| 1 | /* BFD back-end for Intel 960 COFF files. |
| 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1999, 2000, 2001, |
| 3 | 2002, 2003, 2004 Free Software Foundation, Inc. |
| 4 | Written by Cygnus Support. |
| 5 | |
| 6 | This file is part of BFD, the Binary File Descriptor library. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 21 | |
| 22 | #define I960 1 |
| 23 | #define BADMAG(x) I960BADMAG(x) |
| 24 | |
| 25 | #include "bfd.h" |
| 26 | #include "sysdep.h" |
| 27 | #include "libbfd.h" |
| 28 | #include "coff/i960.h" |
| 29 | #include "coff/internal.h" |
| 30 | #include "libcoff.h" /* to allow easier abstraction-breaking */ |
| 31 | |
| 32 | static bfd_boolean coff_i960_is_local_label_name |
| 33 | PARAMS ((bfd *, const char *)); |
| 34 | static bfd_reloc_status_type optcall_callback |
| 35 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| 36 | static bfd_reloc_status_type coff_i960_relocate |
| 37 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| 38 | static reloc_howto_type *coff_i960_reloc_type_lookup |
| 39 | PARAMS ((bfd *, bfd_reloc_code_real_type)); |
| 40 | static bfd_boolean coff_i960_start_final_link |
| 41 | PARAMS ((bfd *, struct bfd_link_info *)); |
| 42 | static bfd_boolean coff_i960_relocate_section |
| 43 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
| 44 | struct internal_reloc *, struct internal_syment *, asection **)); |
| 45 | static bfd_boolean coff_i960_adjust_symndx |
| 46 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, |
| 47 | struct internal_reloc *, bfd_boolean *)); |
| 48 | |
| 49 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) |
| 50 | #define COFF_ALIGN_IN_SECTION_HEADER 1 |
| 51 | |
| 52 | #define GET_SCNHDR_ALIGN H_GET_32 |
| 53 | #define PUT_SCNHDR_ALIGN H_PUT_32 |
| 54 | |
| 55 | /* The i960 does not support an MMU, so COFF_PAGE_SIZE can be |
| 56 | arbitrarily small. */ |
| 57 | #define COFF_PAGE_SIZE 1 |
| 58 | |
| 59 | #define COFF_LONG_FILENAMES |
| 60 | |
| 61 | /* This set of local label names is taken from gas. */ |
| 62 | |
| 63 | static bfd_boolean |
| 64 | coff_i960_is_local_label_name (abfd, name) |
| 65 | bfd *abfd ATTRIBUTE_UNUSED; |
| 66 | const char *name; |
| 67 | { |
| 68 | return (name[0] == 'L' |
| 69 | || (name[0] == '.' |
| 70 | && (name[1] == 'C' |
| 71 | || name[1] == 'I' |
| 72 | || name[1] == '.'))); |
| 73 | } |
| 74 | |
| 75 | /* This is just like the usual CALC_ADDEND, but it includes the |
| 76 | section VMA for PC relative relocs. */ |
| 77 | #ifndef CALC_ADDEND |
| 78 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ |
| 79 | { \ |
| 80 | coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ |
| 81 | if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ |
| 82 | coffsym = (obj_symbols (abfd) \ |
| 83 | + (cache_ptr->sym_ptr_ptr - symbols)); \ |
| 84 | else if (ptr) \ |
| 85 | coffsym = coff_symbol_from (abfd, ptr); \ |
| 86 | if (coffsym != (coff_symbol_type *) NULL \ |
| 87 | && coffsym->native->u.syment.n_scnum == 0) \ |
| 88 | cache_ptr->addend = 0; \ |
| 89 | else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ |
| 90 | && ptr->section != (asection *) NULL) \ |
| 91 | cache_ptr->addend = - (ptr->section->vma + ptr->value); \ |
| 92 | else \ |
| 93 | cache_ptr->addend = 0; \ |
