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2009-11-22Add missing consts to pointer casts.Lasse Collin2-4/+5
2009-10-04Use a tuklib module for integer handling.Lasse Collin7-35/+13
This replaces bswap.h and integer.h. The tuklib module uses <byteswap.h> on GNU, <sys/endian.h> on *BSDs and <sys/byteorder.h> on Solaris, which may contain optimized code like inline assembly.
2009-10-02Make liblzma produce the same output on both endiannesses.Lasse Collin1-0/+30
Seems that it is a problem in some cases if the same version of XZ Utils produces different output on different endiannesses, so this commit fixes that problem. The output will still vary between different XZ Utils versions, but I cannot avoid that for now. This commit bloatens the code on big endian systems by 1 KiB, which should be OK since liblzma is bloated already. ;-)
2009-08-31Revert 43f44160b1ddcbf7e5205c37db09b3bebe7226f9Lasse Collin2-10/+4
and use a fix that works on all systems using GNU assembler. Maybe the assembler code is used e.g. on Solaris x86 but let's worry about it if this doesn't work on it.
2009-08-29Fix x86 assembler on GCC 3.Lasse Collin2-4/+10
Thanks to Karl Berry.
2009-06-30Build system fixesLasse Collin2-47/+51
Don't use libtool convenience libraries to avoid recently discovered long-standing subtle but somewhat severe bugs in libtool (at least 1.5.22 and 2.2.6 are affected). It was found when porting XZ Utils to Windows <http://lists.gnu.org/archive/html/libtool/2009-06/msg00070.html> but the problem is significant also e.g. on GNU/Linux. Unless --disable-shared is passed to configure, static library built from a set of convenience libraries will contain PIC objects. That is, while libtool builds non-PIC objects too, only PIC objects will be used from the convenience libraries. On 32-bit x86 (tested on mobile XP2400+), using PIC instead of non-PIC makes the decompressor 10 % slower with the default CFLAGS. So while xz was linked against static liblzma by default, it got the slower PIC objects unless --disable-shared was used. I tend develop and benchmark with --disable-shared due to faster build time, so I hadn't noticed the problem in benchmarks earlier. This commit also adds support for building Windows resources into liblzma and executables.
2009-06-27Hopefully improved portability of the assembler code inLasse Collin2-2/+14
Autotools based builds on Windows.
2009-06-26Basic support for building with Cygwin and MinGW usingLasse Collin2-6/+8
the Autotools based build system. It's not good yet, more fixes will follow.
2009-06-26Fix @variables@ to $(variables) in Makefile.am files.Lasse Collin1-2/+2
Fix the ordering of libgnu.a and LTLIBINTL on the linker command line and added missing LTLIBINTL to tests/Makefile.am.
2009-05-02Use a GCC-specific #pragma instead of GCC-specificLasse Collin2-5/+5
-Wno-uninitialized to silence a bogus warning.
2009-04-13Put the interesting parts of XZ Utils into the public domain.Lasse Collin15-93/+88
Some minor documentation cleanups were made at the same time.
2009-02-13Improve support for DOS-like systems.Lasse Collin2-6/+6
Here DOS-like means DOS, Windows, and OS/2.
2009-02-09Let the user specify custom CFLAGS on the make commandLasse Collin1-1/+1
line. Previously custom CFLAGS worked only when they were passed to configure.
2009-02-08Add a separate internal function to initialize the CRC32Lasse Collin2-1/+10
table, which is used also by LZ encoder. This was needed because calling lzma_crc32() and ignoring the result is a no-op due to lzma_attr_pure.
2009-02-07Support LZMA_API_STATIC in assembler files toLasse Collin2-0/+6
avoid __declspec(dllexport) equivalent.
2009-02-02Updated the x86 assembler code:Lasse Collin2-22/+144
- Use call/ret pair to get instruction pointer for PIC. - Use PIC only if PIC or __PIC__ is #defined. - The code should work on MinGW and Darwin in addition to GNU/Linux and Solaris.
2009-02-02Modify LZMA_API macro so that it works on Windows withLasse Collin5-6/+6
other compilers than MinGW. This may hurt readability of the API headers slightly, but I don't know any better way to do this.
