1 // two_file_test_1.cc -- a two file test case for gold, file 1 of 2 2 3 // Copyright (C) 2006-2016 Free Software Foundation, Inc. 4 // Written by Ian Lance Taylor <iant (at) 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 // 15 Compare wide string constants in file 1 and file 2. 49 // 16 Call a function directly after its address has been taken. 50 // 17 File 1 checks array of string constants defined in file 2. 51 // 18 File 1 checks string constants referenced in code in file 2. 52 53 #include "two_file_test.h" 54 55 // 1 Code in file 1 calls code in file 2. 56 57 bool 58 t1() 59 { 60 return t1_2() == 123; 61 } 62 63 // 2 Code in file 1 refers to global data in file 2. 64 65 bool 66 t2() 67 { 68 return v2 == 456; 69 } 70 71 // 3 Code in file 1 referes to common symbol in file 2. 72 73 bool 74 t3() 75 { 76 return v3 == 789; 77 } 78 79 // 4 Code in file 1 refers to offset within global data in file 2. 80 81 bool 82 t4() 83 { 84 return v4[5] == ','; 85 } 86 87 // 5 Code in file 1 refers to offset within common symbol in file 2. 88 89 bool 90 t5() 91 { 92 return v5[7] == 'w'; 93 } 94 95 // 6 Data in file 1 refers to global data in file 2. 96 97 int* p6 = &v2; 98 99 bool 100 t6() 101 { 102 return *p6 == 456; 103 } 104 105 // 7 Data in file 1 refers to common symbol in file 2. 106 107 int* p7 = &v3; 108 109 bool 110 t7() 111 { 112 return *p7 == 789; 113 } 114 115 // 8 Data in file 1 refers to offset within global data in file 2. 116 117 char* p8 = &v4[6]; 118 119 bool 120 t8() 121 { 122 return *p8 == ' '; 123 } 124 125 // 9 Data in file 1 refers to offset within common symbol in file 2. 126 127 char* p9 = &v5[8]; 128 129 bool 130 t9() 131 { 132 return *p9 == 'o'; 133 } 134 135 // 10 Data in file 1 refers to function in file 2. 136 137 int (*pfn)() = &f10; 138 139 bool 140 t10() 141 { 142 return (*pfn)() == 135; 143 } 144 145 // 11 Pass function pointer from file 1 to file 2. 146 147 int 148 f11a() 149 { 150 return 246; 151 } 152 153 bool 154 t11() 155 { 156 return f11b(&f11a) == 246; 157 } 158 159 // 12 Compare address of function for equality in both files. 160 161 bool 162 t12() 163 { 164 return &t12 == f12(); 165 } 166 167 // 13 Compare address of inline function for equality in both files. 168 169 bool 170 t13() 171 { 172 return &f13i == f13(); 173 } 174 175 // 14 Compare string constants in file 1 and file 2. 176 177 bool 178 t14() 179 { 180 const char* s1 = TEST_STRING_CONSTANT; 181 const char* s2 = f14(); 182 while (*s1 != '\0') 183 if (*s1++ != *s2++) 184 return false; 185 return *s2 == '\0'; 186 } 187 188 // 15 Compare wide string constants in file 1 and file 2. 189 190 bool 191 t15() 192 { 193 const wchar_t* s1 = TEST_WIDE_STRING_CONSTANT; 194 const wchar_t* s2 = f15(); 195 while (*s1 != '\0') 196 if (*s1++ != *s2++) 197 return false; 198 return *s2 == '\0'; 199 } 200 201 // 16 Call a function directly after its address has been taken. 202 203 bool 204 t16() 205 { 206 return f10() == 135; 207 } 208 209 // 17 File 1 checks array of string constants defined in file 2. 210 211 bool 212 t17() 213 { 214 char c = 'a'; 215 for (int i = 0; i < T17_COUNT; ++i) 216 { 217 if (t17data[i][0] != c || t17data[i][1] != '\0') 218 return false; 219 ++c; 220 } 221 return true; 222 } 223 224 // 18 File 1 checks string constants referenced in code in file 2. 225 226 bool 227 t18() 228 { 229 char c = 'a'; 230 for (int i = 0; i < T17_COUNT; ++i) 231 { 232 const char* s = f18(i); 233 if (s[0] != c || s[1] != '\0') 234 return false; 235 ++c; 236 } 237 return true; 238 } 239
