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252b5132 | 1 | /* BFD back-end data structures for ELF files. |
e5094212 | 2 | Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
f0abc2a1 | 3 | 2002, 2003 Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by Cygnus Support. |
5 | ||
5e8d7549 | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
5e8d7549 NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
252b5132 | 12 | |
5e8d7549 NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
5e8d7549 NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
252b5132 RH |
21 | |
22 | #ifndef _LIBELF_H_ | |
23 | #define _LIBELF_H_ 1 | |
24 | ||
25 | #include "elf/common.h" | |
26 | #include "elf/internal.h" | |
27 | #include "elf/external.h" | |
28 | #include "bfdlink.h" | |
29 | ||
d9bc7a44 | 30 | /* The number of entries in a section is its size divided by the size |
51b64d56 | 31 | of a single entry. This is normally only applicable to reloc and |
d9bc7a44 NC |
32 | symbol table sections. */ |
33 | #define NUM_SHDR_ENTRIES(shdr) ((shdr)->sh_size / (shdr)->sh_entsize) | |
34 | ||
252b5132 RH |
35 | /* If size isn't specified as 64 or 32, NAME macro should fail. */ |
36 | #ifndef NAME | |
c39a58e6 AM |
37 | #if ARCH_SIZE == 64 |
38 | #define NAME(x, y) x ## 64 ## _ ## y | |
252b5132 | 39 | #endif |
c39a58e6 AM |
40 | #if ARCH_SIZE == 32 |
41 | #define NAME(x, y) x ## 32 ## _ ## y | |
252b5132 RH |
42 | #endif |
43 | #endif | |
44 | ||
45 | #ifndef NAME | |
c39a58e6 | 46 | #define NAME(x, y) x ## NOSIZE ## _ ## y |
252b5132 RH |
47 | #endif |
48 | ||
49 | #define ElfNAME(X) NAME(Elf,X) | |
50 | #define elfNAME(X) NAME(elf,X) | |
51 | ||
52 | /* Information held for an ELF symbol. The first field is the | |
53 | corresponding asymbol. Every symbol is an ELF file is actually a | |
54 | pointer to this structure, although it is often handled as a | |
55 | pointer to an asymbol. */ | |
56 | ||
57 | typedef struct | |
58 | { | |
59 | /* The BFD symbol. */ | |
60 | asymbol symbol; | |
61 | /* ELF symbol information. */ | |
62 | Elf_Internal_Sym internal_elf_sym; | |
63 | /* Backend specific information. */ | |
64 | union | |
65 | { | |
66 | unsigned int hppa_arg_reloc; | |
c39a58e6 AM |
67 | void *mips_extr; |
68 | void *any; | |
252b5132 RH |
69 | } |
70 | tc_data; | |
71 | ||
72 | /* Version information. This is from an Elf_Internal_Versym | |
73 | structure in a SHT_GNU_versym section. It is zero if there is no | |
74 | version information. */ | |
75 | unsigned short version; | |
76 | ||
77 | } elf_symbol_type; | |
78 | \f | |
2b0f7ef9 | 79 | struct elf_strtab_hash; |
5cab59f6 AM |
80 | struct got_entry; |
81 | struct plt_entry; | |
2b0f7ef9 | 82 | |
252b5132 RH |
83 | /* ELF linker hash table entries. */ |
84 | ||
85 | struct elf_link_hash_entry | |
86 | { | |
87 | struct bfd_link_hash_entry root; | |
88 | ||
89 | /* Symbol index in output file. This is initialized to -1. It is | |
90 | set to -2 if the symbol is used by a reloc. */ | |
91 | long indx; | |
92 | ||
252b5132 RH |
93 | /* Symbol index as a dynamic symbol. Initialized to -1, and remains |
94 | -1 if this is not a dynamic symbol. */ | |
30b30c21 RH |
95 | /* ??? Note that this is consistently used as a synonym for tests |
96 | against whether we can perform various simplifying transformations | |
97 | to the code. (E.g. changing a pc-relative jump to a PLT entry | |
98 | into a pc-relative jump to the target function.) That test, which | |
99 | is often relatively complex, and someplaces wrong or incomplete, | |
100 | should really be replaced by a predicate in elflink.c. | |
101 | ||
102 | End result: this field -1 does not indicate that the symbol is | |
103 | not in the dynamic symbol table, but rather that the symbol is | |
104 | not visible outside this DSO. */ | |
252b5132 RH |
105 | long dynindx; |
106 | ||
107 | /* String table index in .dynstr if this is a dynamic symbol. */ | |
108 | unsigned long dynstr_index; | |
109 | ||
a90b9fca AM |
110 | /* Hash value of the name computed using the ELF hash function. */ |
111 | unsigned long elf_hash_value; | |
112 | ||
252b5132 RH |
113 | /* If this is a weak defined symbol from a dynamic object, this |
114 | field points to a defined symbol with the same value, if there is | |
115 | one. Otherwise it is NULL. */ | |
116 | struct elf_link_hash_entry *weakdef; | |
117 | ||
252b5132 RH |
118 | /* Version information. */ |
119 | union | |
120 | { | |
121 | /* This field is used for a symbol which is not defined in a | |
122 | regular object. It points to the version information read in | |
123 | from the dynamic object. */ | |
124 | Elf_Internal_Verdef *verdef; | |
125 | /* This field is used for a symbol which is defined in a regular | |
126 | object. It is set up in size_dynamic_sections. It points to | |
127 | the version information we should write out for this symbol. */ | |
128 | struct bfd_elf_version_tree *vertree; | |
129 | } verinfo; | |
130 | ||
131 | /* Virtual table entry use information. This array is nominally of size | |
132 | size/sizeof(target_void_pointer), though we have to be able to assume | |
133 | and track a size while the symbol is still undefined. It is indexed | |
134 | via offset/sizeof(target_void_pointer). */ | |
135 | size_t vtable_entries_size; | |
b34976b6 | 136 | bfd_boolean *vtable_entries_used; |
252b5132 RH |
137 | |
138 | /* Virtual table derivation info. */ | |
139 | struct elf_link_hash_entry *vtable_parent; | |
140 | ||
a90b9fca AM |
141 | /* If this symbol requires an entry in the global offset table, the |
142 | processor specific backend uses this field to track usage and | |
5cab59f6 AM |
143 | final offset. Two schemes are supported: The first assumes that |
144 | a symbol may only have one GOT entry, and uses REFCOUNT until | |
145 | size_dynamic_sections, at which point the contents of the .got is | |
146 | fixed. Afterward, if OFFSET is -1, then the symbol does not | |
147 | require a global offset table entry. The second scheme allows | |
148 | multiple GOT entries per symbol, managed via a linked list | |
149 | pointed to by GLIST. */ | |
150 | union gotplt_union | |
a90b9fca AM |
151 | { |
152 | bfd_signed_vma refcount; | |
153 | bfd_vma offset; | |
5cab59f6 AM |
154 | struct got_entry *glist; |
155 | struct plt_entry *plist; | |
a90b9fca AM |
156 | } got; |
157 | ||
158 | /* Same, but tracks a procedure linkage table entry. */ | |
5cab59f6 | 159 | union gotplt_union plt; |
a90b9fca AM |
160 | |
161 | /* Symbol size. */ | |
162 | bfd_size_type size; | |
163 | ||
252b5132 RH |
164 | /* Symbol type (STT_NOTYPE, STT_OBJECT, etc.). */ |
165 | char type; | |
166 | ||
9b234ee9 | 167 | /* Symbol st_other value, symbol visibility. */ |
252b5132 RH |
168 | unsigned char other; |
169 | ||
252b5132 RH |
170 | /* Some flags; legal values follow. */ |
171 | unsigned short elf_link_hash_flags; | |
172 | /* Symbol is referenced by a non-shared object. */ | |
173 | #define ELF_LINK_HASH_REF_REGULAR 01 | |
174 | /* Symbol is defined by a non-shared object. */ | |
175 | #define ELF_LINK_HASH_DEF_REGULAR 02 | |
176 | /* Symbol is referenced by a shared object. */ | |
177 | #define ELF_LINK_HASH_REF_DYNAMIC 04 | |
178 | /* Symbol is defined by a shared object. */ | |
179 | #define ELF_LINK_HASH_DEF_DYNAMIC 010 | |
180 | /* Symbol has a non-weak reference from a non-shared object. */ | |
181 | #define ELF_LINK_HASH_REF_REGULAR_NONWEAK 020 | |
182 | /* Dynamic symbol has been adjustd. */ | |
183 | #define ELF_LINK_HASH_DYNAMIC_ADJUSTED 040 | |
184 | /* Symbol needs a copy reloc. */ | |
185 | #define ELF_LINK_HASH_NEEDS_COPY 0100 | |
186 | /* Symbol needs a procedure linkage table entry. */ | |
187 | #define ELF_LINK_HASH_NEEDS_PLT 0200 | |
188 | /* Symbol appears in a non-ELF input file. */ | |
189 | #define ELF_LINK_NON_ELF 0400 | |
190 | /* Symbol should be marked as hidden in the version information. */ | |
191 | #define ELF_LINK_HIDDEN 01000 | |
192 | /* Symbol was forced to local scope due to a version script file. */ | |
193 | #define ELF_LINK_FORCED_LOCAL 02000 | |
194 | /* Symbol was marked during garbage collection. */ | |
195 | #define ELF_LINK_HASH_MARK 04000 | |
7843f00e ILT |
196 | /* Symbol is referenced by a non-GOT/non-PLT relocation. This is |
197 | not currently set by all the backends. */ | |
198 | #define ELF_LINK_NON_GOT_REF 010000 | |
1b1fe8fe L |
199 | /* Symbol has a definition in a shared object. */ |
200 | #define ELF_LINK_DYNAMIC_DEF 020000 | |
201 | /* Symbol is weak in all shared objects. */ | |
