1  /* Test STT_GNU_IFUNC symbols:
       2  
       3     1. Direct function call.
       4     2. Function pointer.
       5     3. Visibility without override.
       6   */
       7  
       8  #include <stdlib.h>
       9  
      10  int ret_foo;
      11  int ret_foo_hidden;
      12  int ret_foo_protected;
      13  
      14  extern int foo (void);
      15  extern int foo_protected (void);
      16  
      17  #ifndef FOO_P
      18  typedef int (*foo_p) (void);
      19  #endif
      20  
      21  foo_p foo_ptr = foo;
      22  foo_p foo_procted_ptr = foo_protected;
      23  
      24  extern foo_p get_foo_p (void);
      25  extern foo_p get_foo_hidden_p (void);
      26  extern foo_p get_foo_protected_p (void);
      27  
      28  int
      29  main (void)
      30  {
      31    foo_p p;
      32    
      33    if (foo_ptr != foo)
      34      abort ();
      35    if (foo () != -1)
      36      abort ();
      37    if ((*foo_ptr) () != -1)
      38      abort ();
      39  
      40    if (foo_procted_ptr != foo_protected)
      41      abort ();
      42    if (foo_protected () != 0)
      43      abort ();
      44    if ((*foo_procted_ptr) () != 0)
      45      abort ();
      46  
      47    p = get_foo_p ();
      48    if (p != foo)
      49      abort ();
      50    if (ret_foo != -1 || (*p) () != ret_foo)
      51      abort ();
      52  
      53    p = get_foo_hidden_p ();
      54    if (ret_foo_hidden != 1 || (*p) () != ret_foo_hidden)
      55      abort ();
      56  
      57    p = get_foo_protected_p ();
      58    if (p != foo_protected)
      59      abort ();
      60    if (ret_foo_protected != 0 || (*p) () != ret_foo_protected)
      61      abort ();
      62  
      63    return 0;
      64  }