gold/testsuite/gc_orphan_section_test.cc

   1 // gc_orphan_section_test.cc -- a test case for gold
   2
   3 // Copyright (C) 2010-2019 Free Software Foundation, Inc.
   4 // Written by Sriraman Tallam <tmsriram@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 goal of this program is to verify if garbage collection does not
  24 // discard orphan sections when references to them through __start_XXX
  25 // and __stop_XXX are present.  Here section _foo must not be gc'ed but
  26 // _boo should be gc'ed.
  27
  28 extern const int *__start__foo;
  29 int foo __attribute__((__section__("_foo"))) = 1;
  30 int boo __attribute__((__section__("_boo"))) = 1;
  31
  32 int main()
  33 {
  34   return *__start__foo;
  35 }
  36