1  /* { dg-do run { target cet } } */
       2  /* { dg-options "-O2 -fcf-protection -mshstk" } */
       3  
       4  void _exit(int status) __attribute__ ((__noreturn__));
       5  
       6  #ifdef __x86_64__
       7  # define incssp(x) __builtin_ia32_incsspq (x)
       8  # define rdssp() __builtin_ia32_rdsspq ()
       9  #else
      10  # define incssp(x) __builtin_ia32_incsspd (x)
      11  # define rdssp() __builtin_ia32_rdsspd ()
      12  #endif
      13  
      14  static void
      15  __attribute__ ((noinline, noclone))
      16  test (unsigned long frames)
      17  {
      18    unsigned long ssp;
      19    ssp = rdssp ();
      20    if (ssp != 0)
      21      {
      22        unsigned long tmp = frames;
      23        while (tmp > 255)
      24  	{
      25  	  incssp (tmp);
      26  	  tmp -= 255;
      27  	}
      28        incssp (tmp);
      29      }
      30    /* We must call _exit since shadow stack is incorrect now.  */
      31    _exit (0);
      32  }
      33  
      34  int
      35  main ()
      36  {
      37    test (1);
      38    return 0;
      39  }