asan_test.cc revision 366984e3aa286f7b4fb45f5c9e703f2768c407ed
1b0ddf227b25388ad836e560c00f0aec84026b0e5Alexey Samsonov//===-- asan_test.cc ------------------------------------------------------===// 21e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 31e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// The LLVM Compiler Infrastructure 41e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 51e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// This file is distributed under the University of Illinois Open Source 61e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// License. See LICENSE.TXT for details. 71e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 81e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany//===----------------------------------------------------------------------===// 91e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// This file is a part of AddressSanitizer, an address sanity checker. 111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany//===----------------------------------------------------------------------===// 131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include "asan_test_utils.h" 141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 15938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *malloc_fff(size_t size) { 161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = malloc/**/(size); break_optimization(0); return res;} 17938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *malloc_eee(size_t size) { 181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = malloc_fff(size); break_optimization(0); return res;} 19938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *malloc_ddd(size_t size) { 201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = malloc_eee(size); break_optimization(0); return res;} 21938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *malloc_ccc(size_t size) { 221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = malloc_ddd(size); break_optimization(0); return res;} 23938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *malloc_bbb(size_t size) { 241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = malloc_ccc(size); break_optimization(0); return res;} 25938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *malloc_aaa(size_t size) { 261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = malloc_bbb(size); break_optimization(0); return res;} 271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifndef __APPLE__ 29938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *memalign_fff(size_t alignment, size_t size) { 301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = memalign/**/(alignment, size); break_optimization(0); return res;} 31938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *memalign_eee(size_t alignment, size_t size) { 321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = memalign_fff(alignment, size); break_optimization(0); return res;} 33938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *memalign_ddd(size_t alignment, size_t size) { 341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = memalign_eee(alignment, size); break_optimization(0); return res;} 35938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *memalign_ccc(size_t alignment, size_t size) { 361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = memalign_ddd(alignment, size); break_optimization(0); return res;} 37938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *memalign_bbb(size_t alignment, size_t size) { 381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = memalign_ccc(alignment, size); break_optimization(0); return res;} 39938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void *memalign_aaa(size_t alignment, size_t size) { 401e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *res = memalign_bbb(alignment, size); break_optimization(0); return res;} 411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif // __APPLE__ 421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 44938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void free_ccc(void *p) { free(p); break_optimization(0);} 45938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void free_bbb(void *p) { free_ccc(p); break_optimization(0);} 46938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void free_aaa(void *p) { free_bbb(p); break_optimization(0);} 471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 492dcf44991a8ec1ca7c8051eb27c5ff158530bdc3Timur Iskhodzhanovtemplate<typename T> 50938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void uaf_test(int size, int off) { 511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *p = (char *)malloc_aaa(size); 521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free_aaa(p); 531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 1; i < 100; i++) 541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free_aaa(malloc_aaa(i)); 551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany fprintf(stderr, "writing %ld byte(s) at %p with offset %d\n", 561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany (long)sizeof(T), p, off); 571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany asan_write((T*)(p + off)); 581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6013ebae606b526399771e9cca1d6a9d24458ad0f1Kostya SerebryanyTEST(AddressSanitizer, HasFeatureAddressSanitizerTest) { 6113ebae606b526399771e9cca1d6a9d24458ad0f1Kostya Serebryany#if defined(__has_feature) && __has_feature(address_sanitizer) 6213ebae606b526399771e9cca1d6a9d24458ad0f1Kostya Serebryany bool asan = 1; 63badab16503e025326a46a45da8faa6fd20e5fc3dKostya Serebryany#elif defined(__SANITIZE_ADDRESS__) 64badab16503e025326a46a45da8faa6fd20e5fc3dKostya Serebryany bool asan = 1; 6513ebae606b526399771e9cca1d6a9d24458ad0f1Kostya Serebryany#else 6613ebae606b526399771e9cca1d6a9d24458ad0f1Kostya Serebryany bool asan = 0; 6713ebae606b526399771e9cca1d6a9d24458ad0f1Kostya Serebryany#endif 6813ebae606b526399771e9cca1d6a9d24458ad0f1Kostya Serebryany EXPECT_EQ(true, asan); 691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 711e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, SimpleDeathTest) { 721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(exit(1), ""); 731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 751e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, VariousMallocsTest) { 761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *a = (int*)malloc(100 * sizeof(int)); 771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany a[50] = 0; 781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(a); 791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *r = (int*)malloc(10); 811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany r = (int*)realloc(r, 2000 * sizeof(int)); 821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany r[1000] = 0; 831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(r); 841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *b = new int[100]; 861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany b[50] = 0; 871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete [] b; 881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *c = new int; 901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *c = 0; 911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete c; 921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 93e0e9eea99d7a81a15c4bb15ff2e5ebd92b50817bEvgeniy Stepanov#if !defined(__APPLE__) && !defined(ANDROID) && !defined(__ANDROID__) 941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *pm; 951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int pm_res = posix_memalign((void**)&pm, kPageSize, kPageSize); 961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, pm_res); 971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(pm); 987274eafceb832e1088f30b71652992787ba8c456Evgeniy Stepanov#endif 991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1004dd8ba8238b1b698953628affe6e5b2edf3b3e3fAlexey Samsonov#if !defined(__APPLE__) 1011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *ma = (int*)memalign(kPageSize, kPageSize); 10276e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov EXPECT_EQ(0U, (uintptr_t)ma % kPageSize); 1031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ma[123] = 0; 1041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(ma); 1051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif // __APPLE__ 1061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1081e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, CallocTest) { 1091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *a = (int*)calloc(100, sizeof(int)); 1101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, a[10]); 1111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(a); 1121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1141e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, VallocTest) { 1151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *a = valloc(100); 11676e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov EXPECT_EQ(0U, (uintptr_t)a % kPageSize); 1171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(a); 1181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifndef __APPLE__ 1211e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, PvallocTest) { 1221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *a = (char*)pvalloc(kPageSize + 100); 12376e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov EXPECT_EQ(0U, (uintptr_t)a % kPageSize); 1241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany a[kPageSize + 101] = 1; // we should not report an error here. 1251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(a); 1261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany a = (char*)pvalloc(0); // pvalloc(0) should allocate at least one page. 12876e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov EXPECT_EQ(0U, (uintptr_t)a % kPageSize); 1291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany a[101] = 1; // we should not report an error here. 1301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(a); 1311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif // __APPLE__ 1331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *TSDWorker(void *test_key) { 1351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (test_key) { 1361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_setspecific(*(pthread_key_t*)test_key, (void*)0xfeedface); 1371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 1381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return NULL; 1391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1401e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid TSDDestructor(void *tsd) { 1421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Spawning a thread will check that the current thread id is not -1. 1431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t th; 1442697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&th, NULL, TSDWorker, NULL); 1452697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(th, NULL); 1461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// This tests triggers the thread-specific data destruction fiasco which occurs 1491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// if we don't manage the TSD destructors ourselves. We create a new pthread 1501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// key with a non-NULL destructor which is likely to be put after the destructor 1511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// of AsanThread in the list of destructors. 1521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// In this case the TSD for AsanThread will be destroyed before TSDDestructor 1531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// is called for the child thread, and a CHECK will fail when we call 1541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// pthread_create() to spawn the grandchild. 