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
   4    Free Software Foundation, Inc.
   5    Written by Cygnus Support.
   6
   7    This file is part of BFD, the Binary File Descriptor library.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  22
  23 /*
  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 symbol_cache_entry **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
 126         the pointer into the table returned by the back end's
 127         <<get_symtab>> action. @xref{Symbols}. The symbol is referenced
 128         through a pointer to a pointer so that tools like the linker
 129         can fix up all the symbols of the same name by modifying only
 130         one pointer. The relocation routine looks in the symbol and
 131         uses the base of the section the symbol is attached to and the
 132         value of the symbol as the initial relocation offset. If the
 133         symbol pointer is zero, then the section provided is looked up.
 134
 135         o <<address>>
 136
 137         The <<address>> field gives the offset in bytes from the base of
 138         the section data which owns the relocation record to the first
 139         byte of relocatable information. The actual data relocated
 140         will be relative to this point; for example, a relocation
 141         type which modifies the bottom two bytes of a four byte word
 142         would not touch the first byte pointed to in a big endian
 143         world.
 144
 145         o <<addend>>
 146
 147         The <<addend>> is a value provided by the back end to be added (!)
 148         to the relocation offset. Its interpretation is dependent upon
 149         the howto. For example, on the 68k the code:
 150
 151 |        char foo[];
 152 |        main()
 153 |                {
 154 |                return foo[0x12345678];
 155 |                }
 156
 157         Could be compiled into:
 158
 159 |        linkw fp,#-4
 160 |        moveb @@#12345678,d0
 161 |        extbl d0
 162 |        unlk fp
 163 |        rts
 164
 165         This could create a reloc pointing to <<foo>>, but leave the
 166         offset in the data, something like:
 167
 168 |RELOCATION RECORDS FOR [.text]:
 169 |offset   type      value
 170 |00000006 32        _foo
 171 |
 172 |00000000 4e56 fffc          ; linkw fp,#-4
 173 |00000004 1039 1234 5678     ; moveb @@#12345678,d0
 174 |0000000a 49c0               ; extbl d0
 175 |0000000c 4e5e               ; unlk fp
 176 |0000000e 4e75               ; rts
 177
 178         Using coff and an 88k, some instructions don't have enough
 179         space in them to represent the full address range, and
 180         pointers have to be loaded in two parts. So you'd get something like:
 181
 182 |        or.u     r13,r0,hi16(_foo+0x12345678)
 183 |        ld.b     r2,r13,lo16(_foo+0x12345678)
 184 |        jmp      r1
 185
 186         This should create two relocs, both pointing to <<_foo>>, and with
 187         0x12340000 in their addend field. The data would consist of:
 188
 189 |RELOCATION RECORDS FOR [.text]:
 190 |offset   type      value
 191 |00000002 HVRT16    _foo+0x12340000
 192 |00000006 LVRT16    _foo+0x12340000
 193 |
 194 |00000000 5da05678           ; or.u r13,r0,0x5678
 195 |00000004 1c4d5678           ; ld.b r2,r13,0x5678
 196 |00000008 f400c001           ; jmp r1
 197
 198         The relocation routine digs out the value from the data, adds
 199         it to the addend to get the original offset, and then adds the
 200         value of <<_foo>>. Note that all 32 bits have to be kept around
 201         somewhere, to cope with carry from bit 15 to bit 16.
 202
 203         One further example is the sparc and the a.out format. The
 204         sparc has a similar problem to the 88k, in that some
 205         instructions don't have room for an entire offset, but on the
 206         sparc the parts are created in odd sized lumps. The designers of
 207         the a.out format chose to not use the data within the section
 208         for storing part of the offset; all the offset is kept within
 209         the reloc. Anything in the data should be ignored.
 210
 211 |        save %sp,-112,%sp
 212 |        sethi %hi(_foo+0x12345678),%g2
 213 |        ldsb [%g2+%lo(_foo+0x12345678)],%i0
 214 |        ret
 215 |        restore
 216
 217         Both relocs contain a pointer to <<foo>>, and the offsets
 218         contain junk.
 219
 220 |RELOCATION RECORDS FOR [.text]:
 221 |offset   type      value
 222 |00000004 HI22      _foo+0x12345678
 223 |00000008 LO10      _foo+0x12345678
 224 |
 225 |00000000 9de3bf90     ; save %sp,-112,%sp
 226 |00000004 05000000     ; sethi %hi(_foo+0),%g2
 227 |00000008 f048a000     ; ldsb [%g2+%lo(_foo+0)],%i0
 228 |0000000c 81c7e008     ; ret
 229 |00000010 81e80000     ; restore
 230
 231         o <<howto>>
 232
 233         The <<howto>> field can be imagined as a
 234         relocation instruction. It is a pointer to a structure which
 235         contains information on what to do with all of the other
 236         information in the reloc record and data section. A back end
 237         would normally have a relocation instruction set and turn
 238         relocations into pointers to the correct structure on input -
 239         but it would be possible to create each howto field on demand.
 240
 241 */
 242
 243 /*
 244 SUBSUBSECTION
 245         <<enum complain_overflow>>
 246
 247         Indicates what sort of overflow checking should be done when
 248         performing a relocation.
 249
 250 CODE_FRAGMENT
 251 .
 252 .enum complain_overflow
 253 .{
 254 .  {* Do not complain on overflow.  *}
 255 .  complain_overflow_dont,
 256 .
 257 .  {* Complain if the bitfield overflows, whether it is considered
 258 .     as signed or unsigned.  *}
 259 .  complain_overflow_bitfield,
 260 .
 261 .  {* Complain if the value overflows when considered as signed
 262 .     number.  *}
 263 .  complain_overflow_signed,
 264 .
 265 .  {* Complain if the value overflows when considered as an
 266 .     unsigned number.  *}
 267 .  complain_overflow_unsigned
 268 .};
 269
 270 */
 271
 272 /*
 273 SUBSUBSECTION
 274         <<reloc_howto_type>>
 275
 276         The <<reloc_howto_type>> is a structure which contains all the
 277         information that libbfd needs to know to tie up a back end's data.
 278
 279 CODE_FRAGMENT
 280 .struct symbol_cache_entry;             {* Forward declaration.  *}
 281 .
 282 .struct reloc_howto_struct
 283 .{
 284 .  {*  The type field has mainly a documentary use - the back end can
 285 .      do what it wants with it, though normally the back end's
 286 .      external idea of what a reloc number is stored
 287 .      in this field.  For example, a PC relative word relocation
 288 .      in a coff environment has the type 023 - because that's
 289 .      what the outside world calls a R_PCRWORD reloc.  *}
 290 .  unsigned int type;
 291 .
 292 .  {*  The value the final relocation is shifted right by.  This drops
 293 .      unwanted data from the relocation.  *}
 294 .  unsigned int rightshift;
 295 .
 296 .  {*  The size of the item to be relocated.  This is *not* a
 297 .      power-of-two measure.  To get the number of bytes operated
 298 .      on by a type of relocation, use bfd_get_reloc_size.  *}
 299 .  int size;
 300 .
 301 .  {*  The number of bits in the item to be relocated.  This is used
 302 .      when doing overflow checking.  *}
 303 .  unsigned int bitsize;
 304 .
 305 .  {*  Notes that the relocation is relative to the location in the
 306 .      data section of the addend.  The relocation function will
 307 .      subtract from the relocation value the address of the location
 308 .      being relocated.  *}
 309 .  bfd_boolean pc_relative;
 310 .
 311 .  {*  The bit position of the reloc value in the destination.
 312 .      The relocated value is left shifted by this amount.  *}
 313 .  unsigned int bitpos;
 314 .
 315 .  {* What type of overflow error should be checked for when
 316 .     relocating.  *}
 317 .  enum complain_overflow complain_on_overflow;
 318 .
 319 .  {* If this field is non null, then the supplied function is
 320 .     called rather than the normal function.  This allows really
 321 .     strange relocation methods to be accomodated (e.g., i960 callj
 322 .     instructions).  *}
 323 .  bfd_reloc_status_type (*special_function)
 324 .    (bfd *, arelent *, struct symbol_cache_entry *, void *, asection *,
 325 .     bfd *, char **);
 326 .
 327 .  {* The textual name of the relocation type.  *}
 328 .  char *name;
 329 .
 330 .  {* Some formats record a relocation addend in the section contents
 331 .     rather than with the relocation.  For ELF formats this is the
 332 .     distinction between USE_REL and USE_RELA (though the code checks
 333 .     for USE_REL == 1/0).  The value of this field is TRUE if the
 334 .     addend is recorded with the section contents; when performing a
 335 .     partial link (ld -r) the section contents (the data) will be
 336 .     modified.  The value of this field is FALSE if addends are
 337 .     recorded with the relocation (in arelent.addend); when performing
 338 .     a partial link the relocation will be modified.
 339 .     All relocations for all ELF USE_RELA targets should set this field
 340 .     to FALSE (values of TRUE should be looked on with suspicion).
 341 .     However, the converse is not true: not all relocations of all ELF
 342 .     USE_REL targets set this field to TRUE.  Why this is so is peculiar
 343 .     to each particular target.  For relocs that aren't used in partial
 344 .     links (e.g. GOT stuff) it doesn't matter what this is set to.  *}
 345 .  bfd_boolean partial_inplace;
 346 .
 347 .  {* src_mask selects the part of the instruction (or data) to be used
 348 .     in the relocation sum.  If the target relocations don't have an
 349 .     addend in the reloc, eg. ELF USE_REL, src_mask will normally equal
 350 .     dst_mask to extract the addend from the section contents.  If
 351 .     relocations do have an addend in the reloc, eg. ELF USE_RELA, this
 352 .     field should be zero.  Non-zero values for ELF USE_RELA targets are
 353 .     bogus as in those cases the value in the dst_mask part of the
 354 .     section contents should be treated as garbage.  *}
 355 .  bfd_vma src_mask;
 356 .
 357 .  {* dst_mask selects which parts of the instruction (or data) are
 358 .     replaced with a relocated value.  *}
 359 .  bfd_vma dst_mask;
 360 .
 361 .  {* When some formats create PC relative instructions, they leave
 362 .     the value of the pc of the place being relocated in the offset
 363 .     slot of the instruction, so that a PC relative relocation can
 364 .     be made just by adding in an ordinary offset (e.g., sun3 a.out).
 365 .     Some formats leave the displacement part of an instruction
 366 .     empty (e.g., m88k bcs); this flag signals the fact.  *}
 367 .  bfd_boolean pcrel_offset;
 368 .};
 369 .
 370 */
 371
 372 /*
 373 FUNCTION
 374         The HOWTO Macro
 375
 376 DESCRIPTION
 377         The HOWTO define is horrible and will go away.
 378
 379 .#define HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
 380 .  { (unsigned) C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC }
 381
 382 DESCRIPTION
 383         And will be replaced with the totally magic way. But for the
 384         moment, we are compatible, so do it this way.
 385
 386 .#define NEWHOWTO(FUNCTION, NAME, SIZE, REL, IN) \
 387 .  HOWTO (0, 0, SIZE, 0, REL, 0, complain_overflow_dont, FUNCTION, \
 388 .         NAME, FALSE, 0, 0, IN)
 389 .
 390
 391 DESCRIPTION
 392         This is used to fill in an empty howto entry in an array.
 393
 394 .#define EMPTY_HOWTO(C) \
 395 .  HOWTO ((C), 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, \
 396 .         NULL, FALSE, 0, 0, FALSE)
 397 .
 398
 399 DESCRIPTION
 400         Helper routine to turn a symbol into a relocation value.
 401
 402 .#define HOWTO_PREPARE(relocation, symbol)               \
 403 .  {                                                     \
 404 .    if (symbol != NULL)                                 \
 405 .      {                                                 \
 406 .        if (bfd_is_com_section (symbol->section))       \
 407 .          {                                             \
 408 .            relocation = 0;                             \
 409 .          }                                             \
 410 .        else                                            \
 411 .          {                                             \
 412 .            relocation = symbol->value;                 \
 413 .          }                                             \
 414 .      }                                                 \
 415 .  }
 416 .
 417 */
 418
 419 /*
 420 FUNCTION
 421         bfd_get_reloc_size
 422
 423 SYNOPSIS
 424         unsigned int bfd_get_reloc_size (reloc_howto_type *);
 425
 426 DESCRIPTION
 427         For a reloc_howto_type that operates on a fixed number of bytes,
 428         this returns the number of bytes operated on.
 429  */
 430
 431 unsigned int
 432 bfd_get_reloc_size (reloc_howto_type *howto)
 433 {
 434   switch (howto->size)
 435     {
 436     case 0: return 1;
 437     case 1: return 2;
 438     case 2: return 4;
 439     case 3: return 0;
 440     case 4: return 8;
 441     case 8: return 16;
 442     case -2: return 4;
 443     default: abort ();
 444     }
 445 }
 446
 447 /*
 448 TYPEDEF
 449         arelent_chain
 450
 451 DESCRIPTION
 452
 453         How relocs are tied together in an <<asection>>:
 454
 455 .typedef struct relent_chain
 456 .{
 457 .  arelent relent;
 458 .  struct relent_chain *next;
 459 .}
 460 .arelent_chain;
 461 .
 462 */
 463
 464 /* N_ONES produces N one bits, without overflowing machine arithmetic.  */
 465 #define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1)
 466
 467 /*
 468 FUNCTION
 469         bfd_check_overflow
 470
 471 SYNOPSIS
 472         bfd_reloc_status_type bfd_check_overflow
 473           (enum complain_overflow how,
 474            unsigned int bitsize,
 475            unsigned int rightshift,
 476            unsigned int addrsize,
 477            bfd_vma relocation);
 478
 479 DESCRIPTION
 480         Perform overflow checking on @var{relocation} which has
 481         @var{bitsize} significant bits and will be shifted right by
 482         @var{rightshift} bits, on a machine with addresses containing
 483         @var{addrsize} significant bits.  The result is either of
 484         @code{bfd_reloc_ok} or @code{bfd_reloc_overflow}.
 485
 486 */
 487
 488 bfd_reloc_status_type
 489 bfd_check_overflow (enum complain_overflow how,
 490                     unsigned int bitsize,
 491                     unsigned int rightshift,
 492                     unsigned int addrsize,
 493                     bfd_vma relocation)
 494 {
 495   bfd_vma fieldmask, addrmask, signmask, ss, a;
 496   bfd_reloc_status_type flag = bfd_reloc_ok;
 497
 498   a = relocation;
 499
 500   /* Note: BITSIZE should always be <= ADDRSIZE, but in case it's not,
 501      we'll be permissive: extra bits in the field mask will
 502      automatically extend the address mask for purposes of the
 503      overflow check.  */
 504   fieldmask = N_ONES (bitsize);
 505   addrmask = N_ONES (addrsize) | fieldmask;
 506
 507   switch (how)
 508     {
 509     case complain_overflow_dont:
 510       break;
 511
 512     case complain_overflow_signed:
 513       /* If any sign bits are set, all sign bits must be set.  That
 514          is, A must be a valid negative address after shifting.  */
 515       a = (a & addrmask) >> rightshift;
 516       signmask = ~ (fieldmask >> 1);
 517       ss = a & signmask;
 518       if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
 519         flag = bfd_reloc_overflow;
 520       break;
 521
 522     case complain_overflow_unsigned:
 523       /* We have an overflow if the address does not fit in the field.  */
 524       a = (a & addrmask) >> rightshift;
 525       if ((a & ~ fieldmask) != 0)
 526         flag = bfd_reloc_overflow;
 527       break;
 528
 529     case complain_overflow_bitfield:
 530       /* Bitfields are sometimes signed, sometimes unsigned.  We
 531          explicitly allow an address wrap too, which means a bitfield
 532          of n bits is allowed to store -2**n to 2**n-1.  Thus overflow
 533          if the value has some, but not all, bits set outside the
 534          field.  */
 535       a >>= rightshift;
 536       ss = a & ~ fieldmask;
 537       if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & ~ fieldmask))
 538         flag = bfd_reloc_overflow;
 539       break;
 540
 541     default:
 542       abort ();
 543     }
 544
 545   return flag;
 546 }
 547
 548 /*
 549 FUNCTION
 550         bfd_perform_relocation
 551
 552 SYNOPSIS
 553         bfd_reloc_status_type bfd_perform_relocation
 554           (bfd *abfd,
 555            arelent *reloc_entry,
 556            void *data,
 557            asection *input_section,
 558            bfd *output_bfd,
 559            char **error_message);
 560
 561 DESCRIPTION
 562         If @var{output_bfd} is supplied to this function, the
 563         generated image will be relocatable; the relocations are
 564         copied to the output file after they have been changed to
 565         reflect the new state of the world. There are two ways of
 566         reflecting the results of partial linkage in an output file:
 567         by modifying the output data in place, and by modifying the
 568         relocation record.  Some native formats (e.g., basic a.out and
 569         basic coff) have no way of specifying an addend in the
 570         relocation type, so the addend has to go in the output data.
 571         This is no big deal since in these formats the output data
 572         slot will always be big enough for the addend. Complex reloc
 573         types with addends were invented to solve just this problem.
 574         The @var{error_message} argument is set to an error message if
 575         this return @code{bfd_reloc_dangerous}.
 576
 577 */
 578
 579 bfd_reloc_status_type
 580 bfd_perform_relocation (bfd *abfd,
 581                         arelent *reloc_entry,
 582                         void *data,
 583                         asection *input_section,
 584                         bfd *output_bfd,
 585                         char **error_message)
 586 {
 587   bfd_vma relocation;
 588   bfd_reloc_status_type flag = bfd_reloc_ok;
 589   bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
 590   bfd_vma output_base = 0;
 591   reloc_howto_type *howto = reloc_entry->howto;
 592   asection *reloc_target_output_section;
 593   asymbol *symbol;
 594
 595   symbol = *(reloc_entry->sym_ptr_ptr);
 596   if (bfd_is_abs_section (symbol->section)
 597       && output_bfd != NULL)
 598     {
 599       reloc_entry->address += input_section->output_offset;
 600       return bfd_reloc_ok;
 601     }
 602
 603   /* If we are not producing relocatable output, return an error if
 604      the symbol is not defined.  An undefined weak symbol is
 605      considered to have a value of zero (SVR4 ABI, p. 4-27).  */
 606   if (bfd_is_und_section (symbol->section)
 607       && (symbol->flags & BSF_WEAK) == 0
 608       && output_bfd == NULL)
 609     flag = bfd_reloc_undefined;
 610
 611   /* If there is a function supplied to handle this relocation type,
 612      call it.  It'll return `bfd_reloc_continue' if further processing
 613      can be done.  */
 614   if (howto->special_function)
 615     {
 616       bfd_reloc_status_type cont;
 617       cont = howto->special_function (abfd, reloc_entry, symbol, data,
 618                                       input_section, output_bfd,
 619                                       error_message);
 620       if (cont != bfd_reloc_continue)
 621         return cont;
 622     }
 623
 624   /* Is the address of the relocation really within the section?  */
 625   if (reloc_entry->address > (input_section->_cooked_size
 626                               / bfd_octets_per_byte (abfd)))
 627     return bfd_reloc_outofrange;
 628
 629   /* Work out which section the relocation is targetted at and the
 630      initial relocation command value.  */
 631
 632   /* Get symbol value.  (Common symbols are special.)  */
 633   if (bfd_is_com_section (symbol->section))
 634     relocation = 0;
 635   else
 636     relocation = symbol->value;
 637
 638   reloc_target_output_section = symbol->section->output_section;
 639
 640   /* Convert input-section-relative symbol value to absolute.  */
 641   if ((output_bfd && ! howto->partial_inplace)
 642       || reloc_target_output_section == NULL)
 643     output_base = 0;
 644   else
 645     output_base = reloc_target_output_section->vma;
 646
 647   relocation += output_base + symbol->section->output_offset;
 648
 649   /* Add in supplied addend.  */
 650   relocation += reloc_entry->addend;
 651
 652   /* Here the variable relocation holds the final address of the
 653      symbol we are relocating against, plus any addend.  */
 654
 655   if (howto->pc_relative)
 656     {
 657       /* This is a PC relative relocation.  We want to set RELOCATION
 658          to the distance between the address of the symbol and the
 659          location.  RELOCATION is already the address of the symbol.
