| 1 | /* BFD back-end for OpenRISC 1000 COFF binaries. |
| 2 | Copyright 2002, 2003 Free Software Foundation, Inc. |
| 3 | Contributed by Ivan Guzvinec <ivang@opencores.org> |
| 4 | |
| 5 | This file is part of BFD, the Binary File Descriptor library. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | #define OR32 1 |
| 22 | |
| 23 | #include "bfd.h" |
| 24 | #include "sysdep.h" |
| 25 | #include "libbfd.h" |
| 26 | #include "coff/or32.h" |
| 27 | #include "coff/internal.h" |
| 28 | #include "libcoff.h" |
| 29 | |
| 30 | static long get_symbol_value |
| 31 | PARAMS ((asymbol *)); |
| 32 | static bfd_reloc_status_type or32_reloc |
| 33 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| 34 | static bfd_boolean coff_or32_relocate_section |
| 35 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
| 36 | struct internal_reloc *, struct internal_syment *, asection **)); |
| 37 | static bfd_boolean coff_or32_adjust_symndx |
| 38 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, |
| 39 | struct internal_reloc *, bfd_boolean *)); |
| 40 | static void reloc_processing |
| 41 | PARAMS ((arelent *, struct internal_reloc *, asymbol **, bfd *, asection *)); |
| 42 | |
| 43 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) |
| 44 | |
| 45 | #define INSERT_HWORD(WORD,HWORD) \ |
| 46 | (((WORD) & 0xffff0000) | ((HWORD)& 0x0000ffff)) |
| 47 | #define EXTRACT_HWORD(WORD) \ |
| 48 | ((WORD) & 0x0000ffff) |
| 49 | #define SIGN_EXTEND_HWORD(HWORD) \ |
| 50 | ((HWORD) & 0x8000 ? (HWORD)|(~0xffffL) : (HWORD)) |
| 51 | |
| 52 | #define INSERT_JUMPTARG(WORD,JT) \ |
| 53 | (((WORD) & 0xfc000000) | ((JT)& 0x03ffffff)) |
| 54 | #define EXTRACT_JUMPTARG(WORD) \ |
| 55 | ((WORD) & 0x03ffffff) |
| 56 | #define SIGN_EXTEND_JUMPTARG(JT) \ |
| 57 | ((JT) & 0x04000000 ? (JT)|(~0x03ffffffL) : (JT)) |
| 58 | |
| 59 | /* Provided the symbol, returns the value reffed. */ |
| 60 | |
| 61 | static long |
| 62 | get_symbol_value (symbol) |
| 63 | asymbol *symbol; |
| 64 | { |
| 65 | long relocation = 0; |
| 66 | |
| 67 | if (bfd_is_com_section (symbol->section)) |
| 68 | relocation = 0; |
| 69 | else |
| 70 | relocation = symbol->value + |
| 71 | symbol->section->output_section->vma + |
| 72 | symbol->section->output_offset; |
| 73 | |
| 74 | return relocation; |
| 75 | } |
| 76 | |
| 77 | /* This function is in charge of performing all the or32 relocations. */ |
| 78 | |
| 79 | static bfd_reloc_status_type |
| 80 | or32_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, |
| 81 | error_message) |
| 82 | bfd *abfd; |
| 83 | arelent *reloc_entry; |
| 84 | asymbol *symbol_in; |
| 85 | PTR data; |
| 86 | asection *input_section; |
| 87 | bfd *output_bfd; |
| 88 | char **error_message; |
| 89 | { |
| 90 | /* The consth relocation comes in two parts, we have to remember |
| 91 | the state between calls, in these variables. */ |
| 92 | static bfd_boolean part1_consth_active = FALSE; |
| 93 | static unsigned long part1_consth_value; |
| 94 | |
| 95 | unsigned long insn; |
| 96 | unsigned long sym_value; |
| 97 | unsigned long unsigned_value; |
| 98 | unsigned short r_type; |
| 99 | long signed_value; |
