Commit Graph

730 Commits

Author SHA1 Message Date
Lasse Collin 16d68f874d liblzma: Fix a build failure related to external SHA-256 support.
If an appropriate header and structure were found by configure,
but a library with a usable SHA-256 functions wasn't, the build
failed.
2016-06-28 21:09:46 +03:00
Lasse Collin d9311647fc xz: Always close the file before trying to delete it.
unlink() can return EBUSY in errno for open files on some
operating systems and file systems.
2016-06-28 21:09:46 +03:00
Lasse Collin e10bfdb0fc liblzma: Fix lzma_index_dup() for empty Streams.
Stream Flags and Stream Padding weren't copied from
empty Streams.
2016-06-28 21:09:46 +03:00
Lasse Collin 06f434bd89 liblzma: Add a note to index.c for those using static analyzers. 2016-06-28 21:09:46 +03:00
Lasse Collin 9815cdf698 Bump version and soname for 5.2.2. 2015-09-29 13:59:35 +03:00
Lasse Collin 119a004349 liblzma: A MSVC-specific hack isn't needed with MSVC 2013 and newer. 2015-09-25 14:03:24 +03:00
Lasse Collin ff96ed6d25 xz: Document that threaded decompression hasn't been implemented yet. 2015-05-11 21:26:40 +03:00
Lasse Collin db190a832c Revert "xz: Use pipe2() if available."
This reverts commit 7a11c4a8e5.
It is a problem when libc has pipe2() but the kernel is too
old to have pipe2() and thus pipe2() fails. In xz it's pointless
to have a fallback for non-functioning pipe2(); it's better to
avoid pipe2() completely.

Thanks to Michael Fox for the bug report.
2015-04-20 19:59:18 +03:00
Lasse Collin 25263fd9e7 Fix the detection of installed RAM on QNX.
The earlier version compiled but didn't actually work
since sysconf(_SC_PHYS_PAGES) always fails (or so I was told).

Thanks to Ole André Vadla Ravnås for the patch and testing.
2015-03-29 22:13:48 +03:00
Lasse Collin e0ea6737b0 xz: size_t/uint32_t cleanup in options.c. 2015-03-07 22:05:57 +02:00
Lasse Collin 8bcca29a65 xz: Fix a comment and silence a warning in message.c. 2015-03-07 22:04:23 +02:00
Lasse Collin f243f5f44c liblzma: Silence more uint32_t vs. size_t warnings. 2015-03-07 22:01:00 +02:00
Lasse Collin 7f0a4c50f4 xz: Make arg_count an unsigned int to silence a warning.
Actually the value of arg_count cannot exceed INT_MAX
but it's nicer as an unsigned int.
2015-03-07 19:54:00 +02:00
Lasse Collin f6ec468015 liblzma: Fix a warning in index.c. 2015-03-07 19:33:17 +02:00
Lasse Collin dec11497a7 Bump version and soname for 5.2.1. 2015-02-26 16:53:44 +02:00
Lasse Collin 7a11c4a8e5 xz: Use pipe2() if available. 2015-02-22 19:38:48 +02:00
Lasse Collin 117d962685 liblzma: Fix a compression-ratio regression in LZMA1/2 in fast mode.
The bug was added in the commit
f48fce093b and thus
affected 5.1.4beta and 5.2.0. Luckily the bug cannot
cause data corruption or other nasty things.
2015-02-21 23:40:26 +02:00
Lasse Collin ae984e31c1 xz: Fix the fcntl() usage when creating a pipe for the self-pipe trick.
Now it reads the old flags instead of blindly setting O_NONBLOCK.
The old code may have worked correctly, but this is better.
2015-02-21 23:00:19 +02:00
Lasse Collin d935b0cdf3 tuklib_cpucores: Use cpuset_getaffinity() on FreeBSD if available.
In FreeBSD, cpuset_getaffinity() is the preferred way to get
the number of available cores.

