Commit Graph

828 Commits

Author SHA1 Message Date
Lasse Collin b3ed19a55f liblzma: Remove unneeded <sys/types.h> from fastpos_tablegen.c.
This file only generates fastpos_table.c.
It isn't built as a part of liblzma.
2020-02-24 23:23:18 +02:00
Lasse Collin 7b8982b291 Use defined(__GNUC__) before __GNUC__ in preprocessor lines.
This should silence the equivalent of -Wundef in compilers that
don't define __GNUC__.
2020-02-22 14:15:07 +02:00
Lasse Collin 43dfe04e62 liblzma: Add more uses of lzma_memcmplen() to the normal mode of LZMA.
This gives a tiny encoder speed improvement. This could have been done
in 2014 after the commit 544aaa3d13 but
it was forgotten.
2020-02-21 17:40:02 +02:00
Lasse Collin 7fe3ef2eaa xz: Silence a warning when sig_atomic_t is long int.
It can be true at least on z/OS.
2020-02-21 16:10:44 +02:00
Lasse Collin b0a2a77d10 xz: Avoid unneeded access of a volatile variable. 2020-02-21 15:59:26 +02:00
Lasse Collin 57360bb4fd tuklib_exit: Add missing header.
strerror() needs <string.h> which happened to be included via
tuklib_common.h -> tuklib_config.h -> sysdefs.h if HAVE_CONFIG_H
was defined. This wasn't tested without config.h before so it
had worked fine.
2020-02-20 18:54:04 +02:00
Lasse Collin fddd31175e Revert the previous commit and add a comment.
The previous commit broke crc32_tablegen.c.

If the whole package is built without config.h (with defines
set on the compiler command line) this should still work fine
as long as these headers conform to C99 well enough.
2020-02-18 19:12:35 +02:00
Lasse Collin 4e4e9fbb7e Do not check for HAVE_CONFIG_H in tuklib_config.h.
In XZ Utils sysdefs.h takes care of it and the required headers.
2020-02-17 23:37:20 +02:00
Lasse Collin 2d4cef954f sysdefs.h: Omit the conditionals around string.h and limits.h.
string.h is used unconditionally elsewhere in the project and
configure has always stopped if limits.h is missing, so these
headers must have been always available even on the weirdest
systems.
2020-02-16 12:24:13 +02:00
Lasse Collin 6f7211b6bb Build: Add support for translated man pages using po4a.
The dependency on po4a is optional. It's never required to install
the translated man pages when xz is built from a release tarball.
If po4a is missing when building from xz.git, the translated man
pages won't be generated but otherwise the build will work normally.

The translations are only updated automatically by autogen.sh and
by "make mydist". This makes it easy to keep po4a as an optional
dependency and ensures that I won't forget to put updated
translations to a release tarball.

The translated man pages aren't installed if --disable-nls is used.

The installation of translated man pages abuses Automake internals
by calling "install-man" with redefined dist_man_MANS and man_MANS.
This makes the hairy script code slightly less hairy. If it breaks
some day, this code needs to be fixed; don't blame Automake developers.

Also, this adds more quotes to the existing shell script code in
the Makefile.am "-hook"s.
2020-02-07 15:32:21 +02:00
Lasse Collin 15a133b6d1 xz: Make it a fatal error if enabling the sandbox fails.
Perhaps it's too drastic but on the other hand it will let me
learn about possible problems if people report the errors.
This won't be backported to the v5.2 branch.
2020-02-05 20:40:14 +02:00
Lasse Collin af0fb386ef xz: Comment out annoying sandboxing messages. 2020-02-05 20:33:50 +02:00
Lasse Collin 3539705108 xz: Limit --memlimit-compress to at most 4020 MiB for 32-bit xz.
See the code comment for reasoning. It's far from perfect but
hopefully good enough for certain cases while hopefully doing
nothing bad in other situations.

At presets -5 ... -9, 4020 MiB vs. 4096 MiB makes no difference
on how xz scales down the number of threads.

