YYYY-MM-DD Carles Pina i Estany <carles@pina.cat>
* Makefile.in: Add uptrans target to help to update .pot file
* conf/common.rmk: Add grub-gettext_lib target, dependency and SOURCES, CFLAGS, LDFLAGS
* kern/misc.c: Define grub_gettext symbol and add implement grub_gettext_dummy function
* po/TODO: Temporary file with instructions of what Makefile.in will do
* po/ca.po: Catalan translation stub
* include/grub/misc.h: Define macro _(char *s). Declare grub_gettext_dummy and grub_gettext
* gettext/gettext.c: New file with gettext implementation
* normal/menu.c (print_message): add _( ) to some strings
* util/grub.d/10_linux.in: include grub-gettext_lib file. For the Linux menuentry, call eval_gettext
* util/grub.d/00_header.in: add locale_prefix and gettext locale detection and setting up the access to the mo directory
* util/grub-mkconfig_lib.in: add get_locale_lang
* util/grub-gettext_lib.in: new file
* util/mkisofs/eltorito.c (init_boot_catalog): Handle return code
of write calls (converting them to fwrite() if they aren't already).
(get_torito_desc): Likewise.
* util/mkisofs/rock.c (generate_rock_ridge_attributes): Likewise.
Support for El Torito without floppy emulation.
* util/mkisofs/eltorito.c: Include `<errno.h>'.
(init_boot_catalog): Improve error handling.
(get_torito_desc): Don't use floppy emulation unless requested by
user. Patch boot information table when requested via
`-boot-info-table'.
* util/mkisofs/iso9660.h (struct eltorito_boot_info): New struct.
* util/mkisofs/mkisofs.c (use_eltorito_emul_floppy)
(use_boot_info_table): New variables.
(OPTION_BOOT_INFO_TABLE, OPTION_NO_EMUL_BOOT)
(OPTION_ELTORITO_EMUL_FLOPPY): New macros.
(ld_options): Handle `-boot-info-table', `-no-emul-boot' and
`--eltorito-emul-floppy'.
(main): Handle `OPTION_BOOT_INFO_TABLE', `OPTION_NO_EMUL_BOOT'
and `OPTION_ELTORITO_EMUL_FLOPPY'.
* util/mkisofs/mkisofs.h (use_eltorito_emul_floppy)
(use_boot_info_table, get_731): New prototypes.
* util/mkisofs/write.c (get_731): New function.
Large file support for grub-mkisofs.
* conf/common.rmk (grub_mkisofs_CFLAGS): Add `-D_FILE_OFFSET_BITS=64'.
* util/mkisofs/mkisofs.c (next_extent, last_extent)
(session_start): Upgrade type to `uint64_t'. Update all users.
* util/mkisofs/mkisofs.h: Include `<stdint.h>'.
(struct directory_entry): Upgrade type of `starting_block' and
`size' to `uint64_t'. Update all users.
(struct deferred): Remove unused structure.
(xfwrite): Upgrade type of `count' and `size' to `uint64_t'.
Update all users.
* util/mkisofs/tree.c (stat_filter, lstat_filter): Return -1 when
file is larger than `UINT32_MAX'.
* util/mkisofs/write.c (xfwrite): Upgrade type of `count' and
`size' to `uint64_t'. Update all users. Fix handling of fwrite()
return value.
(struct deferred_write): Upgrade type of `extent' and `size' to
`uint64_t'. Update all users.
(last_extent_written): Upgrade type to `uint64_t'. Update all
users.
(write_one_file): Upgrade type of `count' and `size' to `uint64_t'.
Update all users. Upgrade type of `remain' to `int64_t' and
`use' to `size_t'. Use error() to handle fread() errors.
(write_files): Rely on write_one_file() rather than calling
xfwrite() directly.
* util//grub-mkconfig_lib.in (bindir): New variable.
(grub_mkrelpath): Likewise.
Properly set path variable. Use ${grub_mkrelpath} instead of
calling it directly.
2009-11-02 Felix Zielcke <fzielcke@z-51.de>
* util/probe.c (probe): Make the file path relative to its root.
Change a info message to use the GRUB path. Enable again the
check if we can read the file with GRUB facilities.
2009-11-01 Felix Zielcke <fzielcke@z-51.de>
* util/grub-mkrelpath.c: New file.
* conf/common.rmk (bin_UTILITIES): Add grub-mkrelpath.
(grub_mkrelpath_SOURCES): New variable.
* include/grub/util/misc.h: New function prototype.
* util/misc.c (make_system_path_relative_to_its_root): New function.
* util/grub-mkconfig_lib.in (make_system_path_relative_to_its_root):
Use grub-mkrelpath.
* util/grub-editenv.c (main): If only a command is given, use
DEFAULT_DIRECTORY "/" GRUB_ENVBLK_DEFCFG as a default file name.
(usage): FILENAME is now optional and has a default.
Improve grub-mkconfig performance when there are several menu
entries on a single filesystem.
* util/grub.d/10_linux.in (linux_entry): Cache the output of
prepare_grub_to_access_device.
* util/grub.d/10_kfreebsd.in (kfreebsd_entry): Likewise.
* util/grub.d/30_os-prober.in: Likewise.
* util/grub.d/10_freebsd.in: Remove.
* util/grub.d/10_kfreebsd.in: New file (based on 10_linux.in).
* configure.ac: Set host_kernel=kfreebsd for FreeBSD and GNU/kFreeBSD.
* util/grub.d/10_freebsd.in: Remove.
* util/grub.d/10_kfreebsd.in: New file (based on 10_linux.in).
* configure.ac: Set host_kernel=kfreebsd for FreeBSD and GNU/kFreeBSD.
Patch from Samuel Thibault <samuel.thibault@ens-lyon.org>
* docs/grub.cfg: Compensate for recent change in multiboot
loader (since 2009-08-14 it won't pass filename to payload).
* util/grub.d/10_hurd.in: Likewise.
Refer to kernel of FreeBSD "kFreeBSD" to avoid confusion between
the Operating System (FreeBSD) and its kernel (kernel of FreeBSD).
* loader/i386/bsd.c (grub_freebsd_boot): Read kernel environment
from "kFreeBSD" namespace (rather than "FreeBSD"). Update all
users.