202 | #define ELF_LINK_DYNAMIC_WEAK 040000 | |
252b5132 RH |
203 | }; |
204 | ||
586119b3 AM |
205 | /* Will references to this symbol always reference the symbol |
206 | in this object? STV_PROTECTED is excluded from the visibility test | |
207 | here so that function pointer comparisons work properly. Since | |
208 | function symbols not defined in an app are set to their .plt entry, | |
209 | it's necessary for shared libs to also reference the .plt even | |
210 | though the symbol is really local to the shared lib. */ | |
986a241f | 211 | #define SYMBOL_REFERENCES_LOCAL(INFO, H) \ |
f6c52c13 | 212 | _bfd_elf_symbol_refs_local_p (H, INFO, 0) |
586119b3 AM |
213 | |
214 | /* Will _calls_ to this symbol always call the version in this object? */ | |
986a241f | 215 | #define SYMBOL_CALLS_LOCAL(INFO, H) \ |
f6c52c13 | 216 | _bfd_elf_symbol_refs_local_p (H, INFO, 1) |
586119b3 | 217 | |
30b30c21 RH |
218 | /* Records local symbols to be emitted in the dynamic symbol table. */ |
219 | ||
220 | struct elf_link_local_dynamic_entry | |
221 | { | |
222 | struct elf_link_local_dynamic_entry *next; | |
223 | ||
224 | /* The input bfd this symbol came from. */ | |
225 | bfd *input_bfd; | |
226 | ||
227 | /* The index of the local symbol being copied. */ | |
228 | long input_indx; | |
229 | ||
230 | /* The index in the outgoing dynamic symbol table. */ | |
231 | long dynindx; | |
3e932841 | 232 | |
30b30c21 RH |
233 | /* A copy of the input symbol. */ |
234 | Elf_Internal_Sym isym; | |
235 | }; | |
236 | ||
f5d44ba0 AM |
237 | struct elf_link_loaded_list |
238 | { | |
239 | struct elf_link_loaded_list *next; | |
240 | bfd *abfd; | |
241 | }; | |
242 | ||
126495ed AM |
243 | /* Structures used by the eh_frame optimization code. */ |
244 | struct cie_header | |
245 | { | |
246 | unsigned int length; | |
247 | unsigned int id; | |
248 | }; | |
249 | ||
250 | struct cie | |
251 | { | |
252 | struct cie_header hdr; | |
253 | unsigned char version; | |
254 | unsigned char augmentation[20]; | |
255 | unsigned int code_align; | |
256 | int data_align; | |
257 | unsigned int ra_column; | |
258 | unsigned int augmentation_size; | |
259 | struct elf_link_hash_entry *personality; | |
260 | unsigned char per_encoding; | |
261 | unsigned char lsda_encoding; | |
262 | unsigned char fde_encoding; | |
263 | unsigned char initial_insn_length; | |
264 | unsigned char make_relative; | |
265 | unsigned char make_lsda_relative; | |
266 | unsigned char initial_instructions[50]; | |
267 | }; | |
268 | ||
269 | struct eh_cie_fde | |
270 | { | |
271 | unsigned int offset; | |
272 | unsigned int size; | |
273 | asection *sec; | |
274 | unsigned int new_offset; | |
275 | unsigned char fde_encoding; | |
276 | unsigned char lsda_encoding; | |
277 | unsigned char lsda_offset; | |
278 | unsigned char cie : 1; | |
279 | unsigned char removed : 1; | |
280 | unsigned char make_relative : 1; | |
281 | unsigned char make_lsda_relative : 1; | |
282 | unsigned char per_encoding_relative : 1; | |
283 | }; | |
284 | ||
285 | struct eh_frame_sec_info | |
286 | { | |
287 | unsigned int count; | |
288 | unsigned int alloced; | |
289 | struct eh_cie_fde entry[1]; | |
290 | }; | |
291 | ||
292 | struct eh_frame_array_ent | |
293 | { | |
294 | bfd_vma initial_loc; | |
295 | bfd_vma fde; | |
296 | }; | |
297 | ||
298 | struct eh_frame_hdr_info | |
299 | { | |
300 | struct cie last_cie; | |
301 | asection *last_cie_sec; | |
302 | asection *hdr_sec; | |
303 | unsigned int last_cie_offset; | |
304 | unsigned int fde_count, array_count; | |
305 | struct eh_frame_array_ent *array; | |
306 | /* TRUE if .eh_frame_hdr should contain the sorted search table. | |
307 | We build it if we successfully read all .eh_frame input sections | |
308 | and recognize them. */ | |
b34976b6 | 309 | bfd_boolean table; |
126495ed AM |
310 | }; |
311 | ||
13ae64f3 JJ |
312 | /* Cached start, size and alignment of PT_TLS segment. */ |
313 | struct elf_link_tls_segment | |
314 | { | |
315 | bfd_vma start; | |
316 | bfd_size_type size; | |
317 | unsigned int align; | |
318 | }; | |
319 | ||
252b5132 RH |
320 | /* ELF linker hash table. */ |
321 | ||
322 | struct elf_link_hash_table | |
323 | { | |
324 | struct bfd_link_hash_table root; | |
51b64d56 | 325 | |
252b5132 RH |
326 | /* Whether we have created the special dynamic sections required |
327 | when linking against or generating a shared object. */ | |
b34976b6 | 328 | bfd_boolean dynamic_sections_created; |
51b64d56 | 329 | |
252b5132 RH |
330 | /* The BFD used to hold special sections created by the linker. |
331 | This will be the first BFD found which requires these sections to | |
332 | be created. */ | |
333 | bfd *dynobj; | |
51b64d56 AM |
334 | |
335 | /* The value to use when initialising got.refcount/offset and | |
336 | plt.refcount/offset in an elf_link_hash_entry. Set to zero when | |
5cab59f6 AM |
337 | the values are refcounts. Set to init_offset in |
338 | size_dynamic_sections when the values may be offsets. */ | |
339 | union gotplt_union init_refcount; | |
340 | ||
341 | /* The value to use for got.refcount/offset and plt.refcount/offset | |
342 | when the values may be offsets. Normally (bfd_vma) -1. */ | |
343 | union gotplt_union init_offset; | |
51b64d56 | 344 | |
252b5132 RH |
345 | /* The number of symbols found in the link which must be put into |
346 | the .dynsym section. */ | |
347 | bfd_size_type dynsymcount; | |
51b64d56 | 348 | |
252b5132 RH |
349 | /* The string table of dynamic symbols, which becomes the .dynstr |
350 | section. */ | |
2b0f7ef9 | 351 | struct elf_strtab_hash *dynstr; |
51b64d56 | 352 | |
252b5132 RH |
353 | /* The number of buckets in the hash table in the .hash section. |
354 | This is based on the number of dynamic symbols. */ | |
355 | bfd_size_type bucketcount; | |
51b64d56 | 356 | |
252b5132 RH |
357 | /* A linked list of DT_NEEDED names found in dynamic objects |
358 | included in the link. */ | |
359 | struct bfd_link_needed_list *needed; | |
51b64d56 | 360 | |
252b5132 RH |
361 | /* The _GLOBAL_OFFSET_TABLE_ symbol. */ |
362 | struct elf_link_hash_entry *hgot; | |
51b64d56 | 363 | |
252b5132 | 364 | /* A pointer to information used to link stabs in sections. */ |
c39a58e6 | 365 | void *stab_info; |
51b64d56 | 366 | |
f5fa8ca2 | 367 | /* A pointer to information used to merge SEC_MERGE sections. */ |
c39a58e6 | 368 | void *merge_info; |
51b64d56 | 369 | |
126495ed AM |
370 | /* Used by eh_frame code when editing .eh_frame. */ |
371 | struct eh_frame_hdr_info eh_info; | |
372 | ||
30b30c21 RH |
373 | /* A linked list of local symbols to be added to .dynsym. */ |
374 | struct elf_link_local_dynamic_entry *dynlocal; | |
51b64d56 | 375 | |
a963dc6a L |
376 | /* A linked list of DT_RPATH/DT_RUNPATH names found in dynamic |
377 | objects included in the link. */ | |
378 | struct bfd_link_needed_list *runpath; | |
13ae64f3 JJ |
379 | |
380 | /* Cached start, size and alignment of PT_TLS segment. */ | |
381 | struct elf_link_tls_segment *tls_segment; | |
f5d44ba0 AM |
382 | |
383 | /* A linked list of BFD's loaded in the link. */ | |
384 | struct elf_link_loaded_list *loaded; | |
252b5132 RH |
385 | }; |
386 | ||
387 | /* Look up an entry in an ELF linker hash table. */ | |
388 | ||
389 | #define elf_link_hash_lookup(table, string, create, copy, follow) \ | |
390 | ((struct elf_link_hash_entry *) \ | |
391 | bfd_link_hash_lookup (&(table)->root, (string), (create), \ | |
392 | (copy), (follow))) | |
393 | ||
394 | /* Traverse an ELF linker hash table. */ | |
395 | ||
396 | #define elf_link_hash_traverse(table, func, info) \ | |
397 | (bfd_link_hash_traverse \ | |
398 | (&(table)->root, \ | |
c39a58e6 | 399 | (bfd_boolean (*) (struct bfd_link_hash_entry *, void *)) (func), \ |
252b5132 RH |
400 | (info))) |
401 | ||
402 | /* Get the ELF linker hash table from a link_info structure. */ | |
403 | ||
404 | #define elf_hash_table(p) ((struct elf_link_hash_table *) ((p)->hash)) | |
8ea2e4bd | 405 | |
b34976b6 | 406 | /* Returns TRUE if the hash table is a struct elf_link_hash_table. */ |
8ea2e4bd NC |
407 | #define is_elf_hash_table(p) \ |
408 | ((p)->hash->type == bfd_link_elf_hash_table) | |
ec338859 AM |
409 | |
410 | /* Used by bfd_section_from_r_symndx to cache a small number of local | |
411 | symbol to section mappings. */ | |
412 | #define LOCAL_SYM_CACHE_SIZE 32 | |
413 | struct sym_sec_cache | |
414 | { | |
415 | bfd *abfd; | |
416 | unsigned long indx[LOCAL_SYM_CACHE_SIZE]; | |
417 | asection *sec[LOCAL_SYM_CACHE_SIZE]; | |
418 | }; | |
