Commit | Line | Data |
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252b5132 | 1 | /* BFD back-end for Intel Hex objects. |
b90efa5b | 2 | Copyright (C) 1995-2015 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by Ian Lance Taylor of Cygnus Support <ian@cygnus.com>. |
4 | ||
3d8dbe36 | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
3d8dbe36 NC |
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 | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
3d8dbe36 | 10 | (at your option) any later version. |
252b5132 | 11 | |
3d8dbe36 NC |
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. | |
252b5132 | 16 | |
3d8dbe36 NC |
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 | |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
21 | ||
252b5132 RH |
22 | |
23 | /* This is what Intel Hex files look like: | |
24 | ||
25 | 1. INTEL FORMATS | |
26 | ||
27 | A. 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 | ||
51 | B. 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 | ||
90 | Another 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 | ||
110 | The 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 | |
116c20d2 | 120 | 20..21 Carriage return, line feed. */ |
252b5132 | 121 | |
252b5132 | 122 | #include "sysdep.h" |
3db64b00 | 123 | #include "bfd.h" |
252b5132 RH |
124 | #include "libbfd.h" |
125 | #include "libiberty.h" | |
3882b010 | 126 | #include "safe-ctype.h" |
252b5132 | 127 | |
252b5132 RH |
128 | /* The number of bytes we put on one line during output. */ |
129 | ||
65d7f9a6 | 130 | #define CHUNK 16 |
252b5132 | 131 | |
3d8dbe36 | 132 | /* Macros for converting between hex and binary. */ |
252b5132 | 133 | |
3d8dbe36 | 134 | #define NIBBLE(x) (hex_value (x)) |
252b5132 RH |
135 | #define HEX2(buffer) ((NIBBLE ((buffer)[0]) << 4) + NIBBLE ((buffer)[1])) |
136 | #define HEX4(buffer) ((HEX2 (buffer) << 8) + HEX2 ((buffer) + 2)) | |
3d8dbe36 | 137 | #define ISHEX(x) (hex_p (x)) |
252b5132 RH |
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 | ||
142 | struct 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 | ||
152 | struct 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 | ||
160 | static void | |
116c20d2 | 161 | ihex_init (void) |
252b5132 | 162 | { |
b34976b6 | 163 | static bfd_boolean inited; |
252b5132 RH |
164 | |
165 | if (! inited) | |
166 | { | |
b34976b6 | 167 | inited = TRUE; |
252b5132 RH |
168 | hex_init (); |
169 | } | |
170 | } | |
171 | ||
172 | /* Create an ihex object. */ | |
173 | ||
b34976b6 | 174 | static bfd_boolean |
116c20d2 | 175 | ihex_mkobject (bfd *abfd) |
252b5132 | 176 | { |
487e54f2 | 177 | struct ihex_data_struct *tdata; |
252b5132 | 178 | |
a50b1753 | 179 | tdata = (struct ihex_data_struct *) bfd_alloc (abfd, sizeof (* tdata)); |
487e54f2 | 180 | if (tdata == NULL) |
b34976b6 | 181 | return FALSE; |
487e54f2 AM |
182 | |
183 | abfd->tdata.ihex_data = tdata; | |
184 | tdata->head = NULL; | |
185 | tdata->tail = NULL; | |
b34976b6 | 186 | return TRUE; |
252b5132 RH |
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 | ||
192 | static INLINE int | |
116c20d2 | 193 | ihex_get_byte (bfd *abfd, bfd_boolean *errorptr) |
252b5132 RH |
194 | { |
195 | bfd_byte c; | |
196 | ||
dc810e39 | 197 | if (bfd_bread (&c, (bfd_size_type) 1, abfd) != 1) |
252b5132 RH |
198 | { |
199 | if (bfd_get_error () != bfd_error_file_truncated) | |
b34976b6 | 200 | *errorptr = TRUE; |