 660
 661          We start by subtracting the address of the section containing
 662          the location.
 663
 664          If pcrel_offset is set, we must further subtract the position
 665          of the location within the section.  Some targets arrange for
 666          the addend to be the negative of the position of the location
 667          within the section; for example, i386-aout does this.  For
 668          i386-aout, pcrel_offset is FALSE.  Some other targets do not
 669          include the position of the location; for example, m88kbcs,
 670          or ELF.  For those targets, pcrel_offset is TRUE.
 671
 672          If we are producing relocatable output, then we must ensure
 673          that this reloc will be correctly computed when the final
 674          relocation is done.  If pcrel_offset is FALSE we want to wind
 675          up with the negative of the location within the section,
 676          which means we must adjust the existing addend by the change
 677          in the location within the section.  If pcrel_offset is TRUE
 678          we do not want to adjust the existing addend at all.
 679
 680          FIXME: This seems logical to me, but for the case of
 681          producing relocatable output it is not what the code
 682          actually does.  I don't want to change it, because it seems
 683          far too likely that something will break.  */
 684
 685       relocation -=
 686         input_section->output_section->vma + input_section->output_offset;
 687
 688       if (howto->pcrel_offset)
 689         relocation -= reloc_entry->address;
 690     }
 691
 692   if (output_bfd != NULL)
 693     {
 694       if (! howto->partial_inplace)
 695         {
 696           /* This is a partial relocation, and we want to apply the relocation
 697              to the reloc entry rather than the raw data. Modify the reloc
 698              inplace to reflect what we now know.  */
 699           reloc_entry->addend = relocation;
 700           reloc_entry->address += input_section->output_offset;
 701           return flag;
 702         }
 703       else
 704         {
 705           /* This is a partial relocation, but inplace, so modify the
 706              reloc record a bit.
 707
 708              If we've relocated with a symbol with a section, change
 709              into a ref to the section belonging to the symbol.  */
 710
 711           reloc_entry->address += input_section->output_offset;
 712
 713           /* WTF?? */
 714           if (abfd->xvec->flavour == bfd_target_coff_flavour
 715               && strcmp (abfd->xvec->name, "coff-Intel-little") != 0
 716               && strcmp (abfd->xvec->name, "coff-Intel-big") != 0)
 717             {
 718 #if 1
 719               /* For m68k-coff, the addend was being subtracted twice during
 720                  relocation with -r.  Removing the line below this comment
 721                  fixes that problem; see PR 2953.
 722
 723 However, Ian wrote the following, regarding removing the line below,
 724 which explains why it is still enabled:  --djm
 725
 726 If you put a patch like that into BFD you need to check all the COFF
 727 linkers.  I am fairly certain that patch will break coff-i386 (e.g.,
 728 SCO); see coff_i386_reloc in coff-i386.c where I worked around the
 729 problem in a different way.  There may very well be a reason that the
 730 code works as it does.
 731
 732 Hmmm.  The first obvious point is that bfd_perform_relocation should
 733 not have any tests that depend upon the flavour.  It's seem like
 734 entirely the wrong place for such a thing.  The second obvious point
 735 is that the current code ignores the reloc addend when producing
 736 relocatable output for COFF.  That's peculiar.  In fact, I really
 737 have no idea what the point of the line you want to remove is.
 738
 739 A typical COFF reloc subtracts the old value of the symbol and adds in
 740 the new value to the location in the object file (if it's a pc
 741 relative reloc it adds the difference between the symbol value and the
 742 location).  When relocating we need to preserve that property.
 743
 744 BFD handles this by setting the addend to the negative of the old
 745 value of the symbol.  Unfortunately it handles common symbols in a
 746 non-standard way (it doesn't subtract the old value) but that's a
 747 different story (we can't change it without losing backward
 748 compatibility with old object files) (coff-i386 does subtract the old
 749 value, to be compatible with existing coff-i386 targets, like SCO).
 750
 751 So everything works fine when not producing relocatable output.  When
 752 we are producing relocatable output, logically we should do exactly
 753 what we do when not producing relocatable output.  Therefore, your
 754 patch is correct.  In fact, it should probably always just set
 755 reloc_entry->addend to 0 for all cases, since it is, in fact, going to
 756 add the value into the object file.  This won't hurt the COFF code,
 757 which doesn't use the addend; I'm not sure what it will do to other
 758 formats (the thing to check for would be whether any formats both use
 759 the addend and set partial_inplace).
 760
 761 When I wanted to make coff-i386 produce relocatable output, I ran
 762 into the problem that you are running into: I wanted to remove that
 763 line.  Rather than risk it, I made the coff-i386 relocs use a special
 764 function; it's coff_i386_reloc in coff-i386.c.  The function
 765 specifically adds the addend field into the object file, knowing that
 766 bfd_perform_relocation is not going to.  If you remove that line, then
 767 coff-i386.c will wind up adding the addend field in twice.  It's
 768 trivial to fix; it just needs to be done.
 769
 770 The problem with removing the line is just that it may break some
 771 working code.  With BFD it's hard to be sure of anything.  The right
 772 way to deal with this is simply to build and test at least all the
 773 supported COFF targets.  It should be straightforward if time and disk
 774 space consuming.  For each target:
 775     1) build the linker
 776     2) generate some executable, and link it using -r (I would
 777        probably use paranoia.o and link against newlib/libc.a, which
 778        for all the supported targets would be available in
 779        /usr/cygnus/progressive/H-host/target/lib/libc.a).
 780     3) make the change to reloc.c
 781     4) rebuild the linker
 782     5) repeat step 2
 783     6) if the resulting object files are the same, you have at least
 784        made it no worse
 785     7) if they are different you have to figure out which version is
 786        right
 787 */
 788               relocation -= reloc_entry->addend;
 789 #endif
 790               reloc_entry->addend = 0;
 791             }
 792           else
 793             {
 794               reloc_entry->addend = relocation;
 795             }
 796         }
 797     }
 798   else
 799     {
 800       reloc_entry->addend = 0;
 801     }
 802
 803   /* FIXME: This overflow checking is incomplete, because the value
 804      might have overflowed before we get here.  For a correct check we
 805      need to compute the value in a size larger than bitsize, but we
 806      can't reasonably do that for a reloc the same size as a host
 807      machine word.
 808      FIXME: We should also do overflow checking on the result after
 809      adding in the value contained in the object file.  */
 810   if (howto->complain_on_overflow != complain_overflow_dont
 811       && flag == bfd_reloc_ok)
 812     flag = bfd_check_overflow (howto->complain_on_overflow,
 813                                howto->bitsize,
 814                                howto->rightshift,
 815                                bfd_arch_bits_per_address (abfd),
 816                                relocation);
 817
 818   /* Either we are relocating all the way, or we don't want to apply
 819      the relocation to the reloc entry (probably because there isn't
 820      any room in the output format to describe addends to relocs).  */
 821
 822   /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
 823      (OSF version 1.3, compiler version 3.11).  It miscompiles the
 824      following program:
 825
 826      struct str
 827      {
 828        unsigned int i0;
 829      } s = { 0 };
 830
 831      int
 832      main ()
 833      {
 834        unsigned long x;
 835
 836        x = 0x100000000;
 837        x <<= (unsigned long) s.i0;
 838        if (x == 0)
 839          printf ("failed\n");
 840        else
 841          printf ("succeeded (%lx)\n", x);
 842      }
 843      */
 844
 845   relocation >>= (bfd_vma) howto->rightshift;
 846
 847   /* Shift everything up to where it's going to be used.  */
 848   relocation <<= (bfd_vma) howto->bitpos;
 849
 850   /* Wait for the day when all have the mask in them.  */
 851
 852   /* What we do:
 853      i instruction to be left alone
 854      o offset within instruction
 855      r relocation offset to apply
 856      S src mask
 857      D dst mask
 858      N ~dst mask
 859      A part 1
 860      B part 2
 861      R result
 862
 863      Do this:
 864      ((  i i i i i o o o o o  from bfd_get<size>
 865      and           S S S S S) to get the size offset we want
 866      +   r r r r r r r r r r) to get the final value to place
 867      and           D D D D D  to chop to right size
 868      -----------------------
 869      =             A A A A A
 870      And this:
 871      (   i i i i i o o o o o  from bfd_get<size>
 872      and N N N N N          ) get instruction
 873      -----------------------
 874      =   B B B B B
 875
 876      And then:
 877      (   B B B B B
 878      or            A A A A A)
 879      -----------------------
 880      =   R R R R R R R R R R  put into bfd_put<size>
 881      */
 882
 883 #define DOIT(x) \
 884   x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) +  relocation) & howto->dst_mask))
 885
 886   switch (howto->size)
 887     {
 888     case 0:
 889       {
 890         char x = bfd_get_8 (abfd, (char *) data + octets);
 891         DOIT (x);
 892         bfd_put_8 (abfd, x, (unsigned char *) data + octets);
 893       }
 894       break;
 895
 896     case 1:
 897       {
 898         short x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
 899         DOIT (x);
 900         bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + octets);
 901       }
 902       break;
 903     case 2:
 904       {
 905         long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
 906         DOIT (x);
 907         bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
 908       }
 909       break;
 910     case -2:
 911       {
 912         long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
 913         relocation = -relocation;
 914         DOIT (x);
 915         bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
 916       }
 917       break;
 918
 919     case -1:
 920       {
 921         long x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
 922         relocation = -relocation;
 923         DOIT (x);
 924         bfd_put_16 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
 925       }
 926       break;
 927
 928     case 3:
 929       /* Do nothing */
 930       break;
 931
 932     case 4:
 933 #ifdef BFD64
 934       {
 935         bfd_vma x = bfd_get_64 (abfd, (bfd_byte *) data + octets);
 936         DOIT (x);
 937         bfd_put_64 (abfd, x, (bfd_byte *) data + octets);
 938       }
 939 #else
 940       abort ();
 941 #endif
 942       break;
 943     default:
 944       return bfd_reloc_other;
 945     }
 946
 947   return flag;
 948 }
 949
 950 /*
 951 FUNCTION
 952         bfd_install_relocation
 953
 954 SYNOPSIS
 955         bfd_reloc_status_type bfd_install_relocation
 956           (bfd *abfd,
 957            arelent *reloc_entry,
 958            void *data, bfd_vma data_start,
 959            asection *input_section,
 960            char **error_message);
 961
 962 DESCRIPTION
 963         This looks remarkably like <<bfd_perform_relocation>>, except it
 964         does not expect that the section contents have been filled in.
 965         I.e., it's suitable for use when creating, rather than applying
 966         a relocation.
 967
 968         For now, this function should be considered reserved for the
 969         assembler.
 970 */
 971
 972 bfd_reloc_status_type
 973 bfd_install_relocation (bfd *abfd,
 974                         arelent *reloc_entry,
 975                         void *data_start,
 976                         bfd_vma data_start_offset,
 977                         asection *input_section,
 978                         char **error_message)
 979 {
 980   bfd_vma relocation;
 981   bfd_reloc_status_type flag = bfd_reloc_ok;
 982   bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
 983   bfd_vma output_base = 0;
 984   reloc_howto_type *howto = reloc_entry->howto;
 985   asection *reloc_target_output_section;
 986   asymbol *symbol;
 987   bfd_byte *data;
 988
 989   symbol = *(reloc_entry->sym_ptr_ptr);
 990   if (bfd_is_abs_section (symbol->section))
 991     {
 992       reloc_entry->address += input_section->output_offset;
 993       return bfd_reloc_ok;
 994     }
 995
 996   /* If there is a function supplied to handle this relocation type,
 997      call it.  It'll return `bfd_reloc_continue' if further processing
 998      can be done.  */
 999   if (howto->special_function)
1000     {
1001       bfd_reloc_status_type cont;
1002
1003       /* XXX - The special_function calls haven't been fixed up to deal
1004          with creating new relocations and section contents.  */
1005       cont = howto->special_function (abfd, reloc_entry, symbol,
1006                                       /* XXX - Non-portable! */
1007                                       ((bfd_byte *) data_start
1008                                        - data_start_offset),
1009                                       input_section, abfd, error_message);
1010       if (cont != bfd_reloc_continue)
1011         return cont;
1012     }
1013
1014   /* Is the address of the relocation really within the section?  */
1015   if (reloc_entry->address > (input_section->_cooked_size
1016                               / bfd_octets_per_byte (abfd)))
1017     return bfd_reloc_outofrange;
1018
1019   /* Work out which section the relocation is targetted at and the
1020      initial relocation command value.  */
1021
1022   /* Get symbol value.  (Common symbols are special.)  */
1023   if (bfd_is_com_section (symbol->section))
1024     relocation = 0;
1025   else
1026     relocation = symbol->value;
1027
1028   reloc_target_output_section = symbol->section->output_section;
1029
1030   /* Convert input-section-relative symbol value to absolute.  */
1031   if (! howto->partial_inplace)
1032     output_base = 0;
1033   else
1034     output_base = reloc_target_output_section->vma;
1035
1036   relocation += output_base + symbol->section->output_offset;
1037
1038   /* Add in supplied addend.  */
1039   relocation += reloc_entry->addend;
1040
1041   /* Here the variable relocation holds the final address of the
1042      symbol we are relocating against, plus any addend.  */
1043
1044   if (howto->pc_relative)
1045     {
1046       /* This is a PC relative relocation.  We want to set RELOCATION
1047          to the distance between the address of the symbol and the
1048          location.  RELOCATION is already the address of the symbol.
1049
1050          We start by subtracting the address of the section containing
1051          the location.
1052
1053          If pcrel_offset is set, we must further subtract the position
1054          of the location within the section.  Some targets arrange for
1055          the addend to be the negative of the position of the location
1056          within the section; for example, i386-aout does this.  For
1057          i386-aout, pcrel_offset is FALSE.  Some other targets do not
1058          include the position of the location; for example, m88kbcs,
1059          or ELF.  For those targets, pcrel_offset is TRUE.
1060
1061          If we are producing relocatable output, then we must ensure
1062          that this reloc will be correctly computed when the final
1063          relocation is done.  If pcrel_offset is FALSE we want to wind
1064          up with the negative of the location within the section,
1065          which means we must adjust the existing addend by the change
1066          in the location within the section.  If pcrel_offset is TRUE
1067          we do not want to adjust the existing addend at all.
1068
1069          FIXME: This seems logical to me, but for the case of
1070          producing relocatable output it is not what the code
1071          actually does.  I don't want to change it, because it seems
1072          far too likely that something will break.  */
1073
1074       relocation -=
1075         input_section->output_section->vma + input_section->output_offset;
1076
1077       if (howto->pcrel_offset && howto->partial_inplace)
1078         relocation -= reloc_entry->address;
1079     }
1080
1081   if (! howto->partial_inplace)
1082     {
1083       /* This is a partial relocation, and we want to apply the relocation
1084          to the reloc entry rather than the raw data. Modify the reloc
1085          inplace to reflect what we now know.  */
1086       reloc_entry->addend = relocation;
1087       reloc_entry->address += input_section->output_offset;
1088       return flag;
1089     }
1090   else
1091     {
1092       /* This is a partial relocation, but inplace, so modify the
1093          reloc record a bit.
1094
1095          If we've relocated with a symbol with a section, change
1096          into a ref to the section belonging to the symbol.  */
1097       reloc_entry->address += input_section->output_offset;
1098
1099       /* WTF?? */
1100       if (abfd->xvec->flavour == bfd_target_coff_flavour
1101           && strcmp (abfd->xvec->name, "coff-Intel-little") != 0
1102           && strcmp (abfd->xvec->name, "coff-Intel-big") != 0)
1103         {
1104 #if 1
1105 /* For m68k-coff, the addend was being subtracted twice during
1106    relocation with -r.  Removing the line below this comment
1107    fixes that problem; see PR 2953.
1108
1109 However, Ian wrote the following, regarding removing the line below,
1110 which explains why it is still enabled:  --djm
1111
1112 If you put a patch like that into BFD you need to check all the COFF
1113 linkers.  I am fairly certain that patch will break coff-i386 (e.g.,
1114 SCO); see coff_i386_reloc in coff-i386.c where I worked around the
1115 problem in a different way.  There may very well be a reason that the
1116 code works as it does.
1117
1118 Hmmm.  The first obvious point is that bfd_install_relocation should
1119 not have any tests that depend upon the flavour.  It's seem like
1120 entirely the wrong place for such a thing.  The second obvious point
1121 is that the current code ignores the reloc addend when producing
1122 relocatable output for COFF.  That's peculiar.  In fact, I really
1123 have no idea what the point of the line you want to remove is.
1124
1125 A typical COFF reloc subtracts the old value of the symbol and adds in
1126 the new value to the location in the object file (if it's a pc
1127 relative reloc it adds the difference between the symbol value and the
1128 location).  When relocating we need to preserve that property.
1129
1130 BFD handles this by setting the addend to the negative of the old
1131 value of the symbol.  Unfortunately it handles common symbols in a
1132 non-standard way (it doesn't subtract the old value) but that's a
1133 different story (we can't change it without losing backward
1134 compatibility with old object files) (coff-i386 does subtract the old
1135 value, to be compatible with existing coff-i386 targets, like SCO).
1136
1137 So everything works fine when not producing relocatable output.  When
1138 we are producing relocatable output, logically we should do exactly
1139 what we do when not producing relocatable output.  Therefore, your
1140 patch is correct.  In fact, it should probably always just set
1141 reloc_entry->addend to 0 for all cases, since it is, in fact, going to
1142 add the value into the object file.  This won't hurt the COFF code,
1143 which doesn't use the addend; I'm not sure what it will do to other
1144 formats (the thing to check for would be whether any formats both use
1145 the addend and set partial_inplace).
1146
1147 When I wanted to make coff-i386 produce relocatable output, I ran
1148 into the problem that you are running into: I wanted to remove that
1149 line.  Rather than risk it, I made the coff-i386 relocs use a special
1150 function; it's coff_i386_reloc in coff-i386.c.  The function
1151 specifically adds the addend field into the object file, knowing that
1152 bfd_install_relocation is not going to.  If you remove that line, then
1153 coff-i386.c will wind up adding the addend field in twice.  It's
1154 trivial to fix; it just needs to be done.
