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65 Commits

Author SHA1 Message Date
Kostya Serebryany
2c1ecb8c48 [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 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262754 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-04 22:35:40 +00:00
Kostya Serebryany
66bb64fd43 [libFuzzer] deprecate exit_on_first flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262417 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-01 22:33:14 +00:00
Kostya Serebryany
7a1dcf9965 [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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262415 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-01 22:19:21 +00:00
Kostya Serebryany
86b1b67565 [libFuzzer] add -print_final_stats=1 flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262084 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-26 22:42:23 +00:00
Kostya Serebryany
a755f1bd65 [libFuzzer] only read MaxLen bytes from every file in the corpus to speedup loading the corpus 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@261267 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-18 21:49:10 +00:00
Kostya Serebryany
2d7392fe48 [libFuzzer] remove std::vector operations from hot paths, NFC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260829 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-13 17:56:51 +00:00
Kostya Serebryany
5a08f1b013 [libFuzzer] remove the C++-ish variant of FuzzerDriver from the interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260801 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-13 03:59:26 +00:00
Kostya Serebryany
efb0cc7640 [libFuzzer] get rid of UserSuppliedFuzzer; NFC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260798 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-13 03:25:16 +00:00
Kostya Serebryany
728ca1266f [libFuzzer] simplify the code around Random. NFC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260797 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-13 03:00:53 +00:00
Kostya Serebryany
f71ac00d01 [libFuzzer] remove UserSuppliedFuzzer from the interface (it was a bad idea). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260796 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-13 02:39:30 +00:00
Kostya Serebryany
14c6007ab2 [libFuzzer] make -runs=N flag also affect the simple runner (will execute every input N times) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260649 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-12 02:32:03 +00:00
Kostya Serebryany
485551ecaf [libFuzzer] allow passing 1 or more files as individual inputs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259459 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-02 03:03:47 +00:00
Kostya Serebryany
58b3c64b6b [libFuzzer] add -timeout_exitcode option 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259265 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-01-29 23:30:07 +00:00
Kostya Serebryany
d75ddafc2f [libFuzzer] add -abort_on_timeout option 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258631 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-01-23 19:34:19 +00:00
Kostya Serebryany
429a7edf9b [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 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258178 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-01-19 20:33:57 +00:00
Kostya Serebryany
baa00e52a5 [libFuzzer] replace vector with a simpler data structure in the Dictionaries to avoid memory allocations on hot path 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257985 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-01-16 03:53:32 +00:00
Kostya Serebryany
f1af856009 [libFuzzer] do mutations based on memcmp/strcmp interceptors under a separate flag (-use_memcmp, default=1) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257873 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-01-15 06:24:05 +00:00
Kostya Serebryany
9039b1ff4e [libFuzzer] use custom stol; also introduce __libfuzzer_is_present so that users can check for its presence. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257848 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-01-15 00:17:37 +00:00
Kostya Serebryany
7fddde9543 [libFuzzer] change the way trace-based mutations are applied. Instead of a custom code just rely on the automatically created dictionary 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257248 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-01-09 03:08:58 +00:00
Kostya Serebryany
ab240104f0 [libFuzzer] add a position hint to the dictionary-based mutator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257013 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-01-07 01:49:35 +00:00
Mike Aizatsky
1cea7723fa [libfuzzer] print_new_cov_pcs experimental option. 
Differential Revision: http://reviews.llvm.org/D15901

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256882 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-01-06 00:21:22 +00:00
Kostya Serebryany
62663ee66e [libFuzzer] deprecate -save_minimized_corpus, -merge can be used instead 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256086 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-12-19 03:42:16 +00:00
Mike Aizatsky
6d5ee5a800 [LibFuzzer] Introducing FUZZER_FLAG_UNSIGNED and using it for seeding. 
Differential Revision: http://reviews.llvm.org/D15339

