bfd/aout-arm.c

   1 /* BFD back-end for raw ARM a.out binaries.
   2    Copyright (C) 1994, 95, 96, 97, 98, 1999 Free Software Foundation, Inc.
   3    Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
   4
   5 This file is part of BFD, the Binary File Descriptor library.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 #define N_TXTADDR(x) \
  22   ((N_MAGIC(x) == NMAGIC) ? 0x8000 : \
  23    (N_MAGIC(x) != ZMAGIC) ? 0 : \
  24    (N_SHARED_LIB(x)) ? ((x).a_entry & ~(TARGET_PAGE_SIZE - 1)) : \
  25    TEXT_START_ADDR)
  26
  27 #define TEXT_START_ADDR 0x8000
  28 #define TARGET_PAGE_SIZE 0x8000
  29 #define SEGMENT_SIZE TARGET_PAGE_SIZE
  30 #define DEFAULT_ARCH bfd_arch_arm
  31
  32 #define MY(OP) CAT(aoutarm_,OP)
  33 #define N_BADMAG(x) ((((x).a_info & ~007200) != ZMAGIC) && \
  34                      (((x).a_info & ~006000) != OMAGIC) && \
  35                      ((x).a_info != NMAGIC))
  36 #define N_MAGIC(x) ((x).a_info & ~07200)
  37
  38 #include "bfd.h"
  39 #include "sysdep.h"
  40
  41 #define MYARM(OP) CAT(aoutarm_,OP)
  42 reloc_howto_type        *MYARM(bfd_reloc_type_lookup)
  43                                 PARAMS((bfd *, bfd_reloc_code_real_type));
  44 static boolean          MYARM(write_object_contents)    PARAMS((bfd *));
  45
  46 /* Avoid multiple defininitions from aoutx if supporting standarad a.out
  47    as well as our own.  */
  48 #define NAME(x,y) CAT3(aoutarm,_32_,y)
  49
  50 #define MY_bfd_reloc_type_lookup aoutarm_bfd_reloc_type_lookup
  51
  52 #include "libaout.h"
  53 #include "aout/aout64.h"
  54
  55 static bfd_reloc_status_type
  56 MY(fix_pcrel_26_done)   PARAMS ((bfd *, arelent *, asymbol *, PTR,
  57                                  asection *, bfd *, char **));
  58
  59 static bfd_reloc_status_type
  60 MY(fix_pcrel_26)         PARAMS ((bfd *, arelent *, asymbol *, PTR,
  61                                   asection *, bfd *, char **));
  62 static void MY(swap_std_reloc_in) PARAMS ((bfd *, struct reloc_std_external *,
  63                                            arelent *, asymbol **,
  64                                            bfd_size_type));
  65 void MY(swap_std_reloc_out) PARAMS ((bfd *, arelent *,
  66                                      struct reloc_std_external *));
  67
  68 reloc_howto_type MY(howto_table)[] =
  69 {
  70   /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask
  71      pcdone */
  72   HOWTO (0, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "8", true,
  73          0x000000ff, 0x000000ff, false),
  74   HOWTO (1, 0, 1, 16, false, 0, complain_overflow_bitfield, 0, "16", true,
  75          0x0000ffff, 0x0000ffff, false),
  76   HOWTO (2, 0, 2, 32, false, 0, complain_overflow_bitfield, 0, "32", true,
  77          0xffffffff, 0xffffffff, false),
  78   HOWTO (3, 2, 2, 26, true, 0, complain_overflow_signed, MY(fix_pcrel_26),
  79          "ARM26", true, 0x00ffffff, 0x00ffffff, true),
  80   HOWTO (4, 0, 0, 8, true, 0, complain_overflow_signed, 0, "DISP8", true,
  81          0x000000ff, 0x000000ff, true),
  82   HOWTO (5, 0, 1, 16, true, 0, complain_overflow_signed, 0, "DISP16", true,
  83          0x0000ffff, 0x0000ffff, true),
  84   HOWTO (6, 0, 2, 32, true, 0, complain_overflow_signed, 0, "DISP32", true,
  85          0xffffffff, 0xffffffff, true),
  86   HOWTO (7, 2, 2, 26, false, 0, complain_overflow_signed,
