Commit Graph

2030 Commits

Author SHA1 Message Date
Jia Tan 5f0c5a0438 xz: Allows --block-list filters to scale down memory usage.
Previously, only the default filter chain could have its memory usage
adjusted. The filter chains specified with --filtersX were not checked
for memory usage. Now, all used filter chains will be adjusted if
necessary.
2023-07-17 23:34:55 +08:00
Jia Tan 479fd58d60 xz: Do not include block splitting if encoders are disabled.
The block splitting logic and split_block() function are not needed if
encoders are disabled. This will help slightly reduce the binary size
when built without encoders and allow split_block() to use functions
that require encoders being enabled.
2023-07-17 23:34:55 +08:00
Jia Tan f86ede2250 xz: Free filters[] in debug mode.
This will only free filter chains created with --filters1-9 since the
default filter chain may be set from a static function variable. The
complexity to free the default filter chain is not worth the burden on
code maintenance.
2023-07-17 23:34:55 +08:00
Jia Tan f281cd0d69 xz: Add a message if --block-list is used outside of xz compresssion.
--block-list is only supported with compression in xz format. This avoids
silently ignoring when --block-list is unused.
2023-07-17 23:34:55 +08:00
Jia Tan d6af7f3470 xz: Create command line options for filters[1-9].
The new command line options are meant to be combined with --block-list.
They work as an optional extension to --block-list to specify a custom
filter chain for each block listed. The new options allow the creation
of up to 9 reusable filter chains. For instance:

xz --block-list=1:10MiB,3:5MiB,,2:5MiB,1:0 --filters1=delta--lzma2 \
--filters2=x86--lzma2 --filters3=arm64--lzma2

Will create the following blocks:
1. A block of size 10 MiB with filter chain delta, lzma2.
2. A block of size 5 MiB with filter chain arm64, lzma2.
3. A block of size 5 MiB with filter chain arm64, lzma2.
4. A block of size 5 MiB with filter chain x86, lzma2.
5. A block containing the rest of the file contents with filter chain
   delta, lzma2.
2023-07-17 23:34:55 +08:00
Jia Tan 072d292501 xz: Use lzma_filters_free() in forget_filter_chain().
This is a little cleaner than the previous implementation of
forget_filter_chain(). It is also more consistent since
lzma_str_to_filters() will always terminate the filter chain so there
is no need to terminate it later in coder_set_compression_settings().
2023-07-17 23:34:55 +08:00
Jia Tan 3d21da5cff xz: Separate string to filter conversion into a helper function.
Converting from string to filter will also need to be done for block
specific filter chains.
2023-07-17 23:34:55 +08:00
Jia Tan a6583726e5 Tests: Use new --filters option in test_compress.sh 2023-07-17 23:34:55 +08:00
Jia Tan 5f3b898d07 xz: Update --long-help and man page for new --filters option. 2023-07-17 23:34:55 +08:00
Jia Tan 9ded880a02 xz: Add --filters option to CLI.
The --filters option uses the new lzma_str_to_filters() function
to convert a string into a full filter chain. Using this option
will reset all previous filters set by --preset, --[filter], or
--filters.
2023-07-17 23:34:55 +08:00
Jia Tan 2c189bb00a Tests: Improve feature testing for skipping.
Fixed a bug where test_compress_* would all fail if arm64 or armthumb
filters were enabled for compression but arm was disabled. Since the
grep tests only checked for "define HAVE_ENCODER_ARM", this would match
on HAVE_ENCODER_ARM64 or HAVE_ENCODER_ARMTHUMB.

