| //===-- msan_test.cc ------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file is a part of MemorySanitizer. |
| // |
| // MemorySanitizer unit tests. |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef MSAN_EXTERNAL_TEST_CONFIG |
| #include "msan_test_config.h" |
| #endif // MSAN_EXTERNAL_TEST_CONFIG |
| |
| #include "sanitizer/msan_interface.h" |
| #include "msandr_test_so.h" |
| |
| #include <inttypes.h> |
| #include <stdlib.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <assert.h> |
| #include <wchar.h> |
| #include <math.h> |
| |
| #include <arpa/inet.h> |
| #include <dlfcn.h> |
| #include <grp.h> |
| #include <unistd.h> |
| #include <link.h> |
| #include <limits.h> |
| #include <sys/time.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <sys/resource.h> |
| #include <sys/ioctl.h> |
| #include <sys/sysinfo.h> |
| #include <sys/utsname.h> |
| #include <sys/mman.h> |
| #include <sys/vfs.h> |
| #include <dirent.h> |
| #include <pwd.h> |
| #include <sys/socket.h> |
| #include <netdb.h> |
| |
| #if defined(__i386__) || defined(__x86_64__) |
| # include <emmintrin.h> |
| # define MSAN_HAS_M128 1 |
| #else |
| # define MSAN_HAS_M128 0 |
| #endif |
| |
| typedef unsigned char U1; |
| typedef unsigned short U2; // NOLINT |
| typedef unsigned int U4; |
| typedef unsigned long long U8; // NOLINT |
| typedef signed char S1; |
| typedef signed short S2; // NOLINT |
| typedef signed int S4; |
| typedef signed long long S8; // NOLINT |
| #define NOINLINE __attribute__((noinline)) |
| #define INLINE __attribute__((always_inline)) |
| |
| static bool TrackingOrigins() { |
| S8 x; |
| __msan_set_origin(&x, sizeof(x), 0x1234); |
| U4 origin = __msan_get_origin(&x); |
| __msan_set_origin(&x, sizeof(x), 0); |
| return origin == 0x1234; |
| } |
| |
| #define EXPECT_UMR(action) \ |
| do { \ |
| __msan_set_expect_umr(1); \ |
| action; \ |
| __msan_set_expect_umr(0); \ |
| } while (0) |
| |
| #define EXPECT_UMR_O(action, origin) \ |
| do { \ |
| __msan_set_expect_umr(1); \ |
| action; \ |
| __msan_set_expect_umr(0); \ |
| if (TrackingOrigins()) \ |
| EXPECT_EQ(origin, __msan_get_umr_origin()); \ |
| } while (0) |
| |
| #define EXPECT_UMR_S(action, stack_origin) \ |
| do { \ |
| __msan_set_expect_umr(1); \ |
| action; \ |
| __msan_set_expect_umr(0); \ |
| U4 id = __msan_get_umr_origin(); \ |
| const char *str = __msan_get_origin_descr_if_stack(id); \ |
| if (!str || strcmp(str, stack_origin)) { \ |
| fprintf(stderr, "EXPECT_POISONED_S: id=%u %s, %s", \ |
| id, stack_origin, str); \ |
| EXPECT_EQ(1, 0); \ |
| } \ |
| } while (0) |
| |
| #define EXPECT_POISONED(x) ExpectPoisoned(x) |
| |
| template<typename T> |
| void ExpectPoisoned(const T& t) { |
| EXPECT_NE(-1, __msan_test_shadow((void*)&t, sizeof(t))); |
| } |
| |
| #define EXPECT_POISONED_O(x, origin) \ |
| ExpectPoisonedWithOrigin(x, origin) |
| |
| template<typename T> |
| void ExpectPoisonedWithOrigin(const T& t, unsigned origin) { |
| EXPECT_NE(-1, __msan_test_shadow((void*)&t, sizeof(t))); |
| if (TrackingOrigins()) |
| EXPECT_EQ(origin, __msan_get_origin((void*)&t)); |
| } |
| |
| #define EXPECT_POISONED_S(x, stack_origin) \ |
| ExpectPoisonedWithStackOrigin(x, stack_origin) |
| |
| template<typename T> |
| void ExpectPoisonedWithStackOrigin(const T& t, const char *stack_origin) { |
| EXPECT_NE(-1, __msan_test_shadow((void*)&t, sizeof(t))); |
| U4 id = __msan_get_origin((void*)&t); |
| const char *str = __msan_get_origin_descr_if_stack(id); |
| if (!str || strcmp(str, stack_origin)) { |
| fprintf(stderr, "EXPECT_POISONED_S: id=%u %s, %s", |
| id, stack_origin, str); |
| EXPECT_EQ(1, 0); |
| } |
| } |
| |
| #define EXPECT_NOT_POISONED(x) ExpectNotPoisoned(x) |
| |
| template<typename T> |
| void ExpectNotPoisoned(const T& t) { |
| EXPECT_EQ(-1, __msan_test_shadow((void*)&t, sizeof(t))); |
| } |
| |
| static U8 poisoned_array[100]; |
| template<class T> |
| T *GetPoisoned(int i = 0, T val = 0) { |
| T *res = (T*)&poisoned_array[i]; |
| *res = val; |
| __msan_poison(&poisoned_array[i], sizeof(T)); |
| return res; |
| } |
| |
| template<class T> |
| T *GetPoisonedO(int i, U4 origin, T val = 0) { |
| T *res = (T*)&poisoned_array[i]; |
| *res = val; |
| __msan_poison(&poisoned_array[i], sizeof(T)); |
| __msan_set_origin(&poisoned_array[i], sizeof(T), origin); |
| return res; |
| } |
| |
| // This function returns its parameter but in such a way that compiler |
| // can not prove it. |
| template<class T> |
| NOINLINE |
| static T Ident(T t) { |
| volatile T ret = t; |
| return ret; |
| } |
| |
| template<class T> NOINLINE T ReturnPoisoned() { return *GetPoisoned<T>(); } |
| |
| static volatile int g_one = 1; |
| static volatile int g_zero = 0; |
| static volatile int g_0 = 0; |
| static volatile int g_1 = 1; |
| |
| S4 a_s4[100]; |
| S8 a_s8[100]; |
| |
| // Check that malloc poisons memory. |
| // A lot of tests below depend on this. |
| TEST(MemorySanitizerSanity, PoisonInMalloc) { |
| int *x = (int*)malloc(sizeof(int)); |
| EXPECT_POISONED(*x); |
| free(x); |
| } |
| |
| TEST(MemorySanitizer, NegativeTest1) { |
| S4 *x = GetPoisoned<S4>(); |
| if (g_one) |
| *x = 0; |
| EXPECT_NOT_POISONED(*x); |
| } |
| |
| TEST(MemorySanitizer, PositiveTest1) { |
| // Load to store. |
| EXPECT_POISONED(*GetPoisoned<S1>()); |
| EXPECT_POISONED(*GetPoisoned<S2>()); |
| EXPECT_POISONED(*GetPoisoned<S4>()); |
| EXPECT_POISONED(*GetPoisoned<S8>()); |
| |
| // S->S conversions. |
| EXPECT_POISONED(*GetPoisoned<S1>()); |
| EXPECT_POISONED(*GetPoisoned<S1>()); |
| EXPECT_POISONED(*GetPoisoned<S1>()); |
| |
| EXPECT_POISONED(*GetPoisoned<S2>()); |
| EXPECT_POISONED(*GetPoisoned<S2>()); |
| EXPECT_POISONED(*GetPoisoned<S2>()); |
| |
| EXPECT_POISONED(*GetPoisoned<S4>()); |
| EXPECT_POISONED(*GetPoisoned<S4>()); |
| EXPECT_POISONED(*GetPoisoned<S4>()); |
| |
| EXPECT_POISONED(*GetPoisoned<S8>()); |
| EXPECT_POISONED(*GetPoisoned<S8>()); |
| EXPECT_POISONED(*GetPoisoned<S8>()); |
| |
| // ZExt |
| EXPECT_POISONED(*GetPoisoned<U1>()); |
| EXPECT_POISONED(*GetPoisoned<U1>()); |
| EXPECT_POISONED(*GetPoisoned<U1>()); |
| EXPECT_POISONED(*GetPoisoned<U2>()); |
| EXPECT_POISONED(*GetPoisoned<U2>()); |
| EXPECT_POISONED(*GetPoisoned<U4>()); |
| |
| // Unary ops. |
| EXPECT_POISONED(- *GetPoisoned<S4>()); |
| |
| EXPECT_UMR(a_s4[g_zero] = 100 / *GetPoisoned<S4>(0, 1)); |
| |
| |
| a_s4[g_zero] = 1 - *GetPoisoned<S4>(); |
| a_s4[g_zero] = 1 + *GetPoisoned<S4>(); |
| } |
| |
| TEST(MemorySanitizer, Phi1) { |
| S4 c; |
| if (g_one) { |
| c = *GetPoisoned<S4>(); |
| } else { |
| break_optimization(0); |
| c = 0; |
| } |
| EXPECT_POISONED(c); |
| } |
| |
| TEST(MemorySanitizer, Phi2) { |
| S4 i = *GetPoisoned<S4>(); |
| S4 n = g_one; |
| EXPECT_UMR(for (; i < g_one; i++);); |
| EXPECT_POISONED(i); |
| } |
| |
| NOINLINE void Arg1ExpectUMR(S4 a1) { EXPECT_POISONED(a1); } |
| NOINLINE void Arg2ExpectUMR(S4 a1, S4 a2) { EXPECT_POISONED(a2); } |
| NOINLINE void Arg3ExpectUMR(S1 a1, S4 a2, S8 a3) { EXPECT_POISONED(a3); } |
| |
| TEST(MemorySanitizer, ArgTest) { |
| Arg1ExpectUMR(*GetPoisoned<S4>()); |
| Arg2ExpectUMR(0, *GetPoisoned<S4>()); |
| Arg3ExpectUMR(0, 1, *GetPoisoned<S8>()); |
| } |
| |
| |
| TEST(MemorySanitizer, CallAndRet) { |
| if (!__msan_has_dynamic_component()) return; |
| ReturnPoisoned<S1>(); |
| ReturnPoisoned<S2>(); |
| ReturnPoisoned<S4>(); |
| ReturnPoisoned<S8>(); |
| |
| EXPECT_POISONED(ReturnPoisoned<S1>()); |
| EXPECT_POISONED(ReturnPoisoned<S2>()); |
| EXPECT_POISONED(ReturnPoisoned<S4>()); |
| EXPECT_POISONED(ReturnPoisoned<S8>()); |
| } |
| |
| // malloc() in the following test may be optimized to produce a compile-time |
| // undef value. Check that we trap on the volatile assignment anyway. |
| TEST(MemorySanitizer, DISABLED_MallocNoIdent) { |
| S4 *x = (int*)malloc(sizeof(S4)); |
| EXPECT_POISONED(*x); |
| free(x); |
| } |
| |
| TEST(MemorySanitizer, Malloc) { |
| S4 *x = (int*)Ident(malloc(sizeof(S4))); |
| EXPECT_POISONED(*x); |
| free(x); |
| } |
| |
| TEST(MemorySanitizer, Realloc) { |
| S4 *x = (int*)Ident(realloc(0, sizeof(S4))); |
| EXPECT_POISONED(x[0]); |
| x[0] = 1; |
| x = (int*)Ident(realloc(x, 2 * sizeof(S4))); |
| EXPECT_NOT_POISONED(x[0]); // Ok, was inited before. |
| EXPECT_POISONED(x[1]); |
| x = (int*)Ident(realloc(x, 3 * sizeof(S4))); |
| EXPECT_NOT_POISONED(x[0]); // Ok, was inited before. |
| EXPECT_POISONED(x[2]); |
| EXPECT_POISONED(x[1]); |
| x[2] = 1; // Init this here. Check that after realloc it is poisoned again. |
| x = (int*)Ident(realloc(x, 2 * sizeof(S4))); |
| EXPECT_NOT_POISONED(x[0]); // Ok, was inited before. |
| EXPECT_POISONED(x[1]); |
| x = (int*)Ident(realloc(x, 3 * sizeof(S4))); |
| EXPECT_POISONED(x[1]); |
| EXPECT_POISONED(x[2]); |
| free(x); |
| } |
| |
| TEST(MemorySanitizer, Calloc) { |
| S4 *x = (int*)Ident(calloc(1, sizeof(S4))); |
| EXPECT_NOT_POISONED(*x); // Should not be poisoned. |
| // EXPECT_EQ(0, *x); |
| free(x); |
| } |
| |
| TEST(MemorySanitizer, AndOr) { |
| U4 *p = GetPoisoned<U4>(); |
| // We poison two bytes in the midle of a 4-byte word to make the test |
| // correct regardless of endianness. |
| ((U1*)p)[1] = 0; |
| ((U1*)p)[2] = 0xff; |
| EXPECT_NOT_POISONED(*p & 0x00ffff00); |
| EXPECT_NOT_POISONED(*p & 0x00ff0000); |
| EXPECT_NOT_POISONED(*p & 0x0000ff00); |
| EXPECT_POISONED(*p & 0xff000000); |
| EXPECT_POISONED(*p & 0x000000ff); |
| EXPECT_POISONED(*p & 0x0000ffff); |
| EXPECT_POISONED(*p & 0xffff0000); |
| |
| EXPECT_NOT_POISONED(*p | 0xff0000ff); |
| EXPECT_NOT_POISONED(*p | 0xff00ffff); |
| EXPECT_NOT_POISONED(*p | 0xffff00ff); |
| EXPECT_POISONED(*p | 0xff000000); |
| EXPECT_POISONED(*p | 0x000000ff); |
| EXPECT_POISONED(*p | 0x0000ffff); |
| EXPECT_POISONED(*p | 0xffff0000); |
