bfd:
[deliverable/binutils-gdb.git] / bfd / ihex.c
CommitLineData
252b5132 1/* BFD back-end for Intel Hex objects.
116c20d2 2 Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
dc810e39 3 Free Software Foundation, Inc.
252b5132
RH
4 Written by Ian Lance Taylor of Cygnus Support <ian@cygnus.com>.
5
3d8dbe36 6 This file is part of BFD, the Binary File Descriptor library.
252b5132 7
3d8dbe36
NC
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 2 of the License, or
11 (at your option) any later version.
252b5132 12
3d8dbe36
NC
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.
252b5132 17
3d8dbe36
NC
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
3e110533 20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
252b5132
RH
21
22/* This is what Intel Hex files look like:
23
241. INTEL FORMATS
25
26A. Intel 1
27
28 16-bit address-field format, for files 64k bytes in length or less.
29
30 DATA RECORD
31 Byte 1 Header = colon(:)
32 2..3 The number of data bytes in hex notation
33 4..5 High byte of the record load address
34 6..7 Low byte of the record load address
35 8..9 Record type, must be "00"
36 10..x Data bytes in hex notation:
37 x = (number of bytes - 1) * 2 + 11
38 x+1..x+2 Checksum in hex notation
39 x+3..x+4 Carriage return, line feed
40
41 END RECORD
42 Byte 1 Header = colon (:)
43 2..3 The byte count, must be "00"
44 4..7 Transfer-address (usually "0000")
45 the jump-to address, execution start address
46 8..9 Record type, must be "01"
47 10..11 Checksum, in hex notation
48 12..13 Carriage return, line feed
49
50B. INTEL 2
51
52 MCS-86 format, using a 20-bit address for files larger than 64K bytes.
53
54 DATA RECORD
55 Byte 1 Header = colon (:)
56 2..3 The byte count of this record, hex notation
57 4..5 High byte of the record load address
58 6..7 Low byte of the record load address
59 8..9 Record type, must be "00"
60 10..x The data bytes in hex notation:
61 x = (number of data bytes - 1) * 2 + 11
62 x+1..x+2 Checksum in hex notation
63 x+3..x+4 Carriage return, line feed
64
65 EXTENDED ADDRESS RECORD
66 Byte 1 Header = colon(:)
67 2..3 The byte count, must be "02"
68 4..7 Load address, must be "0000"
69 8..9 Record type, must be "02"
70 10..11 High byte of the offset address
71 12..13 Low byte of the offset address
72 14..15 Checksum in hex notation
73 16..17 Carriage return, line feed
74
75 The checksums are the two's complement of the 8-bit sum
76 without carry of the byte count, offset address, and the
77 record type.
78
79 START ADDRESS RECORD
80 Byte 1 Header = colon (:)
81 2..3 The byte count, must be "04"
82 4..7 Load address, must be "0000"
83 8..9 Record type, must be "03"
84 10..13 8086 CS value
85 14..17 8086 IP value
86 18..19 Checksum in hex notation
87 20..21 Carriage return, line feed
88
89Another document reports these additional types:
90
91 EXTENDED LINEAR ADDRESS RECORD
92 Byte 1 Header = colon (:)
93 2..3 The byte count, must be "02"
94 4..7 Load address, must be "0000"
95 8..9 Record type, must be "04"
96 10..13 Upper 16 bits of address of subsequent records
97 14..15 Checksum in hex notation
98 16..17 Carriage return, line feed
99
100 START LINEAR ADDRESS RECORD
101 Byte 1 Header = colon (:)
102 2..3 The byte count, must be "02"
103 4..7 Load address, must be "0000"
