* loader/i386/pc/multiboot.c (grub_multiboot_is_elf32): New
function.
(grub_multiboot_load_elf32): Likewise.
(grub_multiboot_is_elf64): Likewise.
(grub_multiboot_load_elf64): Likewise.
(grub_multiboot_load_elf): Likewise.
(grub_rescue_cmd_multiboot): Call grub_multiboot_load_elf to load
an ELF32 or ELF64 file.
This is based on a patch from Ruslan Nikolaev <nruslan@mail.com>.
From Serbinenko Vladimir <serbinenko.vova@list.ru>:
* kern/disk.c (grub_print_partinfo): Check if FS->LABEL is not
NULL before calling FS->LABEL.
* fs/fat.c (grub_fat_dir): Initialize DIRNAME to NULL.
* commands/ls.c (grub_ls_list_files): Show labels, if possible.
(grub_ls_list_disks): Check if FS and FS->LABEL are not NULL
before calling FS->LABEL.
Change the semantics of variable hooks. They now return strings
instead of error values.
* util/i386/pc/grub-setup.c: Include grub/env.h.
(setup): Use grub_device_set_root instead of grub_env_set.
* kern/rescue.c (grub_rescue_cmd_root): Use grub_env_set and
grub_env_get instead of grub_device_set_root and
grub_device_get_root, respectively.
* kern/main.c (grub_env_write_root): New function.
(grub_set_root_dev): Register grub_env_write_hook for "root". Use
grub_env_set instead of grub_device_set_root.
* kern/env.c (HASHSZ): Reduced to 13, because GRUB does not need
many variables.
(grub_env_set): Set ENV->VALUE to the result of ENV->WRITE_HOOK
rather than calling ENV->WRITE_HOOK afterwards.
(grub_env_get): Return the result of ENV->READ_HOOK rather than
passing a pointer of a pointer.
(grub_register_variable_hook): Change the types of "read_hook" and
"write_hook" to grub_env_read_hook_t and grub_env_write_hook_t,
respectively.
Allocate the default empty string on the heap, because this string
may be freed later.
* kern/device.c: Include grub/env.h.
(grub_device_set_root): Removed.
(grub_device_get_root): Likewise.
(grub_device_open): Use grub_env_get instead of
grub_device_get_root.
* include/grub/env.h (grub_env_read_hook_t): New type.
(grub_env_write_hook_t): Likewise.
(grub_env_var): Change the types of "read_hook" and "write_hook"
to grub_env_read_hook_t and grub_env_write_hook_t, respectively.
(grub_register_variable_hook): Likewise.
* include/grub/device.h (grub_device_set_root): Removed.
(grub_device_set_root): Likewise.
* fs/fat.c (grub_fat_dir): Make a copy of PATH in DIRNAME, and
make sure that DIRNAME terminates with '/', so that
grub_fat_find_dir will fail if PATH is not a directory.
* commands/ls.c (grub_ls_list_files): Remove the qualifier const
from DIRNAME.
Use the qualifier auto for print_files and print_files_long.
If FS->DIR sets GRUB_ERRNO to GRUB_ERR_BAD_FILE_TYPE, try DIRNAME
as a regular file.
Put a newline only if there is no error.
(grub_cmd_ls): Remove grub_ls_print_files, because this is not
used.
* kern/i386/pc/startup.S (gate_a20_try_system_control_port_a):
When turning off Gate A20, skip the check and return immediately,
because this is not fatal usually.
* conf/i386-pc.rmk (pxeboot_img_LDFLAGS): The text address should
be 0x7C00 instead of 0x8000.
* boot/i386/pc/pxeboot.S: Rewritten.
* kern/i386/pc/startup.S (gate_a20_try_bios): No need to specify
EXT_C.
(gate_a20_check_state): Read a byte from 0x108000. Invert the
result.
* kern/i386/pc/startup.S (grub_gate_a20): Rewritten for
robustness. This routine now supports a BIOS call and System
Control Port A to modify the gate A20.
