diff options
| -rw-r--r-- | llvm/lib/Fuzzer/FuzzerLoop.cpp | 1 | ||||
| -rw-r--r-- | llvm/lib/Fuzzer/test/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | llvm/lib/Fuzzer/test/LeakTest.cpp | 11 | ||||
| -rw-r--r-- | llvm/lib/Fuzzer/test/fuzzer.test | 3 |
4 files changed, 16 insertions, 0 deletions
diff --git a/llvm/lib/Fuzzer/FuzzerLoop.cpp b/llvm/lib/Fuzzer/FuzzerLoop.cpp index 56c9c05fceb..7dc48e63641 100644 --- a/llvm/lib/Fuzzer/FuzzerLoop.cpp +++ b/llvm/lib/Fuzzer/FuzzerLoop.cpp @@ -75,6 +75,7 @@ void Fuzzer::StaticDeathCallback() { } void Fuzzer::DeathCallback() { + if (!CurrentUnitSize) return; Printf("DEATH:\n"); if (CurrentUnitSize <= kMaxUnitSizeToPrint) { PrintHexArray(CurrentUnitData, CurrentUnitSize, "\n"); diff --git a/llvm/lib/Fuzzer/test/CMakeLists.txt b/llvm/lib/Fuzzer/test/CMakeLists.txt index 3533d3b2a41..c9ccf9b565e 100644 --- a/llvm/lib/Fuzzer/test/CMakeLists.txt +++ b/llvm/lib/Fuzzer/test/CMakeLists.txt @@ -20,6 +20,7 @@ set(Tests FullCoverageSetTest InitializeTest MemcmpTest + LeakTest NullDerefTest RepeatedMemcmp SimpleCmpTest diff --git a/llvm/lib/Fuzzer/test/LeakTest.cpp b/llvm/lib/Fuzzer/test/LeakTest.cpp new file mode 100644 index 00000000000..7d153e45691 --- /dev/null +++ b/llvm/lib/Fuzzer/test/LeakTest.cpp @@ -0,0 +1,11 @@ +// Test with a leak. +#include <cstdint> +#include <cstddef> + +static volatile void *Sink; + +extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { + Sink = new int; + return 0; +} + diff --git a/llvm/lib/Fuzzer/test/fuzzer.test b/llvm/lib/Fuzzer/test/fuzzer.test index 3a617784b95..d826fd72567 100644 --- a/llvm/lib/Fuzzer/test/fuzzer.test +++ b/llvm/lib/Fuzzer/test/fuzzer.test @@ -57,3 +57,6 @@ SINGLE_INPUTS: LLVMFuzzer-SimpleTest: Running 2 inputs. SINGLE_INPUTS: aaa: SINGLE_INPUTS: bbb: +RUN: LLVMFuzzer-LeakTest -runs=10 2>&1 | FileCheck %s --check-prefix=LEAK +LEAK: ERROR: LeakSanitizer: detected memory leaks +LEAK-NOT: DEATH: |
