| 1 | /* Generic ECOFF (Extended-COFF) routines. |
| 2 | Copyright 1990-2013 Free Software Foundation, Inc. |
| 3 | Original version by Per Bothner. |
| 4 | Full support added by Ian Lance Taylor, ian@cygnus.com. |
| 5 | |
| 6 | This file is part of BFD, the Binary File Descriptor library. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 21 | MA 02110-1301, USA. */ |
| 22 | |
| 23 | #include "sysdep.h" |
| 24 | #include "bfd.h" |
| 25 | #include "bfdlink.h" |
| 26 | #include "libbfd.h" |
| 27 | #include "aout/ar.h" |
| 28 | #include "aout/stab_gnu.h" |
| 29 | |
| 30 | /* FIXME: We need the definitions of N_SET[ADTB], but aout64.h defines |
| 31 | some other stuff which we don't want and which conflicts with stuff |
| 32 | we do want. */ |
| 33 | #include "libaout.h" |
| 34 | #include "aout/aout64.h" |
| 35 | #undef N_ABS |
| 36 | #undef exec_hdr |
| 37 | #undef obj_sym_filepos |
| 38 | |
| 39 | #include "coff/internal.h" |
| 40 | #include "coff/sym.h" |
| 41 | #include "coff/symconst.h" |
| 42 | #include "coff/ecoff.h" |
| 43 | #include "libcoff.h" |
| 44 | #include "libecoff.h" |
| 45 | #include "libiberty.h" |
| 46 | |
| 47 | #define streq(a, b) (strcmp ((a), (b)) == 0) |
| 48 | #define strneq(a, b, n) (strncmp ((a), (b), (n)) == 0) |
| 49 | |
| 50 | \f |
| 51 | /* This stuff is somewhat copied from coffcode.h. */ |
| 52 | static asection bfd_debug_section = |
| 53 | { |
| 54 | /* name, id, index, next, prev, flags, user_set_vma, */ |
| 55 | "*DEBUG*", 0, 0, NULL, NULL, 0, 0, |
| 56 | /* linker_mark, linker_has_input, gc_mark, compress_status, */ |
| 57 | 0, 0, 1, 0, |
| 58 | /* segment_mark, sec_info_type, use_rela_p, */ |
| 59 | 0, 0, 0, |
| 60 | /* sec_flg0, sec_flg1, sec_flg2, sec_flg3, sec_flg4, sec_flg5, */ |
| 61 | 0, 0, 0, 0, 0, 0, |
| 62 | /* vma, lma, size, rawsize, compressed_size, relax, relax_count, */ |
| 63 | 0, 0, 0, 0, 0, 0, 0, |
| 64 | /* output_offset, output_section, alignment_power, */ |
| 65 | 0, NULL, 0, |
| 66 | /* relocation, orelocation, reloc_count, filepos, rel_filepos, */ |
| 67 | NULL, NULL, 0, 0, 0, |
| 68 | /* line_filepos, userdata, contents, lineno, lineno_count, */ |
| 69 | 0, NULL, NULL, NULL, 0, |
| 70 | /* entsize, kept_section, moving_line_filepos, */ |
| 71 | 0, NULL, 0, |
| 72 | /* target_index, used_by_bfd, constructor_chain, owner, */ |
| 73 | 0, NULL, NULL, NULL, |
| 74 | /* symbol, */ |
| 75 | NULL, |
| 76 | /* symbol_ptr_ptr, */ |
| 77 | NULL, |
| 78 | /* map_head, map_tail */ |
| 79 | { NULL }, { NULL } |
| 80 | }; |
| 81 | |
| 82 | /* Create an ECOFF object. */ |
| 83 | |
| 84 | bfd_boolean |
| 85 | _bfd_ecoff_mkobject (bfd *abfd) |
| 86 | { |
| 87 | bfd_size_type amt = sizeof (ecoff_data_type); |
| 88 | |
| 89 | abfd->tdata.ecoff_obj_data = (struct ecoff_tdata *) bfd_zalloc (abfd, amt); |
| 90 | if (abfd->tdata.ecoff_obj_data == NULL) |
| 91 | return FALSE; |
| 92 | |
| 93 | return TRUE; |
| 94 | } |
| 95 | |
| 96 | /* This is a hook called by coff_real_object_p to create any backend |
| 97 | specific information. */ |
| 98 | |
| 99 | void * |
| 100 | _bfd_ecoff_mkobject_hook (bfd *abfd, void * filehdr, void * aouthdr) |
| 101 | { |
| 102 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
| 103 | struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr; |
| 104 | ecoff_data_type *ecoff; |
| 105 | |
| 106 | if (! _bfd_ecoff_mkobject (abfd)) |
| 107 | return NULL; |
| 108 | |
| 109 | ecoff = ecoff_data (abfd); |
| 110 | ecoff->gp_size = 8; |
| 111 | ecoff->sym_filepos = internal_f->f_symptr; |
| 112 | |
| 113 | if (internal_a != NULL) |
| 114 | { |
| 115 | int i; |
| 116 | |
| 117 | ecoff->text_start = internal_a->text_start; |
| 118 | ecoff->text_end = internal_a->text_start + internal_a->tsize; |
| 119 | ecoff->gp = internal_a->gp_value; |
| 120 | ecoff->gprmask = internal_a->gprmask; |
| 121 | for (i = 0; i < 4; i++) |
| 122 | ecoff->cprmask[i] = internal_a->cprmask[i]; |
| 123 | ecoff->fprmask = internal_a->fprmask; |
| 124 | if (internal_a->magic == ECOFF_AOUT_ZMAGIC) |
| 125 | abfd->flags |= D_PAGED; |
| 126 | else |
| 127 | abfd->flags &=~ D_PAGED; |
| 128 | } |
| 129 | |
| 130 | /* It turns out that no special action is required by the MIPS or |
| 131 | Alpha ECOFF backends. They have different information in the |
| 132 | a.out header, but we just copy it all (e.g., gprmask, cprmask and |
| 133 | fprmask) and let the swapping routines ensure that only relevant |
| 134 | information is written out. */ |
| 135 | |
| 136 | return (void *) ecoff; |
| 137 | } |
| 138 | |
| 139 | /* Initialize a new section. */ |
| 140 | |
| 141 | bfd_boolean |
| 142 | _bfd_ecoff_new_section_hook (bfd *abfd, asection *section) |
| 143 | { |
| 144 | unsigned int i; |
| 145 | static struct |
| 146 | { |
| 147 | const char * name; |
| 148 | flagword flags; |
| 149 | } |
| 150 | section_flags [] = |
| 151 | { |
| 152 | { _TEXT, SEC_ALLOC | SEC_CODE | SEC_LOAD }, |
| 153 | { _INIT, SEC_ALLOC | SEC_CODE | SEC_LOAD }, |
| 154 | { _FINI, SEC_ALLOC | SEC_CODE | SEC_LOAD }, |
| 155 | { _DATA, SEC_ALLOC | SEC_DATA | SEC_LOAD }, |
| 156 | { _SDATA, SEC_ALLOC | SEC_DATA | SEC_LOAD }, |
| 157 | { _RDATA, SEC_ALLOC | SEC_DATA | SEC_LOAD | SEC_READONLY}, |
| 158 | { _LIT8, SEC_ALLOC | SEC_DATA | SEC_LOAD | SEC_READONLY}, |
| 159 | { _LIT4, SEC_ALLOC | SEC_DATA | SEC_LOAD | SEC_READONLY}, |
| 160 | { _RCONST, SEC_ALLOC | SEC_DATA | SEC_LOAD | SEC_READONLY}, |
| 161 | { _PDATA, SEC_ALLOC | SEC_DATA | SEC_LOAD | SEC_READONLY}, |
| 162 | { _BSS, SEC_ALLOC}, |
| 163 | { _SBSS, SEC_ALLOC}, |
| 164 | /* An Irix 4 shared libary. */ |
| 165 | { _LIB, SEC_COFF_SHARED_LIBRARY} |
| 166 | }; |
| 167 | |
| 168 | section->alignment_power = 4; |
| 169 | |
| 170 | for (i = 0; i < ARRAY_SIZE (section_flags); i++) |
| 171 | if (streq (section->name, section_flags[i].name)) |
| 172 | { |
| 173 | section->flags |= section_flags[i].flags; |
| 174 | break; |
| 175 | } |
| 176 | |
| 177 | |
| 178 | /* Probably any other section name is SEC_NEVER_LOAD, but I'm |
| 179 | uncertain about .init on some systems and I don't know how shared |
| 180 | libraries work. */ |
| 181 | |
| 182 | return _bfd_generic_new_section_hook (abfd, section); |
| 183 | } |
| 184 | |
| 185 | /* Determine the machine architecture and type. This is called from |
| 186 | the generic COFF routines. It is the inverse of ecoff_get_magic, |
| 187 | below. This could be an ECOFF backend routine, with one version |
| 188 | for each target, but there aren't all that many ECOFF targets. */ |
| 189 | |
| 190 | bfd_boolean |
| 191 | _bfd_ecoff_set_arch_mach_hook (bfd *abfd, void * filehdr) |
| 192 | { |
| 193 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
| 194 | enum bfd_architecture arch; |
| 195 | unsigned long mach; |
| 196 | |
| 197 | switch (internal_f->f_magic) |
| 198 | { |
| 199 | case MIPS_MAGIC_1: |
| 200 | case MIPS_MAGIC_LITTLE: |
| 201 | case MIPS_MAGIC_BIG: |
| 202 | arch = bfd_arch_mips; |
| 203 | mach = bfd_mach_mips3000; |
| 204 | break; |
| 205 | |
| 206 | case MIPS_MAGIC_LITTLE2: |
| 207 | case MIPS_MAGIC_BIG2: |
| 208 | /* MIPS ISA level 2: the r6000. */ |
| 209 | arch = bfd_arch_mips; |
| 210 | mach = bfd_mach_mips6000; |
| 211 | break; |
| 212 | |
| 213 | case MIPS_MAGIC_LITTLE3: |
| 214 | case MIPS_MAGIC_BIG3: |
| 215 | /* MIPS ISA level 3: the r4000. */ |
| 216 | arch = bfd_arch_mips; |
| 217 | mach = bfd_mach_mips4000; |
| 218 | break; |
| 219 | |
| 220 | case ALPHA_MAGIC: |
| 221 | arch = bfd_arch_alpha; |
| 222 | mach = 0; |
| 223 | break; |
| 224 | |
| 225 | default: |
| 226 | arch = bfd_arch_obscure; |
| 227 | mach = 0; |
| 228 | break; |
| 229 | } |
| 230 | |
| 231 | return bfd_default_set_arch_mach (abfd, arch, mach); |
| 232 | } |
| 233 | |
| 234 | bfd_boolean |
| 235 | _bfd_ecoff_no_long_sections (bfd *abfd, int enable) |
| 236 | { |
| 237 | (void) abfd; |
| 238 | (void) enable; |
| 239 | return FALSE; |
| 240 | } |
| 241 | |
| 242 | /* Get the magic number to use based on the architecture and machine. |
| 243 | This is the inverse of _bfd_ecoff_set_arch_mach_hook, above. */ |
| 244 | |
| 245 | static int |
| 246 | ecoff_get_magic (bfd *abfd) |
| 247 | { |
| 248 | int big, little; |
| 249 | |
| 250 | switch (bfd_get_arch (abfd)) |
| 251 | { |
| 252 | case bfd_arch_mips: |
| 253 | switch (bfd_get_mach (abfd)) |
| 254 | { |
| 255 | default: |
| 256 | case 0: |
| 257 | case bfd_mach_mips3000: |
| 258 | big = MIPS_MAGIC_BIG; |
| 259 | little = MIPS_MAGIC_LITTLE; |
| 260 | break; |
| 261 | |
| 262 | case bfd_mach_mips6000: |
| 263 | big = MIPS_MAGIC_BIG2; |
| 264 | little = MIPS_MAGIC_LITTLE2; |
| 265 | break; |
| 266 | |
| 267 | case bfd_mach_mips4000: |
| 268 | big = MIPS_MAGIC_BIG3; |
| 269 | little = MIPS_MAGIC_LITTLE3; |
| 270 | break; |
| 271 | } |
| 272 | |
| 273 | return bfd_big_endian (abfd) ? big : little; |
| 274 | |
| 275 | case bfd_arch_alpha: |
| 276 | return ALPHA_MAGIC; |
| 277 | |
| 278 | default: |
| 279 | abort (); |
| 280 | return 0; |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | /* Get the section s_flags to use for a section. */ |
| 285 | |
| 286 | static long |
| 287 | ecoff_sec_to_styp_flags (const char *name, flagword flags) |
| 288 | { |
| 289 | unsigned int i; |
| 290 | static struct |
| 291 | { |
| 292 | const char * name; |
| 293 | long flags; |
| 294 | } |
| 295 | styp_flags [] = |
| 296 | { |
| 297 | { _TEXT, STYP_TEXT }, |
| 298 | { _DATA, STYP_DATA }, |
| 299 | { _SDATA, STYP_SDATA }, |
| 300 | { _RDATA, STYP_RDATA }, |
| 301 | { _LITA, STYP_LITA }, |
| 302 | { _LIT8, STYP_LIT8 }, |
| 303 | { _LIT4, STYP_LIT4 }, |
| 304 | { _BSS, STYP_BSS }, |
| 305 | { _SBSS, STYP_SBSS }, |
| 306 | { _INIT, STYP_ECOFF_INIT }, |
| 307 | { _FINI, STYP_ECOFF_FINI }, |
| 308 | { _PDATA, STYP_PDATA }, |
| 309 | { _XDATA, STYP_XDATA }, |
| 310 | { _LIB, STYP_ECOFF_LIB }, |
| 311 | { _GOT, STYP_GOT }, |
| 312 | { _HASH, STYP_HASH }, |
| 313 | { _DYNAMIC, STYP_DYNAMIC }, |
| 314 | { _LIBLIST, STYP_LIBLIST }, |
| 315 | { _RELDYN, STYP_RELDYN }, |
| 316 | { _CONFLIC, STYP_CONFLIC }, |
| 317 | { _DYNSTR, STYP_DYNSTR }, |
| 318 | { _DYNSYM, STYP_DYNSYM }, |
| 319 | { _RCONST, STYP_RCONST } |
| 320 | }; |
| 321 | long styp = 0; |
| 322 | |
| 323 | for (i = 0; i < ARRAY_SIZE (styp_flags); i++) |
| 324 | if (streq (name, styp_flags[i].name)) |
| 325 | { |
| 326 | styp = styp_flags[i].flags; |
| 327 | break; |
| 328 | } |
| 329 | |
| 330 | if (styp == 0) |
| 331 | { |
| 332 | if (streq (name, _COMMENT)) |
| 333 | { |
| 334 | styp = STYP_COMMENT; |
| 335 | flags &=~ SEC_NEVER_LOAD; |
| 336 | } |
| 337 | else if (flags & SEC_CODE) |
| 338 | styp = STYP_TEXT; |
| 339 | else if (flags & SEC_DATA) |
| 340 | styp = STYP_DATA; |
| 341 | else if (flags & SEC_READONLY) |
| 342 | styp = STYP_RDATA; |
| 343 | else if (flags & SEC_LOAD) |
| 344 | styp = STYP_REG; |
| 345 | else |
| 346 | styp = STYP_BSS; |
| 347 | } |
| 348 | |
| 349 | if (flags & SEC_NEVER_LOAD) |
| 350 | styp |= STYP_NOLOAD; |
| 351 | |
| 352 | return styp; |
| 353 | } |
| 354 | |
| 355 | /* Get the BFD flags to use for a section. */ |
| 356 | |
| 357 | bfd_boolean |
| 358 | _bfd_ecoff_styp_to_sec_flags (bfd *abfd ATTRIBUTE_UNUSED, |
| 359 | void * hdr, |
| 360 | const char *name ATTRIBUTE_UNUSED, |
| 361 | asection *section ATTRIBUTE_UNUSED, |
| 362 | flagword * flags_ptr) |
| 363 | { |
| 364 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; |
| 365 | long styp_flags = internal_s->s_flags; |
| 366 | flagword sec_flags = 0; |
| 367 | |
| 368 | if (styp_flags & STYP_NOLOAD) |
| 369 | sec_flags |= SEC_NEVER_LOAD; |
| 370 | |
| 371 | /* For 386 COFF, at least, an unloadable text or data section is |
| 372 | actually a shared library section. */ |
| 373 | if ((styp_flags & STYP_TEXT) |
| 374 | || (styp_flags & STYP_ECOFF_INIT) |
| 375 | || (styp_flags & STYP_ECOFF_FINI) |
| 376 | || (styp_flags & STYP_DYNAMIC) |
| 377 | || (styp_flags & STYP_LIBLIST) |
| 378 | || (styp_flags & STYP_RELDYN) |
| 379 | || styp_flags == STYP_CONFLIC |
| 380 | || (styp_flags & STYP_DYNSTR) |
| 381 | || (styp_flags & STYP_DYNSYM) |
| 382 | || (styp_flags & STYP_HASH)) |
| 383 | { |
| 384 | if (sec_flags & SEC_NEVER_LOAD) |
| 385 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; |
| 386 | else |
| 387 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; |
| 388 | } |
| 389 | else if ((styp_flags & STYP_DATA) |
| 390 | || (styp_flags & STYP_RDATA) |
| 391 | || (styp_flags & STYP_SDATA) |
| 392 | || styp_flags == STYP_PDATA |
| 393 | || styp_flags == STYP_XDATA |
| 394 | || (styp_flags & STYP_GOT) |
| 395 | || styp_flags == STYP_RCONST) |
| 396 | { |
| 397 | if (sec_flags & SEC_NEVER_LOAD) |
| 398 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; |
| 399 | else |
| 400 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; |
| 401 | if ((styp_flags & STYP_RDATA) |
| 402 | || styp_flags == STYP_PDATA |
| 403 | || styp_flags == STYP_RCONST) |
| 404 | sec_flags |= SEC_READONLY; |
| 405 | } |
| 406 | else if ((styp_flags & STYP_BSS) |
| 407 | || (styp_flags & STYP_SBSS)) |
| 408 | sec_flags |= SEC_ALLOC; |
| 409 | else if ((styp_flags & STYP_INFO) || styp_flags == STYP_COMMENT) |
| 410 | sec_flags |= SEC_NEVER_LOAD; |
| 411 | else if ((styp_flags & STYP_LITA) |
| 412 | || (styp_flags & STYP_LIT8) |
| 413 | || (styp_flags & STYP_LIT4)) |
| 414 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; |
| 415 | else if (styp_flags & STYP_ECOFF_LIB) |
| 416 | sec_flags |= SEC_COFF_SHARED_LIBRARY; |
| 417 | else |
| 418 | sec_flags |= SEC_ALLOC | SEC_LOAD; |
| 419 | |
| 420 | * flags_ptr = sec_flags; |
| 421 | return TRUE; |
| 422 | } |
| 423 | \f |
| 424 | /* Read in the symbolic header for an ECOFF object file. */ |
| 425 | |
| 426 | static bfd_boolean |
| 427 | ecoff_slurp_symbolic_header (bfd *abfd) |
| 428 | { |
| 429 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 430 | bfd_size_type external_hdr_size; |
| 431 | void * raw = NULL; |
| 432 | HDRR *internal_symhdr; |
| 433 | |
| 434 | /* See if we've already read it in. */ |
| 435 | if (ecoff_data (abfd)->debug_info.symbolic_header.magic == |
| 436 | backend->debug_swap.sym_magic) |
| 437 | return TRUE; |
| 438 | |
| 439 | /* See whether there is a symbolic header. */ |
| 440 | if (ecoff_data (abfd)->sym_filepos == 0) |
| 441 | { |
| 442 | bfd_get_symcount (abfd) = 0; |
| 443 | return TRUE; |
| 444 | } |
| 445 | |
| 446 | /* At this point bfd_get_symcount (abfd) holds the number of symbols |
| 447 | as read from the file header, but on ECOFF this is always the |
| 448 | size of the symbolic information header. It would be cleaner to |
| 449 | handle this when we first read the file in coffgen.c. */ |
| 450 | external_hdr_size = backend->debug_swap.external_hdr_size; |
| 451 | if (bfd_get_symcount (abfd) != external_hdr_size) |
| 452 | { |
| 453 | bfd_set_error (bfd_error_bad_value); |
| 454 | return FALSE; |
| 455 | } |
| 456 | |
| 457 | /* Read the symbolic information header. */ |
| 458 | raw = bfd_malloc (external_hdr_size); |
| 459 | if (raw == NULL) |
| 460 | goto error_return; |
| 461 | |
| 462 | if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) != 0 |
| 463 | || bfd_bread (raw, external_hdr_size, abfd) != external_hdr_size) |
| 464 | goto error_return; |
| 465 | internal_symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; |
| 466 | (*backend->debug_swap.swap_hdr_in) (abfd, raw, internal_symhdr); |
| 467 | |
| 468 | if (internal_symhdr->magic != backend->debug_swap.sym_magic) |
| 469 | { |
| 470 | bfd_set_error (bfd_error_bad_value); |
| 471 | goto error_return; |
| 472 | } |
| 473 | |
| 474 | /* Now we can get the correct number of symbols. */ |
| 475 | bfd_get_symcount (abfd) = (internal_symhdr->isymMax |
| 476 | + internal_symhdr->iextMax); |
| 477 | |
| 478 | if (raw != NULL) |
| 479 | free (raw); |
| 480 | return TRUE; |
| 481 | error_return: |
| 482 | if (raw != NULL) |
| 483 | free (raw); |
| 484 | return FALSE; |
| 485 | } |
| 486 | |
| 487 | /* Read in and swap the important symbolic information for an ECOFF |
| 488 | object file. This is called by gdb via the read_debug_info entry |
| 489 | point in the backend structure. */ |
| 490 | |
| 491 | bfd_boolean |
| 492 | _bfd_ecoff_slurp_symbolic_info (bfd *abfd, |
| 493 | asection *ignore ATTRIBUTE_UNUSED, |
| 494 | struct ecoff_debug_info *debug) |
| 495 | { |
| 496 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 497 | HDRR *internal_symhdr; |
| 498 | bfd_size_type raw_base; |
| 499 | bfd_size_type raw_size; |
| 500 | void * raw; |
| 501 | bfd_size_type external_fdr_size; |
| 502 | char *fraw_src; |
| 503 | char *fraw_end; |
| 504 | struct fdr *fdr_ptr; |
| 505 | bfd_size_type raw_end; |
| 506 | bfd_size_type cb_end; |
| 507 | bfd_size_type amt; |
| 508 | file_ptr pos; |
| 509 | |
| 510 | BFD_ASSERT (debug == &ecoff_data (abfd)->debug_info); |
| 511 | |
| 512 | /* Check whether we've already gotten it, and whether there's any to |
| 513 | get. */ |
| 514 | if (ecoff_data (abfd)->raw_syments != NULL) |
| 515 | return TRUE; |
| 516 | if (ecoff_data (abfd)->sym_filepos == 0) |
| 517 | { |
| 518 | bfd_get_symcount (abfd) = 0; |
| 519 | return TRUE; |
| 520 | } |
| 521 | |
| 522 | if (! ecoff_slurp_symbolic_header (abfd)) |
| 523 | return FALSE; |
| 524 | |
| 525 | internal_symhdr = &debug->symbolic_header; |
| 526 | |
| 527 | /* Read all the symbolic information at once. */ |
| 528 | raw_base = (ecoff_data (abfd)->sym_filepos |
| 529 | + backend->debug_swap.external_hdr_size); |
| 530 | |
| 531 | /* Alpha ecoff makes the determination of raw_size difficult. It has |
| 532 | an undocumented debug data section between the symhdr and the first |
| 533 | documented section. And the ordering of the sections varies between |
| 534 | statically and dynamically linked executables. |
| 535 | If bfd supports SEEK_END someday, this code could be simplified. */ |
| 536 | raw_end = 0; |
| 537 | |
| 538 | #define UPDATE_RAW_END(start, count, size) \ |
| 539 | cb_end = internal_symhdr->start + internal_symhdr->count * (size); \ |
| 540 | if (cb_end > raw_end) \ |
| 541 | raw_end = cb_end |
| 542 | |
| 543 | UPDATE_RAW_END (cbLineOffset, cbLine, sizeof (unsigned char)); |
| 544 | UPDATE_RAW_END (cbDnOffset, idnMax, backend->debug_swap.external_dnr_size); |
| 545 | UPDATE_RAW_END (cbPdOffset, ipdMax, backend->debug_swap.external_pdr_size); |
| 546 | UPDATE_RAW_END (cbSymOffset, isymMax, backend->debug_swap.external_sym_size); |
| 547 | /* eraxxon@alumni.rice.edu: ioptMax refers to the size of the |
| 548 | optimization symtab, not the number of entries. */ |
| 549 | UPDATE_RAW_END (cbOptOffset, ioptMax, sizeof (char)); |
| 550 | UPDATE_RAW_END (cbAuxOffset, iauxMax, sizeof (union aux_ext)); |
| 551 | UPDATE_RAW_END (cbSsOffset, issMax, sizeof (char)); |
| 552 | UPDATE_RAW_END (cbSsExtOffset, issExtMax, sizeof (char)); |
| 553 | UPDATE_RAW_END (cbFdOffset, ifdMax, backend->debug_swap.external_fdr_size); |
| 554 | UPDATE_RAW_END (cbRfdOffset, crfd, backend->debug_swap.external_rfd_size); |
| 555 | UPDATE_RAW_END (cbExtOffset, iextMax, backend->debug_swap.external_ext_size); |
| 556 | |
| 557 | #undef UPDATE_RAW_END |
| 558 | |
| 559 | raw_size = raw_end - raw_base; |
| 560 | if (raw_size == 0) |
| 561 | { |
| 562 | ecoff_data (abfd)->sym_filepos = 0; |
| 563 | return TRUE; |
| 564 | } |
| 565 | raw = bfd_alloc (abfd, raw_size); |
| 566 | if (raw == NULL) |
| 567 | return FALSE; |
| 568 | |
| 569 | pos = ecoff_data (abfd)->sym_filepos; |
| 570 | pos += backend->debug_swap.external_hdr_size; |
| 571 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 |
| 572 | || bfd_bread (raw, raw_size, abfd) != raw_size) |
| 573 | { |
| 574 | bfd_release (abfd, raw); |
| 575 | return FALSE; |
| 576 | } |
| 577 | |
| 578 | ecoff_data (abfd)->raw_syments = raw; |
| 579 | |
| 580 | /* Get pointers for the numeric offsets in the HDRR structure. */ |
| 581 | #define FIX(off1, off2, type) \ |
| 582 | if (internal_symhdr->off1 == 0) \ |
| 583 | debug->off2 = NULL; \ |
| 584 | else \ |
| 585 | debug->off2 = (type) ((char *) raw \ |
| 586 | + (internal_symhdr->off1 \ |
| 587 | - raw_base)) |
| 588 | |
| 589 | FIX (cbLineOffset, line, unsigned char *); |
| 590 | FIX (cbDnOffset, external_dnr, void *); |
| 591 | FIX (cbPdOffset, external_pdr, void *); |
| 592 | FIX (cbSymOffset, external_sym, void *); |
| 593 | FIX (cbOptOffset, external_opt, void *); |
| 594 | FIX (cbAuxOffset, external_aux, union aux_ext *); |
| 595 | FIX (cbSsOffset, ss, char *); |
| 596 | FIX (cbSsExtOffset, ssext, char *); |
| 597 | FIX (cbFdOffset, external_fdr, void *); |
| 598 | FIX (cbRfdOffset, external_rfd, void *); |
| 599 | FIX (cbExtOffset, external_ext, void *); |
