| | 1 | /* Test plugin for the GNU linker. Check non-object IR file as well as |
| | 2 | get_input_file, get_view, release_input_file and get_symbols interfaces. |
| | 3 | Copyright (C) 2016-2018 Free Software Foundation, Inc. |
| | 4 | |
| | 5 | This file is part of the GNU Binutils. |
| | 6 | |
| | 7 | This program is free software; you can redistribute it and/or modify |
| | 8 | it under the terms of the GNU General Public License as published by |
| | 9 | the Free Software Foundation; either version 3 of the License, or |
| | 10 | (at your option) any later version. |
| | 11 | |
| | 12 | This program is distributed in the hope that it will be useful, |
| | 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| | 15 | GNU General Public License for more details. |
| | 16 | |
| | 17 | You should have received a copy of the GNU General Public License |
| | 18 | along with this program; if not, write to the Free Software |
| | 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| | 20 | MA 02110-1301, USA. */ |
| | 21 | |
| | 22 | #include "sysdep.h" |
| | 23 | #include "bfd.h" |
| | 24 | #include "plugin-api.h" |
| | 25 | #include "filenames.h" |
| | 26 | /* For ARRAY_SIZE macro only - we don't link the library itself. */ |
| | 27 | #include "libiberty.h" |
| | 28 | |
| | 29 | extern enum ld_plugin_status onload (struct ld_plugin_tv *tv); |
| | 30 | static enum ld_plugin_status onclaim_file (const struct ld_plugin_input_file *file, |
| | 31 | int *claimed); |
| | 32 | static enum ld_plugin_status onall_symbols_read (void); |
| | 33 | static enum ld_plugin_status oncleanup (void); |
| | 34 | |
| | 35 | /* Helper for calling plugin api message function. */ |
| | 36 | #define TV_MESSAGE if (tv_message) (*tv_message) |
| | 37 | |
| | 38 | /* Struct for recording files to claim / files claimed. */ |
| | 39 | typedef struct claim_file |
| | 40 | { |
| | 41 | struct claim_file *next; |
| | 42 | struct ld_plugin_input_file file; |
| | 43 | bfd_boolean claimed; |
| | 44 | struct ld_plugin_symbol *symbols; |
| | 45 | int n_syms_allocated; |
| | 46 | int n_syms_used; |
| | 47 | } claim_file_t; |
| | 48 | |
| | 49 | /* Types of things that can be added at all symbols read time. */ |
| | 50 | typedef enum addfile_enum |
| | 51 | { |
| | 52 | ADD_FILE, |
| | 53 | ADD_LIB, |
| | 54 | ADD_DIR |
| | 55 | } addfile_enum_t; |
| | 56 | |
| | 57 | /* Struct for recording files to add to final link. */ |
| | 58 | typedef struct add_file |
| | 59 | { |
| | 60 | struct add_file *next; |
| | 61 | const char *name; |
| | 62 | addfile_enum_t type; |
| | 63 | } add_file_t; |
| | 64 | |
| | 65 | /* Helper macro for defining array of transfer vector tags and names. */ |
| | 66 | #define ADDENTRY(tag) { tag, #tag } |
| | 67 | |
| | 68 | /* Struct for looking up human-readable versions of tag names. */ |
| | 69 | typedef struct tag_name |
| | 70 | { |
| | 71 | enum ld_plugin_tag tag; |
| | 72 | const char *name; |
| | 73 | } tag_name_t; |
| | 74 | |
| | 75 | /* Array of all known tags and their names. */ |
| | 76 | static const tag_name_t tag_names[] = |
| | 77 | { |
| | 78 | ADDENTRY(LDPT_NULL), |
| | 79 | ADDENTRY(LDPT_API_VERSION), |
| | 80 | ADDENTRY(LDPT_GOLD_VERSION), |
| | 81 | ADDENTRY(LDPT_LINKER_OUTPUT), |
| | 82 | ADDENTRY(LDPT_OPTION), |
| | 83 | ADDENTRY(LDPT_REGISTER_CLAIM_FILE_HOOK), |
| | 84 | ADDENTRY(LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK), |