252b5132 RH |
201 | return EOF; |
202 | } | |
203 | ||
204 | return (int) (c & 0xff); | |
205 | } | |
206 | ||
207 | /* Report a problem in an Intel Hex file. */ | |
208 | ||
209 | static void | |
116c20d2 | 210 | ihex_bad_byte (bfd *abfd, unsigned int lineno, int c, bfd_boolean error) |
252b5132 RH |
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 | ||
3882b010 | 221 | if (! ISPRINT (c)) |
252b5132 RH |
222 | sprintf (buf, "\\%03o", (unsigned int) c); |
223 | else | |
224 | { | |
225 | buf[0] = c; | |
226 | buf[1] = '\0'; | |
227 | } | |
228 | (*_bfd_error_handler) | |
d003868e AM |
229 | (_("%B:%d: unexpected character `%s' in Intel Hex file"), |
230 | abfd, lineno, buf); | |
252b5132 RH |
231 | bfd_set_error (bfd_error_bad_value); |
232 | } | |
233 | } | |
234 | ||
235 | /* Read an Intel hex file and turn it into sections. We create a new | |
236 | section for each contiguous set of bytes. */ | |
237 | ||
b34976b6 | 238 | static bfd_boolean |
116c20d2 | 239 | ihex_scan (bfd *abfd) |
252b5132 RH |
240 | { |
241 | bfd_vma segbase; | |
242 | bfd_vma extbase; | |
243 | asection *sec; | |
dc810e39 | 244 | unsigned int lineno; |
b34976b6 | 245 | bfd_boolean error; |
252b5132 RH |
246 | bfd_byte *buf = NULL; |
247 | size_t bufsize; | |
248 | int c; | |
249 | ||
250 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
251 | goto error_return; | |
252 | ||
253 | abfd->start_address = 0; | |
254 | ||
255 | segbase = 0; | |
256 | extbase = 0; | |
257 | sec = NULL; | |
258 | lineno = 1; | |
b34976b6 | 259 | error = FALSE; |
252b5132 | 260 | bufsize = 0; |
3d8dbe36 | 261 | |
252b5132 RH |
262 | while ((c = ihex_get_byte (abfd, &error)) != EOF) |
263 | { | |
264 | if (c == '\r') | |
265 | continue; | |
266 | else if (c == '\n') | |
267 | { | |
268 | ++lineno; | |
269 | continue; | |
270 | } | |
271 | else if (c != ':') | |
272 | { | |
273 | ihex_bad_byte (abfd, lineno, c, error); | |
274 | goto error_return; | |
275 | } | |
276 | else | |
277 | { | |
278 | file_ptr pos; | |
279 | char hdr[8]; | |
280 | unsigned int i; | |
281 | unsigned int len; | |
282 | bfd_vma addr; | |
283 | unsigned int type; | |
284 | unsigned int chars; | |
285 | unsigned int chksum; | |
286 | ||
287 | /* This is a data record. */ | |
252b5132 RH |
288 | pos = bfd_tell (abfd) - 1; |
289 | ||
290 | /* Read the header bytes. */ | |
dc810e39 | 291 | if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8) |
252b5132 RH |
292 | goto error_return; |
293 | ||
294 | for (i = 0; i < 8; i++) | |
295 | { | |
296 | if (! ISHEX (hdr[i])) | |
297 | { | |
298 | ihex_bad_byte (abfd, lineno, hdr[i], error); | |
299 | goto error_return; | |
300 | } | |
301 | } | |
302 | ||
303 | len = HEX2 (hdr); | |
304 | addr = HEX4 (hdr + 2); | |
305 | type = HEX2 (hdr + 6); | |
306 | ||
307 | /* Read the data bytes. */ | |
252b5132 RH |
308 | chars = len * 2 + 2; |
309 | if (chars >= bufsize) | |
310 | { | |
a50b1753 | 311 | buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) chars); |
252b5132 RH |
312 | if (buf == NULL) |
313 | goto error_return; | |
314 | bufsize = chars; | |
315 | } | |
316 | ||
dc810e39 | 317 | if (bfd_bread (buf, (bfd_size_type) chars, abfd) != chars) |
252b5132 RH |
318 | goto error_return; |
319 | ||
320 | for (i = 0; i < chars; i++) | |
321 | { | |
322 | if (! ISHEX (buf[i])) | |
323 | { | |
0102ea8c | 324 | ihex_bad_byte (abfd, lineno, buf[i], error); |
