New upstream version 1.12.0+dfsg1

[rustc.git] / src / compiler-rt / test / cfi / cross-dso / icall / icall-from-dso.cpp

// 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