* conf/i386-efi.rmk (grub_emu_SOURCES): Replace commands/i386/pc/halt.c and
reboot.c by commands/halt.c and reboot.c.
(grub_install_SOURCES): Add halt.mod and reboot.mod.
(halt_mod_SOURCES): New variable.
(halt_mod_CFLAGS): Likewise.
(halt_mod_LDFLAGS): Likewise.
(reboot_mod_SOURCES): Likewise.
(reboot_mod_CFLAGS): Likewise.
(reboot_mod_LDFLAGS): Likewise.
* conf/i386-ieee1275.rmk (grub_emu_SOURCES): Replace commands/ieee1275/halt.c
and reboot.c by commands/halt.c and reboot.c.
(halt_mod_SOURCES): Likewise.
(reboot_mod_SOURCES): Likewise.
* conf/i386-pc.rmk (grub_emu_SOURCES): Replace commands/i386/pc/reboot.c by
commands/reboot.c.
(reboot_mod_SOURCES): Likewise.
* commands/i386/pc/reboot.c: merge this file ...
* commands/ieee1275/reboot.c: ... and this file ...
* commands/reboot.c: ... to this file.
Add some precompiler directive to include the correct header for each
machine.
* commands/ieee1275/halt.c: move this file ...
* commands/halt.c: ... to here.
Add some precompiler directive to include the correct header for each
machine.
* include/grub/efi/efi.h (grub_reboot): New function declaration.
(grub_halt): Likewise.
* kern/efi/efi.c (grub_reboot): New function.
(grub_halt): Likewise.
* util/getroot.c (grub_guess_root_device): Inspect /dev/evms before
/dev (like it is done for /dev/mapper). This doesn't provide support
for EVMS, but at least it is now easy to identify the problem when it
arises.
* util/biosdisk.c (grub_util_biosdisk_open, linux_find_partition)
(grub_util_biosdisk_get_grub_dev): Check open() exit status by
comparing it with -1, not 0.
* kern/main.c (grub_load_normal_mode): Do not reset `grub_errno'. Call
grub_print_error() instead. This will let user know why we're entering
rescue mode.
Based on suggestions from Sam Morris.
* font/manager.c (unknown_glyph): Added variable for unknown glyph.
(fill_with_default_glyph): Changed to use unknown_glyph for fill
pattern for unknown glyphs.
* configure.ac: Probe for `help2man'.
* Makefile.in (builddir): New variable.
(HELP2MAN): Likewise. Set to `true' when @HELP2MAN@ doesn't provide it,
or otherwise add a few flags/options to it.
(install-local): For every executable utility or script that is
installed, invoke $(HELP2MAN) to install a manpage based on --help
output.
* util/i386/pc/grub-install.in: Move down `update-grub_lib' sourcing, so
that it doesn't prevent --help from working in build tree.
* util/i386/pc/grub-mkrescue.in (usage): Replace `grub-devel@gnu.org'
with `bug-grub@gnu.org'.
* util/powerpc/ieee1275/grub-mkrescue.in (usage): Likewise.
* util/update-grub.in (usage): New function.
Implement proper argument check, with support for --help and --version
(as well as existing -y).
* disk/raid.c (grub_raid_scan_device): Add a pair of sanity checks for
situations in which we can deduce the RAID size and the superblock
doesn't match it.
* disk/lvm.c [GRUB_UTIL] (grub_lvm_memberlist): New function. Construct
and return a grub_diskmemberlist_t composed of LVM physical volumes.
[GRUB_UTIL] (grub_lvm_dev): Add `memberlist' member.
* disk/raid.c [GRUB_UTIL] (grub_raid_memberlist): New function. Construct
and return a grub_diskmemberlist_t composed of physical array members.
[GRUB_UTIL] (grub_raid_dev): Add `memberlist' member.
* include/grub/disk.h [GRUB_UTIL] (grub_disk_memberlist): New struct
prototype.
[GRUB_UTIL] (struct grub_disk_dev): Add `memberlist' function pointer.
[GRUB_UTIL] (struct grub_disk_memberlist): New struct declaration.
[GRUB_UTIL] (grub_disk_memberlist_t): New typedef.
* util/grub-probe.c (probe): Move partmap probing code from here ...
(probe_partmap): ... to here.
(probe): Use probe_partmap() once for the disk we're probing, and
additionally, when such disk contains a memberlist() struct member,
once for each disk that is contained in the structure returned by
memberlist().
