elf32-v850.c revision 1.3
1/* V850-specific support for 32-bit ELF 2 Copyright (C) 1996-2015 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 33/* Sign-extend a 17-bit number. */ 34#define SEXT17(x) ((((x) & 0x1ffff) ^ 0x10000) - 0x10000) 35 36/* Sign-extend a 22-bit number. */ 37#define SEXT22(x) ((((x) & 0x3fffff) ^ 0x200000) - 0x200000) 38 39static reloc_howto_type v850_elf_howto_table[]; 40 41/* Look through the relocs for a section during the first phase, and 42 allocate space in the global offset table or procedure linkage 43 table. */ 44 45static bfd_boolean 46v850_elf_check_relocs (bfd *abfd, 47 struct bfd_link_info *info, 48 asection *sec, 49 const Elf_Internal_Rela *relocs) 50{ 51 bfd_boolean ret = TRUE; 52 Elf_Internal_Shdr *symtab_hdr; 53 struct elf_link_hash_entry **sym_hashes; 54 const Elf_Internal_Rela *rel; 55 const Elf_Internal_Rela *rel_end; 56 unsigned int r_type; 57 int other = 0; 58 const char *common = NULL; 59 60 if (bfd_link_relocatable (info)) 61 return TRUE; 62 63#ifdef DEBUG 64 _bfd_error_handler ("v850_elf_check_relocs called for section %A in %B", 65 sec, abfd); 66#endif 67 68 symtab_hdr = &elf_tdata (abfd)->symtab_hdr; 69 sym_hashes = elf_sym_hashes (abfd); 70 71 rel_end = relocs + sec->reloc_count; 72 for (rel = relocs; rel < rel_end; rel++) 73 { 74 unsigned long r_symndx; 75 struct elf_link_hash_entry *h; 76 77 r_symndx = ELF32_R_SYM (rel->r_info); 78 if (r_symndx < symtab_hdr->sh_info) 79 h = NULL; 80 else 81 { 82 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 83 while (h->root.type == bfd_link_hash_indirect 84 || h->root.type == bfd_link_hash_warning) 85 h = (struct elf_link_hash_entry *) h->root.u.i.link; 86 87 /* PR15323, ref flags aren't set for references in the same 88 object. */ 89 h->root.non_ir_ref = 1; 90 } 91 92 r_type = ELF32_R_TYPE (rel->r_info); 93 switch (r_type) 94 { 95 default: 96 break; 97 98 /* This relocation describes the C++ object vtable hierarchy. 99 Reconstruct it for later use during GC. */ 100 case R_V850_GNU_VTINHERIT: 101 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) 102 return FALSE; 103 break; 104 105 /* This relocation describes which C++ vtable entries 106 are actually used. Record for later use during GC. */ 107 case R_V850_GNU_VTENTRY: 108 BFD_ASSERT (h != NULL); 109 if (h != NULL 110 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) 111 return FALSE; 112 break; 113 114 case R_V850_SDA_16_16_SPLIT_OFFSET: 115 case R_V850_SDA_16_16_OFFSET: 116 case R_V850_SDA_15_16_OFFSET: 117 case R_V810_GPWLO_1: 118 case R_V850_HWLO: 119 case R_V850_HWLO_1: 120 other = V850_OTHER_SDA; 121 common = ".scommon"; 122 goto small_data_common; 123 124 case R_V850_ZDA_16_16_SPLIT_OFFSET: 125 case R_V850_ZDA_16_16_OFFSET: 126 case R_V850_ZDA_15_16_OFFSET: 127 other = V850_OTHER_ZDA; 128 common = ".zcommon"; 129 goto small_data_common; 130 131 case R_V850_TDA_4_4_OFFSET: 132 case R_V850_TDA_4_5_OFFSET: 133 case R_V850_TDA_7_7_OFFSET: 134 case R_V850_TDA_6_8_OFFSET: 135 case R_V850_TDA_7_8_OFFSET: 136 case R_V850_TDA_16_16_OFFSET: 137 other = V850_OTHER_TDA; 138 common = ".tcommon"; 139 /* fall through */ 140 141#define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA) 142 143 small_data_common: 144 if (h) 145 { 146 /* Flag which type of relocation was used. */ 147 h->other |= other; 148 if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK) 149 && (h->other & V850_OTHER_ERROR) == 0) 150 { 151 const char * msg; 152 static char buff[200]; /* XXX */ 153 154 switch (h->other & V850_OTHER_MASK) 155 { 156 default: 157 msg = _("Variable `%s' cannot occupy in multiple small data regions"); 158 break; 159 case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA: 160 msg = _("Variable `%s' can only be in one of the small, zero, and tiny data regions"); 161 break; 162 case V850_OTHER_SDA | V850_OTHER_ZDA: 163 msg = _("Variable `%s' cannot be in both small and zero data regions simultaneously"); 164 break; 165 case V850_OTHER_SDA | V850_OTHER_TDA: 166 msg = _("Variable `%s' cannot be in both small and tiny data regions simultaneously"); 167 break; 168 case V850_OTHER_ZDA | V850_OTHER_TDA: 169 msg = _("Variable `%s' cannot be in both zero and tiny data regions simultaneously"); 170 break; 171 } 172 173 sprintf (buff, msg, h->root.root.string); 174 info->callbacks->warning (info, buff, h->root.root.string, 175 abfd, h->root.u.def.section, 176 (bfd_vma) 0); 177 178 bfd_set_error (bfd_error_bad_value); 179 h->other |= V850_OTHER_ERROR; 180 ret = FALSE; 181 } 182 } 183 184 if (h && h->root.type == bfd_link_hash_common 185 && h->root.u.c.p 186 && !strcmp (bfd_get_section_name (abfd, h->root.u.c.p->section), "COMMON")) 187 { 188 asection * section; 189 190 section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common); 191 section->flags |= SEC_IS_COMMON; 192 } 193 194#ifdef DEBUG 195 fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n", 196 v850_elf_howto_table[ (int)r_type ].name, 197 (h && h->root.root.string) ? h->root.root.string : "<unknown>", 198 (h->root.type == bfd_link_hash_common) ? ", symbol is common" : ""); 199#endif 200 break; 201 } 202 } 203 204 return ret; 205} 206 207/* In the old version, when an entry was checked out from the table, 208 it was deleted. This produced an error if the entry was needed 209 more than once, as the second attempted retry failed. 210 211 In the current version, the entry is not deleted, instead we set 212 the field 'found' to TRUE. If a second lookup matches the same 213 entry, then we know that the hi16s reloc has already been updated 214 and does not need to be updated a second time. 215 216 TODO - TOFIX: If it is possible that we need to restore 2 different 217 addresses from the same table entry, where the first generates an 218 overflow, whilst the second do not, then this code will fail. */ 219 220typedef struct hi16s_location 221{ 222 bfd_vma addend; 223 bfd_byte * address; 224 unsigned long counter; 225 bfd_boolean found; 226 struct hi16s_location * next; 227} 228hi16s_location; 229 230static hi16s_location * previous_hi16s; 231static hi16s_location * free_hi16s; 232static unsigned long hi16s_counter; 233 234static void 235remember_hi16s_reloc (bfd *abfd, bfd_vma addend, bfd_byte *address) 236{ 237 hi16s_location * entry = NULL; 238 bfd_size_type amt = sizeof (* free_hi16s); 239 240 /* Find a free structure. */ 241 if (free_hi16s == NULL) 242 free_hi16s = bfd_zalloc (abfd, amt); 243 244 entry = free_hi16s; 245 free_hi16s = free_hi16s->next; 246 247 entry->addend = addend; 248 entry->address = address; 249 entry->counter = hi16s_counter ++; 250 entry->found = FALSE; 251 entry->next = previous_hi16s; 252 previous_hi16s = entry; 253 254 /* Cope with wrap around of our counter. */ 255 if (hi16s_counter == 0) 256 { 257 /* XXX: Assume that all counter entries differ only in their low 16 bits. */ 258 for (entry = previous_hi16s; entry != NULL; entry = entry->next) 259 entry->counter &= 0xffff; 260 261 hi16s_counter = 0x10000; 262 } 263} 264 265static bfd_byte * 266find_remembered_hi16s_reloc (bfd_vma addend, bfd_boolean *already_found) 267{ 268 hi16s_location *match = NULL; 269 hi16s_location *entry; 270 bfd_byte *addr; 271 272 /* Search the table. Record the most recent entry that matches. */ 273 for (entry = previous_hi16s; entry; entry = entry->next) 274 { 275 if (entry->addend == addend 276 && (match == NULL || match->counter < entry->counter)) 277 { 278 match = entry; 279 } 280 } 281 282 if (match == NULL) 283 return NULL; 284 285 /* Extract the address. */ 286 addr = match->address; 287 288 /* Remember if this entry has already been used before. */ 289 if (already_found) 290 * already_found = match->found; 291 292 /* Note that this entry has now been used. */ 293 match->found = TRUE; 294 295 return addr; 296} 297 298/* Calculate the final operand value for a R_V850_LO16 or 299 R_V850_LO16_SPLIT_OFFSET. *INSN is the current operand value and 300 ADDEND is the sum of the relocation symbol and offset. Store the 301 operand value in *INSN and return true on success. 302 303 The assembler has already done some of this: If the value stored in 304 the instruction has its 15th bit set, (counting from zero) then the 305 assembler will have added 1 to the value stored in the associated 306 HI16S reloc. So for example, these relocations: 307 308 movhi hi( fred ), r0, r1 309 movea lo( fred ), r1, r1 310 311 will store 0 in the value fields for the MOVHI and MOVEA instructions 312 and addend will be the address of fred, but for these instructions: 313 314 movhi hi( fred + 0x123456 ), r0, r1 315 movea lo( fred + 0x123456 ), r1, r1 316 317 the value stored in the MOVHI instruction will be 0x12 and the value 318 stored in the MOVEA instruction will be 0x3456. If however the 319 instructions were: 320 321 movhi hi( fred + 0x10ffff ), r0, r1 322 movea lo( fred + 0x10ffff ), r1, r1 323 324 then the value stored in the MOVHI instruction would be 0x11 (not 325 0x10) and the value stored in the MOVEA instruction would be 0xffff. 326 Thus (assuming for the moment that the addend is 0), at run time the 327 MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction 328 adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if 329 the instructions were: 330 331 movhi hi( fred - 1 ), r0, r1 332 movea lo( fred - 1 ), r1, r1 333 334 then 0 is stored in the MOVHI instruction and -1 is stored in the 335 MOVEA instruction. 336 337 Overflow can occur if the addition of the value stored in the 338 instruction plus the addend sets the 15th bit when before it was clear. 339 This is because the 15th bit will be sign extended into the high part, 340 thus reducing its value by one, but since the 15th bit was originally 341 clear, the assembler will not have added 1 to the previous HI16S reloc 342 to compensate for this effect. For example: 343 344 movhi hi( fred + 0x123456 ), r0, r1 345 movea lo( fred + 0x123456 ), r1, r1 346 347 The value stored in HI16S reloc is 0x12, the value stored in the LO16 348 reloc is 0x3456. If we assume that the address of fred is 0x00007000 349 then the relocations become: 350 351 HI16S: 0x0012 + (0x00007000 >> 16) = 0x12 352 LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456 353 354 but when the instructions are executed, the MOVEA instruction's value 355 is signed extended, so the sum becomes: 356 357 0x00120000 358 + 0xffffa456 359 ------------ 360 0x0011a456 but 'fred + 0x123456' = 0x0012a456 361 362 Note that if the 15th bit was set in the value stored in the LO16 363 reloc, then we do not have to do anything: 364 365 movhi hi( fred + 0x10ffff ), r0, r1 366 movea lo( fred + 0x10ffff ), r1, r1 367 368 HI16S: 0x0011 + (0x00007000 >> 16) = 0x11 369 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff 370 371 0x00110000 372 + 0x00006fff 373 ------------ 374 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff 375 376 Overflow can also occur if the computation carries into the 16th bit 377 and it also results in the 15th bit having the same value as the 15th 378 bit of the original value. What happens is that the HI16S reloc 379 will have already examined the 15th bit of the original value and 380 added 1 to the high part if the bit is set. This compensates for the 381 sign extension of 15th bit of the result of the computation. But now 382 there is a carry into the 16th bit, and this has not been allowed for. 383 384 So, for example if fred is at address 0xf000: 385 386 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set] 387 movea lo( fred + 0xffff ), r1, r1 388 389 HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001 390 LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost) 391 392 0x00010000 393 + 0xffffefff 394 ------------ 395 0x0000efff but 'fred + 0xffff' = 0x0001efff 396 397 Similarly, if the 15th bit remains clear, but overflow occurs into 398 the 16th bit then (assuming the address of fred is 0xf000): 399 400 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear] 401 movea lo( fred + 0x7000 ), r1, r1 402 403 HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000 404 LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost) 405 406 0x00000000 407 + 0x00006fff 408 ------------ 409 0x00006fff but 'fred + 0x7000' = 0x00016fff 410 411 Note - there is no need to change anything if a carry occurs, and the 412 15th bit changes its value from being set to being clear, as the HI16S 413 reloc will have already added in 1 to the high part for us: 414 415 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set] 416 movea lo( fred + 0xffff ), r1, r1 417 418 HI16S: 0x0001 + (0x00007000 >> 16) 419 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost) 420 421 0x00010000 422 + 0x00006fff (bit 15 not set, so the top half is zero) 423 ------------ 424 0x00016fff which is right (assuming that fred is at 0x7000) 425 426 but if the 15th bit goes from being clear to being set, then we must 427 once again handle overflow: 428 429 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear] 430 movea lo( fred + 0x7000 ), r1, r1 431 432 HI16S: 0x0000 + (0x0000ffff >> 16) 433 LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16) 434 435 0x00000000 436 + 0x00006fff (bit 15 not set, so the top half is zero) 437 ------------ 438 0x00006fff which is wrong (assuming that fred is at 0xffff). */ 439 440static bfd_boolean 441v850_elf_perform_lo16_relocation (bfd *abfd, unsigned long *insn, 442 unsigned long addend) 443{ 444#define BIT15_SET(x) ((x) & 0x8000) 445#define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff) 446 447 if ((BIT15_SET (*insn + addend) && ! BIT15_SET (addend)) 448 || (OVERFLOWS (addend, *insn) 449 && ((! BIT15_SET (*insn)) || (BIT15_SET (addend))))) 450 { 451 bfd_boolean already_updated; 452 bfd_byte *hi16s_address = find_remembered_hi16s_reloc 453 (addend, & already_updated); 454 455 /* Amend the matching HI16_S relocation. */ 456 if (hi16s_address != NULL) 457 { 458 if (! already_updated) 459 { 460 unsigned long hi_insn = bfd_get_16 (abfd, hi16s_address); 461 hi_insn += 1; 462 bfd_put_16 (abfd, hi_insn, hi16s_address); 463 } 464 } 465 else 466 { 467 (*_bfd_error_handler) (_("FAILED to find previous HI16 reloc")); 468 return FALSE; 469 } 470 } 471#undef OVERFLOWS 472#undef BIT15_SET 473 474 /* Do not complain if value has top bit set, as this has been 475 anticipated. */ 476 *insn = (*insn + addend) & 0xffff; 477 return TRUE; 478} 479 480/* FIXME: The code here probably ought to be removed and the code in reloc.c 481 allowed to do its stuff instead. At least for most of the relocs, anyway. */ 482 483static bfd_reloc_status_type 484v850_elf_perform_relocation (bfd *abfd, 485 unsigned int r_type, 486 bfd_vma addend, 487 bfd_byte *address) 488{ 489 unsigned long insn; 490 unsigned long result; 491 bfd_signed_vma saddend = (bfd_signed_vma) addend; 492 493 switch (r_type) 494 { 495 default: 496#ifdef DEBUG 497 fprintf (stderr, "%B: reloc number %d not recognised\n", abfd, r_type); 498#endif 499 return bfd_reloc_notsupported; 500 501 case R_V850_REL32: 502 case R_V850_ABS32: 503 case R_V810_WORD: 504 case R_V850_PC32: 505 bfd_put_32 (abfd, addend, address); 506 return bfd_reloc_ok; 507 508 case R_V850_WLO23: 509 case R_V850_23: 510 insn = bfd_get_32 (abfd, address); 511 insn &= ~((0x7f << 4) | (0x7fff80 << (16-7))); 512 insn |= ((addend & 0x7f) << 4) | ((addend & 0x7fff80) << (16-7)); 513 bfd_put_32 (abfd, (bfd_vma) insn, address); 514 return bfd_reloc_ok; 515 516 case R_V850_PCR22: 517 case R_V850_22_PCREL: 518 if (saddend > 0x1fffff || saddend < -0x200000) 519 return bfd_reloc_overflow; 520 521 if ((addend % 2) != 0) 522 return bfd_reloc_dangerous; 523 524 insn = bfd_get_32 (abfd, address); 525 insn &= ~0xfffe003f; 526 insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16)); 527 bfd_put_32 (abfd, (bfd_vma) insn, address); 528 return bfd_reloc_ok; 529 530 case R_V850_PC17: 531 case R_V850_17_PCREL: 532 if (saddend > 0xffff || saddend < -0x10000) 533 return bfd_reloc_overflow; 534 535 if ((addend % 2) != 0) 536 return bfd_reloc_dangerous; 537 538 insn = bfd_get_32 (abfd, address); 539 insn &= ~ 0xfffe0010; 540 insn |= ((addend & 0xfffe) << 16) | ((addend & 0x10000) >> (16-4)); 541 break; 542 543 case R_V850_PC16U: 544 case R_V850_16_PCREL: 545 if ((saddend < -0xffff) || (saddend > 0)) 546 return bfd_reloc_overflow; 547 548 if ((addend % 2) != 0) 549 return bfd_reloc_dangerous; 550 551 insn = bfd_get_16 (abfd, address); 552 insn &= ~0xfffe; 553 insn |= (-addend & 0xfffe); 554 break; 555 556 case R_V850_PC9: 557 case R_V850_9_PCREL: 558 if (saddend > 0xff || saddend < -0x100) 559 return bfd_reloc_overflow; 560 561 if ((addend % 2) != 0) 562 return bfd_reloc_dangerous; 563 564 insn = bfd_get_16 (abfd, address); 565 insn &= ~ 0xf870; 566 insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3); 567 break; 568 569 case R_V810_WHI: 570 case R_V850_HI16: 571 addend += (bfd_get_16 (abfd, address) << 16); 572 addend = (addend >> 16); 573 insn = addend; 574 