1/* BFD back-end for Intel Hex objects. 2 Copyright (C) 1995-2020 Free Software Foundation, Inc. 3 Written by Ian Lance Taylor of Cygnus Support <ian@cygnus.com>. 4 5 This file is part of BFD, the Binary File Descriptor library. 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 is what Intel Hex files look like: 24 251. INTEL FORMATS 26 27A. Intel 1 28 29 16-bit address-field format, for files 64k bytes in length or less. 30 31 DATA RECORD 32 Byte 1 Header = colon(:) 33 2..3 The number of data bytes in hex notation 34 4..5 High byte of the record load address 35 6..7 Low byte of the record load address 36 8..9 Record type, must be "00" 37 10..x Data bytes in hex notation: 38 x = (number of bytes - 1) * 2 + 11 39 x+1..x+2 Checksum in hex notation 40 x+3..x+4 Carriage return, line feed 41 42 END RECORD 43 Byte 1 Header = colon (:) 44 2..3 The byte count, must be "00" 45 4..7 Transfer-address (usually "0000") 46 the jump-to address, execution start address 47 8..9 Record type, must be "01" 48 10..11 Checksum, in hex notation 49 12..13 Carriage return, line feed 50 51B. INTEL 2 52 53 MCS-86 format, using a 20-bit address for files larger than 64K bytes. 54 55 DATA RECORD 56 Byte 1 Header = colon (:) 57 2..3 The byte count of this record, hex notation 58 4..5 High byte of the record load address 59 6..7 Low byte of the record load address 60 8..9 Record type, must be "00" 61 10..x The data bytes in hex notation: 62 x = (number of data bytes - 1) * 2 + 11 63 x+1..x+2 Checksum in hex notation 64 x+3..x+4 Carriage return, line feed 65 66 EXTENDED ADDRESS RECORD 67 Byte 1 Header = colon(:) 68 2..3 The byte count, must be "02" 69 4..7 Load address, must be "0000" 70 8..9 Record type, must be "02" 71 10..11 High byte of the offset address 72 12..13 Low byte of the offset address 73 14..15 Checksum in hex notation 74 16..17 Carriage return, line feed 75 76 The checksums are the two's complement of the 8-bit sum 77 without carry of the byte count, offset address, and the 78 record type. 79 80 START ADDRESS RECORD 81 Byte 1 Header = colon (:) 82 2..3 The byte count, must be "04" 83 4..7 Load address, must be "0000" 84 8..9 Record type, must be "03" 85 10..13 8086 CS value 86 14..17 8086 IP value 87 18..19 Checksum in hex notation 88 20..21 Carriage return, line feed 89 90Another document reports these additional types: 91 92 EXTENDED LINEAR ADDRESS RECORD 93 Byte 1 Header = colon (:) 94 2..3 The byte count, must be "02" 95 4..7 Load address, must be "0000" 96 8..9 Record type, must be "04" 97 10..13 Upper 16 bits of address of subsequent records 98 14..15 Checksum in hex notation 99 16..17 Carriage return, line feed 100 101 START LINEAR ADDRESS RECORD 102 Byte 1 Header = colon (:) 103 2..3 The byte count, must be "02" 104 4..7 Load address, must be "0000" 105 8..9 Record type, must be "05" 106 10..13 Upper 16 bits of start address 107 14..15 Checksum in hex notation 108 16..17 Carriage return, line feed 109 110The MRI compiler uses this, which is a repeat of type 5: 111 112 EXTENDED START RECORD 113 Byte 1 Header = colon (:) 114 2..3 The byte count, must be "04" 115 4..7 Load address, must be "0000" 116 8..9 Record type, must be "05" 117 10..13 Upper 16 bits of start address 118 14..17 Lower 16 bits of start address 119 