| 1 | /* vms.c -- BFD back-end for VAX (openVMS/VAX) and |
| 2 | EVAX (openVMS/Alpha) files. |
| 3 | Copyright 1996, 97, 98, 99, 2000 Free Software Foundation, Inc. |
| 4 | |
| 5 | Written by Klaus K"ampf (kkaempf@rmi.de) |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | #include "bfd.h" |
| 22 | #include "sysdep.h" |
| 23 | #include "bfdlink.h" |
| 24 | #include "libbfd.h" |
| 25 | |
| 26 | #include "vms.h" |
| 27 | |
| 28 | static boolean vms_initialize PARAMS ((bfd *)); |
| 29 | static unsigned int priv_section_count; |
| 30 | static boolean fill_section_ptr PARAMS ((struct bfd_hash_entry *, PTR)); |
| 31 | static boolean vms_fixup_sections PARAMS ((bfd *)); |
| 32 | static boolean copy_symbols PARAMS ((struct bfd_hash_entry *, PTR)); |
| 33 | static bfd_reloc_status_type reloc_nil |
| 34 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| 35 | static const struct bfd_target *vms_object_p PARAMS ((bfd *abfd)); |
| 36 | static const struct bfd_target *vms_archive_p PARAMS ((bfd *abfd)); |
| 37 | static boolean vms_mkobject PARAMS ((bfd *abfd)); |
| 38 | static boolean vms_write_object_contents PARAMS ((bfd *abfd)); |
| 39 | static boolean vms_close_and_cleanup PARAMS ((bfd *abfd)); |
| 40 | static boolean vms_bfd_free_cached_info PARAMS ((bfd *abfd)); |
| 41 | static boolean vms_new_section_hook PARAMS ((bfd *abfd, asection *section)); |
| 42 | static boolean vms_get_section_contents |
| 43 | PARAMS ((bfd *abfd, asection *section, PTR x1, file_ptr x2, |
| 44 | bfd_size_type x3)); |
| 45 | static boolean vms_get_section_contents_in_window |
| 46 | PARAMS ((bfd *abfd, asection *section, bfd_window *w, file_ptr offset, |
| 47 | bfd_size_type count)); |
| 48 | static boolean vms_bfd_copy_private_bfd_data PARAMS ((bfd *src, bfd *dest)); |
| 49 | static boolean vms_bfd_copy_private_section_data |
| 50 | PARAMS ((bfd *srcbfd, asection *srcsec, bfd *dstbfd, asection *dstsec)); |
| 51 | static boolean vms_bfd_copy_private_symbol_data |
| 52 | PARAMS ((bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym)); |
| 53 | static boolean vms_bfd_print_private_bfd_data |
| 54 | PARAMS ((bfd *abfd, void *file)); |
| 55 | static char *vms_core_file_failing_command PARAMS ((bfd *abfd)); |
| 56 | static int vms_core_file_failing_signal PARAMS ((bfd *abfd)); |
| 57 | static boolean vms_core_file_matches_executable_p |
| 58 | PARAMS ((bfd *abfd, bfd *bbfd)); |
| 59 | static boolean vms_slurp_armap PARAMS ((bfd *abfd)); |
| 60 | static boolean vms_slurp_extended_name_table PARAMS ((bfd *abfd)); |
| 61 | static boolean vms_construct_extended_name_table |
| 62 | PARAMS ((bfd *abfd, char **tabloc, bfd_size_type *tablen, |
| 63 | const char **name)); |
| 64 | static void vms_truncate_arname |
| 65 | PARAMS ((bfd *abfd, CONST char *pathname, char *arhdr)); |
| 66 | static boolean vms_write_armap |
| 67 | PARAMS ((bfd *arch, unsigned int elength, struct orl *map, |
| 68 | unsigned int orl_count, int stridx)); |
| 69 | static PTR vms_read_ar_hdr PARAMS ((bfd *abfd)); |
| 70 | static bfd *vms_get_elt_at_index PARAMS ((bfd *abfd, symindex index)); |
| 71 | static bfd *vms_openr_next_archived_file PARAMS ((bfd *arch, bfd *prev)); |
| 72 | static boolean vms_update_armap_timestamp PARAMS ((bfd *abfd)); |
| 73 | static int vms_generic_stat_arch_elt PARAMS ((bfd *abfd, struct stat *stat)); |
| 74 | static long vms_get_symtab_upper_bound PARAMS ((bfd *abfd)); |
| 75 | static long vms_get_symtab PARAMS ((bfd *abfd, asymbol **symbols)); |
| 76 | static void vms_print_symbol |
| 77 | PARAMS ((bfd *abfd, PTR file, asymbol *symbol, bfd_print_symbol_type how)); |
| 78 | static void vms_get_symbol_info |
| 79 | PARAMS ((bfd *abfd, asymbol *symbol, symbol_info *ret)); |
| 80 | static boolean vms_bfd_is_local_label_name PARAMS ((bfd *abfd, const char *)); |
| 81 | static alent *vms_get_lineno PARAMS ((bfd *abfd, asymbol *symbol)); |
| 82 | static boolean vms_find_nearest_line |
| 83 | PARAMS ((bfd *abfd, asection *section, asymbol **symbols, bfd_vma offset, |
| 84 | const char **file, const char **func, unsigned int *line)); |
| 85 | static asymbol *vms_bfd_make_debug_symbol |
| 86 | PARAMS ((bfd *abfd, void *ptr, unsigned long size)); |
| 87 | static long vms_read_minisymbols |
| 88 | PARAMS ((bfd *abfd, boolean dynamic, PTR *minisymsp, unsigned int *sizep)); |
| 89 | static asymbol *vms_minisymbol_to_symbol |
| 90 | PARAMS ((bfd *abfd, boolean dynamic, const PTR minisym, asymbol *sym)); |
| 91 | static long vms_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect)); |
| 92 | static long vms_canonicalize_reloc |
| 93 | PARAMS ((bfd *abfd, asection *srcsec, arelent **location, |
| 94 | asymbol **symbols)); |
| 95 | static const struct reloc_howto_struct *vms_bfd_reloc_type_lookup |
| 96 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); |
| 97 | static boolean vms_set_arch_mach |
| 98 | PARAMS ((bfd *abfd, enum bfd_architecture arch, unsigned long mach)); |
| 99 | static boolean vms_set_section_contents |
| 100 | PARAMS ((bfd *abfd, asection *section, PTR location, file_ptr offset, |
| 101 | bfd_size_type count)); |
| 102 | static int vms_sizeof_headers PARAMS ((bfd *abfd, boolean reloc)); |
| 103 | static bfd_byte *vms_bfd_get_relocated_section_contents |
| 104 | PARAMS ((bfd *abfd, struct bfd_link_info *link_info, |
| 105 | struct bfd_link_order *link_order, bfd_byte *data, |
| 106 | boolean relocateable, asymbol **symbols)); |
| 107 | static boolean vms_bfd_relax_section |
| 108 | PARAMS ((bfd *abfd, asection *section, struct bfd_link_info *link_info, |
| 109 | boolean *again)); |
| 110 | static boolean vms_bfd_gc_sections |
| 111 | PARAMS ((bfd *abfd, struct bfd_link_info *link_info)); |
| 112 | static struct bfd_link_hash_table *vms_bfd_link_hash_table_create |
| 113 | PARAMS ((bfd *abfd)); |
| 114 | static boolean vms_bfd_link_add_symbols |
| 115 | PARAMS ((bfd *abfd, struct bfd_link_info *link_info)); |
| 116 | static boolean vms_bfd_final_link |
| 117 | PARAMS ((bfd *abfd, struct bfd_link_info *link_info)); |
| 118 | static boolean vms_bfd_link_split_section |
| 119 | PARAMS ((bfd *abfd, asection *section)); |
| 120 | static long vms_get_dynamic_symtab_upper_bound PARAMS ((bfd *abfd)); |
| 121 | static long vms_canonicalize_dynamic_symtab |
| 122 | PARAMS ((bfd *abfd, asymbol **symbols)); |
| 123 | static long vms_get_dynamic_reloc_upper_bound PARAMS ((bfd *abfd)); |
| 124 | static long vms_canonicalize_dynamic_reloc |
| 125 | PARAMS ((bfd *abfd, arelent **arel, asymbol **symbols)); |
| 126 | static boolean vms_bfd_merge_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd)); |
| 127 | static boolean vms_bfd_set_private_flags PARAMS ((bfd *abfd, flagword flags)); |
| 128 | |
| 129 | #define vms_make_empty_symbol _bfd_vms_make_empty_symbol |
| 130 | \f |
| 131 | /*===========================================================================*/ |
| 132 | |
| 133 | const bfd_target vms_alpha_vec = |
| 134 | { |
| 135 | "vms-alpha", /* name */ |
| 136 | bfd_target_evax_flavour, |
| 137 | BFD_ENDIAN_LITTLE, /* data byte order is little */ |
| 138 | BFD_ENDIAN_LITTLE, /* header byte order is little */ |
| 139 | |
| 140 | (HAS_RELOC | HAS_SYMS |
| 141 | | WP_TEXT | D_PAGED), /* object flags */ |
| 142 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
| 143 | | SEC_READONLY | SEC_CODE | SEC_DATA |
| 144 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY), /* sect flags */ |
| 145 | 0, /* symbol_leading_char */ |
| 146 | ' ', /* ar_pad_char */ |
| 147 | 15, /* ar_max_namelen */ |
| 148 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| 149 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| 150 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, |
| 151 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| 152 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| 153 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, |
| 154 | |
| 155 | {_bfd_dummy_target, vms_object_p, /* bfd_check_format */ |
| 156 | vms_archive_p, _bfd_dummy_target}, |
| 157 | {bfd_false, vms_mkobject, /* bfd_set_format */ |
| 158 | _bfd_generic_mkarchive, bfd_false}, |
| 159 | {bfd_false, vms_write_object_contents, /* bfd_write_contents */ |
| 160 | _bfd_write_archive_contents, bfd_false}, |
| 161 | |
| 162 | BFD_JUMP_TABLE_GENERIC (vms), |
| 163 | BFD_JUMP_TABLE_COPY (vms), |
| 164 | BFD_JUMP_TABLE_CORE (vms), |
| 165 | BFD_JUMP_TABLE_ARCHIVE (vms), |
| 166 | BFD_JUMP_TABLE_SYMBOLS (vms), |
| 167 | BFD_JUMP_TABLE_RELOCS (vms), |
| 168 | BFD_JUMP_TABLE_WRITE (vms), |
| 169 | BFD_JUMP_TABLE_LINK (vms), |
| 170 | BFD_JUMP_TABLE_DYNAMIC (vms), |