1155
1156 The problem with removing the line is just that it may break some
1157 working code.  With BFD it's hard to be sure of anything.  The right
1158 way to deal with this is simply to build and test at least all the
1159 supported COFF targets.  It should be straightforward if time and disk
1160 space consuming.  For each target:
1161     1) build the linker
1162     2) generate some executable, and link it using -r (I would
1163        probably use paranoia.o and link against newlib/libc.a, which
1164        for all the supported targets would be available in
1165        /usr/cygnus/progressive/H-host/target/lib/libc.a).
1166     3) make the change to reloc.c
1167     4) rebuild the linker
1168     5) repeat step 2
1169     6) if the resulting object files are the same, you have at least
1170        made it no worse
1171     7) if they are different you have to figure out which version is
1172        right.  */
1173           relocation -= reloc_entry->addend;
1174 #endif
1175           reloc_entry->addend = 0;
1176         }
1177       else
1178         {
1179           reloc_entry->addend = relocation;
1180         }
1181     }
1182
1183   /* FIXME: This overflow checking is incomplete, because the value
1184      might have overflowed before we get here.  For a correct check we
1185      need to compute the value in a size larger than bitsize, but we
1186      can't reasonably do that for a reloc the same size as a host
1187      machine word.
1188      FIXME: We should also do overflow checking on the result after
1189      adding in the value contained in the object file.  */
1190   if (howto->complain_on_overflow != complain_overflow_dont)
1191     flag = bfd_check_overflow (howto->complain_on_overflow,
1192                                howto->bitsize,
1193                                howto->rightshift,
1194                                bfd_arch_bits_per_address (abfd),
1195                                relocation);
1196
1197   /* Either we are relocating all the way, or we don't want to apply
1198      the relocation to the reloc entry (probably because there isn't
1199      any room in the output format to describe addends to relocs).  */
1200
1201   /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
1202      (OSF version 1.3, compiler version 3.11).  It miscompiles the
1203      following program:
1204
1205      struct str
1206      {
1207        unsigned int i0;
1208      } s = { 0 };
1209
1210      int
1211      main ()
1212      {
1213        unsigned long x;
1214
1215        x = 0x100000000;
1216        x <<= (unsigned long) s.i0;
1217        if (x == 0)
1218          printf ("failed\n");
1219        else
1220          printf ("succeeded (%lx)\n", x);
1221      }
1222      */
1223
1224   relocation >>= (bfd_vma) howto->rightshift;
1225
1226   /* Shift everything up to where it's going to be used.  */
1227   relocation <<= (bfd_vma) howto->bitpos;
1228
1229   /* Wait for the day when all have the mask in them.  */
1230
1231   /* What we do:
1232      i instruction to be left alone
1233      o offset within instruction
1234      r relocation offset to apply
1235      S src mask
1236      D dst mask
1237      N ~dst mask
1238      A part 1
1239      B part 2
1240      R result
1241
1242      Do this:
1243      ((  i i i i i o o o o o  from bfd_get<size>
1244      and           S S S S S) to get the size offset we want
1245      +   r r r r r r r r r r) to get the final value to place
1246      and           D D D D D  to chop to right size
1247      -----------------------
1248      =             A A A A A
1249      And this:
1250      (   i i i i i o o o o o  from bfd_get<size>
1251      and N N N N N          ) get instruction
1252      -----------------------
1253      =   B B B B B
1254
1255      And then:
1256      (   B B B B B
1257      or            A A A A A)
1258      -----------------------
1259      =   R R R R R R R R R R  put into bfd_put<size>
1260      */
1261
1262 #define DOIT(x) \
1263   x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) +  relocation) & howto->dst_mask))
1264
1265   data = (bfd_byte *) data_start + (octets - data_start_offset);
1266
1267   switch (howto->size)
1268     {
1269     case 0:
1270       {
1271         char x = bfd_get_8 (abfd, data);
1272         DOIT (x);
1273         bfd_put_8 (abfd, x, data);
1274       }
1275       break;
1276
1277     case 1:
1278       {
1279         short x = bfd_get_16 (abfd, data);
1280         DOIT (x);
1281         bfd_put_16 (abfd, (bfd_vma) x, data);
1282       }
1283       break;
1284     case 2:
1285       {
1286         long x = bfd_get_32 (abfd, data);
1287         DOIT (x);
1288         bfd_put_32 (abfd, (bfd_vma) x, data);
1289       }
1290       break;
1291     case -2:
1292       {
1293         long x = bfd_get_32 (abfd, data);
1294         relocation = -relocation;
1295         DOIT (x);
1296         bfd_put_32 (abfd, (bfd_vma) x, data);
1297       }
1298       break;
1299
1300     case 3:
1301       /* Do nothing */
1302       break;
1303
1304     case 4:
1305       {
1306         bfd_vma x = bfd_get_64 (abfd, data);
1307         DOIT (x);
1308         bfd_put_64 (abfd, x, data);
1309       }
1310       break;
1311     default:
1312       return bfd_reloc_other;
1313     }
1314
1315   return flag;
1316 }
1317
1318 /* This relocation routine is used by some of the backend linkers.
1319    They do not construct asymbol or arelent structures, so there is no
1320    reason for them to use bfd_perform_relocation.  Also,
1321    bfd_perform_relocation is so hacked up it is easier to write a new
1322    function than to try to deal with it.
1323
1324    This routine does a final relocation.  Whether it is useful for a
1325    relocatable link depends upon how the object format defines
1326    relocations.
1327
1328    FIXME: This routine ignores any special_function in the HOWTO,
1329    since the existing special_function values have been written for
1330    bfd_perform_relocation.
1331
1332    HOWTO is the reloc howto information.
1333    INPUT_BFD is the BFD which the reloc applies to.
1334    INPUT_SECTION is the section which the reloc applies to.
1335    CONTENTS is the contents of the section.
1336    ADDRESS is the address of the reloc within INPUT_SECTION.
1337    VALUE is the value of the symbol the reloc refers to.
1338    ADDEND is the addend of the reloc.  */
1339
1340 bfd_reloc_status_type
1341 _bfd_final_link_relocate (reloc_howto_type *howto,
1342                           bfd *input_bfd,
1343                           asection *input_section,
1344                           bfd_byte *contents,
1345                           bfd_vma address,
1346                           bfd_vma value,
1347                           bfd_vma addend)
1348 {
1349   bfd_vma relocation;
1350
1351   /* Sanity check the address.  */
1352   if (address > input_section->_raw_size)
1353     return bfd_reloc_outofrange;
1354
1355   /* This function assumes that we are dealing with a basic relocation
1356      against a symbol.  We want to compute the value of the symbol to
1357      relocate to.  This is just VALUE, the value of the symbol, plus
1358      ADDEND, any addend associated with the reloc.  */
1359   relocation = value + addend;
1360
1361   /* If the relocation is PC relative, we want to set RELOCATION to
1362      the distance between the symbol (currently in RELOCATION) and the
1363      location we are relocating.  Some targets (e.g., i386-aout)
1364      arrange for the contents of the section to be the negative of the
1365      offset of the location within the section; for such targets
1366      pcrel_offset is FALSE.  Other targets (e.g., m88kbcs or ELF)
1367      simply leave the contents of the section as zero; for such
1368      targets pcrel_offset is TRUE.  If pcrel_offset is FALSE we do not
1369      need to subtract out the offset of the location within the
1370      section (which is just ADDRESS).  */
1371   if (howto->pc_relative)
1372     {
1373       relocation -= (input_section->output_section->vma
1374                      + input_section->output_offset);
1375       if (howto->pcrel_offset)
1376         relocation -= address;
1377     }
1378
1379   return _bfd_relocate_contents (howto, input_bfd, relocation,
1380                                  contents + address);
1381 }
1382
1383 /* Relocate a given location using a given value and howto.  */
1384
1385 bfd_reloc_status_type
1386 _bfd_relocate_contents (reloc_howto_type *howto,
1387                         bfd *input_bfd,
1388                         bfd_vma relocation,
1389                         bfd_byte *location)
1390 {
1391   int size;
1392   bfd_vma x = 0;
1393   bfd_reloc_status_type flag;
1394   unsigned int rightshift = howto->rightshift;
1395   unsigned int bitpos = howto->bitpos;
1396
1397   /* If the size is negative, negate RELOCATION.  This isn't very
1398      general.  */
1399   if (howto->size < 0)
1400     relocation = -relocation;
1401
1402   /* Get the value we are going to relocate.  */
1403   size = bfd_get_reloc_size (howto);
1404   switch (size)
1405     {
1406     default:
1407     case 0:
1408       abort ();
1409     case 1:
1410       x = bfd_get_8 (input_bfd, location);
1411       break;
1412     case 2:
1413       x = bfd_get_16 (input_bfd, location);
1414       break;
1415     case 4:
1416       x = bfd_get_32 (input_bfd, location);
1417       break;
1418     case 8:
1419 #ifdef BFD64
1420       x = bfd_get_64 (input_bfd, location);
1421 #else
1422       abort ();
1423 #endif
1424       break;
1425     }
1426
1427   /* Check for overflow.  FIXME: We may drop bits during the addition
1428      which we don't check for.  We must either check at every single
1429      operation, which would be tedious, or we must do the computations
1430      in a type larger than bfd_vma, which would be inefficient.  */
1431   flag = bfd_reloc_ok;
1432   if (howto->complain_on_overflow != complain_overflow_dont)
1433     {
1434       bfd_vma addrmask, fieldmask, signmask, ss;
1435       bfd_vma a, b, sum;
1436
1437       /* Get the values to be added together.  For signed and unsigned
1438          relocations, we assume that all values should be truncated to
1439          the size of an address.  For bitfields, all the bits matter.
1440          See also bfd_check_overflow.  */
1441       fieldmask = N_ONES (howto->bitsize);
1442       addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
1443       a = relocation;
1444       b = x & howto->src_mask;
1445
1446       switch (howto->complain_on_overflow)
1447         {
1448         case complain_overflow_signed:
1449           a = (a & addrmask) >> rightshift;
1450
1451           /* If any sign bits are set, all sign bits must be set.
1452              That is, A must be a valid negative address after
1453              shifting.  */
1454           signmask = ~ (fieldmask >> 1);
1455           ss = a & signmask;
1456           if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
1457             flag = bfd_reloc_overflow;
1458
1459           /* We only need this next bit of code if the sign bit of B
1460              is below the sign bit of A.  This would only happen if
1461              SRC_MASK had fewer bits than BITSIZE.  Note that if
1462              SRC_MASK has more bits than BITSIZE, we can get into
1463              trouble; we would need to verify that B is in range, as
1464              we do for A above.  */
1465           signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
1466
1467           /* Set all the bits above the sign bit.  */
1468           b = (b ^ signmask) - signmask;
1469
1470           b = (b & addrmask) >> bitpos;
1471
1472           /* Now we can do the addition.  */
1473           sum = a + b;
1474
1475           /* See if the result has the correct sign.  Bits above the
1476              sign bit are junk now; ignore them.  If the sum is
1477              positive, make sure we did not have all negative inputs;
1478              if the sum is negative, make sure we did not have all
1479              positive inputs.  The test below looks only at the sign
1480              bits, and it really just
1481                  SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
1482              */
1483           signmask = (fieldmask >> 1) + 1;
1484           if (((~ (a ^ b)) & (a ^ sum)) & signmask)
1485             flag = bfd_reloc_overflow;
1486
1487           break;
1488
1489         case complain_overflow_unsigned:
1490           /* Checking for an unsigned overflow is relatively easy:
1491              trim the addresses and add, and trim the result as well.
1492              Overflow is normally indicated when the result does not
1493              fit in the field.  However, we also need to consider the
1494              case when, e.g., fieldmask is 0x7fffffff or smaller, an
1495              input is 0x80000000, and bfd_vma is only 32 bits; then we
1496              will get sum == 0, but there is an overflow, since the
1497              inputs did not fit in the field.  Instead of doing a
1498              separate test, we can check for this by or-ing in the
1499              operands when testing for the sum overflowing its final
1500              field.  */
1501           a = (a & addrmask) >> rightshift;
1502           b = (b & addrmask) >> bitpos;
1503           sum = (a + b) & addrmask;
1504           if ((a | b | sum) & ~ fieldmask)
1505             flag = bfd_reloc_overflow;
1506
1507           break;
1508
1509         case complain_overflow_bitfield:
1510           /* Much like the signed check, but for a field one bit
1511              wider, and no trimming inputs with addrmask.  We allow a
1512              bitfield to represent numbers in the range -2**n to
1513              2**n-1, where n is the number of bits in the field.
1514              Note that when bfd_vma is 32 bits, a 32-bit reloc can't
1515              overflow, which is exactly what we want.  */
1516           a >>= rightshift;
1517
1518           signmask = ~ fieldmask;
1519           ss = a & signmask;
1520           if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & signmask))
1521             flag = bfd_reloc_overflow;
1522
1523           signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
1524           b = (b ^ signmask) - signmask;
1525
1526           b >>= bitpos;
1527
1528           sum = a + b;
1529
1530           /* We mask with addrmask here to explicitly allow an address
1531              wrap-around.  The Linux kernel relies on it, and it is
1532              the only way to write assembler code which can run when
1533              loaded at a location 0x80000000 away from the location at
1534              which it is linked.  */
1535           signmask = fieldmask + 1;
1536           if (((~ (a ^ b)) & (a ^ sum)) & signmask & addrmask)
1537             flag = bfd_reloc_overflow;
1538
1539           break;
1540
1541         default:
1542           abort ();
1543         }
1544     }
1545
1546   /* Put RELOCATION in the right bits.  */
1547   relocation >>= (bfd_vma) rightshift;
1548   relocation <<= (bfd_vma) bitpos;
1549
1550   /* Add RELOCATION to the right bits of X.  */
1551   x = ((x & ~howto->dst_mask)
1552        | (((x & howto->src_mask) + relocation) & howto->dst_mask));
1553
1554   /* Put the relocated value back in the object file.  */
1555   switch (size)
1556     {
1557     default:
1558     case 0:
1559       abort ();
1560     case 1:
1561       bfd_put_8 (input_bfd, x, location);
1562       break;
1563     case 2:
1564       bfd_put_16 (input_bfd, x, location);
1565       break;
1566     case 4:
1567       bfd_put_32 (input_bfd, x, location);
1568       break;
1569     case 8:
1570 #ifdef BFD64
1571       bfd_put_64 (input_bfd, x, location);
1572 #else
1573       abort ();
1574 #endif
1575       break;
1576     }
1577
1578   return flag;
1579 }
1580
1581 /*
1582 DOCDD
1583 INODE
1584         howto manager,  , typedef arelent, Relocations
1585
1586 SECTION
1587         The howto manager
1588
1589         When an application wants to create a relocation, but doesn't
1590         know what the target machine might call it, it can find out by
1591         using this bit of code.
1592
1593 */
1594
1595 /*
1596 TYPEDEF
1597         bfd_reloc_code_type
1598
1599 DESCRIPTION
1600         The insides of a reloc code.  The idea is that, eventually, there
1601         will be one enumerator for every type of relocation we ever do.
1602         Pass one of these values to <<bfd_reloc_type_lookup>>, and it'll
1603         return a howto pointer.
1604
1605         This does mean that the application must determine the correct
1606         enumerator value; you can't get a howto pointer from a random set
1607         of attributes.
1608
1609 SENUM
1610    bfd_reloc_code_real
1611
1612 ENUM
1613   BFD_RELOC_64
1614 ENUMX
1615   BFD_RELOC_32
1616 ENUMX
1617   BFD_RELOC_26
1618 ENUMX
1619   BFD_RELOC_24
1620 ENUMX
1621   BFD_RELOC_16
1622 ENUMX
1623   BFD_RELOC_14
1624 ENUMX
1625   BFD_RELOC_8
1626 ENUMDOC
1627   Basic absolute relocations of N bits.
1628
1629 ENUM
1630   BFD_RELOC_64_PCREL
1631 ENUMX
1632   BFD_RELOC_32_PCREL
1633 ENUMX
1634   BFD_RELOC_24_PCREL
1635 ENUMX
1636   BFD_RELOC_16_PCREL
1637 ENUMX
1638   BFD_RELOC_12_PCREL
1639 ENUMX
1640   BFD_RELOC_8_PCREL
1641 ENUMDOC
1642   PC-relative relocations.  Sometimes these are relative to the address
1643 of the relocation itself; sometimes they are relative to the start of
1644 the section containing the relocation.  It depends on the specific target.
1645
1646 The 24-bit relocation is used in some Intel 960 configurations.
1647
1648 ENUM
1649   BFD_RELOC_32_GOT_PCREL
1650 ENUMX
1651   BFD_RELOC_16_GOT_PCREL
1652 ENUMX
1653   BFD_RELOC_8_GOT_PCREL
1654 ENUMX
1655   BFD_RELOC_32_GOTOFF
1656 ENUMX
1657   BFD_RELOC_16_GOTOFF
1658 ENUMX
1659   BFD_RELOC_LO16_GOTOFF
1660 ENUMX
1661   BFD_RELOC_HI16_GOTOFF
1662 ENUMX
1663   BFD_RELOC_HI16_S_GOTOFF
1664 ENUMX
1665   BFD_RELOC_8_GOTOFF
1666 ENUMX
1667   BFD_RELOC_64_PLT_PCREL
1668 ENUMX
1669   BFD_RELOC_32_PLT_PCREL
1670 ENUMX
1671   BFD_RELOC_24_PLT_PCREL
1672 ENUMX
1673   BFD_RELOC_16_PLT_PCREL
1674 ENUMX
1675   BFD_RELOC_8_PLT_PCREL
1676 ENUMX
1677   BFD_RELOC_64_PLTOFF
1678 ENUMX
1679   BFD_RELOC_32_PLTOFF
1680 ENUMX
1681   BFD_RELOC_16_PLTOFF
1682 ENUMX
1683   BFD_RELOC_LO16_PLTOFF
1684 ENUMX
1685   BFD_RELOC_HI16_PLTOFF
1686 ENUMX
1687   BFD_RELOC_HI16_S_PLTOFF
1688 ENUMX
1689   BFD_RELOC_8_PLTOFF
1690 ENUMDOC
1691   For ELF.
1692
1693 ENUM
1694   BFD_RELOC_68K_GLOB_DAT
1695 ENUMX
1696   BFD_RELOC_68K_JMP_SLOT
1697 ENUMX
1698   BFD_RELOC_68K_RELATIVE
1699 ENUMDOC
1700   Relocations used by 68K ELF.
1701
1702 ENUM
1703   BFD_RELOC_32_BASEREL
1704 ENUMX
1705   BFD_RELOC_16_BASEREL
1706 ENUMX
1707   BFD_RELOC_LO16_BASEREL
1708 ENUMX
1709   BFD_RELOC_HI16_BASEREL
1710 ENUMX
1711   BFD_RELOC_HI16_S_BASEREL
1712 ENUMX
1713   BFD_RELOC_8_BASEREL
1714 ENUMX
1715   BFD_RELOC_RVA
1716 ENUMDOC
1717   Linkage-table relative.
1718
1719 ENUM
1720   BFD_RELOC_8_FFnn
1721 ENUMDOC
1722   Absolute 8-bit relocation, but used to form an address like 0xFFnn.
1723
1724 ENUM
1725   BFD_RELOC_32_PCREL_S2
1726 ENUMX
1727   BFD_RELOC_16_PCREL_S2
1728 ENUMX
1729   BFD_RELOC_23_PCREL_S2
1730 ENUMDOC
1731   These PC-relative relocations are stored as word displacements --
1732 i.e., byte displacements shifted right two bits.  The 30-bit word
1733 displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1734 SPARC.  (SPARC tools generally refer to this as <<WDISP30>>.)  The
1735 signed 16-bit displacement is used on the MIPS, and the 23-bit
1736 displacement is used on the Alpha.
