Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* BFD back-end for Intel Hex objects. |
3f3c5c34 | 2 | Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002 |
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 | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 | |
119 | 20..21 Carriage return, line feed | |
120 | */ | |
121 | ||
122 | #include "bfd.h" | |
123 | #include "sysdep.h" | |
124 | #include "libbfd.h" | |
125 | #include "libiberty.h" | |
3882b010 | 126 | #include "safe-ctype.h" |
252b5132 RH |
127 | |
128 | static void ihex_init PARAMS ((void)); | |
129 | static boolean ihex_mkobject PARAMS ((bfd *)); | |
130 | static INLINE int ihex_get_byte PARAMS ((bfd *, boolean *)); | |
131 | static void ihex_bad_byte PARAMS ((bfd *, unsigned int, int, boolean)); | |
132 | static boolean ihex_scan PARAMS ((bfd *)); | |
133 | static const bfd_target *ihex_object_p PARAMS ((bfd *)); | |
134 | static boolean ihex_read_section PARAMS ((bfd *, asection *, bfd_byte *)); | |
135 | static boolean ihex_get_section_contents | |
136 | PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type)); | |
137 | static boolean ihex_set_section_contents | |
138 | PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type)); | |
139 | static boolean ihex_write_record | |
dc810e39 | 140 | PARAMS ((bfd *, size_t, unsigned int, unsigned int, bfd_byte *)); |
252b5132 | 141 | static boolean ihex_write_object_contents PARAMS ((bfd *)); |
252b5132 RH |
142 | static boolean ihex_set_arch_mach |
143 | PARAMS ((bfd *, enum bfd_architecture, unsigned long)); | |
144 | static int ihex_sizeof_headers PARAMS ((bfd *, boolean)); | |
145 | ||
146 | /* The number of bytes we put on one line during output. */ | |
147 | ||
65d7f9a6 | 148 | #define CHUNK 16 |
252b5132 | 149 | |
3d8dbe36 | 150 | /* Macros for converting between hex and binary. */ |
252b5132 | 151 | |
3d8dbe36 | 152 | #define NIBBLE(x) (hex_value (x)) |
252b5132 RH |
153 | #define HEX2(buffer) ((NIBBLE ((buffer)[0]) << 4) + NIBBLE ((buffer)[1])) |
154 | #define HEX4(buffer) ((HEX2 (buffer) << 8) + HEX2 ((buffer) + 2)) | |
3d8dbe36 | 155 | #define ISHEX(x) (hex_p (x)) |
252b5132 RH |
156 | |
157 | /* When we write out an ihex value, the values can not be output as | |
158 | they are seen. Instead, we hold them in memory in this structure. */ | |
159 | ||
160 | struct ihex_data_list | |
161 | { | |
162 | struct ihex_data_list *next; | |
163 | bfd_byte *data; | |
164 | bfd_vma where; | |
165 | bfd_size_type size; | |
166 | }; | |
167 | ||
168 | /* The ihex tdata information. */ | |
169 | ||
170 | struct ihex_data_struct | |
171 | { | |
172 | struct ihex_data_list *head; | |
173 | struct ihex_data_list *tail; | |
174 | }; | |
175 | ||
176 | /* Initialize by filling in the hex conversion array. */ | |
177 | ||
178 | static void | |
179 | ihex_init () | |
180 | { | |
181 | static boolean inited; | |
182 | ||
183 | if (! inited) | |
184 | { | |
185 | inited = true; | |
186 | hex_init (); | |
187 | } | |
188 | } | |
189 | ||
190 | /* Create an ihex object. */ | |
191 | ||
192 | static boolean | |
193 | ihex_mkobject (abfd) | |
194 | bfd *abfd; | |
195 | { | |
487e54f2 AM |
196 | struct ihex_data_struct *tdata; |
197 | bfd_size_type amt = sizeof (struct ihex_data_struct); | |
252b5132 | 198 | |
487e54f2 AM |
199 | tdata = (struct ihex_data_struct *) bfd_alloc (abfd, amt); |
200 | if (tdata == NULL) | |
201 | return false; | |
202 | ||
203 | abfd->tdata.ihex_data = tdata; | |
204 | tdata->head = NULL; | |
205 | tdata->tail = NULL; | |
252b5132 RH |
206 | return true; |
207 | } | |
208 | ||
209 | /* Read a byte from a BFD. Set *ERRORPTR if an error occurred. | |
210 | Return EOF on error or end of file. */ | |
211 | ||
212 | static INLINE int | |
