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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 | |
10 | void g(); | |
11 | void 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 | |
27 | void f(); | |
28 | void g() { | |
29 | } | |
30 | ||
31 | int main() { | |
32 | f(); | |
33 | } | |
34 | #endif |