Commit Graph

2284 Commits

Author SHA1 Message Date
Lasse Collin 026a5897c7 xz: Initialize the pledge(2) sandbox at the very beginning of main().
It feels better that the initializations are sandboxed too.
They don't do anything that the pledge() call wouldn't allow.
2022-11-08 13:43:19 +02:00
Lasse Collin 49a59f6ca0 xz: Extend --robot --info-memory output.
Now it includes everything that the human-readable --info-memory shows.
2022-11-07 22:51:16 +02:00
Lasse Collin 5e2450c75c liblzma: Include cached memory in reported memusage in threaded decoder.
This affects lzma_memusage() and lzma_memlimit_set() when used
with the threaded decompressor. Now all allocations are reported
by lzma_memusage() (so it's not misleading) and lzma_memlimit_set()
cannot lower the limit below that value.

The alternative would have been to allow lowering the limit if
doing so is possible by freeing the cached memory but since
the primary use case of lzma_memlimit_set() is to increase
memlimit after LZMA_MEMLIMIT_ERROR this simple approach
was selected.

The cached memory was always included when enforcing
the memory usage limit while decoding.

Thanks to Jia Tan.
2022-11-07 17:22:04 +02:00
Jia Tan 1fc6e7dd1f xz: Avoid a compiler warning in progress_speed() in message.c.
This should be smaller too since it avoids the string constants.
2022-11-07 16:24:56 +02:00
Lasse Collin cf118c0146 Build: Clarify comment in configure.ac about SSE2. 2022-10-31 16:26:05 +02:00
Lasse Collin aad3c609ff Build: Remove obsolete commented-out lines from configure.ac. 2022-10-31 16:16:37 +02:00
Lasse Collin e53e0e2186 Windows: Fix mythread_once() macro with Vista threads.
Don't call InitOnceComplete() if initialization was already done.

So far mythread_once() has been needed only when building
with --enable-small. windows/build.bash does this together
with --disable-threads so the Vista-specific mythread_once()
is never needed by those builds. VS project files or
CMake-builds don't support HAVE_SMALL builds at all.
2022-10-31 13:31:58 +02:00
Lasse Collin 48dde3bab9 liblzma: Silence -Wconversion warning from crc64_fast.c. 2022-10-31 11:54:44 +02:00
Lasse Collin a243c617ff CMake: Sync tuklib_cpucores.cmake with tuklib_cpucores.m4.
This was forgotten from commit 2611c4d905.
2022-10-31 11:49:47 +02:00
Lasse Collin 05c72de06f Tests: test_files.sh: Make it not fail if features were disabled at build.
It now tries to test as many files as easily possible.
The exit status indicates skipping if any of the files were
skipped. This way it is easy to notice if something is being
skipped when it isn't expected.
2022-10-27 15:49:18 +03:00
Lasse Collin b3459327a5 Tests: test_files.sh: Suppress an expected warning from the log.
xz (but not xzdec) will normally warn about unsupported check
but since we are testing specifically such a file, it's better
to silence that warning so that it doesn't look suspicious in
test_files.sh.log.

The use of -q and -Q in xzdec is just for consistency and
doesn't affect the result at least for now.
2022-10-27 15:30:13 +03:00
Lasse Collin 798c86e423 Tests: test_files.sh: Print the reason for skipping if xz & xzdec missing. 2022-10-27 15:27:50 +03:00
Lasse Collin c1dd8524e1 Tests: Keep test_compress_* working when some filters are unavailable. 2022-10-27 01:12:40 +03:00
Jia Tan ce30ada919 Tests: test_bcj_exact_size skips properly now if PowerPC filter disabled. 2022-10-26 20:12:01 +03:00
Lasse Collin 89c5cfcaca Tests: Test also unsupported-*.xz. 2022-10-26 00:05:57 +03:00
Lasse Collin a4b214b93a Build: Use AC_CONFIG_HEADERS instead of the ancient AC_CONFIG_HEADER.
We require Autoconf >= 2.69 and that has AC_CONFIG_HEADERS.

There is a warning about AC_PROG_CC_C99 being obsolete but
it cannot be removed because it is needed with Autoconf 2.69.
2022-10-25 23:45:03 +03:00
Lasse Collin 04f299b64e Build: Update m4/ax_pthread.m4 from Autoconf Archive. 2022-10-25 23:31:44 +03:00
Lasse Collin 59c4d6e139 Build: Add configure option --disable-microlzma.
MicroLZMA was made for EROFS and used by erofs-utils.
It might be used by something else in the future but
those wanting a smaller build for specific situations
can now disable this rarely-needed feature.
2022-10-25 23:28:34 +03:00
Lasse Collin 054ccd6d14 xz: Fix --single-stream with an empty .xz Stream.
Example:

