| 1 | /* Linker command language support. |
| 2 | Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GLD, the Gnu Linker. |
| 5 | |
| 6 | GLD is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 1, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GLD is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GLD; see the file COPYING. If not, write to |
| 18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | #include "bfd.h" |
| 21 | #include "sysdep.h" |
| 22 | #include "libiberty.h" |
| 23 | #include "bfdlink.h" |
| 24 | |
| 25 | #include "ld.h" |
| 26 | #include "ldmain.h" |
| 27 | #include "ldgram.h" |
| 28 | #include "ldexp.h" |
| 29 | #include "ldlang.h" |
| 30 | #include "ldemul.h" |
| 31 | #include "ldlex.h" |
| 32 | #include "ldmisc.h" |
| 33 | #include "ldctor.h" |
| 34 | #include "ldfile.h" |
| 35 | |
| 36 | /* FORWARDS */ |
| 37 | static void print_statements PARAMS ((void)); |
| 38 | static void print_statement PARAMS ((lang_statement_union_type *, |
| 39 | lang_output_section_statement_type *)); |
| 40 | static lang_statement_union_type *new_statement PARAMS ((enum statement_enum, |
| 41 | size_t, |
| 42 | lang_statement_list_type*)); |
| 43 | |
| 44 | |
| 45 | /* LOCALS */ |
| 46 | static struct obstack stat_obstack; |
| 47 | |
| 48 | #define obstack_chunk_alloc xmalloc |
| 49 | #define obstack_chunk_free free |
| 50 | static CONST char *startup_file; |
| 51 | static lang_statement_list_type input_file_chain; |
| 52 | static boolean placed_commons = false; |
| 53 | static lang_output_section_statement_type *default_common_section; |
| 54 | static boolean map_option_f; |
| 55 | static bfd_vma print_dot; |
| 56 | static lang_input_statement_type *first_file; |
| 57 | static lang_statement_list_type lang_output_section_statement; |
| 58 | static CONST char *current_target; |
| 59 | static CONST char *output_target; |
| 60 | static int longest_section_name = 8; |
| 61 | static lang_statement_list_type statement_list; |
| 62 | |
| 63 | static void print_size PARAMS ((size_t value)); |
| 64 | static void print_alignment PARAMS ((unsigned int value)); |
| 65 | static void print_fill PARAMS ((fill_type value)); |
| 66 | static void print_section PARAMS ((const char *name)); |
| 67 | static void lang_for_each_statement_worker |
| 68 | PARAMS ((void (*func) (lang_statement_union_type *), |
| 69 | lang_statement_union_type *s)); |
| 70 | static lang_input_statement_type *new_afile |
| 71 | PARAMS ((const char *name, lang_input_file_enum_type file_type, |
| 72 | const char *target, boolean add_to_list)); |
| 73 | static void print_flags PARAMS ((int *ignore_flags)); |
| 74 | static void init_os PARAMS ((lang_output_section_statement_type *s)); |
| 75 | static void wild_section PARAMS ((lang_wild_statement_type *ptr, |
| 76 | const char *section, |
| 77 | lang_input_statement_type *file, |
| 78 | lang_output_section_statement_type *output)); |
| 79 | static lang_input_statement_type *lookup_name PARAMS ((const char *name)); |
| 80 | static void load_symbols PARAMS ((lang_input_statement_type *entry, |
| 81 | lang_statement_list_type *)); |
| 82 | static void wild PARAMS ((lang_wild_statement_type *s, |
| 83 | const char *section, const char *file, |
| 84 | const char *target, |
| 85 | lang_output_section_statement_type *output)); |
| 86 | static bfd *open_output PARAMS ((const char *name)); |
| 87 | static void ldlang_open_output PARAMS ((lang_statement_union_type *statement)); |
| 88 | static void open_input_bfds |
| 89 | PARAMS ((lang_statement_union_type *statement, boolean)); |
| 90 | static void lang_reasonable_defaults PARAMS ((void)); |
| 91 | static void lang_place_undefineds PARAMS ((void)); |
| 92 | static void map_input_to_output_sections |
| 93 | PARAMS ((lang_statement_union_type *s, |
| 94 | const char *target, |
| 95 | lang_output_section_statement_type *output_section_statement)); |
| 96 | static void print_output_section_statement |
| 97 | PARAMS ((lang_output_section_statement_type *output_section_statement)); |
| 98 | static void print_assignment |
| 99 | PARAMS ((lang_assignment_statement_type *assignment, |
| 100 | lang_output_section_statement_type *output_section)); |
| 101 | static void print_input_statement PARAMS ((lang_input_statement_type *statm)); |
| 102 | static void print_input_section PARAMS ((lang_input_section_type *in)); |
| 103 | static void print_fill_statement PARAMS ((lang_fill_statement_type *fill)); |
| 104 | static void print_data_statement PARAMS ((lang_data_statement_type *data)); |
| 105 | static void print_reloc_statement PARAMS ((lang_reloc_statement_type *reloc)); |
| 106 | static void print_padding_statement PARAMS ((lang_padding_statement_type *s)); |
| 107 | static void print_wild_statement |
| 108 | PARAMS ((lang_wild_statement_type *w, |
| 109 | lang_output_section_statement_type *os)); |
| 110 | static void print_group |
| 111 | PARAMS ((lang_group_statement_type *, lang_output_section_statement_type *)); |
| 112 | static void print_statement PARAMS ((lang_statement_union_type *s, |
| 113 | lang_output_section_statement_type *os)); |
| 114 | static void print_statements PARAMS ((void)); |
| 115 | static bfd_vma insert_pad PARAMS ((lang_statement_union_type **this_ptr, |
| 116 | fill_type fill, unsigned int power, |
| 117 | asection *output_section_statement, |
| 118 | bfd_vma dot)); |
| 119 | static bfd_vma size_input_section |
| 120 | PARAMS ((lang_statement_union_type **this_ptr, |
| 121 | lang_output_section_statement_type *output_section_statement, |
| 122 | fill_type fill, bfd_vma dot, boolean relax)); |
| 123 | static void lang_finish PARAMS ((void)); |
| 124 | static void lang_check PARAMS ((void)); |
| 125 | static void lang_common PARAMS ((void)); |
| 126 | static boolean lang_one_common PARAMS ((struct bfd_link_hash_entry *, PTR)); |
| 127 | static void lang_place_orphans PARAMS ((void)); |
| 128 | static int topower PARAMS ((int)); |
| 129 | static void reset_memory_regions PARAMS ((void)); |
| 130 | |
| 131 | /* EXPORTS */ |
| 132 | lang_output_section_statement_type *abs_output_section; |
| 133 | lang_statement_list_type *stat_ptr = &statement_list; |
| 134 | lang_statement_list_type file_chain = { 0 }; |
| 135 | static const char *entry_symbol = 0; |
| 136 | boolean lang_has_input_file = false; |
| 137 | boolean had_output_filename = false; |
| 138 | boolean lang_float_flag = false; |
| 139 | boolean delete_output_file_on_failure = false; |
| 140 | |
| 141 | etree_type *base; /* Relocation base - or null */ |
| 142 | |
| 143 | |
| 144 | #if defined(__STDC__) || defined(ALMOST_STDC) |
| 145 | #define cat(a,b) a##b |
| 146 | #else |
| 147 | #define cat(a,b) a/**/b |
| 148 | #endif |
| 149 | |
| 150 | #define new_stat(x,y) (cat(x,_type)*) new_statement(cat(x,_enum), sizeof(cat(x,_type)),y) |
| 151 | |
| 152 | #define outside_section_address(q) ( (q)->output_offset + (q)->output_section->vma) |
| 153 | |
| 154 | #define outside_symbol_address(q) ((q)->value + outside_section_address(q->section)) |
| 155 | |
| 156 | PTR |
| 157 | stat_alloc (size) |
| 158 | size_t size; |
| 159 | { |
| 160 | return obstack_alloc (&stat_obstack, size); |
| 161 | } |
| 162 | |
| 163 | static void |
| 164 | print_size (value) |
| 165 | size_t value; |
| 166 | { |
| 167 | fprintf (config.map_file, "%5x", (unsigned) value); |
| 168 | } |
| 169 | |
| 170 | static void |
| 171 | print_alignment (value) |
| 172 | unsigned int value; |
| 173 | { |
| 174 | fprintf (config.map_file, "2**%1u", value); |
| 175 | } |
| 176 | |
| 177 | static void |
| 178 | print_fill (value) |
| 179 | fill_type value; |
| 180 | { |
| 181 | fprintf (config.map_file, "%04x", (unsigned) value); |
| 182 | } |
| 183 | |
| 184 | static void |
| 185 | print_section (name) |
| 186 | CONST char *name; |
| 187 | { |
| 188 | fprintf (config.map_file, "%*s", -longest_section_name, name); |
| 189 | } |
| 190 | |
| 191 | /*---------------------------------------------------------------------- |
| 192 | lang_for_each_statement walks the parse tree and calls the provided |
| 193 | function for each node |
| 194 | */ |
| 195 | |
| 196 | static void |
| 197 | lang_for_each_statement_worker (func, s) |
| 198 | void (*func) PARAMS ((lang_statement_union_type *)); |
| 199 | lang_statement_union_type *s; |
| 200 | { |
| 201 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
| 202 | { |
| 203 | func (s); |
| 204 | |
| 205 | switch (s->header.type) |
| 206 | { |
| 207 | case lang_constructors_statement_enum: |
| 208 | lang_for_each_statement_worker (func, constructor_list.head); |
| 209 | break; |
| 210 | case lang_output_section_statement_enum: |
| 211 | lang_for_each_statement_worker |
| 212 | (func, |
| 213 | s->output_section_statement.children.head); |
| 214 | break; |
| 215 | case lang_wild_statement_enum: |
| 216 | lang_for_each_statement_worker |
| 217 | (func, |
| 218 | s->wild_statement.children.head); |
| 219 | break; |
| 220 | case lang_group_statement_enum: |
| 221 | lang_for_each_statement_worker (func, |
| 222 | s->group_statement.children.head); |
| 223 | break; |
| 224 | case lang_data_statement_enum: |
| 225 | case lang_reloc_statement_enum: |
| 226 | case lang_object_symbols_statement_enum: |
| 227 | case lang_output_statement_enum: |
| 228 | case lang_target_statement_enum: |
| 229 | case lang_input_section_enum: |
| 230 | case lang_input_statement_enum: |
| 231 | case lang_assignment_statement_enum: |
| 232 | case lang_padding_statement_enum: |
| 233 | case lang_address_statement_enum: |
| 234 | break; |
| 235 | default: |
| 236 | FAIL (); |
| 237 | break; |
| 238 | } |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | void |
| 243 | lang_for_each_statement (func) |
| 244 | void (*func) PARAMS ((lang_statement_union_type *)); |
| 245 | { |
| 246 | lang_for_each_statement_worker (func, |
| 247 | statement_list.head); |
| 248 | } |
| 249 | |
| 250 | /*----------------------------------------------------------------------*/ |
| 251 | void |
| 252 | lang_list_init (list) |
| 253 | lang_statement_list_type *list; |
| 254 | { |
| 255 | list->head = (lang_statement_union_type *) NULL; |
| 256 | list->tail = &list->head; |
| 257 | } |
| 258 | |
| 259 | /*---------------------------------------------------------------------- |
| 260 | |
| 261 | build a new statement node for the parse tree |
| 262 | |
| 263 | */ |
| 264 | |
| 265 | static |
| 266 | lang_statement_union_type * |
| 267 | new_statement (type, size, list) |
| 268 | enum statement_enum type; |
| 269 | size_t size; |
| 270 | lang_statement_list_type * list; |
| 271 | { |
| 272 | lang_statement_union_type *new = (lang_statement_union_type *) |
| 273 | stat_alloc (size); |
| 274 | |
| 275 | new->header.type = type; |
| 276 | new->header.next = (lang_statement_union_type *) NULL; |
| 277 | lang_statement_append (list, new, &new->header.next); |
| 278 | return new; |
| 279 | } |
| 280 | |
| 281 | /* |
| 282 | Build a new input file node for the language. There are several ways |
| 283 | in which we treat an input file, eg, we only look at symbols, or |
| 284 | prefix it with a -l etc. |
| 285 | |
| 286 | We can be supplied with requests for input files more than once; |
| 287 | they may, for example be split over serveral lines like foo.o(.text) |
| 288 | foo.o(.data) etc, so when asked for a file we check that we havn't |
| 289 | got it already so we don't duplicate the bfd. |
| 290 | |
| 291 | */ |
| 292 | static lang_input_statement_type * |
| 293 | new_afile (name, file_type, target, add_to_list) |
| 294 | CONST char *name; |
| 295 | lang_input_file_enum_type file_type; |
| 296 | CONST char *target; |
| 297 | boolean add_to_list; |
| 298 | { |
| 299 | lang_input_statement_type *p; |
| 300 | |
| 301 | if (add_to_list) |
| 302 | p = new_stat (lang_input_statement, stat_ptr); |
| 303 | else |
| 304 | { |
| 305 | p = ((lang_input_statement_type *) |
| 306 | stat_alloc (sizeof (lang_input_statement_type))); |
| 307 | p->header.next = NULL; |
| 308 | } |
| 309 | |
| 310 | lang_has_input_file = true; |
| 311 | p->target = target; |
| 312 | p->complained = false; |
| 313 | switch (file_type) |
| 314 | { |
| 315 | case lang_input_file_is_symbols_only_enum: |
| 316 | p->filename = name; |
| 317 | p->is_archive = false; |
| 318 | p->real = true; |
| 319 | p->local_sym_name = name; |
| 320 | p->just_syms_flag = true; |
| 321 | p->search_dirs_flag = false; |
| 322 | break; |
| 323 | case lang_input_file_is_fake_enum: |
| 324 | p->filename = name; |
| 325 | p->is_archive = false; |