| 100 | |
| 101 | unsigned long addr = reloc_entry->address ; /*+ input_section->vma*/ |
| 102 | bfd_byte *hit_data =addr + (bfd_byte *)(data); |
| 103 | |
| 104 | r_type = reloc_entry->howto->type; |
| 105 | |
| 106 | if (output_bfd) |
| 107 | { |
| 108 | /* Partial linking - do nothing. */ |
| 109 | reloc_entry->address += input_section->output_offset; |
| 110 | return bfd_reloc_ok; |
| 111 | } |
| 112 | |
| 113 | if (symbol_in != NULL |
| 114 | && bfd_is_und_section (symbol_in->section)) |
| 115 | { |
| 116 | /* Keep the state machine happy in case we're called again. */ |
| 117 | if (r_type == R_IHIHALF) |
| 118 | { |
| 119 | part1_consth_active = TRUE; |
| 120 | part1_consth_value = 0; |
| 121 | } |
| 122 | |
| 123 | return bfd_reloc_undefined; |
| 124 | } |
| 125 | |
| 126 | if ((part1_consth_active) && (r_type != R_IHCONST)) |
| 127 | { |
| 128 | part1_consth_active = FALSE; |
| 129 | *error_message = (char *) "Missing IHCONST"; |
| 130 | |
| 131 | return bfd_reloc_dangerous; |
| 132 | } |
| 133 | |
| 134 | sym_value = get_symbol_value (symbol_in); |
| 135 | |
| 136 | switch (r_type) |
| 137 | { |
| 138 | case R_IREL: |
| 139 | insn = bfd_get_32(abfd, hit_data); |
| 140 | |
| 141 | /* Take the value in the field and sign extend it. */ |
| 142 | signed_value = EXTRACT_JUMPTARG (insn); |
| 143 | signed_value = SIGN_EXTEND_JUMPTARG (signed_value); |
| 144 | signed_value <<= 2; |
| 145 | |
| 146 | /* See the note on the R_IREL reloc in coff_or32_relocate_section. */ |
| 147 | if (signed_value == - (long) reloc_entry->address) |
| 148 | signed_value = 0; |
| 149 | |
| 150 | signed_value += sym_value + reloc_entry->addend; |
| 151 | #if 0 |
| 152 | if ((signed_value & ~0x3ffff) == 0) |
| 153 | { /* Absolute jmp/call. */ |
| 154 | insn |= (1<<24); /* Make it absolute. */ |
| 155 | /* FIXME: Should we change r_type to R_IABS. */ |
| 156 | } |
| 157 | else |
| 158 | #endif |
| 159 | { |
| 160 | /* Relative jmp/call, so subtract from the value the |
| 161 | address of the place we're coming from. */ |
| 162 | signed_value -= (reloc_entry->address |
| 163 | + input_section->output_section->vma |
| 164 | + input_section->output_offset); |
| 165 | if (signed_value > 0x7ffffff || signed_value < -0x8000000) |
| 166 | return bfd_reloc_overflow; |
| 167 | } |
| 168 | signed_value >>= 2; |
| 169 | insn = INSERT_JUMPTARG (insn, signed_value); |
| 170 | bfd_put_32 (abfd, insn, hit_data); |
| 171 | break; |
| 172 | |
| 173 | case R_ILOHALF: |
| 174 | insn = bfd_get_32 (abfd, hit_data); |
| 175 | unsigned_value = EXTRACT_HWORD (insn); |
| 176 | unsigned_value += sym_value + reloc_entry->addend; |
| 177 | insn = INSERT_HWORD (insn, unsigned_value); |
| 178 | bfd_put_32 (abfd, insn, hit_data); |
| 179 | break; |
| 180 | |
| 181 | case R_IHIHALF: |
| 182 | insn = bfd_get_32 (abfd, hit_data); |
| 183 | |
| 184 | /* consth, part 1 |
| 185 | Just get the symbol value that is referenced. */ |
| 186 | part1_consth_active = TRUE; |
| 187 | part1_consth_value = sym_value + reloc_entry->addend; |
| 188 | |
| 189 | /* Don't modify insn until R_IHCONST. */ |
| 190 | break; |
| 191 | |
| 192 | case R_IHCONST: |
