1 /* BFD back-end for Intel Hex objects.
2 Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3 2006, 2007, 2009, 2011 Free Software Foundation, Inc.
4 Written by Ian Lance Taylor of Cygnus Support <ian@cygnus.com>.
5
6 This file is part of BFD, the Binary File Descriptor library.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
22
23
24 /* This is what Intel Hex files look like:
25
26 1. INTEL FORMATS
27
28 A. Intel 1
29
30 16-bit address-field format, for files 64k bytes in length or less.
31
32 DATA RECORD
33 Byte 1 Header = colon(:)
34 2..3 The number of data bytes in hex notation
35 4..5 High byte of the record load address
36 6..7 Low byte of the record load address
37 8..9 Record type, must be "00"
38 10..x Data bytes in hex notation:
39 x = (number of bytes - 1) * 2 + 11
40 x+1..x+2 Checksum in hex notation
41 x+3..x+4 Carriage return, line feed
42
43 END RECORD
44 Byte 1 Header = colon (:)
45 2..3 The byte count, must be "00"
46 4..7 Transfer-address (usually "0000")
47 the jump-to address, execution start address
48 8..9 Record type, must be "01"
49 10..11 Checksum, in hex notation
50 12..13 Carriage return, line feed
51
52 B. INTEL 2
53
54 MCS-86 format, using a 20-bit address for files larger than 64K bytes.
55
56 DATA RECORD
57 Byte 1 Header = colon (:)
58 2..3 The byte count of this record, hex notation
59 4..5 High byte of the record load address
60 6..7 Low byte of the record load address
61 8..9 Record type, must be "00"
62 10..x The data bytes in hex notation:
63 x = (number of data bytes - 1) * 2 + 11
64 x+1..x+2 Checksum in hex notation
65 x+3..x+4 Carriage return, line feed
66
67 EXTENDED ADDRESS RECORD
68 Byte 1 Header = colon(:)
69 2..3 The byte count, must be "02"
70 4..7 Load address, must be "0000"
71 8..9 Record type, must be "02"
72 10..11 High byte of the offset address
73 12..13 Low byte of the offset address
74 14..15 Checksum in hex notation
75 16..17 Carriage return, line feed
76
77 The checksums are the two's complement of the 8-bit sum
78 without carry of the byte count, offset address, and the
79 record type.
80
81 START ADDRESS RECORD
82 Byte 1 Header = colon (:)
83 2..3 The byte count, must be "04"
84 4..7 Load address, must be "0000"
85 8..9 Record type, must be "03"
86 10..13 8086 CS value
87 14..17 8086 IP value
88 18..19 Checksum in hex notation
89 20..21 Carriage return, line feed
90
91 Another document reports these additional types:
92
93 EXTENDED LINEAR ADDRESS RECORD
94 Byte 1 Header = colon (:)
95 2..3 The byte count, must be "02"
96 4..7 Load address, must be "0000"
97 8..9 Record type, must be "04"
98 10..13 Upper 16 bits of address of subsequent records
99 14..15 Checksum in hex notation
100 16..17 Carriage return, line feed
101
102 START LINEAR ADDRESS RECORD
103 Byte 1 Header = colon (:)
104 2..3 The byte count, must be "02"
105 4..7 Load address, must be "0000"
106 8..9 Record type, must be "05"
107 10..13 Upper 16 bits of start address
108 14..15 Checksum in hex notation
109 16..17 Carriage return, line feed
110
111 The MRI compiler uses this, which is a repeat of type 5:
112
113 EXTENDED START RECORD
114 Byte 1 Header = colon (:)
115 2..3 The byte count, must be "04"
116 4..7 Load address, must be "0000"
117 8..9 Record type, must be "05"
118 10..13 Upper 16 bits of start address
119 14..17 Lower 16 bits of start address
120 18..19 Checksum in hex notation
121 20..21 Carriage return, line feed. */
