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* [libFuzzer] fixing the botKostya Serebryany2016-02-271-1/+1
| | | | llvm-svn: 262106
* [libFuzzer] speedup path coverage handlingKostya Serebryany2016-02-272-18/+19
| | | | llvm-svn: 262102
* [libFuzzer] add -print_final_stats=1 flagKostya Serebryany2016-02-266-3/+41
| | | | llvm-svn: 262084
* [libFuzzer] initial implementation of path coverage based on ↵Kostya Serebryany2016-02-267-0/+103
| | | | | | -fsanitize-coverage=trace-pc. This does not scale well yet, but already cracks FullCoverageSetTest in seconds llvm-svn: 262073
* [libFuzzer] only read MaxLen bytes from every file in the corpus to speedup ↵Kostya Serebryany2016-02-184-12/+18
| | | | | | loading the corpus llvm-svn: 261267
* [libFuzzer] fix the libFuzzer bot Kostya Serebryany2016-02-182-2/+2
| | | | llvm-svn: 261184
* [libFuzzer] don't timeout when loading the corpus. Be a bit more verbose ↵Kostya Serebryany2016-02-172-1/+7
| | | | | | when loading large corpus. llvm-svn: 261143
* [libFuzzer] remove std::vector operations from hot paths, NFCKostya Serebryany2016-02-135-31/+38
| | | | llvm-svn: 260829
* [libFuzzer] don't require seed in fuzzer::Mutate, instead use the global ↵Kostya Serebryany2016-02-135-12/+21
| | | | | | Fuzzer object for fuzzer::Mutate. This makes custom mutators fast llvm-svn: 260810
* [libFuzzer] remove the C++-ish variant of FuzzerDriver from the interfaceKostya Serebryany2016-02-132-12/+7
| | | | llvm-svn: 260801
* [libFuzzer] simplify CTOR of MutationDispatcherKostya Serebryany2016-02-132-21/+21
| | | | llvm-svn: 260800
* [libFuzzer] get rid of MutationDispatcher::Impl (simplify the code; NFC)Kostya Serebryany2016-02-132-136/+114
| | | | llvm-svn: 260799
* [libFuzzer] get rid of UserSuppliedFuzzer; NFCKostya Serebryany2016-02-139-97/+41
| | | | llvm-svn: 260798
* [libFuzzer] simplify the code around Random. NFCKostya Serebryany2016-02-135-87/+39
| | | | llvm-svn: 260797
* [libFuzzer] remove UserSuppliedFuzzer from the interface (it was a bad idea).Kostya Serebryany2016-02-136-160/+68
| | | | llvm-svn: 260796
* [libFuzzer] provide a plain C interface for custom mutators (experimental)Kostya Serebryany2016-02-136-2/+65
| | | | llvm-svn: 260794
* [libFuzzer] make -runs=N flag also affect the simple runner (will execute ↵Kostya Serebryany2016-02-124-3/+28
| | | | | | every input N times) llvm-svn: 260649
* [libfuzzer] Removing coverage-related flags from asan options.Mike Aizatsky2016-02-111-3/+1
| | | | | | | | | | | 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 llvm-svn: 260611
* [libFuzzer] hot fix a testKostya Serebryany2016-02-041-1/+1
| | | | llvm-svn: 259732
* [libFuzzer] don't write the test unit when a leak is detected (since we ↵Kostya Serebryany2016-02-044-0/+16
| | | | | | don't know which unit causes the leak) llvm-svn: 259731
* [libFuzzer] don't create too many trace-based mutations as it may be too slowKostya Serebryany2016-02-021-2/+18
| | | | llvm-svn: 259600
* [libFuzzer] allow passing 1 or more files as individual inputsKostya Serebryany2016-02-024-2/+48
| | | | llvm-svn: 259459
* [libFuzzer] fail if the corpus dir does not existKostya Serebryany2016-02-022-1/+4
| | | | llvm-svn: 259454
* [libFuzzer] add -timeout_exitcode optionKostya Serebryany2016-01-295-1/+6
| | | | llvm-svn: 259265
* [libFuzzer] re-enable test for -abort_on_timeout=1, this time protecting ↵Kostya Serebryany2016-01-291-1/+1
| | | | | | from ASAN_OPTIONS set outside llvm-svn: 259263
* Temporary disable broken fuzzer/timeout tests.Ivan Krasin2016-01-251-1/+1
| | | | | | | | Reviewers: kcc Differential Revision: http://reviews.llvm.org/D16543 llvm-svn: 258702
* [libFuzzer] add -abort_on_timeout optionKostya Serebryany2016-01-235-0/+6
| | | | llvm-svn: 258631