| 326 | p->real = false; |
| 327 | p->local_sym_name = name; |
| 328 | p->just_syms_flag = false; |
| 329 | p->search_dirs_flag = false; |
| 330 | break; |
| 331 | case lang_input_file_is_l_enum: |
| 332 | p->is_archive = true; |
| 333 | p->filename = name; |
| 334 | p->real = true; |
| 335 | p->local_sym_name = concat ("-l", name, (const char *) NULL); |
| 336 | p->just_syms_flag = false; |
| 337 | p->search_dirs_flag = true; |
| 338 | break; |
| 339 | case lang_input_file_is_marker_enum: |
| 340 | p->filename = name; |
| 341 | p->is_archive = false; |
| 342 | p->real = false; |
| 343 | p->local_sym_name = name; |
| 344 | p->just_syms_flag = false; |
| 345 | p->search_dirs_flag = true; |
| 346 | break; |
| 347 | case lang_input_file_is_search_file_enum: |
| 348 | p->filename = name; |
| 349 | p->is_archive = false; |
| 350 | p->real = true; |
| 351 | p->local_sym_name = name; |
| 352 | p->just_syms_flag = false; |
| 353 | p->search_dirs_flag = true; |
| 354 | break; |
| 355 | case lang_input_file_is_file_enum: |
| 356 | p->filename = name; |
| 357 | p->is_archive = false; |
| 358 | p->real = true; |
| 359 | p->local_sym_name = name; |
| 360 | p->just_syms_flag = false; |
| 361 | p->search_dirs_flag = false; |
| 362 | break; |
| 363 | default: |
| 364 | FAIL (); |
| 365 | } |
| 366 | p->the_bfd = (bfd *) NULL; |
| 367 | p->asymbols = (asymbol **) NULL; |
| 368 | p->next_real_file = (lang_statement_union_type *) NULL; |
| 369 | p->next = (lang_statement_union_type *) NULL; |
| 370 | p->symbol_count = 0; |
| 371 | p->common_output_section = (asection *) NULL; |
| 372 | p->loaded = false; |
| 373 | lang_statement_append (&input_file_chain, |
| 374 | (lang_statement_union_type *) p, |
| 375 | &p->next_real_file); |
| 376 | return p; |
| 377 | } |
| 378 | |
| 379 | lang_input_statement_type * |
| 380 | lang_add_input_file (name, file_type, target) |
| 381 | CONST char *name; |
| 382 | lang_input_file_enum_type file_type; |
| 383 | CONST char *target; |
| 384 | { |
| 385 | lang_has_input_file = true; |
| 386 | return new_afile (name, file_type, target, true); |
| 387 | } |
| 388 | |
| 389 | /* Build enough state so that the parser can build its tree */ |
| 390 | void |
| 391 | lang_init () |
| 392 | { |
| 393 | obstack_begin (&stat_obstack, 1000); |
| 394 | |
| 395 | stat_ptr = &statement_list; |
| 396 | |
| 397 | lang_list_init (stat_ptr); |
| 398 | |
| 399 | lang_list_init (&input_file_chain); |
| 400 | lang_list_init (&lang_output_section_statement); |
| 401 | lang_list_init (&file_chain); |
| 402 | first_file = lang_add_input_file ((char *) NULL, |
| 403 | lang_input_file_is_marker_enum, |
| 404 | (char *) NULL); |
| 405 | abs_output_section = lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME); |
| 406 | |
| 407 | abs_output_section->bfd_section = bfd_abs_section_ptr; |
| 408 | |
| 409 | } |
| 410 | |
| 411 | /*---------------------------------------------------------------------- |
| 412 | A region is an area of memory declared with the |
| 413 | MEMORY { name:org=exp, len=exp ... } |
| 414 | syntax. |
| 415 | |
| 416 | We maintain a list of all the regions here |
| 417 | |
| 418 | If no regions are specified in the script, then the default is used |
| 419 | which is created when looked up to be the entire data space |
| 420 | */ |
| 421 | |
| 422 | static lang_memory_region_type *lang_memory_region_list; |
| 423 | static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list; |
| 424 | |
| 425 | lang_memory_region_type * |
| 426 | lang_memory_region_lookup (name) |
| 427 | CONST char *CONST name; |
| 428 | { |
| 429 | |
| 430 | lang_memory_region_type *p = lang_memory_region_list; |
| 431 | |
| 432 | for (p = lang_memory_region_list; |
| 433 | p != (lang_memory_region_type *) NULL; |
| 434 | p = p->next) |
| 435 | { |
| 436 | if (strcmp (p->name, name) == 0) |
| 437 | { |
| 438 | return p; |
| 439 | } |
| 440 | } |
| 441 | if (strcmp (name, "*default*") == 0) |
| 442 | { |
| 443 | /* This is the default region, dig out first one on the list */ |
| 444 | if (lang_memory_region_list != (lang_memory_region_type *) NULL) |
| 445 | { |
| 446 | return lang_memory_region_list; |
| 447 | } |
| 448 | } |
| 449 | { |
| 450 | lang_memory_region_type *new = |
| 451 | (lang_memory_region_type *) stat_alloc ((bfd_size_type) (sizeof (lang_memory_region_type))); |
| 452 | |
| 453 | new->name = buystring (name); |
| 454 | new->next = (lang_memory_region_type *) NULL; |
| 455 | |
| 456 | *lang_memory_region_list_tail = new; |
| 457 | lang_memory_region_list_tail = &new->next; |
| 458 | new->origin = 0; |
| 459 | new->length = ~(bfd_size_type)0; |
| 460 | new->current = 0; |
| 461 | new->had_full_message = false; |
| 462 | |
| 463 | return new; |
| 464 | } |
| 465 | } |
| 466 | |
| 467 | |
| 468 | lang_output_section_statement_type * |
| 469 | lang_output_section_find (name) |
| 470 | CONST char *CONST name; |
| 471 | { |
| 472 | lang_statement_union_type *u; |
| 473 | lang_output_section_statement_type *lookup; |
| 474 | |
| 475 | for (u = lang_output_section_statement.head; |
| 476 | u != (lang_statement_union_type *) NULL; |
| 477 | u = lookup->next) |
| 478 | { |
| 479 | lookup = &u->output_section_statement; |
| 480 | if (strcmp (name, lookup->name) == 0) |
| 481 | { |
| 482 | return lookup; |
| 483 | } |
| 484 | } |
| 485 | return (lang_output_section_statement_type *) NULL; |
| 486 | } |
| 487 | |
| 488 | lang_output_section_statement_type * |
| 489 | lang_output_section_statement_lookup (name) |
| 490 | CONST char *CONST name; |
| 491 | { |
| 492 | lang_output_section_statement_type *lookup; |
| 493 | |
| 494 | lookup = lang_output_section_find (name); |
| 495 | if (lookup == (lang_output_section_statement_type *) NULL) |
| 496 | { |
| 497 | |
| 498 | lookup = (lang_output_section_statement_type *) |
| 499 | new_stat (lang_output_section_statement, stat_ptr); |
| 500 | lookup->region = (lang_memory_region_type *) NULL; |
| 501 | lookup->fill = 0; |
| 502 | lookup->block_value = 1; |
| 503 | lookup->name = name; |
| 504 | |
| 505 | lookup->next = (lang_statement_union_type *) NULL; |
| 506 | lookup->bfd_section = (asection *) NULL; |
| 507 | lookup->processed = false; |
| 508 | lookup->loadable = 1; |
| 509 | lookup->addr_tree = (etree_type *) NULL; |
| 510 | lang_list_init (&lookup->children); |
| 511 | |
| 512 | lookup->memspec = (CONST char *) NULL; |
| 513 | lookup->flags = 0; |
| 514 | lookup->subsection_alignment = -1; |
| 515 | lookup->section_alignment = -1; |
| 516 | lookup->load_base = (union etree_union *) NULL; |
| 517 | |
| 518 | lang_statement_append (&lang_output_section_statement, |
| 519 | (lang_statement_union_type *) lookup, |
| 520 | &lookup->next); |
| 521 | } |
| 522 | return lookup; |
| 523 | } |
| 524 | |
| 525 | /*ARGSUSED*/ |
| 526 | static void |
| 527 | print_flags (ignore_flags) |
| 528 | int *ignore_flags; |
| 529 | { |
| 530 | fprintf (config.map_file, "("); |
| 531 | #if 0 |
| 532 | if (flags->flag_read) |
| 533 | fprintf (outfile, "R"); |
| 534 | if (flags->flag_write) |
| 535 | fprintf (outfile, "W"); |
| 536 | if (flags->flag_executable) |
| 537 | fprintf (outfile, "X"); |
| 538 | if (flags->flag_loadable) |
| 539 | fprintf (outfile, "L"); |
| 540 | #endif |
| 541 | fprintf (config.map_file, ")"); |
| 542 | } |
| 543 | |
| 544 | void |
| 545 | lang_map () |
| 546 | { |
| 547 | lang_memory_region_type *m; |
| 548 | |
| 549 | fprintf (config.map_file, "**MEMORY CONFIGURATION**\n\n"); |
| 550 | #ifdef HOST_64_BIT |
| 551 | fprintf (config.map_file, "name\t\torigin\t\tlength\t\tattributes\n"); |
| 552 | #else |
| 553 | fprintf (config.map_file, |
| 554 | "name\t\torigin length r_size c_size is attributes\n"); |
| 555 | |
| 556 | #endif |
| 557 | for (m = lang_memory_region_list; |
| 558 | m != (lang_memory_region_type *) NULL; |
| 559 | m = m->next) |
| 560 | { |
| 561 | fprintf (config.map_file, "%-16s", m->name); |
| 562 | print_address (m->origin); |
| 563 | print_space (); |
| 564 | print_address ((bfd_vma)m->length); |
| 565 | print_space (); |
| 566 | print_address ((bfd_vma)m->old_length); |
| 567 | print_space(); |
| 568 | print_address (m->current - m->origin); |
| 569 | print_space(); |
| 570 | if (m->old_length) |
| 571 | fprintf (config.map_file, " %2d%% ", |
| 572 | (int) ((m->current - m->origin) * 100 / m->old_length)); |
| 573 | print_flags (&m->flags); |
| 574 | fprintf (config.map_file, "\n"); |
| 575 | } |
| 576 | fprintf (config.map_file, "\n\n**LINK EDITOR MEMORY MAP**\n\n"); |
| 577 | fprintf (config.map_file, "output input virtual\n"); |
| 578 | fprintf (config.map_file, "section section address tsize\n\n"); |
| 579 | |
| 580 | print_statements (); |
| 581 | |
| 582 | } |
| 583 | |
| 584 | /* |
| 585 | * |
| 586 | */ |
| 587 | static void |
| 588 | init_os (s) |
| 589 | lang_output_section_statement_type * s; |
| 590 | { |
| 591 | /* asection *section = bfd_get_section_by_name(output_bfd, s->name);*/ |
| 592 | section_userdata_type *new = |
| 593 | (section_userdata_type *) |
| 594 | stat_alloc ((bfd_size_type) (sizeof (section_userdata_type))); |
| 595 | |
| 596 | s->bfd_section = bfd_get_section_by_name (output_bfd, s->name); |
| 597 | if (s->bfd_section == (asection *) NULL) |
| 598 | s->bfd_section = bfd_make_section (output_bfd, s->name); |
| 599 | if (s->bfd_section == (asection *) NULL) |
| 600 | { |
| 601 | einfo ("%P%F: output format %s cannot represent section called %s\n", |
| 602 | output_bfd->xvec->name, s->name); |
| 603 | } |
| 604 | s->bfd_section->output_section = s->bfd_section; |
| 605 | /* s->bfd_section->flags = s->flags;*/ |
| 606 | |
| 607 | /* We initialize an output sections output offset to minus its own */ |
| 608 | /* vma to allow us to output a section through itself */ |
| 609 | s->bfd_section->output_offset = 0; |
| 610 | get_userdata (s->bfd_section) = (PTR) new; |
| 611 | |
| 612 | } |
| 613 | |
| 614 | /*********************************************************************** |
| 615 | The wild routines. |
| 616 | |
| 617 | These expand statements like *(.text) and foo.o to a list of |
| 618 | explicit actions, like foo.o(.text), bar.o(.text) and |
| 619 | foo.o(.text,.data) . |
| 620 | |
| 621 | The toplevel routine, wild, takes a statement, section, file and |
| 622 | target. If either the section or file is null it is taken to be the |
| 623 | wildcard. Seperate lang_input_section statements are created for |
| 624 | each part of the expanstion, and placed after the statement provided. |
| 625 | |
| 626 | */ |
| 627 | |
| 628 | void |
| 629 | wild_doit (ptr, section, output, file) |
| 630 | lang_statement_list_type * ptr; |
| 631 | asection * section; |
| 632 | lang_output_section_statement_type * output; |
| 633 | lang_input_statement_type * file; |
| 634 | { |
| 635 | if (output->bfd_section == (asection *) NULL) |
| 636 | init_os (output); |
| 637 | |
| 638 | if (section != (asection *) NULL |
| 639 | && section->output_section == (asection *) NULL) |
| 640 | { |
| 641 | /* Add a section reference to the list */ |
| 642 | lang_input_section_type *new = new_stat (lang_input_section, ptr); |
| 643 | |
| 644 | new->section = section; |
| 645 | new->ifile = file; |
| 646 | section->output_section = output->bfd_section; |
| 647 | |
| 648 | /* We don't copy the SEC_NEVER_LOAD flag from an input section to |
| 649 | an output section, because we want to be able to include a |
| 650 | SEC_NEVER_LOAD section in the middle of an otherwise loaded |
| 651 | section (I don't know why we want to do this, but we do). |
| 652 | build_link_order in ldwrite.c handles this case by turning the |
| 653 | embedded SEC_NEVER_LOAD section into a fill. */ |
| 654 | section->output_section->flags |= |
| 655 | section->flags & (flagword) (~ SEC_NEVER_LOAD); |
| 656 | |
| 657 | if (!output->loadable) |
| 658 | { |
| 659 | /* Turn off load flag */ |
| 660 | output->bfd_section->flags &= ~SEC_LOAD; |
| 661 | output->bfd_section->flags |= SEC_NEVER_LOAD; |
| 662 | } |
| 663 | if (section->alignment_power > output->bfd_section->alignment_power) |
| 664 | { |
| 665 | output->bfd_section->alignment_power = section->alignment_power; |
| 666 | } |
| 667 | /* If supplied an aligmnet, then force it */ |
| 668 | if (output->section_alignment != -1) |
| 669 | { |
| 670 | output->bfd_section->alignment_power = output->section_alignment; |
| 671 | } |
| 672 | } |
| 673 | } |
| 674 | |
| 675 | static void |
| 676 | wild_section (ptr, section, file, output) |
| 677 | lang_wild_statement_type *ptr; |
| 678 | const char *section; |
