1 /* Target definitions for NN-bit ELF
2 Copyright 1993, 1994, 1995 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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_elfNN_close_and_cleanup _bfd_generic_close_and_cleanup
29 #define bfd_elfNN_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
30 #ifndef bfd_elfNN_get_section_contents
31 #define bfd_elfNN_get_section_contents _bfd_generic_get_section_contents
34 #define bfd_elfNN_canonicalize_dynamic_symtab _bfd_elf_canonicalize_dynamic_symtab
35 #define bfd_elfNN_canonicalize_reloc _bfd_elf_canonicalize_reloc
36 #ifndef bfd_elfNN_find_nearest_line
37 #define bfd_elfNN_find_nearest_line _bfd_elf_find_nearest_line
39 #define bfd_elfNN_read_minisymbols _bfd_elf_read_minisymbols
40 #define bfd_elfNN_minisymbol_to_symbol _bfd_elf_minisymbol_to_symbol
41 #define bfd_elfNN_get_dynamic_symtab_upper_bound _bfd_elf_get_dynamic_symtab_upper_bound
42 #define bfd_elfNN_get_lineno _bfd_elf_get_lineno
43 #define bfd_elfNN_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound
44 #define bfd_elfNN_get_symbol_info _bfd_elf_get_symbol_info
45 #define bfd_elfNN_get_symtab _bfd_elf_get_symtab
46 #define bfd_elfNN_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound
47 #if 0 /* done in libelf.h */
48 #define bfd_elfNN_link_record_dynamic_symbol _bfd_elf_link_record_dynamic_symbol
50 #define bfd_elfNN_make_empty_symbol _bfd_elf_make_empty_symbol
51 #define bfd_elfNN_new_section_hook _bfd_elf_new_section_hook
52 #define bfd_elfNN_set_arch_mach _bfd_elf_set_arch_mach
53 #ifndef bfd_elfNN_set_section_contents
54 #define bfd_elfNN_set_section_contents _bfd_elf_set_section_contents
56 #define bfd_elfNN_sizeof_headers _bfd_elf_sizeof_headers
57 #define bfd_elfNN_write_object_contents _bfd_elf_write_object_contents
59 #ifndef elf_backend_want_got_plt
60 #define elf_backend_want_got_plt 0
62 #ifndef elf_backend_plt_readonly
63 #define elf_backend_plt_readonly 0
65 #ifndef elf_backend_want_plt_sym
66 #define elf_backend_want_plt_sym 0
69 #define bfd_elfNN_bfd_debug_info_start bfd_void
70 #define bfd_elfNN_bfd_debug_info_end bfd_void
71 #define bfd_elfNN_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
73 #ifndef bfd_elfNN_bfd_get_relocated_section_contents
74 #define bfd_elfNN_bfd_get_relocated_section_contents \
75 bfd_generic_get_relocated_section_contents
78 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
79 #define bfd_elfNN_bfd_make_debug_symbol \
80 ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
82 #ifndef bfd_elfNN_bfd_copy_private_symbol_data
83 #define bfd_elfNN_bfd_copy_private_symbol_data \
84 ((boolean (*) PARAMS ((bfd *, asymbol *, bfd *, asymbol *))) bfd_true)
86 #ifndef bfd_elfNN_bfd_copy_private_section_data
87 #define bfd_elfNN_bfd_copy_private_section_data \
88 ((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_true)
90 #ifndef bfd_elfNN_bfd_copy_private_bfd_data
91 #define bfd_elfNN_bfd_copy_private_bfd_data \
92 ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
94 #ifndef bfd_elfNN_bfd_print_private_bfd_data
95 #define bfd_elfNN_bfd_print_private_bfd_data \
96 ((boolean (*) PARAMS ((bfd *, void *))) bfd_true)
98 #ifndef bfd_elfNN_bfd_merge_private_bfd_data
99 #define bfd_elfNN_bfd_merge_private_bfd_data \
100 ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
102 #ifndef bfd_elfNN_bfd_set_private_flags