122
123 #include "sysdep.h"
124 #include "bfd.h"
125 #include "libbfd.h"
126 #include "libiberty.h"
127 #include "safe-ctype.h"
128
129 /* The number of bytes we put on one line during output. */
130
131 #define CHUNK 16
132
133 /* Macros for converting between hex and binary. */
134
135 #define NIBBLE(x) (hex_value (x))
136 #define HEX2(buffer) ((NIBBLE ((buffer)[0]) << 4) + NIBBLE ((buffer)[1]))
137 #define HEX4(buffer) ((HEX2 (buffer) << 8) + HEX2 ((buffer) + 2))
138 #define ISHEX(x) (hex_p (x))
139
140 /* When we write out an ihex value, the values can not be output as
141 they are seen. Instead, we hold them in memory in this structure. */
142
143 struct ihex_data_list
144 {
145 struct ihex_data_list *next;
146 bfd_byte *data;
147 bfd_vma where;
148 bfd_size_type size;
149 };
150
151 /* The ihex tdata information. */
152
153 struct ihex_data_struct
154 {
155 struct ihex_data_list *head;
156 struct ihex_data_list *tail;
157 };
158
159 /* Initialize by filling in the hex conversion array. */
160
161 static void
ihex_init(void)162 ihex_init (void)
163 {
164 static bfd_boolean inited;
165
166 if (! inited)
167 {
168 inited = TRUE;
169 hex_init ();
170 }
171 }
172
173 /* Create an ihex object. */
174
175 static bfd_boolean
ihex_mkobject(bfd * abfd)176 ihex_mkobject (bfd *abfd)
177 {
178 struct ihex_data_struct *tdata;
179
180 tdata = (struct ihex_data_struct *) bfd_alloc (abfd, sizeof (* tdata));
181 if (tdata == NULL)
182 return FALSE;
183
184 abfd->tdata.ihex_data = tdata;
185 tdata->head = NULL;
186 tdata->tail = NULL;
187 return TRUE;
188 }
189
190 /* Read a byte from a BFD. Set *ERRORPTR if an error occurred.
191 Return EOF on error or end of file. */
192
193 static INLINE int
ihex_get_byte(bfd * abfd,bfd_boolean * errorptr)194 ihex_get_byte (bfd *abfd, bfd_boolean *errorptr)
195 {
196 bfd_byte c;
197
198 if (bfd_bread (&c, (bfd_size_type) 1, abfd) != 1)
199 {
200 if (bfd_get_error () != bfd_error_file_truncated)
201 *errorptr = TRUE;
202 return EOF;
203 }
204
205 return (int) (c & 0xff);
206 }
207
208 /* Report a problem in an Intel Hex file. */
209
210 static void
ihex_bad_byte(bfd * abfd,unsigned int lineno,int c,bfd_boolean error)211 ihex_bad_byte (bfd *abfd, unsigned int lineno, int c, bfd_boolean error)
212 {
213 if (c == EOF)
214 {
215 if (! error)
216 bfd_set_error (bfd_error_file_truncated);
217 }
218 else
219 {
220 char buf[10];
221
222 if (! ISPRINT (c))
223 sprintf (buf, "\\%03o", (unsigned int) c);
224 else
225 {
226 buf[0] = c;
227 buf[1] = '\0';
228 }
229 (*_bfd_error_handler)
230 (_("%B:%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
239 static bfd_boolean
ihex_scan(bfd * abfd)240 ihex_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 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, hdr[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 (_("%B:%u: bad checksum in Intel Hex file (expected %u, found %u)"),
338 abfd, lineno,
339 (- chksum) & 0xff, (unsigned int) HEX2 (buf + 2 * i));
340 bfd_set_error (bfd_error_bad_value);
341 goto error_return;
342 }
343
344 switch (type)
345 {
346 case 0:
347 /* This is a data record. */
348 if (sec != NULL
349 && sec->vma + sec->size == extbase + segbase + addr)
350 {
351 /* This data goes at the end of the section we are
352 currently building. */
353 sec->size += len;
354 }
355 else if (len > 0)
356 {
357 char secbuf[20];
358 char *secname;
