Commit | Line | Data |
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81187b54 | 1 | /* Target definitions for 32-bit ELF |
dfc1c006 | 2 | Copyright 1993, 1994 Free Software Foundation, Inc. |
81187b54 KR |
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 | ||
6812b607 ILT |
28 | #define bfd_elf32_close_and_cleanup _bfd_generic_close_and_cleanup |
29 | #define bfd_elf32_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
30 | #ifndef bfd_elf32_get_section_contents | |
31 | #define bfd_elf32_get_section_contents _bfd_generic_get_section_contents | |
ae06054e | 32 | #endif |
9942e684 | 33 | |
9942e684 | 34 | #define bfd_elf32_bfd_get_relocated_section_contents \ |
81187b54 | 35 | bfd_generic_get_relocated_section_contents |
9942e684 | 36 | #define bfd_elf32_bfd_relax_section bfd_generic_relax_section |
9942e684 | 37 | #define bfd_elf32_bfd_make_debug_symbol \ |
81187b54 KR |
38 | ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr) |
39 | ||
5b3577cb JL |
40 | #ifndef bfd_elf32_bfd_copy_private_section_data |
41 | #define bfd_elf32_bfd_copy_private_section_data \ | |
42 | ((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_true) | |
43 | #endif | |
44 | #ifndef bfd_elf32_bfd_copy_private_bfd_data | |
45 | #define bfd_elf32_bfd_copy_private_bfd_data \ | |
46 | ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true) | |
47 | #endif | |
d5fb1e2a MM |
48 | #ifndef bfd_elf32_bfd_merge_private_bfd_data |
49 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
50 | ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true) | |
51 | #endif | |
52 | #ifndef bfd_elf32_bfd_set_private_flags | |
53 | #define bfd_elf32_bfd_set_private_flags \ | |
54 | ((boolean (*) PARAMS ((bfd *, flagword))) bfd_true) | |
55 | #endif | |
5b3577cb JL |
56 | #ifndef bfd_elf32_bfd_is_local_label |
57 | #define bfd_elf32_bfd_is_local_label bfd_generic_is_local_label | |
58 | #endif | |
59 | ||
cb71adf1 PS |
60 | #ifndef bfd_elf32_get_dynamic_reloc_upper_bound |
61 | #define bfd_elf32_get_dynamic_reloc_upper_bound \ | |
62 | _bfd_nodynamic_get_dynamic_reloc_upper_bound | |
63 | #endif | |
64 | #ifndef bfd_elf32_canonicalize_dynamic_reloc | |
65 | #define bfd_elf32_canonicalize_dynamic_reloc \ | |
66 | _bfd_nodynamic_canonicalize_dynamic_reloc | |
67 | #endif | |
68 | ||
6ec3bb6a ILT |
69 | #ifdef elf_backend_relocate_section |
70 | #ifndef bfd_elf32_bfd_link_hash_table_create | |
71 | #define bfd_elf32_bfd_link_hash_table_create _bfd_elf_link_hash_table_create | |
72 | #endif | |
73 | #else /* ! defined (elf_backend_relocate_section) */ | |
74 | /* If no backend relocate_section routine, use the generic linker. */ | |
75 | #ifndef bfd_elf32_bfd_link_hash_table_create | |
76 | #define bfd_elf32_bfd_link_hash_table_create \ | |
77 | _bfd_generic_link_hash_table_create | |
78 | #endif | |
79 | #ifndef bfd_elf32_bfd_link_add_symbols | |
80 | #define bfd_elf32_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
81 | #endif | |
82 | #ifndef bfd_elf32_bfd_final_link | |
83 | #define bfd_elf32_bfd_final_link _bfd_generic_final_link | |
84 | #endif | |
85 | #endif /* ! defined (elf_backend_relocate_section) */ | |
86 | ||
b3024965 KR |
87 | #ifndef elf_info_to_howto_rel |
88 | #define elf_info_to_howto_rel 0 | |
89 | #endif | |
90 | ||
91 | #ifndef ELF_MAXPAGESIZE | |
92 | #define ELF_MAXPAGESIZE 1 | |
93 | #endif | |
94 | ||
6ec3bb6a ILT |
95 | #ifndef elf_backend_collect |
96 | #define elf_backend_collect false | |
97 | #endif | |
98 | ||
643e9fc7 ILT |
99 | #ifndef elf_backend_sym_is_global |
100 | #define elf_backend_sym_is_global 0 | |
101 | #endif | |
a5ccdad1 | 102 | #ifndef elf_backend_object_p |
643e9fc7 | 103 | #define elf_backend_object_p 0 |
a5ccdad1 | 104 | #endif |
e2a422b8 | 105 | #ifndef elf_backend_symbol_processing |
643e9fc7 | 106 | #define elf_backend_symbol_processing 0 |
e2a422b8 KR |
107 | #endif |
