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 main(void)29main (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