Thanks to Rui Paulo for the patch. I edited it slightly, but
hopefully I didn't break anything.
2015-02-10 15:28:30 +02:00
Lasse Collin eb61bc58c2 xzdiff: Make the mktemp usage compatible with FreeBSD's mktemp.
Thanks to Rui Paulo for the fix.
2015-02-09 22:08:37 +02:00
Lasse Collin b9a5b6b7a2 Add a few casts to tuklib_integer.h to silence possible warnings.
I heard that Visual Studio 2013 gave warnings without the casts.

Thanks to Gabi Davar.
2015-02-03 21:45:53 +02:00
Lasse Collin c45757135f liblzma: Set LZMA_MEMCMPLEN_EXTRA depending on the compare method. 2015-01-26 21:24:39 +02:00
Lasse Collin fec88d41e6 liblzma: Silence harmless Valgrind errors.
Thanks to Torsten Rupp for reporting this. I had
forgotten to run Valgrind before the 5.2.0 release.
2015-01-26 20:39:28 +02:00
Lasse Collin a9b45badfe xz: Fix comments. 2015-01-09 21:50:19 +02:00
Lasse Collin 4170edc914 xz: Don't fail if stdout doesn't support O_NONBLOCK.
This is similar to the case with stdin.

Thanks to Brad Smith for the bug report and testing
on OpenBSD.
2015-01-09 21:34:06 +02:00
Lasse Collin 04bbc0c284 xz: Fix a memory leak in DOS-specific code. 2015-01-07 19:18:20 +02:00
Lasse Collin f0f1f6c723 xz: Don't fail if stdin doesn't support O_NONBLOCK.
It's a problem at least on OpenBSD which doesn't support
O_NONBLOCK on e.g. /dev/null. I'm not surprised if it's
a problem on other OSes too since this behavior is allowed
in POSIX-1.2008.

The code relying on this behavior was committed in June 2013
and included in 5.1.3alpha released on 2013-10-26. Clearly
the development releases only get limited testing.
2015-01-07 19:08:06 +02:00
Lasse Collin 6060f7dc76 Bump version and soname for 5.2.0.
I know that soname != app version, but I skip AGE=1
in -version-info to make the soname match the liblzma
version anyway. It doesn't hurt anything as long as
it doesn't conflict with library versioning rules.
2014-12-21 18:11:17 +02:00
Lasse Collin 2cb82ff21c Fix build when --disable-threads is used. 2014-12-21 18:00:38 +02:00
Lasse Collin 42e97a3264 xz: Fix a comment. 2014-12-21 14:07:54 +02:00
Lasse Collin 7f7d093de7 xz: Update the man page about --threads. 2014-12-16 21:00:09 +02:00
Lasse Collin 009823448b xz: Update the man page about --block-size. 2014-12-16 20:57:43 +02:00
Lasse Collin 1190c641af liblzma: Document how lzma_mt.block_size affects memory usage. 2014-12-02 20:04:07 +02:00
Lasse Collin 34f9e40a0a Remove LZMA_UNSTABLE macro. 2014-11-26 20:12:27 +02:00
Lasse Collin 6d9c0ce9f2 liblzma: Update lzma_stream_encoder_mt() API docs. 2014-11-26 20:10:33 +02:00
Lasse Collin 2301f3f05d liblzma: Verify the filter chain in threaded encoder initialization.
This way an invalid filter chain is detected at the Stream
encoder initialization instead of delaying it to the first
call to lzma_code() which triggers the initialization of
the actual filter encoder(s).
2014-11-25 12:32:05 +02:00
Lasse Collin 7b03a15cea xzdiff: Use mkdir if mktemp isn't available. 2014-11-10 18:54:40 +02:00
Lasse Collin f8c13e5e36 xzdiff: Create a temporary directory to hold a temporary file.
This avoids the possibility of "File name too long" when
creating a temp file when the input file name is very long.

This also means that other users on the system can no longer
see the input file names in /tmp (or whatever $TMPDIR is)
since the temporary directory will have a generic name. This
usually doesn't matter since on many systems one can see
the arguments given to all processes anyway.

The number X chars to mktemp where increased from 6 to 10.

