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[deliverable/binutils-gdb.git] / bfd / tekhex.c
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252b5132 1/* BFD backend for Extended Tektronix Hex Format objects.
72adc230
AM
2 Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002,
3 2003, 2004 Free Software Foundation, Inc.
252b5132
RH
4 Written by Steve Chamberlain of Cygnus Support <sac@cygnus.com>.
5
116c20d2 6 This file is part of BFD, the Binary File Descriptor library.
252b5132 7
116c20d2
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
116c20d2
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
116c20d2
NC
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
3e110533 20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
252b5132 21
116c20d2 22/* SUBSECTION
252b5132
RH
23 Tektronix Hex Format handling
24
116c20d2 25 DESCRIPTION
5bff4f56 26
252b5132
RH
27 Tek Hex records can hold symbols and data, but not
28 relocations. Their main application is communication with
29 devices like PROM programmers and ICE equipment.
5bff4f56 30
7dee875e 31 It seems that the sections are described as being really big,
252b5132
RH
32 the example I have says that the text section is 0..ffffffff.
33 BFD would barf with this, many apps would try to alloc 4GB to
34 read in the file.
35
36 Tex Hex may contain many sections, but the data which comes in
37 has no tag saying which section it belongs to, so we create
38 one section for each block of data, called "blknnnn" which we
39 stick all the data into.
40
41 TekHex may come out of order and there is no header, so an
42 initial scan is required to discover the minimum and maximum
43 addresses used to create the vma and size of the sections we
44 create.
45 We read in the data into pages of CHUNK_MASK+1 size and read
46 them out from that whenever we need to.
47
48 Any number of sections may be created for output, we save them
49 up and output them when it's time to close the bfd.
50
252b5132 51 A TekHex record looks like:
116c20d2 52 EXAMPLE
252b5132 53 %<block length><type><checksum><stuff><cr>
5bff4f56 54
116c20d2 55 DESCRIPTION
252b5132
RH
56 Where
57 o length
58 is the number of bytes in the record not including the % sign.
59 o type
60 is one of:
61 3) symbol record
62 6) data record
63 8) termination record
252b5132 64
116c20d2
NC
65 The data can come out of order, and may be discontigous. This is a
66 serial protocol, so big files are unlikely, so we keep a list of 8k chunks. */
252b5132
RH
67
68#include "bfd.h"
69#include "sysdep.h"
70#include "libbfd.h"
71#include "libiberty.h"
72
73typedef struct
116c20d2
NC
74{
75 bfd_vma low;
76 bfd_vma high;
77} addr_range_type;
252b5132
RH
78
79typedef struct tekhex_symbol_struct
116c20d2
NC
80{
81 asymbol symbol;
82 struct tekhex_symbol_struct *prev;
83} tekhex_symbol_type;
252b5132
RH
84
85static const char digs[] = "0123456789ABCDEF";
86
87static char sum_block[256];
88
116c20d2
NC
89#define NOT_HEX 20
90#define NIBBLE(x) hex_value(x)
91#define HEX(buffer) ((NIBBLE ((buffer)[0]) << 4) + NIBBLE ((buffer)[1]))
92#define ISHEX(x) hex_p(x)
93#define TOHEX(d, x) \
94 (d)[1] = digs[(x) & 0xf]; \
95 (d)[0] = digs[((x)>>4)&0xf];
96
97/* Here's an example
98 %3A6C6480004E56FFFC4E717063B0AEFFFC6D0652AEFFFC60F24E5E4E75
99 %1B3709T_SEGMENT1108FFFFFFFF
100 %2B3AB9T_SEGMENT7Dgcc_compiled$1087hello$c10
