| 1 | /* Generic ECOFF (Extended-COFF) routines. |
| 2 | Copyright 1990, 1991, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, |
| 3 | 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. |
| 4 | Original version by Per Bothner. |
| 5 | Full support added by Ian Lance Taylor, ian@cygnus.com. |
| 6 | |
| 7 | This file is part of BFD, the Binary File Descriptor library. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 2 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program; if not, write to the Free Software |
| 21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 22 | |
| 23 | #include "bfd.h" |
| 24 | #include "sysdep.h" |
| 25 | #include "bfdlink.h" |
| 26 | #include "libbfd.h" |
| 27 | #include "aout/ar.h" |
| 28 | #include "aout/ranlib.h" |
| 29 | #include "aout/stab_gnu.h" |
| 30 | |
| 31 | /* FIXME: We need the definitions of N_SET[ADTB], but aout64.h defines |
| 32 | some other stuff which we don't want and which conflicts with stuff |
| 33 | we do want. */ |
| 34 | #include "libaout.h" |
| 35 | #include "aout/aout64.h" |
| 36 | #undef N_ABS |
| 37 | #undef exec_hdr |
| 38 | #undef obj_sym_filepos |
| 39 | |
| 40 | #include "coff/internal.h" |
| 41 | #include "coff/sym.h" |
| 42 | #include "coff/symconst.h" |
| 43 | #include "coff/ecoff.h" |
| 44 | #include "libcoff.h" |
| 45 | #include "libecoff.h" |
| 46 | #include "libiberty.h" |
| 47 | |
| 48 | #define streq(a, b) (strcmp ((a), (b)) == 0) |
| 49 | #define strneq(a, b, n) (strncmp ((a), (b), (n)) == 0) |
| 50 | |
| 51 | \f |
| 52 | /* This stuff is somewhat copied from coffcode.h. */ |
| 53 | static asection bfd_debug_section = |
| 54 | { |
| 55 | /* name, id, index, next, prev, flags, user_set_vma, */ |
| 56 | "*DEBUG*", 0, 0, NULL, NULL, 0, 0, |
| 57 | /* linker_mark, linker_has_input, gc_mark, gc_mark_from_eh, */ |
| 58 | 0, 0, 1, 0, |
| 59 | /* segment_mark, sec_info_type, use_rela_p, has_tls_reloc, */ |
| 60 | 0, 0, 0, 0, |
| 61 | /* has_gp_reloc, need_finalize_relax, reloc_done, */ |
| 62 | 0, 0, 0, |
| 63 | /* vma, lma, size, rawsize, */ |
| 64 | 0, 0, 0, 0, |
| 65 | /* output_offset, output_section, alignment_power, */ |
| 66 | 0, NULL, 0, |
| 67 | /* relocation, orelocation, reloc_count, filepos, rel_filepos, */ |
| 68 | NULL, NULL, 0, 0, 0, |
| 69 | /* line_filepos, userdata, contents, lineno, lineno_count, */ |
| 70 | 0, NULL, NULL, NULL, 0, |
| 71 | /* entsize, kept_section, moving_line_filepos, */ |
| 72 | 0, NULL, 0, |
| 73 | /* target_index, used_by_bfd, constructor_chain, owner, */ |
| 74 | 0, NULL, NULL, NULL, |
| 75 | /* symbol, */ |
| 76 | NULL, |
| 77 | /* symbol_ptr_ptr, */ |
| 78 | NULL, |
| 79 | /* map_head, map_tail */ |
| 80 | { NULL }, { NULL } |
| 81 | }; |
| 82 | |
| 83 | /* Create an ECOFF object. */ |
| 84 | |
| 85 | bfd_boolean |
| 86 | _bfd_ecoff_mkobject (bfd *abfd) |
| 87 | { |
| 88 | bfd_size_type amt = sizeof (ecoff_data_type); |
| 89 | |
| 90 | abfd->tdata.ecoff_obj_data = bfd_zalloc (abfd, amt); |
| 91 | if (abfd->tdata.ecoff_obj_data == NULL) |
| 92 | return FALSE; |
| 93 | |
| 94 | return TRUE; |
| 95 | } |
| 96 | |
| 97 | /* This is a hook called by coff_real_object_p to create any backend |
| 98 | specific information. */ |
| 99 | |
| 100 | void * |
| 101 | _bfd_ecoff_mkobject_hook (bfd *abfd, void * filehdr, void * aouthdr) |
| 102 | { |
| 103 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
| 104 | struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr; |
| 105 | ecoff_data_type *ecoff; |
| 106 | |
| 107 | if (! _bfd_ecoff_mkobject (abfd)) |
| 108 | return NULL; |
| 109 | |
| 110 | ecoff = ecoff_data (abfd); |
| 111 | ecoff->gp_size = 8; |
| 112 | ecoff->sym_filepos = internal_f->f_symptr; |
| 113 | |
| 114 | if (internal_a != NULL) |
| 115 | { |
| 116 | int i; |
| 117 | |
| 118 | ecoff->text_start = internal_a->text_start; |
| 119 | ecoff->text_end = internal_a->text_start + internal_a->tsize; |
| 120 | ecoff->gp = internal_a->gp_value; |
| 121 | ecoff->gprmask = internal_a->gprmask; |
| 122 | for (i = 0; i < 4; i++) |
| 123 | ecoff->cprmask[i] = internal_a->cprmask[i]; |
| 124 | ecoff->fprmask = internal_a->fprmask; |
| 125 | if (internal_a->magic == ECOFF_AOUT_ZMAGIC) |
| 126 | abfd->flags |= D_PAGED; |
| 127 | else |
| 128 | abfd->flags &=~ D_PAGED; |
| 129 | } |
| 130 | |
| 131 | /* It turns out that no special action is required by the MIPS or |
| 132 | Alpha ECOFF backends. They have different information in the |
| 133 | a.out header, but we just copy it all (e.g., gprmask, cprmask and |
| 134 | fprmask) and let the swapping routines ensure that only relevant |
| 135 | information is written out. */ |
| 136 | |
| 137 | return (void *) ecoff; |
| 138 | } |
| 139 | |
| 140 | /* Initialize a new section. */ |
| 141 | |
| 142 | bfd_boolean |
| 143 | _bfd_ecoff_new_section_hook (bfd *abfd, asection *section) |
| 144 | { |
| 145 | unsigned int i; |
| 146 | static struct |
| 147 | { |
| 148 | const char * name; |
| 149 | flagword flags; |
| 150 | } |
| 151 | section_flags [] = |
| 152 | { |
| 153 | { _TEXT, SEC_ALLOC | SEC_CODE | SEC_LOAD }, |
| 154 | { _INIT, SEC_ALLOC | SEC_CODE | SEC_LOAD }, |
| 155 | { _FINI, SEC_ALLOC | SEC_CODE | SEC_LOAD }, |
| 156 | { _DATA, SEC_ALLOC | SEC_DATA | SEC_LOAD }, |
| 157 | { _SDATA, SEC_ALLOC | SEC_DATA | SEC_LOAD }, |
| 158 | { _RDATA, SEC_ALLOC | SEC_DATA | SEC_LOAD | SEC_READONLY}, |
| 159 | { _LIT8, SEC_ALLOC | SEC_DATA | SEC_LOAD | SEC_READONLY}, |
| 160 | { _LIT4, SEC_ALLOC | SEC_DATA | SEC_LOAD | SEC_READONLY}, |
| 161 | { _RCONST, SEC_ALLOC | SEC_DATA | SEC_LOAD | SEC_READONLY}, |
| 162 | { _PDATA, SEC_ALLOC | SEC_DATA | SEC_LOAD | SEC_READONLY}, |
| 163 | { _BSS, SEC_ALLOC}, |
| 164 | { _SBSS, SEC_ALLOC}, |
| 165 | /* An Irix 4 shared libary. */ |
| 166 | { _LIB, SEC_COFF_SHARED_LIBRARY} |
| 167 | }; |
| 168 | |
| 169 | section->alignment_power = 4; |
| 170 | |
| 171 | for (i = 0; i < ARRAY_SIZE (section_flags); i++) |
| 172 | if (streq (section->name, section_flags[i].name)) |
| 173 | { |
| 174 | section->flags |= section_flags[i].flags; |
| 175 | break; |
| 176 | } |
| 177 | |
| 178 | |
| 179 | /* Probably any other section name is SEC_NEVER_LOAD, but I'm |
| 180 | uncertain about .init on some systems and I don't know how shared |
| 181 | libraries work. */ |
| 182 | |
| 183 | return _bfd_generic_new_section_hook (abfd, section); |
| 184 | } |
| 185 | |
| 186 | /* Determine the machine architecture and type. This is called from |
| 187 | the generic COFF routines. It is the inverse of ecoff_get_magic, |
| 188 | below. This could be an ECOFF backend routine, with one version |
| 189 | for each target, but there aren't all that many ECOFF targets. */ |
| 190 | |
| 191 | bfd_boolean |
| 192 | _bfd_ecoff_set_arch_mach_hook (bfd *abfd, void * filehdr) |
| 193 | { |
| 194 | struct internal_filehdr *internal_f = filehdr; |
| 195 | enum bfd_architecture arch; |
| 196 | unsigned long mach; |
| 197 | |
| 198 | switch (internal_f->f_magic) |
| 199 | { |
| 200 | case MIPS_MAGIC_1: |
| 201 | case MIPS_MAGIC_LITTLE: |
| 202 | case MIPS_MAGIC_BIG: |
| 203 | arch = bfd_arch_mips; |
| 204 | mach = bfd_mach_mips3000; |
| 205 | break; |
| 206 | |
| 207 | case MIPS_MAGIC_LITTLE2: |
| 208 | case MIPS_MAGIC_BIG2: |
| 209 | /* MIPS ISA level 2: the r6000. */ |
| 210 | arch = bfd_arch_mips; |
| 211 | mach = bfd_mach_mips6000; |
| 212 | break; |
| 213 | |
| 214 | case MIPS_MAGIC_LITTLE3: |
| 215 | case MIPS_MAGIC_BIG3: |
| 216 | /* MIPS ISA level 3: the r4000. */ |
| 217 | arch = bfd_arch_mips; |
| 218 | mach = bfd_mach_mips4000; |
| 219 | break; |
| 220 | |
| 221 | case ALPHA_MAGIC: |
| 222 | arch = bfd_arch_alpha; |
| 223 | mach = 0; |
| 224 | break; |
| 225 | |
| 226 | default: |
| 227 | arch = bfd_arch_obscure; |
| 228 | mach = 0; |
| 229 | break; |
| 230 | } |
| 231 | |
| 232 | return bfd_default_set_arch_mach (abfd, arch, mach); |
| 233 | } |
| 234 | |
| 235 | /* Get the magic number to use based on the architecture and machine. |
| 236 | This is the inverse of _bfd_ecoff_set_arch_mach_hook, above. */ |
| 237 | |
| 238 | static int |
| 239 | ecoff_get_magic (bfd *abfd) |
| 240 | { |
| 241 | int big, little; |
| 242 | |
| 243 | switch (bfd_get_arch (abfd)) |
| 244 | { |
| 245 | case bfd_arch_mips: |
| 246 | switch (bfd_get_mach (abfd)) |
| 247 | { |
| 248 | default: |
| 249 | case 0: |
| 250 | case bfd_mach_mips3000: |
| 251 | big = MIPS_MAGIC_BIG; |
| 252 | little = MIPS_MAGIC_LITTLE; |
| 253 | break; |
| 254 | |
| 255 | case bfd_mach_mips6000: |
| 256 | big = MIPS_MAGIC_BIG2; |
| 257 | little = MIPS_MAGIC_LITTLE2; |
| 258 | break; |
| 259 | |
| 260 | case bfd_mach_mips4000: |
| 261 | big = MIPS_MAGIC_BIG3; |
| 262 | little = MIPS_MAGIC_LITTLE3; |
| 263 | break; |
| 264 | } |
| 265 | |
| 266 | return bfd_big_endian (abfd) ? big : little; |
| 267 | |
| 268 | case bfd_arch_alpha: |
| 269 | return ALPHA_MAGIC; |
| 270 | |
| 271 | default: |
| 272 | abort (); |
| 273 | return 0; |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | /* Get the section s_flags to use for a section. */ |
| 278 | |
| 279 | static long |
| 280 | ecoff_sec_to_styp_flags (const char *name, flagword flags) |
| 281 | { |
| 282 | unsigned int i; |
| 283 | static struct |
| 284 | { |
| 285 | const char * name; |
| 286 | long flags; |
| 287 | } |
| 288 | styp_flags [] = |
| 289 | { |
| 290 | { _TEXT, STYP_TEXT }, |
| 291 | { _DATA, STYP_DATA }, |
| 292 | { _SDATA, STYP_SDATA }, |
| 293 | { _RDATA, STYP_RDATA }, |
| 294 | { _LITA, STYP_LITA }, |
| 295 | { _LIT8, STYP_LIT8 }, |
| 296 | { _LIT4, STYP_LIT4 }, |
| 297 | { _BSS, STYP_BSS }, |
| 298 | { _SBSS, STYP_SBSS }, |
| 299 | { _INIT, STYP_ECOFF_INIT }, |
| 300 | { _FINI, STYP_ECOFF_FINI }, |
| 301 | { _PDATA, STYP_PDATA }, |
| 302 | { _XDATA, STYP_XDATA }, |
| 303 | { _LIB, STYP_ECOFF_LIB }, |
| 304 | { _GOT, STYP_GOT }, |
| 305 | { _HASH, STYP_HASH }, |
| 306 | { _DYNAMIC, STYP_DYNAMIC }, |
| 307 | { _LIBLIST, STYP_LIBLIST }, |
| 308 | { _RELDYN, STYP_RELDYN }, |
| 309 | { _CONFLIC, STYP_CONFLIC }, |
| 310 | { _DYNSTR, STYP_DYNSTR }, |
| 311 | { _DYNSYM, STYP_DYNSYM }, |
| 312 | { _RCONST, STYP_RCONST } |
| 313 | }; |
| 314 | long styp = 0; |
| 315 | |
| 316 | for (i = 0; i < ARRAY_SIZE (styp_flags); i++) |
| 317 | if (streq (name, styp_flags[i].name)) |
| 318 | { |
| 319 | styp = styp_flags[i].flags; |
| 320 | break; |
| 321 | } |
| 322 | |
| 323 | if (styp == 0) |
| 324 | { |
| 325 | if (streq (name, _COMMENT)) |
| 326 | { |
| 327 | styp = STYP_COMMENT; |
| 328 | flags &=~ SEC_NEVER_LOAD; |
| 329 | } |
| 330 | else if (flags & SEC_CODE) |
| 331 | styp = STYP_TEXT; |
| 332 | else if (flags & SEC_DATA) |
| 333 | styp = STYP_DATA; |
| 334 | else if (flags & SEC_READONLY) |
| 335 | styp = STYP_RDATA; |
| 336 | else if (flags & SEC_LOAD) |
| 337 | styp = STYP_REG; |
| 338 | else |
| 339 | styp = STYP_BSS; |
| 340 | } |
| 341 | |
| 342 | if (flags & SEC_NEVER_LOAD) |
| 343 | styp |= STYP_NOLOAD; |
| 344 | |
| 345 | return styp; |
| 346 | } |
| 347 | |
| 348 | /* Get the BFD flags to use for a section. */ |
| 349 | |
| 350 | bfd_boolean |
| 351 | _bfd_ecoff_styp_to_sec_flags (bfd *abfd ATTRIBUTE_UNUSED, |
| 352 | void * hdr, |
| 353 | const char *name ATTRIBUTE_UNUSED, |
| 354 | asection *section ATTRIBUTE_UNUSED, |
| 355 | flagword * flags_ptr) |
| 356 | { |
| 357 | struct internal_scnhdr *internal_s = hdr; |
| 358 | long styp_flags = internal_s->s_flags; |
| 359 | flagword sec_flags = 0; |
| 360 | |
| 361 | if (styp_flags & STYP_NOLOAD) |
| 362 | sec_flags |= SEC_NEVER_LOAD; |
| 363 | |
| 364 | /* For 386 COFF, at least, an unloadable text or data section is |
| 365 | actually a shared library section. */ |
| 366 | if ((styp_flags & STYP_TEXT) |
| 367 | || (styp_flags & STYP_ECOFF_INIT) |
| 368 | || (styp_flags & STYP_ECOFF_FINI) |
| 369 | || (styp_flags & STYP_DYNAMIC) |
| 370 | || (styp_flags & STYP_LIBLIST) |
| 371 | || (styp_flags & STYP_RELDYN) |
| 372 | || styp_flags == STYP_CONFLIC |
| 373 | || (styp_flags & STYP_DYNSTR) |
| 374 | || (styp_flags & STYP_DYNSYM) |
| 375 | || (styp_flags & STYP_HASH)) |
| 376 | { |
| 377 | if (sec_flags & SEC_NEVER_LOAD) |
| 378 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; |
| 379 | else |
| 380 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; |
| 381 | } |
| 382 | else if ((styp_flags & STYP_DATA) |
| 383 | || (styp_flags & STYP_RDATA) |
| 384 | || (styp_flags & STYP_SDATA) |
| 385 | || styp_flags == STYP_PDATA |
| 386 | || styp_flags == STYP_XDATA |
| 387 | || (styp_flags & STYP_GOT) |
| 388 | || styp_flags == STYP_RCONST) |
| 389 | { |
| 390 | if (sec_flags & SEC_NEVER_LOAD) |
| 391 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; |
| 392 | else |
| 393 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; |
| 394 | if ((styp_flags & STYP_RDATA) |
| 395 | || styp_flags == STYP_PDATA |
| 396 | || styp_flags == STYP_RCONST) |
| 397 | sec_flags |= SEC_READONLY; |
| 398 | } |
| 399 | else if ((styp_flags & STYP_BSS) |
| 400 | || (styp_flags & STYP_SBSS)) |
| 401 | sec_flags |= SEC_ALLOC; |
| 402 | else if ((styp_flags & STYP_INFO) || styp_flags == STYP_COMMENT) |
| 403 | sec_flags |= SEC_NEVER_LOAD; |
| 404 | else if ((styp_flags & STYP_LITA) |
| 405 | || (styp_flags & STYP_LIT8) |
| 406 | || (styp_flags & STYP_LIT4)) |
| 407 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; |
| 408 | else if (styp_flags & STYP_ECOFF_LIB) |
| 409 | sec_flags |= SEC_COFF_SHARED_LIBRARY; |
| 410 | else |
| 411 | sec_flags |= SEC_ALLOC | SEC_LOAD; |
| 412 | |
| 413 | * flags_ptr = sec_flags; |
| 414 | return TRUE; |
| 415 | } |
| 416 | \f |
| 417 | /* Read in the symbolic header for an ECOFF object file. */ |
| 418 | |
| 419 | static bfd_boolean |
| 420 | ecoff_slurp_symbolic_header (bfd *abfd) |
| 421 | { |
| 422 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 423 | bfd_size_type external_hdr_size; |
| 424 | void * raw = NULL; |
| 425 | HDRR *internal_symhdr; |
| 426 | |
| 427 | /* See if we've already read it in. */ |
| 428 | if (ecoff_data (abfd)->debug_info.symbolic_header.magic == |
| 429 | backend->debug_swap.sym_magic) |
| 430 | return TRUE; |
| 431 | |
| 432 | /* See whether there is a symbolic header. */ |
| 433 | if (ecoff_data (abfd)->sym_filepos == 0) |
| 434 | { |
| 435 | bfd_get_symcount (abfd) = 0; |
| 436 | return TRUE; |
| 437 | } |
| 438 | |
| 439 | /* At this point bfd_get_symcount (abfd) holds the number of symbols |
| 440 | as read from the file header, but on ECOFF this is always the |
| 441 | size of the symbolic information header. It would be cleaner to |
| 442 | handle this when we first read the file in coffgen.c. */ |
| 443 | external_hdr_size = backend->debug_swap.external_hdr_size; |
| 444 | if (bfd_get_symcount (abfd) != external_hdr_size) |
| 445 | { |
| 446 | bfd_set_error (bfd_error_bad_value); |
| 447 | return FALSE; |
| 448 | } |
| 449 | |
| 450 | /* Read the symbolic information header. */ |
| 451 | raw = bfd_malloc (external_hdr_size); |
| 452 | if (raw == NULL) |
| 453 | goto error_return; |
| 454 | |
| 455 | if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) != 0 |
| 456 | || bfd_bread (raw, external_hdr_size, abfd) != external_hdr_size) |
| 457 | goto error_return; |
| 458 | internal_symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; |
| 459 | (*backend->debug_swap.swap_hdr_in) (abfd, raw, internal_symhdr); |
| 460 | |
| 461 | if (internal_symhdr->magic != backend->debug_swap.sym_magic) |
| 462 | { |
| 463 | bfd_set_error (bfd_error_bad_value); |
| 464 | goto error_return; |
| 465 | } |
| 466 | |
| 467 | /* Now we can get the correct number of symbols. */ |
| 468 | bfd_get_symcount (abfd) = (internal_symhdr->isymMax |
| 469 | + internal_symhdr->iextMax); |
| 470 | |
| 471 | if (raw != NULL) |
| 472 | free (raw); |
| 473 | return TRUE; |
| 474 | error_return: |
| 475 | if (raw != NULL) |
| 476 | free (raw); |
| 477 | return FALSE; |
| 478 | } |
| 479 | |
| 480 | /* Read in and swap the important symbolic information for an ECOFF |
| 481 | object file. This is called by gdb via the read_debug_info entry |
| 482 | point in the backend structure. */ |
| 483 | |
| 484 | bfd_boolean |
| 485 | _bfd_ecoff_slurp_symbolic_info (bfd *abfd, |
| 486 | asection *ignore ATTRIBUTE_UNUSED, |
| 487 | struct ecoff_debug_info *debug) |
| 488 | { |
| 489 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 490 | HDRR *internal_symhdr; |
| 491 | bfd_size_type raw_base; |
| 492 | bfd_size_type raw_size; |
| 493 | void * raw; |
| 494 | bfd_size_type external_fdr_size; |
| 495 | char *fraw_src; |
| 496 | char *fraw_end; |
| 497 | struct fdr *fdr_ptr; |
| 498 | bfd_size_type raw_end; |
| 499 | bfd_size_type cb_end; |
| 500 | bfd_size_type amt; |
| 501 | file_ptr pos; |
| 502 | |
| 503 | BFD_ASSERT (debug == &ecoff_data (abfd)->debug_info); |
| 504 | |
| 505 | /* Check whether we've already gotten it, and whether there's any to |
| 506 | get. */ |
| 507 | if (ecoff_data (abfd)->raw_syments != NULL) |
| 508 | return TRUE; |
| 509 | if (ecoff_data (abfd)->sym_filepos == 0) |
| 510 | { |
| 511 | bfd_get_symcount (abfd) = 0; |
| 512 | return TRUE; |
| 513 | } |
| 514 | |
| 515 | if (! ecoff_slurp_symbolic_header (abfd)) |
| 516 | return FALSE; |
| 517 | |
| 518 | internal_symhdr = &debug->symbolic_header; |
| 519 | |
| 520 | /* Read all the symbolic information at once. */ |
| 521 | raw_base = (ecoff_data (abfd)->sym_filepos |
| 522 | + backend->debug_swap.external_hdr_size); |
| 523 | |
| 524 | /* Alpha ecoff makes the determination of raw_size difficult. It has |
| 525 | an undocumented debug data section between the symhdr and the first |
| 526 | documented section. And the ordering of the sections varies between |
| 527 | statically and dynamically linked executables. |
| 528 | If bfd supports SEEK_END someday, this code could be simplified. */ |
| 529 | raw_end = 0; |
| 530 | |
| 531 | #define UPDATE_RAW_END(start, count, size) \ |
| 532 | cb_end = internal_symhdr->start + internal_symhdr->count * (size); \ |
| 533 | if (cb_end > raw_end) \ |
| 534 | raw_end = cb_end |
| 535 | |
| 536 | UPDATE_RAW_END (cbLineOffset, cbLine, sizeof (unsigned char)); |
| 537 | UPDATE_RAW_END (cbDnOffset, idnMax, backend->debug_swap.external_dnr_size); |
| 538 | UPDATE_RAW_END (cbPdOffset, ipdMax, backend->debug_swap.external_pdr_size); |
| 539 | UPDATE_RAW_END (cbSymOffset, isymMax, backend->debug_swap.external_sym_size); |
| 540 | /* eraxxon@alumni.rice.edu: ioptMax refers to the size of the |
| 541 | optimization symtab, not the number of entries. */ |
| 542 | UPDATE_RAW_END (cbOptOffset, ioptMax, sizeof (char)); |
| 543 | UPDATE_RAW_END (cbAuxOffset, iauxMax, sizeof (union aux_ext)); |
| 544 | UPDATE_RAW_END (cbSsOffset, issMax, sizeof (char)); |
| 545 | UPDATE_RAW_END (cbSsExtOffset, issExtMax, sizeof (char)); |
| 546 | UPDATE_RAW_END (cbFdOffset, ifdMax, backend->debug_swap.external_fdr_size); |
| 547 | UPDATE_RAW_END (cbRfdOffset, crfd, backend->debug_swap.external_rfd_size); |
| 548 | UPDATE_RAW_END (cbExtOffset, iextMax, backend->debug_swap.external_ext_size); |
| 549 | |
| 550 | #undef UPDATE_RAW_END |
| 551 | |
| 552 | raw_size = raw_end - raw_base; |
| 553 | if (raw_size == 0) |
| 554 | { |
| 555 | ecoff_data (abfd)->sym_filepos = 0; |
| 556 | return TRUE; |
| 557 | } |
| 558 | raw = bfd_alloc (abfd, raw_size); |
| 559 | if (raw == NULL) |
| 560 | return FALSE; |
| 561 | |
| 562 | pos = ecoff_data (abfd)->sym_filepos; |
| 563 | pos += backend->debug_swap.external_hdr_size; |
| 564 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 |
| 565 | || bfd_bread (raw, raw_size, abfd) != raw_size) |
| 566 | { |
| 567 | bfd_release (abfd, raw); |
| 568 | return FALSE; |
| 569 | } |
| 570 | |
| 571 | ecoff_data (abfd)->raw_syments = raw; |
| 572 | |
| 573 | /* Get pointers for the numeric offsets in the HDRR structure. */ |
| 574 | #define FIX(off1, off2, type) \ |
| 575 | if (internal_symhdr->off1 == 0) \ |
| 576 | debug->off2 = NULL; \ |
| 577 | else \ |
| 578 | debug->off2 = (type) ((char *) raw \ |
| 579 | + (internal_symhdr->off1 \ |
| 580 | - raw_base)) |
| 581 | |
| 582 | FIX (cbLineOffset, line, unsigned char *); |
| 583 | FIX (cbDnOffset, external_dnr, void *); |
| 584 | FIX (cbPdOffset, external_pdr, void *); |
| 585 | FIX (cbSymOffset, external_sym, void *); |
| 586 | FIX (cbOptOffset, external_opt, void *); |
| 587 | FIX (cbAuxOffset, external_aux, union aux_ext *); |
| 588 | FIX (cbSsOffset, ss, char *); |
| 589 | FIX (cbSsExtOffset, ssext, char *); |
| 590 | FIX (cbFdOffset, external_fdr, void *); |
| 591 | FIX (cbRfdOffset, external_rfd, void *); |
| 592 | FIX (cbExtOffset, external_ext, void *); |
| 593 | #undef FIX |
| 594 | |
| 595 | /* I don't want to always swap all the data, because it will just |
| 596 | waste time and most programs will never look at it. The only |