Note that with some shells temp files or dirs won't be used at all.
2014-11-10 18:45:01 +02:00
Lasse Collin 7716dcf9df liblzma: Fix lzma_mt.preset in lzma_stream_encoder_mt_memusage().
It read the filter chain from a wrong variable. This is a similar
bug that was fixed in 9494fb6d0f.
2014-11-10 15:38:47 +02:00
Lasse Collin c923b140b2 Build: Prepare to support Automake's subdir-objects.
Due to a bug in Automake, subdir-objects won't be enabled
for now.

http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17354

Thanks to Daniel Richard G. for the original patches.
2014-10-29 21:15:35 +02:00
Lasse Collin 076258cc45 Add support for AmigaOS/AROS to tuklib_physmem().
Thanks to Fredrik Wikstrom.
2014-10-09 19:41:51 +03:00
Lasse Collin efa7b0a210 xzgrep: Avoid passing both -q and -l to grep.
The behavior of grep -ql varies:
  - GNU grep behaves like grep -q.
  - OpenBSD grep behaves like grep -l.

POSIX doesn't make it 100 % clear what behavior is expected.
Anyway, using both -q and -l at the same time makes no sense
so both options simply should never be used at the same time.

Thanks to Christian Weisgerber.
2014-10-09 18:42:14 +03:00
Lasse Collin d62028b4c1 liblzma: Fix a portability problem in Makefile.am.
POSIX supports $< only in inference rules (suffix rules).
Using it elsewhere is a GNU make extension and doesn't
work e.g. with OpenBSD make.

Thanks to Christian Weisgerber for the patch.
2014-09-20 19:42:56 +03:00
Lasse Collin c35de31d42 Bump the version number to 5.1.4beta. 2014-09-14 21:54:09 +03:00
Lasse Collin 6b5e3b9eff xz: Add --ignore-check. 2014-08-05 22:32:36 +03:00
Lasse Collin 9adbc2ff37 liblzma: Add support for LZMA_IGNORE_CHECK. 2014-08-05 22:15:07 +03:00
Lasse Collin 0e0f34b8e4 liblzma: Add support for lzma_block.ignore_check.
Note that this slightly changes how lzma_block_header_decode()
has been documented. Earlier it said that the .version is set
to the lowest required value, but now it says that the .version
field is kept unchanged if possible. In practice this doesn't
affect any old code, because before this commit the only
possible .version was 0.
2014-08-05 22:03:30 +03:00
Lasse Collin 71e1437ab5 liblzma: Use lzma_memcmplen() in the BT3 match finder.
I had missed this when writing the commit
5db75054e9.

Thanks to Jun I Jin.
2014-08-04 19:25:58 +03:00
Lasse Collin 5dcffdbcc2 liblzma: SHA-256: Optimize the Maj macro slightly.
The Maj macro is used where multiple things are added
together, so making Maj a sum of two expressions allows
some extra freedom for the compiler to schedule the
instructions.

I learned this trick from
<http://www.hackersdelight.org/corres.txt>.
2014-08-03 21:32:25 +03:00
Lasse Collin a9477d1e0c liblzma: SHA-256: Optimize the way rotations are done.
This looks weird because the rotations become sequential,
but it helps quite a bit on both 32-bit and 64-bit x86:

  - It requires fewer instructions on two-operand
    instruction sets like x86.

  - It requires one register less which matters especially
    on 32-bit x86.

I hope this doesn't hurt other archs.

