1 /* V850-specific support for 32-bit ELF 2 Copyright (C) 1996-2020 Free Software Foundation, Inc. 3 4 This file is part of BFD, the Binary File Descriptor library. 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 19 MA 02110-1301, USA. */ 20 21 22 /* XXX FIXME: This code is littered with 32bit int, 16bit short, 8bit char 23 dependencies. As is the gas & simulator code for the v850. */ 24 25 #include "sysdep.h" 26 #include "bfd.h" 27 #include "bfdlink.h" 28 #include "libbfd.h" 29 #include "elf-bfd.h" 30 #include "elf/v850.h" 31 #include "libiberty.h" 32 #include "elf32-v850.h" 33 34 /* Sign-extend a 17-bit number. */ 35 #define SEXT17(x) ((((x) & 0x1ffff) ^ 0x10000) - 0x10000) 36 37 /* Sign-extend a 22-bit number. */ 38 #define SEXT22(x) ((((x) & 0x3fffff) ^ 0x200000) - 0x200000) 39 40 static reloc_howto_type v850_elf_howto_table[]; 41 42 /* Look through the relocs for a section during the first phase, and 43 allocate space in the global offset table or procedure linkage 44 table. */ 45 46 static bfd_boolean 47 v850_elf_check_relocs (bfd *abfd, 48 struct bfd_link_info *info, 49 asection *sec, 50 const Elf_Internal_Rela *relocs) 51 { 52 bfd_boolean ret = TRUE; 53 Elf_Internal_Shdr *symtab_hdr; 54 struct elf_link_hash_entry **sym_hashes; 55 const Elf_Internal_Rela *rel; 56 const Elf_Internal_Rela *rel_end; 57 unsigned int r_type; 58 int other = 0; 59 const char *common = NULL; 60 61 if (bfd_link_relocatable (info)) 62 return TRUE; 63 64 #ifdef DEBUG 65 _bfd_error_handler ("v850_elf_check_relocs called for section %pA in %pB", 66 sec, abfd); 67 #endif 68 69 symtab_hdr = &elf_tdata (abfd)->symtab_hdr; 70 sym_hashes = elf_sym_hashes (abfd); 71 72 rel_end = relocs + sec->reloc_count; 73 for (rel = relocs; rel < rel_end; rel++) 74 { 75 unsigned long r_symndx; 76 struct elf_link_hash_entry *h; 77 78 r_symndx = ELF32_R_SYM (rel->r_info); 79 if (r_symndx < symtab_hdr->sh_info) 80 h = NULL; 81 else 82 { 83 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 84 while (h->root.type == bfd_link_hash_indirect 85 || h->root.type == bfd_link_hash_warning) 86 h = (struct elf_link_hash_entry *) h->root.u.i.link; 87 } 88 89 r_type = ELF32_R_TYPE (rel->r_info); 90 switch (r_type) 91 { 92 default: 93 break; 94 95 /* This relocation describes the C++ object vtable hierarchy. 96 Reconstruct it for later use during GC. */ 97 case R_V850_GNU_VTINHERIT: 98 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) 99 return FALSE; 100 break; 101 102 /* This relocation describes which C++ vtable entries 103 are actually used. Record for later use during GC. */ 104 case R_V850_GNU_VTENTRY: 105 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) 106 return FALSE; 107 break; 108 109 case R_V850_SDA_16_16_SPLIT_OFFSET: 110 case R_V850_SDA_16_16_OFFSET: 111 case R_V850_SDA_15_16_OFFSET: 112 case R_V810_GPWLO_1: 113 case R_V850_HWLO: 114 case R_V850_HWLO_1: 115 other = V850_OTHER_SDA; 116 common = ".scommon"; 117 goto small_data_common; 118 119 case R_V850_ZDA_16_16_SPLIT_OFFSET: 120 case R_V850_ZDA_16_16_OFFSET: 121 case R_V850_ZDA_15_16_OFFSET: 122 other = V850_OTHER_ZDA; 123 common = ".zcommon"; 124 goto small_data_common; 125 126 case R_V850_TDA_4_4_OFFSET: 127 case R_V850_TDA_4_5_OFFSET: 128 case R_V850_TDA_7_7_OFFSET: 129 case R_V850_TDA_6_8_OFFSET: 130 case R_V850_TDA_7_8_OFFSET: 131 case R_V850_TDA_16_16_OFFSET: 132 other = V850_OTHER_TDA; 133 common = ".tcommon"; 134 /* fall through */ 135 136 #define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA) 137 138 small_data_common: 139 if (h) 140 { 141 /* Flag which type of relocation was used. */ 142 h->other |= other; 143 if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK) 144 && (h->other & V850_OTHER_ERROR) == 0) 145 { 146 const char * msg; 147 static char buff[200]; /* XXX */ 148 149 switch (h->other & V850_OTHER_MASK) 150 { 151 default: 152 msg = _("variable `%s' cannot occupy in multiple small data regions"); 153 break; 154 case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA: 155 msg = _("variable `%s' can only be in one of the small, zero, and tiny data regions"); 156 break; 157 case V850_OTHER_SDA | V850_OTHER_ZDA: 158 msg = _("variable `%s' cannot be in both small and zero data regions simultaneously"); 159 break; 160 case V850_OTHER_SDA | V850_OTHER_TDA: 161 msg = _("variable `%s' cannot be in both small and tiny data regions simultaneously"); 162 break; 163 case V850_OTHER_ZDA | V850_OTHER_TDA: 164 msg = _("variable `%s' cannot be in both zero and tiny data regions simultaneously"); 165 break; 166 } 167 168 sprintf (buff, msg, h->root.root.string); 169 info->callbacks->warning (info, buff, h->root.root.string, 170 abfd, h->root.u.def.section, 171 (bfd_vma) 0); 172 173 bfd_set_error (bfd_error_bad_value); 174 h->other |= V850_OTHER_ERROR; 175 ret = FALSE; 176 } 177 } 178 179 if (h && h->root.type == bfd_link_hash_common 180 && h->root.u.c.p 181 && !strcmp (bfd_section_name (h->root.u.c.p->section), "COMMON")) 182 { 183 asection * section; 184 185 section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common); 186 section->flags |= SEC_IS_COMMON | SEC_SMALL_DATA; 187 } 188 189 #ifdef DEBUG 190 fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n", 191 v850_elf_howto_table[ (int)r_type ].name, 192 (h && h->root.root.string) ? h->root.root.string : "<unknown>", 193 (h->root.type == bfd_link_hash_common) ? ", symbol is common" : ""); 194 #endif 195 break; 196 } 197 } 198 199 return ret; 200 } 201 202 /* In the old version, when an entry was checked out from the table, 203 it was deleted. This produced an error if the entry was needed 204 more than once, as the second attempted retry failed. 205 206 In the current version, the entry is not deleted, instead we set 207 the field 'found' to TRUE. If a second lookup matches the same 208 entry, then we know that the hi16s reloc has already been updated 209 and does not need to be updated a second time. 210 211 TODO - TOFIX: If it is possible that we need to restore 2 different 212 addresses from the same table entry, where the first generates an 213 overflow, whilst the second do not, then this code will fail. */ 214 215 typedef struct hi16s_location 216 { 217 bfd_vma addend; 218 bfd_byte * address; 219 unsigned long counter; 220 bfd_boolean found; 221 struct hi16s_location * next; 222 } 223 hi16s_location; 224 225 static hi16s_location * previous_hi16s; 226 static hi16s_location * free_hi16s; 227 static unsigned long hi16s_counter; 228 229 static void 230 remember_hi16s_reloc (bfd *abfd, bfd_vma addend, bfd_byte *address) 231 { 232 hi16s_location * entry = NULL; 233 size_t amt = sizeof (* free_hi16s); 234 235 /* Find a free structure. */ 236 if (free_hi16s == NULL) 237 free_hi16s = bfd_zalloc (abfd, amt); 238 239 entry = free_hi16s; 240 free_hi16s = free_hi16s->next; 241 242 entry->addend = addend; 243 entry->address = address; 244 entry->counter = hi16s_counter ++; 245 entry->found = FALSE; 246 entry->next = previous_hi16s; 247 previous_hi16s = entry; 248 249 /* Cope with wrap around of our counter. */ 250 if (hi16s_counter == 0) 251 { 252 /* XXX: Assume that all counter entries differ only in their low 16 bits. */ 253 for (entry = previous_hi16s; entry != NULL; entry = entry->next) 254 entry->counter &= 0xffff; 255 256 hi16s_counter = 0x10000; 257 } 258 } 259 260 static bfd_byte * 261 find_remembered_hi16s_reloc (bfd_vma addend, bfd_boolean *already_found) 262 { 263 hi16s_location *match = NULL; 264 hi16s_location *entry; 265 bfd_byte *addr; 266 267 /* Search the table. Record the most recent entry that matches. */ 268 for (entry = previous_hi16s; entry; entry = entry->next) 269 { 270 if (entry->addend == addend 271 && (match == NULL || match->counter < entry->counter)) 272 { 273 match = entry; 274 } 275 } 276 277 if (match == NULL) 278 return NULL; 279 280 /* Extract the address. */ 281 addr = match->address; 282 283 /* Remember if this entry has already been used before. */ 284 if (already_found) 285 * already_found = match->found; 286 287 /* Note that this entry has now been used. */ 288 match->found = TRUE; 289 290 return addr; 291 } 292 293 /* Calculate the final operand value for a R_V850_LO16 or 294 R_V850_LO16_SPLIT_OFFSET. *INSN is the current operand value and 295 ADDEND is the sum of the relocation symbol and offset. Store the 296 operand value in *INSN and return true on success. 297 298 The assembler has already done some of this: If the value stored in 299 the instruction has its 15th bit set, (counting from zero) then the 300 assembler will have added 1 to the value stored in the associated 301 HI16S reloc. So for example, these relocations: 302 303 movhi hi( fred ), r0, r1 304 movea lo( fred ), r1, r1 305 306 will store 0 in the value fields for the MOVHI and MOVEA instructions 307 and addend will be the address of fred, but for these instructions: 308 309 movhi hi( fred + 0x123456 ), r0, r1 310 movea lo( fred + 0x123456 ), r1, r1 311 312 the value stored in the MOVHI instruction will be 0x12 and the value 313 stored in the MOVEA instruction will be 0x3456. If however the 314 instructions were: 315 316 movhi hi( fred + 0x10ffff ), r0, r1 317 movea lo( fred + 0x10ffff ), r1, r1 318 319 then the value stored in the MOVHI instruction would be 0x11 (not 320 0x10) and the value stored in the MOVEA instruction would be 0xffff. 321 Thus (assuming for the moment that the addend is 0), at run time the 322 MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction 323 adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if 324 the instructions were: 325 326 movhi hi( fred - 1 ), r0, r1 327 movea lo( fred - 1 ), r1, r1 328 329 then 0 is stored in the MOVHI instruction and -1 is stored in the 330 MOVEA instruction. 331 332 Overflow can occur if the addition of the value stored in the 333 instruction plus the addend sets the 15th bit when before it was clear. 334 This is because the 15th bit will be sign extended into the high part, 335 thus reducing its value by one, but since the 15th bit was originally 336 clear, the assembler will not have added 1 to the previous HI16S reloc 337 to compensate for this effect. For example: 338 339 movhi hi( fred + 0x123456 ), r0, r1 340 movea lo( fred + 0x123456 ), r1, r1 341 342 The value stored in HI16S reloc is 0x12, the value stored in the LO16 343 reloc is 0x3456. If we assume that the address of fred is 0x00007000 344 then the relocations become: 345 346 HI16S: 0x0012 + (0x00007000 >> 16) = 0x12 347 LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456 348 349 but when the instructions are executed, the MOVEA instruction's value 350 is signed extended, so the sum becomes: 351 352 0x00120000 353 + 0xffffa456 354 ------------ 355 0x0011a456 but 'fred + 0x123456' = 0x0012a456 356 357 Note that if the 15th bit was set in the value stored in the LO16 358 reloc, then we do not have to do anything: 359 360 movhi hi( fred + 0x10ffff ), r0, r1 361 movea lo( fred + 0x10ffff ), r1, r1 362 363 HI16S: 0x0011 + (0x00007000 >> 16) = 0x11 364 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff 365 366 0x00110000 367 + 0x00006fff 368 ------------ 369 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff 370 371 Overflow can also occur if the computation carries into the 16th bit 372 and it also results in the 15th bit having the same value as the 15th 373 bit of the original value. What happens is that the HI16S reloc 374 will have already examined the 15th bit of the original value and 375 added 1 to the high part if the bit is set. This compensates for the 376 sign extension of 15th bit of the result of the computation. But now 377 there is a carry into the 16th bit, and this has not been allowed for. 378 379 So, for example if fred is at address 0xf000: 380 381 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set] 382 movea lo( fred + 0xffff ), r1, r1 383 384 HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001 385 LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost) 386 387 0x00010000 388 + 0xffffefff 389 ------------ 390 0x0000efff but 'fred + 0xffff' = 0x0001efff 391 392 Similarly, if the 15th bit remains clear, but overflow occurs into 393 the 16th bit then (assuming the address of fred is 0xf000): 394 395 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear] 396 movea lo( fred + 0x7000 ), r1, r1 397 398 HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000 399 LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost) 400 401 0x00000000 402 + 0x00006fff 403 ------------ 404 0x00006fff but 'fred + 0x7000' = 0x00016fff 405 406 Note - there is no need to change anything if a carry occurs, and the 407 15th bit changes its value from being set to being clear, as the HI16S 408 reloc will have already added in 1 to the high part for us: 409 410 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set] 411 movea lo( fred + 0xffff ), r1, r1 412 413 HI16S: 0x0001 + (0x00007000 >> 16) 414 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost) 415 416 0x00010000 417 + 0x00006fff (bit 15 not set, so the top half is zero) 418 ------------ 419 0x00016fff which is right (assuming that fred is at 0x7000) 420 421 but if the 15th bit goes from being clear to being set, then we must 422 once again handle overflow: 423 424 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear] 425 movea lo( fred + 0x7000 ), r1, r1 426 427 HI16S: 0x0000 + (0x0000ffff >> 16) 428 LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16) 429 430 0x00000000 431 + 0x00006fff (bit 15 not set, so the top half is zero) 432 ------------ 433 0x00006fff which is wrong (assuming that fred is at 0xffff). */ 434 435 static bfd_boolean 436 v850_elf_perform_lo16_relocation (bfd *abfd, unsigned long *insn, 437 unsigned long addend) 438 { 439 #define BIT15_SET(x) ((x) & 0x8000) 440 #define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff) 441 442 if ((BIT15_SET (*insn + addend) && ! BIT15_SET (addend)) 443 || (OVERFLOWS (addend, *insn) 444 && ((! BIT15_SET (*insn)) || (BIT15_SET (addend))))) 445 { 446 bfd_boolean already_updated; 447 bfd_byte *hi16s_address = find_remembered_hi16s_reloc 448 (addend, & already_updated); 449 450 /* Amend the matching HI16_S relocation. */ 451 if (hi16s_address != NULL) 452 { 453 if (! already_updated) 454 { 455 unsigned long hi_insn = bfd_get_16 (abfd, hi16s_address); 456 hi_insn += 1; 457 bfd_put_16 (abfd, hi_insn, hi16s_address); 458 } 459 } 460 else 461 { 462 _bfd_error_handler (_("failed to find previous HI16 reloc")); 463 return FALSE; 464 } 465 } 466 #undef OVERFLOWS 467 #undef BIT15_SET 468 469 /* Do not complain if value has top bit set, as this has been 470 anticipated. */ 471 *insn = (*insn + addend) & 0xffff; 472 return TRUE; 473 } 474 475 /* FIXME: The code here probably ought to be removed and the code in reloc.c 476 allowed to do its stuff instead. At least for most of the relocs, anyway. */ 477 478 static bfd_reloc_status_type 479 v850_elf_perform_relocation (bfd *abfd, 480 unsigned int r_type, 481 bfd_vma addend, 482 bfd_byte *address) 483 { 484 unsigned long insn; 485 unsigned long result; 486 bfd_signed_vma saddend = (bfd_signed_vma) addend; 487 488 switch (r_type) 489 { 490 default: 491 #ifdef DEBUG 492 _bfd_error_handler ("%pB: unsupported relocation type %#x", 493 abfd, r_type); 494 #endif 495 return bfd_reloc_notsupported; 496 497 case R_V850_REL32: 498 case R_V850_ABS32: 499 case R_V810_WORD: 500 case R_V850_PC32: 501 bfd_put_32 (abfd, addend, address); 502 return bfd_reloc_ok; 503 504 case R_V850_WLO23: 505 case R_V850_23: 506 insn = bfd_get_32 (abfd, address); 507 insn &= ~((0x7f << 4) | (0x7fff80 << (16-7))); 508 insn |= ((addend & 0x7f) << 4) | ((addend & 0x7fff80) << (16-7)); 509 bfd_put_32 (abfd, (bfd_vma) insn, address); 510 return bfd_reloc_ok; 511 512 case R_V850_PCR22: 513 case R_V850_22_PCREL: 514 if (saddend > 0x1fffff || saddend < -0x200000) 515 return bfd_reloc_overflow; 516 517 if ((addend % 2) != 0) 518 return bfd_reloc_dangerous; 519 520 insn = bfd_get_32 (abfd, address); 521 insn &= ~0xfffe003f; 522 insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16)); 523 bfd_put_32 (abfd, (bfd_vma) insn, address); 524 return bfd_reloc_ok; 525 526 case R_V850_PC17: 527 case R_V850_17_PCREL: 528 if (saddend > 0xffff || saddend < -0x10000) 529 return bfd_reloc_overflow; 530 531 if ((addend % 2) != 0) 532 return bfd_reloc_dangerous; 533 534 insn = bfd_get_32 (abfd, address); 535 insn &= ~ 0xfffe0010; 536 insn |= ((addend & 0xfffe) << 16) | ((addend & 0x10000) >> (16-4)); 537 break; 538 539 case R_V850_PC16U: 540 case R_V850_16_PCREL: 541 if ((saddend < -0xffff) || (saddend > 0)) 542 return bfd_reloc_overflow; 543 544 if ((addend % 2) != 0) 545 return bfd_reloc_dangerous; 546 547 insn = bfd_get_16 (abfd, address); 548 insn &= ~0xfffe; 549 insn |= (-addend & 0xfffe); 550 break; 551 552 case R_V850_PC9: 553 case R_V850_9_PCREL: 554 if (saddend > 0xff || saddend < -0x100) 555 return bfd_reloc_overflow; 556 557 if ((addend % 2) != 0) 558 return bfd_reloc_dangerous; 559 560 insn = bfd_get_16 (abfd, address); 561 insn &= ~ 0xf870; 562 insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3); 563 break; 564 565 case R_V810_WHI: 566 case