18..19 Checksum in hex notation 120 20..21 Carriage return, line feed. */ 121 122#include "sysdep.h" 123#include "bfd.h" 124#include "libbfd.h" 125#include "libiberty.h" 126#include "safe-ctype.h" 127 128/* The number of bytes we put on one line during output. */ 129 130#define CHUNK 16 131 132/* Macros for converting between hex and binary. */ 133 134#define NIBBLE(x) (hex_value (x)) 135#define HEX2(buffer) ((NIBBLE ((buffer)[0]) << 4) + NIBBLE ((buffer)[1])) 136#define HEX4(buffer) ((HEX2 (buffer) << 8) + HEX2 ((buffer) + 2)) 137#define ISHEX(x) (hex_p (x)) 138 139/* When we write out an ihex value, the values can not be output as 140 they are seen. Instead, we hold them in memory in this structure. */ 141 142struct ihex_data_list 143{ 144 struct ihex_data_list *next; 145 bfd_byte *data; 146 bfd_vma where; 147 bfd_size_type size; 148}; 149 150/* The ihex tdata information. */ 151 152struct ihex_data_struct 153{ 154 struct ihex_data_list *head; 155 struct ihex_data_list *tail; 156}; 157 158/* Initialize by filling in the hex conversion array. */ 159 160static void 161ihex_init (void) 162{ 163 static bfd_boolean inited; 164 165 if (! inited) 166 { 167 inited = TRUE; 168 hex_init (); 169 } 170} 171 172/* Create an ihex object. */ 173 174static bfd_boolean 175ihex_mkobject (bfd *abfd) 176{ 177 struct ihex_data_struct *tdata; 178 179 tdata = (struct ihex_data_struct *) bfd_alloc (abfd, sizeof (* tdata)); 180 if (tdata == NULL) 181 return FALSE; 182 183 abfd->tdata.ihex_data = tdata; 184 tdata->head = NULL; 185 tdata->tail = NULL; 186 return TRUE; 187} 188 189/* Read a byte from a BFD. Set *ERRORPTR if an error occurred. 190 Return EOF on error or end of file. */ 191 192static INLINE int 193ihex_get_byte (bfd *abfd, bfd_boolean *errorptr) 194{ 195 bfd_byte c; 196 197 if (bfd_bread (&c, (bfd_size_type) 1, abfd) != 1) 198 { 199 if (bfd_get_error () != bfd_error_file_truncated) 200 *errorptr = TRUE; 201 return EOF; 202 } 203 204 return (int) (c & 0xff); 205} 206 207/* Report a problem in an Intel Hex file. */ 208 209static void 210ihex_bad_byte (bfd *abfd, unsigned int lineno, int c, bfd_boolean error) 211{ 212 if (c == EOF) 213 { 214 if (! error) 215 bfd_set_error (bfd_error_file_truncated); 216 } 217 else 218 { 219 char buf[10]; 220 221 if (! ISPRINT (c)) 222 sprintf (buf, "\\%03o", (unsigned int) c & 0xff); 223 else 224 { 225 buf[0] = c; 226 buf[1] = '\0'; 227 } 228 _bfd_error_handler 229 /* xgettext:c-format */ 230 (_("%pB:%d: unexpected character `%s' in Intel Hex file"), 231 abfd, lineno, buf); 232 bfd_set_error (bfd_error_bad_value); 233 } 234} 235 236/* Read an Intel hex file and turn it into sections. We create a new 237 section for each contiguous set of bytes. */ 238 239static bfd_boolean 240ihex_scan (bfd *abfd) 241{ 242 bfd_vma segbase; 243 bfd_vma extbase; 244 asection *sec; 245 unsigned int lineno; 246 bfd_boolean error; 247 bfd_byte *buf = NULL; 248 size_t bufsize; 249 int c; 250 251 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) 252 goto error_return; 253 254 abfd->start_address = 0; 255 256 segbase = 0; 257 extbase = 0; 258 sec = NULL; 259 lineno = 1; 260 error = FALSE; 261 bufsize = 0; 262 263 while ((c = ihex_get_byte (abfd, &error)) != EOF) 264 { 265 if (c == '\r') 266 continue; 267 else