| 1 | #ifndef NULL |
| 2 | #define NULL ((void *) 0) |
| 3 | #endif |
| 4 | |
| 5 | /* This is part of the shared library ld test. This file becomes part |
| 6 | of a shared library. */ |
| 7 | |
| 8 | /* This variable is supplied by the main program. */ |
| 9 | #ifndef XCOFF_TEST |
| 10 | extern int mainvar; |
| 11 | #endif |
| 12 | |
| 13 | /* This variable is defined in the shared library, and overridden by |
| 14 | the main program. */ |
| 15 | #ifndef XCOFF_TEST |
| 16 | #ifdef SHARED |
| 17 | /* SHARED is defined if we are compiling with -fpic/-fPIC. */ |
| 18 | int overriddenvar = -1; |
| 19 | #else |
| 20 | /* Without -fpic, newer versions of gcc assume that we are not |
| 21 | compiling for a shared library, and thus that overriddenvar is |
| 22 | local. */ |
| 23 | extern int overriddenvar; |
| 24 | #endif |
| 25 | #endif |
| 26 | |
| 27 | /* This variable is defined in the shared library. */ |
| 28 | int shlibvar1 = 3; |
| 29 | |
| 30 | /* This variable is defined by another object in the shared library. */ |
| 31 | extern int shlibvar2; |
| 32 | |
| 33 | /* These functions return the values of the above variables as seen in |
| 34 | the shared library. */ |
| 35 | |
| 36 | #ifndef XCOFF_TEST |
| 37 | int |
| 38 | shlib_mainvar () |
| 39 | { |
| 40 | return mainvar; |
| 41 | } |
| 42 | #endif |
| 43 | |
| 44 | #ifndef XCOFF_TEST |
| 45 | int |
| 46 | shlib_overriddenvar () |
| 47 | { |
| 48 | return overriddenvar; |
| 49 | } |
| 50 | #endif |
| 51 | |
| 52 | int |
| 53 | shlib_shlibvar1 () |
| 54 | { |
| 55 | return shlibvar1; |
| 56 | } |
| 57 | |
| 58 | int |
| 59 | shlib_shlibvar2 () |
| 60 | { |
| 61 | return shlibvar2; |
| 62 | } |
| 63 | |
| 64 | /* This function calls a function defined by another object in the |
| 65 | shared library. */ |
| 66 | |
| 67 | extern int shlib_shlibcalled (); |
| 68 | |
| 69 | int |
| 70 | shlib_shlibcall () |
| 71 | { |
| 72 | return shlib_shlibcalled (); |
| 73 | } |
| 74 | |
| 75 | #ifndef XCOFF_TEST |
| 76 | /* This function calls a function defined in this object in the shared |
| 77 | library. The main program will override the called function. */ |
| 78 | |
| 79 | extern int shlib_overriddencall2 (); |
| 80 | |
| 81 | int |
| 82 | shlib_shlibcall2 () |
| 83 | { |
| 84 | return shlib_overriddencall2 (); |
| 85 | } |
| 86 | |
| 87 | #ifdef SHARED |
| 88 | int |
| 89 | shlib_overriddencall2 () |
| 90 | { |
| 91 | return 7; |
| 92 | } |
| 93 | #endif |
| 94 | #endif |
| 95 | |
| 96 | /* This function calls a function defined by the main program. */ |
| 97 | |
| 98 | #ifndef XCOFF_TEST |
| 99 | extern int main_called (); |
| 100 | |
| 101 | int |
| 102 | shlib_maincall () |
| 103 | { |
| 104 | return main_called (); |
| 105 | } |
| 106 | #endif |
| 107 | |
| 108 | /* This function is passed a function pointer to shlib_mainvar. It |
| 109 | confirms that the pointer compares equally. */ |
| 110 | |
| 111 | int |
| 112 | shlib_checkfunptr1 (p) |
| 113 | int (*p) (); |
| 114 | { |
| 115 | return p == shlib_shlibvar1; |
| 116 | } |
| 117 | |
| 118 | /* This function is passed a function pointer to main_called. It |
| 119 | confirms that the pointer compares equally. */ |
| 120 | |
| 121 | #ifndef XCOFF_TEST |
| 122 | int |
| 123 | shlib_checkfunptr2 (p) |
| 124 | int (*p) (); |
| 125 | { |
| 126 | return p == main_called; |
| 127 | } |
| 128 | #endif |
| 129 | |
| 130 | /* This function returns a pointer to shlib_mainvar. */ |
| 131 | |
| 132 | int |
| 133 | (*shlib_getfunptr1 ()) () |
| 134 | { |
| 135 | return shlib_shlibvar1; |
| 136 | } |