| 94 | if (ptr && (reloc.r_type == 25 || reloc.r_type == 27)) \ |
| 95 | cache_ptr->addend += asect->vma; \ |
| 96 | } |
| 97 | #endif |
| 98 | |
| 99 | #define CALLS 0x66003800 /* Template for 'calls' instruction */ |
| 100 | #define BAL 0x0b000000 /* Template for 'bal' instruction */ |
| 101 | #define BAL_MASK 0x00ffffff |
| 102 | |
| 103 | static bfd_reloc_status_type |
| 104 | optcall_callback (abfd, reloc_entry, symbol_in, data, |
| 105 | input_section, ignore_bfd, error_message) |
| 106 | bfd *abfd; |
| 107 | arelent *reloc_entry; |
| 108 | asymbol *symbol_in; |
| 109 | PTR data; |
| 110 | asection *input_section; |
| 111 | bfd *ignore_bfd ATTRIBUTE_UNUSED; |
| 112 | char **error_message; |
| 113 | { |
| 114 | /* This item has already been relocated correctly, but we may be |
| 115 | * able to patch in yet better code - done by digging out the |
| 116 | * correct info on this symbol */ |
| 117 | bfd_reloc_status_type result; |
| 118 | coff_symbol_type *cs = coffsymbol(symbol_in); |
| 119 | |
| 120 | /* Don't do anything with symbols which aren't tied up yet, |
| 121 | except move the reloc. */ |
| 122 | if (bfd_is_und_section (cs->symbol.section)) { |
| 123 | reloc_entry->address += input_section->output_offset; |
| 124 | return bfd_reloc_ok; |
| 125 | } |
| 126 | |
| 127 | /* So the target symbol has to be of coff type, and the symbol |
| 128 | has to have the correct native information within it */ |
| 129 | if ((bfd_asymbol_flavour(&cs->symbol) != bfd_target_coff_flavour) |
| 130 | || (cs->native == (combined_entry_type *)NULL)) |
| 131 | { |
| 132 | /* This is interesting, consider the case where we're outputting coff |
| 133 | from a mix n match input, linking from coff to a symbol defined in a |
| 134 | bout file will cause this match to be true. Should I complain? This |
| 135 | will only work if the bout symbol is non leaf. */ |
| 136 | *error_message = |
| 137 | (char *) _("uncertain calling convention for non-COFF symbol"); |
| 138 | result = bfd_reloc_dangerous; |
| 139 | } |
| 140 | else |
| 141 | { |
| 142 | switch (cs->native->u.syment.n_sclass) |
| 143 | { |
| 144 | case C_LEAFSTAT: |
| 145 | case C_LEAFEXT: |
| 146 | /* This is a call to a leaf procedure, replace instruction with a bal |
| 147 | to the correct location. */ |
| 148 | { |
| 149 | union internal_auxent *aux = &((cs->native+2)->u.auxent); |
| 150 | int word = bfd_get_32 (abfd, (bfd_byte *)data + reloc_entry->address); |
| 151 | int olf = (aux->x_bal.x_balntry - cs->native->u.syment.n_value); |
| 152 | BFD_ASSERT(cs->native->u.syment.n_numaux==2); |
| 153 | |
| 154 | /* We replace the original call instruction with a bal to |
| 155 | the bal entry point - the offset of which is described in |
| 156 | the 2nd auxent of the original symbol. We keep the native |
| 157 | sym and auxents untouched, so the delta between the two |
| 158 | is the offset of the bal entry point. */ |
| 159 | word = ((word + olf) & BAL_MASK) | BAL; |
| 160 | bfd_put_32 (abfd, (bfd_vma) word, |
| 161 | (bfd_byte *) data + reloc_entry->address); |
| 162 | } |
| 163 | result = bfd_reloc_ok; |
| 164 | break; |
| 165 | case C_SCALL: |
| 166 | /* This is a call to a system call, replace with a calls to # */ |
| 167 | BFD_ASSERT(0); |
| 168 | result = bfd_reloc_ok; |
| 169 | break; |
| 170 | default: |