(GRUB_MOD_INIT (bsd)): Rename "freebsd" command to "kfreebsd",
"openbsd" to "kopenbsd", "netbsd" to "knetbsd", "freebsd_loadenv"
to "kfreebsd_loadenv", "freebsd_module" to "kfreebsd_module",
and "freebsd_module_elf" to "kfreebsd_module_elf". Update all
users.
* util/i386/pc/grub-install.in: Source
${libdir}/grub/grub-mkconfig_lib before option processing, in order
that the --grub-probe option will work.
* util/sparc64/ieee1275/grub-install.in: Likewise.
* include/grub/kernel.h (struct grub_module_header): Remove
`grub_module_header_types'. Make `type' unsigned. Make `size'
32-bit on all platforms.
* util/elf/grub-mkimage.c (load_modules): Treat `type' as an
8-bit field. Use grub_host_to_target32() for `size'.
* util/i386/efi/grub-mkimage.c (make_mods_section): Likewise.
* util/i386/pc/grub-mkimage.c (generate_image): Likewise.
* util/sparc64/ieee1275/grub-mkimage.c (generate_image): Likewise.
* util/grub.d/30_os-prober.in: Don't throw away stderr from
os-prober. Under normal operation, it does not print anything to
stderr; if it does, we need to debug it, and throwing away stderr
makes that excessively difficult.
* util/grub-probe.c (probe): Comment out buggy codepath, which
was unexpectedly enabled by Colin Watson's 2009-09-02 fix. This
should be re-enabled after 1.97.
* util/grub.d/00_header.in: Move check for the video backend of
gfxterm from here ...
* util/grub-mkconfig.in: ... to here. Enable gfxterm if there's
a suitable video backend.
Rename *_partition_map to part_*
* partmap/acorn.c (grub_acorn_partition_map): Set name to 'part_acorn'.
* partmap/amiga.c (grub_amiga_partition_map): Set name to 'part_amiga'.
* partmap/apple.c (grub_apple_partition_map): Set name to 'part_apple'.
* partmap/gpt.c (grub_gpt_partition_map): Set name to 'part_gpt'.
All users updated.
* partmap/msdos.c (grub_msdos_partition_map): Set name to 'part_msdos'.
All users updated.
* partmap/sun.c (grub_sun_partition_map): Set name to 'part_sun'.
* util/grub-probe.c (probe_partmap): Don't transform partition name
to get module name.
* util/grub-dumpdevtree: Moved from here ...
* util/i386/efi/grub-dumpdevtree: ... to here.
(hexify): New function. Converts a string to its hex version.
Generate hex versions of "efi" and "device-properties" by calling
hexify() on the ASCII strings rather than by hardcoding numbers.
* util/grub-mkconfig_lib.in (version_test_numeric): Don't use
the "g" modifier in sed when the intention is to strip something
once. This fixes comparison of kernels with multiple dashes.
* util/grub-mkconfig_lib.in (font_path): Move the functionality
of it to ...
* util/grub-mkconfig.in: ... here. Prefer unicode.pf2 and
unifont.pf2 over ascii.pf2. Export LANG=C in case ascii.pf2 gets used.
2009-08-07 Robert Millan <rmh.grub@aybabtu.com>
* util/grub.d/10_linux.in (test_numeric): Moved from here ...
* util/grub-mkconfig_lib.in (version_test_numeric): ... to here.
Update all users.
* util/grub.d/10_linux.in (test_gt): Strip any basename prefix,
not just "vmlinu[zx]".
Moved from here ...
* util/grub-mkconfig_lib.in (version_test_gt): ... to here. Update
all users.
* util/grub.d/10_linux.in (find_latest): Moved from here ...
* util/grub-mkconfig_lib.in (version_find_latest): ... to here. Update
all users.
2009-08-07 Robert Millan <rmh.grub@aybabtu.com>
* util/grub.d/10_linux.in (test_numeric): Moved from here ...
* util/grub-mkconfig_lib.in (version_test_numeric): ... to here.
Update all users.
* util/grub.d/10_linux.in (test_gt): Strip any basename prefix,
not just "vmlinu[zx]".
Moved from here ...
* util/grub-mkconfig_lib.in (version_test_gt): ... to here. Update
all users.
* util/grub.d/10_linux.in (find_latest): Moved from here ...
* util/grub-mkconfig_lib.in (version_find_latest): ... to here. Update
all users.
* disk/lvm.c (grub_lvm_scan_device): Ignore extra copy of metadata.
Don't change pv->disk if it's already set.
* disk/raid.c (grub_raid_scan_device): Merge this function into ...
(grub_raid_register): ... here.
(grub_raid_rescan): Removed.
* include/grub/raid.h (grub_raid_rescan): Removed.
* util/grub-fstest.c: Remove include file <grub/raid.h>.
(fstest): Replace grub_raid_rescan with module fini function followed
by init function.
* util/grub-probe.c: Add include file <grub/raid.h>.
(probe_raid_level): New function.
(probe): Detect abstraction by walking the disk device, support two
level of abstraction (LVM on RAID) when detecting partition map.
* util/grub-mkconfig.in (GRUB_DISABLE_LINUX_RECOVERY): Export
variable.
* util/grub.d/10_linux.in: If GRUB_DISABLE_LINUX_RECOVERY is true,
don't write a menu entry for recovery mode.
* include/grub/i386/loader.h (grub_linux_prot_size)
(grub_linux_tmp_addr, grub_linux_real_addr)
(grub_linux_is_bzimage, grub_linux16_boot): Declare only on
GRUB_MACHINE_PCBIOS.
* util/i386/pc/grub-mkimage.c (compress_kernel): Move
common grub_util_info() call to ...
(generate_image): ... here.
Fix use of uninitialized memory, comparison of signed with
unsigned integers and memory leak.
Remove bogus module address message.
* util/elf/grub-mkimage.c (usage): Prefix each option line with two
spaces, for the benefit of help2man.
* util/i386/efi/grub-mkimage.c (usage): Likewise.
* boot/i386/pc/boot.S: Remove root_drive. Assert offset of
boot_drive_check by using GRUB_BOOT_MACHINE_DRIVE_CHECK. Don't
save %dx, we only need %dl and we never change it.
* boot/i386/pc/cdboot.S: Don't set the root drive.
* boot/i386/pc/pxeboot.S: Likewise.
* include/grub/i386/pc/boot.h: Remove
GRUB_BOOT_MACHINE_ROOT_DRIVE, adjust
GRUB_BOOT_MACHINE_DRIVE_CHECK.
* include/grub/i386/pc/kernel.h: Remove grub_root_drive.
