bfd/aout-arm.c

   1 /* BFD back-end for raw ARM a.out binaries.
   2    Copyright 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005,
   3    2007, 2009, 2010, 2011 Free Software Foundation, Inc.
   4    Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
   5
   6    This file is part of BFD, the Binary File Descriptor library.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  21
  22 #include "sysdep.h"
  23 #include "bfd.h"
  24
  25 /* Avoid multiple definitions from aoutx if supporting standard a.out
  26    as well as our own.  */
  27 /* Do not "beautify" the CONCAT* macro args.  Traditional C will not
  28    remove whitespace added here, and thus will fail to concatenate
  29    the tokens.  */
  30 #define NAME(x,y) CONCAT3 (aoutarm,_32_,y)
  31
  32 #define N_TXTADDR(x)                                            \
  33   ((N_MAGIC (x) == NMAGIC)                                      \
  34    ? (bfd_vma) 0x8000                                           \
  35    : ((N_MAGIC (x) != ZMAGIC)                                   \
  36       ? (bfd_vma) 0                                             \
  37       : ((N_SHARED_LIB (x))                                     \
  38          ? ((x).a_entry & ~(bfd_vma) (TARGET_PAGE_SIZE - 1))    \
  39          : (bfd_vma) TEXT_START_ADDR)))
  40
  41 #define TEXT_START_ADDR 0x8000
  42 #define TARGET_PAGE_SIZE 0x8000
  43 #define SEGMENT_SIZE TARGET_PAGE_SIZE
  44 #define DEFAULT_ARCH bfd_arch_arm
  45
  46 #define MY(OP) CONCAT2 (aoutarm_,OP)
  47 #define N_BADMAG(x) ((((x).a_info & ~007200) != ZMAGIC) && \
  48                      (((x).a_info & ~006000) != OMAGIC) && \
  49                      ((x).a_info != NMAGIC))
  50 #define N_MAGIC(x) ((x).a_info & ~07200)
  51
  52 #define MY_bfd_reloc_type_lookup aoutarm_bfd_reloc_type_lookup
  53 #define MY_bfd_reloc_name_lookup aoutarm_bfd_reloc_name_lookup
  54
  55 #include "libaout.h"
  56 #include "aout/aout64.h"
  57
  58 \f
  59 static bfd_reloc_status_type
  60   MY (fix_pcrel_26) (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
  61 static bfd_reloc_status_type
  62   MY (fix_pcrel_26_done) (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
  63
  64 reloc_howto_type MY (howto_table)[] =
  65 {
  66   /* Type rs size bsz pcrel bitpos ovrf sf name part_inpl
  67      readmask setmask pcdone.  */
  68   HOWTO (0, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, 0, "8", TRUE,
  69          0x000000ff, 0x000000ff, FALSE),
  70   HOWTO (1, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, 0, "16", TRUE,
  71          0x0000ffff, 0x0000ffff, FALSE),
  72   HOWTO (2, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "32", TRUE,
  73          0xffffffff, 0xffffffff, FALSE),
  74   HOWTO (3, 2, 2, 26, TRUE, 0, complain_overflow_signed, MY (fix_pcrel_26),
  75          "ARM26", TRUE, 0x00ffffff, 0x00ffffff, TRUE),
  76   HOWTO (4, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0, "DISP8", TRUE,
  77          0x000000ff, 0x000000ff, TRUE),
  78   HOWTO (5, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0, "DISP16", TRUE,
  79          0x0000ffff, 0x0000ffff, TRUE),
  80   HOWTO (6, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0, "DISP32", TRUE,
  81          0xffffffff, 0xffffffff, TRUE),
  82   HOWTO (7, 2, 2, 26, FALSE, 0, complain_overflow_signed,
  83          MY (fix_pcrel_26_done), "ARM26D", TRUE, 0x0, 0x0,
  84          FALSE),
  85   EMPTY_HOWTO (-1),
  86   HOWTO (9, 0, -1, 16, FALSE, 0, complain_overflow_bitfield, 0, "NEG16", TRUE,
  87          0x0000ffff, 0x0000ffff, FALSE),
  88   HOWTO (10, 0, -2, 32, FALSE, 0, complain_overflow_bitfield, 0, "NEG32", TRUE,
  89          0xffffffff, 0xffffffff, FALSE)
  90 };
  91
  92 #define RELOC_ARM_BITS_NEG_BIG      ((unsigned int) 0x08)
