Support multiple fallback entries, and provide an API to support
executing default+fallback menu entries. Renamed the `terminal' menu
viewer to `text'.
* include/grub/normal.h (grub_normal_text_menu_viewer): New global
variable declaration.
(grub_menu_execute_callback): New structure declaration.
(grub_menu_execute_callback_t): New typedef.
(grub_menu_execute_with_fallback): New function declaration.
(grub_menu_get_entry): Likewise.
(grub_menu_get_timeout): Likewise.
(grub_menu_set_timeout): Likewise.
* normal/main.c (GRUB_MOD_INIT(normal)): Refer to new variable name.
* normal/menu.c (grub_wait_after_message): Moved to
`normal/menu_text.c'.
(draw_border): Likewise.
(print_message): Likewise.
(print_entry): Likewise.
(print_entries): Likewise.
(grub_menu_init_page): Likewise.
(get_entry_number): Likewise.
(print_timeout): Likewise.
(run_menu): Likewise.
(grub_menu_execute_entry): Likewise.
(show_text_menu): Likewise.
(get_and_remove_first_entry_number): New function.
(grub_menu_execute_with_fallback): Likewise.
(get_entry): Renamed to ...
(grub_menu_get_entry): .. this and made it global.
(get_timeout): Renamed to ...
(grub_menu_get_timeout): ... this and made it global.
(set_timeout): Renamed to ...
(grub_menu_set_timeout): ... this and made it global.
(grub_normal_terminal_menu_viewer): Renamed to ...
(grub_normal_text_menu_viewer): ... this.
* normal/menu_text.c: New file. Extracted text-menu-specific code
from normal/menu.c.
* conf/i386-coreboot.rmk (grub_emu_SOURCES): Add `normal/menu_text.c'.
(normal_mod_SOURCES): Likewise.
* conf/i386-efi.rmk (grub_emu_SOURCES): Likewise.
(normal_mod_SOURCES): Likewise.
* conf/i386-ieee1275.rmk (grub_emu_SOURCES): Likewise.
(normal_mod_SOURCES): Likewise.
* conf/i386-pc.rmk, (grub_emu_SOURCES): Likewise.
(normal_mod_SOURCES): Likewise.
* conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Likewise.
(normal_mod_SOURCES): Likewise.
* conf/sparc64-ieee1275.rmk (grub_emu_SOURCES): Likewise.
(normal_mod_SOURCES): Likewise.
* conf/x86_64-efi.rmk (grub_emu_SOURCES): Likewise.
(normal_mod_SOURCES): Likewise.
* normal/main.c: Add include to grub/menu_viewer.h.
(free_menu_entry_classes): Added.
(grub_normal_menu_addentry): Added class property handling.
(grub_normal_execute): Changed to use new menu viewer for menu viewing.
(GRUB_MOD_INIT(normal)): Added register for text based menu viewer.
* normal/menu_viewer.c: New file.
* normal/menu.c (run_menu_entry): Renamed to ...
(grub_menu_execute_entry): ... this and made it as global.
(grub_menu_run): Renamed to ...
(show_text_menu): ... this and made it local.
(show_text_menu): Adapt to new function names.
(grub_normal_terminal_menu_viewer): New global variable.
* include/grub/menu.h: New file.
* include/grub/menu_viewer.h: New file.
* include/grub/normal.h: Added include to grub/menu.h.
(grub_menu_entry): Moved to include/grub/menu.h.
(grub_menu_entry_t): Likewise.
(grub_menu): Likewise.
(grub_menu_t): Likewise.
(grub_normal_terminal_menu_viewer): Added.
(grub_menu_execute_entry): Likewise.
(grub_menu_run): Removed.
* DISTLIST: Added include/grub/menu.h.
Added include/grub/menu_viewer.h.
Added normal/menu_viewer.c.
2009-01-31 Vesa Jääskeläinen <chaac@nic.fi>
* normal/execute.c (grub_script_execute_menuentry): Changed to use
arglist for menutitle arguments.
* normal/main.c (grub_normal_menu_addentry): Likewise.
* normal/parser.y (menuentry): Likewise.
* normal/script.c (grub_script_create_cmdmenu): Likewise.
* include/grub/script.h (grub_script_cmd_menuentry): Likewise.
