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      1 /* tls_test_c.c -- test TLS common symbol
      2 
      3    Copyright (C) 2008-2014 Free Software Foundation, Inc.
      4    Written by Ian Lance Taylor <iant (at) google.com>
      5 
      6    This file is part of gold.
      7 
      8    This program is free software; you can redistribute it and/or modify
      9    it under the terms of the GNU General Public License as published by
     10    the Free Software Foundation; either version 3 of the License, or
     11    (at your option) any later version.
     12 
     13    This program is distributed in the hope that it will be useful,
     14    but WITHOUT ANY WARRANTY; without even the implied warranty of
     15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16    GNU General Public License for more details.
     17 
     18    You should have received a copy of the GNU General Public License
     19    along with this program; if not, write to the Free Software
     20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     21    MA 02110-1301, USA.  */
     22 
     23 /* The only way I know to get gcc to generate a TLS common symbol is
     24    to use a C file and an OpenMP directive.  */
     25 
     26 #include "config.h"
     27 #include <stdio.h>
     28 
     29 #define CHECK_EQ_OR_RETURN(var, expected)				\
     30   do									\
     31     {									\
     32       if ((var) != (expected))						\
     33 	{								\
     34 	  printf(#var ": expected %d, found %d\n", expected, var);	\
     35 	  return 0;							\
     36 	}								\
     37     }									\
     38   while (0)
     39 
     40 #ifdef HAVE_OMP_SUPPORT
     41 int v7;
     42 #pragma omp threadprivate (v7)
     43 #endif
     44 
     45 int t11(void);
     46 int t11_last(void);
     47 
     48 int
     49 t11(void)
     50 {
     51 #ifdef HAVE_OMP_SUPPORT
     52   CHECK_EQ_OR_RETURN(v7, 0);
     53   v7 = 70;
     54 #endif
     55   return 1;
     56 }
     57 
     58 int
     59 t11_last(void)
     60 {
     61 #ifdef HAVE_OMP_SUPPORT
     62   CHECK_EQ_OR_RETURN(v7, 70);
     63 #endif
     64   return 1;
     65 }
     66