* include/grub/i386/pc/kernel.h (GRUB_KERNEL_MACHINE_RAW_SIZE):
Increased to 0x440.
* disk/powerpc/ieee1275/ofdisk.c (grub_ofdisk_open): dprintf the
device path and resulting ihandle.
(grub_ofdisk_close): dprintf the ihandle being closed.
(grub_ofdisk_read): dprintf function parameters.
* kern/mm.c (grub_mm_init_region): Likewise.
* loader/powerpc/ieee1275/linux.c: Remove extra whitespace.
(grub_linux_boot): dprintf the Linux entry point, initrd address and
size, and boot arguments.
(grub_rescue_cmd_linux): dprintf each ELF segment's address and size
before loading into memory.
(grub_rescue_cmd_initrd): dprintf the initrd's address and size
before loading into memory.
* DISTLIST: Added genfslist.sh.
* normal/main.c (fs_module_list): New variable.
(autoload_fs_module): New function.
(read_fs_list): Likewise.
(grub_normal_execute): Call read_fs_list.
* kern/fs.c (grub_fs_autoload_hook): New variable.
(grub_fs_probe): Added support for auto-loading.
* include/grub/normal.h (struct grub_fs_module_list): New struct.
(grub_fs_module_list_t): New type.
* include/grub/fs.h (grub_fs_autoload_hook_t): New type.
(grub_fs_autoload_hook): New prototype.
* genfslist.sh: New file.
* genmk.rb: Added a rule to generate a filesystem list.
* kern/mm.c (grub_free): If the next free block which is being
merged is the first free block, set the first block to the block
being freed.
Reported by Vincent Guffens <guffens@inma.ucl.ac.be>.
* boot/powerpc/ieee1275/cmain.c (module_info): Remove definition.
(grub_ieee1275_chosen): New variable.
(cmain): Initialize and use `grub_ieee1275_chosen' instead of
`chosen'.
* boot/powerpc/ieee1275/crt0.S (init_stack): Remove stack space.
* boot/powerpc/ieee1275/ieee1275.c (grub_ieee1275_get_property):
Rename first argument to `phandle' for consistency.
(grub_ieee1275_get_property_length): Likewise.
(grub_ieee1275_next_property): Likewise. Change type of first argument
to grub_ieee1275_phandle_t.
* include/grub/powerpc/ieee1275/ieee1275.h (grub_ieee1275_entry_fn):
Move export next to declaration.
(grub_ieee1275_chosen): New variable.
* include/grub/powerpc/ieee1275/kernel.h (GRUB_IEEE1275_MODULE_BASE):
Correct cosmetic typo.
* kern/powerpc/ieee1275/init.c (grub_set_prefix): Use
`grub_ieee1275_chosen'.
* kern/powerpc/ieee1275/openfw.c (grub_map): Likewise.
* loader/powerpc/ieee1275/linux.c (grub_linux_boot): Likewise.
(grub_rescue_cmd_linux): Set `initrd_addr' to 0.
* term/powerpc/ieee1275/ofconsole.c (grub_ofconsole_refresh): Use
`grub_ieee1275_chosen'.
* commands/default.h: New file.
* commands/timeout.h: Likewise.
* normal/context.c: Likewise.
* util/misc.c: Do not include sys/times.h.
Include sys/time.h and grub/machine/time.h.
(grub_get_rtc): Rewritten with gettimeofday.
* util/grub-emu.c (main): Call grub_default_init and
grub_timeout_init before grub_normal_init, and call
grub_timeout_fini and grub_default_fini after grub_main.
* util/console.c (grub_ncurses_checkkey): Return the read
character or -1.
* normal/menu.c (run_menu): Set MENU->TIMEOUT to -1 once it
timeouts.
* normal/main.c (read_config_file): Push MENU. If this fails,
print an error and wait for a user input.