101 %373829T_SEGMENT80int$t1$r1$$214741080char$t2$r2$0$12710
102 %373769T_SEGMENT80long$int$t3$r1$$1080unsigned$int$t4$10
103 %373CA9T_SEGMENT80long$unsigned$in1080short$int$t6$r1$10
104 %373049T_SEGMENT80long$long$int$t71080short$unsigned$i10
105 %373A29T_SEGMENT80long$long$unsign1080signed$char$t10$10
106 %373D69T_SEGMENT80unsigned$char$t11080float$t12$r1$4$010
107 %373D19T_SEGMENT80double$t13$r1$8$1080long$double$t14$10
108 %2734D9T_SEGMENT8Bvoid$t15$151035_main10
109 %2F3CA9T_SEGMENT81$1081$1681$1E81$21487main$F110
110 %2832F9T_SEGMENT83i$18FFFFFFFC81$1481$214
111 %07 8 10 10
112
113 explanation:
114 %3A6C6480004E56FFFC4E717063B0AEFFFC6D0652AEFFFC60F24E5E4E75
115 ^ ^^ ^ ^-data
116 | || +------ 4 char integer 0x8000
117 | |+-------- checksum
118 | +--------- type 6 (data record)
119 +----------- length 3a chars
120 <---------------------- 3a (58 chars) ------------------->
121
122 %1B3709T_SEGMENT1108FFFFFFFF
123 ^ ^^ ^- 8 character integer 0xffffffff
124 | |+- 1 character integer 0
125 | +-- type 1 symbol (section definition)
126 +------------ 9 char symbol T_SEGMENT
127
128 %2B3AB9T_SEGMENT7Dgcc_compiled$1087hello$c10
129 %373829T_SEGMENT80int$t1$r1$$214741080char$t2$r2$0$12710
130 %373769T_SEGMENT80long$int$t3$r1$$1080unsigned$int$t4$10
131 %373CA9T_SEGMENT80long$unsigned$in1080short$int$t6$r1$10
132 %373049T_SEGMENT80long$long$int$t71080short$unsigned$i10
133 %373A29T_SEGMENT80long$long$unsign1080signed$char$t10$10
134 %373D69T_SEGMENT80unsigned$char$t11080float$t12$r1$4$010
135 %373D19T_SEGMENT80double$t13$r1$8$1080long$double$t14$10
136 %2734D9T_SEGMENT8Bvoid$t15$151035_main10
137 %2F3CA9T_SEGMENT81$1081$1681$1E81$21487main$F110
138 %2832F9T_SEGMENT83i$18FFFFFFFC81$1481$214
139 %0781010
140
141 Turns into
142 sac@thepub$ ./objdump -dx -m m68k f
143
144 f: file format tekhex
145 -----x--- 9/55728 -134219416 Sep 29 15:13 1995 f
146 architecture: UNKNOWN!, flags 0x00000010:
147 HAS_SYMS
148 start address 0x00000000
149 SECTION 0 [D00000000] : size 00020000 vma 00000000 align 2**0
150 ALLOC, LOAD
151 SECTION 1 [D00008000] : size 00002001 vma 00008000 align 2**0
152
153 SECTION 2 [T_SEGMENT] : size ffffffff vma 00000000 align 2**0
154
155 SYMBOL TABLE:
156 00000000 g T_SEGMENT gcc_compiled$
157 00000000 g T_SEGMENT hello$c
158 00000000 g T_SEGMENT int$t1$r1$$21474
159 00000000 g T_SEGMENT char$t2$r2$0$127
160 00000000 g T_SEGMENT long$int$t3$r1$$
161 00000000 g T_SEGMENT unsigned$int$t4$
162 00000000 g T_SEGMENT long$unsigned$in
163 00000000 g T_SEGMENT short$int$t6$r1$
164 00000000 g T_SEGMENT long$long$int$t7
165 00000000 g T_SEGMENT short$unsigned$i
166 00000000 g T_SEGMENT long$long$unsign
167 00000000 g T_SEGMENT signed$char$t10$
168 00000000 g T_SEGMENT unsigned$char$t1
169 00000000 g T_SEGMENT float$t12$r1$4$0
170 00000000 g T_SEGMENT double$t13$r1$8$
171 00000000 g T_SEGMENT long$double$t14$
172 00000000 g T_SEGMENT void$t15$15
173 00000000 g T_SEGMENT _main
174 00000000 g T_SEGMENT $
175 00000000 g T_SEGMENT $
176 00000000 g T_SEGMENT $
177 00000010 g T_SEGMENT $
178 00000000 g T_SEGMENT main$F1
179 fcffffff g T_SEGMENT i$1
180 00000000 g T_SEGMENT $
181 00000010 g T_SEGMENT $
182
183 RELOCATION RECORDS FOR [D00000000]: (none)
184
185 RELOCATION RECORDS FOR [D00008000]: (none)
186
187 RELOCATION RECORDS FOR [T_SEGMENT]: (none)
188
189 Disassembly of section D00000000:
190 ...
