While in theory permitted by the spec, modules rarely fit in low memory
anyway and not every kernel is able to handle modules in low memory anyway.
At least VMWare is known not to be able to handle modules at arbitrary
locations.

	quirks.

	allocate space for zero-sized modules.

	video if no text is available.
Also-By: Vladimir Serbinenko <phcoder@gmail.com>

* grub-core/efiemu/mm.c (grub_efiemu_mmap_iterate): Add hook_data
argument, passed to hook.
* grub-core/kern/i386/coreboot/mmap.c
(grub_linuxbios_table_iterate): Likewise.
(grub_machine_mmap_iterate: iterate_linuxbios_table): Make static
instead of nested.
(grub_machine_mmap_iterate): Add hook_data argument.
* grub-core/kern/i386/multiboot_mmap.c (grub_machine_mmap_iterate):
Add hook_data argument, passed to hook.
* grub-core/kern/i386/pc/mmap.c (grub_machine_mmap_iterate):
Likewise.
* grub-core/kern/i386/qemu/mmap.c (grub_machine_mmap_iterate):
Likewise.
* grub-core/kern/ieee1275/mmap.c (grub_machine_mmap_iterate):
Likewise.
* grub-core/kern/mips/arc/init.c (grub_machine_mmap_iterate):
Likewise.
* grub-core/kern/mips/loongson/init.c (grub_machine_mmap_iterate):
Likewise.
* grub-core/kern/mips/qemu_mips/init.c (grub_machine_mmap_iterate):
Likewise.
* grub-core/mmap/efi/mmap.c (grub_efi_mmap_iterate): Likewise.
(grub_machine_mmap_iterate): Likewise.
* grub-core/mmap/mmap.c (grub_mmap_iterate): Likewise.
* include/grub/efiemu/efiemu.h (grub_efiemu_mmap_iterate): Update
prototype.
* include/grub/memory.h (grub_memory_hook_t): Add data argument.
Remove NESTED_FUNC_ATTR from here and from all users.
(grub_mmap_iterate): Update prototype.
(grub_efi_mmap_iterate): Update prototype.  Update all callers to
pass appropriate hook data.
(grub_machine_mmap_iterate): Likewise.

* grub-core/commands/acpi.c (grub_acpi_create_ebda: find_hook): Make
static instead of nested.
* grub-core/commands/lsmmap.c (grub_cmd_lsmmap: hook): Likewise.
Rename to ...
(lsmmap_hook): ... this.
* grub-core/efiemu/mm.c (grub_efiemu_mmap_init: bounds_hook):
Likewise.
(grub_efiemu_mmap_fill: fill_hook): Likewise.
* grub-core/kern/i386/coreboot/init.c (grub_machine_init:
heap_init): Likewise.
* grub-core/kern/i386/pc/init.c (grub_machine_init: hook): Likewise.
Rename to ...
(mmap_iterate_hook): ... this.
* grub-core/kern/ieee1275/init.c (grub_claim_heap: heap_init):
Likewise.
* grub-core/lib/ieee1275/relocator.c
(grub_relocator_firmware_get_max_events: count): Likewise.
(grub_relocator_firmware_fill_events: fill): Likewise.  Rename
to ...
(grub_relocator_firmware_fill_events_iter): ... this.
* grub-core/lib/relocator.c (grub_relocator_alloc_chunk_align:
hook): Likewise.  Rename to ...
(grub_relocator_alloc_chunk_align_iter): ... this.
* grub-core/loader/i386/bsd.c (generate_e820_mmap: hook): Likewise.
Rename to ...
(generate_e820_mmap_iter): ... this.
* grub-core/loader/i386/linux.c (find_mmap_size: hook): Likewise.
Rename to ...
(count_hook): ... this.
(grub_linux_boot: hook): Likewise.  Rename to ...
(grub_linux_boot_mmap_find): ... this.
(grub_linux_boot: hook_fill): Likewise.  Rename to ...
(grub_linux_boot_mmap_fill): ... this.
* grub-core/loader/i386/multiboot_mbi.c (grub_fill_multiboot_mmap:
hook): Likewise.  Rename to ...
(grub_fill_multiboot_mmap_iter): ... this.
* grub-core/loader/multiboot.c (grub_get_multiboot_mmap_count:
hook): Likewise.  Rename to ...
(count_hook): ... this.
* grub-core/loader/multiboot_mbi2.c (grub_fill_multiboot_mmap:
hook): Likewise.  Rename to ...
(grub_fill_multiboot_mmap_iter): ... this.
* grub-core/loader/powerpc/ieee1275/linux.c
(grub_linux_claimmap_iterate: alloc_mem): Likewise.
* grub-core/loader/sparc64/ieee1275/linux.c (alloc_phys: choose):
Likewise.  Rename to ...
(alloc_phys_choose): ... this.
(determine_phys_base: get_physbase): Likewise.
* grub-core/mmap/i386/mmap.c (grub_mmap_malign_and_register:
find_hook): Likewise.
* grub-core/mmap/i386/pc/mmap.c (preboot: fill_hook): Likewise.
(malloc_hook: count_hook): Likewise.
* grub-core/mmap/i386/uppermem.c (grub_mmap_get_lower: hook):
Likewise.  Rename to ...
(lower_hook): ... this.
(grub_mmap_get_upper: hook): Likewise.  Rename to ...
(upper_hook): ... this.
(grub_mmap_get_post64: hook): Likewise.  Rename to ...
(post64_hook): ... this.
* grub-core/mmap/mips/uppermem.c (grub_mmap_get_lower: hook):
Likewise.  Rename to ...
(lower_hook): ... this.
(grub_mmap_get_upper: hook): Likewise.  Rename to ...
(upper_hook): ... this.
* grub-core/mmap/mmap.c (grub_mmap_iterate: count_hook): Likewise.
(grub_mmap_iterate: fill_hook): Likewise.
(fill_mask): Pass addr and mask within a single struct.
(grub_cmd_badram: hook): Make static instead of nested.  Rename
to ...
(badram_iter): ... this.
(grub_cmd_cutmem: hook): Likewise.  Rename to ...
(cutmem_iter): ... this.