359 bfd_size_type amt;
360 flagword flags;
361
362 sprintf (secbuf, ".sec%d", bfd_count_sections (abfd) + 1);
363 amt = strlen (secbuf) + 1;
364 secname = (char *) bfd_alloc (abfd, amt);
365 if (secname == NULL)
366 goto error_return;
367 strcpy (secname, secbuf);
368 flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC;
369 sec = bfd_make_section_with_flags (abfd, secname, flags);
370 if (sec == NULL)
371 goto error_return;
372 sec->vma = extbase + segbase + addr;
373 sec->lma = extbase + segbase + addr;
374 sec->size = len;
375 sec->filepos = pos;
376 }
377 break;
378
379 case 1:
380 /* An end record. */
381 if (abfd->start_address == 0)
382 abfd->start_address = addr;
383 if (buf != NULL)
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 (_("%B:%u: bad extended address record length in Intel Hex file"),
393 abfd, lineno);
394 bfd_set_error (bfd_error_bad_value);
395 goto error_return;
396 }
397
398 segbase = HEX4 (buf) << 4;
399
400 sec = NULL;
401
402 break;
403
404 case 3:
405 /* An extended start address record. */
406 if (len != 4)
407 {
408 (*_bfd_error_handler)
409 (_("%B:%u: bad extended start address length in Intel Hex file"),
410 abfd, lineno);
411 bfd_set_error (bfd_error_bad_value);
412 goto error_return;
413 }
414
415 abfd->start_address += (HEX4 (buf) << 4) + HEX4 (buf + 4);
416
417 sec = NULL;
418
419 break;
420
421 case 4:
422 /* An extended linear address record. */
423 if (len != 2)
424 {
425 (*_bfd_error_handler)
426 (_("%B:%u: bad extended linear address record length in Intel Hex file"),
427 abfd, lineno);
428 bfd_set_error (bfd_error_bad_value);
429 goto error_return;
430 }
431
432 extbase = HEX4 (buf) << 16;
433
434 sec = NULL;
435
436 break;
437
438 case 5:
439 /* An extended linear start address record. */
440 if (len != 2 && len != 4)
441 {
442 (*_bfd_error_handler)
443 (_("%B:%u: bad extended linear start address length in Intel Hex file"),
444 abfd, lineno);
445 bfd_set_error (bfd_error_bad_value);
446 goto error_return;
447 }
448
449 if (len == 2)
450 abfd->start_address += HEX4 (buf) << 16;
451 else
452 abfd->start_address = (HEX4 (buf) << 16) + HEX4 (buf + 4);
453
454 sec = NULL;
455
456 break;
457
458 default:
459 (*_bfd_error_handler)
460 (_("%B:%u: unrecognized ihex type %u in Intel Hex file"),
461 abfd, lineno, type);
462 bfd_set_error (bfd_error_bad_value);
463 goto error_return;
464 }
465 }
466 }
467
468 if (error)
469 goto error_return;
470
471 if (buf != NULL)
472 free (buf);
473
474 return TRUE;
475
476 error_return:
477 if (buf != NULL)
478 free (buf);
479 return FALSE;
480 }
481
482 /* Try to recognize an Intel Hex file. */
483
484 static const bfd_target *
ihex_object_p(bfd * abfd)485 ihex_object_p (bfd *abfd)
486 {
487 void * tdata_save;
488 bfd_byte b[9];
489 unsigned int i;
490 unsigned int type;
491
492 ihex_init ();
493
494 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
495 return NULL;
496 if (bfd_bread (b, (bfd_size_type) 9, abfd) != 9)
497 {
498 if (bfd_get_error () == bfd_error_file_truncated)
499 bfd_set_error (bfd_error_wrong_format);
500 return NULL;
501 }
502
503 if (b[0] != ':')
504 {
505 bfd_set_error (bfd_error_wrong_format);
506 return NULL;
507 }
508
509 for (i = 1; i < 9; i++)
510 {
511 if (! ISHEX (b[i]))
512 {
513 bfd_set_error (bfd_error_wrong_format);
514 return NULL;
515 }
516 }
517
518 type = HEX2 (b + 7);
519 if (type > 5)
520 {
521 bfd_set_error (bfd_error_wrong_format);