| 171 | result = bfd_reloc_ok; |
| 172 | break; |
| 173 | } |
| 174 | } |
| 175 | return result; |
| 176 | } |
| 177 | |
| 178 | /* i960 COFF is used by VxWorks 5.1. However, VxWorks 5.1 does not |
| 179 | appear to correctly handle a reloc against a symbol defined in the |
| 180 | same object file. It appears to simply discard such relocs, rather |
| 181 | than adding their values into the object file. We handle this here |
| 182 | by converting all relocs against defined symbols into relocs |
| 183 | against the section symbol, when generating a relocatable output |
| 184 | file. |
| 185 | |
| 186 | Note that this function is only called if we are not using the COFF |
| 187 | specific backend linker. It only does something when doing a |
| 188 | relocatable link, which will almost certainly fail when not |
| 189 | generating COFF i960 output, so this function is actually no longer |
| 190 | useful. It was used before this target was converted to use the |
| 191 | COFF specific backend linker. */ |
| 192 | |
| 193 | static bfd_reloc_status_type |
| 194 | coff_i960_relocate (abfd, reloc_entry, symbol, data, input_section, |
| 195 | output_bfd, error_message) |
| 196 | bfd *abfd; |
| 197 | arelent *reloc_entry; |
| 198 | asymbol *symbol; |
| 199 | PTR data ATTRIBUTE_UNUSED; |
| 200 | asection *input_section ATTRIBUTE_UNUSED; |
| 201 | bfd *output_bfd; |
| 202 | char **error_message ATTRIBUTE_UNUSED; |
| 203 | { |
| 204 | asection *osec; |
| 205 | |
| 206 | if (output_bfd == NULL) |
| 207 | { |
| 208 | /* Not generating relocatable output file. */ |
| 209 | return bfd_reloc_continue; |
| 210 | } |
| 211 | |
| 212 | if (bfd_is_und_section (bfd_get_section (symbol))) |
| 213 | { |
| 214 | /* Symbol is not defined, so no need to worry about it. */ |
| 215 | return bfd_reloc_continue; |
| 216 | } |
| 217 | |
| 218 | if (bfd_is_com_section (bfd_get_section (symbol))) |
| 219 | { |
| 220 | /* I don't really know what the right action is for a common |
| 221 | symbol. */ |
| 222 | return bfd_reloc_continue; |
| 223 | } |
| 224 | |
| 225 | /* Convert the reloc to use the section symbol. FIXME: This method |
| 226 | is ridiculous. */ |
| 227 | osec = bfd_get_section (symbol)->output_section; |
| 228 | if (coff_section_data (output_bfd, osec) != NULL |
| 229 | && coff_section_data (output_bfd, osec)->tdata != NULL) |
| 230 | reloc_entry->sym_ptr_ptr = |
| 231 | (asymbol **) coff_section_data (output_bfd, osec)->tdata; |
| 232 | else |
| 233 | { |
| 234 | const char *sec_name; |
| 235 | asymbol **syms, **sym_end; |
| 236 | |
| 237 | sec_name = bfd_get_section_name (output_bfd, osec); |
| 238 | syms = bfd_get_outsymbols (output_bfd); |
| 239 | sym_end = syms + bfd_get_symcount (output_bfd); |
| 240 | for (; syms < sym_end; syms++) |
| 241 | { |
| 242 | if (bfd_asymbol_name (*syms) != NULL |
| 243 | && (*syms)->value == 0 |
| 244 | && strcmp ((*syms)->section->output_section->name, |
| 245 | sec_name) == 0) |
| 246 | break; |
| 247 | } |
| 248 | |
| 249 | if (syms >= sym_end) |
| 250 | abort (); |
| 251 | |
| 252 | reloc_entry->sym_ptr_ptr = syms; |
| 253 | |
| 254 | if (coff_section_data (output_bfd, osec) == NULL) |
| 255 | { |
| 256 | bfd_size_type amt = sizeof (struct coff_section_tdata); |
| 257 | osec->used_by_bfd = (PTR) bfd_zalloc (abfd, amt); |
