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[libFuzzer] remove unused option

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llvm-svn: 282971
This commit is contained in:
Kostya Serebryany 2016-09-30 22:29:57 +00:00
parent 5f6739ae19
commit 841b6806c7
7 changed files with 8 additions and 20 deletions
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1
lib/Fuzzer/FuzzerDriver.cpp
View File

@ -427,7 +427,6 @@ int FuzzerDriver(int *argc, char ***argv, UserCallback Callback) {
Options.PrintFinalStats = Flags.print_final_stats;
Options.PrintCorpusStats = Flags.print_corpus_stats;
Options.PrintCoverage = Flags.print_coverage;
Options.PruneCorpus = Flags.prune_corpus;
if (Flags.exit_on_src_pos)
Options.ExitOnSrcPos = Flags.exit_on_src_pos;

2
lib/Fuzzer/FuzzerFlags.def
View File

@ -92,8 +92,6 @@ FUZZER_FLAG_INT(detect_leaks, 1, "If 1, and if LeakSanitizer is enabled "
"try to detect memory leaks during fuzzing (i.e. not only at shut down).")
FUZZER_FLAG_INT(rss_limit_mb, 2048, "If non-zero, the fuzzer will exit upon"
"reaching this limit of RSS memory usage.")
FUZZER_FLAG_INT(prune_corpus, 1, "Prune corpus items without new coverage when "
"loading corpus.")
FUZZER_FLAG_STRING(exit_on_src_pos, "Exit if a newly found PC originates"
" from the given source location. Example: -exit_on_src_pos=foo.cc:123. "
"Used primarily for testing libFuzzer itself.")

3
lib/Fuzzer/FuzzerLoop.cpp
View File

@ -413,8 +413,7 @@ void Fuzzer::ShuffleAndMinimize(UnitVector *InitialCorpus) {
ShuffleCorpus(InitialCorpus);
for (const auto &U : *InitialCorpus) {
bool NewCoverage = RunOne(U);
if (!Options.PruneCorpus || NewCoverage) {
if (RunOne(U)) {
AddToCorpusAndMaybeRerun(U);
if (Options.Verbosity >= 2)
Printf("NEW0: %zd L %zd\n", MaxCoverage.BlockCoverage, U.size());

1
lib/Fuzzer/FuzzerOptions.h
View File

@ -49,7 +49,6 @@ struct FuzzingOptions {
bool PrintCorpusStats = false;
bool PrintCoverage = false;
bool DetectLeaks = true;
bool PruneCorpus = true;
};
} // namespace fuzzer

6
lib/Fuzzer/test/CustomCrossOverTest.cpp
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@ -15,10 +15,16 @@
static const char *Separator = "-_^_-";
static const char *Target = "012-_^_-abc";
static volatile int sink;
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
assert(Data);
std::string Str(reinterpret_cast<const char *>(Data), Size);
// Ensure that two different elements exist in the corpus.
if (Size && Data[0] == '0') sink++;
if (Size && Data[0] == 'a') sink--;
if (Str.find(Target) != std::string::npos) {
std::cout << "BINGO; Found the target, exiting\n";
exit(1);

2
lib/Fuzzer/test/fuzzer-customcrossover.test
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@ -2,7 +2,7 @@ RUN: rm -rf %t/CustomCrossover
RUN: mkdir -p %t/CustomCrossover
RUN: echo "0123456789" > %t/CustomCrossover/digits
RUN: echo "abcdefghij" > %t/CustomCrossover/chars
RUN: not LLVMFuzzer-CustomCrossOverTest -seed=1 -use_memcmp=0 -runs=100000 -prune_corpus=0 %t/CustomCrossover 2>&1 | FileCheck %s --check-prefix=LLVMFuzzerCustomCrossover
RUN: not LLVMFuzzer-CustomCrossOverTest -seed=1 -use_memcmp=0 -runs=100000 %t/CustomCrossover 2>&1 | FileCheck %s --check-prefix=LLVMFuzzerCustomCrossover
RUN: rm -rf %t/CustomCrossover
LLVMFuzzerCustomCrossover: In LLVMFuzzerCustomCrossover

13
lib/Fuzzer/test/fuzzer-prunecorpus.test
View File

@ -1,13 +0,0 @@
RUN: rm -rf %t/PruneCorpus
RUN: mkdir -p %t/PruneCorpus
RUN: echo a > %t/PruneCorpus/a
RUN: echo b > %t/PruneCorpus/b
RUN: LLVMFuzzer-EmptyTest %t/PruneCorpus -prune_corpus=1 -runs=0 2>&1 | FileCheck %s --check-prefix=PRUNE
RUN: LLVMFuzzer-EmptyTest %t/PruneCorpus -prune_corpus=0 -runs=0 2>&1 | FileCheck %s --check-prefix=NOPRUNE
RUN: rm -rf %t/PruneCorpus
PRUNE: READ units: 2
PRUNE: INITED{{.*}}units: 1
NOPRUNE: READ units: 2
NOPRUNE: INITED{{.*}}units: 2