bfd/reloc.c

   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, 2005
   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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  22
  23 /*
  24 SECTION
  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 /*
  55 DOCDD
  56 INODE
  57         typedef arelent, howto manager, Relocations, Relocations
  58
  59 SUBSECTION
  60         typedef arelent
  61
  62         This is the structure of a relocation entry:
  63
  64 CODE_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 /*
 118 DESCRIPTION
 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 /*
 245 SUBSUBSECTION
 246         <<enum complain_overflow>>
 247
 248         Indicates what sort of overflow checking should be done when
 249         performing a relocation.
 250
 251 CODE_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 /*
 274 SUBSUBSECTION
 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
 280 CODE_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 /*
 374 FUNCTION
 375         The HOWTO Macro
 376
 377 DESCRIPTION
 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
 383 DESCRIPTION
 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
 392 DESCRIPTION
 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
 400 DESCRIPTION
 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 /*
 421 FUNCTION
 422         bfd_get_reloc_size
 423
 424 SYNOPSIS
 425         unsigned int bfd_get_reloc_size (reloc_howto_type *);
 426
 427 DESCRIPTION
 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
 432 unsigned int
 433 bfd_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 /*
 449 TYPEDEF
 450         arelent_chain
 451
 452 DESCRIPTION
 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 /*
 469 FUNCTION
 470         bfd_check_overflow
 471
 472 SYNOPSIS
 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
 480 DESCRIPTION
 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
 489 bfd_reloc_status_type
 490 bfd_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 /*
 550 FUNCTION
 551         bfd_perform_relocation
 552
 553 SYNOPSIS
 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
 562 DESCRIPTION
 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
 580 bfd_reloc_status_type
 581 bfd_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               /* For m68k-coff, the addend was being subtracted twice during
 719                  relocation with -r.  Removing the line below this comment
 720                  fixes that problem; see PR 2953.
 721
 722 However, Ian wrote the following, regarding removing the line below,
 723 which explains why it is still enabled:  --djm
 724
 725 If you put a patch like that into BFD you need to check all the COFF
 726 linkers.  I am fairly certain that patch will break coff-i386 (e.g.,
 727 SCO); see coff_i386_reloc in coff-i386.c where I worked around the
 728 problem in a different way.  There may very well be a reason that the
 729 code works as it does.
 730
 731 Hmmm.  The first obvious point is that bfd_perform_relocation should
 732 not have any tests that depend upon the flavour.  It's seem like
 733 entirely the wrong place for such a thing.  The second obvious point
 734 is that the current code ignores the reloc addend when producing
 735 relocatable output for COFF.  That's peculiar.  In fact, I really
 736 have no idea what the point of the line you want to remove is.
 737
 738 A typical COFF reloc subtracts the old value of the symbol and adds in
 739 the new value to the location in the object file (if it's a pc
 740 relative reloc it adds the difference between the symbol value and the
 741 location).  When relocating we need to preserve that property.
 742
 743 BFD handles this by setting the addend to the negative of the old
 744 value of the symbol.  Unfortunately it handles common symbols in a
 745 non-standard way (it doesn't subtract the old value) but that's a
 746 different story (we can't change it without losing backward
 747 compatibility with old object files) (coff-i386 does subtract the old
 748 value, to be compatible with existing coff-i386 targets, like SCO).
 749
 750 So everything works fine when not producing relocatable output.  When
 751 we are producing relocatable output, logically we should do exactly
 752 what we do when not producing relocatable output.  Therefore, your
 753 patch is correct.  In fact, it should probably always just set
 754 reloc_entry->addend to 0 for all cases, since it is, in fact, going to
 755 add the value into the object file.  This won't hurt the COFF code,
 756 which doesn't use the addend; I'm not sure what it will do to other
 757 formats (the thing to check for would be whether any formats both use
 758 the addend and set partial_inplace).
 759
 760 When I wanted to make coff-i386 produce relocatable output, I ran
 761 into the problem that you are running into: I wanted to remove that
 762 line.  Rather than risk it, I made the coff-i386 relocs use a special
 763 function; it's coff_i386_reloc in coff-i386.c.  The function
 764 specifically adds the addend field into the object file, knowing that
 765 bfd_perform_relocation is not going to.  If you remove that line, then
 766 coff-i386.c will wind up adding the addend field in twice.  It's
 767 trivial to fix; it just needs to be done.
 768
 769 The problem with removing the line is just that it may break some
 770 working code.  With BFD it's hard to be sure of anything.  The right
 771 way to deal with this is simply to build and test at least all the
 772 supported COFF targets.  It should be straightforward if time and disk
 773 space consuming.  For each target:
 774     1) build the linker
 775     2) generate some executable, and link it using -r (I would
 776        probably use paranoia.o and link against newlib/libc.a, which
 777        for all the supported targets would be available in
 778        /usr/cygnus/progressive/H-host/target/lib/libc.a).
 779     3) make the change to reloc.c
 780     4) rebuild the linker
 781     5) repeat step 2
 782     6) if the resulting object files are the same, you have at least
 783        made it no worse
 784     7) if they are different you have to figure out which version is
 785        right
 786 */
 787               relocation -= reloc_entry->addend;
 788               reloc_entry->addend = 0;
 789             }
 790           else
 791             {
 792               reloc_entry->addend = relocation;
 793             }
 794         }
 795     }
 796   else
 797     {
 798       reloc_entry->addend = 0;
 799     }
 800
 801   /* FIXME: This overflow checking is incomplete, because the value
 802      might have overflowed before we get here.  For a correct check we
 803      need to compute the value in a size larger than bitsize, but we
 804      can't reasonably do that for a reloc the same size as a host
 805      machine word.
 806      FIXME: We should also do overflow checking on the result after
 807      adding in the value contained in the object file.  */
 808   if (howto->complain_on_overflow != complain_overflow_dont
 809       && flag == bfd_reloc_ok)
 810     flag = bfd_check_overflow (howto->complain_on_overflow,
 811                                howto->bitsize,
 812                                howto->rightshift,
 813                                bfd_arch_bits_per_address (abfd),
 814                                relocation);
 815
 816   /* Either we are relocating all the way, or we don't want to apply
 817      the relocation to the reloc entry (probably because there isn't
 818      any room in the output format to describe addends to relocs).  */
 819
 820   /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
 821      (OSF version 1.3, compiler version 3.11).  It miscompiles the
 822      following program:
 823
 824      struct str
 825      {
 826        unsigned int i0;
 827      } s = { 0 };
 828
 829      int
 830      main ()
 831      {
 832        unsigned long x;
 833
 834        x = 0x100000000;
 835        x <<= (unsigned long) s.i0;
 836        if (x == 0)
 837          printf ("failed\n");
 838        else
 839          printf ("succeeded (%lx)\n", x);
 840      }
 841      */
 842
 843   relocation >>= (bfd_vma) howto->rightshift;
 844
 845   /* Shift everything up to where it's going to be used.  */
 846   relocation <<= (bfd_vma) howto->bitpos;
 847
 848   /* Wait for the day when all have the mask in them.  */
 849
 850   /* What we do:
 851      i instruction to be left alone
 852      o offset within instruction
 853      r relocation offset to apply
 854      S src mask
 855      D dst mask
 856      N ~dst mask
 857      A part 1
 858      B part 2
 859      R result
 860
 861      Do this:
 862      ((  i i i i i o o o o o  from bfd_get<size>
 863      and           S S S S S) to get the size offset we want
 864      +   r r r r r r r r r r) to get the final value to place
 865      and           D D D D D  to chop to right size
 866      -----------------------
 867      =             A A A A A
 868      And this:
 869      (   i i i i i o o o o o  from bfd_get<size>
 870      and N N N N N          ) get instruction
 871      -----------------------
 872      =   B B B B B
 873
 874      And then:
 875      (   B B B B B
 876      or            A A A A A)
 877      -----------------------
 878      =   R R R R R R R R R R  put into bfd_put<size>
 879      */
 880
 881 #define DOIT(x) \
 882   x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) +  relocation) & howto->dst_mask))
 883
 884   switch (howto->size)
 885     {
 886     case 0:
 887       {
 888         char x = bfd_get_8 (abfd, (char *) data + octets);
 889         DOIT (x);
 890         bfd_put_8 (abfd, x, (unsigned char *) data + octets);
 891       }
 892       break;
 893
 894     case 1:
 895       {
 896         short x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
 897         DOIT (x);
 898         bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + octets);
 899       }
 900       break;
 901     case 2:
 902       {
 903         long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
 904         DOIT (x);
 905         bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
 906       }
 907       break;
 908     case -2:
 909       {
 910         long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
 911         relocation = -relocation;
 912         DOIT (x);
 913         bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
 914       }
 915       break;
 916
 917     case -1:
 918       {
 919         long x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
 920         relocation = -relocation;
 921         DOIT (x);
 922         bfd_put_16 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
 923       }
 924       break;
 925
 926     case 3:
 927       /* Do nothing */
 928       break;
 929
 930     case 4:
 931 #ifdef BFD64
 932       {
 933         bfd_vma x = bfd_get_64 (abfd, (bfd_byte *) data + octets);
 934         DOIT (x);
 935         bfd_put_64 (abfd, x, (bfd_byte *) data + octets);
 936       }
 937 #else
 938       abort ();
 939 #endif
 940       break;
 941     default:
 942       return bfd_reloc_other;
 943     }
 944
 945   return flag;
 946 }
 947
 948 /*
 949 FUNCTION
 950         bfd_install_relocation
 951
 952 SYNOPSIS
 953         bfd_reloc_status_type bfd_install_relocation
 954           (bfd *abfd,
 955            arelent *reloc_entry,
 956            void *data, bfd_vma data_start,
 957            asection *input_section,
 958            char **error_message);
 959
 960 DESCRIPTION
 961         This looks remarkably like <<bfd_perform_relocation>>, except it
 962         does not expect that the section contents have been filled in.
 963         I.e., it's suitable for use when creating, rather than applying
 964         a relocation.
 965
 966         For now, this function should be considered reserved for the
 967         assembler.
 968 */
 969
 970 bfd_reloc_status_type
 971 bfd_install_relocation (bfd *abfd,
 972                         arelent *reloc_entry,
 973                         void *data_start,
 974                         bfd_vma data_start_offset,
 975                         asection *input_section,
 976                         char **error_message)
 977 {
 978   bfd_vma relocation;
 979   bfd_reloc_status_type flag = bfd_reloc_ok;
 980   bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
 981   bfd_vma output_base = 0;
 982   reloc_howto_type *howto = reloc_entry->howto;
 983   asection *reloc_target_output_section;
 984   asymbol *symbol;
 985   bfd_byte *data;
 986
 987   symbol = *(reloc_entry->sym_ptr_ptr);
 988   if (bfd_is_abs_section (symbol->section))
 989     {
 990       reloc_entry->address += input_section->output_offset;
 991       return bfd_reloc_ok;
 992     }
 993
 994   /* If there is a function supplied to handle this relocation type,
 995      call it.  It'll return `bfd_reloc_continue' if further processing
 996      can be done.  */
 997   if (howto->special_function)
 998     {
 999       bfd_reloc_status_type cont;
1000
1001       /* XXX - The special_function calls haven't been fixed up to deal
1002          with creating new relocations and section contents.  */
1003       cont = howto->special_function (abfd, reloc_entry, symbol,
1004                                       /* XXX - Non-portable! */
1005                                       ((bfd_byte *) data_start
1006                                        - data_start_offset),
1007                                       input_section, abfd, error_message);
1008       if (cont != bfd_reloc_continue)
1009         return cont;
1010     }
1011
1012   /* Is the address of the relocation really within the section?  */
1013   if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
1014     return bfd_reloc_outofrange;
1015
1016   /* Work out which section the relocation is targeted at and the
1017      initial relocation command value.  */
1018
1019   /* Get symbol value.  (Common symbols are special.)  */
1020   if (bfd_is_com_section (symbol->section))
1021     relocation = 0;
1022   else
1023     relocation = symbol->value;
1024
1025   reloc_target_output_section = symbol->section->output_section;
1026
1027   /* Convert input-section-relative symbol value to absolute.  */
1028   if (! howto->partial_inplace)
1029     output_base = 0;
1030   else
1031     output_base = reloc_target_output_section->vma;
1032
1033   relocation += output_base + symbol->section->output_offset;
1034
1035   /* Add in supplied addend.  */
1036   relocation += reloc_entry->addend;
1037
1038   /* Here the variable relocation holds the final address of the
1039      symbol we are relocating against, plus any addend.  */
1040
1041   if (howto->pc_relative)
1042     {
1043       /* This is a PC relative relocation.  We want to set RELOCATION
1044          to the distance between the address of the symbol and the
1045          location.  RELOCATION is already the address of the symbol.
1046
1047          We start by subtracting the address of the section containing
1048          the location.
1049
1050          If pcrel_offset is set, we must further subtract the position
1051          of the location within the section.  Some targets arrange for
1052          the addend to be the negative of the position of the location
1053          within the section; for example, i386-aout does this.  For
1054          i386-aout, pcrel_offset is FALSE.  Some other targets do not
1055          include the position of the location; for example, m88kbcs,
1056          or ELF.  For those targets, pcrel_offset is TRUE.
1057
1058          If we are producing relocatable output, then we must ensure
1059          that this reloc will be correctly computed when the final
1060          relocation is done.  If pcrel_offset is FALSE we want to wind
1061          up with the negative of the location within the section,
1062          which means we must adjust the existing addend by the change
1063          in the location within the section.  If pcrel_offset is TRUE
1064          we do not want to adjust the existing addend at all.
1065
1066          FIXME: This seems logical to me, but for the case of
1067          producing relocatable output it is not what the code
1068          actually does.  I don't want to change it, because it seems
1069          far too likely that something will break.  */
1070
1071       relocation -=
1072         input_section->output_section->vma + input_section->output_offset;
1073
1074       if (howto->pcrel_offset && howto->partial_inplace)
1075         relocation -= reloc_entry->address;
1076     }
1077
1078   if (! howto->partial_inplace)
1079     {
1080       /* This is a partial relocation, and we want to apply the relocation
1081          to the reloc entry rather than the raw data. Modify the reloc
1082          inplace to reflect what we now know.  */
1083       reloc_entry->addend = relocation;
1084       reloc_entry->address += input_section->output_offset;
1085       return flag;
1086     }
1087   else
1088     {
1089       /* This is a partial relocation, but inplace, so modify the
1090          reloc record a bit.
1091
1092          If we've relocated with a symbol with a section, change
1093          into a ref to the section belonging to the symbol.  */
1094       reloc_entry->address += input_section->output_offset;
1095
1096       /* WTF?? */
1097       if (abfd->xvec->flavour == bfd_target_coff_flavour
1098           && strcmp (abfd->xvec->name, "coff-Intel-little") != 0
1099           && strcmp (abfd->xvec->name, "coff-Intel-big") != 0)
1100         {
1101
1102           /* For m68k-coff, the addend was being subtracted twice during
1103              relocation with -r.  Removing the line below this comment
1104              fixes that problem; see PR 2953.
1105
1106 However, Ian wrote the following, regarding removing the line below,
1107 which explains why it is still enabled:  --djm
1108
1109 If you put a patch like that into BFD you need to check all the COFF
1110 linkers.  I am fairly certain that patch will break coff-i386 (e.g.,
1111 SCO); see coff_i386_reloc in coff-i386.c where I worked around the
1112 problem in a different way.  There may very well be a reason that the
1113 code works as it does.
1114
1115 Hmmm.  The first obvious point is that bfd_install_relocation should
1116 not have any tests that depend upon the flavour.  It's seem like
1117 entirely the wrong place for such a thing.  The second obvious point
1118 is that the current code ignores the reloc addend when producing
1119 relocatable output for COFF.  That's peculiar.  In fact, I really
1120 have no idea what the point of the line you want to remove is.
1121
1122 A typical COFF reloc subtracts the old value of the symbol and adds in
1123 the new value to the location in the object file (if it's a pc
1124 relative reloc it adds the difference between the symbol value and the
1125 location).  When relocating we need to preserve that property.
1126
1127 BFD handles this by setting the addend to the negative of the old
1128 value of the symbol.  Unfortunately it handles common symbols in a
1129 non-standard way (it doesn't subtract the old value) but that's a
1130 different story (we can't change it without losing backward
1131 compatibility with old object files) (coff-i386 does subtract the old
1132 value, to be compatible with existing coff-i386 targets, like SCO).
1133
1134 So everything works fine when not producing relocatable output.  When
1135 we are producing relocatable output, logically we should do exactly
1136 what we do when not producing relocatable output.  Therefore, your
1137 patch is correct.  In fact, it should probably always just set
1138 reloc_entry->addend to 0 for all cases, since it is, in fact, going to
1139 add the value into the object file.  This won't hurt the COFF code,
1140 which doesn't use the addend; I'm not sure what it will do to other
1141 formats (the thing to check for would be whether any formats both use
1142 the addend and set partial_inplace).
1143
1144 When I wanted to make coff-i386 produce relocatable output, I ran
1145 into the problem that you are running into: I wanted to remove that
1146 line.  Rather than risk it, I made the coff-i386 relocs use a special
1147 function; it's coff_i386_reloc in coff-i386.c.  The function
1148 specifically adds the addend field into the object file, knowing that
1149 bfd_install_relocation is not going to.  If you remove that line, then
1150 coff-i386.c will wind up adding the addend field in twice.  It's
1151 trivial to fix; it just needs to be done.
1152
1153 The problem with removing the line is just that it may break some
1154 working code.  With BFD it's hard to be sure of anything.  The right
1155 way to deal with this is simply to build and test at least all the
1156 supported COFF targets.  It should be straightforward if time and disk
1157 space consuming.  For each target:
1158     1) build the linker
1159     2) generate some executable, and link it using -r (I would
1160        probably use paranoia.o and link against newlib/libc.a, which
1161        for all the supported targets would be available in
1162        /usr/cygnus/progressive/H-host/target/lib/libc.a).
1163     3) make the change to reloc.c
1164     4) rebuild the linker
1165     5) repeat step 2
1166     6) if the resulting object files are the same, you have at least
1167        made it no worse
1168     7) if they are different you have to figure out which version is
1169        right.  */
1170           relocation -= reloc_entry->addend;
1171           /* FIXME: There should be no target specific code here...  */
1172           if (strcmp (abfd->xvec->name, "coff-z8k") != 0)
1173             reloc_entry->addend = 0;
1174         }
1175       else
1176         {
1177           reloc_entry->addend = relocation;
1178         }
1179     }
1180
1181   /* FIXME: This overflow checking is incomplete, because the value
1182      might have overflowed before we get here.  For a correct check we
1183      need to compute the value in a size larger than bitsize, but we
1184      can't reasonably do that for a reloc the same size as a host
1185      machine word.
