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| author | Matt Morehouse <mascasa@google.com> | 2018-02-13 20:52:15 +0000 |
|---|---|---|
| committer | Matt Morehouse <mascasa@google.com> | 2018-02-13 20:52:15 +0000 |
| commit | cf74a02bf3b5785954b500ad6bc72b54d6b5a904 (patch) | |
| tree | 99ec59bec57268abc4587035324a35c10cb4b144 /lib/fuzzer/FuzzerFlags.def | |
| parent | 0d0f9187c4859bc25069712ea016a83fec0e0d73 (diff) | |
[libFuzzer] Set -experimental_len_control=1000 as default.
Summary:
Experiments using
https://github.com/google/fuzzer-test-suite/tree/master/engine-comparison
show a significant increase in coverage and reduction in corpus size
with this option enabled.
Addresses https://llvm.org/pr36371.
Reviewers: kcc
Reviewed By: kcc
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D42932
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@325050 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/fuzzer/FuzzerFlags.def')
| -rw-r--r-- | lib/fuzzer/FuzzerFlags.def | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/fuzzer/FuzzerFlags.def b/lib/fuzzer/FuzzerFlags.def index a32102a7d..7e722f415 100644 --- a/lib/fuzzer/FuzzerFlags.def +++ b/lib/fuzzer/FuzzerFlags.def @@ -17,7 +17,10 @@ FUZZER_FLAG_INT(runs, -1, FUZZER_FLAG_INT(max_len, 0, "Maximum length of the test input. " "If 0, libFuzzer tries to guess a good value based on the corpus " "and reports it. ") -FUZZER_FLAG_INT(experimental_len_control, 0, "experimental flag") +FUZZER_FLAG_INT(len_control, 1000, "Try generating small inputs first, " + "then try larger inputs over time. Specifies the rate at which the length " + "limit is increased (smaller == faster). If 0, immediately try inputs with " + "size up to max_len.") FUZZER_FLAG_INT(cross_over, 1, "If 1, cross over inputs.") FUZZER_FLAG_INT(mutate_depth, 5, "Apply this number of consecutive mutations to each input.") |