R_V850_HI16: 567 addend += (bfd_get_16 (abfd, address) << 16); 568 addend = (addend >> 16); 569 insn = addend; 570 break; 571 572 case R_V810_WHI1: 573 case R_V850_HI16_S: 574 /* Remember where this relocation took place. */ 575 remember_hi16s_reloc (abfd, addend, address); 576 577 addend += (bfd_get_16 (abfd, address) << 16); 578 addend = (addend >> 16) + ((addend & 0x8000) != 0); 579 580 /* This relocation cannot overflow. */ 581 if (addend > 0xffff) 582 addend = 0; 583 584 insn = addend; 585 break; 586 587 case R_V810_WLO: 588 case R_V850_LO16: 589 insn = bfd_get_16 (abfd, address); 590 if (! v850_elf_perform_lo16_relocation (abfd, &insn, addend)) 591 return bfd_reloc_overflow; 592 break; 593 594 case R_V810_BYTE: 595 case R_V850_8: 596 addend += (char) bfd_get_8 (abfd, address); 597 598 saddend = (bfd_signed_vma) addend; 599 600 if (saddend > 0x7f || saddend < -0x80) 601 return bfd_reloc_overflow; 602 603 bfd_put_8 (abfd, addend, address); 604 return bfd_reloc_ok; 605 606 case R_V850_CALLT_16_16_OFFSET: 607 addend += bfd_get_16 (abfd, address); 608 609 saddend = (bfd_signed_vma) addend; 610 611 if (saddend > 0xffff || saddend < 0) 612 return bfd_reloc_overflow; 613 614 insn = addend; 615 break; 616 617 case R_V850_CALLT_15_16_OFFSET: 618 insn = bfd_get_16 (abfd, address); 619 620 addend += insn & 0xfffe; 621 622 saddend = (bfd_signed_vma) addend; 623 624 if (saddend > 0xffff || saddend < 0) 625 return bfd_reloc_overflow; 626 627 insn = (0xfffe & addend) 628 | (insn & ~0xfffe); 629 break; 630 631 case R_V850_CALLT_6_7_OFFSET: 632 insn = bfd_get_16 (abfd, address); 633 addend += ((insn & 0x3f) << 1); 634 635 saddend = (bfd_signed_vma) addend; 636 637 if (saddend > 0x7e || saddend < 0) 638 return bfd_reloc_overflow; 639 640 if (addend & 1) 641 return bfd_reloc_dangerous; 642 643 insn &= 0xff80; 644 insn |= (addend >> 1); 645 break; 646 647 case R_V850_16: 648 case R_V810_HWORD: 649 case R_V850_SDA_16_16_OFFSET: 650 case R_V850_ZDA_16_16_OFFSET: 651 case R_V850_TDA_16_16_OFFSET: 652 addend += bfd_get_16 (abfd, address); 653 654 saddend = (bfd_signed_vma) addend; 655 656 if (saddend > 0x7fff || saddend < -0x8000) 657 return bfd_reloc_overflow; 658 659 insn = addend; 660 break; 661 662 case R_V850_16_S1: 663 case R_V850_SDA_15_16_OFFSET: 664 case R_V850_ZDA_15_16_OFFSET: 665 case R_V810_GPWLO_1: 666 insn = bfd_get_16 (abfd, address); 667 addend += (insn & 0xfffe); 668 669 saddend = (bfd_signed_vma) addend; 670 671 if (saddend > 0x7ffe || saddend < -0x8000) 672 return bfd_reloc_overflow; 673 674 if (addend & 1) 675 return bfd_reloc_dangerous; 676 677 insn = (addend &~ (bfd_vma) 1) | (insn & 1); 678 break; 679 680 case R_V850_TDA_6_8_OFFSET: 681 insn = bfd_get_16 (abfd, address); 682 addend += ((insn & 0x7e) << 1); 683 684 saddend = (bfd_signed_vma) addend; 685 686 if (saddend > 0xfc || saddend < 0) 687 return bfd_reloc_overflow; 688 689 if (addend & 3) 690 return bfd_reloc_dangerous; 691 692 insn &= 0xff81; 693 insn |= (addend >> 1); 694 break; 695 696 case R_V850_TDA_7_8_OFFSET: 697 insn = bfd_get_16 (abfd, address); 698 addend += ((insn & 0x7f) << 1); 699 700 saddend = (bfd_signed_vma) addend; 701 702 if (saddend > 0xfe || saddend < 0) 703 return bfd_reloc_overflow; 704 705 if (addend & 1) 706 return bfd_reloc_dangerous; 707 708 insn &= 0xff80; 709 insn |= (addend >> 1); 710 break; 711 712 case R_V850_TDA_7_7_OFFSET: 713 insn = bfd_get_16 (abfd, address); 714 addend += insn & 0x7f; 715 716 saddend = (bfd_signed_vma) addend; 717 718 if (saddend > 0x7f || saddend < 0) 719 return bfd_reloc_overflow; 720 721 insn &= 0xff80; 722 insn |= addend; 723 break; 724 725 case R_V850_TDA_4_5_OFFSET: 726 insn = bfd_get_16 (abfd, address); 727 addend += ((insn & 0xf) << 1); 728 729 saddend = (bfd_signed_vma) addend; 730 731 if (saddend > 0x1e || saddend < 0) 732 return bfd_reloc_overflow; 733 734 if (addend & 1) 735 return bfd_reloc_dangerous; 736 737 insn &= 0xfff0; 738 insn |= (addend >> 1); 739 break; 740 741 case R_V850_TDA_4_4_OFFSET: 742 insn = bfd_get_16 (abfd, address); 743 addend += insn & 0xf; 744 745 saddend = (bfd_signed_vma) addend; 746 747 if (saddend > 0xf || saddend < 0) 748 return bfd_reloc_overflow; 749 750 insn &= 0xfff0; 751 insn |= addend; 752 break; 753 754 case R_V810_WLO_1: 755 case R_V850_HWLO: 756 case R_V850_HWLO_1: 757 case R_V850_LO16_S1: 758 insn = bfd_get_16 (abfd, address); 759 result = insn & 0xfffe; 760 if (! v850_elf_perform_lo16_relocation (abfd, &result, addend)) 761 return bfd_reloc_overflow; 762 if (result & 1) 763 return bfd_reloc_overflow; 764 insn = (result & 0xfffe) 765 | (insn & ~0xfffe); 766 bfd_put_16 (abfd, insn, address); 767 return bfd_reloc_ok; 768 769 case R_V850_BLO: 770 case R_V850_LO16_SPLIT_OFFSET: 771 insn = bfd_get_32 (abfd, address); 772 result = ((insn & 0xfffe0000) >> 16) | ((insn & 0x20) >> 5); 773 if (! v850_elf_perform_lo16_relocation (abfd, &result, addend)) 774 return bfd_reloc_overflow; 775 insn = (((result << 16) & 0xfffe0000) 776 | ((result << 5) & 0x20) 777 | (insn & ~0xfffe0020)); 778 bfd_put_32 (abfd, insn, address); 779 return bfd_reloc_ok; 780 781 case R_V850_16_SPLIT_OFFSET: 782 case R_V850_SDA_16_16_SPLIT_OFFSET: 783 case R_V850_ZDA_16_16_SPLIT_OFFSET: 784 insn = bfd_get_32 (abfd, address); 785 addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5); 786 787 saddend = (bfd_signed_vma) addend; 788 789 if (saddend > 0x7fff || saddend < -0x8000) 790 return bfd_reloc_overflow; 791 792 insn &= 0x0001ffdf; 793 insn |= (addend & 1) << 5; 794 insn |= (addend &~ (bfd_vma) 1) << 16; 795 796 bfd_put_32 (abfd, (bfd_vma) insn, address); 797 return bfd_reloc_ok; 798 799 case R_V850_GNU_VTINHERIT: 800 case R_V850_GNU_VTENTRY: 801 return bfd_reloc_ok; 802 803 } 804 805 bfd_put_16 (abfd, (bfd_vma) insn, address); 806 return bfd_reloc_ok; 807 } 808 809 /* Insert the addend into the instruction. */ 810 811 static bfd_reloc_status_type 812 v850_elf_reloc (bfd *abfd ATTRIBUTE_UNUSED, 813 arelent *reloc, 814 asymbol *symbol, 815 void * data ATTRIBUTE_UNUSED, 816 asection *isection, 817 bfd *obfd, 818 char **err ATTRIBUTE_UNUSED) 819 { 820 long relocation; 821 822 /* If there is an output BFD, 823 and the symbol is not a section name (which is only defined at final link time), 824 and either we are not putting the addend into the instruction 825 or the addend is zero, so there is nothing to add into the instruction 826 then just fixup the address and return. */ 827 if (obfd != NULL 828 && (symbol->flags & BSF_SECTION_SYM) == 0 829 && (! reloc->howto->partial_inplace 830 || reloc->addend == 0)) 831 { 832 reloc->address += isection->output_offset; 833 return bfd_reloc_ok; 834 } 835 836 /* Catch relocs involving undefined symbols. */ 837 if (bfd_is_und_section (symbol->section) 838 && (symbol->flags & BSF_WEAK) == 0 839 && obfd == NULL) 840 return bfd_reloc_undefined; 841 842 /* We handle final linking of some relocs ourselves. */ 843 844 /* Is the address of the relocation really within the section? */ 845 if (reloc->address > bfd_get_section_limit (abfd, isection)) 846 return bfd_reloc_outofrange; 847 848 /* Work out which section the relocation is targeted at and the 849 initial relocation command value. */ 850 851 if (reloc->howto->pc_relative) 852 return bfd_reloc_ok; 853 854 /* Get symbol value. (Common symbols are special.) */ 855 if (bfd_is_com_section (symbol->section)) 856 relocation = 0; 857 else 858 relocation = symbol->value; 859 860 /* Convert input-section-relative symbol value to absolute + addend. */ 861 relocation += symbol->section->output_section->vma; 862 relocation += symbol->section->output_offset; 863 relocation += reloc->addend; 864 865 reloc->addend = relocation; 866 return bfd_reloc_ok; 867 } 868 869 /* This function is used for relocs which are only used 870 for relaxing, which the linker should otherwise ignore. */ 871 872 static bfd_reloc_status_type 873 v850_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, 874 arelent *reloc_entry, 875 asymbol *symbol ATTRIBUTE_UNUSED, 876 void * data ATTRIBUTE_UNUSED, 877 asection *input_section, 878 bfd *output_bfd, 879 char **error_message ATTRIBUTE_UNUSED) 880 { 881 if (output_bfd != NULL) 882 reloc_entry->address += input_section->output_offset; 883 884 return bfd_reloc_ok; 885 } 886 /* Note: It is REQUIRED that the 'type' value of each entry 887 in this array match the index of the entry in the array. 888 SeeAlso: RELOC_NUBMER in include/elf/v850.h. */ 889 static reloc_howto_type v850_elf_howto_table[] = 890 { 891 /* This reloc does nothing. */ 892 HOWTO (R_V850_NONE, /* Type. */ 893 0, /* Rightshift. */ 894 3, /* Size (0 = byte, 1 = short, 2 = long). */ 895 0, /* Bitsize. */ 896 FALSE, /* PC_relative. */ 897 0, /* Bitpos. */ 898 complain_overflow_dont, /* Complain_on_overflow. */ 899 bfd_elf_generic_reloc, /* Special_function. */ 900 "R_V850_NONE", /* Name. */ 901 FALSE, /* Partial_inplace. */ 902 0, /* Src_mask. */ 903 0, /* Dst_mask. */ 904 FALSE), /* PCrel_offset. */ 905 906 /* A PC relative 9 bit branch. */ 907 HOWTO (R_V850_9_PCREL, /* Type. */ 908 0, /* Rightshift. */ 909 1, /* Size (0 = byte, 1 = short, 2 = long). */ 910 9, /* Bitsize. */ 911 TRUE, /* PC_relative. */ 912 0, /* Bitpos. */ 913 complain_overflow_bitfield, /* Complain_on_overflow. */ 914 v850_elf_reloc, /* Special_function. */ 915 "R_V850_9_PCREL", /* Name. */ 916 FALSE, /* Partial_inplace. */ 917 0x00ffffff, /* Src_mask. */ 918 0x00ffffff, /* Dst_mask. */ 919 TRUE), /* PCrel_offset. */ 920 921 /* A PC relative 22 bit branch. */ 922 HOWTO (R_V850_22_PCREL, /* Type. */ 923 0, /* Rightshift. */ 924 2, /* Size (0 = byte, 1 = short, 2 = long). */ 925 22, /* Bitsize. */ 926 TRUE, /* PC_relative. */ 927 0, /* Bitpos. */ 928 complain_overflow_signed, /* Complain_on_overflow. */ 929 v850_elf_reloc, /* Special_function. */ 930 "R_V850_22_PCREL", /* Name. */ 931 FALSE, /* Partial_inplace. */ 932 0x07ffff80, /* Src_mask. */ 933 0x07ffff80, /* Dst_mask. */ 934 TRUE), /* PCrel_offset. */ 935 936 /* High 16 bits of symbol value. */ 937 HOWTO (R_V850_HI16_S, /* Type. */ 938 0, /* Rightshift. */ 939 1, /* Size (0 = byte, 1 = short, 2 = long). */ 940 16, /* Bitsize. */ 941 FALSE, /* PC_relative. */ 942 0, /* Bitpos. */ 943 complain_overflow_dont, /* Complain_on_overflow. */ 944 v850_elf_reloc, /* Special_function. */ 945 "R_V850_HI16_S", /* Name. */ 946 FALSE, /* Partial_inplace. */ 947 0xffff, /* Src_mask. */ 948 0xffff, /* Dst_mask. */ 949 FALSE), /* PCrel_offset. */ 950 951 /* High 16 bits of symbol value. */ 952 HOWTO (R_V850_HI16, /* Type. */ 953 0, /* Rightshift. */ 954 1, /* Size (0 = byte, 1 = short, 2 = long). */ 955 16, /* Bitsize. */ 956 FALSE, /* PC_relative. */ 957 0, /* Bitpos. */ 958 complain_overflow_dont, /* Complain_on_overflow. */ 959 v850_elf_reloc, /* Special_function. */ 960 "R_V850_HI16", /* Name. */ 961 FALSE, /* Partial_inplace. */ 962 0xffff, /* Src_mask. */ 963 0xffff, /* Dst_mask. */ 964 FALSE), /* PCrel_offset. */ 965 966 /* Low 16 bits of symbol value. */ 967 HOWTO (R_V850_LO16, /* Type. */ 968 0, /* Rightshift. */ 969 1, /* Size (0 = byte, 1 = short, 2 = long). */ 970 16, /* Bitsize. */ 971 FALSE, /* PC_relative. */ 972 0, /* Bitpos. */ 973 complain_overflow_dont, /* Complain_on_overflow. */ 974 v850_elf_reloc, /* Special_function. */ 975 "R_V850_LO16", /* Name. */ 976 FALSE, /* Partial_inplace. */ 977 0xffff, /* Src_mask. */ 978 0xffff, /* Dst_mask. */ 979 FALSE), /* PCrel_offset. */ 980 981 /* Simple 32bit reloc. */ 982 HOWTO (R_V850_ABS32, /* Type. */ 983 0, /* Rightshift. */ 984 2, /* Size (0 = byte, 1 = short, 2 = long). */ 985 32, /* Bitsize. */ 986 FALSE, /* PC_relative. */ 987 0, /* Bitpos. */ 988 complain_overflow_dont, /* Complain_on_overflow. */ 989 v850_elf_reloc, /* Special_function. */ 990 "R_V850_ABS32", /* Name. */ 991 FALSE, /* Partial_inplace. */ 992 0xffffffff, /* Src_mask. */ 993 0xffffffff, /* Dst_mask. */ 994 FALSE), /* PCrel_offset. */ 995 996 /* Simple 16bit reloc. */ 997 HOWTO (R_V850_16, /* Type. */ 998 0, /* Rightshift. */ 999 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1000 16, /* Bitsize. */ 1001 FALSE, /* PC_relative. */ 1002 0, /* Bitpos. */ 1003 complain_overflow_dont, /* Complain_on_overflow. */ 1004 bfd_elf_generic_reloc, /* Special_function. */ 1005 "R_V850_16", /* Name. */ 1006 FALSE, /* Partial_inplace. */ 1007 0xffff, /* Src_mask. */ 1008 0xffff, /* Dst_mask. */ 1009 FALSE), /* PCrel_offset. */ 1010 1011 /* Simple 8bit reloc. */ 1012 HOWTO (R_V850_8, /* Type. */ 1013 0, /* Rightshift. */ 1014 0, /* Size (0 = byte, 1 = short, 2 = long). */ 1015 8, /* Bitsize. */ 1016 FALSE, /* PC_relative. */ 1017 0, /* Bitpos. */ 1018 complain_overflow_dont, /* Complain_on_overflow. */ 1019 bfd_elf_generic_reloc, /* Special_function. */ 1020 "R_V850_8", /* Name. */ 1021 FALSE, /* Partial_inplace. */ 1022 0xff, /* Src_mask. */ 1023 0xff, /* Dst_mask. */ 1024 FALSE), /* PCrel_offset. */ 1025 1026 /* 16 bit offset from the short data area pointer. */ 1027 HOWTO (R_V850_SDA_16_16_OFFSET, /* Type. */ 1028 0, /* Rightshift. */ 1029 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1030 16, /* Bitsize. */ 1031 FALSE, /* PC_relative. */ 1032 0, /* Bitpos. */ 1033 complain_overflow_dont, /* Complain_on_overflow. */ 1034 v850_elf_reloc, /* Special_function. */ 1035 "R_V850_SDA_16_16_OFFSET", /* Name. */ 1036 FALSE, /* Partial_inplace. */ 1037 0xffff, /* Src_mask. */ 1038 0xffff, /* Dst_mask. */ 1039 FALSE), /* PCrel_offset. */ 1040 1041 /* 15 bit offset from the short data area pointer. */ 1042 HOWTO (R_V850_SDA_15_16_OFFSET, /* Type. */ 1043 1, /* Rightshift. */ 1044 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1045 16, /* Bitsize. */ 1046 FALSE, /* PC_relative. */ 1047 1, /* Bitpos. */ 1048 complain_overflow_dont, /* Complain_on_overflow. */ 1049 v850_elf_reloc, /* Special_function. */ 1050 "R_V850_SDA_15_16_OFFSET", /* Name. */ 1051 FALSE, /* Partial_inplace. */ 1052 0xfffe, /* Src_mask. */ 1053 0xfffe, /* Dst_mask. */ 1054 FALSE), /* PCrel_offset. */ 1055 1056 /* 16 bit offset from the zero data area pointer. */ 1057 HOWTO (R_V850_ZDA_16_16_OFFSET, /* Type. */ 1058 0, /* Rightshift. */ 1059 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1060 16, /* Bitsize. */ 1061 FALSE, /* PC_relative. */ 1062 0, /* Bitpos. */ 1063 complain_overflow_dont, /* Complain_on_overflow. */ 1064 v850_elf_reloc, /* Special_function. */ 1065 "R_V850_ZDA_16_16_OFFSET", /* Name. */ 1066 FALSE, /* Partial_inplace. */ 1067 0xffff, /* Src_mask. */ 1068 0xffff, /* Dst_mask. */ 1069 FALSE), /* PCrel_offset. */ 1070 1071 /* 15 bit offset from the zero data area pointer. */ 1072 HOWTO (R_V850_ZDA_15_16_OFFSET, /* Type. */ 1073 1, /* Rightshift. */ 1074 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1075 16, /* Bitsize. */ 1076 FALSE, /* PC_relative. */ 1077 1, /* Bitpos. */ 1078 complain_overflow_dont, /* Complain_on_overflow. */ 1079 v850_elf_reloc, /* Special_function. */ 1080 "R_V850_ZDA_15_16_OFFSET", /* Name. */ 1081 FALSE, /* Partial_inplace. */ 1082 0xfffe, /* Src_mask. */ 1083 0xfffe, /* Dst_mask. */ 1084 FALSE), /* PCrel_offset. */ 1085 1086 /* 6 bit offset from the tiny data area pointer. */ 1087 HOWTO (R_V850_TDA_6_8_OFFSET, /* Type. */ 1088 2, /* Rightshift. */ 1089 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1090 8, /* Bitsize. */ 1091 FALSE, /* PC_relative. */ 1092 1, /* Bitpos. */ 1093 complain_overflow_dont, /* Complain_on_overflow. */ 1094 v850_elf_reloc, /* Special_function. */ 1095 "R_V850_TDA_6_8_OFFSET", /* Name. */ 1096 FALSE, /* Partial_inplace. */ 1097 0x7e, /* Src_mask. */ 1098 0x7e, /* Dst_mask. */ 1099 FALSE), /* PCrel_offset. */ 1100 1101 /* 8 bit offset from the tiny data area pointer. */ 1102 HOWTO (R_V850_TDA_7_8_OFFSET, /* Type. */ 1103 1, /* Rightshift. */ 1104 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1105 8, /* Bitsize. */ 1106 FALSE, /* PC_relative. */ 1107 0, /* Bitpos. */ 1108 complain_overflow_dont, /* Complain_on_overflow. */ 1109 v850_elf_reloc, /* Special_function. */ 1110 "R_V850_TDA_7_8_OFFSET", /* Name. */ 1111 FALSE, /* Partial_inplace. */ 1112 0x7f, /* Src_mask. */ 1113 0x7f, /* Dst_mask. */ 1114 FALSE), /* PCrel_offset. */ 1115 1116 /* 7 bit offset from the tiny data area pointer. */ 1117 HOWTO (R_V850_TDA_7_7_OFFSET, /* Type. */ 1118 0, /* Rightshift. */ 1119 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1120 7, /* Bitsize. */ 1121 FALSE, /* PC_relative. */ 1122 0, /* Bitpos. */ 1123 complain_overflow_dont, /* Complain_on_overflow. */ 1124 v850_elf_reloc, /* Special_function. */ 1125 "R_V850_TDA_7_7_OFFSET", /* Name. */ 1126 FALSE, /* Partial_inplace. */ 1127 0x7f, /* Src_mask. */ 1128 0x7f, /* Dst_mask. */ 1129 FALSE), /* PCrel_offset. */ 1130 1131 /* 16 bit offset from the tiny data area pointer! */ 1132 HOWTO (R_V850_TDA_16_16_OFFSET, /* Type. */ 1133 0, /* Rightshift. */ 1134 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1135 16, /* Bitsize. */ 1136 FALSE, /* PC_relative. */ 1137 0, /* Bitpos. */ 1138 complain_overflow_dont, /* Complain_on_overflow. */ 1139 v850_elf_reloc, /* Special_function. */ 1140 "R_V850_TDA_16_16_OFFSET", /* Name. */ 1141 FALSE, /* Partial_inplace. */ 1142 0xffff, /* Src_mask. */ 1143 0xfff, /* Dst_mask. */ 