1186      FIXME: We should also do overflow checking on the result after
1187      adding in the value contained in the object file.  */
1188   if (howto->complain_on_overflow != complain_overflow_dont)
1189     flag = bfd_check_overflow (howto->complain_on_overflow,
1190                                howto->bitsize,
1191                                howto->rightshift,
1192                                bfd_arch_bits_per_address (abfd),
1193                                relocation);
1194
1195   /* Either we are relocating all the way, or we don't want to apply
1196      the relocation to the reloc entry (probably because there isn't
1197      any room in the output format to describe addends to relocs).  */
1198
1199   /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
1200      (OSF version 1.3, compiler version 3.11).  It miscompiles the
1201      following program:
1202
1203      struct str
1204      {
1205        unsigned int i0;
1206      } s = { 0 };
1207
1208      int
1209      main ()
1210      {
1211        unsigned long x;
1212
1213        x = 0x100000000;
1214        x <<= (unsigned long) s.i0;
1215        if (x == 0)
1216          printf ("failed\n");
1217        else
1218          printf ("succeeded (%lx)\n", x);
1219      }
1220      */
1221
1222   relocation >>= (bfd_vma) howto->rightshift;
1223
1224   /* Shift everything up to where it's going to be used.  */
1225   relocation <<= (bfd_vma) howto->bitpos;
1226
1227   /* Wait for the day when all have the mask in them.  */
1228
1229   /* What we do:
1230      i instruction to be left alone
1231      o offset within instruction
1232      r relocation offset to apply
1233      S src mask
1234      D dst mask
1235      N ~dst mask
1236      A part 1
1237      B part 2
1238      R result
1239
1240      Do this:
1241      ((  i i i i i o o o o o  from bfd_get<size>
1242      and           S S S S S) to get the size offset we want
1243      +   r r r r r r r r r r) to get the final value to place
1244      and           D D D D D  to chop to right size
1245      -----------------------
1246      =             A A A A A
1247      And this:
1248      (   i i i i i o o o o o  from bfd_get<size>
1249      and N N N N N          ) get instruction
1250      -----------------------
1251      =   B B B B B
1252
1253      And then:
1254      (   B B B B B
1255      or            A A A A A)
1256      -----------------------
1257      =   R R R R R R R R R R  put into bfd_put<size>
1258      */
1259
1260 #define DOIT(x) \
1261   x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) +  relocation) & howto->dst_mask))
1262
1263   data = (bfd_byte *) data_start + (octets - data_start_offset);
1264
1265   switch (howto->size)
1266     {
1267     case 0:
1268       {
1269         char x = bfd_get_8 (abfd, data);
1270         DOIT (x);
1271         bfd_put_8 (abfd, x, data);
1272       }
1273       break;
1274
1275     case 1:
1276       {
1277         short x = bfd_get_16 (abfd, data);
1278         DOIT (x);
1279         bfd_put_16 (abfd, (bfd_vma) x, data);
1280       }
1281       break;
1282     case 2:
1283       {
1284         long x = bfd_get_32 (abfd, data);
1285         DOIT (x);
1286         bfd_put_32 (abfd, (bfd_vma) x, data);
1287       }
1288       break;
1289     case -2:
1290       {
1291         long x = bfd_get_32 (abfd, data);
1292         relocation = -relocation;
1293         DOIT (x);
1294         bfd_put_32 (abfd, (bfd_vma) x, data);
1295       }
1296       break;
1297
1298     case 3:
1299       /* Do nothing */
1300       break;
1301
1302     case 4:
1303       {
1304         bfd_vma x = bfd_get_64 (abfd, data);
1305         DOIT (x);
1306         bfd_put_64 (abfd, x, data);
1307       }
1308       break;
1309     default:
1310       return bfd_reloc_other;
1311     }
1312
1313   return flag;
1314 }
1315
1316 /* This relocation routine is used by some of the backend linkers.
1317    They do not construct asymbol or arelent structures, so there is no
1318    reason for them to use bfd_perform_relocation.  Also,
1319    bfd_perform_relocation is so hacked up it is easier to write a new
1320    function than to try to deal with it.
1321
1322    This routine does a final relocation.  Whether it is useful for a
1323    relocatable link depends upon how the object format defines
1324    relocations.
1325
1326    FIXME: This routine ignores any special_function in the HOWTO,
1327    since the existing special_function values have been written for
1328    bfd_perform_relocation.
1329
1330    HOWTO is the reloc howto information.
1331    INPUT_BFD is the BFD which the reloc applies to.
1332    INPUT_SECTION is the section which the reloc applies to.
1333    CONTENTS is the contents of the section.
1334    ADDRESS is the address of the reloc within INPUT_SECTION.
1335    VALUE is the value of the symbol the reloc refers to.
1336    ADDEND is the addend of the reloc.  */
1337
1338 bfd_reloc_status_type
1339 _bfd_final_link_relocate (reloc_howto_type *howto,
1340                           bfd *input_bfd,
1341                           asection *input_section,
1342                           bfd_byte *contents,
1343                           bfd_vma address,
1344                           bfd_vma value,
1345                           bfd_vma addend)
1346 {
1347   bfd_vma relocation;
1348
1349   /* Sanity check the address.  */
1350   if (address > bfd_get_section_limit (input_bfd, input_section))
1351     return bfd_reloc_outofrange;
1352
1353   /* This function assumes that we are dealing with a basic relocation
1354      against a symbol.  We want to compute the value of the symbol to
1355      relocate to.  This is just VALUE, the value of the symbol, plus
1356      ADDEND, any addend associated with the reloc.  */
1357   relocation = value + addend;
1358
1359   /* If the relocation is PC relative, we want to set RELOCATION to
1360      the distance between the symbol (currently in RELOCATION) and the
1361      location we are relocating.  Some targets (e.g., i386-aout)
1362      arrange for the contents of the section to be the negative of the
1363      offset of the location within the section; for such targets
1364      pcrel_offset is FALSE.  Other targets (e.g., m88kbcs or ELF)
1365      simply leave the contents of the section as zero; for such
1366      targets pcrel_offset is TRUE.  If pcrel_offset is FALSE we do not
1367      need to subtract out the offset of the location within the
1368      section (which is just ADDRESS).  */
1369   if (howto->pc_relative)
1370     {
1371       relocation -= (input_section->output_section->vma
1372                      + input_section->output_offset);
1373       if (howto->pcrel_offset)
1374         relocation -= address;
1375     }
1376
1377   return _bfd_relocate_contents (howto, input_bfd, relocation,
1378                                  contents + address);
1379 }
1380
1381 /* Relocate a given location using a given value and howto.  */
1382
1383 bfd_reloc_status_type
1384 _bfd_relocate_contents (reloc_howto_type *howto,
1385                         bfd *input_bfd,
1386                         bfd_vma relocation,
1387                         bfd_byte *location)
1388 {
1389   int size;
1390   bfd_vma x = 0;
1391   bfd_reloc_status_type flag;
1392   unsigned int rightshift = howto->rightshift;
1393   unsigned int bitpos = howto->bitpos;
1394
1395   /* If the size is negative, negate RELOCATION.  This isn't very
1396      general.  */
1397   if (howto->size < 0)
1398     relocation = -relocation;
1399
1400   /* Get the value we are going to relocate.  */
1401   size = bfd_get_reloc_size (howto);
1402   switch (size)
1403     {
1404     default:
1405     case 0:
1406       abort ();
1407     case 1:
1408       x = bfd_get_8 (input_bfd, location);
1409       break;
1410     case 2:
1411       x = bfd_get_16 (input_bfd, location);
1412       break;
1413     case 4:
1414       x = bfd_get_32 (input_bfd, location);
1415       break;
1416     case 8:
1417 #ifdef BFD64
1418       x = bfd_get_64 (input_bfd, location);
1419 #else
1420       abort ();
1421 #endif
1422       break;
1423     }
1424
1425   /* Check for overflow.  FIXME: We may drop bits during the addition
1426      which we don't check for.  We must either check at every single
1427      operation, which would be tedious, or we must do the computations
1428      in a type larger than bfd_vma, which would be inefficient.  */
1429   flag = bfd_reloc_ok;
1430   if (howto->complain_on_overflow != complain_overflow_dont)
1431     {
1432       bfd_vma addrmask, fieldmask, signmask, ss;
1433       bfd_vma a, b, sum;
1434
1435       /* Get the values to be added together.  For signed and unsigned
1436          relocations, we assume that all values should be truncated to
1437          the size of an address.  For bitfields, all the bits matter.
1438          See also bfd_check_overflow.  */
1439       fieldmask = N_ONES (howto->bitsize);
1440       addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
1441       a = relocation;
1442       b = x & howto->src_mask;
1443
1444       switch (howto->complain_on_overflow)
1445         {
1446         case complain_overflow_signed:
1447           a = (a & addrmask) >> rightshift;
1448
1449           /* If any sign bits are set, all sign bits must be set.
1450              That is, A must be a valid negative address after
1451              shifting.  */
1452           signmask = ~ (fieldmask >> 1);
1453           ss = a & signmask;
1454           if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
1455             flag = bfd_reloc_overflow;
1456
1457           /* We only need this next bit of code if the sign bit of B
1458              is below the sign bit of A.  This would only happen if
1459              SRC_MASK had fewer bits than BITSIZE.  Note that if
1460              SRC_MASK has more bits than BITSIZE, we can get into
1461              trouble; we would need to verify that B is in range, as
1462              we do for A above.  */
1463           signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
1464
1465           /* Set all the bits above the sign bit.  */
1466           b = (b ^ signmask) - signmask;
1467
1468           b = (b & addrmask) >> bitpos;
1469
1470           /* Now we can do the addition.  */
1471           sum = a + b;
1472
1473           /* See if the result has the correct sign.  Bits above the
1474              sign bit are junk now; ignore them.  If the sum is
1475              positive, make sure we did not have all negative inputs;
1476              if the sum is negative, make sure we did not have all
1477              positive inputs.  The test below looks only at the sign
1478              bits, and it really just
1479                  SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
1480              */
1481           signmask = (fieldmask >> 1) + 1;
1482           if (((~ (a ^ b)) & (a ^ sum)) & signmask)
1483             flag = bfd_reloc_overflow;
1484
1485           break;
1486
1487         case complain_overflow_unsigned:
1488           /* Checking for an unsigned overflow is relatively easy:
1489              trim the addresses and add, and trim the result as well.
1490              Overflow is normally indicated when the result does not
1491              fit in the field.  However, we also need to consider the
1492              case when, e.g., fieldmask is 0x7fffffff or smaller, an
1493              input is 0x80000000, and bfd_vma is only 32 bits; then we
1494              will get sum == 0, but there is an overflow, since the
1495              inputs did not fit in the field.  Instead of doing a
1496              separate test, we can check for this by or-ing in the
1497              operands when testing for the sum overflowing its final
1498              field.  */
1499           a = (a & addrmask) >> rightshift;
1500           b = (b & addrmask) >> bitpos;
1501           sum = (a + b) & addrmask;
1502           if ((a | b | sum) & ~ fieldmask)
1503             flag = bfd_reloc_overflow;
1504
1505           break;
1506
1507         case complain_overflow_bitfield:
1508           /* Much like the signed check, but for a field one bit
1509              wider, and no trimming inputs with addrmask.  We allow a
1510              bitfield to represent numbers in the range -2**n to
1511              2**n-1, where n is the number of bits in the field.
1512              Note that when bfd_vma is 32 bits, a 32-bit reloc can't
1513              overflow, which is exactly what we want.  */
1514           a >>= rightshift;
1515
1516           signmask = ~ fieldmask;
1517           ss = a & signmask;
1518           if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & signmask))
1519             flag = bfd_reloc_overflow;
1520
1521           signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
1522           b = (b ^ signmask) - signmask;
1523
1524           b >>= bitpos;
1525
1526           sum = a + b;
1527
1528           /* We mask with addrmask here to explicitly allow an address
1529              wrap-around.  The Linux kernel relies on it, and it is
1530              the only way to write assembler code which can run when
1531              loaded at a location 0x80000000 away from the location at
1532              which it is linked.  */
1533           signmask = fieldmask + 1;
1534           if (((~ (a ^ b)) & (a ^ sum)) & signmask & addrmask)
1535             flag = bfd_reloc_overflow;
1536
1537           break;
1538
1539         default:
1540           abort ();
1541         }
1542     }
1543
1544   /* Put RELOCATION in the right bits.  */
1545   relocation >>= (bfd_vma) rightshift;
1546   relocation <<= (bfd_vma) bitpos;
1547
1548   /* Add RELOCATION to the right bits of X.  */
1549   x = ((x & ~howto->dst_mask)
1550        | (((x & howto->src_mask) + relocation) & howto->dst_mask));
1551
1552   /* Put the relocated value back in the object file.  */
1553   switch (size)
1554     {
1555     default:
1556     case 0:
1557       abort ();
1558     case 1:
1559       bfd_put_8 (input_bfd, x, location);
1560       break;
1561     case 2:
1562       bfd_put_16 (input_bfd, x, location);
1563       break;
1564     case 4:
1565       bfd_put_32 (input_bfd, x, location);
1566       break;
1567     case 8:
1568 #ifdef BFD64
1569       bfd_put_64 (input_bfd, x, location);
1570 #else
1571       abort ();
1572 #endif
1573       break;
1574     }
1575
1576   return flag;
1577 }
1578
1579 /*
1580 DOCDD
1581 INODE
1582         howto manager,  , typedef arelent, Relocations
1583
1584 SECTION
1585         The howto manager
1586
1587         When an application wants to create a relocation, but doesn't
1588         know what the target machine might call it, it can find out by
1589         using this bit of code.
1590
1591 */
1592
1593 /*
1594 TYPEDEF
1595         bfd_reloc_code_type
1596
1597 DESCRIPTION
1598         The insides of a reloc code.  The idea is that, eventually, there
1599         will be one enumerator for every type of relocation we ever do.
1600         Pass one of these values to <<bfd_reloc_type_lookup>>, and it'll
1601         return a howto pointer.
1602
1603         This does mean that the application must determine the correct
1604         enumerator value; you can't get a howto pointer from a random set
1605         of attributes.
1606
1607 SENUM
1608    bfd_reloc_code_real
1609
1610 ENUM
1611   BFD_RELOC_64
1612 ENUMX
1613   BFD_RELOC_32
1614 ENUMX
1615   BFD_RELOC_26
1616 ENUMX
1617   BFD_RELOC_24
1618 ENUMX
1619   BFD_RELOC_16
1620 ENUMX
1621   BFD_RELOC_14
1622 ENUMX
1623   BFD_RELOC_8
1624 ENUMDOC
1625   Basic absolute relocations of N bits.
1626
1627 ENUM
1628   BFD_RELOC_64_PCREL
1629 ENUMX
1630   BFD_RELOC_32_PCREL
1631 ENUMX
1632   BFD_RELOC_24_PCREL
1633 ENUMX
1634   BFD_RELOC_16_PCREL
1635 ENUMX
1636   BFD_RELOC_12_PCREL
1637 ENUMX
1638   BFD_RELOC_8_PCREL
1639 ENUMDOC
1640   PC-relative relocations.  Sometimes these are relative to the address
1641 of the relocation itself; sometimes they are relative to the start of
1642 the section containing the relocation.  It depends on the specific target.
1643
1644 The 24-bit relocation is used in some Intel 960 configurations.
1645
1646 ENUM
1647   BFD_RELOC_32_SECREL
1648 ENUMDOC
1649   Section relative relocations.  Some targets need this for DWARF2.
1650
1651 ENUM
1652   BFD_RELOC_32_GOT_PCREL
1653 ENUMX
1654   BFD_RELOC_16_GOT_PCREL
1655 ENUMX
1656   BFD_RELOC_8_GOT_PCREL
1657 ENUMX
1658   BFD_RELOC_32_GOTOFF
1659 ENUMX
1660   BFD_RELOC_16_GOTOFF
1661 ENUMX
1662   BFD_RELOC_LO16_GOTOFF
1663 ENUMX
1664   BFD_RELOC_HI16_GOTOFF
1665 ENUMX
1666   BFD_RELOC_HI16_S_GOTOFF
1667 ENUMX
1668   BFD_RELOC_8_GOTOFF
1669 ENUMX
1670   BFD_RELOC_64_PLT_PCREL
1671 ENUMX
1672   BFD_RELOC_32_PLT_PCREL
1673 ENUMX
1674   BFD_RELOC_24_PLT_PCREL
1675 ENUMX
1676   BFD_RELOC_16_PLT_PCREL
1677 ENUMX
1678   BFD_RELOC_8_PLT_PCREL
1679 ENUMX
1680   BFD_RELOC_64_PLTOFF
1681 ENUMX
1682   BFD_RELOC_32_PLTOFF
1683 ENUMX
1684   BFD_RELOC_16_PLTOFF
1685 ENUMX
1686   BFD_RELOC_LO16_PLTOFF
1687 ENUMX
1688   BFD_RELOC_HI16_PLTOFF
1689 ENUMX
1690   BFD_RELOC_HI16_S_PLTOFF
1691 ENUMX
1692   BFD_RELOC_8_PLTOFF
1693 ENUMDOC
1694   For ELF.
1695
1696 ENUM
1697   BFD_RELOC_68K_GLOB_DAT
1698 ENUMX
1699   BFD_RELOC_68K_JMP_SLOT
1700 ENUMX
1701   BFD_RELOC_68K_RELATIVE
1702 ENUMDOC
1703   Relocations used by 68K ELF.
1704
1705 ENUM
1706   BFD_RELOC_32_BASEREL
1707 ENUMX
1708   BFD_RELOC_16_BASEREL
1709 ENUMX
1710   BFD_RELOC_LO16_BASEREL
1711 ENUMX
1712   BFD_RELOC_HI16_BASEREL
1713 ENUMX
1714   BFD_RELOC_HI16_S_BASEREL
1715 ENUMX
1716   BFD_RELOC_8_BASEREL
1717 ENUMX
1718   BFD_RELOC_RVA
1719 ENUMDOC
1720   Linkage-table relative.
1721
1722 ENUM
1723   BFD_RELOC_8_FFnn
1724 ENUMDOC
1725   Absolute 8-bit relocation, but used to form an address like 0xFFnn.
1726
1727 ENUM
1728   BFD_RELOC_32_PCREL_S2
1729 ENUMX
1730   BFD_RELOC_16_PCREL_S2
1731 ENUMX
1732   BFD_RELOC_23_PCREL_S2
1733 ENUMDOC
1734   These PC-relative relocations are stored as word displacements --
1735 i.e., byte displacements shifted right two bits.  The 30-bit word
1736 displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1737 SPARC.  (SPARC tools generally refer to this as <<WDISP30>>.)  The
1738 signed 16-bit displacement is used on the MIPS, and the 23-bit
1739 displacement is used on the Alpha.
1740
1741 ENUM
1742   BFD_RELOC_HI22
1743 ENUMX
1744   BFD_RELOC_LO10
1745 ENUMDOC
1746   High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1747 the target word.  These are used on the SPARC.
1748
1749 ENUM
1750   BFD_RELOC_GPREL16
1751 ENUMX
1752   BFD_RELOC_GPREL32
1753 ENUMDOC
1754   For systems that allocate a Global Pointer register, these are
1755 displacements off that register.  These relocation types are
1756 handled specially, because the value the register will have is
1757 decided relatively late.