  87          MY(fix_pcrel_26_done), "ARM26D", true, 0x0, 0x0,
  88          false),
  89   EMPTY_HOWTO (-1),
  90   HOWTO (9, 0, -1, 16, false, 0, complain_overflow_bitfield, 0, "NEG16", true,
  91          0x0000ffff, 0x0000ffff, false),
  92   HOWTO (10, 0, -2, 32, false, 0, complain_overflow_bitfield, 0, "NEG32", true,
  93          0xffffffff, 0xffffffff, false)
  94 };
  95
  96 #define RELOC_ARM_BITS_NEG_BIG      ((unsigned int) 0x08)
  97 #define RELOC_ARM_BITS_NEG_LITTLE   ((unsigned int) 0x10)
  98
  99 reloc_howto_type *
 100 MY(reloc_howto) (abfd, rel, r_index, r_extern, r_pcrel)
 101      bfd *abfd;
 102      struct reloc_std_external *rel;
 103      int *r_index;
 104      int *r_extern;
 105      int *r_pcrel;
 106 {
 107   unsigned int r_length;
 108   unsigned int r_pcrel_done;
 109   unsigned int r_neg;
 110   int index;
 111
 112   *r_pcrel = 0;
 113   if (bfd_header_big_endian (abfd))
 114     {
 115       *r_index     =  ((rel->r_index[0] << 16)
 116                        | (rel->r_index[1] << 8)
 117                        | rel->r_index[2]);
 118       *r_extern    = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
 119       r_pcrel_done = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
 120       r_neg        = (0 != (rel->r_type[0] & RELOC_ARM_BITS_NEG_BIG));
 121       r_length     = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
 122                       >> RELOC_STD_BITS_LENGTH_SH_BIG);
 123     }
 124   else
 125     {
 126       *r_index     = ((rel->r_index[2] << 16)
 127                       | (rel->r_index[1] << 8)
 128                       | rel->r_index[0]);
 129       *r_extern    = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
 130       r_pcrel_done = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
 131       r_neg        = (0 != (rel->r_type[0] & RELOC_ARM_BITS_NEG_LITTLE));
 132       r_length     = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
 133                       >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
 134     }
 135   index = r_length + 4 * r_pcrel_done + 8 * r_neg;
 136   if (index == 3)
 137     *r_pcrel = 1;
 138
 139   return MY(howto_table) + index;
 140 }
 141
 142 #define MY_reloc_howto(BFD, REL, IN, EX, PC) \
 143         MY(reloc_howto) (BFD, REL, &IN, &EX, &PC)
 144
 145 void
 146 MY(put_reloc) (abfd, r_extern, r_index, value, howto, reloc)
 147      bfd *abfd;
 148      int r_extern;
 149      int r_index;
 150      long value;
 151      reloc_howto_type *howto;
 152      struct reloc_std_external *reloc;
 153 {
 154   unsigned int r_length;
 155   int r_pcrel;
 156   int r_neg;
 157
 158   PUT_WORD (abfd, value, reloc->r_address);
 159   r_length = howto->size ;      /* Size as a power of two */
 160
 161   /* Special case for branch relocations.  */
 162   if (howto->type == 3 || howto->type == 7)
 163     r_length = 3;
 164
 165   r_pcrel  = howto->type & 4;   /* PC Relative done? */
 166   r_neg = howto->type & 8;      /* Negative relocation */
 167   if (bfd_header_big_endian (abfd))
 168     {
 169       reloc->r_index[0] = r_index >> 16;
 170       reloc->r_index[1] = r_index >> 8;
 171       reloc->r_index[2] = r_index;
 172       reloc->r_type[0] =
 173         ((r_extern ?     RELOC_STD_BITS_EXTERN_BIG : 0)
 174          | (r_pcrel ?    RELOC_STD_BITS_PCREL_BIG : 0)
 175          | (r_neg ?      RELOC_ARM_BITS_NEG_BIG : 0)
