elf/tst-tls3.c

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