1 /* BFD backend for Extended Tektronix Hex Format objects. 2 Copyright (C) 1992-2014 Free Software Foundation, Inc. 3 Written by Steve Chamberlain of Cygnus Support <sac (at) cygnus.com>. 4 5 This file is part of BFD, the Binary File Descriptor library. 6 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 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 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. 16 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 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22 23 /* SUBSECTION 24 Tektronix Hex Format handling 25 26 DESCRIPTION 27 28 Tek Hex records can hold symbols and data, but not 29 relocations. Their main application is communication with 30 devices like PROM programmers and ICE equipment. 31 32 It seems that the sections are described as being really big, 33 the example I have says that the text section is 0..ffffffff. 34 BFD would barf with this, many apps would try to alloc 4GB to 35 read in the file. 36 37 Tex Hex may contain many sections, but the data which comes in 38 has no tag saying which section it belongs to, so we create 39 one section for each block of data, called "blknnnn" which we 40 stick all the data into. 41 42 TekHex may come out of order and there is no header, so an 43 initial scan is required to discover the minimum and maximum 44 addresses used to create the vma and size of the sections we 45 create. 46 We read in the data into pages of CHUNK_MASK+1 size and read 47 them out from that whenever we need to. 48 49 Any number of sections may be created for output, we save them 50 up and output them when it's time to close the bfd. 51 52 A TekHex record looks like: 53 EXAMPLE 54 %<block length><type><checksum><stuff><cr> 55 56 DESCRIPTION 57 Where 58 o length 59 is the number of bytes in the record not including the % sign. 60 o type 61 is one of: 62 3) symbol record 63 6) data record 64 8) termination record 65 66 The data can come out of order, and may be discontigous. This is a 67 serial protocol, so big files are unlikely, so we keep a list of 8k chunks. */ 68 69 #include "sysdep.h" 70 #include "bfd.h" 71 #include "libbfd.h" 72 #include "libiberty.h" 73 74 typedef struct 75 { 76 bfd_vma low; 77 bfd_vma high; 78 } addr_range_type; 79 80 typedef struct tekhex_symbol_struct 81 { 82 asymbol symbol; 83 struct tekhex_symbol_struct *prev; 84 } tekhex_symbol_type; 85 86 static const char digs[] = "0123456789ABCDEF"; 87 88 static char sum_block[256]; 89 90 #define NOT_HEX 20 91 #define NIBBLE(x) hex_value(x) 92 #define HEX(buffer) ((NIBBLE ((buffer)[0]) << 4) + NIBBLE ((buffer)[1])) 93 #define ISHEX(x) hex_p(x) 94 #define TOHEX(d, x) \ 95 (d)[1] = digs[(x) & 0xf]; \ 96 (d)[0] = digs[((x)>>4)&0xf]; 97 98 /* Here's an example 99 %3A6C6480004E56FFFC4E717063B0AEFFFC6D0652AEFFFC60F24E5E4E75 100 %1B3709T_SEGMENT1108FFFFFFFF 101 %2B3AB9T_SEGMENT7Dgcc_compiled$1087hello$c10 102 %373829T_SEGMENT80int$t1$r1$$214741080char$t2$r2$0$12710 103 %373769T_SEGMENT80long$int$t3$r1$$1080unsigned$int$t4$10 104 %373CA9T_SEGMENT80long$unsigned$in1080short$int$t6$r1$10 105 %373049T_SEGMENT80long$long$int$t71080short$unsigned$i10 106 %373A29T_SEGMENT80long$long$unsign1080signed$char$t10$10 107 %373D69T_SEGMENT80unsigned$char$t11080float$t12$r1$4$010 108 %373D19T_SEGMENT80double$t13$r1$8$1080long$double$t14$10 109 %2734D9T_SEGMENT8Bvoid$t15$151035_main10 110 %2F3CA9T_SEGMENT81$1081$1681$1E81$21487main$F110 111 %2832F9T_SEGMENT83i$18FFFFFFFC81$1481$214 112 %07 8 10 10 113 114 explanation: 115 %3A6C6480004E56FFFC4E717063B0AEFFFC6D0652AEFFFC60F24E5E4E75 116 ^ ^^ ^ ^-data 117 | || +------ 4 char integer 0x8000 118 | |+-------- checksum 119 | +--------- type 6 (data record) 120 +----------- length 3a chars 121 <---------------------- 3a (58 chars) -------------------> 122 123 %1B3709T_SEGMENT1108FFFFFFFF 124 ^ ^^ ^- 8 character integer 0xffffffff 125 | |+- 1 character integer 0 126 | +-- type 1 symbol (section definition) 127 +------------ 9 char symbol T_SEGMENT 128 129 %2B3AB9T_SEGMENT7Dgcc_compiled$1087hello$c10 130 %373829T_SEGMENT80int$t1$r1$$214741080char$t2$r2$0$12710 131 %373769T_SEGMENT80long$int$t3$r1$$1080unsigned$int$t4$10 132 %373CA9T_SEGMENT80long$unsigned$in1080short$int$t6$r1$10 133 %373049T_SEGMENT80long$long$int$t71080short$unsigned$i10 134 %373A29T_SEGMENT80long$long$unsign1080signed$char$t10$10 135 %373D69T_SEGMENT80unsigned$char$t11080float$t12$r1$4$010 136 %373D19T_SEGMENT80double$t13$r1$8$1080long$double$t14$10 137 %2734D9T_SEGMENT8Bvoid$t15$151035_main10 138 %2F3CA9T_SEGMENT81$1081$1681$1E81$21487main$F110 139 %2832F9T_SEGMENT83i$18FFFFFFFC81$1481$214 140 %0781010 141 142 Turns into 143 sac@thepub$ ./objdump -dx -m m68k f 144 145 f: file format tekhex 146 -----x--- 9/55728 -134219416 Sep 29 15:13 1995 f 147 architecture: UNKNOWN!, flags 0x00000010: 148 HAS_SYMS 149 start address 0x00000000 150 SECTION 0 [D00000000] : size 00020000 vma 00000000 align 2**0 151 ALLOC, LOAD 152 SECTION 1 [D00008000] : size 00002001 vma 00008000 align 2**0 153 154 SECTION 2 [T_SEGMENT] : size ffffffff vma 00000000 align 2**0 155 156 SYMBOL TABLE: 157 00000000 g T_SEGMENT gcc_compiled$ 158 00000000 g T_SEGMENT hello$c 159 00000000 g T_SEGMENT int$t1$r1$$21474 160 00000000 g T_SEGMENT char$t2$r2$0$127 161 00000000 g T_SEGMENT long$int$t3$r1$$ 162 00000000 g T_SEGMENT unsigned$int$t4$ 163 00000000 g T_SEGMENT long$unsigned$in 164 00000000 g T_SEGMENT short$int$t6$r1$ 165 00000000 g T_SEGMENT long$long$int$t7 166 00000000 g T_SEGMENT short$unsigned$i 167 00000000 g T_SEGMENT long$long$unsign 168 00000000 g T_SEGMENT signed$char$t10$ 169 00000000 g T_SEGMENT unsigned$char$t1 170 00000000 g T_SEGMENT float$t12$r1$4$0 171 00000000 g T_SEGMENT double$t13$r1$8$ 172 00000000 g T_SEGMENT long$double$t14$ 173 00000000 g T_SEGMENT void$t15$15 174 00000000 g T_SEGMENT _main 175 00000000 g T_SEGMENT $ 176 00000000 g T_SEGMENT $ 177 00000000 g T_SEGMENT $ 178 00000010 g T_SEGMENT $ 179 00000000 g T_SEGMENT main$F1 180 fcffffff g T_SEGMENT i$1 181 00000000 g T_SEGMENT $ 182 00000010 g T_SEGMENT $ 183 184 RELOCATION RECORDS FOR [D00000000]: (none) 185 186 RELOCATION RECORDS FOR [D00008000]: (none) 187 188 RELOCATION RECORDS FOR [T_SEGMENT]: (none) 189 190 Disassembly of section D00000000: 191 ... 192 00008000 ($+)7ff0 linkw fp,#-4 193 00008004 ($+)7ff4 nop 194 00008006 ($+)7ff6 movel #99,d0 195 00008008 ($+)7ff8 cmpl fp@(-4),d0 196 0000800c ($+)7ffc blts 00008014 ($+)8004 197 0000800e ($+)7ffe addql #1,fp@(-4) 198 00008012 ($+)8002 bras 00008006 ($+)7ff6 199 00008014 ($+)8004 unlk fp 200 00008016 ($+)8006 rts 201 ... */ 202 203 static void 204 tekhex_init (void) 205 { 206 unsigned int i; 207 static bfd_boolean inited = FALSE; 208 int val; 209 210 if (! inited) 211 { 212 inited = TRUE; 213 hex_init (); 