| 1 | /* BFD back-end for oasys objects. |
| 2 | Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc. |
| 3 | Written by Steve Chamberlain of Cygnus Support, <sac@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 2 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 20 | |
| 21 | #define UNDERSCORE_HACK 1 |
| 22 | #include "bfd.h" |
| 23 | #include "sysdep.h" |
| 24 | #include "libbfd.h" |
| 25 | #include "oasys.h" |
| 26 | #include "liboasys.h" |
| 27 | |
| 28 | /* XXX - FIXME. offsetof belongs in the system-specific files in |
| 29 | ../include/sys. */ |
| 30 | /* Define offsetof for those systems which lack it */ |
| 31 | |
| 32 | #ifndef offsetof |
| 33 | #define offsetof(type, identifier) (size_t) &(((type *) 0)->identifier) |
| 34 | #endif |
| 35 | |
| 36 | /* Read in all the section data and relocation stuff too */ |
| 37 | PROTO(static boolean,oasys_slurp_section_data,(bfd *CONST abfd)); |
| 38 | |
| 39 | static void |
| 40 | DEFUN(oasys_read_record,(abfd, record), |
| 41 | bfd *CONST abfd AND |
| 42 | oasys_record_union_type *record) |
| 43 | { |
| 44 | |
| 45 | bfd_read((PTR)record, 1, sizeof(record->header), abfd); |
| 46 | |
| 47 | if ((size_t) record->header.length <= (size_t) sizeof (record->header)) |
| 48 | return; |
| 49 | bfd_read((PTR)(((char *)record )+ sizeof(record->header)), |
| 50 | 1, record->header.length - sizeof(record->header), |
| 51 | abfd); |
| 52 | } |
| 53 | static size_t |
| 54 | DEFUN(oasys_string_length,(record), |
| 55 | oasys_record_union_type *record) |
| 56 | { |
| 57 | return record->header.length |
| 58 | - ((char *)record->symbol.name - (char *)record); |
| 59 | } |
| 60 | |
| 61 | /*****************************************************************************/ |
| 62 | |
| 63 | /* |
| 64 | |
| 65 | Slurp the symbol table by reading in all the records at the start file |
| 66 | till we get to the first section record. |
| 67 | |
| 68 | We'll sort the symbolss into two lists, defined and undefined. The |
| 69 | undefined symbols will be placed into the table according to their |
| 70 | refno. |
| 71 | |
| 72 | We do this by placing all undefined symbols at the front of the table |
| 73 | moving in, and the defined symbols at the end of the table moving back. |
| 74 | |
| 75 | */ |
| 76 | |
| 77 | static boolean |
| 78 | DEFUN(oasys_slurp_symbol_table,(abfd), |
| 79 | bfd * CONST abfd) |
| 80 | { |
| 81 | oasys_record_union_type record; |
| 82 | oasys_data_type *data = OASYS_DATA(abfd); |
| 83 | boolean loop = true; |
| 84 | asymbol *dest_defined; |
| 85 | asymbol *dest; |
| 86 | char *string_ptr; |
| 87 | |
| 88 | |
| 89 | if (data->symbols != (asymbol *)NULL) { |
| 90 | return true; |
| 91 | } |
| 92 | /* Buy enough memory for all the symbols and all the names */ |
| 93 | data->symbols = |
| 94 | (asymbol *)bfd_alloc(abfd, sizeof(asymbol) * abfd->symcount); |
| 95 | #ifdef UNDERSCORE_HACK |
| 96 | /* buy 1 more char for each symbol to keep the underscore in*/ |
| 97 | data->strings = bfd_alloc(abfd, data->symbol_string_length + |
| 98 | abfd->symcount); |
| 99 | #else |
| 100 | data->strings = bfd_alloc(abfd, data->symbol_string_length); |
| 101 | #endif |
| 102 | |
| 103 | |
| 104 | dest_defined = data->symbols + abfd->symcount -1; |
| 105 | |
| 106 | string_ptr = data->strings; |
| 107 | bfd_seek(abfd, (file_ptr)0, SEEK_SET); |
| 108 | while (loop) { |
| 109 | |
| 110 | oasys_read_record(abfd, &record); |
| 111 | switch (record.header.type) { |
| 112 | case oasys_record_is_header_enum: |
| 113 | break; |
| 114 | case oasys_record_is_local_enum: |
| 115 | case oasys_record_is_symbol_enum: |
| 116 | { |
| 117 | int flag = record.header.type == (int)oasys_record_is_local_enum ? |
| 118 | (BSF_LOCAL) : (BSF_GLOBAL | BSF_EXPORT); |
| 119 | |
| 120 | |
| 121 | size_t length = oasys_string_length(&record); |
| 122 | switch (record.symbol.relb & RELOCATION_TYPE_BITS) { |
| 123 | case RELOCATION_TYPE_ABS: |
| 124 | dest = dest_defined--; |
| 125 | dest->section = &bfd_abs_section; |
| 126 | dest->flags = 0; |
| 127 | |
| 128 | break; |
| 129 | case RELOCATION_TYPE_REL: |
| 130 | dest = dest_defined--; |
| 131 | dest->section = |
| 132 | OASYS_DATA(abfd)->sections[record.symbol.relb & |
| 133 | RELOCATION_SECT_BITS]; |
| 134 | if (record.header.type == (int)oasys_record_is_local_enum) |
| 135 | { |
| 136 | dest->flags = BSF_LOCAL; |
| 137 | if (dest->section ==(asection *)(~0)) { |
| 138 | /* It seems that sometimes internal symbols are tied up, but |
| 139 | still get output, even though there is no |
| 140 | section */ |
| 141 | dest->section = 0; |
| 142 | } |
| 143 | } |
| 144 | else { |
| 145 | |
| 146 | dest->flags = flag; |
| 147 | } |
| 148 | break; |
| 149 | case RELOCATION_TYPE_UND: |
| 150 | dest = data->symbols + bfd_h_get_16(abfd, record.symbol.refno); |
| 151 | dest->section = &bfd_und_section; |
| 152 | break; |
| 153 | case RELOCATION_TYPE_COM: |
| 154 | dest = dest_defined--; |
| 155 | dest->name = string_ptr; |
| 156 | dest->the_bfd = abfd; |
| 157 | |
| 158 | dest->section = &bfd_com_section; |
| 159 | |
| 160 | break; |
| 161 | default: |
| 162 | dest = dest_defined--; |
| 163 | BFD_ASSERT(0); |
| 164 | break; |
| 165 | } |
| 166 | dest->name = string_ptr; |
| 167 | dest->the_bfd = abfd; |
| 168 | dest->udata = (PTR)NULL; |
| 169 | dest->value = bfd_h_get_32(abfd, record.symbol.value); |
| 170 | |
| 171 | #ifdef UNDERSCORE_HACK |
| 172 | if (record.symbol.name[0] != '_') { |
| 173 | string_ptr[0] = '_'; |
| 174 | string_ptr++; |
| 175 | } |
| 176 | #endif |
