| 1 | /* Read apollo DST symbol tables and convert to internal format, for GDB. |
| 2 | Contributed by Troy Rollo, University of NSW (troy@cbme.unsw.edu.au). |
| 3 | Copyright 1993 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 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 | \f |
| 21 | #include "defs.h" |
| 22 | #include "symtab.h" |
| 23 | #include "gdbtypes.h" |
| 24 | #include "breakpoint.h" |
| 25 | #include "bfd.h" |
| 26 | #include "symfile.h" |
| 27 | #include "objfiles.h" |
| 28 | #include "buildsym.h" |
| 29 | #include <obstack.h> |
| 30 | |
| 31 | #include <string.h> |
| 32 | |
| 33 | #include "dst.h" |
| 34 | |
| 35 | CORE_ADDR cur_src_start_addr, cur_src_end_addr; |
| 36 | dst_sec blocks_info, lines_info, symbols_info; |
| 37 | |
| 38 | /* Vector of line number information. */ |
| 39 | |
| 40 | static struct linetable *line_vector; |
| 41 | |
| 42 | /* Index of next entry to go in line_vector_index. */ |
| 43 | |
| 44 | static int line_vector_index; |
| 45 | |
| 46 | /* Last line number recorded in the line vector. */ |
| 47 | |
| 48 | static int prev_line_number; |
| 49 | |
| 50 | /* Number of elements allocated for line_vector currently. */ |
| 51 | |
| 52 | static int line_vector_length; |
| 53 | |
| 54 | static struct blockvector * |
| 55 | make_blockvector PARAMS ((struct objfile *)); |
| 56 | |
| 57 | static int |
| 58 | init_dst_sections PARAMS ((int)); |
| 59 | |
| 60 | static void |
| 61 | read_dst_symtab PARAMS ((struct objfile *)); |
| 62 | |
| 63 | static void |
| 64 | find_dst_sections PARAMS ((bfd *, sec_ptr, PTR)); |
| 65 | |
| 66 | static void |
| 67 | dst_symfile_init PARAMS ((struct objfile *)); |
| 68 | |
| 69 | static void |
| 70 | dst_new_init PARAMS ((struct objfile *)); |
| 71 | |
| 72 | static void |
| 73 | dst_symfile_read PARAMS ((struct objfile *, struct section_offsets *, int)); |
| 74 | |
| 75 | static void |
| 76 | dst_symfile_finish PARAMS ((struct objfile *)); |
| 77 | |
| 78 | static void |
| 79 | record_minimal_symbol PARAMS ((char *, CORE_ADDR, enum minimal_symbol_type, |
| 80 | struct objfile *)); |
| 81 | |
| 82 | static void |
| 83 | dst_end_symtab PARAMS ((struct objfile *)); |
| 84 | |
| 85 | static void |
| 86 | complete_symtab PARAMS ((char *, CORE_ADDR, unsigned int)); |
| 87 | |
| 88 | static void |
| 89 | dst_start_symtab PARAMS ((void)); |
| 90 | |
| 91 | static void |
| 92 | dst_record_line PARAMS ((int, CORE_ADDR)); |
| 93 | |
| 94 | static struct blockvector * |
| 95 | make_blockvector (objfile) |
| 96 | struct objfile *objfile; |
| 97 | { |
| 98 | register struct pending_block *next, *next1; |
| 99 | register struct blockvector *blockvector; |
| 100 | register int i; |
| 101 | |
| 102 | /* Count the length of the list of blocks. */ |
| 103 | |
| 104 | for (next = pending_blocks, i = 0; next; next = next->next, i++); |
| 105 | |
| 106 | blockvector = (struct blockvector *) |
| 107 | obstack_alloc (&objfile->symbol_obstack, sizeof (struct blockvector) + (i - 1) * sizeof (struct block *)); |
| 108 | |
| 109 | /* Copy the blocks into the blockvector. |
| 110 | This is done in reverse order, which happens to put |
| 111 | the blocks into the proper order (ascending starting address). |
| 112 | */ |
| 113 | |
| 114 | BLOCKVECTOR_NBLOCKS (blockvector) = i; |
| 115 | for (next = pending_blocks; next; next = next->next) |
| 116 | BLOCKVECTOR_BLOCK (blockvector, --i) = next->block; |
| 117 | |
| 118 | /* Now free the links of the list, and empty the list. */ |
| 119 | |
| 120 | for (next = pending_blocks; next; next = next1) |
| 121 | { |
| 122 | next1 = next->next; |
| 123 | free ((PTR)next); |
| 124 | } |
| 125 | pending_blocks = 0; |
| 126 | |
| 127 | return blockvector; |
| 128 | } |
| 129 | |
| 130 | /* Manage the vector of line numbers. */ |
| 131 | /* FIXME: Use record_line instead. */ |
| 132 | |
| 133 | static void |
| 134 | dst_record_line (line, pc) |
| 135 | int line; |
| 136 | CORE_ADDR pc; |
| 137 | { |
| 138 | struct linetable_entry *e; |
| 139 | /* Make sure line vector is big enough. */ |
| 140 | |
| 141 | if (line_vector_index + 2 >= line_vector_length) |
| 142 | { |
| 143 | line_vector_length *= 2; |
| 144 | line_vector = (struct linetable *) |
| 145 | xrealloc ((char *) line_vector, sizeof (struct linetable) |
| 146 | + (line_vector_length |
| 147 | * sizeof (struct linetable_entry))); |
| 148 | } |
| 149 | |
| 150 | e = line_vector->item + line_vector_index++; |
| 151 | e->line = line; e->pc = pc; |
| 152 | } |
| 153 | \f |
| 154 | /* Start a new symtab for a new source file. |
| 155 | It indicates the start of data for one original source file. */ |
| 156 | /* FIXME: use start_symtab, like coffread.c now does. */ |
| 157 | |
| 158 | static void |
| 159 | dst_start_symtab () |
| 160 | { |
| 161 | /* Initialize the source file line number information for this file. */ |
| 162 | |
| 163 | if (line_vector) /* Unlikely, but maybe possible? */ |
| 164 | free ((PTR)line_vector); |
| 165 | line_vector_index = 0; |
| 166 | line_vector_length = 1000; |
| 167 | prev_line_number = -2; /* Force first line number to be explicit */ |
| 168 | line_vector = (struct linetable *) |
| 169 | xmalloc (sizeof (struct linetable) |
| 170 | + line_vector_length * sizeof (struct linetable_entry)); |
| 171 | } |
| 172 | |
| 173 | /* Save the vital information from when starting to read a file, |
| 174 | for use when closing off the current file. |
| 175 | NAME is the file name the symbols came from, START_ADDR is the first |
| 176 | text address for the file, and SIZE is the number of bytes of text. */ |
| 177 | |
| 178 | static void |
| 179 | complete_symtab (name, start_addr, size) |
| 180 | char *name; |
| 181 | CORE_ADDR start_addr; |
| 182 | unsigned int size; |
| 183 | { |
| 184 | last_source_file = savestring (name, strlen (name)); |
| 185 | cur_src_start_addr = start_addr; |
| 186 | cur_src_end_addr = start_addr + size; |
| 187 | |
| 188 | if (current_objfile -> ei.entry_point >= cur_src_start_addr && |
| 189 | current_objfile -> ei.entry_point < cur_src_end_addr) |
| 190 | { |
| 191 | current_objfile -> ei.entry_file_lowpc = cur_src_start_addr; |
| 192 | current_objfile -> ei.entry_file_highpc = cur_src_end_addr; |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | /* Finish the symbol definitions for one main source file, |
| 197 | close off all the lexical contexts for that file |
| 198 | (creating struct block's for them), then make the |
| 199 | struct symtab for that file and put it in the list of all such. */ |
| 200 | /* FIXME: Use end_symtab, like coffread.c now does. */ |
| 201 | |
| 202 | static void |
| 203 | dst_end_symtab (objfile) |
| 204 | struct objfile *objfile; |
| 205 | { |
| 206 | register struct symtab *symtab; |
| 207 | register struct blockvector *blockvector; |
| 208 | register struct linetable *lv; |
| 209 | |
| 210 | /* Create the blockvector that points to all the file's blocks. */ |
| 211 | |
| 212 | blockvector = make_blockvector (objfile); |
| 213 | |
| 214 | /* Now create the symtab object for this source file. */ |
| 215 | symtab = allocate_symtab (last_source_file, objfile); |
| 216 | |
| 217 | /* Fill in its components. */ |
| 218 | symtab->blockvector = blockvector; |
| 219 | symtab->free_code = free_linetable; |