1737
1738 ENUM
1739   BFD_RELOC_HI22
1740 ENUMX
1741   BFD_RELOC_LO10
1742 ENUMDOC
1743   High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1744 the target word.  These are used on the SPARC.
1745
1746 ENUM
1747   BFD_RELOC_GPREL16
1748 ENUMX
1749   BFD_RELOC_GPREL32
1750 ENUMDOC
1751   For systems that allocate a Global Pointer register, these are
1752 displacements off that register.  These relocation types are
1753 handled specially, because the value the register will have is
1754 decided relatively late.
1755
1756 ENUM
1757   BFD_RELOC_I960_CALLJ
1758 ENUMDOC
1759   Reloc types used for i960/b.out.
1760
1761 ENUM
1762   BFD_RELOC_NONE
1763 ENUMX
1764   BFD_RELOC_SPARC_WDISP22
1765 ENUMX
1766   BFD_RELOC_SPARC22
1767 ENUMX
1768   BFD_RELOC_SPARC13
1769 ENUMX
1770   BFD_RELOC_SPARC_GOT10
1771 ENUMX
1772   BFD_RELOC_SPARC_GOT13
1773 ENUMX
1774   BFD_RELOC_SPARC_GOT22
1775 ENUMX
1776   BFD_RELOC_SPARC_PC10
1777 ENUMX
1778   BFD_RELOC_SPARC_PC22
1779 ENUMX
1780   BFD_RELOC_SPARC_WPLT30
1781 ENUMX
1782   BFD_RELOC_SPARC_COPY
1783 ENUMX
1784   BFD_RELOC_SPARC_GLOB_DAT
1785 ENUMX
1786   BFD_RELOC_SPARC_JMP_SLOT
1787 ENUMX
1788   BFD_RELOC_SPARC_RELATIVE
1789 ENUMX
1790   BFD_RELOC_SPARC_UA16
1791 ENUMX
1792   BFD_RELOC_SPARC_UA32
1793 ENUMX
1794   BFD_RELOC_SPARC_UA64
1795 ENUMDOC
1796   SPARC ELF relocations.  There is probably some overlap with other
1797   relocation types already defined.
1798
1799 ENUM
1800   BFD_RELOC_SPARC_BASE13
1801 ENUMX
1802   BFD_RELOC_SPARC_BASE22
1803 ENUMDOC
1804   I think these are specific to SPARC a.out (e.g., Sun 4).
1805
1806 ENUMEQ
1807   BFD_RELOC_SPARC_64
1808   BFD_RELOC_64
1809 ENUMX
1810   BFD_RELOC_SPARC_10
1811 ENUMX
1812   BFD_RELOC_SPARC_11
1813 ENUMX
1814   BFD_RELOC_SPARC_OLO10
1815 ENUMX
1816   BFD_RELOC_SPARC_HH22
1817 ENUMX
1818   BFD_RELOC_SPARC_HM10
1819 ENUMX
1820   BFD_RELOC_SPARC_LM22
1821 ENUMX
1822   BFD_RELOC_SPARC_PC_HH22
1823 ENUMX
1824   BFD_RELOC_SPARC_PC_HM10
1825 ENUMX
1826   BFD_RELOC_SPARC_PC_LM22
1827 ENUMX
1828   BFD_RELOC_SPARC_WDISP16
1829 ENUMX
1830   BFD_RELOC_SPARC_WDISP19
1831 ENUMX
1832   BFD_RELOC_SPARC_7
1833 ENUMX
1834   BFD_RELOC_SPARC_6
1835 ENUMX
1836   BFD_RELOC_SPARC_5
1837 ENUMEQX
1838   BFD_RELOC_SPARC_DISP64
1839   BFD_RELOC_64_PCREL
1840 ENUMX
1841   BFD_RELOC_SPARC_PLT32
1842 ENUMX
1843   BFD_RELOC_SPARC_PLT64
1844 ENUMX
1845   BFD_RELOC_SPARC_HIX22
1846 ENUMX
1847   BFD_RELOC_SPARC_LOX10
1848 ENUMX
1849   BFD_RELOC_SPARC_H44
1850 ENUMX
1851   BFD_RELOC_SPARC_M44
1852 ENUMX
1853   BFD_RELOC_SPARC_L44
1854 ENUMX
1855   BFD_RELOC_SPARC_REGISTER
1856 ENUMDOC
1857   SPARC64 relocations
1858
1859 ENUM
1860   BFD_RELOC_SPARC_REV32
1861 ENUMDOC
1862   SPARC little endian relocation
1863 ENUM
1864   BFD_RELOC_SPARC_TLS_GD_HI22
1865 ENUMX
1866   BFD_RELOC_SPARC_TLS_GD_LO10
1867 ENUMX
1868   BFD_RELOC_SPARC_TLS_GD_ADD
1869 ENUMX
1870   BFD_RELOC_SPARC_TLS_GD_CALL
1871 ENUMX
1872   BFD_RELOC_SPARC_TLS_LDM_HI22
1873 ENUMX
1874   BFD_RELOC_SPARC_TLS_LDM_LO10
1875 ENUMX
1876   BFD_RELOC_SPARC_TLS_LDM_ADD
1877 ENUMX
1878   BFD_RELOC_SPARC_TLS_LDM_CALL
1879 ENUMX
1880   BFD_RELOC_SPARC_TLS_LDO_HIX22
1881 ENUMX
1882   BFD_RELOC_SPARC_TLS_LDO_LOX10
1883 ENUMX
1884   BFD_RELOC_SPARC_TLS_LDO_ADD
1885 ENUMX
1886   BFD_RELOC_SPARC_TLS_IE_HI22
1887 ENUMX
1888   BFD_RELOC_SPARC_TLS_IE_LO10
1889 ENUMX
1890   BFD_RELOC_SPARC_TLS_IE_LD
1891 ENUMX
1892   BFD_RELOC_SPARC_TLS_IE_LDX
1893 ENUMX
1894   BFD_RELOC_SPARC_TLS_IE_ADD
1895 ENUMX
1896   BFD_RELOC_SPARC_TLS_LE_HIX22
1897 ENUMX
1898   BFD_RELOC_SPARC_TLS_LE_LOX10
1899 ENUMX
1900   BFD_RELOC_SPARC_TLS_DTPMOD32
1901 ENUMX
1902   BFD_RELOC_SPARC_TLS_DTPMOD64
1903 ENUMX
1904   BFD_RELOC_SPARC_TLS_DTPOFF32
1905 ENUMX
1906   BFD_RELOC_SPARC_TLS_DTPOFF64
1907 ENUMX
1908   BFD_RELOC_SPARC_TLS_TPOFF32
1909 ENUMX
1910   BFD_RELOC_SPARC_TLS_TPOFF64
1911 ENUMDOC
1912   SPARC TLS relocations
1913
1914 ENUM
1915   BFD_RELOC_ALPHA_GPDISP_HI16
1916 ENUMDOC
1917   Alpha ECOFF and ELF relocations.  Some of these treat the symbol or
1918      "addend" in some special way.
1919   For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1920      writing; when reading, it will be the absolute section symbol.  The
1921      addend is the displacement in bytes of the "lda" instruction from
1922      the "ldah" instruction (which is at the address of this reloc).
1923 ENUM
1924   BFD_RELOC_ALPHA_GPDISP_LO16
1925 ENUMDOC
1926   For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1927      with GPDISP_HI16 relocs.  The addend is ignored when writing the
1928      relocations out, and is filled in with the file's GP value on
1929      reading, for convenience.
1930
1931 ENUM
1932   BFD_RELOC_ALPHA_GPDISP
1933 ENUMDOC
1934   The ELF GPDISP relocation is exactly the same as the GPDISP_HI16
1935      relocation except that there is no accompanying GPDISP_LO16
1936      relocation.
1937
1938 ENUM
1939   BFD_RELOC_ALPHA_LITERAL
1940 ENUMX
1941   BFD_RELOC_ALPHA_ELF_LITERAL
1942 ENUMX
1943   BFD_RELOC_ALPHA_LITUSE
1944 ENUMDOC
1945   The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1946      the assembler turns it into a LDQ instruction to load the address of
1947      the symbol, and then fills in a register in the real instruction.
1948
1949      The LITERAL reloc, at the LDQ instruction, refers to the .lita
1950      section symbol.  The addend is ignored when writing, but is filled
1951      in with the file's GP value on reading, for convenience, as with the
1952      GPDISP_LO16 reloc.
1953
1954      The ELF_LITERAL reloc is somewhere between 16_GOTOFF and GPDISP_LO16.
1955      It should refer to the symbol to be referenced, as with 16_GOTOFF,
1956      but it generates output not based on the position within the .got
1957      section, but relative to the GP value chosen for the file during the
1958      final link stage.
1959
1960      The LITUSE reloc, on the instruction using the loaded address, gives
1961      information to the linker that it might be able to use to optimize
1962      away some literal section references.  The symbol is ignored (read
1963      as the absolute section symbol), and the "addend" indicates the type
1964      of instruction using the register:
1965               1 - "memory" fmt insn
1966               2 - byte-manipulation (byte offset reg)
1967               3 - jsr (target of branch)
1968
1969 ENUM
1970   BFD_RELOC_ALPHA_HINT
1971 ENUMDOC
1972   The HINT relocation indicates a value that should be filled into the
1973      "hint" field of a jmp/jsr/ret instruction, for possible branch-
1974      prediction logic which may be provided on some processors.
1975
1976 ENUM
1977   BFD_RELOC_ALPHA_LINKAGE
1978 ENUMDOC
1979   The LINKAGE relocation outputs a linkage pair in the object file,
1980      which is filled by the linker.
1981
1982 ENUM
1983   BFD_RELOC_ALPHA_CODEADDR
1984 ENUMDOC
1985   The CODEADDR relocation outputs a STO_CA in the object file,
1986      which is filled by the linker.
1987
1988 ENUM
1989   BFD_RELOC_ALPHA_GPREL_HI16
1990 ENUMX
1991   BFD_RELOC_ALPHA_GPREL_LO16
1992 ENUMDOC
1993   The GPREL_HI/LO relocations together form a 32-bit offset from the
1994      GP register.
1995
1996 ENUM
1997   BFD_RELOC_ALPHA_BRSGP
1998 ENUMDOC
1999   Like BFD_RELOC_23_PCREL_S2, except that the source and target must
2000   share a common GP, and the target address is adjusted for
2001   STO_ALPHA_STD_GPLOAD.
2002
2003 ENUM
2004   BFD_RELOC_ALPHA_TLSGD
2005 ENUMX
2006   BFD_RELOC_ALPHA_TLSLDM
2007 ENUMX
2008   BFD_RELOC_ALPHA_DTPMOD64
2009 ENUMX
2010   BFD_RELOC_ALPHA_GOTDTPREL16
2011 ENUMX
2012   BFD_RELOC_ALPHA_DTPREL64
2013 ENUMX
2014   BFD_RELOC_ALPHA_DTPREL_HI16
2015 ENUMX
2016   BFD_RELOC_ALPHA_DTPREL_LO16
2017 ENUMX
2018   BFD_RELOC_ALPHA_DTPREL16
2019 ENUMX
2020   BFD_RELOC_ALPHA_GOTTPREL16
2021 ENUMX
2022   BFD_RELOC_ALPHA_TPREL64
2023 ENUMX
2024   BFD_RELOC_ALPHA_TPREL_HI16
2025 ENUMX
2026   BFD_RELOC_ALPHA_TPREL_LO16
2027 ENUMX
2028   BFD_RELOC_ALPHA_TPREL16
2029 ENUMDOC
2030   Alpha thread-local storage relocations.
2031
2032 ENUM
2033   BFD_RELOC_MIPS_JMP
2034 ENUMDOC
2035   Bits 27..2 of the relocation address shifted right 2 bits;
2036      simple reloc otherwise.
2037
2038 ENUM
2039   BFD_RELOC_MIPS16_JMP
2040 ENUMDOC
2041   The MIPS16 jump instruction.
2042
2043 ENUM
2044   BFD_RELOC_MIPS16_GPREL
2045 ENUMDOC
2046   MIPS16 GP relative reloc.
2047
2048 ENUM
2049   BFD_RELOC_HI16
2050 ENUMDOC
2051   High 16 bits of 32-bit value; simple reloc.
2052 ENUM
2053   BFD_RELOC_HI16_S
2054 ENUMDOC
2055   High 16 bits of 32-bit value but the low 16 bits will be sign
2056      extended and added to form the final result.  If the low 16
2057      bits form a negative number, we need to add one to the high value
2058      to compensate for the borrow when the low bits are added.
2059 ENUM
2060   BFD_RELOC_LO16
2061 ENUMDOC
2062   Low 16 bits.
2063 ENUM
2064   BFD_RELOC_PCREL_HI16_S
2065 ENUMDOC
2066   Like BFD_RELOC_HI16_S, but PC relative.
2067 ENUM
2068   BFD_RELOC_PCREL_LO16
2069 ENUMDOC
2070   Like BFD_RELOC_LO16, but PC relative.
2071
2072 ENUM
2073   BFD_RELOC_MIPS_LITERAL
2074 ENUMDOC
2075   Relocation against a MIPS literal section.
2076
2077 ENUM
2078   BFD_RELOC_MIPS_GOT16
2079 ENUMX
2080   BFD_RELOC_MIPS_CALL16
2081 ENUMX
2082   BFD_RELOC_MIPS_GOT_HI16
2083 ENUMX
2084   BFD_RELOC_MIPS_GOT_LO16
2085 ENUMX
2086   BFD_RELOC_MIPS_CALL_HI16
2087 ENUMX
2088   BFD_RELOC_MIPS_CALL_LO16
2089 ENUMX
2090   BFD_RELOC_MIPS_SUB
2091 ENUMX
2092   BFD_RELOC_MIPS_GOT_PAGE
2093 ENUMX
2094   BFD_RELOC_MIPS_GOT_OFST
2095 ENUMX
2096   BFD_RELOC_MIPS_GOT_DISP
2097 ENUMX
2098   BFD_RELOC_MIPS_SHIFT5
2099 ENUMX
2100   BFD_RELOC_MIPS_SHIFT6
2101 ENUMX
2102   BFD_RELOC_MIPS_INSERT_A
2103 ENUMX
2104   BFD_RELOC_MIPS_INSERT_B
2105 ENUMX
2106   BFD_RELOC_MIPS_DELETE
2107 ENUMX
2108   BFD_RELOC_MIPS_HIGHEST
2109 ENUMX
2110   BFD_RELOC_MIPS_HIGHER
2111 ENUMX
2112   BFD_RELOC_MIPS_SCN_DISP
2113 ENUMX
2114   BFD_RELOC_MIPS_REL16
2115 ENUMX
2116   BFD_RELOC_MIPS_RELGOT
2117 ENUMX
2118   BFD_RELOC_MIPS_JALR
2119 COMMENT
2120 ENUM
2121   BFD_RELOC_FRV_LABEL16
2122 ENUMX
2123   BFD_RELOC_FRV_LABEL24
2124 ENUMX
2125   BFD_RELOC_FRV_LO16
2126 ENUMX
2127   BFD_RELOC_FRV_HI16
2128 ENUMX
2129   BFD_RELOC_FRV_GPREL12
2130 ENUMX
2131   BFD_RELOC_FRV_GPRELU12
2132 ENUMX
2133   BFD_RELOC_FRV_GPREL32
2134 ENUMX
2135   BFD_RELOC_FRV_GPRELHI
2136 ENUMX
2137   BFD_RELOC_FRV_GPRELLO
2138 ENUMDOC
2139   Fujitsu Frv Relocations.
2140 COMMENT
2141 COMMENT
2142 ENUMDOC
2143   MIPS ELF relocations.
2144
2145 COMMENT
2146 ENUM
2147   BFD_RELOC_MN10300_GOTOFF24
2148 ENUMDOC
2149   This is a 24bit GOT-relative reloc for the mn10300.
2150 ENUM
2151   BFD_RELOC_MN10300_GOT32
2152 ENUMDOC
2153   This is a 32bit GOT-relative reloc for the mn10300, offset by two bytes
2154   in the instruction.
2155 ENUM
2156   BFD_RELOC_MN10300_GOT24
2157 ENUMDOC
2158   This is a 24bit GOT-relative reloc for the mn10300, offset by two bytes
2159   in the instruction.
2160 ENUM
2161   BFD_RELOC_MN10300_GOT16
2162 ENUMDOC
2163   This is a 16bit GOT-relative reloc for the mn10300, offset by two bytes
2164   in the instruction.