  93 #define RELOC_ARM_BITS_NEG_LITTLE   ((unsigned int) 0x10)
  94
  95 static reloc_howto_type *
  96 MY (reloc_howto) (bfd *abfd,
  97                   struct reloc_std_external *rel,
  98                   int *r_index,
  99                   int *r_extern,
 100                   int *r_pcrel)
 101 {
 102   unsigned int r_length;
 103   unsigned int r_pcrel_done;
 104   unsigned int r_neg;
 105   int howto_index;
 106
 107   *r_pcrel = 0;
 108   if (bfd_header_big_endian (abfd))
 109     {
 110       *r_index     =  ((rel->r_index[0] << 16)
 111                        | (rel->r_index[1] << 8)
 112                        | rel->r_index[2]);
 113       *r_extern    = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
 114       r_pcrel_done = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
 115       r_neg        = (0 != (rel->r_type[0] & RELOC_ARM_BITS_NEG_BIG));
 116       r_length     = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
 117                       >> RELOC_STD_BITS_LENGTH_SH_BIG);
 118     }
 119   else
 120     {
 121       *r_index     = ((rel->r_index[2] << 16)
 122                       | (rel->r_index[1] << 8)
 123                       | rel->r_index[0]);
 124       *r_extern    = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
 125       r_pcrel_done = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
 126       r_neg        = (0 != (rel->r_type[0] & RELOC_ARM_BITS_NEG_LITTLE));
 127       r_length     = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
 128                       >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
 129     }
 130   howto_index = r_length + 4 * r_pcrel_done + 8 * r_neg;
 131   if (howto_index == 3)
 132     *r_pcrel = 1;
 133
 134   return MY (howto_table) + howto_index;
 135 }
 136
 137 #define MY_reloc_howto(BFD, REL, IN, EX, PC) \
 138         MY (reloc_howto) (BFD, REL, &IN, &EX, &PC)
 139
 140 static void
 141 MY (put_reloc) (bfd *abfd,
 142                 int r_extern,
 143                 int r_index,
 144                 bfd_vma value,
 145                 reloc_howto_type *howto,
 146                 struct reloc_std_external *reloc)
 147 {
 148   unsigned int r_length;
 149   int r_pcrel;
 150   int r_neg;
 151
 152   PUT_WORD (abfd, value, reloc->r_address);
 153   /* Size as a power of two.  */
 154   r_length = howto->size;
 155
 156   /* Special case for branch relocations.  */
 157   if (howto->type == 3 || howto->type == 7)
 158     r_length = 3;
 159
 160   r_pcrel  = howto->type & 4;   /* PC Relative done?  */
 161   r_neg = howto->type & 8;      /* Negative relocation.  */
 162
 163   if (bfd_header_big_endian (abfd))
 164     {
 165       reloc->r_index[0] = r_index >> 16;
 166       reloc->r_index[1] = r_index >> 8;
 167       reloc->r_index[2] = r_index;
 168       reloc->r_type[0] =
 169         ((r_extern ?     RELOC_STD_BITS_EXTERN_BIG : 0)
 170          | (r_pcrel ?    RELOC_STD_BITS_PCREL_BIG : 0)
 171          | (r_neg ?      RELOC_ARM_BITS_NEG_BIG : 0)
 172          | (r_length <<  RELOC_STD_BITS_LENGTH_SH_BIG));
 173     }
 174   else
 175     {
 176       reloc->r_index[2] = r_index >> 16;
 177       reloc->r_index[1] = r_index >> 8;
 178       reloc->r_index[0] = r_index;
 179       reloc->r_type[0] =
 180         ((r_extern ?     RELOC_STD_BITS_EXTERN_LITTLE : 0)
 181          | (r_pcrel ?    RELOC_STD_BITS_PCREL_LITTLE : 0)
 182          | (r_neg ?      RELOC_ARM_BITS_NEG_LITTLE : 0)
 183          | (r_length <<  RELOC_STD_BITS_LENGTH_SH_LITTLE));
 184     }
 185 }
 186
 187 #define MY_put_reloc(BFD, EXT, IDX, VAL, HOWTO, RELOC) \
 188   MY (put_reloc) (BFD, EXT, IDX, VAL, HOWTO, RELOC)
 189
 190 static void
 191 MY (relocatable_reloc) (reloc_howto_type *howto,