| 220 | symtab->free_ptr = 0; |
| 221 | symtab->filename = last_source_file; |
| 222 | symtab->dirname = NULL; |
| 223 | lv = line_vector; |
| 224 | lv->nitems = line_vector_index; |
| 225 | symtab->linetable = (struct linetable *) |
| 226 | xrealloc ((char *) lv, (sizeof (struct linetable) |
| 227 | + lv->nitems * sizeof (struct linetable_entry))); |
| 228 | |
| 229 | free_named_symtabs (symtab->filename); |
| 230 | |
| 231 | /* Reinitialize for beginning of new file. */ |
| 232 | line_vector = 0; |
| 233 | line_vector_length = -1; |
| 234 | last_source_file = NULL; |
| 235 | } |
| 236 | \f |
| 237 | static void |
| 238 | record_minimal_symbol (name, address, type, objfile) |
| 239 | char *name; |
| 240 | CORE_ADDR address; |
| 241 | enum minimal_symbol_type type; |
| 242 | struct objfile *objfile; |
| 243 | { |
| 244 | prim_record_minimal_symbol (savestring (name, strlen (name)), |
| 245 | address, |
| 246 | type, |
| 247 | objfile); |
| 248 | } |
| 249 | \f |
| 250 | /* dst_symfile_init () |
| 251 | is the dst-specific initialization routine for reading symbols. |
| 252 | |
| 253 | We will only be called if this is a DST or DST-like file. |
| 254 | BFD handles figuring out the format of the file, and code in symtab.c |
| 255 | uses BFD's determination to vector to us. |
| 256 | |
| 257 | The ultimate result is a new symtab (or, FIXME, eventually a psymtab). */ |
| 258 | |
| 259 | static void |
| 260 | dst_symfile_init (objfile) |
| 261 | struct objfile *objfile; |
| 262 | { |
| 263 | asection *section; |
| 264 | bfd *abfd = objfile->obfd; |
| 265 | |
| 266 | init_entry_point_info (objfile); |
| 267 | |
| 268 | } |
| 269 | |
| 270 | /* This function is called for every section; it finds the outer limits |
| 271 | of the line table (minimum and maximum file offset) so that the |
| 272 | mainline code can read the whole thing for efficiency. */ |
| 273 | |
| 274 | /* ARGSUSED */ |
| 275 | static void |
| 276 | find_dst_sections (abfd, asect, vpinfo) |
| 277 | bfd *abfd; |
| 278 | sec_ptr asect; |
| 279 | PTR vpinfo; |
| 280 | { |
| 281 | int size, count; |
| 282 | long base; |
| 283 | file_ptr offset, maxoff; |
| 284 | dst_sec *section; |
| 285 | |
| 286 | /* WARNING WILL ROBINSON! ACCESSING BFD-PRIVATE DATA HERE! FIXME! */ |
| 287 | size = asect->_raw_size; |
| 288 | offset = asect->filepos; |
| 289 | base = asect->vma; |
| 290 | /* End of warning */ |
| 291 | |
| 292 | section = NULL; |
| 293 | if (!strcmp(asect->name, ".blocks")) |
| 294 | section = &blocks_info; |
| 295 | else if (!strcmp(asect->name, ".lines")) |
| 296 | section = &lines_info; |
| 297 | else if (!strcmp(asect->name, ".symbols")) |
| 298 | section = &symbols_info; |
| 299 | if (!section) |
| 300 | return; |
| 301 | section->size = size; |
| 302 | section->position = offset; |
| 303 | section->base = base; |
| 304 | } |
| 305 | |
| 306 | |
| 307 | /* The BFD for this file -- only good while we're actively reading |
| 308 | symbols into a psymtab or a symtab. */ |
| 309 | |
| 310 | static bfd *symfile_bfd; |
| 311 | |
| 312 | /* Read a symbol file, after initialization by dst_symfile_init. */ |
| 313 | /* FIXME! Addr and Mainline are not used yet -- this will not work for |
| 314 | shared libraries or add_file! */ |
| 315 | |
| 316 | /* ARGSUSED */ |
| 317 | static void |
| 318 | dst_symfile_read (objfile, section_offsets, mainline) |
| 319 | struct objfile *objfile; |
| 320 | struct section_offsets *section_offsets; |
| 321 | int mainline; |
| 322 | { |
| 323 | bfd *abfd = objfile->obfd; |
| 324 | char *name = bfd_get_filename (abfd); |
| 325 | int desc; |
| 326 | register int val; |
| 327 | int num_symbols; |
| 328 | int symtab_offset; |
| 329 | int stringtab_offset; |
| 330 | |
| 331 | symfile_bfd = abfd; /* Kludge for swap routines */ |
| 332 | |
| 333 | /* WARNING WILL ROBINSON! ACCESSING BFD-PRIVATE DATA HERE! FIXME! */ |
| 334 | desc = fileno ((GDB_FILE *)(abfd->iostream)); /* File descriptor */ |
| 335 | |
| 336 | /* Read the line number table, all at once. */ |
| 337 | bfd_map_over_sections (abfd, find_dst_sections, (PTR)NULL); |
| 338 | |
| 339 | val = init_dst_sections (desc); |
| 340 | if (val < 0) |
| 341 | error ("\"%s\": error reading debugging symbol tables\n", name); |
| 342 | |
| 343 | init_minimal_symbol_collection (); |
| 344 | make_cleanup (discard_minimal_symbols, 0); |
| 345 | |
| 346 | /* Now that the executable file is positioned at symbol table, |
| 347 | process it and define symbols accordingly. */ |
| 348 | |
| 349 | read_dst_symtab (objfile); |
| 350 | |
| 351 | /* Sort symbols alphabetically within each block. */ |
| 352 | |
| 353 | { |
| 354 | struct symtab *s; |
| 355 | for (s = objfile -> symtabs; s != NULL; s = s -> next) |
| 356 | { |
| 357 | sort_symtab_syms (s); |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | /* Install any minimal symbols that have been collected as the current |
| 362 | minimal symbols for this objfile. */ |
| 363 | |
| 364 | install_minimal_symbols (objfile); |
| 365 | } |
| 366 | |
| 367 | static void |
| 368 | dst_new_init (ignore) |
| 369 | struct objfile *ignore; |
| 370 | { |
| 371 | /* Nothin' to do */ |
| 372 | } |
| 373 | |
| 374 | /* Perform any local cleanups required when we are done with a particular |
| 375 | objfile. I.E, we are in the process of discarding all symbol information |
| 376 | for an objfile, freeing up all memory held for it, and unlinking the |
| 377 | objfile struct from the global list of known objfiles. */ |
| 378 | |
| 379 | static void |
| 380 | dst_symfile_finish (objfile) |
| 381 | struct objfile *objfile; |
| 382 | { |
| 383 | /* Nothing to do */ |
| 384 | } |
| 385 | |
| 386 | \f |
| 387 | /* Get the next line number from the DST. Returns 0 when we hit an |
| 388 | * end directive or cannot continue for any other reason. |
| 389 | * |
| 390 | * Note that ordinary pc deltas are multiplied by two. Apparently |
| 391 | * this is what was really intended. |
| 392 | */ |
| 393 | static int |
| 394 | get_dst_line(buffer, pc) |
| 395 | signed char **buffer; |
| 396 | long *pc; |
| 397 | { |
| 398 | static last_pc = 0; |
| 399 | static long last_line = 0; |
| 400 | static int last_file = 0; |
| 401 | dst_ln_entry_ptr_t entry; |
| 402 | int size; |
| 403 | dst_src_loc_t *src_loc; |
| 404 | |
| 405 | if (*pc != -1) |
| 406 | { |
| 407 | last_pc = *pc; |
| 408 | *pc = -1; |
| 409 | } |
| 410 | entry = (dst_ln_entry_ptr_t) *buffer; |
| 411 | |
| 412 | while (dst_ln_ln_delta(*entry) == dst_ln_escape_flag) |
| 413 | { |
| 414 | switch(entry->esc.esc_code) |
| 415 | { |
| 416 | case dst_ln_pad: |
| 417 | size = 1; /* pad byte */ |
| 418 | break; |
| 419 | case dst_ln_file: |
| 420 | /* file escape. Next 4 bytes are a dst_src_loc_t */ |
| 421 | size = 5; |
| 422 | src_loc = (dst_src_loc_t *) (*buffer + 1); |
| 423 | last_line = src_loc->line_number; |
| 424 | last_file = src_loc->file_index; |
| 425 | break; |
| 426 | case dst_ln_dln1_dpc1: |
| 427 | /* 1 byte line delta, 1 byte pc delta */ |
| 428 | last_line += (*buffer)[1]; |
| 429 | last_pc += 2 * (unsigned char) (*buffer)[2]; |
| 430 | dst_record_line(last_line, last_pc); |
| 431 | size = 3; |
| 432 | break; |
| 433 | case dst_ln_dln2_dpc2: |
| 434 | /* 2 bytes line delta, 2 bytes pc delta */ |
