elf/ifuncmod5.c

   1 /* Test STT_GNU_IFUNC symbols without direct function call.  */
   2 #include "ifunc-sel.h"
   3
   4 int global __attribute__ ((visibility ("protected"))) = -1;
   5
   6 static int
   7 one (void)
   8 {
   9   return 1;
  10 }
  11
  12 static int
  13 minus_one (void)
  14 {
  15   return -1;
  16 }
  17
  18 static int
  19 zero (void)
  20 {
  21   return 0;
  22 }
  23
  24 void * foo_ifunc (void) __asm__ ("foo");
  25 __asm__(".type foo, %gnu_indirect_function");
  26
  27 void *
  28 foo_ifunc (void)
  29 {
  30   return ifunc_sel (one, minus_one, zero);
  31 }
  32
  33 void * foo_hidden_ifunc (void) __asm__ ("foo_hidden");
  34 __asm__(".type foo_hidden, %gnu_indirect_function");
  35
  36 void *
  37 foo_hidden_ifunc (void)
  38 {
  39   return ifunc_sel (minus_one, one, zero);
  40 }
  41
  42 void * foo_protected_ifunc (void) __asm__ ("foo_protected");
  43 __asm__(".type foo_protected, %gnu_indirect_function");
  44
  45 void *
  46 foo_protected_ifunc (void)
  47 {
  48   return ifunc_sel (one, zero, minus_one);
  49 }
  50
  51 /* Test hidden indirect function.  */
  52 __asm__(".hidden foo_hidden");
  53
  54 /* Test protected indirect function.  */
  55 __asm__(".protected foo_protected");