elf/tst-tlsmod2.c

   1 #include <stdio.h>
   2
   3 #include <tls.h>
   4
   5 #ifdef USE_TLS
   6 #include "tls-macros.h"
   7
   8
   9 COMMON_INT_DEF(foo);
  10
  11
  12 int
  13 in_dso (int n, int *caller_foop)
  14 {
  15   int *foop;
  16   int result = 0;
  17
  18   puts ("foo");                 /* Make sure PLT is used before macros.  */
  19   asm ("" ::: "memory");
  20
  21   foop = TLS_GD (foo);
  22
  23   if (caller_foop != NULL && foop != caller_foop)
  24     {
  25       printf ("callers address of foo differs: %p vs %p\n", caller_foop, foop);
  26       result = 1;
  27     }
  28   else if (*foop != n)
  29     {
  30       printf ("foo != %d\n", n);
  31       result = 1;
  32     }
  33
  34   *foop = 16;
  35
  36   return result;
  37 }
  38 #endif