| 600 | #undef FIX |
| 601 | |
| 602 | /* I don't want to always swap all the data, because it will just |
| 603 | waste time and most programs will never look at it. The only |
| 604 | time the linker needs most of the debugging information swapped |
| 605 | is when linking big-endian and little-endian MIPS object files |
| 606 | together, which is not a common occurrence. |
| 607 | |
| 608 | We need to look at the fdr to deal with a lot of information in |
| 609 | the symbols, so we swap them here. */ |
| 610 | amt = internal_symhdr->ifdMax; |
| 611 | amt *= sizeof (struct fdr); |
| 612 | debug->fdr = (FDR *) bfd_alloc (abfd, amt); |
| 613 | if (debug->fdr == NULL) |
| 614 | return FALSE; |
| 615 | external_fdr_size = backend->debug_swap.external_fdr_size; |
| 616 | fdr_ptr = debug->fdr; |
| 617 | fraw_src = (char *) debug->external_fdr; |
| 618 | fraw_end = fraw_src + internal_symhdr->ifdMax * external_fdr_size; |
| 619 | for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++) |
| 620 | (*backend->debug_swap.swap_fdr_in) (abfd, (void *) fraw_src, fdr_ptr); |
| 621 | |
| 622 | return TRUE; |
| 623 | } |
| 624 | \f |
| 625 | /* ECOFF symbol table routines. The ECOFF symbol table is described |
| 626 | in gcc/mips-tfile.c. */ |
| 627 | |
| 628 | /* ECOFF uses two common sections. One is the usual one, and the |
| 629 | other is for small objects. All the small objects are kept |
| 630 | together, and then referenced via the gp pointer, which yields |
| 631 | faster assembler code. This is what we use for the small common |
| 632 | section. */ |
| 633 | static asection ecoff_scom_section; |
| 634 | static asymbol ecoff_scom_symbol; |
| 635 | static asymbol *ecoff_scom_symbol_ptr; |
| 636 | |
| 637 | /* Create an empty symbol. */ |
| 638 | |
| 639 | asymbol * |
| 640 | _bfd_ecoff_make_empty_symbol (bfd *abfd) |
| 641 | { |
| 642 | ecoff_symbol_type *new_symbol; |
| 643 | bfd_size_type amt = sizeof (ecoff_symbol_type); |
| 644 | |
| 645 | new_symbol = (ecoff_symbol_type *) bfd_zalloc (abfd, amt); |
| 646 | if (new_symbol == NULL) |
| 647 | return NULL; |
| 648 | new_symbol->symbol.section = NULL; |
| 649 | new_symbol->fdr = NULL; |
| 650 | new_symbol->local = FALSE; |
| 651 | new_symbol->native = NULL; |
| 652 | new_symbol->symbol.the_bfd = abfd; |
| 653 | return &new_symbol->symbol; |
| 654 | } |
| 655 | |
| 656 | /* Set the BFD flags and section for an ECOFF symbol. */ |
| 657 | |
| 658 | static bfd_boolean |
| 659 | ecoff_set_symbol_info (bfd *abfd, |
| 660 | SYMR *ecoff_sym, |
| 661 | asymbol *asym, |
| 662 | int ext, |
| 663 | int weak) |
| 664 | { |
| 665 | asym->the_bfd = abfd; |
| 666 | asym->value = ecoff_sym->value; |
| 667 | asym->section = &bfd_debug_section; |
| 668 | asym->udata.i = 0; |
| 669 | |
| 670 | /* Most symbol types are just for debugging. */ |
| 671 | switch (ecoff_sym->st) |
| 672 | { |
| 673 | case stGlobal: |
| 674 | case stStatic: |
| 675 | case stLabel: |
| 676 | case stProc: |
| 677 | case stStaticProc: |
| 678 | break; |
| 679 | case stNil: |
| 680 | if (ECOFF_IS_STAB (ecoff_sym)) |
| 681 | { |
| 682 | asym->flags = BSF_DEBUGGING; |
| 683 | return TRUE; |
| 684 | } |
| 685 | break; |
| 686 | default: |
| 687 | asym->flags = BSF_DEBUGGING; |
| 688 | return TRUE; |
| 689 | } |
| 690 | |
| 691 | if (weak) |
| 692 | asym->flags = BSF_EXPORT | BSF_WEAK; |
| 693 | else if (ext) |
| 694 | asym->flags = BSF_EXPORT | BSF_GLOBAL; |
| 695 | else |
| 696 | { |
| 697 | asym->flags = BSF_LOCAL; |
| 698 | /* Normally, a local stProc symbol will have a corresponding |
| 699 | external symbol. We mark the local symbol as a debugging |
| 700 | symbol, in order to prevent nm from printing both out. |
| 701 | Similarly, we mark stLabel and stabs symbols as debugging |
| 702 | symbols. In both cases, we do want to set the value |
| 703 | correctly based on the symbol class. */ |
| 704 | if (ecoff_sym->st == stProc |
| 705 | || ecoff_sym->st == stLabel |
| 706 | || ECOFF_IS_STAB (ecoff_sym)) |
| 707 | asym->flags |= BSF_DEBUGGING; |
| 708 | } |
| 709 | |
| 710 | if (ecoff_sym->st == stProc || ecoff_sym->st == stStaticProc) |
| 711 | asym->flags |= BSF_FUNCTION; |
| 712 | |
| 713 | switch (ecoff_sym->sc) |
| 714 | { |
| 715 | case scNil: |
| 716 | /* Used for compiler generated labels. Leave them in the |
| 717 | debugging section, and mark them as local. If BSF_DEBUGGING |
| 718 | is set, then nm does not display them for some reason. If no |
| 719 | flags are set then the linker whines about them. */ |
| 720 | asym->flags = BSF_LOCAL; |
| 721 | break; |
| 722 | case scText: |
| 723 | asym->section = bfd_make_section_old_way (abfd, _TEXT); |
| 724 | asym->value -= asym->section->vma; |
| 725 | break; |
| 726 | case scData: |
| 727 | asym->section = bfd_make_section_old_way (abfd, _DATA); |
| 728 | asym->value -= asym->section->vma; |
| 729 | break; |
| 730 | case scBss: |
| 731 | asym->section = bfd_make_section_old_way (abfd, _BSS); |
| 732 | asym->value -= asym->section->vma; |
| 733 | break; |
| 734 | case scRegister: |
| 735 | asym->flags = BSF_DEBUGGING; |
| 736 | break; |
| 737 | case scAbs: |
| 738 | asym->section = bfd_abs_section_ptr; |
| 739 | break; |
| 740 | case scUndefined: |
| 741 | asym->section = bfd_und_section_ptr; |
| 742 | asym->flags = 0; |
| 743 | asym->value = 0; |
| 744 | break; |
| 745 | case scCdbLocal: |
| 746 | case scBits: |
| 747 | case scCdbSystem: |
| 748 | case scRegImage: |
| 749 | case scInfo: |
| 750 | case scUserStruct: |
| 751 | asym->flags = BSF_DEBUGGING; |
| 752 | break; |
| 753 | case scSData: |
| 754 | asym->section = bfd_make_section_old_way (abfd, ".sdata"); |
| 755 | asym->value -= asym->section->vma; |
| 756 | break; |
| 757 | case scSBss: |
| 758 | asym->section = bfd_make_section_old_way (abfd, ".sbss"); |
| 759 | asym->value -= asym->section->vma; |
| 760 | break; |
| 761 | case scRData: |
| 762 | asym->section = bfd_make_section_old_way (abfd, ".rdata"); |
| 763 | asym->value -= asym->section->vma; |
| 764 | break; |
| 765 | case scVar: |
| 766 | asym->flags = BSF_DEBUGGING; |
| 767 | break; |
| 768 | case scCommon: |
| 769 | if (asym->value > ecoff_data (abfd)->gp_size) |
| 770 | { |
| 771 | asym->section = bfd_com_section_ptr; |
| 772 | asym->flags = 0; |
| 773 | break; |
| 774 | } |
| 775 | /* Fall through. */ |
| 776 | case scSCommon: |
| 777 | if (ecoff_scom_section.name == NULL) |
| 778 | { |
| 779 | /* Initialize the small common section. */ |
| 780 | ecoff_scom_section.name = SCOMMON; |
| 781 | ecoff_scom_section.flags = SEC_IS_COMMON; |
| 782 | ecoff_scom_section.output_section = &ecoff_scom_section; |
| 783 | ecoff_scom_section.symbol = &ecoff_scom_symbol; |
| 784 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; |
| 785 | ecoff_scom_symbol.name = SCOMMON; |
| 786 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; |
| 787 | ecoff_scom_symbol.section = &ecoff_scom_section; |
| 788 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; |
| 789 | } |
| 790 | asym->section = &ecoff_scom_section; |
| 791 | asym->flags = 0; |
| 792 | break; |
| 793 | case scVarRegister: |
| 794 | case scVariant: |
| 795 | asym->flags = BSF_DEBUGGING; |
| 796 | break; |
| 797 | case scSUndefined: |
| 798 | asym->section = bfd_und_section_ptr; |
| 799 | asym->flags = 0; |
| 800 | asym->value = 0; |
| 801 | break; |
| 802 | case scInit: |
| 803 | asym->section = bfd_make_section_old_way (abfd, ".init"); |
| 804 | asym->value -= asym->section->vma; |
| 805 | break; |
| 806 | case scBasedVar: |
| 807 | case scXData: |
| 808 | case scPData: |
| 809 | asym->flags = BSF_DEBUGGING; |
| 810 | break; |
| 811 | case scFini: |
| 812 | asym->section = bfd_make_section_old_way (abfd, ".fini"); |
| 813 | asym->value -= asym->section->vma; |
| 814 | break; |
| 815 | case scRConst: |
| 816 | asym->section = bfd_make_section_old_way (abfd, ".rconst"); |
| 817 | asym->value -= asym->section->vma; |
| 818 | break; |
| 819 | default: |
| 820 | break; |
| 821 | } |
| 822 | |
| 823 | /* Look for special constructors symbols and make relocation entries |
| 824 | in a special construction section. These are produced by the |
| 825 | -fgnu-linker argument to g++. */ |
| 826 | if (ECOFF_IS_STAB (ecoff_sym)) |
| 827 | { |
| 828 | switch (ECOFF_UNMARK_STAB (ecoff_sym->index)) |
| 829 | { |
| 830 | default: |
| 831 | break; |
| 832 | |
| 833 | case N_SETA: |
| 834 | case N_SETT: |
| 835 | case N_SETD: |
| 836 | case N_SETB: |
| 837 | /* Mark the symbol as a constructor. */ |
| 838 | asym->flags |= BSF_CONSTRUCTOR; |
| 839 | break; |
| 840 | } |
| 841 | } |
| 842 | return TRUE; |
| 843 | } |
| 844 | |
| 845 | /* Read an ECOFF symbol table. */ |
| 846 | |
| 847 | bfd_boolean |
| 848 | _bfd_ecoff_slurp_symbol_table (bfd *abfd) |
| 849 | { |
| 850 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 851 | const bfd_size_type external_ext_size |
| 852 | = backend->debug_swap.external_ext_size; |
| 853 | const bfd_size_type external_sym_size |
| 854 | = backend->debug_swap.external_sym_size; |
| 855 | void (* const swap_ext_in) (bfd *, void *, EXTR *) |
| 856 | = backend->debug_swap.swap_ext_in; |
| 857 | void (* const swap_sym_in) (bfd *, void *, SYMR *) |
| 858 | = backend->debug_swap.swap_sym_in; |
| 859 | bfd_size_type internal_size; |
| 860 | ecoff_symbol_type *internal; |
| 861 | ecoff_symbol_type *internal_ptr; |
| 862 | char *eraw_src; |
| 863 | char *eraw_end; |
| 864 | FDR *fdr_ptr; |
| 865 | FDR *fdr_end; |
| 866 | |
| 867 | /* If we've already read in the symbol table, do nothing. */ |
| 868 | if (ecoff_data (abfd)->canonical_symbols != NULL) |
| 869 | return TRUE; |
| 870 | |
| 871 | /* Get the symbolic information. */ |
| 872 | if (! _bfd_ecoff_slurp_symbolic_info (abfd, NULL, |
| 873 | &ecoff_data (abfd)->debug_info)) |
| 874 | return FALSE; |
| 875 | if (bfd_get_symcount (abfd) == 0) |
| 876 | return TRUE; |
| 877 | |
| 878 | internal_size = bfd_get_symcount (abfd); |
| 879 | internal_size *= sizeof (ecoff_symbol_type); |
| 880 | internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size); |
| 881 | if (internal == NULL) |
| 882 | return FALSE; |
| 883 | |
| 884 | internal_ptr = internal; |
| 885 | eraw_src = (char *) ecoff_data (abfd)->debug_info.external_ext; |
| 886 | eraw_end = (eraw_src |
| 887 | + (ecoff_data (abfd)->debug_info.symbolic_header.iextMax |
| 888 | * external_ext_size)); |
| 889 | for (; eraw_src < eraw_end; eraw_src += external_ext_size, internal_ptr++) |
| 890 | { |
| 891 | EXTR internal_esym; |
| 892 | |
| 893 | (*swap_ext_in) (abfd, (void *) eraw_src, &internal_esym); |
| 894 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ssext |
| 895 | + internal_esym.asym.iss); |
| 896 | if (!ecoff_set_symbol_info (abfd, &internal_esym.asym, |
| 897 | &internal_ptr->symbol, 1, |
| 898 | internal_esym.weakext)) |
| 899 | return FALSE; |
| 900 | /* The alpha uses a negative ifd field for section symbols. */ |
| 901 | if (internal_esym.ifd >= 0) |
| 902 | internal_ptr->fdr = (ecoff_data (abfd)->debug_info.fdr |
| 903 | + internal_esym.ifd); |
| 904 | else |
| 905 | internal_ptr->fdr = NULL; |
| 906 | internal_ptr->local = FALSE; |
| 907 | internal_ptr->native = (void *) eraw_src; |
| 908 | } |
| 909 | |
| 910 | /* The local symbols must be accessed via the fdr's, because the |
| 911 | string and aux indices are relative to the fdr information. */ |
| 912 | fdr_ptr = ecoff_data (abfd)->debug_info.fdr; |
| 913 | fdr_end = fdr_ptr + ecoff_data (abfd)->debug_info.symbolic_header.ifdMax; |
| 914 | for (; fdr_ptr < fdr_end; fdr_ptr++) |
| 915 | { |
| 916 | char *lraw_src; |
| 917 | char *lraw_end; |
| 918 | |
| 919 | lraw_src = ((char *) ecoff_data (abfd)->debug_info.external_sym |
| 920 | + fdr_ptr->isymBase * external_sym_size); |
| 921 | lraw_end = lraw_src + fdr_ptr->csym * external_sym_size; |
| 922 | for (; |
| 923 | lraw_src < lraw_end; |
| 924 | lraw_src += external_sym_size, internal_ptr++) |
| 925 | { |
| 926 | SYMR internal_sym; |
| 927 | |
| 928 | (*swap_sym_in) (abfd, (void *) lraw_src, &internal_sym); |
| 929 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ss |
| 930 | + fdr_ptr->issBase |
| 931 | + internal_sym.iss); |
| 932 | if (!ecoff_set_symbol_info (abfd, &internal_sym, |
| 933 | &internal_ptr->symbol, 0, 0)) |
| 934 | return FALSE; |
| 935 | internal_ptr->fdr = fdr_ptr; |
| 936 | internal_ptr->local = TRUE; |
| 937 | internal_ptr->native = (void *) lraw_src; |
| 938 | } |
| 939 | } |
| 940 | |
| 941 | ecoff_data (abfd)->canonical_symbols = internal; |
| 942 | |
| 943 | return TRUE; |
| 944 | } |
| 945 | |
| 946 | /* Return the amount of space needed for the canonical symbols. */ |
| 947 | |
| 948 | long |
| 949 | _bfd_ecoff_get_symtab_upper_bound (bfd *abfd) |
| 950 | { |
| 951 | if (! _bfd_ecoff_slurp_symbolic_info (abfd, NULL, |
| 952 | &ecoff_data (abfd)->debug_info)) |
| 953 | return -1; |
| 954 | |
| 955 | if (bfd_get_symcount (abfd) == 0) |
| 956 | return 0; |
| 957 | |
| 958 | return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *)); |
| 959 | } |
| 960 | |
| 961 | /* Get the canonical symbols. */ |
| 962 | |
| 963 | long |
| 964 | _bfd_ecoff_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
| 965 | { |
| 966 | unsigned int counter = 0; |
| 967 | ecoff_symbol_type *symbase; |
| 968 | ecoff_symbol_type **location = (ecoff_symbol_type **) alocation; |
| 969 | |
| 970 | if (! _bfd_ecoff_slurp_symbol_table (abfd)) |
| 971 | return -1; |
| 972 | if (bfd_get_symcount (abfd) == 0) |
| 973 | return 0; |
| 974 | |
| 975 | symbase = ecoff_data (abfd)->canonical_symbols; |
| 976 | while (counter < bfd_get_symcount (abfd)) |
| 977 | { |
| 978 | *(location++) = symbase++; |
| 979 | counter++; |
| 980 | } |
| 981 | *location++ = NULL; |
| 982 | return bfd_get_symcount (abfd); |
| 983 | } |
| 984 | |
| 985 | /* Turn ECOFF type information into a printable string. |
| 986 | ecoff_emit_aggregate and ecoff_type_to_string are from |
| 987 | gcc/mips-tdump.c, with swapping added and used_ptr removed. */ |
| 988 | |
| 989 | /* Write aggregate information to a string. */ |
| 990 | |
| 991 | static void |
| 992 | ecoff_emit_aggregate (bfd *abfd, |
| 993 | FDR *fdr, |
| 994 | char *string, |
| 995 | RNDXR *rndx, |
| 996 | long isym, |
| 997 | const char *which) |
| 998 | { |
| 999 | const struct ecoff_debug_swap * const debug_swap = |
| 1000 | &ecoff_backend (abfd)->debug_swap; |
| 1001 | struct ecoff_debug_info * const debug_info = &ecoff_data (abfd)->debug_info; |
| 1002 | unsigned int ifd = rndx->rfd; |
| 1003 | unsigned int indx = rndx->index; |
| 1004 | const char *name; |
| 1005 | |
| 1006 | if (ifd == 0xfff) |
| 1007 | ifd = isym; |
| 1008 | |
| 1009 | /* An ifd of -1 is an opaque type. An escaped index of 0 is a |
| 1010 | struct return type of a procedure compiled without -g. */ |
| 1011 | if (ifd == 0xffffffff |
| 1012 | || (rndx->rfd == 0xfff && indx == 0)) |
| 1013 | name = "<undefined>"; |
| 1014 | else if (indx == indexNil) |
| 1015 | name = "<no name>"; |
| 1016 | else |
| 1017 | { |
| 1018 | SYMR sym; |
| 1019 | |
| 1020 | if (debug_info->external_rfd == NULL) |
| 1021 | fdr = debug_info->fdr + ifd; |
| 1022 | else |
| 1023 | { |
| 1024 | RFDT rfd; |
| 1025 | |
| 1026 | (*debug_swap->swap_rfd_in) (abfd, |
| 1027 | ((char *) debug_info->external_rfd |
| 1028 | + ((fdr->rfdBase + ifd) |
| 1029 | * debug_swap->external_rfd_size)), |
| 1030 | &rfd); |
| 1031 | fdr = debug_info->fdr + rfd; |
| 1032 | } |
| 1033 | |
| 1034 | indx += fdr->isymBase; |
| 1035 | |
| 1036 | (*debug_swap->swap_sym_in) (abfd, |
| 1037 | ((char *) debug_info->external_sym |
| 1038 | + indx * debug_swap->external_sym_size), |
| 1039 | &sym); |
| 1040 | |
| 1041 | name = debug_info->ss + fdr->issBase + sym.iss; |
| 1042 | } |
| 1043 | |
| 1044 | sprintf (string, |
| 1045 | "%s %s { ifd = %u, index = %lu }", |
| 1046 | which, name, ifd, |
| 1047 | ((unsigned long) indx |
| 1048 | + debug_info->symbolic_header.iextMax)); |
| 1049 | } |
| 1050 | |
| 1051 | /* Convert the type information to string format. */ |
| 1052 | |
| 1053 | static char * |
| 1054 | ecoff_type_to_string (bfd *abfd, FDR *fdr, unsigned int indx) |
| 1055 | { |
| 1056 | union aux_ext *aux_ptr; |
| 1057 | int bigendian; |
| 1058 | AUXU u; |
| 1059 | struct qual |
| 1060 | { |
| 1061 | unsigned int type; |
| 1062 | int low_bound; |
| 1063 | int high_bound; |
| 1064 | int stride; |
| 1065 | } qualifiers[7]; |
| 1066 | unsigned int basic_type; |
| 1067 | int i; |
| 1068 | char buffer1[1024]; |
| 1069 | static char buffer2[1024]; |
| 1070 | char *p1 = buffer1; |
| 1071 | char *p2 = buffer2; |
| 1072 | RNDXR rndx; |
| 1073 | |
| 1074 | aux_ptr = ecoff_data (abfd)->debug_info.external_aux + fdr->iauxBase; |
| 1075 | bigendian = fdr->fBigendian; |
| 1076 | |
| 1077 | for (i = 0; i < 7; i++) |
| 1078 | { |
| 1079 | qualifiers[i].low_bound = 0; |
| 1080 | qualifiers[i].high_bound = 0; |
| 1081 | qualifiers[i].stride = 0; |
| 1082 | } |
| 1083 | |
| 1084 | if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == (bfd_vma) -1) |
| 1085 | return "-1 (no type)"; |
| 1086 | _bfd_ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti); |
| 1087 | |
| 1088 | basic_type = u.ti.bt; |
| 1089 | qualifiers[0].type = u.ti.tq0; |
| 1090 | qualifiers[1].type = u.ti.tq1; |
| 1091 | qualifiers[2].type = u.ti.tq2; |
| 1092 | qualifiers[3].type = u.ti.tq3; |
| 1093 | qualifiers[4].type = u.ti.tq4; |
| 1094 | qualifiers[5].type = u.ti.tq5; |
| 1095 | qualifiers[6].type = tqNil; |
| 1096 | |
| 1097 | /* Go get the basic type. */ |
| 1098 | switch (basic_type) |
| 1099 | { |
| 1100 | case btNil: /* Undefined. */ |
| 1101 | strcpy (p1, "nil"); |
| 1102 | break; |
| 1103 | |
| 1104 | case btAdr: /* Address - integer same size as pointer. */ |
| 1105 | strcpy (p1, "address"); |
| 1106 | break; |
| 1107 | |
| 1108 | case btChar: /* Character. */ |
| 1109 | strcpy (p1, "char"); |
| 1110 | break; |
| 1111 | |
| 1112 | case btUChar: /* Unsigned character. */ |
| 1113 | strcpy (p1, "unsigned char"); |
| 1114 | break; |
| 1115 | |
| 1116 | case btShort: /* Short. */ |
| 1117 | strcpy (p1, "short"); |
| 1118 | break; |
| 1119 | |
| 1120 | case btUShort: /* Unsigned short. */ |
| 1121 | strcpy (p1, "unsigned short"); |
| 1122 | break; |
| 1123 | |
| 1124 | case btInt: /* Int. */ |
| 1125 | strcpy (p1, "int"); |
| 1126 | break; |
| 1127 | |
| 1128 | case btUInt: /* Unsigned int. */ |
| 1129 | strcpy (p1, "unsigned int"); |
| 1130 | break; |
| 1131 | |
| 1132 | case btLong: /* Long. */ |
| 1133 | strcpy (p1, "long"); |
| 1134 | break; |
| 1135 | |
| 1136 | case btULong: /* Unsigned long. */ |
| 1137 | strcpy (p1, "unsigned long"); |
| 1138 | break; |
| 1139 | |
| 1140 | case btFloat: /* Float (real). */ |
| 1141 | strcpy (p1, "float"); |
| 1142 | break; |
| 1143 | |
| 1144 | case btDouble: /* Double (real). */ |
| 1145 | strcpy (p1, "double"); |
| 1146 | break; |
| 1147 | |
| 1148 | /* Structures add 1-2 aux words: |
| 1149 | 1st word is [ST_RFDESCAPE, offset] pointer to struct def; |
| 1150 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ |
| 1151 | |
| 1152 | case btStruct: /* Structure (Record). */ |
| 1153 | _bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); |
| 1154 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, |
| 1155 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
| 1156 | "struct"); |
| 1157 | indx++; /* Skip aux words. */ |
| 1158 | break; |
| 1159 | |
| 1160 | /* Unions add 1-2 aux words: |
| 1161 | 1st word is [ST_RFDESCAPE, offset] pointer to union def; |
| 1162 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ |
| 1163 | |
| 1164 | case btUnion: /* Union. */ |
| 1165 | _bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); |
| 1166 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, |
| 1167 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
| 1168 | "union"); |
| 1169 | indx++; /* Skip aux words. */ |
| 1170 | break; |
| 1171 | |
| 1172 | /* Enumerations add 1-2 aux words: |
| 1173 | 1st word is [ST_RFDESCAPE, offset] pointer to enum def; |
| 1174 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ |
| 1175 | |
| 1176 | case btEnum: /* Enumeration. */ |
| 1177 | _bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); |
| 1178 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, |
| 1179 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
| 1180 | "enum"); |
| 1181 | indx++; /* Skip aux words. */ |
| 1182 | break; |
| 1183 | |
| 1184 | case btTypedef: /* Defined via a typedef, isymRef points. */ |
| 1185 | strcpy (p1, "typedef"); |
| 1186 | break; |
| 1187 | |
| 1188 | case btRange: /* Subrange of int. */ |
