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[libFuzzer] add ThreadedLeakTest

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llvm-svn: 275582
This commit is contained in:
Kostya Serebryany 2016-07-15 17:19:43 +00:00
parent 80d5684bf3
commit 58e21cf3cd
3 changed files with 24 additions and 0 deletions
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1
lib/Fuzzer/test/CMakeLists.txt
View File

@ -91,6 +91,7 @@ set(Tests
StrcmpTest
StrncmpTest
SwitchTest
ThreadedLeakTest
ThreadedTest
TimeoutTest
)

18
lib/Fuzzer/test/ThreadedLeakTest.cpp Normal file
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@ -0,0 +1,18 @@
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// The fuzzer should find a leak in a non-main thread.
#include <cstdint>
#include <cstddef>
#include <thread>
static volatile int *Sink;
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
if (Size == 0) return 0;
if (Data[0] != 'F') return 0;
std::thread T([&] { Sink = new int; });
T.join();
return 0;
}

5
lib/Fuzzer/test/fuzzer-leak.test
View File

@ -2,6 +2,8 @@ REQUIRES: lsan
RUN: not LLVMFuzzer-LeakTest -runs=100000 -detect_leaks=1 2>&1 | FileCheck %s --check-prefix=LEAK_DURING
LEAK_DURING: ERROR: LeakSanitizer: detected memory leaks
LEAK_DURING: Direct leak of 4 byte(s) in 1 object(s) allocated from:
LEAK_DURING: INFO: to ignore leaks on libFuzzer side use -detect_leaks=0
LEAK_DURING: Test unit written to ./leak-
LEAK_DURING-NOT: DONE
LEAK_DURING-NOT: Done
@ -12,6 +14,8 @@ LEAK_IN_CORPUS: INFO: a leak has been found in the initial corpus.
RUN: not LLVMFuzzer-LeakTest -runs=100000 -detect_leaks=0 2>&1 | FileCheck %s --check-prefix=LEAK_AFTER
RUN: not LLVMFuzzer-LeakTest -runs=100000 2>&1 | FileCheck %s --check-prefix=LEAK_DURING
RUN: not LLVMFuzzer-ThreadedLeakTest -runs=100000 -detect_leaks=0 2>&1 | FileCheck %s --check-prefix=LEAK_AFTER
RUN: not LLVMFuzzer-ThreadedLeakTest -runs=100000 2>&1 | FileCheck %s --check-prefix=LEAK_DURING
LEAK_AFTER: Done 100000 runs in
LEAK_AFTER: ERROR: LeakSanitizer: detected memory leaks
@ -24,3 +28,4 @@ LEAK_TIMEOUT-NOT: LeakSanitizer
RUN: LLVMFuzzer-AccumulateAllocationsTest -detect_leaks=1 -runs=100000 2>&1 | FileCheck %s --check-prefix=ACCUMULATE_ALLOCS
ACCUMULATE_ALLOCS: INFO: libFuzzer disabled leak detection after every mutation