	checks which are always false on some platforms.
	(grub_cmd_lsacpi): Likewise.
	* grub-core/kern/misc.c (grub_strtoul): Likewise.
	* grub-core/loader/multiboot.c (grub_multiboot_set_video_mode):
	Likewise.

	on it.

	* grub-core/commands/acpi.c (grub_cmd_acpi): Don't override errors.
	* grub-core/font/font.c (open_section): Likewise.
	* grub-core/loader/i386/bsd.c (grub_bsd_load_aout): New argument
	filename. Don't override errors.
	(grub_cmd_openbsd_ramdisk): Don't override errors.
	* grub-core/loader/i386/linux.c (grub_cmd_linux): Likewise.
	(grub_cmd_initrd): Likewise.
	* grub-core/loader/i386/pc/linux.c (grub_cmd_linux): Likewise.
	(grub_cmd_initrd): Likewise.
	* grub-core/loader/ia64/efi/linux.c (grub_load_elf64): Likewise.
	(grub_cmd_linux): Likewise.
	(grub_cmd_initrd): Likewise.
	(grub_cmd_payload): Likewise.
	* grub-core/loader/mips/linux.c (grub_cmd_initrd): Likewise.
	* grub-core/loader/multiboot.c (grub_cmd_multiboot): Likewise.
	(grub_cmd_module): Likewise.
	* grub-core/loader/powerpc/ieee1275/linux.c (grub_cmd_initrd): Likewise.
	* grub-core/loader/sparc64/ieee1275/linux.c (grub_cmd_initrd): Likewise.
	* grub-core/loader/xnu.c (grub_xnu_load_driver): Likewise.
	(grub_cmd_xnu_mkext): Likewise.
	(grub_cmd_xnu_ramdisk): Likewise.
	(grub_xnu_check_os_bundle_required): Likewise.
	(grub_xnu_load_kext_from_dir): Likewise.
	(grub_cmd_xnu_kextdir): Likewise.
	* grub-core/loader/xnu_resume.c (grub_xnu_resume): Likewise.