| 1189 | strcpy (p1, "subrange"); |
| 1190 | break; |
| 1191 | |
| 1192 | case btSet: /* Pascal sets. */ |
| 1193 | strcpy (p1, "set"); |
| 1194 | break; |
| 1195 | |
| 1196 | case btComplex: /* Fortran complex. */ |
| 1197 | strcpy (p1, "complex"); |
| 1198 | break; |
| 1199 | |
| 1200 | case btDComplex: /* Fortran double complex. */ |
| 1201 | strcpy (p1, "double complex"); |
| 1202 | break; |
| 1203 | |
| 1204 | case btIndirect: /* Forward or unnamed typedef. */ |
| 1205 | strcpy (p1, "forward/unamed typedef"); |
| 1206 | break; |
| 1207 | |
| 1208 | case btFixedDec: /* Fixed Decimal. */ |
| 1209 | strcpy (p1, "fixed decimal"); |
| 1210 | break; |
| 1211 | |
| 1212 | case btFloatDec: /* Float Decimal. */ |
| 1213 | strcpy (p1, "float decimal"); |
| 1214 | break; |
| 1215 | |
| 1216 | case btString: /* Varying Length Character String. */ |
| 1217 | strcpy (p1, "string"); |
| 1218 | break; |
| 1219 | |
| 1220 | case btBit: /* Aligned Bit String. */ |
| 1221 | strcpy (p1, "bit"); |
| 1222 | break; |
| 1223 | |
| 1224 | case btPicture: /* Picture. */ |
| 1225 | strcpy (p1, "picture"); |
| 1226 | break; |
| 1227 | |
| 1228 | case btVoid: /* Void. */ |
| 1229 | strcpy (p1, "void"); |
| 1230 | break; |
| 1231 | |
| 1232 | default: |
| 1233 | sprintf (p1, _("Unknown basic type %d"), (int) basic_type); |
| 1234 | break; |
| 1235 | } |
| 1236 | |
| 1237 | p1 += strlen (buffer1); |
| 1238 | |
| 1239 | /* If this is a bitfield, get the bitsize. */ |
| 1240 | if (u.ti.fBitfield) |
| 1241 | { |
| 1242 | int bitsize; |
| 1243 | |
| 1244 | bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]); |
| 1245 | sprintf (p1, " : %d", bitsize); |
| 1246 | p1 += strlen (buffer1); |
| 1247 | } |
| 1248 | |
| 1249 | /* Deal with any qualifiers. */ |
| 1250 | if (qualifiers[0].type != tqNil) |
| 1251 | { |
| 1252 | /* Snarf up any array bounds in the correct order. Arrays |
| 1253 | store 5 successive words in the aux. table: |
| 1254 | word 0 RNDXR to type of the bounds (ie, int) |
| 1255 | word 1 Current file descriptor index |
| 1256 | word 2 low bound |
| 1257 | word 3 high bound (or -1 if []) |
| 1258 | word 4 stride size in bits. */ |
| 1259 | for (i = 0; i < 7; i++) |
| 1260 | { |
| 1261 | if (qualifiers[i].type == tqArray) |
| 1262 | { |
| 1263 | qualifiers[i].low_bound = |
| 1264 | AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]); |
| 1265 | qualifiers[i].high_bound = |
| 1266 | AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]); |
| 1267 | qualifiers[i].stride = |
| 1268 | AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]); |
| 1269 | indx += 5; |
| 1270 | } |
| 1271 | } |
| 1272 | |
| 1273 | /* Now print out the qualifiers. */ |
| 1274 | for (i = 0; i < 6; i++) |
| 1275 | { |
| 1276 | switch (qualifiers[i].type) |
| 1277 | { |
| 1278 | case tqNil: |
| 1279 | case tqMax: |
| 1280 | break; |
| 1281 | |
| 1282 | case tqPtr: |
| 1283 | strcpy (p2, "ptr to "); |
| 1284 | p2 += sizeof ("ptr to ")-1; |
| 1285 | break; |
| 1286 | |
| 1287 | case tqVol: |
| 1288 | strcpy (p2, "volatile "); |
| 1289 | p2 += sizeof ("volatile ")-1; |
| 1290 | break; |
| 1291 | |
| 1292 | case tqFar: |
| 1293 | strcpy (p2, "far "); |
| 1294 | p2 += sizeof ("far ")-1; |
| 1295 | break; |
| 1296 | |
| 1297 | case tqProc: |
| 1298 | strcpy (p2, "func. ret. "); |
| 1299 | p2 += sizeof ("func. ret. "); |
| 1300 | break; |
| 1301 | |
| 1302 | case tqArray: |
| 1303 | { |
| 1304 | int first_array = i; |
| 1305 | int j; |
| 1306 | |
| 1307 | /* Print array bounds reversed (ie, in the order the C |
| 1308 | programmer writes them). C is such a fun language.... */ |
| 1309 | while (i < 5 && qualifiers[i+1].type == tqArray) |
| 1310 | i++; |
| 1311 | |
| 1312 | for (j = i; j >= first_array; j--) |
| 1313 | { |
| 1314 | strcpy (p2, "array ["); |
| 1315 | p2 += sizeof ("array [")-1; |
| 1316 | if (qualifiers[j].low_bound != 0) |
| 1317 | sprintf (p2, |
| 1318 | "%ld:%ld {%ld bits}", |
| 1319 | (long) qualifiers[j].low_bound, |
| 1320 | (long) qualifiers[j].high_bound, |
| 1321 | (long) qualifiers[j].stride); |
| 1322 | |
| 1323 | else if (qualifiers[j].high_bound != -1) |
| 1324 | sprintf (p2, |
| 1325 | "%ld {%ld bits}", |
| 1326 | (long) (qualifiers[j].high_bound + 1), |
| 1327 | (long) (qualifiers[j].stride)); |
| 1328 | |
| 1329 | else |
| 1330 | sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride)); |
| 1331 | |
| 1332 | p2 += strlen (p2); |
| 1333 | strcpy (p2, "] of "); |
| 1334 | p2 += sizeof ("] of ")-1; |
| 1335 | } |
| 1336 | } |
| 1337 | break; |
| 1338 | } |
| 1339 | } |
| 1340 | } |
| 1341 | |
| 1342 | strcpy (p2, buffer1); |
| 1343 | return buffer2; |
| 1344 | } |
| 1345 | |
| 1346 | /* Return information about ECOFF symbol SYMBOL in RET. */ |
| 1347 | |
| 1348 | void |
| 1349 | _bfd_ecoff_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
| 1350 | asymbol *symbol, |
| 1351 | symbol_info *ret) |
| 1352 | { |
| 1353 | bfd_symbol_info (symbol, ret); |
| 1354 | } |
| 1355 | |
| 1356 | /* Return whether this is a local label. */ |
| 1357 | |
| 1358 | bfd_boolean |
| 1359 | _bfd_ecoff_bfd_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
| 1360 | const char *name) |
| 1361 | { |
| 1362 | return name[0] == '$'; |
| 1363 | } |
| 1364 | |
| 1365 | /* Print information about an ECOFF symbol. */ |
| 1366 | |
| 1367 | void |
| 1368 | _bfd_ecoff_print_symbol (bfd *abfd, |
| 1369 | void * filep, |
| 1370 | asymbol *symbol, |
| 1371 | bfd_print_symbol_type how) |
| 1372 | { |
| 1373 | const struct ecoff_debug_swap * const debug_swap |
| 1374 | = &ecoff_backend (abfd)->debug_swap; |
| 1375 | FILE *file = (FILE *)filep; |
| 1376 | |
| 1377 | switch (how) |
| 1378 | { |
| 1379 | case bfd_print_symbol_name: |
| 1380 | fprintf (file, "%s", symbol->name); |
| 1381 | break; |
| 1382 | case bfd_print_symbol_more: |
| 1383 | if (ecoffsymbol (symbol)->local) |
| 1384 | { |
| 1385 | SYMR ecoff_sym; |
| 1386 | |
| 1387 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, |
| 1388 | &ecoff_sym); |
| 1389 | fprintf (file, "ecoff local "); |
| 1390 | fprintf_vma (file, (bfd_vma) ecoff_sym.value); |
| 1391 | fprintf (file, " %x %x", (unsigned) ecoff_sym.st, |
| 1392 | (unsigned) ecoff_sym.sc); |
| 1393 | } |
| 1394 | else |
| 1395 | { |
| 1396 | EXTR ecoff_ext; |
| 1397 | |
| 1398 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, |
| 1399 | &ecoff_ext); |
| 1400 | fprintf (file, "ecoff extern "); |
| 1401 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); |
| 1402 | fprintf (file, " %x %x", (unsigned) ecoff_ext.asym.st, |
| 1403 | (unsigned) ecoff_ext.asym.sc); |
| 1404 | } |
| 1405 | break; |
| 1406 | case bfd_print_symbol_all: |
| 1407 | /* Print out the symbols in a reasonable way. */ |
| 1408 | { |
| 1409 | char type; |
| 1410 | int pos; |
| 1411 | EXTR ecoff_ext; |
| 1412 | char jmptbl; |
| 1413 | char cobol_main; |
| 1414 | char weakext; |
| 1415 | |
| 1416 | if (ecoffsymbol (symbol)->local) |
| 1417 | { |
| 1418 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, |
| 1419 | &ecoff_ext.asym); |
| 1420 | type = 'l'; |
| 1421 | pos = ((((char *) ecoffsymbol (symbol)->native |
| 1422 | - (char *) ecoff_data (abfd)->debug_info.external_sym) |
| 1423 | / debug_swap->external_sym_size) |
| 1424 | + ecoff_data (abfd)->debug_info.symbolic_header.iextMax); |
| 1425 | jmptbl = ' '; |
| 1426 | cobol_main = ' '; |
| 1427 | weakext = ' '; |
| 1428 | } |
| 1429 | else |
| 1430 | { |
| 1431 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, |
| 1432 | &ecoff_ext); |
| 1433 | type = 'e'; |
| 1434 | pos = (((char *) ecoffsymbol (symbol)->native |
| 1435 | - (char *) ecoff_data (abfd)->debug_info.external_ext) |
| 1436 | / debug_swap->external_ext_size); |
| 1437 | jmptbl = ecoff_ext.jmptbl ? 'j' : ' '; |
| 1438 | cobol_main = ecoff_ext.cobol_main ? 'c' : ' '; |
| 1439 | weakext = ecoff_ext.weakext ? 'w' : ' '; |
| 1440 | } |
| 1441 | |
| 1442 | fprintf (file, "[%3d] %c ", |
| 1443 | pos, type); |
| 1444 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); |
| 1445 | fprintf (file, " st %x sc %x indx %x %c%c%c %s", |
| 1446 | (unsigned) ecoff_ext.asym.st, |
| 1447 | (unsigned) ecoff_ext.asym.sc, |
| 1448 | (unsigned) ecoff_ext.asym.index, |
| 1449 | jmptbl, cobol_main, weakext, |
| 1450 | symbol->name); |
| 1451 | |
| 1452 | if (ecoffsymbol (symbol)->fdr != NULL |
| 1453 | && ecoff_ext.asym.index != indexNil) |
| 1454 | { |
| 1455 | FDR *fdr; |
| 1456 | unsigned int indx; |
| 1457 | int bigendian; |
| 1458 | bfd_size_type sym_base; |
| 1459 | union aux_ext *aux_base; |
| 1460 | |
| 1461 | fdr = ecoffsymbol (symbol)->fdr; |
| 1462 | indx = ecoff_ext.asym.index; |
| 1463 | |
| 1464 | /* sym_base is used to map the fdr relative indices which |
| 1465 | appear in the file to the position number which we are |
| 1466 | using. */ |
| 1467 | sym_base = fdr->isymBase; |
| 1468 | if (ecoffsymbol (symbol)->local) |
| 1469 | sym_base += |
| 1470 | ecoff_data (abfd)->debug_info.symbolic_header.iextMax; |
| 1471 | |
| 1472 | /* aux_base is the start of the aux entries for this file; |
| 1473 | asym.index is an offset from this. */ |
| 1474 | aux_base = (ecoff_data (abfd)->debug_info.external_aux |
| 1475 | + fdr->iauxBase); |
| 1476 | |
| 1477 | /* The aux entries are stored in host byte order; the |
| 1478 | order is indicated by a bit in the fdr. */ |
| 1479 | bigendian = fdr->fBigendian; |
| 1480 | |
| 1481 | /* This switch is basically from gcc/mips-tdump.c. */ |
| 1482 | switch (ecoff_ext.asym.st) |
| 1483 | { |
| 1484 | case stNil: |
| 1485 | case stLabel: |
| 1486 | break; |
| 1487 | |
| 1488 | case stFile: |
| 1489 | case stBlock: |
| 1490 | fprintf (file, _("\n End+1 symbol: %ld"), |
| 1491 | (long) (indx + sym_base)); |
| 1492 | break; |
| 1493 | |
| 1494 | case stEnd: |
| 1495 | if (ecoff_ext.asym.sc == scText |
| 1496 | || ecoff_ext.asym.sc == scInfo) |
| 1497 | fprintf (file, _("\n First symbol: %ld"), |
| 1498 | (long) (indx + sym_base)); |
| 1499 | else |
| 1500 | fprintf (file, _("\n First symbol: %ld"), |
| 1501 | ((long) |
| 1502 | (AUX_GET_ISYM (bigendian, |
| 1503 | &aux_base[ecoff_ext.asym.index]) |
| 1504 | + sym_base))); |
| 1505 | break; |
| 1506 | |
| 1507 | case stProc: |
| 1508 | case stStaticProc: |
| 1509 | if (ECOFF_IS_STAB (&ecoff_ext.asym)) |
| 1510 | ; |
| 1511 | else if (ecoffsymbol (symbol)->local) |
| 1512 | fprintf (file, _("\n End+1 symbol: %-7ld Type: %s"), |
| 1513 | ((long) |
| 1514 | (AUX_GET_ISYM (bigendian, |
| 1515 | &aux_base[ecoff_ext.asym.index]) |
| 1516 | + sym_base)), |
| 1517 | ecoff_type_to_string (abfd, fdr, indx + 1)); |
| 1518 | else |
| 1519 | fprintf (file, _("\n Local symbol: %ld"), |
| 1520 | ((long) indx |
| 1521 | + (long) sym_base |
| 1522 | + (ecoff_data (abfd) |
| 1523 | ->debug_info.symbolic_header.iextMax))); |
| 1524 | break; |
| 1525 | |
| 1526 | case stStruct: |
| 1527 | fprintf (file, _("\n struct; End+1 symbol: %ld"), |
| 1528 | (long) (indx + sym_base)); |
| 1529 | break; |
| 1530 | |
| 1531 | case stUnion: |
| 1532 | fprintf (file, _("\n union; End+1 symbol: %ld"), |
| 1533 | (long) (indx + sym_base)); |
| 1534 | break; |
| 1535 | |
| 1536 | case stEnum: |
| 1537 | fprintf (file, _("\n enum; End+1 symbol: %ld"), |
| 1538 | (long) (indx + sym_base)); |
| 1539 | break; |
| 1540 | |
| 1541 | default: |
| 1542 | if (! ECOFF_IS_STAB (&ecoff_ext.asym)) |
| 1543 | fprintf (file, _("\n Type: %s"), |
| 1544 | ecoff_type_to_string (abfd, fdr, indx)); |
| 1545 | break; |
| 1546 | } |
| 1547 | } |
| 1548 | } |
| 1549 | break; |
| 1550 | } |
| 1551 | } |
| 1552 | \f |
| 1553 | /* Read in the relocs for a section. */ |
| 1554 | |
| 1555 | static bfd_boolean |
| 1556 | ecoff_slurp_reloc_table (bfd *abfd, |
| 1557 | asection *section, |
| 1558 | asymbol **symbols) |
| 1559 | { |
| 1560 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 1561 | arelent *internal_relocs; |
| 1562 | bfd_size_type external_reloc_size; |
| 1563 | bfd_size_type amt; |
| 1564 | char *external_relocs; |
| 1565 | arelent *rptr; |
| 1566 | unsigned int i; |
| 1567 | |
| 1568 | if (section->relocation != NULL |
| 1569 | || section->reloc_count == 0 |
| 1570 | || (section->flags & SEC_CONSTRUCTOR) != 0) |
| 1571 | return TRUE; |
| 1572 | |
| 1573 | if (! _bfd_ecoff_slurp_symbol_table (abfd)) |
| 1574 | return FALSE; |
| 1575 | |
| 1576 | amt = section->reloc_count; |
| 1577 | amt *= sizeof (arelent); |
| 1578 | internal_relocs = (arelent *) bfd_alloc (abfd, amt); |
| 1579 | |
| 1580 | external_reloc_size = backend->external_reloc_size; |
| 1581 | amt = external_reloc_size * section->reloc_count; |
| 1582 | external_relocs = (char *) bfd_alloc (abfd, amt); |
| 1583 | if (internal_relocs == NULL || external_relocs == NULL) |
| 1584 | return FALSE; |
| 1585 | if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0) |
| 1586 | return FALSE; |
| 1587 | if (bfd_bread (external_relocs, amt, abfd) != amt) |
| 1588 | return FALSE; |
| 1589 | |
| 1590 | for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++) |
| 1591 | { |
| 1592 | struct internal_reloc intern; |
| 1593 | |
| 1594 | (*backend->swap_reloc_in) (abfd, |
| 1595 | external_relocs + i * external_reloc_size, |
| 1596 | &intern); |
| 1597 | |
| 1598 | if (intern.r_extern) |
| 1599 | { |
| 1600 | /* r_symndx is an index into the external symbols. */ |
| 1601 | BFD_ASSERT (intern.r_symndx >= 0 |
| 1602 | && (intern.r_symndx |
| 1603 | < (ecoff_data (abfd) |
| 1604 | ->debug_info.symbolic_header.iextMax))); |
| 1605 | rptr->sym_ptr_ptr = symbols + intern.r_symndx; |
| 1606 | rptr->addend = 0; |
| 1607 | } |
| 1608 | else if (intern.r_symndx == RELOC_SECTION_NONE |
| 1609 | || intern.r_symndx == RELOC_SECTION_ABS) |
| 1610 | { |
| 1611 | rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
| 1612 | rptr->addend = 0; |
| 1613 | } |
| 1614 | else |
| 1615 | { |
| 1616 | const char *sec_name; |
| 1617 | asection *sec; |
| 1618 | |
| 1619 | /* r_symndx is a section key. */ |
| 1620 | switch (intern.r_symndx) |
| 1621 | { |
| 1622 | case RELOC_SECTION_TEXT: sec_name = _TEXT; break; |
| 1623 | case RELOC_SECTION_RDATA: sec_name = _RDATA; break; |
| 1624 | case RELOC_SECTION_DATA: sec_name = _DATA; break; |
| 1625 | case RELOC_SECTION_SDATA: sec_name = _SDATA; break; |
| 1626 | case RELOC_SECTION_SBSS: sec_name = _SBSS; break; |
| 1627 | case RELOC_SECTION_BSS: sec_name = _BSS; break; |
| 1628 | case RELOC_SECTION_INIT: sec_name = _INIT; break; |
| 1629 | case RELOC_SECTION_LIT8: sec_name = _LIT8; break; |
| 1630 | case RELOC_SECTION_LIT4: sec_name = _LIT4; break; |
| 1631 | case RELOC_SECTION_XDATA: sec_name = _XDATA; break; |
| 1632 | case RELOC_SECTION_PDATA: sec_name = _PDATA; break; |
| 1633 | case RELOC_SECTION_FINI: sec_name = _FINI; break; |
| 1634 | case RELOC_SECTION_LITA: sec_name = _LITA; break; |
| 1635 | case RELOC_SECTION_RCONST: sec_name = _RCONST; break; |
| 1636 | default: abort (); |
| 1637 | } |
| 1638 | |
| 1639 | sec = bfd_get_section_by_name (abfd, sec_name); |
| 1640 | if (sec == NULL) |
| 1641 | abort (); |
| 1642 | rptr->sym_ptr_ptr = sec->symbol_ptr_ptr; |
| 1643 | |
| 1644 | rptr->addend = - bfd_get_section_vma (abfd, sec); |
| 1645 | } |
| 1646 | |
| 1647 | rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section); |
| 1648 | |
| 1649 | /* Let the backend select the howto field and do any other |
| 1650 | required processing. */ |
| 1651 | (*backend->adjust_reloc_in) (abfd, &intern, rptr); |
| 1652 | } |
| 1653 | |
| 1654 | bfd_release (abfd, external_relocs); |
| 1655 | |
| 1656 | section->relocation = internal_relocs; |
| 1657 | |
| 1658 | return TRUE; |
| 1659 | } |
| 1660 | |
| 1661 | /* Get a canonical list of relocs. */ |
| 1662 | |
| 1663 | long |
| 1664 | _bfd_ecoff_canonicalize_reloc (bfd *abfd, |
| 1665 | asection *section, |
| 1666 | arelent **relptr, |
| 1667 | asymbol **symbols) |
| 1668 | { |
| 1669 | unsigned int count; |
| 1670 | |
| 1671 | if (section->flags & SEC_CONSTRUCTOR) |
| 1672 | { |
| 1673 | arelent_chain *chain; |
| 1674 | |
| 1675 | /* This section has relocs made up by us, not the file, so take |
| 1676 | them out of their chain and place them into the data area |
| 1677 | provided. */ |
| 1678 | for (count = 0, chain = section->constructor_chain; |
| 1679 | count < section->reloc_count; |
| 1680 | count++, chain = chain->next) |
| 1681 | *relptr++ = &chain->relent; |
| 1682 | } |
| 1683 | else |
| 1684 | { |
| 1685 | arelent *tblptr; |
| 1686 | |
| 1687 | if (! ecoff_slurp_reloc_table (abfd, section, symbols)) |
| 1688 | return -1; |
| 1689 | |
| 1690 | tblptr = section->relocation; |
| 1691 | |
| 1692 | for (count = 0; count < section->reloc_count; count++) |
| 1693 | *relptr++ = tblptr++; |
| 1694 | } |
| 1695 | |
| 1696 | *relptr = NULL; |
| 1697 | |
| 1698 | return section->reloc_count; |
| 1699 | } |
| 1700 | \f |
| 1701 | /* Provided a BFD, a section and an offset into the section, calculate |
| 1702 | and return the name of the source file and the line nearest to the |
| 1703 | wanted location. */ |
| 1704 | |
| 1705 | bfd_boolean |
| 1706 | _bfd_ecoff_find_nearest_line (bfd *abfd, |
| 1707 | asection *section, |
| 1708 | asymbol **ignore_symbols ATTRIBUTE_UNUSED, |
| 1709 | bfd_vma offset, |
| 1710 | const char **filename_ptr, |
| 1711 | const char **functionname_ptr, |
| 1712 | unsigned int *retline_ptr) |
| 1713 | { |
| 1714 | const struct ecoff_debug_swap * const debug_swap |
| 1715 | = &ecoff_backend (abfd)->debug_swap; |
| 1716 | struct ecoff_debug_info * const debug_info = &ecoff_data (abfd)->debug_info; |
| 1717 | struct ecoff_find_line *line_info; |
| 1718 | |
| 1719 | /* Make sure we have the FDR's. */ |
| 1720 | if (! _bfd_ecoff_slurp_symbolic_info (abfd, NULL, debug_info) |
| 1721 | || bfd_get_symcount (abfd) == 0) |
| 1722 | return FALSE; |
| 1723 | |
| 1724 | if (ecoff_data (abfd)->find_line_info == NULL) |
| 1725 | { |
| 1726 | bfd_size_type amt = sizeof (struct ecoff_find_line); |
| 1727 | |
| 1728 | ecoff_data (abfd)->find_line_info = |
| 1729 | (struct ecoff_find_line *) bfd_zalloc (abfd, amt); |
| 1730 | if (ecoff_data (abfd)->find_line_info == NULL) |
| 1731 | return FALSE; |
| 1732 | } |
| 1733 | line_info = ecoff_data (abfd)->find_line_info; |
| 1734 | |
| 1735 | return _bfd_ecoff_locate_line (abfd, section, offset, debug_info, |
| 1736 | debug_swap, line_info, filename_ptr, |
| 1737 | functionname_ptr, retline_ptr); |
| 1738 | } |
| 1739 | \f |
| 1740 | /* Copy private BFD data. This is called by objcopy and strip. We |
| 1741 | use it to copy the ECOFF debugging information from one BFD to the |
| 1742 | other. It would be theoretically possible to represent the ECOFF |
| 1743 | debugging information in the symbol table. However, it would be a |
| 1744 | lot of work, and there would be little gain (gas, gdb, and ld |
| 1745 | already access the ECOFF debugging information via the |
| 1746 | ecoff_debug_info structure, and that structure would have to be |
| 1747 | retained in order to support ECOFF debugging in MIPS ELF). |
| 1748 | |
| 1749 | The debugging information for the ECOFF external symbols comes from |
| 1750 | the symbol table, so this function only handles the other debugging |
| 1751 | information. */ |
| 1752 | |
| 1753 | bfd_boolean |
| 1754 | _bfd_ecoff_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
| 1755 | { |
| 1756 | struct ecoff_debug_info *iinfo = &ecoff_data (ibfd)->debug_info; |
| 1757 | struct ecoff_debug_info *oinfo = &ecoff_data (obfd)->debug_info; |
| 1758 | int i; |
| 1759 | asymbol **sym_ptr_ptr; |
| 1760 | size_t c; |
| 1761 | bfd_boolean local; |
| 1762 | |
| 1763 | /* We only want to copy information over if both BFD's use ECOFF |
| 1764 | format. */ |
| 1765 | if (bfd_get_flavour (ibfd) != bfd_target_ecoff_flavour |
| 1766 | || bfd_get_flavour (obfd) != bfd_target_ecoff_flavour) |
| 1767 | return TRUE; |
| 1768 | |
| 1769 | /* Copy the GP value and the register masks. */ |
| 1770 | ecoff_data (obfd)->gp = ecoff_data (ibfd)->gp; |
| 1771 | ecoff_data (obfd)->gprmask = ecoff_data (ibfd)->gprmask; |
| 1772 | ecoff_data (obfd)->fprmask = ecoff_data (ibfd)->fprmask; |
| 1773 | for (i = 0; i < 3; i++) |
| 1774 | ecoff_data (obfd)->cprmask[i] = ecoff_data (ibfd)->cprmask[i]; |
| 1775 | |
| 1776 | /* Copy the version stamp. */ |
| 1777 | oinfo->symbolic_header.vstamp = iinfo->symbolic_header.vstamp; |
| 1778 | |
| 1779 | /* If there are no symbols, don't copy any debugging information. */ |
| 1780 | c = bfd_get_symcount (obfd); |
| 1781 | sym_ptr_ptr = bfd_get_outsymbols (obfd); |
| 1782 | if (c == 0 || sym_ptr_ptr == NULL) |
| 1783 | return TRUE; |
| 1784 | |
| 1785 | /* See if there are any local symbols. */ |
