1 /* Target definitions for 32-bit ELF
2 Copyright 1993, 1994 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
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.
25 There are two such structures here: one for big-endian machines and
26 one for little-endian machines. */
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
34 #define bfd_elf32_bfd_get_relocated_section_contents \
35 bfd_generic_get_relocated_section_contents
36 #define bfd_elf32_bfd_relax_section bfd_generic_relax_section
37 #define bfd_elf32_bfd_make_debug_symbol \
38 ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
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)
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)
48 #ifndef bfd_elf32_bfd_is_local_label
49 #define bfd_elf32_bfd_is_local_label bfd_generic_is_local_label
52 #ifndef bfd_elf32_get_dynamic_reloc_upper_bound
53 #define bfd_elf32_get_dynamic_reloc_upper_bound \
54 _bfd_nodynamic_get_dynamic_reloc_upper_bound
56 #ifndef bfd_elf32_canonicalize_dynamic_reloc
57 #define bfd_elf32_canonicalize_dynamic_reloc \
58 _bfd_nodynamic_canonicalize_dynamic_reloc
61 #ifdef elf_backend_relocate_section
62 #ifndef bfd_elf32_bfd_link_hash_table_create
63 #define bfd_elf32_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
65 #else /* ! defined (elf_backend_relocate_section) */
66 /* If no backend relocate_section routine, use the generic linker. */
67 #ifndef bfd_elf32_bfd_link_hash_table_create
68 #define bfd_elf32_bfd_link_hash_table_create \
69 _bfd_generic_link_hash_table_create
71 #ifndef bfd_elf32_bfd_link_add_symbols
72 #define bfd_elf32_bfd_link_add_symbols _bfd_generic_link_add_symbols
74 #ifndef bfd_elf32_bfd_final_link
75 #define bfd_elf32_bfd_final_link _bfd_generic_final_link
77 #endif /* ! defined (elf_backend_relocate_section) */
79 #ifndef elf_info_to_howto_rel
80 #define elf_info_to_howto_rel 0
83 #ifndef ELF_MAXPAGESIZE
84 #define ELF_MAXPAGESIZE 1
87 #ifndef elf_backend_collect
88 #define elf_backend_collect false
91 #ifndef elf_backend_sym_is_global
92 #define elf_backend_sym_is_global 0
94 #ifndef elf_backend_object_p
95 #define elf_backend_object_p 0
97 #ifndef elf_backend_symbol_processing
98 #define elf_backend_symbol_processing 0
100 #ifndef elf_backend_symbol_table_processing
101 #define elf_backend_symbol_table_processing 0
103 #ifndef elf_backend_section_processing
104 #define elf_backend_section_processing 0
106 #ifndef elf_backend_section_from_shdr
107 #define elf_backend_section_from_shdr 0
109 #ifndef elf_backend_fake_sections
110 #define elf_backend_fake_sections 0
112 #ifndef elf_backend_section_from_bfd_section
113 #define elf_backend_section_from_bfd_section 0
115 #ifndef elf_backend_add_symbol_hook
116 #define elf_backend_add_symbol_hook 0
118 #ifndef elf_backend_create_dynamic_sections
119 #define elf_backend_create_dynamic_sections 0
121 #ifndef elf_backend_adjust_dynamic_symbol
122 #define elf_backend_adjust_dynamic_symbol 0
124 #ifndef elf_backend_size_dynamic_sections
125 #define elf_backend_size_dynamic_sections 0
127 #ifndef elf_backend_relocate_section
128 #define elf_backend_relocate_section 0
130 #ifndef elf_backend_finish_dynamic_symbol
131 #define elf_backend_finish_dynamic_symbol 0
133 #ifndef elf_backend_finish_dynamic_sections
134 #define elf_backend_finish_dynamic_sections 0
136 #ifndef elf_backend_begin_write_processing
137 #define elf_backend_begin_write_processing 0
139 #ifndef elf_backend_final_write_processing
140 #define elf_backend_final_write_processing 0
142 #ifndef elf_backend_ecoff_debug_swap
143 #define elf_backend_ecoff_debug_swap 0
146 static CONST struct elf_backend_data elf32_bed =
155 ELF_MACHINE_CODE, /* elf_machine_code */
156 ELF_MAXPAGESIZE, /* maxpagesize */
159 elf_info_to_howto_rel,
160 elf_backend_sym_is_global,
161 elf_backend_object_p,
162 elf_backend_symbol_processing,
163 elf_backend_symbol_table_processing,
164 elf_backend_section_processing,
165 elf_backend_section_from_shdr,
166 elf_backend_fake_sections,
167 elf_backend_section_from_bfd_section,
168 elf_backend_add_symbol_hook,
169 elf_backend_create_dynamic_sections,
170 elf_backend_adjust_dynamic_symbol,
171 elf_backend_size_dynamic_sections,
172 elf_backend_relocate_section,
173 elf_backend_finish_dynamic_symbol,
174 elf_backend_finish_dynamic_sections,
175 elf_backend_begin_write_processing,
176 elf_backend_final_write_processing,
177 elf_backend_ecoff_debug_swap
180 #ifdef TARGET_BIG_SYM
181 bfd_target TARGET_BIG_SYM =
183 /* name: identify kind of target */
186 /* flavour: general indication about file */
187 bfd_target_elf_flavour,
189 /* byteorder_big_p: data is big endian */
192 /* header_byteorder_big_p: header is also big endian */
195 /* object_flags: mask of all file flags */
196 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
199 /* section_flags: mask of all section flags */