191 00008000 ($+)7ff0 linkw fp,#-4
192 00008004 ($+)7ff4 nop
193 00008006 ($+)7ff6 movel #99,d0
194 00008008 ($+)7ff8 cmpl fp@(-4),d0
195 0000800c ($+)7ffc blts 00008014 ($+)8004
196 0000800e ($+)7ffe addql #1,fp@(-4)
197 00008012 ($+)8002 bras 00008006 ($+)7ff6
198 00008014 ($+)8004 unlk fp
199 00008016 ($+)8006 rts
200 ... */
252b5132
RH
201
202static void
116c20d2 203tekhex_init (void)
252b5132
RH
204{
205 unsigned int i;
b34976b6 206 static bfd_boolean inited = FALSE;
252b5132
RH
207 int val;
208
82e51918 209 if (! inited)
252b5132 210 {
b34976b6 211 inited = TRUE;
252b5132
RH
212 hex_init ();
213 val = 0;
214 for (i = 0; i < 10; i++)
116c20d2
NC
215 sum_block[i + '0'] = val++;
216
252b5132 217 for (i = 'A'; i <= 'Z'; i++)
116c20d2
NC
218 sum_block[i] = val++;
219
252b5132
RH
220 sum_block['$'] = val++;
221 sum_block['%'] = val++;
222 sum_block['.'] = val++;
223 sum_block['_'] = val++;
224 for (i = 'a'; i <= 'z'; i++)
116c20d2 225 sum_block[i] = val++;
252b5132
RH
226 }
227}
228
116c20d2 229/* The maximum number of bytes on a line is FF. */
252b5132 230#define MAXCHUNK 0xff
116c20d2 231/* The number of bytes we fit onto a line on output. */
252b5132
RH
232#define CHUNK 21
233
234/* We cannot output our tekhexords as we see them, we have to glue them
235 together, this is done in this structure : */
236
237struct tekhex_data_list_struct
238{
239 unsigned char *data;
240 bfd_vma where;
241 bfd_size_type size;
242 struct tekhex_data_list_struct *next;
243
244};
245typedef struct tekhex_data_list_struct tekhex_data_list_type;
246
247#define CHUNK_MASK 0x1fff
248
249struct data_struct
116c20d2
NC
250{
251 char chunk_data[CHUNK_MASK + 1];
252 char chunk_init[CHUNK_MASK + 1];
253 bfd_vma vma;
254 struct data_struct *next;
255};
252b5132
RH
256
257typedef struct tekhex_data_struct
258{
259 tekhex_data_list_type *head;
260 unsigned int type;
261 struct tekhex_symbol_struct *symbols;
262 struct data_struct *data;
263} tdata_type;
264
265#define enda(x) (x->vma + x->size)
266
267static bfd_vma
116c20d2 268getvalue (char **srcp)
252b5132
RH
269{
270 char *src = *srcp;
271 bfd_vma value = 0;
272 unsigned int len = hex_value(*src++);
273
274 if (len == 0)
275 len = 16;
276 while (len--)
116c20d2
NC
277 value = value << 4 | hex_value(*src++);
278
252b5132
RH
279 *srcp = src;
280 return value;
281}
282
283static unsigned int
116c20d2 284getsym (char *dstp, char **srcp)
252b5132
RH
285{
286 char *src = *srcp;
287 unsigned int i;
288 unsigned int len = hex_value(*src++);
289
290 if (len == 0)
291 len = 16;
292 for (i = 0; i < len; i++)
293 dstp[i] = src[i];
294 dstp[i] = 0;
295 *srcp = src + i;
296 return len;
297}
298
299static struct data_struct *
116c20d2 300find_chunk (bfd *abfd, bfd_vma vma)
252b5132
RH
301{
302 struct data_struct *d = abfd->tdata.tekhex_data->data;
303
304 vma &= ~CHUNK_MASK;
305 while (d && (d->vma) != vma)
116c20d2
NC
306 d = d->next;
307
252b5132
RH
308 if (!d)
309 {
116c20d2
NC
310 /* No chunk for this address, so make one up. */
311 d = bfd_zalloc (abfd, (bfd_size_type) sizeof (struct data_struct));
252b5132 312
9bab7074 313 if (!d)
252b5132
RH
314 return NULL;
315
252b5132
RH
316 d->next = abfd->tdata.tekhex_data->data;
317 d->vma = vma;
318 abfd->tdata.tekhex_data->data = d;
319 }
320 return d;
321}
322
323static void
116c20d2 324insert_byte (bfd *abfd, int value, bfd_vma addr)
252b5132 325{
116c20d2 326 /* Find the chunk that this byte needs and put it in. */
252b5132
RH
327 struct data_struct *d = find_chunk (abfd, addr);
328
329 d->chunk_data[addr & CHUNK_MASK] = value;