| 679 | lang_input_statement_type *file; |
| 680 | lang_output_section_statement_type *output; |
| 681 | { |
| 682 | if (file->just_syms_flag == false) |
| 683 | { |
| 684 | register asection *s; |
| 685 | |
| 686 | for (s = file->the_bfd->sections; s != NULL; s = s->next) |
| 687 | { |
| 688 | /* Attach all sections named SECTION. If SECTION is NULL, |
| 689 | then attach all sections. |
| 690 | |
| 691 | Previously, if SECTION was NULL, this code did not call |
| 692 | wild_doit if the SEC_IS_COMMON flag was set for the |
| 693 | section. I did not understand that, and I took it out. |
| 694 | --ian@cygnus.com. */ |
| 695 | |
| 696 | if (section == NULL |
| 697 | || strcmp (bfd_get_section_name (file->the_bfd, s), |
| 698 | section) == 0) |
| 699 | wild_doit (&ptr->children, s, output, file); |
| 700 | } |
| 701 | } |
| 702 | } |
| 703 | |
| 704 | /* passed a file name (which must have been seen already and added to |
| 705 | the statement tree. We will see if it has been opened already and |
| 706 | had its symbols read. If not then we'll read it. |
| 707 | |
| 708 | Archives are pecuilar here. We may open them once, but if they do |
| 709 | not define anything we need at the time, they won't have all their |
| 710 | symbols read. If we need them later, we'll have to redo it. */ |
| 711 | static lang_input_statement_type * |
| 712 | lookup_name (name) |
| 713 | CONST char *name; |
| 714 | { |
| 715 | lang_input_statement_type *search; |
| 716 | |
| 717 | for (search = (lang_input_statement_type *) input_file_chain.head; |
| 718 | search != (lang_input_statement_type *) NULL; |
| 719 | search = (lang_input_statement_type *) search->next_real_file) |
| 720 | { |
| 721 | if (search->filename == (char *) NULL && name == (char *) NULL) |
| 722 | return search; |
| 723 | if (search->filename != (char *) NULL |
| 724 | && name != (char *) NULL |
| 725 | && strcmp (search->filename, name) == 0) |
| 726 | break; |
| 727 | } |
| 728 | |
| 729 | if (search == (lang_input_statement_type *) NULL) |
| 730 | search = new_afile (name, lang_input_file_is_file_enum, default_target, |
| 731 | false); |
| 732 | |
| 733 | /* If we have already added this file, or this file is not real |
| 734 | (FIXME: can that ever actually happen?) or the name is NULL |
| 735 | (FIXME: can that ever actually happen?) don't add this file. */ |
| 736 | if (search->loaded |
| 737 | || ! search->real |
| 738 | || search->filename == (const char *) NULL) |
| 739 | return search; |
| 740 | |
| 741 | load_symbols (search, (lang_statement_list_type *) NULL); |
| 742 | |
| 743 | return search; |
| 744 | } |
| 745 | |
| 746 | /* Get the symbols for an input file. */ |
| 747 | |
| 748 | static void |
| 749 | load_symbols (entry, place) |
| 750 | lang_input_statement_type *entry; |
| 751 | lang_statement_list_type *place; |
| 752 | { |
| 753 | char **matching; |
| 754 | |
| 755 | if (entry->loaded) |
| 756 | return; |
| 757 | |
| 758 | ldfile_open_file (entry); |
| 759 | |
| 760 | if (! bfd_check_format (entry->the_bfd, bfd_archive) |
| 761 | && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching)) |
| 762 | { |
| 763 | bfd_error_type err; |
| 764 | lang_statement_list_type *hold; |
| 765 | |
| 766 | err = bfd_get_error (); |
| 767 | if (err == bfd_error_file_ambiguously_recognized) |
| 768 | { |
| 769 | char **p; |
| 770 | |
| 771 | einfo ("%B: file not recognized: %E\n", entry->the_bfd); |
| 772 | einfo ("%B: matching formats:", entry->the_bfd); |
| 773 | for (p = matching; *p != NULL; p++) |
| 774 | einfo (" %s", *p); |
| 775 | einfo ("%F\n"); |
| 776 | } |
| 777 | else if (err != bfd_error_file_not_recognized |
| 778 | || place == NULL) |
| 779 | einfo ("%F%B: file not recognized: %E\n", entry->the_bfd); |
| 780 | |
| 781 | /* Try to interpret the file as a linker script. */ |
| 782 | |
| 783 | bfd_close (entry->the_bfd); |
| 784 | entry->the_bfd = NULL; |
| 785 | |
| 786 | ldfile_open_command_file (entry->filename); |
| 787 | |
| 788 | hold = stat_ptr; |
| 789 | stat_ptr = place; |
| 790 | |
| 791 | ldfile_assumed_script = true; |
| 792 | parser_input = input_script; |
| 793 | yyparse (); |
| 794 | ldfile_assumed_script = false; |
| 795 | |
| 796 | stat_ptr = hold; |
| 797 | |
| 798 | return; |
| 799 | } |
| 800 | |
| 801 | /* We don't call ldlang_add_file for an archive. Instead, the |
| 802 | add_symbols entry point will call ldlang_add_file, via the |
| 803 | add_archive_element callback, for each element of the archive |
| 804 | which is used. */ |
| 805 | if (bfd_get_format (entry->the_bfd) == bfd_object) |
| 806 | { |
| 807 | ldlang_add_file (entry); |
| 808 | if (trace_files || trace_file_tries) |
| 809 | info_msg ("%I\n", entry); |
| 810 | } |
| 811 | |
| 812 | if (! bfd_link_add_symbols (entry->the_bfd, &link_info)) |
| 813 | einfo ("%F%B: could not read symbols: %E\n", entry->the_bfd); |
| 814 | |
| 815 | entry->loaded = true; |
| 816 | } |
| 817 | |
| 818 | static void |
| 819 | wild (s, section, file, target, output) |
| 820 | lang_wild_statement_type * s; |
| 821 | CONST char *section; |
| 822 | CONST char *file; |
| 823 | CONST char *target; |
| 824 | lang_output_section_statement_type * output; |
| 825 | { |
| 826 | lang_input_statement_type *f; |
| 827 | |
| 828 | if (file == (char *) NULL) |
| 829 | { |
| 830 | /* Perform the iteration over all files in the list */ |
| 831 | for (f = (lang_input_statement_type *) file_chain.head; |
| 832 | f != (lang_input_statement_type *) NULL; |
| 833 | f = (lang_input_statement_type *) f->next) |
| 834 | { |
| 835 | wild_section (s, section, f, output); |
| 836 | } |
| 837 | } |
| 838 | else |
| 839 | { |
| 840 | /* Perform the iteration over a single file */ |
| 841 | wild_section (s, section, lookup_name (file), output); |
| 842 | } |
| 843 | if (section != (char *) NULL |
| 844 | && strcmp (section, "COMMON") == 0 |
| 845 | && default_common_section == (lang_output_section_statement_type *) NULL) |
| 846 | { |
| 847 | /* Remember the section that common is going to incase we later |
| 848 | get something which doesn't know where to put it */ |
| 849 | default_common_section = output; |
| 850 | } |
| 851 | } |
| 852 | |
| 853 | /* |
| 854 | read in all the files |
| 855 | */ |
| 856 | |
| 857 | static bfd * |
| 858 | open_output (name) |
| 859 | CONST char *name; |
| 860 | { |
| 861 | bfd *output; |
| 862 | |
| 863 | if (output_target == (char *) NULL) |
| 864 | { |
| 865 | if (current_target != (char *) NULL) |
| 866 | output_target = current_target; |
| 867 | else |
| 868 | output_target = default_target; |
| 869 | } |
| 870 | output = bfd_openw (name, output_target); |
| 871 | |
| 872 | if (output == (bfd *) NULL) |
| 873 | { |
| 874 | if (bfd_get_error () == bfd_error_invalid_target) |
| 875 | { |
| 876 | einfo ("%P%F: target %s not found\n", output_target); |
| 877 | } |
| 878 | einfo ("%P%F: cannot open output file %s: %E\n", name); |
| 879 | } |
| 880 | |
| 881 | delete_output_file_on_failure = 1; |
| 882 | |
| 883 | /* output->flags |= D_PAGED;*/ |
| 884 | |
| 885 | if (! bfd_set_format (output, bfd_object)) |
| 886 | einfo ("%P%F:%s: can not make object file: %E\n", name); |
| 887 | if (! bfd_set_arch_mach (output, |
| 888 | ldfile_output_architecture, |
| 889 | ldfile_output_machine)) |
| 890 | einfo ("%P%F:%s: can not set architecture: %E\n", name); |
| 891 | |
| 892 | link_info.hash = bfd_link_hash_table_create (output); |
| 893 | if (link_info.hash == (struct bfd_link_hash_table *) NULL) |
| 894 | einfo ("%P%F: can not create link hash table: %E\n"); |
| 895 | |
| 896 | bfd_set_gp_size (output, g_switch_value); |
| 897 | return output; |
| 898 | } |
| 899 | |
| 900 | |
| 901 | |
| 902 | |
| 903 | static void |
| 904 | ldlang_open_output (statement) |
| 905 | lang_statement_union_type * statement; |
| 906 | { |
| 907 | switch (statement->header.type) |
| 908 | { |
| 909 | case lang_output_statement_enum: |
| 910 | ASSERT (output_bfd == (bfd *) NULL); |
| 911 | output_bfd = open_output (statement->output_statement.name); |
| 912 | ldemul_set_output_arch (); |
| 913 | if (config.magic_demand_paged && !link_info.relocateable) |
| 914 | output_bfd->flags |= D_PAGED; |
| 915 | else |
| 916 | output_bfd->flags &= ~D_PAGED; |
| 917 | if (config.text_read_only) |
| 918 | output_bfd->flags |= WP_TEXT; |
| 919 | else |
| 920 | output_bfd->flags &= ~WP_TEXT; |
| 921 | if (config.traditional_format) |
| 922 | output_bfd->flags |= BFD_TRADITIONAL_FORMAT; |
| 923 | else |
| 924 | output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT; |
| 925 | break; |
| 926 | |
| 927 | case lang_target_statement_enum: |
| 928 | current_target = statement->target_statement.target; |
| 929 | break; |
| 930 | default: |
| 931 | break; |
| 932 | } |
| 933 | } |
| 934 | |
| 935 | /* Open all the input files. */ |
| 936 | |
| 937 | static void |
| 938 | open_input_bfds (s, force) |
| 939 | lang_statement_union_type *s; |
| 940 | boolean force; |
| 941 | { |
| 942 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
| 943 | { |
| 944 | switch (s->header.type) |
| 945 | { |
| 946 | case lang_constructors_statement_enum: |
| 947 | open_input_bfds (constructor_list.head, force); |
| 948 | break; |
| 949 | case lang_output_section_statement_enum: |
| 950 | open_input_bfds (s->output_section_statement.children.head, force); |
| 951 | break; |
| 952 | case lang_wild_statement_enum: |
| 953 | /* Maybe we should load the file's symbols */ |
| 954 | if (s->wild_statement.filename) |
| 955 | (void) lookup_name (s->wild_statement.filename); |
| 956 | open_input_bfds (s->wild_statement.children.head, force); |
| 957 | break; |
| 958 | case lang_group_statement_enum: |
| 959 | { |
| 960 | struct bfd_link_hash_entry *undefs; |
| 961 | |
| 962 | /* We must continually search the entries in the group |
| 963 | until no new symbols are added to the list of undefined |
| 964 | symbols. */ |
| 965 | |
| 966 | do |
| 967 | { |
| 968 | undefs = link_info.hash->undefs_tail; |
| 969 | open_input_bfds (s->group_statement.children.head, true); |
| 970 | } |
| 971 | while (undefs != link_info.hash->undefs_tail); |
| 972 | } |
| 973 | break; |
| 974 | case lang_target_statement_enum: |
| 975 | current_target = s->target_statement.target; |
| 976 | break; |
| 977 | case lang_input_statement_enum: |
| 978 | if (s->input_statement.real == true) |
| 979 | { |
| 980 | lang_statement_list_type add; |
| 981 | |
| 982 | s->input_statement.target = current_target; |
| 983 | |
| 984 | /* If we are being called from within a group, and this |
| 985 | is an archive which has already been searched, then |
| 986 | force it to be researched. */ |
| 987 | if (force |
| 988 | && s->input_statement.loaded |
| 989 | && bfd_check_format (s->input_statement.the_bfd, |
| 990 | bfd_archive)) |
| 991 | s->input_statement.loaded = false; |
| 992 | |
| 993 | lang_list_init (&add); |
| 994 | |
| 995 | load_symbols (&s->input_statement, &add); |
| 996 | |
| 997 | if (add.head != NULL) |
| 998 | { |
| 999 | *add.tail = s->next; |
| 1000 | s->next = add.head; |
| 1001 | } |
| 1002 | } |
| 1003 | break; |
| 1004 | default: |
| 1005 | break; |
| 1006 | } |
| 1007 | } |
| 1008 | } |
| 1009 | |
| 1010 | /* If there are [COMMONS] statements, put a wild one into the bss section */ |
| 1011 | |
| 1012 | static void |
| 1013 | lang_reasonable_defaults () |
| 1014 | { |
| 1015 | #if 0 |
| 1016 | lang_output_section_statement_lookup (".text"); |
| 1017 | lang_output_section_statement_lookup (".data"); |
| 1018 | |
| 1019 | default_common_section = |
| 1020 | lang_output_section_statement_lookup (".bss"); |
| 1021 | |
| 1022 | |
| 1023 | if (placed_commons == false) |
| 1024 | { |
| 1025 | lang_wild_statement_type *new = |
| 1026 | new_stat (lang_wild_statement, |
| 1027 | &default_common_section->children); |
| 1028 | |
| 1029 | new->section_name = "COMMON"; |
| 1030 | new->filename = (char *) NULL; |
| 1031 | lang_list_init (&new->children); |
| 1032 | } |
| 1033 | #endif |
| 1034 | |
| 1035 | } |
| 1036 | |
| 1037 | /* |
| 1038 | Add the supplied name to the symbol table as an undefined reference. |
| 1039 | Remove items from the chain as we open input bfds |
| 1040 | */ |
| 1041 | typedef struct ldlang_undef_chain_list |
| 1042 | { |
| 1043 | struct ldlang_undef_chain_list *next; |
| 1044 | char *name; |
| 1045 | } ldlang_undef_chain_list_type; |
| 1046 | |
| 1047 | static ldlang_undef_chain_list_type *ldlang_undef_chain_list_head; |
| 1048 | |
| 1049 | void |
| 1050 | ldlang_add_undef (name) |
| 1051 | CONST char *CONST name; |
