| 1 | /* coffgrok.c |
| 2 | Copyright 1994, 1995, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, |
| 3 | 2007, 2009 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Binutils. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 20 | MA 02110-1301, USA. */ |
| 21 | |
| 22 | |
| 23 | /* Written by Steve Chamberlain (sac@cygnus.com) |
| 24 | |
| 25 | This module reads a coff file and builds a really simple type tree |
| 26 | which can be read by other programs. The first application is a |
| 27 | coff->sysroff converter. It can be tested with coffdump.c. */ |
| 28 | |
| 29 | #include "sysdep.h" |
| 30 | #include "bfd.h" |
| 31 | #include "libiberty.h" |
| 32 | |
| 33 | #include "coff/internal.h" |
| 34 | #include "../bfd/libcoff.h" |
| 35 | #include "bucomm.h" |
| 36 | #include "coffgrok.h" |
| 37 | |
| 38 | static int lofile = 1; |
| 39 | static struct coff_scope *top_scope; |
| 40 | static struct coff_scope *file_scope; |
| 41 | static struct coff_ofile *ofile; |
| 42 | |
| 43 | static struct coff_symbol *last_function_symbol; |
| 44 | static struct coff_type *last_function_type; |
| 45 | static struct coff_type *last_struct; |
| 46 | static struct coff_type *last_enum; |
| 47 | static struct coff_sfile *cur_sfile; |
| 48 | |
| 49 | static struct coff_symbol **tindex; |
| 50 | |
| 51 | |
| 52 | static asymbol **syms; |
| 53 | static long symcount; |
| 54 | |
| 55 | #define N(x) ((x)->_n._n_nptr[1]) |
| 56 | |
| 57 | static struct coff_ptr_struct *rawsyms; |
| 58 | static int rawcount; |
| 59 | static bfd *abfd; |
| 60 | |
| 61 | #define PTR_SIZE 4 |
| 62 | #define SHORT_SIZE 2 |
| 63 | #define INT_SIZE 4 |
| 64 | #define LONG_SIZE 4 |
| 65 | #define FLOAT_SIZE 4 |
| 66 | #define DOUBLE_SIZE 8 |
| 67 | |
| 68 | #define INDEXOF(p) ((struct coff_ptr_struct *)(p)-(rawsyms)) |
| 69 | |
| 70 | static struct coff_scope *empty_scope (void); |
| 71 | static struct coff_symbol *empty_symbol (void); |
| 72 | static void push_scope (int); |
| 73 | static void pop_scope (void); |
| 74 | static void do_sections_p1 (struct coff_ofile *); |
| 75 | static void do_sections_p2 (struct coff_ofile *); |
| 76 | static struct coff_where *do_where (int); |
| 77 | static struct coff_line *do_lines (int, char *); |
| 78 | static struct coff_type *do_type (int); |
| 79 | static struct coff_visible *do_visible (int); |
| 80 | static int do_define (int, struct coff_scope *); |
| 81 | static struct coff_ofile *doit (void); |
| 82 | |
| 83 | static struct coff_scope * |
| 84 | empty_scope (void) |
| 85 | { |
| 86 | struct coff_scope *l; |
| 87 | l = (struct coff_scope *) (xcalloc (sizeof (struct coff_scope), 1)); |
| 88 | return l; |
| 89 | } |
| 90 | |
| 91 | static struct coff_symbol * |
| 92 | empty_symbol (void) |
| 93 | { |
| 94 | return (struct coff_symbol *) (xcalloc (sizeof (struct coff_symbol), 1)); |
| 95 | } |
| 96 | |
| 97 | /*int l;*/ |
| 98 | static void |
| 99 | push_scope (int slink) |
| 100 | { |
| 101 | struct coff_scope *n = empty_scope (); |
| 102 | |
| 103 | if (slink) |
| 104 | { |
| 105 | if (top_scope) |
| 106 | { |
| 107 | if (top_scope->list_tail) |
| 108 | { |
| 109 | top_scope->list_tail->next = n; |