 192                         bfd *abfd,
 193                         struct reloc_std_external *reloc,
 194                         bfd_vma *amount,
 195                         bfd_vma r_addr)
 196 {
 197   if (howto->type == 3)
 198     {
 199       if (reloc->r_type[0]
 200           & (bfd_header_big_endian (abfd)
 201              ? RELOC_STD_BITS_EXTERN_BIG : RELOC_STD_BITS_EXTERN_LITTLE))
 202         /* The reloc is still external, so don't modify anything.  */
 203         *amount = 0;
 204       else
 205         {
 206           *amount -= r_addr;
 207           /* Change the r_pcrel value -- on the ARM, this bit is set once the
 208              relocation is done.  */
 209           if (bfd_header_big_endian (abfd))
 210             reloc->r_type[0] |= RELOC_STD_BITS_PCREL_BIG;
 211           else
 212             reloc->r_type[0] |= RELOC_STD_BITS_PCREL_LITTLE;
 213         }
 214     }
 215   else if (howto->type == 7)
 216     *amount = 0;
 217 }
 218
 219 #define MY_relocatable_reloc(HOW, BFD, REL, AMOUNT, ADDR) \
 220   MY (relocatable_reloc) (HOW, BFD, REL, &(AMOUNT), ADDR)
 221
 222 static bfd_reloc_status_type
 223 MY (fix_pcrel_26_done) (bfd *abfd ATTRIBUTE_UNUSED,
 224                         arelent *reloc_entry ATTRIBUTE_UNUSED,
 225                         asymbol *symbol ATTRIBUTE_UNUSED,
 226                         void * data ATTRIBUTE_UNUSED,
 227                         asection *input_section ATTRIBUTE_UNUSED,
 228                         bfd *output_bfd ATTRIBUTE_UNUSED,
 229                         char **error_message ATTRIBUTE_UNUSED)
 230 {
 231   /* This is dead simple at present.  */
 232   return bfd_reloc_ok;
 233 }
 234
 235 static bfd_reloc_status_type
 236 MY (fix_pcrel_26) (bfd *abfd,
 237                    arelent *reloc_entry,
 238                    asymbol *symbol,
 239                    void * data,
 240                    asection *input_section,
 241                    bfd *output_bfd,
 242                    char **error_message ATTRIBUTE_UNUSED)
 243 {
 244   bfd_vma relocation;
 245   bfd_size_type addr = reloc_entry->address;
 246   bfd_vma target = bfd_get_32 (abfd, (bfd_byte *) data + addr);
 247   bfd_reloc_status_type flag = bfd_reloc_ok;
 248
 249   /* If this is an undefined symbol, return error.  */
 250   if (symbol->section == &bfd_und_section
 251       && (symbol->flags & BSF_WEAK) == 0)
 252     return output_bfd ? bfd_reloc_ok : bfd_reloc_undefined;
 253
 254   /* If the sections are different, and we are doing a partial relocation,
 255      just ignore it for now.  */
 256   if (symbol->section->name != input_section->name
 257       && output_bfd != NULL)
 258     return bfd_reloc_ok;
 259
 260   relocation = (target & 0x00ffffff) << 2;
 261   relocation = (relocation ^ 0x02000000) - 0x02000000; /* Sign extend.  */
 262   relocation += symbol->value;
 263   relocation += symbol->section->output_section->vma;
 264   relocation += symbol->section->output_offset;
 265   relocation += reloc_entry->addend;
 266   relocation -= input_section->output_section->vma;
 267   relocation -= input_section->output_offset;
 268   relocation -= addr;
 269   if (relocation & 3)
 270     return bfd_reloc_overflow;
 271
 272   /* Check for overflow.  */
 273   if (relocation & 0x02000000)
 274     {
 275       if ((relocation & ~ (bfd_vma) 0x03ffffff) != ~ (bfd_vma) 0x03ffffff)
 276         flag = bfd_reloc_overflow;
 277     }
 278   else if (relocation & ~ (bfd_vma) 0x03ffffff)
 279     flag = bfd_reloc_overflow;
 280
 281   target &= ~ (bfd_vma) 0x00ffffff;
 282   target |= (relocation >> 2) & 0x00ffffff;
 283   bfd_put_32 (abfd, target, (bfd_byte *) data + addr);
 284
 285   /* Now the ARM magic... Change the reloc type so that it is marked as done.
