bfd/mach-o-target.c

   1 /* Mach-O support for BFD.
   2    Copyright 1999, 2000, 2001, 2002, 2007, 2009
   3    Free Software Foundation, Inc.
   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 3 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., 51 Franklin Street - Fifth Floor, Boston,
  20    MA 02110-1301, USA.  */
  21
  22 /* Define generic entry points here so that we don't need to duplicate the
  23    defines in every target.  But define once as this file may be included
  24    several times.  */
  25 #ifndef MACH_O_TARGET_COMMON_DEFINED
  26 #define MACH_O_TARGET_COMMON_DEFINED
  27
  28 #define bfd_mach_o_mkarchive                          _bfd_noarchive_mkarchive
  29 #define bfd_mach_o_read_ar_hdr                        _bfd_noarchive_read_ar_hdr
  30 #define bfd_mach_o_slurp_armap                        _bfd_noarchive_slurp_armap
  31 #define bfd_mach_o_slurp_extended_name_table          _bfd_noarchive_slurp_extended_name_table
  32 #define bfd_mach_o_construct_extended_name_table      _bfd_noarchive_construct_extended_name_table
  33 #define bfd_mach_o_truncate_arname                    _bfd_noarchive_truncate_arname
  34 #define bfd_mach_o_write_armap                        _bfd_noarchive_write_armap
  35 #define bfd_mach_o_get_elt_at_index                   _bfd_noarchive_get_elt_at_index
  36 #define bfd_mach_o_generic_stat_arch_elt              _bfd_noarchive_generic_stat_arch_elt
  37 #define bfd_mach_o_update_armap_timestamp             _bfd_noarchive_update_armap_timestamp
  38 #define bfd_mach_o_close_and_cleanup                  _bfd_generic_close_and_cleanup
  39 #define bfd_mach_o_bfd_free_cached_info               _bfd_generic_bfd_free_cached_info
  40 #define bfd_mach_o_new_section_hook                   _bfd_generic_new_section_hook
  41 #define bfd_mach_o_get_section_contents_in_window     _bfd_generic_get_section_contents_in_window
  42 #define bfd_mach_o_bfd_is_target_special_symbol       ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
  43 #define bfd_mach_o_bfd_is_local_label_name            bfd_generic_is_local_label_name
  44 #define bfd_mach_o_get_lineno                         _bfd_nosymbols_get_lineno
  45 #define bfd_mach_o_find_nearest_line                  _bfd_nosymbols_find_nearest_line
  46 #define bfd_mach_o_find_inliner_info                  _bfd_nosymbols_find_inliner_info
  47 #define bfd_mach_o_bfd_make_debug_symbol              _bfd_nosymbols_bfd_make_debug_symbol
  48 #define bfd_mach_o_read_minisymbols                   _bfd_generic_read_minisymbols
  49 #define bfd_mach_o_minisymbol_to_symbol               _bfd_generic_minisymbol_to_symbol
  50 #define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
  51 #define bfd_mach_o_bfd_relax_section                  bfd_generic_relax_section
  52 #define bfd_mach_o_bfd_link_hash_table_create         _bfd_generic_link_hash_table_create
  53 #define bfd_mach_o_bfd_link_hash_table_free           _bfd_generic_link_hash_table_free
  54 #define bfd_mach_o_bfd_link_add_symbols               _bfd_generic_link_add_symbols
  55 #define bfd_mach_o_bfd_link_just_syms                 _bfd_generic_link_just_syms
  56 #define bfd_mach_o_bfd_final_link                     _bfd_generic_final_link
  57 #define bfd_mach_o_bfd_link_split_section             _bfd_generic_link_split_section
  58 #define bfd_mach_o_set_arch_mach                      bfd_default_set_arch_mach
  59 #define bfd_mach_o_bfd_merge_private_bfd_data         _bfd_generic_bfd_merge_private_bfd_data
  60 #define bfd_mach_o_bfd_set_private_flags              _bfd_generic_bfd_set_private_flags
  61 #define bfd_mach_o_get_section_contents               _bfd_generic_get_section_contents
  62 #define bfd_mach_o_bfd_gc_sections                    bfd_generic_gc_sections
  63 #define bfd_mach_o_bfd_merge_sections                 bfd_generic_merge_sections
  64 #define bfd_mach_o_bfd_is_group_section               bfd_generic_is_group_section
  65 #define bfd_mach_o_bfd_discard_group                  bfd_generic_discard_group
  66 #define bfd_mach_o_section_already_linked             _bfd_generic_section_already_linked
  67 #define bfd_mach_o_bfd_define_common_symbol           bfd_generic_define_common_symbol
  68 #define bfd_mach_o_bfd_copy_private_header_data       _bfd_generic_bfd_copy_private_header_data
  69 #define bfd_mach_o_core_file_matches_executable_p     generic_core_file_matches_executable_p
  70
  71 #define TARGET_NAME_BACKEND XCONCAT2(TARGET_NAME,_backend)
  72
  73 #endif /* MACH_O_TARGET_COMMON_DEFINED */
  74
  75 #ifndef TARGET_NAME
  76 #error TARGET_NAME must be defined
  77 #endif /* TARGET_NAME */
  78
  79 #ifndef TARGET_STRING
  80 #error TARGET_STRING must be defined
  81 #endif /* TARGET_STRING */
  82
  83 #ifndef TARGET_BIG_ENDIAN
  84 #error TARGET_BIG_ENDIAN must be defined
  85 #endif /* TARGET_BIG_ENDIAN */
  86
  87 #ifndef TARGET_ARCHIVE
  88 #error TARGET_ARCHIVE must be defined
  89 #endif /* TARGET_ARCHIVE */
  90
  91 #if ((TARGET_ARCHIVE) && (! TARGET_BIG_ENDIAN))
  92 #error Mach-O fat files must always be big-endian.