| 435 | last_line += *(short *) (*buffer + 1); |
| 436 | last_pc += 2 * (*(short *) (*buffer + 3)); |
| 437 | size = 5; |
| 438 | dst_record_line(last_line, last_pc); |
| 439 | break; |
| 440 | case dst_ln_ln4_pc4: |
| 441 | /* 4 bytes ABSOLUTE line number, 4 bytes ABSOLUTE pc */ |
| 442 | last_line = *(unsigned long *) (*buffer + 1); |
| 443 | last_pc = *(unsigned long *) (*buffer + 5); |
| 444 | size = 9; |
| 445 | dst_record_line(last_line, last_pc); |
| 446 | break; |
| 447 | case dst_ln_dln1_dpc0: |
| 448 | /* 1 byte line delta, pc delta = 0 */ |
| 449 | size = 2; |
| 450 | last_line+= (*buffer)[1]; |
| 451 | break; |
| 452 | case dst_ln_ln_off_1: |
| 453 | /* statement escape, stmt # = 1 (2nd stmt on line) */ |
| 454 | size = 1; |
| 455 | break; |
| 456 | case dst_ln_ln_off: |
| 457 | /* statement escape, stmt # = next byte */ |
| 458 | size = 2; |
| 459 | break; |
| 460 | case dst_ln_entry: |
| 461 | /* entry escape, next byte is entry number */ |
| 462 | size = 2; |
| 463 | break; |
| 464 | case dst_ln_exit: |
| 465 | /* exit escape */ |
| 466 | size = 1; |
| 467 | break; |
| 468 | case dst_ln_stmt_end: |
| 469 | /* gap escape, 4 bytes pc delta */ |
| 470 | size = 5; |
| 471 | /* last_pc += 2 * (*(long *) (*buffer + 1)); */ |
| 472 | /* Apparently this isn't supposed to actually modify |
| 473 | * the pc value. Totally weird. |
| 474 | */ |
| 475 | break; |
| 476 | case dst_ln_escape_11: |
| 477 | case dst_ln_escape_12: |
| 478 | case dst_ln_escape_13: |
| 479 | size = 1; |
| 480 | break; |
| 481 | case dst_ln_nxt_byte: |
| 482 | /* This shouldn't happen. If it does, we're SOL */ |
| 483 | return 0; |
| 484 | break; |
| 485 | case dst_ln_end: |
| 486 | /* end escape, final entry follows */ |
| 487 | return 0; |
| 488 | } |
| 489 | *buffer += (size < 0) ? -size : size; |
| 490 | entry = (dst_ln_entry_ptr_t) *buffer; |
| 491 | } |
| 492 | last_line += dst_ln_ln_delta(*entry); |
| 493 | last_pc += entry->delta.pc_delta * 2; |
| 494 | (*buffer)++; |
| 495 | dst_record_line(last_line, last_pc); |
| 496 | return 1; |
| 497 | } |
| 498 | |
| 499 | static void |
| 500 | enter_all_lines(buffer, address) |
| 501 | char *buffer; |
| 502 | long address; |
| 503 | { |
| 504 | if (buffer) |
| 505 | while (get_dst_line(&buffer, &address)); |
| 506 | } |
| 507 | |
| 508 | static int |
| 509 | get_dst_entry(buffer, ret_entry) |
| 510 | char *buffer; |
| 511 | dst_rec_ptr_t *ret_entry; |
| 512 | { |
| 513 | int size; |
| 514 | dst_rec_ptr_t entry; |
| 515 | static int last_type; |
| 516 | int ar_size; |
| 517 | static unsigned lu3; |
| 518 | |
| 519 | entry = (dst_rec_ptr_t) buffer; |
| 520 | switch(entry->rec_type) |
| 521 | { |
| 522 | case dst_typ_pad: |
| 523 | size = 0; |
| 524 | break; |
| 525 | case dst_typ_comp_unit: |
| 526 | size = sizeof(DST_comp_unit(entry)); |
| 527 | break; |
| 528 | case dst_typ_section_tab: |
| 529 | size = sizeof(DST_section_tab(entry)) |
| 530 | + ((int) DST_section_tab(entry).number_of_sections |
| 531 | - dst_dummy_array_size) * sizeof(long); |
| 532 | break; |
| 533 | case dst_typ_file_tab: |
| 534 | size = sizeof(DST_file_tab(entry)) |
| 535 | + ((int) DST_file_tab(entry).number_of_files |
| 536 | - dst_dummy_array_size) * sizeof(dst_file_desc_t); |
| 537 | break; |
| 538 | case dst_typ_block: |
| 539 | size = sizeof(DST_block(entry)) |
| 540 | + ((int) DST_block(entry).n_of_code_ranges |
| 541 | - dst_dummy_array_size) * sizeof(dst_code_range_t); |
| 542 | break; |
| 543 | case dst_typ_5: |
| 544 | size = -1; |
| 545 | break; |
| 546 | case dst_typ_var: |
| 547 | size = sizeof(DST_var(entry)) - |
| 548 | sizeof(dst_var_loc_long_t) * dst_dummy_array_size + |
| 549 | DST_var(entry).no_of_locs * |
| 550 | ( DST_var(entry).short_locs ? |
| 551 | sizeof(dst_var_loc_short_t): |
| 552 | sizeof(dst_var_loc_long_t)); |
| 553 | break; |
| 554 | case dst_typ_pointer: |
| 555 | size = sizeof(DST_pointer(entry)); |
| 556 | break; |
| 557 | case dst_typ_array: |
| 558 | size = sizeof(DST_array(entry)); |
| 559 | break; |
| 560 | case dst_typ_subrange: |
| 561 | size = sizeof(DST_subrange(entry)); |
| 562 | break; |
| 563 | case dst_typ_set: |
| 564 | size = sizeof(DST_set(entry)); |
| 565 | break; |
| 566 | case dst_typ_implicit_enum: |
| 567 | size = sizeof(DST_implicit_enum(entry)) |
| 568 | + ((int) DST_implicit_enum(entry).nelems |
| 569 | - dst_dummy_array_size) * sizeof(dst_rel_offset_t); |
| 570 | break; |
| 571 | case dst_typ_explicit_enum: |
| 572 | size = sizeof(DST_explicit_enum(entry)) |
| 573 | + ((int) DST_explicit_enum(entry).nelems |
| 574 | - dst_dummy_array_size) * sizeof(dst_enum_elem_t); |
| 575 | break; |
| 576 | case dst_typ_short_rec: |
| 577 | size = sizeof(DST_short_rec(entry)) |
| 578 | + DST_short_rec(entry).nfields * sizeof(dst_short_field_t) |
| 579 | - dst_dummy_array_size * sizeof(dst_field_t); |
| 580 | break; |
| 581 | case dst_typ_short_union: |
| 582 | size = sizeof(DST_short_union(entry)) |
| 583 | + DST_short_union(entry).nfields * sizeof(dst_short_field_t) |
| 584 | - dst_dummy_array_size * sizeof(dst_field_t); |
| 585 | break; |
| 586 | case dst_typ_file: |
| 587 | size = sizeof(DST_file(entry)); |
| 588 | break; |
| 589 | case dst_typ_offset: |
| 590 | size = sizeof(DST_offset(entry)); |
| 591 | break; |
| 592 | case dst_typ_alias: |
| 593 | size = sizeof(DST_alias(entry)); |
| 594 | break; |
| 595 | case dst_typ_signature: |
| 596 | size = sizeof(DST_signature(entry)) + |
| 597 | ((int) DST_signature(entry).nargs - |
| 598 | dst_dummy_array_size) * sizeof(dst_arg_t); |
| 599 | break; |
| 600 | case dst_typ_21: |
| 601 | size = -1; |
| 602 | break; |
| 603 | case dst_typ_old_label: |
| 604 | size = sizeof(DST_old_label(entry)); |
| 605 | break; |
| 606 | case dst_typ_scope: |
| 607 | size = sizeof(DST_scope(entry)); |
| 608 | break; |
| 609 | case dst_typ_end_scope: |
| 610 | size = 0; |
| 611 | break; |
| 612 | case dst_typ_25: |
| 613 | case dst_typ_26: |
| 614 | size = -1; |
| 615 | break; |
| 616 | case dst_typ_string_tab: |
| 617 | case dst_typ_global_name_tab: |
| 618 | size = sizeof(DST_string_tab(entry)) |
| 619 | + DST_string_tab(entry).length |
| 620 | - dst_dummy_array_size; |
| 621 | break; |
| 622 | case dst_typ_forward: |
| 623 | size = sizeof(DST_forward(entry)); |
| 624 | get_dst_entry((char *) entry + DST_forward(entry).rec_off, &entry); |
| 625 | break; |
| 626 | case dst_typ_aux_size: |
| 627 | size = sizeof(DST_aux_size(entry)); |
| 628 | break; |
| 629 | case dst_typ_aux_align: |
| 630 | size = sizeof(DST_aux_align(entry)); |
| 631 | break; |
| 632 | case dst_typ_aux_field_size: |
| 633 | size = sizeof(DST_aux_field_size(entry)); |
| 634 | break; |
| 635 | case dst_typ_aux_field_off: |
| 636 | size = sizeof(DST_aux_field_off(entry)); |
| 637 | break; |
| 638 | case dst_typ_aux_field_align: |
| 639 | size = sizeof(DST_aux_field_align(entry)); |
| 640 | break; |
| 641 | case dst_typ_aux_qual: |
| 642 | size = sizeof(DST_aux_qual(entry)); |
| 643 | break; |
| 644 | case dst_typ_aux_var_bound: |
| 645 | size = sizeof(DST_aux_var_bound(entry)); |
| 646 | break; |
| 647 | case dst_typ_extension: |
| 648 | size = DST_extension(entry).rec_size; |
| 649 | break; |
| 650 | case dst_typ_string: |