 286      Strictly this is only necessary if we are doing a partial relocation.  */
 287   reloc_entry->howto = &MY (howto_table)[7];
 288
 289   return flag;
 290 }
 291
 292 static reloc_howto_type *
 293 MY (bfd_reloc_type_lookup) (bfd *abfd,
 294                             bfd_reloc_code_real_type code)
 295 {
 296 #define ASTD(i,j)       case i: return & MY (howto_table)[j]
 297
 298   if (code == BFD_RELOC_CTOR)
 299     switch (bfd_arch_bits_per_address (abfd))
 300       {
 301       case 32:
 302         code = BFD_RELOC_32;
 303         break;
 304       default:
 305         return NULL;
 306       }
 307
 308   switch (code)
 309     {
 310       ASTD (BFD_RELOC_16, 1);
 311       ASTD (BFD_RELOC_32, 2);
 312       ASTD (BFD_RELOC_ARM_PCREL_BRANCH, 3);
 313       ASTD (BFD_RELOC_8_PCREL, 4);
 314       ASTD (BFD_RELOC_16_PCREL, 5);
 315       ASTD (BFD_RELOC_32_PCREL, 6);
 316     default:
 317       return NULL;
 318     }
 319 }
 320
 321 static reloc_howto_type *
 322 MY (bfd_reloc_name_lookup) (bfd *abfd ATTRIBUTE_UNUSED,
 323                             const char *r_name)
 324 {
 325   unsigned int i;
 326
 327   for (i = 0;
 328        i < sizeof (MY (howto_table)) / sizeof (MY (howto_table)[0]);
 329        i++)
 330     if (MY (howto_table)[i].name != NULL
 331         && strcasecmp (MY (howto_table)[i].name, r_name) == 0)
 332       return &MY (howto_table)[i];
 333
 334   return NULL;
 335 }
 336
 337 #define MY_swap_std_reloc_in     MY (swap_std_reloc_in)
 338 #define MY_swap_std_reloc_out    MY (swap_std_reloc_out)
 339 #define MY_get_section_contents  _bfd_generic_get_section_contents
 340
 341 void MY_swap_std_reloc_in (bfd *, struct reloc_std_external *, arelent *, asymbol **, bfd_size_type);
 342 void MY_swap_std_reloc_out (bfd *, arelent *, struct reloc_std_external *);
 343
 344 #include "aoutx.h"
 345
 346 void
 347 MY_swap_std_reloc_in (bfd *abfd,
 348                       struct reloc_std_external *bytes,
 349                       arelent *cache_ptr,
 350                       asymbol **symbols,
 351                       bfd_size_type symcount ATTRIBUTE_UNUSED)
 352 {
 353   int r_index;
 354   int r_extern;
 355   int r_pcrel;
 356   struct aoutdata *su = &(abfd->tdata.aout_data->a);
 357
 358   cache_ptr->address = H_GET_32 (abfd, bytes->r_address);
 359
 360   cache_ptr->howto = MY_reloc_howto (abfd, bytes, r_index, r_extern, r_pcrel);
 361
 362   MOVE_ADDRESS (0);
 363 }
 364
 365 void
 366 MY_swap_std_reloc_out (bfd *abfd,
 367                        arelent *g,
 368                        struct reloc_std_external *natptr)
 369 {
 370   int r_index;
 371   asymbol *sym = *(g->sym_ptr_ptr);
 372   int r_extern;
 373   int r_length;
 374   int r_pcrel;
 375   int r_neg = 0;        /* Negative relocs use the BASEREL bit.  */
 376   asection *output_section = sym->section->output_section;
 377
 378   PUT_WORD (abfd, g->address, natptr->r_address);
 379
 380   r_length = g->howto->size ;   /* Size as a power of two.  */
 381   if (r_length < 0)
 382     {
 383       r_length = -r_length;
 384       r_neg = 1;
 385     }
 386
 387   r_pcrel  = (int) g->howto->pc_relative; /* Relative to PC?  */
