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80 Commits

Author SHA1 Message Date
Kostya Serebryany
909ee84abf [libFuzzer] print the file name before executing the input so that if there is a crash we know which files has caused it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269450 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-05-13 18:10:33 +00:00
Kostya Serebryany
f01dfdd8aa [libFuzzer] enhance -rss_limit_mb and enable by default. Now it will print the OOM reproducer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268821 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-05-06 23:38:07 +00:00
Kostya Serebryany
815a884f59 [libFuzzer] add exeprimental -rss_limit_mb flag to fight against OOMs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268807 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-05-06 21:58:35 +00:00
Kostya Serebryany
18c0216842 [libFuzzer] print stats after running individual inputs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268547 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-05-04 20:44:50 +00:00
Kostya Serebryany
a0a13e0ee1 [libFuzzer] added -detect_leaks flag (0 by default for now). When enabled, it will help finding leaks while fuzzing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266838 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-04-20 00:24:21 +00:00
Kostya Serebryany
37e715dc57 [libFuzzer] warn if the corpus is empty 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266670 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-04-18 21:14:11 +00:00
Mehdi Amini
f6071e14c5 [NFC] Header cleanup 
Removed some unused headers, replaced some headers with forward class declarations.

Found using simple scripts like this one:
clear && ack --cpp -l '#include "llvm/ADT/IndexedMap.h"' | xargs grep -L 'IndexedMap[<]' | xargs grep -n --color=auto 'IndexedMap'

Patch by Eugene Kosov <claprix@yandex.ru>

Differential Revision: http://reviews.llvm.org/D19219

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266595 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-04-18 09:17:29 +00:00
Kostya Serebryany
ac6d266478 [libFuzzer] add a better warning for command line flags with -- (two dashes) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266480 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-04-15 21:56:29 +00:00
Hans Wennborg
f721b994c5 Remove redundant .c_str(), as suggested by PR25633 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265988 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-04-11 20:35:17 +00:00
Kostya Serebryany
d32f138d30 [libFuzzer] handle SIGTERM 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264338 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-24 21:03:58 +00:00
Kostya Serebryany
4aa62c5d17 [libFuzzer] add a flag close_fd_mask so that we can silence spammy targets by closing stderr/stdout 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263831 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-18 20:58:29 +00:00
Kostya Serebryany
ab641c1abd [libFuzzer] improve -merge functionality 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263769 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-18 00:23:29 +00:00
Kostya Serebryany
bcace10c40 [libFuzzer] deprecate several flags 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263739 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-17 19:59:39 +00:00
Kostya Serebryany
2f2c2e3539 [libFuzzer] use max_len exactly equal to the max size of input. Fix 32-bit build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263518 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-15 01:28:00 +00:00
Kostya Serebryany
b30f32650e [libFuzzer] try to use max_len based on the items of the corpus instead of blindly defaulting to 64 bytes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263323 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-12 01:57:04 +00:00
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