| 597 | time the linker needs most of the debugging information swapped |
| 598 | is when linking big-endian and little-endian MIPS object files |
| 599 | together, which is not a common occurrence. |
| 600 | |
| 601 | We need to look at the fdr to deal with a lot of information in |
| 602 | the symbols, so we swap them here. */ |
| 603 | amt = internal_symhdr->ifdMax; |
| 604 | amt *= sizeof (struct fdr); |
| 605 | debug->fdr = bfd_alloc (abfd, amt); |
| 606 | if (debug->fdr == NULL) |
| 607 | return FALSE; |
| 608 | external_fdr_size = backend->debug_swap.external_fdr_size; |
| 609 | fdr_ptr = debug->fdr; |
| 610 | fraw_src = (char *) debug->external_fdr; |
| 611 | fraw_end = fraw_src + internal_symhdr->ifdMax * external_fdr_size; |
| 612 | for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++) |
| 613 | (*backend->debug_swap.swap_fdr_in) (abfd, (void *) fraw_src, fdr_ptr); |
| 614 | |
| 615 | return TRUE; |
| 616 | } |
| 617 | \f |
| 618 | /* ECOFF symbol table routines. The ECOFF symbol table is described |
| 619 | in gcc/mips-tfile.c. */ |
| 620 | |
| 621 | /* ECOFF uses two common sections. One is the usual one, and the |
| 622 | other is for small objects. All the small objects are kept |
| 623 | together, and then referenced via the gp pointer, which yields |
| 624 | faster assembler code. This is what we use for the small common |
| 625 | section. */ |
| 626 | static asection ecoff_scom_section; |
| 627 | static asymbol ecoff_scom_symbol; |
| 628 | static asymbol *ecoff_scom_symbol_ptr; |
| 629 | |
| 630 | /* Create an empty symbol. */ |
| 631 | |
| 632 | asymbol * |
| 633 | _bfd_ecoff_make_empty_symbol (bfd *abfd) |
| 634 | { |
| 635 | ecoff_symbol_type *new; |
| 636 | bfd_size_type amt = sizeof (ecoff_symbol_type); |
| 637 | |
| 638 | new = bfd_zalloc (abfd, amt); |
| 639 | if (new == NULL) |
| 640 | return NULL; |
| 641 | new->symbol.section = NULL; |
| 642 | new->fdr = NULL; |
| 643 | new->local = FALSE; |
| 644 | new->native = NULL; |
| 645 | new->symbol.the_bfd = abfd; |
| 646 | return &new->symbol; |
| 647 | } |
| 648 | |
| 649 | /* Set the BFD flags and section for an ECOFF symbol. */ |
| 650 | |
| 651 | static bfd_boolean |
| 652 | ecoff_set_symbol_info (bfd *abfd, |
| 653 | SYMR *ecoff_sym, |
| 654 | asymbol *asym, |
| 655 | int ext, |
| 656 | int weak) |
| 657 | { |
| 658 | asym->the_bfd = abfd; |
| 659 | asym->value = ecoff_sym->value; |
| 660 | asym->section = &bfd_debug_section; |
| 661 | asym->udata.i = 0; |
| 662 | |
| 663 | /* Most symbol types are just for debugging. */ |
| 664 | switch (ecoff_sym->st) |
| 665 | { |
| 666 | case stGlobal: |
| 667 | case stStatic: |
| 668 | case stLabel: |
| 669 | case stProc: |
| 670 | case stStaticProc: |
| 671 | break; |
| 672 | case stNil: |
| 673 | if (ECOFF_IS_STAB (ecoff_sym)) |
| 674 | { |
| 675 | asym->flags = BSF_DEBUGGING; |
| 676 | return TRUE; |
| 677 | } |
| 678 | break; |
| 679 | default: |
| 680 | asym->flags = BSF_DEBUGGING; |
| 681 | return TRUE; |
| 682 | } |
| 683 | |
| 684 | if (weak) |
| 685 | asym->flags = BSF_EXPORT | BSF_WEAK; |
| 686 | else if (ext) |
| 687 | asym->flags = BSF_EXPORT | BSF_GLOBAL; |
| 688 | else |
| 689 | { |
| 690 | asym->flags = BSF_LOCAL; |
| 691 | /* Normally, a local stProc symbol will have a corresponding |
| 692 | external symbol. We mark the local symbol as a debugging |
| 693 | symbol, in order to prevent nm from printing both out. |
| 694 | Similarly, we mark stLabel and stabs symbols as debugging |
| 695 | symbols. In both cases, we do want to set the value |
| 696 | correctly based on the symbol class. */ |
| 697 | if (ecoff_sym->st == stProc |
| 698 | || ecoff_sym->st == stLabel |
| 699 | || ECOFF_IS_STAB (ecoff_sym)) |
| 700 | asym->flags |= BSF_DEBUGGING; |
| 701 | } |
| 702 | |
| 703 | if (ecoff_sym->st == stProc || ecoff_sym->st == stStaticProc) |
| 704 | asym->flags |= BSF_FUNCTION; |
| 705 | |
| 706 | switch (ecoff_sym->sc) |
| 707 | { |
| 708 | case scNil: |
| 709 | /* Used for compiler generated labels. Leave them in the |
| 710 | debugging section, and mark them as local. If BSF_DEBUGGING |
| 711 | is set, then nm does not display them for some reason. If no |
| 712 | flags are set then the linker whines about them. */ |
| 713 | asym->flags = BSF_LOCAL; |
| 714 | break; |
| 715 | case scText: |
| 716 | asym->section = bfd_make_section_old_way (abfd, _TEXT); |
| 717 | asym->value -= asym->section->vma; |
| 718 | break; |
| 719 | case scData: |
| 720 | asym->section = bfd_make_section_old_way (abfd, _DATA); |
| 721 | asym->value -= asym->section->vma; |
| 722 | break; |
| 723 | case scBss: |
| 724 | asym->section = bfd_make_section_old_way (abfd, _BSS); |
| 725 | asym->value -= asym->section->vma; |
| 726 | break; |
| 727 | case scRegister: |
| 728 | asym->flags = BSF_DEBUGGING; |
| 729 | break; |
| 730 | case scAbs: |
| 731 | asym->section = bfd_abs_section_ptr; |
| 732 | break; |
| 733 | case scUndefined: |
| 734 | asym->section = bfd_und_section_ptr; |
| 735 | asym->flags = 0; |
| 736 | asym->value = 0; |
| 737 | break; |
| 738 | case scCdbLocal: |
| 739 | case scBits: |
| 740 | case scCdbSystem: |
| 741 | case scRegImage: |
| 742 | case scInfo: |
| 743 | case scUserStruct: |
| 744 | asym->flags = BSF_DEBUGGING; |
| 745 | break; |
| 746 | case scSData: |
| 747 | asym->section = bfd_make_section_old_way (abfd, ".sdata"); |
| 748 | asym->value -= asym->section->vma; |
| 749 | break; |
| 750 | case scSBss: |
| 751 | asym->section = bfd_make_section_old_way (abfd, ".sbss"); |
| 752 | asym->value -= asym->section->vma; |
| 753 | break; |
| 754 | case scRData: |
| 755 | asym->section = bfd_make_section_old_way (abfd, ".rdata"); |
| 756 | asym->value -= asym->section->vma; |
| 757 | break; |
| 758 | case scVar: |
| 759 | asym->flags = BSF_DEBUGGING; |
| 760 | break; |
| 761 | case scCommon: |
| 762 | if (asym->value > ecoff_data (abfd)->gp_size) |
| 763 | { |
| 764 | asym->section = bfd_com_section_ptr; |
| 765 | asym->flags = 0; |
| 766 | break; |
| 767 | } |
| 768 | /* Fall through. */ |
| 769 | case scSCommon: |
| 770 | if (ecoff_scom_section.name == NULL) |
| 771 | { |
| 772 | /* Initialize the small common section. */ |
| 773 | ecoff_scom_section.name = SCOMMON; |
| 774 | ecoff_scom_section.flags = SEC_IS_COMMON; |
| 775 | ecoff_scom_section.output_section = &ecoff_scom_section; |
| 776 | ecoff_scom_section.symbol = &ecoff_scom_symbol; |
| 777 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; |
| 778 | ecoff_scom_symbol.name = SCOMMON; |
| 779 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; |
| 780 | ecoff_scom_symbol.section = &ecoff_scom_section; |
| 781 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; |
| 782 | } |
| 783 | asym->section = &ecoff_scom_section; |
| 784 | asym->flags = 0; |
| 785 | break; |
| 786 | case scVarRegister: |
| 787 | case scVariant: |
| 788 | asym->flags = BSF_DEBUGGING; |
| 789 | break; |
| 790 | case scSUndefined: |
| 791 | asym->section = bfd_und_section_ptr; |
| 792 | asym->flags = 0; |
| 793 | asym->value = 0; |
| 794 | break; |
| 795 | case scInit: |
| 796 | asym->section = bfd_make_section_old_way (abfd, ".init"); |
| 797 | asym->value -= asym->section->vma; |
| 798 | break; |
| 799 | case scBasedVar: |
| 800 | case scXData: |
| 801 | case scPData: |
| 802 | asym->flags = BSF_DEBUGGING; |
| 803 | break; |
| 804 | case scFini: |
| 805 | asym->section = bfd_make_section_old_way (abfd, ".fini"); |
| 806 | asym->value -= asym->section->vma; |
| 807 | break; |
| 808 | case scRConst: |
| 809 | asym->section = bfd_make_section_old_way (abfd, ".rconst"); |
| 810 | asym->value -= asym->section->vma; |
| 811 | break; |
| 812 | default: |
| 813 | break; |
| 814 | } |
| 815 | |
| 816 | /* Look for special constructors symbols and make relocation entries |
| 817 | in a special construction section. These are produced by the |
| 818 | -fgnu-linker argument to g++. */ |
| 819 | if (ECOFF_IS_STAB (ecoff_sym)) |
| 820 | { |
| 821 | switch (ECOFF_UNMARK_STAB (ecoff_sym->index)) |
| 822 | { |
| 823 | default: |
| 824 | break; |
| 825 | |
| 826 | case N_SETA: |
| 827 | case N_SETT: |
| 828 | case N_SETD: |
| 829 | case N_SETB: |
| 830 | /* Mark the symbol as a constructor. */ |
| 831 | asym->flags |= BSF_CONSTRUCTOR; |
| 832 | break; |
| 833 | } |
| 834 | } |
| 835 | return TRUE; |
| 836 | } |
| 837 | |
| 838 | /* Read an ECOFF symbol table. */ |
| 839 | |
| 840 | bfd_boolean |
| 841 | _bfd_ecoff_slurp_symbol_table (bfd *abfd) |
| 842 | { |
| 843 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 844 | const bfd_size_type external_ext_size |
| 845 | = backend->debug_swap.external_ext_size; |
| 846 | const bfd_size_type external_sym_size |
| 847 | = backend->debug_swap.external_sym_size; |
| 848 | void (* const swap_ext_in) (bfd *, void *, EXTR *) |
| 849 | = backend->debug_swap.swap_ext_in; |
| 850 | void (* const swap_sym_in) (bfd *, void *, SYMR *) |
| 851 | = backend->debug_swap.swap_sym_in; |
| 852 | bfd_size_type internal_size; |
| 853 | ecoff_symbol_type *internal; |
| 854 | ecoff_symbol_type *internal_ptr; |
| 855 | char *eraw_src; |
| 856 | char *eraw_end; |
| 857 | FDR *fdr_ptr; |
| 858 | FDR *fdr_end; |
| 859 | |
| 860 | /* If we've already read in the symbol table, do nothing. */ |
| 861 | if (ecoff_data (abfd)->canonical_symbols != NULL) |
| 862 | return TRUE; |
| 863 | |
| 864 | /* Get the symbolic information. */ |
| 865 | if (! _bfd_ecoff_slurp_symbolic_info (abfd, NULL, |
| 866 | &ecoff_data (abfd)->debug_info)) |
| 867 | return FALSE; |
| 868 | if (bfd_get_symcount (abfd) == 0) |
| 869 | return TRUE; |
| 870 | |
| 871 | internal_size = bfd_get_symcount (abfd); |
| 872 | internal_size *= sizeof (ecoff_symbol_type); |
| 873 | internal = bfd_alloc (abfd, internal_size); |
| 874 | if (internal == NULL) |
| 875 | return FALSE; |
| 876 | |
| 877 | internal_ptr = internal; |
| 878 | eraw_src = (char *) ecoff_data (abfd)->debug_info.external_ext; |
| 879 | eraw_end = (eraw_src |
| 880 | + (ecoff_data (abfd)->debug_info.symbolic_header.iextMax |
| 881 | * external_ext_size)); |
| 882 | for (; eraw_src < eraw_end; eraw_src += external_ext_size, internal_ptr++) |
| 883 | { |
| 884 | EXTR internal_esym; |
| 885 | |
| 886 | (*swap_ext_in) (abfd, (void *) eraw_src, &internal_esym); |
| 887 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ssext |
| 888 | + internal_esym.asym.iss); |
| 889 | if (!ecoff_set_symbol_info (abfd, &internal_esym.asym, |
| 890 | &internal_ptr->symbol, 1, |
| 891 | internal_esym.weakext)) |
| 892 | return FALSE; |
| 893 | /* The alpha uses a negative ifd field for section symbols. */ |
| 894 | if (internal_esym.ifd >= 0) |
| 895 | internal_ptr->fdr = (ecoff_data (abfd)->debug_info.fdr |
| 896 | + internal_esym.ifd); |
| 897 | else |
| 898 | internal_ptr->fdr = NULL; |
| 899 | internal_ptr->local = FALSE; |
| 900 | internal_ptr->native = (void *) eraw_src; |
| 901 | } |
| 902 | |
| 903 | /* The local symbols must be accessed via the fdr's, because the |
| 904 | string and aux indices are relative to the fdr information. */ |
| 905 | fdr_ptr = ecoff_data (abfd)->debug_info.fdr; |
| 906 | fdr_end = fdr_ptr + ecoff_data (abfd)->debug_info.symbolic_header.ifdMax; |
| 907 | for (; fdr_ptr < fdr_end; fdr_ptr++) |
| 908 | { |
| 909 | char *lraw_src; |
| 910 | char *lraw_end; |
| 911 | |
| 912 | lraw_src = ((char *) ecoff_data (abfd)->debug_info.external_sym |
| 913 | + fdr_ptr->isymBase * external_sym_size); |
| 914 | lraw_end = lraw_src + fdr_ptr->csym * external_sym_size; |
| 915 | for (; |
| 916 | lraw_src < lraw_end; |
| 917 | lraw_src += external_sym_size, internal_ptr++) |
| 918 | { |
| 919 | SYMR internal_sym; |
| 920 | |
| 921 | (*swap_sym_in) (abfd, (void *) lraw_src, &internal_sym); |
| 922 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ss |
| 923 | + fdr_ptr->issBase |
| 924 | + internal_sym.iss); |
| 925 | if (!ecoff_set_symbol_info (abfd, &internal_sym, |
| 926 | &internal_ptr->symbol, 0, 0)) |
| 927 | return FALSE; |
| 928 | internal_ptr->fdr = fdr_ptr; |
| 929 | internal_ptr->local = TRUE; |
| 930 | internal_ptr->native = (void *) lraw_src; |
| 931 | } |
| 932 | } |
| 933 | |
| 934 | ecoff_data (abfd)->canonical_symbols = internal; |
| 935 | |
| 936 | return TRUE; |
| 937 | } |
| 938 | |
| 939 | /* Return the amount of space needed for the canonical symbols. */ |
| 940 | |
| 941 | long |
| 942 | _bfd_ecoff_get_symtab_upper_bound (bfd *abfd) |
| 943 | { |
| 944 | if (! _bfd_ecoff_slurp_symbolic_info (abfd, NULL, |
| 945 | &ecoff_data (abfd)->debug_info)) |
| 946 | return -1; |
| 947 | |
| 948 | if (bfd_get_symcount (abfd) == 0) |
| 949 | return 0; |
| 950 | |
| 951 | return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *)); |
| 952 | } |
| 953 | |
| 954 | /* Get the canonical symbols. */ |
| 955 | |
| 956 | long |
| 957 | _bfd_ecoff_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
| 958 | { |
| 959 | unsigned int counter = 0; |
| 960 | ecoff_symbol_type *symbase; |
| 961 | ecoff_symbol_type **location = (ecoff_symbol_type **) alocation; |
| 962 | |
| 963 | if (! _bfd_ecoff_slurp_symbol_table (abfd)) |
| 964 | return -1; |
| 965 | if (bfd_get_symcount (abfd) == 0) |
| 966 | return 0; |
| 967 | |
| 968 | symbase = ecoff_data (abfd)->canonical_symbols; |
| 969 | while (counter < bfd_get_symcount (abfd)) |
| 970 | { |
| 971 | *(location++) = symbase++; |
| 972 | counter++; |
| 973 | } |
| 974 | *location++ = NULL; |
| 975 | return bfd_get_symcount (abfd); |
| 976 | } |
| 977 | |
| 978 | /* Turn ECOFF type information into a printable string. |
| 979 | ecoff_emit_aggregate and ecoff_type_to_string are from |
| 980 | gcc/mips-tdump.c, with swapping added and used_ptr removed. */ |
| 981 | |
| 982 | /* Write aggregate information to a string. */ |
| 983 | |
| 984 | static void |
| 985 | ecoff_emit_aggregate (bfd *abfd, |
| 986 | FDR *fdr, |
| 987 | char *string, |
| 988 | RNDXR *rndx, |
| 989 | long isym, |
| 990 | const char *which) |
| 991 | { |
| 992 | const struct ecoff_debug_swap * const debug_swap = |
| 993 | &ecoff_backend (abfd)->debug_swap; |
| 994 | struct ecoff_debug_info * const debug_info = &ecoff_data (abfd)->debug_info; |
| 995 | unsigned int ifd = rndx->rfd; |
| 996 | unsigned int indx = rndx->index; |
| 997 | const char *name; |
| 998 | |
| 999 | if (ifd == 0xfff) |
| 1000 | ifd = isym; |
| 1001 | |
| 1002 | /* An ifd of -1 is an opaque type. An escaped index of 0 is a |
| 1003 | struct return type of a procedure compiled without -g. */ |
| 1004 | if (ifd == 0xffffffff |
| 1005 | || (rndx->rfd == 0xfff && indx == 0)) |
| 1006 | name = "<undefined>"; |
| 1007 | else if (indx == indexNil) |
| 1008 | name = "<no name>"; |
| 1009 | else |
| 1010 | { |
| 1011 | SYMR sym; |
| 1012 | |
| 1013 | if (debug_info->external_rfd == NULL) |
| 1014 | fdr = debug_info->fdr + ifd; |
| 1015 | else |
| 1016 | { |
| 1017 | RFDT rfd; |
| 1018 | |
| 1019 | (*debug_swap->swap_rfd_in) (abfd, |
| 1020 | ((char *) debug_info->external_rfd |
| 1021 | + ((fdr->rfdBase + ifd) |
| 1022 | * debug_swap->external_rfd_size)), |
| 1023 | &rfd); |
| 1024 | fdr = debug_info->fdr + rfd; |
| 1025 | } |
| 1026 | |
| 1027 | indx += fdr->isymBase; |
| 1028 | |
| 1029 | (*debug_swap->swap_sym_in) (abfd, |
| 1030 | ((char *) debug_info->external_sym |
| 1031 | + indx * debug_swap->external_sym_size), |
| 1032 | &sym); |
| 1033 | |
| 1034 | name = debug_info->ss + fdr->issBase + sym.iss; |
| 1035 | } |
| 1036 | |
| 1037 | sprintf (string, |
| 1038 | "%s %s { ifd = %u, index = %lu }", |
| 1039 | which, name, ifd, |
| 1040 | ((long) indx |
| 1041 | + debug_info->symbolic_header.iextMax)); |
| 1042 | } |
| 1043 | |
| 1044 | /* Convert the type information to string format. */ |
| 1045 | |
| 1046 | static char * |
| 1047 | ecoff_type_to_string (bfd *abfd, FDR *fdr, unsigned int indx) |
| 1048 | { |
| 1049 | union aux_ext *aux_ptr; |
| 1050 | int bigendian; |
| 1051 | AUXU u; |
| 1052 | struct qual |
| 1053 | { |
| 1054 | unsigned int type; |
| 1055 | int low_bound; |
| 1056 | int high_bound; |
| 1057 | int stride; |
| 1058 | } qualifiers[7]; |
| 1059 | unsigned int basic_type; |
| 1060 | int i; |
| 1061 | char buffer1[1024]; |
| 1062 | static char buffer2[1024]; |
| 1063 | char *p1 = buffer1; |
| 1064 | char *p2 = buffer2; |
| 1065 | RNDXR rndx; |
| 1066 | |
| 1067 | aux_ptr = ecoff_data (abfd)->debug_info.external_aux + fdr->iauxBase; |
| 1068 | bigendian = fdr->fBigendian; |
| 1069 | |
| 1070 | for (i = 0; i < 7; i++) |
| 1071 | { |
| 1072 | qualifiers[i].low_bound = 0; |
| 1073 | qualifiers[i].high_bound = 0; |
| 1074 | qualifiers[i].stride = 0; |
| 1075 | } |
| 1076 | |
| 1077 | if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == (bfd_vma) -1) |
| 1078 | return "-1 (no type)"; |
| 1079 | _bfd_ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti); |
| 1080 | |
| 1081 | basic_type = u.ti.bt; |
| 1082 | qualifiers[0].type = u.ti.tq0; |
| 1083 | qualifiers[1].type = u.ti.tq1; |
| 1084 | qualifiers[2].type = u.ti.tq2; |
| 1085 | qualifiers[3].type = u.ti.tq3; |
| 1086 | qualifiers[4].type = u.ti.tq4; |
| 1087 | qualifiers[5].type = u.ti.tq5; |
| 1088 | qualifiers[6].type = tqNil; |
| 1089 | |
| 1090 | /* Go get the basic type. */ |
| 1091 | switch (basic_type) |
| 1092 | { |
| 1093 | case btNil: /* Undefined. */ |
| 1094 | strcpy (p1, "nil"); |
| 1095 | break; |
| 1096 | |
| 1097 | case btAdr: /* Address - integer same size as pointer. */ |
| 1098 | strcpy (p1, "address"); |
| 1099 | break; |
| 1100 | |
| 1101 | case btChar: /* Character. */ |
| 1102 | strcpy (p1, "char"); |
| 1103 | break; |
| 1104 | |
| 1105 | case btUChar: /* Unsigned character. */ |
| 1106 | strcpy (p1, "unsigned char"); |
| 1107 | break; |
| 1108 | |
| 1109 | case btShort: /* Short. */ |
| 1110 | strcpy (p1, "short"); |
| 1111 | break; |
| 1112 | |
| 1113 | case btUShort: /* Unsigned short. */ |
| 1114 | strcpy (p1, "unsigned short"); |
| 1115 | break; |
| 1116 | |
| 1117 | case btInt: /* Int. */ |
| 1118 | strcpy (p1, "int"); |
| 1119 | break; |
| 1120 | |
| 1121 | case btUInt: /* Unsigned int. */ |
| 1122 | strcpy (p1, "unsigned int"); |
| 1123 | break; |
| 1124 | |
| 1125 | case btLong: /* Long. */ |
| 1126 | strcpy (p1, "long"); |
| 1127 | break; |
| 1128 | |
| 1129 | case btULong: /* Unsigned long. */ |
| 1130 | strcpy (p1, "unsigned long"); |
| 1131 | break; |
| 1132 | |
| 1133 | case btFloat: /* Float (real). */ |
| 1134 | strcpy (p1, "float"); |
| 1135 | break; |
| 1136 | |
| 1137 | case btDouble: /* Double (real). */ |
| 1138 | strcpy (p1, "double"); |
| 1139 | break; |
| 1140 | |
| 1141 | /* Structures add 1-2 aux words: |
| 1142 | 1st word is [ST_RFDESCAPE, offset] pointer to struct def; |
| 1143 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ |
| 1144 | |
| 1145 | case btStruct: /* Structure (Record). */ |
| 1146 | _bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); |
| 1147 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, |
| 1148 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
| 1149 | "struct"); |
| 1150 | indx++; /* Skip aux words. */ |
| 1151 | break; |
| 1152 | |
| 1153 | /* Unions add 1-2 aux words: |
| 1154 | 1st word is [ST_RFDESCAPE, offset] pointer to union def; |
| 1155 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ |
| 1156 | |
| 1157 | case btUnion: /* Union. */ |
| 1158 | _bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); |
| 1159 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, |
| 1160 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
| 1161 | "union"); |
| 1162 | indx++; /* Skip aux words. */ |
| 1163 | break; |
| 1164 | |
| 1165 | /* Enumerations add 1-2 aux words: |
| 1166 | 1st word is [ST_RFDESCAPE, offset] pointer to enum def; |
| 1167 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ |
| 1168 | |
| 1169 | case btEnum: /* Enumeration. */ |
| 1170 | _bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); |
| 1171 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, |
| 1172 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
| 1173 | "enum"); |
| 1174 | indx++; /* Skip aux words. */ |
| 1175 | break; |
| 1176 | |
| 1177 | case btTypedef: /* Defined via a typedef, isymRef points. */ |
| 1178 | strcpy (p1, "typedef"); |
| 1179 | break; |
| 1180 | |
| 1181 | case btRange: /* Subrange of int. */ |
| 1182 | strcpy (p1, "subrange"); |
| 1183 | break; |
| 1184 | |
| 1185 | case btSet: /* Pascal sets. */ |
| 1186 | strcpy (p1, "set"); |
| 1187 | break; |
| 1188 | |
| 1189 | case btComplex: /* Fortran complex. */ |
| 1190 | strcpy (p1, "complex"); |
| 1191 | break; |
| 1192 | |
| 1193 | case btDComplex: /* Fortran double complex. */ |
| 1194 | strcpy (p1, "double complex"); |
| 1195 | break; |
| 1196 | |
| 1197 | case btIndirect: /* Forward or unnamed typedef. */ |