1758
1759 ENUM
1760   BFD_RELOC_I960_CALLJ
1761 ENUMDOC
1762   Reloc types used for i960/b.out.
1763
1764 ENUM
1765   BFD_RELOC_NONE
1766 ENUMX
1767   BFD_RELOC_SPARC_WDISP22
1768 ENUMX
1769   BFD_RELOC_SPARC22
1770 ENUMX
1771   BFD_RELOC_SPARC13
1772 ENUMX
1773   BFD_RELOC_SPARC_GOT10
1774 ENUMX
1775   BFD_RELOC_SPARC_GOT13
1776 ENUMX
1777   BFD_RELOC_SPARC_GOT22
1778 ENUMX
1779   BFD_RELOC_SPARC_PC10
1780 ENUMX
1781   BFD_RELOC_SPARC_PC22
1782 ENUMX
1783   BFD_RELOC_SPARC_WPLT30
1784 ENUMX
1785   BFD_RELOC_SPARC_COPY
1786 ENUMX
1787   BFD_RELOC_SPARC_GLOB_DAT
1788 ENUMX
1789   BFD_RELOC_SPARC_JMP_SLOT
1790 ENUMX
1791   BFD_RELOC_SPARC_RELATIVE
1792 ENUMX
1793   BFD_RELOC_SPARC_UA16
1794 ENUMX
1795   BFD_RELOC_SPARC_UA32
1796 ENUMX
1797   BFD_RELOC_SPARC_UA64
1798 ENUMDOC
1799   SPARC ELF relocations.  There is probably some overlap with other
1800   relocation types already defined.
1801
1802 ENUM
1803   BFD_RELOC_SPARC_BASE13
1804 ENUMX
1805   BFD_RELOC_SPARC_BASE22
1806 ENUMDOC
1807   I think these are specific to SPARC a.out (e.g., Sun 4).
1808
1809 ENUMEQ
1810   BFD_RELOC_SPARC_64
1811   BFD_RELOC_64
1812 ENUMX
1813   BFD_RELOC_SPARC_10
1814 ENUMX
1815   BFD_RELOC_SPARC_11
1816 ENUMX
1817   BFD_RELOC_SPARC_OLO10
1818 ENUMX
1819   BFD_RELOC_SPARC_HH22
1820 ENUMX
1821   BFD_RELOC_SPARC_HM10
1822 ENUMX
1823   BFD_RELOC_SPARC_LM22
1824 ENUMX
1825   BFD_RELOC_SPARC_PC_HH22
1826 ENUMX
1827   BFD_RELOC_SPARC_PC_HM10
1828 ENUMX
1829   BFD_RELOC_SPARC_PC_LM22
1830 ENUMX
1831   BFD_RELOC_SPARC_WDISP16
1832 ENUMX
1833   BFD_RELOC_SPARC_WDISP19
1834 ENUMX
1835   BFD_RELOC_SPARC_7
1836 ENUMX
1837   BFD_RELOC_SPARC_6
1838 ENUMX
1839   BFD_RELOC_SPARC_5
1840 ENUMEQX
1841   BFD_RELOC_SPARC_DISP64
1842   BFD_RELOC_64_PCREL
1843 ENUMX
1844   BFD_RELOC_SPARC_PLT32
1845 ENUMX
1846   BFD_RELOC_SPARC_PLT64
1847 ENUMX
1848   BFD_RELOC_SPARC_HIX22
1849 ENUMX
1850   BFD_RELOC_SPARC_LOX10
1851 ENUMX
1852   BFD_RELOC_SPARC_H44
1853 ENUMX
1854   BFD_RELOC_SPARC_M44
1855 ENUMX
1856   BFD_RELOC_SPARC_L44
1857 ENUMX
1858   BFD_RELOC_SPARC_REGISTER
1859 ENUMDOC
1860   SPARC64 relocations
1861
1862 ENUM
1863   BFD_RELOC_SPARC_REV32
1864 ENUMDOC
1865   SPARC little endian relocation
1866 ENUM
1867   BFD_RELOC_SPARC_TLS_GD_HI22
1868 ENUMX
1869   BFD_RELOC_SPARC_TLS_GD_LO10
1870 ENUMX
1871   BFD_RELOC_SPARC_TLS_GD_ADD
1872 ENUMX
1873   BFD_RELOC_SPARC_TLS_GD_CALL
1874 ENUMX
1875   BFD_RELOC_SPARC_TLS_LDM_HI22
1876 ENUMX
1877   BFD_RELOC_SPARC_TLS_LDM_LO10
1878 ENUMX
1879   BFD_RELOC_SPARC_TLS_LDM_ADD
1880 ENUMX
1881   BFD_RELOC_SPARC_TLS_LDM_CALL
1882 ENUMX
1883   BFD_RELOC_SPARC_TLS_LDO_HIX22
1884 ENUMX
1885   BFD_RELOC_SPARC_TLS_LDO_LOX10
1886 ENUMX
1887   BFD_RELOC_SPARC_TLS_LDO_ADD
1888 ENUMX
1889   BFD_RELOC_SPARC_TLS_IE_HI22
1890 ENUMX
1891   BFD_RELOC_SPARC_TLS_IE_LO10
1892 ENUMX
1893   BFD_RELOC_SPARC_TLS_IE_LD
1894 ENUMX
1895   BFD_RELOC_SPARC_TLS_IE_LDX
1896 ENUMX
1897   BFD_RELOC_SPARC_TLS_IE_ADD
1898 ENUMX
1899   BFD_RELOC_SPARC_TLS_LE_HIX22
1900 ENUMX
1901   BFD_RELOC_SPARC_TLS_LE_LOX10
1902 ENUMX
1903   BFD_RELOC_SPARC_TLS_DTPMOD32
1904 ENUMX
1905   BFD_RELOC_SPARC_TLS_DTPMOD64
1906 ENUMX
1907   BFD_RELOC_SPARC_TLS_DTPOFF32
1908 ENUMX
1909   BFD_RELOC_SPARC_TLS_DTPOFF64
1910 ENUMX
1911   BFD_RELOC_SPARC_TLS_TPOFF32
1912 ENUMX
1913   BFD_RELOC_SPARC_TLS_TPOFF64
1914 ENUMDOC
1915   SPARC TLS relocations
1916
1917 ENUM
1918   BFD_RELOC_ALPHA_GPDISP_HI16
1919 ENUMDOC
1920   Alpha ECOFF and ELF relocations.  Some of these treat the symbol or
1921      "addend" in some special way.
1922   For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1923      writing; when reading, it will be the absolute section symbol.  The
1924      addend is the displacement in bytes of the "lda" instruction from
1925      the "ldah" instruction (which is at the address of this reloc).
1926 ENUM
1927   BFD_RELOC_ALPHA_GPDISP_LO16
1928 ENUMDOC
1929   For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1930      with GPDISP_HI16 relocs.  The addend is ignored when writing the
1931      relocations out, and is filled in with the file's GP value on
1932      reading, for convenience.
1933
1934 ENUM
1935   BFD_RELOC_ALPHA_GPDISP
1936 ENUMDOC
1937   The ELF GPDISP relocation is exactly the same as the GPDISP_HI16
1938      relocation except that there is no accompanying GPDISP_LO16
1939      relocation.
1940
1941 ENUM
1942   BFD_RELOC_ALPHA_LITERAL
1943 ENUMX
1944   BFD_RELOC_ALPHA_ELF_LITERAL
1945 ENUMX
1946   BFD_RELOC_ALPHA_LITUSE
1947 ENUMDOC
1948   The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1949      the assembler turns it into a LDQ instruction to load the address of
1950      the symbol, and then fills in a register in the real instruction.
1951
1952      The LITERAL reloc, at the LDQ instruction, refers to the .lita
1953      section symbol.  The addend is ignored when writing, but is filled
1954      in with the file's GP value on reading, for convenience, as with the
1955      GPDISP_LO16 reloc.
1956
1957      The ELF_LITERAL reloc is somewhere between 16_GOTOFF and GPDISP_LO16.
1958      It should refer to the symbol to be referenced, as with 16_GOTOFF,
1959      but it generates output not based on the position within the .got
1960      section, but relative to the GP value chosen for the file during the
1961      final link stage.
1962
1963      The LITUSE reloc, on the instruction using the loaded address, gives
1964      information to the linker that it might be able to use to optimize
1965      away some literal section references.  The symbol is ignored (read
1966      as the absolute section symbol), and the "addend" indicates the type
1967      of instruction using the register:
1968               1 - "memory" fmt insn
1969               2 - byte-manipulation (byte offset reg)
1970               3 - jsr (target of branch)
1971
1972 ENUM
1973   BFD_RELOC_ALPHA_HINT
1974 ENUMDOC
1975   The HINT relocation indicates a value that should be filled into the
1976      "hint" field of a jmp/jsr/ret instruction, for possible branch-
1977      prediction logic which may be provided on some processors.
1978
1979 ENUM
1980   BFD_RELOC_ALPHA_LINKAGE
1981 ENUMDOC
1982   The LINKAGE relocation outputs a linkage pair in the object file,
1983      which is filled by the linker.
1984
1985 ENUM
1986   BFD_RELOC_ALPHA_CODEADDR
1987 ENUMDOC
1988   The CODEADDR relocation outputs a STO_CA in the object file,
1989      which is filled by the linker.
1990
1991 ENUM
1992   BFD_RELOC_ALPHA_GPREL_HI16
1993 ENUMX
1994   BFD_RELOC_ALPHA_GPREL_LO16
1995 ENUMDOC
1996   The GPREL_HI/LO relocations together form a 32-bit offset from the
1997      GP register.
1998
1999 ENUM
2000   BFD_RELOC_ALPHA_BRSGP
2001 ENUMDOC
2002   Like BFD_RELOC_23_PCREL_S2, except that the source and target must
2003   share a common GP, and the target address is adjusted for
2004   STO_ALPHA_STD_GPLOAD.
2005
2006 ENUM
2007   BFD_RELOC_ALPHA_TLSGD
2008 ENUMX
2009   BFD_RELOC_ALPHA_TLSLDM
2010 ENUMX
2011   BFD_RELOC_ALPHA_DTPMOD64
2012 ENUMX
2013   BFD_RELOC_ALPHA_GOTDTPREL16
2014 ENUMX
2015   BFD_RELOC_ALPHA_DTPREL64
2016 ENUMX
2017   BFD_RELOC_ALPHA_DTPREL_HI16
2018 ENUMX
2019   BFD_RELOC_ALPHA_DTPREL_LO16
2020 ENUMX
2021   BFD_RELOC_ALPHA_DTPREL16
2022 ENUMX
2023   BFD_RELOC_ALPHA_GOTTPREL16
2024 ENUMX
2025   BFD_RELOC_ALPHA_TPREL64
2026 ENUMX
2027   BFD_RELOC_ALPHA_TPREL_HI16
2028 ENUMX
2029   BFD_RELOC_ALPHA_TPREL_LO16
2030 ENUMX
2031   BFD_RELOC_ALPHA_TPREL16
2032 ENUMDOC
2033   Alpha thread-local storage relocations.
2034
2035 ENUM
2036   BFD_RELOC_MIPS_JMP
2037 ENUMDOC
2038   Bits 27..2 of the relocation address shifted right 2 bits;
2039      simple reloc otherwise.
2040
2041 ENUM
2042   BFD_RELOC_MIPS16_JMP
2043 ENUMDOC
2044   The MIPS16 jump instruction.
2045
2046 ENUM
2047   BFD_RELOC_MIPS16_GPREL
2048 ENUMDOC
2049   MIPS16 GP relative reloc.
2050
2051 ENUM
2052   BFD_RELOC_HI16
2053 ENUMDOC
2054   High 16 bits of 32-bit value; simple reloc.
2055 ENUM
2056   BFD_RELOC_HI16_S
2057 ENUMDOC
2058   High 16 bits of 32-bit value but the low 16 bits will be sign
2059      extended and added to form the final result.  If the low 16
2060      bits form a negative number, we need to add one to the high value
2061      to compensate for the borrow when the low bits are added.
2062 ENUM
2063   BFD_RELOC_LO16
2064 ENUMDOC
2065   Low 16 bits.
2066
2067 ENUM
2068   BFD_RELOC_HI16_PCREL
2069 ENUMDOC
2070   High 16 bits of 32-bit pc-relative value
2071 ENUM
2072   BFD_RELOC_HI16_S_PCREL
2073 ENUMDOC
2074   High 16 bits of 32-bit pc-relative value, adjusted
2075 ENUM
2076   BFD_RELOC_LO16_PCREL
2077 ENUMDOC
2078   Low 16 bits of pc-relative value
2079
2080 ENUM
2081   BFD_RELOC_MIPS16_HI16
2082 ENUMDOC
2083   MIPS16 high 16 bits of 32-bit value.
2084 ENUM
2085   BFD_RELOC_MIPS16_HI16_S
2086 ENUMDOC
2087   MIPS16 high 16 bits of 32-bit value but the low 16 bits will be sign
2088      extended and added to form the final result.  If the low 16
2089      bits form a negative number, we need to add one to the high value
2090      to compensate for the borrow when the low bits are added.
2091 ENUM
2092   BFD_RELOC_MIPS16_LO16
2093 ENUMDOC
2094   MIPS16 low 16 bits.
2095
2096 ENUM
2097   BFD_RELOC_MIPS_LITERAL
2098 ENUMDOC
2099   Relocation against a MIPS literal section.
2100
2101 ENUM
2102   BFD_RELOC_MIPS_GOT16
2103 ENUMX
2104   BFD_RELOC_MIPS_CALL16
2105 ENUMX
2106   BFD_RELOC_MIPS_GOT_HI16
2107 ENUMX
2108   BFD_RELOC_MIPS_GOT_LO16
2109 ENUMX
2110   BFD_RELOC_MIPS_CALL_HI16
2111 ENUMX
2112   BFD_RELOC_MIPS_CALL_LO16
2113 ENUMX
2114   BFD_RELOC_MIPS_SUB
2115 ENUMX
2116   BFD_RELOC_MIPS_GOT_PAGE
2117 ENUMX
2118   BFD_RELOC_MIPS_GOT_OFST
2119 ENUMX
2120   BFD_RELOC_MIPS_GOT_DISP
2121 ENUMX
2122   BFD_RELOC_MIPS_SHIFT5
2123 ENUMX
2124   BFD_RELOC_MIPS_SHIFT6
2125 ENUMX
2126   BFD_RELOC_MIPS_INSERT_A
2127 ENUMX
2128   BFD_RELOC_MIPS_INSERT_B
2129 ENUMX
2130   BFD_RELOC_MIPS_DELETE
2131 ENUMX
2132   BFD_RELOC_MIPS_HIGHEST
2133 ENUMX
2134   BFD_RELOC_MIPS_HIGHER
2135 ENUMX
2136   BFD_RELOC_MIPS_SCN_DISP
2137 ENUMX
2138   BFD_RELOC_MIPS_REL16
2139 ENUMX
2140   BFD_RELOC_MIPS_RELGOT
2141 ENUMX
2142   BFD_RELOC_MIPS_JALR
2143 ENUMX
2144   BFD_RELOC_MIPS_TLS_DTPMOD32
2145 ENUMX
2146   BFD_RELOC_MIPS_TLS_DTPREL32
2147 ENUMX
2148   BFD_RELOC_MIPS_TLS_DTPMOD64
2149 ENUMX
2150   BFD_RELOC_MIPS_TLS_DTPREL64
2151 ENUMX
2152   BFD_RELOC_MIPS_TLS_GD
2153 ENUMX
2154   BFD_RELOC_MIPS_TLS_LDM
2155 ENUMX
2156   BFD_RELOC_MIPS_TLS_DTPREL_HI16
2157 ENUMX
2158   BFD_RELOC_MIPS_TLS_DTPREL_LO16
2159 ENUMX
2160   BFD_RELOC_MIPS_TLS_GOTTPREL
2161 ENUMX
2162   BFD_RELOC_MIPS_TLS_TPREL32
2163 ENUMX
2164   BFD_RELOC_MIPS_TLS_TPREL64
2165 ENUMX
2166   BFD_RELOC_MIPS_TLS_TPREL_HI16
2167 ENUMX
2168   BFD_RELOC_MIPS_TLS_TPREL_LO16
2169 ENUMDOC
2170   MIPS ELF relocations.
2171 COMMENT
2172
2173 ENUM
2174   BFD_RELOC_FRV_LABEL16
2175 ENUMX
2176   BFD_RELOC_FRV_LABEL24
2177 ENUMX
2178   BFD_RELOC_FRV_LO16
2179 ENUMX
2180   BFD_RELOC_FRV_HI16
2181 ENUMX
2182   BFD_RELOC_FRV_GPREL12
2183 ENUMX
2184   BFD_RELOC_FRV_GPRELU12
2185 ENUMX
2186   BFD_RELOC_FRV_GPREL32
2187 ENUMX
2188   BFD_RELOC_FRV_GPRELHI
2189 ENUMX
2190   BFD_RELOC_FRV_GPRELLO
2191 ENUMX
2192   BFD_RELOC_FRV_GOT12
2193 ENUMX
2194   BFD_RELOC_FRV_GOTHI
2195 ENUMX
2196   BFD_RELOC_FRV_GOTLO
2197 ENUMX
2198   BFD_RELOC_FRV_FUNCDESC
2199 ENUMX
2200   BFD_RELOC_FRV_FUNCDESC_GOT12
2201 ENUMX
2202   BFD_RELOC_FRV_FUNCDESC_GOTHI
2203 ENUMX
2204   BFD_RELOC_FRV_FUNCDESC_GOTLO
2205 ENUMX
2206   BFD_RELOC_FRV_FUNCDESC_VALUE
2207 ENUMX
2208   BFD_RELOC_FRV_FUNCDESC_GOTOFF12
2209 ENUMX
2210   BFD_RELOC_FRV_FUNCDESC_GOTOFFHI
2211 ENUMX
2212   BFD_RELOC_FRV_FUNCDESC_GOTOFFLO
2213 ENUMX
2214   BFD_RELOC_FRV_GOTOFF12
2215 ENUMX
2216   BFD_RELOC_FRV_GOTOFFHI
2217 ENUMX
2218   BFD_RELOC_FRV_GOTOFFLO
2219 ENUMX
2220   BFD_RELOC_FRV_GETTLSOFF
2221 ENUMX
2222   BFD_RELOC_FRV_TLSDESC_VALUE
2223 ENUMX
2224   BFD_RELOC_FRV_GOTTLSDESC12
2225 ENUMX
2226   BFD_RELOC_FRV_GOTTLSDESCHI
2227 ENUMX
2228   BFD_RELOC_FRV_GOTTLSDESCLO
2229 ENUMX
2230   BFD_RELOC_FRV_TLSMOFF12
2231 ENUMX
2232   BFD_RELOC_FRV_TLSMOFFHI
2233 ENUMX
2234   BFD_RELOC_FRV_TLSMOFFLO
2235 ENUMX
2236   BFD_RELOC_FRV_GOTTLSOFF12
2237 ENUMX
2238   BFD_RELOC_FRV_GOTTLSOFFHI
2239 ENUMX
2240   BFD_RELOC_FRV_GOTTLSOFFLO
2241 ENUMX
2242   BFD_RELOC_FRV_TLSOFF
2243 ENUMX
2244   BFD_RELOC_FRV_TLSDESC_RELAX
2245 ENUMX
2246   BFD_RELOC_FRV_GETTLSOFF_RELAX
2247 ENUMX
2248   BFD_RELOC_FRV_TLSOFF_RELAX
2249 ENUMX
2250   BFD_RELOC_FRV_TLSMOFF
2251 ENUMDOC
2252   Fujitsu Frv Relocations.
2253 COMMENT
2254
2255 ENUM
2256   BFD_RELOC_MN10300_GOTOFF24
2257 ENUMDOC
2258   This is a 24bit GOT-relative reloc for the mn10300.
2259 ENUM
2260   BFD_RELOC_MN10300_GOT32
2261 ENUMDOC
2262   This is a 32bit GOT-relative reloc for the mn10300, offset by two bytes
2263   in the instruction.