 176          | (r_length <<  RELOC_STD_BITS_LENGTH_SH_BIG));
 177     }
 178   else
 179     {
 180       reloc->r_index[2] = r_index >> 16;
 181       reloc->r_index[1] = r_index >> 8;
 182       reloc->r_index[0] = r_index;
 183       reloc->r_type[0] =
 184         ((r_extern ?     RELOC_STD_BITS_EXTERN_LITTLE : 0)
 185          | (r_pcrel ?    RELOC_STD_BITS_PCREL_LITTLE : 0)
 186          | (r_neg ?      RELOC_ARM_BITS_NEG_LITTLE : 0)
 187          | (r_length <<  RELOC_STD_BITS_LENGTH_SH_LITTLE));
 188     }
 189 }
 190
 191 #define MY_put_reloc(BFD, EXT, IDX, VAL, HOWTO, RELOC) \
 192   MY(put_reloc) (BFD, EXT, IDX, VAL, HOWTO, RELOC)
 193
 194 void
 195 MY(relocatable_reloc) (howto, abfd, reloc, amount, r_addr)
 196      reloc_howto_type *howto;
 197      bfd *abfd;
 198      struct reloc_std_external *reloc;
 199      bfd_vma *amount;
 200      bfd_vma r_addr;
 201 {
 202   if (howto->type == 3)
 203     {
 204       if (reloc->r_type[0]
 205           & (bfd_header_big_endian (abfd)
 206              ? RELOC_STD_BITS_EXTERN_BIG : RELOC_STD_BITS_EXTERN_LITTLE))
 207         {
 208           /* The reloc is still external, so don't modify anything.  */
 209           *amount = 0;
 210         }
 211       else
 212         {
 213           *amount -= r_addr;
 214           /* Change the r_pcrel value -- on the ARM, this bit is set once the
 215              relocation is done.  */
 216           if (bfd_header_big_endian (abfd))
 217             reloc->r_type[0] |= RELOC_STD_BITS_PCREL_BIG;
 218           else
 219             reloc->r_type[0] |= RELOC_STD_BITS_PCREL_LITTLE;
 220         }
 221     }
 222   else if (howto->type == 7)
 223     *amount = 0;
 224 }
 225
 226 #define MY_relocatable_reloc(HOW, BFD, REL, AMOUNT, ADDR) \
 227   MY(relocatable_reloc) (HOW, BFD, REL, &(AMOUNT), ADDR)
 228
 229 static bfd_reloc_status_type
 230 MY(fix_pcrel_26_done) (abfd, reloc_entry, symbol, data, input_section,
 231                        output_bfd, error_message)
 232      bfd *abfd ATTRIBUTE_UNUSED;
 233      arelent *reloc_entry ATTRIBUTE_UNUSED;
 234      asymbol *symbol ATTRIBUTE_UNUSED;
 235      PTR data ATTRIBUTE_UNUSED;
 236      asection *input_section ATTRIBUTE_UNUSED;
 237      bfd *output_bfd ATTRIBUTE_UNUSED;
 238      char **error_message ATTRIBUTE_UNUSED;
 239 {
 240   /* This is dead simple at present.  */
 241   return bfd_reloc_ok;
 242 }
 243
 244 static bfd_reloc_status_type
 245 MY(fix_pcrel_26) (abfd, reloc_entry, symbol, data, input_section,
 246                   output_bfd, error_message)
 247      bfd *abfd;
 248      arelent *reloc_entry;
 249      asymbol *symbol;
 250      PTR data;
 251      asection *input_section;
 252      bfd *output_bfd;
 253      char **error_message ATTRIBUTE_UNUSED;
 254 {
 255   bfd_vma relocation;
 256   bfd_size_type addr = reloc_entry->address;
 257   long target = bfd_get_32 (abfd, (bfd_byte *) data + addr);
 258   bfd_reloc_status_type flag = bfd_reloc_ok;
 259
 260   /* If this is an undefined symbol, return error */
 261   if (symbol->section == &bfd_und_section
 262       && (symbol->flags & BSF_WEAK) == 0)
 263     return output_bfd ? bfd_reloc_ok : bfd_reloc_undefined;
 264
 265   /* If the sections are different, and we are doing a partial relocation,
 266      just ignore it for now.  */
 267   if (symbol->section->name != input_section->name
 268       && output_bfd != (bfd *)NULL)