| 1198 | strcpy (p1, "forward/unamed typedef"); |
| 1199 | break; |
| 1200 | |
| 1201 | case btFixedDec: /* Fixed Decimal. */ |
| 1202 | strcpy (p1, "fixed decimal"); |
| 1203 | break; |
| 1204 | |
| 1205 | case btFloatDec: /* Float Decimal. */ |
| 1206 | strcpy (p1, "float decimal"); |
| 1207 | break; |
| 1208 | |
| 1209 | case btString: /* Varying Length Character String. */ |
| 1210 | strcpy (p1, "string"); |
| 1211 | break; |
| 1212 | |
| 1213 | case btBit: /* Aligned Bit String. */ |
| 1214 | strcpy (p1, "bit"); |
| 1215 | break; |
| 1216 | |
| 1217 | case btPicture: /* Picture. */ |
| 1218 | strcpy (p1, "picture"); |
| 1219 | break; |
| 1220 | |
| 1221 | case btVoid: /* Void. */ |
| 1222 | strcpy (p1, "void"); |
| 1223 | break; |
| 1224 | |
| 1225 | default: |
| 1226 | sprintf (p1, _("Unknown basic type %d"), (int) basic_type); |
| 1227 | break; |
| 1228 | } |
| 1229 | |
| 1230 | p1 += strlen (buffer1); |
| 1231 | |
| 1232 | /* If this is a bitfield, get the bitsize. */ |
| 1233 | if (u.ti.fBitfield) |
| 1234 | { |
| 1235 | int bitsize; |
| 1236 | |
| 1237 | bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]); |
| 1238 | sprintf (p1, " : %d", bitsize); |
| 1239 | p1 += strlen (buffer1); |
| 1240 | } |
| 1241 | |
| 1242 | /* Deal with any qualifiers. */ |
| 1243 | if (qualifiers[0].type != tqNil) |
| 1244 | { |
| 1245 | /* Snarf up any array bounds in the correct order. Arrays |
| 1246 | store 5 successive words in the aux. table: |
| 1247 | word 0 RNDXR to type of the bounds (ie, int) |
| 1248 | word 1 Current file descriptor index |
| 1249 | word 2 low bound |
| 1250 | word 3 high bound (or -1 if []) |
| 1251 | word 4 stride size in bits. */ |
| 1252 | for (i = 0; i < 7; i++) |
| 1253 | { |
| 1254 | if (qualifiers[i].type == tqArray) |
| 1255 | { |
| 1256 | qualifiers[i].low_bound = |
| 1257 | AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]); |
| 1258 | qualifiers[i].high_bound = |
| 1259 | AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]); |
| 1260 | qualifiers[i].stride = |
| 1261 | AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]); |
| 1262 | indx += 5; |
| 1263 | } |
| 1264 | } |
| 1265 | |
| 1266 | /* Now print out the qualifiers. */ |
| 1267 | for (i = 0; i < 6; i++) |
| 1268 | { |
| 1269 | switch (qualifiers[i].type) |
| 1270 | { |
| 1271 | case tqNil: |
| 1272 | case tqMax: |
| 1273 | break; |
| 1274 | |
| 1275 | case tqPtr: |
| 1276 | strcpy (p2, "ptr to "); |
| 1277 | p2 += sizeof ("ptr to ")-1; |
| 1278 | break; |
| 1279 | |
| 1280 | case tqVol: |
| 1281 | strcpy (p2, "volatile "); |
| 1282 | p2 += sizeof ("volatile ")-1; |
| 1283 | break; |
| 1284 | |
| 1285 | case tqFar: |
| 1286 | strcpy (p2, "far "); |
| 1287 | p2 += sizeof ("far ")-1; |
| 1288 | break; |
| 1289 | |
| 1290 | case tqProc: |
| 1291 | strcpy (p2, "func. ret. "); |
| 1292 | p2 += sizeof ("func. ret. "); |
| 1293 | break; |
| 1294 | |
| 1295 | case tqArray: |
| 1296 | { |
| 1297 | int first_array = i; |
| 1298 | int j; |
| 1299 | |
| 1300 | /* Print array bounds reversed (ie, in the order the C |
| 1301 | programmer writes them). C is such a fun language.... */ |
| 1302 | while (i < 5 && qualifiers[i+1].type == tqArray) |
| 1303 | i++; |
| 1304 | |
| 1305 | for (j = i; j >= first_array; j--) |
| 1306 | { |
| 1307 | strcpy (p2, "array ["); |
| 1308 | p2 += sizeof ("array [")-1; |
| 1309 | if (qualifiers[j].low_bound != 0) |
| 1310 | sprintf (p2, |
| 1311 | "%ld:%ld {%ld bits}", |
| 1312 | (long) qualifiers[j].low_bound, |
| 1313 | (long) qualifiers[j].high_bound, |
| 1314 | (long) qualifiers[j].stride); |
| 1315 | |
| 1316 | else if (qualifiers[j].high_bound != -1) |
| 1317 | sprintf (p2, |
| 1318 | "%ld {%ld bits}", |
| 1319 | (long) (qualifiers[j].high_bound + 1), |
| 1320 | (long) (qualifiers[j].stride)); |
| 1321 | |
| 1322 | else |
| 1323 | sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride)); |
| 1324 | |
| 1325 | p2 += strlen (p2); |
| 1326 | strcpy (p2, "] of "); |
| 1327 | p2 += sizeof ("] of ")-1; |
| 1328 | } |
| 1329 | } |
| 1330 | break; |
| 1331 | } |
| 1332 | } |
| 1333 | } |
| 1334 | |
| 1335 | strcpy (p2, buffer1); |
| 1336 | return buffer2; |
| 1337 | } |
| 1338 | |
| 1339 | /* Return information about ECOFF symbol SYMBOL in RET. */ |
| 1340 | |
| 1341 | void |
| 1342 | _bfd_ecoff_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
| 1343 | asymbol *symbol, |
| 1344 | symbol_info *ret) |
| 1345 | { |
| 1346 | bfd_symbol_info (symbol, ret); |
| 1347 | } |
| 1348 | |
| 1349 | /* Return whether this is a local label. */ |
| 1350 | |
| 1351 | bfd_boolean |
| 1352 | _bfd_ecoff_bfd_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
| 1353 | const char *name) |
| 1354 | { |
| 1355 | return name[0] == '$'; |
| 1356 | } |
| 1357 | |
| 1358 | /* Print information about an ECOFF symbol. */ |
| 1359 | |
| 1360 | void |
| 1361 | _bfd_ecoff_print_symbol (bfd *abfd, |
| 1362 | void * filep, |
| 1363 | asymbol *symbol, |
| 1364 | bfd_print_symbol_type how) |
| 1365 | { |
| 1366 | const struct ecoff_debug_swap * const debug_swap |
| 1367 | = &ecoff_backend (abfd)->debug_swap; |
| 1368 | FILE *file = (FILE *)filep; |
| 1369 | |
| 1370 | switch (how) |
| 1371 | { |
| 1372 | case bfd_print_symbol_name: |
| 1373 | fprintf (file, "%s", symbol->name); |
| 1374 | break; |
| 1375 | case bfd_print_symbol_more: |
| 1376 | if (ecoffsymbol (symbol)->local) |
| 1377 | { |
| 1378 | SYMR ecoff_sym; |
| 1379 | |
| 1380 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, |
| 1381 | &ecoff_sym); |
| 1382 | fprintf (file, "ecoff local "); |
| 1383 | fprintf_vma (file, (bfd_vma) ecoff_sym.value); |
| 1384 | fprintf (file, " %x %x", (unsigned) ecoff_sym.st, |
| 1385 | (unsigned) ecoff_sym.sc); |
| 1386 | } |
| 1387 | else |
| 1388 | { |
| 1389 | EXTR ecoff_ext; |
| 1390 | |
| 1391 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, |
| 1392 | &ecoff_ext); |
| 1393 | fprintf (file, "ecoff extern "); |
| 1394 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); |
| 1395 | fprintf (file, " %x %x", (unsigned) ecoff_ext.asym.st, |
| 1396 | (unsigned) ecoff_ext.asym.sc); |
| 1397 | } |
| 1398 | break; |
| 1399 | case bfd_print_symbol_all: |
| 1400 | /* Print out the symbols in a reasonable way. */ |
| 1401 | { |
| 1402 | char type; |
| 1403 | int pos; |
| 1404 | EXTR ecoff_ext; |
| 1405 | char jmptbl; |
| 1406 | char cobol_main; |
| 1407 | char weakext; |
| 1408 | |
| 1409 | if (ecoffsymbol (symbol)->local) |
| 1410 | { |
| 1411 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, |
| 1412 | &ecoff_ext.asym); |
| 1413 | type = 'l'; |
| 1414 | pos = ((((char *) ecoffsymbol (symbol)->native |
| 1415 | - (char *) ecoff_data (abfd)->debug_info.external_sym) |
| 1416 | / debug_swap->external_sym_size) |
| 1417 | + ecoff_data (abfd)->debug_info.symbolic_header.iextMax); |
| 1418 | jmptbl = ' '; |
| 1419 | cobol_main = ' '; |
| 1420 | weakext = ' '; |
| 1421 | } |
| 1422 | else |
| 1423 | { |
| 1424 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, |
| 1425 | &ecoff_ext); |
| 1426 | type = 'e'; |
| 1427 | pos = (((char *) ecoffsymbol (symbol)->native |
| 1428 | - (char *) ecoff_data (abfd)->debug_info.external_ext) |
| 1429 | / debug_swap->external_ext_size); |
| 1430 | jmptbl = ecoff_ext.jmptbl ? 'j' : ' '; |
| 1431 | cobol_main = ecoff_ext.cobol_main ? 'c' : ' '; |
| 1432 | weakext = ecoff_ext.weakext ? 'w' : ' '; |
| 1433 | } |
| 1434 | |
| 1435 | fprintf (file, "[%3d] %c ", |
| 1436 | pos, type); |
| 1437 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); |
| 1438 | fprintf (file, " st %x sc %x indx %x %c%c%c %s", |
| 1439 | (unsigned) ecoff_ext.asym.st, |
| 1440 | (unsigned) ecoff_ext.asym.sc, |
| 1441 | (unsigned) ecoff_ext.asym.index, |
| 1442 | jmptbl, cobol_main, weakext, |
| 1443 | symbol->name); |
| 1444 | |
| 1445 | if (ecoffsymbol (symbol)->fdr != NULL |
| 1446 | && ecoff_ext.asym.index != indexNil) |
| 1447 | { |
| 1448 | FDR *fdr; |
| 1449 | unsigned int indx; |
| 1450 | int bigendian; |
| 1451 | bfd_size_type sym_base; |
| 1452 | union aux_ext *aux_base; |
| 1453 | |
| 1454 | fdr = ecoffsymbol (symbol)->fdr; |
| 1455 | indx = ecoff_ext.asym.index; |
| 1456 | |
| 1457 | /* sym_base is used to map the fdr relative indices which |
| 1458 | appear in the file to the position number which we are |
| 1459 | using. */ |
| 1460 | sym_base = fdr->isymBase; |
| 1461 | if (ecoffsymbol (symbol)->local) |
| 1462 | sym_base += |
| 1463 | ecoff_data (abfd)->debug_info.symbolic_header.iextMax; |
| 1464 | |
| 1465 | /* aux_base is the start of the aux entries for this file; |
| 1466 | asym.index is an offset from this. */ |
| 1467 | aux_base = (ecoff_data (abfd)->debug_info.external_aux |
| 1468 | + fdr->iauxBase); |
| 1469 | |
| 1470 | /* The aux entries are stored in host byte order; the |
| 1471 | order is indicated by a bit in the fdr. */ |
| 1472 | bigendian = fdr->fBigendian; |
| 1473 | |
| 1474 | /* This switch is basically from gcc/mips-tdump.c. */ |
| 1475 | switch (ecoff_ext.asym.st) |
| 1476 | { |
| 1477 | case stNil: |
| 1478 | case stLabel: |
| 1479 | break; |
| 1480 | |
| 1481 | case stFile: |
| 1482 | case stBlock: |
| 1483 | fprintf (file, _("\n End+1 symbol: %ld"), |
| 1484 | (long) (indx + sym_base)); |
| 1485 | break; |
| 1486 | |
| 1487 | case stEnd: |
| 1488 | if (ecoff_ext.asym.sc == scText |
| 1489 | || ecoff_ext.asym.sc == scInfo) |
| 1490 | fprintf (file, _("\n First symbol: %ld"), |
| 1491 | (long) (indx + sym_base)); |
| 1492 | else |
| 1493 | fprintf (file, _("\n First symbol: %ld"), |
| 1494 | ((long) |
| 1495 | (AUX_GET_ISYM (bigendian, |
| 1496 | &aux_base[ecoff_ext.asym.index]) |
| 1497 | + sym_base))); |
| 1498 | break; |
| 1499 | |
| 1500 | case stProc: |
| 1501 | case stStaticProc: |
| 1502 | if (ECOFF_IS_STAB (&ecoff_ext.asym)) |
| 1503 | ; |
| 1504 | else if (ecoffsymbol (symbol)->local) |
| 1505 | fprintf (file, _("\n End+1 symbol: %-7ld Type: %s"), |
| 1506 | ((long) |
| 1507 | (AUX_GET_ISYM (bigendian, |
| 1508 | &aux_base[ecoff_ext.asym.index]) |
| 1509 | + sym_base)), |
| 1510 | ecoff_type_to_string (abfd, fdr, indx + 1)); |
| 1511 | else |
| 1512 | fprintf (file, _("\n Local symbol: %ld"), |
| 1513 | ((long) indx |
| 1514 | + (long) sym_base |
| 1515 | + (ecoff_data (abfd) |
| 1516 | ->debug_info.symbolic_header.iextMax))); |
| 1517 | break; |
| 1518 | |
| 1519 | case stStruct: |
| 1520 | fprintf (file, _("\n struct; End+1 symbol: %ld"), |
| 1521 | (long) (indx + sym_base)); |
| 1522 | break; |
| 1523 | |
| 1524 | case stUnion: |
| 1525 | fprintf (file, _("\n union; End+1 symbol: %ld"), |
| 1526 | (long) (indx + sym_base)); |
| 1527 | break; |
| 1528 | |
| 1529 | case stEnum: |
| 1530 | fprintf (file, _("\n enum; End+1 symbol: %ld"), |
| 1531 | (long) (indx + sym_base)); |
| 1532 | break; |
| 1533 | |
| 1534 | default: |
| 1535 | if (! ECOFF_IS_STAB (&ecoff_ext.asym)) |
| 1536 | fprintf (file, _("\n Type: %s"), |
| 1537 | ecoff_type_to_string (abfd, fdr, indx)); |
| 1538 | break; |
| 1539 | } |
| 1540 | } |
| 1541 | } |
| 1542 | break; |
| 1543 | } |
| 1544 | } |
| 1545 | \f |
| 1546 | /* Read in the relocs for a section. */ |
| 1547 | |
| 1548 | static bfd_boolean |
| 1549 | ecoff_slurp_reloc_table (bfd *abfd, |
| 1550 | asection *section, |
| 1551 | asymbol **symbols) |
| 1552 | { |
| 1553 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 1554 | arelent *internal_relocs; |
| 1555 | bfd_size_type external_reloc_size; |
| 1556 | bfd_size_type amt; |
| 1557 | char *external_relocs; |
| 1558 | arelent *rptr; |
| 1559 | unsigned int i; |
| 1560 | |
| 1561 | if (section->relocation != NULL |
| 1562 | || section->reloc_count == 0 |
| 1563 | || (section->flags & SEC_CONSTRUCTOR) != 0) |
| 1564 | return TRUE; |
| 1565 | |
| 1566 | if (! _bfd_ecoff_slurp_symbol_table (abfd)) |
| 1567 | return FALSE; |
| 1568 | |
| 1569 | amt = section->reloc_count; |
| 1570 | amt *= sizeof (arelent); |
| 1571 | internal_relocs = bfd_alloc (abfd, amt); |
| 1572 | |
| 1573 | external_reloc_size = backend->external_reloc_size; |
| 1574 | amt = external_reloc_size * section->reloc_count; |
| 1575 | external_relocs = bfd_alloc (abfd, amt); |
| 1576 | if (internal_relocs == NULL || external_relocs == NULL) |
| 1577 | return FALSE; |
| 1578 | if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0) |
| 1579 | return FALSE; |
| 1580 | if (bfd_bread (external_relocs, amt, abfd) != amt) |
| 1581 | return FALSE; |
| 1582 | |
| 1583 | for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++) |
| 1584 | { |
| 1585 | struct internal_reloc intern; |
| 1586 | |
| 1587 | (*backend->swap_reloc_in) (abfd, |
| 1588 | external_relocs + i * external_reloc_size, |
| 1589 | &intern); |
| 1590 | |
| 1591 | if (intern.r_extern) |
| 1592 | { |
| 1593 | /* r_symndx is an index into the external symbols. */ |
| 1594 | BFD_ASSERT (intern.r_symndx >= 0 |
| 1595 | && (intern.r_symndx |
| 1596 | < (ecoff_data (abfd) |
| 1597 | ->debug_info.symbolic_header.iextMax))); |
| 1598 | rptr->sym_ptr_ptr = symbols + intern.r_symndx; |
| 1599 | rptr->addend = 0; |
| 1600 | } |
| 1601 | else if (intern.r_symndx == RELOC_SECTION_NONE |
| 1602 | || intern.r_symndx == RELOC_SECTION_ABS) |
| 1603 | { |
| 1604 | rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
| 1605 | rptr->addend = 0; |
| 1606 | } |
| 1607 | else |
| 1608 | { |
| 1609 | const char *sec_name; |
| 1610 | asection *sec; |
| 1611 | |
| 1612 | /* r_symndx is a section key. */ |
| 1613 | switch (intern.r_symndx) |
| 1614 | { |
| 1615 | case RELOC_SECTION_TEXT: sec_name = _TEXT; break; |
| 1616 | case RELOC_SECTION_RDATA: sec_name = _RDATA; break; |
| 1617 | case RELOC_SECTION_DATA: sec_name = _DATA; break; |
| 1618 | case RELOC_SECTION_SDATA: sec_name = _SDATA; break; |
| 1619 | case RELOC_SECTION_SBSS: sec_name = _SBSS; break; |
| 1620 | case RELOC_SECTION_BSS: sec_name = _BSS; break; |
| 1621 | case RELOC_SECTION_INIT: sec_name = _INIT; break; |
| 1622 | case RELOC_SECTION_LIT8: sec_name = _LIT8; break; |
| 1623 | case RELOC_SECTION_LIT4: sec_name = _LIT4; break; |
| 1624 | case RELOC_SECTION_XDATA: sec_name = _XDATA; break; |
| 1625 | case RELOC_SECTION_PDATA: sec_name = _PDATA; break; |
| 1626 | case RELOC_SECTION_FINI: sec_name = _FINI; break; |
| 1627 | case RELOC_SECTION_LITA: sec_name = _LITA; break; |
| 1628 | case RELOC_SECTION_RCONST: sec_name = _RCONST; break; |
| 1629 | default: abort (); |
| 1630 | } |
| 1631 | |
| 1632 | sec = bfd_get_section_by_name (abfd, sec_name); |
| 1633 | if (sec == NULL) |
| 1634 | abort (); |
| 1635 | rptr->sym_ptr_ptr = sec->symbol_ptr_ptr; |
| 1636 | |
| 1637 | rptr->addend = - bfd_get_section_vma (abfd, sec); |
| 1638 | } |
| 1639 | |
| 1640 | rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section); |
| 1641 | |
| 1642 | /* Let the backend select the howto field and do any other |
| 1643 | required processing. */ |
| 1644 | (*backend->adjust_reloc_in) (abfd, &intern, rptr); |
| 1645 | } |
| 1646 | |
| 1647 | bfd_release (abfd, external_relocs); |
| 1648 | |
| 1649 | section->relocation = internal_relocs; |
| 1650 | |
| 1651 | return TRUE; |
| 1652 | } |
| 1653 | |
| 1654 | /* Get a canonical list of relocs. */ |
| 1655 | |
| 1656 | long |
| 1657 | _bfd_ecoff_canonicalize_reloc (bfd *abfd, |
| 1658 | asection *section, |
| 1659 | arelent **relptr, |
| 1660 | asymbol **symbols) |
| 1661 | { |
| 1662 | unsigned int count; |
| 1663 | |
| 1664 | if (section->flags & SEC_CONSTRUCTOR) |
| 1665 | { |
| 1666 | arelent_chain *chain; |
| 1667 | |
| 1668 | /* This section has relocs made up by us, not the file, so take |
| 1669 | them out of their chain and place them into the data area |
| 1670 | provided. */ |
| 1671 | for (count = 0, chain = section->constructor_chain; |
| 1672 | count < section->reloc_count; |
| 1673 | count++, chain = chain->next) |
| 1674 | *relptr++ = &chain->relent; |
| 1675 | } |
| 1676 | else |
| 1677 | { |
| 1678 | arelent *tblptr; |
| 1679 | |
| 1680 | if (! ecoff_slurp_reloc_table (abfd, section, symbols)) |
| 1681 | return -1; |
| 1682 | |
| 1683 | tblptr = section->relocation; |
| 1684 | |
| 1685 | for (count = 0; count < section->reloc_count; count++) |
| 1686 | *relptr++ = tblptr++; |
| 1687 | } |
| 1688 | |
| 1689 | *relptr = NULL; |
| 1690 | |
| 1691 | return section->reloc_count; |
| 1692 | } |
| 1693 | \f |
| 1694 | /* Provided a BFD, a section and an offset into the section, calculate |
| 1695 | and return the name of the source file and the line nearest to the |
| 1696 | wanted location. */ |
| 1697 | |
| 1698 | bfd_boolean |
| 1699 | _bfd_ecoff_find_nearest_line (bfd *abfd, |
| 1700 | asection *section, |
| 1701 | asymbol **ignore_symbols ATTRIBUTE_UNUSED, |
| 1702 | bfd_vma offset, |
| 1703 | const char **filename_ptr, |
| 1704 | const char **functionname_ptr, |
| 1705 | unsigned int *retline_ptr) |
| 1706 | { |
| 1707 | const struct ecoff_debug_swap * const debug_swap |
| 1708 | = &ecoff_backend (abfd)->debug_swap; |
| 1709 | struct ecoff_debug_info * const debug_info = &ecoff_data (abfd)->debug_info; |
| 1710 | struct ecoff_find_line *line_info; |
| 1711 | |
| 1712 | /* Make sure we have the FDR's. */ |
| 1713 | if (! _bfd_ecoff_slurp_symbolic_info (abfd, NULL, debug_info) |
| 1714 | || bfd_get_symcount (abfd) == 0) |
| 1715 | return FALSE; |
| 1716 | |
| 1717 | if (ecoff_data (abfd)->find_line_info == NULL) |
| 1718 | { |
| 1719 | bfd_size_type amt = sizeof (struct ecoff_find_line); |
| 1720 | |
| 1721 | ecoff_data (abfd)->find_line_info = bfd_zalloc (abfd, amt); |
| 1722 | if (ecoff_data (abfd)->find_line_info == NULL) |
| 1723 | return FALSE; |
| 1724 | } |
| 1725 | line_info = ecoff_data (abfd)->find_line_info; |
| 1726 | |
| 1727 | return _bfd_ecoff_locate_line (abfd, section, offset, debug_info, |
| 1728 | debug_swap, line_info, filename_ptr, |
| 1729 | functionname_ptr, retline_ptr); |
| 1730 | } |
| 1731 | \f |
| 1732 | /* Copy private BFD data. This is called by objcopy and strip. We |
| 1733 | use it to copy the ECOFF debugging information from one BFD to the |
| 1734 | other. It would be theoretically possible to represent the ECOFF |
| 1735 | debugging information in the symbol table. However, it would be a |
| 1736 | lot of work, and there would be little gain (gas, gdb, and ld |
| 1737 | already access the ECOFF debugging information via the |
| 1738 | ecoff_debug_info structure, and that structure would have to be |
| 1739 | retained in order to support ECOFF debugging in MIPS ELF). |
| 1740 | |
| 1741 | The debugging information for the ECOFF external symbols comes from |
| 1742 | the symbol table, so this function only handles the other debugging |
| 1743 | information. */ |
| 1744 | |
| 1745 | bfd_boolean |
| 1746 | _bfd_ecoff_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
| 1747 | { |
| 1748 | struct ecoff_debug_info *iinfo = &ecoff_data (ibfd)->debug_info; |
| 1749 | struct ecoff_debug_info *oinfo = &ecoff_data (obfd)->debug_info; |
| 1750 | int i; |
| 1751 | asymbol **sym_ptr_ptr; |
| 1752 | size_t c; |
| 1753 | bfd_boolean local; |
| 1754 | |
| 1755 | /* We only want to copy information over if both BFD's use ECOFF |
| 1756 | format. */ |
| 1757 | if (bfd_get_flavour (ibfd) != bfd_target_ecoff_flavour |
| 1758 | || bfd_get_flavour (obfd) != bfd_target_ecoff_flavour) |
| 1759 | return TRUE; |
| 1760 | |
| 1761 | /* Copy the GP value and the register masks. */ |
| 1762 | ecoff_data (obfd)->gp = ecoff_data (ibfd)->gp; |
| 1763 | ecoff_data (obfd)->gprmask = ecoff_data (ibfd)->gprmask; |
| 1764 | ecoff_data (obfd)->fprmask = ecoff_data (ibfd)->fprmask; |
| 1765 | for (i = 0; i < 3; i++) |
| 1766 | ecoff_data (obfd)->cprmask[i] = ecoff_data (ibfd)->cprmask[i]; |
| 1767 | |
| 1768 | /* Copy the version stamp. */ |
| 1769 | oinfo->symbolic_header.vstamp = iinfo->symbolic_header.vstamp; |
| 1770 | |
| 1771 | /* If there are no symbols, don't copy any debugging information. */ |
| 1772 | c = bfd_get_symcount (obfd); |
| 1773 | sym_ptr_ptr = bfd_get_outsymbols (obfd); |
| 1774 | if (c == 0 || sym_ptr_ptr == NULL) |
| 1775 | return TRUE; |
| 1776 | |
| 1777 | /* See if there are any local symbols. */ |
| 1778 | local = FALSE; |
| 1779 | for (; c > 0; c--, sym_ptr_ptr++) |
| 1780 | { |
| 1781 | if (ecoffsymbol (*sym_ptr_ptr)->local) |
| 1782 | { |
| 1783 | local = TRUE; |
| 1784 | break; |
| 1785 | } |
| 1786 | } |
| 1787 | |
| 1788 | if (local) |
| 1789 | { |
| 1790 | /* There are some local symbols. We just bring over all the |
| 1791 | debugging information. FIXME: This is not quite the right |
| 1792 | thing to do. If the user has asked us to discard all |
| 1793 | debugging information, then we are probably going to wind up |
| 1794 | keeping it because there will probably be some local symbol |
| 1795 | which objcopy did not discard. We should actually break |