* kern/i386/pc/init.c (make_install_device): Remove references
to grub_root_drive.
* kern/i386/pc/startup.S: Likewise.
* util/i386/pc/grub-setup.c (setup): Don't set root_drive.
* util/grub.d/30_os-prober.in: Fix a comment. Source
${libdir}/grub/grub-mkconfig_lib. Use prepare_grub_to_access_device
to set the root device. Place drivemap command in the generated
chain entry.
Use grub-macho2img when compiling with Apple's CC for PCBIOS machine
* conf/common.rmk (bin_UTILITIES): add (on false on condition)
grub-macho2img
(CLEANFILES): add grub-macho2img
(grub_macho2img_SOURCES): new variable
* kern/i386/pc/startup.S (bss_start): new variable
(bss_end): likewise
* genmk.rb: use grub-macho2img for *.img when compiled with Apple's CC
* util/grub-macho2img.c: new file
Fix wrong assumptions with grub-mkimage on EFI
* i386/efi/grub-mkimage.c (read_kernel_module): don't write prefox here
(relocate_addresses): consider both r_addend and value at offset
(make_mods_section): zerofill modinfo and header
(convert_elf): write prefix here
gfxpayload support
* commands/videotest.c (grub_cmd_videotest): use grub_video_set_mode
* include/grub/video.h (GRUB_VIDEO_MODE_TYPE_PURE_TEXT): new definition
(grub_video_setup): remove
(grub_video_set_mode): new prototype
* loader/i386/linux.c (DEFAULT_VIDEO_MODE): new definition
(vid_mode): remove
(linux_vesafb_res): compile only on PCBIOS
(grub_linux_boot): support gfxpayload
* loader/i386/pc/xnu.c (video_hook): new function
(grub_xnu_set_video): support gfxpayload
* term/gfxterm.c (DEFAULT_VIDEO_WIDTH): removed
(DEFAULT_VIDEO_HEIGHT): likewise
(DEFAULT_VIDEO_FLAGS): likewise
(DEFAULT_VIDEO_MODE): new definition
(video_hook): new function
(grub_gfxterm_init): use grub_video_set_mode
* util/grub.d/30_os-prober.in: remove explicit modesetting before
loading xnu
* video/video.c (grub_video_setup): removed
(grub_video_set_mode): new function based on grub_gfxterm_init and
grub_video_setup
Prevent GRUB from probing floppies during boot.
* conf/common.rmk (search_mod_CFLAGS): Use `-Werror -Wall'.
* commands/search.c (options): Add --no-floppy.
(search_fs, search_file, grub_cmd_search): Support --no-floppy.
* util/grub-mkconfig_lib.in (prepare_grub_to_access_device): Use
--no-floppy when searching for UUIDs.
* include/grub/kernel.h (grub_module_header_types): Add type
OBJ_TYPE_CONFIG.
* kern/main.c (grub_load_config): New function.
(grub_main): Call grub_load_config to read boot config.
* grub-mkimage (generate_image): New parameter config_path.
(options): New option --config.
(main): Parse --config option, and pass it to generate_image.
(grub_ofdisk_open): Use it to un-escape "," characters.
* kern/disk.c (find_part_sep): New.
(grub_disk_open): Use it to find the first non-escaped ','
character in the disk name.
* util/ieee1275/devicemap.c (escape_of_path): New.
(grub_util_emit_devicemap_entry): Use it.
* util/sparc64/ieee1275/grub-install.in: Update script to
strip partition specifiers properly by not triggering on
'\' escaped ',' characters.
* util/misc.c (grub_util_warn): New function. Emmits a warning
unconditionally.
* include/grub/util/misc.h (grub_util_warn): New declaration.
* util/i386/pc/grub-install.in: Understand --force and pass it down
to grub-setup.
* util/i386/pc/grub-setup.c (main): Understand --force and pass it
down to setup().
(setup): Improve error messages and add warnings when requested to
install in odd layouts. Refuse to install using blocklists unless
--force was set.
* conf/common.rmk (grub_script.tab.c): Change normal/parser.y to
script/sh/parser.y.
(pkglib_MODULES): Add normal.mod and sh.mod.
(normal_SOURCES): New variable.
(normal_mod_CFLAGS): Likewise.
(normal_mod_LDFLAGS): Likewise.
(sh_mod_SOURCES): Likewise.
(sh_mod_CFLAGS): Likewise.
(sh_mod_LDFLAGS): Likewise.
* conf/i386-pc.rmk (normal/lexer.c_DEPENDENCIES): Changed to
script/sh/lexer.c_DEPENDENCIES.
(kernel_img_SOURCES): Remove kern/rescue.c, and kern/reader.c,
kern/rescue_reader.c and kern/rescue_parser.c.
(kernel_img_HEADERS): Remove rescue.h, add reader.h.
(grub_emu_SOURCES): Change source files.
(pkglib_MODULES): Remove normal.mod.
(normal_SOURCES): Removed.
(normal_mod_CFLAGS): Likewise.
(normal_mod_LDFLAGS): Likewise.
* conf/i386-coreboot.rmk: Likewise.
* conf/i386-efi.rmk: Likewise.
* conf/i386-ieee1276.rmk: Likewise.
* conf/powerpc-ieee1275.rmk: Likewise.
* conf/sparc64-ieee1275.rmk: Likewise.
* conf/x86_64-efi.rmk: Likewise.
* include/grub/command.h (grub_command_execute): New inline function.
* include/grub/menu.h (grub_menu_entry): Removed commands field.
* include/grub/normal.h: Remove <grub/setjmp.h>.
(grub_fs_module_list): Moved to normal/autofs.c.
(grub_exit_env): Removed.
(grub_command_execute): Likewise.
(grub_normal_menu_addentry): Renamed to grub_menu_addentry, removed
parameter script.
(read_command_list): New function declaration.
(read_fs_list): Likewise.
* include/parser.h: Include <grub/reader.h>.
(grub_parser_split_cmdline): Change type of getline parameter.
(grub_parser): New structure.
(grub_parser_class): New variable.
(grub_parser_execute): New function declaration.
(grub_register_rescue_parser): Likewise.
(grub_parser_register): New inline function.
(grub_parser_unregister): Likewise.
(grub_parser_get_current): Likewise.
(grub_parser_set_current): Likewise.
* include/grub/reader.h: New file.
* kern/reader.c: Likewise.