1144 FALSE), /* PCrel_offset. */ 1145 1146 /* 5 bit offset from the tiny data area pointer. */ 1147 HOWTO (R_V850_TDA_4_5_OFFSET, /* Type. */ 1148 1, /* Rightshift. */ 1149 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1150 5, /* Bitsize. */ 1151 FALSE, /* PC_relative. */ 1152 0, /* Bitpos. */ 1153 complain_overflow_dont, /* Complain_on_overflow. */ 1154 v850_elf_reloc, /* Special_function. */ 1155 "R_V850_TDA_4_5_OFFSET", /* Name. */ 1156 FALSE, /* Partial_inplace. */ 1157 0x0f, /* Src_mask. */ 1158 0x0f, /* Dst_mask. */ 1159 FALSE), /* PCrel_offset. */ 1160 1161 /* 4 bit offset from the tiny data area pointer. */ 1162 HOWTO (R_V850_TDA_4_4_OFFSET, /* Type. */ 1163 0, /* Rightshift. */ 1164 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1165 4, /* Bitsize. */ 1166 FALSE, /* PC_relative. */ 1167 0, /* Bitpos. */ 1168 complain_overflow_dont, /* Complain_on_overflow. */ 1169 v850_elf_reloc, /* Special_function. */ 1170 "R_V850_TDA_4_4_OFFSET", /* Name. */ 1171 FALSE, /* Partial_inplace. */ 1172 0x0f, /* Src_mask. */ 1173 0x0f, /* Dst_mask. */ 1174 FALSE), /* PCrel_offset. */ 1175 1176 /* 16 bit offset from the short data area pointer. */ 1177 HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* Type. */ 1178 0, /* Rightshift. */ 1179 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1180 16, /* Bitsize. */ 1181 FALSE, /* PC_relative. */ 1182 0, /* Bitpos. */ 1183 complain_overflow_dont, /* Complain_on_overflow. */ 1184 v850_elf_reloc, /* Special_function. */ 1185 "R_V850_SDA_16_16_SPLIT_OFFSET",/* Name. */ 1186 FALSE, /* Partial_inplace. */ 1187 0xfffe0020, /* Src_mask. */ 1188 0xfffe0020, /* Dst_mask. */ 1189 FALSE), /* PCrel_offset. */ 1190 1191 /* 16 bit offset from the zero data area pointer. */ 1192 HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* Type. */ 1193 0, /* Rightshift. */ 1194 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1195 16, /* Bitsize. */ 1196 FALSE, /* PC_relative. */ 1197 0, /* Bitpos. */ 1198 complain_overflow_dont, /* Complain_on_overflow. */ 1199 v850_elf_reloc, /* Special_function. */ 1200 "R_V850_ZDA_16_16_SPLIT_OFFSET",/* Name. */ 1201 FALSE, /* Partial_inplace. */ 1202 0xfffe0020, /* Src_mask. */ 1203 0xfffe0020, /* Dst_mask. */ 1204 FALSE), /* PCrel_offset. */ 1205 1206 /* 6 bit offset from the call table base pointer. */ 1207 HOWTO (R_V850_CALLT_6_7_OFFSET, /* Type. */ 1208 0, /* Rightshift. */ 1209 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1210 7, /* Bitsize. */ 1211 FALSE, /* PC_relative. */ 1212 0, /* Bitpos. */ 1213 complain_overflow_dont, /* Complain_on_overflow. */ 1214 v850_elf_reloc, /* Special_function. */ 1215 "R_V850_CALLT_6_7_OFFSET", /* Name. */ 1216 FALSE, /* Partial_inplace. */ 1217 0x3f, /* Src_mask. */ 1218 0x3f, /* Dst_mask. */ 1219 FALSE), /* PCrel_offset. */ 1220 1221 /* 16 bit offset from the call table base pointer. */ 1222 HOWTO (R_V850_CALLT_16_16_OFFSET, /* Type. */ 1223 0, /* Rightshift. */ 1224 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1225 16, /* Bitsize. */ 1226 FALSE, /* PC_relative. */ 1227 0, /* Bitpos. */ 1228 complain_overflow_dont, /* Complain_on_overflow. */ 1229 v850_elf_reloc, /* Special_function. */ 1230 "R_V850_CALLT_16_16_OFFSET", /* Name. */ 1231 FALSE, /* Partial_inplace. */ 1232 0xffff, /* Src_mask. */ 1233 0xffff, /* Dst_mask. */ 1234 FALSE), /* PCrel_offset. */ 1235 1236 1237 /* GNU extension to record C++ vtable hierarchy */ 1238 HOWTO (R_V850_GNU_VTINHERIT, /* Type. */ 1239 0, /* Rightshift. */ 1240 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1241 0, /* Bitsize. */ 1242 FALSE, /* PC_relative. */ 1243 0, /* Bitpos. */ 1244 complain_overflow_dont, /* Complain_on_overflow. */ 1245 NULL, /* Special_function. */ 1246 "R_V850_GNU_VTINHERIT", /* Name. */ 1247 FALSE, /* Partial_inplace. */ 1248 0, /* Src_mask. */ 1249 0, /* Dst_mask. */ 1250 FALSE), /* PCrel_offset. */ 1251 1252 /* GNU extension to record C++ vtable member usage. */ 1253 HOWTO (R_V850_GNU_VTENTRY, /* Type. */ 1254 0, /* Rightshift. */ 1255 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1256 0, /* Bitsize. */ 1257 FALSE, /* PC_relative. */ 1258 0, /* Bitpos. */ 1259 complain_overflow_dont, /* Complain_on_overflow. */ 1260 _bfd_elf_rel_vtable_reloc_fn, /* Special_function. */ 1261 "R_V850_GNU_VTENTRY", /* Name. */ 1262 FALSE, /* Partial_inplace. */ 1263 0, /* Src_mask. */ 1264 0, /* Dst_mask. */ 1265 FALSE), /* PCrel_offset. */ 1266 1267 /* Indicates a .longcall pseudo-op. The compiler will generate a .longcall 1268 pseudo-op when it finds a function call which can be relaxed. */ 1269 HOWTO (R_V850_LONGCALL, /* Type. */ 1270 0, /* Rightshift. */ 1271 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1272 32, /* Bitsize. */ 1273 TRUE, /* PC_relative. */ 1274 0, /* Bitpos. */ 1275 complain_overflow_signed, /* Complain_on_overflow. */ 1276 v850_elf_ignore_reloc, /* Special_function. */ 1277 "R_V850_LONGCALL", /* Name. */ 1278 FALSE, /* Partial_inplace. */ 1279 0, /* Src_mask. */ 1280 0, /* Dst_mask. */ 1281 TRUE), /* PCrel_offset. */ 1282 1283 /* Indicates a .longjump pseudo-op. The compiler will generate a 1284 .longjump pseudo-op when it finds a branch which can be relaxed. */ 1285 HOWTO (R_V850_LONGJUMP, /* Type. */ 1286 0, /* Rightshift. */ 1287 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1288 32, /* Bitsize. */ 1289 TRUE, /* PC_relative. */ 1290 0, /* Bitpos. */ 1291 complain_overflow_signed, /* Complain_on_overflow. */ 1292 v850_elf_ignore_reloc, /* Special_function. */ 1293 "R_V850_LONGJUMP", /* Name. */ 1294 FALSE, /* Partial_inplace. */ 1295 0, /* Src_mask. */ 1296 0, /* Dst_mask. */ 1297 TRUE), /* PCrel_offset. */ 1298 1299 HOWTO (R_V850_ALIGN, /* Type. */ 1300 0, /* Rightshift. */ 1301 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1302 0, /* Bitsize. */ 1303 FALSE, /* PC_relative. */ 1304 0, /* Bitpos. */ 1305 complain_overflow_unsigned, /* Complain_on_overflow. */ 1306 v850_elf_ignore_reloc, /* Special_function. */ 1307 "R_V850_ALIGN", /* Name. */ 1308 FALSE, /* Partial_inplace. */ 1309 0, /* Src_mask. */ 1310 0, /* Dst_mask. */ 1311 TRUE), /* PCrel_offset. */ 1312 1313 /* Simple pc-relative 32bit reloc. */ 1314 HOWTO (R_V850_REL32, /* Type. */ 1315 0, /* Rightshift. */ 1316 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1317 32, /* Bitsize. */ 1318 TRUE, /* PC_relative. */ 1319 0, /* Bitpos. */ 1320 complain_overflow_dont, /* Complain_on_overflow. */ 1321 v850_elf_reloc, /* Special_function. */ 1322 "R_V850_REL32", /* Name. */ 1323 FALSE, /* Partial_inplace. */ 1324 0xffffffff, /* Src_mask. */ 1325 0xffffffff, /* Dst_mask. */ 1326 FALSE), /* PCrel_offset. */ 1327 1328 /* An ld.bu version of R_V850_LO16. */ 1329 HOWTO (R_V850_LO16_SPLIT_OFFSET, /* Type. */ 1330 0, /* Rightshift. */ 1331 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1332 16, /* Bitsize. */ 1333 FALSE, /* PC_relative. */ 1334 0, /* Bitpos. */ 1335 complain_overflow_dont, /* Complain_on_overflow. */ 1336 v850_elf_reloc, /* Special_function. */ 1337 "R_V850_LO16_SPLIT_OFFSET", /* Name. */ 1338 FALSE, /* Partial_inplace. */ 1339 0xfffe0020, /* Src_mask. */ 1340 0xfffe0020, /* Dst_mask. */ 1341 FALSE), /* PCrel_offset. */ 1342 1343 /* A unsigned PC relative 16 bit loop. */ 1344 HOWTO (R_V850_16_PCREL, /* Type. */ 1345 0, /* Rightshift. */ 1346 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1347 16, /* Bitsize. */ 1348 TRUE, /* PC_relative. */ 1349 0, /* Bitpos. */ 1350 complain_overflow_bitfield, /* Complain_on_overflow. */ 1351 v850_elf_reloc, /* Special_function. */ 1352 "R_V850_16_PCREL", /* Name. */ 1353 FALSE, /* Partial_inplace. */ 1354 0xfffe, /* Src_mask. */ 1355 0xfffe, /* Dst_mask. */ 1356 TRUE), /* PCrel_offset. */ 1357 1358 /* A PC relative 17 bit branch. */ 1359 HOWTO (R_V850_17_PCREL, /* Type. */ 1360 0, /* Rightshift. */ 1361 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1362 17, /* Bitsize. */ 1363 TRUE, /* PC_relative. */ 1364 0, /* Bitpos. */ 1365 complain_overflow_bitfield, /* Complain_on_overflow. */ 1366 v850_elf_reloc, /* Special_function. */ 1367 "R_V850_17_PCREL", /* Name. */ 1368 FALSE, /* Partial_inplace. */ 1369 0x0010fffe, /* Src_mask. */ 1370 0x0010fffe, /* Dst_mask. */ 1371 TRUE), /* PCrel_offset. */ 1372 1373 /* A 23bit offset ld/st. */ 1374 HOWTO (R_V850_23, /* type. */ 1375 0, /* rightshift. */ 1376 2, /* size (0 = byte, 1 = short, 2 = long). */ 1377 23, /* bitsize. */ 1378 FALSE, /* pc_relative. */ 1379 0, /* bitpos. */ 1380 complain_overflow_dont, /* complain_on_overflow. */ 1381 v850_elf_reloc, /* special_function. */ 1382 "R_V850_23", /* name. */ 1383 FALSE, /* partial_inplace. */ 1384 0xffff07f0, /* src_mask. */ 1385 0xffff07f0, /* dst_mask. */ 1386 FALSE), /* pcrel_offset. */ 1387 1388 /* A PC relative 32 bit branch. */ 1389 HOWTO (R_V850_32_PCREL, /* type. */ 1390 1, /* rightshift. */ 1391 2, /* size (0 = byte, 1 = short, 2 = long). */ 1392 32, /* bitsize. */ 1393 TRUE, /* pc_relative. */ 1394 1, /* bitpos. */ 1395 complain_overflow_signed, /* complain_on_overflow. */ 1396 v850_elf_reloc, /* special_function. */ 1397 "R_V850_32_PCREL", /* name. */ 1398 FALSE, /* partial_inplace. */ 1399 0xfffffffe, /* src_mask. */ 1400 0xfffffffe, /* dst_mask. */ 1401 TRUE), /* pcrel_offset. */ 1402 1403 /* A absolute 32 bit branch. */ 1404 HOWTO (R_V850_32_ABS, /* type. */ 1405 1, /* rightshift. */ 1406 2, /* size (0 = byte, 1 = short, 2 = long). */ 1407 32, /* bitsize. */ 1408 TRUE, /* pc_relative. */ 1409 1, /* bitpos. */ 1410 complain_overflow_signed, /* complain_on_overflow. */ 1411 v850_elf_reloc, /* special_function. */ 1412 "R_V850_32_ABS", /* name. */ 1413 FALSE, /* partial_inplace. */ 1414 0xfffffffe, /* src_mask. */ 1415 0xfffffffe, /* dst_mask. */ 1416 FALSE), /* pcrel_offset. */ 1417 1418 /* High 16 bits of symbol value. */ 1419 HOWTO (R_V850_HI16, /* Type. */ 1420 0, /* Rightshift. */ 1421 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1422 16, /* Bitsize. */ 1423 FALSE, /* PC_relative. */ 1424 0, /* Bitpos. */ 1425 complain_overflow_dont, /* Complain_on_overflow. */ 1426 v850_elf_reloc, /* Special_function. */ 1427 "R_V850_HI16", /* Name. */ 1428 FALSE, /* Partial_inplace. */ 1429 0xffff, /* Src_mask. */ 1430 0xffff, /* Dst_mask. */ 1431 FALSE), /* PCrel_offset. */ 1432 1433 /* Low 16 bits of symbol value. */ 1434 HOWTO (R_V850_16_S1, /* type. */ 1435 1, /* rightshift. */ 1436 1, /* size (0 = byte, 1 = short, 2 = long). */ 1437 16, /* bitsize. */ 1438 FALSE, /* pc_relative. */ 1439 1, /* bitpos. */ 1440 complain_overflow_dont, /* complain_on_overflow. */ 1441 v850_elf_reloc, /* special_function. */ 1442 "R_V850_16_S1", /* name. */ 1443 FALSE, /* partial_inplace. */ 1444 0xfffe, /* src_mask. */ 1445 0xfffe, /* dst_mask. */ 1446 FALSE), /* pcrel_offset. */ 1447 1448 /* Low 16 bits of symbol value. */ 1449 HOWTO (R_V850_LO16_S1, /* type. */ 1450 1, /* rightshift. */ 1451 1, /* size (0 = byte, 1 = short, 2 = long). */ 1452 16, /* bitsize. */ 1453 FALSE, /* pc_relative. */ 1454 1, /* bitpos. */ 1455 complain_overflow_dont, /* complain_on_overflow. */ 1456 v850_elf_reloc, /* special_function. */ 1457 "R_V850_LO16_S1", /* name. */ 1458 FALSE, /* partial_inplace. */ 1459 0xfffe, /* src_mask. */ 1460 0xfffe, /* dst_mask. */ 1461 FALSE), /* pcrel_offset. */ 1462 1463 /* 16 bit offset from the call table base pointer. */ 1464 HOWTO (R_V850_CALLT_15_16_OFFSET, /* type. */ 1465 1, /* rightshift. */ 1466 1, /* size (0 = byte, 1 = short, 2 = long). */ 1467 16, /* bitsize. */ 1468 FALSE, /* pc_relative. */ 1469 1, /* bitpos. */ 1470 complain_overflow_dont, /* complain_on_overflow. */ 1471 v850_elf_reloc, /* special_function. */ 1472 "R_V850_CALLT_15_16_OFFSET", /* name. */ 1473 FALSE, /* partial_inplace. */ 1474 0xfffe, /* src_mask. */ 1475 0xfffe, /* dst_mask. */ 1476 FALSE), /* pcrel_offset. */ 1477 1478 /* Like R_V850_32 PCREL, but referring to the GOT table entry for 1479 the symbol. */ 1480 HOWTO (R_V850_32_GOTPCREL, /* type. */ 1481 0, /* rightshift. */ 1482 2, /* size (0 = byte, 1 = short, 2 = long). */ 1483 32, /* bitsize. */ 1484 TRUE, /* pc_relative. */ 1485 0, /* bitpos. */ 1486 complain_overflow_unsigned, /* complain_on_overflow. */ 1487 v850_elf_reloc, /* special_function. */ 1488 "R_V850_32_GOTPCREL", /* name. */ 1489 FALSE, /* partial_inplace. */ 1490 0xffffffff, /* src_mask. */ 1491 0xffffffff, /* dst_mask. */ 1492 TRUE), /* pcrel_offset. */ 1493 1494 /* Like R_V850_SDA_, but referring to the GOT table entry for 1495 the symbol. */ 1496 HOWTO (R_V850_16_GOT, /* type. */ 1497 0, /* rightshift. */ 1498 2, /* size (0 = byte, 1 = short, 2 = long). */ 1499 16, /* bitsize. */ 1500 FALSE, /* pc_relative. */ 1501 0, /* bitpos. */ 1502 complain_overflow_unsigned, /* complain_on_overflow. */ 1503 bfd_elf_generic_reloc, /* special_function. */ 1504 "R_V850_16_GOT", /* name. */ 1505 FALSE, /* partial_inplace. */ 1506 0xffff, /* src_mask. */ 1507 0xffff, /* dst_mask. */ 1508 FALSE), /* pcrel_offset. */ 1509 1510 HOWTO (R_V850_32_GOT, /* type. */ 1511 0, /* rightshift. */ 1512 2, /* size (0 = byte, 1 = short, 2 = long). */ 1513 32, /* bitsize. */ 1514 FALSE, /* pc_relative. */ 1515 0, /* bitpos. */ 1516 complain_overflow_unsigned, /* complain_on_overflow. */ 1517 bfd_elf_generic_reloc, /* special_function. */ 1518 "R_V850_32_GOT", /* name. */ 1519 FALSE, /* partial_inplace. */ 1520 0xffffffff, /* src_mask. */ 1521 0xffffffff, /* dst_mask. */ 1522 FALSE), /* pcrel_offset. */ 1523 1524 /* Like R_V850_22_PCREL, but referring to the procedure linkage table 1525 entry for the symbol. */ 1526 HOWTO (R_V850_22_PLT, /* type. */ 1527 1, /* rightshift. */ 1528 2, /* size (0 = byte, 1 = short, 2 = long). */ 1529 22, /* bitsize. */ 1530 TRUE, /* pc_relative. */ 1531 7, /* bitpos. */ 1532 complain_overflow_signed, /* complain_on_overflow. */ 1533 bfd_elf_generic_reloc, /* special_function. */ 1534 "R_V850_22_PLT", /* name. */ 1535 FALSE, /* partial_inplace. */ 1536 0x07ffff80, /* src_mask. */ 1537 0x07ffff80, /* dst_mask. */ 1538 TRUE), /* pcrel_offset. */ 1539 1540 HOWTO (R_V850_32_PLT, /* type. */ 1541 1, /* rightshift. */ 1542 2, /* size (0 = byte, 1 = short, 2 = long). */ 1543 32, /* bitsize. */ 1544 TRUE, /* pc_relative. */ 1545 1, /* bitpos. */ 1546 complain_overflow_signed, /* complain_on_overflow. */ 1547 bfd_elf_generic_reloc, /* special_function. */ 1548 "R_V850_32_PLT", /* name. */ 1549 FALSE, /* partial_inplace. */ 1550 0xffffffff, /* src_mask. */ 1551 0xffffffff, /* dst_mask. */ 1552 TRUE), /* pcrel_offset. */ 1553 1554 /* This is used only by the dynamic linker. The symbol should exist 1555 both in the object being run and in some shared library. The 1556 dynamic linker copies the data addressed by the symbol from the 1557 shared library into the object, because the object being 1558 run has to have the data at some particular address. */ 1559 HOWTO (R_V850_COPY, /* type. */ 1560 0, /* rightshift. */ 1561 2, /* size (0 = byte, 1 = short, 2 = long). */ 1562 32, /* bitsize. */ 1563 FALSE, /* pc_relative. */ 1564 0, /* bitpos. */ 1565 complain_overflow_bitfield, /* complain_on_overflow. */ 1566 bfd_elf_generic_reloc, /* special_function. */ 1567 "R_V850_COPY", /* name. */ 1568 FALSE, /* partial_inplace. */ 1569 0xffffffff, /* src_mask. */ 1570 0xffffffff, /* dst_mask. */ 1571 FALSE), /* pcrel_offset. */ 1572 1573 /* Like R_M32R_24, but used when setting global offset table 1574 entries. */ 1575 HOWTO (R_V850_GLOB_DAT, /* type. */ 1576 0, /* rightshift. */ 1577 2, /* size (0 = byte, 1 = short, 2 = long) */ 1578 32, /* bitsize. */ 1579 FALSE, /* pc_relative. */ 1580 0, /* bitpos. */ 1581 complain_overflow_bitfield, /* complain_on_overflow. */ 1582 bfd_elf_generic_reloc, /* special_function. */ 1583 "R_V850_GLOB_DAT", /* name. */ 1584 FALSE, /* partial_inplace. */ 1585 0xffffffff, /* src_mask. */ 1586 0xffffffff, /* dst_mask. */ 1587 FALSE), /* pcrel_offset. */ 1588 1589 /* Marks a procedure linkage table entry for a symbol. */ 1590 HOWTO (R_V850_JMP_SLOT, /* type. */ 1591 0, /* rightshift. */ 1592 2, /* size (0 = byte, 1 = short, 2 = long) */ 1593 32, /* bitsize. */ 1594 FALSE, /* pc_relative. */ 1595 0, /* bitpos. */ 1596 complain_overflow_bitfield, /* complain_on_overflow. */ 1597 bfd_elf_generic_reloc, /* special_function. */ 1598 "R_V850_JMP_SLOT", /* name. */ 1599 FALSE, /* partial_inplace. */ 1600 0xffffffff, /* src_mask. */ 1601 0xffffffff, /* dst_mask. */ 1602 FALSE), /* pcrel_offset. */ 1603 1604 /* Used only by the dynamic linker. When the object is run, this 1605 longword is set to the load address of the object, plus the 1606 addend. */ 1607 HOWTO (R_V850_RELATIVE, /* type. */ 1608 0, /* rightshift. */ 1609 2, /* size (0 = byte, 1 = short, 2 = long) */ 1610 32, /* bitsize. */ 1611 FALSE, /* pc_relative. */ 1612 0, /* bitpos. */ 1613 complain_overflow_bitfield, /* complain_on_overflow. */ 1614 bfd_elf_generic_reloc, /* special_function. */ 1615 "R_V850_RELATIVE", /* name. */ 1616 FALSE, /* partial_inplace. */ 1617 0xffffffff, /* src_mask. */ 1618 0xffffffff, /* dst_mask. */ 1619 FALSE), /* pcrel_offset. */ 1620 1621 HOWTO (R_V850_16_GOTOFF, /* type. */ 1622 0, /* rightshift. */ 1623 2, /* size (0 = byte, 1 = short, 2 = long) */ 1624 16, /* bitsize. */ 1625 FALSE, /* pc_relative. */ 