1/* BFD support for handling relocation entries. 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 3 2000, 2001, 2002, 2003, 2004 4 Free Software Foundation, Inc. 5 Written by Cygnus Support. 6 7 This file is part of BFD, the Binary File Descriptor library. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 2 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; if not, write to the Free Software 21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 22 23/* 24SECTION 25 Relocations 26 27 BFD maintains relocations in much the same way it maintains 28 symbols: they are left alone until required, then read in 29 en-masse and translated into an internal form. A common 30 routine <<bfd_perform_relocation>> acts upon the 31 canonical form to do the fixup. 32 33 Relocations are maintained on a per section basis, 34 while symbols are maintained on a per BFD basis. 35 36 All that a back end has to do to fit the BFD interface is to create 37 a <<struct reloc_cache_entry>> for each relocation 38 in a particular section, and fill in the right bits of the structures. 39 40@menu 41@* typedef arelent:: 42@* howto manager:: 43@end menu 44 45*/ 46 47/* DO compile in the reloc_code name table from libbfd.h. */ 48#define _BFD_MAKE_TABLE_bfd_reloc_code_real 49 50#include "bfd.h" 51#include "sysdep.h" 52#include "bfdlink.h" 53#include "libbfd.h" 54/* 55DOCDD 56INODE 57 typedef arelent, howto manager, Relocations, Relocations 58 59SUBSECTION 60 typedef arelent 61 62 This is the structure of a relocation entry: 63 64CODE_FRAGMENT 65. 66.typedef enum bfd_reloc_status 67.{ 68. {* No errors detected. *} 69. bfd_reloc_ok, 70. 71. {* The relocation was performed, but there was an overflow. *} 72. bfd_reloc_overflow, 73. 74. {* The address to relocate was not within the section supplied. *} 75. bfd_reloc_outofrange, 76. 77. {* Used by special functions. *} 78. bfd_reloc_continue, 79. 80. {* Unsupported relocation size requested. *} 81. bfd_reloc_notsupported, 82. 83. {* Unused. *} 84. bfd_reloc_other, 85. 86. {* The symbol to relocate against was undefined. *} 87. bfd_reloc_undefined, 88. 89. {* The relocation was performed, but may not be ok - presently 90. generated only when linking i960 coff files with i960 b.out 91. symbols. If this type is returned, the error_message argument 92. to bfd_perform_relocation will be set. *} 93. bfd_reloc_dangerous 94. } 95. bfd_reloc_status_type; 96. 97. 98.typedef struct reloc_cache_entry 99.{ 100. {* A pointer into the canonical table of pointers. *} 101. struct bfd_symbol **sym_ptr_ptr; 102. 103. {* offset in section. *} 104. bfd_size_type address; 105. 106. {* addend for relocation value. *} 107. bfd_vma addend; 108. 109. {* Pointer to how to perform the required relocation. *} 110. reloc_howto_type *howto; 111. 112.} 113.arelent; 114. 115*/ 116 117/* 118DESCRIPTION 119 120 Here is a description of each of the fields within an <<arelent>>: 121 122 o <<sym_ptr_ptr>> 123 124 The symbol table pointer points to a pointer to the symbol 125 associated with the relocation request. It is the pointer 126 into the table returned by the back end's 127 <<canonicalize_symtab>> action. @xref{Symbols}. The symbol is 128 referenced through a pointer to a pointer so that tools like 129 the linker can fix up all the symbols of the same name by 130 modifying only one pointer. The relocation routine looks in 131 the symbol and uses the base of the section the symbol is 132 attached to and the value of the symbol as the initial 133 relocation offset. If the symbol pointer is zero, then the 134 section provided is looked up. 135 136 o <<address>> 137 138 The <<address>> field gives the offset in bytes from the base of 139 the section data which owns the relocation record to the first 140 byte of relocatable information. The actual data relocated 141 will be relative to this point; for example, a relocation 142 type which modifies the bottom two bytes of a four byte word 143 would not touch the first byte pointed to in a big endian 144 world. 145 146 o <<addend>> 147 148 The <<addend>> is a value provided by the back end to be added (!) 149 to the relocation offset. Its interpretation is dependent upon 150 the howto. For example, on the 68k the code: 151 152| char foo[]; 153| main() 154| { 155| return foo[0x12345678]; 156| } 157 158 Could be compiled into: 159 160| linkw fp,#-4 161| moveb @@#12345678,d0 162| extbl d0 163| unlk fp 164| rts 165 166 This could create a reloc pointing to <<foo>>, but leave the 167 offset in the data, something like: 168 169|RELOCATION RECORDS FOR [.text]: 170|offset type value 171|00000006 32 _foo 172| 173|00000000 4e56 fffc ; linkw fp,#-4 174|00000004 1039 1234 5678 ; moveb @@#12345678,d0 175|0000000a 49c0 ; extbl d0 176|0000000c 4e5e ; unlk fp 177|0000000e 4e75 ; rts 178 179 Using coff and an 88k, some instructions don't have enough 180 space in them to represent the full address range, and 181 pointers have to be loaded in two parts. So you'd get something like: 182 183| or.u r13,r0,hi16(_foo+0x12345678) 184| ld.b r2,r13,lo16(_foo+0x12345678) 185| jmp r1 186 187 This should create two relocs, both pointing to <<_foo>>, and with 188 0x12340000 in their addend field. The data would consist of: 189 190|RELOCATION RECORDS FOR [.text]: 191|offset type value 192|00000002 HVRT16 _foo+0x12340000 193|00000006 LVRT16 _foo+0x12340000 194| 195|00000000 5da05678 ; or.u r13,r0,0x5678 196|00000004 1c4d5678 ; ld.b r2,r13,0x5678 197|00000008 f400c001 ; jmp r1 198 199 The relocation routine digs out the value from the data, adds 200 it to the addend to get the original offset, and then adds the 201 value of <<_foo>>. Note that all 32 bits have to be kept around 202 somewhere, to cope with carry from bit 15 to bit 16. 203 204 One further example is the sparc and the a.out format. The 205 sparc has a similar problem to the 88k, in that some 206 instructions don't have room for an entire offset, but on the 207 sparc the parts are created in odd sized lumps. The designers of 208 the a.out format chose to not use the data within the section 209 for storing part of the offset; all the offset is kept within 210 the reloc. Anything in the data should be ignored. 211 212| save %sp,-112,%sp 213| sethi %hi(_foo+0x12345678),%g2 214| ldsb [%g2+%lo(_foo+0x12345678)],%i0 215| ret 216| restore 217 218 Both relocs contain a pointer to <<foo>>, and the offsets 219 contain junk. 220 221|RELOCATION RECORDS FOR [.text]: 222|offset type value 223|00000004 HI22 _foo+0x12345678 224|00000008 LO10 _foo+0x12345678 225| 226|00000000 9de3bf90 ; save %sp,-112,%sp 227|00000004 05000000 ; sethi %hi(_foo+0),%g2 228|00000008 f048a000 ; ldsb [%g2+%lo(_foo+0)],%i0 229|0000000c 81c7e008 ; ret 230|00000010 81e80000 ; restore 231 232 o <<howto>> 233 234 The <<howto>> field can be imagined as a 235 relocation instruction. It is a pointer to a structure which 236 contains information on what to do with all of the other 237 information in the reloc record and data section. A back end 238 would normally have a relocation instruction set and turn 239 relocations into pointers to the correct structure on input - 240 but it would be possible to create each howto field on demand. 241 242*/ 243 244/* 245SUBSUBSECTION 246 <<enum complain_overflow>> 247 248 Indicates what sort of overflow checking should be done when 249 performing a relocation. 250 251CODE_FRAGMENT 252. 253.enum complain_overflow 254.{ 255. {* Do not complain on overflow. *} 256. complain_overflow_dont, 257. 258. {* Complain if the bitfield overflows, whether it is considered 259. as signed or unsigned. *} 260. complain_overflow_bitfield, 261. 262. {* Complain if the value overflows when considered as signed 263. number. *} 264. complain_overflow_signed, 265. 266. {* Complain if the value overflows when considered as an 267. unsigned number. *} 268. complain_overflow_unsigned 269.}; 270 271*/ 272 273/* 274SUBSUBSECTION 275 <<reloc_howto_type>> 276 277 The <<reloc_howto_type>> is a structure which contains all the 278 information that libbfd needs to know to tie up a back end's data. 279 280CODE_FRAGMENT 281.struct bfd_symbol; {* Forward declaration. *} 282. 283.struct reloc_howto_struct 284.{ 285. {* The type field has mainly a documentary use - the back end can 286. do what it wants with it, though normally the back end's 287. external idea of what a reloc number is stored 288. in this field. For example, a PC relative word relocation 289. in a coff environment has the type 023 - because that's 290. what the outside world calls a R_PCRWORD reloc. *} 291. unsigned int type; 292. 293. {* The value the final relocation is shifted right by. This drops 294. unwanted data from the relocation. *} 295. unsigned int rightshift; 296. 297. {* The size of the item to be relocated. This is *not* a 298. power-of-two measure. To get the number of bytes operated 299. on by a type of relocation, use bfd_get_reloc_size. *} 300. int size; 301. 302. {* The number of bits in the item to be relocated. This is used 303. when doing overflow checking. *} 304. unsigned int bitsize; 305. 306. {* Notes that the relocation is relative to the location in the 307. data section of the addend. The relocation function will 308. subtract from the relocation value the address of the location 309. being relocated. *} 310. bfd_boolean pc_relative; 311. 312. {* The bit position of the reloc value in the destination. 313. The relocated value is left shifted by this amount. *} 314. unsigned int bitpos; 315. 316. {* What type of overflow error should be checked for when 317. relocating. *} 318. enum complain_overflow complain_on_overflow; 319. 320. {* If this field is non null, then the supplied function is 321. called rather than the normal function. This allows really 322. strange relocation methods to be accommodated (e.g., i960 callj 323. instructions). *} 324. bfd_reloc_status_type (*special_function) 325. (bfd *, arelent *, struct bfd_symbol *, void *, asection *, 326. bfd *, char **); 327. 328. {* The textual name of the relocation type. *} 329. char *name; 330. 331. {* Some formats record a relocation addend in the section contents 332. rather than with the relocation. For ELF formats this is the 333. distinction between USE_REL and USE_RELA (though the code checks 334. for USE_REL == 1/0). The value of this field is TRUE if the 335. addend is recorded with the section contents; when performing a 336. partial link (ld -r) the section contents (the data) will be 337. modified. The value of this field is FALSE if addends are 338. recorded with the relocation (in arelent.addend); when performing 339. a partial link the relocation will be modified. 340. All relocations for all ELF USE_RELA targets should set this field 341. to FALSE (values of TRUE should be looked on with suspicion). 342. However, the converse is not true: not all relocations of all ELF 343. USE_REL targets set this field to TRUE. Why this is so is peculiar 344. to each particular target. For relocs that aren't used in partial 345. links (e.g. GOT stuff) it doesn't matter what this is set to. *} 346. bfd_boolean partial_inplace; 347. 348. {* src_mask selects the part of the instruction (or data) to be used 349. in the relocation sum. If the target relocations don't have an 350. addend in the reloc, eg. ELF USE_REL, src_mask will normally equal 351. dst_mask to extract the addend from the section contents. If 352. relocations do have an addend in the reloc, eg. ELF USE_RELA, this 353. field should be zero. Non-zero values for ELF USE_RELA targets are 354. bogus as in those cases the value in the dst_mask part of the 355. section contents should be treated as garbage. *} 356. bfd_vma src_mask; 357. 358. {* dst_mask selects which parts of the instruction (or data) are 359. replaced with a relocated value. *} 360. bfd_vma dst_mask; 361. 362. {* When some formats create PC relative instructions, they leave 363. the value of the pc of the place being relocated in the offset 364. slot of the instruction, so that a PC relative relocation can 365. be made just by adding in an ordinary offset (e.g., sun3 a.out). 366. Some formats leave the displacement part of an instruction 367. empty (e.g., m88k bcs); this flag signals the fact. *} 368. bfd_boolean pcrel_offset; 369.}; 370. 371*/ 372 373/* 374FUNCTION 375 The HOWTO Macro 376 377DESCRIPTION 378 The HOWTO define is horrible and will go away. 379 380.#define HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \ 381. { (unsigned) C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC } 382 383DESCRIPTION 384 And will be replaced with the totally magic way. But for the 385 moment, we are compatible, so do it this way. 386 387.#define NEWHOWTO(FUNCTION, NAME, SIZE, REL, IN) \ 388. HOWTO (0, 0, SIZE, 0, REL, 0, complain_overflow_dont, FUNCTION, \ 389. NAME, FALSE, 0, 0, IN) 390. 391 392DESCRIPTION 393 This is used to fill in an empty howto entry in an array. 394 395.#define EMPTY_HOWTO(C) \ 396. HOWTO ((C), 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, \ 397. NULL, FALSE, 0, 0, FALSE) 398. 399 400DESCRIPTION 401 Helper routine to turn a symbol into a relocation value. 402 403.#define HOWTO_PREPARE(relocation, symbol) \ 404. { \ 405. if (symbol != NULL) \ 406. { \ 407. if (bfd_is_com_section (symbol->section)) \ 408. { \ 409. relocation = 0; \ 410. } \ 411. else \ 412. { \ 413. relocation = symbol->value; \ 414. } \ 415. } \ 416. } 417. 418*/ 419 420/* 421FUNCTION 422 bfd_get_reloc_size 423 424SYNOPSIS 425 unsigned int bfd_get_reloc_size (reloc_howto_type *); 426 427DESCRIPTION 428 For a reloc_howto_type that operates on a fixed number of bytes, 429 this returns the number of bytes operated on. 430 */ 431 432unsigned int 433bfd_get_reloc_size (reloc_howto_type *howto) 434{ 435 switch (howto->size) 436 { 437 case 0: return 1; 438 case 1: return 2; 439 case 2: return 4; 440 case 3: return 0; 441 case 4: return 8; 442 case 8: return 16; 443 case -2: return 4; 444 default: abort (); 445 } 446} 447 448/* 449TYPEDEF 450 arelent_chain 451 452DESCRIPTION 453 454 How relocs are tied together in an <<asection>>: 455 456.typedef struct relent_chain 457.{ 458. arelent relent; 459. struct relent_chain *next; 460.} 461.arelent_chain; 462. 463*/ 464 465/* N_ONES produces N one bits, without overflowing machine arithmetic. */ 466#define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1) 467 468/* 469FUNCTION 470 bfd_check_overflow 471 472SYNOPSIS 473 bfd_reloc_status_type bfd_check_overflow 474 (enum complain_overflow how, 475 unsigned int bitsize, 476 unsigned int rightshift, 477 unsigned int addrsize, 478 bfd_vma relocation); 479 480DESCRIPTION 481 Perform overflow checking on @var{relocation} which has 482 @var{bitsize} significant bits and will be shifted right by 483 @var{rightshift} bits, on a machine with addresses containing 484 @var{addrsize} significant bits. The result is either of 485 @code{bfd_reloc_ok} or @code{bfd_reloc_overflow}. 