aboutsummaryrefslogtreecommitdiff
path: root/bfd/elf64-target.h
blob: e7177f2a62b99aa3a611f415e2d48e4de618fa20 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
/* Target definitions for 64-bit ELF
   Copyright 1993, 1994 Free Software Foundation, Inc.

This file is part of BFD, the Binary File Descriptor library.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

/* This structure contains everything that BFD knows about a target.
   It includes things like its byte order, name, what routines to call
   to do various operations, etc.  Every BFD points to a target structure
   with its "xvec" member.

   There are two such structures here:  one for big-endian machines and
   one for little-endian machines.   */

#define	bfd_elf64_close_and_cleanup _bfd_generic_close_and_cleanup
#define bfd_elf64_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
#ifndef bfd_elf64_get_section_contents
#define bfd_elf64_get_section_contents _bfd_generic_get_section_contents
#endif

#define bfd_elf64_bfd_debug_info_start	bfd_void
#define bfd_elf64_bfd_debug_info_end	bfd_void
#define bfd_elf64_bfd_debug_info_accumulate	(PROTO(void,(*),(bfd*, struct sec *))) bfd_void
#define bfd_elf64_bfd_get_relocated_section_contents \
 bfd_generic_get_relocated_section_contents
#define bfd_elf64_bfd_relax_section bfd_generic_relax_section
#define bfd_elf64_bfd_make_debug_symbol \
  ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)

#ifndef bfd_elf64_bfd_copy_private_symbol_data
#define bfd_elf64_bfd_copy_private_symbol_data \
  ((boolean (*) PARAMS ((bfd *, asymbol *, bfd *, asymbol *))) bfd_true)
#endif
#ifndef bfd_elf64_bfd_copy_private_section_data
#define bfd_elf64_bfd_copy_private_section_data \
  ((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_true)
#endif
#ifndef bfd_elf64_bfd_copy_private_bfd_data
#define bfd_elf64_bfd_copy_private_bfd_data \
  ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
#endif
#ifndef bfd_elf64_bfd_merge_private_bfd_data
#define bfd_elf64_bfd_merge_private_bfd_data \
  ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
#endif
#ifndef bfd_elf64_bfd_set_private_flags
#define bfd_elf64_bfd_set_private_flags \
  ((boolean (*) PARAMS ((bfd *, flagword))) bfd_true)
#endif
#ifndef bfd_elf64_bfd_is_local_label
#define bfd_elf64_bfd_is_local_label bfd_generic_is_local_label
#endif

#ifndef bfd_elf64_get_dynamic_reloc_upper_bound
#define bfd_elf64_get_dynamic_reloc_upper_bound \
  _bfd_nodynamic_get_dynamic_reloc_upper_bound
#endif
#ifndef bfd_elf64_canonicalize_dynamic_reloc
#define bfd_elf64_canonicalize_dynamic_reloc \
  _bfd_nodynamic_canonicalize_dynamic_reloc
#endif

#ifdef elf_backend_relocate_section
#ifndef bfd_elf64_bfd_link_hash_table_create
#define bfd_elf64_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
#endif
#else /* ! defined (elf_backend_relocate_section) */
/* If no backend relocate_section routine, use the generic linker.  */
#ifndef bfd_elf64_bfd_link_hash_table_create
#define bfd_elf64_bfd_link_hash_table_create \
  _bfd_generic_link_hash_table_create
#endif
#ifndef bfd_elf64_bfd_link_add_symbols
#define bfd_elf64_bfd_link_add_symbols	_bfd_generic_link_add_symbols
#endif
#ifndef bfd_elf64_bfd_final_link
#define bfd_elf64_bfd_final_link	_bfd_generic_final_link
#endif
#endif /* ! defined (elf_backend_relocate_section) */
#ifndef bfd_elf64_bfd_link_split_section
#define bfd_elf64_bfd_link_split_section _bfd_generic_link_split_section
#endif

