bfd/mach-o-target.c

   1 /* Mach-O support for BFD.
   2    Copyright (C) 1999-2015 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21 /* Define generic entry points here so that we don't need to duplicate the
  22    defines in every target.  But define once as this file may be included
  23    several times.  */
  24 #ifndef MACH_O_TARGET_COMMON_DEFINED
  25 #define MACH_O_TARGET_COMMON_DEFINED
  26
  27 #define bfd_mach_o_bfd_free_cached_info               _bfd_generic_bfd_free_cached_info
  28 #define bfd_mach_o_get_section_contents_in_window     _bfd_generic_get_section_contents_in_window
  29 #define bfd_mach_o_bfd_print_private_bfd_data         _bfd_generic_bfd_print_private_bfd_data
  30 #define bfd_mach_o_bfd_is_target_special_symbol       ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
  31 #define bfd_mach_o_bfd_is_local_label_name            bfd_generic_is_local_label_name
  32 #define bfd_mach_o_get_lineno                         _bfd_nosymbols_get_lineno
  33 #define bfd_mach_o_find_inliner_info                  _bfd_nosymbols_find_inliner_info
  34 #define bfd_mach_o_get_symbol_version_string          _bfd_nosymbols_get_symbol_version_string
  35 #define bfd_mach_o_bfd_make_debug_symbol              _bfd_nosymbols_bfd_make_debug_symbol
  36 #define bfd_mach_o_read_minisymbols                   _bfd_generic_read_minisymbols
  37 #define bfd_mach_o_minisymbol_to_symbol               _bfd_generic_minisymbol_to_symbol
  38 #define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
  39 #define bfd_mach_o_bfd_relax_section                  bfd_generic_relax_section
  40 #define bfd_mach_o_bfd_link_hash_table_create         _bfd_generic_link_hash_table_create
  41 #define bfd_mach_o_bfd_link_add_symbols               _bfd_generic_link_add_symbols
  42 #define bfd_mach_o_bfd_link_just_syms                 _bfd_generic_link_just_syms
  43 #define bfd_mach_o_bfd_copy_link_hash_symbol_type \
  44   _bfd_generic_copy_link_hash_symbol_type
  45 #define bfd_mach_o_bfd_final_link                     _bfd_generic_final_link
  46 #define bfd_mach_o_bfd_link_split_section             _bfd_generic_link_split_section
  47 #define bfd_mach_o_bfd_merge_private_bfd_data         _bfd_generic_bfd_merge_private_bfd_data
  48 #define bfd_mach_o_bfd_set_private_flags              bfd_mach_o_bfd_set_private_flags
  49 #define bfd_mach_o_get_section_contents               _bfd_generic_get_section_contents
  50 #define bfd_mach_o_bfd_gc_sections                    bfd_generic_gc_sections
  51 #define bfd_mach_o_bfd_lookup_section_flags           bfd_generic_lookup_section_flags
  52 #define bfd_mach_o_bfd_merge_sections                 bfd_generic_merge_sections
  53 #define bfd_mach_o_bfd_is_group_section               bfd_generic_is_group_section
  54 #define bfd_mach_o_bfd_discard_group                  bfd_generic_discard_group
  55 #define bfd_mach_o_section_already_linked             _bfd_generic_section_already_linked
  56 #define bfd_mach_o_bfd_define_common_symbol           bfd_generic_define_common_symbol
  57 #define bfd_mach_o_bfd_copy_private_bfd_data          _bfd_generic_bfd_copy_private_bfd_data
  58 #define bfd_mach_o_core_file_matches_executable_p     generic_core_file_matches_executable_p
  59 #define bfd_mach_o_core_file_pid                      _bfd_nocore_core_file_pid
  60
  61 #define bfd_mach_o_get_dynamic_symtab_upper_bound     bfd_mach_o_get_symtab_upper_bound
  62 #define bfd_mach_o_canonicalize_dynamic_symtab        bfd_mach_o_canonicalize_symtab
  63
  64 #define TARGET_NAME_BACKEND XCONCAT2(TARGET_NAME,_backend)
  65
  66 #endif /* MACH_O_TARGET_COMMON_DEFINED */
  67
  68 #ifndef TARGET_NAME
  69 #error TARGET_NAME must be defined
  70 #endif /* TARGET_NAME */
  71
  72 #ifndef TARGET_STRING
  73 #error TARGET_STRING must be defined
  74 #endif /* TARGET_STRING */
  75
  76 #ifndef TARGET_ARCHITECTURE
  77 #error TARGET_ARCHITECTURE must be defined
  78 #endif /* TARGET_ARCHITECTURE */
  79
  80 #ifndef TARGET_BIG_ENDIAN
  81 #error TARGET_BIG_ENDIAN must be defined
  82 #endif /* TARGET_BIG_ENDIAN */
  83
  84 #ifndef TARGET_ARCHIVE
  85 #error TARGET_ARCHIVE must be defined
  86 #endif /* TARGET_ARCHIVE */
  87
  88 #ifndef TARGET_PAGESIZE
  89 #error TARGET_PAGESIZE must be defined
  90 #endif
  91
  92 #if ((TARGET_ARCHIVE) && (! TARGET_BIG_ENDIAN))
  93 #error Mach-O fat files must always be big-endian.