330 d->chunk_init[addr & CHUNK_MASK] = 1;
331}
332
333/* The first pass is to find the names of all the sections, and see
116c20d2
NC
334 how big the data is. */
335
252b5132 336static void
116c20d2 337first_phase (bfd *abfd, int type, char *src)
252b5132
RH
338{
339 asection *section = bfd_abs_section_ptr;
dc810e39 340 unsigned int len;
116c20d2 341 char sym[17]; /* A symbol can only be 16chars long. */
252b5132
RH
342
343 switch (type)
344 {
345 case '6':
116c20d2 346 /* Data record - read it and store it. */
252b5132
RH
347 {
348 bfd_vma addr = getvalue (&src);
349
350 while (*src)
351 {
352 insert_byte (abfd, HEX (src), addr);
353 src += 2;
354 addr++;
355 }
356 }
357
358 return;
359 case '3':
116c20d2 360 /* Symbol record, read the segment. */
252b5132
RH
361 len = getsym (sym, &src);
362 section = bfd_get_section_by_name (abfd, sym);
116c20d2 363 if (section == NULL)
252b5132 364 {
dc810e39 365 char *n = bfd_alloc (abfd, (bfd_size_type) len + 1);
252b5132
RH
366
367 if (!n)
116c20d2 368 abort (); /* FIXME. */
252b5132
RH
369 memcpy (n, sym, len + 1);
370 section = bfd_make_section (abfd, n);
371 }
372 while (*src)
373 {
374 switch (*src)
375 {
116c20d2 376 case '1': /* Section range. */
252b5132
RH
377 src++;
378 section->vma = getvalue (&src);
eea6121a 379 section->size = getvalue (&src) - section->vma;
252b5132
RH
380 section->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC;
381 break;
382 case '0':
383 case '2':
384 case '3':
385 case '4':
386 case '6':
387 case '7':
388 case '8':
116c20d2 389 /* Symbols, add to section. */
252b5132 390 {
dc810e39 391 bfd_size_type amt = sizeof (tekhex_symbol_type);
116c20d2 392 tekhex_symbol_type *new = bfd_alloc (abfd, amt);
dc810e39 393 char stype = (*src);
252b5132
RH
394
395 if (!new)
116c20d2 396 abort (); /* FIXME. */
252b5132
RH
397 new->symbol.the_bfd = abfd;
398 src++;
399 abfd->symcount++;
400 abfd->flags |= HAS_SYMS;
401 new->prev = abfd->tdata.tekhex_data->symbols;
402 abfd->tdata.tekhex_data->symbols = new;
403 len = getsym (sym, &src);
dc810e39 404 new->symbol.name = bfd_alloc (abfd, (bfd_size_type) len + 1);
252b5132 405 if (!new->symbol.name)
116c20d2 406 abort (); /* FIXME. */
252b5132
RH
407 memcpy ((char *) (new->symbol.name), sym, len + 1);
408 new->symbol.section = section;
dc810e39 409 if (stype <= '4')
252b5132
RH
410 new->symbol.flags = (BSF_GLOBAL | BSF_EXPORT);
411 else
412 new->symbol.flags = BSF_LOCAL;
413 new->symbol.value = getvalue (&src) - section->vma;
414 }
415 }
416 }
417 }
418}
419
19852a2a 420/* Pass over a tekhex, calling one of the above functions on each
252b5132
RH
421 record. */
422
423static void
116c20d2 424pass_over (bfd *abfd, void (*func) (bfd *, int, char *))
252b5132
RH
425{
426 unsigned int chars_on_line;
b34976b6 427 bfd_boolean eof = FALSE;
252b5132 428
116c20d2 429 /* To the front of the file. */
252b5132
RH
430 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
431 abort ();
82e51918 432 while (! eof)
252b5132
RH
433 {
434 char buffer[MAXCHUNK];
435 char *src = buffer;
436 char type;
437
116c20d2 438 /* Find first '%'. */
b34976b6 439 eof = (bfd_boolean) (bfd_bread (src, (bfd_size_type) 1, abfd) != 1);
252b5132 440 while (*src != '%' && !eof)
116c20d2
NC
441 eof = (bfd_boolean) (bfd_bread (src, (bfd_size_type) 1, abfd) != 1);
442
252b5132
RH
443 if (eof)
444 break;
445 src++;
446
116c20d2 447 /* Fetch the type and the length and the checksum. */
dc810e39 448 if (bfd_bread (src, (bfd_size_type) 5, abfd) != 5)
116c20d2 449 abort (); /* FIXME. */
252b5132
RH
450
451 type = src[2];
452
453 if (!ISHEX (src[0]) || !ISHEX (src[1]))
