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60 Commits

Author SHA1 Message Date
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
Kostya Serebryany
a9d3e6b2dc [libFuzzer] add two flags, -tbm_depth and -tbm_width to control how the trace-based-mutations are applied 
llvm-svn: 244712
 2015-08-12 01:55:37 +00:00
Kostya Serebryany
1c2b96fda9 [libFuzzer] add -only_ascii flag 
llvm-svn: 244559
 2015-08-11 01:44:42 +00:00
Kostya Serebryany
80051e17c0 [libFuzzer] add option -report_slow_units=Nsec to control when slow units are printed 
llvm-svn: 244152
 2015-08-05 21:43:48 +00:00
Kostya Serebryany
02e05d0662 [libFuzzer] allow users to supply their own implementation of rand 
llvm-svn: 243078
 2015-07-24 01:06:40 +00:00
Kostya Serebryany
c28d1607f2 [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. 
llvm-svn: 238078
 2015-05-23 01:07:46 +00:00
Kostya Serebryany
3afd2456cd [lib/Fuzzer] remove -use_coverage_pairs=1, an experimental feature that is unlikely to ever scale 
llvm-svn: 238063
 2015-05-22 22:47:03 +00:00
Kostya Serebryany
2ee531c66a [lib/Fuzzer] extend the fuzzer interface to allow user-supplied mutators 
llvm-svn: 238059
 2015-05-22 22:35:31 +00:00
Kostya Serebryany
a05448768c [lib/Fuzzer] ignore flags that start with --; use git pull --rebase instead of just git pull 
llvm-svn: 237950
 2015-05-21 20:39:13 +00:00
Kostya Serebryany
46c887ece3 [lib/Fuzzer] change the meaning of -timeout flag: now timeout is applied to every unit of work separately 
llvm-svn: 237735
 2015-05-19 22:12:57 +00:00
Kostya Serebryany
a98902fdfc [lib/Fuzzer] when -sync_command=<CMD> is given, periodically execute 'CMD CORPUS' to synchronize with other processes 
llvm-svn: 237617
 2015-05-18 21:34:20 +00:00
Kostya Serebryany
354905a212 [lib/Fuzzer] guess the right number of workers if -jobs=N is given but -workers=M is not. Update the docs. 
llvm-svn: 237163
 2015-05-12 18:51:57 +00:00