1551e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_TSDTest) { 1561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t th; 1571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_key_t test_key; 1581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_key_create(&test_key, TSDDestructor); 1592697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&th, NULL, TSDWorker, &test_key); 1602697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(th, NULL); 1611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_key_delete(test_key); 1621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1641e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, UAF_char) { 165ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany const char *uaf_string = "AddressSanitizer:.*heap-use-after-free"; 1661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(uaf_test<U1>(1, 0), uaf_string); 1671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(uaf_test<U1>(10, 0), uaf_string); 1681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(uaf_test<U1>(10, 10), uaf_string); 1691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(uaf_test<U1>(kLargeMalloc, 0), uaf_string); 1701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(uaf_test<U1>(kLargeMalloc, kLargeMalloc / 2), uaf_string); 1711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 173366984e3aa286f7b4fb45f5c9e703f2768c407edKostya SerebryanyTEST(AddressSanitizer, UAF_long_double) { 174366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany long double *p = Ident(new long double[10]); 175366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany EXPECT_DEATH(Ident(p)[12] = 0, "WRITE of size 10"); 176366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany EXPECT_DEATH(Ident(p)[0] = Ident(p)[12], "READ of size 10"); 177366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany delete [] Ident(p); 178366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany} 179366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany 180366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryanystruct Packed5 { 181366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany int x; 182366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany char c; 183366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany} __attribute__((packed)); 184366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany 185366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany 186366984e3aa286f7b4fb45f5c9e703f2768c407edKostya SerebryanyTEST(AddressSanitizer, UAF_Packed5) { 187366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany Packed5 *p = Ident(new Packed5[2]); 188366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany EXPECT_DEATH(p[0] = p[3], "READ of size 5"); 189366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany EXPECT_DEATH(p[3] = p[0], "WRITE of size 5"); 190366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany delete [] Ident(p); 191366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany} 192366984e3aa286f7b4fb45f5c9e703f2768c407edKostya Serebryany 1931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#if ASAN_HAS_BLACKLIST 1941e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, IgnoreTest) { 1951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *x = Ident(new int); 1961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete Ident(x); 1971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *x = 0; 1981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif // ASAN_HAS_BLACKLIST 2001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystruct StructWithBitField { 2021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int bf1:1; 2031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int bf2:1; 2041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int bf3:1; 2051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int bf4:29; 2061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany}; 2071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2081e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, BitFieldPositiveTest) { 2091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany StructWithBitField *x = new StructWithBitField; 2101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete Ident(x); 2111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(x->bf1 = 0, "use-after-free"); 2121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(x->bf2 = 0, "use-after-free"); 2131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(x->bf3 = 0, "use-after-free"); 2141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(x->bf4 = 0, "use-after-free"); 21576e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov} 2161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystruct StructWithBitFields_8_24 { 2181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a:8; 2191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int b:24; 2201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany}; 2211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2221e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, BitFieldNegativeTest) { 2231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany StructWithBitFields_8_24 *x = Ident(new StructWithBitFields_8_24); 2241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x->a = 0; 2251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x->b = 0; 2261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete Ident(x); 2271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 2281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2291e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, OutOfMemoryTest) { 2305af39e50366f1aacbebc284f572f08ad1ad07357Kostya Serebryany size_t size = SANITIZER_WORDSIZE == 64 ? (size_t)(1ULL << 48) : (0xf0000000); 2311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, realloc(0, size)); 2321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, realloc(0, ~Ident(0))); 2331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, malloc(size)); 2341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, malloc(~Ident(0))); 2351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, calloc(1, size)); 2361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, calloc(1, ~Ident(0))); 2371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 2381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#if ASAN_NEEDS_SEGV 24058b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenkonamespace { 24158b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko 242ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryanyconst char kUnknownCrash[] = "AddressSanitizer: SEGV on unknown address"; 24358b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenkoconst char kOverriddenHandler[] = "ASan signal handler has been overridden\n"; 24458b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko 2451e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, WildAddressTest) { 2461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *c = (char*)0x123; 24758b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko EXPECT_DEATH(*c = 0, kUnknownCrash); 24858b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko} 24958b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko 25058b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenkovoid my_sigaction_sighandler(int, siginfo_t*, void*) { 25158b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko fprintf(stderr, kOverriddenHandler); 25258b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko exit(1); 25358b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko} 25458b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko 255b0ddf227b25388ad836e560c00f0aec84026b0e5Alexey Samsonovvoid my_signal_sighandler(int signum) { 25658b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko fprintf(stderr, kOverriddenHandler); 25758b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko exit(1); 25858b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko} 25958b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko 26058b017bb286a8f4413a9348d2c87c52de38cff6dAlexander PotapenkoTEST(AddressSanitizer, SignalTest) { 26158b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko struct sigaction sigact; 26258b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko memset(&sigact, 0, sizeof(sigact)); 26358b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko sigact.sa_sigaction = my_sigaction_sighandler; 26458b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko sigact.sa_flags = SA_SIGINFO; 26558b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko // ASan should silently ignore sigaction()... 26658b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko EXPECT_EQ(0, sigaction(SIGSEGV, &sigact, 0)); 26758b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko#ifdef __APPLE__ 26858b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko EXPECT_EQ(0, sigaction(SIGBUS, &sigact, 0)); 26958b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko#endif 27058b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko char *c = (char*)0x123; 27158b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko EXPECT_DEATH(*c = 0, kUnknownCrash); 27258b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko // ... and signal(). 27358b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko EXPECT_EQ(0, signal(SIGSEGV, my_signal_sighandler)); 27458b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko EXPECT_DEATH(*c = 0, kUnknownCrash); 27558b017bb286a8f4413a9348d2c87c52de38cff6dAlexander Potapenko} 276b0ddf227b25388ad836e560c00f0aec84026b0e5Alexey Samsonov} // namespace 2771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 2781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 2791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic void MallocStress(size_t n) { 28048ddbef1d051875b2d0b204e8d78300b58d80a85Evgeniy Stepanov uint32_t seed = my_rand(); 2811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t iter = 0; iter < 10; iter++) { 2821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany vector<void *> vec; 2831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t i = 0; i < n; i++) { 2841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if ((i % 3) == 0) { 2851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (vec.empty()) continue; 28648ddbef1d051875b2d0b204e8d78300b58d80a85Evgeniy Stepanov size_t idx = my_rand_r(&seed) % vec.size(); 2871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany void *ptr = vec[idx]; 2881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany vec[idx] = vec.back(); 2891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany vec.pop_back(); 2901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free_aaa(ptr); 2911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } else { 29248ddbef1d051875b2d0b204e8d78300b58d80a85Evgeniy Stepanov size_t size = my_rand_r(&seed) % 1000 + 1; 2931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifndef __APPLE__ 29448ddbef1d051875b2d0b204e8d78300b58d80a85Evgeniy Stepanov size_t alignment = 1 << (my_rand_r(&seed) % 7 + 3); 2951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *ptr = (char*)memalign_aaa(alignment, size); 2961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#else 2971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *ptr = (char*) malloc_aaa(size); 2981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 2991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany vec.push_back(ptr); 3001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ptr[0] = 0; 3011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ptr[size-1] = 0; 3021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ptr[size/2] = 0; 3031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t i = 0; i < vec.size(); i++) 3061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free_aaa(vec[i]); 3071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 3091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3101e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, MallocStressTest) { 3118ae44ac678644265ba82a1b5696a402c9301a85cEvgeniy Stepanov MallocStress((ASAN_LOW_MEMORY) ? 