| |
| EXPECT_POISONED(*GetPoisoned<bool>() & *GetPoisoned<bool>()); |
| } |
| |
| template<class T> |
| static bool applyNot(T value, T shadow) { |
| __msan_partial_poison(&value, &shadow, sizeof(T)); |
| return !value; |
| } |
| |
| TEST(MemorySanitizer, Not) { |
| EXPECT_NOT_POISONED(applyNot<U4>(0x0, 0x0)); |
| EXPECT_NOT_POISONED(applyNot<U4>(0xFFFFFFFF, 0x0)); |
| EXPECT_POISONED(applyNot<U4>(0xFFFFFFFF, 0xFFFFFFFF)); |
| EXPECT_NOT_POISONED(applyNot<U4>(0xFF000000, 0x0FFFFFFF)); |
| EXPECT_NOT_POISONED(applyNot<U4>(0xFF000000, 0x00FFFFFF)); |
| EXPECT_NOT_POISONED(applyNot<U4>(0xFF000000, 0x0000FFFF)); |
| EXPECT_NOT_POISONED(applyNot<U4>(0xFF000000, 0x00000000)); |
| EXPECT_POISONED(applyNot<U4>(0xFF000000, 0xFF000000)); |
| EXPECT_NOT_POISONED(applyNot<U4>(0xFF800000, 0xFF000000)); |
| EXPECT_POISONED(applyNot<U4>(0x00008000, 0x00008000)); |
| |
| EXPECT_NOT_POISONED(applyNot<U1>(0x0, 0x0)); |
| EXPECT_NOT_POISONED(applyNot<U1>(0xFF, 0xFE)); |
| EXPECT_NOT_POISONED(applyNot<U1>(0xFF, 0x0)); |
| EXPECT_POISONED(applyNot<U1>(0xFF, 0xFF)); |
| |
| EXPECT_POISONED(applyNot<void*>((void*)0xFFFFFF, (void*)(-1))); |
| EXPECT_NOT_POISONED(applyNot<void*>((void*)0xFFFFFF, (void*)(-2))); |
| } |
| |
| TEST(MemorySanitizer, Shift) { |
| U4 *up = GetPoisoned<U4>(); |
| ((U1*)up)[0] = 0; |
| ((U1*)up)[3] = 0xff; |
| EXPECT_NOT_POISONED(*up >> 30); |
| EXPECT_NOT_POISONED(*up >> 24); |
| EXPECT_POISONED(*up >> 23); |
| EXPECT_POISONED(*up >> 10); |
| |
| EXPECT_NOT_POISONED(*up << 30); |
| EXPECT_NOT_POISONED(*up << 24); |
| EXPECT_POISONED(*up << 23); |
| EXPECT_POISONED(*up << 10); |
| |
| S4 *sp = (S4*)up; |
| EXPECT_NOT_POISONED(*sp >> 30); |
| EXPECT_NOT_POISONED(*sp >> 24); |
| EXPECT_POISONED(*sp >> 23); |
| EXPECT_POISONED(*sp >> 10); |
| |
| sp = GetPoisoned<S4>(); |
| ((S1*)sp)[1] = 0; |
| ((S1*)sp)[2] = 0; |
| EXPECT_POISONED(*sp >> 31); |
| |
| EXPECT_POISONED(100 >> *GetPoisoned<S4>()); |
| EXPECT_POISONED(100U >> *GetPoisoned<S4>()); |
| } |
| |
| NOINLINE static int GetPoisonedZero() { |
| int *zero = new int; |
| *zero = 0; |
| __msan_poison(zero, sizeof(*zero)); |
| int res = *zero; |
| delete zero; |
| return res; |
| } |
| |
| TEST(MemorySanitizer, LoadFromDirtyAddress) { |
| int *a = new int; |
| *a = 0; |
| EXPECT_UMR(break_optimization((void*)(U8)a[GetPoisonedZero()])); |
| delete a; |
| } |
| |
| TEST(MemorySanitizer, StoreToDirtyAddress) { |
| int *a = new int; |
| EXPECT_UMR(a[GetPoisonedZero()] = 0); |
| break_optimization(a); |
| delete a; |
| } |
| |
| |
| NOINLINE void StackTestFunc() { |
| S4 p4; |
| S4 ok4 = 1; |
| S2 p2; |
| S2 ok2 = 1; |
| S1 p1; |
| S1 ok1 = 1; |
| break_optimization(&p4); |
| break_optimization(&ok4); |
| break_optimization(&p2); |
| break_optimization(&ok2); |
| break_optimization(&p1); |
| break_optimization(&ok1); |
| |
| EXPECT_POISONED(p4); |
| EXPECT_POISONED(p2); |
| EXPECT_POISONED(p1); |
| EXPECT_NOT_POISONED(ok1); |
| EXPECT_NOT_POISONED(ok2); |
| EXPECT_NOT_POISONED(ok4); |
| } |
| |
| TEST(MemorySanitizer, StackTest) { |
| StackTestFunc(); |
| } |
| |
| NOINLINE void StackStressFunc() { |
| int foo[10000]; |
| break_optimization(foo); |
| } |
| |
| TEST(MemorySanitizer, DISABLED_StackStressTest) { |
| for (int i = 0; i < 1000000; i++) |
| StackStressFunc(); |
| } |
| |
| template<class T> |
| void TestFloatingPoint() { |
| static volatile T v; |
| static T g[100]; |
| break_optimization(&g); |
| T *x = GetPoisoned<T>(); |
| T *y = GetPoisoned<T>(1); |
| EXPECT_POISONED(*x); |
| EXPECT_POISONED((long long)*x); |
| EXPECT_POISONED((int)*x); |
| g[0] = *x; |
| g[1] = *x + *y; |
| g[2] = *x - *y; |
| g[3] = *x * *y; |
| } |
| |
| TEST(MemorySanitizer, FloatingPointTest) { |
| TestFloatingPoint<float>(); |
| TestFloatingPoint<double>(); |
| } |
| |
| TEST(MemorySanitizer, DynMem) { |
| S4 x = 0; |
| S4 *y = GetPoisoned<S4>(); |
| memcpy(y, &x, g_one * sizeof(S4)); |
| EXPECT_NOT_POISONED(*y); |
| } |
| |
| static char *DynRetTestStr; |
| |
| TEST(MemorySanitizer, DynRet) { |
| if (!__msan_has_dynamic_component()) return; |
| ReturnPoisoned<S8>(); |
| EXPECT_NOT_POISONED(clearenv()); |
| } |
| |
| |
| TEST(MemorySanitizer, DynRet1) { |
| if (!__msan_has_dynamic_component()) return; |
| ReturnPoisoned<S8>(); |
| } |
| |
| struct LargeStruct { |
| S4 x[10]; |
| }; |
| |
| NOINLINE |
| LargeStruct LargeRetTest() { |
| LargeStruct res; |
| res.x[0] = *GetPoisoned<S4>(); |
| res.x[1] = *GetPoisoned<S4>(); |
| res.x[2] = *GetPoisoned<S4>(); |
| res.x[3] = *GetPoisoned<S4>(); |
| res.x[4] = *GetPoisoned<S4>(); |
| res.x[5] = *GetPoisoned<S4>(); |
| res.x[6] = *GetPoisoned<S4>(); |
| res.x[7] = *GetPoisoned<S4>(); |
| res.x[8] = *GetPoisoned<S4>(); |
| res.x[9] = *GetPoisoned<S4>(); |
| return res; |
| } |
| |
| TEST(MemorySanitizer, LargeRet) { |
| LargeStruct a = LargeRetTest(); |
| EXPECT_POISONED(a.x[0]); |
| EXPECT_POISONED(a.x[9]); |
| } |
| |
| TEST(MemorySanitizer, fread) { |
| char *x = new char[32]; |
| FILE *f = fopen("/proc/self/stat", "r"); |
| assert(f); |
| fread(x, 1, 32, f); |
| EXPECT_NOT_POISONED(x[0]); |
| EXPECT_NOT_POISONED(x[16]); |
| EXPECT_NOT_POISONED(x[31]); |
| fclose(f); |
| delete x; |
| } |
| |
| TEST(MemorySanitizer, read) { |
| char *x = new char[32]; |
| int fd = open("/proc/self/stat", O_RDONLY); |
| assert(fd > 0); |
| int sz = read(fd, x, 32); |
| assert(sz == 32); |
| EXPECT_NOT_POISONED(x[0]); |
| EXPECT_NOT_POISONED(x[16]); |
| EXPECT_NOT_POISONED(x[31]); |
| close(fd); |
| delete x; |
| } |
| |
| TEST(MemorySanitizer, pread) { |
| char *x = new char[32]; |
| int fd = open("/proc/self/stat", O_RDONLY); |
| assert(fd > 0); |
| int sz = pread(fd, x, 32, 0); |
| assert(sz == 32); |
| EXPECT_NOT_POISONED(x[0]); |
| EXPECT_NOT_POISONED(x[16]); |
| EXPECT_NOT_POISONED(x[31]); |
| close(fd); |
| delete x; |
| } |
| |
| TEST(MemorySanitizer, readv) { |
| char buf[2011]; |
| struct iovec iov[2]; |
| iov[0].iov_base = buf + 1; |
| iov[0].iov_len = 5; |
| iov[1].iov_base = buf + 10; |
| iov[1].iov_len = 2000; |
| int fd = open("/proc/self/stat", O_RDONLY); |
| assert(fd > 0); |
| int sz = readv(fd, iov, 2); |
| ASSERT_LT(sz, 5 + 2000); |
| ASSERT_GT(sz, iov[0].iov_len); |
| EXPECT_POISONED(buf[0]); |
| EXPECT_NOT_POISONED(buf[1]); |
| EXPECT_NOT_POISONED(buf[5]); |
| EXPECT_POISONED(buf[6]); |
| EXPECT_POISONED(buf[9]); |
| EXPECT_NOT_POISONED(buf[10]); |
| EXPECT_NOT_POISONED(buf[10 + (sz - 1) - 5]); |
| EXPECT_POISONED(buf[11 + (sz - 1) - 5]); |
| close(fd); |
| } |
| |
| TEST(MemorySanitizer, preadv) { |
| char buf[2011]; |
| struct iovec iov[2]; |
| iov[0].iov_base = buf + 1; |
| iov[0].iov_len = 5; |
| iov[1].iov_base = buf + 10; |
| iov[1].iov_len = 2000; |
| int fd = open("/proc/self/stat", O_RDONLY); |
| assert(fd > 0); |
| int sz = preadv(fd, iov, 2, 3); |
| ASSERT_LT(sz, 5 + 2000); |
| ASSERT_GT(sz, iov[0].iov_len); |
| EXPECT_POISONED(buf[0]); |
| EXPECT_NOT_POISONED(buf[1]); |
| EXPECT_NOT_POISONED(buf[5]); |
| EXPECT_POISONED(buf[6]); |
| EXPECT_POISONED(buf[9]); |
| EXPECT_NOT_POISONED(buf[10]); |
| EXPECT_NOT_POISONED(buf[10 + (sz - 1) - 5]); |
| EXPECT_POISONED(buf[11 + (sz - 1) - 5]); |
| close(fd); |
| } |
| |
| // FIXME: fails now. |
| TEST(MemorySanitizer, DISABLED_ioctl) { |
| struct winsize ws; |
| EXPECT_EQ(ioctl(2, TIOCGWINSZ, &ws), 0); |
| EXPECT_NOT_POISONED(ws.ws_col); |
| } |
| |
| TEST(MemorySanitizer, readlink) { |
| char *x = new char[1000]; |
| readlink("/proc/self/exe", x, 1000); |
| EXPECT_NOT_POISONED(x[0]); |
| delete [] x; |
| } |
| |
| |
| TEST(MemorySanitizer, stat) { |
| struct stat* st = new struct stat; |
| int res = stat("/proc/self/stat", st); |
| assert(!res); |
| EXPECT_NOT_POISONED(st->st_dev); |
| EXPECT_NOT_POISONED(st->st_mode); |
| EXPECT_NOT_POISONED(st->st_size); |
| } |
| |
| TEST(MemorySanitizer, statfs) { |
| struct statfs* st = new struct statfs; |
| int res = statfs("/", st); |
| assert(!res); |
| EXPECT_NOT_POISONED(st->f_type); |
| EXPECT_NOT_POISONED(st->f_bfree); |
| EXPECT_NOT_POISONED(st->f_namelen); |
| } |
| |
| TEST(MemorySanitizer, pipe) { |
| int* pipefd = new int[2]; |
| int res = pipe(pipefd); |
| assert(!res); |
| EXPECT_NOT_POISONED(pipefd[0]); |
| EXPECT_NOT_POISONED(pipefd[1]); |
| close(pipefd[0]); |
| close(pipefd[1]); |
| } |
| |
| TEST(MemorySanitizer, pipe2) { |
| int* pipefd = new int[2]; |
| int res = pipe2(pipefd, O_NONBLOCK); |
| assert(!res); |
| EXPECT_NOT_POISONED(pipefd[0]); |
| EXPECT_NOT_POISONED(pipefd[1]); |
| close(pipefd[0]); |
| close(pipefd[1]); |
| } |
| |
| TEST(MemorySanitizer, socketpair) { |
| int sv[2]; |
| int res = socketpair(AF_UNIX, SOCK_STREAM, 0, sv); |
| assert(!res); |
| EXPECT_NOT_POISONED(sv[0]); |
| EXPECT_NOT_POISONED(sv[1]); |
| close(sv[0]); |
| close(sv[1]); |
| } |
| |
| TEST(MemorySanitizer, bind_getsockname) { |
| int sock = socket(AF_UNIX, SOCK_STREAM, 0); |
| |
| struct sockaddr_in sai; |
| memset(&sai, 0, sizeof(sai)); |
| sai.sin_family = AF_UNIX; |
| int res = bind(sock, (struct sockaddr *)&sai, sizeof(sai)); |
| |
| assert(!res); |
| char buf[200]; |
| socklen_t addrlen; |
| EXPECT_UMR(getsockname(sock, (struct sockaddr *)&buf, &addrlen)); |
| |
| addrlen = sizeof(buf); |
| res = getsockname(sock, (struct sockaddr *)&buf, &addrlen); |
| EXPECT_NOT_POISONED(addrlen); |
| EXPECT_NOT_POISONED(buf[0]); |
| EXPECT_NOT_POISONED(buf[addrlen - 1]); |
| EXPECT_POISONED(buf[addrlen]); |
| close(sock); |
| } |
| |
| TEST(MemorySanitizer, accept) { |
| int listen_socket = socket(AF_INET, SOCK_STREAM, 0); |
| ASSERT_LT(0, listen_socket); |
| |
| struct sockaddr_in sai; |
| sai.sin_family = AF_INET; |
| sai.sin_port = 0; |
| sai.sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