| 110 | } |
| 111 | else |
| 112 | { |
| 113 | top_scope->list_head = n; |
| 114 | } |
| 115 | top_scope->list_tail = n; |
| 116 | } |
| 117 | } |
| 118 | n->parent = top_scope; |
| 119 | |
| 120 | top_scope = n; |
| 121 | } |
| 122 | |
| 123 | static void |
| 124 | pop_scope (void) |
| 125 | { |
| 126 | top_scope = top_scope->parent; |
| 127 | } |
| 128 | |
| 129 | static void |
| 130 | do_sections_p1 (struct coff_ofile *head) |
| 131 | { |
| 132 | asection *section; |
| 133 | int idx; |
| 134 | struct coff_section *all = (struct coff_section *) (xcalloc (abfd->section_count + 1, |
| 135 | sizeof (struct coff_section))); |
| 136 | head->nsections = abfd->section_count + 1; |
| 137 | head->sections = all; |
| 138 | |
| 139 | for (idx = 0, section = abfd->sections; section; section = section->next, idx++) |
| 140 | { |
| 141 | long relsize; |
| 142 | int i = section->target_index; |
| 143 | arelent **relpp; |
| 144 | long relcount; |
| 145 | |
| 146 | relsize = bfd_get_reloc_upper_bound (abfd, section); |
| 147 | if (relsize < 0) |
| 148 | bfd_fatal (bfd_get_filename (abfd)); |
| 149 | if (relsize == 0) |
| 150 | continue; |
| 151 | relpp = (arelent **) xmalloc (relsize); |
| 152 | relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms); |
| 153 | if (relcount < 0) |
| 154 | bfd_fatal (bfd_get_filename (abfd)); |
| 155 | |
| 156 | head->sections[i].name = (char *) (section->name); |
| 157 | head->sections[i].code = section->flags & SEC_CODE; |
| 158 | head->sections[i].data = section->flags & SEC_DATA; |
| 159 | if (strcmp (section->name, ".bss") == 0) |
| 160 | head->sections[i].data = 1; |
| 161 | head->sections[i].address = section->lma; |
| 162 | head->sections[i].size = bfd_get_section_size (section); |
| 163 | head->sections[i].number = idx; |
| 164 | head->sections[i].nrelocs = section->reloc_count; |
| 165 | head->sections[i].relocs = |
| 166 | (struct coff_reloc *) (xcalloc (section->reloc_count, |
| 167 | sizeof (struct coff_reloc))); |
| 168 | head->sections[i].bfd_section = section; |
| 169 | } |
| 170 | head->sections[0].name = "ABSOLUTE"; |
| 171 | head->sections[0].code = 0; |
| 172 | head->sections[0].data = 0; |
| 173 | head->sections[0].address = 0; |
| 174 | head->sections[0].size = 0; |
| 175 | head->sections[0].number = 0; |
| 176 | } |
| 177 | |
| 178 | static void |
| 179 | do_sections_p2 (struct coff_ofile *head) |
| 180 | { |
| 181 | asection *section; |
| 182 | for (section = abfd->sections; section; section = section->next) |
| 183 | { |
| 184 | unsigned int j; |
| 185 | |
| 186 | for (j = 0; j < section->reloc_count; j++) |
| 187 | { |
| 188 | int idx; |
| 189 | int i = section->target_index; |
| 190 | struct coff_reloc *r = head->sections[i].relocs + j; |
| 191 | arelent *sr = section->relocation + j; |
| 192 | r->offset = sr->address; |
| 193 | r->addend = sr->addend; |
| 194 | idx = ((coff_symbol_type *) (sr->sym_ptr_ptr[0]))->native - rawsyms; |
| 195 | r->symbol = tindex[idx]; |
| 196 | } |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | static struct coff_where * |
| 201 | do_where (int i) |
| 202 | { |
| 203 | struct internal_syment *sym = &rawsyms[i].u.syment; |