104 8..9 Record type, must be "05"
105 10..13 Upper 16 bits of start address
106 14..15 Checksum in hex notation
107 16..17 Carriage return, line feed
108
109The MRI compiler uses this, which is a repeat of type 5:
110
111 EXTENDED START RECORD
112 Byte 1 Header = colon (:)
113 2..3 The byte count, must be "04"
114 4..7 Load address, must be "0000"
115 8..9 Record type, must be "05"
116 10..13 Upper 16 bits of start address
117 14..17 Lower 16 bits of start address
118 18..19 Checksum in hex notation
116c20d2 119 20..21 Carriage return, line feed. */
252b5132
RH
120
121#include "bfd.h"
122#include "sysdep.h"
123#include "libbfd.h"
124#include "libiberty.h"
3882b010 125#include "safe-ctype.h"
252b5132 126
252b5132
RH
127/* The number of bytes we put on one line during output. */
128
65d7f9a6 129#define CHUNK 16
252b5132 130
3d8dbe36 131/* Macros for converting between hex and binary. */
252b5132 132
3d8dbe36 133#define NIBBLE(x) (hex_value (x))
252b5132
RH
134#define HEX2(buffer) ((NIBBLE ((buffer)[0]) << 4) + NIBBLE ((buffer)[1]))
135#define HEX4(buffer) ((HEX2 (buffer) << 8) + HEX2 ((buffer) + 2))
3d8dbe36 136#define ISHEX(x) (hex_p (x))
252b5132
RH
137
138/* When we write out an ihex value, the values can not be output as
139 they are seen. Instead, we hold them in memory in this structure. */
140
141struct ihex_data_list
142{
143 struct ihex_data_list *next;
144 bfd_byte *data;
145 bfd_vma where;
146 bfd_size_type size;
147};
148
149/* The ihex tdata information. */
150
151struct ihex_data_struct
152{
153 struct ihex_data_list *head;
154 struct ihex_data_list *tail;
155};
156
157/* Initialize by filling in the hex conversion array. */
158
159static void
116c20d2 160ihex_init (void)
252b5132 161{
b34976b6 162 static bfd_boolean inited;
252b5132
RH
163
164 if (! inited)
165 {
b34976b6 166 inited = TRUE;
252b5132
RH
167 hex_init ();
168 }
169}
170
171/* Create an ihex object. */
172
b34976b6 173static bfd_boolean
116c20d2 174ihex_mkobject (bfd *abfd)
252b5132 175{
487e54f2 176 struct ihex_data_struct *tdata;
252b5132 177
116c20d2 178 tdata = bfd_alloc (abfd, sizeof (* tdata));
487e54f2 179 if (tdata == NULL)
b34976b6 180 return FALSE;
487e54f2
AM
181
182 abfd->tdata.ihex_data = tdata;
183 tdata->head = NULL;
184 tdata->tail = NULL;
b34976b6 185 return TRUE;
252b5132
RH
186}
187
188/* Read a byte from a BFD. Set *ERRORPTR if an error occurred.
189 Return EOF on error or end of file. */
190
191static INLINE int
116c20d2 192ihex_get_byte (bfd *abfd, bfd_boolean *errorptr)
252b5132
RH
193{
194 bfd_byte c;
195
dc810e39 196 if (bfd_bread (&c, (bfd_size_type) 1, abfd) != 1)
252b5132
RH
197 {
198 if (bfd_get_error () != bfd_error_file_truncated)
b34976b6 199 *errorptr = TRUE;
252b5132
RH
200 return EOF;
201 }
202
203 return (int) (c & 0xff);
204}
205
206/* Report a problem in an Intel Hex file. */
207
208static void
116c20d2 209ihex_bad_byte (bfd *abfd, unsigned int lineno, int c, bfd_boolean error)
252b5132
RH
210{
211 if (c == EOF)
212 {
213 if (! error)
214 bfd_set_error (bfd_error_file_truncated);
215 }
216 else
217 {
218 char buf[10];
219
3882b010 220 if (! ISPRINT (c))
252b5132
RH
221 sprintf (buf, "\\%03o", (unsigned int) c);
222 else
223 {
224 buf[0] = c;
225 buf[1] = '\0';
226 }