| int res = bind(listen_socket, (struct sockaddr *)&sai, sizeof(sai)); |
| ASSERT_EQ(0, res); |
| |
| res = listen(listen_socket, 1); |
| ASSERT_EQ(0, res); |
| |
| socklen_t sz = sizeof(sai); |
| res = getsockname(listen_socket, (struct sockaddr *)&sai, &sz); |
| ASSERT_EQ(0, res); |
| ASSERT_EQ(sizeof(sai), sz); |
| |
| int connect_socket = socket(AF_INET, SOCK_STREAM, 0); |
| ASSERT_LT(0, connect_socket); |
| res = fcntl(connect_socket, F_SETFL, O_NONBLOCK); |
| ASSERT_EQ(0, res); |
| res = connect(connect_socket, (struct sockaddr *)&sai, sizeof(sai)); |
| ASSERT_EQ(-1, res); |
| ASSERT_EQ(EINPROGRESS, errno); |
| |
| __msan_poison(&sai, sizeof(sai)); |
| int new_sock = accept(listen_socket, (struct sockaddr *)&sai, &sz); |
| ASSERT_LT(0, new_sock); |
| ASSERT_EQ(sizeof(sai), sz); |
| EXPECT_NOT_POISONED(sai); |
| |
| __msan_poison(&sai, sizeof(sai)); |
| res = getpeername(new_sock, (struct sockaddr *)&sai, &sz); |
| ASSERT_EQ(0, res); |
| ASSERT_EQ(sizeof(sai), sz); |
| EXPECT_NOT_POISONED(sai); |
| |
| close(new_sock); |
| close(connect_socket); |
| close(listen_socket); |
| } |
| |
| TEST(MemorySanitizer, getaddrinfo) { |
| struct addrinfo *ai; |
| struct addrinfo hints; |
| memset(&hints, 0, sizeof(hints)); |
| hints.ai_family = AF_INET; |
| int res = getaddrinfo("localhost", NULL, &hints, &ai); |
| ASSERT_EQ(0, res); |
| EXPECT_NOT_POISONED(*ai); |
| ASSERT_EQ(sizeof(sockaddr_in), ai->ai_addrlen); |
| EXPECT_NOT_POISONED(*(sockaddr_in*)ai->ai_addr); |
| } |
| |
| TEST(MemorySanitizer, getnameinfo) { |
| struct sockaddr_in sai; |
| sai.sin_family = AF_INET; |
| sai.sin_port = 80; |
| sai.sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
| char host[500]; |
| char serv[500]; |
| int res = getnameinfo((struct sockaddr *)&sai, sizeof(sai), host, |
| sizeof(host), serv, sizeof(serv), 0); |
| ASSERT_EQ(0, res); |
| EXPECT_NOT_POISONED(host[0]); |
| EXPECT_POISONED(host[sizeof(host) - 1]); |
| |
| ASSERT_NE(0, strlen(host)); |
| EXPECT_NOT_POISONED(serv[0]); |
| EXPECT_POISONED(serv[sizeof(serv) - 1]); |
| ASSERT_NE(0, strlen(serv)); |
| } |
| |
| #define EXPECT_HOSTENT_NOT_POISONED(he) \ |
| do { \ |
| EXPECT_NOT_POISONED(*(he)); \ |
| ASSERT_NE((void *) 0, (he)->h_name); \ |
| ASSERT_NE((void *) 0, (he)->h_aliases); \ |
| ASSERT_NE((void *) 0, (he)->h_addr_list); \ |
| EXPECT_NOT_POISONED(strlen((he)->h_name)); \ |
| char **p = (he)->h_aliases; \ |
| while (*p) { \ |
| EXPECT_NOT_POISONED(strlen(*p)); \ |
| ++p; \ |
| } \ |
| char **q = (he)->h_addr_list; \ |
| while (*q) { \ |
| EXPECT_NOT_POISONED(*q[0]); \ |
| ++q; \ |
| } \ |
| EXPECT_NOT_POISONED(*q); \ |
| } while (0) |
| |
| TEST(MemorySanitizer, gethostent) { |
| struct hostent *he = gethostent(); |
| ASSERT_NE((void *)NULL, he); |
| EXPECT_HOSTENT_NOT_POISONED(he); |
| } |
| |
| #ifndef MSAN_TEST_DISABLE_GETHOSTBYNAME |
| |
| TEST(MemorySanitizer, gethostbyname) { |
| struct hostent *he = gethostbyname("localhost"); |
| ASSERT_NE((void *)NULL, he); |
| EXPECT_HOSTENT_NOT_POISONED(he); |
| } |
| |
| #endif // MSAN_TEST_DISABLE_GETHOSTBYNAME |
| |
| TEST(MemorySanitizer, gethostbyname2) { |
| struct hostent *he = gethostbyname2("localhost", AF_INET); |
| ASSERT_NE((void *)NULL, he); |
| EXPECT_HOSTENT_NOT_POISONED(he); |
| } |
| |
| TEST(MemorySanitizer, gethostbyaddr) { |
| in_addr_t addr = inet_addr("127.0.0.1"); |
| EXPECT_NOT_POISONED(addr); |
| struct hostent *he = gethostbyaddr(&addr, sizeof(addr), AF_INET); |
| ASSERT_NE((void *)NULL, he); |
| EXPECT_HOSTENT_NOT_POISONED(he); |
| } |
| |
| TEST(MemorySanitizer, gethostent_r) { |
| char buf[2000]; |
| struct hostent he; |
| struct hostent *result; |
| int err; |
| int res = gethostent_r(&he, buf, sizeof(buf), &result, &err); |
| ASSERT_EQ(0, res); |
| EXPECT_NOT_POISONED(result); |
| ASSERT_NE((void *)NULL, result); |
| EXPECT_HOSTENT_NOT_POISONED(result); |
| EXPECT_NOT_POISONED(err); |
| } |
| |
| TEST(MemorySanitizer, gethostbyname_r) { |
| char buf[2000]; |
| struct hostent he; |
| struct hostent *result; |
| int err; |
| int res = gethostbyname_r("localhost", &he, buf, sizeof(buf), &result, &err); |
| ASSERT_EQ(0, res); |
| EXPECT_NOT_POISONED(result); |
| ASSERT_NE((void *)NULL, result); |
| EXPECT_HOSTENT_NOT_POISONED(result); |
| EXPECT_NOT_POISONED(err); |
| } |
| |
| TEST(MemorySanitizer, gethostbyname2_r) { |
| char buf[2000]; |
| struct hostent he; |
| struct hostent *result; |
| int err; |
| int res = gethostbyname2_r("localhost", AF_INET, &he, buf, sizeof(buf), |
| &result, &err); |
| ASSERT_EQ(0, res); |
| EXPECT_NOT_POISONED(result); |
| ASSERT_NE((void *)NULL, result); |
| EXPECT_HOSTENT_NOT_POISONED(result); |
| EXPECT_NOT_POISONED(err); |
| } |
| |
| TEST(MemorySanitizer, gethostbyaddr_r) { |
| char buf[2000]; |
| struct hostent he; |
| struct hostent *result; |
| int err; |
| in_addr_t addr = inet_addr("127.0.0.1"); |
| EXPECT_NOT_POISONED(addr); |
| int res = gethostbyaddr_r(&addr, sizeof(addr), AF_INET, &he, buf, sizeof(buf), |
| &result, &err); |
| ASSERT_EQ(0, res); |
| EXPECT_NOT_POISONED(result); |
| ASSERT_NE((void *)NULL, result); |
| EXPECT_HOSTENT_NOT_POISONED(result); |
| EXPECT_NOT_POISONED(err); |
| } |
| |
| TEST(MemorySanitizer, getsockopt) { |
| int sock = socket(AF_UNIX, SOCK_STREAM, 0); |
| struct linger l[2]; |
| socklen_t sz = sizeof(l[0]); |
| int res = getsockopt(sock, SOL_SOCKET, SO_LINGER, &l[0], &sz); |
| ASSERT_EQ(0, res); |
| ASSERT_EQ(sizeof(l[0]), sz); |
| EXPECT_NOT_POISONED(l[0]); |
| EXPECT_POISONED(*(char *)(l + 1)); |
| } |
| |
| TEST(MemorySanitizer, getcwd) { |
| char path[PATH_MAX + 1]; |
| char* res = getcwd(path, sizeof(path)); |
| assert(res); |
| EXPECT_NOT_POISONED(path[0]); |
| } |
| |
| TEST(MemorySanitizer, getcwd_gnu) { |
| char* res = getcwd(NULL, 0); |
| assert(res); |
| EXPECT_NOT_POISONED(res[0]); |
| free(res); |
| } |
| |
| TEST(MemorySanitizer, get_current_dir_name) { |
| char* res = get_current_dir_name(); |
| assert(res); |
| EXPECT_NOT_POISONED(res[0]); |
| free(res); |
| } |
| |
| TEST(MemorySanitizer, readdir) { |
| DIR *dir = opendir("."); |
| struct dirent *d = readdir(dir); |
| assert(d); |
| EXPECT_NOT_POISONED(d->d_name[0]); |
| closedir(dir); |
| } |
| |
| TEST(MemorySanitizer, readdir_r) { |
| DIR *dir = opendir("."); |
| struct dirent d; |
| struct dirent *pd; |
| int res = readdir_r(dir, &d, &pd); |
| assert(!res); |
| EXPECT_NOT_POISONED(pd); |
| EXPECT_NOT_POISONED(d.d_name[0]); |
| closedir(dir); |
| } |
| |
| TEST(MemorySanitizer, realpath) { |
| const char* relpath = "."; |
| char path[PATH_MAX + 1]; |
| char* res = realpath(relpath, path); |
| assert(res); |
| EXPECT_NOT_POISONED(path[0]); |
| } |
| |
| TEST(MemorySanitizer, realpath_null) { |
| const char* relpath = "."; |
| char* res = realpath(relpath, NULL); |
| printf("%d, %s\n", errno, strerror(errno)); |
| assert(res); |
| EXPECT_NOT_POISONED(res[0]); |
| free(res); |
| } |
| |
| TEST(MemorySanitizer, canonicalize_file_name) { |
| const char* relpath = "."; |
| char* res = canonicalize_file_name(relpath); |
| assert(res); |
| EXPECT_NOT_POISONED(res[0]); |
| free(res); |
| } |
| |
| TEST(MemorySanitizer, memcpy) { |
| char* x = new char[2]; |
| char* y = new char[2]; |
| x[0] = 1; |
| x[1] = *GetPoisoned<char>(); |
| memcpy(y, x, 2); |
| EXPECT_NOT_POISONED(y[0]); |
| EXPECT_POISONED(y[1]); |
| } |
| |
| TEST(MemorySanitizer, memmove) { |
| char* x = new char[2]; |
| char* y = new char[2]; |
| x[0] = 1; |
| x[1] = *GetPoisoned<char>(); |
| memmove(y, x, 2); |
| EXPECT_NOT_POISONED(y[0]); |
| EXPECT_POISONED(y[1]); |
| } |
| |
| TEST(MemorySanitizer, bcopy) { |
| char* x = new char[2]; |
| char* y = new char[2]; |
| x[0] = 1; |
| x[1] = *GetPoisoned<char>(); |
| bcopy(x, y, 2); |
| EXPECT_NOT_POISONED(y[0]); |
| EXPECT_POISONED(y[1]); |
| } |
| |
| TEST(MemorySanitizer, strdup) { |
| char buf[4] = "abc"; |
| __msan_poison(buf + 2, sizeof(*buf)); |
| char *x = strdup(buf); |
| EXPECT_NOT_POISONED(x[0]); |
| EXPECT_NOT_POISONED(x[1]); |
| EXPECT_POISONED(x[2]); |
| EXPECT_NOT_POISONED(x[3]); |
| free(x); |
| } |
| |
| TEST(MemorySanitizer, strndup) { |
| char buf[4] = "abc"; |
| __msan_poison(buf + 2, sizeof(*buf)); |
| char *x = strndup(buf, 3); |
| EXPECT_NOT_POISONED(x[0]); |
| EXPECT_NOT_POISONED(x[1]); |
| EXPECT_POISONED(x[2]); |
| EXPECT_NOT_POISONED(x[3]); |
| free(x); |
| } |
| |
| TEST(MemorySanitizer, strndup_short) { |
| char buf[4] = "abc"; |
| __msan_poison(buf + 1, sizeof(*buf)); |
| __msan_poison(buf + 2, sizeof(*buf)); |
| char *x = strndup(buf, 2); |
| EXPECT_NOT_POISONED(x[0]); |
| EXPECT_POISONED(x[1]); |
| EXPECT_NOT_POISONED(x[2]); |
| free(x); |
| } |
| |
| |
| template<class T, int size> |
| void TestOverlapMemmove() { |
| T *x = new T[size]; |
| assert(size >= 3); |
| x[2] = 0; |
| memmove(x, x + 1, (size - 1) * sizeof(T)); |
| EXPECT_NOT_POISONED(x[1]); |
| if (!__msan_has_dynamic_component()) { |
| // FIXME: under DR we will lose this information |
| // because accesses in memmove will unpoisin the shadow. |
| // We need to use our own memove implementation instead of libc's. |
| EXPECT_POISONED(x[0]); |
| EXPECT_POISONED(x[2]); |
| } |
| delete [] x; |
| } |
| |
| TEST(MemorySanitizer, overlap_memmove) { |
| TestOverlapMemmove<U1, 10>(); |
| TestOverlapMemmove<U1, 1000>(); |
| TestOverlapMemmove<U8, 4>(); |
| TestOverlapMemmove<U8, 1000>(); |
| } |
| |
| TEST(MemorySanitizer, strcpy) { // NOLINT |
| char* x = new char[3]; |
| char* y = new char[3]; |
| x[0] = 'a'; |
| x[1] = *GetPoisoned<char>(1, 1); |
| x[2] = 0; |
| strcpy(y, x); // NOLINT |
| EXPECT_NOT_POISONED(y[0]); |
| EXPECT_POISONED(y[1]); |
| EXPECT_NOT_POISONED(y[2]); |
| } |
| |
| TEST(MemorySanitizer, strncpy) { // NOLINT |
| char* x = new char[3]; |