| 1052 | { |
| 1053 | ldlang_undef_chain_list_type *new = |
| 1054 | (ldlang_undef_chain_list_type |
| 1055 | *) stat_alloc ((bfd_size_type) (sizeof (ldlang_undef_chain_list_type))); |
| 1056 | |
| 1057 | new->next = ldlang_undef_chain_list_head; |
| 1058 | ldlang_undef_chain_list_head = new; |
| 1059 | |
| 1060 | new->name = buystring (name); |
| 1061 | } |
| 1062 | |
| 1063 | /* Run through the list of undefineds created above and place them |
| 1064 | into the linker hash table as undefined symbols belonging to the |
| 1065 | script file. |
| 1066 | */ |
| 1067 | static void |
| 1068 | lang_place_undefineds () |
| 1069 | { |
| 1070 | ldlang_undef_chain_list_type *ptr; |
| 1071 | |
| 1072 | for (ptr = ldlang_undef_chain_list_head; |
| 1073 | ptr != (ldlang_undef_chain_list_type *) NULL; |
| 1074 | ptr = ptr->next) |
| 1075 | { |
| 1076 | struct bfd_link_hash_entry *h; |
| 1077 | |
| 1078 | h = bfd_link_hash_lookup (link_info.hash, ptr->name, true, false, true); |
| 1079 | if (h == (struct bfd_link_hash_entry *) NULL) |
| 1080 | einfo ("%P%F: bfd_link_hash_lookup failed: %E"); |
| 1081 | if (h->type == bfd_link_hash_new) |
| 1082 | { |
| 1083 | h->type = bfd_link_hash_undefined; |
| 1084 | h->u.undef.abfd = NULL; |
| 1085 | bfd_link_add_undef (link_info.hash, h); |
| 1086 | } |
| 1087 | } |
| 1088 | } |
| 1089 | |
| 1090 | /* Open input files and attatch to output sections */ |
| 1091 | static void |
| 1092 | map_input_to_output_sections (s, target, output_section_statement) |
| 1093 | lang_statement_union_type * s; |
| 1094 | CONST char *target; |
| 1095 | lang_output_section_statement_type * output_section_statement; |
| 1096 | { |
| 1097 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
| 1098 | { |
| 1099 | switch (s->header.type) |
| 1100 | { |
| 1101 | |
| 1102 | |
| 1103 | case lang_wild_statement_enum: |
| 1104 | wild (&s->wild_statement, s->wild_statement.section_name, |
| 1105 | s->wild_statement.filename, target, |
| 1106 | output_section_statement); |
| 1107 | |
| 1108 | break; |
| 1109 | case lang_constructors_statement_enum: |
| 1110 | map_input_to_output_sections (constructor_list.head, |
| 1111 | target, |
| 1112 | output_section_statement); |
| 1113 | break; |
| 1114 | case lang_output_section_statement_enum: |
| 1115 | map_input_to_output_sections (s->output_section_statement.children.head, |
| 1116 | target, |
| 1117 | &s->output_section_statement); |
| 1118 | break; |
| 1119 | case lang_output_statement_enum: |
| 1120 | break; |
| 1121 | case lang_target_statement_enum: |
| 1122 | target = s->target_statement.target; |
| 1123 | break; |
| 1124 | case lang_group_statement_enum: |
| 1125 | map_input_to_output_sections (s->group_statement.children.head, |
| 1126 | target, |
| 1127 | output_section_statement); |
| 1128 | break; |
| 1129 | case lang_fill_statement_enum: |
| 1130 | case lang_input_section_enum: |
| 1131 | case lang_object_symbols_statement_enum: |
| 1132 | case lang_data_statement_enum: |
| 1133 | case lang_reloc_statement_enum: |
| 1134 | case lang_assignment_statement_enum: |
| 1135 | case lang_padding_statement_enum: |
| 1136 | case lang_input_statement_enum: |
| 1137 | if (output_section_statement != NULL |
| 1138 | && output_section_statement->bfd_section == NULL) |
| 1139 | init_os (output_section_statement); |
| 1140 | break; |
| 1141 | case lang_afile_asection_pair_statement_enum: |
| 1142 | FAIL (); |
| 1143 | break; |
| 1144 | case lang_address_statement_enum: |
| 1145 | /* Mark the specified section with the supplied address */ |
| 1146 | { |
| 1147 | lang_output_section_statement_type *os = |
| 1148 | lang_output_section_statement_lookup |
| 1149 | (s->address_statement.section_name); |
| 1150 | |
| 1151 | if (os->bfd_section == NULL) |
| 1152 | init_os (os); |
| 1153 | os->addr_tree = s->address_statement.address; |
| 1154 | } |
| 1155 | break; |
| 1156 | } |
| 1157 | } |
| 1158 | } |
| 1159 | |
| 1160 | static void |
| 1161 | print_output_section_statement (output_section_statement) |
| 1162 | lang_output_section_statement_type * output_section_statement; |
| 1163 | { |
| 1164 | asection *section = output_section_statement->bfd_section; |
| 1165 | |
| 1166 | print_nl (); |
| 1167 | print_section (output_section_statement->name); |
| 1168 | |
| 1169 | |
| 1170 | if (section) |
| 1171 | { |
| 1172 | print_dot = section->vma; |
| 1173 | print_space (); |
| 1174 | print_section (""); |
| 1175 | print_space (); |
| 1176 | print_address (section->vma); |
| 1177 | print_space (); |
| 1178 | print_size (section->_raw_size); |
| 1179 | print_space (); |
| 1180 | print_size(section->_cooked_size); |
| 1181 | print_space (); |
| 1182 | print_alignment (section->alignment_power); |
| 1183 | print_space (); |
| 1184 | #if 0 |
| 1185 | fprintf (config.map_file, "%s flags", output_section_statement->region->name); |
| 1186 | print_flags (stdout, &output_section_statement->flags); |
| 1187 | #endif |
| 1188 | if (section->flags & SEC_LOAD) |
| 1189 | fprintf (config.map_file, "load "); |
| 1190 | if (section->flags & SEC_ALLOC) |
| 1191 | fprintf (config.map_file, "alloc "); |
| 1192 | if (section->flags & SEC_RELOC) |
| 1193 | fprintf (config.map_file, "reloc "); |
| 1194 | if (section->flags & SEC_HAS_CONTENTS) |
| 1195 | fprintf (config.map_file, "contents "); |
| 1196 | |
| 1197 | } |
| 1198 | else |
| 1199 | { |
| 1200 | fprintf (config.map_file, " (no attached output section)"); |
| 1201 | } |
| 1202 | print_nl (); |
| 1203 | if (output_section_statement->load_base) |
| 1204 | { |
| 1205 | int b = exp_get_abs_int(output_section_statement->load_base, |
| 1206 | 0, "output base", lang_final_phase_enum); |
| 1207 | fprintf (config.map_file, "Output address %08x\n", b); |
| 1208 | } |
| 1209 | if (output_section_statement->section_alignment >= 0 |
| 1210 | || output_section_statement->section_alignment >= 0) |
| 1211 | { |
| 1212 | fprintf (config.map_file, "\t\t\t\t\tforced alignment "); |
| 1213 | if (output_section_statement->section_alignment >= 0) |
| 1214 | { |
| 1215 | fprintf (config.map_file, "section 2**%d ",output_section_statement->section_alignment ); |
| 1216 | } |
| 1217 | if ( output_section_statement->subsection_alignment >= 0) |
| 1218 | { |
| 1219 | fprintf (config.map_file, "subsection 2**%d ",output_section_statement->subsection_alignment ); |
| 1220 | } |
| 1221 | |
| 1222 | print_nl (); |
| 1223 | } |
| 1224 | print_statement (output_section_statement->children.head, |
| 1225 | output_section_statement); |
| 1226 | |
| 1227 | } |
| 1228 | |
| 1229 | static void |
| 1230 | print_assignment (assignment, output_section) |
| 1231 | lang_assignment_statement_type * assignment; |
| 1232 | lang_output_section_statement_type * output_section; |
| 1233 | { |
| 1234 | etree_value_type result; |
| 1235 | |
| 1236 | print_section (""); |
| 1237 | print_space (); |
| 1238 | print_section (""); |
| 1239 | print_space (); |
| 1240 | print_address (print_dot); |
| 1241 | print_space (); |
| 1242 | result = exp_fold_tree (assignment->exp->assign.src, |
| 1243 | output_section, |
| 1244 | lang_final_phase_enum, |
| 1245 | print_dot, |
| 1246 | &print_dot); |
| 1247 | |
| 1248 | if (result.valid) |
| 1249 | { |
| 1250 | print_address (result.value); |
| 1251 | } |
| 1252 | else |
| 1253 | { |
| 1254 | fprintf (config.map_file, "*undefined*"); |
| 1255 | } |
| 1256 | print_space (); |
| 1257 | exp_print_tree (assignment->exp); |
| 1258 | |
| 1259 | fprintf (config.map_file, "\n"); |
| 1260 | } |
| 1261 | |
| 1262 | static void |
| 1263 | print_input_statement (statm) |
| 1264 | lang_input_statement_type * statm; |
| 1265 | { |
| 1266 | if (statm->filename != (char *) NULL) |
| 1267 | { |
| 1268 | fprintf (config.map_file, "LOAD %s\n", statm->filename); |
| 1269 | } |
| 1270 | } |
| 1271 | |
| 1272 | /* Print all the defined symbols for the abfd provided by in the supplied |
| 1273 | section. |
| 1274 | */ |
| 1275 | |
| 1276 | static boolean |
| 1277 | print_one_symbol (hash_entry, ptr) |
| 1278 | struct bfd_link_hash_entry *hash_entry; |
| 1279 | PTR ptr; |
| 1280 | { |
| 1281 | asection * sec = (asection *)ptr; |
| 1282 | |
| 1283 | if (hash_entry->type == bfd_link_hash_defined) |
| 1284 | { |
| 1285 | if (sec == hash_entry->u.def.section) { |
| 1286 | print_section (""); |
| 1287 | fprintf (config.map_file, " "); |
| 1288 | print_section (""); |
| 1289 | fprintf (config.map_file, " "); |
| 1290 | print_address (hash_entry->u.def.value + outside_section_address (sec)); |
| 1291 | fprintf (config.map_file, " %s", hash_entry->root.string); |
| 1292 | print_nl (); |
| 1293 | } |
| 1294 | } |
| 1295 | |
| 1296 | return true; |
| 1297 | } |
| 1298 | |
| 1299 | static void |
| 1300 | print_input_section (in) |
| 1301 | lang_input_section_type * in; |
| 1302 | { |
| 1303 | asection *i = in->section; |
| 1304 | bfd_size_type size = i->_cooked_size != 0 ? i->_cooked_size : i->_raw_size; |
| 1305 | |
| 1306 | if (size != 0) |
| 1307 | { |
| 1308 | print_section (""); |
| 1309 | fprintf (config.map_file, " "); |
| 1310 | print_section (i->name); |
| 1311 | fprintf (config.map_file, " "); |
| 1312 | if (i->output_section) |
| 1313 | { |
| 1314 | print_address (i->output_section->vma + i->output_offset); |
| 1315 | fprintf (config.map_file, " "); |
| 1316 | print_size (i->_raw_size); |
| 1317 | fprintf (config.map_file, " "); |
| 1318 | print_size(i->_cooked_size); |
| 1319 | fprintf (config.map_file, " "); |
| 1320 | print_alignment (i->alignment_power); |
| 1321 | fprintf (config.map_file, " "); |
| 1322 | if (in->ifile) |
| 1323 | { |
| 1324 | |
| 1325 | bfd *abfd = in->ifile->the_bfd; |
| 1326 | |
| 1327 | if (in->ifile->just_syms_flag == true) |
| 1328 | { |
| 1329 | fprintf (config.map_file, "symbols only "); |
| 1330 | } |
| 1331 | |
| 1332 | fprintf (config.map_file, " %s ", abfd->xvec->name); |
| 1333 | if (abfd->my_archive != (bfd *) NULL) |
| 1334 | { |
| 1335 | fprintf (config.map_file, "[%s]%s", abfd->my_archive->filename, |
| 1336 | abfd->filename); |
| 1337 | } |
| 1338 | else |
| 1339 | { |
| 1340 | fprintf (config.map_file, "%s", abfd->filename); |
| 1341 | } |
| 1342 | fprintf (config.map_file, "(overhead %d bytes)", (int) bfd_alloc_size (abfd)); |
| 1343 | print_nl (); |
| 1344 | |
| 1345 | /* Print all the symbols */ |
| 1346 | bfd_link_hash_traverse (link_info.hash, print_one_symbol, (PTR) i); |
| 1347 | } |
| 1348 | else |
| 1349 | { |
| 1350 | print_nl (); |
| 1351 | } |
| 1352 | |
| 1353 | |
| 1354 | print_dot = outside_section_address (i) + size; |
| 1355 | } |
| 1356 | else |
| 1357 | { |
| 1358 | fprintf (config.map_file, "No output section allocated\n"); |
| 1359 | } |
| 1360 | } |
| 1361 | } |
| 1362 | |
| 1363 | static void |
| 1364 | print_fill_statement (fill) |
| 1365 | lang_fill_statement_type * fill; |
| 1366 | { |
| 1367 | fprintf (config.map_file, "FILL mask "); |
| 1368 | print_fill (fill->fill); |
| 1369 | } |
| 1370 | |
| 1371 | static void |
| 1372 | print_data_statement (data) |
| 1373 | lang_data_statement_type * data; |
| 1374 | { |
| 1375 | /* bfd_vma value; */ |
| 1376 | print_section (""); |
| 1377 | print_space (); |
| 1378 | print_section (""); |
| 1379 | print_space (); |
| 1380 | /* ASSERT(print_dot == data->output_vma);*/ |
| 1381 | |
| 1382 | print_address (data->output_vma + data->output_section->vma); |
| 1383 | print_space (); |
| 1384 | print_address (data->value); |
| 1385 | print_space (); |
| 1386 | switch (data->type) |
| 1387 | { |
| 1388 | case BYTE: |
| 1389 | fprintf (config.map_file, "BYTE "); |
| 1390 | print_dot += BYTE_SIZE; |
| 1391 | break; |
| 1392 | case SHORT: |
| 1393 | fprintf (config.map_file, "SHORT "); |
| 1394 | print_dot += SHORT_SIZE; |
| 1395 | break; |
| 1396 | case LONG: |
| 1397 | fprintf (config.map_file, "LONG "); |
| 1398 | print_dot += LONG_SIZE; |
| 1399 | break; |
| 1400 | case QUAD: |
| 1401 | fprintf (config.map_file, "QUAD "); |
| 1402 | print_dot += QUAD_SIZE; |
| 1403 | break; |
| 1404 | } |
| 1405 | |
| 1406 | exp_print_tree (data->exp); |
| 1407 | |
| 1408 | fprintf (config.map_file, "\n"); |
| 1409 | } |
| 1410 | |
| 1411 | /* Print a reloc statement. */ |
| 1412 | |
| 1413 | static void |
| 1414 | print_reloc_statement (reloc) |
| 1415 | lang_reloc_statement_type *reloc; |
| 1416 | { |
| 1417 | print_section (""); |
| 1418 | print_space (); |
| 1419 | print_section (""); |
| 1420 | print_space (); |
| 1421 | |
| 1422 | /* ASSERT(print_dot == data->output_vma);*/ |
| 1423 | |
| 1424 | print_address (reloc->output_vma + reloc->output_section->vma); |
