Commit | Line | Data |
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252b5132 | 1 | /* BFD back-end for Intel Hex objects. |
250d07de | 2 | Copyright (C) 1995-2021 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 | { |
0a1b45a2 | 163 | static bool inited; |
252b5132 RH |
164 | |
165 | if (! inited) | |
166 | { | |
0a1b45a2 | 167 | inited = true; |
252b5132 RH |
168 | hex_init (); |
169 | } | |
170 | } | |
171 | ||
172 | /* Create an ihex object. */ | |
173 | ||
0a1b45a2 | 174 | static bool |
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) |
0a1b45a2 | 181 | return false; |
487e54f2 AM |
182 | |
183 | abfd->tdata.ihex_data = tdata; | |
184 | tdata->head = NULL; | |
185 | tdata->tail = NULL; | |
0a1b45a2 | 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 | |
0a1b45a2 | 193 | ihex_get_byte (bfd *abfd, bool *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) | |
0a1b45a2 | 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 | |
0a1b45a2 | 210 | ihex_bad_byte (bfd *abfd, unsigned int lineno, int c, bool 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)) |
7e27a9d5 | 222 | sprintf (buf, "\\%03o", (unsigned int) c & 0xff); |
252b5132 RH |
223 | else |
224 | { | |
225 | buf[0] = c; | |
226 | buf[1] = '\0'; | |
227 | } | |
4eca0228 | 228 | _bfd_error_handler |
695344c0 | 229 | /* xgettext:c-format */ |
871b3ab2 | 230 | (_("%pB:%d: unexpected character `%s' in Intel Hex file"), |
d003868e | 231 | abfd, lineno, buf); |
252b5132 RH |
232 | bfd_set_error (bfd_error_bad_value); |
233 | } | |
234 | } | |
235 | ||
236 | /* Read an Intel hex file and turn it into sections. We create a new | |
237 | section for each contiguous set of bytes. */ | |
238 | ||
0a1b45a2 | 239 | static bool |
116c20d2 | 240 | ihex_scan (bfd *abfd) |
252b5132 RH |
241 | { |
242 | bfd_vma segbase; | |
243 | bfd_vma extbase; | |
244 | asection *sec; | |
dc810e39 | 245 | unsigned int lineno; |
0a1b45a2 | 246 | bool error; |
252b5132 RH |
247 | bfd_byte *buf = NULL; |
248 | size_t bufsize; | |
249 | int c; | |
250 | ||
251 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
252 | goto error_return; | |
253 | ||
254 | abfd->start_address = 0; | |
255 | ||
256 | segbase = 0; | |
257 | extbase = 0; | |
258 | sec = NULL; | |
259 | lineno = 1; | |
0a1b45a2 | 260 | error = false; |
252b5132 | 261 | bufsize = 0; |
3d8dbe36 | 262 | |
252b5132 RH |
263 | while ((c = ihex_get_byte (abfd, &error)) != EOF) |
264 | { | |
265 | if (c == '\r') | |
266 | continue; | |
267 | else if (c == '\n') | |
268 | { | |
269 | ++lineno; | |
270 | continue; | |
271 | } | |
272 | else if (c != ':') | |
273 | { | |
274 | ihex_bad_byte (abfd, lineno, c, error); | |
275 | goto error_return; | |
276 | } | |
277 | else | |
278 | { | |
279 | file_ptr pos; | |
7e27a9d5 | 280 | unsigned char hdr[8]; |
252b5132 RH |
281 | unsigned int i; |
282 | unsigned int len; | |
283 | bfd_vma addr; | |
284 | unsigned int type; | |
285 | unsigned int chars; | |
286 | unsigned int chksum; | |
287 | ||
288 | /* This is a data record. */ | |
252b5132 RH |
289 | pos = bfd_tell (abfd) - 1; |
290 | ||
291 | /* Read the header bytes. */ | |
dc810e39 | 292 | if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8) |
252b5132 RH |
293 | goto error_return; |
294 | ||
295 | for (i = 0; i < 8; i++) | |
296 | { | |
297 | if (! ISHEX (hdr[i])) | |
