gold/testsuite/two_file_test_1.cc

   1 // two_file_test_1.cc -- a two file test case for gold, file 1 of 2
   2
   3 // Copyright 2006, 2007 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 tests references between files.  This is file 1, and
  24 // two_file_test_2.cc is file 2.  We test in several different ways:
  25
  26 // Files 1 and 2 linked together in executable.
  27 // File 1 in executable, file 2 in shared library.
  28 // File 1 in shared library, file 2 in executable.
  29 // Files 1 and 2 linked together in shared library.
  30 // Files 1 and 2 in different shared libraries.
  31
  32 // We test the following cases.
  33
  34 // 1  Code in file 1 calls code in file 2.
  35 // 2  Code in file 1 refers to global data in file 2.
  36 // 3  Code in file 1 referes to common symbol in file 2.
  37 // 4  Code in file 1 refers to offset within global data in file 2.
  38 // 5  Code in file 1 refers to offset within common symbol in file 2.
  39 // 6  Data in file 1 refers to global data in file 2.
  40 // 7  Data in file 1 refers to common symbol in file 2.
  41 // 8  Data in file 1 refers to offset within global data in file 2.
  42 // 9  Data in file 1 refers to offset within common symbol in file 2.
  43 // 10 Data in file 1 refers to function in file 2.
  44 // 11 Pass function pointer from file 1 to file 2.
  45 // 12 Compare address of function for equality in both files.
  46 // 13 Compare address of inline function for equality in both files.
  47 // 14 Compare string constants in file 1 and file 2.
  48
  49 #include "two_file_test.h"
  50
  51 // 1  Code in file 1 calls code in file 2.
  52
  53 bool
  54 t1()
  55 {
  56   return t1_2() == 123;
  57 }
  58
  59 // 2  Code in file 1 refers to global data in file 2.
  60
  61 bool
  62 t2()
  63 {
  64   return v2 == 456;
  65 }
  66
  67 // 3  Code in file 1 referes to common symbol in file 2.
  68
  69 bool
  70 t3()
  71 {
  72   return v3 == 789;
  73 }
  74
  75 // 4  Code in file 1 refers to offset within global data in file 2.
  76
  77 bool
  78 t4()
  79 {
  80   return v4[5] == ',';
  81 }
  82
  83 // 5  Code in file 1 refers to offset within common symbol in file 2.
  84
  85 bool
  86 t5()
  87 {
  88   return v5[7] == 'w';
  89 }
  90
  91 // 6  Data in file 1 refers to global data in file 2.
  92
  93 int* p6 = &v2;
  94
  95 bool
  96 t6()
  97 {
  98   return *p6 == 456;
  99 }
 100
 101 // 7  Data in file 1 refers to common symbol in file 2.
 102
 103 int* p7 = &v3;
 104
 105 bool
 106 t7()
 107 {
 108   return *p7 == 789;
 109 }
 110
 111 // 8  Data in file 1 refers to offset within global data in file 2.
 112
 113 char* p8 = &v4[6];
 114
 115 bool
 116 t8()
 117 {
 118   return *p8 == ' ';
 119 }
 120
 121 // 9  Data in file 1 refers to offset within common symbol in file 2.
 122
 123 char* p9 = &v5[8];
 124
 125 bool
 126 t9()
 127 {
 128   return *p9 == 'o';
 129 }
 130
 131 // 10 Data in file 1 refers to function in file 2.
 132
 133 int (*pfn)() = &f10;
 134
 135 bool
 136 t10()
 137 {
 138   return (*pfn)() == 135;
 139 }
 140
 141 // 11 Pass function pointer from file 1 to file 2.
 142
 143 int
 144 f11a()
 145 {
 146   return 246;
 147 }
 148
 149 bool
 150 t11()
 151 {
 152   return f11b(&f11a) == 246;
 153 }
 154
 155 // 12 Compare address of function for equality in both files.
 156
 157 bool
 158 t12()
 159 {
 160   return &t12 == f12();
 161 }
 162
 163 // 13 Compare address of inline function for equality in both files.
 164
 165 bool
 166 t13()
 167 {
 168   return &f13i == f13();
 169 }
 170
 171 // 14 Compare string constants in file 1 and file 2.
 172
 173 bool
 174 t14()
 175 {
 176   const char* s1 = TEST_STRING_CONSTANT;
 177   const char* s2 = f14();
 178   while (*s1 != '\0')
 179     if (*s1++ != *s2++)
 180       return false;
 181   return *s2 == '\0';
 182 }