break; 575 576 case R_V810_WHI1: 577 case R_V850_HI16_S: 578 /* Remember where this relocation took place. */ 579 remember_hi16s_reloc (abfd, addend, address); 580 581 addend += (bfd_get_16 (abfd, address) << 16); 582 addend = (addend >> 16) + ((addend & 0x8000) != 0); 583 584 /* This relocation cannot overflow. */ 585 if (addend > 0xffff) 586 addend = 0; 587 588 insn = addend; 589 break; 590 591 case R_V810_WLO: 592 case R_V850_LO16: 593 insn = bfd_get_16 (abfd, address); 594 if (! v850_elf_perform_lo16_relocation (abfd, &insn, addend)) 595 return bfd_reloc_overflow; 596 break; 597 598 case R_V810_BYTE: 599 case R_V850_8: 600 addend += (char) bfd_get_8 (abfd, address); 601 602 saddend = (bfd_signed_vma) addend; 603 604 if (saddend > 0x7f || saddend < -0x80) 605 return bfd_reloc_overflow; 606 607 bfd_put_8 (abfd, addend, address); 608 return bfd_reloc_ok; 609 610 case R_V850_CALLT_16_16_OFFSET: 611 addend += bfd_get_16 (abfd, address); 612 613 saddend = (bfd_signed_vma) addend; 614 615 if (saddend > 0xffff || saddend < 0) 616 return bfd_reloc_overflow; 617 618 insn = addend; 619 break; 620 621 case R_V850_CALLT_15_16_OFFSET: 622 insn = bfd_get_16 (abfd, address); 623 624 addend += insn & 0xfffe; 625 626 saddend = (bfd_signed_vma) addend; 627 628 if (saddend > 0xffff || saddend < 0) 629 return bfd_reloc_overflow; 630 631 insn = (0xfffe & addend) 632 | (insn & ~0xfffe); 633 break; 634 635 case R_V850_CALLT_6_7_OFFSET: 636 insn = bfd_get_16 (abfd, address); 637 addend += ((insn & 0x3f) << 1); 638 639 saddend = (bfd_signed_vma) addend; 640 641 if (saddend > 0x7e || saddend < 0) 642 return bfd_reloc_overflow; 643 644 if (addend & 1) 645 return bfd_reloc_dangerous; 646 647 insn &= 0xff80; 648 insn |= (addend >> 1); 649 break; 650 651 case R_V850_16: 652 case R_V810_HWORD: 653 case R_V850_SDA_16_16_OFFSET: 654 case R_V850_ZDA_16_16_OFFSET: 655 case R_V850_TDA_16_16_OFFSET: 656 addend += bfd_get_16 (abfd, address); 657 658 saddend = (bfd_signed_vma) addend; 659 660 if (saddend > 0x7fff || saddend < -0x8000) 661 return bfd_reloc_overflow; 662 663 insn = addend; 664 break; 665 666 case R_V850_16_S1: 667 case R_V850_SDA_15_16_OFFSET: 668 case R_V850_ZDA_15_16_OFFSET: 669 case R_V810_GPWLO_1: 670 insn = bfd_get_16 (abfd, address); 671 addend += (insn & 0xfffe); 672 673 saddend = (bfd_signed_vma) addend; 674 675 if (saddend > 0x7ffe || saddend < -0x8000) 676 return bfd_reloc_overflow; 677 678 if (addend & 1) 679 return bfd_reloc_dangerous; 680 681 insn = (addend &~ (bfd_vma) 1) | (insn & 1); 682 break; 683 684 case R_V850_TDA_6_8_OFFSET: 685 insn = bfd_get_16 (abfd, address); 686 addend += ((insn & 0x7e) << 1); 687 688 saddend = (bfd_signed_vma) addend; 689 690 if (saddend > 0xfc || saddend < 0) 691 return bfd_reloc_overflow; 692 693 if (addend & 3) 694 return bfd_reloc_dangerous; 695 696 insn &= 0xff81; 697 insn |= (addend >> 1); 698 break; 699 700 case R_V850_TDA_7_8_OFFSET: 701 insn = bfd_get_16 (abfd, address); 702 addend += ((insn & 0x7f) << 1); 703 704 saddend = (bfd_signed_vma) addend; 705 706 if (saddend > 0xfe || saddend < 0) 707 return bfd_reloc_overflow; 708 709 if (addend & 1) 710 return bfd_reloc_dangerous; 711 712 insn &= 0xff80; 713 insn |= (addend >> 1); 714 break; 715 716 case R_V850_TDA_7_7_OFFSET: 717 insn = bfd_get_16 (abfd, address); 718 addend += insn & 0x7f; 719 720 saddend = (bfd_signed_vma) addend; 721 722 if (saddend > 0x7f || saddend < 0) 723 return bfd_reloc_overflow; 724 725 insn &= 0xff80; 726 insn |= addend; 727 break; 728 729 case R_V850_TDA_4_5_OFFSET: 730 insn = bfd_get_16 (abfd, address); 731 addend += ((insn & 0xf) << 1); 732 733 saddend = (bfd_signed_vma) addend; 734 735 if (saddend > 0x1e || saddend < 0) 736 return bfd_reloc_overflow; 737 738 if (addend & 1) 739 return bfd_reloc_dangerous; 740 741 insn &= 0xfff0; 742 insn |= (addend >> 1); 743 break; 744 745 case R_V850_TDA_4_4_OFFSET: 746 insn = bfd_get_16 (abfd, address); 747 addend += insn & 0xf; 748 749 saddend = (bfd_signed_vma) addend; 750 751 if (saddend > 0xf || saddend < 0) 752 return bfd_reloc_overflow; 753 754 insn &= 0xfff0; 755 insn |= addend; 756 break; 757 758 case R_V810_WLO_1: 759 case R_V850_HWLO: 760 case R_V850_HWLO_1: 761 case R_V850_LO16_S1: 762 insn = bfd_get_16 (abfd, address); 763 result = insn & 0xfffe; 764 if (! v850_elf_perform_lo16_relocation (abfd, &result, addend)) 765 return bfd_reloc_overflow; 766 if (result & 1) 767 return bfd_reloc_overflow; 768 insn = (result & 0xfffe) 769 | (insn & ~0xfffe); 770 bfd_put_16 (abfd, insn, address); 771 return bfd_reloc_ok; 772 773 case R_V850_BLO: 774 case R_V850_LO16_SPLIT_OFFSET: 775 insn = bfd_get_32 (abfd, address); 776 result = ((insn & 0xfffe0000) >> 16) | ((insn & 0x20) >> 5); 777 if (! v850_elf_perform_lo16_relocation (abfd, &result, addend)) 778 return bfd_reloc_overflow; 779 insn = (((result << 16) & 0xfffe0000) 780 | ((result << 5) & 0x20) 781 | (insn & ~0xfffe0020)); 782 bfd_put_32 (abfd, insn, address); 783 return bfd_reloc_ok; 784 785 case R_V850_16_SPLIT_OFFSET: 786 case R_V850_SDA_16_16_SPLIT_OFFSET: 787 case R_V850_ZDA_16_16_SPLIT_OFFSET: 788 insn = bfd_get_32 (abfd, address); 789 addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5); 790 791 saddend = (bfd_signed_vma) addend; 792 793 if (saddend > 0x7fff || saddend < -0x8000) 794 return bfd_reloc_overflow; 795 796 insn &= 0x0001ffdf; 797 insn |= (addend & 1) << 5; 798 insn |= (addend &~ (bfd_vma) 1) << 16; 799 800 bfd_put_32 (abfd, (bfd_vma) insn, address); 801 return bfd_reloc_ok; 802 803 case R_V850_GNU_VTINHERIT: 804 case R_V850_GNU_VTENTRY: 805 return bfd_reloc_ok; 806 807 } 808 809 bfd_put_16 (abfd, (bfd_vma) insn, address); 810 return bfd_reloc_ok; 811} 812 813/* Insert the addend into the instruction. */ 814 815static bfd_reloc_status_type 816v850_elf_reloc (bfd *abfd ATTRIBUTE_UNUSED, 817 arelent *reloc, 818 asymbol *symbol, 819 void * data ATTRIBUTE_UNUSED, 820 asection *isection, 821 bfd *obfd, 822 char **err ATTRIBUTE_UNUSED) 823{ 824 long relocation; 825 826 /* If there is an output BFD, 827 and the symbol is not a section name (which is only defined at final link time), 828 and either we are not putting the addend into the instruction 829 or the addend is zero, so there is nothing to add into the instruction 830 then just fixup the address and return. */ 831 if (obfd != NULL 832 && (symbol->flags & BSF_SECTION_SYM) == 0 833 && (! reloc->howto->partial_inplace 834 || reloc->addend == 0)) 835 { 836 reloc->address += isection->output_offset; 837 return bfd_reloc_ok; 838 } 839 840 /* Catch relocs involving undefined symbols. */ 841 if (bfd_is_und_section (symbol->section) 842 && (symbol->flags & BSF_WEAK) == 0 843 && obfd == NULL) 844 return bfd_reloc_undefined; 845 846 /* We handle final linking of some relocs ourselves. */ 847 848 /* Is the address of the relocation really within the section? */ 849 if (reloc->address > bfd_get_section_limit (abfd, isection)) 850 return bfd_reloc_outofrange; 851 852 /* Work out which section the relocation is targeted at and the 853 initial relocation command value. */ 854 855 if (reloc->howto->pc_relative) 856 return bfd_reloc_ok; 857 858 /* Get symbol value. (Common symbols are special.) */ 859 if (bfd_is_com_section (symbol->section)) 860 relocation = 0; 861 else 862 relocation = symbol->value; 863 864 /* Convert input-section-relative symbol value to absolute + addend. */ 865 relocation += symbol->section->output_section->vma; 866 relocation += symbol->section->output_offset; 867 relocation += reloc->addend; 868 869 reloc->addend = relocation; 870 return bfd_reloc_ok; 871} 872 873/* This function is used for relocs which are only used 874 for relaxing, which the linker should otherwise ignore. */ 875 876static bfd_reloc_status_type 877v850_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, 878 arelent *reloc_entry, 879 asymbol *symbol ATTRIBUTE_UNUSED, 880 void * data ATTRIBUTE_UNUSED, 881 asection *input_section, 882 bfd *output_bfd, 883 char **error_message ATTRIBUTE_UNUSED) 884{ 885 if (output_bfd != NULL) 886 reloc_entry->address += input_section->output_offset; 887 888 return bfd_reloc_ok; 889} 890/* Note: It is REQUIRED that the 'type' value of each entry 891 in this array match the index of the entry in the array. 892 SeeAlso: RELOC_NUBMER in include/elf/v850.h. */ 893static reloc_howto_type v850_elf_howto_table[] = 894{ 895 /* This reloc does nothing. */ 896 HOWTO (R_V850_NONE, /* Type. */ 897 0, /* Rightshift. */ 898 3, /* Size (0 = byte, 1 = short, 2 = long). */ 899 0, /* Bitsize. */ 900 FALSE, /* PC_relative. */ 901 0, /* Bitpos. */ 902 complain_overflow_dont, /* Complain_on_overflow. */ 903 bfd_elf_generic_reloc, /* Special_function. */ 904 "R_V850_NONE", /* Name. */ 905 FALSE, /* Partial_inplace. */ 906 0, /* Src_mask. */ 907 0, /* Dst_mask. */ 908 FALSE), /* PCrel_offset. */ 909 910 /* A PC relative 9 bit branch. */ 911 HOWTO (R_V850_9_PCREL, /* Type. */ 912 0, /* Rightshift. */ 913 1, /* Size (0 = byte, 1 = short, 2 = long). */ 914 9, /* Bitsize. */ 915 TRUE, /* PC_relative. */ 916 0, /* Bitpos. */ 917 complain_overflow_bitfield, /* Complain_on_overflow. */ 918 v850_elf_reloc, /* Special_function. */ 919 "R_V850_9_PCREL", /* Name. */ 920 FALSE, /* Partial_inplace. */ 921 0x00ffffff, /* Src_mask. */ 922 0x00ffffff, /* Dst_mask. */ 923 TRUE), /* PCrel_offset. */ 924 925 /* A PC relative 22 bit branch. */ 926 HOWTO (R_V850_22_PCREL, /* Type. */ 927 0, /* Rightshift. */ 928 2, /* Size (0 = byte, 1 = short, 2 = long). */ 929 22, /* Bitsize. */ 930 TRUE, /* PC_relative. */ 931 0, /* Bitpos. */ 932 complain_overflow_signed, /* Complain_on_overflow. */ 933 v850_elf_reloc, /* Special_function. */ 934 "R_V850_22_PCREL", /* Name. */ 935 FALSE, /* Partial_inplace. */ 936 0x07ffff80, /* Src_mask. */ 937 0x07ffff80, /* Dst_mask. */ 938 TRUE), /* PCrel_offset. */ 939 940 /* High 16 bits of symbol value. */ 941 HOWTO (R_V850_HI16_S, /* Type. */ 942 0, /* Rightshift. */ 943 1, /* Size (0 = byte, 1 = short, 2 = long). */ 944 16, /* Bitsize. */ 945 FALSE, /* PC_relative. */ 946 0, /* Bitpos. */ 947 complain_overflow_dont, /* Complain_on_overflow. */ 948 v850_elf_reloc, /* Special_function. */ 949 "R_V850_HI16_S", /* Name. */ 950 FALSE, /* Partial_inplace. */ 951 0xffff, /* Src_mask. */ 952 0xffff, /* Dst_mask. */ 953 FALSE), /* PCrel_offset. */ 954 955 /* High 16 bits of symbol value. */ 956 HOWTO (R_V850_HI16, /* Type. */ 957 0, /* Rightshift. */ 958 1, /* Size (0 = byte, 1 = short, 2 = long). */ 959 16, /* Bitsize. */ 960 FALSE, /* PC_relative. */ 961 0, /* Bitpos. */ 962 complain_overflow_dont, /* Complain_on_overflow. */ 963 v850_elf_reloc, /* Special_function. */ 964 "R_V850_HI16", /* Name. */ 965 FALSE, /* Partial_inplace. */ 966 0xffff, /* Src_mask. */ 967 0xffff, /* Dst_mask. */ 968 FALSE), /* PCrel_offset. */ 969 970 /* Low 16 bits of symbol value. */ 971 HOWTO (R_V850_LO16, /* Type. */ 972 0, /* Rightshift. */ 973 1, /* Size (0 = byte, 1 = short, 2 = long). */ 974 16, /* Bitsize. */ 975 FALSE, /* PC_relative. */ 976 0, /* Bitpos. */ 977 complain_overflow_dont, /* Complain_on_overflow. */ 978 v850_elf_reloc, /* Special_function. */ 979 "R_V850_LO16", /* Name. */ 980 FALSE, /* Partial_inplace. */ 981 0xffff, /* Src_mask. */ 982 0xffff, /* Dst_mask. */ 983 FALSE), /* PCrel_offset. */ 984 985 /* Simple 32bit reloc. */ 986 HOWTO (R_V850_ABS32, /* Type. */ 987 0, /* Rightshift. */ 988 2, /* Size (0 = byte, 1 = short, 2 = long). */ 989 32, /* Bitsize. */ 990 FALSE, /* PC_relative. */ 991 0, /* Bitpos. */ 992 complain_overflow_dont, /* Complain_on_overflow. */ 993 v850_elf_reloc, /* Special_function. */ 994 "R_V850_ABS32", /* Name. */ 995 FALSE, /* Partial_inplace. */ 996 0xffffffff, /* Src_mask. */ 997 0xffffffff, /* Dst_mask. */ 998 FALSE), /* PCrel_offset. */ 999 1000 /* Simple 16bit reloc. */ 1001 HOWTO (R_V850_16, /* Type. */ 1002 0, /* Rightshift. */ 1003 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1004 16, /* Bitsize. */ 1005 FALSE, /* PC_relative. */ 1006 0, /* Bitpos. */ 1007 complain_overflow_dont, /* Complain_on_overflow. */ 1008 bfd_elf_generic_reloc, /* Special_function. */ 1009 "R_V850_16", /* Name. */ 1010 FALSE, /* Partial_inplace. */ 1011 0xffff, /* Src_mask. */ 1012 0xffff, /* Dst_mask. */ 1013 FALSE), /* PCrel_offset. */ 1014 1015 /* Simple 8bit reloc. */ 1016 HOWTO (R_V850_8, /* Type. */ 1017 0, /* Rightshift. */ 1018 0, /* Size (0 = byte, 1 = short, 2 = long). */ 1019 8, /* Bitsize. */ 1020 FALSE, /* PC_relative. */ 1021 0, /* Bitpos. */ 1022 complain_overflow_dont, /* Complain_on_overflow. */ 1023 bfd_elf_generic_reloc, /* Special_function. */ 1024 "R_V850_8", /* Name. */ 1025 FALSE, /* Partial_inplace. */ 1026 0xff, /* Src_mask. */ 1027 0xff, /* Dst_mask. */ 1028 FALSE), /* PCrel_offset. */ 1029 1030 /* 16 bit offset from the short data area pointer. */ 1031 HOWTO (R_V850_SDA_16_16_OFFSET, /* Type. */ 1032 0, /* Rightshift. */ 1033 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1034 16, /* Bitsize. */ 1035 FALSE, /* PC_relative. */ 1036 0, /* Bitpos. */ 1037 complain_overflow_dont, /* Complain_on_overflow. */ 1038 v850_elf_reloc, /* Special_function. */ 1039 "R_V850_SDA_16_16_OFFSET", /* Name. */ 1040 FALSE, /* Partial_inplace. */ 1041 0xffff, /* Src_mask. */ 1042 0xffff, /* Dst_mask. */ 1043 FALSE), /* PCrel_offset. */ 1044 1045 /* 15 bit offset from the short data area pointer. */ 1046 HOWTO (R_V850_SDA_15_16_OFFSET, /* Type. */ 1047 1, /* Rightshift. */ 1048 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1049 16, /* Bitsize. */ 1050 FALSE, /* PC_relative. */ 1051 1, /* Bitpos. */ 1052 complain_overflow_dont, /* Complain_on_overflow. */ 1053 v850_elf_reloc, /* Special_function. */ 1054 "R_V850_SDA_15_16_OFFSET", /* Name. */ 1055 FALSE, /* Partial_inplace. */ 1056 0xfffe, /* Src_mask. */ 1057 0xfffe, /* Dst_mask. */ 1058 FALSE), /* PCrel_offset. */ 1059 1060 /* 16 bit offset from the zero data area pointer. */ 1061 HOWTO (R_V850_ZDA_16_16_OFFSET, /* Type. */ 1062 0, /* Rightshift. */ 1063 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1064 16, /* Bitsize. */ 1065 FALSE, /* PC_relative. */ 1066 0, /* Bitpos. */ 1067 complain_overflow_dont, /* Complain_on_overflow. */ 1068 v850_elf_reloc, /* Special_function. */ 1069 "R_V850_ZDA_16_16_OFFSET", /* Name. */ 1070 FALSE, /* Partial_inplace. */ 1071 0xffff, /* Src_mask. */ 1072 0xffff, /* Dst_mask. */ 1073 FALSE), /* PCrel_offset. */ 1074 1075 /* 15 bit offset from the zero data area pointer. */ 1076 HOWTO (R_V850_ZDA_15_16_OFFSET, /* Type. */ 1077 1, /* Rightshift. */ 1078 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1079 16, /* Bitsize. */ 1080 FALSE, /* PC_relative. */ 1081 1, /* Bitpos. */ 1082 complain_overflow_dont, /* Complain_on_overflow. */ 1083 v850_elf_reloc, /* Special_function. */ 1084 "R_V850_ZDA_15_16_OFFSET", /* Name. */ 1085 FALSE, /* Partial_inplace. */ 1086 0xfffe, /* Src_mask. */ 1087 0xfffe, /* Dst_mask. */ 1088 FALSE), /* PCrel_offset. */ 1089 1090 /* 6 bit offset from the tiny data area pointer. */ 1091 HOWTO (R_V850_TDA_6_8_OFFSET, /* Type. */ 1092 2, /* Rightshift. */ 1093 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1094 8, /* Bitsize. */ 1095 FALSE, /* PC_relative. */ 1096 1, /* Bitpos. */ 1097 complain_overflow_dont, /* Complain_on_overflow. */ 1098 v850_elf_reloc, /* Special_function. */ 1099 "R_V850_TDA_6_8_OFFSET", /* Name. */ 1100 FALSE, /* Partial_inplace. */ 1101 0x7e, /* Src_mask. */ 1102 0x7e, /* Dst_mask. */ 1103 FALSE), /* PCrel_offset. */ 1104 1105 /* 8 bit offset from the tiny data area pointer. */ 1106 HOWTO (R_V850_TDA_7_8_OFFSET, /* Type. */ 1107 1, /* Rightshift. */ 1108 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1109 8, /* Bitsize. */ 1110 FALSE, /* PC_relative. */ 1111 0, /* Bitpos. */ 1112 complain_overflow_dont, /* Complain_on_overflow. */ 1113 v850_elf_reloc, /* Special_function. */ 1114 "R_V850_TDA_7_8_OFFSET", /* Name. */ 1115 FALSE, /* Partial_inplace. */ 1116 0x7f, /* Src_mask. */ 1117 0x7f, /* Dst_mask. */ 1118 FALSE), /* PCrel_offset. */ 1119 1120 /* 7 bit offset from the tiny data area pointer. */ 1121 HOWTO (R_V850_TDA_7_7_OFFSET, /* Type. */ 1122 0, /* Rightshift. */ 1123 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1124 7, /* Bitsize. */ 1125 FALSE, /* PC_relative. */ 1126 0, /* Bitpos. */ 1127 complain_overflow_dont, /* Complain_on_overflow. */ 1128 v850_elf_reloc, /* Special_function. */ 1129 "R_V850_TDA_7_7_OFFSET", /* Name. */ 1130 FALSE, /* Partial_inplace. */ 1131 0x7f, /* Src_mask. */ 1132 0x7f, /* Dst_mask. */ 1133 FALSE), /* PCrel_offset. */ 1134 1135 /* 16 bit offset from the tiny data area pointer! */ 1136 HOWTO (R_V850_TDA_16_16_OFFSET, /* Type. */ 1137 0, /* Rightshift. */ 1138 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1139 16, /* Bitsize. */ 1140 FALSE, /* PC_relative. */ 1141 0, /* Bitpos. */ 1142 complain_overflow_dont, /* Complain_on_overflow. */ 1143 v850_elf_reloc, /* Special_function. */ 1144 "R_V850_TDA_16_16_OFFSET", /* Name. */ 