| char* y = new char[3]; |
| x[0] = 'a'; |
| x[1] = *GetPoisoned<char>(1, 1); |
| x[2] = 0; |
| strncpy(y, x, 2); // NOLINT |
| EXPECT_NOT_POISONED(y[0]); |
| EXPECT_POISONED(y[1]); |
| EXPECT_POISONED(y[2]); |
| } |
| |
| TEST(MemorySanitizer, stpcpy) { // NOLINT |
| char* x = new char[3]; |
| char* y = new char[3]; |
| x[0] = 'a'; |
| x[1] = *GetPoisoned<char>(1, 1); |
| x[2] = 0; |
| char *res = stpcpy(y, x); // NOLINT |
| ASSERT_EQ(res, y + 2); |
| EXPECT_NOT_POISONED(y[0]); |
| EXPECT_POISONED(y[1]); |
| EXPECT_NOT_POISONED(y[2]); |
| } |
| |
| TEST(MemorySanitizer, strtol) { |
| char *e; |
| assert(1 == strtol("1", &e, 10)); |
| EXPECT_NOT_POISONED((S8) e); |
| } |
| |
| TEST(MemorySanitizer, strtoll) { |
| char *e; |
| assert(1 == strtoll("1", &e, 10)); |
| EXPECT_NOT_POISONED((S8) e); |
| } |
| |
| TEST(MemorySanitizer, strtoul) { |
| char *e; |
| assert(1 == strtoul("1", &e, 10)); |
| EXPECT_NOT_POISONED((S8) e); |
| } |
| |
| TEST(MemorySanitizer, strtoull) { |
| char *e; |
| assert(1 == strtoull("1", &e, 10)); |
| EXPECT_NOT_POISONED((S8) e); |
| } |
| |
| TEST(MemorySanitizer, strtoimax) { |
| char *e; |
| assert(1 == strtoimax("1", &e, 10)); |
| EXPECT_NOT_POISONED((S8) e); |
| } |
| |
| TEST(MemorySanitizer, strtoumax) { |
| char *e; |
| assert(1 == strtoumax("1", &e, 10)); |
| EXPECT_NOT_POISONED((S8) e); |
| } |
| |
| TEST(MemorySanitizer, strtod) { |
| char *e; |
| assert(0 != strtod("1.5", &e)); |
| EXPECT_NOT_POISONED((S8) e); |
| } |
| |
| TEST(MemorySanitizer, strtof) { |
| char *e; |
| assert(0 != strtof("1.5", &e)); |
| EXPECT_NOT_POISONED((S8) e); |
| } |
| |
| TEST(MemorySanitizer, strtold) { |
| char *e; |
| assert(0 != strtold("1.5", &e)); |
| EXPECT_NOT_POISONED((S8) e); |
| } |
| |
| TEST(MemorySanitizer, modf) { |
| double x, y; |
| x = modf(2.1, &y); |
| EXPECT_NOT_POISONED(y); |
| } |
| |
| TEST(MemorySanitizer, modff) { |
| float x, y; |
| x = modff(2.1, &y); |
| EXPECT_NOT_POISONED(y); |
| } |
| |
| TEST(MemorySanitizer, modfl) { |
| long double x, y; |
| x = modfl(2.1, &y); |
| EXPECT_NOT_POISONED(y); |
| } |
| |
| TEST(MemorySanitizer, sprintf) { // NOLINT |
| char buff[10]; |
| break_optimization(buff); |
| EXPECT_POISONED(buff[0]); |
| int res = sprintf(buff, "%d", 1234567); // NOLINT |
| assert(res == 7); |
| assert(buff[0] == '1'); |
| assert(buff[1] == '2'); |
| assert(buff[2] == '3'); |
| assert(buff[6] == '7'); |
| assert(buff[7] == 0); |
| EXPECT_POISONED(buff[8]); |
| } |
| |
| TEST(MemorySanitizer, snprintf) { |
| char buff[10]; |
| break_optimization(buff); |
| EXPECT_POISONED(buff[0]); |
| int res = snprintf(buff, sizeof(buff), "%d", 1234567); |
| assert(res == 7); |
| assert(buff[0] == '1'); |
| assert(buff[1] == '2'); |
| assert(buff[2] == '3'); |
| assert(buff[6] == '7'); |
| assert(buff[7] == 0); |
| EXPECT_POISONED(buff[8]); |
| } |
| |
| TEST(MemorySanitizer, swprintf) { |
| wchar_t buff[10]; |
| assert(sizeof(wchar_t) == 4); |
| break_optimization(buff); |
| EXPECT_POISONED(buff[0]); |
| int res = swprintf(buff, 9, L"%d", 1234567); |
| assert(res == 7); |
| assert(buff[0] == '1'); |
| assert(buff[1] == '2'); |
| assert(buff[2] == '3'); |
| assert(buff[6] == '7'); |
| assert(buff[7] == 0); |
| EXPECT_POISONED(buff[8]); |
| } |
| |
| TEST(MemorySanitizer, asprintf) { // NOLINT |
| char *pbuf; |
| EXPECT_POISONED(pbuf); |
| int res = asprintf(&pbuf, "%d", 1234567); // NOLINT |
| assert(res == 7); |
| EXPECT_NOT_POISONED(pbuf); |
| assert(pbuf[0] == '1'); |
| assert(pbuf[1] == '2'); |
| assert(pbuf[2] == '3'); |
| assert(pbuf[6] == '7'); |
| assert(pbuf[7] == 0); |
| free(pbuf); |
| } |
| |
| TEST(MemorySanitizer, wcstombs) { |
| const wchar_t *x = L"abc"; |
| char buff[10]; |
| int res = wcstombs(buff, x, 4); |
| EXPECT_EQ(res, 3); |
| EXPECT_EQ(buff[0], 'a'); |
| EXPECT_EQ(buff[1], 'b'); |
| EXPECT_EQ(buff[2], 'c'); |
| } |
| |
| TEST(MemorySanitizer, wcsrtombs) { |
| const wchar_t *x = L"abc"; |
| const wchar_t *p = x; |
| char buff[10]; |
| mbstate_t mbs; |
| memset(&mbs, 0, sizeof(mbs)); |
| int res = wcsrtombs(buff, &p, 4, &mbs); |
| EXPECT_EQ(res, 3); |
| EXPECT_EQ(buff[0], 'a'); |
| EXPECT_EQ(buff[1], 'b'); |
| EXPECT_EQ(buff[2], 'c'); |
| EXPECT_EQ(buff[3], '\0'); |
| EXPECT_POISONED(buff[4]); |
| } |
| |
| TEST(MemorySanitizer, wcsnrtombs) { |
| const wchar_t *x = L"abc"; |
| const wchar_t *p = x; |
| char buff[10]; |
| mbstate_t mbs; |
| memset(&mbs, 0, sizeof(mbs)); |
| int res = wcsnrtombs(buff, &p, 2, 4, &mbs); |
| EXPECT_EQ(res, 2); |
| EXPECT_EQ(buff[0], 'a'); |
| EXPECT_EQ(buff[1], 'b'); |
| EXPECT_POISONED(buff[2]); |
| } |
| |
| TEST(MemorySanitizer, mbtowc) { |
| const char *x = "abc"; |
| wchar_t wx; |
| int res = mbtowc(&wx, x, 3); |
| EXPECT_GT(res, 0); |
| EXPECT_NOT_POISONED(wx); |
| } |
| |
| TEST(MemorySanitizer, mbrtowc) { |
| const char *x = "abc"; |
| wchar_t wx; |
| mbstate_t mbs; |
| memset(&mbs, 0, sizeof(mbs)); |
| int res = mbrtowc(&wx, x, 3, &mbs); |
| EXPECT_GT(res, 0); |
| EXPECT_NOT_POISONED(wx); |
| } |
| |
| TEST(MemorySanitizer, gettimeofday) { |
| struct timeval tv; |
| struct timezone tz; |
| break_optimization(&tv); |
| break_optimization(&tz); |
| assert(sizeof(tv) == 16); |
| assert(sizeof(tz) == 8); |
| EXPECT_POISONED(tv.tv_sec); |
| EXPECT_POISONED(tv.tv_usec); |
| EXPECT_POISONED(tz.tz_minuteswest); |
| EXPECT_POISONED(tz.tz_dsttime); |
| assert(0 == gettimeofday(&tv, &tz)); |
| EXPECT_NOT_POISONED(tv.tv_sec); |
| EXPECT_NOT_POISONED(tv.tv_usec); |
| EXPECT_NOT_POISONED(tz.tz_minuteswest); |
| EXPECT_NOT_POISONED(tz.tz_dsttime); |
| } |
| |
| TEST(MemorySanitizer, clock_gettime) { |
| struct timespec tp; |
| EXPECT_POISONED(tp.tv_sec); |
| EXPECT_POISONED(tp.tv_nsec); |
| assert(0 == clock_gettime(CLOCK_REALTIME, &tp)); |
| EXPECT_NOT_POISONED(tp.tv_sec); |
| EXPECT_NOT_POISONED(tp.tv_nsec); |
| } |
| |
| TEST(MemorySanitizer, clock_getres) { |
| struct timespec tp; |
| EXPECT_POISONED(tp.tv_sec); |
| EXPECT_POISONED(tp.tv_nsec); |
| assert(0 == clock_getres(CLOCK_REALTIME, 0)); |
| EXPECT_POISONED(tp.tv_sec); |
| EXPECT_POISONED(tp.tv_nsec); |
| assert(0 == clock_getres(CLOCK_REALTIME, &tp)); |
| EXPECT_NOT_POISONED(tp.tv_sec); |
| EXPECT_NOT_POISONED(tp.tv_nsec); |
| } |
| |
| TEST(MemorySanitizer, getitimer) { |
| struct itimerval it1, it2; |
| int res; |
| EXPECT_POISONED(it1.it_interval.tv_sec); |
| EXPECT_POISONED(it1.it_interval.tv_usec); |
| EXPECT_POISONED(it1.it_value.tv_sec); |
| EXPECT_POISONED(it1.it_value.tv_usec); |
| res = getitimer(ITIMER_VIRTUAL, &it1); |
| assert(!res); |
| EXPECT_NOT_POISONED(it1.it_interval.tv_sec); |
| EXPECT_NOT_POISONED(it1.it_interval.tv_usec); |
| EXPECT_NOT_POISONED(it1.it_value.tv_sec); |
| EXPECT_NOT_POISONED(it1.it_value.tv_usec); |
| |
| it1.it_interval.tv_sec = it1.it_value.tv_sec = 10000; |
| it1.it_interval.tv_usec = it1.it_value.tv_usec = 0; |
| |
| res = setitimer(ITIMER_VIRTUAL, &it1, &it2); |
| assert(!res); |
| EXPECT_NOT_POISONED(it2.it_interval.tv_sec); |
| EXPECT_NOT_POISONED(it2.it_interval.tv_usec); |
| EXPECT_NOT_POISONED(it2.it_value.tv_sec); |
| EXPECT_NOT_POISONED(it2.it_value.tv_usec); |
| |
| // Check that old_value can be 0, and disable the timer. |
| memset(&it1, 0, sizeof(it1)); |
| res = setitimer(ITIMER_VIRTUAL, &it1, 0); |
| assert(!res); |
| } |
| |
| TEST(MemorySanitizer, time) { |
| time_t t; |
| EXPECT_POISONED(t); |
| time_t t2 = time(&t); |
| assert(t2 != (time_t)-1); |
| EXPECT_NOT_POISONED(t); |
| } |
| |
| TEST(MemorySanitizer, localtime) { |
| time_t t = 123; |
| struct tm *time = localtime(&t); |
| assert(time != 0); |
| EXPECT_NOT_POISONED(time->tm_sec); |
| EXPECT_NOT_POISONED(time->tm_hour); |
| EXPECT_NOT_POISONED(time->tm_year); |
| EXPECT_NOT_POISONED(time->tm_isdst); |
| } |
| |
| TEST(MemorySanitizer, localtime_r) { |
| time_t t = 123; |
| struct tm time; |
| struct tm *res = localtime_r(&t, &time); |
| assert(res != 0); |
| EXPECT_NOT_POISONED(time.tm_sec); |
| EXPECT_NOT_POISONED(time.tm_hour); |
| EXPECT_NOT_POISONED(time.tm_year); |
| EXPECT_NOT_POISONED(time.tm_isdst); |
| } |
| |
| TEST(MemorySanitizer, mmap) { |
| const int size = 4096; |
| void *p1, *p2; |
| p1 = mmap(0, size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0); |
| __msan_poison(p1, size); |
| munmap(p1, size); |
| for (int i = 0; i < 1000; i++) { |
| p2 = mmap(0, size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0); |
| if (p2 == p1) |
| break; |
| else |
| munmap(p2, size); |
| } |
| if (p1 == p2) { |
| EXPECT_NOT_POISONED(*(char*)p2); |
| munmap(p2, size); |
| } |
| } |
| |
| // FIXME: enable and add ecvt. |
| // FIXME: check why msandr does nt handle fcvt. |
| TEST(MemorySanitizer, fcvt) { |
| int a, b; |
| break_optimization(&a); |
| break_optimization(&b); |
| EXPECT_POISONED(a); |
| EXPECT_POISONED(b); |
| char *str = fcvt(12345.6789, 10, &a, &b); |
| EXPECT_NOT_POISONED(a); |
| EXPECT_NOT_POISONED(b); |
| } |
| |
| TEST(MemorySanitizer, frexp) { |
| int x; |
| x = *GetPoisoned<int>(); |
| double r = frexp(1.1, &x); |
| EXPECT_NOT_POISONED(r); |
| EXPECT_NOT_POISONED(x); |
| |
| x = *GetPoisoned<int>(); |
| float rf = frexpf(1.1, &x); |
| EXPECT_NOT_POISONED(rf); |
| EXPECT_NOT_POISONED(x); |
| |
| x = *GetPoisoned<int>(); |
| double rl = frexpl(1.1, &x); |
| EXPECT_NOT_POISONED(rl); |
| EXPECT_NOT_POISONED(x); |
| } |
| |
| namespace { |
| |
| static int cnt; |
| |
| void SigactionHandler(int signo, siginfo_t* si, void* uc) { |
| assert(signo == SIGPROF); |
| assert(si); |
| EXPECT_NOT_POISONED(si->si_errno); |
| EXPECT_NOT_POISONED(si->si_pid); |
| #if __linux__ |
| # if defined(__x86_64__) |
| EXPECT_NOT_POISONED(((ucontext_t*)uc)->uc_mcontext.gregs[REG_RIP]); |
| # elif defined(__i386__) |
