| 1 | /* BFD back-end for AMD 29000 COFF binaries. |
| 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1999, 2000, 2001, |
| 3 | 2002, 2003, 2004 |
| 4 | Free Software Foundation, Inc. |
| 5 | Contributed by David Wood at New York University 7/8/91. |
| 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 | #define A29K 1 |
| 24 | |
| 25 | #include "bfd.h" |
| 26 | #include "sysdep.h" |
| 27 | #include "libbfd.h" |
| 28 | #include "coff/a29k.h" |
| 29 | #include "coff/internal.h" |
| 30 | #include "libcoff.h" |
| 31 | |
| 32 | static long get_symbol_value PARAMS ((asymbol *)); |
| 33 | static bfd_reloc_status_type a29k_reloc |
| 34 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| 35 | static bfd_boolean coff_a29k_relocate_section |
| 36 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
| 37 | struct internal_reloc *, struct internal_syment *, asection **)); |
| 38 | static bfd_boolean coff_a29k_adjust_symndx |
| 39 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, |
| 40 | struct internal_reloc *, bfd_boolean *)); |
| 41 | static void reloc_processing |
| 42 | PARAMS ((arelent *, struct internal_reloc *, asymbol **, bfd *, asection *)); |
| 43 | |
| 44 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) |
| 45 | |
| 46 | #define INSERT_HWORD(WORD,HWORD) \ |
| 47 | (((WORD) & 0xff00ff00) | (((HWORD) & 0xff00) << 8) | ((HWORD)& 0xff)) |
| 48 | #define EXTRACT_HWORD(WORD) \ |
| 49 | ((((WORD) & 0x00ff0000) >> 8) | ((WORD) & 0xff)) |
| 50 | #define SIGN_EXTEND_HWORD(HWORD) \ |
| 51 | (((HWORD) ^ 0x8000) - 0x8000) |
| 52 | |
| 53 | /* Provided the symbol, returns the value reffed. */ |
| 54 | |
| 55 | static long |
| 56 | get_symbol_value (symbol) |
| 57 | asymbol *symbol; |
| 58 | { |
| 59 | long relocation = 0; |
| 60 | |
| 61 | if (bfd_is_com_section (symbol->section)) |
| 62 | relocation = 0; |
| 63 | else |
| 64 | relocation = symbol->value + |
| 65 | symbol->section->output_section->vma + |
| 66 | symbol->section->output_offset; |
| 67 | |
| 68 | return relocation; |
| 69 | } |
| 70 | |
| 71 | /* This function is in charge of performing all the 29k relocations. */ |
| 72 | |
| 73 | static bfd_reloc_status_type |
| 74 | a29k_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, |
| 75 | error_message) |
| 76 | bfd *abfd; |
| 77 | arelent *reloc_entry; |
| 78 | asymbol *symbol_in; |
| 79 | PTR data; |
| 80 | asection *input_section; |
| 81 | bfd *output_bfd; |
| 82 | char **error_message; |
| 83 | { |
| 84 | /* The consth relocation comes in two parts, we have to remember |
| 85 | the state between calls, in these variables. */ |
| 86 | static bfd_boolean part1_consth_active = FALSE; |
| 87 | static unsigned long part1_consth_value; |
| 88 | unsigned long insn; |
| 89 | unsigned long sym_value; |
| 90 | unsigned long unsigned_value; |
| 91 | unsigned short r_type; |
| 92 | long signed_value; |