done

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255296 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-12-10 20:41:53 +00:00
Kostya Serebryany
e8d7ae6209 [libFuzzer] add a flag -exact_artifact_path 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254100 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-11-25 21:40:46 +00:00
Kostya Serebryany
45ac8bc6fc [libFuzzer] don't crash when reporting a leak in test_single_input mode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253761 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-11-21 03:46:43 +00:00
Mike Aizatsky
c1a030fd64 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252856 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-11-12 04:38:40 +00:00
Kostya Serebryany
1a42a60ebc [libFuzzer] experimental flag -drill (another search heuristic; Mike Aizatsky's idea) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252838 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-11-12 01:02:01 +00:00
Kostya Serebryany
af639be62f [libFuzzer] make -test_single_input more reliable: make sure the input's size is equal to it's capacity 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251961 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-11-03 18:57:25 +00:00
Kostya Serebryany
242325ad98 [libFuzzer] add -merge flag to merge corpora 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251168 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-10-24 01:16:40 +00:00
Kostya Serebryany
7bcc4cdbdd [libFuzzer] use the indirect caller-callee counter as an independent search heuristic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251078 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-10-22 23:55:39 +00:00
Kostya Serebryany
a3619c6b43 [libFuzzer] remove the deprecated 'tokens' feature 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251069 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-10-22 21:48:09 +00:00
Craig Topper
44bf343ec1 Make a bunch of static arrays const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250642 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-10-18 05:15:34 +00:00
Kostya Serebryany
2a50aa48db [libFuzzer] add -shuffle flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250603 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-10-17 04:38:26 +00:00
Kostya Serebryany
17062e257e [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 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250564 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-10-16 22:41:47 +00:00
Kostya Serebryany
22d6013f13 [libFuzzer] add -artifact_prefix flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249807 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-10-09 03:57:59 +00:00
Kostya Serebryany
2e700c9bf6 [libFuzzer] trying to fix at-exit hang 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249231 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-10-03 07:02:05 +00:00
Kostya Serebryany
f351bce7bd [libFuzzer] remove experimental flag and functionality 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249194 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-10-02 22:00:32 +00:00
Kostya Serebryany
cd0d243e72 [libFuzzer] add a flag -max_total_time 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249181 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-10-02 20:47:55 +00:00
Ivan Krasin
55928e792c [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!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249096 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-10-01 23:23:06 +00:00
Kostya Serebryany
a8d8dba0a6 [libFuzzer] add two more variants of FuzzerDriver for convenience 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247300 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-09-10 16:57:57 +00:00
Kostya Serebryany
06465a68cc [libFuzzer] remove -iterations as redundant (there is also -num_runs) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247030 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-09-08 17:30:35 +00:00
Kostya Serebryany
6cc3ed7cdd [libFuzzer] actually make the dictionaries work (+docs) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246825 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-09-04 00:12:11 +00:00
Kostya Serebryany
446d906a52 [libFuzzer] adding a parser for AFL-style dictionaries + tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246800 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-09-03 20:23:46 +00:00
Kostya Serebryany
8f6c191d6c [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 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246734 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-09-02 23:27:39 +00:00
Kostya Serebryany
234cfada18 [libFuzzer] add two flags, -tbm_depth and -tbm_width to control how the trace-based-mutations are applied 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244712 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-08-12 01:55:37 +00:00
Kostya Serebryany
89f52ac188 [libFuzzer] add -only_ascii flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244559 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-08-11 01:44:42 +00:00
Kostya Serebryany
7141424447 [libFuzzer] add option -report_slow_units=Nsec to control when slow units are printed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244152 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-08-05 21:43:48 +00:00
Kostya Serebryany
33a9a09cd7 [libFuzzer] allow users to supply their own implementation of rand 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243078 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-24 01:06:40 +00:00
Kostya Serebryany
4ea4cb3197 [lib/Fuzzer] start getting rid of std::cerr. Sadly, these parts of C++ library used in libFuzzer badly interract with the same code used in the target function and also with dfsan. It's easier to just not use std::cerr than to defeat these issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238078 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-05-23 01:07:46 +00:00
Kostya Serebryany
464deacf05 [lib/Fuzzer] remove -use_coverage_pairs=1, an experimental feature that is unlikely to ever scale 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238063 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-05-22 22:47:03 +00:00