| | 85 | ADDENTRY(LDPT_REGISTER_CLEANUP_HOOK), |
| | 86 | ADDENTRY(LDPT_ADD_SYMBOLS), |
| | 87 | ADDENTRY(LDPT_GET_SYMBOLS), |
| | 88 | ADDENTRY(LDPT_GET_SYMBOLS_V2), |
| | 89 | ADDENTRY(LDPT_ADD_INPUT_FILE), |
| | 90 | ADDENTRY(LDPT_MESSAGE), |
| | 91 | ADDENTRY(LDPT_GET_INPUT_FILE), |
| | 92 | ADDENTRY(LDPT_GET_VIEW), |
| | 93 | ADDENTRY(LDPT_RELEASE_INPUT_FILE), |
| | 94 | ADDENTRY(LDPT_ADD_INPUT_LIBRARY), |
| | 95 | ADDENTRY(LDPT_OUTPUT_NAME), |
| | 96 | ADDENTRY(LDPT_SET_EXTRA_LIBRARY_PATH), |
| | 97 | ADDENTRY(LDPT_GNU_LD_VERSION) |
| | 98 | }; |
| | 99 | |
| | 100 | /* Function pointers to cache hooks passed at onload time. */ |
| | 101 | static ld_plugin_register_claim_file tv_register_claim_file = 0; |
| | 102 | static ld_plugin_register_all_symbols_read tv_register_all_symbols_read = 0; |
| | 103 | static ld_plugin_register_cleanup tv_register_cleanup = 0; |
| | 104 | static ld_plugin_add_symbols tv_add_symbols = 0; |
| | 105 | static ld_plugin_get_symbols tv_get_symbols = 0; |
| | 106 | static ld_plugin_get_symbols tv_get_symbols_v2 = 0; |
| | 107 | static ld_plugin_add_input_file tv_add_input_file = 0; |
| | 108 | static ld_plugin_message tv_message = 0; |
| | 109 | static ld_plugin_get_input_file tv_get_input_file = 0; |
| | 110 | static ld_plugin_get_view tv_get_view = 0; |
| | 111 | static ld_plugin_release_input_file tv_release_input_file = 0; |
| | 112 | static ld_plugin_add_input_library tv_add_input_library = 0; |
| | 113 | static ld_plugin_set_extra_library_path tv_set_extra_library_path = 0; |
| | 114 | |
| | 115 | /* Other cached info from the transfer vector. */ |
| | 116 | static enum ld_plugin_output_file_type linker_output; |
| | 117 | static const char *output_name; |
| | 118 | |
| | 119 | /* Behaviour control flags set by plugin options. */ |
| | 120 | static enum ld_plugin_status onload_ret = LDPS_OK; |
| | 121 | static enum ld_plugin_status claim_file_ret = LDPS_OK; |
| | 122 | static enum ld_plugin_status all_symbols_read_ret = LDPS_OK; |
| | 123 | static enum ld_plugin_status cleanup_ret = LDPS_OK; |
| | 124 | static bfd_boolean register_claimfile_hook = TRUE; |
| | 125 | static bfd_boolean register_allsymbolsread_hook = FALSE; |
| | 126 | static bfd_boolean register_cleanup_hook = FALSE; |
| | 127 | static bfd_boolean dumpresolutions = FALSE; |
| | 128 | static bfd_boolean allsymbolsread_silent = FALSE; |
| | 129 | |
| | 130 | /* The master list of all claimable/claimed files. */ |
| | 131 | static claim_file_t *claimfiles_list = NULL; |
| | 132 | |
| | 133 | /* We keep a tail pointer for easy linking on the end. */ |
| | 134 | static claim_file_t **claimfiles_tail_chain_ptr = &claimfiles_list; |
| | 135 | |
| | 136 | /* The last claimed file added to the list, for receiving syms. */ |
| | 137 | static claim_file_t *last_claimfile = NULL; |
| | 138 | |
| | 139 | /* The master list of all files to add to the final link. */ |
| | 140 | static add_file_t *addfiles_list = NULL; |
| | 141 | |
| | 142 | /* We keep a tail pointer for easy linking on the end. */ |
| | 143 | static add_file_t **addfiles_tail_chain_ptr = &addfiles_list; |
| | 144 | |
| | 145 | /* Add a new claimfile on the end of the chain. */ |
| | 146 | static enum ld_plugin_status |
| | 147 | record_claim_file (const char *file, off_t filesize) |
| | 148 | { |
| | 149 | claim_file_t *newfile; |
| | 150 | |
| | 151 | newfile = malloc (sizeof *newfile); |