252b5132 RH |
419 | \f |
420 | /* Constant information held for an ELF backend. */ | |
421 | ||
422 | struct elf_size_info { | |
423 | unsigned char sizeof_ehdr, sizeof_phdr, sizeof_shdr; | |
424 | unsigned char sizeof_rel, sizeof_rela, sizeof_sym, sizeof_dyn, sizeof_note; | |
425 | ||
c7ac6ff8 MM |
426 | /* The size of entries in the .hash section. */ |
427 | unsigned char sizeof_hash_entry; | |
428 | ||
429 | /* The number of internal relocations to allocate per external | |
430 | relocation entry. */ | |
431 | unsigned char int_rels_per_ext_rel; | |
947216bf AM |
432 | /* We use some fixed size arrays. This should be large enough to |
433 | handle all back-ends. */ | |
434 | #define MAX_INT_RELS_PER_EXT_REL 3 | |
c7ac6ff8 | 435 | |
45d6a902 | 436 | unsigned char arch_size, log_file_align; |
252b5132 | 437 | unsigned char elfclass, ev_current; |
dc810e39 | 438 | int (*write_out_phdrs) |
c39a58e6 AM |
439 | (bfd *, const Elf_Internal_Phdr *, unsigned int); |
440 | bfd_boolean | |
441 | (*write_shdrs_and_ehdr) (bfd *); | |
dc810e39 | 442 | void (*write_relocs) |
c39a58e6 | 443 | (bfd *, asection *, void *); |
73ff0d56 | 444 | void (*swap_symbol_in) |
c39a58e6 | 445 | (bfd *, const void *, const void *, Elf_Internal_Sym *); |
dc810e39 | 446 | void (*swap_symbol_out) |
c39a58e6 | 447 | (bfd *, const Elf_Internal_Sym *, void *, void *); |
b34976b6 | 448 | bfd_boolean (*slurp_reloc_table) |
c39a58e6 | 449 | (bfd *, asection *, asymbol **, bfd_boolean); |
dc810e39 | 450 | long (*slurp_symbol_table) |
c39a58e6 | 451 | (bfd *, asymbol **, bfd_boolean); |
dc810e39 | 452 | void (*swap_dyn_in) |
c39a58e6 | 453 | (bfd *, const void *, Elf_Internal_Dyn *); |
dc810e39 | 454 | void (*swap_dyn_out) |
c39a58e6 | 455 | (bfd *, const Elf_Internal_Dyn *, void *); |
c7ac6ff8 | 456 | |
947216bf AM |
457 | /* This function is called to swap in a REL relocation. If an |
458 | external relocation corresponds to more than one internal | |
459 | relocation, then all relocations are swapped in at once. */ | |
c7ac6ff8 | 460 | void (*swap_reloc_in) |
c39a58e6 | 461 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
c7ac6ff8 | 462 | |
947216bf | 463 | /* This function is called to swap out a REL relocation. */ |
c7ac6ff8 | 464 | void (*swap_reloc_out) |
c39a58e6 | 465 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
c7ac6ff8 | 466 | |
947216bf AM |
467 | /* This function is called to swap in a RELA relocation. If an |
468 | external relocation corresponds to more than one internal | |
469 | relocation, then all relocations are swapped in at once. */ | |
c7ac6ff8 | 470 | void (*swap_reloca_in) |
c39a58e6 | 471 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
c7ac6ff8 | 472 | |
947216bf | 473 | /* This function is called to swap out a RELA relocation. */ |
c7ac6ff8 | 474 | void (*swap_reloca_out) |
c39a58e6 | 475 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
252b5132 RH |
476 | }; |
477 | ||
478 | #define elf_symbol_from(ABFD,S) \ | |
479 | (((S)->the_bfd->xvec->flavour == bfd_target_elf_flavour \ | |
480 | && (S)->the_bfd->tdata.elf_obj_data != 0) \ | |
481 | ? (elf_symbol_type *) (S) \ | |
482 | : 0) | |
483 | ||
db6751f2 JJ |
484 | enum elf_reloc_type_class { |
485 | reloc_class_normal, | |
486 | reloc_class_relative, | |
487 | reloc_class_plt, | |
488 | reloc_class_copy | |
489 | }; | |
490 | ||
73d074b4 DJ |
491 | struct elf_reloc_cookie |
492 | { | |
493 | Elf_Internal_Rela *rels, *rel, *relend; | |
6cdc0ccc | 494 | Elf_Internal_Sym *locsyms; |
73d074b4 DJ |
495 | bfd *abfd; |
496 | size_t locsymcount; | |
497 | size_t extsymoff; | |
498 | struct elf_link_hash_entry **sym_hashes; | |
b34976b6 | 499 | bfd_boolean bad_symtab; |
73d074b4 DJ |
500 | }; |
501 | ||
c6e90b02 TS |
502 | /* The level of IRIX compatibility we're striving for. */ |
503 | ||
504 | typedef enum { | |
505 | ict_none, | |
506 | ict_irix5, | |
507 | ict_irix6 | |
508 | } irix_compat_t; | |
509 | ||
2f89ff8d L |
510 | /* Mapping of ELF section names and types. */ |
511 | struct bfd_elf_special_section | |
512 | { | |
513 | const char *prefix; | |
514 | size_t prefix_length; | |
515 | const char *suffix; | |
516 | size_t suffix_length; | |
517 | int type; | |
518 | int attributes; | |
519 | }; | |
520 | ||
252b5132 RH |
521 | struct elf_backend_data |
522 | { | |
252b5132 RH |
523 | /* The architecture for this backend. */ |
524 | enum bfd_architecture arch; | |
525 | ||
526 | /* The ELF machine code (EM_xxxx) for this backend. */ | |
527 | int elf_machine_code; | |
528 | ||
529 | /* The maximum page size for this backend. */ | |
530 | bfd_vma maxpagesize; | |
531 | ||
252b5132 RH |
532 | /* A function to translate an ELF RELA relocation to a BFD arelent |
533 | structure. */ | |
dc810e39 | 534 | void (*elf_info_to_howto) |
c39a58e6 | 535 | (bfd *, arelent *, Elf_Internal_Rela *); |
252b5132 RH |
536 | |
537 | /* A function to translate an ELF REL relocation to a BFD arelent | |
538 | structure. */ | |
dc810e39 | 539 | void (*elf_info_to_howto_rel) |
c39a58e6 | 540 | (bfd *, arelent *, Elf_Internal_Rela *); |
252b5132 RH |
541 | |
542 | /* A function to determine whether a symbol is global when | |
543 | partitioning the symbol table into local and global symbols. | |
544 | This should be NULL for most targets, in which case the correct | |
545 | thing will be done. MIPS ELF, at least on the Irix 5, has | |
546 | special requirements. */ | |
b34976b6 | 547 | bfd_boolean (*elf_backend_sym_is_global) |
c39a58e6 | 548 | (bfd *, asymbol *); |
252b5132 RH |
549 | |
550 | /* The remaining functions are hooks which are called only if they | |
551 | are not NULL. */ | |
552 | ||
553 | /* A function to permit a backend specific check on whether a | |
554 | particular BFD format is relevant for an object file, and to | |
555 | permit the backend to set any global information it wishes. When | |
556 | this is called elf_elfheader is set, but anything else should be | |
b34976b6 | 557 | used with caution. If this returns FALSE, the check_format |
252b5132 | 558 | routine will return a bfd_error_wrong_format error. */ |
b34976b6 | 559 | bfd_boolean (*elf_backend_object_p) |
c39a58e6 | 560 | (bfd *); |
252b5132 RH |
561 | |
562 | /* A function to do additional symbol processing when reading the | |
563 | ELF symbol table. This is where any processor-specific special | |
564 | section indices are handled. */ | |
dc810e39 | 565 | void (*elf_backend_symbol_processing) |
c39a58e6 | 566 | (bfd *, asymbol *); |
252b5132 RH |
567 | |
568 | /* A function to do additional symbol processing after reading the | |
569 | entire ELF symbol table. */ | |
b34976b6 | 570 | bfd_boolean (*elf_backend_symbol_table_processing) |
c39a58e6 | 571 | (bfd *, elf_symbol_type *, unsigned int); |
252b5132 RH |
572 | |
573 | /* A function to set the type of the info field. Processor-specific | |
3e932841 | 574 | types should be handled here. */ |
dc810e39 | 575 | int (*elf_backend_get_symbol_type) |
c39a58e6 | 576 | (Elf_Internal_Sym *, int); |
60bcf0fa | 577 | |
252b5132 RH |
578 | /* A function to do additional processing on the ELF section header |
579 | just before writing it out. This is used to set the flags and | |
580 | type fields for some sections, or to actually write out data for | |
581 | unusual sections. */ | |
b34976b6 | 582 | bfd_boolean (*elf_backend_section_processing) |
c39a58e6 | 583 | (bfd *, Elf_Internal_Shdr *); |
252b5132 RH |
584 | |
585 | /* A function to handle unusual section types when creating BFD | |
586 | sections from ELF sections. */ | |
b34976b6 | 587 | bfd_boolean (*elf_backend_section_from_shdr) |
c39a58e6 | 588 | (bfd *, Elf_Internal_Shdr *, const char *); |
252b5132 | 589 | |
fa152c49 JW |
590 | /* A function to convert machine dependent section header flags to |
591 | BFD internal section header flags. */ | |
b34976b6 | 592 | bfd_boolean (*elf_backend_section_flags) |
c39a58e6 | 593 | (flagword *, Elf_Internal_Shdr *); |
fa152c49 | 594 | |
20cfcaae | 595 | /* A function to handle unusual program segment types when creating BFD |
3e932841 | 596 | sections from ELF program segments. */ |
b34976b6 | 597 | bfd_boolean (*elf_backend_section_from_phdr) |
c39a58e6 | 598 | (bfd *, Elf_Internal_Phdr *, int); |
20cfcaae | 599 | |
252b5132 RH |
600 | /* A function to set up the ELF section header for a BFD section in |
601 | preparation for writing it out. This is where the flags and type | |
602 | fields are set for unusual sections. */ | |
b34976b6 | 603 | bfd_boolean (*elf_backend_fake_sections) |