| EXPECT_NOT_POISONED(((ucontext_t*)uc)->uc_mcontext.gregs[REG_EIP]); |
| # endif |
| #endif |
| ++cnt; |
| } |
| |
| TEST(MemorySanitizer, sigaction) { |
| struct sigaction act = {}; |
| struct sigaction oldact = {}; |
| struct sigaction origact = {}; |
| |
| sigaction(SIGPROF, 0, &origact); |
| |
| act.sa_flags |= SA_SIGINFO; |
| act.sa_sigaction = &SigactionHandler; |
| sigaction(SIGPROF, &act, 0); |
| |
| kill(getpid(), SIGPROF); |
| |
| act.sa_flags &= ~SA_SIGINFO; |
| act.sa_handler = SIG_DFL; |
| sigaction(SIGPROF, &act, 0); |
| |
| act.sa_flags &= ~SA_SIGINFO; |
| act.sa_handler = SIG_IGN; |
| sigaction(SIGPROF, &act, &oldact); |
| EXPECT_FALSE(oldact.sa_flags & SA_SIGINFO); |
| EXPECT_EQ(SIG_DFL, oldact.sa_handler); |
| kill(getpid(), SIGPROF); |
| |
| act.sa_flags |= SA_SIGINFO; |
| act.sa_sigaction = &SigactionHandler; |
| sigaction(SIGPROF, &act, &oldact); |
| EXPECT_FALSE(oldact.sa_flags & SA_SIGINFO); |
| EXPECT_EQ(SIG_IGN, oldact.sa_handler); |
| kill(getpid(), SIGPROF); |
| |
| act.sa_flags &= ~SA_SIGINFO; |
| act.sa_handler = SIG_DFL; |
| sigaction(SIGPROF, &act, &oldact); |
| EXPECT_TRUE(oldact.sa_flags & SA_SIGINFO); |
| EXPECT_EQ(&SigactionHandler, oldact.sa_sigaction); |
| EXPECT_EQ(2, cnt); |
| |
| sigaction(SIGPROF, &origact, 0); |
| } |
| |
| } // namespace |
| |
| struct StructWithDtor { |
| ~StructWithDtor(); |
| }; |
| |
| NOINLINE StructWithDtor::~StructWithDtor() { |
| break_optimization(0); |
| } |
| |
| TEST(MemorySanitizer, Invoke) { |
| StructWithDtor s; // Will cause the calls to become invokes. |
| EXPECT_NOT_POISONED(0); |
| EXPECT_POISONED(*GetPoisoned<int>()); |
| EXPECT_NOT_POISONED(0); |
| EXPECT_POISONED(*GetPoisoned<int>()); |
| EXPECT_POISONED(ReturnPoisoned<S4>()); |
| } |
| |
| TEST(MemorySanitizer, ptrtoint) { |
| // Test that shadow is propagated through pointer-to-integer conversion. |
| void* p = (void*)0xABCD; |
| __msan_poison(((char*)&p) + 1, sizeof(p)); |
| EXPECT_NOT_POISONED((((uintptr_t)p) & 0xFF) == 0); |
| |
| void* q = (void*)0xABCD; |
| __msan_poison(&q, sizeof(q) - 1); |
| EXPECT_POISONED((((uintptr_t)q) & 0xFF) == 0); |
| } |
| |
| static void vaargsfn2(int guard, ...) { |
| va_list vl; |
| va_start(vl, guard); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_POISONED(va_arg(vl, double)); |
| va_end(vl); |
| } |
| |
| static void vaargsfn(int guard, ...) { |
| va_list vl; |
| va_start(vl, guard); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_POISONED(va_arg(vl, int)); |
| // The following call will overwrite __msan_param_tls. |
| // Checks after it test that arg shadow was somehow saved across the call. |
| vaargsfn2(1, 2, 3, 4, *GetPoisoned<double>()); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_POISONED(va_arg(vl, int)); |
| va_end(vl); |
| } |
| |
| TEST(MemorySanitizer, VAArgTest) { |
| int* x = GetPoisoned<int>(); |
| int* y = GetPoisoned<int>(4); |
| vaargsfn(1, 13, *x, 42, *y); |
| } |
| |
| static void vaargsfn_many(int guard, ...) { |
| va_list vl; |
| va_start(vl, guard); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_POISONED(va_arg(vl, int)); |
| va_end(vl); |
| } |
| |
| TEST(MemorySanitizer, VAArgManyTest) { |
| int* x = GetPoisoned<int>(); |
| int* y = GetPoisoned<int>(4); |
| vaargsfn_many(1, 2, *x, 3, 4, 5, 6, 7, 8, 9, *y); |
| } |
| |
| static void vaargsfn_pass2(va_list vl) { |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_POISONED(va_arg(vl, int)); |
| } |
| |
| static void vaargsfn_pass(int guard, ...) { |
| va_list vl; |
| va_start(vl, guard); |
| EXPECT_POISONED(va_arg(vl, int)); |
| vaargsfn_pass2(vl); |
| va_end(vl); |
| } |
| |
| TEST(MemorySanitizer, VAArgPass) { |
| int* x = GetPoisoned<int>(); |
| int* y = GetPoisoned<int>(4); |
| vaargsfn_pass(1, *x, 2, 3, *y); |
| } |
| |
| static void vaargsfn_copy2(va_list vl) { |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_POISONED(va_arg(vl, int)); |
| } |
| |
| static void vaargsfn_copy(int guard, ...) { |
| va_list vl; |
| va_start(vl, guard); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_POISONED(va_arg(vl, int)); |
| va_list vl2; |
| va_copy(vl2, vl); |
| vaargsfn_copy2(vl2); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_POISONED(va_arg(vl, int)); |
| va_end(vl); |
| } |
| |
| TEST(MemorySanitizer, VAArgCopy) { |
| int* x = GetPoisoned<int>(); |
| int* y = GetPoisoned<int>(4); |
| vaargsfn_copy(1, 2, *x, 3, *y); |
| } |
| |
| static void vaargsfn_ptr(int guard, ...) { |
| va_list vl; |
| va_start(vl, guard); |
| EXPECT_NOT_POISONED(va_arg(vl, int*)); |
| EXPECT_POISONED(va_arg(vl, int*)); |
| EXPECT_NOT_POISONED(va_arg(vl, int*)); |
| EXPECT_POISONED(va_arg(vl, double*)); |
| va_end(vl); |
| } |
| |
| TEST(MemorySanitizer, VAArgPtr) { |
| int** x = GetPoisoned<int*>(); |
| double** y = GetPoisoned<double*>(8); |
| int z; |
| vaargsfn_ptr(1, &z, *x, &z, *y); |
| } |
| |
| static void vaargsfn_overflow(int guard, ...) { |
| va_list vl; |
| va_start(vl, guard); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| |
| EXPECT_NOT_POISONED(va_arg(vl, double)); |
| EXPECT_NOT_POISONED(va_arg(vl, double)); |
| EXPECT_NOT_POISONED(va_arg(vl, double)); |
| EXPECT_POISONED(va_arg(vl, double)); |
| EXPECT_NOT_POISONED(va_arg(vl, double)); |
| EXPECT_POISONED(va_arg(vl, int*)); |
| EXPECT_NOT_POISONED(va_arg(vl, double)); |
| EXPECT_NOT_POISONED(va_arg(vl, double)); |
| |
| EXPECT_POISONED(va_arg(vl, int)); |
| EXPECT_POISONED(va_arg(vl, double)); |
| EXPECT_POISONED(va_arg(vl, int*)); |
| |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| EXPECT_NOT_POISONED(va_arg(vl, double)); |
| EXPECT_NOT_POISONED(va_arg(vl, int*)); |
| |
| EXPECT_POISONED(va_arg(vl, int)); |
| EXPECT_POISONED(va_arg(vl, double)); |
| EXPECT_POISONED(va_arg(vl, int*)); |
| |
| va_end(vl); |
| } |
| |
| TEST(MemorySanitizer, VAArgOverflow) { |
| int* x = GetPoisoned<int>(); |
| double* y = GetPoisoned<double>(8); |
| int** p = GetPoisoned<int*>(16); |
| int z; |
| vaargsfn_overflow(1, |
| 1, 2, *x, 4, 5, 6, |
| 1.1, 2.2, 3.3, *y, 5.5, *p, 7.7, 8.8, |
| // the following args will overflow for sure |
| *x, *y, *p, |
| 7, 9.9, &z, |
| *x, *y, *p); |
| } |
| |
| static void vaargsfn_tlsoverwrite2(int guard, ...) { |
| va_list vl; |
| va_start(vl, guard); |
| EXPECT_NOT_POISONED(va_arg(vl, int)); |
| va_end(vl); |
| } |
| |
| static void vaargsfn_tlsoverwrite(int guard, ...) { |
| // This call will overwrite TLS contents unless it's backed up somewhere. |
| vaargsfn_tlsoverwrite2(2, 42); |
| va_list vl; |
| va_start(vl, guard); |
| EXPECT_POISONED(va_arg(vl, int)); |
| va_end(vl); |
| } |
| |
| TEST(MemorySanitizer, VAArgTLSOverwrite) { |
| int* x = GetPoisoned<int>(); |
| vaargsfn_tlsoverwrite(1, *x); |
| } |
| |
| struct StructByVal { |
| int a, b, c, d, e, f; |
| }; |
| |
| NOINLINE void StructByValTestFunc(struct StructByVal s) { |
| EXPECT_NOT_POISONED(s.a); |
| EXPECT_POISONED(s.b); |
| EXPECT_NOT_POISONED(s.c); |
| EXPECT_POISONED(s.d); |
| EXPECT_NOT_POISONED(s.e); |
| EXPECT_POISONED(s.f); |
| } |
| |
| NOINLINE void StructByValTestFunc1(struct StructByVal s) { |
| StructByValTestFunc(s); |
| } |
| |
| NOINLINE void StructByValTestFunc2(int z, struct StructByVal s) { |
| StructByValTestFunc(s); |
| } |
| |
| TEST(MemorySanitizer, StructByVal) { |
| // Large aggregates are passed as "byval" pointer argument in LLVM. |
| struct StructByVal s; |
| s.a = 1; |
| s.b = *GetPoisoned<int>(); |
| s.c = 2; |
| s.d = *GetPoisoned<int>(); |
| s.e = 3; |
| s.f = *GetPoisoned<int>(); |
| StructByValTestFunc(s); |
| StructByValTestFunc1(s); |
| StructByValTestFunc2(0, s); |
| } |
| |
| |
| #if MSAN_HAS_M128 |
| NOINLINE __m128i m128Eq(__m128i *a, __m128i *b) { return _mm_cmpeq_epi16(*a, *b); } |
| NOINLINE __m128i m128Lt(__m128i *a, __m128i *b) { return _mm_cmplt_epi16(*a, *b); } |
| TEST(MemorySanitizer, m128) { |
| __m128i a = _mm_set1_epi16(0x1234); |
| __m128i b = _mm_set1_epi16(0x7890); |
| EXPECT_NOT_POISONED(m128Eq(&a, &b)); |
| EXPECT_NOT_POISONED(m128Lt(&a, &b)); |
| } |
| // FIXME: add more tests for __m128i. |
| #endif // MSAN_HAS_M128 |
| |
| // We should not complain when copying this poisoned hole. |
| struct StructWithHole { |
| U4 a; |
| // 4-byte hole. |
| U8 b; |
| }; |
| |
| NOINLINE StructWithHole ReturnStructWithHole() { |
| StructWithHole res; |
| __msan_poison(&res, sizeof(res)); |
| res.a = 1; |
| res.b = 2; |
| return res; |
| } |
| |
| TEST(MemorySanitizer, StructWithHole) { |
| StructWithHole a = ReturnStructWithHole(); |
| break_optimization(&a); |
| } |
| |
| template <class T> |
| NOINLINE T ReturnStruct() { |
| T res; |
| __msan_poison(&res, sizeof(res)); |
| res.a = 1; |
| return res; |
| } |
| |
| template <class T> |
| NOINLINE void TestReturnStruct() { |
| T s1 = ReturnStruct<T>(); |
| EXPECT_NOT_POISONED(s1.a); |
| EXPECT_POISONED(s1.b); |
| } |
| |
| struct SSS1 { |
| int a, b, c; |
| }; |
| struct SSS2 { |
| int b, a, c; |
| }; |
| struct SSS3 { |
| int b, c, a; |
| }; |
| struct SSS4 { |
| int c, b, a; |
| }; |
| |
| struct SSS5 { |
| int a; |
| float b; |
| }; |
| struct SSS6 { |
| int a; |
| double b; |
| }; |
| struct SSS7 { |
| S8 b; |
| int a; |
| }; |
| struct SSS8 { |
| S2 b; |
| S8 a; |
| }; |
| |
| TEST(MemorySanitizer, IntStruct3) { |
| TestReturnStruct<SSS1>(); |
| TestReturnStruct<SSS2>(); |
| TestReturnStruct<SSS3>(); |
| TestReturnStruct<SSS4>(); |
| TestReturnStruct<SSS5>(); |
| TestReturnStruct<SSS6>(); |
| TestReturnStruct<SSS7>(); |
| TestReturnStruct<SSS8>(); |
| } |
| |
| struct LongStruct { |
| U1 a1, b1; |
| U2 a2, b2; |
| U4 a4, b4; |
| U8 a8, b8; |
| }; |
| |
| NOINLINE LongStruct ReturnLongStruct1() { |
| LongStruct res; |
| __msan_poison(&res, sizeof(res)); |
| res.a1 = res.a2 = res.a4 = res.a8 = 111; |