| 171 | |
| 172 | NULL, |
| 173 | |
| 174 | (PTR) 0 |
| 175 | }; |
| 176 | |
| 177 | const bfd_target vms_vax_vec = |
| 178 | { |
| 179 | "vms-vax", /* name */ |
| 180 | bfd_target_ovax_flavour, |
| 181 | BFD_ENDIAN_LITTLE, /* data byte order is little */ |
| 182 | BFD_ENDIAN_LITTLE, /* header byte order is little */ |
| 183 | |
| 184 | (HAS_RELOC | HAS_SYMS /* object flags */ |
| 185 | | WP_TEXT | D_PAGED |
| 186 | | HAS_LINENO | HAS_DEBUG | HAS_LOCALS), |
| 187 | |
| 188 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
| 189 | | SEC_READONLY | SEC_CODE | SEC_DATA |
| 190 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY), /* sect flags */ |
| 191 | 0, /* symbol_leading_char */ |
| 192 | ' ', /* ar_pad_char */ |
| 193 | 15, /* ar_max_namelen */ |
| 194 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| 195 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| 196 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ |
| 197 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| 198 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| 199 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ |
| 200 | |
| 201 | {_bfd_dummy_target, vms_object_p, /* bfd_check_format */ |
| 202 | vms_archive_p, _bfd_dummy_target}, |
| 203 | {bfd_false, vms_mkobject, /* bfd_set_format */ |
| 204 | _bfd_generic_mkarchive, bfd_false}, |
| 205 | {bfd_false, vms_write_object_contents, /* bfd_write_contents */ |
| 206 | _bfd_write_archive_contents, bfd_false}, |
| 207 | |
| 208 | BFD_JUMP_TABLE_GENERIC (vms), |
| 209 | BFD_JUMP_TABLE_COPY (vms), |
| 210 | BFD_JUMP_TABLE_CORE (vms), |
| 211 | BFD_JUMP_TABLE_ARCHIVE (vms), |
| 212 | BFD_JUMP_TABLE_SYMBOLS (vms), |
| 213 | BFD_JUMP_TABLE_RELOCS (vms), |
| 214 | BFD_JUMP_TABLE_WRITE (vms), |
| 215 | BFD_JUMP_TABLE_LINK (vms), |
| 216 | BFD_JUMP_TABLE_DYNAMIC (vms), |
| 217 | |
| 218 | NULL, |
| 219 | |
| 220 | (PTR) 0 |
| 221 | }; |
| 222 | \f |
| 223 | /*===========================================================================*/ |
| 224 | |
| 225 | /* Initialize private data */ |
| 226 | |
| 227 | static boolean |
| 228 | vms_initialize (abfd) |
| 229 | bfd *abfd; |
| 230 | { |
| 231 | int i; |
| 232 | |
| 233 | if (abfd->tdata.any != 0) |
| 234 | return true; |
| 235 | |
| 236 | bfd_set_start_address (abfd, (bfd_vma)-1); |
| 237 | |
| 238 | abfd->tdata.any = ((struct vms_private_data_struct*) |
| 239 | bfd_malloc (sizeof (struct vms_private_data_struct))); |
| 240 | if (abfd->tdata.any == 0) |
| 241 | return false; |
| 242 | |
| 243 | #ifdef __ALPHA |
| 244 | PRIV(is_vax) = 0; |
| 245 | #else |
| 246 | PRIV(is_vax) = 1; |
| 247 | #endif |
| 248 | PRIV(vms_buf) = 0; |
| 249 | PRIV(buf_size) = 0; |
| 250 | PRIV(rec_length) = 0; |
| 251 | PRIV(file_format) = FF_UNKNOWN; |
| 252 | PRIV(fixup_done) = false; |
| 253 | PRIV(sections) = NULL; |
| 254 | |
| 255 | PRIV(stack) = ((struct stack_struct *) |
| 256 | bfd_malloc (sizeof (struct stack_struct) * STACKSIZE)); |
| 257 | if (PRIV(stack) == 0) |
| 258 | { |
| 259 | vms_init_no_mem1: |
| 260 | free (abfd->tdata.any); |
| 261 | abfd->tdata.any = 0; |
| 262 | return false; |
| 263 | } |
| 264 | PRIV(stackptr) = 0; |
| 265 | |
| 266 | PRIV(vms_symbol_table) = ((struct bfd_hash_table *) |
| 267 | bfd_malloc (sizeof (struct bfd_hash_table))); |
| 268 | if (PRIV(vms_symbol_table) == 0) |
| 269 | { |
| 270 | vms_init_no_mem2: |
| 271 | free (PRIV(stack)); |
| 272 | PRIV(stack) = 0; |
| 273 | goto vms_init_no_mem1; |
| 274 | } |
| 275 | |
| 276 | if (!bfd_hash_table_init (PRIV(vms_symbol_table), _bfd_vms_hash_newfunc)) |
| 277 | return false; |
| 278 | |
| 279 | PRIV(location_stack) = ((struct location_struct *) |
| 280 | bfd_malloc (sizeof (struct location_struct) |
| 281 | * LOCATION_SAVE_SIZE)); |
| 282 | if (PRIV(location_stack) == 0) |
| 283 | { |
| 284 | vms_init_no_mem3: |
| 285 | free (PRIV(vms_symbol_table)); |
| 286 | PRIV(vms_symbol_table) = 0; |
| 287 | goto vms_init_no_mem2; |
| 288 | } |
| 289 | |
| 290 | for (i = 0; i < VMS_SECTION_COUNT; i++) |
| 291 | PRIV(vms_section_table)[i] = NULL; |
| 292 | |
| 293 | PRIV(output_buf) = (unsigned char *) malloc (MAX_OUTREC_SIZE); |
| 294 | if (PRIV(output_buf) == 0) |
| 295 | { |
| 296 | free (PRIV(location_stack)); |
| 297 | PRIV(location_stack) = 0; |
| 298 | goto vms_init_no_mem3; |
| 299 | } |
| 300 | PRIV(push_level) = 0; |
| 301 | PRIV(pushed_size) = 0; |
| 302 | PRIV(length_pos) = 2; |
| 303 | PRIV(output_size) = 0; |
| 304 | PRIV(output_alignment) = 1; |
| 305 | |
| 306 | return true; |
| 307 | } |
| 308 | |
| 309 | /* Fill symbol->section with section ptr |
| 310 | symbol->section is filled with the section index for defined symbols |
| 311 | during reading the GSD/EGSD section. But we need the pointer to the |
| 312 | bfd section later. |
| 313 | |
| 314 | It has the correct value for referenced (undefined section) symbols |
| 315 | |
| 316 | called from bfd_hash_traverse in vms_fixup_sections */ |
| 317 | |
| 318 | static boolean |
| 319 | fill_section_ptr (entry, sections) |
| 320 | struct bfd_hash_entry *entry; |
| 321 | PTR sections; |
| 322 | { |
| 323 | asection *sec; |
| 324 | asymbol *sym; |
| 325 | |
| 326 | sym = ((vms_symbol_entry *)entry)->symbol; |
| 327 | sec = sym->section; |
| 328 | |
| 329 | #if VMS_DEBUG |
| 330 | vms_debug (6, "fill_section_ptr: sym %p, sec %p\n", sym, sec); |
| 331 | #endif |
| 332 | |
| 333 | /* fill forward references (these contain section number, not section ptr). */ |
| 334 | |
| 335 | if ((unsigned int) sec < priv_section_count) |
| 336 | { |
| 337 | sec = ((vms_symbol_entry *)entry)->symbol->section = |
| 338 | ((asection **)sections)[(int)sec]; |
| 339 | } |
| 340 | |
| 341 | if (strcmp (sym->name, sec->name) == 0) |
| 342 | sym->flags |= BSF_SECTION_SYM; |
| 343 | |
| 344 | return true; |
| 345 | } |
| 346 | |
| 347 | /* Fixup sections |
| 348 | set up all pointers and arrays, counters and sizes are fixed now |
| 349 | |
| 350 | we build a private sections vector for easy access since sections |
| 351 | are always referenced by an index number. |
| 352 | |
| 353 | alloc PRIV(sections) according to abfd->section_count |
| 354 | copy abfd->sections to PRIV(sections) */ |
| 355 | |
| 356 | static boolean |
| 357 | vms_fixup_sections (abfd) |
| 358 | bfd *abfd; |
| 359 | { |
| 360 | if (PRIV(fixup_done)) |
| 361 | return true; |
| 362 | |
| 363 | /* |
| 364 | * traverse symbol table and fill in all section pointers |
| 365 | */ |
| 366 | |
| 367 | /* can't provide section count as argument to fill_section_ptr(). */ |
| 368 | priv_section_count = PRIV(section_count); |
| 369 | bfd_hash_traverse (PRIV(vms_symbol_table), fill_section_ptr, |
| 370 | (PTR) (PRIV(sections))); |
| 371 | |
| 372 | PRIV(fixup_done) = true; |
| 373 | |
| 374 | return true; |
| 375 | } |
| 376 | |
| 377 | /*===========================================================================*/ |
| 378 | |
| 379 | /* Check the format for a file being read. |
| 380 | Return a (bfd_target *) if it's an object file or zero if not. */ |
| 381 | |
| 382 | static const struct bfd_target * |
| 383 | vms_object_p (abfd) |
| 384 | bfd *abfd; |
| 385 | { |
| 386 | int err = 0; |
| 387 | int prev_type; |
| 388 | const struct bfd_target *target_vector = 0; |
| 389 | const bfd_arch_info_type *arch = 0; |
| 390 | |
| 391 | #if VMS_DEBUG |
| 392 | vms_debug (1, "vms_object_p(%p)\n", abfd); |
| 393 | #endif |
| 394 | |
| 395 | if (!vms_initialize (abfd)) |
| 396 | { |
| 397 | fprintf (stderr, "vms_initialize () failed !!\n"); |
| 398 | return 0; |
| 399 | } |
| 400 | |
| 401 | if (bfd_seek (abfd, 0L, SEEK_SET)) |
| 402 | { |
| 403 | bfd_set_error (bfd_error_file_truncated); |
| 404 | return 0; |
| 405 | } |
| 406 | |
| 407 | prev_type = -1; |
| 408 | |
| 409 | do |
| 410 | { |
| 411 | #if VMS_DEBUG |
| 412 | vms_debug (7, "reading at %08lx\n", bfd_tell(abfd)); |
| 413 | #endif |
| 414 | if (_bfd_vms_next_record (abfd) < 0) |
| 415 | { |
| 416 | #if VMS_DEBUG |
| 417 | vms_debug (2, "next_record failed\n"); |
| 418 | #endif |
| 419 | bfd_set_error (bfd_error_wrong_format); |
| 420 | return 0; |
| 421 | } |
| 422 | |
| 423 | if ((prev_type == EOBJ_S_C_EGSD) |
| 424 | && (PRIV(rec_type) != EOBJ_S_C_EGSD)) |
| 425 | { |
| 426 | if (vms_fixup_sections (abfd) == false) |
| 427 | { |
| 428 | #if VMS_DEBUG |
| 429 | vms_debug (2, "vms_fixup_sections failed\n"); |
| 430 | #endif |
| 431 | bfd_set_error (bfd_error_wrong_format); |
| 432 | return 0; |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | prev_type = PRIV(rec_type); |
| 437 | |
| 438 | if (target_vector == 0) |
| 439 | { |