c39a58e6 | 604 | (bfd *, Elf_Internal_Shdr *, asection *); |
252b5132 RH |
605 | |
606 | /* A function to get the ELF section index for a BFD section. If | |
b34976b6 | 607 | this returns TRUE, the section was found. If it is a normal ELF |
252b5132 RH |
608 | section, *RETVAL should be left unchanged. If it is not a normal |
609 | ELF section *RETVAL should be set to the SHN_xxxx index. */ | |
b34976b6 | 610 | bfd_boolean (*elf_backend_section_from_bfd_section) |
c39a58e6 | 611 | (bfd *, asection *, int *retval); |
252b5132 RH |
612 | |
613 | /* If this field is not NULL, it is called by the add_symbols phase | |
614 | of a link just before adding a symbol to the global linker hash | |
615 | table. It may modify any of the fields as it wishes. If *NAME | |
616 | is set to NULL, the symbol will be skipped rather than being | |
617 | added to the hash table. This function is responsible for | |
618 | handling all processor dependent symbol bindings and section | |
619 | indices, and must set at least *FLAGS and *SEC for each processor | |
620 | dependent case; failure to do so will cause a link error. */ | |
b34976b6 | 621 | bfd_boolean (*elf_add_symbol_hook) |
c39a58e6 AM |
622 | (bfd *abfd, struct bfd_link_info *info, const Elf_Internal_Sym *, |
623 | const char **name, flagword *flags, asection **sec, bfd_vma *value); | |
252b5132 RH |
624 | |
625 | /* If this field is not NULL, it is called by the elf_link_output_sym | |
626 | phase of a link for each symbol which will appear in the object file. */ | |
b34976b6 | 627 | bfd_boolean (*elf_backend_link_output_symbol_hook) |
c39a58e6 AM |
628 | (bfd *, struct bfd_link_info *info, const char *, Elf_Internal_Sym *, |
629 | asection *); | |
252b5132 RH |
630 | |
631 | /* The CREATE_DYNAMIC_SECTIONS function is called by the ELF backend | |
632 | linker the first time it encounters a dynamic object in the link. | |
633 | This function must create any sections required for dynamic | |
634 | linking. The ABFD argument is a dynamic object. The .interp, | |
635 | .dynamic, .dynsym, .dynstr, and .hash functions have already been | |
636 | created, and this function may modify the section flags if | |
637 | desired. This function will normally create the .got and .plt | |
638 | sections, but different backends have different requirements. */ | |
b34976b6 | 639 | bfd_boolean (*elf_backend_create_dynamic_sections) |
c39a58e6 | 640 | (bfd *abfd, struct bfd_link_info *info); |
252b5132 RH |
641 | |
642 | /* The CHECK_RELOCS function is called by the add_symbols phase of | |
643 | the ELF backend linker. It is called once for each section with | |
644 | relocs of an object file, just after the symbols for the object | |
645 | file have been added to the global linker hash table. The | |
646 | function must look through the relocs and do any special handling | |
647 | required. This generally means allocating space in the global | |
648 | offset table, and perhaps allocating space for a reloc. The | |
649 | relocs are always passed as Rela structures; if the section | |
650 | actually uses Rel structures, the r_addend field will always be | |
651 | zero. */ | |
b34976b6 | 652 | bfd_boolean (*check_relocs) |
c39a58e6 AM |
653 | (bfd *abfd, struct bfd_link_info *info, asection *o, |
654 | const Elf_Internal_Rela *relocs); | |
252b5132 RH |
655 | |
656 | /* The ADJUST_DYNAMIC_SYMBOL function is called by the ELF backend | |
657 | linker for every symbol which is defined by a dynamic object and | |
658 | referenced by a regular object. This is called after all the | |
659 | input files have been seen, but before the SIZE_DYNAMIC_SECTIONS | |
660 | function has been called. The hash table entry should be | |
661 | bfd_link_hash_defined ore bfd_link_hash_defweak, and it should be | |
662 | defined in a section from a dynamic object. Dynamic object | |
663 | sections are not included in the final link, and this function is | |
664 | responsible for changing the value to something which the rest of | |
665 | the link can deal with. This will normally involve adding an | |
666 | entry to the .plt or .got or some such section, and setting the | |
667 | symbol to point to that. */ | |
b34976b6 | 668 | bfd_boolean (*elf_backend_adjust_dynamic_symbol) |
c39a58e6 | 669 | (struct bfd_link_info *info, struct elf_link_hash_entry *h); |
252b5132 RH |
670 | |
671 | /* The ALWAYS_SIZE_SECTIONS function is called by the backend linker | |
672 | after all the linker input files have been seen but before the | |
673 | section sizes have been set. This is called after | |
674 | ADJUST_DYNAMIC_SYMBOL, but before SIZE_DYNAMIC_SECTIONS. */ | |
b34976b6 | 675 | bfd_boolean (*elf_backend_always_size_sections) |
c39a58e6 | 676 | (bfd *output_bfd, struct bfd_link_info *info); |
252b5132 RH |
677 | |
678 | /* The SIZE_DYNAMIC_SECTIONS function is called by the ELF backend | |
679 | linker after all the linker input files have been seen but before | |
680 | the sections sizes have been set. This is called after | |
681 | ADJUST_DYNAMIC_SYMBOL has been called on all appropriate symbols. | |
682 | It is only called when linking against a dynamic object. It must | |
683 | set the sizes of the dynamic sections, and may fill in their | |
684 | contents as well. The generic ELF linker can handle the .dynsym, | |
685 | .dynstr and .hash sections. This function must handle the | |
686 | .interp section and any sections created by the | |
687 | CREATE_DYNAMIC_SECTIONS entry point. */ | |
b34976b6 | 688 | bfd_boolean (*elf_backend_size_dynamic_sections) |
c39a58e6 | 689 | (bfd *output_bfd, struct bfd_link_info *info); |
252b5132 RH |
690 | |
691 | /* The RELOCATE_SECTION function is called by the ELF backend linker | |
692 | to handle the relocations for a section. | |
693 | ||
694 | The relocs are always passed as Rela structures; if the section | |
695 | actually uses Rel structures, the r_addend field will always be | |
696 | zero. | |
697 | ||
698 | This function is responsible for adjust the section contents as | |
699 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 700 | relocatable output file) adjusting the reloc addend as |
252b5132 RH |
701 | necessary. |
702 | ||
703 | This function does not have to worry about setting the reloc | |
704 | address or the reloc symbol index. | |
705 | ||
706 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
707 | ||
708 | LOCAL_SECTIONS is an array giving the section in the input file | |
709 | corresponding to the st_shndx field of each local symbol. | |
710 | ||
711 | The global hash table entry for the global symbols can be found | |
712 | via elf_sym_hashes (input_bfd). | |
713 | ||
1049f94e | 714 | When generating relocatable output, this function must handle |
252b5132 RH |
715 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
716 | going to be the section symbol corresponding to the output | |
717 | section, which means that the addend must be adjusted | |
718 | accordingly. */ | |
b34976b6 | 719 | bfd_boolean (*elf_backend_relocate_section) |
c39a58e6 AM |
720 | (bfd *output_bfd, struct bfd_link_info *info, bfd *input_bfd, |
721 | asection *input_section, bfd_byte *contents, Elf_Internal_Rela *relocs, | |
722 | Elf_Internal_Sym *local_syms, asection **local_sections); | |
252b5132 RH |
723 | |
724 | /* The FINISH_DYNAMIC_SYMBOL function is called by the ELF backend | |
725 | linker just before it writes a symbol out to the .dynsym section. | |
726 | The processor backend may make any required adjustment to the | |
727 | symbol. It may also take the opportunity to set contents of the | |
728 | dynamic sections. Note that FINISH_DYNAMIC_SYMBOL is called on | |
729 | all .dynsym symbols, while ADJUST_DYNAMIC_SYMBOL is only called | |
730 | on those symbols which are defined by a dynamic object. */ | |
b34976b6 | 731 | bfd_boolean (*elf_backend_finish_dynamic_symbol) |
c39a58e6 AM |
732 | (bfd *output_bfd, struct bfd_link_info *info, |
733 | struct elf_link_hash_entry *h, Elf_Internal_Sym *sym); | |
252b5132 RH |
734 | |
735 | /* The FINISH_DYNAMIC_SECTIONS function is called by the ELF backend | |
736 | linker just before it writes all the dynamic sections out to the | |
737 | output file. The FINISH_DYNAMIC_SYMBOL will have been called on | |
738 | all dynamic symbols. */ | |
b34976b6 | 739 | bfd_boolean (*elf_backend_finish_dynamic_sections) |
c39a58e6 | 740 | (bfd *output_bfd, struct bfd_link_info *info); |
252b5132 RH |
741 | |
742 | /* A function to do any beginning processing needed for the ELF file | |