| 204 | struct coff_where *where = |
| 205 | (struct coff_where *) (xmalloc (sizeof (struct coff_where))); |
| 206 | where->offset = sym->n_value; |
| 207 | |
| 208 | if (sym->n_scnum == -1) |
| 209 | sym->n_scnum = 0; |
| 210 | |
| 211 | switch (sym->n_sclass) |
| 212 | { |
| 213 | case C_FIELD: |
| 214 | where->where = coff_where_member_of_struct; |
| 215 | where->offset = sym->n_value / 8; |
| 216 | where->bitoffset = sym->n_value % 8; |
| 217 | where->bitsize = rawsyms[i + 1].u.auxent.x_sym.x_misc.x_lnsz.x_size; |
| 218 | break; |
| 219 | case C_MOE: |
| 220 | where->where = coff_where_member_of_enum; |
| 221 | break; |
| 222 | case C_MOS: |
| 223 | case C_MOU: |
| 224 | where->where = coff_where_member_of_struct; |
| 225 | break; |
| 226 | case C_AUTO: |
| 227 | case C_ARG: |
| 228 | where->where = coff_where_stack; |
| 229 | break; |
| 230 | case C_EXT: |
| 231 | case C_STAT: |
| 232 | case C_EXTDEF: |
| 233 | case C_LABEL: |
| 234 | where->where = coff_where_memory; |
| 235 | where->section = &ofile->sections[sym->n_scnum]; |
| 236 | break; |
| 237 | case C_REG: |
| 238 | case C_REGPARM: |
| 239 | where->where = coff_where_register; |
| 240 | break; |
| 241 | case C_ENTAG: |
| 242 | where->where = coff_where_entag; |
| 243 | break; |
| 244 | case C_STRTAG: |
| 245 | case C_UNTAG: |
| 246 | where->where = coff_where_strtag; |
| 247 | break; |
| 248 | case C_TPDEF: |
| 249 | where->where = coff_where_typedef; |
| 250 | break; |
| 251 | default: |
| 252 | abort (); |
| 253 | break; |
| 254 | } |
| 255 | return where; |
| 256 | } |
| 257 | |
| 258 | static |
| 259 | struct coff_line * |
| 260 | do_lines (int i, char *name ATTRIBUTE_UNUSED) |
| 261 | { |
| 262 | struct coff_line *res = (struct coff_line *) xcalloc (sizeof (struct coff_line), 1); |
| 263 | asection *s; |
| 264 | unsigned int l; |
| 265 | |
| 266 | /* Find out if this function has any line numbers in the table */ |
| 267 | for (s = abfd->sections; s; s = s->next) |
| 268 | { |
| 269 | for (l = 0; l < s->lineno_count; l++) |
| 270 | { |
| 271 | if (s->lineno[l].line_number == 0) |
| 272 | { |
| 273 | if (rawsyms + i == ((coff_symbol_type *) (&(s->lineno[l].u.sym[0])))->native) |
| 274 | { |
| 275 | /* These lines are for this function - so count them and stick them on */ |
| 276 | int c = 0; |
| 277 | /* Find the linenumber of the top of the function, since coff linenumbers |
| 278 | are relative to the start of the function. */ |
| 279 | int start_line = rawsyms[i + 3].u.auxent.x_sym.x_misc.x_lnsz.x_lnno; |
| 280 | |
| 281 | l++; |
| 282 | for (c = 0; s->lineno[l + c + 1].line_number; c++) |
| 283 | ; |
| 284 | |
| 285 | /* Add two extra records, one for the prologue and one for the epilogue */ |
| 286 | c += 1; |
| 287 | res->nlines = c; |
| 288 | res->lines = (int *) (xcalloc (sizeof (int), c)); |
| 289 | res->addresses = (int *) (xcalloc (sizeof (int), c)); |
| 290 | res->lines[0] = start_line; |
| 291 | res->addresses[0] = rawsyms[i].u.syment.n_value - s->vma; |
| 292 | for (c = 0; s->lineno[l + c + 1].line_number; c++) |
| 293 | { |
| 294 | res->lines[c + 1] = s->lineno[l + c].line_number + start_line - 1; |