I didn't invent this idea myself, but I don't remember where
I saw it first.
2014-08-03 21:08:12 +03:00
Lasse Collin 5a76c7c8ee liblzma: SHA-256: Remove the GCC #pragma that became unneeded.
The unrolling in the previous commit should avoid the
situation where a compiler may think that an uninitialized
variable might be accessed.
2014-08-03 20:38:13 +03:00
Lasse Collin 9a096f8e57 liblzma: SHA-256: Unroll a little more.
This way a branch isn't needed for each operation
to choose between blk0 and blk2, and still the code
doesn't grow as much as it would with full unrolling.
2014-08-03 20:33:38 +03:00
Lasse Collin bc7650d87b liblzma: SHA-256: Do the byteswapping without a temporary buffer. 2014-08-03 19:56:43 +03:00
Lasse Collin 544aaa3d13 liblzma: Use lzma_memcmplen() in normal mode of LZMA.
Two locations were not changed yet because the simplest change
assumes that the initial "len" may be greater than "limit".
2014-07-25 22:38:28 +03:00
Lasse Collin f48fce093b liblzma: Simplify LZMA fast mode code by using memcmp(). 2014-07-25 22:30:38 +03:00
Lasse Collin 6bf5308e34 liblzma: Use lzma_memcmplen() in fast mode of LZMA. 2014-07-25 22:29:49 +03:00
Lasse Collin 5db75054e9 liblzma: Use lzma_memcmplen() in the match finders.
This doesn't change the match finder output.
2014-07-25 21:15:07 +03:00
Lasse Collin e1c8f1d01f liblzma: Add lzma_memcmplen() for fast memory comparison.
This commit just adds the function. Its uses will be in
separate commits.

This hasn't been tested much yet and it's perhaps a bit early
to commit it but if there are bugs they should get found quite
quickly.

Thanks to Jun I Jin from Intel for help and for pointing out
that string comparison needs to be optimized in liblzma.
2014-07-25 20:57:20 +03:00
Lasse Collin 17215f751c xz: Update the help message of a few options.
Updated: --threads, --block-size, and --block-list
Added: --flush-timeout
2014-06-29 20:54:14 +03:00
Lasse Collin 96864a6ddf xz: Use lzma_cputhreads() instead of own copy of tuklib_cpucores(). 2014-06-18 22:07:06 +03:00
Lasse Collin a115cc3748 liblzma: Add lzma_cputhreads(). 2014-06-18 22:04:24 +03:00
Lasse Collin 3ce3e79769 xz: Check for filter chain compatibility for --flush-timeout.
This avoids LZMA_PROG_ERROR from lzma_code() with filter chains
that don't support LZMA_SYNC_FLUSH.
2014-06-18 19:11:52 +03:00
Lasse Collin ceca379017 xzgrep: exit 0 when at least one file matches.
Mimic the original grep behavior and return exit_success when
at least one xz compressed file matches given pattern.

Original bugreport:
https://bugzilla.redhat.com/show_bug.cgi?id=1108085

Thanks to Pavel Raiskup for the patch.
2014-06-11 20:43:28 +03:00
Lasse Collin 8c19216bac xz: Force single-threaded mode when --flush-timeout is used. 2014-06-09 21:21:24 +03:00
Lasse Collin da1718f266 liblzma: Use lzma_alloc_zero() in LZ encoder initialization.
This avoids a memzero() call for a newly-allocated memory,
which can be expensive when encoding small streams with
an over-sized dictionary.

To avoid using lzma_alloc_zero() for memory that doesn't
need to be zeroed, lzma_mf.son is now allocated separately,
which requires handling it separately in normalize() too.

Thanks to Vincenzo Innocente for reporting the problem.
2014-05-25 21:45:56 +03:00
Lasse Collin 28af24e9cf liblzma: Add the internal function lzma_alloc_zero(). 2014-05-25 19:25:57 +03:00
Lasse Collin ed9ac85822 xz: Fix uint64_t vs. size_t which broke 32-bit build.
Thanks to Christian Hesse.
2014-05-08 18:03:09 +03:00
Lasse Collin 4d5b7b3fda liblzma: Rename the private API header lzma/lzma.h to lzma/lzma12.h.
It can be confusing that two header files have the same name.
The public API file is still lzma.h.
2014-05-04 11:07:17 +03:00
Lasse Collin 1555a9c566 Build: Fix the combination of --disable-xzdec --enable-lzmadec.
In this case "make install" could fail if the man page directory
didn't already exist at the destination. If it did exist, a
dangling symlink was created there. Now the link is omitted
instead. This isn't the best fix but it's better than the old
behavior.
2014-04-25 17:53:42 +03:00
Lasse Collin 54df428799 xz: Rename a variable to avoid a namespace collision on Solaris.
I don't know the details but I have an impression that there's
no problem in practice if using GCC since people have built xz
with GCC (without patching xz), but renaming the variable cannot
hurt either.