| 258 | if (osec->used_by_bfd == NULL) |
| 259 | return bfd_reloc_overflow; |
| 260 | } |
| 261 | coff_section_data (output_bfd, osec)->tdata = (PTR) syms; |
| 262 | } |
| 263 | |
| 264 | /* Let bfd_perform_relocation do its thing, which will include |
| 265 | stuffing the symbol addend into the object file. */ |
| 266 | return bfd_reloc_continue; |
| 267 | } |
| 268 | |
| 269 | static reloc_howto_type howto_rellong = |
| 270 | HOWTO ((unsigned int) R_RELLONG, 0, 2, 32,FALSE, 0, |
| 271 | complain_overflow_bitfield, coff_i960_relocate,"rellong", TRUE, |
| 272 | 0xffffffff, 0xffffffff, 0); |
| 273 | static reloc_howto_type howto_iprmed = |
| 274 | HOWTO (R_IPRMED, 0, 2, 24,TRUE,0, complain_overflow_signed, |
| 275 | coff_i960_relocate, "iprmed ", TRUE, 0x00ffffff, 0x00ffffff, 0); |
| 276 | static reloc_howto_type howto_optcall = |
| 277 | HOWTO (R_OPTCALL, 0,2,24,TRUE,0, complain_overflow_signed, |
| 278 | optcall_callback, "optcall", TRUE, 0x00ffffff, 0x00ffffff, 0); |
| 279 | |
| 280 | static reloc_howto_type * |
| 281 | coff_i960_reloc_type_lookup (abfd, code) |
| 282 | bfd *abfd ATTRIBUTE_UNUSED; |
| 283 | bfd_reloc_code_real_type code; |
| 284 | { |
| 285 | switch (code) |
| 286 | { |
| 287 | default: |
| 288 | return 0; |
| 289 | case BFD_RELOC_I960_CALLJ: |
| 290 | return &howto_optcall; |
| 291 | case BFD_RELOC_32: |
| 292 | case BFD_RELOC_CTOR: |
| 293 | return &howto_rellong; |
| 294 | case BFD_RELOC_24_PCREL: |
| 295 | return &howto_iprmed; |
| 296 | } |
| 297 | } |
| 298 | |
| 299 | /* The real code is in coffcode.h */ |
| 300 | |
| 301 | #define RTYPE2HOWTO(cache_ptr, dst) \ |
| 302 | { \ |
| 303 | reloc_howto_type *howto_ptr; \ |
| 304 | switch ((dst)->r_type) { \ |
| 305 | case 17: howto_ptr = &howto_rellong; break; \ |
| 306 | case 25: howto_ptr = &howto_iprmed; break; \ |
| 307 | case 27: howto_ptr = &howto_optcall; break; \ |
| 308 | default: howto_ptr = 0; break; \ |
| 309 | } \ |
| 310 | (cache_ptr)->howto = howto_ptr; \ |
| 311 | } |
| 312 | |
| 313 | /* i960 COFF is used by VxWorks 5.1. However, VxWorks 5.1 does not |
| 314 | appear to correctly handle a reloc against a symbol defined in the |
| 315 | same object file. It appears to simply discard such relocs, rather |
| 316 | than adding their values into the object file. We handle this by |
| 317 | converting all relocs against global symbols into relocs against |
| 318 | internal symbols at the start of the section. This routine is |
| 319 | called at the start of the linking process, and it creates the |
| 320 | necessary symbols. */ |
| 321 | |
| 322 | static bfd_boolean |
| 323 | coff_i960_start_final_link (abfd, info) |
| 324 | bfd *abfd; |
| 325 | struct bfd_link_info *info; |
| 326 | { |
| 327 | bfd_size_type symesz = bfd_coff_symesz (abfd); |
| 328 | asection *o; |
| 329 | bfd_byte *esym; |
| 330 | |
| 331 | if (! info->relocatable) |
| 332 | return TRUE; |
| 333 | |
| 334 | esym = (bfd_byte *) bfd_malloc (symesz); |
| 335 | if (esym == NULL) |
| 336 | return FALSE; |
| 337 | |
| 338 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0) |
| 339 | return FALSE; |
| 340 | |
| 341 | for (o = abfd->sections; o != NULL; o = o->next) |
| 342 | { |
| 343 | struct internal_syment isym; |
| 344 | |
| 345 | strncpy (isym._n._n_name, o->name, SYMNMLEN); |