2264 ENUM
2265   BFD_RELOC_MN10300_GOT24
2266 ENUMDOC
2267   This is a 24bit GOT-relative reloc for the mn10300, offset by two bytes
2268   in the instruction.
2269 ENUM
2270   BFD_RELOC_MN10300_GOT16
2271 ENUMDOC
2272   This is a 16bit GOT-relative reloc for the mn10300, offset by two bytes
2273   in the instruction.
2274 ENUM
2275   BFD_RELOC_MN10300_COPY
2276 ENUMDOC
2277   Copy symbol at runtime.
2278 ENUM
2279   BFD_RELOC_MN10300_GLOB_DAT
2280 ENUMDOC
2281   Create GOT entry.
2282 ENUM
2283   BFD_RELOC_MN10300_JMP_SLOT
2284 ENUMDOC
2285   Create PLT entry.
2286 ENUM
2287   BFD_RELOC_MN10300_RELATIVE
2288 ENUMDOC
2289   Adjust by program base.
2290 COMMENT
2291
2292 ENUM
2293   BFD_RELOC_386_GOT32
2294 ENUMX
2295   BFD_RELOC_386_PLT32
2296 ENUMX
2297   BFD_RELOC_386_COPY
2298 ENUMX
2299   BFD_RELOC_386_GLOB_DAT
2300 ENUMX
2301   BFD_RELOC_386_JUMP_SLOT
2302 ENUMX
2303   BFD_RELOC_386_RELATIVE
2304 ENUMX
2305   BFD_RELOC_386_GOTOFF
2306 ENUMX
2307   BFD_RELOC_386_GOTPC
2308 ENUMX
2309   BFD_RELOC_386_TLS_TPOFF
2310 ENUMX
2311   BFD_RELOC_386_TLS_IE
2312 ENUMX
2313   BFD_RELOC_386_TLS_GOTIE
2314 ENUMX
2315   BFD_RELOC_386_TLS_LE
2316 ENUMX
2317   BFD_RELOC_386_TLS_GD
2318 ENUMX
2319   BFD_RELOC_386_TLS_LDM
2320 ENUMX
2321   BFD_RELOC_386_TLS_LDO_32
2322 ENUMX
2323   BFD_RELOC_386_TLS_IE_32
2324 ENUMX
2325   BFD_RELOC_386_TLS_LE_32
2326 ENUMX
2327   BFD_RELOC_386_TLS_DTPMOD32
2328 ENUMX
2329   BFD_RELOC_386_TLS_DTPOFF32
2330 ENUMX
2331   BFD_RELOC_386_TLS_TPOFF32
2332 ENUMDOC
2333   i386/elf relocations
2334
2335 ENUM
2336   BFD_RELOC_X86_64_GOT32
2337 ENUMX
2338   BFD_RELOC_X86_64_PLT32
2339 ENUMX
2340   BFD_RELOC_X86_64_COPY
2341 ENUMX
2342   BFD_RELOC_X86_64_GLOB_DAT
2343 ENUMX
2344   BFD_RELOC_X86_64_JUMP_SLOT
2345 ENUMX
2346   BFD_RELOC_X86_64_RELATIVE
2347 ENUMX
2348   BFD_RELOC_X86_64_GOTPCREL
2349 ENUMX
2350   BFD_RELOC_X86_64_32S
2351 ENUMX
2352   BFD_RELOC_X86_64_DTPMOD64
2353 ENUMX
2354   BFD_RELOC_X86_64_DTPOFF64
2355 ENUMX
2356   BFD_RELOC_X86_64_TPOFF64
2357 ENUMX
2358   BFD_RELOC_X86_64_TLSGD
2359 ENUMX
2360   BFD_RELOC_X86_64_TLSLD
2361 ENUMX
2362   BFD_RELOC_X86_64_DTPOFF32
2363 ENUMX
2364   BFD_RELOC_X86_64_GOTTPOFF
2365 ENUMX
2366   BFD_RELOC_X86_64_TPOFF32
2367 ENUMX
2368   BFD_RELOC_X86_64_GOTOFF64
2369 ENUMX
2370   BFD_RELOC_X86_64_GOTPC32
2371 ENUMDOC
2372   x86-64/elf relocations
2373
2374 ENUM
2375   BFD_RELOC_NS32K_IMM_8
2376 ENUMX
2377   BFD_RELOC_NS32K_IMM_16
2378 ENUMX
2379   BFD_RELOC_NS32K_IMM_32
2380 ENUMX
2381   BFD_RELOC_NS32K_IMM_8_PCREL
2382 ENUMX
2383   BFD_RELOC_NS32K_IMM_16_PCREL
2384 ENUMX
2385   BFD_RELOC_NS32K_IMM_32_PCREL
2386 ENUMX
2387   BFD_RELOC_NS32K_DISP_8
2388 ENUMX
2389   BFD_RELOC_NS32K_DISP_16
2390 ENUMX
2391   BFD_RELOC_NS32K_DISP_32
2392 ENUMX
2393   BFD_RELOC_NS32K_DISP_8_PCREL
2394 ENUMX
2395   BFD_RELOC_NS32K_DISP_16_PCREL
2396 ENUMX
2397   BFD_RELOC_NS32K_DISP_32_PCREL
2398 ENUMDOC
2399   ns32k relocations
2400
2401 ENUM
2402   BFD_RELOC_PDP11_DISP_8_PCREL
2403 ENUMX
2404   BFD_RELOC_PDP11_DISP_6_PCREL
2405 ENUMDOC
2406   PDP11 relocations
2407
2408 ENUM
2409   BFD_RELOC_PJ_CODE_HI16
2410 ENUMX
2411   BFD_RELOC_PJ_CODE_LO16
2412 ENUMX
2413   BFD_RELOC_PJ_CODE_DIR16
2414 ENUMX
2415   BFD_RELOC_PJ_CODE_DIR32
2416 ENUMX
2417   BFD_RELOC_PJ_CODE_REL16
2418 ENUMX
2419   BFD_RELOC_PJ_CODE_REL32
2420 ENUMDOC
2421   Picojava relocs.  Not all of these appear in object files.
2422
2423 ENUM
2424   BFD_RELOC_PPC_B26
2425 ENUMX
2426   BFD_RELOC_PPC_BA26
2427 ENUMX
2428   BFD_RELOC_PPC_TOC16
2429 ENUMX
2430   BFD_RELOC_PPC_B16
2431 ENUMX
2432   BFD_RELOC_PPC_B16_BRTAKEN
2433 ENUMX
2434   BFD_RELOC_PPC_B16_BRNTAKEN
2435 ENUMX
2436   BFD_RELOC_PPC_BA16
2437 ENUMX
2438   BFD_RELOC_PPC_BA16_BRTAKEN
2439 ENUMX
2440   BFD_RELOC_PPC_BA16_BRNTAKEN
2441 ENUMX
2442   BFD_RELOC_PPC_COPY
2443 ENUMX
2444   BFD_RELOC_PPC_GLOB_DAT
2445 ENUMX
2446   BFD_RELOC_PPC_JMP_SLOT
2447 ENUMX
2448   BFD_RELOC_PPC_RELATIVE
2449 ENUMX
2450   BFD_RELOC_PPC_LOCAL24PC
2451 ENUMX
2452   BFD_RELOC_PPC_EMB_NADDR32
2453 ENUMX
2454   BFD_RELOC_PPC_EMB_NADDR16
2455 ENUMX
2456   BFD_RELOC_PPC_EMB_NADDR16_LO
2457 ENUMX
2458   BFD_RELOC_PPC_EMB_NADDR16_HI
2459 ENUMX
2460   BFD_RELOC_PPC_EMB_NADDR16_HA
2461 ENUMX
2462   BFD_RELOC_PPC_EMB_SDAI16
2463 ENUMX
2464   BFD_RELOC_PPC_EMB_SDA2I16
2465 ENUMX
2466   BFD_RELOC_PPC_EMB_SDA2REL
2467 ENUMX
2468   BFD_RELOC_PPC_EMB_SDA21
2469 ENUMX
2470   BFD_RELOC_PPC_EMB_MRKREF
2471 ENUMX
2472   BFD_RELOC_PPC_EMB_RELSEC16
2473 ENUMX
2474   BFD_RELOC_PPC_EMB_RELST_LO
2475 ENUMX
2476   BFD_RELOC_PPC_EMB_RELST_HI
2477 ENUMX
2478   BFD_RELOC_PPC_EMB_RELST_HA
2479 ENUMX
2480   BFD_RELOC_PPC_EMB_BIT_FLD
2481 ENUMX
2482   BFD_RELOC_PPC_EMB_RELSDA
2483 ENUMX
2484   BFD_RELOC_PPC64_HIGHER
2485 ENUMX
2486   BFD_RELOC_PPC64_HIGHER_S
2487 ENUMX
2488   BFD_RELOC_PPC64_HIGHEST
2489 ENUMX
2490   BFD_RELOC_PPC64_HIGHEST_S
2491 ENUMX
2492   BFD_RELOC_PPC64_TOC16_LO
2493 ENUMX
2494   BFD_RELOC_PPC64_TOC16_HI
2495 ENUMX
2496   BFD_RELOC_PPC64_TOC16_HA
2497 ENUMX
2498   BFD_RELOC_PPC64_TOC
2499 ENUMX
2500   BFD_RELOC_PPC64_PLTGOT16
2501 ENUMX
2502   BFD_RELOC_PPC64_PLTGOT16_LO
2503 ENUMX
2504   BFD_RELOC_PPC64_PLTGOT16_HI
2505 ENUMX
2506   BFD_RELOC_PPC64_PLTGOT16_HA
2507 ENUMX
2508   BFD_RELOC_PPC64_ADDR16_DS
2509 ENUMX
2510   BFD_RELOC_PPC64_ADDR16_LO_DS
2511 ENUMX
2512   BFD_RELOC_PPC64_GOT16_DS
2513 ENUMX
2514   BFD_RELOC_PPC64_GOT16_LO_DS
2515 ENUMX
2516   BFD_RELOC_PPC64_PLT16_LO_DS
2517 ENUMX
2518   BFD_RELOC_PPC64_SECTOFF_DS
2519 ENUMX
2520   BFD_RELOC_PPC64_SECTOFF_LO_DS
2521 ENUMX
2522   BFD_RELOC_PPC64_TOC16_DS
2523 ENUMX
2524   BFD_RELOC_PPC64_TOC16_LO_DS
2525 ENUMX
2526   BFD_RELOC_PPC64_PLTGOT16_DS
2527 ENUMX
2528   BFD_RELOC_PPC64_PLTGOT16_LO_DS
2529 ENUMDOC
2530   Power(rs6000) and PowerPC relocations.
2531
2532 ENUM
2533   BFD_RELOC_PPC_TLS
2534 ENUMX
2535   BFD_RELOC_PPC_DTPMOD
2536 ENUMX
2537   BFD_RELOC_PPC_TPREL16
2538 ENUMX
2539   BFD_RELOC_PPC_TPREL16_LO
2540 ENUMX
2541   BFD_RELOC_PPC_TPREL16_HI
2542 ENUMX
2543   BFD_RELOC_PPC_TPREL16_HA
2544 ENUMX
2545   BFD_RELOC_PPC_TPREL
2546 ENUMX
2547   BFD_RELOC_PPC_DTPREL16
2548 ENUMX
2549   BFD_RELOC_PPC_DTPREL16_LO
2550 ENUMX
2551   BFD_RELOC_PPC_DTPREL16_HI
2552 ENUMX
2553   BFD_RELOC_PPC_DTPREL16_HA
2554 ENUMX
2555   BFD_RELOC_PPC_DTPREL
2556 ENUMX
2557   BFD_RELOC_PPC_GOT_TLSGD16
2558 ENUMX
2559   BFD_RELOC_PPC_GOT_TLSGD16_LO
2560 ENUMX
2561   BFD_RELOC_PPC_GOT_TLSGD16_HI
2562 ENUMX
2563   BFD_RELOC_PPC_GOT_TLSGD16_HA
2564 ENUMX
2565   BFD_RELOC_PPC_GOT_TLSLD16
2566 ENUMX
2567   BFD_RELOC_PPC_GOT_TLSLD16_LO
2568 ENUMX
2569   BFD_RELOC_PPC_GOT_TLSLD16_HI
2570 ENUMX
2571   BFD_RELOC_PPC_GOT_TLSLD16_HA
2572 ENUMX
2573   BFD_RELOC_PPC_GOT_TPREL16
2574 ENUMX
2575   BFD_RELOC_PPC_GOT_TPREL16_LO
2576 ENUMX
2577   BFD_RELOC_PPC_GOT_TPREL16_HI
2578 ENUMX
2579   BFD_RELOC_PPC_GOT_TPREL16_HA
2580 ENUMX
2581   BFD_RELOC_PPC_GOT_DTPREL16
2582 ENUMX
2583   BFD_RELOC_PPC_GOT_DTPREL16_LO
2584 ENUMX
2585   BFD_RELOC_PPC_GOT_DTPREL16_HI
2586 ENUMX
2587   BFD_RELOC_PPC_GOT_DTPREL16_HA
2588 ENUMX
2589   BFD_RELOC_PPC64_TPREL16_DS
2590 ENUMX
2591   BFD_RELOC_PPC64_TPREL16_LO_DS
2592 ENUMX
2593   BFD_RELOC_PPC64_TPREL16_HIGHER
2594 ENUMX
2595   BFD_RELOC_PPC64_TPREL16_HIGHERA
2596 ENUMX
2597   BFD_RELOC_PPC64_TPREL16_HIGHEST
2598 ENUMX
2599   BFD_RELOC_PPC64_TPREL16_HIGHESTA
2600 ENUMX
2601   BFD_RELOC_PPC64_DTPREL16_DS
2602 ENUMX
2603   BFD_RELOC_PPC64_DTPREL16_LO_DS
2604 ENUMX
2605   BFD_RELOC_PPC64_DTPREL16_HIGHER
2606 ENUMX
2607   BFD_RELOC_PPC64_DTPREL16_HIGHERA
2608 ENUMX
2609   BFD_RELOC_PPC64_DTPREL16_HIGHEST
2610 ENUMX
2611   BFD_RELOC_PPC64_DTPREL16_HIGHESTA
2612 ENUMDOC
2613   PowerPC and PowerPC64 thread-local storage relocations.
2614
2615 ENUM
2616   BFD_RELOC_I370_D12
2617 ENUMDOC
2618   IBM 370/390 relocations
2619
2620 ENUM
2621   BFD_RELOC_CTOR
2622 ENUMDOC
2623   The type of reloc used to build a constructor table - at the moment
2624   probably a 32 bit wide absolute relocation, but the target can choose.
2625   It generally does map to one of the other relocation types.
2626
2627 ENUM
2628   BFD_RELOC_ARM_PCREL_BRANCH
2629 ENUMDOC
2630   ARM 26 bit pc-relative branch.  The lowest two bits must be zero and are
2631   not stored in the instruction.
2632 ENUM
2633   BFD_RELOC_ARM_PCREL_BLX
2634 ENUMDOC
2635   ARM 26 bit pc-relative branch.  The lowest bit must be zero and is
2636   not stored in the instruction.  The 2nd lowest bit comes from a 1 bit
2637   field in the instruction.
2638 ENUM
2639   BFD_RELOC_THUMB_PCREL_BLX
2640 ENUMDOC
2641   Thumb 22 bit pc-relative branch.  The lowest bit must be zero and is
2642   not stored in the instruction.  The 2nd lowest bit comes from a 1 bit
2643   field in the instruction.
2644
2645 ENUM
2646   BFD_RELOC_THUMB_PCREL_BRANCH7
2647 ENUMX
2648   BFD_RELOC_THUMB_PCREL_BRANCH9
2649 ENUMX
2650   BFD_RELOC_THUMB_PCREL_BRANCH12
2651 ENUMX
2652   BFD_RELOC_THUMB_PCREL_BRANCH20
2653 ENUMX
2654   BFD_RELOC_THUMB_PCREL_BRANCH23
2655 ENUMX
2656   BFD_RELOC_THUMB_PCREL_BRANCH25
2657 ENUMDOC
2658   Thumb 7-, 9-, 12-, 20-, 23-, and 25-bit pc-relative branches.
2659   The lowest bit must be zero and is not stored in the instruction.
2660   Note that the corresponding ELF R_ARM_THM_JUMPnn constant has an
2661   "nn" one smaller in all cases.  Note further that BRANCH23
2662   corresponds to R_ARM_THM_CALL.
2663
2664 ENUM
2665   BFD_RELOC_ARM_OFFSET_IMM
2666 ENUMDOC
2667   12-bit immediate offset, used in ARM-format ldr and str instructions.
2668
2669 ENUM
2670   BFD_RELOC_ARM_THUMB_OFFSET
2671 ENUMDOC
2672   5-bit immediate offset, used in Thumb-format ldr and str instructions.
2673
2674 ENUM
2675   BFD_RELOC_ARM_TARGET1
2676 ENUMDOC
2677   Pc-relative or absolute relocation depending on target.  Used for
2678   entries in .init_array sections.
2679 ENUM
2680   BFD_RELOC_ARM_ROSEGREL32
2681 ENUMDOC
2682   Read-only segment base relative address.
2683 ENUM
2684   BFD_RELOC_ARM_SBREL32
2685 ENUMDOC
2686   Data segment base relative address.
2687 ENUM
2688   BFD_RELOC_ARM_TARGET2
2689 ENUMDOC
2690   This reloc is used for references to RTTI data from exception handling
2691   tables.  The actual definition depends on the target.  It may be a
2692   pc-relative or some form of GOT-indirect relocation.
2693 ENUM
2694   BFD_RELOC_ARM_PREL31
2695 ENUMDOC
2696   31-bit PC relative address.
