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Author SHA1 Message Date
Yann Collet
c8ff5200f9
Merge pull request #1326 from facebook/refPrefix 
updated documentation of *refPrefix()
 2018-09-18 15:28:34 -07:00
Yann Collet
005f000aed updated documentation of *refPrefix() 
indicating the equivalence with `diff` operation.
 2018-09-18 13:07:08 -07:00
Nick Terrell
f884e9dd8e
Merge pull request #1321 from bket/non-portable 
'head -c BYTES' is non-portable.
 2018-09-17 14:40:27 -07:00
Yann Collet
00ce26725b
Merge pull request #1324 from ko-zu/fixclangcode 
Fix largeNbDicts bench for clangbuild
 2018-09-17 14:10:17 -07:00
Björn Ketelaars
06fd1e473d 'head -c BYTES' is non-portable. 
tests/playTests.sh uses 'head -c' in a couple of tests to truncate the
last byte of a file. The '-c' option is non-portable (not in POSIX).
Instead use a wrapper around dd (truncateLastByte).
 2018-09-17 20:39:35 +02:00
Nick Terrell
8f27e8cf3d
Merge pull request #1322 from azat-archive/seekable-fixes-pull 
Fixes read write past end of input buffer.
 2018-09-17 11:04:51 -07:00
ko-zu
b053bec2f4 Fix largeNbDicts bench for clangbuild 
Remove unsigned to size_t promotion to fix implicit down conversion errors in clangbuild target.
 2018-09-17 13:09:08 +09:00
Azat Khuzhin
d707692e05
seekable_decompression: support offset greater then UNIT_MAX 2018-09-16 18:05:32 +03:00
Azat Khuzhin
b52867a97f
zstdseek_decompress: fix decompression with data left in input buffer 2018-09-16 18:05:32 +03:00
Yann Collet
a2aedf458d
Merge pull request #1319 from ko-zu/fixclangbuild 
Fix clang build
 2018-09-15 19:31:42 -07:00
ko-zu
18b4a1da61 Fix clang build 
Fix dixygen comment
Fix clang binary path
 2018-09-16 10:27:02 +09:00
Yann Collet
7269fe6cd3 minor code comment update 2018-09-14 16:06:35 -07:00
Yann Collet
0403148315
Merge pull request #1295 from felixhandte/hdr-intro-comment-negative-lvls 
Proposed Update to Zstd.h Introduction Comment
 2018-09-14 15:29:19 -07:00
Yann Collet
0e5b447aaa
Merge pull request #1316 from facebook/coldDict 
Cold dictionary mitigation
 2018-09-14 10:37:46 -07:00
Yann Collet
5512400677 updated code comments, based on @terrelln review 2018-09-13 16:44:04 -07:00
Yann Collet
d195eec97e fixed msan error 
cold dictionary is detected through a comparison with dictEnd,
which was not initialized at the beginning of first DCtx usage.
 2018-09-13 12:29:52 -07:00
Yann Collet
674dd21bd0 final parameter tuning 2018-09-12 17:25:34 -07:00
Yann Collet
419dfd4ea3 clean traces 2018-09-12 16:40:28 -07:00
Yann Collet
2618253da2 fixed PREFETCH() macro 
for corner cases and platforms without this instruction
 2018-09-12 16:15:37 -07:00
Yann Collet
b287b8f7c6
Merge pull request #1315 from cmcginty/dev 
Add build define to manually enable -rdynamic LD flag
 2018-09-12 16:12:00 -07:00
Yann Collet
44d3b83bb1 conditional dict content prefetching 
based on nbSeq.