| 1796 | apart the debugging information and only keep that which |
| 1797 | applies to the symbols we want to keep. */ |
| 1798 | oinfo->symbolic_header.ilineMax = iinfo->symbolic_header.ilineMax; |
| 1799 | oinfo->symbolic_header.cbLine = iinfo->symbolic_header.cbLine; |
| 1800 | oinfo->line = iinfo->line; |
| 1801 | |
| 1802 | oinfo->symbolic_header.idnMax = iinfo->symbolic_header.idnMax; |
| 1803 | oinfo->external_dnr = iinfo->external_dnr; |
| 1804 | |
| 1805 | oinfo->symbolic_header.ipdMax = iinfo->symbolic_header.ipdMax; |
| 1806 | oinfo->external_pdr = iinfo->external_pdr; |
| 1807 | |
| 1808 | oinfo->symbolic_header.isymMax = iinfo->symbolic_header.isymMax; |
| 1809 | oinfo->external_sym = iinfo->external_sym; |
| 1810 | |
| 1811 | oinfo->symbolic_header.ioptMax = iinfo->symbolic_header.ioptMax; |
| 1812 | oinfo->external_opt = iinfo->external_opt; |
| 1813 | |
| 1814 | oinfo->symbolic_header.iauxMax = iinfo->symbolic_header.iauxMax; |
| 1815 | oinfo->external_aux = iinfo->external_aux; |
| 1816 | |
| 1817 | oinfo->symbolic_header.issMax = iinfo->symbolic_header.issMax; |
| 1818 | oinfo->ss = iinfo->ss; |
| 1819 | |
| 1820 | oinfo->symbolic_header.ifdMax = iinfo->symbolic_header.ifdMax; |
| 1821 | oinfo->external_fdr = iinfo->external_fdr; |
| 1822 | |
| 1823 | oinfo->symbolic_header.crfd = iinfo->symbolic_header.crfd; |
| 1824 | oinfo->external_rfd = iinfo->external_rfd; |
| 1825 | } |
| 1826 | else |
| 1827 | { |
| 1828 | /* We are discarding all the local symbol information. Look |
| 1829 | through the external symbols and remove all references to FDR |
| 1830 | or aux information. */ |
| 1831 | c = bfd_get_symcount (obfd); |
| 1832 | sym_ptr_ptr = bfd_get_outsymbols (obfd); |
| 1833 | for (; c > 0; c--, sym_ptr_ptr++) |
| 1834 | { |
| 1835 | EXTR esym; |
| 1836 | |
| 1837 | (*(ecoff_backend (obfd)->debug_swap.swap_ext_in)) |
| 1838 | (obfd, ecoffsymbol (*sym_ptr_ptr)->native, &esym); |
| 1839 | esym.ifd = ifdNil; |
| 1840 | esym.asym.index = indexNil; |
| 1841 | (*(ecoff_backend (obfd)->debug_swap.swap_ext_out)) |
| 1842 | (obfd, &esym, ecoffsymbol (*sym_ptr_ptr)->native); |
| 1843 | } |
| 1844 | } |
| 1845 | |
| 1846 | return TRUE; |
| 1847 | } |
| 1848 | \f |
| 1849 | /* Set the architecture. The supported architecture is stored in the |
| 1850 | backend pointer. We always set the architecture anyhow, since many |
| 1851 | callers ignore the return value. */ |
| 1852 | |
| 1853 | bfd_boolean |
| 1854 | _bfd_ecoff_set_arch_mach (bfd *abfd, |
| 1855 | enum bfd_architecture arch, |
| 1856 | unsigned long machine) |
| 1857 | { |
| 1858 | bfd_default_set_arch_mach (abfd, arch, machine); |
| 1859 | return arch == ecoff_backend (abfd)->arch; |
| 1860 | } |
| 1861 | |
| 1862 | /* Get the size of the section headers. */ |
| 1863 | |
| 1864 | int |
| 1865 | _bfd_ecoff_sizeof_headers (bfd *abfd, |
| 1866 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
| 1867 | { |
| 1868 | asection *current; |
| 1869 | int c; |
| 1870 | int ret; |
| 1871 | |
| 1872 | c = 0; |
| 1873 | for (current = abfd->sections; |
| 1874 | current != NULL; |
| 1875 | current = current->next) |
| 1876 | ++c; |
| 1877 | |
| 1878 | ret = (bfd_coff_filhsz (abfd) |
| 1879 | + bfd_coff_aoutsz (abfd) |
| 1880 | + c * bfd_coff_scnhsz (abfd)); |
| 1881 | return BFD_ALIGN (ret, 16); |
| 1882 | } |
| 1883 | |
| 1884 | /* Get the contents of a section. */ |
| 1885 | |
| 1886 | bfd_boolean |
| 1887 | _bfd_ecoff_get_section_contents (bfd *abfd, |
| 1888 | asection *section, |
| 1889 | void * location, |
| 1890 | file_ptr offset, |
| 1891 | bfd_size_type count) |
| 1892 | { |
| 1893 | return _bfd_generic_get_section_contents (abfd, section, location, |
| 1894 | offset, count); |
| 1895 | } |
| 1896 | |
| 1897 | /* Sort sections by VMA, but put SEC_ALLOC sections first. This is |
| 1898 | called via qsort. */ |
| 1899 | |
| 1900 | static int |
| 1901 | ecoff_sort_hdrs (const void * arg1, const void * arg2) |
| 1902 | { |
| 1903 | const asection *hdr1 = *(const asection **) arg1; |
| 1904 | const asection *hdr2 = *(const asection **) arg2; |
| 1905 | |
| 1906 | if ((hdr1->flags & SEC_ALLOC) != 0) |
| 1907 | { |
| 1908 | if ((hdr2->flags & SEC_ALLOC) == 0) |
| 1909 | return -1; |
| 1910 | } |
| 1911 | else |
| 1912 | { |
| 1913 | if ((hdr2->flags & SEC_ALLOC) != 0) |
| 1914 | return 1; |
| 1915 | } |
| 1916 | if (hdr1->vma < hdr2->vma) |
| 1917 | return -1; |
| 1918 | else if (hdr1->vma > hdr2->vma) |
| 1919 | return 1; |
| 1920 | else |
| 1921 | return 0; |
| 1922 | } |
| 1923 | |
| 1924 | /* Calculate the file position for each section, and set |
| 1925 | reloc_filepos. */ |
| 1926 | |
| 1927 | static bfd_boolean |
| 1928 | ecoff_compute_section_file_positions (bfd *abfd) |
| 1929 | { |
| 1930 | file_ptr sofar, file_sofar; |
| 1931 | asection **sorted_hdrs; |
| 1932 | asection *current; |
| 1933 | unsigned int i; |
| 1934 | file_ptr old_sofar; |
| 1935 | bfd_boolean rdata_in_text; |
| 1936 | bfd_boolean first_data, first_nonalloc; |
| 1937 | const bfd_vma round = ecoff_backend (abfd)->round; |
| 1938 | bfd_size_type amt; |
| 1939 | |
| 1940 | sofar = _bfd_ecoff_sizeof_headers (abfd, NULL); |
| 1941 | file_sofar = sofar; |
| 1942 | |
| 1943 | /* Sort the sections by VMA. */ |
| 1944 | amt = abfd->section_count; |
| 1945 | amt *= sizeof (asection *); |
| 1946 | sorted_hdrs = bfd_malloc (amt); |
| 1947 | if (sorted_hdrs == NULL) |
| 1948 | return FALSE; |
| 1949 | for (current = abfd->sections, i = 0; |
| 1950 | current != NULL; |
| 1951 | current = current->next, i++) |
| 1952 | sorted_hdrs[i] = current; |
| 1953 | BFD_ASSERT (i == abfd->section_count); |
| 1954 | |
| 1955 | qsort (sorted_hdrs, abfd->section_count, sizeof (asection *), |
| 1956 | ecoff_sort_hdrs); |
| 1957 | |
| 1958 | /* Some versions of the OSF linker put the .rdata section in the |
| 1959 | text segment, and some do not. */ |
| 1960 | rdata_in_text = ecoff_backend (abfd)->rdata_in_text; |
| 1961 | if (rdata_in_text) |
| 1962 | { |
| 1963 | for (i = 0; i < abfd->section_count; i++) |
| 1964 | { |
| 1965 | current = sorted_hdrs[i]; |
| 1966 | if (streq (current->name, _RDATA)) |
| 1967 | break; |
| 1968 | if ((current->flags & SEC_CODE) == 0 |
| 1969 | && ! streq (current->name, _PDATA) |
| 1970 | && ! streq (current->name, _RCONST)) |
| 1971 | { |
| 1972 | rdata_in_text = FALSE; |
| 1973 | break; |
| 1974 | } |
| 1975 | } |
| 1976 | } |
| 1977 | ecoff_data (abfd)->rdata_in_text = rdata_in_text; |
| 1978 | |
| 1979 | first_data = TRUE; |
| 1980 | first_nonalloc = TRUE; |
| 1981 | for (i = 0; i < abfd->section_count; i++) |
| 1982 | { |
| 1983 | unsigned int alignment_power; |
| 1984 | |
| 1985 | current = sorted_hdrs[i]; |
| 1986 | |
| 1987 | /* For the Alpha ECOFF .pdata section the lnnoptr field is |
| 1988 | supposed to indicate the number of .pdata entries that are |
| 1989 | really in the section. Each entry is 8 bytes. We store this |
| 1990 | away in line_filepos before increasing the section size. */ |
| 1991 | if (streq (current->name, _PDATA)) |
| 1992 | current->line_filepos = current->size / 8; |
| 1993 | |
| 1994 | alignment_power = current->alignment_power; |
| 1995 | |
| 1996 | /* On Ultrix, the data sections in an executable file must be |
| 1997 | aligned to a page boundary within the file. This does not |
| 1998 | affect the section size, though. FIXME: Does this work for |
| 1999 | other platforms? It requires some modification for the |
| 2000 | Alpha, because .rdata on the Alpha goes with the text, not |
| 2001 | the data. */ |
| 2002 | if ((abfd->flags & EXEC_P) != 0 |
| 2003 | && (abfd->flags & D_PAGED) != 0 |
| 2004 | && ! first_data |
| 2005 | && (current->flags & SEC_CODE) == 0 |
| 2006 | && (! rdata_in_text |
| 2007 | || ! streq (current->name, _RDATA)) |
| 2008 | && ! streq (current->name, _PDATA) |
| 2009 | && ! streq (current->name, _RCONST)) |
| 2010 | { |
| 2011 | sofar = (sofar + round - 1) &~ (round - 1); |
| 2012 | file_sofar = (file_sofar + round - 1) &~ (round - 1); |
| 2013 | first_data = FALSE; |
| 2014 | } |
| 2015 | else if (streq (current->name, _LIB)) |
| 2016 | { |
| 2017 | /* On Irix 4, the location of contents of the .lib section |
| 2018 | from a shared library section is also rounded up to a |
| 2019 | page boundary. */ |
| 2020 | |
| 2021 | sofar = (sofar + round - 1) &~ (round - 1); |
| 2022 | file_sofar = (file_sofar + round - 1) &~ (round - 1); |
| 2023 | } |
| 2024 | else if (first_nonalloc |
| 2025 | && (current->flags & SEC_ALLOC) == 0 |
| 2026 | && (abfd->flags & D_PAGED) != 0) |
| 2027 | { |
| 2028 | /* Skip up to the next page for an unallocated section, such |
| 2029 | as the .comment section on the Alpha. This leaves room |
| 2030 | for the .bss section. */ |
| 2031 | first_nonalloc = FALSE; |
| 2032 | sofar = (sofar + round - 1) &~ (round - 1); |
| 2033 | file_sofar = (file_sofar + round - 1) &~ (round - 1); |
| 2034 | } |
| 2035 | |
| 2036 | /* Align the sections in the file to the same boundary on |
| 2037 | which they are aligned in virtual memory. */ |
| 2038 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); |
| 2039 | if ((current->flags & SEC_HAS_CONTENTS) != 0) |
| 2040 | file_sofar = BFD_ALIGN (file_sofar, 1 << alignment_power); |
| 2041 | |
| 2042 | if ((abfd->flags & D_PAGED) != 0 |
| 2043 | && (current->flags & SEC_ALLOC) != 0) |
| 2044 | { |
| 2045 | sofar += (current->vma - sofar) % round; |
| 2046 | if ((current->flags & SEC_HAS_CONTENTS) != 0) |
| 2047 | file_sofar += (current->vma - file_sofar) % round; |
| 2048 | } |
| 2049 | |
| 2050 | if ((current->flags & (SEC_HAS_CONTENTS | SEC_LOAD)) != 0) |
| 2051 | current->filepos = file_sofar; |
| 2052 | |
| 2053 | sofar += current->size; |
| 2054 | if ((current->flags & SEC_HAS_CONTENTS) != 0) |
| 2055 | file_sofar += current->size; |
| 2056 | |
| 2057 | /* Make sure that this section is of the right size too. */ |
| 2058 | old_sofar = sofar; |
| 2059 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); |
| 2060 | if ((current->flags & SEC_HAS_CONTENTS) != 0) |
| 2061 | file_sofar = BFD_ALIGN (file_sofar, 1 << alignment_power); |
| 2062 | current->size += sofar - old_sofar; |
| 2063 | } |
| 2064 | |
| 2065 | free (sorted_hdrs); |
| 2066 | sorted_hdrs = NULL; |
| 2067 | |
| 2068 | ecoff_data (abfd)->reloc_filepos = file_sofar; |
| 2069 | |
| 2070 | return TRUE; |
| 2071 | } |
| 2072 | |
| 2073 | /* Determine the location of the relocs for all the sections in the |
| 2074 | output file, as well as the location of the symbolic debugging |
| 2075 | information. */ |
| 2076 | |
| 2077 | static bfd_size_type |
| 2078 | ecoff_compute_reloc_file_positions (bfd *abfd) |
| 2079 | { |
| 2080 | const bfd_size_type external_reloc_size = |
| 2081 | ecoff_backend (abfd)->external_reloc_size; |
| 2082 | file_ptr reloc_base; |
| 2083 | bfd_size_type reloc_size; |
| 2084 | asection *current; |
| 2085 | file_ptr sym_base; |
| 2086 | |
| 2087 | if (! abfd->output_has_begun) |
| 2088 | { |
| 2089 | if (! ecoff_compute_section_file_positions (abfd)) |
| 2090 | abort (); |
| 2091 | abfd->output_has_begun = TRUE; |
| 2092 | } |
| 2093 | |
| 2094 | reloc_base = ecoff_data (abfd)->reloc_filepos; |
| 2095 | |
| 2096 | reloc_size = 0; |
| 2097 | for (current = abfd->sections; |
| 2098 | current != NULL; |
| 2099 | current = current->next) |
| 2100 | { |
| 2101 | if (current->reloc_count == 0) |
| 2102 | current->rel_filepos = 0; |
| 2103 | else |
| 2104 | { |
| 2105 | bfd_size_type relsize; |
| 2106 | |
| 2107 | current->rel_filepos = reloc_base; |
| 2108 | relsize = current->reloc_count * external_reloc_size; |
| 2109 | reloc_size += relsize; |
| 2110 | reloc_base += relsize; |
| 2111 | } |
| 2112 | } |
| 2113 | |
| 2114 | sym_base = ecoff_data (abfd)->reloc_filepos + reloc_size; |
| 2115 | |
| 2116 | /* At least on Ultrix, the symbol table of an executable file must |
| 2117 | be aligned to a page boundary. FIXME: Is this true on other |
| 2118 | platforms? */ |
| 2119 | if ((abfd->flags & EXEC_P) != 0 |
| 2120 | && (abfd->flags & D_PAGED) != 0) |
| 2121 | sym_base = ((sym_base + ecoff_backend (abfd)->round - 1) |
| 2122 | &~ (ecoff_backend (abfd)->round - 1)); |
| 2123 | |
| 2124 | ecoff_data (abfd)->sym_filepos = sym_base; |
| 2125 | |
| 2126 | return reloc_size; |
| 2127 | } |
| 2128 | |
| 2129 | /* Set the contents of a section. */ |
| 2130 | |
| 2131 | bfd_boolean |
| 2132 | _bfd_ecoff_set_section_contents (bfd *abfd, |
| 2133 | asection *section, |
| 2134 | const void * location, |
| 2135 | file_ptr offset, |
| 2136 | bfd_size_type count) |
| 2137 | { |
| 2138 | file_ptr pos; |
| 2139 | |
| 2140 | /* This must be done first, because bfd_set_section_contents is |
| 2141 | going to set output_has_begun to TRUE. */ |
| 2142 | if (! abfd->output_has_begun |
| 2143 | && ! ecoff_compute_section_file_positions (abfd)) |
| 2144 | return FALSE; |
| 2145 | |
| 2146 | /* Handle the .lib section specially so that Irix 4 shared libraries |
| 2147 | work out. See coff_set_section_contents in coffcode.h. */ |
| 2148 | if (streq (section->name, _LIB)) |
| 2149 | { |
| 2150 | bfd_byte *rec, *recend; |
| 2151 | |
| 2152 | rec = (bfd_byte *) location; |
| 2153 | recend = rec + count; |
| 2154 | while (rec < recend) |
| 2155 | { |
| 2156 | ++section->lma; |
| 2157 | rec += bfd_get_32 (abfd, rec) * 4; |
| 2158 | } |
| 2159 | |
| 2160 | BFD_ASSERT (rec == recend); |
| 2161 | } |
| 2162 | |
| 2163 | if (count == 0) |
| 2164 | return TRUE; |
| 2165 | |
| 2166 | pos = section->filepos + offset; |
| 2167 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 |
| 2168 | || bfd_bwrite (location, count, abfd) != count) |
| 2169 | return FALSE; |
| 2170 | |
| 2171 | return TRUE; |
| 2172 | } |
| 2173 | |
| 2174 | /* Get the GP value for an ECOFF file. This is a hook used by |
| 2175 | nlmconv. */ |
| 2176 | |
| 2177 | bfd_vma |
| 2178 | bfd_ecoff_get_gp_value (bfd *abfd) |
| 2179 | { |
| 2180 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour |
| 2181 | || bfd_get_format (abfd) != bfd_object) |
| 2182 | { |
| 2183 | bfd_set_error (bfd_error_invalid_operation); |
| 2184 | return 0; |
| 2185 | } |
| 2186 | |
| 2187 | return ecoff_data (abfd)->gp; |
| 2188 | } |
| 2189 | |
| 2190 | /* Set the GP value for an ECOFF file. This is a hook used by the |
| 2191 | assembler. */ |
| 2192 | |
| 2193 | bfd_boolean |
| 2194 | bfd_ecoff_set_gp_value (bfd *abfd, bfd_vma gp_value) |
| 2195 | { |
| 2196 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour |
| 2197 | || bfd_get_format (abfd) != bfd_object) |
| 2198 | { |
| 2199 | bfd_set_error (bfd_error_invalid_operation); |
| 2200 | return FALSE; |
| 2201 | } |
| 2202 | |
| 2203 | ecoff_data (abfd)->gp = gp_value; |
| 2204 | |
| 2205 | return TRUE; |
| 2206 | } |
| 2207 | |
| 2208 | /* Set the register masks for an ECOFF file. This is a hook used by |
| 2209 | the assembler. */ |
| 2210 | |
| 2211 | bfd_boolean |
| 2212 | bfd_ecoff_set_regmasks (bfd *abfd, |
| 2213 | unsigned long gprmask, |
| 2214 | unsigned long fprmask, |
| 2215 | unsigned long *cprmask) |
| 2216 | { |
| 2217 | ecoff_data_type *tdata; |
| 2218 | |
| 2219 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour |
| 2220 | || bfd_get_format (abfd) != bfd_object) |
| 2221 | { |
| 2222 | bfd_set_error (bfd_error_invalid_operation); |
| 2223 | return FALSE; |
| 2224 | } |
| 2225 | |
| 2226 | tdata = ecoff_data (abfd); |
| 2227 | tdata->gprmask = gprmask; |
| 2228 | tdata->fprmask = fprmask; |
| 2229 | if (cprmask != NULL) |
| 2230 | { |
| 2231 | int i; |
| 2232 | |
| 2233 | for (i = 0; i < 3; i++) |
| 2234 | tdata->cprmask[i] = cprmask[i]; |
| 2235 | } |
| 2236 | |
| 2237 | return TRUE; |
| 2238 | } |
| 2239 | |
| 2240 | /* Get ECOFF EXTR information for an external symbol. This function |
| 2241 | is passed to bfd_ecoff_debug_externals. */ |
| 2242 | |
| 2243 | static bfd_boolean |
| 2244 | ecoff_get_extr (asymbol *sym, EXTR *esym) |
| 2245 | { |
| 2246 | ecoff_symbol_type *ecoff_sym_ptr; |
| 2247 | bfd *input_bfd; |
| 2248 | |
| 2249 | if (bfd_asymbol_flavour (sym) != bfd_target_ecoff_flavour |
| 2250 | || ecoffsymbol (sym)->native == NULL) |
| 2251 | { |
| 2252 | /* Don't include debugging, local, or section symbols. */ |
| 2253 | if ((sym->flags & BSF_DEBUGGING) != 0 |
| 2254 | || (sym->flags & BSF_LOCAL) != 0 |
| 2255 | || (sym->flags & BSF_SECTION_SYM) != 0) |
| 2256 | return FALSE; |
| 2257 | |
| 2258 | esym->jmptbl = 0; |
| 2259 | esym->cobol_main = 0; |
| 2260 | esym->weakext = (sym->flags & BSF_WEAK) != 0; |
| 2261 | esym->reserved = 0; |
| 2262 | esym->ifd = ifdNil; |
| 2263 | /* FIXME: we can do better than this for st and sc. */ |
| 2264 | esym->asym.st = stGlobal; |
| 2265 | esym->asym.sc = scAbs; |
| 2266 | esym->asym.reserved = 0; |
| 2267 | esym->asym.index = indexNil; |
| 2268 | return TRUE; |
| 2269 | } |
| 2270 | |
| 2271 | ecoff_sym_ptr = ecoffsymbol (sym); |
| 2272 | |
| 2273 | if (ecoff_sym_ptr->local) |
| 2274 | return FALSE; |
| 2275 | |
| 2276 | input_bfd = bfd_asymbol_bfd (sym); |
| 2277 | (*(ecoff_backend (input_bfd)->debug_swap.swap_ext_in)) |
| 2278 | (input_bfd, ecoff_sym_ptr->native, esym); |
| 2279 | |
| 2280 | /* If the symbol was defined by the linker, then esym will be |
| 2281 | undefined but sym will not be. Get a better class for such a |
| 2282 | symbol. */ |
| 2283 | if ((esym->asym.sc == scUndefined |
| 2284 | || esym->asym.sc == scSUndefined) |
| 2285 | && ! bfd_is_und_section (bfd_get_section (sym))) |
| 2286 | esym->asym.sc = scAbs; |
| 2287 | |
| 2288 | /* Adjust the FDR index for the symbol by that used for the input |
| 2289 | BFD. */ |
| 2290 | if (esym->ifd != -1) |
| 2291 | { |
| 2292 | struct ecoff_debug_info *input_debug; |
| 2293 | |
| 2294 | input_debug = &ecoff_data (input_bfd)->debug_info; |
| 2295 | BFD_ASSERT (esym->ifd < input_debug->symbolic_header.ifdMax); |
| 2296 | if (input_debug->ifdmap != NULL) |
| 2297 | esym->ifd = input_debug->ifdmap[esym->ifd]; |
| 2298 | } |
| 2299 | |
| 2300 | return TRUE; |
| 2301 | } |
| 2302 | |
| 2303 | /* Set the external symbol index. This routine is passed to |
| 2304 | bfd_ecoff_debug_externals. */ |
| 2305 | |
| 2306 | static void |
| 2307 | ecoff_set_index (asymbol *sym, bfd_size_type indx) |
| 2308 | { |
| 2309 | ecoff_set_sym_index (sym, indx); |
| 2310 | } |
| 2311 | |
| 2312 | /* Write out an ECOFF file. */ |
| 2313 | |
| 2314 | bfd_boolean |
| 2315 | _bfd_ecoff_write_object_contents (bfd *abfd) |
| 2316 | { |
| 2317 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 2318 | const bfd_vma round = backend->round; |
| 2319 | const bfd_size_type filhsz = bfd_coff_filhsz (abfd); |
| 2320 | const bfd_size_type aoutsz = bfd_coff_aoutsz (abfd); |
| 2321 | const bfd_size_type scnhsz = bfd_coff_scnhsz (abfd); |
| 2322 | const bfd_size_type external_hdr_size |
| 2323 | = backend->debug_swap.external_hdr_size; |
| 2324 | const bfd_size_type external_reloc_size = backend->external_reloc_size; |
| 2325 | void (* const adjust_reloc_out) (bfd *, const arelent *, struct internal_reloc *) |
| 2326 | = backend->adjust_reloc_out; |
| 2327 | void (* const swap_reloc_out) (bfd *, const struct internal_reloc *, void *) |
| 2328 | = backend->swap_reloc_out; |
| 2329 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; |
| 2330 | HDRR * const symhdr = &debug->symbolic_header; |
| 2331 | asection *current; |
| 2332 | unsigned int count; |
| 2333 | bfd_size_type reloc_size; |
| 2334 | bfd_size_type text_size; |
| 2335 | bfd_vma text_start; |
| 2336 | bfd_boolean set_text_start; |
| 2337 | bfd_size_type data_size; |
| 2338 | bfd_vma data_start; |
| 2339 | bfd_boolean set_data_start; |
| 2340 | bfd_size_type bss_size; |
| 2341 | void * buff = NULL; |
| 2342 | void * reloc_buff = NULL; |
| 2343 | struct internal_filehdr internal_f; |
| 2344 | struct internal_aouthdr internal_a; |
| 2345 | int i; |
| 2346 | |
| 2347 | /* Determine where the sections and relocs will go in the output |
| 2348 | file. */ |
| 2349 | reloc_size = ecoff_compute_reloc_file_positions (abfd); |
| 2350 | |
| 2351 | count = 1; |
| 2352 | for (current = abfd->sections; |
| 2353 | current != NULL; |
| 2354 | current = current->next) |
| 2355 | { |
| 2356 | current->target_index = count; |
| 2357 | ++count; |
| 2358 | } |
| 2359 | |
| 2360 | if ((abfd->flags & D_PAGED) != 0) |
| 2361 | text_size = _bfd_ecoff_sizeof_headers (abfd, NULL); |
| 2362 | else |
| 2363 | text_size = 0; |
| 2364 | text_start = 0; |
| 2365 | set_text_start = FALSE; |
| 2366 | data_size = 0; |
| 2367 | data_start = 0; |
| 2368 | set_data_start = FALSE; |
| 2369 | bss_size = 0; |
| 2370 | |
| 2371 | /* Write section headers to the file. */ |
| 2372 | |
| 2373 | /* Allocate buff big enough to hold a section header, |
| 2374 | file header, or a.out header. */ |
| 2375 | { |