200 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
201 SEC_CODE | SEC_DATA | SEC_DEBUGGING),
203 /* leading_symbol_char: is the first char of a user symbol
204 predictable, and if so what is it */
207 /* ar_pad_char: pad character for filenames within an archive header
208 FIXME: this really has nothing to do with ELF, this is a characteristic
209 of the archiver and/or os and should be independently tunable */
212 /* ar_max_namelen: maximum number of characters in an archive header
213 FIXME: this really has nothing to do with ELF, this is a characteristic
214 of the archiver and should be independently tunable. This value is
215 a WAG (wild a** guess) */
218 /* align_power_min: minimum alignment restriction for any section
219 FIXME: this value may be target machine dependent */
222 /* Routines to byte-swap various sized integers from the data sections */
223 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
224 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
225 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
227 /* Routines to byte-swap various sized integers from the file headers */
228 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
229 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
230 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
232 /* bfd_check_format: check the format of a file being read */
233 { _bfd_dummy_target, /* unknown format */
234 bfd_elf32_object_p, /* assembler/linker output (object file) */
235 bfd_generic_archive_p, /* an archive */
236 bfd_elf32_core_file_p /* a core file */
239 /* bfd_set_format: set the format of a file being written */
242 _bfd_generic_mkarchive,
246 /* bfd_write_contents: write cached information into a file being written */
248 bfd_elf32_write_object_contents,
249 _bfd_write_archive_contents,
253 BFD_JUMP_TABLE_GENERIC (bfd_elf32),
254 BFD_JUMP_TABLE_COPY (bfd_elf32),
255 BFD_JUMP_TABLE_CORE (bfd_elf32),
256 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
257 BFD_JUMP_TABLE_SYMBOLS (bfd_elf32),
258 BFD_JUMP_TABLE_RELOCS (bfd_elf32),
259 BFD_JUMP_TABLE_WRITE (bfd_elf32),
260 BFD_JUMP_TABLE_LINK (bfd_elf32),
261 BFD_JUMP_TABLE_DYNAMIC (bfd_elf32),
268 #ifdef TARGET_LITTLE_SYM
269 bfd_target TARGET_LITTLE_SYM =
271 /* name: identify kind of target */
274 /* flavour: general indication about file */
275 bfd_target_elf_flavour,
277 /* byteorder_big_p: data is big endian */
278 false, /* Nope -- this one's little endian */
280 /* header_byteorder_big_p: header is also big endian */
281 false, /* Nope -- this one's little endian */
283 /* object_flags: mask of all file flags */
284 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
287 /* section_flags: mask of all section flags */
288 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
289 SEC_CODE | SEC_DATA | SEC_DEBUGGING),
291 /* leading_symbol_char: is the first char of a user symbol
292 predictable, and if so what is it */
295 /* ar_pad_char: pad character for filenames within an archive header
296 FIXME: this really has nothing to do with ELF, this is a characteristic
297 of the archiver and/or os and should be independently tunable */
300 /* ar_max_namelen: maximum number of characters in an archive header
301 FIXME: this really has nothing to do with ELF, this is a characteristic
302 of the archiver and should be independently tunable. This value is
303 a WAG (wild a** guess) */
306 /* align_power_min: minimum alignment restriction for any section
307 FIXME: this value may be target machine dependent */
310 /* Routines to byte-swap various sized integers from the data sections */
311 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
312 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
313 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
315 /* Routines to byte-swap various sized integers from the file headers */
316 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
317 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
318 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
320 /* bfd_check_format: check the format of a file being read */
321 { _bfd_dummy_target, /* unknown format */
322 bfd_elf32_object_p, /* assembler/linker output (object file) */
323 bfd_generic_archive_p, /* an archive */
324 bfd_elf32_core_file_p /* a core file */
327 /* bfd_set_format: set the format of a file being written */
330 _bfd_generic_mkarchive,
334 /* bfd_write_contents: write cached information into a file being written */
336 bfd_elf32_write_object_contents,
337 _bfd_write_archive_contents,
341 BFD_JUMP_TABLE_GENERIC (bfd_elf32),
342 BFD_JUMP_TABLE_COPY (bfd_elf32),
343 BFD_JUMP_TABLE_CORE (bfd_elf32),
344 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
345 BFD_JUMP_TABLE_SYMBOLS (bfd_elf32),
346 BFD_JUMP_TABLE_RELOCS (bfd_elf32),
347 BFD_JUMP_TABLE_WRITE (bfd_elf32),
348 BFD_JUMP_TABLE_LINK (bfd_elf32),
349 BFD_JUMP_TABLE_DYNAMIC (bfd_elf32),