ld/testplug3.c

   1 /* Test plugin for the GNU linker.  Check non-object IR file and calling
   2    release_input_file from onclaim_file.
   3    Copyright (C) 2015-2019 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
 129 /* The master list of all claimable/claimed files.  */
 130 static claim_file_t *claimfiles_list = NULL;
 131
 132 /* We keep a tail pointer for easy linking on the end.  */
 133 static claim_file_t **claimfiles_tail_chain_ptr = &claimfiles_list;
 134
 135 /* The last claimed file added to the list, for receiving syms.  */
 136 static claim_file_t *last_claimfile = NULL;
 137
 138 /* The master list of all files to add to the final link.  */
 139 static add_file_t *addfiles_list = NULL;
 140
 141 /* We keep a tail pointer for easy linking on the end.  */
 142 static add_file_t **addfiles_tail_chain_ptr = &addfiles_list;
 143
 144 /* Add a new claimfile on the end of the chain.  */
 145 static enum ld_plugin_status
 146 record_claim_file (const char *file, off_t filesize)
 147 {
 148   claim_file_t *newfile;
 149
 150   newfile = malloc (sizeof *newfile);
 151   if (!newfile)
 152     return LDPS_ERR;
 153   memset (newfile, 0, sizeof *newfile);
 154   /* Only setup for now is remembering the name to look for.  */
 155   newfile->file.name = file;
 156   newfile->file.filesize = filesize;
 157   /* Chain it on the end of the list.  */
 158   *claimfiles_tail_chain_ptr = newfile;
 159   claimfiles_tail_chain_ptr = &newfile->next;
 160   /* Record it as active for receiving symbols to register.  */
 161   last_claimfile = newfile;
 162   return LDPS_OK;
 163 }
 164
 165 /* Add a new addfile on the end of the chain.  */
 166 static enum ld_plugin_status
 167 record_add_file (const char *file, addfile_enum_t type)
 168 {
 169   add_file_t *newfile;
 170
 171   newfile = malloc (sizeof *newfile);
 172   if (!newfile)
 173     return LDPS_ERR;
 174   newfile->next = NULL;
 175   newfile->name = file;
 176   newfile->type = type;
 177   /* Chain it on the end of the list.  */
 178   *addfiles_tail_chain_ptr = newfile;
 179   addfiles_tail_chain_ptr = &newfile->next;
 180   return LDPS_OK;
 181 }
 182
 183 /* Parse a command-line argument string into a symbol definition.
 184    Symbol-strings follow the colon-separated format:
 185         NAME:VERSION:def:vis:size:COMDATKEY
 186    where the fields in capitals are strings and those in lower
 187    case are integers.  We don't allow to specify a resolution as
 188    doing so is not meaningful when calling the add symbols hook.  */
 189 static enum ld_plugin_status
 190 parse_symdefstr (const char *str, struct ld_plugin_symbol *sym)
 191 {
 192   int n;
 193   long long size;
 194   const char *colon1, *colon2, *colon5;
 195
 196   /* Locate the colons separating the first two strings.  */
 197   colon1 = strchr (str, ':');
 198   if (!colon1)
 199     return LDPS_ERR;
 200   colon2 = strchr (colon1+1, ':');
 201   if (!colon2)
 202     return LDPS_ERR;
 203   /* Name must not be empty (version may be).  */
 204   if (colon1 == str)
 205     return LDPS_ERR;
 206
 207   /* The fifth colon and trailing comdat key string are optional,
 208      but the intermediate ones must all be present.  */
 209   colon5 = strchr (colon2+1, ':');      /* Actually only third so far.  */
 210   if (!colon5)
 211     return LDPS_ERR;
 212   colon5 = strchr (colon5+1, ':');      /* Hopefully fourth now.  */
 213   if (!colon5)
 214     return LDPS_ERR;
 215   colon5 = strchr (colon5+1, ':');      /* Optional fifth now.  */
 216
 217   /* Finally we'll use sscanf to parse the numeric fields, then