227 (*_bfd_error_handler)
d003868e
AM
228 (_("%B:%d: unexpected character `%s' in Intel Hex file"),
229 abfd, lineno, buf);
252b5132
RH
230 bfd_set_error (bfd_error_bad_value);
231 }
232}
233
234/* Read an Intel hex file and turn it into sections. We create a new
235 section for each contiguous set of bytes. */
236
b34976b6 237static bfd_boolean
116c20d2 238ihex_scan (bfd *abfd)
252b5132
RH
239{
240 bfd_vma segbase;
241 bfd_vma extbase;
242 asection *sec;
dc810e39 243 unsigned int lineno;
b34976b6 244 bfd_boolean error;
252b5132
RH
245 bfd_byte *buf = NULL;
246 size_t bufsize;
247 int c;
248
249 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
250 goto error_return;
251
252 abfd->start_address = 0;
253
254 segbase = 0;
255 extbase = 0;
256 sec = NULL;
257 lineno = 1;
b34976b6 258 error = FALSE;
252b5132 259 bufsize = 0;
3d8dbe36 260
252b5132
RH
261 while ((c = ihex_get_byte (abfd, &error)) != EOF)
262 {
263 if (c == '\r')
264 continue;
265 else if (c == '\n')
266 {
267 ++lineno;
268 continue;
269 }
270 else if (c != ':')
271 {
272 ihex_bad_byte (abfd, lineno, c, error);
273 goto error_return;
274 }
275 else
276 {
277 file_ptr pos;
278 char hdr[8];
279 unsigned int i;
280 unsigned int len;
281 bfd_vma addr;
282 unsigned int type;
283 unsigned int chars;
284 unsigned int chksum;
285
286 /* This is a data record. */
252b5132
RH
287 pos = bfd_tell (abfd) - 1;
288
289 /* Read the header bytes. */
dc810e39 290 if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8)
252b5132
RH
291 goto error_return;
292
293 for (i = 0; i < 8; i++)
294 {
295 if (! ISHEX (hdr[i]))
296 {
297 ihex_bad_byte (abfd, lineno, hdr[i], error);
298 goto error_return;
299 }
300 }
301
302 len = HEX2 (hdr);
303 addr = HEX4 (hdr + 2);
304 type = HEX2 (hdr + 6);
305
306 /* Read the data bytes. */
252b5132
RH
307 chars = len * 2 + 2;
308 if (chars >= bufsize)
309 {
116c20d2 310 buf = bfd_realloc (buf, (bfd_size_type) chars);
252b5132
RH
311 if (buf == NULL)
312 goto error_return;
313 bufsize = chars;
314 }
315
dc810e39 316 if (bfd_bread (buf, (bfd_size_type) chars, abfd) != chars)
252b5132
RH
317 goto error_return;
318
319 for (i = 0; i < chars; i++)
320 {
321 if (! ISHEX (buf[i]))
322 {
323 ihex_bad_byte (abfd, lineno, hdr[i], error);
324 goto error_return;
325 }
326 }
327
328 /* Check the checksum. */
329 chksum = len + addr + (addr >> 8) + type;
330 for (i = 0; i < len; i++)
331 chksum += HEX2 (buf + 2 * i);
332 if (((- chksum) & 0xff) != (unsigned int) HEX2 (buf + 2 * i))
333 {
334 (*_bfd_error_handler)
d003868e
AM
335 (_("%B:%u: bad checksum in Intel Hex file (expected %u, found %u)"),
336 abfd, lineno,
252b5132
RH
337 (- chksum) & 0xff, (unsigned int) HEX2 (buf + 2 * i));
338 bfd_set_error (bfd_error_bad_value);
339 goto error_return;
340 }
341
342 switch (type)
343 {
344 case 0:
345 /* This is a data record. */
346 if (sec != NULL
eea6121a 347 && sec->vma + sec->size == extbase + segbase + addr)
252b5132
RH
348 {
349 /* This data goes at the end of the section we are
350 currently building. */
eea6121a 351 sec->size += len;
252b5132
RH
352 }
353 else if (len > 0)
354 {
355 char secbuf[20];
356 char *secname;
dc810e39 357 bfd_size_type amt;
252b5132
RH
358
359 sprintf (secbuf, ".sec%d", bfd_count_sections (abfd) + 1);
dc810e39 360 amt = strlen (secbuf) + 1;
