MFV: xz 5.6.2.

MFC after: 4 weeks

Backport export of lzma_mt_block_size symbol.

This restores binary compatibility against liblzma 5.6.0 library.

PR: 278127
MFC after: 3 days

Revert "MFV: xz 5.6.0"

This commit reverts 8db56defa766eacdbaf89a37f25b11a57fd9787a,
rolling back the vendor import of xz 5.6.0 and restoring the
package to version 5.4.5.

The revert was not direct

Revert "MFV: xz 5.6.0"

This commit reverts 8db56defa766eacdbaf89a37f25b11a57fd9787a,
rolling back the vendor import of xz 5.6.0 and restoring the
package to version 5.4.5.

The revert was not directly due to the attack (CVE-2024-3094):
our import process have removed the test cases and build scripts
that would have enabled the attack. However, reverting would
help to reduce potential confusion and false positives from
security scanners that assess risk based solely on version
numbers.

Another commit will follow to restore binary compatibility with
the liblzma 5.6.0 library by making the previously private
symbol (lzma_mt_block_size) public.

PR: 278127
MFC after: 3 days

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MFV: xz 5.6.0.

MFC after: 2 weeks

MFV: xz 5.4.0

MFC after: 2 weeks

MFV: Merge xz 5.2.8

Relnotes: yes
MFC after: 2 weeks

Merge ^/head r311460 through r311545.

MFV r311477: xz 5.2.3.

MFC after: 2 weeks

MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Catch up with head.

MFV r291123:

xz 5.2.2.

MFC after: 1 month
Relnotes: yes

Catch up with HEAD (r280229-r284686).

Merge sync of head

Merge from head

MFH: r280643-r281852

Sponsored by: The FreeBSD Foundation

MFV r281278:

- Update xz to 5.2.1, where the most visible change is that it
fixed a compression-ratio regression in fast mode LZMA1 and
LZMA2 and used cpuset_getaffinity() for CPU cores detec

MFV r281278:

- Update xz to 5.2.1, where the most visible change is that it
fixed a compression-ratio regression in fast mode LZMA1 and
LZMA2 and used cpuset_getaffinity() for CPU cores detection.
- Make liblzma use the base system SHA256 implementation instead of
the bundled one.
- Additional annotation in config.h for FreeBSD specific tweaks.
- Refresh symbols in XZprivate_1.0 to reflect reality.

Relnotes: yes
MFC after: 1 month (TBD)

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Merge from HEAD

MFH: r278202,r278205-r278590

Sponsored by: The FreeBSD Foundation

Merge ^/head r278351 through r278498.

Merge xz 5.2.0.

This brings support for multi-threaded compression. This brings close
N times faster compression where N is the number of CPU cores.
Because of this, liblzma now depends on libthr.

Merge xz 5.2.0.

This brings support for multi-threaded compression. This brings close
N times faster compression where N is the number of CPU cores.
Because of this, liblzma now depends on libthr.

Soon libarchive will be modified to use the new lzma API.

Thanks to antoine@ for the exp-run.

Differential Revision: https://reviews.freebsd.org/D1786
Reviewed by: bapt

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IFC @ r224187

Integrate from Head into ZFSD feature branch as of revision r224141.

Update xz to git snapshot of v5.0 branch as of 20110711 (post-5.0.3)

For architectures with __NO_STRICT_ALIGNMENT
define TUKLIB_FAST_UNALIGNED_ACCESS

MFC after: 2 weeks

Upgrade xz to git snapshot as of 20101010

Approved by: delphij (mentor)
MFC after: 1 month

MFC r207842, r207844, r208099:

MFC r207842:
Import of liblzma, xz, xzdec, lzmainfo from vendor branch
Add support for xz and lzma to lesspipe.sh (xzless, lzless)

MFC r207844:
Add two public headers

MFC r207842, r207844, r208099:

MFC r207842:
Import of liblzma, xz, xzdec, lzmainfo from vendor branch
Add support for xz and lzma to lesspipe.sh (xzless, lzless)

MFC r207844:
Add two public headers missing in r207842
Adjust CFLAGS for lzmainfo, xz, xzdec

MFC r208099:
Add versioned symbols to liblzma
Use default SHLIB_MAJOR.

Approved by: delphij (mentor)

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