1 /* BFD backend for Extended Tektronix Hex Format objects. 2 Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003 3 Free Software Foundation, Inc. 4 Written by Steve Chamberlain of Cygnus Support <sac@cygnus.com>. 5 6 This file is part of BFD, the Binary File Descriptor library. 7 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. 12 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. 17 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. */ 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 70 #include "bfd.h" 71 #include "sysdep.h" 72 #include "libbfd.h" 73 #include "libiberty.h" 74 75 typedef struct 76 { 77 bfd_vma low; 78 bfd_vma high; 79 } addr_range_type; 80 81 typedef struct tekhex_symbol_struct 82 { 83 84 asymbol symbol; 85 struct tekhex_symbol_struct *prev; 86 87 } tekhex_symbol_type; 88 89 static const char digs[] = "0123456789ABCDEF"; 90 91 static char sum_block[256]; 92 93 #define NOT_HEX 20 94 #define NIBBLE(x) hex_value(x) 95 #define HEX(buffer) ((NIBBLE((buffer)[0])<<4) + NIBBLE((buffer)[1])) 96 #define TOHEX(d,x) \ 97 (d)[1] = digs[(x) & 0xf]; \ 98 (d)[0] = digs[((x)>>4)&0xf]; 99 #define ISHEX(x) hex_p(x) 100 101 static void tekhex_init PARAMS ((void)); 102 static bfd_boolean getvalue PARAMS ((char **, bfd_vma *)); 103 static void tekhex_print_symbol 104 PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type)); 105 static void tekhex_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *)); 106 static asymbol *tekhex_make_empty_symbol PARAMS ((bfd *)); 107 static int tekhex_sizeof_headers PARAMS ((bfd *, bfd_boolean)); 108 static bfd_boolean tekhex_write_object_contents PARAMS ((bfd *)); 109 static void out PARAMS ((bfd *, int, char *, char *)); 110 static void writesym PARAMS ((char **, const char *)); 111 static void writevalue PARAMS ((char **, bfd_vma)); 112 static bfd_boolean tekhex_set_section_contents 113 PARAMS ((bfd*, sec_ptr, const PTR, file_ptr, bfd_size_type)); 114 static bfd_boolean tekhex_set_arch_mach 115 PARAMS ((bfd *, enum bfd_architecture, unsigned long)); 116 static bfd_boolean tekhex_get_section_contents 117 PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type)); 118 static void move_section_contents 119 PARAMS ((bfd *, asection *, const PTR, file_ptr, bfd_size_type, bfd_boolean)); 120 static const bfd_target *tekhex_object_p PARAMS ((bfd *)); 121 static bfd_boolean tekhex_mkobject PARAMS ((bfd *)); 122 static long tekhex_get_symtab_upper_bound PARAMS ((bfd *)); 123 static long tekhex_canonicalize_symtab PARAMS ((bfd *, asymbol **)); 124 static bfd_boolean pass_over PARAMS ((bfd *, bfd_boolean (*) (bfd*, int, char *))); 125 static bfd_boolean first_phase PARAMS ((bfd *, int, char *)); 126 static void insert_byte PARAMS ((bfd *, int, bfd_vma)); 127 static struct data_struct *find_chunk PARAMS ((bfd *, bfd_vma)); 128 static bfd_boolean getsym PARAMS ((char *, char **, unsigned int *)); 129 130 /* 131 Here's an example 132 %3A6C6480004E56FFFC4E717063B0AEFFFC6D0652AEFFFC60F24E5E4E75 133 %1B3709T_SEGMENT1108FFFFFFFF 134 %2B3AB9T_SEGMENT7Dgcc_compiled$1087hello$c10 135 %373829T_SEGMENT80int$t1$r1$$214741080char$t2$r2$0$12710 136 %373769T_SEGMENT80long$int$t3$r1$$1080unsigned$int$t4$10 137 %373CA9T_SEGMENT80long$unsigned$in1080short$int$t6$r1$10 138 %373049T_SEGMENT80long$long$int$t71080short$unsigned$i10 