1626 0, /* bitpos. */ 1627 complain_overflow_bitfield, /* complain_on_overflow. */ 1628 bfd_elf_generic_reloc, /* special_function. */ 1629 "R_V850_16_GOTOFF", /* name. */ 1630 FALSE, /* partial_inplace. */ 1631 0xffff, /* src_mask. */ 1632 0xffff, /* dst_mask. */ 1633 FALSE), /* pcrel_offset. */ 1634 1635 HOWTO (R_V850_32_GOTOFF, /* type. */ 1636 0, /* rightshift. */ 1637 2, /* size (0 = byte, 1 = short, 2 = long) */ 1638 32, /* bitsize. */ 1639 FALSE, /* pc_relative. */ 1640 0, /* bitpos. */ 1641 complain_overflow_bitfield, /* complain_on_overflow. */ 1642 bfd_elf_generic_reloc, /* special_function. */ 1643 "R_V850_32_GOTOFF", /* name. */ 1644 FALSE, /* partial_inplace. */ 1645 0xffffffff, /* src_mask. */ 1646 0xffffffff, /* dst_mask. */ 1647 FALSE), /* pcrel_offset. */ 1648 1649 HOWTO (R_V850_CODE, /* type. */ 1650 0, /* rightshift. */ 1651 1, /* size (0 = byte, 1 = short, 2 = long) */ 1652 0, /* bitsize. */ 1653 FALSE, /* pc_relative. */ 1654 0, /* bitpos. */ 1655 complain_overflow_unsigned, /* complain_on_overflow. */ 1656 v850_elf_ignore_reloc, /* special_function. */ 1657 "R_V850_CODE", /* name. */ 1658 FALSE, /* partial_inplace. */ 1659 0, /* src_mask. */ 1660 0, /* dst_mask. */ 1661 TRUE), /* pcrel_offset. */ 1662 1663 HOWTO (R_V850_DATA, /* type. */ 1664 0, /* rightshift. */ 1665 1, /* size (0 = byte, 1 = short, 2 = long) */ 1666 0, /* bitsize. */ 1667 FALSE, /* pc_relative. */ 1668 0, /* bitpos. */ 1669 complain_overflow_unsigned, /* complain_on_overflow. */ 1670 v850_elf_ignore_reloc, /* special_function. */ 1671 "R_V850_DATA", /* name. */ 1672 FALSE, /* partial_inplace. */ 1673 0, /* src_mask. */ 1674 0, /* dst_mask. */ 1675 TRUE), /* pcrel_offset. */ 1676 1677 }; 1678 1679 /* Map BFD reloc types to V850 ELF reloc types. */ 1680 1681 struct v850_elf_reloc_map 1682 { 1683 /* BFD_RELOC_V850_CALLT_16_16_OFFSET is 258, which will not fix in an 1684 unsigned char. */ 1685 bfd_reloc_code_real_type bfd_reloc_val; 1686 unsigned int elf_reloc_val; 1687 }; 1688 1689 static const struct v850_elf_reloc_map v850_elf_reloc_map[] = 1690 { 1691 { BFD_RELOC_NONE, R_V850_NONE }, 1692 { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL }, 1693 { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL }, 1694 { BFD_RELOC_HI16_S, R_V850_HI16_S }, 1695 { BFD_RELOC_HI16, R_V850_HI16 }, 1696 { BFD_RELOC_LO16, R_V850_LO16 }, 1697 { BFD_RELOC_32, R_V850_ABS32 }, 1698 { BFD_RELOC_32_PCREL, R_V850_REL32 }, 1699 { BFD_RELOC_16, R_V850_16 }, 1700 { BFD_RELOC_8, R_V850_8 }, 1701 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET }, 1702 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET }, 1703 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET }, 1704 { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET }, 1705 { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET }, 1706 { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET }, 1707 { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET }, 1708 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET }, 1709 { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET }, 1710 { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET }, 1711 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_LO16_SPLIT_OFFSET }, 1712 { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET }, 1713 { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET }, 1714 { BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET }, 1715 { BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET }, 1716 { BFD_RELOC_VTABLE_INHERIT, R_V850_GNU_VTINHERIT }, 1717 { BFD_RELOC_VTABLE_ENTRY, R_V850_GNU_VTENTRY }, 1718 { BFD_RELOC_V850_LONGCALL, R_V850_LONGCALL }, 1719 { BFD_RELOC_V850_LONGJUMP, R_V850_LONGJUMP }, 1720 { BFD_RELOC_V850_ALIGN, R_V850_ALIGN }, 1721 { BFD_RELOC_V850_16_PCREL, R_V850_16_PCREL }, 1722 { BFD_RELOC_V850_17_PCREL, R_V850_17_PCREL }, 1723 { BFD_RELOC_V850_23, R_V850_23 }, 1724 { BFD_RELOC_V850_32_PCREL, R_V850_32_PCREL }, 1725 { BFD_RELOC_V850_32_ABS, R_V850_32_ABS }, 1726 { BFD_RELOC_V850_16_SPLIT_OFFSET, R_V850_HI16 }, 1727 { BFD_RELOC_V850_16_S1, R_V850_16_S1 }, 1728 { BFD_RELOC_V850_LO16_S1, R_V850_LO16_S1 }, 1729 { BFD_RELOC_V850_CALLT_15_16_OFFSET, R_V850_CALLT_15_16_OFFSET }, 1730 { BFD_RELOC_V850_32_GOTPCREL, R_V850_32_GOTPCREL }, 1731 { BFD_RELOC_V850_16_GOT, R_V850_16_GOT }, 1732 { BFD_RELOC_V850_32_GOT, R_V850_32_GOT }, 1733 { BFD_RELOC_V850_22_PLT_PCREL, R_V850_22_PLT }, 1734 { BFD_RELOC_V850_32_PLT_PCREL, R_V850_32_PLT }, 1735 { BFD_RELOC_V850_COPY, R_V850_COPY }, 1736 { BFD_RELOC_V850_GLOB_DAT, R_V850_GLOB_DAT }, 1737 { BFD_RELOC_V850_JMP_SLOT, R_V850_JMP_SLOT }, 1738 { BFD_RELOC_V850_RELATIVE, R_V850_RELATIVE }, 1739 { BFD_RELOC_V850_16_GOTOFF, R_V850_16_GOTOFF }, 1740 { BFD_RELOC_V850_32_GOTOFF, R_V850_32_GOTOFF }, 1741 { BFD_RELOC_V850_CODE, R_V850_CODE }, 1742 { BFD_RELOC_V850_DATA, R_V850_DATA }, 1743 }; 1744 1745 #define V800_RELOC(name,sz,bit,shift,complain,pcrel,resolver) \ 1746 HOWTO (name, shift, sz, bit, pcrel, 0, complain_overflow_ ## complain, \ 1747 bfd_elf_ ## resolver ## _reloc, #name, FALSE, 0, ~0, FALSE) 1748 1749 #define V800_EMPTY(name) EMPTY_HOWTO (name - R_V810_NONE) 1750 1751 #define bfd_elf_v850_reloc v850_elf_reloc 1752 1753 /* Note: It is REQUIRED that the 'type' value (R_V810_...) of each entry 1754 in this array match the index of the entry in the array minus 0x30. 1755 See: bfd_elf_v850_relocate_section(), v800_elf_reloc_type_lookup() 1756 and v800_elf_info_to_howto(). */ 1757 1758 static reloc_howto_type v800_elf_howto_table[] = 1759 { 1760 V800_RELOC (R_V810_NONE, 0, 0, 0, dont, FALSE, generic), /* Type = 0x30 */ 1761 V800_RELOC (R_V810_BYTE, 0, 8, 0, dont, FALSE, generic), 1762 V800_RELOC (R_V810_HWORD, 1, 16, 0, dont, FALSE, generic), 1763 V800_RELOC (R_V810_WORD, 2, 32, 0, dont, FALSE, generic), 1764 V800_RELOC (R_V810_WLO, 1, 16, 0, dont, FALSE, generic), 1765 V800_RELOC (R_V810_WHI, 1, 16, 0, dont, FALSE, generic), 1766 V800_RELOC (R_V810_WHI1, 1, 16, 0, dont, FALSE, generic), 1767 V800_RELOC (R_V810_GPBYTE, 0, 8, 0, dont, FALSE, v850), 1768 V800_RELOC (R_V810_GPHWORD, 1, 16, 0, dont, FALSE, v850), 1769 V800_RELOC (R_V810_GPWORD, 2, 32, 0, dont, FALSE, v850), 1770 V800_RELOC (R_V810_GPWLO, 1, 16, 0, dont, FALSE, v850), 1771 V800_RELOC (R_V810_GPWHI, 1, 16, 0, dont, FALSE, v850), 1772 V800_RELOC (R_V810_GPWHI1, 1, 16, 0, dont, FALSE, v850), 1773 V800_RELOC (R_V850_HWLO, 1, 16, 0, dont, FALSE, generic), 1774 V800_EMPTY (R_V810_reserved1), 1775 V800_RELOC (R_V850_EP7BIT, 0, 7, 0, unsigned, FALSE, v850), 1776 V800_RELOC (R_V850_EPHBYTE, 0, 8, 1, unsigned, FALSE, v850), 1777 V800_RELOC (R_V850_EPWBYTE, 0, 8, 2, unsigned, FALSE, v850), 1778 V800_RELOC (R_V850_REGHWLO, 1, 16, 0, dont, FALSE, v850), 1779 V800_EMPTY (R_V810_reserved2), 1780 V800_RELOC (R_V850_GPHWLO, 1, 16, 0, dont, FALSE, v850), 1781 V800_EMPTY (R_V810_reserved3), 1782 V800_RELOC (R_V850_PCR22, 2, 22, 0, signed, TRUE, generic), 1783 V800_RELOC (R_V850_BLO, 2, 24, 0, dont, FALSE, v850), 1784 V800_RELOC (R_V850_EP4BIT, 0, 4, 0, unsigned, FALSE, v850), 1785 V800_RELOC (R_V850_EP5BIT, 0, 5, 0, unsigned, FALSE, v850), 1786 V800_RELOC (R_V850_REGBLO, 2, 24, 0, dont, FALSE, v850), 1787 V800_RELOC (R_V850_GPBLO, 2, 24, 0, dont, FALSE, v850), 1788 V800_RELOC (R_V810_WLO_1, 1, 16, 0, dont, FALSE, v850), 1789 V800_RELOC (R_V810_GPWLO_1, 1, 16, 0, signed, FALSE, v850), 1790 V800_RELOC (R_V850_BLO_1, 2, 16, 0, signed, FALSE, v850), 1791 V800_RELOC (R_V850_HWLO_1, 1, 16, 0, signed, FALSE, v850), 1792 V800_EMPTY (R_V810_reserved4), 1793 V800_RELOC (R_V850_GPBLO_1, 2, 16, 1, signed, FALSE, v850), 1794 V800_RELOC (R_V850_GPHWLO_1, 1, 16, 1, signed, FALSE, v850), 1795 V800_EMPTY (R_V810_reserved5), 1796 V800_RELOC (R_V850_EPBLO, 2, 16, 1, signed, FALSE, v850), 1797 V800_RELOC (R_V850_EPHWLO, 1, 16, 1, signed, FALSE, v850), 1798 V800_EMPTY (R_V810_reserved6), 1799 V800_RELOC (R_V850_EPWLO_N, 1, 16, 1, signed, FALSE, v850), 1800 V800_RELOC (R_V850_PC32, 2, 32, 1, signed, TRUE, v850), 1801 V800_RELOC (R_V850_W23BIT, 2, 23, 1, signed, FALSE, v850), 1802 V800_RELOC (R_V850_GPW23BIT, 2, 23, 1, signed, FALSE, v850), 1803 V800_RELOC (R_V850_EPW23BIT, 2, 23, 1, signed, FALSE, v850), 1804 V800_RELOC (R_V850_B23BIT, 2, 23, 1, signed, FALSE, v850), 1805 V800_RELOC (R_V850_GPB23BIT, 2, 23, 1, signed, FALSE, v850), 1806 V800_RELOC (R_V850_EPB23BIT, 2, 23, 1, signed, FALSE, v850), 1807 V800_RELOC (R_V850_PC16U, 1, 16, 1, unsigned, TRUE, generic), 1808 V800_RELOC (R_V850_PC17, 2, 17, 1, signed, TRUE, generic), 1809 V800_RELOC (R_V850_DW8, 2, 8, 2, signed, FALSE, v850), 1810 V800_RELOC (R_V850_GPDW8, 2, 8, 2, signed, FALSE, v850), 1811 V800_RELOC (R_V850_EPDW8, 2, 8, 2, signed, FALSE, v850), 1812 V800_RELOC (R_V850_PC9, 1, 9, 3, signed, TRUE, v850), 1813 V800_RELOC (R_V810_REGBYTE, 0, 8, 0, dont, FALSE, v850), 1814 V800_RELOC (R_V810_REGHWORD, 1, 16, 0, dont, FALSE, v850), 1815 V800_RELOC (R_V810_REGWORD, 2, 32, 0, dont, FALSE, v850), 1816 V800_RELOC (R_V810_REGWLO, 1, 16, 0, dont, FALSE, v850), 1817 V800_RELOC (R_V810_REGWHI, 1, 16, 0, dont, FALSE, v850), 1818 V800_RELOC (R_V810_REGWHI1, 1, 16, 0, dont, FALSE, v850), 1819 V800_RELOC (R_V850_REGW23BIT, 2, 23, 1, signed, FALSE, v850), 1820 V800_RELOC (R_V850_REGB23BIT, 2, 23, 1, signed, FALSE, v850), 1821 V800_RELOC (R_V850_REGDW8, 2, 8, 2, signed, FALSE, v850), 1822 V800_RELOC (R_V810_EPBYTE, 0, 8, 0, dont, FALSE, v850), 1823 V800_RELOC (R_V810_EPHWORD, 1, 16, 0, dont, FALSE, v850), 1824 V800_RELOC (R_V810_EPWORD, 2, 32, 0, dont, FALSE, v850), 1825 V800_RELOC (R_V850_WLO23, 2, 32, 1, dont, FALSE, v850), 1826 V800_RELOC (R_V850_WORD_E, 2, 32, 1, dont, FALSE, v850), 1827 V800_RELOC (R_V850_REGWORD_E, 2, 32, 1, dont, FALSE, v850), 1828 V800_RELOC (R_V850_WORD, 2, 32, 0, dont, FALSE, v850), 1829 V800_RELOC (R_V850_GPWORD, 2, 32, 0, dont, FALSE, v850), 1830 V800_RELOC (R_V850_REGWORD, 2, 32, 0, dont, FALSE, v850), 1831 V800_RELOC (R_V850_EPWORD, 2, 32, 0, dont, FALSE, v850), 1832 V800_RELOC (R_V810_TPBYTE, 0, 8, 0, dont, FALSE, v850), 1833 V800_RELOC (R_V810_TPHWORD, 1, 16, 0, dont, FALSE, v850), 1834 V800_RELOC (R_V810_TPWORD, 2, 32, 0, dont, FALSE, v850), 1835 V800_RELOC (R_V810_TPWLO, 1, 16, 0, dont, FALSE, v850), 1836 V800_RELOC (R_V810_TPWHI, 1, 16, 0, dont, FALSE, v850), 1837 V800_RELOC (R_V810_TPWHI1, 1, 16, 0, dont, FALSE, v850), 1838 V800_RELOC (R_V850_TPHWLO, 1, 16, 1, dont, FALSE, v850), 1839 V800_RELOC (R_V850_TPBLO, 2, 24, 0, dont, FALSE, v850), 1840 V800_RELOC (R_V810_TPWLO_1, 1, 16, 0, signed, FALSE, v850), 1841 V800_RELOC (R_V850_TPBLO_1, 2, 16, 0, signed, FALSE, v850), 1842 V800_RELOC (R_V850_TPHWLO_1, 1, 16, 0, signed, FALSE, v850), 1843 V800_RELOC (R_V850_TP23BIT, 2, 23, 0, signed, FALSE, v850), 1844 V800_RELOC (R_V850_TPW23BIT, 2, 23, 0, signed, FALSE, v850), 1845 V800_RELOC (R_V850_TPDW8, 2, 8, 0, signed, FALSE, v850) 1846 }; 1847 1848 /* Map a bfd relocation into the appropriate howto structure. */ 1849 1850 static reloc_howto_type * 1851 v850_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, 1852 bfd_reloc_code_real_type code) 1853 { 1854 unsigned int i; 1855 1856 for (i = ARRAY_SIZE (v850_elf_reloc_map); i --;) 1857 if (v850_elf_reloc_map[i].bfd_reloc_val == code) 1858 { 1859 unsigned int elf_reloc_val = v850_elf_reloc_map[i].elf_reloc_val; 1860 1861 BFD_ASSERT (v850_elf_howto_table[elf_reloc_val].type == elf_reloc_val); 1862 1863 return v850_elf_howto_table + elf_reloc_val; 1864 } 1865 1866 return NULL; 1867 } 1868 1869 static reloc_howto_type * 1870 v850_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, 1871 const char *r_name) 1872 { 1873 unsigned int i; 1874 1875 for (i = 0; 1876 i < sizeof (v850_elf_howto_table) / sizeof (v850_elf_howto_table[0]); 1877 i++) 1878 if (v850_elf_howto_table[i].name != NULL 1879 && strcasecmp (v850_elf_howto_table[i].name, r_name) == 0) 1880 return &v850_elf_howto_table[i]; 1881 1882 return NULL; 1883 } 1884 1885 /* Set the howto pointer for an V850 ELF reloc. */ 1886 1887 static bfd_boolean 1888 v850_elf_info_to_howto_rel (bfd *abfd, 1889 arelent *cache_ptr, 1890 Elf_Internal_Rela *dst) 1891 { 1892 unsigned int r_type; 1893 1894 r_type = ELF32_R_TYPE (dst->r_info); 1895 if (r_type >= (unsigned int) R_V850_max) 1896 { 1897 /* xgettext:c-format */ 1898 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), 1899 abfd, r_type); 1900 bfd_set_error (bfd_error_bad_value); 1901 return FALSE; 1902 } 1903 cache_ptr->howto = &v850_elf_howto_table[r_type]; 1904 return TRUE; 1905 } 1906 1907 /* Set the howto pointer for a V850 ELF reloc (type RELA). */ 1908 1909 static bfd_boolean 1910 v850_elf_info_to_howto_rela (bfd *abfd, 1911 arelent * cache_ptr, 1912 Elf_Internal_Rela *dst) 1913 { 1914 unsigned int r_type; 1915 1916 r_type = ELF32_R_TYPE (dst->r_info); 1917 if (r_type >= (unsigned int) R_V850_max) 1918 { 1919 /* xgettext:c-format */ 1920 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), 1921 abfd, r_type); 1922 bfd_set_error (bfd_error_bad_value); 1923 return FALSE; 1924 } 1925 cache_ptr->howto = &v850_elf_howto_table[r_type]; 1926 return TRUE; 1927 } 1928 1929 static bfd_boolean 1930 v850_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name) 1931 { 1932 return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.')) 1933 || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_')); 1934 } 1935 1936 static bfd_boolean 1937 v850_elf_is_target_special_symbol (bfd *abfd, asymbol *sym) 1938 { 1939 return v850_elf_is_local_label_name (abfd, sym->name); 1940 } 1941 1942 /* We overload some of the bfd_reloc error codes for own purposes. */ 1943 #define bfd_reloc_gp_not_found bfd_reloc_other 1944 #define bfd_reloc_ep_not_found bfd_reloc_continue 1945 #define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1) 1946 1947 /* Perform a relocation as part of a final link. */ 1948 1949 static bfd_reloc_status_type 1950 v850_elf_final_link_relocate (reloc_howto_type *howto, 1951 bfd *input_bfd, 1952 bfd *output_bfd ATTRIBUTE_UNUSED, 1953 asection *input_section, 1954 bfd_byte *contents, 1955 bfd_vma offset, 1956 bfd_vma value, 1957 bfd_vma addend, 1958 struct bfd_link_info *info, 1959 asection *sym_sec, 1960 int is_local ATTRIBUTE_UNUSED) 1961 { 1962 unsigned int r_type = howto->type; 1963 bfd_byte *hit_data = contents + offset; 1964 1965 /* Adjust the value according to the relocation. */ 1966 switch (r_type) 1967 { 1968 case R_V850_PC9: 1969 case R_V850_9_PCREL: 1970 value -= (input_section->output_section->vma 1971 + input_section->output_offset); 1972 value -= offset; 1973 break; 1974 1975 case R_V850_PC16U: 1976 case R_V850_16_PCREL: 1977 value -= (input_section->output_section->vma 1978 + input_section->output_offset 1979 + offset); 1980 1981 /* If the sign extension will corrupt the value then we have overflowed. */ 1982 if ((value & 0xffff0000) != 0xffff0000) 1983 return bfd_reloc_overflow; 1984 1985 break; 1986 1987 case R_V850_PC17: 1988 case R_V850_17_PCREL: 1989 value -= (input_section->output_section->vma 1990 + input_section->output_offset 1991 + offset); 1992 1993 /* If the sign extension will corrupt the value then we have overflowed. */ 1994 if (((value & 0xffff0000) != 0x0) && ((value & 0xffff0000) != 0xffff0000)) 1995 return bfd_reloc_overflow; 1996 1997 value = SEXT17 (value); 1998 break; 1999 2000 case R_V850_PCR22: 2001 case R_V850_22_PCREL: 2002 value -= (input_section->output_section->vma 2003 + input_section->output_offset 2004 + offset); 2005 2006 /* If the sign extension will corrupt the value then we have overflowed. */ 2007 if (((value & 0xffe00000) != 0x0) && ((value & 0xffe00000) != 0xffe00000)) 2008 return bfd_reloc_overflow; 2009 2010 /* Only the bottom 22 bits of the PC are valid. */ 2011 value = SEXT22 (value); 2012 break; 2013 2014 case R_V850_PC32: 2015 case R_V850_32_PCREL: 2016 value -= (input_section->output_section->vma 2017 + input_section->output_offset 2018 + offset); 2019 break; 2020 2021 case R_V850_32_ABS: 2022 case R_V850_23: 2023 case R_V850_HI16_S: 2024 case R_V850_HI16: 2025 case R_V850_LO16: 2026 case R_V850_LO16_S1: 2027 case R_V850_LO16_SPLIT_OFFSET: 2028 case R_V850_16: 2029 case R_V850_ABS32: 2030 case R_V850_8: 2031 case R_V810_BYTE: 2032 case R_V810_HWORD: 2033 case R_V810_WORD: 2034 case R_V810_WLO: 2035 case R_V810_WHI: 2036 case R_V810_WHI1: 2037 case R_V810_WLO_1: 2038 case R_V850_WLO23: 2039 case R_V850_BLO: 2040 break; 2041 2042 case R_V850_ZDA_15_16_OFFSET: 2043 case R_V850_ZDA_16_16_OFFSET: 2044 case R_V850_ZDA_16_16_SPLIT_OFFSET: 2045 if (sym_sec == NULL) 2046 return bfd_reloc_undefined; 2047 2048 value -= sym_sec->output_section->vma; 2049 break; 2050 2051 case R_V850_SDA_15_16_OFFSET: 2052 case R_V850_SDA_16_16_OFFSET: 2053 case R_V850_SDA_16_16_SPLIT_OFFSET: 2054 case R_V810_GPWLO_1: 2055 { 2056 unsigned long gp; 2057 struct bfd_link_hash_entry * h; 2058 2059 if (sym_sec == NULL) 2060 return bfd_reloc_undefined; 2061 2062 /* Get the value of __gp. */ 2063 h = bfd_link_hash_lookup (info->hash, "__gp", FALSE, FALSE, TRUE); 2064 if (h == NULL 2065 || h->type != bfd_link_hash_defined) 2066 return bfd_reloc_gp_not_found; 2067 2068 gp = (h->u.def.value 2069 + h->u.def.section->output_section->vma 2070 + h->u.def.section->output_offset); 