| 346 | isym.n_value = 0; |
| 347 | isym.n_scnum = o->target_index; |
| 348 | isym.n_type = T_NULL; |
| 349 | isym.n_sclass = C_STAT; |
| 350 | isym.n_numaux = 0; |
| 351 | |
| 352 | bfd_coff_swap_sym_out (abfd, (PTR) &isym, (PTR) esym); |
| 353 | |
| 354 | if (bfd_bwrite (esym, symesz, abfd) != symesz) |
| 355 | { |
| 356 | free (esym); |
| 357 | return FALSE; |
| 358 | } |
| 359 | |
| 360 | obj_raw_syment_count (abfd) += 1; |
| 361 | } |
| 362 | |
| 363 | free (esym); |
| 364 | |
| 365 | return TRUE; |
| 366 | } |
| 367 | |
| 368 | /* The reloc processing routine for the optimized COFF linker. */ |
| 369 | |
| 370 | static bfd_boolean |
| 371 | coff_i960_relocate_section (output_bfd, info, input_bfd, input_section, |
| 372 | contents, relocs, syms, sections) |
| 373 | bfd *output_bfd ATTRIBUTE_UNUSED; |
| 374 | struct bfd_link_info *info; |
| 375 | bfd *input_bfd; |
| 376 | asection *input_section; |
| 377 | bfd_byte *contents; |
| 378 | struct internal_reloc *relocs; |
| 379 | struct internal_syment *syms; |
| 380 | asection **sections; |
| 381 | { |
| 382 | struct internal_reloc *rel; |
| 383 | struct internal_reloc *relend; |
| 384 | |
| 385 | rel = relocs; |
| 386 | relend = rel + input_section->reloc_count; |
| 387 | for (; rel < relend; rel++) |
| 388 | { |
| 389 | long symndx; |
| 390 | struct coff_link_hash_entry *h; |
| 391 | struct internal_syment *sym; |
| 392 | bfd_vma addend; |
| 393 | bfd_vma val; |
| 394 | reloc_howto_type *howto; |
| 395 | bfd_reloc_status_type rstat = bfd_reloc_ok; |
| 396 | bfd_boolean done; |
| 397 | |
| 398 | symndx = rel->r_symndx; |
| 399 | |
| 400 | if (symndx == -1) |
| 401 | { |
| 402 | h = NULL; |
| 403 | sym = NULL; |
| 404 | } |
| 405 | else |
| 406 | { |
| 407 | h = obj_coff_sym_hashes (input_bfd)[symndx]; |
| 408 | sym = syms + symndx; |
| 409 | } |
| 410 | |
| 411 | if (sym != NULL && sym->n_scnum != 0) |
| 412 | addend = - sym->n_value; |
| 413 | else |
| 414 | addend = 0; |
| 415 | |
| 416 | switch (rel->r_type) |
| 417 | { |
| 418 | case 17: howto = &howto_rellong; break; |
| 419 | case 25: howto = &howto_iprmed; break; |
| 420 | case 27: howto = &howto_optcall; break; |
| 421 | default: |
| 422 | bfd_set_error (bfd_error_bad_value); |
| 423 | return FALSE; |
| 424 | } |
| 425 | |
| 426 | val = 0; |
| 427 | |
| 428 | if (h == NULL) |
| 429 | { |
| 430 | asection *sec; |
| 431 | |
| 432 | if (symndx == -1) |
| 433 | { |
| 434 | sec = bfd_abs_section_ptr; |
| 435 | val = 0; |
| 436 | } |
| 437 | else |
| 438 | { |
| 439 | sec = sections[symndx]; |
| 440 | val = (sec->output_section->vma |
| 441 | + sec->output_offset |
| 442 | + sym->n_value |
| 443 | - sec->vma); |
| 444 | } |
| 445 | } |
| 446 | else |
| 447 | { |
| 448 | if (h->root.type == bfd_link_hash_defined |
| 449 | || h->root.type == bfd_link_hash_defweak) |
| 450 | { |
| 451 | asection *sec; |
| 452 | |
| 453 | sec = h->root.u.def.section; |
| 454 | val = (h->root.u.def.value |
| 455 | + sec->output_section->vma |
| 456 | + sec->output_offset); |
| 457 | } |
| 458 | else if (! info->relocatable) |
| 459 | { |
| 460 | if (! ((*info->callbacks->undefined_symbol) |
| 461 | (info, h->root.root.string, input_bfd, input_section, |
| 462 | rel->r_vaddr - input_section->vma, TRUE))) |
| 463 | return FALSE; |
| 464 | } |
