1 /* ELF attributes support (based on ARM EABI attributes). 2 Copyright (C) 2005-2014 Free Software Foundation, Inc. 3 4 This file is part of BFD, the Binary File Descriptor library. 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 19 MA 02110-1301, USA. */ 20 21 #include "sysdep.h" 22 #include "bfd.h" 23 #include "libiberty.h" 24 #include "libbfd.h" 25 #include "elf-bfd.h" 26 27 /* Return the number of bytes needed by I in uleb128 format. */ 28 static int 29 uleb128_size (unsigned int i) 30 { 31 int size; 32 size = 1; 33 while (i >= 0x80) 34 { 35 i >>= 7; 36 size++; 37 } 38 return size; 39 } 40 41 /* Return TRUE if the attribute has the default value (0/""). */ 42 static bfd_boolean 43 is_default_attr (obj_attribute *attr) 44 { 45 if (ATTR_TYPE_HAS_INT_VAL (attr->type) && attr->i != 0) 46 return FALSE; 47 if (ATTR_TYPE_HAS_STR_VAL (attr->type) && attr->s && *attr->s) 48 return FALSE; 49 if (ATTR_TYPE_HAS_NO_DEFAULT (attr->type)) 50 return FALSE; 51 52 return TRUE; 53 } 54 55 /* Return the size of a single attribute. */ 56 static bfd_vma 57 obj_attr_size (int tag, obj_attribute *attr) 58 { 59 bfd_vma size; 60 61 if (is_default_attr (attr)) 62 return 0; 63 64 size = uleb128_size (tag); 65 if (ATTR_TYPE_HAS_INT_VAL (attr->type)) 66 size += uleb128_size (attr->i); 67 if (ATTR_TYPE_HAS_STR_VAL (attr->type)) 68 size += strlen ((char *)attr->s) + 1; 69 return size; 70 } 71 72 /* Return the vendor name for a given object attributes section. */ 73 static const char * 74 vendor_obj_attr_name (bfd *abfd, int vendor) 75 { 76 return (vendor == OBJ_ATTR_PROC 77 ? get_elf_backend_data (abfd)->obj_attrs_vendor 78 : "gnu"); 79 } 80 81 /* Return the size of the object attributes section for VENDOR 82 (OBJ_ATTR_PROC or OBJ_ATTR_GNU), or 0 if there are no attributes 83 for that vendor to record and the vendor is OBJ_ATTR_GNU. */ 84 static bfd_vma 85 vendor_obj_attr_size (bfd *abfd, int vendor) 86 { 87 bfd_vma size; 88 obj_attribute *attr; 89 obj_attribute_list *list; 90 int i; 91 const char *vendor_name = vendor_obj_attr_name (abfd, vendor); 92 93 if (!vendor_name) 94 return 0; 95 96 attr = elf_known_obj_attributes (abfd)[vendor]; 97 size = 0; 98 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++) 99 size += obj_attr_size (i, &attr[i]); 100 101 for (list = elf_other_obj_attributes (abfd)[vendor]; 102 list; 103 list = list->next) 104 size += obj_attr_size (list->tag, &list->attr); 105 106 /* <size> <vendor_name> NUL 0x1 <size> */ 107 return ((size || vendor == OBJ_ATTR_PROC) 108 ? size + 10 + strlen (vendor_name) 109 : 0); 110 } 111 112 /* Return the size of the object attributes section. */ 113 bfd_vma 114 bfd_elf_obj_attr_size (bfd *abfd) 115 { 116 bfd_vma size; 117 118 size = vendor_obj_attr_size (abfd, OBJ_ATTR_PROC); 119 size += vendor_obj_attr_size (abfd, OBJ_ATTR_GNU); 120 121 /* 'A' <sections for each vendor> */ 122 return (size ? size + 1 : 0); 123 } 124 125 /* Write VAL in uleb128 format to P, returning a pointer to the 126 following byte. */ 127 static bfd_byte * 128 write_uleb128 (bfd_byte *p, unsigned int val) 129 { 130 bfd_byte c; 131 do 132 { 133 c = val & 0x7f; 134 val >>= 7; 135 if (val) 136 c |= 0x80; 137 *(p++) = c; 138 } 139 while (val); 140 return p; 141 } 142 143 /* Write attribute ATTR to butter P, and return a pointer to the following 144 byte. */ 145 static bfd_byte * 146 write_obj_attribute (bfd_byte *p, int tag, obj_attribute *attr) 147 { 148 /* Suppress default entries. */ 149 if (is_default_attr (attr)) 150 return p; 151 152 p = write_uleb128 (p, tag); 153 if (ATTR_TYPE_HAS_INT_VAL (attr->type)) 154 p = write_uleb128 (p, attr->i); 155 if (ATTR_TYPE_HAS_STR_VAL (attr->type)) 156 { 157 int len; 158 159 len = strlen (attr->s) + 1; 160 memcpy (p, attr->s, len); 161 p += len; 162 } 163 164 return p; 165 } 166 167 /* Write the contents of the object attributes section (length SIZE) 168 for VENDOR to CONTENTS. */ 169 static void 170 vendor_set_obj_attr_contents (bfd *abfd, bfd_byte *contents, bfd_vma size, 171 int vendor) 172 { 173 bfd_byte *p; 174 obj_attribute *attr; 175 obj_attribute_list *list; 176 int i; 177 const char *vendor_name = vendor_obj_attr_name (abfd, vendor); 178 size_t vendor_length = strlen (vendor_name) + 1; 179 180 p = contents; 181 bfd_put_32 (abfd, size, p); 182 p += 4; 183 memcpy (p, vendor_name, vendor_length); 184 p += vendor_length; 185 *(p++) = Tag_File; 186 bfd_put_32 (abfd, size - 4 - vendor_length, p); 187 p += 4; 188 189 attr = elf_known_obj_attributes (abfd)[vendor]; 190 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++) 191 { 192 int tag = i; 193 if (get_elf_backend_data (abfd)->obj_attrs_order) 194 tag = get_elf_backend_data (abfd)->obj_attrs_order (i); 195 p = write_obj_attribute (p, tag, &attr[tag]); 196 } 197 198 for (list = elf_other_obj_attributes (abfd)[vendor]; 199 list; 200 list = list->next) 201 p = write_obj_attribute (p, list->tag, &list->attr); 202 } 203 204 /* Write the contents of the object attributes section to CONTENTS. */ 205 void 206 bfd_elf_set_obj_attr_contents (bfd *abfd, bfd_byte *contents, bfd_vma size) 207 { 208 bfd_byte *p; 209 int vendor; 210 bfd_vma my_size; 211 212 p = contents; 213 *(p++) = 'A'; 214 my_size = 1; 215 for (vendor = OBJ_ATTR_FIRST; vendor <= OBJ_ATTR_LAST; vendor++) 216 { 217 bfd_vma vendor_size = vendor_obj_attr_size (abfd, vendor); 218 if (vendor_size) 219 vendor_set_obj_attr_contents (abfd, p, vendor_size, vendor); 220 p += vendor_size; 221 my_size += vendor_size; 222 } 223 224 if (size != my_size) 225 abort (); 226 } 227 228 /* Allocate/find an object attribute. */ 229 static obj_attribute * 230 elf_new_obj_attr (bfd *abfd, int vendor, int tag) 231 { 232 obj_attribute *attr; 233 obj_attribute_list *list; 234 obj_attribute_list *p; 235 obj_attribute_list **lastp; 236 237 238 if (tag < NUM_KNOWN_OBJ_ATTRIBUTES) 239 { 240 /* Known tags are preallocated. */ 241 attr = &elf_known_obj_attributes (abfd)[vendor][tag]; 242 } 243 else 244 { 245 /* Create a new tag. */ 246 list = (obj_attribute_list *) 247 bfd_alloc (abfd, sizeof (obj_attribute_list)); 248 memset (list, 0, sizeof (obj_attribute_list)); 249 list->tag = tag; 250 /* Keep the tag list in order. */ 251 lastp = &elf_other_obj_attributes (abfd)[vendor]; 252 for (p = *lastp; p; p = p->next) 253 { 254 if (tag < p->tag) 255 break; 256 lastp = &p->next; 257 } 258 list->next = *lastp; 