7018a1aaa4
[libFuzzer] disable leak detection if we have tried it for 1000 times w/o finding a leak
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llvm-svn: 267770
2016-04-27 19:52:34 +00:00
9ba19182be
[libFuzzer] remove dead code
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llvm-svn: 267455
2016-04-25 19:41:45 +00:00
1bfd583d82
[libFuzzer] added -detect_leaks flag (0 by default for now). When enabled, it will help finding leaks while fuzzing
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llvm-svn: 266838
2016-04-20 00:24:21 +00:00
ebb932d060
[libFuzzer] try to print correct time in seconds when reporting a timeout. Don't report timeouts while still loading the corpus.
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llvm-svn: 266693
2016-04-18 22:50:39 +00:00
94e29668b0
[libfuzzer] defensive assert
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llvm-svn: 265866
2016-04-08 23:32:24 +00:00
315167339e
[libFuzzer] don't report memory leaks if we are dying due to a timeout (just use _Exit instead of exit in the timeout callback)
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llvm-svn: 264237
2016-03-24 01:32:08 +00:00
d96b0c14fb
[Fuzzer] Guard no_sanitize_memory attributes behind __has_feature.
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Otherwise GCC fails to build it because it doesn't know the attribute.
llvm-svn: 263787
2016-03-18 14:19:19 +00:00
945761b8c2
[libFuzzer] improve -merge functionality
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llvm-svn: 263769
2016-03-18 00:23:29 +00:00
c5575aabd6
[libFuzzer] deprecate several flags
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llvm-svn: 263739
2016-03-17 19:59:39 +00:00
23dbc390af
[libFuzzer] add __attribute__((no_sanitize_memory)) to two functions that may be called from signal handler(s) or from msan. This will hopefully avoid msan false reports which I can't reproduce
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llvm-svn: 263737
2016-03-17 19:42:35 +00:00
64d24578d8
[libFuzzer] try to use max_len based on the items of the corpus instead of blindly defaulting to 64 bytes.
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llvm-svn: 263323
2016-03-12 01:57:04 +00:00
e483ed2825
[libFuzzer] when interrupted, call _Exit() instead of exit()
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llvm-svn: 262667
2016-03-03 22:36:37 +00:00
3d95dd9149
[libFuzzer] deprecate exit_on_first flag
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llvm-svn: 262417
2016-03-01 22:33:14 +00:00
228d5b1ce4
[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.
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llvm-svn: 262415
2016-03-01 22:19:21 +00:00
66ff0756e4
[libFuzzer] add -print_final_stats=1 flag
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llvm-svn: 262084
2016-02-26 22:42:23 +00:00
da63c1d09a
[libFuzzer] initial implementation of path coverage based on -fsanitize-coverage=trace-pc. This does not scale well yet, but already cracks FullCoverageSetTest in seconds
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llvm-svn: 262073
2016-02-26 21:33:56 +00:00
a35f7d383f
[libFuzzer] only read MaxLen bytes from every file in the corpus to speedup loading the corpus
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llvm-svn: 261267
2016-02-18 21:49:10 +00:00
cfbcf9097d
[libFuzzer] don't timeout when loading the corpus. Be a bit more verbose when loading large corpus.
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llvm-svn: 261143
2016-02-17 19:42:34 +00:00
8a5bef0fcf
[libFuzzer] remove std::vector operations from hot paths, NFC
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llvm-svn: 260829
2016-02-13 17:56:51 +00:00
1deb0498f5
[libFuzzer] don't require seed in fuzzer::Mutate, instead use the global Fuzzer object for fuzzer::Mutate. This makes custom mutators fast
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llvm-svn: 260810
2016-02-13 06:24:18 +00:00
7ec0c56e07
[libFuzzer] get rid of UserSuppliedFuzzer; NFC
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llvm-svn: 260798
2016-02-13 03:25:16 +00:00
22cc5e2375
[libFuzzer] provide a plain C interface for custom mutators (experimental)
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llvm-svn: 260794
2016-02-13 02:29:38 +00:00
b92602ada0
[libFuzzer] don't write the test unit when a leak is detected (since we don't know which unit causes the leak)
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llvm-svn: 259731
2016-02-04 00:02:17 +00:00
54a6363a8f
[libFuzzer] add -timeout_exitcode option
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llvm-svn: 259265
2016-01-29 23:30:07 +00:00
9768e7f06b
[libFuzzer] add -abort_on_timeout option
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llvm-svn: 258631
2016-01-23 19:34:19 +00:00
df91910bd4
Use std::piecewise_constant_distribution instead of ad-hoc binary search.
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Summary:
Fix the issue with the most recently discovered unit receiving much less attention.
Note: this is the second attempt (prev: r258473). Now, libc++ build is fixed.