| 295 | res->addresses[c + 1] = s->lineno[l + c].u.offset; |
| 296 | } |
| 297 | return res; |
| 298 | } |
| 299 | } |
| 300 | } |
| 301 | } |
| 302 | return res; |
| 303 | } |
| 304 | |
| 305 | static |
| 306 | struct coff_type * |
| 307 | do_type (int i) |
| 308 | { |
| 309 | struct internal_syment *sym = &rawsyms[i].u.syment; |
| 310 | union internal_auxent *aux = &rawsyms[i + 1].u.auxent; |
| 311 | struct coff_type *res = |
| 312 | (struct coff_type *) xmalloc (sizeof (struct coff_type)); |
| 313 | int type = sym->n_type; |
| 314 | int which_dt = 0; |
| 315 | int dimind = 0; |
| 316 | |
| 317 | res->type = coff_basic_type; |
| 318 | res->u.basic = type & 0xf; |
| 319 | |
| 320 | switch (type & 0xf) |
| 321 | { |
| 322 | case T_NULL: |
| 323 | case T_VOID: |
| 324 | if (sym->n_numaux && sym->n_sclass == C_STAT) |
| 325 | { |
| 326 | /* This is probably a section definition */ |
| 327 | res->type = coff_secdef_type; |
| 328 | res->size = aux->x_scn.x_scnlen; |
| 329 | } |
| 330 | else |
| 331 | { |
| 332 | if (type == 0) |
| 333 | { |
| 334 | /* Don't know what this is, let's make it a simple int */ |
| 335 | res->size = INT_SIZE; |
| 336 | res->u.basic = T_UINT; |
| 337 | } |
| 338 | else |
| 339 | { |
| 340 | /* Else it could be a function or pointer to void */ |
| 341 | res->size = 0; |
| 342 | } |
| 343 | } |
| 344 | break; |
| 345 | |
| 346 | |
| 347 | break; |
| 348 | case T_UCHAR: |
| 349 | case T_CHAR: |
| 350 | res->size = 1; |
| 351 | break; |
| 352 | case T_USHORT: |
| 353 | case T_SHORT: |
| 354 | res->size = SHORT_SIZE; |
| 355 | break; |
| 356 | case T_UINT: |
| 357 | case T_INT: |
| 358 | res->size = INT_SIZE; |
| 359 | break; |
| 360 | case T_ULONG: |
| 361 | case T_LONG: |
| 362 | res->size = LONG_SIZE; |
| 363 | break; |
| 364 | case T_FLOAT: |
| 365 | res->size = FLOAT_SIZE; |
| 366 | break; |
| 367 | case T_DOUBLE: |
| 368 | res->size = DOUBLE_SIZE; |
| 369 | break; |
| 370 | case T_STRUCT: |
| 371 | case T_UNION: |
| 372 | if (sym->n_numaux) |
| 373 | { |
| 374 | if (aux->x_sym.x_tagndx.p) |
| 375 | { |
| 376 | /* Referring to a struct defined elsewhere */ |
| 377 | res->type = coff_structref_type; |
| 378 | res->u.astructref.ref = tindex[INDEXOF (aux->x_sym.x_tagndx.p)]; |
| 379 | res->size = res->u.astructref.ref ? |
| 380 | res->u.astructref.ref->type->size : 0; |
| 381 | } |
| 382 | else |
| 383 | { |
| 384 | /* A definition of a struct */ |
| 385 | last_struct = res; |
| 386 | res->type = coff_structdef_type; |
| 387 | res->u.astructdef.elements = empty_scope (); |
| 388 | res->u.astructdef.idx = 0; |
| 389 | res->u.astructdef.isstruct = (type & 0xf) == T_STRUCT; |
| 390 | res->size = aux->x_sym.x_misc.x_lnsz.x_size; |
| 391 | } |
| 392 | } |
| 393 | else |
| 394 | { |
| 395 | /* No auxents - it's anonymous */ |
| 396 | res->type = coff_structref_type; |
| 397 | res->u.astructref.ref = 0; |
| 398 | res->size = 0; |
| 399 | } |
| 400 | break; |
| 401 | case T_ENUM: |
| 402 | if (aux->x_sym.x_tagndx.p) |
| 403 | { |
| 404 | /* Referring to a enum defined elsewhere */ |
| 405 | res->type = coff_enumref_type; |
| 406 | res->u.aenumref.ref = tindex[INDEXOF (aux->x_sym.x_tagndx.p)]; |