213 | ihex_get_byte (abfd, errorptr) | |
214 | bfd *abfd; | |
215 | boolean *errorptr; | |
216 | { | |
217 | bfd_byte c; | |
218 | ||
dc810e39 | 219 | if (bfd_bread (&c, (bfd_size_type) 1, abfd) != 1) |
252b5132 RH |
220 | { |
221 | if (bfd_get_error () != bfd_error_file_truncated) | |
222 | *errorptr = true; | |
223 | return EOF; | |
224 | } | |
225 | ||
226 | return (int) (c & 0xff); | |
227 | } | |
228 | ||
229 | /* Report a problem in an Intel Hex file. */ | |
230 | ||
231 | static void | |
232 | ihex_bad_byte (abfd, lineno, c, error) | |
233 | bfd *abfd; | |
234 | unsigned int lineno; | |
235 | int c; | |
236 | boolean error; | |
237 | { | |
238 | if (c == EOF) | |
239 | { | |
240 | if (! error) | |
241 | bfd_set_error (bfd_error_file_truncated); | |
242 | } | |
243 | else | |
244 | { | |
245 | char buf[10]; | |
246 | ||
3882b010 | 247 | if (! ISPRINT (c)) |
252b5132 RH |
248 | sprintf (buf, "\\%03o", (unsigned int) c); |
249 | else | |
250 | { | |
251 | buf[0] = c; | |
252 | buf[1] = '\0'; | |
253 | } | |
254 | (*_bfd_error_handler) | |
255 | (_("%s:%d: unexpected character `%s' in Intel Hex file\n"), | |
8f615d07 | 256 | bfd_archive_filename (abfd), lineno, buf); |
252b5132 RH |
257 | bfd_set_error (bfd_error_bad_value); |
258 | } | |
259 | } | |
260 | ||
261 | /* Read an Intel hex file and turn it into sections. We create a new | |
262 | section for each contiguous set of bytes. */ | |
263 | ||
264 | static boolean | |
265 | ihex_scan (abfd) | |
266 | bfd *abfd; | |
267 | { | |
268 | bfd_vma segbase; | |
269 | bfd_vma extbase; | |
270 | asection *sec; | |
dc810e39 | 271 | unsigned int lineno; |
252b5132 RH |
272 | boolean error; |
273 | bfd_byte *buf = NULL; | |
274 | size_t bufsize; | |
275 | int c; | |
276 | ||
277 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
278 | goto error_return; | |
279 | ||
280 | abfd->start_address = 0; | |
281 | ||
282 | segbase = 0; | |
283 | extbase = 0; | |
284 | sec = NULL; | |
285 | lineno = 1; | |
286 | error = false; | |
287 | bufsize = 0; | |
3d8dbe36 | 288 | |
252b5132 RH |
289 | while ((c = ihex_get_byte (abfd, &error)) != EOF) |
290 | { | |
291 | if (c == '\r') | |
292 | continue; | |
293 | else if (c == '\n') | |
294 | { | |
295 | ++lineno; | |
296 | continue; | |
297 | } | |
298 | else if (c != ':') | |
299 | { | |
300 | ihex_bad_byte (abfd, lineno, c, error); | |
301 | goto error_return; | |
302 | } | |
303 | else | |
304 | { | |
305 | file_ptr pos; | |
306 | char hdr[8]; | |
307 | unsigned int i; | |
308 | unsigned int len; | |
309 | bfd_vma addr; | |
310 | unsigned int type; | |
311 | unsigned int chars; | |
312 | unsigned int chksum; | |
313 | ||
314 | /* This is a data record. */ | |
252b5132 RH |
315 | pos = bfd_tell (abfd) - 1; |
316 | ||
317 | /* Read the header bytes. */ | |
dc810e39 | 318 | if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8) |
252b5132 RH |
319 | goto error_return; |
320 | ||
321 | for (i = 0; i < 8; i++) | |
322 | { | |
323 | if (! ISHEX (hdr[i])) | |
324 | { | |
325 | ihex_bad_byte (abfd, lineno, hdr[i], error); | |
326 | goto error_return; | |
327 | } | |
328 | } | |
329 | ||
330 | len = HEX2 (hdr); | |
331 | addr = HEX4 (hdr + 2); | |
332 | type = HEX2 (hdr + 6); | |
333 | ||
334 | /* Read the data bytes. */ | |
252b5132 RH |
335 | chars = len * 2 + 2; |
336 | if (chars >= bufsize) | |
337 | { | |
dc810e39 | 338 | buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) chars); |
252b5132 RH |
339 | if (buf == NULL) |
340 | goto error_return; | |
341 | bufsize = chars; | |
342 | } | |
343 | ||
dc810e39 | 344 | if (bfd_bread (buf, (bfd_size_type) chars, abfd) != chars) |
252b5132 RH |
345 | goto error_return; |
346 | ||
347 | for (i = 0; i < chars; i++) | |
348 | { | |
349 | if (! ISHEX (buf[i])) | |
