| 1 | /* Target definitions for 32-bit ELF |
| 2 | Copyright 1993 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 | /* Archives are generic or unimplemented. */ |
| 29 | #ifndef bfd_elf32_slurp_armap |
| 30 | #define bfd_elf32_slurp_armap bfd_slurp_coff_armap |
| 31 | #endif |
| 32 | #define bfd_elf32_slurp_extended_name_table _bfd_slurp_extended_name_table |
| 33 | #define bfd_elf32_truncate_arname bfd_dont_truncate_arname |
| 34 | #define bfd_elf32_openr_next_archived_file bfd_generic_openr_next_archived_file |
| 35 | #define bfd_elf32_generic_stat_arch_elt bfd_generic_stat_arch_elt |
| 36 | #ifndef bfd_elf32_write_armap |
| 37 | #define bfd_elf32_write_armap coff_write_armap |
| 38 | #endif |
| 39 | |
| 40 | /* Ordinary section reading and writing */ |
| 41 | #define bfd_elf32_get_section_contents bfd_generic_get_section_contents |
| 42 | #define bfd_elf32_close_and_cleanup bfd_generic_close_and_cleanup |
| 43 | |
| 44 | #define bfd_elf32_bfd_debug_info_start bfd_void |
| 45 | #define bfd_elf32_bfd_debug_info_end bfd_void |
| 46 | #define bfd_elf32_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void |
| 47 | #define bfd_elf32_bfd_get_relocated_section_contents \ |
| 48 | bfd_generic_get_relocated_section_contents |
| 49 | #define bfd_elf32_bfd_relax_section bfd_generic_relax_section |
| 50 | #define bfd_elf32_bfd_make_debug_symbol \ |
| 51 | ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr) |
| 52 | #ifndef bfd_elf32_bfd_link_hash_table_create |
| 53 | #define bfd_elf32_bfd_link_hash_table_create \ |
| 54 | _bfd_generic_link_hash_table_create |
| 55 | #endif |
| 56 | #ifndef bfd_elf32_bfd_link_add_symbols |
| 57 | #define bfd_elf32_bfd_link_add_symbols _bfd_generic_link_add_symbols |
| 58 | #endif |
| 59 | #ifndef bfd_elf32_bfd_final_link |
| 60 | #define bfd_elf32_bfd_final_link _bfd_generic_final_link |
| 61 | #endif |
| 62 | |
| 63 | #ifndef elf_info_to_howto_rel |
| 64 | #define elf_info_to_howto_rel 0 |
| 65 | #endif |
| 66 | |
| 67 | #ifndef ELF_MAXPAGESIZE |
| 68 | #define ELF_MAXPAGESIZE 1 |
| 69 | #endif |
| 70 | |
| 71 | #ifndef elf_backend_sym_is_global |
| 72 | #define elf_backend_sym_is_global 0 |
| 73 | #endif |
| 74 | #ifndef elf_backend_object_p |
| 75 | #define elf_backend_object_p 0 |
| 76 | #endif |
| 77 | #ifndef elf_backend_symbol_processing |
| 78 | #define elf_backend_symbol_processing 0 |
| 79 | #endif |
| 80 | #ifndef elf_backend_symbol_table_processing |
| 81 | #define elf_backend_symbol_table_processing 0 |
| 82 | #endif |
| 83 | #ifndef elf_backend_section_processing |
| 84 | #define elf_backend_section_processing 0 |
| 85 | #endif |
| 86 | #ifndef elf_backend_section_from_shdr |
| 87 | #define elf_backend_section_from_shdr 0 |
| 88 | #endif |
| 89 | #ifndef elf_backend_fake_sections |
| 90 | #define elf_backend_fake_sections 0 |
| 91 | #endif |
| 92 | #ifndef elf_backend_section_from_bfd_section |
| 93 | #define elf_backend_section_from_bfd_section 0 |
| 94 | #endif |
| 95 | #ifndef elf_backend_final_write_processing |
| 96 | #define elf_backend_final_write_processing 0 |
| 97 | #endif |
| 98 | #ifndef elf_backend_ecoff_debug_swap |
| 99 | #define elf_backend_ecoff_debug_swap 0 |
| 100 | #endif |
| 101 | |
| 102 | static CONST struct elf_backend_data elf32_bed = |
| 103 | { |
| 104 | #ifdef USE_REL |
| 105 | 0, /* use_rela_p */ |
| 106 | #else |
| 107 | 1, /* use_rela_p */ |
| 108 | #endif |
| 109 | 0, /* elf_64_p */ |
| 110 | ELF_ARCH, /* arch */ |
| 111 | ELF_MACHINE_CODE, /* elf_machine_code */ |