| 93 | unsigned long addr = reloc_entry->address ; /*+ input_section->vma*/ |
| 94 | bfd_byte *hit_data =addr + (bfd_byte *) (data); |
| 95 | |
| 96 | r_type = reloc_entry->howto->type; |
| 97 | |
| 98 | if (output_bfd) |
| 99 | { |
| 100 | /* Partial linking - do nothing. */ |
| 101 | reloc_entry->address += input_section->output_offset; |
| 102 | return bfd_reloc_ok; |
| 103 | } |
| 104 | |
| 105 | if (symbol_in != NULL |
| 106 | && bfd_is_und_section (symbol_in->section)) |
| 107 | { |
| 108 | /* Keep the state machine happy in case we're called again. */ |
| 109 | if (r_type == R_IHIHALF) |
| 110 | { |
| 111 | part1_consth_active = TRUE; |
| 112 | part1_consth_value = 0; |
| 113 | } |
| 114 | return bfd_reloc_undefined; |
| 115 | } |
| 116 | |
| 117 | if ((part1_consth_active) && (r_type != R_IHCONST)) |
| 118 | { |
| 119 | part1_consth_active = FALSE; |
| 120 | *error_message = (char *) _("Missing IHCONST"); |
| 121 | |
| 122 | return bfd_reloc_dangerous; |
| 123 | } |
| 124 | |
| 125 | sym_value = get_symbol_value(symbol_in); |
| 126 | |
| 127 | switch (r_type) |
| 128 | { |
| 129 | case R_IREL: |
| 130 | insn = bfd_get_32 (abfd, hit_data); |
| 131 | /* Take the value in the field and sign extend it. */ |
| 132 | signed_value = EXTRACT_HWORD(insn); |
| 133 | signed_value = SIGN_EXTEND_HWORD(signed_value); |
| 134 | signed_value <<= 2; |
| 135 | |
| 136 | /* See the note on the R_IREL reloc in coff_a29k_relocate_section. */ |
| 137 | if (signed_value == - (long) reloc_entry->address) |
| 138 | signed_value = 0; |
| 139 | |
| 140 | signed_value += sym_value + reloc_entry->addend; |
| 141 | if ((signed_value & ~0x3ffff) == 0) |
| 142 | { /* Absolute jmp/call */ |
| 143 | insn |= (1 << 24); /* Make it absolute */ |
| 144 | /* FIXME: Should we change r_type to R_IABS. */ |
| 145 | } |
| 146 | else |
| 147 | { |
| 148 | /* Relative jmp/call, so subtract from the value the |
| 149 | address of the place we're coming from. */ |
| 150 | signed_value -= (reloc_entry->address |
| 151 | + input_section->output_section->vma |
| 152 | + input_section->output_offset); |
| 153 | if (signed_value > 0x1ffff || signed_value < -0x20000) |
| 154 | return bfd_reloc_overflow; |
| 155 | } |
| 156 | signed_value >>= 2; |
| 157 | insn = INSERT_HWORD (insn, signed_value); |
| 158 | bfd_put_32 (abfd, (bfd_vma) insn ,hit_data); |
| 159 | break; |
| 160 | case R_ILOHALF: |
| 161 | insn = bfd_get_32 (abfd, hit_data); |
| 162 | unsigned_value = EXTRACT_HWORD(insn); |
| 163 | unsigned_value += sym_value + reloc_entry->addend; |
| 164 | insn = INSERT_HWORD(insn, unsigned_value); |
| 165 | bfd_put_32 (abfd, (bfd_vma) insn, hit_data); |
| 166 | break; |
| 167 | case R_IHIHALF: |
| 168 | insn = bfd_get_32 (abfd, hit_data); |
| 169 | /* consth, part 1 |
| 170 | Just get the symbol value that is referenced. */ |
| 171 | part1_consth_active = TRUE; |
| 172 | part1_consth_value = sym_value + reloc_entry->addend; |