Print an error only if GRUB_ERRNO is not GRUB_ERR_NONE.
If a menu is empty or an error occurs, pop MENU.
(grub_normal_execute): Pop and free MENU after grub_menu_run
returns.
* kern/loader.c (grub_loader_boot): Call grub_machine_fini.
* include/grub/powerpc/ieee1275/time.h [GRUB_UTIL]: Do not
include time.h.
[GRUB_UTIL] (GRUB_TICKS_PER_SECOND): Use the same definition as
without GRUB_UTIL.
* include/grub/i386/pc/time.h [GRUB_UTIL]: Do not include
time.h.
[GRUB_UTIL] (GRUB_TICKS_PER_SECOND): Use the same definition as
without GRUB_UTIL.
* include/grub/normal.h (struct grub_menu_list): New struct.
(grub_menu_list_t): New type.
(struct grub_context): New struct.
(grub_context_t): New type.
(grub_register_command): Got rid of EXPORT_FUNC.
(grub_unregister_command): Likewise.
(grub_context_get): New prototype.
(grub_context_get_current_menu): Likewise.
(grub_context_push_menu): Likewise.
(grub_context_pop_menu): Likewise.
[GRUB_UTIL] (grub_default_init): Likewise.
[GRUB_UTIL] (grub_default_fini): Likewise.
[GRUB_UTIL] (grub_timeout_init): Likewise.
[GRUB_UTIL] (grub_timeout_fini): Likewise.
* conf/i386-pc.rmk (grub_emu_SOURCES): Added commands/default.c,
commands/timeout.c and normal/context.c.
(pkgdata_MODULES): Added default.mod and timeout.mod.
(normal_mod_SOURCES): Added normal/context.c.
(default_mod_SOURCES): New variable.
(default_mod_CFLAGS): Likewise.
(timeout_mod_SOURCES): Likewise.
(timeout_mod_CFLAGS): Likewise.
* conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Copied from
conf/i386-pc.rmk.
(pkgdata_MODULES): Added default.mod and timeout.mod.
(normal_mod_SOURCES): Added normal/context.c.
(default_mod_SOURCES): New variable.
(default_mod_CFLAGS): Likewise.
(timeout_mod_SOURCES): Likewise.
(timeout_mod_CFLAGS): Likewise.
* Makefile.in (all-local): Added $(MKFILES).
* include/grub/normal.h (grub_halt_init): New prototype.
(grub_halt_fini): Likewise.
(grub_reboot_init): Likewise.
(grub_reboot_fini): Likewise.
* util/grub-emu.c: Include signal.h.
(main_env): New global variable.
(grub_machine_init): Ignore SIGINT. Otherwise grub-emu cannot
catch C-c.
(grub_machine_fini): New function.
(main): Call grub_halt_init and grub_reboot_init before
grub_main, and grub_reboot_fini and grub_halt_fini after it.
Call setjmp with MAIN_ENV to go back afterwards.
Call grub_machine_fini right before return.
* include/grub/util/misc.h: Include setjmp.h.
(main_env): New prototype.
* include/grub/kernel.h (grub_machine_fini): New prototype.
* include/grub/i386/pc/biosdisk.h (grub_biosdisk_fini): Likewise.
* include/grub/i386/pc/console.h (grub_console_fini): Likewise.
* disk/i386/pc/biosdisk.c (grub_biosdisk_fini): New function.
* kern/i386/pc/init.c (grub_machine_fini): Likewise.
* term/i386/pc/console.c (grub_console_fini): Likewise.
* util/i386/pc/misc.c: New file.
* conf/i386-pc.rmk (grub_emu_SOURCES): Added
util/i386/pc/misc.c, commands/i386/pc/halt.c and
commands/i386/pc/reboot.c.
* include/grub/dl.h (grub_dl_check_header): New prototype.
(grub_arch_dl_check_header): Change return type to grub_err_t,
remove size parameter and export function. Update all callers.