214 val = 0; 215 for (i = 0; i < 10; i++) 216 sum_block[i + '0'] = val++; 217 218 for (i = 'A'; i <= 'Z'; i++) 219 sum_block[i] = val++; 220 221 sum_block['$'] = val++; 222 sum_block['%'] = val++; 223 sum_block['.'] = val++; 224 sum_block['_'] = val++; 225 for (i = 'a'; i <= 'z'; i++) 226 sum_block[i] = val++; 227 } 228 } 229 230 /* The maximum number of bytes on a line is FF. */ 231 #define MAXCHUNK 0xff 232 /* The number of bytes we fit onto a line on output. */ 233 #define CHUNK 21 234 235 /* We cannot output our tekhexords as we see them, we have to glue them 236 together, this is done in this structure : */ 237 238 struct tekhex_data_list_struct 239 { 240 unsigned char *data; 241 bfd_vma where; 242 bfd_size_type size; 243 struct tekhex_data_list_struct *next; 244 245 }; 246 typedef struct tekhex_data_list_struct tekhex_data_list_type; 247 248 #define CHUNK_MASK 0x1fff 249 #define CHUNK_SPAN 32 250 251 struct data_struct 252 { 253 unsigned char chunk_data[CHUNK_MASK + 1]; 254 unsigned char chunk_init[(CHUNK_MASK + 1 + CHUNK_SPAN - 1) / CHUNK_SPAN]; 255 bfd_vma vma; 256 struct data_struct *next; 257 }; 258 259 typedef struct tekhex_data_struct 260 { 261 tekhex_data_list_type *head; 262 unsigned int type; 263 struct tekhex_symbol_struct *symbols; 264 struct data_struct *data; 265 } tdata_type; 266 267 #define enda(x) (x->vma + x->size) 268 269 static bfd_boolean 270 getvalue (char **srcp, bfd_vma *valuep) 271 { 272 char *src = *srcp; 273 bfd_vma value = 0; 274 unsigned int len; 275 276 if (!ISHEX (*src)) 277 return FALSE; 278 279 len = hex_value (*src++); 280 if (len == 0) 281 len = 16; 282 while (len--) 283 { 284 if (!ISHEX (*src)) 285 return FALSE; 286 value = value << 4 | hex_value (*src++); 287 } 288 289 *srcp = src; 290 *valuep = value; 291 return TRUE; 292 } 293 294 static bfd_boolean 295 getsym (char *dstp, char **srcp, unsigned int *lenp) 296 { 297 char *src = *srcp; 298 unsigned int i; 299 unsigned int len; 300 301 if (!ISHEX (*src)) 302 return FALSE; 303 304 len = hex_value (*src++); 305 if (len == 0) 306 len = 16; 307 for (i = 0; i < len; i++) 308 dstp[i] = src[i]; 309 dstp[i] = 0; 310 *srcp = src + i; 311 *lenp = len; 312 return TRUE; 313 } 314 315 static struct data_struct * 316 find_chunk (bfd *abfd, bfd_vma vma, bfd_boolean create) 317 { 318 struct data_struct *d = abfd->tdata.tekhex_data->data; 319 320 vma &= ~CHUNK_MASK; 321 while (d && (d->vma) != vma) 322 d = d->next; 323 324 if (!d && create) 325 { 326 /* No chunk for this address, so make one up. */ 327 d = (struct data_struct *) 328 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct data_struct)); 329 330 if (!d) 331 return NULL; 332 333 d->next = abfd->tdata.tekhex_data->data; 334 d->vma = vma; 335 abfd->tdata.tekhex_data->data = d; 336 } 337 return d; 338 } 339 340 static void 341 insert_byte (bfd *abfd, int value, bfd_vma addr) 342 { 343 if (value != 0) 344 { 345 /* Find the chunk that this byte needs and put it in. */ 346 struct data_struct *d = find_chunk (abfd, addr, TRUE); 347 348 d->chunk_data[addr & CHUNK_MASK] = value; 349 d->chunk_init[(addr & CHUNK_MASK) / CHUNK_SPAN] = 1; 350 } 351 } 352 353 /* The first pass is to find the names of all the sections, and see 354 how big the data is. */ 355 356 static bfd_boolean 357 first_phase (bfd *abfd, int type, char *src) 358 { 359 asection *section, *alt_section; 360 unsigned int len; 361 