486 487*/ 488 489bfd_reloc_status_type 490bfd_check_overflow (enum complain_overflow how, 491 unsigned int bitsize, 492 unsigned int rightshift, 493 unsigned int addrsize, 494 bfd_vma relocation) 495{ 496 bfd_vma fieldmask, addrmask, signmask, ss, a; 497 bfd_reloc_status_type flag = bfd_reloc_ok; 498 499 a = relocation; 500 501 /* Note: BITSIZE should always be <= ADDRSIZE, but in case it's not, 502 we'll be permissive: extra bits in the field mask will 503 automatically extend the address mask for purposes of the 504 overflow check. */ 505 fieldmask = N_ONES (bitsize); 506 addrmask = N_ONES (addrsize) | fieldmask; 507 508 switch (how) 509 { 510 case complain_overflow_dont: 511 break; 512 513 case complain_overflow_signed: 514 /* If any sign bits are set, all sign bits must be set. That 515 is, A must be a valid negative address after shifting. */ 516 a = (a & addrmask) >> rightshift; 517 signmask = ~ (fieldmask >> 1); 518 ss = a & signmask; 519 if (ss != 0 && ss != ((addrmask >> rightshift) & signmask)) 520 flag = bfd_reloc_overflow; 521 break; 522 523 case complain_overflow_unsigned: 524 /* We have an overflow if the address does not fit in the field. */ 525 a = (a & addrmask) >> rightshift; 526 if ((a & ~ fieldmask) != 0) 527 flag = bfd_reloc_overflow; 528 break; 529 530 case complain_overflow_bitfield: 531 /* Bitfields are sometimes signed, sometimes unsigned. We 532 explicitly allow an address wrap too, which means a bitfield 533 of n bits is allowed to store -2**n to 2**n-1. Thus overflow 534 if the value has some, but not all, bits set outside the 535 field. */ 536 a >>= rightshift; 537 ss = a & ~ fieldmask; 538 if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & ~ fieldmask)) 539 flag = bfd_reloc_overflow; 540 break; 541 542 default: 543 abort (); 544 } 545 546 return flag; 547} 548 549/* 550FUNCTION 551 bfd_perform_relocation 552 553SYNOPSIS 554 bfd_reloc_status_type bfd_perform_relocation 555 (bfd *abfd, 556 arelent *reloc_entry, 557 void *data, 558 asection *input_section, 559 bfd *output_bfd, 560 char **error_message); 561 562DESCRIPTION 563 If @var{output_bfd} is supplied to this function, the 564 generated image will be relocatable; the relocations are 565 copied to the output file after they have been changed to 566 reflect the new state of the world. There are two ways of 567 reflecting the results of partial linkage in an output file: 568 by modifying the output data in place, and by modifying the 569 relocation record. Some native formats (e.g., basic a.out and 570 basic coff) have no way of specifying an addend in the 571 relocation type, so the addend has to go in the output data. 572 This is no big deal since in these formats the output data 573 slot will always be big enough for the addend. Complex reloc 574 types with addends were invented to solve just this problem. 575 The @var{error_message} argument is set to an error message if 576 this return @code{bfd_reloc_dangerous}. 577 578*/ 579 580bfd_reloc_status_type 581bfd_perform_relocation (bfd *abfd, 582 arelent *reloc_entry, 583 void *data, 584 asection *input_section, 585 bfd *output_bfd, 586 char **error_message) 587{ 588 bfd_vma relocation; 589 bfd_reloc_status_type flag = bfd_reloc_ok; 590 bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd); 591 bfd_vma output_base = 0; 592 reloc_howto_type *howto = reloc_entry->howto; 593 asection *reloc_target_output_section; 594 asymbol *symbol; 595 596 symbol = *(reloc_entry->sym_ptr_ptr); 597 if (bfd_is_abs_section (symbol->section) 598 && output_bfd != NULL) 599 { 600 reloc_entry->address += input_section->output_offset; 601 return bfd_reloc_ok; 602 } 603 604 /* If we are not producing relocatable output, return an error if 605 the symbol is not defined. An undefined weak symbol is 606 considered to have a value of zero (SVR4 ABI, p. 4-27). */ 607 if (bfd_is_und_section (symbol->section) 608 && (symbol->flags & BSF_WEAK) == 0 609 && output_bfd == NULL) 610 flag = bfd_reloc_undefined; 611 612 /* If there is a function supplied to handle this relocation type, 613 call it. It'll return `bfd_reloc_continue' if further processing 614 can be done. */ 615 if (howto->special_function) 616 { 617 bfd_reloc_status_type cont; 618 cont = howto->special_function (abfd, reloc_entry, symbol, data, 619 input_section, output_bfd, 620 error_message); 621 if (cont != bfd_reloc_continue) 622 return cont; 623 } 624 625 /* Is the address of the relocation really within the section? */ 626 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) 627 return bfd_reloc_outofrange; 628 629 /* Work out which section the relocation is targeted at and the 630 initial relocation command value. */ 631 632 /* Get symbol value. (Common symbols are special.) */ 633 if (bfd_is_com_section (symbol->section)) 634 relocation = 0; 635 else 636 relocation = symbol->value; 637 638 reloc_target_output_section = symbol->section->output_section; 639 640 /* Convert input-section-relative symbol value to absolute. */ 641 if ((output_bfd && ! howto->partial_inplace) 642 || reloc_target_output_section == NULL) 643 output_base = 0; 644 else 645 output_base = reloc_target_output_section->vma; 646 647 relocation += output_base + symbol->section->output_offset; 648 649 /* Add in supplied addend. */ 650 relocation += reloc_entry->addend; 651 652 /* Here the variable relocation holds the final address of the 653 symbol we are relocating against, plus any addend. */ 654 655 if (howto->pc_relative) 656 { 657 /* This is a PC relative relocation. We want to set RELOCATION 658 to the distance between the address of the symbol and the 659 location. RELOCATION is already the address of the symbol. 660 661 We start by subtracting the address of the section containing 662 the location. 663 664 If pcrel_offset is set, we must further subtract the position 665 of the location within the section. Some targets arrange for 666 the addend to be the negative of the position of the location 667 within the section; for example, i386-aout does this. For 668 i386-aout, pcrel_offset is FALSE. Some other targets do not 669 include the position of the location; for example, m88kbcs, 670 or ELF. For those targets, pcrel_offset is TRUE. 671 672 If we are producing relocatable output, then we must ensure 673 that this reloc will be correctly computed when the final 674 relocation is done. If pcrel_offset is FALSE we want to wind 675 up with the negative of the location within the section, 676 which means we must adjust the existing addend by the change 677 in the location within the section. If pcrel_offset is TRUE 678 we do not want to adjust the existing addend at all. 679 680 FIXME: This seems logical to me, but for the case of 681 producing relocatable output it is not what the code 682 actually does. I don't want to change it, because it seems 683 far too likely that something will break. */ 684 685 relocation -= 686 input_section->output_section->vma + input_section->output_offset; 687 688 if (howto->pcrel_offset) 689 relocation -= reloc_entry->address; 690 } 691 692 if (output_bfd != NULL) 693 { 694 if (! howto->partial_inplace) 695 { 696 /* This is a partial relocation, and we want to apply the relocation 697 to the reloc entry rather than the raw data. Modify the reloc 698 inplace to reflect what we now know. */ 699 reloc_entry->addend = relocation; 700 reloc_entry->address += input_section->output_offset; 701 return flag; 702 } 703 else 704 { 705 /* This is a partial relocation, but inplace, so modify the 706 reloc record a bit. 707 708 If we've relocated with a symbol with a section, change 709 into a ref to the section belonging to the symbol. */ 710 711 reloc_entry->address += input_section->output_offset; 712 713 /* WTF?? */ 714 if (abfd->xvec->flavour == bfd_target_coff_flavour 715 && strcmp (abfd->xvec->name, "coff-Intel-little") != 0 716 && strcmp (abfd->xvec->name, "coff-Intel-big") != 0) 717 { 718#if 1 719 /* For m68k-coff, the addend was being subtracted twice during 720 relocation with -r. Removing the line below this comment 721 fixes that problem; see PR 2953. 722 723However, Ian wrote the following, regarding removing the line below, 724which explains why it is still enabled: --djm 725 726If you put a patch like that into BFD you need to check all the COFF 727linkers. I am fairly certain that patch will break coff-i386 (e.g., 728SCO); see coff_i386_reloc in coff-i386.c where I worked around the 729problem in a different way. There may very well be a reason that the 730code works as it does. 731 732Hmmm. The first obvious point is that bfd_perform_relocation should 733not have any tests that depend upon the flavour. It's seem like 734entirely the wrong place for such a thing. The second obvious point 735is that the current code ignores the reloc addend when producing 736relocatable output for COFF. That's peculiar. In fact, I really 737have no idea what the point of the line you want to remove is. 738 739A typical COFF reloc subtracts the old value of the symbol and adds in 740the new value to the location in the object file (if it's a pc 741relative reloc it adds the difference between the symbol value and the 742location). When relocating we need to preserve that property. 743 744BFD handles this by setting the addend to the negative of the old 745value of the symbol. Unfortunately it handles common symbols in a 746non-standard way (it doesn't subtract the old value) but that's a 747different story (we can't change it without losing backward 748compatibility with old object files) (coff-i386 does subtract the old 749value, to be compatible with existing coff-i386 targets, like SCO). 750 751So everything works fine when not producing relocatable output. When 752we are producing relocatable output, logically we should do exactly 753what we do when not producing relocatable output. Therefore, your 754patch is correct. In fact, it should probably always just set 755reloc_entry->addend to 0 for all cases, since it is, in fact, going to 756add the value into the object file. This won't hurt the COFF code, 757which doesn't use the addend; I'm not sure what it will do to other 758formats (the thing to check for would be whether any formats both use 759the addend and set partial_inplace). 760 761When I wanted to make coff-i386 produce relocatable output, I ran 762into the problem that you are running into: I wanted to remove that 763line. Rather than risk it, I made the coff-i386 relocs use a special 764function; it's coff_i386_reloc in coff-i386.c. The function 765specifically adds the addend field into the object file, knowing that 766bfd_perform_relocation is not going to. If you remove that line, then 767coff-i386.c will wind up adding the addend field in twice. It's 768trivial to fix; it just needs to be done. 769 770The problem with removing the line is just that it may break some 771working code. With BFD it's hard to be sure of anything. The right 772way to deal with this is simply to build and test at least all the 773supported COFF targets. It should be straightforward if time and disk 774space consuming. For each target: 775 1) build the linker 776 2) generate some executable, and link it using -r (I would 777 probably use paranoia.o and link against newlib/libc.a, which 778 for all the supported targets would be available in 779 /usr/cygnus/progressive/H-host/target/lib/libc.a). 780 3) make the change to reloc.c 781 4) rebuild the linker 782 5) repeat step 2 783 6) if the resulting object files are the same, you have at least 784 made it no worse 785 7) if they are different you have to figure out which version is 786 right 787*/ 788 relocation -= reloc_entry->addend; 789#endif 790 reloc_entry->addend = 0; 791 } 792 else 793 { 794 reloc_entry->addend = relocation; 795 } 796 } 797 } 798 else 799 { 800 reloc_entry->addend = 0; 801 } 802 803 /* FIXME: This overflow checking is incomplete, because the value 804 might have overflowed before we get here. For a correct check we 805 need to compute the value in a size larger than bitsize, but we 806 can't reasonably do that for a reloc the same size as a host 807 machine word. 808 FIXME: We should also do overflow checking on the result after 809 adding in the value contained in the object file. */ 810 if (howto->complain_on_overflow != complain_overflow_dont 811 && flag == bfd_reloc_ok) 812 flag = bfd_check_overflow (howto->complain_on_overflow, 813 howto->bitsize, 814 howto->rightshift, 815 bfd_arch_bits_per_address (abfd), 816 relocation); 817 818 /* Either we are relocating all the way, or we don't want to apply 819 the relocation to the reloc entry (probably because there isn't 820 any room in the output format to describe addends to relocs). */ 821 822 /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler 823 (OSF version 1.3, compiler version 3.11). It miscompiles the 824 following program: 825 826 struct str 827 { 828 unsigned int i0; 829 } s = { 0 }; 830 831 int 832 main () 833 { 834 unsigned long x; 835 836 x = 0x100000000; 837 x <<= (unsigned long) s.i0; 838 if (x == 0) 839 printf ("failed\n"); 840 else 841 printf ("succeeded (%lx)\n", x); 842 } 843 */ 844 845 relocation >>= (bfd_vma) howto->rightshift; 846 847 /* Shift everything up to where it's going to be used. */ 848 relocation <<= (bfd_vma) howto->bitpos; 849 850 /* Wait for the day when all have the mask in them. */ 851 852 /* What we do: 853 i instruction to be left alone 854 o offset within instruction 855 r relocation offset to apply 856 S src mask 857 D dst mask 858 N ~dst mask 859 A part 1 860 B part 2 861 R result 862 863 Do this: 864 (( i i i i i o o o o o from bfd_get<size> 865 and S S S S S) to get the size offset we want 866 + r r r r r r r r r r) to get the final value to place 867 and D D D D D to chop to right size 868 ----------------------- 869 = A A A A A 870 And this: 871 ( i i i i i o o o o o from bfd_get<size> 872 and N N N N N ) get instruction 873 ----------------------- 874 = B B B B B 875 876 And then: 877 ( B B B B B 878 or A A A A A) 879 ----------------------- 880 = R R R R R R R R R R put into bfd_put<size> 881 */ 882 883#define DOIT(x) \ 884 x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask)) 885 886 switch (howto->size) 887 { 888 case 0: 889 { 890 char x = bfd_get_8 (abfd, (char *) data + octets); 891 DOIT (x); 892 bfd_put_8 (abfd, x, (unsigned char *) data + octets); 893 } 894 break; 895 896 case 1: 897 { 898 short x = bfd_get_16 (abfd, (bfd_byte *) data + octets); 899 DOIT (x); 900 bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + octets); 901 } 902 break; 903 case 2: 904 { 905 long x = bfd_get_32 (abfd, (bfd_byte *) data + octets); 906 DOIT (x); 907 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets); 908 } 909 break; 910 case -2: 911 { 912 long x = bfd_get_32 (abfd, (bfd_byte *) data + octets); 913 relocation = -relocation; 914 DOIT (x); 915 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets); 916 } 917 break; 918 919 case -1: 920 { 921 long x = bfd_get_16 (abfd, (bfd_byte *) data + octets); 922 relocation = -relocation; 923 DOIT (x); 924 bfd_put_16 (abfd, (bfd_vma) x, (bfd_byte *) data + octets); 925 } 926 break; 927 928 case 3: 929 /* Do nothing */ 930 break; 931 932 case 4: 933#ifdef BFD64 934 { 935 bfd_vma x = bfd_get_64 (abfd, (bfd_byte *) data + octets); 936 DOIT (x); 937 bfd_put_64 (abfd, x, (bfd_byte *) data + octets); 938 } 939#else 940 abort (); 941#endif 942 break; 943 default: 944 return bfd_reloc_other; 945 } 946 947 return flag; 948} 949 950/* 951FUNCTION 952 bfd_install_relocation 953 954SYNOPSIS 955 bfd_reloc_status_type bfd_install_relocation 956 (bfd *abfd, 957 arelent *reloc_entry, 958 void *data, bfd_vma data_start, 959 asection *input_section, 960 char **error_message); 961 962DESCRIPTION 963 This looks remarkably like <<bfd_perform_relocation>>, except it 964 does not expect that the section contents have been filled in. 965 I.e., it's suitable for use when creating, rather than applying 966 a relocation. 