350 | { | |
351 | ihex_bad_byte (abfd, lineno, hdr[i], error); | |
352 | goto error_return; | |
353 | } | |
354 | } | |
355 | ||
356 | /* Check the checksum. */ | |
357 | chksum = len + addr + (addr >> 8) + type; | |
358 | for (i = 0; i < len; i++) | |
359 | chksum += HEX2 (buf + 2 * i); | |
360 | if (((- chksum) & 0xff) != (unsigned int) HEX2 (buf + 2 * i)) | |
361 | { | |
362 | (*_bfd_error_handler) | |
dc810e39 | 363 | (_("%s:%u: bad checksum in Intel Hex file (expected %u, found %u)"), |
8f615d07 | 364 | bfd_archive_filename (abfd), lineno, |
252b5132 RH |
365 | (- chksum) & 0xff, (unsigned int) HEX2 (buf + 2 * i)); |
366 | bfd_set_error (bfd_error_bad_value); | |
367 | goto error_return; | |
368 | } | |
369 | ||
370 | switch (type) | |
371 | { | |
372 | case 0: | |
373 | /* This is a data record. */ | |
374 | if (sec != NULL | |
375 | && sec->vma + sec->_raw_size == extbase + segbase + addr) | |
376 | { | |
377 | /* This data goes at the end of the section we are | |
378 | currently building. */ | |
379 | sec->_raw_size += len; | |
380 | } | |
381 | else if (len > 0) | |
382 | { | |
383 | char secbuf[20]; | |
384 | char *secname; | |
dc810e39 | 385 | bfd_size_type amt; |
252b5132 RH |
386 | |
387 | sprintf (secbuf, ".sec%d", bfd_count_sections (abfd) + 1); | |
dc810e39 AM |
388 | amt = strlen (secbuf) + 1; |
389 | secname = (char *) bfd_alloc (abfd, amt); | |
252b5132 RH |
390 | if (secname == NULL) |
391 | goto error_return; | |
392 | strcpy (secname, secbuf); | |
393 | sec = bfd_make_section (abfd, secname); | |
394 | if (sec == NULL) | |
395 | goto error_return; | |
396 | sec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC; | |
397 | sec->vma = extbase + segbase + addr; | |
398 | sec->lma = extbase + segbase + addr; | |
399 | sec->_raw_size = len; | |
400 | sec->filepos = pos; | |
401 | } | |
402 | break; | |
403 | ||
404 | case 1: | |
405 | /* An end record. */ | |
406 | if (abfd->start_address == 0) | |
407 | abfd->start_address = addr; | |
408 | if (buf != NULL) | |
409 | free (buf); | |
410 | return true; | |
411 | ||
412 | case 2: | |
413 | /* An extended address record. */ | |
414 | if (len != 2) | |
415 | { | |
416 | (*_bfd_error_handler) | |
dc810e39 | 417 | (_("%s:%u: bad extended address record length in Intel Hex file"), |
8f615d07 | 418 | bfd_archive_filename (abfd), lineno); |
252b5132 RH |
419 | bfd_set_error (bfd_error_bad_value); |
420 | goto error_return; | |
421 | } | |
422 | ||
423 | segbase = HEX4 (buf) << 4; | |
424 | ||
425 | sec = NULL; | |
426 | ||
427 | break; | |
428 | ||
429 | case 3: | |
430 | /* An extended start address record. */ | |
431 | if (len != 4) | |
432 | { | |
433 | (*_bfd_error_handler) | |
dc810e39 | 434 | (_("%s:%u: bad extended start address length in Intel Hex file"), |
8f615d07 | 435 | bfd_archive_filename (abfd), lineno); |
252b5132 RH |
436 | bfd_set_error (bfd_error_bad_value); |
437 | goto error_return; | |
438 | } | |
439 | ||
440 | abfd->start_address += (HEX4 (buf) << 4) + HEX4 (buf + 4); | |
441 | ||
442 | sec = NULL; | |
443 | ||
444 | break; | |
445 | ||
446 | case 4: | |
447 | /* An extended linear address record. */ | |
448 | if (len != 2) | |
449 | { | |
450 | (*_bfd_error_handler) | |
dc810e39 | 451 | (_("%s:%u: bad extended linear address record length in Intel Hex file"), |
8f615d07 | 452 | bfd_archive_filename (abfd), lineno); |
252b5132 RH |
453 | bfd_set_error (bfd_error_bad_value); |
454 | goto error_return; | |
455 | } | |
456 | ||
457 | extbase = HEX4 (buf) << 16; | |
458 | ||
459 | sec = NULL; | |
460 | ||
461 | break; | |
462 | ||
463 | case 5: | |
464 | /* An extended linear start address record. */ | |
465 | if (len != 2 && len != 4) | |
466 | { | |
467 | (*_bfd_error_handler) | |