 218      we'll split out the strings which we need to allocate separate
 219      storage for anyway so that we can add nul termination.  */
 220   n = sscanf (colon2 + 1, "%i:%i:%lli", &sym->def, &sym->visibility, &size);
 221   if (n != 3)
 222     return LDPS_ERR;
 223
 224   /* Parsed successfully, so allocate strings and fill out fields.  */
 225   sym->size = size;
 226   sym->resolution = LDPR_UNKNOWN;
 227   sym->name = malloc (colon1 - str + 1);
 228   if (!sym->name)
 229     return LDPS_ERR;
 230   memcpy (sym->name, str, colon1 - str);
 231   sym->name[colon1 - str] = '\0';
 232   if (colon2 > (colon1 + 1))
 233     {
 234       sym->version = malloc (colon2 - colon1);
 235       if (!sym->version)
 236         return LDPS_ERR;
 237       memcpy (sym->version, colon1 + 1, colon2 - (colon1 + 1));
 238       sym->version[colon2 - (colon1 + 1)] = '\0';
 239     }
 240   else
 241     sym->version = NULL;
 242   if (colon5 && colon5[1])
 243     {
 244       sym->comdat_key = malloc (strlen (colon5 + 1) + 1);
 245       if (!sym->comdat_key)
 246         return LDPS_ERR;
 247       strcpy (sym->comdat_key, colon5 + 1);
 248     }
 249   else
 250     sym->comdat_key = 0;
 251   return LDPS_OK;
 252 }
 253
 254 /* Record a symbol to be added for the last-added claimfile.  */
 255 static enum ld_plugin_status
 256 record_claimed_file_symbol (const char *symdefstr)
 257 {
 258   struct ld_plugin_symbol sym;
 259
 260   /* Can't add symbols except as belonging to claimed files.  */
 261   if (!last_claimfile)
 262     return LDPS_ERR;
 263
 264   /* If string doesn't parse correctly, give an error.  */
 265   if (parse_symdefstr (symdefstr, &sym) != LDPS_OK)
 266     return LDPS_ERR;
 267
 268   /* Check for enough space, resize array if needed, and add it.  */
 269   if (last_claimfile->n_syms_allocated == last_claimfile->n_syms_used)
 270     {
 271       int new_n_syms = last_claimfile->n_syms_allocated
 272                         ? 2 * last_claimfile->n_syms_allocated
 273                         : 10;
 274       last_claimfile->symbols = realloc (last_claimfile->symbols,
 275                         new_n_syms * sizeof *last_claimfile->symbols);
 276       if (!last_claimfile->symbols)
 277         return LDPS_ERR;
 278       last_claimfile->n_syms_allocated = new_n_syms;
 279     }
 280   last_claimfile->symbols[last_claimfile->n_syms_used++] = sym;
 281
 282   return LDPS_OK;
 283 }
 284
 285 /* Records the status to return from one of the registered hooks.  */
 286 static enum ld_plugin_status
 287 set_ret_val (const char *whichval, enum ld_plugin_status retval)
 288 {
 289   if (!strcmp ("onload", whichval))
 290     onload_ret = retval;
 291   else if (!strcmp ("claimfile", whichval))
 292     claim_file_ret = retval;
 293   else if (!strcmp ("allsymbolsread", whichval))
 294     all_symbols_read_ret = retval;
 295   else if (!strcmp ("cleanup", whichval))
 296     cleanup_ret = retval;
 297   else
 298     return LDPS_ERR;
 299   return LDPS_OK;
 300 }
 301
 302 /* Records hooks which should be registered.  */
 303 static enum ld_plugin_status
 304 set_register_hook (const char *whichhook, bfd_boolean yesno)
 305 {
 306   if (!strcmp ("claimfile", whichhook))
 307     register_claimfile_hook = yesno;
 308   else if (!strcmp ("allsymbolsread", whichhook))
 309     register_allsymbolsread_hook = yesno;
 310   else if (!strcmp ("cleanup", whichhook))
 311     register_cleanup_hook = yesno;
 312   else
 313     return LDPS_ERR;
 314   return LDPS_OK;
 315 }
 316
 317 /* Determine type of plugin option and pass to individual parsers.  */