2071 2072 value -= sym_sec->output_section->vma; 2073 value -= (gp - sym_sec->output_section->vma); 2074 } 2075 break; 2076 2077 case R_V850_TDA_4_4_OFFSET: 2078 case R_V850_TDA_4_5_OFFSET: 2079 case R_V850_TDA_7_7_OFFSET: 2080 case R_V850_TDA_7_8_OFFSET: 2081 case R_V850_TDA_6_8_OFFSET: 2082 case R_V850_TDA_16_16_OFFSET: 2083 { 2084 unsigned long ep; 2085 struct bfd_link_hash_entry * h; 2086 2087 /* Get the value of __ep. */ 2088 h = bfd_link_hash_lookup (info->hash, "__ep", FALSE, FALSE, TRUE); 2089 if (h == NULL 2090 || h->type != bfd_link_hash_defined) 2091 return bfd_reloc_ep_not_found; 2092 2093 ep = (h->u.def.value 2094 + h->u.def.section->output_section->vma 2095 + h->u.def.section->output_offset); 2096 2097 value -= ep; 2098 } 2099 break; 2100 2101 case R_V850_CALLT_6_7_OFFSET: 2102 { 2103 unsigned long ctbp; 2104 struct bfd_link_hash_entry * h; 2105 2106 /* Get the value of __ctbp. */ 2107 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE); 2108 if (h == NULL 2109 || h->type != bfd_link_hash_defined) 2110 return bfd_reloc_ctbp_not_found; 2111 2112 ctbp = (h->u.def.value 2113 + h->u.def.section->output_section->vma 2114 + h->u.def.section->output_offset); 2115 value -= ctbp; 2116 } 2117 break; 2118 2119 case R_V850_CALLT_15_16_OFFSET: 2120 case R_V850_CALLT_16_16_OFFSET: 2121 { 2122 unsigned long ctbp; 2123 struct bfd_link_hash_entry * h; 2124 2125 if (sym_sec == NULL) 2126 return bfd_reloc_undefined; 2127 2128 /* Get the value of __ctbp. */ 2129 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE); 2130 if (h == NULL 2131 || h->type != bfd_link_hash_defined) 2132 return bfd_reloc_ctbp_not_found; 2133 2134 ctbp = (h->u.def.value 2135 + h->u.def.section->output_section->vma 2136 + h->u.def.section->output_offset); 2137 2138 value -= sym_sec->output_section->vma; 2139 value -= (ctbp - sym_sec->output_section->vma); 2140 } 2141 break; 2142 2143 case R_V850_NONE: 2144 case R_V810_NONE: 2145 case R_V850_GNU_VTINHERIT: 2146 case R_V850_GNU_VTENTRY: 2147 case R_V850_LONGCALL: 2148 case R_V850_LONGJUMP: 2149 case R_V850_ALIGN: 2150 return bfd_reloc_ok; 2151 2152 default: 2153 #ifdef DEBUG 2154 _bfd_error_handler ("%pB: unsupported relocation type %#x", 2155 input_bfd, r_type); 2156 #endif 2157 return bfd_reloc_notsupported; 2158 } 2159 2160 /* Perform the relocation. */ 2161 return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data); 2162 } 2163 2164 /* Relocate an V850 ELF section. */ 2165 2166 static bfd_boolean 2167 v850_elf_relocate_section (bfd *output_bfd, 2168 struct bfd_link_info *info, 2169 bfd *input_bfd, 2170 asection *input_section, 2171 bfd_byte *contents, 2172 Elf_Internal_Rela *relocs, 2173 Elf_Internal_Sym *local_syms, 2174 asection **local_sections) 2175 { 2176 Elf_Internal_Shdr *symtab_hdr; 2177 struct elf_link_hash_entry **sym_hashes; 2178 Elf_Internal_Rela *rel; 2179 Elf_Internal_Rela *relend; 2180 2181 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; 2182 sym_hashes = elf_sym_hashes (input_bfd); 2183 2184 /* Reset the list of remembered HI16S relocs to empty. */ 2185 free_hi16s = previous_hi16s; 2186 previous_hi16s = NULL; 2187 hi16s_counter = 0; 2188 2189 rel = relocs; 2190 relend = relocs + input_section->reloc_count; 2191 for (; rel < relend; rel++) 2192 { 2193 unsigned int r_type; 2194 reloc_howto_type *howto; 2195 unsigned long r_symndx; 2196 Elf_Internal_Sym *sym; 2197 asection *sec; 2198 struct elf_link_hash_entry *h; 2199 bfd_vma relocation; 2200 bfd_reloc_status_type r; 2201 2202 r_symndx = ELF32_R_SYM (rel->r_info); 2203 r_type = ELF32_R_TYPE (rel->r_info); 2204 2205 if (r_type == R_V850_GNU_VTENTRY 2206 || r_type == R_V850_GNU_VTINHERIT) 2207 continue; 2208 2209 if (bfd_get_arch (input_bfd) == bfd_arch_v850_rh850) 2210 howto = v800_elf_howto_table + (r_type - R_V810_NONE); 2211 else 2212 howto = v850_elf_howto_table + r_type; 2213 2214 BFD_ASSERT (r_type == howto->type); 2215 2216 h = NULL; 2217 sym = NULL; 2218 sec = NULL; 2219 if (r_symndx < symtab_hdr->sh_info) 2220 { 2221 sym = local_syms + r_symndx; 2222 sec = local_sections[r_symndx]; 2223 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); 2224 } 2225 else 2226 { 2227 bfd_boolean unresolved_reloc, warned, ignored; 2228 2229 /* Note - this check is delayed until now as it is possible and 2230 valid to have a file without any symbols but with relocs that 2231 can be processed. */ 2232 if (sym_hashes == NULL) 2233 { 2234 info->callbacks->warning 2235 (info, "no hash table available", 2236 NULL, input_bfd, input_section, (bfd_vma) 0); 2237 2238 return FALSE; 2239 } 2240 2241 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, 2242 r_symndx, symtab_hdr, sym_hashes, 2243 h, sec, relocation, 2244 unresolved_reloc, warned, ignored); 2245 } 2246 2247 if (sec != NULL && discarded_section (sec)) 2248 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, 2249 rel, 1, relend, howto, 0, contents); 2250 2251 if (bfd_link_relocatable (info)) 2252 continue; 2253 2254 /* FIXME: We should use the addend, but the COFF relocations don't. */ 2255 r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd, 2256 input_section, 2257 contents, rel->r_offset, 2258 relocation, rel->r_addend, 2259 info, sec, h == NULL); 2260 2261 if (r != bfd_reloc_ok) 2262 { 2263 const char * name; 2264 const char * msg = NULL; 2265 2266 if (h != NULL) 2267 name = h->root.root.string; 2268 else 2269 { 2270 name = (bfd_elf_string_from_elf_section 2271 (input_bfd, symtab_hdr->sh_link, sym->st_name)); 2272 if (name == NULL || *name == '\0') 2273 name = bfd_section_name (sec); 2274 } 2275 2276 switch ((int) r) 2277 { 2278 case bfd_reloc_overflow: 2279 (*info->callbacks->reloc_overflow) 2280 (info, (h ? &h->root : NULL), name, howto->name, 2281 (bfd_vma) 0, input_bfd, input_section, rel->r_offset); 2282 break; 2283 2284 case bfd_reloc_undefined: 2285 (*info->callbacks->undefined_symbol) 2286 (info, name, input_bfd, input_section, rel->r_offset, TRUE); 2287 break; 2288 2289 case bfd_reloc_outofrange: 2290 msg = _("internal error: out of range error"); 2291 goto common_error; 2292 2293 case bfd_reloc_notsupported: 2294 msg = _("internal error: unsupported relocation error"); 2295 goto common_error; 2296 2297 case bfd_reloc_dangerous: 2298 msg = _("internal error: dangerous relocation"); 2299 goto common_error; 2300 2301 case bfd_reloc_gp_not_found: 2302 msg = _("could not locate special linker symbol __gp"); 2303 goto common_error; 2304 2305 case bfd_reloc_ep_not_found: 2306 msg = _("could not locate special linker symbol __ep"); 2307 goto common_error; 2308 2309 case bfd_reloc_ctbp_not_found: 2310 msg = _("could not locate special linker symbol __ctbp"); 2311 goto common_error; 2312 2313 default: 2314 msg = _("internal error: unknown error"); 2315 /* fall through */ 2316 2317 common_error: 2318 (*info->callbacks->warning) (info, msg, name, input_bfd, 2319 input_section, rel->r_offset); 2320 break; 2321 } 2322 } 2323 } 2324 2325 return TRUE; 2326 } 2327 2328 static asection * 2329 v850_elf_gc_mark_hook (asection *sec, 2330 struct bfd_link_info *info, 2331 Elf_Internal_Rela *rel, 2332 struct elf_link_hash_entry *h, 2333 Elf_Internal_Sym *sym) 2334 { 2335 if (h != NULL) 2336 switch (ELF32_R_TYPE (rel->r_info)) 2337 { 2338 case R_V850_GNU_VTINHERIT: 2339 case R_V850_GNU_VTENTRY: 2340 return NULL; 2341 } 2342 2343 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); 2344 } 2345 2346 static void 2347 v850_set_note (bfd * abfd, asection * s, enum v850_notes note, unsigned int val) 2348 { 2349 bfd_byte * data = s->contents + ((note - 1) * SIZEOF_V850_NOTE); 2350 2351 bfd_put_32 (abfd, 4, data + 0); 2352 bfd_put_32 (abfd, 4, data + 4); 2353 bfd_put_32 (abfd, note, data + 8); 2354 memcpy (data + 12, V850_NOTE_NAME, 4); 2355 bfd_put_32 (abfd, val, data + 16); 2356 } 2357 2358 /* Create the note section if not already present. This is done early so 2359 that the linker maps the sections to the right place in the output. */ 2360 2361 static asection * 2362 v850_elf_make_note_section (bfd * abfd) 2363 { 2364 asection *s; 2365 bfd_byte *data; 2366 flagword flags; 2367 enum v850_notes id; 2368 2369 /* Make the note section. */ 2370 flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_MERGE; 2371 2372 s = bfd_make_section_anyway_with_flags (abfd, V850_NOTE_SECNAME, flags); 2373 if (s == NULL) 2374 return NULL; 2375 2376 if (!bfd_set_section_alignment (s, 2)) 2377 return NULL; 2378 2379 /* Allocate space for all known notes. */ 2380 if (!bfd_set_section_size (s, NUM_V850_NOTES * SIZEOF_V850_NOTE)) 2381 return NULL; 2382 2383 data = bfd_zalloc (abfd, NUM_V850_NOTES * SIZEOF_V850_NOTE); 2384 if (data == NULL) 2385 return NULL; 2386 2387 s->contents = data; 2388 2389 /* Provide default (= uninitilaised) values for all of the notes. */ 2390 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++) 2391 v850_set_note (abfd, s, id, 0); 2392 2393 return s; 2394 } 2395 2396 /* Create the note section if not already present. This is done early so 2397 that the linker maps the sections to the right place in the output. */ 2398 2399 bfd_boolean 2400 v850_elf_create_sections (struct bfd_link_info * info) 2401 { 2402 bfd * ibfd; 2403 2404 /* If we already have a note section, do not make another. */ 2405 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) 2406 if (bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME) != NULL) 2407 return TRUE; 2408 2409 return v850_elf_make_note_section (info->input_bfds) != NULL; 2410 } 2411 2412 bfd_boolean 2413 v850_elf_set_note (bfd * abfd, enum v850_notes note, unsigned int val) 2414 { 2415 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME); 2416 2417 if (val > 2) 2418 /* At the moment, no known note has a value over 2. */ 2419 return FALSE; 2420 2421 if (notes == NULL) 2422 notes = v850_elf_make_note_section (abfd); 2423 if (notes == NULL) 2424 return FALSE; 2425 2426 v850_set_note (abfd, notes, note, val); 2427 return TRUE; 2428 } 2429 2430 /* Copy a v850 note section from one object module to another. */ 2431 2432 static void 2433 v850_elf_copy_notes (bfd *ibfd, bfd *obfd) 2434 { 2435 asection * onotes; 2436 asection * inotes; 2437 2438 /* If the output bfd does not have a note section, then 2439 skip the merge. The normal input to output section 2440 copying will take care of everythng for us. */ 2441 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL) 2442 return; 2443 2444 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) == NULL) 2445 return; 2446 2447 if (bfd_section_size (inotes) == bfd_section_size (onotes)) 2448 { 2449 bfd_byte * icont; 2450 bfd_byte * ocont; 2451 2452 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL) 2453 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont)); 2454 2455 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL) 2456 /* If the output is being stripped then it is possible for 2457 the notes section to disappear. In this case do nothing. */ 2458 return; 2459 2460 /* Copy/overwrite notes from the input to the output. */ 2461 memcpy (ocont, icont, bfd_section_size (onotes)); 2462 } 2463 } 2464 2465 /* Copy backend specific data from one object module to another. */ 2466 2467 static bfd_boolean 2468 v850_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) 2469 { 2470 v850_elf_copy_notes (ibfd, obfd); 2471 return _bfd_elf_copy_private_bfd_data (ibfd, obfd); 2472 } 2473 #define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data 2474 2475 static bfd_boolean 2476 v850_elf_merge_notes (bfd * ibfd, bfd *obfd) 2477 { 2478 asection * onotes; 2479 asection * inotes; 2480 bfd_boolean result = TRUE; 2481 2482 /* If the output bfd does not have a note section, then 2483 skip the merge. The normal input to output section 2484 copying will take care of everythng for us. */ 2485 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL) 2486 return TRUE; 2487 2488 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) != NULL) 2489 { 2490 enum v850_notes id; 2491 bfd_byte * icont; 2492 bfd_byte * ocont; 2493 2494 BFD_ASSERT (bfd_section_size (inotes) == bfd_section_size (onotes)); 2495 2496 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL) 2497 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont)); 2498 2499 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL) 2500 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont)); 2501 2502 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++) 2503 { 2504 unsigned int ival; 2505 unsigned int oval; 2506 bfd_byte * idata = icont + ((id - 1) * SIZEOF_V850_NOTE) + 16; 2507 bfd_byte * odata = ocont + ((id - 1) * SIZEOF_V850_NOTE) + 16; 2508 2509 ival = bfd_get_32 (ibfd, idata); 2510 oval = bfd_get_32 (obfd, odata); 2511 2512 if (ival == 0 || ival == oval) 2513 continue; 2514 2515 if (oval == 0) 2516 { 2517 bfd_put_32 (obfd, ival, odata); 2518 v850_set_note (obfd, onotes, id, ival); 2519 continue; 2520 } 2521 2522 /* We have a mismatch. The ABI defines how to handle 2523 this siutation on a per note type basis. */ 2524 switch (id) 2525 { 2526 case V850_NOTE_ALIGNMENT: 2527 if (oval == EF_RH850_DATA_ALIGN4) 2528 { 2529 _bfd_error_handler 2530 /* xgettext:c-format */ 2531 (_("error: %pB needs 8-byte alignment but %pB is set for 4-byte alignment"), 2532 ibfd, obfd); 2533 result = FALSE; 2534 } 2535 else 2536 /* ibfd uses 4-byte alignment, obfd uses 8-byte alignment. 2537 Leave the obfd alignment as it is. */ 2538 BFD_ASSERT (oval == EF_RH850_DATA_ALIGN8); 2539 2540 break; 2541 2542 case V850_NOTE_DATA_SIZE: 2543 if (oval == EF_RH850_DOUBLE32) 2544 { 2545 _bfd_error_handler 2546 /* xgettext:c-format */ 2547 (_("error: %pB uses 64-bit doubles but " 2548 "%pB uses 32-bit doubles"), ibfd, obfd); 2549 result = FALSE; 2550 } 2551 else 2552 /* ibfd uses 32-bit doubles, obfd uses 64-bit doubles. 2553 This is acceptable. Honest, that is what the ABI says. */ 2554 BFD_ASSERT (oval == EF_RH850_DOUBLE64); 2555 break; 2556 2557 case V850_NOTE_FPU_INFO: 2558 if (oval == EF_RH850_FPU20) 2559 { 2560 _bfd_error_handler 2561 /* xgettext:c-format */ 2562 (_("error: %pB uses FPU-3.0 but %pB only supports FPU-2.0"), 2563 ibfd, obfd); 2564 result = FALSE; 2565 } 2566 else 2567 /* ibfd uses FPU-2.0, obfd uses FPU-3.0. Leave obfd as it is. */ 2568 BFD_ASSERT (oval == EF_RH850_FPU30); 2569 2570 break; 2571 2572 default: 2573 /* None of the other conflicts matter. 2574 Stick with the current output values. */ 2575 break; 2576 } 2577 } 2578 2579 /* FIXME: We should also check for conflicts between the notes 2580 and the EF flags in the ELF header. */ 2581 } 2582 2583 return result; 2584 } 2585 2586 static void 2587 print_v850_note (bfd * abfd, FILE * file, bfd_byte * data, enum v850_notes id) 2588 { 2589 unsigned int value = bfd_get_32 (abfd, data + ((id - 1) * SIZEOF_V850_NOTE) + 16); 2590 2591 switch (id) 2592 { 2593 case V850_NOTE_ALIGNMENT: 2594 fprintf (file, _(" alignment of 8-byte entities: ")); 2595 switch (value) 2596 { 2597 case EF_RH850_DATA_ALIGN4: fprintf (file, _("4-byte")); break; 2598 case EF_RH850_DATA_ALIGN8: fprintf (file, _("8-byte")); break; 2599 case 0: fprintf (file, _("not set")); break; 2600 default: fprintf (file, _("unknown: %x"), value); break; 2601 } 2602 fputc ('\n', file); 2603 break; 2604 2605 case V850_NOTE_DATA_SIZE: 2606 fprintf (file, _(" size of doubles: ")); 2607 switch (value) 2608 { 2609 case EF_RH850_DOUBLE32: fprintf (file, _("4-bytes")); break; 2610 case EF_RH850_DOUBLE64: fprintf (file, _("8-bytes")); break; 2611 case 0: fprintf (file, _("not set")); break; 2612 default: fprintf (file, _("unknown: %x"), value); break; 2613 } 2614 fputc ('\n', file); 2615 break; 2616 2617 case V850_NOTE_FPU_INFO: 2618 fprintf (file, _(" FPU support required: ")); 2619 switch (value) 2620 { 2621 case EF_RH850_FPU20: fprintf (file, _("FPU-2.0")); break; 2622 case EF_RH850_FPU30: fprintf (file, _("FPU-3.0")); break; 2623 case 0: fprintf (file, _("none")); break; 2624 default: fprintf (file, _("unknown: %x"), value); break; 2625 } 2626 fputc ('\n', file); 2627 break; 2628 2629 case V850_NOTE_SIMD_INFO: 2630 fprintf (file, _("SIMD use: ")); 2631 switch (value) 2632 { 2633 case EF_RH850_SIMD: fprintf (file, _("yes")); break; 2634 case 0: fprintf (file, _("no")); break; 2635 default: fprintf (file, _("unknown: %x"), value); break; 2636 } 2637 fputc ('\n', file); 2638 break; 2639 2640 case V850_NOTE_CACHE_INFO: 2641 fprintf (file, _("CACHE use: ")); 2642 switch (value) 2643 { 2644 case EF_RH850_CACHE: fprintf (file, _("yes")); break; 2645 case 0: fprintf (file, _("no")); break; 2646 default: fprintf (file, _("unknown: %x"), value); break; 2647 } 2648 fputc ('\n', file); 2649 break; 2650 2651 case V850_NOTE_MMU_INFO: 2652 fprintf (file, _("MMU use: ")); 2653 switch (value) 2654 { 2655 case EF_RH850_MMU: fprintf (file, _("yes")); break; 2656 case 0: fprintf (file, _("no")); break; 2657 default: fprintf (file, _("unknown: %x"), value); break; 2658 } 2659 fputc ('\n', file); 2660 break; 2661 2662 default: 2663 BFD_ASSERT (0); 2664 } 2665 } 2666 2667 static void 2668 v850_elf_print_notes (bfd * abfd, FILE * file) 2669 { 2670 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME); 2671 enum v850_notes id; 2672 2673 if (notes == NULL || notes->contents == NULL) 2674 return; 2675 2676 BFD_ASSERT (bfd_section_size (notes) == NUM_V850_NOTES * SIZEOF_V850_NOTE); 2677 2678 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++) 2679 print_v850_note (abfd, file, notes->contents, id); 2680 } 2681 2682 /* Set the right machine number and architecture. */ 2683 2684 static bfd_boolean 2685 v850_elf_object_p (bfd *abfd) 2686 { 2687 enum bfd_architecture arch; 2688 unsigned long mach; 2689 2690 switch (elf_elfheader (abfd)->e_machine) 2691 { 2692 case EM_V800: 2693 arch = bfd_arch_v850_rh850; 2694 mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3) 2695 ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3; 2696 break; 2697 2698 case EM_CYGNUS_V850: 2699 case EM_V850: 2700 arch = bfd_arch_v850; 2701 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) 2702 { 2703 default: 2704 case E_V850_ARCH: mach = bfd_mach_v850; break; 2705 case E_V850E_ARCH: mach = bfd_mach_v850e; break; 2706 case E_V850E1_ARCH: mach = bfd_mach_v850e1; break; 2707 case E_V850E2_ARCH: mach = bfd_mach_v850e2; break; 2708 case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break; 2709 case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break; 2710 } 2711 break; 2712 2713 default: 2714 return FALSE; 2715 } 2716 2717 return bfd_default_set_arch_mach (abfd, arch, mach); 2718 } 2719 2720 /* Store the machine number in the flags field. */ 2721 2722 static bfd_boolean 2723 v850_elf_final_write_processing (bfd *abfd) 2724 { 2725 unsigned long val; 2726 2727 switch (bfd_get_arch (abfd)) 2728 { 2729 case bfd_arch_v850_rh850: 2730 val = EF_RH850_ABI; 2731 if (bfd_get_mach (abfd) == bfd_mach_v850e3v5) 2732 val |= EF_V800_850E3; 2733 elf_elfheader (abfd)->e_flags |= val; 2734 break; 2735 2736 case bfd_arch_v850: 2737 switch (bfd_get_mach (abfd)) 2738 { 2739 default: 2740 case bfd_mach_v850: val = E_V850_ARCH; break; 2741 case bfd_mach_v850e: val = E_V850E_ARCH; break; 2742 case bfd_mach_v850e1: val = E_V850E1_ARCH; break; 2743 case bfd_mach_v850e2: val = E_V850E2_ARCH; break; 2744 case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break; 2745 case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break; 2746 } 2747 elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH; 2748 elf_elfheader (abfd)->e_flags |= val; 2749 break; 2750 default: 2751 break; 2752 } 2753 return _bfd_elf_final_write_processing (abfd); 2754 } 2755 2756 /* Function to keep V850 specific file flags. */ 2757 2758 static bfd_boolean 2759 v850_elf_set_private_flags (bfd *abfd, flagword flags) 2760 { 2761 BFD_ASSERT (!elf_flags_init (abfd) 2762 || elf_elfheader (abfd)->e_flags == flags); 2763 2764 elf_elfheader (abfd)->e_flags = flags; 2765 elf_flags_init (abfd) = TRUE; 2766 return TRUE; 2767 } 2768 2769 /* Merge backend specific data from an object file 2770 to the output object file when linking. */ 2771 2772 static bfd_boolean 2773 v850_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) 2774 { 2775 bfd *obfd = info->output_bfd; 2776 flagword out_flags; 2777 flagword in_flags; 2778 bfd_boolean result = TRUE; 2779 2780 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour 2781 || bfd_get_flavour (obfd) != bfd_target_elf_flavour) 2782 return TRUE; 2783 2784 result &= v850_elf_merge_notes (ibfd, obfd); 2785 2786 in_flags = elf_elfheader (ibfd)->e_flags; 2787 out_flags = elf_elfheader (obfd)->e_flags; 2788 2789 if (! elf_flags_init (obfd)) 2790 { 2791 /* If the input is the default architecture then do not 2792 bother setting the flags for the output architecture, 2793 instead allow future merges to do this. If no future 2794 merges ever set these flags then they will retain their 2795 unitialised values, which surprise surprise, correspond 2796 to the default values. */ 2797 if (bfd_get_arch_info (ibfd)->the_default) 2798 return TRUE; 2799 2800 elf_flags_init (obfd) = TRUE; 2801 elf_elfheader (obfd)->e_flags = in_flags; 2802 2803 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) 2804 && bfd_get_arch_info (obfd)->the_default) 2805 result &= bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); 2806 2807 return result; 2808 } 2809 2810 /* Check flag compatibility. */ 2811 if (in_flags == out_flags) 2812 return result; 2813 2814 if (bfd_get_arch (obfd) == bfd_arch_v850_rh850) 2815 { 2816 if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3)) 2817 { 2818 _bfd_error_handler 2819 (_("%pB: architecture mismatch with previous modules"), ibfd); 2820 elf_elfheader (obfd)->e_flags |= EF_V800_850E3; 2821 } 2822 2823 return result; 2824 } 2825 2826 if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH) 2827 && (in_flags & EF_V850_ARCH) != E_V850_ARCH) 2828 { 2829 /* Allow earlier architecture binaries to be linked with later binaries. 2830 Set the output binary to the later architecture, except for v850e1, 2831 which we set to v850e. */ 2832 if ( (in_flags & EF_V850_ARCH) == E_V850E1_ARCH 2833 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH) 2834 return result; 2835 2836 if ( (in_flags & EF_V850_ARCH) == E_V850_ARCH 2837 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH) 2838 { 2839 elf_elfheader (obfd)->e_flags = 2840 ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH); 2841 return result; 2842 } 2843 2844 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH 2845 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH) 2846 && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH) 2847 { 2848 elf_elfheader (obfd)->e_flags = 2849 ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH); 2850 return result; 2851 } 2852 2853 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH 2854 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH 2855 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH) 2856 && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH) 2857 { 2858 elf_elfheader (obfd)->e_flags = 2859 ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH); 2860 return result; 2861 } 2862 2863 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH 2864 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH 2865 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH 2866 || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH) 2867 && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH) 2868 { 2869 elf_elfheader (obfd)->e_flags = 2870 ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_ARCH); 2871 return result; 2872 } 2873 2874 _bfd_error_handler 2875 (_("%pB: architecture mismatch with previous modules"), ibfd); 2876 } 2877 2878 return result; 2879 } 2880 2881 /* Display the flags field. */ 2882 2883 static bfd_boolean 2884 v850_elf_print_private_bfd_data (bfd *abfd, void * ptr) 2885 { 2886 FILE * file = (FILE *) ptr; 2887 2888 BFD_ASSERT (abfd != NULL && ptr != NULL); 2889 2890 _bfd_elf_print_private_bfd_data (abfd, ptr); 2891 2892 /* xgettext:c-format. */ 2893 fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags); 2894 2895 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850) 2896 { 2897 if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI) 2898 fprintf (file, _("unknown v850 architecture")); 2899 else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3) 2900 fprintf (file, _("v850 E3 architecture")); 2901 else 2902 fprintf (file, _("v850 architecture")); 2903 } 2904 else 2905 { 2906 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) 2907 { 2908 default: 2909 case E_V850_ARCH: fprintf (file, _("v850 architecture")); break; 2910 case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break; 2911 case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break; 2912 case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break; 2913 case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break; 2914 case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 architecture")); break; 2915 } 2916 } 2917 2918 fputc ('\n', file); 2919 2920 v850_elf_print_notes (abfd, file); 2921 2922 return TRUE; 2923 } 2924 2925 /* V850 ELF uses four common sections. One is the usual one, and the 2926 others are for (small) objects in one of the special data areas: 2927 small, tiny and zero. All the objects are kept together, and then 2928 referenced via the gp register, the ep register or the r0 register 2929 respectively, which yields smaller, faster assembler code. This 2930 approach is copied from elf32-mips.c. */ 2931 2932 static asection v850_elf_scom_section; 2933 static asymbol v850_elf_scom_symbol; 2934 static asymbol * v850_elf_scom_symbol_ptr; 2935 static asection v850_elf_tcom_section; 2936 static asymbol v850_elf_tcom_symbol; 2937 static asymbol * v850_elf_tcom_symbol_ptr; 2938 static asection v850_elf_zcom_section; 2939 static asymbol v850_elf_zcom_symbol; 2940 static asymbol * v850_elf_zcom_symbol_ptr; 2941 2942 /* Given a BFD section, try to locate the 2943 corresponding ELF section index. */ 2944 2945 static bfd_boolean 2946 v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, 2947 asection *sec, 2948 int *retval) 2949 { 2950 if (strcmp (bfd_section_name (sec), ".scommon") == 0) 2951 *retval = SHN_V850_SCOMMON; 2952 else if (strcmp (bfd_section_name (sec), ".tcommon") == 0) 2953 *retval = SHN_V850_TCOMMON; 2954 else if (strcmp (bfd_section_name (sec), ".zcommon") == 0) 2955 *retval = SHN_V850_ZCOMMON; 2956 else 2957 return FALSE; 2958 2959 return TRUE; 2960 } 2961 2962 /* Handle the special V850 section numbers that a symbol may use. */ 2963 2964 static void 2965 v850_elf_symbol_processing (bfd *abfd, asymbol *asym) 2966 { 2967 elf_symbol_type * elfsym = (elf_symbol_type *) asym; 2968 unsigned int indx; 2969 2970 indx = elfsym->internal_elf_sym.st_shndx; 2971 2972 /* If the section index is an "ordinary" index, then it may 2973 refer to a v850 specific section created by the assembler. 2974 Check the section's type and change the index it matches. 2975 2976 FIXME: Should we alter the st_shndx field as well ? */ 2977 2978 if (indx < elf_numsections (abfd)) 2979 switch (elf_elfsections (abfd)[indx]->sh_type) 2980 { 2981 case SHT_V850_SCOMMON: 2982 indx = SHN_V850_SCOMMON; 2983 break; 2984 2985 case SHT_V850_TCOMMON: 2986 indx = SHN_V850_TCOMMON; 2987 break; 2988 2989 case SHT_V850_ZCOMMON: 2990 indx = SHN_V850_ZCOMMON; 2991 break; 2992 2993 default: 2994 break; 2995 } 2996 2997 switch (indx) 2998 { 2999 case SHN_V850_SCOMMON: 3000 if (v850_elf_scom_section.name == NULL) 3001 { 3002 /* Initialize the small common section. */ 3003 v850_elf_scom_section.name = ".scommon"; 3004 v850_elf_scom_section.flags 3005 = SEC_IS_COMMON | SEC_SMALL_DATA | SEC_ALLOC | SEC_DATA; 3006 v850_elf_scom_section.output_section = & v850_elf_scom_section; 3007 v850_elf_scom_section.symbol = & v850_elf_scom_symbol; 3008 v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr; 3009 v850_elf_scom_symbol.name = ".scommon"; 3010 v850_elf_scom_symbol.flags = BSF_SECTION_SYM; 3011 v850_elf_scom_symbol.section = & v850_elf_scom_section; 3012 v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol; 3013 } 3014 asym->section = & v850_elf_scom_section; 3015 asym->value = elfsym->internal_elf_sym.st_size; 3016 break; 3017 3018 case SHN_V850_TCOMMON: 3019 if (v850_elf_tcom_section.name == NULL) 3020 { 3021 /* Initialize the tcommon section. */ 3022 v850_elf_tcom_section.name = ".tcommon"; 3023 v850_elf_tcom_section.flags = SEC_IS_COMMON | SEC_SMALL_DATA; 3024 v850_elf_tcom_section.output_section = & v850_elf_tcom_section; 3025 v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol; 3026 v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr; 3027 v850_elf_tcom_symbol.name = ".tcommon"; 3028 v850_elf_tcom_symbol.flags = BSF_SECTION_SYM; 3029 v850_elf_tcom_symbol.section = & v850_elf_tcom_section; 3030 v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol; 3031 } 3032 asym->section = & v850_elf_tcom_section; 3033 asym->value = elfsym->internal_elf_sym.st_size; 3034 break; 3035 3036 case SHN_V850_ZCOMMON: 3037 if (v850_elf_zcom_section.name == NULL) 3038 { 3039 /* Initialize the zcommon section. */ 3040 v850_elf_zcom_section.name = ".zcommon"; 3041 v850_elf_zcom_section.flags = SEC_IS_COMMON | SEC_SMALL_DATA; 3042 v850_elf_zcom_section.output_section = & v850_elf_zcom_section; 3043 v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol; 3044 v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr; 3045 v850_elf_zcom_symbol.name = ".zcommon"; 3046 v850_elf_zcom_symbol.flags = BSF_SECTION_SYM; 3047 v850_elf_zcom_symbol.section = & v850_elf_zcom_section; 3048 v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol; 3049 } 3050 asym->section = & v850_elf_zcom_section; 3051 asym->value = elfsym->internal_elf_sym.st_size; 3052 break; 3053 } 3054 } 3055 3056 /* Hook called by the linker routine which adds symbols from an object 3057 file. We must handle the special v850 section numbers here. */ 3058 3059 static bfd_boolean 3060 v850_elf_add_symbol_hook (bfd *abfd, 3061 struct bfd_link_info *info ATTRIBUTE_UNUSED, 3062 Elf_Internal_Sym *sym, 3063 const char **namep ATTRIBUTE_UNUSED, 3064 flagword *flagsp ATTRIBUTE_UNUSED, 3065 asection **secp, 3066 bfd_vma *valp) 3067 { 3068 unsigned int indx = sym->st_shndx; 3069 3070 /* If the section index is an "ordinary" index, then it may 3071 refer to a v850 specific section created by the assembler. 3072 Check the section's type and change the index it matches. 3073 3074 FIXME: Should we alter the st_shndx field as well ? */ 3075 3076 if (indx < elf_numsections (abfd)) 3077 switch (elf_elfsections (abfd)[indx]->sh_type) 3078 { 3079 case SHT_V850_SCOMMON: 3080 indx = SHN_V850_SCOMMON; 3081 break; 3082 3083 case SHT_V850_TCOMMON: 3084 indx = SHN_V850_TCOMMON; 3085 break; 3086 3087 case SHT_V850_ZCOMMON: 3088 indx = SHN_V850_ZCOMMON; 3089 break; 3090 3091 default: 3092 break; 3093 } 3094 3095 switch (indx) 3096 { 3097 case SHN_V850_SCOMMON: 3098 *secp = bfd_make_section_old_way (abfd, ".scommon"); 3099 (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA; 3100 *valp = sym->st_size; 3101 break; 3102 3103 case SHN_V850_TCOMMON: 3104 *secp = bfd_make_section_old_way (abfd, ".tcommon"); 3105 (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA; 3106 *valp = sym->st_size; 3107 break; 3108 3109 case SHN_V850_ZCOMMON: 3110 *secp = bfd_make_section_old_way (abfd, ".zcommon"); 3111 (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA; 3112 *valp = sym->st_size; 3113 break; 3114 } 3115 3116 return TRUE; 3117 } 3118 3119 static int 3120 v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, 3121 const char *name ATTRIBUTE_UNUSED, 3122 Elf_Internal_Sym *sym, 3123 asection *input_sec, 3124 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) 3125 { 3126 /* If we see a common symbol, which implies a relocatable link, then 3127 if a symbol was in a special common section in an input file, mark 3128 it as a special common in the output file. */ 3129 3130 if (sym->st_shndx == SHN_COMMON) 3131 { 3132 if (strcmp (input_sec->name, ".scommon") == 0) 3133 sym->st_shndx = SHN_V850_SCOMMON; 3134 else if (strcmp (input_sec->name, ".tcommon") == 0) 3135 sym->st_shndx = SHN_V850_TCOMMON; 3136 else if (strcmp (input_sec->name, ".zcommon") == 0) 3137 sym->st_shndx = SHN_V850_ZCOMMON; 3138 } 3139 3140 /* The price we pay for using h->other unused bits as flags in the 3141 linker is cleaning up after ourselves. */ 3142 3143 sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA 3144 | V850_OTHER_ERROR); 3145 3146 return 1; 3147 } 3148 3149 static bfd_boolean 3150 v850_elf_section_from_shdr (bfd *abfd, 3151 Elf_Internal_Shdr *hdr, 3152 const char *name, 3153 int shindex) 3154 { 3155 flagword flags; 3156 3157 /* There ought to be a place to keep ELF backend specific flags, but 3158 at the moment there isn't one. We just keep track of the 3159 sections by their name, instead. */ 3160 3161 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) 3162 return FALSE; 3163 3164 flags = 0; 3165 switch (hdr->sh_type) 3166 { 3167 case SHT_V850_SCOMMON: 3168 case SHT_V850_TCOMMON: 3169 case SHT_V850_ZCOMMON: 3170 flags = SEC_IS_COMMON; 3171 } 3172 3173 if ((hdr->sh_flags & SHF_V850_GPREL) != 0) 3174 flags |= SEC_SMALL_DATA; 3175 3176 return (flags == 0 3177 || bfd_set_section_flags (hdr->bfd_section, 3178 hdr->bfd_section->flags | flags)); 3179 } 3180 3181 /* Set the correct type for a V850 ELF section. We do this 3182 by the section name, which is a hack, but ought to work. */ 3183 3184 static bfd_boolean 3185 v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, 3186 Elf_Internal_Shdr *hdr, 3187 asection *sec) 3188 { 3189 const char * name; 3190 3191 name = bfd_section_name (sec); 3192 3193 if (strcmp (name, ".scommon") == 0) 3194 hdr->sh_type = SHT_V850_SCOMMON; 3195 else if (strcmp (name, ".tcommon") == 0) 3196 hdr->sh_type = SHT_V850_TCOMMON; 3197 else if (strcmp (name, ".zcommon") == 0) 3198 hdr->sh_type = SHT_V850_ZCOMMON; 3199 /* Tweak the section type of .note.renesas. */ 3200 else if (strcmp (name, V850_NOTE_SECNAME) == 0) 3201 { 3202 hdr->sh_type = SHT_RENESAS_INFO; 3203 hdr->sh_entsize = SIZEOF_V850_NOTE; 3204 } 3205 3206 return TRUE; 3207 } 3208 3209 /* Delete some bytes from a section while relaxing. */ 3210 3211 static bfd_boolean 3212 v850_elf_relax_delete_bytes (bfd *abfd, 3213 asection *sec, 3214 bfd_vma addr, 3215 bfd_vma toaddr, 3216 int count) 3217 { 3218 Elf_Internal_Shdr *symtab_hdr; 3219 Elf32_External_Sym *extsyms; 3220 Elf32_External_Sym *esym; 3221 Elf32_External_Sym *esymend; 3222 int sym_index; 3223 unsigned int sec_shndx; 3224 bfd_byte *contents; 3225 Elf_Internal_Rela *irel; 3226 Elf_Internal_Rela *irelend; 3227 struct elf_link_hash_entry *sym_hash; 3228 Elf_External_Sym_Shndx *shndx; 3229 3230 symtab_hdr = &elf_tdata (abfd)->symtab_hdr; 3231 extsyms = (Elf32_External_Sym *) symtab_hdr->contents; 3232 3233 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); 3234 3235 contents = elf_section_data (sec)->this_hdr.contents; 3236 3237 /* The deletion must stop at the next ALIGN reloc for an alignment 3238 power larger than the number of bytes we are deleting. */ 3239 3240 /* Actually delete the bytes. */ 3241 #if (DEBUG_RELAX & 2) 3242 fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n", 3243 sec->name, addr, toaddr, count ); 3244 #endif 3245 memmove (contents + addr, contents + addr + count, 3246 toaddr - addr - count); 3247 memset (contents + toaddr-count, 0, count); 3248 3249 /* Adjust all the relocs. */ 3250 irel = elf_section_data (sec)->relocs; 3251 irelend = irel + sec->reloc_count; 3252 if (elf_symtab_shndx_list (abfd)) 3253 { 3254 Elf_Internal_Shdr *shndx_hdr; 3255 3256 shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; 3257 shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents; 3258 } 3259 else 3260 { 3261 shndx = NULL; 3262 } 3263 3264 for (; irel < irelend; irel++) 3265 { 3266 bfd_vma raddr, paddr, symval; 3267 Elf_Internal_Sym isym; 3268 3269 /* Get the new reloc address. */ 3270 raddr = irel->r_offset; 3271 if ((raddr >= (addr + count) && raddr < toaddr)) 3272 irel->r_offset -= count; 3273 3274 if (raddr >= addr && raddr < addr + count) 3275 { 3276 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), 3277 (int) R_V850_NONE); 3278 continue; 3279 } 3280 3281 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN) 3282 continue; 3283 3284 bfd_elf32_swap_symbol_in (abfd, 3285 extsyms + ELF32_R_SYM (irel->r_info), 3286 shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL, 3287 & isym); 3288 3289 if (isym.st_shndx != sec_shndx) 3290 continue; 3291 3292 /* Get the value of the symbol referred to by the reloc. */ 3293 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) 3294 { 3295 symval = isym.st_value; 3296 #if (DEBUG_RELAX & 2) 3297 { 3298 char * name = bfd_elf_string_from_elf_section 3299 (abfd, symtab_hdr->sh_link, isym.st_name); 3300 fprintf (stderr, 3301 "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n", 3302 sec->name, name, isym.st_name, 3303 sec->output_section->vma, sec->output_offset, 3304 isym.st_value, irel->r_addend); 3305 } 3306 #endif 3307 } 3308 else 3309 { 3310 unsigned long indx; 3311 struct elf_link_hash_entry * h; 3312 3313 /* An external symbol. */ 3314 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; 3315 3316 h = elf_sym_hashes (abfd) [indx]; 3317 BFD_ASSERT (h != NULL); 3318 3319 symval = h->root.u.def.value; 3320 #if (DEBUG_RELAX & 2) 3321 fprintf (stderr, 3322 "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n", 3323 sec->name, h->root.root.string, h->root.u.def.value, 3324 sec->output_section->vma, sec->output_offset, irel->r_addend); 3325 #endif 3326 } 3327 3328 paddr = symval + irel->r_addend; 3329 3330 if ( (symval >= addr + count && symval < toaddr) 3331 && (paddr < addr + count || paddr >= toaddr)) 3332 irel->r_addend += count; 3333 else if ( (symval < addr + count || symval >= toaddr) 3334 && (paddr >= addr + count && paddr < toaddr)) 3335 irel->r_addend -= count; 3336 } 3337 3338 /* Adjust the local symbols defined in this section. */ 3339 esym = extsyms; 3340 esymend = esym + symtab_hdr->sh_info; 3341 3342 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL)) 3343 { 3344 Elf_Internal_Sym isym; 3345 3346 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym); 3347 3348 if (isym.st_shndx == sec_shndx 3349 && isym.st_value >= addr + count 3350 && isym.st_value < toaddr) 3351 { 3352 isym.st_value -= count; 3353 3354 if (isym.st_value + isym.st_size >= toaddr) 3355 isym.st_size += count; 3356 3357 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); 3358 } 3359 else if (isym.st_shndx == sec_shndx 3360 && isym.st_value < addr + count) 3361 { 3362 if (isym.st_value+isym.st_size >= addr + count 3363 && isym.st_value+isym.st_size < toaddr) 3364 isym.st_size -= count; 3365 3366 if (isym.st_value >= addr 3367 && isym.st_value < addr + count) 3368 isym.st_value = addr; 3369 3370 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); 3371 } 3372 } 3373 3374 /* Now adjust the global symbols defined in this section. */ 3375 esym = extsyms + symtab_hdr->sh_info; 3376 esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)); 3377 3378 for (sym_index = 0; esym < esymend; esym ++, sym_index ++) 3379 { 3380 Elf_Internal_Sym isym; 3381 3382 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym); 3383 sym_hash = elf_sym_hashes (abfd) [sym_index]; 3384 3385 if (isym.st_shndx == sec_shndx 3386 && ((sym_hash)->root.type == bfd_link_hash_defined 3387 || (sym_hash)->root.type == bfd_link_hash_defweak) 3388 && (sym_hash)->root.u.def.section == sec 3389 && (sym_hash)->root.u.def.value >= addr + count 3390 && (sym_hash)->root.u.def.value < toaddr) 3391 { 3392 if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr) 3393 { 3394 isym.st_size += count; 3395 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); 3396 } 3397 3398 (sym_hash)->root.u.def.value -= count; 3399 } 3400 else if (isym.st_shndx == sec_shndx 3401 && ((sym_hash)->root.type == bfd_link_hash_defined 3402 || (sym_hash)->root.type == bfd_link_hash_defweak) 3403 && (sym_hash)->root.u.def.section == sec 3404 && (sym_hash)->root.u.def.value < addr + count) 3405 { 3406 if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count 3407 && (sym_hash)->root.u.def.value+isym.st_size < toaddr) 3408 isym.st_size -= count; 3409 3410 if ((sym_hash)->root.u.def.value >= addr 3411 && (sym_hash)->root.u.def.value < addr + count) 3412 (sym_hash)->root.u.def.value = addr; 3413 3414 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); 3415 } 3416 3417 if (shndx) 3418 ++ shndx; 3419 } 3420 3421 return TRUE; 3422 } 3423 3424 #define NOP_OPCODE (0x0000) 3425 #define MOVHI 0x0640 /* 4byte. */ 3426 #define MOVHI_MASK 0x07e0 3427 #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */ 3428 #define MOVHI_R2(insn) ((insn) >> 11) 3429 #define MOVEA 0x0620 /* 2byte. */ 3430 #define MOVEA_MASK 0x07e0 3431 #define MOVEA_R1(insn) ((insn) & 0x1f) 3432 #define MOVEA_R2(insn) ((insn) >> 11) 3433 #define JARL_4 0x00040780 /* 4byte. */ 3434 #define JARL_4_MASK 0xFFFF07FF 3435 #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11) 3436 #define ADD_I 0x0240 /* 2byte. */ 3437 #define ADD_I_MASK 0x07e0 3438 #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */ 3439 #define ADD_R2(insn) ((insn) >> 11) 3440 #define JMP_R 0x0060 /* 2byte. */ 3441 #define JMP_R_MASK 0xFFE0 3442 #define JMP_R1(insn) ((insn) & 0x1f) 3443 3444 static bfd_boolean 3445 v850_elf_relax_section (bfd *abfd, 3446 asection *sec, 3447 struct bfd_link_info *link_info, 3448 bfd_boolean *again) 3449 { 3450 Elf_Internal_Shdr *symtab_hdr; 3451 Elf_Internal_Rela *internal_relocs; 3452 Elf_Internal_Rela *irel; 3453 Elf_Internal_Rela *irelend; 3454 Elf_Internal_Rela *irelalign = NULL; 3455 Elf_Internal_Sym *isymbuf = NULL; 3456 bfd_byte *contents = NULL; 3457 bfd_vma addr = 0; 3458 bfd_vma toaddr; 3459 int align_pad_size = 0; 3460 bfd_boolean result = TRUE; 3461 3462 *again = FALSE; 3463 3464 if (bfd_link_relocatable (link_info) 3465 || (sec->flags & SEC_RELOC) == 0 3466 || sec->reloc_count == 0) 3467 return TRUE; 3468 3469 symtab_hdr = & elf_tdata (abfd)->symtab_hdr; 3470 3471 internal_relocs = (_bfd_elf_link_read_relocs 3472 (abfd, sec, NULL, NULL, link_info->keep_memory)); 3473 if (internal_relocs == NULL) 3474 goto error_return; 3475 3476 irelend = internal_relocs + sec->reloc_count; 3477 3478 while (addr < sec->size) 3479 { 3480 toaddr = sec->size; 3481 3482 for (irel = internal_relocs; irel < irelend; irel ++) 3483 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN 3484 && irel->r_offset > addr 3485 && irel->r_offset < toaddr) 3486 toaddr = irel->r_offset; 3487 3488 #ifdef DEBUG_RELAX 3489 fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n", 3490 addr, toaddr, align_pad_size); 3491 #endif 3492 if (irelalign) 3493 { 3494 bfd_vma alignto; 3495 bfd_vma alignmoveto; 3496 3497 alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend); 3498 alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend); 3499 3500 if (alignmoveto < alignto) 3501 { 3502 bfd_vma i; 3503 3504 align_pad_size = alignto - alignmoveto; 3505 #ifdef DEBUG_RELAX 3506 fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n", 3507 alignmoveto, toaddr, align_pad_size); 3508 #endif 3509 if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto, 3510 toaddr, align_pad_size)) 3511 goto error_return; 3512 3513 for (i = BFD_ALIGN (toaddr - align_pad_size, 1); 3514 (i + 1) < toaddr; i += 2) 3515 bfd_put_16 (abfd, NOP_OPCODE, contents + i); 3516 3517 addr = alignmoveto; 3518 } 3519 else 3520 align_pad_size = 0; 3521 } 3522 3523 for (irel = internal_relocs; irel < irelend; irel++) 3524 { 3525 bfd_vma laddr; 3526 bfd_vma addend; 3527 bfd_vma symval; 3528 int insn[5]; 3529 int no_match = -1; 3530 Elf_Internal_Rela *hi_irelfn; 3531 Elf_Internal_Rela *lo_irelfn; 3532 Elf_Internal_Rela *irelcall; 3533 bfd_signed_vma foff; 3534 unsigned int r_type; 3535 3536 if (! (irel->r_offset >= addr && irel->r_offset < toaddr 3537 && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL 3538 || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP))) 3539 continue; 3540 3541 #ifdef DEBUG_RELAX 3542 fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n", 3543 irel->r_info, 3544 irel->r_offset, 3545 irel->r_addend ); 3546 #endif 3547 3548 /* Get the section contents. */ 3549 if (contents == NULL) 3550 { 3551 if (elf_section_data (sec)->this_hdr.contents != NULL) 3552 contents = elf_section_data (sec)->this_hdr.contents; 3553 else 3554 { 3555 if (! bfd_malloc_and_get_section (abfd, sec, &contents)) 3556 goto error_return; 3557 } 3558 } 3559 3560 /* Read this BFD's local symbols if we haven't done so already. */ 3561 if (isymbuf == NULL && symtab_hdr->sh_info != 0) 3562 { 3563 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; 3564 if (isymbuf == NULL) 3565 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, 3566 symtab_hdr->sh_info, 0, 3567 NULL, NULL, NULL); 3568 if (isymbuf == NULL) 3569 goto error_return; 3570 } 3571 3572 laddr = irel->r_offset; 3573 3574 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL) 3575 { 3576 /* Check code for -mlong-calls output. */ 3577 if (laddr + 16 <= (bfd_vma) sec->size) 3578 { 3579 insn[0] = bfd_get_16 (abfd, contents + laddr); 3580 insn[1] = bfd_get_16 (abfd, contents + laddr + 4); 3581 insn[2] = bfd_get_32 (abfd, contents + laddr + 8); 3582 insn[3] = bfd_get_16 (abfd, contents + laddr + 12); 3583 insn[4] = bfd_get_16 (abfd, contents + laddr + 14); 3584 3585 if ((insn[0] & MOVHI_MASK) != MOVHI 3586 || MOVHI_R1 (insn[0]) != 0) 3587 no_match = 0; 3588 3589 if (no_match < 0 3590 && ((insn[1] & MOVEA_MASK) != MOVEA 3591 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1]))) 3592 no_match = 1; 3593 3594 if (no_match < 0 3595 && (insn[2] & JARL_4_MASK) != JARL_4) 3596 no_match = 2; 3597 3598 if (no_match < 0 3599 && ((insn[3] & ADD_I_MASK) != ADD_I 3600 || ADD_I5 (insn[3]) != 4 3601 || JARL_R2 (insn[2]) != ADD_R2 (insn[3]))) 3602 no_match = 3; 3603 3604 if (no_match < 0 3605 && ((insn[4] & JMP_R_MASK) != JMP_R 3606 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4]))) 3607 no_match = 4; 3608 } 3609 else 3610 { 3611 _bfd_error_handler 3612 /* xgettext:c-format */ 3613 (_("%pB: %#" PRIx64 ": warning: %s points to " 3614 "unrecognized insns"), 3615 abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL"); 3616 continue; 3617 } 3618 3619 if (no_match >= 0) 3620 { 3621 _bfd_error_handler 3622 /* xgettext:c-format */ 3623 (_("%pB: %#" PRIx64 ": warning: %s points to " 3624 "unrecognized insn %#x"), 3625 abfd, 3626 (uint64_t) (irel->r_offset + no_match), 3627 "R_V850_LONGCALL", 3628 insn[no_match]); 3629 continue; 3630 } 3631 3632 /* Get the reloc for the address from which the register is 3633 being loaded. This reloc will tell us which function is 3634 actually being called. */ 3635 3636 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++) 3637 { 3638 r_type = ELF32_R_TYPE (hi_irelfn->r_info); 3639 3640 if (hi_irelfn->r_offset == laddr + 2 3641 && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1)) 3642 break; 3643 } 3644 3645 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++) 3646 { 3647 r_type = ELF32_R_TYPE (lo_irelfn->r_info); 3648 3649 if (lo_irelfn->r_offset == laddr + 6 3650 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO)) 3651 break; 3652 } 3653 3654 for (irelcall = internal_relocs; irelcall < irelend; irelcall ++) 3655 { 3656 r_type = ELF32_R_TYPE (irelcall->r_info); 3657 3658 if (irelcall->r_offset == laddr + 8 3659 && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22)) 3660 break; 3661 } 3662 3663 if ( hi_irelfn == irelend 3664 || lo_irelfn == irelend 3665 || irelcall == irelend) 3666 { 3667 _bfd_error_handler 3668 /* xgettext:c-format */ 3669 (_("%pB: %#" PRIx64 ": warning: %s points to " 3670 "unrecognized reloc"), 3671 abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL"); 3672 3673 continue; 3674 } 3675 3676 if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info) 3677 { 3678 Elf_Internal_Sym * isym; 3679 3680 /* A local symbol. */ 3681 isym = isymbuf + ELF32_R_SYM (irelcall->r_info); 3682 3683 symval = isym->st_value; 3684 } 3685 else 3686 { 3687 unsigned long indx; 3688 struct elf_link_hash_entry * h; 3689 3690 /* An external symbol. */ 3691 indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info; 3692 h = elf_sym_hashes (abfd)[indx]; 3693 BFD_ASSERT (h != NULL); 3694 3695 if ( h->root.type != bfd_link_hash_defined 3696 && h->root.type != bfd_link_hash_defweak) 3697 /* This appears to be a reference to an undefined 3698 symbol. Just ignore it--it will be caught by the 3699 regular reloc processing. */ 3700 continue; 3701 3702 symval = h->root.u.def.value; 3703 } 3704 3705 if (symval + irelcall->r_addend != irelcall->r_offset + 4) 3706 { 3707 _bfd_error_handler 3708 /* xgettext:c-format */ 3709 (_("%pB: %#" PRIx64 ": warning: %s points to " 3710 "unrecognized reloc %#" PRIx64), 3711 abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL", 3712 (uint64_t) irelcall->r_offset); 3713 continue; 3714 } 3715 3716 /* Get the value of the symbol referred to by the reloc. */ 3717 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) 3718 { 3719 Elf_Internal_Sym *isym; 3720 asection *sym_sec; 3721 3722 /* A local symbol. */ 3723 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info); 3724 3725 if (isym->st_shndx == SHN_UNDEF) 3726 sym_sec = bfd_und_section_ptr; 3727 else if (isym->st_shndx == SHN_ABS) 3728 sym_sec = bfd_abs_section_ptr; 3729 else if (isym->st_shndx == SHN_COMMON) 3730 sym_sec = bfd_com_section_ptr; 3731 else 3732 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); 3733 symval = (isym->st_value 3734 + sym_sec->output_section->vma 3735 + sym_sec->output_offset); 3736 } 3737 else 3738 { 3739 unsigned long indx; 3740 struct elf_link_hash_entry *h; 3741 3742 /* An external symbol. */ 3743 indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info; 3744 h = elf_sym_hashes (abfd)[indx]; 3745 BFD_ASSERT (h != NULL); 3746 3747 if ( h->root.type != bfd_link_hash_defined 3748 && h->root.type != bfd_link_hash_defweak) 3749 /* This appears to be a reference to an undefined 3750 symbol. Just ignore it--it will be caught by the 3751 regular reloc processing. */ 3752 continue; 3753 3754 symval = (h->root.u.def.value 3755 + h->root.u.def.section->output_section->vma 3756 + h->root.u.def.section->output_offset); 3757 } 3758 3759 addend = irel->r_addend; 3760 3761 foff = (symval + addend 3762 - (irel->r_offset 3763 + sec->output_section->vma 3764 + sec->output_offset 3765 + 4)); 3766 #ifdef DEBUG_RELAX 3767 fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n", 3768 irel->r_offset, 3769 (irel->r_offset 3770 + sec->output_section->vma 3771 + sec->output_offset), 3772 symval, addend, foff); 3773 #endif 3774 3775 if (foff < -0x100000 || foff >= 0x100000) 3776 /* After all that work, we can't shorten this function call. */ 3777 continue; 3778 3779 /* For simplicity of coding, we are going to modify the section 3780 contents, the section relocs, and the BFD symbol table. We 3781 must tell the rest of the code not to free up this 3782 information. It would be possible to instead create a table 3783 of changes which have to be made, as is done in coff-mips.c; 3784 that would be more work, but would require less memory when 3785 the linker is run. */ 3786 elf_section_data (sec)->relocs = internal_relocs; 3787 elf_section_data (sec)->this_hdr.contents = contents; 3788 symtab_hdr->contents = (bfd_byte *) isymbuf; 3789 3790 /* Replace the long call with a jarl. */ 3791 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850) 3792 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22); 3793 else 3794 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL); 3795 3796 addend = 0; 3797 3798 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) 3799 /* If this needs to be changed because of future relaxing, 3800 it will be handled here like other internal IND12W 3801 relocs. */ 3802 bfd_put_32 (abfd, 3803 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf), 3804 contents + irel->r_offset); 3805 else 3806 /* We can't fully resolve this yet, because the external 3807 symbol value may be changed by future relaxing. 