| 2376 | bfd_size_type siz; |
| 2377 | |
| 2378 | siz = scnhsz; |
| 2379 | if (siz < filhsz) |
| 2380 | siz = filhsz; |
| 2381 | if (siz < aoutsz) |
| 2382 | siz = aoutsz; |
| 2383 | buff = bfd_malloc (siz); |
| 2384 | if (buff == NULL) |
| 2385 | goto error_return; |
| 2386 | } |
| 2387 | |
| 2388 | internal_f.f_nscns = 0; |
| 2389 | if (bfd_seek (abfd, (file_ptr) (filhsz + aoutsz), SEEK_SET) != 0) |
| 2390 | goto error_return; |
| 2391 | |
| 2392 | for (current = abfd->sections; |
| 2393 | current != NULL; |
| 2394 | current = current->next) |
| 2395 | { |
| 2396 | struct internal_scnhdr section; |
| 2397 | bfd_vma vma; |
| 2398 | |
| 2399 | ++internal_f.f_nscns; |
| 2400 | |
| 2401 | strncpy (section.s_name, current->name, sizeof section.s_name); |
| 2402 | |
| 2403 | /* This seems to be correct for Irix 4 shared libraries. */ |
| 2404 | vma = bfd_get_section_vma (abfd, current); |
| 2405 | if (streq (current->name, _LIB)) |
| 2406 | section.s_vaddr = 0; |
| 2407 | else |
| 2408 | section.s_vaddr = vma; |
| 2409 | |
| 2410 | section.s_paddr = current->lma; |
| 2411 | section.s_size = current->size; |
| 2412 | |
| 2413 | /* If this section is unloadable then the scnptr will be 0. */ |
| 2414 | if ((current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
| 2415 | section.s_scnptr = 0; |
| 2416 | else |
| 2417 | section.s_scnptr = current->filepos; |
| 2418 | section.s_relptr = current->rel_filepos; |
| 2419 | |
| 2420 | /* FIXME: the lnnoptr of the .sbss or .sdata section of an |
| 2421 | object file produced by the assembler is supposed to point to |
| 2422 | information about how much room is required by objects of |
| 2423 | various different sizes. I think this only matters if we |
| 2424 | want the linker to compute the best size to use, or |
| 2425 | something. I don't know what happens if the information is |
| 2426 | not present. */ |
| 2427 | if (! streq (current->name, _PDATA)) |
| 2428 | section.s_lnnoptr = 0; |
| 2429 | else |
| 2430 | { |
| 2431 | /* The Alpha ECOFF .pdata section uses the lnnoptr field to |
| 2432 | hold the number of entries in the section (each entry is |
| 2433 | 8 bytes). We stored this in the line_filepos field in |
| 2434 | ecoff_compute_section_file_positions. */ |
| 2435 | section.s_lnnoptr = current->line_filepos; |
| 2436 | } |
| 2437 | |
| 2438 | section.s_nreloc = current->reloc_count; |
| 2439 | section.s_nlnno = 0; |
| 2440 | section.s_flags = ecoff_sec_to_styp_flags (current->name, |
| 2441 | current->flags); |
| 2442 | |
| 2443 | if (bfd_coff_swap_scnhdr_out (abfd, (void *) §ion, buff) == 0 |
| 2444 | || bfd_bwrite (buff, scnhsz, abfd) != scnhsz) |
| 2445 | goto error_return; |
| 2446 | |
| 2447 | if ((section.s_flags & STYP_TEXT) != 0 |
| 2448 | || ((section.s_flags & STYP_RDATA) != 0 |
| 2449 | && ecoff_data (abfd)->rdata_in_text) |
| 2450 | || section.s_flags == STYP_PDATA |
| 2451 | || (section.s_flags & STYP_DYNAMIC) != 0 |
| 2452 | || (section.s_flags & STYP_LIBLIST) != 0 |
| 2453 | || (section.s_flags & STYP_RELDYN) != 0 |
| 2454 | || section.s_flags == STYP_CONFLIC |
| 2455 | || (section.s_flags & STYP_DYNSTR) != 0 |
| 2456 | || (section.s_flags & STYP_DYNSYM) != 0 |
| 2457 | || (section.s_flags & STYP_HASH) != 0 |
| 2458 | || (section.s_flags & STYP_ECOFF_INIT) != 0 |
| 2459 | || (section.s_flags & STYP_ECOFF_FINI) != 0 |
| 2460 | || section.s_flags == STYP_RCONST) |
| 2461 | { |
| 2462 | text_size += current->size; |
| 2463 | if (! set_text_start || text_start > vma) |
| 2464 | { |
| 2465 | text_start = vma; |
| 2466 | set_text_start = TRUE; |
| 2467 | } |
| 2468 | } |
| 2469 | else if ((section.s_flags & STYP_RDATA) != 0 |
| 2470 | || (section.s_flags & STYP_DATA) != 0 |
| 2471 | || (section.s_flags & STYP_LITA) != 0 |
| 2472 | || (section.s_flags & STYP_LIT8) != 0 |
| 2473 | || (section.s_flags & STYP_LIT4) != 0 |
| 2474 | || (section.s_flags & STYP_SDATA) != 0 |
| 2475 | || section.s_flags == STYP_XDATA |
| 2476 | || (section.s_flags & STYP_GOT) != 0) |
| 2477 | { |
| 2478 | data_size += current->size; |
| 2479 | if (! set_data_start || data_start > vma) |
| 2480 | { |
| 2481 | data_start = vma; |
| 2482 | set_data_start = TRUE; |
| 2483 | } |
| 2484 | } |
| 2485 | else if ((section.s_flags & STYP_BSS) != 0 |
| 2486 | || (section.s_flags & STYP_SBSS) != 0) |
| 2487 | bss_size += current->size; |
| 2488 | else if (section.s_flags == 0 |
| 2489 | || (section.s_flags & STYP_ECOFF_LIB) != 0 |
| 2490 | || section.s_flags == STYP_COMMENT) |
| 2491 | /* Do nothing. */ ; |
| 2492 | else |
| 2493 | abort (); |
| 2494 | } |
| 2495 | |
| 2496 | /* Set up the file header. */ |
| 2497 | internal_f.f_magic = ecoff_get_magic (abfd); |
| 2498 | |
| 2499 | /* We will NOT put a fucking timestamp in the header here. Every |
| 2500 | time you put it back, I will come in and take it out again. I'm |
| 2501 | sorry. This field does not belong here. We fill it with a 0 so |
| 2502 | it compares the same but is not a reasonable time. -- |
| 2503 | gnu@cygnus.com. */ |
| 2504 | internal_f.f_timdat = 0; |
| 2505 | |
| 2506 | if (bfd_get_symcount (abfd) != 0) |
| 2507 | { |
| 2508 | /* The ECOFF f_nsyms field is not actually the number of |
| 2509 | symbols, it's the size of symbolic information header. */ |
| 2510 | internal_f.f_nsyms = external_hdr_size; |
| 2511 | internal_f.f_symptr = ecoff_data (abfd)->sym_filepos; |
| 2512 | } |
| 2513 | else |
| 2514 | { |
| 2515 | internal_f.f_nsyms = 0; |
| 2516 | internal_f.f_symptr = 0; |
| 2517 | } |
| 2518 | |
| 2519 | internal_f.f_opthdr = aoutsz; |
| 2520 | |
| 2521 | internal_f.f_flags = F_LNNO; |
| 2522 | if (reloc_size == 0) |
| 2523 | internal_f.f_flags |= F_RELFLG; |
| 2524 | if (bfd_get_symcount (abfd) == 0) |
| 2525 | internal_f.f_flags |= F_LSYMS; |
| 2526 | if (abfd->flags & EXEC_P) |
| 2527 | internal_f.f_flags |= F_EXEC; |
| 2528 | |
| 2529 | if (bfd_little_endian (abfd)) |
| 2530 | internal_f.f_flags |= F_AR32WR; |
| 2531 | else |
| 2532 | internal_f.f_flags |= F_AR32W; |
| 2533 | |
| 2534 | /* Set up the ``optional'' header. */ |
| 2535 | if ((abfd->flags & D_PAGED) != 0) |
| 2536 | internal_a.magic = ECOFF_AOUT_ZMAGIC; |
| 2537 | else |
| 2538 | internal_a.magic = ECOFF_AOUT_OMAGIC; |
| 2539 | |
| 2540 | /* FIXME: Is this really correct? */ |
| 2541 | internal_a.vstamp = symhdr->vstamp; |
| 2542 | |
| 2543 | /* At least on Ultrix, these have to be rounded to page boundaries. |
| 2544 | FIXME: Is this true on other platforms? */ |
| 2545 | if ((abfd->flags & D_PAGED) != 0) |
| 2546 | { |
| 2547 | internal_a.tsize = (text_size + round - 1) &~ (round - 1); |
| 2548 | internal_a.text_start = text_start &~ (round - 1); |
| 2549 | internal_a.dsize = (data_size + round - 1) &~ (round - 1); |
| 2550 | internal_a.data_start = data_start &~ (round - 1); |
| 2551 | } |
| 2552 | else |
| 2553 | { |
| 2554 | internal_a.tsize = text_size; |
| 2555 | internal_a.text_start = text_start; |
| 2556 | internal_a.dsize = data_size; |
| 2557 | internal_a.data_start = data_start; |
| 2558 | } |
| 2559 | |
| 2560 | /* On Ultrix, the initial portions of the .sbss and .bss segments |
| 2561 | are at the end of the data section. The bsize field in the |
| 2562 | optional header records how many bss bytes are required beyond |
| 2563 | those in the data section. The value is not rounded to a page |
| 2564 | boundary. */ |
| 2565 | if (bss_size < internal_a.dsize - data_size) |
| 2566 | bss_size = 0; |
| 2567 | else |
| 2568 | bss_size -= internal_a.dsize - data_size; |
| 2569 | internal_a.bsize = bss_size; |
| 2570 | internal_a.bss_start = internal_a.data_start + internal_a.dsize; |
| 2571 | |
| 2572 | internal_a.entry = bfd_get_start_address (abfd); |
| 2573 | |
| 2574 | internal_a.gp_value = ecoff_data (abfd)->gp; |
| 2575 | |
| 2576 | internal_a.gprmask = ecoff_data (abfd)->gprmask; |
| 2577 | internal_a.fprmask = ecoff_data (abfd)->fprmask; |
| 2578 | for (i = 0; i < 4; i++) |
| 2579 | internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i]; |
| 2580 | |
| 2581 | /* Let the backend adjust the headers if necessary. */ |
| 2582 | if (backend->adjust_headers) |
| 2583 | { |
| 2584 | if (! (*backend->adjust_headers) (abfd, &internal_f, &internal_a)) |
| 2585 | goto error_return; |
| 2586 | } |
| 2587 | |
| 2588 | /* Write out the file header and the optional header. */ |
| 2589 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
| 2590 | goto error_return; |
| 2591 | |
| 2592 | bfd_coff_swap_filehdr_out (abfd, (void *) &internal_f, buff); |
| 2593 | if (bfd_bwrite (buff, filhsz, abfd) != filhsz) |
| 2594 | goto error_return; |
| 2595 | |
| 2596 | bfd_coff_swap_aouthdr_out (abfd, (void *) &internal_a, buff); |
| 2597 | if (bfd_bwrite (buff, aoutsz, abfd) != aoutsz) |
| 2598 | goto error_return; |
| 2599 | |
| 2600 | /* Build the external symbol information. This must be done before |
| 2601 | writing out the relocs so that we know the symbol indices. We |
| 2602 | don't do this if this BFD was created by the backend linker, |
| 2603 | since it will have already handled the symbols and relocs. */ |
| 2604 | if (! ecoff_data (abfd)->linker) |
| 2605 | { |
| 2606 | symhdr->iextMax = 0; |
| 2607 | symhdr->issExtMax = 0; |
| 2608 | debug->external_ext = debug->external_ext_end = NULL; |
| 2609 | debug->ssext = debug->ssext_end = NULL; |
| 2610 | if (! bfd_ecoff_debug_externals (abfd, debug, &backend->debug_swap, |
| 2611 | (abfd->flags & EXEC_P) == 0, |
| 2612 | ecoff_get_extr, ecoff_set_index)) |
| 2613 | goto error_return; |
| 2614 | |
| 2615 | /* Write out the relocs. */ |
| 2616 | for (current = abfd->sections; |
| 2617 | current != NULL; |
| 2618 | current = current->next) |
| 2619 | { |
| 2620 | arelent **reloc_ptr_ptr; |
| 2621 | arelent **reloc_end; |
| 2622 | char *out_ptr; |
| 2623 | bfd_size_type amt; |
| 2624 | |
| 2625 | if (current->reloc_count == 0) |
| 2626 | continue; |
| 2627 | |
| 2628 | amt = current->reloc_count * external_reloc_size; |
| 2629 | reloc_buff = bfd_alloc (abfd, amt); |
| 2630 | if (reloc_buff == NULL) |
| 2631 | goto error_return; |
| 2632 | |
| 2633 | reloc_ptr_ptr = current->orelocation; |
| 2634 | reloc_end = reloc_ptr_ptr + current->reloc_count; |
| 2635 | out_ptr = (char *) reloc_buff; |
| 2636 | |
| 2637 | for (; |
| 2638 | reloc_ptr_ptr < reloc_end; |
| 2639 | reloc_ptr_ptr++, out_ptr += external_reloc_size) |
| 2640 | { |
| 2641 | arelent *reloc; |
| 2642 | asymbol *sym; |
| 2643 | struct internal_reloc in; |
| 2644 | |
| 2645 | memset ((void *) &in, 0, sizeof in); |
| 2646 | |
| 2647 | reloc = *reloc_ptr_ptr; |
| 2648 | sym = *reloc->sym_ptr_ptr; |
| 2649 | |
| 2650 | /* If the howto field has not been initialised then skip this reloc. |
| 2651 | This assumes that an error message has been issued elsewhere. */ |
| 2652 | if (reloc->howto == NULL) |
| 2653 | continue; |
| 2654 | |
| 2655 | in.r_vaddr = (reloc->address |
| 2656 | + bfd_get_section_vma (abfd, current)); |
| 2657 | in.r_type = reloc->howto->type; |
| 2658 | |
| 2659 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
| 2660 | { |
| 2661 | in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr); |
| 2662 | in.r_extern = 1; |
| 2663 | } |
| 2664 | else |
| 2665 | { |
| 2666 | const char *name; |
| 2667 | unsigned int i; |
| 2668 | static struct |
| 2669 | { |
| 2670 | const char * name; |
| 2671 | long r_symndx; |
| 2672 | } |
| 2673 | section_symndx [] = |
| 2674 | { |
| 2675 | { _TEXT, RELOC_SECTION_TEXT }, |
| 2676 | { _RDATA, RELOC_SECTION_RDATA }, |
| 2677 | { _DATA, RELOC_SECTION_DATA }, |
| 2678 | { _SDATA, RELOC_SECTION_SDATA }, |
| 2679 | { _SBSS, RELOC_SECTION_SBSS }, |
| 2680 | { _BSS, RELOC_SECTION_BSS }, |
| 2681 | { _INIT, RELOC_SECTION_INIT }, |
| 2682 | { _LIT8, RELOC_SECTION_LIT8 }, |
| 2683 | { _LIT4, RELOC_SECTION_LIT4 }, |
| 2684 | { _XDATA, RELOC_SECTION_XDATA }, |
| 2685 | { _PDATA, RELOC_SECTION_PDATA }, |
| 2686 | { _FINI, RELOC_SECTION_FINI }, |
| 2687 | { _LITA, RELOC_SECTION_LITA }, |
| 2688 | { "*ABS*", RELOC_SECTION_ABS }, |
| 2689 | { _RCONST, RELOC_SECTION_RCONST } |
| 2690 | }; |
| 2691 | |
| 2692 | name = bfd_get_section_name (abfd, bfd_get_section (sym)); |
| 2693 | |
| 2694 | for (i = 0; i < ARRAY_SIZE (section_symndx); i++) |
| 2695 | if (streq (name, section_symndx[i].name)) |
| 2696 | { |
| 2697 | in.r_symndx = section_symndx[i].r_symndx; |
| 2698 | break; |
| 2699 | } |
| 2700 | |
| 2701 | if (i == ARRAY_SIZE (section_symndx)) |
| 2702 | abort (); |
| 2703 | in.r_extern = 0; |
| 2704 | } |
| 2705 | |
| 2706 | (*adjust_reloc_out) (abfd, reloc, &in); |
| 2707 | |
| 2708 | (*swap_reloc_out) (abfd, &in, (void *) out_ptr); |
| 2709 | } |
| 2710 | |
| 2711 | if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0) |
| 2712 | goto error_return; |
| 2713 | amt = current->reloc_count * external_reloc_size; |
| 2714 | if (bfd_bwrite (reloc_buff, amt, abfd) != amt) |
| 2715 | goto error_return; |
| 2716 | bfd_release (abfd, reloc_buff); |
| 2717 | reloc_buff = NULL; |
| 2718 | } |
| 2719 | |
| 2720 | /* Write out the symbolic debugging information. */ |
| 2721 | if (bfd_get_symcount (abfd) > 0) |
| 2722 | { |
| 2723 | /* Write out the debugging information. */ |
| 2724 | if (! bfd_ecoff_write_debug (abfd, debug, &backend->debug_swap, |
| 2725 | ecoff_data (abfd)->sym_filepos)) |
| 2726 | goto error_return; |
| 2727 | } |
| 2728 | } |
| 2729 | |
| 2730 | /* The .bss section of a demand paged executable must receive an |
| 2731 | entire page. If there are symbols, the symbols will start on the |
| 2732 | next page. If there are no symbols, we must fill out the page by |
| 2733 | hand. */ |
| 2734 | if (bfd_get_symcount (abfd) == 0 |
| 2735 | && (abfd->flags & EXEC_P) != 0 |
| 2736 | && (abfd->flags & D_PAGED) != 0) |
| 2737 | { |
| 2738 | char c; |
| 2739 | |
| 2740 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, |
| 2741 | SEEK_SET) != 0) |
| 2742 | goto error_return; |
| 2743 | if (bfd_bread (&c, (bfd_size_type) 1, abfd) == 0) |
| 2744 | c = 0; |
| 2745 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, |
| 2746 | SEEK_SET) != 0) |
| 2747 | goto error_return; |
| 2748 | if (bfd_bwrite (&c, (bfd_size_type) 1, abfd) != 1) |
| 2749 | goto error_return; |
| 2750 | } |
| 2751 | |
| 2752 | if (reloc_buff != NULL) |
| 2753 | bfd_release (abfd, reloc_buff); |
| 2754 | if (buff != NULL) |
| 2755 | free (buff); |
| 2756 | return TRUE; |
| 2757 | error_return: |
| 2758 | if (reloc_buff != NULL) |
| 2759 | bfd_release (abfd, reloc_buff); |
| 2760 | if (buff != NULL) |
| 2761 | free (buff); |
| 2762 | return FALSE; |
| 2763 | } |
| 2764 | \f |
| 2765 | /* Archive handling. ECOFF uses what appears to be a unique type of |
| 2766 | archive header (armap). The byte ordering of the armap and the |
| 2767 | contents are encoded in the name of the armap itself. At least for |
| 2768 | now, we only support archives with the same byte ordering in the |
| 2769 | armap and the contents. |
| 2770 | |
| 2771 | The first four bytes in the armap are the number of symbol |
| 2772 | definitions. This is always a power of two. |
| 2773 | |
| 2774 | This is followed by the symbol definitions. Each symbol definition |
| 2775 | occupies 8 bytes. The first four bytes are the offset from the |
| 2776 | start of the armap strings to the null-terminated string naming |
| 2777 | this symbol. The second four bytes are the file offset to the |
| 2778 | archive member which defines this symbol. If the second four bytes |
| 2779 | are 0, then this is not actually a symbol definition, and it should |
| 2780 | be ignored. |
| 2781 | |
| 2782 | The symbols are hashed into the armap with a closed hashing scheme. |
| 2783 | See the functions below for the details of the algorithm. |
| 2784 | |
| 2785 | After the symbol definitions comes four bytes holding the size of |
| 2786 | the string table, followed by the string table itself. */ |
| 2787 | |
| 2788 | /* The name of an archive headers looks like this: |
| 2789 | __________E[BL]E[BL]_ (with a trailing space). |
| 2790 | The trailing space is changed to an X if the archive is changed to |
| 2791 | indicate that the armap is out of date. |
| 2792 | |
| 2793 | The Alpha seems to use ________64E[BL]E[BL]_. */ |
| 2794 | |
| 2795 | #define ARMAP_BIG_ENDIAN 'B' |
| 2796 | #define ARMAP_LITTLE_ENDIAN 'L' |
| 2797 | #define ARMAP_MARKER 'E' |
| 2798 | #define ARMAP_START_LENGTH 10 |
| 2799 | #define ARMAP_HEADER_MARKER_INDEX 10 |
| 2800 | #define ARMAP_HEADER_ENDIAN_INDEX 11 |
| 2801 | #define ARMAP_OBJECT_MARKER_INDEX 12 |
| 2802 | #define ARMAP_OBJECT_ENDIAN_INDEX 13 |
| 2803 | #define ARMAP_END_INDEX 14 |
| 2804 | #define ARMAP_END "_ " |
| 2805 | |
| 2806 | /* This is a magic number used in the hashing algorithm. */ |
| 2807 | #define ARMAP_HASH_MAGIC 0x9dd68ab5 |
| 2808 | |
| 2809 | /* This returns the hash value to use for a string. It also sets |
| 2810 | *REHASH to the rehash adjustment if the first slot is taken. SIZE |
| 2811 | is the number of entries in the hash table, and HLOG is the log |
| 2812 | base 2 of SIZE. */ |
| 2813 | |
| 2814 | static unsigned int |
| 2815 | ecoff_armap_hash (const char *s, |
| 2816 | unsigned int *rehash, |
| 2817 | unsigned int size, |
| 2818 | unsigned int hlog) |
| 2819 | { |
| 2820 | unsigned int hash; |
| 2821 | |
| 2822 | if (hlog == 0) |
| 2823 | return 0; |
| 2824 | hash = *s++; |
| 2825 | while (*s != '\0') |
| 2826 | hash = ((hash >> 27) | (hash << 5)) + *s++; |
| 2827 | hash *= ARMAP_HASH_MAGIC; |
| 2828 | *rehash = (hash & (size - 1)) | 1; |
| 2829 | return hash >> (32 - hlog); |
| 2830 | } |
| 2831 | |
| 2832 | /* Read in the armap. */ |
| 2833 | |
| 2834 | bfd_boolean |
| 2835 | _bfd_ecoff_slurp_armap (bfd *abfd) |
| 2836 | { |
| 2837 | char nextname[17]; |
| 2838 | unsigned int i; |
| 2839 | struct areltdata *mapdata; |
| 2840 | bfd_size_type parsed_size; |
| 2841 | char *raw_armap; |
| 2842 | struct artdata *ardata; |
| 2843 | unsigned int count; |
| 2844 | char *raw_ptr; |
| 2845 | struct symdef *symdef_ptr; |
| 2846 | char *stringbase; |
| 2847 | bfd_size_type amt; |
| 2848 | |
| 2849 | /* Get the name of the first element. */ |
| 2850 | i = bfd_bread ((void *) nextname, (bfd_size_type) 16, abfd); |
| 2851 | if (i == 0) |
| 2852 | return TRUE; |
| 2853 | if (i != 16) |
| 2854 | return FALSE; |
| 2855 | |
| 2856 | if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0) |
| 2857 | return FALSE; |
| 2858 | |
| 2859 | /* Irix 4.0.5F apparently can use either an ECOFF armap or a |
| 2860 | standard COFF armap. We could move the ECOFF armap stuff into |
| 2861 | bfd_slurp_armap, but that seems inappropriate since no other |
| 2862 | target uses this format. Instead, we check directly for a COFF |
| 2863 | armap. */ |
| 2864 | if (CONST_STRNEQ (nextname, "/ ")) |
| 2865 | return bfd_slurp_armap (abfd); |
| 2866 | |
| 2867 | /* See if the first element is an armap. */ |
| 2868 | if (! strneq (nextname, ecoff_backend (abfd)->armap_start, ARMAP_START_LENGTH) |
| 2869 | || nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER |
| 2870 | || (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN |
| 2871 | && nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) |
| 2872 | || nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER |
| 2873 | || (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN |
| 2874 | && nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) |
| 2875 | || ! strneq (nextname + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1)) |
| 2876 | { |
| 2877 | bfd_has_map (abfd) = FALSE; |
| 2878 | return TRUE; |
| 2879 | } |
| 2880 | |
| 2881 | /* Make sure we have the right byte ordering. */ |
| 2882 | if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) |
| 2883 | ^ (bfd_header_big_endian (abfd))) |
| 2884 | || ((nextname[ARMAP_OBJECT_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) |
| 2885 | ^ (bfd_big_endian (abfd)))) |
| 2886 | { |
| 2887 | bfd_set_error (bfd_error_wrong_format); |
| 2888 | return FALSE; |
| 2889 | } |
| 2890 | |
| 2891 | /* Read in the armap. */ |
| 2892 | ardata = bfd_ardata (abfd); |
| 2893 | mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd); |
| 2894 | if (mapdata == NULL) |
| 2895 | return FALSE; |
| 2896 | parsed_size = mapdata->parsed_size; |
| 2897 | bfd_release (abfd, (void *) mapdata); |
| 2898 | |
| 2899 | raw_armap = bfd_alloc (abfd, parsed_size); |
| 2900 | if (raw_armap == NULL) |
| 2901 | return FALSE; |
| 2902 | |
| 2903 | if (bfd_bread ((void *) raw_armap, parsed_size, abfd) != parsed_size) |
| 2904 | { |
| 2905 | if (bfd_get_error () != bfd_error_system_call) |
| 2906 | bfd_set_error (bfd_error_malformed_archive); |
| 2907 | bfd_release (abfd, (void *) raw_armap); |
| 2908 | return FALSE; |
| 2909 | } |
| 2910 | |
| 2911 | ardata->tdata = (void *) raw_armap; |