(grub_script_create_cmdmenu): Likewise.
* include/grub/normal.h (grub_normal_menu_addentry): Likewise.
* conf/i386-pc.rmk (normal_mod_SOURCES): Adapt Colin D Bennett's
changes.
* conf/x86_64-efi.rmk (normal_mod_SOURCES): Likewise.
* conf/i386-coreboot.rmk (normal_mod_SOURCES): Likewise.
* conf/i386-efi.rmk (normal_mod_SOURCES): Likewise.
* conf/i386-ieee1275.rmk (normal_mod_SOURCES): Likewise.
* conf/powerpc-ieee1275.rmk (normal_mod_SOURCES): Likewise.
* conf/sparc64-ieee1275.rmk (normal_mod_SOURCES): Likewise.
* 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.
* include/grub/script.h: Don't include grub_script.tab.h. It's
a generated file, which may only be included from the files with
DEPENDENCIES rules in the makefile. Don't use typedef YYSTYPE,
use union YYSTYPE, as the later allows forward declaration.
* normal/lexer.c: Don't use typedef YYSTYPE, use union YYSTYPE.
* 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.
* include/grub/normal.h (grub_env_write_color_normal): New prototype.
(grub_env_write_color_highlight): Likewise.
(grub_wait_after_message): Likewise.
* normal/color.c: New file.
* conf/i386-pc.rmk (grub_emu_SOURCES): Add `normal/color.c'.
(normal_mod_DEPENDENCIES): Likewise.
* conf/i386-efi.rmk (grub_emu_SOURCES): Add `normal/color.c'.
(normal_mod_DEPENDENCIES): Likewise.
* conf/i386-linuxbios.rmk (grub_emu_SOURCES): Add `normal/color.c'.
(normal_mod_DEPENDENCIES): Likewise.
* conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Add `normal/color.c'.
(normal_mod_DEPENDENCIES): Likewise.
* normal/menu_entry.c (run): Rely on grub_wait_after_message()
for waiting after a message is printed.
* normal/main.c (read_config_file): Likewise.
(grub_normal_init): Register grub_env_write_color_normal() and
grub_env_write_color_highlight() hooks. Mark `color_normal' and
`color_highlight' variables as global.
* normal/menu.c (grub_wait_after_message): New function.
(grub_color_menu_normal): New variable. Replaces ...
(GRUB_COLOR_MENU_NORMAL): ... this macro.
(grub_color_menu_highlight): New variable. Replaces ...
(GRUB_COLOR_MENU_HIGHLIGHT): ... this macro.
(draw_border): Set color state to `GRUB_TERM_COLOR_NORMAL' instead of
`GRUB_TERM_COLOR_STANDARD'.
(print_message): Use `grub_setcolorstate' to reload colors. Rename
`normal_code' and `highlight_code' to `old_color_normal' and
`old_color_highlight', respectively.
(grub_menu_init_page): Update colors when drawing the menu, based on
`menu_color_normal' and `menu_color_highlight' variables.
(grub_menu_run): Rely on grub_wait_after_message() for waiting after
a message is printed.
* include/grub/term.h (struct grub_term): Add `getcolor' function.
(grub_getcolor): New function.
* kern/term.c (grub_getcolor): New function.
* normal/menu.c (GRUB_COLOR_MENU_NORMAL): New macro.
(GRUB_COLOR_MENU_HIGHLIGHT): New macro.
(print_entry): Set normal and highlight colors to
`GRUB_COLOR_MENU_NORMAL' and `GRUB_COLOR_MENU_HIGHLIGHT',
respectively, before printing and restore them to old
values afterwards.
(grub_menu_init_page): Likewise. Fill an additional colored space
that would otherwise be left blank.
* term/efi/console.c (grub_console_getcolor): New function.
(struct grub_console_term.getcolor): New variable.
* term/i386/pc/console.c (grub_console_getcolor): New function.
(struct grub_console_term.getcolor): New variable.
* term/ieee1275/ofconsole.c (grub_ofconsole_getcolor): New function.
(struct grub_console_term.getcolor): New variable.
* term/i386/pc/serial.c (grub_serial_setcolor): Remove function.
(struct grub_console_term.setcolor): Remove variable.
* term/i386/pc/vesafb.c (grub_virtual_screen_setcolor): Remove function.
