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authorKostya Serebryany <kcc@google.com>2017-09-07 05:33:05 +0000
committerKostya Serebryany <kcc@google.com>2017-09-07 05:33:05 +0000
commit3057bb94ded15a39001c6b7d4755f70a3f7ab1a8 (patch)
tree895d410161a9b66f49425d89813d244c29e22b8e /test/fuzzer
parent43832ee476535fef8b5fc14de39f7992c6357cfa (diff)
downloadcompiler-rt-3057bb94ded15a39001c6b7d4755f70a3f7ab1a8.tar.gz
[libFuzzer] simplify CustomCrossOverTest even more
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@312697 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/fuzzer')
-rw-r--r--test/fuzzer/CustomCrossOverTest.cpp8
-rw-r--r--test/fuzzer/fuzzer-customcrossover.test9
2 files changed, 10 insertions, 7 deletions
diff --git a/test/fuzzer/CustomCrossOverTest.cpp b/test/fuzzer/CustomCrossOverTest.cpp
index b47a63e1d..bd9afe774 100644
--- a/test/fuzzer/CustomCrossOverTest.cpp
+++ b/test/fuzzer/CustomCrossOverTest.cpp
@@ -15,12 +15,20 @@
static const char *Separator = "-########-";
static const char *Target = "A-########-B";
+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);
static const size_t TargetHash = std::hash<std::string>{}(std::string(Target));
size_t StrHash = std::hash<std::string>{}(Str);
+ // Ensure we have 'A' and 'B' in the corpus.
+ if (Size == 1 && *Data == 'A')
+ sink++;
+ if (Size == 1 && *Data == 'B')
+ sink--;
+
if (TargetHash == StrHash) {
std::cout << "BINGO; Found the target, exiting\n" << std::flush;
exit(1);
diff --git a/test/fuzzer/fuzzer-customcrossover.test b/test/fuzzer/fuzzer-customcrossover.test
index d0537a054..c32079f45 100644
--- a/test/fuzzer/fuzzer-customcrossover.test
+++ b/test/fuzzer/fuzzer-customcrossover.test
@@ -1,13 +1,8 @@
RUN: %cpp_compiler %S/CustomCrossOverTest.cpp -o %t-CustomCrossOverTest
-RUN: rm -rf %t/CustomCrossover
-RUN: mkdir -p %t/CustomCrossover
-RUN: echo -n A > %t/CustomCrossover/digits
-RUN: echo -n B > %t/CustomCrossover/chars
-RUN: not %t-CustomCrossOverTest -seed=1 -runs=100000 %t/CustomCrossover 2>&1 | FileCheck %s --check-prefix=CHECK_CO
+RUN: not %t-CustomCrossOverTest -seed=1 -runs=100000 2>&1 | FileCheck %s --check-prefix=CHECK_CO
Disable cross_over, verify that we can't find the target w/o it.
-RUN: %t-CustomCrossOverTest -seed=1 -runs=1000000 %t/CustomCrossover -cross_over=0 2>&1 | FileCheck %s --check-prefix=CHECK_NO_CO
-RUN: rm -rf %t/CustomCrossover
+RUN: %t-CustomCrossOverTest -seed=1 -runs=1000000 -cross_over=0 2>&1 | FileCheck %s --check-prefix=CHECK_NO_CO
CHECK_CO: In LLVMFuzzerCustomCrossover
CHECK_CO: BINGO