259 *lastp = list; 260 attr = &list->attr; 261 } 262 263 return attr; 264 } 265 266 /* Return the value of an integer object attribute. */ 267 int 268 bfd_elf_get_obj_attr_int (bfd *abfd, int vendor, int tag) 269 { 270 obj_attribute_list *p; 271 272 if (tag < NUM_KNOWN_OBJ_ATTRIBUTES) 273 { 274 /* Known tags are preallocated. */ 275 return elf_known_obj_attributes (abfd)[vendor][tag].i; 276 } 277 else 278 { 279 for (p = elf_other_obj_attributes (abfd)[vendor]; 280 p; 281 p = p->next) 282 { 283 if (tag == p->tag) 284 return p->attr.i; 285 if (tag < p->tag) 286 break; 287 } 288 return 0; 289 } 290 } 291 292 /* Add an integer object attribute. */ 293 void 294 bfd_elf_add_obj_attr_int (bfd *abfd, int vendor, int tag, unsigned int i) 295 { 296 obj_attribute *attr; 297 298 attr = elf_new_obj_attr (abfd, vendor, tag); 299 attr->type = _bfd_elf_obj_attrs_arg_type (abfd, vendor, tag) | ATTR_TYPE_FLAG_EXIST; 300 attr->i = i; 301 } 302 303 /* Duplicate an object attribute string value. */ 304 char * 305 _bfd_elf_attr_strdup (bfd *abfd, const char * s) 306 { 307 char * p; 308 int len; 309 310 len = strlen (s) + 1; 311 p = (char *) bfd_alloc (abfd, len); 312 return (char *) memcpy (p, s, len); 313 } 314 315 /* Add a string object attribute. */ 316 void 317 bfd_elf_add_obj_attr_string (bfd *abfd, int vendor, int tag, const char *s) 318 { 319 obj_attribute *attr; 320 321 attr = elf_new_obj_attr (abfd, vendor, tag); 322 attr->type = _bfd_elf_obj_attrs_arg_type (abfd, vendor, tag) | ATTR_TYPE_FLAG_EXIST; 323 attr->s = _bfd_elf_attr_strdup (abfd, s); 324 } 325 326 /* Add a int+string object attribute. */ 327 void 328 bfd_elf_add_obj_attr_int_string (bfd *abfd, int vendor, int tag, 329 unsigned int i, const char *s) 330 { 331 obj_attribute *attr; 332 333 attr = elf_new_obj_attr (abfd, vendor, tag); 334 attr->type = _bfd_elf_obj_attrs_arg_type (abfd, vendor, tag) | ATTR_TYPE_FLAG_EXIST; 335 attr->i = i; 336 attr->s = _bfd_elf_attr_strdup (abfd, s); 337 } 338 339 /* Copy the object attributes from IBFD to OBFD. */ 340 void 341 _bfd_elf_copy_obj_attributes (bfd *ibfd, bfd *obfd) 342 { 343 obj_attribute *in_attr; 344 obj_attribute *out_attr; 345 obj_attribute_list *list; 346 int i; 347 int vendor; 348 349 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour 350 || bfd_get_flavour (obfd) != bfd_target_elf_flavour) 351 return; 352 353 for (vendor = OBJ_ATTR_FIRST; vendor <= OBJ_ATTR_LAST; vendor++) 354 { 355 in_attr 356 = &elf_known_obj_attributes (ibfd)[vendor][LEAST_KNOWN_OBJ_ATTRIBUTE]; 357 out_attr 358 = &elf_known_obj_attributes (obfd)[vendor][LEAST_KNOWN_OBJ_ATTRIBUTE]; 359 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++) 360 { 361 out_attr->type = in_attr->type; 362 out_attr->i = in_attr->i; 363 if (in_attr->s && *in_attr->s) 364 out_attr->s = _bfd_elf_attr_strdup (obfd, in_attr->s); 365 in_attr++; 366 out_attr++; 367 } 368 369 for (list = elf_other_obj_attributes (ibfd)[vendor]; 370 list; 371 list = list->next) 372 { 373 in_attr = &list->attr; 374 switch (in_attr->type & (ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL)) 375 { 376 case ATTR_TYPE_FLAG_INT_VAL: 377 bfd_elf_add_obj_attr_int (obfd, vendor, list->tag, in_attr->i); 