1145 FALSE, /* Partial_inplace. */ 1146 0xffff, /* Src_mask. */ 1147 0xfff, /* Dst_mask. */ 1148 FALSE), /* PCrel_offset. */ 1149 1150 /* 5 bit offset from the tiny data area pointer. */ 1151 HOWTO (R_V850_TDA_4_5_OFFSET, /* Type. */ 1152 1, /* Rightshift. */ 1153 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1154 5, /* Bitsize. */ 1155 FALSE, /* PC_relative. */ 1156 0, /* Bitpos. */ 1157 complain_overflow_dont, /* Complain_on_overflow. */ 1158 v850_elf_reloc, /* Special_function. */ 1159 "R_V850_TDA_4_5_OFFSET", /* Name. */ 1160 FALSE, /* Partial_inplace. */ 1161 0x0f, /* Src_mask. */ 1162 0x0f, /* Dst_mask. */ 1163 FALSE), /* PCrel_offset. */ 1164 1165 /* 4 bit offset from the tiny data area pointer. */ 1166 HOWTO (R_V850_TDA_4_4_OFFSET, /* Type. */ 1167 0, /* Rightshift. */ 1168 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1169 4, /* Bitsize. */ 1170 FALSE, /* PC_relative. */ 1171 0, /* Bitpos. */ 1172 complain_overflow_dont, /* Complain_on_overflow. */ 1173 v850_elf_reloc, /* Special_function. */ 1174 "R_V850_TDA_4_4_OFFSET", /* Name. */ 1175 FALSE, /* Partial_inplace. */ 1176 0x0f, /* Src_mask. */ 1177 0x0f, /* Dst_mask. */ 1178 FALSE), /* PCrel_offset. */ 1179 1180 /* 16 bit offset from the short data area pointer. */ 1181 HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* Type. */ 1182 0, /* Rightshift. */ 1183 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1184 16, /* Bitsize. */ 1185 FALSE, /* PC_relative. */ 1186 0, /* Bitpos. */ 1187 complain_overflow_dont, /* Complain_on_overflow. */ 1188 v850_elf_reloc, /* Special_function. */ 1189 "R_V850_SDA_16_16_SPLIT_OFFSET",/* Name. */ 1190 FALSE, /* Partial_inplace. */ 1191 0xfffe0020, /* Src_mask. */ 1192 0xfffe0020, /* Dst_mask. */ 1193 FALSE), /* PCrel_offset. */ 1194 1195 /* 16 bit offset from the zero data area pointer. */ 1196 HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* Type. */ 1197 0, /* Rightshift. */ 1198 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1199 16, /* Bitsize. */ 1200 FALSE, /* PC_relative. */ 1201 0, /* Bitpos. */ 1202 complain_overflow_dont, /* Complain_on_overflow. */ 1203 v850_elf_reloc, /* Special_function. */ 1204 "R_V850_ZDA_16_16_SPLIT_OFFSET",/* Name. */ 1205 FALSE, /* Partial_inplace. */ 1206 0xfffe0020, /* Src_mask. */ 1207 0xfffe0020, /* Dst_mask. */ 1208 FALSE), /* PCrel_offset. */ 1209 1210 /* 6 bit offset from the call table base pointer. */ 1211 HOWTO (R_V850_CALLT_6_7_OFFSET, /* Type. */ 1212 0, /* Rightshift. */ 1213 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1214 7, /* Bitsize. */ 1215 FALSE, /* PC_relative. */ 1216 0, /* Bitpos. */ 1217 complain_overflow_dont, /* Complain_on_overflow. */ 1218 v850_elf_reloc, /* Special_function. */ 1219 "R_V850_CALLT_6_7_OFFSET", /* Name. */ 1220 FALSE, /* Partial_inplace. */ 1221 0x3f, /* Src_mask. */ 1222 0x3f, /* Dst_mask. */ 1223 FALSE), /* PCrel_offset. */ 1224 1225 /* 16 bit offset from the call table base pointer. */ 1226 HOWTO (R_V850_CALLT_16_16_OFFSET, /* Type. */ 1227 0, /* Rightshift. */ 1228 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1229 16, /* Bitsize. */ 1230 FALSE, /* PC_relative. */ 1231 0, /* Bitpos. */ 1232 complain_overflow_dont, /* Complain_on_overflow. */ 1233 v850_elf_reloc, /* Special_function. */ 1234 "R_V850_CALLT_16_16_OFFSET", /* Name. */ 1235 FALSE, /* Partial_inplace. */ 1236 0xffff, /* Src_mask. */ 1237 0xffff, /* Dst_mask. */ 1238 FALSE), /* PCrel_offset. */ 1239 1240 1241 /* GNU extension to record C++ vtable hierarchy */ 1242 HOWTO (R_V850_GNU_VTINHERIT, /* Type. */ 1243 0, /* Rightshift. */ 1244 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1245 0, /* Bitsize. */ 1246 FALSE, /* PC_relative. */ 1247 0, /* Bitpos. */ 1248 complain_overflow_dont, /* Complain_on_overflow. */ 1249 NULL, /* Special_function. */ 1250 "R_V850_GNU_VTINHERIT", /* Name. */ 1251 FALSE, /* Partial_inplace. */ 1252 0, /* Src_mask. */ 1253 0, /* Dst_mask. */ 1254 FALSE), /* PCrel_offset. */ 1255 1256 /* GNU extension to record C++ vtable member usage. */ 1257 HOWTO (R_V850_GNU_VTENTRY, /* Type. */ 1258 0, /* Rightshift. */ 1259 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1260 0, /* Bitsize. */ 1261 FALSE, /* PC_relative. */ 1262 0, /* Bitpos. */ 1263 complain_overflow_dont, /* Complain_on_overflow. */ 1264 _bfd_elf_rel_vtable_reloc_fn, /* Special_function. */ 1265 "R_V850_GNU_VTENTRY", /* Name. */ 1266 FALSE, /* Partial_inplace. */ 1267 0, /* Src_mask. */ 1268 0, /* Dst_mask. */ 1269 FALSE), /* PCrel_offset. */ 1270 1271 /* Indicates a .longcall pseudo-op. The compiler will generate a .longcall 1272 pseudo-op when it finds a function call which can be relaxed. */ 1273 HOWTO (R_V850_LONGCALL, /* Type. */ 1274 0, /* Rightshift. */ 1275 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1276 32, /* Bitsize. */ 1277 TRUE, /* PC_relative. */ 1278 0, /* Bitpos. */ 1279 complain_overflow_signed, /* Complain_on_overflow. */ 1280 v850_elf_ignore_reloc, /* Special_function. */ 1281 "R_V850_LONGCALL", /* Name. */ 1282 FALSE, /* Partial_inplace. */ 1283 0, /* Src_mask. */ 1284 0, /* Dst_mask. */ 1285 TRUE), /* PCrel_offset. */ 1286 1287 /* Indicates a .longjump pseudo-op. The compiler will generate a 1288 .longjump pseudo-op when it finds a branch which can be relaxed. */ 1289 HOWTO (R_V850_LONGJUMP, /* Type. */ 1290 0, /* Rightshift. */ 1291 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1292 32, /* Bitsize. */ 1293 TRUE, /* PC_relative. */ 1294 0, /* Bitpos. */ 1295 complain_overflow_signed, /* Complain_on_overflow. */ 1296 v850_elf_ignore_reloc, /* Special_function. */ 1297 "R_V850_LONGJUMP", /* Name. */ 1298 FALSE, /* Partial_inplace. */ 1299 0, /* Src_mask. */ 1300 0, /* Dst_mask. */ 1301 TRUE), /* PCrel_offset. */ 1302 1303 HOWTO (R_V850_ALIGN, /* Type. */ 1304 0, /* Rightshift. */ 1305 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1306 0, /* Bitsize. */ 1307 FALSE, /* PC_relative. */ 1308 0, /* Bitpos. */ 1309 complain_overflow_unsigned, /* Complain_on_overflow. */ 1310 v850_elf_ignore_reloc, /* Special_function. */ 1311 "R_V850_ALIGN", /* Name. */ 1312 FALSE, /* Partial_inplace. */ 1313 0, /* Src_mask. */ 1314 0, /* Dst_mask. */ 1315 TRUE), /* PCrel_offset. */ 1316 1317 /* Simple pc-relative 32bit reloc. */ 1318 HOWTO (R_V850_REL32, /* Type. */ 1319 0, /* Rightshift. */ 1320 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1321 32, /* Bitsize. */ 1322 TRUE, /* PC_relative. */ 1323 0, /* Bitpos. */ 1324 complain_overflow_dont, /* Complain_on_overflow. */ 1325 v850_elf_reloc, /* Special_function. */ 1326 "R_V850_REL32", /* Name. */ 1327 FALSE, /* Partial_inplace. */ 1328 0xffffffff, /* Src_mask. */ 1329 0xffffffff, /* Dst_mask. */ 1330 FALSE), /* PCrel_offset. */ 1331 1332 /* An ld.bu version of R_V850_LO16. */ 1333 HOWTO (R_V850_LO16_SPLIT_OFFSET, /* Type. */ 1334 0, /* Rightshift. */ 1335 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1336 16, /* Bitsize. */ 1337 FALSE, /* PC_relative. */ 1338 0, /* Bitpos. */ 1339 complain_overflow_dont, /* Complain_on_overflow. */ 1340 v850_elf_reloc, /* Special_function. */ 1341 "R_V850_LO16_SPLIT_OFFSET", /* Name. */ 1342 FALSE, /* Partial_inplace. */ 1343 0xfffe0020, /* Src_mask. */ 1344 0xfffe0020, /* Dst_mask. */ 1345 FALSE), /* PCrel_offset. */ 1346 1347 /* A unsigned PC relative 16 bit loop. */ 1348 HOWTO (R_V850_16_PCREL, /* Type. */ 1349 0, /* Rightshift. */ 1350 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1351 16, /* Bitsize. */ 1352 TRUE, /* PC_relative. */ 1353 0, /* Bitpos. */ 1354 complain_overflow_bitfield, /* Complain_on_overflow. */ 1355 v850_elf_reloc, /* Special_function. */ 1356 "R_V850_16_PCREL", /* Name. */ 1357 FALSE, /* Partial_inplace. */ 1358 0xfffe, /* Src_mask. */ 1359 0xfffe, /* Dst_mask. */ 1360 TRUE), /* PCrel_offset. */ 1361 1362 /* A PC relative 17 bit branch. */ 1363 HOWTO (R_V850_17_PCREL, /* Type. */ 1364 0, /* Rightshift. */ 1365 2, /* Size (0 = byte, 1 = short, 2 = long). */ 1366 17, /* Bitsize. */ 1367 TRUE, /* PC_relative. */ 1368 0, /* Bitpos. */ 1369 complain_overflow_bitfield, /* Complain_on_overflow. */ 1370 v850_elf_reloc, /* Special_function. */ 1371 "R_V850_17_PCREL", /* Name. */ 1372 FALSE, /* Partial_inplace. */ 1373 0x0010fffe, /* Src_mask. */ 1374 0x0010fffe, /* Dst_mask. */ 1375 TRUE), /* PCrel_offset. */ 1376 1377 /* A 23bit offset ld/st. */ 1378 HOWTO (R_V850_23, /* type. */ 1379 0, /* rightshift. */ 1380 2, /* size (0 = byte, 1 = short, 2 = long). */ 1381 23, /* bitsize. */ 1382 FALSE, /* pc_relative. */ 1383 0, /* bitpos. */ 1384 complain_overflow_dont, /* complain_on_overflow. */ 1385 v850_elf_reloc, /* special_function. */ 1386 "R_V850_23", /* name. */ 1387 FALSE, /* partial_inplace. */ 1388 0xffff07f0, /* src_mask. */ 1389 0xffff07f0, /* dst_mask. */ 1390 FALSE), /* pcrel_offset. */ 1391 1392 /* A PC relative 32 bit branch. */ 1393 HOWTO (R_V850_32_PCREL, /* type. */ 1394 1, /* rightshift. */ 1395 2, /* size (0 = byte, 1 = short, 2 = long). */ 1396 32, /* bitsize. */ 1397 TRUE, /* pc_relative. */ 1398 1, /* bitpos. */ 1399 complain_overflow_signed, /* complain_on_overflow. */ 1400 v850_elf_reloc, /* special_function. */ 1401 "R_V850_32_PCREL", /* name. */ 1402 FALSE, /* partial_inplace. */ 1403 0xfffffffe, /* src_mask. */ 1404 0xfffffffe, /* dst_mask. */ 1405 TRUE), /* pcrel_offset. */ 1406 1407 /* A absolute 32 bit branch. */ 1408 HOWTO (R_V850_32_ABS, /* type. */ 1409 1, /* rightshift. */ 1410 2, /* size (0 = byte, 1 = short, 2 = long). */ 1411 32, /* bitsize. */ 1412 TRUE, /* pc_relative. */ 1413 1, /* bitpos. */ 1414 complain_overflow_signed, /* complain_on_overflow. */ 1415 v850_elf_reloc, /* special_function. */ 1416 "R_V850_32_ABS", /* name. */ 1417 FALSE, /* partial_inplace. */ 1418 0xfffffffe, /* src_mask. */ 1419 0xfffffffe, /* dst_mask. */ 1420 FALSE), /* pcrel_offset. */ 1421 1422 /* High 16 bits of symbol value. */ 1423 HOWTO (R_V850_HI16, /* Type. */ 1424 0, /* Rightshift. */ 1425 1, /* Size (0 = byte, 1 = short, 2 = long). */ 1426 16, /* Bitsize. */ 1427 FALSE, /* PC_relative. */ 1428 0, /* Bitpos. */ 1429 complain_overflow_dont, /* Complain_on_overflow. */ 1430 v850_elf_reloc, /* Special_function. */ 1431 "R_V850_HI16", /* Name. */ 1432 FALSE, /* Partial_inplace. */ 1433 0xffff, /* Src_mask. */ 1434 0xffff, /* Dst_mask. */ 1435 FALSE), /* PCrel_offset. */ 1436 1437 /* Low 16 bits of symbol value. */ 1438 HOWTO (R_V850_16_S1, /* type. */ 1439 1, /* rightshift. */ 1440 1, /* size (0 = byte, 1 = short, 2 = long). */ 1441 16, /* bitsize. */ 1442 FALSE, /* pc_relative. */ 1443 1, /* bitpos. */ 1444 complain_overflow_dont, /* complain_on_overflow. */ 1445 v850_elf_reloc, /* special_function. */ 1446 "R_V850_16_S1", /* name. */ 1447 FALSE, /* partial_inplace. */ 1448 0xfffe, /* src_mask. */ 1449 0xfffe, /* dst_mask. */ 1450 FALSE), /* pcrel_offset. */ 1451 1452 /* Low 16 bits of symbol value. */ 1453 HOWTO (R_V850_LO16_S1, /* type. */ 1454 1, /* rightshift. */ 1455 1, /* size (0 = byte, 1 = short, 2 = long). */ 1456 16, /* bitsize. */ 1457 FALSE, /* pc_relative. */ 1458 1, /* bitpos. */ 1459 complain_overflow_dont, /* complain_on_overflow. */ 1460 v850_elf_reloc, /* special_function. */ 1461 "R_V850_LO16_S1", /* name. */ 1462 FALSE, /* partial_inplace. */ 1463 0xfffe, /* src_mask. */ 1464 0xfffe, /* dst_mask. */ 1465 FALSE), /* pcrel_offset. */ 1466 1467 /* 16 bit offset from the call table base pointer. */ 1468 HOWTO (R_V850_CALLT_15_16_OFFSET, /* type. */ 1469 1, /* rightshift. */ 1470 1, /* size (0 = byte, 1 = short, 2 = long). */ 1471 16, /* bitsize. */ 1472 FALSE, /* pc_relative. */ 1473 1, /* bitpos. */ 1474 complain_overflow_dont, /* complain_on_overflow. */ 1475 v850_elf_reloc, /* special_function. */ 1476 "R_V850_CALLT_15_16_OFFSET", /* name. */ 1477 FALSE, /* partial_inplace. */ 1478 0xfffe, /* src_mask. */ 1479 0xfffe, /* dst_mask. */ 1480 FALSE), /* pcrel_offset. */ 1481 1482 /* Like R_V850_32 PCREL, but referring to the GOT table entry for 1483 the symbol. */ 1484 HOWTO (R_V850_32_GOTPCREL, /* type. */ 1485 0, /* rightshift. */ 1486 2, /* size (0 = byte, 1 = short, 2 = long). */ 1487 32, /* bitsize. */ 1488 TRUE, /* pc_relative. */ 1489 0, /* bitpos. */ 1490 complain_overflow_unsigned, /* complain_on_overflow. */ 1491 v850_elf_reloc, /* special_function. */ 1492 "R_V850_32_GOTPCREL", /* name. */ 1493 FALSE, /* partial_inplace. */ 1494 0xffffffff, /* src_mask. */ 1495 0xffffffff, /* dst_mask. */ 1496 TRUE), /* pcrel_offset. */ 1497 1498 /* Like R_V850_SDA_, but referring to the GOT table entry for 1499 the symbol. */ 1500 HOWTO (R_V850_16_GOT, /* type. */ 1501 0, /* rightshift. */ 1502 2, /* size (0 = byte, 1 = short, 2 = long). */ 1503 16, /* bitsize. */ 1504 FALSE, /* pc_relative. */ 1505 0, /* bitpos. */ 1506 complain_overflow_unsigned, /* complain_on_overflow. */ 1507 bfd_elf_generic_reloc, /* special_function. */ 1508 "R_V850_16_GOT", /* name. */ 1509 FALSE, /* partial_inplace. */ 1510 0xffff, /* src_mask. */ 1511 0xffff, /* dst_mask. */ 1512 FALSE), /* pcrel_offset. */ 1513 1514 HOWTO (R_V850_32_GOT, /* type. */ 1515 0, /* rightshift. */ 1516 2, /* size (0 = byte, 1 = short, 2 = long). */ 1517 32, /* bitsize. */ 1518 FALSE, /* pc_relative. */ 1519 0, /* bitpos. */ 1520 complain_overflow_unsigned, /* complain_on_overflow. */ 1521 bfd_elf_generic_reloc, /* special_function. */ 1522 "R_V850_32_GOT", /* name. */ 1523 FALSE, /* partial_inplace. */ 1524 0xffffffff, /* src_mask. */ 1525 0xffffffff, /* dst_mask. */ 1526 FALSE), /* pcrel_offset. */ 1527 1528 /* Like R_V850_22_PCREL, but referring to the procedure linkage table 1529 entry for the symbol. */ 1530 HOWTO (R_V850_22_PLT, /* type. */ 1531 1, /* rightshift. */ 1532 2, /* size (0 = byte, 1 = short, 2 = long). */ 1533 22, /* bitsize. */ 1534 TRUE, /* pc_relative. */ 1535 7, /* bitpos. */ 1536 complain_overflow_signed, /* complain_on_overflow. */ 1537 bfd_elf_generic_reloc, /* special_function. */ 1538 "R_V850_22_PLT", /* name. */ 1539 FALSE, /* partial_inplace. */ 1540 0x07ffff80, /* src_mask. */ 1541 0x07ffff80, /* dst_mask. */ 1542 TRUE), /* pcrel_offset. */ 1543 1544 HOWTO (R_V850_32_PLT, /* type. */ 1545 1, /* rightshift. */ 1546 2, /* size (0 = byte, 1 = short, 2 = long). */ 1547 32, /* bitsize. */ 1548 TRUE, /* pc_relative. */ 1549 1, /* bitpos. */ 1550 complain_overflow_signed, /* complain_on_overflow. */ 1551 bfd_elf_generic_reloc, /* special_function. */ 1552 "R_V850_32_PLT", /* name. */ 1553 FALSE, /* partial_inplace. */ 1554 0xffffffff, /* src_mask. */ 1555 0xffffffff, /* dst_mask. */ 1556 TRUE), /* pcrel_offset. */ 1557 1558 /* This is used only by the dynamic linker. The symbol should exist 1559 both in the object being run and in some shared library. The 1560 dynamic linker copies the data addressed by the symbol from the 1561 shared library into the object, because the object being 1562 run has to have the data at some particular address. */ 1563 HOWTO (R_V850_COPY, /* type. */ 1564 0, /* rightshift. */ 1565 2, /* size (0 = byte, 1 = short, 2 = long). */ 1566 32, /* bitsize. */ 1567 FALSE, /* pc_relative. */ 1568 0, /* bitpos. */ 1569 complain_overflow_bitfield, /* complain_on_overflow. */ 1570 bfd_elf_generic_reloc, /* special_function. */ 1571 "R_V850_COPY", /* name. */ 1572 FALSE, /* partial_inplace. */ 1573 0xffffffff, /* src_mask. */ 1574 0xffffffff, /* dst_mask. */ 1575 FALSE), /* pcrel_offset. */ 1576 1577 /* Like R_M32R_24, but used when setting global offset table 1578 entries. */ 1579 HOWTO (R_V850_GLOB_DAT, /* type. */ 1580 0, /* rightshift. */ 1581 2, /* size (0 = byte, 1 = short, 2 = long) */ 1582 32, /* bitsize. */ 1583 FALSE, /* pc_relative. */ 1584 0, /* bitpos. */ 1585 complain_overflow_bitfield, /* complain_on_overflow. */ 1586 bfd_elf_generic_reloc, /* special_function. */ 1587 "R_V850_GLOB_DAT", /* name. */ 1588 FALSE, /* partial_inplace. */ 1589 0xffffffff, /* src_mask. */ 1590 0xffffffff, /* dst_mask. */ 1591 FALSE), /* pcrel_offset. */ 1592 1593 /* Marks a procedure linkage table entry for a symbol. */ 1594 HOWTO (R_V850_JMP_SLOT, /* type. */ 1595 0, /* rightshift. */ 1596 2, /* size (0 = byte, 1 = short, 2 = long) */ 1597 32, /* bitsize. */ 1598 FALSE, /* pc_relative. */ 1599 0, /* bitpos. */ 1600 complain_overflow_bitfield, /* complain_on_overflow. */ 1601 bfd_elf_generic_reloc, /* special_function. */ 1602 "R_V850_JMP_SLOT", /* name. */ 1603 FALSE, /* partial_inplace. */ 1604 0xffffffff, /* src_mask. */ 1605 0xffffffff, /* dst_mask. */ 1606 FALSE), /* pcrel_offset. */ 1607 1608 /* Used only by the dynamic linker. When the object is run, this 1609 longword is set to the load address of the object, plus the 1610 addend. */ 1611 HOWTO (R_V850_RELATIVE, /* type. */ 1612 0, /* rightshift. */ 1613 2, /* size (0 = byte, 1 = short, 2 = long) */ 1614 32, /* bitsize. */ 1615 FALSE, /* pc_relative. */ 1616 0, /* bitpos. */ 1617 complain_overflow_bitfield, /* complain_on_overflow. */ 1618 bfd_elf_generic_reloc, /* special_function. */ 1619 "R_V850_RELATIVE", /* name. */ 