* util/grub-probe.c (main): When `verbosity > 1', set `debug'
environment variable to 'all' in order to obtain debug output from
non-util/ code.
* util/i386/pc/grub-setup.c (main): Likewise.
* disk/raid.c (grub_raid_scan_device): Check for
`array->device[sb.this_disk.number]' rather than for
`array->device[sb.this_disk.number]->name', since the latter is not
garanteed to be accessible.
* include/grub/raid.h (struct grub_raid_array): Change type of `device'
to a grub_disk_t array.
* disk/raid.c (grub_raid_read): Replace `device[x].disk' accesses with
`device[x]'.
(grub_raid_scan_device): Replace `device[x].name' accesses with
`device[x]->name'. Simplify initialization of `array->device[x]'.
* disk/raid.c (grub_raid_open, grub_raid_scan_device): Add a few
grub_dprintf() calls.
* kern/disk.c (grub_disk_read): Include grub_errmsg in out of range
error message.
Patch from Jeroen Dekkers.
* disk/raid.c (grub_raid_scan_device): Reset `grub_errno' on disk
failure, since succesfuly reading all array members might not be
required.
* fs/cpio.c (grub_cpio_find_file): Return GRUB_ERR_NONE
(and set *ofs = 0) instead of GRUB_ERR_FILE_NOT_FOUND on
last block of a cpio or tar stream.
Check for "TRAILER!!!" instead of any empty data
block to detect last block of a cpio stream.
(grub_cpio_dir): Fix constness of variable np.
(grub_cpio_open): Return GRUB_ERR_FILE_NOT_FOUND if
cpio or tar trailer is detected. This fixes a crash
on open of a non existing file.
* loader/i386/pc/multiboot.c (grub_multiboot_load_elf32): Get physical
address of entry.
(grub_multiboot_load_elf64): Likewise.
(grub_multiboot): Initialize mbi structure.
* util/grub-fstest.c: Don't include unused header file script.h.
* conf/common.rmk (grub-fstest.c_DEPENDENCIES): Move to the begginning
of file.
(grub_fstest_SOURCES): Likewise.
* include/grub/term.h (GRUB_TERM_LEFT, GRUB_TERM_RIGHT)
(GRUB_TERM_UP, GRUB_TERM_DOWN, GRUB_TERM_HOME, GRUB_TERM_END)
(GRUB_TERM_DC, GRUB_TERM_PPAGE, GRUB_TERM_NPAGE, GRUB_TERM_ESC)
(GRUB_TERM_TAB, GRUB_TERM_BACKSPACE): New macros.
* kern/i386/pc/startup.S: Include `<grub/term.h>'.
(translation_table): Replace hardcoded values with macros
provided by `<grub/term.h>'.
* term/i386/pc/at_keyboard.c: Include `<grub/term.h>'.
(keyboard_map): Correct/add a few values, with macros provided
by `<grub/term.h>'.
(keyboard_map_shift): Zero values that don't differ from their
`keyboard_map' equivalents.
(grub_console_checkkey): Optimize KEYBOARD_STATUS_CAPS_LOCK toggling.
Discard the second scan code that is always sent by Caps lock.
Only use `keyboard_map_shift' when it provides a non-zero value,
otherwise fallback to `keyboard_map'.
Make grub-setup handle a separate root device.
* util/i386/pc/grub-setup.c (setup): Always open the root device,
so that the root device can be compared with the destination
device.
When embedding the core image, if the root and destination devices
are different, set ROOT_DRIVE to ROOT_DEV->DISK->ID. Otherwise, to
0xFF.
When not embedding, set ROOT_DRIVE to 0xFF.
Add support for having a grub directory in a different drive. This
is still only the data handling part.
* kern/i386/pc/startup.S (multiboot_trampoline): Set %dh to 0xFF.
(codestart): Save %dh in GRUB_ROOT_DRIVE.
(grub_root_drive): New variable.
* kern/i386/pc/init.c (make_install_device): Use GRUB_ROOT_DRIVE
instead of GRUB_BOOT_DRIVE to construct a device name. Set
GRUB_ROOT_DRIVE to GRUB_BOOT_DRIVE if it is 0xFF, otherwise use it
as it was.
* include/grub/i386/pc/kernel.h (grub_root_drive): New prototype.
* include/grub/i386/pc/boot.h (GRUB_BOOT_MACHINE_ROOT_DRIVE): New
macro.
