1 // RUN: %clangxx -g -DSHARED_LIB %s -fPIC -shared -o %T/target_uninstrumented-so.so 2 // RUN: %clangxx_cfi_diag -g %s -o %t %T/target_uninstrumented-so.so 3 // RUN: %t 2>&1 | FileCheck %s 4 5 // REQUIRES: cxxabi 6 7 #include <stdio.h> 8 #include <string.h> 9 10 struct A { 11 virtual void f(); 12 }; 13 14 void *create_B(); 15 16 #ifdef SHARED_LIB 17 18 struct B { 19 virtual void f(); 20 }; 21 void B::f() {} 22 23 void *create_B() { 24 return (void *)(new B()); 25 } 26 27 #else 28 29 void A::f() {} 30 31 int main(int argc, char *argv[]) { 32 void *p = create_B(); 33 // CHECK: runtime error: control flow integrity check for type 'A' failed during cast to unrelated type 34 // CHECK: invalid vtable in module {{.*}}target_uninstrumented-so.so 35 A *a = (A *)p; 36 memset(p, 0, sizeof(A)); 37 // CHECK: runtime error: control flow integrity check for type 'A' failed during cast to unrelated type 38 // CHECK-NOT: invalid vtable in module 39 // CHECK: invalid vtable 40 a = (A *)p; 41 // CHECK: done 42 fprintf(stderr, "done %p\n", a); 43 } 44 #endif 45
