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1357 Commits
Author SHA1 Message Date
Yann ColletandGitHub c9843ec232 Merge pull request #1348 from facebook/donotdelete 
Fix #1082
 2018-10-02 16:37:58 -07:00
Yann Collet 3ca6261223 fixed static analyzer warnings 
note : for some reason,
scan-build version on my laptop found problems within fastcover.c
that scan-build on travisCI does not flag.

They are, as usual, false positive :
the analyzer does not understand that a table (`offset`) is correctly filled before usage.
 2018-10-02 15:59:11 -07:00
Yann Collet d98733b37e restored backtrace on failure 
for Linux and Mac OS-X.

Note : the backtraces fires up through a trap
before the sanitizer get a chance to report.
There are situations where the sanitizer report is actually preferable.

It might be good to consider a kind of build macro
which can disable backtrace
when sanitizer is enabled.
 2018-10-01 17:50:16 -07:00
Yann Collet 9012b6cba0 ./zstd -f do no longer overwrite destination file 
if source file does not exist (#1082)
 2018-10-01 17:16:34 -07:00
Yann Collet c7bd6a41ab zstd -d -f do no longer erase destination file 
when source file does not exist (#1082)
 2018-10-01 14:04:00 -07:00
Yann Collet 1ab71a8e72 regroup name creation logic into its own function 
for a cleaner main file decompression loop
 2018-09-28 18:19:23 -07:00
Yann Collet ec1cb8e996 changed macro name 
from EXIT_IF() to RETURN_IF()

EXIT could be misunderstood as exit(), which terminates program execution.
But the macro only leaves the function, not the program.
 2018-09-28 16:04:00 -07:00
Yann Collet 05c0a072b7 minor improvement in the multi-format suffix selection 2018-09-28 15:57:35 -07:00
Nick Terrell 09231dad4d [util] Fix lstat feature test macro 2018-09-28 15:23:09 -07:00
Yann Collet d987ab5983 fixed unreachable section warning on Visual 2018-09-28 09:34:16 -07:00
Yann Collet 913a0365b6 Merge branch 'dev' into donotdelete 2018-09-27 19:23:55 -07:00
Yann Collet ef1272737b fixed minor Visual conversion warnings 2018-09-27 18:29:15 -07:00
Yann Collet 9b45db7fa6 minor refactoring of --list 
trying to reduce recurrent patterns.
 2018-09-27 16:49:08 -07:00
Nick Terrell f2d6db45cd [zstd] Add -Wmissing-prototypes 2018-09-27 15:24:48 -07:00
Yann ColletandGitHub e74eade251 Merge pull request #1339 from facebook/grep_colors 
fixed usage of grep in Makefile
 2018-09-26 14:39:20 -07:00
Yann ColletandGitHub 8883af6a1e Merge pull request #1327 from facebook/adapt 
Adaptive compression
 2018-09-26 14:39:08 -07:00
Yann ColletandGitHub 8ff17a6a09 Merge pull request #1329 from facebook/v04isout 
Changed default legacy support to v0.5+
 2018-09-26 13:39:05 -07:00
Yann Collet 08f68d83c5 fixed usage of grep in Makefile 
when terminal uses colors
as suggested by @danielshir (#1294)
 2018-09-25 16:56:53 -07:00
Yann Collet 6c51bf420c bounds for --adapt mode 
can supply min and max compression level through advanced command :
--adapt=min=#,max=#
 2018-09-25 16:03:28 -07:00
Yann Collet 04f47bbdd2 Merge branch 'dev' into adapt 2018-09-24 16:56:45 -07:00
Yann ColletandGitHub 9bb6c15f79 Merge pull request #1332 from facebook/minclevel 
defined a minimum negative level
 2018-09-24 16:01:13 -07:00
Yann Collet 0250ac74ce fixed minor scan-build warnings 2018-09-24 00:52:19 -07:00
Yann Collet 0fc07eb1fd fixed zstd-decompress 
which cannot support ZSTD_minCLevel()
 2018-09-22 17:21:39 -07:00
Yann Collet 364041c6dd enforce minimum compression level limit 
using ZSTD_minCLevel()
 2018-09-22 16:10:10 -07:00
Yann Collet 00c18c0c88 simplified "slows down when compression blocked" 2018-09-21 16:35:43 -07:00
Yann Collet c484345a82 Merge branch 'mingw' into adapt 2018-09-21 16:00:46 -07:00
Yann Collet bfff4f4809 ensure all writes to job->cSize are mutex protected 
even when reporting errors,
using a macro for code brevity, as suggested by @terrelln,
 2018-09-21 16:00:39 -07:00
Yann Collet 32b7cf1bcf fixed tautological tests 
involving ZSTD_TARGETLENGTH_MIN (== 0)
 2018-09-21 15:04:43 -07:00
Yann Collet 54001f3dbc fix mingw compatibility 
only enable backtraces for platforms we know support it
aka mac OS-X and Linux.
can be extended later.
 2018-09-21 14:46:09 -07:00
Yann Collet b2939163e1 Changed default legacy support to v0.5+ 
thus dropping read support for v0.4.