743 | before building the ELF headers and computing file positions. */ | |
744 | void (*elf_backend_begin_write_processing) | |
c39a58e6 | 745 | (bfd *, struct bfd_link_info *); |
252b5132 RH |
746 | |
747 | /* A function to do any final processing needed for the ELF file | |
b34976b6 | 748 | before writing it out. The LINKER argument is TRUE if this BFD |
252b5132 RH |
749 | was created by the ELF backend linker. */ |
750 | void (*elf_backend_final_write_processing) | |
c39a58e6 | 751 | (bfd *, bfd_boolean linker); |
252b5132 RH |
752 | |
753 | /* This function is called by get_program_header_size. It should | |
754 | return the number of additional program segments which this BFD | |
755 | will need. It should return -1 on error. */ | |
dc810e39 | 756 | int (*elf_backend_additional_program_headers) |
c39a58e6 | 757 | (bfd *); |
252b5132 RH |
758 | |
759 | /* This function is called to modify an existing segment map in a | |
760 | backend specific fashion. */ | |
b34976b6 | 761 | bfd_boolean (*elf_backend_modify_segment_map) |
c39a58e6 | 762 | (bfd *); |
252b5132 RH |
763 | |
764 | /* This function is called during section gc to discover the section a | |
1e2f5b6e | 765 | particular relocation refers to. */ |
252b5132 | 766 | asection * (*gc_mark_hook) |
c39a58e6 AM |
767 | (asection *sec, struct bfd_link_info *, Elf_Internal_Rela *, |
768 | struct elf_link_hash_entry *h, Elf_Internal_Sym *); | |
252b5132 RH |
769 | |
770 | /* This function, if defined, is called during the sweep phase of gc | |
771 | in order that a backend might update any data structures it might | |
772 | be maintaining. */ | |
b34976b6 | 773 | bfd_boolean (*gc_sweep_hook) |
c39a58e6 AM |
774 | (bfd *abfd, struct bfd_link_info *info, asection *o, |
775 | const Elf_Internal_Rela *relocs); | |
252b5132 | 776 | |
e6c51ed4 NC |
777 | /* This function, if defined, is called after the ELF headers have |
778 | been created. This allows for things like the OS and ABI versions | |
779 | to be changed. */ | |
780 | void (*elf_backend_post_process_headers) | |
c39a58e6 | 781 | (bfd *, struct bfd_link_info *); |
e6c51ed4 | 782 | |
587ff49e RH |
783 | /* This function, if defined, prints a symbol to file and returns the |
784 | name of the symbol to be printed. It should return NULL to fall | |
785 | back to default symbol printing. */ | |
786 | const char *(*elf_backend_print_symbol_all) | |
c39a58e6 | 787 | (bfd *, void *, asymbol *); |
587ff49e RH |
788 | |
789 | /* This function, if defined, is called after all local symbols and | |
790 | global symbols converted to locals are emited into the symtab | |
791 | section. It allows the backend to emit special global symbols | |
792 | not handled in the hash table. */ | |
b34976b6 | 793 | bfd_boolean (*elf_backend_output_arch_syms) |
c39a58e6 AM |
794 | (bfd *, struct bfd_link_info *, void *, |
795 | bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *)); | |
587ff49e | 796 | |
d4c88bbb | 797 | /* Copy any information related to dynamic linking from a pre-existing |
0a991dfe AM |
798 | symbol to a newly created symbol. Also called to copy flags and |
799 | other back-end info to a weakdef, in which case the symbol is not | |
800 | newly created and plt/got refcounts and dynamic indices should not | |
801 | be copied. */ | |
c61b8717 | 802 | void (*elf_backend_copy_indirect_symbol) |
9c5bfbb7 | 803 | (const struct elf_backend_data *, struct elf_link_hash_entry *, |
c39a58e6 | 804 | struct elf_link_hash_entry *); |
c61b8717 RH |
805 | |
806 | /* Modify any information related to dynamic linking such that the | |
807 | symbol is not exported. */ | |
808 | void (*elf_backend_hide_symbol) | |
c39a58e6 | 809 | (struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean); |
c61b8717 | 810 | |
9317eacc CM |
811 | /* Emit relocations. Overrides default routine for emitting relocs, |
812 | except during a relocatable link, or if all relocs are being emitted. */ | |
b34976b6 | 813 | bfd_boolean (*elf_backend_emit_relocs) |
c39a58e6 | 814 | (bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *); |
9317eacc CM |
815 | |
816 | /* Count relocations. Not called for relocatable links | |
817 | or if all relocs are being preserved in the output. */ | |
818 | unsigned int (*elf_backend_count_relocs) | |
c39a58e6 | 819 | (asection *, Elf_Internal_Rela *); |
9317eacc | 820 | |
bb0082d6 AM |
821 | /* This function, if defined, is called when an NT_PRSTATUS note is found |
822 | in a core file. */ | |
b34976b6 | 823 | bfd_boolean (*elf_backend_grok_prstatus) |
c39a58e6 | 824 | (bfd *, Elf_Internal_Note *); |
bb0082d6 AM |
825 | |
826 | /* This function, if defined, is called when an NT_PSINFO or NT_PRPSINFO | |
827 | note is found in a core file. */ | |
b34976b6 | 828 | bfd_boolean (*elf_backend_grok_psinfo) |
c39a58e6 | 829 | (bfd *, Elf_Internal_Note *); |
bb0082d6 | 830 | |
db6751f2 | 831 | /* Functions to print VMAs. Special code to handle 64 bit ELF files. */ |
dc810e39 | 832 | void (* elf_backend_sprintf_vma) |
c39a58e6 | 833 | (bfd *, char *, bfd_vma); |
dc810e39 | 834 | void (* elf_backend_fprintf_vma) |
c39a58e6 | 835 | (bfd *, void *, bfd_vma); |
4e771d61 | 836 | |
db6751f2 | 837 | /* This function returns class of a reloc type. */ |
f51e552e | 838 | enum elf_reloc_type_class (*elf_backend_reloc_type_class) |
c39a58e6 | 839 | (const Elf_Internal_Rela *); |
db6751f2 | 840 | |
73d074b4 DJ |
841 | /* This function, if defined, removes information about discarded functions |
842 | from other sections which mention them. */ | |
b34976b6 | 843 | bfd_boolean (*elf_backend_discard_info) |
c39a58e6 | 844 | (bfd *, struct elf_reloc_cookie *, struct bfd_link_info *); |
73d074b4 DJ |
845 | |
846 | /* This function, if defined, signals that the function above has removed | |
847 | the discarded relocations for this section. */ | |
b34976b6 | 848 | bfd_boolean (*elf_backend_ignore_discarded_relocs) |
c39a58e6 | 849 | (asection *); |
73d074b4 DJ |
850 | |
851 | /* This function, if defined, may write out the given section. | |
b34976b6 AM |
852 | Returns TRUE if it did so and FALSE if the caller should. */ |
853 | bfd_boolean (*elf_backend_write_section) | |
c39a58e6 | 854 | (bfd *, asection *, bfd_byte *); |
73d074b4 | 855 | |
c6e90b02 TS |
856 | /* The level of IRIX compatibility we're striving for. |
857 | MIPS ELF specific function. */ | |
858 | irix_compat_t (*elf_backend_mips_irix_compat) | |
c39a58e6 | 859 | (bfd *); |
c6e90b02 TS |
860 | |
861 | reloc_howto_type *(*elf_backend_mips_rtype_to_howto) | |
c39a58e6 | 862 | (unsigned int, bfd_boolean); |
c6e90b02 | 863 | |
252b5132 RH |
864 | /* The swapping table to use when dealing with ECOFF information. |
865 | Used for the MIPS ELF .mdebug section. */ | |
866 | const struct ecoff_debug_swap *elf_backend_ecoff_debug_swap; | |
867 | ||
8d6337fe RM |
868 | /* This function implements `bfd_elf_bfd_from_remote_memory'; |
869 | see elf.c, elfcode.h. */ | |
870 | bfd *(*elf_backend_bfd_from_remote_memory) | |
c39a58e6 AM |
871 | (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep, |
872 | int (*target_read_memory) (bfd_vma vma, char *myaddr, int len)); | |
8d6337fe | 873 | |
252b5132 RH |
874 | /* Alternate EM_xxxx machine codes for this backend. */ |
875 | int elf_machine_alt1; | |
876 | int elf_machine_alt2; | |
877 | ||
878 | const struct elf_size_info *s; | |
879 | ||
2f89ff8d L |
880 | /* An array of target specific special section map. */ |
881 | const struct bfd_elf_special_section *special_sections; | |
882 | ||
252b5132 RH |
883 | /* offset of the _GLOBAL_OFFSET_TABLE_ symbol from the start of the |
884 | .got section */ | |
885 | bfd_vma got_symbol_offset; | |
886 | ||
887 | /* The size in bytes of the headers for the GOT and PLT. This includes | |
888 | the so-called reserved entries on some systems. */ | |
889 | bfd_vma got_header_size; | |
890 | bfd_vma plt_header_size; | |
891 | ||
b34976b6 AM |
892 | /* This is TRUE if the linker should act like collect and gather |
893 | global constructors and destructors by name. This is TRUE for | |
86dc0f79 RH |
894 | MIPS ELF because the Irix 5 tools can not handle the .init |
895 | section. */ | |
896 | unsigned collect : 1; | |
897 | ||
b34976b6 AM |
898 | /* This is TRUE if the linker should ignore changes to the type of a |
899 | symbol. This is TRUE for MIPS ELF because some Irix 5 objects | |
86dc0f79 RH |
900 | record undefined functions as STT_OBJECT although the definitions |
901 | are STT_FUNC. */ | |
902 | unsigned type_change_ok : 1; | |
903 | ||