252b5132 RH |
325 | goto error_return; |
326 | } | |
327 | } | |
328 | ||
329 | /* Check the checksum. */ | |
330 | chksum = len + addr + (addr >> 8) + type; | |
331 | for (i = 0; i < len; i++) | |
332 | chksum += HEX2 (buf + 2 * i); | |
333 | if (((- chksum) & 0xff) != (unsigned int) HEX2 (buf + 2 * i)) | |
334 | { | |
335 | (*_bfd_error_handler) | |
d003868e AM |
336 | (_("%B:%u: bad checksum in Intel Hex file (expected %u, found %u)"), |
337 | abfd, lineno, | |
252b5132 RH |
338 | (- chksum) & 0xff, (unsigned int) HEX2 (buf + 2 * i)); |
339 | bfd_set_error (bfd_error_bad_value); | |
340 | goto error_return; | |
341 | } | |
342 | ||
343 | switch (type) | |
344 | { | |
345 | case 0: | |
346 | /* This is a data record. */ | |
347 | if (sec != NULL | |
eea6121a | 348 | && sec->vma + sec->size == extbase + segbase + addr) |
252b5132 RH |
349 | { |
350 | /* This data goes at the end of the section we are | |
351 | currently building. */ | |
eea6121a | 352 | sec->size += len; |
252b5132 RH |
353 | } |
354 | else if (len > 0) | |
355 | { | |
356 | char secbuf[20]; | |
357 | char *secname; | |
dc810e39 | 358 | bfd_size_type amt; |
117ed4f8 | 359 | flagword flags; |
252b5132 RH |
360 | |
361 | sprintf (secbuf, ".sec%d", bfd_count_sections (abfd) + 1); | |
dc810e39 | 362 | amt = strlen (secbuf) + 1; |
a50b1753 | 363 | secname = (char *) bfd_alloc (abfd, amt); |
252b5132 RH |
364 | if (secname == NULL) |
365 | goto error_return; | |
366 | strcpy (secname, secbuf); | |
117ed4f8 AM |
367 | flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC; |
368 | sec = bfd_make_section_with_flags (abfd, secname, flags); | |
252b5132 RH |
369 | if (sec == NULL) |
370 | goto error_return; | |
252b5132 RH |
371 | sec->vma = extbase + segbase + addr; |
372 | sec->lma = extbase + segbase + addr; | |
eea6121a | 373 | sec->size = len; |
252b5132 RH |
374 | sec->filepos = pos; |
375 | } | |
376 | break; | |
377 | ||
378 | case 1: | |
379 | /* An end record. */ | |
380 | if (abfd->start_address == 0) | |
381 | abfd->start_address = addr; | |
382 | if (buf != NULL) | |
383 | free (buf); | |
b34976b6 | 384 | return TRUE; |
252b5132 RH |
385 | |
386 | case 2: | |
387 | /* An extended address record. */ | |
388 | if (len != 2) | |
389 | { | |
390 | (*_bfd_error_handler) | |
d003868e AM |
391 | (_("%B:%u: bad extended address record length in Intel Hex file"), |
392 | abfd, lineno); | |
252b5132 RH |
393 | bfd_set_error (bfd_error_bad_value); |
394 | goto error_return; | |
395 | } | |
396 | ||
397 | segbase = HEX4 (buf) << 4; | |
398 | ||
399 | sec = NULL; | |
400 | ||
401 | break; | |
402 | ||
403 | case 3: | |
404 | /* An extended start address record. */ | |
405 | if (len != 4) | |
406 | { | |
407 | (*_bfd_error_handler) | |
d003868e AM |
408 | (_("%B:%u: bad extended start address length in Intel Hex file"), |
409 | abfd, lineno); | |
252b5132 RH |
410 | bfd_set_error (bfd_error_bad_value); |
411 | goto error_return; | |
412 | } | |
413 | ||
414 | abfd->start_address += (HEX4 (buf) << 4) + HEX4 (buf + 4); | |
415 | ||
416 | sec = NULL; | |
417 | ||
418 | break; | |
419 | ||
420 | case 4: | |
421 | /* An extended linear address record. */ | |
422 | if (len != 2) | |
423 | { | |
424 | (*_bfd_error_handler) | |
d003868e AM |
425 | (_("%B:%u: bad extended linear address record length in Intel Hex file"), |
426 | abfd, lineno); | |
252b5132 RH |