| 651 | size = sizeof(DST_string(entry)); |
| 652 | break; |
| 653 | case dst_typ_old_entry: |
| 654 | size = 48; /* Obsolete entry type */ |
| 655 | break; |
| 656 | case dst_typ_const: |
| 657 | size = sizeof(DST_const(entry)) |
| 658 | + DST_const(entry).value.length |
| 659 | - sizeof(DST_const(entry).value.val); |
| 660 | break; |
| 661 | case dst_typ_reference: |
| 662 | size = sizeof(DST_reference(entry)); |
| 663 | break; |
| 664 | case dst_typ_old_record: |
| 665 | case dst_typ_old_union: |
| 666 | case dst_typ_record: |
| 667 | case dst_typ_union: |
| 668 | size = sizeof(DST_record(entry)) |
| 669 | + ((int) DST_record(entry).nfields |
| 670 | - dst_dummy_array_size) * sizeof(dst_field_t); |
| 671 | break; |
| 672 | case dst_typ_aux_type_deriv: |
| 673 | size = sizeof(DST_aux_type_deriv(entry)); |
| 674 | break; |
| 675 | case dst_typ_locpool: |
| 676 | size = sizeof(DST_locpool(entry)) |
| 677 | + ((int) DST_locpool(entry).length - |
| 678 | dst_dummy_array_size); |
| 679 | break; |
| 680 | case dst_typ_variable: |
| 681 | size = sizeof(DST_variable(entry)); |
| 682 | break; |
| 683 | case dst_typ_label: |
| 684 | size = sizeof(DST_label(entry)); |
| 685 | break; |
| 686 | case dst_typ_entry: |
| 687 | size = sizeof(DST_entry(entry)); |
| 688 | break; |
| 689 | case dst_typ_aux_lifetime: |
| 690 | size = sizeof(DST_aux_lifetime(entry)); |
| 691 | break; |
| 692 | case dst_typ_aux_ptr_base: |
| 693 | size = sizeof(DST_aux_ptr_base(entry)); |
| 694 | break; |
| 695 | case dst_typ_aux_src_range: |
| 696 | size = sizeof(DST_aux_src_range(entry)); |
| 697 | break; |
| 698 | case dst_typ_aux_reg_val: |
| 699 | size = sizeof(DST_aux_reg_val(entry)); |
| 700 | break; |
| 701 | case dst_typ_aux_unit_names: |
| 702 | size = sizeof(DST_aux_unit_names(entry)) |
| 703 | + ((int) DST_aux_unit_names(entry).number_of_names |
| 704 | - dst_dummy_array_size) * sizeof(dst_rel_offset_t); |
| 705 | break; |
| 706 | case dst_typ_aux_sect_info: |
| 707 | size = sizeof(DST_aux_sect_info(entry)) |
| 708 | + ((int) DST_aux_sect_info(entry).number_of_refs |
| 709 | - dst_dummy_array_size) * sizeof(dst_sect_ref_t); |
| 710 | break; |
| 711 | default: |
| 712 | size = -1; |
| 713 | break; |
| 714 | } |
| 715 | if (size == -1) |
| 716 | { |
| 717 | fprintf_unfiltered(gdb_stderr, "Warning: unexpected DST entry type (%d) found\nLast valid entry was of type: %d\n", |
| 718 | (int) entry->rec_type, |
| 719 | last_type); |
| 720 | fprintf_unfiltered(gdb_stderr, "Last unknown_3 value: %d\n", lu3); |
| 721 | size = 0; |
| 722 | } |
| 723 | else |
| 724 | last_type = entry->rec_type; |
| 725 | if (size & 1) /* Align on a word boundary */ |
| 726 | size++; |
| 727 | size += 2; |
| 728 | *ret_entry = entry; |
| 729 | return size; |
| 730 | } |
| 731 | |
| 732 | static int next_dst_entry(buffer, entry, table) |
| 733 | char **buffer; |
| 734 | dst_rec_ptr_t *entry; |
| 735 | dst_sec *table; |
| 736 | { |
| 737 | if (*buffer - table->buffer >= table->size) |
| 738 | { |
| 739 | *entry = NULL; |
| 740 | return 0; |
| 741 | } |
| 742 | *buffer += get_dst_entry(*buffer, entry); |
| 743 | return 1; |
| 744 | } |
| 745 | |
| 746 | #define NEXT_BLK(a, b) next_dst_entry(a, b, &blocks_info) |
| 747 | #define NEXT_SYM(a, b) next_dst_entry(a, b, &symbols_info) |
| 748 | #define DST_OFFSET(a, b) ((char *) (a) + (b)) |
| 749 | |
| 750 | static dst_rec_ptr_t section_table = NULL; |
| 751 | |
| 752 | char * |
| 753 | get_sec_ref(ref) |
| 754 | dst_sect_ref_t *ref; |
| 755 | { |
| 756 | dst_sec *section = NULL; |
| 757 | long offset; |
| 758 | |
| 759 | if (!section_table || !ref->sect_index) |
| 760 | return NULL; |
| 761 | offset = DST_section_tab(section_table).section_base[ref->sect_index-1] |
| 762 | + ref->sect_offset; |
| 763 | if (offset >= blocks_info.base && |
| 764 | offset < blocks_info.base + blocks_info.size) |
| 765 | section = &blocks_info; |
| 766 | else if (offset >= symbols_info.base && |
| 767 | offset < symbols_info.base + symbols_info.size) |
| 768 | section = &symbols_info; |
| 769 | else if (offset >= lines_info.base && |
| 770 | offset < lines_info.base + lines_info.size) |
| 771 | section = &lines_info; |
| 772 | if (!section) |
| 773 | return NULL; |
| 774 | return section->buffer + (offset - section->base); |
| 775 | } |
| 776 | |
| 777 | CORE_ADDR |
| 778 | dst_get_addr(int section, long offset) |
| 779 | { |
| 780 | if (!section_table || !section) |
| 781 | return 0; |
| 782 | return DST_section_tab(section_table).section_base[section-1] + offset; |
| 783 | } |
| 784 | |
| 785 | CORE_ADDR |
| 786 | dst_sym_addr(ref) |
| 787 | dst_sect_ref_t *ref; |
| 788 | { |
| 789 | if (!section_table || !ref->sect_index) |
| 790 | return 0; |
| 791 | return DST_section_tab(section_table).section_base[ref->sect_index-1] |
| 792 | + ref->sect_offset; |
| 793 | } |
| 794 | |
| 795 | static struct type * |
| 796 | create_new_type(objfile) |
| 797 | struct objfile *objfile; |
| 798 | { |
| 799 | struct type *type; |
| 800 | |
| 801 | type = (struct type *) |
| 802 | obstack_alloc (&objfile->symbol_obstack, sizeof (struct type)); |
| 803 | memset(type, 0, sizeof(struct type)); |
| 804 | return type; |
| 805 | } |
| 806 | |
| 807 | static struct symbol * |
| 808 | create_new_symbol(objfile, name) |
| 809 | struct objfile *objfile; |
| 810 | char *name; |
| 811 | { |
| 812 | struct symbol *sym = (struct symbol *) |
| 813 | obstack_alloc (&objfile->symbol_obstack, sizeof (struct symbol)); |
| 814 | memset (sym, 0, sizeof (struct symbol)); |
| 815 | SYMBOL_NAME (sym) = obstack_copy0 (&objfile->symbol_obstack, |
| 816 | name, strlen (name)); |
| 817 | SYMBOL_VALUE (sym) = 0; |
| 818 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; |
| 819 | |
| 820 | SYMBOL_CLASS (sym) = LOC_BLOCK; |
| 821 | return sym; |
| 822 | }; |
| 823 | |
| 824 | static struct type * |
| 825 | decode_dst_type PARAMS ((struct objfile *, dst_rec_ptr_t)); |
| 826 | |
| 827 | static struct type * |
| 828 | decode_type_desc(objfile, type_desc, base) |
| 829 | struct objfile *objfile; |
| 830 | dst_type_t *type_desc; |
| 831 | dst_rec_ptr_t base; |
| 832 | { |
| 833 | struct type *type; |
| 834 | dst_rec_ptr_t entry; |
| 835 | if (type_desc->std_type.user_defined_type) |
| 836 | { |
| 837 | entry = (dst_rec_ptr_t) DST_OFFSET(base, |
| 838 | dst_user_type_offset(*type_desc)); |
| 839 | type = decode_dst_type(objfile, entry); |
| 840 | } |
| 841 | else |
| 842 | { |
| 843 | switch(type_desc->std_type.dtc) |
| 844 | { |
| 845 | case dst_int8_type: |
| 846 | type = builtin_type_signed_char; |
| 847 | break; |
| 848 | case dst_int16_type: |
| 849 | type = builtin_type_short; |
| 850 | break; |
| 851 | case dst_int32_type: |
| 852 | type = builtin_type_long; |
| 853 | break; |
| 854 | case dst_uint8_type: |
| 855 | type = builtin_type_unsigned_char; |
| 856 | break; |
| 857 | case dst_uint16_type: |
| 858 | type = builtin_type_unsigned_short; |
| 859 | break; |
| 860 | case dst_uint32_type: |
| 861 | type = builtin_type_unsigned_long; |
| 862 | break; |
| 863 | case dst_real32_type: |
| 864 | type = builtin_type_float; |
| 865 | break; |
| 866 | case dst_real64_type: |
| 867 | type = builtin_type_double; |
| 868 | break; |
| 869 | case dst_complex_type: |
| 870 | type = builtin_type_complex; |