| 173 | /* Don't modify insn until R_IHCONST. */ |
| 174 | break; |
| 175 | case R_IHCONST: |
| 176 | insn = bfd_get_32 (abfd, hit_data); |
| 177 | /* consth, part 2 |
| 178 | Now relocate the reference. */ |
| 179 | if (! part1_consth_active) |
| 180 | { |
| 181 | *error_message = (char *) _("Missing IHIHALF"); |
| 182 | return bfd_reloc_dangerous; |
| 183 | } |
| 184 | /* sym_ptr_ptr = r_symndx, in coff_slurp_reloc_table() */ |
| 185 | unsigned_value = 0; /*EXTRACT_HWORD(insn) << 16;*/ |
| 186 | unsigned_value += reloc_entry->addend; /* r_symndx */ |
| 187 | unsigned_value += part1_consth_value; |
| 188 | unsigned_value = unsigned_value >> 16; |
| 189 | insn = INSERT_HWORD(insn, unsigned_value); |
| 190 | part1_consth_active = FALSE; |
| 191 | bfd_put_32 (abfd, (bfd_vma) insn, hit_data); |
| 192 | break; |
| 193 | case R_BYTE: |
| 194 | insn = bfd_get_8 (abfd, hit_data); |
| 195 | unsigned_value = insn + sym_value + reloc_entry->addend; |
| 196 | if (unsigned_value & 0xffffff00) |
| 197 | return bfd_reloc_overflow; |
| 198 | bfd_put_8 (abfd, unsigned_value, hit_data); |
| 199 | break; |
| 200 | case R_HWORD: |
| 201 | insn = bfd_get_16 (abfd, hit_data); |
| 202 | unsigned_value = insn + sym_value + reloc_entry->addend; |
| 203 | if (unsigned_value & 0xffff0000) |
| 204 | return bfd_reloc_overflow; |
| 205 | bfd_put_16 (abfd, (bfd_vma) insn, hit_data); |
| 206 | break; |
| 207 | case R_WORD: |
| 208 | insn = bfd_get_32 (abfd, hit_data); |
| 209 | insn += sym_value + reloc_entry->addend; |
| 210 | bfd_put_32 (abfd, (bfd_vma) insn, hit_data); |
| 211 | break; |
| 212 | default: |
| 213 | *error_message = _("Unrecognized reloc"); |
| 214 | return bfd_reloc_dangerous; |
| 215 | } |
| 216 | |
| 217 | return(bfd_reloc_ok); |
| 218 | } |
| 219 | |
| 220 | /*FIXME: I'm not real sure about this table. */ |
| 221 | static reloc_howto_type howto_table[] = |
| 222 | { |
| 223 | {R_ABS, 0, 3, 32, FALSE, 0, complain_overflow_bitfield,a29k_reloc,"ABS", TRUE, 0xffffffff,0xffffffff, FALSE}, |
| 224 | EMPTY_HOWTO (1), |
| 225 | EMPTY_HOWTO (2), |
| 226 | EMPTY_HOWTO (3), |
| 227 | EMPTY_HOWTO (4), |
| 228 | EMPTY_HOWTO (5), |
| 229 | EMPTY_HOWTO (6), |
| 230 | EMPTY_HOWTO (7), |
| 231 | EMPTY_HOWTO (8), |
| 232 | EMPTY_HOWTO (9), |
| 233 | EMPTY_HOWTO (10), |
| 234 | EMPTY_HOWTO (11), |
| 235 | EMPTY_HOWTO (12), |
| 236 | EMPTY_HOWTO (13), |
| 237 | EMPTY_HOWTO (14), |
| 238 | EMPTY_HOWTO (15), |
| 239 | EMPTY_HOWTO (16), |
| 240 | EMPTY_HOWTO (17), |
| 241 | EMPTY_HOWTO (18), |
| 242 | EMPTY_HOWTO (19), |
| 243 | EMPTY_HOWTO (20), |
| 244 | EMPTY_HOWTO (21), |
| 245 | EMPTY_HOWTO (22), |
| 246 | EMPTY_HOWTO (23), |
| 247 | {R_IREL, 0, 3, 32, TRUE, 0, complain_overflow_signed,a29k_reloc,"IREL", TRUE, 0xffffffff,0xffffffff, FALSE}, |
| 248 | {R_IABS, 0, 3, 32, FALSE, 0, complain_overflow_bitfield, a29k_reloc,"IABS", TRUE, 0xffffffff,0xffffffff, FALSE}, |