| 1786 | local = FALSE; |
| 1787 | for (; c > 0; c--, sym_ptr_ptr++) |
| 1788 | { |
| 1789 | if (ecoffsymbol (*sym_ptr_ptr)->local) |
| 1790 | { |
| 1791 | local = TRUE; |
| 1792 | break; |
| 1793 | } |
| 1794 | } |
| 1795 | |
| 1796 | if (local) |
| 1797 | { |
| 1798 | /* There are some local symbols. We just bring over all the |
| 1799 | debugging information. FIXME: This is not quite the right |
| 1800 | thing to do. If the user has asked us to discard all |
| 1801 | debugging information, then we are probably going to wind up |
| 1802 | keeping it because there will probably be some local symbol |
| 1803 | which objcopy did not discard. We should actually break |
| 1804 | apart the debugging information and only keep that which |
| 1805 | applies to the symbols we want to keep. */ |
| 1806 | oinfo->symbolic_header.ilineMax = iinfo->symbolic_header.ilineMax; |
| 1807 | oinfo->symbolic_header.cbLine = iinfo->symbolic_header.cbLine; |
| 1808 | oinfo->line = iinfo->line; |
| 1809 | |
| 1810 | oinfo->symbolic_header.idnMax = iinfo->symbolic_header.idnMax; |
| 1811 | oinfo->external_dnr = iinfo->external_dnr; |
| 1812 | |
| 1813 | oinfo->symbolic_header.ipdMax = iinfo->symbolic_header.ipdMax; |
| 1814 | oinfo->external_pdr = iinfo->external_pdr; |
| 1815 | |
| 1816 | oinfo->symbolic_header.isymMax = iinfo->symbolic_header.isymMax; |
| 1817 | oinfo->external_sym = iinfo->external_sym; |
| 1818 | |
| 1819 | oinfo->symbolic_header.ioptMax = iinfo->symbolic_header.ioptMax; |
| 1820 | oinfo->external_opt = iinfo->external_opt; |
| 1821 | |
| 1822 | oinfo->symbolic_header.iauxMax = iinfo->symbolic_header.iauxMax; |
| 1823 | oinfo->external_aux = iinfo->external_aux; |
| 1824 | |
| 1825 | oinfo->symbolic_header.issMax = iinfo->symbolic_header.issMax; |
| 1826 | oinfo->ss = iinfo->ss; |
| 1827 | |
| 1828 | oinfo->symbolic_header.ifdMax = iinfo->symbolic_header.ifdMax; |
| 1829 | oinfo->external_fdr = iinfo->external_fdr; |
| 1830 | |
| 1831 | oinfo->symbolic_header.crfd = iinfo->symbolic_header.crfd; |
| 1832 | oinfo->external_rfd = iinfo->external_rfd; |
| 1833 | } |
| 1834 | else |
| 1835 | { |
| 1836 | /* We are discarding all the local symbol information. Look |
| 1837 | through the external symbols and remove all references to FDR |
| 1838 | or aux information. */ |
| 1839 | c = bfd_get_symcount (obfd); |
| 1840 | sym_ptr_ptr = bfd_get_outsymbols (obfd); |
| 1841 | for (; c > 0; c--, sym_ptr_ptr++) |
| 1842 | { |
| 1843 | EXTR esym; |
| 1844 | |
| 1845 | (*(ecoff_backend (obfd)->debug_swap.swap_ext_in)) |
| 1846 | (obfd, ecoffsymbol (*sym_ptr_ptr)->native, &esym); |
| 1847 | esym.ifd = ifdNil; |
| 1848 | esym.asym.index = indexNil; |
| 1849 | (*(ecoff_backend (obfd)->debug_swap.swap_ext_out)) |
| 1850 | (obfd, &esym, ecoffsymbol (*sym_ptr_ptr)->native); |
| 1851 | } |
| 1852 | } |
| 1853 | |
| 1854 | return TRUE; |
| 1855 | } |
| 1856 | \f |
| 1857 | /* Set the architecture. The supported architecture is stored in the |
| 1858 | backend pointer. We always set the architecture anyhow, since many |
| 1859 | callers ignore the return value. */ |
| 1860 | |
| 1861 | bfd_boolean |
| 1862 | _bfd_ecoff_set_arch_mach (bfd *abfd, |
| 1863 | enum bfd_architecture arch, |
| 1864 | unsigned long machine) |
| 1865 | { |
| 1866 | bfd_default_set_arch_mach (abfd, arch, machine); |
| 1867 | return arch == ecoff_backend (abfd)->arch; |
| 1868 | } |
| 1869 | |
| 1870 | /* Get the size of the section headers. */ |
| 1871 | |
| 1872 | int |
| 1873 | _bfd_ecoff_sizeof_headers (bfd *abfd, |
| 1874 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
| 1875 | { |
| 1876 | asection *current; |
| 1877 | int c; |
| 1878 | int ret; |
| 1879 | |
| 1880 | c = 0; |
| 1881 | for (current = abfd->sections; |
| 1882 | current != NULL; |
| 1883 | current = current->next) |
| 1884 | ++c; |
| 1885 | |
| 1886 | ret = (bfd_coff_filhsz (abfd) |
| 1887 | + bfd_coff_aoutsz (abfd) |
| 1888 | + c * bfd_coff_scnhsz (abfd)); |
| 1889 | return (int) BFD_ALIGN (ret, 16); |
| 1890 | } |
| 1891 | |
| 1892 | /* Get the contents of a section. */ |
| 1893 | |
| 1894 | bfd_boolean |
| 1895 | _bfd_ecoff_get_section_contents (bfd *abfd, |
| 1896 | asection *section, |
| 1897 | void * location, |
| 1898 | file_ptr offset, |
| 1899 | bfd_size_type count) |
| 1900 | { |
| 1901 | return _bfd_generic_get_section_contents (abfd, section, location, |
| 1902 | offset, count); |
| 1903 | } |
| 1904 | |
| 1905 | /* Sort sections by VMA, but put SEC_ALLOC sections first. This is |
| 1906 | called via qsort. */ |
| 1907 | |
| 1908 | static int |
| 1909 | ecoff_sort_hdrs (const void * arg1, const void * arg2) |
| 1910 | { |
| 1911 | const asection *hdr1 = *(const asection **) arg1; |
| 1912 | const asection *hdr2 = *(const asection **) arg2; |
| 1913 | |
| 1914 | if ((hdr1->flags & SEC_ALLOC) != 0) |
| 1915 | { |
| 1916 | if ((hdr2->flags & SEC_ALLOC) == 0) |
| 1917 | return -1; |
| 1918 | } |
| 1919 | else |
| 1920 | { |
| 1921 | if ((hdr2->flags & SEC_ALLOC) != 0) |
| 1922 | return 1; |
| 1923 | } |
| 1924 | if (hdr1->vma < hdr2->vma) |
| 1925 | return -1; |
| 1926 | else if (hdr1->vma > hdr2->vma) |
| 1927 | return 1; |
| 1928 | else |
| 1929 | return 0; |
| 1930 | } |
| 1931 | |
| 1932 | /* Calculate the file position for each section, and set |
| 1933 | reloc_filepos. */ |
| 1934 | |
| 1935 | static bfd_boolean |
| 1936 | ecoff_compute_section_file_positions (bfd *abfd) |
| 1937 | { |
| 1938 | file_ptr sofar, file_sofar; |
| 1939 | asection **sorted_hdrs; |
| 1940 | asection *current; |
| 1941 | unsigned int i; |
| 1942 | file_ptr old_sofar; |
| 1943 | bfd_boolean rdata_in_text; |
| 1944 | bfd_boolean first_data, first_nonalloc; |
| 1945 | const bfd_vma round = ecoff_backend (abfd)->round; |
| 1946 | bfd_size_type amt; |
| 1947 | |
| 1948 | sofar = _bfd_ecoff_sizeof_headers (abfd, NULL); |
| 1949 | file_sofar = sofar; |
| 1950 | |
| 1951 | /* Sort the sections by VMA. */ |
| 1952 | amt = abfd->section_count; |
| 1953 | amt *= sizeof (asection *); |
| 1954 | sorted_hdrs = (asection **) bfd_malloc (amt); |
| 1955 | if (sorted_hdrs == NULL) |
| 1956 | return FALSE; |
| 1957 | for (current = abfd->sections, i = 0; |
| 1958 | current != NULL; |
| 1959 | current = current->next, i++) |
| 1960 | sorted_hdrs[i] = current; |
| 1961 | BFD_ASSERT (i == abfd->section_count); |
| 1962 | |
| 1963 | qsort (sorted_hdrs, abfd->section_count, sizeof (asection *), |
| 1964 | ecoff_sort_hdrs); |
| 1965 | |
| 1966 | /* Some versions of the OSF linker put the .rdata section in the |
| 1967 | text segment, and some do not. */ |
| 1968 | rdata_in_text = ecoff_backend (abfd)->rdata_in_text; |
| 1969 | if (rdata_in_text) |
| 1970 | { |
| 1971 | for (i = 0; i < abfd->section_count; i++) |
| 1972 | { |
| 1973 | current = sorted_hdrs[i]; |
| 1974 | if (streq (current->name, _RDATA)) |
| 1975 | break; |
| 1976 | if ((current->flags & SEC_CODE) == 0 |
| 1977 | && ! streq (current->name, _PDATA) |
| 1978 | && ! streq (current->name, _RCONST)) |
| 1979 | { |
| 1980 | rdata_in_text = FALSE; |
| 1981 | break; |
| 1982 | } |
| 1983 | } |
| 1984 | } |
| 1985 | ecoff_data (abfd)->rdata_in_text = rdata_in_text; |
| 1986 | |
| 1987 | first_data = TRUE; |
| 1988 | first_nonalloc = TRUE; |
| 1989 | for (i = 0; i < abfd->section_count; i++) |
| 1990 | { |
| 1991 | unsigned int alignment_power; |
| 1992 | |
| 1993 | current = sorted_hdrs[i]; |
| 1994 | |
| 1995 | /* For the Alpha ECOFF .pdata section the lnnoptr field is |
| 1996 | supposed to indicate the number of .pdata entries that are |
| 1997 | really in the section. Each entry is 8 bytes. We store this |
| 1998 | away in line_filepos before increasing the section size. */ |
| 1999 | if (streq (current->name, _PDATA)) |
| 2000 | current->line_filepos = current->size / 8; |
| 2001 | |
| 2002 | alignment_power = current->alignment_power; |
| 2003 | |
| 2004 | /* On Ultrix, the data sections in an executable file must be |
| 2005 | aligned to a page boundary within the file. This does not |
| 2006 | affect the section size, though. FIXME: Does this work for |
| 2007 | other platforms? It requires some modification for the |
| 2008 | Alpha, because .rdata on the Alpha goes with the text, not |
| 2009 | the data. */ |
| 2010 | if ((abfd->flags & EXEC_P) != 0 |
| 2011 | && (abfd->flags & D_PAGED) != 0 |
| 2012 | && ! first_data |
| 2013 | && (current->flags & SEC_CODE) == 0 |
| 2014 | && (! rdata_in_text |
| 2015 | || ! streq (current->name, _RDATA)) |
| 2016 | && ! streq (current->name, _PDATA) |
| 2017 | && ! streq (current->name, _RCONST)) |
| 2018 | { |
| 2019 | sofar = (sofar + round - 1) &~ (round - 1); |
| 2020 | file_sofar = (file_sofar + round - 1) &~ (round - 1); |
| 2021 | first_data = FALSE; |
| 2022 | } |
| 2023 | else if (streq (current->name, _LIB)) |
| 2024 | { |
| 2025 | /* On Irix 4, the location of contents of the .lib section |
| 2026 | from a shared library section is also rounded up to a |
| 2027 | page boundary. */ |
| 2028 | |
| 2029 | sofar = (sofar + round - 1) &~ (round - 1); |
| 2030 | file_sofar = (file_sofar + round - 1) &~ (round - 1); |
| 2031 | } |
| 2032 | else if (first_nonalloc |
| 2033 | && (current->flags & SEC_ALLOC) == 0 |
| 2034 | && (abfd->flags & D_PAGED) != 0) |
| 2035 | { |
| 2036 | /* Skip up to the next page for an unallocated section, such |
| 2037 | as the .comment section on the Alpha. This leaves room |
| 2038 | for the .bss section. */ |
| 2039 | first_nonalloc = FALSE; |
| 2040 | sofar = (sofar + round - 1) &~ (round - 1); |
| 2041 | file_sofar = (file_sofar + round - 1) &~ (round - 1); |
| 2042 | } |
| 2043 | |
| 2044 | /* Align the sections in the file to the same boundary on |
| 2045 | which they are aligned in virtual memory. */ |
| 2046 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); |
| 2047 | if ((current->flags & SEC_HAS_CONTENTS) != 0) |
| 2048 | file_sofar = BFD_ALIGN (file_sofar, 1 << alignment_power); |
| 2049 | |
| 2050 | if ((abfd->flags & D_PAGED) != 0 |
| 2051 | && (current->flags & SEC_ALLOC) != 0) |
| 2052 | { |
| 2053 | sofar += (current->vma - sofar) % round; |
| 2054 | if ((current->flags & SEC_HAS_CONTENTS) != 0) |
| 2055 | file_sofar += (current->vma - file_sofar) % round; |
| 2056 | } |
| 2057 | |
| 2058 | if ((current->flags & (SEC_HAS_CONTENTS | SEC_LOAD)) != 0) |
| 2059 | current->filepos = file_sofar; |
| 2060 | |
| 2061 | sofar += current->size; |
| 2062 | if ((current->flags & SEC_HAS_CONTENTS) != 0) |
| 2063 | file_sofar += current->size; |
| 2064 | |
| 2065 | /* Make sure that this section is of the right size too. */ |
| 2066 | old_sofar = sofar; |
| 2067 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); |
| 2068 | if ((current->flags & SEC_HAS_CONTENTS) != 0) |
| 2069 | file_sofar = BFD_ALIGN (file_sofar, 1 << alignment_power); |
| 2070 | current->size += sofar - old_sofar; |
| 2071 | } |
| 2072 | |
| 2073 | free (sorted_hdrs); |
| 2074 | sorted_hdrs = NULL; |
| 2075 | |
| 2076 | ecoff_data (abfd)->reloc_filepos = file_sofar; |
| 2077 | |
| 2078 | return TRUE; |
| 2079 | } |
| 2080 | |
| 2081 | /* Determine the location of the relocs for all the sections in the |
| 2082 | output file, as well as the location of the symbolic debugging |
| 2083 | information. */ |
| 2084 | |
| 2085 | static bfd_size_type |
| 2086 | ecoff_compute_reloc_file_positions (bfd *abfd) |
| 2087 | { |
| 2088 | const bfd_size_type external_reloc_size = |
| 2089 | ecoff_backend (abfd)->external_reloc_size; |
| 2090 | file_ptr reloc_base; |
| 2091 | bfd_size_type reloc_size; |
| 2092 | asection *current; |
| 2093 | file_ptr sym_base; |
| 2094 | |
| 2095 | if (! abfd->output_has_begun) |
| 2096 | { |
| 2097 | if (! ecoff_compute_section_file_positions (abfd)) |
| 2098 | abort (); |
| 2099 | abfd->output_has_begun = TRUE; |
| 2100 | } |
| 2101 | |
| 2102 | reloc_base = ecoff_data (abfd)->reloc_filepos; |
| 2103 | |
| 2104 | reloc_size = 0; |
| 2105 | for (current = abfd->sections; |
| 2106 | current != NULL; |
| 2107 | current = current->next) |
| 2108 | { |
| 2109 | if (current->reloc_count == 0) |
| 2110 | current->rel_filepos = 0; |
| 2111 | else |
| 2112 | { |
| 2113 | bfd_size_type relsize; |
| 2114 | |
| 2115 | current->rel_filepos = reloc_base; |
| 2116 | relsize = current->reloc_count * external_reloc_size; |
| 2117 | reloc_size += relsize; |
| 2118 | reloc_base += relsize; |
| 2119 | } |
| 2120 | } |
| 2121 | |
| 2122 | sym_base = ecoff_data (abfd)->reloc_filepos + reloc_size; |
| 2123 | |
| 2124 | /* At least on Ultrix, the symbol table of an executable file must |
| 2125 | be aligned to a page boundary. FIXME: Is this true on other |
| 2126 | platforms? */ |
| 2127 | if ((abfd->flags & EXEC_P) != 0 |
| 2128 | && (abfd->flags & D_PAGED) != 0) |
| 2129 | sym_base = ((sym_base + ecoff_backend (abfd)->round - 1) |
| 2130 | &~ (ecoff_backend (abfd)->round - 1)); |
| 2131 | |
| 2132 | ecoff_data (abfd)->sym_filepos = sym_base; |
| 2133 | |
| 2134 | return reloc_size; |
| 2135 | } |
| 2136 | |
| 2137 | /* Set the contents of a section. */ |
| 2138 | |
| 2139 | bfd_boolean |
| 2140 | _bfd_ecoff_set_section_contents (bfd *abfd, |
| 2141 | asection *section, |
| 2142 | const void * location, |
| 2143 | file_ptr offset, |
| 2144 | bfd_size_type count) |
| 2145 | { |
| 2146 | file_ptr pos; |
| 2147 | |
| 2148 | /* This must be done first, because bfd_set_section_contents is |
| 2149 | going to set output_has_begun to TRUE. */ |
| 2150 | if (! abfd->output_has_begun |
| 2151 | && ! ecoff_compute_section_file_positions (abfd)) |
| 2152 | return FALSE; |
| 2153 | |
| 2154 | /* Handle the .lib section specially so that Irix 4 shared libraries |
| 2155 | work out. See coff_set_section_contents in coffcode.h. */ |
| 2156 | if (streq (section->name, _LIB)) |
| 2157 | { |
| 2158 | bfd_byte *rec, *recend; |
| 2159 | |
| 2160 | rec = (bfd_byte *) location; |
| 2161 | recend = rec + count; |
| 2162 | while (rec < recend) |
| 2163 | { |
| 2164 | ++section->lma; |
| 2165 | rec += bfd_get_32 (abfd, rec) * 4; |
| 2166 | } |
| 2167 | |
| 2168 | BFD_ASSERT (rec == recend); |
| 2169 | } |
| 2170 | |
| 2171 | if (count == 0) |
| 2172 | return TRUE; |
| 2173 | |
| 2174 | pos = section->filepos + offset; |
| 2175 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 |
| 2176 | || bfd_bwrite (location, count, abfd) != count) |
| 2177 | return FALSE; |
| 2178 | |
| 2179 | return TRUE; |
| 2180 | } |
| 2181 | |
| 2182 | /* Get the GP value for an ECOFF file. This is a hook used by |
| 2183 | nlmconv. */ |
| 2184 | |
| 2185 | bfd_vma |
| 2186 | bfd_ecoff_get_gp_value (bfd *abfd) |
| 2187 | { |
| 2188 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour |
| 2189 | || bfd_get_format (abfd) != bfd_object) |
| 2190 | { |
| 2191 | bfd_set_error (bfd_error_invalid_operation); |
| 2192 | return 0; |
| 2193 | } |
| 2194 | |
| 2195 | return ecoff_data (abfd)->gp; |
| 2196 | } |
| 2197 | |
| 2198 | /* Set the GP value for an ECOFF file. This is a hook used by the |
| 2199 | assembler. */ |
| 2200 | |
| 2201 | bfd_boolean |
| 2202 | bfd_ecoff_set_gp_value (bfd *abfd, bfd_vma gp_value) |
| 2203 | { |
| 2204 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour |
| 2205 | || bfd_get_format (abfd) != bfd_object) |
| 2206 | { |
| 2207 | bfd_set_error (bfd_error_invalid_operation); |
| 2208 | return FALSE; |
| 2209 | } |
| 2210 | |
| 2211 | ecoff_data (abfd)->gp = gp_value; |
| 2212 | |
| 2213 | return TRUE; |
| 2214 | } |
| 2215 | |
| 2216 | /* Set the register masks for an ECOFF file. This is a hook used by |
| 2217 | the assembler. */ |
| 2218 | |
| 2219 | bfd_boolean |
| 2220 | bfd_ecoff_set_regmasks (bfd *abfd, |
| 2221 | unsigned long gprmask, |
| 2222 | unsigned long fprmask, |
| 2223 | unsigned long *cprmask) |
| 2224 | { |
| 2225 | ecoff_data_type *tdata; |
| 2226 | |
| 2227 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour |
| 2228 | || bfd_get_format (abfd) != bfd_object) |
| 2229 | { |
| 2230 | bfd_set_error (bfd_error_invalid_operation); |
| 2231 | return FALSE; |
| 2232 | } |
| 2233 | |
| 2234 | tdata = ecoff_data (abfd); |
| 2235 | tdata->gprmask = gprmask; |
| 2236 | tdata->fprmask = fprmask; |
| 2237 | if (cprmask != NULL) |
| 2238 | { |
| 2239 | int i; |
| 2240 | |
| 2241 | for (i = 0; i < 3; i++) |
| 2242 | tdata->cprmask[i] = cprmask[i]; |
| 2243 | } |
| 2244 | |
| 2245 | return TRUE; |
| 2246 | } |
| 2247 | |
| 2248 | /* Get ECOFF EXTR information for an external symbol. This function |
| 2249 | is passed to bfd_ecoff_debug_externals. */ |
| 2250 | |
| 2251 | static bfd_boolean |
| 2252 | ecoff_get_extr (asymbol *sym, EXTR *esym) |
| 2253 | { |
| 2254 | ecoff_symbol_type *ecoff_sym_ptr; |
| 2255 | bfd *input_bfd; |
| 2256 | |
| 2257 | if (bfd_asymbol_flavour (sym) != bfd_target_ecoff_flavour |
| 2258 | || ecoffsymbol (sym)->native == NULL) |
| 2259 | { |
| 2260 | /* Don't include debugging, local, or section symbols. */ |
| 2261 | if ((sym->flags & BSF_DEBUGGING) != 0 |
| 2262 | || (sym->flags & BSF_LOCAL) != 0 |
| 2263 | || (sym->flags & BSF_SECTION_SYM) != 0) |
| 2264 | return FALSE; |
| 2265 | |
| 2266 | esym->jmptbl = 0; |
| 2267 | esym->cobol_main = 0; |
| 2268 | esym->weakext = (sym->flags & BSF_WEAK) != 0; |
| 2269 | esym->reserved = 0; |
| 2270 | esym->ifd = ifdNil; |
| 2271 | /* FIXME: we can do better than this for st and sc. */ |
| 2272 | esym->asym.st = stGlobal; |
| 2273 | esym->asym.sc = scAbs; |
| 2274 | esym->asym.reserved = 0; |
| 2275 | esym->asym.index = indexNil; |
| 2276 | return TRUE; |
| 2277 | } |
| 2278 | |
| 2279 | ecoff_sym_ptr = ecoffsymbol (sym); |
| 2280 | |
| 2281 | if (ecoff_sym_ptr->local) |
| 2282 | return FALSE; |
| 2283 | |
| 2284 | input_bfd = bfd_asymbol_bfd (sym); |
| 2285 | (*(ecoff_backend (input_bfd)->debug_swap.swap_ext_in)) |
| 2286 | (input_bfd, ecoff_sym_ptr->native, esym); |
| 2287 | |
| 2288 | /* If the symbol was defined by the linker, then esym will be |
| 2289 | undefined but sym will not be. Get a better class for such a |
| 2290 | symbol. */ |
| 2291 | if ((esym->asym.sc == scUndefined |
| 2292 | || esym->asym.sc == scSUndefined) |
| 2293 | && ! bfd_is_und_section (bfd_get_section (sym))) |
| 2294 | esym->asym.sc = scAbs; |
| 2295 | |
| 2296 | /* Adjust the FDR index for the symbol by that used for the input |
| 2297 | BFD. */ |
| 2298 | if (esym->ifd != -1) |
| 2299 | { |
| 2300 | struct ecoff_debug_info *input_debug; |
| 2301 | |
| 2302 | input_debug = &ecoff_data (input_bfd)->debug_info; |
| 2303 | BFD_ASSERT (esym->ifd < input_debug->symbolic_header.ifdMax); |
| 2304 | if (input_debug->ifdmap != NULL) |
| 2305 | esym->ifd = input_debug->ifdmap[esym->ifd]; |
| 2306 | } |
| 2307 | |
| 2308 | return TRUE; |
| 2309 | } |
| 2310 | |
| 2311 | /* Set the external symbol index. This routine is passed to |
| 2312 | bfd_ecoff_debug_externals. */ |
| 2313 | |
| 2314 | static void |
| 2315 | ecoff_set_index (asymbol *sym, bfd_size_type indx) |
| 2316 | { |
| 2317 | ecoff_set_sym_index (sym, indx); |
| 2318 | } |
| 2319 | |
| 2320 | /* Write out an ECOFF file. */ |
| 2321 | |
| 2322 | bfd_boolean |
| 2323 | _bfd_ecoff_write_object_contents (bfd *abfd) |
| 2324 | { |
| 2325 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 2326 | const bfd_vma round = backend->round; |
| 2327 | const bfd_size_type filhsz = bfd_coff_filhsz (abfd); |
| 2328 | const bfd_size_type aoutsz = bfd_coff_aoutsz (abfd); |
| 2329 | const bfd_size_type scnhsz = bfd_coff_scnhsz (abfd); |
| 2330 | const bfd_size_type external_hdr_size |
| 2331 | = backend->debug_swap.external_hdr_size; |
| 2332 | const bfd_size_type external_reloc_size = backend->external_reloc_size; |
| 2333 | void (* const adjust_reloc_out) (bfd *, const arelent *, struct internal_reloc *) |
| 2334 | = backend->adjust_reloc_out; |
| 2335 | void (* const swap_reloc_out) (bfd *, const struct internal_reloc *, void *) |
| 2336 | = backend->swap_reloc_out; |
| 2337 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; |
| 2338 | HDRR * const symhdr = &debug->symbolic_header; |
| 2339 | asection *current; |
| 2340 | unsigned int count; |
| 2341 | bfd_size_type reloc_size; |
| 2342 | bfd_size_type text_size; |
| 2343 | bfd_vma text_start; |
| 2344 | bfd_boolean set_text_start; |
| 2345 | bfd_size_type data_size; |
| 2346 | bfd_vma data_start; |
| 2347 | bfd_boolean set_data_start; |
| 2348 | bfd_size_type bss_size; |
| 2349 | void * buff = NULL; |
| 2350 | void * reloc_buff = NULL; |
| 2351 | struct internal_filehdr internal_f; |
| 2352 | struct internal_aouthdr internal_a; |
| 2353 | int i; |
| 2354 | |
| 2355 | /* Determine where the sections and relocs will go in the output |
| 2356 | file. */ |