The limit has to be a few MiB below 4096 MiB because otherwise
things like "xz --lzma2=dict=500MiB" won't scale down the dict
size enough and xz cannot allocate enough memory. With
"ulimit -v $((4096 * 1024))" on x86-64, the limit in xz had
to be no more than 4085 MiB. Some safety margin is good though.

This is hack but it should be useful when running 32-bit xz on
a 64-bit kernel that gives full 4 GiB address space to xz.
Hopefully this is enough to solve this:

https://bugzilla.redhat.com/show_bug.cgi?id=1196786

FreeBSD has a patch that limits the result in tuklib_physmem()
to SIZE_MAX on 32-bit systems. While I think it's not the way
to do it, the results on --memlimit-compress have been good. This
commit should achieve practically identical results for compression
while leaving decompression and tuklib_physmem() and thus
lzma_physmem() unaffected.
2020-02-01 19:56:18 +02:00
Lasse Collin ba76d67585 xz: Set the --flush-timeout deadline when the first input byte arrives.
xz --flush-timeout=2000, old version:

  1. xz is started. The next flush will happen after two seconds.
  2. No input for one second.
  3. A burst of a few kilobytes of input.
  4. No input for one second.
  5. Two seconds have passed and flushing starts.

The first second counted towards the flush-timeout even though
there was no pending data. This can cause flushing to occur more
often than needed.

xz --flush-timeout=2000, after this commit:

  1. xz is started.
  2. No input for one second.
  3. A burst of a few kilobytes of input. The next flush will
     happen after two seconds counted from the time when the
     first bytes of the burst were read.
  4. No input for one second.
  5. No input for another second.
  6. Two seconds have passed and flushing starts.
2020-01-26 20:53:25 +02:00
Lasse Collin fd47fd62bb xz: Move flush_needed from mytime.h to file_pair struct in file_io.h. 2020-01-26 20:25:52 +02:00
Lasse Collin 8150356810 xz: coder.c: Make writing output a separate function.
The same code sequence repeats so it's nicer as a separate function.
Note that in one case there was no test for opt_mode != MODE_TEST,
but that was only because that condition would always be true, so
this commit doesn't change the behavior there.
2020-01-26 14:49:22 +02:00
Lasse Collin 5a49e081a0 xz: Fix semi-busy-waiting in xz --flush-timeout.
When input blocked, xz --flush-timeout=1 would wake up every
millisecond and initiate flushing which would have nothing to
flush and thus would just waste CPU time. The fix disables the
timeout when no input has been seen since the previous flush.
2020-01-26 14:13:42 +02:00
Lasse Collin dcca70fe9f xz: Refactor io_read() a bit. 2020-01-26 13:47:31 +02:00
Lasse Collin 4ae9ab70cd xz: Update a comment in file_io.h. 2020-01-26 13:37:08 +02:00
Lasse Collin 3333ba4a67 xz: Move the setting of flush_needed in file_io.c to a nicer location. 2020-01-26 13:27:51 +02:00
Lasse Collin 7136f1735c Rename unaligned_read32ne to read32ne, and similarly for the others. 2019-12-31 00:47:49 +02:00
Lasse Collin 5e78fcbf2e Rename read32ne to aligned_read32ne, and similarly for the others.
Using the aligned methods requires more care to ensure that
the address really is aligned, so it's nicer if the aligned
methods are prefixed. The next commit will remove the unaligned_
prefix from the unaligned methods which in liblzma are used in
more places than the aligned ones.
2019-12-31 00:29:48 +02:00
Lasse Collin 77bc5bc6dd Revise tuklib_integer.h and .m4.
Add a configure option --enable-unsafe-type-punning to get the
old non-conforming memory access methods. It can be useful with
old compilers or in some other less typical situations but
shouldn't normally be used.

Omit the packed struct trick for unaligned access. While it's
best in some cases, this is simpler. If the memcpy trick doesn't
work, one can request unsafe type punning from configure.

Because CRC32/CRC64 code needs fast aligned reads, if no very
safe way to do it is found, type punning is used as a fallback.
This sucks but since it currently works in practice, it seems to
be the least bad option. It's never needed with GCC >= 4.7 or
Clang >= 3.6 since these support __builtin_assume_aligned and
thus fast aligned access can be done with the memcpy trick.