* kern/rescue_parser.c: Likewise.
* kern/rescue_reader.c: Likewise.
* normal/autofs.c: Likewise.
* normal/dyncmd.c: Likewise.
* include/grub/rescue.h: Removed.
* normal/command.h: Likewise.
* include/grub/script.h: Moved to ...
* include/grub/script_sh.h: ... Moved here.
* normal/execute.c: Moved to ...
* script/sh/execute.c: ... Moved here.
* normal/function.c: Moved to ...
* script/sh/function.c: ... Moved here.
* normal/lexer.c: Moved to ...
* script/sh/lexer.c: ... Moved here.
* normal/parser.y: Moved to ...
* script/sh/parser.y: ... Moved here.
* normal/script.c: Moved to ...
* script/sh/script.c: ... Moved here.
* normal/main.c: Remove <grub/rescue.h> and <grub/script.h>, include
<grub/reader.h>.
(grub_exit_env): Removed.
(fs_module_list): Moved to normal/autofs.c.
(grub_file_getline): Don't handle comment here.
(free_menu): Skip removed field entry->commands.
(grub_normal_menu_addentry): Removed as grub_menu_entry, removed
script parameter.
(read_config_file): Removed nested parameter, change getline function.
(grub_enter_normal_mode): Removed.
(grub_dyncmd_dispatcher): Moved to normal/dyncmd.c.
(read_command_list): Likewise.
(autoload_fs_module): Moved to normal/autofs.c.
(read_fs_list): Likewise.
(reader_nested): New variable.
(grub_normal_execute): Run parser.sh to switch to sh parser.
(grub_cmd_rescue): Removed.
(cmd_normal): Removed.
(grub_cmd_normal): Unregister itself at the beginning. Don't register
rescue command.
(grub_cmdline_run): New function.
(grub_normal_reader_init): Likewise.
(grub_normal_read_line): Likewise.
(grub_env_write_pager): Likewise.
(cmdline): New variable.
(grub_normal_reader): Likewise.
(GRUB_MOD_INIT): Register normal reader and set as current, register
pager hook, register normal command with grub_register_command_prio,
so that it won't show up in command.lst.
(GRUB_MOD_FINI): Unregister normal reader, unhook pager, clear
grub_fs_autoload_hook.
* normal/menu.c: Remove <grub/script.h>, add <grub/command.h>.
(grub_menu_execute_entry): Replace grub_script_execute with
grub_parser_execute, change parameter to grub_command_execute.
* normal/menu_text.c: Remove <grub/script.h>.
* normal/menu_entry.c: Remove <grub/script.h>, add <grub/command.h>
and <grub/parser.h>.
(run): Change editor_getline to use new parser interface. Change
parameter to grub_command_execute.
* kern/main.c: Remove <grub/rescue.h>, include <grub/command.h>,
<grub/reader.h> and <grub/parser.h>.
(grub_load_normal_mode): Execute normal command.
(grub_main): Call grub_register_core_commands,
grub_register_rescue_parser and grub_register_rescue_reader, use
grub_reader_loop to enter input loop.
* kern/parser.c (grub_parser_spli_cmdline): Change type of getline
parameter.
(grub_parser_class): New variable.
(grub_parser_execute): New function.
* loader/i386/multiboot.c: Remove <grub/rescue.h>.
* loader/multiboot2.c: Likewise.
* loader/sparc64/ieee1275/linux.c: Likewise.
* util/grub-emu.c (read_command_list): New dummy function.
* util/sparc64/ieee1275/grub-setup.c: New file.
* util/sparc64/ieee1275/grub-ofpathname.c: New file.
* util/sparc64/ieee1275/grub-mkimage.c: New file.
* util/sparc64/ieee1275/grub-install.in: New file.
* util/ieee1275/ofpath.c: New file.
* util/ieee1275/devicemap.c: New file.
* util/devicemap.c: New file.
* util/deviceiter.c: New file.
* kern/sparc64/ieee1275/init.c: New file.
* include/grub/util/ofpath.h: New file.
* include/grub/util/deviceiter.h: New file.
* util/grub-mkdevicemap.c: Include deviceiter.h.
Implement using grub_util_emit_devicemap_entry and
grub_util_iterate_devices.
* conf/i386-corebook.rmk: Build util/deviceiter.c and
util/devicemap.c into grub-mkdevicemap
* conf/i386-efi.rmk: Likewise.
* conf/i386-ieee1275.rmk: Likewise.
* conf/i386-pc.rmk: Likewise.
* conf/powerpc-ieee1275.rmk: Likewise.
* conf/sparc64-ieee1275.rmk: Add rules to build boot block
images and installation utilities. Build kernel as image
instead of as elf binary. Use common rules as much as possible.
* include/grub/types.h: Rename ULONG_MAX to GRUB_ULONG_MAX and
LONG_MAX to GRUB_LONG_MAX. Introduce GRUB_LONG_MIN. Update all
users of ULONG_MAX, LONG_MAX and LONG_MIN to use the new
definitions.
* util/hostdisk.c [__FreeBSD__ || __FreeBSD_kernel__]: Include
<sys/param.h> and <sys/sysctl.h>.
(open_device) [__FreeBSD__ || __FreeBSD_kernel_]: Use sysctlgetbyname()
to add 0x10 to `kern.geom.debugflags' if it's not already set, before
opening the device and reset them afterwards.
* util/grub.d/10_freebsd.in: Don't exit if /boot/devices.hints
doestn't exist. Check also for /boot/kernel/kernel.gz. Print
`freebsd_loadenv' only when devices.hints exist.
* util/hostdisk.c [__FreeBSD_kernel__]: Include sys/disk.h.
(grub_util_biosdisk_open) [__FreeBSD_kernel__]: Add support for
GNU/kFreeBSD. Check if a device is a character device. Use
DIOCGMEDIASIZE to get the size.
(convert_system_partition_to_system_disk) [__FreeBSD_kernel__]: Add
support for GNU/kFreeBSD.
(grub_util_biosdisk_get_grub_dev) [__FreeBSD_kernel__]: Check if OS_DEV
is a character device instead of a block device. Add support for
FreeBSD device names.
* util/getroot.c (find_root_device) [__FreeBSD_kernel__]: Check if ENT
is a character device instead of a block device.
* util/grub-probe.c (probe) [__FreeBSD_kernel__]: Check if DEVICE_NAME
is a character device instead of a block device.