| 193 | insn = bfd_get_32 (abfd, hit_data); |
| 194 | |
| 195 | /* consth, part 2 |
| 196 | Now relocate the reference. */ |
| 197 | if (! part1_consth_active) |
| 198 | { |
| 199 | *error_message = (char *) "Missing IHIHALF"; |
| 200 | return bfd_reloc_dangerous; |
| 201 | } |
| 202 | |
| 203 | /* sym_ptr_ptr = r_symndx, in coff_slurp_reloc_table() */ |
| 204 | unsigned_value = 0; /*EXTRACT_HWORD(insn) << 16;*/ |
| 205 | unsigned_value += reloc_entry->addend; /* r_symndx */ |
| 206 | unsigned_value += part1_consth_value; |
| 207 | unsigned_value = unsigned_value >> 16; |
| 208 | insn = INSERT_HWORD (insn, unsigned_value); |
| 209 | part1_consth_active = FALSE; |
| 210 | bfd_put_32 (abfd, insn, hit_data); |
| 211 | break; |
| 212 | |
| 213 | case R_BYTE: |
| 214 | insn = bfd_get_8 (abfd, hit_data); |
| 215 | unsigned_value = insn + sym_value + reloc_entry->addend; |
| 216 | if (unsigned_value & 0xffffff00) |
| 217 | return bfd_reloc_overflow; |
| 218 | bfd_put_8 (abfd, unsigned_value, hit_data); |
| 219 | break; |
| 220 | |
| 221 | case R_HWORD: |
| 222 | insn = bfd_get_16 (abfd, hit_data); |
| 223 | unsigned_value = insn + sym_value + reloc_entry->addend; |
| 224 | if (unsigned_value & 0xffff0000) |
| 225 | return bfd_reloc_overflow; |
| 226 | bfd_put_16 (abfd, insn, hit_data); |
| 227 | break; |
| 228 | |
| 229 | case R_WORD: |
| 230 | insn = bfd_get_32 (abfd, hit_data); |
| 231 | insn += sym_value + reloc_entry->addend; |
| 232 | bfd_put_32 (abfd, insn, hit_data); |
| 233 | break; |
| 234 | |
| 235 | default: |
| 236 | *error_message = _("Unrecognized reloc"); |
| 237 | return bfd_reloc_dangerous; |
| 238 | } |
| 239 | |
| 240 | return bfd_reloc_ok; |
| 241 | } |
| 242 | |
| 243 | /* type rightshift |
| 244 | size |
| 245 | bitsize |
| 246 | pc-relative |
| 247 | bitpos |
| 248 | absolute |
| 249 | complain_on_overflow |
| 250 | special_function |
| 251 | relocation name |
| 252 | partial_inplace |
| 253 | src_mask |
| 254 | */ |
| 255 | |
| 256 | /* FIXME: I'm not real sure about this table. */ |
| 257 | static reloc_howto_type howto_table[] = |
| 258 | { |
| 259 | { R_ABS, 0, 3, 32, FALSE, 0, complain_overflow_bitfield, or32_reloc, "ABS", TRUE, 0xffffffff,0xffffffff, FALSE }, |
| 260 | EMPTY_HOWTO (1), |
| 261 | EMPTY_HOWTO (2), |
| 262 | EMPTY_HOWTO (3), |
| 263 | EMPTY_HOWTO (4), |
| 264 | EMPTY_HOWTO (5), |
| 265 | EMPTY_HOWTO (6), |
| 266 | EMPTY_HOWTO (7), |
| 267 | EMPTY_HOWTO (8), |
| 268 | EMPTY_HOWTO (9), |
| 269 | EMPTY_HOWTO (10), |
| 270 | EMPTY_HOWTO (11), |
| 271 | EMPTY_HOWTO (12), |
| 272 | EMPTY_HOWTO (13), |
| 273 | EMPTY_HOWTO (14), |
| 274 | EMPTY_HOWTO (15), |
| 275 | EMPTY_HOWTO (16), |
| 276 | EMPTY_HOWTO (17), |
| 277 | EMPTY_HOWTO (18), |
| 278 | EMPTY_HOWTO (19), |
| 279 | EMPTY_HOWTO (20), |
| 280 | EMPTY_HOWTO (21), |
| 281 | EMPTY_HOWTO (22), |
| 282 | EMPTY_HOWTO (23), |
| 283 | { R_IREL, 0, 3, 32, TRUE, 0, complain_overflow_signed, or32_reloc, "IREL", TRUE, 0xffffffff,0xffffffff, FALSE }, |
| 284 | { R_IABS, 0, 3, 32, FALSE, 0, complain_overflow_bitfield, or32_reloc, "IABS", TRUE, 0xffffffff,0xffffffff, FALSE }, |