| 1425 | print_space (); |
| 1426 | print_address (reloc->addend_value); |
| 1427 | print_space (); |
| 1428 | |
| 1429 | fprintf (config.map_file, "RELOC %s ", reloc->howto->name); |
| 1430 | |
| 1431 | print_dot += bfd_get_reloc_size (reloc->howto); |
| 1432 | |
| 1433 | exp_print_tree (reloc->addend_exp); |
| 1434 | |
| 1435 | fprintf (config.map_file, "\n"); |
| 1436 | } |
| 1437 | |
| 1438 | static void |
| 1439 | print_padding_statement (s) |
| 1440 | lang_padding_statement_type * s; |
| 1441 | { |
| 1442 | print_section (""); |
| 1443 | print_space (); |
| 1444 | print_section ("*fill*"); |
| 1445 | print_space (); |
| 1446 | print_address (s->output_offset + s->output_section->vma); |
| 1447 | print_space (); |
| 1448 | print_size (s->size); |
| 1449 | print_space (); |
| 1450 | print_fill (s->fill); |
| 1451 | print_nl (); |
| 1452 | |
| 1453 | print_dot = s->output_offset + s->output_section->vma + s->size; |
| 1454 | |
| 1455 | } |
| 1456 | |
| 1457 | static void |
| 1458 | print_wild_statement (w, os) |
| 1459 | lang_wild_statement_type * w; |
| 1460 | lang_output_section_statement_type * os; |
| 1461 | { |
| 1462 | fprintf (config.map_file, " from "); |
| 1463 | if (w->filename != (char *) NULL) |
| 1464 | { |
| 1465 | fprintf (config.map_file, "%s", w->filename); |
| 1466 | } |
| 1467 | else |
| 1468 | { |
| 1469 | fprintf (config.map_file, "*"); |
| 1470 | } |
| 1471 | if (w->section_name != (char *) NULL) |
| 1472 | { |
| 1473 | fprintf (config.map_file, "(%s)", w->section_name); |
| 1474 | } |
| 1475 | else |
| 1476 | { |
| 1477 | fprintf (config.map_file, "(*)"); |
| 1478 | } |
| 1479 | print_nl (); |
| 1480 | print_statement (w->children.head, os); |
| 1481 | |
| 1482 | } |
| 1483 | |
| 1484 | /* Print a group statement. */ |
| 1485 | |
| 1486 | static void |
| 1487 | print_group (s, os) |
| 1488 | lang_group_statement_type *s; |
| 1489 | lang_output_section_statement_type *os; |
| 1490 | { |
| 1491 | fprintf (config.map_file, "START GROUP\n"); |
| 1492 | print_statement (s->children.head, os); |
| 1493 | fprintf (config.map_file, "END GROUP\n"); |
| 1494 | } |
| 1495 | |
| 1496 | static void |
| 1497 | print_statement (s, os) |
| 1498 | lang_statement_union_type * s; |
| 1499 | lang_output_section_statement_type * os; |
| 1500 | { |
| 1501 | while (s) |
| 1502 | { |
| 1503 | switch (s->header.type) |
| 1504 | { |
| 1505 | case lang_constructors_statement_enum: |
| 1506 | fprintf (config.map_file, "constructors:\n"); |
| 1507 | print_statement (constructor_list.head, os); |
| 1508 | break; |
| 1509 | case lang_wild_statement_enum: |
| 1510 | print_wild_statement (&s->wild_statement, os); |
| 1511 | break; |
| 1512 | default: |
| 1513 | fprintf (config.map_file, "Fail with %d\n", s->header.type); |
| 1514 | FAIL (); |
| 1515 | break; |
| 1516 | case lang_address_statement_enum: |
| 1517 | fprintf (config.map_file, "address\n"); |
| 1518 | break; |
| 1519 | case lang_object_symbols_statement_enum: |
| 1520 | fprintf (config.map_file, "object symbols\n"); |
| 1521 | break; |
| 1522 | case lang_fill_statement_enum: |
| 1523 | print_fill_statement (&s->fill_statement); |
| 1524 | break; |
| 1525 | case lang_data_statement_enum: |
| 1526 | print_data_statement (&s->data_statement); |
| 1527 | break; |
| 1528 | case lang_reloc_statement_enum: |
| 1529 | print_reloc_statement (&s->reloc_statement); |
| 1530 | break; |
| 1531 | case lang_input_section_enum: |
| 1532 | print_input_section (&s->input_section); |
| 1533 | break; |
| 1534 | case lang_padding_statement_enum: |
| 1535 | print_padding_statement (&s->padding_statement); |
| 1536 | break; |
| 1537 | case lang_output_section_statement_enum: |
| 1538 | print_output_section_statement (&s->output_section_statement); |
| 1539 | break; |
| 1540 | case lang_assignment_statement_enum: |
| 1541 | print_assignment (&s->assignment_statement, |
| 1542 | os); |
| 1543 | break; |
| 1544 | case lang_target_statement_enum: |
| 1545 | fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target); |
| 1546 | break; |
| 1547 | case lang_output_statement_enum: |
| 1548 | fprintf (config.map_file, "OUTPUT(%s %s)\n", |
| 1549 | s->output_statement.name, |
| 1550 | output_target ? output_target : ""); |
| 1551 | break; |
| 1552 | case lang_input_statement_enum: |
| 1553 | print_input_statement (&s->input_statement); |
| 1554 | break; |
| 1555 | case lang_group_statement_enum: |
| 1556 | print_group (&s->group_statement, os); |
| 1557 | break; |
| 1558 | case lang_afile_asection_pair_statement_enum: |
| 1559 | FAIL (); |
| 1560 | break; |
| 1561 | } |
| 1562 | s = s->next; |
| 1563 | } |
| 1564 | } |
| 1565 | |
| 1566 | |
| 1567 | static void |
| 1568 | print_statements () |
| 1569 | { |
| 1570 | print_statement (statement_list.head, |
| 1571 | abs_output_section); |
| 1572 | |
| 1573 | } |
| 1574 | |
| 1575 | static bfd_vma |
| 1576 | insert_pad (this_ptr, fill, power, output_section_statement, dot) |
| 1577 | lang_statement_union_type ** this_ptr; |
| 1578 | fill_type fill; |
| 1579 | unsigned int power; |
| 1580 | asection * output_section_statement; |
| 1581 | bfd_vma dot; |
| 1582 | { |
| 1583 | /* Align this section first to the |
| 1584 | input sections requirement, then |
| 1585 | to the output section's requirement. |
| 1586 | If this alignment is > than any seen before, |
| 1587 | then record it too. Perform the alignment by |
| 1588 | inserting a magic 'padding' statement. |
| 1589 | */ |
| 1590 | |
| 1591 | unsigned int alignment_needed = align_power (dot, power) - dot; |
| 1592 | |
| 1593 | if (alignment_needed != 0) |
| 1594 | { |
| 1595 | lang_statement_union_type *new = |
| 1596 | (lang_statement_union_type *) |
| 1597 | stat_alloc ((bfd_size_type) (sizeof (lang_padding_statement_type))); |
| 1598 | |
| 1599 | /* Link into existing chain */ |
| 1600 | new->header.next = *this_ptr; |
| 1601 | *this_ptr = new; |
| 1602 | new->header.type = lang_padding_statement_enum; |
| 1603 | new->padding_statement.output_section = output_section_statement; |
| 1604 | new->padding_statement.output_offset = |
| 1605 | dot - output_section_statement->vma; |
| 1606 | new->padding_statement.fill = fill; |
| 1607 | new->padding_statement.size = alignment_needed; |
| 1608 | } |
| 1609 | |
| 1610 | |
| 1611 | /* Remember the most restrictive alignment */ |
| 1612 | if (power > output_section_statement->alignment_power) |
| 1613 | { |
| 1614 | output_section_statement->alignment_power = power; |
| 1615 | } |
| 1616 | output_section_statement->_raw_size += alignment_needed; |
| 1617 | return alignment_needed + dot; |
| 1618 | |
| 1619 | } |
| 1620 | |
| 1621 | /* Work out how much this section will move the dot point */ |
| 1622 | static bfd_vma |
| 1623 | size_input_section (this_ptr, output_section_statement, fill, dot, relax) |
| 1624 | lang_statement_union_type ** this_ptr; |
| 1625 | lang_output_section_statement_type * output_section_statement; |
| 1626 | fill_type fill; |
| 1627 | bfd_vma dot; |
| 1628 | boolean relax; |
| 1629 | { |
| 1630 | lang_input_section_type *is = &((*this_ptr)->input_section); |
| 1631 | asection *i = is->section; |
| 1632 | |
| 1633 | if (is->ifile->just_syms_flag == false) |
| 1634 | { |
| 1635 | if (output_section_statement->subsection_alignment != -1) |
| 1636 | i->alignment_power = |
| 1637 | output_section_statement->subsection_alignment; |
| 1638 | |
| 1639 | dot = insert_pad (this_ptr, fill, i->alignment_power, |
| 1640 | output_section_statement->bfd_section, dot); |
| 1641 | |
| 1642 | /* Remember where in the output section this input section goes */ |
| 1643 | |
| 1644 | i->output_offset = dot - output_section_statement->bfd_section->vma; |
| 1645 | |
| 1646 | /* Mark how big the output section must be to contain this now |
| 1647 | */ |
| 1648 | if (i->_cooked_size != 0) |
| 1649 | dot += i->_cooked_size; |
| 1650 | else |
| 1651 | dot += i->_raw_size; |
| 1652 | output_section_statement->bfd_section->_raw_size = dot - output_section_statement->bfd_section->vma; |
| 1653 | } |
| 1654 | else |
| 1655 | { |
| 1656 | i->output_offset = i->vma - output_section_statement->bfd_section->vma; |
| 1657 | } |
| 1658 | |
| 1659 | return dot; |
| 1660 | } |
| 1661 | |
| 1662 | /* This variable indicates whether bfd_relax_section should be called |
| 1663 | again. */ |
| 1664 | |
| 1665 | static boolean relax_again; |
| 1666 | |
| 1667 | /* Set the sizes for all the output sections. */ |
| 1668 | |
| 1669 | bfd_vma |
| 1670 | lang_size_sections (s, output_section_statement, prev, fill, dot, relax) |
| 1671 | lang_statement_union_type * s; |
| 1672 | lang_output_section_statement_type * output_section_statement; |
| 1673 | lang_statement_union_type ** prev; |
| 1674 | fill_type fill; |
| 1675 | bfd_vma dot; |
| 1676 | boolean relax; |
| 1677 | { |
| 1678 | /* Size up the sections from their constituent parts */ |
| 1679 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
| 1680 | { |
| 1681 | switch (s->header.type) |
| 1682 | { |
| 1683 | |
| 1684 | case lang_output_section_statement_enum: |
| 1685 | { |
| 1686 | bfd_vma after; |
| 1687 | lang_output_section_statement_type *os = &s->output_section_statement; |
| 1688 | |
| 1689 | if (os->bfd_section == NULL) |
| 1690 | { |
| 1691 | /* This section was never actually created. */ |
| 1692 | break; |
| 1693 | } |
| 1694 | |
| 1695 | /* If this is a COFF shared library section, use the size and |
| 1696 | address from the input section. FIXME: This is COFF |
| 1697 | specific; it would be cleaner if there were some other way |
| 1698 | to do this, but nothing simple comes to mind. */ |
| 1699 | if ((os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) |
| 1700 | { |
| 1701 | asection *input; |
| 1702 | |
| 1703 | if (os->children.head == NULL |
| 1704 | || os->children.head->next != NULL |
| 1705 | || os->children.head->header.type != lang_input_section_enum) |
| 1706 | einfo ("%P%X: Internal error on COFF shared library section %s", |
| 1707 | os->name); |
| 1708 | |
| 1709 | input = os->children.head->input_section.section; |
| 1710 | bfd_set_section_vma (os->bfd_section->owner, |
| 1711 | os->bfd_section, |
| 1712 | bfd_section_vma (input->owner, input)); |
| 1713 | os->bfd_section->_raw_size = input->_raw_size; |
| 1714 | break; |
| 1715 | } |
| 1716 | |
| 1717 | if (bfd_is_abs_section (os->bfd_section)) |
| 1718 | { |
| 1719 | /* No matter what happens, an abs section starts at zero */ |
| 1720 | ASSERT (os->bfd_section->vma == 0); |
| 1721 | } |
| 1722 | else |
| 1723 | { |
| 1724 | if (os->addr_tree == (etree_type *) NULL) |
| 1725 | { |
| 1726 | /* No address specified for this section, get one |
| 1727 | from the region specification |
| 1728 | */ |
| 1729 | if (os->region == (lang_memory_region_type *) NULL) |
| 1730 | { |
| 1731 | os->region = lang_memory_region_lookup ("*default*"); |
| 1732 | } |
| 1733 | dot = os->region->current; |
| 1734 | if (os->section_alignment == -1) |
| 1735 | dot = align_power (dot, os->bfd_section->alignment_power); |
| 1736 | } |
| 1737 | else |
| 1738 | { |
| 1739 | etree_value_type r; |
| 1740 | |
| 1741 | r = exp_fold_tree (os->addr_tree, |
| 1742 | abs_output_section, |
| 1743 | lang_allocating_phase_enum, |
| 1744 | dot, &dot); |
| 1745 | if (r.valid == false) |
| 1746 | { |
| 1747 | einfo ("%F%S: non constant address expression for section %s\n", |
| 1748 | os->name); |
| 1749 | } |
| 1750 | dot = r.value; |
| 1751 | } |
| 1752 | /* The section starts here */ |
| 1753 | /* First, align to what the section needs */ |
| 1754 | |
| 1755 | if (os->section_alignment != -1) |
| 1756 | dot = align_power (dot, os->section_alignment); |
| 1757 | |
| 1758 | bfd_set_section_vma (0, os->bfd_section, dot); |
| 1759 | |
| 1760 | os->bfd_section->output_offset = 0; |
| 1761 | } |
| 1762 | |
| 1763 | (void) lang_size_sections (os->children.head, os, &os->children.head, |
| 1764 | os->fill, dot, relax); |
| 1765 | /* Ignore the size of the input sections, use the vma and size to */ |
| 1766 | /* align against */ |
| 1767 | |
| 1768 | after = ALIGN_N (os->bfd_section->vma + |
| 1769 | os->bfd_section->_raw_size, |
| 1770 | /* The coercion here is important, see ld.h. */ |
| 1771 | (bfd_vma) os->block_value); |
| 1772 | |
| 1773 | if (bfd_is_abs_section (os->bfd_section)) |
| 1774 | ASSERT (after == os->bfd_section->vma); |
| 1775 | else |
| 1776 | os->bfd_section->_raw_size = after - os->bfd_section->vma; |
| 1777 | dot = os->bfd_section->vma + os->bfd_section->_raw_size; |