| | 152 | if (!newfile) |
| | 153 | return LDPS_ERR; |
| | 154 | memset (newfile, 0, sizeof *newfile); |
| | 155 | /* Only setup for now is remembering the name to look for. */ |
| | 156 | newfile->file.name = file; |
| | 157 | newfile->file.filesize = filesize; |
| | 158 | /* Chain it on the end of the list. */ |
| | 159 | *claimfiles_tail_chain_ptr = newfile; |
| | 160 | claimfiles_tail_chain_ptr = &newfile->next; |
| | 161 | /* Record it as active for receiving symbols to register. */ |
| | 162 | last_claimfile = newfile; |
| | 163 | return LDPS_OK; |
| | 164 | } |
| | 165 | |
| | 166 | /* Add a new addfile on the end of the chain. */ |
| | 167 | static enum ld_plugin_status |
| | 168 | record_add_file (const char *file, addfile_enum_t type) |
| | 169 | { |
| | 170 | add_file_t *newfile; |
| | 171 | |
| | 172 | newfile = malloc (sizeof *newfile); |
| | 173 | if (!newfile) |
| | 174 | return LDPS_ERR; |
| | 175 | newfile->next = NULL; |
| | 176 | newfile->name = file; |
| | 177 | newfile->type = type; |
| | 178 | /* Chain it on the end of the list. */ |
| | 179 | *addfiles_tail_chain_ptr = newfile; |
| | 180 | addfiles_tail_chain_ptr = &newfile->next; |
| | 181 | return LDPS_OK; |
| | 182 | } |
| | 183 | |
| | 184 | /* Parse a command-line argument string into a symbol definition. |
| | 185 | Symbol-strings follow the colon-separated format: |
| | 186 | NAME:VERSION:def:vis:size:COMDATKEY |
| | 187 | where the fields in capitals are strings and those in lower |
| | 188 | case are integers. We don't allow to specify a resolution as |
| | 189 | doing so is not meaningful when calling the add symbols hook. */ |
| | 190 | static enum ld_plugin_status |
| | 191 | parse_symdefstr (const char *str, struct ld_plugin_symbol *sym) |
| | 192 | { |
| | 193 | int n; |
| | 194 | long long size; |
| | 195 | const char *colon1, *colon2, *colon5; |
| | 196 | |
| | 197 | /* Locate the colons separating the first two strings. */ |
| | 198 | colon1 = strchr (str, ':'); |
| | 199 | if (!colon1) |
| | 200 | return LDPS_ERR; |
| | 201 | colon2 = strchr (colon1+1, ':'); |
| | 202 | if (!colon2) |
| | 203 | return LDPS_ERR; |
| | 204 | /* Name must not be empty (version may be). */ |
| | 205 | if (colon1 == str) |
| | 206 | return LDPS_ERR; |
| | 207 | |
| | 208 | /* The fifth colon and trailing comdat key string are optional, |
| | 209 | but the intermediate ones must all be present. */ |
| | 210 | colon5 = strchr (colon2+1, ':'); /* Actually only third so far. */ |
| | 211 | if (!colon5) |
| | 212 | return LDPS_ERR; |
| | 213 | colon5 = strchr (colon5+1, ':'); /* Hopefully fourth now. */ |
| | 214 | if (!colon5) |
| | 215 | return LDPS_ERR; |
| | 216 | colon5 = strchr (colon5+1, ':'); /* Optional fifth now. */ |
| | 217 | |
| | 218 | /* Finally we'll use sscanf to parse the numeric fields, then |
| | 219 | we'll split out the strings which we need to allocate separate |
| | 220 | storage for anyway so that we can add nul termination. */ |
| | 221 | n = sscanf (colon2 + 1, "%i:%i:%lli", &sym->def, &sym->visibility, &size); |
| | 222 | if (n != 3) |
| | 223 | return LDPS_ERR; |
| | 224 | |
| | 225 | /* Parsed successfully, so allocate strings and fill out fields. */ |
| | 226 | sym->size = size; |
| | 227 | sym->resolution = LDPR_UNKNOWN; |
| | 228 | sym->name = malloc (colon1 - str + 1); |
| | 229 | if (!sym->name) |
| | 230 | return LDPS_ERR; |