#ifndef elf_info_to_howto_rel
#define elf_info_to_howto_rel 0
#endif

#ifndef ELF_MAXPAGESIZE
#define ELF_MAXPAGESIZE 1
#endif

#ifndef elf_backend_collect
#define elf_backend_collect false
#endif

#ifndef elf_backend_sym_is_global
#define elf_backend_sym_is_global	0
#endif
#ifndef elf_backend_object_p
#define elf_backend_object_p		0
#endif
#ifndef elf_backend_symbol_processing
#define elf_backend_symbol_processing	0
#endif
#ifndef elf_backend_symbol_table_processing
#define elf_backend_symbol_table_processing	0
#endif
#ifndef elf_backend_section_processing
#define elf_backend_section_processing	0
#endif
#ifndef elf_backend_section_from_shdr
#define elf_backend_section_from_shdr	0
#endif
#ifndef elf_backend_fake_sections
#define elf_backend_fake_sections	0
#endif
#ifndef elf_backend_section_from_bfd_section
#define elf_backend_section_from_bfd_section	0
#endif
#ifndef elf_backend_add_symbol_hook
#define elf_backend_add_symbol_hook	0
#endif
#ifndef elf_backend_link_output_symbol_hook
#define elf_backend_link_output_symbol_hook 0
#endif
#ifndef elf_backend_create_dynamic_sections
#define elf_backend_create_dynamic_sections 0
#endif
#ifndef elf_backend_check_relocs
#define elf_backend_check_relocs	0
#endif
#ifndef elf_backend_adjust_dynamic_symbol
#define elf_backend_adjust_dynamic_symbol 0
#endif
#ifndef elf_backend_size_dynamic_sections
#define elf_backend_size_dynamic_sections 0
#endif
#ifndef elf_backend_relocate_section
#define elf_backend_relocate_section	0
#endif
#ifndef elf_backend_finish_dynamic_symbol
#define elf_backend_finish_dynamic_symbol	0
#endif
#ifndef elf_backend_finish_dynamic_sections
#define elf_backend_finish_dynamic_sections	0
#endif
#ifndef elf_backend_begin_write_processing
#define elf_backend_begin_write_processing	0
#endif
#ifndef elf_backend_final_write_processing
#define elf_backend_final_write_processing	0
#endif
#ifndef elf_backend_ecoff_debug_swap
#define elf_backend_ecoff_debug_swap	0
#endif

#ifndef ELF_MACHINE_ALT1
#define ELF_MACHINE_ALT1 0
#endif

#ifndef ELF_MACHINE_ALT2
#define ELF_MACHINE_ALT2 0
#endif

static CONST struct elf_backend_data elf64_bed =
{
#ifdef USE_REL
  0,				/* use_rela_p */
#else
  1,				/* use_rela_p */
#endif
  1,				/* elf_64_p */
  ELF_ARCH,			/* arch */
  ELF_MACHINE_CODE,		/* elf_machine_code */
  ELF_MAXPAGESIZE,		/* maxpagesize */
  elf_backend_collect,
  elf_info_to_howto,
  elf_info_to_howto_rel,
  elf_backend_sym_is_global,
  elf_backend_object_p,
  elf_backend_symbol_processing,
  elf_backend_symbol_table_processing,
  elf_backend_section_processing,
  elf_backend_section_from_shdr,
  elf_backend_fake_sections,
  elf_backend_section_from_bfd_section,
  elf_backend_add_symbol_hook,
  elf_backend_link_output_symbol_hook,
  elf_backend_create_dynamic_sections,
  elf_backend_check_relocs,
  elf_backend_adjust_dynamic_symbol,
  elf_backend_size_dynamic_sections,
  elf_backend_relocate_section,
  elf_backend_finish_dynamic_symbol,
  elf_backend_finish_dynamic_sections,
  elf_backend_begin_write_processing,
  elf_backend_final_write_processing,
  elf_backend_ecoff_debug_swap,
  ELF_MACHINE_ALT1,
  ELF_MACHINE_ALT2
};

#ifdef TARGET_BIG_SYM
const bfd_target TARGET_BIG_SYM =
{
  /* name: identify kind of target */
  TARGET_BIG_NAME,

  /* flavour: general indication about file */
  bfd_target_elf_flavour,

  /* byteorder_big_p: data is big endian */
  true,

  /* header_byteorder_big_p: header is also big endian */
  true,

  /* object_flags: mask of all file flags */
  (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
   DYNAMIC | WP_TEXT | D_PAGED),
  
  /* section_flags: mask of all section flags */
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
   SEC_CODE | SEC_DATA | SEC_DEBUGGING),

   /* leading_symbol_char: is the first char of a user symbol
      predictable, and if so what is it */
   0,

  /* ar_pad_char: pad character for filenames within an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and/or os and should be independently tunable */
  '/',

  /* ar_max_namelen: maximum number of characters in an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and should be independently tunable.  This value is
     a WAG (wild a** guess) */
  14,

  /* align_power_min: minimum alignment restriction for any section
     FIXME:  this value may be target machine dependent */
  3,