967 968 For now, this function should be considered reserved for the 969 assembler. 970*/ 971 972bfd_reloc_status_type 973bfd_install_relocation (bfd *abfd, 974 arelent *reloc_entry, 975 void *data_start, 976 bfd_vma data_start_offset, 977 asection *input_section, 978 char **error_message) 979{ 980 bfd_vma relocation; 981 bfd_reloc_status_type flag = bfd_reloc_ok; 982 bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd); 983 bfd_vma output_base = 0; 984 reloc_howto_type *howto = reloc_entry->howto; 985 asection *reloc_target_output_section; 986 asymbol *symbol; 987 bfd_byte *data; 988 989 symbol = *(reloc_entry->sym_ptr_ptr); 990 if (bfd_is_abs_section (symbol->section)) 991 { 992 reloc_entry->address += input_section->output_offset; 993 return bfd_reloc_ok; 994 } 995 996 /* If there is a function supplied to handle this relocation type, 997 call it. It'll return `bfd_reloc_continue' if further processing 998 can be done. */ 999 if (howto->special_function) 1000 { 1001 bfd_reloc_status_type cont; 1002 1003 /* XXX - The special_function calls haven't been fixed up to deal 1004 with creating new relocations and section contents. */ 1005 cont = howto->special_function (abfd, reloc_entry, symbol, 1006 /* XXX - Non-portable! */ 1007 ((bfd_byte *) data_start 1008 - data_start_offset), 1009 input_section, abfd, error_message); 1010 if (cont != bfd_reloc_continue) 1011 return cont; 1012 } 1013 1014 /* Is the address of the relocation really within the section? */ 1015 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) 1016 return bfd_reloc_outofrange; 1017 1018 /* Work out which section the relocation is targeted at and the 1019 initial relocation command value. */ 1020 1021 /* Get symbol value. (Common symbols are special.) */ 1022 if (bfd_is_com_section (symbol->section)) 1023 relocation = 0; 1024 else 1025 relocation = symbol->value; 1026 1027 reloc_target_output_section = symbol->section->output_section; 1028 1029 /* Convert input-section-relative symbol value to absolute. */ 1030 if (! howto->partial_inplace) 1031 output_base = 0; 1032 else 1033 output_base = reloc_target_output_section->vma; 1034 1035 relocation += output_base + symbol->section->output_offset; 1036 1037 /* Add in supplied addend. */ 1038 relocation += reloc_entry->addend; 1039 1040 /* Here the variable relocation holds the final address of the 1041 symbol we are relocating against, plus any addend. */ 1042 1043 if (howto->pc_relative) 1044 { 1045 /* This is a PC relative relocation. We want to set RELOCATION 1046 to the distance between the address of the symbol and the 1047 location. RELOCATION is already the address of the symbol. 1048 1049 We start by subtracting the address of the section containing 1050 the location. 1051 1052 If pcrel_offset is set, we must further subtract the position 1053 of the location within the section. Some targets arrange for 1054 the addend to be the negative of the position of the location 1055 within the section; for example, i386-aout does this. For 1056 i386-aout, pcrel_offset is FALSE. Some other targets do not 1057 include the position of the location; for example, m88kbcs, 1058 or ELF. For those targets, pcrel_offset is TRUE. 1059 1060 If we are producing relocatable output, then we must ensure 1061 that this reloc will be correctly computed when the final 1062 relocation is done. If pcrel_offset is FALSE we want to wind 1063 up with the negative of the location within the section, 1064 which means we must adjust the existing addend by the change 1065 in the location within the section. If pcrel_offset is TRUE 1066 we do not want to adjust the existing addend at all. 1067 1068 FIXME: This seems logical to me, but for the case of 1069 producing relocatable output it is not what the code 1070 actually does. I don't want to change it, because it seems 1071 far too likely that something will break. */ 1072 1073 relocation -= 1074 input_section->output_section->vma + input_section->output_offset; 1075 1076 if (howto->pcrel_offset && howto->partial_inplace) 1077 relocation -= reloc_entry->address; 1078 } 1079 1080 if (! howto->partial_inplace) 1081 { 1082 /* This is a partial relocation, and we want to apply the relocation 1083 to the reloc entry rather than the raw data. Modify the reloc 1084 inplace to reflect what we now know. */ 1085 reloc_entry->addend = relocation; 1086 reloc_entry->address += input_section->output_offset; 1087 return flag; 1088 } 1089 else 1090 { 1091 /* This is a partial relocation, but inplace, so modify the 1092 reloc record a bit. 1093 1094 If we've relocated with a symbol with a section, change 1095 into a ref to the section belonging to the symbol. */ 1096 reloc_entry->address += input_section->output_offset; 1097 1098 /* WTF?? */ 1099 if (abfd->xvec->flavour == bfd_target_coff_flavour 1100 && strcmp (abfd->xvec->name, "coff-Intel-little") != 0 1101 && strcmp (abfd->xvec->name, "coff-Intel-big") != 0) 1102 { 1103#if 1 1104/* For m68k-coff, the addend was being subtracted twice during 1105 relocation with -r. Removing the line below this comment 1106 fixes that problem; see PR 2953. 1107 1108However, Ian wrote the following, regarding removing the line below, 1109which explains why it is still enabled: --djm 1110 1111If you put a patch like that into BFD you need to check all the COFF 1112linkers. I am fairly certain that patch will break coff-i386 (e.g., 1113SCO); see coff_i386_reloc in coff-i386.c where I worked around the 1114problem in a different way. There may very well be a reason that the 1115code works as it does. 1116 1117Hmmm. The first obvious point is that bfd_install_relocation should 1118not have any tests that depend upon the flavour. It's seem like 1119entirely the wrong place for such a thing. The second obvious point 1120is that the current code ignores the reloc addend when producing 1121relocatable output for COFF. That's peculiar. In fact, I really 1122have no idea what the point of the line you want to remove is. 1123 1124A typical COFF reloc subtracts the old value of the symbol and adds in 1125the new value to the location in the object file (if it's a pc 1126relative reloc it adds the difference between the symbol value and the 1127location). When relocating we need to preserve that property. 1128 1129BFD handles this by setting the addend to the negative of the old 1130value of the symbol. Unfortunately it handles common symbols in a 1131non-standard way (it doesn't subtract the old value) but that's a 1132different story (we can't change it without losing backward 1133compatibility with old object files) (coff-i386 does subtract the old 1134value, to be compatible with existing coff-i386 targets, like SCO). 1135 1136So everything works fine when not producing relocatable output. When 1137we are producing relocatable output, logically we should do exactly 1138what we do when not producing relocatable output. Therefore, your 1139patch is correct. In fact, it should probably always just set 1140reloc_entry->addend to 0 for all cases, since it is, in fact, going to 1141add the value into the object file. This won't hurt the COFF code, 1142which doesn't use the addend; I'm not sure what it will do to other 1143formats (the thing to check for would be whether any formats both use 1144the addend and set partial_inplace). 1145 1146When I wanted to make coff-i386 produce relocatable output, I ran 1147into the problem that you are running into: I wanted to remove that 1148line. Rather than risk it, I made the coff-i386 relocs use a special 1149function; it's coff_i386_reloc in coff-i386.c. The function 1150specifically adds the addend field into the object file, knowing that 1151bfd_install_relocation is not going to. If you remove that line, then 1152coff-i386.c will wind up adding the addend field in twice. It's 1153trivial to fix; it just needs to be done. 1154 1155The problem with removing the line is just that it may break some 1156working code. With BFD it's hard to be sure of anything. The right 1157way to deal with this is simply to build and test at least all the 1158supported COFF targets. It should be straightforward if time and disk 1159space consuming. For each target: 1160 1) build the linker 1161 2) generate some executable, and link it using -r (I would 1162 probably use paranoia.o and link against newlib/libc.a, which 1163 for all the supported targets would be available in 1164 /usr/cygnus/progressive/H-host/target/lib/libc.a). 1165 3) make the change to reloc.c 1166 4) rebuild the linker 1167 5) repeat step 2 1168 6) if the resulting object files are the same, you have at least 1169 made it no worse 1170 7) if they are different you have to figure out which version is 1171 right. */ 1172 relocation -= reloc_entry->addend; 1173#endif 1174 reloc_entry->addend = 0; 1175 } 1176 else 1177 { 1178 reloc_entry->addend = relocation; 1179 } 1180 } 1181 1182 /* FIXME: This overflow checking is incomplete, because the value 1183 might have overflowed before we get here. For a correct check we 1184 need to compute the value in a size larger than bitsize, but we 1185 can't reasonably do that for a reloc the same size as a host 1186 machine word. 1187 FIXME: We should also do overflow checking on the result after 1188 adding in the value contained in the object file. */ 1189 if (howto->complain_on_overflow != complain_overflow_dont) 1190 flag = bfd_check_overflow (howto->complain_on_overflow, 1191 howto->bitsize, 1192 howto->rightshift, 1193 bfd_arch_bits_per_address (abfd), 1194 relocation); 1195 1196 /* Either we are relocating all the way, or we don't want to apply 1197 the relocation to the reloc entry (probably because there isn't 1198 any room in the output format to describe addends to relocs). */ 1199 1200 /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler 1201 (OSF version 1.3, compiler version 3.11). It miscompiles the 1202 following program: 1203 1204 struct str 1205 { 1206 unsigned int i0; 1207 } s = { 0 }; 1208 1209 int 1210 main () 1211 { 1212 unsigned long x; 1213 1214 x = 0x100000000; 1215 x <<= (unsigned long) s.i0; 1216 if (x == 0) 1217 printf ("failed\n"); 1218 else 1219 printf ("succeeded (%lx)\n", x); 1220 } 1221 */ 1222 1223 relocation >>= (bfd_vma) howto->rightshift; 1224 1225 /* Shift everything up to where it's going to be used. */ 1226 relocation <<= (bfd_vma) howto->bitpos; 1227 1228 /* Wait for the day when all have the mask in them. */ 1229 1230 /* What we do: 1231 i instruction to be left alone 1232 o offset within instruction 1233 r relocation offset to apply 1234 S src mask 1235 D dst mask 1236 N ~dst mask 1237 A part 1 1238 B part 2 1239 R result 1240 1241 Do this: 1242 (( i i i i i o o o o o from bfd_get<size> 1243 and S S S S S) to get the size offset we want 1244 + r r r r r r r r r r) to get the final value to place 1245 and D D D D D to chop to right size 1246 ----------------------- 1247 = A A A A A 1248 And this: 1249 ( i i i i i o o o o o from bfd_get<size> 1250 and N N N N N ) get instruction 1251 ----------------------- 1252 = B B B B B 1253 1254 And then: 1255 ( B B B B B 1256 or A A A A A) 1257 ----------------------- 1258 = R R R R R R R R R R put into bfd_put<size> 1259 */ 1260 1261#define DOIT(x) \ 1262 x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask)) 1263 1264 data = (bfd_byte *) data_start + (octets - data_start_offset); 1265 1266 switch (howto->size) 1267 { 1268 case 0: 1269 { 1270 char x = bfd_get_8 (abfd, data); 1271 DOIT (x); 1272 bfd_put_8 (abfd, x, data); 1273 } 1274 break; 1275 1276 case 1: 1277 { 1278 short x = bfd_get_16 (abfd, data); 1279 DOIT (x); 1280 bfd_put_16 (abfd, (bfd_vma) x, data); 1281 } 1282 break; 1283 case 2: 1284 { 1285 long x = bfd_get_32 (abfd, data); 1286 DOIT (x); 1287 bfd_put_32 (abfd, (bfd_vma) x, data); 1288 } 1289 break; 1290 case -2: 1291 { 1292 long x = bfd_get_32 (abfd, data); 1293 relocation = -relocation; 1294 DOIT (x); 1295 bfd_put_32 (abfd, (bfd_vma) x, data); 1296 } 1297 break; 1298 1299 case 3: 1300 /* Do nothing */ 1301 break; 1302 1303 case 4: 1304 { 1305 bfd_vma x = bfd_get_64 (abfd, data); 1306 DOIT (x); 1307 bfd_put_64 (abfd, x, data); 1308 } 1309 break; 1310 default: 1311 return bfd_reloc_other; 1312 } 1313 1314 return flag; 1315} 1316 1317/* This relocation routine is used by some of the backend linkers. 1318 They do not construct asymbol or arelent structures, so there is no 1319 reason for them to use bfd_perform_relocation. Also, 1320 bfd_perform_relocation is so hacked up it is easier to write a new 1321 function than to try to deal with it. 1322 1323 This routine does a final relocation. Whether it is useful for a 1324 relocatable link depends upon how the object format defines 1325 relocations. 1326 1327 FIXME: This routine ignores any special_function in the HOWTO, 1328 since the existing special_function values have been written for 1329 bfd_perform_relocation. 1330 1331 HOWTO is the reloc howto information. 1332 INPUT_BFD is the BFD which the reloc applies to. 1333 INPUT_SECTION is the section which the reloc applies to. 1334 CONTENTS is the contents of the section. 1335 ADDRESS is the address of the reloc within INPUT_SECTION. 