bf572ba0 MM |
904 | /* Whether the backend may use REL relocations. (Some backends use |
905 | both REL and RELA relocations, and this flag is set for those | |
906 | backends.) */ | |
907 | unsigned may_use_rel_p : 1; | |
60bcf0fa | 908 | |
bf572ba0 MM |
909 | /* Whether the backend may use RELA relocations. (Some backends use |
910 | both REL and RELA relocations, and this flag is set for those | |
911 | backends.) */ | |
912 | unsigned may_use_rela_p : 1; | |
913 | ||
914 | /* Whether the default relocation type is RELA. If a backend with | |
915 | this flag set wants REL relocations for a particular section, | |
916 | it must note that explicitly. Similarly, if this flag is clear, | |
60bcf0fa NC |
917 | and the backend wants RELA relocations for a particular |
918 | section. */ | |
bf572ba0 MM |
919 | unsigned default_use_rela_p : 1; |
920 | ||
b491616a AM |
921 | /* Set if RELA relocations for a relocatable link can be handled by |
922 | generic code. Backends that set this flag need do nothing in the | |
923 | backend relocate_section routine for relocatable linking. */ | |
924 | unsigned rela_normal : 1; | |
925 | ||
b34976b6 | 926 | /* TRUE if addresses "naturally" sign extend. This is used when |
86dc0f79 RH |
927 | swapping in from Elf32 when BFD64. */ |
928 | unsigned sign_extend_vma : 1; | |
929 | ||
252b5132 RH |
930 | unsigned want_got_plt : 1; |
931 | unsigned plt_readonly : 1; | |
932 | unsigned want_plt_sym : 1; | |
933 | unsigned plt_not_loaded : 1; | |
934 | unsigned plt_alignment : 4; | |
935 | unsigned can_gc_sections : 1; | |
51b64d56 | 936 | unsigned can_refcount : 1; |
2517a57f | 937 | unsigned want_got_sym : 1; |
3018b441 | 938 | unsigned want_dynbss : 1; |
5e8d7549 NC |
939 | /* Targets which do not support physical addressing often require |
940 | that the p_paddr field in the section header to be set to zero. | |
941 | This field indicates whether this behavior is required. */ | |
942 | unsigned want_p_paddr_set_to_zero : 1; | |
252b5132 RH |
943 | }; |
944 | ||
945 | /* Information stored for each BFD section in an ELF file. This | |
946 | structure is allocated by elf_new_section_hook. */ | |
947 | ||
948 | struct bfd_elf_section_data | |
949 | { | |
950 | /* The ELF header for this section. */ | |
951 | Elf_Internal_Shdr this_hdr; | |
0c715baa | 952 | |
252b5132 RH |
953 | /* The ELF header for the reloc section associated with this |
954 | section, if any. */ | |
955 | Elf_Internal_Shdr rel_hdr; | |
0c715baa | 956 | |
252b5132 RH |
957 | /* If there is a second reloc section associated with this section, |
958 | as can happen on Irix 6, this field points to the header. */ | |
959 | Elf_Internal_Shdr *rel_hdr2; | |
0c715baa | 960 | |
23bc299b MM |
961 | /* The number of relocations currently assigned to REL_HDR. */ |
962 | unsigned int rel_count; | |
0c715baa | 963 | |
23bc299b MM |
964 | /* The number of relocations currently assigned to REL_HDR2. */ |
965 | unsigned int rel_count2; | |
0c715baa | 966 | |
252b5132 RH |
967 | /* The ELF section number of this section. Only used for an output |
968 | file. */ | |
969 | int this_idx; | |
0c715baa | 970 | |
23bc299b MM |
971 | /* The ELF section number of the reloc section indicated by |
972 | REL_HDR if any. Only used for an output file. */ | |
252b5132 | 973 | int rel_idx; |
0c715baa | 974 | |
23bc299b MM |
975 | /* The ELF section number of the reloc section indicated by |
976 | REL_HDR2 if any. Only used for an output file. */ | |
977 | int rel_idx2; | |
0c715baa | 978 | |
f0abc2a1 AM |
979 | /* Used by the backend linker when generating a shared library to |
980 | record the dynamic symbol index for a section symbol | |
981 | corresponding to this section. A value of 0 means that there is | |
982 | no dynamic symbol for this section. */ | |
983 | int dynindx; | |
984 | ||
252b5132 RH |
985 | /* Used by the backend linker to store the symbol hash table entries |
986 | associated with relocs against global symbols. */ | |
987 | struct elf_link_hash_entry **rel_hashes; | |
0c715baa | 988 | |
252b5132 RH |
989 | /* A pointer to the swapped relocs. If the section uses REL relocs, |
990 | rather than RELA, all the r_addend fields will be zero. This | |
991 | pointer may be NULL. It is used by the backend linker. */ | |
992 | Elf_Internal_Rela *relocs; | |
0c715baa | 993 | |
f0abc2a1 AM |
994 | /* A pointer to a linked list tracking dynamic relocs copied for |
995 | local symbols. */ | |
c39a58e6 | 996 | void *local_dynrel; |
0c715baa | 997 | |
f0abc2a1 AM |
998 | /* A pointer to the bfd section used for dynamic relocs. */ |
999 | asection *sreloc; | |
0c715baa | 1000 | |
1126897b AM |
1001 | union { |
1002 | /* Group name, if this section is a member of a group. */ | |
1003 | const char *name; | |
1004 | ||
1005 | /* Group signature sym, if this is the SHT_GROUP section. */ | |
1006 | struct symbol_cache_entry *id; | |
1007 | } group; | |
dbb410c3 AM |
1008 | |
1009 | /* A linked list of sections in the group. Circular when used by | |
1010 | the linker. */ | |
1011 | asection *next_in_group; | |
1012 | ||
f0abc2a1 | 1013 | /* A pointer used for various section optimizations. */ |
c39a58e6 | 1014 | void *sec_info; |
252b5132 RH |
1015 | }; |
1016 | ||
1017 | #define elf_section_data(sec) ((struct bfd_elf_section_data*)sec->used_by_bfd) | |
2f89ff8d L |
1018 | #define elf_section_type(sec) (elf_section_data(sec)->this_hdr.sh_type) |
1019 | #define elf_section_flags(sec) (elf_section_data(sec)->this_hdr.sh_flags) | |
1126897b AM |
1020 | #define elf_group_name(sec) (elf_section_data(sec)->group.name) |
1021 | #define elf_group_id(sec) (elf_section_data(sec)->group.id) | |
945906ff | 1022 | #define elf_next_in_group(sec) (elf_section_data(sec)->next_in_group) |
252b5132 | 1023 | |
b34976b6 | 1024 | /* Return TRUE if section has been discarded. */ |
68bfbfcc AM |
1025 | #define elf_discarded_section(sec) \ |
1026 | (!bfd_is_abs_section (sec) \ | |
1027 | && bfd_is_abs_section ((sec)->output_section) \ | |
1028 | && sec->sec_info_type != ELF_INFO_TYPE_MERGE \ | |
1029 | && sec->sec_info_type != ELF_INFO_TYPE_JUST_SYMS) | |
ed4de5e2 | 1030 | |
252b5132 | 1031 | #define get_elf_backend_data(abfd) \ |
9c5bfbb7 | 1032 | ((const struct elf_backend_data *) (abfd)->xvec->backend_data) |
252b5132 | 1033 | |
45d6a902 AM |
1034 | /* This struct is used to pass information to routines called via |
1035 | elf_link_hash_traverse which must return failure. */ | |
1036 | ||
1037 | struct elf_info_failed | |
1038 | { | |
1039 | bfd_boolean failed; | |
1040 | struct bfd_link_info *info; | |
1041 | struct bfd_elf_version_tree *verdefs; | |
1042 | }; | |
1043 | ||
1044 | /* This structure is used to pass information to | |
1045 | _bfd_elf_link_assign_sym_version. */ | |
1046 | ||
1047 | struct elf_assign_sym_version_info | |
1048 | { | |
1049 | /* Output BFD. */ | |
1050 | bfd *output_bfd; | |
1051 | /* General link information. */ | |
1052 | struct bfd_link_info *info; | |
1053 | /* Version tree. */ | |
1054 | struct bfd_elf_version_tree *verdefs; | |
1055 | /* Whether we had a failure. */ | |
1056 | bfd_boolean failed; | |
1057 | }; | |
1058 | ||
1059 | /* This structure is used to pass information to | |
1060 | _bfd_elf_link_find_version_dependencies. */ | |
1061 | ||
1062 | struct elf_find_verdep_info | |
1063 | { | |
1064 | /* Output BFD. */ | |
1065 | bfd *output_bfd; | |
1066 | /* General link information. */ | |
1067 | struct bfd_link_info *info; | |
1068 | /* The number of dependencies. */ | |
1069 | unsigned int vers; | |
1070 | /* Whether we had a failure. */ | |
1071 | bfd_boolean failed; | |
1072 | }; | |
1073 | ||
252b5132 RH |
1074 | /* Some private data is stashed away for future use using the tdata pointer |
1075 | in the bfd structure. */ | |
1076 | ||
1077 | struct elf_obj_tdata | |
1078 | { | |
1079 | Elf_Internal_Ehdr elf_header[1]; /* Actual data, but ref like ptr */ | |
1080 | Elf_Internal_Shdr **elf_sect_ptr; | |
1081 | Elf_Internal_Phdr *phdr; | |
1082 | struct elf_segment_map *segment_map; | |
2b0f7ef9 | 1083 | struct elf_strtab_hash *strtab_ptr; |
252b5132 RH |
1084 | int num_locals; |
1085 | int num_globals; | |
9ad5cbcf | 1086 | unsigned int num_elf_sections; /* elf_sect_ptr size */ |
4e89ac30 | 1087 | int num_section_syms; |
252b5132 RH |
1088 | asymbol **section_syms; /* STT_SECTION symbols for each section */ |
1089 | Elf_Internal_Shdr symtab_hdr; | |
1090 | Elf_Internal_Shdr shstrtab_hdr; | |
1091 | Elf_Internal_Shdr strtab_hdr; | |
1092 | Elf_Internal_Shdr dynsymtab_hdr; | |