| 177 | memcpy(string_ptr, record.symbol.name, length); |
| 178 | |
| 179 | |
| 180 | string_ptr[length] =0; |
| 181 | string_ptr += length +1; |
| 182 | } |
| 183 | break; |
| 184 | default: |
| 185 | loop = false; |
| 186 | } |
| 187 | } |
| 188 | return true; |
| 189 | } |
| 190 | |
| 191 | static unsigned int |
| 192 | DEFUN(oasys_get_symtab_upper_bound,(abfd), |
| 193 | bfd *CONST abfd) |
| 194 | { |
| 195 | oasys_slurp_symbol_table (abfd); |
| 196 | |
| 197 | return (abfd->symcount+1) * (sizeof (oasys_symbol_type *)); |
| 198 | } |
| 199 | |
| 200 | /* |
| 201 | */ |
| 202 | |
| 203 | extern bfd_target oasys_vec; |
| 204 | |
| 205 | unsigned int |
| 206 | DEFUN(oasys_get_symtab,(abfd, location), |
| 207 | bfd *abfd AND |
| 208 | asymbol **location) |
| 209 | { |
| 210 | asymbol *symbase ; |
| 211 | unsigned int counter ; |
| 212 | if (oasys_slurp_symbol_table(abfd) == false) { |
| 213 | return 0; |
| 214 | } |
| 215 | symbase = OASYS_DATA(abfd)->symbols; |
| 216 | for (counter = 0; counter < abfd->symcount; counter++) { |
| 217 | *(location++) = symbase++; |
| 218 | } |
| 219 | *location = 0; |
| 220 | return abfd->symcount; |
| 221 | } |
| 222 | |
| 223 | /*********************************************************************** |
| 224 | * archive stuff |
| 225 | */ |
| 226 | |
| 227 | static bfd_target * |
| 228 | DEFUN(oasys_archive_p,(abfd), |
| 229 | bfd *abfd) |
| 230 | { |
| 231 | oasys_archive_header_type header; |
| 232 | oasys_extarchive_header_type header_ext; |
| 233 | unsigned int i; |
| 234 | file_ptr filepos; |
| 235 | |
| 236 | bfd_seek(abfd, (file_ptr) 0, false); |
| 237 | bfd_read((PTR)&header_ext, 1, sizeof(header_ext), abfd); |
| 238 | |
| 239 | header.version = bfd_h_get_32(abfd, header_ext.version); |
| 240 | header.mod_count = bfd_h_get_32(abfd, header_ext.mod_count); |
| 241 | header.mod_tbl_offset = bfd_h_get_32(abfd, header_ext.mod_tbl_offset); |
| 242 | header.sym_tbl_size = bfd_h_get_32(abfd, header_ext.sym_tbl_size); |
| 243 | header.sym_count = bfd_h_get_32(abfd, header_ext.sym_count); |
| 244 | header.sym_tbl_offset = bfd_h_get_32(abfd, header_ext.sym_tbl_offset); |
| 245 | header.xref_count = bfd_h_get_32(abfd, header_ext.xref_count); |
| 246 | header.xref_lst_offset = bfd_h_get_32(abfd, header_ext.xref_lst_offset); |
| 247 | |
| 248 | /* |
| 249 | There isn't a magic number in an Oasys archive, so the best we |
| 250 | can do to verify reasnableness is to make sure that the values in |
| 251 | the header are too weird |
| 252 | */ |
| 253 | |
| 254 | if (header.version>10000 || |
| 255 | header.mod_count>10000 || |
| 256 | header.sym_count>100000 || |
| 257 | header.xref_count > 100000) return (bfd_target *)NULL; |
| 258 | |
| 259 | /* |
| 260 | That all worked, let's buy the space for the header and read in |
| 261 | the headers. |
| 262 | */ |
| 263 | { |
| 264 | oasys_ar_data_type *ar = |
| 265 | (oasys_ar_data_type*) bfd_alloc(abfd, sizeof(oasys_ar_data_type)); |
| 266 | |
| 267 | oasys_module_info_type *module = |
| 268 | (oasys_module_info_type*) |
| 269 | bfd_alloc(abfd, sizeof(oasys_module_info_type) * header.mod_count); |
| 270 | |
| 271 | oasys_module_table_type record; |
| 272 | |
| 273 | abfd->tdata.oasys_ar_data = ar; |
| 274 | ar->module = module; |
| 275 | ar->module_count = header.mod_count; |
| 276 | |
| 277 | filepos = header.mod_tbl_offset; |
| 278 | for (i = 0; i < header.mod_count; i++) { |
| 279 | bfd_seek(abfd, filepos, SEEK_SET); |
| 280 | |
| 281 | /* There are two ways of specifying the archive header */ |
| 282 | |
| 283 | if (0) { |
| 284 | oasys_extmodule_table_type_a_type record_ext; |
| 285 | bfd_read((PTR)&record_ext, 1, sizeof(record_ext), abfd); |
| 286 | |
| 287 | record.mod_size = bfd_h_get_32(abfd, record_ext.mod_size); |
| 288 | record.file_offset = bfd_h_get_32(abfd, record_ext.file_offset); |
| 289 | |
| 290 | record.dep_count = bfd_h_get_32(abfd, record_ext.dep_count); |
| 291 | record.depee_count = bfd_h_get_32(abfd, record_ext.depee_count); |
| 292 | record.sect_count = bfd_h_get_32(abfd, record_ext.sect_count); |
| 293 | |
| 294 | module[i].name = bfd_alloc(abfd,33); |
| 295 | |
| 296 | memcpy(module[i].name, record_ext.mod_name, 33); |
| 297 | filepos += |
| 298 | sizeof(record_ext) + |
| 299 | record.dep_count * 4 + |
| 300 | record.depee_count * 4 + |
| 301 | record.sect_count * 8 + 187; |
| 302 | } |
| 303 | else { |
| 304 | oasys_extmodule_table_type_b_type record_ext; |
| 305 | bfd_read((PTR)&record_ext, 1, sizeof(record_ext), abfd); |
| 306 | |
| 307 | record.mod_size = bfd_h_get_32(abfd, record_ext.mod_size); |
| 308 | record.file_offset = bfd_h_get_32(abfd, record_ext.file_offset); |
| 309 | |
| 310 | record.dep_count = bfd_h_get_32(abfd, record_ext.dep_count); |
| 311 | record.depee_count = bfd_h_get_32(abfd, record_ext.depee_count); |
| 312 | record.sect_count = bfd_h_get_32(abfd, record_ext.sect_count); |
| 313 | record.module_name_size = bfd_h_get_32(abfd, record_ext.mod_name_length); |
| 314 | |
| 315 | module[i].name = bfd_alloc(abfd,record.module_name_size + 1); |
| 316 | bfd_read((PTR)module[i].name, 1, record.module_name_size, abfd); |
| 317 | module[i].name[record.module_name_size] = 0; |
| 318 | filepos += |
| 319 | sizeof(record_ext) + |
| 320 | record.dep_count * 4 + |
| 321 | record.module_name_size + 1; |
| 322 | |
| 323 | } |
| 324 | |
| 325 | |
| 326 | module[i].size = record.mod_size; |
| 327 | module[i].pos = record.file_offset; |
| 328 | module[i].abfd = 0; |
| 329 | } |
| 330 | |
| 331 | } |
| 332 | return abfd->xvec; |
| 333 | } |
| 334 | |