 388
 389   /* For RISC iX, in pc-relative relocs the r_pcrel bit means that the
 390      relocation has been done already (Only for the 26-bit one I think).  */
 391   if (g->howto->type == 3)
 392     {
 393       r_length = 3;
 394       r_pcrel = 0;
 395     }
 396   else if (g->howto->type == 7)
 397     {
 398       r_length = 3;
 399       r_pcrel = 1;
 400     }
 401
 402   /* Name was clobbered by aout_write_syms to be symbol index.  */
 403
 404   /* If this relocation is relative to a symbol then set the
 405      r_index to the symbols index, and the r_extern bit.
 406
 407      Absolute symbols can come in in two ways, either as an offset
 408      from the abs section, or as a symbol which has an abs value.
 409      check for that here.  */
 410
 411   if (bfd_is_com_section (output_section)
 412       || output_section == &bfd_abs_section
 413       || output_section == &bfd_und_section)
 414     {
 415       if (bfd_abs_section.symbol == sym)
 416         {
 417           /* Whoops, looked like an abs symbol, but is really an offset
 418              from the abs section.  */
 419           r_index = 0;
 420           r_extern = 0;
 421         }
 422       else
 423         {
 424           /* Fill in symbol.  */
 425           r_extern = 1;
 426           r_index = (*(g->sym_ptr_ptr))->KEEPIT;
 427         }
 428     }
 429   else
 430     {
 431       /* Just an ordinary section.  */
 432       r_extern = 0;
 433       r_index  = output_section->target_index;
 434     }
 435
 436   /* Now the fun stuff.  */
 437   if (bfd_header_big_endian (abfd))
 438     {
 439       natptr->r_index[0] = r_index >> 16;
 440       natptr->r_index[1] = r_index >> 8;
 441       natptr->r_index[2] = r_index;
 442       natptr->r_type[0] =
 443         (  (r_extern ?   RELOC_STD_BITS_EXTERN_BIG: 0)
 444          | (r_pcrel  ?   RELOC_STD_BITS_PCREL_BIG: 0)
 445          | (r_neg    ?   RELOC_ARM_BITS_NEG_BIG: 0)
 446          | (r_length <<  RELOC_STD_BITS_LENGTH_SH_BIG));
 447     }
 448   else
 449     {
 450       natptr->r_index[2] = r_index >> 16;
 451       natptr->r_index[1] = r_index >> 8;
 452       natptr->r_index[0] = r_index;
 453       natptr->r_type[0] =
 454         (  (r_extern ?   RELOC_STD_BITS_EXTERN_LITTLE: 0)
 455          | (r_pcrel  ?   RELOC_STD_BITS_PCREL_LITTLE: 0)
 456          | (r_neg    ?   RELOC_ARM_BITS_NEG_LITTLE: 0)
 457          | (r_length <<  RELOC_STD_BITS_LENGTH_SH_LITTLE));
 458     }
 459 }
 460
 461 #define MY_BFD_TARGET
 462
 463 #include "aout-target.h"
 464
 465 extern const bfd_target aout_arm_big_vec;
 466
 467 const bfd_target aout_arm_little_vec =
 468 {
 469   "a.out-arm-little",           /* Name.  */
 470   bfd_target_aout_flavour,
 471   BFD_ENDIAN_LITTLE,            /* Target byte order (little).  */
 472   BFD_ENDIAN_LITTLE,            /* Target headers byte order (little).  */
 473   (HAS_RELOC | EXEC_P |         /* Object flags.  */
 474    HAS_LINENO | HAS_DEBUG |
 475    HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
 476   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
 477   MY_symbol_leading_char,