Other things:
  - Support GCC/Clang __builtin_bswapXX
  - Cleaner bswap fallback macros
  - Minor cleanups
2019-12-31 00:18:24 +02:00
Lasse Collin 43ce4ea7c7 Scripts: Put /usr/xpg4/bin to the beginning of PATH on Solaris.
This adds a configure option --enable-path-for-scripts=PREFIX
which defaults to empty except on Solaris it is /usr/xpg4/bin
to make POSIX grep and others available. The Solaris case had
been documented in INSTALL with a manual fix but it's better
to do this automatically since it is needed on most Solaris
systems anyway.

Thanks to Daniel Richard G.
2019-09-24 23:02:40 +03:00
Lasse Collin 6a89e656eb Fix comment typos in tuklib_mbstr* files. 2019-07-12 18:57:43 +03:00
Lasse Collin ac0b421265 Add missing include to tuklib_mbstr_width.c.
It didn't matter in XZ Utils because sysdefs.h
includes string.h anyway.
2019-07-12 18:30:46 +03:00
Lasse Collin 72a443281f Update tuklib base headers to include stdbool.h. 2019-07-12 18:10:57 +03:00
Lasse Collin de1f47b2b4 xz: Automatically align the strings in --info-memory.
This makes it easier to translate the strings.

Also, the string for amount of RAM was shortened.
2019-06-28 00:54:31 +03:00
Lasse Collin 8ce679125d liblzma: Fix a buggy comment. 2019-06-25 23:15:21 +03:00
Lasse Collin d499e467d9 liblzma: Add a comment. 2019-06-24 23:52:17 +03:00
Lasse Collin a12b13c5f0 liblzma: Silence clang -Wmissing-variable-declarations. 2019-06-24 23:45:21 +03:00
Lasse Collin 1b4675cebf Add LZMA_RET_INTERNAL1..8 to lzma_ret and use one for LZMA_TIMED_OUT.
LZMA_TIMED_OUT is *internally* used as a value for lzma_ret
enumeration. Previously it was #defined to 32 and cast to lzma_ret.
That way it wasn't visible in the public API, but this was hackish.