| 465 | } |
| 466 | |
| 467 | done = FALSE; |
| 468 | |
| 469 | if (howto->type == R_OPTCALL && ! info->relocatable && symndx != -1) |
| 470 | { |
| 471 | int class; |
| 472 | |
| 473 | if (h != NULL) |
| 474 | class = h->class; |
| 475 | else |
| 476 | class = sym->n_sclass; |
| 477 | |
| 478 | switch (class) |
| 479 | { |
| 480 | case C_NULL: |
| 481 | /* This symbol is apparently not from a COFF input file. |
| 482 | We warn, and then assume that it is not a leaf |
| 483 | function. */ |
| 484 | if (! ((*info->callbacks->reloc_dangerous) |
| 485 | (info, |
| 486 | _("uncertain calling convention for non-COFF symbol"), |
| 487 | input_bfd, input_section, |
| 488 | rel->r_vaddr - input_section->vma))) |
| 489 | return FALSE; |
| 490 | break; |
| 491 | case C_LEAFSTAT: |
| 492 | case C_LEAFEXT: |
| 493 | /* This is a call to a leaf procedure; use the bal |
| 494 | instruction. */ |
| 495 | { |
| 496 | long olf; |
| 497 | unsigned long word; |
| 498 | |
| 499 | if (h != NULL) |
| 500 | { |
| 501 | BFD_ASSERT (h->numaux == 2); |
| 502 | olf = h->aux[1].x_bal.x_balntry; |
| 503 | } |
| 504 | else |
| 505 | { |
| 506 | bfd_byte *esyms; |
| 507 | union internal_auxent aux; |
| 508 | |
| 509 | BFD_ASSERT (sym->n_numaux == 2); |
| 510 | esyms = (bfd_byte *) obj_coff_external_syms (input_bfd); |
| 511 | esyms += (symndx + 2) * bfd_coff_symesz (input_bfd); |
| 512 | bfd_coff_swap_aux_in (input_bfd, (PTR) esyms, sym->n_type, |
| 513 | sym->n_sclass, 1, sym->n_numaux, |
| 514 | (PTR) &aux); |
| 515 | olf = aux.x_bal.x_balntry; |
| 516 | } |
| 517 | |
| 518 | word = bfd_get_32 (input_bfd, |
| 519 | (contents |
| 520 | + (rel->r_vaddr - input_section->vma))); |
| 521 | word = ((word + olf - val) & BAL_MASK) | BAL; |
| 522 | bfd_put_32 (input_bfd, |
| 523 | (bfd_vma) word, |
| 524 | contents + (rel->r_vaddr - input_section->vma)); |
| 525 | done = TRUE; |
| 526 | } |
| 527 | break; |
| 528 | case C_SCALL: |
| 529 | BFD_ASSERT (0); |
| 530 | break; |
| 531 | } |
| 532 | } |
| 533 | |
| 534 | if (! done) |
| 535 | { |
| 536 | if (howto->pc_relative) |
| 537 | addend += input_section->vma; |
| 538 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section, |
| 539 | contents, |
| 540 | rel->r_vaddr - input_section->vma, |
| 541 | val, addend); |
| 542 | } |
| 543 | |
| 544 | switch (rstat) |
| 545 | { |
| 546 | default: |
| 547 | abort (); |
| 548 | case bfd_reloc_ok: |
| 549 | break; |
| 550 | case bfd_reloc_overflow: |
| 551 | { |
| 552 | const char *name; |
| 553 | char buf[SYMNMLEN + 1]; |
| 554 | |
| 555 | if (symndx == -1) |
| 556 | name = "*ABS*"; |
| 557 | else if (h != NULL) |
| 558 | name = NULL; |
| 559 | else |
| 560 | { |
| 561 | name = _bfd_coff_internal_syment_name (input_bfd, sym, buf); |
| 562 | if (name == NULL) |
| 563 | return FALSE; |
| 564 | } |
| 565 | |
| 566 | if (! ((*info->callbacks->reloc_overflow) |
| 567 | (info, (h ? &h->root : NULL), name, howto->name, |
| 568 | (bfd_vma) 0, input_bfd, input_section, |
| 569 | rel->r_vaddr - input_section->vma))) |
| 570 | return FALSE; |
| 571 | } |
| 572 | } |
| 573 | } |
| 574 | |
| 575 | return TRUE; |
| 576 | } |
| 577 | |
| 578 | /* Adjust the symbol index of any reloc against a global symbol to |
| 579 | instead be a reloc against the internal symbol we created specially |