2697
2698 ENUM
2699   BFD_RELOC_ARM_JUMP_SLOT
2700 ENUMX
2701   BFD_RELOC_ARM_GLOB_DAT
2702 ENUMX
2703   BFD_RELOC_ARM_GOT32
2704 ENUMX
2705   BFD_RELOC_ARM_PLT32
2706 ENUMX
2707   BFD_RELOC_ARM_RELATIVE
2708 ENUMX
2709   BFD_RELOC_ARM_GOTOFF
2710 ENUMX
2711   BFD_RELOC_ARM_GOTPC
2712 ENUMDOC
2713   Relocations for setting up GOTs and PLTs for shared libraries.
2714
2715 ENUM
2716   BFD_RELOC_ARM_TLS_GD32
2717 ENUMX
2718   BFD_RELOC_ARM_TLS_LDO32
2719 ENUMX
2720   BFD_RELOC_ARM_TLS_LDM32
2721 ENUMX
2722   BFD_RELOC_ARM_TLS_DTPOFF32
2723 ENUMX
2724   BFD_RELOC_ARM_TLS_DTPMOD32
2725 ENUMX
2726   BFD_RELOC_ARM_TLS_TPOFF32
2727 ENUMX
2728   BFD_RELOC_ARM_TLS_IE32
2729 ENUMX
2730   BFD_RELOC_ARM_TLS_LE32
2731 ENUMDOC
2732   ARM thread-local storage relocations.
2733
2734 ENUM
2735   BFD_RELOC_ARM_IMMEDIATE
2736 ENUMX
2737   BFD_RELOC_ARM_ADRL_IMMEDIATE
2738 ENUMX
2739   BFD_RELOC_ARM_T32_IMMEDIATE
2740 ENUMX
2741   BFD_RELOC_ARM_T32_IMM12
2742 ENUMX
2743   BFD_RELOC_ARM_T32_ADD_PC12
2744 ENUMX
2745   BFD_RELOC_ARM_SHIFT_IMM
2746 ENUMX
2747   BFD_RELOC_ARM_SMI
2748 ENUMX
2749   BFD_RELOC_ARM_SWI
2750 ENUMX
2751   BFD_RELOC_ARM_MULTI
2752 ENUMX
2753   BFD_RELOC_ARM_CP_OFF_IMM
2754 ENUMX
2755   BFD_RELOC_ARM_CP_OFF_IMM_S2
2756 ENUMX
2757   BFD_RELOC_ARM_ADR_IMM
2758 ENUMX
2759   BFD_RELOC_ARM_LDR_IMM
2760 ENUMX
2761   BFD_RELOC_ARM_LITERAL
2762 ENUMX
2763   BFD_RELOC_ARM_IN_POOL
2764 ENUMX
2765   BFD_RELOC_ARM_OFFSET_IMM8
2766 ENUMX
2767   BFD_RELOC_ARM_T32_OFFSET_U8
2768 ENUMX
2769   BFD_RELOC_ARM_T32_OFFSET_IMM
2770 ENUMX
2771   BFD_RELOC_ARM_HWLITERAL
2772 ENUMX
2773   BFD_RELOC_ARM_THUMB_ADD
2774 ENUMX
2775   BFD_RELOC_ARM_THUMB_IMM
2776 ENUMX
2777   BFD_RELOC_ARM_THUMB_SHIFT
2778 ENUMDOC
2779   These relocs are only used within the ARM assembler.  They are not
2780   (at present) written to any object files.
2781
2782 ENUM
2783   BFD_RELOC_SH_PCDISP8BY2
2784 ENUMX
2785   BFD_RELOC_SH_PCDISP12BY2
2786 ENUMX
2787   BFD_RELOC_SH_IMM3
2788 ENUMX
2789   BFD_RELOC_SH_IMM3U
2790 ENUMX
2791   BFD_RELOC_SH_DISP12
2792 ENUMX
2793   BFD_RELOC_SH_DISP12BY2
2794 ENUMX
2795   BFD_RELOC_SH_DISP12BY4
2796 ENUMX
2797   BFD_RELOC_SH_DISP12BY8
2798 ENUMX
2799   BFD_RELOC_SH_DISP20
2800 ENUMX
2801   BFD_RELOC_SH_DISP20BY8
2802 ENUMX
2803   BFD_RELOC_SH_IMM4
2804 ENUMX
2805   BFD_RELOC_SH_IMM4BY2
2806 ENUMX
2807   BFD_RELOC_SH_IMM4BY4
2808 ENUMX
2809   BFD_RELOC_SH_IMM8
2810 ENUMX
2811   BFD_RELOC_SH_IMM8BY2
2812 ENUMX
2813   BFD_RELOC_SH_IMM8BY4
2814 ENUMX
2815   BFD_RELOC_SH_PCRELIMM8BY2
2816 ENUMX
2817   BFD_RELOC_SH_PCRELIMM8BY4
2818 ENUMX
2819   BFD_RELOC_SH_SWITCH16
2820 ENUMX
2821   BFD_RELOC_SH_SWITCH32
2822 ENUMX
2823   BFD_RELOC_SH_USES
2824 ENUMX
2825   BFD_RELOC_SH_COUNT
2826 ENUMX
2827   BFD_RELOC_SH_ALIGN
2828 ENUMX
2829   BFD_RELOC_SH_CODE
2830 ENUMX
2831   BFD_RELOC_SH_DATA
2832 ENUMX
2833   BFD_RELOC_SH_LABEL
2834 ENUMX
2835   BFD_RELOC_SH_LOOP_START
2836 ENUMX
2837   BFD_RELOC_SH_LOOP_END
2838 ENUMX
2839   BFD_RELOC_SH_COPY
2840 ENUMX
2841   BFD_RELOC_SH_GLOB_DAT
2842 ENUMX
2843   BFD_RELOC_SH_JMP_SLOT
2844 ENUMX
2845   BFD_RELOC_SH_RELATIVE
2846 ENUMX
2847   BFD_RELOC_SH_GOTPC
2848 ENUMX
2849   BFD_RELOC_SH_GOT_LOW16
2850 ENUMX
2851   BFD_RELOC_SH_GOT_MEDLOW16
2852 ENUMX
2853   BFD_RELOC_SH_GOT_MEDHI16
2854 ENUMX
2855   BFD_RELOC_SH_GOT_HI16
2856 ENUMX
2857   BFD_RELOC_SH_GOTPLT_LOW16
2858 ENUMX
2859   BFD_RELOC_SH_GOTPLT_MEDLOW16
2860 ENUMX
2861   BFD_RELOC_SH_GOTPLT_MEDHI16
2862 ENUMX
2863   BFD_RELOC_SH_GOTPLT_HI16
2864 ENUMX
2865   BFD_RELOC_SH_PLT_LOW16
2866 ENUMX
2867   BFD_RELOC_SH_PLT_MEDLOW16
2868 ENUMX
2869   BFD_RELOC_SH_PLT_MEDHI16
2870 ENUMX
2871   BFD_RELOC_SH_PLT_HI16
2872 ENUMX
2873   BFD_RELOC_SH_GOTOFF_LOW16
2874 ENUMX
2875   BFD_RELOC_SH_GOTOFF_MEDLOW16
2876 ENUMX
2877   BFD_RELOC_SH_GOTOFF_MEDHI16
2878 ENUMX
2879   BFD_RELOC_SH_GOTOFF_HI16
2880 ENUMX
2881   BFD_RELOC_SH_GOTPC_LOW16
2882 ENUMX
2883   BFD_RELOC_SH_GOTPC_MEDLOW16
2884 ENUMX
2885   BFD_RELOC_SH_GOTPC_MEDHI16
2886 ENUMX
2887   BFD_RELOC_SH_GOTPC_HI16
2888 ENUMX
2889   BFD_RELOC_SH_COPY64
2890 ENUMX
2891   BFD_RELOC_SH_GLOB_DAT64
2892 ENUMX
2893   BFD_RELOC_SH_JMP_SLOT64
2894 ENUMX
2895   BFD_RELOC_SH_RELATIVE64
2896 ENUMX
2897   BFD_RELOC_SH_GOT10BY4
2898 ENUMX
2899   BFD_RELOC_SH_GOT10BY8
2900 ENUMX
2901   BFD_RELOC_SH_GOTPLT10BY4
2902 ENUMX
2903   BFD_RELOC_SH_GOTPLT10BY8
2904 ENUMX
2905   BFD_RELOC_SH_GOTPLT32
2906 ENUMX
2907   BFD_RELOC_SH_SHMEDIA_CODE
2908 ENUMX
2909   BFD_RELOC_SH_IMMU5
2910 ENUMX
2911   BFD_RELOC_SH_IMMS6
2912 ENUMX
2913   BFD_RELOC_SH_IMMS6BY32
2914 ENUMX
2915   BFD_RELOC_SH_IMMU6
2916 ENUMX
2917   BFD_RELOC_SH_IMMS10
2918 ENUMX
2919   BFD_RELOC_SH_IMMS10BY2
2920 ENUMX
2921   BFD_RELOC_SH_IMMS10BY4
2922 ENUMX
2923   BFD_RELOC_SH_IMMS10BY8
2924 ENUMX
2925   BFD_RELOC_SH_IMMS16
2926 ENUMX
2927   BFD_RELOC_SH_IMMU16
2928 ENUMX
2929   BFD_RELOC_SH_IMM_LOW16
2930 ENUMX
2931   BFD_RELOC_SH_IMM_LOW16_PCREL
2932 ENUMX
2933   BFD_RELOC_SH_IMM_MEDLOW16
2934 ENUMX
2935   BFD_RELOC_SH_IMM_MEDLOW16_PCREL
2936 ENUMX
2937   BFD_RELOC_SH_IMM_MEDHI16
2938 ENUMX
2939   BFD_RELOC_SH_IMM_MEDHI16_PCREL
2940 ENUMX
2941   BFD_RELOC_SH_IMM_HI16
2942 ENUMX
2943   BFD_RELOC_SH_IMM_HI16_PCREL
2944 ENUMX
2945   BFD_RELOC_SH_PT_16
2946 ENUMX
2947   BFD_RELOC_SH_TLS_GD_32
2948 ENUMX
2949   BFD_RELOC_SH_TLS_LD_32
2950 ENUMX
2951   BFD_RELOC_SH_TLS_LDO_32
2952 ENUMX
2953   BFD_RELOC_SH_TLS_IE_32
2954 ENUMX
2955   BFD_RELOC_SH_TLS_LE_32
2956 ENUMX
2957   BFD_RELOC_SH_TLS_DTPMOD32
2958 ENUMX
2959   BFD_RELOC_SH_TLS_DTPOFF32
2960 ENUMX
2961   BFD_RELOC_SH_TLS_TPOFF32
2962 ENUMDOC
2963   Renesas / SuperH SH relocs.  Not all of these appear in object files.
2964
2965 ENUM
2966   BFD_RELOC_ARC_B22_PCREL
2967 ENUMDOC
2968   ARC Cores relocs.
2969   ARC 22 bit pc-relative branch.  The lowest two bits must be zero and are
2970   not stored in the instruction.  The high 20 bits are installed in bits 26
2971   through 7 of the instruction.
2972 ENUM
2973   BFD_RELOC_ARC_B26
2974 ENUMDOC
2975   ARC 26 bit absolute branch.  The lowest two bits must be zero and are not
2976   stored in the instruction.  The high 24 bits are installed in bits 23
2977   through 0.
2978
2979 ENUM
2980   BFD_RELOC_D10V_10_PCREL_R
2981 ENUMDOC
2982   Mitsubishi D10V relocs.
2983   This is a 10-bit reloc with the right 2 bits
2984   assumed to be 0.
2985 ENUM
2986   BFD_RELOC_D10V_10_PCREL_L
2987 ENUMDOC
2988   Mitsubishi D10V relocs.
2989   This is a 10-bit reloc with the right 2 bits
2990   assumed to be 0.  This is the same as the previous reloc
2991   except it is in the left container, i.e.,
2992   shifted left 15 bits.
2993 ENUM
2994   BFD_RELOC_D10V_18
2995 ENUMDOC
2996   This is an 18-bit reloc with the right 2 bits
2997   assumed to be 0.
2998 ENUM
2999   BFD_RELOC_D10V_18_PCREL
3000 ENUMDOC
3001   This is an 18-bit reloc with the right 2 bits
3002   assumed to be 0.
3003
3004 ENUM
3005   BFD_RELOC_D30V_6
3006 ENUMDOC
3007   Mitsubishi D30V relocs.
3008   This is a 6-bit absolute reloc.
3009 ENUM
3010   BFD_RELOC_D30V_9_PCREL
3011 ENUMDOC
3012   This is a 6-bit pc-relative reloc with
3013   the right 3 bits assumed to be 0.
3014 ENUM
3015   BFD_RELOC_D30V_9_PCREL_R
3016 ENUMDOC
3017   This is a 6-bit pc-relative reloc with
3018   the right 3 bits assumed to be 0. Same
3019   as the previous reloc but on the right side
3020   of the container.
3021 ENUM
3022   BFD_RELOC_D30V_15
3023 ENUMDOC
3024   This is a 12-bit absolute reloc with the
3025   right 3 bitsassumed to be 0.
3026 ENUM
3027   BFD_RELOC_D30V_15_PCREL
3028 ENUMDOC
3029   This is a 12-bit pc-relative reloc with
3030   the right 3 bits assumed to be 0.
3031 ENUM
3032   BFD_RELOC_D30V_15_PCREL_R
3033 ENUMDOC
3034   This is a 12-bit pc-relative reloc with
3035   the right 3 bits assumed to be 0. Same
3036   as the previous reloc but on the right side
3037   of the container.
3038 ENUM
3039   BFD_RELOC_D30V_21
3040 ENUMDOC
3041   This is an 18-bit absolute reloc with
3042   the right 3 bits assumed to be 0.
3043 ENUM
3044   BFD_RELOC_D30V_21_PCREL
3045 ENUMDOC
3046   This is an 18-bit pc-relative reloc with
3047   the right 3 bits assumed to be 0.
3048 ENUM
3049   BFD_RELOC_D30V_21_PCREL_R
3050 ENUMDOC
3051   This is an 18-bit pc-relative reloc with
3052   the right 3 bits assumed to be 0. Same
3053   as the previous reloc but on the right side
3054   of the container.
3055 ENUM
3056   BFD_RELOC_D30V_32
3057 ENUMDOC
3058   This is a 32-bit absolute reloc.
3059 ENUM
3060   BFD_RELOC_D30V_32_PCREL
3061 ENUMDOC
3062   This is a 32-bit pc-relative reloc.
3063
3064 ENUM
3065   BFD_RELOC_DLX_HI16_S
3066 ENUMDOC
3067   DLX relocs
3068 ENUM
3069   BFD_RELOC_DLX_LO16
3070 ENUMDOC
3071   DLX relocs
3072 ENUM
3073   BFD_RELOC_DLX_JMP26
3074 ENUMDOC
3075   DLX relocs
3076
3077 ENUM
3078   BFD_RELOC_M32C_HI8
3079 ENUMDOC
3080   Renesas M16C/M32C Relocations.
3081
3082 ENUM
3083   BFD_RELOC_M32R_24
3084 ENUMDOC
3085   Renesas M32R (formerly Mitsubishi M32R) relocs.
3086   This is a 24 bit absolute address.
3087 ENUM
3088   BFD_RELOC_M32R_10_PCREL
3089 ENUMDOC
3090   This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0.
3091 ENUM
3092   BFD_RELOC_M32R_18_PCREL
3093 ENUMDOC
3094   This is an 18-bit reloc with the right 2 bits assumed to be 0.
3095 ENUM
3096   BFD_RELOC_M32R_26_PCREL
3097 ENUMDOC
3098   This is a 26-bit reloc with the right 2 bits assumed to be 0.
3099 ENUM
3100   BFD_RELOC_M32R_HI16_ULO
3101 ENUMDOC
3102   This is a 16-bit reloc containing the high 16 bits of an address
3103   used when the lower 16 bits are treated as unsigned.
3104 ENUM
3105   BFD_RELOC_M32R_HI16_SLO
3106 ENUMDOC
3107   This is a 16-bit reloc containing the high 16 bits of an address
3108   used when the lower 16 bits are treated as signed.
3109 ENUM
3110   BFD_RELOC_M32R_LO16
3111 ENUMDOC
3112   This is a 16-bit reloc containing the lower 16 bits of an address.
3113 ENUM
3114   BFD_RELOC_M32R_SDA16
3115 ENUMDOC
3116   This is a 16-bit reloc containing the small data area offset for use in
3117   add3, load, and store instructions.
3118 ENUM
3119   BFD_RELOC_M32R_GOT24
3120 ENUMX
3121   BFD_RELOC_M32R_26_PLTREL
3122 ENUMX
3123   BFD_RELOC_M32R_COPY
3124 ENUMX
3125   BFD_RELOC_M32R_GLOB_DAT
3126 ENUMX
3127   BFD_RELOC_M32R_JMP_SLOT
3128 ENUMX
3129   BFD_RELOC_M32R_RELATIVE
3130 ENUMX
3131   BFD_RELOC_M32R_GOTOFF
3132 ENUMX
3133   BFD_RELOC_M32R_GOTOFF_HI_ULO
3134 ENUMX
3135   BFD_RELOC_M32R_GOTOFF_HI_SLO
3136 ENUMX
3137   BFD_RELOC_M32R_GOTOFF_LO
3138 ENUMX
3139   BFD_RELOC_M32R_GOTPC24
3140 ENUMX
3141   BFD_RELOC_M32R_GOT16_HI_ULO
3142 ENUMX
3143   BFD_RELOC_M32R_GOT16_HI_SLO
3144 ENUMX
3145   BFD_RELOC_M32R_GOT16_LO
3146 ENUMX
3147   BFD_RELOC_M32R_GOTPC_HI_ULO
3148 ENUMX
3149   BFD_RELOC_M32R_GOTPC_HI_SLO
3150 ENUMX
3151   BFD_RELOC_M32R_GOTPC_LO
3152 ENUMDOC
3153   For PIC.
3154
3155
3156 ENUM
3157   BFD_RELOC_V850_9_PCREL
3158 ENUMDOC
3159   This is a 9-bit reloc
3160 ENUM
3161   BFD_RELOC_V850_22_PCREL
3162 ENUMDOC
3163   This is a 22-bit reloc
3164
3165 ENUM
3166   BFD_RELOC_V850_SDA_16_16_OFFSET
3167 ENUMDOC
3168   This is a 16 bit offset from the short data area pointer.
3169 ENUM
3170   BFD_RELOC_V850_SDA_15_16_OFFSET
3171 ENUMDOC
3172   This is a 16 bit offset (of which only 15 bits are used) from the
3173   short data area pointer.
3174 ENUM
3175   BFD_RELOC_V850_ZDA_16_16_OFFSET
3176 ENUMDOC
3177   This is a 16 bit offset from the zero data area pointer.
3178 ENUM
3179   BFD_RELOC_V850_ZDA_15_16_OFFSET
3180 ENUMDOC
3181   This is a 16 bit offset (of which only 15 bits are used) from the
3182   zero data area pointer.
3183 ENUM
3184   BFD_RELOC_V850_TDA_6_8_OFFSET
3185 ENUMDOC
3186   This is an 8 bit offset (of which only 6 bits are used) from the
3187   tiny data area pointer.
3188 ENUM
3189   BFD_RELOC_V850_TDA_7_8_OFFSET
3190 ENUMDOC
3191   This is an 8bit offset (of which only 7 bits are used) from the tiny
3192   data area pointer.
3193 ENUM
3194   BFD_RELOC_V850_TDA_7_7_OFFSET
3195 ENUMDOC
3196   This is a 7 bit offset from the tiny data area pointer.
3197 ENUM
3198   BFD_RELOC_V850_TDA_16_16_OFFSET
3199 ENUMDOC
3200   This is a 16 bit offset from the tiny data area pointer.
3201 COMMENT
3202 ENUM
3203   BFD_RELOC_V850_TDA_4_5_OFFSET
3204 ENUMDOC
3205   This is a 5 bit offset (of which only 4 bits are used) from the tiny
3206   data area pointer.