* util/hostdisk.c [__FreeBSD__]: Include sys/disk.h.
(grub_util_biosdisk_open) [__FreeBSD__]: Add support for
FreeBSD. Check if a device is a character device. Use
DIOCGMEDIASIZE to get the size.
(convert_system_partition_to_system_disk) [__FreeBSD__]: Add
support for FreeBSD.
(grub_util_biosdisk_get_grub_dev) [__FreeBSD__]: Check if OS_DEV
is a character device instead of a block device. Add support for
FreeBSD device names.
* util/getroot.c (find_root_device) [__FreeBSD__]: Check if ENT is
a character device instead of a block device.
(grub_util_check_char_device): New function.
* util/grub-probe.c (probe) [__FreeBSD__]: Check if DEVICE_NAME is
a character device instead of a block device.
* include/grub/util/getroot.h (grub_util_check_char_device): New
prototype.
Support for mtime and further expandability of dir command
* include/grub/lib/datetime.h: moved to ...
* include/grub/datetime.h: ... moved here and added
declaration of grub_unixtime2datetime. All users updated
* include/grub/fs.h: new syntax for dir and mtime functionin
struct grub_fs
* include/grub/fshelp.h: new declarations of GRUB_FSHELP_TYPE_MASK
and GRUB_FSHELP_FLAGS_MASK
* commands/ls.c (grub_ls_list_files): Write mtime in long format
* fs/ext2.c (grub_ext2_dir): use new dir syntax and supply mtime
(grub_ext2_mtime): new function
* fs/hfsplus.c (grub_hfsplus_dir): use new dir syntax and supply mtime
(grub_hfsplus_mtime): new function
* fs/ufs.c (GRUB_UFS_ATTR_TYPE): new definition
(GRUB_UFS_ATTR_FILE): likewise
(GRUB_UFS_ATTR_LNK): likewise
(struct grub_ufs_sblock): new fields mtime
(grub_ufs_read_inode): new parameter to read inode to a separate buffer
all users updated
(grub_ufs_dir): mtime support
(grub_ufs_mtime): new function
* fs/affs.c (grub_affs_dir): use new dir syntax
* fs/afs.c (grub_afs_dir): likewise
* fs/cpio.c (grub_cpio_dir): likewise
* fs/fat.c (grub_fat_find_dir): likewise
* fs/hfs.c (grub_hfs_dir): likewise
* fs/iso9660.c (grub_iso9660_dir): likewise
* fs/jfs.c (grub_jfs_dir): likewise
* fs/minix.c (grub_minix_dir): likewise
* fs/ntfs.c (grub_ntfs_dir): likewise
* fs/reiserfs.c (grub_reiserfs_dir): likewise
* fs/sfs.c (grub_sfs_dir): likewise
* fs/xfs.c (grub_xfs_dir): likewise
* util/hostfs.c (grub_hostfs_dir): likewise
* lib/datetime.c: moved to ...
* normal/datetime.c: ... moved here
(grub_unixtime2datetime): new function
* kern/rescue.c (grub_rescue_print_files): use new dir syntax
* normal/completition.c (iterate_dir): use new dir syntax
* normal/misc.c (grub_normal_print_device_info): tell the
last modification time of a volume
* kern/fs.c (grub_fs_probe): updated dummy function to use new syntax
* conf/common.rmk: added lib/datetime.c to ls.mod
* conf/i386-coreboot.rmk (grub_emu_SOURCES): add normal/datetime.c
(normal_mod_SOURCES): likewise
(datetime_mod_SOURCES): Removed lib/datetime.c
* conf/i386-efi.rmk: likewise
* conf/i386-ieee1275.rmk: likewise
* conf/i386-pc.rmk: likewise
* conf/powerpc-ieee1275.rmk: likewise
* conf/sparc64-ieee1275.rmk: likewise
* conf/x86_64-efi.rmk: likewise
Make the format of Environment Block plain text. The boot loader
part is not tested well yet.
* util/grub-editenv.c (DEFAULT_ENVBLK_SIZE): New macro.
(buffer): Removed.
(envblk): Likewise.
(usage): Remove "info" and "clear". Add "unset". Update the
description of "set", as this does not delete variables any
longer.
(create_envblk_file): Complete rewrite.
(open_envblk_file): Likewise.
(cmd_info): Removed.
(cmd_list): Likewise.
(cmd_set): Likewise.
(cmd_clear): Likewise.
(list_variables): New function.
(write_envblk): Likewise.
(set_variables): Likewise.
(unset_variables): Likewise.
(main): Complete rewrite.
* commands/loadenv.c (buffer): Removed.
(envblk): Likewise.
(open_envblk_file): New function.
(read_envblk_file): Complete rewrite.
(grub_cmd_load_env): Likewise.
(grub_cmd_list_env): Likewise.
(struct blocklist): New struct.
(free_blocklists): New function.
(check_blocklists): Likewise.
(write_blocklists): Likewise.
(grub_cmd_save_env): Complete rewrite.
* include/grub/lib/envblk.h (GRUB_ENVBLK_SIGNATURE): Replaced with
a plain text signature.
(GRUB_ENVBLK_MAXLEN): Removed.
(struct grub_envblk): Complete rewrite.
(grub_envblk_find): Removed.
(grub_envblk_insert): Likewise.
(grub_envblk_open): New prototype.
(grub_envblk_set): Likewise.
(grub_envblk_delete): Put const to VALUE.
(grub_envblk_iterate): Put const to NAME and VALUE.
(grub_envblk_close): New prototype.
(grub_envblk_buffer): New inline function.
(grub_envblk_size): Likewise.
* lib/envblk.c: Include grub/mm.h.
(grub_env_find): Removed.
(grub_envblk_open): New function.
(grub_envblk_close): Likewise.
(escaped_value_len): Likewise.
(find_next_line): Likewise.
(grub_envblk_insert): Removed.
(grub_envblk_set): New function.
(grub_envblk_delete): Complete rewrite.
(grub_envblk_iterate): Likewise.
* util/hostdisk.c (read_device_map): Use grub_util_get_disk_size
instead of stat in mingw environment.
* util/misc.c (grub_millisleep): Use Sleep in mingw environment.
* aclocal.m4 (grub_CHECK_LINK_DIR): New function.
* configure.ac: Use grub_CHECK_LINK_DIR to determine whether to use
AC_CONFIG_LINKS.
* conf/i386-coreboot.rmk (sbin_SCRIPTS): Add `grub-install'.