| 335 | static boolean |
| 336 | DEFUN(oasys_mkobject,(abfd), |
| 337 | bfd *abfd) |
| 338 | { |
| 339 | |
| 340 | abfd->tdata.oasys_obj_data = (oasys_data_type*)bfd_alloc(abfd, sizeof(oasys_data_type)); |
| 341 | return true; |
| 342 | } |
| 343 | |
| 344 | #define MAX_SECS 16 |
| 345 | static bfd_target * |
| 346 | DEFUN(oasys_object_p,(abfd), |
| 347 | bfd *abfd) |
| 348 | { |
| 349 | oasys_data_type *oasys; |
| 350 | oasys_data_type *save = OASYS_DATA(abfd); |
| 351 | boolean loop = true; |
| 352 | boolean had_usefull = false; |
| 353 | |
| 354 | abfd->tdata.oasys_obj_data = 0; |
| 355 | oasys_mkobject(abfd); |
| 356 | oasys = OASYS_DATA(abfd); |
| 357 | memset((PTR)oasys->sections, 0xff, sizeof(oasys->sections)); |
| 358 | |
| 359 | /* Point to the start of the file */ |
| 360 | bfd_seek(abfd, (file_ptr)0, SEEK_SET); |
| 361 | oasys->symbol_string_length = 0; |
| 362 | /* Inspect the records, but only keep the section info - |
| 363 | remember the size of the symbols |
| 364 | */ |
| 365 | oasys->first_data_record = 0; |
| 366 | while (loop) { |
| 367 | oasys_record_union_type record; |
| 368 | oasys_read_record(abfd, &record); |
| 369 | if ((size_t)record.header.length < (size_t)sizeof(record.header)) |
| 370 | goto fail; |
| 371 | |
| 372 | |
| 373 | switch ((oasys_record_enum_type)(record.header.type)) { |
| 374 | case oasys_record_is_header_enum: |
| 375 | had_usefull = true; |
| 376 | break; |
| 377 | case oasys_record_is_symbol_enum: |
| 378 | case oasys_record_is_local_enum: |
| 379 | /* Count symbols and remember their size for a future malloc */ |
| 380 | abfd->symcount++; |
| 381 | oasys->symbol_string_length += 1 + oasys_string_length(&record); |
| 382 | had_usefull = true; |
| 383 | break; |
| 384 | case oasys_record_is_section_enum: |
| 385 | { |
| 386 | asection *s; |
| 387 | char *buffer; |
| 388 | unsigned int section_number; |
| 389 | if (record.section.header.length != sizeof(record.section)) |
| 390 | { |
| 391 | goto fail; |
| 392 | } |
| 393 | buffer = bfd_alloc(abfd, 3); |
| 394 | section_number= record.section.relb & RELOCATION_SECT_BITS; |
| 395 | sprintf(buffer,"%u", section_number); |
| 396 | s = bfd_make_section(abfd,buffer); |
| 397 | oasys->sections[section_number] = s; |
| 398 | switch (record.section.relb & RELOCATION_TYPE_BITS) { |
| 399 | case RELOCATION_TYPE_ABS: |
| 400 | case RELOCATION_TYPE_REL: |
| 401 | break; |
| 402 | case RELOCATION_TYPE_UND: |
| 403 | case RELOCATION_TYPE_COM: |
| 404 | BFD_FAIL(); |
| 405 | } |
| 406 | |
| 407 | s->_raw_size = bfd_h_get_32(abfd, record.section.value); |
| 408 | s->vma = bfd_h_get_32(abfd, record.section.vma); |
| 409 | s->flags= 0; |
| 410 | had_usefull = true; |
| 411 | } |
| 412 | break; |
| 413 | case oasys_record_is_data_enum: |
| 414 | oasys->first_data_record = bfd_tell(abfd) - record.header.length; |
| 415 | case oasys_record_is_debug_enum: |
| 416 | case oasys_record_is_module_enum: |
| 417 | case oasys_record_is_named_section_enum: |
| 418 | case oasys_record_is_end_enum: |
| 419 | if (had_usefull == false) goto fail; |
| 420 | loop = false; |
| 421 | break; |
| 422 | default: |
| 423 | goto fail; |
| 424 | } |
| 425 | } |
| 426 | oasys->symbols = (asymbol *)NULL; |
| 427 | /* |
| 428 | Oasys support several architectures, but I can't see a simple way |
| 429 | to discover which one is in a particular file - we'll guess |
| 430 | */ |
| 431 | bfd_default_set_arch_mach(abfd, bfd_arch_m68k, 0); |
| 432 | if (abfd->symcount != 0) { |
| 433 | abfd->flags |= HAS_SYMS; |
| 434 | } |
| 435 | |
| 436 | /* |
| 437 | We don't know if a section has data until we've read it.. |
| 438 | */ |
| 439 | |
| 440 | oasys_slurp_section_data(abfd); |
| 441 | |
| 442 | |
| 443 | return abfd->xvec; |
| 444 | |
| 445 | fail: |
| 446 | (void) bfd_release(abfd, oasys); |
| 447 | abfd->tdata.oasys_obj_data = save; |
| 448 | return (bfd_target *)NULL; |
| 449 | } |
| 450 | |
| 451 | |
| 452 | static void |
| 453 | DEFUN(oasys_get_symbol_info,(ignore_abfd, symbol, ret), |
| 454 | bfd *ignore_abfd AND |
| 455 | asymbol *symbol AND |
| 456 | symbol_info *ret) |
| 457 | { |
| 458 | bfd_symbol_info (symbol, ret); |
| 459 | if (!symbol->section) |
| 460 | ret->type = (symbol->flags & BSF_LOCAL) ? 'a' : 'A'; |
| 461 | } |
| 462 | |
| 463 | static void |
| 464 | DEFUN(oasys_print_symbol,(ignore_abfd, afile, symbol, how), |
| 465 | bfd *ignore_abfd AND |
| 466 | PTR afile AND |
| 467 | asymbol *symbol AND |
| 468 | bfd_print_symbol_type how) |
| 469 | { |
| 470 | FILE *file = (FILE *)afile; |
| 471 | |
| 472 | switch (how) { |
| 473 | case bfd_print_symbol_name: |
| 474 | case bfd_print_symbol_more: |
| 475 | fprintf(file,"%s", symbol->name); |
| 476 | break; |
| 477 | case bfd_print_symbol_all: |
| 478 | { |
| 479 | CONST char *section_name = symbol->section == (asection *)NULL ? |
| 480 | (CONST char *) "*abs" : symbol->section->name; |
| 481 | |
| 482 | bfd_print_symbol_vandf((PTR)file,symbol); |
| 483 | |
| 484 | fprintf(file," %-5s %s", |
| 485 | section_name, |
| 486 | symbol->name); |
| 487 | } |
| 488 | break; |
| 489 | } |
| 490 | } |
| 491 | /* |
| 492 | The howto table is build using the top two bits of a reloc byte to |
| 493 | index into it. The bits are PCREL,WORD/LONG |
| 494 | */ |
| 495 | static reloc_howto_type howto_table[]= |
| 496 | { |
| 497 | |
| 498 | HOWTO( 0, 0, 1, 16, false,0,complain_overflow_bitfield,0,"abs16",true,0x0000ffff, 0x0000ffff,false), |
| 499 | HOWTO( 0, 0, 2, 32, false,0,complain_overflow_bitfield,0,"abs32",true,0xffffffff, 0xffffffff,false), |