(struct grub_console_term.setcolor): Remove variable.
* term/i386/pc/vga.c (grub_vga_setcolor): Remove function.
(struct grub_console_term.setcolor): Remove variable.
* term/gfxterm.c (grub_virtual_screen_setcolor): Remove function.
(struct grub_console_term.setcolor): Remove variable.
* normal/misc.c (grub_normal_print_device_info): Do not probe for
filesystem when dev->disk is unset.
Do probe for filesystem even when dev->disk->has_partitions is set.
In case a filesystem is found, always report it.
In case it isn't, if dev->disk->has_partitions is set, report that
a partition table was found instead of reporting that no filesystem
could be identified.
* normal/command.c (grub_command_execute): Use NULL rather than 0 for
"pager" assignment.
* util/biosdisk.c (grub_util_biosdisk_get_grub_dev): Likewise for
"pcdata".
* util/grub-probe.c (probe): Likewise for "drive_name".
* include/grub/err.h (grub_err_t): Add `GRUB_ERR_MENU'.
* kern/env.c (grub_env_unset): Don't free the member `value' when
the type is GRUB_ENV_VAR_DATA, in this case it's a user defined
pointer.
* normal/main.c (current_menu): Removed.
(free_menu): Unset the `menu' environment variable.
(grub_normal_menu_addentry): Make use of the environment variable
`menu', instead of using the global `current_menu'. Allocate
memory for the sourcecode of this entry.
(read_config_file): New argument `nested', changed all callers.
Only in the case of a new context, initialize a new menu. Set the
`menu' environment variable.
(grub_normal_execute): Don't set and unset the environment
variable `menu' here anymore. Only free the menu when leaving the
context.
* util/i386/pc/biosdisk.c (linux_find_partition): Fixed a memory
leak.
Clean up the code to support 64-bit addressing in disks and
files. This change is not enough for filesystems yet.
* util/i386/pc/grub-setup.c (struct boot_blocklist): Change the
type of "start" to grub_uint64_t.
(setup): Change the types of KERNEL_SECTOR and FIRST_SECTOR to
grub_disk_addr_t * and grub_disk_addr_t. Fix the format string in
save_first_sector and save_blocklists. Use grub_le_to_cpu64 to
convert addresses.
* util/i386/pc/biosdisk.c (open_device): Change the type of SECTOR
to grub_disk_addr_t.
* partmap/gpt.c (gpt_partition_map_iterate): Fix the format
string.
* partmap/pc.c (pc_partition_map_iterate): Likewise.
* partmap/amiga.c (amiga_partition_map_iterate): Cast RDSK.MAGIC
to char *.
* normal/script.c (grub_script_parse): Remove unused MEMFREE.
* normal/parser.y (YYLTYPE_IS_TRIVIAL): New macro.
* normal/lexer.c (grub_script_yyerror): Specify unused to LEX.
* loader/i386/pc/multiboot.c (grub_multiboot_load_elf64): Cast -1
to grub_off_t, to detect an error from grub_file_seek.
(grub_multiboot_load_elf32): Likewise.
* kern/misc.c (grub_strtoul): Use grub_strtoull. Return the
maximum unsigned long value when an overflow is detected.
(grub_strtoull): New function.
(grub_divmod64): Likewise.
(grub_lltoa): use grub_divmod64.
* kern/fs.c (struct grub_fs_block): Change the type of "offset" to
grub_disk_addr_t.
(grub_fs_blocklist_open): Increase P if P is not NULL to advance
the pointer to next character. Use grub_strtoull instead of
grub_strtoul.
(grub_fs_blocklist_read): Change the types of SECTOR, OFFSET and
SIZE to grub_disk_addr_t, grub_off_t and grub_size_t,
respectively.
* kern/file.c (grub_file_read): Prevent an oveflow of LEN, as the
return value is signed.
(grub_file_seek): Change the type of OLD to grub_off_t. Do not
test if OFFSET is less than zero, as OFFSET is unsigned now.
* kern/disk.c (struct grub_disk_cache): Change the type of
"sector" to grub_disk_addr_t.
(grub_disk_cache_get_index): Change the type of SECTOR to
grub_disk_addr_t. Calculate the hash with SECTOR casted to
unsigned after shifting.
