| 1 | // Test that large memset/memcpy/memmove check the entire range. |
| 2 | |
| 3 | // RUN: %clangxx_asan -O0 -DTEST_MEMSET %s -o %t && not %run %t 2>&1 | \ |
| 4 | // RUN: FileCheck %s --check-prefix=CHECK-MEMSET |
| 5 | // RUN: %clangxx_asan -O1 -DTEST_MEMSET %s -o %t && not %run %t 2>&1 | \ |
| 6 | // RUN: FileCheck %s --check-prefix=CHECK-MEMSET |
| 7 | // RUN: %clangxx_asan -O2 -DTEST_MEMSET %s -o %t && not %run %t 2>&1 | \ |
| 8 | // RUN: FileCheck %s --check-prefix=CHECK-MEMSET |
| 9 | // RUN: %clangxx_asan -O3 -DTEST_MEMSET %s -o %t && not %run %t 2>&1 | \ |
| 10 | // RUN: FileCheck %s --check-prefix=CHECK-MEMSET |
| 11 | |
| 12 | // RUN: %clangxx_asan -O0 -DTEST_MEMCPY %s -o %t && not %run %t 2>&1 | \ |
| 13 | // RUN: FileCheck %s --check-prefix=CHECK-MEMCPY |
| 14 | // RUN: %clangxx_asan -O1 -DTEST_MEMCPY %s -o %t && not %run %t 2>&1 | \ |
| 15 | // RUN: FileCheck %s --check-prefix=CHECK-MEMCPY |
| 16 | // RUN: %clangxx_asan -O2 -DTEST_MEMCPY %s -o %t && not %run %t 2>&1 | \ |
| 17 | // RUN: FileCheck %s --check-prefix=CHECK-MEMCPY |
| 18 | // RUN: %clangxx_asan -O3 -DTEST_MEMCPY %s -o %t && not %run %t 2>&1 | \ |
| 19 | // RUN: FileCheck %s --check-prefix=CHECK-MEMCPY |
| 20 | |
| 21 | // RUN: %clangxx_asan -O0 -DTEST_MEMMOVE %s -o %t && not %run %t 2>&1 | \ |
| 22 | // RUN: FileCheck %s --check-prefix=CHECK-MEMMOVE |
| 23 | // RUN: %clangxx_asan -O1 -DTEST_MEMMOVE %s -o %t && not %run %t 2>&1 | \ |
| 24 | // RUN: FileCheck %s --check-prefix=CHECK-MEMMOVE |
| 25 | // RUN: %clangxx_asan -O2 -DTEST_MEMMOVE %s -o %t && not %run %t 2>&1 | \ |
| 26 | // RUN: FileCheck %s --check-prefix=CHECK-MEMMOVE |
| 27 | // RUN: %clangxx_asan -O3 -DTEST_MEMMOVE %s -o %t && not %run %t 2>&1 | \ |
| 28 | // RUN: FileCheck %s --check-prefix=CHECK-MEMMOVE |
| 29 | |
| 30 | // RUN: %clangxx_asan -O2 -DTEST_MEMCPY_SIZE_OVERFLOW %s -o %t && not %run %t 2>&1 | \ |
| 31 | // RUN: FileCheck %s --check-prefix=CHECK-MEMCPY_SIZE_OVERFLOW |
| 32 | |
| 33 | #include <assert.h> |
| 34 | #include <string.h> |
| 35 | #include <stdlib.h> |
| 36 | #include <stdio.h> |
| 37 | |
| 38 | #include <sanitizer/asan_interface.h> |
| 39 | |
| 40 | typedef void *(*memcpy_t)(void *, const void *, size_t); |
| 41 | |
| 42 | int main(int argc, char **argv) { |
| 43 | char * volatile p = (char *)malloc(size: 3000); |
| 44 | __asan_poison_memory_region(addr: p + 512, size: 32); |
| 45 | #if defined(TEST_MEMSET) |
| 46 | memset(p, 0, 3000); |
| 47 | assert(p[1] == 0); |
| 48 | // CHECK-MEMSET: AddressSanitizer: use-after-poison on address |
| 49 | // CHECK-MEMSET: in {{.*}}memset |
| 50 | #else |
| 51 | char * volatile q = (char *)malloc(size: 3000); |
| 52 | #if defined(TEST_MEMCPY) |
| 53 | memcpy(q, p, 3000); |
| 54 | // CHECK-MEMCPY: AddressSanitizer: use-after-poison on address |
| 55 | // On Mac, memmove and memcpy are the same. Accept either one. |
| 56 | // CHECK-MEMCPY: in {{.*(memmove|memcpy)}} |
| 57 | #elif defined(TEST_MEMMOVE) |
| 58 | memmove(q, p, 3000); |
| 59 | // CHECK-MEMMOVE: AddressSanitizer: use-after-poison on address |
| 60 | // CHECK-MEMMOVE: in {{.*(memmove|memcpy)}} |
| 61 | #elif defined(TEST_MEMCPY_SIZE_OVERFLOW) |
| 62 | volatile memcpy_t my_memcpy = &memcpy; |
| 63 | my_memcpy(p, q, -argc); |
| 64 | // CHECK-MEMCPY_SIZE_OVERFLOW: AddressSanitizer: negative-size-param: (size=-1) |
| 65 | #endif |
| 66 | assert(q[1] == 0); |
| 67 | free(ptr: q); |
| 68 | #endif |
| 69 | free(ptr: p); |
| 70 | return 0; |
| 71 | } |
| 72 | |