| 249 | {R_ILOHALF, 0, 3, 16, TRUE, 0, complain_overflow_signed, a29k_reloc,"ILOHALF", TRUE, 0x0000ffff,0x0000ffff, FALSE}, |
| 250 | {R_IHIHALF, 0, 3, 16, TRUE, 16, complain_overflow_signed, a29k_reloc,"IHIHALF", TRUE, 0xffff0000,0xffff0000, FALSE}, |
| 251 | {R_IHCONST, 0, 3, 16, TRUE, 0, complain_overflow_signed, a29k_reloc,"IHCONST", TRUE, 0xffff0000,0xffff0000, FALSE}, |
| 252 | {R_BYTE, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, a29k_reloc,"BYTE", TRUE, 0x000000ff,0x000000ff, FALSE}, |
| 253 | {R_HWORD, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, a29k_reloc,"HWORD", TRUE, 0x0000ffff,0x0000ffff, FALSE}, |
| 254 | {R_WORD, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, a29k_reloc,"WORD", TRUE, 0xffffffff,0xffffffff, FALSE}, |
| 255 | }; |
| 256 | |
| 257 | #define BADMAG(x) A29KBADMAG(x) |
| 258 | |
| 259 | #define RELOC_PROCESSING(relent, reloc, symbols, abfd, section) \ |
| 260 | reloc_processing(relent, reloc, symbols, abfd, section) |
| 261 | |
| 262 | static void |
| 263 | reloc_processing (relent,reloc, symbols, abfd, section) |
| 264 | arelent *relent; |
| 265 | struct internal_reloc *reloc; |
| 266 | asymbol **symbols; |
| 267 | bfd *abfd; |
| 268 | asection *section; |
| 269 | { |
| 270 | static bfd_vma ihihalf_vaddr = (bfd_vma) -1; |
| 271 | |
| 272 | relent->address = reloc->r_vaddr; |
| 273 | relent->howto = howto_table + reloc->r_type; |
| 274 | if (reloc->r_type == R_IHCONST) |
| 275 | { |
| 276 | /* The address of an R_IHCONST should always be the address of |
| 277 | the immediately preceding R_IHIHALF. relocs generated by gas |
| 278 | are correct, but relocs generated by High C are different (I |
| 279 | can't figure out what the address means for High C). We can |
| 280 | handle both gas and High C by ignoring the address here, and |
| 281 | simply reusing the address saved for R_IHIHALF. */ |
| 282 | if (ihihalf_vaddr == (bfd_vma) -1) |
| 283 | abort (); |
| 284 | relent->address = ihihalf_vaddr; |
| 285 | ihihalf_vaddr = (bfd_vma) -1; |
| 286 | relent->addend = reloc->r_symndx; |
| 287 | relent->sym_ptr_ptr= bfd_abs_section_ptr->symbol_ptr_ptr; |
| 288 | } |
| 289 | else |
| 290 | { |
| 291 | asymbol *ptr; |
| 292 | |
| 293 | relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx]; |
| 294 | |
| 295 | ptr = *(relent->sym_ptr_ptr); |
| 296 | |
| 297 | if (ptr |
| 298 | && bfd_asymbol_bfd(ptr) == abfd |
| 299 | && ((ptr->flags & BSF_OLD_COMMON) == 0)) |
| 300 | relent->addend = 0; |
| 301 | else |
| 302 | relent->addend = 0; |
| 303 | |
| 304 | relent->address-= section->vma; |
| 305 | if (reloc->r_type == R_IHIHALF) |
| 306 | ihihalf_vaddr = relent->address; |
| 307 | else if (ihihalf_vaddr != (bfd_vma) -1) |
| 308 | abort (); |
| 309 | } |
| 310 | } |
| 311 | |
| 312 | /* The reloc processing routine for the optimized COFF linker. */ |
| 313 | |
| 314 | static bfd_boolean |