| 285 | { R_ILOHALF, 0, 3, 16, TRUE, 0, complain_overflow_signed, or32_reloc, "ILOHALF", TRUE, 0x0000ffff,0x0000ffff, FALSE }, |
| 286 | { R_IHIHALF, 0, 3, 16, TRUE, 16,complain_overflow_signed, or32_reloc, "IHIHALF", TRUE, 0xffff0000,0xffff0000, FALSE }, |
| 287 | { R_IHCONST, 0, 3, 16, TRUE, 0, complain_overflow_signed, or32_reloc, "IHCONST", TRUE, 0xffff0000,0xffff0000, FALSE }, |
| 288 | { R_BYTE, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, or32_reloc, "BYTE", TRUE, 0x000000ff,0x000000ff, FALSE }, |
| 289 | { R_HWORD, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, or32_reloc, "HWORD", TRUE, 0x0000ffff,0x0000ffff, FALSE }, |
| 290 | { R_WORD, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, or32_reloc, "WORD", TRUE, 0xffffffff,0xffffffff, FALSE }, |
| 291 | }; |
| 292 | |
| 293 | #define BADMAG(x) OR32BADMAG (x) |
| 294 | |
| 295 | #define RELOC_PROCESSING(relent, reloc, symbols, abfd, section) \ |
| 296 | reloc_processing (relent, reloc, symbols, abfd, section) |
| 297 | |
| 298 | static void |
| 299 | reloc_processing (relent,reloc, symbols, abfd, section) |
| 300 | arelent *relent; |
| 301 | struct internal_reloc *reloc; |
| 302 | asymbol **symbols; |
| 303 | bfd *abfd; |
| 304 | asection *section; |
| 305 | { |
| 306 | static bfd_vma ihihalf_vaddr = (bfd_vma) -1; |
| 307 | |
| 308 | relent->address = reloc->r_vaddr; |
| 309 | relent->howto = howto_table + reloc->r_type; |
| 310 | |
| 311 | if (reloc->r_type == R_IHCONST) |
| 312 | { |
| 313 | /* The address of an R_IHCONST should always be the address of |
| 314 | the immediately preceding R_IHIHALF. relocs generated by gas |
| 315 | are correct, but relocs generated by High C are different (I |
| 316 | can't figure out what the address means for High C). We can |
| 317 | handle both gas and High C by ignoring the address here, and |
| 318 | simply reusing the address saved for R_IHIHALF. */ |
| 319 | if (ihihalf_vaddr == (bfd_vma) -1) |
| 320 | abort (); |
| 321 | |
| 322 | relent->address = ihihalf_vaddr; |
| 323 | ihihalf_vaddr = (bfd_vma) -1; |
| 324 | relent->addend = reloc->r_symndx; |
| 325 | relent->sym_ptr_ptr= bfd_abs_section_ptr->symbol_ptr_ptr; |
| 326 | } |
| 327 | else |
| 328 | { |
| 329 | asymbol *ptr; |
| 330 | relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx]; |
| 331 | |
| 332 | ptr = *(relent->sym_ptr_ptr); |
| 333 | |
| 334 | relent->addend = 0; |
| 335 | relent->address-= section->vma; |
| 336 | |
| 337 | if (reloc->r_type == R_IHIHALF) |
| 338 | ihihalf_vaddr = relent->address; |
| 339 | else if (ihihalf_vaddr != (bfd_vma) -1) |
| 340 | abort (); |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | /* The reloc processing routine for the optimized COFF linker. */ |
| 345 | |
| 346 | static bfd_boolean |
| 347 | coff_or32_relocate_section (output_bfd, info, input_bfd, input_section, |
| 348 | contents, relocs, syms, sections) |
| 349 | bfd *output_bfd ATTRIBUTE_UNUSED; |
| 350 | struct bfd_link_info *info; |
| 351 | bfd *input_bfd; |
| 352 | asection *input_section; |
| 353 | bfd_byte *contents; |
| 354 | struct internal_reloc *relocs; |
| 355 | struct internal_syment *syms; |
