1# This shell script emits a C file. -*- C -*- 2# Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 3# 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 23# This file is sourced from elf32.em, and defines extra powerpc64-elf 24# specific routines. 25# 26fragment <<EOF 27 28#include "ldctor.h" 29#include "libbfd.h" 30#include "elf-bfd.h" 31#include "elf64-ppc.h" 32 33/* Fake input file for stubs. */ 34static lang_input_statement_type *stub_file; 35static int stub_added = 0; 36 37/* Whether we need to call ppc_layout_sections_again. */ 38static int need_laying_out = 0; 39 40/* Maximum size of a group of input sections that can be handled by 41 one stub section. A value of +/-1 indicates the bfd back-end 42 should use a suitable default size. */ 43static bfd_signed_vma group_size = 1; 44 45/* Whether to add ".foo" entries for each "foo" in a version script. */ 46static int dotsyms = 1; 47 48/* Whether to run tls optimization. */ 49static int no_tls_opt = 0; 50static int no_tls_get_addr_opt = 0; 51 52/* Whether to run opd optimization. */ 53static int no_opd_opt = 0; 54 55/* Whether to run toc optimization. */ 56static int no_toc_opt = 0; 57 58/* Whether to allow multiple toc sections. */ 59static int no_multi_toc = 0; 60 61/* Whether to sort input toc and got sections. */ 62static int no_toc_sort = 0; 63 64/* Whether to emit symbols for stubs. */ 65static int emit_stub_syms = -1; 66 67static asection *toc_section = 0; 68 69/* Whether to canonicalize .opd so that there are no overlapping 70 .opd entries. */ 71static int non_overlapping_opd = 0; 72 73/* This is called before the input files are opened. We create a new 74 fake input file to hold the stub sections. */ 75 76static void 77ppc_create_output_section_statements (void) 78{ 79 if (!(bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour 80 && elf_object_id (link_info.output_bfd) == PPC64_ELF_DATA)) 81 return; 82 83 link_info.wrap_char = '.'; 84 85 stub_file = lang_add_input_file ("linker stubs", 86 lang_input_file_is_fake_enum, 87 NULL); 88 stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd); 89 if (stub_file->the_bfd == NULL 90 || !bfd_set_arch_mach (stub_file->the_bfd, 91 bfd_get_arch (link_info.output_bfd), 92 bfd_get_mach (link_info.output_bfd))) 93 { 94 einfo ("%F%P: can not create BFD %E\n"); 95 return; 96 } 97 98 stub_file->the_bfd->flags |= BFD_LINKER_CREATED; 99 ldlang_add_file (stub_file); 100 ppc64_elf_init_stub_bfd (stub_file->the_bfd, &link_info); 101} 102 103/* Move the input section statement at *U which happens to be on LIST 104 to be just before *TO. */ 105 106static void 107move_input_section (lang_statement_list_type *list, 108 lang_statement_union_type **u, 109 lang_statement_union_type **to) 110{ 111 lang_statement_union_type *s = *u; 112 asection *i = s->input_section.section; 113 asection *p, *n; 114 115 /* Snip the input section from the statement list. If it was the 116 last statement, fix the list tail pointer. */ 117 *u = s->header.next; 118 if (*u == NULL) 119 list->tail = u; 120 /* Add it back in the new position. */ 121 s->header.next = *to; 122 *to = s; 123 if (list->tail == to) 124 list->tail = &s->header.next; 125 126 /* Trim I off the bfd map_head/map_tail doubly linked lists. */ 127 n = i->map_head.s; 128 p = i->map_tail.s; 129 (p != NULL ? p : i->output_section)->map_head.s = n; 130 (n != NULL ? n : i->output_section)->map_tail.s = p; 131 132 /* Add I back on in its new position. */ 133 if (s->header.next->header.type == lang_input_section_enum) 134 { 135 n = s->header.next->input_section.section; 136 p = n->map_tail.s; 137 } 138 else 139 { 140 /* If the next statement is not an input section statement then 141 TO must point at