Add support for LZO compression in GRUB:

- import of minilzo library,
- LZO decompression for btrfs,
- lzop files decompression.

* grub-core/io/lzopio.c: New file.
* grub-core/lib/adler32.c: Likewise.
* grub-core/lib/minilzo/lzoconf.h: Likewise.
* grub-core/lib/minilzo/lzodefs.h: Likewise.
* grub-core/lib/minilzo/minilzo.c: Likewise.
* grub-core/lib/minilzo/minilzo.h: Likewise.
* Makefile.util.def (libgrubmods.a): Add grub-core/io/lzopio.c,
grub-core/lib/adler32.c, grub-core/io/lzopio.c,
grub-core/lib/minilzo/minilzo.c to common.
* Makefile.util.def (libgrubmods.a): Add flags required by minilzo to
cflags in cppflags.
* grub-core/Makefile.core.def (btrfs): Likewise.
* grub-core/Makefile.core.def (lzopio): New module.
(adler32): Likewise.
* grub-core/fs/btrfs.c: Include minilzo.h.
(GRUB_BTRFS_COMPRESSION_LZO): New define.
(GRUB_BTRFS_LZO_BLOCK_SIZE): Likewise.
(GRUB_BTRFS_LZO_BLOCK_MAX_CSIZE): Likewise.
(grub_btrfs_lzo_decompress): New function.
(grub_btrfs_extent_read): Add support for LZO compression type.
* include/grub/types.h (GRUB_UCHAR_MAX): New define.
(GRUB_USHRT_MAX): Likewise.
(GRUB_UINT_MAX): Likewise.
* grub-core/lib/posix_wrap/limits.h (USHRT_MAX): Likewise.
(UINT_MAX): Likewise.
(CHAR_BIT): Likewise.
* grub-core/lib/posix_wrap/sys/types.h (ULONG_MAX): Moved to
grub-core/lib/posix_wrap/limits.h
(UCHAR_MAX): Likewise.
* include/grub/file.h (grub_file_filter_id): New compression filter
GRUB_FILE_FILTER_LZOPIO.
* include/grub/file.h (grub_file_filter_id): Set
GRUB_FILE_FILTER_LZOPIO as GRUB_FILE_FILTER_COMPRESSION_LAST.
* include/grub/types.h (grub_get_unaligned16): New function.
(grub_get_unaligned32): Likewise.
(grub_get_unaligned64): Likewise.
* util/import_gcry.py (cryptolist): Add adler32.

diff --cc ChangeLog
index 5d1fc0c695889c383d75f32aedf8847f8d8c74d7,5d1fc0c695889c383d75f32aedf8847f8d8c74d7..6484cf826f0df1492ac8363a80267cd6a5f7a5f2
--- 1/ChangeLog
--- 2/ChangeLog
+++ b/ChangeLog
@@@ -1,3 -1,3 +1,48 @@@
++2011-10-06  Szymon Janc <szymon@janc.net.pl>
++
++      Add support for LZO compression in GRUB:
++      - import of minilzo library, 
++      - LZO decompression for btrfs,
++      - lzop files decompression.
++
++      * grub-core/io/lzopio.c: New file.
++      * grub-core/lib/adler32.c: Likewise.
++      * grub-core/lib/minilzo/lzoconf.h: Likewise.
++      * grub-core/lib/minilzo/lzodefs.h: Likewise.
++      * grub-core/lib/minilzo/minilzo.c: Likewise.
++      * grub-core/lib/minilzo/minilzo.h: Likewise.
++      * Makefile.util.def (libgrubmods.a): Add grub-core/io/lzopio.c,
++      grub-core/lib/adler32.c, grub-core/io/lzopio.c,
++      grub-core/lib/minilzo/minilzo.c to common.
++      * Makefile.util.def (libgrubmods.a): Add flags required by minilzo to
++      cflags in cppflags.
++      * grub-core/Makefile.core.def (btrfs): Likewise.
++      * grub-core/Makefile.core.def (lzopio): New module.
++      (adler32): Likewise.
++      * grub-core/fs/btrfs.c: Include minilzo.h.
++      (GRUB_BTRFS_COMPRESSION_LZO): New define.
++      (GRUB_BTRFS_LZO_BLOCK_SIZE): Likewise.
++      (GRUB_BTRFS_LZO_BLOCK_MAX_CSIZE): Likewise.
++      (grub_btrfs_lzo_decompress): New function.
++      (grub_btrfs_extent_read): Add support for LZO compression type.
++      * include/grub/types.h (GRUB_UCHAR_MAX): New define.
++      (GRUB_USHRT_MAX): Likewise.
++      (GRUB_UINT_MAX): Likewise.
++      * grub-core/lib/posix_wrap/limits.h (USHRT_MAX): Likewise.
++      (UINT_MAX): Likewise.
++      (CHAR_BIT): Likewise.
++      * grub-core/lib/posix_wrap/sys/types.h (ULONG_MAX): Moved to
++      grub-core/lib/posix_wrap/limits.h
++      (UCHAR_MAX): Likewise.
++      * include/grub/file.h (grub_file_filter_id): New compression filter
++      GRUB_FILE_FILTER_LZOPIO.
++      * include/grub/file.h (grub_file_filter_id): Set
++      GRUB_FILE_FILTER_LZOPIO as GRUB_FILE_FILTER_COMPRESSION_LAST.
++      * include/grub/types.h (grub_get_unaligned16): New function.
++      (grub_get_unaligned32): Likewise.
++      (grub_get_unaligned64): Likewise.
++      * util/import_gcry.py (cryptolist): Add adler32.
++
  2011-10-01  Ales Nesrsta <starous@volny.cz>
  
        * grub-core/bus/usb/uhci.c: Changes made by Rock Cui - thanks!