bfd/aout-arm.c

   1 /* BFD back-end for raw ARM a.out binaries.
   2    Copyright 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002
   3    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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  21
  22 #include "bfd.h"
  23 #include "sysdep.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
  54 #include "libaout.h"
  55 #include "aout/aout64.h"
  56
  57 static bfd_boolean MY(write_object_contents)
  58   PARAMS ((bfd *));
  59 static bfd_reloc_status_type MY(fix_pcrel_26_done)
  60   PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
  61 static bfd_reloc_status_type MY(fix_pcrel_26)
  62   PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
  63 static void MY(swap_std_reloc_in)
  64   PARAMS ((bfd *, struct reloc_std_external *, arelent *, asymbol **,
  65            bfd_size_type));
  66 reloc_howto_type *MY(bfd_reloc_type_lookup)
  67   PARAMS ((bfd *, bfd_reloc_code_real_type));
  68 reloc_howto_type * MY(reloc_howto)
  69   PARAMS ((bfd *, struct reloc_std_external *, int *, int *, int *));
  70 void MY(put_reloc)
  71   PARAMS ((bfd *, int, int, bfd_vma, reloc_howto_type *,
  72            struct reloc_std_external *));
  73 void MY(relocatable_reloc)
  74   PARAMS ((reloc_howto_type *, bfd *, struct reloc_std_external *, bfd_vma *,
  75            bfd_vma));
  76 void MY(swap_std_reloc_out)
  77   PARAMS ((bfd *, arelent *, struct reloc_std_external *));
  78 \f
  79 reloc_howto_type MY(howto_table)[] =
  80   {
  81     /* Type rs size bsz pcrel bitpos ovrf sf name part_inpl
  82        readmask setmask pcdone.  */
  83     HOWTO (0, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, 0, "8", TRUE,
  84            0x000000ff, 0x000000ff, FALSE),
  85     HOWTO (1, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, 0, "16", TRUE,
  86            0x0000ffff, 0x0000ffff, FALSE),
  87     HOWTO (2, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "32", TRUE,
  88            0xffffffff, 0xffffffff, FALSE),
  89     HOWTO (3, 2, 2, 26, TRUE, 0, complain_overflow_signed, MY(fix_pcrel_26),
  90            "ARM26", TRUE, 0x00ffffff, 0x00ffffff, TRUE),
  91     HOWTO (4, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0, "DISP8", TRUE,
  92            0x000000ff, 0x000000ff, TRUE),
  93     HOWTO (5, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0, "DISP16", TRUE,
  94            0x0000ffff, 0x0000ffff, TRUE),
  95     HOWTO (6, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0, "DISP32", TRUE,
  96            0xffffffff, 0xffffffff, TRUE),
  97     HOWTO (7, 2, 2, 26, FALSE, 0, complain_overflow_signed,
  98            MY(fix_pcrel_26_done), "ARM26D", TRUE, 0x0, 0x0,
  99            FALSE),
 100     EMPTY_HOWTO (-1),
 101     HOWTO (9, 0, -1, 16, FALSE, 0, complain_overflow_bitfield, 0, "NEG16", TRUE,
 102            0x0000ffff, 0x0000ffff, FALSE),
 103     HOWTO (10, 0, -2, 32, FALSE, 0, complain_overflow_bitfield, 0, "NEG32", TRUE,
 104            0xffffffff, 0xffffffff, FALSE)
 105   };
 106
 107 #define RELOC_ARM_BITS_NEG_BIG      ((unsigned int) 0x08)
 108 #define RELOC_ARM_BITS_NEG_LITTLE   ((unsigned int) 0x10)
 109
 110 reloc_howto_type *
 111 MY(reloc_howto) (abfd, rel, r_index, r_extern, r_pcrel)
 112      bfd *abfd;
 113      struct reloc_std_external *rel;
 114      int *r_index;
 115      int *r_extern;
 116      int *r_pcrel;
 117 {
 118   unsigned int r_length;
 119   unsigned int r_pcrel_done;
 120   unsigned int r_neg;
 121   int index;
 122
 123   *r_pcrel = 0;