(grub_disk_cache_invalidate): Change the type of SECTOR to
grub_disk_addr_t.
(grub_disk_cache_unlock): Likewise.
(grub_disk_cache_store): Likewise.
(grub_disk_check_range): Change the types of SECTOR, OFFSET, SIZE,
START and LEN to grub_disk_addr_t *, grub_off_t *, grub_size_t,
grub_disk_addr_t and grub_uint64_t, respectively.
(grub_disk_read): Use an unsigned variable REAL_OFFSET for the
body, as the value of OFFSET is tweaked by
grub_disk_check_range. Change the types of START_SECTOR, LEN and
POS to grub_disk_addr_t, grub_size_t and grub_size_t,
respectively.
(grub_disk_write): Use an unsigned variable REAL_OFFSET for the
body, as the value of OFFSET is tweaked by
grub_disk_check_range. Change the types of LEN and N to
grub_size_t.
* io/gzio.c (struct grub_gzio): Change the types of "data_offset"
and "saved_offset" to grub_off_t.
(test_header): Cast BUF to char *.
(get_byte): Cast GZIO->DATA_OFFSET to grub_off_t. Cast GZIO->INBUF
to char *.
(grub_gzio_read): Change the types of OFFSET and SIZE to
grub_off_t and grub_size_t, respectively.
* include/grub/i386/pc/boot.h (GRUB_BOOT_MACHINE_FORCE_LBA):
Removed.
(GRUB_BOOT_MACHINE_BOOT_DRIVE): Changed to 0x4c.
(GRUB_BOOT_MACHINE_KERNEL_ADDRESS): Changed to 0x40.
(GRUB_BOOT_MACHINE_KERNEL_SEGMENT): Changed to 0x42.
(GRUB_BOOT_MACHINE_DRIVE_CHECK): Changed to 0x4e.
(GRUB_BOOT_MACHINE_LIST_SIZE): Increased to 12.
* include/grub/types.h (grub_off_t): Unconditionally set to
grub_uint64_t.
(grub_disk_addr_t): Changed to grub_uint64_t.
* include/grub/partition.h (struct grub_partition): Change the
types of "start", "len" and "offset" to grub_disk_addr_t,
grub_uint64_t and grub_disk_addr_t, respectively.
(grub_partition_get_start): Return grub_disk_addr_t.
(grub_partition_get_len): Return grub_uint64_t.
* include/grub/misc.h (grub_strtoull): New prototype.
(grub_divmod64): Likewise.
* include/grub/fshelp.h (grub_fshelp_read_file): Change the types
of SECTOR, LEN and FILESIZE to grub_disk_addr_t, grub_size_t and
grub_off_t, respectively.
All callers and references changed.
* include/grub/fs.h (struct grub_fs): Change the type of LEN to
grub_size_t in "read".
All callers and references changed.
* include/grub/file.h (struct grub_file): Change the types of
"offset" and "size" to grub_off_t and grub_off_t,
respectively. Change the type of SECTOR to grub_disk_addr_t in
"read_hook".
(grub_file_read): Change the type of LEN to grub_size_t.
(grub_file_seek): Return grub_off_t. Change the type of OFFSET to
grub_off_t.
(grub_file_size): Return grub_off_t.
(grub_file_tell): Likewise.
All callers and references changed.
* include/grub/disk.h (struct grub_disk_dev): Change the types of
SECTOR and SIZE to grub_disk_addr_t and grub_size_t in "read" and
"write".
(struct grub_disk): Change the type of "total_sectors" to
grub_uint64_t. Change the type of SECTOR to grub_disk_addr_t in
"read_hook".
(grub_disk_read): Change the types of SECTOR, OFFSET and SIZE to
grub_disk_addr_t, grub_off_t and grub_size_t, respectively.
(grub_disk_write): Likewise.
All callers and references changed.
* fs/iso9660.c (grub_iso9660_susp_iterate): Cast parameters to
char * for grub_strncmp to silence gcc.
(grub_iso9660_mount): Likewise.
(grub_iso9660_mount): Likewise.
(grub_iso9660_read_symlink): Likewise. Also, remove the nonsense
return statement.
(grub_iso9660_iterate_dir): Likewise.
