82 lines · cpp
1//===-- tsan_string.cpp ---------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// This file is a part of ThreadSanitizer (TSan), a race detector.10//11//===----------------------------------------------------------------------===//12#include "tsan_test_util.h"13#include "gtest/gtest.h"14#include <string.h>15 16namespace __tsan {17 18TEST_F(ThreadSanitizer, Memcpy) {19 char data0[7] = {1, 2, 3, 4, 5, 6, 7};20 char data[7] = {42, 42, 42, 42, 42, 42, 42};21 MainThread().Memcpy(data+1, data0+1, 5);22 EXPECT_EQ(data[0], 42);23 EXPECT_EQ(data[1], 2);24 EXPECT_EQ(data[2], 3);25 EXPECT_EQ(data[3], 4);26 EXPECT_EQ(data[4], 5);27 EXPECT_EQ(data[5], 6);28 EXPECT_EQ(data[6], 42);29 MainThread().Memset(data+1, 13, 5);30 EXPECT_EQ(data[0], 42);31 EXPECT_EQ(data[1], 13);32 EXPECT_EQ(data[2], 13);33 EXPECT_EQ(data[3], 13);34 EXPECT_EQ(data[4], 13);35 EXPECT_EQ(data[5], 13);36 EXPECT_EQ(data[6], 42);37}38 39TEST_F(ThreadSanitizer, MemcpyRace1) {40 char *data = new char[10];41 char *data1 = new char[10];42 char *data2 = new char[10];43 ScopedThread t1, t2;44 t1.Memcpy(data, data1, 10);45 t2.Memcpy(data, data2, 10, true);46}47 48TEST_F(ThreadSanitizer, MemcpyRace2) {49 char *data = new char[10];50 char *data1 = new char[10];51 char *data2 = new char[10];52 ScopedThread t1, t2;53 t1.Memcpy(data+5, data1, 1);54 t2.Memcpy(data+3, data2, 4, true);55}56 57TEST_F(ThreadSanitizer, MemcpyRace3) {58 char *data = new char[10];59 char *data1 = new char[10];60 char *data2 = new char[10];61 ScopedThread t1, t2;62 t1.Memcpy(data, data1, 10);63 t2.Memcpy(data1, data2, 10, true);64}65 66TEST_F(ThreadSanitizer, MemcpyStack) {67 char *data = new char[10];68 char *data1 = new char[10];69 ScopedThread t1, t2;70 t1.Memcpy(data, data1, 10);71 t2.Memcpy(data, data1, 10, true);72}73 74TEST_F(ThreadSanitizer, MemsetRace1) {75 char *data = new char[10];76 ScopedThread t1, t2;77 t1.Memset(data, 1, 10);78 t2.Memset(data, 2, 10, true);79}80 81} // namespace __tsan82