| | 231 | memcpy (sym->name, str, colon1 - str); |
| | 232 | sym->name[colon1 - str] = '\0'; |
| | 233 | if (colon2 > (colon1 + 1)) |
| | 234 | { |
| | 235 | sym->version = malloc (colon2 - colon1); |
| | 236 | if (!sym->version) |
| | 237 | return LDPS_ERR; |
| | 238 | memcpy (sym->version, colon1 + 1, colon2 - (colon1 + 1)); |
| | 239 | sym->version[colon2 - (colon1 + 1)] = '\0'; |
| | 240 | } |
| | 241 | else |
| | 242 | sym->version = NULL; |
| | 243 | if (colon5 && colon5[1]) |
| | 244 | { |
| | 245 | sym->comdat_key = malloc (strlen (colon5 + 1) + 1); |
| | 246 | if (!sym->comdat_key) |
| | 247 | return LDPS_ERR; |
| | 248 | strcpy (sym->comdat_key, colon5 + 1); |
| | 249 | } |
| | 250 | else |
| | 251 | sym->comdat_key = 0; |
| | 252 | return LDPS_OK; |
| | 253 | } |
| | 254 | |
| | 255 | /* Record a symbol to be added for the last-added claimfile. */ |
| | 256 | static enum ld_plugin_status |
| | 257 | record_claimed_file_symbol (const char *symdefstr) |
| | 258 | { |
| | 259 | struct ld_plugin_symbol sym; |
| | 260 | |
| | 261 | /* Can't add symbols except as belonging to claimed files. */ |
| | 262 | if (!last_claimfile) |
| | 263 | return LDPS_ERR; |
| | 264 | |
| | 265 | /* If string doesn't parse correctly, give an error. */ |
| | 266 | if (parse_symdefstr (symdefstr, &sym) != LDPS_OK) |
| | 267 | return LDPS_ERR; |
| | 268 | |
| | 269 | /* Check for enough space, resize array if needed, and add it. */ |
| | 270 | if (last_claimfile->n_syms_allocated == last_claimfile->n_syms_used) |
| | 271 | { |
| | 272 | int new_n_syms = last_claimfile->n_syms_allocated |
| | 273 | ? 2 * last_claimfile->n_syms_allocated |
| | 274 | : 10; |
| | 275 | last_claimfile->symbols = realloc (last_claimfile->symbols, |
| | 276 | new_n_syms * sizeof *last_claimfile->symbols); |
| | 277 | if (!last_claimfile->symbols) |
| | 278 | return LDPS_ERR; |
| | 279 | last_claimfile->n_syms_allocated = new_n_syms; |
| | 280 | } |
| | 281 | last_claimfile->symbols[last_claimfile->n_syms_used++] = sym; |
| | 282 | |
| | 283 | return LDPS_OK; |
| | 284 | } |
| | 285 | |
| | 286 | /* Records the status to return from one of the registered hooks. */ |
| | 287 | static enum ld_plugin_status |
| | 288 | set_ret_val (const char *whichval, enum ld_plugin_status retval) |
| | 289 | { |
| | 290 | if (!strcmp ("onload", whichval)) |
| | 291 | onload_ret = retval; |
| | 292 | else if (!strcmp ("claimfile", whichval)) |
| | 293 | claim_file_ret = retval; |
| | 294 | else if (!strcmp ("allsymbolsread", whichval)) |
| | 295 | all_symbols_read_ret = retval; |
| | 296 | else if (!strcmp ("cleanup", whichval)) |
| | 297 | cleanup_ret = retval; |
| | 298 | else |
| | 299 | return LDPS_ERR; |
| | 300 | return LDPS_OK; |
| | 301 | } |
| | 302 | |
| | 303 | /* Records hooks which should be registered. */ |
| | 304 | static enum ld_plugin_status |
| | 305 | set_register_hook (const char *whichhook, bfd_boolean yesno) |
| | 306 | { |
| | 307 | if (!strcmp ("claimfile", whichhook)) |
| | 308 | register_claimfile_hook = yesno; |
| | 309 | else if (!strcmp ("allsymbolsread", whichhook)) |
| | 310 | register_allsymbolsread_hook = yesno; |
| | 311 | else if (!strcmp ("allsymbolsreadsilent", whichhook)) |
| | 312 | { |
| | 313 | register_allsymbolsread_hook = yesno; |
| | 314 | allsymbolsread_silent = TRUE; |
| | 315 | } |
| | 316 | else if (!strcmp ("cleanup", whichhook)) |
| | 317 | register_cleanup_hook = yesno; |