298 | { | |
299 | ihex_bad_byte (abfd, lineno, hdr[i], error); | |
300 | goto error_return; | |
301 | } | |
302 | } | |
303 | ||
304 | len = HEX2 (hdr); | |
305 | addr = HEX4 (hdr + 2); | |
306 | type = HEX2 (hdr + 6); | |
307 | ||
308 | /* Read the data bytes. */ | |
252b5132 RH |
309 | chars = len * 2 + 2; |
310 | if (chars >= bufsize) | |
311 | { | |
a50b1753 | 312 | buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) chars); |
252b5132 RH |
313 | if (buf == NULL) |
314 | goto error_return; | |
315 | bufsize = chars; | |
316 | } | |
317 | ||
dc810e39 | 318 | if (bfd_bread (buf, (bfd_size_type) chars, abfd) != chars) |
252b5132 RH |
319 | goto error_return; |
320 | ||
321 | for (i = 0; i < chars; i++) | |
322 | { | |
323 | if (! ISHEX (buf[i])) | |
324 | { | |
0102ea8c | 325 | ihex_bad_byte (abfd, lineno, buf[i], error); |
252b5132 RH |
326 | goto error_return; |
327 | } | |
328 | } | |
329 | ||
330 | /* Check the checksum. */ | |
331 | chksum = len + addr + (addr >> 8) + type; | |
332 | for (i = 0; i < len; i++) | |
333 | chksum += HEX2 (buf + 2 * i); | |
334 | if (((- chksum) & 0xff) != (unsigned int) HEX2 (buf + 2 * i)) | |
335 | { | |
4eca0228 | 336 | _bfd_error_handler |
695344c0 | 337 | /* xgettext:c-format */ |
871b3ab2 | 338 | (_("%pB:%u: bad checksum in Intel Hex file (expected %u, found %u)"), |
d003868e | 339 | abfd, lineno, |
252b5132 RH |
340 | (- chksum) & 0xff, (unsigned int) HEX2 (buf + 2 * i)); |
341 | bfd_set_error (bfd_error_bad_value); | |
342 | goto error_return; | |
343 | } | |
344 | ||
345 | switch (type) | |
346 | { | |
347 | case 0: | |
348 | /* This is a data record. */ | |
349 | if (sec != NULL | |
eea6121a | 350 | && sec->vma + sec->size == extbase + segbase + addr) |
252b5132 RH |
351 | { |
352 | /* This data goes at the end of the section we are | |
07d6d2b8 | 353 | currently building. */ |
eea6121a | 354 | sec->size += len; |
252b5132 RH |
355 | } |
356 | else if (len > 0) | |
357 | { | |
358 | char secbuf[20]; | |
359 | char *secname; | |
986f0783 | 360 | size_t amt; |
117ed4f8 | 361 | flagword flags; |
252b5132 RH |
362 | |
363 | sprintf (secbuf, ".sec%d", bfd_count_sections (abfd) + 1); | |
dc810e39 | 364 | amt = strlen (secbuf) + 1; |
a50b1753 | 365 | secname = (char *) bfd_alloc (abfd, amt); |
252b5132 RH |
366 | if (secname == NULL) |
367 | goto error_return; | |
368 | strcpy (secname, secbuf); | |
117ed4f8 AM |
369 | flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC; |
370 | sec = bfd_make_section_with_flags (abfd, secname, flags); | |
252b5132 RH |
371 | if (sec == NULL) |
372 | goto error_return; | |
252b5132 RH |
373 | sec->vma = extbase + segbase + addr; |
374 | sec->lma = extbase + segbase + addr; | |
eea6121a | 375 | sec->size = len; |
252b5132 RH |
376 | sec->filepos = pos; |
377 | } | |
378 | break; | |
379 | ||
380 | case 1: | |
381 | /* An end record. */ | |
382 | if (abfd->start_address == 0) | |
383 | abfd->start_address = addr; | |
c9594989 | 384 | free (buf); |
0a1b45a2 | 385 | return true; |
252b5132 RH |
386 | |
387 | case 2: | |
388 | /* An extended address record. */ | |
389 | if (len != 2) | |
390 | { | |
4eca0228 | 391 | _bfd_error_handler |
695344c0 | 392 | /* xgettext:c-format */ |
871b3ab2 | 393 | (_("%pB:%u: bad extended address record length in Intel Hex file"), |