116c20d2 361 secname = bfd_alloc (abfd, amt);
252b5132
RH
362 if (secname == NULL)
363 goto error_return;
364 strcpy (secname, secbuf);
365 sec = bfd_make_section (abfd, secname);
366 if (sec == NULL)
367 goto error_return;
368 sec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC;
369 sec->vma = extbase + segbase + addr;
370 sec->lma = extbase + segbase + addr;
eea6121a 371 sec->size = len;
252b5132
RH
372 sec->filepos = pos;
373 }
374 break;
375
376 case 1:
377 /* An end record. */
378 if (abfd->start_address == 0)
379 abfd->start_address = addr;
380 if (buf != NULL)
381 free (buf);
b34976b6 382 return TRUE;
252b5132
RH
383
384 case 2:
385 /* An extended address record. */
386 if (len != 2)
387 {
388 (*_bfd_error_handler)
d003868e
AM
389 (_("%B:%u: bad extended address record length in Intel Hex file"),
390 abfd, lineno);
252b5132
RH
391 bfd_set_error (bfd_error_bad_value);
392 goto error_return;
393 }
394
395 segbase = HEX4 (buf) << 4;
396
397 sec = NULL;
398
399 break;
400
401 case 3:
402 /* An extended start address record. */
403 if (len != 4)
404 {
405 (*_bfd_error_handler)
d003868e
AM
406 (_("%B:%u: bad extended start address length in Intel Hex file"),
407 abfd, lineno);
252b5132
RH
408 bfd_set_error (bfd_error_bad_value);
409 goto error_return;
410 }
411
412 abfd->start_address += (HEX4 (buf) << 4) + HEX4 (buf + 4);
413
414 sec = NULL;
415
416 break;
417
418 case 4:
419 /* An extended linear address record. */
420 if (len != 2)
421 {
422 (*_bfd_error_handler)
d003868e
AM
423 (_("%B:%u: bad extended linear address record length in Intel Hex file"),
424 abfd, lineno);
252b5132
RH
425 bfd_set_error (bfd_error_bad_value);
426 goto error_return;
427 }
428
429 extbase = HEX4 (buf) << 16;
430
431 sec = NULL;
432
433 break;
434
435 case 5:
436 /* An extended linear start address record. */
437 if (len != 2 && len != 4)
438 {
439 (*_bfd_error_handler)
d003868e
AM
440 (_("%B:%u: bad extended linear start address length in Intel Hex file"),
441 abfd, lineno);
252b5132
RH
442 bfd_set_error (bfd_error_bad_value);
443 goto error_return;
444 }
445
446 if (len == 2)
447 abfd->start_address += HEX4 (buf) << 16;
448 else
449 abfd->start_address = (HEX4 (buf) << 16) + HEX4 (buf + 4);
450
451 sec = NULL;
452
453 break;
454
455 default:
456 (*_bfd_error_handler)
d003868e
AM
457 (_("%B:%u: unrecognized ihex type %u in Intel Hex file"),
458 abfd, lineno, type);
252b5132
RH
459 bfd_set_error (bfd_error_bad_value);
460 goto error_return;
461 }
462 }
463 }
464
465 if (error)
466 goto error_return;
467
468 if (buf != NULL)
469 free (buf);
470
b34976b6 471 return TRUE;
252b5132
RH
472
473 error_return:
474 if (buf != NULL)
475 free (buf);
b34976b6 476 return FALSE;
252b5132
RH
477}
478
479/* Try to recognize an Intel Hex file. */
480
481static const bfd_target *
116c20d2 482ihex_object_p (bfd *abfd)
252b5132 483{
116c20d2 484 void * tdata_save;
252b5132
RH
485 bfd_byte b[9];
486 unsigned int i;
487 unsigned int type;
488
489 ihex_init ();
490
491 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
492 return NULL;
dc810e39 493 if (bfd_bread (b, (bfd_size_type) 9, abfd) != 9)
252b5132
RH
494 {
495 if (bfd_get_error () == bfd_error_file_truncated)
496 bfd_set_error (bfd_error_wrong_format);
497 return NULL;
