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[deliverable/binutils-gdb.git] / bfd / elf32-target.h
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81187b54 1/* Target definitions for 32-bit ELF
dfc1c006 2 Copyright 1993, 1994 Free Software Foundation, Inc.
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3
4This file is part of BFD, the Binary File Descriptor library.
5
6This program is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2 of the License, or
9(at your option) any later version.
10
11This program is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with this program; if not, write to the Free Software
18Foundation, 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
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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 \
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38 ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
39
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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
48#ifndef bfd_elf32_bfd_is_local_label
49#define bfd_elf32_bfd_is_local_label bfd_generic_is_local_label
50#endif
51
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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
55#endif
56#ifndef bfd_elf32_canonicalize_dynamic_reloc
57#define bfd_elf32_canonicalize_dynamic_reloc \
58 _bfd_nodynamic_canonicalize_dynamic_reloc
59#endif
60
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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
64#endif
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
70#endif
71#ifndef bfd_elf32_bfd_link_add_symbols
72#define bfd_elf32_bfd_link_add_symbols _bfd_generic_link_add_symbols
73#endif
74#ifndef bfd_elf32_bfd_final_link
75#define bfd_elf32_bfd_final_link _bfd_generic_final_link
76#endif
77#endif /* ! defined (elf_backend_relocate_section) */
78
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79#ifndef elf_info_to_howto_rel
80#define elf_info_to_howto_rel 0
81#endif
82
83#ifndef ELF_MAXPAGESIZE
84#define ELF_MAXPAGESIZE 1
85#endif
86
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87#ifndef elf_backend_collect
88#define elf_backend_collect false
89#endif
90
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91#ifndef elf_backend_sym_is_global
92#define elf_backend_sym_is_global 0
93#endif
a5ccdad1 94#ifndef elf_backend_object_p
643e9fc7 95#define elf_backend_object_p 0
a5ccdad1 96#endif
e2a422b8 97#ifndef elf_backend_symbol_processing
643e9fc7 98#define elf_backend_symbol_processing 0
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99#endif
100#ifndef elf_backend_symbol_table_processing
643e9fc7 101#define elf_backend_symbol_table_processing 0
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102#endif
103#ifndef elf_backend_section_processing
643e9fc7 104#define elf_backend_section_processing 0
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105#endif
106#ifndef elf_backend_section_from_shdr
643e9fc7 107#define elf_backend_section_from_shdr 0
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108#endif
109#ifndef elf_backend_fake_sections
643e9fc7 110#define elf_backend_fake_sections 0
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111#endif
112#ifndef elf_backend_section_from_bfd_section
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113#define elf_backend_section_from_bfd_section 0
114#endif
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115#ifndef elf_backend_add_symbol_hook
116#define elf_backend_add_symbol_hook 0
117#endif
118#ifndef elf_backend_relocate_section
119#define elf_backend_relocate_section 0
120#endif
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121#ifndef elf_backend_begin_write_processing
122#define elf_backend_begin_write_processing 0
123#endif
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124#ifndef elf_backend_final_write_processing
125#define elf_backend_final_write_processing 0
e2a422b8 126#endif
95469b02 127#ifndef elf_backend_ecoff_debug_swap
643e9fc7 128#define elf_backend_ecoff_debug_swap 0
95469b02 129#endif
e2a422b8 130
268f94ac 131static CONST struct elf_backend_data elf32_bed =
81187b54 132{
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133#ifdef USE_REL
134 0, /* use_rela_p */
135#else
136 1, /* use_rela_p */
137#endif
138 0, /* elf_64_p */
139 ELF_ARCH, /* arch */
a5ccdad1 140 ELF_MACHINE_CODE, /* elf_machine_code */
95469b02 141 ELF_MAXPAGESIZE, /* maxpagesize */
6ec3bb6a 142 elf_backend_collect,
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143 elf_info_to_howto,
144 elf_info_to_howto_rel,
145 elf_backend_sym_is_global,
146 elf_backend_object_p,
147 elf_backend_symbol_processing,
148 elf_backend_symbol_table_processing,
149 elf_backend_section_processing,
150 elf_backend_section_from_shdr,
151 elf_backend_fake_sections,
152 elf_backend_section_from_bfd_section,
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153 elf_backend_add_symbol_hook,
154 elf_backend_relocate_section,
99a6c761 155 elf_backend_begin_write_processing,
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156 elf_backend_final_write_processing,
157 elf_backend_ecoff_debug_swap
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158};
159
160#ifdef TARGET_BIG_SYM
161bfd_target TARGET_BIG_SYM =
162{
163 /* name: identify kind of target */
164 TARGET_BIG_NAME,
165
166 /* flavour: general indication about file */
167 bfd_target_elf_flavour,
168
169 /* byteorder_big_p: data is big endian */
170 true,
171
172 /* header_byteorder_big_p: header is also big endian */
173 true,
174
175 /* object_flags: mask of all file flags */
176 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
177 DYNAMIC | WP_TEXT),
178
179 /* section_flags: mask of all section flags */
180 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
d6e5f950 181 SEC_CODE | SEC_DATA | SEC_DEBUGGING),
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182
183 /* leading_symbol_char: is the first char of a user symbol
184 predictable, and if so what is it */
185 0,
186
187 /* ar_pad_char: pad character for filenames within an archive header
188 FIXME: this really has nothing to do with ELF, this is a characteristic
189 of the archiver and/or os and should be independently tunable */
190 '/',
191