 269     return bfd_reloc_ok;
 270
 271   relocation = (target & 0x00ffffff) << 2;
 272   relocation = (relocation ^ 0x02000000) - 0x02000000; /* Sign extend */
 273   relocation += symbol->value;
 274   relocation += symbol->section->output_section->vma;
 275   relocation += symbol->section->output_offset;
 276   relocation += reloc_entry->addend;
 277   relocation -= input_section->output_section->vma;
 278   relocation -= input_section->output_offset;
 279   relocation -= addr;
 280   if (relocation & 3)
 281     return bfd_reloc_overflow;
 282
 283   /* Check for overflow */
 284   if (relocation & 0x02000000)
 285     {
 286       if ((relocation & ~ (bfd_vma) 0x03ffffff) != ~ (bfd_vma) 0x03ffffff)
 287         flag = bfd_reloc_overflow;
 288     }
 289   else if (relocation & ~0x03ffffff)
 290     flag = bfd_reloc_overflow;
 291
 292   target &= ~0x00ffffff;
 293   target |= (relocation >> 2) & 0x00ffffff;
 294   bfd_put_32 (abfd, target, (bfd_byte *) data + addr);
 295
 296   /* Now the ARM magic... Change the reloc type so that it is marked as done.
 297      Strictly this is only necessary if we are doing a partial relocation.  */
 298   reloc_entry->howto = &MY(howto_table)[7];
 299
 300   return flag;
 301 }
 302
 303 reloc_howto_type *
 304 MY(bfd_reloc_type_lookup) (abfd,code)
 305      bfd *abfd;
 306      bfd_reloc_code_real_type code;
 307 {
 308 #define ASTD(i,j)       case i: return &MY(howto_table)[j]
 309   if (code == BFD_RELOC_CTOR)
 310     switch (bfd_get_arch_info (abfd)->bits_per_address)
 311       {
 312       case 32:
 313         code = BFD_RELOC_32;
 314         break;
 315       default: return (CONST struct reloc_howto_struct *) 0;
 316       }
 317
 318   switch (code)
 319     {
 320       ASTD (BFD_RELOC_16, 1);
 321       ASTD (BFD_RELOC_32, 2);
 322       ASTD (BFD_RELOC_ARM_PCREL_BRANCH, 3);
 323       ASTD (BFD_RELOC_8_PCREL, 4);
 324       ASTD (BFD_RELOC_16_PCREL, 5);
 325       ASTD (BFD_RELOC_32_PCREL, 6);
 326     default: return (CONST struct reloc_howto_struct *) 0;
 327     }
 328 }
 329
 330 #define MY_swap_std_reloc_in MY(swap_std_reloc_in)
 331 #define MY_swap_std_reloc_out MY(swap_std_reloc_out)
 332 #define MY_get_section_contents _bfd_generic_get_section_contents
 333 /* #define MY_bfd_link_hash_table_create _bfd_generic_link_hash_table_create */
 334 /* #define MY_bfd_link_add_symbols _bfd_generic_link_add_symbols */
 335 /* #define MY_bfd_final_link _bfd_generic_final_link */
 336
 337 #include "aoutx.h"
 338
 339 static void
 340 MY_swap_std_reloc_in (abfd, bytes, cache_ptr, symbols, symcount)
 341      bfd *abfd;
 342      struct reloc_std_external *bytes;
 343      arelent *cache_ptr;
 344      asymbol **symbols;
 345      bfd_size_type symcount ATTRIBUTE_UNUSED;
 346 {
 347   int r_index;
 348   int r_extern;
 349   int r_pcrel;
 350   struct aoutdata *su = &(abfd->tdata.aout_data->a);
 351
 352   cache_ptr->address = bfd_h_get_32 (abfd, bytes->r_address);
 353
 354   cache_ptr->howto = MY_reloc_howto (abfd, bytes, r_index, r_extern, r_pcrel);
 355
 356   MOVE_ADDRESS (0);
 357 }
 358
 359 void
 360 MY_swap_std_reloc_out (abfd, g, natptr)
 361      bfd *abfd;
 362      arelent *g;
 363      struct reloc_std_external *natptr;
 364 {
 365   int r_index;
 366   asymbol *sym = *(g->sym_ptr_ptr);
 367   int r_extern;
 368   int r_length;
 369   int r_pcrel;