| 1778 | os->processed = true; |
| 1779 | |
| 1780 | /* Replace into region ? */ |
| 1781 | if (os->region != (lang_memory_region_type *) NULL) |
| 1782 | { |
| 1783 | os->region->current = dot; |
| 1784 | /* Make sure this isn't silly */ |
| 1785 | if (( os->region->current |
| 1786 | > os->region->origin + os->region->length) |
| 1787 | || ( os->region->origin > os->region->current )) |
| 1788 | { |
| 1789 | einfo ("%X%P: region %s is full (%B section %s)\n", |
| 1790 | os->region->name, |
| 1791 | os->bfd_section->owner, |
| 1792 | os->bfd_section->name); |
| 1793 | /* Reset the region pointer */ |
| 1794 | os->region->current = 0; |
| 1795 | |
| 1796 | } |
| 1797 | |
| 1798 | } |
| 1799 | |
| 1800 | |
| 1801 | } |
| 1802 | |
| 1803 | break; |
| 1804 | case lang_constructors_statement_enum: |
| 1805 | dot = lang_size_sections (constructor_list.head, |
| 1806 | output_section_statement, |
| 1807 | &s->wild_statement.children.head, |
| 1808 | fill, |
| 1809 | dot, relax); |
| 1810 | break; |
| 1811 | |
| 1812 | case lang_data_statement_enum: |
| 1813 | { |
| 1814 | unsigned int size = 0; |
| 1815 | |
| 1816 | s->data_statement.output_vma = dot - output_section_statement->bfd_section->vma; |
| 1817 | s->data_statement.output_section = |
| 1818 | output_section_statement->bfd_section; |
| 1819 | |
| 1820 | switch (s->data_statement.type) |
| 1821 | { |
| 1822 | case QUAD: |
| 1823 | size = QUAD_SIZE; |
| 1824 | break; |
| 1825 | case LONG: |
| 1826 | size = LONG_SIZE; |
| 1827 | break; |
| 1828 | case SHORT: |
| 1829 | size = SHORT_SIZE; |
| 1830 | break; |
| 1831 | case BYTE: |
| 1832 | size = BYTE_SIZE; |
| 1833 | break; |
| 1834 | |
| 1835 | } |
| 1836 | dot += size; |
| 1837 | output_section_statement->bfd_section->_raw_size += size; |
| 1838 | } |
| 1839 | break; |
| 1840 | |
| 1841 | case lang_reloc_statement_enum: |
| 1842 | { |
| 1843 | int size; |
| 1844 | |
| 1845 | s->reloc_statement.output_vma = |
| 1846 | dot - output_section_statement->bfd_section->vma; |
| 1847 | s->reloc_statement.output_section = |
| 1848 | output_section_statement->bfd_section; |
| 1849 | size = bfd_get_reloc_size (s->reloc_statement.howto); |
| 1850 | dot += size; |
| 1851 | output_section_statement->bfd_section->_raw_size += size; |
| 1852 | } |
| 1853 | break; |
| 1854 | |
| 1855 | case lang_wild_statement_enum: |
| 1856 | |
| 1857 | dot = lang_size_sections (s->wild_statement.children.head, |
| 1858 | output_section_statement, |
| 1859 | &s->wild_statement.children.head, |
| 1860 | |
| 1861 | fill, dot, relax); |
| 1862 | |
| 1863 | break; |
| 1864 | |
| 1865 | case lang_object_symbols_statement_enum: |
| 1866 | link_info.create_object_symbols_section = |
| 1867 | output_section_statement->bfd_section; |
| 1868 | break; |
| 1869 | case lang_output_statement_enum: |
| 1870 | case lang_target_statement_enum: |
| 1871 | break; |
| 1872 | case lang_input_section_enum: |
| 1873 | { |
| 1874 | asection *i; |
| 1875 | |
| 1876 | i = (*prev)->input_section.section; |
| 1877 | if (! relax) |
| 1878 | i->_cooked_size = i->_raw_size; |
| 1879 | else |
| 1880 | { |
| 1881 | boolean again; |
| 1882 | |
| 1883 | if (! bfd_relax_section (i->owner, i, &link_info, &again)) |
| 1884 | einfo ("%P%F: can't relax section: %E\n"); |
| 1885 | if (again) |
| 1886 | relax_again = true; |
| 1887 | } |
| 1888 | dot = size_input_section (prev, |
| 1889 | output_section_statement, |
| 1890 | output_section_statement->fill, |
| 1891 | dot, relax); |
| 1892 | } |
| 1893 | break; |
| 1894 | case lang_input_statement_enum: |
| 1895 | break; |
| 1896 | case lang_fill_statement_enum: |
| 1897 | s->fill_statement.output_section = output_section_statement->bfd_section; |
| 1898 | |
| 1899 | fill = s->fill_statement.fill; |
| 1900 | break; |
| 1901 | case lang_assignment_statement_enum: |
| 1902 | { |
| 1903 | bfd_vma newdot = dot; |
| 1904 | |
| 1905 | exp_fold_tree (s->assignment_statement.exp, |
| 1906 | output_section_statement, |
| 1907 | lang_allocating_phase_enum, |
| 1908 | dot, |
| 1909 | &newdot); |
| 1910 | |
| 1911 | if (newdot != dot && !relax) |
| 1912 | { |
| 1913 | /* The assignment changed dot. Insert a pad. */ |
| 1914 | if (output_section_statement == abs_output_section) |
| 1915 | { |
| 1916 | /* If we don't have an output section, then just adjust |
| 1917 | the default memory address. */ |
| 1918 | lang_memory_region_lookup ("*default*")->current = newdot; |
| 1919 | } |
| 1920 | else |
| 1921 | { |
| 1922 | lang_statement_union_type *new = |
| 1923 | ((lang_statement_union_type *) |
| 1924 | stat_alloc (sizeof (lang_padding_statement_type))); |
| 1925 | |
| 1926 | /* Link into existing chain */ |
| 1927 | new->header.next = *prev; |
| 1928 | *prev = new; |
| 1929 | new->header.type = lang_padding_statement_enum; |
| 1930 | new->padding_statement.output_section = |
| 1931 | output_section_statement->bfd_section; |
| 1932 | new->padding_statement.output_offset = |
| 1933 | dot - output_section_statement->bfd_section->vma; |
| 1934 | new->padding_statement.fill = fill; |
| 1935 | new->padding_statement.size = newdot - dot; |
| 1936 | output_section_statement->bfd_section->_raw_size += |
| 1937 | new->padding_statement.size; |
| 1938 | } |
| 1939 | |
| 1940 | dot = newdot; |
| 1941 | } |
| 1942 | } |
| 1943 | break; |
| 1944 | |
| 1945 | case lang_padding_statement_enum: |
| 1946 | /* If we are relaxing, and this is not the first pass, some |
| 1947 | padding statements may have been inserted during previous |
| 1948 | passes. We may have to move the padding statement to a new |
| 1949 | location if dot has a different value at this point in this |
| 1950 | pass than it did at this point in the previous pass. */ |
| 1951 | s->padding_statement.output_offset = |
| 1952 | dot - output_section_statement->bfd_section->vma; |
| 1953 | dot += s->padding_statement.size; |
| 1954 | break; |
| 1955 | |
| 1956 | case lang_group_statement_enum: |
| 1957 | dot = lang_size_sections (s->group_statement.children.head, |
| 1958 | output_section_statement, |
| 1959 | &s->group_statement.children.head, |
| 1960 | fill, dot, relax); |
| 1961 | break; |
| 1962 | |
| 1963 | default: |
| 1964 | FAIL (); |
| 1965 | break; |
| 1966 | |
| 1967 | /* This can only get here when relaxing is turned on */ |
| 1968 | |
| 1969 | case lang_address_statement_enum: |
| 1970 | break; |
| 1971 | } |
| 1972 | prev = &s->header.next; |
| 1973 | } |
| 1974 | return dot; |
| 1975 | } |
| 1976 | |
| 1977 | bfd_vma |
| 1978 | lang_do_assignments (s, output_section_statement, fill, dot) |
| 1979 | lang_statement_union_type * s; |
| 1980 | lang_output_section_statement_type * output_section_statement; |
| 1981 | fill_type fill; |
| 1982 | bfd_vma dot; |
| 1983 | { |
| 1984 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
| 1985 | { |
| 1986 | switch (s->header.type) |
| 1987 | { |
| 1988 | case lang_constructors_statement_enum: |
| 1989 | dot = lang_do_assignments (constructor_list.head, |
| 1990 | output_section_statement, |
| 1991 | fill, |
| 1992 | dot); |
| 1993 | break; |
| 1994 | |
| 1995 | case lang_output_section_statement_enum: |
| 1996 | { |
| 1997 | lang_output_section_statement_type *os = |
| 1998 | &(s->output_section_statement); |
| 1999 | |
| 2000 | if (os->bfd_section != NULL) |
| 2001 | { |
| 2002 | dot = os->bfd_section->vma; |
| 2003 | (void) lang_do_assignments (os->children.head, os, |
| 2004 | os->fill, dot); |
| 2005 | dot = os->bfd_section->vma + os->bfd_section->_raw_size; |
| 2006 | } |
| 2007 | if (os->load_base) |
| 2008 | { |
| 2009 | /* If nothing has been placed into the output section then |
| 2010 | it won't have a bfd_section. */ |
| 2011 | if (os->bfd_section) |
| 2012 | { |
| 2013 | os->bfd_section->lma |
| 2014 | = exp_get_abs_int(os->load_base, 0,"load base", lang_final_phase_enum); |
| 2015 | } |
| 2016 | } |
| 2017 | } |
| 2018 | break; |
| 2019 | case lang_wild_statement_enum: |
| 2020 | |
| 2021 | dot = lang_do_assignments (s->wild_statement.children.head, |
| 2022 | output_section_statement, |
| 2023 | fill, dot); |
| 2024 | |
| 2025 | break; |
| 2026 | |
| 2027 | case lang_object_symbols_statement_enum: |
| 2028 | case lang_output_statement_enum: |
| 2029 | case lang_target_statement_enum: |
| 2030 | #if 0 |
| 2031 | case lang_common_statement_enum: |
| 2032 | #endif |
| 2033 | break; |
| 2034 | case lang_data_statement_enum: |
| 2035 | { |
| 2036 | etree_value_type value; |
| 2037 | |
| 2038 | value = exp_fold_tree (s->data_statement.exp, |
| 2039 | abs_output_section, |
| 2040 | lang_final_phase_enum, dot, &dot); |
| 2041 | s->data_statement.value = value.value; |
| 2042 | if (value.valid == false) |
| 2043 | einfo ("%F%P: invalid data statement\n"); |
| 2044 | } |
| 2045 | switch (s->data_statement.type) |
| 2046 | { |
| 2047 | case QUAD: |
| 2048 | dot += QUAD_SIZE; |
| 2049 | break; |
| 2050 | case LONG: |
| 2051 | dot += LONG_SIZE; |
| 2052 | break; |
| 2053 | case SHORT: |
| 2054 | dot += SHORT_SIZE; |
| 2055 | break; |
| 2056 | case BYTE: |
| 2057 | dot += BYTE_SIZE; |
| 2058 | break; |
| 2059 | } |
| 2060 | break; |
| 2061 | |
| 2062 | case lang_reloc_statement_enum: |
| 2063 | { |
| 2064 | etree_value_type value; |
| 2065 | |
| 2066 | value = exp_fold_tree (s->reloc_statement.addend_exp, |
| 2067 | abs_output_section, |
| 2068 | lang_final_phase_enum, dot, &dot); |
| 2069 | s->reloc_statement.addend_value = value.value; |
| 2070 | if (value.valid == false) |
| 2071 | einfo ("%F%P: invalid reloc statement\n"); |
| 2072 | } |
| 2073 | dot += bfd_get_reloc_size (s->reloc_statement.howto); |
| 2074 | break; |
| 2075 | |
| 2076 | case lang_input_section_enum: |
| 2077 | { |
| 2078 | asection *in = s->input_section.section; |
| 2079 | |
| 2080 | if (in->_cooked_size != 0) |
| 2081 | dot += in->_cooked_size; |
| 2082 | else |
| 2083 | dot += in->_raw_size; |
| 2084 | } |
| 2085 | break; |
| 2086 | |
| 2087 | case lang_input_statement_enum: |
| 2088 | break; |
| 2089 | case lang_fill_statement_enum: |
| 2090 | fill = s->fill_statement.fill; |
| 2091 | break; |
| 2092 | case lang_assignment_statement_enum: |
| 2093 | { |
| 2094 | exp_fold_tree (s->assignment_statement.exp, |
| 2095 | output_section_statement, |
| 2096 | lang_final_phase_enum, |
| 2097 | dot, |
| 2098 | &dot); |
| 2099 | } |
| 2100 | |
| 2101 | break; |
| 2102 | case lang_padding_statement_enum: |
| 2103 | dot += s->padding_statement.size; |
| 2104 | break; |
| 2105 | |
| 2106 | case lang_group_statement_enum: |
| 2107 | dot = lang_do_assignments (s->group_statement.children.head, |
| 2108 | output_section_statement, |
| 2109 | fill, dot); |
| 2110 | |
| 2111 | break; |
| 2112 | |
| 2113 | default: |
| 2114 | FAIL (); |
| 2115 | break; |
| 2116 | case lang_address_statement_enum: |
| 2117 | break; |
| 2118 | } |
| 2119 | |
| 2120 | } |
| 2121 | return dot; |
| 2122 | } |
| 2123 | |
| 2124 | static void |
| 2125 | lang_finish () |
| 2126 | { |
| 2127 | struct bfd_link_hash_entry *h; |
| 2128 | boolean warn = link_info.relocateable ? false : true; |
| 2129 | |
| 2130 | if (entry_symbol == (char *) NULL) |
| 2131 | { |
| 2132 | /* No entry has been specified. Look for start, but don't warn |
| 2133 | if we don't find it. */ |
| 2134 | entry_symbol = "start"; |
| 2135 | warn = false; |
| 2136 | } |
| 2137 | |
| 2138 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol, false, false, true); |
| 2139 | if (h != (struct bfd_link_hash_entry *) NULL |
| 2140 | && h->type == bfd_link_hash_defined) |
| 2141 | { |
| 2142 | bfd_vma val; |
| 2143 | |
| 2144 | val = (h->u.def.value |
| 2145 | + bfd_get_section_vma (output_bfd, |
| 2146 | h->u.def.section->output_section) |
| 2147 | + h->u.def.section->output_offset); |
| 2148 | if (! bfd_set_start_address (output_bfd, val)) |
| 2149 | einfo ("%P%F:%s: can't set start address\n", entry_symbol); |
| 2150 | } |
| 2151 | else |
| 2152 | { |
| 2153 | asection *ts; |
| 2154 | |
| 2155 | /* Can't find the entry symbol. Use the first address in the |
| 2156 | text section. */ |
| 2157 | ts = bfd_get_section_by_name (output_bfd, ".text"); |
| 2158 | if (ts != (asection *) NULL) |
| 2159 | { |
| 2160 | if (warn) |
| 2161 | einfo ("%P: warning: cannot find entry symbol %s; defaulting to %V\n", |
| 2162 | entry_symbol, bfd_get_section_vma (output_bfd, ts)); |
| 2163 | if (! bfd_set_start_address (output_bfd, |
| 2164 | bfd_get_section_vma (output_bfd, ts))) |
| 2165 | einfo ("%P%F: can't set start address\n"); |
| 2166 | } |
| 2167 | else |
| 2168 | { |
| 2169 | if (warn) |