  93 #endif /* ((TARGET_ARCHIVE) && (! TARGET_BIG_ENDIAN)) */
  94
  95 static const bfd_mach_o_backend_data TARGET_NAME_BACKEND =
  96 {
  97   bfd_mach_o_swap_reloc_in,
  98   bfd_mach_o_swap_reloc_out
  99 };
 100
 101 const bfd_target TARGET_NAME =
 102 {
 103   TARGET_STRING,                /* Name.  */
 104   bfd_target_mach_o_flavour,
 105 #if TARGET_BIG_ENDIAN
 106   BFD_ENDIAN_BIG,               /* Target byte order.  */
 107   BFD_ENDIAN_BIG,               /* Target headers byte order.  */
 108 #else
 109   BFD_ENDIAN_LITTLE,            /* Target byte order.  */
 110   BFD_ENDIAN_LITTLE,            /* Target headers byte order.  */
 111 #endif
 112   (HAS_RELOC | EXEC_P |         /* Object flags.  */
 113    HAS_LINENO | HAS_DEBUG |
 114    HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
 115   (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
 116    | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags.  */
 117   '_',                          /* symbol_leading_char.  */
 118   ' ',                          /* ar_pad_char.  */
 119   16,                           /* ar_max_namelen.  */
 120
 121 #if TARGET_BIG_ENDIAN
 122   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 123   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 124   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Data.  */
 125   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 126   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 127   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Hdrs.  */
 128 #else
 129   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 130   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 131   bfd_getl16, bfd_getl_signed_16, bfd_putl16,   /* data */
 132   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 133   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 134   bfd_getl16, bfd_getl_signed_16, bfd_putl16,   /* hdrs */
 135 #endif /* TARGET_BIG_ENDIAN */
 136
 137   {                             /* bfd_check_format.  */
 138 #if TARGET_ARCHIVE
 139     _bfd_dummy_target,
 140     _bfd_dummy_target,
 141     bfd_mach_o_archive_p,
 142     _bfd_dummy_target,
 143 #else
 144     _bfd_dummy_target,
 145     bfd_mach_o_object_p,
 146     bfd_generic_archive_p,
 147     bfd_mach_o_core_p
 148 #endif
 149   },
 150   {                             /* bfd_set_format.  */
 151     bfd_false,
 152     bfd_mach_o_mkobject,
 153     _bfd_generic_mkarchive,
 154     bfd_mach_o_mkobject,
 155   },
 156   {                             /* bfd_write_contents.  */
 157     bfd_false,
 158     bfd_mach_o_write_contents,
 159     _bfd_write_archive_contents,
 160     bfd_mach_o_write_contents,
 161   },
 162
 163   BFD_JUMP_TABLE_GENERIC (bfd_mach_o),
 164   BFD_JUMP_TABLE_COPY (bfd_mach_o),
 165   BFD_JUMP_TABLE_CORE (bfd_mach_o),
 166 #if TARGET_ARCHIVE
 167   BFD_JUMP_TABLE_ARCHIVE (bfd_mach_o),
 168 #else
 169   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd),
 170 #endif
 171   BFD_JUMP_TABLE_SYMBOLS (bfd_mach_o),
 172   BFD_JUMP_TABLE_RELOCS (bfd_mach_o),
 173   BFD_JUMP_TABLE_WRITE (bfd_mach_o),
 174   BFD_JUMP_TABLE_LINK (bfd_mach_o),
 175   BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
 176
 177   /* Alternative endian target.  */
 178   NULL,
 179
 180   /* Back-end data.  */
 181   &TARGET_NAME_BACKEND
 182 };
 183