the previous input section statement 142 header.next field. */ 143 lang_input_section_type *prev = (lang_input_section_type *) 144 ((char *) to - offsetof (lang_statement_union_type, header.next)); 145 146 ASSERT (prev->header.type == lang_input_section_enum); 147 p = prev->section; 148 n = p->map_head.s; 149 } 150 i->map_head.s = n; 151 i->map_tail.s = p; 152 (p != NULL ? p : i->output_section)->map_head.s = i; 153 (n != NULL ? n : i->output_section)->map_tail.s = i; 154} 155 156/* Sort input section statements in the linker script tree rooted at 157 LIST so that those whose owning bfd happens to have a section 158 called .init or .fini are placed first. Place any TOC sections 159 referenced by small TOC relocs next, with TOC sections referenced 160 only by bigtoc relocs last. */ 161 162static void 163sort_toc_sections (lang_statement_list_type *list, 164 lang_statement_union_type **ini, 165 lang_statement_union_type **small) 166{ 167 lang_statement_union_type *s, **u; 168 asection *i; 169 170 u = &list->head; 171 while ((s = *u) != NULL) 172 { 173 switch (s->header.type) 174 { 175 case lang_wild_statement_enum: 176 sort_toc_sections (&s->wild_statement.children, ini, small); 177 break; 178 179 case lang_group_statement_enum: 180 sort_toc_sections (&s->group_statement.children, ini, small); 181 break; 182 183 case lang_input_section_enum: 184 i = s->input_section.section; 185 /* Leave the stub_file .got where it is. We put the .got 186 header there. */ 187 if (i->owner == stub_file->the_bfd) 188 break; 189 if (bfd_get_section_by_name (i->owner, ".init") != NULL 190 || bfd_get_section_by_name (i->owner, ".fini") != NULL) 191 { 192 if (ini != NULL && *ini != s) 193 { 194 move_input_section (list, u, ini); 195 if (small == ini) 196 small = &s->header.next; 197 ini = &s->header.next; 198 continue; 199 } 200 if (small == ini) 201 small = &s->header.next; 202 ini = &s->header.next; 203 break; 204 } 205 else if (ini == NULL) 206 ini = u; 207 208 if (ppc64_elf_has_small_toc_reloc (i)) 209 { 210 if (small != NULL && *small != s) 211 { 212 move_input_section (list, u, small); 213 small = &s->header.next; 214 continue; 215 } 216 small = &s->header.next; 217 } 218 else if (small == NULL) 219 small = u; 220 break; 221 222 default: 223 break; 224 } 225 u = &s->header.next; 226 } 227} 228 229static void 230prelim_size_sections (void) 231{ 232 if (expld.phase != lang_mark_phase_enum) 233 { 234 expld.phase = lang_mark_phase_enum; 235 expld.dataseg.phase = exp_dataseg_none; 236 one_lang_size_sections_pass (NULL, FALSE); 237 /* We must not cache anything from the preliminary sizing. */ 238 lang_reset_memory_regions (); 239 } 240} 241 242static void 243ppc_before_allocation (void) 244{ 245 if (stub_file != NULL) 246 { 247 if (!no_opd_opt 248 && !ppc64_elf_edit_opd (&link_info, non_overlapping_opd)) 249 einfo ("%X%P: can not edit %s %E\n", "opd"); 250 251 if (ppc64_elf_tls_setup (&link_info, no_tls_get_addr_opt, &no_multi_toc) 252 && !no_tls_opt) 253 { 254 /* Size the sections. This is premature, but we want to know the 255 TLS segment layout so that certain optimizations can be done. */ 256 prelim_size_sections (); 257 258 if (!ppc64_elf_tls_optimize (&link_info)) 259 einfo ("%X%P: TLS problem %E\n"); 260 } 261 262 if (!no_toc_opt 263 && !link_info.relocatable) 264 { 265 prelim_size_sections (); 266 267 if (!ppc64_elf_edit_toc (&link_info)) 268 einfo ("%X%P: can not edit %s %E\n", "toc"); 269 } 270 271 if (!no_toc_sort) 272 { 273 lang_output_section_statement_type *toc_os; 274 275 toc_os = lang_output_section_find (".got"); 276 if (toc_os != NULL) 277 sort_toc_sections (&toc_os->children, NULL, NULL); 278 } 279 } 280 281 gld${EMULATION_NAME}_before_allocation (); 282} 283 284struct hook_stub_info 285{ 286 lang_statement_list_type add; 287 asection *input_section; 288}; 289 290/* Traverse the linker tree to find the spot where the stub goes. */ 291 292static bfd_boolean 293hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp) 294{ 295 lang_statement_union_type *l; 296 bfd_boolean ret; 297 298 for (; (l = *lp) != NULL; lp = &l->header.next) 299 { 300 switch (l->header.type) 301 { 302 case lang_constructors_statement_enum: 303 ret = hook_in_stub (info, &constructor_list.head); 304 if (ret) 305 return ret; 306 break; 307 308 case lang_output_section_statement_enum: 309 ret = hook_in_stub (info, 310 &l->output_section_statement.children.head); 311 if (ret) 312 return ret; 313 break; 314 315 case lang_wild_statement_enum: 316 ret = hook_in_stub (info, &l->wild_statement.children.head); 317 if (ret) 318 return ret; 319 break; 320 321 case lang_group_statement_enum: 322 ret = hook_in_stub (info, &l->group_statement.children.head); 323 if (ret) 324 return ret; 325 break; 326 327 case lang_input_section_enum: 328 if (l->input_section.section == info->input_section) 329 { 330 /* We've found our section. Insert the stub immediately 331 before its associated input section. */ 332 *lp = info->add.head; 333 *(info->add.tail) = l; 334 return TRUE; 335 } 336 break; 337 338 case lang_data_statement_enum: 339 case lang_reloc_statement_enum: 340 case lang_object_symbols_statement_enum: 341 case lang_output_statement_enum: 342 case lang_target_statement_enum: 343 case lang_input_statement_enum: 344 case lang_assignment_statement_enum: 345 case lang_padding_statement_enum: 346 case lang_address_statement_enum: 347 case lang_fill_statement_enum: 348 break; 349 350 default: 351 FAIL (); 352 break; 353 } 354 } 355 return FALSE; 356} 357 358 359/* Call-back for ppc64_elf_size_stubs. */ 360 361/* Create a new stub section, and arrange for it to be linked 362 immediately before INPUT_SECTION. */ 363 364static asection * 365ppc_add_stub_section (const char *stub_sec_name, asection *input_section) 366{ 367 asection *stub_sec; 368 flagword flags; 369 asection *output_section; 370 const char *secname; 371 lang_output_section_statement_type *os; 372 struct hook_stub_info info; 373 374 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE 375 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_KEEP); 376 stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd, 377 stub_sec_name, flags); 378 if (stub_sec == NULL) 379 goto err_ret; 380 381 output_section = input_section->output_section; 382 secname = bfd_get_section_name (output_section->owner, output_section); 383 os = lang_output_section_find (secname); 384 385 info.input_section = input_section; 386 lang_list_init (&info.add); 387 lang_add_section (&info.add, stub_sec, os); 388 389 if (info.add.head == NULL) 390 goto err_ret; 391 392 stub_added = 1; 393 if (hook_in_stub (&info, &os->children.head)) 394 return stub_sec; 395 396 err_ret: 397 einfo ("%X%P: can not make stub section: %E\n"); 398 return NULL; 399} 400 401 402/* Another call-back for ppc64_elf_size_stubs. */ 403 404static void 405ppc_layout_sections_again (void) 406{ 407 /* If we have changed sizes of the stub sections, then we need 408 to recalculate all the section offsets. This may mean we need to 409 add even more stubs. */ 410 gld${EMULATION_NAME}_map_segments (TRUE); 411 412 if (!link_info.relocatable) 413 _bfd_set_gp_value (link_info.output_bfd, 414 ppc64_elf_toc (link_info.output_bfd)); 415 416 need_laying_out = -1; 417} 418 419 420static void 421build_toc_list (lang_statement_union_type *statement) 422{ 423 if (statement->header.type == lang_input_section_enum) 424 { 425 asection *i = statement->input_section.section; 426 427 if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag 428 && (i->flags & SEC_EXCLUDE) == 0 429 && i->output_section == toc_section) 430 { 431 if (!ppc64_elf_next_toc_section (&link_info, i)) 432 einfo ("%X%P: linker script separates .got and .toc\n"); 433 } 434 } 435} 436 437 438static void 439build_section_lists (lang_statement_union_type *statement) 440{ 441 if (statement->header.type == lang_input_section_enum) 442 { 443 asection *i = statement->input_section.section; 444 445 if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag 446 && (i->flags & SEC_EXCLUDE) == 0 447 && i->output_section != NULL 448 && i->output_section->owner == link_info.output_bfd) 449 { 450 if (!ppc64_elf_next_input_section (&link_info, i)) 451 einfo ("%X%P: can not size stub section: %E\n"); 452 } 453 } 454} 455 456 457/* Call the back-end function to set TOC base after we have placed all 458 the sections. */ 459static void 460gld${EMULATION_NAME}_after_allocation (void) 461{ 462 /* bfd_elf_discard_info just plays with data and debugging sections, 463 ie. doesn't affect code size, so we can delay resizing the 464 sections. It's likely we'll resize everything in the process of 465 adding stubs. */ 466 if (bfd_elf_discard_info (link_info.output_bfd, &link_info)) 467 need_laying_out = 1; 468 469 /* If generating a relocatable output file, then we don't have any 470 stubs. */ 471 if (stub_file != NULL && !link_info.relocatable) 472 { 473 int ret = ppc64_elf_setup_section_lists (&link_info, 474 &ppc_add_stub_section, 475 &ppc_layout_sections_again); 476 if (ret < 0) 477 einfo ("%X%P: can not size stub section: %E\n"); 478 else if (ret > 0) 479 { 480 ppc64_elf_start_multitoc_partition (&link_info); 481 482 if (!no_multi_toc) 483 { 484 toc_section = bfd_get_section_by_name (link_info.output_bfd, 485 ".got"); 486 if (toc_section != NULL) 487 lang_for_each_statement (build_toc_list); 488 } 489 490 if (ppc64_elf_layout_multitoc (&link_info) 491 && !no_multi_toc 492 && toc_section != NULL) 493 lang_for_each_statement (build_toc_list); 494 495 ppc64_elf_finish_multitoc_partition (&link_info); 496 497 lang_for_each_statement (build_section_lists); 498 499 if (!ppc64_elf_check_init_fini (&link_info)) 500 einfo ("%P: .init/.fini fragments use differing TOC pointers\n"); 501 502 /* Call into the BFD backend to do the real work. */ 503 if (!ppc64_elf_size_stubs (&link_info, group_size)) 504 einfo ("%X%P: can not size stub section: %E\n"); 505 } 506 } 507 508 if (need_laying_out != -1) 509 { 510 gld${EMULATION_NAME}_map_segments (need_laying_out); 511 512 if (!link_info.relocatable) 513 _bfd_set_gp_value (link_info.output_bfd, 514 ppc64_elf_toc (link_info.output_bfd)); 515 } 516} 517 518 519/* Final emulation specific call. */ 520 521static void 522gld${EMULATION_NAME}_finish (void) 523{ 524 /* e_entry on PowerPC64 points to the function descriptor for 525 _start. If _start is missing, default to the first function 526 descriptor in the .opd section. */ 527 entry_section = ".opd"; 528 529 if (link_info.relocatable) 530 { 531 asection *toc = bfd_get_section_by_name (link_info.output_bfd, ".toc"); 532 if (toc != NULL 533 && bfd_section_size (link_info.output_bfd, toc) > 0x10000) 534 einfo ("%X%P: TOC section size exceeds 64k\n"); 535 } 536 537 if (stub_added) 538 { 539 char *msg = NULL; 540 char *line, *endline; 541 542 if (emit_stub_syms < 0) 543 emit_stub_syms = 1; 544 if (!ppc64_elf_build_stubs (emit_stub_syms, &link_info, 545 config.stats ? &msg : NULL)) 546 einfo ("%X%P: can not build stubs: %E\n"); 547 548 fflush (stdout); 549 for (line = msg; line != NULL; line = endline) 550 { 551 endline = strchr (line, '\n'); 552 if (endline != NULL) 553 *endline++ = '\0'; 554 fprintf (stderr, "%s: %s\n", program_name, line); 555 } 556 fflush (stderr); 557 if (msg != NULL) 558 free (msg); 559 } 560 561 ppc64_elf_restore_symbols (&link_info); 562 finish_default (); 563} 564 565 566/* Add a pattern matching ".foo" for every "foo" in a version script. 