2165 ENUM
2166   BFD_RELOC_MN10300_COPY
2167 ENUMDOC
2168   Copy symbol at runtime.
2169 ENUM
2170   BFD_RELOC_MN10300_GLOB_DAT
2171 ENUMDOC
2172   Create GOT entry.
2173 ENUM
2174   BFD_RELOC_MN10300_JMP_SLOT
2175 ENUMDOC
2176   Create PLT entry.
2177 ENUM
2178   BFD_RELOC_MN10300_RELATIVE
2179 ENUMDOC
2180   Adjust by program base.
2181 COMMENT
2182
2183 ENUM
2184   BFD_RELOC_386_GOT32
2185 ENUMX
2186   BFD_RELOC_386_PLT32
2187 ENUMX
2188   BFD_RELOC_386_COPY
2189 ENUMX
2190   BFD_RELOC_386_GLOB_DAT
2191 ENUMX
2192   BFD_RELOC_386_JUMP_SLOT
2193 ENUMX
2194   BFD_RELOC_386_RELATIVE
2195 ENUMX
2196   BFD_RELOC_386_GOTOFF
2197 ENUMX
2198   BFD_RELOC_386_GOTPC
2199 ENUMX
2200   BFD_RELOC_386_TLS_TPOFF
2201 ENUMX
2202   BFD_RELOC_386_TLS_IE
2203 ENUMX
2204   BFD_RELOC_386_TLS_GOTIE
2205 ENUMX
2206   BFD_RELOC_386_TLS_LE
2207 ENUMX
2208   BFD_RELOC_386_TLS_GD
2209 ENUMX
2210   BFD_RELOC_386_TLS_LDM
2211 ENUMX
2212   BFD_RELOC_386_TLS_LDO_32
2213 ENUMX
2214   BFD_RELOC_386_TLS_IE_32
2215 ENUMX
2216   BFD_RELOC_386_TLS_LE_32
2217 ENUMX
2218   BFD_RELOC_386_TLS_DTPMOD32
2219 ENUMX
2220   BFD_RELOC_386_TLS_DTPOFF32
2221 ENUMX
2222   BFD_RELOC_386_TLS_TPOFF32
2223 ENUMDOC
2224   i386/elf relocations
2225
2226 ENUM
2227   BFD_RELOC_X86_64_GOT32
2228 ENUMX
2229   BFD_RELOC_X86_64_PLT32
2230 ENUMX
2231   BFD_RELOC_X86_64_COPY
2232 ENUMX
2233   BFD_RELOC_X86_64_GLOB_DAT
2234 ENUMX
2235   BFD_RELOC_X86_64_JUMP_SLOT
2236 ENUMX
2237   BFD_RELOC_X86_64_RELATIVE
2238 ENUMX
2239   BFD_RELOC_X86_64_GOTPCREL
2240 ENUMX
2241   BFD_RELOC_X86_64_32S
2242 ENUMX
2243   BFD_RELOC_X86_64_DTPMOD64
2244 ENUMX
2245   BFD_RELOC_X86_64_DTPOFF64
2246 ENUMX
2247   BFD_RELOC_X86_64_TPOFF64
2248 ENUMX
2249   BFD_RELOC_X86_64_TLSGD
2250 ENUMX
2251   BFD_RELOC_X86_64_TLSLD
2252 ENUMX
2253   BFD_RELOC_X86_64_DTPOFF32
2254 ENUMX
2255   BFD_RELOC_X86_64_GOTTPOFF
2256 ENUMX
2257   BFD_RELOC_X86_64_TPOFF32
2258 ENUMDOC
2259   x86-64/elf relocations
2260
2261 ENUM
2262   BFD_RELOC_NS32K_IMM_8
2263 ENUMX
2264   BFD_RELOC_NS32K_IMM_16
2265 ENUMX
2266   BFD_RELOC_NS32K_IMM_32
2267 ENUMX
2268   BFD_RELOC_NS32K_IMM_8_PCREL
2269 ENUMX
2270   BFD_RELOC_NS32K_IMM_16_PCREL
2271 ENUMX
2272   BFD_RELOC_NS32K_IMM_32_PCREL
2273 ENUMX
2274   BFD_RELOC_NS32K_DISP_8
2275 ENUMX
2276   BFD_RELOC_NS32K_DISP_16
2277 ENUMX
2278   BFD_RELOC_NS32K_DISP_32
2279 ENUMX
2280   BFD_RELOC_NS32K_DISP_8_PCREL
2281 ENUMX
2282   BFD_RELOC_NS32K_DISP_16_PCREL
2283 ENUMX
2284   BFD_RELOC_NS32K_DISP_32_PCREL
2285 ENUMDOC
2286   ns32k relocations
2287
2288 ENUM
2289   BFD_RELOC_PDP11_DISP_8_PCREL
2290 ENUMX
2291   BFD_RELOC_PDP11_DISP_6_PCREL
2292 ENUMDOC
2293   PDP11 relocations
2294
2295 ENUM
2296   BFD_RELOC_PJ_CODE_HI16
2297 ENUMX
2298   BFD_RELOC_PJ_CODE_LO16
2299 ENUMX
2300   BFD_RELOC_PJ_CODE_DIR16
2301 ENUMX
2302   BFD_RELOC_PJ_CODE_DIR32
2303 ENUMX
2304   BFD_RELOC_PJ_CODE_REL16
2305 ENUMX
2306   BFD_RELOC_PJ_CODE_REL32
2307 ENUMDOC
2308   Picojava relocs.  Not all of these appear in object files.
2309
2310 ENUM
2311   BFD_RELOC_PPC_B26
2312 ENUMX
2313   BFD_RELOC_PPC_BA26
2314 ENUMX
2315   BFD_RELOC_PPC_TOC16
2316 ENUMX
2317   BFD_RELOC_PPC_B16
2318 ENUMX
2319   BFD_RELOC_PPC_B16_BRTAKEN
2320 ENUMX
2321   BFD_RELOC_PPC_B16_BRNTAKEN
2322 ENUMX
2323   BFD_RELOC_PPC_BA16
2324 ENUMX
2325   BFD_RELOC_PPC_BA16_BRTAKEN
2326 ENUMX
2327   BFD_RELOC_PPC_BA16_BRNTAKEN
2328 ENUMX
2329   BFD_RELOC_PPC_COPY
2330 ENUMX
2331   BFD_RELOC_PPC_GLOB_DAT
2332 ENUMX
2333   BFD_RELOC_PPC_JMP_SLOT
2334 ENUMX
2335   BFD_RELOC_PPC_RELATIVE
2336 ENUMX
2337   BFD_RELOC_PPC_LOCAL24PC
2338 ENUMX
2339   BFD_RELOC_PPC_EMB_NADDR32
2340 ENUMX
2341   BFD_RELOC_PPC_EMB_NADDR16
2342 ENUMX
2343   BFD_RELOC_PPC_EMB_NADDR16_LO
2344 ENUMX
2345   BFD_RELOC_PPC_EMB_NADDR16_HI
2346 ENUMX
2347   BFD_RELOC_PPC_EMB_NADDR16_HA
2348 ENUMX
2349   BFD_RELOC_PPC_EMB_SDAI16
2350 ENUMX
2351   BFD_RELOC_PPC_EMB_SDA2I16
2352 ENUMX
2353   BFD_RELOC_PPC_EMB_SDA2REL
2354 ENUMX
2355   BFD_RELOC_PPC_EMB_SDA21
2356 ENUMX
2357   BFD_RELOC_PPC_EMB_MRKREF
2358 ENUMX
2359   BFD_RELOC_PPC_EMB_RELSEC16
2360 ENUMX
2361   BFD_RELOC_PPC_EMB_RELST_LO
2362 ENUMX
2363   BFD_RELOC_PPC_EMB_RELST_HI
2364 ENUMX
2365   BFD_RELOC_PPC_EMB_RELST_HA
2366 ENUMX
2367   BFD_RELOC_PPC_EMB_BIT_FLD
2368 ENUMX
2369   BFD_RELOC_PPC_EMB_RELSDA
2370 ENUMX
2371   BFD_RELOC_PPC64_HIGHER
2372 ENUMX
2373   BFD_RELOC_PPC64_HIGHER_S
2374 ENUMX
2375   BFD_RELOC_PPC64_HIGHEST
2376 ENUMX
2377   BFD_RELOC_PPC64_HIGHEST_S
2378 ENUMX
2379   BFD_RELOC_PPC64_TOC16_LO
2380 ENUMX
2381   BFD_RELOC_PPC64_TOC16_HI
2382 ENUMX
2383   BFD_RELOC_PPC64_TOC16_HA
2384 ENUMX
2385   BFD_RELOC_PPC64_TOC
2386 ENUMX
2387   BFD_RELOC_PPC64_PLTGOT16
2388 ENUMX
2389   BFD_RELOC_PPC64_PLTGOT16_LO
2390 ENUMX
2391   BFD_RELOC_PPC64_PLTGOT16_HI
2392 ENUMX
2393   BFD_RELOC_PPC64_PLTGOT16_HA
2394 ENUMX
2395   BFD_RELOC_PPC64_ADDR16_DS
2396 ENUMX
2397   BFD_RELOC_PPC64_ADDR16_LO_DS
2398 ENUMX
2399   BFD_RELOC_PPC64_GOT16_DS
2400 ENUMX
2401   BFD_RELOC_PPC64_GOT16_LO_DS
2402 ENUMX
2403   BFD_RELOC_PPC64_PLT16_LO_DS
2404 ENUMX
2405   BFD_RELOC_PPC64_SECTOFF_DS
2406 ENUMX
2407   BFD_RELOC_PPC64_SECTOFF_LO_DS
2408 ENUMX
2409   BFD_RELOC_PPC64_TOC16_DS
2410 ENUMX
2411   BFD_RELOC_PPC64_TOC16_LO_DS
2412 ENUMX
2413   BFD_RELOC_PPC64_PLTGOT16_DS
2414 ENUMX
2415   BFD_RELOC_PPC64_PLTGOT16_LO_DS
2416 ENUMDOC
2417   Power(rs6000) and PowerPC relocations.
2418
2419 ENUM
2420   BFD_RELOC_PPC_TLS
2421 ENUMX
2422   BFD_RELOC_PPC_DTPMOD
2423 ENUMX
2424   BFD_RELOC_PPC_TPREL16
2425 ENUMX
2426   BFD_RELOC_PPC_TPREL16_LO
2427 ENUMX
2428   BFD_RELOC_PPC_TPREL16_HI
2429 ENUMX
2430   BFD_RELOC_PPC_TPREL16_HA
2431 ENUMX
2432   BFD_RELOC_PPC_TPREL
2433 ENUMX
2434   BFD_RELOC_PPC_DTPREL16
2435 ENUMX
2436   BFD_RELOC_PPC_DTPREL16_LO
2437 ENUMX
2438   BFD_RELOC_PPC_DTPREL16_HI
2439 ENUMX
2440   BFD_RELOC_PPC_DTPREL16_HA
2441 ENUMX
2442   BFD_RELOC_PPC_DTPREL
2443 ENUMX
2444   BFD_RELOC_PPC_GOT_TLSGD16
2445 ENUMX
2446   BFD_RELOC_PPC_GOT_TLSGD16_LO
2447 ENUMX
2448   BFD_RELOC_PPC_GOT_TLSGD16_HI
2449 ENUMX
2450   BFD_RELOC_PPC_GOT_TLSGD16_HA
2451 ENUMX
2452   BFD_RELOC_PPC_GOT_TLSLD16
2453 ENUMX
2454   BFD_RELOC_PPC_GOT_TLSLD16_LO
2455 ENUMX
2456   BFD_RELOC_PPC_GOT_TLSLD16_HI
2457 ENUMX
2458   BFD_RELOC_PPC_GOT_TLSLD16_HA
2459 ENUMX
2460   BFD_RELOC_PPC_GOT_TPREL16
2461 ENUMX
2462   BFD_RELOC_PPC_GOT_TPREL16_LO
2463 ENUMX
2464   BFD_RELOC_PPC_GOT_TPREL16_HI
2465 ENUMX
2466   BFD_RELOC_PPC_GOT_TPREL16_HA
2467 ENUMX
2468   BFD_RELOC_PPC_GOT_DTPREL16
2469 ENUMX
2470   BFD_RELOC_PPC_GOT_DTPREL16_LO
2471 ENUMX
2472   BFD_RELOC_PPC_GOT_DTPREL16_HI
2473 ENUMX
2474   BFD_RELOC_PPC_GOT_DTPREL16_HA
2475 ENUMX
2476   BFD_RELOC_PPC64_TPREL16_DS
2477 ENUMX
2478   BFD_RELOC_PPC64_TPREL16_LO_DS
2479 ENUMX
2480   BFD_RELOC_PPC64_TPREL16_HIGHER
2481 ENUMX
2482   BFD_RELOC_PPC64_TPREL16_HIGHERA
2483 ENUMX
2484   BFD_RELOC_PPC64_TPREL16_HIGHEST
2485 ENUMX
2486   BFD_RELOC_PPC64_TPREL16_HIGHESTA
2487 ENUMX
2488   BFD_RELOC_PPC64_DTPREL16_DS
2489 ENUMX
2490   BFD_RELOC_PPC64_DTPREL16_LO_DS
2491 ENUMX
2492   BFD_RELOC_PPC64_DTPREL16_HIGHER
2493 ENUMX
2494   BFD_RELOC_PPC64_DTPREL16_HIGHERA
2495 ENUMX
2496   BFD_RELOC_PPC64_DTPREL16_HIGHEST
2497 ENUMX
2498   BFD_RELOC_PPC64_DTPREL16_HIGHESTA
2499 ENUMDOC
2500   PowerPC and PowerPC64 thread-local storage relocations.
2501
2502 ENUM
2503   BFD_RELOC_I370_D12
2504 ENUMDOC
2505   IBM 370/390 relocations
2506
2507 ENUM
2508   BFD_RELOC_CTOR
2509 ENUMDOC
2510   The type of reloc used to build a contructor table - at the moment
2511   probably a 32 bit wide absolute relocation, but the target can choose.
2512   It generally does map to one of the other relocation types.
2513
2514 ENUM
2515   BFD_RELOC_ARM_PCREL_BRANCH
2516 ENUMDOC
2517   ARM 26 bit pc-relative branch.  The lowest two bits must be zero and are
2518   not stored in the instruction.
2519 ENUM
2520   BFD_RELOC_ARM_PCREL_BLX
2521 ENUMDOC
2522   ARM 26 bit pc-relative branch.  The lowest bit must be zero and is
2523   not stored in the instruction.  The 2nd lowest bit comes from a 1 bit
2524   field in the instruction.
2525 ENUM
2526   BFD_RELOC_THUMB_PCREL_BLX
2527 ENUMDOC
2528   Thumb 22 bit pc-relative branch.  The lowest bit must be zero and is
2529   not stored in the instruction.  The 2nd lowest bit comes from a 1 bit
2530   field in the instruction.
2531 ENUM
2532   BFD_RELOC_ARM_IMMEDIATE
2533 ENUMX
2534   BFD_RELOC_ARM_ADRL_IMMEDIATE
2535 ENUMX
2536   BFD_RELOC_ARM_OFFSET_IMM
2537 ENUMX
2538   BFD_RELOC_ARM_SHIFT_IMM
2539 ENUMX
2540   BFD_RELOC_ARM_SWI
2541 ENUMX
2542   BFD_RELOC_ARM_MULTI
2543 ENUMX
2544   BFD_RELOC_ARM_CP_OFF_IMM
2545 ENUMX
2546   BFD_RELOC_ARM_CP_OFF_IMM_S2
2547 ENUMX
2548   BFD_RELOC_ARM_ADR_IMM
2549 ENUMX
2550   BFD_RELOC_ARM_LDR_IMM
2551 ENUMX
2552   BFD_RELOC_ARM_LITERAL
2553 ENUMX
2554   BFD_RELOC_ARM_IN_POOL
2555 ENUMX
2556   BFD_RELOC_ARM_OFFSET_IMM8
2557 ENUMX
2558   BFD_RELOC_ARM_HWLITERAL
2559 ENUMX
2560   BFD_RELOC_ARM_THUMB_ADD
2561 ENUMX
2562   BFD_RELOC_ARM_THUMB_IMM
2563 ENUMX
2564   BFD_RELOC_ARM_THUMB_SHIFT
2565 ENUMX
2566   BFD_RELOC_ARM_THUMB_OFFSET
2567 ENUMX
2568   BFD_RELOC_ARM_GOT12
2569 ENUMX
2570   BFD_RELOC_ARM_GOT32
2571 ENUMX
2572   BFD_RELOC_ARM_JUMP_SLOT
2573 ENUMX
2574   BFD_RELOC_ARM_COPY
2575 ENUMX
2576   BFD_RELOC_ARM_GLOB_DAT
2577 ENUMX
2578   BFD_RELOC_ARM_PLT32
2579 ENUMX
2580   BFD_RELOC_ARM_RELATIVE
2581 ENUMX
2582   BFD_RELOC_ARM_GOTOFF
2583 ENUMX
2584   BFD_RELOC_ARM_GOTPC
2585 ENUMDOC
2586   These relocs are only used within the ARM assembler.  They are not
2587   (at present) written to any object files.