| 2912 | |
| 2913 | count = H_GET_32 (abfd, raw_armap); |
| 2914 | |
| 2915 | ardata->symdef_count = 0; |
| 2916 | ardata->cache = NULL; |
| 2917 | |
| 2918 | /* This code used to overlay the symdefs over the raw archive data, |
| 2919 | but that doesn't work on a 64 bit host. */ |
| 2920 | stringbase = raw_armap + count * 8 + 8; |
| 2921 | |
| 2922 | #ifdef CHECK_ARMAP_HASH |
| 2923 | { |
| 2924 | unsigned int hlog; |
| 2925 | |
| 2926 | /* Double check that I have the hashing algorithm right by making |
| 2927 | sure that every symbol can be looked up successfully. */ |
| 2928 | hlog = 0; |
| 2929 | for (i = 1; i < count; i <<= 1) |
| 2930 | hlog++; |
| 2931 | BFD_ASSERT (i == count); |
| 2932 | |
| 2933 | raw_ptr = raw_armap + 4; |
| 2934 | for (i = 0; i < count; i++, raw_ptr += 8) |
| 2935 | { |
| 2936 | unsigned int name_offset, file_offset; |
| 2937 | unsigned int hash, rehash, srch; |
| 2938 | |
| 2939 | name_offset = H_GET_32 (abfd, raw_ptr); |
| 2940 | file_offset = H_GET_32 (abfd, (raw_ptr + 4)); |
| 2941 | if (file_offset == 0) |
| 2942 | continue; |
| 2943 | hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count, |
| 2944 | hlog); |
| 2945 | if (hash == i) |
| 2946 | continue; |
| 2947 | |
| 2948 | /* See if we can rehash to this location. */ |
| 2949 | for (srch = (hash + rehash) & (count - 1); |
| 2950 | srch != hash && srch != i; |
| 2951 | srch = (srch + rehash) & (count - 1)) |
| 2952 | BFD_ASSERT (H_GET_32 (abfd, (raw_armap + 8 + srch * 8)) != 0); |
| 2953 | BFD_ASSERT (srch == i); |
| 2954 | } |
| 2955 | } |
| 2956 | |
| 2957 | #endif /* CHECK_ARMAP_HASH */ |
| 2958 | |
| 2959 | raw_ptr = raw_armap + 4; |
| 2960 | for (i = 0; i < count; i++, raw_ptr += 8) |
| 2961 | if (H_GET_32 (abfd, (raw_ptr + 4)) != 0) |
| 2962 | ++ardata->symdef_count; |
| 2963 | |
| 2964 | amt = ardata->symdef_count; |
| 2965 | amt *= sizeof (struct symdef); |
| 2966 | symdef_ptr = bfd_alloc (abfd, amt); |
| 2967 | if (!symdef_ptr) |
| 2968 | return FALSE; |
| 2969 | |
| 2970 | ardata->symdefs = (carsym *) symdef_ptr; |
| 2971 | |
| 2972 | raw_ptr = raw_armap + 4; |
| 2973 | for (i = 0; i < count; i++, raw_ptr += 8) |
| 2974 | { |
| 2975 | unsigned int name_offset, file_offset; |
| 2976 | |
| 2977 | file_offset = H_GET_32 (abfd, (raw_ptr + 4)); |
| 2978 | if (file_offset == 0) |
| 2979 | continue; |
| 2980 | name_offset = H_GET_32 (abfd, raw_ptr); |
| 2981 | symdef_ptr->s.name = stringbase + name_offset; |
| 2982 | symdef_ptr->file_offset = file_offset; |
| 2983 | ++symdef_ptr; |
| 2984 | } |
| 2985 | |
| 2986 | ardata->first_file_filepos = bfd_tell (abfd); |
| 2987 | /* Pad to an even boundary. */ |
| 2988 | ardata->first_file_filepos += ardata->first_file_filepos % 2; |
| 2989 | |
| 2990 | bfd_has_map (abfd) = TRUE; |
| 2991 | |
| 2992 | return TRUE; |
| 2993 | } |
| 2994 | |
| 2995 | /* Write out an armap. */ |
| 2996 | |
| 2997 | bfd_boolean |
| 2998 | _bfd_ecoff_write_armap (bfd *abfd, |
| 2999 | unsigned int elength, |
| 3000 | struct orl *map, |
| 3001 | unsigned int orl_count, |
| 3002 | int stridx) |
| 3003 | { |
| 3004 | unsigned int hashsize, hashlog; |
| 3005 | bfd_size_type symdefsize; |
| 3006 | int padit; |
| 3007 | unsigned int stringsize; |
| 3008 | unsigned int mapsize; |
| 3009 | file_ptr firstreal; |
| 3010 | struct ar_hdr hdr; |
| 3011 | struct stat statbuf; |
| 3012 | unsigned int i; |
| 3013 | bfd_byte temp[4]; |
| 3014 | bfd_byte *hashtable; |
| 3015 | bfd *current; |
| 3016 | bfd *last_elt; |
| 3017 | |
| 3018 | /* Ultrix appears to use as a hash table size the least power of two |
| 3019 | greater than twice the number of entries. */ |
| 3020 | for (hashlog = 0; ((unsigned int) 1 << hashlog) <= 2 * orl_count; hashlog++) |
| 3021 | ; |
| 3022 | hashsize = 1 << hashlog; |
| 3023 | |
| 3024 | symdefsize = hashsize * 8; |
| 3025 | padit = stridx % 2; |
| 3026 | stringsize = stridx + padit; |
| 3027 | |
| 3028 | /* Include 8 bytes to store symdefsize and stringsize in output. */ |
| 3029 | mapsize = symdefsize + stringsize + 8; |
| 3030 | |
| 3031 | firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength; |
| 3032 | |
| 3033 | memset ((void *) &hdr, 0, sizeof hdr); |
| 3034 | |
| 3035 | /* Work out the ECOFF armap name. */ |
| 3036 | strcpy (hdr.ar_name, ecoff_backend (abfd)->armap_start); |
| 3037 | hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER; |
| 3038 | hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] = |
| 3039 | (bfd_header_big_endian (abfd) |
| 3040 | ? ARMAP_BIG_ENDIAN |
| 3041 | : ARMAP_LITTLE_ENDIAN); |
| 3042 | hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER; |
| 3043 | hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] = |
| 3044 | bfd_big_endian (abfd) ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN; |
| 3045 | memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1); |
| 3046 | |
| 3047 | /* Write the timestamp of the archive header to be just a little bit |
| 3048 | later than the timestamp of the file, otherwise the linker will |
| 3049 | complain that the index is out of date. Actually, the Ultrix |
| 3050 | linker just checks the archive name; the GNU linker may check the |
| 3051 | date. */ |
| 3052 | stat (abfd->filename, &statbuf); |
| 3053 | sprintf (hdr.ar_date, "%ld", (long) (statbuf.st_mtime + 60)); |
| 3054 | |
| 3055 | /* The DECstation uses zeroes for the uid, gid and mode of the |
| 3056 | armap. */ |
| 3057 | hdr.ar_uid[0] = '0'; |
| 3058 | hdr.ar_gid[0] = '0'; |
| 3059 | /* Building gcc ends up extracting the armap as a file - twice. */ |
| 3060 | hdr.ar_mode[0] = '6'; |
| 3061 | hdr.ar_mode[1] = '4'; |
| 3062 | hdr.ar_mode[2] = '4'; |
| 3063 | |
| 3064 | sprintf (hdr.ar_size, "%-10d", (int) mapsize); |
| 3065 | |
| 3066 | hdr.ar_fmag[0] = '`'; |
| 3067 | hdr.ar_fmag[1] = '\012'; |
| 3068 | |
| 3069 | /* Turn all null bytes in the header into spaces. */ |
| 3070 | for (i = 0; i < sizeof (struct ar_hdr); i++) |
| 3071 | if (((char *) (&hdr))[i] == '\0') |
| 3072 | (((char *) (&hdr))[i]) = ' '; |
| 3073 | |
| 3074 | if (bfd_bwrite ((void *) &hdr, (bfd_size_type) sizeof (struct ar_hdr), abfd) |
| 3075 | != sizeof (struct ar_hdr)) |
| 3076 | return FALSE; |
| 3077 | |
| 3078 | H_PUT_32 (abfd, hashsize, temp); |
| 3079 | if (bfd_bwrite ((void *) temp, (bfd_size_type) 4, abfd) != 4) |
| 3080 | return FALSE; |
| 3081 | |
| 3082 | hashtable = bfd_zalloc (abfd, symdefsize); |
| 3083 | if (!hashtable) |
| 3084 | return FALSE; |
| 3085 | |
| 3086 | current = abfd->archive_head; |
| 3087 | last_elt = current; |
| 3088 | for (i = 0; i < orl_count; i++) |
| 3089 | { |
| 3090 | unsigned int hash, rehash; |
| 3091 | |
| 3092 | /* Advance firstreal to the file position of this archive |
| 3093 | element. */ |
| 3094 | if (map[i].u.abfd != last_elt) |
| 3095 | { |
| 3096 | do |
| 3097 | { |
| 3098 | firstreal += arelt_size (current) + sizeof (struct ar_hdr); |
| 3099 | firstreal += firstreal % 2; |
| 3100 | current = current->next; |
| 3101 | } |
| 3102 | while (current != map[i].u.abfd); |
| 3103 | } |
| 3104 | |
| 3105 | last_elt = current; |
| 3106 | |
| 3107 | hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog); |
| 3108 | if (H_GET_32 (abfd, (hashtable + (hash * 8) + 4)) != 0) |
| 3109 | { |
| 3110 | unsigned int srch; |
| 3111 | |
| 3112 | /* The desired slot is already taken. */ |
| 3113 | for (srch = (hash + rehash) & (hashsize - 1); |
| 3114 | srch != hash; |
| 3115 | srch = (srch + rehash) & (hashsize - 1)) |
| 3116 | if (H_GET_32 (abfd, (hashtable + (srch * 8) + 4)) == 0) |
| 3117 | break; |
| 3118 | |
| 3119 | BFD_ASSERT (srch != hash); |
| 3120 | |
| 3121 | hash = srch; |
| 3122 | } |
| 3123 | |
| 3124 | H_PUT_32 (abfd, map[i].namidx, (hashtable + hash * 8)); |
| 3125 | H_PUT_32 (abfd, firstreal, (hashtable + hash * 8 + 4)); |
| 3126 | } |
| 3127 | |
| 3128 | if (bfd_bwrite ((void *) hashtable, symdefsize, abfd) != symdefsize) |
| 3129 | return FALSE; |
| 3130 | |
| 3131 | bfd_release (abfd, hashtable); |
| 3132 | |
| 3133 | /* Now write the strings. */ |
| 3134 | H_PUT_32 (abfd, stringsize, temp); |
| 3135 | if (bfd_bwrite ((void *) temp, (bfd_size_type) 4, abfd) != 4) |
| 3136 | return FALSE; |
| 3137 | for (i = 0; i < orl_count; i++) |
| 3138 | { |
| 3139 | bfd_size_type len; |
| 3140 | |
| 3141 | len = strlen (*map[i].name) + 1; |
| 3142 | if (bfd_bwrite ((void *) (*map[i].name), len, abfd) != len) |
| 3143 | return FALSE; |
| 3144 | } |
| 3145 | |
| 3146 | /* The spec sez this should be a newline. But in order to be |
| 3147 | bug-compatible for DECstation ar we use a null. */ |
| 3148 | if (padit) |
| 3149 | { |
| 3150 | if (bfd_bwrite ("", (bfd_size_type) 1, abfd) != 1) |
| 3151 | return FALSE; |
| 3152 | } |
| 3153 | |
| 3154 | return TRUE; |
| 3155 | } |
| 3156 | |
| 3157 | /* See whether this BFD is an archive. If it is, read in the armap |
| 3158 | and the extended name table. */ |
| 3159 | |
| 3160 | const bfd_target * |
| 3161 | _bfd_ecoff_archive_p (bfd *abfd) |
| 3162 | { |
| 3163 | struct artdata *tdata_hold; |
| 3164 | char armag[SARMAG + 1]; |
| 3165 | bfd_size_type amt; |
| 3166 | |
| 3167 | if (bfd_bread ((void *) armag, (bfd_size_type) SARMAG, abfd) != SARMAG) |
| 3168 | { |
| 3169 | if (bfd_get_error () != bfd_error_system_call) |
| 3170 | bfd_set_error (bfd_error_wrong_format); |
| 3171 | return NULL; |
| 3172 | } |
| 3173 | |
| 3174 | if (! strneq (armag, ARMAG, SARMAG)) |
| 3175 | { |
| 3176 | bfd_set_error (bfd_error_wrong_format); |
| 3177 | return NULL; |
| 3178 | } |
| 3179 | |
| 3180 | tdata_hold = bfd_ardata (abfd); |
| 3181 | |
| 3182 | amt = sizeof (struct artdata); |
| 3183 | bfd_ardata (abfd) = bfd_zalloc (abfd, amt); |
| 3184 | if (bfd_ardata (abfd) == NULL) |
| 3185 | { |
| 3186 | bfd_ardata (abfd) = tdata_hold; |
| 3187 | return NULL; |
| 3188 | } |
| 3189 | |
| 3190 | bfd_ardata (abfd)->first_file_filepos = SARMAG; |
| 3191 | /* Already cleared by bfd_zalloc above. |
| 3192 | bfd_ardata (abfd)->cache = NULL; |
| 3193 | bfd_ardata (abfd)->archive_head = NULL; |
| 3194 | bfd_ardata (abfd)->symdefs = NULL; |
| 3195 | bfd_ardata (abfd)->extended_names = NULL; |
| 3196 | bfd_ardata (abfd)->extended_names_size = 0; |
| 3197 | bfd_ardata (abfd)->tdata = NULL; */ |
| 3198 | |
| 3199 | if (! _bfd_ecoff_slurp_armap (abfd) |
| 3200 | || ! _bfd_ecoff_slurp_extended_name_table (abfd)) |
| 3201 | { |
| 3202 | bfd_release (abfd, bfd_ardata (abfd)); |
| 3203 | bfd_ardata (abfd) = tdata_hold; |
| 3204 | return NULL; |
| 3205 | } |
| 3206 | |
| 3207 | if (bfd_has_map (abfd)) |
| 3208 | { |
| 3209 | bfd *first; |
| 3210 | |
| 3211 | /* This archive has a map, so we may presume that the contents |
| 3212 | are object files. Make sure that if the first file in the |
| 3213 | archive can be recognized as an object file, it is for this |
| 3214 | target. If not, assume that this is the wrong format. If |
| 3215 | the first file is not an object file, somebody is doing |
| 3216 | something weird, and we permit it so that ar -t will work. */ |
| 3217 | |
| 3218 | first = bfd_openr_next_archived_file (abfd, NULL); |
| 3219 | if (first != NULL) |
| 3220 | { |
| 3221 | first->target_defaulted = FALSE; |
| 3222 | if (bfd_check_format (first, bfd_object) |
| 3223 | && first->xvec != abfd->xvec) |
| 3224 | { |
| 3225 | /* We ought to close `first' here, but we can't, because |
| 3226 | we have no way to remove it from the archive cache. |
| 3227 | It's almost impossible to figure out when we can |
| 3228 | release bfd_ardata. FIXME. */ |
| 3229 | bfd_set_error (bfd_error_wrong_object_format); |
| 3230 | bfd_ardata (abfd) = tdata_hold; |
| 3231 | return NULL; |
| 3232 | } |
| 3233 | /* And we ought to close `first' here too. */ |
| 3234 | } |
| 3235 | } |
| 3236 | |
| 3237 | return abfd->xvec; |
| 3238 | } |
| 3239 | \f |
| 3240 | /* ECOFF linker code. */ |
| 3241 | |
| 3242 | /* Routine to create an entry in an ECOFF link hash table. */ |
| 3243 | |
| 3244 | static struct bfd_hash_entry * |
| 3245 | ecoff_link_hash_newfunc (struct bfd_hash_entry *entry, |
| 3246 | struct bfd_hash_table *table, |
| 3247 | const char *string) |
| 3248 | { |
| 3249 | struct ecoff_link_hash_entry *ret = (struct ecoff_link_hash_entry *) entry; |
| 3250 | |
| 3251 | /* Allocate the structure if it has not already been allocated by a |
| 3252 | subclass. */ |
| 3253 | if (ret == NULL) |
| 3254 | ret = ((struct ecoff_link_hash_entry *) |
| 3255 | bfd_hash_allocate (table, sizeof (struct ecoff_link_hash_entry))); |
| 3256 | if (ret == NULL) |
| 3257 | return NULL; |
| 3258 | |
| 3259 | /* Call the allocation method of the superclass. */ |
| 3260 | ret = ((struct ecoff_link_hash_entry *) |
| 3261 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
| 3262 | table, string)); |
| 3263 | |
| 3264 | if (ret) |
| 3265 | { |
| 3266 | /* Set local fields. */ |
| 3267 | ret->indx = -1; |
| 3268 | ret->abfd = NULL; |
| 3269 | ret->written = 0; |
| 3270 | ret->small = 0; |
| 3271 | } |
| 3272 | memset ((void *) &ret->esym, 0, sizeof ret->esym); |
| 3273 | |
| 3274 | return (struct bfd_hash_entry *) ret; |
| 3275 | } |
| 3276 | |
| 3277 | /* Create an ECOFF link hash table. */ |
| 3278 | |
| 3279 | struct bfd_link_hash_table * |
| 3280 | _bfd_ecoff_bfd_link_hash_table_create (bfd *abfd) |
| 3281 | { |
| 3282 | struct ecoff_link_hash_table *ret; |
| 3283 | bfd_size_type amt = sizeof (struct ecoff_link_hash_table); |
| 3284 | |
| 3285 | ret = bfd_malloc (amt); |
| 3286 | if (ret == NULL) |
| 3287 | return NULL; |
| 3288 | if (!_bfd_link_hash_table_init (&ret->root, abfd, |
| 3289 | ecoff_link_hash_newfunc, |
| 3290 | sizeof (struct ecoff_link_hash_entry))) |
| 3291 | { |
| 3292 | free (ret); |
| 3293 | return NULL; |
| 3294 | } |
| 3295 | return &ret->root; |
| 3296 | } |
| 3297 | |
| 3298 | /* Look up an entry in an ECOFF link hash table. */ |
| 3299 | |
| 3300 | #define ecoff_link_hash_lookup(table, string, create, copy, follow) \ |
| 3301 | ((struct ecoff_link_hash_entry *) \ |
| 3302 | bfd_link_hash_lookup (&(table)->root, (string), (create), (copy), (follow))) |
| 3303 | |
| 3304 | /* Traverse an ECOFF link hash table. */ |
| 3305 | |
| 3306 | #define ecoff_link_hash_traverse(table, func, info) \ |
| 3307 | (bfd_link_hash_traverse \ |
| 3308 | (&(table)->root, \ |
| 3309 | (bfd_boolean (*) (struct bfd_link_hash_entry *, void *)) (func), \ |
| 3310 | (info))) |
| 3311 | |
| 3312 | /* Get the ECOFF link hash table from the info structure. This is |
| 3313 | just a cast. */ |
| 3314 | |
| 3315 | #define ecoff_hash_table(p) ((struct ecoff_link_hash_table *) ((p)->hash)) |
| 3316 | |
| 3317 | /* Add the external symbols of an object file to the global linker |
| 3318 | hash table. The external symbols and strings we are passed are |
| 3319 | just allocated on the stack, and will be discarded. We must |
| 3320 | explicitly save any information we may need later on in the link. |
| 3321 | We do not want to read the external symbol information again. */ |
| 3322 | |
| 3323 | static bfd_boolean |
| 3324 | ecoff_link_add_externals (bfd *abfd, |
| 3325 | struct bfd_link_info *info, |
| 3326 | void * external_ext, |
| 3327 | char *ssext) |
| 3328 | { |
| 3329 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 3330 | void (* const swap_ext_in) (bfd *, void *, EXTR *) |
| 3331 | = backend->debug_swap.swap_ext_in; |
| 3332 | bfd_size_type external_ext_size = backend->debug_swap.external_ext_size; |
| 3333 | unsigned long ext_count; |
| 3334 | struct bfd_link_hash_entry **sym_hash; |
| 3335 | char *ext_ptr; |
| 3336 | char *ext_end; |
| 3337 | bfd_size_type amt; |
| 3338 | |
| 3339 | ext_count = ecoff_data (abfd)->debug_info.symbolic_header.iextMax; |
| 3340 | |
| 3341 | amt = ext_count; |
| 3342 | amt *= sizeof (struct bfd_link_hash_entry *); |
| 3343 | sym_hash = bfd_alloc (abfd, amt); |
| 3344 | if (!sym_hash) |
| 3345 | return FALSE; |
| 3346 | ecoff_data (abfd)->sym_hashes = (struct ecoff_link_hash_entry **) sym_hash; |
| 3347 | |
| 3348 | ext_ptr = (char *) external_ext; |
| 3349 | ext_end = ext_ptr + ext_count * external_ext_size; |
| 3350 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size, sym_hash++) |
| 3351 | { |
| 3352 | EXTR esym; |
| 3353 | bfd_boolean skip; |
| 3354 | bfd_vma value; |
| 3355 | asection *section; |
| 3356 | const char *name; |
| 3357 | struct ecoff_link_hash_entry *h; |
| 3358 | |
| 3359 | *sym_hash = NULL; |
| 3360 | |
| 3361 | (*swap_ext_in) (abfd, (void *) ext_ptr, &esym); |
| 3362 | |
| 3363 | /* Skip debugging symbols. */ |
| 3364 | skip = FALSE; |
| 3365 | switch (esym.asym.st) |
| 3366 | { |
| 3367 | case stGlobal: |
| 3368 | case stStatic: |
| 3369 | case stLabel: |
| 3370 | case stProc: |
| 3371 | case stStaticProc: |
| 3372 | break; |
| 3373 | default: |
| 3374 | skip = TRUE; |
| 3375 | break; |
| 3376 | } |
| 3377 | |
| 3378 | if (skip) |
| 3379 | continue; |
| 3380 | |
| 3381 | /* Get the information for this symbol. */ |
| 3382 | value = esym.asym.value; |
| 3383 | switch (esym.asym.sc) |
| 3384 | { |
| 3385 | default: |
| 3386 | case scNil: |
| 3387 | case scRegister: |
| 3388 | case scCdbLocal: |
| 3389 | case scBits: |
| 3390 | case scCdbSystem: |
| 3391 | case scRegImage: |
| 3392 | case scInfo: |
| 3393 | case scUserStruct: |
| 3394 | case scVar: |
| 3395 | case scVarRegister: |
| 3396 | case scVariant: |
| 3397 | case scBasedVar: |
| 3398 | case scXData: |
| 3399 | case scPData: |
| 3400 | section = NULL; |
| 3401 | break; |
| 3402 | case scText: |
| 3403 | section = bfd_make_section_old_way (abfd, _TEXT); |
| 3404 | value -= section->vma; |
| 3405 | break; |
| 3406 | case scData: |
| 3407 | section = bfd_make_section_old_way (abfd, _DATA); |
| 3408 | value -= section->vma; |
| 3409 | break; |
| 3410 | case scBss: |
| 3411 | section = bfd_make_section_old_way (abfd, _BSS); |
| 3412 | value -= section->vma; |
| 3413 | break; |
| 3414 | case scAbs: |
| 3415 | section = bfd_abs_section_ptr; |
| 3416 | break; |
| 3417 | case scUndefined: |
| 3418 | section = bfd_und_section_ptr; |
| 3419 | break; |
| 3420 | case scSData: |
| 3421 | section = bfd_make_section_old_way (abfd, _SDATA); |
| 3422 | value -= section->vma; |
| 3423 | break; |
| 3424 | case scSBss: |
| 3425 | section = bfd_make_section_old_way (abfd, _SBSS); |
| 3426 | value -= section->vma; |
| 3427 | break; |
| 3428 | case scRData: |
| 3429 | section = bfd_make_section_old_way (abfd, _RDATA); |
| 3430 | value -= section->vma; |
| 3431 | break; |
| 3432 | case scCommon: |
| 3433 | if (value > ecoff_data (abfd)->gp_size) |
| 3434 | { |
| 3435 | section = bfd_com_section_ptr; |
| 3436 | break; |
| 3437 | } |
| 3438 | /* Fall through. */ |
| 3439 | case scSCommon: |
| 3440 | if (ecoff_scom_section.name == NULL) |
| 3441 | { |
| 3442 | /* Initialize the small common section. */ |
| 3443 | ecoff_scom_section.name = SCOMMON; |
| 3444 | ecoff_scom_section.flags = SEC_IS_COMMON; |
| 3445 | ecoff_scom_section.output_section = &ecoff_scom_section; |
| 3446 | ecoff_scom_section.symbol = &ecoff_scom_symbol; |
| 3447 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; |
| 3448 | ecoff_scom_symbol.name = SCOMMON; |
| 3449 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; |
| 3450 | ecoff_scom_symbol.section = &ecoff_scom_section; |
| 3451 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; |
| 3452 | } |
| 3453 | section = &ecoff_scom_section; |
| 3454 | break; |
| 3455 | case scSUndefined: |
| 3456 | section = bfd_und_section_ptr; |
| 3457 | break; |
| 3458 | case scInit: |
| 3459 | section = bfd_make_section_old_way (abfd, _INIT); |
| 3460 | value -= section->vma; |
| 3461 | break; |
| 3462 | case scFini: |
| 3463 | section = bfd_make_section_old_way (abfd, _FINI); |
| 3464 | value -= section->vma; |
| 3465 | break; |
| 3466 | case scRConst: |
| 3467 | section = bfd_make_section_old_way (abfd, _RCONST); |
| 3468 | value -= section->vma; |
| 3469 | break; |
| 3470 | } |
| 3471 | |
| 3472 | if (section == NULL) |
| 3473 | continue; |
| 3474 | |
| 3475 | name = ssext + esym.asym.iss; |
| 3476 | |
| 3477 | if (! (_bfd_generic_link_add_one_symbol |
| 3478 | (info, abfd, name, |
| 3479 | (flagword) (esym.weakext ? BSF_WEAK : BSF_GLOBAL), |
| 3480 | section, value, NULL, TRUE, TRUE, sym_hash))) |
| 3481 | return FALSE; |
| 3482 | |
| 3483 | h = (struct ecoff_link_hash_entry *) *sym_hash; |
| 3484 | |
| 3485 | /* If we are building an ECOFF hash table, save the external |
| 3486 | symbol information. */ |
| 3487 | if (info->hash->creator->flavour == bfd_get_flavour (abfd)) |
| 3488 | { |
| 3489 | if (h->abfd == NULL |
| 3490 | || (! bfd_is_und_section (section) |
| 3491 | && (! bfd_is_com_section (section) |
| 3492 | || (h->root.type != bfd_link_hash_defined |
| 3493 | && h->root.type != bfd_link_hash_defweak)))) |
| 3494 | { |
| 3495 | h->abfd = abfd; |