567 568 The reason for doing this is that many shared library version 569 scripts export a selected set of functions or data symbols, forcing 570 others local. eg. 571 572 . VERS_1 { 573 . global: 574 . this; that; some; thing; 575 . local: 576 . *; 577 . }; 578 579 To make the above work for PowerPC64, we need to export ".this", 580 ".that" and so on, otherwise only the function descriptor syms are 581 exported. Lack of an exported function code sym may cause a 582 definition to be pulled in from a static library. */ 583 584static struct bfd_elf_version_expr * 585gld${EMULATION_NAME}_new_vers_pattern (struct bfd_elf_version_expr *entry) 586{ 587 struct bfd_elf_version_expr *dot_entry; 588 unsigned int len; 589 char *dot_pat; 590 591 if (!dotsyms 592 || entry->pattern[0] == '.' 593 || (!entry->literal && entry->pattern[0] == '*')) 594 return entry; 595 596 dot_entry = xmalloc (sizeof *dot_entry); 597 *dot_entry = *entry; 598 dot_entry->next = entry; 599 len = strlen (entry->pattern) + 2; 600 dot_pat = xmalloc (len); 601 dot_pat[0] = '.'; 602 memcpy (dot_pat + 1, entry->pattern, len - 1); 603 dot_entry->pattern = dot_pat; 604 dot_entry->script = 1; 605 return dot_entry; 606} 607 608 609/* Avoid processing the fake stub_file in vercheck, stat_needed and 610 check_needed routines. */ 611 612static void (*real_func) (lang_input_statement_type *); 613 614static void ppc_for_each_input_file_wrapper (lang_input_statement_type *l) 615{ 616 if (l != stub_file) 617 (*real_func) (l); 618} 619 620static void 621ppc_lang_for_each_input_file (void (*func) (lang_input_statement_type *)) 622{ 623 real_func = func; 624 lang_for_each_input_file (&ppc_for_each_input_file_wrapper); 625} 626 627#define lang_for_each_input_file ppc_lang_for_each_input_file 628 629EOF 630 631if grep -q 'ld_elf32_spu_emulation' ldemul-list.h; then 632 fragment <<EOF 633/* Special handling for embedded SPU executables. */ 634extern bfd_boolean embedded_spu_file (lang_input_statement_type *, const char *); 635static bfd_boolean gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *); 636 637static bfd_boolean 638ppc64_recognized_file (lang_input_statement_type *entry) 639{ 640 if (embedded_spu_file (entry, "-m64")) 641 return TRUE; 642 643 return gld${EMULATION_NAME}_load_symbols (entry); 644} 645EOF 646LDEMUL_RECOGNIZED_FILE=ppc64_recognized_file 647fi 648 649# Define some shell vars to insert bits of code into the standard elf 650# parse_args and list_options functions. 651# 652PARSE_AND_LIST_PROLOGUE=' 653#define OPTION_STUBGROUP_SIZE 301 654#define OPTION_STUBSYMS (OPTION_STUBGROUP_SIZE + 1) 655#define OPTION_NO_STUBSYMS (OPTION_STUBSYMS + 1) 656#define OPTION_DOTSYMS (OPTION_NO_STUBSYMS + 1) 657#define OPTION_NO_DOTSYMS (OPTION_DOTSYMS + 1) 658#define OPTION_NO_TLS_OPT (OPTION_NO_DOTSYMS + 1) 659#define OPTION_NO_TLS_GET_ADDR_OPT (OPTION_NO_TLS_OPT + 1) 660#define OPTION_NO_OPD_OPT (OPTION_NO_TLS_GET_ADDR_OPT + 1) 661#define OPTION_NO_TOC_OPT (OPTION_NO_OPD_OPT + 1) 662#define OPTION_NO_MULTI_TOC (OPTION_NO_TOC_OPT + 1) 663#define OPTION_NO_TOC_SORT (OPTION_NO_MULTI_TOC + 1) 664#define OPTION_NON_OVERLAPPING_OPD (OPTION_NO_TOC_SORT + 1) 665' 666 667PARSE_AND_LIST_LONGOPTS=' 668 { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE }, 669 { "emit-stub-syms", no_argument, NULL, OPTION_STUBSYMS }, 670 { "no-emit-stub-syms", no_argument, NULL, OPTION_NO_STUBSYMS }, 671 { "dotsyms", no_argument, NULL, OPTION_DOTSYMS }, 672 { "no-dotsyms", no_argument, NULL, OPTION_NO_DOTSYMS }, 673 { "no-tls-optimize", no_argument, NULL, OPTION_NO_TLS_OPT }, 674 { "no-tls-get-addr-optimize", no_argument, NULL, OPTION_NO_TLS_GET_ADDR_OPT }, 675 { "no-opd-optimize", no_argument, NULL, OPTION_NO_OPD_OPT }, 676 { "no-toc-optimize", no_argument, NULL, OPTION_NO_TOC_OPT }, 677 { "no-multi-toc", no_argument, NULL, OPTION_NO_MULTI_TOC }, 678 { "no-toc-sort", no_argument, NULL, OPTION_NO_TOC_SORT }, 679 { "non-overlapping-opd", no_argument, NULL, OPTION_NON_OVERLAPPING_OPD }, 680' 681 682PARSE_AND_LIST_OPTIONS=' 683 fprintf (file, _("\ 684 --stub-group-size=N Maximum size of a group of input sections that\n\ 685 can be handled by one stub section. A negative\n\ 686 value locates all stubs before their branches\n\ 687 (with a group size of -N), while a positive\n\ 688 value allows two groups of input sections, one\n\ 689 before, and one after each stub section.\n\ 690 Values of +/-1 indicate the linker should\n\ 691 choose suitable defaults.\n" 692 )); 693 fprintf (file, _("\ 694 --emit-stub-syms Label linker stubs with a symbol.\n" 695 )); 696 fprintf (file, _("\ 697 --no-emit-stub-syms Don'\''t label linker stubs with a symbol.\n" 698 )); 699 fprintf (file, _("\ 700 --dotsyms For every version pattern \"foo\" in a version\n\ 701 script, add \".foo\" so that function code\n\ 702 symbols are treated the same as function\n\ 703 descriptor symbols. Defaults to on.\n" 704 )); 705 fprintf (file, _("\ 706 --no-dotsyms Don'\''t do anything special in version scripts.\n" 707 )); 708 fprintf (file, _("\ 709 --no-tls-optimize Don'\''t try to optimize TLS accesses.\n" 710 )); 711 fprintf (file, _("\ 712 --no-tls-get-addr-optimize Don'\''t use a special __tls_get_addr call.\n" 713 )); 714 fprintf (file, _("\ 715 --no-opd-optimize Don'\''t optimize the OPD section.\n" 716 )); 717 fprintf (file, _("\ 718 --no-toc-optimize Don'\''t optimize the TOC section.\n" 719 )); 720 fprintf (file, _("\ 721 --no-multi-toc Disallow automatic multiple toc sections.\n" 722 )); 723 fprintf (file, _("\ 724 --no-toc-sort Don'\''t sort TOC and GOT sections.\n" 725 )); 726 fprintf (file, _("\ 727 --non-overlapping-opd Canonicalize .opd, so that there are no\n\ 728 overlapping .opd entries.\n" 729 )); 730' 731 732PARSE_AND_LIST_ARGS_CASES=' 733 case OPTION_STUBGROUP_SIZE: 734 { 735 const char *end; 736 group_size = bfd_scan_vma (optarg, &end, 0); 737 if (*end) 738 einfo (_("%P%F: invalid number `%s'\''\n"), optarg); 739 } 740 break; 741 742 case OPTION_STUBSYMS: 743 emit_stub_syms = 1; 744 break; 745 746 case OPTION_NO_STUBSYMS: 747 emit_stub_syms = 0; 748 break; 749 750 case OPTION_DOTSYMS: 751 dotsyms = 1; 752 break; 753 754 case OPTION_NO_DOTSYMS: 755 dotsyms = 0; 756 break; 757 758 case OPTION_NO_TLS_OPT: 759 no_tls_opt = 1; 760 break; 761 762 case OPTION_NO_TLS_GET_ADDR_OPT: 763 no_tls_get_addr_opt = 1; 764 break; 765 766 case OPTION_NO_OPD_OPT: 767 no_opd_opt = 1; 768 break; 769 770 case OPTION_NO_TOC_OPT: 771 no_toc_opt = 1; 772 break; 773 774 case OPTION_NO_MULTI_TOC: 775 no_multi_toc = 1; 776 break; 777 778 case OPTION_NO_TOC_SORT: 779 no_toc_sort = 1; 780 break; 781 782 case OPTION_NON_OVERLAPPING_OPD: 783 non_overlapping_opd = 1; 784 break; 785' 786 787# Put these extra ppc64elf routines in ld_${EMULATION_NAME}_emulation 788# 789LDEMUL_BEFORE_ALLOCATION=ppc_before_allocation 790LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation 791LDEMUL_FINISH=gld${EMULATION_NAME}_finish 792LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=ppc_create_output_section_statements 793LDEMUL_NEW_VERS_PATTERN=gld${EMULATION_NAME}_new_vers_pattern 794