elf/tst-tls2.c

   1 /* glibc test for TLS in ld.so.  */
   2 #include <stdio.h>
   3
   4 #include "tls-macros.h"
   5
   6
   7 /* Two 'int' variables in TLS.  */
   8 VAR_INT_DEF(foo);
   9 VAR_INT_DEF(bar);
  10
  11
  12 #define TEST_FUNCTION do_test ()
  13 static int
  14 do_test (void)
  15 {
  16   int result = 0;
  17   int *ap, *bp;
  18
  19
  20   /* Set the variable using the local exec model.  */
  21   puts ("set bar to 1 (LE)");
  22   ap = TLS_LE (bar);
  23   *ap = 1;
  24
  25
  26   /* Get variables using initial exec model.  */
  27   fputs ("get sum of foo and bar (IE)", stdout);
  28   ap = TLS_IE (foo);
  29   bp = TLS_IE (bar);
  30   printf (" = %d\n", *ap + *bp);
  31   result |= *ap + *bp != 1;
  32   if (*ap != 0)
  33     {
  34       printf ("foo = %d\n", *ap);
  35       result = 1;
  36     }
  37   if (*bp != 1)
  38     {
  39       printf ("bar = %d\n", *bp);
  40       result = 1;
  41     }
  42
  43
  44   /* Get variables using local dynamic model.  */
  45   fputs ("get sum of foo and bar (LD)", stdout);
  46   ap = TLS_LD (foo);
  47   bp = TLS_LD (bar);
  48   printf (" = %d\n", *ap + *bp);
  49   result |= *ap + *bp != 1;
  50   if (*ap != 0)
  51     {
  52       printf ("foo = %d\n", *ap);
  53       result = 1;
  54     }
  55   if (*bp != 1)
  56     {
  57       printf ("bar = %d\n", *bp);
  58       result = 1;
  59     }
  60
  61
  62   /* Get variables using generic dynamic model.  */
  63   fputs ("get sum of foo and bar (GD)", stdout);
  64   ap = TLS_GD (foo);
  65   bp = TLS_GD (bar);
  66   printf (" = %d\n", *ap + *bp);
  67   result |= *ap + *bp != 1;
  68   if (*ap != 0)
  69     {
  70       printf ("foo = %d\n", *ap);
  71       result = 1;
  72     }
  73   if (*bp != 1)
  74     {
  75       printf ("bar = %d\n", *bp);
  76       result = 1;
  77     }
  78
  79   return result;
  80 }
  81
  82
  83 #include "../test-skeleton.c"