 2018-09-12 15:35:21 -07:00
Casey McGinty
d019d15f2b
Add build define to manually enable -rdynamic LD flag 2018-09-12 14:00:08 -07:00
Yann Collet
7800d0235c
Merge pull request #1314 from terrelln/cpuid 
[libzstd] Fix cpu for MSFT ARM
 2018-09-12 13:30:16 -07:00
Yann Collet
5fb5ed3b31 adjust heuristic decisions 2018-09-12 12:32:09 -07:00
Nick Terrell
f6daddf2db Also allow x86 2018-09-12 12:05:32 -07:00
Yann Collet
c49ccbc8e7 largeNbDicts : can select a nb of blocks 
will automatically truncate or repeat input as needed,
to create the requested nb of blocks.
default: nb of files, eventually increased appropriately if blockSize is set
 2018-09-12 11:31:28 -07:00
Nick Terrell
1e0bac6a9c [libzstd] Fix cpu for MSFT ARM 
The `__cpuid()` and `__cpuidex()` intrinsics are only available
on x86 and x86_64.
 2018-09-12 10:35:16 -07:00
Yann Collet
4de344d505 added conditional prefetch 
depending on amount of work to do.
 2018-09-12 10:29:47 -07:00
Yann Collet
cf5db388f3
Merge pull request #1311 from cmcginty/dev 
Print a stack trace on unexpected term signal (e.g. SIGABRT)
 2018-09-12 10:13:23 -07:00
Yann Collet
63a519dbf6 implemented first prefetch 
based on dictID.
dictContent is prefetched up to 32 KB
(no contentSize adaptation)
 2018-09-11 17:23:44 -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
Yann Collet
51a246da82
Merge pull request #1310 from facebook/Dworkspace 
reduce DDict size by 2KB
 2018-09-10 13:11:11 -07:00
Yann Collet
3675ef4762 added comment about minimum size of FSE tables 
required for DDict creation,
which use this space as workspace during Hufman table building stage.
 2018-09-10 11:24:17 -07:00
Yann Collet
7ff74c89fa
Merge pull request #1307 from facebook/spec 
spec clarification
 2018-09-07 15:42:04 -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
112c18d6d5
Merge pull request #1309 from facebook/islink 
fixed UTIL_isLink() for Mac OS-X
 2018-09-06 18:01:10 -07:00
Yann Collet
f97ca36eab strengthened conditions for using workplace into fse table space 
ensure that the structure layout is as expected.
will trigger an error if it changes in the future.

Another solution would be to use a union,
this would be cleaner and get rid of these static asserts.

However, in order to keep the current code unmodified,
it would be necessary to use an un-named unions.
And apparently, un-named unions are only possible on "recent" compilers (C99+).
 2018-09-06 17:54:13 -07:00
Yann Collet
b036b9a177 Merge branch 'islink' into Dworkspace 2018-09-06 17:33:27 -07:00
Yann Collet
deb03d8a26 fixed UTIL_isLink() for Mac OS-X 2018-09-06 17:32:16 -07:00
Yann Collet
87406548f0 reduced DDict size, by -2KB 
corresponding to the removal of workspace
which is needed while building huffman table
and is now either present in DCtx,
or temporarily borrowed from available FSE table space.
 2018-09-06 17:07:53 -07:00
Yann Collet
79106d8de9
Merge pull request #1308 from facebook/codeofconduct 
added code of conduct
 2018-09-06 14:38:32 -07:00
Yann Collet
161ecddf3c added code of conduct 
as requested by Facebook OSS program.
 2018-09-06 11:20:39 -07:00
Yann Collet
50b216146f
Merge pull request #1304 from facebook/largeNbDicts 
contrib/largeNbDicts
 2018-09-06 09:50:56 -07:00
Yann Collet
c57a856d64 fixed minor static analyzer warning 2018-09-05 14:33:51 -07:00
Yann Collet
55a8f84a2c spec clarification 
following #1305 comments from @ulikunitz
 2018-09-05 12:31:33 -07:00
Nick Terrell
d492ef4e07
Merge pull request #1306 from jennifermliu/dev 
Change default f of FASTCOVER to 20
 2018-09-04 18:03:36 -07:00