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
f()10 void f() {
11 }
12 #else
13 void f();
main()14 int main() {
15 // CHECK-DIAG: =1=
16 // CHECK: =1=
17 fprintf(stderr, "=1=\n");
18 ((void (*)(void))f)();
19 // CHECK-DIAG: =2=
20 // CHECK: =2=
21 fprintf(stderr, "=2=\n");
22 // CFI-DIAG: runtime error: control flow integrity check for type 'void (int)' failed during indirect function call
23 // CFI-DIAG-NEXT: note: f() defined here
24 ((void (*)(int))f)(42); // UB here
25 // CHECK-DIAG: =3=
26 // CHECK-NOT: =3=
27 fprintf(stderr, "=3=\n");
28 }
29 #endif
30