dc810e39 | 468 | (_("%s:%u: bad extended linear start address length in Intel Hex file"), |
8f615d07 | 469 | bfd_archive_filename (abfd), lineno); |
252b5132 RH |
470 | bfd_set_error (bfd_error_bad_value); |
471 | goto error_return; | |
472 | } | |
473 | ||
474 | if (len == 2) | |
475 | abfd->start_address += HEX4 (buf) << 16; | |
476 | else | |
477 | abfd->start_address = (HEX4 (buf) << 16) + HEX4 (buf + 4); | |
478 | ||
479 | sec = NULL; | |
480 | ||
481 | break; | |
482 | ||
483 | default: | |
484 | (*_bfd_error_handler) | |
dc810e39 | 485 | (_("%s:%u: unrecognized ihex type %u in Intel Hex file\n"), |
8f615d07 | 486 | bfd_archive_filename (abfd), lineno, type); |
252b5132 RH |
487 | bfd_set_error (bfd_error_bad_value); |
488 | goto error_return; | |
489 | } | |
490 | } | |
491 | } | |
492 | ||
493 | if (error) | |
494 | goto error_return; | |
495 | ||
496 | if (buf != NULL) | |
497 | free (buf); | |
498 | ||
499 | return true; | |
500 | ||
501 | error_return: | |
502 | if (buf != NULL) | |
503 | free (buf); | |
504 | return false; | |
505 | } | |
506 | ||
507 | /* Try to recognize an Intel Hex file. */ | |
508 | ||
509 | static const bfd_target * | |
510 | ihex_object_p (abfd) | |
511 | bfd *abfd; | |
512 | { | |
487e54f2 | 513 | PTR tdata_save; |
252b5132 RH |
514 | bfd_byte b[9]; |
515 | unsigned int i; | |
516 | unsigned int type; | |
517 | ||
518 | ihex_init (); | |
519 | ||
520 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
521 | return NULL; | |
dc810e39 | 522 | if (bfd_bread (b, (bfd_size_type) 9, abfd) != 9) |
252b5132 RH |
523 | { |
524 | if (bfd_get_error () == bfd_error_file_truncated) | |
525 | bfd_set_error (bfd_error_wrong_format); | |
526 | return NULL; | |
527 | } | |
528 | ||
529 | if (b[0] != ':') | |
530 | { | |
531 | bfd_set_error (bfd_error_wrong_format); | |
532 | return NULL; | |
533 | } | |
534 | ||
535 | for (i = 1; i < 9; i++) | |
536 | { | |
537 | if (! ISHEX (b[i])) | |
538 | { | |
539 | bfd_set_error (bfd_error_wrong_format); | |
540 | return NULL; | |
541 | } | |
542 | } | |
543 | ||
544 | type = HEX2 (b + 7); | |
545 | if (type > 5) | |
546 | { | |
547 | bfd_set_error (bfd_error_wrong_format); | |
548 | return NULL; | |
549 | } | |
550 | ||
551 | /* OK, it looks like it really is an Intel Hex file. */ | |
487e54f2 AM |
552 | tdata_save = abfd->tdata.any; |
553 | if (! ihex_mkobject (abfd) || ! ihex_scan (abfd)) | |
554 | { | |
555 | if (abfd->tdata.any != tdata_save && abfd->tdata.any != NULL) | |
556 | bfd_release (abfd, abfd->tdata.any); | |
557 | abfd->tdata.any = tdata_save; | |
558 | return NULL; | |
559 | } | |
252b5132 RH |
560 | |
561 | return abfd->xvec; | |
562 | } | |
563 | ||
564 | /* Read the contents of a section in an Intel Hex file. */ | |
565 | ||
566 | static boolean | |
567 | ihex_read_section (abfd, section, contents) | |
568 | bfd *abfd; | |
569 | asection *section; | |
570 | bfd_byte *contents; | |
571 | { | |
572 | int c; | |
573 | bfd_byte *p; | |
574 | bfd_byte *buf = NULL; | |
575 | size_t bufsize; | |
576 | boolean error; | |
577 | ||
578 | if (bfd_seek (abfd, section->filepos, SEEK_SET) != 0) | |
579 | goto error_return; | |
580 | ||
581 | p = contents; | |
582 | bufsize = 0; | |
583 | error = false; | |
584 | while ((c = ihex_get_byte (abfd, &error)) != EOF) | |
585 | { | |
586 | char hdr[8]; | |
587 | unsigned int len; | |
588 | bfd_vma addr; | |
589 | unsigned int type; | |
590 | unsigned int i; | |
591 | ||
592 | if (c == '\r' || c == '\n') | |
593 | continue; | |
594 | ||
595 | /* This is called after ihex_scan has succeeded, so we ought to | |
596 | know the exact format. */ | |
597 | BFD_ASSERT (c == ':'); | |
598 | ||
dc810e39 | 599 | if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8) |
252b5132 RH |
