bfd/elf64-target.h

   1 /* Target definitions for 64-bit ELF
   2    Copyright 1993, 1994 Free Software Foundation, Inc.
   3
   4 This file is part of BFD, the Binary File Descriptor library.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 /* This structure contains everything that BFD knows about a target.
  21    It includes things like its byte order, name, what routines to call
  22    to do various operations, etc.  Every BFD points to a target structure
  23    with its "xvec" member.
  24
  25    There are two such structures here:  one for big-endian machines and
  26    one for little-endian machines.   */
  27
  28 #define bfd_elf64_close_and_cleanup _bfd_generic_close_and_cleanup
  29 #define bfd_elf64_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
  30 #ifndef bfd_elf64_get_section_contents
  31 #define bfd_elf64_get_section_contents _bfd_generic_get_section_contents
  32 #endif
  33
  34 #define bfd_elf64_bfd_debug_info_start  bfd_void
  35 #define bfd_elf64_bfd_debug_info_end    bfd_void
  36 #define bfd_elf64_bfd_debug_info_accumulate     (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
  37 #define bfd_elf64_bfd_get_relocated_section_contents \
  38  bfd_generic_get_relocated_section_contents
  39 #define bfd_elf64_bfd_relax_section bfd_generic_relax_section
  40 #define bfd_elf64_bfd_make_debug_symbol \
  41   ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
  42 #ifndef bfd_elf64_bfd_link_hash_table_create
  43 #define bfd_elf64_bfd_link_hash_table_create \
  44   _bfd_generic_link_hash_table_create
  45 #endif
  46 #ifndef bfd_elf64_bfd_link_add_symbols
  47 #define bfd_elf64_bfd_link_add_symbols  _bfd_generic_link_add_symbols
  48 #endif
  49 #ifndef bfd_elf64_bfd_final_link
  50 #define bfd_elf64_bfd_final_link        _bfd_generic_final_link
  51 #endif
  52
  53 #ifndef bfd_elf64_bfd_copy_private_section_data
  54 #define bfd_elf64_bfd_copy_private_section_data \
  55   ((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_true)
  56 #endif
  57 #ifndef bfd_elf64_bfd_copy_private_bfd_data
  58 #define bfd_elf64_bfd_copy_private_bfd_data \
  59   ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
  60 #endif
  61 #ifndef bfd_elf64_bfd_is_local_label
  62 #define bfd_elf64_bfd_is_local_label bfd_generic_is_local_label
  63 #endif
  64
  65 #ifndef elf_info_to_howto_rel
  66 #define elf_info_to_howto_rel 0
  67 #endif
  68
  69 #ifndef ELF_MAXPAGESIZE
  70 #define ELF_MAXPAGESIZE 1
  71 #endif
  72
  73 #ifndef elf_backend_sym_is_global
  74 #define elf_backend_sym_is_global       0
  75 #endif
  76 #ifndef elf_backend_object_p
  77 #define elf_backend_object_p            0
  78 #endif
  79 #ifndef elf_backend_symbol_processing
  80 #define elf_backend_symbol_processing   0
  81 #endif
  82 #ifndef elf_backend_symbol_table_processing
  83 #define elf_backend_symbol_table_processing     0
  84 #endif
  85 #ifndef elf_backend_section_processing
  86 #define elf_backend_section_processing  0
  87 #endif
  88 #ifndef elf_backend_section_from_shdr
  89 #define elf_backend_section_from_shdr   0
  90 #endif
  91 #ifndef elf_backend_fake_sections
  92 #define elf_backend_fake_sections       0
  93 #endif
  94 #ifndef elf_backend_section_from_bfd_section
  95 #define elf_backend_section_from_bfd_section    0
  96 #endif
  97 #ifndef elf_backend_begin_write_processing
  98 #define elf_backend_begin_write_processing      0
  99 #endif
 100 #ifndef elf_backend_final_write_processing
 101 #define elf_backend_final_write_processing      0
 102 #endif
 103 #ifndef elf_backend_ecoff_debug_swap
 104 #define elf_backend_ecoff_debug_swap    0
 105 #endif
 106
 107 static CONST struct elf_backend_data elf64_bed =
 108 {
 109 #ifdef USE_REL
 110   0,                            /* use_rela_p */
 111 #else
 112   1,                            /* use_rela_p */
 113 #endif
 114   1,                            /* elf_64_p */
 115   ELF_ARCH,                     /* arch */
 116   ELF_MACHINE_CODE,             /* elf_machine_code */
 117   ELF_MAXPAGESIZE,              /* maxpagesize */
 118   elf_info_to_howto,
 119   elf_info_to_howto_rel,
 120   elf_backend_sym_is_global,
 121   elf_backend_object_p,
 122   elf_backend_symbol_processing,
 123   elf_backend_symbol_table_processing,
 124   elf_backend_section_processing,
 125   elf_backend_section_from_shdr,
 126   elf_backend_fake_sections,
 127   elf_backend_section_from_bfd_section,
 128   elf_backend_begin_write_processing,
 129   elf_backend_final_write_processing,
 130   elf_backend_ecoff_debug_swap
 131 };
 132
 133 #ifdef TARGET_BIG_SYM
 134 bfd_target TARGET_BIG_SYM =
 135 {
 136   /* name: identify kind of target */
 137   TARGET_BIG_NAME,
 138
 139   /* flavour: general indication about file */
 140   bfd_target_elf_flavour,
 141
 142   /* byteorder_big_p: data is big endian */
 143   true,
 144
 145   /* header_byteorder_big_p: header is also big endian */
 146   true,
 147
 148   /* object_flags: mask of all file flags */
 149   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
 150    DYNAMIC | WP_TEXT),
 151
 152   /* section_flags: mask of all section flags */
 153   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
 154    SEC_CODE | SEC_DATA | SEC_DEBUGGING),
 155
 156    /* leading_symbol_char: is the first char of a user symbol
 157       predictable, and if so what is it */
 158    0,
 159
 160   /* ar_pad_char: pad character for filenames within an archive header
 161      FIXME:  this really has nothing to do with ELF, this is a characteristic
 162      of the archiver and/or os and should be independently tunable */
 163   '/',
 164