139 %373A29T_SEGMENT80long$long$unsign1080signed$char$t10$10 140 %373D69T_SEGMENT80unsigned$char$t11080float$t12$r1$4$010 141 %373D19T_SEGMENT80double$t13$r1$8$1080long$double$t14$10 142 %2734D9T_SEGMENT8Bvoid$t15$151035_main10 143 %2F3CA9T_SEGMENT81$1081$1681$1E81$21487main$F110 144 %2832F9T_SEGMENT83i$18FFFFFFFC81$1481$214 145 %07 8 10 10 146 147 explanation: 148 %3A6C6480004E56FFFC4E717063B0AEFFFC6D0652AEFFFC60F24E5E4E75 149 ^ ^^ ^ ^-data 150 | || +------ 4 char integer 0x8000 151 | |+-------- checksum 152 | +--------- type 6 (data record) 153 +----------- length 3a chars 154 <---------------------- 3a (58 chars) -------------------> 155 156 %1B3709T_SEGMENT1108FFFFFFFF 157 ^ ^^ ^- 8 character integer 0xffffffff 158 | |+- 1 character integer 0 159 | +-- type 1 symbol (section definition) 160 +------------ 9 char symbol T_SEGMENT 161 162 %2B3AB9T_SEGMENT7Dgcc_compiled$1087hello$c10 163 %373829T_SEGMENT80int$t1$r1$$214741080char$t2$r2$0$12710 164 %373769T_SEGMENT80long$int$t3$r1$$1080unsigned$int$t4$10 165 %373CA9T_SEGMENT80long$unsigned$in1080short$int$t6$r1$10 166 %373049T_SEGMENT80long$long$int$t71080short$unsigned$i10 167 %373A29T_SEGMENT80long$long$unsign1080signed$char$t10$10 168 %373D69T_SEGMENT80unsigned$char$t11080float$t12$r1$4$010 169 %373D19T_SEGMENT80double$t13$r1$8$1080long$double$t14$10 170 %2734D9T_SEGMENT8Bvoid$t15$151035_main10 171 %2F3CA9T_SEGMENT81$1081$1681$1E81$21487main$F110 172 %2832F9T_SEGMENT83i$18FFFFFFFC81$1481$214 173 %0781010 174 175 Turns into 176 sac@thepub$ ./objdump -dx -m m68k f 177 178 f: file format tekhex 179 -----x--- 9/55728 -134219416 Sep 29 15:13 1995 f 180 architecture: UNKNOWN!, flags 0x00000010: 181 HAS_SYMS 182 start address 0x00000000 183 SECTION 0 [D00000000] : size 00020000 vma 00000000 align 2**0 184 ALLOC, LOAD 185 SECTION 1 [D00008000] : size 00002001 vma 00008000 align 2**0 186 187 SECTION 2 [T_SEGMENT] : size ffffffff vma 00000000 align 2**0 188 189 SYMBOL TABLE: 190 00000000 g T_SEGMENT gcc_compiled$ 191 00000000 g T_SEGMENT hello$c 192 00000000 g T_SEGMENT int$t1$r1$$21474 193 00000000 g T_SEGMENT char$t2$r2$0$127 194 00000000 g T_SEGMENT long$int$t3$r1$$ 195 00000000 g T_SEGMENT unsigned$int$t4$ 196 00000000 g T_SEGMENT long$unsigned$in 197 00000000 g T_SEGMENT short$int$t6$r1$ 198 00000000 g T_SEGMENT long$long$int$t7 199 00000000 g T_SEGMENT short$unsigned$i 200 00000000 g T_SEGMENT long$long$unsign 201 00000000 g T_SEGMENT signed$char$t10$ 202 00000000 g T_SEGMENT unsigned$char$t1 203 00000000 g T_SEGMENT float$t12$r1$4$0 204 00000000 g T_SEGMENT double$t13$r1$8$ 205 00000000 g T_SEGMENT long$double$t14$ 206 00000000 g T_SEGMENT void$t15$15 207 00000000 g T_SEGMENT _main 208 00000000 g T_SEGMENT $ 209 00000000 g T_SEGMENT $ 210 00000000 g T_SEGMENT $ 211 00000010 g T_SEGMENT $ 212 00000000 g T_SEGMENT main$F1 213 fcffffff g T_SEGMENT i$1 214 00000000 g T_SEGMENT $ 215 00000010 g T_SEGMENT $ 216 217 RELOCATION RECORDS FOR [D00000000]: (none) 218 219 RELOCATION RECORDS FOR [D00008000]: (none) 220 221 RELOCATION RECORDS FOR [T_SEGMENT]: (none) 222 223 Disassembly of section D00000000: 224 ... 225 00008000 ($+)7ff0 linkw fp,#-4 226 00008004 ($+)7ff4 nop 227 00008006 ($+)7ff6 movel #99,d0 228 00008008 ($+)7ff8 cmpl fp@(-4),d0 229 0000800c ($+)7ffc blts 00008014 ($+)8004 230 0000800e ($+)7ffe addql #1,fp@(-4) 231 00008012 ($+)8002 bras 00008006 ($+)7ff6 232 00008014 ($+)8004 unlk fp 233 00008016 ($+)8006 rts 234 ... 