  94 #endif /* ((TARGET_ARCHIVE) && (! TARGET_BIG_ENDIAN)) */
  95
  96 static const bfd_mach_o_backend_data TARGET_NAME_BACKEND =
  97 {
  98   TARGET_ARCHITECTURE,
  99   TARGET_PAGESIZE,
 100   bfd_mach_o_swap_reloc_in,
 101   bfd_mach_o_swap_reloc_out,
 102   bfd_mach_o_print_thread,
 103   bfd_mach_o_tgt_seg_table,
 104   bfd_mach_o_section_type_valid_for_tgt
 105 };
 106
 107 const bfd_target TARGET_NAME =
 108 {
 109   TARGET_STRING,                /* Name.  */
 110   bfd_target_mach_o_flavour,
 111 #if TARGET_BIG_ENDIAN
 112   BFD_ENDIAN_BIG,               /* Target byte order.  */
 113   BFD_ENDIAN_BIG,               /* Target headers byte order.  */
 114 #else
 115   BFD_ENDIAN_LITTLE,            /* Target byte order.  */
 116   BFD_ENDIAN_LITTLE,            /* Target headers byte order.  */
 117 #endif
 118   (HAS_RELOC | EXEC_P |         /* Object flags.  */
 119    HAS_LINENO | HAS_DEBUG |
 120    HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
 121   (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
 122    | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags.  */
 123   '_',                          /* symbol_leading_char.  */
 124   ' ',                          /* ar_pad_char.  */
 125   16,                           /* ar_max_namelen.  */
 126   TARGET_PRIORITY,      /* match priority.  */
 127
 128 #if TARGET_BIG_ENDIAN
 129   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 130   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 131   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Data.  */
 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,   /* Hdrs.  */
 135 #else
 136   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 137   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 138   bfd_getl16, bfd_getl_signed_16, bfd_putl16,   /* data */
 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,   /* hdrs */
 142 #endif /* TARGET_BIG_ENDIAN */
 143
 144   {                             /* bfd_check_format.  */
 145 #if TARGET_ARCHIVE
 146     _bfd_dummy_target,
 147     _bfd_dummy_target,
 148     bfd_mach_o_archive_p,
 149     _bfd_dummy_target,
 150 #else
 151     _bfd_dummy_target,
 152     bfd_mach_o_object_p,
 153     bfd_generic_archive_p,
 154     bfd_mach_o_core_p
 155 #endif
 156   },
 157   {                             /* bfd_set_format.  */
 158     bfd_false,
 159     bfd_mach_o_mkobject,
 160     _bfd_generic_mkarchive,
 161     bfd_mach_o_mkobject,
 162   },
 163   {                             /* bfd_write_contents.  */
 164     bfd_false,
 165     bfd_mach_o_write_contents,
 166     _bfd_write_archive_contents,
 167     bfd_mach_o_write_contents,
 168   },
 169
 170   BFD_JUMP_TABLE_GENERIC (bfd_mach_o),
 171   BFD_JUMP_TABLE_COPY (bfd_mach_o),
 172   BFD_JUMP_TABLE_CORE (bfd_mach_o),
 173 #if TARGET_ARCHIVE
 174   BFD_JUMP_TABLE_ARCHIVE (bfd_mach_o),
 175 #else
 176   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44),
 177 #endif
 178   BFD_JUMP_TABLE_SYMBOLS (bfd_mach_o),
 179   BFD_JUMP_TABLE_RELOCS (bfd_mach_o),
 180   BFD_JUMP_TABLE_WRITE (bfd_mach_o),
 181   BFD_JUMP_TABLE_LINK (bfd_mach_o),
 182   BFD_JUMP_TABLE_DYNAMIC (bfd_mach_o),
 183
 184   /* Alternative endian target.  */
 185   NULL,
 186
 187   /* Back-end data.  */
 188   &TARGET_NAME_BACKEND
 189 };
 190