| 871 | break; |
| 872 | case dst_dcomplex_type: |
| 873 | type = builtin_type_double_complex; |
| 874 | break; |
| 875 | case dst_bool8_type: |
| 876 | type = builtin_type_char; |
| 877 | break; |
| 878 | case dst_bool16_type: |
| 879 | type = builtin_type_short; |
| 880 | break; |
| 881 | case dst_bool32_type: |
| 882 | type = builtin_type_long; |
| 883 | break; |
| 884 | case dst_char_type: |
| 885 | type = builtin_type_char; |
| 886 | break; |
| 887 | /* The next few are more complex. I will take care |
| 888 | * of them properly at a later point. |
| 889 | */ |
| 890 | case dst_string_type: |
| 891 | type = builtin_type_void; |
| 892 | break; |
| 893 | case dst_ptr_type: |
| 894 | type = builtin_type_void; |
| 895 | break; |
| 896 | case dst_set_type: |
| 897 | type = builtin_type_void; |
| 898 | break; |
| 899 | case dst_proc_type: |
| 900 | type = builtin_type_void; |
| 901 | break; |
| 902 | case dst_func_type: |
| 903 | type = builtin_type_void; |
| 904 | break; |
| 905 | /* Back tto some ordinary ones */ |
| 906 | case dst_void_type: |
| 907 | type = builtin_type_void; |
| 908 | break; |
| 909 | case dst_uchar_type: |
| 910 | type = builtin_type_unsigned_char; |
| 911 | break; |
| 912 | default: |
| 913 | type = builtin_type_void; |
| 914 | break; |
| 915 | } |
| 916 | } |
| 917 | return type; |
| 918 | } |
| 919 | |
| 920 | struct structure_list |
| 921 | { |
| 922 | struct structure_list *next; |
| 923 | struct type *type; |
| 924 | }; |
| 925 | |
| 926 | static struct structure_list *struct_list = NULL; |
| 927 | |
| 928 | static struct type * |
| 929 | find_dst_structure(name) |
| 930 | char *name; |
| 931 | { |
| 932 | struct structure_list *element; |
| 933 | |
| 934 | for (element = struct_list; element; element = element->next) |
| 935 | if (!strcmp(name, TYPE_NAME(element->type))) |
| 936 | return element->type; |
| 937 | return NULL; |
| 938 | } |
| 939 | |
| 940 | |
| 941 | static struct type * |
| 942 | decode_dst_structure(objfile, entry, code, version) |
| 943 | struct objfile *objfile; |
| 944 | dst_rec_ptr_t entry; |
| 945 | int code; |
| 946 | int version; |
| 947 | { |
| 948 | struct type *type, *child_type; |
| 949 | char *struct_name; |
| 950 | char *name, *field_name; |
| 951 | int i; |
| 952 | int fieldoffset, fieldsize; |
| 953 | dst_type_t type_desc; |
| 954 | struct structure_list *element; |
| 955 | |
| 956 | struct_name = DST_OFFSET(entry, DST_record(entry).noffset); |
| 957 | name = concat( (code == TYPE_CODE_UNION)?"union ":"struct ", |
| 958 | struct_name, NULL); |
| 959 | type = find_dst_structure(name); |
| 960 | if (type) |
| 961 | { |
| 962 | free((PTR) name); |
| 963 | return type; |
| 964 | } |
| 965 | type = create_new_type(objfile); |
| 966 | TYPE_NAME(type) = obstack_copy0 (&objfile->symbol_obstack, |
| 967 | name, strlen(name)); |
| 968 | free((PTR) name); |
| 969 | TYPE_CODE(type) = code; |
| 970 | TYPE_LENGTH(type) = DST_record(entry).size; |
| 971 | TYPE_NFIELDS(type) = DST_record(entry).nfields; |
| 972 | TYPE_FIELDS(type) = (struct field *) |
| 973 | obstack_alloc (&objfile->symbol_obstack, sizeof (struct field) * |
| 974 | DST_record(entry).nfields); |
| 975 | fieldoffset = fieldsize = 0; |
| 976 | INIT_CPLUS_SPECIFIC(type); |
| 977 | element = (struct structure_list *) |
| 978 | xmalloc(sizeof(struct structure_list)); |
| 979 | element->type = type; |
| 980 | element->next = struct_list; |
| 981 | struct_list = element; |
| 982 | for (i = 0; i < DST_record(entry).nfields; i++) |
| 983 | { |
| 984 | switch (version) |
| 985 | { |
| 986 | case 2: |
| 987 | field_name = DST_OFFSET(entry, |
| 988 | DST_record(entry).f.ofields[i].noffset); |
| 989 | fieldoffset = DST_record(entry).f.ofields[i].foffset*8 + |
| 990 | DST_record(entry).f.ofields[i].bit_offset; |
| 991 | fieldsize = DST_record(entry).f.ofields[i].size; |
| 992 | type_desc = DST_record(entry).f.ofields[i].type_desc; |
| 993 | break; |
| 994 | case 1: |
| 995 | field_name = DST_OFFSET(entry, |
| 996 | DST_record(entry).f.fields[i].noffset); |
| 997 | type_desc = DST_record(entry).f.fields[i].type_desc; |
| 998 | switch(DST_record(entry).f.fields[i].f.field_loc.format_tag) |
| 999 | { |
| 1000 | case dst_field_byte: |
| 1001 | fieldoffset = DST_record(entry).f. |
| 1002 | fields[i].f.field_byte.offset * 8; |
| 1003 | fieldsize = -1; |
| 1004 | break; |
| 1005 | case dst_field_bit: |
| 1006 | fieldoffset = DST_record(entry).f. |
| 1007 | fields[i].f.field_bit.byte_offset * 8 + |
| 1008 | DST_record(entry).f. |
| 1009 | fields[i].f.field_bit.bit_offset; |
| 1010 | fieldsize = DST_record(entry).f. |
| 1011 | fields[i].f.field_bit.nbits; |
| 1012 | break; |
| 1013 | case dst_field_loc: |
| 1014 | fieldoffset += fieldsize; |
| 1015 | fieldsize = -1; |
| 1016 | break; |
| 1017 | } |
| 1018 | break; |
| 1019 | case 0: |
| 1020 | field_name = DST_OFFSET(entry, |
| 1021 | DST_record(entry).f.sfields[i].noffset); |
| 1022 | fieldoffset = DST_record(entry).f.sfields[i].foffset; |
| 1023 | type_desc = DST_record(entry).f.sfields[i].type_desc; |
| 1024 | if (i < DST_record(entry).nfields - 1) |
| 1025 | fieldsize = DST_record(entry).f.sfields[i+1].foffset; |
| 1026 | else |
| 1027 | fieldsize = DST_record(entry).size; |
| 1028 | fieldsize -= fieldoffset; |
| 1029 | fieldoffset *= 8; |
| 1030 | fieldsize *= 8; |
| 1031 | } |
| 1032 | TYPE_FIELDS(type)[i].name = |
| 1033 | obstack_copy0 (&objfile->symbol_obstack, |
| 1034 | field_name, strlen(field_name)); |
| 1035 | TYPE_FIELDS(type)[i].type = decode_type_desc(objfile, |
| 1036 | &type_desc, |
| 1037 | entry); |
| 1038 | if (fieldsize == -1) |
| 1039 | fieldsize = TYPE_LENGTH(TYPE_FIELDS(type)[i].type) * |
| 1040 | 8; |
| 1041 | TYPE_FIELDS(type)[i].bitsize = fieldsize; |
| 1042 | TYPE_FIELDS(type)[i].bitpos = fieldoffset; |
| 1043 | } |
| 1044 | return type; |
| 1045 | } |
| 1046 | |
| 1047 | static struct type * |
| 1048 | decode_dst_type(objfile, entry) |
| 1049 | struct objfile *objfile; |
| 1050 | dst_rec_ptr_t entry; |
| 1051 | { |
| 1052 | struct type *child_type, *type, *range_type, *index_type; |
| 1053 | |
| 1054 | switch(entry->rec_type) |
| 1055 | { |
| 1056 | case dst_typ_var: |
| 1057 | return decode_type_desc(objfile, |
| 1058 | &DST_var(entry).type_desc, |
| 1059 | entry); |
| 1060 | break; |
| 1061 | case dst_typ_variable: |
| 1062 | return decode_type_desc(objfile, |
| 1063 | &DST_variable(entry).type_desc, |
| 1064 | entry); |
| 1065 | break; |
| 1066 | case dst_typ_short_rec: |
| 1067 | return decode_dst_structure(objfile, entry, TYPE_CODE_STRUCT,0); |
| 1068 | case dst_typ_short_union: |
| 1069 | return decode_dst_structure(objfile, entry, TYPE_CODE_UNION, 0); |
| 1070 | case dst_typ_union: |
| 1071 | return decode_dst_structure(objfile, entry, TYPE_CODE_UNION, 1); |
| 1072 | case dst_typ_record: |
| 1073 | return decode_dst_structure(objfile, entry, TYPE_CODE_STRUCT,1); |
| 1074 | case dst_typ_old_union: |
| 1075 | return decode_dst_structure(objfile, entry, TYPE_CODE_UNION, 2); |
| 1076 | case dst_typ_old_record: |
| 1077 | return decode_dst_structure(objfile, entry, TYPE_CODE_STRUCT,2); |
| 1078 | case dst_typ_pointer: |
| 1079 | return make_pointer_type( |
| 1080 | decode_type_desc(objfile, |
| 1081 | &DST_pointer(entry).type_desc, |