235 236 */ 237 238 static void 239 tekhex_init () 240 { 241 unsigned int i; 242 static bfd_boolean inited = FALSE; 243 int val; 244 245 if (! inited) 246 { 247 inited = TRUE; 248 hex_init (); 249 val = 0; 250 for (i = 0; i < 10; i++) 251 { 252 sum_block[i + '0'] = val++; 253 } 254 for (i = 'A'; i <= 'Z'; i++) 255 { 256 sum_block[i] = val++; 257 } 258 sum_block['$'] = val++; 259 sum_block['%'] = val++; 260 sum_block['.'] = val++; 261 sum_block['_'] = val++; 262 for (i = 'a'; i <= 'z'; i++) 263 { 264 sum_block[i] = val++; 265 } 266 } 267 } 268 269 /* The maximum number of bytes on a line is FF */ 270 #define MAXCHUNK 0xff 271 /* The number of bytes we fit onto a line on output */ 272 #define CHUNK 21 273 274 /* We cannot output our tekhexords as we see them, we have to glue them 275 together, this is done in this structure : */ 276 277 struct tekhex_data_list_struct 278 { 279 unsigned char *data; 280 bfd_vma where; 281 bfd_size_type size; 282 struct tekhex_data_list_struct *next; 283 284 }; 285 typedef struct tekhex_data_list_struct tekhex_data_list_type; 286 287 #define CHUNK_MASK 0x1fff 288 289 struct data_struct 290 { 291 char chunk_data[CHUNK_MASK + 1]; 292 char chunk_init[CHUNK_MASK + 1]; 293 bfd_vma vma; 294 struct data_struct *next; 295 }; 296 297 typedef struct tekhex_data_struct 298 { 299 tekhex_data_list_type *head; 300 unsigned int type; 301 struct tekhex_symbol_struct *symbols; 302 struct data_struct *data; 303 } tdata_type; 304 305 #define enda(x) (x->vma + x->size) 306 307 static bfd_boolean 308 getvalue (char **srcp, bfd_vma *valuep) 309 { 310 char *src = *srcp; 311 bfd_vma value = 0; 312 unsigned int len; 313 314 if (!ISHEX (*src)) 315 return FALSE; 316 317 len = hex_value(*src++); 318 319 if (len == 0) 320 len = 16; 321 while (len--) 322 { 323 if (!ISHEX (*src)) 324 return FALSE; 325 value = value << 4 | hex_value(*src++); 326 } 327 *srcp = src; 328 *valuep = value; 329 return TRUE; 330 } 331 332 static bfd_boolean 333 getsym (char *dstp, char **srcp, unsigned int *lenp) 334 { 335 char *src = *srcp; 336 unsigned int i; 337 unsigned int len; 338 339 if (!ISHEX (*src)) 340 return FALSE; 341 342 len = hex_value(*src++); 343 if (len == 0) 344 len = 16; 345 for (i = 0; i < len; i++) 346 dstp[i] = src[i]; 347 dstp[i] = 0; 348 *srcp = src + i; 349 *lenp = len; 350 return TRUE; 351 } 352 353 static struct data_struct * 354 find_chunk (abfd, vma) 355 bfd *abfd; 356 bfd_vma vma; 357 { 358 struct data_struct *d = abfd->tdata.tekhex_data->data; 359 360 vma &= ~CHUNK_MASK; 361 while (d && (d->vma) != vma) 362 { 363 d = d->next; 364 } 365 if (!d) 366 { 367 /* No chunk for this address, so make one up */ 368 d = ((struct data_struct *) 369 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct data_struct))); 370 371 if (!d) 372 return NULL; 373 374 d->next = abfd->tdata.tekhex_data->data; 375 d->vma = vma; 376 abfd->tdata.tekhex_data->data = d; 377 } 378 return d; 379 } 380 381 static void 382 insert_byte (abfd, value, addr) 383 bfd *abfd; 384 int value; 385 bfd_vma addr; 386 { 387 /* Find the chunk that this byte needs and put it in */ 388 struct data_struct *d = find_chunk (abfd, addr); 389 390 d->chunk_data[addr & CHUNK_MASK] = value; 