| 500 | HOWTO( 0, 0, 1, 16, true,0,complain_overflow_signed,0,"pcrel16",true,0x0000ffff, 0x0000ffff,false), |
| 501 | HOWTO( 0, 0, 2, 32, true,0,complain_overflow_signed,0,"pcrel32",true,0xffffffff, 0xffffffff,false) |
| 502 | }; |
| 503 | |
| 504 | /* Read in all the section data and relocation stuff too */ |
| 505 | static boolean |
| 506 | DEFUN(oasys_slurp_section_data,(abfd), |
| 507 | bfd *CONST abfd) |
| 508 | { |
| 509 | oasys_record_union_type record; |
| 510 | oasys_data_type *data = OASYS_DATA(abfd); |
| 511 | boolean loop = true; |
| 512 | |
| 513 | oasys_per_section_type *per ; |
| 514 | |
| 515 | asection *s; |
| 516 | |
| 517 | /* See if the data has been slurped already .. */ |
| 518 | for (s = abfd->sections; s != (asection *)NULL; s= s->next) { |
| 519 | per = oasys_per_section(s); |
| 520 | if (per->initialized == true) |
| 521 | return true; |
| 522 | } |
| 523 | |
| 524 | if (data->first_data_record == 0) return true; |
| 525 | |
| 526 | bfd_seek(abfd, data->first_data_record, SEEK_SET); |
| 527 | while (loop) { |
| 528 | oasys_read_record(abfd, &record); |
| 529 | switch (record.header.type) |
| 530 | { |
| 531 | case oasys_record_is_header_enum: |
| 532 | break; |
| 533 | case oasys_record_is_data_enum: |
| 534 | { |
| 535 | |
| 536 | bfd_byte *src = record.data.data; |
| 537 | bfd_byte *end_src = ((bfd_byte *)&record) + record.header.length; |
| 538 | bfd_byte *dst_ptr; |
| 539 | bfd_byte *dst_base_ptr; |
| 540 | unsigned int relbit; |
| 541 | unsigned int count; |
| 542 | asection * section = |
| 543 | data->sections[record.data.relb & RELOCATION_SECT_BITS]; |
| 544 | bfd_vma dst_offset ; |
| 545 | |
| 546 | per = oasys_per_section(section); |
| 547 | |
| 548 | if (per->initialized == false) |
| 549 | { |
| 550 | per->data = (bfd_byte *) bfd_zalloc(abfd, section->_raw_size); |
| 551 | per->reloc_tail_ptr = (oasys_reloc_type **)&(section->relocation); |
| 552 | per->had_vma = false; |
| 553 | per->initialized = true; |
| 554 | section->reloc_count = 0; |
| 555 | section->flags = SEC_ALLOC; |
| 556 | } |
| 557 | |
| 558 | dst_offset = bfd_h_get_32(abfd, record.data.addr) ; |
| 559 | if (per->had_vma == false) { |
| 560 | /* Take the first vma we see as the base */ |
| 561 | section->vma = dst_offset; |
| 562 | per->had_vma = true; |
| 563 | } |
| 564 | |
| 565 | dst_offset -= section->vma; |
| 566 | |
| 567 | dst_base_ptr = oasys_per_section(section)->data; |
| 568 | dst_ptr = oasys_per_section(section)->data + |
| 569 | dst_offset; |
| 570 | |
| 571 | if (src < end_src) { |
| 572 | section->flags |= SEC_LOAD | SEC_HAS_CONTENTS; |
| 573 | } |
| 574 | while (src < end_src) { |
| 575 | unsigned char mod_byte = *src++; |
| 576 | size_t gap = end_src - src; |
| 577 | |
| 578 | count = 8; |
| 579 | if (mod_byte == 0 && gap >= 8) { |
| 580 | dst_ptr[0] = src[0]; |
| 581 | dst_ptr[1] = src[1]; |
| 582 | dst_ptr[2] = src[2]; |
| 583 | dst_ptr[3] = src[3]; |
| 584 | dst_ptr[4] = src[4]; |
| 585 | dst_ptr[5] = src[5]; |
| 586 | dst_ptr[6] = src[6]; |
| 587 | dst_ptr[7] = src[7]; |
| 588 | dst_ptr+= 8; |
| 589 | src += 8; |
| 590 | } |
| 591 | else { |
| 592 | for (relbit = 1; count-- != 0 && src < end_src; relbit <<=1) |
| 593 | { |
| 594 | if (relbit & mod_byte) |
| 595 | { |
| 596 | unsigned char reloc = *src; |
| 597 | /* This item needs to be relocated */ |
| 598 | switch (reloc & RELOCATION_TYPE_BITS) { |
| 599 | case RELOCATION_TYPE_ABS: |
| 600 | |
| 601 | break; |
| 602 | |
| 603 | case RELOCATION_TYPE_REL: |
| 604 | { |
| 605 | /* Relocate the item relative to the section */ |
| 606 | oasys_reloc_type *r = |
| 607 | (oasys_reloc_type *) |
| 608 | bfd_alloc(abfd, |
| 609 | sizeof(oasys_reloc_type)); |
| 610 | *(per->reloc_tail_ptr) = r; |
| 611 | per->reloc_tail_ptr = &r->next; |
| 612 | r->next= (oasys_reloc_type *)NULL; |
| 613 | /* Reference to undefined symbol */ |
| 614 | src++; |
| 615 | /* There is no symbol */ |
| 616 | r->symbol = 0; |
| 617 | /* Work out the howto */ |
| 618 | abort(); |
| 619 | #if 0 |
| 620 | r->relent.section = |
| 621 | data->sections[reloc & |
| 622 | RELOCATION_SECT_BITS]; |
| 623 | |
| 624 | r->relent.addend = - |
| 625 | r->relent.section->vma; |
| 626 | #endif |
| 627 | r->relent.address = dst_ptr - dst_base_ptr; |
| 628 | r->relent.howto = &howto_table[reloc>>6]; |
| 629 | r->relent.sym_ptr_ptr = (asymbol **)NULL; |
| 630 | section->reloc_count++; |
| 631 | |
| 632 | /* Fake up the data to look like it's got the -ve pc in it, this makes |
| 633 | it much easier to convert into other formats. This is done by |
| 634 | hitting the addend. |
| 635 | */ |
| 636 | if (r->relent.howto->pc_relative == true) { |
| 637 | r->relent.addend -= dst_ptr - dst_base_ptr; |
| 638 | } |
| 639 | |
| 640 | |
| 641 | } |
| 642 | break; |
| 643 | |
| 644 | |
| 645 | case RELOCATION_TYPE_UND: |
| 646 | { |
| 647 | oasys_reloc_type *r = |
| 648 | (oasys_reloc_type *) |
| 649 | bfd_alloc(abfd, |
| 650 | sizeof(oasys_reloc_type)); |
| 651 | *(per->reloc_tail_ptr) = r; |
| 652 | per->reloc_tail_ptr = &r->next; |
| 653 | r->next= (oasys_reloc_type *)NULL; |
| 654 | /* Reference to undefined symbol */ |
| 655 | src++; |
| 656 | /* Get symbol number */ |
| 657 | r->symbol = (src[0]<<8) | src[1]; |
| 658 | /* Work out the howto */ |
| 659 | abort(); |
| 660 | |
| 661 | #if 0 |
| 662 | r->relent.section = (asection |
| 663 | *)NULL; |
| 664 | #endif |
| 665 | r->relent.addend = 0; |
| 666 | r->relent.address = dst_ptr - dst_base_ptr; |
| 667 | r->relent.howto = &howto_table[reloc>>6]; |
| 668 | r->relent.sym_ptr_ptr = (asymbol **)NULL; |