454 break;
455
116c20d2
NC
456 /* Already read five char. */
457 chars_on_line = HEX (src) - 5;
252b5132 458
dc810e39 459 if (bfd_bread (src, (bfd_size_type) chars_on_line, abfd) != chars_on_line)
116c20d2
NC
460 abort (); /* FIXME. */
461
462 /* Put a null at the end. */
463 src[chars_on_line] = 0;
252b5132
RH
464
465 func (abfd, type, src);
466 }
252b5132
RH
467}
468
469static long
116c20d2 470tekhex_canonicalize_symtab (bfd *abfd, asymbol **table)
252b5132
RH
471{
472 tekhex_symbol_type *p = abfd->tdata.tekhex_data->symbols;
473 unsigned int c = bfd_get_symcount (abfd);
474
475 table[c] = 0;
476 while (p)
477 {
478 table[--c] = &(p->symbol);
479 p = p->prev;
480 }
481
482 return bfd_get_symcount (abfd);
483}
484
485static long
116c20d2 486tekhex_get_symtab_upper_bound (bfd *abfd)
252b5132
RH
487{
488 return (abfd->symcount + 1) * (sizeof (struct tekhex_asymbol_struct *));
489
490}
491
b34976b6 492static bfd_boolean
116c20d2 493tekhex_mkobject (bfd *abfd)
252b5132 494{
dc810e39 495 tdata_type *tdata;
252b5132 496
116c20d2 497 tdata = bfd_alloc (abfd, (bfd_size_type) sizeof (tdata_type));
252b5132 498 if (!tdata)
b34976b6 499 return FALSE;
252b5132
RH
500 abfd->tdata.tekhex_data = tdata;
501 tdata->type = 1;
116c20d2
NC
502 tdata->head = NULL;
503 tdata->symbols = NULL;
504 tdata->data = NULL;
b34976b6 505 return TRUE;
252b5132
RH
506}
507
116c20d2
NC
508/* Return TRUE if the file looks like it's in TekHex format. Just look
509 for a percent sign and some hex digits. */
252b5132
RH
510
511static const bfd_target *
116c20d2 512tekhex_object_p (bfd *abfd)
252b5132
RH
513{
514 char b[4];
515
516 tekhex_init ();
517
518 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
dc810e39 519 || bfd_bread (b, (bfd_size_type) 4, abfd) != 4)
252b5132
RH
520 return NULL;
521
522 if (b[0] != '%' || !ISHEX (b[1]) || !ISHEX (b[2]) || !ISHEX (b[3]))
116c20d2 523 return NULL;
252b5132
RH
524
525 tekhex_mkobject (abfd);
526
527 pass_over (abfd, first_phase);
528 return abfd->xvec;
529}
530
531static void
116c20d2
NC
532move_section_contents (bfd *abfd,
533 asection *section,
534 const void * locationp,
535 file_ptr offset,
536 bfd_size_type count,
537 bfd_boolean get)
252b5132
RH
538{
539 bfd_vma addr;
540 char *location = (char *) locationp;
116c20d2
NC
541 bfd_vma prev_number = 1; /* Nothing can have this as a high bit. */
542 struct data_struct *d = NULL;
252b5132 543
dc810e39 544 BFD_ASSERT (offset == 0);
252b5132
RH
545 for (addr = section->vma; count != 0; count--, addr++)
546 {
dc810e39
AM
547 /* Get high bits of address. */
548 bfd_vma chunk_number = addr & ~(bfd_vma) CHUNK_MASK;
252b5132
RH
549 bfd_vma low_bits = addr & CHUNK_MASK;
550
551 if (chunk_number != prev_number)
116c20d2
NC
552 /* Different chunk, so move pointer. */
553 d = find_chunk (abfd, chunk_number);
252b5132
RH
554
555 if (get)
556 {
557 if (d->chunk_init[low_bits])
116c20d2 558 *location = d->chunk_data[low_bits];
252b5132 559 else
116c20d2 560 *location = 0;
252b5132
RH
561 }
562 else
563 {
564 d->chunk_data[low_bits] = *location;
565 d->chunk_init[low_bits] = (*location != 0);
566 }
567
568 location++;
252b5132 569 }
252b5132
RH
570}
571
b34976b6 572static bfd_boolean
116c20d2
NC
573tekhex_get_section_contents (bfd *abfd,
574 asection *section,
575 void * locationp,
576 file_ptr offset,
577 bfd_size_type count)
252b5132
RH
578{
579 if (section->flags & (SEC_LOAD | SEC_ALLOC))
580 {
b34976b6
AM
581 move_section_contents (abfd, section, locationp, offset, count, TRUE);
582 return TRUE;
252b5132 583 }
116c20d2
NC
584
585 return FALSE;
252b5132
RH
