* targets.c (bfd_target): Add _bfd_free_cached_info field.
[deliverable/binutils-gdb.git] / bfd / elf32-target.h
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 bfd_elf32_bfd_copy_private_section_data
64 #define bfd_elf32_bfd_copy_private_section_data \
65 ((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_true)
66 #endif
67 #ifndef bfd_elf32_bfd_copy_private_bfd_data
68 #define bfd_elf32_bfd_copy_private_bfd_data \
69 ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
70 #endif
71 #ifndef bfd_elf32_bfd_is_local_label
72 #define bfd_elf32_bfd_is_local_label bfd_generic_is_local_label
73 #endif
74 #ifndef bfd_elf32_bfd_free_cached_info
75 #define bfd_elf32_bfd_free_cached_info bfd_true
76 #endif
77
78 #ifndef elf_info_to_howto_rel
79 #define elf_info_to_howto_rel 0
80 #endif
81
82 #ifndef ELF_MAXPAGESIZE
83 #define ELF_MAXPAGESIZE 1
84 #endif
85
86 #ifndef elf_backend_sym_is_global
87 #define elf_backend_sym_is_global 0
88 #endif
89 #ifndef elf_backend_object_p
90 #define elf_backend_object_p 0
91 #endif
92 #ifndef elf_backend_symbol_processing
93 #define elf_backend_symbol_processing 0
94 #endif
95 #ifndef elf_backend_symbol_table_processing
96 #define elf_backend_symbol_table_processing 0
97 #endif
98 #ifndef elf_backend_section_processing
99 #define elf_backend_section_processing 0
100 #endif
101 #ifndef elf_backend_section_from_shdr
102 #define elf_backend_section_from_shdr 0
103 #endif
104 #ifndef elf_backend_fake_sections
105 #define elf_backend_fake_sections 0
106 #endif
107 #ifndef elf_backend_section_from_bfd_section
108 #define elf_backend_section_from_bfd_section 0
109 #endif
110 #ifndef elf_backend_final_write_processing
111 #define elf_backend_final_write_processing 0
112 #endif
113 #ifndef elf_backend_ecoff_debug_swap
114 #define elf_backend_ecoff_debug_swap 0
115 #endif
116
117 static CONST struct elf_backend_data elf32_bed =
118 {
119 #ifdef USE_REL
120 0, /* use_rela_p */
121 #else
122 1, /* use_rela_p */
123 #endif
124 0, /* elf_64_p */
125 ELF_ARCH, /* arch */
126 ELF_MACHINE_CODE, /* elf_machine_code */
127 ELF_MAXPAGESIZE, /* maxpagesize */
128 elf_info_to_howto,
129 elf_info_to_howto_rel,
130 elf_backend_sym_is_global,
131 elf_backend_object_p,
132 elf_backend_symbol_processing,
133 elf_backend_symbol_table_processing,
134 elf_backend_section_processing,
135 elf_backend_section_from_shdr,
136 elf_backend_fake_sections,
137 elf_backend_section_from_bfd_section,
138 elf_backend_final_write_processing,
139 elf_backend_ecoff_debug_swap
140 };
141
142 #ifdef TARGET_BIG_SYM
143 bfd_target TARGET_BIG_SYM =
144 {
145 /* name: identify kind of target */
146 TARGET_BIG_NAME,
147
148 /* flavour: general indication about file */
149 bfd_target_elf_flavour,
150
151 /* byteorder_big_p: data is big endian */
152 true,
153
154 /* header_byteorder_big_p: header is also big endian */
155 true,
156
157 /* object_flags: mask of all file flags */
158 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
159 DYNAMIC | WP_TEXT),
160
161 /* section_flags: mask of all section flags */
162 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
163 SEC_CODE | SEC_DATA | SEC_DEBUGGING),
164
165 /* leading_symbol_char: is the first char of a user symbol
166 predictable, and if so what is it */
167 0,
168
169 /* ar_pad_char: pad character for filenames within an archive header
170 FIXME: this really has nothing to do with ELF, this is a characteristic
171 of the archiver and/or os and should be independently tunable */
172 '/',
173
174 /* ar_max_namelen: maximum number of characters in an archive header
175 FIXME: this really has nothing to do with ELF, this is a characteristic
176 of the archiver and should be independently tunable. This value is
177 a WAG (wild a** guess) */
178 15,
179
180 /* align_power_min: minimum alignment restriction for any section
181 FIXME: this value may be target machine dependent */
182 3,
183
184 /* Routines to byte-swap various sized integers from the data sections */
185 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