1336 VALUE is the value of the symbol the reloc refers to. 1337 ADDEND is the addend of the reloc. */ 1338 1339bfd_reloc_status_type 1340_bfd_final_link_relocate (reloc_howto_type *howto, 1341 bfd *input_bfd, 1342 asection *input_section, 1343 bfd_byte *contents, 1344 bfd_vma address, 1345 bfd_vma value, 1346 bfd_vma addend) 1347{ 1348 bfd_vma relocation; 1349 1350 /* Sanity check the address. */ 1351 if (address > bfd_get_section_limit (input_bfd, input_section)) 1352 return bfd_reloc_outofrange; 1353 1354 /* This function assumes that we are dealing with a basic relocation 1355 against a symbol. We want to compute the value of the symbol to 1356 relocate to. This is just VALUE, the value of the symbol, plus 1357 ADDEND, any addend associated with the reloc. */ 1358 relocation = value + addend; 1359 1360 /* If the relocation is PC relative, we want to set RELOCATION to 1361 the distance between the symbol (currently in RELOCATION) and the 1362 location we are relocating. Some targets (e.g., i386-aout) 1363 arrange for the contents of the section to be the negative of the 1364 offset of the location within the section; for such targets 1365 pcrel_offset is FALSE. Other targets (e.g., m88kbcs or ELF) 1366 simply leave the contents of the section as zero; for such 1367 targets pcrel_offset is TRUE. If pcrel_offset is FALSE we do not 1368 need to subtract out the offset of the location within the 1369 section (which is just ADDRESS). */ 1370 if (howto->pc_relative) 1371 { 1372 relocation -= (input_section->output_section->vma 1373 + input_section->output_offset); 1374 if (howto->pcrel_offset) 1375 relocation -= address; 1376 } 1377 1378 return _bfd_relocate_contents (howto, input_bfd, relocation, 1379 contents + address); 1380} 1381 1382/* Relocate a given location using a given value and howto. */ 1383 1384bfd_reloc_status_type 1385_bfd_relocate_contents (reloc_howto_type *howto, 1386 bfd *input_bfd, 1387 bfd_vma relocation, 1388 bfd_byte *location) 1389{ 1390 int size; 1391 bfd_vma x = 0; 1392 bfd_reloc_status_type flag; 1393 unsigned int rightshift = howto->rightshift; 1394 unsigned int bitpos = howto->bitpos; 1395 1396 /* If the size is negative, negate RELOCATION. This isn't very 1397 general. */ 1398 if (howto->size < 0) 1399 relocation = -relocation; 1400 1401 /* Get the value we are going to relocate. */ 1402 size = bfd_get_reloc_size (howto); 1403 switch (size) 1404 { 1405 default: 1406 case 0: 1407 abort (); 1408 case 1: 1409 x = bfd_get_8 (input_bfd, location); 1410 break; 1411 case 2: 1412 x = bfd_get_16 (input_bfd, location); 1413 break; 1414 case 4: 1415 x = bfd_get_32 (input_bfd, location); 1416 break; 1417 case 8: 1418#ifdef BFD64 1419 x = bfd_get_64 (input_bfd, location); 1420#else 1421 abort (); 1422#endif 1423 break; 1424 } 1425 1426 /* Check for overflow. FIXME: We may drop bits during the addition 1427 which we don't check for. We must either check at every single 1428 operation, which would be tedious, or we must do the computations 1429 in a type larger than bfd_vma, which would be inefficient. */ 1430 flag = bfd_reloc_ok; 1431 if (howto->complain_on_overflow != complain_overflow_dont) 1432 { 1433 bfd_vma addrmask, fieldmask, signmask, ss; 1434 bfd_vma a, b, sum; 1435 1436 /* Get the values to be added together. For signed and unsigned 1437 relocations, we assume that all values should be truncated to 1438 the size of an address. For bitfields, all the bits matter. 1439 See also bfd_check_overflow. */ 1440 fieldmask = N_ONES (howto->bitsize); 1441 addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask; 1442 a = relocation; 1443 b = x & howto->src_mask; 1444 1445 switch (howto->complain_on_overflow) 1446 { 1447 case complain_overflow_signed: 1448 a = (a & addrmask) >> rightshift; 1449 1450 /* If any sign bits are set, all sign bits must be set. 1451 That is, A must be a valid negative address after 1452 shifting. */ 1453 signmask = ~ (fieldmask >> 1); 1454 ss = a & signmask; 1455 if (ss != 0 && ss != ((addrmask >> rightshift) & signmask)) 1456 flag = bfd_reloc_overflow; 1457 1458 /* We only need this next bit of code if the sign bit of B 1459 is below the sign bit of A. This would only happen if 1460 SRC_MASK had fewer bits than BITSIZE. Note that if 1461 SRC_MASK has more bits than BITSIZE, we can get into 1462 trouble; we would need to verify that B is in range, as 1463 we do for A above. */ 1464 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask; 1465 1466 /* Set all the bits above the sign bit. */ 1467 b = (b ^ signmask) - signmask; 1468 1469 b = (b & addrmask) >> bitpos; 1470 1471 /* Now we can do the addition. */ 1472 sum = a + b; 1473 1474 /* See if the result has the correct sign. Bits above the 1475 sign bit are junk now; ignore them. If the sum is 1476 positive, make sure we did not have all negative inputs; 1477 if the sum is negative, make sure we did not have all 1478 positive inputs. The test below looks only at the sign 1479 bits, and it really just 1480 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM) 1481 */ 1482 signmask = (fieldmask >> 1) + 1; 1483 if (((~ (a ^ b)) & (a ^ sum)) & signmask) 1484 flag = bfd_reloc_overflow; 1485 1486 break; 1487 1488 case complain_overflow_unsigned: 1489 /* Checking for an unsigned overflow is relatively easy: 1490 trim the addresses and add, and trim the result as well. 1491 Overflow is normally indicated when the result does not 1492 fit in the field. However, we also need to consider the 1493 case when, e.g., fieldmask is 0x7fffffff or smaller, an 1494 input is 0x80000000, and bfd_vma is only 32 bits; then we 1495 will get sum == 0, but there is an overflow, since the 1496 inputs did not fit in the field. Instead of doing a 1497 separate test, we can check for this by or-ing in the 1498 operands when testing for the sum overflowing its final 1499 field. */ 1500 a = (a & addrmask) >> rightshift; 1501 b = (b & addrmask) >> bitpos; 1502 sum = (a + b) & addrmask; 1503 if ((a | b | sum) & ~ fieldmask) 1504 flag = bfd_reloc_overflow; 1505 1506 break; 1507 1508 case complain_overflow_bitfield: 1509 /* Much like the signed check, but for a field one bit 1510 wider, and no trimming inputs with addrmask. We allow a 1511 bitfield to represent numbers in the range -2**n to 1512 2**n-1, where n is the number of bits in the field. 1513 Note that when bfd_vma is 32 bits, a 32-bit reloc can't 1514 overflow, which is exactly what we want. */ 1515 a >>= rightshift; 1516 1517 signmask = ~ fieldmask; 1518 ss = a & signmask; 1519 if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & signmask)) 1520 flag = bfd_reloc_overflow; 1521 1522 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask; 1523 b = (b ^ signmask) - signmask; 1524 1525 b >>= bitpos; 1526 1527 sum = a + b; 1528 1529 /* We mask with addrmask here to explicitly allow an address 1530 wrap-around. The Linux kernel relies on it, and it is 1531 the only way to write assembler code which can run when 1532 loaded at a location 0x80000000 away from the location at 1533 which it is linked. */ 1534 signmask = fieldmask + 1; 1535 if (((~ (a ^ b)) & (a ^ sum)) & signmask & addrmask) 1536 flag = bfd_reloc_overflow; 1537 1538 break; 1539 1540 default: 1541 abort (); 1542 } 1543 } 1544 1545 /* Put RELOCATION in the right bits. */ 1546 relocation >>= (bfd_vma) rightshift; 1547 relocation <<= (bfd_vma) bitpos; 1548 1549 /* Add RELOCATION to the right bits of X. */ 1550 x = ((x & ~howto->dst_mask) 1551 | (((x & howto->src_mask) + relocation) & howto->dst_mask)); 1552 1553 /* Put the relocated value back in the object file. */ 1554 switch (size) 1555 { 1556 default: 1557 case 0: 1558 abort (); 1559 case 1: 1560 bfd_put_8 (input_bfd, x, location); 1561 break; 1562 case 2: 1563 bfd_put_16 (input_bfd, x, location); 1564 break; 1565 case 4: 1566 bfd_put_32 (input_bfd, x, location); 1567 break; 1568 case 8: 1569#ifdef BFD64 1570 bfd_put_64 (input_bfd, x, location); 1571#else 1572 abort (); 1573#endif 1574 break; 1575 } 1576 1577 return flag; 1578} 1579 1580/* 1581DOCDD 1582INODE 1583 howto manager, , typedef arelent, Relocations 1584 1585SECTION 1586 The howto manager 1587 1588 When an application wants to create a relocation, but doesn't 1589 know what the target machine might call it, it can find out by 1590 using this bit of code. 1591 1592*/ 1593 1594/* 1595TYPEDEF 1596 bfd_reloc_code_type 1597 1598DESCRIPTION 1599 The insides of a reloc code. The idea is that, eventually, there 1600 will be one enumerator for every type of relocation we ever do. 1601 Pass one of these values to <<bfd_reloc_type_lookup>>, and it'll 1602 return a howto pointer. 1603 1604 This does mean that the application must determine the correct 1605 enumerator value; you can't get a howto pointer from a random set 1606 of attributes. 1607 1608SENUM 1609 bfd_reloc_code_real 1610 1611ENUM 1612 BFD_RELOC_64 1613ENUMX 1614 BFD_RELOC_32 1615ENUMX 1616 BFD_RELOC_26 1617ENUMX 1618 BFD_RELOC_24 1619ENUMX 1620 BFD_RELOC_16 1621ENUMX 1622 BFD_RELOC_14 1623ENUMX 1624 BFD_RELOC_8 1625ENUMDOC 1626 Basic absolute relocations of N bits. 1627 1628ENUM 1629 BFD_RELOC_64_PCREL 1630ENUMX 1631 BFD_RELOC_32_PCREL 1632ENUMX 1633 BFD_RELOC_24_PCREL 1634ENUMX 1635 BFD_RELOC_16_PCREL 1636ENUMX 1637 BFD_RELOC_12_PCREL 1638ENUMX 1639 BFD_RELOC_8_PCREL 1640ENUMDOC 1641 PC-relative relocations. Sometimes these are relative to the address 1642of the relocation itself; sometimes they are relative to the start of 1643the section containing the relocation. It depends on the specific target. 1644 1645The 24-bit relocation is used in some Intel 960 configurations. 1646 1647ENUM 1648 BFD_RELOC_32_SECREL 1649ENUMDOC 1650 Section relative relocations. Some targets need this for DWARF2. 1651 1652ENUM 1653 BFD_RELOC_32_GOT_PCREL 1654ENUMX 1655 BFD_RELOC_16_GOT_PCREL 1656ENUMX 1657 BFD_RELOC_8_GOT_PCREL 1658ENUMX 1659 BFD_RELOC_32_GOTOFF 1660ENUMX 1661 BFD_RELOC_16_GOTOFF 1662ENUMX 1663 BFD_RELOC_LO16_GOTOFF 1664ENUMX 1665 BFD_RELOC_HI16_GOTOFF 1666ENUMX 1667 BFD_RELOC_HI16_S_GOTOFF 1668ENUMX 1669 BFD_RELOC_8_GOTOFF 1670ENUMX 1671 BFD_RELOC_64_PLT_PCREL 1672ENUMX 1673 BFD_RELOC_32_PLT_PCREL 1674ENUMX 1675 BFD_RELOC_24_PLT_PCREL 1676ENUMX 1677 BFD_RELOC_16_PLT_PCREL 1678ENUMX 1679 BFD_RELOC_8_PLT_PCREL 1680ENUMX 1681 BFD_RELOC_64_PLTOFF 1682ENUMX 1683 BFD_RELOC_32_PLTOFF 1684ENUMX 1685 BFD_RELOC_16_PLTOFF 1686ENUMX 1687 BFD_RELOC_LO16_PLTOFF 1688ENUMX 1689 BFD_RELOC_HI16_PLTOFF 1690ENUMX 1691 BFD_RELOC_HI16_S_PLTOFF 1692ENUMX 1693 BFD_RELOC_8_PLTOFF 1694ENUMDOC 1695 For ELF. 1696 1697ENUM 1698 BFD_RELOC_68K_GLOB_DAT 1699ENUMX 1700 BFD_RELOC_68K_JMP_SLOT 1701ENUMX 1702 BFD_RELOC_68K_RELATIVE 1703ENUMDOC 1704 Relocations used by 68K ELF. 1705 1706ENUM 1707 BFD_RELOC_32_BASEREL 1708ENUMX 1709 BFD_RELOC_16_BASEREL 1710ENUMX 1711 BFD_RELOC_LO16_BASEREL 1712ENUMX 1713 BFD_RELOC_HI16_BASEREL 1714ENUMX 1715 BFD_RELOC_HI16_S_BASEREL 1716ENUMX 1717 BFD_RELOC_8_BASEREL 1718ENUMX 1719 BFD_RELOC_RVA 1720ENUMDOC 1721 Linkage-table relative. 1722 1723ENUM 1724 BFD_RELOC_8_FFnn 1725ENUMDOC 1726 Absolute 8-bit relocation, but used to form an address like 0xFFnn. 1727 1728ENUM 1729 BFD_RELOC_32_PCREL_S2 1730ENUMX 1731 BFD_RELOC_16_PCREL_S2 1732ENUMX 1733 BFD_RELOC_23_PCREL_S2 1734ENUMDOC 1735 These PC-relative relocations are stored as word displacements -- 1736i.e., byte displacements shifted right two bits. The 30-bit word 1737displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the 1738SPARC. (SPARC tools generally refer to this as <<WDISP30>>.) The 1739signed 16-bit displacement is used on the MIPS, and the 23-bit 1740displacement is used on the Alpha. 1741 1742ENUM 1743 BFD_RELOC_HI22 1744ENUMX 1745 BFD_RELOC_LO10 1746ENUMDOC 1747 High 22 bits and low 10 bits of 32-bit value, placed into lower bits of 1748the target word. These are used on the SPARC. 1749 1750ENUM 1751 BFD_RELOC_GPREL16 1752ENUMX 1753 BFD_RELOC_GPREL32 1754ENUMDOC 1755 For systems that allocate a Global Pointer register, these are 1756displacements off that register. These relocation types are 1757handled specially, because the value the register will have is 1758decided relatively late. 1759 1760ENUM 1761 BFD_RELOC_I960_CALLJ 1762ENUMDOC 1763 Reloc types used for i960/b.out. 1764 1765ENUM 1766 BFD_RELOC_NONE 1767ENUMX 1768 BFD_RELOC_SPARC_WDISP22 1769ENUMX 1770 BFD_RELOC_SPARC22 1771ENUMX 1772 BFD_RELOC_SPARC13 1773ENUMX 1774 BFD_RELOC_SPARC_GOT10 1775ENUMX 1776 BFD_RELOC_SPARC_GOT13 1777ENUMX 1778 BFD_RELOC_SPARC_GOT22 1779ENUMX 1780 BFD_RELOC_SPARC_PC10 1781ENUMX 1782 BFD_RELOC_SPARC_PC22 1783ENUMX 1784 BFD_RELOC_SPARC_WPLT30 1785ENUMX 1786 BFD_RELOC_SPARC_COPY 1787ENUMX 1788 BFD_RELOC_SPARC_GLOB_DAT 1789ENUMX 1790 BFD_RELOC_SPARC_JMP_SLOT 1791ENUMX 1792 BFD_RELOC_SPARC_RELATIVE 1793ENUMX 1794 BFD_RELOC_SPARC_UA16 1795ENUMX 1796 BFD_RELOC_SPARC_UA32 1797ENUMX 1798 BFD_RELOC_SPARC_UA64 1799ENUMDOC 1800 SPARC ELF relocations. There is probably some overlap with other 1801 relocation types already defined. 1802 1803ENUM 1804 BFD_RELOC_SPARC_BASE13 1805ENUMX 1806 BFD_RELOC_SPARC_BASE22 1807ENUMDOC 1808 I think these are specific to SPARC a.out (e.g., Sun 4). 1809 1810ENUMEQ 1811 BFD_RELOC_SPARC_64 1812 BFD_RELOC_64 1813ENUMX 1814 BFD_RELOC_SPARC_10 1815ENUMX 1816 BFD_RELOC_SPARC_11 1817ENUMX 1818 BFD_RELOC_SPARC_OLO10 1819ENUMX 1820 BFD_RELOC_SPARC_HH22 1821ENUMX 1822 BFD_RELOC_SPARC_HM10 1823ENUMX 1824 BFD_RELOC_SPARC_LM22 1825ENUMX 1826 BFD_RELOC_SPARC_PC_HH22 1827ENUMX 1828 BFD_RELOC_SPARC_PC_HM10 1829ENUMX 1830 BFD_RELOC_SPARC_PC_LM22 1831ENUMX 1832 BFD_RELOC_SPARC_WDISP16 1833ENUMX 1834 BFD_RELOC_SPARC_WDISP19 1835ENUMX 1836 BFD_RELOC_SPARC_7 1837ENUMX 1838 BFD_RELOC_SPARC_6 1839ENUMX 1840 BFD_RELOC_SPARC_5 1841ENUMEQX 1842 BFD_RELOC_SPARC_DISP64 1843 BFD_RELOC_64_PCREL 1844ENUMX 1845 BFD_RELOC_SPARC_PLT32 1846ENUMX 1847 BFD_RELOC_SPARC_PLT64 1848ENUMX 1849 BFD_RELOC_SPARC_HIX22 1850ENUMX 1851 BFD_RELOC_SPARC_LOX10 1852ENUMX 1853 BFD_RELOC_SPARC_H44 1854ENUMX 1855 BFD_RELOC_SPARC_M44 1856ENUMX 1857 BFD_RELOC_SPARC_L44 1858ENUMX 1859 BFD_RELOC_SPARC_REGISTER 1860ENUMDOC 1861 SPARC64 relocations 1862 1863ENUM 1864 BFD_RELOC_SPARC_REV32 1865ENUMDOC 1866 SPARC little endian relocation 1867ENUM 1868 BFD_RELOC_SPARC_TLS_GD_HI22 1869ENUMX 1870 BFD_RELOC_SPARC_TLS_GD_LO10 1871ENUMX 1872 BFD_RELOC_SPARC_TLS_GD_ADD 1873ENUMX 1874 BFD_RELOC_SPARC_TLS_GD_CALL 1875ENUMX 1876 BFD_RELOC_SPARC_TLS_LDM_HI22 1877ENUMX 1878 BFD_RELOC_SPARC_TLS_LDM_LO10 1879ENUMX 1880 BFD_RELOC_SPARC_TLS_LDM_ADD 1881ENUMX 1882 BFD_RELOC_SPARC_TLS_LDM_CALL 1883ENUMX 1884 BFD_RELOC_SPARC_TLS_LDO_HIX22 1885ENUMX 1886 BFD_RELOC_SPARC_TLS_LDO_LOX10 1887ENUMX 1888 BFD_RELOC_SPARC_TLS_LDO_ADD 1889ENUMX 1890 BFD_RELOC_SPARC_TLS_IE_HI22 1891ENUMX 1892 BFD_RELOC_SPARC_TLS_IE_LO10 1893ENUMX 1894 BFD_RELOC_SPARC_TLS_IE_LD 1895ENUMX 1896 BFD_RELOC_SPARC_TLS_IE_LDX 1897ENUMX 1898 BFD_RELOC_SPARC_TLS_IE_ADD 1899ENUMX 1900 BFD_RELOC_SPARC_TLS_LE_HIX22 1901ENUMX 1902 BFD_RELOC_SPARC_TLS_LE_LOX10 1903ENUMX 1904 BFD_RELOC_SPARC_TLS_DTPMOD32 1905ENUMX 1906 BFD_RELOC_SPARC_TLS_DTPMOD64 1907ENUMX 1908 BFD_RELOC_SPARC_TLS_DTPOFF32 1909ENUMX 1910 BFD_RELOC_SPARC_TLS_DTPOFF64 1911ENUMX 1912 BFD_RELOC_SPARC_TLS_TPOFF32 1913ENUMX 1914 BFD_RELOC_SPARC_TLS_TPOFF64 1915ENUMDOC 1916 SPARC TLS relocations 1917 1918ENUM 1919 BFD_RELOC_ALPHA_GPDISP_HI16 1920ENUMDOC 1921 Alpha ECOFF and ELF relocations. Some of these treat the symbol or 1922 "addend" in some special way. 1923 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when 1924 writing; when reading, it will be the absolute section symbol. The 1925 addend is the displacement in bytes of the "lda" instruction from 1926 the "ldah" instruction (which is at the address of this reloc). 1927ENUM 1928 BFD_RELOC_ALPHA_GPDISP_LO16 1929ENUMDOC 1930 For GPDISP_LO16 ("ignore") relocations, the symbol is handled as 1931 with GPDISP_HI16 relocs. The addend is ignored when writing the 1932 relocations out, and is filled in with the file's GP value on 1933 reading, for convenience. 1934 1935ENUM 1936 BFD_RELOC_ALPHA_GPDISP 1937ENUMDOC 1938 The ELF GPDISP relocation is exactly the same as the GPDISP_HI16 1939 relocation except that there is no accompanying GPDISP_LO16 1940 relocation. 1941 1942ENUM 1943 BFD_RELOC_ALPHA_LITERAL 1944ENUMX 1945 BFD_RELOC_ALPHA_ELF_LITERAL 1946ENUMX 1947 BFD_RELOC_ALPHA_LITUSE 1948ENUMDOC 1949 The Alpha LITERAL/LITUSE relocs are produced by a symbol reference; 1950 the assembler turns it into a LDQ instruction to load the address of 1951 the symbol, and then fills in a register in the real instruction. 1952 1953 The LITERAL reloc, at the LDQ instruction, refers to the .lita 1954 section symbol. The addend is ignored when writing, but is filled 1955 in with the file's GP value on reading, for convenience, as with the 1956 GPDISP_LO16 reloc. 1957 1958 The ELF_LITERAL reloc is somewhere between 16_GOTOFF and GPDISP_LO16. 