| 1082 | entry), |
| 1083 | NULL); |
| 1084 | case dst_typ_array: |
| 1085 | child_type = decode_type_desc(objfile, |
| 1086 | &DST_pointer(entry).type_desc, |
| 1087 | entry); |
| 1088 | index_type = lookup_fundamental_type(objfile, |
| 1089 | FT_INTEGER); |
| 1090 | range_type = create_range_type ((struct type *) NULL, |
| 1091 | index_type, DST_array(entry).lo_bound, |
| 1092 | DST_array(entry).hi_bound); |
| 1093 | return create_array_type ((struct type *) NULL, child_type, |
| 1094 | range_type); |
| 1095 | case dst_typ_alias: |
| 1096 | return decode_type_desc(objfile, |
| 1097 | &DST_alias(entry).type_desc, |
| 1098 | entry); |
| 1099 | default: |
| 1100 | return builtin_type_int; |
| 1101 | } |
| 1102 | } |
| 1103 | |
| 1104 | struct symbol_list { |
| 1105 | struct symbol_list *next; |
| 1106 | struct symbol *symbol; |
| 1107 | }; |
| 1108 | |
| 1109 | static struct symbol_list *dst_global_symbols = NULL; |
| 1110 | static int total_globals = 0; |
| 1111 | |
| 1112 | static void |
| 1113 | decode_dst_locstring(locstr, sym) |
| 1114 | char *locstr; |
| 1115 | struct symbol *sym; |
| 1116 | { |
| 1117 | dst_loc_entry_t *entry, *next_entry; |
| 1118 | CORE_ADDR temp; |
| 1119 | int count = 0; |
| 1120 | |
| 1121 | while(1) |
| 1122 | { |
| 1123 | if (count++ == 100) |
| 1124 | { |
| 1125 | fprintf_unfiltered(gdb_stderr, "Error reading locstring\n"); |
| 1126 | break; |
| 1127 | } |
| 1128 | entry = (dst_loc_entry_t *) locstr; |
| 1129 | next_entry = (dst_loc_entry_t *) (locstr + 1); |
| 1130 | switch (entry->header.code) |
| 1131 | { |
| 1132 | case dst_lsc_end: /* End of string */ |
| 1133 | return; |
| 1134 | case dst_lsc_indirect:/* Indirect through previous. Arg == 6 */ |
| 1135 | /* Or register ax x == arg */ |
| 1136 | if (entry->header.arg < 6) |
| 1137 | { |
| 1138 | SYMBOL_CLASS(sym) = LOC_REGISTER; |
| 1139 | SYMBOL_VALUE(sym) = entry->header.arg + 8; |
| 1140 | } |
| 1141 | /* We predict indirects */ |
| 1142 | locstr++; |
| 1143 | break; |
| 1144 | case dst_lsc_dreg: |
| 1145 | SYMBOL_CLASS(sym) = LOC_REGISTER; |
| 1146 | SYMBOL_VALUE(sym) = entry->header.arg; |
| 1147 | locstr++; |
| 1148 | break; |
| 1149 | case dst_lsc_section:/* Section (arg+1) */ |
| 1150 | SYMBOL_VALUE(sym) = dst_get_addr(entry->header.arg+1, 0); |
| 1151 | locstr++; |
| 1152 | break; |
| 1153 | case dst_lsc_sec_byte: /* Section (next_byte+1) */ |
| 1154 | SYMBOL_VALUE(sym) = dst_get_addr(locstr[1]+1, 0); |
| 1155 | locstr+=2; |
| 1156 | break; |
| 1157 | case dst_lsc_add: /* Add (arg+1)*2 */ |
| 1158 | case dst_lsc_sub: /* Subtract (arg+1)*2 */ |
| 1159 | temp = (entry->header.arg + 1) * 2; |
| 1160 | locstr++; |
| 1161 | if (*locstr == dst_multiply_256) |
| 1162 | { |
| 1163 | temp <<= 8; |
| 1164 | locstr++; |
| 1165 | } |
| 1166 | switch(entry->header.code) |
| 1167 | { |
| 1168 | case dst_lsc_add: |
| 1169 | if (SYMBOL_CLASS(sym) == LOC_LOCAL) |
| 1170 | SYMBOL_CLASS(sym) = LOC_ARG; |
| 1171 | SYMBOL_VALUE(sym) += temp; |
| 1172 | break; |
| 1173 | case dst_lsc_sub: |
| 1174 | SYMBOL_VALUE(sym) -= temp; |
| 1175 | break; |
| 1176 | } |
| 1177 | break; |
| 1178 | case dst_lsc_add_byte: |
| 1179 | case dst_lsc_sub_byte: |
| 1180 | switch (entry->header.arg & 0x03) |
| 1181 | { |
| 1182 | case 1: |
| 1183 | temp = (unsigned char) locstr[1]; |
| 1184 | locstr += 2; |
| 1185 | break; |
| 1186 | case 2: |
| 1187 | temp = * (unsigned short *) (locstr + 1); |
| 1188 | locstr += 3; |
| 1189 | break; |
| 1190 | case 3: |
| 1191 | temp = * (unsigned long *) (locstr + 1); |
| 1192 | locstr += 5; |
| 1193 | break; |
| 1194 | } |
| 1195 | if (*locstr == dst_multiply_256) |
| 1196 | { |
| 1197 | temp <<= 8; |
| 1198 | locstr++; |
| 1199 | } |
| 1200 | switch(entry->header.code) |
| 1201 | { |
| 1202 | case dst_lsc_add_byte: |
| 1203 | if (SYMBOL_CLASS(sym) == LOC_LOCAL) |
| 1204 | SYMBOL_CLASS(sym) = LOC_ARG; |
| 1205 | SYMBOL_VALUE(sym) += temp; |
| 1206 | break; |
| 1207 | case dst_lsc_sub_byte: |
| 1208 | SYMBOL_VALUE(sym) -= temp; |
| 1209 | break; |
| 1210 | } |
| 1211 | break; |
| 1212 | case dst_lsc_sbreg: /* Stack base register (frame pointer). Arg==0*/ |
| 1213 | if (next_entry->header.code != dst_lsc_indirect) |
| 1214 | { |
| 1215 | SYMBOL_VALUE(sym) = 0; |
| 1216 | SYMBOL_CLASS(sym) = LOC_STATIC; |
| 1217 | return; |
| 1218 | } |
| 1219 | SYMBOL_VALUE(sym) = 0; |
| 1220 | SYMBOL_CLASS(sym) = LOC_LOCAL; |
| 1221 | locstr++; |
| 1222 | break; |
| 1223 | default: |
| 1224 | SYMBOL_VALUE(sym) = 0; |
| 1225 | SYMBOL_CLASS(sym) = LOC_STATIC; |
| 1226 | return; |
| 1227 | } |
| 1228 | } |
| 1229 | } |
| 1230 | |
| 1231 | static struct symbol_list * |
| 1232 | process_dst_symbols(objfile, entry, name, nsyms_ret) |
| 1233 | struct objfile *objfile; |
| 1234 | dst_rec_ptr_t entry; |
| 1235 | char *name; |
| 1236 | int *nsyms_ret; |
| 1237 | { |
| 1238 | struct symbol_list *list = NULL, *element; |
| 1239 | struct symbol *sym; |
| 1240 | char *symname; |
| 1241 | int nsyms = 0; |
| 1242 | char *location; |
| 1243 | long line; |
| 1244 | dst_type_t symtype; |
| 1245 | struct type *type; |
| 1246 | dst_var_attr_t attr; |
| 1247 | dst_var_loc_t loc_type; |
| 1248 | unsigned loc_index; |
| 1249 | long loc_value; |
| 1250 | |
| 1251 | if (!entry) |
| 1252 | { |
| 1253 | *nsyms_ret = 0; |
| 1254 | return NULL; |
| 1255 | } |
| 1256 | location = (char *) entry; |
| 1257 | while (NEXT_SYM(&location, &entry) && |
| 1258 | entry->rec_type != dst_typ_end_scope) |
| 1259 | { |
| 1260 | if (entry->rec_type == dst_typ_var) |
| 1261 | { |
| 1262 | if (DST_var(entry).short_locs) |
| 1263 | { |
| 1264 | loc_type = DST_var(entry).locs.shorts[0].loc_type; |
| 1265 | loc_index = DST_var(entry).locs.shorts[0].loc_index; |
| 1266 | loc_value = DST_var(entry).locs.shorts[0].location; |
| 1267 | } |
| 1268 | else |
| 1269 | { |
| 1270 | loc_type = DST_var(entry).locs.longs[0].loc_type; |
| 1271 | loc_index = DST_var(entry).locs.longs[0].loc_index; |
| 1272 | loc_value = DST_var(entry).locs.longs[0].location; |
| 1273 | } |
| 1274 | if (loc_type == dst_var_loc_external) |
| 1275 | continue; |
| 1276 | symname = DST_OFFSET(entry, DST_var(entry).noffset); |
| 1277 | line = DST_var(entry).src_loc.line_number; |
| 1278 | symtype = DST_var(entry).type_desc; |
| 1279 | attr = DST_var(entry).attributes; |
| 1280 | } |
| 1281 | else if (entry->rec_type == dst_typ_variable) |
| 1282 | { |
| 1283 | symname = DST_OFFSET(entry, |
| 1284 | DST_variable(entry).noffset); |
| 1285 | line = DST_variable(entry).src_loc.line_number; |
| 1286 | symtype = DST_variable(entry).type_desc; |
| 1287 | attr = DST_variable(entry).attributes; |
| 1288 | } |
| 1289 | else |
| 1290 | { |
| 1291 | continue; |
| 1292 | } |
| 1293 | if (symname && name && !strcmp(symname, name)) |
| 1294 | /* It's the function return value */ |
| 1295 | continue; |
| 1296 | sym = create_new_symbol(objfile, symname); |
| 1297 | |
| 1298 | if ((attr & (1<<dst_var_attr_global)) || |
| 1299 | (attr & (1<<dst_var_attr_static))) |
| 1300 | SYMBOL_CLASS(sym) = LOC_STATIC; |
| 1301 | else |
| 1302 | SYMBOL_CLASS(sym) = LOC_LOCAL; |
| 1303 | SYMBOL_LINE(sym) = line; |
| 1304 | SYMBOL_TYPE(sym) = decode_type_desc(objfile, &symtype, |
| 1305 | entry); |
| 1306 | SYMBOL_VALUE(sym) = 0; |