| 669 | section->reloc_count++; |
| 670 | |
| 671 | src+=2; |
| 672 | /* Fake up the data to look like it's got the -ve pc in it, this makes |
| 673 | it much easier to convert into other formats. This is done by |
| 674 | hitting the addend. |
| 675 | */ |
| 676 | if (r->relent.howto->pc_relative == true) { |
| 677 | r->relent.addend -= dst_ptr - dst_base_ptr; |
| 678 | } |
| 679 | |
| 680 | |
| 681 | |
| 682 | } |
| 683 | break; |
| 684 | case RELOCATION_TYPE_COM: |
| 685 | BFD_FAIL(); |
| 686 | } |
| 687 | } |
| 688 | *dst_ptr++ = *src++; |
| 689 | } |
| 690 | } |
| 691 | } |
| 692 | } |
| 693 | break; |
| 694 | case oasys_record_is_local_enum: |
| 695 | case oasys_record_is_symbol_enum: |
| 696 | case oasys_record_is_section_enum: |
| 697 | break; |
| 698 | default: |
| 699 | loop = false; |
| 700 | } |
| 701 | } |
| 702 | |
| 703 | return true; |
| 704 | |
| 705 | } |
| 706 | |
| 707 | |
| 708 | |
| 709 | extern bfd_error_vector_type bfd_error_vector; |
| 710 | |
| 711 | static boolean |
| 712 | DEFUN(oasys_new_section_hook,(abfd, newsect), |
| 713 | bfd *abfd AND |
| 714 | asection *newsect) |
| 715 | { |
| 716 | newsect->used_by_bfd = (PTR) |
| 717 | bfd_alloc(abfd, sizeof(oasys_per_section_type)); |
| 718 | oasys_per_section( newsect)->data = (bfd_byte *)NULL; |
| 719 | oasys_per_section(newsect)->section = newsect; |
| 720 | oasys_per_section(newsect)->offset = 0; |
| 721 | oasys_per_section(newsect)->initialized = false; |
| 722 | newsect->alignment_power = 1; |
| 723 | /* Turn the section string into an index */ |
| 724 | |
| 725 | sscanf(newsect->name,"%u", &newsect->target_index); |
| 726 | |
| 727 | return true; |
| 728 | } |
| 729 | |
| 730 | |
| 731 | static unsigned int |
| 732 | DEFUN(oasys_get_reloc_upper_bound, (abfd, asect), |
| 733 | bfd *abfd AND |
| 734 | sec_ptr asect) |
| 735 | { |
| 736 | oasys_slurp_section_data(abfd); |
| 737 | return (asect->reloc_count+1) * sizeof(arelent *); |
| 738 | } |
| 739 | |
| 740 | static boolean |
| 741 | DEFUN(oasys_get_section_contents,(abfd, section, location, offset, count), |
| 742 | bfd *abfd AND |
| 743 | sec_ptr section AND |
| 744 | PTR location AND |
| 745 | file_ptr offset AND |
| 746 | bfd_size_type count) |
| 747 | { |
| 748 | oasys_per_section_type *p = (oasys_per_section_type *) section->used_by_bfd; |
| 749 | oasys_slurp_section_data(abfd); |
| 750 | if (p->initialized == false) |
| 751 | { |
| 752 | (void) memset(location, 0, (int)count); |
| 753 | } |
| 754 | else |
| 755 | { |
| 756 | (void) memcpy(location,(PTR)( p->data + offset), (int)count); |
| 757 | } |
| 758 | return true; |
| 759 | } |
| 760 | |
| 761 | |
| 762 | unsigned int |
| 763 | DEFUN(oasys_canonicalize_reloc,(ignore_abfd, section, relptr, symbols), |
| 764 | bfd *ignore_abfd AND |
| 765 | sec_ptr section AND |
| 766 | arelent **relptr AND |
| 767 | asymbol **symbols) |
| 768 | { |
| 769 | unsigned int reloc_count = 0; |
| 770 | oasys_reloc_type *src = (oasys_reloc_type *)(section->relocation); |
| 771 | while (src != (oasys_reloc_type *)NULL) { |
| 772 | abort(); |
| 773 | |
| 774 | #if 0 |
| 775 | if (src->relent.section == (asection *)NULL) |
| 776 | { |
| 777 | src->relent.sym_ptr_ptr = symbols + src->symbol; |
| 778 | } |
| 779 | #endif |
| 780 | |
| 781 | *relptr ++ = &src->relent; |
| 782 | src = src->next; |
| 783 | reloc_count++; |
| 784 | } |
| 785 | *relptr = (arelent *)NULL; |
| 786 | return section->reloc_count = reloc_count; |
| 787 | } |
| 788 | |
| 789 | |
| 790 | |
| 791 | |
| 792 | /* Writing */ |
| 793 | |
| 794 | |
| 795 | /* Calculate the checksum and write one record */ |
| 796 | static void |
| 797 | DEFUN(oasys_write_record,(abfd, type, record, size), |
| 798 | bfd *CONST abfd AND |
| 799 | CONST oasys_record_enum_type type AND |
| 800 | oasys_record_union_type *record AND |
| 801 | CONST size_t size) |
| 802 | { |
| 803 | int checksum; |
| 804 | size_t i; |
| 805 | unsigned char *ptr; |
| 806 | |
| 807 | record->header.length = size; |
| 808 | record->header.type = (int)type; |
| 809 | record->header.check_sum = 0; |
| 810 | record->header.fill = 0; |
| 811 | ptr = (unsigned char *)&record->pad[0]; |
| 812 | checksum = 0; |
| 813 | for (i = 0; i < size; i++) { |
| 814 | checksum += *ptr++; |
| 815 | } |
| 816 | record->header.check_sum = 0xff & (- checksum); |
| 817 | bfd_write((PTR)record, 1, size, abfd); |
| 818 | } |
| 819 | |
| 820 | |
| 821 | /* Write out all the symbols */ |
| 822 | static void |
| 823 | DEFUN(oasys_write_syms, (abfd), |
| 824 | bfd * CONST abfd) |
| 825 | { |
| 826 | unsigned int count; |
| 827 | asymbol **generic = bfd_get_outsymbols(abfd); |
| 828 | unsigned int index = 0; |
| 829 | for (count = 0; count < bfd_get_symcount(abfd); count++) { |
| 830 | |
| 831 | oasys_symbol_record_type symbol; |
| 832 | asymbol * CONST g = generic[count]; |
| 833 | |
| 834 | CONST char *src = g->name; |
| 835 | char *dst = symbol.name; |
| 836 | unsigned int l = 0; |
| 837 | |
| 838 | if (bfd_is_com_section (g->section)) { |
| 839 | symbol.relb = RELOCATION_TYPE_COM; |
| 840 | bfd_h_put_16(abfd, index, symbol.refno); |
| 841 | index++; |
| 842 | } |
| 843 | else if (g->section == & bfd_abs_section) { |
| 844 | symbol.relb = RELOCATION_TYPE_ABS; |
| 845 | bfd_h_put_16(abfd, 0, symbol.refno); |
| 846 | |
| 847 | } |
| 848 | else if (g->section == &bfd_und_section) { |
| 849 | symbol.relb = RELOCATION_TYPE_UND ; |
| 850 | bfd_h_put_16(abfd, index, symbol.refno); |
| 851 | /* Overload the value field with the output index number */ |
| 852 | index++; |