| 2357 | reloc_size = ecoff_compute_reloc_file_positions (abfd); |
| 2358 | |
| 2359 | count = 1; |
| 2360 | for (current = abfd->sections; |
| 2361 | current != NULL; |
| 2362 | current = current->next) |
| 2363 | { |
| 2364 | current->target_index = count; |
| 2365 | ++count; |
| 2366 | } |
| 2367 | |
| 2368 | if ((abfd->flags & D_PAGED) != 0) |
| 2369 | text_size = _bfd_ecoff_sizeof_headers (abfd, NULL); |
| 2370 | else |
| 2371 | text_size = 0; |
| 2372 | text_start = 0; |
| 2373 | set_text_start = FALSE; |
| 2374 | data_size = 0; |
| 2375 | data_start = 0; |
| 2376 | set_data_start = FALSE; |
| 2377 | bss_size = 0; |
| 2378 | |
| 2379 | /* Write section headers to the file. */ |
| 2380 | |
| 2381 | /* Allocate buff big enough to hold a section header, |
| 2382 | file header, or a.out header. */ |
| 2383 | { |
| 2384 | bfd_size_type siz; |
| 2385 | |
| 2386 | siz = scnhsz; |
| 2387 | if (siz < filhsz) |
| 2388 | siz = filhsz; |
| 2389 | if (siz < aoutsz) |
| 2390 | siz = aoutsz; |
| 2391 | buff = bfd_malloc (siz); |
| 2392 | if (buff == NULL) |
| 2393 | goto error_return; |
| 2394 | } |
| 2395 | |
| 2396 | internal_f.f_nscns = 0; |
| 2397 | if (bfd_seek (abfd, (file_ptr) (filhsz + aoutsz), SEEK_SET) != 0) |
| 2398 | goto error_return; |
| 2399 | |
| 2400 | for (current = abfd->sections; |
| 2401 | current != NULL; |
| 2402 | current = current->next) |
| 2403 | { |
| 2404 | struct internal_scnhdr section; |
| 2405 | bfd_vma vma; |
| 2406 | |
| 2407 | ++internal_f.f_nscns; |
| 2408 | |
| 2409 | strncpy (section.s_name, current->name, sizeof section.s_name); |
| 2410 | |
| 2411 | /* This seems to be correct for Irix 4 shared libraries. */ |
| 2412 | vma = bfd_get_section_vma (abfd, current); |
| 2413 | if (streq (current->name, _LIB)) |
| 2414 | section.s_vaddr = 0; |
| 2415 | else |
| 2416 | section.s_vaddr = vma; |
| 2417 | |
| 2418 | section.s_paddr = current->lma; |
| 2419 | section.s_size = current->size; |
| 2420 | |
| 2421 | /* If this section is unloadable then the scnptr will be 0. */ |
| 2422 | if ((current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
| 2423 | section.s_scnptr = 0; |
| 2424 | else |
| 2425 | section.s_scnptr = current->filepos; |
| 2426 | section.s_relptr = current->rel_filepos; |
| 2427 | |
| 2428 | /* FIXME: the lnnoptr of the .sbss or .sdata section of an |
| 2429 | object file produced by the assembler is supposed to point to |
| 2430 | information about how much room is required by objects of |
| 2431 | various different sizes. I think this only matters if we |
| 2432 | want the linker to compute the best size to use, or |
| 2433 | something. I don't know what happens if the information is |
| 2434 | not present. */ |
| 2435 | if (! streq (current->name, _PDATA)) |
| 2436 | section.s_lnnoptr = 0; |
| 2437 | else |
| 2438 | { |
| 2439 | /* The Alpha ECOFF .pdata section uses the lnnoptr field to |
| 2440 | hold the number of entries in the section (each entry is |
| 2441 | 8 bytes). We stored this in the line_filepos field in |
| 2442 | ecoff_compute_section_file_positions. */ |
| 2443 | section.s_lnnoptr = current->line_filepos; |
| 2444 | } |
| 2445 | |
| 2446 | section.s_nreloc = current->reloc_count; |
| 2447 | section.s_nlnno = 0; |
| 2448 | section.s_flags = ecoff_sec_to_styp_flags (current->name, |
| 2449 | current->flags); |
| 2450 | |
| 2451 | if (bfd_coff_swap_scnhdr_out (abfd, (void *) §ion, buff) == 0 |
| 2452 | || bfd_bwrite (buff, scnhsz, abfd) != scnhsz) |
| 2453 | goto error_return; |
| 2454 | |
| 2455 | if ((section.s_flags & STYP_TEXT) != 0 |
| 2456 | || ((section.s_flags & STYP_RDATA) != 0 |
| 2457 | && ecoff_data (abfd)->rdata_in_text) |
| 2458 | || section.s_flags == STYP_PDATA |
| 2459 | || (section.s_flags & STYP_DYNAMIC) != 0 |
| 2460 | || (section.s_flags & STYP_LIBLIST) != 0 |
| 2461 | || (section.s_flags & STYP_RELDYN) != 0 |
| 2462 | || section.s_flags == STYP_CONFLIC |
| 2463 | || (section.s_flags & STYP_DYNSTR) != 0 |
| 2464 | || (section.s_flags & STYP_DYNSYM) != 0 |
| 2465 | || (section.s_flags & STYP_HASH) != 0 |
| 2466 | || (section.s_flags & STYP_ECOFF_INIT) != 0 |
| 2467 | || (section.s_flags & STYP_ECOFF_FINI) != 0 |
| 2468 | || section.s_flags == STYP_RCONST) |
| 2469 | { |
| 2470 | text_size += current->size; |
| 2471 | if (! set_text_start || text_start > vma) |
| 2472 | { |
| 2473 | text_start = vma; |
| 2474 | set_text_start = TRUE; |
| 2475 | } |
| 2476 | } |
| 2477 | else if ((section.s_flags & STYP_RDATA) != 0 |
| 2478 | || (section.s_flags & STYP_DATA) != 0 |
| 2479 | || (section.s_flags & STYP_LITA) != 0 |
| 2480 | || (section.s_flags & STYP_LIT8) != 0 |
| 2481 | || (section.s_flags & STYP_LIT4) != 0 |
| 2482 | || (section.s_flags & STYP_SDATA) != 0 |
| 2483 | || section.s_flags == STYP_XDATA |
| 2484 | || (section.s_flags & STYP_GOT) != 0) |
| 2485 | { |
| 2486 | data_size += current->size; |
| 2487 | if (! set_data_start || data_start > vma) |
| 2488 | { |
| 2489 | data_start = vma; |
| 2490 | set_data_start = TRUE; |
| 2491 | } |
| 2492 | } |
| 2493 | else if ((section.s_flags & STYP_BSS) != 0 |
| 2494 | || (section.s_flags & STYP_SBSS) != 0) |
| 2495 | bss_size += current->size; |
| 2496 | else if (section.s_flags == 0 |
| 2497 | || (section.s_flags & STYP_ECOFF_LIB) != 0 |
| 2498 | || section.s_flags == STYP_COMMENT) |
| 2499 | /* Do nothing. */ ; |
| 2500 | else |
| 2501 | abort (); |
| 2502 | } |
| 2503 | |
| 2504 | /* Set up the file header. */ |
| 2505 | internal_f.f_magic = ecoff_get_magic (abfd); |
| 2506 | |
| 2507 | /* We will NOT put a fucking timestamp in the header here. Every |
| 2508 | time you put it back, I will come in and take it out again. I'm |
| 2509 | sorry. This field does not belong here. We fill it with a 0 so |
| 2510 | it compares the same but is not a reasonable time. -- |
| 2511 | gnu@cygnus.com. */ |
| 2512 | internal_f.f_timdat = 0; |
| 2513 | |
| 2514 | if (bfd_get_symcount (abfd) != 0) |
| 2515 | { |
| 2516 | /* The ECOFF f_nsyms field is not actually the number of |
| 2517 | symbols, it's the size of symbolic information header. */ |
| 2518 | internal_f.f_nsyms = external_hdr_size; |
| 2519 | internal_f.f_symptr = ecoff_data (abfd)->sym_filepos; |
| 2520 | } |
| 2521 | else |
| 2522 | { |
| 2523 | internal_f.f_nsyms = 0; |
| 2524 | internal_f.f_symptr = 0; |
| 2525 | } |
| 2526 | |
| 2527 | internal_f.f_opthdr = aoutsz; |
| 2528 | |
| 2529 | internal_f.f_flags = F_LNNO; |
| 2530 | if (reloc_size == 0) |
| 2531 | internal_f.f_flags |= F_RELFLG; |
| 2532 | if (bfd_get_symcount (abfd) == 0) |
| 2533 | internal_f.f_flags |= F_LSYMS; |
| 2534 | if (abfd->flags & EXEC_P) |
| 2535 | internal_f.f_flags |= F_EXEC; |
| 2536 | |
| 2537 | if (bfd_little_endian (abfd)) |
| 2538 | internal_f.f_flags |= F_AR32WR; |
| 2539 | else |
| 2540 | internal_f.f_flags |= F_AR32W; |
| 2541 | |
| 2542 | /* Set up the ``optional'' header. */ |
| 2543 | if ((abfd->flags & D_PAGED) != 0) |
| 2544 | internal_a.magic = ECOFF_AOUT_ZMAGIC; |
| 2545 | else |
| 2546 | internal_a.magic = ECOFF_AOUT_OMAGIC; |
| 2547 | |
| 2548 | /* FIXME: Is this really correct? */ |
| 2549 | internal_a.vstamp = symhdr->vstamp; |
| 2550 | |
| 2551 | /* At least on Ultrix, these have to be rounded to page boundaries. |
| 2552 | FIXME: Is this true on other platforms? */ |
| 2553 | if ((abfd->flags & D_PAGED) != 0) |
| 2554 | { |
| 2555 | internal_a.tsize = (text_size + round - 1) &~ (round - 1); |
| 2556 | internal_a.text_start = text_start &~ (round - 1); |
| 2557 | internal_a.dsize = (data_size + round - 1) &~ (round - 1); |
| 2558 | internal_a.data_start = data_start &~ (round - 1); |
| 2559 | } |
| 2560 | else |
| 2561 | { |
| 2562 | internal_a.tsize = text_size; |
| 2563 | internal_a.text_start = text_start; |
| 2564 | internal_a.dsize = data_size; |
| 2565 | internal_a.data_start = data_start; |
| 2566 | } |
| 2567 | |
| 2568 | /* On Ultrix, the initial portions of the .sbss and .bss segments |
| 2569 | are at the end of the data section. The bsize field in the |
| 2570 | optional header records how many bss bytes are required beyond |
| 2571 | those in the data section. The value is not rounded to a page |
| 2572 | boundary. */ |
| 2573 | if (bss_size < internal_a.dsize - data_size) |
| 2574 | bss_size = 0; |
| 2575 | else |
| 2576 | bss_size -= internal_a.dsize - data_size; |
| 2577 | internal_a.bsize = bss_size; |
| 2578 | internal_a.bss_start = internal_a.data_start + internal_a.dsize; |
| 2579 | |
| 2580 | internal_a.entry = bfd_get_start_address (abfd); |
| 2581 | |
| 2582 | internal_a.gp_value = ecoff_data (abfd)->gp; |
| 2583 | |
| 2584 | internal_a.gprmask = ecoff_data (abfd)->gprmask; |
| 2585 | internal_a.fprmask = ecoff_data (abfd)->fprmask; |
| 2586 | for (i = 0; i < 4; i++) |
| 2587 | internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i]; |
| 2588 | |
| 2589 | /* Let the backend adjust the headers if necessary. */ |
| 2590 | if (backend->adjust_headers) |
| 2591 | { |
| 2592 | if (! (*backend->adjust_headers) (abfd, &internal_f, &internal_a)) |
| 2593 | goto error_return; |
| 2594 | } |
| 2595 | |
| 2596 | /* Write out the file header and the optional header. */ |
| 2597 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
| 2598 | goto error_return; |
| 2599 | |
| 2600 | bfd_coff_swap_filehdr_out (abfd, (void *) &internal_f, buff); |
| 2601 | if (bfd_bwrite (buff, filhsz, abfd) != filhsz) |
| 2602 | goto error_return; |
| 2603 | |
| 2604 | bfd_coff_swap_aouthdr_out (abfd, (void *) &internal_a, buff); |
| 2605 | if (bfd_bwrite (buff, aoutsz, abfd) != aoutsz) |
| 2606 | goto error_return; |
| 2607 | |
| 2608 | /* Build the external symbol information. This must be done before |
| 2609 | writing out the relocs so that we know the symbol indices. We |
| 2610 | don't do this if this BFD was created by the backend linker, |
| 2611 | since it will have already handled the symbols and relocs. */ |
| 2612 | if (! ecoff_data (abfd)->linker) |
| 2613 | { |
| 2614 | symhdr->iextMax = 0; |
| 2615 | symhdr->issExtMax = 0; |
| 2616 | debug->external_ext = debug->external_ext_end = NULL; |
| 2617 | debug->ssext = debug->ssext_end = NULL; |
| 2618 | if (! bfd_ecoff_debug_externals (abfd, debug, &backend->debug_swap, |
| 2619 | (abfd->flags & EXEC_P) == 0, |
| 2620 | ecoff_get_extr, ecoff_set_index)) |
| 2621 | goto error_return; |
| 2622 | |
| 2623 | /* Write out the relocs. */ |
| 2624 | for (current = abfd->sections; |
| 2625 | current != NULL; |
| 2626 | current = current->next) |
| 2627 | { |
| 2628 | arelent **reloc_ptr_ptr; |
| 2629 | arelent **reloc_end; |
| 2630 | char *out_ptr; |
| 2631 | bfd_size_type amt; |
| 2632 | |
| 2633 | if (current->reloc_count == 0) |
| 2634 | continue; |
| 2635 | |
| 2636 | amt = current->reloc_count * external_reloc_size; |
| 2637 | reloc_buff = bfd_alloc (abfd, amt); |
| 2638 | if (reloc_buff == NULL) |
| 2639 | goto error_return; |
| 2640 | |
| 2641 | reloc_ptr_ptr = current->orelocation; |
| 2642 | reloc_end = reloc_ptr_ptr + current->reloc_count; |
| 2643 | out_ptr = (char *) reloc_buff; |
| 2644 | |
| 2645 | for (; |
| 2646 | reloc_ptr_ptr < reloc_end; |
| 2647 | reloc_ptr_ptr++, out_ptr += external_reloc_size) |
| 2648 | { |
| 2649 | arelent *reloc; |
| 2650 | asymbol *sym; |
| 2651 | struct internal_reloc in; |
| 2652 | |
| 2653 | memset ((void *) &in, 0, sizeof in); |
| 2654 | |
| 2655 | reloc = *reloc_ptr_ptr; |
| 2656 | sym = *reloc->sym_ptr_ptr; |
| 2657 | |
| 2658 | /* If the howto field has not been initialised then skip this reloc. |
| 2659 | This assumes that an error message has been issued elsewhere. */ |
| 2660 | if (reloc->howto == NULL) |
| 2661 | continue; |
| 2662 | |
| 2663 | in.r_vaddr = (reloc->address |
| 2664 | + bfd_get_section_vma (abfd, current)); |
| 2665 | in.r_type = reloc->howto->type; |
| 2666 | |
| 2667 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
| 2668 | { |
| 2669 | in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr); |
| 2670 | in.r_extern = 1; |
| 2671 | } |
| 2672 | else |
| 2673 | { |
| 2674 | const char *name; |
| 2675 | unsigned int j; |
| 2676 | static struct |
| 2677 | { |
| 2678 | const char * name; |
| 2679 | long r_symndx; |
| 2680 | } |
| 2681 | section_symndx [] = |
| 2682 | { |
| 2683 | { _TEXT, RELOC_SECTION_TEXT }, |
| 2684 | { _RDATA, RELOC_SECTION_RDATA }, |
| 2685 | { _DATA, RELOC_SECTION_DATA }, |
| 2686 | { _SDATA, RELOC_SECTION_SDATA }, |
| 2687 | { _SBSS, RELOC_SECTION_SBSS }, |
| 2688 | { _BSS, RELOC_SECTION_BSS }, |
| 2689 | { _INIT, RELOC_SECTION_INIT }, |
| 2690 | { _LIT8, RELOC_SECTION_LIT8 }, |
| 2691 | { _LIT4, RELOC_SECTION_LIT4 }, |
| 2692 | { _XDATA, RELOC_SECTION_XDATA }, |
| 2693 | { _PDATA, RELOC_SECTION_PDATA }, |
| 2694 | { _FINI, RELOC_SECTION_FINI }, |
| 2695 | { _LITA, RELOC_SECTION_LITA }, |
| 2696 | { "*ABS*", RELOC_SECTION_ABS }, |
| 2697 | { _RCONST, RELOC_SECTION_RCONST } |
| 2698 | }; |
| 2699 | |
| 2700 | name = bfd_get_section_name (abfd, bfd_get_section (sym)); |
| 2701 | |
| 2702 | for (j = 0; j < ARRAY_SIZE (section_symndx); j++) |
| 2703 | if (streq (name, section_symndx[j].name)) |
| 2704 | { |
| 2705 | in.r_symndx = section_symndx[j].r_symndx; |
| 2706 | break; |
| 2707 | } |
| 2708 | |
| 2709 | if (j == ARRAY_SIZE (section_symndx)) |
| 2710 | abort (); |
| 2711 | in.r_extern = 0; |
| 2712 | } |
| 2713 | |
| 2714 | (*adjust_reloc_out) (abfd, reloc, &in); |
| 2715 | |
| 2716 | (*swap_reloc_out) (abfd, &in, (void *) out_ptr); |
| 2717 | } |
| 2718 | |
| 2719 | if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0) |
| 2720 | goto error_return; |
| 2721 | amt = current->reloc_count * external_reloc_size; |
| 2722 | if (bfd_bwrite (reloc_buff, amt, abfd) != amt) |
| 2723 | goto error_return; |
| 2724 | bfd_release (abfd, reloc_buff); |
| 2725 | reloc_buff = NULL; |
| 2726 | } |
| 2727 | |
| 2728 | /* Write out the symbolic debugging information. */ |
| 2729 | if (bfd_get_symcount (abfd) > 0) |
| 2730 | { |
| 2731 | /* Write out the debugging information. */ |
| 2732 | if (! bfd_ecoff_write_debug (abfd, debug, &backend->debug_swap, |
| 2733 | ecoff_data (abfd)->sym_filepos)) |
| 2734 | goto error_return; |
| 2735 | } |
| 2736 | } |
| 2737 | |
| 2738 | /* The .bss section of a demand paged executable must receive an |
| 2739 | entire page. If there are symbols, the symbols will start on the |
| 2740 | next page. If there are no symbols, we must fill out the page by |
| 2741 | hand. */ |
| 2742 | if (bfd_get_symcount (abfd) == 0 |
| 2743 | && (abfd->flags & EXEC_P) != 0 |
| 2744 | && (abfd->flags & D_PAGED) != 0) |
| 2745 | { |
| 2746 | char c; |
| 2747 | |
| 2748 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, |
| 2749 | SEEK_SET) != 0) |
| 2750 | goto error_return; |
| 2751 | if (bfd_bread (&c, (bfd_size_type) 1, abfd) == 0) |
| 2752 | c = 0; |
| 2753 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, |
| 2754 | SEEK_SET) != 0) |
| 2755 | goto error_return; |
| 2756 | if (bfd_bwrite (&c, (bfd_size_type) 1, abfd) != 1) |
| 2757 | goto error_return; |
| 2758 | } |
| 2759 | |
| 2760 | if (reloc_buff != NULL) |
| 2761 | bfd_release (abfd, reloc_buff); |
| 2762 | if (buff != NULL) |
| 2763 | free (buff); |
| 2764 | return TRUE; |
| 2765 | error_return: |
| 2766 | if (reloc_buff != NULL) |
| 2767 | bfd_release (abfd, reloc_buff); |
| 2768 | if (buff != NULL) |
| 2769 | free (buff); |
| 2770 | return FALSE; |
| 2771 | } |
| 2772 | \f |
| 2773 | /* Archive handling. ECOFF uses what appears to be a unique type of |
| 2774 | archive header (armap). The byte ordering of the armap and the |
| 2775 | contents are encoded in the name of the armap itself. At least for |
| 2776 | now, we only support archives with the same byte ordering in the |
| 2777 | armap and the contents. |
| 2778 | |
| 2779 | The first four bytes in the armap are the number of symbol |
| 2780 | definitions. This is always a power of two. |
| 2781 | |
| 2782 | This is followed by the symbol definitions. Each symbol definition |
| 2783 | occupies 8 bytes. The first four bytes are the offset from the |
| 2784 | start of the armap strings to the null-terminated string naming |
| 2785 | this symbol. The second four bytes are the file offset to the |
| 2786 | archive member which defines this symbol. If the second four bytes |
| 2787 | are 0, then this is not actually a symbol definition, and it should |
| 2788 | be ignored. |
| 2789 | |
| 2790 | The symbols are hashed into the armap with a closed hashing scheme. |
| 2791 | See the functions below for the details of the algorithm. |
| 2792 | |
| 2793 | After the symbol definitions comes four bytes holding the size of |
| 2794 | the string table, followed by the string table itself. */ |
| 2795 | |
| 2796 | /* The name of an archive headers looks like this: |
| 2797 | __________E[BL]E[BL]_ (with a trailing space). |
| 2798 | The trailing space is changed to an X if the archive is changed to |
| 2799 | indicate that the armap is out of date. |
| 2800 | |
| 2801 | The Alpha seems to use ________64E[BL]E[BL]_. */ |
| 2802 | |
| 2803 | #define ARMAP_BIG_ENDIAN 'B' |
| 2804 | #define ARMAP_LITTLE_ENDIAN 'L' |
| 2805 | #define ARMAP_MARKER 'E' |
| 2806 | #define ARMAP_START_LENGTH 10 |
| 2807 | #define ARMAP_HEADER_MARKER_INDEX 10 |
| 2808 | #define ARMAP_HEADER_ENDIAN_INDEX 11 |
| 2809 | #define ARMAP_OBJECT_MARKER_INDEX 12 |
| 2810 | #define ARMAP_OBJECT_ENDIAN_INDEX 13 |
| 2811 | #define ARMAP_END_INDEX 14 |
| 2812 | #define ARMAP_END "_ " |
| 2813 | |
| 2814 | /* This is a magic number used in the hashing algorithm. */ |
| 2815 | #define ARMAP_HASH_MAGIC 0x9dd68ab5 |
| 2816 | |
| 2817 | /* This returns the hash value to use for a string. It also sets |
| 2818 | *REHASH to the rehash adjustment if the first slot is taken. SIZE |
| 2819 | is the number of entries in the hash table, and HLOG is the log |
| 2820 | base 2 of SIZE. */ |
| 2821 | |
| 2822 | static unsigned int |
| 2823 | ecoff_armap_hash (const char *s, |
| 2824 | unsigned int *rehash, |
| 2825 | unsigned int size, |
| 2826 | unsigned int hlog) |
| 2827 | { |
| 2828 | unsigned int hash; |
| 2829 | |
| 2830 | if (hlog == 0) |
| 2831 | return 0; |
| 2832 | hash = *s++; |
| 2833 | while (*s != '\0') |
| 2834 | hash = ((hash >> 27) | (hash << 5)) + *s++; |
| 2835 | hash *= ARMAP_HASH_MAGIC; |
| 2836 | *rehash = (hash & (size - 1)) | 1; |
| 2837 | return hash >> (32 - hlog); |
| 2838 | } |
| 2839 | |
| 2840 | /* Read in the armap. */ |
| 2841 | |
| 2842 | bfd_boolean |
| 2843 | _bfd_ecoff_slurp_armap (bfd *abfd) |
| 2844 | { |
| 2845 | char nextname[17]; |
| 2846 | unsigned int i; |
| 2847 | struct areltdata *mapdata; |
| 2848 | bfd_size_type parsed_size; |
| 2849 | char *raw_armap; |
| 2850 | struct artdata *ardata; |
| 2851 | unsigned int count; |
| 2852 | char *raw_ptr; |
| 2853 | carsym *symdef_ptr; |
| 2854 | char *stringbase; |
| 2855 | bfd_size_type amt; |
| 2856 | |
| 2857 | /* Get the name of the first element. */ |
| 2858 | i = bfd_bread ((void *) nextname, (bfd_size_type) 16, abfd); |
| 2859 | if (i == 0) |
| 2860 | return TRUE; |
| 2861 | if (i != 16) |
| 2862 | return FALSE; |
| 2863 | |
| 2864 | if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0) |
| 2865 | return FALSE; |
| 2866 | |
| 2867 | /* Irix 4.0.5F apparently can use either an ECOFF armap or a |
| 2868 | standard COFF armap. We could move the ECOFF armap stuff into |
| 2869 | bfd_slurp_armap, but that seems inappropriate since no other |
| 2870 | target uses this format. Instead, we check directly for a COFF |
| 2871 | armap. */ |
| 2872 | if (CONST_STRNEQ (nextname, "/ ")) |
| 2873 | return bfd_slurp_armap (abfd); |
| 2874 | |
| 2875 | /* See if the first element is an armap. */ |
| 2876 | if (! strneq (nextname, ecoff_backend (abfd)->armap_start, ARMAP_START_LENGTH) |
| 2877 | || nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER |
| 2878 | || (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN |
| 2879 | && nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) |
| 2880 | || nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER |
| 2881 | || (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN |
| 2882 | && nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) |
| 2883 | || ! strneq (nextname + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1)) |
| 2884 | { |
| 2885 | bfd_has_map (abfd) = FALSE; |
| 2886 | return TRUE; |
| 2887 | } |
| 2888 | |
| 2889 | /* Make sure we have the right byte ordering. */ |
| 2890 | if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) |
| 2891 | ^ (bfd_header_big_endian (abfd))) |
| 2892 | || ((nextname[ARMAP_OBJECT_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) |