20000 : 200000); 3121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 3131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic void TestLargeMalloc(size_t size) { 3151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char buff[1024]; 3161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany sprintf(buff, "is located 1 bytes to the left of %lu-byte", (long)size); 3171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident((char*)malloc(size))[-1] = 0, buff); 3181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 3191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3201e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, LargeMallocTest) { 3211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 113; i < (1 << 28); i = i * 2 + 13) { 3221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TestLargeMalloc(i); 3231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 3251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 326788e1d704436065beb514fdde86070f61d0394edEvgeniy Stepanov#if ASAN_LOW_MEMORY != 1 3271e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, HugeMallocTest) { 3281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifdef __APPLE__ 3291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // It was empirically found out that 1215 megabytes is the maximum amount of 330e4d141dbbaf5185f332a185c22308340657d243eKostya Serebryany // memory available to the process under AddressSanitizer on 32-bit Mac 10.6. 331e4d141dbbaf5185f332a185c22308340657d243eKostya Serebryany // 32-bit Mac 10.7 gives even less (< 1G). 3321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // (the libSystem malloc() allows allocating up to 2300 megabytes without 3331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // ASan). 3345af39e50366f1aacbebc284f572f08ad1ad07357Kostya Serebryany size_t n_megs = SANITIZER_WORDSIZE == 32 ? 500 : 4100; 3351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#else 3365af39e50366f1aacbebc284f572f08ad1ad07357Kostya Serebryany size_t n_megs = SANITIZER_WORDSIZE == 32 ? 2600 : 4100; 3371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 3381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TestLargeMalloc(n_megs << 20); 3391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 340788e1d704436065beb514fdde86070f61d0394edEvgeniy Stepanov#endif 3411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 342c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany#ifndef __APPLE__ 343c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryanyvoid MemalignRun(size_t align, size_t size, int idx) { 344c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany char *p = (char *)memalign(align, size); 345c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany Ident(p)[idx] = 0; 346c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany free(p); 347c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany} 348c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany 349c311105fd64219bb96b6467c3707ebda355be87bKostya SerebryanyTEST(AddressSanitizer, memalign) { 350c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany for (int align = 16; align <= (1 << 23); align *= 2) { 351c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany size_t size = align * 5; 352c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany EXPECT_DEATH(MemalignRun(align, size, -1), 353c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany "is located 1 bytes to the left"); 354c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany EXPECT_DEATH(MemalignRun(align, size, size + 1), 355c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany "is located 1 bytes to the right"); 356c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany } 357c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany} 358c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany#endif 359c311105fd64219bb96b6467c3707ebda355be87bKostya Serebryany 3601e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ThreadedMallocStressTest) { 3611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const int kNumThreads = 4; 3628ae44ac678644265ba82a1b5696a402c9301a85cEvgeniy Stepanov const int kNumIterations = (ASAN_LOW_MEMORY) ? 10000 : 100000; 3631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t t[kNumThreads]; 3641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < kNumThreads; i++) { 3652697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t[i], 0, (void* (*)(void *x))MallocStress, 3668ae44ac678644265ba82a1b5696a402c9301a85cEvgeniy Stepanov (void*)kNumIterations); 3671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < kNumThreads; i++) { 3692697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t[i], 0); 3701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 3721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *ManyThreadsWorker(void *a) { 3741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int iter = 0; iter < 100; iter++) { 3751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t size = 100; size < 2000; size *= 2) { 3761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(Ident(malloc(size))); 3771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 3801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 3811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3821e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ManyThreadsTest) { 3832697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany const size_t kNumThreads = 3842697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany (SANITIZER_WORDSIZE == 32 || ASAN_AVOID_EXPENSIVE_TESTS) ? 30 : 1000; 3851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t t[kNumThreads]; 3861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t i = 0; i < kNumThreads; i++) { 3872697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t[i], 0, ManyThreadsWorker, (void*)i); 3881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t i = 0; i < kNumThreads; i++) { 3902697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t[i], 0); 3911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 3921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 3931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 3941e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ReallocTest) { 3951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const int kMinElem = 5; 3961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *ptr = (int*)malloc(sizeof(int) * kMinElem); 3971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ptr[3] = 3; 3981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < 10000; i++) { 3991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ptr = (int*)realloc(ptr, 40048ddbef1d051875b2d0b204e8d78300b58d80a85Evgeniy Stepanov (my_rand() % 1000 + kMinElem) * sizeof(int)); 4011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(3, ptr[3]); 4021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 403a3ab1a7da70a5ef111257ba8887920c1fdcd7be5Alexey Samsonov free(ptr); 404a3ab1a7da70a5ef111257ba8887920c1fdcd7be5Alexey Samsonov // Realloc pointer returned by malloc(0). 405a3ab1a7da70a5ef111257ba8887920c1fdcd7be5Alexey Samsonov int *ptr2 = Ident((int*)malloc(0)); 406a3ab1a7da70a5ef111257ba8887920c1fdcd7be5Alexey Samsonov ptr2 = Ident((int*)realloc(ptr2, sizeof(*ptr2))); 407a3ab1a7da70a5ef111257ba8887920c1fdcd7be5Alexey Samsonov *ptr2 = 42; 408a3ab1a7da70a5ef111257ba8887920c1fdcd7be5Alexey Samsonov EXPECT_EQ(42, *ptr2); 409a3ab1a7da70a5ef111257ba8887920c1fdcd7be5Alexey Samsonov free(ptr2); 4101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 4111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 412d91699339fd7e022aef0eaa8f401af0f8942068bAlexey SamsonovTEST(AddressSanitizer, ZeroSizeMallocTest) { 413d91699339fd7e022aef0eaa8f401af0f8942068bAlexey Samsonov // Test that malloc(0) and similar functions don't return NULL. 414d91699339fd7e022aef0eaa8f401af0f8942068bAlexey Samsonov void *ptr = Ident(malloc(0)); 415a180078ee0120c049f9fb495f930053f80f105aaAlexey Samsonov EXPECT_TRUE(NULL != ptr); 416d91699339fd7e022aef0eaa8f401af0f8942068bAlexey Samsonov free(ptr); 417d91699339fd7e022aef0eaa8f401af0f8942068bAlexey Samsonov#if !defined(__APPLE__) && !defined(ANDROID) && !defined(__ANDROID__) 418d91699339fd7e022aef0eaa8f401af0f8942068bAlexey Samsonov int pm_res = posix_memalign(&ptr, 1<<20, 0); 419d91699339fd7e022aef0eaa8f401af0f8942068bAlexey Samsonov EXPECT_EQ(0, pm_res); 420a180078ee0120c049f9fb495f930053f80f105aaAlexey Samsonov EXPECT_TRUE(NULL != ptr); 421d91699339fd7e022aef0eaa8f401af0f8942068bAlexey Samsonov free(ptr); 422d91699339fd7e022aef0eaa8f401af0f8942068bAlexey Samsonov#endif 423a180078ee0120c049f9fb495f930053f80f105aaAlexey Samsonov int *int_ptr = new int[0]; 424d91699339fd7e022aef0eaa8f401af0f8942068bAlexey Samsonov int *int_ptr2 = new int[0]; 425a180078ee0120c049f9fb495f930053f80f105aaAlexey Samsonov EXPECT_TRUE(NULL != int_ptr); 426a180078ee0120c049f9fb495f930053f80f105aaAlexey Samsonov EXPECT_TRUE(NULL != int_ptr2); 427a180078ee0120c049f9fb495f930053f80f105aaAlexey Samsonov EXPECT_NE(int_ptr, int_ptr2); 428d91699339fd7e022aef0eaa8f401af0f8942068bAlexey Samsonov delete[] int_ptr; 429d91699339fd7e022aef0eaa8f401af0f8942068bAlexey Samsonov delete[] int_ptr2; 430d91699339fd7e022aef0eaa8f401af0f8942068bAlexey Samsonov} 431d91699339fd7e022aef0eaa8f401af0f8942068bAlexey Samsonov 4324fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov#ifndef __APPLE__ 4334fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonovstatic const char *kMallocUsableSizeErrorMsg = 434ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany "AddressSanitizer: attempting to call malloc_usable_size()"; 4354fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov 4364fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey SamsonovTEST(AddressSanitizer, MallocUsableSizeTest) { 4374fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov const size_t kArraySize = 100; 4384fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov char *array = Ident((char*)malloc(kArraySize)); 4394fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov int *int_ptr = Ident(new int); 44076e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov EXPECT_EQ(0U, malloc_usable_size(NULL)); 4414fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov EXPECT_EQ(kArraySize, malloc_usable_size(array)); 4424fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov EXPECT_EQ(sizeof(int), malloc_usable_size(int_ptr)); 4434fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov EXPECT_DEATH(malloc_usable_size((void*)0x123), kMallocUsableSizeErrorMsg); 4444fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov EXPECT_DEATH(malloc_usable_size(array + kArraySize / 2), 4454fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov kMallocUsableSizeErrorMsg); 4464fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov free(array); 4474fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov EXPECT_DEATH(malloc_usable_size(array), kMallocUsableSizeErrorMsg); 4484fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov} 4494fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov#endif 4504fd95f141f78906570c15a8a3b4cf0a7b50a201dAlexey Samsonov 4511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid WrongFree() { 4521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *x = (int*)malloc(100 * sizeof(int)); 4531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // Use the allocated memory, otherwise Clang will optimize it out. 4541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(x); 4551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(x + 1); 4561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 4571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 4581e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, WrongFreeTest) { 459c16201337a4bb974093ff75aa45682739a331d05Kostya Serebryany EXPECT_DEATH(WrongFree(), 460ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany "ERROR: AddressSanitizer: attempting free.