498 }
499
500 if (b[0] != ':')
501 {
502 bfd_set_error (bfd_error_wrong_format);
503 return NULL;
504 }
505
506 for (i = 1; i < 9; i++)
507 {
508 if (! ISHEX (b[i]))
509 {
510 bfd_set_error (bfd_error_wrong_format);
511 return NULL;
512 }
513 }
514
515 type = HEX2 (b + 7);
516 if (type > 5)
517 {
518 bfd_set_error (bfd_error_wrong_format);
519 return NULL;
520 }
521
522 /* OK, it looks like it really is an Intel Hex file. */
487e54f2
AM
523 tdata_save = abfd->tdata.any;
524 if (! ihex_mkobject (abfd) || ! ihex_scan (abfd))
525 {
526 if (abfd->tdata.any != tdata_save && abfd->tdata.any != NULL)
527 bfd_release (abfd, abfd->tdata.any);
528 abfd->tdata.any = tdata_save;
529 return NULL;
530 }
252b5132
RH
531
532 return abfd->xvec;
533}
534
535/* Read the contents of a section in an Intel Hex file. */
536
b34976b6 537static bfd_boolean
116c20d2 538ihex_read_section (bfd *abfd, asection *section, bfd_byte *contents)
252b5132
RH
539{
540 int c;
541 bfd_byte *p;
542 bfd_byte *buf = NULL;
543 size_t bufsize;
b34976b6 544 bfd_boolean error;
252b5132
RH
545
546 if (bfd_seek (abfd, section->filepos, SEEK_SET) != 0)
547 goto error_return;
548
549 p = contents;
550 bufsize = 0;
b34976b6 551 error = FALSE;
252b5132
RH
552 while ((c = ihex_get_byte (abfd, &error)) != EOF)
553 {
554 char hdr[8];
555 unsigned int len;
556 bfd_vma addr;
557 unsigned int type;
558 unsigned int i;
559
560 if (c == '\r' || c == '\n')
561 continue;
562
563 /* This is called after ihex_scan has succeeded, so we ought to
564 know the exact format. */
565 BFD_ASSERT (c == ':');
566
dc810e39 567 if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8)
252b5132
RH
568 goto error_return;
569
570 len = HEX2 (hdr);
571 addr = HEX4 (hdr + 2);
572 type = HEX2 (hdr + 6);
573
574 /* We should only see type 0 records here. */
575 if (type != 0)
576 {
577 (*_bfd_error_handler)
d003868e 578 (_("%B: internal error in ihex_read_section"), abfd);
252b5132
RH
579 bfd_set_error (bfd_error_bad_value);
580 goto error_return;
581 }
582
583 if (len * 2 > bufsize)
584 {
116c20d2 585 buf = bfd_realloc (buf, (bfd_size_type) len * 2);
252b5132
RH
586 if (buf == NULL)
587 goto error_return;
588 bufsize = len * 2;
589 }
590
dc810e39 591 if (bfd_bread (buf, (bfd_size_type) len * 2, abfd) != len * 2)
252b5132
RH
592 goto error_return;
593
594 for (i = 0; i < len; i++)
595 *p++ = HEX2 (buf + 2 * i);
eea6121a 596 if ((bfd_size_type) (p - contents) >= section->size)
252b5132
RH
597 {
598 /* We've read everything in the section. */
599 if (buf != NULL)
600 free (buf);
b34976b6 601 return TRUE;
252b5132
RH
602 }
603
604 /* Skip the checksum. */
dc810e39 605 if (bfd_bread (buf, (bfd_size_type) 2, abfd) != 2)
252b5132
RH
606 goto error_return;
607 }
608
eea6121a 609 if ((bfd_size_type) (p - contents) < section->size)
252b5132
RH
610 {
611 (*_bfd_error_handler)
d003868e 612 (_("%B: bad section length in ihex_read_section"), abfd);
252b5132
RH
613 bfd_set_error (bfd_error_bad_value);
614 goto error_return;
615 }
616
617 if (buf != NULL)
618 free (buf);
619
b34976b6 620 return TRUE;
252b5132
RH
621
622 error_return:
623 if (buf != NULL)
624 free (buf);
b34976b6 625 return FALSE;
252b5132
RH
626}
627
628/* Get the contents of a section in an Intel Hex file. */
629