378 break; 379 case ATTR_TYPE_FLAG_STR_VAL: 380 bfd_elf_add_obj_attr_string (obfd, vendor, list->tag, 381 in_attr->s); 382 break; 383 case ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL: 384 bfd_elf_add_obj_attr_int_string (obfd, vendor, list->tag, 385 in_attr->i, in_attr->s); 386 break; 387 default: 388 abort (); 389 } 390 } 391 } 392 } 393 394 /* Determine whether a GNU object attribute tag takes an integer, a 395 string or both. */ 396 static int 397 gnu_obj_attrs_arg_type (int tag) 398 { 399 /* Except for Tag_compatibility, for GNU attributes we follow the 400 same rule ARM ones > 32 follow: odd-numbered tags take strings 401 and even-numbered tags take integers. In addition, tag & 2 is 402 nonzero for architecture-independent tags and zero for 403 architecture-dependent ones. */ 404 if (tag == Tag_compatibility) 405 return 3; 406 else 407 return (tag & 1) != 0 ? 2 : 1; 408 } 409 410 /* Determine what arguments an attribute tag takes. */ 411 int 412 _bfd_elf_obj_attrs_arg_type (bfd *abfd, int vendor, int tag) 413 { 414 switch (vendor) 415 { 416 case OBJ_ATTR_PROC: 417 return get_elf_backend_data (abfd)->obj_attrs_arg_type (tag); 418 break; 419 case OBJ_ATTR_GNU: 420 return gnu_obj_attrs_arg_type (tag); 421 break; 422 default: 423 abort (); 424 } 425 } 426 427 /* Parse an object attributes section. */ 428 void 429 _bfd_elf_parse_attributes (bfd *abfd, Elf_Internal_Shdr * hdr) 430 { 431 bfd_byte *contents; 432 bfd_byte *p; 433 bfd_vma len; 434 const char *std_sec; 435 436 contents = (bfd_byte *) bfd_malloc (hdr->sh_size); 437 if (!contents) 438 return; 439 if (!bfd_get_section_contents (abfd, hdr->bfd_section, contents, 0, 440 hdr->sh_size)) 441 { 442 free (contents); 443 return; 444 } 445 p = contents; 446 std_sec = get_elf_backend_data (abfd)->obj_attrs_vendor; 447 if (*(p++) == 'A') 448 { 449 len = hdr->sh_size - 1; 450 while (len > 0) 451 { 452 unsigned namelen; 453 bfd_vma section_len; 454 int vendor; 455 456 section_len = bfd_get_32 (abfd, p); 457 p += 4; 458 if (section_len == 0) 459 break; 460 if (section_len > len) 461 section_len = len; 462 len -= section_len; 463 section_len -= 4; 464 namelen = strnlen ((char *) p, section_len) + 1; 465 if (namelen == 0 || namelen >= section_len) 466 break; 467 section_len -= namelen; 468 if (std_sec && strcmp ((char *) p, std_sec) == 0) 469 vendor = OBJ_ATTR_PROC; 470 else if (strcmp ((char *) p, "gnu") == 0) 471 vendor = OBJ_ATTR_GNU; 472 else 473 { 474 /* Other vendor section. Ignore it. */ 475 p += namelen + section_len; 476 continue; 477 } 478 479 p += namelen; 480 while (section_len > 0) 481 { 482 int tag; 483 unsigned int n; 484 unsigned int val; 485 bfd_vma subsection_len; 486 bfd_byte *end; 487 488 tag = read_unsigned_leb128 (abfd, p, &n); 489 p += n; 490 subsection_len = bfd_get_32 (abfd, p); 491 p += 4; 492 if (subsection_len == 0) 493 break; 494 if (subsection_len > section_len) 495 subsection_len = section_len; 496 section_len -= subsection_len; 497 subsection_len -= n + 4; 498 end = p + subsection_len; 499 switch (tag) 500 { 501 case Tag_File: 502 while (p < end) 503 { 504 int type; 505 506 tag = read_unsigned_leb128 (abfd, p, &n); 