(GRUB_BOOT_MACHINE_DRIVE_CHECK): Set to 0x4f.
* boot/i386/pc/pxeboot.S (_start): Set %dh to 0xFF. For now, this
is bogus, because PXE booting does not specify any drive
correctly.
* boot/i386/pc/lnxboot.S (reg_edx): Set the second byte to 0xFF. I
am not sure if this is really correct.
* boot/i386/pc/cdboot.S: Set %dh to 0xFF, because the root drive
is always identical to the boot drive when booting from a CD.
* boot/i386/pc/boot.S (MOV_MEM_TO_AL): Removed. Not needed any
longer.
(root_drive): New variable.
(real_start): Unconditionally set %dh to ROOT_DRIVE.
(setup_sectors): Push %dx right after popping it, because %dh will
be modified later.
(copy_buffer): Restore %dx.
* a/kern/i386/pc/startup.S (grub_chainloader_real_boot): Pop
%edx and %esi from stack only after grub_gate_a20() is called.
grub_gate_a20() clobbers %edx.
* conf/i386-pc.rmk (pkglib_IMAGES): Add cdboot.img.
(cdboot_img_SOURCES): New variable.
(cdboot_img_ASFLAGS): New variable.
(cdboot_img_LDFLAGS): New variable.
* boot/i386/pc/cdboot.S: New file.
* disk/i386/pc/biosdisk.c (cd_start): New variable.
(cd_count): Likewise.
(grub_biosdisk_get_drive): Add support for cd device.
(grub_biosdisk_call_hook): Likewise.
(grub_biosdisk_iterate): Likewise.
(grub_biosdisk_open): Likewise.
(GRUB_BIOSDISK_CDROM_RETRY_COUNT): New macro.
(grub_biosdisk_rw): Support reading from cd device.
(GRUB_MOD_INIT): Iterate cd devices.
* include/grub/i386/pc/biosdisk.h (GRUB_BIOSDISK_FLAG_CDROM): New macro.
(GRUB_BIOSDISK_MACHINE_CDROM_START): Likewise.
(GRUB_BIOSDISK_MACHINE_CDROM_END): Likewise.
* kern/i386/pc/init.c (make_install_device): Check for cd device.
* fs/ufs.c (INODE_BLKSZ): Fix incorrect value.
(grub_ufs_get_file_block): Fix indirect block calculation problem.
* fs/xfs.c (grub_xfs_sblock): New member log2_dirblk.
(grub_xfs_btree_node): New structure.
(grub_xfs_btree_root): New structure.
(grub_xfs_inode): New members nblocks, extsize, nextents and btree.
(GRUB_XFS_EXTENT_OFFSET): Use exts instead of inode->data.extents.
(GRUB_XFS_EXTENT_BLOCK): Likewise.
(GRUB_XFS_EXTENT_SIZE): Likewise.
(grub_xfs_read_block): Support btree format type.
(grub_xfs_iterate_dir): Use NESTED_FUNC_ATTR in call_hook.
Use directory block as basic unit.
* fs/fshelp.c (grub_fshelp_read_file): Bug fix for sparse block.
* aclocal.m4 (grub_i386_CHECK_REGPARM_BUG): Define NESTED_FUNC_ATTR as
__attribute__ ((__regparm__ (1))).
Correct a mistake in previous commit.
* conf/i386-pc.rmk (normal/execute.c_DEPENDENCIES): Move to the
top.
(normal/command.c_DEPENDENCIES): New variable.
* util/powerpc/ieee1275/grub-mkrescue.in: New file.
* conf/powerpc-ieee1275.rmk: Add grub-mkrescue support for
PowerPC.
* DISTLIST: Add util/powerpc/ieee1275/grub-mkrescue.in.
to create a gap between _end and the modules added to the image
with grub-mkrescue. That fixes "CLAIM failed" on PowerMAC.
* kern/powerpc/ieee1275/init.c: Use GRUB_MOD_GAP.
* util/elf/grub-mkimage.c (add_segments): Likewise.
* fs/reiserfs.c (grub_fshelp_node): New member next_offset.
(grub_reiserfs_get_item): Save offset of the next item.
(grub_reiserfs_iterate_dir): Use next_offset to find next item.
that hang if GRUB tries to setup colors.
* term/ieee1275/ofconsole.c (grub_ofconsole_init): Don't set
colors for firmwares that don't support it.