    $ xz -dc --single-stream good-0-empty.xz
    xz: good-0-empty.xz: Internal error (bug)

The code, that is tries to catch some input file issues early,
didn't anticipate LZMA_STREAM_END which is possible in that
code only when --single-stream is used.
2022-10-25 23:09:11 +03:00
Lasse Collin 563288ea70 xz: Add support for OpenBSD's pledge() sandbox. 2022-10-25 21:30:48 +03:00
Lasse Collin f9913e8ee2 xz: Fix decompressor behavior if input uses an unsupported check type.
Now files with unsupported check will make xz display
a warning, set the exit status to 2 (unless --no-warn is used),
and then decompress the file normally. This is how it was
supposed to work since the beginning but this was broken by
the commit 231c3c7098, that is,
a little before 5.0.0 was released. The buggy behavior displayed
a message, set exit status 1 (error), and xz didn't attempt to
to decompress the file.

This doesn't matter today except for special builds that disable
CRC64 or SHA-256 at build time (but such builds should be used
in special situations only). The bug matters if new check type
is added in the future and an old xz version is used to decompress
such a file; however, it's likely that such files would use a new
filter too and an old xz wouldn't be able to decompress the file
anyway.

The first hunk in the commit is the actual fix. The second hunk
is a cleanup since LZMA_TELL_ANY_CHECK isn't used in xz.

There is a test file for unsupported check type but it wasn't
used by test_files.sh, perhaps due to different behavior between
xz and the simpler xzdec.
2022-10-25 19:07:17 +03:00
Lasse Collin aa4fe145b9 xz: Clarify the man page: input file isn't removed if an error occurs. 2022-10-25 18:36:19 +03:00
Lasse Collin 8b46ae8cde xz: Refactor to remove is_empty_filename().
Long ago it was used in list.c too but nowadays it's needed
only in io_open_src() so it's nicer to avoid a separate function.
2022-10-25 18:30:55 +03:00
Lasse Collin 8562401597 xz: If input file cannot be removed, treat it as a warning, not error.
Treating it as a warning (message + exit status 2) matches gzip
and it seems more logical as at that point the output file has
already been successfully closed. When it's a warning it is
possible to suppress it with --no-warn.
2022-10-25 18:23:54 +03:00
Lasse Collin fda9f85f52 liblzma: Threaded decoder: Stop the worker threads on errors.
It's waste of CPU time and electricity to leave the unfinished
worker threads running when it is known that their output will
get ignored.
2022-10-24 16:25:09 +03:00
Lasse Collin 2611c4d905 tuklib_cpucores: Use HW_NCPUONLINE on OpenBSD.
On OpenBSD the number of cores online is often less
than what HW_NCPU would return because OpenBSD disables
simultaneous multi-threading (SMT) by default.

Thanks to Christian Weisgerber.
2022-10-20 20:22:50 +03:00
Lasse Collin 424ac91c7e Tests: Skip tests in test_*.sh if encoders and/or decoders are disabled.
This isn't perfect as the scripts can still fail if only
certain filters are disabled. This is still an improvement
as now "make check" has better behavior when all encoders
or decoders are disabled.

Grepping ../config.h is simple and fairly clean but it only
works if config.h was created. CMake builds don't create
config.h but they don't use these test scripts either.

Thanks to Sebastian Andrzej Siewior for reporting the problem.
Thanks to Jia Tan for the original patch which grepped xz
error messages instead of config.h.
2022-10-19 19:39:35 +03:00
Lasse Collin ca8bf9d7c5 Test: Remove the (exit 1) lines.
I suspect that I used these in the original version because
Autoconf's manual describes that such a trick is needed in
some specific situations for portability reasons. None of those
situations listed on Autoconf 2.71 manual apply to these test
scripts though so this cleans them up.
2022-10-19 19:03:50 +03:00
Lasse Collin 82fcb7cfc1 Tests: Fix a warning in test_memlimit.c when decoders are disabled. 2022-10-19 17:14:57 +03:00
Lasse Collin b5f8271b45 Tests: Add test_memlimit to .gitignore.
Thanks to Jia Tan.
2022-10-19 17:11:46 +03:00
Jia Tan 6a86e81cab Tests: Refactor test_stream_flags.c.
Converts test_stream_flags to tuktest. Also the test will now
compile and skip properly if encoders or decoders are disabled.

Thanks to Sebastian Andrzej Siewior.
2022-10-06 22:06:17 +03:00
Jia Tan 827ac5b482 Tests: Refactor test_block_header.c.
test_block_header now achieves higher test coverage. Also the
test will now compile and skip properly if encoders or decoders
are disabled.

Thanks to Sebastian Andrzej Siewior.
2022-10-06 21:51:48 +03:00
Jia Tan 8496331895 Tests: Fix compilation issues.
test_bcj_exact_size, test_check, test_hardware, and test_index will
all now compile and skip properly if encoders or decoders are disabled.