2588
2589 ENUM
2590   BFD_RELOC_SH_PCDISP8BY2
2591 ENUMX
2592   BFD_RELOC_SH_PCDISP12BY2
2593 ENUMX
2594   BFD_RELOC_SH_IMM4
2595 ENUMX
2596   BFD_RELOC_SH_IMM4BY2
2597 ENUMX
2598   BFD_RELOC_SH_IMM4BY4
2599 ENUMX
2600   BFD_RELOC_SH_IMM8
2601 ENUMX
2602   BFD_RELOC_SH_IMM8BY2
2603 ENUMX
2604   BFD_RELOC_SH_IMM8BY4
2605 ENUMX
2606   BFD_RELOC_SH_PCRELIMM8BY2
2607 ENUMX
2608   BFD_RELOC_SH_PCRELIMM8BY4
2609 ENUMX
2610   BFD_RELOC_SH_SWITCH16
2611 ENUMX
2612   BFD_RELOC_SH_SWITCH32
2613 ENUMX
2614   BFD_RELOC_SH_USES
2615 ENUMX
2616   BFD_RELOC_SH_COUNT
2617 ENUMX
2618   BFD_RELOC_SH_ALIGN
2619 ENUMX
2620   BFD_RELOC_SH_CODE
2621 ENUMX
2622   BFD_RELOC_SH_DATA
2623 ENUMX
2624   BFD_RELOC_SH_LABEL
2625 ENUMX
2626   BFD_RELOC_SH_LOOP_START
2627 ENUMX
2628   BFD_RELOC_SH_LOOP_END
2629 ENUMX
2630   BFD_RELOC_SH_COPY
2631 ENUMX
2632   BFD_RELOC_SH_GLOB_DAT
2633 ENUMX
2634   BFD_RELOC_SH_JMP_SLOT
2635 ENUMX
2636   BFD_RELOC_SH_RELATIVE
2637 ENUMX
2638   BFD_RELOC_SH_GOTPC
2639 ENUMX
2640   BFD_RELOC_SH_GOT_LOW16
2641 ENUMX
2642   BFD_RELOC_SH_GOT_MEDLOW16
2643 ENUMX
2644   BFD_RELOC_SH_GOT_MEDHI16
2645 ENUMX
2646   BFD_RELOC_SH_GOT_HI16
2647 ENUMX
2648   BFD_RELOC_SH_GOTPLT_LOW16
2649 ENUMX
2650   BFD_RELOC_SH_GOTPLT_MEDLOW16
2651 ENUMX
2652   BFD_RELOC_SH_GOTPLT_MEDHI16
2653 ENUMX
2654   BFD_RELOC_SH_GOTPLT_HI16
2655 ENUMX
2656   BFD_RELOC_SH_PLT_LOW16
2657 ENUMX
2658   BFD_RELOC_SH_PLT_MEDLOW16
2659 ENUMX
2660   BFD_RELOC_SH_PLT_MEDHI16
2661 ENUMX
2662   BFD_RELOC_SH_PLT_HI16
2663 ENUMX
2664   BFD_RELOC_SH_GOTOFF_LOW16
2665 ENUMX
2666   BFD_RELOC_SH_GOTOFF_MEDLOW16
2667 ENUMX
2668   BFD_RELOC_SH_GOTOFF_MEDHI16
2669 ENUMX
2670   BFD_RELOC_SH_GOTOFF_HI16
2671 ENUMX
2672   BFD_RELOC_SH_GOTPC_LOW16
2673 ENUMX
2674   BFD_RELOC_SH_GOTPC_MEDLOW16
2675 ENUMX
2676   BFD_RELOC_SH_GOTPC_MEDHI16
2677 ENUMX
2678   BFD_RELOC_SH_GOTPC_HI16
2679 ENUMX
2680   BFD_RELOC_SH_COPY64
2681 ENUMX
2682   BFD_RELOC_SH_GLOB_DAT64
2683 ENUMX
2684   BFD_RELOC_SH_JMP_SLOT64
2685 ENUMX
2686   BFD_RELOC_SH_RELATIVE64
2687 ENUMX
2688   BFD_RELOC_SH_GOT10BY4
2689 ENUMX
2690   BFD_RELOC_SH_GOT10BY8
2691 ENUMX
2692   BFD_RELOC_SH_GOTPLT10BY4
2693 ENUMX
2694   BFD_RELOC_SH_GOTPLT10BY8
2695 ENUMX
2696   BFD_RELOC_SH_GOTPLT32
2697 ENUMX
2698   BFD_RELOC_SH_SHMEDIA_CODE
2699 ENUMX
2700   BFD_RELOC_SH_IMMU5
2701 ENUMX
2702   BFD_RELOC_SH_IMMS6
2703 ENUMX
2704   BFD_RELOC_SH_IMMS6BY32
2705 ENUMX
2706   BFD_RELOC_SH_IMMU6
2707 ENUMX
2708   BFD_RELOC_SH_IMMS10
2709 ENUMX
2710   BFD_RELOC_SH_IMMS10BY2
2711 ENUMX
2712   BFD_RELOC_SH_IMMS10BY4
2713 ENUMX
2714   BFD_RELOC_SH_IMMS10BY8
2715 ENUMX
2716   BFD_RELOC_SH_IMMS16
2717 ENUMX
2718   BFD_RELOC_SH_IMMU16
2719 ENUMX
2720   BFD_RELOC_SH_IMM_LOW16
2721 ENUMX
2722   BFD_RELOC_SH_IMM_LOW16_PCREL
2723 ENUMX
2724   BFD_RELOC_SH_IMM_MEDLOW16
2725 ENUMX
2726   BFD_RELOC_SH_IMM_MEDLOW16_PCREL
2727 ENUMX
2728   BFD_RELOC_SH_IMM_MEDHI16
2729 ENUMX
2730   BFD_RELOC_SH_IMM_MEDHI16_PCREL
2731 ENUMX
2732   BFD_RELOC_SH_IMM_HI16
2733 ENUMX
2734   BFD_RELOC_SH_IMM_HI16_PCREL
2735 ENUMX
2736   BFD_RELOC_SH_PT_16
2737 ENUMX
2738   BFD_RELOC_SH_TLS_GD_32
2739 ENUMX
2740   BFD_RELOC_SH_TLS_LD_32
2741 ENUMX
2742   BFD_RELOC_SH_TLS_LDO_32
2743 ENUMX
2744   BFD_RELOC_SH_TLS_IE_32
2745 ENUMX
2746   BFD_RELOC_SH_TLS_LE_32
2747 ENUMX
2748   BFD_RELOC_SH_TLS_DTPMOD32
2749 ENUMX
2750   BFD_RELOC_SH_TLS_DTPOFF32
2751 ENUMX
2752   BFD_RELOC_SH_TLS_TPOFF32
2753 ENUMDOC
2754   Renesas / SuperH SH relocs.  Not all of these appear in object files.
2755
2756 ENUM
2757   BFD_RELOC_THUMB_PCREL_BRANCH9
2758 ENUMX
2759   BFD_RELOC_THUMB_PCREL_BRANCH12
2760 ENUMX
2761   BFD_RELOC_THUMB_PCREL_BRANCH23
2762 ENUMDOC
2763   Thumb 23-, 12- and 9-bit pc-relative branches.  The lowest bit must
2764   be zero and is not stored in the instruction.
2765
2766 ENUM
2767   BFD_RELOC_ARC_B22_PCREL
2768 ENUMDOC
2769   ARC Cores relocs.
2770   ARC 22 bit pc-relative branch.  The lowest two bits must be zero and are
2771   not stored in the instruction.  The high 20 bits are installed in bits 26
2772   through 7 of the instruction.
2773 ENUM
2774   BFD_RELOC_ARC_B26
2775 ENUMDOC
2776   ARC 26 bit absolute branch.  The lowest two bits must be zero and are not
2777   stored in the instruction.  The high 24 bits are installed in bits 23
2778   through 0.
2779
2780 ENUM
2781   BFD_RELOC_D10V_10_PCREL_R
2782 ENUMDOC
2783   Mitsubishi D10V relocs.
2784   This is a 10-bit reloc with the right 2 bits
2785   assumed to be 0.
2786 ENUM
2787   BFD_RELOC_D10V_10_PCREL_L
2788 ENUMDOC
2789   Mitsubishi D10V relocs.
2790   This is a 10-bit reloc with the right 2 bits
2791   assumed to be 0.  This is the same as the previous reloc
2792   except it is in the left container, i.e.,
2793   shifted left 15 bits.
2794 ENUM
2795   BFD_RELOC_D10V_18
2796 ENUMDOC
2797   This is an 18-bit reloc with the right 2 bits
2798   assumed to be 0.
2799 ENUM
2800   BFD_RELOC_D10V_18_PCREL
2801 ENUMDOC
2802   This is an 18-bit reloc with the right 2 bits
2803   assumed to be 0.
2804
2805 ENUM
2806   BFD_RELOC_D30V_6
2807 ENUMDOC
2808   Mitsubishi D30V relocs.
2809   This is a 6-bit absolute reloc.
2810 ENUM
2811   BFD_RELOC_D30V_9_PCREL
2812 ENUMDOC
2813   This is a 6-bit pc-relative reloc with
2814   the right 3 bits assumed to be 0.
2815 ENUM
2816   BFD_RELOC_D30V_9_PCREL_R
2817 ENUMDOC
2818   This is a 6-bit pc-relative reloc with
2819   the right 3 bits assumed to be 0. Same
2820   as the previous reloc but on the right side
2821   of the container.
2822 ENUM
2823   BFD_RELOC_D30V_15
2824 ENUMDOC
2825   This is a 12-bit absolute reloc with the
2826   right 3 bitsassumed to be 0.
2827 ENUM
2828   BFD_RELOC_D30V_15_PCREL
2829 ENUMDOC
2830   This is a 12-bit pc-relative reloc with
2831   the right 3 bits assumed to be 0.
2832 ENUM
2833   BFD_RELOC_D30V_15_PCREL_R
2834 ENUMDOC
2835   This is a 12-bit pc-relative reloc with
2836   the right 3 bits assumed to be 0. Same
2837   as the previous reloc but on the right side
2838   of the container.
2839 ENUM
2840   BFD_RELOC_D30V_21
2841 ENUMDOC
2842   This is an 18-bit absolute reloc with
2843   the right 3 bits assumed to be 0.
2844 ENUM
2845   BFD_RELOC_D30V_21_PCREL
2846 ENUMDOC
2847   This is an 18-bit pc-relative reloc with
2848   the right 3 bits assumed to be 0.
2849 ENUM
2850   BFD_RELOC_D30V_21_PCREL_R
2851 ENUMDOC
2852   This is an 18-bit pc-relative reloc with
2853   the right 3 bits assumed to be 0. Same
2854   as the previous reloc but on the right side
2855   of the container.
2856 ENUM
2857   BFD_RELOC_D30V_32
2858 ENUMDOC
2859   This is a 32-bit absolute reloc.
2860 ENUM
2861   BFD_RELOC_D30V_32_PCREL
2862 ENUMDOC
2863   This is a 32-bit pc-relative reloc.
2864
2865 ENUM
2866   BFD_RELOC_DLX_HI16_S
2867 ENUMDOC
2868   DLX relocs
2869 ENUM
2870   BFD_RELOC_DLX_LO16
2871 ENUMDOC
2872   DLX relocs
2873 ENUM
2874   BFD_RELOC_DLX_JMP26
2875 ENUMDOC
2876   DLX relocs
2877
2878 ENUM
2879   BFD_RELOC_M32R_24
2880 ENUMDOC
2881   Renesas M32R (formerly Mitsubishi M32R) relocs.
2882   This is a 24 bit absolute address.
2883 ENUM
2884   BFD_RELOC_M32R_10_PCREL
2885 ENUMDOC
2886   This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0.
2887 ENUM
2888   BFD_RELOC_M32R_18_PCREL
2889 ENUMDOC
2890   This is an 18-bit reloc with the right 2 bits assumed to be 0.
2891 ENUM
2892   BFD_RELOC_M32R_26_PCREL
2893 ENUMDOC
2894   This is a 26-bit reloc with the right 2 bits assumed to be 0.
2895 ENUM
2896   BFD_RELOC_M32R_HI16_ULO
2897 ENUMDOC
2898   This is a 16-bit reloc containing the high 16 bits of an address
2899   used when the lower 16 bits are treated as unsigned.
2900 ENUM
2901   BFD_RELOC_M32R_HI16_SLO
2902 ENUMDOC
2903   This is a 16-bit reloc containing the high 16 bits of an address
2904   used when the lower 16 bits are treated as signed.
2905 ENUM
2906   BFD_RELOC_M32R_LO16
2907 ENUMDOC
2908   This is a 16-bit reloc containing the lower 16 bits of an address.
2909 ENUM
2910   BFD_RELOC_M32R_SDA16
2911 ENUMDOC
2912   This is a 16-bit reloc containing the small data area offset for use in
2913   add3, load, and store instructions.
2914
2915 ENUM
2916   BFD_RELOC_V850_9_PCREL
2917 ENUMDOC
2918   This is a 9-bit reloc
2919 ENUM
2920   BFD_RELOC_V850_22_PCREL
2921 ENUMDOC
2922   This is a 22-bit reloc
2923
2924 ENUM
2925   BFD_RELOC_V850_SDA_16_16_OFFSET
2926 ENUMDOC
2927   This is a 16 bit offset from the short data area pointer.
2928 ENUM
2929   BFD_RELOC_V850_SDA_15_16_OFFSET
2930 ENUMDOC
2931   This is a 16 bit offset (of which only 15 bits are used) from the
2932   short data area pointer.
2933 ENUM
2934   BFD_RELOC_V850_ZDA_16_16_OFFSET
2935 ENUMDOC
2936   This is a 16 bit offset from the zero data area pointer.
2937 ENUM
2938   BFD_RELOC_V850_ZDA_15_16_OFFSET
2939 ENUMDOC
2940   This is a 16 bit offset (of which only 15 bits are used) from the
2941   zero data area pointer.
2942 ENUM
2943   BFD_RELOC_V850_TDA_6_8_OFFSET
2944 ENUMDOC
2945   This is an 8 bit offset (of which only 6 bits are used) from the
2946   tiny data area pointer.
2947 ENUM
2948   BFD_RELOC_V850_TDA_7_8_OFFSET
2949 ENUMDOC
2950   This is an 8bit offset (of which only 7 bits are used) from the tiny
2951   data area pointer.
2952 ENUM
2953   BFD_RELOC_V850_TDA_7_7_OFFSET
2954 ENUMDOC
2955   This is a 7 bit offset from the tiny data area pointer.
2956 ENUM
2957   BFD_RELOC_V850_TDA_16_16_OFFSET
2958 ENUMDOC
2959   This is a 16 bit offset from the tiny data area pointer.
2960 COMMENT
2961 ENUM
2962   BFD_RELOC_V850_TDA_4_5_OFFSET
2963 ENUMDOC
2964   This is a 5 bit offset (of which only 4 bits are used) from the tiny
2965   data area pointer.
2966 ENUM
2967   BFD_RELOC_V850_TDA_4_4_OFFSET
2968 ENUMDOC
2969   This is a 4 bit offset from the tiny data area pointer.
2970 ENUM
2971   BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET
2972 ENUMDOC
2973   This is a 16 bit offset from the short data area pointer, with the
2974   bits placed non-contigously in the instruction.
2975 ENUM
2976   BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET
2977 ENUMDOC
2978   This is a 16 bit offset from the zero data area pointer, with the
2979   bits placed non-contigously in the instruction.
2980 ENUM
2981   BFD_RELOC_V850_CALLT_6_7_OFFSET
2982 ENUMDOC
2983   This is a 6 bit offset from the call table base pointer.
2984 ENUM
2985   BFD_RELOC_V850_CALLT_16_16_OFFSET
2986 ENUMDOC
2987   This is a 16 bit offset from the call table base pointer.
2988 ENUM
2989   BFD_RELOC_V850_LONGCALL
2990 ENUMDOC
2991   Used for relaxing indirect function calls.
2992 ENUM
2993   BFD_RELOC_V850_LONGJUMP
2994 ENUMDOC
2995   Used for relaxing indirect jumps.
2996 ENUM
2997   BFD_RELOC_V850_ALIGN
2998 ENUMDOC
2999   Used to maintain alignment whilst relaxing.
3000 ENUM
3001   BFD_RELOC_MN10300_32_PCREL
3002 ENUMDOC
3003   This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the
3004   instruction.
3005 ENUM
3006   BFD_RELOC_MN10300_16_PCREL
3007 ENUMDOC
3008   This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the
3009   instruction.
3010
3011 ENUM
3012   BFD_RELOC_TIC30_LDP
3013 ENUMDOC
3014   This is a 8bit DP reloc for the tms320c30, where the most
3015   significant 8 bits of a 24 bit word are placed into the least
3016   significant 8 bits of the opcode.
3017
3018 ENUM
3019   BFD_RELOC_TIC54X_PARTLS7
3020 ENUMDOC
3021   This is a 7bit reloc for the tms320c54x, where the least
3022   significant 7 bits of a 16 bit word are placed into the least
3023   significant 7 bits of the opcode.
3024
3025 ENUM
3026   BFD_RELOC_TIC54X_PARTMS9
3027 ENUMDOC
3028   This is a 9bit DP reloc for the tms320c54x, where the most
3029   significant 9 bits of a 16 bit word are placed into the least
3030   significant 9 bits of the opcode.
3031
3032 ENUM
3033   BFD_RELOC_TIC54X_23
3034 ENUMDOC
3035   This is an extended address 23-bit reloc for the tms320c54x.
3036
3037 ENUM
3038   BFD_RELOC_TIC54X_16_OF_23
3039 ENUMDOC
3040   This is a 16-bit reloc for the tms320c54x, where the least
3041   significant 16 bits of a 23-bit extended address are placed into
3042   the opcode.
3043
3044 ENUM
3045   BFD_RELOC_TIC54X_MS7_OF_23
3046 ENUMDOC
3047   This is a reloc for the tms320c54x, where the most
3048   significant 7 bits of a 23-bit extended address are placed into
3049   the opcode.
3050
3051 ENUM
3052   BFD_RELOC_FR30_48
3053 ENUMDOC
3054   This is a 48 bit reloc for the FR30 that stores 32 bits.
3055 ENUM
3056   BFD_RELOC_FR30_20
3057 ENUMDOC
3058   This is a 32 bit reloc for the FR30 that stores 20 bits split up into
3059   two sections.
3060 ENUM
3061   BFD_RELOC_FR30_6_IN_4
3062 ENUMDOC
3063   This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in
3064   4 bits.
3065 ENUM
3066   BFD_RELOC_FR30_8_IN_8
3067 ENUMDOC
3068   This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset
3069   into 8 bits.
3070 ENUM
3071   BFD_RELOC_FR30_9_IN_8
3072 ENUMDOC
3073   This is a 16 bit reloc for the FR30 that stores a 9 bit short offset
3074   into 8 bits.
3075 ENUM
3076   BFD_RELOC_FR30_10_IN_8
3077 ENUMDOC
3078   This is a 16 bit reloc for the FR30 that stores a 10 bit word offset
3079   into 8 bits.
3080 ENUM
3081   BFD_RELOC_FR30_9_PCREL
3082 ENUMDOC
3083   This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative
3084   short offset into 8 bits.
3085 ENUM
3086   BFD_RELOC_FR30_12_PCREL
3087 ENUMDOC
3088   This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative
3089   short offset into 11 bits.
3090
3091 ENUM
3092   BFD_RELOC_MCORE_PCREL_IMM8BY4
3093 ENUMX
3094   BFD_RELOC_MCORE_PCREL_IMM11BY2
3095 ENUMX
3096   BFD_RELOC_MCORE_PCREL_IMM4BY2
3097 ENUMX
3098   BFD_RELOC_MCORE_PCREL_32
3099 ENUMX
3100   BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2
3101 ENUMX
3102   BFD_RELOC_MCORE_RVA
3103 ENUMDOC
3104   Motorola Mcore relocations.
3105
3106 ENUM
3107   BFD_RELOC_MMIX_GETA
3108 ENUMX
3109   BFD_RELOC_MMIX_GETA_1
3110 ENUMX
3111   BFD_RELOC_MMIX_GETA_2
3112 ENUMX
3113   BFD_RELOC_MMIX_GETA_3
3114 ENUMDOC
3115   These are relocations for the GETA instruction.
3116 ENUM
3117   BFD_RELOC_MMIX_CBRANCH
3118 ENUMX
3119   BFD_RELOC_MMIX_CBRANCH_J
3120 ENUMX
3121   BFD_RELOC_MMIX_CBRANCH_1
3122 ENUMX
3123   BFD_RELOC_MMIX_CBRANCH_2
3124 ENUMX
3125   BFD_RELOC_MMIX_CBRANCH_3
3126 ENUMDOC
3127   These are relocations for a conditional branch instruction.
3128 ENUM
3129   BFD_RELOC_MMIX_PUSHJ
3130 ENUMX
3131   BFD_RELOC_MMIX_PUSHJ_1
3132 ENUMX
3133   BFD_RELOC_MMIX_PUSHJ_2
3134 ENUMX
3135   BFD_RELOC_MMIX_PUSHJ_3
3136 ENUMDOC
3137   These are relocations for the PUSHJ instruction.
3138 ENUM
3139   BFD_RELOC_MMIX_JMP
3140 ENUMX
3141   BFD_RELOC_MMIX_JMP_1
3142 ENUMX
3143   BFD_RELOC_MMIX_JMP_2
3144 ENUMX
3145   BFD_RELOC_MMIX_JMP_3
3146 ENUMDOC
3147   These are relocations for the JMP instruction.
3148 ENUM
3149   BFD_RELOC_MMIX_ADDR19
3150 ENUMDOC
3151   This is a relocation for a relative address as in a GETA instruction or
3152   a branch.
3153 ENUM
3154   BFD_RELOC_MMIX_ADDR27
3155 ENUMDOC
3156   This is a relocation for a relative address as in a JMP instruction.
3157 ENUM
3158   BFD_RELOC_MMIX_REG_OR_BYTE
3159 ENUMDOC
3160   This is a relocation for an instruction field that may be a general
3161   register or a value 0..255.
3162 ENUM
3163   BFD_RELOC_MMIX_REG
3164 ENUMDOC
3165   This is a relocation for an instruction field that may be a general
3166   register.
3167 ENUM
3168   BFD_RELOC_MMIX_BASE_PLUS_OFFSET
3169 ENUMDOC
3170   This is a relocation for two instruction fields holding a register and
3171   an offset, the equivalent of the relocation.
3172 ENUM
3173   BFD_RELOC_MMIX_LOCAL
3174 ENUMDOC
3175   This relocation is an assertion that the expression is not allocated as
3176   a global register.  It does not modify contents.
3177
3178 ENUM
3179   BFD_RELOC_AVR_7_PCREL
3180 ENUMDOC
3181   This is a 16 bit reloc for the AVR that stores 8 bit pc relative
3182   short offset into 7 bits.