 478   AR_PAD_CHAR,                  /* AR_pad_char.  */
 479   15,                           /* AR_max_namelen.  */
 480   0,                            /* match priority.  */
 481   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 482   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 483   bfd_getl16, bfd_getl_signed_16, bfd_putl16,   /* Data.  */
 484   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 485   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 486   bfd_getl16, bfd_getl_signed_16, bfd_putl16,   /* Headers.  */
 487   {_bfd_dummy_target, MY_object_p,              /* bfd_check_format.  */
 488    bfd_generic_archive_p, MY_core_file_p},
 489   {bfd_false, MY_mkobject,                      /* bfd_set_format.  */
 490    _bfd_generic_mkarchive, bfd_false},
 491   {bfd_false, MY_write_object_contents,         /* bfd_write_contents.  */
 492    _bfd_write_archive_contents, bfd_false},
 493
 494   BFD_JUMP_TABLE_GENERIC (MY),
 495   BFD_JUMP_TABLE_COPY (MY),
 496   BFD_JUMP_TABLE_CORE (MY),
 497   BFD_JUMP_TABLE_ARCHIVE (MY),
 498   BFD_JUMP_TABLE_SYMBOLS (MY),
 499   BFD_JUMP_TABLE_RELOCS (MY),
 500   BFD_JUMP_TABLE_WRITE (MY),
 501   BFD_JUMP_TABLE_LINK (MY),
 502   BFD_JUMP_TABLE_DYNAMIC (MY),
 503
 504   & aout_arm_big_vec,
 505
 506   (void *) MY_backend_data,
 507 };
 508
 509 const bfd_target aout_arm_big_vec =
 510 {
 511   "a.out-arm-big",              /* Name.  */
 512   bfd_target_aout_flavour,
 513   BFD_ENDIAN_BIG,               /* Target byte order (big).  */
 514   BFD_ENDIAN_BIG,               /* Target headers byte order (big).  */
 515   (HAS_RELOC | EXEC_P |         /* Object flags.  */
 516    HAS_LINENO | HAS_DEBUG |
 517    HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
 518   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
 519   MY_symbol_leading_char,
 520   AR_PAD_CHAR,                  /* AR_pad_char.  */
 521   15,                           /* AR_max_namelen.  */
 522   0,                            /* match priority.  */
 523   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 524   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 525   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Data.  */
 526   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 527   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 528   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Headers.  */
 529   {_bfd_dummy_target, MY_object_p,              /* bfd_check_format.  */
 530    bfd_generic_archive_p, MY_core_file_p},
 531   {bfd_false, MY_mkobject,                      /* bfd_set_format.  */
 532    _bfd_generic_mkarchive, bfd_false},
 533   {bfd_false, MY_write_object_contents,         /* bfd_write_contents.  */
 534    _bfd_write_archive_contents, bfd_false},
 535
 536   BFD_JUMP_TABLE_GENERIC (MY),
 537   BFD_JUMP_TABLE_COPY (MY),
 538   BFD_JUMP_TABLE_CORE (MY),
 539   BFD_JUMP_TABLE_ARCHIVE (MY),
 540   BFD_JUMP_TABLE_SYMBOLS (MY),
 541   BFD_JUMP_TABLE_RELOCS (MY),
 542   BFD_JUMP_TABLE_WRITE (MY),
 543   BFD_JUMP_TABLE_LINK (MY),
 544   BFD_JUMP_TABLE_DYNAMIC (MY),
 545
 546   & aout_arm_little_vec,
 547
 548   (void *) MY_backend_data,
 549 };