| 2893 | ^ (bfd_big_endian (abfd)))) |
| 2894 | { |
| 2895 | bfd_set_error (bfd_error_wrong_format); |
| 2896 | return FALSE; |
| 2897 | } |
| 2898 | |
| 2899 | /* Read in the armap. */ |
| 2900 | ardata = bfd_ardata (abfd); |
| 2901 | mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd); |
| 2902 | if (mapdata == NULL) |
| 2903 | return FALSE; |
| 2904 | parsed_size = mapdata->parsed_size; |
| 2905 | free (mapdata); |
| 2906 | |
| 2907 | raw_armap = (char *) bfd_alloc (abfd, parsed_size); |
| 2908 | if (raw_armap == NULL) |
| 2909 | return FALSE; |
| 2910 | |
| 2911 | if (bfd_bread ((void *) raw_armap, parsed_size, abfd) != parsed_size) |
| 2912 | { |
| 2913 | if (bfd_get_error () != bfd_error_system_call) |
| 2914 | bfd_set_error (bfd_error_malformed_archive); |
| 2915 | bfd_release (abfd, (void *) raw_armap); |
| 2916 | return FALSE; |
| 2917 | } |
| 2918 | |
| 2919 | ardata->tdata = (void *) raw_armap; |
| 2920 | |
| 2921 | count = H_GET_32 (abfd, raw_armap); |
| 2922 | |
| 2923 | ardata->symdef_count = 0; |
| 2924 | ardata->cache = NULL; |
| 2925 | |
| 2926 | /* This code used to overlay the symdefs over the raw archive data, |
| 2927 | but that doesn't work on a 64 bit host. */ |
| 2928 | stringbase = raw_armap + count * 8 + 8; |
| 2929 | |
| 2930 | #ifdef CHECK_ARMAP_HASH |
| 2931 | { |
| 2932 | unsigned int hlog; |
| 2933 | |
| 2934 | /* Double check that I have the hashing algorithm right by making |
| 2935 | sure that every symbol can be looked up successfully. */ |
| 2936 | hlog = 0; |
| 2937 | for (i = 1; i < count; i <<= 1) |
| 2938 | hlog++; |
| 2939 | BFD_ASSERT (i == count); |
| 2940 | |
| 2941 | raw_ptr = raw_armap + 4; |
| 2942 | for (i = 0; i < count; i++, raw_ptr += 8) |
| 2943 | { |
| 2944 | unsigned int name_offset, file_offset; |
| 2945 | unsigned int hash, rehash, srch; |
| 2946 | |
| 2947 | name_offset = H_GET_32 (abfd, raw_ptr); |
| 2948 | file_offset = H_GET_32 (abfd, (raw_ptr + 4)); |
| 2949 | if (file_offset == 0) |
| 2950 | continue; |
| 2951 | hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count, |
| 2952 | hlog); |
| 2953 | if (hash == i) |
| 2954 | continue; |
| 2955 | |
| 2956 | /* See if we can rehash to this location. */ |
| 2957 | for (srch = (hash + rehash) & (count - 1); |
| 2958 | srch != hash && srch != i; |
| 2959 | srch = (srch + rehash) & (count - 1)) |
| 2960 | BFD_ASSERT (H_GET_32 (abfd, (raw_armap + 8 + srch * 8)) != 0); |
| 2961 | BFD_ASSERT (srch == i); |
| 2962 | } |
| 2963 | } |
| 2964 | |
| 2965 | #endif /* CHECK_ARMAP_HASH */ |
| 2966 | |
| 2967 | raw_ptr = raw_armap + 4; |
| 2968 | for (i = 0; i < count; i++, raw_ptr += 8) |
| 2969 | if (H_GET_32 (abfd, (raw_ptr + 4)) != 0) |
| 2970 | ++ardata->symdef_count; |
| 2971 | |
| 2972 | amt = ardata->symdef_count; |
| 2973 | amt *= sizeof (carsym); |
| 2974 | symdef_ptr = (carsym *) bfd_alloc (abfd, amt); |
| 2975 | if (!symdef_ptr) |
| 2976 | return FALSE; |
| 2977 | |
| 2978 | ardata->symdefs = symdef_ptr; |
| 2979 | |
| 2980 | raw_ptr = raw_armap + 4; |
| 2981 | for (i = 0; i < count; i++, raw_ptr += 8) |
| 2982 | { |
| 2983 | unsigned int name_offset, file_offset; |
| 2984 | |
| 2985 | file_offset = H_GET_32 (abfd, (raw_ptr + 4)); |
| 2986 | if (file_offset == 0) |
| 2987 | continue; |
| 2988 | name_offset = H_GET_32 (abfd, raw_ptr); |
| 2989 | symdef_ptr->name = stringbase + name_offset; |
| 2990 | symdef_ptr->file_offset = file_offset; |
| 2991 | ++symdef_ptr; |
| 2992 | } |
| 2993 | |
| 2994 | ardata->first_file_filepos = bfd_tell (abfd); |
| 2995 | /* Pad to an even boundary. */ |
| 2996 | ardata->first_file_filepos += ardata->first_file_filepos % 2; |
| 2997 | |
| 2998 | bfd_has_map (abfd) = TRUE; |
| 2999 | |
| 3000 | return TRUE; |
| 3001 | } |
| 3002 | |
| 3003 | /* Write out an armap. */ |
| 3004 | |
| 3005 | bfd_boolean |
| 3006 | _bfd_ecoff_write_armap (bfd *abfd, |
| 3007 | unsigned int elength, |
| 3008 | struct orl *map, |
| 3009 | unsigned int orl_count, |
| 3010 | int stridx) |
| 3011 | { |
| 3012 | unsigned int hashsize, hashlog; |
| 3013 | bfd_size_type symdefsize; |
| 3014 | int padit; |
| 3015 | unsigned int stringsize; |
| 3016 | unsigned int mapsize; |
| 3017 | file_ptr firstreal; |
| 3018 | struct ar_hdr hdr; |
| 3019 | struct stat statbuf; |
| 3020 | unsigned int i; |
| 3021 | bfd_byte temp[4]; |
| 3022 | bfd_byte *hashtable; |
| 3023 | bfd *current; |
| 3024 | bfd *last_elt; |
| 3025 | |
| 3026 | /* Ultrix appears to use as a hash table size the least power of two |
| 3027 | greater than twice the number of entries. */ |
| 3028 | for (hashlog = 0; ((unsigned int) 1 << hashlog) <= 2 * orl_count; hashlog++) |
| 3029 | ; |
| 3030 | hashsize = 1 << hashlog; |
| 3031 | |
| 3032 | symdefsize = hashsize * 8; |
| 3033 | padit = stridx % 2; |
| 3034 | stringsize = stridx + padit; |
| 3035 | |
| 3036 | /* Include 8 bytes to store symdefsize and stringsize in output. */ |
| 3037 | mapsize = symdefsize + stringsize + 8; |
| 3038 | |
| 3039 | firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength; |
| 3040 | |
| 3041 | memset ((void *) &hdr, 0, sizeof hdr); |
| 3042 | |
| 3043 | /* Work out the ECOFF armap name. */ |
| 3044 | strcpy (hdr.ar_name, ecoff_backend (abfd)->armap_start); |
| 3045 | hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER; |
| 3046 | hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] = |
| 3047 | (bfd_header_big_endian (abfd) |
| 3048 | ? ARMAP_BIG_ENDIAN |
| 3049 | : ARMAP_LITTLE_ENDIAN); |
| 3050 | hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER; |
| 3051 | hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] = |
| 3052 | bfd_big_endian (abfd) ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN; |
| 3053 | memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1); |
| 3054 | |
| 3055 | /* Write the timestamp of the archive header to be just a little bit |
| 3056 | later than the timestamp of the file, otherwise the linker will |
| 3057 | complain that the index is out of date. Actually, the Ultrix |
| 3058 | linker just checks the archive name; the GNU linker may check the |
| 3059 | date. */ |
| 3060 | stat (abfd->filename, &statbuf); |
| 3061 | _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld", |
| 3062 | (long) (statbuf.st_mtime + 60)); |
| 3063 | |
| 3064 | /* The DECstation uses zeroes for the uid, gid and mode of the |
| 3065 | armap. */ |
| 3066 | hdr.ar_uid[0] = '0'; |
| 3067 | hdr.ar_gid[0] = '0'; |
| 3068 | /* Building gcc ends up extracting the armap as a file - twice. */ |
| 3069 | hdr.ar_mode[0] = '6'; |
| 3070 | hdr.ar_mode[1] = '4'; |
| 3071 | hdr.ar_mode[2] = '4'; |
| 3072 | |
| 3073 | _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld", mapsize); |
| 3074 | |
| 3075 | hdr.ar_fmag[0] = '`'; |
| 3076 | hdr.ar_fmag[1] = '\012'; |
| 3077 | |
| 3078 | /* Turn all null bytes in the header into spaces. */ |
| 3079 | for (i = 0; i < sizeof (struct ar_hdr); i++) |
| 3080 | if (((char *) (&hdr))[i] == '\0') |
| 3081 | (((char *) (&hdr))[i]) = ' '; |
| 3082 | |
| 3083 | if (bfd_bwrite ((void *) &hdr, (bfd_size_type) sizeof (struct ar_hdr), abfd) |
| 3084 | != sizeof (struct ar_hdr)) |
| 3085 | return FALSE; |
| 3086 | |
| 3087 | H_PUT_32 (abfd, hashsize, temp); |
| 3088 | if (bfd_bwrite ((void *) temp, (bfd_size_type) 4, abfd) != 4) |
| 3089 | return FALSE; |
| 3090 | |
| 3091 | hashtable = (bfd_byte *) bfd_zalloc (abfd, symdefsize); |
| 3092 | if (!hashtable) |
| 3093 | return FALSE; |
| 3094 | |
| 3095 | current = abfd->archive_head; |
| 3096 | last_elt = current; |
| 3097 | for (i = 0; i < orl_count; i++) |
| 3098 | { |
| 3099 | unsigned int hash, rehash = 0; |
| 3100 | |
| 3101 | /* Advance firstreal to the file position of this archive |
| 3102 | element. */ |
| 3103 | if (map[i].u.abfd != last_elt) |
| 3104 | { |
| 3105 | do |
| 3106 | { |
| 3107 | firstreal += arelt_size (current) + sizeof (struct ar_hdr); |
| 3108 | firstreal += firstreal % 2; |
| 3109 | current = current->archive_next; |
| 3110 | } |
| 3111 | while (current != map[i].u.abfd); |
| 3112 | } |
| 3113 | |
| 3114 | last_elt = current; |
| 3115 | |
| 3116 | hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog); |
| 3117 | if (H_GET_32 (abfd, (hashtable + (hash * 8) + 4)) != 0) |
| 3118 | { |
| 3119 | unsigned int srch; |
| 3120 | |
| 3121 | /* The desired slot is already taken. */ |
| 3122 | for (srch = (hash + rehash) & (hashsize - 1); |
| 3123 | srch != hash; |
| 3124 | srch = (srch + rehash) & (hashsize - 1)) |
| 3125 | if (H_GET_32 (abfd, (hashtable + (srch * 8) + 4)) == 0) |
| 3126 | break; |
| 3127 | |
| 3128 | BFD_ASSERT (srch != hash); |
| 3129 | |
| 3130 | hash = srch; |
| 3131 | } |
| 3132 | |
| 3133 | H_PUT_32 (abfd, map[i].namidx, (hashtable + hash * 8)); |
| 3134 | H_PUT_32 (abfd, firstreal, (hashtable + hash * 8 + 4)); |
| 3135 | } |
| 3136 | |
| 3137 | if (bfd_bwrite ((void *) hashtable, symdefsize, abfd) != symdefsize) |
| 3138 | return FALSE; |
| 3139 | |
| 3140 | bfd_release (abfd, hashtable); |
| 3141 | |
| 3142 | /* Now write the strings. */ |
| 3143 | H_PUT_32 (abfd, stringsize, temp); |
| 3144 | if (bfd_bwrite ((void *) temp, (bfd_size_type) 4, abfd) != 4) |
| 3145 | return FALSE; |
| 3146 | for (i = 0; i < orl_count; i++) |
| 3147 | { |
| 3148 | bfd_size_type len; |
| 3149 | |
| 3150 | len = strlen (*map[i].name) + 1; |
| 3151 | if (bfd_bwrite ((void *) (*map[i].name), len, abfd) != len) |
| 3152 | return FALSE; |
| 3153 | } |
| 3154 | |
| 3155 | /* The spec sez this should be a newline. But in order to be |
| 3156 | bug-compatible for DECstation ar we use a null. */ |
| 3157 | if (padit) |
| 3158 | { |
| 3159 | if (bfd_bwrite ("", (bfd_size_type) 1, abfd) != 1) |
| 3160 | return FALSE; |
| 3161 | } |
| 3162 | |
| 3163 | return TRUE; |
| 3164 | } |
| 3165 | \f |
| 3166 | /* ECOFF linker code. */ |
| 3167 | |
| 3168 | /* Routine to create an entry in an ECOFF link hash table. */ |
| 3169 | |
| 3170 | static struct bfd_hash_entry * |
| 3171 | ecoff_link_hash_newfunc (struct bfd_hash_entry *entry, |
| 3172 | struct bfd_hash_table *table, |
| 3173 | const char *string) |
| 3174 | { |
| 3175 | struct ecoff_link_hash_entry *ret = (struct ecoff_link_hash_entry *) entry; |
| 3176 | |
| 3177 | /* Allocate the structure if it has not already been allocated by a |
| 3178 | subclass. */ |
| 3179 | if (ret == NULL) |
| 3180 | ret = ((struct ecoff_link_hash_entry *) |
| 3181 | bfd_hash_allocate (table, sizeof (struct ecoff_link_hash_entry))); |
| 3182 | if (ret == NULL) |
| 3183 | return NULL; |
| 3184 | |
| 3185 | /* Call the allocation method of the superclass. */ |
| 3186 | ret = ((struct ecoff_link_hash_entry *) |
| 3187 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
| 3188 | table, string)); |
| 3189 | |
| 3190 | if (ret) |
| 3191 | { |
| 3192 | /* Set local fields. */ |
| 3193 | ret->indx = -1; |
| 3194 | ret->abfd = NULL; |
| 3195 | ret->written = 0; |
| 3196 | ret->small = 0; |
| 3197 | } |
| 3198 | memset ((void *) &ret->esym, 0, sizeof ret->esym); |
| 3199 | |
| 3200 | return (struct bfd_hash_entry *) ret; |
| 3201 | } |
| 3202 | |
| 3203 | /* Create an ECOFF link hash table. */ |
| 3204 | |
| 3205 | struct bfd_link_hash_table * |
| 3206 | _bfd_ecoff_bfd_link_hash_table_create (bfd *abfd) |
| 3207 | { |
| 3208 | struct ecoff_link_hash_table *ret; |
| 3209 | bfd_size_type amt = sizeof (struct ecoff_link_hash_table); |
| 3210 | |
| 3211 | ret = (struct ecoff_link_hash_table *) bfd_malloc (amt); |
| 3212 | if (ret == NULL) |
| 3213 | return NULL; |
| 3214 | if (!_bfd_link_hash_table_init (&ret->root, abfd, |
| 3215 | ecoff_link_hash_newfunc, |
| 3216 | sizeof (struct ecoff_link_hash_entry))) |
| 3217 | { |
| 3218 | free (ret); |
| 3219 | return NULL; |
| 3220 | } |
| 3221 | return &ret->root; |
| 3222 | } |
| 3223 | |
| 3224 | /* Look up an entry in an ECOFF link hash table. */ |
| 3225 | |
| 3226 | #define ecoff_link_hash_lookup(table, string, create, copy, follow) \ |
| 3227 | ((struct ecoff_link_hash_entry *) \ |
| 3228 | bfd_link_hash_lookup (&(table)->root, (string), (create), (copy), (follow))) |
| 3229 | |
| 3230 | /* Get the ECOFF link hash table from the info structure. This is |
| 3231 | just a cast. */ |
| 3232 | |
| 3233 | #define ecoff_hash_table(p) ((struct ecoff_link_hash_table *) ((p)->hash)) |
| 3234 | |
| 3235 | /* Add the external symbols of an object file to the global linker |
| 3236 | hash table. The external symbols and strings we are passed are |
| 3237 | just allocated on the stack, and will be discarded. We must |
| 3238 | explicitly save any information we may need later on in the link. |
| 3239 | We do not want to read the external symbol information again. */ |
| 3240 | |
| 3241 | static bfd_boolean |
| 3242 | ecoff_link_add_externals (bfd *abfd, |
| 3243 | struct bfd_link_info *info, |
| 3244 | void * external_ext, |
| 3245 | char *ssext) |
| 3246 | { |
| 3247 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 3248 | void (* const swap_ext_in) (bfd *, void *, EXTR *) |
| 3249 | = backend->debug_swap.swap_ext_in; |
| 3250 | bfd_size_type external_ext_size = backend->debug_swap.external_ext_size; |
| 3251 | unsigned long ext_count; |
| 3252 | struct bfd_link_hash_entry **sym_hash; |
| 3253 | char *ext_ptr; |
| 3254 | char *ext_end; |
| 3255 | bfd_size_type amt; |
| 3256 | |
| 3257 | ext_count = ecoff_data (abfd)->debug_info.symbolic_header.iextMax; |
| 3258 | |
| 3259 | amt = ext_count; |
| 3260 | amt *= sizeof (struct bfd_link_hash_entry *); |
| 3261 | sym_hash = (struct bfd_link_hash_entry **) bfd_alloc (abfd, amt); |
| 3262 | if (!sym_hash) |
| 3263 | return FALSE; |
| 3264 | ecoff_data (abfd)->sym_hashes = (struct ecoff_link_hash_entry **) sym_hash; |
| 3265 | |
| 3266 | ext_ptr = (char *) external_ext; |
| 3267 | ext_end = ext_ptr + ext_count * external_ext_size; |
| 3268 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size, sym_hash++) |
| 3269 | { |
| 3270 | EXTR esym; |
| 3271 | bfd_boolean skip; |
| 3272 | bfd_vma value; |
| 3273 | asection *section; |
| 3274 | const char *name; |
| 3275 | struct ecoff_link_hash_entry *h; |
| 3276 | |
| 3277 | *sym_hash = NULL; |
| 3278 | |
| 3279 | (*swap_ext_in) (abfd, (void *) ext_ptr, &esym); |
| 3280 | |
| 3281 | /* Skip debugging symbols. */ |
| 3282 | skip = FALSE; |
| 3283 | switch (esym.asym.st) |
| 3284 | { |
| 3285 | case stGlobal: |
| 3286 | case stStatic: |
| 3287 | case stLabel: |
| 3288 | case stProc: |
| 3289 | case stStaticProc: |
| 3290 | break; |
| 3291 | default: |
| 3292 | skip = TRUE; |
| 3293 | break; |
| 3294 | } |
| 3295 | |
| 3296 | if (skip) |
| 3297 | continue; |
| 3298 | |
| 3299 | /* Get the information for this symbol. */ |
| 3300 | value = esym.asym.value; |
| 3301 | switch (esym.asym.sc) |
| 3302 | { |
| 3303 | default: |
| 3304 | case scNil: |
| 3305 | case scRegister: |
| 3306 | case scCdbLocal: |
| 3307 | case scBits: |
| 3308 | case scCdbSystem: |
| 3309 | case scRegImage: |
| 3310 | case scInfo: |
| 3311 | case scUserStruct: |
| 3312 | case scVar: |
| 3313 | case scVarRegister: |
| 3314 | case scVariant: |
| 3315 | case scBasedVar: |
| 3316 | case scXData: |
| 3317 | case scPData: |
| 3318 | section = NULL; |
| 3319 | break; |
| 3320 | case scText: |
| 3321 | section = bfd_make_section_old_way (abfd, _TEXT); |
| 3322 | value -= section->vma; |
| 3323 | break; |
| 3324 | case scData: |
| 3325 | section = bfd_make_section_old_way (abfd, _DATA); |
| 3326 | value -= section->vma; |
| 3327 | break; |
| 3328 | case scBss: |
| 3329 | section = bfd_make_section_old_way (abfd, _BSS); |
| 3330 | value -= section->vma; |
| 3331 | break; |
| 3332 | case scAbs: |
| 3333 | section = bfd_abs_section_ptr; |
| 3334 | break; |
| 3335 | case scUndefined: |
| 3336 | section = bfd_und_section_ptr; |
| 3337 | break; |
| 3338 | case scSData: |
| 3339 | section = bfd_make_section_old_way (abfd, _SDATA); |
| 3340 | value -= section->vma; |
| 3341 | break; |
| 3342 | case scSBss: |
| 3343 | section = bfd_make_section_old_way (abfd, _SBSS); |
| 3344 | value -= section->vma; |
| 3345 | break; |
| 3346 | case scRData: |
| 3347 | section = bfd_make_section_old_way (abfd, _RDATA); |
| 3348 | value -= section->vma; |
| 3349 | break; |
| 3350 | case scCommon: |
| 3351 | if (value > ecoff_data (abfd)->gp_size) |
| 3352 | { |
| 3353 | section = bfd_com_section_ptr; |
| 3354 | break; |
| 3355 | } |
| 3356 | /* Fall through. */ |
| 3357 | case scSCommon: |
| 3358 | if (ecoff_scom_section.name == NULL) |
| 3359 | { |
| 3360 | /* Initialize the small common section. */ |
| 3361 | ecoff_scom_section.name = SCOMMON; |
| 3362 | ecoff_scom_section.flags = SEC_IS_COMMON; |
| 3363 | ecoff_scom_section.output_section = &ecoff_scom_section; |
| 3364 | ecoff_scom_section.symbol = &ecoff_scom_symbol; |
| 3365 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; |
| 3366 | ecoff_scom_symbol.name = SCOMMON; |
| 3367 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; |
| 3368 | ecoff_scom_symbol.section = &ecoff_scom_section; |
| 3369 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; |
| 3370 | } |
| 3371 | section = &ecoff_scom_section; |
| 3372 | break; |
| 3373 | case scSUndefined: |
| 3374 | section = bfd_und_section_ptr; |
| 3375 | break; |
| 3376 | case scInit: |
| 3377 | section = bfd_make_section_old_way (abfd, _INIT); |
| 3378 | value -= section->vma; |
| 3379 | break; |
| 3380 | case scFini: |
| 3381 | section = bfd_make_section_old_way (abfd, _FINI); |
| 3382 | value -= section->vma; |
| 3383 | break; |
| 3384 | case scRConst: |
| 3385 | section = bfd_make_section_old_way (abfd, _RCONST); |
| 3386 | value -= section->vma; |
| 3387 | break; |
| 3388 | } |
| 3389 | |
| 3390 | if (section == NULL) |
| 3391 | continue; |
| 3392 | |
| 3393 | name = ssext + esym.asym.iss; |
| 3394 | |
| 3395 | if (! (_bfd_generic_link_add_one_symbol |
| 3396 | (info, abfd, name, |
| 3397 | (flagword) (esym.weakext ? BSF_WEAK : BSF_GLOBAL), |
| 3398 | section, value, NULL, TRUE, TRUE, sym_hash))) |
| 3399 | return FALSE; |
| 3400 | |
| 3401 | h = (struct ecoff_link_hash_entry *) *sym_hash; |
| 3402 | |
| 3403 | /* If we are building an ECOFF hash table, save the external |
| 3404 | symbol information. */ |
| 3405 | if (bfd_get_flavour (info->output_bfd) == bfd_get_flavour (abfd)) |
| 3406 | { |
| 3407 | if (h->abfd == NULL |
| 3408 | || (! bfd_is_und_section (section) |
| 3409 | && (! bfd_is_com_section (section) |
| 3410 | || (h->root.type != bfd_link_hash_defined |
| 3411 | && h->root.type != bfd_link_hash_defweak)))) |
| 3412 | { |
| 3413 | h->abfd = abfd; |
| 3414 | h->esym = esym; |
| 3415 | } |
| 3416 | |
| 3417 | /* Remember whether this symbol was small undefined. */ |
| 3418 | if (esym.asym.sc == scSUndefined) |
| 3419 | h->small = 1; |
| 3420 | |
| 3421 | /* If this symbol was ever small undefined, it needs to wind |
| 3422 | up in a GP relative section. We can't control the |
| 3423 | section of a defined symbol, but we can control the |
| 3424 | section of a common symbol. This case is actually needed |
| 3425 | on Ultrix 4.2 to handle the symbol cred in -lckrb. */ |
| 3426 | if (h->small |
| 3427 | && h->root.type == bfd_link_hash_common |
| 3428 | && streq (h->root.u.c.p->section->name, SCOMMON)) |
| 3429 | { |
| 3430 | h->root.u.c.p->section = bfd_make_section_old_way (abfd, |
| 3431 | SCOMMON); |
| 3432 | h->root.u.c.p->section->flags = SEC_ALLOC; |
| 3433 | if (h->esym.asym.sc == scCommon) |
| 3434 | h->esym.asym.sc = scSCommon; |
| 3435 | } |
| 3436 | } |
| 3437 | } |
| 3438 | |
| 3439 | return TRUE; |
| 3440 | } |
| 3441 | |
| 3442 | /* Add symbols from an ECOFF object file to the global linker hash |
| 3443 | table. */ |
| 3444 | |
| 3445 | static bfd_boolean |
| 3446 | ecoff_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) |
| 3447 | { |
| 3448 | HDRR *symhdr; |
| 3449 | bfd_size_type external_ext_size; |
| 3450 | void * external_ext = NULL; |
| 3451 | bfd_size_type esize; |
| 3452 | char *ssext = NULL; |
| 3453 | bfd_boolean result; |
| 3454 | |
| 3455 | if (! ecoff_slurp_symbolic_header (abfd)) |
| 3456 | return FALSE; |
| 3457 | |
| 3458 | /* If there are no symbols, we don't want it. */ |
| 3459 | if (bfd_get_symcount (abfd) == 0) |
| 3460 | return TRUE; |
| 3461 | |
| 3462 | symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; |
| 3463 | |
| 3464 | /* Read in the external symbols and external strings. */ |
| 3465 | external_ext_size = ecoff_backend (abfd)->debug_swap.external_ext_size; |
| 3466 | esize = symhdr->iextMax * external_ext_size; |
| 3467 | external_ext = bfd_malloc (esize); |
| 3468 | if (external_ext == NULL && esize != 0) |