Thanks to Mark Ashley.
2014-04-09 17:26:10 +03:00
Lasse Collin 9494fb6d0f liblzma: Fix lzma_mt.preset not working with lzma_stream_encoder_mt().
It read the filter chain from a wrong variable.
2014-01-29 20:13:51 +02:00
Lasse Collin 673a4cb53d liblzma: Fix typo in a comment. 2014-01-20 11:20:40 +02:00
Lasse Collin 3d5c090872 xz: Fix a comment. 2014-01-12 17:41:14 +02:00
Lasse Collin 69fd4e1c93 Windows: Add MSVC defines for inline and restrict keywords. 2014-01-12 17:04:33 +02:00
Lasse Collin a19d9e8575 liblzma: Avoid C99 compound literal arrays.
MSVC 2013 doesn't like them. Maybe they aren't so good
for readability either since many aren't used to them.
2014-01-12 16:44:52 +02:00
Lasse Collin e28528f1c8 liblzma: Remove a useless C99ism from sha256.c.
Unsurprisingly it makes no difference in compiled output.
2014-01-12 12:50:30 +02:00
Lasse Collin 5ad1effc45 xz: Fix use of wrong variable.
Since the only call to suffix_set() uses optarg
as the argument, fixing this bug doesn't change
the behavior of the program.
2014-01-12 12:17:08 +02:00
Lasse Collin 3e62c68d75 Fix typos in comments. 2014-01-12 12:11:36 +02:00
Lasse Collin b22e94d8d1 liblzma: Document the need for block->check for lzma_block_header_decode().
Thanks to Tomer Chachamu.
2013-11-26 18:20:09 +02:00
Lasse Collin d1cd8b1cb8 xz: Update the man page about --block-size and --block-list. 2013-11-12 16:38:57 +02:00
Lasse Collin dd750acbe2 xz: Make --block-list and --block-size work together in single-threaded.
Previously, --block-list and --block-size only worked together
in threaded mode. Boundaries are specified by --block-list, but
--block-size specifies the maximum size for a Block. Now this
works in single-threaded mode too.

Thanks to James M Leddy for the original patch.
2013-11-12 16:29:48 +02:00
Lasse Collin ae222fe980 Bump the version number to 5.1.3alpha. 2013-10-26 13:26:14 +03:00
Lasse Collin 841da0352d xz: Document behavior of --block-list with threads.
This needs to be updated before 5.2.0.
2013-10-25 22:41:28 +03:00
Lasse Collin 56feb8665b xz: Document --flush-timeout=TIMEOUT on the man page. 2013-10-22 20:03:12 +03:00
Lasse Collin ba413da1d5 xz: Take advantage of LZMA_FULL_BARRIER with --block-list.
Now if --block-list is used in threaded mode, the encoder
won't need to flush at each Block boundary specified via
--block-list. This improves performance a lot, making
threading helpful with --block-list.

The flush timer was reset after LZMA_FULL_FLUSH but since
LZMA_FULL_BARRIER doesn't flush, resetting the timer is
no longer done.
2013-10-22 19:51:55 +03:00
Lasse Collin 0cd45fc2bc liblzma: Support LZMA_FULL_FLUSH and _BARRIER in threaded encoder.
Now --block-list=SIZES works with in the threaded mode too,
although the performance is still bad due to the use of
LZMA_FULL_FLUSH instead of the new LZMA_FULL_BARRIER.
2013-10-02 20:05:23 +03:00
Lasse Collin 97bb38712f liblzma: Add LZMA_FULL_BARRIER support to single-threaded encoder.
In the single-threaded encoder LZMA_FULL_BARRIER is simply
an alias for LZMA_FULL_FLUSH.
2013-10-02 12:55:11 +03:00
Lasse Collin fef0c6b410 liblzma: Add block_buffer_encoder.h into Makefile.inc.
This should have been in b465da5988.
2013-09-17 11:57:51 +03:00
Lasse Collin 8083e03291 xz: Add a missing test for TUKLIB_DOSLIKE. 2013-09-17 11:55:38 +03:00
Lasse Collin 6b44b4a775 Add native threading support on Windows.
Now liblzma only uses "mythread" functions and types
which are defined in mythread.h matching the desired
threading method.