  /* Routines to byte-swap various sized integers from the data sections */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
    bfd_getb32, bfd_getb_signed_32, bfd_putb32,
    bfd_getb16, bfd_getb_signed_16, bfd_putb16,

  /* Routines to byte-swap various sized integers from the file headers */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
    bfd_getb32, bfd_getb_signed_32, bfd_putb32,
    bfd_getb16, bfd_getb_signed_16, bfd_putb16,

  /* bfd_check_format: check the format of a file being read */
  { _bfd_dummy_target,		/* unknown format */
    bfd_elf64_object_p,		/* assembler/linker output (object file) */
    bfd_generic_archive_p,	/* an archive */
    bfd_elf64_core_file_p	/* a core file */
  },

  /* bfd_set_format: set the format of a file being written */
  { bfd_false,
    bfd_elf_mkobject,
    _bfd_generic_mkarchive,
    bfd_false
  },

  /* bfd_write_contents: write cached information into a file being written */
  { bfd_false,
    bfd_elf64_write_object_contents,
    _bfd_write_archive_contents,
    bfd_false
  },

      BFD_JUMP_TABLE_GENERIC (bfd_elf64),
      BFD_JUMP_TABLE_COPY (bfd_elf64),
      BFD_JUMP_TABLE_CORE (bfd_elf64),
      BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
      BFD_JUMP_TABLE_SYMBOLS (bfd_elf64),
      BFD_JUMP_TABLE_RELOCS (bfd_elf64),
      BFD_JUMP_TABLE_WRITE (bfd_elf64),
      BFD_JUMP_TABLE_LINK (bfd_elf64),
      BFD_JUMP_TABLE_DYNAMIC (bfd_elf64),

  /* backend_data: */
  (PTR) &elf64_bed,
};
#endif

#ifdef TARGET_LITTLE_SYM
const bfd_target TARGET_LITTLE_SYM =
{
  /* name: identify kind of target */
  TARGET_LITTLE_NAME,

  /* flavour: general indication about file */
  bfd_target_elf_flavour,

  /* byteorder_big_p: data is big endian */
  false,		/* Nope -- this one's little endian */

  /* header_byteorder_big_p: header is also big endian */
  false,		/* Nope -- this one's little endian */

  /* object_flags: mask of all file flags */
  (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
   DYNAMIC | WP_TEXT | D_PAGED),
  
  /* section_flags: mask of all section flags */
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
   SEC_CODE | SEC_DATA | SEC_DEBUGGING),

   /* leading_symbol_char: is the first char of a user symbol
      predictable, and if so what is it */
   0,

  /* ar_pad_char: pad character for filenames within an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and/or os and should be independently tunable */
  '/',

  /* ar_max_namelen: maximum number of characters in an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and should be independently tunable.  This value is
     a WAG (wild a** guess) */
  14,

  /* align_power_min: minimum alignment restriction for any section
     FIXME:  this value may be target machine dependent */
  3,

  /* Routines to byte-swap various sized integers from the data sections */
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
    bfd_getl16, bfd_getl_signed_16, bfd_putl16,

  /* Routines to byte-swap various sized integers from the file headers */
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
    bfd_getl16, bfd_getl_signed_16, bfd_putl16,

  /* bfd_check_format: check the format of a file being read */
  { _bfd_dummy_target,		/* unknown format */
    bfd_elf64_object_p,		/* assembler/linker output (object file) */
    bfd_generic_archive_p,	/* an archive */
    bfd_elf64_core_file_p	/* a core file */
  },

  /* bfd_set_format: set the format of a file being written */
  { bfd_false,
    bfd_elf_mkobject,
    _bfd_generic_mkarchive,
    bfd_false
  },

  /* bfd_write_contents: write cached information into a file being written */
  { bfd_false,
    bfd_elf64_write_object_contents,
    _bfd_write_archive_contents,
    bfd_false
  },

      BFD_JUMP_TABLE_GENERIC (bfd_elf64),
      BFD_JUMP_TABLE_COPY (bfd_elf64),
      BFD_JUMP_TABLE_CORE (bfd_elf64),
      BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
      BFD_JUMP_TABLE_SYMBOLS (bfd_elf64),
      BFD_JUMP_TABLE_RELOCS (bfd_elf64),
      BFD_JUMP_TABLE_WRITE (bfd_elf64),
      BFD_JUMP_TABLE_LINK (bfd_elf64),
      BFD_JUMP_TABLE_DYNAMIC (bfd_elf64),

  /* backend_data: */
  (PTR) &elf64_bed,
};
#endif