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71 Commits

Author SHA1 Message Date
Kostya Serebryany
6ff8ede73a [libFuzzer] handle SIGTERM 
llvm-svn: 264338
 2016-03-24 21:03:58 +00:00
Kostya Serebryany
01af064f8d [libFuzzer] add a flag close_fd_mask so that we can silence spammy targets by closing stderr/stdout 
llvm-svn: 263831
 2016-03-18 20:58:29 +00:00
Kostya Serebryany
c99e69af78 [libFuzzer] improve -merge functionality 
llvm-svn: 263769
 2016-03-18 00:23:29 +00:00
Kostya Serebryany
e634bbeadd [libFuzzer] deprecate several flags 
llvm-svn: 263739
 2016-03-17 19:59:39 +00:00
Kostya Serebryany
b66ed58c06 [libFuzzer] use max_len exactly equal to the max size of input. Fix 32-bit build 
llvm-svn: 263518
 2016-03-15 01:28:00 +00:00
Kostya Serebryany
5b93d4b15a [libFuzzer] try to use max_len based on the items of the corpus instead of blindly defaulting to 64 bytes. 
llvm-svn: 263323
 2016-03-12 01:57:04 +00:00
Kostya Serebryany
c6f46ed530 [libFuzzer] log less when re-loading files; fix a silly bug: when running single files actually run all of them, not just the first one 
llvm-svn: 262754
 2016-03-04 22:35:40 +00:00
Kostya Serebryany
96af1208c1 [libFuzzer] deprecate exit_on_first flag 
llvm-svn: 262417
 2016-03-01 22:33:14 +00:00
Kostya Serebryany
d5755334e5 [libFuzzer] add generic signal handlers so that libFuzzer can report at least something if ASan is not handlig the signals for us. Remove abort_on_timeout flag. 
llvm-svn: 262415
 2016-03-01 22:19:21 +00:00
Kostya Serebryany
503e17c728 [libFuzzer] add -print_final_stats=1 flag 
llvm-svn: 262084
 2016-02-26 22:42:23 +00:00
Kostya Serebryany
7ef7f142ff [libFuzzer] only read MaxLen bytes from every file in the corpus to speedup loading the corpus 
llvm-svn: 261267
 2016-02-18 21:49:10 +00:00
Kostya Serebryany
abc380db58 [libFuzzer] remove std::vector operations from hot paths, NFC 
llvm-svn: 260829
 2016-02-13 17:56:51 +00:00
Kostya Serebryany
ef83d4c558 [libFuzzer] remove the C++-ish variant of FuzzerDriver from the interface 
llvm-svn: 260801
 2016-02-13 03:59:26 +00:00
Kostya Serebryany
b9687a1cc3 [libFuzzer] get rid of UserSuppliedFuzzer; NFC 
llvm-svn: 260798
 2016-02-13 03:25:16 +00:00
Kostya Serebryany
9bf814b9ec [libFuzzer] simplify the code around Random. NFC 
llvm-svn: 260797
 2016-02-13 03:00:53 +00:00
Kostya Serebryany
1bb500faf8 [libFuzzer] remove UserSuppliedFuzzer from the interface (it was a bad idea). 
llvm-svn: 260796
 2016-02-13 02:39:30 +00:00
Kostya Serebryany
cf66bc968c [libFuzzer] make -runs=N flag also affect the simple runner (will execute every input N times) 
llvm-svn: 260649
 2016-02-12 02:32:03 +00:00
Kostya Serebryany
4b2ab57d9f [libFuzzer] allow passing 1 or more files as individual inputs 
llvm-svn: 259459
 2016-02-02 03:03:47 +00:00
Kostya Serebryany
e3ec64cf18 [libFuzzer] add -timeout_exitcode option 
llvm-svn: 259265
 2016-01-29 23:30:07 +00:00
Kostya Serebryany
0c11655f17 [libFuzzer] add -abort_on_timeout option 
llvm-svn: 258631
 2016-01-23 19:34:19 +00:00
Kostya Serebryany
8820217862 [libFuzzer] use std::mt19937 for generating random numbers by default. Fix MyStoll to handle negative values. Use std::any_of instead of std::find_if 
llvm-svn: 258178
 2016-01-19 20:33:57 +00:00
Kostya Serebryany
0ae292d42e [libFuzzer] replace vector with a simpler data structure in the Dictionaries to avoid memory allocations on hot path 
llvm-svn: 257985
 2016-01-16 03:53:32 +00:00
Kostya Serebryany
b40c61f46c [libFuzzer] do mutations based on memcmp/strcmp interceptors under a separate flag (-use_memcmp, default=1) 
llvm-svn: 257873
 2016-01-15 06:24:05 +00:00
Kostya Serebryany
2afdf677ec [libFuzzer] use custom stol; also introduce __libfuzzer_is_present so that users can check for its presence. 
llvm-svn: 257848
 2016-01-15 00:17:37 +00:00
Kostya Serebryany
bdc66ac566 [libFuzzer] change the way trace-based mutations are applied. Instead of a custom code just rely on the automatically created dictionary 
llvm-svn: 257248
 2016-01-09 03:08:58 +00:00
Kostya Serebryany
da719cf533 [libFuzzer] add a position hint to the dictionary-based mutator 
llvm-svn: 257013
 2016-01-07 01:49:35 +00:00
Mike Aizatsky
b1bf6550e4 [libfuzzer] print_new_cov_pcs experimental option. 
Differential Revision: http://reviews.llvm.org/D15901