 124   if (bfd_header_big_endian (abfd))
 125     {
 126       *r_index     =  ((rel->r_index[0] << 16)
 127                        | (rel->r_index[1] << 8)
 128                        | rel->r_index[2]);
 129       *r_extern    = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
 130       r_pcrel_done = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
 131       r_neg        = (0 != (rel->r_type[0] & RELOC_ARM_BITS_NEG_BIG));
 132       r_length     = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
 133                       >> RELOC_STD_BITS_LENGTH_SH_BIG);
 134     }
 135   else
 136     {
 137       *r_index     = ((rel->r_index[2] << 16)
 138                       | (rel->r_index[1] << 8)
 139                       | rel->r_index[0]);
 140       *r_extern    = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
 141       r_pcrel_done = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
 142       r_neg        = (0 != (rel->r_type[0] & RELOC_ARM_BITS_NEG_LITTLE));
 143       r_length     = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
 144                       >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
 145     }
 146   index = r_length + 4 * r_pcrel_done + 8 * r_neg;
 147   if (index == 3)
 148     *r_pcrel = 1;
 149
 150   return MY(howto_table) + index;
 151 }
 152
 153 #define MY_reloc_howto(BFD, REL, IN, EX, PC) \
 154         MY(reloc_howto) (BFD, REL, &IN, &EX, &PC)
 155
 156 void
 157 MY(put_reloc) (abfd, r_extern, r_index, value, howto, reloc)
 158      bfd *abfd;
 159      int r_extern;
 160      int r_index;
 161      bfd_vma value;
 162      reloc_howto_type *howto;
 163      struct reloc_std_external *reloc;
 164 {
 165   unsigned int r_length;
 166   int r_pcrel;
 167   int r_neg;
 168
 169   PUT_WORD (abfd, value, reloc->r_address);
 170   /* Size as a power of two.  */
 171   r_length = howto->size;
 172
 173   /* Special case for branch relocations.  */
 174   if (howto->type == 3 || howto->type == 7)
 175     r_length = 3;
 176
 177   r_pcrel  = howto->type & 4;   /* PC Relative done?  */
 178   r_neg = howto->type & 8;      /* Negative relocation.  */
 179
 180   if (bfd_header_big_endian (abfd))
 181     {
 182       reloc->r_index[0] = r_index >> 16;
 183       reloc->r_index[1] = r_index >> 8;
 184       reloc->r_index[2] = r_index;
 185       reloc->r_type[0] =
 186         ((r_extern ?     RELOC_STD_BITS_EXTERN_BIG : 0)
 187          | (r_pcrel ?    RELOC_STD_BITS_PCREL_BIG : 0)
 188          | (r_neg ?      RELOC_ARM_BITS_NEG_BIG : 0)
 189          | (r_length <<  RELOC_STD_BITS_LENGTH_SH_BIG));
 190     }
 191   else
 192     {
 193       reloc->r_index[2] = r_index >> 16;
 194       reloc->r_index[1] = r_index >> 8;
 195       reloc->r_index[0] = r_index;
 196       reloc->r_type[0] =
 197         ((r_extern ?     RELOC_STD_BITS_EXTERN_LITTLE : 0)
 198          | (r_pcrel ?    RELOC_STD_BITS_PCREL_LITTLE : 0)
 199          | (r_neg ?      RELOC_ARM_BITS_NEG_LITTLE : 0)
 200          | (r_length <<  RELOC_STD_BITS_LENGTH_SH_LITTLE));
 201     }
 202 }
 203
 204 #define MY_put_reloc(BFD, EXT, IDX, VAL, HOWTO, RELOC) \
 205   MY(put_reloc) (BFD, EXT, IDX, VAL, HOWTO, RELOC)
 206
 207 void
 208 MY(relocatable_reloc) (howto, abfd, reloc, amount, r_addr)
 209      reloc_howto_type *howto;
 210      bfd *abfd;
 211      struct reloc_std_external *reloc;
 212      bfd_vma *amount;
 213      bfd_vma r_addr;
 214 {
 215   if (howto->type == 3)
 216     {
 217       if (reloc->r_type[0]
 218           & (bfd_header_big_endian (abfd)