Also fixed a small typo (disabed -> disabled).

Thanks to Sebastian Andrzej Siewior.
2022-10-06 17:34:27 +03:00
Lasse Collin 7dcabeec63 Tests: Include mythread.h in the tests that use MYTHREAD_ENABLED. 2022-10-05 16:20:47 +03:00
Jia Tan 14af758a77 liblzma: Fix a compilation issue when encoders are disabled.
When encoders were disabled and threading enabled, outqueue.c and
outqueue.h were not compiled. The multi threaded decoder required
these files, so compilation failed.
2022-10-05 16:11:33 +03:00
Jia Tan 6ca5c354bd Tests: Fix compilation error when threading support has been disabled.
Now tests that require threading are skipped when threading
support has been disabled.

Thanks to Sebastian Andrzej Siewior.
2022-10-05 16:10:21 +03:00
Lasse Collin fae37ad2af tuklib_integer: Add 64-bit endianness-converting reads and writes.
Also update the comment in liblzma's memcmplen.h.

Thanks to Michał Górny for the original patch for the reads.
2022-10-05 14:26:00 +03:00
Lasse Collin 508a44372c liblzma: Add API doc note about the .xz decoder LZMA_MEMLIMIT_ERROR bug.
The bug was fixed in 660739f99a.
2022-09-30 12:06:13 +03:00
Jia Tan 8cc9874a79 liblzma: Add dest and src NULL checks to lzma_index_cat.
The documentation states LZMA_PROG_ERROR can be returned from
lzma_index_cat. Previously, lzma_index_cat could not return
LZMA_PROG_ERROR. Now, the validation is similar to
lzma_index_append, which does a NULL check on the index
parameter.
2022-09-28 15:48:03 +03:00
Jia Tan afd5a8bf53 Tests: Create a test for the lzma_index_cat bug. 2022-09-28 15:34:23 +03:00
Jia Tan 3d5a99ca37 liblzma: Fix copying of check type statistics in lzma_index_cat().
The check type of the last Stream in dest was never copied to
dest->checks (the code tried to copy it but it was done too late).
This meant that the value returned by lzma_index_checks() would
only include the check type of the last Stream when multiple
lzma_indexes had been concatenated.

In xz --list this meant that the summary would only list the
check type of the last Stream, so in this sense this was only
a visual bug. However, it's possible that some applications
use this information for purposes other than merely showing
it to the users in an informational message. I'm not aware of
such applications though and it's quite possible that such
applications don't exist.

Regular streamed decompression in xz or any other application
doesn't use lzma_index_cat() and so this bug cannot affect them.
2022-09-28 15:29:49 +03:00
Lasse Collin a61d321727 tuklib_physmem: Fix Unicode builds on Windows.
Thanks to ArSaCiA Game.
2022-09-28 12:20:41 +03:00
Lasse Collin 5a4d3548ab Tests: Add test_memlimit.c to test restarting after LZMA_MEMLIMIT_ERROR. 2022-09-28 11:12:07 +03:00
Lasse Collin 660739f99a liblzma: Stream decoder: Fix restarting after LZMA_MEMLIMIT_ERROR.
If lzma_code() returns LZMA_MEMLIMIT_ERROR it is now possible
to use lzma_memlimit_set() to increase the limit and continue
decoding. This was supposed to work from the beginning but
there was a bug. With other decoders (.lzma or threaded .xz)
this already worked correctly.
2022-09-28 11:05:15 +03:00
Lasse Collin 7e68fda58c liblzma: Stream decoder: Fix comments. 2022-09-28 11:00:23 +03:00
Lasse Collin f664cb2584 liblzma: ARM64: Add comments. 2022-09-20 16:58:22 +03:00
Lasse Collin b557b4a0ee liblzma: ARM64: Fix wrong comment in API doc.
Thanks to Jia Tan.
2022-09-20 16:27:50 +03:00
Lasse Collin d5b0906fa5 xz: Add --experimental-arm64[=width=WIDTH].
It will be renamed to --arm64 once it is stable.

Man page or --long-help weren't updated yet.
2022-09-19 20:24:26 +03:00
Lasse Collin ecb966de30 liblzma: Add experimental ARM64 BCJ filter with a temporary Filter ID.
That is, the Filter ID will be changed once the design is final.
The current version will be removed. So files created with the
tempoary Filter ID won't be supported in the future.
2022-09-19 20:23:46 +03:00
Lasse Collin 177bdc922c liblzma: Simple/BCJ filters: Allow disabling generic BCJ options.
This will be needed for the ARM64 BCJ filter as it will use
its own options struct.
2022-09-17 22:42:18 +03:00