| 2170 | einfo ("%P: warning: cannot find entry symbol %s; not setting start address\n", |
| 2171 | entry_symbol); |
| 2172 | } |
| 2173 | } |
| 2174 | } |
| 2175 | |
| 2176 | /* Check that the architecture of all the input files is compatible |
| 2177 | with the output file. */ |
| 2178 | |
| 2179 | static void |
| 2180 | lang_check () |
| 2181 | { |
| 2182 | lang_statement_union_type *file; |
| 2183 | bfd *input_bfd; |
| 2184 | CONST bfd_arch_info_type *compatible; |
| 2185 | |
| 2186 | for (file = file_chain.head; |
| 2187 | file != (lang_statement_union_type *) NULL; |
| 2188 | file = file->input_statement.next) |
| 2189 | { |
| 2190 | input_bfd = file->input_statement.the_bfd; |
| 2191 | compatible = bfd_arch_get_compatible (input_bfd, |
| 2192 | output_bfd); |
| 2193 | if (compatible == NULL) |
| 2194 | einfo ("%P: warning: %s architecture of input file `%B' is incompatible with %s output\n", |
| 2195 | bfd_printable_name (input_bfd), input_bfd, |
| 2196 | bfd_printable_name (output_bfd)); |
| 2197 | } |
| 2198 | } |
| 2199 | |
| 2200 | /* Look through all the global common symbols and attach them to the |
| 2201 | correct section. The -sort-common command line switch may be used |
| 2202 | to roughly sort the entries by size. */ |
| 2203 | |
| 2204 | static void |
| 2205 | lang_common () |
| 2206 | { |
| 2207 | if (link_info.relocateable |
| 2208 | && ! command_line.force_common_definition) |
| 2209 | return; |
| 2210 | |
| 2211 | if (! config.sort_common) |
| 2212 | bfd_link_hash_traverse (link_info.hash, lang_one_common, (PTR) NULL); |
| 2213 | else |
| 2214 | { |
| 2215 | unsigned int power; |
| 2216 | |
| 2217 | for (power = 1; power < 4; power++) |
| 2218 | bfd_link_hash_traverse (link_info.hash, lang_one_common, |
| 2219 | (PTR) &power); |
| 2220 | } |
| 2221 | } |
| 2222 | |
| 2223 | /* Place one common symbol in the correct section. */ |
| 2224 | |
| 2225 | static boolean |
| 2226 | lang_one_common (h, info) |
| 2227 | struct bfd_link_hash_entry *h; |
| 2228 | PTR info; |
| 2229 | { |
| 2230 | unsigned int power_of_two; |
| 2231 | bfd_vma size; |
| 2232 | asection *section; |
| 2233 | |
| 2234 | if (h->type != bfd_link_hash_common) |
| 2235 | return true; |
| 2236 | |
| 2237 | size = h->u.c.size; |
| 2238 | power_of_two = h->u.c.alignment_power; |
| 2239 | |
| 2240 | if (config.sort_common |
| 2241 | && power_of_two < *(unsigned int *) info |
| 2242 | && *(unsigned int *) info < 4) |
| 2243 | return true; |
| 2244 | |
| 2245 | section = h->u.c.section; |
| 2246 | |
| 2247 | /* Increase the size of the section. */ |
| 2248 | section->_raw_size = ALIGN_N (section->_raw_size, |
| 2249 | (bfd_size_type) (1 << power_of_two)); |
| 2250 | |
| 2251 | /* Adjust the alignment if necessary. */ |
| 2252 | if (power_of_two > section->alignment_power) |
| 2253 | section->alignment_power = power_of_two; |
| 2254 | |
| 2255 | /* Change the symbol from common to defined. */ |
| 2256 | h->type = bfd_link_hash_defined; |
| 2257 | h->u.def.section = section; |
| 2258 | h->u.def.value = section->_raw_size; |
| 2259 | |
| 2260 | /* Increase the size of the section. */ |
| 2261 | section->_raw_size += size; |
| 2262 | |
| 2263 | if (config.map_file != NULL) |
| 2264 | fprintf (config.map_file, "Allocating common %s: %lx at %lx %s\n", |
| 2265 | h->root.string, (unsigned long) size, |
| 2266 | (unsigned long) h->u.def.value, section->owner->filename); |
| 2267 | |
| 2268 | return true; |
| 2269 | } |
| 2270 | |
| 2271 | /* |
| 2272 | run through the input files and ensure that every input |
| 2273 | section has somewhere to go. If one is found without |
| 2274 | a destination then create an input request and place it |
| 2275 | into the statement tree. |
| 2276 | */ |
| 2277 | |
| 2278 | static void |
| 2279 | lang_place_orphans () |
| 2280 | { |
| 2281 | lang_input_statement_type *file; |
| 2282 | |
| 2283 | for (file = (lang_input_statement_type *) file_chain.head; |
| 2284 | file != (lang_input_statement_type *) NULL; |
| 2285 | file = (lang_input_statement_type *) file->next) |
| 2286 | { |
| 2287 | asection *s; |
| 2288 | |
| 2289 | if (file->just_syms_flag) |
| 2290 | continue; |
| 2291 | |
| 2292 | for (s = file->the_bfd->sections; |
| 2293 | s != (asection *) NULL; |
| 2294 | s = s->next) |
| 2295 | { |
| 2296 | if (s->output_section == (asection *) NULL) |
| 2297 | { |
| 2298 | /* This section of the file is not attatched, root |
| 2299 | around for a sensible place for it to go */ |
| 2300 | |
| 2301 | if (file->common_section == s) |
| 2302 | { |
| 2303 | /* This is a lonely common section which must |
| 2304 | have come from an archive. We attatch to the |
| 2305 | section with the wildcard */ |
| 2306 | if (! link_info.relocateable |
| 2307 | && ! command_line.force_common_definition) |
| 2308 | { |
| 2309 | if (default_common_section == |
| 2310 | (lang_output_section_statement_type *) NULL) |
| 2311 | { |
| 2312 | info_msg ("%P: no [COMMON] command, defaulting to .bss\n"); |
| 2313 | |
| 2314 | default_common_section = |
| 2315 | lang_output_section_statement_lookup (".bss"); |
| 2316 | |
| 2317 | } |
| 2318 | wild_doit (&default_common_section->children, s, |
| 2319 | default_common_section, file); |
| 2320 | } |
| 2321 | } |
| 2322 | else if (ldemul_place_orphan (file, s)) |
| 2323 | ; |
| 2324 | else |
| 2325 | { |
| 2326 | lang_output_section_statement_type *os = |
| 2327 | lang_output_section_statement_lookup (s->name); |
| 2328 | |
| 2329 | wild_doit (&os->children, s, os, file); |
| 2330 | } |
| 2331 | } |
| 2332 | } |
| 2333 | } |
| 2334 | } |
| 2335 | |
| 2336 | |
| 2337 | void |
| 2338 | lang_set_flags (ptr, flags) |
| 2339 | int *ptr; |
| 2340 | CONST char *flags; |
| 2341 | { |
| 2342 | boolean state = false; |
| 2343 | |
| 2344 | *ptr = 0; |
| 2345 | while (*flags) |
| 2346 | { |
| 2347 | if (*flags == '!') |
| 2348 | { |
| 2349 | state = false; |
| 2350 | flags++; |
| 2351 | } |
| 2352 | else |
| 2353 | state = true; |
| 2354 | switch (*flags) |
| 2355 | { |
| 2356 | case 'R': |
| 2357 | /* ptr->flag_read = state; */ |
| 2358 | break; |
| 2359 | case 'W': |
| 2360 | /* ptr->flag_write = state; */ |
| 2361 | break; |
| 2362 | case 'X': |
| 2363 | /* ptr->flag_executable= state;*/ |
| 2364 | break; |
| 2365 | case 'L': |
| 2366 | case 'I': |
| 2367 | /* ptr->flag_loadable= state;*/ |
| 2368 | break; |
| 2369 | default: |
| 2370 | einfo ("%P%F: invalid syntax in flags\n"); |
| 2371 | break; |
| 2372 | } |
| 2373 | flags++; |
| 2374 | } |
| 2375 | } |
| 2376 | |
| 2377 | /* Call a function on each input file. This function will be called |
| 2378 | on an archive, but not on the elements. */ |
| 2379 | |
| 2380 | void |
| 2381 | lang_for_each_input_file (func) |
| 2382 | void (*func) PARAMS ((lang_input_statement_type *)); |
| 2383 | { |
| 2384 | lang_input_statement_type *f; |
| 2385 | |
| 2386 | for (f = (lang_input_statement_type *) input_file_chain.head; |
| 2387 | f != NULL; |
| 2388 | f = (lang_input_statement_type *) f->next_real_file) |
| 2389 | func (f); |
| 2390 | } |
| 2391 | |
| 2392 | /* Call a function on each file. The function will be called on all |
| 2393 | the elements of an archive which are included in the link, but will |
| 2394 | not be called on the archive file itself. */ |
| 2395 | |
| 2396 | void |
| 2397 | lang_for_each_file (func) |
| 2398 | void (*func) PARAMS ((lang_input_statement_type *)); |
| 2399 | { |
| 2400 | lang_input_statement_type *f; |
| 2401 | |
| 2402 | for (f = (lang_input_statement_type *) file_chain.head; |
| 2403 | f != (lang_input_statement_type *) NULL; |
| 2404 | f = (lang_input_statement_type *) f->next) |
| 2405 | { |
| 2406 | func (f); |
| 2407 | } |
| 2408 | } |
| 2409 | |
| 2410 | #if 0 |
| 2411 | |
| 2412 | /* Not used. */ |
| 2413 | |
| 2414 | void |
| 2415 | lang_for_each_input_section (func) |
| 2416 | void (*func) PARAMS ((bfd * ab, asection * as)); |
| 2417 | { |
| 2418 | lang_input_statement_type *f; |
| 2419 | |
| 2420 | for (f = (lang_input_statement_type *) file_chain.head; |
| 2421 | f != (lang_input_statement_type *) NULL; |
| 2422 | f = (lang_input_statement_type *) f->next) |
| 2423 | { |
| 2424 | asection *s; |
| 2425 | |
| 2426 | for (s = f->the_bfd->sections; |
| 2427 | s != (asection *) NULL; |
| 2428 | s = s->next) |
| 2429 | { |
| 2430 | func (f->the_bfd, s); |
| 2431 | } |
| 2432 | } |
| 2433 | } |
| 2434 | |
| 2435 | #endif |
| 2436 | |
| 2437 | void |
| 2438 | ldlang_add_file (entry) |
| 2439 | lang_input_statement_type * entry; |
| 2440 | { |
| 2441 | bfd **pp; |
| 2442 | |
| 2443 | lang_statement_append (&file_chain, |
| 2444 | (lang_statement_union_type *) entry, |
| 2445 | &entry->next); |
| 2446 | |
| 2447 | /* The BFD linker needs to have a list of all input BFDs involved in |
| 2448 | a link. */ |
| 2449 | ASSERT (entry->the_bfd->link_next == (bfd *) NULL); |
| 2450 | ASSERT (entry->the_bfd != output_bfd); |
| 2451 | for (pp = &link_info.input_bfds; |
| 2452 | *pp != (bfd *) NULL; |
| 2453 | pp = &(*pp)->link_next) |
| 2454 | ; |
| 2455 | *pp = entry->the_bfd; |
| 2456 | entry->the_bfd->usrdata = (PTR) entry; |
| 2457 | bfd_set_gp_size (entry->the_bfd, g_switch_value); |
| 2458 | } |
| 2459 | |
| 2460 | void |
| 2461 | lang_add_output (name, from_script) |
| 2462 | CONST char *name; |
| 2463 | int from_script; |
| 2464 | { |
| 2465 | /* Make -o on command line override OUTPUT in script. */ |
| 2466 | if (had_output_filename == false || !from_script) |
| 2467 | { |
| 2468 | output_filename = name; |
| 2469 | had_output_filename = true; |
| 2470 | } |
| 2471 | } |
| 2472 | |
| 2473 | |
| 2474 | static lang_output_section_statement_type *current_section; |
| 2475 | |
| 2476 | static int topower(x) |
| 2477 | int x; |
| 2478 | { |
| 2479 | unsigned int i = 1; |
| 2480 | int l; |
| 2481 | if (x < 0) return -1; |
| 2482 | for (l = 0; l < 32; l++) |
| 2483 | { |
| 2484 | if (i >= x) return l; |
| 2485 | i<<=1; |
| 2486 | } |
| 2487 | return 0; |
| 2488 | } |
| 2489 | void |
| 2490 | lang_enter_output_section_statement (output_section_statement_name, |
| 2491 | address_exp, flags, block_value, |
| 2492 | align, subalign, ebase) |
| 2493 | const char *output_section_statement_name; |
| 2494 | etree_type * address_exp; |
| 2495 | int flags; |
| 2496 | bfd_vma block_value; |
| 2497 | etree_type *align; |
| 2498 | etree_type *subalign; |
| 2499 | etree_type *ebase; |
| 2500 | { |
| 2501 | lang_output_section_statement_type *os; |
| 2502 | |
| 2503 | current_section = |
| 2504 | os = |
| 2505 | lang_output_section_statement_lookup (output_section_statement_name); |
| 2506 | |
| 2507 | |
| 2508 | |
| 2509 | /* Add this statement to tree */ |
| 2510 | /* add_statement(lang_output_section_statement_enum, |
| 2511 | output_section_statement);*/ |
| 2512 | /* Make next things chain into subchain of this */ |
| 2513 | |
| 2514 | if (os->addr_tree == |
| 2515 | (etree_type *) NULL) |
| 2516 | { |
| 2517 | os->addr_tree = |
| 2518 | address_exp; |
| 2519 | } |
| 2520 | os->flags = flags; |
| 2521 | if (flags & SEC_NEVER_LOAD) |
| 2522 | os->loadable = 0; |
| 2523 | else |
| 2524 | os->loadable = 1; |
| 2525 | os->block_value = block_value ? block_value : 1; |
| 2526 | stat_ptr = &os->children; |
| 2527 | |
| 2528 | os->subsection_alignment = topower( |
| 2529 | exp_get_value_int(subalign, -1, |
| 2530 | "subsection alignment", |
| 2531 | 0)); |
| 2532 | os->section_alignment = topower( |
| 2533 | exp_get_value_int(align, -1, |
| 2534 | "section alignment", 0)); |
| 2535 | |
| 2536 | os->load_base = ebase; |
| 2537 | } |
| 2538 | |
| 2539 | |
| 2540 | void |
| 2541 | lang_final () |
| 2542 | { |
| 2543 | lang_output_statement_type *new = |
| 2544 | new_stat (lang_output_statement, stat_ptr); |
| 2545 | |
| 2546 | new->name = output_filename; |
| 2547 | } |
| 2548 | |
| 2549 | /* Reset the current counters in the regions */ |
| 2550 | static void |
| 2551 | reset_memory_regions () |
| 2552 | { |
| 2553 | lang_memory_region_type *p = lang_memory_region_list; |
| 2554 | |
| 2555 | for (p = lang_memory_region_list; |
| 2556 | p != (lang_memory_region_type *) NULL; |
| 2557 | p = p->next) |
| 2558 | { |
| 2559 | p->old_length = (bfd_size_type) (p->current - p->origin); |
| 2560 | p->current = p->origin; |
| 2561 | } |
| 2562 | } |
| 2563 | |
| 2564 | void |
| 2565 | lang_process () |
| 2566 | { |
| 2567 | lang_reasonable_defaults (); |
| 2568 | current_target = default_target; |
| 2569 | |
| 2570 | lang_for_each_statement (ldlang_open_output); /* Open the output file */ |
| 2571 | |
| 2572 | ldemul_create_output_section_statements (); |
