31 lines · cpp
1// RUN: %clang -x c -fsanitize=pointer-overflow %s -o %t2// RUN: %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-NOTYPE3// RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-TYPE4 5// RUN: %clangxx -fsanitize=pointer-overflow %s -o %t6// RUN: %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-NOTYPE7// RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-TYPE8 9#include <stdlib.h>10 11int 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]]:1722 // CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: nullptr-with-nonzero-offset {{.*}}summary.cpp:[[@LINE-2]]:1723 24 base = (char *)1;25 result = base - 1;26 // CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:1727 // CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: nullptr-after-nonzero-offset {{.*}}summary.cpp:[[@LINE-2]]:1728 29 return 0;30}31