| 356 | asection **sections; |
| 357 | { |
| 358 | struct internal_reloc *rel; |
| 359 | struct internal_reloc *relend; |
| 360 | bfd_boolean hihalf; |
| 361 | bfd_vma hihalf_val; |
| 362 | |
| 363 | /* If we are performing a relocatable link, we don't need to do a |
| 364 | thing. The caller will take care of adjusting the reloc |
| 365 | addresses and symbol indices. */ |
| 366 | if (info->relocatable) |
| 367 | return TRUE; |
| 368 | |
| 369 | hihalf = FALSE; |
| 370 | hihalf_val = 0; |
| 371 | |
| 372 | rel = relocs; |
| 373 | relend = rel + input_section->reloc_count; |
| 374 | |
| 375 | for (; rel < relend; rel++) |
| 376 | { |
| 377 | long symndx; |
| 378 | bfd_byte *loc; |
| 379 | struct coff_link_hash_entry *h; |
| 380 | struct internal_syment *sym; |
| 381 | asection *sec; |
| 382 | bfd_vma val; |
| 383 | bfd_boolean overflow; |
| 384 | unsigned long insn; |
| 385 | long signed_value; |
| 386 | unsigned long unsigned_value; |
| 387 | bfd_reloc_status_type rstat; |
| 388 | |
| 389 | symndx = rel->r_symndx; |
| 390 | loc = contents + rel->r_vaddr - input_section->vma; |
| 391 | |
| 392 | if (symndx == -1 || rel->r_type == R_IHCONST) |
| 393 | h = NULL; |
| 394 | else |
| 395 | h = obj_coff_sym_hashes (input_bfd)[symndx]; |
| 396 | |
| 397 | sym = NULL; |
| 398 | sec = NULL; |
| 399 | val = 0; |
| 400 | |
| 401 | /* An R_IHCONST reloc does not have a symbol. Instead, the |
| 402 | symbol index is an addend. R_IHCONST is always used in |
| 403 | conjunction with R_IHHALF. */ |
| 404 | if (rel->r_type != R_IHCONST) |
| 405 | { |
| 406 | if (h == NULL) |
| 407 | { |
| 408 | if (symndx == -1) |
| 409 | sec = bfd_abs_section_ptr; |
| 410 | else |
| 411 | { |
| 412 | sym = syms + symndx; |
| 413 | sec = sections[symndx]; |
| 414 | val = (sec->output_section->vma |
| 415 | + sec->output_offset |
| 416 | + sym->n_value |
| 417 | - sec->vma); |
| 418 | } |
| 419 | } |
| 420 | else |
| 421 | { |
| 422 | if (h->root.type == bfd_link_hash_defined |
| 423 | || h->root.type == bfd_link_hash_defweak) |
| 424 | { |
| 425 | sec = h->root.u.def.section; |
| 426 | val = (h->root.u.def.value |
| 427 | + sec->output_section->vma |
| 428 | + sec->output_offset); |
| 429 | } |
| 430 | else |
| 431 | { |
| 432 | if (! ((*info->callbacks->undefined_symbol) |
| 433 | (info, h->root.root.string, input_bfd, input_section, |
| 434 | rel->r_vaddr - input_section->vma, TRUE))) |
| 435 | return FALSE; |
| 436 | } |
| 437 | } |
| 438 | |
| 439 | if (hihalf) |
| 440 | { |
| 441 | if (! ((*info->callbacks->reloc_dangerous) |
| 442 | (info, "missing IHCONST reloc", input_bfd, |
| 443 | input_section, rel->r_vaddr - input_section->vma))) |
| 444 | return FALSE; |
| 445 | hihalf = FALSE; |
| 446 | } |
| 447 | } |
| 448 | |
| 449 | overflow = FALSE; |
| 450 | |
| 451 | switch (rel->r_type) |
| 452 | { |
| 453 | default: |
| 454 | bfd_set_error (bfd_error_bad_value); |
| 455 | return FALSE; |
| 456 | |
| 457 | case R_IREL: |
| 458 | insn = bfd_get_32 (input_bfd, loc); |
| 459 | |
| 460 | /* Extract the addend. */ |
| 461 | signed_value = EXTRACT_JUMPTARG (insn); |
| 462 | signed_value = SIGN_EXTEND_JUMPTARG (signed_value); |