* kern/powerpc/ieee1275/cmain.c (grub_ieee1275_set_flag):
Recognize Open Hack'Ware, set flags to work around its
limitations.
* fs/ufs.c (GRUB_UFS_VOLNAME_LEN): New macro.
(grub_ufs_sblock): New member volume name.
(grub_ufs_find_file): Fix string copy bug.
(grub_ufs_label): Implement this function properly.
* fs/hfs.c (grub_hfs_cnid_type): New enum.
(grub_hfs_iterate_records): Use the correct file number for extents
and catalog file. Fix problem in next index calculation.
(grub_hfs_find_node): Replace recursive function call with loop.
(grub_hfs_iterate_dir): Replace recursive function call with loop.
* term/i386/pc/at_keyboard.c (grub_keyboard_isr): #ifdef out
grub_dprintf calls, since they make "debug=all" mode unusable.
(grub_console_checkkey): Likewise.
* kern/i386/pc/init.c (make_install_device): When memdisk image is
present, "(memdisk)/boot/grub" becomes the default prefix.
* util/i386/pc/grub-mkrescue.in: Switch to a minimal core.img plus
a memdisk tarball with all the modules. Add --overlay=DIR option that
allows users to overlay additional files into the image.
* conf/i386-ieee1275.rmk (kernel_elf_SOURCES): Add `machine/loader.h'
and `machine/memory.h'.
(pkglib_MODULES): Add `multiboot.mod' and `_multiboot.mod'.
(_multiboot_mod_SOURCES): New variable.
(_multiboot_mod_CFLAGS): Likewise.
(_multiboot_mod_LDFLAGS): Likewise.
(multiboot_mod_SOURCES): Likewise.
(multiboot_mod_CFLAGS): Likewise.
(multiboot_mod_LDFLAGS): Likewise.
* include/grub/i386/ieee1275/loader.h: New file.
* include/grub/i386/ieee1275/machine.h: Likewise.
* include/grub/i386/ieee1275/memory.h: Likewise.
* include/grub/i386/pc/init.h (grub_os_area_addr): Remove (redundant)
variable declaration.
(grub_os_area_size): Likewise.
* kern/i386/ieee1275/init.c (grub_os_area_addr, grub_os_area_size)
(grub_lower_mem, grub_upper_mem): New variables.
(grub_stop_floppy): New function (just to make
grub_multiboot2_real_boot() happy).
* kern/i386/ieee1275/startup.S: Include `<grub/machine/memory.h>',
`<grub/cpu/linux.h>', `<multiboot.h>' and `<multiboot2.h>'.
(grub_stop): New function.
Include `"../realmode.S"' and `"../loader.S"'.
* loader/multiboot_loader.c: Include `<grub/machine/machine.h>'.
Replace `__i386__' #ifdefs with `GRUB_MACHINE_PCBIOS'.
* loader/powerpc/ieee1275/multiboot2.c (grub_mb2_arch_boot): On i386,
rely on grub_multiboot2_real_boot() for final boot.
* disk/ieee1275/ofdisk.c (grub_ofdisk_iterate): When
`GRUB_IEEE1275_FLAG_OFDISK_SDCARD_ONLY' flag is set, skip any
device that doesn't look like an SD card.
* include/grub/ieee1275/ieee1275.h (grub_ieee1275_flag): Add
`GRUB_IEEE1275_FLAG_OFDISK_SDCARD_ONLY' flag.
* kern/powerpc/ieee1275/cmain.c (grub_ieee1275_set_flag): Detect
OLPC laptop, and set `GRUB_IEEE1275_FLAG_OFDISK_SDCARD_ONLY' when
found.
* conf/i386-pc.rmk (GRUB_MEMORY_MACHINE_LINK_ADDR): New variable.
(kernel_img_LDFLAGS): Use `GRUB_MEMORY_MACHINE_LINK_ADDR' as link
address.
(grub_mkimage_CFLAGS): Propagate `GRUB_MEMORY_MACHINE_LINK_ADDR' as
a C macro.
* include/grub/i386/pc/memory.h (GRUB_MEMORY_MACHINE_UPPER): New macro.
Indicates start of upper memory.
* util/i386/pc/grub-mkimage.c: Include `<grub/machine/memory.h>'.
(generate_image): Abort when image size is big enough to corrupt
upper memory.
* include/grub/i386/pc/vga.h: Include `<grub/machine/memory.h>'.
(GRUB_MEMORY_MACHINE_VGA_ADDR): Alias for `GRUB_MEMORY_MACHINE_UPPER'.
