size (file);
}
/* Is it a thin 64-bit file? */
if (grub_memcmp (filestart.lzss.magic, GRUB_MACHO_LZSS_MAGIC,
sizeof (filestart.lzss.magic)) == 0 && is_64bit)
{
macho->offset64 = 0;
macho->end64 = grub_file_size (file);
}
grub_macho_parse32 (macho, filename);
grub_macho_parse64 (macho, filename);
if (macho->offset32 == -1 && !is_64bit)
{
grub_error (GRUB_ERR_BAD_OS,
"Mach-O doesn't contain suitable 32-bit architecture");
goto fail;
}
if (macho->offset64 == -1 && is_64bit)
{
grub_error (GRUB_ERR_BAD_OS,
"Mach-O doesn't contain suitable 64-bit architecture");
goto fail;
}
return macho;
fail:
macho->file = 0;
grub_macho_close (macho);
return 0;
}