| 440 | if (prev_type <= OBJ_S_C_MAXRECTYP) |
| 441 | target_vector = &vms_vax_vec; |
| 442 | else |
| 443 | target_vector = &vms_alpha_vec; |
| 444 | } |
| 445 | |
| 446 | switch (prev_type) |
| 447 | { |
| 448 | case OBJ_S_C_HDR: |
| 449 | case EOBJ_S_C_EMH: |
| 450 | err = _bfd_vms_slurp_hdr (abfd, prev_type); |
| 451 | break; |
| 452 | case OBJ_S_C_EOM: |
| 453 | case OBJ_S_C_EOMW: |
| 454 | case EOBJ_S_C_EEOM: |
| 455 | err = _bfd_vms_slurp_eom (abfd, prev_type); |
| 456 | break; |
| 457 | case OBJ_S_C_GSD: |
| 458 | case EOBJ_S_C_EGSD: |
| 459 | err = _bfd_vms_slurp_gsd (abfd, prev_type); |
| 460 | break; |
| 461 | case OBJ_S_C_TIR: |
| 462 | case EOBJ_S_C_ETIR: |
| 463 | err = _bfd_vms_slurp_tir (abfd, prev_type); |
| 464 | break; |
| 465 | case OBJ_S_C_DBG: |
| 466 | case EOBJ_S_C_EDBG: |
| 467 | err = _bfd_vms_slurp_dbg (abfd, prev_type); |
| 468 | break; |
| 469 | case OBJ_S_C_TBT: |
| 470 | case EOBJ_S_C_ETBT: |
| 471 | err = _bfd_vms_slurp_tbt (abfd, prev_type); |
| 472 | break; |
| 473 | case OBJ_S_C_LNK: |
| 474 | err = _bfd_vms_slurp_lnk (abfd, prev_type); |
| 475 | break; |
| 476 | default: |
| 477 | err = -1; |
| 478 | } |
| 479 | if (err != 0) |
| 480 | { |
| 481 | #if VMS_DEBUG |
| 482 | vms_debug (2, "slurp type %d failed with %d\n", prev_type, err); |
| 483 | #endif |
| 484 | bfd_set_error (bfd_error_wrong_format); |
| 485 | return 0; |
| 486 | } |
| 487 | } |
| 488 | while ((prev_type != EOBJ_S_C_EEOM) && (prev_type != OBJ_S_C_EOM) && (prev_type != OBJ_S_C_EOMW)); |
| 489 | |
| 490 | if (target_vector == &vms_vax_vec) |
| 491 | { |
| 492 | if (vms_fixup_sections (abfd) == false) |
| 493 | { |
| 494 | #if VMS_DEBUG |
| 495 | vms_debug (2, "vms_fixup_sections failed\n"); |
| 496 | #endif |
| 497 | bfd_set_error (bfd_error_wrong_format); |
| 498 | return 0; |
| 499 | } |
| 500 | |
| 501 | /* set arch_info to vax */ |
| 502 | |
| 503 | arch = bfd_scan_arch ("vax"); |
| 504 | PRIV (is_vax) = 1; |
| 505 | #if VMS_DEBUG |
| 506 | vms_debug (2, "arch is vax\n"); |
| 507 | #endif |
| 508 | } |
| 509 | else if (target_vector == &vms_alpha_vec) |
| 510 | { |
| 511 | /* set arch_info to alpha */ |
| 512 | |
| 513 | arch = bfd_scan_arch ("alpha"); |
| 514 | PRIV (is_vax) = 0; |
| 515 | #if VMS_DEBUG |
| 516 | vms_debug (2, "arch is alpha\n"); |
| 517 | #endif |
| 518 | } |
| 519 | |
| 520 | if (arch == 0) |
| 521 | { |
| 522 | #if VMS_DEBUG |
| 523 | vms_debug (2, "arch not found\n"); |
| 524 | #endif |
| 525 | bfd_set_error (bfd_error_wrong_format); |
| 526 | return 0; |
| 527 | } |
| 528 | abfd->arch_info = arch; |
| 529 | |
| 530 | return target_vector; |
| 531 | } |
| 532 | |
| 533 | /* Check the format for a file being read. |
| 534 | Return a (bfd_target *) if it's an archive file or zero. */ |
| 535 | |
| 536 | static const struct bfd_target * |
| 537 | vms_archive_p (abfd) |
| 538 | bfd *abfd ATTRIBUTE_UNUSED; |
| 539 | { |
| 540 | #if VMS_DEBUG |
| 541 | vms_debug (1, "vms_archive_p(%p)\n", abfd); |
| 542 | #endif |
| 543 | |
| 544 | return 0; |
| 545 | } |
| 546 | |
| 547 | /* Set the format of a file being written. */ |
| 548 | |
| 549 | static boolean |
| 550 | vms_mkobject (abfd) |
| 551 | bfd *abfd; |
| 552 | { |
| 553 | #if VMS_DEBUG |
| 554 | vms_debug (1, "vms_mkobject(%p)\n", abfd); |
| 555 | #endif |
| 556 | |
| 557 | if (!vms_initialize (abfd)) |
| 558 | { |
| 559 | fprintf (stderr, "vms_initialize () failed !!\n"); |
| 560 | return 0; |
| 561 | } |
| 562 | |
| 563 | { |
| 564 | #ifdef __VAX |
| 565 | const bfd_arch_info_type *arch = bfd_scan_arch ("vax"); |
| 566 | #else |
| 567 | const bfd_arch_info_type *arch = bfd_scan_arch ("alpha"); |
| 568 | #endif |
| 569 | if (arch == 0) |
| 570 | { |
| 571 | bfd_set_error(bfd_error_wrong_format); |
| 572 | return 0; |
| 573 | } |
| 574 | abfd->arch_info = arch; |
| 575 | } |
| 576 | |
| 577 | return true; |
| 578 | } |
| 579 | |
| 580 | /* Write cached information into a file being written, at bfd_close. */ |
| 581 | |
| 582 | static boolean |
| 583 | vms_write_object_contents (abfd) |
| 584 | bfd *abfd; |
| 585 | { |
| 586 | #if VMS_DEBUG |
| 587 | vms_debug (1, "vms_write_object_contents(%p)\n", abfd); |
| 588 | #endif |
| 589 | |
| 590 | if (abfd->section_count > 0) /* we have sections */ |
| 591 | { |
| 592 | if (PRIV(is_vax)) |
| 593 | { |
| 594 | if (_bfd_vms_write_hdr (abfd, OBJ_S_C_HDR) != 0) |
| 595 | return false; |
| 596 | if (_bfd_vms_write_gsd (abfd, OBJ_S_C_GSD) != 0) |
| 597 | return false; |
| 598 | if (_bfd_vms_write_tir (abfd, OBJ_S_C_TIR) != 0) |
| 599 | return false; |
| 600 | if (_bfd_vms_write_tbt (abfd, OBJ_S_C_TBT) != 0) |
| 601 | return false; |
| 602 | if (_bfd_vms_write_dbg (abfd, OBJ_S_C_DBG) != 0) |
| 603 | return false; |
| 604 | if (abfd->section_count > 255) |
| 605 | { |
| 606 | if (_bfd_vms_write_eom (abfd, OBJ_S_C_EOMW) != 0) |
| 607 | return false; |
| 608 | } |
| 609 | else |
| 610 | { |
| 611 | if (_bfd_vms_write_eom (abfd, OBJ_S_C_EOM) != 0) |
| 612 | return false; |
| 613 | } |
| 614 | } |
| 615 | else |
| 616 | { |
| 617 | if (_bfd_vms_write_hdr (abfd, EOBJ_S_C_EMH) != 0) |
| 618 | return false; |
| 619 | if (_bfd_vms_write_gsd (abfd, EOBJ_S_C_EGSD) != 0) |
| 620 | return false; |
| 621 | if (_bfd_vms_write_tir (abfd, EOBJ_S_C_ETIR) != 0) |
| 622 | return false; |
| 623 | if (_bfd_vms_write_tbt (abfd, EOBJ_S_C_ETBT) != 0) |
| 624 | return false; |
| 625 | if (_bfd_vms_write_dbg (abfd, EOBJ_S_C_EDBG) != 0) |
| 626 | return false; |
| 627 | if (_bfd_vms_write_eom (abfd, EOBJ_S_C_EEOM) != 0) |
| 628 | return false; |
| 629 | } |
| 630 | } |
| 631 | return true; |
| 632 | } |
| 633 | |
| 634 | /*-- 4.1, generic -----------------------------------------------------------*/ |
| 635 | |
| 636 | /* Called when the BFD is being closed to do any necessary cleanup. */ |
| 637 | |
| 638 | static boolean |
| 639 | vms_close_and_cleanup (abfd) |
| 640 | bfd *abfd; |
| 641 | { |
| 642 | asection *sec; |
| 643 | vms_section *es, *es1; |
| 644 | int i; |
| 645 | |
| 646 | #if VMS_DEBUG |
| 647 | vms_debug (1, "vms_close_and_cleanup(%p)\n", abfd); |
| 648 | #endif |
| 649 | if (abfd == 0) |
| 650 | return true; |
| 651 | |
| 652 | if (PRIV(vms_buf) != NULL) |
| 653 | { |
| 654 | free (PRIV(vms_buf)); |
| 655 | PRIV(vms_buf) = NULL; |
| 656 | } |
| 657 | PRIV(buf_size) = 0; |
| 658 | |
| 659 | if (PRIV(output_buf) != 0) |
| 660 | { |
| 661 | free (PRIV(output_buf)); |
| 662 | PRIV(output_buf) = 0; |
| 663 | } |
| 664 | |
| 665 | sec = abfd->sections; |
| 666 | while (sec != NULL) |
| 667 | { |
| 668 | if (sec->contents) |
| 669 | free (sec->contents); |
| 670 | sec = sec->next; |
| 671 | } |
| 672 | |
| 673 | if (PRIV(sections) != NULL) |
| 674 | { |
| 675 | free (PRIV(sections)); |
| 676 | PRIV(sections) = NULL; |
| 677 | } |
| 678 | |
| 679 | if (PRIV(vms_symbol_table)) |
| 680 | { |
| 681 | bfd_hash_table_free (PRIV(vms_symbol_table)); |
| 682 | PRIV(vms_symbol_table) = 0; |
| 683 | } |
| 684 | |
| 685 | if (PRIV(stack)) |
| 686 | { |
| 687 | free (PRIV(stack)); |
| 688 | PRIV(stack) = 0; |
| 689 | } |
| 690 | |
| 691 | if (PRIV(location_stack)) |
| 692 | { |
| 693 | free (PRIV(location_stack)); |
| 694 | PRIV(location_stack) = 0; |
| 695 | } |
| 696 | |
| 697 | for (i = 0; i < VMS_SECTION_COUNT; i++) |
| 698 | { |
| 699 | es = PRIV(vms_section_table)[i]; |
| 700 | while (es != NULL) |
| 701 | { |
| 702 | es1 = es->next; |
| 703 | free (es); |
| 704 | es = es1; |
| 705 | } |
| 706 | PRIV(vms_section_table)[i] = NULL; |
| 707 | } |
| 708 | |
| 709 | free (abfd->tdata.any); |
| 710 | abfd->tdata.any = NULL; |
| 711 | |
| 712 | return true; |
| 713 | } |
| 714 | |
| 715 | /* Ask the BFD to free all cached information. */ |
| 716 | static boolean |
| 717 | vms_bfd_free_cached_info (abfd) |
| 718 | bfd *abfd ATTRIBUTE_UNUSED; |
| 719 | { |
| 720 | #if VMS_DEBUG |
| 721 | vms_debug (1, "vms_bfd_free_cached_info(%p)\n", abfd); |
| 722 | #endif |
| 723 | return true; |
| 724 | } |
| 725 | |
| 726 | /* Called when a new section is created. */ |
| 727 | |
| 728 | static boolean |
| 729 | vms_new_section_hook (abfd, section) |
| 730 | bfd *abfd; |
| 731 | asection *section; |
| 732 | { |
| 733 | #if VMS_DEBUG |
| 734 | vms_debug (1, "vms_new_section_hook (%p, [%d]%s), count %d\n", abfd, section->index, section->name, abfd->section_count); |
| 735 | #endif |
| 736 | bfd_set_section_alignment(abfd, section, 4); |
| 737 | |
| 738 | if (abfd->section_count > PRIV(section_count)) |
| 739 | { |
| 740 | PRIV(sections) = ((asection **) |
| 741 | bfd_realloc (PRIV(sections), abfd->section_count * sizeof (asection *))); |
