1// RUN: %clangxx_cfi_dso -DSHARED_LIB %s -fPIC -shared -o %t-so.so
2// RUN: %clangxx_cfi_dso %s -o %t %t-so.so && %expect_crash %t 2>&1 | FileCheck %s
3
4// RUN: %clangxx_cfi_dso_diag -g -DSHARED_LIB %s -fPIC -shared -o %t2-so.so
5// RUN: %clangxx_cfi_dso_diag -g %s -o %t2 %t2-so.so && %t2 2>&1 | FileCheck %s --check-prefix=CFI-DIAG
6
7#include <stdio.h>
8
9#ifdef SHARED_LIB
10void g();
11void f() {
12  // CHECK-DIAG: =1=
13  // CHECK: =1=
14  fprintf(stderr, "=1=\n");
15  ((void (*)(void))g)();
16  // CHECK-DIAG: =2=
17  // CHECK: =2=
18  fprintf(stderr, "=2=\n");
19  // CFI-DIAG: runtime error: control flow integrity check for type 'void (int)' failed during indirect function call
20  // CFI-DIAG-NEXT: note: g() defined here
21  ((void (*)(int))g)(42); // UB here
22  // CHECK-DIAG: =3=
23  // CHECK-NOT: =3=
24  fprintf(stderr, "=3=\n");
25}
26#else
27void f();
28void g() {
29}
30
31int main() {
32  f();
33}
34#endif
35