gold/testsuite/plugin_common_test_2.c

   1 /* plugin_common_test_2.c -- test common symbol handling in plugins
   2
   3    Copyright (C) 2010-2017 Free Software Foundation, Inc.
   4    Written by Cary Coutant <ccoutant@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    This is a test of common symbols in plugin objects.  C1-C5 test
  24    various combinations of tentative definitions, extern declarations,
  25    and definitions.  */
  26
  27 #include <assert.h>
  28
  29 int c1 __attribute__((aligned (8)));
  30 extern int c2;
  31 int c3;
  32 int c4 = 40;
  33 int c5;
  34
  35 extern void foo (void);
  36
  37 void
  38 foo (void)
  39 {
  40   c1 = 10;
  41   c2 = 20;
  42   c3 = 30;
  43
  44   assert (c5 == 50);
  45 }