 165   /* ar_max_namelen: maximum number of characters in an archive header
 166      FIXME:  this really has nothing to do with ELF, this is a characteristic
 167      of the archiver and should be independently tunable.  This value is
 168      a WAG (wild a** guess) */
 169   15,
 170
 171   /* align_power_min: minimum alignment restriction for any section
 172      FIXME:  this value may be target machine dependent */
 173   3,
 174
 175   /* Routines to byte-swap various sized integers from the data sections */
 176   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 177     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 178     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 179
 180   /* Routines to byte-swap various sized integers from the file headers */
 181   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 182     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 183     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 184
 185   /* bfd_check_format: check the format of a file being read */
 186   { _bfd_dummy_target,          /* unknown format */
 187     bfd_elf64_object_p,         /* assembler/linker output (object file) */
 188     bfd_generic_archive_p,      /* an archive */
 189     bfd_elf64_core_file_p       /* a core file */
 190   },
 191
 192   /* bfd_set_format: set the format of a file being written */
 193   { bfd_false,
 194     bfd_elf_mkobject,
 195     _bfd_generic_mkarchive,
 196     bfd_false
 197   },
 198
 199   /* bfd_write_contents: write cached information into a file being written */
 200   { bfd_false,
 201     bfd_elf64_write_object_contents,
 202     _bfd_write_archive_contents,
 203     bfd_false
 204   },
 205
 206       BFD_JUMP_TABLE_GENERIC (bfd_elf64),
 207       BFD_JUMP_TABLE_COPY (bfd_elf64),
 208       BFD_JUMP_TABLE_CORE (bfd_elf64),
 209       BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 210       BFD_JUMP_TABLE_SYMBOLS (bfd_elf64),
 211       BFD_JUMP_TABLE_RELOCS (bfd_elf64),
 212       BFD_JUMP_TABLE_WRITE (bfd_elf64),
 213       BFD_JUMP_TABLE_LINK (bfd_elf64),
 214       BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
 215
 216   /* backend_data: */
 217   (PTR) &elf64_bed,
 218 };
 219 #endif
 220
 221 #ifdef TARGET_LITTLE_SYM
 222 bfd_target TARGET_LITTLE_SYM =
 223 {
 224   /* name: identify kind of target */
 225   TARGET_LITTLE_NAME,
 226
 227   /* flavour: general indication about file */
 228   bfd_target_elf_flavour,
 229
 230   /* byteorder_big_p: data is big endian */
 231   false,                /* Nope -- this one's little endian */
 232
 233   /* header_byteorder_big_p: header is also big endian */
 234   false,                /* Nope -- this one's little endian */
 235
 236   /* object_flags: mask of all file flags */
 237   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
 238    DYNAMIC | WP_TEXT),
 239
 240   /* section_flags: mask of all section flags */
 241   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
 242    SEC_CODE | SEC_DATA | SEC_DEBUGGING),
 243
 244    /* leading_symbol_char: is the first char of a user symbol
 245       predictable, and if so what is it */
 246    0,
 247
 248   /* ar_pad_char: pad character for filenames within an archive header
 249      FIXME:  this really has nothing to do with ELF, this is a characteristic
 250      of the archiver and/or os and should be independently tunable */
 251   '/',
 252
 253   /* ar_max_namelen: maximum number of characters in an archive header
 254      FIXME:  this really has nothing to do with ELF, this is a characteristic
 255      of the archiver and should be independently tunable.  This value is
 256      a WAG (wild a** guess) */
 257   15,
 258
 259   /* align_power_min: minimum alignment restriction for any section
 260      FIXME:  this value may be target machine dependent */
 261   3,
 262
 263   /* Routines to byte-swap various sized integers from the data sections */
 264   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 265     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 266     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 267
 268   /* Routines to byte-swap various sized integers from the file headers */
 269   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 270     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 271     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 272
 273   /* bfd_check_format: check the format of a file being read */
 274   { _bfd_dummy_target,          /* unknown format */
 275     bfd_elf64_object_p,         /* assembler/linker output (object file) */
 276     bfd_generic_archive_p,      /* an archive */
 277     bfd_elf64_core_file_p       /* a core file */
 278   },
 279
 280   /* bfd_set_format: set the format of a file being written */
 281   { bfd_false,
 282     bfd_elf_mkobject,
 283     _bfd_generic_mkarchive,
 284     bfd_false
 285   },
 286
 287   /* bfd_write_contents: write cached information into a file being written */
 288   { bfd_false,
 289     bfd_elf64_write_object_contents,
 290     _bfd_write_archive_contents,
 291     bfd_false
 292   },
 293
 294       BFD_JUMP_TABLE_GENERIC (bfd_elf64),
 295       BFD_JUMP_TABLE_COPY (bfd_elf64),
 296       BFD_JUMP_TABLE_CORE (bfd_elf64),
 297       BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 298       BFD_JUMP_TABLE_SYMBOLS (bfd_elf64),
 299       BFD_JUMP_TABLE_RELOCS (bfd_elf64),
 300       BFD_JUMP_TABLE_WRITE (bfd_elf64),
 301       BFD_JUMP_TABLE_LINK (bfd_elf64),
 302       BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
 303
 304   /* backend_data: */
 305   (PTR) &elf64_bed,
 306 };
 307 #endif