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