600 | goto error_return; |
601 | ||
602 | len = HEX2 (hdr); | |
603 | addr = HEX4 (hdr + 2); | |
604 | type = HEX2 (hdr + 6); | |
605 | ||
606 | /* We should only see type 0 records here. */ | |
607 | if (type != 0) | |
608 | { | |
609 | (*_bfd_error_handler) | |
610 | (_("%s: internal error in ihex_read_section"), | |
8f615d07 | 611 | bfd_archive_filename (abfd)); |
252b5132 RH |
612 | bfd_set_error (bfd_error_bad_value); |
613 | goto error_return; | |
614 | } | |
615 | ||
616 | if (len * 2 > bufsize) | |
617 | { | |
dc810e39 | 618 | buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) len * 2); |
252b5132 RH |
619 | if (buf == NULL) |
620 | goto error_return; | |
621 | bufsize = len * 2; | |
622 | } | |
623 | ||
dc810e39 | 624 | if (bfd_bread (buf, (bfd_size_type) len * 2, abfd) != len * 2) |
252b5132 RH |
625 | goto error_return; |
626 | ||
627 | for (i = 0; i < len; i++) | |
628 | *p++ = HEX2 (buf + 2 * i); | |
629 | if ((bfd_size_type) (p - contents) >= section->_raw_size) | |
630 | { | |
631 | /* We've read everything in the section. */ | |
632 | if (buf != NULL) | |
633 | free (buf); | |
634 | return true; | |
635 | } | |
636 | ||
637 | /* Skip the checksum. */ | |
dc810e39 | 638 | if (bfd_bread (buf, (bfd_size_type) 2, abfd) != 2) |
252b5132 RH |
639 | goto error_return; |
640 | } | |
641 | ||
642 | if ((bfd_size_type) (p - contents) < section->_raw_size) | |
643 | { | |
644 | (*_bfd_error_handler) | |
645 | (_("%s: bad section length in ihex_read_section"), | |
8f615d07 | 646 | bfd_archive_filename (abfd)); |
252b5132 RH |
647 | bfd_set_error (bfd_error_bad_value); |
648 | goto error_return; | |
649 | } | |
650 | ||
651 | if (buf != NULL) | |
652 | free (buf); | |
653 | ||
654 | return true; | |
655 | ||
656 | error_return: | |
657 | if (buf != NULL) | |
658 | free (buf); | |
659 | return false; | |
660 | } | |
661 | ||
662 | /* Get the contents of a section in an Intel Hex file. */ | |
663 | ||
664 | static boolean | |
665 | ihex_get_section_contents (abfd, section, location, offset, count) | |
666 | bfd *abfd; | |
667 | asection *section; | |
668 | PTR location; | |
669 | file_ptr offset; | |
670 | bfd_size_type count; | |
671 | { | |
672 | if (section->used_by_bfd == NULL) | |
673 | { | |
674 | section->used_by_bfd = bfd_alloc (abfd, section->_raw_size); | |
675 | if (section->used_by_bfd == NULL) | |
676 | return false; | |
677 | if (! ihex_read_section (abfd, section, section->used_by_bfd)) | |
678 | return false; | |
679 | } | |
680 | ||
681 | memcpy (location, (bfd_byte *) section->used_by_bfd + offset, | |
682 | (size_t) count); | |
683 | ||
684 | return true; | |
685 | } | |
686 | ||
687 | /* Set the contents of a section in an Intel Hex file. */ | |
688 | ||
689 | static boolean | |
690 | ihex_set_section_contents (abfd, section, location, offset, count) | |
691 | bfd *abfd; | |
692 | asection *section; | |
693 | PTR location; | |
694 | file_ptr offset; | |
695 | bfd_size_type count; | |
696 | { | |
697 | struct ihex_data_list *n; | |
698 | bfd_byte *data; | |
699 | struct ihex_data_struct *tdata; | |
dc810e39 | 700 | bfd_size_type amt; |
252b5132 RH |
701 | |
702 | if (count == 0 | |
703 | || (section->flags & SEC_ALLOC) == 0 | |
704 | || (section->flags & SEC_LOAD) == 0) | |
705 | return true; | |
706 | ||
dc810e39 AM |
707 | amt = sizeof (struct ihex_data_list); |
708 | n = (struct ihex_data_list *) bfd_alloc (abfd, amt); | |
252b5132 RH |
709 | if (n == NULL) |
710 | return false; | |
711 | ||
712 | data = (bfd_byte *) bfd_alloc (abfd, count); | |
713 | if (data == NULL) | |
714 | return false; | |
715 | memcpy (data, location, (size_t) count); | |
716 | ||
717 | n->data = data; | |
718 | n->where = section->lma + offset; | |
719 | n->size = count; | |
720 | ||