| 853 | } |
| 854 | else if (g->flags & BSF_DEBUGGING) { |
| 855 | /* throw it away */ |
| 856 | continue; |
| 857 | } |
| 858 | else { |
| 859 | if (g->section == (asection *)NULL) { |
| 860 | /* Sometime, the oasys tools give out a symbol with illegal |
| 861 | bits in it, we'll output it in the same broken way */ |
| 862 | |
| 863 | symbol.relb = RELOCATION_TYPE_REL | 0; |
| 864 | } |
| 865 | else { |
| 866 | symbol.relb = RELOCATION_TYPE_REL |g->section->output_section->target_index; |
| 867 | } |
| 868 | bfd_h_put_16(abfd, 0, symbol.refno); |
| 869 | } |
| 870 | #ifdef UNDERSCORE_HACK |
| 871 | if (src[l] == '_') |
| 872 | dst[l++] = '.'; |
| 873 | #endif |
| 874 | while (src[l]) { |
| 875 | dst[l] = src[l]; |
| 876 | l++; |
| 877 | } |
| 878 | |
| 879 | bfd_h_put_32(abfd, g->value, symbol.value); |
| 880 | |
| 881 | |
| 882 | if (g->flags & BSF_LOCAL) { |
| 883 | oasys_write_record(abfd, |
| 884 | oasys_record_is_local_enum, |
| 885 | (oasys_record_union_type *) &symbol, |
| 886 | offsetof(oasys_symbol_record_type, name[0]) + l); |
| 887 | } |
| 888 | else { |
| 889 | oasys_write_record(abfd, |
| 890 | oasys_record_is_symbol_enum, |
| 891 | (oasys_record_union_type *) &symbol, |
| 892 | offsetof(oasys_symbol_record_type, name[0]) + l); |
| 893 | } |
| 894 | g->value = index-1; |
| 895 | } |
| 896 | } |
| 897 | |
| 898 | |
| 899 | /* Write a section header for each section */ |
| 900 | static void |
| 901 | DEFUN(oasys_write_sections, (abfd), |
| 902 | bfd *CONST abfd) |
| 903 | { |
| 904 | asection *s; |
| 905 | static oasys_section_record_type out; |
| 906 | |
| 907 | for (s = abfd->sections; s != (asection *)NULL; s = s->next) { |
| 908 | if (!isdigit(s->name[0])) |
| 909 | { |
| 910 | bfd_error_vector.nonrepresentable_section(abfd, |
| 911 | s->name); |
| 912 | } |
| 913 | out.relb = RELOCATION_TYPE_REL | s->target_index; |
| 914 | bfd_h_put_32(abfd, s->_cooked_size, out.value); |
| 915 | bfd_h_put_32(abfd, s->vma, out.vma); |
| 916 | |
| 917 | oasys_write_record(abfd, |
| 918 | oasys_record_is_section_enum, |
| 919 | (oasys_record_union_type *) &out, |
| 920 | sizeof(out)); |
| 921 | } |
| 922 | } |
| 923 | |
| 924 | static void |
| 925 | DEFUN(oasys_write_header, (abfd), |
| 926 | bfd *CONST abfd) |
| 927 | { |
| 928 | /* Create and write the header */ |
| 929 | oasys_header_record_type r; |
| 930 | size_t length = strlen(abfd->filename); |
| 931 | if (length > (size_t)sizeof(r.module_name)) { |
| 932 | length = sizeof(r.module_name); |
| 933 | } |
| 934 | |
| 935 | (void)memcpy(r.module_name, |
| 936 | abfd->filename, |
| 937 | length); |
| 938 | (void)memset(r.module_name + length, |
| 939 | ' ', |
| 940 | sizeof(r.module_name) - length); |
| 941 | |
| 942 | r.version_number = OASYS_VERSION_NUMBER; |
| 943 | r.rev_number = OASYS_REV_NUMBER; |
| 944 | oasys_write_record(abfd, |
| 945 | oasys_record_is_header_enum, |
| 946 | (oasys_record_union_type *)&r, |
| 947 | offsetof(oasys_header_record_type, description[0])); |
| 948 | |
| 949 | |
| 950 | |
| 951 | } |
| 952 | |
| 953 | static void |
| 954 | DEFUN(oasys_write_end,(abfd), |
| 955 | bfd *CONST abfd) |
| 956 | { |
| 957 | oasys_end_record_type end; |
| 958 | unsigned char null = 0; |
| 959 | end.relb = RELOCATION_TYPE_ABS; |
| 960 | bfd_h_put_32(abfd, abfd->start_address, end.entry); |
| 961 | bfd_h_put_16(abfd, 0, end.fill); |
| 962 | end.zero = 0; |
| 963 | oasys_write_record(abfd, |
| 964 | oasys_record_is_end_enum, |
| 965 | (oasys_record_union_type *)&end, |
| 966 | sizeof(end)); |
| 967 | bfd_write((PTR)&null, 1, 1, abfd); |
| 968 | } |
| 969 | |
| 970 | static int |
| 971 | DEFUN(comp,(ap, bp), |
| 972 | CONST PTR ap AND |
| 973 | CONST PTR bp) |
| 974 | { |
| 975 | arelent *a = *((arelent **)ap); |
| 976 | arelent *b = *((arelent **)bp); |
| 977 | return a->address - b->address; |
| 978 | } |
| 979 | |
| 980 | /* |
| 981 | Writing data.. |
| 982 | |
| 983 | */ |
| 984 | static void |
| 985 | DEFUN(oasys_write_data, (abfd), |
| 986 | bfd *CONST abfd) |
| 987 | { |
| 988 | asection *s; |
| 989 | for (s = abfd->sections; s != (asection *)NULL; s = s->next) { |
| 990 | if (s->flags & SEC_LOAD) { |
| 991 | bfd_byte *raw_data = oasys_per_section(s)->data; |
| 992 | oasys_data_record_type processed_data; |
| 993 | bfd_size_type current_byte_index = 0; |
| 994 | unsigned int relocs_to_go = s->reloc_count; |
| 995 | arelent **p = s->orelocation; |
| 996 | if (s->reloc_count != 0) { |
| 997 | /* Sort the reloc records so it's easy to insert the relocs into the |
| 998 | data */ |
| 999 | |
| 1000 | qsort(s->orelocation, |
| 1001 | s->reloc_count, |
| 1002 | sizeof(arelent **), |
| 1003 | comp); |
| 1004 | } |
| 1005 | current_byte_index = 0; |
| 1006 | processed_data.relb = s->target_index | RELOCATION_TYPE_REL; |
| 1007 | |
| 1008 | while (current_byte_index < s->_cooked_size) |
| 1009 | { |
| 1010 | /* Scan forwards by eight bytes or however much is left and see if |
| 1011 | there are any relocations going on */ |
| 1012 | bfd_byte *mod = &processed_data.data[0]; |
| 1013 | bfd_byte *dst = &processed_data.data[1]; |
| 1014 | |
| 1015 | unsigned int i = 0; |
| 1016 | *mod = 0; |
| 1017 | |
| 1018 | |
| 1019 | bfd_h_put_32(abfd, s->vma + current_byte_index, |
| 1020 | processed_data.addr); |
| 1021 | |
| 1022 | /* Don't start a relocation unless you're sure you can finish it |
| 1023 | within the same data record. The worst case relocation is a |
| 1024 | 4-byte relocatable value which is split across two modification |
| 1025 | bytes (1 relocation byte + 2 symbol reference bytes + 2 data + |
