elf/tst-tlsmod1.c

   1 #include <stdio.h>
   2
   3 #include <tls.h>
   4
   5 #ifdef USE_TLS
   6 #include "tls-macros.h"
   7
   8
   9 /* One define int variable, two externs.  */
  10 COMMON_INT_DEF(foo);
  11 VAR_INT_DEF(bar);
  12 VAR_INT_DECL(baz);
  13 #endif
  14
  15 extern int in_dso (void);
  16
  17 int
  18 in_dso (void)
  19 {
  20   int result = 0;
  21 #ifdef USE_TLS
  22   int *ap, *bp, *cp;
  23
  24   /* Get variables using initial exec model.  */
  25   fputs ("get sum of foo and bar (IE)", stdout);
  26   asm ("" ::: "memory");
  27   ap = TLS_IE (foo);
  28   bp = TLS_IE (bar);
  29   printf (" = %d\n", *ap + *bp);
  30   result |= *ap + *bp != 3;
  31   if (*ap != 1)
  32     {
  33       printf ("foo = %d\n", *ap);
  34       result = 1;
  35     }
  36   if (*bp != 2)
  37     {
  38       printf ("bar = %d\n", *bp);
  39       result = 1;
  40     }
  41
  42
  43   /* Get variables using generic dynamic model.  */
  44   fputs ("get sum of foo and bar and baz (GD)", stdout);
  45   ap = TLS_GD (foo);
  46   bp = TLS_GD (bar);
  47   cp = TLS_GD (baz);
  48   printf (" = %d\n", *ap + *bp + *cp);
  49   result |= *ap + *bp + *cp != 6;
  50   if (*ap != 1)
  51     {
  52       printf ("foo = %d\n", *ap);
  53       result = 1;
  54     }
  55   if (*bp != 2)
  56     {
  57       printf ("bar = %d\n", *bp);
  58       result = 1;
  59     }
  60   if (*cp != 3)
  61     {
  62       printf ("baz = %d\n", *cp);
  63       result = 1;
  64     }
  65 #endif
  66
  67   return result;
  68 }