186 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
187 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
188
189 /* Routines to byte-swap various sized integers from the file headers */
190 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
191 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
192 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
193
194 /* bfd_check_format: check the format of a file being read */
195 { _bfd_dummy_target, /* unknown format */
196 bfd_elf32_object_p, /* assembler/linker output (object file) */
197 bfd_generic_archive_p, /* an archive */
198 bfd_elf32_core_file_p /* a core file */
199 },
200
201 /* bfd_set_format: set the format of a file being written */
202 { bfd_false,
203 bfd_elf_mkobject,
204 _bfd_generic_mkarchive,
205 bfd_false
206 },
207
208 /* bfd_write_contents: write cached information into a file being written */
209 { bfd_false,
210 bfd_elf32_write_object_contents,
211 _bfd_write_archive_contents,
212 bfd_false
213 },
214
215 /* Initialize a jump table with the standard macro. All names start with
216 "elf" */
217 JUMP_TABLE(bfd_elf32),
218
219 /* backend_data: */
220 (PTR) &elf32_bed,
221 };
222 #endif
223
224 #ifdef TARGET_LITTLE_SYM
225 bfd_target TARGET_LITTLE_SYM =
226 {
227 /* name: identify kind of target */
228 TARGET_LITTLE_NAME,
229
230 /* flavour: general indication about file */
231 bfd_target_elf_flavour,
232
233 /* byteorder_big_p: data is big endian */
234 false, /* Nope -- this one's little endian */
235
236 /* header_byteorder_big_p: header is also big endian */
237 false, /* Nope -- this one's little endian */
238
239 /* object_flags: mask of all file flags */
240 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
241 DYNAMIC | WP_TEXT),
242
243 /* section_flags: mask of all section flags */
244 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
245 SEC_CODE | SEC_DATA | SEC_DEBUGGING),
246
247 /* leading_symbol_char: is the first char of a user symbol
248 predictable, and if so what is it */
249 0,
250
251 /* ar_pad_char: pad character for filenames within an archive header
252 FIXME: this really has nothing to do with ELF, this is a characteristic
253 of the archiver and/or os and should be independently tunable */
254 '/',
255
256 /* ar_max_namelen: maximum number of characters in an archive header
257 FIXME: this really has nothing to do with ELF, this is a characteristic
258 of the archiver and should be independently tunable. This value is
259 a WAG (wild a** guess) */
260 15,
261
262 /* align_power_min: minimum alignment restriction for any section
263 FIXME: this value may be target machine dependent */
264 3,
265
266 /* Routines to byte-swap various sized integers from the data sections */
267 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
268 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
269 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
270
271 /* Routines to byte-swap various sized integers from the file headers */
272 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
273 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
274 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
275
276 /* bfd_check_format: check the format of a file being read */
277 { _bfd_dummy_target, /* unknown format */
278 bfd_elf32_object_p, /* assembler/linker output (object file) */
279 bfd_generic_archive_p, /* an archive */
280 bfd_elf32_core_file_p /* a core file */
281 },
282
283 /* bfd_set_format: set the format of a file being written */
284 { bfd_false,
285 bfd_elf_mkobject,
286 _bfd_generic_mkarchive,
287 bfd_false
288 },
289
290 /* bfd_write_contents: write cached information into a file being written */
291 { bfd_false,
292 bfd_elf32_write_object_contents,
293 _bfd_write_archive_contents,
294 bfd_false
295 },
296
297 /* Initialize a jump table with the standard macro. All names start with
298 "elf" */
299 JUMP_TABLE(bfd_elf32),
300
301 /* backend_data: */
302 (PTR) &elf32_bed,
303 };
304 #endif
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