if (c == '\n') 268 { 269 ++lineno; 270 continue; 271 } 272 else if (c != ':') 273 { 274 ihex_bad_byte (abfd, lineno, c, error); 275 goto error_return; 276 } 277 else 278 { 279 file_ptr pos; 280 unsigned char hdr[8]; 281 unsigned int i; 282 unsigned int len; 283 bfd_vma addr; 284 unsigned int type; 285 unsigned int chars; 286 unsigned int chksum; 287 288 /* This is a data record. */ 289 pos = bfd_tell (abfd) - 1; 290 291 /* Read the header bytes. */ 292 if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8) 293 goto error_return; 294 295 for (i = 0; i < 8; i++) 296 { 297 if (! ISHEX (hdr[i])) 298 { 299 ihex_bad_byte (abfd, lineno, hdr[i], error); 300 goto error_return; 301 } 302 } 303 304 len = HEX2 (hdr); 305 addr = HEX4 (hdr + 2); 306 type = HEX2 (hdr + 6); 307 308 /* Read the data bytes. */ 309 chars = len * 2 + 2; 310 if (chars >= bufsize) 311 { 312 buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) chars); 313 if (buf == NULL) 314 goto error_return; 315 bufsize = chars; 316 } 317 318 if (bfd_bread (buf, (bfd_size_type) chars, abfd) != chars) 319 goto error_return; 320 321 for (i = 0; i < chars; i++) 322 { 323 if (! ISHEX (buf[i])) 324 { 325 ihex_bad_byte (abfd, lineno, buf[i], error); 326 goto error_return; 327 } 328 } 329 330 /* Check the checksum. */ 331 chksum = len + addr + (addr >> 8) + type; 332 for (i = 0; i < len; i++) 333 chksum += HEX2 (buf + 2 * i); 334 if (((- chksum) & 0xff) != (unsigned int) HEX2 (buf + 2 * i)) 335 { 336 _bfd_error_handler 337 /* xgettext:c-format */ 338 (_("%pB:%u: bad checksum in Intel Hex file (expected %u, found %u)"), 339 abfd, lineno, 340 (- chksum) & 0xff, (unsigned int) HEX2 (buf + 2 * i)); 341 bfd_set_error (bfd_error_bad_value); 342 goto error_return; 343 } 344 345 switch (type) 346 { 347 case 0: 348 /* This is a data record. */ 349 if (sec != NULL 350 && sec->vma + sec->size == extbase + segbase + addr) 351 { 352 /* This data goes at the end of the section we are 353 currently building. */ 354 sec->size += len; 355 } 356 else if (len > 0) 357 { 358 char secbuf[20]; 359 char *secname; 360 size_t amt; 361 flagword flags; 362 363 sprintf (secbuf, ".sec%d", bfd_count_sections (abfd) + 1); 364 amt = strlen (secbuf) + 1; 365 secname = (char *) bfd_alloc (abfd, amt); 366 if (secname == NULL) 367 goto error_return; 368 strcpy (secname, secbuf); 369 flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC; 370 sec = bfd_make_section_with_flags (abfd, secname, flags); 371 if (sec == NULL) 372 goto error_return; 373 sec->vma = extbase + segbase + addr; 374 sec->lma = extbase + segbase + addr; 375 sec->size = len; 376 sec->filepos = pos; 377 } 378 break; 379 380 case 1: 381 /* An end record. */ 382 if (abfd->start_address == 0) 383 abfd->start_address = addr; 384 free (buf); 385 return TRUE; 386 387 case 2: 388 /* An extended address record. */ 389 if (len != 2) 390 { 391 _bfd_error_handler 392 /* xgettext:c-format */ 393 (_("%pB:%u: bad extended address record length in Intel Hex file"), 394 abfd, lineno); 395 bfd_set_error (bfd_error_bad_value); 396 goto error_return; 397 } 398 399 segbase = HEX4 (buf) << 4; 400 401 sec = NULL; 402 403 break; 404 405 case 3: 406 /* An extended start address record. */ 407 if (len != 4) 408 { 409 _bfd_error_handler 410 /* xgettext:c-format */ 411 (_("%pB:%u: bad extended start address length in Intel Hex file"), 412 abfd, lineno); 413 bfd_set_error (bfd_error_bad_value); 414 goto error_return; 415 } 416 417 abfd->start_address += (HEX4 (buf) << 4) + HEX4 (buf + 4); 418 419 sec = NULL; 420 421 break; 422 423 case 4: 424 /* An extended linear address record. */ 425 if (len != 2) 426 { 427 _bfd_error_handler 428 /* xgettext:c-format */ 429 (_("%pB:%u: bad extended linear address record length in Intel Hex file"), 430 abfd, lineno); 431 bfd_set_error (bfd_error_bad_value); 432 goto error_return; 433 } 434 435 extbase = HEX4 (buf) << 16; 436 437 sec = NULL; 438 439 break; 440 441 case 5: 442 /* An extended linear start address record. */ 443 if (len != 2 && len != 4) 444 { 445 _bfd_error_handler 446 /* xgettext:c-format */ 447 (_("%pB:%u: bad extended linear start address length in Intel Hex file"), 448 abfd, lineno); 449 bfd_set_error (bfd_error_bad_value); 450 goto error_return; 451 } 452 453 if (len == 2) 454 abfd->start_address += HEX4 (buf) << 16; 455 else 456 abfd->start_address = (HEX4 (buf) << 16) + HEX4 (buf + 4); 457 458 sec = NULL; 459 460 break; 461 462 default: 463 _bfd_error_handler 464 /* xgettext:c-format */ 465 (_("%pB:%u: unrecognized ihex type %u in Intel Hex file"), 466 abfd, lineno, type); 467 bfd_set_error (bfd_error_bad_value); 468 goto error_return; 469 } 470 } 471 } 472 473 if (error) 474 goto error_return; 475 476 free (buf); 477 return TRUE; 478 479 error_return: 480 free (buf); 481 return FALSE; 482} 483 484/* Try to recognize an Intel Hex file. */ 485 486static bfd_cleanup 487ihex_object_p (bfd *abfd) 488{ 489 void * tdata_save; 490 bfd_byte b[9]; 491 unsigned int i; 492 unsigned int type; 493 494 ihex_init (); 495 496 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) 497 return NULL; 498 if (bfd_bread (b, (bfd_size_type) 9, abfd) != 9) 499 { 500 if (bfd_get_error () == bfd_error_file_truncated) 501 bfd_set_error (bfd_error_wrong_format); 502 return NULL; 503 } 504 505 if (b[0] != ':') 506 { 507 bfd_set_error (bfd_error_wrong_format); 508 return NULL; 509 } 510 511 for (i = 1; i < 9; i++) 512 { 513 if (! ISHEX (b[i])) 514 { 515 bfd_set_error (bfd_error_wrong_format); 516 return NULL; 517 } 518 } 519 520 type = HEX2 (b + 7); 521 if (type > 5) 522 { 523 bfd_set_error (bfd_error_wrong_format); 524 return NULL; 525 } 526 527 /* OK, it looks like it really is an Intel Hex file. */ 528 tdata_save = abfd->tdata.any; 529 if (! ihex_mkobject (abfd) || ! ihex_scan (abfd)) 530 { 531 if (abfd->tdata.any != tdata_save && abfd->tdata.any != NULL) 532 bfd_release (abfd, abfd->tdata.any); 533 abfd->tdata.any = tdata_save; 534 return NULL; 535 } 536 537 return _bfd_no_cleanup; 538} 539 540/* Read the contents of a section in an Intel Hex file. */ 541 542static bfd_boolean 543ihex_read_section (bfd *abfd, asection *section, bfd_byte *contents) 544{ 545 int c; 546 bfd_byte *p; 547 bfd_byte *buf = NULL; 548 size_t bufsize; 549 bfd_boolean error; 550 551 if (bfd_seek (abfd, section->filepos, SEEK_SET) != 0) 552 goto error_return; 553 554 p = contents; 555 bufsize = 0; 556 error = FALSE; 557 while ((c = ihex_get_byte (abfd, &error)) != EOF) 558 { 559 unsigned char hdr[8]; 560 unsigned int len; 561 unsigned int type; 562 unsigned