| 137 | |
| 138 | /* This function returns a pointer to main_called. */ |
| 139 | |
| 140 | #ifndef XCOFF_TEST |
| 141 | int |
| 142 | (*shlib_getfunptr2 ()) () |
| 143 | { |
| 144 | return main_called; |
| 145 | } |
| 146 | #endif |
| 147 | |
| 148 | /* This function makes sure that constant data and local functions |
| 149 | work. */ |
| 150 | |
| 151 | #ifndef __STDC__ |
| 152 | #define const |
| 153 | #endif |
| 154 | |
| 155 | static int i = 6; |
| 156 | static const char *str = "Hello, world\n"; |
| 157 | |
| 158 | int |
| 159 | shlib_check () |
| 160 | { |
| 161 | const char *s1, *s2; |
| 162 | |
| 163 | if (i != 6) |
| 164 | return 0; |
| 165 | |
| 166 | /* To isolate the test, don't rely on any external functions, such |
| 167 | as strcmp. */ |
| 168 | s1 = "Hello, world\n"; |
| 169 | s2 = str; |
| 170 | while (*s1 != '\0') |
| 171 | if (*s1++ != *s2++) |
| 172 | return 0; |
| 173 | if (*s2 != '\0') |
| 174 | return 0; |
| 175 | |
| 176 | if (shlib_shlibvar1 () != 3) |
| 177 | return 0; |
| 178 | |
| 179 | return 1; |
| 180 | } |
| 181 | |
| 182 | #ifdef HIDDEN_WEAK_TEST |
| 183 | #define HIDDEN_UNDEF_TEST |
| 184 | #define WEAK_TEST |
| 185 | #endif |
| 186 | |
| 187 | #ifdef PROTECTED_WEAK_TEST |
| 188 | #define PROTECTED_UNDEF_TEST |
| 189 | #define WEAK_TEST |
| 190 | #endif |
| 191 | |
| 192 | #if defined (HIDDEN_UNDEF_TEST) || defined (PROTECTED_UNDEF_TEST) |
| 193 | #ifdef WEAK_TEST |
| 194 | #pragma weak visibility |
| 195 | #endif |
| 196 | extern int visibility (); |
| 197 | #else |
| 198 | int |
| 199 | visibility () |
| 200 | { |
| 201 | return 2; |
| 202 | } |
| 203 | #endif |
| 204 | |
| 205 | #ifdef HIDDEN_NORMAL_TEST |
| 206 | __asm__ (".hidden visibility_normal"); |
| 207 | |
| 208 | int |
| 209 | visibility_normal () |
| 210 | { |
| 211 | return 2; |
| 212 | } |
| 213 | #endif |
| 214 | |
| 215 | int |
| 216 | visibility_checkfunptr () |
| 217 | { |
| 218 | #ifdef WEAK_TEST |
| 219 | return 1; |
| 220 | #else |
| 221 | #ifdef HIDDEN_NORMAL_TEST |
| 222 | int (*v) () = visibility_normal; |
| 223 | #else |
| 224 | int (*v) () = visibility; |
| 225 | #endif |
| 226 | return (*v) () == 2; |
| 227 | #endif |
| 228 | } |
| 229 | |
| 230 | int |
| 231 | visibility_check () |
| 232 | { |
| 233 | #ifdef WEAK_TEST |
| 234 | if (&visibility) |
| 235 | return visibility () == 1; |
| 236 | else |
| 237 | return 1; |
| 238 | #else |
| 239 | #ifdef HIDDEN_NORMAL_TEST |
| 240 | return visibility_normal () == 2; |
| 241 | #else |
| 242 | return visibility () == 2; |
| 243 | #endif |
| 244 | #endif |
| 245 | } |
| 246 | |
| 247 | void * |
| 248 | visibility_funptr () |
| 249 | { |
| 250 | #ifdef WEAK_TEST |
| 251 | if (&visibility == NULL) |
| 252 | return NULL; |
| 253 | else |
| 254 | #endif |
| 255 | return visibility; |
| 256 | } |
| 257 | |
| 258 | #if defined (HIDDEN_UNDEF_TEST) || defined (PROTECTED_UNDEF_TEST) |
| 259 | #ifdef WEAK_TEST |
| 260 | #pragma weak visibility_var |
| 261 | #endif |
| 262 | extern int visibility_var; |
| 263 | #else |
| 264 | int visibility_var = 2; |
| 265 | #endif |
| 266 | |
| 267 | #ifdef HIDDEN_NORMAL_TEST |
| 268 | __asm__ (".hidden visibility_var_normal"); |
| 269 | |
| 270 | int visibility_var_normal = 2; |
| 271 | #endif |
| 272 | |
| 273 | int |
| 274 | visibility_checkvarptr () |
| 275 | { |
| 276 | #ifdef WEAK_TEST |
| 277 | if (&visibility_var) |
| 278 | return visibility_var == 1; |
| 279 | else |
| 280 | return 1; |
| 281 | #else |
| 282 | #ifdef HIDDEN_NORMAL_TEST |
| 283 | int *v = &visibility_var_normal; |
| 284 | #else |
