gold/testsuite/dyn_weak_ref_1.c

   1 // dyn_weak_ref_1.c -- test that a weak ref remains weak in output when
   2 // there is a DSO with the same weak ref.
   3
   4 // Copyright (C) 2010-2019 Free Software Foundation, Inc.
   5 // Written by Doug Kwan <dougkwan@google.com>.
   6
   7 // This file is part of gold.
   8
   9 // This program is free software; you can redistribute it and/or modify
  10 // it under the terms of the GNU General Public License as published by
  11 // the Free Software Foundation; either version 3 of the License, or
  12 // (at your option) any later version.
  13
  14 // This program is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18
  19 // You should have received a copy of the GNU General Public License
  20 // along with this program; if not, write to the Free Software
  21 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  22 // MA 02110-1301, USA.
  23
  24 // We test that we correctly deal with a weak reference to from both
  25 // a DSO and a weak reference to the same symbol in an executable.  The
  26 // symbol should remains weak.
  27
  28 // This source is used to build an DSO that references the same weak
  29 // symbol as in a dependent DSO.
  30
  31 extern void weak_ref (void) __attribute__((weak));
  32
  33 void* ptr1 = weak_ref;
  34
  35 int
  36 main (void)
  37 {
  38   return 0;
  39 }