1959 It should refer to the symbol to be referenced, as with 16_GOTOFF, 1960 but it generates output not based on the position within the .got 1961 section, but relative to the GP value chosen for the file during the 1962 final link stage. 1963 1964 The LITUSE reloc, on the instruction using the loaded address, gives 1965 information to the linker that it might be able to use to optimize 1966 away some literal section references. The symbol is ignored (read 1967 as the absolute section symbol), and the "addend" indicates the type 1968 of instruction using the register: 1969 1 - "memory" fmt insn 1970 2 - byte-manipulation (byte offset reg) 1971 3 - jsr (target of branch) 1972 1973ENUM 1974 BFD_RELOC_ALPHA_HINT 1975ENUMDOC 1976 The HINT relocation indicates a value that should be filled into the 1977 "hint" field of a jmp/jsr/ret instruction, for possible branch- 1978 prediction logic which may be provided on some processors. 1979 1980ENUM 1981 BFD_RELOC_ALPHA_LINKAGE 1982ENUMDOC 1983 The LINKAGE relocation outputs a linkage pair in the object file, 1984 which is filled by the linker. 1985 1986ENUM 1987 BFD_RELOC_ALPHA_CODEADDR 1988ENUMDOC 1989 The CODEADDR relocation outputs a STO_CA in the object file, 1990 which is filled by the linker. 1991 1992ENUM 1993 BFD_RELOC_ALPHA_GPREL_HI16 1994ENUMX 1995 BFD_RELOC_ALPHA_GPREL_LO16 1996ENUMDOC 1997 The GPREL_HI/LO relocations together form a 32-bit offset from the 1998 GP register. 1999 2000ENUM 2001 BFD_RELOC_ALPHA_BRSGP 2002ENUMDOC 2003 Like BFD_RELOC_23_PCREL_S2, except that the source and target must 2004 share a common GP, and the target address is adjusted for 2005 STO_ALPHA_STD_GPLOAD. 2006 2007ENUM 2008 BFD_RELOC_ALPHA_TLSGD 2009ENUMX 2010 BFD_RELOC_ALPHA_TLSLDM 2011ENUMX 2012 BFD_RELOC_ALPHA_DTPMOD64 2013ENUMX 2014 BFD_RELOC_ALPHA_GOTDTPREL16 2015ENUMX 2016 BFD_RELOC_ALPHA_DTPREL64 2017ENUMX 2018 BFD_RELOC_ALPHA_DTPREL_HI16 2019ENUMX 2020 BFD_RELOC_ALPHA_DTPREL_LO16 2021ENUMX 2022 BFD_RELOC_ALPHA_DTPREL16 2023ENUMX 2024 BFD_RELOC_ALPHA_GOTTPREL16 2025ENUMX 2026 BFD_RELOC_ALPHA_TPREL64 2027ENUMX 2028 BFD_RELOC_ALPHA_TPREL_HI16 2029ENUMX 2030 BFD_RELOC_ALPHA_TPREL_LO16 2031ENUMX 2032 BFD_RELOC_ALPHA_TPREL16 2033ENUMDOC 2034 Alpha thread-local storage relocations. 2035 2036ENUM 2037 BFD_RELOC_MIPS_JMP 2038ENUMDOC 2039 Bits 27..2 of the relocation address shifted right 2 bits; 2040 simple reloc otherwise. 2041 2042ENUM 2043 BFD_RELOC_MIPS16_JMP 2044ENUMDOC 2045 The MIPS16 jump instruction. 2046 2047ENUM 2048 BFD_RELOC_MIPS16_GPREL 2049ENUMDOC 2050 MIPS16 GP relative reloc. 2051 2052ENUM 2053 BFD_RELOC_HI16 2054ENUMDOC 2055 High 16 bits of 32-bit value; simple reloc. 2056ENUM 2057 BFD_RELOC_HI16_S 2058ENUMDOC 2059 High 16 bits of 32-bit value but the low 16 bits will be sign 2060 extended and added to form the final result. If the low 16 2061 bits form a negative number, we need to add one to the high value 2062 to compensate for the borrow when the low bits are added. 2063ENUM 2064 BFD_RELOC_LO16 2065ENUMDOC 2066 Low 16 bits. 2067 2068ENUM 2069 BFD_RELOC_MIPS_LITERAL 2070ENUMDOC 2071 Relocation against a MIPS literal section. 2072 2073ENUM 2074 BFD_RELOC_MIPS_GOT16 2075ENUMX 2076 BFD_RELOC_MIPS_CALL16 2077ENUMX 2078 BFD_RELOC_MIPS_GOT_HI16 2079ENUMX 2080 BFD_RELOC_MIPS_GOT_LO16 2081ENUMX 2082 BFD_RELOC_MIPS_CALL_HI16 2083ENUMX 2084 BFD_RELOC_MIPS_CALL_LO16 2085ENUMX 2086 BFD_RELOC_MIPS_SUB 2087ENUMX 2088 BFD_RELOC_MIPS_GOT_PAGE 2089ENUMX 2090 BFD_RELOC_MIPS_GOT_OFST 2091ENUMX 2092 BFD_RELOC_MIPS_GOT_DISP 2093ENUMX 2094 BFD_RELOC_MIPS_SHIFT5 2095ENUMX 2096 BFD_RELOC_MIPS_SHIFT6 2097ENUMX 2098 BFD_RELOC_MIPS_INSERT_A 2099ENUMX 2100 BFD_RELOC_MIPS_INSERT_B 2101ENUMX 2102 BFD_RELOC_MIPS_DELETE 2103ENUMX 2104 BFD_RELOC_MIPS_HIGHEST 2105ENUMX 2106 BFD_RELOC_MIPS_HIGHER 2107ENUMX 2108 BFD_RELOC_MIPS_SCN_DISP 2109ENUMX 2110 BFD_RELOC_MIPS_REL16 2111ENUMX 2112 BFD_RELOC_MIPS_RELGOT 2113ENUMX 2114 BFD_RELOC_MIPS_JALR 2115ENUMDOC 2116 MIPS ELF relocations. 2117COMMENT 2118 2119ENUM 2120 BFD_RELOC_FRV_LABEL16 2121ENUMX 2122 BFD_RELOC_FRV_LABEL24 2123ENUMX 2124 BFD_RELOC_FRV_LO16 2125ENUMX 2126 BFD_RELOC_FRV_HI16 2127ENUMX 2128 BFD_RELOC_FRV_GPREL12 2129ENUMX 2130 BFD_RELOC_FRV_GPRELU12 2131ENUMX 2132 BFD_RELOC_FRV_GPREL32 2133ENUMX 2134 BFD_RELOC_FRV_GPRELHI 2135ENUMX 2136 BFD_RELOC_FRV_GPRELLO 2137ENUMX 2138 BFD_RELOC_FRV_GOT12 2139ENUMX 2140 BFD_RELOC_FRV_GOTHI 2141ENUMX 2142 BFD_RELOC_FRV_GOTLO 2143ENUMX 2144 BFD_RELOC_FRV_FUNCDESC 2145ENUMX 2146 BFD_RELOC_FRV_FUNCDESC_GOT12 2147ENUMX 2148 BFD_RELOC_FRV_FUNCDESC_GOTHI 2149ENUMX 2150 BFD_RELOC_FRV_FUNCDESC_GOTLO 2151ENUMX 2152 BFD_RELOC_FRV_FUNCDESC_VALUE 2153ENUMX 2154 BFD_RELOC_FRV_FUNCDESC_GOTOFF12 2155ENUMX 2156 BFD_RELOC_FRV_FUNCDESC_GOTOFFHI 2157ENUMX 2158 BFD_RELOC_FRV_FUNCDESC_GOTOFFLO 2159ENUMX 2160 BFD_RELOC_FRV_GOTOFF12 2161ENUMX 2162 BFD_RELOC_FRV_GOTOFFHI 2163ENUMX 2164 BFD_RELOC_FRV_GOTOFFLO 2165ENUMDOC 2166 Fujitsu Frv Relocations. 2167COMMENT 2168 2169ENUM 2170 BFD_RELOC_MN10300_GOTOFF24 2171ENUMDOC 2172 This is a 24bit GOT-relative reloc for the mn10300. 2173ENUM 2174 BFD_RELOC_MN10300_GOT32 2175ENUMDOC 2176 This is a 32bit GOT-relative reloc for the mn10300, offset by two bytes 2177 in the instruction. 2178ENUM 2179 BFD_RELOC_MN10300_GOT24 2180ENUMDOC 2181 This is a 24bit GOT-relative reloc for the mn10300, offset by two bytes 2182 in the instruction. 2183ENUM 2184 BFD_RELOC_MN10300_GOT16 2185ENUMDOC 2186 This is a 16bit GOT-relative reloc for the mn10300, offset by two bytes 2187 in the instruction. 2188ENUM 2189 BFD_RELOC_MN10300_COPY 2190ENUMDOC 2191 Copy symbol at runtime. 2192ENUM 2193 BFD_RELOC_MN10300_GLOB_DAT 2194ENUMDOC 2195 Create GOT entry. 2196ENUM 2197 BFD_RELOC_MN10300_JMP_SLOT 2198ENUMDOC 2199 Create PLT entry. 2200ENUM 2201 BFD_RELOC_MN10300_RELATIVE 2202ENUMDOC 2203 Adjust by program base. 2204COMMENT 2205 2206ENUM 2207 BFD_RELOC_386_GOT32 2208ENUMX 2209 BFD_RELOC_386_PLT32 2210ENUMX 2211 BFD_RELOC_386_COPY 2212ENUMX 2213 BFD_RELOC_386_GLOB_DAT 2214ENUMX 2215 BFD_RELOC_386_JUMP_SLOT 2216ENUMX 2217 BFD_RELOC_386_RELATIVE 2218ENUMX 2219 BFD_RELOC_386_GOTOFF 2220ENUMX 2221 BFD_RELOC_386_GOTPC 2222ENUMX 2223 BFD_RELOC_386_TLS_TPOFF 2224ENUMX 2225 BFD_RELOC_386_TLS_IE 2226ENUMX 2227 BFD_RELOC_386_TLS_GOTIE 2228ENUMX 2229 BFD_RELOC_386_TLS_LE 2230ENUMX 2231 BFD_RELOC_386_TLS_GD 2232ENUMX 2233 BFD_RELOC_386_TLS_LDM 2234ENUMX 2235 BFD_RELOC_386_TLS_LDO_32 2236ENUMX 2237 BFD_RELOC_386_TLS_IE_32 2238ENUMX 2239 BFD_RELOC_386_TLS_LE_32 2240ENUMX 2241 BFD_RELOC_386_TLS_DTPMOD32 2242ENUMX 2243 BFD_RELOC_386_TLS_DTPOFF32 2244ENUMX 2245 BFD_RELOC_386_TLS_TPOFF32 2246ENUMDOC 2247 i386/elf relocations 2248 2249ENUM 2250 BFD_RELOC_X86_64_GOT32 2251ENUMX 2252 BFD_RELOC_X86_64_PLT32 2253ENUMX 2254 BFD_RELOC_X86_64_COPY 2255ENUMX 2256 BFD_RELOC_X86_64_GLOB_DAT 2257ENUMX 2258 BFD_RELOC_X86_64_JUMP_SLOT 2259ENUMX 2260 BFD_RELOC_X86_64_RELATIVE 2261ENUMX 2262 BFD_RELOC_X86_64_GOTPCREL 2263ENUMX 2264 BFD_RELOC_X86_64_32S 2265ENUMX 2266 BFD_RELOC_X86_64_DTPMOD64 2267ENUMX 2268 BFD_RELOC_X86_64_DTPOFF64 2269ENUMX 2270 BFD_RELOC_X86_64_TPOFF64 2271ENUMX 2272 BFD_RELOC_X86_64_TLSGD 2273ENUMX 2274 BFD_RELOC_X86_64_TLSLD 2275ENUMX 2276 BFD_RELOC_X86_64_DTPOFF32 2277ENUMX 2278 BFD_RELOC_X86_64_GOTTPOFF 2279ENUMX 2280 BFD_RELOC_X86_64_TPOFF32 2281ENUMDOC 2282 x86-64/elf relocations 2283 2284ENUM 2285 BFD_RELOC_NS32K_IMM_8 2286ENUMX 2287 BFD_RELOC_NS32K_IMM_16 2288ENUMX 2289 BFD_RELOC_NS32K_IMM_32 2290ENUMX 2291 BFD_RELOC_NS32K_IMM_8_PCREL 2292ENUMX 2293 BFD_RELOC_NS32K_IMM_16_PCREL 2294ENUMX 2295 BFD_RELOC_NS32K_IMM_32_PCREL 2296ENUMX 2297 BFD_RELOC_NS32K_DISP_8 2298ENUMX 2299 BFD_RELOC_NS32K_DISP_16 2300ENUMX 2301 BFD_RELOC_NS32K_DISP_32 2302ENUMX 2303 BFD_RELOC_NS32K_DISP_8_PCREL 2304ENUMX 2305 BFD_RELOC_NS32K_DISP_16_PCREL 2306ENUMX 2307 BFD_RELOC_NS32K_DISP_32_PCREL 2308ENUMDOC 2309 ns32k relocations 2310 2311ENUM 2312 BFD_RELOC_PDP11_DISP_8_PCREL 2313ENUMX 2314 BFD_RELOC_PDP11_DISP_6_PCREL 2315ENUMDOC 2316 PDP11 relocations 2317 2318ENUM 2319 BFD_RELOC_PJ_CODE_HI16 2320ENUMX 2321 BFD_RELOC_PJ_CODE_LO16 2322ENUMX 2323 BFD_RELOC_PJ_CODE_DIR16 2324ENUMX 2325 BFD_RELOC_PJ_CODE_DIR32 2326ENUMX 2327 BFD_RELOC_PJ_CODE_REL16 2328ENUMX 2329 BFD_RELOC_PJ_CODE_REL32 2330ENUMDOC 2331 Picojava relocs. Not all of these appear in object files. 2332 2333ENUM 2334 BFD_RELOC_PPC_B26 2335ENUMX 2336 BFD_RELOC_PPC_BA26 2337ENUMX 2338 BFD_RELOC_PPC_TOC16 2339ENUMX 2340 BFD_RELOC_PPC_B16 2341ENUMX 2342 BFD_RELOC_PPC_B16_BRTAKEN 2343ENUMX 2344 BFD_RELOC_PPC_B16_BRNTAKEN 2345ENUMX 2346 BFD_RELOC_PPC_BA16 2347ENUMX 2348 BFD_RELOC_PPC_BA16_BRTAKEN 2349ENUMX 2350 BFD_RELOC_PPC_BA16_BRNTAKEN 2351ENUMX 2352 BFD_RELOC_PPC_COPY 2353ENUMX 2354 BFD_RELOC_PPC_GLOB_DAT 2355ENUMX 2356 BFD_RELOC_PPC_JMP_SLOT 2357ENUMX 2358 BFD_RELOC_PPC_RELATIVE 2359ENUMX 2360 BFD_RELOC_PPC_LOCAL24PC 2361ENUMX 2362 BFD_RELOC_PPC_EMB_NADDR32 2363ENUMX 2364 BFD_RELOC_PPC_EMB_NADDR16 2365ENUMX 2366 BFD_RELOC_PPC_EMB_NADDR16_LO 2367ENUMX 2368 BFD_RELOC_PPC_EMB_NADDR16_HI 2369ENUMX 2370 BFD_RELOC_PPC_EMB_NADDR16_HA 2371ENUMX 2372 BFD_RELOC_PPC_EMB_SDAI16 2373ENUMX 2374 BFD_RELOC_PPC_EMB_SDA2I16 2375ENUMX 2376 BFD_RELOC_PPC_EMB_SDA2REL 2377ENUMX 2378 BFD_RELOC_PPC_EMB_SDA21 2379ENUMX 2380 BFD_RELOC_PPC_EMB_MRKREF 2381ENUMX 2382 BFD_RELOC_PPC_EMB_RELSEC16 2383ENUMX 2384 BFD_RELOC_PPC_EMB_RELST_LO 2385ENUMX 2386 BFD_RELOC_PPC_EMB_RELST_HI 2387ENUMX 2388 BFD_RELOC_PPC_EMB_RELST_HA 2389ENUMX 2390 BFD_RELOC_PPC_EMB_BIT_FLD 2391ENUMX 2392 BFD_RELOC_PPC_EMB_RELSDA 2393ENUMX 2394 BFD_RELOC_PPC64_HIGHER 2395ENUMX 2396 BFD_RELOC_PPC64_HIGHER_S 2397ENUMX 2398 BFD_RELOC_PPC64_HIGHEST 2399ENUMX 2400 BFD_RELOC_PPC64_HIGHEST_S 2401ENUMX 2402 BFD_RELOC_PPC64_TOC16_LO 2403ENUMX 2404 BFD_RELOC_PPC64_TOC16_HI 2405ENUMX 2406 BFD_RELOC_PPC64_TOC16_HA 2407ENUMX 2408 BFD_RELOC_PPC64_TOC 2409ENUMX 2410 BFD_RELOC_PPC64_PLTGOT16 2411ENUMX 2412 BFD_RELOC_PPC64_PLTGOT16_LO 2413ENUMX 2414 BFD_RELOC_PPC64_PLTGOT16_HI 2415ENUMX 2416 BFD_RELOC_PPC64_PLTGOT16_HA 2417ENUMX 2418 BFD_RELOC_PPC64_ADDR16_DS 2419ENUMX 2420 BFD_RELOC_PPC64_ADDR16_LO_DS 2421ENUMX 2422 BFD_RELOC_PPC64_GOT16_DS 2423ENUMX 2424 BFD_RELOC_PPC64_GOT16_LO_DS 2425ENUMX 2426 BFD_RELOC_PPC64_PLT16_LO_DS 2427ENUMX 2428 BFD_RELOC_PPC64_SECTOFF_DS 2429ENUMX 2430 BFD_RELOC_PPC64_SECTOFF_LO_DS 2431ENUMX 2432 BFD_RELOC_PPC64_TOC16_DS 2433ENUMX 2434 BFD_RELOC_PPC64_TOC16_LO_DS 2435ENUMX 2436 BFD_RELOC_PPC64_PLTGOT16_DS 2437ENUMX 2438 BFD_RELOC_PPC64_PLTGOT16_LO_DS 2439ENUMDOC 2440 Power(rs6000) and PowerPC relocations. 2441 2442ENUM 2443 BFD_RELOC_PPC_TLS 2444ENUMX 2445 BFD_RELOC_PPC_DTPMOD 2446ENUMX 2447 BFD_RELOC_PPC_TPREL16 2448ENUMX 2449 BFD_RELOC_PPC_TPREL16_LO 2450ENUMX 2451 BFD_RELOC_PPC_TPREL16_HI 2452ENUMX 2453 BFD_RELOC_PPC_TPREL16_HA 2454ENUMX 2455 BFD_RELOC_PPC_TPREL 2456ENUMX 2457 BFD_RELOC_PPC_DTPREL16 2458ENUMX 2459 BFD_RELOC_PPC_DTPREL16_LO 2460ENUMX 2461 BFD_RELOC_PPC_DTPREL16_HI 2462ENUMX 2463 BFD_RELOC_PPC_DTPREL16_HA 2464ENUMX 2465 BFD_RELOC_PPC_DTPREL 2466ENUMX 2467 BFD_RELOC_PPC_GOT_TLSGD16 2468ENUMX 2469 BFD_RELOC_PPC_GOT_TLSGD16_LO 2470ENUMX 2471 BFD_RELOC_PPC_GOT_TLSGD16_HI 2472ENUMX 2473 BFD_RELOC_PPC_GOT_TLSGD16_HA 2474ENUMX 2475 BFD_RELOC_PPC_GOT_TLSLD16 2476ENUMX 2477 BFD_RELOC_PPC_GOT_TLSLD16_LO 2478ENUMX 2479 BFD_RELOC_PPC_GOT_TLSLD16_HI 2480ENUMX 2481 BFD_RELOC_PPC_GOT_TLSLD16_HA 2482ENUMX 2483 BFD_RELOC_PPC_GOT_TPREL16 2484ENUMX 2485 BFD_RELOC_PPC_GOT_TPREL16_LO 2486ENUMX 2487 BFD_RELOC_PPC_GOT_TPREL16_HI 2488ENUMX 2489 BFD_RELOC_PPC_GOT_TPREL16_HA 2490ENUMX 2491 BFD_RELOC_PPC_GOT_DTPREL16 2492ENUMX 2493 BFD_RELOC_PPC_GOT_DTPREL16_LO 2494ENUMX 2495 BFD_RELOC_PPC_GOT_DTPREL16_HI 2496ENUMX 2497 BFD_RELOC_PPC_GOT_DTPREL16_HA 2498ENUMX 2499 BFD_RELOC_PPC64_TPREL16_DS 2500ENUMX 2501 BFD_RELOC_PPC64_TPREL16_LO_DS 2502ENUMX 2503 BFD_RELOC_PPC64_TPREL16_HIGHER 2504ENUMX 2505 BFD_RELOC_PPC64_TPREL16_HIGHERA 2506ENUMX 2507 BFD_RELOC_PPC64_TPREL16_HIGHEST 2508ENUMX 2509 BFD_RELOC_PPC64_TPREL16_HIGHESTA 2510ENUMX 2511 BFD_RELOC_PPC64_DTPREL16_DS 2512ENUMX 2513 BFD_RELOC_PPC64_DTPREL16_LO_DS 2514ENUMX 2515 BFD_RELOC_PPC64_DTPREL16_HIGHER 2516ENUMX 2517 BFD_RELOC_PPC64_DTPREL16_HIGHERA 2518ENUMX 2519 BFD_RELOC_PPC64_DTPREL16_HIGHEST 2520ENUMX 2521 BFD_RELOC_PPC64_DTPREL16_HIGHESTA 2522ENUMDOC 2523 PowerPC and PowerPC64 thread-local storage relocations. 2524 2525ENUM 2526 BFD_RELOC_I370_D12 2527ENUMDOC 2528 IBM 370/390 relocations 2529 2530ENUM 2531 BFD_RELOC_CTOR 2532ENUMDOC 2533 The type of reloc used to build a constructor table - at the moment 2534 probably a 32 bit wide absolute relocation, but the target can choose. 2535 It generally does map to one of the other relocation types. 2536 2537ENUM 2538 BFD_RELOC_ARM_PCREL_BRANCH 2539ENUMDOC 2540 ARM 26 bit pc-relative branch. The lowest two bits must be zero and are 2541 not stored in the instruction. 2542ENUM 2543 BFD_RELOC_ARM_PCREL_BLX 2544ENUMDOC 2545 ARM 26 bit pc-relative branch. The lowest bit must be zero and is 2546 not stored in the instruction. The 2nd lowest bit comes from a 1 bit 2547 field in the instruction. 2548ENUM 2549 BFD_RELOC_THUMB_PCREL_BLX 2550ENUMDOC 2551 Thumb 22 bit pc-relative branch. The lowest bit must be zero and is 2552 not stored in the instruction. The 2nd lowest bit comes from a 1 bit 2553 field in the instruction. 2554ENUM 2555 BFD_RELOC_ARM_IMMEDIATE 2556ENUMX 2557 BFD_RELOC_ARM_ADRL_IMMEDIATE 2558ENUMX 2559 BFD_RELOC_ARM_OFFSET_IMM 2560ENUMX 2561 BFD_RELOC_ARM_SHIFT_IMM 2562ENUMX 2563 BFD_RELOC_ARM_SMI 2564ENUMX 2565 BFD_RELOC_ARM_SWI 2566ENUMX 2567 BFD_RELOC_ARM_MULTI 2568ENUMX 2569 BFD_RELOC_ARM_CP_OFF_IMM 2570ENUMX 2571 BFD_RELOC_ARM_CP_OFF_IMM_S2 2572ENUMX 2573 BFD_RELOC_ARM_ADR_IMM 2574ENUMX 2575 BFD_RELOC_ARM_LDR_IMM 2576ENUMX 2577 BFD_RELOC_ARM_LITERAL 2578ENUMX 2579 BFD_RELOC_ARM_IN_POOL 2580ENUMX 2581 BFD_RELOC_ARM_OFFSET_IMM8 2582ENUMX 2583 BFD_RELOC_ARM_HWLITERAL 2584ENUMX 2585 BFD_RELOC_ARM_THUMB_ADD 2586ENUMX 2587 BFD_RELOC_ARM_THUMB_IMM 2588ENUMX 2589 BFD_RELOC_ARM_THUMB_SHIFT 2590ENUMX 2591 BFD_RELOC_ARM_THUMB_OFFSET 2592ENUMX 2593 BFD_RELOC_ARM_GOT12 2594ENUMX 2595 BFD_RELOC_ARM_GOT32 2596ENUMX 2597 BFD_RELOC_ARM_JUMP_SLOT 2598ENUMX 2599 BFD_RELOC_ARM_COPY 2600ENUMX 2601 BFD_RELOC_ARM_GLOB_DAT 2602ENUMX 2603 BFD_RELOC_ARM_PLT32 2604ENUMX 2605 BFD_RELOC_ARM_RELATIVE 2606ENUMX 2607 BFD_RELOC_ARM_GOTOFF 2608ENUMX 2609 BFD_RELOC_ARM_GOTPC 2610ENUMDOC 2611 These relocs are only used within the ARM assembler. They are not 2612 (at present) written to any object files. 2613ENUM 2614 BFD_RELOC_ARM_TARGET1 2615ENUMDOC 2616 Pc-relative or absolute relocation depending on target. Used for 2617 entries in .init_array sections. 2618ENUM 2619 BFD_RELOC_ARM_ROSEGREL32 2620ENUMDOC 2621 Read-only segment base relative address. 2622ENUM 2623 BFD_RELOC_ARM_SBREL32 2624ENUMDOC 2625 Data segment base relative address. 2626ENUM 2627 BFD_RELOC_ARM_TARGET2 2628ENUMDOC 2629 This reloc is used for References to RTTI dta from exception handling 2630 tables. The actual definition depends on the target. It may be a 2631 pc-relative or some form of GOT-indirect relocation. 2632ENUM 2633 BFD_RELOC_ARM_PREL31 2634ENUMDOC 2635 31-bit PC relative address. 