1620 FALSE, /* partial_inplace. */ 1621 0xffffffff, /* src_mask. */ 1622 0xffffffff, /* dst_mask. */ 1623 FALSE), /* pcrel_offset. */ 1624 1625 HOWTO (R_V850_16_GOTOFF, /* type. */ 1626 0, /* rightshift. */ 1627 2, /* size (0 = byte, 1 = short, 2 = long) */ 1628 16, /* bitsize. */ 1629 FALSE, /* pc_relative. */ 1630 0, /* bitpos. */ 1631 complain_overflow_bitfield, /* complain_on_overflow. */ 1632 bfd_elf_generic_reloc, /* special_function. */ 1633 "R_V850_16_GOTOFF", /* name. */ 1634 FALSE, /* partial_inplace. */ 1635 0xffff, /* src_mask. */ 1636 0xffff, /* dst_mask. */ 1637 FALSE), /* pcrel_offset. */ 1638 1639 HOWTO (R_V850_32_GOTOFF, /* type. */ 1640 0, /* rightshift. */ 1641 2, /* size (0 = byte, 1 = short, 2 = long) */ 1642 32, /* bitsize. */ 1643 FALSE, /* pc_relative. */ 1644 0, /* bitpos. */ 1645 complain_overflow_bitfield, /* complain_on_overflow. */ 1646 bfd_elf_generic_reloc, /* special_function. */ 1647 "R_V850_32_GOTOFF", /* name. */ 1648 FALSE, /* partial_inplace. */ 1649 0xffffffff, /* src_mask. */ 1650 0xffffffff, /* dst_mask. */ 1651 FALSE), /* pcrel_offset. */ 1652 1653 HOWTO (R_V850_CODE, /* type. */ 1654 0, /* rightshift. */ 1655 1, /* size (0 = byte, 1 = short, 2 = long) */ 1656 0, /* bitsize. */ 1657 FALSE, /* pc_relative. */ 1658 0, /* bitpos. */ 1659 complain_overflow_unsigned, /* complain_on_overflow. */ 1660 v850_elf_ignore_reloc, /* special_function. */ 1661 "R_V850_CODE", /* name. */ 1662 FALSE, /* partial_inplace. */ 1663 0, /* src_mask. */ 1664 0, /* dst_mask. */ 1665 TRUE), /* pcrel_offset. */ 1666 1667 HOWTO (R_V850_DATA, /* type. */ 1668 0, /* rightshift. */ 1669 1, /* size (0 = byte, 1 = short, 2 = long) */ 1670 0, /* bitsize. */ 1671 FALSE, /* pc_relative. */ 1672 0, /* bitpos. */ 1673 complain_overflow_unsigned, /* complain_on_overflow. */ 1674 v850_elf_ignore_reloc, /* special_function. */ 1675 "R_V850_DATA", /* name. */ 1676 FALSE, /* partial_inplace. */ 1677 0, /* src_mask. */ 1678 0, /* dst_mask. */ 1679 TRUE), /* pcrel_offset. */ 1680 1681}; 1682 1683/* Map BFD reloc types to V850 ELF reloc types. */ 1684 1685struct v850_elf_reloc_map 1686{ 1687 /* BFD_RELOC_V850_CALLT_16_16_OFFSET is 258, which will not fix in an 1688 unsigned char. */ 1689 bfd_reloc_code_real_type bfd_reloc_val; 1690 unsigned int elf_reloc_val; 1691}; 1692 1693static const struct v850_elf_reloc_map v850_elf_reloc_map[] = 1694{ 1695 { BFD_RELOC_NONE, R_V850_NONE }, 1696 { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL }, 1697 { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL }, 1698 { BFD_RELOC_HI16_S, R_V850_HI16_S }, 1699 { BFD_RELOC_HI16, R_V850_HI16 }, 1700 { BFD_RELOC_LO16, R_V850_LO16 }, 1701 { BFD_RELOC_32, R_V850_ABS32 }, 1702 { BFD_RELOC_32_PCREL, R_V850_REL32 }, 1703 { BFD_RELOC_16, R_V850_16 }, 1704 { BFD_RELOC_8, R_V850_8 }, 1705 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET }, 1706 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET }, 1707 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET }, 1708 { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET }, 1709 { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET }, 1710 { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET }, 1711 { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET }, 1712 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET }, 1713 { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET }, 1714 { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET }, 1715 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_LO16_SPLIT_OFFSET }, 1716 { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET }, 1717 { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET }, 1718 { BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET }, 1719 { BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET }, 1720 { BFD_RELOC_VTABLE_INHERIT, R_V850_GNU_VTINHERIT }, 1721 { BFD_RELOC_VTABLE_ENTRY, R_V850_GNU_VTENTRY }, 1722 { BFD_RELOC_V850_LONGCALL, R_V850_LONGCALL }, 1723 { BFD_RELOC_V850_LONGJUMP, R_V850_LONGJUMP }, 1724 { BFD_RELOC_V850_ALIGN, R_V850_ALIGN }, 1725 { BFD_RELOC_V850_16_PCREL, R_V850_16_PCREL }, 1726 { BFD_RELOC_V850_17_PCREL, R_V850_17_PCREL }, 1727 { BFD_RELOC_V850_23, R_V850_23 }, 1728 { BFD_RELOC_V850_32_PCREL, R_V850_32_PCREL }, 1729 { BFD_RELOC_V850_32_ABS, R_V850_32_ABS }, 1730 { BFD_RELOC_V850_16_SPLIT_OFFSET, R_V850_HI16 }, 1731 { BFD_RELOC_V850_16_S1, R_V850_16_S1 }, 1732 { BFD_RELOC_V850_LO16_S1, R_V850_LO16_S1 }, 1733 { BFD_RELOC_V850_CALLT_15_16_OFFSET, R_V850_CALLT_15_16_OFFSET }, 1734 { BFD_RELOC_V850_32_GOTPCREL, R_V850_32_GOTPCREL }, 1735 { BFD_RELOC_V850_16_GOT, R_V850_16_GOT }, 1736 { BFD_RELOC_V850_32_GOT, R_V850_32_GOT }, 1737 { BFD_RELOC_V850_22_PLT_PCREL, R_V850_22_PLT }, 1738 { BFD_RELOC_V850_32_PLT_PCREL, R_V850_32_PLT }, 1739 { BFD_RELOC_V850_COPY, R_V850_COPY }, 1740 { BFD_RELOC_V850_GLOB_DAT, R_V850_GLOB_DAT }, 1741 { BFD_RELOC_V850_JMP_SLOT, R_V850_JMP_SLOT }, 1742 { BFD_RELOC_V850_RELATIVE, R_V850_RELATIVE }, 1743 { BFD_RELOC_V850_16_GOTOFF, R_V850_16_GOTOFF }, 1744 { BFD_RELOC_V850_32_GOTOFF, R_V850_32_GOTOFF }, 1745 { BFD_RELOC_V850_CODE, R_V850_CODE }, 1746 { BFD_RELOC_V850_DATA, R_V850_DATA }, 1747}; 1748 1749#define V800_RELOC(name,sz,bit,shift,complain,pcrel,resolver) \ 1750 HOWTO (name, shift, sz, bit, pcrel, 0, complain_overflow_ ## complain, \ 1751 bfd_elf_ ## resolver ## _reloc, #name, FALSE, 0, ~0, FALSE) 1752 1753#define V800_EMPTY(name) EMPTY_HOWTO (name - R_V810_NONE) 1754 1755#define bfd_elf_v850_reloc v850_elf_reloc 1756 1757/* Note: It is REQUIRED that the 'type' value (R_V810_...) of each entry 1758 in this array match the index of the entry in the array minus 0x30. 1759 See: bfd_elf_v850_relocate_section(), v800_elf_reloc_type_lookup() 1760 and v800_elf_info_to_howto(). */ 1761 1762static reloc_howto_type v800_elf_howto_table[] = 1763{ 1764 V800_RELOC (R_V810_NONE, 0, 0, 0, dont, FALSE, generic), /* Type = 0x30 */ 1765 V800_RELOC (R_V810_BYTE, 0, 8, 0, dont, FALSE, generic), 1766 V800_RELOC (R_V810_HWORD, 1, 16, 0, dont, FALSE, generic), 1767 V800_RELOC (R_V810_WORD, 2, 32, 0, dont, FALSE, generic), 1768 V800_RELOC (R_V810_WLO, 1, 16, 0, dont, FALSE, generic), 1769 V800_RELOC (R_V810_WHI, 1, 16, 0, dont, FALSE, generic), 1770 V800_RELOC (R_V810_WHI1, 1, 16, 0, dont, FALSE, generic), 1771 V800_RELOC (R_V810_GPBYTE, 0, 8, 0, dont, FALSE, v850), 1772 V800_RELOC (R_V810_GPHWORD, 1, 16, 0, dont, FALSE, v850), 1773 V800_RELOC (R_V810_GPWORD, 2, 32, 0, dont, FALSE, v850), 1774 V800_RELOC (R_V810_GPWLO, 1, 16, 0, dont, FALSE, v850), 1775 V800_RELOC (R_V810_GPWHI, 1, 16, 0, dont, FALSE, v850), 1776 V800_RELOC (R_V810_GPWHI1, 1, 16, 0, dont, FALSE, v850), 1777 V800_RELOC (R_V850_HWLO, 1, 16, 0, dont, FALSE, generic), 1778 V800_EMPTY (R_V810_reserved1), 1779 V800_RELOC (R_V850_EP7BIT, 0, 7, 0, unsigned, FALSE, v850), 1780 V800_RELOC (R_V850_EPHBYTE, 0, 8, 1, unsigned, FALSE, v850), 1781 V800_RELOC (R_V850_EPWBYTE, 0, 8, 2, unsigned, FALSE, v850), 1782 V800_RELOC (R_V850_REGHWLO, 1, 16, 0, dont, FALSE, v850), 1783 V800_EMPTY (R_V810_reserved2), 1784 V800_RELOC (R_V850_GPHWLO, 1, 16, 0, dont, FALSE, v850), 1785 V800_EMPTY (R_V810_reserved3), 1786 V800_RELOC (R_V850_PCR22, 2, 22, 0, signed, TRUE, generic), 1787 V800_RELOC (R_V850_BLO, 2, 24, 0, dont, FALSE, v850), 1788 V800_RELOC (R_V850_EP4BIT, 0, 4, 0, unsigned, FALSE, v850), 1789 V800_RELOC (R_V850_EP5BIT, 0, 5, 0, unsigned, FALSE, v850), 1790 V800_RELOC (R_V850_REGBLO, 2, 24, 0, dont, FALSE, v850), 1791 V800_RELOC (R_V850_GPBLO, 2, 24, 0, dont, FALSE, v850), 1792 V800_RELOC (R_V810_WLO_1, 1, 16, 0, dont, FALSE, v850), 1793 V800_RELOC (R_V810_GPWLO_1, 1, 16, 0, signed, FALSE, v850), 1794 V800_RELOC (R_V850_BLO_1, 2, 16, 0, signed, FALSE, v850), 1795 V800_RELOC (R_V850_HWLO_1, 1, 16, 0, signed, FALSE, v850), 1796 V800_EMPTY (R_V810_reserved4), 1797 V800_RELOC (R_V850_GPBLO_1, 2, 16, 1, signed, FALSE, v850), 1798 V800_RELOC (R_V850_GPHWLO_1, 1, 16, 1, signed, FALSE, v850), 1799 V800_EMPTY (R_V810_reserved5), 1800 V800_RELOC (R_V850_EPBLO, 2, 16, 1, signed, FALSE, v850), 1801 V800_RELOC (R_V850_EPHWLO, 1, 16, 1, signed, FALSE, v850), 1802 V800_EMPTY (R_V810_reserved6), 1803 V800_RELOC (R_V850_EPWLO_N, 1, 16, 1, signed, FALSE, v850), 1804 V800_RELOC (R_V850_PC32, 2, 32, 1, signed, TRUE, v850), 1805 V800_RELOC (R_V850_W23BIT, 2, 23, 1, signed, FALSE, v850), 1806 V800_RELOC (R_V850_GPW23BIT, 2, 23, 1, signed, FALSE, v850), 1807 V800_RELOC (R_V850_EPW23BIT, 2, 23, 1, signed, FALSE, v850), 1808 V800_RELOC (R_V850_B23BIT, 2, 23, 1, signed, FALSE, v850), 1809 V800_RELOC (R_V850_GPB23BIT, 2, 23, 1, signed, FALSE, v850), 1810 V800_RELOC (R_V850_EPB23BIT, 2, 23, 1, signed, FALSE, v850), 1811 V800_RELOC (R_V850_PC16U, 1, 16, 1, unsigned, TRUE, generic), 1812 V800_RELOC (R_V850_PC17, 2, 17, 1, signed, TRUE, generic), 1813 V800_RELOC (R_V850_DW8, 2, 8, 2, signed, FALSE, v850), 1814 V800_RELOC (R_V850_GPDW8, 2, 8, 2, signed, FALSE, v850), 1815 V800_RELOC (R_V850_EPDW8, 2, 8, 2, signed, FALSE, v850), 1816 V800_RELOC (R_V850_PC9, 1, 9, 3, signed, TRUE, v850), 1817 V800_RELOC (R_V810_REGBYTE, 0, 8, 0, dont, FALSE, v850), 1818 V800_RELOC (R_V810_REGHWORD, 1, 16, 0, dont, FALSE, v850), 1819 V800_RELOC (R_V810_REGWORD, 2, 32, 0, dont, FALSE, v850), 1820 V800_RELOC (R_V810_REGWLO, 1, 16, 0, dont, FALSE, v850), 1821 V800_RELOC (R_V810_REGWHI, 1, 16, 0, dont, FALSE, v850), 1822 V800_RELOC (R_V810_REGWHI1, 1, 16, 0, dont, FALSE, v850), 1823 V800_RELOC (R_V850_REGW23BIT, 2, 23, 1, signed, FALSE, v850), 1824 V800_RELOC (R_V850_REGB23BIT, 2, 23, 1, signed, FALSE, v850), 1825 V800_RELOC (R_V850_REGDW8, 2, 8, 2, signed, FALSE, v850), 1826 V800_RELOC (R_V810_EPBYTE, 0, 8, 0, dont, FALSE, v850), 1827 V800_RELOC (R_V810_EPHWORD, 1, 16, 0, dont, FALSE, v850), 1828 V800_RELOC (R_V810_EPWORD, 2, 32, 0, dont, FALSE, v850), 1829 V800_RELOC (R_V850_WLO23, 2, 32, 1, dont, FALSE, v850), 1830 V800_RELOC (R_V850_WORD_E, 2, 32, 1, dont, FALSE, v850), 1831 V800_RELOC (R_V850_REGWORD_E, 2, 32, 1, dont, FALSE, v850), 1832 V800_RELOC (R_V850_WORD, 2, 32, 0, dont, FALSE, v850), 1833 V800_RELOC (R_V850_GPWORD, 2, 32, 0, dont, FALSE, v850), 1834 V800_RELOC (R_V850_REGWORD, 2, 32, 0, dont, FALSE, v850), 1835 V800_RELOC (R_V850_EPWORD, 2, 32, 0, dont, FALSE, v850), 1836 V800_RELOC (R_V810_TPBYTE, 0, 8, 0, dont, FALSE, v850), 1837 V800_RELOC (R_V810_TPHWORD, 1, 16, 0, dont, FALSE, v850), 1838 V800_RELOC (R_V810_TPWORD, 2, 32, 0, dont, FALSE, v850), 1839 V800_RELOC (R_V810_TPWLO, 1, 16, 0, dont, FALSE, v850), 1840 V800_RELOC (R_V810_TPWHI, 1, 16, 0, dont, FALSE, v850), 1841 V800_RELOC (R_V810_TPWHI1, 1, 16, 0, dont, FALSE, v850), 1842 V800_RELOC (R_V850_TPHWLO, 1, 16, 1, dont, FALSE, v850), 1843 V800_RELOC (R_V850_TPBLO, 2, 24, 0, dont, FALSE, v850), 1844 V800_RELOC (R_V810_TPWLO_1, 1, 16, 0, signed, FALSE, v850), 1845 V800_RELOC (R_V850_TPBLO_1, 2, 16, 0, signed, FALSE, v850), 1846 V800_RELOC (R_V850_TPHWLO_1, 1, 16, 0, signed, FALSE, v850), 1847 V800_RELOC (R_V850_TP23BIT, 2, 23, 0, signed, FALSE, v850), 1848 V800_RELOC (R_V850_TPW23BIT, 2, 23, 0, signed, FALSE, v850), 1849 V800_RELOC (R_V850_TPDW8, 2, 8, 0, signed, FALSE, v850) 1850}; 1851 1852/* Map a bfd relocation into the appropriate howto structure. */ 1853 1854static reloc_howto_type * 1855v850_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, 1856 bfd_reloc_code_real_type code) 1857{ 1858 unsigned int i; 1859 1860 for (i = ARRAY_SIZE (v850_elf_reloc_map); i --;) 1861 if (v850_elf_reloc_map[i].bfd_reloc_val == code) 1862 { 1863 unsigned int elf_reloc_val = v850_elf_reloc_map[i].elf_reloc_val; 1864 1865 BFD_ASSERT (v850_elf_howto_table[elf_reloc_val].type == elf_reloc_val); 1866 1867 return v850_elf_howto_table + elf_reloc_val; 1868 } 1869 1870 return NULL; 1871} 1872 1873static reloc_howto_type * 1874v850_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, 1875 const char *r_name) 1876{ 1877 unsigned int i; 1878 1879 for (i = 0; 1880 i < sizeof (v850_elf_howto_table) / sizeof (v850_elf_howto_table[0]); 1881 i++) 1882 if (v850_elf_howto_table[i].name != NULL 1883 && strcasecmp (v850_elf_howto_table[i].name, r_name) == 0) 1884 return &v850_elf_howto_table[i]; 1885 1886 return NULL; 1887} 1888 1889/* Set the howto pointer for an V850 ELF reloc. */ 1890 1891static void 1892v850_elf_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, 1893 arelent *cache_ptr, 1894 Elf_Internal_Rela *dst) 1895{ 1896 unsigned int r_type; 1897 1898 r_type = ELF32_R_TYPE (dst->r_info); 1899 if (r_type >= (unsigned int) R_V850_max) 1900 { 1901 _bfd_error_handler (_("%B: invalid V850 reloc number: %d"), abfd, r_type); 1902 r_type = 0; 1903 } 1904 cache_ptr->howto = &v850_elf_howto_table[r_type]; 1905} 1906 1907/* Set the howto pointer for a V850 ELF reloc (type RELA). */ 1908 1909static void 1910v850_elf_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED, 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 _bfd_error_handler (_("%B: invalid V850 reloc number: %d"), abfd, r_type); 1920 r_type = 0; 1921 } 1922 cache_ptr->howto = &v850_elf_howto_table[r_type]; 1923} 1924 1925static bfd_boolean 1926v850_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name) 1927{ 1928 return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.')) 1929 || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_')); 1930} 1931 1932static bfd_boolean 1933v850_elf_is_target_special_symbol (bfd *abfd, asymbol *sym) 1934{ 1935 return v850_elf_is_local_label_name (abfd, sym->name); 1936} 1937 1938/* We overload some of the bfd_reloc error codes for own purposes. */ 1939#define bfd_reloc_gp_not_found bfd_reloc_other 1940#define bfd_reloc_ep_not_found bfd_reloc_continue 1941#define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1) 1942 1943/* Perform a relocation as part of a final link. */ 1944 1945static bfd_reloc_status_type 1946v850_elf_final_link_relocate (reloc_howto_type *howto, 1947 bfd *input_bfd, 1948 bfd *output_bfd ATTRIBUTE_UNUSED, 1949 asection *input_section, 1950 bfd_byte *contents, 1951 bfd_vma offset, 1952 bfd_vma value, 1953 bfd_vma addend, 1954 struct bfd_link_info *info, 1955 asection *sym_sec, 1956 int is_local ATTRIBUTE_UNUSED) 1957{ 1958 unsigned int r_type = howto->type; 1959 bfd_byte *hit_data = contents + offset; 1960 1961 /* Adjust the value according to the relocation. */ 1962 switch (r_type) 1963 { 1964 case R_V850_PC9: 1965 case R_V850_9_PCREL: 1966 value -= (input_section->output_section->vma 1967 + input_section->output_offset); 1968 value -= offset; 1969 break; 1970 1971 case R_V850_PC16U: 1972 case R_V850_16_PCREL: 1973 value -= (input_section->output_section->vma 1974 + input_section->output_offset 1975 + offset); 1976 1977 /* If the sign extension will corrupt the value then we have overflowed. */ 1978 if ((value & 0xffff0000) != 0xffff0000) 1979 return bfd_reloc_overflow; 1980 1981 break; 1982 1983 case R_V850_PC17: 1984 case R_V850_17_PCREL: 1985 value -= (input_section->output_section->vma 1986 + input_section->output_offset 1987 + offset); 1988 1989 /* If the sign extension will corrupt the value then we have overflowed. */ 1990 if (((value & 0xffff0000) != 0x0) && ((value & 0xffff0000) != 0xffff0000)) 1991 return bfd_reloc_overflow; 1992 1993 value = SEXT17 (value); 1994 break; 1995 1996 case R_V850_PCR22: 1997 case R_V850_22_PCREL: 1998 value -= (input_section->output_section->vma 1999 + input_section->output_offset 2000 + offset); 2001 2002 /* If the sign extension will corrupt the value then we have overflowed. */ 2003 if (((value & 0xffe00000) != 0x0) && ((value & 0xffe00000) != 0xffe00000)) 2004 return bfd_reloc_overflow; 2005 2006 /* Only the bottom 22 bits of the PC are valid. */ 2007 value = SEXT22 (value); 2008 break; 2009 2010 case R_V850_PC32: 2011 case R_V850_32_PCREL: 2012 value -= (input_section->output_section->vma 2013 + input_section->output_offset 2014 + offset); 2015 break; 2016 2017 case R_V850_32_ABS: 2018 case R_V850_23: 2019 case R_V850_HI16_S: 2020 case R_V850_HI16: 2021 case R_V850_LO16: 2022 case R_V850_LO16_S1: 2023 case R_V850_LO16_SPLIT_OFFSET: 2024 case R_V850_16: 2025 case R_V850_ABS32: 2026 case R_V850_8: 2027 case R_V810_BYTE: 2028 case R_V810_HWORD: 2029 case R_V810_WORD: 2030 case R_V810_WLO: 2031 case R_V810_WHI: 2032 case R_V810_WHI1: 2033 case R_V810_WLO_1: 2034 case R_V850_WLO23: 2035 case R_V850_BLO: 2036 break; 2037 2038 case R_V850_ZDA_15_16_OFFSET: 2039 case R_V850_ZDA_16_16_OFFSET: 2040 case R_V850_ZDA_16_16_SPLIT_OFFSET: 2041 if (sym_sec == NULL) 2042 return bfd_reloc_undefined; 2043 2044 value -= sym_sec->output_section->vma; 2045 break; 2046 2047 case R_V850_SDA_15_16_OFFSET: 2048 case R_V850_SDA_16_16_OFFSET: 2049 case R_V850_SDA_16_16_SPLIT_OFFSET: 2050 case R_V810_GPWLO_1: 2051 { 2052 unsigned long gp; 2053 struct bfd_link_hash_entry * h; 2054 2055 if (sym_sec == NULL) 2056 return bfd_reloc_undefined; 2057 2058 /* Get the value of __gp. */ 2059 h = bfd_link_hash_lookup (info->hash, "__gp", FALSE, FALSE, TRUE); 