bfd_vma val; 362 char sym[17]; /* A symbol can only be 16chars long. */ 363 364 switch (type) 365 { 366 case '6': 367 /* Data record - read it and store it. */ 368 { 369 bfd_vma addr; 370 371 if (!getvalue (&src, &addr)) 372 return FALSE; 373 374 while (*src) 375 { 376 insert_byte (abfd, HEX (src), addr); 377 src += 2; 378 addr++; 379 } 380 } 381 382 return TRUE; 383 case '3': 384 /* Symbol record, read the segment. */ 385 if (!getsym (sym, &src, &len)) 386 return FALSE; 387 section = bfd_get_section_by_name (abfd, sym); 388 if (section == NULL) 389 { 390 char *n = (char *) bfd_alloc (abfd, (bfd_size_type) len + 1); 391 392 if (!n) 393 return FALSE; 394 memcpy (n, sym, len + 1); 395 section = bfd_make_section (abfd, n); 396 if (section == NULL) 397 return FALSE; 398 } 399 alt_section = NULL; 400 while (*src) 401 { 402 switch (*src) 403 { 404 case '1': /* Section range. */ 405 src++; 406 if (!getvalue (&src, §ion->vma)) 407 return FALSE; 408 if (!getvalue (&src, &val)) 409 return FALSE; 410 section->size = val - section->vma; 411 section->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC; 412 break; 413 case '0': 414 case '2': 415 case '3': 416 case '4': 417 case '6': 418 case '7': 419 case '8': 420 /* Symbols, add to section. */ 421 { 422 bfd_size_type amt = sizeof (tekhex_symbol_type); 423 tekhex_symbol_type *new_symbol = (tekhex_symbol_type *) 424 bfd_alloc (abfd, amt); 425 char stype = (*src); 426 427 if (!new_symbol) 428 return FALSE; 429 new_symbol->symbol.the_bfd = abfd; 430 src++; 431 abfd->symcount++; 432 abfd->flags |= HAS_SYMS; 433 new_symbol->prev = abfd->tdata.tekhex_data->symbols; 434 abfd->tdata.tekhex_data->symbols = new_symbol; 435 if (!getsym (sym, &src, &len)) 436 return FALSE; 437 new_symbol->symbol.name = (const char *) 438 bfd_alloc (abfd, (bfd_size_type) len + 1); 439 if (!new_symbol->symbol.name) 440 return FALSE; 441 memcpy ((char *) (new_symbol->symbol.name), sym, len + 1); 442 new_symbol->symbol.section = section; 443 if (stype <= '4') 444 new_symbol->symbol.flags = (BSF_GLOBAL | BSF_EXPORT); 445 else 446 new_symbol->symbol.flags = BSF_LOCAL; 447 if (stype == '2' || stype == '6') 448 new_symbol->symbol.section = bfd_abs_section_ptr; 449 else if (stype == '3' || stype == '7') 450 { 451 if ((section->flags & SEC_DATA) == 0) 452 section->flags |= SEC_CODE; 453 else 454 { 455 if (alt_section == NULL) 456 alt_section = bfd_get_next_section_by_name (section); 457 if (alt_section == NULL) 458 alt_section = bfd_make_section_anyway_with_flags 459 (abfd, section->name, 460 (section->flags & ~SEC_DATA) | SEC_CODE); 461 if (alt_section == NULL) 462 return FALSE; 463 new_symbol->symbol.section = alt_section; 464 } 465 } 466 else if (stype == '4' || stype == '8') 467 { 468 if ((section->flags & SEC_CODE) == 0) 469 section->flags |= SEC_DATA; 470 else 471 { 472 if (alt_section == NULL) 473 alt_section = bfd_get_next_section_by_name (section); 474 if (alt_section == NULL) 475 alt_section = bfd_make_section_anyway_with_flags 476 (abfd, section->name, 477 (section->flags & ~SEC_CODE) | SEC_DATA); 478 if (alt_section == NULL) 479 return FALSE; 480 new_symbol->symbol.section = alt_section; 481 } 482 } 483 if (!getvalue (&src, &val)) 484 return FALSE; 485 new_symbol->symbol.value = val - section->vma; 486 break; 487 } 488 default: 489 return FALSE; 490 } 491 } 492 } 493 494 return TRUE; 495 } 496 497 /* Pass over