elf/tst-tlsmod17a.c

   1 #include <stdio.h>
   2
   3 #ifndef N
   4 #define N 0
   5 #endif
   6 #define CONCAT1(s, n) s##n
   7 #define CONCAT(s, n) CONCAT1(s, n)
   8
   9 __thread int CONCAT (v, N) = 4;
  10
  11 int
  12 CONCAT (tlsmod17a, N) (void)
  13 {
  14   int *p = &CONCAT (v, N);
  15   /* GCC assumes &var is never NULL, add optimization barrier.  */
  16   asm volatile ("" : "+r" (p));
  17   if (p == NULL || *p != 4)
  18     {
  19       printf ("fail %d %p\n", N, p);
  20       return 1;
  21     }
  22   return 0;
  23 }