2060 if (h == NULL 2061 || h->type != bfd_link_hash_defined) 2062 return bfd_reloc_gp_not_found; 2063 2064 gp = (h->u.def.value 2065 + h->u.def.section->output_section->vma 2066 + h->u.def.section->output_offset); 2067 2068 value -= sym_sec->output_section->vma; 2069 value -= (gp - sym_sec->output_section->vma); 2070 } 2071 break; 2072 2073 case R_V850_TDA_4_4_OFFSET: 2074 case R_V850_TDA_4_5_OFFSET: 2075 case R_V850_TDA_7_7_OFFSET: 2076 case R_V850_TDA_7_8_OFFSET: 2077 case R_V850_TDA_6_8_OFFSET: 2078 case R_V850_TDA_16_16_OFFSET: 2079 { 2080 unsigned long ep; 2081 struct bfd_link_hash_entry * h; 2082 2083 /* Get the value of __ep. */ 2084 h = bfd_link_hash_lookup (info->hash, "__ep", FALSE, FALSE, TRUE); 2085 if (h == NULL 2086 || h->type != bfd_link_hash_defined) 2087 return bfd_reloc_ep_not_found; 2088 2089 ep = (h->u.def.value 2090 + h->u.def.section->output_section->vma 2091 + h->u.def.section->output_offset); 2092 2093 value -= ep; 2094 } 2095 break; 2096 2097 case R_V850_CALLT_6_7_OFFSET: 2098 { 2099 unsigned long ctbp; 2100 struct bfd_link_hash_entry * h; 2101 2102 /* Get the value of __ctbp. */ 2103 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE); 2104 if (h == NULL 2105 || h->type != bfd_link_hash_defined) 2106 return bfd_reloc_ctbp_not_found; 2107 2108 ctbp = (h->u.def.value 2109 + h->u.def.section->output_section->vma 2110 + h->u.def.section->output_offset); 2111 value -= ctbp; 2112 } 2113 break; 2114 2115 case R_V850_CALLT_15_16_OFFSET: 2116 case R_V850_CALLT_16_16_OFFSET: 2117 { 2118 unsigned long ctbp; 2119 struct bfd_link_hash_entry * h; 2120 2121 if (sym_sec == NULL) 2122 return bfd_reloc_undefined; 2123 2124 /* Get the value of __ctbp. */ 2125 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE); 2126 if (h == NULL 2127 || h->type != bfd_link_hash_defined) 2128 return bfd_reloc_ctbp_not_found; 2129 2130 ctbp = (h->u.def.value 2131 + h->u.def.section->output_section->vma 2132 + h->u.def.section->output_offset); 2133 2134 value -= sym_sec->output_section->vma; 2135 value -= (ctbp - sym_sec->output_section->vma); 2136 } 2137 break; 2138 2139 case R_V850_NONE: 2140 case R_V810_NONE: 2141 case R_V850_GNU_VTINHERIT: 2142 case R_V850_GNU_VTENTRY: 2143 case R_V850_LONGCALL: 2144 case R_V850_LONGJUMP: 2145 case R_V850_ALIGN: 2146 return bfd_reloc_ok; 2147 2148 default: 2149#ifdef DEBUG 2150 fprintf (stderr, "%B: reloc number %d not recognised\n", input_bfd, r_type); 2151#endif 2152 return bfd_reloc_notsupported; 2153 } 2154 2155 /* Perform the relocation. */ 2156 return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data); 2157} 2158 2159/* Relocate an V850 ELF section. */ 2160 2161static bfd_boolean 2162v850_elf_relocate_section (bfd *output_bfd, 2163 struct bfd_link_info *info, 2164 bfd *input_bfd, 2165 asection *input_section, 2166 bfd_byte *contents, 2167 Elf_Internal_Rela *relocs, 2168 Elf_Internal_Sym *local_syms, 2169 asection **local_sections) 2170{ 2171 Elf_Internal_Shdr *symtab_hdr; 2172 struct elf_link_hash_entry **sym_hashes; 2173 Elf_Internal_Rela *rel; 2174 Elf_Internal_Rela *relend; 2175 2176 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; 2177 sym_hashes = elf_sym_hashes (input_bfd); 2178 2179 /* Reset the list of remembered HI16S relocs to empty. */ 2180 free_hi16s = previous_hi16s; 2181 previous_hi16s = NULL; 2182 hi16s_counter = 0; 2183 2184 rel = relocs; 2185 relend = relocs + input_section->reloc_count; 2186 for (; rel < relend; rel++) 2187 { 2188 unsigned int r_type; 2189 reloc_howto_type *howto; 2190 unsigned long r_symndx; 2191 Elf_Internal_Sym *sym; 2192 asection *sec; 2193 struct elf_link_hash_entry *h; 2194 bfd_vma relocation; 2195 bfd_reloc_status_type r; 2196 2197 r_symndx = ELF32_R_SYM (rel->r_info); 2198 r_type = ELF32_R_TYPE (rel->r_info); 2199 2200 if (r_type == R_V850_GNU_VTENTRY 2201 || r_type == R_V850_GNU_VTINHERIT) 2202 continue; 2203 2204 if (bfd_get_arch (input_bfd) == bfd_arch_v850_rh850) 2205 howto = v800_elf_howto_table + (r_type - R_V810_NONE); 2206 else 2207 howto = v850_elf_howto_table + r_type; 2208 2209 BFD_ASSERT (r_type == howto->type); 2210 2211 h = NULL; 2212 sym = NULL; 2213 sec = NULL; 2214 if (r_symndx < symtab_hdr->sh_info) 2215 { 2216 sym = local_syms + r_symndx; 2217 sec = local_sections[r_symndx]; 2218 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); 2219 } 2220 else 2221 { 2222 bfd_boolean unresolved_reloc, warned, ignored; 2223 2224 /* Note - this check is delayed until now as it is possible and 2225 valid to have a file without any symbols but with relocs that 2226 can be processed. */ 2227 if (sym_hashes == NULL) 2228 { 2229 info->callbacks->warning 2230 (info, "no hash table available", 2231 NULL, input_bfd, input_section, (bfd_vma) 0); 2232 2233 return FALSE; 2234 } 2235 2236 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, 2237 r_symndx, symtab_hdr, sym_hashes, 2238 h, sec, relocation, 2239 unresolved_reloc, warned, ignored); 2240 } 2241 2242 if (sec != NULL && discarded_section (sec)) 2243 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, 2244 rel, 1, relend, howto, 0, contents); 2245 2246 if (bfd_link_relocatable (info)) 2247 continue; 2248 2249 /* FIXME: We should use the addend, but the COFF relocations don't. */ 2250 r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd, 2251 input_section, 2252 contents, rel->r_offset, 2253 relocation, rel->r_addend, 2254 info, sec, h == NULL); 2255 2256 if (r != bfd_reloc_ok) 2257 { 2258 const char * name; 2259 const char * msg = NULL; 2260 2261 if (h != NULL) 2262 name = h->root.root.string; 2263 else 2264 { 2265 name = (bfd_elf_string_from_elf_section 2266 (input_bfd, symtab_hdr->sh_link, sym->st_name)); 2267 if (name == NULL || *name == '\0') 2268 name = bfd_section_name (input_bfd, sec); 2269 } 2270 2271 switch ((int) r) 2272 { 2273 case bfd_reloc_overflow: 2274 if (! ((*info->callbacks->reloc_overflow) 2275 (info, (h ? &h->root : NULL), name, howto->name, 2276 (bfd_vma) 0, input_bfd, input_section, 2277 rel->r_offset))) 2278 return FALSE; 2279 break; 2280 2281 case bfd_reloc_undefined: 2282 if (! ((*info->callbacks->undefined_symbol) 2283 (info, name, input_bfd, input_section, 2284 rel->r_offset, TRUE))) 2285 return FALSE; 2286 break; 2287 2288 case bfd_reloc_outofrange: 2289 msg = _("internal error: out of range error"); 2290 goto common_error; 2291 2292 case bfd_reloc_notsupported: 2293 msg = _("internal error: unsupported relocation error"); 2294 goto common_error; 2295 2296 case bfd_reloc_dangerous: 2297 msg = _("internal error: dangerous relocation"); 2298 goto common_error; 2299 2300 case bfd_reloc_gp_not_found: 2301 msg = _("could not locate special linker symbol __gp"); 2302 goto common_error; 2303 2304 case bfd_reloc_ep_not_found: 2305 msg = _("could not locate special linker symbol __ep"); 2306 goto common_error; 2307 2308 case bfd_reloc_ctbp_not_found: 2309 msg = _("could not locate special linker symbol __ctbp"); 2310 goto common_error; 2311 2312 default: 2313 msg = _("internal error: unknown error"); 2314 /* fall through */ 2315 2316 common_error: 2317 if (!((*info->callbacks->warning) 2318 (info, msg, name, input_bfd, input_section, 2319 rel->r_offset))) 2320 return FALSE; 2321 break; 2322 } 2323 } 2324 } 2325 2326 return TRUE; 2327} 2328 2329static asection * 2330v850_elf_gc_mark_hook (asection *sec, 2331 struct bfd_link_info *info, 2332 Elf_Internal_Rela *rel, 2333 struct elf_link_hash_entry *h, 2334 Elf_Internal_Sym *sym) 2335{ 2336 if (h != NULL) 2337 switch (ELF32_R_TYPE (rel->r_info)) 2338 { 2339 case R_V850_GNU_VTINHERIT: 2340 case R_V850_GNU_VTENTRY: 2341 return NULL; 2342 } 2343 2344 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); 2345} 2346 2347static void 2348v850_set_note (bfd * abfd, asection * s, enum v850_notes note, unsigned int val) 2349{ 2350 bfd_byte * data = s->contents + ((note - 1) * SIZEOF_V850_NOTE); 2351 2352 bfd_put_32 (abfd, 4, data + 0); 2353 bfd_put_32 (abfd, 4, data + 4); 2354 bfd_put_32 (abfd, note, data + 8); 2355 memcpy (data + 12, V850_NOTE_NAME, 4); 2356 bfd_put_32 (abfd, val, data + 16); 2357} 2358 2359/* Create the note section if not already present. This is done early so 2360 that the linker maps the sections to the right place in the output. */ 2361 2362static asection * 2363v850_elf_make_note_section (bfd * abfd) 2364{ 2365 asection *s; 2366 bfd_byte *data; 2367 flagword flags; 2368 enum v850_notes id; 2369 2370 /* Make the note section. */ 2371 flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_MERGE; 2372 2373 s = bfd_make_section_anyway_with_flags (abfd, V850_NOTE_SECNAME, flags); 2374 if (s == NULL) 2375 return NULL; 2376 2377 if (!bfd_set_section_alignment (abfd, s, 2)) 2378 return NULL; 2379 2380 /* Allocate space for all known notes. */ 2381 if (!bfd_set_section_size (abfd, s, NUM_V850_NOTES * SIZEOF_V850_NOTE)) 2382 return NULL; 2383 2384 data = bfd_zalloc (abfd, NUM_V850_NOTES * SIZEOF_V850_NOTE); 2385 if (data == NULL) 2386 return NULL; 2387 2388 s->contents = data; 2389 2390 /* Provide default (= uninitilaised) values for all of the notes. */ 2391 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++) 2392 v850_set_note (abfd, s, id, 0); 2393 2394 return s; 2395} 2396 2397/* Create the note section if not already present. This is done early so 2398 that the linker maps the sections to the right place in the output. */ 2399 2400bfd_boolean 2401v850_elf_create_sections (struct bfd_link_info * info) 2402{ 2403 bfd * ibfd; 2404 2405 /* If we already have a note section, do not make another. */ 2406 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) 2407 if (bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME) != NULL) 2408 return TRUE; 2409 2410 return v850_elf_make_note_section (info->input_bfds) != NULL; 2411} 2412 2413bfd_boolean 2414v850_elf_set_note (bfd * abfd, enum v850_notes note, unsigned int val) 2415{ 2416 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME); 2417 2418 if (val > 2) 2419 /* At the moment, no known note has a value over 2. */ 2420 return FALSE; 2421 2422 if (notes == NULL) 2423 notes = v850_elf_make_note_section (abfd); 2424 if (notes == NULL) 2425 return FALSE; 2426 2427 v850_set_note (abfd, notes, note, val); 2428 return TRUE; 2429} 2430 2431/* Copy backend specific data from one object module to another. */ 2432 2433static bfd_boolean 2434v850_elf_copy_private_bfd_data (bfd * ibfd, bfd * obfd) 2435{ 2436 asection * onotes; 2437 asection * inotes; 2438 2439 /* If the output bfd does not have a note section, then 2440 skip the merge. The normal input to output section 2441 copying will take care of everythng for us. */ 2442 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL) 2443 return TRUE; 2444 2445 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) == NULL) 2446 return TRUE; 2447 2448 if (bfd_section_size (ibfd, inotes) == bfd_section_size (obfd, onotes)) 2449 { 2450 bfd_byte * icont; 2451 bfd_byte * ocont; 2452 2453 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL) 2454 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont)); 2455 2456 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL) 2457 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont)); 2458 2459 /* Copy/overwrite notes from the input to the output. */ 2460 memcpy (ocont, icont, bfd_section_size (obfd, onotes)); 2461 } 2462 2463 return TRUE; 2464} 2465#define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data 2466 2467static bfd_boolean 2468v850_elf_merge_notes (bfd * ibfd, bfd *obfd) 2469{ 2470 asection * onotes; 2471 asection * inotes; 2472 bfd_boolean result = TRUE; 2473 2474 /* If the output bfd does not have a note section, then 2475 skip the merge. The normal input to output section 2476 copying will take care of everythng for us. */ 2477 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL) 2478 return TRUE; 2479 2480 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) != NULL) 2481 { 2482 enum v850_notes id; 2483 bfd_byte * icont; 2484 bfd_byte * ocont; 2485 2486 BFD_ASSERT (bfd_section_size (ibfd, inotes) == bfd_section_size (obfd, onotes)); 2487 2488 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL) 2489 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont)); 2490 2491 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL) 2492 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont)); 2493 2494 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++) 2495 { 2496 unsigned int ival; 2497 unsigned int oval; 2498 bfd_byte * idata = icont + ((id - 1) * SIZEOF_V850_NOTE) + 16; 2499 bfd_byte * odata = ocont + ((id - 1) * SIZEOF_V850_NOTE) + 16; 2500 2501 ival = bfd_get_32 (ibfd, idata); 2502 oval = bfd_get_32 (obfd, odata); 2503 2504 if (ival == 0 || ival == oval) 2505 continue; 2506 2507 if (oval == 0) 2508 { 2509 bfd_put_32 (obfd, ival, odata); 2510 v850_set_note (obfd, onotes, id, ival); 2511 continue; 2512 } 2513 2514 /* We have a mismatch. The ABI defines how to handle 2515 this siutation on a per note type basis. */ 2516 switch (id) 2517 { 2518 case V850_NOTE_ALIGNMENT: 2519 if (oval == EF_RH850_DATA_ALIGN4) 2520 { 2521 _bfd_error_handler 2522 (_("error: %B needs 8-byte aligment but %B is set for 4-byte alignment"), 2523 ibfd, obfd); 2524 result = FALSE; 2525 } 2526 else 2527 /* ibfd uses 4-byte alignment, obfd uses 8-byte alignment. 2528 Leave the obfd alignment as it is. */ 2529 BFD_ASSERT (oval == EF_RH850_DATA_ALIGN8); 2530 2531 break; 2532 2533 case V850_NOTE_DATA_SIZE: 2534 if (oval == EF_RH850_DOUBLE32) 2535 { 2536 _bfd_error_handler (_("error: %B uses 64-bit doubles but %B uses 32-bit doubles"), 2537 ibfd, obfd); 2538 result = FALSE; 2539 } 2540 else 2541 /* ibfd uses 32-bit doubles, obfd uses 64-bit doubles. 2542 This is acceptable. Honest, that is what the ABI says. */ 2543 BFD_ASSERT (oval == EF_RH850_DOUBLE64); 2544 break; 2545 2546 case V850_NOTE_FPU_INFO: 2547 if (oval == EF_RH850_FPU20) 2548 { 2549 _bfd_error_handler (_("error: %B uses FPU-3.0 but %B only supports FPU-2.0"), 2550 ibfd, obfd); 2551 result = FALSE; 2552 } 2553 else 2554 /* ibfd uses FPU-2.0, obfd uses FPU-3.0. Leave obfd as it is. */ 2555 BFD_ASSERT (oval == EF_RH850_FPU30); 2556 2557 break; 2558 2559 default: 2560 /* None of the other conflicts matter. 2561 Stick with the current output values. */ 2562 break; 2563 } 2564 } 2565 2566 /* FIXME: We should also check for conflicts between the notes 2567 and the EF flags in the ELF header. */ 2568 } 2569 2570 return result; 2571} 2572 2573static void 2574print_v850_note (bfd * abfd, FILE * file, bfd_byte * data, enum v850_notes id) 2575{ 2576 unsigned int value = bfd_get_32 (abfd, data + ((id - 1) * SIZEOF_V850_NOTE) + 16); 2577 2578 switch (id) 2579 { 2580 case V850_NOTE_ALIGNMENT: 2581 fprintf (file, _(" alignment of 8-byte entities: ")); 2582 switch (value) 2583 { 2584 case EF_RH850_DATA_ALIGN4: fprintf (file, _("4-byte")); break; 2585 case EF_RH850_DATA_ALIGN8: fprintf (file, _("8-byte")); break; 2586 case 0: fprintf (file, _("not set")); break; 2587 default: fprintf (file, _("unknown: %x"), value); break; 2588 } 2589 fputc ('\n', file); 2590 break; 2591 2592 case V850_NOTE_DATA_SIZE: 2593 fprintf (file, _(" size of doubles: ")); 2594 switch (value) 2595 { 2596 case EF_RH850_DOUBLE32: fprintf (file, _("4-bytes")); break; 2597 case EF_RH850_DOUBLE64: fprintf (file, _("8-bytes")); break; 2598 case 0: fprintf (file, _("not set")); break; 2599 default: fprintf (file, _("unknown: %x"), value); break; 2600 } 2601 fputc ('\n', file); 2602 break; 2603 2604 case V850_NOTE_FPU_INFO: 2605 fprintf (file, _(" FPU support required: ")); 2606 switch (value) 2607 { 2608 case EF_RH850_FPU20: fprintf (file, _("FPU-2.0")); break; 2609 case EF_RH850_FPU30: fprintf (file, _("FPU-3.0")); break; 2610 case 0: fprintf (file, _("none")); break; 2611 default: fprintf (file, _("unknown: %x"), value); break; 2612 } 2613 fputc ('\n', file); 2614 break; 2615 2616 case V850_NOTE_SIMD_INFO: 2617 fprintf (file, _("SIMD use: ")); 2618 switch (value) 2619 { 2620 case EF_RH850_SIMD: fprintf (file, _("yes")); break; 2621 case 0: fprintf (file, _("no")); break; 2622 default: fprintf (file, _("unknown: %x"), value); break; 2623 } 2624 fputc ('\n', file); 2625 break; 2626 2627 case V850_NOTE_CACHE_INFO: 2628 fprintf (file, _("CACHE use: ")); 2629 switch (value) 2630 { 2631 case EF_RH850_CACHE: fprintf (file, _("yes")); break; 2632 case 0: fprintf (file, _("no")); break; 2633 default: fprintf (file, _("unknown: %x"), value); break; 2634 } 2635 fputc ('\n', file); 2636 break; 2637 2638 case V850_NOTE_MMU_INFO: 2639 fprintf (file, _("MMU use: ")); 2640 switch (value) 2641 { 2642 case EF_RH850_MMU: fprintf (file, _("yes")); break; 2643 case 0: fprintf (file, _("no")); break; 2644 default: fprintf (file, _("unknown: %x"), value); break; 2645 } 2646 fputc ('\n', file); 2647 break; 2648 2649 default: 2650 BFD_ASSERT (0); 2651 } 2652} 2653 2654static void 2655v850_elf_print_notes (bfd * abfd, FILE * file) 2656{ 2657 