compiler-rt/test/cfi/cross-dso-diagnostic.cpp

   1 // Check that cross-DSO diagnostics print the names of both modules
   2
   3 // RUN: %clangxx_cfi_diag -g -DSHARED_LIB -fPIC -shared -o %dynamiclib %s %ld_flags_rpath_so
   4 // RUN: %clangxx_cfi_diag -g -o %t_exe_suffix %s %ld_flags_rpath_exe
   5 // RUN: %t_exe_suffix 2>&1 | FileCheck -DDSONAME=%xdynamiclib_namespec %s
   6
   7 // UNSUPPORTED: target={{.*windows-msvc.*}}
   8 // REQUIRES: cxxabi
   9
  10 #include <dlfcn.h>
  11 #include <stdio.h>
  12
  13 struct S1 {
  14   virtual void f1();
  15 };
  16
  17 #ifdef SHARED_LIB
  18
  19 void S1::f1() {}
  20
  21 __attribute__((visibility("default"))) extern "C"
  22 void* dso_symbol() { return new S1(); }
  23
  24 #else
  25
  26 int main() {
  27   void* (*fp)(void) =
  28       reinterpret_cast<void*(*)(void)>(dlsym(RTLD_DEFAULT, "dso_symbol"));
  29   if (!fp) {
  30     perror("failed to resolve dso_symbol");
  31     return 1;
  32   }
  33
  34   // CHECK: runtime error: control flow integrity check for type 'void *()' failed during indirect function call
  35   // CHECK: dso_symbol defined here
  36   // CHECK: check failed in {{.*}}_exe_suffix, destination function located in {{.*}}[[DSONAME]]
  37   void *S = fp(); // trigger cfi-icall failure
  38
  39   // CHECK: runtime error: control flow integrity check for type 'S1' failed during cast to unrelated type
  40   // CHECK: invalid vtable
  41   // CHECK: check failed in {{.*}}_exe_suffix, vtable located in {{.*}}[[DSONAME]]
  42   S1 *Scast = reinterpret_cast<S1*>(S); // trigger cfi-unrelated-cast failure
  43
  44   return 0;
  45 }
  46
  47 #endif // SHARED_LIB