| 463 | signed_value <<= 2; |
| 464 | |
| 465 | /* Determine the destination of the jump. */ |
| 466 | signed_value += val; |
| 467 | |
| 468 | #if 0 |
| 469 | if ((signed_value & ~0x3ffff) == 0) |
| 470 | { |
| 471 | /* We can use an absolute jump. */ |
| 472 | insn |= (1 << 24); |
| 473 | } |
| 474 | else |
| 475 | #endif |
| 476 | { |
| 477 | /* Make the destination PC relative. */ |
| 478 | signed_value -= (input_section->output_section->vma |
| 479 | + input_section->output_offset |
| 480 | + (rel->r_vaddr - input_section->vma)); |
| 481 | if (signed_value > 0x7ffffff || signed_value < - 0x8000000) |
| 482 | { |
| 483 | overflow = TRUE; |
| 484 | signed_value = 0; |
| 485 | } |
| 486 | } |
| 487 | |
| 488 | /* Put the adjusted value back into the instruction. */ |
| 489 | signed_value >>= 2; |
| 490 | insn = INSERT_JUMPTARG(insn, signed_value); |
| 491 | |
| 492 | bfd_put_32 (input_bfd, (bfd_vma) insn, loc); |
| 493 | break; |
| 494 | |
| 495 | case R_ILOHALF: |
| 496 | insn = bfd_get_32 (input_bfd, loc); |
| 497 | unsigned_value = EXTRACT_HWORD (insn); |
| 498 | unsigned_value += val; |
| 499 | insn = INSERT_HWORD (insn, unsigned_value); |
| 500 | bfd_put_32 (input_bfd, insn, loc); |
| 501 | break; |
| 502 | |
| 503 | case R_IHIHALF: |
| 504 | /* Save the value for the R_IHCONST reloc. */ |
| 505 | hihalf = TRUE; |
| 506 | hihalf_val = val; |
| 507 | break; |
| 508 | |
| 509 | case R_IHCONST: |
| 510 | if (! hihalf) |
| 511 | { |
| 512 | if (! ((*info->callbacks->reloc_dangerous) |
| 513 | (info, "missing IHIHALF reloc", input_bfd, |
| 514 | input_section, rel->r_vaddr - input_section->vma))) |
| 515 | return FALSE; |
| 516 | hihalf_val = 0; |
| 517 | } |
| 518 | |
| 519 | insn = bfd_get_32 (input_bfd, loc); |
| 520 | unsigned_value = rel->r_symndx + hihalf_val; |
| 521 | unsigned_value >>= 16; |
| 522 | insn = INSERT_HWORD (insn, unsigned_value); |
| 523 | bfd_put_32 (input_bfd, (bfd_vma) insn, loc); |
| 524 | |
| 525 | hihalf = FALSE; |
| 526 | break; |
| 527 | |
| 528 | case R_BYTE: |
| 529 | case R_HWORD: |
| 530 | case R_WORD: |
| 531 | rstat = _bfd_relocate_contents (howto_table + rel->r_type, |
| 532 | input_bfd, val, loc); |
| 533 | if (rstat == bfd_reloc_overflow) |
| 534 | overflow = TRUE; |
| 535 | else if (rstat != bfd_reloc_ok) |
| 536 | abort (); |
| 537 | break; |
| 538 | } |
| 539 | |
| 540 | if (overflow) |
| 541 | { |
| 542 | const char *name; |
| 543 | char buf[SYMNMLEN + 1]; |
| 544 | |
| 545 | if (symndx == -1) |
| 546 | name = "*ABS*"; |
| 547 | else if (h != NULL) |
| 548 | name = NULL; |
| 549 | else if (sym == NULL) |
| 550 | name = "*unknown*"; |
| 551 | else if (sym->_n._n_n._n_zeroes == 0 |
| 552 | && sym->_n._n_n._n_offset != 0) |
| 553 | name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset; |
| 554 | else |
| 555 | { |
| 556 | strncpy (buf, sym->_n._n_name, SYMNMLEN); |
| 557 | buf[SYMNMLEN] = '\0'; |
| 558 | name = buf; |
| 559 | } |
| 560 | |
| 561 | if (! ((*info->callbacks->reloc_overflow) |
| 562 | (info, (h ? &h->root : NULL), name, |
| 563 | howto_table[rel->r_type].name, (bfd_vma) 0, input_bfd, |