| 285 | int *v = &visibility_var; |
| 286 | #endif |
| 287 | return *v == 2; |
| 288 | #endif |
| 289 | } |
| 290 | |
| 291 | int |
| 292 | visibility_checkvar () |
| 293 | { |
| 294 | #ifdef WEAK_TEST |
| 295 | return 1; |
| 296 | #else |
| 297 | #ifdef HIDDEN_NORMAL_TEST |
| 298 | return visibility_var_normal == 2; |
| 299 | #else |
| 300 | return visibility_var == 2; |
| 301 | #endif |
| 302 | #endif |
| 303 | } |
| 304 | |
| 305 | void * |
| 306 | visibility_varptr () |
| 307 | { |
| 308 | #ifdef WEAK_TEST |
| 309 | if (&visibility_var == NULL) |
| 310 | return NULL; |
| 311 | else |
| 312 | #endif |
| 313 | return &visibility_var; |
| 314 | } |
| 315 | |
| 316 | int |
| 317 | visibility_varval () |
| 318 | { |
| 319 | #ifdef WEAK_TEST |
| 320 | if (&visibility_var == NULL) |
| 321 | return 0; |
| 322 | else |
| 323 | #endif |
| 324 | return visibility_var; |
| 325 | } |
| 326 | |
| 327 | #if defined (HIDDEN_TEST) || defined (HIDDEN_UNDEF_TEST) |
| 328 | __asm__ (".hidden visibility"); |
| 329 | __asm__ (".hidden visibility_var"); |
| 330 | #else |
| 331 | #if defined (PROTECTED_TEST) || defined (PROTECTED_UNDEF_TEST) || defined (PROTECTED_WEAK_TEST) |
| 332 | __asm__ (".protected visibility"); |
| 333 | __asm__ (".protected visibility_var"); |
| 334 | #endif |
| 335 | #endif |
| 336 | |
| 337 | #ifdef HIDDEN_NORMAL_TEST |
| 338 | int shlib_visibility_com; |
| 339 | __asm__ (".hidden shlib_visibility_com"); |
| 340 | |
| 341 | int |
| 342 | shlib_visibility_checkcom () |
| 343 | { |
| 344 | return shlib_visibility_com == 0; |
| 345 | } |
| 346 | |
| 347 | int |
| 348 | shlib_visibility_checkweak () |
| 349 | { |
| 350 | return 1; |
| 351 | } |
| 352 | #elif defined (HIDDEN_WEAK_TEST) |
| 353 | #pragma weak shlib_visibility_undef_var_weak |
| 354 | extern int shlib_visibility_undef_var_weak; |
| 355 | __asm__ (".hidden shlib_visibility_undef_var_weak"); |
| 356 | |
| 357 | #pragma weak shlib_visibility_undef_func_weak |
| 358 | extern int shlib_visibility_undef_func_weak (); |
| 359 | __asm__ (".hidden shlib_visibility_undef_func_weak"); |
| 360 | |
| 361 | #pragma weak shlib_visibility_var_weak |
| 362 | extern int shlib_visibility_var_weak; |
| 363 | __asm__ (".hidden shlib_visibility_var_weak"); |
| 364 | |
| 365 | #pragma weak shlib_visibility_func_weak |
| 366 | extern int shlib_visibility_func_weak (); |
| 367 | __asm__ (".hidden shlib_visibility_func_weak"); |
| 368 | |
| 369 | int |
| 370 | shlib_visibility_checkcom () |
| 371 | { |
| 372 | return 1; |
| 373 | } |
| 374 | |
| 375 | int |
| 376 | shlib_visibility_checkweak () |
| 377 | { |
| 378 | return &shlib_visibility_undef_var_weak == NULL |
| 379 | && &shlib_visibility_undef_func_weak == NULL |
| 380 | && &shlib_visibility_func_weak == NULL |
| 381 | && &shlib_visibility_var_weak == NULL; |
| 382 | } |
| 383 | #else |
| 384 | int |
| 385 | shlib_visibility_checkcom () |
| 386 | { |
| 387 | return 1; |
| 388 | } |
| 389 | |
| 390 | int |
| 391 | shlib_visibility_checkweak () |
| 392 | { |
| 393 | return 1; |
| 394 | } |
| 395 | #endif |
| 396 | |
| 397 | #ifdef PROTECTED_TEST |
| 398 | #ifdef SHARED |
| 399 | int shared_data = 100; |
| 400 | #else |
| 401 | extern int shared_data; |
| 402 | #endif |
| 403 | |
| 404 | int * |
| 405 | shared_data_p () |
| 406 | { |
| 407 | return &shared_data; |
| 408 | } |
| 409 | |
| 410 | int |
| 411 | shared_func () |
| 412 | { |
| 413 | return 100; |
| 414 | } |
| 415 | |
| 416 | void * |
| 417 | shared_func_p () |
| 418 | { |
| 419 | return shared_func; |
| 420 | } |
| 421 | #endif |