3207 ENUM
3208   BFD_RELOC_V850_TDA_4_4_OFFSET
3209 ENUMDOC
3210   This is a 4 bit offset from the tiny data area pointer.
3211 ENUM
3212   BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET
3213 ENUMDOC
3214   This is a 16 bit offset from the short data area pointer, with the
3215   bits placed non-contiguously in the instruction.
3216 ENUM
3217   BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET
3218 ENUMDOC
3219   This is a 16 bit offset from the zero data area pointer, with the
3220   bits placed non-contiguously in the instruction.
3221 ENUM
3222   BFD_RELOC_V850_CALLT_6_7_OFFSET
3223 ENUMDOC
3224   This is a 6 bit offset from the call table base pointer.
3225 ENUM
3226   BFD_RELOC_V850_CALLT_16_16_OFFSET
3227 ENUMDOC
3228   This is a 16 bit offset from the call table base pointer.
3229 ENUM
3230   BFD_RELOC_V850_LONGCALL
3231 ENUMDOC
3232   Used for relaxing indirect function calls.
3233 ENUM
3234   BFD_RELOC_V850_LONGJUMP
3235 ENUMDOC
3236   Used for relaxing indirect jumps.
3237 ENUM
3238   BFD_RELOC_V850_ALIGN
3239 ENUMDOC
3240   Used to maintain alignment whilst relaxing.
3241 ENUM
3242   BFD_RELOC_V850_LO16_SPLIT_OFFSET
3243 ENUMDOC
3244   This is a variation of BFD_RELOC_LO16 that can be used in v850e ld.bu
3245   instructions.
3246 ENUM
3247   BFD_RELOC_MN10300_32_PCREL
3248 ENUMDOC
3249   This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the
3250   instruction.
3251 ENUM
3252   BFD_RELOC_MN10300_16_PCREL
3253 ENUMDOC
3254   This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the
3255   instruction.
3256
3257 ENUM
3258   BFD_RELOC_TIC30_LDP
3259 ENUMDOC
3260   This is a 8bit DP reloc for the tms320c30, where the most
3261   significant 8 bits of a 24 bit word are placed into the least
3262   significant 8 bits of the opcode.
3263
3264 ENUM
3265   BFD_RELOC_TIC54X_PARTLS7
3266 ENUMDOC
3267   This is a 7bit reloc for the tms320c54x, where the least
3268   significant 7 bits of a 16 bit word are placed into the least
3269   significant 7 bits of the opcode.
3270
3271 ENUM
3272   BFD_RELOC_TIC54X_PARTMS9
3273 ENUMDOC
3274   This is a 9bit DP reloc for the tms320c54x, where the most
3275   significant 9 bits of a 16 bit word are placed into the least
3276   significant 9 bits of the opcode.
3277
3278 ENUM
3279   BFD_RELOC_TIC54X_23
3280 ENUMDOC
3281   This is an extended address 23-bit reloc for the tms320c54x.
3282
3283 ENUM
3284   BFD_RELOC_TIC54X_16_OF_23
3285 ENUMDOC
3286   This is a 16-bit reloc for the tms320c54x, where the least
3287   significant 16 bits of a 23-bit extended address are placed into
3288   the opcode.
3289
3290 ENUM
3291   BFD_RELOC_TIC54X_MS7_OF_23
3292 ENUMDOC
3293   This is a reloc for the tms320c54x, where the most
3294   significant 7 bits of a 23-bit extended address are placed into
3295   the opcode.
3296
3297 ENUM
3298   BFD_RELOC_FR30_48
3299 ENUMDOC
3300   This is a 48 bit reloc for the FR30 that stores 32 bits.
3301 ENUM
3302   BFD_RELOC_FR30_20
3303 ENUMDOC
3304   This is a 32 bit reloc for the FR30 that stores 20 bits split up into
3305   two sections.
3306 ENUM
3307   BFD_RELOC_FR30_6_IN_4
3308 ENUMDOC
3309   This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in
3310   4 bits.
3311 ENUM
3312   BFD_RELOC_FR30_8_IN_8
3313 ENUMDOC
3314   This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset
3315   into 8 bits.
3316 ENUM
3317   BFD_RELOC_FR30_9_IN_8
3318 ENUMDOC
3319   This is a 16 bit reloc for the FR30 that stores a 9 bit short offset
3320   into 8 bits.
3321 ENUM
3322   BFD_RELOC_FR30_10_IN_8
3323 ENUMDOC
3324   This is a 16 bit reloc for the FR30 that stores a 10 bit word offset
3325   into 8 bits.
3326 ENUM
3327   BFD_RELOC_FR30_9_PCREL
3328 ENUMDOC
3329   This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative
3330   short offset into 8 bits.
3331 ENUM
3332   BFD_RELOC_FR30_12_PCREL
3333 ENUMDOC
3334   This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative
3335   short offset into 11 bits.
3336
3337 ENUM
3338   BFD_RELOC_MCORE_PCREL_IMM8BY4
3339 ENUMX
3340   BFD_RELOC_MCORE_PCREL_IMM11BY2
3341 ENUMX
3342   BFD_RELOC_MCORE_PCREL_IMM4BY2
3343 ENUMX
3344   BFD_RELOC_MCORE_PCREL_32
3345 ENUMX
3346   BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2
3347 ENUMX
3348   BFD_RELOC_MCORE_RVA
3349 ENUMDOC
3350   Motorola Mcore relocations.
3351
3352 ENUM
3353   BFD_RELOC_MMIX_GETA
3354 ENUMX
3355   BFD_RELOC_MMIX_GETA_1
3356 ENUMX
3357   BFD_RELOC_MMIX_GETA_2
3358 ENUMX
3359   BFD_RELOC_MMIX_GETA_3
3360 ENUMDOC
3361   These are relocations for the GETA instruction.
3362 ENUM
3363   BFD_RELOC_MMIX_CBRANCH
3364 ENUMX
3365   BFD_RELOC_MMIX_CBRANCH_J
3366 ENUMX
3367   BFD_RELOC_MMIX_CBRANCH_1
3368 ENUMX
3369   BFD_RELOC_MMIX_CBRANCH_2
3370 ENUMX
3371   BFD_RELOC_MMIX_CBRANCH_3
3372 ENUMDOC
3373   These are relocations for a conditional branch instruction.
3374 ENUM
3375   BFD_RELOC_MMIX_PUSHJ
3376 ENUMX
3377   BFD_RELOC_MMIX_PUSHJ_1
3378 ENUMX
3379   BFD_RELOC_MMIX_PUSHJ_2
3380 ENUMX
3381   BFD_RELOC_MMIX_PUSHJ_3
3382 ENUMX
3383   BFD_RELOC_MMIX_PUSHJ_STUBBABLE
3384 ENUMDOC
3385   These are relocations for the PUSHJ instruction.
3386 ENUM
3387   BFD_RELOC_MMIX_JMP
3388 ENUMX
3389   BFD_RELOC_MMIX_JMP_1
3390 ENUMX
3391   BFD_RELOC_MMIX_JMP_2
3392 ENUMX
3393   BFD_RELOC_MMIX_JMP_3
3394 ENUMDOC
3395   These are relocations for the JMP instruction.
3396 ENUM
3397   BFD_RELOC_MMIX_ADDR19
3398 ENUMDOC
3399   This is a relocation for a relative address as in a GETA instruction or
3400   a branch.
3401 ENUM
3402   BFD_RELOC_MMIX_ADDR27
3403 ENUMDOC
3404   This is a relocation for a relative address as in a JMP instruction.
3405 ENUM
3406   BFD_RELOC_MMIX_REG_OR_BYTE
3407 ENUMDOC
3408   This is a relocation for an instruction field that may be a general
3409   register or a value 0..255.
3410 ENUM
3411   BFD_RELOC_MMIX_REG
3412 ENUMDOC
3413   This is a relocation for an instruction field that may be a general
3414   register.
3415 ENUM
3416   BFD_RELOC_MMIX_BASE_PLUS_OFFSET
3417 ENUMDOC
3418   This is a relocation for two instruction fields holding a register and
3419   an offset, the equivalent of the relocation.
3420 ENUM
3421   BFD_RELOC_MMIX_LOCAL
3422 ENUMDOC
3423   This relocation is an assertion that the expression is not allocated as
3424   a global register.  It does not modify contents.
3425
3426 ENUM
3427   BFD_RELOC_AVR_7_PCREL
3428 ENUMDOC
3429   This is a 16 bit reloc for the AVR that stores 8 bit pc relative
3430   short offset into 7 bits.
3431 ENUM
3432   BFD_RELOC_AVR_13_PCREL
3433 ENUMDOC
3434   This is a 16 bit reloc for the AVR that stores 13 bit pc relative
3435   short offset into 12 bits.
3436 ENUM
3437   BFD_RELOC_AVR_16_PM
3438 ENUMDOC
3439   This is a 16 bit reloc for the AVR that stores 17 bit value (usually
3440   program memory address) into 16 bits.
3441 ENUM
3442   BFD_RELOC_AVR_LO8_LDI
3443 ENUMDOC
3444   This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3445   data memory address) into 8 bit immediate value of LDI insn.
3446 ENUM
3447   BFD_RELOC_AVR_HI8_LDI
3448 ENUMDOC
3449   This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3450   of data memory address) into 8 bit immediate value of LDI insn.
3451 ENUM
3452   BFD_RELOC_AVR_HH8_LDI
3453 ENUMDOC
3454   This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3455   of program memory address) into 8 bit immediate value of LDI insn.
3456 ENUM
3457   BFD_RELOC_AVR_LO8_LDI_NEG
3458 ENUMDOC
3459   This is a 16 bit reloc for the AVR that stores negated 8 bit value
3460   (usually data memory address) into 8 bit immediate value of SUBI insn.
3461 ENUM
3462   BFD_RELOC_AVR_HI8_LDI_NEG
3463 ENUMDOC
3464   This is a 16 bit reloc for the AVR that stores negated 8 bit value
3465   (high 8 bit of data memory address) into 8 bit immediate value of
3466   SUBI insn.
3467 ENUM
3468   BFD_RELOC_AVR_HH8_LDI_NEG
3469 ENUMDOC
3470   This is a 16 bit reloc for the AVR that stores negated 8 bit value
3471   (most high 8 bit of program memory address) into 8 bit immediate value
3472   of LDI or SUBI insn.
3473 ENUM
3474   BFD_RELOC_AVR_LO8_LDI_PM
3475 ENUMDOC
3476   This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3477   command address) into 8 bit immediate value of LDI insn.
3478 ENUM
3479   BFD_RELOC_AVR_HI8_LDI_PM
3480 ENUMDOC
3481   This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3482   of command address) into 8 bit immediate value of LDI insn.
3483 ENUM
3484   BFD_RELOC_AVR_HH8_LDI_PM
3485 ENUMDOC
3486   This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3487   of command address) into 8 bit immediate value of LDI insn.
3488 ENUM
3489   BFD_RELOC_AVR_LO8_LDI_PM_NEG
3490 ENUMDOC
3491   This is a 16 bit reloc for the AVR that stores negated 8 bit value
3492   (usually command address) into 8 bit immediate value of SUBI insn.
3493 ENUM
3494   BFD_RELOC_AVR_HI8_LDI_PM_NEG
3495 ENUMDOC
3496   This is a 16 bit reloc for the AVR that stores negated 8 bit value
3497   (high 8 bit of 16 bit command address) into 8 bit immediate value
3498   of SUBI insn.
3499 ENUM
3500   BFD_RELOC_AVR_HH8_LDI_PM_NEG
3501 ENUMDOC
3502   This is a 16 bit reloc for the AVR that stores negated 8 bit value
3503   (high 6 bit of 22 bit command address) into 8 bit immediate
3504   value of SUBI insn.
3505 ENUM
3506   BFD_RELOC_AVR_CALL
3507 ENUMDOC
3508   This is a 32 bit reloc for the AVR that stores 23 bit value
3509   into 22 bits.
3510 ENUM
3511   BFD_RELOC_AVR_LDI
3512 ENUMDOC
3513   This is a 16 bit reloc for the AVR that stores all needed bits
3514   for absolute addressing with ldi with overflow check to linktime
3515 ENUM
3516   BFD_RELOC_AVR_6
3517 ENUMDOC
3518   This is a 6 bit reloc for the AVR that stores offset for ldd/std
3519   instructions
3520 ENUM
3521   BFD_RELOC_AVR_6_ADIW
3522 ENUMDOC
3523   This is a 6 bit reloc for the AVR that stores offset for adiw/sbiw
3524   instructions
3525
3526 ENUM
3527   BFD_RELOC_390_12
3528 ENUMDOC
3529    Direct 12 bit.
3530 ENUM
3531   BFD_RELOC_390_GOT12
3532 ENUMDOC
3533   12 bit GOT offset.
3534 ENUM
3535   BFD_RELOC_390_PLT32
3536 ENUMDOC
3537   32 bit PC relative PLT address.
3538 ENUM
3539   BFD_RELOC_390_COPY
3540 ENUMDOC
3541   Copy symbol at runtime.
3542 ENUM
3543   BFD_RELOC_390_GLOB_DAT
3544 ENUMDOC
3545   Create GOT entry.
3546 ENUM
3547   BFD_RELOC_390_JMP_SLOT
3548 ENUMDOC
3549   Create PLT entry.
3550 ENUM
3551   BFD_RELOC_390_RELATIVE
3552 ENUMDOC
3553   Adjust by program base.
3554 ENUM
3555   BFD_RELOC_390_GOTPC
3556 ENUMDOC
3557   32 bit PC relative offset to GOT.
3558 ENUM
3559   BFD_RELOC_390_GOT16
3560 ENUMDOC
3561   16 bit GOT offset.
3562 ENUM
3563   BFD_RELOC_390_PC16DBL
3564 ENUMDOC
3565   PC relative 16 bit shifted by 1.
3566 ENUM
3567   BFD_RELOC_390_PLT16DBL
3568 ENUMDOC
3569   16 bit PC rel. PLT shifted by 1.
3570 ENUM
3571   BFD_RELOC_390_PC32DBL
3572 ENUMDOC
3573   PC relative 32 bit shifted by 1.
3574 ENUM
3575   BFD_RELOC_390_PLT32DBL
3576 ENUMDOC
3577   32 bit PC rel. PLT shifted by 1.
3578 ENUM
3579   BFD_RELOC_390_GOTPCDBL
3580 ENUMDOC
3581   32 bit PC rel. GOT shifted by 1.
3582 ENUM
3583   BFD_RELOC_390_GOT64
3584 ENUMDOC
3585   64 bit GOT offset.
3586 ENUM
3587   BFD_RELOC_390_PLT64
3588 ENUMDOC
3589   64 bit PC relative PLT address.
3590 ENUM
3591   BFD_RELOC_390_GOTENT
3592 ENUMDOC
3593   32 bit rel. offset to GOT entry.
3594 ENUM
3595   BFD_RELOC_390_GOTOFF64
3596 ENUMDOC
3597   64 bit offset to GOT.
3598 ENUM
3599   BFD_RELOC_390_GOTPLT12
3600 ENUMDOC
3601   12-bit offset to symbol-entry within GOT, with PLT handling.
3602 ENUM
3603   BFD_RELOC_390_GOTPLT16
3604 ENUMDOC
3605   16-bit offset to symbol-entry within GOT, with PLT handling.
3606 ENUM
3607   BFD_RELOC_390_GOTPLT32
3608 ENUMDOC
3609   32-bit offset to symbol-entry within GOT, with PLT handling.
3610 ENUM
3611   BFD_RELOC_390_GOTPLT64
3612 ENUMDOC
3613   64-bit offset to symbol-entry within GOT, with PLT handling.
3614 ENUM
3615   BFD_RELOC_390_GOTPLTENT
3616 ENUMDOC
3617   32-bit rel. offset to symbol-entry within GOT, with PLT handling.
3618 ENUM
3619   BFD_RELOC_390_PLTOFF16
3620 ENUMDOC
3621   16-bit rel. offset from the GOT to a PLT entry.
3622 ENUM
3623   BFD_RELOC_390_PLTOFF32
3624 ENUMDOC
3625   32-bit rel. offset from the GOT to a PLT entry.
3626 ENUM
3627   BFD_RELOC_390_PLTOFF64
3628 ENUMDOC
3629   64-bit rel. offset from the GOT to a PLT entry.
3630
3631 ENUM
3632   BFD_RELOC_390_TLS_LOAD
3633 ENUMX
3634   BFD_RELOC_390_TLS_GDCALL
3635 ENUMX
3636   BFD_RELOC_390_TLS_LDCALL
3637 ENUMX
3638   BFD_RELOC_390_TLS_GD32
3639 ENUMX
3640   BFD_RELOC_390_TLS_GD64
3641 ENUMX
3642   BFD_RELOC_390_TLS_GOTIE12
3643 ENUMX
3644   BFD_RELOC_390_TLS_GOTIE32
3645 ENUMX
3646   BFD_RELOC_390_TLS_GOTIE64
3647 ENUMX
3648   BFD_RELOC_390_TLS_LDM32
3649 ENUMX
3650   BFD_RELOC_390_TLS_LDM64
3651 ENUMX
3652   BFD_RELOC_390_TLS_IE32
3653 ENUMX
3654   BFD_RELOC_390_TLS_IE64
3655 ENUMX
3656   BFD_RELOC_390_TLS_IEENT
3657 ENUMX
3658   BFD_RELOC_390_TLS_LE32
3659 ENUMX
3660   BFD_RELOC_390_TLS_LE64
3661 ENUMX
3662   BFD_RELOC_390_TLS_LDO32
3663 ENUMX
3664   BFD_RELOC_390_TLS_LDO64
3665 ENUMX
3666   BFD_RELOC_390_TLS_DTPMOD
3667 ENUMX
3668   BFD_RELOC_390_TLS_DTPOFF
3669 ENUMX
3670   BFD_RELOC_390_TLS_TPOFF
3671 ENUMDOC
3672   s390 tls relocations.
