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      1 /* Test STT_GNU_IFUNC symbols in PIE:
      2 
      3    1. Direct function call.
      4    2. Function pointer.
      5    3. Reference from a shared library.
      6  */
      7 
      8 #include <stdlib.h>
      9 #include "ifunc-sel.h"
     10 
     11 typedef int (*foo_p) (void);
     12 extern foo_p foo_ptr;
     13 
     14 static int
     15 one (void)
     16 {
     17   return -30;
     18 }
     19 
     20 void * foo_ifunc (void) __asm__ ("foo");
     21 __asm__(".type foo, %gnu_indirect_function");
     22 
     23 void *
     24 foo_ifunc (void)
     25 {
     26   return ifunc_one (one);
     27 }
     28 
     29 extern int foo (void);
     30 extern foo_p get_foo (void);
     31 extern foo_p get_foo_p (void);
     32 
     33 foo_p my_foo_ptr = foo;
     34 
     35 int
     36 main (void)
     37 {
     38   foo_p p;
     39 
     40   p = get_foo ();
     41   if (p != foo)
     42     abort ();
     43   if ((*p) () != -30)
     44     abort ();
     45 
     46   p = get_foo_p ();
     47   if (p != foo)
     48     abort ();
     49   if ((*p) () != -30)
     50     abort ();
     51 
     52   if (foo_ptr != foo)
     53     abort ();
     54   if (my_foo_ptr != foo)
     55     abort ();
     56   if ((*foo_ptr) () != -30)
     57     abort ();
     58   if ((*my_foo_ptr) () != -30)
     59     abort ();
     60   if (foo () != -30)
     61     abort ();
     62 
     63   return 0;
     64 }
     65