*not malloc"); 4611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 4621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 4631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid DoubleFree() { 4641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *x = (int*)malloc(100 * sizeof(int)); 4651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany fprintf(stderr, "DoubleFree: x=%p\n", x); 4661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(x); 4671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(x); 4681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany fprintf(stderr, "should have failed in the second free(%p)\n", x); 4691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany abort(); 4701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 4711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 4721e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DoubleFreeTest) { 47327f4932a8a0845303b33d69ddce096c445002e60Kostya Serebryany EXPECT_DEATH(DoubleFree(), ASAN_PCRE_DOTALL 474ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany "ERROR: AddressSanitizer: attempting double-free" 47527f4932a8a0845303b33d69ddce096c445002e60Kostya Serebryany ".*is located 0 bytes inside of 400-byte region" 47627f4932a8a0845303b33d69ddce096c445002e60Kostya Serebryany ".*freed by thread T0 here" 47727f4932a8a0845303b33d69ddce096c445002e60Kostya Serebryany ".*previously allocated by thread T0 here"); 4781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 4791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 4801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanytemplate<int kSize> 481938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void SizedStackTest() { 4821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char a[kSize]; 4831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *A = Ident((char*)&a); 4841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (size_t i = 0; i < kSize; i++) 4851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany A[i] = i; 4861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[-1] = 0, ""); 4871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[-20] = 0, ""); 4881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[-31] = 0, ""); 4891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[kSize] = 0, ""); 4901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[kSize + 1] = 0, ""); 4911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[kSize + 10] = 0, ""); 4921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(A[kSize + 31] = 0, ""); 4931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 4941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 4951e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, SimpleStackTest) { 4961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<1>(); 4971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<2>(); 4981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<3>(); 4991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<4>(); 5001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<5>(); 5011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<6>(); 5021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<7>(); 5031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<16>(); 5041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<25>(); 5051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<34>(); 5061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<43>(); 5071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<51>(); 5081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<62>(); 5091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<64>(); 5101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SizedStackTest<128>(); 5111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5131e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ManyStackObjectsTest) { 5141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char XXX[10]; 5151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char YYY[20]; 5161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char ZZZ[30]; 5171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(XXX); 5181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(YYY); 5191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(ZZZ)[-1] = 0, ASAN_PCRE_DOTALL "XXX.*YYY.*ZZZ"); 5201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 522938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void Frame0(int frame, char *a, char *b, char *c) { 5231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char d[4] = {0}; 5241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *D = Ident(d); 5251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany switch (frame) { 5261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany case 3: a[5]++; break; 5271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany case 2: b[5]++; break; 5281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany case 1: c[5]++; break; 5291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany case 0: D[5]++; break; 5301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 5311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 532938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void Frame1(int frame, char *a, char *b) { 5331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char c[4] = {0}; Frame0(frame, a, b, c); 5341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany break_optimization(0); 5351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 536938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void Frame2(int frame, char *a) { 5371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char b[4] = {0}; Frame1(frame, a, b); 5381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany break_optimization(0); 5391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 540938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void Frame3(int frame) { 5411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char a[4] = {0}; Frame2(frame, a); 5421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany break_optimization(0); 5431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5451e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, GuiltyStackFrame0Test) { 5461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Frame3(0), "located .*in frame <.*Frame0"); 5471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5481e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, GuiltyStackFrame1Test) { 5491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Frame3(1), "located .*in frame <.*Frame1"); 5501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5511e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, GuiltyStackFrame2Test) { 5521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Frame3(2), "located .*in frame <.*Frame2"); 5531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5541e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, GuiltyStackFrame3Test) { 5551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Frame3(3), "located .*in frame <.*Frame3"); 5561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 558938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void LongJmpFunc1(jmp_buf buf) { 5591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // create three red zones for these two stack objects. 5601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a; 5611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int b; 5621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *A = Ident(&a); 5641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *B = Ident(&b); 5651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *A = *B; 5661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany longjmp(buf, 1); 5671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 569d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya SerebryanyNOINLINE void BuiltinLongJmpFunc1(jmp_buf buf) { 570d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany // create three red zones for these two stack objects. 571d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany int a; 572d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany int b; 573d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany 574d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany int *A = Ident(&a); 575d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany int *B = Ident(&b); 576d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany *A = *B; 577d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany __builtin_longjmp((void**)buf, 1); 578d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany} 579d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany 580938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void UnderscopeLongJmpFunc1(jmp_buf buf) { 5811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // create three red zones for these two stack objects. 5821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a; 5831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int b; 5841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *A = Ident(&a); 5861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *B = Ident(&b); 5871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *A = *B; 5881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany _longjmp(buf, 1); 5891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 5901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 591938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void SigLongJmpFunc1(sigjmp_buf buf) { 5921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // create three red zones for these two stack objects. 5931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a; 5941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int b; 5951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 5961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *A = Ident(&a); 5971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *B = Ident(&b); 5981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *A = *B; 5991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany siglongjmp(buf, 1); 6001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 603938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void TouchStackFunc() { 6041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a[100]; // long array will intersect with redzones from LongJmpFunc1. 6051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *A = Ident(a); 6061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < 100; i++) 6071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany A[i] = i*i; 6081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Test that we handle longjmp and do not report fals positives on stack. 6111e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, LongJmpTest) { 6121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static jmp_buf buf; 6131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (!setjmp(buf)) { 6141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany LongJmpFunc1(buf); 6151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } else { 6161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TouchStackFunc(); 6171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 6181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 620b989143d0be56496e8d5fcf75969af35a058792aKostya Serebryany#if not defined(__ANDROID__) 621c3a5c173f228cbb15e332e6bbc17c76ebd55d7a8Kostya SerebryanyTEST(AddressSanitizer, BuiltinLongJmpTest) { 622d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany static jmp_buf buf; 623c3a5c173f228cbb15e332e6bbc17c76ebd55d7a8Kostya Serebryany if (!__builtin_setjmp((void**)buf)) { 624d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany BuiltinLongJmpFunc1(buf); 625d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany } else { 626d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany TouchStackFunc(); 627d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany } 628d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany} 629b989143d0be56496e8d5fcf75969af35a058792aKostya Serebryany#endif // not defined(__ANDROID__) 630d3ca78fdb296d2a51fc224da673ebfff508acf44Kostya Serebryany 6311e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, UnderscopeLongJmpTest) { 6321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static jmp_buf buf; 6331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (!_setjmp(buf)) { 6341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany UnderscopeLongJmpFunc1(buf); 6351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } else { 6361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TouchStackFunc(); 6371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 6381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6401e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, SigLongJmpTest) { 6411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static sigjmp_buf buf; 6421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (!sigsetjmp(buf, 1)) { 6431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SigLongJmpFunc1(buf); 6441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } else { 6451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TouchStackFunc(); 6461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 6471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifdef __EXCEPTIONS 650938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE void ThrowFunc() { 6511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // create three red zones for these two stack objects. 6521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a; 6531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int b; 6541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *A = Ident(&a); 6561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *B = Ident(&b); 6571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *A = *B; 6581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ASAN_THROW(1); 6591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6611e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, CxxExceptionTest) { 6621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (ASAN_UAR) return; 6631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // TODO(kcc): this test crashes on 32-bit for some reason... 6645af39e50366f1aacbebc284f572f08ad1ad07357Kostya Serebryany if (SANITIZER_WORDSIZE == 32) return; 6651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany try { 6661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ThrowFunc(); 6671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } catch(...) {} 6681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TouchStackFunc(); 6691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 6711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *ThreadStackReuseFunc1(void *unused) { 6731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // create three red zones for these two stack objects. 6741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a; 6751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int b; 6761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *A = Ident(&a); 6781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *B = Ident(&b); 6791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *A = *B; 6801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_exit(0); 6811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 6821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *ThreadStackReuseFunc2(void *unused) { 6851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany TouchStackFunc(); 6861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 6871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 6891e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ThreadStackReuseTest) { 6901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t t; 6912697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, ThreadStackReuseFunc1, 0); 6922697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 6932697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, ThreadStackReuseFunc2, 0); 6942697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 6951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 6961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 697f6607d097833cd53460735c1a5a2fd52b97613ebTimur Iskhodzhanov#if defined(__i386__) || defined(__x86_64__) 6981e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, Store128Test) { 6991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *a = Ident((char*)malloc(Ident(12))); 7001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *p = a; 7011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany if (((uintptr_t)a % 16) != 0) 7021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany p = a + 8; 7031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany assert(((uintptr_t)p % 16) == 0); 7041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany __m128i value_wide = _mm_set1_epi16(0x1234); 7051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(_mm_store_si128((__m128i*)p, value_wide), 706ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany "AddressSanitizer: heap-buffer-overflow"); 707acd5c617b219e0f059620c2a3928d2cc821d4534Kostya Serebryany EXPECT_DEATH(_mm_store_si128((__m128i*)p, value_wide), 7081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "WRITE of size 16"); 7091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(_mm_store_si128((__m128i*)p, value_wide), 7101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "located 0 bytes to the right of 12-byte"); 7111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(a); 7121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 7141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7156cbfae439b81221d2250ffe0331958f130259755Kostya Serebryanystring RightOOBErrorMessage(int oob_distance, bool is_write) { 7161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany assert(oob_distance >= 0); 7171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char expected_str[100]; 7180b770b48e4ae053a7d0610e1c682405afba58fdaKostya Serebryany sprintf(expected_str, ASAN_PCRE_DOTALL "%s.*located %d bytes to the right", 719ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko is_write ? "WRITE" : "READ", oob_distance); 7201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return string(expected_str); 7211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7236cbfae439b81221d2250ffe0331958f130259755Kostya Serebryanystring RightOOBWriteMessage(int oob_distance) { 724ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko return RightOOBErrorMessage(oob_distance, /*is_write*/true); 725ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko} 726ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko 7276cbfae439b81221d2250ffe0331958f130259755Kostya Serebryanystring RightOOBReadMessage(int oob_distance) { 728ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko return RightOOBErrorMessage(oob_distance, /*is_write*/false); 729ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko} 730ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko 7316cbfae439b81221d2250ffe0331958f130259755Kostya Serebryanystring LeftOOBErrorMessage(int oob_distance, bool is_write) { 7321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany assert(oob_distance > 0); 7331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char expected_str[100]; 7340b770b48e4ae053a7d0610e1c682405afba58fdaKostya Serebryany sprintf(expected_str, ASAN_PCRE_DOTALL "%s.*located %d bytes to the left", 735ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko is_write ? "WRITE" : "READ", oob_distance); 7361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return string(expected_str); 7371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7396cbfae439b81221d2250ffe0331958f130259755Kostya Serebryanystring LeftOOBWriteMessage(int oob_distance) { 740ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko return LeftOOBErrorMessage(oob_distance, /*is_write*/true); 741ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko} 742ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko 7436cbfae439b81221d2250ffe0331958f130259755Kostya Serebryanystring LeftOOBReadMessage(int oob_distance) { 744ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko return LeftOOBErrorMessage(oob_distance, /*is_write*/false); 745ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko} 746ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko 7476cbfae439b81221d2250ffe0331958f130259755Kostya Serebryanystring LeftOOBAccessMessage(int oob_distance) { 748ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko assert(oob_distance > 0); 749ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko char expected_str[100]; 750ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko sprintf(expected_str, "located %d bytes to the left", oob_distance); 751ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko return string(expected_str); 752ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko} 753ada9ba14325df9e206f454c50bd1b55ea9ecdbb9Alexander Potapenko 7546cbfae439b81221d2250ffe0331958f130259755Kostya Serebryanychar* MallocAndMemsetString(size_t size, char ch) { 75544997c354c7cdb5257d9a41c837b12a6133f2d6bKostya Serebryany char *s = Ident((char*)malloc(size)); 75644997c354c7cdb5257d9a41c837b12a6133f2d6bKostya Serebryany memset(s, ch, size); 75744997c354c7cdb5257d9a41c837b12a6133f2d6bKostya Serebryany return s; 75844997c354c7cdb5257d9a41c837b12a6133f2d6bKostya Serebryany} 7596cbfae439b81221d2250ffe0331958f130259755Kostya Serebryany 7606cbfae439b81221d2250ffe0331958f130259755Kostya Serebryanychar* MallocAndMemsetString(size_t size) { 76144997c354c7cdb5257d9a41c837b12a6133f2d6bKostya Serebryany return MallocAndMemsetString(size, 'z'); 76244997c354c7cdb5257d9a41c837b12a6133f2d6bKostya Serebryany} 76344997c354c7cdb5257d9a41c837b12a6133f2d6bKostya Serebryany 764ca2849c2819b5c7a8771a1e8bc449cf8f5ef6527Alexey Samsonov#if defined(__linux__) && !defined(ANDROID) && !defined(__ANDROID__) 765c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany#define READ_TEST(READ_N_BYTES) \ 766c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany char *x = new char[10]; \ 767c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany int fd = open("/proc/self/stat", O_RDONLY); \ 768c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany ASSERT_GT(fd, 0); \ 769c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany EXPECT_DEATH(READ_N_BYTES, \ 770c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany ASAN_PCRE_DOTALL \ 771c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany "AddressSanitizer: heap-buffer-overflow" \ 772c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany ".* is located 0 bytes to the right of 10-byte region"); \ 773c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany close(fd); \ 774c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany delete [] x; \ 775c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany 7768530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya SerebryanyTEST(AddressSanitizer, pread) { 777c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany READ_TEST(pread(fd, x, 15, 0)); 7788530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany} 7798530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany 7808530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya SerebryanyTEST(AddressSanitizer, pread64) { 781c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany READ_TEST(pread64(fd, x, 15, 0)); 7828530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany} 7838530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany 7848530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya SerebryanyTEST(AddressSanitizer, read) { 785c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany READ_TEST(read(fd, x, 15)); 786c20b321d49f0eff60f1394d56e623d8ca94f24d7Kostya Serebryany} 787ca2849c2819b5c7a8771a1e8bc449cf8f5ef6527Alexey Samsonov#endif // defined(__linux__) && !defined(ANDROID) && !defined(__ANDROID__) 7888530e2b953f0b34ecd267a6aba5f155d5c08c5c8Kostya Serebryany 7891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// This test case fails 7901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Clang optimizes memcpy/memset calls which lead to unaligned access 7911e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_MemIntrinsicUnalignedAccessTest) { 7921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int size = Ident(4096); 7931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *s = Ident((char*)malloc(size)); 794ef8dfd8dffbf4385baf24e5aaea6c2cc7c6c936aAlexander Potapenko EXPECT_DEATH(memset(s + size - 1, 0, 2), RightOOBWriteMessage(0)); 7951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(s); 7961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 7971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 7981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// TODO(samsonov): Add a test with malloc(0) 7991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// TODO(samsonov): Add tests for str* and mem* functions. 