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      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 }
     65