1093 | Elf_Internal_Shdr dynstrtab_hdr; | |
1094 | Elf_Internal_Shdr dynversym_hdr; | |
1095 | Elf_Internal_Shdr dynverref_hdr; | |
1096 | Elf_Internal_Shdr dynverdef_hdr; | |
9ad5cbcf | 1097 | Elf_Internal_Shdr symtab_shndx_hdr; |
252b5132 RH |
1098 | unsigned int symtab_section, shstrtab_section; |
1099 | unsigned int strtab_section, dynsymtab_section; | |
9ad5cbcf | 1100 | unsigned int symtab_shndx_section; |
252b5132 RH |
1101 | unsigned int dynversym_section, dynverdef_section, dynverref_section; |
1102 | file_ptr next_file_pos; | |
dbb410c3 AM |
1103 | bfd_vma gp; /* The gp value */ |
1104 | unsigned int gp_size; /* The gp size */ | |
1105 | ||
1106 | Elf_Internal_Shdr **group_sect_ptr; | |
1107 | int num_group; | |
252b5132 | 1108 | |
3e932841 | 1109 | /* Information grabbed from an elf core file. */ |
252b5132 RH |
1110 | int core_signal; |
1111 | int core_pid; | |
1112 | int core_lwpid; | |
1113 | char* core_program; | |
1114 | char* core_command; | |
1115 | ||
b34976b6 | 1116 | /* This is set to TRUE if the object was created by the backend |
252b5132 | 1117 | linker. */ |
b34976b6 | 1118 | bfd_boolean linker; |
252b5132 RH |
1119 | |
1120 | /* A mapping from external symbols to entries in the linker hash | |
1121 | table, used when linking. This is indexed by the symbol index | |
1122 | minus the sh_info field of the symbol table header. */ | |
1123 | struct elf_link_hash_entry **sym_hashes; | |
1124 | ||
5cab59f6 AM |
1125 | /* Track usage and final offsets of GOT entries for local symbols. |
1126 | This array is indexed by symbol index. Elements are used | |
1127 | identically to "got" in struct elf_link_hash_entry. */ | |
252b5132 RH |
1128 | union |
1129 | { | |
1130 | bfd_signed_vma *refcounts; | |
1131 | bfd_vma *offsets; | |
5cab59f6 | 1132 | struct got_entry **ents; |
252b5132 RH |
1133 | } local_got; |
1134 | ||
252b5132 RH |
1135 | /* The linker ELF emulation code needs to let the backend ELF linker |
1136 | know what filename should be used for a dynamic object if the | |
1137 | dynamic object is found using a search. The emulation code then | |
1138 | sometimes needs to know what name was actually used. Until the | |
1139 | file has been added to the linker symbol table, this field holds | |
1140 | the name the linker wants. After it has been added, it holds the | |
1141 | name actually used, which will be the DT_SONAME entry if there is | |
1142 | one. */ | |
1143 | const char *dt_name; | |
1144 | ||
74816898 L |
1145 | /* When a reference in a regular object is resolved by a shared |
1146 | object is loaded into via the DT_NEEDED entries by the linker | |
1147 | ELF emulation code, we need to add the shared object to the | |
1148 | DT_NEEDED list of the resulting binary to indicate the dependency | |
1149 | as if the -l option is passed to the linker. This field holds the | |
3e932841 | 1150 | name of the loaded shared object. */ |
74816898 L |
1151 | const char *dt_soname; |
1152 | ||
252b5132 RH |
1153 | /* Irix 5 often screws up the symbol table, sorting local symbols |
1154 | after global symbols. This flag is set if the symbol table in | |
1155 | this BFD appears to be screwed up. If it is, we ignore the | |
1156 | sh_info field in the symbol table header, and always read all the | |
1157 | symbols. */ | |
b34976b6 | 1158 | bfd_boolean bad_symtab; |
252b5132 RH |
1159 | |
1160 | /* Records the result of `get_program_header_size'. */ | |
1161 | bfd_size_type program_header_size; | |
1162 | ||
1163 | /* Used by find_nearest_line entry point. */ | |
c39a58e6 | 1164 | void *line_info; |
252b5132 RH |
1165 | |
1166 | /* Used by MIPS ELF find_nearest_line entry point. The structure | |
1167 | could be included directly in this one, but there's no point to | |
1168 | wasting the memory just for the infrequently called | |
1169 | find_nearest_line. */ | |
1170 | struct mips_elf_find_line *find_line_info; | |
1171 | ||
3e932841 | 1172 | /* A place to stash dwarf1 info for this bfd. */ |
252b5132 RH |
1173 | struct dwarf1_debug *dwarf1_find_line_info; |
1174 | ||
3e932841 | 1175 | /* A place to stash dwarf2 info for this bfd. */ |
c39a58e6 | 1176 | void *dwarf2_find_line_info; |
252b5132 RH |
1177 | |
1178 | /* An array of stub sections indexed by symbol number, used by the | |
1179 | MIPS ELF linker. FIXME: We should figure out some way to only | |
1180 | include this field for a MIPS ELF target. */ | |
1181 | asection **local_stubs; | |
1182 | ||
65765700 JJ |
1183 | /* Used to determine if PT_GNU_EH_FRAME segment header should be |
1184 | created. */ | |
126495ed AM |
1185 | asection *eh_frame_hdr; |
1186 | ||
1187 | /* Used to determine if the e_flags field has been initialized */ | |
b34976b6 | 1188 | bfd_boolean flags_init; |
65765700 | 1189 | |
252b5132 RH |
1190 | /* Number of symbol version definitions we are about to emit. */ |
1191 | unsigned int cverdefs; | |
1192 | ||
1193 | /* Number of symbol version references we are about to emit. */ | |
1194 | unsigned int cverrefs; | |
1195 | ||
9ee5e499 JJ |
1196 | /* Segment flags for the PT_GNU_STACK segment. */ |
1197 | unsigned int stack_flags; | |
1198 | ||
252b5132 RH |
1199 | /* Symbol version definitions in external objects. */ |
1200 | Elf_Internal_Verdef *verdef; | |
1201 | ||
1202 | /* Symbol version references to external objects. */ | |
1203 | Elf_Internal_Verneed *verref; | |
1204 | ||
b305ef96 UC |
1205 | /* The Irix 5 support uses two virtual sections, which represent |
1206 | text/data symbols defined in dynamic objects. */ | |
1207 | asymbol *elf_data_symbol; | |
1208 | asymbol *elf_text_symbol; | |
1209 | asection *elf_data_section; | |
1210 | asection *elf_text_section; | |
252b5132 RH |
1211 | }; |
1212 | ||
1213 | #define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data) | |
1214 | #define elf_elfheader(bfd) (elf_tdata(bfd) -> elf_header) | |
1215 | #define elf_elfsections(bfd) (elf_tdata(bfd) -> elf_sect_ptr) | |
9ad5cbcf | 1216 | #define elf_numsections(bfd) (elf_tdata(bfd) -> num_elf_sections) |
252b5132 RH |
1217 | #define elf_shstrtab(bfd) (elf_tdata(bfd) -> strtab_ptr) |
1218 | #define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section) | |
9ad5cbcf | 1219 | #define elf_symtab_shndx(bfd) (elf_tdata(bfd) -> symtab_shndx_section) |
252b5132 RH |
1220 | #define elf_dynsymtab(bfd) (elf_tdata(bfd) -> dynsymtab_section) |
1221 | #define elf_dynversym(bfd) (elf_tdata(bfd) -> dynversym_section) | |
1222 | #define elf_dynverdef(bfd) (elf_tdata(bfd) -> dynverdef_section) | |
1223 | #define elf_dynverref(bfd) (elf_tdata(bfd) -> dynverref_section) | |
1224 | #define elf_num_locals(bfd) (elf_tdata(bfd) -> num_locals) | |
1225 | #define elf_num_globals(bfd) (elf_tdata(bfd) -> num_globals) | |
1226 | #define elf_section_syms(bfd) (elf_tdata(bfd) -> section_syms) | |
4e89ac30 | 1227 | #define elf_num_section_syms(bfd) (elf_tdata(bfd) -> num_section_syms) |
252b5132 RH |
1228 | #define core_prpsinfo(bfd) (elf_tdata(bfd) -> prpsinfo) |
1229 | #define core_prstatus(bfd) (elf_tdata(bfd) -> prstatus) | |
1230 | #define elf_gp(bfd) (elf_tdata(bfd) -> gp) | |
1231 | #define elf_gp_size(bfd) (elf_tdata(bfd) -> gp_size) | |
1232 | #define elf_sym_hashes(bfd) (elf_tdata(bfd) -> sym_hashes) | |
1233 | #define elf_local_got_refcounts(bfd) (elf_tdata(bfd) -> local_got.refcounts) | |
1234 | #define elf_local_got_offsets(bfd) (elf_tdata(bfd) -> local_got.offsets) | |
5cab59f6 | 1235 | #define elf_local_got_ents(bfd) (elf_tdata(bfd) -> local_got.ents) |
252b5132 | 1236 | #define elf_dt_name(bfd) (elf_tdata(bfd) -> dt_name) |
74816898 | 1237 | #define elf_dt_soname(bfd) (elf_tdata(bfd) -> dt_soname) |
252b5132 RH |
1238 | #define elf_bad_symtab(bfd) (elf_tdata(bfd) -> bad_symtab) |
1239 | #define elf_flags_init(bfd) (elf_tdata(bfd) -> flags_init) | |
252b5132 RH |
1240 | \f |
1241 | extern void _bfd_elf_swap_verdef_in | |
c39a58e6 | 1242 | (bfd *, const Elf_External_Verdef *, Elf_Internal_Verdef *); |
252b5132 | 1243 | extern void _bfd_elf_swap_verdef_out |
c39a58e6 | 1244 | (bfd *, const Elf_Internal_Verdef *, Elf_External_Verdef *); |
252b5132 | 1245 | extern void _bfd_elf_swap_verdaux_in |
c39a58e6 | 1246 | (bfd *, const Elf_External_Verdaux *, Elf_Internal_Verdaux *); |
252b5132 | 1247 | extern void _bfd_elf_swap_verdaux_out |
c39a58e6 | 1248 | (bfd *, const Elf_Internal_Verdaux *, Elf_External_Verdaux *); |
252b5132 | 1249 | extern void _bfd_elf_swap_verneed_in |
c39a58e6 | 1250 | (bfd *, const Elf_External_Verneed *, Elf_Internal_Verneed *); |
