gold/testsuite/ifuncmain5.c

   1 /* Test STT_GNU_IFUNC symbols with dynamic function pointer only.  */
   2
   3 #include <stdlib.h>
   4
   5 extern int foo (void);
   6 extern int foo_protected (void);
   7
   8 typedef int (*foo_p) (void);
   9
  10 extern foo_p __attribute__ ((noinline)) get_foo (void);
  11 extern foo_p __attribute__ ((noinline)) get_foo_protected (void);
  12
  13 foo_p
  14 __attribute__ ((noinline))
  15 get_foo (void)
  16 {
  17   return foo;
  18 }
  19
  20 foo_p
  21 __attribute__ ((noinline))
  22 get_foo_protected (void)
  23 {
  24   return foo_protected;
  25 }
  26
  27 int
  28 main (void)
  29 {
  30   foo_p p;
  31
  32   p = get_foo ();
  33   if ((*p) () != -1)
  34     abort ();
  35
  36   p = get_foo_protected ();
  37   if ((*p) () != 0)
  38     abort ();
  39
  40   return 0;
  41 }