a tekhex, calling one of the above functions on each 498 record. */ 499 500 static bfd_boolean 501 pass_over (bfd *abfd, bfd_boolean (*func) (bfd *, int, char *)) 502 { 503 unsigned int chars_on_line; 504 bfd_boolean is_eof = FALSE; 505 506 /* To the front of the file. */ 507 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) 508 return FALSE; 509 while (! is_eof) 510 { 511 char src[MAXCHUNK]; 512 char type; 513 514 /* Find first '%'. */ 515 is_eof = (bfd_boolean) (bfd_bread (src, (bfd_size_type) 1, abfd) != 1); 516 while (*src != '%' && !is_eof) 517 is_eof = (bfd_boolean) (bfd_bread (src, (bfd_size_type) 1, abfd) != 1); 518 519 if (is_eof) 520 break; 521 522 /* Fetch the type and the length and the checksum. */ 523 if (bfd_bread (src, (bfd_size_type) 5, abfd) != 5) 524 return FALSE; 525 526 type = src[2]; 527 528 if (!ISHEX (src[0]) || !ISHEX (src[1])) 529 break; 530 531 /* Already read five chars. */ 532 chars_on_line = HEX (src) - 5; 533 534 if (chars_on_line >= MAXCHUNK) 535 return FALSE; 536 537 if (bfd_bread (src, (bfd_size_type) chars_on_line, abfd) != chars_on_line) 538 return FALSE; 539 540 /* Put a null at the end. */ 541 src[chars_on_line] = 0; 542 543 if (!func (abfd, type, src)) 544 return FALSE; 545 } 546 547 return TRUE; 548 } 549 550 static long 551 tekhex_canonicalize_symtab (bfd *abfd, asymbol **table) 552 { 553 tekhex_symbol_type *p = abfd->tdata.tekhex_data->symbols; 554 unsigned int c = bfd_get_symcount (abfd); 555 556 table[c] = 0; 557 while (p) 558 { 559 table[--c] = &(p->symbol); 560 p = p->prev; 561 } 562 563 return bfd_get_symcount (abfd); 564 } 565 566 static long 567 tekhex_get_symtab_upper_bound (bfd *abfd) 568 { 569 return (abfd->symcount + 1) * (sizeof (struct tekhex_asymbol_struct *)); 570 571 } 572 573 static bfd_boolean 574 tekhex_mkobject (bfd *abfd) 575 { 576 tdata_type *tdata; 577 578 tdata = (tdata_type *) bfd_alloc (abfd, (bfd_size_type) sizeof (tdata_type)); 579 if (!tdata) 580 return FALSE; 581 abfd->tdata.tekhex_data = tdata; 582 tdata->type = 1; 583 tdata->head = NULL; 584 tdata->symbols = NULL; 585 tdata->data = NULL; 586 return TRUE; 587 } 588 589 /* Return TRUE if the file looks like it's in TekHex format. Just look 590 for a percent sign and some hex digits. */ 591 592 static const bfd_target * 593 tekhex_object_p (bfd *abfd) 594 { 595 char b[4]; 596 597 tekhex_init (); 598 599 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 600 || bfd_bread (b, (bfd_size_type) 4, abfd) != 4) 601 return NULL; 602 603 if (b[0] != '%' || !ISHEX (b[1]) || !ISHEX (b[2]) || !ISHEX (b[3])) 604 return NULL; 605 606 tekhex_mkobject (abfd); 607 608 if (!pass_over (abfd, first_phase)) 609 return NULL; 610 611 return abfd->xvec; 612 } 613 614 static void 615 move_section_contents (bfd *abfd, 616 asection *section, 617 const void * locationp, 618 file_ptr offset, 619 bfd_size_type count, 620 bfd_boolean get) 621 { 622 bfd_vma addr; 623 char *location = (char *) locationp; 624 bfd_vma prev_number = 1; /* Nothing can have this as a high bit. */ 625 struct data_struct *d = NULL; 626 627 BFD_ASSERT (offset == 0); 628 for (addr = section->vma; count != 0; count--, addr++) 629 { 630 /* Get high bits of address. */ 631 bfd_vma chunk_number = addr & ~(bfd_vma) CHUNK_MASK; 632 bfd_vma low_bits = addr & CHUNK_MASK; 633 bfd_boolean must_write = !get && *location != 0; 634 635 if (chunk_number != prev_number || (!d && must_write)) 636 { 637 /* Different chunk, so move pointer. */ 638 d = find_chunk (abfd, chunk_number, must_write); 639 prev_number = chunk_number; 640 } 641 642 if (get) 643 { 644 if (d) 645 *location = d->chunk_data[low_bits]; 646 else 647 *location = 0; 648 } 649 else if (must_write) 650 { 651 d->chunk_data[low_bits] = *location; 652 d->chunk_init[low_bits / CHUNK_SPAN] = 1; 653 } 654 655 location++; 656 } 657 } 658 659 static bfd_boolean 660 tekhex_get_section_contents (bfd *abfd, 661 asection *section, 662 void * locationp, 663 file_ptr offset, 664 bfd_size_type count) 665 { 666 if (section->flags & (SEC_LOAD | SEC_ALLOC)) 667 { 668 move_section_contents (abfd, section, locationp, offset, count, TRUE); 669 return TRUE; 670 } 671 672 return FALSE; 673 } 674 675 static bfd_boolean 676 tekhex_set_arch_mach (bfd *abfd, 677 enum bfd_architecture arch, 678 unsigned long machine) 679 { 680 /* Ignore errors about unknown architecture. */ 681 return (bfd_default_set_arch_mach (abfd, arch, machine) 682 || arch == bfd_arch_unknown); 683 } 684 685 /* We have to save up all the Tekhexords for a splurge before output. */ 686 687 static bfd_boolean 688 tekhex_set_section_contents (bfd *abfd, 689 sec_ptr section, 690 const void * locationp, 691 file_ptr offset, 692 bfd_size_type bytes_to_do) 693 { 694 if (section->flags & (SEC_LOAD | SEC_ALLOC)) 695 { 696 move_section_contents (abfd, section, locationp, offset, bytes_to_do, 697 FALSE); 698 return TRUE; 699 } 700 701 return FALSE; 702 } 703 704 static void 705 writevalue (char **dst, bfd_vma value) 706 { 707 char *p = *dst; 708 int len; 709 int shift; 710 711 for (len = 8, shift = 28; shift; shift -= 4, len--) 712 { 713 if ((value >> shift) & 0xf) 714 { 715 *p++ = len + '0'; 716 while (len) 717 { 718 *p++ = digs[(value >> shift) & 0xf]; 719 shift -= 4; 720 len--; 721 } 722 *dst = p; 723 return; 724 725 } 726 } 727 *p++ = '1'; 728 *p++ = '0'; 729 *dst = p; 730 } 731 732 static void 733 writesym (char **dst, const char *sym) 734 { 735 char *p = *dst; 736 int len = (sym ? strlen (sym) : 0); 737 738 if (len >= 16) 739 { 740 *p++ = '0'; 741 len = 16; 742 } 743 else 744 { 745 if (len == 0) 746 { 747 *p++ = '1'; 748 sym = "$"; 749 len = 1; 750 } 751 else 752 *p++ = digs[len]; 753 } 754 755 while (len--) 756 *p++ = *sym++; 757 758 *dst = p; 759 } 760 761 static void 762 out (bfd *abfd, int type, char *start, char *end) 763 { 764 int sum = 0; 765 char *s; 766 char front[6]; 767 bfd_size_type wrlen; 768 769 front[0] = '%'; 770 TOHEX (front + 1, end - start + 5); 771 front[3] = type; 772 773 for (s = start; s < end; s++) 774 sum += sum_block[(unsigned char) *s]; 775 776 sum += sum_block[(unsigned char) front[1]]; /* Length. */ 777 sum += sum_block[(unsigned char) front[2]]; 778 sum += sum_block[(unsigned char) front[3]]; /* Type. */ 779 TOHEX (front + 4, sum); 780 if (bfd_bwrite (front, (bfd_size_type) 6, abfd) != 6) 781 abort (); 782 end[0] = '\n'; 783 wrlen = end - start + 1; 784 if (bfd_bwrite (start, wrlen, abfd) != wrlen) 785 abort (); 786 } 787 788 static bfd_boolean 789 tekhex_write_object_contents (bfd *abfd) 790 { 791 char buffer[100]; 792 asymbol **p; 793 asection *s; 794 struct data_struct *d; 795 796 tekhex_init (); 797 798 /* And the raw data. */ 799 for (d = abfd->tdata.tekhex_data->data; 800 d != NULL; 801 d = d->next) 802 { 803 int low; 804 int addr; 805 806 /* Write