bfd/mach-o-target.c

   1 /* Mach-O support for BFD.
   2    Copyright 1999, 2000, 2001, 2002, 2005, 2007, 2008, 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_copy_link_hash_symbol_type \
  57   _bfd_generic_copy_link_hash_symbol_type
  58 #define bfd_mach_o_bfd_final_link                     _bfd_generic_final_link
  59 #define bfd_mach_o_bfd_link_split_section             _bfd_generic_link_split_section
  60 #define bfd_mach_o_bfd_merge_private_bfd_data         _bfd_generic_bfd_merge_private_bfd_data
  61 #define bfd_mach_o_bfd_set_private_flags              _bfd_generic_bfd_set_private_flags
  62 #define bfd_mach_o_get_section_contents               _bfd_generic_get_section_contents
  63 #define bfd_mach_o_bfd_gc_sections                    bfd_generic_gc_sections
  64 #define bfd_mach_o_bfd_merge_sections                 bfd_generic_merge_sections
  65 #define bfd_mach_o_bfd_is_group_section               bfd_generic_is_group_section
  66 #define bfd_mach_o_bfd_discard_group                  bfd_generic_discard_group
  67 #define bfd_mach_o_section_already_linked             _bfd_generic_section_already_linked
  68 #define bfd_mach_o_bfd_define_common_symbol           bfd_generic_define_common_symbol
  69 #define bfd_mach_o_bfd_copy_private_header_data       _bfd_generic_bfd_copy_private_header_data
  70 #define bfd_mach_o_core_file_matches_executable_p     generic_core_file_matches_executable_p
  71
  72 #define bfd_mach_o_get_dynamic_symtab_upper_bound     bfd_mach_o_get_symtab_upper_bound
  73 #define bfd_mach_o_canonicalize_dynamic_symtab        bfd_mach_o_canonicalize_symtab
  74
  75 #define TARGET_NAME_BACKEND XCONCAT2(TARGET_NAME,_backend)
  76
  77 #endif /* MACH_O_TARGET_COMMON_DEFINED */
  78
  79 #ifndef TARGET_NAME
  80 #error TARGET_NAME must be defined
  81 #endif /* TARGET_NAME */
  82
  83 #ifndef TARGET_STRING
  84 #error TARGET_STRING must be defined
  85 #endif /* TARGET_STRING */
  86
  87 #ifndef TARGET_ARCHITECTURE
  88 #error TARGET_ARCHITECTURE must be defined
  89 #endif /* TARGET_ARCHITECTURE */
  90
  91 #ifndef TARGET_BIG_ENDIAN
  92 #error TARGET_BIG_ENDIAN must be defined
  93 #endif /* TARGET_BIG_ENDIAN */
  94
  95 #ifndef TARGET_ARCHIVE
  96 #error TARGET_ARCHIVE must be defined
  97 #endif /* TARGET_ARCHIVE */
  98
  99 #if ((TARGET_ARCHIVE) && (! TARGET_BIG_ENDIAN))
 100 #error Mach-O fat files must always be big-endian.
 101 #endif /* ((TARGET_ARCHIVE) && (! TARGET_BIG_ENDIAN)) */
 102
 103 static const bfd_mach_o_backend_data TARGET_NAME_BACKEND =
 104 {
 105   TARGET_ARCHITECTURE,
 106   bfd_mach_o_swap_reloc_in,
 107   bfd_mach_o_swap_reloc_out,
 108   bfd_mach_o_print_thread
 109 };
 110
 111 const bfd_target TARGET_NAME =
 112 {
 113   TARGET_STRING,                /* Name.  */
 114   bfd_target_mach_o_flavour,
 115 #if TARGET_BIG_ENDIAN
 116   BFD_ENDIAN_BIG,               /* Target byte order.  */
 117   BFD_ENDIAN_BIG,               /* Target headers byte order.  */
 118 #else
 119   BFD_ENDIAN_LITTLE,            /* Target byte order.  */
 120   BFD_ENDIAN_LITTLE,            /* Target headers byte order.  */
 121 #endif
 122   (HAS_RELOC | EXEC_P |         /* Object flags.  */
 123    HAS_LINENO | HAS_DEBUG |
 124    HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
 125   (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
 126    | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags.  */
 127   '_',                          /* symbol_leading_char.  */
 128   ' ',                          /* ar_pad_char.  */
 129   16,                           /* ar_max_namelen.  */
 130
 131 #if TARGET_BIG_ENDIAN
 132   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 133   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 134   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Data.  */
 135   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 136   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 137   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Hdrs.  */
 138 #else
 139   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 140   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 141   bfd_getl16, bfd_getl_signed_16, bfd_putl16,   /* data */
 142   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 143   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 144   bfd_getl16, bfd_getl_signed_16, bfd_putl16,   /* hdrs */
 145 #endif /* TARGET_BIG_ENDIAN */
 146
 147   {                             /* bfd_check_format.  */
 148 #if TARGET_ARCHIVE
 149     _bfd_dummy_target,
 150     _bfd_dummy_target,
 151     bfd_mach_o_archive_p,
 152     _bfd_dummy_target,
 153 #else
 154     _bfd_dummy_target,
 155     bfd_mach_o_object_p,
 156     bfd_generic_archive_p,
 157     bfd_mach_o_core_p
 158 #endif
 159   },
 160   {                             /* bfd_set_format.  */
 161     bfd_false,
 162     bfd_mach_o_mkobject,
 163     _bfd_generic_mkarchive,
 164     bfd_mach_o_mkobject,
 165   },
 166   {                             /* bfd_write_contents.  */
 167     bfd_false,
 168     bfd_mach_o_write_contents,
 169     _bfd_write_archive_contents,
 170     bfd_mach_o_write_contents,
 171   },
 172
 173   BFD_JUMP_TABLE_GENERIC (bfd_mach_o),
 174   BFD_JUMP_TABLE_COPY (bfd_mach_o),
 175   BFD_JUMP_TABLE_CORE (bfd_mach_o),
 176 #if TARGET_ARCHIVE
 177   BFD_JUMP_TABLE_ARCHIVE (bfd_mach_o),
 178 #else
 179   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd),
 180 #endif
 181   BFD_JUMP_TABLE_SYMBOLS (bfd_mach_o),
 182   BFD_JUMP_TABLE_RELOCS (bfd_mach_o),
 183   BFD_JUMP_TABLE_WRITE (bfd_mach_o),
 184   BFD_JUMP_TABLE_LINK (bfd_mach_o),
 185   BFD_JUMP_TABLE_DYNAMIC (bfd_mach_o),
 186
 187   /* Alternative endian target.  */
 188   NULL,
 189
 190   /* Back-end data.  */
 191   &TARGET_NAME_BACKEND
 192 };
 193