| 1307 | switch (entry->rec_type) |
| 1308 | { |
| 1309 | case dst_typ_var: |
| 1310 | switch(loc_type) |
| 1311 | { |
| 1312 | case dst_var_loc_abs: |
| 1313 | SYMBOL_VALUE_ADDRESS(sym) = loc_value; |
| 1314 | break; |
| 1315 | case dst_var_loc_sect_off: |
| 1316 | case dst_var_loc_ind_sect_off: /* What is this? */ |
| 1317 | SYMBOL_VALUE_ADDRESS(sym) = dst_get_addr( |
| 1318 | loc_index, |
| 1319 | loc_value); |
| 1320 | break; |
| 1321 | case dst_var_loc_ind_reg_rel: /* What is this? */ |
| 1322 | case dst_var_loc_reg_rel: |
| 1323 | /* If it isn't fp relative, specify the |
| 1324 | * register it's relative to. |
| 1325 | */ |
| 1326 | if (loc_index) |
| 1327 | { |
| 1328 | sym->aux_value.basereg = loc_index; |
| 1329 | } |
| 1330 | SYMBOL_VALUE(sym) = loc_value; |
| 1331 | if (loc_value > 0 && |
| 1332 | SYMBOL_CLASS(sym) == LOC_BASEREG) |
| 1333 | SYMBOL_CLASS(sym) = LOC_BASEREG_ARG; |
| 1334 | break; |
| 1335 | case dst_var_loc_reg: |
| 1336 | SYMBOL_VALUE(sym) = loc_index; |
| 1337 | SYMBOL_CLASS(sym) = LOC_REGISTER; |
| 1338 | break; |
| 1339 | } |
| 1340 | break; |
| 1341 | case dst_typ_variable: |
| 1342 | /* External variable..... don't try to interpret |
| 1343 | * its nonexistant locstring. |
| 1344 | */ |
| 1345 | if (DST_variable(entry).loffset == -1) |
| 1346 | continue; |
| 1347 | decode_dst_locstring(DST_OFFSET(entry, |
| 1348 | DST_variable(entry).loffset), |
| 1349 | sym); |
| 1350 | } |
| 1351 | element = (struct symbol_list *) |
| 1352 | xmalloc(sizeof(struct symbol_list)); |
| 1353 | |
| 1354 | if (attr & (1<<dst_var_attr_global)) |
| 1355 | { |
| 1356 | element->next = dst_global_symbols; |
| 1357 | dst_global_symbols = element; |
| 1358 | total_globals++; |
| 1359 | } |
| 1360 | else |
| 1361 | { |
| 1362 | element->next = list; |
| 1363 | list = element; |
| 1364 | nsyms++; |
| 1365 | } |
| 1366 | element->symbol = sym; |
| 1367 | } |
| 1368 | *nsyms_ret = nsyms; |
| 1369 | return list; |
| 1370 | } |
| 1371 | |
| 1372 | |
| 1373 | static struct symbol * |
| 1374 | process_dst_function(objfile, entry, name, address) |
| 1375 | struct objfile *objfile; |
| 1376 | dst_rec_ptr_t entry; |
| 1377 | char *name; |
| 1378 | CORE_ADDR address; |
| 1379 | { |
| 1380 | struct symbol *sym; |
| 1381 | struct type *type, *ftype; |
| 1382 | dst_rec_ptr_t sym_entry, typ_entry; |
| 1383 | char *location; |
| 1384 | struct symbol_list *element; |
| 1385 | |
| 1386 | type = builtin_type_int; |
| 1387 | sym = create_new_symbol(objfile, name); |
| 1388 | SYMBOL_CLASS(sym) = LOC_BLOCK; |
| 1389 | |
| 1390 | if (entry) |
| 1391 | { |
| 1392 | location = (char *) entry; |
| 1393 | do |
| 1394 | { |
| 1395 | NEXT_SYM(&location, &sym_entry); |
| 1396 | } while (sym_entry && sym_entry->rec_type != dst_typ_signature); |
| 1397 | |
| 1398 | if (sym_entry) |
| 1399 | { |
| 1400 | SYMBOL_LINE(sym) = |
| 1401 | DST_signature(sym_entry).src_loc.line_number; |
| 1402 | if (DST_signature(sym_entry).result) |
| 1403 | { |
| 1404 | typ_entry = (dst_rec_ptr_t) |
| 1405 | DST_OFFSET(sym_entry, |
| 1406 | DST_signature(sym_entry).result); |
| 1407 | type = decode_dst_type(objfile, typ_entry); |
| 1408 | } |
| 1409 | } |
| 1410 | } |
| 1411 | |
| 1412 | if (!type->function_type) |
| 1413 | { |
| 1414 | ftype = create_new_type(objfile); |
| 1415 | type->function_type = ftype; |
| 1416 | ftype->target_type = type; |
| 1417 | ftype->code = TYPE_CODE_FUNC; |
| 1418 | } |
| 1419 | SYMBOL_TYPE(sym) = type->function_type; |
| 1420 | |
| 1421 | /* Now add ourselves to the global symbols list */ |
| 1422 | element = (struct symbol_list *) |
| 1423 | xmalloc(sizeof(struct symbol_list)); |
| 1424 | |
| 1425 | element->next = dst_global_symbols; |
| 1426 | dst_global_symbols = element; |
| 1427 | total_globals++; |
| 1428 | element->symbol = sym; |
| 1429 | |
| 1430 | return sym; |
| 1431 | } |
| 1432 | |
| 1433 | static struct block * |
| 1434 | process_dst_block(objfile, entry) |
| 1435 | struct objfile *objfile; |
| 1436 | dst_rec_ptr_t entry; |
| 1437 | { |
| 1438 | struct block *block; |
| 1439 | struct symbol *function = NULL; |
| 1440 | CORE_ADDR address; |
| 1441 | long size; |
| 1442 | char *name; |
| 1443 | dst_rec_ptr_t child_entry, symbol_entry; |
| 1444 | struct block *child_block; |
| 1445 | int total_symbols = 0; |
| 1446 | struct pending_block *pblock; |
| 1447 | char fake_name[20]; |
| 1448 | static long fake_seq = 0; |
| 1449 | struct symbol_list *symlist, *nextsym; |
| 1450 | int symnum; |
| 1451 | |
| 1452 | if (DST_block(entry).noffset) |
| 1453 | name = DST_OFFSET(entry, DST_block(entry).noffset); |
| 1454 | else |
| 1455 | name = NULL; |
| 1456 | if (DST_block(entry).n_of_code_ranges) |
| 1457 | { |
| 1458 | address = dst_sym_addr( |
| 1459 | &DST_block(entry).code_ranges[0].code_start); |
| 1460 | size = DST_block(entry).code_ranges[0].code_size; |
| 1461 | } |
| 1462 | else |
| 1463 | { |
| 1464 | address = -1; |
| 1465 | size = 0; |
| 1466 | } |
| 1467 | symbol_entry = (dst_rec_ptr_t) get_sec_ref(&DST_block(entry).symbols_start); |
| 1468 | switch(DST_block(entry).block_type) |
| 1469 | { |
| 1470 | /* These are all really functions. Even the "program" type. |
| 1471 | * This is because the Apollo OS was written in Pascal, and |
| 1472 | * in Pascal, the main procedure is described as the Program. |
| 1473 | * Cute, huh? |
| 1474 | */ |
| 1475 | case dst_block_procedure: |
| 1476 | case dst_block_function: |
| 1477 | case dst_block_subroutine: |
| 1478 | case dst_block_program: |
| 1479 | record_minimal_symbol(name, address, mst_text, objfile); |
| 1480 | function = process_dst_function( |
| 1481 | objfile, |
| 1482 | symbol_entry, |
| 1483 | name, |
| 1484 | address); |
| 1485 | enter_all_lines(get_sec_ref(&DST_block(entry).code_ranges[0].lines_start), address); |
| 1486 | break; |
| 1487 | case dst_block_block_data: |
| 1488 | break; |
| 1489 | |
| 1490 | default: |
| 1491 | /* GDB has to call it something, and the module name |
| 1492 | * won't cut it |
| 1493 | */ |
| 1494 | sprintf(fake_name, "block_%08lx", fake_seq++); |
| 1495 | function = process_dst_function( |
| 1496 | objfile, NULL, fake_name, address); |
| 1497 | break; |
| 1498 | } |
| 1499 | symlist = process_dst_symbols(objfile, symbol_entry, |
| 1500 | name, &total_symbols); |
| 1501 | block = (struct block *) |
| 1502 | obstack_alloc (&objfile->symbol_obstack, |
| 1503 | sizeof (struct block) + |
| 1504 | (total_symbols - 1) * sizeof (struct symbol *)); |
| 1505 | |
| 1506 | symnum = 0; |
| 1507 | while (symlist) |
| 1508 | { |
| 1509 | nextsym = symlist->next; |
| 1510 | |
| 1511 | block->sym[symnum] = symlist->symbol; |
| 1512 | |
| 1513 | free((PTR) symlist); |
| 1514 | symlist = nextsym; |
| 1515 | symnum++; |
| 1516 | } |
| 1517 | BLOCK_NSYMS (block) = total_symbols; |
| 1518 | BLOCK_START (block) = address; |
| 1519 | BLOCK_END (block) = address + size; |
| 1520 | BLOCK_SUPERBLOCK (block) = 0; |
| 1521 | if (function) |
| 1522 | { |
| 1523 | SYMBOL_BLOCK_VALUE (function) = block; |
| 1524 | BLOCK_FUNCTION (block) = function; |
| 1525 | } |
| 1526 | else |
| 1527 | BLOCK_FUNCTION (block) = 0; |
| 1528 | |
| 1529 | pblock = (struct pending_block *) |
| 1530 | xmalloc (sizeof (struct pending_block)); |
| 1531 | pblock->block = block; |