Before Windows Vista, there is no direct equivalent to
pthread condition variables. Since this package doesn't
use pthread_cond_broadcast(), pre-Vista threading can
still be kept quite simple. The pre-Vista code doesn't
use anything that wasn't already available in Windows 95,
so the binaries should run even on Windows 95 if someone
happens to care.
2013-09-17 11:52:28 +03:00
Lasse Collin 72975df6c8 Build: Create liblzma.pc in a src/liblzma/Makefile.am.
Previously it was done in configure, but doing that goes
against the Autoconf manual. Autoconf requires that it is
possible to override e.g. prefix after running configure
and that doesn't work correctly if liblzma.pc is created
by configure.

A potential downside of this change is that now e.g.
libdir in liblzma.pc is a standalone string instead of
being defined via ${prefix}, so if one overrides prefix
when running pkg-config the libdir won't get the new value.
I don't know if this matters in practice.

Thanks to Vincent Torri.
2013-09-09 20:37:03 +03:00
Lasse Collin 1c2b6e7e83 Fix the previous commit which broke the build.
Apparently I didn't even compile-test the previous commit.

Thanks to Christian Hesse.
2013-08-04 15:24:09 +03:00
Lasse Collin 124eb69c78 Windows: Add Windows support to tuklib_cpucores().
It is used for Cygwin too. I'm not sure if that is
a good or bad idea.

Thanks to Vincent Torri.
2013-08-03 13:52:58 +03:00
Lasse Collin dee6ad3d59 xz: Add preliminary support for --flush-timeout=TIMEOUT.
When --flush-timeout=TIMEOUT is used, xz will use
LZMA_SYNC_FLUSH if read() would block and at least
TIMEOUT milliseconds has elapsed since the previous flush.

This can be useful in realtime-like use cases where the
data is simultanously decompressed by another process
(possibly on a different computer). If new uncompressed
input data is produced slowly, without this option xz could
buffer the data for a long time until it would become
decompressible from the output.

If TIMEOUT is 0, the feature is disabled. This is the default.

This commit affects the compression side. Using xz for
the decompression side for the above purpose doesn't work
yet so well because there is quite a bit of input and
output buffering when decompressing.

The --long-help or man page were not updated yet.
The details of this feature may change.
2013-07-04 14:18:46 +03:00
Lasse Collin fa381acaf9 xz: Don't set src_eof=true after an I/O error because it's useless. 2013-07-04 13:41:03 +03:00
Lasse Collin ea00545bea xz: Fix the test when to read more input.
Testing for end of file was no longer correct after full flushing
became possible with --block-size=SIZE and --block-list=SIZES.
There was no bug in practice though because xz just made a few
unneeded zero-byte reads.
2013-07-04 13:25:11 +03:00
Lasse Collin 736903c64b xz: Move some of the timing code into mytime.[hc].
This switches units from microseconds to milliseconds.

New clock_gettime(CLOCK_MONOTONIC) will be used if available.
There is still a fallback to gettimeofday().
2013-07-04 12:51:57 +03:00
Lasse Collin c0627b3fce xz: Silence a warning seen with _FORTIFY_SOURCE=2.
Thanks to Christian Hesse.
2013-07-01 14:34:11 +03:00
Lasse Collin a37ae8b5eb Man pages: Use similar syntax for synopsis as in xz.
The man pages of lzmainfo, xzmore, and xzdec had similar
constructs as the man page of xz had before the commit
eb6ca9854b. Eric S. Raymond
didn't mention these man pages in his bug report, but
it's nice to be consistent.
2013-06-30 18:02:27 +03:00
Lasse Collin cdba9ddd87 xz: Use non-blocking I/O for the output file.
Now both reading and writing should be without
race conditions with signals.

They might still be signal handling issues left.
Signals are blocked during many operations to avoid
EINTR but it may cause problems e.g. if writing to
stderr blocks when trying to display an error message.
2013-06-29 15:59:13 +03:00