507 p += n; 508 type = _bfd_elf_obj_attrs_arg_type (abfd, vendor, tag); 509 switch (type & (ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL)) 510 { 511 case ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL: 512 val = read_unsigned_leb128 (abfd, p, &n); 513 p += n; 514 bfd_elf_add_obj_attr_int_string (abfd, vendor, tag, 515 val, (char *)p); 516 p += strlen ((char *)p) + 1; 517 break; 518 case ATTR_TYPE_FLAG_STR_VAL: 519 bfd_elf_add_obj_attr_string (abfd, vendor, tag, 520 (char *)p); 521 p += strlen ((char *)p) + 1; 522 break; 523 case ATTR_TYPE_FLAG_INT_VAL: 524 val = read_unsigned_leb128 (abfd, p, &n); 525 p += n; 526 bfd_elf_add_obj_attr_int (abfd, vendor, tag, val); 527 break; 528 default: 529 abort (); 530 } 531 } 532 break; 533 case Tag_Section: 534 case Tag_Symbol: 535 /* Don't have anywhere convenient to attach these. 536 Fall through for now. */ 537 default: 538 /* Ignore things we don't kow about. */ 539 p += subsection_len; 540 subsection_len = 0; 541 break; 542 } 543 } 544 } 545 } 546 free (contents); 547 } 548 549 /* Merge common object attributes from IBFD into OBFD. Raise an error 550 if there are conflicting attributes. Any processor-specific 551 attributes have already been merged. This must be called from the 552 bfd_elfNN_bfd_merge_private_bfd_data hook for each individual 553 target, along with any target-specific merging. Because there are 554 no common attributes other than Tag_compatibility at present, and 555 non-"gnu" Tag_compatibility is not expected in "gnu" sections, this 556 is not presently called for targets without their own 557 attributes. */ 558 559 bfd_boolean 560 _bfd_elf_merge_object_attributes (bfd *ibfd, bfd *obfd) 561 { 562 obj_attribute *in_attr; 563 obj_attribute *out_attr; 564 int vendor; 565 566 /* The only common attribute is currently Tag_compatibility, 567 accepted in both processor and "gnu" sections. */ 568 for (vendor = OBJ_ATTR_FIRST; vendor <= OBJ_ATTR_LAST; vendor++) 569 { 570 /* Handle Tag_compatibility. The tags are only compatible if the flags 571 are identical and, if the flags are '1', the strings are identical. 572 If the flags are non-zero, then we can only use the string "gnu". */ 573 in_attr = &elf_known_obj_attributes (ibfd)[vendor][Tag_compatibility]; 574 out_attr = &elf_known_obj_attributes (obfd)[vendor][Tag_compatibility]; 575 576 if (in_attr->i > 0 && strcmp (in_attr->s, "gnu") != 0) 577 { 578 _bfd_error_handler 579 (_("error: %B: Object has vendor-specific contents that " 580 "must be processed by the '%s' toolchain"), 581 ibfd, in_attr->s); 582 return FALSE; 583 } 584 585 if (in_attr->i != out_attr->i 586 || (in_attr->i != 0 && strcmp (in_attr->s, out_attr->s) != 0)) 587 { 588 _bfd_error_handler (_("error: %B: Object tag '%d, %s' is " 589 "incompatible with tag '%d, %s'"), 590 ibfd, 591 in_attr->i, in_attr->s ? in_attr->s : "", 592 out_attr->i, out_attr->s ? out_attr->s : ""); 593 return FALSE; 594 } 595 } 596 597 return TRUE; 598 } 599 600 /* Merge an unknown processor-specific attribute TAG, within the range 601 of known attributes, from IBFD into OBFD; return TRUE if the link 602 is OK, FALSE if it must fail. */ 603 604 bfd_boolean 605 _bfd_elf_merge_unknown_attribute_low (bfd *ibfd, bfd *obfd, int tag) 606 { 607 obj_attribute *in_attr; 608 obj_attribute *out_attr; 609 bfd *err_bfd = NULL; 610 bfd_boolean result = TRUE; 611 612 in_attr = elf_known_obj_attributes_proc (ibfd); 613 out_attr = elf_known_obj_attributes_proc (obfd); 614 615 if (out_attr[tag].i != 0 || out_attr[tag].s != NULL) 616 err_bfd = obfd; 617 else if (in_attr[tag].i != 0 || in_attr[tag].s != NULL) 618 err_bfd = ibfd; 619 620 if (err_bfd != NULL) 621 result 622 = get_elf_backend_data (err_bfd)->obj_attrs_handle_unknown (err_bfd, tag); 623 624 /* Only pass on attributes that match in both inputs. */ 625 if (in_attr[tag].i != out_attr[tag].i 626 || (in_attr[tag].s == NULL) != (out_attr[tag].s == NULL) 627 || (in_attr[tag].s != NULL && out_attr[tag].s != NULL 628 && strcmp (in_attr[tag].s, out_attr[tag].s) != 0)) 629 { 630 out_attr[tag].i = 0; 631 out_attr[tag].s = NULL; 632 } 633 634 return result; 635 } 636 637 /* Merge the lists of unknown processor-specific attributes, outside 638 the known range, from IBFD into OBFD; return TRUE if the link is 639 OK, FALSE if it must fail. */ 640 641 bfd_boolean 642 _bfd_elf_merge_unknown_attribute_list (bfd *ibfd, bfd *obfd) 643 { 644 obj_attribute_list *in_list; 645 obj_attribute_list *out_list; 646 obj_attribute_list **out_listp; 647 bfd_boolean result = TRUE; 648 649 in_list = elf_other_obj_attributes_proc (ibfd); 650 out_listp = &elf_other_obj_attributes_proc (obfd); 651 out_list = *out_listp; 652 653 for (; in_list || out_list; ) 654 { 655 bfd *err_bfd = NULL; 656 int err_tag = 0; 657 658 /* The tags for each list are in numerical order. */ 659 /* If the tags are equal, then merge. */ 660 if (out_list && (!in_list || in_list->tag > out_list->tag)) 661 { 662 /* This attribute only exists in obfd. We can't merge, and we don't 663 know what the tag means, so delete it. */ 664 err_bfd = obfd; 665 err_tag = out_list->tag; 666 *out_listp = out_list->next; 667 out_list = *out_listp; 668 } 669 else if (in_list && (!out_list || in_list->tag < out_list->tag)) 670 { 671 /* This attribute only exists in ibfd. We can't merge, and we don't 672 know what the tag means, so ignore it. */ 673 err_bfd = ibfd; 674 err_tag = in_list->tag; 675 in_list = in_list->next; 676 } 677 else /* The tags are equal. */ 678 { 679 /* As present, all attributes in the list are unknown, and 680 therefore can't be merged meaningfully. */ 681 err_bfd = obfd; 682 err_tag = out_list->tag; 683 684 /* Only pass on attributes that match in both inputs. */ 685 if (in_list->attr.i != out_list->attr.i 686 || (in_list->attr.s == NULL) != (out_list->attr.s == NULL) 687 || (in_list->attr.s && out_list->attr.s 688 && strcmp (in_list->attr.s, out_list->attr.s) != 0)) 689 { 690 /* No match. Delete the attribute. */ 691 *out_listp = out_list->next; 692 out_list = *out_listp; 693 } 694 else 695 { 696 /* Matched. Keep the attribute and move to the next. */ 697 out_list = out_list->next; 698 in_list = in_list->next; 699 } 700 } 701 702 if (err_bfd) 703 result = result 704 && get_elf_backend_data (err_bfd)->obj_attrs_handle_unknown (err_bfd, 705 err_tag); 706 } 707 708 return result; 709 } 710