* term/i386/pc/vga.c (VGA_MEM): Use `GRUB_MEMORY_MACHINE_VGA_ADDR'
instead of hardcoding 0xA0000.
* video/i386/pc/vbe.c: Include `<grub/machine/vga.h>'.
(grub_vbe_set_video_mode): Use `GRUB_MEMORY_MACHINE_VGA_ADDR'
instead of hardcoding 0xA0000.
Fix detection of very small filesystems (like tar).
* fs/reiserfs.c (grub_reiserfs_mount): When disk is too small to
contain a ReiserFS, abort with GRUB_ERR_BAD_FS rather than
GRUB_ERR_OUT_OF_RANGE (which made the upper layer think there's
a problem with this disk).
* include/grub/i386/pc/kernel.h: Include `<grub/symbol.h>'.
* include/grub/kernel.h (grub_arch_memdisk_addr,
grub_arch_memdisk_size): Moved from here ...
* include/grub/i386/pc/kernel.h (grub_arch_memdisk_addr,
grub_arch_memdisk_size): ... to here.
Mostly based on bugfix from Bean.
* kern/elf.c (grub_elf32_phdr_iterate): Use `NESTED_FUNC_ATTR'
attribute with hook() parameter.
(grub_elf32_load): Use `NESTED_FUNC_ATTR' with grub_elf32_load_segment()
declaration.
(grub_elf64_phdr_iterate): Use `NESTED_FUNC_ATTR'
attribute with hook() parameter.
(grub_elf64_load): Use `NESTED_FUNC_ATTR' with grub_elf64_load_segment()
declaration.
* conf/i386-pc.rmk (kernel_img_HEADERS): Add `machine/kernel.h'.
(pkglib_MODULES): Add `memdisk.mod'.
(memdisk_mod_SOURCES): New variable.
(memdisk_mod_CFLAGS): Likewise.
(memdisk_mod_LDFLAGS): Likewise.
* disk/memdisk.c: New file.
* include/grub/disk.h (grub_disk_dev_id): Add
`GRUB_DISK_DEVICE_MEMDISK_ID'.
* include/grub/i386/pc/kernel.h
(GRUB_KERNEL_MACHINE_MEMDISK_IMAGE_SIZE): New macro.
(GRUB_KERNEL_MACHINE_PREFIX): Increment by 4.
(grub_kernel_image_size): New variable declaration.
(grub_total_module_size): Likewise.
(grub_memdisk_image_size): Likewise.
* include/grub/i386/pc/memory.h
(GRUB_MEMORY_MACHINE_DECOMPRESSION_ADDR): New macro.
* include/grub/kernel.h: Include `<grub/symbol.h>'.
(grub_arch_memdisk_addr): New variable declaration.
(grub_arch_memdisk_size): Likewise.
* kern/i386/pc/init.c (grub_arch_memdisk_addr): New function.
(grub_arch_memdisk_size): Likewise.
* kern/i386/pc/startup.S (grub_memdisk_image_size): New variable.
(codestart): Replace hardcoded `0x100000' with
`GRUB_MEMORY_MACHINE_DECOMPRESSION_ADDR' macro.
* util/i386/pc/grub-mkimage.c: Include `<grub/misc.h>'.
(generate_image): Add `memdisk_path' parameter. When `memdisk_path' is
not NULL, append the contents of the file it refers to, at the end of
the compressed kernel image. Initialize `grub_memdisk_image_size'
variable (at `GRUB_KERNEL_MACHINE_MEMDISK_IMAGE_SIZE' offset).
(options): Add "memdisk"|'m' option.
(main): Parse --memdisk|-m option, and pass user-provided path as
parameter to generate_image().
Fix detection of "real mode" when /options/real-mode? doesn't exist.
* include/grub/ieee1275/ieee1275.h (grub_ieee1275_mmu): New variable
declaration.
* kern/powerpc/ieee1275/cmain.c (grub_ieee1275_mmu): New variable.
(grub_ieee1275_find_options): If `grub_ieee1275_mmu' is 0, set
`GRUB_IEEE1275_FLAG_REAL_MODE'.
(cmain): Intialize `grub_ieee1275_mmu' (using /chosen/mmu integer
property).
* kern/powerpc/ieee1275/openfw.c (grub_map): Rely on pre-initialized
`grub_ieee1275_mmu' rather than obtaining a handler on every call.