586}
587
b34976b6 588static bfd_boolean
116c20d2
NC
589tekhex_set_arch_mach (bfd *abfd,
590 enum bfd_architecture arch,
591 unsigned long machine)
252b5132
RH
592{
593 return bfd_default_set_arch_mach (abfd, arch, machine);
594}
595
116c20d2 596/* We have to save up all the Tekhexords for a splurge before output. */
252b5132 597
b34976b6 598static bfd_boolean
116c20d2
NC
599tekhex_set_section_contents (bfd *abfd,
600 sec_ptr section,
601 const void * locationp,
602 file_ptr offset,
603 bfd_size_type bytes_to_do)
252b5132 604{
82e51918 605 if (! abfd->output_has_begun)
252b5132 606 {
116c20d2 607 /* The first time around, allocate enough sections to hold all the chunks. */
252b5132
RH
608 asection *s = abfd->sections;
609 bfd_vma vma;
610
611 for (s = abfd->sections; s; s = s->next)
612 {
613 if (s->flags & SEC_LOAD)
614 {
dc810e39 615 for (vma = s->vma & ~(bfd_vma) CHUNK_MASK;
eea6121a 616 vma < s->vma + s->size;
252b5132
RH
617 vma += CHUNK_MASK)
618 find_chunk (abfd, vma);
619 }
620 }
252b5132 621 }
116c20d2 622
252b5132
RH
623 if (section->flags & (SEC_LOAD | SEC_ALLOC))
624 {
dc810e39 625 move_section_contents (abfd, section, locationp, offset, bytes_to_do,
b34976b6
AM
626 FALSE);
627 return TRUE;
252b5132 628 }
252b5132 629
116c20d2 630 return FALSE;
252b5132
RH
631}
632
633static void
116c20d2 634writevalue (char **dst, bfd_vma value)
252b5132
RH
635{
636 char *p = *dst;
637 int len;
638 int shift;
639
640 for (len = 8, shift = 28; shift; shift -= 4, len--)
641 {
642 if ((value >> shift) & 0xf)
643 {
644 *p++ = len + '0';
645 while (len)
646 {
647 *p++ = digs[(value >> shift) & 0xf];
648 shift -= 4;
649 len--;
650 }
651 *dst = p;
652 return;
653
654 }
655 }
656 *p++ = '1';
657 *p++ = '0';
658 *dst = p;
659}
660
661static void
116c20d2 662writesym (char **dst, const char *sym)
252b5132
RH
663{
664 char *p = *dst;
665 int len = (sym ? strlen (sym) : 0);
666
667 if (len >= 16)
668 {
669 *p++ = '0';
670 len = 16;
671 }
252b5132
RH
672 else
673 {
674 if (len == 0)
675 {
676 *p++ = '1';
677 sym = "$";
678 len = 1;
679 }
680 else
116c20d2 681 *p++ = digs[len];
252b5132
RH
682 }
683
684 while (len--)
116c20d2
NC
685 *p++ = *sym++;
686
252b5132
RH
687 *dst = p;
688}
689
690static void
116c20d2 691out (bfd *abfd, int type, char *start, char *end)
252b5132
RH
692{
693 int sum = 0;
694 char *s;
695 char front[6];
696 bfd_size_type wrlen;
697
698 front[0] = '%';
699 TOHEX (front + 1, end - start + 5);
700 front[3] = type;
701
702 for (s = start; s < end; s++)
116c20d2 703 sum += sum_block[(unsigned char) *s];
252b5132 704
116c20d2 705 sum += sum_block[(unsigned char) front[1]]; /* Length. */
252b5132 706 sum += sum_block[(unsigned char) front[2]];
116c20d2 707 sum += sum_block[(unsigned char) front[3]]; /* Type. */
252b5132 708 TOHEX (front + 4, sum);
dc810e39 709 if (bfd_bwrite (front, (bfd_size_type) 6, abfd) != 6)
252b5132
RH
710 abort ();
711 end[0] = '\n';
712 wrlen = end - start + 1;
dc810e39 713 if (bfd_bwrite (start, wrlen, abfd) != wrlen)
252b5132
RH
714 abort ();
715}
716
b34976b6 717static bfd_boolean
116c20d2 718tekhex_write_object_contents (bfd *abfd)
252b5132
RH
719{
720 int bytes_written;
721 char buffer[100];
722 asymbol **p;
723 asection *s;
724 struct data_struct *d;
725
726 tekhex_init ();
727
728 bytes_written = 0;
729
116c20d2 730 /* And the raw data. */
252b5132 731 for (d = abfd->tdata.tekhex_data->data;
116c20d2 732 d != NULL;
252b5132
RH
733 d = d->next)
734 {
735 int low;
736
dc810e39 737 const int span = 32;
252b5132
RH
738 int addr;
739
116c20d2 740 /* Write it in blocks of 32 bytes. */
