Kostya Serebryany
872c556fa8
[libFuzzer] add one more mutator: Mutate_ChangeASCIIInteger
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247027 91177308-0d34-0410-b5e6-96231b3b80d8
2015-09-08 17:19:31 +00:00
Kostya Serebryany
c18fae603d
[libFuzzer] when a single mutation fails try a few more times with other mutations before returning un-mutated data
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246828 91177308-0d34-0410-b5e6-96231b3b80d8
2015-09-04 00:40:29 +00:00
Kostya Serebryany
6cc3ed7cdd
[libFuzzer] actually make the dictionaries work (+docs)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246825 91177308-0d34-0410-b5e6-96231b3b80d8
2015-09-04 00:12:11 +00:00
Kostya Serebryany
bf6bd487d5
[libFuzzer] refactor the mutation functions so that they are now methods of a class. NFC
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246808 91177308-0d34-0410-b5e6-96231b3b80d8
2015-09-03 21:24:19 +00:00
Kostya Serebryany
596885b016
[libFuzzer] add one more mutation strategy: byte shuffling
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244188 91177308-0d34-0410-b5e6-96231b3b80d8
2015-08-06 01:29:13 +00:00
Kostya Serebryany
0dd9ec77d1
[libFuzzer] more refactoring of the Mutator and adding tests to it
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243818 91177308-0d34-0410-b5e6-96231b3b80d8
2015-08-01 02:23:06 +00:00
Kostya Serebryany
8d4c8061c9
[libFuzzer] start refactoring the Mutator and adding tests to it
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243817 91177308-0d34-0410-b5e6-96231b3b80d8
2015-08-01 01:42:51 +00:00
Kostya Serebryany
33a9a09cd7
[libFuzzer] allow users to supply their own implementation of rand
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243078 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-24 01:06:40 +00:00
Kostya Serebryany
ebada2c2bc
[lib/Fuzzer] extend the fuzzer interface to allow user-supplied mutators
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238059 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-22 22:35:31 +00:00
Kostya Serebryany
0b1ec08b77
[fuzzer] properly annotate fallthrough, add one more entry to FAQ
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229880 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-19 18:21:12 +00:00
Kostya Serebryany
eb884daa38
[fuzzer] make multi-process execution more verbose; fix mutation to actually respect mutation depth and to never produce empty units
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228170 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-04 19:10:20 +00:00
Aaron Ballman
94879c0134
Reverting r227452, which adds back the fuzzer library. Now excluding the fuzzer library based on LLVM_USE_SANITIZE_COVERAGE being set or unset.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227464 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-29 16:58:29 +00:00
Aaron Ballman
f316f2ea52
Temporarily reverting the fuzzer library as it causes too many build issues for MSVC users. This reverts: 227445, 227395, 227389, 227357, 227254, 227252
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227452 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-29 15:49:22 +00:00
Kostya Serebryany
c9baf3befb
Add a Fuzzer library
...
Summary:
A simple genetic in-process coverage-guided fuzz testing library.
I've used this fuzzer to test clang-format
(it found 12+ bugs, thanks djasper@ for the fixes!)
and it may also help us test other parts of LLVM.
So why not keep it in the LLVM repository?
I plan to add the cmake build rules later (in a separate patch, if that's ok)
and also add a clang-format-fuzzer target.
See README.txt for details.
Test Plan: Tests will follow separately.
Reviewers: djasper, chandlerc, rnk
Reviewed By: rnk
Subscribers: majnemer, ygribov, dblaikie, llvm-commits
Differential Revision: http://reviews.llvm.org/D7184
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227252 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-27 22:08:41 +00:00