103 #define bfd_elfNN_bfd_set_private_flags \
104 ((boolean (*) PARAMS ((bfd *, flagword))) bfd_true)
106 #ifndef bfd_elfNN_bfd_is_local_label
107 #define bfd_elfNN_bfd_is_local_label bfd_generic_is_local_label
110 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
111 #define bfd_elfNN_get_dynamic_reloc_upper_bound \
112 _bfd_nodynamic_get_dynamic_reloc_upper_bound
114 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
115 #define bfd_elfNN_canonicalize_dynamic_reloc \
116 _bfd_nodynamic_canonicalize_dynamic_reloc
119 #ifdef elf_backend_relocate_section
120 #ifndef bfd_elfNN_bfd_link_hash_table_create
121 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
123 #else /* ! defined (elf_backend_relocate_section) */
124 /* If no backend relocate_section routine, use the generic linker. */
125 #ifndef bfd_elfNN_bfd_link_hash_table_create
126 #define bfd_elfNN_bfd_link_hash_table_create \
127 _bfd_generic_link_hash_table_create
129 #ifndef bfd_elfNN_bfd_link_add_symbols
130 #define bfd_elfNN_bfd_link_add_symbols _bfd_generic_link_add_symbols
132 #ifndef bfd_elfNN_bfd_final_link
133 #define bfd_elfNN_bfd_final_link _bfd_generic_final_link
135 #endif /* ! defined (elf_backend_relocate_section) */
136 #ifndef bfd_elfNN_bfd_link_split_section
137 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
140 #ifndef elf_info_to_howto_rel
141 #define elf_info_to_howto_rel 0
144 #ifndef ELF_MAXPAGESIZE
145 #define ELF_MAXPAGESIZE 1
148 #ifndef elf_backend_collect
149 #define elf_backend_collect false
152 #ifndef elf_backend_sym_is_global
153 #define elf_backend_sym_is_global 0
155 #ifndef elf_backend_object_p
156 #define elf_backend_object_p 0
158 #ifndef elf_backend_symbol_processing
159 #define elf_backend_symbol_processing 0
161 #ifndef elf_backend_symbol_table_processing
162 #define elf_backend_symbol_table_processing 0
164 #ifndef elf_backend_section_processing
165 #define elf_backend_section_processing 0
167 #ifndef elf_backend_section_from_shdr
168 #define elf_backend_section_from_shdr 0
170 #ifndef elf_backend_fake_sections
171 #define elf_backend_fake_sections 0
173 #ifndef elf_backend_section_from_bfd_section
174 #define elf_backend_section_from_bfd_section 0
176 #ifndef elf_backend_add_symbol_hook
177 #define elf_backend_add_symbol_hook 0
179 #ifndef elf_backend_link_output_symbol_hook
180 #define elf_backend_link_output_symbol_hook 0
182 #ifndef elf_backend_create_dynamic_sections
183 #define elf_backend_create_dynamic_sections 0
185 #ifndef elf_backend_check_relocs
186 #define elf_backend_check_relocs 0
188 #ifndef elf_backend_adjust_dynamic_symbol
189 #define elf_backend_adjust_dynamic_symbol 0
191 #ifndef elf_backend_size_dynamic_sections
192 #define elf_backend_size_dynamic_sections 0
194 #ifndef elf_backend_relocate_section
195 #define elf_backend_relocate_section 0
197 #ifndef elf_backend_finish_dynamic_symbol
198 #define elf_backend_finish_dynamic_symbol 0
200 #ifndef elf_backend_finish_dynamic_sections
201 #define elf_backend_finish_dynamic_sections 0
203 #ifndef elf_backend_begin_write_processing
204 #define elf_backend_begin_write_processing 0
206 #ifndef elf_backend_final_write_processing
207 #define elf_backend_final_write_processing 0
209 #ifndef elf_backend_ecoff_debug_swap
210 #define elf_backend_ecoff_debug_swap 0
213 #ifndef ELF_MACHINE_ALT1
214 #define ELF_MACHINE_ALT1 0
217 #ifndef ELF_MACHINE_ALT2