| 112 | ELF_MAXPAGESIZE, /* maxpagesize */ |
| 113 | elf_info_to_howto, |
| 114 | elf_info_to_howto_rel, |
| 115 | elf_backend_sym_is_global, |
| 116 | elf_backend_object_p, |
| 117 | elf_backend_symbol_processing, |
| 118 | elf_backend_symbol_table_processing, |
| 119 | elf_backend_section_processing, |
| 120 | elf_backend_section_from_shdr, |
| 121 | elf_backend_fake_sections, |
| 122 | elf_backend_section_from_bfd_section, |
| 123 | elf_backend_final_write_processing, |
| 124 | elf_backend_ecoff_debug_swap |
| 125 | }; |
| 126 | |
| 127 | #ifdef TARGET_BIG_SYM |
| 128 | bfd_target TARGET_BIG_SYM = |
| 129 | { |
| 130 | /* name: identify kind of target */ |
| 131 | TARGET_BIG_NAME, |
| 132 | |
| 133 | /* flavour: general indication about file */ |
| 134 | bfd_target_elf_flavour, |
| 135 | |
| 136 | /* byteorder_big_p: data is big endian */ |
| 137 | true, |
| 138 | |
| 139 | /* header_byteorder_big_p: header is also big endian */ |
| 140 | true, |
| 141 | |
| 142 | /* object_flags: mask of all file flags */ |
| 143 | (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS | |
| 144 | DYNAMIC | WP_TEXT), |
| 145 | |
| 146 | /* section_flags: mask of all section flags */ |
| 147 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY | |
| 148 | SEC_CODE | SEC_DATA | SEC_DEBUGGING), |
| 149 | |
| 150 | /* leading_symbol_char: is the first char of a user symbol |
| 151 | predictable, and if so what is it */ |
| 152 | 0, |
| 153 | |
| 154 | /* ar_pad_char: pad character for filenames within an archive header |
| 155 | FIXME: this really has nothing to do with ELF, this is a characteristic |
| 156 | of the archiver and/or os and should be independently tunable */ |
| 157 | '/', |
| 158 | |
| 159 | /* ar_max_namelen: maximum number of characters in an archive header |
| 160 | FIXME: this really has nothing to do with ELF, this is a characteristic |
| 161 | of the archiver and should be independently tunable. This value is |
| 162 | a WAG (wild a** guess) */ |
| 163 | 15, |
| 164 | |
| 165 | /* align_power_min: minimum alignment restriction for any section |
| 166 | FIXME: this value may be target machine dependent */ |
| 167 | 3, |
| 168 | |
| 169 | /* Routines to byte-swap various sized integers from the data sections */ |
| 170 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 171 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 172 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, |
| 173 | |
| 174 | /* Routines to byte-swap various sized integers from the file headers */ |
| 175 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 176 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 177 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, |
| 178 | |
| 179 | /* bfd_check_format: check the format of a file being read */ |
| 180 | { _bfd_dummy_target, /* unknown format */ |
| 181 | bfd_elf32_object_p, /* assembler/linker output (object file) */ |
| 182 | bfd_generic_archive_p, /* an archive */ |
| 183 | bfd_elf32_core_file_p /* a core file */ |
| 184 | }, |
| 185 | |
| 186 | /* bfd_set_format: set the format of a file being written */ |
| 187 | { bfd_false, |
| 188 | bfd_elf_mkobject, |
| 189 | _bfd_generic_mkarchive, |
| 190 | bfd_false |
| 191 | }, |
| 192 | |
| 193 | /* bfd_write_contents: write cached information into a file being written */ |
| 194 | { bfd_false, |
| 195 | bfd_elf32_write_object_contents, |
| 196 | _bfd_write_archive_contents, |
| 197 | bfd_false |
| 198 | }, |
| 199 | |