Now the public API has eight LZMA_RET_INTERNALx members and
LZMA_TIMED_OUT is #defined to LZMA_RET_INTERNAL1. This way
the code is cleaner overall although the public API has a few
extra mysterious enum members.
2019-06-24 23:25:41 +03:00
Lasse Collin 159c43875e xz: Silence a warning from clang -Wsign-conversion in main.c. 2019-06-24 22:57:43 +03:00
Lasse Collin 466cfcd3e5 xz: Make "headings" static in list.c.
Caught by clang -Wmissing-variable-declarations.
2019-06-24 22:52:20 +03:00
Lasse Collin 608517b9b7 liblzma: Remove incorrect uses of lzma_attribute((__unused__)).
Caught by clang -Wused-but-marked-unused.
2019-06-24 22:50:36 +03:00
Lasse Collin 2402f7873d xz: Fix an integer overflow with 32-bit off_t.
Or any off_t which isn't very big (like signed 64 bit integer
that most system have). A small off_t could overflow if the
file being decompressed had long enough run of zero bytes,
which would result in corrupt output.
2019-06-24 20:45:49 +03:00
Lasse Collin 4fd3a8dd0b xz: Cleanup io_seek_src() a bit.
lseek() returns -1 on error and checking for -1 is nicer.
2019-06-24 01:24:17 +03:00
Lasse Collin 1d4a904d8f xz: Change io_seek_src and io_pread arguments from off_t to uint64_t.
This helps fixing warnings from -Wsign-conversion and makes the
code look better too.
2019-06-24 00:40:45 +03:00
Lasse Collin 50120deb01 xz: list.c: Fix some warnings from -Wsign-conversion. 2019-06-24 00:12:38 +03:00
Lasse Collin d0a78751eb tuklib_mbstr_width: Fix a warning from -Wsign-conversion. 2019-06-23 23:22:45 +03:00
Lasse Collin 7883d73530 xz: Fix some of the warnings from -Wsign-conversion. 2019-06-23 23:19:34 +03:00
Lasse Collin c2b994fe3d tuklib_cpucores: Silence warnings from -Wsign-conversion. 2019-06-23 22:27:45 +03:00
Lasse Collin 07c4fa9e1a xzdec: Fix warnings from -Wsign-conversion. 2019-06-23 21:40:47 +03:00
Lasse Collin dfac2c9a1d liblzma: Fix warnings from -Wsign-conversion.
Also, more parentheses were added to the literal_subcoder
macro in lzma_comon.h (better style but no functional change
in the current usage).
2019-06-23 21:38:56 +03:00
Lasse Collin 41838dcc26 tuklib_integer: Silence warnings from -Wsign-conversion. 2019-06-23 19:33:55 +03:00
Lasse Collin 3ce05d235f tuklib_integer: Fix usage of conv macros.
Use a temporary variable instead of e.g.
conv32le(unaligned_read32ne(buf)) because the macro can
evaluate its argument multiple times.
2019-06-20 19:40:30 +03:00
Lasse Collin 039a168e8c liblzma: Fix comments.
Thanks to Bruce Stark.
2019-06-03 20:41:54 +03:00
Lasse Collin c460f6defe liblzma: Fix one more unaligned read to use unaligned_read16ne(). 2019-06-02 00:50:59 +03:00
Lasse Collin 386394fc9f liblzma: memcmplen: Use ctz32() from tuklib_integer.h.
The same compiler-specific #ifdefs are already in tuklib_integer.h
2019-06-01 21:36:13 +03:00
Lasse Collin 264ab971ce tuklib_integer: Cleanup MSVC-specific code. 2019-06-01 21:30:03 +03:00
Lasse Collin 33773c6f2a liblzma: Use unaligned_readXXne functions instead of type punning.
Now gcc -fsanitize=undefined should be clean.

Thanks to Jeffrey Walton.
2019-06-01 19:01:21 +03:00
Lasse Collin 3bc112c2d3 tuklib_integer: Improve unaligned memory access.
Now memcpy() or GNU C packed structs for unaligned access instead
of type punning. See the comment in this commit for details.

Avoiding type punning with unaligned access is needed to
silence gcc -fsanitize=undefined.

New functions: unaliged_readXXne and unaligned_writeXXne where
XX is 16, 32, or 64.
2019-06-01 18:41:16 +03:00
Lasse Collin 2a22de439e liblzma: Avoid memcpy(NULL, foo, 0) because it is undefined behavior.
I should have always known this but I didn't. Here is an example
as a reminder to myself:

    int mycopy(void *dest, void *src, size_t n)
    {
        memcpy(dest, src, n);
        return dest == NULL;
    }

In the example, a compiler may assume that dest != NULL because
passing NULL to memcpy() would be undefined behavior. Testing
with GCC 8.2.1, mycopy(NULL, NULL, 0) returns 1 with -O0 and -O1.
With -O2 the return value is 0 because the compiler infers that
dest cannot be NULL because it was already used with memcpy()
and thus the test for NULL gets optimized out.

In liblzma, if a null-pointer was passed to memcpy(), there were
no checks for NULL *after* the memcpy() call, so I cautiously
suspect that it shouldn't have caused bad behavior in practice,
but it's hard to be sure, and the problematic cases had to be
fixed anyway.