it in blocks of 32 bytes. */ 807 for (addr = 0; addr < CHUNK_MASK + 1; addr += CHUNK_SPAN) 808 { 809 if (d->chunk_init[addr / CHUNK_SPAN]) 810 { 811 char *dst = buffer; 812 813 writevalue (&dst, addr + d->vma); 814 for (low = 0; low < CHUNK_SPAN; low++) 815 { 816 TOHEX (dst, d->chunk_data[addr + low]); 817 dst += 2; 818 } 819 out (abfd, '6', buffer, dst); 820 } 821 } 822 } 823 824 /* Write all the section headers for the sections. */ 825 for (s = abfd->sections; s != NULL; s = s->next) 826 { 827 char *dst = buffer; 828 829 writesym (&dst, s->name); 830 *dst++ = '1'; 831 writevalue (&dst, s->vma); 832 writevalue (&dst, s->vma + s->size); 833 out (abfd, '3', buffer, dst); 834 } 835 836 /* And the symbols. */ 837 if (abfd->outsymbols) 838 { 839 for (p = abfd->outsymbols; *p; p++) 840 { 841 int section_code = bfd_decode_symclass (*p); 842 843 if (section_code != '?') 844 { 845 /* Do not include debug symbols. */ 846 asymbol *sym = *p; 847 char *dst = buffer; 848 849 writesym (&dst, sym->section->name); 850 851 switch (section_code) 852 { 853 case 'A': 854 *dst++ = '2'; 855 break; 856 case 'a': 857 *dst++ = '6'; 858 break; 859 case 'D': 860 case 'B': 861 case 'O': 862 *dst++ = '4'; 863 break; 864 case 'd': 865 case 'b': 866 case 'o': 867 *dst++ = '8'; 868 break; 869 case 'T': 870 *dst++ = '3'; 871 break; 872 case 't': 873 *dst++ = '7'; 874 break; 875 case 'C': 876 case 'U': 877 bfd_set_error (bfd_error_wrong_format); 878 return FALSE; 879 } 880 881 writesym (&dst, sym->name); 882 writevalue (&dst, sym->value + sym->section->vma); 883 out (abfd, '3', buffer, dst); 884 } 885 } 886 } 887 888 /* And the terminator. */ 889 if (bfd_bwrite ("%0781010\n", (bfd_size_type) 9, abfd) != 9) 890 abort (); 891 return TRUE; 892 } 893 894 static int 895 tekhex_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED, 896 struct bfd_link_info *info ATTRIBUTE_UNUSED) 897 { 898 return 0; 899 } 900 901 static asymbol * 902 tekhex_make_empty_symbol (bfd *abfd) 903 { 904 bfd_size_type amt = sizeof (struct tekhex_symbol_struct); 905 tekhex_symbol_type *new_symbol = (tekhex_symbol_type *) bfd_zalloc (abfd, 906 amt); 907 908 if (!new_symbol) 909 return NULL; 910 new_symbol->symbol.the_bfd = abfd; 911 new_symbol->prev = NULL; 912 return &(new_symbol->symbol); 913 } 914 915 static void 916 tekhex_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, 917 asymbol *symbol, 918 symbol_info *ret) 919 { 920 bfd_symbol_info (symbol, ret); 921 } 922 923 static void 924 tekhex_print_symbol (bfd *abfd, 925 void * filep, 926 asymbol *symbol, 927 bfd_print_symbol_type how) 928 { 929 FILE *file = (FILE *) filep; 930 931 switch (how) 932 { 933 case bfd_print_symbol_name: 934 fprintf (file, "%s", symbol->name); 935 break; 936 case bfd_print_symbol_more: 937 break; 938 939 case bfd_print_symbol_all: 940 { 941 const char *section_name = symbol->section->name; 942 943 bfd_print_symbol_vandf (abfd, (void *) file, symbol); 944 945 fprintf (file, " %-5s %s", 946 section_name, symbol->name); 947 } 948 } 949 } 950 951 #define tekhex_close_and_cleanup _bfd_generic_close_and_cleanup 952 #define tekhex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info 953 #define tekhex_new_section_hook _bfd_generic_new_section_hook 954 #define tekhex_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 955 #define tekhex_bfd_is_local_label_name bfd_generic_is_local_label_name 956 #define