3673
3674 ENUM
3675   BFD_RELOC_390_20
3676 ENUMX
3677   BFD_RELOC_390_GOT20
3678 ENUMX
3679   BFD_RELOC_390_GOTPLT20
3680 ENUMX
3681   BFD_RELOC_390_TLS_GOTIE20
3682 ENUMDOC
3683   Long displacement extension.
3684
3685 ENUM
3686   BFD_RELOC_IP2K_FR9
3687 ENUMDOC
3688   Scenix IP2K - 9-bit register number / data address
3689 ENUM
3690   BFD_RELOC_IP2K_BANK
3691 ENUMDOC
3692   Scenix IP2K - 4-bit register/data bank number
3693 ENUM
3694   BFD_RELOC_IP2K_ADDR16CJP
3695 ENUMDOC
3696   Scenix IP2K - low 13 bits of instruction word address
3697 ENUM
3698   BFD_RELOC_IP2K_PAGE3
3699 ENUMDOC
3700   Scenix IP2K - high 3 bits of instruction word address
3701 ENUM
3702   BFD_RELOC_IP2K_LO8DATA
3703 ENUMX
3704   BFD_RELOC_IP2K_HI8DATA
3705 ENUMX
3706   BFD_RELOC_IP2K_EX8DATA
3707 ENUMDOC
3708   Scenix IP2K - ext/low/high 8 bits of data address
3709 ENUM
3710   BFD_RELOC_IP2K_LO8INSN
3711 ENUMX
3712   BFD_RELOC_IP2K_HI8INSN
3713 ENUMDOC
3714   Scenix IP2K - low/high 8 bits of instruction word address
3715 ENUM
3716   BFD_RELOC_IP2K_PC_SKIP
3717 ENUMDOC
3718   Scenix IP2K - even/odd PC modifier to modify snb pcl.0
3719 ENUM
3720   BFD_RELOC_IP2K_TEXT
3721 ENUMDOC
3722   Scenix IP2K - 16 bit word address in text section.
3723 ENUM
3724   BFD_RELOC_IP2K_FR_OFFSET
3725 ENUMDOC
3726   Scenix IP2K - 7-bit sp or dp offset
3727 ENUM
3728   BFD_RELOC_VPE4KMATH_DATA
3729 ENUMX
3730   BFD_RELOC_VPE4KMATH_INSN
3731 ENUMDOC
3732   Scenix VPE4K coprocessor - data/insn-space addressing
3733
3734 ENUM
3735   BFD_RELOC_VTABLE_INHERIT
3736 ENUMX
3737   BFD_RELOC_VTABLE_ENTRY
3738 ENUMDOC
3739   These two relocations are used by the linker to determine which of
3740   the entries in a C++ virtual function table are actually used.  When
3741   the --gc-sections option is given, the linker will zero out the entries
3742   that are not used, so that the code for those functions need not be
3743   included in the output.
3744
3745   VTABLE_INHERIT is a zero-space relocation used to describe to the
3746   linker the inheritance tree of a C++ virtual function table.  The
3747   relocation's symbol should be the parent class' vtable, and the
3748   relocation should be located at the child vtable.
3749
3750   VTABLE_ENTRY is a zero-space relocation that describes the use of a
3751   virtual function table entry.  The reloc's symbol should refer to the
3752   table of the class mentioned in the code.  Off of that base, an offset
3753   describes the entry that is being used.  For Rela hosts, this offset
3754   is stored in the reloc's addend.  For Rel hosts, we are forced to put
3755   this offset in the reloc's section offset.
3756
3757 ENUM
3758   BFD_RELOC_IA64_IMM14
3759 ENUMX
3760   BFD_RELOC_IA64_IMM22
3761 ENUMX
3762   BFD_RELOC_IA64_IMM64
3763 ENUMX
3764   BFD_RELOC_IA64_DIR32MSB
3765 ENUMX
3766   BFD_RELOC_IA64_DIR32LSB
3767 ENUMX
3768   BFD_RELOC_IA64_DIR64MSB
3769 ENUMX
3770   BFD_RELOC_IA64_DIR64LSB
3771 ENUMX
3772   BFD_RELOC_IA64_GPREL22
3773 ENUMX
3774   BFD_RELOC_IA64_GPREL64I
3775 ENUMX
3776   BFD_RELOC_IA64_GPREL32MSB
3777 ENUMX
3778   BFD_RELOC_IA64_GPREL32LSB
3779 ENUMX
3780   BFD_RELOC_IA64_GPREL64MSB
3781 ENUMX
3782   BFD_RELOC_IA64_GPREL64LSB
3783 ENUMX
3784   BFD_RELOC_IA64_LTOFF22
3785 ENUMX
3786   BFD_RELOC_IA64_LTOFF64I
3787 ENUMX
3788   BFD_RELOC_IA64_PLTOFF22
3789 ENUMX
3790   BFD_RELOC_IA64_PLTOFF64I
3791 ENUMX
3792   BFD_RELOC_IA64_PLTOFF64MSB
3793 ENUMX
3794   BFD_RELOC_IA64_PLTOFF64LSB
3795 ENUMX
3796   BFD_RELOC_IA64_FPTR64I
3797 ENUMX
3798   BFD_RELOC_IA64_FPTR32MSB
3799 ENUMX
3800   BFD_RELOC_IA64_FPTR32LSB
3801 ENUMX
3802   BFD_RELOC_IA64_FPTR64MSB
3803 ENUMX
3804   BFD_RELOC_IA64_FPTR64LSB
3805 ENUMX
3806   BFD_RELOC_IA64_PCREL21B
3807 ENUMX
3808   BFD_RELOC_IA64_PCREL21BI
3809 ENUMX
3810   BFD_RELOC_IA64_PCREL21M
3811 ENUMX
3812   BFD_RELOC_IA64_PCREL21F
3813 ENUMX
3814   BFD_RELOC_IA64_PCREL22
3815 ENUMX
3816   BFD_RELOC_IA64_PCREL60B
3817 ENUMX
3818   BFD_RELOC_IA64_PCREL64I
3819 ENUMX
3820   BFD_RELOC_IA64_PCREL32MSB
3821 ENUMX
3822   BFD_RELOC_IA64_PCREL32LSB
3823 ENUMX
3824   BFD_RELOC_IA64_PCREL64MSB
3825 ENUMX
3826   BFD_RELOC_IA64_PCREL64LSB
3827 ENUMX
3828   BFD_RELOC_IA64_LTOFF_FPTR22
3829 ENUMX
3830   BFD_RELOC_IA64_LTOFF_FPTR64I
3831 ENUMX
3832   BFD_RELOC_IA64_LTOFF_FPTR32MSB
3833 ENUMX
3834   BFD_RELOC_IA64_LTOFF_FPTR32LSB
3835 ENUMX
3836   BFD_RELOC_IA64_LTOFF_FPTR64MSB
3837 ENUMX
3838   BFD_RELOC_IA64_LTOFF_FPTR64LSB
3839 ENUMX
3840   BFD_RELOC_IA64_SEGREL32MSB
3841 ENUMX
3842   BFD_RELOC_IA64_SEGREL32LSB
3843 ENUMX
3844   BFD_RELOC_IA64_SEGREL64MSB
3845 ENUMX
3846   BFD_RELOC_IA64_SEGREL64LSB
3847 ENUMX
3848   BFD_RELOC_IA64_SECREL32MSB
3849 ENUMX
3850   BFD_RELOC_IA64_SECREL32LSB
3851 ENUMX
3852   BFD_RELOC_IA64_SECREL64MSB
3853 ENUMX
3854   BFD_RELOC_IA64_SECREL64LSB
3855 ENUMX
3856   BFD_RELOC_IA64_REL32MSB
3857 ENUMX
3858   BFD_RELOC_IA64_REL32LSB
3859 ENUMX
3860   BFD_RELOC_IA64_REL64MSB
3861 ENUMX
3862   BFD_RELOC_IA64_REL64LSB
3863 ENUMX
3864   BFD_RELOC_IA64_LTV32MSB
3865 ENUMX
3866   BFD_RELOC_IA64_LTV32LSB
3867 ENUMX
3868   BFD_RELOC_IA64_LTV64MSB
3869 ENUMX
3870   BFD_RELOC_IA64_LTV64LSB
3871 ENUMX
3872   BFD_RELOC_IA64_IPLTMSB
3873 ENUMX
3874   BFD_RELOC_IA64_IPLTLSB
3875 ENUMX
3876   BFD_RELOC_IA64_COPY
3877 ENUMX
3878   BFD_RELOC_IA64_LTOFF22X
3879 ENUMX
3880   BFD_RELOC_IA64_LDXMOV
3881 ENUMX
3882   BFD_RELOC_IA64_TPREL14
3883 ENUMX
3884   BFD_RELOC_IA64_TPREL22
3885 ENUMX
3886   BFD_RELOC_IA64_TPREL64I
3887 ENUMX
3888   BFD_RELOC_IA64_TPREL64MSB
3889 ENUMX
3890   BFD_RELOC_IA64_TPREL64LSB
3891 ENUMX
3892   BFD_RELOC_IA64_LTOFF_TPREL22
3893 ENUMX
3894   BFD_RELOC_IA64_DTPMOD64MSB
3895 ENUMX
3896   BFD_RELOC_IA64_DTPMOD64LSB
3897 ENUMX
3898   BFD_RELOC_IA64_LTOFF_DTPMOD22
3899 ENUMX
3900   BFD_RELOC_IA64_DTPREL14
3901 ENUMX
3902   BFD_RELOC_IA64_DTPREL22
3903 ENUMX
3904   BFD_RELOC_IA64_DTPREL64I
3905 ENUMX
3906   BFD_RELOC_IA64_DTPREL32MSB
3907 ENUMX
3908   BFD_RELOC_IA64_DTPREL32LSB
3909 ENUMX
3910   BFD_RELOC_IA64_DTPREL64MSB
3911 ENUMX
3912   BFD_RELOC_IA64_DTPREL64LSB
3913 ENUMX
3914   BFD_RELOC_IA64_LTOFF_DTPREL22
3915 ENUMDOC
3916   Intel IA64 Relocations.
3917
3918 ENUM
3919   BFD_RELOC_M68HC11_HI8
3920 ENUMDOC
3921   Motorola 68HC11 reloc.
3922   This is the 8 bit high part of an absolute address.
3923 ENUM
3924   BFD_RELOC_M68HC11_LO8
3925 ENUMDOC
3926   Motorola 68HC11 reloc.
3927   This is the 8 bit low part of an absolute address.
3928 ENUM
3929   BFD_RELOC_M68HC11_3B
3930 ENUMDOC
3931   Motorola 68HC11 reloc.
3932   This is the 3 bit of a value.
3933 ENUM
3934   BFD_RELOC_M68HC11_RL_JUMP
3935 ENUMDOC
3936   Motorola 68HC11 reloc.
3937   This reloc marks the beginning of a jump/call instruction.
3938   It is used for linker relaxation to correctly identify beginning
3939   of instruction and change some branches to use PC-relative
3940   addressing mode.
3941 ENUM
3942   BFD_RELOC_M68HC11_RL_GROUP
3943 ENUMDOC
3944   Motorola 68HC11 reloc.
3945   This reloc marks a group of several instructions that gcc generates
3946   and for which the linker relaxation pass can modify and/or remove
3947   some of them.
3948 ENUM
3949   BFD_RELOC_M68HC11_LO16
3950 ENUMDOC
3951   Motorola 68HC11 reloc.
3952   This is the 16-bit lower part of an address.  It is used for 'call'
3953   instruction to specify the symbol address without any special
3954   transformation (due to memory bank window).
3955 ENUM
3956   BFD_RELOC_M68HC11_PAGE
3957 ENUMDOC
3958   Motorola 68HC11 reloc.
3959   This is a 8-bit reloc that specifies the page number of an address.
3960   It is used by 'call' instruction to specify the page number of
3961   the symbol.
3962 ENUM
3963   BFD_RELOC_M68HC11_24
3964 ENUMDOC
3965   Motorola 68HC11 reloc.
3966   This is a 24-bit reloc that represents the address with a 16-bit
3967   value and a 8-bit page number.  The symbol address is transformed
3968   to follow the 16K memory bank of 68HC12 (seen as mapped in the window).
3969 ENUM
3970   BFD_RELOC_M68HC12_5B
3971 ENUMDOC
3972   Motorola 68HC12 reloc.
3973   This is the 5 bits of a value.
3974
3975 ENUM
3976   BFD_RELOC_16C_NUM08
3977 ENUMX
3978   BFD_RELOC_16C_NUM08_C
3979 ENUMX
3980   BFD_RELOC_16C_NUM16
3981 ENUMX
3982   BFD_RELOC_16C_NUM16_C
3983 ENUMX
3984   BFD_RELOC_16C_NUM32
3985 ENUMX
3986   BFD_RELOC_16C_NUM32_C
3987 ENUMX
3988   BFD_RELOC_16C_DISP04
3989 ENUMX
3990   BFD_RELOC_16C_DISP04_C
3991 ENUMX
3992   BFD_RELOC_16C_DISP08
3993 ENUMX
3994   BFD_RELOC_16C_DISP08_C
3995 ENUMX
3996   BFD_RELOC_16C_DISP16
3997 ENUMX
3998   BFD_RELOC_16C_DISP16_C
3999 ENUMX
4000   BFD_RELOC_16C_DISP24
4001 ENUMX
4002   BFD_RELOC_16C_DISP24_C
4003 ENUMX
4004   BFD_RELOC_16C_DISP24a
4005 ENUMX
4006   BFD_RELOC_16C_DISP24a_C
4007 ENUMX
4008   BFD_RELOC_16C_REG04
4009 ENUMX
4010   BFD_RELOC_16C_REG04_C
4011 ENUMX
4012   BFD_RELOC_16C_REG04a
4013 ENUMX
4014   BFD_RELOC_16C_REG04a_C
4015 ENUMX
4016   BFD_RELOC_16C_REG14
4017 ENUMX
4018   BFD_RELOC_16C_REG14_C
4019 ENUMX
4020   BFD_RELOC_16C_REG16
4021 ENUMX
4022   BFD_RELOC_16C_REG16_C
4023 ENUMX
4024   BFD_RELOC_16C_REG20
4025 ENUMX
4026   BFD_RELOC_16C_REG20_C
4027 ENUMX
4028   BFD_RELOC_16C_ABS20
4029 ENUMX
4030   BFD_RELOC_16C_ABS20_C
4031 ENUMX
4032   BFD_RELOC_16C_ABS24
4033 ENUMX
4034   BFD_RELOC_16C_ABS24_C
4035 ENUMX
4036   BFD_RELOC_16C_IMM04
4037 ENUMX
4038   BFD_RELOC_16C_IMM04_C
4039 ENUMX
4040   BFD_RELOC_16C_IMM16
4041 ENUMX
4042   BFD_RELOC_16C_IMM16_C
4043 ENUMX
4044   BFD_RELOC_16C_IMM20
4045 ENUMX
4046   BFD_RELOC_16C_IMM20_C
4047 ENUMX
4048   BFD_RELOC_16C_IMM24
4049 ENUMX
4050   BFD_RELOC_16C_IMM24_C
4051 ENUMX
4052   BFD_RELOC_16C_IMM32
4053 ENUMX
4054   BFD_RELOC_16C_IMM32_C
4055 ENUMDOC
4056   NS CR16C Relocations.
4057
4058 ENUM
4059   BFD_RELOC_CRX_REL4
4060 ENUMX
4061   BFD_RELOC_CRX_REL8
4062 ENUMX
4063   BFD_RELOC_CRX_REL8_CMP
4064 ENUMX
4065   BFD_RELOC_CRX_REL16
4066 ENUMX
4067   BFD_RELOC_CRX_REL24
4068 ENUMX
4069   BFD_RELOC_CRX_REL32
4070 ENUMX
4071   BFD_RELOC_CRX_REGREL12
4072 ENUMX
4073   BFD_RELOC_CRX_REGREL22
4074 ENUMX
4075   BFD_RELOC_CRX_REGREL28
4076 ENUMX
4077   BFD_RELOC_CRX_REGREL32
4078 ENUMX
4079   BFD_RELOC_CRX_ABS16
4080 ENUMX
4081   BFD_RELOC_CRX_ABS32
4082 ENUMX
4083   BFD_RELOC_CRX_NUM8
4084 ENUMX
4085   BFD_RELOC_CRX_NUM16
4086 ENUMX
4087   BFD_RELOC_CRX_NUM32
4088 ENUMX
4089   BFD_RELOC_CRX_IMM16
4090 ENUMX
4091   BFD_RELOC_CRX_IMM32
4092 ENUMX
4093   BFD_RELOC_CRX_SWITCH8
4094 ENUMX
4095   BFD_RELOC_CRX_SWITCH16
4096 ENUMX
4097   BFD_RELOC_CRX_SWITCH32
4098 ENUMDOC
4099   NS CRX Relocations.
4100
4101 ENUM
4102   BFD_RELOC_CRIS_BDISP8
4103 ENUMX
4104   BFD_RELOC_CRIS_UNSIGNED_5
4105 ENUMX
4106   BFD_RELOC_CRIS_SIGNED_6
4107 ENUMX
4108   BFD_RELOC_CRIS_UNSIGNED_6
4109 ENUMX
4110   BFD_RELOC_CRIS_SIGNED_8
4111 ENUMX
4112   BFD_RELOC_CRIS_UNSIGNED_8
4113 ENUMX
4114   BFD_RELOC_CRIS_SIGNED_16
4115 ENUMX
4116   BFD_RELOC_CRIS_UNSIGNED_16
4117 ENUMX
4118   BFD_RELOC_CRIS_LAPCQ_OFFSET
4119 ENUMX
4120   BFD_RELOC_CRIS_UNSIGNED_4
4121 ENUMDOC
4122   These relocs are only used within the CRIS assembler.  They are not
4123   (at present) written to any object files.
4124 ENUM
4125   BFD_RELOC_CRIS_COPY
4126 ENUMX
4127   BFD_RELOC_CRIS_GLOB_DAT
4128 ENUMX
4129   BFD_RELOC_CRIS_JUMP_SLOT
4130 ENUMX
4131   BFD_RELOC_CRIS_RELATIVE
4132 ENUMDOC
4133   Relocs used in ELF shared libraries for CRIS.
4134 ENUM
4135   BFD_RELOC_CRIS_32_GOT
4136 ENUMDOC
4137   32-bit offset to symbol-entry within GOT.
4138 ENUM
4139   BFD_RELOC_CRIS_16_GOT
4140 ENUMDOC
4141   16-bit offset to symbol-entry within GOT.
4142 ENUM
4143   BFD_RELOC_CRIS_32_GOTPLT
4144 ENUMDOC
4145   32-bit offset to symbol-entry within GOT, with PLT handling.
4146 ENUM
4147   BFD_RELOC_CRIS_16_GOTPLT
4148 ENUMDOC
4149   16-bit offset to symbol-entry within GOT, with PLT handling.
4150 ENUM
4151   BFD_RELOC_CRIS_32_GOTREL
4152 ENUMDOC
4153   32-bit offset to symbol, relative to GOT.
4154 ENUM
4155   BFD_RELOC_CRIS_32_PLT_GOTREL
4156 ENUMDOC
4157   32-bit offset to symbol with PLT entry, relative to GOT.
4158 ENUM
4159   BFD_RELOC_CRIS_32_PLT_PCREL
4160 ENUMDOC
4161   32-bit offset to symbol with PLT entry, relative to this relocation.