| 742 | if (PRIV(sections) == 0) |
| 743 | return false; |
| 744 | PRIV(section_count) = abfd->section_count; |
| 745 | } |
| 746 | #if VMS_DEBUG |
| 747 | vms_debug (6, "section_count: %d\n", PRIV(section_count)); |
| 748 | #endif |
| 749 | PRIV(sections)[section->index] = section; |
| 750 | #if VMS_DEBUG |
| 751 | vms_debug (7, "%d: %s\n", section->index, section->name); |
| 752 | #endif |
| 753 | |
| 754 | return true; |
| 755 | } |
| 756 | |
| 757 | /* Read the contents of a section. |
| 758 | buf points to a buffer of buf_size bytes to be filled with |
| 759 | section data (starting at offset into section) */ |
| 760 | |
| 761 | static boolean |
| 762 | vms_get_section_contents (abfd, section, buf, offset, buf_size) |
| 763 | bfd *abfd ATTRIBUTE_UNUSED; |
| 764 | asection *section ATTRIBUTE_UNUSED; |
| 765 | PTR buf ATTRIBUTE_UNUSED; |
| 766 | file_ptr offset ATTRIBUTE_UNUSED; |
| 767 | bfd_size_type buf_size ATTRIBUTE_UNUSED; |
| 768 | { |
| 769 | #if VMS_DEBUG |
| 770 | vms_debug (1, "vms_get_section_contents(%p, %s, %p, off %ld, size %d)\n", |
| 771 | abfd, section->name, buf, offset, (int)buf_size); |
| 772 | #endif |
| 773 | |
| 774 | /* shouldn't be called, since all sections are IN_MEMORY */ |
| 775 | |
| 776 | return false; |
| 777 | } |
| 778 | |
| 779 | /* Read the contents of a section. |
| 780 | buf points to a buffer of buf_size bytes to be filled with |
| 781 | section data (starting at offset into section) */ |
| 782 | |
| 783 | static boolean |
| 784 | vms_get_section_contents_in_window (abfd, section, w, offset, count) |
| 785 | bfd *abfd ATTRIBUTE_UNUSED; |
| 786 | asection *section ATTRIBUTE_UNUSED; |
| 787 | bfd_window *w ATTRIBUTE_UNUSED; |
| 788 | file_ptr offset ATTRIBUTE_UNUSED; |
| 789 | bfd_size_type count ATTRIBUTE_UNUSED; |
| 790 | { |
| 791 | #if VMS_DEBUG |
| 792 | vms_debug (1, "vms_get_section_contents_in_window(%p, %s, %p, off %ld, count %d)\n", |
| 793 | abfd, section->name, w, offset, (int)count); |
| 794 | #endif |
| 795 | |
| 796 | /* shouldn't be called, since all sections are IN_MEMORY */ |
| 797 | |
| 798 | return false; |
| 799 | } |
| 800 | |
| 801 | /*-- Part 4.2, copy private data --------------------------------------------*/ |
| 802 | |
| 803 | /* Called to copy BFD general private data from one object file |
| 804 | to another. */ |
| 805 | |
| 806 | static boolean |
| 807 | vms_bfd_copy_private_bfd_data (src, dest) |
| 808 | bfd *src ATTRIBUTE_UNUSED; |
| 809 | bfd *dest ATTRIBUTE_UNUSED; |
| 810 | { |
| 811 | #if VMS_DEBUG |
| 812 | vms_debug (1, "vms_bfd_copy_private_bfd_data(%p, %p)\n", src, dest); |
| 813 | #endif |
| 814 | return true; |
| 815 | } |
| 816 | |
| 817 | /* Merge private BFD information from the BFD @var{ibfd} to the |
| 818 | the output file BFD @var{obfd} when linking. Return <<true>> |
| 819 | on success, <<false>> on error. Possible error returns are: |
| 820 | |
| 821 | o <<bfd_error_no_memory>> - |
| 822 | Not enough memory exists to create private data for @var{obfd}. */ |
| 823 | |
| 824 | static boolean |
| 825 | vms_bfd_merge_private_bfd_data (ibfd, obfd) |
| 826 | bfd *ibfd ATTRIBUTE_UNUSED; |
| 827 | bfd *obfd ATTRIBUTE_UNUSED; |
| 828 | { |
| 829 | #if VMS_DEBUG |
| 830 | vms_debug (1,"vms_bfd_merge_private_bfd_data(%p, %p)\n", ibfd, obfd); |
| 831 | #endif |
| 832 | return true; |
| 833 | } |
| 834 | |
| 835 | /* Set private BFD flag information in the BFD @var{abfd}. |
| 836 | Return <<true>> on success, <<false>> on error. Possible error |
| 837 | returns are: |
| 838 | |
| 839 | o <<bfd_error_no_memory>> - |
| 840 | Not enough memory exists to create private data for @var{obfd}. */ |
| 841 | |
| 842 | static boolean |
| 843 | vms_bfd_set_private_flags (abfd, flags) |
| 844 | bfd *abfd ATTRIBUTE_UNUSED; |
| 845 | flagword flags ATTRIBUTE_UNUSED; |
| 846 | { |
| 847 | #if VMS_DEBUG |
| 848 | vms_debug (1,"vms_bfd_set_private_flags(%p, %lx)\n", abfd, (long)flags); |
| 849 | #endif |
| 850 | return true; |
| 851 | } |
| 852 | |
| 853 | /* Called to copy BFD private section data from one object file |
| 854 | to another. */ |
| 855 | |
| 856 | static boolean |
| 857 | vms_bfd_copy_private_section_data (srcbfd, srcsec, dstbfd, dstsec) |
| 858 | bfd *srcbfd ATTRIBUTE_UNUSED; |
| 859 | asection *srcsec ATTRIBUTE_UNUSED; |
| 860 | bfd *dstbfd ATTRIBUTE_UNUSED; |
| 861 | asection *dstsec ATTRIBUTE_UNUSED; |
| 862 | { |
| 863 | #if VMS_DEBUG |
| 864 | vms_debug (1, "vms_bfd_copy_private_section_data(%p, %s, %p, %s)\n", |
| 865 | srcbfd, srcsec->name, dstbfd, dstsec->name); |
| 866 | #endif |
| 867 | return true; |
| 868 | } |
| 869 | |
| 870 | /* Called to copy BFD private symbol data from one object file |
| 871 | to another. */ |
| 872 | |
| 873 | static boolean |
| 874 | vms_bfd_copy_private_symbol_data (ibfd, isym, obfd, osym) |
| 875 | bfd *ibfd ATTRIBUTE_UNUSED; |
| 876 | asymbol *isym ATTRIBUTE_UNUSED; |
| 877 | bfd *obfd ATTRIBUTE_UNUSED; |
| 878 | asymbol *osym ATTRIBUTE_UNUSED; |
| 879 | { |
| 880 | #if VMS_DEBUG |
| 881 | vms_debug (1, "vms_bfd_copy_private_symbol_data(%p, %s, %p, %s)\n", |
| 882 | ibfd, isym->name, obfd, osym->name); |
| 883 | #endif |
| 884 | return true; |
| 885 | } |
| 886 | |
| 887 | /*-- Part 4.3, core file ----------------------------------------------------*/ |
| 888 | |
| 889 | /* Return a read-only string explaining which program was running |
| 890 | when it failed and produced the core file abfd. */ |
| 891 | |
| 892 | static char * |
| 893 | vms_core_file_failing_command (abfd) |
| 894 | bfd *abfd ATTRIBUTE_UNUSED; |
| 895 | { |
| 896 | #if VMS_DEBUG |
| 897 | vms_debug (1, "vms_core_file_failing_command(%p)\n", abfd); |
| 898 | #endif |
| 899 | return 0; |
| 900 | } |
| 901 | |
| 902 | /* Returns the signal number which caused the core dump which |
| 903 | generated the file the BFD abfd is attached to. */ |
| 904 | |
| 905 | static int |
| 906 | vms_core_file_failing_signal (abfd) |
| 907 | bfd *abfd ATTRIBUTE_UNUSED; |
| 908 | { |
| 909 | #if VMS_DEBUG |
| 910 | vms_debug (1, "vms_core_file_failing_signal(%p)\n", abfd); |
| 911 | #endif |
| 912 | return 0; |
| 913 | } |
| 914 | |
| 915 | /* Return true if the core file attached to core_bfd was generated |
| 916 | by a run of the executable file attached to exec_bfd, false otherwise. */ |
| 917 | |
| 918 | static boolean |
| 919 | vms_core_file_matches_executable_p (abfd, bbfd) |
| 920 | bfd *abfd ATTRIBUTE_UNUSED; |
| 921 | bfd *bbfd ATTRIBUTE_UNUSED; |
| 922 | { |
| 923 | #if VMS_DEBUG |
| 924 | vms_debug (1, "vms_core_file_matches_executable_p(%p, %p)\n", abfd, bbfd); |
| 925 | #endif |
| 926 | return false; |
| 927 | } |
| 928 | |
| 929 | /*-- Part 4.4, archive ------------------------------------------------------*/ |
| 930 | |
| 931 | /* ??? do something with an archive map. |
| 932 | Return false on error, true otherwise. */ |
| 933 | |
| 934 | static boolean |
| 935 | vms_slurp_armap (abfd) |
| 936 | bfd *abfd ATTRIBUTE_UNUSED; |
| 937 | { |
| 938 | #if VMS_DEBUG |
| 939 | vms_debug (1, "vms_slurp_armap(%p)\n", abfd); |
| 940 | #endif |
| 941 | return false; |
| 942 | } |
| 943 | |
| 944 | /* ??? do something with an extended name table. |
| 945 | Return false on error, true otherwise. */ |
| 946 | |
| 947 | static boolean |
| 948 | vms_slurp_extended_name_table (abfd) |
| 949 | bfd *abfd ATTRIBUTE_UNUSED; |
| 950 | { |
| 951 | #if VMS_DEBUG |
| 952 | vms_debug (1, "vms_slurp_extended_name_table(%p)\n", abfd); |
| 953 | #endif |
| 954 | return false; |
| 955 | } |
| 956 | |
| 957 | /* ??? do something with an extended name table. |
| 958 | Return false on error, true otherwise. */ |
| 959 | |
| 960 | static boolean |
| 961 | vms_construct_extended_name_table (abfd, tabloc, tablen, name) |
| 962 | bfd *abfd ATTRIBUTE_UNUSED; |
| 963 | char **tabloc ATTRIBUTE_UNUSED; |
| 964 | bfd_size_type *tablen ATTRIBUTE_UNUSED; |
| 965 | const char **name ATTRIBUTE_UNUSED; |
| 966 | { |
| 967 | #if VMS_DEBUG |
| 968 | vms_debug (1, "vms_construct_extended_name_table(%p)\n", abfd); |
| 969 | #endif |
| 970 | return false; |
| 971 | } |
| 972 | |
| 973 | /* Truncate the name of an archive to match system-dependent restrictions */ |
| 974 | |
| 975 | static void |
| 976 | vms_truncate_arname (abfd, pathname, arhdr) |
| 977 | bfd *abfd ATTRIBUTE_UNUSED; |
| 978 | CONST char *pathname ATTRIBUTE_UNUSED; |
| 979 | char *arhdr ATTRIBUTE_UNUSED; |
| 980 | { |
| 981 | #if VMS_DEBUG |
| 982 | vms_debug (1, "vms_truncate_arname(%p, %s, %s)\n", abfd, pathname, arhdr); |
| 983 | #endif |
| 984 | return; |
| 985 | } |
| 986 | |
| 987 | /* ??? write archive map */ |