Reviewers: aizatsky, kcc
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D16487
llvm-svn: 258571
2016-01-22 22:28:27 +00:00
d84f74cab7
Revert r258473 as it's breaking the build with libc++
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Reviewers: kcc
Differential Revision: http://reviews.llvm.org/D16441
llvm-svn: 258479
2016-01-22 03:21:52 +00:00
b008fd4d89
Use std::piecewise_constant_distribution instead of ad-hoc binary search.
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Summary:
Fix the issue with the most recently discovered unit receiving much less attention.
Note: I had to change the seed for one test to make it pass. Alternatively,
the number of runs could be increased. I believe that the average time of
'foo' discovery is not increased, just seed=1 was particularly convenient
for the previous PRNG scheme used.
Reviewers: aizatsky, kcc
Subscribers: llvm-commits, kcc
Differential Revision: http://reviews.llvm.org/D16419
llvm-svn: 258473
2016-01-22 01:32:34 +00:00
e313f8f8ff
[libfuzzer] use %p for printing addresses
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llvm-svn: 258370
2016-01-21 00:02:09 +00:00
628bc3ec00
[libFuzzer] move some code from public interface header to a non-public header. NFC
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llvm-svn: 257963
2016-01-16 00:04:36 +00:00
4b35874b2a
[libFuzzer] suggest a dictionary to the user of some of the trace-based dictionary entries were successful
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llvm-svn: 257736
2016-01-14 02:36:44 +00:00
98abb2c90a
[libFuzzer] make CurrentUnit a POD object instead of vector to avoid extra allocations
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llvm-svn: 257713
2016-01-13 23:46:01 +00:00
d50a3eedb4
[libFuzzer] make sure we find buffer overflow in the input buffer. Previously, re-using the same vector object was hiding buffer overflows (unless we used annotated vector)
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llvm-svn: 257701
2016-01-13 23:02:30 +00:00
72fdb32dac
[libFuzzer] make sure to update CurrentUnit when drilling
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llvm-svn: 257560
2016-01-13 01:58:27 +00:00
b65805a939
[libFuzzer] change the way trace-based mutations are applied. Instead of a custom code just rely on the automatically created dictionary
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llvm-svn: 257248
2016-01-09 03:08:58 +00:00
8b11f877e4
[libfuzzer] print_new_cov_pcs experimental option.
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Differential Revision: http://reviews.llvm.org/D15901
llvm-svn: 256882
2016-01-06 00:21:22 +00:00
27ab2d759f
[libFuzzer] make CrossOver just one of the other mutations
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llvm-svn: 256081
2015-12-19 02:49:09 +00:00
14c50288cc
[libFuzzer] print successfull mutations sequences
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llvm-svn: 256071
2015-12-19 01:09:49 +00:00
8617aaaac2
[libFuzzer] don't reload the corpus more than once every second
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llvm-svn: 254824
2015-12-05 02:09:22 +00:00
9e48cda9bc
[libFuzzer] compute base64 in-process instead of using an external lib. Since libFuzzer should not depend on anything, just re-implement base64 encoder. PR25746
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llvm-svn: 254784
2015-12-04 22:29:39 +00:00
71552ce64b
Libfuzzer: do not pass null into user function
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Differential Revision: http://reviews.llvm.org/D15098
llvm-svn: 254558
2015-12-02 22:43:53 +00:00
2d0ef14f5d
[libFuzzer] add a flag -exact_artifact_path
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llvm-svn: 254100
2015-11-25 21:40:46 +00:00
2a48c24d77
[libFuzzer] make libFuzzer build even with a compiler that does not have sanitizer headers
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llvm-svn: 253003
2015-11-13 01:54:40 +00:00
a9c2387192
output_csv libfuzzer option
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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
dc3135db05
[libFuzzer] experimental flag -drill (another search heuristic; Mike Aizatsky's idea)
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llvm-svn: 252838
2015-11-12 01:02:01 +00:00
5eab74e9bc
[libFuzzer] make libFuzzer link if there is no sanitizer coverage instrumentation (it will fail at start-up time)
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llvm-svn: 252533
2015-11-09 23:17:45 +00:00
b8d0da1386
[libFuzzer] print a bit fewer lines
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llvm-svn: 252123
2015-11-05 01:19:42 +00:00
e692621a9d
[libFuzzer] when choosing the next unit to mutate, give some preference to the most recent units (they are more likely to be interesting)
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llvm-svn: 252097
2015-11-04 23:22:25 +00:00
9cc3b0ddb6
[libFuzzer] add -merge flag to merge corpora
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llvm-svn: 251168
2015-10-24 01:16:40 +00:00
94660b3c36
[libFuzzer] remove some old code; also make __sanitizer_get_total_unique_caller_callee_pairs weak so that newer libFuzzer works with older asan
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llvm-svn: 251133
2015-10-23 18:37:58 +00:00
Kostya Serebryany