108 | #ifndef elf_backend_symbol_table_processing | |
643e9fc7 | 109 | #define elf_backend_symbol_table_processing 0 |
e2a422b8 KR |
110 | #endif |
111 | #ifndef elf_backend_section_processing | |
643e9fc7 | 112 | #define elf_backend_section_processing 0 |
e2a422b8 KR |
113 | #endif |
114 | #ifndef elf_backend_section_from_shdr | |
643e9fc7 | 115 | #define elf_backend_section_from_shdr 0 |
e2a422b8 KR |
116 | #endif |
117 | #ifndef elf_backend_fake_sections | |
643e9fc7 | 118 | #define elf_backend_fake_sections 0 |
e2a422b8 KR |
119 | #endif |
120 | #ifndef elf_backend_section_from_bfd_section | |
643e9fc7 ILT |
121 | #define elf_backend_section_from_bfd_section 0 |
122 | #endif | |
6ec3bb6a ILT |
123 | #ifndef elf_backend_add_symbol_hook |
124 | #define elf_backend_add_symbol_hook 0 | |
125 | #endif | |
ff5a090f JL |
126 | #ifndef elf_backend_link_output_symbol_hook |
127 | #define elf_backend_link_output_symbol_hook 0 | |
128 | #endif | |
013dec1a ILT |
129 | #ifndef elf_backend_create_dynamic_sections |
130 | #define elf_backend_create_dynamic_sections 0 | |
131 | #endif | |
374d2ef9 ILT |
132 | #ifndef elf_backend_check_relocs |
133 | #define elf_backend_check_relocs 0 | |
134 | #endif | |
013dec1a ILT |
135 | #ifndef elf_backend_adjust_dynamic_symbol |
136 | #define elf_backend_adjust_dynamic_symbol 0 | |
137 | #endif | |
138 | #ifndef elf_backend_size_dynamic_sections | |
139 | #define elf_backend_size_dynamic_sections 0 | |
140 | #endif | |
6ec3bb6a ILT |
141 | #ifndef elf_backend_relocate_section |
142 | #define elf_backend_relocate_section 0 | |
143 | #endif | |
013dec1a ILT |
144 | #ifndef elf_backend_finish_dynamic_symbol |
145 | #define elf_backend_finish_dynamic_symbol 0 | |
146 | #endif | |
147 | #ifndef elf_backend_finish_dynamic_sections | |
148 | #define elf_backend_finish_dynamic_sections 0 | |
149 | #endif | |
99a6c761 JL |
150 | #ifndef elf_backend_begin_write_processing |
151 | #define elf_backend_begin_write_processing 0 | |
152 | #endif | |
643e9fc7 ILT |
153 | #ifndef elf_backend_final_write_processing |
154 | #define elf_backend_final_write_processing 0 | |
e2a422b8 | 155 | #endif |
95469b02 | 156 | #ifndef elf_backend_ecoff_debug_swap |
643e9fc7 | 157 | #define elf_backend_ecoff_debug_swap 0 |
95469b02 | 158 | #endif |
e2a422b8 | 159 | |
8c9bfee3 MM |
160 | #ifndef ELF_MACHINE_ALT1 |
161 | #define ELF_MACHINE_ALT1 0 | |
162 | #endif | |
163 | ||
164 | #ifndef ELF_MACHINE_ALT2 | |
165 | #define ELF_MACHINE_ALT2 0 | |
166 | #endif | |
167 | ||
268f94ac | 168 | static CONST struct elf_backend_data elf32_bed = |
81187b54 | 169 | { |
7050286d KR |
170 | #ifdef USE_REL |
171 | 0, /* use_rela_p */ | |
172 | #else | |
173 | 1, /* use_rela_p */ | |
174 | #endif | |
175 | 0, /* elf_64_p */ | |
176 | ELF_ARCH, /* arch */ | |
a5ccdad1 | 177 | ELF_MACHINE_CODE, /* elf_machine_code */ |
95469b02 | 178 | ELF_MAXPAGESIZE, /* maxpagesize */ |
6ec3bb6a | 179 | elf_backend_collect, |
643e9fc7 ILT |
180 | elf_info_to_howto, |
181 | elf_info_to_howto_rel, | |
182 | elf_backend_sym_is_global, | |
183 | elf_backend_object_p, | |
184 | elf_backend_symbol_processing, | |
185 | elf_backend_symbol_table_processing, | |
186 | elf_backend_section_processing, | |
187 | elf_backend_section_from_shdr, | |
188 | elf_backend_fake_sections, | |
189 | elf_backend_section_from_bfd_section, | |
6ec3bb6a | 190 | elf_backend_add_symbol_hook, |
ff5a090f | 191 | elf_backend_link_output_symbol_hook, |
013dec1a | 192 | elf_backend_create_dynamic_sections, |
374d2ef9 | 193 | elf_backend_check_relocs, |
013dec1a ILT |
194 | elf_backend_adjust_dynamic_symbol, |
195 | elf_backend_size_dynamic_sections, | |
6ec3bb6a | 196 | elf_backend_relocate_section, |
013dec1a ILT |
197 | elf_backend_finish_dynamic_symbol, |
198 | elf_backend_finish_dynamic_sections, | |
99a6c761 | 199 | elf_backend_begin_write_processing, |