8001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 801938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static int LargeFunction(bool do_bad_access) { 8021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *x = new int[100]; 8031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[0]++; 8041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[1]++; 8051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[2]++; 8061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[3]++; 8071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[4]++; 8081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[5]++; 8091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[6]++; 8101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[7]++; 8111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[8]++; 8121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[9]++; 8131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 8141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[do_bad_access ? 100 : 0]++; int res = __LINE__; 8151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 8161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[10]++; 8171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[11]++; 8181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[12]++; 8191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[13]++; 8201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[14]++; 8211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[15]++; 8221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[16]++; 8231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[17]++; 8241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[18]++; 8251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany x[19]++; 8261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 8271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete x; 8281e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return res; 8291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 8301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 8311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Test the we have correct debug info for the failing instruction. 8321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// This test requires the in-process symbolizer to be enabled by default. 8331e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_LargeFunctionSymbolizeTest) { 8341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int failing_line = LargeFunction(false); 8351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char expected_warning[128]; 8365a15541fc2bbe46a5ce0cd802b5c1055f2ffb14eKostya Serebryany sprintf(expected_warning, "LargeFunction.*asan_test.*:%d", failing_line); 8371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(LargeFunction(true), expected_warning); 8381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 8391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 8401e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Check that we unwind and symbolize correctly. 8411e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_MallocFreeUnwindAndSymbolizeTest) { 8421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *a = (int*)malloc_aaa(sizeof(int)); 8431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *a = 1; 8441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free_aaa(a); 8451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(*a = 1, "free_ccc.*free_bbb.*free_aaa.*" 8461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "malloc_fff.*malloc_eee.*malloc_ddd"); 8471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 8481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 849b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryanystatic bool TryToSetThreadName(const char *name) { 850b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany#if defined(__linux__) && defined(PR_SET_NAME) 851b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany return 0 == prctl(PR_SET_NAME, (unsigned long)name, 0, 0, 0); 852b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany#else 853b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany return false; 854716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany#endif 855716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany} 856716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany 8571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *ThreadedTestAlloc(void *a) { 858b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany EXPECT_EQ(true, TryToSetThreadName("AllocThr")); 8591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int **p = (int**)a; 8601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *p = new int; 8611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 8621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 8631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 8641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *ThreadedTestFree(void *a) { 865b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany EXPECT_EQ(true, TryToSetThreadName("FreeThr")); 8661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int **p = (int**)a; 8671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany delete *p; 8681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 8691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 8701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 8711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *ThreadedTestUse(void *a) { 872b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany EXPECT_EQ(true, TryToSetThreadName("UseThr")); 8731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int **p = (int**)a; 8741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany **p = 1; 8751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 8761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 8771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 8781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid ThreadedTestSpawn() { 8791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t t; 8801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *x; 8812697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, ThreadedTestAlloc, &x); 8822697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 8832697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, ThreadedTestFree, &x); 8842697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 8852697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, ThreadedTestUse, &x); 8862697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 8871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 8881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 8891e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ThreadedTest) { 8901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(ThreadedTestSpawn(), 8911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ASAN_PCRE_DOTALL 8921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "Thread T.*created" 8931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ".*Thread T.*created" 8941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ".*Thread T.*created"); 8951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 8961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 897b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryanyvoid *ThreadedTestFunc(void *unused) { 898b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany // Check if prctl(PR_SET_NAME) is supported. Return if not. 899b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany if (!TryToSetThreadName("TestFunc")) 900b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany return 0; 901716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany EXPECT_DEATH(ThreadedTestSpawn(), 902716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany ASAN_PCRE_DOTALL 903a390ece58317a25ef26866cef6753df4b06a3e65Kostya Serebryany "WRITE .*thread T. .UseThr." 904a390ece58317a25ef26866cef6753df4b06a3e65Kostya Serebryany ".*freed by thread T. .FreeThr. here:" 905a390ece58317a25ef26866cef6753df4b06a3e65Kostya Serebryany ".*previously allocated by thread T. .AllocThr. here:" 906b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany ".*Thread T. .UseThr. created by T.*TestFunc" 907b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany ".*Thread T. .FreeThr. created by T" 908b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany ".*Thread T. .AllocThr. created by T" 909716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany ""); 910b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany return 0; 911b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany} 912b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany 913b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya SerebryanyTEST(AddressSanitizer, ThreadNamesTest) { 914b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany // Run ThreadedTestFunc in a separate thread because it tries to set a 915b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany // thread name and we don't want to change the main thread's name. 916b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany pthread_t t; 917b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany PTHREAD_CREATE(&t, 0, ThreadedTestFunc, 0); 918b8a59a0e030d0aacf4df1fe8f7fb4e6f82bab654Kostya Serebryany PTHREAD_JOIN(t, 0); 919716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany} 920716e2f25123bf9b20fbc6b582803a3929b78b96dKostya Serebryany 9211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#if ASAN_NEEDS_SEGV 9221e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ShadowGapTest) { 9235af39e50366f1aacbebc284f572f08ad1ad07357Kostya Serebryany#if SANITIZER_WORDSIZE == 32 9241e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *addr = (char*)0x22000000; 9251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#else 9261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *addr = (char*)0x0000100000080000; 9271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 928ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany EXPECT_DEATH(*addr = 1, "AddressSanitizer: SEGV on unknown"); 9291e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 9301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif // ASAN_NEEDS_SEGV 9311e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyextern "C" { 933938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void UseThenFreeThenUse() { 9341e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *x = Ident((char*)malloc(8)); 9351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *x = 1; 9361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free_aaa(x); 9371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany *x = 2; 9381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 9391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 9401e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9411e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, UseThenFreeThenUseTest) { 9421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(UseThenFreeThenUse(), "freed by thread"); 9431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 9441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9451e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, StrDupTest) { 9461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany free(strdup(Ident("123"))); 9471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 9481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// Currently we create and poison redzone at right of global variables. 