2636 2637ENUM 2638 BFD_RELOC_SH_PCDISP8BY2 2639ENUMX 2640 BFD_RELOC_SH_PCDISP12BY2 2641ENUMX 2642 BFD_RELOC_SH_IMM3 2643ENUMX 2644 BFD_RELOC_SH_IMM3U 2645ENUMX 2646 BFD_RELOC_SH_DISP12 2647ENUMX 2648 BFD_RELOC_SH_DISP12BY2 2649ENUMX 2650 BFD_RELOC_SH_DISP12BY4 2651ENUMX 2652 BFD_RELOC_SH_DISP12BY8 2653ENUMX 2654 BFD_RELOC_SH_DISP20 2655ENUMX 2656 BFD_RELOC_SH_DISP20BY8 2657ENUMX 2658 BFD_RELOC_SH_IMM4 2659ENUMX 2660 BFD_RELOC_SH_IMM4BY2 2661ENUMX 2662 BFD_RELOC_SH_IMM4BY4 2663ENUMX 2664 BFD_RELOC_SH_IMM8 2665ENUMX 2666 BFD_RELOC_SH_IMM8BY2 2667ENUMX 2668 BFD_RELOC_SH_IMM8BY4 2669ENUMX 2670 BFD_RELOC_SH_PCRELIMM8BY2 2671ENUMX 2672 BFD_RELOC_SH_PCRELIMM8BY4 2673ENUMX 2674 BFD_RELOC_SH_SWITCH16 2675ENUMX 2676 BFD_RELOC_SH_SWITCH32 2677ENUMX 2678 BFD_RELOC_SH_USES 2679ENUMX 2680 BFD_RELOC_SH_COUNT 2681ENUMX 2682 BFD_RELOC_SH_ALIGN 2683ENUMX 2684 BFD_RELOC_SH_CODE 2685ENUMX 2686 BFD_RELOC_SH_DATA 2687ENUMX 2688 BFD_RELOC_SH_LABEL 2689ENUMX 2690 BFD_RELOC_SH_LOOP_START 2691ENUMX 2692 BFD_RELOC_SH_LOOP_END 2693ENUMX 2694 BFD_RELOC_SH_COPY 2695ENUMX 2696 BFD_RELOC_SH_GLOB_DAT 2697ENUMX 2698 BFD_RELOC_SH_JMP_SLOT 2699ENUMX 2700 BFD_RELOC_SH_RELATIVE 2701ENUMX 2702 BFD_RELOC_SH_GOTPC 2703ENUMX 2704 BFD_RELOC_SH_GOT_LOW16 2705ENUMX 2706 BFD_RELOC_SH_GOT_MEDLOW16 2707ENUMX 2708 BFD_RELOC_SH_GOT_MEDHI16 2709ENUMX 2710 BFD_RELOC_SH_GOT_HI16 2711ENUMX 2712 BFD_RELOC_SH_GOTPLT_LOW16 2713ENUMX 2714 BFD_RELOC_SH_GOTPLT_MEDLOW16 2715ENUMX 2716 BFD_RELOC_SH_GOTPLT_MEDHI16 2717ENUMX 2718 BFD_RELOC_SH_GOTPLT_HI16 2719ENUMX 2720 BFD_RELOC_SH_PLT_LOW16 2721ENUMX 2722 BFD_RELOC_SH_PLT_MEDLOW16 2723ENUMX 2724 BFD_RELOC_SH_PLT_MEDHI16 2725ENUMX 2726 BFD_RELOC_SH_PLT_HI16 2727ENUMX 2728 BFD_RELOC_SH_GOTOFF_LOW16 2729ENUMX 2730 BFD_RELOC_SH_GOTOFF_MEDLOW16 2731ENUMX 2732 BFD_RELOC_SH_GOTOFF_MEDHI16 2733ENUMX 2734 BFD_RELOC_SH_GOTOFF_HI16 2735ENUMX 2736 BFD_RELOC_SH_GOTPC_LOW16 2737ENUMX 2738 BFD_RELOC_SH_GOTPC_MEDLOW16 2739ENUMX 2740 BFD_RELOC_SH_GOTPC_MEDHI16 2741ENUMX 2742 BFD_RELOC_SH_GOTPC_HI16 2743ENUMX 2744 BFD_RELOC_SH_COPY64 2745ENUMX 2746 BFD_RELOC_SH_GLOB_DAT64 2747ENUMX 2748 BFD_RELOC_SH_JMP_SLOT64 2749ENUMX 2750 BFD_RELOC_SH_RELATIVE64 2751ENUMX 2752 BFD_RELOC_SH_GOT10BY4 2753ENUMX 2754 BFD_RELOC_SH_GOT10BY8 2755ENUMX 2756 BFD_RELOC_SH_GOTPLT10BY4 2757ENUMX 2758 BFD_RELOC_SH_GOTPLT10BY8 2759ENUMX 2760 BFD_RELOC_SH_GOTPLT32 2761ENUMX 2762 BFD_RELOC_SH_SHMEDIA_CODE 2763ENUMX 2764 BFD_RELOC_SH_IMMU5 2765ENUMX 2766 BFD_RELOC_SH_IMMS6 2767ENUMX 2768 BFD_RELOC_SH_IMMS6BY32 2769ENUMX 2770 BFD_RELOC_SH_IMMU6 2771ENUMX 2772 BFD_RELOC_SH_IMMS10 2773ENUMX 2774 BFD_RELOC_SH_IMMS10BY2 2775ENUMX 2776 BFD_RELOC_SH_IMMS10BY4 2777ENUMX 2778 BFD_RELOC_SH_IMMS10BY8 2779ENUMX 2780 BFD_RELOC_SH_IMMS16 2781ENUMX 2782 BFD_RELOC_SH_IMMU16 2783ENUMX 2784 BFD_RELOC_SH_IMM_LOW16 2785ENUMX 2786 BFD_RELOC_SH_IMM_LOW16_PCREL 2787ENUMX 2788 BFD_RELOC_SH_IMM_MEDLOW16 2789ENUMX 2790 BFD_RELOC_SH_IMM_MEDLOW16_PCREL 2791ENUMX 2792 BFD_RELOC_SH_IMM_MEDHI16 2793ENUMX 2794 BFD_RELOC_SH_IMM_MEDHI16_PCREL 2795ENUMX 2796 BFD_RELOC_SH_IMM_HI16 2797ENUMX 2798 BFD_RELOC_SH_IMM_HI16_PCREL 2799ENUMX 2800 BFD_RELOC_SH_PT_16 2801ENUMX 2802 BFD_RELOC_SH_TLS_GD_32 2803ENUMX 2804 BFD_RELOC_SH_TLS_LD_32 2805ENUMX 2806 BFD_RELOC_SH_TLS_LDO_32 2807ENUMX 2808 BFD_RELOC_SH_TLS_IE_32 2809ENUMX 2810 BFD_RELOC_SH_TLS_LE_32 2811ENUMX 2812 BFD_RELOC_SH_TLS_DTPMOD32 2813ENUMX 2814 BFD_RELOC_SH_TLS_DTPOFF32 2815ENUMX 2816 BFD_RELOC_SH_TLS_TPOFF32 2817ENUMDOC 2818 Renesas / SuperH SH relocs. Not all of these appear in object files. 2819 2820ENUM 2821 BFD_RELOC_THUMB_PCREL_BRANCH9 2822ENUMX 2823 BFD_RELOC_THUMB_PCREL_BRANCH12 2824ENUMX 2825 BFD_RELOC_THUMB_PCREL_BRANCH23 2826ENUMDOC 2827 Thumb 23-, 12- and 9-bit pc-relative branches. The lowest bit must 2828 be zero and is not stored in the instruction. 2829 2830ENUM 2831 BFD_RELOC_ARC_B22_PCREL 2832ENUMDOC 2833 ARC Cores relocs. 2834 ARC 22 bit pc-relative branch. The lowest two bits must be zero and are 2835 not stored in the instruction. The high 20 bits are installed in bits 26 2836 through 7 of the instruction. 2837ENUM 2838 BFD_RELOC_ARC_B26 2839ENUMDOC 2840 ARC 26 bit absolute branch. The lowest two bits must be zero and are not 2841 stored in the instruction. The high 24 bits are installed in bits 23 2842 through 0. 2843 2844ENUM 2845 BFD_RELOC_D10V_10_PCREL_R 2846ENUMDOC 2847 Mitsubishi D10V relocs. 2848 This is a 10-bit reloc with the right 2 bits 2849 assumed to be 0. 2850ENUM 2851 BFD_RELOC_D10V_10_PCREL_L 2852ENUMDOC 2853 Mitsubishi D10V relocs. 2854 This is a 10-bit reloc with the right 2 bits 2855 assumed to be 0. This is the same as the previous reloc 2856 except it is in the left container, i.e., 2857 shifted left 15 bits. 2858ENUM 2859 BFD_RELOC_D10V_18 2860ENUMDOC 2861 This is an 18-bit reloc with the right 2 bits 2862 assumed to be 0. 2863ENUM 2864 BFD_RELOC_D10V_18_PCREL 2865ENUMDOC 2866 This is an 18-bit reloc with the right 2 bits 2867 assumed to be 0. 2868 2869ENUM 2870 BFD_RELOC_D30V_6 2871ENUMDOC 2872 Mitsubishi D30V relocs. 2873 This is a 6-bit absolute reloc. 2874ENUM 2875 BFD_RELOC_D30V_9_PCREL 2876ENUMDOC 2877 This is a 6-bit pc-relative reloc with 2878 the right 3 bits assumed to be 0. 2879ENUM 2880 BFD_RELOC_D30V_9_PCREL_R 2881ENUMDOC 2882 This is a 6-bit pc-relative reloc with 2883 the right 3 bits assumed to be 0. Same 2884 as the previous reloc but on the right side 2885 of the container. 2886ENUM 2887 BFD_RELOC_D30V_15 2888ENUMDOC 2889 This is a 12-bit absolute reloc with the 2890 right 3 bitsassumed to be 0. 2891ENUM 2892 BFD_RELOC_D30V_15_PCREL 2893ENUMDOC 2894 This is a 12-bit pc-relative reloc with 2895 the right 3 bits assumed to be 0. 2896ENUM 2897 BFD_RELOC_D30V_15_PCREL_R 2898ENUMDOC 2899 This is a 12-bit pc-relative reloc with 2900 the right 3 bits assumed to be 0. Same 2901 as the previous reloc but on the right side 2902 of the container. 2903ENUM 2904 BFD_RELOC_D30V_21 2905ENUMDOC 2906 This is an 18-bit absolute reloc with 2907 the right 3 bits assumed to be 0. 2908ENUM 2909 BFD_RELOC_D30V_21_PCREL 2910ENUMDOC 2911 This is an 18-bit pc-relative reloc with 2912 the right 3 bits assumed to be 0. 2913ENUM 2914 BFD_RELOC_D30V_21_PCREL_R 2915ENUMDOC 2916 This is an 18-bit pc-relative reloc with 2917 the right 3 bits assumed to be 0. Same 2918 as the previous reloc but on the right side 2919 of the container. 2920ENUM 2921 BFD_RELOC_D30V_32 2922ENUMDOC 2923 This is a 32-bit absolute reloc. 2924ENUM 2925 BFD_RELOC_D30V_32_PCREL 2926ENUMDOC 2927 This is a 32-bit pc-relative reloc. 2928 2929ENUM 2930 BFD_RELOC_DLX_HI16_S 2931ENUMDOC 2932 DLX relocs 2933ENUM 2934 BFD_RELOC_DLX_LO16 2935ENUMDOC 2936 DLX relocs 2937ENUM 2938 BFD_RELOC_DLX_JMP26 2939ENUMDOC 2940 DLX relocs 2941 2942ENUM 2943 BFD_RELOC_M32R_24 2944ENUMDOC 2945 Renesas M32R (formerly Mitsubishi M32R) relocs. 2946 This is a 24 bit absolute address. 2947ENUM 2948 BFD_RELOC_M32R_10_PCREL 2949ENUMDOC 2950 This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0. 2951ENUM 2952 BFD_RELOC_M32R_18_PCREL 2953ENUMDOC 2954 This is an 18-bit reloc with the right 2 bits assumed to be 0. 2955ENUM 2956 BFD_RELOC_M32R_26_PCREL 2957ENUMDOC 2958 This is a 26-bit reloc with the right 2 bits assumed to be 0. 2959ENUM 2960 BFD_RELOC_M32R_HI16_ULO 2961ENUMDOC 2962 This is a 16-bit reloc containing the high 16 bits of an address 2963 used when the lower 16 bits are treated as unsigned. 2964ENUM 2965 BFD_RELOC_M32R_HI16_SLO 2966ENUMDOC 2967 This is a 16-bit reloc containing the high 16 bits of an address 2968 used when the lower 16 bits are treated as signed. 2969ENUM 2970 BFD_RELOC_M32R_LO16 2971ENUMDOC 2972 This is a 16-bit reloc containing the lower 16 bits of an address. 2973ENUM 2974 BFD_RELOC_M32R_SDA16 2975ENUMDOC 2976 This is a 16-bit reloc containing the small data area offset for use in 2977 add3, load, and store instructions. 2978ENUM 2979 BFD_RELOC_M32R_GOT24 2980ENUMX 2981 BFD_RELOC_M32R_26_PLTREL 2982ENUMX 2983 BFD_RELOC_M32R_COPY 2984ENUMX 2985 BFD_RELOC_M32R_GLOB_DAT 2986ENUMX 2987 BFD_RELOC_M32R_JMP_SLOT 2988ENUMX 2989 BFD_RELOC_M32R_RELATIVE 2990ENUMX 2991 BFD_RELOC_M32R_GOTOFF 2992ENUMX 2993 BFD_RELOC_M32R_GOTOFF_HI_ULO 2994ENUMX 2995 BFD_RELOC_M32R_GOTOFF_HI_SLO 2996ENUMX 2997 BFD_RELOC_M32R_GOTOFF_LO 2998ENUMX 2999 BFD_RELOC_M32R_GOTPC24 3000ENUMX 3001 BFD_RELOC_M32R_GOT16_HI_ULO 3002ENUMX 3003 BFD_RELOC_M32R_GOT16_HI_SLO 3004ENUMX 3005 BFD_RELOC_M32R_GOT16_LO 3006ENUMX 3007 BFD_RELOC_M32R_GOTPC_HI_ULO 3008ENUMX 3009 BFD_RELOC_M32R_GOTPC_HI_SLO 3010ENUMX 3011 BFD_RELOC_M32R_GOTPC_LO 3012ENUMDOC 3013 For PIC. 3014 3015 3016ENUM 3017 BFD_RELOC_V850_9_PCREL 3018ENUMDOC 3019 This is a 9-bit reloc 3020ENUM 3021 BFD_RELOC_V850_22_PCREL 3022ENUMDOC 3023 This is a 22-bit reloc 3024 3025ENUM 3026 BFD_RELOC_V850_SDA_16_16_OFFSET 3027ENUMDOC 3028 This is a 16 bit offset from the short data area pointer. 3029ENUM 3030 BFD_RELOC_V850_SDA_15_16_OFFSET 3031ENUMDOC 3032 This is a 16 bit offset (of which only 15 bits are used) from the 3033 short data area pointer. 3034ENUM 3035 BFD_RELOC_V850_ZDA_16_16_OFFSET 3036ENUMDOC 3037 This is a 16 bit offset from the zero data area pointer. 3038ENUM 3039 BFD_RELOC_V850_ZDA_15_16_OFFSET 3040ENUMDOC 3041 This is a 16 bit offset (of which only 15 bits are used) from the 3042 zero data area pointer. 3043ENUM 3044 BFD_RELOC_V850_TDA_6_8_OFFSET 3045ENUMDOC 3046 This is an 8 bit offset (of which only 6 bits are used) from the 3047 tiny data area pointer. 3048ENUM 3049 BFD_RELOC_V850_TDA_7_8_OFFSET 3050ENUMDOC 3051 This is an 8bit offset (of which only 7 bits are used) from the tiny 3052 data area pointer. 3053ENUM 3054 BFD_RELOC_V850_TDA_7_7_OFFSET 3055ENUMDOC 3056 This is a 7 bit offset from the tiny data area pointer. 3057ENUM 3058 BFD_RELOC_V850_TDA_16_16_OFFSET 3059ENUMDOC 3060 This is a 16 bit offset from the tiny data area pointer. 3061COMMENT 3062ENUM 3063 BFD_RELOC_V850_TDA_4_5_OFFSET 3064ENUMDOC 3065 This is a 5 bit offset (of which only 4 bits are used) from the tiny 3066 data area pointer. 3067ENUM 3068 BFD_RELOC_V850_TDA_4_4_OFFSET 3069ENUMDOC 3070 This is a 4 bit offset from the tiny data area pointer. 3071ENUM 3072 BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET 3073ENUMDOC 3074 This is a 16 bit offset from the short data area pointer, with the 3075 bits placed non-contiguously in the instruction. 3076ENUM 3077 BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET 3078ENUMDOC 3079 This is a 16 bit offset from the zero data area pointer, with the 3080 bits placed non-contiguously in the instruction. 3081ENUM 3082 BFD_RELOC_V850_CALLT_6_7_OFFSET 3083ENUMDOC 3084 This is a 6 bit offset from the call table base pointer. 3085ENUM 3086 BFD_RELOC_V850_CALLT_16_16_OFFSET 3087ENUMDOC 3088 This is a 16 bit offset from the call table base pointer. 3089ENUM 3090 BFD_RELOC_V850_LONGCALL 3091ENUMDOC 3092 Used for relaxing indirect function calls. 3093ENUM 3094 BFD_RELOC_V850_LONGJUMP 3095ENUMDOC 3096 Used for relaxing indirect jumps. 3097ENUM 3098 BFD_RELOC_V850_ALIGN 3099ENUMDOC 3100 Used to maintain alignment whilst relaxing. 3101ENUM 3102 BFD_RELOC_MN10300_32_PCREL 3103ENUMDOC 3104 This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the 3105 instruction. 3106ENUM 3107 BFD_RELOC_MN10300_16_PCREL 3108ENUMDOC 3109 This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the 3110 instruction. 3111 3112ENUM 3113 BFD_RELOC_TIC30_LDP 3114ENUMDOC 3115 This is a 8bit DP reloc for the tms320c30, where the most 3116 significant 8 bits of a 24 bit word are placed into the least 3117 significant 8 bits of the opcode. 3118 3119ENUM 3120 BFD_RELOC_TIC54X_PARTLS7 3121ENUMDOC 3122 This is a 7bit reloc for the tms320c54x, where the least 3123 significant 7 bits of a 16 bit word are placed into the least 3124 significant 7 bits of the opcode. 3125 3126ENUM 3127 BFD_RELOC_TIC54X_PARTMS9 3128ENUMDOC 3129 This is a 9bit DP reloc for the tms320c54x, where the most 3130 significant 9 bits of a 16 bit word are placed into the least 3131 significant 9 bits of the opcode. 3132 3133ENUM 3134 BFD_RELOC_TIC54X_23 3135ENUMDOC 3136 This is an extended address 23-bit reloc for the tms320c54x. 3137 3138ENUM 3139 BFD_RELOC_TIC54X_16_OF_23 3140ENUMDOC 3141 This is a 16-bit reloc for the tms320c54x, where the least 3142 significant 16 bits of a 23-bit extended address are placed into 3143 the opcode. 3144 3145ENUM 3146 BFD_RELOC_TIC54X_MS7_OF_23 3147ENUMDOC 3148 This is a reloc for the tms320c54x, where the most 3149 significant 7 bits of a 23-bit extended address are placed into 3150 the opcode. 3151 3152ENUM 3153 BFD_RELOC_FR30_48 3154ENUMDOC 3155 This is a 48 bit reloc for the FR30 that stores 32 bits. 3156ENUM 3157 BFD_RELOC_FR30_20 3158ENUMDOC 3159 This is a 32 bit reloc for the FR30 that stores 20 bits split up into 3160 two sections. 3161ENUM 3162 BFD_RELOC_FR30_6_IN_4 3163ENUMDOC 3164 This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in 3165 4 bits. 3166ENUM 3167 BFD_RELOC_FR30_8_IN_8 3168ENUMDOC 3169 This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset 3170 into 8 bits. 3171ENUM 3172 BFD_RELOC_FR30_9_IN_8 3173ENUMDOC 3174 This is a 16 bit reloc for the FR30 that stores a 9 bit short offset 3175 into 8 bits. 3176ENUM 3177 BFD_RELOC_FR30_10_IN_8 3178ENUMDOC 3179 This is a 16 bit reloc for the FR30 that stores a 10 bit word offset 3180 into 8 bits. 3181ENUM 3182 BFD_RELOC_FR30_9_PCREL 3183ENUMDOC 3184 This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative 3185 short offset into 8 bits. 3186ENUM 3187 BFD_RELOC_FR30_12_PCREL 3188ENUMDOC 3189 This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative 3190 short offset into 11 bits. 3191 3192ENUM 3193 BFD_RELOC_MCORE_PCREL_IMM8BY4 3194ENUMX 3195 BFD_RELOC_MCORE_PCREL_IMM11BY2 3196ENUMX 3197 BFD_RELOC_MCORE_PCREL_IMM4BY2 3198ENUMX 3199 BFD_RELOC_MCORE_PCREL_32 3200ENUMX 3201 BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2 3202ENUMX 3203 BFD_RELOC_MCORE_RVA 3204ENUMDOC 3205 Motorola Mcore relocations. 3206 3207ENUM 3208 BFD_RELOC_MMIX_GETA 3209ENUMX 3210 BFD_RELOC_MMIX_GETA_1 3211ENUMX 3212 BFD_RELOC_MMIX_GETA_2 3213ENUMX 3214 BFD_RELOC_MMIX_GETA_3 3215ENUMDOC 3216 These are relocations for the GETA instruction. 3217ENUM 3218 BFD_RELOC_MMIX_CBRANCH 3219ENUMX 3220 BFD_RELOC_MMIX_CBRANCH_J 3221ENUMX 3222 BFD_RELOC_MMIX_CBRANCH_1 3223ENUMX 3224 BFD_RELOC_MMIX_CBRANCH_2 3225ENUMX 3226 BFD_RELOC_MMIX_CBRANCH_3 3227ENUMDOC 3228 These are relocations for a conditional branch instruction. 3229ENUM 3230 BFD_RELOC_MMIX_PUSHJ 3231ENUMX 3232 BFD_RELOC_MMIX_PUSHJ_1 3233ENUMX 3234 BFD_RELOC_MMIX_PUSHJ_2 3235ENUMX 3236 BFD_RELOC_MMIX_PUSHJ_3 3237ENUMX 3238 BFD_RELOC_MMIX_PUSHJ_STUBBABLE 3239ENUMDOC 3240 These are relocations for the PUSHJ instruction. 3241ENUM 3242 BFD_RELOC_MMIX_JMP 3243ENUMX 3244 BFD_RELOC_MMIX_JMP_1 3245ENUMX 3246 BFD_RELOC_MMIX_JMP_2 3247ENUMX 3248 BFD_RELOC_MMIX_JMP_3 3249ENUMDOC 3250 These are relocations for the JMP instruction. 3251ENUM 3252 BFD_RELOC_MMIX_ADDR19 3253ENUMDOC 3254 This is a relocation for a relative address as in a GETA instruction or 3255 a branch. 3256ENUM 3257 BFD_RELOC_MMIX_ADDR27 3258ENUMDOC 3259 This is a relocation for a relative address as in a JMP instruction. 3260ENUM 3261 BFD_RELOC_MMIX_REG_OR_BYTE 3262ENUMDOC 3263 This is a relocation for an instruction field that may be a general 3264 register or a value 0..255. 3265ENUM 3266 BFD_RELOC_MMIX_REG 3267ENUMDOC 3268 This is a relocation for an instruction field that may be a general 3269 register. 