d003868e | 394 | abfd, lineno); |
252b5132 RH |
395 | bfd_set_error (bfd_error_bad_value); |
396 | goto error_return; | |
397 | } | |
398 | ||
399 | segbase = HEX4 (buf) << 4; | |
400 | ||
401 | sec = NULL; | |
402 | ||
403 | break; | |
404 | ||
405 | case 3: | |
406 | /* An extended start address record. */ | |
407 | if (len != 4) | |
408 | { | |
4eca0228 | 409 | _bfd_error_handler |
695344c0 | 410 | /* xgettext:c-format */ |
871b3ab2 | 411 | (_("%pB:%u: bad extended start address length in Intel Hex file"), |
d003868e | 412 | abfd, lineno); |
252b5132 RH |
413 | bfd_set_error (bfd_error_bad_value); |
414 | goto error_return; | |
415 | } | |
416 | ||
417 | abfd->start_address += (HEX4 (buf) << 4) + HEX4 (buf + 4); | |
418 | ||
419 | sec = NULL; | |
420 | ||
421 | break; | |
422 | ||
423 | case 4: | |
424 | /* An extended linear address record. */ | |
425 | if (len != 2) | |
426 | { | |
4eca0228 | 427 | _bfd_error_handler |
695344c0 | 428 | /* xgettext:c-format */ |
871b3ab2 | 429 | (_("%pB:%u: bad extended linear address record length in Intel Hex file"), |
d003868e | 430 | abfd, lineno); |
252b5132 RH |
431 | bfd_set_error (bfd_error_bad_value); |
432 | goto error_return; | |
433 | } | |
434 | ||
435 | extbase = HEX4 (buf) << 16; | |
436 | ||
437 | sec = NULL; | |
438 | ||
439 | break; | |
440 | ||
441 | case 5: | |
442 | /* An extended linear start address record. */ | |
443 | if (len != 2 && len != 4) | |
444 | { | |
4eca0228 | 445 | _bfd_error_handler |
695344c0 | 446 | /* xgettext:c-format */ |
871b3ab2 | 447 | (_("%pB:%u: bad extended linear start address length in Intel Hex file"), |
d003868e | 448 | abfd, lineno); |
252b5132 RH |
449 | bfd_set_error (bfd_error_bad_value); |
450 | goto error_return; | |
451 | } | |
452 | ||
453 | if (len == 2) | |
454 | abfd->start_address += HEX4 (buf) << 16; | |
455 | else | |
456 | abfd->start_address = (HEX4 (buf) << 16) + HEX4 (buf + 4); | |
457 | ||
458 | sec = NULL; | |
459 | ||
460 | break; | |
461 | ||
462 | default: | |
4eca0228 | 463 | _bfd_error_handler |
695344c0 | 464 | /* xgettext:c-format */ |
871b3ab2 | 465 | (_("%pB:%u: unrecognized ihex type %u in Intel Hex file"), |
d003868e | 466 | abfd, lineno, type); |
252b5132 RH |
467 | bfd_set_error (bfd_error_bad_value); |
468 | goto error_return; | |
469 | } | |
470 | } | |
471 | } | |
472 | ||
473 | if (error) | |
474 | goto error_return; | |
475 | ||
c9594989 | 476 | free (buf); |
0a1b45a2 | 477 | return true; |
252b5132 RH |
478 | |
479 | error_return: | |
c9594989 | 480 | free (buf); |
0a1b45a2 | 481 | return false; |
252b5132 RH |
482 | } |
483 | ||
484 | /* Try to recognize an Intel Hex file. */ | |
485 | ||
cb001c0d | 486 | static bfd_cleanup |
116c20d2 | 487 | ihex_object_p (bfd *abfd) |
252b5132 | 488 | { |
116c20d2 | 489 | void * tdata_save; |
252b5132 RH |
490 | bfd_byte b[9]; |
491 | unsigned int i; | |
492 | unsigned int type; | |
493 | ||
494 | ihex_init (); | |
495 | ||
496 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
497 | return NULL; | |
dc810e39 | 498 | if (bfd_bread (b, (bfd_size_type) 9, abfd) != 9) |
252b5132 RH |
499 | { |
500 | if (bfd_get_error () == bfd_error_file_truncated) | |
501 | bfd_set_error (bfd_error_wrong_format); | |
502 | return NULL; | |
503 | } | |
504 | ||
505 | if (b[0] != ':') | |
506 | { | |