9501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic char static110[110]; 9511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyconst char ConstGlob[7] = {1, 2, 3, 4, 5, 6, 7}; 9521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic const char StaticConstGlob[3] = {9, 8, 7}; 9531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9541e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, GlobalTest) { 9551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char func_static15[15]; 9561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char fs1[10]; 9581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char fs2[10]; 9591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char fs3[10]; 9601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany glob5[Ident(0)] = 0; 9621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany glob5[Ident(1)] = 0; 9631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany glob5[Ident(2)] = 0; 9641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany glob5[Ident(3)] = 0; 9651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany glob5[Ident(4)] = 0; 9661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(glob5[Ident(5)] = 0, 9681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "0 bytes to the right of global variable.*glob5.* size 5"); 9691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(glob5[Ident(5+6)] = 0, 9701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "6 bytes to the right of global variable.*glob5.* size 5"); 9711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(static110); // avoid optimizations 9721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static110[Ident(0)] = 0; 9731e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static110[Ident(109)] = 0; 9741e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(static110[Ident(110)] = 0, 9751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "0 bytes to the right of global variable"); 9761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(static110[Ident(110+7)] = 0, 9771e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "7 bytes to the right of global variable"); 9781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(func_static15); // avoid optimizations 9801e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany func_static15[Ident(0)] = 0; 9811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(func_static15[Ident(15)] = 0, 9821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "0 bytes to the right of global variable"); 9831e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(func_static15[Ident(15 + 9)] = 0, 9841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "9 bytes to the right of global variable"); 9851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(fs1); 9871e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(fs2); 9881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(fs3); 9891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // We don't create left redzones, so this is not 100% guaranteed to fail. 9911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // But most likely will. 9921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(fs2[Ident(-1)] = 0, "is located.*of global variable"); 9931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(Ident(ConstGlob)[8]), 9951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "is located 1 bytes to the right of .*ConstGlob"); 9961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(Ident(StaticConstGlob)[5]), 9971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany "is located 2 bytes to the right of .*StaticConstGlob"); 9981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 9991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany // call stuff from another file. 10001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany GlobalsTest(0); 10011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 10021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 10031e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, GlobalStringConstTest) { 10041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static const char *zoo = "FOOBAR123"; 10051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const char *p = Ident(zoo); 10061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_DEATH(Ident(p[15]), "is ascii string 'FOOBAR123'"); 10071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 10081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1009c37ca572876a585b6a910f14a85cc7ba7fc22f20Kostya SerebryanyTEST(AddressSanitizer, FileNameInGlobalReportTest) { 1010c37ca572876a585b6a910f14a85cc7ba7fc22f20Kostya Serebryany static char zoo[10]; 1011c37ca572876a585b6a910f14a85cc7ba7fc22f20Kostya Serebryany const char *p = Ident(zoo); 1012c37ca572876a585b6a910f14a85cc7ba7fc22f20Kostya Serebryany // The file name should be present in the report. 10135a15541fc2bbe46a5ce0cd802b5c1055f2ffb14eKostya Serebryany EXPECT_DEATH(Ident(p[15]), "zoo.*asan_test."); 1014c37ca572876a585b6a910f14a85cc7ba7fc22f20Kostya Serebryany} 1015c37ca572876a585b6a910f14a85cc7ba7fc22f20Kostya Serebryany 10161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyint *ReturnsPointerToALocalObject() { 10171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int a = 0; 10181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return Ident(&a); 10191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 10201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1021918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany#if ASAN_UAR == 1 10221e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, LocalReferenceReturnTest) { 10231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *(*f)() = Ident(ReturnsPointerToALocalObject); 1024918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany int *p = f(); 1025918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany // Call 'f' a few more times, 'p' should still be poisoned. 1026918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany for (int i = 0; i < 32; i++) 1027918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany f(); 1028ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany EXPECT_DEATH(*p = 1, "AddressSanitizer: stack-use-after-return"); 1029918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany EXPECT_DEATH(*p = 1, "is located.*in frame .*ReturnsPointerToALocal"); 10301e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 1031918b18a849cea679bff31a4e0dfb3745302c240aKostya Serebryany#endif 10321e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 10331e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanytemplate <int kSize> 1034938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void FuncWithStack() { 10351e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char x[kSize]; 10361e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(x)[0] = 0; 10371e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(x)[kSize-1] = 0; 10381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 10391e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 10401e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanystatic void LotsOfStackReuse() { 10411e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int LargeStack[10000]; 10421e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(LargeStack)[0] = 0; 10431e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < 10000; i++) { 10441e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 1>(); 10451e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 2>(); 10461e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 4>(); 10471e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 8>(); 10481e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 16>(); 10491e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 32>(); 10501e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 64>(); 10511e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 128>(); 10521e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 256>(); 10531e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany FuncWithStack<128 * 512>(); 10541e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(LargeStack)[0] = 0; 10551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 10561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 10571e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 10581e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, StressStackReuseTest) { 10591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany LotsOfStackReuse(); 10601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 10611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 10621e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, ThreadedStressStackReuseTest) { 10631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const int kNumThreads = 20; 10641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t t[kNumThreads]; 10651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < kNumThreads; i++) { 10662697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t[i], 0, (void* (*)(void *x))LotsOfStackReuse, 0); 10671e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 10681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < kNumThreads; i++) { 10692697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t[i], 0); 10701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 10711e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 10721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1073f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryanystatic void *PthreadExit(void *a) { 1074f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany pthread_exit(0); 10757b7b55e99166511ce1e66bf6b79c46ae4aa60d17Evgeniy Stepanov return 0; 1076f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany} 1077f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany 1078f58f998066db0231e521169d2f50af439ceecb49Kostya SerebryanyTEST(AddressSanitizer, PthreadExitTest) { 1079f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany pthread_t t; 1080f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany for (int i = 0; i < 1000; i++) { 10812697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, PthreadExit, 0); 10822697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 1083f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany } 1084f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany} 1085f58f998066db0231e521169d2f50af439ceecb49Kostya Serebryany 10861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifdef __EXCEPTIONS 1087938106753364d96cedc11cbdc35a15030fb44d0cTimur IskhodzhanovNOINLINE static void StackReuseAndException() { 10881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int large_stack[1000]; 10891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(large_stack); 10901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ASAN_THROW(1); 10911e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 10921e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 10931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// TODO(kcc): support exceptions with use-after-return. 