even more important testing by Colin.
* Makefile.util.def (libgrubmods.a): Add crc.c and gzio.c
* grub-core/Makefile.core.def (btrfs): Add crc.c.
* grub-core/fs/btrfs.c: Stub replaced with real implementation.
* grub-core/io/gzio.c (grub_gzio): New fields mem_input_size,
mem_input_off and mem_input. All users updated to accept in-RAM input.
(gzio_seek): New function.
(test_zlib_header): Likewise.
(grub_gzio_read): Likewise.
(grub_zlib_decompress): Likewise.
* grub-core/kern/emu/getroot.c (grub_find_root_device_from_mountinfo):
Accept partial and non-virtual mounts.
(grub_guess_root_device): Do rescanning after device_from_mountinfo to
avoid receiving /dev/dm-X as device.
* grub-core/kern/emu/misc.c (grub_make_system_path_relative_to_its_root):
Handle bind and partial mounts.
* grub-core/lib/crc.c: New file.
* include/grub/deflate.h: Likewise.
* include/grub/emu/misc.h (grub_find_root_device_from_mountinfo): New
proto.
* include/grub/lib/crc.h: New file.
* include/grub/ieee1275/ieee1275.h (grub_ieee1275_flag): New enum value
GRUB_IEEE1275_FLAG_BROKEN_ADDRESS_CELLS.
* grub-core/kern/ieee1275/mmap.c (grub_machine_mmap_iterate): Ignore
adress_cells and size:cells if GRUB_IEEE1275_FLAG_BROKEN_ADDRESS_CELLS
is set.
* grub-core/kern/ieee1275/cmain.c (grub_ieee1275_find_options): Set
GRUB_IEEE1275_FLAG_BROKEN_ADDRESS_CELLS on powermacs.
(grub_machine_init): Don't check amount of low memory as reportedly
INT 12h can be broken and if low memory is too low we wouldn't have
gotten into grub_machine_init anyway.
* grub-core/kern/i386/pc/startup.S: Remove 0-data check.
* grub-core/lib/reed_solomon.c (decode_block): Do not proceed on 0 data
or 0 redundancy.
(grub_reed_solomon_add_redundancy): Do not proceed with 0 redundancy.
(grub_reed_solomon_recover): Likewise.
* include/grub/elfload.h (grub_elf32_size): New parameter. All users updated.
Return maximum segments alignment.
(grub_elf64_size): Likewise.
* kern/elf.c (grub_elf32_size): New parameter. All users updated.
Return maximum segments alignment.
(grub_elf64_size): Likewise.
* grub-core/loader/powerpc/ieee1275/linux.c:
(grub_linux_claimmap_iterate): New function. Uses the "available"property
in the "memory" node for memory allocation for kernel in the PowerPC loader.
(grub_linux_load32): Correctly find linux entry point offset.
(grub_linux_load64): Likewise.
* Makefile.util.def (grub-setup): Add grub-core/lib/reed_solomon.c.
* grub-core/Makefile.am (rs_decoder.S): New target.
(kern/i386/pc/startup.S): Depend on rs_decoder.S.
* grub-core/kern/i386/pc/startup.S (reed_solomon_redundancy): New field.
(multiboot): Move to RS part.
(post_reed_solomon): New label.
(grub_boot_drive): Move to non-RS part since it's modified in memory
on boot.
Include rs_decoder.S.
* grub-core/lib/reed_solomon.c: New file.
* include/grub/offsets.h (GRUB_KERNEL_I386_PC_REED_SOLOMON_REDUNDANCY):
New definition.
(GRUB_KERNEL_I386_PC_MULTIBOOT_SIGNATURE): Removed.
(GRUB_KERNEL_I386_PC_RAW_SIZE): Updated.
(GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_PART): New definition.
* include/grub/partition.h (grub_partition_map): Change prototype of
embed to allow returning additional sectors.
* include/grub/reed_solomon.h: New file.
* util/grub-setup.c (setup): Handle Reed-Solomon.
Support degraded ZFS arrays in "grub-probe -t device" resolution.
* grub-core/kern/emu/getroot.c (find_root_device_from_libzfs): When
the pool is an array of devices, iterate through it and return the
first device that passes a stat() test (instead of blindly returning
the first one).
