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[libFuzzer] respect max_len during merge 

llvm-svn: 318302
This commit is contained in:
Kostya Serebryany 2017-11-15 16:42:52 +00:00
parent 58f2656d7e
commit 8eb9ca2580
2 changed files with 5 additions and 1 deletions
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2
compiler-rt/lib/fuzzer/FuzzerMerge.cpp
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@ -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);

4
compiler-rt/test/fuzzer/merge.test
View File

@ -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/*