| 988 | |
| 989 | static boolean |
| 990 | vms_write_armap (arch, elength, map, orl_count, stridx) |
| 991 | bfd *arch ATTRIBUTE_UNUSED; |
| 992 | unsigned int elength ATTRIBUTE_UNUSED; |
| 993 | struct orl *map ATTRIBUTE_UNUSED; |
| 994 | unsigned int orl_count ATTRIBUTE_UNUSED; |
| 995 | int stridx ATTRIBUTE_UNUSED; |
| 996 | { |
| 997 | #if VMS_DEBUG |
| 998 | vms_debug (1, "vms_write_armap(%p, %d, %p, %d %d)\n", |
| 999 | arch, elength, map, orl_count, stridx); |
| 1000 | #endif |
| 1001 | return true; |
| 1002 | } |
| 1003 | |
| 1004 | /* Read archive header ??? */ |
| 1005 | |
| 1006 | static PTR |
| 1007 | vms_read_ar_hdr (abfd) |
| 1008 | bfd * abfd ATTRIBUTE_UNUSED; |
| 1009 | { |
| 1010 | #if VMS_DEBUG |
| 1011 | vms_debug (1, "vms_read_ar_hdr(%p)\n", abfd); |
| 1012 | #endif |
| 1013 | return (PTR)0; |
| 1014 | } |
| 1015 | |
| 1016 | /* Provided a BFD, @var{archive}, containing an archive and NULL, open |
| 1017 | an input BFD on the first contained element and returns that. |
| 1018 | Subsequent calls should pass the archive and the previous return value |
| 1019 | to return a created BFD to the next contained element. |
| 1020 | NULL is returned when there are no more. */ |
| 1021 | |
| 1022 | static bfd * |
| 1023 | vms_openr_next_archived_file (arch, prev) |
| 1024 | bfd *arch ATTRIBUTE_UNUSED; |
| 1025 | bfd *prev ATTRIBUTE_UNUSED; |
| 1026 | { |
| 1027 | #if VMS_DEBUG |
| 1028 | vms_debug (1, "vms_openr_next_archived_file(%p, %p)\n", arch, prev); |
| 1029 | #endif |
| 1030 | return NULL; |
| 1031 | } |
| 1032 | |
| 1033 | /* Return the BFD which is referenced by the symbol in ABFD indexed by |
| 1034 | INDEX. INDEX should have been returned by bfd_get_next_mapent. */ |
| 1035 | |
| 1036 | static bfd * |
| 1037 | vms_get_elt_at_index (abfd, index) |
| 1038 | bfd *abfd; |
| 1039 | symindex index; |
| 1040 | { |
| 1041 | #if VMS_DEBUG |
| 1042 | vms_debug (1, "vms_get_elt_at_index(%p, %p)\n", abfd, index); |
| 1043 | #endif |
| 1044 | return _bfd_generic_get_elt_at_index(abfd, index); |
| 1045 | } |
| 1046 | |
| 1047 | /* ??? |
| 1048 | -> bfd_generic_stat_arch_elt */ |
| 1049 | |
| 1050 | static int |
| 1051 | vms_generic_stat_arch_elt (abfd, stat) |
| 1052 | bfd *abfd; |
| 1053 | struct stat *stat; |
| 1054 | { |
| 1055 | #if VMS_DEBUG |
| 1056 | vms_debug (1, "vms_generic_stat_arch_elt(%p, %p)\n", abfd, stat); |
| 1057 | #endif |
| 1058 | return bfd_generic_stat_arch_elt(abfd, stat); |
| 1059 | } |
| 1060 | |
| 1061 | /* This is a new function in bfd 2.5 */ |
| 1062 | |
| 1063 | static boolean |
| 1064 | vms_update_armap_timestamp (abfd) |
| 1065 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1066 | { |
| 1067 | #if VMS_DEBUG |
| 1068 | vms_debug (1, "vms_update_armap_timestamp(%p)\n", abfd); |
| 1069 | #endif |
| 1070 | return true; |
| 1071 | } |
| 1072 | |
| 1073 | /*-- Part 4.5, symbols --------------------------------------------------------*/ |
| 1074 | |
| 1075 | /* Return the number of bytes required to store a vector of pointers |
| 1076 | to asymbols for all the symbols in the BFD abfd, including a |
| 1077 | terminal NULL pointer. If there are no symbols in the BFD, |
| 1078 | then return 0. If an error occurs, return -1. */ |
| 1079 | |
| 1080 | static long |
| 1081 | vms_get_symtab_upper_bound (abfd) |
| 1082 | bfd *abfd; |
| 1083 | { |
| 1084 | #if VMS_DEBUG |
| 1085 | vms_debug (1, "vms_get_symtab_upper_bound(%p), %d symbols\n", abfd, PRIV(gsd_sym_count)); |
| 1086 | #endif |
| 1087 | return (PRIV(gsd_sym_count)+1) * sizeof (asymbol *); |
| 1088 | } |
| 1089 | |
| 1090 | /* Copy symbols from hash table to symbol vector |
| 1091 | |
| 1092 | called from bfd_hash_traverse in vms_get_symtab |
| 1093 | init counter to 0 if entry == 0 */ |
| 1094 | |
| 1095 | static boolean |
| 1096 | copy_symbols (entry, arg) |
| 1097 | struct bfd_hash_entry *entry; |
| 1098 | PTR arg; |
| 1099 | { |
| 1100 | bfd *abfd = (bfd *) arg; |
| 1101 | |
| 1102 | if (entry == NULL) /* init counter */ |
| 1103 | PRIV(symnum) = 0; |
| 1104 | else /* fill vector, inc counter */ |
| 1105 | PRIV(symcache)[PRIV(symnum)++] = ((vms_symbol_entry *)entry)->symbol; |
| 1106 | |
| 1107 | return true; |
| 1108 | } |
| 1109 | |
| 1110 | /* Read the symbols from the BFD abfd, and fills in the vector |
| 1111 | location with pointers to the symbols and a trailing NULL. |
| 1112 | |
| 1113 | return # of symbols read */ |
| 1114 | |
| 1115 | static long |
| 1116 | vms_get_symtab (abfd, symbols) |
| 1117 | bfd *abfd; |
| 1118 | asymbol **symbols; |
| 1119 | { |
| 1120 | #if VMS_DEBUG |
| 1121 | vms_debug (1, "vms_get_symtab(%p, <ret>)\n", abfd); |
| 1122 | #endif |
| 1123 | |
| 1124 | /* init counter */ |
| 1125 | (void)copy_symbols((struct bfd_hash_entry *)0, abfd); |
| 1126 | |
| 1127 | /* traverse table and fill symbols vector */ |
| 1128 | |
| 1129 | PRIV(symcache) = symbols; |
| 1130 | bfd_hash_traverse(PRIV(vms_symbol_table), copy_symbols, (PTR)abfd); |
| 1131 | |
| 1132 | symbols[PRIV(gsd_sym_count)] = NULL; |
| 1133 | |
| 1134 | return PRIV(gsd_sym_count); |
| 1135 | } |
| 1136 | |
| 1137 | /* Create a new asymbol structure for the BFD abfd and return a pointer |
| 1138 | to it. |
| 1139 | This routine is necessary because each back end has private information |
| 1140 | surrounding the asymbol. Building your own asymbol and pointing to it |
| 1141 | will not create the private information, and will cause problems later on. */ |
| 1142 | |
| 1143 | asymbol * |
| 1144 | _bfd_vms_make_empty_symbol (abfd) |
| 1145 | bfd *abfd; |
| 1146 | { |
| 1147 | asymbol *symbol = (asymbol *)bfd_zalloc(abfd, sizeof (asymbol)); |
| 1148 | |
| 1149 | #if VMS_DEBUG |
| 1150 | vms_debug (1, "_bfd_vms_make_empty_symbol(%p)\n", abfd); |
| 1151 | #endif |
| 1152 | |
| 1153 | if (symbol == 0) |
| 1154 | { |
| 1155 | bfd_set_error (bfd_error_no_memory); |
| 1156 | return 0; |
| 1157 | } |
| 1158 | symbol->the_bfd = abfd; |
| 1159 | |
| 1160 | return symbol; |
| 1161 | } |
| 1162 | |
| 1163 | /* Print symbol to file according to how. how is one of |
| 1164 | bfd_print_symbol_name just print the name |
| 1165 | bfd_print_symbol_more print more (???) |
| 1166 | bfd_print_symbol_all print all we know, which is not much right now :-) */ |
| 1167 | |
| 1168 | static void |
| 1169 | vms_print_symbol (abfd, file, symbol, how) |
| 1170 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1171 | PTR file; |
| 1172 | asymbol *symbol; |
| 1173 | bfd_print_symbol_type how; |
| 1174 | { |
| 1175 | #if VMS_DEBUG |
| 1176 | vms_debug (1, "vms_print_symbol(%p, %p, %p, %d)\n", abfd, file, symbol, how); |
| 1177 | #endif |
| 1178 | |
| 1179 | switch (how) |
| 1180 | { |
| 1181 | case bfd_print_symbol_name: |
| 1182 | case bfd_print_symbol_more: |
| 1183 | fprintf ((FILE *)file," %s", symbol->name); |
| 1184 | break; |
| 1185 | |
| 1186 | break; |
| 1187 | |
| 1188 | case bfd_print_symbol_all: |
| 1189 | { |
| 1190 | CONST char *section_name = symbol->section->name; |
| 1191 | |
| 1192 | bfd_print_symbol_vandf((PTR)file,symbol); |
| 1193 | |
| 1194 | fprintf ((FILE *)file," %-8s %s", section_name, symbol->name); |
| 1195 | } |
| 1196 | break; |
| 1197 | } |
| 1198 | return; |
| 1199 | } |
| 1200 | |
| 1201 | /* Return information about symbol in ret. |
| 1202 | |
| 1203 | fill type, value and name |
| 1204 | type: |
| 1205 | A absolute |
| 1206 | B bss segment symbol |
| 1207 | C common symbol |
| 1208 | D data segment symbol |
| 1209 | f filename |
| 1210 | t a static function symbol |
| 1211 | T text segment symbol |
| 1212 | U undefined |
| 1213 | - debug */ |
| 1214 | |
| 1215 | static void |
| 1216 | vms_get_symbol_info (abfd, symbol, ret) |
| 1217 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1218 | asymbol *symbol; |
| 1219 | symbol_info *ret; |
| 1220 | { |
| 1221 | asection *sec; |
| 1222 | |
| 1223 | #if VMS_DEBUG |
| 1224 | vms_debug (1, "vms_get_symbol_info(%p, %p, %p)\n", abfd, symbol, ret); |
| 1225 | #endif |
| 1226 | |
| 1227 | sec = symbol->section; |
| 1228 | |
| 1229 | if (ret == 0) |
| 1230 | return; |
| 1231 | |
| 1232 | if (bfd_is_com_section (sec)) |
| 1233 | ret->type = 'C'; |
| 1234 | else if (bfd_is_abs_section (sec)) |
| 1235 | ret->type = 'A'; |
| 1236 | else if (bfd_is_und_section (sec)) |
| 1237 | ret->type = 'U'; |
| 1238 | else if (bfd_is_ind_section (sec)) |
| 1239 | ret->type = 'I'; |
| 1240 | else if (bfd_get_section_flags (abfd, sec) & SEC_CODE) |
| 1241 | ret->type = 'T'; |
| 1242 | else if (bfd_get_section_flags (abfd, sec) & SEC_DATA) |
| 1243 | ret->type = 'D'; |
| 1244 | else if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC) |