 219              ? RELOC_STD_BITS_EXTERN_BIG : RELOC_STD_BITS_EXTERN_LITTLE))
 220         {
 221           /* The reloc is still external, so don't modify anything.  */
 222           *amount = 0;
 223         }
 224       else
 225         {
 226           *amount -= r_addr;
 227           /* Change the r_pcrel value -- on the ARM, this bit is set once the
 228              relocation is done.  */
 229           if (bfd_header_big_endian (abfd))
 230             reloc->r_type[0] |= RELOC_STD_BITS_PCREL_BIG;
 231           else
 232             reloc->r_type[0] |= RELOC_STD_BITS_PCREL_LITTLE;
 233         }
 234     }
 235   else if (howto->type == 7)
 236     *amount = 0;
 237 }
 238
 239 #define MY_relocatable_reloc(HOW, BFD, REL, AMOUNT, ADDR) \
 240   MY(relocatable_reloc) (HOW, BFD, REL, &(AMOUNT), ADDR)
 241
 242 static bfd_reloc_status_type
 243 MY(fix_pcrel_26_done) (abfd, reloc_entry, symbol, data, input_section,
 244                        output_bfd, error_message)
 245      bfd *abfd ATTRIBUTE_UNUSED;
 246      arelent *reloc_entry ATTRIBUTE_UNUSED;
 247      asymbol *symbol ATTRIBUTE_UNUSED;
 248      PTR data ATTRIBUTE_UNUSED;
 249      asection *input_section ATTRIBUTE_UNUSED;
 250      bfd *output_bfd ATTRIBUTE_UNUSED;
 251      char **error_message ATTRIBUTE_UNUSED;
 252 {
 253   /* This is dead simple at present.  */
 254   return bfd_reloc_ok;
 255 }
 256
 257 static bfd_reloc_status_type
 258 MY(fix_pcrel_26) (abfd, reloc_entry, symbol, data, input_section,
 259                   output_bfd, error_message)
 260      bfd *abfd;
 261      arelent *reloc_entry;
 262      asymbol *symbol;
 263      PTR data;
 264      asection *input_section;
 265      bfd *output_bfd;
 266      char **error_message ATTRIBUTE_UNUSED;
 267 {
 268   bfd_vma relocation;
 269   bfd_size_type addr = reloc_entry->address;
 270   bfd_vma target = bfd_get_32 (abfd, (bfd_byte *) data + addr);
 271   bfd_reloc_status_type flag = bfd_reloc_ok;
 272
 273   /* If this is an undefined symbol, return error.  */
 274   if (symbol->section == &bfd_und_section
 275       && (symbol->flags & BSF_WEAK) == 0)
 276     return output_bfd ? bfd_reloc_ok : bfd_reloc_undefined;
 277
 278   /* If the sections are different, and we are doing a partial relocation,
 279      just ignore it for now.  */
 280   if (symbol->section->name != input_section->name
 281       && output_bfd != (bfd *)NULL)
 282     return bfd_reloc_ok;
 283
 284   relocation = (target & 0x00ffffff) << 2;
 285   relocation = (relocation ^ 0x02000000) - 0x02000000; /* Sign extend.  */
 286   relocation += symbol->value;
 287   relocation += symbol->section->output_section->vma;
 288   relocation += symbol->section->output_offset;
 289   relocation += reloc_entry->addend;
 290   relocation -= input_section->output_section->vma;
 291   relocation -= input_section->output_offset;
 292   relocation -= addr;
 293   if (relocation & 3)
 294     return bfd_reloc_overflow;
 295
 296   /* Check for overflow.  */
 297   if (relocation & 0x02000000)
 298     {
 299       if ((relocation & ~ (bfd_vma) 0x03ffffff) != ~ (bfd_vma) 0x03ffffff)
 300         flag = bfd_reloc_overflow;
 301     }
 302   else if (relocation & ~ (bfd_vma) 0x03ffffff)
 303     flag = bfd_reloc_overflow;
 304
 305   target &= ~ (bfd_vma) 0x00ffffff;
 306   target |= (relocation >> 2) & 0x00ffffff;
 307   bfd_put_32 (abfd, target, (bfd_byte *) data + addr);
 308
 309   /* Now the ARM magic... Change the reloc type so that it is marked as done.