* kern/dl.c (grub_dl_check_header): New function.
(grub_dl_load_core): Use `grub_dl_check_header' instead of
`grub_arch_dl_check_header'. Check ELF type. Check if sections
are inside the core.
* kern/i386/dl.c (grub_arch_dl_check_header): Remove arch
independent ELF header checks.
* kern/powerpc/dl.c (grub_arch_dl_check_header): Likewise.
* loader/i386/pc/multiboot.c (grub_rescue_cmd_multiboot): Use
`grub_dl_check_header' instead of explicit checks. Check for the
ELF type.
* loader/powerpc/ieee1275/linux.c (grub_rescue_cmd_linux): Use
`grub_dl_check_header' instead of explicit checks. Remove arch
specific ELF header checks.
* kern/partition.c (grub_partition_probe): Clear `grub_errno' and
return 0 if `grub_errno' is GRUB_ERR_BAD_PART_TABLE.
(part_map_iterate): Clear `grub_errno' and return 0 if
`partmap->iterate' returns GRUB_ERR_BAD_PART_TABLE.
* partmap/amiga.c (amiga_partition_map_iterate): Return
GRUB_ERR_BAD_PART_TABLE if no partition map magic is found.
* partmap/apple.c (apple_partition_map_iterate): Likewise.
* include/grub/mm.h (grub_mm_init_region): Change the type of the
`unsigned' arguments to `grub_size_t'.
(grub_malloc): Likewise.
(grub_realloc): Likewise.
(grub_memalign): Likewise.
* kern/i386/dl.c (grub_arch_dl_check_header): Likewise.
* kern/powerpc/dl.c (grub_arch_dl_check_header): Likewise.
* util/misc.c (grub_malloc): Likewise.
(grub_realloc): Likewise.
* kern/mm.c (get_header_from_pointer): Change the casts to
`unsigned' into a cast to `grub_size_t'.
* fs/fshelp.c (grub_fshelp_find_file): The `oldnode' should always
point to `currnode' when `currnode' is changed.
* util/grub-emu.c (main): Initialize `progname'. Reported by Nico
Schottelius <nico-linux@schottelius.org>.
* boot/powerpc/ieee1275/cmain.c (grub_ieee1275_realmode): New
variable.
(find_options): New function.
(cmain): Call find_options.
* include/grub/powerpc/ieee1275/ieee1275.h
(grub_ieee1275_realmode): New extern variable.
* kern/powerpc/ieee1275/openfw.c (grub_claimmap): Only call
grub_map if grub_ieee1275_realmode is false.
* genmk.rb: Handle the `Program' class in the main loop. Written
by Johan Rydberg <jrydberg@gnu.org>.
(Program): New class.
(programs): New variable.
* boot/powerpc/ieee1275/cmain.c: Include <grub/machine/ieee1275.h>
instead of "grub/machine/ieee1275.h". Include <grub/kernel.h>
instead of "grub/kernel.h". Include <grub/machine/init.h>.
(help_arch): Function removed.
* conf/powerpc-ieee1275.rmk (grubof_HEADERS): Add
`powerpc/libgcc.h' and `loader.h'.
(pkgdata_PROGRAMS): New variable.
(sbin_UTILITIES): Variable removed.
(grub_emu_SOURCES): Added kern/powerpc/cache.S.
(grubof_SOURCES): Variable re-defined so it only includes the
core functionality.
(grubof_CFLAGS): Remove `-DGRUBOF'.