	* grub-core/commands/cacheinfo.c: Likewise.
	* grub-core/commands/cmp.c: Likewise.
	* grub-core/commands/efi/loadbios.c: Likewise.
	* grub-core/commands/gptsync.c: Likewise.
	* grub-core/commands/ieee1275/suspend.c: Likewise.
	* grub-core/commands/legacycfg.c: Likewise.
	* grub-core/commands/memrw.c: Likewise.
	* grub-core/commands/minicmd.c: Likewise.
	* grub-core/commands/parttool.c: Likewise.
	* grub-core/commands/time.c: Likewise.
	* grub-core/commands/videoinfo.c: Likewise.
	* grub-core/disk/geli.c: Likewise.
	* grub-core/disk/i386/pc/biosdisk.c: Likewise.
	* grub-core/disk/luks.c: Likewise.
	* grub-core/disk/lvm.c: Likewise.
	* grub-core/font/font_cmd.c: Likewise.
	* grub-core/fs/zfs/zfscrypt.c: Likewise.
	* grub-core/fs/zfs/zfsinfo.c: Likewise.
	* grub-core/gfxmenu/view.c: Likewise.
	* grub-core/kern/emu/hostdisk.c: Likewise.
	* grub-core/kern/emu/main.c: Likewise.
	* grub-core/kern/emu/misc.c: Likewise.
	* grub-core/kern/emu/mm.c: Likewise.
	* grub-core/kern/mips/arc/init.c: Likewise.
	* grub-core/kern/mips/loongson/init.c: Likewise.
	* grub-core/kern/partition.c: Likewise.
	* grub-core/lib/i386/halt.c: Likewise.
	* grub-core/lib/mips/arc/reboot.c: Likewise.
	* grub-core/lib/mips/loongson/reboot.c: Likewise.
	* grub-core/loader/i386/pc/chainloader.c: Likewise.
	* grub-core/loader/i386/xnu.c: Likewise.
	* grub-core/loader/multiboot.c: Likewise.
	* grub-core/net/bootp.c: Likewise.
	* grub-core/net/net.c: Likewise.
	* grub-core/normal/term.c: Likewise.
	* grub-core/partmap/bsdlabel.c: Likewise.
	* grub-core/parttool/msdospart.c: Likewise.
	* grub-core/term/gfxterm.c: Likewise.
	* grub-core/term/terminfo.c: Likewise.
	* grub-core/video/i386/pc/vbe.c: Likewise.
	* util/grub-menulst2cfg.c: Likewise.
	* util/grub-mkdevicemap.c: Likewise.
	* util/grub-mklayout.c: Likewise.
	* util/grub-mkrelpath.c: Likewise.
	* util/grub-script-check.c: Likewise.
	* util/ieee1275/grub-ofpathname.c: Likewise.
	* util/resolve.c: Likewise.

	guidelines.

	* grub-core/kern/dl.c (grub_dl_check_license): New function.
	(grub_dl_load_core): Use grub_dl_check_license.
	* include/grub/dl.h (GRUB_MOD_SECTION): New macro.
	(GRUB_MOD_LICENSE): Likewise.
	(GRUB_MOD_DUAL_LICENSE): Likewise.
	All modules updated.

	Made static.
	(grub_gzfile_open): Removed. All users updated.
	(GRUB_MOD_INIT): New function.
	(GRUB_MOD_FINI): Likewise.
	* grub-core/kern/file.c (grub_file_filters_all): New variable.
	(grub_file_filters_enabled): Likewise.
	(grub_file_open): Handle filters.
	* grub-core/loader/i386/bsd.c (GRUB_MOD_INIT): Load gzio.
	* grub-core/normal/main.c (GRUB_MOD_INIT): Likewise.
	* include/grub/file.h (grub_file_filter_id_t): New type.
	(grub_file_filter_t): Likewise.
	(grub_file_filters_all): New extern variable.
	(grub_file_filters_enabled): Likewise.
	(grub_file_filter_register): New inline function.
	(grub_file_filter_unregister): Likewise.
	(grub_file_filter_disable): Likewise.
	(grub_file_filter_disable_compression): Likewise.
	* include/grub/gzio.h: Removed.