Thanks to Jeffrey Walton.
2019-05-13 20:05:17 +03:00
Lasse Collin 4adb8288ab xz: Update xz man page date. 2019-05-11 20:54:12 +03:00
Antoine Cœur 2fb0ddaa55 spelling 2019-05-11 20:52:37 +03:00
Lasse Collin 4ed3396061 xz: In xz -lvv look at the widths of the check names too.
Now the widths of the check names is used to adjust the width
of the Check column. This way there no longer is a need to restrict
the widths of the check names to be at most ten terminal-columns.
2019-05-01 18:43:10 +03:00
Lasse Collin 2f4281a100 xz: Fix xz -lvv column alignment to look at the translated strings. 2019-05-01 18:33:25 +03:00
Lasse Collin a750c35a7d xz: Automatically align column headings in xz -lvv. 2019-03-04 21:20:39 +02:00
Lasse Collin 6cb42e8aa1 xz: Automatically align strings ending in a colon in --list output.
This should avoid alignment errors in translations with these
strings.
2019-03-04 21:16:59 +02:00
Lasse Collin b55d79461d xz: Fix a crash in progress indicator when in passthru mode.
"xz -dcfv not_an_xz_file" crashed (all four options are
required to trigger it). It caused xz to call
lzma_get_progress(&strm, ...) when no coder was initialized
in strm. In this situation strm.internal is NULL which leads
to a crash in lzma_get_progress().

The bug was introduced when xz started using lzma_get_progress()
to get progress info for multi-threaded compression, so the
bug is present in versions 5.1.3alpha and higher.

Thanks to Filip Palian <Filip.Palian@pjwstk.edu.pl> for
the bug report.
2018-12-20 20:39:20 +02:00
Lasse Collin 4ae5526de0 xz: Update man page timestamp. 2018-11-22 17:20:31 +02:00
Pavel Raiskup 6a36d0d5f4 'have have' typos 2018-11-22 17:19:09 +02:00
Lasse Collin a18ae42a79 liblzma: Don't verify header CRC32s if building for fuzz testing.
FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION is #defined when liblzma
is being built for fuzz testing.

Most fuzzed inputs would normally get rejected because of incorrect
CRC32 and the actual header decoding code wouldn't get fuzzed.
Disabling CRC32 checks avoids this problem. The fuzzer program
must still use LZMA_IGNORE_CHECK flag to disable verification of
integrity checks of uncompressed data.
2018-10-26 22:49:10 +03:00
Lasse Collin f76f7516d6 xzless: Rename unused variables to silence static analysers.
In this particular case I don't see this affecting readability
of the code.

Thanks to Pavel Raiskup.
2018-07-27 18:10:44 +03:00
Lasse Collin 3cbcaeb07e liblzma: Remove an always-true condition from lzma_index_cat().
This should help static analysis tools to see that newg
isn't leaked.

Thanks to Pavel Raiskup.
2018-07-27 16:02:58 +03:00
Lasse Collin 76762ae609 liblzma: Improve lzma_properties_decode() API documentation. 2018-05-19 21:23:25 +03:00
Lasse Collin 2267f5b0d2 Bump the version number to 5.3.1alpha. 2018-04-29 18:58:19 +03:00
Ben Boeckel bc19799169 nothrow: use noexcept for C++11 and newer
In C++11, the `throw()` specifier is deprecated and `noexcept` is
preffered instead.
2018-02-06 18:41:45 +02:00
Lasse Collin fb6d4f83cb liblzma: Remove incorrect #ifdef from range_common.h.
In most cases it was harmless but it could affect some
custom build systems.

Thanks to Pippijn van Steenhoven.
2018-02-06 18:02:48 +02:00
Lasse Collin 713bbc1a80 tuklib_integer: New Intel C compiler needs immintrin.h.
Thanks to Melanie Blower (Intel) for the patch.
2018-01-10 21:54:27 +02:00
Lasse Collin 94e3f986aa Fix or hide warnings from GCC 7's -Wimplicit-fallthrough. 2017-08-14 20:08:33 +03:00
Lasse Collin a015cd1f90 xz: Fix "xz --list --robot missing_or_bad_file.xz".
It ended up printing an uninitialized char-array when trying to
print the check names (column 7) on the "totals" line.

This also changes the column 12 (minimum xz version) to
50000002 (xz 5.0.0) instead of 0 when there are no valid
input files.