(pkgdata_MODULES, fshelp_mod_SOURCES, fshelp_mod_CFLAGS,
(fat_mod_SOURCES, fat_mod_CFLAGS, ext2_mod_SOURCES)
(ext2_mod_CFLAGS, ufs_mod_SOURCES, ufs_mod_CFLAGS)
(minix_mod_SOURCES, minix_mod_CFLAGS, hfs_mod_SOURCES)
(hfs_mod_CFLAGS, jfs_mod_SOURCES, jfs_mod_CFLAGS)
(iso9660_mod_SOURCES, iso9660_mod_CFLAGS, _linux_mod_SOURCES)
(_linux_mod_CFLAGS, linux_mod_SOURCES, linux_mod_CFLAGS)
(normal_mod_SOURCES, normal_mod_CFLAGS, normal_mod_ASFLAGS)
(hello_mod_SOURCES, hello_mod_CFLAGS, boot_mod_SOURCES)
(boot_mod_CFLAGS, terminal_mod_SOURCES, terminal_mod_CFLAGS)
(ls_mod_SOURCES, ls_mod_CFLAGS, cmp_mod_SOURCES, cmp_mod_CFLAGS)
(cat_mod_SOURCES, cat_mod_CFLAGS, font_mod_SOURCES)
(font_mod_CFLAGS, amiga_mod_SOURCES, amiga_mod_CFLAGS)
(apple_mod_SOURCES, apple_mod_CFLAGS, pc_mod_SOURCES)
(pc_mod_CFLAGS): New variables.
* disk/powerpc/ieee1275/ofdisk.c: Include <grub/machine/init.h>.
(grub_ofdisk_iterate): Add a prototype for `dev_iterate'.
* include/grub/dl.h (grub_arch_dl_sync_caches): New prototype.
* include/grub/loader.h (grub_os_area_addr, grub_os_area_size):
Moved from here...
* include/grub/i386/pc/init.h (grub_os_area_addr)
(rub_os_area_size): ... to here.
* include/grub/powerpc/ieee1275/ieee1275.h
(grub_ieee1275_entry_fn): Export symbol.
* include/grub/powerpc/ieee1275/init.h: New file.
* include/grub/powerpc/libgcc.h: Likewise.
* include/grub/cache.h: Likewise.
* kern/powerpc/cache.S: Likewise. Written by Hollis Blanchard
<hollis@penguinppc.org>.
* kern/dl.c: Include <grub/cache.h>.
(grub_dl_flush_cache): New function.
(grub_dl_load_core): Call `grub_dl_flush_cache' to flush the cache
for this module.
* kern/powerpc/ieee1275/init.c (grub_ofdisk_init)
(grub_console_init): Removed prototypes.
(grub_machine_init): Don't initialize the modules anymore.
* kern/powerpc/ieee1275/openfw.c (grub_map): Make the function
static.
* include/grub/powerpc/types.h (GRUB_HOST_WORDS_LITTLEENDIAN):
Macro undef removed.
(GRUB_HOST_WORDS_BIGENDIAN): New macro.
* kern/powerpc/dl.c (grub_arch_dl_relocate_symbols): Add
relocation `R_PPC_REL32'. Return an error when the relocation is
unknown.
* Makefile.in (DATA): Add `$(pkgdata_PROGRAMS)'.
* kern/i386/pc/init.c (grub_arch_sync_caches): New function.
* util/misc.c (grub_arch_sync_caches): Likewise.
Modulize the partition map support and add support for the amiga
partition map.
* commands/ls.c: Include <grub/partition.h> instead of
<grub/machine/partition.h>.
* kern/disk.c: Likewise.
* kern/rescue.c: Likewise.
* loader/i386/pc/chainloader.c: Likewise.
* normal/cmdline.c: Likewise.
* kern/powerpc/ieee1275/init.c: Likewise.
(grub_machine_init): Call `grub_pc_partition_map_init',
`grub_amiga_partition_map_init' and
`grub_apple_partition_map_init'.
* conf/i386-pc.rmk (kernel_img_SOURCES): Remove
`disk/i386/pc/partition.c'. Add `kern/partition.c'.
(kernel_img_HEADERS): Remove `machine/partition.h'. Add
`partition.h' and `pc_partition.h'.