| 580 | for the section. */ |
| 581 | |
| 582 | static bfd_boolean |
| 583 | coff_i960_adjust_symndx (obfd, info, ibfd, sec, irel, adjustedp) |
| 584 | bfd *obfd ATTRIBUTE_UNUSED; |
| 585 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| 586 | bfd *ibfd; |
| 587 | asection *sec ATTRIBUTE_UNUSED; |
| 588 | struct internal_reloc *irel; |
| 589 | bfd_boolean *adjustedp; |
| 590 | { |
| 591 | struct coff_link_hash_entry *h; |
| 592 | |
| 593 | *adjustedp = FALSE; |
| 594 | |
| 595 | h = obj_coff_sym_hashes (ibfd)[irel->r_symndx]; |
| 596 | if (h == NULL |
| 597 | || (h->root.type != bfd_link_hash_defined |
| 598 | && h->root.type != bfd_link_hash_defweak)) |
| 599 | return TRUE; |
| 600 | |
| 601 | irel->r_symndx = h->root.u.def.section->output_section->target_index - 1; |
| 602 | *adjustedp = TRUE; |
| 603 | |
| 604 | return TRUE; |
| 605 | } |
| 606 | |
| 607 | #define coff_bfd_is_local_label_name coff_i960_is_local_label_name |
| 608 | |
| 609 | #define coff_start_final_link coff_i960_start_final_link |
| 610 | |
| 611 | #define coff_relocate_section coff_i960_relocate_section |
| 612 | |
| 613 | #define coff_adjust_symndx coff_i960_adjust_symndx |
| 614 | |
| 615 | #define coff_bfd_reloc_type_lookup coff_i960_reloc_type_lookup |
| 616 | |
| 617 | #include "coffcode.h" |
| 618 | |
| 619 | extern const bfd_target icoff_big_vec; |
| 620 | |
| 621 | CREATE_LITTLE_COFF_TARGET_VEC (icoff_little_vec, "coff-Intel-little", 0, 0, '_', & icoff_big_vec, COFF_SWAP_TABLE) |
| 622 | |
| 623 | const bfd_target icoff_big_vec = |
| 624 | { |
| 625 | "coff-Intel-big", /* name */ |
| 626 | bfd_target_coff_flavour, |
| 627 | BFD_ENDIAN_LITTLE, /* data byte order is little */ |
| 628 | BFD_ENDIAN_BIG, /* header byte order is big */ |
| 629 | |
| 630 | (HAS_RELOC | EXEC_P | /* object flags */ |
| 631 | HAS_LINENO | HAS_DEBUG | |
| 632 | HAS_SYMS | HAS_LOCALS | WP_TEXT), |
| 633 | |
| 634 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
| 635 | '_', /* leading underscore */ |
| 636 | '/', /* ar_pad_char */ |
| 637 | 15, /* ar_max_namelen */ |
| 638 | |
| 639 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| 640 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| 641 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ |
| 642 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 643 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 644 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ |
| 645 | |
| 646 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
| 647 | bfd_generic_archive_p, _bfd_dummy_target}, |
| 648 | {bfd_false, coff_mkobject, /* bfd_set_format */ |
| 649 | _bfd_generic_mkarchive, bfd_false}, |
| 650 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ |
| 651 | _bfd_write_archive_contents, bfd_false}, |
| 652 | |
| 653 | BFD_JUMP_TABLE_GENERIC (coff), |
| 654 | BFD_JUMP_TABLE_COPY (coff), |
| 655 | BFD_JUMP_TABLE_CORE (_bfd_nocore), |
| 656 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), |
| 657 | BFD_JUMP_TABLE_SYMBOLS (coff), |
| 658 | BFD_JUMP_TABLE_RELOCS (coff), |
| 659 | BFD_JUMP_TABLE_WRITE (coff), |
| 660 | BFD_JUMP_TABLE_LINK (coff), |
| 661 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), |
| 662 | |
| 663 | & icoff_little_vec, |
| 664 | |
| 665 | COFF_SWAP_TABLE |
| 666 | }; |