| 1532 | pblock->next = pending_blocks; |
| 1533 | pending_blocks = pblock; |
| 1534 | if (DST_block(entry).child_block_off) |
| 1535 | { |
| 1536 | child_entry = (dst_rec_ptr_t) DST_OFFSET(entry, |
| 1537 | DST_block(entry).child_block_off); |
| 1538 | while (child_entry) |
| 1539 | { |
| 1540 | child_block = process_dst_block(objfile, child_entry); |
| 1541 | if (child_block) |
| 1542 | { |
| 1543 | if (BLOCK_START(child_block) < |
| 1544 | BLOCK_START(block) || |
| 1545 | BLOCK_START(block) == -1) |
| 1546 | BLOCK_START(block) = |
| 1547 | BLOCK_START(child_block); |
| 1548 | if (BLOCK_END(child_block) > |
| 1549 | BLOCK_END(block) || |
| 1550 | BLOCK_END(block) == -1) |
| 1551 | BLOCK_END(block) = |
| 1552 | BLOCK_END(child_block); |
| 1553 | BLOCK_SUPERBLOCK (child_block) = block; |
| 1554 | } |
| 1555 | if (DST_block(child_entry).sibling_block_off) |
| 1556 | child_entry = (dst_rec_ptr_t) DST_OFFSET( |
| 1557 | child_entry, |
| 1558 | DST_block(child_entry).sibling_block_off); |
| 1559 | else |
| 1560 | child_entry = NULL; |
| 1561 | } |
| 1562 | } |
| 1563 | return block; |
| 1564 | } |
| 1565 | |
| 1566 | |
| 1567 | static void |
| 1568 | read_dst_symtab (objfile) |
| 1569 | struct objfile *objfile; |
| 1570 | { |
| 1571 | char *buffer; |
| 1572 | dst_rec_ptr_t entry, file_table, root_block; |
| 1573 | char *source_file; |
| 1574 | struct block *block, *global_block; |
| 1575 | struct pending_block *pblock; |
| 1576 | int symnum; |
| 1577 | struct symbol_list *nextsym; |
| 1578 | int module_num = 0; |
| 1579 | struct structure_list *element; |
| 1580 | |
| 1581 | current_objfile = objfile; |
| 1582 | buffer = blocks_info.buffer; |
| 1583 | while (NEXT_BLK(&buffer, &entry)) |
| 1584 | { |
| 1585 | if (entry->rec_type == dst_typ_comp_unit) |
| 1586 | { |
| 1587 | file_table = (dst_rec_ptr_t) DST_OFFSET(entry, |
| 1588 | DST_comp_unit(entry).file_table); |
| 1589 | section_table = (dst_rec_ptr_t) DST_OFFSET(entry, |
| 1590 | DST_comp_unit(entry).section_table); |
| 1591 | root_block = (dst_rec_ptr_t) DST_OFFSET(entry, |
| 1592 | DST_comp_unit(entry).root_block_offset); |
| 1593 | source_file = DST_OFFSET(file_table, |
| 1594 | DST_file_tab(file_table).files[0].noffset); |
| 1595 | /* Point buffer to the start of the next comp_unit */ |
| 1596 | buffer = DST_OFFSET(entry, |
| 1597 | DST_comp_unit(entry).data_size); |
| 1598 | dst_start_symtab(); |
| 1599 | |
| 1600 | pblock = (struct pending_block *) |
| 1601 | xmalloc (sizeof (struct pending_block)); |
| 1602 | pblock->next = NULL; |
| 1603 | pending_blocks = pblock; |
| 1604 | |
| 1605 | block = process_dst_block(objfile, root_block); |
| 1606 | |
| 1607 | global_block = (struct block *) |
| 1608 | obstack_alloc (&objfile->symbol_obstack, |
| 1609 | sizeof (struct block) + |
| 1610 | (total_globals - 1) * |
| 1611 | sizeof (struct symbol *)); |
| 1612 | BLOCK_NSYMS(global_block) = total_globals; |
| 1613 | for (symnum = 0; symnum < total_globals; symnum++) |
| 1614 | { |
| 1615 | nextsym = dst_global_symbols->next; |
| 1616 | |
| 1617 | global_block->sym[symnum] = |
| 1618 | dst_global_symbols->symbol; |
| 1619 | |
| 1620 | free((PTR) dst_global_symbols); |
| 1621 | dst_global_symbols = nextsym; |
| 1622 | } |
| 1623 | dst_global_symbols = NULL; |
| 1624 | total_globals = 0; |
| 1625 | BLOCK_FUNCTION(global_block) = 0; |
| 1626 | BLOCK_START(global_block) = BLOCK_START(block); |
| 1627 | BLOCK_END(global_block) = BLOCK_END(block); |
| 1628 | BLOCK_SUPERBLOCK(global_block) = 0; |
| 1629 | BLOCK_SUPERBLOCK(block) = global_block; |
| 1630 | pblock->block = global_block; |
| 1631 | |
| 1632 | complete_symtab(source_file, |
| 1633 | BLOCK_START(block), |
| 1634 | BLOCK_END(block) - BLOCK_START(block)); |
| 1635 | module_num++; |
| 1636 | dst_end_symtab(objfile); |
| 1637 | } |
| 1638 | } |
| 1639 | if (module_num) |
| 1640 | record_minimal_symbol("<end_of_program>", |
| 1641 | BLOCK_END(block), mst_text, objfile); |
| 1642 | /* One more faked symbol to make sure nothing can ever run off the |
| 1643 | * end of the symbol table. This one represents the end of the |
| 1644 | * text space. It used to be (CORE_ADDR) -1 (effectively the highest |
| 1645 | * int possible), but some parts of gdb treated it as a signed |
| 1646 | * number and failed comparisons. We could equally use 7fffffff, |
| 1647 | * but no functions are ever mapped to an address higher than |
| 1648 | * 40000000 |
| 1649 | */ |
| 1650 | record_minimal_symbol("<end_of_text>", |
| 1651 | (CORE_ADDR) 0x40000000, |
| 1652 | mst_text, objfile); |
| 1653 | while (struct_list) |
| 1654 | { |
| 1655 | element = struct_list; |
| 1656 | struct_list = element->next; |
| 1657 | free((PTR) element); |
| 1658 | } |
| 1659 | } |
| 1660 | |
| 1661 | \f |
| 1662 | /* Support for line number handling */ |
| 1663 | static char *linetab = NULL; |
| 1664 | static long linetab_offset; |
| 1665 | static unsigned long linetab_size; |
| 1666 | |
| 1667 | /* Read in all the line numbers for fast lookups later. Leave them in |
| 1668 | external (unswapped) format in memory; we'll swap them as we enter |
| 1669 | them into GDB's data structures. */ |
| 1670 | static int |
| 1671 | init_one_section(chan, secinfo) |
| 1672 | int chan; |
| 1673 | dst_sec *secinfo; |
| 1674 | { |
| 1675 | if (secinfo->size == 0 |
| 1676 | || lseek(chan, secinfo->position, 0) == -1 |
| 1677 | || (secinfo->buffer = xmalloc(secinfo->size)) == NULL |
| 1678 | || myread(chan, secinfo->buffer, secinfo->size) == -1) |
| 1679 | return 0; |
| 1680 | else |
| 1681 | return 1; |
| 1682 | } |
| 1683 | |
| 1684 | static int |
| 1685 | init_dst_sections (chan) |
| 1686 | int chan; |
| 1687 | { |
| 1688 | |
| 1689 | if (!init_one_section(chan, &blocks_info) || |
| 1690 | !init_one_section(chan, &lines_info) || |
| 1691 | !init_one_section(chan, &symbols_info)) |
| 1692 | return -1; |
| 1693 | else |
| 1694 | return 0; |
| 1695 | } |
| 1696 | |
| 1697 | /* Fake up support for relocating symbol addresses. FIXME. */ |
| 1698 | |
| 1699 | struct section_offsets dst_symfile_faker = {0}; |
| 1700 | |
| 1701 | struct section_offsets * |
| 1702 | dst_symfile_offsets (objfile, addr) |
| 1703 | struct objfile *objfile; |
| 1704 | CORE_ADDR addr; |
| 1705 | { |
| 1706 | objfile->num_sections = 1; |
| 1707 | return &dst_symfile_faker; |
| 1708 | } |
| 1709 | |
| 1710 | /* Register our ability to parse symbols for DST BFD files */ |
| 1711 | |
| 1712 | static struct sym_fns dst_sym_fns = |
| 1713 | { |
| 1714 | /* FIXME: Can this be integrated with coffread.c? If not, should it be |
| 1715 | a separate flavour like ecoff? */ |
| 1716 | (enum bfd_flavour)-2, |
| 1717 | |
| 1718 | dst_new_init, /* sym_new_init: init anything gbl to entire symtab */ |
| 1719 | dst_symfile_init, /* sym_init: read initial info, setup for sym_read() */ |
| 1720 | dst_symfile_read, /* sym_read: read a symbol file into symtab */ |
| 1721 | dst_symfile_finish, /* sym_finish: finished with file, cleanup */ |
| 1722 | dst_symfile_offsets, /* sym_offsets: xlate external to internal form */ |
| 1723 | NULL /* next: pointer to next struct sym_fns */ |
| 1724 | }; |
| 1725 | |
| 1726 | void |
| 1727 | _initialize_dstread () |
| 1728 | { |
| 1729 | add_symtab_fns(&dst_sym_fns); |
| 1730 | } |