522 return NULL;
523 }
524
525 /* OK, it looks like it really is an Intel Hex file. */
526 tdata_save = abfd->tdata.any;
527 if (! ihex_mkobject (abfd) || ! ihex_scan (abfd))
528 {
529 if (abfd->tdata.any != tdata_save && abfd->tdata.any != NULL)
530 bfd_release (abfd, abfd->tdata.any);
531 abfd->tdata.any = tdata_save;
532 return NULL;
533 }
534
535 return abfd->xvec;
536 }
537
538 /* Read the contents of a section in an Intel Hex file. */
539
540 static bfd_boolean
ihex_read_section(bfd * abfd,asection * section,bfd_byte * contents)541 ihex_read_section (bfd *abfd, asection *section, bfd_byte *contents)
542 {
543 int c;
544 bfd_byte *p;
545 bfd_byte *buf = NULL;
546 size_t bufsize;
547 bfd_boolean error;
548
549 if (bfd_seek (abfd, section->filepos, SEEK_SET) != 0)
550 goto error_return;
551
552 p = contents;
553 bufsize = 0;
554 error = FALSE;
555 while ((c = ihex_get_byte (abfd, &error)) != EOF)
556 {
557 char hdr[8];
558 unsigned int len;
559 unsigned int type;
560 unsigned int i;
561
562 if (c == '\r' || c == '\n')
563 continue;
564
565 /* This is called after ihex_scan has succeeded, so we ought to
566 know the exact format. */
567 BFD_ASSERT (c == ':');
568
569 if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8)
570 goto error_return;
571
572 len = HEX2 (hdr);
573 type = HEX2 (hdr + 6);
574
575 /* We should only see type 0 records here. */
576 if (type != 0)
577 {
578 (*_bfd_error_handler)
579 (_("%B: internal error in ihex_read_section"), abfd);
580 bfd_set_error (bfd_error_bad_value);
581 goto error_return;
582 }
583
584 if (len * 2 > bufsize)
585 {
586 buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) len * 2);
587 if (buf == NULL)
588 goto error_return;
589 bufsize = len * 2;
590 }
591
592 if (bfd_bread (buf, (bfd_size_type) len * 2, abfd) != len * 2)
593 goto error_return;
594
595 for (i = 0; i < len; i++)
596 *p++ = HEX2 (buf + 2 * i);
597 if ((bfd_size_type) (p - contents) >= section->size)
598 {
599 /* We've read everything in the section. */
600 if (buf != NULL)
601 free (buf);
602 return TRUE;
603 }
604
605 /* Skip the checksum. */
606 if (bfd_bread (buf, (bfd_size_type) 2, abfd) != 2)
607 goto error_return;
608 }
609
610 if ((bfd_size_type) (p - contents) < section->size)
611 {
612 (*_bfd_error_handler)
613 (_("%B: bad section length in ihex_read_section"), abfd);
614 bfd_set_error (bfd_error_bad_value);
615 goto error_return;
616 }
617
618 if (buf != NULL)
619 free (buf);
620
621 return TRUE;
622
623 error_return:
624 if (buf != NULL)
625 free (buf);
626 return FALSE;
627 }
628
629 /* Get the contents of a section in an Intel Hex file. */
630
631 static bfd_boolean
ihex_get_section_contents(bfd * abfd,asection * section,void * location,file_ptr offset,bfd_size_type count)632 ihex_get_section_contents (bfd *abfd,
633 asection *section,
634 void * location,
635 file_ptr offset,
636 bfd_size_type count)
637 {
638 if (section->used_by_bfd == NULL)
639 {
640 section->used_by_bfd = bfd_alloc (abfd, section->size);
641 if (section->used_by_bfd == NULL)
642 return FALSE;
643 if (! ihex_read_section (abfd, section,
644 (bfd_byte *) section->used_by_bfd))
645 return FALSE;
646 }
647
648 memcpy (location, (bfd_byte *) section->used_by_bfd + offset,
649 (size_t) count);
650
651 return TRUE;
652 }
653
654 /* Set the contents of a section in an Intel Hex file. */
655
656 static bfd_boolean