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME); 2658 enum v850_notes id; 2659 2660 if (notes == NULL || notes->contents == NULL) 2661 return; 2662 2663 BFD_ASSERT (bfd_section_size (abfd, notes) == NUM_V850_NOTES * SIZEOF_V850_NOTE); 2664 2665 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++) 2666 print_v850_note (abfd, file, notes->contents, id); 2667} 2668 2669/* Set the right machine number and architecture. */ 2670 2671static bfd_boolean 2672v850_elf_object_p (bfd *abfd) 2673{ 2674 enum bfd_architecture arch; 2675 unsigned long mach; 2676 2677 switch (elf_elfheader (abfd)->e_machine) 2678 { 2679 case EM_V800: 2680 arch = bfd_arch_v850_rh850; 2681 mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3) 2682 ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3; 2683 break; 2684 2685 case EM_CYGNUS_V850: 2686 case EM_V850: 2687 arch = bfd_arch_v850; 2688 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) 2689 { 2690 default: 2691 case E_V850_ARCH: mach = bfd_mach_v850; break; 2692 case E_V850E_ARCH: mach = bfd_mach_v850e; break; 2693 case E_V850E1_ARCH: mach = bfd_mach_v850e1; break; 2694 case E_V850E2_ARCH: mach = bfd_mach_v850e2; break; 2695 case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break; 2696 case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break; 2697 } 2698 break; 2699 2700 default: 2701 return FALSE; 2702 } 2703 2704 return bfd_default_set_arch_mach (abfd, arch, mach); 2705} 2706 2707/* Store the machine number in the flags field. */ 2708 2709static void 2710v850_elf_final_write_processing (bfd *abfd, 2711 bfd_boolean linker ATTRIBUTE_UNUSED) 2712{ 2713 unsigned long val; 2714 2715 switch (bfd_get_arch (abfd)) 2716 { 2717 case bfd_arch_v850_rh850: 2718 val = EF_RH850_ABI; 2719 if (bfd_get_mach (abfd) == bfd_mach_v850e3v5) 2720 val |= EF_V800_850E3; 2721 elf_elfheader (abfd)->e_flags |= val; 2722 break; 2723 2724 case bfd_arch_v850: 2725 switch (bfd_get_mach (abfd)) 2726 { 2727 default: 2728 case bfd_mach_v850: val = E_V850_ARCH; break; 2729 case bfd_mach_v850e: val = E_V850E_ARCH; break; 2730 case bfd_mach_v850e1: val = E_V850E1_ARCH; break; 2731 case bfd_mach_v850e2: val = E_V850E2_ARCH; break; 2732 case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break; 2733 case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break; 2734 } 2735 elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH; 2736 elf_elfheader (abfd)->e_flags |= val; 2737 break; 2738 default: 2739 break; 2740 } 2741} 2742 2743/* Function to keep V850 specific file flags. */ 2744 2745static bfd_boolean 2746v850_elf_set_private_flags (bfd *abfd, flagword flags) 2747{ 2748 BFD_ASSERT (!elf_flags_init (abfd) 2749 || elf_elfheader (abfd)->e_flags == flags); 2750 2751 elf_elfheader (abfd)->e_flags = flags; 2752 elf_flags_init (abfd) = TRUE; 2753 return TRUE; 2754} 2755 2756/* Merge backend specific data from an object file 2757 to the output object file when linking. */ 2758 2759static bfd_boolean 2760v850_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) 2761{ 2762 flagword out_flags; 2763 flagword in_flags; 2764 bfd_boolean result = TRUE; 2765 2766 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour 2767 || bfd_get_flavour (obfd) != bfd_target_elf_flavour) 2768 return TRUE; 2769 2770 result &= v850_elf_merge_notes (ibfd, obfd); 2771 2772 in_flags = elf_elfheader (ibfd)->e_flags; 2773 out_flags = elf_elfheader (obfd)->e_flags; 2774 2775 if (! elf_flags_init (obfd)) 2776 { 2777 /* If the input is the default architecture then do not 2778 bother setting the flags for the output architecture, 2779 instead allow future merges to do this. If no future 2780 merges ever set these flags then they will retain their 2781 unitialised values, which surprise surprise, correspond 2782 to the default values. */ 2783 if (bfd_get_arch_info (ibfd)->the_default) 2784 return TRUE; 2785 2786 elf_flags_init (obfd) = TRUE; 2787 elf_elfheader (obfd)->e_flags = in_flags; 2788 2789 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) 2790 && bfd_get_arch_info (obfd)->the_default) 2791 result &= bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); 2792 2793 return result; 2794 } 2795 2796 /* Check flag compatibility. */ 2797 if (in_flags == out_flags) 2798 return result; 2799 2800 if (bfd_get_arch (obfd) == bfd_arch_v850_rh850) 2801 { 2802 if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3)) 2803 { 2804 _bfd_error_handler (_("%B: Architecture mismatch with previous modules"), 2805 ibfd); 2806 elf_elfheader (obfd)->e_flags |= EF_V800_850E3; 2807 } 2808 2809 return result; 2810 } 2811 2812 if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH) 2813 && (in_flags & EF_V850_ARCH) != E_V850_ARCH) 2814 { 2815 /* Allow earlier architecture binaries to be linked with later binaries. 2816 Set the output binary to the later architecture, except for v850e1, 2817 which we set to v850e. */ 2818 if ( (in_flags & EF_V850_ARCH) == E_V850E1_ARCH 2819 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH) 2820 return result; 2821 2822 if ( (in_flags & EF_V850_ARCH) == E_V850_ARCH 2823 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH) 2824 { 2825 elf_elfheader (obfd)->e_flags = 2826 ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH); 2827 return result; 2828 } 2829 2830 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH 2831 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH) 2832 && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH) 2833 { 2834 elf_elfheader (obfd)->e_flags = 2835 ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH); 2836 return result; 2837 } 2838 2839 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH 2840 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH 2841 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH) 2842 && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH) 2843 { 2844 elf_elfheader (obfd)->e_flags = 2845 ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH); 2846 return result; 2847 } 2848 2849 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH 2850 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH 2851 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH 2852 || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH) 2853 && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH) 2854 { 2855 elf_elfheader (obfd)->e_flags = 2856 ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_ARCH); 2857 return result; 2858 } 2859 2860 _bfd_error_handler (_("%B: Architecture mismatch with previous modules"), 2861 ibfd); 2862 } 2863 2864 return result; 2865} 2866 2867/* Display the flags field. */ 2868 2869static bfd_boolean 2870v850_elf_print_private_bfd_data (bfd *abfd, void * ptr) 2871{ 2872 FILE * file = (FILE *) ptr; 2873 2874 BFD_ASSERT (abfd != NULL && ptr != NULL); 2875 2876 _bfd_elf_print_private_bfd_data (abfd, ptr); 2877 2878 /* xgettext:c-format. */ 2879 fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags); 2880 2881 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850) 2882 { 2883 if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI) 2884 fprintf (file, _("unknown v850 architecture")); 2885 else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3) 2886 fprintf (file, _("v850 E3 architecture")); 2887 else 2888 fprintf (file, _("v850 architecture")); 2889 } 2890 else 2891 { 2892 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) 2893 { 2894 default: 2895 case E_V850_ARCH: fprintf (file, _("v850 architecture")); break; 2896 case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break; 2897 case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break; 2898 case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break; 2899 case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break; 2900 case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 architecture")); break; 2901 } 2902 } 2903 2904 fputc ('\n', file); 2905 2906 v850_elf_print_notes (abfd, file); 2907 2908 return TRUE; 2909} 2910 2911/* V850 ELF uses four common sections. One is the usual one, and the 2912 others are for (small) objects in one of the special data areas: 2913 small, tiny and zero. All the objects are kept together, and then 2914 referenced via the gp register, the ep register or the r0 register 2915 respectively, which yields smaller, faster assembler code. This 2916 approach is copied from elf32-mips.c. */ 2917 2918static asection v850_elf_scom_section; 2919static asymbol v850_elf_scom_symbol; 2920static asymbol * v850_elf_scom_symbol_ptr; 2921static asection v850_elf_tcom_section; 2922static asymbol v850_elf_tcom_symbol; 2923static asymbol * v850_elf_tcom_symbol_ptr; 2924static asection v850_elf_zcom_section; 2925static asymbol v850_elf_zcom_symbol; 2926static asymbol * v850_elf_zcom_symbol_ptr; 2927 2928/* Given a BFD section, try to locate the 2929 corresponding ELF section index. */ 2930 2931static bfd_boolean 2932v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, 2933 asection *sec, 2934 int *retval) 2935{ 2936 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) 2937 *retval = SHN_V850_SCOMMON; 2938 else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0) 2939 *retval = SHN_V850_TCOMMON; 2940 else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0) 2941 *retval = SHN_V850_ZCOMMON; 2942 else 2943 return FALSE; 2944 2945 return TRUE; 2946} 2947 2948/* Handle the special V850 section numbers that a symbol may use. */ 2949 2950static void 2951v850_elf_symbol_processing (bfd *abfd, asymbol *asym) 2952{ 2953 elf_symbol_type * elfsym = (elf_symbol_type *) asym; 2954 unsigned int indx; 2955 2956 indx = elfsym->internal_elf_sym.st_shndx; 2957 2958 /* If the section index is an "ordinary" index, then it may 2959 refer to a v850 specific section created by the assembler. 2960 Check the section's type and change the index it matches. 2961 2962 FIXME: Should we alter the st_shndx field as well ? */ 2963 2964 if (indx < elf_numsections (abfd)) 2965 switch (elf_elfsections (abfd)[indx]->sh_type) 2966 { 2967 case SHT_V850_SCOMMON: 2968 indx = SHN_V850_SCOMMON; 2969 break; 2970 2971 case SHT_V850_TCOMMON: 2972 indx = SHN_V850_TCOMMON; 2973 break; 2974 2975 case SHT_V850_ZCOMMON: 2976 indx = SHN_V850_ZCOMMON; 2977 break; 2978 2979 default: 2980 break; 2981 } 2982 2983 switch (indx) 2984 { 2985 case SHN_V850_SCOMMON: 2986 if (v850_elf_scom_section.name == NULL) 2987 { 2988 /* Initialize the small common section. */ 2989 v850_elf_scom_section.name = ".scommon"; 2990 v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA; 2991 v850_elf_scom_section.output_section = & v850_elf_scom_section; 2992 v850_elf_scom_section.symbol = & v850_elf_scom_symbol; 2993 v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr; 2994 v850_elf_scom_symbol.name = ".scommon"; 2995 v850_elf_scom_symbol.flags = BSF_SECTION_SYM; 2996 v850_elf_scom_symbol.section = & v850_elf_scom_section; 2997 v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol; 2998 } 2999 asym->section = & v850_elf_scom_section; 3000 asym->value = elfsym->internal_elf_sym.st_size; 3001 break; 3002 3003 case SHN_V850_TCOMMON: 3004 if (v850_elf_tcom_section.name == NULL) 3005 { 3006 /* Initialize the tcommon section. */ 3007 v850_elf_tcom_section.name = ".tcommon"; 3008 v850_elf_tcom_section.flags = SEC_IS_COMMON; 3009 v850_elf_tcom_section.output_section = & v850_elf_tcom_section; 3010 v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol; 3011 v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr; 3012 v850_elf_tcom_symbol.name = ".tcommon"; 3013 v850_elf_tcom_symbol.flags = BSF_SECTION_SYM; 3014 v850_elf_tcom_symbol.section = & v850_elf_tcom_section; 3015 v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol; 3016 } 3017 asym->section = & v850_elf_tcom_section; 3018 asym->value = elfsym->internal_elf_sym.st_size; 3019 break; 3020 3021 case SHN_V850_ZCOMMON: 3022 if (v850_elf_zcom_section.name == NULL) 3023 { 3024 /* Initialize the zcommon section. */ 3025 v850_elf_zcom_section.name = ".zcommon"; 3026 v850_elf_zcom_section.flags = SEC_IS_COMMON; 3027 v850_elf_zcom_section.output_section = & v850_elf_zcom_section; 3028 v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol; 3029 v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr; 3030 v850_elf_zcom_symbol.name = ".zcommon"; 3031 v850_elf_zcom_symbol.flags = BSF_SECTION_SYM; 3032 v850_elf_zcom_symbol.section = & v850_elf_zcom_section; 3033 v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol; 3034 } 3035 asym->section = & v850_elf_zcom_section; 3036 asym->value = elfsym->internal_elf_sym.st_size; 3037 break; 3038 } 3039} 3040 3041/* Hook called by the linker routine which adds symbols from an object 3042 file. We must handle the special v850 section numbers here. */ 3043 3044static bfd_boolean 3045v850_elf_add_symbol_hook (bfd *abfd, 3046 struct bfd_link_info *info ATTRIBUTE_UNUSED, 3047 Elf_Internal_Sym *sym, 3048 const char **namep ATTRIBUTE_UNUSED, 3049 flagword *flagsp ATTRIBUTE_UNUSED, 3050 asection **secp, 3051 bfd_vma *valp) 3052{ 3053 unsigned int indx = sym->st_shndx; 3054 3055 /* If the section index is an "ordinary" index, then it may 3056 refer to a v850 specific section created by the assembler. 3057 Check the section's type and change the index it matches. 3058 3059 FIXME: Should we alter the st_shndx field as well ? */ 3060 3061 if (indx < elf_numsections (abfd)) 3062 switch (elf_elfsections (abfd)[indx]->sh_type) 3063 { 3064 case SHT_V850_SCOMMON: 3065 indx = SHN_V850_SCOMMON; 3066 break; 3067 3068 case SHT_V850_TCOMMON: 3069 indx = SHN_V850_TCOMMON; 3070 break; 3071 3072 case SHT_V850_ZCOMMON: 3073 indx = SHN_V850_ZCOMMON; 3074 break; 3075 3076 default: 3077 break; 3078 } 3079 3080 switch (indx) 3081 { 3082 case SHN_V850_SCOMMON: 3083 *secp = bfd_make_section_old_way (abfd, ".scommon"); 3084 (*secp)->flags |= SEC_IS_COMMON; 3085 *valp = sym->st_size; 3086 break; 3087 3088 case SHN_V850_TCOMMON: 3089 *secp = bfd_make_section_old_way (abfd, ".tcommon"); 3090 (*secp)->flags |= SEC_IS_COMMON; 3091 *valp = sym->st_size; 3092 break; 3093 3094 case SHN_V850_ZCOMMON: 3095 *secp = bfd_make_section_old_way (abfd, ".zcommon"); 3096 (*secp)->flags |= SEC_IS_COMMON; 3097 *valp = sym->st_size; 3098 break; 3099 } 3100 3101 return TRUE; 3102} 3103 3104static int 3105v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, 3106 const char *name ATTRIBUTE_UNUSED, 3107 Elf_Internal_Sym *sym, 3108 asection *input_sec, 3109 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) 3110{ 3111 /* If we see a common symbol, which implies a relocatable link, then 3112 if a symbol was in a special common section in an input file, mark 3113 it as a special common in the output file. */ 3114 3115 if (sym->st_shndx == SHN_COMMON) 3116 { 3117 if (strcmp (input_sec->name, ".scommon") == 0) 3118 sym->st_shndx = SHN_V850_SCOMMON; 3119 else if (strcmp (input_sec->name, ".tcommon") == 0) 3120 sym->st_shndx = SHN_V850_TCOMMON; 3121 else if (strcmp (input_sec->name, ".zcommon") == 0) 3122 sym->st_shndx = SHN_V850_ZCOMMON; 3123 } 3124 3125 /* The price we pay for using h->other unused bits as flags in the 3126 linker is cleaning up after ourselves. */ 3127 3128 sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA 3129 | V850_OTHER_ERROR); 3130 3131 return 1; 3132} 3133 3134static bfd_boolean 3135v850_elf_section_from_shdr (bfd *abfd, 3136 Elf_Internal_Shdr *hdr, 3137 const char *name, 3138 int shindex) 3139{ 3140 /* There ought to be a place to keep ELF backend specific flags, but 3141 at the moment there isn't one. We just keep track of the 3142 sections by their name, instead. */ 3143 3144 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) 3145 return FALSE; 3146 3147 switch (hdr->sh_type) 3148 { 3149 case SHT_V850_SCOMMON: 3150 case SHT_V850_TCOMMON: 3151 case SHT_V850_ZCOMMON: 3152 if (! bfd_set_section_flags (abfd, hdr->bfd_section, 3153 (bfd_get_section_flags (abfd, 3154 hdr->bfd_section) 3155 | SEC_IS_COMMON))) 3156 return FALSE; 3157 } 3158 3159 return TRUE; 3160} 3161 3162/* Set the correct type for a V850 ELF section. We do this 3163 by the section name, which is a hack, but ought to work. */ 3164 3165static bfd_boolean 3166v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, 3167 Elf_Internal_Shdr *hdr, 3168 asection *sec) 3169{ 3170 const char * name; 3171 3172 name = bfd_get_section_name (abfd, sec); 3173 3174 if (strcmp (name, ".scommon") == 0) 3175 hdr->sh_type = SHT_V850_SCOMMON; 3176 else if (strcmp (name, ".tcommon") == 0) 3177 hdr->sh_type = SHT_V850_TCOMMON; 3178 else if (strcmp (name, ".zcommon") == 0) 3179 hdr->sh_type = SHT_V850_ZCOMMON; 3180 /* Tweak the section type of .note.renesas. */ 3181 else if (strcmp (name, V850_NOTE_SECNAME) == 0) 3182 { 3183 hdr->sh_type = SHT_RENESAS_INFO; 3184 hdr->sh_entsize = SIZEOF_V850_NOTE; 3185 } 3186 3187 return TRUE; 3188} 3189 3190/* Delete some bytes from a section while relaxing. */ 3191 3192static bfd_boolean 3193v850_elf_relax_delete_bytes (bfd *abfd, 