 310      Strictly this is only necessary if we are doing a partial relocation.  */
 311   reloc_entry->howto = &MY(howto_table)[7];
 312
 313   return flag;
 314 }
 315
 316 reloc_howto_type *
 317 MY(bfd_reloc_type_lookup) (abfd,code)
 318      bfd *abfd;
 319      bfd_reloc_code_real_type code;
 320 {
 321 #define ASTD(i,j)       case i: return &MY(howto_table)[j]
 322   if (code == BFD_RELOC_CTOR)
 323     switch (bfd_get_arch_info (abfd)->bits_per_address)
 324       {
 325       case 32:
 326         code = BFD_RELOC_32;
 327         break;
 328       default:
 329         return (const struct reloc_howto_struct *) 0;
 330       }
 331
 332   switch (code)
 333     {
 334       ASTD (BFD_RELOC_16, 1);
 335       ASTD (BFD_RELOC_32, 2);
 336       ASTD (BFD_RELOC_ARM_PCREL_BRANCH, 3);
 337       ASTD (BFD_RELOC_8_PCREL, 4);
 338       ASTD (BFD_RELOC_16_PCREL, 5);
 339       ASTD (BFD_RELOC_32_PCREL, 6);
 340     default:
 341       return (const struct reloc_howto_struct *) 0;
 342     }
 343 }
 344
 345 #define MY_swap_std_reloc_in MY(swap_std_reloc_in)
 346 #define MY_swap_std_reloc_out MY(swap_std_reloc_out)
 347 #define MY_get_section_contents _bfd_generic_get_section_contents
 348 /* #define MY_bfd_link_hash_table_create _bfd_generic_link_hash_table_create */
 349 /* #define MY_bfd_link_add_symbols _bfd_generic_link_add_symbols */
 350 /* #define MY_bfd_final_link _bfd_generic_final_link */
 351
 352 #include "aoutx.h"
 353
 354 static void
 355 MY_swap_std_reloc_in (abfd, bytes, cache_ptr, symbols, symcount)
 356      bfd *abfd;
 357      struct reloc_std_external *bytes;
 358      arelent *cache_ptr;
 359      asymbol **symbols;
 360      bfd_size_type symcount ATTRIBUTE_UNUSED;
 361 {
 362   int r_index;
 363   int r_extern;
 364   int r_pcrel;
 365   struct aoutdata *su = &(abfd->tdata.aout_data->a);
 366
 367   cache_ptr->address = H_GET_32 (abfd, bytes->r_address);
 368
 369   cache_ptr->howto = MY_reloc_howto (abfd, bytes, r_index, r_extern, r_pcrel);
 370
 371   MOVE_ADDRESS (0);
 372 }
 373
 374 void
 375 MY_swap_std_reloc_out (abfd, g, natptr)
 376      bfd *abfd;
 377      arelent *g;
 378      struct reloc_std_external *natptr;
 379 {
 380   int r_index;
 381   asymbol *sym = *(g->sym_ptr_ptr);
 382   int r_extern;
 383   int r_length;
 384   int r_pcrel;
 385   int r_neg = 0;        /* Negative relocs use the BASEREL bit.  */
 386   asection *output_section = sym->section->output_section;
 387
 388   PUT_WORD(abfd, g->address, natptr->r_address);
 389
 390   r_length = g->howto->size ;   /* Size as a power of two */
 391   if (r_length < 0)
 392     {
 393       r_length = -r_length;
 394       r_neg = 1;
 395     }
 396
 397   r_pcrel  = (int) g->howto->pc_relative; /* Relative to PC? */
 398
 399   /* For RISC iX, in pc-relative relocs the r_pcrel bit means that the
 400      relocation has been done already (Only for the 26-bit one I think)???!!!
 401      */
 402
 403   if (g->howto->type == 3)
 404     {
 405       r_length = 3;
 406       r_pcrel = 0;
 407     }
 408   else if (g->howto->type == 7)
 409     {
 410       r_length = 3;
 411       r_pcrel = 1;
 412     }
 413
 414 #if 0
 415   /* For a standard reloc, the addend is in the object file.  */
 416   r_addend = g->addend + (*(g->sym_ptr_ptr))->section->output_section->vma;
 417 #endif
 418
 419   /* name was clobbered by aout_write_syms to be symbol index */
 420
 421   /* If this relocation is relative to a symbol then set the
 422      r_index to the symbols index, and the r_extern bit.
 423
 424      Absolute symbols can come in in two ways, either as an offset
 425      from the abs section, or as a symbol which has an abs value.
 426      check for that here
 427      */
 428
 429   if (bfd_is_com_section (output_section)
 430       || output_section == &bfd_abs_section
 431       || output_section == &bfd_und_section)
 432     {
 433       if (bfd_abs_section.symbol == sym)
 434         {
 435           /* Whoops, looked like an abs symbol, but is really an offset
 436              from the abs section.  */
 437           r_index = 0;
 438           r_extern = 0;
 439         }
 440       else
 441         {
 442           /* Fill in symbol.  */
 443           r_extern = 1;
 444           r_index = (*(g->sym_ptr_ptr))->KEEPIT;
 445         }
 446     }
 447   else
 448     {
 449       /* Just an ordinary section.  */
 450       r_extern = 0;
 451       r_index  = output_section->target_index;
 452     }
 453
 454   /* Now the fun stuff.  */
 455   if (bfd_header_big_endian (abfd))
 456     {
 457       natptr->r_index[0] = r_index >> 16;