ihex_set_section_contents(bfd * abfd,asection * section,const void * location,file_ptr offset,bfd_size_type count)657 ihex_set_section_contents (bfd *abfd,
658 asection *section,
659 const void * location,
660 file_ptr offset,
661 bfd_size_type count)
662 {
663 struct ihex_data_list *n;
664 bfd_byte *data;
665 struct ihex_data_struct *tdata;
666
667 if (count == 0
668 || (section->flags & SEC_ALLOC) == 0
669 || (section->flags & SEC_LOAD) == 0)
670 return TRUE;
671
672 n = (struct ihex_data_list *) bfd_alloc (abfd, sizeof (* n));
673 if (n == NULL)
674 return FALSE;
675
676 data = (bfd_byte *) bfd_alloc (abfd, count);
677 if (data == NULL)
678 return FALSE;
679 memcpy (data, location, (size_t) count);
680
681 n->data = data;
682 n->where = section->lma + offset;
683 n->size = count;
684
685 /* Sort the records by address. Optimize for the common case of
686 adding a record to the end of the list. */
687 tdata = abfd->tdata.ihex_data;
688 if (tdata->tail != NULL
689 && n->where >= tdata->tail->where)
690 {
691 tdata->tail->next = n;
692 n->next = NULL;
693 tdata->tail = n;
694 }
695 else
696 {
697 struct ihex_data_list **pp;
698
699 for (pp = &tdata->head;
700 *pp != NULL && (*pp)->where < n->where;
701 pp = &(*pp)->next)
702 ;
703 n->next = *pp;
704 *pp = n;
705 if (n->next == NULL)
706 tdata->tail = n;
707 }
708
709 return TRUE;
710 }
711
712 /* Write a record out to an Intel Hex file. */
713
714 static bfd_boolean
ihex_write_record(bfd * abfd,size_t count,unsigned int addr,unsigned int type,bfd_byte * data)715 ihex_write_record (bfd *abfd,
716 size_t count,
717 unsigned int addr,
718 unsigned int type,
719 bfd_byte *data)
720 {
721 static const char digs[] = "0123456789ABCDEF";
722 char buf[9 + CHUNK * 2 + 4];
723 char *p;
724 unsigned int chksum;
725 unsigned int i;
726 size_t total;
727
728 #define TOHEX(buf, v) \
729 ((buf)[0] = digs[((v) >> 4) & 0xf], (buf)[1] = digs[(v) & 0xf])
730
731 buf[0] = ':';
732 TOHEX (buf + 1, count);
733 TOHEX (buf + 3, (addr >> 8) & 0xff);
734 TOHEX (buf + 5, addr & 0xff);
735 TOHEX (buf + 7, type);
736
737 chksum = count + addr + (addr >> 8) + type;
738
739 for (i = 0, p = buf + 9; i < count; i++, p += 2, data++)
740 {
741 TOHEX (p, *data);
742 chksum += *data;
743 }
744
745 TOHEX (p, (- chksum) & 0xff);
746 p[2] = '\r';
747 p[3] = '\n';
748
749 total = 9 + count * 2 + 4;
750 if (bfd_bwrite (buf, (bfd_size_type) total, abfd) != total)
751 return FALSE;
752
753 return TRUE;
754 }
755
756 /* Write out an Intel Hex file. */
757
758 static bfd_boolean
ihex_write_object_contents(bfd * abfd)759 ihex_write_object_contents (bfd *abfd)
760 {
761 bfd_vma segbase;
762 bfd_vma extbase;
763 struct ihex_data_list *l;
764
765 segbase = 0;
766 extbase = 0;
767 for (l = abfd->tdata.ihex_data->head; l != NULL; l = l->next)
768 {
769 bfd_vma where;
770 bfd_byte *p;
771 bfd_size_type count;
772
773 where = l->where;
774 p = l->data;
775 count = l->size;
776
777 while (count > 0)
778 {
779 size_t now;
780 unsigned int rec_addr;
781
782 now = count;
783 if (count > CHUNK)
784 now = CHUNK;
785
786 if (where > segbase + extbase + 0xffff)
787 {
788 bfd_byte addr[2];
789
790 /* We need a new base address. */
791 if (where <= 0xfffff)
792 {
793 /* The addresses should be sorted. */
794 BFD_ASSERT (extbase == 0);
795
796 segbase = where & 0xf0000;
797 addr[0] = (bfd_byte)(segbase >> 12) & 0xff;
798 addr[1] = (bfd_byte)(segbase >> 4) & 0xff;