b34976b6 630static bfd_boolean
116c20d2
NC
631ihex_get_section_contents (bfd *abfd,
632 asection *section,
633 void * location,
634 file_ptr offset,
635 bfd_size_type count)
252b5132
RH
636{
637 if (section->used_by_bfd == NULL)
638 {
eea6121a 639 section->used_by_bfd = bfd_alloc (abfd, section->size);
252b5132 640 if (section->used_by_bfd == NULL)
b34976b6 641 return FALSE;
252b5132 642 if (! ihex_read_section (abfd, section, section->used_by_bfd))
b34976b6 643 return FALSE;
252b5132
RH
644 }
645
646 memcpy (location, (bfd_byte *) section->used_by_bfd + offset,
647 (size_t) count);
648
b34976b6 649 return TRUE;
252b5132
RH
650}
651
652/* Set the contents of a section in an Intel Hex file. */
653
b34976b6 654static bfd_boolean
116c20d2
NC
655ihex_set_section_contents (bfd *abfd,
656 asection *section,
657 const void * location,
658 file_ptr offset,
659 bfd_size_type count)
252b5132
RH
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)
b34976b6 668 return TRUE;
252b5132 669
116c20d2 670 n = bfd_alloc (abfd, sizeof (* n));
252b5132 671 if (n == NULL)
b34976b6 672 return FALSE;
252b5132 673
116c20d2 674 data = bfd_alloc (abfd, count);
252b5132 675 if (data == NULL)
b34976b6 676 return FALSE;
252b5132
RH
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 {
116c20d2 695 struct ihex_data_list **pp;
252b5132
RH
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
b34976b6 707 return TRUE;
252b5132
RH
708}
709
710/* Write a record out to an Intel Hex file. */
711
b34976b6 712static bfd_boolean
116c20d2
NC
713ihex_write_record (bfd *abfd,
714 size_t count,
715 unsigned int addr,
716 unsigned int type,
717 bfd_byte *data)
252b5132
RH
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;
dc810e39 724 size_t total;
252b5132
RH
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
dc810e39
AM
747 total = 9 + count * 2 + 4;
748 if (bfd_bwrite (buf, (bfd_size_type) total, abfd) != total)
b34976b6 749 return FALSE;
252b5132 750
b34976b6 751 return TRUE;
252b5132
RH
752}
753
754/* Write out an Intel Hex file. */
755
b34976b6 756static bfd_boolean
116c20d2 757ihex_write_object_contents (bfd *abfd)
252b5132
RH
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 p = l->data;
773 count = l->size;
116c20d2 774
252b5132
RH
775 while (count > 0)
776 {
dc810e39
AM
777 size_t now;
778 unsigned int rec_addr;
252b5132
RH
779
780 now = count;
dc810e39 781 if (count > CHUNK)
252b5132
RH
782 now = CHUNK;
783
784 if (where > segbase + extbase + 0xffff)
785 {
786 bfd_byte addr[2];
787
788 /* We need a new base address. */
789 if (where <= 0xfffff)
790 {
791 /* The addresses should be sorted. */
792 BFD_ASSERT (extbase == 0);
793
794 segbase = where & 0xf0000;
795 addr[0] = (bfd_byte)(segbase >> 12) & 0xff;
796 addr[1] = (bfd_byte)(segbase >> 4) & 0xff;
797 if (! ihex_write_record (abfd, 2, 0, 2, addr))
b34976b6 798 return FALSE;
252b5132
RH
799 }
800 else
801 {
802 /* The extended address record and the extended
803 linear address record are combined, at least by
804 some readers. We need an extended linear address
805 record here, so if we've already written out an
806 extended address record, zero it out to avoid
807 confusion. */
808 if (segbase != 0)
809 {
810 addr[0] = 0;
811 addr[1] = 0;
812 if (! ihex_write_record (abfd, 2, 0, 2, addr))
