| 1 | // two_file_test_1_v1.cc -- a two file test case for gold, file 1 of 2 |
| 2 | |
| 3 | // Copyright (C) 2006-2020 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_1.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 | // For incremental linking tests, this file needs to be compiled with |
| 29 | // -fno-exceptions -fno-asynchronous-unwind-tables. |
| 30 | |
| 31 | // This tests references between files. This is file 1, and |
| 32 | // two_file_test_2.cc is file 2. We test in several different ways: |
| 33 | |
| 34 | // Files 1 and 2 linked together in executable. |
| 35 | // File 1 in executable, file 2 in shared library. |
| 36 | // File 1 in shared library, file 2 in executable. |
| 37 | // Files 1 and 2 linked together in shared library. |
| 38 | // Files 1 and 2 in different shared libraries. |
| 39 | |
| 40 | // We test the following cases. |
| 41 | |
| 42 | // 1 Code in file 1 calls code in file 2. |
| 43 | // 2 Code in file 1 refers to global data in file 2. |
| 44 | // 3 Code in file 1 referes to common symbol in file 2. |
| 45 | // 4 Code in file 1 refers to offset within global data in file 2. |
| 46 | // 5 Code in file 1 refers to offset within common symbol in file 2. |
| 47 | // 6 Data in file 1 refers to global data in file 2. |
| 48 | // 7 Data in file 1 refers to common symbol in file 2. |
| 49 | // 8 Data in file 1 refers to offset within global data in file 2. |
| 50 | // 9 Data in file 1 refers to offset within common symbol in file 2. |
| 51 | // 10 Data in file 1 refers to function in file 2. |
| 52 | // 11 Pass function pointer from file 1 to file 2. |
| 53 | // 12 Compare address of function for equality in both files. |
| 54 | // 13 Compare address of inline function for equality in both files. |
| 55 | // 14 Compare string constants in file 1 and file 2. |
| 56 | // 15 Compare wide string constants in file 1 and file 2. |
| 57 | // 16 Call a function directly after its address has been taken. |
| 58 | // 17 File 1 checks array of string constants defined in file 2. |
| 59 | // 18 File 1 checks string constants referenced in code in file 2. |
| 60 | |
| 61 | #include "two_file_test.h" |
| 62 | |
| 63 | // 1 Code in file 1 calls code in file 2. |
| 64 | |
| 65 | bool |
| 66 | t1() |
| 67 | { |
| 68 | return t1_2() == 0; // Intentionally wrong. |
| 69 | } |
| 70 | |
| 71 | // 2 Code in file 1 refers to global data in file 2. |
| 72 | |
| 73 | bool |
| 74 | t2() |
| 75 | { |
| 76 | return v2 == 0; // Intentionally wrong. |
| 77 | } |
| 78 | |
| 79 | // 3 Code in file 1 referes to common symbol in file 2. |
| 80 | |
| 81 | bool |
| 82 | t3() |
| 83 | { |
| 84 | return v3 == 0; // Intentionally wrong. |
| 85 | } |
| 86 | |
| 87 | // 4 Code in file 1 refers to offset within global data in file 2. |
| 88 | |
| 89 | bool |
| 90 | t4() |
| 91 | { |
| 92 | return v4[5] == ','; |
| 93 | } |
| 94 | |
| 95 | // 5 Code in file 1 refers to offset within common symbol in file 2. |
| 96 | |
| 97 | bool |
| 98 | t5() |
| 99 | { |
| 100 | return v5[7] == 'w'; |
| 101 | } |
| 102 | |
| 103 | // 6 Data in file 1 refers to global data in file 2. |