721 | /* Sort the records by address. Optimize for the common case of | |
722 | adding a record to the end of the list. */ | |
723 | tdata = abfd->tdata.ihex_data; | |
724 | if (tdata->tail != NULL | |
725 | && n->where >= tdata->tail->where) | |
726 | { | |
727 | tdata->tail->next = n; | |
728 | n->next = NULL; | |
729 | tdata->tail = n; | |
730 | } | |
731 | else | |
732 | { | |
733 | register struct ihex_data_list **pp; | |
734 | ||
735 | for (pp = &tdata->head; | |
736 | *pp != NULL && (*pp)->where < n->where; | |
737 | pp = &(*pp)->next) | |
738 | ; | |
739 | n->next = *pp; | |
740 | *pp = n; | |
741 | if (n->next == NULL) | |
742 | tdata->tail = n; | |
743 | } | |
744 | ||
745 | return true; | |
746 | } | |
747 | ||
748 | /* Write a record out to an Intel Hex file. */ | |
749 | ||
750 | static boolean | |
751 | ihex_write_record (abfd, count, addr, type, data) | |
752 | bfd *abfd; | |
dc810e39 AM |
753 | size_t count; |
754 | unsigned int addr; | |
252b5132 RH |
755 | unsigned int type; |
756 | bfd_byte *data; | |
757 | { | |
758 | static const char digs[] = "0123456789ABCDEF"; | |
759 | char buf[9 + CHUNK * 2 + 4]; | |
760 | char *p; | |
761 | unsigned int chksum; | |
762 | unsigned int i; | |
dc810e39 | 763 | size_t total; |
252b5132 RH |
764 | |
765 | #define TOHEX(buf, v) \ | |
766 | ((buf)[0] = digs[((v) >> 4) & 0xf], (buf)[1] = digs[(v) & 0xf]) | |
767 | ||
768 | buf[0] = ':'; | |
769 | TOHEX (buf + 1, count); | |
770 | TOHEX (buf + 3, (addr >> 8) & 0xff); | |
771 | TOHEX (buf + 5, addr & 0xff); | |
772 | TOHEX (buf + 7, type); | |
773 | ||
774 | chksum = count + addr + (addr >> 8) + type; | |
775 | ||
776 | for (i = 0, p = buf + 9; i < count; i++, p += 2, data++) | |
777 | { | |
778 | TOHEX (p, *data); | |
779 | chksum += *data; | |
780 | } | |
781 | ||
782 | TOHEX (p, (- chksum) & 0xff); | |
783 | p[2] = '\r'; | |
784 | p[3] = '\n'; | |
785 | ||
dc810e39 AM |
786 | total = 9 + count * 2 + 4; |
787 | if (bfd_bwrite (buf, (bfd_size_type) total, abfd) != total) | |
252b5132 RH |
788 | return false; |
789 | ||
790 | return true; | |
791 | } | |
792 | ||
793 | /* Write out an Intel Hex file. */ | |
794 | ||
795 | static boolean | |
796 | ihex_write_object_contents (abfd) | |
797 | bfd *abfd; | |
798 | { | |
799 | bfd_vma segbase; | |
800 | bfd_vma extbase; | |
801 | struct ihex_data_list *l; | |
802 | ||
803 | segbase = 0; | |
804 | extbase = 0; | |
805 | for (l = abfd->tdata.ihex_data->head; l != NULL; l = l->next) | |
806 | { | |
807 | bfd_vma where; | |
808 | bfd_byte *p; | |
809 | bfd_size_type count; | |
810 | ||
811 | where = l->where; | |
812 | p = l->data; | |
813 | count = l->size; | |
814 | while (count > 0) | |
815 | { | |
dc810e39 AM |
816 | size_t now; |
817 | unsigned int rec_addr; | |
252b5132 RH |
818 | |
819 | now = count; | |
dc810e39 | 820 | if (count > CHUNK) |
252b5132 RH |
821 | now = CHUNK; |
822 | ||
823 | if (where > segbase + extbase + 0xffff) | |
824 | { | |
825 | bfd_byte addr[2]; | |
826 | ||
827 | /* We need a new base address. */ | |
828 | if (where <= 0xfffff) | |
829 | { | |
830 | /* The addresses should be sorted. */ | |
831 | BFD_ASSERT (extbase == 0); | |
832 | ||
833 | segbase = where & 0xf0000; | |
834 | addr[0] = (bfd_byte)(segbase >> 12) & 0xff; | |
835 | addr[1] = (bfd_byte)(segbase >> 4) & 0xff; | |
836 | if (! ihex_write_record (abfd, 2, 0, 2, addr)) | |
837 | return false; | |
838 | } | |
839 | else | |
840 | { | |
841 | /* The extended address record and the extended | |
842 | linear address record are combined, at least by | |
843 | some readers. We need an extended linear address | |
844 | record here, so if we've already written out an | |
845 | extended address record, zero it out to avoid | |
846 | confusion. */ | |