391 d->chunk_init[addr & CHUNK_MASK] = 1; 392 } 393 394 /* The first pass is to find the names of all the sections, and see 395 how big the data is */ 396 static bfd_boolean 397 first_phase (abfd, type, src) 398 bfd *abfd; 399 int type; 400 char *src; 401 { 402 asection *section = bfd_abs_section_ptr; 403 unsigned int len; 404 bfd_vma val; 405 char sym[17]; /* A symbol can only be 16chars long */ 406 407 switch (type) 408 { 409 case '6': 410 /* Data record - read it and store it */ 411 { 412 bfd_vma addr; 413 414 if (!getvalue (&src, &addr)) 415 return FALSE; 416 417 while (*src) 418 { 419 insert_byte (abfd, HEX (src), addr); 420 src += 2; 421 addr++; 422 } 423 } 424 425 return TRUE; 426 case '3': 427 /* Symbol record, read the segment */ 428 if (!getsym (sym, &src, &len)) 429 return FALSE; 430 section = bfd_get_section_by_name (abfd, sym); 431 if (section == (asection *) NULL) 432 { 433 char *n = bfd_alloc (abfd, (bfd_size_type) len + 1); 434 435 if (!n) 436 return FALSE; 437 memcpy (n, sym, len + 1); 438 section = bfd_make_section (abfd, n); 439 } 440 while (*src) 441 { 442 switch (*src) 443 { 444 case '1': /* section range */ 445 src++; 446 if (!getvalue (&src, §ion->vma)) 447 return FALSE; 448 if (!getvalue (&src, &val)) 449 return FALSE; 450 section->_raw_size = val - section->vma; 451 section->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC; 452 break; 453 case '0': 454 case '2': 455 case '3': 456 case '4': 457 case '6': 458 case '7': 459 case '8': 460 /* Symbols, add to section */ 461 { 462 bfd_size_type amt = sizeof (tekhex_symbol_type); 463 tekhex_symbol_type *new = 464 (tekhex_symbol_type *) bfd_alloc (abfd, amt); 465 char stype = (*src); 466 467 if (!new) 468 return FALSE; 469 new->symbol.the_bfd = abfd; 470 src++; 471 abfd->symcount++; 472 abfd->flags |= HAS_SYMS; 473 new->prev = abfd->tdata.tekhex_data->symbols; 474 abfd->tdata.tekhex_data->symbols = new; 475 if (!getsym (sym, &src, &len)) 476 return FALSE; 477 new->symbol.name = bfd_alloc (abfd, (bfd_size_type) len + 1); 478 if (!new->symbol.name) 479 return FALSE; 480 memcpy ((char *) (new->symbol.name), sym, len + 1); 481 new->symbol.section = section; 482 if (stype <= '4') 483 new->symbol.flags = (BSF_GLOBAL | BSF_EXPORT); 484 else 485 new->symbol.flags = BSF_LOCAL; 486 if (!getvalue (&src, &val)) 487 return FALSE; 488 new->symbol.value = val - section->vma; 489 } 490 default: 491 return FALSE; 492 } 493 } 494 } 495 496 return TRUE; 497 } 498 499 /* Pass over a tekhex, calling one of the above functions on each 500 record. */ 501 502 static bfd_boolean 503 pass_over (abfd, func) 504 bfd *abfd; 505 bfd_boolean (*func) PARAMS ((bfd *, int, char *)); 506 { 507 unsigned int chars_on_line; 508 bfd_boolean eof = FALSE; 509 510 /* To the front of the file */ 511 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) 512 abort (); 513 while (! eof) 514 { 515 char buffer[MAXCHUNK]; 516 char *src = buffer; 517 char type; 518 519 /* Find first '%' */ 520 eof = (bfd_boolean) (bfd_bread (src, (bfd_size_type) 1, abfd) != 1); 521 while (*src != '%' && !eof) 522 { 523 eof = (bfd_boolean) (bfd_bread (src, (bfd_size_type) 1, abfd) != 1); 524 } 525 if (eof) 526 break; 527 src++; 528 529 /* Fetch the type and the length and the checksum */ 530 if (bfd_bread (src, (bfd_size_type) 5, abfd) != 5) 531 