252b5132
RH
741 for (addr = 0; addr < CHUNK_MASK + 1; addr += span)
742 {
743 int need = 0;
744
116c20d2 745 /* Check to see if necessary. */
252b5132 746 for (low = 0; !need && low < span; low++)
116c20d2
NC
747 if (d->chunk_init[addr + low])
748 need = 1;
749
252b5132
RH
750 if (need)
751 {
752 char *dst = buffer;
753
754 writevalue (&dst, addr + d->vma);
755 for (low = 0; low < span; low++)
756 {
757 TOHEX (dst, d->chunk_data[addr + low]);
758 dst += 2;
759 }
760 out (abfd, '6', buffer, dst);
761 }
762 }
763 }
116c20d2
NC
764
765 /* Write all the section headers for the sections. */
766 for (s = abfd->sections; s != NULL; s = s->next)
252b5132
RH
767 {
768 char *dst = buffer;
769
770 writesym (&dst, s->name);
771 *dst++ = '1';
772 writevalue (&dst, s->vma);
eea6121a 773 writevalue (&dst, s->vma + s->size);
252b5132
RH
774 out (abfd, '3', buffer, dst);
775 }
776
116c20d2 777 /* And the symbols. */
252b5132
RH
778 if (abfd->outsymbols)
779 {
780 for (p = abfd->outsymbols; *p; p++)
781 {
782 int section_code = bfd_decode_symclass (*p);
783
784 if (section_code != '?')
116c20d2
NC
785 {
786 /* Do not include debug symbols. */
dc810e39 787 asymbol *sym = *p;
252b5132
RH
788 char *dst = buffer;
789
dc810e39 790 writesym (&dst, sym->section->name);
252b5132
RH
791
792 switch (section_code)
793 {
794 case 'A':
795 *dst++ = '2';
796 break;
797 case 'a':
798 *dst++ = '6';
799 break;
800 case 'D':
801 case 'B':
802 case 'O':
803 *dst++ = '4';
804 break;
805 case 'd':
806 case 'b':
807 case 'o':
808 *dst++ = '8';
809 break;
810 case 'T':
811 *dst++ = '3';
812 break;
813 case 't':
814 *dst++ = '7';
815 break;
816 case 'C':
817 case 'U':
818 bfd_set_error (bfd_error_wrong_format);
b34976b6 819 return FALSE;
252b5132
RH
820 }
821
dc810e39
AM
822 writesym (&dst, sym->name);
823 writevalue (&dst, sym->value + sym->section->vma);
252b5132
RH
824 out (abfd, '3', buffer, dst);
825 }
826 }
827 }
828
116c20d2 829 /* And the terminator. */
dc810e39 830 if (bfd_bwrite ("%0781010\n", (bfd_size_type) 9, abfd) != 9)
252b5132 831 abort ();
b34976b6 832 return TRUE;
252b5132
RH
833}
834
835static int
116c20d2
NC
836tekhex_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
837 bfd_boolean exec ATTRIBUTE_UNUSED)
252b5132
RH
838{
839 return 0;
840}
841
842static asymbol *
116c20d2 843tekhex_make_empty_symbol (bfd *abfd)
252b5132 844{
dc810e39 845 bfd_size_type amt = sizeof (struct tekhex_symbol_struct);
116c20d2 846 tekhex_symbol_type *new = bfd_zalloc (abfd, amt);
252b5132
RH
847
848 if (!new)
849 return NULL;
850 new->symbol.the_bfd = abfd;
116c20d2 851 new->prev = NULL;
252b5132
RH
852 return &(new->symbol);
853}
854
855static void
116c20d2
NC
856tekhex_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
857 asymbol *symbol,
858 symbol_info *ret)
252b5132
RH
859{
860 bfd_symbol_info (symbol, ret);
861}
862
863static void
116c20d2
NC
864tekhex_print_symbol (bfd *abfd,
865 void * filep,
866 asymbol *symbol,
867 bfd_print_symbol_type how)
252b5132
RH
868{
869 FILE *file = (FILE *) filep;
870
871 switch (how)
872 {
873 case bfd_print_symbol_name:
874 fprintf (file, "%s", symbol->name);
875 break;
876 case bfd_print_symbol_more:
877 break;
878
879 case bfd_print_symbol_all:
880 {
dc810e39 881 const char *section_name = symbol->section->name;
252b5132 882
116c20d2 883 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
252b5132
RH
884
885 fprintf (file, " %-5s %s",
116c20d2 886 section_name, symbol->name);
252b5132
RH
887 }
888 }
889}
890
116c20d2
NC
891#define tekhex_close_and_cleanup _bfd_generic_close_and_cleanup
