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//===-- wrappers_cpp_test.cpp -----------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "gtest/gtest.h"
#include <condition_variable>
#include <mutex>
#include <thread>
void operator delete(void *, size_t) noexcept;
void operator delete[](void *, size_t) noexcept;
// Note that every Cxx allocation function in the test binary will be fulfilled
// by Scudo. See the comment in the C counterpart of this file.
extern "C" __attribute__((visibility("default"))) const char *
__scudo_default_options() {
return "quarantine_size_kb=256:thread_local_quarantine_size_kb=128:"
"quarantine_max_chunk_size=512:dealloc_type_mismatch=true";
}
template <typename T> static void testCxxNew() {
T *P = new T;
EXPECT_NE(P, nullptr);
memset(P, 0x42, sizeof(T));
EXPECT_DEATH(delete[] P, "");
delete P;
EXPECT_DEATH(delete P, "");
P = new T;
EXPECT_NE(P, nullptr);
memset(P, 0x42, sizeof(T));
operator delete(P, sizeof(T));
P = new (std::nothrow) T;
EXPECT_NE(P, nullptr);
memset(P, 0x42, sizeof(T));
delete P;
const size_t N = 16U;
T *A = new T[N];
EXPECT_NE(A, nullptr);
memset(A, 0x42, sizeof(T) * N);
EXPECT_DEATH(delete A, "");
delete[] A;
EXPECT_DEATH(delete[] A, "");
A = new T[N];
EXPECT_NE(A, nullptr);
memset(A, 0x42, sizeof(T) * N);
operator delete[](A, sizeof(T) * N);
A = new (std::nothrow) T[N];
EXPECT_NE(A, nullptr);
memset(A, 0x42, sizeof(T) * N);
delete[] A;
}
class Pixel {
public:
enum class Color { Red, Green, Blue };
int X = 0;
int Y = 0;
Color C = Color::Red;
};
TEST(ScudoWrappersCppTest, New) {
testCxxNew<bool>();
testCxxNew<uint8_t>();
testCxxNew<uint16_t>();
testCxxNew<uint32_t>();
testCxxNew<uint64_t>();
testCxxNew<float>();
testCxxNew<double>();
testCxxNew<long double>();
testCxxNew<Pixel>();
}
static std::mutex Mutex;
static std::condition_variable Cv;
static bool Ready = false;
static void stressNew() {
std::vector<uintptr_t *> V;
{
std::unique_lock<std::mutex> Lock(Mutex);
while (!Ready)
Cv.wait(Lock);
}
for (size_t I = 0; I < 256U; I++) {
const size_t N = std::rand() % 128U;
uintptr_t *P = new uintptr_t[N];
if (P) {
memset(P, 0x42, sizeof(uintptr_t) * N);
V.push_back(P);
}
}
while (!V.empty()) {
delete[] V.back();
V.pop_back();
}
}
TEST(ScudoWrappersCppTest, ThreadedNew) {
std::thread Threads[32];
for (size_t I = 0U; I < sizeof(Threads) / sizeof(Threads[0]); I++)
Threads[I] = std::thread(stressNew);
{
std::unique_lock<std::mutex> Lock(Mutex);
Ready = true;
Cv.notify_all();
}
for (auto &T : Threads)
T.join();
}
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