3183 ENUM
3184   BFD_RELOC_AVR_13_PCREL
3185 ENUMDOC
3186   This is a 16 bit reloc for the AVR that stores 13 bit pc relative
3187   short offset into 12 bits.
3188 ENUM
3189   BFD_RELOC_AVR_16_PM
3190 ENUMDOC
3191   This is a 16 bit reloc for the AVR that stores 17 bit value (usually
3192   program memory address) into 16 bits.
3193 ENUM
3194   BFD_RELOC_AVR_LO8_LDI
3195 ENUMDOC
3196   This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3197   data memory address) into 8 bit immediate value of LDI insn.
3198 ENUM
3199   BFD_RELOC_AVR_HI8_LDI
3200 ENUMDOC
3201   This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3202   of data memory address) into 8 bit immediate value of LDI insn.
3203 ENUM
3204   BFD_RELOC_AVR_HH8_LDI
3205 ENUMDOC
3206   This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3207   of program memory address) into 8 bit immediate value of LDI insn.
3208 ENUM
3209   BFD_RELOC_AVR_LO8_LDI_NEG
3210 ENUMDOC
3211   This is a 16 bit reloc for the AVR that stores negated 8 bit value
3212   (usually data memory address) into 8 bit immediate value of SUBI insn.
3213 ENUM
3214   BFD_RELOC_AVR_HI8_LDI_NEG
3215 ENUMDOC
3216   This is a 16 bit reloc for the AVR that stores negated 8 bit value
3217   (high 8 bit of data memory address) into 8 bit immediate value of
3218   SUBI insn.
3219 ENUM
3220   BFD_RELOC_AVR_HH8_LDI_NEG
3221 ENUMDOC
3222   This is a 16 bit reloc for the AVR that stores negated 8 bit value
3223   (most high 8 bit of program memory address) into 8 bit immediate value
3224   of LDI or SUBI insn.
3225 ENUM
3226   BFD_RELOC_AVR_LO8_LDI_PM
3227 ENUMDOC
3228   This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3229   command address) into 8 bit immediate value of LDI insn.
3230 ENUM
3231   BFD_RELOC_AVR_HI8_LDI_PM
3232 ENUMDOC
3233   This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3234   of command address) into 8 bit immediate value of LDI insn.
3235 ENUM
3236   BFD_RELOC_AVR_HH8_LDI_PM
3237 ENUMDOC
3238   This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3239   of command address) into 8 bit immediate value of LDI insn.
3240 ENUM
3241   BFD_RELOC_AVR_LO8_LDI_PM_NEG
3242 ENUMDOC
3243   This is a 16 bit reloc for the AVR that stores negated 8 bit value
3244   (usually command address) into 8 bit immediate value of SUBI insn.
3245 ENUM
3246   BFD_RELOC_AVR_HI8_LDI_PM_NEG
3247 ENUMDOC
3248   This is a 16 bit reloc for the AVR that stores negated 8 bit value
3249   (high 8 bit of 16 bit command address) into 8 bit immediate value
3250   of SUBI insn.
3251 ENUM
3252   BFD_RELOC_AVR_HH8_LDI_PM_NEG
3253 ENUMDOC
3254   This is a 16 bit reloc for the AVR that stores negated 8 bit value
3255   (high 6 bit of 22 bit command address) into 8 bit immediate
3256   value of SUBI insn.
3257 ENUM
3258   BFD_RELOC_AVR_CALL
3259 ENUMDOC
3260   This is a 32 bit reloc for the AVR that stores 23 bit value
3261   into 22 bits.
3262
3263 ENUM
3264   BFD_RELOC_390_12
3265 ENUMDOC
3266    Direct 12 bit.
3267 ENUM
3268   BFD_RELOC_390_GOT12
3269 ENUMDOC
3270   12 bit GOT offset.
3271 ENUM
3272   BFD_RELOC_390_PLT32
3273 ENUMDOC
3274   32 bit PC relative PLT address.
3275 ENUM
3276   BFD_RELOC_390_COPY
3277 ENUMDOC
3278   Copy symbol at runtime.
3279 ENUM
3280   BFD_RELOC_390_GLOB_DAT
3281 ENUMDOC
3282   Create GOT entry.
3283 ENUM
3284   BFD_RELOC_390_JMP_SLOT
3285 ENUMDOC
3286   Create PLT entry.
3287 ENUM
3288   BFD_RELOC_390_RELATIVE
3289 ENUMDOC
3290   Adjust by program base.
3291 ENUM
3292   BFD_RELOC_390_GOTPC
3293 ENUMDOC
3294   32 bit PC relative offset to GOT.
3295 ENUM
3296   BFD_RELOC_390_GOT16
3297 ENUMDOC
3298   16 bit GOT offset.
3299 ENUM
3300   BFD_RELOC_390_PC16DBL
3301 ENUMDOC
3302   PC relative 16 bit shifted by 1.
3303 ENUM
3304   BFD_RELOC_390_PLT16DBL
3305 ENUMDOC
3306   16 bit PC rel. PLT shifted by 1.
3307 ENUM
3308   BFD_RELOC_390_PC32DBL
3309 ENUMDOC
3310   PC relative 32 bit shifted by 1.
3311 ENUM
3312   BFD_RELOC_390_PLT32DBL
3313 ENUMDOC
3314   32 bit PC rel. PLT shifted by 1.
3315 ENUM
3316   BFD_RELOC_390_GOTPCDBL
3317 ENUMDOC
3318   32 bit PC rel. GOT shifted by 1.
3319 ENUM
3320   BFD_RELOC_390_GOT64
3321 ENUMDOC
3322   64 bit GOT offset.
3323 ENUM
3324   BFD_RELOC_390_PLT64
3325 ENUMDOC
3326   64 bit PC relative PLT address.
3327 ENUM
3328   BFD_RELOC_390_GOTENT
3329 ENUMDOC
3330   32 bit rel. offset to GOT entry.
3331 ENUM
3332   BFD_RELOC_390_GOTOFF64
3333 ENUMDOC
3334   64 bit offset to GOT.
3335 ENUM
3336   BFD_RELOC_390_GOTPLT12
3337 ENUMDOC
3338   12-bit offset to symbol-entry within GOT, with PLT handling.
3339 ENUM
3340   BFD_RELOC_390_GOTPLT16
3341 ENUMDOC
3342   16-bit offset to symbol-entry within GOT, with PLT handling.
3343 ENUM
3344   BFD_RELOC_390_GOTPLT32
3345 ENUMDOC
3346   32-bit offset to symbol-entry within GOT, with PLT handling.
3347 ENUM
3348   BFD_RELOC_390_GOTPLT64
3349 ENUMDOC
3350   64-bit offset to symbol-entry within GOT, with PLT handling.
3351 ENUM
3352   BFD_RELOC_390_GOTPLTENT
3353 ENUMDOC
3354   32-bit rel. offset to symbol-entry within GOT, with PLT handling.
3355 ENUM
3356   BFD_RELOC_390_PLTOFF16
3357 ENUMDOC
3358   16-bit rel. offset from the GOT to a PLT entry.
3359 ENUM
3360   BFD_RELOC_390_PLTOFF32
3361 ENUMDOC
3362   32-bit rel. offset from the GOT to a PLT entry.
3363 ENUM
3364   BFD_RELOC_390_PLTOFF64
3365 ENUMDOC
3366   64-bit rel. offset from the GOT to a PLT entry.
3367
3368 ENUM
3369   BFD_RELOC_390_TLS_LOAD
3370 ENUMX
3371   BFD_RELOC_390_TLS_GDCALL
3372 ENUMX
3373   BFD_RELOC_390_TLS_LDCALL
3374 ENUMX
3375   BFD_RELOC_390_TLS_GD32
3376 ENUMX
3377   BFD_RELOC_390_TLS_GD64
3378 ENUMX
3379   BFD_RELOC_390_TLS_GOTIE12
3380 ENUMX
3381   BFD_RELOC_390_TLS_GOTIE32
3382 ENUMX
3383   BFD_RELOC_390_TLS_GOTIE64
3384 ENUMX
3385   BFD_RELOC_390_TLS_LDM32
3386 ENUMX
3387   BFD_RELOC_390_TLS_LDM64
3388 ENUMX
3389   BFD_RELOC_390_TLS_IE32
3390 ENUMX
3391   BFD_RELOC_390_TLS_IE64
3392 ENUMX
3393   BFD_RELOC_390_TLS_IEENT
3394 ENUMX
3395   BFD_RELOC_390_TLS_LE32
3396 ENUMX
3397   BFD_RELOC_390_TLS_LE64
3398 ENUMX
3399   BFD_RELOC_390_TLS_LDO32
3400 ENUMX
3401   BFD_RELOC_390_TLS_LDO64
3402 ENUMX
3403   BFD_RELOC_390_TLS_DTPMOD
3404 ENUMX
3405   BFD_RELOC_390_TLS_DTPOFF
3406 ENUMX
3407   BFD_RELOC_390_TLS_TPOFF
3408 ENUMDOC
3409   s390 tls relocations.
3410
3411 ENUM
3412   BFD_RELOC_390_20
3413 ENUMX
3414   BFD_RELOC_390_GOT20
3415 ENUMX
3416   BFD_RELOC_390_GOTPLT20
3417 ENUMX
3418   BFD_RELOC_390_TLS_GOTIE20
3419 ENUMDOC
3420   Long displacement extension.
3421
3422 ENUM
3423   BFD_RELOC_IP2K_FR9
3424 ENUMDOC
3425   Scenix IP2K - 9-bit register number / data address
3426 ENUM
3427   BFD_RELOC_IP2K_BANK
3428 ENUMDOC
3429   Scenix IP2K - 4-bit register/data bank number
3430 ENUM
3431   BFD_RELOC_IP2K_ADDR16CJP
3432 ENUMDOC
3433   Scenix IP2K - low 13 bits of instruction word address
3434 ENUM
3435   BFD_RELOC_IP2K_PAGE3
3436 ENUMDOC
3437   Scenix IP2K - high 3 bits of instruction word address
3438 ENUM
3439   BFD_RELOC_IP2K_LO8DATA
3440 ENUMX
3441   BFD_RELOC_IP2K_HI8DATA
3442 ENUMX
3443   BFD_RELOC_IP2K_EX8DATA
3444 ENUMDOC
3445   Scenix IP2K - ext/low/high 8 bits of data address
3446 ENUM
3447   BFD_RELOC_IP2K_LO8INSN
3448 ENUMX
3449   BFD_RELOC_IP2K_HI8INSN
3450 ENUMDOC
3451   Scenix IP2K - low/high 8 bits of instruction word address
3452 ENUM
3453   BFD_RELOC_IP2K_PC_SKIP
3454 ENUMDOC
3455   Scenix IP2K - even/odd PC modifier to modify snb pcl.0
3456 ENUM
3457   BFD_RELOC_IP2K_TEXT
3458 ENUMDOC
3459   Scenix IP2K - 16 bit word address in text section.
3460 ENUM
3461   BFD_RELOC_IP2K_FR_OFFSET
3462 ENUMDOC
3463   Scenix IP2K - 7-bit sp or dp offset
3464 ENUM
3465   BFD_RELOC_VPE4KMATH_DATA
3466 ENUMX
3467   BFD_RELOC_VPE4KMATH_INSN
3468 ENUMDOC
3469   Scenix VPE4K coprocessor - data/insn-space addressing
3470
3471 ENUM
3472   BFD_RELOC_VTABLE_INHERIT
3473 ENUMX
3474   BFD_RELOC_VTABLE_ENTRY
3475 ENUMDOC
3476   These two relocations are used by the linker to determine which of
3477   the entries in a C++ virtual function table are actually used.  When
3478   the --gc-sections option is given, the linker will zero out the entries
3479   that are not used, so that the code for those functions need not be
3480   included in the output.
3481
3482   VTABLE_INHERIT is a zero-space relocation used to describe to the
3483   linker the inheritence tree of a C++ virtual function table.  The
3484   relocation's symbol should be the parent class' vtable, and the
3485   relocation should be located at the child vtable.
3486
3487   VTABLE_ENTRY is a zero-space relocation that describes the use of a
3488   virtual function table entry.  The reloc's symbol should refer to the
3489   table of the class mentioned in the code.  Off of that base, an offset
3490   describes the entry that is being used.  For Rela hosts, this offset
3491   is stored in the reloc's addend.  For Rel hosts, we are forced to put
3492   this offset in the reloc's section offset.
3493
3494 ENUM
3495   BFD_RELOC_IA64_IMM14
3496 ENUMX
3497   BFD_RELOC_IA64_IMM22
3498 ENUMX
3499   BFD_RELOC_IA64_IMM64
3500 ENUMX
3501   BFD_RELOC_IA64_DIR32MSB
3502 ENUMX
3503   BFD_RELOC_IA64_DIR32LSB
3504 ENUMX
3505   BFD_RELOC_IA64_DIR64MSB
3506 ENUMX
3507   BFD_RELOC_IA64_DIR64LSB
3508 ENUMX
3509   BFD_RELOC_IA64_GPREL22
3510 ENUMX
3511   BFD_RELOC_IA64_GPREL64I
3512 ENUMX
3513   BFD_RELOC_IA64_GPREL32MSB
3514 ENUMX
3515   BFD_RELOC_IA64_GPREL32LSB
3516 ENUMX
3517   BFD_RELOC_IA64_GPREL64MSB
3518 ENUMX
3519   BFD_RELOC_IA64_GPREL64LSB
3520 ENUMX
3521   BFD_RELOC_IA64_LTOFF22
3522 ENUMX
3523   BFD_RELOC_IA64_LTOFF64I
3524 ENUMX
3525   BFD_RELOC_IA64_PLTOFF22
3526 ENUMX
3527   BFD_RELOC_IA64_PLTOFF64I
3528 ENUMX
3529   BFD_RELOC_IA64_PLTOFF64MSB
3530 ENUMX
3531   BFD_RELOC_IA64_PLTOFF64LSB
3532 ENUMX
3533   BFD_RELOC_IA64_FPTR64I
3534 ENUMX
3535   BFD_RELOC_IA64_FPTR32MSB
3536 ENUMX
3537   BFD_RELOC_IA64_FPTR32LSB
3538 ENUMX
3539   BFD_RELOC_IA64_FPTR64MSB
3540 ENUMX
3541   BFD_RELOC_IA64_FPTR64LSB
3542 ENUMX
3543   BFD_RELOC_IA64_PCREL21B
3544 ENUMX
3545   BFD_RELOC_IA64_PCREL21BI
3546 ENUMX
3547   BFD_RELOC_IA64_PCREL21M
3548 ENUMX
3549   BFD_RELOC_IA64_PCREL21F
3550 ENUMX
3551   BFD_RELOC_IA64_PCREL22
3552 ENUMX
3553   BFD_RELOC_IA64_PCREL60B
3554 ENUMX
3555   BFD_RELOC_IA64_PCREL64I
3556 ENUMX
3557   BFD_RELOC_IA64_PCREL32MSB
3558 ENUMX
3559   BFD_RELOC_IA64_PCREL32LSB
3560 ENUMX
3561   BFD_RELOC_IA64_PCREL64MSB
3562 ENUMX
3563   BFD_RELOC_IA64_PCREL64LSB
3564 ENUMX
3565   BFD_RELOC_IA64_LTOFF_FPTR22
3566 ENUMX
3567   BFD_RELOC_IA64_LTOFF_FPTR64I
3568 ENUMX
3569   BFD_RELOC_IA64_LTOFF_FPTR32MSB
3570 ENUMX
3571   BFD_RELOC_IA64_LTOFF_FPTR32LSB
3572 ENUMX
3573   BFD_RELOC_IA64_LTOFF_FPTR64MSB
3574 ENUMX
3575   BFD_RELOC_IA64_LTOFF_FPTR64LSB
3576 ENUMX
3577   BFD_RELOC_IA64_SEGREL32MSB
3578 ENUMX
3579   BFD_RELOC_IA64_SEGREL32LSB
3580 ENUMX
3581   BFD_RELOC_IA64_SEGREL64MSB
3582 ENUMX
3583   BFD_RELOC_IA64_SEGREL64LSB
3584 ENUMX
3585   BFD_RELOC_IA64_SECREL32MSB
3586 ENUMX
3587   BFD_RELOC_IA64_SECREL32LSB
3588 ENUMX
3589   BFD_RELOC_IA64_SECREL64MSB
3590 ENUMX
3591   BFD_RELOC_IA64_SECREL64LSB
3592 ENUMX
3593   BFD_RELOC_IA64_REL32MSB
3594 ENUMX
3595   BFD_RELOC_IA64_REL32LSB
3596 ENUMX
3597   BFD_RELOC_IA64_REL64MSB
3598 ENUMX
3599   BFD_RELOC_IA64_REL64LSB
3600 ENUMX
3601   BFD_RELOC_IA64_LTV32MSB
3602 ENUMX
3603   BFD_RELOC_IA64_LTV32LSB
3604 ENUMX
3605   BFD_RELOC_IA64_LTV64MSB
3606 ENUMX
3607   BFD_RELOC_IA64_LTV64LSB
3608 ENUMX
3609   BFD_RELOC_IA64_IPLTMSB
3610 ENUMX
3611   BFD_RELOC_IA64_IPLTLSB
3612 ENUMX
3613   BFD_RELOC_IA64_COPY
3614 ENUMX
3615   BFD_RELOC_IA64_LTOFF22X
3616 ENUMX
3617   BFD_RELOC_IA64_LDXMOV
3618 ENUMX
3619   BFD_RELOC_IA64_TPREL14
3620 ENUMX
3621   BFD_RELOC_IA64_TPREL22
3622 ENUMX
3623   BFD_RELOC_IA64_TPREL64I
3624 ENUMX
3625   BFD_RELOC_IA64_TPREL64MSB
3626 ENUMX
3627   BFD_RELOC_IA64_TPREL64LSB
3628 ENUMX
3629   BFD_RELOC_IA64_LTOFF_TPREL22
3630 ENUMX
3631   BFD_RELOC_IA64_DTPMOD64MSB
3632 ENUMX
3633   BFD_RELOC_IA64_DTPMOD64LSB
3634 ENUMX
3635   BFD_RELOC_IA64_LTOFF_DTPMOD22
3636 ENUMX
3637   BFD_RELOC_IA64_DTPREL14
3638 ENUMX
3639   BFD_RELOC_IA64_DTPREL22
3640 ENUMX
3641   BFD_RELOC_IA64_DTPREL64I
3642 ENUMX
3643   BFD_RELOC_IA64_DTPREL32MSB
3644 ENUMX
3645   BFD_RELOC_IA64_DTPREL32LSB
3646 ENUMX
3647   BFD_RELOC_IA64_DTPREL64MSB
3648 ENUMX
3649   BFD_RELOC_IA64_DTPREL64LSB
3650 ENUMX
3651   BFD_RELOC_IA64_LTOFF_DTPREL22
3652 ENUMDOC
3653   Intel IA64 Relocations.
3654
3655 ENUM
3656   BFD_RELOC_M68HC11_HI8
3657 ENUMDOC
3658   Motorola 68HC11 reloc.
3659   This is the 8 bit high part of an absolute address.
3660 ENUM
3661   BFD_RELOC_M68HC11_LO8
3662 ENUMDOC
3663   Motorola 68HC11 reloc.
3664   This is the 8 bit low part of an absolute address.
3665 ENUM
3666   BFD_RELOC_M68HC11_3B
3667 ENUMDOC
3668   Motorola 68HC11 reloc.
3669   This is the 3 bit of a value.
3670 ENUM
3671   BFD_RELOC_M68HC11_RL_JUMP
3672 ENUMDOC
3673   Motorola 68HC11 reloc.
3674   This reloc marks the beginning of a jump/call instruction.
3675   It is used for linker relaxation to correctly identify beginning
3676   of instruction and change some branchs to use PC-relative
3677   addressing mode.