847 | if (segbase != 0) | |
848 | { | |
849 | addr[0] = 0; | |
850 | addr[1] = 0; | |
851 | if (! ihex_write_record (abfd, 2, 0, 2, addr)) | |
852 | return false; | |
853 | segbase = 0; | |
854 | } | |
855 | ||
856 | extbase = where & 0xffff0000; | |
857 | if (where > extbase + 0xffff) | |
858 | { | |
859 | char buf[20]; | |
860 | ||
861 | sprintf_vma (buf, where); | |
862 | (*_bfd_error_handler) | |
ca09e32b | 863 | (_("%s: address 0x%s out of range for Intel Hex file"), |
252b5132 RH |
864 | bfd_get_filename (abfd), buf); |
865 | bfd_set_error (bfd_error_bad_value); | |
866 | return false; | |
867 | } | |
868 | addr[0] = (bfd_byte)(extbase >> 24) & 0xff; | |
869 | addr[1] = (bfd_byte)(extbase >> 16) & 0xff; | |
870 | if (! ihex_write_record (abfd, 2, 0, 4, addr)) | |
871 | return false; | |
872 | } | |
873 | } | |
874 | ||
dc810e39 | 875 | rec_addr = where - (extbase + segbase); |
9e81ee67 NC |
876 | |
877 | /* Output records shouldn't cross 64K boundaries. */ | |
3d8dbe36 NC |
878 | if (rec_addr + now > 0xffff) |
879 | now = 0x10000 - rec_addr; | |
9e81ee67 | 880 | |
dc810e39 | 881 | if (! ihex_write_record (abfd, now, rec_addr, 0, p)) |
252b5132 RH |
882 | return false; |
883 | ||
884 | where += now; | |
885 | p += now; | |
886 | count -= now; | |
887 | } | |
888 | } | |
889 | ||
890 | if (abfd->start_address != 0) | |
891 | { | |
892 | bfd_vma start; | |
893 | bfd_byte startbuf[4]; | |
894 | ||
895 | start = abfd->start_address; | |
896 | ||
897 | if (start <= 0xfffff) | |
898 | { | |
899 | startbuf[0] = (bfd_byte)((start & 0xf0000) >> 12) & 0xff; | |
900 | startbuf[1] = 0; | |
901 | startbuf[2] = (bfd_byte)(start >> 8) & 0xff; | |
902 | startbuf[3] = (bfd_byte)start & 0xff; | |
903 | if (! ihex_write_record (abfd, 4, 0, 3, startbuf)) | |
904 | return false; | |
905 | } | |
906 | else | |
907 | { | |
908 | startbuf[0] = (bfd_byte)(start >> 24) & 0xff; | |
909 | startbuf[1] = (bfd_byte)(start >> 16) & 0xff; | |
910 | startbuf[2] = (bfd_byte)(start >> 8) & 0xff; | |
911 | startbuf[3] = (bfd_byte)start & 0xff; | |
912 | if (! ihex_write_record (abfd, 4, 0, 5, startbuf)) | |
913 | return false; | |
914 | } | |
915 | } | |
916 | ||
917 | if (! ihex_write_record (abfd, 0, 0, 1, NULL)) | |
918 | return false; | |
919 | ||
920 | return true; | |
921 | } | |
922 | ||
252b5132 RH |
923 | /* Set the architecture for the output file. The architecture is |
924 | irrelevant, so we ignore errors about unknown architectures. */ | |
925 | ||
926 | static boolean | |
927 | ihex_set_arch_mach (abfd, arch, mach) | |
928 | bfd *abfd; | |
929 | enum bfd_architecture arch; | |
930 | unsigned long mach; | |
931 | { | |
932 | if (! bfd_default_set_arch_mach (abfd, arch, mach)) | |
933 | { | |
934 | if (arch != bfd_arch_unknown) | |
935 | return false; | |
936 | } | |
937 | return true; | |
938 | } | |
939 | ||
940 | /* Get the size of the headers, for the linker. */ | |
941 | ||
942 | /*ARGSUSED*/ | |
943 | static int | |
944 | ihex_sizeof_headers (abfd, exec) | |
7442e600 ILT |
945 | bfd *abfd ATTRIBUTE_UNUSED; |
946 | boolean exec ATTRIBUTE_UNUSED; | |
252b5132 RH |
947 | { |
948 | return 0; | |
949 | } | |
950 | ||
951 | /* Some random definitions for the target vector. */ | |
952 | ||
953 | #define ihex_close_and_cleanup _bfd_generic_close_and_cleanup | |
954 | #define ihex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
955 | #define ihex_new_section_hook _bfd_generic_new_section_hook | |
956 | #define ihex_get_section_contents_in_window \ | |
957 | _bfd_generic_get_section_contents_in_window | |
958 | ||
959 | #define ihex_get_symtab_upper_bound bfd_0l | |
960 | #define ihex_get_symtab \ | |
961 | ((long (*) PARAMS ((bfd *, asymbol **))) bfd_0l) | |
3f3c5c34 | 962 | #define ihex_make_empty_symbol _bfd_generic_make_empty_symbol |