| 564 | input_section, rel->r_vaddr - input_section->vma))) |
| 565 | return FALSE; |
| 566 | } |
| 567 | } |
| 568 | |
| 569 | return TRUE; |
| 570 | } |
| 571 | |
| 572 | #define coff_relocate_section coff_or32_relocate_section |
| 573 | |
| 574 | /* We don't want to change the symndx of a R_IHCONST reloc, since it |
| 575 | is actually an addend, not a symbol index at all. */ |
| 576 | |
| 577 | static bfd_boolean |
| 578 | coff_or32_adjust_symndx (obfd, info, ibfd, sec, irel, adjustedp) |
| 579 | bfd *obfd ATTRIBUTE_UNUSED; |
| 580 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| 581 | bfd *ibfd ATTRIBUTE_UNUSED; |
| 582 | asection *sec ATTRIBUTE_UNUSED; |
| 583 | struct internal_reloc *irel; |
| 584 | bfd_boolean *adjustedp; |
| 585 | { |
| 586 | if (irel->r_type == R_IHCONST) |
| 587 | *adjustedp = TRUE; |
| 588 | else |
| 589 | *adjustedp = FALSE; |
| 590 | return TRUE; |
| 591 | } |
| 592 | |
| 593 | #define coff_adjust_symndx coff_or32_adjust_symndx |
| 594 | |
| 595 | #include "coffcode.h" |
| 596 | |
| 597 | const bfd_target or32coff_big_vec = |
| 598 | { |
| 599 | "coff-or32-big", /* Name. */ |
| 600 | bfd_target_coff_flavour, |
| 601 | BFD_ENDIAN_BIG, /* Data byte order is big. */ |
| 602 | BFD_ENDIAN_BIG, /* Header byte order is big. */ |
| 603 | |
| 604 | (HAS_RELOC | EXEC_P | /* Object flags. */ |
| 605 | HAS_LINENO | HAS_DEBUG | |
| 606 | HAS_SYMS | HAS_LOCALS | WP_TEXT), |
| 607 | |
| 608 | (SEC_HAS_CONTENTS | SEC_ALLOC | /* Section flags. */ |
| 609 | SEC_LOAD | SEC_RELOC | |
| 610 | SEC_READONLY ), |
| 611 | '_', /* Leading underscore. */ |
| 612 | '/', /* ar_pad_char. */ |
| 613 | 15, /* ar_max_namelen. */ |
| 614 | |
| 615 | /* Data. */ |
| 616 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 617 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 618 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, |
| 619 | |
| 620 | /* Headers. */ |
| 621 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 622 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 623 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, |
| 624 | |
| 625 | { |
| 626 | _bfd_dummy_target, |
| 627 | coff_object_p, |
| 628 | bfd_generic_archive_p, |
| 629 | _bfd_dummy_target |
| 630 | }, |
| 631 | { |
| 632 | bfd_false, |
| 633 | coff_mkobject, |
| 634 | _bfd_generic_mkarchive, |
| 635 | bfd_false |
| 636 | }, |
| 637 | { |
| 638 | bfd_false, |
| 639 | coff_write_object_contents, |
| 640 | _bfd_write_archive_contents, |
| 641 | bfd_false |
| 642 | }, |
| 643 | |
| 644 | BFD_JUMP_TABLE_GENERIC (coff), |
| 645 | BFD_JUMP_TABLE_COPY (coff), |
| 646 | BFD_JUMP_TABLE_CORE (_bfd_nocore), |
| 647 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), |
| 648 | BFD_JUMP_TABLE_SYMBOLS (coff), |
| 649 | BFD_JUMP_TABLE_RELOCS (coff), |
| 650 | BFD_JUMP_TABLE_WRITE (coff), |
| 651 | BFD_JUMP_TABLE_LINK (coff), |
| 652 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), |
| 653 | |
| 654 | /* Alternative_target. */ |
| 655 | #ifdef TARGET_LITTLE_SYM |
| 656 | & TARGET_LITTLE_SYM, |
| 657 | #else |
| 658 | NULL, |
| 659 | #endif |
| 660 | |
| 661 | COFF_SWAP_TABLE |
| 662 | }; |