2009-01-30Remove dangling crc64_init.c.Lasse Collin1-55/+0
2009-01-26Regenerate the CRC tables without trailing blanks.Lasse Collin4-2024/+2024
2009-01-26remove trailing blanks from all but .xz filesJim Meyering2-2/+2
2008-12-31Remove lzma_init() and other init functions from liblzma API.Lasse Collin11-146/+228
Half of developers were already forgetting to use these functions, which could have caused total breakage in some future liblzma version or even now if --enable-small was used. Now liblzma uses pthread_once() to do the initializations unless it has been built with --disable-threads which make these initializations thread-unsafe. When --enable-small isn't used, liblzma currently gets needlessly linked against libpthread (on systems that have it). While it is stupid for now, liblzma will need threads in future anyway, so this stupidity will be temporary only. When --enable-small is used, different code CRC32 and CRC64 is now used than without --enable-small. This made the resulting binary slightly smaller, but the main reason was to clean it up and to handle the lack of lzma_init_check(). The pkg-config file lzma.pc was renamed to liblzma.pc. I'm not sure if it works correctly and portably for static linking (Libs.private includes -pthread or other operating system specific flags). Hopefully someone complains if it is bad. lzma_rc_prices[] is now included as a precomputed array even with --enable-small. It's just 128 bytes now that it uses uint8_t instead of uint32_t. Smaller array seemed to be at least as fast as the more bloated uint32_t array on x86; hopefully it's not bad on other architectures.
2008-08-28Sort of garbage collection commit. :-| Many things are stillLasse Collin3-134/+90
broken. API has changed a lot and it will still change a little more here and there. The command line tool doesn't have all the required changes to reflect the API changes, so it's easy to get "internal error" or trigger assertions.
2008-06-18Update the code to mostly match the new simpler file formatLasse Collin8-95/+110
specification. Simplify things by removing most of the support for known uncompressed size in most places. There are some miscellaneous changes here and there too. The API of liblzma has got many changes and still some more will be done soon. While most of the code has been updated, some things are not fixed (the command line tool will choke with invalid filter chain, if nothing else). Subblock filter is somewhat broken for now. It will be updated once the encoded format of the Subblock filter has been decided.
2008-04-25Removed src/liblzma/common/sysdefs.h symlink, which wasLasse Collin2-2/+2
annoying, because "make dist" put two copies of sysdefs.h into the tarball instead of the symlink.
2008-01-26Added note.GNU-stack to x86 assembler files. It is neededLasse Collin2-0/+18
when using non-executable stack.
2008-01-15Fix CRC code in case --enable-small is used.Lasse Collin2-2/+2
2008-01-08More pre-C99 inttypes.h compatibility fixes. Now the codeLasse Collin4-18/+6
should work even if the system has no inttypes.h.
2008-01-06Introduced compatibility with systems that have pre-C99Lasse Collin8-16/+2
or no inttypes.h. This is useful when the compiler has good enough support for C99, but libc headers don't. Changed liblzma API so that sys/types.h and inttypes.h have to be #included before #including lzma.h. On systems that don't have C99 inttypes.h, it's the problem of the applications to provide the required types and macros before #including lzma.h. If lzma.h defined the missing types and macros, it could conflict with third-party applications whose configure has detected that the types are missing and defined them in config.h already. An alternative would have been introducing lzma_uint32 and similar types, but that would just be an extra pain on modern systems.
2007-12-14Use the filename suffix .S instead of .s for assembler filesLasse Collin3-2/+2
so that the preprocessor removes the /* */ style comments, which are not supported by some non-GNU assemblers (Solaris) that otherwise work with this code.
2007-12-14Fixed wrong symbol name in crc64_x86.s.Lasse Collin1-1/+1
2007-12-14Use .globl instead of .global in x86 assembler code forLasse Collin2-2/+2
better portability. Still needs fixing the commenting.
2007-12-09Added missing LZMA_API to the C versions of the CRC functions.Lasse Collin2-2/+2
The x86 assembler versions were already OK.
2007-12-09Imported to git.Lasse Collin21-0/+3596