It's always possible to re-enable it, by changing build macro ZSTD_LEGACY_SUPPORT to 4.
 2018-09-20 14:30:20 -07:00
Yann Collet 15519479ba fixed minor gcc warning on a unused variable 2018-09-20 13:00:11 -07:00
Yann Collet 45010da074 updated man page 
and added `--adapt` test in `playTests.sh`
 2018-09-19 17:37:22 -07:00
Yann Collet ca02ebee07 removed static variables 
so that --adapt can work on multiple input files too
 2018-09-19 15:25:50 -07:00
Yann Collet 89bc309d90 error out when --adapt is associated with --single-thread 
since they are not compatible
 2018-09-19 14:49:13 -07:00
Yann Collet 2f78228f65 Merge branch 'dev' into adapt 2018-09-19 12:43:42 -07:00
Casey McGinty d019d15f2b Add build define to manually enable -rdynamic LD flag 2018-09-12 14:00:08 -07:00
Casey McGinty b703181f93 Disable -rdynamic LD option on Windows 2018-09-11 16:19:34 -07:00
Casey McGinty b9118ecdab Update comments, and LD flag usage in Make 2018-09-11 14:49:47 -07:00
Casey McGinty 2224ecd718 Remove dead code and method name typo 2018-09-11 11:56:50 -07:00
Casey McGinty d4337b6f1d Move ABRThandler func out of internal lib 2018-09-11 11:39:49 -07:00
Casey McGinty 2a3967b7c4 Refactor abort signal handling 
- Print signal name to term
- Add -rdynamic option to generate Linux symbol names in backtrace
- Raise default signal after handler to ensure program termination
 2018-09-11 10:40:45 -07:00
Casey McGinty a06574fc97 Print a stack trace on unexpected term signal (e.g. SIGABRT) 
For OSX and Linux, add a signal handler to SIGABRT, SGIFPE, SIGILL,
SIGSEGV, and SIGBUS. When the program terminates unexpectedly the
handler will print the current stack to the terminal to help determine
the location of the failure.

On OSX the output will look like:

```
Stack trace:
4   zstd                                0x000000010927ed96 main + 16886
5   libdyld.dylib                       0x00007fff767d1015 start + 1
6   ???                                 0x0000000000000001 0x0 + 1
```

On Linux the output will look like:

```
Stack trace:
./zstd() [0x4b8e1b]
./zstd() [0x4b928a]
./zstd() [0x403dc2]
/lib64/libc.so.6(__libc_start_main+0xf5) [0x7f5e0fbb0445]
./zstd() [0x405754]
```

As is, the code does not function on WIN32.

See also: https://oroboro.com/stack-trace-on-crash/
 2018-09-06 18:46:52 -07:00
Yann Collet deb03d8a26 fixed UTIL_isLink() for Mac OS-X 2018-09-06 17:32:16 -07:00
Yann ColletandGitHub 50b216146f Merge pull request #1304 from facebook/largeNbDicts 
contrib/largeNbDicts
 2018-09-06 09:50:56 -07:00
Jennifer Liu 21721b75a3 Change default f to 20 2018-09-04 17:15:14 -07:00
Yann Collet 39c55a118f fixed minor compatibility issues with older compilers 2018-08-30 16:00:57 -07:00
Jennifer Liu f87383507d Update comment about default dictionary builder 2018-08-30 15:46:39 -07:00
Yann Collet 4086b2871b largeNbDicts compatible with multiple source files 
splitting is disabled by default, but can be re-enabled using usual command -B#
update commands to look like zstd ones
 2018-08-30 14:38:49 -07:00
Yann Collet 0c66a44d1b first working test program 
measures :
- compression ratio with / without dictionary
- create one dictionary per block
- memory budget for dictionaries
- decompression speed, using one different dictionary per block

current limitations :
- only one file
- 4K blocks only
- automatic dictionary built with 4K size

dictionary can be selected on command line, with -D
 2018-08-28 15:47:07 -07:00
Yann ColletandGitHub b37a0a6bde Merge pull request #1298 from facebook/bench 
Refactored bench.c
 2018-08-28 12:25:02 -07:00