507 | bfd_set_error (bfd_error_wrong_format); | |
508 | return NULL; | |
509 | } | |
510 | ||
511 | for (i = 1; i < 9; i++) | |
512 | { | |
513 | if (! ISHEX (b[i])) | |
514 | { | |
515 | bfd_set_error (bfd_error_wrong_format); | |
516 | return NULL; | |
517 | } | |
518 | } | |
519 | ||
520 | type = HEX2 (b + 7); | |
521 | if (type > 5) | |
522 | { | |
523 | bfd_set_error (bfd_error_wrong_format); | |
524 | return NULL; | |
525 | } | |
526 | ||
527 | /* OK, it looks like it really is an Intel Hex file. */ | |
487e54f2 AM |
528 | tdata_save = abfd->tdata.any; |
529 | if (! ihex_mkobject (abfd) || ! ihex_scan (abfd)) | |
530 | { | |
531 | if (abfd->tdata.any != tdata_save && abfd->tdata.any != NULL) | |
532 | bfd_release (abfd, abfd->tdata.any); | |
533 | abfd->tdata.any = tdata_save; | |
534 | return NULL; | |
535 | } | |
252b5132 | 536 | |
cb001c0d | 537 | return _bfd_no_cleanup; |
252b5132 RH |
538 | } |
539 | ||
540 | /* Read the contents of a section in an Intel Hex file. */ | |
541 | ||
0a1b45a2 | 542 | static bool |
116c20d2 | 543 | ihex_read_section (bfd *abfd, asection *section, bfd_byte *contents) |
252b5132 RH |
544 | { |
545 | int c; | |
546 | bfd_byte *p; | |
547 | bfd_byte *buf = NULL; | |
548 | size_t bufsize; | |
0a1b45a2 | 549 | bool error; |
252b5132 RH |
550 | |
551 | if (bfd_seek (abfd, section->filepos, SEEK_SET) != 0) | |
552 | goto error_return; | |
553 | ||
554 | p = contents; | |
555 | bufsize = 0; | |
0a1b45a2 | 556 | error = false; |
252b5132 RH |
557 | while ((c = ihex_get_byte (abfd, &error)) != EOF) |
558 | { | |
7e27a9d5 | 559 | unsigned char hdr[8]; |
252b5132 | 560 | unsigned int len; |
252b5132 RH |
561 | unsigned int type; |
562 | unsigned int i; | |
563 | ||
564 | if (c == '\r' || c == '\n') | |
565 | continue; | |
566 | ||
567 | /* This is called after ihex_scan has succeeded, so we ought to | |
07d6d2b8 | 568 | know the exact format. */ |
252b5132 RH |
569 | BFD_ASSERT (c == ':'); |
570 | ||
dc810e39 | 571 | if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8) |
252b5132 RH |
572 | goto error_return; |
573 | ||
574 | len = HEX2 (hdr); | |
252b5132 RH |
575 | type = HEX2 (hdr + 6); |
576 | ||
577 | /* We should only see type 0 records here. */ | |
578 | if (type != 0) | |
579 | { | |
4eca0228 | 580 | _bfd_error_handler |
871b3ab2 | 581 | (_("%pB: internal error in ihex_read_section"), abfd); |
252b5132 RH |
582 | bfd_set_error (bfd_error_bad_value); |
583 | goto error_return; | |
584 | } | |
585 | ||
586 | if (len * 2 > bufsize) | |
587 | { | |
a50b1753 | 588 | buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) len * 2); |
252b5132 RH |
589 | if (buf == NULL) |
590 | goto error_return; | |
591 | bufsize = len * 2; | |
592 | } | |
593 | ||
dc810e39 | 594 | if (bfd_bread (buf, (bfd_size_type) len * 2, abfd) != len * 2) |
252b5132 RH |
595 | goto error_return; |
596 | ||
597 | for (i = 0; i < len; i++) | |
598 | *p++ = HEX2 (buf + 2 * i); | |
eea6121a | 599 | if ((bfd_size_type) (p - contents) >= section->size) |
252b5132 RH |
600 | { |
601 | /* We've read everything in the section. */ | |
c9594989 | 602 | free (buf); |
0a1b45a2 | 603 | return true; |
252b5132 RH |
604 | } |
605 | ||
606 | /* Skip the checksum. */ | |
dc810e39 | 607 | if (bfd_bread (buf, (bfd_size_type) 2, abfd) != 2) |
252b5132 RH |
608 | goto error_return; |
609 | } | |