| 315 | coff_a29k_relocate_section (output_bfd, info, input_bfd, input_section, |
| 316 | contents, relocs, syms, sections) |
| 317 | bfd *output_bfd ATTRIBUTE_UNUSED; |
| 318 | struct bfd_link_info *info; |
| 319 | bfd *input_bfd; |
| 320 | asection *input_section; |
| 321 | bfd_byte *contents; |
| 322 | struct internal_reloc *relocs; |
| 323 | struct internal_syment *syms; |
| 324 | asection **sections; |
| 325 | { |
| 326 | struct internal_reloc *rel; |
| 327 | struct internal_reloc *relend; |
| 328 | bfd_boolean hihalf; |
| 329 | bfd_vma hihalf_val; |
| 330 | |
| 331 | /* If we are performing a relocatable link, we don't need to do a |
| 332 | thing. The caller will take care of adjusting the reloc |
| 333 | addresses and symbol indices. */ |
| 334 | if (info->relocatable) |
| 335 | return TRUE; |
| 336 | |
| 337 | hihalf = FALSE; |
| 338 | hihalf_val = 0; |
| 339 | |
| 340 | rel = relocs; |
| 341 | relend = rel + input_section->reloc_count; |
| 342 | for (; rel < relend; rel++) |
| 343 | { |
| 344 | long symndx; |
| 345 | bfd_byte *loc; |
| 346 | struct coff_link_hash_entry *h; |
| 347 | struct internal_syment *sym; |
| 348 | asection *sec; |
| 349 | bfd_vma val; |
| 350 | bfd_boolean overflow; |
| 351 | unsigned long insn; |
| 352 | long signed_value; |
| 353 | unsigned long unsigned_value; |
| 354 | bfd_reloc_status_type rstat; |
| 355 | |
| 356 | symndx = rel->r_symndx; |
| 357 | loc = contents + rel->r_vaddr - input_section->vma; |
| 358 | |
| 359 | if (symndx == -1 || rel->r_type == R_IHCONST) |
| 360 | h = NULL; |
| 361 | else |
| 362 | h = obj_coff_sym_hashes (input_bfd)[symndx]; |
| 363 | |
| 364 | sym = NULL; |
| 365 | sec = NULL; |
| 366 | val = 0; |
| 367 | |
| 368 | /* An R_IHCONST reloc does not have a symbol. Instead, the |
| 369 | symbol index is an addend. R_IHCONST is always used in |
| 370 | conjunction with R_IHHALF. */ |
| 371 | if (rel->r_type != R_IHCONST) |
| 372 | { |
| 373 | if (h == NULL) |
| 374 | { |
| 375 | if (symndx == -1) |
| 376 | sec = bfd_abs_section_ptr; |
| 377 | else |
| 378 | { |
| 379 | sym = syms + symndx; |
| 380 | sec = sections[symndx]; |
| 381 | val = (sec->output_section->vma |
| 382 | + sec->output_offset |
| 383 | + sym->n_value |
| 384 | - sec->vma); |
| 385 | } |
| 386 | } |
| 387 | else |
| 388 | { |
| 389 | if ( h->root.type == bfd_link_hash_defined |
| 390 | || h->root.type == bfd_link_hash_defweak) |
| 391 | { |
| 392 | sec = h->root.u.def.section; |
| 393 | val = (h->root.u.def.value |
| 394 | + sec->output_section->vma |
| 395 | + sec->output_offset); |
| 396 | } |
| 397 | else |
| 398 | { |
| 399 | if (! ((*info->callbacks->undefined_symbol) |
| 400 | (info, h->root.root.string, input_bfd, input_section, |
| 401 | rel->r_vaddr - input_section->vma, TRUE))) |
| 402 | return FALSE; |
| 403 | } |
| 404 | } |
| 405 | |
| 406 | if (hihalf) |
| 407 | { |
| 408 | if (! ((*info->callbacks->reloc_dangerous) |
