elf/tst-tlsmod2.c

   1 #include <stdio.h>
   2
   3 #include <tls.h>
   4
   5 #include "tls-macros.h"
   6
   7
   8 COMMON_INT_DEF(foo);
   9
  10
  11 int
  12 in_dso (int n, int *caller_foop)
  13 {
  14   int *foop;
  15   int result = 0;
  16
  17   puts ("foo");                 /* Make sure PLT is used before macros.  */
  18   asm ("" ::: "memory");
  19
  20   foop = TLS_GD (foo);
  21
  22   if (caller_foop != NULL && foop != caller_foop)
  23     {
  24       printf ("callers address of foo differs: %p vs %p\n", caller_foop, foop);
  25       result = 1;
  26     }
  27   else if (*foop != n)
  28     {
  29       printf ("foo != %d\n", n);
  30       result = 1;
  31     }
  32
  33   *foop = 16;
  34
  35   return result;
  36 }