643e9fc7 | 200 | elf_backend_final_write_processing, |
8c9bfee3 MM |
201 | elf_backend_ecoff_debug_swap, |
202 | ELF_MACHINE_ALT1, | |
203 | ELF_MACHINE_ALT2 | |
81187b54 KR |
204 | }; |
205 | ||
206 | #ifdef TARGET_BIG_SYM | |
2f3508ad | 207 | const bfd_target TARGET_BIG_SYM = |
81187b54 KR |
208 | { |
209 | /* name: identify kind of target */ | |
210 | TARGET_BIG_NAME, | |
211 | ||
212 | /* flavour: general indication about file */ | |
213 | bfd_target_elf_flavour, | |
214 | ||
215 | /* byteorder_big_p: data is big endian */ | |
216 | true, | |
217 | ||
218 | /* header_byteorder_big_p: header is also big endian */ | |
219 | true, | |
220 | ||
221 | /* object_flags: mask of all file flags */ | |
222 | (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS | | |
fa15568a | 223 | DYNAMIC | WP_TEXT | D_PAGED), |
81187b54 KR |
224 | |
225 | /* section_flags: mask of all section flags */ | |
226 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY | | |
d6e5f950 | 227 | SEC_CODE | SEC_DATA | SEC_DEBUGGING), |
81187b54 KR |
228 | |
229 | /* leading_symbol_char: is the first char of a user symbol | |
230 | predictable, and if so what is it */ | |
231 | 0, | |
232 | ||
233 | /* ar_pad_char: pad character for filenames within an archive header | |
234 | FIXME: this really has nothing to do with ELF, this is a characteristic | |
235 | of the archiver and/or os and should be independently tunable */ | |
236 | '/', | |
237 | ||
238 | /* ar_max_namelen: maximum number of characters in an archive header | |
239 | FIXME: this really has nothing to do with ELF, this is a characteristic | |
240 | of the archiver and should be independently tunable. This value is | |
241 | a WAG (wild a** guess) */ | |
7a0c782d | 242 | 14, |
81187b54 KR |
243 | |
244 | /* align_power_min: minimum alignment restriction for any section | |
245 | FIXME: this value may be target machine dependent */ | |
246 | 3, | |
247 | ||
248 | /* Routines to byte-swap various sized integers from the data sections */ | |
23f44e6f ILT |
249 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
250 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
251 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, | |
81187b54 KR |
252 | |
253 | /* Routines to byte-swap various sized integers from the file headers */ | |
23f44e6f ILT |
254 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
255 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
256 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, | |
81187b54 KR |
257 | |
258 | /* bfd_check_format: check the format of a file being read */ | |
259 | { _bfd_dummy_target, /* unknown format */ | |
9942e684 | 260 | bfd_elf32_object_p, /* assembler/linker output (object file) */ |
81187b54 | 261 | bfd_generic_archive_p, /* an archive */ |
9942e684 | 262 | bfd_elf32_core_file_p /* a core file */ |
81187b54 KR |
263 | }, |
264 | ||
265 | /* bfd_set_format: set the format of a file being written */ | |
266 | { bfd_false, | |
998ce1e0 | 267 | bfd_elf_mkobject, |
81187b54 KR |
268 | _bfd_generic_mkarchive, |
269 | bfd_false | |
270 | }, | |
271 | ||
272 | /* bfd_write_contents: write cached information into a file being written */ | |
273 | { bfd_false, | |
9942e684 | 274 | bfd_elf32_write_object_contents, |
81187b54 KR |
275 | _bfd_write_archive_contents, |
276 | bfd_false | |
277 | }, | |
278 | ||
6812b607 ILT |
279 | BFD_JUMP_TABLE_GENERIC (bfd_elf32), |
280 | BFD_JUMP_TABLE_COPY (bfd_elf32), | |
281 | BFD_JUMP_TABLE_CORE (bfd_elf32), | |
282 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
283 | BFD_JUMP_TABLE_SYMBOLS (bfd_elf32), | |
284 | BFD_JUMP_TABLE_RELOCS (bfd_elf32), | |
285 | BFD_JUMP_TABLE_WRITE (bfd_elf32), | |
286 | BFD_JUMP_TABLE_LINK (bfd_elf32), | |
cb71adf1 | 287 | BFD_JUMP_TABLE_DYNAMIC (bfd_elf32), |
81187b54 KR |
288 | |
289 | /* backend_data: */ | |
9942e684 | 290 | (PTR) &elf32_bed, |