| 1026 | 1 modification byte + 2 data = 8 bytes total). That's where |
| 1027 | the magic number 8 comes from. |
| 1028 | */ |
| 1029 | while (current_byte_index < s->_raw_size && dst <= |
| 1030 | &processed_data.data[sizeof(processed_data.data)-8]) { |
| 1031 | |
| 1032 | |
| 1033 | if (relocs_to_go != 0) { |
| 1034 | arelent *r = *p; |
| 1035 | reloc_howto_type *CONST how=r->howto; |
| 1036 | /* There is a relocation, is it for this byte ? */ |
| 1037 | if (r->address == current_byte_index) { |
| 1038 | unsigned char rel_byte; |
| 1039 | |
| 1040 | p++; |
| 1041 | relocs_to_go--; |
| 1042 | |
| 1043 | *mod |= (1<<i); |
| 1044 | if(how->pc_relative) { |
| 1045 | rel_byte = RELOCATION_PCREL_BIT; |
| 1046 | |
| 1047 | /* Also patch the raw data so that it doesn't have |
| 1048 | the -ve stuff any more */ |
| 1049 | if (how->size != 2) { |
| 1050 | bfd_put_16(abfd, |
| 1051 | bfd_get_16(abfd,raw_data) + |
| 1052 | current_byte_index, raw_data); |
| 1053 | } |
| 1054 | |
| 1055 | else { |
| 1056 | bfd_put_32(abfd, |
| 1057 | bfd_get_32(abfd,raw_data) + |
| 1058 | current_byte_index, raw_data); |
| 1059 | } |
| 1060 | } |
| 1061 | else { |
| 1062 | rel_byte = 0; |
| 1063 | } |
| 1064 | if (how->size ==2) { |
| 1065 | rel_byte |= RELOCATION_32BIT_BIT; |
| 1066 | } |
| 1067 | |
| 1068 | /* Is this a section relative relocation, or a symbol |
| 1069 | relative relocation ? */ |
| 1070 | abort(); |
| 1071 | |
| 1072 | #if 0 |
| 1073 | if (r->section != (asection*)NULL) |
| 1074 | { |
| 1075 | /* The relent has a section attached, so it must be section |
| 1076 | relative */ |
| 1077 | rel_byte |= RELOCATION_TYPE_REL; |
| 1078 | rel_byte |= r->section->output_section->target_index; |
| 1079 | *dst++ = rel_byte; |
| 1080 | } |
| 1081 | else |
| 1082 | #endif |
| 1083 | { |
| 1084 | asymbol *p = *(r->sym_ptr_ptr); |
| 1085 | |
| 1086 | /* If this symbol has a section attached, then it |
| 1087 | has already been resolved. Change from a symbol |
| 1088 | ref to a section ref */ |
| 1089 | if(p->section != (asection *)NULL) { |
| 1090 | rel_byte |= RELOCATION_TYPE_REL; |
| 1091 | rel_byte |= |
| 1092 | p->section->output_section->target_index; |
| 1093 | *dst++ = rel_byte; |
| 1094 | } |
| 1095 | else { |
| 1096 | rel_byte |= RELOCATION_TYPE_UND; |
| 1097 | *dst++ = rel_byte; |
| 1098 | /* Next two bytes are a symbol index - we can get |
| 1099 | this from the symbol value which has been zapped |
| 1100 | into the symbol index in the table when the |
| 1101 | symbol table was written |
| 1102 | */ |
| 1103 | *dst++ = p->value >> 8; |
| 1104 | *dst++ = p->value; |
| 1105 | } |
| 1106 | } |
| 1107 | #define ADVANCE { if (++i >= 8) { i = 0; mod = dst++; *mod = 0; } current_byte_index++; } |
| 1108 | /* relocations never occur from an unloadable section, |
| 1109 | so we can assume that raw_data is not NULL |
| 1110 | */ |
| 1111 | *dst++ = *raw_data++; |
| 1112 | ADVANCE |
| 1113 | *dst++ = *raw_data++; |
| 1114 | ADVANCE |
| 1115 | if (how->size == 2) { |
| 1116 | *dst++ = *raw_data++; |
| 1117 | ADVANCE |
| 1118 | *dst++ = *raw_data++; |
| 1119 | ADVANCE |
| 1120 | } |
| 1121 | continue; |
| 1122 | } |
| 1123 | } |
| 1124 | /* If this is coming from an unloadable section then copy |
| 1125 | zeros */ |
| 1126 | if (raw_data == NULL) { |
| 1127 | *dst++ = 0; |
| 1128 | } |
| 1129 | else { |
| 1130 | *dst++ = *raw_data++; |
| 1131 | } |
| 1132 | ADVANCE |
| 1133 | } |
| 1134 | |
| 1135 | /* Don't write a useless null modification byte */ |
| 1136 | if (dst == mod+1) { |
| 1137 | --dst; |
| 1138 | } |
| 1139 | |
| 1140 | oasys_write_record(abfd, |
| 1141 | oasys_record_is_data_enum, |
| 1142 | (oasys_record_union_type *)&processed_data, |
| 1143 | dst - (bfd_byte *)&processed_data); |
| 1144 | |
| 1145 | } |
| 1146 | } |
| 1147 | } |
| 1148 | } |
| 1149 | static boolean |
| 1150 | DEFUN(oasys_write_object_contents, (abfd), |
| 1151 | bfd *abfd) |
| 1152 | { |
| 1153 | oasys_write_header(abfd); |
| 1154 | oasys_write_syms(abfd); |
| 1155 | oasys_write_sections(abfd); |
| 1156 | oasys_write_data(abfd); |
| 1157 | oasys_write_end(abfd); |
| 1158 | return true; |
| 1159 | } |
| 1160 | |
| 1161 | |
| 1162 | |
| 1163 | |
| 1164 | /** exec and core file sections */ |
| 1165 | |
| 1166 | /* set section contents is complicated with OASYS since the format is |
| 1167 | * not a byte image, but a record stream. |
| 1168 | */ |
| 1169 | static boolean |
| 1170 | DEFUN(oasys_set_section_contents,(abfd, section, location, offset, count), |
| 1171 | bfd *abfd AND |
| 1172 | sec_ptr section AND |
| 1173 | PTR location AND |
| 1174 | file_ptr offset AND |
| 1175 | bfd_size_type count) |
| 1176 | { |
| 1177 | if (count != 0) { |
| 1178 | if (oasys_per_section(section)->data == (bfd_byte *)NULL ) |
| 1179 | { |
| 1180 | oasys_per_section(section)->data = |
| 1181 | (bfd_byte *)(bfd_alloc(abfd,section->_cooked_size)); |
| 1182 | } |
| 1183 | (void) memcpy((PTR)(oasys_per_section(section)->data + offset), |
| 1184 | location, |
| 1185 | count); |
| 1186 | } |
| 1187 | return true; |
| 1188 | } |
| 1189 | |
| 1190 | |
| 1191 | |
| 1192 | /* Native-level interface to symbols. */ |
| 1193 | |
| 1194 | /* We read the symbols into a buffer, which is discarded when this |
| 1195 | function exits. We read the strings into a buffer large enough to |
| 1196 | hold them all plus all the cached symbol entries. */ |
| 1197 | |
| 1198 | static asymbol * |
| 1199 | DEFUN(oasys_make_empty_symbol,(abfd), |
| 1200 | bfd *abfd) |
| 1201 | { |
| 1202 | |
| 1203 | oasys_symbol_type *new = |