Get rid of confusing function (superceeded by
`grub_ieee1275_get_integer_property')
* include/grub/ieee1275/ieee1275.h (grub_ieee1275_decode_int_4): Remove
prototype.
* kern/ieee1275/ieee1275.c (grub_ieee1275_decode_int_4): Remove
function.
* term/ieee1275/ofconsole.c (grub_ofconsole_init): Avoid use of
grub_ieee1275_decode_int_4(), by obtaining integer properties directly
in native endianess from grub_ieee1275_get_integer_property().
* kern/powerpc/ieee1275/openfw.c (grub_halt): Issue "power-off"
command after "shut-down", since implementations differ on which
the command for halt is.
PowerPC changes provided by Pavel Roskin.
* kern/powerpc/ieee1275/cmain.c (cmain): Don't take any arguments.
* kern/powerpc/ieee1275/crt0.S: Store r5 in grub_ieee1275_entry_fn,
don't rely on cmain() doing it.
* kern/i386/ieee1275/startup.S (_start): Store %eax in
grub_ieee1275_entry_fn, don't rely on cmain() doing it.
* include/grub/i386/linuxbios/memory.h
(GRUB_MEMORY_MACHINE_LINUXBIOS_TABLE_ADDR): Remove macro.
* kern/i386/linuxbios/table.c (grub_linuxbios_table_iterate): Do not
receive `table_header' as argument. Instead, probe for it in the
known memory ranges where it can be present.
(grub_available_iterate): Do not pass a fixed `table_header' address
to grub_linuxbios_table_iterate().
* include/grub/ieee1275/ieee1275.h
(grub_ieee1275_get_integer_property): New function prototype.
* kern/ieee1275/ieee1275.c: Include `<grub/types.h>'.
(grub_ieee1275_get_integer_property): New function. Wraps around
grub_ieee1275_get_property() to handle endianess.
* kern/powerpc/ieee1275/cmain.c (grub_ieee1275_find_options): Replace
grub_ieee1275_get_property() with grub_ieee1275_get_integer_property()
where appropiate.
* kern/powerpc/ieee1275/openfw.c (grub_available_iterate): Likewise.
(grub_map): Likewise.
* kern/sparc64/ieee1275/openfw.c (grub_map): Likewise.
* normal/execute.c (grub_script_exec_argument_to_string): Check for undefined variable.
(grub_script_execute_cmdline): Reset grub_errno.
* normal/main.c (read_config_file): Reset grub_errno.
* normal/parse.y (script_init): New.
(script): Move function and menuentry here.
(delimiter): New.
(command): Add delimiter at the end of command.
(commands): Adjust to match the new command.
(commandblock): Remove grub_script_lexer_record_start.
(menuentry): Add grub_script_lexer_record_start, use the new commands.
(if): Use the new commands.
* conf/common.rmk (pkgdata_MODULES): Add echo.mod.
* normal/menu.c (run_menu): Move timeout message from here ...
(print_timeout): ... to here.
(run_menu): Use print_timeout() once during initial draw to print
the whole message, and again in every clock tick to update only
the number of seconds.
* kern/powerpc/ieee1275/openfw.c (grub_available_iterate): Obtain
actual size of `available' from grub_ieee1275_get_property(), and
restrict parsing to that bound.
* include/grub/util/getroot.h (grub_dev_abstraction_types): New enum.
(grub_util_get_dev_abstraction): New function prototype.
* util/getroot.c: Include `<grub/util/getroot.h>'
(grub_util_get_grub_dev): Move detection of abstraction type to ...
(grub_util_get_dev_abstraction): ... here (new function).
* util/grub-probe.c: Convert PRINT_* to an enum. Add
`PRINT_ABSTRACTION'.
(probe): Probe for abstraction type when requested.
(main): Understand `--target=abstraction'.
* util/i386/efi/grub-install.in: Add abstraction module to core
image when it is found to be necessary.
* util/i386/pc/grub-install.in: Likewise.
* util/powerpc/ieee1275/grub-install.in: Likewise.
* util/update-grub_lib.in (font_path): Return system path without
converting to GRUB path.
* util/update-grub.in: Convert system path returned by font_path()
to a GRUB path. Use `grub-probe -t abstraction' to determine what
abstraction module is needed for loading fonts (if any). Export
that as `GRUB_PRELOAD_MODULES'.
* util/grub.d/00_header.in: Process `GRUB_PRELOAD_MODULES' (print
insmod commands).