| 409 | (info, _("missing IHCONST reloc"), input_bfd, |
| 410 | input_section, rel->r_vaddr - input_section->vma))) |
| 411 | return FALSE; |
| 412 | hihalf = FALSE; |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | overflow = FALSE; |
| 417 | |
| 418 | switch (rel->r_type) |
| 419 | { |
| 420 | default: |
| 421 | bfd_set_error (bfd_error_bad_value); |
| 422 | return FALSE; |
| 423 | |
| 424 | case R_IREL: |
| 425 | insn = bfd_get_32 (input_bfd, loc); |
| 426 | |
| 427 | /* Extract the addend. */ |
| 428 | signed_value = EXTRACT_HWORD (insn); |
| 429 | signed_value = SIGN_EXTEND_HWORD (signed_value); |
| 430 | signed_value <<= 2; |
| 431 | |
| 432 | /* Unfortunately, there are two different versions of COFF |
| 433 | a29k. In the original AMD version, the value stored in |
| 434 | the field for the R_IREL reloc is a simple addend. In |
| 435 | the GNU version, the value is the negative of the address |
| 436 | of the reloc within section. We try to cope here by |
| 437 | assuming the AMD version, unless the addend is exactly |
| 438 | the negative of the address; in the latter case we assume |
| 439 | the GNU version. This means that something like |
| 440 | .text |
| 441 | nop |
| 442 | jmp i-4 |
| 443 | will fail, because the addend of -4 will happen to equal |
| 444 | the negative of the address within the section. The |
| 445 | compiler will never generate code like this. |
| 446 | |
| 447 | At some point in the future we may want to take out this |
| 448 | check. */ |
| 449 | |
| 450 | if (signed_value == - (long) (rel->r_vaddr - input_section->vma)) |
| 451 | signed_value = 0; |
| 452 | |
| 453 | /* Determine the destination of the jump. */ |
| 454 | signed_value += val; |
| 455 | |
| 456 | if ((signed_value & ~0x3ffff) == 0) |
| 457 | { |
| 458 | /* We can use an absolute jump. */ |
| 459 | insn |= (1 << 24); |
| 460 | } |
| 461 | else |
| 462 | { |
| 463 | /* Make the destination PC relative. */ |
| 464 | signed_value -= (input_section->output_section->vma |
| 465 | + input_section->output_offset |
| 466 | + (rel->r_vaddr - input_section->vma)); |
| 467 | if (signed_value > 0x1ffff || signed_value < - 0x20000) |
| 468 | { |
| 469 | overflow = TRUE; |
| 470 | signed_value = 0; |
| 471 | } |
| 472 | } |
| 473 | |
| 474 | /* Put the adjusted value back into the instruction. */ |
| 475 | signed_value >>= 2; |
| 476 | insn = INSERT_HWORD (insn, signed_value); |
| 477 | |
| 478 | bfd_put_32 (input_bfd, (bfd_vma) insn, loc); |
| 479 | break; |
| 480 | |
| 481 | case R_ILOHALF: |
| 482 | insn = bfd_get_32 (input_bfd, loc); |
| 483 | unsigned_value = EXTRACT_HWORD (insn); |
| 484 | unsigned_value += val; |
| 485 | insn = INSERT_HWORD (insn, unsigned_value); |
| 486 | bfd_put_32 (input_bfd, (bfd_vma) insn, loc); |
| 487 | break; |
| 488 | |
| 489 | case R_IHIHALF: |
| 490 | /* Save the value for the R_IHCONST reloc. */ |
| 491 | hihalf = TRUE; |
| 492 | hihalf_val = val; |