10941e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_StressStackReuseAndExceptionsTest) { 10951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany for (int i = 0; i < 10000; i++) { 10961e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany try { 10971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany StackReuseAndException(); 10981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } catch(...) { 10991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 11001e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 11011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif 11031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 11041e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, MlockTest) { 11051e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, mlockall(MCL_CURRENT)); 11061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, mlock((void*)0x12345, 0x5678)); 11071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, munlockall()); 11081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany EXPECT_EQ(0, munlock((void*)0x987, 0x654)); 11091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1111c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryanystruct LargeStruct { 1112c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany int foo[100]; 1113c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany}; 1114c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany 1115c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany// Test for bug http://llvm.org/bugs/show_bug.cgi?id=11763. 1116c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany// Struct copy should not cause asan warning even if lhs == rhs. 1117c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya SerebryanyTEST(AddressSanitizer, LargeStructCopyTest) { 1118c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany LargeStruct a; 1119c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany *Ident(&a) = *Ident(&a); 1120c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany} 1121c655cfa8dc0fdf5b521e565f6cbdbf7981fba1b2Kostya Serebryany 11221cffef3e39cad4eb33606afbebac78d6637361acAlexey SamsonovATTRIBUTE_NO_ADDRESS_SAFETY_ANALYSIS 11233be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryanystatic void NoAddressSafety() { 11243be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany char *foo = new char[10]; 11253be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany Ident(foo)[10] = 0; 11263be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany delete [] foo; 11273be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany} 11283be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany 11293be19f4fa3519e358fd41a5feda82c39a22ef107Kostya SerebryanyTEST(AddressSanitizer, AttributeNoAddressSafetyTest) { 11303be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany Ident(NoAddressSafety)(); 11313be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany} 11323be19f4fa3519e358fd41a5feda82c39a22ef107Kostya Serebryany 113329e09223b9d4f53f1be528d6a572b66034c26611Alexey Samsonov// It doesn't work on Android, as calls to new/delete go through malloc/free. 11345d48617936d6415f2037a5e1b9d57f9077ee92efAlexander Potapenko#if !defined(ANDROID) && !defined(__ANDROID__) 1135fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryanystatic string MismatchStr(const string &str) { 1136fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany return string("AddressSanitizer: alloc-dealloc-mismatch \\(") + str; 1137fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany} 1138fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany 11398f0e311767b783db4a15139dddfe7a924fa3724eAlexey SamsonovTEST(AddressSanitizer, AllocDeallocMismatch) { 1140fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany EXPECT_DEATH(free(Ident(new int)), 1141fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany MismatchStr("operator new vs free")); 1142fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany EXPECT_DEATH(free(Ident(new int[2])), 1143fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany MismatchStr("operator new \\[\\] vs free")); 1144fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany EXPECT_DEATH(delete (Ident(new int[2])), 1145fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany MismatchStr("operator new \\[\\] vs operator delete")); 1146fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany EXPECT_DEATH(delete (Ident((int*)malloc(2 * sizeof(int)))), 1147fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany MismatchStr("malloc vs operator delete")); 1148fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany EXPECT_DEATH(delete [] (Ident(new int)), 1149fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany MismatchStr("operator new vs operator delete \\[\\]")); 1150fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany EXPECT_DEATH(delete [] (Ident((int*)malloc(2 * sizeof(int)))), 1151fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany MismatchStr("malloc vs operator delete \\[\\]")); 1152fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany} 115329e09223b9d4f53f1be528d6a572b66034c26611Alexey Samsonov#endif 1154fe6d91684bcda766593800f6307233f1a33d31f6Kostya Serebryany 11551e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// ------------------ demo tests; run each one-by-one ------------- 11561e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// e.g. --gtest_filter=*DemoOOBLeftHigh --gtest_also_run_disabled_tests 11571e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoThreadedTest) { 11581e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany ThreadedTestSpawn(); 11591e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11601e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 11611e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid *SimpleBugOnSTack(void *x = 0) { 11621e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char a[20]; 11631e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(a)[20] = 0; 11641e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany return 0; 11651e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11661e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 11671e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoStackTest) { 11681e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany SimpleBugOnSTack(); 11691e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11701e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 11711e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoThreadStackTest) { 11721e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany pthread_t t; 11732697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_CREATE(&t, 0, SimpleBugOnSTack, 0); 11742697687059e64a4f1319dc23a0a3ca59982d53f6Kostya Serebryany PTHREAD_JOIN(t, 0); 11751e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11761e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 11771e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoUAFLowIn) { 11781e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany uaf_test<U1>(10, 0); 11791e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11801e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoUAFLowLeft) { 11811e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany uaf_test<U1>(10, -2); 11821e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11831e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoUAFLowRight) { 11841e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany uaf_test<U1>(10, 10); 11851e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11861e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 11871e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoUAFHigh) { 11881e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany uaf_test<U1>(kLargeMalloc, 0); 11891e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11901e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 11911e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoOOM) { 11925af39e50366f1aacbebc284f572f08ad1ad07357Kostya Serebryany size_t size = SANITIZER_WORDSIZE == 64 ? (size_t)(1ULL << 40) : (0xf0000000); 11931e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany printf("%p\n", malloc(size)); 11941e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11951e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 11961e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoDoubleFreeTest) { 11971e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany DoubleFree(); 11981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 11991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 12001e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoNullDerefTest) { 12011e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany int *a = 0; 12021e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(a)[10] = 0; 12031e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 12041e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 12051e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoFunctionStaticTest) { 12061e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char a[100]; 12071e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char b[100]; 12081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany static char c[100]; 12091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(a); 12101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(b); 12111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(c); 12121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(a)[5] = 0; 12131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(b)[105] = 0; 12141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany Ident(a)[5] = 0; 12151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 12161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 12171e172b4bdec57329bf904f063a29f99cddf2d85fKostya SerebryanyTEST(AddressSanitizer, DISABLED_DemoTooMuchMemoryTest) { 12181e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany const size_t kAllocSize = (1 << 28) - 1024; 12191e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany size_t total_size = 0; 12201e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany while (true) { 12211e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany char *x = (char*)malloc(kAllocSize); 12221e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany memset(x, 0, kAllocSize); 12231e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany total_size += kAllocSize; 12240aa04b3f432bc55e7c116d5280685ee3f243be8eKostya Serebryany fprintf(stderr, "total: %ldM %p\n", (long)total_size >> 20, x); 12251e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany } 12261e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} 12271e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 12284eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany// http://code.google.com/p/address-sanitizer/issues/detail?id=66 12290796393f2088e3b75c4110934451160eeb037fabKostya SerebryanyTEST(AddressSanitizer, BufferOverflowAfterManyFrees) { 12304eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany for (int i = 0; i < 1000000; i++) { 12314eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany delete [] (Ident(new char [8644])); 12324eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany } 12334eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany char *x = new char[8192]; 1234ca9b5dd9922fb7f6e0ca06dbba7db7398b8997f1Kostya Serebryany EXPECT_DEATH(x[Ident(8192)] = 0, "AddressSanitizer: heap-buffer-overflow"); 12354eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany delete [] Ident(x); 12364eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany} 12374eaa17848ed02cae465f10aa5fe095e42dbf0d61Kostya Serebryany 12381e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 12395b6eab9dc5572a66e3af54ab087255ffa4dd5185Evgeniy Stepanov// Test that instrumentation of stack allocations takes into account 12405b6eab9dc5572a66e3af54ab087255ffa4dd5185Evgeniy Stepanov// AllocSize of a type, and not its StoreSize (16 vs 10 bytes for long double). 12415b6eab9dc5572a66e3af54ab087255ffa4dd5185Evgeniy Stepanov// See http://llvm.org/bugs/show_bug.cgi?id=12047 for more details. 12425b6eab9dc5572a66e3af54ab087255ffa4dd5185Evgeniy StepanovTEST(AddressSanitizer, LongDoubleNegativeTest) { 12435b6eab9dc5572a66e3af54ab087255ffa4dd5185Evgeniy Stepanov long double a, b; 12449b90e95d4dc59c6d97ed73b2470f5e21e7b346d5Kostya Serebryany static long double c; 12455b6eab9dc5572a66e3af54ab087255ffa4dd5185Evgeniy Stepanov memcpy(Ident(&a), Ident(&b), sizeof(long double)); 12469b90e95d4dc59c6d97ed73b2470f5e21e7b346d5Kostya Serebryany memcpy(Ident(&c), Ident(&b), sizeof(long double)); 124776e842845c927e92c2c21c41ac51e364fa17528cAlexey Samsonov} 1248