test/tls/tst-tlsmod4.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(baz);
  10
  11
  12 int
  13 in_dso (int n, int *caller_bazp)
  14 {
  15   int *bazp;
  16   int result = 0;
  17
  18   puts ("foo");                 /* Make sure PLT is used before macros.  */
  19   __asm__ ("" ::: "memory");
  20
  21   bazp = TLS_GD (baz);
  22
  23   if (caller_bazp != NULL && bazp != caller_bazp)
  24     {
  25       printf ("callers address of baz differs: %p vs %p\n", caller_bazp, bazp);
  26       result = 1;
  27     }
  28   else if (*bazp != n)
  29     {
  30       printf ("baz != %d\n", n);
  31       result = 1;
  32     }
  33
  34   *bazp = 16;
  35
  36   return result;
  37 }
  38 #endif