gcc/testsuite/gcc.dg/tls/alias-1.c

   1 /* { dg-do link } */
   2 /* { dg-require-alias "" } */
   3 /* { dg-require-visibility "" } */
   4 /* Test that encode_section_info handles the change from externally
   5    defined to locally defined (via hidden).   Extracted from glibc.  */
   6
   7 struct __res_state {
   8         char x[123];
   9 };
  10
  11 extern __thread struct __res_state bar
  12   __attribute__ ((tls_model ("initial-exec")));
  13
  14 int main()
  15 {
  16   bar.x[0] = 0;
  17   return 0;
  18 }
  19
  20 __thread struct __res_state foo;
  21 extern __thread struct __res_state bar
  22   __attribute__ ((alias ("foo")))
  23   __attribute__ ((visibility ("hidden")));