gold/testsuite/weak_alias_test_1.cc

   1 // weak_alias_test_1.cc -- test weak aliases for gold
   2
   3 // Copyright (C) 2008-2021 Free Software Foundation, Inc.
   4 // Written by Ian Lance Taylor <iant@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 // Define a weak symbol.
  24
  25 extern int weak_symbol __attribute__ ((weak));
  26 int weak_symbol = 1;
  27
  28 // Define a strong symbol with a weak alias.
  29
  30 int strong_aliased = 2;
  31 extern int weak_aliased __attribute__ ((weak, alias ("strong_aliased")));
  32
  33 // And another one.
  34
  35 int strong_aliased_2 = 5;
  36 extern int weak_aliased_2 __attribute__ ((weak, alias ("strong_aliased_2")));
  37
  38 // And a third.
  39
  40 int strong_aliased_3 = 7;
  41 extern int weak_aliased_3 __attribute__ ((weak, alias ("strong_aliased_3")));
  42
  43 // And a fourth.
  44
  45 int strong_aliased_4 = 8;
  46 extern int weak_aliased_4 __attribute__ ((weak, alias ("strong_aliased_4")));
  47
  48 // We want a symbol whose name is the same length as "strong_symbol",
  49 // so that weak_symbol here lines up with weak_symbol in
  50 // weak_alias_test_2.so.
  51
  52 int Strong_Symbol = 101;