| 3496 | h->esym = esym; |
| 3497 | } |
| 3498 | |
| 3499 | /* Remember whether this symbol was small undefined. */ |
| 3500 | if (esym.asym.sc == scSUndefined) |
| 3501 | h->small = 1; |
| 3502 | |
| 3503 | /* If this symbol was ever small undefined, it needs to wind |
| 3504 | up in a GP relative section. We can't control the |
| 3505 | section of a defined symbol, but we can control the |
| 3506 | section of a common symbol. This case is actually needed |
| 3507 | on Ultrix 4.2 to handle the symbol cred in -lckrb. */ |
| 3508 | if (h->small |
| 3509 | && h->root.type == bfd_link_hash_common |
| 3510 | && streq (h->root.u.c.p->section->name, SCOMMON)) |
| 3511 | { |
| 3512 | h->root.u.c.p->section = bfd_make_section_old_way (abfd, |
| 3513 | SCOMMON); |
| 3514 | h->root.u.c.p->section->flags = SEC_ALLOC; |
| 3515 | if (h->esym.asym.sc == scCommon) |
| 3516 | h->esym.asym.sc = scSCommon; |
| 3517 | } |
| 3518 | } |
| 3519 | } |
| 3520 | |
| 3521 | return TRUE; |
| 3522 | } |
| 3523 | |
| 3524 | /* Add symbols from an ECOFF object file to the global linker hash |
| 3525 | table. */ |
| 3526 | |
| 3527 | static bfd_boolean |
| 3528 | ecoff_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) |
| 3529 | { |
| 3530 | HDRR *symhdr; |
| 3531 | bfd_size_type external_ext_size; |
| 3532 | void * external_ext = NULL; |
| 3533 | bfd_size_type esize; |
| 3534 | char *ssext = NULL; |
| 3535 | bfd_boolean result; |
| 3536 | |
| 3537 | if (! ecoff_slurp_symbolic_header (abfd)) |
| 3538 | return FALSE; |
| 3539 | |
| 3540 | /* If there are no symbols, we don't want it. */ |
| 3541 | if (bfd_get_symcount (abfd) == 0) |
| 3542 | return TRUE; |
| 3543 | |
| 3544 | symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; |
| 3545 | |
| 3546 | /* Read in the external symbols and external strings. */ |
| 3547 | external_ext_size = ecoff_backend (abfd)->debug_swap.external_ext_size; |
| 3548 | esize = symhdr->iextMax * external_ext_size; |
| 3549 | external_ext = bfd_malloc (esize); |
| 3550 | if (external_ext == NULL && esize != 0) |
| 3551 | goto error_return; |
| 3552 | |
| 3553 | if (bfd_seek (abfd, (file_ptr) symhdr->cbExtOffset, SEEK_SET) != 0 |
| 3554 | || bfd_bread (external_ext, esize, abfd) != esize) |
| 3555 | goto error_return; |
| 3556 | |
| 3557 | ssext = bfd_malloc ((bfd_size_type) symhdr->issExtMax); |
| 3558 | if (ssext == NULL && symhdr->issExtMax != 0) |
| 3559 | goto error_return; |
| 3560 | |
| 3561 | if (bfd_seek (abfd, (file_ptr) symhdr->cbSsExtOffset, SEEK_SET) != 0 |
| 3562 | || (bfd_bread (ssext, (bfd_size_type) symhdr->issExtMax, abfd) |
| 3563 | != (bfd_size_type) symhdr->issExtMax)) |
| 3564 | goto error_return; |
| 3565 | |
| 3566 | result = ecoff_link_add_externals (abfd, info, external_ext, ssext); |
| 3567 | |
| 3568 | if (ssext != NULL) |
| 3569 | free (ssext); |
| 3570 | if (external_ext != NULL) |
| 3571 | free (external_ext); |
| 3572 | return result; |
| 3573 | |
| 3574 | error_return: |
| 3575 | if (ssext != NULL) |
| 3576 | free (ssext); |
| 3577 | if (external_ext != NULL) |
| 3578 | free (external_ext); |
| 3579 | return FALSE; |
| 3580 | } |
| 3581 | |
| 3582 | /* This is called if we used _bfd_generic_link_add_archive_symbols |
| 3583 | because we were not dealing with an ECOFF archive. */ |
| 3584 | |
| 3585 | static bfd_boolean |
| 3586 | ecoff_link_check_archive_element (bfd *abfd, |
| 3587 | struct bfd_link_info *info, |
| 3588 | bfd_boolean *pneeded) |
| 3589 | { |
| 3590 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 3591 | void (* const swap_ext_in) (bfd *, void *, EXTR *) |
| 3592 | = backend->debug_swap.swap_ext_in; |
| 3593 | HDRR *symhdr; |
| 3594 | bfd_size_type external_ext_size; |
| 3595 | void * external_ext = NULL; |
| 3596 | bfd_size_type esize; |
| 3597 | char *ssext = NULL; |
| 3598 | char *ext_ptr; |
| 3599 | char *ext_end; |
| 3600 | |
| 3601 | *pneeded = FALSE; |
| 3602 | |
| 3603 | if (! ecoff_slurp_symbolic_header (abfd)) |
| 3604 | goto error_return; |
| 3605 | |
| 3606 | /* If there are no symbols, we don't want it. */ |
| 3607 | if (bfd_get_symcount (abfd) == 0) |
| 3608 | goto successful_return; |
| 3609 | |
| 3610 | symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; |
| 3611 | |
| 3612 | /* Read in the external symbols and external strings. */ |
| 3613 | external_ext_size = backend->debug_swap.external_ext_size; |
| 3614 | esize = symhdr->iextMax * external_ext_size; |
| 3615 | external_ext = bfd_malloc (esize); |
| 3616 | if (external_ext == NULL && esize != 0) |
| 3617 | goto error_return; |
| 3618 | |
| 3619 | if (bfd_seek (abfd, (file_ptr) symhdr->cbExtOffset, SEEK_SET) != 0 |
| 3620 | || bfd_bread (external_ext, esize, abfd) != esize) |
| 3621 | goto error_return; |
| 3622 | |
| 3623 | ssext = bfd_malloc ((bfd_size_type) symhdr->issExtMax); |
| 3624 | if (ssext == NULL && symhdr->issExtMax != 0) |
| 3625 | goto error_return; |
| 3626 | |
| 3627 | if (bfd_seek (abfd, (file_ptr) symhdr->cbSsExtOffset, SEEK_SET) != 0 |
| 3628 | || (bfd_bread (ssext, (bfd_size_type) symhdr->issExtMax, abfd) |
| 3629 | != (bfd_size_type) symhdr->issExtMax)) |
| 3630 | goto error_return; |
| 3631 | |
| 3632 | /* Look through the external symbols to see if they define some |
| 3633 | symbol that is currently undefined. */ |
| 3634 | ext_ptr = (char *) external_ext; |
| 3635 | ext_end = ext_ptr + esize; |
| 3636 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size) |
| 3637 | { |
| 3638 | EXTR esym; |
| 3639 | bfd_boolean def; |
| 3640 | const char *name; |
| 3641 | struct bfd_link_hash_entry *h; |
| 3642 | |
| 3643 | (*swap_ext_in) (abfd, (void *) ext_ptr, &esym); |
| 3644 | |
| 3645 | /* See if this symbol defines something. */ |
| 3646 | if (esym.asym.st != stGlobal |
| 3647 | && esym.asym.st != stLabel |
| 3648 | && esym.asym.st != stProc) |
| 3649 | continue; |
| 3650 | |
| 3651 | switch (esym.asym.sc) |
| 3652 | { |
| 3653 | case scText: |
| 3654 | case scData: |
| 3655 | case scBss: |
| 3656 | case scAbs: |
| 3657 | case scSData: |
| 3658 | case scSBss: |
| 3659 | case scRData: |
| 3660 | case scCommon: |
| 3661 | case scSCommon: |
| 3662 | case scInit: |
| 3663 | case scFini: |
| 3664 | case scRConst: |
| 3665 | def = TRUE; |
| 3666 | break; |
| 3667 | default: |
| 3668 | def = FALSE; |
| 3669 | break; |
| 3670 | } |
| 3671 | |
| 3672 | if (! def) |
| 3673 | continue; |
| 3674 | |
| 3675 | name = ssext + esym.asym.iss; |
| 3676 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); |
| 3677 | |
| 3678 | /* Unlike the generic linker, we do not pull in elements because |
| 3679 | of common symbols. */ |
| 3680 | if (h == NULL |
| 3681 | || h->type != bfd_link_hash_undefined) |
| 3682 | continue; |
| 3683 | |
| 3684 | /* Include this element. */ |
| 3685 | if (! (*info->callbacks->add_archive_element) (info, abfd, name)) |
| 3686 | goto error_return; |
| 3687 | if (! ecoff_link_add_externals (abfd, info, external_ext, ssext)) |
| 3688 | goto error_return; |
| 3689 | |
| 3690 | *pneeded = TRUE; |
| 3691 | goto successful_return; |
| 3692 | } |
| 3693 | |
| 3694 | successful_return: |
| 3695 | if (external_ext != NULL) |
| 3696 | free (external_ext); |
| 3697 | if (ssext != NULL) |
| 3698 | free (ssext); |
| 3699 | return TRUE; |
| 3700 | error_return: |
| 3701 | if (external_ext != NULL) |
| 3702 | free (external_ext); |
| 3703 | if (ssext != NULL) |
| 3704 | free (ssext); |
| 3705 | return FALSE; |
| 3706 | } |
| 3707 | |
| 3708 | /* Add the symbols from an archive file to the global hash table. |
| 3709 | This looks through the undefined symbols, looks each one up in the |
| 3710 | archive hash table, and adds any associated object file. We do not |
| 3711 | use _bfd_generic_link_add_archive_symbols because ECOFF archives |
| 3712 | already have a hash table, so there is no reason to construct |
| 3713 | another one. */ |
| 3714 | |
| 3715 | static bfd_boolean |
| 3716 | ecoff_link_add_archive_symbols (bfd *abfd, struct bfd_link_info *info) |
| 3717 | { |
| 3718 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 3719 | const bfd_byte *raw_armap; |
| 3720 | struct bfd_link_hash_entry **pundef; |
| 3721 | unsigned int armap_count; |
| 3722 | unsigned int armap_log; |
| 3723 | unsigned int i; |
| 3724 | const bfd_byte *hashtable; |
| 3725 | const char *stringbase; |
| 3726 | |
| 3727 | if (! bfd_has_map (abfd)) |
| 3728 | { |
| 3729 | /* An empty archive is a special case. */ |
| 3730 | if (bfd_openr_next_archived_file (abfd, NULL) == NULL) |
| 3731 | return TRUE; |
| 3732 | bfd_set_error (bfd_error_no_armap); |
| 3733 | return FALSE; |
| 3734 | } |
| 3735 | |
| 3736 | /* If we don't have any raw data for this archive, as can happen on |
| 3737 | Irix 4.0.5F, we call the generic routine. |
| 3738 | FIXME: We should be more clever about this, since someday tdata |
| 3739 | may get to something for a generic archive. */ |
| 3740 | raw_armap = (const bfd_byte *) bfd_ardata (abfd)->tdata; |
| 3741 | if (raw_armap == NULL) |
| 3742 | return (_bfd_generic_link_add_archive_symbols |
| 3743 | (abfd, info, ecoff_link_check_archive_element)); |
| 3744 | |
| 3745 | armap_count = H_GET_32 (abfd, raw_armap); |
| 3746 | |
| 3747 | armap_log = 0; |
| 3748 | for (i = 1; i < armap_count; i <<= 1) |
| 3749 | armap_log++; |
| 3750 | BFD_ASSERT (i == armap_count); |
| 3751 | |
| 3752 | hashtable = raw_armap + 4; |
| 3753 | stringbase = (const char *) raw_armap + armap_count * 8 + 8; |
| 3754 | |
| 3755 | /* Look through the list of undefined symbols. */ |
| 3756 | pundef = &info->hash->undefs; |
| 3757 | while (*pundef != NULL) |
| 3758 | { |
| 3759 | struct bfd_link_hash_entry *h; |
| 3760 | unsigned int hash, rehash; |
| 3761 | unsigned int file_offset; |
| 3762 | const char *name; |
| 3763 | bfd *element; |
| 3764 | |
| 3765 | h = *pundef; |
| 3766 | |
| 3767 | /* When a symbol is defined, it is not necessarily removed from |
| 3768 | the list. */ |
| 3769 | if (h->type != bfd_link_hash_undefined |
| 3770 | && h->type != bfd_link_hash_common) |
| 3771 | { |
| 3772 | /* Remove this entry from the list, for general cleanliness |
| 3773 | and because we are going to look through the list again |
| 3774 | if we search any more libraries. We can't remove the |
| 3775 | entry if it is the tail, because that would lose any |
| 3776 | entries we add to the list later on. */ |
| 3777 | if (*pundef != info->hash->undefs_tail) |
| 3778 | *pundef = (*pundef)->u.undef.next; |
| 3779 | else |
| 3780 | pundef = &(*pundef)->u.undef.next; |
| 3781 | continue; |
| 3782 | } |
| 3783 | |
| 3784 | /* Native ECOFF linkers do not pull in archive elements merely |
| 3785 | to satisfy common definitions, so neither do we. We leave |
| 3786 | them on the list, though, in case we are linking against some |
| 3787 | other object format. */ |
| 3788 | if (h->type != bfd_link_hash_undefined) |
| 3789 | { |
| 3790 | pundef = &(*pundef)->u.undef.next; |
| 3791 | continue; |
| 3792 | } |
| 3793 | |
| 3794 | /* Look for this symbol in the archive hash table. */ |
| 3795 | hash = ecoff_armap_hash (h->root.string, &rehash, armap_count, |
| 3796 | armap_log); |
| 3797 | |
| 3798 | file_offset = H_GET_32 (abfd, hashtable + (hash * 8) + 4); |
| 3799 | if (file_offset == 0) |
| 3800 | { |
| 3801 | /* Nothing in this slot. */ |
| 3802 | pundef = &(*pundef)->u.undef.next; |
| 3803 | continue; |
| 3804 | } |
| 3805 | |
| 3806 | name = stringbase + H_GET_32 (abfd, hashtable + (hash * 8)); |
| 3807 | if (name[0] != h->root.string[0] |
| 3808 | || ! streq (name, h->root.string)) |
| 3809 | { |
| 3810 | unsigned int srch; |
| 3811 | bfd_boolean found; |
| 3812 | |
| 3813 | /* That was the wrong symbol. Try rehashing. */ |
| 3814 | found = FALSE; |
| 3815 | for (srch = (hash + rehash) & (armap_count - 1); |
| 3816 | srch != hash; |
| 3817 | srch = (srch + rehash) & (armap_count - 1)) |
| 3818 | { |
| 3819 | file_offset = H_GET_32 (abfd, hashtable + (srch * 8) + 4); |
| 3820 | if (file_offset == 0) |
| 3821 | break; |
| 3822 | name = stringbase + H_GET_32 (abfd, hashtable + (srch * 8)); |
| 3823 | if (name[0] == h->root.string[0] |
| 3824 | && streq (name, h->root.string)) |
| 3825 | { |
| 3826 | found = TRUE; |
| 3827 | break; |
| 3828 | } |
| 3829 | } |
| 3830 | |
| 3831 | if (! found) |
| 3832 | { |
| 3833 | pundef = &(*pundef)->u.undef.next; |
| 3834 | continue; |
| 3835 | } |
| 3836 | |
| 3837 | hash = srch; |
| 3838 | } |
| 3839 | |
| 3840 | element = (*backend->get_elt_at_filepos) (abfd, (file_ptr) file_offset); |
| 3841 | if (element == NULL) |
| 3842 | return FALSE; |
| 3843 | |
| 3844 | if (! bfd_check_format (element, bfd_object)) |
| 3845 | return FALSE; |
| 3846 | |
| 3847 | /* Unlike the generic linker, we know that this element provides |
| 3848 | a definition for an undefined symbol and we know that we want |
| 3849 | to include it. We don't need to check anything. */ |
| 3850 | if (! (*info->callbacks->add_archive_element) (info, element, name)) |
| 3851 | return FALSE; |
| 3852 | if (! ecoff_link_add_object_symbols (element, info)) |
| 3853 | return FALSE; |
| 3854 | |
| 3855 | pundef = &(*pundef)->u.undef.next; |
| 3856 | } |
| 3857 | |
| 3858 | return TRUE; |
| 3859 | } |
| 3860 | |
| 3861 | /* Given an ECOFF BFD, add symbols to the global hash table as |
| 3862 | appropriate. */ |
| 3863 | |
| 3864 | bfd_boolean |
| 3865 | _bfd_ecoff_bfd_link_add_symbols (bfd *abfd, struct bfd_link_info *info) |
| 3866 | { |
| 3867 | switch (bfd_get_format (abfd)) |
| 3868 | { |
| 3869 | case bfd_object: |
| 3870 | return ecoff_link_add_object_symbols (abfd, info); |
| 3871 | case bfd_archive: |
| 3872 | return ecoff_link_add_archive_symbols (abfd, info); |
| 3873 | default: |
| 3874 | bfd_set_error (bfd_error_wrong_format); |
| 3875 | return FALSE; |
| 3876 | } |
| 3877 | } |
| 3878 | |
| 3879 | \f |
| 3880 | /* ECOFF final link routines. */ |
| 3881 | |
| 3882 | /* Structure used to pass information to ecoff_link_write_external. */ |
| 3883 | |
| 3884 | struct extsym_info |
| 3885 | { |
| 3886 | bfd *abfd; |
| 3887 | struct bfd_link_info *info; |
| 3888 | }; |
| 3889 | |
| 3890 | /* Accumulate the debugging information for an input BFD into the |
| 3891 | output BFD. This must read in the symbolic information of the |
| 3892 | input BFD. */ |
| 3893 | |
| 3894 | static bfd_boolean |
| 3895 | ecoff_final_link_debug_accumulate (bfd *output_bfd, |
| 3896 | bfd *input_bfd, |
| 3897 | struct bfd_link_info *info, |
| 3898 | void * handle) |
| 3899 | { |
| 3900 | struct ecoff_debug_info * const debug = &ecoff_data (input_bfd)->debug_info; |
| 3901 | const struct ecoff_debug_swap * const swap = |
| 3902 | &ecoff_backend (input_bfd)->debug_swap; |
| 3903 | HDRR *symhdr = &debug->symbolic_header; |
| 3904 | bfd_boolean ret; |
| 3905 | |
| 3906 | #define READ(ptr, offset, count, size, type) \ |
| 3907 | if (symhdr->count == 0) \ |
| 3908 | debug->ptr = NULL; \ |
| 3909 | else \ |
| 3910 | { \ |
| 3911 | bfd_size_type amt = (bfd_size_type) size * symhdr->count; \ |
| 3912 | debug->ptr = bfd_malloc (amt); \ |
| 3913 | if (debug->ptr == NULL) \ |
| 3914 | { \ |
| 3915 | ret = FALSE; \ |
| 3916 | goto return_something; \ |
| 3917 | } \ |
| 3918 | if (bfd_seek (input_bfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \ |
| 3919 | || bfd_bread (debug->ptr, amt, input_bfd) != amt) \ |
| 3920 | { \ |
| 3921 | ret = FALSE; \ |
| 3922 | goto return_something; \ |
| 3923 | } \ |
| 3924 | } |
| 3925 | |
| 3926 | /* If raw_syments is not NULL, then the data was already by read by |
| 3927 | _bfd_ecoff_slurp_symbolic_info. */ |
| 3928 | if (ecoff_data (input_bfd)->raw_syments == NULL) |
| 3929 | { |
| 3930 | READ (line, cbLineOffset, cbLine, sizeof (unsigned char), |
| 3931 | unsigned char *); |
| 3932 | READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, void *); |
| 3933 | READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, void *); |
| 3934 | READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, void *); |
| 3935 | READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, void *); |
| 3936 | READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext), |
| 3937 | union aux_ext *); |
| 3938 | READ (ss, cbSsOffset, issMax, sizeof (char), char *); |
| 3939 | READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, void *); |
| 3940 | READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, void *); |
| 3941 | } |
| 3942 | #undef READ |
| 3943 | |
| 3944 | /* We do not read the external strings or the external symbols. */ |
| 3945 | |
| 3946 | ret = (bfd_ecoff_debug_accumulate |
| 3947 | (handle, output_bfd, &ecoff_data (output_bfd)->debug_info, |
| 3948 | &ecoff_backend (output_bfd)->debug_swap, |
| 3949 | input_bfd, debug, swap, info)); |
| 3950 | |
| 3951 | return_something: |
| 3952 | if (ecoff_data (input_bfd)->raw_syments == NULL) |
| 3953 | { |
| 3954 | if (debug->line != NULL) |
| 3955 | free (debug->line); |
| 3956 | if (debug->external_dnr != NULL) |
| 3957 | free (debug->external_dnr); |
| 3958 | if (debug->external_pdr != NULL) |
| 3959 | free (debug->external_pdr); |
| 3960 | if (debug->external_sym != NULL) |
| 3961 | free (debug->external_sym); |
| 3962 | if (debug->external_opt != NULL) |
| 3963 | free (debug->external_opt); |
| 3964 | if (debug->external_aux != NULL) |
| 3965 | free (debug->external_aux); |
| 3966 | if (debug->ss != NULL) |
| 3967 | free (debug->ss); |
| 3968 | if (debug->external_fdr != NULL) |
| 3969 | free (debug->external_fdr); |
| 3970 | if (debug->external_rfd != NULL) |
| 3971 | free (debug->external_rfd); |
| 3972 | |
| 3973 | /* Make sure we don't accidentally follow one of these pointers |
| 3974 | into freed memory. */ |
| 3975 | debug->line = NULL; |
| 3976 | debug->external_dnr = NULL; |
| 3977 | debug->external_pdr = NULL; |
| 3978 | debug->external_sym = NULL; |
| 3979 | debug->external_opt = NULL; |
| 3980 | debug->external_aux = NULL; |
| 3981 | debug->ss = NULL; |
| 3982 | debug->external_fdr = NULL; |
| 3983 | debug->external_rfd = NULL; |
| 3984 | } |
| 3985 | |
| 3986 | return ret; |
| 3987 | } |
| 3988 | |
| 3989 | /* Relocate and write an ECOFF section into an ECOFF output file. */ |
| 3990 | |
| 3991 | static bfd_boolean |
| 3992 | ecoff_indirect_link_order (bfd *output_bfd, |
| 3993 | struct bfd_link_info *info, |
| 3994 | asection *output_section, |
| 3995 | struct bfd_link_order *link_order) |
| 3996 | { |
| 3997 | asection *input_section; |
| 3998 | bfd *input_bfd; |
| 3999 | bfd_byte *contents = NULL; |
| 4000 | bfd_size_type external_reloc_size; |
| 4001 | bfd_size_type external_relocs_size; |
| 4002 | void * external_relocs = NULL; |
| 4003 | |
| 4004 | BFD_ASSERT ((output_section->flags & SEC_HAS_CONTENTS) != 0); |
| 4005 | |
| 4006 | input_section = link_order->u.indirect.section; |
| 4007 | input_bfd = input_section->owner; |
| 4008 | if (input_section->size == 0) |
| 4009 | return TRUE; |
| 4010 | |
| 4011 | BFD_ASSERT (input_section->output_section == output_section); |
| 4012 | BFD_ASSERT (input_section->output_offset == link_order->offset); |
| 4013 | BFD_ASSERT (input_section->size == link_order->size); |
| 4014 | |
| 4015 | /* Get the section contents. */ |
| 4016 | if (!bfd_malloc_and_get_section (input_bfd, input_section, &contents)) |
| 4017 | goto error_return; |
| 4018 | |
| 4019 | /* Get the relocs. If we are relaxing MIPS code, they will already |
| 4020 | have been read in. Otherwise, we read them in now. */ |
| 4021 | external_reloc_size = ecoff_backend (input_bfd)->external_reloc_size; |
| 4022 | external_relocs_size = external_reloc_size * input_section->reloc_count; |
| 4023 | |
| 4024 | external_relocs = bfd_malloc (external_relocs_size); |
| 4025 | if (external_relocs == NULL && external_relocs_size != 0) |
| 4026 | goto error_return; |
| 4027 | |
| 4028 | if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0 |
| 4029 | || (bfd_bread (external_relocs, external_relocs_size, input_bfd) |
| 4030 | != external_relocs_size)) |
| 4031 | goto error_return; |
| 4032 | |
| 4033 | /* Relocate the section contents. */ |
| 4034 | if (! ((*ecoff_backend (input_bfd)->relocate_section) |
| 4035 | (output_bfd, info, input_bfd, input_section, contents, |
| 4036 | external_relocs))) |
| 4037 | goto error_return; |
| 4038 | |
| 4039 | /* Write out the relocated section. */ |
| 4040 | if (! bfd_set_section_contents (output_bfd, |
| 4041 | output_section, |
| 4042 | contents, |
| 4043 | input_section->output_offset, |
| 4044 | input_section->size)) |
| 4045 | goto error_return; |
| 4046 | |
| 4047 | /* If we are producing relocatable output, the relocs were |
| 4048 | modified, and we write them out now. We use the reloc_count |
| 4049 | field of output_section to keep track of the number of relocs we |
| 4050 | have output so far. */ |
