| 1 | // RUN: %clang -x c -fsanitize=pointer-overflow %s -o %t |
|---|---|
| 2 | // RUN: %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-NOTYPE |
| 3 | // RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-TYPE |
| 4 | |
| 5 | // RUN: %clangxx -fsanitize=pointer-overflow %s -o %t |
| 6 | // RUN: %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-NOTYPE |
| 7 | // RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-TYPE |
| 8 | |
| 9 | #include <stdlib.h> |
| 10 | |
| 11 | int main(int argc, char *argv[]) { |
| 12 | char *base, *result; |
| 13 | |
| 14 | base = (char *)0; |
| 15 | result = base + 0; |
| 16 | // CHECK-NOTYPE-NOT: SUMMARY: |
| 17 | // CHECK-TYPE-NOT: SUMMARY: |
| 18 | |
| 19 | base = (char *)0; |
| 20 | result = base + 1; |
| 21 | // CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17 |
| 22 | // CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: nullptr-with-nonzero-offset {{.*}}summary.cpp:[[@LINE-2]]:17 |
| 23 | |
| 24 | base = (char *)1; |
| 25 | result = base - 1; |
| 26 | // CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17 |
| 27 | // CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: nullptr-after-nonzero-offset {{.*}}summary.cpp:[[@LINE-2]]:17 |
| 28 | |
| 29 | return 0; |
| 30 | } |
| 31 |