427 | bfd_set_error (bfd_error_bad_value); |
428 | goto error_return; | |
429 | } | |
430 | ||
431 | extbase = HEX4 (buf) << 16; | |
432 | ||
433 | sec = NULL; | |
434 | ||
435 | break; | |
436 | ||
437 | case 5: | |
438 | /* An extended linear start address record. */ | |
439 | if (len != 2 && len != 4) | |
440 | { | |
441 | (*_bfd_error_handler) | |
d003868e AM |
442 | (_("%B:%u: bad extended linear start address length in Intel Hex file"), |
443 | abfd, lineno); | |
252b5132 RH |
444 | bfd_set_error (bfd_error_bad_value); |
445 | goto error_return; | |
446 | } | |
447 | ||
448 | if (len == 2) | |
449 | abfd->start_address += HEX4 (buf) << 16; | |
450 | else | |
451 | abfd->start_address = (HEX4 (buf) << 16) + HEX4 (buf + 4); | |
452 | ||
453 | sec = NULL; | |
454 | ||
455 | break; | |
456 | ||
457 | default: | |
458 | (*_bfd_error_handler) | |
d003868e AM |
459 | (_("%B:%u: unrecognized ihex type %u in Intel Hex file"), |
460 | abfd, lineno, type); | |
252b5132 RH |
461 | bfd_set_error (bfd_error_bad_value); |
462 | goto error_return; | |
463 | } | |
464 | } | |
465 | } | |
466 | ||
467 | if (error) | |
468 | goto error_return; | |
469 | ||
470 | if (buf != NULL) | |
471 | free (buf); | |
472 | ||
b34976b6 | 473 | return TRUE; |
252b5132 RH |
474 | |
475 | error_return: | |
476 | if (buf != NULL) | |
477 | free (buf); | |
b34976b6 | 478 | return FALSE; |
252b5132 RH |
479 | } |
480 | ||
481 | /* Try to recognize an Intel Hex file. */ | |
482 | ||
483 | static const bfd_target * | |
116c20d2 | 484 | ihex_object_p (bfd *abfd) |
252b5132 | 485 | { |
116c20d2 | 486 | void * tdata_save; |
252b5132 RH |
487 | bfd_byte b[9]; |
488 | unsigned int i; | |
489 | unsigned int type; | |
490 | ||
491 | ihex_init (); | |
492 | ||
493 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
494 | return NULL; | |
dc810e39 | 495 | if (bfd_bread (b, (bfd_size_type) 9, abfd) != 9) |
252b5132 RH |
496 | { |
497 | if (bfd_get_error () == bfd_error_file_truncated) | |
498 | bfd_set_error (bfd_error_wrong_format); | |
499 | return NULL; | |
500 | } | |
501 | ||
502 | if (b[0] != ':') | |
503 | { | |
504 | bfd_set_error (bfd_error_wrong_format); | |
505 | return NULL; | |
506 | } | |
507 | ||
508 | for (i = 1; i < 9; i++) | |
509 | { | |
510 | if (! ISHEX (b[i])) | |
511 | { | |
512 | bfd_set_error (bfd_error_wrong_format); | |
513 | return NULL; | |
514 | } | |
515 | } | |
516 | ||
517 | type = HEX2 (b + 7); | |
518 | if (type > 5) | |
519 | { | |
520 | bfd_set_error (bfd_error_wrong_format); | |
521 | return NULL; | |
522 | } | |
523 | ||
524 | /* OK, it looks like it really is an Intel Hex file. */ | |
487e54f2 AM |
525 | tdata_save = abfd->tdata.any; |
526 | if (! ihex_mkobject (abfd) || ! ihex_scan (abfd)) | |
527 | { | |
528 | if (abfd->tdata.any != tdata_save && abfd->tdata.any != NULL) | |
529 | bfd_release (abfd, abfd->tdata.any); | |
530 | abfd->tdata.any = tdata_save; | |
531 | return NULL; | |
532 | } | |
252b5132 RH |
533 | |
534 | return abfd->xvec; | |
535 | } | |
536 | ||
537 | /* Read the contents of a section in an Intel Hex file. */ | |
538 | ||
b34976b6 | 539 | static bfd_boolean |
116c20d2 | 540 | ihex_read_section (bfd *abfd, asection *section, bfd_byte *contents) |
252b5132 RH |
541 | { |
542 | int c; | |
543 | bfd_byte *p; | |
544 | bfd_byte *buf = NULL; | |
545 | size_t bufsize; | |
b34976b6 | 546 | bfd_boolean error; |
252b5132 RH |
547 | |
