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[lib/Fuzzer] more efficient reload logic; also don't spam git too much

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237649 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Kostya Serebryany 2015-05-19 01:06:07 +00:00
parent c3ccd67d72
commit 3b3cbed1b0
3 changed files with 11 additions and 8 deletions
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3
lib/Fuzzer/FuzzerInternal.h
View File

@ -16,7 +16,6 @@
#include <string>
#include <vector>
#include <unordered_set>
#include <set>
#include "FuzzerInterface.h"
@ -132,7 +131,7 @@ class Fuzzer {
size_t TotalNumberOfRuns = 0;
std::vector<Unit> Corpus;
std::set<Unit> UnitsAddedAfterInitialLoad;
std::unordered_set<std::string> UnitHashesAddedToCorpus;
std::unordered_set<uintptr_t> FullCoverageSets;
std::unordered_set<uint64_t> CoveragePairs;

14
lib/Fuzzer/FuzzerLoop.cpp
View File

@ -99,13 +99,15 @@ void Fuzzer::RereadOutputCorpus() {
for (auto &X : AdditionalCorpus) {
if (X.size() > (size_t)Options.MaxLen)
X.resize(Options.MaxLen);
if (UnitsAddedAfterInitialLoad.insert(X).second) {
Corpus.push_back(X);
if (UnitHashesAddedToCorpus.insert(Hash(X)).second) {
CurrentUnit.clear();
CurrentUnit.insert(CurrentUnit.begin(), X.begin(), X.end());
size_t NewCoverage = RunOne(CurrentUnit);
if (NewCoverage && Options.Verbosity >= 1)
PrintStats("RELOAD", NewCoverage);
if (NewCoverage) {
Corpus.push_back(X);
if (Options.Verbosity >= 1)
PrintStats("RELOAD", NewCoverage);
}
}
}
}
@ -142,6 +144,8 @@ void Fuzzer::ShuffleAndMinimize() {
}
}
Corpus = NewCorpus;
for (auto &X : Corpus)
UnitHashesAddedToCorpus.insert(Hash(X));
PrintStats("INITED", MaxCov);
}
@ -292,7 +296,7 @@ void Fuzzer::SaveCorpus() {
void Fuzzer::ReportNewCoverage(size_t NewCoverage, const Unit &U) {
if (!NewCoverage) return;
Corpus.push_back(U);
UnitsAddedAfterInitialLoad.insert(U);
UnitHashesAddedToCorpus.insert(Hash(U));
PrintStats("NEW ", NewCoverage, "");
if (Options.Verbosity) {
std::cerr << " L: " << U.size();

2
lib/Fuzzer/pull_and_push_fuzz_corpus.sh
View File

@ -9,7 +9,7 @@ cd $1
git add *
git commit -m "fuzz test corpus"
git pull --no-edit
for((attempt=0; attempt<100; attempt++)); do
for((attempt=0; attempt<5; attempt++)); do
echo GIT PUSH $1 ATTEMPT $attempt
if $(git push); then break; fi
git pull --no-edit