llvm-svn: 256882
 2016-01-06 00:21:22 +00:00
Kostya Serebryany
4165eed18e [libFuzzer] deprecate -save_minimized_corpus, -merge can be used instead 
llvm-svn: 256086
 2015-12-19 03:42:16 +00:00
Mike Aizatsky
ea27e92765 [LibFuzzer] Introducing FUZZER_FLAG_UNSIGNED and using it for seeding. 
Differential Revision: http://reviews.llvm.org/D15339

done

llvm-svn: 255296
 2015-12-10 20:41:53 +00:00
Kostya Serebryany
4b6eeeca4b [libFuzzer] add a flag -exact_artifact_path 
llvm-svn: 254100
 2015-11-25 21:40:46 +00:00
Kostya Serebryany
41c09f4dbc [libFuzzer] don't crash when reporting a leak in test_single_input mode 
llvm-svn: 253761
 2015-11-21 03:46:43 +00:00
Mike Aizatsky
4afb4aff05 output_csv libfuzzer option 
Summary:
The option outputs statistics in CSV format preceded by 1 header line.
This is intended for machine processing of the output.
-verbosity=0 should likely be set.

Differential Revision: http://reviews.llvm.org/D14600

llvm-svn: 252856
 2015-11-12 04:38:40 +00:00
Kostya Serebryany
745d4188ac [libFuzzer] experimental flag -drill (another search heuristic; Mike Aizatsky's idea) 
llvm-svn: 252838
 2015-11-12 01:02:01 +00:00
Kostya Serebryany
6ba411ce7a [libFuzzer] make -test_single_input more reliable: make sure the input's size is equal to it's capacity 
llvm-svn: 251961
 2015-11-03 18:57:25 +00:00
Kostya Serebryany
c171514e30 [libFuzzer] add -merge flag to merge corpora 
llvm-svn: 251168
 2015-10-24 01:16:40 +00:00
Kostya Serebryany
829e28a729 [libFuzzer] use the indirect caller-callee counter as an independent search heuristic 
llvm-svn: 251078
 2015-10-22 23:55:39 +00:00
Kostya Serebryany
99fe4b430c [libFuzzer] remove the deprecated 'tokens' feature 
llvm-svn: 251069
 2015-10-22 21:48:09 +00:00
Craig Topper
c8409f4435 Make a bunch of static arrays const. 
llvm-svn: 250642
 2015-10-18 05:15:34 +00:00
Kostya Serebryany
b30ba817ce [libFuzzer] add -shuffle flag 
llvm-svn: 250603
 2015-10-17 04:38:26 +00:00
Kostya Serebryany
47e5e62e71 [libFuzzer] When -test_single_input crashes the test it is not necessary to write crash-file because input is already known to the user. Patch by Mike Aizatsky 
llvm-svn: 250564
 2015-10-16 22:41:47 +00:00
Kostya Serebryany
e3d637a4af [libFuzzer] add -artifact_prefix flag 
llvm-svn: 249807
 2015-10-09 03:57:59 +00:00
Kostya Serebryany
d0d9f0b833 [libFuzzer] trying to fix at-exit hang 
llvm-svn: 249231
 2015-10-03 07:02:05 +00:00
Kostya Serebryany
20a00e008b [libFuzzer] remove experimental flag and functionality 
llvm-svn: 249194
 2015-10-02 22:00:32 +00:00
Kostya Serebryany
70f0401f05 [libFuzzer] add a flag -max_total_time 
llvm-svn: 249181
 2015-10-02 20:47:55 +00:00
Ivan Krasin
b941371206 [LibFuzzer] test_single_input option to run a single test case. 
-test_single_input flag specifies a file name with test data.

Review URL: http://reviews.llvm.org/D13359

Patch by Mike Aizatsky!

llvm-svn: 249096
 2015-10-01 23:23:06 +00:00
Kostya Serebryany
0001c18d8c [libFuzzer] add two more variants of FuzzerDriver for convenience 
llvm-svn: 247300
 2015-09-10 16:57:57 +00:00
Kostya Serebryany
28b0d0ab37 [libFuzzer] remove -iterations as redundant (there is also -num_runs) 
llvm-svn: 247030
 2015-09-08 17:30:35 +00:00
Kostya Serebryany
28a699d9b8 [libFuzzer] actually make the dictionaries work (+docs) 
llvm-svn: 246825
 2015-09-04 00:12:11 +00:00
Kostya Serebryany
3b60fc1204 [libFuzzer] adding a parser for AFL-style dictionaries + tests. 
llvm-svn: 246800
 2015-09-03 20:23:46 +00:00
Kostya Serebryany
d4b7d4667f [libFuzzer] deprecate the -tokens flag. This was a bad idea because the corpus with this flag contains encrypted inputs, not the real inputs, which complicates interoperation with other fuzzers. Instead we'll need to implement AFL dictionary support 
llvm-svn: 246734
 2015-09-02 23:27:39 +00:00