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authorKostya Serebryany <kcc@google.com>2017-11-15 16:42:52 +0000
committerKostya Serebryany <kcc@google.com>2017-11-15 16:42:52 +0000
commitfcc081e71ac517e6f21e20144300f019ce88ecc4 (patch)
tree8fffa49c4fed76822ec08ee92c9a24b9745e86ac
parent0066b15e48e7b40e43051c9241760e7066582a96 (diff)
[libFuzzer] respect max_len during merge
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318302 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/fuzzer/FuzzerMerge.cpp2
-rw-r--r--test/fuzzer/merge.test4
2 files changed, 5 insertions, 1 deletions
diff --git a/lib/fuzzer/FuzzerMerge.cpp b/lib/fuzzer/FuzzerMerge.cpp
index 9b21a0917..934871b15 100644
--- a/lib/fuzzer/FuzzerMerge.cpp
+++ b/lib/fuzzer/FuzzerMerge.cpp
@@ -379,7 +379,7 @@ void Fuzzer::CrashResistantMerge(const Vector<std::string> &Args,
Printf("MERGE-OUTER: %zd new files with %zd new features added\n",
NewFiles.size(), NumNewFeatures);
for (auto &F: NewFiles)
- WriteToOutputCorpus(FileToVector(F));
+ WriteToOutputCorpus(FileToVector(F, MaxInputLen));
// We are done, delete the control file if it was a temporary one.
if (!MergeControlFilePathOrNull)
RemoveFile(CFPath);
diff --git a/test/fuzzer/merge.test b/test/fuzzer/merge.test
index 262f26e5b..d77a4473b 100644
--- a/test/fuzzer/merge.test
+++ b/test/fuzzer/merge.test
@@ -58,7 +58,11 @@ MERGE_WITH_CRASH: MERGE-OUTER: succesfull in 2 attempt(s)
MERGE_WITH_CRASH: MERGE-OUTER: 3 new files
# Check that we actually limit the size with max_len
+RUN: rm %t/T1/*
+RUN: echo 'FUZZER' > %t/T2/FUZZER
RUN: %t-FullCoverageSetTest -merge=1 %t/T1 %t/T2 -max_len=5 2>&1 | FileCheck %s --check-prefix=MERGE_LEN5
+RUN: not grep FUZZER %t/T1/*
+RUN: grep FUZZE %t/T1/*
MERGE_LEN5: MERGE-OUTER: succesfull in 1 attempt(s)
RUN: rm -rf %t/T1/* %t/T2/*