4162
4163 ENUM
4164   BFD_RELOC_860_COPY
4165 ENUMX
4166   BFD_RELOC_860_GLOB_DAT
4167 ENUMX
4168   BFD_RELOC_860_JUMP_SLOT
4169 ENUMX
4170   BFD_RELOC_860_RELATIVE
4171 ENUMX
4172   BFD_RELOC_860_PC26
4173 ENUMX
4174   BFD_RELOC_860_PLT26
4175 ENUMX
4176   BFD_RELOC_860_PC16
4177 ENUMX
4178   BFD_RELOC_860_LOW0
4179 ENUMX
4180   BFD_RELOC_860_SPLIT0
4181 ENUMX
4182   BFD_RELOC_860_LOW1
4183 ENUMX
4184   BFD_RELOC_860_SPLIT1
4185 ENUMX
4186   BFD_RELOC_860_LOW2
4187 ENUMX
4188   BFD_RELOC_860_SPLIT2
4189 ENUMX
4190   BFD_RELOC_860_LOW3
4191 ENUMX
4192   BFD_RELOC_860_LOGOT0
4193 ENUMX
4194   BFD_RELOC_860_SPGOT0
4195 ENUMX
4196   BFD_RELOC_860_LOGOT1
4197 ENUMX
4198   BFD_RELOC_860_SPGOT1
4199 ENUMX
4200   BFD_RELOC_860_LOGOTOFF0
4201 ENUMX
4202   BFD_RELOC_860_SPGOTOFF0
4203 ENUMX
4204   BFD_RELOC_860_LOGOTOFF1
4205 ENUMX
4206   BFD_RELOC_860_SPGOTOFF1
4207 ENUMX
4208   BFD_RELOC_860_LOGOTOFF2
4209 ENUMX
4210   BFD_RELOC_860_LOGOTOFF3
4211 ENUMX
4212   BFD_RELOC_860_LOPC
4213 ENUMX
4214   BFD_RELOC_860_HIGHADJ
4215 ENUMX
4216   BFD_RELOC_860_HAGOT
4217 ENUMX
4218   BFD_RELOC_860_HAGOTOFF
4219 ENUMX
4220   BFD_RELOC_860_HAPC
4221 ENUMX
4222   BFD_RELOC_860_HIGH
4223 ENUMX
4224   BFD_RELOC_860_HIGOT
4225 ENUMX
4226   BFD_RELOC_860_HIGOTOFF
4227 ENUMDOC
4228   Intel i860 Relocations.
4229
4230 ENUM
4231   BFD_RELOC_OPENRISC_ABS_26
4232 ENUMX
4233   BFD_RELOC_OPENRISC_REL_26
4234 ENUMDOC
4235   OpenRISC Relocations.
4236
4237 ENUM
4238   BFD_RELOC_H8_DIR16A8
4239 ENUMX
4240   BFD_RELOC_H8_DIR16R8
4241 ENUMX
4242   BFD_RELOC_H8_DIR24A8
4243 ENUMX
4244   BFD_RELOC_H8_DIR24R8
4245 ENUMX
4246   BFD_RELOC_H8_DIR32A16
4247 ENUMDOC
4248   H8 elf Relocations.
4249
4250 ENUM
4251   BFD_RELOC_XSTORMY16_REL_12
4252 ENUMX
4253   BFD_RELOC_XSTORMY16_12
4254 ENUMX
4255   BFD_RELOC_XSTORMY16_24
4256 ENUMX
4257   BFD_RELOC_XSTORMY16_FPTR16
4258 ENUMDOC
4259   Sony Xstormy16 Relocations.
4260
4261 ENUM
4262   BFD_RELOC_VAX_GLOB_DAT
4263 ENUMX
4264   BFD_RELOC_VAX_JMP_SLOT
4265 ENUMX
4266   BFD_RELOC_VAX_RELATIVE
4267 ENUMDOC
4268   Relocations used by VAX ELF.
4269
4270 ENUM
4271   BFD_RELOC_MS1_PC16
4272 ENUMDOC
4273   Morpho MS1 - 16 bit immediate relocation.
4274 ENUM
4275   BFD_RELOC_MS1_HI16
4276 ENUMDOC
4277   Morpho MS1 - Hi 16 bits of an address.
4278 ENUM
4279   BFD_RELOC_MS1_LO16
4280 ENUMDOC
4281   Morpho MS1 - Low 16 bits of an address.
4282 ENUM
4283   BFD_RELOC_MS1_GNU_VTINHERIT
4284 ENUMDOC
4285   Morpho MS1 - Used to tell the linker which vtable entries are used.
4286 ENUM
4287   BFD_RELOC_MS1_GNU_VTENTRY
4288 ENUMDOC
4289   Morpho MS1 - Used to tell the linker which vtable entries are used.
4290
4291 ENUM
4292   BFD_RELOC_MSP430_10_PCREL
4293 ENUMX
4294   BFD_RELOC_MSP430_16_PCREL
4295 ENUMX
4296   BFD_RELOC_MSP430_16
4297 ENUMX
4298   BFD_RELOC_MSP430_16_PCREL_BYTE
4299 ENUMX
4300   BFD_RELOC_MSP430_16_BYTE
4301 ENUMX
4302   BFD_RELOC_MSP430_2X_PCREL
4303 ENUMX
4304   BFD_RELOC_MSP430_RL_PCREL
4305 ENUMDOC
4306   msp430 specific relocation codes
4307
4308 ENUM
4309   BFD_RELOC_IQ2000_OFFSET_16
4310 ENUMX
4311   BFD_RELOC_IQ2000_OFFSET_21
4312 ENUMX
4313   BFD_RELOC_IQ2000_UHI16
4314 ENUMDOC
4315   IQ2000 Relocations.
4316
4317 ENUM
4318   BFD_RELOC_XTENSA_RTLD
4319 ENUMDOC
4320   Special Xtensa relocation used only by PLT entries in ELF shared
4321   objects to indicate that the runtime linker should set the value
4322   to one of its own internal functions or data structures.
4323 ENUM
4324   BFD_RELOC_XTENSA_GLOB_DAT
4325 ENUMX
4326   BFD_RELOC_XTENSA_JMP_SLOT
4327 ENUMX
4328   BFD_RELOC_XTENSA_RELATIVE
4329 ENUMDOC
4330   Xtensa relocations for ELF shared objects.
4331 ENUM
4332   BFD_RELOC_XTENSA_PLT
4333 ENUMDOC
4334   Xtensa relocation used in ELF object files for symbols that may require
4335   PLT entries.  Otherwise, this is just a generic 32-bit relocation.
4336 ENUM
4337   BFD_RELOC_XTENSA_DIFF8
4338 ENUMX
4339   BFD_RELOC_XTENSA_DIFF16
4340 ENUMX
4341   BFD_RELOC_XTENSA_DIFF32
4342 ENUMDOC
4343   Xtensa relocations to mark the difference of two local symbols.
4344   These are only needed to support linker relaxation and can be ignored
4345   when not relaxing.  The field is set to the value of the difference
4346   assuming no relaxation.  The relocation encodes the position of the
4347   first symbol so the linker can determine whether to adjust the field
4348   value.
4349 ENUM
4350   BFD_RELOC_XTENSA_SLOT0_OP
4351 ENUMX
4352   BFD_RELOC_XTENSA_SLOT1_OP
4353 ENUMX
4354   BFD_RELOC_XTENSA_SLOT2_OP
4355 ENUMX
4356   BFD_RELOC_XTENSA_SLOT3_OP
4357 ENUMX
4358   BFD_RELOC_XTENSA_SLOT4_OP
4359 ENUMX
4360   BFD_RELOC_XTENSA_SLOT5_OP
4361 ENUMX
4362   BFD_RELOC_XTENSA_SLOT6_OP
4363 ENUMX
4364   BFD_RELOC_XTENSA_SLOT7_OP
4365 ENUMX
4366   BFD_RELOC_XTENSA_SLOT8_OP
4367 ENUMX
4368   BFD_RELOC_XTENSA_SLOT9_OP
4369 ENUMX
4370   BFD_RELOC_XTENSA_SLOT10_OP
4371 ENUMX
4372   BFD_RELOC_XTENSA_SLOT11_OP
4373 ENUMX
4374   BFD_RELOC_XTENSA_SLOT12_OP
4375 ENUMX
4376   BFD_RELOC_XTENSA_SLOT13_OP
4377 ENUMX
4378   BFD_RELOC_XTENSA_SLOT14_OP
4379 ENUMDOC
4380   Generic Xtensa relocations for instruction operands.  Only the slot
4381   number is encoded in the relocation.  The relocation applies to the
4382   last PC-relative immediate operand, or if there are no PC-relative
4383   immediates, to the last immediate operand.
4384 ENUM
4385   BFD_RELOC_XTENSA_SLOT0_ALT
4386 ENUMX
4387   BFD_RELOC_XTENSA_SLOT1_ALT
4388 ENUMX
4389   BFD_RELOC_XTENSA_SLOT2_ALT
4390 ENUMX
4391   BFD_RELOC_XTENSA_SLOT3_ALT
4392 ENUMX
4393   BFD_RELOC_XTENSA_SLOT4_ALT
4394 ENUMX
4395   BFD_RELOC_XTENSA_SLOT5_ALT
4396 ENUMX
4397   BFD_RELOC_XTENSA_SLOT6_ALT
4398 ENUMX
4399   BFD_RELOC_XTENSA_SLOT7_ALT
4400 ENUMX
4401   BFD_RELOC_XTENSA_SLOT8_ALT
4402 ENUMX
4403   BFD_RELOC_XTENSA_SLOT9_ALT
4404 ENUMX
4405   BFD_RELOC_XTENSA_SLOT10_ALT
4406 ENUMX
4407   BFD_RELOC_XTENSA_SLOT11_ALT
4408 ENUMX
4409   BFD_RELOC_XTENSA_SLOT12_ALT
4410 ENUMX
4411   BFD_RELOC_XTENSA_SLOT13_ALT
4412 ENUMX
4413   BFD_RELOC_XTENSA_SLOT14_ALT
4414 ENUMDOC
4415   Alternate Xtensa relocations.  Only the slot is encoded in the
4416   relocation.  The meaning of these relocations is opcode-specific.
4417 ENUM
4418   BFD_RELOC_XTENSA_OP0
4419 ENUMX
4420   BFD_RELOC_XTENSA_OP1
4421 ENUMX
4422   BFD_RELOC_XTENSA_OP2
4423 ENUMDOC
4424   Xtensa relocations for backward compatibility.  These have all been
4425   replaced by BFD_RELOC_XTENSA_SLOT0_OP.
4426 ENUM
4427   BFD_RELOC_XTENSA_ASM_EXPAND
4428 ENUMDOC
4429   Xtensa relocation to mark that the assembler expanded the
4430   instructions from an original target.  The expansion size is
4431   encoded in the reloc size.
4432 ENUM
4433   BFD_RELOC_XTENSA_ASM_SIMPLIFY
4434 ENUMDOC
4435   Xtensa relocation to mark that the linker should simplify
4436   assembler-expanded instructions.  This is commonly used
4437   internally by the linker after analysis of a
4438   BFD_RELOC_XTENSA_ASM_EXPAND.
4439
4440 ENUM
4441   BFD_RELOC_Z8K_DISP7
4442 ENUMDOC
4443   DJNZ offset.
4444 ENUM
4445   BFD_RELOC_Z8K_CALLR
4446 ENUMDOC
4447   CALR offset.
4448 ENUM
4449   BFD_RELOC_Z8K_IMM4L
4450 ENUMDOC
4451   4 bit value.
4452
4453 ENDSENUM
4454   BFD_RELOC_UNUSED
4455 CODE_FRAGMENT
4456 .
4457 .typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
4458 */
4459
4460 /*
4461 FUNCTION
4462         bfd_reloc_type_lookup
4463
4464 SYNOPSIS
4465         reloc_howto_type *bfd_reloc_type_lookup
4466           (bfd *abfd, bfd_reloc_code_real_type code);
4467
4468 DESCRIPTION
4469         Return a pointer to a howto structure which, when
4470         invoked, will perform the relocation @var{code} on data from the
4471         architecture noted.
4472
4473 */
4474
4475 reloc_howto_type *
4476 bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
4477 {
4478   return BFD_SEND (abfd, reloc_type_lookup, (abfd, code));
4479 }
4480
4481 static reloc_howto_type bfd_howto_32 =
4482 HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE);
4483
4484 /*
4485 INTERNAL_FUNCTION
4486         bfd_default_reloc_type_lookup
4487
4488 SYNOPSIS
4489         reloc_howto_type *bfd_default_reloc_type_lookup
4490           (bfd *abfd, bfd_reloc_code_real_type  code);
4491
4492 DESCRIPTION
4493         Provides a default relocation lookup routine for any architecture.
4494
4495 */
4496
4497 reloc_howto_type *
4498 bfd_default_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
4499 {
4500   switch (code)
4501     {
4502     case BFD_RELOC_CTOR:
4503       /* The type of reloc used in a ctor, which will be as wide as the
4504          address - so either a 64, 32, or 16 bitter.  */
4505       switch (bfd_get_arch_info (abfd)->bits_per_address)
4506         {
4507         case 64:
4508           BFD_FAIL ();
4509         case 32:
4510           return &bfd_howto_32;
4511         case 16:
4512           BFD_FAIL ();
4513         default:
4514           BFD_FAIL ();
4515         }
4516     default:
4517       BFD_FAIL ();
4518     }
4519   return NULL;
4520 }
4521
4522 /*
4523 FUNCTION
4524         bfd_get_reloc_code_name
4525
4526 SYNOPSIS
4527         const char *bfd_get_reloc_code_name (bfd_reloc_code_real_type code);
4528
4529 DESCRIPTION
4530         Provides a printable name for the supplied relocation code.
4531         Useful mainly for printing error messages.
4532 */
4533
4534 const char *
4535 bfd_get_reloc_code_name (bfd_reloc_code_real_type code)
4536 {
4537   if (code > BFD_RELOC_UNUSED)
4538     return 0;
4539   return bfd_reloc_code_real_names[code];
4540 }
4541
4542 /*
4543 INTERNAL_FUNCTION
4544         bfd_generic_relax_section
4545
4546 SYNOPSIS
4547         bfd_boolean bfd_generic_relax_section
4548           (bfd *abfd,
4549            asection *section,
4550            struct bfd_link_info *,
4551            bfd_boolean *);
4552
4553 DESCRIPTION
4554         Provides default handling for relaxing for back ends which
4555         don't do relaxing.
4556 */
4557
4558 bfd_boolean
4559 bfd_generic_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
4560                            asection *section ATTRIBUTE_UNUSED,
4561                            struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
4562                            bfd_boolean *again)
4563 {
4564   *again = FALSE;
4565   return TRUE;
4566 }
4567
4568 /*
4569 INTERNAL_FUNCTION
4570         bfd_generic_gc_sections
4571
4572 SYNOPSIS
4573         bfd_boolean bfd_generic_gc_sections
4574           (bfd *, struct bfd_link_info *);
4575
4576 DESCRIPTION
4577         Provides default handling for relaxing for back ends which
4578         don't do section gc -- i.e., does nothing.
4579 */
4580
4581 bfd_boolean
4582 bfd_generic_gc_sections (bfd *abfd ATTRIBUTE_UNUSED,
4583                          struct bfd_link_info *info ATTRIBUTE_UNUSED)
4584 {
4585   return TRUE;
4586 }
4587
4588 /*
4589 INTERNAL_FUNCTION
4590         bfd_generic_merge_sections
4591
4592 SYNOPSIS
4593         bfd_boolean bfd_generic_merge_sections
4594           (bfd *, struct bfd_link_info *);
4595
4596 DESCRIPTION
4597         Provides default handling for SEC_MERGE section merging for back ends
4598         which don't have SEC_MERGE support -- i.e., does nothing.
4599 */
4600
4601 bfd_boolean
4602 bfd_generic_merge_sections (bfd *abfd ATTRIBUTE_UNUSED,
4603                             struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
4604 {
4605   return TRUE;
4606 }
4607
4608 /*
4609 INTERNAL_FUNCTION
4610         bfd_generic_get_relocated_section_contents
4611
4612 SYNOPSIS
4613         bfd_byte *bfd_generic_get_relocated_section_contents
4614           (bfd *abfd,
4615            struct bfd_link_info *link_info,
4616            struct bfd_link_order *link_order,
4617            bfd_byte *data,
4618            bfd_boolean relocatable,
4619            asymbol **symbols);
4620
4621 DESCRIPTION
4622         Provides default handling of relocation effort for back ends
4623         which can't be bothered to do it efficiently.
4624
4625 */
4626
4627 bfd_byte *
4628 bfd_generic_get_relocated_section_contents (bfd *abfd,
4629                                             struct bfd_link_info *link_info,
4630                                             struct bfd_link_order *link_order,
4631                                             bfd_byte *data,
4632                                             bfd_boolean relocatable,
4633                                             asymbol **symbols)
4634 {
4635   /* Get enough memory to hold the stuff.  */
4636   bfd *input_bfd = link_order->u.indirect.section->owner;
4637   asection *input_section = link_order->u.indirect.section;
4638
4639   long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
4640   arelent **reloc_vector = NULL;
4641   long reloc_count;
4642   bfd_size_type sz;
4643
4644   if (reloc_size < 0)
4645     goto error_return;
4646
4647   reloc_vector = bfd_malloc (reloc_size);
4648   if (reloc_vector == NULL && reloc_size != 0)
4649     goto error_return;
4650
4651   /* Read in the section.  */
4652   sz = input_section->rawsize ? input_section->rawsize : input_section->size;
4653   if (!bfd_get_section_contents (input_bfd, input_section, data, 0, sz))
4654     goto error_return;
4655
4656   reloc_count = bfd_canonicalize_reloc (input_bfd,
4657                                         input_section,
4658                                         reloc_vector,
4659                                         symbols);
4660   if (reloc_count < 0)
4661     goto error_return;
4662
4663   if (reloc_count > 0)
4664     {
4665       arelent **parent;
4666       for (parent = reloc_vector; *parent != NULL; parent++)
4667         {
4668           char *error_message = NULL;
4669           bfd_reloc_status_type r =
4670             bfd_perform_relocation (input_bfd,
4671                                     *parent,
4672                                     data,
4673                                     input_section,
4674                                     relocatable ? abfd : NULL,
4675                                     &error_message);
4676
4677           if (relocatable)
4678             {
4679               asection *os = input_section->output_section;
4680
4681               /* A partial link, so keep the relocs.  */
4682               os->orelocation[os->reloc_count] = *parent;
4683               os->reloc_count++;
4684             }
4685
4686           if (r != bfd_reloc_ok)
4687             {
4688               switch (r)
4689                 {
4690                 case bfd_reloc_undefined:
4691                   if (!((*link_info->callbacks->undefined_symbol)
4692                         (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4693                          input_bfd, input_section, (*parent)->address,
4694                          TRUE)))
4695                     goto error_return;
4696                   break;
4697                 case bfd_reloc_dangerous:
4698                   BFD_ASSERT (error_message != NULL);
4699                   if (!((*link_info->callbacks->reloc_dangerous)
4700                         (link_info, error_message, input_bfd, input_section,
4701                          (*parent)->address)))
4702                     goto error_return;
4703                   break;
4704                 case bfd_reloc_overflow:
4705                   if (!((*link_info->callbacks->reloc_overflow)
4706                         (link_info, NULL,
4707                          bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4708                          (*parent)->howto->name, (*parent)->addend,
4709                          input_bfd, input_section, (*parent)->address)))
4710                     goto error_return;
4711                   break;
4712                 case bfd_reloc_outofrange:
4713                 default:
4714                   abort ();
4715                   break;
4716                 }
4717
4718             }
4719         }
4720     }
4721   if (reloc_vector != NULL)
4722     free (reloc_vector);
4723   return data;
4724
4725 error_return:
4726   if (reloc_vector != NULL)
4727     free (reloc_vector);
4728   return NULL;
4729 }