gcc/testsuite/g++.dg/eh/forced3.C

   1 // HP-UX libunwind.so doesn't provide _UA_END_OF_STACK.
   2 // { dg-do run { xfail "ia64-hp-hpux11.*" } }
   3 // { dg-require-effective-target c++14_down }
   4
   5 // Test that forced unwinding calls std::unexpected going
   6 // through a nothrow function.
   7
   8 #include <unwind.h>
   9 #include <stdlib.h>
  10 #include <exception>
  11 #include <string.h>
  12
  13 static _Unwind_Reason_Code
  14 force_unwind_stop (int version, _Unwind_Action actions,
  15                    _Unwind_Exception_Class exc_class,
  16                    struct _Unwind_Exception *exc_obj,
  17                    struct _Unwind_Context *context,
  18                    void *stop_parameter)
  19 {
  20   if (actions & _UA_END_OF_STACK)
  21     abort ();
  22   return _URC_NO_REASON;
  23 }
  24
  25 static void __attribute__((noreturn))
  26 force_unwind ()
  27 {
  28   _Unwind_Exception *exc = new _Unwind_Exception;
  29   // exception_class might not be a scalar.
  30   memset (&exc->exception_class, 0, sizeof (exc->exception_class));
  31   exc->exception_cleanup = 0;
  32
  33 #ifndef __USING_SJLJ_EXCEPTIONS__
  34   _Unwind_ForcedUnwind (exc, force_unwind_stop, 0);
  35 #else
  36   _Unwind_SjLj_ForcedUnwind (exc, force_unwind_stop, 0);
  37 #endif
  38
  39   abort ();
  40 }
  41
  42 static void
  43 handle_unexpected ()
  44 {
  45   exit (0);
  46 }
  47
  48 static void
  49 doit () throw()
  50 {
  51   force_unwind ();
  52 }
  53
  54 int main()
  55 {
  56   std::set_unexpected (handle_unexpected); // { dg-warning "deprecated" "" { target c++11 } }
  57   doit ();
  58   abort ();
  59 }