test/tls/tst-tls1.c

   1 /* glibc test for TLS in ld.so.  */
   2 #undef _LIBC
   3 #include <stdio.h>
   4
   5 #include <tls.h>
   6
   7 #ifdef USE_TLS
   8 # include "tls-macros.h"
   9
  10
  11 /* Two common 'int' variables in TLS.  */
  12 COMMON_INT_DEF(foo);
  13 COMMON_INT_DEF(bar);
  14 #endif
  15
  16
  17 #define TEST_FUNCTION do_test ()
  18 static int
  19 do_test (void)
  20 {
  21 #ifdef USE_TLS
  22   int result = 0;
  23   int *ap, *bp;
  24
  25
  26   /* Set the variable using the local exec model.  */
  27   puts ("set bar to 1 (LE)");
  28   ap = TLS_LE (bar);
  29   *ap = 1;
  30
  31
  32   /* Get variables using initial exec model.  */
  33   fputs ("get sum of foo and bar (IE)", stdout);
  34   ap = TLS_IE (foo);
  35   bp = TLS_IE (bar);
  36   printf (" = %d\n", *ap + *bp);
  37   result |= *ap + *bp != 1;
  38   if (*ap != 0)
  39     {
  40       printf ("foo = %d\n", *ap);
  41       result = 1;
  42     }
  43   if (*bp != 1)
  44     {
  45       printf ("bar = %d\n", *bp);
  46       result = 1;
  47     }
  48
  49
  50   /* Get variables using local dynamic model.  */
  51   fputs ("get sum of foo and bar (LD)", stdout);
  52   ap = TLS_LD (foo);
  53   bp = TLS_LD (bar);
  54   printf (" = %d\n", *ap + *bp);
  55   result |= *ap + *bp != 1;
  56   if (*ap != 0)
  57     {
  58       printf ("foo = %d\n", *ap);
  59       result = 1;
  60     }
  61   if (*bp != 1)
  62     {
  63       printf ("bar = %d\n", *bp);
  64       result = 1;
  65     }
  66
  67
  68   /* Get variables using generic dynamic model.  */
  69   fputs ("get sum of foo and bar (GD)", stdout);
  70   ap = TLS_GD (foo);
  71   bp = TLS_GD (bar);
  72   printf (" = %d\n", *ap + *bp);
  73   result |= *ap + *bp != 1;
  74   if (*ap != 0)
  75     {
  76       printf ("foo = %d\n", *ap);
  77       result = 1;
  78     }
  79   if (*bp != 1)
  80     {
  81       printf ("bar = %d\n", *bp);
  82       result = 1;
  83     }
  84
  85   return result;
  86 #else
  87   return 0;
  88 #endif
  89 }
  90
  91
  92 #include "../test-skeleton.c"