3678 ENUM
3679   BFD_RELOC_M68HC11_RL_GROUP
3680 ENUMDOC
3681   Motorola 68HC11 reloc.
3682   This reloc marks a group of several instructions that gcc generates
3683   and for which the linker relaxation pass can modify and/or remove
3684   some of them.
3685 ENUM
3686   BFD_RELOC_M68HC11_LO16
3687 ENUMDOC
3688   Motorola 68HC11 reloc.
3689   This is the 16-bit lower part of an address.  It is used for 'call'
3690   instruction to specify the symbol address without any special
3691   transformation (due to memory bank window).
3692 ENUM
3693   BFD_RELOC_M68HC11_PAGE
3694 ENUMDOC
3695   Motorola 68HC11 reloc.
3696   This is a 8-bit reloc that specifies the page number of an address.
3697   It is used by 'call' instruction to specify the page number of
3698   the symbol.
3699 ENUM
3700   BFD_RELOC_M68HC11_24
3701 ENUMDOC
3702   Motorola 68HC11 reloc.
3703   This is a 24-bit reloc that represents the address with a 16-bit
3704   value and a 8-bit page number.  The symbol address is transformed
3705   to follow the 16K memory bank of 68HC12 (seen as mapped in the window).
3706
3707 ENUM
3708   BFD_RELOC_CRIS_BDISP8
3709 ENUMX
3710   BFD_RELOC_CRIS_UNSIGNED_5
3711 ENUMX
3712   BFD_RELOC_CRIS_SIGNED_6
3713 ENUMX
3714   BFD_RELOC_CRIS_UNSIGNED_6
3715 ENUMX
3716   BFD_RELOC_CRIS_UNSIGNED_4
3717 ENUMDOC
3718   These relocs are only used within the CRIS assembler.  They are not
3719   (at present) written to any object files.
3720 ENUM
3721   BFD_RELOC_CRIS_COPY
3722 ENUMX
3723   BFD_RELOC_CRIS_GLOB_DAT
3724 ENUMX
3725   BFD_RELOC_CRIS_JUMP_SLOT
3726 ENUMX
3727   BFD_RELOC_CRIS_RELATIVE
3728 ENUMDOC
3729   Relocs used in ELF shared libraries for CRIS.
3730 ENUM
3731   BFD_RELOC_CRIS_32_GOT
3732 ENUMDOC
3733   32-bit offset to symbol-entry within GOT.
3734 ENUM
3735   BFD_RELOC_CRIS_16_GOT
3736 ENUMDOC
3737   16-bit offset to symbol-entry within GOT.
3738 ENUM
3739   BFD_RELOC_CRIS_32_GOTPLT
3740 ENUMDOC
3741   32-bit offset to symbol-entry within GOT, with PLT handling.
3742 ENUM
3743   BFD_RELOC_CRIS_16_GOTPLT
3744 ENUMDOC
3745   16-bit offset to symbol-entry within GOT, with PLT handling.
3746 ENUM
3747   BFD_RELOC_CRIS_32_GOTREL
3748 ENUMDOC
3749   32-bit offset to symbol, relative to GOT.
3750 ENUM
3751   BFD_RELOC_CRIS_32_PLT_GOTREL
3752 ENUMDOC
3753   32-bit offset to symbol with PLT entry, relative to GOT.
3754 ENUM
3755   BFD_RELOC_CRIS_32_PLT_PCREL
3756 ENUMDOC
3757   32-bit offset to symbol with PLT entry, relative to this relocation.
3758
3759 ENUM
3760   BFD_RELOC_860_COPY
3761 ENUMX
3762   BFD_RELOC_860_GLOB_DAT
3763 ENUMX
3764   BFD_RELOC_860_JUMP_SLOT
3765 ENUMX
3766   BFD_RELOC_860_RELATIVE
3767 ENUMX
3768   BFD_RELOC_860_PC26
3769 ENUMX
3770   BFD_RELOC_860_PLT26
3771 ENUMX
3772   BFD_RELOC_860_PC16
3773 ENUMX
3774   BFD_RELOC_860_LOW0
3775 ENUMX
3776   BFD_RELOC_860_SPLIT0
3777 ENUMX
3778   BFD_RELOC_860_LOW1
3779 ENUMX
3780   BFD_RELOC_860_SPLIT1
3781 ENUMX
3782   BFD_RELOC_860_LOW2
3783 ENUMX
3784   BFD_RELOC_860_SPLIT2
3785 ENUMX
3786   BFD_RELOC_860_LOW3
3787 ENUMX
3788   BFD_RELOC_860_LOGOT0
3789 ENUMX
3790   BFD_RELOC_860_SPGOT0
3791 ENUMX
3792   BFD_RELOC_860_LOGOT1
3793 ENUMX
3794   BFD_RELOC_860_SPGOT1
3795 ENUMX
3796   BFD_RELOC_860_LOGOTOFF0
3797 ENUMX
3798   BFD_RELOC_860_SPGOTOFF0
3799 ENUMX
3800   BFD_RELOC_860_LOGOTOFF1
3801 ENUMX
3802   BFD_RELOC_860_SPGOTOFF1
3803 ENUMX
3804   BFD_RELOC_860_LOGOTOFF2
3805 ENUMX
3806   BFD_RELOC_860_LOGOTOFF3
3807 ENUMX
3808   BFD_RELOC_860_LOPC
3809 ENUMX
3810   BFD_RELOC_860_HIGHADJ
3811 ENUMX
3812   BFD_RELOC_860_HAGOT
3813 ENUMX
3814   BFD_RELOC_860_HAGOTOFF
3815 ENUMX
3816   BFD_RELOC_860_HAPC
3817 ENUMX
3818   BFD_RELOC_860_HIGH
3819 ENUMX
3820   BFD_RELOC_860_HIGOT
3821 ENUMX
3822   BFD_RELOC_860_HIGOTOFF
3823 ENUMDOC
3824   Intel i860 Relocations.
3825
3826 ENUM
3827   BFD_RELOC_OPENRISC_ABS_26
3828 ENUMX
3829   BFD_RELOC_OPENRISC_REL_26
3830 ENUMDOC
3831   OpenRISC Relocations.
3832
3833 ENUM
3834   BFD_RELOC_H8_DIR16A8
3835 ENUMX
3836   BFD_RELOC_H8_DIR16R8
3837 ENUMX
3838   BFD_RELOC_H8_DIR24A8
3839 ENUMX
3840   BFD_RELOC_H8_DIR24R8
3841 ENUMX
3842   BFD_RELOC_H8_DIR32A16
3843 ENUMDOC
3844   H8 elf Relocations.
3845
3846 ENUM
3847   BFD_RELOC_XSTORMY16_REL_12
3848 ENUMX
3849   BFD_RELOC_XSTORMY16_12
3850 ENUMX
3851   BFD_RELOC_XSTORMY16_24
3852 ENUMX
3853   BFD_RELOC_XSTORMY16_FPTR16
3854 ENUMDOC
3855   Sony Xstormy16 Relocations.
3856
3857 ENUM
3858   BFD_RELOC_VAX_GLOB_DAT
3859 ENUMX
3860   BFD_RELOC_VAX_JMP_SLOT
3861 ENUMX
3862   BFD_RELOC_VAX_RELATIVE
3863 ENUMDOC
3864   Relocations used by VAX ELF.
3865
3866 ENUM
3867   BFD_RELOC_MSP430_10_PCREL
3868 ENUMX
3869   BFD_RELOC_MSP430_16_PCREL
3870 ENUMX
3871   BFD_RELOC_MSP430_16
3872 ENUMX
3873   BFD_RELOC_MSP430_16_PCREL_BYTE
3874 ENUMX
3875   BFD_RELOC_MSP430_16_BYTE
3876 ENUMDOC
3877   msp430 specific relocation codes
3878
3879 ENUM
3880   BFD_RELOC_IQ2000_OFFSET_16
3881 ENUMX
3882   BFD_RELOC_IQ2000_OFFSET_21
3883 ENUMX
3884   BFD_RELOC_IQ2000_UHI16
3885 ENUMDOC
3886   IQ2000 Relocations.
3887
3888 ENUM
3889   BFD_RELOC_XTENSA_RTLD
3890 ENUMDOC
3891   Special Xtensa relocation used only by PLT entries in ELF shared
3892   objects to indicate that the runtime linker should set the value
3893   to one of its own internal functions or data structures.
3894 ENUM
3895   BFD_RELOC_XTENSA_GLOB_DAT
3896 ENUMX
3897   BFD_RELOC_XTENSA_JMP_SLOT
3898 ENUMX
3899   BFD_RELOC_XTENSA_RELATIVE
3900 ENUMDOC
3901   Xtensa relocations for ELF shared objects.
3902 ENUM
3903   BFD_RELOC_XTENSA_PLT
3904 ENUMDOC
3905   Xtensa relocation used in ELF object files for symbols that may require
3906   PLT entries.  Otherwise, this is just a generic 32-bit relocation.
3907 ENUM
3908   BFD_RELOC_XTENSA_OP0
3909 ENUMX
3910   BFD_RELOC_XTENSA_OP1
3911 ENUMX
3912   BFD_RELOC_XTENSA_OP2
3913 ENUMDOC
3914   Generic Xtensa relocations.  Only the operand number is encoded
3915   in the relocation.  The details are determined by extracting the
3916   instruction opcode.
3917 ENUM
3918   BFD_RELOC_XTENSA_ASM_EXPAND
3919 ENUMDOC
3920   Xtensa relocation to mark that the assembler expanded the
3921   instructions from an original target.  The expansion size is
3922   encoded in the reloc size.
3923 ENUM
3924   BFD_RELOC_XTENSA_ASM_SIMPLIFY
3925 ENUMDOC
3926   Xtensa relocation to mark that the linker should simplify
3927   assembler-expanded instructions.  This is commonly used
3928   internally by the linker after analysis of a
3929   BFD_RELOC_XTENSA_ASM_EXPAND.
3930
3931 ENDSENUM
3932   BFD_RELOC_UNUSED
3933 CODE_FRAGMENT
3934 .
3935 .typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
3936 */
3937
3938 /*
3939 FUNCTION
3940         bfd_reloc_type_lookup
3941
3942 SYNOPSIS
3943         reloc_howto_type *bfd_reloc_type_lookup
3944           (bfd *abfd, bfd_reloc_code_real_type code);
3945
3946 DESCRIPTION
3947         Return a pointer to a howto structure which, when
3948         invoked, will perform the relocation @var{code} on data from the
3949         architecture noted.
3950
3951 */
3952
3953 reloc_howto_type *
3954 bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
3955 {
3956   return BFD_SEND (abfd, reloc_type_lookup, (abfd, code));
3957 }
3958
3959 static reloc_howto_type bfd_howto_32 =
3960 HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE);
3961
3962 /*
3963 INTERNAL_FUNCTION
3964         bfd_default_reloc_type_lookup
3965
3966 SYNOPSIS
3967         reloc_howto_type *bfd_default_reloc_type_lookup
3968           (bfd *abfd, bfd_reloc_code_real_type  code);
3969
3970 DESCRIPTION
3971         Provides a default relocation lookup routine for any architecture.
3972
3973 */
3974
3975 reloc_howto_type *
3976 bfd_default_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
3977 {
3978   switch (code)
3979     {
3980     case BFD_RELOC_CTOR:
3981       /* The type of reloc used in a ctor, which will be as wide as the
3982          address - so either a 64, 32, or 16 bitter.  */
3983       switch (bfd_get_arch_info (abfd)->bits_per_address)
3984         {
3985         case 64:
3986           BFD_FAIL ();
3987         case 32:
3988           return &bfd_howto_32;
3989         case 16:
3990           BFD_FAIL ();
3991         default:
3992           BFD_FAIL ();
3993         }
3994     default:
3995       BFD_FAIL ();
3996     }
3997   return NULL;
3998 }
3999
4000 /*
4001 FUNCTION
4002         bfd_get_reloc_code_name
4003
4004 SYNOPSIS
4005         const char *bfd_get_reloc_code_name (bfd_reloc_code_real_type code);
4006
4007 DESCRIPTION
4008         Provides a printable name for the supplied relocation code.
4009         Useful mainly for printing error messages.
4010 */
4011
4012 const char *
4013 bfd_get_reloc_code_name (bfd_reloc_code_real_type code)
4014 {
4015   if (code > BFD_RELOC_UNUSED)
4016     return 0;
4017   return bfd_reloc_code_real_names[code];
4018 }
4019
4020 /*
4021 INTERNAL_FUNCTION
4022         bfd_generic_relax_section
4023
4024 SYNOPSIS
4025         bfd_boolean bfd_generic_relax_section
4026           (bfd *abfd,
4027            asection *section,
4028            struct bfd_link_info *,
4029            bfd_boolean *);
4030
4031 DESCRIPTION
4032         Provides default handling for relaxing for back ends which
4033         don't do relaxing -- i.e., does nothing.
4034 */
4035
4036 bfd_boolean
4037 bfd_generic_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
4038                            asection *section ATTRIBUTE_UNUSED,
4039                            struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
4040                            bfd_boolean *again)
4041 {
4042   *again = FALSE;
4043   return TRUE;
4044 }
4045
4046 /*
4047 INTERNAL_FUNCTION
4048         bfd_generic_gc_sections
4049
4050 SYNOPSIS
4051         bfd_boolean bfd_generic_gc_sections
4052           (bfd *, struct bfd_link_info *);
4053
4054 DESCRIPTION
4055         Provides default handling for relaxing for back ends which
4056         don't do section gc -- i.e., does nothing.
4057 */
4058
4059 bfd_boolean
4060 bfd_generic_gc_sections (bfd *abfd ATTRIBUTE_UNUSED,
4061                          struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
4062 {
4063   return TRUE;
4064 }
4065
4066 /*
4067 INTERNAL_FUNCTION
4068         bfd_generic_merge_sections
4069
4070 SYNOPSIS
4071         bfd_boolean bfd_generic_merge_sections
4072           (bfd *, struct bfd_link_info *);
4073
4074 DESCRIPTION
4075         Provides default handling for SEC_MERGE section merging for back ends
4076         which don't have SEC_MERGE support -- i.e., does nothing.
4077 */
4078
4079 bfd_boolean
4080 bfd_generic_merge_sections (bfd *abfd ATTRIBUTE_UNUSED,
4081                             struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
4082 {
4083   return TRUE;
4084 }
4085
4086 /*
4087 INTERNAL_FUNCTION
4088         bfd_generic_get_relocated_section_contents
4089
4090 SYNOPSIS
4091         bfd_byte *bfd_generic_get_relocated_section_contents
4092           (bfd *abfd,
4093            struct bfd_link_info *link_info,
4094            struct bfd_link_order *link_order,
4095            bfd_byte *data,
4096            bfd_boolean relocatable,
4097            asymbol **symbols);
4098
4099 DESCRIPTION
4100         Provides default handling of relocation effort for back ends
4101         which can't be bothered to do it efficiently.
4102
4103 */
4104
4105 bfd_byte *
4106 bfd_generic_get_relocated_section_contents (bfd *abfd,
4107                                             struct bfd_link_info *link_info,
4108                                             struct bfd_link_order *link_order,
4109                                             bfd_byte *data,
4110                                             bfd_boolean relocatable,
4111                                             asymbol **symbols)
4112 {
4113   /* Get enough memory to hold the stuff.  */
4114   bfd *input_bfd = link_order->u.indirect.section->owner;
4115   asection *input_section = link_order->u.indirect.section;
4116
4117   long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
4118   arelent **reloc_vector = NULL;
4119   long reloc_count;
4120
4121   if (reloc_size < 0)
4122     goto error_return;
4123
4124   reloc_vector = bfd_malloc (reloc_size);
4125   if (reloc_vector == NULL && reloc_size != 0)
4126     goto error_return;
4127
4128   /* Read in the section.  */
4129   if (!bfd_get_section_contents (input_bfd,
4130                                  input_section,
4131                                  data,
4132                                  0,
4133                                  input_section->_raw_size))
4134     goto error_return;
4135
4136   /* We're not relaxing the section, so just copy the size info.  */
4137   input_section->_cooked_size = input_section->_raw_size;
4138   input_section->reloc_done = TRUE;
4139
4140   reloc_count = bfd_canonicalize_reloc (input_bfd,
4141                                         input_section,
4142                                         reloc_vector,
4143                                         symbols);
4144   if (reloc_count < 0)
4145     goto error_return;
4146
4147   if (reloc_count > 0)
4148     {
4149       arelent **parent;
4150       for (parent = reloc_vector; *parent != NULL; parent++)
4151         {
4152           char *error_message = NULL;
4153           bfd_reloc_status_type r =
4154             bfd_perform_relocation (input_bfd,
4155                                     *parent,
4156                                     data,
4157                                     input_section,
4158                                     relocatable ? abfd : NULL,
4159                                     &error_message);
4160
4161           if (relocatable)
4162             {
4163               asection *os = input_section->output_section;
4164
4165               /* A partial link, so keep the relocs.  */
4166               os->orelocation[os->reloc_count] = *parent;
4167               os->reloc_count++;
4168             }
4169
4170           if (r != bfd_reloc_ok)
4171             {
4172               switch (r)
4173                 {
4174                 case bfd_reloc_undefined:
4175                   if (!((*link_info->callbacks->undefined_symbol)
4176                         (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4177                          input_bfd, input_section, (*parent)->address,
4178                          TRUE)))
4179                     goto error_return;
4180                   break;
4181                 case bfd_reloc_dangerous:
4182                   BFD_ASSERT (error_message != NULL);
4183                   if (!((*link_info->callbacks->reloc_dangerous)
4184                         (link_info, error_message, input_bfd, input_section,
4185                          (*parent)->address)))
4186                     goto error_return;
4187                   break;
4188                 case bfd_reloc_overflow:
4189                   if (!((*link_info->callbacks->reloc_overflow)
4190                         (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4191                          (*parent)->howto->name, (*parent)->addend,
4192                          input_bfd, input_section, (*parent)->address)))
4193                     goto error_return;
4194                   break;
4195                 case bfd_reloc_outofrange:
4196                 default:
4197                   abort ();
4198                   break;
4199                 }
4200
4201             }
4202         }
4203     }
4204   if (reloc_vector != NULL)
4205     free (reloc_vector);
4206   return data;
4207
4208 error_return:
4209   if (reloc_vector != NULL)
4210     free (reloc_vector);
4211   return NULL;
4212 }