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 // AArch64 lacks variadic instrumentation for MSAN. 12 // REQUIRES: stable-runtime 13 14 class C { 15 int *null_; 16 int *nonnull_; 17 18 public: 19 C(int *null, __attribute__((nonnull)) int *nonnull) 20 : null_(null), nonnull_(nonnull) {} 21 int value() { return *nonnull_; } 22 int method(int *nonnull, int *null) __attribute__((nonnull(2))) { 23 return *nonnull_ + *nonnull; 24 } 25 }; 26 27 __attribute__((nonnull)) int func(int *nonnull) { return *nonnull; } 28 29 #include <stdarg.h> 30 __attribute__((nonnull)) int variadic(int x, ...) { 31 va_list args; 32 va_start(args, x); 33 int *nonnull = va_arg(args, int*); 34 int res = *nonnull; 35 va_end(args); 36 return res; 37 } 38 39 int main(int argc, char *argv[]) { 40 int local = 0; 41 int *arg = (argv[1][0] == '0') ? 0x0 : &local; 42 switch (argv[1][1]) { 43 case 'c': 44 return C(0x0, arg).value(); 45 // CTOR: {{.*}}nonnull-arg.cpp:[[@LINE-1]]:21: runtime error: null pointer passed as argument 2, which is declared to never be null 46 // CTOR-NEXT: {{.*}}nonnull-arg.cpp:19:31: note: nonnull attribute specified here 47 case 'm': 48 return C(0x0, &local).method(arg, 0x0); 49 // METHOD: {{.*}}nonnull-arg.cpp:[[@LINE-1]]:36: runtime error: null pointer passed as argument 1, which is declared to never be null 50 // METHOD-NEXT: {{.*}}nonnull-arg.cpp:22:54: note: nonnull attribute specified here 51 case 'f': 52 return func(arg); 53 // FUNC: {{.*}}nonnull-arg.cpp:[[@LINE-1]]:19: runtime error: null pointer passed as argument 1, which is declared to never be null 54 // FUNC-NEXT: {{.*}}nonnull-arg.cpp:27:16: note: nonnull attribute specified here 55 case 'v': 56 return variadic(42, arg); 57 // VARIADIC: {{.*}}nonnull-arg.cpp:[[@LINE-1]]:27: runtime error: null pointer passed as argument 2, which is declared to never be null 58 // VARIADIC-NEXT: {{.*}}nonnull-arg.cpp:30:16: note: nonnull attribute specified here 59 } 60 return 0; 61 } 62