 370   int r_neg = 0;        /* Negative relocs use the BASEREL bit.  */
 371   asection *output_section = sym->section->output_section;
 372
 373   PUT_WORD(abfd, g->address, natptr->r_address);
 374
 375   r_length = g->howto->size ;   /* Size as a power of two */
 376   if (r_length < 0)
 377     {
 378       r_length = -r_length;
 379       r_neg = 1;
 380     }
 381
 382   r_pcrel  = (int) g->howto->pc_relative; /* Relative to PC? */
 383
 384   /* For RISC iX, in pc-relative relocs the r_pcrel bit means that the
 385      relocation has been done already (Only for the 26-bit one I think)???!!!
 386      */
 387
 388   if (g->howto->type == 3)
 389     {
 390       r_length = 3;
 391       r_pcrel = 0;
 392     }
 393   else if (g->howto->type == 7)
 394     {
 395       r_length = 3;
 396       r_pcrel = 1;
 397     }
 398
 399 #if 0
 400   /* For a standard reloc, the addend is in the object file.  */
 401   r_addend = g->addend + (*(g->sym_ptr_ptr))->section->output_section->vma;
 402 #endif
 403
 404   /* name was clobbered by aout_write_syms to be symbol index */
 405
 406   /* If this relocation is relative to a symbol then set the
 407      r_index to the symbols index, and the r_extern bit.
 408
 409      Absolute symbols can come in in two ways, either as an offset
 410      from the abs section, or as a symbol which has an abs value.
 411      check for that here
 412      */
 413
 414   if (bfd_is_com_section (output_section)
 415       || output_section == &bfd_abs_section
 416       || output_section == &bfd_und_section)
 417     {
 418       if (bfd_abs_section.symbol == sym)
 419         {
 420           /* Whoops, looked like an abs symbol, but is really an offset
 421              from the abs section */
 422           r_index = 0;
 423           r_extern = 0;
 424         }
 425       else
 426         {
 427           /* Fill in symbol */
 428           r_extern = 1;
 429           r_index = (*(g->sym_ptr_ptr))->KEEPIT;
 430         }
 431     }
 432   else
 433     {
 434       /* Just an ordinary section */
 435       r_extern = 0;
 436       r_index  = output_section->target_index;
 437     }
 438
 439   /* now the fun stuff */
 440   if (bfd_header_big_endian (abfd))
 441     {
 442       natptr->r_index[0] = r_index >> 16;
 443       natptr->r_index[1] = r_index >> 8;
 444       natptr->r_index[2] = r_index;
 445       natptr->r_type[0] =
 446         (  (r_extern ?   RELOC_STD_BITS_EXTERN_BIG: 0)
 447          | (r_pcrel  ?   RELOC_STD_BITS_PCREL_BIG: 0)
 448          | (r_neg    ?   RELOC_ARM_BITS_NEG_BIG: 0)
 449          | (r_length <<  RELOC_STD_BITS_LENGTH_SH_BIG));
 450     }
 451   else
 452     {
 453       natptr->r_index[2] = r_index >> 16;
 454       natptr->r_index[1] = r_index >> 8;
 455       natptr->r_index[0] = r_index;
 456       natptr->r_type[0] =
 457         (  (r_extern ?   RELOC_STD_BITS_EXTERN_LITTLE: 0)
 458          | (r_pcrel  ?   RELOC_STD_BITS_PCREL_LITTLE: 0)
 459          | (r_neg    ?   RELOC_ARM_BITS_NEG_LITTLE: 0)
 460          | (r_length <<  RELOC_STD_BITS_LENGTH_SH_LITTLE));
 461     }
 462 }
 463
 464 #define MY_BFD_TARGET
 465
 466 #include "aout-target.h"
 467
 468 extern const bfd_target aout_arm_big_vec;
 469
 470 const bfd_target aout_arm_little_vec =
 471 {
 472   "a.out-arm-little",           /* name */
 473   bfd_target_aout_flavour,