548 | if (bfd_seek (abfd, section->filepos, SEEK_SET) != 0) | |
549 | goto error_return; | |
550 | ||
551 | p = contents; | |
552 | bufsize = 0; | |
b34976b6 | 553 | error = FALSE; |
252b5132 RH |
554 | while ((c = ihex_get_byte (abfd, &error)) != EOF) |
555 | { | |
556 | char hdr[8]; | |
557 | unsigned int len; | |
252b5132 RH |
558 | unsigned int type; |
559 | unsigned int i; | |
560 | ||
561 | if (c == '\r' || c == '\n') | |
562 | continue; | |
563 | ||
564 | /* This is called after ihex_scan has succeeded, so we ought to | |
565 | know the exact format. */ | |
566 | BFD_ASSERT (c == ':'); | |
567 | ||
dc810e39 | 568 | if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8) |
252b5132 RH |
569 | goto error_return; |
570 | ||
571 | len = HEX2 (hdr); | |
252b5132 RH |
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 | { | |
a50b1753 | 585 | buf = (bfd_byte *) 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; |
a50b1753 NC |
642 | if (! ihex_read_section (abfd, section, |
643 | (bfd_byte *) section->used_by_bfd)) | |
b34976b6 | 644 | return FALSE; |
252b5132 RH |
645 | } |
646 | ||
647 | memcpy (location, (bfd_byte *) section->used_by_bfd + offset, | |
648 | (size_t) count); | |
649 | ||
b34976b6 | 650 | return TRUE; |
252b5132 RH |
651 | } |
652 | ||
653 | /* Set the contents of a section in an Intel Hex file. */ | |
654 | ||
b34976b6 | 655 | static bfd_boolean |
116c20d2 NC |
656 | ihex_set_section_contents (bfd *abfd, |
657 | asection *section, | |
658 | const void * location, | |
659 | file_ptr offset, | |
660 | bfd_size_type count) | |
252b5132 RH |
661 | { |
662 | struct ihex_data_list *n; | |
663 | bfd_byte *data; | |
664 | struct ihex_data_struct *tdata; | |
665 | ||
666 | if (count == 0 | |
667 | || (section->flags & SEC_ALLOC) == 0 | |
668 | || (section->flags & SEC_LOAD) == 0) | |
b34976b6 | 669 | return TRUE; |
252b5132 | 670 | |
a50b1753 | 671 | n = (struct ihex_data_list *) bfd_alloc (abfd, sizeof (* n)); |
252b5132 | 672 | if (n == NULL) |
b34976b6 | 673 | return FALSE; |
252b5132 | 674 | |
a50b1753 | 675 | data = (bfd_byte *) bfd_alloc (abfd, count); |
252b5132 | 676 | if (data == NULL) |
b34976b6 | 677 | return FALSE; |
252b5132 RH |
678 | memcpy (data, location, (size_t) count); |
679 | ||
680 | n->data = data; | |
681 | n->where = section->lma + offset; | |
682 | n->size = count; | |
683 | ||
684 | /* Sort the records by address. Optimize for the common case of | |
685 | adding a record to the end of the list. */ | |
686 | tdata = abfd->tdata.ihex_data; | |
687 | if (tdata->tail != NULL | |
688 | && n->where >= tdata->tail->where) | |
689 | { | |
690 | tdata->tail->next = n; | |
691 | n->next = NULL; | |
692 | tdata->tail = n; | |
693 | } | |
694 | else | |
695 | { | |
116c20d2 | 696 | struct ihex_data_list **pp; |
252b5132 RH |
697 | |
698 | for (pp = &tdata->head; | |
699 | *pp != NULL && (*pp)->where < n->where; | |
700 | pp = &(*pp)->next) | |
701 | ; | |
702 | n->next = *pp; | |
703 | *pp = n; | |
704 | if (n->next == NULL) | |
705 | tdata->tail = n; | |
706 | } | |
707 | ||
b34976b6 | 708 | return TRUE; |
252b5132 RH |
709 | } |
710 | ||
711 | /* Write a record out to an Intel Hex file. */ | |
712 | ||
b34976b6 | 713 | static bfd_boolean |
116c20d2 NC |
714 | ihex_write_record (bfd *abfd, |
715 | size_t count, | |
716 | unsigned int addr, | |
717 | unsigned int type, | |
718 | bfd_byte *data) | |
252b5132 RH |