(grub_install_SOURCES): New variable.
* util/i386/pc/grub-install.in: Add a few condition checks to make it
usable on coreboot.
* util/grub-fstest.c (grub_term_get_current_input): Change return type
to `grub_term_input_t'.
(grub_term_get_current_output): Change return type to
`grub_term_output_t'.
* term/i386/pc/vesafb.c (grub_vesafb_term): Change type to
`struct grub_term_output'. Remove `.checkkey' and `.getkey'
members. Update all users.
* util/console.c (grub_ncurses_term): Split in ...
(grub_ncurses_term_input): ... this, and ...
(grub_ncurses_term_output): ... this. Update all users.
Modularize at_keyboard.mod:
* conf/i386.rmk (pkglib_MODULES): Add `at_keyboard.mod'.
(at_keyboard_mod_SOURCES, at_keyboard_mod_CFLAGS)
(at_keyboard_mod_LDFLAGS): New variables.
Actual terminal split:
* include/grub/term.h (struct grub_term): Split in ...
(struct grub_term_input): ... this, and ...
(struct grub_term_output): ... this. Update all users.
(grub_term_set_current): Split in ...
(grub_term_set_current_input): ... this, and ...
(grub_term_set_current_output): ... this.
(grub_term_get_current): Split in ...
(grub_term_get_current_input): ... this, and ...
(grub_term_get_current_output): ... this.
(grub_term_register): Split in ...
(grub_term_register_input): ... this, and ...
(grub_term_register_output): ... this.
(grub_term_unregister): Split in ...
(grub_term_unregister_input): ... this, and ...
(grub_term_unregister_output): ... this.
(grub_term_iterate): Split in ...
(grub_term_iterate_input): ... this, and ...
(grub_term_iterate_output): ... this.
* kern/term.c (grub_term_list): Split in ...
(grub_term_list_input): ... this, and ...
(grub_term_list_output): ... this. Update all users.
(grub_cur_term): Split in ...
(grub_cur_term_input): ... this, and ...
(grub_cur_term_output): ... this. Update all users.
(grub_term_set_current): Split in ...
(grub_term_set_current_input): ... this, and ...
(grub_term_set_current_output): ... this.
(grub_term_get_current): Split in ...
(grub_term_get_current_input): ... this, and ...
(grub_term_get_current_output): ... this.
(grub_term_register): Split in ...
(grub_term_register_input): ... this, and ...
(grub_term_register_output): ... this.
(grub_term_unregister): Split in ...
(grub_term_unregister_input): ... this, and ...
(grub_term_unregister_output): ... this.
(grub_term_iterate): Split in ...
(grub_term_iterate_input): ... this, and ...
(grub_term_iterate_output): ... this.
* kern/misc.c (grub_abort): Split use of grub_term_get_current() into
a check for input and one for output (and only attempt to get keys
from user when input works).
* util/grub-probe.c (grub_term_get_current): Split in ...
(grub_term_get_current_input): ... this, and ...
(grub_term_get_current_output): ... this.
* util/grub-fstest.c: Likewise.
* util/i386/pc/grub-setup.c: Likewise.
* util/grub-editenv.c: Likewise.
Portability adjustments:
* conf/i386-ieee1275.rmk (kernel_elf_SOURCES): Remove
`term/i386/pc/at_keyboard.c'.
* kern/ieee1275/init.c [__i386__] (grub_machine_init): Remove call to
grub_keyboard_controller_init() (now handled by terminal .init).
* kern/i386/coreboot/init.c (grub_machine_init): Add call to
grub_at_keyboard_init().
* include/grub/i386/ieee1275/console.h (grub_keyboard_controller_init)
(grub_console_checkkey, grub_console_getkey): Remove (now provided by
at_keyboard.mod via input terminal interface).
* include/grub/i386/coreboot/console.h: Convert into a stub for
`<grub/i386/pc/console.h>'.
Migrate full terminals to new API:
* term/efi/console.c (grub_console_term): Split into ...
(grub_console_term_input): ... this, and ...
(grub_console_term_output): ... this. Update all users.
* term/ieee1275/ofconsole.c: Remove __i386__ hack.
(grub_ofconsole_init): Split into ...
(grub_ofconsole_init_input): ... this, and ...
(grub_ofconsole_init_output): ... this.
(grub_ofconsole_term): Split into ...
(grub_ofconsole_term_input): ... this, and ...
(grub_ofconsole_term_output): ... this. Update all users.
* term/i386/pc/serial.c (grub_serial_term): Split into ...
(grub_serial_term_input): ... this, and ...
(grub_serial_term_output): ... this. Update all users.
* term/i386/pc/console.c (grub_console_term): Split into ...
(grub_console_term_input): ... this, and ...
(grub_console_term_output): ... this. Update all users.
(grub_console_term_input): Only enable it on PC/BIOS platform.
(grub_console_init): Remove grub_keyboard_controller_init() call.
Migrate input terminals to new API:
* term/i386/pc/at_keyboard.c: Replace `cpu' and `machine' with
`i386' and `i386/pc' to enable build on x86_64 (this driver is
i386-specific anyway).
(grub_console_checkkey): Rename to ...
(grub_at_keyboard_checkkey): ... this. Static-ize. Update all
users.
(grub_keyboard_controller_orig): New variable.
(grub_console_getkey): Rename to ...
(grub_at_keyboard_getkey): ... this. Static-ize. Update all
users.
(grub_keyboard_controller_init): Static-ize. Save original
controller value so that it can be restored ...
(grub_keyboard_controller_fini): ... here (new function).
(grub_at_keyboard_term): New structure.
(GRUB_MOD_INIT(at_keyboard), GRUB_MOD_FINI(at_keyboard)): New
functions.
Migrate output terminals to new API:
* term/i386/pc/vga.c (grub_vga_term): Change type to
`struct grub_term_output'. Remove `.checkkey' and `.getkey'
members. Update all users.
* term/gfxterm.c (grub_video_term): Change type to
`struct grub_term_output'. Remove `.checkkey' and `.getkey'
members. Update all users.
* include/grub/i386/pc/console.h (grub_console_checkkey)
(grub_console_getkey): Do not export (no longer needed by gfxterm,
etc).
Migrate `terminal' command and userland tools to new API:
* commands/terminal.c (grub_cmd_terminal): Split into ...
(grub_cmd_terminal_input): ... this, and ...