int i; 563 564 if (c == '\r' || c == '\n') 565 continue; 566 567 /* This is called after ihex_scan has succeeded, so we ought to 568 know the exact format. */ 569 BFD_ASSERT (c == ':'); 570 571 if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8) 572 goto error_return; 573 574 len = HEX2 (hdr); 575 type = HEX2 (hdr + 6); 576 577 /* We should only see type 0 records here. */ 578 if (type != 0) 579 { 580 _bfd_error_handler 581 (_("%pB: internal error in ihex_read_section"), abfd); 582 bfd_set_error (bfd_error_bad_value); 583 goto error_return; 584 } 585 586 if (len * 2 > bufsize) 587 { 588 buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) len * 2); 589 if (buf == NULL) 590 goto error_return; 591 bufsize = len * 2; 592 } 593 594 if (bfd_bread (buf, (bfd_size_type) len * 2, abfd) != len * 2) 595 goto error_return; 596 597 for (i = 0; i < len; i++) 598 *p++ = HEX2 (buf + 2 * i); 599 if ((bfd_size_type) (p - contents) >= section->size) 600 { 601 /* We've read everything in the section. */ 602 free (buf); 603 return TRUE; 604 } 605 606 /* Skip the checksum. */ 607 if (bfd_bread (buf, (bfd_size_type) 2, abfd) != 2) 608 goto error_return; 609 } 610 611 if ((bfd_size_type) (p - contents) < section->size) 612 { 613 _bfd_error_handler 614 (_("%pB: bad section length in ihex_read_section"), abfd); 615 bfd_set_error (bfd_error_bad_value); 616 goto error_return; 617 } 618 619 free (buf); 620 return TRUE; 621 622 error_return: 623 free (buf); 624 return FALSE; 625} 626 627/* Get the contents of a section in an Intel Hex file. */ 628 629static bfd_boolean 630ihex_get_section_contents (bfd *abfd, 631 asection *section, 632 void * location, 633 file_ptr offset, 634 bfd_size_type count) 635{ 636 if (section->used_by_bfd == NULL) 637 { 638 section->used_by_bfd = bfd_alloc (abfd, section->size); 639 if (section->used_by_bfd == NULL) 640 return FALSE; 641 if (! ihex_read_section (abfd, section, 642 (bfd_byte *) section->used_by_bfd)) 643 return FALSE; 644 } 645 646 memcpy (location, (bfd_byte *) section->used_by_bfd + offset, 647 (size_t) count); 648 649 return TRUE; 650} 651 652/* Set the contents of a section in an Intel Hex file. */ 653 654static bfd_boolean 655ihex_set_section_contents (bfd *abfd, 656 asection *section, 657 const void * location, 658 file_ptr offset, 659 bfd_size_type count) 660{ 661 struct ihex_data_list *n; 662 bfd_byte *data; 663 struct ihex_data_struct *tdata; 664 665 if (count == 0 666 || (section->flags & SEC_ALLOC) == 0 667 || (section->flags & SEC_LOAD) == 0) 668 return TRUE; 669 670 n = (struct ihex_data_list *) bfd_alloc (abfd, sizeof (* n)); 671 if (n == NULL) 672 return FALSE; 673 674 data = (bfd_byte *) bfd_alloc (abfd, count); 675 if (data == NULL) 676 return FALSE; 677 memcpy (data, location, (size_t) count); 678 679 n->data = data; 680 n->where = section->lma + offset; 681 n->size = count; 682 683 /* Sort the records by address. Optimize for the common case of 684 adding a record to the end of the list. */ 685 tdata = abfd->tdata.ihex_data; 686 if (tdata->tail != NULL 687 && n->where >= tdata->tail->where) 688 { 689 tdata->tail->next = n; 690 n->next = NULL; 691 tdata->tail = n; 692 } 693 else 694 { 695 struct ihex_data_list **pp; 696 697 for (pp = &tdata->head; 698 *pp != NULL && (*pp)->where < n->where; 699 pp = &(*pp)->next) 700 ; 701 n->next = *pp; 702 *pp = n; 703 if (n->next == NULL) 704 tdata->tail = n; 705 } 706 707 return TRUE; 708} 709 710/* Write a record out to an Intel Hex file. */ 711 712static bfd_boolean 713ihex_write_record (bfd *abfd, 714 size_t count, 715 unsigned int addr, 716 unsigned int type, 717 bfd_byte *data) 718{ 719 static const char digs[] = "0123456789ABCDEF"; 720 char buf[9 + CHUNK * 2 + 4]; 721 char *p; 722 unsigned int chksum; 723 unsigned int i; 724 size_t total; 725 726#define TOHEX(buf, v) \ 727 ((buf)[0] = digs[((v) >> 4) & 0xf], (buf)[1] = digs[(v) & 0xf]) 728 729 buf[0] = ':'; 730 TOHEX (buf + 1, count); 731 TOHEX (buf + 3, (addr >> 8) & 0xff); 732 TOHEX (buf + 5, addr & 0xff); 733 TOHEX (buf + 7, type); 734 735 chksum = count + addr + (addr >> 8) + type; 736 737 for (i = 0, p = buf + 9; i < count; i++, p += 2, data++) 738 { 739 TOHEX (p, *data); 740 chksum += *data; 741 } 742 743 TOHEX (p, (- chksum) & 0xff); 744 p[2] = '\r'; 745 p[3] = '\n'; 746 747 total = 9 + count * 2 + 4; 748 if (bfd_bwrite (buf, (bfd_size_type) total, abfd) != total) 749 return FALSE; 750 751 return TRUE; 752} 753 754/* Write out an Intel Hex file. */ 755 756static bfd_boolean 757ihex_write_object_contents (bfd *abfd) 758{ 759 bfd_vma segbase; 760 bfd_vma extbase; 761 struct ihex_data_list *l; 762 763 segbase = 0; 764 extbase = 0; 765 for (l = abfd->tdata.ihex_data->head; l != NULL; l = l->next) 766 { 767 bfd_vma where; 768 bfd_byte *p; 769 bfd_size_type count; 770 771 where = l->where; 772 773#ifdef BFD64 774 /* IHex only supports 32-bit addresses, and we want to check 775 that 64-bit addresses are in range. This isn't quite as 776 obvious as it may seem, since some targets have 32-bit 777 addresses that are sign extended to 64 bits. So complain 778 only if addresses overflow both unsigned and signed 32-bit 779 integers. */ 780 if (where > 0xffffffff 781 && where + 0x80000000 > 0xffffffff) 782 { 783 _bfd_error_handler 784 /* xgettext:c-format */ 785 (_("%pB 64-bit address %#" PRIx64 786 " out of range for Intel Hex file"), 787 abfd, (uint64_t) where); 788 bfd_set_error (bfd_error_bad_value); 789 return FALSE; 790 } 791 where &= 0xffffffff; 792#endif 793 794 p = l->data; 795 count = l->size; 796 797 while (count > 0) 798 { 799 size_t now; 800 unsigned int rec_addr; 801 802 now = count; 803 if (count > CHUNK) 804 now = CHUNK; 805 806 if (where < extbase 807 || where - extbase < segbase 808 || where - extbase - segbase > 0xffff) 809 { 810 bfd_byte addr[2]; 811 812 /* We need a new base address. */ 813 if (extbase == 0 && where <= 0xfffff) 814 { 815 segbase = where & 0xf0000; 816 addr[0] = (bfd_byte)(segbase >> 12) & 0xff; 817 addr[1] = (bfd_byte)(segbase >> 4) & 0xff; 818 if (! ihex_write_record (abfd, 2, 0, 2, addr)) 819 return FALSE; 820 } 821 else 822 { 823 /* The extended address record and the extended 824 linear address record are combined, at least by 825 some readers. We need an extended linear address 826 record here, so if we've already written out an 827 extended address record, zero it out to avoid 828 confusion. */ 829 if (segbase != 0) 830 { 831 addr[0] = 0; 832 addr[1] = 0; 833 if (! ihex_write_record (abfd, 2, 0, 2, addr)) 834 return FALSE; 835 segbase = 0; 836 } 