Commit | Line | Data |
---|---|---|
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 | ||
24 | 1. INTEL FORMATS | |
25 | ||
26 | A. 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 | ||
50 | B. 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 | ||
89 | Another 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 | ||
109 | The 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 | ||
141 | struct 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 | ||
151 | struct 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 | ||
159 | static void | |
116c20d2 | 160 | ihex_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 | 173 | static bfd_boolean |
116c20d2 | 174 | ihex_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 | ||
191 | static INLINE int | |
116c20d2 | 192 | ihex_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 | ||
208 | static void | |
116c20d2 | 209 | ihex_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 | 237 | static bfd_boolean |
116c20d2 | 238 | ihex_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 | ||
481 | static const bfd_target * | |
116c20d2 | 482 | ihex_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 | 537 | static bfd_boolean |
116c20d2 | 538 | ihex_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 | 630 | static bfd_boolean |
116c20d2 NC |
631 | ihex_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 | 654 | static bfd_boolean |
116c20d2 NC |
655 | ihex_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 | 712 | static bfd_boolean |
116c20d2 NC |
713 | ihex_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 | 756 | static bfd_boolean |
116c20d2 | 757 | ihex_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 | 887 | static bfd_boolean |
116c20d2 NC |
888 | ihex_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 | 902 | static int |
116c20d2 | 903 | ihex_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 | ||
946 | const 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 | }; |