610 | ||
eea6121a | 611 | if ((bfd_size_type) (p - contents) < section->size) |
252b5132 | 612 | { |
4eca0228 | 613 | _bfd_error_handler |
871b3ab2 | 614 | (_("%pB: bad section length in ihex_read_section"), abfd); |
252b5132 RH |
615 | bfd_set_error (bfd_error_bad_value); |
616 | goto error_return; | |
617 | } | |
618 | ||
c9594989 | 619 | free (buf); |
0a1b45a2 | 620 | return true; |
252b5132 RH |
621 | |
622 | error_return: | |
c9594989 | 623 | free (buf); |
0a1b45a2 | 624 | return false; |
252b5132 RH |
625 | } |
626 | ||
627 | /* Get the contents of a section in an Intel Hex file. */ | |
628 | ||
0a1b45a2 | 629 | static bool |
116c20d2 NC |
630 | ihex_get_section_contents (bfd *abfd, |
631 | asection *section, | |
632 | void * location, | |
633 | file_ptr offset, | |
634 | bfd_size_type count) | |
252b5132 RH |
635 | { |
636 | if (section->used_by_bfd == NULL) | |
637 | { | |
eea6121a | 638 | section->used_by_bfd = bfd_alloc (abfd, section->size); |
252b5132 | 639 | if (section->used_by_bfd == NULL) |
0a1b45a2 | 640 | return false; |
a50b1753 | 641 | if (! ihex_read_section (abfd, section, |
07d6d2b8 | 642 | (bfd_byte *) section->used_by_bfd)) |
0a1b45a2 | 643 | return false; |
252b5132 RH |
644 | } |
645 | ||
646 | memcpy (location, (bfd_byte *) section->used_by_bfd + offset, | |
647 | (size_t) count); | |
648 | ||
0a1b45a2 | 649 | return true; |
252b5132 RH |
650 | } |
651 | ||
652 | /* Set the contents of a section in an Intel Hex file. */ | |
653 | ||
0a1b45a2 | 654 | static bool |
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) | |
0a1b45a2 | 668 | return true; |
252b5132 | 669 | |
a50b1753 | 670 | n = (struct ihex_data_list *) bfd_alloc (abfd, sizeof (* n)); |
252b5132 | 671 | if (n == NULL) |
0a1b45a2 | 672 | return false; |
252b5132 | 673 | |
a50b1753 | 674 | data = (bfd_byte *) bfd_alloc (abfd, count); |
252b5132 | 675 | if (data == NULL) |
0a1b45a2 | 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 | ||
0a1b45a2 | 707 | return true; |
252b5132 RH |
708 | } |
709 | ||
710 | /* Write a record out to an Intel Hex file. */ | |
711 | ||
0a1b45a2 | 712 | static bool |
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) | |
0a1b45a2 | 749 | return false; |
252b5132 | 750 | |
0a1b45a2 | 751 | return true; |
252b5132 RH |
752 | } |
753 | ||
754 | /* Write out an Intel Hex file. */ | |
755 | ||
0a1b45a2 | 756 | static bool |
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; | |
d2eb0fb5 | 772 | |
a9859e01 AM |
773 | #ifdef BFD64 |
774 | /* IHex only supports 32-bit addresses, and we want to check | |
775 | that 64-bit addresses are in range. This isn't quite as | |
776 | obvious as it may seem, since some targets have 32-bit | |
777 | addresses that are sign extended to 64 bits. So complain | |
778 | only if addresses overflow both unsigned and signed 32-bit | |
779 | integers. */ | |
780 | if (where > 0xffffffff | |
781 | && where + 0x80000000 > 0xffffffff) | |
782 | { | |
783 | _bfd_error_handler | |
784 | /* xgettext:c-format */ | |
785 | (_("%pB 64-bit address %#" PRIx64 | |
786 | " out of range for Intel Hex file"), | |
787 | abfd, (uint64_t) where); | |
788 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 789 | return false; |
a9859e01 | 790 | } |
d2eb0fb5 | 791 | where &= 0xffffffff; |
a9859e01 | 792 | #endif |