| | 318 | else |
| | 319 | return LDPS_ERR; |
| | 320 | return LDPS_OK; |
| | 321 | } |
| | 322 | |
| | 323 | /* Determine type of plugin option and pass to individual parsers. */ |
| | 324 | static enum ld_plugin_status |
| | 325 | parse_option (const char *opt) |
| | 326 | { |
| | 327 | if (!strncmp ("fatal", opt, 5)) |
| | 328 | { |
| | 329 | TV_MESSAGE (LDPL_FATAL, "Fatal error"); |
| | 330 | fflush (NULL); |
| | 331 | } |
| | 332 | else if (!strncmp ("error", opt, 5)) |
| | 333 | { |
| | 334 | TV_MESSAGE (LDPL_ERROR, "Error"); |
| | 335 | fflush (NULL); |
| | 336 | } |
| | 337 | else if (!strncmp ("warning", opt, 7)) |
| | 338 | { |
| | 339 | TV_MESSAGE (LDPL_WARNING, "Warning"); |
| | 340 | fflush (NULL); |
| | 341 | } |
| | 342 | else if (!strncmp ("fail", opt, 4)) |
| | 343 | return set_ret_val (opt + 4, LDPS_ERR); |
| | 344 | else if (!strncmp ("pass", opt, 4)) |
| | 345 | return set_ret_val (opt + 4, LDPS_OK); |
| | 346 | else if (!strncmp ("register", opt, 8)) |
| | 347 | return set_register_hook (opt + 8, TRUE); |
| | 348 | else if (!strncmp ("noregister", opt, 10)) |
| | 349 | return set_register_hook (opt + 10, FALSE); |
| | 350 | else if (!strncmp ("claim:", opt, 6)) |
| | 351 | return record_claim_file (opt + 6, 0); |
| | 352 | else if (!strncmp ("sym:", opt, 4)) |
| | 353 | return record_claimed_file_symbol (opt + 4); |
| | 354 | else if (!strncmp ("add:", opt, 4)) |
| | 355 | return record_add_file (opt + 4, ADD_FILE); |
| | 356 | else if (!strncmp ("lib:", opt, 4)) |
| | 357 | return record_add_file (opt + 4, ADD_LIB); |
| | 358 | else if (!strncmp ("dir:", opt, 4)) |
| | 359 | return record_add_file (opt + 4, ADD_DIR); |
| | 360 | else if (!strcmp ("dumpresolutions", opt)) |
| | 361 | dumpresolutions = TRUE; |
| | 362 | else |
| | 363 | return LDPS_ERR; |
| | 364 | return LDPS_OK; |
| | 365 | } |
| | 366 | |
| | 367 | /* Handle/record information received in a transfer vector entry. */ |
| | 368 | static enum ld_plugin_status |
| | 369 | parse_tv_tag (struct ld_plugin_tv *tv) |
| | 370 | { |
| | 371 | #define SETVAR(x) x = tv->tv_u.x |
| | 372 | switch (tv->tv_tag) |
| | 373 | { |
| | 374 | case LDPT_OPTION: |
| | 375 | return parse_option (tv->tv_u.tv_string); |
| | 376 | case LDPT_NULL: |
| | 377 | case LDPT_GOLD_VERSION: |
| | 378 | case LDPT_GNU_LD_VERSION: |
| | 379 | case LDPT_API_VERSION: |
| | 380 | default: |
| | 381 | break; |
| | 382 | case LDPT_OUTPUT_NAME: |
| | 383 | output_name = tv->tv_u.tv_string; |
| | 384 | break; |
| | 385 | case LDPT_LINKER_OUTPUT: |
| | 386 | linker_output = tv->tv_u.tv_val; |
| | 387 | break; |
| | 388 | case LDPT_REGISTER_CLAIM_FILE_HOOK: |
| | 389 | SETVAR(tv_register_claim_file); |
| | 390 | break; |
| | 391 | case LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK: |
| | 392 | SETVAR(tv_register_all_symbols_read); |
| | 393 | break; |
| | 394 | case LDPT_REGISTER_CLEANUP_HOOK: |
| | 395 | SETVAR(tv_register_cleanup); |
| | 396 | break; |
| | 397 | case LDPT_ADD_SYMBOLS: |
| | 398 | SETVAR(tv_add_symbols); |
| | 399 | break; |
| | 400 | case LDPT_GET_SYMBOLS: |
| | 401 | SETVAR(tv_get_symbols); |
| | 402 | break; |
| | 403 | case LDPT_GET_SYMBOLS_V2: |
| | 404 | tv_get_symbols_v2 = tv->tv_u.tv_get_symbols; |
| | 405 | break; |
| | 406 | case LDPT_ADD_INPUT_FILE: |
| | 407 | SETVAR(tv_add_input_file); |
| | 408 | break; |
| | 409 | case LDPT_MESSAGE: |