tekhex_get_lineno _bfd_nosymbols_get_lineno 957 #define tekhex_find_nearest_line _bfd_nosymbols_find_nearest_line 958 #define tekhex_find_line _bfd_nosymbols_find_line 959 #define tekhex_find_inliner_info _bfd_nosymbols_find_inliner_info 960 #define tekhex_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol 961 #define tekhex_read_minisymbols _bfd_generic_read_minisymbols 962 #define tekhex_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol 963 #define tekhex_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents 964 #define tekhex_bfd_relax_section bfd_generic_relax_section 965 #define tekhex_bfd_gc_sections bfd_generic_gc_sections 966 #define tekhex_bfd_lookup_section_flags bfd_generic_lookup_section_flags 967 #define tekhex_bfd_merge_sections bfd_generic_merge_sections 968 #define tekhex_bfd_is_group_section bfd_generic_is_group_section 969 #define tekhex_bfd_discard_group bfd_generic_discard_group 970 #define tekhex_section_already_linked _bfd_generic_section_already_linked 971 #define tekhex_bfd_define_common_symbol bfd_generic_define_common_symbol 972 #define tekhex_bfd_link_hash_table_create _bfd_generic_link_hash_table_create 973 #define tekhex_bfd_link_add_symbols _bfd_generic_link_add_symbols 974 #define tekhex_bfd_link_just_syms _bfd_generic_link_just_syms 975 #define tekhex_bfd_copy_link_hash_symbol_type \ 976 _bfd_generic_copy_link_hash_symbol_type 977 #define tekhex_bfd_final_link _bfd_generic_final_link 978 #define tekhex_bfd_link_split_section _bfd_generic_link_split_section 979 #define tekhex_get_section_contents_in_window _bfd_generic_get_section_contents_in_window 980 981 const bfd_target tekhex_vec = 982 { 983 "tekhex", /* Name. */ 984 bfd_target_tekhex_flavour, 985 BFD_ENDIAN_UNKNOWN, /* Target byte order. */ 986 BFD_ENDIAN_UNKNOWN, /* Target headers byte order. */ 987 (EXEC_P | /* Object flags. */ 988 HAS_SYMS | HAS_LINENO | HAS_DEBUG | 989 HAS_RELOC | HAS_LOCALS | WP_TEXT | D_PAGED), 990 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS 991 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */ 992 0, /* Leading underscore. */ 993 ' ', /* AR_pad_char. */ 994 16, /* AR_max_namelen. */ 995 0, /* match priority. */ 996 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 997 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 998 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */ 999 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 1000 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 1001 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */ 1002 1003 { 1004 _bfd_dummy_target, 1005 tekhex_object_p, /* bfd_check_format. */ 1006 _bfd_dummy_target, 1007 _bfd_dummy_target, 1008 }, 1009 { 1010 bfd_false, 1011 tekhex_mkobject, 1012 _bfd_generic_mkarchive, 1013 bfd_false, 1014 }, 1015 { /* bfd_write_contents. */ 1016 bfd_false, 1017 tekhex_write_object_contents, 1018 _bfd_write_archive_contents, 1019 bfd_false, 1020 }, 1021 1022 BFD_JUMP_TABLE_GENERIC (tekhex), 1023 BFD_JUMP_TABLE_COPY (_bfd_generic), 1024 BFD_JUMP_TABLE_CORE (_bfd_nocore), 1025 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), 1026 BFD_JUMP_TABLE_SYMBOLS (tekhex), 1027 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), 1028 BFD_JUMP_TABLE_WRITE (tekhex), 1029 BFD_JUMP_TABLE_LINK (tekhex), 1030 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), 1031 1032 NULL, 1033 1034 NULL 1035 }; 1036