| 407 | res->size = res->u.aenumref.ref->type->size; |
| 408 | } |
| 409 | else |
| 410 | { |
| 411 | /* A definition of an enum */ |
| 412 | last_enum = res; |
| 413 | res->type = coff_enumdef_type; |
| 414 | res->u.aenumdef.elements = empty_scope (); |
| 415 | res->size = aux->x_sym.x_misc.x_lnsz.x_size; |
| 416 | } |
| 417 | break; |
| 418 | case T_MOE: |
| 419 | break; |
| 420 | } |
| 421 | |
| 422 | for (which_dt = 5; which_dt >= 0; which_dt--) |
| 423 | { |
| 424 | switch ((type >> ((which_dt * 2) + 4)) & 0x3) |
| 425 | { |
| 426 | case 0: |
| 427 | break; |
| 428 | case DT_ARY: |
| 429 | { |
| 430 | struct coff_type *ptr = ((struct coff_type *) |
| 431 | xmalloc (sizeof (struct coff_type))); |
| 432 | int els = (dimind < DIMNUM |
| 433 | ? aux->x_sym.x_fcnary.x_ary.x_dimen[dimind] |
| 434 | : 0); |
| 435 | ++dimind; |
| 436 | ptr->type = coff_array_type; |
| 437 | ptr->size = els * res->size; |
| 438 | ptr->u.array.dim = els; |
| 439 | ptr->u.array.array_of = res; |
| 440 | res = ptr; |
| 441 | break; |
| 442 | } |
| 443 | case DT_PTR: |
| 444 | { |
| 445 | struct coff_type *ptr = |
| 446 | (struct coff_type *) xmalloc (sizeof (struct coff_type)); |
| 447 | ptr->size = PTR_SIZE; |
| 448 | ptr->type = coff_pointer_type; |
| 449 | ptr->u.pointer.points_to = res; |
| 450 | res = ptr; |
| 451 | break; |
| 452 | } |
| 453 | case DT_FCN: |
| 454 | { |
| 455 | struct coff_type *ptr |
| 456 | = (struct coff_type *) xmalloc (sizeof (struct coff_type)); |
| 457 | ptr->size = 0; |
| 458 | ptr->type = coff_function_type; |
| 459 | ptr->u.function.function_returns = res; |
| 460 | ptr->u.function.parameters = empty_scope (); |
| 461 | ptr->u.function.lines = do_lines (i, sym->_n._n_nptr[1]); |
| 462 | ptr->u.function.code = 0; |
| 463 | last_function_type = ptr; |
| 464 | res = ptr; |
| 465 | break; |
| 466 | } |
| 467 | } |
| 468 | } |
| 469 | return res; |
| 470 | } |
| 471 | |
| 472 | static struct coff_visible * |
| 473 | do_visible (int i) |
| 474 | { |
| 475 | struct internal_syment *sym = &rawsyms[i].u.syment; |
| 476 | struct coff_visible *visible = |
| 477 | (struct coff_visible *) (xmalloc (sizeof (struct coff_visible))); |
| 478 | enum coff_vis_type t; |
| 479 | switch (sym->n_sclass) |
| 480 | { |
| 481 | case C_MOS: |
| 482 | case C_MOU: |
| 483 | case C_FIELD: |
| 484 | t = coff_vis_member_of_struct; |
| 485 | break; |
| 486 | case C_MOE: |
| 487 | t = coff_vis_member_of_enum; |
| 488 | break; |
| 489 | |
| 490 | case C_REGPARM: |
| 491 | t = coff_vis_regparam; |
| 492 | break; |
| 493 | |
| 494 | case C_REG: |
| 495 | t = coff_vis_register; |
| 496 | break; |
| 497 | case C_STRTAG: |
| 498 | case C_UNTAG: |
| 499 | case C_ENTAG: |
| 500 | case C_TPDEF: |
| 501 | t = coff_vis_tag; |
| 502 | break; |
| 503 | case C_AUTOARG: |
| 504 | case C_ARG: |
| 505 | t = coff_vis_autoparam; |
| 506 | break; |
| 507 | case C_AUTO: |
| 508 | |
| 509 | |
| 510 | t = coff_vis_auto; |
| 511 | break; |
| 512 | case C_LABEL: |
| 513 | case C_STAT: |
| 514 | t = coff_vis_int_def; |
| 515 | break; |
| 516 | case C_EXT: |
| 517 | if (sym->n_scnum == N_UNDEF) |
| 518 | { |
| 519 | if (sym->n_value) |
| 520 | t = coff_vis_common; |