Now the config.h feature test requires " 1" at the end to prevent the
prefix problem. have_feature() was also updated for this even though
there were known current bugs affecting it. This is just in case future
features have a similar prefix problem.
2023-07-14 21:30:25 +08:00
Jia Tan 80a6b9bcad Translations: Update the Chinese (traditional) translation. 2023-07-10 20:56:28 +08:00
Jia Tan 17f8844e6f liblzma: Remove non-portable empty initializer.
Commit 78704f36e7 added an empty
initializer {} to prevent a warning. The empty initializer is a GNU
extension and results in a build failure on MSVC. The -wpedantic flag
warns about empty initializers.
2023-07-08 21:24:19 +08:00
Jia Tan 3aca4f629c Translations: Update the Vietnamese translation. 2023-07-08 20:03:59 +08:00
Jia Tan 66bdcfa85f Tests: Fix memory leaks in test_index.
Several tests were missing calls to lzma_index_end() to clean up the
lzma_index structs. The memory leaks were discovered by using
-fsanitize=address with GCC.
2023-06-29 00:07:16 +08:00
Jia Tan fe3bd438fb Tests: Fix memory leaks in test_block_header.
test_block_header was not properly freeing the filter options between
calls to lzma_block_header_decode(). The memory leaks were discovered by
using -fsanitize=address with GCC.
2023-06-29 00:07:05 +08:00
Jia Tan 78704f36e7 liblzma: Prevent uninitialzed warning in mt stream encoder.
This change only impacts the compiler warning since it was impossible
for the wait_abs struct in stream_encode_mt() to be used before it was
initialized since mythread_condtime_set() will always be called before
mythread_cond_timedwait().

Since the mythread.h code is different between the POSIX and
Windows versions, this warning was only present on Windows builds.

Thanks to Arthur S for reporting the warning and providing an initial
patch.
2023-06-29 00:06:16 +08:00
Jia Tan e3356a204c liblzma: Prevent warning for MSYS2 Windows build.
In lzma_memcmplen(), the <intrin.h> header file is only included if
_MSC_VER and _M_X64 are both defined but _BitScanForward64() was
previously used if _M_X64 was defined. GCC for MSYS2 defines _M_X64 but
not _MSC_VER so _BitScanForward64() was used without including
<intrin.h>.

Now, lzma_memcmplen() will use __builtin_ctzll() for MSYS2 GCC builds as
expected.
2023-06-28 23:59:51 +08:00
Jia Tan 45e250a9e9 CI: Add test with -fsanitize=address,undefined.
ci_build.sh was updated to accept disabling of __attribute__ ifunc
and CLMUL. This will allow -fsanitize=address to pass because ifunc
is incompatible with -fsanitize=address. The CLMUL implementation has
optimizations that potentially read past the buffer and mask out the
unwanted bytes.

This test will only run on Autotools Linux.
2023-06-28 23:59:47 +08:00
Jia Tan 596ee722cd CI: Upgrade checkout action from v2 to v3. 2023-06-28 20:48:49 +08:00
Jia Tan 86118ea320 Update THANKS. 2023-06-27 23:56:06 +08:00
Jia Tan 3d1fdddf92 Docs: Document the configure option --disable-ifunc in INSTALL. 2023-06-27 23:56:06 +08:00
Lasse Collin b4cf7a2822 Minor tweaks to style and comments. 2023-06-27 23:56:06 +08:00
Lasse Collin 23fb9e3a32 CMake: Rename CHECK_ATTR_IFUNC to ALLOW_ATTR_IFUNC.
It's so that there's a clear difference in wording compared
to liblzma's integrity check types.
2023-06-27 23:56:06 +08:00
Lasse Collin ee44863ae8 liblzma: Add ifunc implementation to crc64_fast.c.
The ifunc method avoids indirection via the function pointer
crc64_func. This works on GNU/Linux and probably on FreeBSD too.
The previous __attribute((__constructor__)) method is kept for
compatibility with ELF platforms which do support ifunc.

The ifunc method has some limitations, for example, building
liblzma with -fsanitize=address will result in segfaults.
The configure option --disable-ifunc must be used for such builds.

Thanks to Hans Jansen for the original patch.
Closes: https://github.com/tukaani-project/xz/pull/53
2023-06-27 23:55:59 +08:00
Hans Jansen b72d212024 Add ifunc check to CMakeLists.txt
CMake build system will now verify if __attribute__((__ifunc__())) can be
used in the build system. If so, HAVE_FUNC_ATTRIBUTE_IFUNC will be
defined to 1.
2023-06-27 15:33:15 +03:00
Hans Jansen 23b5c36fb7 Add ifunc check to configure.ac
configure.ac will now verify if __attribute__((__ifunc__())) can be used in
the build system. If so, HAVE_FUNC_ATTRIBUTE_IFUNC will be defined to 1.
2023-06-27 15:33:15 +03:00
Jia Tan dbb3a536ed CI: Add apt update command before installing dependencies.
Without the extra command, all of the CI tests were automatically
failing because the Ubuntu servers could not be reached properly.
2023-06-07 00:23:02 +08:00
Jia Tan 6bcd516812 Update THANKS. 2023-06-07 00:10:38 +08:00
Benjamin Buch 0d94ba6922
CMake: Protects against double find_package
Boost iostream uses `find_package` in quiet mode and then again uses
`find_package` with required. This second call triggers a 
`add_library cannot create imported target "ZLIB::ZLIB" because another
target with the same name already exists.`