81187b54 KR |
291 | }; |
292 | #endif | |
293 | ||
294 | #ifdef TARGET_LITTLE_SYM | |
2f3508ad | 295 | const bfd_target TARGET_LITTLE_SYM = |
81187b54 KR |
296 | { |
297 | /* name: identify kind of target */ | |
298 | TARGET_LITTLE_NAME, | |
299 | ||
300 | /* flavour: general indication about file */ | |
301 | bfd_target_elf_flavour, | |
302 | ||
303 | /* byteorder_big_p: data is big endian */ | |
304 | false, /* Nope -- this one's little endian */ | |
305 | ||
306 | /* header_byteorder_big_p: header is also big endian */ | |
307 | false, /* Nope -- this one's little endian */ | |
308 | ||
309 | /* object_flags: mask of all file flags */ | |
310 | (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS | | |
fa15568a | 311 | DYNAMIC | WP_TEXT | D_PAGED), |
81187b54 KR |
312 | |
313 | /* section_flags: mask of all section flags */ | |
314 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY | | |
d6e5f950 | 315 | SEC_CODE | SEC_DATA | SEC_DEBUGGING), |
81187b54 KR |
316 | |
317 | /* leading_symbol_char: is the first char of a user symbol | |
318 | predictable, and if so what is it */ | |
319 | 0, | |
320 | ||
321 | /* ar_pad_char: pad character for filenames within an archive header | |
322 | FIXME: this really has nothing to do with ELF, this is a characteristic | |
323 | of the archiver and/or os and should be independently tunable */ | |
324 | '/', | |
325 | ||
326 | /* ar_max_namelen: maximum number of characters in an archive header | |
327 | FIXME: this really has nothing to do with ELF, this is a characteristic | |
328 | of the archiver and should be independently tunable. This value is | |
329 | a WAG (wild a** guess) */ | |
7a0c782d | 330 | 14, |
81187b54 KR |
331 | |
332 | /* align_power_min: minimum alignment restriction for any section | |
333 | FIXME: this value may be target machine dependent */ | |
334 | 3, | |
335 | ||
336 | /* Routines to byte-swap various sized integers from the data sections */ | |
23f44e6f ILT |
337 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
338 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
339 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, | |
81187b54 KR |
340 | |
341 | /* Routines to byte-swap various sized integers from the file headers */ | |
23f44e6f ILT |
342 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
343 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
344 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, | |
81187b54 KR |
345 | |
346 | /* bfd_check_format: check the format of a file being read */ | |
347 | { _bfd_dummy_target, /* unknown format */ | |
9942e684 | 348 | bfd_elf32_object_p, /* assembler/linker output (object file) */ |
81187b54 | 349 | bfd_generic_archive_p, /* an archive */ |
9942e684 | 350 | bfd_elf32_core_file_p /* a core file */ |
81187b54 KR |
351 | }, |
352 | ||
353 | /* bfd_set_format: set the format of a file being written */ | |
354 | { bfd_false, | |
998ce1e0 | 355 | bfd_elf_mkobject, |
81187b54 KR |
356 | _bfd_generic_mkarchive, |
357 | bfd_false | |
358 | }, | |
359 | ||
360 | /* bfd_write_contents: write cached information into a file being written */ | |
361 | { bfd_false, | |
9942e684 | 362 | bfd_elf32_write_object_contents, |
81187b54 KR |
363 | _bfd_write_archive_contents, |
364 | bfd_false | |
365 | }, | |
366 | ||
6812b607 ILT |
367 | BFD_JUMP_TABLE_GENERIC (bfd_elf32), |
368 | BFD_JUMP_TABLE_COPY (bfd_elf32), | |
369 | BFD_JUMP_TABLE_CORE (bfd_elf32), | |
370 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
371 | BFD_JUMP_TABLE_SYMBOLS (bfd_elf32), | |
372 | BFD_JUMP_TABLE_RELOCS (bfd_elf32), | |
373 | BFD_JUMP_TABLE_WRITE (bfd_elf32), | |
374 | BFD_JUMP_TABLE_LINK (bfd_elf32), | |
cb71adf1 | 375 | BFD_JUMP_TABLE_DYNAMIC (bfd_elf32), |
81187b54 KR |
376 | |
377 | /* backend_data: */ | |
9942e684 | 378 | (PTR) &elf32_bed, |
81187b54 KR |
379 | }; |
380 | #endif |