892#define tekhex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
893#define tekhex_new_section_hook _bfd_generic_new_section_hook
3c9458e9 894#define tekhex_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
116c20d2
NC
895#define tekhex_bfd_is_local_label_name bfd_generic_is_local_label_name
896#define tekhex_get_lineno _bfd_nosymbols_get_lineno
897#define tekhex_find_nearest_line _bfd_nosymbols_find_nearest_line
4ab527b0 898#define tekhex_find_inliner_info _bfd_nosymbols_find_inliner_info
116c20d2
NC
899#define tekhex_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
900#define tekhex_read_minisymbols _bfd_generic_read_minisymbols
901#define tekhex_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
902#define tekhex_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
903#define tekhex_bfd_relax_section bfd_generic_relax_section
904#define tekhex_bfd_gc_sections bfd_generic_gc_sections
905#define tekhex_bfd_merge_sections bfd_generic_merge_sections
906#define tekhex_bfd_is_group_section bfd_generic_is_group_section
907#define tekhex_bfd_discard_group bfd_generic_discard_group
908#define tekhex_section_already_linked _bfd_generic_section_already_linked
909#define tekhex_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
910#define tekhex_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
911#define tekhex_bfd_link_add_symbols _bfd_generic_link_add_symbols
912#define tekhex_bfd_link_just_syms _bfd_generic_link_just_syms
913#define tekhex_bfd_final_link _bfd_generic_final_link
914#define tekhex_bfd_link_split_section _bfd_generic_link_split_section
915#define tekhex_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
252b5132
RH
916
917const bfd_target tekhex_vec =
918{
116c20d2 919 "tekhex", /* Name. */
252b5132 920 bfd_target_tekhex_flavour,
116c20d2
NC
921 BFD_ENDIAN_UNKNOWN, /* Target byte order. */
922 BFD_ENDIAN_UNKNOWN, /* Target headers byte order. */
923 (EXEC_P | /* Object flags. */
924 HAS_SYMS | HAS_LINENO | HAS_DEBUG |
925 HAS_RELOC | HAS_LOCALS | WP_TEXT | D_PAGED),
252b5132 926 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
116c20d2
NC
927 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */
928 0, /* Leading underscore. */
929 ' ', /* AR_pad_char. */
930 16, /* AR_max_namelen. */
252b5132
RH
931 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
932 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
116c20d2 933 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
252b5132
RH
934 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
935 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
116c20d2 936 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
252b5132
RH
937
938 {
939 _bfd_dummy_target,
116c20d2 940 tekhex_object_p, /* bfd_check_format. */
252b5132
RH
941 _bfd_dummy_target,
942 _bfd_dummy_target,
943 },
944 {
945 bfd_false,
946 tekhex_mkobject,
947 _bfd_generic_mkarchive,
948 bfd_false,
949 },
116c20d2 950 { /* bfd_write_contents. */
252b5132
RH
951 bfd_false,
952 tekhex_write_object_contents,
953 _bfd_write_archive_contents,
954 bfd_false,
955 },
956
957 BFD_JUMP_TABLE_GENERIC (tekhex),
958 BFD_JUMP_TABLE_COPY (_bfd_generic),
959 BFD_JUMP_TABLE_CORE (_bfd_nocore),
960 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
961 BFD_JUMP_TABLE_SYMBOLS (tekhex),
962 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
963 BFD_JUMP_TABLE_WRITE (tekhex),
964 BFD_JUMP_TABLE_LINK (tekhex),
965 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
966
c3c89269 967 NULL,
5bff4f56 968
116c20d2 969 NULL
252b5132 970};
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