| 493 | break; |
| 494 | |
| 495 | case R_IHCONST: |
| 496 | if (! hihalf) |
| 497 | { |
| 498 | if (! ((*info->callbacks->reloc_dangerous) |
| 499 | (info, _("missing IHIHALF reloc"), input_bfd, |
| 500 | input_section, rel->r_vaddr - input_section->vma))) |
| 501 | return FALSE; |
| 502 | hihalf_val = 0; |
| 503 | } |
| 504 | |
| 505 | insn = bfd_get_32 (input_bfd, loc); |
| 506 | unsigned_value = rel->r_symndx + hihalf_val; |
| 507 | unsigned_value >>= 16; |
| 508 | insn = INSERT_HWORD (insn, unsigned_value); |
| 509 | bfd_put_32 (input_bfd, (bfd_vma) insn, loc); |
| 510 | |
| 511 | hihalf = FALSE; |
| 512 | |
| 513 | break; |
| 514 | |
| 515 | case R_BYTE: |
| 516 | case R_HWORD: |
| 517 | case R_WORD: |
| 518 | rstat = _bfd_relocate_contents (howto_table + rel->r_type, |
| 519 | input_bfd, val, loc); |
| 520 | if (rstat == bfd_reloc_overflow) |
| 521 | overflow = TRUE; |
| 522 | else if (rstat != bfd_reloc_ok) |
| 523 | abort (); |
| 524 | break; |
| 525 | } |
| 526 | |
| 527 | if (overflow) |
| 528 | { |
| 529 | const char *name; |
| 530 | char buf[SYMNMLEN + 1]; |
| 531 | |
| 532 | if (symndx == -1) |
| 533 | name = "*ABS*"; |
| 534 | else if (h != NULL) |
| 535 | name = NULL; |
| 536 | else if (sym == NULL) |
| 537 | name = "*unknown*"; |
| 538 | else if (sym->_n._n_n._n_zeroes == 0 |
| 539 | && sym->_n._n_n._n_offset != 0) |
| 540 | name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset; |
| 541 | else |
| 542 | { |
| 543 | strncpy (buf, sym->_n._n_name, SYMNMLEN); |
| 544 | buf[SYMNMLEN] = '\0'; |
| 545 | name = buf; |
| 546 | } |
| 547 | |
| 548 | if (! ((*info->callbacks->reloc_overflow) |
| 549 | (info, (h ? &h->root : NULL), name, |
| 550 | howto_table[rel->r_type].name, (bfd_vma) 0, input_bfd, |
| 551 | input_section, rel->r_vaddr - input_section->vma))) |
| 552 | return FALSE; |
| 553 | } |
| 554 | } |
| 555 | |
| 556 | return TRUE; |
| 557 | } |
| 558 | |
| 559 | #define coff_relocate_section coff_a29k_relocate_section |
| 560 | |
| 561 | /* We don't want to change the symndx of a R_IHCONST reloc, since it |
| 562 | is actually an addend, not a symbol index at all. */ |
| 563 | |
| 564 | static bfd_boolean |
| 565 | coff_a29k_adjust_symndx (obfd, info, ibfd, sec, irel, adjustedp) |
| 566 | bfd *obfd ATTRIBUTE_UNUSED; |
| 567 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| 568 | bfd *ibfd ATTRIBUTE_UNUSED; |
| 569 | asection *sec ATTRIBUTE_UNUSED; |
| 570 | struct internal_reloc *irel; |
| 571 | bfd_boolean *adjustedp; |
| 572 | { |
| 573 | if (irel->r_type == R_IHCONST) |
| 574 | *adjustedp = TRUE; |
| 575 | else |
| 576 | *adjustedp = FALSE; |
| 577 | return TRUE; |
| 578 | } |
| 579 | |
| 580 | #define coff_adjust_symndx coff_a29k_adjust_symndx |
| 581 | |
| 582 | #include "coffcode.h" |
| 583 | |
| 584 | CREATE_BIG_COFF_TARGET_VEC (a29kcoff_big_vec, "coff-a29k-big", 0, SEC_READONLY, '_', NULL, COFF_SWAP_TABLE) |