719 | { |
720 | static const char digs[] = "0123456789ABCDEF"; | |
721 | char buf[9 + CHUNK * 2 + 4]; | |
722 | char *p; | |
723 | unsigned int chksum; | |
724 | unsigned int i; | |
dc810e39 | 725 | size_t total; |
252b5132 RH |
726 | |
727 | #define TOHEX(buf, v) \ | |
728 | ((buf)[0] = digs[((v) >> 4) & 0xf], (buf)[1] = digs[(v) & 0xf]) | |
729 | ||
730 | buf[0] = ':'; | |
731 | TOHEX (buf + 1, count); | |
732 | TOHEX (buf + 3, (addr >> 8) & 0xff); | |
733 | TOHEX (buf + 5, addr & 0xff); | |
734 | TOHEX (buf + 7, type); | |
735 | ||
736 | chksum = count + addr + (addr >> 8) + type; | |
737 | ||
738 | for (i = 0, p = buf + 9; i < count; i++, p += 2, data++) | |
739 | { | |
740 | TOHEX (p, *data); | |
741 | chksum += *data; | |
742 | } | |
743 | ||
744 | TOHEX (p, (- chksum) & 0xff); | |
745 | p[2] = '\r'; | |
746 | p[3] = '\n'; | |
747 | ||
dc810e39 AM |
748 | total = 9 + count * 2 + 4; |
749 | if (bfd_bwrite (buf, (bfd_size_type) total, abfd) != total) | |
b34976b6 | 750 | return FALSE; |
252b5132 | 751 | |
b34976b6 | 752 | return TRUE; |
252b5132 RH |
753 | } |
754 | ||
755 | /* Write out an Intel Hex file. */ | |
756 | ||
b34976b6 | 757 | static bfd_boolean |
116c20d2 | 758 | ihex_write_object_contents (bfd *abfd) |
252b5132 RH |
759 | { |
760 | bfd_vma segbase; | |
761 | bfd_vma extbase; | |
762 | struct ihex_data_list *l; | |
763 | ||
764 | segbase = 0; | |
765 | extbase = 0; | |
766 | for (l = abfd->tdata.ihex_data->head; l != NULL; l = l->next) | |
767 | { | |
768 | bfd_vma where; | |
769 | bfd_byte *p; | |
770 | bfd_size_type count; | |
771 | ||
772 | where = l->where; | |
773 | p = l->data; | |
774 | count = l->size; | |
116c20d2 | 775 | |
252b5132 RH |
776 | while (count > 0) |
777 | { | |
dc810e39 AM |
778 | size_t now; |
779 | unsigned int rec_addr; | |
252b5132 RH |
780 | |
781 | now = count; | |
dc810e39 | 782 | if (count > CHUNK) |
252b5132 RH |
783 | now = CHUNK; |
784 | ||
785 | if (where > segbase + extbase + 0xffff) | |
786 | { | |
787 | bfd_byte addr[2]; | |
788 | ||
789 | /* We need a new base address. */ | |
790 | if (where <= 0xfffff) | |
791 | { | |
792 | /* The addresses should be sorted. */ | |
793 | BFD_ASSERT (extbase == 0); | |
794 | ||
795 | segbase = where & 0xf0000; | |
796 | addr[0] = (bfd_byte)(segbase >> 12) & 0xff; | |
797 | addr[1] = (bfd_byte)(segbase >> 4) & 0xff; | |
798 | if (! ihex_write_record (abfd, 2, 0, 2, addr)) | |
b34976b6 | 799 | return FALSE; |
252b5132 RH |
800 | } |
801 | else | |
802 | { | |
803 | /* The extended address record and the extended | |
804 | linear address record are combined, at least by | |
805 | some readers. We need an extended linear address | |
806 | record here, so if we've already written out an | |
807 | extended address record, zero it out to avoid | |
808 | confusion. */ | |
809 | if (segbase != 0) | |
810 | { | |
811 | addr[0] = 0; | |
812 | addr[1] = 0; | |
813 | if (! ihex_write_record (abfd, 2, 0, 2, addr)) | |
b34976b6 | 814 | return FALSE; |
252b5132 RH |
815 | segbase = 0; |
816 | } | |
817 | ||
818 | extbase = where & 0xffff0000; | |
819 | if (where > extbase + 0xffff) | |
820 | { | |
821 | char buf[20]; | |
822 | ||
823 | sprintf_vma (buf, where); | |
824 | (*_bfd_error_handler) | |
ca09e32b | 825 | (_("%s: address 0x%s out of range for Intel Hex file"), |
252b5132 RH |
826 | bfd_get_filename (abfd), buf); |
827 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 828 | return FALSE; |