| | 410 | SETVAR(tv_message); |
| | 411 | break; |
| | 412 | case LDPT_GET_INPUT_FILE: |
| | 413 | SETVAR(tv_get_input_file); |
| | 414 | break; |
| | 415 | case LDPT_GET_VIEW: |
| | 416 | SETVAR(tv_get_view); |
| | 417 | break; |
| | 418 | case LDPT_RELEASE_INPUT_FILE: |
| | 419 | SETVAR(tv_release_input_file); |
| | 420 | break; |
| | 421 | case LDPT_ADD_INPUT_LIBRARY: |
| | 422 | SETVAR(tv_add_input_library); |
| | 423 | break; |
| | 424 | case LDPT_SET_EXTRA_LIBRARY_PATH: |
| | 425 | SETVAR(tv_set_extra_library_path); |
| | 426 | break; |
| | 427 | } |
| | 428 | #undef SETVAR |
| | 429 | return LDPS_OK; |
| | 430 | } |
| | 431 | |
| | 432 | /* Standard plugin API entry point. */ |
| | 433 | enum ld_plugin_status |
| | 434 | onload (struct ld_plugin_tv *tv) |
| | 435 | { |
| | 436 | enum ld_plugin_status rv; |
| | 437 | |
| | 438 | /* This plugin does nothing but dump the tv array. It would |
| | 439 | be an error if this function was called without one. */ |
| | 440 | if (!tv) |
| | 441 | return LDPS_ERR; |
| | 442 | |
| | 443 | /* First entry should always be LDPT_MESSAGE, letting us get |
| | 444 | hold of it easily so we can send output straight away. */ |
| | 445 | if (tv[0].tv_tag == LDPT_MESSAGE) |
| | 446 | tv_message = tv[0].tv_u.tv_message; |
| | 447 | |
| | 448 | do |
| | 449 | if ((rv = parse_tv_tag (tv)) != LDPS_OK) |
| | 450 | return rv; |
| | 451 | while ((tv++)->tv_tag != LDPT_NULL); |
| | 452 | |
| | 453 | /* Register hooks only if instructed by options. */ |
| | 454 | if (register_claimfile_hook) |
| | 455 | { |
| | 456 | if (!tv_register_claim_file) |
| | 457 | { |
| | 458 | TV_MESSAGE (LDPL_FATAL, "No register_claim_file hook"); |
| | 459 | fflush (NULL); |
| | 460 | return LDPS_ERR; |
| | 461 | } |
| | 462 | (*tv_register_claim_file) (onclaim_file); |
| | 463 | } |
| | 464 | if (register_allsymbolsread_hook) |
| | 465 | { |
| | 466 | if (!tv_register_all_symbols_read) |
| | 467 | { |
| | 468 | TV_MESSAGE (LDPL_FATAL, "No register_all_symbols_read hook"); |
| | 469 | fflush (NULL); |
| | 470 | return LDPS_ERR; |
| | 471 | } |
| | 472 | (*tv_register_all_symbols_read) (onall_symbols_read); |
| | 473 | } |
| | 474 | if (register_cleanup_hook) |
| | 475 | { |
| | 476 | if (!tv_register_cleanup) |
| | 477 | { |
| | 478 | TV_MESSAGE (LDPL_FATAL, "No register_cleanup hook"); |
| | 479 | fflush (NULL); |
| | 480 | return LDPS_ERR; |
| | 481 | } |
| | 482 | (*tv_register_cleanup) (oncleanup); |
| | 483 | } |
| | 484 | |
| | 485 | /* Claim testsuite/ld-plugin/pr20070b.c, standalone or in a library. |
| | 486 | Its size must be SIZE_OF_PR20070B_C bytes. */ |
| | 487 | #define SIZE_OF_PR20070B_C 248 |
| | 488 | if (onload_ret == LDPS_OK |
| | 489 | && (record_claim_file ("pr20070b.c", SIZE_OF_PR20070B_C) != LDPS_OK |
| | 490 | || record_claimed_file_symbol ("def::0:0:0") != LDPS_OK |
| | 491 | || record_claimed_file_symbol ("weakdef::1:0:0") != LDPS_OK |
| | 492 | || record_claimed_file_symbol ("undef::2:0:0") != LDPS_OK |
| | 493 | || record_claimed_file_symbol ("weakundef::3:0:0") != LDPS_OK |
| | 494 | || record_claimed_file_symbol ("common::4:0:0") != LDPS_OK |
| | 495 | || record_claim_file ("libpr20070.a", SIZE_OF_PR20070B_C) != LDPS_OK |
| | 496 | || record_claimed_file_symbol ("def::0:0:0") != LDPS_OK |
| | 497 | || record_claimed_file_symbol ("weakdef::1:0:0") != LDPS_OK |
| | 498 | || record_claimed_file_symbol ("undef::2:0:0") != LDPS_OK |
