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240 Commits

Author SHA1 Message Date
Mike Aizatsky
f4643f6392 [libfuzzer] adding license headers to cpp files 
Differential Revision: http://reviews.llvm.org/D18705

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265174 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-04-01 18:38:58 +00:00
Kostya Serebryany
7544ffc130 [libFuzzer] more docs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264803 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-29 23:07:36 +00:00
Kostya Serebryany
3d4018c32c [libFuzzer] use fflush after every Printf 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264459 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-25 20:31:26 +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
c09d592889 [libFuzzer] don't report memory leaks if we are dying due to a timeout (just use _Exit instead of exit in the timeout callback) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264237 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-24 01:32:08 +00:00
Kostya Serebryany
f4b00d0631 [libFuzzer] use fdopen+vfprintf instead of fsnprintf+write 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264230 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-24 00:57:32 +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
Benjamin Kramer
3ac2aa592d [Fuzzer] Guard no_sanitize_memory attributes behind __has_feature. 
Otherwise GCC fails to build it because it doesn't know the attribute.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263787 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-18 14:19:19 +00:00
Kostya Serebryany
2b341f70ca [libFuzzer] read corpus dirs recursively 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263773 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-18 01:36:00 +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
227603719a [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 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263737 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-17 19:42:35 +00:00
Mike Aizatsky
fa4edb682f [libfuzzer] speeding up corpus load 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263591 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-15 21:47:21 +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
Mike Aizatsky
c0d25bf9b8 [libfuzzer] adding std:string to allowed adaptable argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262757 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-04 23:18:01 +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
Mike Aizatsky
d7ee221d4d [libfuzzer] arbitrary function adapter. 
The adapter automates converting sequence of bytes into arbitrary
arguments.

Differential Revision: http://reviews.llvm.org/D17829

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262673 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-03 23:45:29 +00:00
Kostya Serebryany
2ef77db652 [libFuzzer] when interrupted, call _Exit() instead of exit() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262667 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-03 22:36:37 +00:00
Kostya Serebryany
c2ecfd6993 [libFuzzer] add -Werror for libFuzzer build rule 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262517 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-02 21:08:16 +00:00
Dmitry Vyukov
f984411dc5 libfuzzer: fix compiler warnings 
- unused sigaction/setitimer result (used in assert)
- unchecked fscanf return value
- signed/unsigned comparison



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262472 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-02 09:54:40 +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
8ca429497a [libFuzzer] remove FuzzerSanitizerOptions.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262354 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-01 17:46:32 +00:00
Rafael Espindola
93ed620d27 Refactor duplicated code for linking with pthread. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262344 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-03-01 15:54:40 +00:00
Kostya Serebryany
0b3b8cba94 [libFuzzer] fixing the bot 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262106 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-27 03:14:23 +00:00
Kostya Serebryany
a6b4efd1d0 [libFuzzer] speedup path coverage handling 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262102 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-27 01:50:16 +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
1ff29eb9ca [libFuzzer] initial implementation of path coverage based on -fsanitize-coverage=trace-pc. This does not scale well yet, but already cracks FullCoverageSetTest in seconds 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262073 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-26 21:33:56 +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
b73d5ba466 [libFuzzer] fix the libFuzzer bot 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@261184 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-18 02:02:40 +00:00
Kostya Serebryany
73b0e08885 [libFuzzer] don't timeout when loading the corpus. Be a bit more verbose when loading large corpus. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@261143 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-17 19:42:34 +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
49429cee7f [libFuzzer] don't require seed in fuzzer::Mutate, instead use the global Fuzzer object for fuzzer::Mutate. This makes custom mutators fast 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260810 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-13 06:24:18 +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
d1eacb8ffc [libFuzzer] simplify CTOR of MutationDispatcher 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260800 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-13 03:46:26 +00:00
Kostya Serebryany
1d35d47455 [libFuzzer] get rid of MutationDispatcher::Impl (simplify the code; NFC) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260799 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-13 03:37:24 +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
e6d7e3d948 [libFuzzer] provide a plain C interface for custom mutators (experimental) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260794 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-13 02:29:38 +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
Mike Aizatsky
dff48e6497 [libfuzzer] Removing coverage-related flags from asan options. 
Summary:
Reasons to remove are twofold:
 - we don't really need coverage=1 for libfuzzer operation
 - makes controlling coverage for fuzzer processes non-trivial.

Differential Revision: http://reviews.llvm.org/D17168

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260611 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-11 22:20:34 +00:00
Kostya Serebryany
5a91878f44 [libFuzzer] hot fix a test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259732 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-04 00:12:28 +00:00
Kostya Serebryany
598f7017b4 [libFuzzer] don't write the test unit when a leak is detected (since we don't know which unit causes the leak) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259731 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-04 00:02:17 +00:00
Kostya Serebryany
7cec6c634b [libFuzzer] don't create too many trace-based mutations as it may be too slow 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259600 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-02 23:17:45 +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
05de8e95f6 [libFuzzer] fail if the corpus dir does not exist 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259454 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-02-02 02:07:26 +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
fb614ec4d4 [libFuzzer] re-enable test for -abort_on_timeout=1, this time protecting from ASAN_OPTIONS set outside 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259263 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-01-29 23:19:00 +00:00