| 2573 | |
| 2574 | /* Add to the hash table all undefineds on the command line */ |
| 2575 | lang_place_undefineds (); |
| 2576 | |
| 2577 | /* Create a bfd for each input file */ |
| 2578 | current_target = default_target; |
| 2579 | open_input_bfds (statement_list.head, false); |
| 2580 | |
| 2581 | /* Build all sets based on the information gathered from the input |
| 2582 | files. */ |
| 2583 | ldctor_build_sets (); |
| 2584 | |
| 2585 | /* Size up the common data */ |
| 2586 | lang_common (); |
| 2587 | |
| 2588 | /* Run through the contours of the script and attatch input sections |
| 2589 | to the correct output sections |
| 2590 | */ |
| 2591 | map_input_to_output_sections (statement_list.head, (char *) NULL, |
| 2592 | (lang_output_section_statement_type *) NULL); |
| 2593 | |
| 2594 | |
| 2595 | /* Find any sections not attatched explicitly and handle them */ |
| 2596 | lang_place_orphans (); |
| 2597 | |
| 2598 | ldemul_before_allocation (); |
| 2599 | |
| 2600 | /* Now run around and relax if we can */ |
| 2601 | if (command_line.relax) |
| 2602 | { |
| 2603 | /* First time round is a trial run to get the 'worst case' |
| 2604 | addresses of the objects if there was no relaxing. */ |
| 2605 | lang_size_sections (statement_list.head, |
| 2606 | abs_output_section, |
| 2607 | &(statement_list.head), 0, (bfd_vma) 0, false); |
| 2608 | |
| 2609 | |
| 2610 | reset_memory_regions (); |
| 2611 | |
| 2612 | /* Keep relaxing until bfd_relax_section gives up. */ |
| 2613 | do |
| 2614 | { |
| 2615 | relax_again = false; |
| 2616 | |
| 2617 | /* Do all the assignments with our current guesses as to |
| 2618 | section sizes. */ |
| 2619 | lang_do_assignments (statement_list.head, |
| 2620 | abs_output_section, |
| 2621 | (fill_type) 0, (bfd_vma) 0); |
| 2622 | |
| 2623 | /* Perform another relax pass - this time we know where the |
| 2624 | globals are, so can make better guess. */ |
| 2625 | lang_size_sections (statement_list.head, |
| 2626 | abs_output_section, |
| 2627 | &(statement_list.head), 0, (bfd_vma) 0, true); |
| 2628 | } |
| 2629 | while (relax_again); |
| 2630 | } |
| 2631 | else |
| 2632 | { |
| 2633 | /* Size up the sections. */ |
| 2634 | lang_size_sections (statement_list.head, |
| 2635 | abs_output_section, |
| 2636 | &(statement_list.head), 0, (bfd_vma) 0, false); |
| 2637 | } |
| 2638 | |
| 2639 | /* See if anything special should be done now we know how big |
| 2640 | everything is. */ |
| 2641 | ldemul_after_allocation (); |
| 2642 | |
| 2643 | /* Do all the assignments, now that we know the final restingplaces |
| 2644 | of all the symbols */ |
| 2645 | |
| 2646 | lang_do_assignments (statement_list.head, |
| 2647 | abs_output_section, |
| 2648 | (fill_type) 0, (bfd_vma) 0); |
| 2649 | |
| 2650 | /* Make sure that we're not mixing architectures */ |
| 2651 | |
| 2652 | lang_check (); |
| 2653 | |
| 2654 | /* Final stuffs */ |
| 2655 | |
| 2656 | ldemul_finish (); |
| 2657 | lang_finish (); |
| 2658 | } |
| 2659 | |
| 2660 | /* EXPORTED TO YACC */ |
| 2661 | |
| 2662 | void |
| 2663 | lang_add_wild (section_name, filename) |
| 2664 | CONST char *CONST section_name; |
| 2665 | CONST char *CONST filename; |
| 2666 | { |
| 2667 | lang_wild_statement_type *new = new_stat (lang_wild_statement, |
| 2668 | stat_ptr); |
| 2669 | |
| 2670 | if (section_name != (char *) NULL && strcmp (section_name, "COMMON") == 0) |
| 2671 | { |
| 2672 | placed_commons = true; |
| 2673 | } |
| 2674 | if (filename != (char *) NULL) |
| 2675 | { |
| 2676 | lang_has_input_file = true; |
| 2677 | } |
| 2678 | new->section_name = section_name; |
| 2679 | new->filename = filename; |
| 2680 | lang_list_init (&new->children); |
| 2681 | } |
| 2682 | |
| 2683 | void |
| 2684 | lang_section_start (name, address) |
| 2685 | CONST char *name; |
| 2686 | etree_type * address; |
| 2687 | { |
| 2688 | lang_address_statement_type *ad = new_stat (lang_address_statement, stat_ptr); |
| 2689 | |
| 2690 | ad->section_name = name; |
| 2691 | ad->address = address; |
| 2692 | } |
| 2693 | |
| 2694 | /* Set the start symbol to NAME. CMDLINE is nonzero if this is called |
| 2695 | because of a -e argument on the command line, or zero if this is |
| 2696 | called by ENTRY in a linker script. Command line arguments take |
| 2697 | precedence. */ |
| 2698 | |
| 2699 | void |
| 2700 | lang_add_entry (name, cmdline) |
| 2701 | CONST char *name; |
| 2702 | int cmdline; |
| 2703 | { |
| 2704 | static int from_cmdline; |
| 2705 | |
| 2706 | if (entry_symbol == NULL |
| 2707 | || cmdline |
| 2708 | || ! from_cmdline) |
| 2709 | { |
| 2710 | entry_symbol = name; |
| 2711 | from_cmdline = cmdline; |
| 2712 | } |
| 2713 | } |
| 2714 | |
| 2715 | void |
| 2716 | lang_add_target (name) |
| 2717 | CONST char *name; |
| 2718 | { |
| 2719 | lang_target_statement_type *new = new_stat (lang_target_statement, |
| 2720 | stat_ptr); |
| 2721 | |
| 2722 | new->target = name; |
| 2723 | |
| 2724 | } |
| 2725 | |
| 2726 | void |
| 2727 | lang_add_map (name) |
| 2728 | CONST char *name; |
| 2729 | { |
| 2730 | while (*name) |
| 2731 | { |
| 2732 | switch (*name) |
| 2733 | { |
| 2734 | case 'F': |
| 2735 | map_option_f = true; |
| 2736 | break; |
| 2737 | } |
| 2738 | name++; |
| 2739 | } |
| 2740 | } |
| 2741 | |
| 2742 | void |
| 2743 | lang_add_fill (exp) |
| 2744 | int exp; |
| 2745 | { |
| 2746 | lang_fill_statement_type *new = new_stat (lang_fill_statement, |
| 2747 | stat_ptr); |
| 2748 | |
| 2749 | new->fill = exp; |
| 2750 | } |
| 2751 | |
| 2752 | void |
| 2753 | lang_add_data (type, exp) |
| 2754 | int type; |
| 2755 | union etree_union *exp; |
| 2756 | { |
| 2757 | |
| 2758 | lang_data_statement_type *new = new_stat (lang_data_statement, |
| 2759 | stat_ptr); |
| 2760 | |
| 2761 | new->exp = exp; |
| 2762 | new->type = type; |
| 2763 | |
| 2764 | } |
| 2765 | |
| 2766 | /* Create a new reloc statement. RELOC is the BFD relocation type to |
| 2767 | generate. HOWTO is the corresponding howto structure (we could |
| 2768 | look this up, but the caller has already done so). SECTION is the |
| 2769 | section to generate a reloc against, or NAME is the name of the |
| 2770 | symbol to generate a reloc against. Exactly one of SECTION and |
| 2771 | NAME must be NULL. ADDEND is an expression for the addend. */ |
| 2772 | |
| 2773 | void |
| 2774 | lang_add_reloc (reloc, howto, section, name, addend) |
| 2775 | bfd_reloc_code_real_type reloc; |
| 2776 | const reloc_howto_type *howto; |
| 2777 | asection *section; |
| 2778 | const char *name; |
| 2779 | union etree_union *addend; |
| 2780 | { |
| 2781 | lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr); |
| 2782 | |
| 2783 | p->reloc = reloc; |
| 2784 | p->howto = howto; |
| 2785 | p->section = section; |
| 2786 | p->name = name; |
| 2787 | p->addend_exp = addend; |
| 2788 | |
| 2789 | p->addend_value = 0; |
| 2790 | p->output_section = NULL; |
| 2791 | p->output_vma = 0; |
| 2792 | } |
| 2793 | |
| 2794 | void |
| 2795 | lang_add_assignment (exp) |
| 2796 | etree_type * exp; |
| 2797 | { |
| 2798 | lang_assignment_statement_type *new = new_stat (lang_assignment_statement, |
| 2799 | stat_ptr); |
| 2800 | |
| 2801 | new->exp = exp; |
| 2802 | } |
| 2803 | |
| 2804 | void |
| 2805 | lang_add_attribute (attribute) |
| 2806 | enum statement_enum attribute; |
| 2807 | { |
| 2808 | new_statement (attribute, sizeof (lang_statement_union_type), stat_ptr); |
| 2809 | } |
| 2810 | |
| 2811 | void |
| 2812 | lang_startup (name) |
| 2813 | CONST char *name; |
| 2814 | { |
| 2815 | if (startup_file != (char *) NULL) |
| 2816 | { |
| 2817 | einfo ("%P%Fmultiple STARTUP files\n"); |
| 2818 | } |
| 2819 | first_file->filename = name; |
| 2820 | first_file->local_sym_name = name; |
| 2821 | first_file->real = true; |
| 2822 | |
| 2823 | startup_file = name; |
| 2824 | } |
| 2825 | |
| 2826 | void |
| 2827 | lang_float (maybe) |
| 2828 | boolean maybe; |
| 2829 | { |
| 2830 | lang_float_flag = maybe; |
| 2831 | } |
| 2832 | |
| 2833 | void |
| 2834 | lang_leave_output_section_statement (fill, memspec) |
| 2835 | bfd_vma fill; |
| 2836 | CONST char *memspec; |
| 2837 | { |
| 2838 | current_section->fill = fill; |
| 2839 | current_section->region = lang_memory_region_lookup (memspec); |
| 2840 | stat_ptr = &statement_list; |
| 2841 | } |
| 2842 | |
| 2843 | /* |
| 2844 | Create an absolute symbol with the given name with the value of the |
| 2845 | address of first byte of the section named. |
| 2846 | |
| 2847 | If the symbol already exists, then do nothing. |
| 2848 | */ |
| 2849 | void |
| 2850 | lang_abs_symbol_at_beginning_of (secname, name) |
| 2851 | const char *secname; |
| 2852 | const char *name; |
| 2853 | { |
| 2854 | struct bfd_link_hash_entry *h; |
| 2855 | |
| 2856 | h = bfd_link_hash_lookup (link_info.hash, name, true, true, true); |
| 2857 | if (h == (struct bfd_link_hash_entry *) NULL) |
| 2858 | einfo ("%P%F: bfd_link_hash_lookup failed: %E\n"); |
| 2859 | |
| 2860 | if (h->type == bfd_link_hash_new |
| 2861 | || h->type == bfd_link_hash_undefined) |
| 2862 | { |
| 2863 | asection *sec; |
| 2864 | |
| 2865 | h->type = bfd_link_hash_defined; |
| 2866 | |
| 2867 | sec = bfd_get_section_by_name (output_bfd, secname); |
| 2868 | if (sec == (asection *) NULL) |
| 2869 | h->u.def.value = 0; |
| 2870 | else |
| 2871 | h->u.def.value = bfd_get_section_vma (output_bfd, sec); |
| 2872 | |
| 2873 | h->u.def.section = bfd_abs_section_ptr; |
| 2874 | } |
| 2875 | } |
| 2876 | |
| 2877 | /* |
| 2878 | Create an absolute symbol with the given name with the value of the |
| 2879 | address of the first byte after the end of the section named. |
| 2880 | |
| 2881 | If the symbol already exists, then do nothing. |
| 2882 | */ |
| 2883 | void |
| 2884 | lang_abs_symbol_at_end_of (secname, name) |
| 2885 | const char *secname; |
| 2886 | const char *name; |
| 2887 | { |
| 2888 | struct bfd_link_hash_entry *h; |
| 2889 | |
| 2890 | h = bfd_link_hash_lookup (link_info.hash, name, true, true, true); |
| 2891 | if (h == (struct bfd_link_hash_entry *) NULL) |
| 2892 | einfo ("%P%F: bfd_link_hash_lookup failed: %E\n"); |
| 2893 | |
| 2894 | if (h->type == bfd_link_hash_new |
| 2895 | || h->type == bfd_link_hash_undefined) |
| 2896 | { |
| 2897 | asection *sec; |
| 2898 | |
| 2899 | h->type = bfd_link_hash_defined; |
| 2900 | |
| 2901 | sec = bfd_get_section_by_name (output_bfd, secname); |
| 2902 | if (sec == (asection *) NULL) |
| 2903 | h->u.def.value = 0; |
| 2904 | else |
| 2905 | h->u.def.value = (bfd_get_section_vma (output_bfd, sec) |
| 2906 | + bfd_section_size (output_bfd, sec)); |
| 2907 | |
| 2908 | h->u.def.section = bfd_abs_section_ptr; |
| 2909 | } |
| 2910 | } |
| 2911 | |
| 2912 | void |
| 2913 | lang_statement_append (list, element, field) |
| 2914 | lang_statement_list_type * list; |
| 2915 | lang_statement_union_type * element; |
| 2916 | lang_statement_union_type ** field; |
| 2917 | { |
| 2918 | *(list->tail) = element; |
| 2919 | list->tail = field; |
| 2920 | } |
| 2921 | |
| 2922 | /* Set the output format type. -oformat overrides scripts. */ |
| 2923 | |
| 2924 | void |
| 2925 | lang_add_output_format (format, big, little, from_script) |
| 2926 | const char *format; |
| 2927 | const char *big; |
| 2928 | const char *little; |
| 2929 | int from_script; |
| 2930 | { |
| 2931 | if (output_target == NULL || !from_script) |
| 2932 | { |
| 2933 | if (command_line.endian == ENDIAN_BIG |
| 2934 | && big != NULL) |
| 2935 | format = big; |
| 2936 | else if (command_line.endian == ENDIAN_LITTLE |
| 2937 | && little != NULL) |
| 2938 | format = little; |
| 2939 | |
| 2940 | output_target = format; |
| 2941 | } |
| 2942 | } |
| 2943 | |
| 2944 | /* Enter a group. This creates a new lang_group_statement, and sets |
| 2945 | stat_ptr to build new statements within the group. */ |
| 2946 | |
| 2947 | void |
| 2948 | lang_enter_group () |
| 2949 | { |
| 2950 | lang_group_statement_type *g; |
| 2951 | |
| 2952 | g = new_stat (lang_group_statement, stat_ptr); |
| 2953 | lang_list_init (&g->children); |
| 2954 | stat_ptr = &g->children; |
| 2955 | } |
| 2956 | |
| 2957 | /* Leave a group. This just resets stat_ptr to start writing to the |
| 2958 | regular list of statements again. Note that this will not work if |
| 2959 | groups can occur inside anything else which can adjust stat_ptr, |
| 2960 | but currently they can't. */ |
| 2961 | |
| 2962 | void |
| 2963 | lang_leave_group () |
| 2964 | { |
| 2965 | stat_ptr = &statement_list; |
| 2966 | } |