 458       natptr->r_index[1] = r_index >> 8;
 459       natptr->r_index[2] = r_index;
 460       natptr->r_type[0] =
 461         (  (r_extern ?   RELOC_STD_BITS_EXTERN_BIG: 0)
 462          | (r_pcrel  ?   RELOC_STD_BITS_PCREL_BIG: 0)
 463          | (r_neg    ?   RELOC_ARM_BITS_NEG_BIG: 0)
 464          | (r_length <<  RELOC_STD_BITS_LENGTH_SH_BIG));
 465     }
 466   else
 467     {
 468       natptr->r_index[2] = r_index >> 16;
 469       natptr->r_index[1] = r_index >> 8;
 470       natptr->r_index[0] = r_index;
 471       natptr->r_type[0] =
 472         (  (r_extern ?   RELOC_STD_BITS_EXTERN_LITTLE: 0)
 473          | (r_pcrel  ?   RELOC_STD_BITS_PCREL_LITTLE: 0)
 474          | (r_neg    ?   RELOC_ARM_BITS_NEG_LITTLE: 0)
 475          | (r_length <<  RELOC_STD_BITS_LENGTH_SH_LITTLE));
 476     }
 477 }
 478
 479 #define MY_BFD_TARGET
 480
 481 #include "aout-target.h"
 482
 483 extern const bfd_target aout_arm_big_vec;
 484
 485 const bfd_target aout_arm_little_vec =
 486   {
 487     "a.out-arm-little",           /* name */
 488     bfd_target_aout_flavour,
 489     BFD_ENDIAN_LITTLE,            /* target byte order (little) */
 490     BFD_ENDIAN_LITTLE,            /* target headers byte order (little) */
 491     (HAS_RELOC | EXEC_P |         /* object flags */
 492      HAS_LINENO | HAS_DEBUG |
 493      HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
 494     (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
 495     MY_symbol_leading_char,
 496     AR_PAD_CHAR,                  /* ar_pad_char */
 497     15,                           /* ar_max_namelen */
 498     bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 499     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 500     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
 501     bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 502     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 503     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
 504     {_bfd_dummy_target, MY_object_p,            /* bfd_check_format */
 505      bfd_generic_archive_p, MY_core_file_p},
 506     {bfd_false, MY_mkobject,                    /* bfd_set_format */
 507      _bfd_generic_mkarchive, bfd_false},
 508     {bfd_false, MY_write_object_contents,       /* bfd_write_contents */
 509      _bfd_write_archive_contents, bfd_false},
 510
 511     BFD_JUMP_TABLE_GENERIC (MY),
 512     BFD_JUMP_TABLE_COPY (MY),
 513     BFD_JUMP_TABLE_CORE (MY),
 514     BFD_JUMP_TABLE_ARCHIVE (MY),
 515     BFD_JUMP_TABLE_SYMBOLS (MY),
 516     BFD_JUMP_TABLE_RELOCS (MY),
 517     BFD_JUMP_TABLE_WRITE (MY),
 518     BFD_JUMP_TABLE_LINK (MY),
 519     BFD_JUMP_TABLE_DYNAMIC (MY),
 520
 521     & aout_arm_big_vec,
 522
 523     (PTR) MY_backend_data,
 524   };
 525
 526 const bfd_target aout_arm_big_vec =
 527   {
 528     "a.out-arm-big",              /* name */
 529     bfd_target_aout_flavour,
 530     BFD_ENDIAN_BIG,               /* target byte order (big) */
 531     BFD_ENDIAN_BIG,               /* target headers byte order (big) */
 532     (HAS_RELOC | EXEC_P |         /* object flags */
 533      HAS_LINENO | HAS_DEBUG |
 534      HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
 535     (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
 536     MY_symbol_leading_char,
 537     AR_PAD_CHAR,                                /* ar_pad_char */
 538     15,                                         /* ar_max_namelen */
 539     bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 540     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 541     bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
 542     bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 543     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 544     bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
 545     {_bfd_dummy_target, MY_object_p,            /* bfd_check_format */
 546      bfd_generic_archive_p, MY_core_file_p},
 547     {bfd_false, MY_mkobject,                    /* bfd_set_format */
 548      _bfd_generic_mkarchive, bfd_false},
 549     {bfd_false, MY_write_object_contents,       /* bfd_write_contents */
 550      _bfd_write_archive_contents, bfd_false},
 551
 552     BFD_JUMP_TABLE_GENERIC (MY),
 553     BFD_JUMP_TABLE_COPY (MY),
 554     BFD_JUMP_TABLE_CORE (MY),
 555     BFD_JUMP_TABLE_ARCHIVE (MY),
 556     BFD_JUMP_TABLE_SYMBOLS (MY),
 557     BFD_JUMP_TABLE_RELOCS (MY),
 558     BFD_JUMP_TABLE_WRITE (MY),
 559     BFD_JUMP_TABLE_LINK (MY),
 560     BFD_JUMP_TABLE_DYNAMIC (MY),
 561
 562     & aout_arm_little_vec,
 563
 564     (PTR) MY_backend_data,
 565   };