799 if (! ihex_write_record (abfd, 2, 0, 2, addr))
800 return FALSE;
801 }
802 else
803 {
804 /* The extended address record and the extended
805 linear address record are combined, at least by
806 some readers. We need an extended linear address
807 record here, so if we've already written out an
808 extended address record, zero it out to avoid
809 confusion. */
810 if (segbase != 0)
811 {
812 addr[0] = 0;
813 addr[1] = 0;
814 if (! ihex_write_record (abfd, 2, 0, 2, addr))
815 return FALSE;
816 segbase = 0;
817 }
818
819 extbase = where & 0xffff0000;
820 if (where > extbase + 0xffff)
821 {
822 char buf[20];
823
824 sprintf_vma (buf, where);
825 (*_bfd_error_handler)
826 (_("%s: address 0x%s out of range for Intel Hex file"),
827 bfd_get_filename (abfd), buf);
828 bfd_set_error (bfd_error_bad_value);
829 return FALSE;
830 }
831 addr[0] = (bfd_byte)(extbase >> 24) & 0xff;
832 addr[1] = (bfd_byte)(extbase >> 16) & 0xff;
833 if (! ihex_write_record (abfd, 2, 0, 4, addr))
834 return FALSE;
835 }
836 }
837
838 rec_addr = where - (extbase + segbase);
839
840 /* Output records shouldn't cross 64K boundaries. */
841 if (rec_addr + now > 0xffff)
842 now = 0x10000 - rec_addr;
843
844 if (! ihex_write_record (abfd, now, rec_addr, 0, p))
845 return FALSE;
846
847 where += now;
848 p += now;
849 count -= now;
850 }
851 }
852
853 if (abfd->start_address != 0)
854 {
855 bfd_vma start;
856 bfd_byte startbuf[4];
857
858 start = abfd->start_address;
859
860 if (start <= 0xfffff)
861 {
862 startbuf[0] = (bfd_byte)((start & 0xf0000) >> 12) & 0xff;
863 startbuf[1] = 0;
864 startbuf[2] = (bfd_byte)(start >> 8) & 0xff;
865 startbuf[3] = (bfd_byte)start & 0xff;
866 if (! ihex_write_record (abfd, 4, 0, 3, startbuf))
867 return FALSE;
868 }
869 else
870 {
871 startbuf[0] = (bfd_byte)(start >> 24) & 0xff;
872 startbuf[1] = (bfd_byte)(start >> 16) & 0xff;
873 startbuf[2] = (bfd_byte)(start >> 8) & 0xff;
874 startbuf[3] = (bfd_byte)start & 0xff;
875 if (! ihex_write_record (abfd, 4, 0, 5, startbuf))
876 return FALSE;
877 }
878 }
879
880 if (! ihex_write_record (abfd, 0, 0, 1, NULL))
881 return FALSE;
882
883 return TRUE;
884 }
885
886 /* Set the architecture for the output file. The architecture is
887 irrelevant, so we ignore errors about unknown architectures. */
888
889 static bfd_boolean
ihex_set_arch_mach(bfd * abfd,enum bfd_architecture arch,unsigned long mach)890 ihex_set_arch_mach (bfd *abfd,
891 enum bfd_architecture arch,
892 unsigned long mach)
893 {
894 if (! bfd_default_set_arch_mach (abfd, arch, mach))
895 {
896 if (arch != bfd_arch_unknown)
897 return FALSE;
898 }
899 return TRUE;
900 }
901
902 /* Get the size of the headers, for the linker. */
903
904 static int
ihex_sizeof_headers(bfd * abfd ATTRIBUTE_UNUSED,struct bfd_link_info * info ATTRIBUTE_UNUSED)905 ihex_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
906 struct bfd_link_info *info ATTRIBUTE_UNUSED)
907 {
908 return 0;
909 }
910
911 /* Some random definitions for the target vector. */
912
913 #define ihex_close_and_cleanup _bfd_generic_close_and_cleanup
914 #define ihex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
915 #define ihex_new_section_hook _bfd_generic_new_section_hook
916 #define ihex_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
917 #define ihex_get_symtab_upper_bound bfd_0l
918 #define ihex_canonicalize_symtab ((long (*) (bfd *, asymbol **)) bfd_0l)
919 #define ihex_make_empty_symbol _bfd_generic_make_empty_symbol