b34976b6 813 return FALSE;
252b5132
RH
814 segbase = 0;
815 }
816
817 extbase = where & 0xffff0000;
818 if (where > extbase + 0xffff)
819 {
820 char buf[20];
821
822 sprintf_vma (buf, where);
823 (*_bfd_error_handler)
ca09e32b 824 (_("%s: address 0x%s out of range for Intel Hex file"),
252b5132
RH
825 bfd_get_filename (abfd), buf);
826 bfd_set_error (bfd_error_bad_value);
b34976b6 827 return FALSE;
252b5132
RH
828 }
829 addr[0] = (bfd_byte)(extbase >> 24) & 0xff;
830 addr[1] = (bfd_byte)(extbase >> 16) & 0xff;
831 if (! ihex_write_record (abfd, 2, 0, 4, addr))
b34976b6 832 return FALSE;
252b5132
RH
833 }
834 }
835
dc810e39 836 rec_addr = where - (extbase + segbase);
9e81ee67
NC
837
838 /* Output records shouldn't cross 64K boundaries. */
3d8dbe36
NC
839 if (rec_addr + now > 0xffff)
840 now = 0x10000 - rec_addr;
9e81ee67 841
dc810e39 842 if (! ihex_write_record (abfd, now, rec_addr, 0, p))
b34976b6 843 return FALSE;
252b5132
RH
844
845 where += now;
846 p += now;
847 count -= now;
848 }
849 }
850
851 if (abfd->start_address != 0)
852 {
853 bfd_vma start;
854 bfd_byte startbuf[4];
855
856 start = abfd->start_address;
857
858 if (start <= 0xfffff)
859 {
860 startbuf[0] = (bfd_byte)((start & 0xf0000) >> 12) & 0xff;
861 startbuf[1] = 0;
862 startbuf[2] = (bfd_byte)(start >> 8) & 0xff;
863 startbuf[3] = (bfd_byte)start & 0xff;
864 if (! ihex_write_record (abfd, 4, 0, 3, startbuf))
b34976b6 865 return FALSE;
252b5132
RH
866 }
867 else
868 {
869 startbuf[0] = (bfd_byte)(start >> 24) & 0xff;
870 startbuf[1] = (bfd_byte)(start >> 16) & 0xff;
871 startbuf[2] = (bfd_byte)(start >> 8) & 0xff;
872 startbuf[3] = (bfd_byte)start & 0xff;
873 if (! ihex_write_record (abfd, 4, 0, 5, startbuf))
b34976b6 874 return FALSE;
252b5132
RH
875 }
876 }
877
878 if (! ihex_write_record (abfd, 0, 0, 1, NULL))
b34976b6 879 return FALSE;
252b5132 880
b34976b6 881 return TRUE;
252b5132
RH
882}
883
252b5132
RH
884/* Set the architecture for the output file. The architecture is
885 irrelevant, so we ignore errors about unknown architectures. */
886
b34976b6 887static bfd_boolean
116c20d2
NC
888ihex_set_arch_mach (bfd *abfd,
889 enum bfd_architecture arch,
890 unsigned long mach)
252b5132
RH
891{
892 if (! bfd_default_set_arch_mach (abfd, arch, mach))
893 {
894 if (arch != bfd_arch_unknown)
b34976b6 895 return FALSE;
252b5132 896 }
b34976b6 897 return TRUE;
252b5132
RH
898}
899
900/* Get the size of the headers, for the linker. */
901
252b5132 902static int
116c20d2 903ihex_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean exec ATTRIBUTE_UNUSED)
252b5132
RH
904{
905 return 0;
906}
907
908/* Some random definitions for the target vector. */
909
116c20d2
NC
910#define ihex_close_and_cleanup _bfd_generic_close_and_cleanup
911#define ihex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
912#define ihex_new_section_hook _bfd_generic_new_section_hook
913#define ihex_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
914#define ihex_get_symtab_upper_bound bfd_0l
915#define ihex_canonicalize_symtab ((long (*) (bfd *, asymbol **)) bfd_0l)
916#define ihex_make_empty_symbol _bfd_generic_make_empty_symbol
917#define ihex_print_symbol _bfd_nosymbols_print_symbol
918#define ihex_get_symbol_info _bfd_nosymbols_get_symbol_info