Thanks to kidmin for the bug report.
2017-05-23 18:34:43 +03:00
Lasse Collin 8269782283 xz: Use lzma_file_info_decoder() for --list. 2017-04-24 19:48:23 +03:00
Lasse Collin e353d0b1cc liblzma: Add lzma_file_info_decoder(). 2017-04-24 19:48:04 +03:00
Lasse Collin 8c9842c265 liblzma: Rename LZMA_SEEK to LZMA_SEEK_NEEDED and seek_in to seek_pos. 2017-04-21 15:05:16 +03:00
Lasse Collin 662b27c417 Update the home page URLs to HTTPS. 2017-04-19 22:17:35 +03:00
Lasse Collin c28f0b3d00 xz: Add io_seek_src(). 2017-04-05 18:47:22 +03:00
Lasse Collin bba477257d xz: Use POSIX_FADV_RANDOM for in "xz --list" mode.
xz --list is random access so POSIX_FADV_SEQUENTIAL was clearly
wrong.
2017-03-30 22:01:54 +03:00
Lasse Collin 310d19816d liblzma: Make lzma_index_decoder_init() visible to other liblzma funcs.
This is to allow other functions to use it without going
via the public API (lzma_index_decoder()).
2017-03-30 20:03:05 +03:00
Lasse Collin a27920002d liblzma: Add generic support for input seeking (LZMA_SEEK).
Also mention LZMA_SEEK in xz/message.c to silence a warning.
2017-03-30 20:00:09 +03:00
Lasse Collin a0b1dda409 liblzma: Fix lzma_memlimit_set(strm, 0).
The 0 got treated specially in a buggy way and as a result
the function did nothing. The API doc said that 0 was supposed
to return LZMA_PROG_ERROR but it didn't.

Now 0 is treated as if 1 had been specified. This is done because
0 is already used to indicate an error from lzma_memlimit_get()
and lzma_memusage().

In addition, lzma_memlimit_set() no longer checks that the new
limit is at least LZMA_MEMUSAGE_BASE. It's counter-productive
for the Index decoder and was actually needed only by the
auto decoder. Auto decoder has now been modified to check for
LZMA_MEMUSAGE_BASE.
2017-03-30 19:51:14 +03:00
Lasse Collin 84462afaad liblzma: Similar memlimit fix for stream_, alone_, and auto_decoder. 2017-03-30 19:16:55 +03:00
Lasse Collin cbc7401793 liblzma: Fix handling of memlimit == 0 in lzma_index_decoder().
It returned LZMA_PROG_ERROR, which was done to avoid zero as
the limit (because it's a special value elsewhere), but using
LZMA_PROG_ERROR is simply inconvenient and can cause bugs.

The fix/workaround is to treat 0 as if it were 1 byte. It's
effectively the same thing. The only weird consequence is
that then lzma_memlimit_get() will return 1 even when 0 was
specified as the limit.

This fixes a very rare corner case in xz --list where a specific
memory usage limit and a multi-stream file could print the
error message "Internal error (bug)" instead of saying that
the memory usage limit is too low.
2017-03-30 19:10:55 +03:00
Lasse Collin d4a0462abe liblzma: Avoid multiple definitions of lzma_coder structures.
Only one definition was visible in a translation unit.
It avoided a few casts and temp variables but seems that
this hack doesn't work with link-time optimizations in compilers
as it's not C99/C11 compliant.

Fixes:
http://www.mail-archive.com/xz-devel@tukaani.org/msg00279.html
2016-11-21 20:24:50 +02:00
Lasse Collin df8f446e3a tuklib_cpucores: Add support for sched_getaffinity().
It's available in glibc (GNU/Linux, GNU/kFreeBSD). It's better
than sysconf(_SC_NPROCESSORS_ONLN) because sched_getaffinity()
gives the number of cores available to the process instead of
the total number of cores online.

As a side effect, this commit fixes a bug on GNU/kFreeBSD where
configure would detect the FreeBSD-specific cpuset_getaffinity()
but it wouldn't actually work because on GNU/kFreeBSD it requires
using -lfreebsd-glue when linking. Now the glibc-specific function
will be used instead.

Thanks to Sebastian Andrzej Siewior for the original patch
and testing.
2016-10-24 18:51:36 +03:00
Lasse Collin 446e4318fa xz: Fix copying of timestamps on Windows.
xz used to call utime() on Windows, but its result gets lost
on close(). Using _futime() seems to work.

