gold/testsuite/copy_test_v1.cc

   1 // copy_test_v1.cc -- test copy relocs 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 // This source file is used for testing the --incremental option.
  24 // The object built from this source will be incrementally updated
  25 // with the correct object built from copy_test.cc.
  26
  27 #include <cassert>
  28 #include <stdint.h>
  29
  30 // Misalign the BSS section.
  31 static char c;
  32
  33 // From copy_test_1.cc.
  34 extern char b;
  35
  36 // From copy_test_2.cc.
  37 extern long long l;
  38 extern int ip; // protected visibility; may not be copied
  39
  40 int* ipp = &ip;
  41
  42 int
  43 main()
  44 {
  45   assert(c == 0);
  46   assert(b == 1);
  47   assert(l == 3);       // Deliberately incorrect.
  48   assert((reinterpret_cast<uintptr_t>(&l) & 0x7) == 0);
  49   assert(*ipp == 3);
  50   return 0;
  51 }