| 521 | else |
| 522 | t = coff_vis_ext_ref; |
| 523 | } |
| 524 | else |
| 525 | t = coff_vis_ext_def; |
| 526 | break; |
| 527 | default: |
| 528 | abort (); |
| 529 | break; |
| 530 | |
| 531 | } |
| 532 | visible->type = t; |
| 533 | return visible; |
| 534 | } |
| 535 | |
| 536 | static int |
| 537 | do_define (int i, struct coff_scope *b) |
| 538 | { |
| 539 | static int symbol_index; |
| 540 | struct internal_syment *sym = &rawsyms[i].u.syment; |
| 541 | |
| 542 | /* Define a symbol and attach to block b */ |
| 543 | struct coff_symbol *s = empty_symbol (); |
| 544 | |
| 545 | s->number = ++symbol_index; |
| 546 | s->name = sym->_n._n_nptr[1]; |
| 547 | s->sfile = cur_sfile; |
| 548 | /* Glue onto the ofile list */ |
| 549 | if (lofile >= 0) |
| 550 | { |
| 551 | if (ofile->symbol_list_tail) |
| 552 | ofile->symbol_list_tail->next_in_ofile_list = s; |
| 553 | else |
| 554 | ofile->symbol_list_head = s; |
| 555 | ofile->symbol_list_tail = s; |
| 556 | /* And the block list */ |
| 557 | } |
| 558 | if (b->vars_tail) |
| 559 | b->vars_tail->next = s; |
| 560 | else |
| 561 | b->vars_head = s; |
| 562 | |
| 563 | b->vars_tail = s; |
| 564 | b->nvars++; |
| 565 | s->type = do_type (i); |
| 566 | s->where = do_where (i); |
| 567 | s->visible = do_visible (i); |
| 568 | |
| 569 | tindex[i] = s; |
| 570 | |
| 571 | /* We remember the lowest address in each section for each source file */ |
| 572 | |
| 573 | if (s->where->where == coff_where_memory |
| 574 | && s->type->type == coff_secdef_type) |
| 575 | { |
| 576 | struct coff_isection *is = cur_sfile->section + s->where->section->number; |
| 577 | |
| 578 | if (!is->init) |
| 579 | { |
| 580 | is->low = s->where->offset; |
| 581 | is->high = s->where->offset + s->type->size; |
| 582 | is->init = 1; |
| 583 | is->parent = s->where->section; |
| 584 | } |
| 585 | |
| 586 | } |
| 587 | |
| 588 | if (s->type->type == coff_function_type) |
| 589 | last_function_symbol = s; |
| 590 | |
| 591 | return i + sym->n_numaux + 1; |
| 592 | } |
| 593 | |
| 594 | |
| 595 | static |
| 596 | struct coff_ofile * |
| 597 | doit (void) |
| 598 | { |
| 599 | int i; |
| 600 | int infile = 0; |
| 601 | struct coff_ofile *head = |
| 602 | (struct coff_ofile *) xmalloc (sizeof (struct coff_ofile)); |
| 603 | ofile = head; |
| 604 | head->source_head = 0; |
| 605 | head->source_tail = 0; |
| 606 | head->nsources = 0; |
| 607 | head->symbol_list_tail = 0; |
| 608 | head->symbol_list_head = 0; |
| 609 | do_sections_p1 (head); |
| 610 | push_scope (1); |
| 611 | |
| 612 | for (i = 0; i < rawcount;) |
| 613 | { |
| 614 | struct internal_syment *sym = &rawsyms[i].u.syment; |
| 615 | switch (sym->n_sclass) |
| 616 | { |
| 617 | case C_FILE: |
| 618 | { |
| 619 | /* new source file announced */ |
| 620 | struct coff_sfile *n = |
| 621 | (struct coff_sfile *) xmalloc (sizeof (struct coff_sfile)); |
| 622 | n->section = (struct coff_isection *) xcalloc (sizeof (struct coff_isection), abfd->section_count + 1); |
| 623 | cur_sfile = n; |
| 624 | n->name = sym->_n._n_nptr[1]; |
| 625 | n->next = 0; |
| 626 | |
| 627 | if (infile) |
| 628 | { |
| 629 | pop_scope (); |
| 630 | } |