d2eb0fb5 | 793 | |
252b5132 RH |
794 | p = l->data; |
795 | count = l->size; | |
116c20d2 | 796 | |
252b5132 RH |
797 | while (count > 0) |
798 | { | |
dc810e39 AM |
799 | size_t now; |
800 | unsigned int rec_addr; | |
252b5132 RH |
801 | |
802 | now = count; | |
dc810e39 | 803 | if (count > CHUNK) |
252b5132 RH |
804 | now = CHUNK; |
805 | ||
6b5e16ff AM |
806 | if (where < extbase |
807 | || where - extbase < segbase | |
808 | || where - extbase - segbase > 0xffff) | |
252b5132 RH |
809 | { |
810 | bfd_byte addr[2]; | |
811 | ||
812 | /* We need a new base address. */ | |
6b5e16ff | 813 | if (extbase == 0 && where <= 0xfffff) |
252b5132 | 814 | { |
252b5132 RH |
815 | segbase = where & 0xf0000; |
816 | addr[0] = (bfd_byte)(segbase >> 12) & 0xff; | |
817 | addr[1] = (bfd_byte)(segbase >> 4) & 0xff; | |
818 | if (! ihex_write_record (abfd, 2, 0, 2, addr)) | |
0a1b45a2 | 819 | return false; |
252b5132 RH |
820 | } |
821 | else | |
822 | { | |
823 | /* The extended address record and the extended | |
07d6d2b8 AM |
824 | linear address record are combined, at least by |
825 | some readers. We need an extended linear address | |
826 | record here, so if we've already written out an | |
827 | extended address record, zero it out to avoid | |
828 | confusion. */ | |
252b5132 RH |
829 | if (segbase != 0) |
830 | { | |
831 | addr[0] = 0; | |
832 | addr[1] = 0; | |
833 | if (! ihex_write_record (abfd, 2, 0, 2, addr)) | |
0a1b45a2 | 834 | return false; |
252b5132 RH |
835 | segbase = 0; |
836 | } | |
837 | ||
838 | extbase = where & 0xffff0000; | |
839 | if (where > extbase + 0xffff) | |
840 | { | |
4eca0228 | 841 | _bfd_error_handler |
695344c0 | 842 | /* xgettext:c-format */ |
2dcf00ce AM |
843 | (_("%pB: address %#" PRIx64 |
844 | " out of range for Intel Hex file"), | |
845 | abfd, (uint64_t) where); | |
252b5132 | 846 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 847 | return false; |
252b5132 RH |
848 | } |
849 | addr[0] = (bfd_byte)(extbase >> 24) & 0xff; | |
850 | addr[1] = (bfd_byte)(extbase >> 16) & 0xff; | |
851 | if (! ihex_write_record (abfd, 2, 0, 4, addr)) | |
0a1b45a2 | 852 | return false; |
252b5132 RH |
853 | } |
854 | } | |
855 | ||
dc810e39 | 856 | rec_addr = where - (extbase + segbase); |
9e81ee67 | 857 | |
07d6d2b8 AM |
858 | /* Output records shouldn't cross 64K boundaries. */ |
859 | if (rec_addr + now > 0xffff) | |
860 | now = 0x10000 - rec_addr; | |
9e81ee67 | 861 | |
dc810e39 | 862 | if (! ihex_write_record (abfd, now, rec_addr, 0, p)) |
0a1b45a2 | 863 | return false; |
252b5132 RH |
864 | |
865 | where += now; | |
866 | p += now; | |
867 | count -= now; | |
868 | } | |
869 | } | |
870 | ||
871 | if (abfd->start_address != 0) | |
872 | { | |
873 | bfd_vma start; | |
874 | bfd_byte startbuf[4]; | |
875 | ||
876 | start = abfd->start_address; | |
877 | ||
878 | if (start <= 0xfffff) | |
879 | { | |
880 | startbuf[0] = (bfd_byte)((start & 0xf0000) >> 12) & 0xff; | |
881 | startbuf[1] = 0; | |
882 | startbuf[2] = (bfd_byte)(start >> 8) & 0xff; | |
883 | startbuf[3] = (bfd_byte)start & 0xff; | |
884 | if (! ihex_write_record (abfd, 4, 0, 3, startbuf)) | |
0a1b45a2 | 885 | return false; |
252b5132 RH |
886 | } |
887 | else | |
888 | { | |
889 | startbuf[0] = (bfd_byte)(start >> 24) & 0xff; | |
890 | startbuf[1] = (bfd_byte)(start >> 16) & 0xff; | |
