// RUN: %clangxx_cfi_dso -DSHARED_LIB %s -fPIC -shared -o %t-so.so // RUN: %clangxx_cfi_dso %s -o %t %t-so.so && %expect_crash %t 2>&1 | FileCheck %s // RUN: %clangxx_cfi_dso_diag -g -DSHARED_LIB %s -fPIC -shared -o %t2-so.so // RUN: %clangxx_cfi_dso_diag -g %s -o %t2 %t2-so.so && %t2 2>&1 | FileCheck %s --check-prefix=CFI-DIAG #include <stdio.h> #ifdef SHARED_LIB void g(); void f() { // CHECK-DIAG: =1= // CHECK: =1= fprintf(stderr, "=1=\n"); ((void (*)(void))g)(); // CHECK-DIAG: =2= // CHECK: =2= fprintf(stderr, "=2=\n"); // CFI-DIAG: runtime error: control flow integrity check for type 'void (int)' failed during indirect function call // CFI-DIAG-NEXT: note: g() defined here ((void (*)(int))g)(42); // UB here // CHECK-DIAG: =3= // CHECK-NOT: =3= fprintf(stderr, "=3=\n"); } #else void f(); void g() { } int main() { f(); } #endif