(grub_cmd_terminal_output): ... this.
(GRUB_MOD_INIT(terminal)): Split `terminal' command in two commands:
`terminal_input' and `terminal_output'.
* util/grub.d/00_header.in: Adjust `terminal' calls to new
`terminal_input' / `terminal_output' API.
* util/grub-mkconfig.in: Export ${GRUB_TERMINAL_INPUT} and
${GRUB_TERMINAL_OUTPUT} instead of ${GRUB_TERMINAL} (and if user
provided ${GRUB_TERMINAL}, convert it).
* util/update-grub_lib.in: Copy to ...
* util/grub-mkconfig_lib.in: ... this. Update all users.
* util/update-grub_lib.in: Make it a stub to `grub-mkconfigig_lib.in'.
* util/update-grub.in: Rename to ...
* util/grub-mkconfig.in: ... this. Update all users. Remove `-y'
option. Add `--output' option to allow users to specify the generated
configuration file. Default to stdout.
(update_grub_dir): Rename to ...
(grub_mkconfig_dir): ... this.
(grub_cfg): Default to an empty string.
* conf/common.rmk (update-grub): Rename to ...
(grub-mkconfig): ... this.
(update-grub_lib): Copy to ...
(grub-mkconfig_lib): ... this.
(update-grub_SCRIPTS): Copy to ...
(grub-mkconfig_SCRIPTS): ... this. Update all users.
(update-grub_DATA): Rename to ...
(grub-mkconfig_DATA): ... this.
* util/hostdisk.c (open_device): Replace a grub_util_info() call
with grub_dprintf("hostdisk", ...), as it was so verbose that it
clobbered useful information.
* util/getroot.c: Include <config.h>.
(grub_util_get_grub_dev): Rewrite to use asprintf for mdraid devices,
add support for /dev/md/N devices and handle LVM double dash escaping.
* configure.ac: Change host_os to cygwin for mingw.
(asprintf): New check for function.
* include/grub/symbol.h: Replace #ifndef __CYGWIN__ with
#if ! defined (__CYGWIN__) && ! defined (__MINGW32__).
* include/grub/util/misc.h: #include <config.h> and <grub/types.h>,
declear asprintf if HAVE_ASPRINTF is not set, declear fseeko, ftello,
sync, sleep and grub_util_get_disk_size for mingw.
* util/biosdisk.c (grub_util_biosdisk_open): Use grub_util_get_disk_size
to get size in mingw.
(open_device): Use flag O_BINARY if it's defined.
(find_root_device): Add dummy code for mingw.
* util/grub-mkdevicemap.c (get_floppy_disk_name): Return 0 for mingw.
(get_ide_disk_name): Return //./PHYSICALDRIVE%d for mingw.
(get_scsi_disk_name): Return 0 for mingw.
* util/hostfs.c: #include <grub/util/misc.h>.
(grub_hostfs_open): Use "rb" flag to open file, use
grub_util_get_disk_size to get disk size for mingw.
* util/misc.c: #include <windows.h> and <winioctl.h> in mingw.
(asprintf): New function if HAVE_ASPRINTF is not set.
(sync): New function for mingw.
(sleep): Likewise.
(grub_util_get_disk_size): Likewise.
Change find_grub_drive() syntax so it doesn't prevent it from
detecting NULL names as errors.
* util/biosdisk.c (find_grub_drive): Move free slot search code
from here ...
(find_free_slot): ... to here.
(read_device_map): Use find_free_slot() to search for free slots.
* conf/common.rmk (grub_probe_SOURCES): Add disk/mdraid_linux.c.
(grub_fstest_SOURCES): Add disk/raid5_recover.c, disk/raid6_recover.c,
disk/mdraid_linux.c and disk/dmraid_nvidia.c and lib/crc.c.
(pkglib_MODULES): Add raid5rec.mod, raid6rec.mod, mdraid.mod and
dm_nv.mod.
(raid5rec_mod_SOURCES): New macro.
(raid5rec_mod_CFLAGS): Likewise.
(raid5rec_mod_LDFLAGS): Likewise.
(raid6rec_mod_SOURCES): Likewise.
(raid6rec_mod_CFLAGS): Likewise.
(raid6rec_mod_LDFLAGS): Likewise.
(mdraid_mod_SOURCES): Likewise.
(mdraid_mod_CFLAGS): Likewise.
(mdraid_mod_LDFLAGS): Likewise.
(dm_nv_mod_SOURCES): Likewise.
(dm_nv_mod_CFLAGS): Likewise.
(dm_nv_mod_LDFLAGS): Likewise.
* conf/i386-pc.rmk (grub_setup_SOURCES): Add disk/mdraid_linux.c.
(grub_emu_SOURCES): Add disk/raid5_recover.c, disk/raid6_recover.c,
disk/mdraid_linux.c and disk/dmraid_nvidia.c.
* conf/i386-coreboot.rmk (grub_emu_SOURCES): Add disk/raid5_recover.c,
disk/raid6_recover.c, disk/mdraid_linux.c and disk/dmraid_nvidia.c.
* conf/i386-efi.rmk (grub_emu_SOURCES): Likewise.
* conf/x86_64-efi.rmk (grub_emu_SOURCES): Likewise.
* conf/i386-ieee1275.rmk (grub_emu_SOURCES): Likewise.
* conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Likewise.
* disk/raid5_recover.c: New file.
* disk/raid6_recover.c: Likewise.
* disk/mdraid_linux.c: Likewise.
* disk/dmraid_nvidia.c: Likewise.
* disk/i386/pc/biosdisk.c: Set total_sectors of cdrom device to
ULONG_MAX.
* disk/raid.c (grub_raid_open): Use the size of the smallest disk to
calculate the size of raid device.
(grub_raid_read): Simplify raid0 code. Support raid4, raid6 and four
different layout of raid5.
(grub_raid_scan_device): Remove code specific to mdraid.
(grub_raid_list): New variable.
(free_array): New function.
(grub_raid_register): Likewise.
(grub_raid_unregister): Likewise.
(grub_raid_rescan): Likewise.
(GRUB_MOD_INIT): Don't iterate device here.
(GRUB_MOD_FINI): Use free_array to release resource.
* include/grub/raid.h: Remove macro and structure specific to mdraid.
(grub_raid5_recover_func_t): New function variable type.
(grub_raid6_recover_func_t): Likewise.
(grub_raid5_recover_func): New variable.
(grub_raid6_recover_func): Likewise.