919#define ihex_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
920#define ihex_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
921#define ihex_get_lineno _bfd_nosymbols_get_lineno
922#define ihex_find_nearest_line _bfd_nosymbols_find_nearest_line
4ab527b0 923#define ihex_find_inliner_info _bfd_nosymbols_find_inliner_info
116c20d2
NC
924#define ihex_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
925#define ihex_read_minisymbols _bfd_nosymbols_read_minisymbols
926#define ihex_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol
927#define ihex_get_reloc_upper_bound ((long (*) (bfd *, asection *)) bfd_0l)
928#define ihex_canonicalize_reloc ((long (*) (bfd *, asection *, arelent **, asymbol **)) bfd_0l)
929#define ihex_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
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_merge_sections bfd_generic_merge_sections
934#define ihex_bfd_is_group_section bfd_generic_is_group_section
935#define ihex_bfd_discard_group bfd_generic_discard_group
936#define ihex_section_already_linked _bfd_generic_section_already_linked
937#define ihex_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
938#define ihex_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
939#define ihex_bfd_link_add_symbols _bfd_generic_link_add_symbols
940#define ihex_bfd_link_just_syms _bfd_generic_link_just_syms
941#define ihex_bfd_final_link _bfd_generic_final_link
942#define ihex_bfd_link_split_section _bfd_generic_link_split_section
252b5132
RH
943
944/* The Intel Hex target vector. */
945
946const bfd_target ihex_vec =
947{
116c20d2 948 "ihex", /* Name. */
252b5132 949 bfd_target_ihex_flavour,
116c20d2
NC
950 BFD_ENDIAN_UNKNOWN, /* Target byte order. */
951 BFD_ENDIAN_UNKNOWN, /* Target headers byte order. */
952 0, /* Object flags. */
953 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD), /* Section flags. */
954 0, /* Leading underscore. */
955 ' ', /* AR_pad_char. */
956 16, /* AR_max_namelen. */
252b5132
RH
957 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
958 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
116c20d2 959 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
252b5132
RH
960 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
961 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
116c20d2 962 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
252b5132
RH
963
964 {
965 _bfd_dummy_target,
116c20d2 966 ihex_object_p, /* bfd_check_format. */
252b5132
RH
967 _bfd_dummy_target,
968 _bfd_dummy_target,
969 },
970 {
971 bfd_false,
972 ihex_mkobject,
973 _bfd_generic_mkarchive,
974 bfd_false,
975 },
116c20d2 976 { /* bfd_write_contents. */
252b5132
RH
977 bfd_false,
978 ihex_write_object_contents,
979 _bfd_write_archive_contents,
980 bfd_false,
981 },
982
983 BFD_JUMP_TABLE_GENERIC (ihex),
984 BFD_JUMP_TABLE_COPY (_bfd_generic),
985 BFD_JUMP_TABLE_CORE (_bfd_nocore),
986 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
987 BFD_JUMP_TABLE_SYMBOLS (ihex),
988 BFD_JUMP_TABLE_RELOCS (ihex),
989 BFD_JUMP_TABLE_WRITE (ihex),
990 BFD_JUMP_TABLE_LINK (ihex),
991 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
992
c3c89269 993 NULL,
dc810e39 994
116c20d2 995 NULL
252b5132 996};
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