837 838 extbase = where & 0xffff0000; 839 if (where > extbase + 0xffff) 840 { 841 _bfd_error_handler 842 /* xgettext:c-format */ 843 (_("%pB: address %#" PRIx64 844 " out of range for Intel Hex file"), 845 abfd, (uint64_t) where); 846 bfd_set_error (bfd_error_bad_value); 847 return FALSE; 848 } 849 addr[0] = (bfd_byte)(extbase >> 24) & 0xff; 850 addr[1] = (bfd_byte)(extbase >> 16) & 0xff; 851 if (! ihex_write_record (abfd, 2, 0, 4, addr)) 852 return FALSE; 853 } 854 } 855 856 rec_addr = where - (extbase + segbase); 857 858 /* Output records shouldn't cross 64K boundaries. */ 859 if (rec_addr + now > 0xffff) 860 now = 0x10000 - rec_addr; 861 862 if (! ihex_write_record (abfd, now, rec_addr, 0, p)) 863 return FALSE; 864 865 where += now; 866 p += now; 867 count -= now; 868 } 869 } 870 871 if (abfd->start_address != 0) 872 { 873 bfd_vma start; 874 bfd_byte startbuf[4]; 875 876 start = abfd->start_address; 877 878 if (start <= 0xfffff) 879 { 880 startbuf[0] = (bfd_byte)((start & 0xf0000) >> 12) & 0xff; 881 startbuf[1] = 0; 882 startbuf[2] = (bfd_byte)(start >> 8) & 0xff; 883 startbuf[3] = (bfd_byte)start & 0xff; 884 if (! ihex_write_record (abfd, 4, 0, 3, startbuf)) 885 return FALSE; 886 } 887 else 888 { 889 startbuf[0] = (bfd_byte)(start >> 24) & 0xff; 890 startbuf[1] = (bfd_byte)(start >> 16) & 0xff; 891 startbuf[2] = (bfd_byte)(start >> 8) & 0xff; 892 startbuf[3] = (bfd_byte)start & 0xff; 893 if (! ihex_write_record (abfd, 4, 0, 5, startbuf)) 894 return FALSE; 895 } 896 } 897 898 if (! ihex_write_record (abfd, 0, 0, 1, NULL)) 899 return FALSE; 900 901 return TRUE; 902} 903 904/* Set the architecture for the output file. The architecture is 905 irrelevant, so we ignore errors about unknown architectures. */ 906 907static bfd_boolean 908ihex_set_arch_mach (bfd *abfd, 909 enum bfd_architecture arch, 910 unsigned long mach) 911{ 912 if (! bfd_default_set_arch_mach (abfd, arch, mach)) 913 { 914 if (arch != bfd_arch_unknown) 915 return FALSE; 916 } 917 return TRUE; 918} 919 920/* Get the size of the headers, for the linker. */ 921 922static int 923ihex_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED, 924 struct bfd_link_info *info ATTRIBUTE_UNUSED) 925{ 926 return 0; 927} 928 929/* Some random definitions for the target vector. */ 930 931#define ihex_close_and_cleanup _bfd_generic_close_and_cleanup 932#define ihex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info 933#define ihex_new_section_hook _bfd_generic_new_section_hook 934#define ihex_get_section_contents_in_window _bfd_generic_get_section_contents_in_window 935#define ihex_get_symtab_upper_bound _bfd_long_bfd_0 936#define ihex_canonicalize_symtab _bfd_nosymbols_canonicalize_symtab 937#define ihex_make_empty_symbol _bfd_generic_make_empty_symbol 938#define ihex_print_symbol _bfd_nosymbols_print_symbol 939#define ihex_get_symbol_info _bfd_nosymbols_get_symbol_info 940#define ihex_get_symbol_version_string _bfd_nosymbols_get_symbol_version_string 941#define ihex_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false 942#define ihex_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name 943#define ihex_get_lineno _bfd_nosymbols_get_lineno 944#define ihex_find_nearest_line _bfd_nosymbols_find_nearest_line 945#define ihex_find_line _bfd_nosymbols_find_line 946#define ihex_find_inliner_info _bfd_nosymbols_find_inliner_info 947#define ihex_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol 948#define ihex_read_minisymbols _bfd_nosymbols_read_minisymbols 949#define ihex_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol 950#define ihex_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents 951#define ihex_bfd_relax_section bfd_generic_relax_section 952#define ihex_bfd_gc_sections bfd_generic_gc_sections 953#define ihex_bfd_lookup_section_flags bfd_generic_lookup_section_flags 954#define ihex_bfd_merge_sections bfd_generic_merge_sections 955#define ihex_bfd_is_group_section bfd_generic_is_group_section 956#define ihex_bfd_group_name bfd_generic_group_name 957#define ihex_bfd_discard_group bfd_generic_discard_group 958#define ihex_section_already_linked _bfd_generic_section_already_linked 959#define ihex_bfd_define_common_symbol bfd_generic_define_common_symbol 960#define ihex_bfd_link_hide_symbol _bfd_generic_link_hide_symbol 961#define ihex_bfd_define_start_stop bfd_generic_define_start_stop 962#define ihex_bfd_link_hash_table_create _bfd_generic_link_hash_table_create 963#define ihex_bfd_link_add_symbols _bfd_generic_link_add_symbols 964#define ihex_bfd_link_just_syms _bfd_generic_link_just_syms 965#define ihex_bfd_copy_link_hash_symbol_type _bfd_generic_copy_link_hash_symbol_type 966#define ihex_bfd_final_link _bfd_generic_final_link 967#define ihex_bfd_link_split_section _bfd_generic_link_split_section 968#define ihex_bfd_link_check_relocs _bfd_generic_link_check_relocs 969 970/* The Intel Hex target vector. */ 971 972const bfd_target ihex_vec = 973{ 974 "ihex", /* Name. */ 975 bfd_target_ihex_flavour, 976 BFD_ENDIAN_UNKNOWN, /* Target byte order. */ 977 BFD_ENDIAN_UNKNOWN, /* Target headers byte order. */ 978 0, /* Object flags. */ 979 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD), /* Section flags. */ 980 0, /* Leading underscore. */ 981 ' ', /* AR_pad_char. */ 982 16, /* AR_max_namelen. */ 983 0, /* match priority. */ 984 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 985 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 986 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */ 987 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 988 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 989 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */ 990 991 { 992 _bfd_dummy_target, 993 ihex_object_p, /* bfd_check_format. */ 994 _bfd_dummy_target, 995 _bfd_dummy_target, 996 }, 997 { 998 _bfd_bool_bfd_false_error, 999 ihex_mkobject, 1000 _bfd_generic_mkarchive, 1001 _bfd_bool_bfd_false_error, 1002 }, 1003 { /* bfd_write_contents. */ 1004 _bfd_bool_bfd_false_error, 1005 ihex_write_object_contents, 1006 _bfd_write_archive_contents, 1007 _bfd_bool_bfd_false_error, 1008 }, 1009 1010 BFD_JUMP_TABLE_GENERIC (ihex), 1011 BFD_JUMP_TABLE_COPY (_bfd_generic), 1012 BFD_JUMP_TABLE_CORE (_bfd_nocore), 1013 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), 1014 BFD_JUMP_TABLE_SYMBOLS (ihex), 1015 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), 1016 BFD_JUMP_TABLE_WRITE (ihex), 1017 BFD_JUMP_TABLE_LINK (ihex), 1018 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), 1019 1020 NULL, 1021 1022 NULL 1023}; 1024