| 1245 | ret->type = 'B'; |
| 1246 | else |
| 1247 | ret->type = '-'; |
| 1248 | |
| 1249 | if (ret->type != 'U') |
| 1250 | ret->value = symbol->value + symbol->section->vma; |
| 1251 | else |
| 1252 | ret->value = 0; |
| 1253 | ret->name = symbol->name; |
| 1254 | |
| 1255 | return; |
| 1256 | } |
| 1257 | |
| 1258 | /* Return true if the given symbol sym in the BFD abfd is |
| 1259 | a compiler generated local label, else return false. */ |
| 1260 | |
| 1261 | static boolean |
| 1262 | vms_bfd_is_local_label_name (abfd, name) |
| 1263 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1264 | const char *name; |
| 1265 | { |
| 1266 | #if VMS_DEBUG |
| 1267 | vms_debug (1, "vms_bfd_is_local_label_name(%p, %s)\n", abfd, name); |
| 1268 | #endif |
| 1269 | return name[0] == '$'; |
| 1270 | } |
| 1271 | |
| 1272 | /* Get source line number for symbol */ |
| 1273 | |
| 1274 | static alent * |
| 1275 | vms_get_lineno (abfd, symbol) |
| 1276 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1277 | asymbol *symbol ATTRIBUTE_UNUSED; |
| 1278 | { |
| 1279 | #if VMS_DEBUG |
| 1280 | vms_debug (1, "vms_get_lineno(%p, %p)\n", abfd, symbol); |
| 1281 | #endif |
| 1282 | return 0; |
| 1283 | } |
| 1284 | |
| 1285 | /* Provided a BFD, a section and an offset into the section, calculate and |
| 1286 | return the name of the source file and the line nearest to the wanted |
| 1287 | location. */ |
| 1288 | |
| 1289 | static boolean |
| 1290 | vms_find_nearest_line (abfd, section, symbols, offset, file, func, line) |
| 1291 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1292 | asection *section ATTRIBUTE_UNUSED; |
| 1293 | asymbol **symbols ATTRIBUTE_UNUSED; |
| 1294 | bfd_vma offset ATTRIBUTE_UNUSED; |
| 1295 | CONST char **file ATTRIBUTE_UNUSED; |
| 1296 | CONST char **func ATTRIBUTE_UNUSED; |
| 1297 | unsigned int *line ATTRIBUTE_UNUSED; |
| 1298 | { |
| 1299 | #if VMS_DEBUG |
| 1300 | vms_debug (1, "vms_find_nearest_line(%p, %s, %p, %ld, <ret>, <ret>, <ret>)\n", |
| 1301 | abfd, section->name, symbols, (long int)offset); |
| 1302 | #endif |
| 1303 | return false; |
| 1304 | } |
| 1305 | |
| 1306 | /* Back-door to allow format-aware applications to create debug symbols |
| 1307 | while using BFD for everything else. Currently used by the assembler |
| 1308 | when creating COFF files. */ |
| 1309 | |
| 1310 | static asymbol * |
| 1311 | vms_bfd_make_debug_symbol (abfd, ptr, size) |
| 1312 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1313 | void *ptr ATTRIBUTE_UNUSED; |
| 1314 | unsigned long size ATTRIBUTE_UNUSED; |
| 1315 | { |
| 1316 | #if VMS_DEBUG |
| 1317 | vms_debug (1, "vms_bfd_make_debug_symbol(%p, %p, %ld)\n", abfd, ptr, size); |
| 1318 | #endif |
| 1319 | return 0; |
| 1320 | } |
| 1321 | |
| 1322 | /* Read minisymbols. For minisymbols, we use the unmodified a.out |
| 1323 | symbols. The minisymbol_to_symbol function translates these into |
| 1324 | BFD asymbol structures. */ |
| 1325 | |
| 1326 | static long |
| 1327 | vms_read_minisymbols (abfd, dynamic, minisymsp, sizep) |
| 1328 | bfd *abfd; |
| 1329 | boolean dynamic; |
| 1330 | PTR *minisymsp; |
| 1331 | unsigned int *sizep; |
| 1332 | { |
| 1333 | #if VMS_DEBUG |
| 1334 | vms_debug (1, "vms_read_minisymbols(%p, %d, %p, %d)\n", abfd, dynamic, minisymsp, *sizep); |
| 1335 | #endif |
| 1336 | return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep); |
| 1337 | } |
| 1338 | |
| 1339 | /* Convert a minisymbol to a BFD asymbol. A minisymbol is just an |
| 1340 | unmodified a.out symbol. The SYM argument is a structure returned |
| 1341 | by bfd_make_empty_symbol, which we fill in here. */ |
| 1342 | |
| 1343 | static asymbol * |
| 1344 | vms_minisymbol_to_symbol (abfd, dynamic, minisym, sym) |
| 1345 | bfd *abfd; |
| 1346 | boolean dynamic; |
| 1347 | const PTR minisym; |
| 1348 | asymbol *sym; |
| 1349 | { |
| 1350 | #if VMS_DEBUG |
| 1351 | vms_debug (1, "vms_minisymbol_to_symbol(%p, %d, %p, %p)\n", abfd, dynamic, minisym, sym); |
| 1352 | #endif |
| 1353 | return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym); |
| 1354 | } |
| 1355 | |
| 1356 | /*-- Part 4.6, relocations --------------------------------------------------*/ |
| 1357 | |
| 1358 | /* Return the number of bytes required to store the relocation information |
| 1359 | associated with section sect attached to bfd abfd. |
| 1360 | If an error occurs, return -1. */ |
| 1361 | |
| 1362 | static long |
| 1363 | vms_get_reloc_upper_bound (abfd, section) |
| 1364 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1365 | asection *section ATTRIBUTE_UNUSED; |
| 1366 | { |
| 1367 | #if VMS_DEBUG |
| 1368 | vms_debug (1, "vms_get_reloc_upper_bound(%p, %s)\n", abfd, section->name); |
| 1369 | #endif |
| 1370 | return -1L; |
| 1371 | } |
| 1372 | |
| 1373 | /* Call the back end associated with the open BFD abfd and translate the |
| 1374 | external form of the relocation information attached to sec into the |
| 1375 | internal canonical form. Place the table into memory at loc, which has |
| 1376 | been preallocated, usually by a call to bfd_get_reloc_upper_bound. |
| 1377 | Returns the number of relocs, or -1 on error. */ |
| 1378 | |
| 1379 | static long |
| 1380 | vms_canonicalize_reloc (abfd, section, location, symbols) |
| 1381 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1382 | asection *section ATTRIBUTE_UNUSED; |
| 1383 | arelent **location ATTRIBUTE_UNUSED; |
| 1384 | asymbol **symbols ATTRIBUTE_UNUSED; |
| 1385 | { |
| 1386 | #if VMS_DEBUG |
| 1387 | vms_debug (1, "vms_canonicalize_reloc(%p, %s, <ret>, <ret>)\n", abfd, section->name); |
| 1388 | #endif |
| 1389 | return false; |
| 1390 | } |
| 1391 | |
| 1392 | /*---------------------------------------------------------------------------*/ |
| 1393 | /* this is just copied from ecoff-alpha, needs to be fixed probably */ |
| 1394 | |
| 1395 | /* How to process the various reloc types. */ |
| 1396 | |
| 1397 | static bfd_reloc_status_type |
| 1398 | reloc_nil (abfd, reloc, sym, data, sec, output_bfd, error_message) |
| 1399 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1400 | arelent *reloc ATTRIBUTE_UNUSED; |
| 1401 | asymbol *sym ATTRIBUTE_UNUSED; |
| 1402 | PTR data ATTRIBUTE_UNUSED; |
| 1403 | asection *sec ATTRIBUTE_UNUSED; |
| 1404 | bfd *output_bfd ATTRIBUTE_UNUSED; |
| 1405 | char **error_message ATTRIBUTE_UNUSED; |
| 1406 | { |
| 1407 | #if VMS_DEBUG |
| 1408 | vms_debug (1, "reloc_nil(abfd %p, output_bfd %p)\n", abfd, output_bfd); |
| 1409 | vms_debug (2, "In section %s, symbol %s\n", |
| 1410 | sec->name, sym->name); |
| 1411 | vms_debug (2, "reloc sym %s, addr %08lx, addend %08lx, reloc is a %s\n", |
| 1412 | reloc->sym_ptr_ptr[0]->name, |
| 1413 | (unsigned long)reloc->address, |
| 1414 | (unsigned long)reloc->addend, reloc->howto->name); |
| 1415 | vms_debug (2, "data at %p\n", data); |
| 1416 | /* _bfd_hexdump (2, data, bfd_get_reloc_size(reloc->howto),0); */ |
| 1417 | #endif |
| 1418 | |
| 1419 | return bfd_reloc_ok; |
| 1420 | } |
| 1421 | |
| 1422 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value |
| 1423 | from smaller values. Start with zero, widen, *then* decrement. */ |
| 1424 | #define MINUS_ONE (((bfd_vma)0) - 1) |
| 1425 | |
| 1426 | static reloc_howto_type alpha_howto_table[] = |
| 1427 | { |
| 1428 | HOWTO (ALPHA_R_IGNORE, /* type */ |
| 1429 | 0, /* rightshift */ |
| 1430 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1431 | 8, /* bitsize */ |
| 1432 | true, /* pc_relative */ |
| 1433 | 0, /* bitpos */ |
| 1434 | complain_overflow_dont, /* complain_on_overflow */ |
| 1435 | reloc_nil, /* special_function */ |
| 1436 | "IGNORE", /* name */ |
| 1437 | true, /* partial_inplace */ |
| 1438 | 0, /* src_mask */ |
| 1439 | 0, /* dst_mask */ |
| 1440 | true), /* pcrel_offset */ |
| 1441 | |
| 1442 | /* A 64 bit reference to a symbol. */ |
| 1443 | HOWTO (ALPHA_R_REFQUAD, /* type */ |
| 1444 | 0, /* rightshift */ |
| 1445 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1446 | 64, /* bitsize */ |
| 1447 | false, /* pc_relative */ |
| 1448 | 0, /* bitpos */ |
| 1449 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1450 | reloc_nil, /* special_function */ |
| 1451 | "REFQUAD", /* name */ |
| 1452 | true, /* partial_inplace */ |
| 1453 | MINUS_ONE, /* src_mask */ |
| 1454 | MINUS_ONE, /* dst_mask */ |
| 1455 | false), /* pcrel_offset */ |
| 1456 | |
| 1457 | /* A 21 bit branch. The native assembler generates these for |
| 1458 | branches within the text segment, and also fills in the PC |
| 1459 | relative offset in the instruction. */ |