This can simply be fixed by skipping the alias part on secondary
`find_package` runs.
2023-06-06 21:32:45 +08:00
Jia Tan 045d7aae28 Translations: Update the Esperanto translation. 2023-05-31 23:57:57 +08:00
Jia Tan b0cc7c2dce Translations: Update the Croatian translation. 2023-05-31 23:57:57 +08:00
Jia Tan af045ef6f8 Translations: Update the Chinese (simplified) translation. 2023-05-31 20:15:53 +08:00
Jia Tan e6b92d5817 Translations: Update German translation of man pages. 2023-05-17 23:12:13 +08:00
Jia Tan 592961ccdb Translations: Update the German translation. 2023-05-17 23:09:18 +08:00
Jia Tan 13572cb2c3 Translations: Update the Croatian translation. 2023-05-17 20:30:01 +08:00
Jia Tan 4e6e425ea8 Translations: Update Korean translation of man pages. 2023-05-17 20:26:54 +08:00
Jia Tan d5ef1f6faf Translations: Update the Korean translation. 2023-05-17 20:13:01 +08:00
Jia Tan e22d0b0f2e Translations: Update the Spanish translation. 2023-05-16 23:49:09 +08:00
Jia Tan f50da74d52 Translations: Update the Romanian translation. 2023-05-16 23:47:23 +08:00
Jia Tan 4b9ad60a73 Translations: Update Romanian translation of man pages. 2023-05-16 23:45:43 +08:00
Jia Tan cb6fd57f88 Translations: Update Ukrainian translation of man pages. 2023-05-16 23:44:45 +08:00
Jia Tan c3e8fcbc2d Translations: Update the Ukrainian translation. 2023-05-16 23:44:45 +08:00
Jia Tan 27b81b84fc Translations: Update the Polish translation. 2023-05-16 23:44:36 +08:00
Jia Tan 8024ad636a Translations: Update the Swedish translation. 2023-05-16 22:52:14 +08:00
Jia Tan 6699a29673 Translations: Update the Esperanto translation. 2023-05-16 21:21:38 +08:00
Jia Tan f36ca7982f liblzma: Slightly rewords lzma_str_list_filters() documentation.
Reword "options required" to "supported options". The previous may have
suggested that the options listed were all required anytime a filter is
used for encoding or decoding. The reword makes this more clear that
adjusting the options is optional.
2023-05-13 21:21:54 +08:00
Jia Tan 3374a5359e liblzma: Adds lzma_nothrow to MicroLZMA API functions.
None of the liblzma functions may throw an exception, so this
attribute should be applied to all liblzma API functions.
2023-05-12 00:00:47 +08:00
Jia Tan 8f23657498 liblzma: Exports lzma_mt_block_size() as an API function.
The lzma_mt_block_size() was previously just an internal function for
the multithreaded .xz encoder. It is used to provide a recommended Block
size for a given filter chain.

This function is helpful to determine the maximum Block size for the
multithreaded .xz encoder when one wants to change the filters between
blocks. Then, this determined Block size can be provided to
lzma_stream_encoder_mt() in the lzma_mt options parameter when
intializing the coder. This requires one to know all the filter chains
they are using before starting to encode (or at least the filter chain
that will need the largest Block size), but that isn't a bad limitation.
2023-05-11 23:54:44 +08:00
Jia Tan d0f33d672a liblzma: Creates IS_ENC_DICT_SIZE_VALID() macro.
This creates an internal liblzma macro to test if the dictionary size
is valid for encoding.
2023-05-11 22:28:45 +08:00