3194 asection *sec, 3195 bfd_vma addr, 3196 bfd_vma toaddr, 3197 int count) 3198{ 3199 Elf_Internal_Shdr *symtab_hdr; 3200 Elf32_External_Sym *extsyms; 3201 Elf32_External_Sym *esym; 3202 Elf32_External_Sym *esymend; 3203 int sym_index; 3204 unsigned int sec_shndx; 3205 bfd_byte *contents; 3206 Elf_Internal_Rela *irel; 3207 Elf_Internal_Rela *irelend; 3208 struct elf_link_hash_entry *sym_hash; 3209 Elf_External_Sym_Shndx *shndx; 3210 3211 symtab_hdr = &elf_tdata (abfd)->symtab_hdr; 3212 extsyms = (Elf32_External_Sym *) symtab_hdr->contents; 3213 3214 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); 3215 3216 contents = elf_section_data (sec)->this_hdr.contents; 3217 3218 /* The deletion must stop at the next ALIGN reloc for an alignment 3219 power larger than the number of bytes we are deleting. */ 3220 3221 /* Actually delete the bytes. */ 3222#if (DEBUG_RELAX & 2) 3223 fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n", 3224 sec->name, addr, toaddr, count ); 3225#endif 3226 memmove (contents + addr, contents + addr + count, 3227 toaddr - addr - count); 3228 memset (contents + toaddr-count, 0, count); 3229 3230 /* Adjust all the relocs. */ 3231 irel = elf_section_data (sec)->relocs; 3232 irelend = irel + sec->reloc_count; 3233 if (elf_symtab_shndx_list (abfd)) 3234 { 3235 Elf_Internal_Shdr *shndx_hdr; 3236 3237 shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; 3238 shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents; 3239 } 3240 else 3241 { 3242 shndx = NULL; 3243 } 3244 3245 for (; irel < irelend; irel++) 3246 { 3247 bfd_vma raddr, paddr, symval; 3248 Elf_Internal_Sym isym; 3249 3250 /* Get the new reloc address. */ 3251 raddr = irel->r_offset; 3252 if ((raddr >= (addr + count) && raddr < toaddr)) 3253 irel->r_offset -= count; 3254 3255 if (raddr >= addr && raddr < addr + count) 3256 { 3257 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), 3258 (int) R_V850_NONE); 3259 continue; 3260 } 3261 3262 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN) 3263 continue; 3264 3265 bfd_elf32_swap_symbol_in (abfd, 3266 extsyms + ELF32_R_SYM (irel->r_info), 3267 shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL, 3268 & isym); 3269 3270 if (isym.st_shndx != sec_shndx) 3271 continue; 3272 3273 /* Get the value of the symbol referred to by the reloc. */ 3274 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) 3275 { 3276 symval = isym.st_value; 3277#if (DEBUG_RELAX & 2) 3278 { 3279 char * name = bfd_elf_string_from_elf_section 3280 (abfd, symtab_hdr->sh_link, isym.st_name); 3281 fprintf (stderr, 3282 "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n", 3283 sec->name, name, isym.st_name, 3284 sec->output_section->vma, sec->output_offset, 3285 isym.st_value, irel->r_addend); 3286 } 3287#endif 3288 } 3289 else 3290 { 3291 unsigned long indx; 3292 struct elf_link_hash_entry * h; 3293 3294 /* An external symbol. */ 3295 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; 3296 3297 h = elf_sym_hashes (abfd) [indx]; 3298 BFD_ASSERT (h != NULL); 3299 3300 symval = h->root.u.def.value; 3301#if (DEBUG_RELAX & 2) 3302 fprintf (stderr, 3303 "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n", 3304 sec->name, h->root.root.string, h->root.u.def.value, 3305 sec->output_section->vma, sec->output_offset, irel->r_addend); 3306#endif 3307 } 3308 3309 paddr = symval + irel->r_addend; 3310 3311 if ( (symval >= addr + count && symval < toaddr) 3312 && (paddr < addr + count || paddr >= toaddr)) 3313 irel->r_addend += count; 3314 else if ( (symval < addr + count || symval >= toaddr) 3315 && (paddr >= addr + count && paddr < toaddr)) 3316 irel->r_addend -= count; 3317 } 3318 3319 /* Adjust the local symbols defined in this section. */ 3320 esym = extsyms; 3321 esymend = esym + symtab_hdr->sh_info; 3322 3323 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL)) 3324 { 3325 Elf_Internal_Sym isym; 3326 3327 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym); 3328 3329 if (isym.st_shndx == sec_shndx 3330 && isym.st_value >= addr + count 3331 && isym.st_value < toaddr) 3332 { 3333 isym.st_value -= count; 3334 3335 if (isym.st_value + isym.st_size >= toaddr) 3336 isym.st_size += count; 3337 3338 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); 3339 } 3340 else if (isym.st_shndx == sec_shndx 3341 && isym.st_value < addr + count) 3342 { 3343 if (isym.st_value+isym.st_size >= addr + count 3344 && isym.st_value+isym.st_size < toaddr) 3345 isym.st_size -= count; 3346 3347 if (isym.st_value >= addr 3348 && isym.st_value < addr + count) 3349 isym.st_value = addr; 3350 3351 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); 3352 } 3353 } 3354 3355 /* Now adjust the global symbols defined in this section. */ 3356 esym = extsyms + symtab_hdr->sh_info; 3357 esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)); 3358 3359 for (sym_index = 0; esym < esymend; esym ++, sym_index ++) 3360 { 3361 Elf_Internal_Sym isym; 3362 3363 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym); 3364 sym_hash = elf_sym_hashes (abfd) [sym_index]; 3365 3366 if (isym.st_shndx == sec_shndx 3367 && ((sym_hash)->root.type == bfd_link_hash_defined 3368 || (sym_hash)->root.type == bfd_link_hash_defweak) 3369 && (sym_hash)->root.u.def.section == sec 3370 && (sym_hash)->root.u.def.value >= addr + count 3371 && (sym_hash)->root.u.def.value < toaddr) 3372 { 3373 if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr) 3374 { 3375 isym.st_size += count; 3376 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); 3377 } 3378 3379 (sym_hash)->root.u.def.value -= count; 3380 } 3381 else if (isym.st_shndx == sec_shndx 3382 && ((sym_hash)->root.type == bfd_link_hash_defined 3383 || (sym_hash)->root.type == bfd_link_hash_defweak) 3384 && (sym_hash)->root.u.def.section == sec 3385 && (sym_hash)->root.u.def.value < addr + count) 3386 { 3387 if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count 3388 && (sym_hash)->root.u.def.value+isym.st_size < toaddr) 3389 isym.st_size -= count; 3390 3391 if ((sym_hash)->root.u.def.value >= addr 3392 && (sym_hash)->root.u.def.value < addr + count) 3393 (sym_hash)->root.u.def.value = addr; 3394 3395 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); 3396 } 3397 3398 if (shndx) 3399 ++ shndx; 3400 } 3401 3402 return TRUE; 3403} 3404 3405#define NOP_OPCODE (0x0000) 3406#define MOVHI 0x0640 /* 4byte. */ 3407#define MOVHI_MASK 0x07e0 3408#define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */ 3409#define MOVHI_R2(insn) ((insn) >> 11) 3410#define MOVEA 0x0620 /* 2byte. */ 3411#define MOVEA_MASK 0x07e0 3412#define MOVEA_R1(insn) ((insn) & 0x1f) 3413#define MOVEA_R2(insn) ((insn) >> 11) 3414#define JARL_4 0x00040780 /* 4byte. */ 3415#define JARL_4_MASK 0xFFFF07FF 3416#define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11) 3417#define ADD_I 0x0240 /* 2byte. */ 3418#define ADD_I_MASK 0x07e0 3419#define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */ 3420#define ADD_R2(insn) ((insn) >> 11) 3421#define JMP_R 0x0060 /* 2byte. */ 3422#define JMP_R_MASK 0xFFE0 3423#define JMP_R1(insn) ((insn) & 0x1f) 3424 3425static bfd_boolean 3426v850_elf_relax_section (bfd *abfd, 3427 asection *sec, 3428 struct bfd_link_info *link_info, 3429 bfd_boolean *again) 3430{ 3431 Elf_Internal_Shdr *symtab_hdr; 3432 Elf_Internal_Rela *internal_relocs; 3433 Elf_Internal_Rela *irel; 3434 Elf_Internal_Rela *irelend; 3435 Elf_Internal_Rela *irelalign = NULL; 3436 Elf_Internal_Sym *isymbuf = NULL; 3437 bfd_byte *contents = NULL; 3438 bfd_vma addr = 0; 3439 bfd_vma toaddr; 3440 int align_pad_size = 0; 3441 bfd_boolean result = TRUE; 3442 3443 *again = FALSE; 3444 3445 if (bfd_link_relocatable (link_info) 3446 || (sec->flags & SEC_RELOC) == 0 3447 || sec->reloc_count == 0) 3448 return TRUE; 3449 3450 symtab_hdr = & elf_tdata (abfd)->symtab_hdr; 3451 3452 internal_relocs = (_bfd_elf_link_read_relocs 3453 (abfd, sec, NULL, NULL, link_info->keep_memory)); 3454 if (internal_relocs == NULL) 3455 goto error_return; 3456 3457 irelend = internal_relocs + sec->reloc_count; 3458 3459 while (addr < sec->size) 3460 { 3461 toaddr = sec->size; 3462 3463 for (irel = internal_relocs; irel < irelend; irel ++) 3464 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN 3465 && irel->r_offset > addr 3466 && irel->r_offset < toaddr) 3467 toaddr = irel->r_offset; 3468 3469#ifdef DEBUG_RELAX 3470 fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n", 3471 addr, toaddr, align_pad_size); 3472#endif 3473 if (irelalign) 3474 { 3475 bfd_vma alignto; 3476 bfd_vma alignmoveto; 3477 3478 alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend); 3479 alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend); 3480 3481 if (alignmoveto < alignto) 3482 { 3483 bfd_vma i; 3484 3485 align_pad_size = alignto - alignmoveto; 3486#ifdef DEBUG_RELAX 3487 fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n", 3488 alignmoveto, toaddr, align_pad_size); 3489#endif 3490 if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto, 3491 toaddr, align_pad_size)) 3492 goto error_return; 3493 3494 for (i = BFD_ALIGN (toaddr - align_pad_size, 1); 3495 (i + 1) < toaddr; i += 2) 3496 bfd_put_16 (abfd, NOP_OPCODE, contents + i); 3497 3498 addr = alignmoveto; 3499 } 3500 else 3501 align_pad_size = 0; 3502 } 3503 3504 for (irel = internal_relocs; irel < irelend; irel++) 3505 { 3506 bfd_vma laddr; 3507 bfd_vma addend; 3508 bfd_vma symval; 3509 int insn[5]; 3510 int no_match = -1; 3511 Elf_Internal_Rela *hi_irelfn; 3512 Elf_Internal_Rela *lo_irelfn; 3513 Elf_Internal_Rela *irelcall; 3514 bfd_signed_vma foff; 3515 unsigned int r_type; 3516 3517 if (! (irel->r_offset >= addr && irel->r_offset < toaddr 3518 && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL 3519 || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP))) 3520 continue; 3521 3522#ifdef DEBUG_RELAX 3523 fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n", 3524 irel->r_info, 3525 irel->r_offset, 3526 irel->r_addend ); 3527#endif 3528 3529 /* Get the section contents. */ 3530 if (contents == NULL) 3531 { 3532 if (elf_section_data (sec)->this_hdr.contents != NULL) 3533 contents = elf_section_data (sec)->this_hdr.contents; 3534 else 3535 { 3536 if (! bfd_malloc_and_get_section (abfd, sec, &contents)) 3537 goto error_return; 3538 } 3539 } 3540 3541 /* Read this BFD's local symbols if we haven't done so already. */ 3542 if (isymbuf == NULL && symtab_hdr->sh_info != 0) 3543 { 3544 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; 3545 if (isymbuf == NULL) 3546 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, 3547 symtab_hdr->sh_info, 0, 3548 NULL, NULL, NULL); 3549 if (isymbuf == NULL) 3550 goto error_return; 3551 } 3552 3553 laddr = irel->r_offset; 3554 3555 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL) 3556 { 3557 /* Check code for -mlong-calls output. */ 3558 if (laddr + 16 <= (bfd_vma) sec->size) 3559 { 3560 insn[0] = bfd_get_16 (abfd, contents + laddr); 3561 insn[1] = bfd_get_16 (abfd, contents + laddr + 4); 3562 insn[2] = bfd_get_32 (abfd, contents + laddr + 8); 3563 insn[3] = bfd_get_16 (abfd, contents + laddr + 12); 3564 insn[4] = bfd_get_16 (abfd, contents + laddr + 14); 3565 3566 if ((insn[0] & MOVHI_MASK) != MOVHI 3567 || MOVHI_R1 (insn[0]) != 0) 3568 no_match = 0; 3569 3570 if (no_match < 0 3571 && ((insn[1] & MOVEA_MASK) != MOVEA 3572 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1]))) 3573 no_match = 1; 3574 3575 if (no_match < 0 3576 && (insn[2] & JARL_4_MASK) != JARL_4) 3577 no_match = 2; 3578 3579 if (no_match < 0 3580 && ((insn[3] & ADD_I_MASK) != ADD_I 3581 || ADD_I5 (insn[3]) != 4 3582 || JARL_R2 (insn[2]) != ADD_R2 (insn[3]))) 3583 no_match = 3; 3584 3585 if (no_match < 0 3586 && ((insn[4] & JMP_R_MASK) != JMP_R 3587 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4]))) 3588 no_match = 4; 3589 } 3590 else 3591 { 3592 ((*_bfd_error_handler) 3593 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insns", 3594 bfd_get_filename (abfd), (unsigned long) irel->r_offset)); 3595 3596 continue; 3597 } 3598 3599 if (no_match >= 0) 3600 { 3601 ((*_bfd_error_handler) 3602 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insn 0x%x", 3603 bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match])); 3604 3605 continue; 3606 } 3607 3608 /* Get the reloc for the address from which the register is 3609 being loaded. This reloc will tell us which function is 3610 actually being called. */ 3611 3612 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++) 3613 { 3614 r_type = ELF32_R_TYPE (hi_irelfn->r_info); 3615 3616 if (hi_irelfn->r_offset == laddr + 2 3617 && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1)) 3618 break; 3619 } 3620 3621 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++) 3622 { 3623 r_type = ELF32_R_TYPE (lo_irelfn->r_info); 3624 3625 if (lo_irelfn->r_offset == laddr + 6 3626 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO)) 3627 break; 3628 } 3629 3630 for (irelcall = internal_relocs; irelcall < irelend; irelcall ++) 3631 { 3632 r_type = ELF32_R_TYPE (irelcall->r_info); 3633 3634 if (irelcall->r_offset == laddr + 8 3635 && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22)) 3636 break; 3637 } 3638 3639 if ( hi_irelfn == irelend 3640 || lo_irelfn == irelend 3641 || irelcall == irelend) 3642 { 3643 ((*_bfd_error_handler) 3644 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc", 3645 bfd_get_filename (abfd), (unsigned long) irel->r_offset )); 3646 3647 continue; 3648 } 3649 3650 if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info) 3651 { 3652 Elf_Internal_Sym * isym; 3653 3654 /* A local symbol. */ 3655 isym = isymbuf + ELF32_R_SYM (irelcall->r_info); 3656 3657 symval = isym->st_value; 3658 } 3659 else 3660 { 3661 unsigned long indx; 3662 struct elf_link_hash_entry * h; 3663 3664 /* An external symbol. */ 3665 indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info; 3666 h = elf_sym_hashes (abfd)[indx]; 3667 BFD_ASSERT (h != NULL); 3668 3669 if ( h->root.type != bfd_link_hash_defined 3670 && h->root.type != bfd_link_hash_defweak) 3671 /* This appears to be a reference to an undefined 3672 symbol. Just ignore it--it will be caught by the 3673 regular reloc processing. */ 3674 continue; 3675 3676 symval = h->root.u.def.value; 3677 } 3678 3679 if (symval + irelcall->r_addend != irelcall->r_offset + 4) 3680 { 3681 ((*_bfd_error_handler) 3682 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc 0x%lx", 3683 bfd_get_filename (abfd), (unsigned long) irel->r_offset, irelcall->r_offset )); 3684 3685 continue; 3686 } 3687 3688 /* Get the value of the symbol referred to by the reloc. */ 3689 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) 3690 { 3691 Elf_Internal_Sym *isym; 3692 asection *sym_sec; 3693 3694 /* A local symbol. */ 3695 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info); 3696 3697 if (isym->st_shndx == SHN_UNDEF) 3698 sym_sec = bfd_und_section_ptr; 3699 else if (isym->st_shndx == SHN_ABS) 3700 sym_sec = bfd_abs_section_ptr; 3701 else if (isym->st_shndx == SHN_COMMON) 3702 sym_sec = bfd_com_section_ptr; 3703 else 3704 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); 3705 symval = (isym->st_value 3706 + sym_sec->output_section->vma 3707 + sym_sec->output_offset); 3708 } 3709 else 3710 { 3711 unsigned long indx; 3712 struct elf_link_hash_entry *h; 3713 3714 /* An external symbol. */ 3715 indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info; 3716 h = elf_sym_hashes (abfd)[indx]; 3717 BFD_ASSERT (h != NULL); 3718 3719 if ( h->root.type != bfd_link_hash_defined 3720 && h->root.type != bfd_link_hash_defweak) 3721 /* This appears to be a reference to an undefined 3722 symbol. Just ignore it--it will be caught by the 3723 regular reloc processing. */ 3724 continue; 3725 3726 symval = (h->root.u.def.value 3727 + h->root.u.def.section->output_section->vma 3728 + h->root.u.def.section->output_offset); 3729 } 3730 3731 addend = irel->r_addend; 3732 3733 foff = (symval + addend 3734 - (irel->r_offset 3735 + sec->output_section->vma 3736 + sec->output_offset 3737 + 4)); 3738#ifdef DEBUG_RELAX 3739 fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n", 3740 irel->r_offset, 3741 (irel->r_offset 3742 + sec->output_section->vma 3743 + sec->output_offset), 3744 symval, addend, foff); 3745#endif 3746 3747 if (foff < -0x100000 || foff >= 0x100000) 3748 /* After all that work, we can't shorten this function call. */ 3749 continue; 3750 3751 /* For simplicity of coding, we are going to modify the section 3752 contents, the section relocs, and the BFD symbol table. We 3753 must tell the rest of the code not to free up this 3754 information. It would be possible to instead create a table 3755 of changes which have to be made, as is done in coff-mips.c; 3756 that would be more work, but would require less memory when 3757 the linker is run. */ 3758 elf_section_data (sec)->relocs = internal_relocs; 3759 elf_section_data (sec)->this_hdr.contents = contents; 3760 symtab_hdr->contents = (bfd_byte *) isymbuf; 3761 3762 /* Replace the long call with a jarl. */ 3763 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850) 3764 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22); 3765 else 3766 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL); 3767 3768 addend = 0; 3769 3770 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) 3771 /* If this needs to be changed because of future relaxing, 3772 it will be handled here like other internal IND12W 3773 relocs. */ 3774 bfd_put_32 (abfd, 3775 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf), 3776 contents + irel->r_offset); 3777 else 3778 /* We can't fully resolve this yet, because the external 3779 symbol value may be changed by future relaxing. 