192 /* ar_max_namelen: maximum number of characters in an archive header
193 FIXME: this really has nothing to do with ELF, this is a characteristic
194 of the archiver and should be independently tunable. This value is
195 a WAG (wild a** guess) */
196 15,
197
198 /* align_power_min: minimum alignment restriction for any section
199 FIXME: this value may be target machine dependent */
200 3,
201
202 /* Routines to byte-swap various sized integers from the data sections */
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203 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
204 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
205 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
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206
207 /* Routines to byte-swap various sized integers from the file headers */
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208 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
209 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
210 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
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211
212 /* bfd_check_format: check the format of a file being read */
213 { _bfd_dummy_target, /* unknown format */
9942e684 214 bfd_elf32_object_p, /* assembler/linker output (object file) */
81187b54 215 bfd_generic_archive_p, /* an archive */
9942e684 216 bfd_elf32_core_file_p /* a core file */
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217 },
218
219 /* bfd_set_format: set the format of a file being written */
220 { bfd_false,
998ce1e0 221 bfd_elf_mkobject,
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222 _bfd_generic_mkarchive,
223 bfd_false
224 },
225
226 /* bfd_write_contents: write cached information into a file being written */
227 { bfd_false,
9942e684 228 bfd_elf32_write_object_contents,
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229 _bfd_write_archive_contents,
230 bfd_false
231 },
232
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233 BFD_JUMP_TABLE_GENERIC (bfd_elf32),
234 BFD_JUMP_TABLE_COPY (bfd_elf32),
235 BFD_JUMP_TABLE_CORE (bfd_elf32),
236 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
237 BFD_JUMP_TABLE_SYMBOLS (bfd_elf32),
238 BFD_JUMP_TABLE_RELOCS (bfd_elf32),
239 BFD_JUMP_TABLE_WRITE (bfd_elf32),
240 BFD_JUMP_TABLE_LINK (bfd_elf32),
cb71adf1 241 BFD_JUMP_TABLE_DYNAMIC (bfd_elf32),
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242
243 /* backend_data: */
9942e684 244 (PTR) &elf32_bed,
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245};
246#endif
247
248#ifdef TARGET_LITTLE_SYM
249bfd_target TARGET_LITTLE_SYM =
250{
251 /* name: identify kind of target */
252 TARGET_LITTLE_NAME,
253
254 /* flavour: general indication about file */
255 bfd_target_elf_flavour,
256
257 /* byteorder_big_p: data is big endian */
258 false, /* Nope -- this one's little endian */
259
260 /* header_byteorder_big_p: header is also big endian */
261 false, /* Nope -- this one's little endian */
262
263 /* object_flags: mask of all file flags */
264 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
265 DYNAMIC | WP_TEXT),
266
267 /* section_flags: mask of all section flags */
268 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
d6e5f950 269 SEC_CODE | SEC_DATA | SEC_DEBUGGING),
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270
271 /* leading_symbol_char: is the first char of a user symbol
272 predictable, and if so what is it */
273 0,
274
275 /* ar_pad_char: pad character for filenames within an archive header
276 FIXME: this really has nothing to do with ELF, this is a characteristic
277 of the archiver and/or os and should be independently tunable */
278 '/',
279
280 /* ar_max_namelen: maximum number of characters in an archive header
281 FIXME: this really has nothing to do with ELF, this is a characteristic
282 of the archiver and should be independently tunable. This value is
283 a WAG (wild a** guess) */
284 15,
285
286 /* align_power_min: minimum alignment restriction for any section
287 FIXME: this value may be target machine dependent */
288 3,
289
290 /* Routines to byte-swap various sized integers from the data sections */
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291 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
292 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
293 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
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294
295 /* Routines to byte-swap various sized integers from the file headers */
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296 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
297 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
298 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
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299
300 /* bfd_check_format: check the format of a file being read */
301 { _bfd_dummy_target, /* unknown format */
9942e684 302 bfd_elf32_object_p, /* assembler/linker output (object file) */
81187b54 303 bfd_generic_archive_p, /* an archive */
9942e684 304 bfd_elf32_core_file_p /* a core file */
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305 },
306
307 /* bfd_set_format: set the format of a file being written */
308 { bfd_false,
998ce1e0 309 bfd_elf_mkobject,
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310 _bfd_generic_mkarchive,
311 bfd_false
312 },
313
314 /* bfd_write_contents: write cached information into a file being written */
315 { bfd_false,
9942e684 316 bfd_elf32_write_object_contents,
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317 _bfd_write_archive_contents,
318 bfd_false
319 },
320
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321 BFD_JUMP_TABLE_GENERIC (bfd_elf32),
322 BFD_JUMP_TABLE_COPY (bfd_elf32),
323 BFD_JUMP_TABLE_CORE (bfd_elf32),
324 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
325 BFD_JUMP_TABLE_SYMBOLS (bfd_elf32),
326 BFD_JUMP_TABLE_RELOCS (bfd_elf32),
327 BFD_JUMP_TABLE_WRITE (bfd_elf32),
328 BFD_JUMP_TABLE_LINK (bfd_elf32),
cb71adf1 329 BFD_JUMP_TABLE_DYNAMIC (bfd_elf32),
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330
331 /* backend_data: */
9942e684 332 (PTR) &elf32_bed,
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333};
334#endif
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