Thanks to Martok for reporting the bug:
http://www.mail-archive.com/xz-devel@tukaani.org/msg00261.html
2016-06-30 20:27:36 +03:00
Lasse Collin 1b0ac0c53c xz: Silence warnings from -Wlogical-op.
Thanks to Evan Nemerson.
2016-06-16 22:46:02 +03:00
Lasse Collin c83b7a0334 Build: Fix = to += for xz_SOURCES in src/xz/Makefile.am.
Thanks to Christian Kujau.
2016-04-10 20:55:49 +03:00
Lasse Collin ac398c3baf liblzma: Disable external SHA-256 by default.
This is the sane thing to do. The conflict with OpenSSL
on some OSes and especially that the OS-provided versions
can be significantly slower makes it clear that it was
a mistake to have the external SHA-256 support enabled by
default.

Those who want it can now pass --enable-external-sha256 to
configure. INSTALL was updated with notes about OSes where
this can be a bad idea.

The SHA-256 detection code in configure.ac had some bugs that
could lead to a build failure in some situations. These were
fixed, although it doesn't matter that much now that the
external SHA-256 is disabled by default.

MINIX >= 3.2.0 uses NetBSD's libc and thus has SHA256_Init
in libc instead of libutil. Support for the libutil version
was removed.
2016-03-13 20:21:49 +02:00
Lasse Collin faf302137e tuklib_physmem: Hopefully silence a warning on Windows. 2015-11-08 20:16:10 +02:00
Lasse Collin 14115f84a3 liblzma: Make Valgrind happier with optimized (gcc -O2) liblzma.
When optimizing, GCC can reorder code so that an uninitialized
value gets used in a comparison, which makes Valgrind unhappy.
It doesn't happen when compiled with -O0, which I tend to use
when running Valgrind.

Thanks to Rich Prohaska. I remember this being mentioned long
ago by someone else but nothing was done back then.
2015-11-04 23:14:00 +02:00
Lasse Collin f4c95ba94b liblzma: Rename lzma_presets.c back to lzma_encoder_presets.c.
It would be too annoying to update other build systems
just because of this.
2015-11-03 20:55:45 +02:00
Lasse Collin cb3111e3ed xz: Make xz buildable even when encoders or decoders are disabled.
The patch is quite long but it's mostly about adding new #ifdefs
to omit code when encoders or decoders have been disabled.

This adds two new #defines to config.h: HAVE_ENCODERS and
HAVE_DECODERS.
2015-11-03 20:29:33 +02:00
Lasse Collin 4cc584985c Build: Build LZMA1/2 presets also when only decoder is wanted.
People shouldn't rely on the presets when decoding raw streams,
but xz uses the presets as the starting point for raw decoder
options anyway.

lzma_encocder_presets.c was renamed to lzma_presets.c to
make it clear it's not used solely by the encoder code.
2015-11-03 18:06:40 +02:00
Lasse Collin b0bc3e0385 Build: Don't omit lzma_cputhreads() unless using --disable-threads.
Previously it was omitted if encoders were disabled
with --disable-encoders. It didn't make sense and
it also broke the build.
2015-11-03 17:41:54 +02:00
Lasse Collin c6bf438ab3 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.
2015-11-02 18:16:51 +02:00
Lasse Collin e18adc56f2 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.
2015-11-02 15:19:10 +02:00
Lasse Collin 21515d79d7 liblzma: Fix lzma_index_dup() for empty Streams.
Stream Flags and Stream Padding weren't copied from
empty Streams.
2015-10-12 20:45:15 +03:00
Lasse Collin 09f395b6b3 liblzma: Add a note to index.c for those using static analyzers. 2015-10-12 20:31:44 +03:00
Lasse Collin 3bf857edfe liblzma: Fix a memory leak in error path of lzma_index_dup().
lzma_index_dup() calls index_dup_stream() which, in case of
an error, calls index_stream_end() to free memory allocated
by index_stream_init(). However, it illogically didn't
actually free the memory. To make it logical, the tree
handling code was modified a bit in addition to changing
index_stream_end().

Thanks to Evan Nemerson for the bug report.
2015-10-12 20:29:09 +03:00