abort (); /* FIXME */ 532 533 type = src[2]; 534 535 if (!ISHEX (src[0]) || !ISHEX (src[1])) 536 break; 537 538 chars_on_line = HEX (src) - 5; /* Already read five char */ 539 540 if (bfd_bread (src, (bfd_size_type) chars_on_line, abfd) != chars_on_line) 541 abort (); /* FIXME */ 542 src[chars_on_line] = 0; /* put a null at the end */ 543 544 if (!func (abfd, type, src)) 545 return FALSE; 546 } 547 548 return TRUE; 549 } 550 551 static long 552 tekhex_canonicalize_symtab (abfd, table) 553 bfd *abfd; 554 asymbol **table; 555 { 556 tekhex_symbol_type *p = abfd->tdata.tekhex_data->symbols; 557 unsigned int c = bfd_get_symcount (abfd); 558 559 table[c] = 0; 560 while (p) 561 { 562 table[--c] = &(p->symbol); 563 p = p->prev; 564 } 565 566 return bfd_get_symcount (abfd); 567 } 568 569 static long 570 tekhex_get_symtab_upper_bound (abfd) 571 bfd *abfd; 572 { 573 return (abfd->symcount + 1) * (sizeof (struct tekhex_asymbol_struct *)); 574 575 } 576 577 static bfd_boolean 578 tekhex_mkobject (abfd) 579 bfd *abfd; 580 { 581 tdata_type *tdata; 582 583 tdata = (tdata_type *) bfd_alloc (abfd, (bfd_size_type) sizeof (tdata_type)); 584 if (!tdata) 585 return FALSE; 586 abfd->tdata.tekhex_data = tdata; 587 tdata->type = 1; 588 tdata->head = (tekhex_data_list_type *) NULL; 589 tdata->symbols = (struct tekhex_symbol_struct *) NULL; 590 tdata->data = (struct data_struct *) NULL; 591 return TRUE; 592 } 593 594 /* 595 Return TRUE if the file looks like it's in TekHex format. Just look 596 for a percent sign and some hex digits */ 597 598 static const bfd_target * 599 tekhex_object_p (abfd) 600 bfd *abfd; 601 { 602 char b[4]; 603 604 tekhex_init (); 605 606 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 607 || bfd_bread (b, (bfd_size_type) 4, abfd) != 4) 608 return NULL; 609 610 if (b[0] != '%' || !ISHEX (b[1]) || !ISHEX (b[2]) || !ISHEX (b[3])) 611 return (const bfd_target *) NULL; 612 613 tekhex_mkobject (abfd); 614 615 if (!pass_over (abfd, first_phase)) 616 return NULL; 617 618 return abfd->xvec; 619 } 620 621 static void 622 move_section_contents (abfd, section, locationp, offset, count, get) 623 bfd *abfd; 624 asection *section; 625 const PTR locationp; 626 file_ptr offset; 627 bfd_size_type count; 628 bfd_boolean get; 629 { 630 bfd_vma addr; 631 char *location = (char *) locationp; 632 bfd_vma prev_number = 1; /* Nothing can have this as a high bit*/ 633 struct data_struct *d = (struct data_struct *) NULL; 634 635 BFD_ASSERT (offset == 0); 636 for (addr = section->vma; count != 0; count--, addr++) 637 { 638 /* Get high bits of address. */ 639 bfd_vma chunk_number = addr & ~(bfd_vma) CHUNK_MASK; 640 bfd_vma low_bits = addr & CHUNK_MASK; 641 642 if (chunk_number != prev_number) 643 { 644 /* Different chunk, so move pointer */ 645 d = find_chunk (abfd, chunk_number); 646 } 647 648 if (get) 649 { 650 if (d->chunk_init[low_bits]) 651 { 652 *location = d->chunk_data[low_bits]; 653 } 654 else 655 { 656 *location = 0; 657 } 658 } 659 else 660 { 661 d->chunk_data[low_bits] = *location; 662 d->chunk_init[low_bits] = (*location != 0); 663 } 664 665 location++; 666 667 } 668 669 } 670 671 static bfd_boolean 672 tekhex_get_section_contents (abfd, section, locationp, offset, count) 673 bfd *abfd; 674 asection *section; 675 PTR locationp; 676 file_ptr offset; 677 bfd_size_type