218 #define ELF_MACHINE_ALT2 0
221 extern const struct elf_size_info _bfd_elfNN_size_info
;
223 static CONST
struct elf_backend_data elfNN_bed
=
231 ELF_MACHINE_CODE
, /* elf_machine_code */
232 ELF_MAXPAGESIZE
, /* maxpagesize */
235 elf_info_to_howto_rel
,
236 elf_backend_sym_is_global
,
237 elf_backend_object_p
,
238 elf_backend_symbol_processing
,
239 elf_backend_symbol_table_processing
,
240 elf_backend_section_processing
,
241 elf_backend_section_from_shdr
,
242 elf_backend_fake_sections
,
243 elf_backend_section_from_bfd_section
,
244 elf_backend_add_symbol_hook
,
245 elf_backend_link_output_symbol_hook
,
246 elf_backend_create_dynamic_sections
,
247 elf_backend_check_relocs
,
248 elf_backend_adjust_dynamic_symbol
,
249 elf_backend_size_dynamic_sections
,
250 elf_backend_relocate_section
,
251 elf_backend_finish_dynamic_symbol
,
252 elf_backend_finish_dynamic_sections
,
253 elf_backend_begin_write_processing
,
254 elf_backend_final_write_processing
,
255 elf_backend_ecoff_debug_swap
,
258 &_bfd_elfNN_size_info
,
259 elf_backend_want_got_plt
,
260 elf_backend_plt_readonly
,
261 elf_backend_want_plt_sym
,
264 #ifdef TARGET_BIG_SYM
265 const bfd_target TARGET_BIG_SYM
=
267 /* name: identify kind of target */
270 /* flavour: general indication about file */
271 bfd_target_elf_flavour
,
273 /* byteorder_big_p: data is big endian */
276 /* header_byteorder_big_p: header is also big endian */
279 /* object_flags: mask of all file flags */
280 (HAS_RELOC
| EXEC_P
| HAS_LINENO
| HAS_DEBUG
| HAS_SYMS
| HAS_LOCALS
|
281 DYNAMIC
| WP_TEXT
| D_PAGED
),
283 /* section_flags: mask of all section flags */
284 (SEC_HAS_CONTENTS
| SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_READONLY
|
285 SEC_CODE
| SEC_DATA
| SEC_DEBUGGING
),
287 /* leading_symbol_char: is the first char of a user symbol
288 predictable, and if so what is it */
291 /* ar_pad_char: pad character for filenames within an archive header
292 FIXME: this really has nothing to do with ELF, this is a characteristic
293 of the archiver and/or os and should be independently tunable */
296 /* ar_max_namelen: maximum number of characters in an archive header
297 FIXME: this really has nothing to do with ELF, this is a characteristic
298 of the archiver and should be independently tunable. This value is
299 a WAG (wild a** guess) */
302 /* align_power_min: minimum alignment restriction for any section
303 FIXME: this value may be target machine dependent */
306 /* Routines to byte-swap various sized integers from the data sections */
307 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
308 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
309 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
,
311 /* Routines to byte-swap various sized integers from the file headers */
312 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
313 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
314 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
,
316 /* bfd_check_format: check the format of a file being read */
317 { _bfd_dummy_target
, /* unknown format */
318 bfd_elfNN_object_p
, /* assembler/linker output (object file) */
319 bfd_generic_archive_p
, /* an archive */
320 bfd_elfNN_core_file_p
/* a core file */
323 /* bfd_set_format: set the format of a file being written */
326 _bfd_generic_mkarchive
,