252b5132 RH |
829 | } |
830 | addr[0] = (bfd_byte)(extbase >> 24) & 0xff; | |
831 | addr[1] = (bfd_byte)(extbase >> 16) & 0xff; | |
832 | if (! ihex_write_record (abfd, 2, 0, 4, addr)) | |
b34976b6 | 833 | return FALSE; |
252b5132 RH |
834 | } |
835 | } | |
836 | ||
dc810e39 | 837 | rec_addr = where - (extbase + segbase); |
9e81ee67 NC |
838 | |
839 | /* Output records shouldn't cross 64K boundaries. */ | |
3d8dbe36 NC |
840 | if (rec_addr + now > 0xffff) |
841 | now = 0x10000 - rec_addr; | |
9e81ee67 | 842 | |
dc810e39 | 843 | if (! ihex_write_record (abfd, now, rec_addr, 0, p)) |
b34976b6 | 844 | return FALSE; |
252b5132 RH |
845 | |
846 | where += now; | |
847 | p += now; | |
848 | count -= now; | |
849 | } | |
850 | } | |
851 | ||
852 | if (abfd->start_address != 0) | |
853 | { | |
854 | bfd_vma start; | |
855 | bfd_byte startbuf[4]; | |
856 | ||
857 | start = abfd->start_address; | |
858 | ||
859 | if (start <= 0xfffff) | |
860 | { | |
861 | startbuf[0] = (bfd_byte)((start & 0xf0000) >> 12) & 0xff; | |
862 | startbuf[1] = 0; | |
863 | startbuf[2] = (bfd_byte)(start >> 8) & 0xff; | |
864 | startbuf[3] = (bfd_byte)start & 0xff; | |
865 | if (! ihex_write_record (abfd, 4, 0, 3, startbuf)) | |
b34976b6 | 866 | return FALSE; |
252b5132 RH |
867 | } |
868 | else | |
869 | { | |
870 | startbuf[0] = (bfd_byte)(start >> 24) & 0xff; | |
871 | startbuf[1] = (bfd_byte)(start >> 16) & 0xff; | |
872 | startbuf[2] = (bfd_byte)(start >> 8) & 0xff; | |
873 | startbuf[3] = (bfd_byte)start & 0xff; | |
874 | if (! ihex_write_record (abfd, 4, 0, 5, startbuf)) | |
b34976b6 | 875 | return FALSE; |
252b5132 RH |
876 | } |
877 | } | |
878 | ||
879 | if (! ihex_write_record (abfd, 0, 0, 1, NULL)) | |
b34976b6 | 880 | return FALSE; |
252b5132 | 881 | |
b34976b6 | 882 | return TRUE; |
252b5132 RH |
883 | } |
884 | ||
252b5132 RH |
885 | /* Set the architecture for the output file. The architecture is |
886 | irrelevant, so we ignore errors about unknown architectures. */ | |
887 | ||
b34976b6 | 888 | static bfd_boolean |
116c20d2 NC |
889 | ihex_set_arch_mach (bfd *abfd, |
890 | enum bfd_architecture arch, | |
891 | unsigned long mach) | |
252b5132 RH |
892 | { |
893 | if (! bfd_default_set_arch_mach (abfd, arch, mach)) | |
894 | { | |
895 | if (arch != bfd_arch_unknown) | |
b34976b6 | 896 | return FALSE; |
252b5132 | 897 | } |
b34976b6 | 898 | return TRUE; |
252b5132 RH |
899 | } |
900 | ||
901 | /* Get the size of the headers, for the linker. */ | |
902 | ||
252b5132 | 903 | static int |
a6b96beb AM |
904 | ihex_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED, |
905 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
252b5132 RH |
906 | { |
907 | return 0; | |
908 | } | |
909 | ||
910 | /* Some random definitions for the target vector. */ | |
911 | ||
116c20d2 NC |
912 | #define ihex_close_and_cleanup _bfd_generic_close_and_cleanup |
913 | #define ihex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
914 | #define ihex_new_section_hook _bfd_generic_new_section_hook | |
915 | #define ihex_get_section_contents_in_window _bfd_generic_get_section_contents_in_window | |
916 | #define ihex_get_symtab_upper_bound bfd_0l | |
917 | #define ihex_canonicalize_symtab ((long (*) (bfd *, asymbol **)) bfd_0l) | |
918 | #define ihex_make_empty_symbol _bfd_generic_make_empty_symbol | |
919 | #define ihex_print_symbol _bfd_nosymbols_print_symbol | |