(grub_iso9660_label): Cast DATA->VOLDESC.VOLNAME to char *.
* fs/hfs.c (grub_hfs_read_file): Change the types of SECTOR and
LEN to grub_disk_addr_t and grub_size_t, respectively.
* fs/hfsplus.c (grub_hfsplus_read_file): Likewise.
* fs/jfs.c (grub_jfs_read_file): Likewise.
* fs/minix.c (grub_jfs_read_file): Likewise.
* fs/sfs.c (grub_jfs_read_file): Likewise.
* fs/ufs.c (grub_jfs_read_file): Likewise.
* fs/xfs.c (grub_jfs_read_file): Likewise.
* fs/fat.c (grub_fat_read_data): Change the types of SECTOR, LEN
and SIZE to grub_disk_addr_t, grub_size_t and grub_size_t,
respectively.
* fs/ext2.c (grub_ext2_read_block): When an error happens, set
BLKNR to -1 instead of returning GRUB_ERRNO.
(grub_ext2_read_file): Change the types of SECTOR and
LEN to grub_disk_addr_t and grub_size_t, respectively.
* fs/affs.c (grub_affs_read_file): Change the types of SECTOR and
LEN to grub_disk_addr_t and grub_size_t, respectively.
* font/manager.c (grub_font_get_glyph): Cast BITMAP to char * for
grub_file_read.
* disk/ieee1275/ofdisk.c (grub_ofdisk_read): Fix the format
string. Do not cast SECTOR explicitly.
* disk/i386/pc/biosdisk.c (grub_biosdisk_open): Change the type of
TOTAL_SECTORS to grub_uint64_t. Do not mask DRP->TOTAL_SECTORS.
(grub_biosdisk_rw): Change the types of SECTOR and SIZE to
grub_disk_addr_t and grub_size_t, respectively. If the sector is
over 2TB and LBA mode is not supported, raise an error.
(get_safe_sectors): New function.
(grub_biosdisk_read): Use get_safe_sectors.
(grub_biosdisk_write): Likewise.
* disk/efi/efidisk.c (grub_efidisk_read): Fix the format string.
(grub_efidisk_write): Likewise.
* disk/loopback.c (delete_loopback): Cosmetic changes.
(grub_cmd_loopback): Likewise. Also, test NEWDEV->FILENAME
correctly.
(grub_loopback_open): Likewise.
(grub_loopback_read): Likewise. Also, change the type of POS to
grub_off_t, and fix the usage of grub_memset.
* commands/i386/pc/play.c: Include grub/machine/time.h.
* commands/ls.c (grub_ls_list_files): Use "llu" instead of "d" to
print FILE->SIZE.
* commands/configfile.c: Include grub/env.h.
* commands/cmp.c (grub_cmd_cmp): Do not use ERR, but use
GRUB_ERRNO directly instead. Change the type of POS to
grub_off_t. Follow the coding standard.
* commands/blocklist.c: Include grub/partition.h.
(grub_cmd_blocklist): Return an error if the underlying device is
not a disk. Take the starting sector of a partition into account,
if a partition is used.
* boot/i386/pc/diskboot.S (bootloop): Adapted to the new offset of
a length field.
(lba_mode): Support 64-bit addresses.
(chs_mode): Likewise.
(copy_buffer): Adapted to the new offsets of a length field and a
segment field.
(blocklist_default_start): Allocate 64-bit space.
* boot/i386/pc/boot.S (force_lba): Removed.
(boot_drive): Moved to under KERNEL_SECTOR.
(kernel_sector): Moved to under KENREL_SEGMENT. Allocate 64-bit
space.
(real_start): Set %si earlier. Remove code for FORCE_LBA, since it
is useless.
(lba_mode): Refactored to support a 64-bit address. More size
optimization.
(setup_sectors): Likewise.
* include/grub/script.h (grub_script_cmdif): Renamed field 'bool' to
'exec_to_evaluate'. Renamed field 'true' to 'exec_on_true'. Renamed
field 'false' to 'exec_on_false'.
(grub_script_create_cmdif): Renamed argument names to reflect above
changes.
* normal/execute.c (grub_script_execute_cmdif): Likewise.
* normal/script.c (grub_script_create_cmdif): Likewise.
* normal/lexer.c (grub_script_yylex): Don't filter out newlines.