3270ENUM 3271 BFD_RELOC_MMIX_BASE_PLUS_OFFSET 3272ENUMDOC 3273 This is a relocation for two instruction fields holding a register and 3274 an offset, the equivalent of the relocation. 3275ENUM 3276 BFD_RELOC_MMIX_LOCAL 3277ENUMDOC 3278 This relocation is an assertion that the expression is not allocated as 3279 a global register. It does not modify contents. 3280 3281ENUM 3282 BFD_RELOC_AVR_7_PCREL 3283ENUMDOC 3284 This is a 16 bit reloc for the AVR that stores 8 bit pc relative 3285 short offset into 7 bits. 3286ENUM 3287 BFD_RELOC_AVR_13_PCREL 3288ENUMDOC 3289 This is a 16 bit reloc for the AVR that stores 13 bit pc relative 3290 short offset into 12 bits. 3291ENUM 3292 BFD_RELOC_AVR_16_PM 3293ENUMDOC 3294 This is a 16 bit reloc for the AVR that stores 17 bit value (usually 3295 program memory address) into 16 bits. 3296ENUM 3297 BFD_RELOC_AVR_LO8_LDI 3298ENUMDOC 3299 This is a 16 bit reloc for the AVR that stores 8 bit value (usually 3300 data memory address) into 8 bit immediate value of LDI insn. 3301ENUM 3302 BFD_RELOC_AVR_HI8_LDI 3303ENUMDOC 3304 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit 3305 of data memory address) into 8 bit immediate value of LDI insn. 3306ENUM 3307 BFD_RELOC_AVR_HH8_LDI 3308ENUMDOC 3309 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit 3310 of program memory address) into 8 bit immediate value of LDI insn. 3311ENUM 3312 BFD_RELOC_AVR_LO8_LDI_NEG 3313ENUMDOC 3314 This is a 16 bit reloc for the AVR that stores negated 8 bit value 3315 (usually data memory address) into 8 bit immediate value of SUBI insn. 3316ENUM 3317 BFD_RELOC_AVR_HI8_LDI_NEG 3318ENUMDOC 3319 This is a 16 bit reloc for the AVR that stores negated 8 bit value 3320 (high 8 bit of data memory address) into 8 bit immediate value of 3321 SUBI insn. 3322ENUM 3323 BFD_RELOC_AVR_HH8_LDI_NEG 3324ENUMDOC 3325 This is a 16 bit reloc for the AVR that stores negated 8 bit value 3326 (most high 8 bit of program memory address) into 8 bit immediate value 3327 of LDI or SUBI insn. 3328ENUM 3329 BFD_RELOC_AVR_LO8_LDI_PM 3330ENUMDOC 3331 This is a 16 bit reloc for the AVR that stores 8 bit value (usually 3332 command address) into 8 bit immediate value of LDI insn. 3333ENUM 3334 BFD_RELOC_AVR_HI8_LDI_PM 3335ENUMDOC 3336 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit 3337 of command address) into 8 bit immediate value of LDI insn. 3338ENUM 3339 BFD_RELOC_AVR_HH8_LDI_PM 3340ENUMDOC 3341 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit 3342 of command address) into 8 bit immediate value of LDI insn. 3343ENUM 3344 BFD_RELOC_AVR_LO8_LDI_PM_NEG 3345ENUMDOC 3346 This is a 16 bit reloc for the AVR that stores negated 8 bit value 3347 (usually command address) into 8 bit immediate value of SUBI insn. 3348ENUM 3349 BFD_RELOC_AVR_HI8_LDI_PM_NEG 3350ENUMDOC 3351 This is a 16 bit reloc for the AVR that stores negated 8 bit value 3352 (high 8 bit of 16 bit command address) into 8 bit immediate value 3353 of SUBI insn. 3354ENUM 3355 BFD_RELOC_AVR_HH8_LDI_PM_NEG 3356ENUMDOC 3357 This is a 16 bit reloc for the AVR that stores negated 8 bit value 3358 (high 6 bit of 22 bit command address) into 8 bit immediate 3359 value of SUBI insn. 3360ENUM 3361 BFD_RELOC_AVR_CALL 3362ENUMDOC 3363 This is a 32 bit reloc for the AVR that stores 23 bit value 3364 into 22 bits. 3365 3366ENUM 3367 BFD_RELOC_390_12 3368ENUMDOC 3369 Direct 12 bit. 3370ENUM 3371 BFD_RELOC_390_GOT12 3372ENUMDOC 3373 12 bit GOT offset. 3374ENUM 3375 BFD_RELOC_390_PLT32 3376ENUMDOC 3377 32 bit PC relative PLT address. 3378ENUM 3379 BFD_RELOC_390_COPY 3380ENUMDOC 3381 Copy symbol at runtime. 3382ENUM 3383 BFD_RELOC_390_GLOB_DAT 3384ENUMDOC 3385 Create GOT entry. 3386ENUM 3387 BFD_RELOC_390_JMP_SLOT 3388ENUMDOC 3389 Create PLT entry. 3390ENUM 3391 BFD_RELOC_390_RELATIVE 3392ENUMDOC 3393 Adjust by program base. 3394ENUM 3395 BFD_RELOC_390_GOTPC 3396ENUMDOC 3397 32 bit PC relative offset to GOT. 3398ENUM 3399 BFD_RELOC_390_GOT16 3400ENUMDOC 3401 16 bit GOT offset. 3402ENUM 3403 BFD_RELOC_390_PC16DBL 3404ENUMDOC 3405 PC relative 16 bit shifted by 1. 3406ENUM 3407 BFD_RELOC_390_PLT16DBL 3408ENUMDOC 3409 16 bit PC rel. PLT shifted by 1. 3410ENUM 3411 BFD_RELOC_390_PC32DBL 3412ENUMDOC 3413 PC relative 32 bit shifted by 1. 3414ENUM 3415 BFD_RELOC_390_PLT32DBL 3416ENUMDOC 3417 32 bit PC rel. PLT shifted by 1. 3418ENUM 3419 BFD_RELOC_390_GOTPCDBL 3420ENUMDOC 3421 32 bit PC rel. GOT shifted by 1. 3422ENUM 3423 BFD_RELOC_390_GOT64 3424ENUMDOC 3425 64 bit GOT offset. 3426ENUM 3427 BFD_RELOC_390_PLT64 3428ENUMDOC 3429 64 bit PC relative PLT address. 3430ENUM 3431 BFD_RELOC_390_GOTENT 3432ENUMDOC 3433 32 bit rel. offset to GOT entry. 3434ENUM 3435 BFD_RELOC_390_GOTOFF64 3436ENUMDOC 3437 64 bit offset to GOT. 3438ENUM 3439 BFD_RELOC_390_GOTPLT12 3440ENUMDOC 3441 12-bit offset to symbol-entry within GOT, with PLT handling. 3442ENUM 3443 BFD_RELOC_390_GOTPLT16 3444ENUMDOC 3445 16-bit offset to symbol-entry within GOT, with PLT handling. 3446ENUM 3447 BFD_RELOC_390_GOTPLT32 3448ENUMDOC 3449 32-bit offset to symbol-entry within GOT, with PLT handling. 3450ENUM 3451 BFD_RELOC_390_GOTPLT64 3452ENUMDOC 3453 64-bit offset to symbol-entry within GOT, with PLT handling. 3454ENUM 3455 BFD_RELOC_390_GOTPLTENT 3456ENUMDOC 3457 32-bit rel. offset to symbol-entry within GOT, with PLT handling. 3458ENUM 3459 BFD_RELOC_390_PLTOFF16 3460ENUMDOC 3461 16-bit rel. offset from the GOT to a PLT entry. 3462ENUM 3463 BFD_RELOC_390_PLTOFF32 3464ENUMDOC 3465 32-bit rel. offset from the GOT to a PLT entry. 3466ENUM 3467 BFD_RELOC_390_PLTOFF64 3468ENUMDOC 3469 64-bit rel. offset from the GOT to a PLT entry. 3470 3471ENUM 3472 BFD_RELOC_390_TLS_LOAD 3473ENUMX 3474 BFD_RELOC_390_TLS_GDCALL 3475ENUMX 3476 BFD_RELOC_390_TLS_LDCALL 3477ENUMX 3478 BFD_RELOC_390_TLS_GD32 3479ENUMX 3480 BFD_RELOC_390_TLS_GD64 3481ENUMX 3482 BFD_RELOC_390_TLS_GOTIE12 3483ENUMX 3484 BFD_RELOC_390_TLS_GOTIE32 3485ENUMX 3486 BFD_RELOC_390_TLS_GOTIE64 3487ENUMX 3488 BFD_RELOC_390_TLS_LDM32 3489ENUMX 3490 BFD_RELOC_390_TLS_LDM64 3491ENUMX 3492 BFD_RELOC_390_TLS_IE32 3493ENUMX 3494 BFD_RELOC_390_TLS_IE64 3495ENUMX 3496 BFD_RELOC_390_TLS_IEENT 3497ENUMX 3498 BFD_RELOC_390_TLS_LE32 3499ENUMX 3500 BFD_RELOC_390_TLS_LE64 3501ENUMX 3502 BFD_RELOC_390_TLS_LDO32 3503ENUMX 3504 BFD_RELOC_390_TLS_LDO64 3505ENUMX 3506 BFD_RELOC_390_TLS_DTPMOD 3507ENUMX 3508 BFD_RELOC_390_TLS_DTPOFF 3509ENUMX 3510 BFD_RELOC_390_TLS_TPOFF 3511ENUMDOC 3512 s390 tls relocations. 3513 3514ENUM 3515 BFD_RELOC_390_20 3516ENUMX 3517 BFD_RELOC_390_GOT20 3518ENUMX 3519 BFD_RELOC_390_GOTPLT20 3520ENUMX 3521 BFD_RELOC_390_TLS_GOTIE20 3522ENUMDOC 3523 Long displacement extension. 3524 3525ENUM 3526 BFD_RELOC_IP2K_FR9 3527ENUMDOC 3528 Scenix IP2K - 9-bit register number / data address 3529ENUM 3530 BFD_RELOC_IP2K_BANK 3531ENUMDOC 3532 Scenix IP2K - 4-bit register/data bank number 3533ENUM 3534 BFD_RELOC_IP2K_ADDR16CJP 3535ENUMDOC 3536 Scenix IP2K - low 13 bits of instruction word address 3537ENUM 3538 BFD_RELOC_IP2K_PAGE3 3539ENUMDOC 3540 Scenix IP2K - high 3 bits of instruction word address 3541ENUM 3542 BFD_RELOC_IP2K_LO8DATA 3543ENUMX 3544 BFD_RELOC_IP2K_HI8DATA 3545ENUMX 3546 BFD_RELOC_IP2K_EX8DATA 3547ENUMDOC 3548 Scenix IP2K - ext/low/high 8 bits of data address 3549ENUM 3550 BFD_RELOC_IP2K_LO8INSN 3551ENUMX 3552 BFD_RELOC_IP2K_HI8INSN 3553ENUMDOC 3554 Scenix IP2K - low/high 8 bits of instruction word address 3555ENUM 3556 BFD_RELOC_IP2K_PC_SKIP 3557ENUMDOC 3558 Scenix IP2K - even/odd PC modifier to modify snb pcl.0 3559ENUM 3560 BFD_RELOC_IP2K_TEXT 3561ENUMDOC 3562 Scenix IP2K - 16 bit word address in text section. 3563ENUM 3564 BFD_RELOC_IP2K_FR_OFFSET 3565ENUMDOC 3566 Scenix IP2K - 7-bit sp or dp offset 3567ENUM 3568 BFD_RELOC_VPE4KMATH_DATA 3569ENUMX 3570 BFD_RELOC_VPE4KMATH_INSN 3571ENUMDOC 3572 Scenix VPE4K coprocessor - data/insn-space addressing 3573 3574ENUM 3575 BFD_RELOC_VTABLE_INHERIT 3576ENUMX 3577 BFD_RELOC_VTABLE_ENTRY 3578ENUMDOC 3579 These two relocations are used by the linker to determine which of 3580 the entries in a C++ virtual function table are actually used. When 3581 the --gc-sections option is given, the linker will zero out the entries 3582 that are not used, so that the code for those functions need not be 3583 included in the output. 3584 3585 VTABLE_INHERIT is a zero-space relocation used to describe to the 3586 linker the inheritance tree of a C++ virtual function table. The 3587 relocation's symbol should be the parent class' vtable, and the 3588 relocation should be located at the child vtable. 3589 3590 VTABLE_ENTRY is a zero-space relocation that describes the use of a 3591 virtual function table entry. The reloc's symbol should refer to the 3592 table of the class mentioned in the code. Off of that base, an offset 3593 describes the entry that is being used. For Rela hosts, this offset 3594 is stored in the reloc's addend. For Rel hosts, we are forced to put 3595 this offset in the reloc's section offset. 3596 3597ENUM 3598 BFD_RELOC_IA64_IMM14 3599ENUMX 3600 BFD_RELOC_IA64_IMM22 3601ENUMX 3602 BFD_RELOC_IA64_IMM64 3603ENUMX 3604 BFD_RELOC_IA64_DIR32MSB 3605ENUMX 3606 BFD_RELOC_IA64_DIR32LSB 3607ENUMX 3608 BFD_RELOC_IA64_DIR64MSB 3609ENUMX 3610 BFD_RELOC_IA64_DIR64LSB 3611ENUMX 3612 BFD_RELOC_IA64_GPREL22 3613ENUMX 3614 BFD_RELOC_IA64_GPREL64I 3615ENUMX 3616 BFD_RELOC_IA64_GPREL32MSB 3617ENUMX 3618 BFD_RELOC_IA64_GPREL32LSB 3619ENUMX 3620 BFD_RELOC_IA64_GPREL64MSB 3621ENUMX 3622 BFD_RELOC_IA64_GPREL64LSB 3623ENUMX 3624 BFD_RELOC_IA64_LTOFF22 3625ENUMX 3626 BFD_RELOC_IA64_LTOFF64I 3627ENUMX 3628 BFD_RELOC_IA64_PLTOFF22 3629ENUMX 3630 BFD_RELOC_IA64_PLTOFF64I 3631ENUMX 3632 BFD_RELOC_IA64_PLTOFF64MSB 3633ENUMX 3634 BFD_RELOC_IA64_PLTOFF64LSB 3635ENUMX 3636 BFD_RELOC_IA64_FPTR64I 3637ENUMX 3638 BFD_RELOC_IA64_FPTR32MSB 3639ENUMX 3640 BFD_RELOC_IA64_FPTR32LSB 3641ENUMX 3642 BFD_RELOC_IA64_FPTR64MSB 3643ENUMX 3644 BFD_RELOC_IA64_FPTR64LSB 3645ENUMX 3646 BFD_RELOC_IA64_PCREL21B 3647ENUMX 3648 BFD_RELOC_IA64_PCREL21BI 3649ENUMX 3650 BFD_RELOC_IA64_PCREL21M 3651ENUMX 3652 BFD_RELOC_IA64_PCREL21F 3653ENUMX 3654 BFD_RELOC_IA64_PCREL22 3655ENUMX 3656 BFD_RELOC_IA64_PCREL60B 3657ENUMX 3658 BFD_RELOC_IA64_PCREL64I 3659ENUMX 3660 BFD_RELOC_IA64_PCREL32MSB 3661ENUMX 3662 BFD_RELOC_IA64_PCREL32LSB 3663ENUMX 3664 BFD_RELOC_IA64_PCREL64MSB 3665ENUMX 3666 BFD_RELOC_IA64_PCREL64LSB 3667ENUMX 3668 BFD_RELOC_IA64_LTOFF_FPTR22 3669ENUMX 3670 BFD_RELOC_IA64_LTOFF_FPTR64I 3671ENUMX 3672 BFD_RELOC_IA64_LTOFF_FPTR32MSB 3673ENUMX 3674 BFD_RELOC_IA64_LTOFF_FPTR32LSB 3675ENUMX 3676 BFD_RELOC_IA64_LTOFF_FPTR64MSB 3677ENUMX 3678 BFD_RELOC_IA64_LTOFF_FPTR64LSB 3679ENUMX 3680 BFD_RELOC_IA64_SEGREL32MSB 3681ENUMX 3682 BFD_RELOC_IA64_SEGREL32LSB 3683ENUMX 3684 BFD_RELOC_IA64_SEGREL64MSB 3685ENUMX 3686 BFD_RELOC_IA64_SEGREL64LSB 3687ENUMX 3688 BFD_RELOC_IA64_SECREL32MSB 3689ENUMX 3690 BFD_RELOC_IA64_SECREL32LSB 3691ENUMX 3692 BFD_RELOC_IA64_SECREL64MSB 3693ENUMX 3694 BFD_RELOC_IA64_SECREL64LSB 3695ENUMX 3696 BFD_RELOC_IA64_REL32MSB 3697ENUMX 3698 BFD_RELOC_IA64_REL32LSB 3699ENUMX 3700 BFD_RELOC_IA64_REL64MSB 3701ENUMX 3702 BFD_RELOC_IA64_REL64LSB 3703ENUMX 3704 BFD_RELOC_IA64_LTV32MSB 3705ENUMX 3706 BFD_RELOC_IA64_LTV32LSB 3707ENUMX 3708 BFD_RELOC_IA64_LTV64MSB 3709ENUMX 3710 BFD_RELOC_IA64_LTV64LSB 3711ENUMX 3712 BFD_RELOC_IA64_IPLTMSB 3713ENUMX 3714 BFD_RELOC_IA64_IPLTLSB 3715ENUMX 3716 BFD_RELOC_IA64_COPY 3717ENUMX 3718 BFD_RELOC_IA64_LTOFF22X 3719ENUMX 3720 BFD_RELOC_IA64_LDXMOV 3721ENUMX 3722 BFD_RELOC_IA64_TPREL14 3723ENUMX 3724 BFD_RELOC_IA64_TPREL22 3725ENUMX 3726 BFD_RELOC_IA64_TPREL64I 3727ENUMX 3728 BFD_RELOC_IA64_TPREL64MSB 3729ENUMX 3730 BFD_RELOC_IA64_TPREL64LSB 3731ENUMX 3732 BFD_RELOC_IA64_LTOFF_TPREL22 3733ENUMX 3734 BFD_RELOC_IA64_DTPMOD64MSB 3735ENUMX 3736 BFD_RELOC_IA64_DTPMOD64LSB 3737ENUMX 3738 BFD_RELOC_IA64_LTOFF_DTPMOD22 3739ENUMX 3740 BFD_RELOC_IA64_DTPREL14 3741ENUMX 3742 BFD_RELOC_IA64_DTPREL22 3743ENUMX 3744 BFD_RELOC_IA64_DTPREL64I 3745ENUMX 3746 BFD_RELOC_IA64_DTPREL32MSB 3747ENUMX 3748 BFD_RELOC_IA64_DTPREL32LSB 3749ENUMX 3750 BFD_RELOC_IA64_DTPREL64MSB 3751ENUMX 3752 BFD_RELOC_IA64_DTPREL64LSB 3753ENUMX 3754 BFD_RELOC_IA64_LTOFF_DTPREL22 3755ENUMDOC 3756 Intel IA64 Relocations. 3757 3758ENUM 3759 BFD_RELOC_M68HC11_HI8 3760ENUMDOC 3761 Motorola 68HC11 reloc. 3762 This is the 8 bit high part of an absolute address. 3763ENUM 3764 BFD_RELOC_M68HC11_LO8 3765ENUMDOC 3766 Motorola 68HC11 reloc. 3767 This is the 8 bit low part of an absolute address. 3768ENUM 3769 BFD_RELOC_M68HC11_3B 3770ENUMDOC 3771 Motorola 68HC11 reloc. 3772 This is the 3 bit of a value. 3773ENUM 3774 BFD_RELOC_M68HC11_RL_JUMP 3775ENUMDOC 3776 Motorola 68HC11 reloc. 3777 This reloc marks the beginning of a jump/call instruction. 3778 It is used for linker relaxation to correctly identify beginning 3779 of instruction and change some branches to use PC-relative 3780 addressing mode. 3781ENUM 3782 BFD_RELOC_M68HC11_RL_GROUP 3783ENUMDOC 3784 Motorola 68HC11 reloc. 3785 This reloc marks a group of several instructions that gcc generates 3786 and for which the linker relaxation pass can modify and/or remove 3787 some of them. 3788ENUM 3789 BFD_RELOC_M68HC11_LO16 3790ENUMDOC 3791 Motorola 68HC11 reloc. 3792 This is the 16-bit lower part of an address. It is used for 'call' 3793 instruction to specify the symbol address without any special 3794 transformation (due to memory bank window). 3795ENUM 3796 BFD_RELOC_M68HC11_PAGE 3797ENUMDOC 3798 Motorola 68HC11 reloc. 3799 This is a 8-bit reloc that specifies the page number of an address. 3800 It is used by 'call' instruction to specify the page number of 3801 the symbol. 3802ENUM 3803 BFD_RELOC_M68HC11_24 3804ENUMDOC 3805 Motorola 68HC11 reloc. 3806 This is a 24-bit reloc that represents the address with a 16-bit 3807 value and a 8-bit page number. The symbol address is transformed 3808 to follow the 16K memory bank of 68HC12 (seen as mapped in the window). 3809ENUM 3810 BFD_RELOC_M68HC12_5B 3811ENUMDOC 3812 Motorola 68HC12 reloc. 3813 This is the 5 bits of a value. 3814 3815ENUM 3816 BFD_RELOC_16C_NUM08 3817ENUMX 3818 BFD_RELOC_16C_NUM08_C 3819ENUMX 3820 BFD_RELOC_16C_NUM16 3821ENUMX 3822 BFD_RELOC_16C_NUM16_C 3823ENUMX 3824 BFD_RELOC_16C_NUM32 3825ENUMX 3826 BFD_RELOC_16C_NUM32_C 3827ENUMX 3828 BFD_RELOC_16C_DISP04 3829ENUMX 3830 BFD_RELOC_16C_DISP04_C 3831ENUMX 3832 BFD_RELOC_16C_DISP08 3833ENUMX 3834 BFD_RELOC_16C_DISP08_C 3835ENUMX 3836 BFD_RELOC_16C_DISP16 3837ENUMX 3838 BFD_RELOC_16C_DISP16_C 3839ENUMX 3840 BFD_RELOC_16C_DISP24 3841ENUMX 3842 BFD_RELOC_16C_DISP24_C 3843ENUMX 3844 BFD_RELOC_16C_DISP24a 3845ENUMX 3846 BFD_RELOC_16C_DISP24a_C 3847ENUMX 3848 BFD_RELOC_16C_REG04 3849ENUMX 3850 BFD_RELOC_16C_REG04_C 3851ENUMX 3852 BFD_RELOC_16C_REG04a 3853ENUMX 3854 BFD_RELOC_16C_REG04a_C 3855ENUMX 3856 BFD_RELOC_16C_REG14 3857ENUMX 3858 BFD_RELOC_16C_REG14_C 3859ENUMX 3860 BFD_RELOC_16C_REG16 3861ENUMX 3862 BFD_RELOC_16C_REG16_C 3863ENUMX 3864 BFD_RELOC_16C_REG20 3865ENUMX 3866 BFD_RELOC_16C_REG20_C 3867ENUMX 3868 BFD_RELOC_16C_ABS20 3869ENUMX 3870 BFD_RELOC_16C_ABS20_C 3871ENUMX 3872 BFD_RELOC_16C_ABS24 3873ENUMX 3874 BFD_RELOC_16C_ABS24_C 3875ENUMX 3876 BFD_RELOC_16C_IMM04 3877ENUMX 3878 BFD_RELOC_16C_IMM04_C 3879ENUMX 3880 BFD_RELOC_16C_IMM16 3881ENUMX 3882 BFD_RELOC_16C_IMM16_C 3883ENUMX 3884 BFD_RELOC_16C_IMM20 3885ENUMX 3886 BFD_RELOC_16C_IMM20_C 3887ENUMX 3888 BFD_RELOC_16C_IMM24 3889ENUMX 3890 BFD_RELOC_16C_IMM24_C 3891ENUMX 3892 BFD_RELOC_16C_IMM32 3893ENUMX 3894 BFD_RELOC_16C_IMM32_C 3895ENUMDOC 3896 NS CR16C Relocations. 