| | 499 | || record_claimed_file_symbol ("weakundef::3:0:0") != LDPS_OK |
| | 500 | || record_claimed_file_symbol ("common::4:0:0") != LDPS_OK)) |
| | 501 | onload_ret = LDPS_ERR; |
| | 502 | |
| | 503 | return onload_ret; |
| | 504 | } |
| | 505 | |
| | 506 | char * |
| | 507 | xstrdup (const char *s) |
| | 508 | { |
| | 509 | size_t len = strlen (s) + 1; |
| | 510 | char *ret = malloc (len + 1); |
| | 511 | return (char *) memcpy (ret, s, len); |
| | 512 | } |
| | 513 | |
| | 514 | /* Standard plugin API registerable hook. */ |
| | 515 | static enum ld_plugin_status |
| | 516 | onclaim_file (const struct ld_plugin_input_file *file, int *claimed) |
| | 517 | { |
| | 518 | /* Let's see if we want to claim this file. */ |
| | 519 | claim_file_t *claimfile = claimfiles_list; |
| | 520 | size_t len = strlen (file->name); |
| | 521 | char *name = xstrdup (file->name); |
| | 522 | char *p = name + len; |
| | 523 | bfd_boolean islib; |
| | 524 | |
| | 525 | /* Only match the file name without the directory part. */ |
| | 526 | islib = *p == 'a' && *(p - 1) == '.'; |
| | 527 | for (; p != name; p--) |
| | 528 | if (IS_DIR_SEPARATOR (*p)) |
| | 529 | { |
| | 530 | p++; |
| | 531 | break; |
| | 532 | } |
| | 533 | |
| | 534 | while (claimfile) |
| | 535 | { |
| | 536 | /* Claim the file only if the file name and size match and don't |
| | 537 | match the whole library. */ |
| | 538 | if (!strcmp (p, claimfile->file.name) |
| | 539 | && claimfile->file.filesize == file->filesize |
| | 540 | && (!islib || file->offset != 0)) |
| | 541 | break; |
| | 542 | claimfile = claimfile->next; |
| | 543 | } |
| | 544 | |
| | 545 | free (name); |
| | 546 | |
| | 547 | /* If we decided to claim it, record that fact, and add any symbols |
| | 548 | that were defined for it by plugin options. */ |
| | 549 | *claimed = (claimfile != 0); |
| | 550 | if (claimfile) |
| | 551 | { |
| | 552 | claimfile->claimed = TRUE; |
| | 553 | claimfile->file = *file; |
| | 554 | if (claimfile->n_syms_used && !tv_add_symbols) |
| | 555 | return LDPS_ERR; |
| | 556 | else if (claimfile->n_syms_used) |
| | 557 | return (*tv_add_symbols) (claimfile->file.handle, |
| | 558 | claimfile->n_syms_used, claimfile->symbols); |
| | 559 | } |
| | 560 | |
| | 561 | return claim_file_ret; |
| | 562 | } |
| | 563 | |
| | 564 | /* Standard plugin API registerable hook. */ |
| | 565 | static enum ld_plugin_status |
| | 566 | onall_symbols_read (void) |
| | 567 | { |
| | 568 | static const char *resolutions[] = |
| | 569 | { |
| | 570 | "LDPR_UNKNOWN", |
| | 571 | "LDPR_UNDEF", |
| | 572 | "LDPR_PREVAILING_DEF", |
| | 573 | "LDPR_PREVAILING_DEF_IRONLY", |
| | 574 | "LDPR_PREEMPTED_REG", |
| | 575 | "LDPR_PREEMPTED_IR", |
| | 576 | "LDPR_RESOLVED_IR", |
| | 577 | "LDPR_RESOLVED_EXEC", |
| | 578 | "LDPR_RESOLVED_DYN", |
| | 579 | "LDPR_PREVAILING_DEF_IRONLY_EXP", |
| | 580 | }; |
| | 581 | claim_file_t *claimfile = dumpresolutions ? claimfiles_list : NULL; |
| | 582 | add_file_t *addfile = addfiles_list; |
| | 583 | struct ld_plugin_input_file file; |
| | 584 | const void *view; |
| | 585 | char buffer[30]; |
| | 586 | int fd; |
| | 587 | char *filename; |
| | 588 | if (! allsymbolsread_silent) |
| | 589 | TV_MESSAGE (LDPL_INFO, "hook called: all symbols read."); |
| | 590 | for ( ; claimfile; claimfile = claimfile->next) |
| | 591 | { |
| | 592 | enum ld_plugin_status rv; |
| | 593 | int n; |