920 #define ihex_print_symbol _bfd_nosymbols_print_symbol
921 #define ihex_get_symbol_info _bfd_nosymbols_get_symbol_info
922 #define ihex_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
923 #define ihex_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
924 #define ihex_get_lineno _bfd_nosymbols_get_lineno
925 #define ihex_find_nearest_line _bfd_nosymbols_find_nearest_line
926 #define ihex_find_inliner_info _bfd_nosymbols_find_inliner_info
927 #define ihex_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
928 #define ihex_read_minisymbols _bfd_nosymbols_read_minisymbols
929 #define ihex_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol
930 #define ihex_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
931 #define ihex_bfd_relax_section bfd_generic_relax_section
932 #define ihex_bfd_gc_sections bfd_generic_gc_sections
933 #define ihex_bfd_lookup_section_flags bfd_generic_lookup_section_flags
934 #define ihex_bfd_merge_sections bfd_generic_merge_sections
935 #define ihex_bfd_is_group_section bfd_generic_is_group_section
936 #define ihex_bfd_discard_group bfd_generic_discard_group
937 #define ihex_section_already_linked _bfd_generic_section_already_linked
938 #define ihex_bfd_define_common_symbol bfd_generic_define_common_symbol
939 #define ihex_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
940 #define ihex_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
941 #define ihex_bfd_link_add_symbols _bfd_generic_link_add_symbols
942 #define ihex_bfd_link_just_syms _bfd_generic_link_just_syms
943 #define ihex_bfd_copy_link_hash_symbol_type \
944 _bfd_generic_copy_link_hash_symbol_type
945 #define ihex_bfd_final_link _bfd_generic_final_link
946 #define ihex_bfd_link_split_section _bfd_generic_link_split_section
947
948 /* The Intel Hex target vector. */
949
950 const bfd_target ihex_vec =
951 {
952 "ihex", /* Name. */
953 bfd_target_ihex_flavour,
954 BFD_ENDIAN_UNKNOWN, /* Target byte order. */
955 BFD_ENDIAN_UNKNOWN, /* Target headers byte order. */
956 0, /* Object flags. */
957 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD), /* Section flags. */
958 0, /* Leading underscore. */
959 ' ', /* AR_pad_char. */
960 16, /* AR_max_namelen. */
961 0, /* match priority. */
962 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
963 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
964 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
965 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
966 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
967 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
968
969 {
970 _bfd_dummy_target,
971 ihex_object_p, /* bfd_check_format. */
972 _bfd_dummy_target,
973 _bfd_dummy_target,
974 },
975 {
976 bfd_false,
977 ihex_mkobject,
978 _bfd_generic_mkarchive,
979 bfd_false,
980 },
981 { /* bfd_write_contents. */
982 bfd_false,
983 ihex_write_object_contents,
984 _bfd_write_archive_contents,
985 bfd_false,
986 },
987
988 BFD_JUMP_TABLE_GENERIC (ihex),
989 BFD_JUMP_TABLE_COPY (_bfd_generic),
990 BFD_JUMP_TABLE_CORE (_bfd_nocore),
991 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
992 BFD_JUMP_TABLE_SYMBOLS (ihex),
993 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
994 BFD_JUMP_TABLE_WRITE (ihex),
995 BFD_JUMP_TABLE_LINK (ihex),
996 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
997
998 NULL,
999
1000 NULL
1001 };
1002