| 631 | infile = 1; |
| 632 | push_scope (1); |
| 633 | file_scope = n->scope = top_scope; |
| 634 | |
| 635 | if (head->source_tail) |
| 636 | head->source_tail->next = n; |
| 637 | else |
| 638 | head->source_head = n; |
| 639 | head->source_tail = n; |
| 640 | head->nsources++; |
| 641 | i += sym->n_numaux + 1; |
| 642 | } |
| 643 | break; |
| 644 | case C_FCN: |
| 645 | { |
| 646 | char *name = sym->_n._n_nptr[1]; |
| 647 | if (name[1] == 'b') |
| 648 | { |
| 649 | /* Function start */ |
| 650 | push_scope (0); |
| 651 | last_function_type->u.function.code = top_scope; |
| 652 | top_scope->sec = ofile->sections + sym->n_scnum; |
| 653 | top_scope->offset = sym->n_value; |
| 654 | } |
| 655 | else |
| 656 | { |
| 657 | top_scope->size = sym->n_value - top_scope->offset + 1; |
| 658 | pop_scope (); |
| 659 | |
| 660 | } |
| 661 | i += sym->n_numaux + 1; |
| 662 | } |
| 663 | break; |
| 664 | |
| 665 | case C_BLOCK: |
| 666 | { |
| 667 | char *name = sym->_n._n_nptr[1]; |
| 668 | if (name[1] == 'b') |
| 669 | { |
| 670 | /* Block start */ |
| 671 | push_scope (1); |
| 672 | top_scope->sec = ofile->sections + sym->n_scnum; |
| 673 | top_scope->offset = sym->n_value; |
| 674 | |
| 675 | } |
| 676 | else |
| 677 | { |
| 678 | top_scope->size = sym->n_value - top_scope->offset + 1; |
| 679 | pop_scope (); |
| 680 | } |
| 681 | i += sym->n_numaux + 1; |
| 682 | } |
| 683 | break; |
| 684 | case C_REGPARM: |
| 685 | case C_ARG: |
| 686 | i = do_define (i, last_function_symbol->type->u.function.parameters); |
| 687 | break; |
| 688 | case C_MOS: |
| 689 | case C_MOU: |
| 690 | case C_FIELD: |
| 691 | i = do_define (i, last_struct->u.astructdef.elements); |
| 692 | break; |
| 693 | case C_MOE: |
| 694 | i = do_define (i, last_enum->u.aenumdef.elements); |
| 695 | break; |
| 696 | case C_STRTAG: |
| 697 | case C_ENTAG: |
| 698 | case C_UNTAG: |
| 699 | /* Various definition */ |
| 700 | i = do_define (i, top_scope); |
| 701 | break; |
| 702 | case C_EXT: |
| 703 | case C_LABEL: |
| 704 | i = do_define (i, file_scope); |
| 705 | break; |
| 706 | case C_STAT: |
| 707 | case C_TPDEF: |
| 708 | case C_AUTO: |
| 709 | case C_REG: |
| 710 | i = do_define (i, top_scope); |
| 711 | break; |
| 712 | default: |
| 713 | abort (); |
| 714 | case C_EOS: |
| 715 | i += sym->n_numaux + 1; |
| 716 | break; |
| 717 | } |
| 718 | } |
| 719 | do_sections_p2 (head); |
| 720 | return head; |
| 721 | } |
| 722 | |
| 723 | struct coff_ofile * |
| 724 | coff_grok (bfd *inabfd) |
| 725 | { |
| 726 | long storage; |
| 727 | struct coff_ofile *p; |
| 728 | abfd = inabfd; |
| 729 | storage = bfd_get_symtab_upper_bound (abfd); |
| 730 | |
| 731 | if (storage < 0) |
| 732 | bfd_fatal (abfd->filename); |
| 733 | |
| 734 | syms = (asymbol **) xmalloc (storage); |
| 735 | symcount = bfd_canonicalize_symtab (abfd, syms); |
| 736 | if (symcount < 0) |
| 737 | bfd_fatal (abfd->filename); |
| 738 | rawsyms = obj_raw_syments (abfd); |
| 739 | rawcount = obj_raw_syment_count (abfd);; |
| 740 | tindex = (struct coff_symbol **) (xcalloc (sizeof (struct coff_symbol *), rawcount)); |
| 741 | |
| 742 | p = doit (); |
| 743 | return p; |
| 744 | } |