| | 594 | if (claimfile->n_syms_used && !tv_get_symbols_v2) |
| | 595 | return LDPS_ERR; |
| | 596 | else if (!claimfile->n_syms_used) |
| | 597 | continue; |
| | 598 | else if (!claimfile->file.handle) |
| | 599 | continue; |
| | 600 | rv = tv_get_input_file (claimfile->file.handle, &file); |
| | 601 | if (rv != LDPS_OK) |
| | 602 | return rv; |
| | 603 | TV_MESSAGE (LDPL_INFO, "Input: %s (%s)", file.name, |
| | 604 | claimfile->file.name); |
| | 605 | rv = tv_get_view (claimfile->file.handle, &view); |
| | 606 | if (rv != LDPS_OK) |
| | 607 | return rv; |
| | 608 | #define EXPECTED_VIEW "/* The first line of this file must match the expectation of" |
| | 609 | #define EXPECTED_VIEW_LENGTH (sizeof (EXPECTED_VIEW) - 1) |
| | 610 | if (file.filesize != SIZE_OF_PR20070B_C |
| | 611 | || SIZE_OF_PR20070B_C < EXPECTED_VIEW_LENGTH |
| | 612 | || memcmp (view, EXPECTED_VIEW, EXPECTED_VIEW_LENGTH) != 0) |
| | 613 | { |
| | 614 | char result[EXPECTED_VIEW_LENGTH + 1]; |
| | 615 | memcpy (result, view, sizeof (result)); |
| | 616 | result[EXPECTED_VIEW_LENGTH] = '\0'; |
| | 617 | TV_MESSAGE (LDPL_INFO, "Incorrect view:"); |
| | 618 | TV_MESSAGE (LDPL_INFO, " Expect: " EXPECTED_VIEW); |
| | 619 | TV_MESSAGE (LDPL_INFO, " Result: %s", result); |
| | 620 | } |
| | 621 | rv = tv_get_symbols_v2 (claimfile->file.handle, claimfile->n_syms_used, |
| | 622 | claimfile->symbols); |
| | 623 | if (rv != LDPS_OK) |
| | 624 | return rv; |
| | 625 | for (n = 0; n < claimfile->n_syms_used; n++) |
| | 626 | TV_MESSAGE (LDPL_INFO, "Sym: '%s%s%s' Resolution: %s", |
| | 627 | claimfile->symbols[n].name, |
| | 628 | claimfile->symbols[n].version ? "@" : "", |
| | 629 | (claimfile->symbols[n].version |
| | 630 | ? claimfile->symbols[n].version : ""), |
| | 631 | resolutions[claimfile->symbols[n].resolution]); |
| | 632 | fd = claimfile->file.fd; |
| | 633 | filename = xstrdup (claimfile->file.name); |
| | 634 | rv = tv_release_input_file (claimfile->file.handle); |
| | 635 | if (rv != LDPS_OK) |
| | 636 | { |
| | 637 | free (filename); |
| | 638 | return rv; |
| | 639 | } |
| | 640 | if (read (fd, buffer, sizeof (buffer)) >= 0) |
| | 641 | { |
| | 642 | TV_MESSAGE (LDPL_FATAL, "Unreleased file descriptor on: %s", |
| | 643 | claimfile->file.name); |
| | 644 | free (filename); |
| | 645 | return LDPS_ERR; |
| | 646 | } |
| | 647 | free (filename); |
| | 648 | } |
| | 649 | for ( ; addfile ; addfile = addfile->next) |
| | 650 | { |
| | 651 | enum ld_plugin_status rv; |
| | 652 | if (addfile->type == ADD_LIB && tv_add_input_library) |
| | 653 | rv = (*tv_add_input_library) (addfile->name); |
| | 654 | else if (addfile->type == ADD_FILE && tv_add_input_file) |
| | 655 | rv = (*tv_add_input_file) (addfile->name); |
| | 656 | else if (addfile->type == ADD_DIR && tv_set_extra_library_path) |
| | 657 | rv = (*tv_set_extra_library_path) (addfile->name); |
| | 658 | else |
| | 659 | rv = LDPS_ERR; |
| | 660 | if (rv != LDPS_OK) |
| | 661 | return rv; |
| | 662 | } |
| | 663 | fflush (NULL); |
| | 664 | return all_symbols_read_ret; |
| | 665 | } |
| | 666 | |
| | 667 | /* Standard plugin API registerable hook. */ |
| | 668 | static enum ld_plugin_status |
| | 669 | oncleanup (void) |
| | 670 | { |
| | 671 | TV_MESSAGE (LDPL_INFO, "hook called: cleanup."); |
| | 672 | fflush (NULL); |
| | 673 | return cleanup_ret; |
| | 674 | } |
projects / deliverable / binutils-gdb.git / blame_incremental