(grub_setup_SOURCES): Remove
`disk/i386/pc/partition.c'. Add `kern/partition.c',
`partmap/amiga.c', `partmap/apple.c' and `partmap/pc.c'.
(grub_emu_SOURCES): Likewise.
(pkgdata_MODULES): Add `amiga.mod', `apple.mod' and `pc.mod'.
(amiga_mod_SOURCES, amiga_mod_CFLAGS, apple_mod_SOURCES)
(apple_mod_CFLAGS, pc_mod_SOURCES, pc_mod_CFLAGS): New variables.
* conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Remove
`disk/powerpc/ieee1275/partition.c'. Add `kern/partition.c',
`partmap/amiga.c', `partmap/apple.c' and `partmap/pc.c'.
(grubof_SOURCES): Likewise.
* disk/i386/pc/partition.c: File removed.
* disk/powerpc/ieee1275/partition.c: Likewise.
* include/grub/powerpc/ieee1275/partition.h: Likewise.
* include/grub/i386/pc/partition.h: Likewise.
* kern/partition.c: New file.
* partmap/amiga.c: Likewise.
* partmap/apple.c: Likewise.
* partmap/pc.c: Likewise.
* include/grub/partition.h: Likewise..
* include/grub/pc_partition.h: Likewise.
* util/grub-emu.c: Include <grub/partition.h> instead of
<grub/machine/partition.h>.
(main): Call `grub_pc_partition_map_init',
`grub_amiga_partition_map_init' and
`grub_apple_partition_map_init' and deinitialize afterwards.
* util/i386/pc/biosdisk.c: Include `#include
<grub/partition.h>' and `include <grub/pc_partition.h>' instead of
`<grub/machine/partition.h>'.
* util/i386/pc/grub-setup.c: Likewise.
* util/i386/pc/biosdisk.c: Likewise.
(grub_util_biosdisk_get_grub_dev): Only access the PC specific
partition information in case of a PC partition.
* util/i386/pc/grub-setup.c: Include `#include
<grub/partition.h>' and `include <grub/pc_partition.h>' instead of
`<grub/machine/partition.h>'.
(setup): Only access the PC specific partition information in case
of a PC partition.
* kern/powerpc/ieee1275/openfw.c (grub_devalias_iterate): Skip any
property named `name'. Correctly handle the error returned by
`grub_ieee1275_finddevice' if a device can not be opened.
* include/grub/powerpc/ieee1275/ieee1275.h (abort): Add function
prototype.
* kern/powerpc/ieee1275/init.c (grub_machine_init): Call
grub_console_init first.
Change the memory range used for grub_ieee1275_claim and
grub_mm_init_region.
Print an error message if the claim fails.
Include <grub/misc.h>.
* disk/powerpc/ieee1275/ofdisk.c (grub_ofdisk_iterate):
Call grub_children_iterate for device nodes of type `scsi',
`ide', or `ata'.
(grub_ofdisk_open): Remove manual device alias resolution.
Fix memory leak when device cannot be opened.
* include/grub/powerpc/ieee1275/ieee1275.h
(grub_children_iterate): New prototype.
* kern/powerpc/ieee1275/openfw.c (grub_children_iterate):
New function.
* boot/powerpc/ieee1275/ieee1275.c (grub_ieee1275_get_property):
Return -1 if args.size was -1.
* boot/powerpc/ieee1275/ieee1275.c (grub_ieee1275_claim): change
void * arguments to grub_addr_t. All callers updated. Also make
the `result' argument optional.
(grub_ieee1275_release): change void * arguments to grub_addr_t.
All callers updated.
* commands/ls.c (grub_ls_list_files): Use the string following the
initial ')', if present, as the filesystem path.
* kern/rescue.c (grub_rescue_cmd_ls): Likewise.
* conf/powerpc-ieee1275.rmk (grubof_SOURCES): List crt0.S first.
From Hollis Blanchard <hollis@penguinppc.org>:
* kern/misc.c (memmove): New alias for grub_memmove.
