1 // RUN: %clangxx -fsanitize=nonnull-attribute -fno-sanitize-recover=all %s -O3 -o %t 2 // RUN: %run %t nc 3 // RUN: %run %t nm 4 // RUN: %run %t nf 5 // RUN: %run %t nv 6 // RUN: not %run %t 0c 2>&1 | FileCheck %s --check-prefix=CTOR 7 // RUN: not %run %t 0m 2>&1 | FileCheck %s --check-prefix=METHOD 8 // RUN: not %run %t 0f 2>&1 | FileCheck %s --check-prefix=FUNC 9 // RUN: not %run %t 0v 2>&1 | FileCheck %s --check-prefix=VARIADIC 10 11 class C { 12 int *null_; 13 int *nonnull_; 14 15 public: 16 C(int *null, __attribute__((nonnull)) int *nonnull) 17 : null_(null), nonnull_(nonnull) {} 18 int value() { return *nonnull_; } 19 int method(int *nonnull, int *null) __attribute__((nonnull(2))) { 20 return *nonnull_ + *nonnull; 21 } 22 }; 23 24 __attribute__((nonnull)) int func(int *nonnull) { return *nonnull; } 25 26 #include <stdarg.h> 27 __attribute__((nonnull)) int variadic(int x, ...) { 28 va_list args; 29 va_start(args, x); 30 int *nonnull = va_arg(args, int*); 31 int res = *nonnull; 32 va_end(args); 33 return res; 34 } 35 36 int main(int argc, char *argv[]) { 37 int local = 0; 38 int *arg = (argv[1][0] == '0') ? 0x0 : &local; 39 switch (argv[1][1]) { 40 case 'c': 41 return C(0x0, arg).value(); 42 // CTOR: {{.*}}nonnull-arg.cpp:[[@LINE-1]]:21: runtime error: null pointer passed as argument 2, which is declared to never be null 43 // CTOR-NEXT: {{.*}}nonnull-arg.cpp:16:31: note: nonnull attribute specified here 44 case 'm': 45 return C(0x0, &local).method(arg, 0x0); 46 // METHOD: {{.*}}nonnull-arg.cpp:[[@LINE-1]]:36: runtime error: null pointer passed as argument 1, which is declared to never be null 47 // METHOD-NEXT: {{.*}}nonnull-arg.cpp:19:54: note: nonnull attribute specified here 48 case 'f': 49 return func(arg); 50 // FUNC: {{.*}}nonnull-arg.cpp:[[@LINE-1]]:19: runtime error: null pointer passed as argument 1, which is declared to never be null 51 // FUNC-NEXT: {{.*}}nonnull-arg.cpp:24:16: note: nonnull attribute specified here 52 case 'v': 53 return variadic(42, arg); 54 // VARIADIC: {{.*}}nonnull-arg.cpp:[[@LINE-1]]:27: runtime error: null pointer passed as argument 2, which is declared to never be null 55 // VARIADIC-NEXT: {{.*}}nonnull-arg.cpp:27:16: note: nonnull attribute specified here 56 } 57 return 0; 58 } 59
