elf/tst-tls2.c

   1 /* glibc test for TLS in ld.so.  */
   2 #include <stdio.h>
   3
   4 #include <tls.h>
   5
   6 #include "tls-macros.h"
   7
   8
   9 /* Two 'int' variables in TLS.  */
  10 VAR_INT_DEF(foo);
  11 VAR_INT_DEF(bar);
  12
  13
  14 #define TEST_FUNCTION do_test ()
  15 static int
  16 do_test (void)
  17 {
  18   int result = 0;
  19   int *ap, *bp;
  20
  21
  22   /* Set the variable using the local exec model.  */
  23   puts ("set bar to 1 (LE)");
  24   ap = TLS_LE (bar);
  25   *ap = 1;
  26
  27
  28   /* Get variables using initial exec model.  */
  29   fputs ("get sum of foo and bar (IE)", stdout);
  30   ap = TLS_IE (foo);
  31   bp = TLS_IE (bar);
  32   printf (" = %d\n", *ap + *bp);
  33   result |= *ap + *bp != 1;
  34   if (*ap != 0)
  35     {
  36       printf ("foo = %d\n", *ap);
  37       result = 1;
  38     }
  39   if (*bp != 1)
  40     {
  41       printf ("bar = %d\n", *bp);
  42       result = 1;
  43     }
  44
  45
  46   /* Get variables using local dynamic model.  */
  47   fputs ("get sum of foo and bar (LD)", stdout);
  48   ap = TLS_LD (foo);
  49   bp = TLS_LD (bar);
  50   printf (" = %d\n", *ap + *bp);
  51   result |= *ap + *bp != 1;
  52   if (*ap != 0)
  53     {
  54       printf ("foo = %d\n", *ap);
  55       result = 1;
  56     }
  57   if (*bp != 1)
  58     {
  59       printf ("bar = %d\n", *bp);
  60       result = 1;
  61     }
  62
  63
  64   /* Get variables using generic dynamic model.  */
  65   fputs ("get sum of foo and bar (GD)", stdout);
  66   ap = TLS_GD (foo);
  67   bp = TLS_GD (bar);
  68   printf (" = %d\n", *ap + *bp);
  69   result |= *ap + *bp != 1;
  70   if (*ap != 0)
  71     {
  72       printf ("foo = %d\n", *ap);
  73       result = 1;
  74     }
  75   if (*bp != 1)
  76     {
  77       printf ("bar = %d\n", *bp);
  78       result = 1;
  79     }
  80
  81   return result;
  82 }
  83
  84
  85 #include "../test-skeleton.c"