(memcmp): New alias for grub_memcmp.
(memset): New alias for grub_memset.
* boot/powerpc/ieee1275/ieee1275.c (grub_ieee1275_get_property):
Change "int handle" to "grub_ieee1275_phandle_t handle".
* include/grub/powerpc/ieee1275/ieee1275.h
(grub_ieee1275_get_property): Likewise.
* normal/menu.c: Include grub/loader.h and grub/machine/time.h.
(print_message): Add a missing newline.
(run_menu): Added timeout support.
(run_menu_entry): New local function.
(grub_menu_run): Added support for booting.
* kern/loader.c (grub_loader_is_loaded): New function.
* include/grub/powerpc/ieee1275/time.h: Include grub/symbol.h.
(grub_get_rtc): Exported.
* include/grub/i386/pc/time.h: Include grub/symbol.h.
(grub_get_rtc): Exported.
* include/grub/normal.h (struct grub_command_list): Remove
constant from the member `command'.
* include/grub/loader.h (grub_loader_is_loaded): Declared.
* include/grub/err.h (GRUB_ERR_INVALID_COMMAND): New constant.
* conf/i386-pc.rmk (kernel_img_HEADERS): Added machine/time.h.
Add support for the JFS filesystem.
* fs/jfs.c: New file.
* include/grub/fs.h (grub_jfs_init): New prototype.
(grub_jfs_fini): New prototype.
* conf/i386-pc.rmk (grub_setup_SOURCES): Add fs/jfs.c.
(grub_emu_SOURCES): Likewise.
(pkgdata_MODULES): Add jfs.mod.
(jfs_mod_SOURCES): New variable.
(jfs_mod_CFLAGS): Likewise.
* conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Add fs.jfs.c.
(grubof_SOURCES): Likewise.
* util/grub-emu.c (main): Initialize and deinitialize JFS support.
* fs/fat.c (grub_fat_find_dir): Convert the filename little
endian to the host endian.
(grub_fat_utf16_to_utf8): Move function from there...
* kern/misc.c (grub_utf16_to_utf8): ...to here. Do not convert
the endianess of the source string anymore.
* include/grub/misc.h (grub_utf16_to_utf8): New prototype.
Each disk device has its own id now. This is useful to make use
of multiple disk devices.
* include/grub/disk.h (grub_disk_dev_id): New enum.
(GRUB_DISK_DEVICE_BIOSDISK_ID): New constant.
(GRUB_DISK_DEVICE_OFDISK_ID): Likewise.
* disk/i386/pc/biosdisk.c (grub_biosdisk_dev): Specify
GRUB_DISK_DEVICE_BIOSDISK_ID as an id.
* disk/powerpc/ieee1275/ofdisk.c (grub_ofdisk_dev): Specify
GRUB_DISK_DEVICE_OFDISK_ID as an id.
* util/i386/pc/biosdisk.c (grub_util_biosdisk_dev): Specify
GRUB_DISK_DEVICE_BIOSDISK_ID as an id.
* include/grub/disk.h (struct grub_disk_dev): Added a new member
"id" which is used by the cache manager.
* normal/main.c (grub_normal_init_page): Use "GNU GRUB" instead
of just "GRUB".
* normal/arg.c (grub_arg_parse): Correct error handling after
reallocating the argumentlist (check if `argl' is not null instead
of checking if `args' is not null).
* kern/mm.c (grub_realloc): Return the same pointer when using the
same region, instead of returning the header address.
* disk/powerpc/ieee1275/partition.c (grub_partition_iterate): Skip
one block instead of two when looking for the initial partition.
(grub_partition_probe): Initialize the local variable `p' with 0.
Use base 10 for the grub_strtoul call.
* kern/misc.c (grub_strncpy): Fix off by one bug. Eliminated the
need for one local variable.
(grub_strtoul): Don't add the new value to `num', instead of that
just assign it.