| 1460 | HOWTO (ALPHA_R_BRADDR, /* type */ |
| 1461 | 2, /* rightshift */ |
| 1462 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1463 | 21, /* bitsize */ |
| 1464 | true, /* pc_relative */ |
| 1465 | 0, /* bitpos */ |
| 1466 | complain_overflow_signed, /* complain_on_overflow */ |
| 1467 | reloc_nil, /* special_function */ |
| 1468 | "BRADDR", /* name */ |
| 1469 | true, /* partial_inplace */ |
| 1470 | 0x1fffff, /* src_mask */ |
| 1471 | 0x1fffff, /* dst_mask */ |
| 1472 | false), /* pcrel_offset */ |
| 1473 | |
| 1474 | /* A hint for a jump to a register. */ |
| 1475 | HOWTO (ALPHA_R_HINT, /* type */ |
| 1476 | 2, /* rightshift */ |
| 1477 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1478 | 14, /* bitsize */ |
| 1479 | true, /* pc_relative */ |
| 1480 | 0, /* bitpos */ |
| 1481 | complain_overflow_dont, /* complain_on_overflow */ |
| 1482 | reloc_nil, /* special_function */ |
| 1483 | "HINT", /* name */ |
| 1484 | true, /* partial_inplace */ |
| 1485 | 0x3fff, /* src_mask */ |
| 1486 | 0x3fff, /* dst_mask */ |
| 1487 | false), /* pcrel_offset */ |
| 1488 | |
| 1489 | /* 16 bit PC relative offset. */ |
| 1490 | HOWTO (ALPHA_R_SREL16, /* type */ |
| 1491 | 0, /* rightshift */ |
| 1492 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1493 | 16, /* bitsize */ |
| 1494 | true, /* pc_relative */ |
| 1495 | 0, /* bitpos */ |
| 1496 | complain_overflow_signed, /* complain_on_overflow */ |
| 1497 | reloc_nil, /* special_function */ |
| 1498 | "SREL16", /* name */ |
| 1499 | true, /* partial_inplace */ |
| 1500 | 0xffff, /* src_mask */ |
| 1501 | 0xffff, /* dst_mask */ |
| 1502 | false), /* pcrel_offset */ |
| 1503 | |
| 1504 | /* 32 bit PC relative offset. */ |
| 1505 | HOWTO (ALPHA_R_SREL32, /* type */ |
| 1506 | 0, /* rightshift */ |
| 1507 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1508 | 32, /* bitsize */ |
| 1509 | true, /* pc_relative */ |
| 1510 | 0, /* bitpos */ |
| 1511 | complain_overflow_signed, /* complain_on_overflow */ |
| 1512 | reloc_nil, /* special_function */ |
| 1513 | "SREL32", /* name */ |
| 1514 | true, /* partial_inplace */ |
| 1515 | 0xffffffff, /* src_mask */ |
| 1516 | 0xffffffff, /* dst_mask */ |
| 1517 | false), /* pcrel_offset */ |
| 1518 | |
| 1519 | /* A 64 bit PC relative offset. */ |
| 1520 | HOWTO (ALPHA_R_SREL64, /* type */ |
| 1521 | 0, /* rightshift */ |
| 1522 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1523 | 64, /* bitsize */ |
| 1524 | true, /* pc_relative */ |
| 1525 | 0, /* bitpos */ |
| 1526 | complain_overflow_signed, /* complain_on_overflow */ |
| 1527 | reloc_nil, /* special_function */ |
| 1528 | "SREL64", /* name */ |
| 1529 | true, /* partial_inplace */ |
| 1530 | MINUS_ONE, /* src_mask */ |
| 1531 | MINUS_ONE, /* dst_mask */ |
| 1532 | false), /* pcrel_offset */ |
| 1533 | |
| 1534 | /* Push a value on the reloc evaluation stack. */ |
| 1535 | HOWTO (ALPHA_R_OP_PUSH, /* type */ |
| 1536 | 0, /* rightshift */ |
| 1537 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1538 | 0, /* bitsize */ |
| 1539 | false, /* pc_relative */ |
| 1540 | 0, /* bitpos */ |
| 1541 | complain_overflow_dont, /* complain_on_overflow */ |
| 1542 | reloc_nil, /* special_function */ |
| 1543 | "OP_PUSH", /* name */ |
| 1544 | false, /* partial_inplace */ |
| 1545 | 0, /* src_mask */ |
| 1546 | 0, /* dst_mask */ |
| 1547 | false), /* pcrel_offset */ |
| 1548 | |
| 1549 | /* Store the value from the stack at the given address. Store it in |
| 1550 | a bitfield of size r_size starting at bit position r_offset. */ |
| 1551 | HOWTO (ALPHA_R_OP_STORE, /* type */ |
| 1552 | 0, /* rightshift */ |
| 1553 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1554 | 64, /* bitsize */ |
| 1555 | false, /* pc_relative */ |
| 1556 | 0, /* bitpos */ |
| 1557 | complain_overflow_dont, /* complain_on_overflow */ |
| 1558 | reloc_nil, /* special_function */ |
| 1559 | "OP_STORE", /* name */ |
| 1560 | false, /* partial_inplace */ |
| 1561 | 0, /* src_mask */ |
| 1562 | MINUS_ONE, /* dst_mask */ |
| 1563 | false), /* pcrel_offset */ |
| 1564 | |
| 1565 | /* Subtract the reloc address from the value on the top of the |
| 1566 | relocation stack. */ |
| 1567 | HOWTO (ALPHA_R_OP_PSUB, /* type */ |
| 1568 | 0, /* rightshift */ |
| 1569 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1570 | 0, /* bitsize */ |
| 1571 | false, /* pc_relative */ |
| 1572 | 0, /* bitpos */ |
| 1573 | complain_overflow_dont, /* complain_on_overflow */ |
| 1574 | reloc_nil, /* special_function */ |
| 1575 | "OP_PSUB", /* name */ |
| 1576 | false, /* partial_inplace */ |
| 1577 | 0, /* src_mask */ |
| 1578 | 0, /* dst_mask */ |
| 1579 | false), /* pcrel_offset */ |
| 1580 | |
| 1581 | /* Shift the value on the top of the relocation stack right by the |
| 1582 | given value. */ |
| 1583 | HOWTO (ALPHA_R_OP_PRSHIFT, /* type */ |
| 1584 | 0, /* rightshift */ |
| 1585 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1586 | 0, /* bitsize */ |
| 1587 | false, /* pc_relative */ |
| 1588 | 0, /* bitpos */ |
| 1589 | complain_overflow_dont, /* complain_on_overflow */ |
| 1590 | reloc_nil, /* special_function */ |
| 1591 | "OP_PRSHIFT", /* name */ |
| 1592 | false, /* partial_inplace */ |
| 1593 | 0, /* src_mask */ |
| 1594 | 0, /* dst_mask */ |
| 1595 | false), /* pcrel_offset */ |
| 1596 | |
| 1597 | /* Hack. Linkage is done by linker. */ |
| 1598 | HOWTO (ALPHA_R_LINKAGE, /* type */ |
| 1599 | 0, /* rightshift */ |
| 1600 | 8, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1601 | 256, /* bitsize */ |
| 1602 | false, /* pc_relative */ |
| 1603 | 0, /* bitpos */ |
| 1604 | complain_overflow_dont, /* complain_on_overflow */ |
| 1605 | reloc_nil, /* special_function */ |
| 1606 | "LINKAGE", /* name */ |
| 1607 | false, /* partial_inplace */ |
| 1608 | 0, /* src_mask */ |
| 1609 | 0, /* dst_mask */ |
| 1610 | false), /* pcrel_offset */ |
| 1611 | |
| 1612 | /* A 32 bit reference to a symbol. */ |
| 1613 | HOWTO (ALPHA_R_REFLONG, /* type */ |
| 1614 | 0, /* rightshift */ |
| 1615 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1616 | 32, /* bitsize */ |
| 1617 | false, /* pc_relative */ |
| 1618 | 0, /* bitpos */ |
| 1619 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1620 | reloc_nil, /* special_function */ |
| 1621 | "REFLONG", /* name */ |
| 1622 | true, /* partial_inplace */ |
| 1623 | 0xffffffff, /* src_mask */ |
| 1624 | 0xffffffff, /* dst_mask */ |
| 1625 | false), /* pcrel_offset */ |
| 1626 | |
| 1627 | /* A 64 bit reference to a procedure, written as 32 bit value. */ |
| 1628 | HOWTO (ALPHA_R_CODEADDR, /* type */ |
| 1629 | 0, /* rightshift */ |
| 1630 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1631 | 64, /* bitsize */ |
| 1632 | false, /* pc_relative */ |
| 1633 | 0, /* bitpos */ |
| 1634 | complain_overflow_signed,/* complain_on_overflow */ |
| 1635 | reloc_nil, /* special_function */ |
| 1636 | "CODEADDR", /* name */ |
| 1637 | false, /* partial_inplace */ |
| 1638 | 0xffffffff, /* src_mask */ |
| 1639 | 0xffffffff, /* dst_mask */ |
| 1640 | false), /* pcrel_offset */ |
| 1641 | |
| 1642 | }; |
| 1643 | |
| 1644 | /* Return a pointer to a howto structure which, when invoked, will perform |
| 1645 | the relocation code on data from the architecture noted. */ |
| 1646 | |
| 1647 | static const struct reloc_howto_struct * |
| 1648 | vms_bfd_reloc_type_lookup (abfd, code) |
| 1649 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1650 | bfd_reloc_code_real_type code; |
| 1651 | { |
| 1652 | int alpha_type; |
| 1653 | |
| 1654 | #if VMS_DEBUG |
| 1655 | vms_debug (1, "vms_bfd_reloc_type_lookup(%p, %d)\t", abfd, code); |
| 1656 | #endif |
| 1657 | |
| 1658 | switch (code) |
| 1659 | { |
| 1660 | case BFD_RELOC_16: alpha_type = ALPHA_R_SREL16; break; |
| 1661 | case BFD_RELOC_32: alpha_type = ALPHA_R_REFLONG; break; |
| 1662 | case BFD_RELOC_64: alpha_type = ALPHA_R_REFQUAD; break; |
| 1663 | case BFD_RELOC_CTOR: alpha_type = ALPHA_R_REFQUAD; break; |
| 1664 | case BFD_RELOC_23_PCREL_S2: alpha_type = ALPHA_R_BRADDR; break; |
| 1665 | case BFD_RELOC_ALPHA_HINT: alpha_type = ALPHA_R_HINT; break; |
| 1666 | case BFD_RELOC_16_PCREL: alpha_type = ALPHA_R_SREL16; break; |
| 1667 | case BFD_RELOC_32_PCREL: alpha_type = ALPHA_R_SREL32; break; |
| 1668 | case BFD_RELOC_64_PCREL: alpha_type = ALPHA_R_SREL64; break; |
| 1669 | case BFD_RELOC_ALPHA_LINKAGE: alpha_type = ALPHA_R_LINKAGE; break; |
| 1670 | case BFD_RELOC_ALPHA_CODEADDR: alpha_type = ALPHA_R_CODEADDR; break; |
| 1671 | default: |
| 1672 | (*_bfd_error_handler) ("reloc (%d) is *UNKNOWN*", code); |