| // leaves b1, .., b8 poisoned. |
| return res; |
| } |
| |
| NOINLINE LongStruct ReturnLongStruct2() { |
| LongStruct res; |
| __msan_poison(&res, sizeof(res)); |
| res.b1 = res.b2 = res.b4 = res.b8 = 111; |
| // leaves a1, .., a8 poisoned. |
| return res; |
| } |
| |
| TEST(MemorySanitizer, LongStruct) { |
| LongStruct s1 = ReturnLongStruct1(); |
| __msan_print_shadow(&s1, sizeof(s1)); |
| EXPECT_NOT_POISONED(s1.a1); |
| EXPECT_NOT_POISONED(s1.a2); |
| EXPECT_NOT_POISONED(s1.a4); |
| EXPECT_NOT_POISONED(s1.a8); |
| |
| EXPECT_POISONED(s1.b1); |
| EXPECT_POISONED(s1.b2); |
| EXPECT_POISONED(s1.b4); |
| EXPECT_POISONED(s1.b8); |
| |
| LongStruct s2 = ReturnLongStruct2(); |
| __msan_print_shadow(&s2, sizeof(s2)); |
| EXPECT_NOT_POISONED(s2.b1); |
| EXPECT_NOT_POISONED(s2.b2); |
| EXPECT_NOT_POISONED(s2.b4); |
| EXPECT_NOT_POISONED(s2.b8); |
| |
| EXPECT_POISONED(s2.a1); |
| EXPECT_POISONED(s2.a2); |
| EXPECT_POISONED(s2.a4); |
| EXPECT_POISONED(s2.a8); |
| } |
| |
| TEST(MemorySanitizer, getrlimit) { |
| struct rlimit limit; |
| __msan_poison(&limit, sizeof(limit)); |
| int result = getrlimit(RLIMIT_DATA, &limit); |
| assert(result == 0); |
| EXPECT_NOT_POISONED(limit.rlim_cur); |
| EXPECT_NOT_POISONED(limit.rlim_max); |
| } |
| |
| TEST(MemorySanitizer, getrusage) { |
| struct rusage usage; |
| __msan_poison(&usage, sizeof(usage)); |
| int result = getrusage(RUSAGE_SELF, &usage); |
| assert(result == 0); |
| EXPECT_NOT_POISONED(usage.ru_utime.tv_sec); |
| EXPECT_NOT_POISONED(usage.ru_utime.tv_usec); |
| EXPECT_NOT_POISONED(usage.ru_stime.tv_sec); |
| EXPECT_NOT_POISONED(usage.ru_stime.tv_usec); |
| EXPECT_NOT_POISONED(usage.ru_maxrss); |
| EXPECT_NOT_POISONED(usage.ru_minflt); |
| EXPECT_NOT_POISONED(usage.ru_majflt); |
| EXPECT_NOT_POISONED(usage.ru_inblock); |
| EXPECT_NOT_POISONED(usage.ru_oublock); |
| EXPECT_NOT_POISONED(usage.ru_nvcsw); |
| EXPECT_NOT_POISONED(usage.ru_nivcsw); |
| } |
| |
| #ifdef __GLIBC__ |
| extern char *program_invocation_name; |
| #else // __GLIBC__ |
| # error "TODO: port this" |
| #endif |
| |
| static void dladdr_testfn() {} |
| |
| TEST(MemorySanitizer, dladdr) { |
| Dl_info info; |
| __msan_poison(&info, sizeof(info)); |
| int result = dladdr((const void*)dladdr_testfn, &info); |
| assert(result != 0); |
| EXPECT_NOT_POISONED((unsigned long)info.dli_fname); |
| if (info.dli_fname) |
| EXPECT_NOT_POISONED(strlen(info.dli_fname)); |
| EXPECT_NOT_POISONED((unsigned long)info.dli_fbase); |
| EXPECT_NOT_POISONED((unsigned long)info.dli_sname); |
| if (info.dli_sname) |
| EXPECT_NOT_POISONED(strlen(info.dli_sname)); |
| EXPECT_NOT_POISONED((unsigned long)info.dli_saddr); |
| } |
| |
| static int dl_phdr_callback(struct dl_phdr_info *info, size_t size, void *data) { |
| (*(int *)data)++; |
| EXPECT_NOT_POISONED(info->dlpi_addr); |
| EXPECT_NOT_POISONED(strlen(info->dlpi_name)); |
| EXPECT_NOT_POISONED(info->dlpi_phnum); |
| for (int i = 0; i < info->dlpi_phnum; ++i) |
| EXPECT_NOT_POISONED(info->dlpi_phdr[i]); |
| return 0; |
| } |
| |
| #ifndef MSAN_TEST_DISABLE_DLOPEN |
| |
| // Compute the path to our loadable DSO. We assume it's in the same |
| // directory. Only use string routines that we intercept so far to do this. |
| static int PathToLoadable(char *buf, size_t sz) { |
| const char *basename = "libmsan_loadable.x86_64.so"; |
| char *argv0 = program_invocation_name; |
| char *last_slash = strrchr(argv0, '/'); |
| assert(last_slash); |
| int res = |
| snprintf(buf, sz, "%.*s/%s", int(last_slash - argv0), argv0, basename); |
| return res < sz ? 0 : res; |
| } |
| |
| TEST(MemorySanitizer, dl_iterate_phdr) { |
| char path[4096]; |
| int res = PathToLoadable(path, sizeof(path)); |
| assert(!res); |
| |
| // Having at least one dlopen'ed library in the process makes this more |
| // entertaining. |
| void *lib = dlopen(path, RTLD_LAZY); |
| ASSERT_NE((void*)0, lib); |
| |
| int count = 0; |
| int result = dl_iterate_phdr(dl_phdr_callback, &count); |
| assert(count > 0); |
| |
| dlclose(lib); |
| } |
| |
| |
| TEST(MemorySanitizer, dlopen) { |
| char path[4096]; |
| int res = PathToLoadable(path, sizeof(path)); |
| assert(!res); |
| |
| // We need to clear shadow for globals when doing dlopen. In order to test |
| // this, we have to poison the shadow for the DSO before we load it. In |
| // general this is difficult, but the loader tends to reload things in the |
| // same place, so we open, close, and then reopen. The global should always |
| // start out clean after dlopen. |
| for (int i = 0; i < 2; i++) { |
| void *lib = dlopen(path, RTLD_LAZY); |
| if (lib == NULL) { |
| printf("dlerror: %s\n", dlerror()); |
| assert(lib != NULL); |
| } |
| void **(*get_dso_global)() = (void **(*)())dlsym(lib, "get_dso_global"); |
| assert(get_dso_global); |
| void **dso_global = get_dso_global(); |
| EXPECT_NOT_POISONED(*dso_global); |
| __msan_poison(dso_global, sizeof(*dso_global)); |
| EXPECT_POISONED(*dso_global); |
| dlclose(lib); |
| } |
| } |
| |
| // Regression test for a crash in dlopen() interceptor. |
| TEST(MemorySanitizer, dlopenFailed) { |
| const char *path = "/libmsan_loadable_does_not_exist.x86_64.so"; |
| void *lib = dlopen(path, RTLD_LAZY); |
| ASSERT_EQ(0, lib); |
| } |
| |
| #endif // MSAN_TEST_DISABLE_DLOPEN |
| |
| TEST(MemorySanitizer, scanf) { |
| const char *input = "42 hello"; |
| int* d = new int; |
| char* s = new char[7]; |
| int res = sscanf(input, "%d %5s", d, s); |
| printf("res %d\n", res); |
| assert(res == 2); |
| EXPECT_NOT_POISONED(*d); |
| EXPECT_NOT_POISONED(s[0]); |
| EXPECT_NOT_POISONED(s[1]); |
| EXPECT_NOT_POISONED(s[2]); |
| EXPECT_NOT_POISONED(s[3]); |
| EXPECT_NOT_POISONED(s[4]); |
| EXPECT_NOT_POISONED(s[5]); |
| EXPECT_POISONED(s[6]); |
| delete s; |
| delete d; |
| } |
| |
| static void *SimpleThread_threadfn(void* data) { |
| return new int; |
| } |
| |
| TEST(MemorySanitizer, SimpleThread) { |
| pthread_t t; |
| void *p; |
| int res = pthread_create(&t, NULL, SimpleThread_threadfn, NULL); |
| assert(!res); |
| EXPECT_NOT_POISONED(t); |
| res = pthread_join(t, &p); |
| assert(!res); |
| if (!__msan_has_dynamic_component()) // FIXME: intercept pthread_join (?). |
| __msan_unpoison(&p, sizeof(p)); |
| delete (int*)p; |
| } |
| |
| static void *SmallStackThread_threadfn(void* data) { |
| return 0; |
| } |
| |
| TEST(MemorySanitizer, SmallStackThread) { |
| pthread_attr_t attr; |
| pthread_t t; |
| void *p; |
| int res; |
| res = pthread_attr_init(&attr); |
| ASSERT_EQ(0, res); |
| res = pthread_attr_setstacksize(&attr, 64 * 1024); |
| ASSERT_EQ(0, res); |
| res = pthread_create(&t, &attr, SmallStackThread_threadfn, NULL); |
| ASSERT_EQ(0, res); |
| res = pthread_join(t, &p); |
| ASSERT_EQ(0, res); |
| res = pthread_attr_destroy(&attr); |
| ASSERT_EQ(0, res); |
| } |
| |
| TEST(MemorySanitizer, PreAllocatedStackThread) { |
| pthread_attr_t attr; |
| pthread_t t; |
| int res; |
| res = pthread_attr_init(&attr); |
| ASSERT_EQ(0, res); |
| void *stack; |
| const size_t kStackSize = 64 * 1024; |
| res = posix_memalign(&stack, 4096, kStackSize); |
| ASSERT_EQ(0, res); |
| res = pthread_attr_setstack(&attr, stack, kStackSize); |
| ASSERT_EQ(0, res); |
| // A small self-allocated stack can not be extended by the tool. |
| // In this case pthread_create is expected to fail. |
| res = pthread_create(&t, &attr, SmallStackThread_threadfn, NULL); |
| EXPECT_NE(0, res); |
| res = pthread_attr_destroy(&attr); |
| ASSERT_EQ(0, res); |
| } |
| |
| TEST(MemorySanitizer, pthread_getschedparam) { |
| int policy; |
| struct sched_param param; |
| int res = pthread_getschedparam(pthread_self(), &policy, ¶m); |
| ASSERT_EQ(0, res); |
| EXPECT_NOT_POISONED(policy); |
| EXPECT_NOT_POISONED(param.sched_priority); |
| } |
| |
| TEST(MemorySanitizer, pthread_key_create) { |
| pthread_key_t key; |
| int res = pthread_key_create(&key, NULL); |
| assert(!res); |
| EXPECT_NOT_POISONED(key); |
| res = pthread_key_delete(key); |
| assert(!res); |
| } |
| |
| TEST(MemorySanitizer, posix_memalign) { |
| void *p; |
| EXPECT_POISONED(p); |
| int res = posix_memalign(&p, 4096, 13); |
| ASSERT_EQ(0, res); |
| EXPECT_NOT_POISONED(p); |
| free(p); |
| } |
| |
| TEST(MemorySanitizer, inet_pton) { |
| const char *s = "1:0:0:0:0:0:0:8"; |
| unsigned char buf[sizeof(struct in6_addr)]; |
| int res = inet_pton(AF_INET6, s, buf); |
| ASSERT_EQ(1, res); |
| EXPECT_NOT_POISONED(buf[0]); |
| EXPECT_NOT_POISONED(buf[sizeof(struct in6_addr) - 1]); |
| |
| char s_out[INET6_ADDRSTRLEN]; |
| EXPECT_POISONED(s_out[3]); |
| const char *q = inet_ntop(AF_INET6, buf, s_out, INET6_ADDRSTRLEN); |
| ASSERT_NE((void*)0, q); |
| EXPECT_NOT_POISONED(s_out[3]); |
| } |
| |
| TEST(MemorySanitizer, inet_aton) { |
| const char *s = "127.0.0.1"; |
| struct in_addr in[2]; |
| int res = inet_aton(s, in); |
| ASSERT_NE(0, res); |
| EXPECT_NOT_POISONED(in[0]); |
| EXPECT_POISONED(*(char *)(in + 1)); |
| } |
| |
| TEST(MemorySanitizer, uname) { |
| struct utsname u; |
| int res = uname(&u); |
| assert(!res); |
| EXPECT_NOT_POISONED(strlen(u.sysname)); |
| EXPECT_NOT_POISONED(strlen(u.nodename)); |
| EXPECT_NOT_POISONED(strlen(u.release)); |
| EXPECT_NOT_POISONED(strlen(u.version)); |
| EXPECT_NOT_POISONED(strlen(u.machine)); |
| } |
| |
| TEST(MemorySanitizer, gethostname) { |
| char buf[100]; |
| int res = gethostname(buf, 100); |
| assert(!res); |
| EXPECT_NOT_POISONED(strlen(buf)); |
| } |
| |
| TEST(MemorySanitizer, sysinfo) { |
| struct sysinfo info; |
| int res = sysinfo(&info); |
| assert(!res); |
| EXPECT_NOT_POISONED(info); |
| } |
| |
| TEST(MemorySanitizer, getpwuid) { |
| struct passwd *p = getpwuid(0); // root |
| assert(p); |
| EXPECT_NOT_POISONED(p->pw_name); |
| assert(p->pw_name); |