3808 We let the final link phase handle it. */ 3809 bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11), 3810 contents + irel->r_offset); 3811 3812 hi_irelfn->r_info = 3813 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); 3814 lo_irelfn->r_info = 3815 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); 3816 irelcall->r_info = 3817 ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE); 3818 3819 if (! v850_elf_relax_delete_bytes (abfd, sec, 3820 irel->r_offset + 4, toaddr, 12)) 3821 goto error_return; 3822 3823 align_pad_size += 12; 3824 } 3825 else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP) 3826 { 3827 /* Check code for -mlong-jumps output. */ 3828 if (laddr + 10 <= (bfd_vma) sec->size) 3829 { 3830 insn[0] = bfd_get_16 (abfd, contents + laddr); 3831 insn[1] = bfd_get_16 (abfd, contents + laddr + 4); 3832 insn[2] = bfd_get_16 (abfd, contents + laddr + 8); 3833 3834 if ((insn[0] & MOVHI_MASK) != MOVHI 3835 || MOVHI_R1 (insn[0]) != 0) 3836 no_match = 0; 3837 3838 if (no_match < 0 3839 && ((insn[1] & MOVEA_MASK) != MOVEA 3840 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1]))) 3841 no_match = 1; 3842 3843 if (no_match < 0 3844 && ((insn[2] & JMP_R_MASK) != JMP_R 3845 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2]))) 3846 no_match = 2; 3847 } 3848 else 3849 { 3850 _bfd_error_handler 3851 /* xgettext:c-format */ 3852 (_("%pB: %#" PRIx64 ": warning: %s points to " 3853 "unrecognized insns"), 3854 abfd, (uint64_t) irel->r_offset, "R_V850_LONGJUMP"); 3855 continue; 3856 } 3857 3858 if (no_match >= 0) 3859 { 3860 _bfd_error_handler 3861 /* xgettext:c-format */ 3862 (_("%pB: %#" PRIx64 ": warning: %s points to " 3863 "unrecognized insn %#x"), 3864 abfd, 3865 (uint64_t) (irel->r_offset + no_match), 3866 "R_V850_LONGJUMP", 3867 insn[no_match]); 3868 continue; 3869 } 3870 3871 /* Get the reloc for the address from which the register is 3872 being loaded. This reloc will tell us which function is 3873 actually being called. */ 3874 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++) 3875 { 3876 r_type = ELF32_R_TYPE (hi_irelfn->r_info); 3877 3878 if (hi_irelfn->r_offset == laddr + 2 3879 && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1)) 3880 break; 3881 } 3882 3883 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++) 3884 { 3885 r_type = ELF32_R_TYPE (lo_irelfn->r_info); 3886 3887 if (lo_irelfn->r_offset == laddr + 6 3888 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO)) 3889 break; 3890 } 3891 3892 if ( hi_irelfn == irelend 3893 || lo_irelfn == irelend) 3894 { 3895 _bfd_error_handler 3896 /* xgettext:c-format */ 3897 (_("%pB: %#" PRIx64 ": warning: %s points to " 3898 "unrecognized reloc"), 3899 abfd, (uint64_t) irel->r_offset, "R_V850_LONGJUMP"); 3900 continue; 3901 } 3902 3903 /* Get the value of the symbol referred to by the reloc. */ 3904 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) 3905 { 3906 Elf_Internal_Sym * isym; 3907 asection * sym_sec; 3908 3909 /* A local symbol. */ 3910 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info); 3911 3912 if (isym->st_shndx == SHN_UNDEF) 3913 sym_sec = bfd_und_section_ptr; 3914 else if (isym->st_shndx == SHN_ABS) 3915 sym_sec = bfd_abs_section_ptr; 3916 else if (isym->st_shndx == SHN_COMMON) 3917 sym_sec = bfd_com_section_ptr; 3918 else 3919 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); 3920 symval = (isym->st_value 3921 + sym_sec->output_section->vma 3922 + sym_sec->output_offset); 3923 #ifdef DEBUG_RELAX 3924 { 3925 char * name = bfd_elf_string_from_elf_section 3926 (abfd, symtab_hdr->sh_link, isym->st_name); 3927 3928 fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n", 3929 sym_sec->name, name, isym->st_name, 3930 sym_sec->output_section->vma, 3931 sym_sec->output_offset, 3932 isym->st_value, irel->r_addend); 3933 } 3934 #endif 3935 } 3936 else 3937 { 3938 unsigned long indx; 3939 struct elf_link_hash_entry * h; 3940 3941 /* An external symbol. */ 3942 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; 3943 h = elf_sym_hashes (abfd)[indx]; 3944 BFD_ASSERT (h != NULL); 3945 3946 if ( h->root.type != bfd_link_hash_defined 3947 && h->root.type != bfd_link_hash_defweak) 3948 /* This appears to be a reference to an undefined 3949 symbol. Just ignore it--it will be caught by the 3950 regular reloc processing. */ 3951 continue; 3952 3953 symval = (h->root.u.def.value 3954 + h->root.u.def.section->output_section->vma 3955 + h->root.u.def.section->output_offset); 3956 #ifdef DEBUG_RELAX 3957 fprintf (stderr, 3958 "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n", 3959 sec->name, h->root.root.string, h->root.u.def.value, 3960 sec->output_section->vma, sec->output_offset, irel->r_addend); 3961 #endif 3962 } 3963 3964 addend = irel->r_addend; 3965 3966 foff = (symval + addend 3967 - (irel->r_offset 3968 + sec->output_section->vma 3969 + sec->output_offset 3970 + 4)); 3971 #ifdef DEBUG_RELAX 3972 fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n", 3973 irel->r_offset, 3974 (irel->r_offset 3975 + sec->output_section->vma 3976 + sec->output_offset), 3977 symval, addend, foff); 3978 #endif 3979 if (foff < -0x100000 || foff >= 0x100000) 3980 /* After all that work, we can't shorten this function call. */ 3981 continue; 3982 3983 /* For simplicity of coding, we are going to modify the section 3984 contents, the section relocs, and the BFD symbol table. We 3985 must tell the rest of the code not to free up this 3986 information. It would be possible to instead create a table 3987 of changes which have to be made, as is done in coff-mips.c; 3988 that would be more work, but would require less memory when 3989 the linker is run. */ 3990 elf_section_data (sec)->relocs = internal_relocs; 3991 elf_section_data (sec)->this_hdr.contents = contents; 3992 symtab_hdr->contents = (bfd_byte *) isymbuf; 3993 3994 if (foff < -0x100 || foff >= 0x100) 3995 { 3996 /* Replace the long jump with a jr. */ 3997 3998 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850) 3999 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22); 4000 else 4001 irel->r_info = 4002 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL); 4003 4004 irel->r_addend = addend; 4005 addend = 0; 4006 4007 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) 4008 /* If this needs to be changed because of future relaxing, 4009 it will be handled here like other internal IND12W 4010 relocs. */ 4011 bfd_put_32 (abfd, 4012 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf), 4013 contents + irel->r_offset); 4014 else 4015 /* We can't fully resolve this yet, because the external 4016 symbol value may be changed by future relaxing. 4017 We let the final link phase handle it. */ 4018 bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset); 4019 4020 hi_irelfn->r_info = 4021 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); 4022 lo_irelfn->r_info = 4023 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); 4024 if (!v850_elf_relax_delete_bytes (abfd, sec, 4025 irel->r_offset + 4, toaddr, 6)) 4026 goto error_return; 4027 4028 align_pad_size += 6; 4029 } 4030 else 4031 { 4032 /* Replace the long jump with a br. */ 4033 4034 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850) 4035 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9); 4036 else 4037 irel->r_info = 4038 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL); 4039 4040 irel->r_addend = addend; 4041 addend = 0; 4042 4043 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) 4044 /* If this needs to be changed because of future relaxing, 4045 it will be handled here like other internal IND12W 4046 relocs. */ 4047 bfd_put_16 (abfd, 4048 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070), 4049 contents + irel->r_offset); 4050 else 4051 /* We can't fully resolve this yet, because the external 4052 symbol value may be changed by future relaxing. 4053 We let the final link phase handle it. */ 4054 bfd_put_16 (abfd, 0x0585, contents + irel->r_offset); 4055 4056 hi_irelfn->r_info = 4057 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); 4058 lo_irelfn->r_info = 4059 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); 4060 if (!v850_elf_relax_delete_bytes (abfd, sec, 4061 irel->r_offset + 2, toaddr, 8)) 4062 goto error_return; 4063 4064 align_pad_size += 8; 4065 } 4066 } 4067 } 4068 4069 irelalign = NULL; 4070 for (irel = internal_relocs; irel < irelend; irel++) 4071 { 4072 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN 4073 && irel->r_offset == toaddr) 4074 { 4075 irel->r_offset -= align_pad_size; 4076 4077 if (irelalign == NULL || irelalign->r_addend > irel->r_addend) 4078 irelalign = irel; 4079 } 4080 } 4081 4082 addr = toaddr; 4083 } 4084 4085 if (!irelalign) 4086 { 4087 #ifdef DEBUG_RELAX 4088 fprintf (stderr, "relax pad %d shorten %d -> %d\n", 4089 align_pad_size, 4090 sec->size, 4091 sec->size - align_pad_size); 4092 #endif 4093 sec->size -= align_pad_size; 4094 } 4095 4096 finish: 4097 if (elf_section_data (sec)->relocs != internal_relocs) 4098 free (internal_relocs); 4099 4100 if (elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents) 4101 free (contents); 4102 4103 if (symtab_hdr->contents != (bfd_byte *) isymbuf) 4104 free (isymbuf); 4105 4106 return result; 4107 4108 error_return: 4109 result = FALSE; 4110 goto finish; 4111 } 4112 4113 static const struct bfd_elf_special_section v850_elf_special_sections[] = 4114 { 4115 { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) }, 4116 { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE 4117 + SHF_EXECINSTR) }, 4118 { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC 4119 + SHF_V850_GPREL) }, 4120 { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC 4121 + SHF_V850_R0REL) }, 4122 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE 4123 + SHF_V850_GPREL) }, 4124 { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE 4125 + SHF_V850_GPREL) }, 4126 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE 4127 + SHF_V850_GPREL) }, 4128 { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE 4129 + SHF_V850_EPREL) }, 4130 { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE 4131 + SHF_V850_R0REL) }, 4132 { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE 4133 + SHF_V850_EPREL) }, 4134 { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE 4135 + SHF_V850_R0REL) }, 4136 { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE 4137 + SHF_V850_R0REL) }, 4138 { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE 4139 + SHF_V850_R0REL) }, 4140 { NULL, 0, 0, 0, 0 } 4141 }; 4142 4143 #define TARGET_LITTLE_SYM v850_elf32_vec 4144 #define TARGET_LITTLE_NAME "elf32-v850" 4145 #define ELF_ARCH bfd_arch_v850 4146 #define ELF_MACHINE_CODE EM_V850 4147 #define ELF_MACHINE_ALT1 EM_CYGNUS_V850 4148 #define ELF_MAXPAGESIZE 0x1000 4149 4150 #define elf_info_to_howto v850_elf_info_to_howto_rela 4151 #define elf_info_to_howto_rel v850_elf_info_to_howto_rel 4152 4153 #define elf_backend_check_relocs v850_elf_check_relocs 4154 #define elf_backend_relocate_section v850_elf_relocate_section 4155 #define elf_backend_object_p v850_elf_object_p 4156 #define elf_backend_final_write_processing v850_elf_final_write_processing 4157 #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section 4158 #define elf_backend_symbol_processing v850_elf_symbol_processing 4159 #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook 4160 #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook 4161 #define elf_backend_section_from_shdr v850_elf_section_from_shdr 4162 #define elf_backend_fake_sections v850_elf_fake_sections 4163 #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook 4164 #define elf_backend_special_sections v850_elf_special_sections 4165 4166 #define elf_backend_can_gc_sections 1 4167 #define elf_backend_rela_normal 1 4168 4169 #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name 4170 #define bfd_elf32_bfd_is_target_special_symbol v850_elf_is_target_special_symbol 4171 4172 #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup 4173 #define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup 4174 #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data 4175 #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags 4176 #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data 4177 #define bfd_elf32_bfd_relax_section v850_elf_relax_section 4178 4179 #define elf_symbol_leading_char '_' 4180 4181 #undef elf32_bed 4182 #define elf32_bed elf32_v850_bed 4183 4184 #include "elf32-target.h" 4185 4186 /* Map BFD reloc types to V800 ELF reloc types. */ 4187 4188 static const struct v850_elf_reloc_map v800_elf_reloc_map[] = 4189 { 4190 { BFD_RELOC_NONE, R_V810_NONE }, 4191 { BFD_RELOC_8, R_V810_BYTE }, 4192 { BFD_RELOC_16, R_V810_HWORD }, 4193 { BFD_RELOC_32, R_V810_WORD }, 4194 { BFD_RELOC_LO16, R_V810_WLO }, 4195 { BFD_RELOC_HI16, R_V810_WHI }, 4196 { BFD_RELOC_HI16_S, R_V810_WHI1 }, 4197 { BFD_RELOC_V850_32_PCREL, R_V850_PC32 }, 4198 { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 }, 4199 { BFD_RELOC_V850_17_PCREL, R_V850_PC17 }, 4200 { BFD_RELOC_V850_16_PCREL, R_V850_PC16U }, 4201 { BFD_RELOC_V850_9_PCREL, R_V850_PC9 }, 4202 { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */ 4203 { BFD_RELOC_V850_23, R_V850_WLO23 }, 4204 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO }, 4205 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD }, 4206 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD }, 4207 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD }, 4208 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 } 4209 }; 4210 4211 /* Map a bfd relocation into the appropriate howto structure. */ 4212 4213 static reloc_howto_type * 4214 v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code) 4215 { 4216 unsigned int i; 4217 4218 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850); 4219 4220 for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;) 4221 if (v800_elf_reloc_map[i].bfd_reloc_val == code) 4222 { 4223 unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val; 4224 unsigned int idx = elf_reloc_val - R_V810_NONE; 4225 4226 BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val); 4227 4228 return v800_elf_howto_table + idx; 4229 } 4230 4231 #ifdef DEBUG 4232 fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code); 4233 #endif 4234 return NULL; 4235 } 4236 4237 static reloc_howto_type * 4238 v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name) 4239 { 4240 unsigned int i; 4241 4242 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850); 4243 4244 for (i = ARRAY_SIZE (v800_elf_howto_table); i--;) 4245 if (v800_elf_howto_table[i].name != NULL 4246 && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0) 4247 return v800_elf_howto_table + i; 4248 4249 return NULL; 4250 } 4251 4252 4253 /* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */ 4254 4255 static bfd_boolean 4256 v800_elf_info_to_howto (bfd * abfd, 4257 arelent * cache_ptr, 4258 Elf_Internal_Rela * dst) 4259 { 4260 unsigned int r_type = ELF32_R_TYPE (dst->r_info); 4261 4262 if (r_type == R_V800_NONE) 4263 r_type = R_V810_NONE; 4264 4265 if (bfd_get_arch (abfd) != bfd_arch_v850_rh850 4266 || r_type >= (unsigned int) R_V800_max 4267 || r_type < (unsigned int) R_V810_NONE 4268 || (r_type - R_V810_NONE) >= ARRAY_SIZE (v800_elf_howto_table)) 4269 { 4270 /* xgettext:c-format */ 4271 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), 4272 abfd, r_type); 4273 bfd_set_error (bfd_error_bad_value); 4274 return FALSE; 4275 } 4276 4277 cache_ptr->howto = v800_elf_howto_table + (r_type - R_V810_NONE); 4278 return TRUE; 4279 } 4280 4281 #undef TARGET_LITTLE_SYM 4282 #define TARGET_LITTLE_SYM v800_elf32_vec 4283 #undef TARGET_LITTLE_NAME 4284 #define TARGET_LITTLE_NAME "elf32-v850-rh850" 4285 #undef ELF_ARCH 4286 #define ELF_ARCH bfd_arch_v850_rh850 4287 #undef ELF_MACHINE_CODE 4288 #define ELF_MACHINE_CODE EM_V800 4289 #undef ELF_MACHINE_ALT1 4290 4291 #undef elf32_bed 4292 #define elf32_bed elf32_v850_rh850_bed 4293 4294 #undef elf_info_to_howto 4295 #define elf_info_to_howto v800_elf_info_to_howto 4296 #undef elf_info_to_howto_rel 4297 #define elf_info_to_howto_rel NULL 4298 #undef bfd_elf32_bfd_reloc_type_lookup 4299 #define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup 4300 #undef bfd_elf32_bfd_reloc_name_lookup 4301 #define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup 4302 4303 #include "elf32-target.h" 4304