count; 678 { 679 if (section->flags & (SEC_LOAD | SEC_ALLOC)) 680 { 681 move_section_contents (abfd, section, locationp, offset, count, TRUE); 682 return TRUE; 683 } 684 else 685 return FALSE; 686 } 687 688 static bfd_boolean 689 tekhex_set_arch_mach (abfd, arch, machine) 690 bfd *abfd; 691 enum bfd_architecture arch; 692 unsigned long machine; 693 { 694 return bfd_default_set_arch_mach (abfd, arch, machine); 695 } 696 697 /* we have to save up all the Tekhexords for a splurge before output, 698 */ 699 700 static bfd_boolean 701 tekhex_set_section_contents (abfd, section, locationp, offset, bytes_to_do) 702 bfd *abfd; 703 sec_ptr section; 704 const PTR locationp; 705 file_ptr offset; 706 bfd_size_type bytes_to_do; 707 { 708 709 if (! abfd->output_has_begun) 710 { 711 /* The first time around, allocate enough sections to hold all the chunks */ 712 asection *s = abfd->sections; 713 bfd_vma vma; 714 715 for (s = abfd->sections; s; s = s->next) 716 { 717 if (s->flags & SEC_LOAD) 718 { 719 for (vma = s->vma & ~(bfd_vma) CHUNK_MASK; 720 vma < s->vma + s->_raw_size; 721 vma += CHUNK_MASK) 722 find_chunk (abfd, vma); 723 } 724 } 725 726 } 727 if (section->flags & (SEC_LOAD | SEC_ALLOC)) 728 { 729 move_section_contents (abfd, section, locationp, offset, bytes_to_do, 730 FALSE); 731 return TRUE; 732 } 733 else 734 return FALSE; 735 736 } 737 738 static void 739 writevalue (dst, value) 740 char **dst; 741 bfd_vma value; 742 { 743 char *p = *dst; 744 int len; 745 int shift; 746 747 for (len = 8, shift = 28; shift; shift -= 4, len--) 748 { 749 if ((value >> shift) & 0xf) 750 { 751 *p++ = len + '0'; 752 while (len) 753 { 754 *p++ = digs[(value >> shift) & 0xf]; 755 shift -= 4; 756 len--; 757 } 758 *dst = p; 759 return; 760 761 } 762 } 763 *p++ = '1'; 764 *p++ = '0'; 765 *dst = p; 766 } 767 768 static void 769 writesym (dst, sym) 770 char **dst; 771 const char *sym; 772 { 773 char *p = *dst; 774 int len = (sym ? strlen (sym) : 0); 775 776 if (len >= 16) 777 { 778 *p++ = '0'; 779 len = 16; 780 } 781 782 else 783 { 784 if (len == 0) 785 { 786 *p++ = '1'; 787 sym = "$"; 788 len = 1; 789 } 790 else 791 { 792 *p++ = digs[len]; 793 } 794 } 795 796 while (len--) 797 { 798 *p++ = *sym++; 799 } 800 *dst = p; 801 } 802 803 static void 804 out (abfd, type, start, end) 805 bfd *abfd; 806 int type; 807 char *start; 808 char *end; 809 { 810 int sum = 0; 811 char *s; 812 char front[6]; 813 bfd_size_type wrlen; 814 815 front[0] = '%'; 816 TOHEX (front + 1, end - start + 5); 817 front[3] = type; 818 819 for (s = start; s < end; s++) 820 { 821 sum += sum_block[(unsigned char) *s]; 822 } 823 824 sum += sum_block[(unsigned char) front[1]]; /* length */ 825 sum += sum_block[(unsigned char) front[2]]; 826 sum += sum_block[(unsigned char) front[3]]; /* type */ 827 TOHEX (front + 4, sum); 828 if (bfd_bwrite (front, (bfd_size_type) 6, abfd) != 6) 829 abort (); 830 end[0] = '\n'; 831 wrlen = end - start + 1; 832 if (bfd_bwrite (start, wrlen, abfd) != wrlen) 833 abort (); 834 } 835 836 static bfd_boolean 837 tekhex_write_object_contents (abfd) 838 bfd *abfd; 839 { 840 int bytes_written; 841 char buffer[100]; 842 asymbol **p; 843 asection *s; 844 struct data_struct *d; 845 846 tekhex_init (); 847 848 bytes_written = 0; 849 850 /* And the raw data */ 851 for (d = abfd->tdata.tekhex_data->data; 852 d != (struct data_struct *) NULL; 853 d = d->next) 854 { 855 int low; 856 857 const int span = 32; 858 int addr; 859 860 /* Write it in blocks of 32 bytes */ 861 862 for (addr = 0; addr < CHUNK_MASK + 1; addr += span) 863 { 864 int need = 0; 865 866 /* Check to see if necessary */ 867 for (low = 0; !need && low < span; low++) 868 { 869 if (d->chunk_init[addr + low]) 870 need = 1; 871 } 872 if (need) 873 { 874 char *dst = buffer; 875 876 writevalue (&dst, addr + d->vma); 877 for (low = 0; low < span; low++) 878 { 879 TOHEX (dst, d->chunk_data[addr + low]); 880 dst += 2; 881 } 882 out (abfd, '6', buffer, dst); 883 } 884 } 885 } 886 /* write all the section headers for the sections */ 887 for (s = abfd->sections; s != (asection *) NULL; s = s->next) 888 { 889 char *dst = buffer; 890 891 writesym (&dst, s->name); 892 *dst++ = '1'; 893 writevalue (&dst, s->vma); 894 writevalue (&dst, s->vma + s->_raw_size); 895 out (abfd, '3', buffer, dst); 896 } 897 898 /* And the symbols */ 899 if (abfd->outsymbols) 900 { 901 for (p = abfd->outsymbols; *p; p++) 902 { 903 int section_code = bfd_decode_symclass (*p); 904 905 if (section_code != '?') 906 { /* do not include debug symbols */ 907 asymbol *sym = *p; 908 char *dst = buffer; 909 910 writesym (&dst, sym->section->name); 911 912 switch (section_code) 913 { 914 case 'A': 915 *dst++ = '2'; 916 break; 917 case 'a': 918 *dst++ = '6'; 919 break; 920 case 'D': 921 case 'B': 922 case 'O': 923 *dst++ = '4'; 924 break; 925 case 'd': 926 case 'b': 927 case 'o': 928 *dst++ = '8'; 929 break; 930 case 'T': 931 *dst++ = '3'; 932 break; 933 case 't': 934 *dst++ = '7'; 935 break; 936 case 'C': 937 case 'U': 938 bfd_set_error (bfd_error_wrong_format); 939 return FALSE; 940 } 941 942 writesym (&dst, sym->name); 943 writevalue (&dst, sym->value + sym->section->vma); 944 out (abfd, '3', buffer, dst); 945 } 946 } 947 } 948 949 /* And the terminator */ 950 if (bfd_bwrite ("%0781010\n", (bfd_size_type) 9, abfd) != 9) 951 abort (); 952 return TRUE; 953 } 954 955 static int 956 tekhex_sizeof_headers (abfd, exec) 957 bfd *abfd ATTRIBUTE_UNUSED; 958 bfd_boolean exec ATTRIBUTE_UNUSED; 959 960 { 961 return 0; 962 } 963 964 static asymbol * 965 tekhex_make_empty_symbol (abfd) 966 bfd *abfd; 967 { 968 bfd_size_type amt = sizeof (struct tekhex_symbol_struct); 969 tekhex_symbol_type *new = (tekhex_symbol_type *) bfd_zalloc (abfd, amt); 970 971 if (!new) 972 return NULL; 973 new->symbol.the_bfd = abfd; 974 new->prev = (struct tekhex_symbol_struct *) NULL; 975 return &(new->symbol); 976 } 977 978 static void 979 tekhex_get_symbol_info (ignore_abfd, symbol, ret) 980 bfd *ignore_abfd ATTRIBUTE_UNUSED; 981 asymbol *symbol; 982 symbol_info *ret; 983 { 984 bfd_symbol_info (symbol, ret); 985 } 986 987 static void 988 tekhex_print_symbol (abfd, filep, symbol, how) 989 bfd *abfd; 990 PTR filep; 991 asymbol *symbol; 992 bfd_print_symbol_type how; 993 { 994 FILE *file = (FILE *) filep; 995 996 switch (how) 997 { 998 case bfd_print_symbol_name: 999 fprintf (file, "%s", symbol->name); 1000 break; 1001 case bfd_print_symbol_more: 1002 break; 1003 1004 case bfd_print_symbol_all: 1005 { 1006 const char *section_name = symbol->section->name; 1007 1008 bfd_print_symbol_vandf (abfd, (PTR) file, symbol); 1009 1010 fprintf (file, " %-5s %s", 1011 section_name, 1012 symbol->name); 