330 /* bfd_write_contents: write cached information into a file being written */
332 bfd_elfNN_write_object_contents
,
333 _bfd_write_archive_contents
,
337 BFD_JUMP_TABLE_GENERIC (bfd_elfNN
),
338 BFD_JUMP_TABLE_COPY (bfd_elfNN
),
339 BFD_JUMP_TABLE_CORE (bfd_elfNN
),
340 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff
),
341 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN
),
342 BFD_JUMP_TABLE_RELOCS (bfd_elfNN
),
343 BFD_JUMP_TABLE_WRITE (bfd_elfNN
),
344 BFD_JUMP_TABLE_LINK (bfd_elfNN
),
345 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN
),
352 #ifdef TARGET_LITTLE_SYM
353 const bfd_target TARGET_LITTLE_SYM
=
355 /* name: identify kind of target */
358 /* flavour: general indication about file */
359 bfd_target_elf_flavour
,
361 /* byteorder_big_p: data is big endian */
362 false, /* Nope -- this one's little endian */
364 /* header_byteorder_big_p: header is also big endian */
365 false, /* Nope -- this one's little endian */
367 /* object_flags: mask of all file flags */
368 (HAS_RELOC
| EXEC_P
| HAS_LINENO
| HAS_DEBUG
| HAS_SYMS
| HAS_LOCALS
|
369 DYNAMIC
| WP_TEXT
| D_PAGED
),
371 /* section_flags: mask of all section flags */
372 (SEC_HAS_CONTENTS
| SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_READONLY
|
373 SEC_CODE
| SEC_DATA
| SEC_DEBUGGING
),
375 /* leading_symbol_char: is the first char of a user symbol
376 predictable, and if so what is it */
379 /* ar_pad_char: pad character for filenames within an archive header
380 FIXME: this really has nothing to do with ELF, this is a characteristic
381 of the archiver and/or os and should be independently tunable */
384 /* ar_max_namelen: maximum number of characters in an archive header
385 FIXME: this really has nothing to do with ELF, this is a characteristic
386 of the archiver and should be independently tunable. This value is
387 a WAG (wild a** guess) */
390 /* align_power_min: minimum alignment restriction for any section
391 FIXME: this value may be target machine dependent */
394 /* Routines to byte-swap various sized integers from the data sections */
395 bfd_getl64
, bfd_getl_signed_64
, bfd_putl64
,
396 bfd_getl32
, bfd_getl_signed_32
, bfd_putl32
,
397 bfd_getl16
, bfd_getl_signed_16
, bfd_putl16
,
399 /* Routines to byte-swap various sized integers from the file headers */
400 bfd_getl64
, bfd_getl_signed_64
, bfd_putl64
,
401 bfd_getl32
, bfd_getl_signed_32
, bfd_putl32
,
402 bfd_getl16
, bfd_getl_signed_16
, bfd_putl16
,
404 /* bfd_check_format: check the format of a file being read */
405 { _bfd_dummy_target
, /* unknown format */
406 bfd_elfNN_object_p
, /* assembler/linker output (object file) */
407 bfd_generic_archive_p
, /* an archive */
408 bfd_elfNN_core_file_p
/* a core file */
411 /* bfd_set_format: set the format of a file being written */
414 _bfd_generic_mkarchive
,
418 /* bfd_write_contents: write cached information into a file being written */
420 bfd_elfNN_write_object_contents
,
421 _bfd_write_archive_contents
,
425 BFD_JUMP_TABLE_GENERIC (bfd_elfNN
),
426 BFD_JUMP_TABLE_COPY (bfd_elfNN
),
427 BFD_JUMP_TABLE_CORE (bfd_elfNN
),
428 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff
),
429 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN
),
430 BFD_JUMP_TABLE_RELOCS (bfd_elfNN
),
431 BFD_JUMP_TABLE_WRITE (bfd_elfNN
),
432 BFD_JUMP_TABLE_LINK (bfd_elfNN
),
433 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN
),