| 1204 | (oasys_symbol_type *)bfd_zalloc (abfd, sizeof (oasys_symbol_type)); |
| 1205 | new->symbol.the_bfd = abfd; |
| 1206 | return &new->symbol; |
| 1207 | |
| 1208 | } |
| 1209 | |
| 1210 | |
| 1211 | \f |
| 1212 | |
| 1213 | /* User should have checked the file flags; perhaps we should return |
| 1214 | BFD_NO_MORE_SYMBOLS if there are none? */ |
| 1215 | |
| 1216 | static bfd * |
| 1217 | oasys_openr_next_archived_file(arch, prev) |
| 1218 | bfd *arch; |
| 1219 | bfd *prev; |
| 1220 | { |
| 1221 | oasys_ar_data_type *ar = OASYS_AR_DATA(arch); |
| 1222 | oasys_module_info_type *p; |
| 1223 | /* take the next one from the arch state, or reset */ |
| 1224 | if (prev == (bfd *)NULL) { |
| 1225 | /* Reset the index - the first two entries are bogus*/ |
| 1226 | ar->module_index = 0; |
| 1227 | } |
| 1228 | |
| 1229 | p = ar->module + ar->module_index; |
| 1230 | ar->module_index++; |
| 1231 | |
| 1232 | if (ar->module_index <= ar->module_count) { |
| 1233 | if (p->abfd == (bfd *)NULL) { |
| 1234 | p->abfd = _bfd_create_empty_archive_element_shell(arch); |
| 1235 | p->abfd->origin = p->pos; |
| 1236 | p->abfd->filename = p->name; |
| 1237 | |
| 1238 | /* Fixup a pointer to this element for the member */ |
| 1239 | p->abfd->arelt_data = (PTR)p; |
| 1240 | } |
| 1241 | return p->abfd; |
| 1242 | } |
| 1243 | else { |
| 1244 | bfd_error = no_more_archived_files; |
| 1245 | return (bfd *)NULL; |
| 1246 | } |
| 1247 | } |
| 1248 | |
| 1249 | static boolean |
| 1250 | oasys_find_nearest_line(abfd, |
| 1251 | section, |
| 1252 | symbols, |
| 1253 | offset, |
| 1254 | filename_ptr, |
| 1255 | functionname_ptr, |
| 1256 | line_ptr) |
| 1257 | bfd *abfd; |
| 1258 | asection *section; |
| 1259 | asymbol **symbols; |
| 1260 | bfd_vma offset; |
| 1261 | char **filename_ptr; |
| 1262 | char **functionname_ptr; |
| 1263 | unsigned int *line_ptr; |
| 1264 | { |
| 1265 | return false; |
| 1266 | |
| 1267 | } |
| 1268 | |
| 1269 | static int |
| 1270 | DEFUN(oasys_generic_stat_arch_elt,(abfd, buf), |
| 1271 | bfd *abfd AND |
| 1272 | struct stat *buf) |
| 1273 | { |
| 1274 | oasys_module_info_type *mod = (oasys_module_info_type *) abfd->arelt_data; |
| 1275 | if (mod == (oasys_module_info_type *)NULL) { |
| 1276 | bfd_error = invalid_operation; |
| 1277 | return -1; |
| 1278 | } |
| 1279 | else { |
| 1280 | buf->st_size = mod->size; |
| 1281 | buf->st_mode = 0666; |
| 1282 | return 0; |
| 1283 | } |
| 1284 | } |
| 1285 | |
| 1286 | static int |
| 1287 | DEFUN(oasys_sizeof_headers,(abfd, exec), |
| 1288 | bfd *abfd AND |
| 1289 | boolean exec) |
| 1290 | { |
| 1291 | return 0; |
| 1292 | } |
| 1293 | #define FOO PROTO |
| 1294 | #define oasys_core_file_failing_command (char *(*)())(bfd_nullvoidptr) |
| 1295 | #define oasys_core_file_failing_signal (int (*)())bfd_0 |
| 1296 | #define oasys_core_file_matches_executable_p 0 |
| 1297 | #define oasys_slurp_armap bfd_true |
| 1298 | #define oasys_slurp_extended_name_table bfd_true |
| 1299 | #define oasys_truncate_arname (void (*)())bfd_nullvoidptr |
| 1300 | #define oasys_write_armap 0 |
| 1301 | #define oasys_get_lineno (struct lineno_cache_entry *(*)())bfd_nullvoidptr |
| 1302 | #define oasys_close_and_cleanup bfd_generic_close_and_cleanup |
| 1303 | #define oasys_set_arch_mach bfd_default_set_arch_mach |
| 1304 | #define oasys_bfd_debug_info_start bfd_void |
| 1305 | #define oasys_bfd_debug_info_end bfd_void |
| 1306 | #define oasys_bfd_debug_info_accumulate (FOO(void, (*), (bfd *, asection *)))bfd_void |
| 1307 | #define oasys_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents |
| 1308 | #define oasys_bfd_relax_section bfd_generic_relax_section |
| 1309 | #define oasys_bfd_seclet_link bfd_generic_seclet_link |
| 1310 | #define oasys_bfd_reloc_type_lookup \ |
| 1311 | ((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr) |
| 1312 | #define oasys_bfd_make_debug_symbol \ |
| 1313 | ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr) |
| 1314 | |
| 1315 | /*SUPPRESS 460 */ |
| 1316 | bfd_target oasys_vec = |
| 1317 | { |
| 1318 | "oasys", /* name */ |
| 1319 | bfd_target_oasys_flavour, |
| 1320 | true, /* target byte order */ |
| 1321 | true, /* target headers byte order */ |
| 1322 | (HAS_RELOC | EXEC_P | /* object flags */ |
| 1323 | HAS_LINENO | HAS_DEBUG | |
| 1324 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED), |
| 1325 | (SEC_CODE|SEC_DATA|SEC_ROM|SEC_HAS_CONTENTS |
| 1326 | |SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
| 1327 | 0, /* leading underscore */ |
| 1328 | ' ', /* ar_pad_char */ |
| 1329 | 16, /* ar_max_namelen */ |
| 1330 | 1, /* minimum alignment */ |
| 1331 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 1332 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 1333 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ |
| 1334 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 1335 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 1336 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ |
| 1337 | |
| 1338 | {_bfd_dummy_target, |
| 1339 | oasys_object_p, /* bfd_check_format */ |
| 1340 | oasys_archive_p, |
| 1341 | _bfd_dummy_target, |
| 1342 | }, |
| 1343 | { /* bfd_set_format */ |
| 1344 | bfd_false, |
| 1345 | oasys_mkobject, |
| 1346 | _bfd_generic_mkarchive, |
| 1347 | bfd_false |
| 1348 | }, |
| 1349 | { /* bfd_write_contents */ |
| 1350 | bfd_false, |
| 1351 | oasys_write_object_contents, |
| 1352 | _bfd_write_archive_contents, |
| 1353 | bfd_false, |
| 1354 | }, |
| 1355 | JUMP_TABLE(oasys), |
| 1356 | (PTR) 0 |
| 1357 | }; |