1  /* { dg-do run } */
       2  /* { dg-require-effective-target fstack_protector } */
       3  /* { dg-options "-fstack-protector-all -O2" } */
       4  
       5  extern volatile long *stack_chk_guard_ptr;
       6  
       7  void __attribute__ ((noipa))
       8  f (void)
       9  {
      10    volatile int x;
      11    /* Munging the contents of __stack_chk_guard should trigger a
      12       stack-smashing failure for this function.  */
      13    *stack_chk_guard_ptr += 1;
      14  }
      15  
      16  #define CHECK(REG) "\tcmp\tx0, " #REG "\n\tbeq\t1f\n"
      17  
      18  asm (
      19  "	.pushsection .data\n"
      20  "	.align	3\n"
      21  "stack_chk_guard_ptr:\n"
      22  #if __ILP32__
      23  "	.word	__stack_chk_guard\n"
      24  #else
      25  "	.xword	__stack_chk_guard\n"
      26  #endif
      27  "	.weak	__stack_chk_guard\n"
      28  "__stack_chk_guard:\n"
      29  "	.word	0xdead4321\n"
      30  "	.word	0xbeef8765\n"
      31  "	.text\n"
      32  "	.type	__stack_chk_fail, %function\n"
      33  "__stack_chk_fail:\n"
      34  "	mov	x0, #0\n"
      35  "	b	exit\n"
      36  "	.size	__stack_chk_fail, .-__stack_chk_fail\n"
      37  "	.popsection"
      38  );
      39  
      40  int
      41  main (void)
      42  {
      43    f ();
      44    __builtin_abort ();
      45  }