| EXPECT_NOT_POISONED(p->pw_name[0]); |
| EXPECT_NOT_POISONED(p->pw_uid); |
| assert(p->pw_uid == 0); |
| } |
| |
| TEST(MemorySanitizer, getpwnam_r) { |
| struct passwd pwd; |
| struct passwd *pwdres; |
| char buf[10000]; |
| int res = getpwnam_r("root", &pwd, buf, sizeof(buf), &pwdres); |
| assert(!res); |
| EXPECT_NOT_POISONED(pwd.pw_name); |
| assert(pwd.pw_name); |
| EXPECT_NOT_POISONED(pwd.pw_name[0]); |
| EXPECT_NOT_POISONED(pwd.pw_uid); |
| assert(pwd.pw_uid == 0); |
| } |
| |
| TEST(MemorySanitizer, getpwnam_r_positive) { |
| struct passwd pwd; |
| struct passwd *pwdres; |
| char s[5]; |
| strncpy(s, "abcd", 5); |
| __msan_poison(s, 5); |
| char buf[10000]; |
| int res; |
| EXPECT_UMR(res = getpwnam_r(s, &pwd, buf, sizeof(buf), &pwdres)); |
| } |
| |
| TEST(MemorySanitizer, getgrnam_r) { |
| struct group grp; |
| struct group *grpres; |
| char buf[10000]; |
| int res = getgrnam_r("root", &grp, buf, sizeof(buf), &grpres); |
| assert(!res); |
| EXPECT_NOT_POISONED(grp.gr_name); |
| assert(grp.gr_name); |
| EXPECT_NOT_POISONED(grp.gr_name[0]); |
| EXPECT_NOT_POISONED(grp.gr_gid); |
| } |
| |
| template<class T> |
| static bool applySlt(T value, T shadow) { |
| __msan_partial_poison(&value, &shadow, sizeof(T)); |
| volatile bool zzz = true; |
| // This "|| zzz" trick somehow makes LLVM emit "icmp slt" instead of |
| // a shift-and-trunc to get at the highest bit. |
| volatile bool v = value < 0 || zzz; |
| return v; |
| } |
| |
| TEST(MemorySanitizer, SignedCompareWithZero) { |
| EXPECT_NOT_POISONED(applySlt<S4>(0xF, 0xF)); |
| EXPECT_NOT_POISONED(applySlt<S4>(0xF, 0xFF)); |
| EXPECT_NOT_POISONED(applySlt<S4>(0xF, 0xFFFFFF)); |
| EXPECT_NOT_POISONED(applySlt<S4>(0xF, 0x7FFFFFF)); |
| EXPECT_UMR(applySlt<S4>(0xF, 0x80FFFFFF)); |
| EXPECT_UMR(applySlt<S4>(0xF, 0xFFFFFFFF)); |
| } |
| |
| template <class T, class S> |
| static T poisoned(T Va, S Sa) { |
| char SIZE_CHECK1[(ssize_t)sizeof(T) - (ssize_t)sizeof(S)]; |
| char SIZE_CHECK2[(ssize_t)sizeof(S) - (ssize_t)sizeof(T)]; |
| T a; |
| a = Va; |
| __msan_partial_poison(&a, &Sa, sizeof(T)); |
| return a; |
| } |
| |
| TEST(MemorySanitizer, ICmpRelational) { |
| EXPECT_NOT_POISONED(poisoned(0, 0) < poisoned(0, 0)); |
| EXPECT_NOT_POISONED(poisoned(0U, 0) < poisoned(0U, 0)); |
| EXPECT_NOT_POISONED(poisoned(0LL, 0LLU) < poisoned(0LL, 0LLU)); |
| EXPECT_NOT_POISONED(poisoned(0LLU, 0LLU) < poisoned(0LLU, 0LLU)); |
| EXPECT_POISONED(poisoned(0xFF, 0xFF) < poisoned(0xFF, 0xFF)); |
| EXPECT_POISONED(poisoned(0xFFFFFFFFU, 0xFFFFFFFFU) < |
| poisoned(0xFFFFFFFFU, 0xFFFFFFFFU)); |
| EXPECT_POISONED(poisoned(-1, 0xFFFFFFFFU) < |
| poisoned(-1, 0xFFFFFFFFU)); |
| |
| EXPECT_NOT_POISONED(poisoned(0, 0) <= poisoned(0, 0)); |
| EXPECT_NOT_POISONED(poisoned(0U, 0) <= poisoned(0U, 0)); |
| EXPECT_NOT_POISONED(poisoned(0LL, 0LLU) <= poisoned(0LL, 0LLU)); |
| EXPECT_NOT_POISONED(poisoned(0LLU, 0LLU) <= poisoned(0LLU, 0LLU)); |
| EXPECT_POISONED(poisoned(0xFF, 0xFF) <= poisoned(0xFF, 0xFF)); |
| EXPECT_POISONED(poisoned(0xFFFFFFFFU, 0xFFFFFFFFU) <= |
| poisoned(0xFFFFFFFFU, 0xFFFFFFFFU)); |
| EXPECT_POISONED(poisoned(-1, 0xFFFFFFFFU) <= |
| poisoned(-1, 0xFFFFFFFFU)); |
| |
| EXPECT_NOT_POISONED(poisoned(0, 0) > poisoned(0, 0)); |
| EXPECT_NOT_POISONED(poisoned(0U, 0) > poisoned(0U, 0)); |
| EXPECT_NOT_POISONED(poisoned(0LL, 0LLU) > poisoned(0LL, 0LLU)); |
| EXPECT_NOT_POISONED(poisoned(0LLU, 0LLU) > poisoned(0LLU, 0LLU)); |
| EXPECT_POISONED(poisoned(0xFF, 0xFF) > poisoned(0xFF, 0xFF)); |
| EXPECT_POISONED(poisoned(0xFFFFFFFFU, 0xFFFFFFFFU) > |
| poisoned(0xFFFFFFFFU, 0xFFFFFFFFU)); |
| EXPECT_POISONED(poisoned(-1, 0xFFFFFFFFU) > |
| poisoned(-1, 0xFFFFFFFFU)); |
| |
| EXPECT_NOT_POISONED(poisoned(0, 0) >= poisoned(0, 0)); |
| EXPECT_NOT_POISONED(poisoned(0U, 0) >= poisoned(0U, 0)); |
| EXPECT_NOT_POISONED(poisoned(0LL, 0LLU) >= poisoned(0LL, 0LLU)); |
| EXPECT_NOT_POISONED(poisoned(0LLU, 0LLU) >= poisoned(0LLU, 0LLU)); |
| EXPECT_POISONED(poisoned(0xFF, 0xFF) >= poisoned(0xFF, 0xFF)); |
| EXPECT_POISONED(poisoned(0xFFFFFFFFU, 0xFFFFFFFFU) >= |
| poisoned(0xFFFFFFFFU, 0xFFFFFFFFU)); |
| EXPECT_POISONED(poisoned(-1, 0xFFFFFFFFU) >= |
| poisoned(-1, 0xFFFFFFFFU)); |
| |
| EXPECT_POISONED(poisoned(6, 0xF) > poisoned(7, 0)); |
| EXPECT_POISONED(poisoned(0xF, 0xF) > poisoned(7, 0)); |
| |
| EXPECT_NOT_POISONED(poisoned(-1, 0x80000000U) >= poisoned(-1, 0U)); |
| } |
| |
| #if MSAN_HAS_M128 |
| TEST(MemorySanitizer, ICmpVectorRelational) { |
| EXPECT_NOT_POISONED( |
| _mm_cmplt_epi16(poisoned(_mm_set1_epi16(0), _mm_set1_epi16(0)), |
| poisoned(_mm_set1_epi16(0), _mm_set1_epi16(0)))); |
| EXPECT_NOT_POISONED( |
| _mm_cmplt_epi16(poisoned(_mm_set1_epi32(0), _mm_set1_epi32(0)), |
| poisoned(_mm_set1_epi32(0), _mm_set1_epi32(0)))); |
| EXPECT_POISONED( |
| _mm_cmplt_epi16(poisoned(_mm_set1_epi16(0), _mm_set1_epi16(0xFFFF)), |
| poisoned(_mm_set1_epi16(0), _mm_set1_epi16(0xFFFF)))); |
| EXPECT_POISONED(_mm_cmpgt_epi16(poisoned(_mm_set1_epi16(6), _mm_set1_epi16(0xF)), |
| poisoned(_mm_set1_epi16(7), _mm_set1_epi16(0)))); |
| } |
| #endif |
| |
| // Volatile bitfield store is implemented as load-mask-store |
| // Test that we don't warn on the store of (uninitialized) padding. |
| struct VolatileBitfieldStruct { |
| volatile unsigned x : 1; |
| unsigned y : 1; |
| }; |
| |
| TEST(MemorySanitizer, VolatileBitfield) { |
| VolatileBitfieldStruct *S = new VolatileBitfieldStruct; |
| S->x = 1; |
| EXPECT_NOT_POISONED((unsigned)S->x); |
| EXPECT_POISONED((unsigned)S->y); |
| } |
| |
| TEST(MemorySanitizer, UnalignedLoad) { |
| char x[32]; |
| memset(x + 8, 0, 16); |
| EXPECT_POISONED(__sanitizer_unaligned_load16(x+6)); |
| EXPECT_POISONED(__sanitizer_unaligned_load16(x+7)); |
| EXPECT_NOT_POISONED(__sanitizer_unaligned_load16(x+8)); |
| EXPECT_NOT_POISONED(__sanitizer_unaligned_load16(x+9)); |
| EXPECT_NOT_POISONED(__sanitizer_unaligned_load16(x+22)); |
| EXPECT_POISONED(__sanitizer_unaligned_load16(x+23)); |
| EXPECT_POISONED(__sanitizer_unaligned_load16(x+24)); |
| |
| EXPECT_POISONED(__sanitizer_unaligned_load32(x+4)); |
| EXPECT_POISONED(__sanitizer_unaligned_load32(x+7)); |
| EXPECT_NOT_POISONED(__sanitizer_unaligned_load32(x+8)); |
| EXPECT_NOT_POISONED(__sanitizer_unaligned_load32(x+9)); |
| EXPECT_NOT_POISONED(__sanitizer_unaligned_load32(x+20)); |
| EXPECT_POISONED(__sanitizer_unaligned_load32(x+21)); |
| EXPECT_POISONED(__sanitizer_unaligned_load32(x+24)); |
| |
| EXPECT_POISONED(__sanitizer_unaligned_load64(x)); |
| EXPECT_POISONED(__sanitizer_unaligned_load64(x+1)); |
| EXPECT_POISONED(__sanitizer_unaligned_load64(x+7)); |
| EXPECT_NOT_POISONED(__sanitizer_unaligned_load64(x+8)); |
| EXPECT_NOT_POISONED(__sanitizer_unaligned_load64(x+9)); |
| EXPECT_NOT_POISONED(__sanitizer_unaligned_load64(x+16)); |
| EXPECT_POISONED(__sanitizer_unaligned_load64(x+17)); |
| EXPECT_POISONED(__sanitizer_unaligned_load64(x+21)); |
| EXPECT_POISONED(__sanitizer_unaligned_load64(x+24)); |
| } |
| |
| TEST(MemorySanitizer, UnalignedStore16) { |
| char x[5]; |
| U2 y = 0; |
| __msan_poison(&y, 1); |
| __sanitizer_unaligned_store16(x + 1, y); |
| EXPECT_POISONED(x[0]); |
| EXPECT_POISONED(x[1]); |
| EXPECT_NOT_POISONED(x[2]); |
| EXPECT_POISONED(x[3]); |
| EXPECT_POISONED(x[4]); |
| } |
| |
| TEST(MemorySanitizer, UnalignedStore32) { |
| char x[8]; |
| U4 y4 = 0; |
| __msan_poison(&y4, 2); |
| __sanitizer_unaligned_store32(x+3, y4); |
| EXPECT_POISONED(x[0]); |
| EXPECT_POISONED(x[1]); |
| EXPECT_POISONED(x[2]); |
| EXPECT_POISONED(x[3]); |
| EXPECT_POISONED(x[4]); |
| EXPECT_NOT_POISONED(x[5]); |
| EXPECT_NOT_POISONED(x[6]); |
| EXPECT_POISONED(x[7]); |
| } |
| |
| TEST(MemorySanitizer, UnalignedStore64) { |
| char x[16]; |
| U8 y = 0; |
| __msan_poison(&y, 3); |
| __msan_poison(((char *)&y) + sizeof(y) - 2, 1); |
| __sanitizer_unaligned_store64(x+3, y); |
| EXPECT_POISONED(x[0]); |
| EXPECT_POISONED(x[1]); |
| EXPECT_POISONED(x[2]); |
| EXPECT_POISONED(x[3]); |
| EXPECT_POISONED(x[4]); |
| EXPECT_POISONED(x[5]); |
| EXPECT_NOT_POISONED(x[6]); |
| EXPECT_NOT_POISONED(x[7]); |
| EXPECT_NOT_POISONED(x[8]); |
| EXPECT_POISONED(x[9]); |
| EXPECT_NOT_POISONED(x[10]); |
| EXPECT_POISONED(x[11]); |
| } |
| |
| TEST(MemorySanitizerDr, StoreInDSOTest) { |
| if (!__msan_has_dynamic_component()) return; |
| char* s = new char[10]; |
| dso_memfill(s, 9); |
| EXPECT_NOT_POISONED(s[5]); |
| EXPECT_POISONED(s[9]); |
| } |
| |
| int return_poisoned_int() { |
| return ReturnPoisoned<U8>(); |
| } |
| |
| TEST(MemorySanitizerDr, ReturnFromDSOTest) { |
| if (!__msan_has_dynamic_component()) return; |
| EXPECT_NOT_POISONED(dso_callfn(return_poisoned_int)); |
| } |
| |
| NOINLINE int TrashParamTLS(long long x, long long y, long long z) { //NOLINT |
| EXPECT_POISONED(x); |
| EXPECT_POISONED(y); |
| EXPECT_POISONED(z); |
| return 0; |
| } |
| |
| static int CheckParamTLS(long long x, long long y, long long z) { //NOLINT |
| EXPECT_NOT_POISONED(x); |
| EXPECT_NOT_POISONED(y); |
| EXPECT_NOT_POISONED(z); |
| return 0; |
| } |
| |
| TEST(MemorySanitizerDr, CallFromDSOTest) { |
| if (!__msan_has_dynamic_component()) return; |
| S8* x = GetPoisoned<S8>(); |
| S8* y = GetPoisoned<S8>(); |
| S8* z = GetPoisoned<S8>(); |
| EXPECT_NOT_POISONED(TrashParamTLS(*x, *y, *z)); |
| EXPECT_NOT_POISONED(dso_callfn1(CheckParamTLS)); |
| } |
| |
| static void StackStoreInDSOFn(int* x, int* y) { |
| EXPECT_NOT_POISONED(*x); |
| EXPECT_NOT_POISONED(*y); |
| } |
| |
| TEST(MemorySanitizerDr, StackStoreInDSOTest) { |
| if (!__msan_has_dynamic_component()) return; |
| dso_stack_store(StackStoreInDSOFn, 1); |
| } |
| |
| TEST(MemorySanitizerOrigins, SetGet) { |
| EXPECT_EQ(TrackingOrigins(), __msan_get_track_origins()); |
| if (!TrackingOrigins()) return; |