* normal/parser.y (commandblock): Defined as <cmd>. A subroutine
for `menuentry'.
(script): Accept leading newlines.
(newlines): New rule to describe 0 or more newlines.
(commands): Accept `command' with trailing newline. Fixed the
order in which arguments were passed to `grub_script_add_cmd'.
Accept commands separated by newlines.
(function): Changed to accept newlines.
(menuentry) Rewritten.
* normal/script.c (grub_script_create_cmdmenu): Add new entries in
front of the list, instead of to the end.
Use the environment context in the menu. Remove the commands
"default" and "timeout", and use variables instead.
* normal/menu.c: Include grub/env.h.
(print_entry): Cast TITLE to silence gcc.
(get_timeout): New function.
(set_timeout): Likewise.
(get_entry_number): Likewise.
(run_menu): Use a default entry, a fallback entry and a timeout
in the environment variables "default", "fallback" and
"timeout". Also, tweak the default entry if it is not within the
current menu entries.
(grub_menu_run): Use a fallback entry in the environment variable
"fallback".
* normal/main.c (read_config_file): Do not initialize
NEWMENU->DEFAULT_ENTRY, NEWMENU->FALLBACK_ENTRY or
NEWMENU->TIMEOUT.
(grub_normal_execute): Use a data slot to store the menu.
* include/grub/normal.h (struct grub_menu): Removed default_entry,
fallback_entry and timeout.
(struct grub_menu_list): Removed.
(grub_menu_list_t): Likewise.
(struct grub_context): Likewise.
(grub_context_t): Likewise.
(grub_context_get): Likewise.
(grub_context_get_current_menu): Likewise.
(grub_context_push_menu): Likewise.
(grub_context_pop_menu): Likewise.
(grub_default_init): Likewise.
(grub_default_fini): Likewise.
(grub_timeout_init): Likewise.
(grub_timeout_fini): Likewise.
* conf/sparc64-ieee1275.rmk (pkgdata_MODULES): Removed default.mod
and timeout.mod.
(normal_mod_SOURCES): Removed normal/context.c.
* conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Removed
commands/default.c, commands/timeout.c and normal/context.c.
(normal_mod_SOURCES): Removed normal/context.c.
* conf/i386-pc.rmk (grub_emu_SOURCES): Removed commands/default.c,
commands/timeout.c and normal/context.c.
(normal_mod_SOURCES): Removed normal/context.c.
* conf/i386-efi.rmk (grub_emu_SOURCES): Removed
commands/default.c, commands/timeout.c and normal/context.c.
(normal_mod_SOURCES): Removed normal/context.c.
* conf/common.rmk (pkgdata_MODULES): Removed default.mod and
timeout.mod.
(default_mod_SOURCES): Removed.
(default_mod_CFLAGS): Likewise.
(default_mod_LDFLAGS): Likewise.
(timeout_mod_SOURCES): Removed.
(timeout_mod_CFLAGS): Likewise.
(timeout_mod_LDFLAGS): Likewise.
* DISTLIST: Removed commands/default.c, commands/timeout.c and
normal/context.c.
* commands/default.c: Removed.
* commands/timeout.c: Likewise.
* normal/context.c: Likewise.
* normal/execute.c (grub_script_execute_cmd): Change the return
type to `grub_err_t'. Correctly return the error.
(grub_script_execute_cmdline): In case a command line is not a
command or a function, try to interpret it as an assignment.
* commands/configfile.c (grub_cmd_configfile): Execute the
configfile within its own context.
* include/grub/env.h (grub_env_context_open): New prototype.
(grub_env_context_close): Likewise.
* kern/env.c (grub_env): Removed.
(grub_env_sorted): Likewise.
(grub_env_context): New variable.
(grub_env_var_context): Likewise.
(grub_env_find): Search both the active context and the global
context.
(grub_env_context_open): New function.
(grub_env_context_close): Likewise.
(grub_env_insert): Likewise.
(grub_env_remove): Likewise.
(grub_env_export): Likewise.
(grub_env_set): Changed to use helper functions to avoid code
duplication.
(grub_env_iterate): Rewritten so both the current context and the
global context are being used.
* normal/command.c (export_command): New function.
(grub_command_init): Register the `export' function.