3897 3898ENUM 3899 BFD_RELOC_CRX_REL4 3900ENUMX 3901 BFD_RELOC_CRX_REL8 3902ENUMX 3903 BFD_RELOC_CRX_REL8_CMP 3904ENUMX 3905 BFD_RELOC_CRX_REL16 3906ENUMX 3907 BFD_RELOC_CRX_REL24 3908ENUMX 3909 BFD_RELOC_CRX_REL32 3910ENUMX 3911 BFD_RELOC_CRX_REGREL12 3912ENUMX 3913 BFD_RELOC_CRX_REGREL22 3914ENUMX 3915 BFD_RELOC_CRX_REGREL28 3916ENUMX 3917 BFD_RELOC_CRX_REGREL32 3918ENUMX 3919 BFD_RELOC_CRX_ABS16 3920ENUMX 3921 BFD_RELOC_CRX_ABS32 3922ENUMX 3923 BFD_RELOC_CRX_NUM8 3924ENUMX 3925 BFD_RELOC_CRX_NUM16 3926ENUMX 3927 BFD_RELOC_CRX_NUM32 3928ENUMX 3929 BFD_RELOC_CRX_IMM16 3930ENUMX 3931 BFD_RELOC_CRX_IMM32 3932ENUMX 3933 BFD_RELOC_CRX_SWITCH8 3934ENUMX 3935 BFD_RELOC_CRX_SWITCH16 3936ENUMX 3937 BFD_RELOC_CRX_SWITCH32 3938ENUMDOC 3939 NS CRX Relocations. 3940 3941ENUM 3942 BFD_RELOC_CRIS_BDISP8 3943ENUMX 3944 BFD_RELOC_CRIS_UNSIGNED_5 3945ENUMX 3946 BFD_RELOC_CRIS_SIGNED_6 3947ENUMX 3948 BFD_RELOC_CRIS_UNSIGNED_6 3949ENUMX 3950 BFD_RELOC_CRIS_UNSIGNED_4 3951ENUMDOC 3952 These relocs are only used within the CRIS assembler. They are not 3953 (at present) written to any object files. 3954ENUM 3955 BFD_RELOC_CRIS_COPY 3956ENUMX 3957 BFD_RELOC_CRIS_GLOB_DAT 3958ENUMX 3959 BFD_RELOC_CRIS_JUMP_SLOT 3960ENUMX 3961 BFD_RELOC_CRIS_RELATIVE 3962ENUMDOC 3963 Relocs used in ELF shared libraries for CRIS. 3964ENUM 3965 BFD_RELOC_CRIS_32_GOT 3966ENUMDOC 3967 32-bit offset to symbol-entry within GOT. 3968ENUM 3969 BFD_RELOC_CRIS_16_GOT 3970ENUMDOC 3971 16-bit offset to symbol-entry within GOT. 3972ENUM 3973 BFD_RELOC_CRIS_32_GOTPLT 3974ENUMDOC 3975 32-bit offset to symbol-entry within GOT, with PLT handling. 3976ENUM 3977 BFD_RELOC_CRIS_16_GOTPLT 3978ENUMDOC 3979 16-bit offset to symbol-entry within GOT, with PLT handling. 3980ENUM 3981 BFD_RELOC_CRIS_32_GOTREL 3982ENUMDOC 3983 32-bit offset to symbol, relative to GOT. 3984ENUM 3985 BFD_RELOC_CRIS_32_PLT_GOTREL 3986ENUMDOC 3987 32-bit offset to symbol with PLT entry, relative to GOT. 3988ENUM 3989 BFD_RELOC_CRIS_32_PLT_PCREL 3990ENUMDOC 3991 32-bit offset to symbol with PLT entry, relative to this relocation. 3992 3993ENUM 3994 BFD_RELOC_860_COPY 3995ENUMX 3996 BFD_RELOC_860_GLOB_DAT 3997ENUMX 3998 BFD_RELOC_860_JUMP_SLOT 3999ENUMX 4000 BFD_RELOC_860_RELATIVE 4001ENUMX 4002 BFD_RELOC_860_PC26 4003ENUMX 4004 BFD_RELOC_860_PLT26 4005ENUMX 4006 BFD_RELOC_860_PC16 4007ENUMX 4008 BFD_RELOC_860_LOW0 4009ENUMX 4010 BFD_RELOC_860_SPLIT0 4011ENUMX 4012 BFD_RELOC_860_LOW1 4013ENUMX 4014 BFD_RELOC_860_SPLIT1 4015ENUMX 4016 BFD_RELOC_860_LOW2 4017ENUMX 4018 BFD_RELOC_860_SPLIT2 4019ENUMX 4020 BFD_RELOC_860_LOW3 4021ENUMX 4022 BFD_RELOC_860_LOGOT0 4023ENUMX 4024 BFD_RELOC_860_SPGOT0 4025ENUMX 4026 BFD_RELOC_860_LOGOT1 4027ENUMX 4028 BFD_RELOC_860_SPGOT1 4029ENUMX 4030 BFD_RELOC_860_LOGOTOFF0 4031ENUMX 4032 BFD_RELOC_860_SPGOTOFF0 4033ENUMX 4034 BFD_RELOC_860_LOGOTOFF1 4035ENUMX 4036 BFD_RELOC_860_SPGOTOFF1 4037ENUMX 4038 BFD_RELOC_860_LOGOTOFF2 4039ENUMX 4040 BFD_RELOC_860_LOGOTOFF3 4041ENUMX 4042 BFD_RELOC_860_LOPC 4043ENUMX 4044 BFD_RELOC_860_HIGHADJ 4045ENUMX 4046 BFD_RELOC_860_HAGOT 4047ENUMX 4048 BFD_RELOC_860_HAGOTOFF 4049ENUMX 4050 BFD_RELOC_860_HAPC 4051ENUMX 4052 BFD_RELOC_860_HIGH 4053ENUMX 4054 BFD_RELOC_860_HIGOT 4055ENUMX 4056 BFD_RELOC_860_HIGOTOFF 4057ENUMDOC 4058 Intel i860 Relocations. 4059 4060ENUM 4061 BFD_RELOC_OPENRISC_ABS_26 4062ENUMX 4063 BFD_RELOC_OPENRISC_REL_26 4064ENUMDOC 4065 OpenRISC Relocations. 4066 4067ENUM 4068 BFD_RELOC_H8_DIR16A8 4069ENUMX 4070 BFD_RELOC_H8_DIR16R8 4071ENUMX 4072 BFD_RELOC_H8_DIR24A8 4073ENUMX 4074 BFD_RELOC_H8_DIR24R8 4075ENUMX 4076 BFD_RELOC_H8_DIR32A16 4077ENUMDOC 4078 H8 elf Relocations. 4079 4080ENUM 4081 BFD_RELOC_XSTORMY16_REL_12 4082ENUMX 4083 BFD_RELOC_XSTORMY16_12 4084ENUMX 4085 BFD_RELOC_XSTORMY16_24 4086ENUMX 4087 BFD_RELOC_XSTORMY16_FPTR16 4088ENUMDOC 4089 Sony Xstormy16 Relocations. 4090 4091ENUM 4092 BFD_RELOC_VAX_GLOB_DAT 4093ENUMX 4094 BFD_RELOC_VAX_JMP_SLOT 4095ENUMX 4096 BFD_RELOC_VAX_RELATIVE 4097ENUMDOC 4098 Relocations used by VAX ELF. 4099 4100ENUM 4101 BFD_RELOC_MSP430_10_PCREL 4102ENUMX 4103 BFD_RELOC_MSP430_16_PCREL 4104ENUMX 4105 BFD_RELOC_MSP430_16 4106ENUMX 4107 BFD_RELOC_MSP430_16_PCREL_BYTE 4108ENUMX 4109 BFD_RELOC_MSP430_16_BYTE 4110ENUMX 4111 BFD_RELOC_MSP430_2X_PCREL 4112ENUMX 4113 BFD_RELOC_MSP430_RL_PCREL 4114ENUMDOC 4115 msp430 specific relocation codes 4116 4117ENUM 4118 BFD_RELOC_IQ2000_OFFSET_16 4119ENUMX 4120 BFD_RELOC_IQ2000_OFFSET_21 4121ENUMX 4122 BFD_RELOC_IQ2000_UHI16 4123ENUMDOC 4124 IQ2000 Relocations. 4125 4126ENUM 4127 BFD_RELOC_XTENSA_RTLD 4128ENUMDOC 4129 Special Xtensa relocation used only by PLT entries in ELF shared 4130 objects to indicate that the runtime linker should set the value 4131 to one of its own internal functions or data structures. 4132ENUM 4133 BFD_RELOC_XTENSA_GLOB_DAT 4134ENUMX 4135 BFD_RELOC_XTENSA_JMP_SLOT 4136ENUMX 4137 BFD_RELOC_XTENSA_RELATIVE 4138ENUMDOC 4139 Xtensa relocations for ELF shared objects. 4140ENUM 4141 BFD_RELOC_XTENSA_PLT 4142ENUMDOC 4143 Xtensa relocation used in ELF object files for symbols that may require 4144 PLT entries. Otherwise, this is just a generic 32-bit relocation. 4145ENUM 4146 BFD_RELOC_XTENSA_DIFF8 4147ENUMX 4148 BFD_RELOC_XTENSA_DIFF16 4149ENUMX 4150 BFD_RELOC_XTENSA_DIFF32 4151ENUMDOC 4152 Xtensa relocations to mark the difference of two local symbols. 4153 These are only needed to support linker relaxation and can be ignored 4154 when not relaxing. The field is set to the value of the difference 4155 assuming no relaxation. The relocation encodes the position of the 4156 first symbol so the linker can determine whether to adjust the field 4157 value. 4158ENUM 4159 BFD_RELOC_XTENSA_SLOT0_OP 4160ENUMX 4161 BFD_RELOC_XTENSA_SLOT1_OP 4162ENUMX 4163 BFD_RELOC_XTENSA_SLOT2_OP 4164ENUMX 4165 BFD_RELOC_XTENSA_SLOT3_OP 4166ENUMX 4167 BFD_RELOC_XTENSA_SLOT4_OP 4168ENUMX 4169 BFD_RELOC_XTENSA_SLOT5_OP 4170ENUMX 4171 BFD_RELOC_XTENSA_SLOT6_OP 4172ENUMX 4173 BFD_RELOC_XTENSA_SLOT7_OP 4174ENUMX 4175 BFD_RELOC_XTENSA_SLOT8_OP 4176ENUMX 4177 BFD_RELOC_XTENSA_SLOT9_OP 4178ENUMX 4179 BFD_RELOC_XTENSA_SLOT10_OP 4180ENUMX 4181 BFD_RELOC_XTENSA_SLOT11_OP 4182ENUMX 4183 BFD_RELOC_XTENSA_SLOT12_OP 4184ENUMX 4185 BFD_RELOC_XTENSA_SLOT13_OP 4186ENUMX 4187 BFD_RELOC_XTENSA_SLOT14_OP 4188ENUMDOC 4189 Generic Xtensa relocations for instruction operands. Only the slot 4190 number is encoded in the relocation. The relocation applies to the 4191 last PC-relative immediate operand, or if there are no PC-relative 4192 immediates, to the last immediate operand. 4193ENUM 4194 BFD_RELOC_XTENSA_SLOT0_ALT 4195ENUMX 4196 BFD_RELOC_XTENSA_SLOT1_ALT 4197ENUMX 4198 BFD_RELOC_XTENSA_SLOT2_ALT 4199ENUMX 4200 BFD_RELOC_XTENSA_SLOT3_ALT 4201ENUMX 4202 BFD_RELOC_XTENSA_SLOT4_ALT 4203ENUMX 4204 BFD_RELOC_XTENSA_SLOT5_ALT 4205ENUMX 4206 BFD_RELOC_XTENSA_SLOT6_ALT 4207ENUMX 4208 BFD_RELOC_XTENSA_SLOT7_ALT 4209ENUMX 4210 BFD_RELOC_XTENSA_SLOT8_ALT 4211ENUMX 4212 BFD_RELOC_XTENSA_SLOT9_ALT 4213ENUMX 4214 BFD_RELOC_XTENSA_SLOT10_ALT 4215ENUMX 4216 BFD_RELOC_XTENSA_SLOT11_ALT 4217ENUMX 4218 BFD_RELOC_XTENSA_SLOT12_ALT 4219ENUMX 4220 BFD_RELOC_XTENSA_SLOT13_ALT 4221ENUMX 4222 BFD_RELOC_XTENSA_SLOT14_ALT 4223ENUMDOC 4224 Alternate Xtensa relocations. Only the slot is encoded in the 4225 relocation. The meaning of these relocations is opcode-specific. 4226ENUM 4227 BFD_RELOC_XTENSA_OP0 4228ENUMX 4229 BFD_RELOC_XTENSA_OP1 4230ENUMX 4231 BFD_RELOC_XTENSA_OP2 4232ENUMDOC 4233 Xtensa relocations for backward compatibility. These have all been 4234 replaced by BFD_RELOC_XTENSA_SLOT0_OP. 4235ENUM 4236 BFD_RELOC_XTENSA_ASM_EXPAND 4237ENUMDOC 4238 Xtensa relocation to mark that the assembler expanded the 4239 instructions from an original target. The expansion size is 4240 encoded in the reloc size. 4241ENUM 4242 BFD_RELOC_XTENSA_ASM_SIMPLIFY 4243ENUMDOC 4244 Xtensa relocation to mark that the linker should simplify 4245 assembler-expanded instructions. This is commonly used 4246 internally by the linker after analysis of a 4247 BFD_RELOC_XTENSA_ASM_EXPAND. 4248 4249ENDSENUM 4250 BFD_RELOC_UNUSED 4251CODE_FRAGMENT 4252. 4253.typedef enum bfd_reloc_code_real bfd_reloc_code_real_type; 4254*/ 4255 4256/* 4257FUNCTION 4258 bfd_reloc_type_lookup 4259 4260SYNOPSIS 4261 reloc_howto_type *bfd_reloc_type_lookup 4262 (bfd *abfd, bfd_reloc_code_real_type code); 4263 4264DESCRIPTION 4265 Return a pointer to a howto structure which, when 4266 invoked, will perform the relocation @var{code} on data from the 4267 architecture noted. 4268 4269*/ 4270 4271reloc_howto_type * 4272bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) 4273{ 4274 return BFD_SEND (abfd, reloc_type_lookup, (abfd, code)); 4275} 4276 4277static reloc_howto_type bfd_howto_32 = 4278HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE); 4279 4280/* 4281INTERNAL_FUNCTION 4282 bfd_default_reloc_type_lookup 4283 4284SYNOPSIS 4285 reloc_howto_type *bfd_default_reloc_type_lookup 4286 (bfd *abfd, bfd_reloc_code_real_type code); 4287 4288DESCRIPTION 4289 Provides a default relocation lookup routine for any architecture. 4290 4291*/ 4292 4293reloc_howto_type * 4294bfd_default_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) 4295{ 4296 switch (code) 4297 { 4298 case BFD_RELOC_CTOR: 4299 /* The type of reloc used in a ctor, which will be as wide as the 4300 address - so either a 64, 32, or 16 bitter. */ 4301 switch (bfd_get_arch_info (abfd)->bits_per_address) 4302 { 4303 case 64: 4304 BFD_FAIL (); 4305 case 32: 4306 return &bfd_howto_32; 4307 case 16: 4308 BFD_FAIL (); 4309 default: 4310 BFD_FAIL (); 4311 } 4312 default: 4313 BFD_FAIL (); 4314 } 4315 return NULL; 4316} 4317 4318/* 4319FUNCTION 4320 bfd_get_reloc_code_name 4321 4322SYNOPSIS 4323 const char *bfd_get_reloc_code_name (bfd_reloc_code_real_type code); 4324 4325DESCRIPTION 4326 Provides a printable name for the supplied relocation code. 4327 Useful mainly for printing error messages. 4328*/ 4329 4330const char * 4331bfd_get_reloc_code_name (bfd_reloc_code_real_type code) 4332{ 4333 if (code > BFD_RELOC_UNUSED) 4334 return 0; 4335 return bfd_reloc_code_real_names[code]; 4336} 4337 4338/* 4339INTERNAL_FUNCTION 4340 bfd_generic_relax_section 4341 4342SYNOPSIS 4343 bfd_boolean bfd_generic_relax_section 4344 (bfd *abfd, 4345 asection *section, 4346 struct bfd_link_info *, 4347 bfd_boolean *); 4348 4349DESCRIPTION 4350 Provides default handling for relaxing for back ends which 4351 don't do relaxing. 4352*/ 4353 4354bfd_boolean 4355bfd_generic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, 4356 asection *section ATTRIBUTE_UNUSED, 4357 struct bfd_link_info *link_info ATTRIBUTE_UNUSED, 4358 bfd_boolean *again) 4359{ 4360 *again = FALSE; 4361 return TRUE; 4362} 4363 4364/* 4365INTERNAL_FUNCTION 4366 bfd_generic_gc_sections 4367 4368SYNOPSIS 4369 bfd_boolean bfd_generic_gc_sections 4370 (bfd *, struct bfd_link_info *); 4371 4372DESCRIPTION 4373 Provides default handling for relaxing for back ends which 4374 don't do section gc -- i.e., does nothing. 4375*/ 4376 4377bfd_boolean 4378bfd_generic_gc_sections (bfd *abfd ATTRIBUTE_UNUSED, 4379 struct bfd_link_info *link_info ATTRIBUTE_UNUSED) 4380{ 4381 return TRUE; 4382} 4383 4384/* 4385INTERNAL_FUNCTION 4386 bfd_generic_merge_sections 4387 4388SYNOPSIS 4389 bfd_boolean bfd_generic_merge_sections 4390 (bfd *, struct bfd_link_info *); 4391 4392DESCRIPTION 4393 Provides default handling for SEC_MERGE section merging for back ends 4394 which don't have SEC_MERGE support -- i.e., does nothing. 4395*/ 4396 4397bfd_boolean 4398bfd_generic_merge_sections (bfd *abfd ATTRIBUTE_UNUSED, 4399 struct bfd_link_info *link_info ATTRIBUTE_UNUSED) 4400{ 4401 return TRUE; 4402} 4403 4404/* 4405INTERNAL_FUNCTION 4406 bfd_generic_get_relocated_section_contents 4407 4408SYNOPSIS 4409 bfd_byte *bfd_generic_get_relocated_section_contents 4410 (bfd *abfd, 4411 struct bfd_link_info *link_info, 4412 struct bfd_link_order *link_order, 4413 bfd_byte *data, 4414 bfd_boolean relocatable, 4415 asymbol **symbols); 4416 4417DESCRIPTION 4418 Provides default handling of relocation effort for back ends 4419 which can't be bothered to do it efficiently. 4420 4421*/ 4422 4423bfd_byte * 4424bfd_generic_get_relocated_section_contents (bfd *abfd, 4425 struct bfd_link_info *link_info, 4426 struct bfd_link_order *link_order, 4427 bfd_byte *data, 4428 bfd_boolean relocatable, 4429 asymbol **symbols) 4430{ 4431 /* Get enough memory to hold the stuff. */ 4432 bfd *input_bfd = link_order->u.indirect.section->owner; 4433 asection *input_section = link_order->u.indirect.section; 4434 4435 long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section); 4436 arelent **reloc_vector = NULL; 4437 long reloc_count; 4438 bfd_size_type sz; 4439 4440 if (reloc_size < 0) 4441 goto error_return; 4442 4443 reloc_vector = bfd_malloc (reloc_size); 4444 if (reloc_vector == NULL && reloc_size != 0) 4445 goto error_return; 4446 4447 /* Read in the section. */ 4448 sz = input_section->rawsize ? input_section->rawsize : input_section->size; 4449 if (!bfd_get_section_contents (input_bfd, input_section, data, 0, sz)) 4450 goto error_return; 4451 4452 reloc_count = bfd_canonicalize_reloc (input_bfd, 4453 input_section, 4454 reloc_vector, 4455 symbols); 4456 if (reloc_count < 0) 4457 goto error_return; 4458 4459 if (reloc_count > 0) 4460 { 4461 arelent **parent; 4462 for (parent = reloc_vector; *parent != NULL; parent++) 4463 { 4464 char *error_message = NULL; 4465 bfd_reloc_status_type r = 4466 bfd_perform_relocation (input_bfd, 4467 *parent, 4468 data, 4469 input_section, 4470 relocatable ? abfd : NULL, 4471 &error_message); 4472 4473 if (relocatable) 4474 { 4475 asection *os = input_section->output_section; 4476 4477 /* A partial link, so keep the relocs. */ 4478 os->orelocation[os->reloc_count] = *parent; 4479 os->reloc_count++; 4480 } 4481 4482 if (r != bfd_reloc_ok) 4483 { 4484 switch (r) 4485 { 4486 case bfd_reloc_undefined: 4487 if (!((*link_info->callbacks->undefined_symbol) 4488 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr), 4489 input_bfd, input_section, (*parent)->address, 4490 TRUE))) 4491 goto error_return; 4492 break; 4493 case bfd_reloc_dangerous: 4494 BFD_ASSERT (error_message != NULL); 4495 if (!((*link_info->callbacks->reloc_dangerous) 4496 (link_info, error_message, input_bfd, input_section, 4497 (*parent)->address))) 4498 goto error_return; 4499 break; 4500 case bfd_reloc_overflow: 4501 if (!((*link_info->callbacks->reloc_overflow) 4502 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr), 4503 (*parent)->howto->name, (*parent)->addend, 4504 input_bfd, input_section, (*parent)->address))) 4505 goto error_return; 4506 break; 4507 case bfd_reloc_outofrange: 4508 default: 4509 abort (); 4510 break; 4511 } 4512 4513 } 4514 } 4515 } 4516 if (reloc_vector != NULL) 4517 free (reloc_vector); 4518 return data; 4519 4520error_return: 4521 if (reloc_vector != NULL) 4522 free (reloc_vector); 4523 return NULL; 4524} 4525