252b5132 RH |
963 | #define ihex_print_symbol _bfd_nosymbols_print_symbol |
964 | #define ihex_get_symbol_info _bfd_nosymbols_get_symbol_info | |
965 | #define ihex_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name | |
966 | #define ihex_get_lineno _bfd_nosymbols_get_lineno | |
967 | #define ihex_find_nearest_line _bfd_nosymbols_find_nearest_line | |
968 | #define ihex_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol | |
969 | #define ihex_read_minisymbols _bfd_nosymbols_read_minisymbols | |
970 | #define ihex_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol | |
971 | ||
972 | #define ihex_get_reloc_upper_bound \ | |
973 | ((long (*) PARAMS ((bfd *, asection *))) bfd_0l) | |
974 | #define ihex_canonicalize_reloc \ | |
975 | ((long (*) PARAMS ((bfd *, asection *, arelent **, asymbol **))) bfd_0l) | |
976 | #define ihex_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup | |
977 | ||
978 | #define ihex_bfd_get_relocated_section_contents \ | |
979 | bfd_generic_get_relocated_section_contents | |
980 | #define ihex_bfd_relax_section bfd_generic_relax_section | |
981 | #define ihex_bfd_gc_sections bfd_generic_gc_sections | |
8550eb6e | 982 | #define ihex_bfd_merge_sections bfd_generic_merge_sections |
e61463e1 | 983 | #define ihex_bfd_discard_group bfd_generic_discard_group |
252b5132 | 984 | #define ihex_bfd_link_hash_table_create _bfd_generic_link_hash_table_create |
e2d34d7d | 985 | #define ihex_bfd_link_hash_table_free _bfd_generic_link_hash_table_free |
252b5132 | 986 | #define ihex_bfd_link_add_symbols _bfd_generic_link_add_symbols |
2d653fc7 | 987 | #define ihex_bfd_link_just_syms _bfd_generic_link_just_syms |
252b5132 RH |
988 | #define ihex_bfd_final_link _bfd_generic_final_link |
989 | #define ihex_bfd_link_split_section _bfd_generic_link_split_section | |
990 | ||
991 | /* The Intel Hex target vector. */ | |
992 | ||
993 | const bfd_target ihex_vec = | |
994 | { | |
995 | "ihex", /* name */ | |
996 | bfd_target_ihex_flavour, | |
997 | BFD_ENDIAN_UNKNOWN, /* target byte order */ | |
998 | BFD_ENDIAN_UNKNOWN, /* target headers byte order */ | |
999 | 0, /* object flags */ | |
1000 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD), /* section flags */ | |
1001 | 0, /* leading underscore */ | |
1002 | ' ', /* ar_pad_char */ | |
1003 | 16, /* ar_max_namelen */ | |
1004 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
1005 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
1006 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
1007 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
1008 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
1009 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
1010 | ||
1011 | { | |
1012 | _bfd_dummy_target, | |
1013 | ihex_object_p, /* bfd_check_format */ | |
1014 | _bfd_dummy_target, | |
1015 | _bfd_dummy_target, | |
1016 | }, | |
1017 | { | |
1018 | bfd_false, | |
1019 | ihex_mkobject, | |
1020 | _bfd_generic_mkarchive, | |
1021 | bfd_false, | |
1022 | }, | |
1023 | { /* bfd_write_contents */ | |
1024 | bfd_false, | |
1025 | ihex_write_object_contents, | |
1026 | _bfd_write_archive_contents, | |
1027 | bfd_false, | |
1028 | }, | |
1029 | ||
1030 | BFD_JUMP_TABLE_GENERIC (ihex), | |
1031 | BFD_JUMP_TABLE_COPY (_bfd_generic), | |
1032 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
1033 | BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), | |
1034 | BFD_JUMP_TABLE_SYMBOLS (ihex), | |
1035 | BFD_JUMP_TABLE_RELOCS (ihex), | |
1036 | BFD_JUMP_TABLE_WRITE (ihex), | |
1037 | BFD_JUMP_TABLE_LINK (ihex), | |
1038 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
1039 | ||
c3c89269 | 1040 | NULL, |
dc810e39 | 1041 | |
252b5132 RH |
1042 | (PTR) 0 |
1043 | }; |