| 1 | // RUN: %clangxx_cfi_dso -DSHARED_LIB %s -fPIC -shared -o %dynamiclib %ld_flags_rpath_so |
| 2 | // RUN: %clangxx_cfi_dso %s -o %t %ld_flags_rpath_exe && %expect_crash %t 2>&1 | FileCheck %s |
| 3 | |
| 4 | // RUN: %clangxx_cfi_dso_diag -g -DSHARED_LIB %s -fPIC -shared -o %dynamiclib %ld_flags_rpath_so |
| 5 | // RUN: %clangxx_cfi_dso_diag -g %s -o %t %ld_flags_rpath_exe && %t 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 |
| 35 | |