* [libFuzzer] add more fields to DictionaryEntry to count the number of uses ↵Kostya Serebryany2016-01-222-29/+52
| | | | | | and successes llvm-svn: 258589
* Use std::piecewise_constant_distribution instead of ad-hoc binary search.Ivan Krasin2016-01-223-63/+106
| | | | | | | | | | | | | | | 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
* Revert r258473 as it's breaking the build with libc++Ivan Krasin2016-01-224-57/+17
| | | | | | | | Reviewers: kcc Differential Revision: http://reviews.llvm.org/D16441 llvm-svn: 258479
* Use std::piecewise_constant_distribution instead of ad-hoc binary search.Ivan Krasin2016-01-224-17/+57
| | | | | | | | | | | | | | | | | | 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
* [libFuzzer] don't do expensive memmem if the result will not be usedKostya Serebryany2016-01-221-0/+2
| | | | llvm-svn: 258462
* [libFuzzer] don't use std::vector in one more hot pathKostya Serebryany2016-01-211-6/+29
| | | | llvm-svn: 258380
* [libfuzzer] use %p for printing addressesMike Aizatsky2016-01-211-1/+1
| | | | llvm-svn: 258370
* [libFuzzer] use std::mt19937 for generating random numbers by default. Fix ↵Kostya Serebryany2016-01-195-8/+43
| | | | | | MyStoll to handle negative values. Use std::any_of instead of std::find_if llvm-svn: 258178
* [libFuzzer] replace vector with a simpler data structure in the Dictionaries ↵Kostya Serebryany2016-01-166-53/+84
| | | | | | to avoid memory allocations on hot path llvm-svn: 257985
* [libFuzzer] introduce LLVMFuzzerInitializeKostya Serebryany2016-01-166-2/+43
| | | | llvm-svn: 257980
* [libFuzzer] move some code from public interface header to a non-public ↵Kostya Serebryany2016-01-164-79/+90
| | | | | | header. NFC llvm-svn: 257963
* [libFuzzer] do mutations based on memcmp/strcmp interceptors under a ↵Kostya Serebryany2016-01-155-25/+36
| | | | | | separate flag (-use_memcmp, default=1) llvm-svn: 257873
* [libFuzzer] use custom stol; also introduce __libfuzzer_is_present so that ↵Kostya Serebryany2016-01-151-1/+17
| | | | | | users can check for its presence. llvm-svn: 257848
* [libFuzzer] suggest a dictionary to the user of some of the trace-based ↵Kostya Serebryany2016-01-149-23/+103
| | | | | | dictionary entries were successful llvm-svn: 257736
* [libFuzzer] make CurrentUnit a POD object instead of vector to avoid extra ↵Kostya Serebryany2016-01-134-45/+51
| | | | | | allocations llvm-svn: 257713
* [libFuzzer] make sure we find buffer overflow in the input buffer. ↵Kostya Serebryany2016-01-136-17/+48
| | | | | | Previously, re-using the same vector object was hiding buffer overflows (unless we used annotated vector) llvm-svn: 257701
* [libFuzzer] make sure to update CurrentUnit when drillingKostya Serebryany2016-01-131-1/+4
| | | | llvm-svn: 257560
* [libFuzzer] add a macro LLVM_FUZZER_DEFINES_SANITIZER_WEAK_HOOOKSKostya Serebryany2016-01-121-0/+8
| | | | llvm-svn: 257482
* [libFuzzer] when a new unit is discovered using a dictionary, print all used ↵Kostya Serebryany2016-01-124-30/+35
| | | | | | dictionary entries llvm-svn: 257435
* [libFuzzer] add various debug prints. Also don't mutate based on a cmp trace ↵Kostya Serebryany2016-01-121-5/+28
| | | | | | like (a eq a) or (a neq a) llvm-svn: 257434
* [libFuzzer] extend the weak memcmp/strcmp/strncmp interceptors to receive ↵Kostya Serebryany2016-01-121-3/+6
| | | | | | the result of the computations. With that, don't do any mutations if memcmp/etc returned 0 llvm-svn: 257423
* [libFuzzer] debug prints in tracingKostya Serebryany2016-01-091-2/+27
| | | | llvm-svn: 257249
* [libFuzzer] change the way trace-based mutations are applied. Instead of a ↵Kostya Serebryany2016-01-098-60/+33
| | | | | | custom code just rely on the automatically created dictionary llvm-svn: 257248
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