1 /* Mach-O support for BFD. 2 Copyright (C) 1999-2014 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_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol 35 #define bfd_mach_o_read_minisymbols _bfd_generic_read_minisymbols 36 #define bfd_mach_o_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol 37 #define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents 38 #define bfd_mach_o_bfd_relax_section bfd_generic_relax_section 39 #define bfd_mach_o_bfd_link_hash_table_create _bfd_generic_link_hash_table_create 40 #define bfd_mach_o_bfd_link_add_symbols _bfd_generic_link_add_symbols 41 #define bfd_mach_o_bfd_link_just_syms _bfd_generic_link_just_syms 42 #define bfd_mach_o_bfd_copy_link_hash_symbol_type \ 43 _bfd_generic_copy_link_hash_symbol_type 44 #define bfd_mach_o_bfd_final_link _bfd_generic_final_link 45 #define bfd_mach_o_bfd_link_split_section _bfd_generic_link_split_section 46 #define bfd_mach_o_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data 47 #define bfd_mach_o_bfd_set_private_flags bfd_mach_o_bfd_set_private_flags 48 #define bfd_mach_o_get_section_contents _bfd_generic_get_section_contents 49 #define bfd_mach_o_bfd_gc_sections bfd_generic_gc_sections 50 #define bfd_mach_o_bfd_lookup_section_flags bfd_generic_lookup_section_flags 51 #define bfd_mach_o_bfd_merge_sections bfd_generic_merge_sections 52 #define bfd_mach_o_bfd_is_group_section bfd_generic_is_group_section 53 #define bfd_mach_o_bfd_discard_group bfd_generic_discard_group 54 #define bfd_mach_o_section_already_linked _bfd_generic_section_already_linked 55 #define bfd_mach_o_bfd_define_common_symbol bfd_generic_define_common_symbol 56 #define bfd_mach_o_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data 57 #define bfd_mach_o_core_file_matches_executable_p generic_core_file_matches_executable_p 58 #define bfd_mach_o_core_file_pid _bfd_nocore_core_file_pid 59 60 #define bfd_mach_o_get_dynamic_symtab_upper_bound bfd_mach_o_get_symtab_upper_bound 61 #define bfd_mach_o_canonicalize_dynamic_symtab bfd_mach_o_canonicalize_symtab 62 63 #define TARGET_NAME_BACKEND XCONCAT2(TARGET_NAME,_backend) 64 65 #endif /* MACH_O_TARGET_COMMON_DEFINED */ 66 67 #ifndef TARGET_NAME 68 #error TARGET_NAME must be defined 69 #endif /* TARGET_NAME */ 70 71 #ifndef TARGET_STRING 72 #error TARGET_STRING must be defined 73 #endif /* TARGET_STRING */ 74 75 #ifndef TARGET_ARCHITECTURE 76 #error TARGET_ARCHITECTURE must be defined 77 #endif /* TARGET_ARCHITECTURE */ 78 79 #ifndef TARGET_BIG_ENDIAN 80 #error TARGET_BIG_ENDIAN must be defined 81 #endif /* TARGET_BIG_ENDIAN */ 82 83 #ifndef TARGET_ARCHIVE 84 #error TARGET_ARCHIVE must be defined 85 #endif /* TARGET_ARCHIVE */ 86 87 #ifndef TARGET_PAGESIZE 88 #error TARGET_PAGESIZE must be defined 89 #endif 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 TARGET_ARCHITECTURE, 98 TARGET_PAGESIZE, 99 bfd_mach_o_swap_reloc_in, 100 bfd_mach_o_swap_reloc_out, 101 bfd_mach_o_print_thread, 102 bfd_mach_o_tgt_seg_table, 103 bfd_mach_o_section_type_valid_for_tgt 104 }; 105 106 const bfd_target TARGET_NAME = 107 { 108 TARGET_STRING, /* Name. */ 109 bfd_target_mach_o_flavour, 110 #if TARGET_BIG_ENDIAN 111 BFD_ENDIAN_BIG, /* Target byte order. */ 112 BFD_ENDIAN_BIG, /* Target headers byte order. */ 113 #else 114 BFD_ENDIAN_LITTLE, /* Target byte order. */ 115 BFD_ENDIAN_LITTLE, /* Target headers byte order. */ 116 #endif 117 (HAS_RELOC | EXEC_P | /* Object flags. */ 118 HAS_LINENO | HAS_DEBUG | 119 HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED), 120 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS 121 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */ 122 '_', /* symbol_leading_char. */ 123 ' ', /* ar_pad_char. */ 124 16, /* ar_max_namelen. */ 125 TARGET_PRIORITY, /* match priority. */ 126 127 #if TARGET_BIG_ENDIAN 128 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 129 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 130 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */ 131 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 132 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 133 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Hdrs. */ 134 #else 135 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 136 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 137 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ 138 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 139 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 140 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ 141 #endif /* TARGET_BIG_ENDIAN */ 142 143 { /* bfd_check_format. */ 144 #if TARGET_ARCHIVE 145 _bfd_dummy_target, 146 _bfd_dummy_target, 147 bfd_mach_o_archive_p, 148 _bfd_dummy_target, 149 #else 150 _bfd_dummy_target, 151 bfd_mach_o_object_p, 152 bfd_generic_archive_p, 153 bfd_mach_o_core_p 154 #endif 155 }, 156 { /* bfd_set_format. */ 157 bfd_false, 158 bfd_mach_o_mkobject, 159 _bfd_generic_mkarchive, 160 bfd_mach_o_mkobject, 161 }, 162 { /* bfd_write_contents. */ 163 bfd_false, 164 bfd_mach_o_write_contents, 165 _bfd_write_archive_contents, 166 bfd_mach_o_write_contents, 167 }, 168 169 BFD_JUMP_TABLE_GENERIC (bfd_mach_o), 170 BFD_JUMP_TABLE_COPY (bfd_mach_o), 171 BFD_JUMP_TABLE_CORE (bfd_mach_o), 172 #if TARGET_ARCHIVE 173 BFD_JUMP_TABLE_ARCHIVE (bfd_mach_o), 174 #else 175 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44), 176 #endif 177 BFD_JUMP_TABLE_SYMBOLS (bfd_mach_o), 178 BFD_JUMP_TABLE_RELOCS (bfd_mach_o), 179 BFD_JUMP_TABLE_WRITE (bfd_mach_o), 180 BFD_JUMP_TABLE_LINK (bfd_mach_o), 181 BFD_JUMP_TABLE_DYNAMIC (bfd_mach_o), 182 183 /* Alternative endian target. */ 184 NULL, 185 186 /* Back-end data. */ 187 &TARGET_NAME_BACKEND 188 }; 189 190