 318 static enum ld_plugin_status
 319 parse_option (const char *opt)
 320 {
 321   if (!strncmp ("fail", opt, 4))
 322     return set_ret_val (opt + 4, LDPS_ERR);
 323   else if (!strncmp ("pass", opt, 4))
 324     return set_ret_val (opt + 4, LDPS_OK);
 325   else if (!strncmp ("register", opt, 8))
 326     return set_register_hook (opt + 8, TRUE);
 327   else if (!strncmp ("noregister", opt, 10))
 328     return set_register_hook (opt + 10, FALSE);
 329   else if (!strncmp ("claim:", opt, 6))
 330     return record_claim_file (opt + 6, 0);
 331   else if (!strncmp ("sym:", opt, 4))
 332     return record_claimed_file_symbol (opt + 4);
 333   else if (!strncmp ("add:", opt, 4))
 334     return record_add_file (opt + 4, ADD_FILE);
 335   else if (!strncmp ("lib:", opt, 4))
 336     return record_add_file (opt + 4, ADD_LIB);
 337   else if (!strncmp ("dir:", opt, 4))
 338     return record_add_file (opt + 4, ADD_DIR);
 339   else if (!strcmp ("dumpresolutions", opt))
 340     dumpresolutions = TRUE;
 341   else
 342     return LDPS_ERR;
 343   return LDPS_OK;
 344 }
 345
 346 /* Handle/record information received in a transfer vector entry.  */
 347 static enum ld_plugin_status
 348 parse_tv_tag (struct ld_plugin_tv *tv)
 349 {
 350 #define SETVAR(x) x = tv->tv_u.x
 351   switch (tv->tv_tag)
 352     {
 353       case LDPT_OPTION:
 354         return parse_option (tv->tv_u.tv_string);
 355       case LDPT_NULL:
 356       case LDPT_GOLD_VERSION:
 357       case LDPT_GNU_LD_VERSION:
 358       case LDPT_API_VERSION:
 359       default:
 360         break;
 361       case LDPT_OUTPUT_NAME:
 362         output_name = tv->tv_u.tv_string;
 363         break;
 364       case LDPT_LINKER_OUTPUT:
 365         linker_output = tv->tv_u.tv_val;
 366         break;
 367       case LDPT_REGISTER_CLAIM_FILE_HOOK:
 368         SETVAR(tv_register_claim_file);
 369         break;
 370       case LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK:
 371         SETVAR(tv_register_all_symbols_read);
 372         break;
 373       case LDPT_REGISTER_CLEANUP_HOOK:
 374         SETVAR(tv_register_cleanup);
 375         break;
 376       case LDPT_ADD_SYMBOLS:
 377         SETVAR(tv_add_symbols);
 378         break;
 379       case LDPT_GET_SYMBOLS:
 380         SETVAR(tv_get_symbols);
 381         break;
 382       case LDPT_GET_SYMBOLS_V2:
 383         tv_get_symbols_v2 = tv->tv_u.tv_get_symbols;
 384         break;
 385       case LDPT_ADD_INPUT_FILE:
 386         SETVAR(tv_add_input_file);
 387         break;
 388       case LDPT_MESSAGE:
 389         SETVAR(tv_message);
 390         break;
 391       case LDPT_GET_INPUT_FILE:
 392         SETVAR(tv_get_input_file);
 393         break;
 394       case LDPT_GET_VIEW:
 395         SETVAR(tv_get_view);
 396         break;
 397       case LDPT_RELEASE_INPUT_FILE:
 398         SETVAR(tv_release_input_file);
 399         break;
 400       case LDPT_ADD_INPUT_LIBRARY:
 401         SETVAR(tv_add_input_library);
 402         break;
 403       case LDPT_SET_EXTRA_LIBRARY_PATH:
 404         SETVAR(tv_set_extra_library_path);
 405         break;
 406     }
 407 #undef SETVAR
 408   return LDPS_OK;
 409 }
 410
 411 /* Standard plugin API entry point.  */
 412 enum ld_plugin_status
 413 onload (struct ld_plugin_tv *tv)
 414 {
 415   enum ld_plugin_status rv;
 416
 417   /* This plugin does nothing but dump the tv array.  It would
 418      be an error if this function was called without one.  */
 419   if (!tv)
 420     return LDPS_ERR;
 421
 422   /* First entry should always be LDPT_MESSAGE, letting us get
 423      hold of it easily so we can send output straight away.  */