| 200 | /* Initialize a jump table with the standard macro. All names start with |
| 201 | "elf" */ |
| 202 | JUMP_TABLE(bfd_elf32), |
| 203 | |
| 204 | /* backend_data: */ |
| 205 | (PTR) &elf32_bed, |
| 206 | }; |
| 207 | #endif |
| 208 | |
| 209 | #ifdef TARGET_LITTLE_SYM |
| 210 | bfd_target TARGET_LITTLE_SYM = |
| 211 | { |
| 212 | /* name: identify kind of target */ |
| 213 | TARGET_LITTLE_NAME, |
| 214 | |
| 215 | /* flavour: general indication about file */ |
| 216 | bfd_target_elf_flavour, |
| 217 | |
| 218 | /* byteorder_big_p: data is big endian */ |
| 219 | false, /* Nope -- this one's little endian */ |
| 220 | |
| 221 | /* header_byteorder_big_p: header is also big endian */ |
| 222 | false, /* Nope -- this one's little endian */ |
| 223 | |
| 224 | /* object_flags: mask of all file flags */ |
| 225 | (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS | |
| 226 | DYNAMIC | WP_TEXT), |
| 227 | |
| 228 | /* section_flags: mask of all section flags */ |
| 229 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY | |
| 230 | SEC_CODE | SEC_DATA | SEC_DEBUGGING), |
| 231 | |
| 232 | /* leading_symbol_char: is the first char of a user symbol |
| 233 | predictable, and if so what is it */ |
| 234 | 0, |
| 235 | |
| 236 | /* ar_pad_char: pad character for filenames within an archive header |
| 237 | FIXME: this really has nothing to do with ELF, this is a characteristic |
| 238 | of the archiver and/or os and should be independently tunable */ |
| 239 | '/', |
| 240 | |
| 241 | /* ar_max_namelen: maximum number of characters in an archive header |
| 242 | FIXME: this really has nothing to do with ELF, this is a characteristic |
| 243 | of the archiver and should be independently tunable. This value is |
| 244 | a WAG (wild a** guess) */ |
| 245 | 15, |
| 246 | |
| 247 | /* align_power_min: minimum alignment restriction for any section |
| 248 | FIXME: this value may be target machine dependent */ |
| 249 | 3, |
| 250 | |
| 251 | /* Routines to byte-swap various sized integers from the data sections */ |
| 252 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| 253 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| 254 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, |
| 255 | |
| 256 | /* Routines to byte-swap various sized integers from the file headers */ |
| 257 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| 258 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| 259 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, |
| 260 | |
| 261 | /* bfd_check_format: check the format of a file being read */ |
| 262 | { _bfd_dummy_target, /* unknown format */ |
| 263 | bfd_elf32_object_p, /* assembler/linker output (object file) */ |
| 264 | bfd_generic_archive_p, /* an archive */ |
| 265 | bfd_elf32_core_file_p /* a core file */ |
| 266 | }, |
| 267 | |
| 268 | /* bfd_set_format: set the format of a file being written */ |
| 269 | { bfd_false, |
| 270 | bfd_elf_mkobject, |
| 271 | _bfd_generic_mkarchive, |
| 272 | bfd_false |
| 273 | }, |
| 274 | |
| 275 | /* bfd_write_contents: write cached information into a file being written */ |
| 276 | { bfd_false, |
| 277 | bfd_elf32_write_object_contents, |
| 278 | _bfd_write_archive_contents, |
| 279 | bfd_false |
| 280 | }, |
| 281 | |
| 282 | /* Initialize a jump table with the standard macro. All names start with |
| 283 | "elf" */ |
| 284 | JUMP_TABLE(bfd_elf32), |
| 285 | |
| 286 | /* backend_data: */ |
| 287 | (PTR) &elf32_bed, |
| 288 | }; |
| 289 | #endif |