| 3469 | goto error_return; |
| 3470 | |
| 3471 | if (bfd_seek (abfd, (file_ptr) symhdr->cbExtOffset, SEEK_SET) != 0 |
| 3472 | || bfd_bread (external_ext, esize, abfd) != esize) |
| 3473 | goto error_return; |
| 3474 | |
| 3475 | ssext = (char *) bfd_malloc ((bfd_size_type) symhdr->issExtMax); |
| 3476 | if (ssext == NULL && symhdr->issExtMax != 0) |
| 3477 | goto error_return; |
| 3478 | |
| 3479 | if (bfd_seek (abfd, (file_ptr) symhdr->cbSsExtOffset, SEEK_SET) != 0 |
| 3480 | || (bfd_bread (ssext, (bfd_size_type) symhdr->issExtMax, abfd) |
| 3481 | != (bfd_size_type) symhdr->issExtMax)) |
| 3482 | goto error_return; |
| 3483 | |
| 3484 | result = ecoff_link_add_externals (abfd, info, external_ext, ssext); |
| 3485 | |
| 3486 | if (ssext != NULL) |
| 3487 | free (ssext); |
| 3488 | if (external_ext != NULL) |
| 3489 | free (external_ext); |
| 3490 | return result; |
| 3491 | |
| 3492 | error_return: |
| 3493 | if (ssext != NULL) |
| 3494 | free (ssext); |
| 3495 | if (external_ext != NULL) |
| 3496 | free (external_ext); |
| 3497 | return FALSE; |
| 3498 | } |
| 3499 | |
| 3500 | /* Factored out from ecoff_link_check_archive_element. */ |
| 3501 | |
| 3502 | static bfd_boolean |
| 3503 | read_ext_syms_and_strs (HDRR **symhdr, bfd_size_type *external_ext_size, |
| 3504 | bfd_size_type *esize, void **external_ext, char **ssext, bfd *abfd, |
| 3505 | const struct ecoff_backend_data * const backend) |
| 3506 | { |
| 3507 | if (! ecoff_slurp_symbolic_header (abfd)) |
| 3508 | return FALSE; |
| 3509 | |
| 3510 | /* If there are no symbols, we don't want it. */ |
| 3511 | if (bfd_get_symcount (abfd) == 0) |
| 3512 | return TRUE; |
| 3513 | |
| 3514 | *symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; |
| 3515 | |
| 3516 | *external_ext_size = backend->debug_swap.external_ext_size; |
| 3517 | *esize = (*symhdr)->iextMax * *external_ext_size; |
| 3518 | *external_ext = bfd_malloc (*esize); |
| 3519 | if (*external_ext == NULL && *esize != 0) |
| 3520 | return FALSE; |
| 3521 | |
| 3522 | if (bfd_seek (abfd, (file_ptr) (*symhdr)->cbExtOffset, SEEK_SET) != 0 |
| 3523 | || bfd_bread (*external_ext, *esize, abfd) != *esize) |
| 3524 | return FALSE; |
| 3525 | |
| 3526 | *ssext = (char *) bfd_malloc ((bfd_size_type) (*symhdr)->issExtMax); |
| 3527 | if (*ssext == NULL && (*symhdr)->issExtMax != 0) |
| 3528 | return FALSE; |
| 3529 | |
| 3530 | if (bfd_seek (abfd, (file_ptr) (*symhdr)->cbSsExtOffset, SEEK_SET) != 0 |
| 3531 | || (bfd_bread (*ssext, (bfd_size_type) (*symhdr)->issExtMax, abfd) |
| 3532 | != (bfd_size_type) (*symhdr)->issExtMax)) |
| 3533 | return FALSE; |
| 3534 | return TRUE; |
| 3535 | } |
| 3536 | |
| 3537 | static bfd_boolean |
| 3538 | reread_ext_syms_and_strs (HDRR **symhdr, bfd_size_type *external_ext_size, |
| 3539 | bfd_size_type *esize, void **external_ext, char **ssext, bfd *abfd, |
| 3540 | const struct ecoff_backend_data * const backend) |
| 3541 | { |
| 3542 | if (*external_ext != NULL) |
| 3543 | free (*external_ext); |
| 3544 | *external_ext = NULL; |
| 3545 | if (*ssext != NULL) |
| 3546 | free (*ssext); |
| 3547 | *ssext = NULL; |
| 3548 | return read_ext_syms_and_strs (symhdr, external_ext_size, esize, |
| 3549 | external_ext, ssext, abfd, backend); |
| 3550 | } |
| 3551 | |
| 3552 | /* This is called if we used _bfd_generic_link_add_archive_symbols |
| 3553 | because we were not dealing with an ECOFF archive. */ |
| 3554 | |
| 3555 | static bfd_boolean |
| 3556 | ecoff_link_check_archive_element (bfd *abfd, |
| 3557 | struct bfd_link_info *info, |
| 3558 | bfd_boolean *pneeded) |
| 3559 | { |
| 3560 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 3561 | void (* const swap_ext_in) (bfd *, void *, EXTR *) |
| 3562 | = backend->debug_swap.swap_ext_in; |
| 3563 | HDRR *symhdr; |
| 3564 | bfd_size_type external_ext_size = 0; |
| 3565 | void * external_ext = NULL; |
| 3566 | bfd_size_type esize = 0; |
| 3567 | char *ssext = NULL; |
| 3568 | char *ext_ptr; |
| 3569 | char *ext_end; |
| 3570 | |
| 3571 | *pneeded = FALSE; |
| 3572 | |
| 3573 | /* Read in the external symbols and external strings. */ |
| 3574 | if (!read_ext_syms_and_strs (&symhdr, &external_ext_size, &esize, |
| 3575 | &external_ext, &ssext, abfd, backend)) |
| 3576 | goto error_return; |
| 3577 | |
| 3578 | /* If there are no symbols, we don't want it. */ |
| 3579 | if (bfd_get_symcount (abfd) == 0) |
| 3580 | goto successful_return; |
| 3581 | |
| 3582 | /* Look through the external symbols to see if they define some |
| 3583 | symbol that is currently undefined. */ |
| 3584 | ext_ptr = (char *) external_ext; |
| 3585 | ext_end = ext_ptr + esize; |
| 3586 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size) |
| 3587 | { |
| 3588 | EXTR esym; |
| 3589 | bfd_boolean def; |
| 3590 | const char *name; |
| 3591 | bfd *oldbfd; |
| 3592 | struct bfd_link_hash_entry *h; |
| 3593 | |
| 3594 | (*swap_ext_in) (abfd, (void *) ext_ptr, &esym); |
| 3595 | |
| 3596 | /* See if this symbol defines something. */ |
| 3597 | if (esym.asym.st != stGlobal |
| 3598 | && esym.asym.st != stLabel |
| 3599 | && esym.asym.st != stProc) |
| 3600 | continue; |
| 3601 | |
| 3602 | switch (esym.asym.sc) |
| 3603 | { |
| 3604 | case scText: |
| 3605 | case scData: |
| 3606 | case scBss: |
| 3607 | case scAbs: |
| 3608 | case scSData: |
| 3609 | case scSBss: |
| 3610 | case scRData: |
| 3611 | case scCommon: |
| 3612 | case scSCommon: |
| 3613 | case scInit: |
| 3614 | case scFini: |
| 3615 | case scRConst: |
| 3616 | def = TRUE; |
| 3617 | break; |
| 3618 | default: |
| 3619 | def = FALSE; |
| 3620 | break; |
| 3621 | } |
| 3622 | |
| 3623 | if (! def) |
| 3624 | continue; |
| 3625 | |
| 3626 | name = ssext + esym.asym.iss; |
| 3627 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); |
| 3628 | |
| 3629 | /* Unlike the generic linker, we do not pull in elements because |
| 3630 | of common symbols. */ |
| 3631 | if (h == NULL |
| 3632 | || h->type != bfd_link_hash_undefined) |
| 3633 | continue; |
| 3634 | |
| 3635 | /* Include this element. */ |
| 3636 | oldbfd = abfd; |
| 3637 | if (!(*info->callbacks |
| 3638 | ->add_archive_element) (info, abfd, name, &abfd)) |
| 3639 | goto error_return; |
| 3640 | /* Potentially, the add_archive_element hook may have set a |
| 3641 | substitute BFD for us. */ |
| 3642 | if (abfd != oldbfd |
| 3643 | && !reread_ext_syms_and_strs (&symhdr, &external_ext_size, &esize, |
| 3644 | &external_ext, &ssext, abfd, backend)) |
| 3645 | goto error_return; |
| 3646 | if (! ecoff_link_add_externals (abfd, info, external_ext, ssext)) |
| 3647 | goto error_return; |
| 3648 | |
| 3649 | *pneeded = TRUE; |
| 3650 | goto successful_return; |
| 3651 | } |
| 3652 | |
| 3653 | successful_return: |
| 3654 | if (external_ext != NULL) |
| 3655 | free (external_ext); |
| 3656 | if (ssext != NULL) |
| 3657 | free (ssext); |
| 3658 | return TRUE; |
| 3659 | error_return: |
| 3660 | if (external_ext != NULL) |
| 3661 | free (external_ext); |
| 3662 | if (ssext != NULL) |
| 3663 | free (ssext); |
| 3664 | return FALSE; |
| 3665 | } |
| 3666 | |
| 3667 | /* Add the symbols from an archive file to the global hash table. |
| 3668 | This looks through the undefined symbols, looks each one up in the |
| 3669 | archive hash table, and adds any associated object file. We do not |
| 3670 | use _bfd_generic_link_add_archive_symbols because ECOFF archives |
| 3671 | already have a hash table, so there is no reason to construct |
| 3672 | another one. */ |
| 3673 | |
| 3674 | static bfd_boolean |
| 3675 | ecoff_link_add_archive_symbols (bfd *abfd, struct bfd_link_info *info) |
| 3676 | { |
| 3677 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 3678 | const bfd_byte *raw_armap; |
| 3679 | struct bfd_link_hash_entry **pundef; |
| 3680 | unsigned int armap_count; |
| 3681 | unsigned int armap_log; |
| 3682 | unsigned int i; |
| 3683 | const bfd_byte *hashtable; |
| 3684 | const char *stringbase; |
| 3685 | |
| 3686 | if (! bfd_has_map (abfd)) |
| 3687 | { |
| 3688 | /* An empty archive is a special case. */ |
| 3689 | if (bfd_openr_next_archived_file (abfd, NULL) == NULL) |
| 3690 | return TRUE; |
| 3691 | bfd_set_error (bfd_error_no_armap); |
| 3692 | return FALSE; |
| 3693 | } |
| 3694 | |
| 3695 | /* If we don't have any raw data for this archive, as can happen on |
| 3696 | Irix 4.0.5F, we call the generic routine. |
| 3697 | FIXME: We should be more clever about this, since someday tdata |
| 3698 | may get to something for a generic archive. */ |
| 3699 | raw_armap = (const bfd_byte *) bfd_ardata (abfd)->tdata; |
| 3700 | if (raw_armap == NULL) |
| 3701 | return (_bfd_generic_link_add_archive_symbols |
| 3702 | (abfd, info, ecoff_link_check_archive_element)); |
| 3703 | |
| 3704 | armap_count = H_GET_32 (abfd, raw_armap); |
| 3705 | |
| 3706 | armap_log = 0; |
| 3707 | for (i = 1; i < armap_count; i <<= 1) |
| 3708 | armap_log++; |
| 3709 | BFD_ASSERT (i == armap_count); |
| 3710 | |
| 3711 | hashtable = raw_armap + 4; |
| 3712 | stringbase = (const char *) raw_armap + armap_count * 8 + 8; |
| 3713 | |
| 3714 | /* Look through the list of undefined symbols. */ |
| 3715 | pundef = &info->hash->undefs; |
| 3716 | while (*pundef != NULL) |
| 3717 | { |
| 3718 | struct bfd_link_hash_entry *h; |
| 3719 | unsigned int hash, rehash = 0; |
| 3720 | unsigned int file_offset; |
| 3721 | const char *name; |
| 3722 | bfd *element; |
| 3723 | |
| 3724 | h = *pundef; |
| 3725 | |
| 3726 | /* When a symbol is defined, it is not necessarily removed from |
| 3727 | the list. */ |
| 3728 | if (h->type != bfd_link_hash_undefined |
| 3729 | && h->type != bfd_link_hash_common) |
| 3730 | { |
| 3731 | /* Remove this entry from the list, for general cleanliness |
| 3732 | and because we are going to look through the list again |
| 3733 | if we search any more libraries. We can't remove the |
| 3734 | entry if it is the tail, because that would lose any |
| 3735 | entries we add to the list later on. */ |
| 3736 | if (*pundef != info->hash->undefs_tail) |
| 3737 | *pundef = (*pundef)->u.undef.next; |
| 3738 | else |
| 3739 | pundef = &(*pundef)->u.undef.next; |
| 3740 | continue; |
| 3741 | } |
| 3742 | |
| 3743 | /* Native ECOFF linkers do not pull in archive elements merely |
| 3744 | to satisfy common definitions, so neither do we. We leave |
| 3745 | them on the list, though, in case we are linking against some |
| 3746 | other object format. */ |
| 3747 | if (h->type != bfd_link_hash_undefined) |
| 3748 | { |
| 3749 | pundef = &(*pundef)->u.undef.next; |
| 3750 | continue; |
| 3751 | } |
| 3752 | |
| 3753 | /* Look for this symbol in the archive hash table. */ |
| 3754 | hash = ecoff_armap_hash (h->root.string, &rehash, armap_count, |
| 3755 | armap_log); |
| 3756 | |
| 3757 | file_offset = H_GET_32 (abfd, hashtable + (hash * 8) + 4); |
| 3758 | if (file_offset == 0) |
| 3759 | { |
| 3760 | /* Nothing in this slot. */ |
| 3761 | pundef = &(*pundef)->u.undef.next; |
| 3762 | continue; |
| 3763 | } |
| 3764 | |
| 3765 | name = stringbase + H_GET_32 (abfd, hashtable + (hash * 8)); |
| 3766 | if (name[0] != h->root.string[0] |
| 3767 | || ! streq (name, h->root.string)) |
| 3768 | { |
| 3769 | unsigned int srch; |
| 3770 | bfd_boolean found; |
| 3771 | |
| 3772 | /* That was the wrong symbol. Try rehashing. */ |
| 3773 | found = FALSE; |
| 3774 | for (srch = (hash + rehash) & (armap_count - 1); |
| 3775 | srch != hash; |
| 3776 | srch = (srch + rehash) & (armap_count - 1)) |
| 3777 | { |
| 3778 | file_offset = H_GET_32 (abfd, hashtable + (srch * 8) + 4); |
| 3779 | if (file_offset == 0) |
| 3780 | break; |
| 3781 | name = stringbase + H_GET_32 (abfd, hashtable + (srch * 8)); |
| 3782 | if (name[0] == h->root.string[0] |
| 3783 | && streq (name, h->root.string)) |
| 3784 | { |
| 3785 | found = TRUE; |
| 3786 | break; |
| 3787 | } |
| 3788 | } |
| 3789 | |
| 3790 | if (! found) |
| 3791 | { |
| 3792 | pundef = &(*pundef)->u.undef.next; |
| 3793 | continue; |
| 3794 | } |
| 3795 | |
| 3796 | hash = srch; |
| 3797 | } |
| 3798 | |
| 3799 | element = (*backend->get_elt_at_filepos) (abfd, (file_ptr) file_offset); |
| 3800 | if (element == NULL) |
| 3801 | return FALSE; |
| 3802 | |
| 3803 | if (! bfd_check_format (element, bfd_object)) |
| 3804 | return FALSE; |
| 3805 | |
| 3806 | /* Unlike the generic linker, we know that this element provides |
| 3807 | a definition for an undefined symbol and we know that we want |
| 3808 | to include it. We don't need to check anything. */ |
| 3809 | if (!(*info->callbacks |
| 3810 | ->add_archive_element) (info, element, name, &element)) |
| 3811 | return FALSE; |
| 3812 | if (! ecoff_link_add_object_symbols (element, info)) |
| 3813 | return FALSE; |
| 3814 | |
| 3815 | pundef = &(*pundef)->u.undef.next; |
| 3816 | } |
| 3817 | |
| 3818 | return TRUE; |
| 3819 | } |
| 3820 | |
| 3821 | /* Given an ECOFF BFD, add symbols to the global hash table as |
| 3822 | appropriate. */ |
| 3823 | |
| 3824 | bfd_boolean |
| 3825 | _bfd_ecoff_bfd_link_add_symbols (bfd *abfd, struct bfd_link_info *info) |
| 3826 | { |
| 3827 | switch (bfd_get_format (abfd)) |
| 3828 | { |
| 3829 | case bfd_object: |
| 3830 | return ecoff_link_add_object_symbols (abfd, info); |
| 3831 | case bfd_archive: |
| 3832 | return ecoff_link_add_archive_symbols (abfd, info); |
| 3833 | default: |
| 3834 | bfd_set_error (bfd_error_wrong_format); |
| 3835 | return FALSE; |
| 3836 | } |
| 3837 | } |
| 3838 | |
| 3839 | \f |
| 3840 | /* ECOFF final link routines. */ |
| 3841 | |
| 3842 | /* Structure used to pass information to ecoff_link_write_external. */ |
| 3843 | |
| 3844 | struct extsym_info |
| 3845 | { |
| 3846 | bfd *abfd; |
| 3847 | struct bfd_link_info *info; |
| 3848 | }; |
| 3849 | |
| 3850 | /* Accumulate the debugging information for an input BFD into the |
| 3851 | output BFD. This must read in the symbolic information of the |
| 3852 | input BFD. */ |
| 3853 | |
| 3854 | static bfd_boolean |
| 3855 | ecoff_final_link_debug_accumulate (bfd *output_bfd, |
| 3856 | bfd *input_bfd, |
| 3857 | struct bfd_link_info *info, |
| 3858 | void * handle) |
| 3859 | { |
| 3860 | struct ecoff_debug_info * const debug = &ecoff_data (input_bfd)->debug_info; |
| 3861 | const struct ecoff_debug_swap * const swap = |
| 3862 | &ecoff_backend (input_bfd)->debug_swap; |
| 3863 | HDRR *symhdr = &debug->symbolic_header; |
| 3864 | bfd_boolean ret; |
| 3865 | |
| 3866 | #define READ(ptr, offset, count, size, type) \ |
| 3867 | if (symhdr->count == 0) \ |
| 3868 | debug->ptr = NULL; \ |
| 3869 | else \ |
| 3870 | { \ |
| 3871 | bfd_size_type amt = (bfd_size_type) size * symhdr->count; \ |
| 3872 | debug->ptr = (type) bfd_malloc (amt); \ |
| 3873 | if (debug->ptr == NULL) \ |
| 3874 | { \ |
| 3875 | ret = FALSE; \ |
| 3876 | goto return_something; \ |
| 3877 | } \ |
| 3878 | if (bfd_seek (input_bfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \ |
| 3879 | || bfd_bread (debug->ptr, amt, input_bfd) != amt) \ |
| 3880 | { \ |
| 3881 | ret = FALSE; \ |
| 3882 | goto return_something; \ |
| 3883 | } \ |
| 3884 | } |
| 3885 | |
| 3886 | /* If raw_syments is not NULL, then the data was already by read by |
| 3887 | _bfd_ecoff_slurp_symbolic_info. */ |
| 3888 | if (ecoff_data (input_bfd)->raw_syments == NULL) |
| 3889 | { |
| 3890 | READ (line, cbLineOffset, cbLine, sizeof (unsigned char), |
| 3891 | unsigned char *); |
| 3892 | READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, void *); |
| 3893 | READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, void *); |
| 3894 | READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, void *); |
| 3895 | READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, void *); |
| 3896 | READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext), |
| 3897 | union aux_ext *); |
| 3898 | READ (ss, cbSsOffset, issMax, sizeof (char), char *); |
| 3899 | READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, void *); |
| 3900 | READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, void *); |
| 3901 | } |
| 3902 | #undef READ |
| 3903 | |
| 3904 | /* We do not read the external strings or the external symbols. */ |
| 3905 | |
| 3906 | ret = (bfd_ecoff_debug_accumulate |
| 3907 | (handle, output_bfd, &ecoff_data (output_bfd)->debug_info, |
| 3908 | &ecoff_backend (output_bfd)->debug_swap, |
| 3909 | input_bfd, debug, swap, info)); |
| 3910 | |
| 3911 | return_something: |
| 3912 | if (ecoff_data (input_bfd)->raw_syments == NULL) |
| 3913 | { |
| 3914 | if (debug->line != NULL) |
| 3915 | free (debug->line); |
| 3916 | if (debug->external_dnr != NULL) |
| 3917 | free (debug->external_dnr); |
| 3918 | if (debug->external_pdr != NULL) |
| 3919 | free (debug->external_pdr); |
| 3920 | if (debug->external_sym != NULL) |
| 3921 | free (debug->external_sym); |
| 3922 | if (debug->external_opt != NULL) |
| 3923 | free (debug->external_opt); |
| 3924 | if (debug->external_aux != NULL) |
| 3925 | free (debug->external_aux); |
| 3926 | if (debug->ss != NULL) |
| 3927 | free (debug->ss); |
| 3928 | if (debug->external_fdr != NULL) |
| 3929 | free (debug->external_fdr); |
| 3930 | if (debug->external_rfd != NULL) |
| 3931 | free (debug->external_rfd); |
| 3932 | |
| 3933 | /* Make sure we don't accidentally follow one of these pointers |
| 3934 | into freed memory. */ |
| 3935 | debug->line = NULL; |
| 3936 | debug->external_dnr = NULL; |
| 3937 | debug->external_pdr = NULL; |
| 3938 | debug->external_sym = NULL; |
| 3939 | debug->external_opt = NULL; |
| 3940 | debug->external_aux = NULL; |
| 3941 | debug->ss = NULL; |
| 3942 | debug->external_fdr = NULL; |
| 3943 | debug->external_rfd = NULL; |
| 3944 | } |
| 3945 | |
| 3946 | return ret; |
| 3947 | } |
| 3948 | |
| 3949 | /* Relocate and write an ECOFF section into an ECOFF output file. */ |
| 3950 | |
| 3951 | static bfd_boolean |
| 3952 | ecoff_indirect_link_order (bfd *output_bfd, |
| 3953 | struct bfd_link_info *info, |
| 3954 | asection *output_section, |
| 3955 | struct bfd_link_order *link_order) |
| 3956 | { |
| 3957 | asection *input_section; |
| 3958 | bfd *input_bfd; |
| 3959 | bfd_byte *contents = NULL; |
| 3960 | bfd_size_type external_reloc_size; |
| 3961 | bfd_size_type external_relocs_size; |
| 3962 | void * external_relocs = NULL; |
| 3963 | |
| 3964 | BFD_ASSERT ((output_section->flags & SEC_HAS_CONTENTS) != 0); |
| 3965 | |
| 3966 | input_section = link_order->u.indirect.section; |
| 3967 | input_bfd = input_section->owner; |
| 3968 | if (input_section->size == 0) |
| 3969 | return TRUE; |
| 3970 | |
| 3971 | BFD_ASSERT (input_section->output_section == output_section); |
| 3972 | BFD_ASSERT (input_section->output_offset == link_order->offset); |
| 3973 | BFD_ASSERT (input_section->size == link_order->size); |
| 3974 | |
| 3975 | /* Get the section contents. */ |
| 3976 | if (!bfd_malloc_and_get_section (input_bfd, input_section, &contents)) |
| 3977 | goto error_return; |
| 3978 | |
| 3979 | /* Get the relocs. If we are relaxing MIPS code, they will already |
| 3980 | have been read in. Otherwise, we read them in now. */ |
| 3981 | external_reloc_size = ecoff_backend (input_bfd)->external_reloc_size; |
| 3982 | external_relocs_size = external_reloc_size * input_section->reloc_count; |
| 3983 | |
| 3984 | external_relocs = bfd_malloc (external_relocs_size); |
| 3985 | if (external_relocs == NULL && external_relocs_size != 0) |
| 3986 | goto error_return; |
| 3987 | |
| 3988 | if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0 |
| 3989 | || (bfd_bread (external_relocs, external_relocs_size, input_bfd) |
| 3990 | != external_relocs_size)) |
| 3991 | goto error_return; |
| 3992 | |
| 3993 | /* Relocate the section contents. */ |
| 3994 | if (! ((*ecoff_backend (input_bfd)->relocate_section) |
| 3995 | (output_bfd, info, input_bfd, input_section, contents, |
| 3996 | external_relocs))) |
| 3997 | goto error_return; |
| 3998 | |
| 3999 | /* Write out the relocated section. */ |
| 4000 | if (! bfd_set_section_contents (output_bfd, |
| 4001 | output_section, |
| 4002 | contents, |
| 4003 | input_section->output_offset, |
| 4004 | input_section->size)) |
| 4005 | goto error_return; |
| 4006 | |
| 4007 | /* If we are producing relocatable output, the relocs were |
| 4008 | modified, and we write them out now. We use the reloc_count |
| 4009 | field of output_section to keep track of the number of relocs we |
| 4010 | have output so far. */ |
| 4011 | if (info->relocatable) |
| 4012 | { |
| 4013 | file_ptr pos = (output_section->rel_filepos |
| 4014 | + output_section->reloc_count * external_reloc_size); |