 424   if (tv[0].tv_tag == LDPT_MESSAGE)
 425     tv_message = tv[0].tv_u.tv_message;
 426
 427   do
 428     if ((rv = parse_tv_tag (tv)) != LDPS_OK)
 429       return rv;
 430   while ((tv++)->tv_tag != LDPT_NULL);
 431
 432   /* Register hooks only if instructed by options.  */
 433   if (register_claimfile_hook)
 434     {
 435       if (!tv_register_claim_file)
 436         {
 437           TV_MESSAGE (LDPL_FATAL, "No register_claim_file hook");
 438           fflush (NULL);
 439           return LDPS_ERR;
 440         }
 441       (*tv_register_claim_file) (onclaim_file);
 442     }
 443   if (register_allsymbolsread_hook)
 444     {
 445       if (!tv_register_all_symbols_read)
 446         {
 447           TV_MESSAGE (LDPL_FATAL, "No register_all_symbols_read hook");
 448           fflush (NULL);
 449           return LDPS_ERR;
 450         }
 451       (*tv_register_all_symbols_read) (onall_symbols_read);
 452     }
 453   if (register_cleanup_hook)
 454     {
 455       if (!tv_register_cleanup)
 456         {
 457           TV_MESSAGE (LDPL_FATAL, "No register_cleanup hook");
 458           fflush (NULL);
 459           return LDPS_ERR;
 460         }
 461       (*tv_register_cleanup) (oncleanup);
 462     }
 463
 464   /* Claim testsuite/ld-plugin/func.c, standalone or in a library.  Its
 465      size must be SIZE_OF_FUNC_C bytes.  */
 466 #define SIZE_OF_FUNC_C  248
 467   if (onload_ret == LDPS_OK
 468       && (record_claim_file ("func.c", SIZE_OF_FUNC_C) != LDPS_OK
 469           || record_claimed_file_symbol ("func::0:0:0") != LDPS_OK
 470           || record_claimed_file_symbol ("_func::0:0:0") != LDPS_OK
 471           || record_claim_file ("libfunc.a", SIZE_OF_FUNC_C) != LDPS_OK
 472           || record_claimed_file_symbol ("func::0:0:0") != LDPS_OK
 473           || record_claimed_file_symbol ("_func::0:0:0") != LDPS_OK))
 474     onload_ret = LDPS_ERR;
 475
 476   return onload_ret;
 477 }
 478
 479 char *
 480 xstrdup (const char *s)
 481 {
 482   size_t len = strlen (s) + 1;
 483   char *ret = malloc (len + 1);
 484   return (char *) memcpy (ret, s, len);
 485 }
 486
 487 /* Standard plugin API registerable hook.  */
 488 static enum ld_plugin_status
 489 onclaim_file (const struct ld_plugin_input_file *file, int *claimed)
 490 {
 491   /* Let's see if we want to claim this file.  */
 492   claim_file_t *claimfile = claimfiles_list;
 493   size_t len = strlen (file->name);
 494   char *name = xstrdup (file->name);
 495   char *p = name + len;
 496   bfd_boolean islib;
 497
 498   /* Only match the file name without the directory part.  */
 499   islib = *p == 'a' && *(p - 1) == '.';
 500   for (; p != name; p--)
 501     if (IS_DIR_SEPARATOR (*p))
 502       {
 503         p++;
 504         break;
 505       }
 506
 507   while (claimfile)
 508     {
 509       /* Claim the file only if the file name and size match and don't
 510          match the whole library.  */
 511       if (!strcmp (p, claimfile->file.name)
 512           && claimfile->file.filesize == file->filesize
 513           && (!islib || file->offset != 0))
 514         break;
 515       claimfile = claimfile->next;
 516     }
 517
 518   free (name);
 519
 520   /* If we decided to claim it, record that fact, and add any symbols
 521      that were defined for it by plugin options.  */
 522   *claimed = (claimfile != 0);
 523   if (claimfile)
 524     {
 525       char buffer[30];
 526       int fd;
 527
 528       TV_MESSAGE (LDPL_INFO, "Claimed: %s [@%ld/%ld]", file->name,
 529                   (long)file->offset, (long)file->filesize);