| 4051 | if (info->relocatable) |
| 4052 | { |
| 4053 | file_ptr pos = (output_section->rel_filepos |
| 4054 | + output_section->reloc_count * external_reloc_size); |
| 4055 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 |
| 4056 | || (bfd_bwrite (external_relocs, external_relocs_size, output_bfd) |
| 4057 | != external_relocs_size)) |
| 4058 | goto error_return; |
| 4059 | output_section->reloc_count += input_section->reloc_count; |
| 4060 | } |
| 4061 | |
| 4062 | if (contents != NULL) |
| 4063 | free (contents); |
| 4064 | if (external_relocs != NULL) |
| 4065 | free (external_relocs); |
| 4066 | return TRUE; |
| 4067 | |
| 4068 | error_return: |
| 4069 | if (contents != NULL) |
| 4070 | free (contents); |
| 4071 | if (external_relocs != NULL) |
| 4072 | free (external_relocs); |
| 4073 | return FALSE; |
| 4074 | } |
| 4075 | |
| 4076 | /* Generate a reloc when linking an ECOFF file. This is a reloc |
| 4077 | requested by the linker, and does come from any input file. This |
| 4078 | is used to build constructor and destructor tables when linking |
| 4079 | with -Ur. */ |
| 4080 | |
| 4081 | static bfd_boolean |
| 4082 | ecoff_reloc_link_order (bfd *output_bfd, |
| 4083 | struct bfd_link_info *info, |
| 4084 | asection *output_section, |
| 4085 | struct bfd_link_order *link_order) |
| 4086 | { |
| 4087 | enum bfd_link_order_type type; |
| 4088 | asection *section; |
| 4089 | bfd_vma addend; |
| 4090 | arelent rel; |
| 4091 | struct internal_reloc in; |
| 4092 | bfd_size_type external_reloc_size; |
| 4093 | bfd_byte *rbuf; |
| 4094 | bfd_boolean ok; |
| 4095 | file_ptr pos; |
| 4096 | |
| 4097 | type = link_order->type; |
| 4098 | section = NULL; |
| 4099 | addend = link_order->u.reloc.p->addend; |
| 4100 | |
| 4101 | /* We set up an arelent to pass to the backend adjust_reloc_out |
| 4102 | routine. */ |
| 4103 | rel.address = link_order->offset; |
| 4104 | |
| 4105 | rel.howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); |
| 4106 | if (rel.howto == 0) |
| 4107 | { |
| 4108 | bfd_set_error (bfd_error_bad_value); |
| 4109 | return FALSE; |
| 4110 | } |
| 4111 | |
| 4112 | if (type == bfd_section_reloc_link_order) |
| 4113 | { |
| 4114 | section = link_order->u.reloc.p->u.section; |
| 4115 | rel.sym_ptr_ptr = section->symbol_ptr_ptr; |
| 4116 | } |
| 4117 | else |
| 4118 | { |
| 4119 | struct bfd_link_hash_entry *h; |
| 4120 | |
| 4121 | /* Treat a reloc against a defined symbol as though it were |
| 4122 | actually against the section. */ |
| 4123 | h = bfd_wrapped_link_hash_lookup (output_bfd, info, |
| 4124 | link_order->u.reloc.p->u.name, |
| 4125 | FALSE, FALSE, FALSE); |
| 4126 | if (h != NULL |
| 4127 | && (h->type == bfd_link_hash_defined |
| 4128 | || h->type == bfd_link_hash_defweak)) |
| 4129 | { |
| 4130 | type = bfd_section_reloc_link_order; |
| 4131 | section = h->u.def.section->output_section; |
| 4132 | /* It seems that we ought to add the symbol value to the |
| 4133 | addend here, but in practice it has already been added |
| 4134 | because it was passed to constructor_callback. */ |
| 4135 | addend += section->vma + h->u.def.section->output_offset; |
| 4136 | } |
| 4137 | else |
| 4138 | { |
| 4139 | /* We can't set up a reloc against a symbol correctly, |
| 4140 | because we have no asymbol structure. Currently no |
| 4141 | adjust_reloc_out routine cares. */ |
| 4142 | rel.sym_ptr_ptr = NULL; |
| 4143 | } |
| 4144 | } |
| 4145 | |
| 4146 | /* All ECOFF relocs are in-place. Put the addend into the object |
| 4147 | file. */ |
| 4148 | |
| 4149 | BFD_ASSERT (rel.howto->partial_inplace); |
| 4150 | if (addend != 0) |
| 4151 | { |
| 4152 | bfd_size_type size; |
| 4153 | bfd_reloc_status_type rstat; |
| 4154 | bfd_byte *buf; |
| 4155 | |
| 4156 | size = bfd_get_reloc_size (rel.howto); |
| 4157 | buf = bfd_zmalloc (size); |
| 4158 | if (buf == NULL) |
| 4159 | return FALSE; |
| 4160 | rstat = _bfd_relocate_contents (rel.howto, output_bfd, |
| 4161 | (bfd_vma) addend, buf); |
| 4162 | switch (rstat) |
| 4163 | { |
| 4164 | case bfd_reloc_ok: |
| 4165 | break; |
| 4166 | default: |
| 4167 | case bfd_reloc_outofrange: |
| 4168 | abort (); |
| 4169 | case bfd_reloc_overflow: |
| 4170 | if (! ((*info->callbacks->reloc_overflow) |
| 4171 | (info, NULL, |
| 4172 | (link_order->type == bfd_section_reloc_link_order |
| 4173 | ? bfd_section_name (output_bfd, section) |
| 4174 | : link_order->u.reloc.p->u.name), |
| 4175 | rel.howto->name, addend, NULL, |
| 4176 | NULL, (bfd_vma) 0))) |
| 4177 | { |
| 4178 | free (buf); |
| 4179 | return FALSE; |
| 4180 | } |
| 4181 | break; |
| 4182 | } |
| 4183 | ok = bfd_set_section_contents (output_bfd, output_section, (void *) buf, |
| 4184 | (file_ptr) link_order->offset, size); |
| 4185 | free (buf); |
| 4186 | if (! ok) |
| 4187 | return FALSE; |
| 4188 | } |
| 4189 | |
| 4190 | rel.addend = 0; |
| 4191 | |
| 4192 | /* Move the information into an internal_reloc structure. */ |
| 4193 | in.r_vaddr = (rel.address |
| 4194 | + bfd_get_section_vma (output_bfd, output_section)); |
| 4195 | in.r_type = rel.howto->type; |
| 4196 | |
| 4197 | if (type == bfd_symbol_reloc_link_order) |
| 4198 | { |
| 4199 | struct ecoff_link_hash_entry *h; |
| 4200 | |
| 4201 | h = ((struct ecoff_link_hash_entry *) |
| 4202 | bfd_wrapped_link_hash_lookup (output_bfd, info, |
| 4203 | link_order->u.reloc.p->u.name, |
| 4204 | FALSE, FALSE, TRUE)); |
| 4205 | if (h != NULL |
| 4206 | && h->indx != -1) |
| 4207 | in.r_symndx = h->indx; |
| 4208 | else |
| 4209 | { |
| 4210 | if (! ((*info->callbacks->unattached_reloc) |
| 4211 | (info, link_order->u.reloc.p->u.name, NULL, |
| 4212 | NULL, (bfd_vma) 0))) |
| 4213 | return FALSE; |
| 4214 | in.r_symndx = 0; |
| 4215 | } |
| 4216 | in.r_extern = 1; |
| 4217 | } |
| 4218 | else |
| 4219 | { |
| 4220 | const char *name; |
| 4221 | unsigned int i; |
| 4222 | static struct |
| 4223 | { |
| 4224 | const char * name; |
| 4225 | long r_symndx; |
| 4226 | } |
| 4227 | section_symndx [] = |
| 4228 | { |
| 4229 | { _TEXT, RELOC_SECTION_TEXT }, |
| 4230 | { _RDATA, RELOC_SECTION_RDATA }, |
| 4231 | { _DATA, RELOC_SECTION_DATA }, |
| 4232 | { _SDATA, RELOC_SECTION_SDATA }, |
| 4233 | { _SBSS, RELOC_SECTION_SBSS }, |
| 4234 | { _BSS, RELOC_SECTION_BSS }, |
| 4235 | { _INIT, RELOC_SECTION_INIT }, |
| 4236 | { _LIT8, RELOC_SECTION_LIT8 }, |
| 4237 | { _LIT4, RELOC_SECTION_LIT4 }, |
| 4238 | { _XDATA, RELOC_SECTION_XDATA }, |
| 4239 | { _PDATA, RELOC_SECTION_PDATA }, |
| 4240 | { _FINI, RELOC_SECTION_FINI }, |
| 4241 | { _LITA, RELOC_SECTION_LITA }, |
| 4242 | { "*ABS*", RELOC_SECTION_ABS }, |
| 4243 | { _RCONST, RELOC_SECTION_RCONST } |
| 4244 | }; |
| 4245 | |
| 4246 | name = bfd_get_section_name (output_bfd, section); |
| 4247 | |
| 4248 | for (i = 0; i < ARRAY_SIZE (section_symndx); i++) |
| 4249 | if (streq (name, section_symndx[i].name)) |
| 4250 | { |
| 4251 | in.r_symndx = section_symndx[i].r_symndx; |
| 4252 | break; |
| 4253 | } |
| 4254 | |
| 4255 | if (i == ARRAY_SIZE (section_symndx)) |
| 4256 | abort (); |
| 4257 | |
| 4258 | in.r_extern = 0; |
| 4259 | } |
| 4260 | |
| 4261 | /* Let the BFD backend adjust the reloc. */ |
| 4262 | (*ecoff_backend (output_bfd)->adjust_reloc_out) (output_bfd, &rel, &in); |
| 4263 | |
| 4264 | /* Get some memory and swap out the reloc. */ |
| 4265 | external_reloc_size = ecoff_backend (output_bfd)->external_reloc_size; |
| 4266 | rbuf = bfd_malloc (external_reloc_size); |
| 4267 | if (rbuf == NULL) |
| 4268 | return FALSE; |
| 4269 | |
| 4270 | (*ecoff_backend (output_bfd)->swap_reloc_out) (output_bfd, &in, (void *) rbuf); |
| 4271 | |
| 4272 | pos = (output_section->rel_filepos |
| 4273 | + output_section->reloc_count * external_reloc_size); |
| 4274 | ok = (bfd_seek (output_bfd, pos, SEEK_SET) == 0 |
| 4275 | && (bfd_bwrite ((void *) rbuf, external_reloc_size, output_bfd) |
| 4276 | == external_reloc_size)); |
| 4277 | |
| 4278 | if (ok) |
| 4279 | ++output_section->reloc_count; |
| 4280 | |
| 4281 | free (rbuf); |
| 4282 | |
| 4283 | return ok; |
| 4284 | } |
| 4285 | |
| 4286 | /* Put out information for an external symbol. These come only from |
| 4287 | the hash table. */ |
| 4288 | |
| 4289 | static bfd_boolean |
| 4290 | ecoff_link_write_external (struct ecoff_link_hash_entry *h, void * data) |
| 4291 | { |
| 4292 | struct extsym_info *einfo = (struct extsym_info *) data; |
| 4293 | bfd *output_bfd = einfo->abfd; |
| 4294 | bfd_boolean strip; |
| 4295 | |
| 4296 | if (h->root.type == bfd_link_hash_warning) |
| 4297 | { |
| 4298 | h = (struct ecoff_link_hash_entry *) h->root.u.i.link; |
| 4299 | if (h->root.type == bfd_link_hash_new) |
| 4300 | return TRUE; |
| 4301 | } |
| 4302 | |
| 4303 | /* We need to check if this symbol is being stripped. */ |
| 4304 | if (h->root.type == bfd_link_hash_undefined |
| 4305 | || h->root.type == bfd_link_hash_undefweak) |
| 4306 | strip = FALSE; |
| 4307 | else if (einfo->info->strip == strip_all |
| 4308 | || (einfo->info->strip == strip_some |
| 4309 | && bfd_hash_lookup (einfo->info->keep_hash, |
| 4310 | h->root.root.string, |
| 4311 | FALSE, FALSE) == NULL)) |
| 4312 | strip = TRUE; |
| 4313 | else |
| 4314 | strip = FALSE; |
| 4315 | |
| 4316 | if (strip || h->written) |
| 4317 | return TRUE; |
| 4318 | |
| 4319 | if (h->abfd == NULL) |
| 4320 | { |
| 4321 | h->esym.jmptbl = 0; |
| 4322 | h->esym.cobol_main = 0; |
| 4323 | h->esym.weakext = 0; |
| 4324 | h->esym.reserved = 0; |
| 4325 | h->esym.ifd = ifdNil; |
| 4326 | h->esym.asym.value = 0; |
| 4327 | h->esym.asym.st = stGlobal; |
| 4328 | |
| 4329 | if (h->root.type != bfd_link_hash_defined |
| 4330 | && h->root.type != bfd_link_hash_defweak) |
| 4331 | h->esym.asym.sc = scAbs; |
| 4332 | else |
| 4333 | { |
| 4334 | asection *output_section; |
| 4335 | const char *name; |
| 4336 | unsigned int i; |
| 4337 | static struct |
| 4338 | { |
| 4339 | const char * name; |
| 4340 | int sc; |
| 4341 | } |
| 4342 | section_storage_classes [] = |
| 4343 | { |
| 4344 | { _TEXT, scText }, |
| 4345 | { _DATA, scData }, |
| 4346 | { _SDATA, scSData }, |
| 4347 | { _RDATA, scRData }, |
| 4348 | { _BSS, scBss }, |
| 4349 | { _SBSS, scSBss }, |
| 4350 | { _INIT, scInit }, |
| 4351 | { _FINI, scFini }, |
| 4352 | { _PDATA, scPData }, |
| 4353 | { _XDATA, scXData }, |
| 4354 | { _RCONST, scRConst } |
| 4355 | }; |
| 4356 | |
| 4357 | output_section = h->root.u.def.section->output_section; |
| 4358 | name = bfd_section_name (output_section->owner, output_section); |
| 4359 | |
| 4360 | for (i = 0; i < ARRAY_SIZE (section_storage_classes); i++) |
| 4361 | if (streq (name, section_storage_classes[i].name)) |
| 4362 | { |
| 4363 | h->esym.asym.sc = section_storage_classes[i].sc; |
| 4364 | break; |
| 4365 | } |
| 4366 | |
| 4367 | if (i == ARRAY_SIZE (section_storage_classes)) |
| 4368 | h->esym.asym.sc = scAbs; |
| 4369 | } |
| 4370 | |
| 4371 | h->esym.asym.reserved = 0; |
| 4372 | h->esym.asym.index = indexNil; |
| 4373 | } |
| 4374 | else if (h->esym.ifd != -1) |
| 4375 | { |
| 4376 | struct ecoff_debug_info *debug; |
| 4377 | |
| 4378 | /* Adjust the FDR index for the symbol by that used for the |
| 4379 | input BFD. */ |
| 4380 | debug = &ecoff_data (h->abfd)->debug_info; |
| 4381 | BFD_ASSERT (h->esym.ifd >= 0 |
| 4382 | && h->esym.ifd < debug->symbolic_header.ifdMax); |
| 4383 | h->esym.ifd = debug->ifdmap[h->esym.ifd]; |
| 4384 | } |
| 4385 | |
| 4386 | switch (h->root.type) |
| 4387 | { |
| 4388 | default: |
| 4389 | case bfd_link_hash_warning: |
| 4390 | case bfd_link_hash_new: |
| 4391 | abort (); |
| 4392 | case bfd_link_hash_undefined: |
| 4393 | case bfd_link_hash_undefweak: |
| 4394 | if (h->esym.asym.sc != scUndefined |
| 4395 | && h->esym.asym.sc != scSUndefined) |
| 4396 | h->esym.asym.sc = scUndefined; |
| 4397 | break; |
| 4398 | case bfd_link_hash_defined: |
| 4399 | case bfd_link_hash_defweak: |
| 4400 | if (h->esym.asym.sc == scUndefined |
| 4401 | || h->esym.asym.sc == scSUndefined) |
| 4402 | h->esym.asym.sc = scAbs; |
| 4403 | else if (h->esym.asym.sc == scCommon) |
| 4404 | h->esym.asym.sc = scBss; |
| 4405 | else if (h->esym.asym.sc == scSCommon) |
| 4406 | h->esym.asym.sc = scSBss; |
| 4407 | h->esym.asym.value = (h->root.u.def.value |
| 4408 | + h->root.u.def.section->output_section->vma |
| 4409 | + h->root.u.def.section->output_offset); |
| 4410 | break; |
| 4411 | case bfd_link_hash_common: |
| 4412 | if (h->esym.asym.sc != scCommon |
| 4413 | && h->esym.asym.sc != scSCommon) |
| 4414 | h->esym.asym.sc = scCommon; |
| 4415 | h->esym.asym.value = h->root.u.c.size; |
| 4416 | break; |
| 4417 | case bfd_link_hash_indirect: |
| 4418 | /* We ignore these symbols, since the indirected symbol is |
| 4419 | already in the hash table. */ |
| 4420 | return TRUE; |
| 4421 | } |
| 4422 | |
| 4423 | /* bfd_ecoff_debug_one_external uses iextMax to keep track of the |
| 4424 | symbol number. */ |
| 4425 | h->indx = ecoff_data (output_bfd)->debug_info.symbolic_header.iextMax; |
| 4426 | h->written = 1; |
| 4427 | |
| 4428 | return (bfd_ecoff_debug_one_external |
| 4429 | (output_bfd, &ecoff_data (output_bfd)->debug_info, |
| 4430 | &ecoff_backend (output_bfd)->debug_swap, h->root.root.string, |
| 4431 | &h->esym)); |
| 4432 | } |
| 4433 | |
| 4434 | /* ECOFF final link routine. This looks through all the input BFDs |
| 4435 | and gathers together all the debugging information, and then |
| 4436 | processes all the link order information. This may cause it to |
| 4437 | close and reopen some input BFDs; I'll see how bad this is. */ |
| 4438 | |
| 4439 | bfd_boolean |
| 4440 | _bfd_ecoff_bfd_final_link (bfd *abfd, struct bfd_link_info *info) |
| 4441 | { |
| 4442 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); |
| 4443 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; |
| 4444 | HDRR *symhdr; |
| 4445 | void * handle; |
| 4446 | bfd *input_bfd; |
| 4447 | asection *o; |
| 4448 | struct bfd_link_order *p; |
| 4449 | struct extsym_info einfo; |
| 4450 | |
| 4451 | /* We accumulate the debugging information counts in the symbolic |
| 4452 | header. */ |
| 4453 | symhdr = &debug->symbolic_header; |
| 4454 | symhdr->vstamp = 0; |
| 4455 | symhdr->ilineMax = 0; |
| 4456 | symhdr->cbLine = 0; |
| 4457 | symhdr->idnMax = 0; |
| 4458 | symhdr->ipdMax = 0; |
| 4459 | symhdr->isymMax = 0; |
| 4460 | symhdr->ioptMax = 0; |
| 4461 | symhdr->iauxMax = 0; |
| 4462 | symhdr->issMax = 0; |
| 4463 | symhdr->issExtMax = 0; |
| 4464 | symhdr->ifdMax = 0; |
| 4465 | symhdr->crfd = 0; |
| 4466 | symhdr->iextMax = 0; |
| 4467 | |
| 4468 | /* We accumulate the debugging information itself in the debug_info |
| 4469 | structure. */ |
| 4470 | debug->line = NULL; |
| 4471 | debug->external_dnr = NULL; |
| 4472 | debug->external_pdr = NULL; |
| 4473 | debug->external_sym = NULL; |
| 4474 | debug->external_opt = NULL; |
| 4475 | debug->external_aux = NULL; |
| 4476 | debug->ss = NULL; |
| 4477 | debug->ssext = debug->ssext_end = NULL; |
| 4478 | debug->external_fdr = NULL; |
| 4479 | debug->external_rfd = NULL; |
| 4480 | debug->external_ext = debug->external_ext_end = NULL; |
| 4481 | |
| 4482 | handle = bfd_ecoff_debug_init (abfd, debug, &backend->debug_swap, info); |
| 4483 | if (handle == NULL) |
| 4484 | return FALSE; |
| 4485 | |
| 4486 | /* Accumulate the debugging symbols from each input BFD. */ |
| 4487 | for (input_bfd = info->input_bfds; |
| 4488 | input_bfd != NULL; |
| 4489 | input_bfd = input_bfd->link_next) |
| 4490 | { |
| 4491 | bfd_boolean ret; |
| 4492 | |
| 4493 | if (bfd_get_flavour (input_bfd) == bfd_target_ecoff_flavour) |
| 4494 | { |
| 4495 | /* Arbitrarily set the symbolic header vstamp to the vstamp |
| 4496 | of the first object file in the link. */ |
| 4497 | if (symhdr->vstamp == 0) |
| 4498 | symhdr->vstamp |
| 4499 | = ecoff_data (input_bfd)->debug_info.symbolic_header.vstamp; |
| 4500 | ret = ecoff_final_link_debug_accumulate (abfd, input_bfd, info, |
| 4501 | handle); |
| 4502 | } |
| 4503 | else |
| 4504 | ret = bfd_ecoff_debug_accumulate_other (handle, abfd, |
| 4505 | debug, &backend->debug_swap, |
| 4506 | input_bfd, info); |
| 4507 | if (! ret) |
| 4508 | return FALSE; |
| 4509 | |
| 4510 | /* Combine the register masks. */ |
| 4511 | ecoff_data (abfd)->gprmask |= ecoff_data (input_bfd)->gprmask; |
| 4512 | ecoff_data (abfd)->fprmask |= ecoff_data (input_bfd)->fprmask; |
| 4513 | ecoff_data (abfd)->cprmask[0] |= ecoff_data (input_bfd)->cprmask[0]; |
| 4514 | ecoff_data (abfd)->cprmask[1] |= ecoff_data (input_bfd)->cprmask[1]; |
| 4515 | ecoff_data (abfd)->cprmask[2] |= ecoff_data (input_bfd)->cprmask[2]; |
| 4516 | ecoff_data (abfd)->cprmask[3] |= ecoff_data (input_bfd)->cprmask[3]; |
| 4517 | } |
| 4518 | |
| 4519 | /* Write out the external symbols. */ |
| 4520 | einfo.abfd = abfd; |
| 4521 | einfo.info = info; |
| 4522 | ecoff_link_hash_traverse (ecoff_hash_table (info), |
| 4523 | ecoff_link_write_external, |
| 4524 | (void *) &einfo); |
| 4525 | |
| 4526 | if (info->relocatable) |
| 4527 | { |
| 4528 | /* We need to make a pass over the link_orders to count up the |
| 4529 | number of relocations we will need to output, so that we know |
| 4530 | how much space they will take up. */ |
| 4531 | for (o = abfd->sections; o != NULL; o = o->next) |
| 4532 | { |
| 4533 | o->reloc_count = 0; |
| 4534 | for (p = o->map_head.link_order; |
| 4535 | p != NULL; |
| 4536 | p = p->next) |
| 4537 | if (p->type == bfd_indirect_link_order) |
| 4538 | o->reloc_count += p->u.indirect.section->reloc_count; |
| 4539 | else if (p->type == bfd_section_reloc_link_order |
| 4540 | || p->type == bfd_symbol_reloc_link_order) |
| 4541 | ++o->reloc_count; |
| 4542 | } |
| 4543 | } |
| 4544 | |
| 4545 | /* Compute the reloc and symbol file positions. */ |
| 4546 | ecoff_compute_reloc_file_positions (abfd); |
| 4547 | |
| 4548 | /* Write out the debugging information. */ |
| 4549 | if (! bfd_ecoff_write_accumulated_debug (handle, abfd, debug, |
| 4550 | &backend->debug_swap, info, |
| 4551 | ecoff_data (abfd)->sym_filepos)) |
| 4552 | return FALSE; |
| 4553 | |
| 4554 | bfd_ecoff_debug_free (handle, abfd, debug, &backend->debug_swap, info); |
| 4555 | |
| 4556 | if (info->relocatable) |
| 4557 | { |
| 4558 | /* Now reset the reloc_count field of the sections in the output |
| 4559 | BFD to 0, so that we can use them to keep track of how many |
| 4560 | relocs we have output thus far. */ |
| 4561 | for (o = abfd->sections; o != NULL; o = o->next) |
| 4562 | o->reloc_count = 0; |
| 4563 | } |
| 4564 | |
| 4565 | /* Get a value for the GP register. */ |
| 4566 | if (ecoff_data (abfd)->gp == 0) |
| 4567 | { |
| 4568 | struct bfd_link_hash_entry *h; |
| 4569 | |
| 4570 | h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE); |
| 4571 | if (h != NULL |
| 4572 | && h->type == bfd_link_hash_defined) |
| 4573 | ecoff_data (abfd)->gp = (h->u.def.value |
| 4574 | + h->u.def.section->output_section->vma |
| 4575 | + h->u.def.section->output_offset); |
| 4576 | else if (info->relocatable) |
| 4577 | { |
| 4578 | bfd_vma lo; |
| 4579 | |
| 4580 | /* Make up a value. */ |
| 4581 | lo = (bfd_vma) -1; |
| 4582 | for (o = abfd->sections; o != NULL; o = o->next) |
| 4583 | { |
| 4584 | if (o->vma < lo |
| 4585 | && (streq (o->name, _SBSS) |
| 4586 | || streq (o->name, _SDATA) |
| 4587 | || streq (o->name, _LIT4) |
| 4588 | || streq (o->name, _LIT8) |
| 4589 | || streq (o->name, _LITA))) |
| 4590 | lo = o->vma; |
| 4591 | } |
| 4592 | ecoff_data (abfd)->gp = lo + 0x8000; |
| 4593 | } |
| 4594 | else |
| 4595 | { |
| 4596 | /* If the relocate_section function needs to do a reloc |
| 4597 | involving the GP value, it should make a reloc_dangerous |
| 4598 | callback to warn that GP is not defined. */ |
| 4599 | } |
| 4600 | } |
| 4601 | |
| 4602 | for (o = abfd->sections; o != NULL; o = o->next) |
| 4603 | { |
| 4604 | for (p = o->map_head.link_order; |
| 4605 | p != NULL; |
| 4606 | p = p->next) |
| 4607 | { |
| 4608 | if (p->type == bfd_indirect_link_order |
| 4609 | && (bfd_get_flavour (p->u.indirect.section->owner) |
| 4610 | == bfd_target_ecoff_flavour)) |
| 4611 | { |
| 4612 | if (! ecoff_indirect_link_order (abfd, info, o, p)) |
| 4613 | return FALSE; |
| 4614 | } |
| 4615 | else if (p->type == bfd_section_reloc_link_order |
| 4616 | || p->type == bfd_symbol_reloc_link_order) |
| 4617 | { |
| 4618 | if (! ecoff_reloc_link_order (abfd, info, o, p)) |
| 4619 | return FALSE; |
| 4620 | } |
| 4621 | else |
| 4622 | { |
| 4623 | if (! _bfd_default_link_order (abfd, info, o, p)) |
| 4624 | return FALSE; |
| 4625 | } |
| 4626 | } |
| 4627 | } |
| 4628 | |
| 4629 | bfd_get_symcount (abfd) = symhdr->iextMax + symhdr->isymMax; |
| 4630 | |
| 4631 | ecoff_data (abfd)->linker = TRUE; |
| 4632 | |
| 4633 | return TRUE; |
| 4634 | } |