1 // RUN: %clangxx_cfi -o %t1 %s 2 // RUN: %expect_crash %t1 2>&1 | FileCheck --check-prefix=CFI %s 3 4 // RUN: %clangxx_cfi -DB32 -o %t2 %s 5 // RUN: %expect_crash %t2 2>&1 | FileCheck --check-prefix=CFI %s 6 7 // RUN: %clangxx_cfi -DB64 -o %t3 %s 8 // RUN: %expect_crash %t3 2>&1 | FileCheck --check-prefix=CFI %s 9 10 // RUN: %clangxx_cfi -DBM -o %t4 %s 11 // RUN: %expect_crash %t4 2>&1 | FileCheck --check-prefix=CFI %s 12 13 // RUN: %clangxx -o %t5 %s 14 // RUN: %t5 2>&1 | FileCheck --check-prefix=NCFI %s 15 16 // RUN: %clangxx_cfi_diag -o %t6 %s 17 // RUN: %t6 2>&1 | FileCheck --check-prefix=CFI-DIAG %s 18 19 // Tests that the CFI enforcement also applies to virtual destructor calls made 20 // via 'delete'. 21 22 // REQUIRES: cxxabi 23 24 #include <stdio.h> 25 #include "utils.h" 26 27 struct A { 28 virtual ~A(); 29 }; 30 31 A::~A() {} 32 33 struct B { 34 virtual ~B(); 35 }; 36 37 B::~B() {} 38 39 int main() { 40 #ifdef B32 41 break_optimization(new Deriver<B, 0>); 42 #endif 43 44 #ifdef B64 45 break_optimization(new Deriver<B, 0>); 46 break_optimization(new Deriver<B, 1>); 47 #endif 48 49 #ifdef BM 50 break_optimization(new Deriver<B, 0>); 51 break_optimization(new Deriver<B, 1>); 52 break_optimization(new Deriver<B, 2>); 53 #endif 54 55 A *a = new A; 56 break_optimization(a); 57 58 // CFI: 1 59 // NCFI: 1 60 fprintf(stderr, "1\n"); 61 62 // CFI-DIAG: runtime error: control flow integrity check for type 'B' failed during virtual call 63 // CFI-DIAG-NEXT: note: vtable is of type '{{(struct )?}}A' 64 delete (B *)a; // UB here 65 66 // CFI-NOT: {{^2$}} 67 // NCFI: {{^2$}} 68 fprintf(stderr, "2\n"); 69 } 70