 530
 531       claimfile->claimed = TRUE;
 532       claimfile->file = *file;
 533       if (claimfile->n_syms_used && !tv_add_symbols)
 534         claim_file_ret = LDPS_ERR;
 535       else if (claimfile->n_syms_used)
 536         claim_file_ret = (*tv_add_symbols) (claimfile->file.handle,
 537                                             claimfile->n_syms_used,
 538                                             claimfile->symbols);
 539
 540       fd = claimfile->file.fd;
 541       name = xstrdup (claimfile->file.name);
 542       claim_file_ret = tv_release_input_file (claimfile->file.handle);
 543       if (claim_file_ret != LDPS_OK)
 544         {
 545           free (name);
 546           return claim_file_ret;
 547         }
 548       if (read (fd, buffer, sizeof (buffer)) >= 0)
 549         {
 550           claim_file_ret = LDPS_ERR;
 551           TV_MESSAGE (LDPL_FATAL, "Unreleased file descriptor on: %s", name);
 552         }
 553       free (name);
 554     }
 555
 556   return claim_file_ret;
 557 }
 558
 559 /* Standard plugin API registerable hook.  */
 560 static enum ld_plugin_status
 561 onall_symbols_read (void)
 562 {
 563   static const char *resolutions[] =
 564     {
 565       "LDPR_UNKNOWN",
 566       "LDPR_UNDEF",
 567       "LDPR_PREVAILING_DEF",
 568       "LDPR_PREVAILING_DEF_IRONLY",
 569       "LDPR_PREEMPTED_REG",
 570       "LDPR_PREEMPTED_IR",
 571       "LDPR_RESOLVED_IR",
 572       "LDPR_RESOLVED_EXEC",
 573       "LDPR_RESOLVED_DYN",
 574       "LDPR_PREVAILING_DEF_IRONLY_EXP",
 575     };
 576   claim_file_t *claimfile = dumpresolutions ? claimfiles_list : NULL;
 577   add_file_t *addfile = addfiles_list;
 578   TV_MESSAGE (LDPL_INFO, "hook called: all symbols read.");
 579   for ( ; claimfile; claimfile = claimfile->next)
 580     {
 581       enum ld_plugin_status rv;
 582       int n;
 583       if (claimfile->n_syms_used && !tv_get_symbols_v2)
 584         return LDPS_ERR;
 585       else if (!claimfile->n_syms_used)
 586         continue;
 587       else if (!claimfile->file.handle)
 588         continue;
 589       rv = tv_get_symbols_v2 (claimfile->file.handle, claimfile->n_syms_used,
 590                               claimfile->symbols);
 591       if (rv != LDPS_OK)
 592         return rv;
 593       for (n = 0; n < claimfile->n_syms_used; n++)
 594         TV_MESSAGE (LDPL_INFO, "Sym: '%s%s%s' Resolution: %s",
 595                     claimfile->symbols[n].name,
 596                     claimfile->symbols[n].version ? "@" : "",
 597                     (claimfile->symbols[n].version
 598                      ? claimfile->symbols[n].version : ""),
 599                     resolutions[claimfile->symbols[n].resolution]);
 600     }
 601   for ( ; addfile ; addfile = addfile->next)
 602     {
 603       enum ld_plugin_status rv;
 604       if (addfile->type == ADD_LIB && tv_add_input_library)
 605         rv = (*tv_add_input_library) (addfile->name);
 606       else if (addfile->type == ADD_FILE && tv_add_input_file)
 607         rv = (*tv_add_input_file) (addfile->name);
 608       else if (addfile->type == ADD_DIR && tv_set_extra_library_path)
 609         rv = (*tv_set_extra_library_path) (addfile->name);
 610       else
 611         rv = LDPS_ERR;
 612       if (rv != LDPS_OK)
 613         return rv;
 614     }
 615   fflush (NULL);
 616   return all_symbols_read_ret;
 617 }
 618
 619 /* Standard plugin API registerable hook.  */
 620 static enum ld_plugin_status
 621 oncleanup (void)
 622 {
 623   TV_MESSAGE (LDPL_INFO, "hook called: cleanup.");
 624   fflush (NULL);
 625   return cleanup_ret;
 626 }