 474   BFD_ENDIAN_LITTLE,            /* target byte order (little) */
 475   BFD_ENDIAN_LITTLE,            /* target headers byte order (little) */
 476   (HAS_RELOC | EXEC_P |         /* object flags */
 477    HAS_LINENO | HAS_DEBUG |
 478    HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
 479   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
 480   MY_symbol_leading_char,
 481   AR_PAD_CHAR,                  /* ar_pad_char */
 482   15,                           /* ar_max_namelen */
 483   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 484      bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 485      bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
 486   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 487      bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 488      bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
 489     {_bfd_dummy_target, MY_object_p, /* bfd_check_format */
 490        bfd_generic_archive_p, MY_core_file_p},
 491     {bfd_false, MY_mkobject,    /* bfd_set_format */
 492        _bfd_generic_mkarchive, bfd_false},
 493     {bfd_false, MY_write_object_contents, /* bfd_write_contents */
 494        _bfd_write_archive_contents, bfd_false},
 495
 496      BFD_JUMP_TABLE_GENERIC (MY),
 497      BFD_JUMP_TABLE_COPY (MY),
 498      BFD_JUMP_TABLE_CORE (MY),
 499      BFD_JUMP_TABLE_ARCHIVE (MY),
 500      BFD_JUMP_TABLE_SYMBOLS (MY),
 501      BFD_JUMP_TABLE_RELOCS (MY),
 502      BFD_JUMP_TABLE_WRITE (MY),
 503      BFD_JUMP_TABLE_LINK (MY),
 504      BFD_JUMP_TABLE_DYNAMIC (MY),
 505
 506   & aout_arm_big_vec,
 507
 508   (PTR) MY_backend_data,
 509 };
 510
 511 const bfd_target aout_arm_big_vec =
 512 {
 513   "a.out-arm-big",           /* name */
 514   bfd_target_aout_flavour,
 515   BFD_ENDIAN_BIG,               /* target byte order (big) */
 516   BFD_ENDIAN_BIG,               /* target headers byte order (big) */
 517   (HAS_RELOC | EXEC_P |         /* object flags */
 518    HAS_LINENO | HAS_DEBUG |
 519    HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
 520   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
 521   MY_symbol_leading_char,
 522   AR_PAD_CHAR,                  /* ar_pad_char */
 523   15,                           /* ar_max_namelen */
 524   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 525      bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 526      bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
 527   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 528      bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 529      bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
 530     {_bfd_dummy_target, MY_object_p, /* bfd_check_format */
 531        bfd_generic_archive_p, MY_core_file_p},
 532     {bfd_false, MY_mkobject,    /* bfd_set_format */
 533        _bfd_generic_mkarchive, bfd_false},
 534     {bfd_false, MY_write_object_contents, /* bfd_write_contents */
 535        _bfd_write_archive_contents, bfd_false},
 536
 537      BFD_JUMP_TABLE_GENERIC (MY),
 538      BFD_JUMP_TABLE_COPY (MY),
 539      BFD_JUMP_TABLE_CORE (MY),
 540      BFD_JUMP_TABLE_ARCHIVE (MY),
 541      BFD_JUMP_TABLE_SYMBOLS (MY),
 542      BFD_JUMP_TABLE_RELOCS (MY),
 543      BFD_JUMP_TABLE_WRITE (MY),
 544      BFD_JUMP_TABLE_LINK (MY),
 545      BFD_JUMP_TABLE_DYNAMIC (MY),
 546
 547   & aout_arm_little_vec,
 548
 549   (PTR) MY_backend_data,
 550 };