891 | startbuf[2] = (bfd_byte)(start >> 8) & 0xff; | |
892 | startbuf[3] = (bfd_byte)start & 0xff; | |
893 | if (! ihex_write_record (abfd, 4, 0, 5, startbuf)) | |
0a1b45a2 | 894 | return false; |
252b5132 RH |
895 | } |
896 | } | |
897 | ||
898 | if (! ihex_write_record (abfd, 0, 0, 1, NULL)) | |
0a1b45a2 | 899 | return false; |
252b5132 | 900 | |
0a1b45a2 | 901 | return true; |
252b5132 RH |
902 | } |
903 | ||
252b5132 RH |
904 | /* Set the architecture for the output file. The architecture is |
905 | irrelevant, so we ignore errors about unknown architectures. */ | |
906 | ||
0a1b45a2 | 907 | static bool |
116c20d2 NC |
908 | ihex_set_arch_mach (bfd *abfd, |
909 | enum bfd_architecture arch, | |
910 | unsigned long mach) | |
252b5132 RH |
911 | { |
912 | if (! bfd_default_set_arch_mach (abfd, arch, mach)) | |
913 | { | |
914 | if (arch != bfd_arch_unknown) | |
0a1b45a2 | 915 | return false; |
252b5132 | 916 | } |
0a1b45a2 | 917 | return true; |
252b5132 RH |
918 | } |
919 | ||
920 | /* Get the size of the headers, for the linker. */ | |
921 | ||
252b5132 | 922 | static int |
a6b96beb AM |
923 | ihex_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED, |
924 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
252b5132 RH |
925 | { |
926 | return 0; | |
927 | } | |
928 | ||
929 | /* Some random definitions for the target vector. */ | |
930 | ||
07d6d2b8 AM |
931 | #define ihex_close_and_cleanup _bfd_generic_close_and_cleanup |
932 | #define ihex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
933 | #define ihex_new_section_hook _bfd_generic_new_section_hook | |
934 | #define ihex_get_section_contents_in_window _bfd_generic_get_section_contents_in_window | |
d00dd7dc AM |
935 | #define ihex_get_symtab_upper_bound _bfd_long_bfd_0 |
936 | #define ihex_canonicalize_symtab _bfd_nosymbols_canonicalize_symtab | |
07d6d2b8 AM |
937 | #define ihex_make_empty_symbol _bfd_generic_make_empty_symbol |
938 | #define ihex_print_symbol _bfd_nosymbols_print_symbol | |
939 | #define ihex_get_symbol_info _bfd_nosymbols_get_symbol_info | |
60bb06bc | 940 | #define ihex_get_symbol_version_string _bfd_nosymbols_get_symbol_version_string |
d00dd7dc | 941 | #define ihex_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false |
07d6d2b8 AM |
942 | #define ihex_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name |
943 | #define ihex_get_lineno _bfd_nosymbols_get_lineno | |
944 | #define ihex_find_nearest_line _bfd_nosymbols_find_nearest_line | |
945 | #define ihex_find_line _bfd_nosymbols_find_line | |
946 | #define ihex_find_inliner_info _bfd_nosymbols_find_inliner_info | |
947 | #define ihex_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol | |
948 | #define ihex_read_minisymbols _bfd_nosymbols_read_minisymbols | |
949 | #define ihex_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol | |
950 | #define ihex_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents | |
951 | #define ihex_bfd_relax_section bfd_generic_relax_section | |
952 | #define ihex_bfd_gc_sections bfd_generic_gc_sections | |
953 | #define ihex_bfd_lookup_section_flags bfd_generic_lookup_section_flags | |
954 | #define ihex_bfd_merge_sections bfd_generic_merge_sections | |
955 | #define ihex_bfd_is_group_section bfd_generic_is_group_section | |
cb7f4b29 | 956 | #define ihex_bfd_group_name bfd_generic_group_name |