	* conf/i386-multiboot.rmk: New file.
	* configure.ac: Add multiboot port.
	* include/grub/i386/multiboot/boot.h: New file.
	* include/grub/i386/multiboot/console.h: Likewise.
	* include/grub/i386/multiboot/init.h: Likewise.
	* include/grub/i386/multiboot/kernel.h: Likewise.
	* include/grub/i386/multiboot/loader.h: Likewise.
	* include/grub/i386/multiboot/memory.h: Likewise.
	* include/grub/i386/multiboot/serial.h: Likewise.
	* include/grub/i386/multiboot/time.h: Likewise.
	* include/grub/multiboot.h: Add GRUB_MACHINE_MULTIBOOT to ifdef.
	* loader/multiboot.c: Likewise.
	* loader/multiboot_mbi2.c: Likewise.
	* util/grub-mkrescue.in: Generate multiboot rescue.

	Rename "module" to "module2".
	Reported by: Seth Goldberg.

	Enable multiboot on non-pc.

	* conf/i386-coreboot.rmk, conf/i386-pc.rmk (pkglib_MODULES): Move
	multiboot.mod and multiboot2.mod to ...
	* conf/i386.rmk (pkglib_MODULES): ... here.
	* conf/i386-coreboot.rmk, conf/i386-pc.rmk (multiboot_mod_SOURCES):
	Moved to ...
	* conf/i386.rmk (multiboot_mod_SOURCES): .. here.
	* conf/i386-coreboot.rmk, conf/i386-pc.rmk (multiboot_mod_CFLAGS):
	Moved to ...
	* conf/i386.rmk (multiboot_mod_CFLAGS): .. here.
	* conf/i386-coreboot.rmk, conf/i386-pc.rmk (multiboot_mod_ASFLAGS):
	Moved to ...
	* conf/i386.rmk (multiboot_mod_ASFLAGS): .. here.
	* conf/i386-coreboot.rmk, conf/i386-pc.rmk (multiboot_mod_LDFLAGS):
	Moved to ...
	* conf/i386.rmk (multiboot_mod_LDFLAGS): .. here.
	* conf/x86_64-efi.rmk (pkglib_MODULES): Remove ata.mod and
	relocator.mod.
	(ata_mod_SOURCES): Removed.
	(ata_mod_CFLAGS): Likewise.
	(ata_mod_LDFLAGS): Likewise.
	(relocator_mod_SOURCES): Removed.
	(relocator_mod_CFLAGS): Likewise.
	(relocator_mod_ASFLAGS): Likewise.
	(relocator_mod_LDFLAGS): Likewise.
	Include i386.mk.
	* include/grub/x86_64/multiboot.h: New file.
	* loader/i386/multiboot.c (grub_multiboot_boot) [GRUB_MACHINE_EFI]:
	Terminate EFI.

	Video multiboot support.

	* include/grub/multiboot.h (grub_multiboot_set_accepts_video):
	New prototype.
	* include/multiboot.h: Resynced with multiboot specification.
	* include/multiboot2.h: Likewise.
	* loader/i386/multiboot.c (UNSUPPORTED_FLAGS): Support video flags.
	(grub_multiboot): Parse MULTIBOOT_VIDEO_MODE fields.
	* loader/i386/multiboot_mbi.c (DEFAULT_VIDEO_MODE): New constant.
	(HAS_VGA_TEXT): Likewise.
	(accepts_video): New variable.
	(grub_multiboot_set_accepts_video): New function.
	(grub_multiboot_get_mbi_size): Account for video structures.
	(set_video_mode): New function.
	(retrieve_video_parameters): Likewise.
	(grub_multiboot_make_mbi): Fill video fields.

	
	* include/grub/i386/loader.h (grub_linux16_boot): Renamed to ...
	(grub_linux16_real_boot): ... this.
	* kern/i386/loader.S: Likewise.
	* loader/i386/pc/linux.c: Include `<grub/video.h>' and `<grub/mm.h>'.
	(grub_linux16_boot): New function.  Switches to text mode and calls
	grub_linux16_real_boot().
	
	* loader/i386/bsd.c: Include `<grub/video.h>'.
	(grub_freebsd_boot, grub_openbsd_boot, grub_netbsd_boot): Switch to
	text mode before calling grub_unix_real_boot().
	
	* loader/i386/multiboot.c: Include `<grub/video.h>'.
	(grub_multiboot_boot): Switch to text mode before calling
	grub_relocator32_boot().
	
	* loader/i386/pc/chainloader.c: Include `<grub/video.h>'.
	(grub_chainloader_boot): Switch to text mode before calling
	grub_chainloader_real_boot().