1 | // RUN: %clang -o %t1 %s |
2 | // RUN: %t1 2>&1 | FileCheck --check-prefix=NCFI %s |
3 | |
4 | // RUN: %clang_cfi -o %t2 %s |
5 | // RUN: %expect_crash %t2 2>&1 | FileCheck --check-prefix=CFI %s |
6 | |
7 | // RUN: %clang_cfi_diag -g -o %t3 %s |
8 | // RUN: %t3 2>&1 | FileCheck --check-prefix=CFI-DIAG %s |
9 | |
10 | #include <stdio.h> |
11 | |
12 | void f() { |
13 | } |
14 | |
15 | int main() { |
16 | // CFI: 1 |
17 | // NCFI: 1 |
18 | fprintf(stderr, format: "1\n" ); |
19 | |
20 | // CFI-DIAG: runtime error: control flow integrity check for type 'void (int)' failed during indirect function call |
21 | // CFI-DIAG: f defined here |
22 | ((void (*)(int))f)(42); // UB here |
23 | |
24 | // CFI-NOT: 2 |
25 | // NCFI: 2 |
26 | fprintf(stderr, format: "2\n" ); |
27 | } |
28 | |