920 | #define ihex_get_symbol_info _bfd_nosymbols_get_symbol_info | |
60bb06bc | 921 | #define ihex_get_symbol_version_string _bfd_nosymbols_get_symbol_version_string |
116c20d2 NC |
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 | |
9c461f7d | 926 | #define ihex_find_line _bfd_nosymbols_find_line |
4ab527b0 | 927 | #define ihex_find_inliner_info _bfd_nosymbols_find_inliner_info |
116c20d2 NC |
928 | #define ihex_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol |
929 | #define ihex_read_minisymbols _bfd_nosymbols_read_minisymbols | |
930 | #define ihex_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol | |
116c20d2 NC |
931 | #define ihex_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents |
932 | #define ihex_bfd_relax_section bfd_generic_relax_section | |
933 | #define ihex_bfd_gc_sections bfd_generic_gc_sections | |
ae17ab41 | 934 | #define ihex_bfd_lookup_section_flags bfd_generic_lookup_section_flags |
116c20d2 NC |
935 | #define ihex_bfd_merge_sections bfd_generic_merge_sections |
936 | #define ihex_bfd_is_group_section bfd_generic_is_group_section | |
937 | #define ihex_bfd_discard_group bfd_generic_discard_group | |
938 | #define ihex_section_already_linked _bfd_generic_section_already_linked | |
3023e3f6 | 939 | #define ihex_bfd_define_common_symbol bfd_generic_define_common_symbol |
116c20d2 | 940 | #define ihex_bfd_link_hash_table_create _bfd_generic_link_hash_table_create |
116c20d2 NC |
941 | #define ihex_bfd_link_add_symbols _bfd_generic_link_add_symbols |
942 | #define ihex_bfd_link_just_syms _bfd_generic_link_just_syms | |
1338dd10 PB |
943 | #define ihex_bfd_copy_link_hash_symbol_type \ |
944 | _bfd_generic_copy_link_hash_symbol_type | |
116c20d2 NC |
945 | #define ihex_bfd_final_link _bfd_generic_final_link |
946 | #define ihex_bfd_link_split_section _bfd_generic_link_split_section | |
252b5132 RH |
947 | |
948 | /* The Intel Hex target vector. */ | |
949 | ||
950 | const bfd_target ihex_vec = | |
951 | { | |
116c20d2 | 952 | "ihex", /* Name. */ |
252b5132 | 953 | bfd_target_ihex_flavour, |
116c20d2 NC |
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. */ | |
0aabe54e | 961 | 0, /* match priority. */ |
252b5132 RH |
962 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
963 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
116c20d2 | 964 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */ |
252b5132 RH |
965 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
966 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
116c20d2 | 967 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */ |
252b5132 RH |
968 | |
969 | { | |
970 | _bfd_dummy_target, | |
116c20d2 | 971 | ihex_object_p, /* bfd_check_format. */ |
252b5132 RH |
972 | _bfd_dummy_target, |
973 | _bfd_dummy_target, | |
974 | }, | |
975 | { | |
976 | bfd_false, | |
977 | ihex_mkobject, | |
978 | _bfd_generic_mkarchive, | |
979 | bfd_false, | |
980 | }, | |
116c20d2 | 981 | { /* bfd_write_contents. */ |
252b5132 RH |
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), | |
72f6ea61 | 993 | BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), |
252b5132 RH |
994 | BFD_JUMP_TABLE_WRITE (ihex), |
995 | BFD_JUMP_TABLE_LINK (ihex), | |
996 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
997 | ||
c3c89269 | 998 | NULL, |
dc810e39 | 999 | |
116c20d2 | 1000 | NULL |
252b5132 | 1001 | }; |