1013 } 1014 } 1015 } 1016 1017 #define tekhex_close_and_cleanup _bfd_generic_close_and_cleanup 1018 #define tekhex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info 1019 #define tekhex_new_section_hook _bfd_generic_new_section_hook 1020 1021 #define tekhex_bfd_is_local_label_name bfd_generic_is_local_label_name 1022 #define tekhex_get_lineno _bfd_nosymbols_get_lineno 1023 #define tekhex_find_nearest_line _bfd_nosymbols_find_nearest_line 1024 #define tekhex_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol 1025 #define tekhex_read_minisymbols _bfd_generic_read_minisymbols 1026 #define tekhex_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol 1027 1028 #define tekhex_bfd_get_relocated_section_contents \ 1029 bfd_generic_get_relocated_section_contents 1030 #define tekhex_bfd_relax_section bfd_generic_relax_section 1031 #define tekhex_bfd_gc_sections bfd_generic_gc_sections 1032 #define tekhex_bfd_merge_sections bfd_generic_merge_sections 1033 #define tekhex_bfd_discard_group bfd_generic_discard_group 1034 #define tekhex_bfd_link_hash_table_create _bfd_generic_link_hash_table_create 1035 #define tekhex_bfd_link_hash_table_free _bfd_generic_link_hash_table_free 1036 #define tekhex_bfd_link_add_symbols _bfd_generic_link_add_symbols 1037 #define tekhex_bfd_link_just_syms _bfd_generic_link_just_syms 1038 #define tekhex_bfd_final_link _bfd_generic_final_link 1039 #define tekhex_bfd_link_split_section _bfd_generic_link_split_section 1040 1041 #define tekhex_get_section_contents_in_window \ 1042 _bfd_generic_get_section_contents_in_window 1043 1044 const bfd_target tekhex_vec = 1045 { 1046 "tekhex", /* name */ 1047 bfd_target_tekhex_flavour, 1048 BFD_ENDIAN_UNKNOWN, /* target byte order */ 1049 BFD_ENDIAN_UNKNOWN, /* target headers byte order */ 1050 (EXEC_P | /* object flags */ 1051 HAS_SYMS | HAS_LINENO | HAS_DEBUG | HAS_RELOC | HAS_LOCALS | 1052 WP_TEXT | D_PAGED), 1053 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS 1054 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ 1055 0, /* leading underscore */ 1056 ' ', /* ar_pad_char */ 1057 16, /* ar_max_namelen */ 1058 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 1059 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 1060 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ 1061 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 1062 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 1063 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ 1064 1065 { 1066 _bfd_dummy_target, 1067 tekhex_object_p, /* bfd_check_format */ 1068 _bfd_dummy_target, 1069 _bfd_dummy_target, 1070 }, 1071 { 1072 bfd_false, 1073 tekhex_mkobject, 1074 _bfd_generic_mkarchive, 1075 bfd_false, 1076 }, 1077 { /* bfd_write_contents */ 1078 bfd_false, 1079 tekhex_write_object_contents, 1080 _bfd_write_archive_contents, 1081 bfd_false, 1082 }, 1083 1084 BFD_JUMP_TABLE_GENERIC (tekhex), 1085 BFD_JUMP_TABLE_COPY (_bfd_generic), 1086 BFD_JUMP_TABLE_CORE (_bfd_nocore), 1087 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), 1088 BFD_JUMP_TABLE_SYMBOLS (tekhex), 1089 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), 1090 BFD_JUMP_TABLE_WRITE (tekhex), 1091 BFD_JUMP_TABLE_LINK (tekhex), 1092 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), 1093 1094 NULL, 1095 1096 (PTR) 0 1097 }; 1098