gold/testsuite/two_file_test_2_v1.cc

   1 // two_file_test_2_v1.cc -- a two file test case for gold, file 2 of 2
   2
   3 // Copyright (C) 2006-2017 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 is an alternate version of the source file two_file_test_2.cc,
  24 // used to test incremental linking.  We build a binary first using this
  25 // source file, then do an incremental link with the primary version of
  26 // the file.
  27
  28 // This tests references between files.  This is file 2, and
  29 // two_file_test_1.cc is file 1.  See file 1 for details.
  30
  31 #include "two_file_test.h"
  32
  33 // 1  Code in file 1 calls code in file 2.
  34
  35 int
  36 t1_2()
  37 {
  38   return 0;
  39 }
  40
  41 bool
  42 t1a()
  43 {
  44   return t1_2() == 0;
  45 }
  46
  47 // 2  Code in file 1 refers to global data in file 2.
  48
  49 int v2 = 1;
  50
  51 // 3 Code in file 1 referes to common symbol in file 2.  This is
  52 // initialized at runtime to 789.
  53
  54 int v3;
  55
  56 // 4  Code in file 1 refers to offset within global data in file 2.
  57
  58 char v4[] = "World, hello";
  59
  60 // 5 Code in file 1 refers to offset within common symbol in file 2.
  61 // This is initialized at runtime to a copy of v4.
  62
  63 char v5[13];
  64
  65 // 6  Data in file 1 refers to global data in file 2.  This reuses v2.
  66
  67 // 7  Data in file 1 refers to common symbol in file 2.  This reuses v3.
  68
  69 // 8 Data in file 1 refers to offset within global data in file 2.
  70 // This reuses v4.
  71
  72 // 9 Data in file 1 refers to offset within common symbol in file 2.
  73 // This reuses v5.
  74
  75 // 10 Data in file 1 refers to function in file 2.
  76
  77 int
  78 f10()
  79 {
  80   return 0;
  81 }
  82
  83 // 11 Pass function pointer from file 1 to file 2.
  84
  85 int
  86 f11b(int (*pfn)())
  87 {
  88   return (*pfn)();
  89 }
  90
  91 // 12 Compare address of function for equality in both files.
  92
  93 bool
  94 (*f12())()
  95 {
  96   return &t12;
  97 }
  98
  99 // 13 Compare address of inline function for equality in both files.
 100
 101 void
 102 (*f13())()
 103 {
 104   return &f13i;
 105 }
 106
 107 // 14 Compare string constants in file 1 and file 2.
 108
 109 const char*
 110 f14()
 111 {
 112   return TEST_STRING_CONSTANT;
 113 }
 114
 115 // 15 Compare wide string constants in file 1 and file 2.
 116
 117 const wchar_t*
 118 f15()
 119 {
 120   return TEST_WIDE_STRING_CONSTANT;
 121 }
 122
 123 // 17 File 1 checks array of string constants defined in file 2.
 124
 125 const char* t17data[T17_COUNT] =
 126 {
 127   "0", "1", "2", "3", "4"
 128 };
 129
 130 // 18 File 1 checks string constants referenced directly in file 2.
 131
 132 const char*
 133 f18(int i)
 134 {
 135   switch (i)
 136     {
 137     case 0:
 138       return "0";
 139     case 1:
 140       return "1";
 141     case 2:
 142       return "2";
 143     case 3:
 144       return "3";
 145     case 4:
 146       return "4";
 147     default:
 148       return 0;
 149     }
 150 }