07d6d2b8 AM |
957 | #define ihex_bfd_discard_group bfd_generic_discard_group |
958 | #define ihex_section_already_linked _bfd_generic_section_already_linked | |
959 | #define ihex_bfd_define_common_symbol bfd_generic_define_common_symbol | |
34a87bb0 | 960 | #define ihex_bfd_link_hide_symbol _bfd_generic_link_hide_symbol |
07d6d2b8 AM |
961 | #define ihex_bfd_define_start_stop bfd_generic_define_start_stop |
962 | #define ihex_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
963 | #define ihex_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
964 | #define ihex_bfd_link_just_syms _bfd_generic_link_just_syms | |
965 | #define ihex_bfd_copy_link_hash_symbol_type _bfd_generic_copy_link_hash_symbol_type | |
966 | #define ihex_bfd_final_link _bfd_generic_final_link | |
967 | #define ihex_bfd_link_split_section _bfd_generic_link_split_section | |
968 | #define ihex_bfd_link_check_relocs _bfd_generic_link_check_relocs | |
252b5132 RH |
969 | |
970 | /* The Intel Hex target vector. */ | |
971 | ||
972 | const bfd_target ihex_vec = | |
973 | { | |
116c20d2 | 974 | "ihex", /* Name. */ |
252b5132 | 975 | bfd_target_ihex_flavour, |
116c20d2 NC |
976 | BFD_ENDIAN_UNKNOWN, /* Target byte order. */ |
977 | BFD_ENDIAN_UNKNOWN, /* Target headers byte order. */ | |
978 | 0, /* Object flags. */ | |
979 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD), /* Section flags. */ | |
980 | 0, /* Leading underscore. */ | |
981 | ' ', /* AR_pad_char. */ | |
982 | 16, /* AR_max_namelen. */ | |
0aabe54e | 983 | 0, /* match priority. */ |
d1bcae83 | 984 | TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ |
252b5132 RH |
985 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
986 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
116c20d2 | 987 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */ |
252b5132 RH |
988 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
989 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
116c20d2 | 990 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */ |
252b5132 RH |
991 | |
992 | { | |
993 | _bfd_dummy_target, | |
116c20d2 | 994 | ihex_object_p, /* bfd_check_format. */ |
252b5132 RH |
995 | _bfd_dummy_target, |
996 | _bfd_dummy_target, | |
997 | }, | |
998 | { | |
d00dd7dc | 999 | _bfd_bool_bfd_false_error, |
252b5132 RH |
1000 | ihex_mkobject, |
1001 | _bfd_generic_mkarchive, | |
d00dd7dc | 1002 | _bfd_bool_bfd_false_error, |
252b5132 | 1003 | }, |
116c20d2 | 1004 | { /* bfd_write_contents. */ |
d00dd7dc | 1005 | _bfd_bool_bfd_false_error, |
252b5132 RH |
1006 | ihex_write_object_contents, |
1007 | _bfd_write_archive_contents, | |
d00dd7dc | 1008 | _bfd_bool_bfd_false_error, |
252b5132 RH |
1009 | }, |
1010 | ||
1011 | BFD_JUMP_TABLE_GENERIC (ihex), | |
1012 | BFD_JUMP_TABLE_COPY (_bfd_generic), | |
1013 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
1014 | BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), | |
1015 | BFD_JUMP_TABLE_SYMBOLS (ihex), | |
72f6ea61 | 1016 | BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), |
252b5132 RH |
1017 | BFD_JUMP_TABLE_WRITE (ihex), |
1018 | BFD_JUMP_TABLE_LINK (ihex), | |
1019 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
1020 | ||
c3c89269 | 1021 | NULL, |
dc810e39 | 1022 | |
116c20d2 | 1023 | NULL |
252b5132 | 1024 | }; |