| int x; |
| __msan_set_origin(&x, sizeof(x), 1234); |
| EXPECT_EQ(1234, __msan_get_origin(&x)); |
| __msan_set_origin(&x, sizeof(x), 5678); |
| EXPECT_EQ(5678, __msan_get_origin(&x)); |
| __msan_set_origin(&x, sizeof(x), 0); |
| EXPECT_EQ(0, __msan_get_origin(&x)); |
| } |
| |
| namespace { |
| struct S { |
| U4 dummy; |
| U2 a; |
| U2 b; |
| }; |
| |
| // http://code.google.com/p/memory-sanitizer/issues/detail?id=6 |
| TEST(MemorySanitizerOrigins, DISABLED_InitializedStoreDoesNotChangeOrigin) { |
| if (!TrackingOrigins()) return; |
| |
| S s; |
| U4 origin = rand(); // NOLINT |
| s.a = *GetPoisonedO<U2>(0, origin); |
| EXPECT_EQ(origin, __msan_get_origin(&s.a)); |
| EXPECT_EQ(origin, __msan_get_origin(&s.b)); |
| |
| s.b = 42; |
| EXPECT_EQ(origin, __msan_get_origin(&s.a)); |
| EXPECT_EQ(origin, __msan_get_origin(&s.b)); |
| } |
| } // namespace |
| |
| template<class T, class BinaryOp> |
| INLINE |
| void BinaryOpOriginTest(BinaryOp op) { |
| U4 ox = rand(); //NOLINT |
| U4 oy = rand(); //NOLINT |
| T *x = GetPoisonedO<T>(0, ox, 0); |
| T *y = GetPoisonedO<T>(1, oy, 0); |
| T *z = GetPoisonedO<T>(2, 0, 0); |
| |
| *z = op(*x, *y); |
| U4 origin = __msan_get_origin(z); |
| EXPECT_POISONED_O(*z, origin); |
| EXPECT_EQ(true, origin == ox || origin == oy); |
| |
| // y is poisoned, x is not. |
| *x = 10101; |
| *y = *GetPoisonedO<T>(1, oy); |
| break_optimization(x); |
| __msan_set_origin(z, sizeof(*z), 0); |
| *z = op(*x, *y); |
| EXPECT_POISONED_O(*z, oy); |
| EXPECT_EQ(__msan_get_origin(z), oy); |
| |
| // x is poisoned, y is not. |
| *x = *GetPoisonedO<T>(0, ox); |
| *y = 10101010; |
| break_optimization(y); |
| __msan_set_origin(z, sizeof(*z), 0); |
| *z = op(*x, *y); |
| EXPECT_POISONED_O(*z, ox); |
| EXPECT_EQ(__msan_get_origin(z), ox); |
| } |
| |
| template<class T> INLINE T XOR(const T &a, const T&b) { return a ^ b; } |
| template<class T> INLINE T ADD(const T &a, const T&b) { return a + b; } |
| template<class T> INLINE T SUB(const T &a, const T&b) { return a - b; } |
| template<class T> INLINE T MUL(const T &a, const T&b) { return a * b; } |
| template<class T> INLINE T AND(const T &a, const T&b) { return a & b; } |
| template<class T> INLINE T OR (const T &a, const T&b) { return a | b; } |
| |
| TEST(MemorySanitizerOrigins, BinaryOp) { |
| if (!TrackingOrigins()) return; |
| BinaryOpOriginTest<S8>(XOR<S8>); |
| BinaryOpOriginTest<U8>(ADD<U8>); |
| BinaryOpOriginTest<S4>(SUB<S4>); |
| BinaryOpOriginTest<S4>(MUL<S4>); |
| BinaryOpOriginTest<U4>(OR<U4>); |
| BinaryOpOriginTest<U4>(AND<U4>); |
| BinaryOpOriginTest<double>(ADD<U4>); |
| BinaryOpOriginTest<float>(ADD<S4>); |
| BinaryOpOriginTest<double>(ADD<double>); |
| BinaryOpOriginTest<float>(ADD<double>); |
| } |
| |
| TEST(MemorySanitizerOrigins, Unary) { |
| if (!TrackingOrigins()) return; |
| EXPECT_POISONED_O(*GetPoisonedO<S8>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<S8>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<S8>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<S8>(0, __LINE__), __LINE__); |
| |
| EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); |
| |
| EXPECT_POISONED_O(*GetPoisonedO<U4>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<U4>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<U4>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<U4>(0, __LINE__), __LINE__); |
| |
| EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); |
| |
| EXPECT_POISONED_O((void*)*GetPoisonedO<S8>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O((U8)*GetPoisonedO<void*>(0, __LINE__), __LINE__); |
| } |
| |
| TEST(MemorySanitizerOrigins, EQ) { |
| if (!TrackingOrigins()) return; |
| EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__) <= 11, __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__) == 11, __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<float>(0, __LINE__) == 1.1, __LINE__); |
| } |
| |
| TEST(MemorySanitizerOrigins, DIV) { |
| if (!TrackingOrigins()) return; |
| EXPECT_POISONED_O(*GetPoisonedO<U8>(0, __LINE__) / 100, __LINE__); |
| unsigned o = __LINE__; |
| EXPECT_UMR_O(volatile unsigned y = 100 / *GetPoisonedO<S4>(0, o, 1), o); |
| } |
| |
| TEST(MemorySanitizerOrigins, SHIFT) { |
| if (!TrackingOrigins()) return; |
| EXPECT_POISONED_O(*GetPoisonedO<U8>(0, __LINE__) >> 10, __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<S8>(0, __LINE__) >> 10, __LINE__); |
| EXPECT_POISONED_O(*GetPoisonedO<S8>(0, __LINE__) << 10, __LINE__); |
| EXPECT_POISONED_O(10U << *GetPoisonedO<U8>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(-10 >> *GetPoisonedO<S8>(0, __LINE__), __LINE__); |
| EXPECT_POISONED_O(-10 << *GetPoisonedO<S8>(0, __LINE__), __LINE__); |
| } |
| |
| template<class T, int N> |
| void MemCpyTest() { |
| int ox = __LINE__; |
| T *x = new T[N]; |
| T *y = new T[N]; |
| T *z = new T[N]; |
| T *q = new T[N]; |
| __msan_poison(x, N * sizeof(T)); |
| __msan_set_origin(x, N * sizeof(T), ox); |
| __msan_set_origin(y, N * sizeof(T), 777777); |
| __msan_set_origin(z, N * sizeof(T), 888888); |
| EXPECT_NOT_POISONED(x); |
| memcpy(y, x, N * sizeof(T)); |
| EXPECT_POISONED_O(y[0], ox); |
| EXPECT_POISONED_O(y[N/2], ox); |
| EXPECT_POISONED_O(y[N-1], ox); |
| EXPECT_NOT_POISONED(x); |
| void *res = mempcpy(q, x, N * sizeof(T)); |
| ASSERT_EQ(q + N, res); |
| EXPECT_POISONED_O(q[0], ox); |
| EXPECT_POISONED_O(q[N/2], ox); |
| EXPECT_POISONED_O(q[N-1], ox); |
| EXPECT_NOT_POISONED(x); |
| memmove(z, x, N * sizeof(T)); |
| EXPECT_POISONED_O(z[0], ox); |
| EXPECT_POISONED_O(z[N/2], ox); |
| EXPECT_POISONED_O(z[N-1], ox); |
| } |
| |
| TEST(MemorySanitizerOrigins, LargeMemCpy) { |
| if (!TrackingOrigins()) return; |
| MemCpyTest<U1, 10000>(); |
| MemCpyTest<U8, 10000>(); |
| } |
| |
| TEST(MemorySanitizerOrigins, SmallMemCpy) { |
| if (!TrackingOrigins()) return; |
| MemCpyTest<U8, 1>(); |
| MemCpyTest<U8, 2>(); |
| MemCpyTest<U8, 3>(); |
| } |
| |
| TEST(MemorySanitizerOrigins, Select) { |
| if (!TrackingOrigins()) return; |
| EXPECT_NOT_POISONED(g_one ? 1 : *GetPoisonedO<S4>(0, __LINE__)); |
| EXPECT_POISONED_O(*GetPoisonedO<S4>(0, __LINE__), __LINE__); |
| S4 x; |
| break_optimization(&x); |
| x = g_1 ? *GetPoisonedO<S4>(0, __LINE__) : 0; |
| |
| EXPECT_POISONED_O(g_1 ? *GetPoisonedO<S4>(0, __LINE__) : 1, __LINE__); |
| EXPECT_POISONED_O(g_0 ? 1 : *GetPoisonedO<S4>(0, __LINE__), __LINE__); |
| } |
| |
| extern "C" |
| NOINLINE char AllocaTO() { |
| int ar[100]; |
| break_optimization(ar); |
| return ar[10]; |
| // fprintf(stderr, "Descr: %s\n", |
| // __msan_get_origin_descr_if_stack(__msan_get_origin_tls())); |
| } |
| |
| TEST(MemorySanitizerOrigins, Alloca) { |
| if (!TrackingOrigins()) return; |
| EXPECT_POISONED_S(AllocaTO(), "ar@AllocaTO"); |
| EXPECT_POISONED_S(AllocaTO(), "ar@AllocaTO"); |
| EXPECT_POISONED_S(AllocaTO(), "ar@AllocaTO"); |
| EXPECT_POISONED_S(AllocaTO(), "ar@AllocaTO"); |
| } |
| |
| // FIXME: replace with a lit-like test. |
| TEST(MemorySanitizerOrigins, DISABLED_AllocaDeath) { |
| if (!TrackingOrigins()) return; |
| EXPECT_DEATH(AllocaTO(), "ORIGIN: stack allocation: ar@AllocaTO"); |
| } |
| |
| NOINLINE int RetvalOriginTest(U4 origin) { |
| int *a = new int; |
| break_optimization(a); |
| __msan_set_origin(a, sizeof(*a), origin); |
| int res = *a; |
| delete a; |
| return res; |
| } |
| |
| TEST(MemorySanitizerOrigins, Retval) { |
| if (!TrackingOrigins()) return; |
| EXPECT_POISONED_O(RetvalOriginTest(__LINE__), __LINE__); |
| } |
| |
| NOINLINE void ParamOriginTest(int param, U4 origin) { |
| EXPECT_POISONED_O(param, origin); |
| } |
| |
| TEST(MemorySanitizerOrigins, Param) { |
| if (!TrackingOrigins()) return; |
| int *a = new int; |
| U4 origin = __LINE__; |
| break_optimization(a); |
| __msan_set_origin(a, sizeof(*a), origin); |
| ParamOriginTest(*a, origin); |
| delete a; |
| } |
| |
| TEST(MemorySanitizerOrigins, Invoke) { |
| if (!TrackingOrigins()) return; |
| StructWithDtor s; // Will cause the calls to become invokes. |
| EXPECT_POISONED_O(RetvalOriginTest(__LINE__), __LINE__); |
| } |
| |
| TEST(MemorySanitizerOrigins, strlen) { |
| S8 alignment; |
| break_optimization(&alignment); |
| char x[4] = {'a', 'b', 0, 0}; |
| __msan_poison(&x[2], 1); |
| U4 origin = __LINE__; |
| __msan_set_origin(x, sizeof(x), origin); |
| EXPECT_UMR_O(volatile unsigned y = strlen(x), origin); |
| } |
| |
| TEST(MemorySanitizerOrigins, wcslen) { |
| wchar_t w[3] = {'a', 'b', 0}; |
| U4 origin = __LINE__; |
| __msan_set_origin(w, sizeof(w), origin); |
| __msan_poison(&w[2], sizeof(wchar_t)); |
| EXPECT_UMR_O(volatile unsigned y = wcslen(w), origin); |
| } |
| |
| #if MSAN_HAS_M128 |
| TEST(MemorySanitizerOrigins, StoreIntrinsic) { |
| __m128 x, y; |
| U4 origin = __LINE__; |
| __msan_set_origin(&x, sizeof(x), origin); |
| __msan_poison(&x, sizeof(x)); |
| __builtin_ia32_storeups((float*)&y, x); |
| EXPECT_POISONED_O(y, origin); |
| } |
| #endif |
| |
| NOINLINE void RecursiveMalloc(int depth) { |
| static int count; |
| count++; |
| if ((count % (1024 * 1024)) == 0) |
| printf("RecursiveMalloc: %d\n", count); |
| int *x1 = new int; |
| int *x2 = new int; |
| break_optimization(x1); |
| break_optimization(x2); |
| if (depth > 0) { |
| RecursiveMalloc(depth-1); |
| RecursiveMalloc(depth-1); |
| } |
| delete x1; |
| delete x2; |
| } |
| |
| TEST(MemorySanitizer, CallocOverflow) { |
| size_t kArraySize = 4096; |
| volatile size_t kMaxSizeT = std::numeric_limits<size_t>::max(); |
| volatile size_t kArraySize2 = kMaxSizeT / kArraySize + 10; |
| void *p = calloc(kArraySize, kArraySize2); // Should return 0. |
| EXPECT_EQ(0L, Ident(p)); |
| } |
| |
| TEST(MemorySanitizerStress, DISABLED_MallocStackTrace) { |
| RecursiveMalloc(22); |
| } |