3780 We let the final link phase handle it. */ 3781 bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11), 3782 contents + irel->r_offset); 3783 3784 hi_irelfn->r_info = 3785 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); 3786 lo_irelfn->r_info = 3787 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); 3788 irelcall->r_info = 3789 ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE); 3790 3791 if (! v850_elf_relax_delete_bytes (abfd, sec, 3792 irel->r_offset + 4, toaddr, 12)) 3793 goto error_return; 3794 3795 align_pad_size += 12; 3796 } 3797 else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP) 3798 { 3799 /* Check code for -mlong-jumps output. */ 3800 if (laddr + 10 <= (bfd_vma) sec->size) 3801 { 3802 insn[0] = bfd_get_16 (abfd, contents + laddr); 3803 insn[1] = bfd_get_16 (abfd, contents + laddr + 4); 3804 insn[2] = bfd_get_16 (abfd, contents + laddr + 8); 3805 3806 if ((insn[0] & MOVHI_MASK) != MOVHI 3807 || MOVHI_R1 (insn[0]) != 0) 3808 no_match = 0; 3809 3810 if (no_match < 0 3811 && ((insn[1] & MOVEA_MASK) != MOVEA 3812 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1]))) 3813 no_match = 1; 3814 3815 if (no_match < 0 3816 && ((insn[2] & JMP_R_MASK) != JMP_R 3817 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2]))) 3818 no_match = 4; 3819 } 3820 else 3821 { 3822 ((*_bfd_error_handler) 3823 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insns", 3824 bfd_get_filename (abfd), (unsigned long) irel->r_offset)); 3825 3826 continue; 3827 } 3828 3829 if (no_match >= 0) 3830 { 3831 ((*_bfd_error_handler) 3832 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insn 0x%x", 3833 bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match])); 3834 3835 continue; 3836 } 3837 3838 /* Get the reloc for the address from which the register is 3839 being loaded. This reloc will tell us which function is 3840 actually being called. */ 3841 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++) 3842 { 3843 r_type = ELF32_R_TYPE (hi_irelfn->r_info); 3844 3845 if (hi_irelfn->r_offset == laddr + 2 3846 && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1)) 3847 break; 3848 } 3849 3850 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++) 3851 { 3852 r_type = ELF32_R_TYPE (lo_irelfn->r_info); 3853 3854 if (lo_irelfn->r_offset == laddr + 6 3855 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO)) 3856 break; 3857 } 3858 3859 if ( hi_irelfn == irelend 3860 || lo_irelfn == irelend) 3861 { 3862 ((*_bfd_error_handler) 3863 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized reloc", 3864 bfd_get_filename (abfd), (unsigned long) irel->r_offset )); 3865 3866 continue; 3867 } 3868 3869 /* Get the value of the symbol referred to by the reloc. */ 3870 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) 3871 { 3872 Elf_Internal_Sym * isym; 3873 asection * sym_sec; 3874 3875 /* A local symbol. */ 3876 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info); 3877 3878 if (isym->st_shndx == SHN_UNDEF) 3879 sym_sec = bfd_und_section_ptr; 3880 else if (isym->st_shndx == SHN_ABS) 3881 sym_sec = bfd_abs_section_ptr; 3882 else if (isym->st_shndx == SHN_COMMON) 3883 sym_sec = bfd_com_section_ptr; 3884 else 3885 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); 3886 symval = (isym->st_value 3887 + sym_sec->output_section->vma 3888 + sym_sec->output_offset); 3889#ifdef DEBUG_RELAX 3890 { 3891 char * name = bfd_elf_string_from_elf_section 3892 (abfd, symtab_hdr->sh_link, isym->st_name); 3893 3894 fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n", 3895 sym_sec->name, name, isym->st_name, 3896 sym_sec->output_section->vma, 3897 sym_sec->output_offset, 3898 isym->st_value, irel->r_addend); 3899 } 3900#endif 3901 } 3902 else 3903 { 3904 unsigned long indx; 3905 struct elf_link_hash_entry * h; 3906 3907 /* An external symbol. */ 3908 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; 3909 h = elf_sym_hashes (abfd)[indx]; 3910 BFD_ASSERT (h != NULL); 3911 3912 if ( h->root.type != bfd_link_hash_defined 3913 && h->root.type != bfd_link_hash_defweak) 3914 /* This appears to be a reference to an undefined 3915 symbol. Just ignore it--it will be caught by the 3916 regular reloc processing. */ 3917 continue; 3918 3919 symval = (h->root.u.def.value 3920 + h->root.u.def.section->output_section->vma 3921 + h->root.u.def.section->output_offset); 3922#ifdef DEBUG_RELAX 3923 fprintf (stderr, 3924 "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n", 3925 sec->name, h->root.root.string, h->root.u.def.value, 3926 sec->output_section->vma, sec->output_offset, irel->r_addend); 3927#endif 3928 } 3929 3930 addend = irel->r_addend; 3931 3932 foff = (symval + addend 3933 - (irel->r_offset 3934 + sec->output_section->vma 3935 + sec->output_offset 3936 + 4)); 3937#ifdef DEBUG_RELAX 3938 fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n", 3939 irel->r_offset, 3940 (irel->r_offset 3941 + sec->output_section->vma 3942 + sec->output_offset), 3943 symval, addend, foff); 3944#endif 3945 if (foff < -0x100000 || foff >= 0x100000) 3946 /* After all that work, we can't shorten this function call. */ 3947 continue; 3948 3949 /* For simplicity of coding, we are going to modify the section 3950 contents, the section relocs, and the BFD symbol table. We 3951 must tell the rest of the code not to free up this 3952 information. It would be possible to instead create a table 3953 of changes which have to be made, as is done in coff-mips.c; 3954 that would be more work, but would require less memory when 3955 the linker is run. */ 3956 elf_section_data (sec)->relocs = internal_relocs; 3957 elf_section_data (sec)->this_hdr.contents = contents; 3958 symtab_hdr->contents = (bfd_byte *) isymbuf; 3959 3960 if (foff < -0x100 || foff >= 0x100) 3961 { 3962 /* Replace the long jump with a jr. */ 3963 3964 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850) 3965 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22); 3966 else 3967 irel->r_info = 3968 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL); 3969 3970 irel->r_addend = addend; 3971 addend = 0; 3972 3973 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) 3974 /* If this needs to be changed because of future relaxing, 3975 it will be handled here like other internal IND12W 3976 relocs. */ 3977 bfd_put_32 (abfd, 3978 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf), 3979 contents + irel->r_offset); 3980 else 3981 /* We can't fully resolve this yet, because the external 3982 symbol value may be changed by future relaxing. 3983 We let the final link phase handle it. */ 3984 bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset); 3985 3986 hi_irelfn->r_info = 3987 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); 3988 lo_irelfn->r_info = 3989 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); 3990 if (!v850_elf_relax_delete_bytes (abfd, sec, 3991 irel->r_offset + 4, toaddr, 6)) 3992 goto error_return; 3993 3994 align_pad_size += 6; 3995 } 3996 else 3997 { 3998 /* Replace the long jump with a br. */ 3999 4000 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850) 4001 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9); 4002 else 4003 irel->r_info = 4004 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL); 4005 4006 irel->r_addend = addend; 4007 addend = 0; 4008 4009 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) 4010 /* If this needs to be changed because of future relaxing, 4011 it will be handled here like other internal IND12W 4012 relocs. */ 4013 bfd_put_16 (abfd, 4014 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070), 4015 contents + irel->r_offset); 4016 else 4017 /* We can't fully resolve this yet, because the external 4018 symbol value may be changed by future relaxing. 4019 We let the final link phase handle it. */ 4020 bfd_put_16 (abfd, 0x0585, contents + irel->r_offset); 4021 4022 hi_irelfn->r_info = 4023 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); 4024 lo_irelfn->r_info = 4025 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); 4026 if (!v850_elf_relax_delete_bytes (abfd, sec, 4027 irel->r_offset + 2, toaddr, 8)) 4028 goto error_return; 4029 4030 align_pad_size += 8; 4031 } 4032 } 4033 } 4034 4035 irelalign = NULL; 4036 for (irel = internal_relocs; irel < irelend; irel++) 4037 { 4038 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN 4039 && irel->r_offset == toaddr) 4040 { 4041 irel->r_offset -= align_pad_size; 4042 4043 if (irelalign == NULL || irelalign->r_addend > irel->r_addend) 4044 irelalign = irel; 4045 } 4046 } 4047 4048 addr = toaddr; 4049 } 4050 4051 if (!irelalign) 4052 { 4053#ifdef DEBUG_RELAX 4054 fprintf (stderr, "relax pad %d shorten %d -> %d\n", 4055 align_pad_size, 4056 sec->size, 4057 sec->size - align_pad_size); 4058#endif 4059 sec->size -= align_pad_size; 4060 } 4061 4062 finish: 4063 if (internal_relocs != NULL 4064 && elf_section_data (sec)->relocs != internal_relocs) 4065 free (internal_relocs); 4066 4067 if (contents != NULL 4068 && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents) 4069 free (contents); 4070 4071 if (isymbuf != NULL 4072 && symtab_hdr->contents != (bfd_byte *) isymbuf) 4073 free (isymbuf); 4074 4075 return result; 4076 4077 error_return: 4078 result = FALSE; 4079 goto finish; 4080} 4081 4082static const struct bfd_elf_special_section v850_elf_special_sections[] = 4083{ 4084 { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) }, 4085 { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE 4086 + SHF_EXECINSTR) }, 4087 { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC 4088 + SHF_V850_GPREL) }, 4089 { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC 4090 + SHF_V850_R0REL) }, 4091 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE 4092 + SHF_V850_GPREL) }, 4093 { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE 4094 + SHF_V850_GPREL) }, 4095 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE 4096 + SHF_V850_GPREL) }, 4097 { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE 4098 + SHF_V850_EPREL) }, 4099 { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE 4100 + SHF_V850_R0REL) }, 4101 { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE 4102 + SHF_V850_EPREL) }, 4103 { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE 4104 + SHF_V850_R0REL) }, 4105 { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE 4106 + SHF_V850_R0REL) }, 4107 { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE 4108 + SHF_V850_R0REL) }, 4109 { NULL, 0, 0, 0, 0 } 4110}; 4111 4112#define TARGET_LITTLE_SYM v850_elf32_vec 4113#define TARGET_LITTLE_NAME "elf32-v850" 4114#define ELF_ARCH bfd_arch_v850 4115#define ELF_MACHINE_CODE EM_V850 4116#define ELF_MACHINE_ALT1 EM_CYGNUS_V850 4117#define ELF_MAXPAGESIZE 0x1000 4118 4119#define elf_info_to_howto v850_elf_info_to_howto_rela 4120#define elf_info_to_howto_rel v850_elf_info_to_howto_rel 4121 4122#define elf_backend_check_relocs v850_elf_check_relocs 4123#define elf_backend_relocate_section v850_elf_relocate_section 4124#define elf_backend_object_p v850_elf_object_p 4125#define elf_backend_final_write_processing v850_elf_final_write_processing 4126#define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section 4127#define elf_backend_symbol_processing v850_elf_symbol_processing 4128#define elf_backend_add_symbol_hook v850_elf_add_symbol_hook 4129#define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook 4130#define elf_backend_section_from_shdr v850_elf_section_from_shdr 4131#define elf_backend_fake_sections v850_elf_fake_sections 4132#define elf_backend_gc_mark_hook v850_elf_gc_mark_hook 4133#define elf_backend_special_sections v850_elf_special_sections 4134 4135#define elf_backend_can_gc_sections 1 4136#define elf_backend_rela_normal 1 4137 4138#define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name 4139#define bfd_elf32_bfd_is_target_special_symbol v850_elf_is_target_special_symbol 4140 4141#define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup 4142#define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup 4143#define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data 4144#define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags 4145#define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data 4146#define bfd_elf32_bfd_relax_section v850_elf_relax_section 4147 4148#define elf_symbol_leading_char '_' 4149 4150#undef elf32_bed 4151#define elf32_bed elf32_v850_bed 4152 4153#include "elf32-target.h" 4154 4155/* Map BFD reloc types to V800 ELF reloc types. */ 4156 4157static const struct v850_elf_reloc_map v800_elf_reloc_map[] = 4158{ 4159 { BFD_RELOC_NONE, R_V810_NONE }, 4160 { BFD_RELOC_8, R_V810_BYTE }, 4161 { BFD_RELOC_16, R_V810_HWORD }, 4162 { BFD_RELOC_32, R_V810_WORD }, 4163 { BFD_RELOC_LO16, R_V810_WLO }, 4164 { BFD_RELOC_HI16, R_V810_WHI }, 4165 { BFD_RELOC_HI16_S, R_V810_WHI1 }, 4166 { BFD_RELOC_V850_32_PCREL, R_V850_PC32 }, 4167 { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 }, 4168 { BFD_RELOC_V850_17_PCREL, R_V850_PC17 }, 4169 { BFD_RELOC_V850_16_PCREL, R_V850_PC16U }, 4170 { BFD_RELOC_V850_9_PCREL, R_V850_PC9 }, 4171 { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */ 4172 { BFD_RELOC_V850_23, R_V850_WLO23 }, 4173 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO }, 4174 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD }, 4175 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD }, 4176 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD }, 4177 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 } 4178}; 4179 4180/* Map a bfd relocation into the appropriate howto structure. */ 4181 4182static reloc_howto_type * 4183v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code) 4184{ 4185 unsigned int i; 4186 4187 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850); 4188 4189 for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;) 4190 if (v800_elf_reloc_map[i].bfd_reloc_val == code) 4191 { 4192 unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val; 4193 unsigned int idx = elf_reloc_val - R_V810_NONE; 4194 4195 BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val); 4196 4197 return v800_elf_howto_table + idx; 4198 } 4199 4200#ifdef DEBUG 4201 fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code); 4202#endif 4203 return NULL; 4204} 4205 4206static reloc_howto_type * 4207v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name) 4208{ 4209 unsigned int i; 4210 4211 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850); 4212 4213 for (i = ARRAY_SIZE (v800_elf_howto_table); i--;) 4214 if (v800_elf_howto_table[i].name != NULL 4215 && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0) 4216 return v800_elf_howto_table + i; 4217 4218 return NULL; 4219} 4220 4221 4222/* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */ 4223 4224static void 4225v800_elf_info_to_howto (bfd * abfd, 4226 arelent * cache_ptr, 4227 Elf_Internal_Rela * dst) 4228{ 4229 unsigned int r_type = ELF32_R_TYPE (dst->r_info); 4230 4231 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850); 4232 4233 BFD_ASSERT (r_type < (unsigned int) R_V800_max); 4234 4235 if (r_type == R_V800_NONE) 4236 r_type = R_V810_NONE; 4237 4238 BFD_ASSERT (r_type >= (unsigned int) R_V810_NONE); 4239 r_type -= R_V810_NONE; 4240 BFD_ASSERT (r_type < ARRAY_SIZE (v800_elf_howto_table)); 4241 4242 cache_ptr->howto = v800_elf_howto_table + r_type; 4243} 4244 4245#undef TARGET_LITTLE_SYM 4246#define TARGET_LITTLE_SYM v800_elf32_vec 4247#undef TARGET_LITTLE_NAME 4248#define TARGET_LITTLE_NAME "elf32-v850-rh850" 4249#undef ELF_ARCH 4250#define ELF_ARCH bfd_arch_v850_rh850 4251#undef ELF_MACHINE_CODE 4252#define ELF_MACHINE_CODE EM_V800 4253#undef ELF_MACHINE_ALT1 4254 4255#undef elf32_bed 4256#define elf32_bed elf32_v850_rh850_bed 4257 4258#undef elf_info_to_howto 4259#define elf_info_to_howto v800_elf_info_to_howto 4260#undef elf_info_to_howto_rel 4261#define elf_info_to_howto_rel NULL 4262#undef bfd_elf32_bfd_reloc_type_lookup 4263#define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup 4264#undef bfd_elf32_bfd_reloc_name_lookup 4265#define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup 4266 4267#include "elf32-target.h" 4268