| 1673 | return (const struct reloc_howto_struct *) NULL; |
| 1674 | } |
| 1675 | #if VMS_DEBUG |
| 1676 | vms_debug (2, "reloc is %s\n", alpha_howto_table[alpha_type].name); |
| 1677 | #endif |
| 1678 | return &alpha_howto_table[alpha_type]; |
| 1679 | } |
| 1680 | |
| 1681 | /*-- Part 4.7, writing an object file ---------------------------------------*/ |
| 1682 | |
| 1683 | /* Set the architecture and machine type in BFD abfd to arch and mach. |
| 1684 | Find the correct pointer to a structure and insert it into the arch_info |
| 1685 | pointer. */ |
| 1686 | |
| 1687 | static boolean |
| 1688 | vms_set_arch_mach (abfd, arch, mach) |
| 1689 | bfd *abfd; |
| 1690 | enum bfd_architecture arch ATTRIBUTE_UNUSED; |
| 1691 | unsigned long mach ATTRIBUTE_UNUSED; |
| 1692 | { |
| 1693 | #if VMS_DEBUG |
| 1694 | vms_debug (1, "vms_set_arch_mach(%p, %d, %ld)\n", abfd, arch, mach); |
| 1695 | #endif |
| 1696 | abfd->arch_info = bfd_scan_arch("alpha"); |
| 1697 | |
| 1698 | return true; |
| 1699 | } |
| 1700 | |
| 1701 | /* Sets the contents of the section section in BFD abfd to the data starting |
| 1702 | in memory at data. The data is written to the output section starting at |
| 1703 | offset offset for count bytes. |
| 1704 | |
| 1705 | Normally true is returned, else false. Possible error returns are: |
| 1706 | o bfd_error_no_contents - The output section does not have the |
| 1707 | SEC_HAS_CONTENTS attribute, so nothing can be written to it. |
| 1708 | o and some more too */ |
| 1709 | |
| 1710 | static boolean |
| 1711 | vms_set_section_contents (abfd, section, location, offset, count) |
| 1712 | bfd *abfd; |
| 1713 | asection *section; |
| 1714 | PTR location; |
| 1715 | file_ptr offset; |
| 1716 | bfd_size_type count; |
| 1717 | { |
| 1718 | #if VMS_DEBUG |
| 1719 | vms_debug (1, "vms_set_section_contents(%p, sec %s, loc %p, off %ld, count %d)\n", |
| 1720 | abfd, section->name, location, (long int)offset, (int)count); |
| 1721 | vms_debug (2, "secraw %d, seccooked %d\n", (int)section->_raw_size, (int)section->_cooked_size); |
| 1722 | #endif |
| 1723 | return _bfd_save_vms_section(abfd, section, location, offset, count); |
| 1724 | } |
| 1725 | |
| 1726 | /*-- Part 4.8, linker -------------------------------------------------------*/ |
| 1727 | |
| 1728 | /* Get the size of the section headers. */ |
| 1729 | |
| 1730 | static int |
| 1731 | vms_sizeof_headers (abfd, reloc) |
| 1732 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1733 | boolean reloc ATTRIBUTE_UNUSED; |
| 1734 | { |
| 1735 | #if VMS_DEBUG |
| 1736 | vms_debug (1, "vms_sizeof_headers(%p, %s)\n", abfd, (reloc)?"True":"False"); |
| 1737 | #endif |
| 1738 | return 0; |
| 1739 | } |
| 1740 | |
| 1741 | /* Provides default handling of relocation effort for back ends |
| 1742 | which can't be bothered to do it efficiently. */ |
| 1743 | |
| 1744 | static bfd_byte * |
| 1745 | vms_bfd_get_relocated_section_contents (abfd, link_info, link_order, data, |
| 1746 | relocateable, symbols) |
| 1747 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1748 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; |
| 1749 | struct bfd_link_order *link_order ATTRIBUTE_UNUSED; |
| 1750 | bfd_byte *data ATTRIBUTE_UNUSED; |
| 1751 | boolean relocateable ATTRIBUTE_UNUSED; |
| 1752 | asymbol **symbols ATTRIBUTE_UNUSED; |
| 1753 | { |
| 1754 | #if VMS_DEBUG |
| 1755 | vms_debug (1, "vms_bfd_get_relocated_section_contents(%p, %p, %p, %p, %s, %p)\n", |
| 1756 | abfd, link_info, link_order, data, (relocateable)?"True":"False", symbols); |
| 1757 | #endif |
| 1758 | return 0; |
| 1759 | } |
| 1760 | |
| 1761 | /* ??? */ |
| 1762 | |
| 1763 | static boolean |
| 1764 | vms_bfd_relax_section (abfd, section, link_info, again) |
| 1765 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1766 | asection *section ATTRIBUTE_UNUSED; |
| 1767 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; |
| 1768 | boolean *again ATTRIBUTE_UNUSED; |
| 1769 | { |
| 1770 | #if VMS_DEBUG |
| 1771 | vms_debug (1, "vms_bfd_relax_section(%p, %s, %p, <ret>)\n", |
| 1772 | abfd, section->name, link_info); |
| 1773 | #endif |
| 1774 | return true; |
| 1775 | } |
| 1776 | |
| 1777 | static boolean |
| 1778 | vms_bfd_gc_sections (abfd, link_info) |
| 1779 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1780 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; |
| 1781 | { |
| 1782 | #if VMS_DEBUG |
| 1783 | vms_debug (1, "vms_bfd_gc_sections(%p, %p)\n", abfd, link_info); |
| 1784 | #endif |
| 1785 | return true; |
| 1786 | } |
| 1787 | |
| 1788 | /* Create a hash table for the linker. Different backends store |
| 1789 | different information in this table. */ |
| 1790 | |
| 1791 | static struct bfd_link_hash_table * |
| 1792 | vms_bfd_link_hash_table_create (abfd) |
| 1793 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1794 | { |
| 1795 | #if VMS_DEBUG |
| 1796 | vms_debug (1, "vms_bfd_link_hash_table_create(%p)\n", abfd); |
| 1797 | #endif |
| 1798 | return 0; |
| 1799 | } |
| 1800 | |
| 1801 | /* Add symbols from this object file into the hash table. */ |
| 1802 | |
| 1803 | static boolean |
| 1804 | vms_bfd_link_add_symbols (abfd, link_info) |
| 1805 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1806 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; |
| 1807 | { |
| 1808 | #if VMS_DEBUG |
| 1809 | vms_debug (1, "vms_bfd_link_add_symbols(%p, %p)\n", abfd, link_info); |
| 1810 | #endif |
| 1811 | return false; |
| 1812 | } |
| 1813 | |
| 1814 | /* Do a link based on the link_order structures attached to each |
| 1815 | section of the BFD. */ |
| 1816 | |
| 1817 | static boolean |
| 1818 | vms_bfd_final_link (abfd, link_info) |
| 1819 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1820 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; |
| 1821 | { |
| 1822 | #if VMS_DEBUG |
| 1823 | vms_debug (1, "vms_bfd_final_link(%p, %p)\n", abfd, link_info); |
| 1824 | #endif |
| 1825 | return true; |
| 1826 | } |
| 1827 | |
| 1828 | /* Should this section be split up into smaller pieces during linking. */ |
| 1829 | |
| 1830 | static boolean |
| 1831 | vms_bfd_link_split_section (abfd, section) |
| 1832 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1833 | asection *section ATTRIBUTE_UNUSED; |
| 1834 | { |
| 1835 | #if VMS_DEBUG |
| 1836 | vms_debug (1, "vms_bfd_link_split_section(%p, %s)\n", abfd, section->name); |
| 1837 | #endif |
| 1838 | return false; |
| 1839 | } |
| 1840 | |
| 1841 | /*-- Part 4.9, dynamic symbols and relocations ------------------------------*/ |
| 1842 | |
| 1843 | /* Get the amount of memory required to hold the dynamic symbols. */ |
| 1844 | |
| 1845 | static long |
| 1846 | vms_get_dynamic_symtab_upper_bound (abfd) |
| 1847 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1848 | { |
| 1849 | #if VMS_DEBUG |
| 1850 | vms_debug (1, "vms_get_dynamic_symtab_upper_bound(%p)\n", abfd); |
| 1851 | #endif |
| 1852 | return 0; |
| 1853 | } |
| 1854 | |
| 1855 | static boolean |
| 1856 | vms_bfd_print_private_bfd_data (abfd, file) |
| 1857 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1858 | void *file ATTRIBUTE_UNUSED; |
| 1859 | { |
| 1860 | #if VMS_DEBUG |
| 1861 | vms_debug (1, "vms_bfd_print_private_bfd_data(%p)\n", abfd); |
| 1862 | #endif |
| 1863 | return 0; |
| 1864 | } |
| 1865 | |
| 1866 | /* Read in the dynamic symbols. */ |
| 1867 | |
| 1868 | static long |
| 1869 | vms_canonicalize_dynamic_symtab (abfd, symbols) |
| 1870 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1871 | asymbol **symbols ATTRIBUTE_UNUSED; |
| 1872 | { |
| 1873 | #if VMS_DEBUG |
| 1874 | vms_debug (1, "vms_canonicalize_dynamic_symtab(%p, <ret>)\n", abfd); |
| 1875 | #endif |
| 1876 | return 0L; |
| 1877 | } |
| 1878 | |
| 1879 | /* Get the amount of memory required to hold the dynamic relocs. */ |
| 1880 | |
| 1881 | static long |
| 1882 | vms_get_dynamic_reloc_upper_bound (abfd) |
| 1883 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1884 | { |
| 1885 | #if VMS_DEBUG |
| 1886 | vms_debug (1, "vms_get_dynamic_reloc_upper_bound(%p)\n", abfd); |
| 1887 | #endif |
| 1888 | return 0L; |
| 1889 | } |
| 1890 | |
| 1891 | /* Read in the dynamic relocs. */ |
| 1892 | |
| 1893 | static long |
| 1894 | vms_canonicalize_dynamic_reloc (abfd, arel, symbols) |
| 1895 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1896 | arelent **arel ATTRIBUTE_UNUSED; |
| 1897 | asymbol **symbols ATTRIBUTE_UNUSED; |
| 1898 | { |
| 1899 | #if VMS_DEBUG |
| 1900 | vms_debug (1, "vms_canonicalize_dynamic_reloc(%p)\n", abfd); |
| 1901 | #endif |
| 1902 | return 0L; |
| 1903 | } |