| 104 | |
| 105 | int* p6 = &v2; |
| 106 | |
| 107 | bool |
| 108 | t6() |
| 109 | { |
| 110 | return *p6 == 456; |
| 111 | } |
| 112 | |
| 113 | // 7 Data in file 1 refers to common symbol in file 2. |
| 114 | |
| 115 | int* p7 = &v3; |
| 116 | |
| 117 | bool |
| 118 | t7() |
| 119 | { |
| 120 | return *p7 == 789; |
| 121 | } |
| 122 | |
| 123 | // 8 Data in file 1 refers to offset within global data in file 2. |
| 124 | |
| 125 | char* p8 = &v4[6]; |
| 126 | |
| 127 | bool |
| 128 | t8() |
| 129 | { |
| 130 | return *p8 == ' '; |
| 131 | } |
| 132 | |
| 133 | // 9 Data in file 1 refers to offset within common symbol in file 2. |
| 134 | |
| 135 | char* p9 = &v5[8]; |
| 136 | |
| 137 | bool |
| 138 | t9() |
| 139 | { |
| 140 | return *p9 == 'o'; |
| 141 | } |
| 142 | |
| 143 | // 10 Data in file 1 refers to function in file 2. |
| 144 | |
| 145 | int (*pfn)() = &f10; |
| 146 | |
| 147 | bool |
| 148 | t10() |
| 149 | { |
| 150 | return (*pfn)() == 135; |
| 151 | } |
| 152 | |
| 153 | // 11 Pass function pointer from file 1 to file 2. |
| 154 | |
| 155 | int |
| 156 | f11a() |
| 157 | { |
| 158 | return 246; |
| 159 | } |
| 160 | |
| 161 | bool |
| 162 | t11() |
| 163 | { |
| 164 | return f11b(&f11a) == 246; |
| 165 | } |
| 166 | |
| 167 | // 12 Compare address of function for equality in both files. |
| 168 | |
| 169 | bool |
| 170 | t12() |
| 171 | { |
| 172 | return &t12 == f12(); |
| 173 | } |
| 174 | |
| 175 | // 13 Compare address of inline function for equality in both files. |
| 176 | |
| 177 | bool |
| 178 | t13() |
| 179 | { |
| 180 | return &f13i == f13(); |
| 181 | } |
| 182 | |
| 183 | // 14 Compare string constants in file 1 and file 2. |
| 184 | |
| 185 | bool |
| 186 | t14() |
| 187 | { |
| 188 | const char* s1 = TEST_STRING_CONSTANT; |
| 189 | const char* s2 = f14(); |
| 190 | while (*s1 != '\0') |
| 191 | if (*s1++ != *s2++) |
| 192 | return false; |
| 193 | return *s2 == '\0'; |
| 194 | } |
| 195 | |
| 196 | // 15 Compare wide string constants in file 1 and file 2. |
| 197 | |
| 198 | bool |
| 199 | t15() |
| 200 | { |
| 201 | const wchar_t* s1 = TEST_WIDE_STRING_CONSTANT; |
| 202 | const wchar_t* s2 = f15(); |
| 203 | while (*s1 != '\0') |
| 204 | if (*s1++ != *s2++) |
| 205 | return false; |
| 206 | return *s2 == '\0'; |
| 207 | } |
| 208 | |
| 209 | // 16 Call a function directly after its address has been taken. |
| 210 | |
| 211 | bool |
| 212 | t16() |
| 213 | { |
| 214 | return f10() == 135; |
| 215 | } |
| 216 | |
| 217 | // 17 File 1 checks array of string constants defined in file 2. |
| 218 | |
| 219 | bool |
| 220 | t17() |
| 221 | { |
| 222 | char c = 'a'; |
| 223 | for (int i = 0; i < T17_COUNT; ++i) |
| 224 | { |
| 225 | if (t17data[i][0] != c || t17data[i][1] != '\0') |
| 226 | return false; |
| 227 | ++c; |
| 228 | } |
| 229 | return true; |
| 230 | } |
| 231 | |
| 232 | // 18 File 1 checks string constants referenced in code in file 2. |
| 233 | |
| 234 | bool |
| 235 | t18() |
| 236 | { |
| 237 | // Stubbed out; full implementation in two_file_test_1.cc. |
| 238 | return true; |
| 239 | } |