(grub_raid_register): New function.
(grub_raid_unregister): Likewise.
(grub_raid_rescan): Likewise.
(grub_raid_block_xor): Likewise.
* util/grub-fstest.c: Add #include <grub/raid.h> and <grub/lib/crc.h>.
(CMD_CRC): New macro.
(part): Removed.
(read_file): Handle device as well as file.
(cmd_crc): New function.
(fstest): Handle multiple disks.
(options): Remove part, raw and long, add root and diskcount.
(usage): Add crc, remove -p, -r, -l, add -r and -c.
(main): Find the first non option entry and ignore subsequence options,
add handling for the new options, support multiple disks.
* util/grub-probe.c (probe): Add mdraid to abstraction_name.
* include/grub/err.h (grub_err_printf): New function prototype.
* util/misc.c (grub_err_printf): New function.
* kern/misc.c [! GRUB_UTIL] (grub_err_printf): New alias for
grub_printf.
* kern/err.c (grub_print_error): Use grub_err_printf.
* kern/disk.c: Replace `<grub/machine/time.h>' with `<grub/time.h>'.
(grub_last_time): Change type to grub_uint64_t.
(grub_disk_open): Migrate code from to using grub_get_time_ms().
(grub_disk_close): Likewise.
* normal/menu.c: Replace `<grub/machine/time.h>' with `<grub/time.h>'.
(run_menu): Migrate code from to using grub_get_time_ms().
* util/misc.c (grub_get_time_ms): New function.
* util/console.c (grub_console_cur_color): New variable.
(grub_console_standard_color): Likewise.
(grub_console_normal_color): Likewise.
(grub_console_highlight_color): Likewise.
(color_map): Likewise.
(use_color): Likewise.
(NUM_COLORS): New macro.
(grub_ncurses_setcolorstate): Handle color properly.
(grub_ncurses_setcolor): Don't change color here, just remember the
settings, color will be set in grub_ncurses_setcolorstate.
(grub_ncurses_getcolor): New function.
(grub_ncurses_init): Initialize color pairs.
(grub_ncurses_term): New member grub_ncurses_getcolor.
* util/grub.d/00_header.in: Be platform-agnostic. Probe for existence
of modules instead of assuming which platform provides what.
* util/update-grub.in: Likewise.
* disk/memdisk.c (memdisk_size): Don't initialize.
(GRUB_MOD_INIT(memdisk)): Find memdisk using grub_module_iterate().
* include/grub/i386/pc/kernel.h
(GRUB_KERNEL_MACHINE_MEMDISK_IMAGE_SIZE): Remove macro.
(GRUB_KERNEL_MACHINE_PREFIX, GRUB_KERNEL_MACHINE_DATA_END): Shift.
(grub_memdisk_image_size, grub_arch_memdisk_addr)
(grub_arch_memdisk_size): Remove.
* include/grub/kernel.h (struct grub_module_header): Remove `offset'
field (was only used to transfer a constant). Add `type' field to
support multiple module types.
(grub_module_iterate): New function.
* kern/device.c (grub_device_open): Do not hide error messages
when grub_disk_open() fails. Use grub_print_error() instead.
* kern/i386/pc/init.c (grub_arch_modules_addr)
(grub_arch_memdisk_size): Remove functions.
(grub_arch_modules_addr): Return the module address in high memory
(now that it isn't copied anymore).
* kern/i386/pc/startup.S (grub_memdisk_image_size): Remove variable.
(codestart): Don't add grub_memdisk_image_size to %ecx in LZMA
decompression routine (grub_total_module_size already includes that
now). Don't copy modules back to low memory.
* kern/main.c: Include `<grub/mm.h>'.
(grub_load_modules): Split out (and use) ...
(grub_module_iterate): ... this function, which iterates through
module objects and runs a hook.
Comment out grub_mm_init_region() call, as it would cause non-ELF
modules to be overwritten.
* util/i386/pc/grub-mkimage.c (generate_image): Instead of appending
the memdisk image in its own region, make it part of the module list.
* util/elf/grub-mkimage.c (options): Add "memdisk"|'m' option.
(main): Parse --memdisk|-m option, and pass user-provided path as
parameter to generate_image().
(add_segments): Pass `memdisk_path' down to load_modules().
(load_modules): Embed memdisk image in module section when requested.
* util/i386/efi/grub-mkimage.c (make_mods_section): Initialize
`header.type' instead of `header.offset'.
* conf/powerpc-ieee1275.rmk (pkglib_MODULES): Add `memdisk.mod'.
(memdisk_mod_SOURCES, memdisk_mod_CFLAGS)
(memdisk_mod_LDFLAGS): New variables.
* conf/i386-coreboot.rmk: Likewise.
* conf/i386-ieee1275.rmk: Likewise.
* include/grub/i386/pc/kernel.h (GRUB_KERNEL_MACHINE_DATA_END):
Increase from 0x50 to 0x60.
* util/i386/pc/grub-install.in: Detect cross-disk installs, and
use UUIDs to identify the root drive for them. If that's not
possible, abort.
* util/i386/pc/grub-setup.c (setup): Do not special-case, or even
check, for cross-disk installs.
* kern/ieee1275/init.c (grub_machine_set_prefix): If `grub_prefix'
is non-empty, use it to set the `prefix' environment variable instead
of the usual approach.
* kern/i386/linuxbios/init.c (make_install_device): Remove function.
(grub_machine_set_prefix): Use `grub_prefix' to set the `prefix'
environment variable instead of dummy make_install_device().
* kern/i386/ieee1275/startup.S: Include `<grub/machine/kernel.h>'.
(start): Insert a data section, with `grub_prefix' variable.
* kern/i386/linuxbios/startup.S: Likewise.
* include/grub/powerpc/ieee1275/kernel.h [!ASM_FILE] (grub_prefix):
New variable reference.
* include/grub/i386/ieee1275/kernel.h (GRUB_KERNEL_MACHINE_PREFIX):
New macro. Defines offset of `grub_prefix' within startup.S (relative
to `start').
(GRUB_KERNEL_MACHINE_DATA_END): New macro. Defines the end of data
section within startup.S (relative to `start').
* include/grub/i386/coreboot/kernel.h: Likewise.
* util/elf/grub-mkimage.c (add_segments): Receive `prefix' parameter.
Overwrite grub_prefix with its contents, at the beginning of the
first segment.
(main): Understand -p|--prefix.