| 4015 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 |
| 4016 | || (bfd_bwrite (external_relocs, external_relocs_size, output_bfd) |
| 4017 | != external_relocs_size)) |
| 4018 | goto error_return; |
| 4019 | output_section->reloc_count += input_section->reloc_count; |
| 4020 | } |
| 4021 | |
| 4022 | if (contents != NULL) |
| 4023 | free (contents); |
| 4024 | if (external_relocs != NULL) |
| 4025 | free (external_relocs); |
| 4026 | return TRUE; |
| 4027 | |
| 4028 | error_return: |
| 4029 | if (contents != NULL) |
| 4030 | free (contents); |
| 4031 | if (external_relocs != NULL) |
| 4032 | free (external_relocs); |
| 4033 | return FALSE; |
| 4034 | } |
| 4035 | |
| 4036 | /* Generate a reloc when linking an ECOFF file. This is a reloc |
| 4037 | requested by the linker, and does come from any input file. This |
| 4038 | is used to build constructor and destructor tables when linking |
| 4039 | with -Ur. */ |
| 4040 | |
| 4041 | static bfd_boolean |
| 4042 | ecoff_reloc_link_order (bfd *output_bfd, |
| 4043 | struct bfd_link_info *info, |
| 4044 | asection *output_section, |
| 4045 | struct bfd_link_order *link_order) |
| 4046 | { |
| 4047 | enum bfd_link_order_type type; |
| 4048 | asection *section; |
| 4049 | bfd_vma addend; |
| 4050 | arelent rel; |
| 4051 | struct internal_reloc in; |
| 4052 | bfd_size_type external_reloc_size; |
| 4053 | bfd_byte *rbuf; |
| 4054 | bfd_boolean ok; |
| 4055 | file_ptr pos; |
| 4056 | |
| 4057 | type = link_order->type; |
| 4058 | section = NULL; |
| 4059 | addend = link_order->u.reloc.p->addend; |
| 4060 | |
| 4061 | /* We set up an arelent to pass to the backend adjust_reloc_out |
| 4062 | routine. */ |
| 4063 | rel.address = link_order->offset; |
| 4064 | |
| 4065 | rel.howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); |
| 4066 | if (rel.howto == 0) |
| 4067 | { |
| 4068 | bfd_set_error (bfd_error_bad_value); |
| 4069 | return FALSE; |
| 4070 | } |
| 4071 | |
| 4072 | if (type == bfd_section_reloc_link_order) |
| 4073 | { |
| 4074 | section = link_order->u.reloc.p->u.section; |
| 4075 | rel.sym_ptr_ptr = section->symbol_ptr_ptr; |
| 4076 | } |
| 4077 | else |
| 4078 | { |
| 4079 | struct bfd_link_hash_entry *h; |
| 4080 | |
| 4081 | /* Treat a reloc against a defined symbol as though it were |
| 4082 | actually against the section. */ |
| 4083 | h = bfd_wrapped_link_hash_lookup (output_bfd, info, |
| 4084 | link_order->u.reloc.p->u.name, |
| 4085 | FALSE, FALSE, FALSE); |
| 4086 | if (h != NULL |
| 4087 | && (h->type == bfd_link_hash_defined |
| 4088 | || h->type == bfd_link_hash_defweak)) |
| 4089 | { |
| 4090 | type = bfd_section_reloc_link_order; |
| 4091 | section = h->u.def.section->output_section; |
| 4092 | /* It seems that we ought to add the symbol value to the |
| 4093 | addend here, but in practice it has already been added |
| 4094 | because it was passed to constructor_callback. */ |
| 4095 | addend += section->vma + h->u.def.section->output_offset; |
| 4096 | } |
| 4097 | else |
| 4098 | { |
| 4099 | /* We can't set up a reloc against a symbol correctly, |
| 4100 | because we have no asymbol structure. Currently no |
| 4101 | adjust_reloc_out routine cares. */ |
| 4102 | rel.sym_ptr_ptr = NULL; |
| 4103 | } |
| 4104 | } |
| 4105 | |
| 4106 | /* All ECOFF relocs are in-place. Put the addend into the object |
| 4107 | file. */ |
| 4108 | |
| 4109 | BFD_ASSERT (rel.howto->partial_inplace); |
| 4110 | if (addend != 0) |
| 4111 | { |
| 4112 | bfd_size_type size; |
| 4113 | bfd_reloc_status_type rstat; |
| 4114 | bfd_byte *buf; |
| 4115 | |
| 4116 | size = bfd_get_reloc_size (rel.howto); |
| 4117 | buf = (bfd_byte *) bfd_zmalloc (size); |
| 4118 | if (buf == NULL) |
| 4119 | return FALSE; |
| 4120 | rstat = _bfd_relocate_contents (rel.howto, output_bfd, |
| 4121 | (bfd_vma) addend, buf); |
| 4122 | switch (rstat) |
| 4123 | { |
| 4124 | case bfd_reloc_ok: |
| 4125 | break; |
| 4126 | default: |
| 4127 | case bfd_reloc_outofrange: |
| 4128 | abort (); |
| 4129 | case bfd_reloc_overflow: |
| 4130 | if (! ((*info->callbacks->reloc_overflow) |
| 4131 | (info, NULL, |
| 4132 | (link_order->type == bfd_section_reloc_link_order |
| 4133 | ? bfd_section_name (output_bfd, section) |
| 4134 | : link_order->u.reloc.p->u.name), |
| 4135 | rel.howto->name, addend, NULL, |
| 4136 | NULL, (bfd_vma) 0))) |
| 4137 | { |
| 4138 | free (buf); |
| 4139 | return FALSE; |
| 4140 | } |
| 4141 | break; |
| 4142 | } |
| 4143 | ok = bfd_set_section_contents (output_bfd, output_section, (void *) buf, |
| 4144 | (file_ptr) link_order->offset, size); |
| 4145 | free (buf); |
| 4146 | if (! ok) |
| 4147 | return FALSE; |
| 4148 | } |
| 4149 | |
| 4150 | rel.addend = 0; |
| 4151 | |
| 4152 | /* Move the information into an internal_reloc structure. */ |
| 4153 | in.r_vaddr = (rel.address |
| 4154 | + bfd_get_section_vma (output_bfd, output_section)); |
| 4155 | in.r_type = rel.howto->type; |
| 4156 | |
| 4157 | if (type == bfd_symbol_reloc_link_order) |
| 4158 | { |
| 4159 | struct ecoff_link_hash_entry *h; |
| 4160 | |
| 4161 | h = ((struct ecoff_link_hash_entry *) |
| 4162 | bfd_wrapped_link_hash_lookup (output_bfd, info, |
| 4163 | link_order->u.reloc.p->u.name, |
| 4164 | FALSE, FALSE, TRUE)); |
| 4165 | if (h != NULL |
| 4166 | && h->indx != -1) |
| 4167 | in.r_symndx = h->indx; |
| 4168 | else |
| 4169 | { |
| 4170 | if (! ((*info->callbacks->unattached_reloc) |
| 4171 | (info, link_order->u.reloc.p->u.name, NULL, |
| 4172 | NULL, (bfd_vma) 0))) |
| 4173 | return FALSE; |
| 4174 | in.r_symndx = 0; |
| 4175 | } |
| 4176 | in.r_extern = 1; |
| 4177 | } |
| 4178 | else |
| 4179 | { |
| 4180 | const char *name; |
| 4181 | unsigned int i; |
| 4182 | static struct |
| 4183 | { |
| 4184 | const char * name; |
| 4185 | long r_symndx; |
| 4186 | } |
| 4187 | section_symndx [] = |
| 4188 | { |
| 4189 | { _TEXT, RELOC_SECTION_TEXT }, |
| 4190 | { _RDATA, RELOC_SECTION_RDATA }, |
| 4191 | { _DATA, RELOC_SECTION_DATA }, |
| 4192 | { _SDATA, RELOC_SECTION_SDATA }, |
| 4193 | { _SBSS, RELOC_SECTION_SBSS }, |
| 4194 | { _BSS, RELOC_SECTION_BSS }, |
| 4195 | { _INIT, RELOC_SECTION_INIT }, |
| 4196 | { _LIT8, RELOC_SECTION_LIT8 }, |
| 4197 | { _LIT4, RELOC_SECTION_LIT4 }, |
| 4198 | { _XDATA, RELOC_SECTION_XDATA }, |
| 4199 | { _PDATA, RELOC_SECTION_PDATA }, |
| 4200 | { _FINI, RELOC_SECTION_FINI }, |
| 4201 | { _LITA, RELOC_SECTION_LITA }, |
| 4202 | { "*ABS*", RELOC_SECTION_ABS }, |
| 4203 | { _RCONST, RELOC_SECTION_RCONST } |
| 4204 | }; |
| 4205 | |
| 4206 | name = bfd_get_section_name (output_bfd, section); |
| 4207 | |
| 4208 | for (i = 0; i < ARRAY_SIZE (section_symndx); i++) |
| 4209 | if (streq (name, section_symndx[i].name)) |
| 4210 | { |
| 4211 | in.r_symndx = section_symndx[i].r_symndx; |
| 4212 | break; |
| 4213 | } |
| 4214 | |
| 4215 | if (i == ARRAY_SIZE (section_symndx)) |
| 4216 | abort (); |
| 4217 | |
| 4218 | in.r_extern = 0; |
| 4219 | } |
| 4220 | |
| 4221 | /* Let the BFD backend adjust the reloc. */ |
| 4222 | (*ecoff_backend (output_bfd)->adjust_reloc_out) (output_bfd, &rel, &in); |
| 4223 | |
| 4224 | /* Get some memory and swap out the reloc. */ |
| 4225 | external_reloc_size = ecoff_backend (output_bfd)->external_reloc_size; |
| 4226 | rbuf = (bfd_byte *) bfd_malloc (external_reloc_size); |
| 4227 | if (rbuf == NULL) |
| 4228 | return FALSE; |
| 4229 | |
| 4230 | (*ecoff_backend (output_bfd)->swap_reloc_out) (output_bfd, &in, (void *) rbuf); |
| 4231 | |
| 4232 | pos = (output_section->rel_filepos |
| 4233 | + output_section->reloc_count * external_reloc_size); |
| 4234 | ok = (bfd_seek (output_bfd, pos, SEEK_SET) == 0 |
| 4235 | && (bfd_bwrite ((void *) rbuf, external_reloc_size, output_bfd) |
| 4236 | == external_reloc_size)); |
| 4237 | |
| 4238 | if (ok) |
| 4239 | ++output_section->reloc_count; |
| 4240 | |
| 4241 | free (rbuf); |
| 4242 | |
| 4243 | return ok; |
| 4244 | } |
| 4245 | |
| 4246 | /* Put out information for an external symbol. These come only from |
| 4247 | the hash table. */ |
| 4248 | |
| 4249 | static bfd_boolean |
| 4250 | ecoff_link_write_external (struct bfd_hash_entry *bh, void * data) |
| 4251 | { |
| 4252 | struct ecoff_link_hash_entry *h = (struct ecoff_link_hash_entry *) bh; |
| 4253 | struct extsym_info *einfo = (struct extsym_info *) data; |
| 4254 | bfd *output_bfd = einfo->abfd; |
| 4255 | bfd_boolean strip; |
| 4256 | |
| 4257 | if (h->root.type == bfd_link_hash_warning) |
| 4258 | { |
| 4259 | h = (struct ecoff_link_hash_entry *) h->root.u.i.link; |
| 4260 | if (h->root.type == bfd_link_hash_new) |
| 4261 | return TRUE; |
| 4262 | } |
| 4263 | |
| 4264 | /* We need to check if this symbol is being stripped. */ |
| 4265 | if (h->root.type == bfd_link_hash_undefined |
| 4266 | || h->root.type == bfd_link_hash_undefweak) |
| 4267 | strip = FALSE; |
| 4268 | else if (einfo->info->strip == strip_all |
| 4269 | || (einfo->info->strip == strip_some |
| 4270 | && bfd_hash_lookup (einfo->info->keep_hash, |
| 4271 | h->root.root.string, |
| 4272 | FALSE, FALSE) == NULL)) |
| 4273 | strip = TRUE; |
| 4274 | else |
| 4275 | strip = FALSE; |
| 4276 | |
| 4277 | if (strip || h->written) |
| 4278 | return TRUE; |
| 4279 | |
| 4280 | if (h->abfd == NULL) |
| 4281 | { |
| 4282 | h->esym.jmptbl = 0; |
| 4283 | h->esym.cobol_main = 0; |
| 4284 | h->esym.weakext = 0; |
| 4285 | h->esym.reserved = 0; |
| 4286 | h->esym.ifd = ifdNil; |
| 4287 | h->esym.asym.value = 0; |
| 4288 | h->esym.asym.st = stGlobal; |
| 4289 | |
| 4290 | if (h->root.type != bfd_link_hash_defined |
| 4291 | && h->root.type != bfd_link_hash_defweak) |
| 4292 | h->esym.asym.sc = scAbs; |
| 4293 | else |
| 4294 | { |
| 4295 | asection *output_section; |
| 4296 | const char *name; |
| 4297 | unsigned int i; |
| 4298 | static struct |
| 4299 | { |
| 4300 | const char * name; |
| 4301 | int sc; |
| 4302 | } |
| 4303 | section_storage_classes [] = |
| 4304 | { |
| 4305 | { _TEXT, scText }, |
| 4306 | { _DATA, scData }, |
| 4307 | { _SDATA, scSData }, |
| 4308 | { _RDATA, scRData }, |
| 4309 | { _BSS, scBss }, |
| 4310 | { _SBSS, scSBss }, |
| 4311 | { _INIT, scInit }, |
| 4312 | { _FINI, scFini }, |
| 4313 | { _PDATA, scPData }, |
| 4314 | { _XDATA, scXData }, |
| 4315 | { _RCONST, scRConst } |
| 4316 | }; |
| 4317 | |
| 4318 | output_section = h->root.u.def.section->output_section; |
| 4319 | name = bfd_section_name (output_section->owner, output_section); |
| 4320 | |
| 4321 | for (i = 0; i < ARRAY_SIZE (section_storage_classes); i++) |
| 4322 | if (streq (name, section_storage_classes[i].name)) |
| 4323 | { |
| 4324 | h->esym.asym.sc = section_storage_classes[i].sc; |
| 4325 | break; |
| 4326 | } |
| 4327 | |
| 4328 | if (i == ARRAY_SIZE (section_storage_classes)) |
| 4329 | h->esym.asym.sc = scAbs; |
| 4330 | } |
| 4331 | |
| 4332 | h->esym.asym.reserved = 0; |
| 4333 | h->esym.asym.index = indexNil; |
| 4334 | } |
| 4335 | else if (h->esym.ifd != -1) |
| 4336 | { |
| 4337 | struct ecoff_debug_info *debug; |
| 4338 | |
| 4339 | /* Adjust the FDR index for the symbol by that used for the |
| 4340 | input BFD. */ |
| 4341 | debug = &ecoff_data (h->abfd)->debug_info; |
| 4342 | BFD_ASSERT (h->esym.ifd >= 0 |
| 4343 | && h->esym.ifd < debug->symbolic_header.ifdMax); |
| 4344 | h->esym.ifd = debug->ifdmap[h->esym.ifd]; |
| 4345 | } |
| 4346 | |
| 4347 | switch (h->root.type) |
| 4348 | { |
| 4349 | default: |
| 4350 | case bfd_link_hash_warning: |
| 4351 | case bfd_link_hash_new: |
| 4352 | abort (); |
| 4353 | case bfd_link_hash_undefined: |
| 4354 | case bfd_link_hash_undefweak: |
| 4355 | if (h->esym.asym.sc != scUndefined |
| 4356 | && h->esym.asym.sc != scSUndefined) |
| 4357 | h->esym.asym.sc = scUndefined; |
| 4358 | break; |
| 4359 | case bfd_link_hash_defined: |
| 4360 | case bfd_link_hash_defweak: |
| 4361 | if (h->esym.asym.sc == scUndefined |
| 4362 | || h->esym.asym.sc == scSUndefined) |
| 4363 | h->esym.asym.sc = scAbs; |
| 4364 | else if (h->esym.asym.sc == scCommon) |
| 4365 | h->esym.asym.sc = scBss; |
| 4366 | else if (h->esym.asym.sc == scSCommon) |
| 4367 | h->esym.asym.sc = scSBss; |
| 4368 | h->esym.asym.value = (h->root.u.def.value |
| 4369 | + h->root.u.def.section->output_section->vma |
| 4370 | + h->root.u.def.section->output_offset); |
| 4371 | break; |
| 4372 | case bfd_link_hash_common: |
| 4373 | if (h->esym.asym.sc != scCommon |
| 4374 | && h->esym.asym.sc != scSCommon) |
| 4375 | h->esym.asym.sc = scCommon; |
| 4376 | h->esym.asym.value = h->root.u.c.size; |
| 4377 | break; |
| 4378 | case bfd_link_hash_indirect: |
| 4379 | /* We ignore these symbols, since the indirected symbol is |
| 4380 | already in the hash table. */ |
| 4381 | return TRUE; |
| 4382 | } |
| 4383 | |
| 4384 | /* bfd_ecoff_debug_one_external uses iextMax to keep track of the |
| 4385 | symbol number. */ |
| 4386 | h->indx = ecoff_data (output_bfd)->debug_info.symbolic_header.iextMax; |
| 4387 | h->written = 1; |
| 4388 | |
| 4389 | return (bfd_ecoff_debug_one_external |
| 4390 | (output_bfd, &ecoff_data (output_bfd)->debug_info, |
| 4391 | &ecoff_backend (output_bfd)->debug_swap, h->root.root.string, |
| 4392 | &h->esym)); |
| 4393 | } |
| 4394 | |
| 4395 | /* ECOFF final link routine. This looks through all the input BFDs |
| 4396 | and gathers together all the debugging information, and then |
| 4397 | processes all the link order information. This may cause it to |
| 4398 | close and reopen some input BFDs; I'll see how bad this is. */ |
| 4399 | |
| 4400 | bfd_boolean |
| 4401 | _bfd_ecoff_bfd_final_link (bfd *abfd, struct bfd_link_info *info) |
| 4402 | { |
| 4403 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 4404 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; |
| 4405 | HDRR *symhdr; |
| 4406 | void * handle; |
| 4407 | bfd *input_bfd; |
| 4408 | asection *o; |
| 4409 | struct bfd_link_order *p; |
| 4410 | struct extsym_info einfo; |
| 4411 | |
| 4412 | /* We accumulate the debugging information counts in the symbolic |
| 4413 | header. */ |
| 4414 | symhdr = &debug->symbolic_header; |
| 4415 | symhdr->vstamp = 0; |
| 4416 | symhdr->ilineMax = 0; |
| 4417 | symhdr->cbLine = 0; |
| 4418 | symhdr->idnMax = 0; |
| 4419 | symhdr->ipdMax = 0; |
| 4420 | symhdr->isymMax = 0; |
| 4421 | symhdr->ioptMax = 0; |
| 4422 | symhdr->iauxMax = 0; |
| 4423 | symhdr->issMax = 0; |
| 4424 | symhdr->issExtMax = 0; |
| 4425 | symhdr->ifdMax = 0; |
| 4426 | symhdr->crfd = 0; |
| 4427 | symhdr->iextMax = 0; |
| 4428 | |
| 4429 | /* We accumulate the debugging information itself in the debug_info |
| 4430 | structure. */ |
| 4431 | debug->line = NULL; |
| 4432 | debug->external_dnr = NULL; |
| 4433 | debug->external_pdr = NULL; |
| 4434 | debug->external_sym = NULL; |
| 4435 | debug->external_opt = NULL; |
| 4436 | debug->external_aux = NULL; |
| 4437 | debug->ss = NULL; |
| 4438 | debug->ssext = debug->ssext_end = NULL; |
| 4439 | debug->external_fdr = NULL; |
| 4440 | debug->external_rfd = NULL; |
| 4441 | debug->external_ext = debug->external_ext_end = NULL; |
| 4442 | |
| 4443 | handle = bfd_ecoff_debug_init (abfd, debug, &backend->debug_swap, info); |
| 4444 | if (handle == NULL) |
| 4445 | return FALSE; |
| 4446 | |
| 4447 | /* Accumulate the debugging symbols from each input BFD. */ |
| 4448 | for (input_bfd = info->input_bfds; |
| 4449 | input_bfd != NULL; |
| 4450 | input_bfd = input_bfd->link_next) |
| 4451 | { |
| 4452 | bfd_boolean ret; |
| 4453 | |
| 4454 | if (bfd_get_flavour (input_bfd) == bfd_target_ecoff_flavour) |
| 4455 | { |
| 4456 | /* Arbitrarily set the symbolic header vstamp to the vstamp |
| 4457 | of the first object file in the link. */ |
| 4458 | if (symhdr->vstamp == 0) |
| 4459 | symhdr->vstamp |
| 4460 | = ecoff_data (input_bfd)->debug_info.symbolic_header.vstamp; |
| 4461 | ret = ecoff_final_link_debug_accumulate (abfd, input_bfd, info, |
| 4462 | handle); |
| 4463 | } |
| 4464 | else |
| 4465 | ret = bfd_ecoff_debug_accumulate_other (handle, abfd, |
| 4466 | debug, &backend->debug_swap, |
| 4467 | input_bfd, info); |
| 4468 | if (! ret) |
| 4469 | return FALSE; |
| 4470 | |
| 4471 | /* Combine the register masks. */ |
| 4472 | ecoff_data (abfd)->gprmask |= ecoff_data (input_bfd)->gprmask; |
| 4473 | ecoff_data (abfd)->fprmask |= ecoff_data (input_bfd)->fprmask; |
| 4474 | ecoff_data (abfd)->cprmask[0] |= ecoff_data (input_bfd)->cprmask[0]; |
| 4475 | ecoff_data (abfd)->cprmask[1] |= ecoff_data (input_bfd)->cprmask[1]; |
| 4476 | ecoff_data (abfd)->cprmask[2] |= ecoff_data (input_bfd)->cprmask[2]; |
| 4477 | ecoff_data (abfd)->cprmask[3] |= ecoff_data (input_bfd)->cprmask[3]; |
| 4478 | } |
| 4479 | |
| 4480 | /* Write out the external symbols. */ |
| 4481 | einfo.abfd = abfd; |
| 4482 | einfo.info = info; |
| 4483 | bfd_hash_traverse (&info->hash->table, ecoff_link_write_external, &einfo); |
| 4484 | |
| 4485 | if (info->relocatable) |
| 4486 | { |
| 4487 | /* We need to make a pass over the link_orders to count up the |
| 4488 | number of relocations we will need to output, so that we know |
| 4489 | how much space they will take up. */ |
| 4490 | for (o = abfd->sections; o != NULL; o = o->next) |
| 4491 | { |
| 4492 | o->reloc_count = 0; |
| 4493 | for (p = o->map_head.link_order; |
| 4494 | p != NULL; |
| 4495 | p = p->next) |
| 4496 | if (p->type == bfd_indirect_link_order) |
| 4497 | o->reloc_count += p->u.indirect.section->reloc_count; |
| 4498 | else if (p->type == bfd_section_reloc_link_order |
| 4499 | || p->type == bfd_symbol_reloc_link_order) |
| 4500 | ++o->reloc_count; |
| 4501 | } |
| 4502 | } |
| 4503 | |
| 4504 | /* Compute the reloc and symbol file positions. */ |
| 4505 | ecoff_compute_reloc_file_positions (abfd); |
| 4506 | |
| 4507 | /* Write out the debugging information. */ |
| 4508 | if (! bfd_ecoff_write_accumulated_debug (handle, abfd, debug, |
| 4509 | &backend->debug_swap, info, |
| 4510 | ecoff_data (abfd)->sym_filepos)) |
| 4511 | return FALSE; |
| 4512 | |
| 4513 | bfd_ecoff_debug_free (handle, abfd, debug, &backend->debug_swap, info); |
| 4514 | |
| 4515 | if (info->relocatable) |
| 4516 | { |
| 4517 | /* Now reset the reloc_count field of the sections in the output |
| 4518 | BFD to 0, so that we can use them to keep track of how many |
| 4519 | relocs we have output thus far. */ |
| 4520 | for (o = abfd->sections; o != NULL; o = o->next) |
| 4521 | o->reloc_count = 0; |
| 4522 | } |
| 4523 | |
| 4524 | /* Get a value for the GP register. */ |
| 4525 | if (ecoff_data (abfd)->gp == 0) |
| 4526 | { |
| 4527 | struct bfd_link_hash_entry *h; |
| 4528 | |
| 4529 | h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE); |
| 4530 | if (h != NULL |
| 4531 | && h->type == bfd_link_hash_defined) |
| 4532 | ecoff_data (abfd)->gp = (h->u.def.value |
| 4533 | + h->u.def.section->output_section->vma |
| 4534 | + h->u.def.section->output_offset); |
| 4535 | else if (info->relocatable) |
| 4536 | { |
| 4537 | bfd_vma lo; |
| 4538 | |
| 4539 | /* Make up a value. */ |
| 4540 | lo = (bfd_vma) -1; |
| 4541 | for (o = abfd->sections; o != NULL; o = o->next) |
| 4542 | { |
| 4543 | if (o->vma < lo |
| 4544 | && (streq (o->name, _SBSS) |
| 4545 | || streq (o->name, _SDATA) |
| 4546 | || streq (o->name, _LIT4) |
| 4547 | || streq (o->name, _LIT8) |
| 4548 | || streq (o->name, _LITA))) |
| 4549 | lo = o->vma; |
| 4550 | } |
| 4551 | ecoff_data (abfd)->gp = lo + 0x8000; |
| 4552 | } |
| 4553 | else |
| 4554 | { |
| 4555 | /* If the relocate_section function needs to do a reloc |
| 4556 | involving the GP value, it should make a reloc_dangerous |
| 4557 | callback to warn that GP is not defined. */ |
| 4558 | } |
| 4559 | } |
| 4560 | |
| 4561 | for (o = abfd->sections; o != NULL; o = o->next) |
| 4562 | { |
| 4563 | for (p = o->map_head.link_order; |
| 4564 | p != NULL; |
| 4565 | p = p->next) |
| 4566 | { |
| 4567 | if (p->type == bfd_indirect_link_order |
| 4568 | && (bfd_get_flavour (p->u.indirect.section->owner) |
| 4569 | == bfd_target_ecoff_flavour)) |
| 4570 | { |
| 4571 | if (! ecoff_indirect_link_order (abfd, info, o, p)) |
| 4572 | return FALSE; |
| 4573 | } |
| 4574 | else if (p->type == bfd_section_reloc_link_order |
| 4575 | || p->type == bfd_symbol_reloc_link_order) |
| 4576 | { |
| 4577 | if (! ecoff_reloc_link_order (abfd, info, o, p)) |
| 4578 | return FALSE; |
| 4579 | } |
| 4580 | else |
| 4581 | { |
| 4582 | if (! _bfd_default_link_order (abfd, info, o, p)) |
| 4583 | return FALSE; |
| 4584 | } |
| 4585 | } |
| 4586 | } |
| 4587 | |
| 4588 | bfd_get_symcount (abfd) = symhdr->iextMax + symhdr->isymMax; |
| 4589 | |
| 4590 | ecoff_data (abfd)->linker = TRUE; |
| 4591 | |
| 4592 | return TRUE; |
| 4593 | } |