252b5132 | 1251 | extern void _bfd_elf_swap_verneed_out |
c39a58e6 | 1252 | (bfd *, const Elf_Internal_Verneed *, Elf_External_Verneed *); |
252b5132 | 1253 | extern void _bfd_elf_swap_vernaux_in |
c39a58e6 | 1254 | (bfd *, const Elf_External_Vernaux *, Elf_Internal_Vernaux *); |
252b5132 | 1255 | extern void _bfd_elf_swap_vernaux_out |
c39a58e6 | 1256 | (bfd *, const Elf_Internal_Vernaux *, Elf_External_Vernaux *); |
252b5132 | 1257 | extern void _bfd_elf_swap_versym_in |
c39a58e6 | 1258 | (bfd *, const Elf_External_Versym *, Elf_Internal_Versym *); |
252b5132 | 1259 | extern void _bfd_elf_swap_versym_out |
c39a58e6 | 1260 | (bfd *, const Elf_Internal_Versym *, Elf_External_Versym *); |
252b5132 | 1261 | |
dc810e39 | 1262 | extern int _bfd_elf_section_from_bfd_section |
c39a58e6 | 1263 | (bfd *, asection *); |
252b5132 | 1264 | extern char *bfd_elf_string_from_elf_section |
c39a58e6 | 1265 | (bfd *, unsigned, unsigned); |
dc810e39 | 1266 | extern char *bfd_elf_get_str_section |
c39a58e6 | 1267 | (bfd *, unsigned); |
6cdc0ccc | 1268 | extern Elf_Internal_Sym *bfd_elf_get_elf_syms |
c39a58e6 AM |
1269 | (bfd *, Elf_Internal_Shdr *, size_t, size_t, Elf_Internal_Sym *, void *, |
1270 | Elf_External_Sym_Shndx *); | |
5cab59f6 | 1271 | extern const char *bfd_elf_local_sym_name |
c39a58e6 | 1272 | (bfd *, Elf_Internal_Sym *); |
252b5132 | 1273 | |
b34976b6 | 1274 | extern bfd_boolean _bfd_elf_copy_private_bfd_data |
c39a58e6 | 1275 | (bfd *, bfd *); |
b34976b6 | 1276 | extern bfd_boolean _bfd_elf_print_private_bfd_data |
c39a58e6 | 1277 | (bfd *, void *); |
dc810e39 | 1278 | extern void bfd_elf_print_symbol |
c39a58e6 | 1279 | (bfd *, void *, asymbol *, bfd_print_symbol_type); |
dc810e39 AM |
1280 | |
1281 | #define elf_string_from_elf_strtab(abfd, strindex) \ | |
c39a58e6 AM |
1282 | bfd_elf_string_from_elf_section (abfd, elf_elfheader(abfd)->e_shstrndx, \ |
1283 | strindex) | |
252b5132 RH |
1284 | |
1285 | #define bfd_elf32_print_symbol bfd_elf_print_symbol | |
1286 | #define bfd_elf64_print_symbol bfd_elf_print_symbol | |
1287 | ||
dc810e39 | 1288 | extern void _bfd_elf_sprintf_vma |
c39a58e6 | 1289 | (bfd *, char *, bfd_vma); |
dc810e39 | 1290 | extern void _bfd_elf_fprintf_vma |
c39a58e6 | 1291 | (bfd *, void *, bfd_vma); |
d69bb69b | 1292 | |
dc810e39 | 1293 | extern enum elf_reloc_type_class _bfd_elf_reloc_type_class |
c39a58e6 | 1294 | (const Elf_Internal_Rela *); |
f8df10f4 | 1295 | extern bfd_vma _bfd_elf_rela_local_sym |
c39a58e6 | 1296 | (bfd *, Elf_Internal_Sym *, asection *, Elf_Internal_Rela *); |
c629eae0 | 1297 | extern bfd_vma _bfd_elf_rel_local_sym |
c39a58e6 | 1298 | (bfd *, Elf_Internal_Sym *, asection **, bfd_vma); |
c629eae0 | 1299 | extern bfd_vma _bfd_elf_section_offset |
c39a58e6 | 1300 | (bfd *, struct bfd_link_info *, asection *, bfd_vma); |
db6751f2 | 1301 | |
dc810e39 | 1302 | extern unsigned long bfd_elf_hash |
c39a58e6 | 1303 | (const char *); |
252b5132 | 1304 | |
dc810e39 | 1305 | extern bfd_reloc_status_type bfd_elf_generic_reloc |
c39a58e6 | 1306 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
b34976b6 | 1307 | extern bfd_boolean bfd_elf_mkobject |
c39a58e6 | 1308 | (bfd *); |
b34976b6 | 1309 | extern bfd_boolean bfd_elf_mkcorefile |
c39a58e6 | 1310 | (bfd *); |
dc810e39 | 1311 | extern Elf_Internal_Shdr *bfd_elf_find_section |
c39a58e6 | 1312 | (bfd *, char *); |
b34976b6 | 1313 | extern bfd_boolean _bfd_elf_make_section_from_shdr |
c39a58e6 | 1314 | (bfd *, Elf_Internal_Shdr *, const char *); |
b34976b6 | 1315 | extern bfd_boolean _bfd_elf_make_section_from_phdr |
c39a58e6 | 1316 | (bfd *, Elf_Internal_Phdr *, int, const char *); |
252b5132 | 1317 | extern struct bfd_hash_entry *_bfd_elf_link_hash_newfunc |
c39a58e6 | 1318 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); |
252b5132 | 1319 | extern struct bfd_link_hash_table *_bfd_elf_link_hash_table_create |
c39a58e6 | 1320 | (bfd *); |
c61b8717 | 1321 | extern void _bfd_elf_link_hash_copy_indirect |
9c5bfbb7 | 1322 | (const struct elf_backend_data *, struct elf_link_hash_entry *, |
c39a58e6 | 1323 | struct elf_link_hash_entry *); |
c61b8717 | 1324 | extern void _bfd_elf_link_hash_hide_symbol |
c39a58e6 | 1325 | (struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean); |
b34976b6 | 1326 | extern bfd_boolean _bfd_elf_link_hash_table_init |
c39a58e6 AM |
1327 | (struct elf_link_hash_table *, bfd *, |
1328 | struct bfd_hash_entry *(*) | |
1329 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
b34976b6 | 1330 | extern bfd_boolean _bfd_elf_slurp_version_tables |
c39a58e6 | 1331 | (bfd *); |
b34976b6 | 1332 | extern bfd_boolean _bfd_elf_merge_sections |
c39a58e6 | 1333 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1334 | extern bfd_boolean bfd_elf_discard_group |
c39a58e6 | 1335 | (bfd *, struct sec *); |
1126897b | 1336 | extern void bfd_elf_set_group_contents |
c39a58e6 | 1337 | (bfd *, asection *, void *); |
2d653fc7 | 1338 | extern void _bfd_elf_link_just_syms |
c39a58e6 | 1339 | (asection *, struct bfd_link_info *); |
b34976b6 | 1340 | extern bfd_boolean _bfd_elf_copy_private_symbol_data |
c39a58e6 | 1341 | (bfd *, asymbol *, bfd *, asymbol *); |
b34976b6 | 1342 | extern bfd_boolean _bfd_elf_copy_private_section_data |
c39a58e6 | 1343 | (bfd *, asection *, bfd *, asection *); |
b34976b6 | 1344 | extern bfd_boolean _bfd_elf_write_object_contents |
c39a58e6 | 1345 | (bfd *); |
b34976b6 | 1346 | extern bfd_boolean _bfd_elf_write_corefile_contents |
c39a58e6 | 1347 | (bfd *); |
b34976b6 | 1348 | extern bfd_boolean _bfd_elf_set_section_contents |
c39a58e6 | 1349 | (bfd *, sec_ptr, void *, file_ptr, bfd_size_type); |
dc810e39 | 1350 | extern long _bfd_elf_get_symtab_upper_bound |
c39a58e6 | 1351 | (bfd *); |
dc810e39 | 1352 | extern long _bfd_elf_get_symtab |
c39a58e6 | 1353 | (bfd *, asymbol **); |
dc810e39 | 1354 | extern long _bfd_elf_get_dynamic_symtab_upper_bound |
c39a58e6 | 1355 | (bfd *); |
dc810e39 | 1356 | extern long _bfd_elf_canonicalize_dynamic_symtab |
c39a58e6 | 1357 | (bfd *, asymbol **); |
dc810e39 | 1358 | extern long _bfd_elf_get_reloc_upper_bound |
c39a58e6 | 1359 | (bfd *, sec_ptr); |
dc810e39 | 1360 | extern long _bfd_elf_canonicalize_reloc |
c39a58e6 | 1361 | (bfd *, sec_ptr, arelent **, asymbol **); |
dc810e39 | 1362 | extern long _bfd_elf_get_dynamic_reloc_upper_bound |
c39a58e6 | 1363 | (bfd *); |
dc810e39 | 1364 | extern long _bfd_elf_canonicalize_dynamic_reloc |
c39a58e6 | 1365 | (bfd *, arelent **, asymbol **); |
dc810e39 | 1366 | extern asymbol *_bfd_elf_make_empty_symbol |
c39a58e6 | 1367 | (bfd *); |
dc810e39 | 1368 | extern void _bfd_elf_get_symbol_info |
c39a58e6 | 1369 | (bfd *, asymbol *, symbol_info *); |
b34976b6 | 1370 | extern bfd_boolean _bfd_elf_is_local_label_name |
c39a58e6 | 1371 | (bfd *, const char *); |
dc810e39 | 1372 | extern alent *_bfd_elf_get_lineno |
c39a58e6 | 1373 | (bfd *, asymbol *); |
b34976b6 | 1374 | extern bfd_boolean _bfd_elf_set_arch_mach |
c39a58e6 | 1375 | (bfd *, enum bfd_architecture, unsigned long); |
b34976b6 | 1376 | extern bfd_boolean _bfd_elf_find_nearest_line |
c39a58e6 AM |
1377 | (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **, |
1378 | unsigned int *); | |
252b5132 RH |
1379 | #define _bfd_elf_read_minisymbols _bfd_generic_read_minisymbols |
1380 | #define _bfd_elf_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
dc810e39 | 1381 | extern int _bfd_elf_sizeof_headers |
c39a58e6 | 1382 | (bfd *, bfd_boolean); |
b34976b6 | 1383 | extern bfd_boolean _bfd_elf_new_section_hook |
c39a58e6 | 1384 | (bfd *, asection *); |
b34976b6 | 1385 | extern bfd_boolean _bfd_elf_init_reloc_shdr |
c39a58e6 AM |
1386 | (bfd *, Elf_Internal_Shdr *, asection *, bfd_boolean); |
1387 | extern bfd_boolean _bfd_elf_get_sec_type_attr | |
1388 | (bfd *, const char *, int *, int *); | |
252b5132 RH |
1389 | |
1390 | /* If the target doesn't have reloc handling written yet: */ | |
dc810e39 | 1391 | extern void _bfd_elf_no_info_to_howto |
c39a58e6 | 1392 | (bfd *, arelent *, Elf_Internal_Rela *); |
dc810e39 | 1393 | |
b34976b6 | 1394 | extern bfd_boolean bfd_section_from_shdr |
c39a58e6 | 1395 | (bfd *, unsigned int shindex); |
b34976b6 | 1396 | extern bfd_boolean bfd_section_from_phdr |
c39a58e6 | 1397 | (bfd *, Elf_Internal_Phdr *, int); |
dc810e39 AM |
1398 | |
1399 | extern int _bfd_elf_symbol_from_bfd_symbol | |
c39a58e6 | 1400 | (bfd *, asymbol **); |
dc810e39 | 1401 | |
ec338859 | 1402 | extern asection *bfd_section_from_r_symndx |
c39a58e6 | 1403 | (bfd *, struct sym_sec_cache *, asection *, unsigned long); |
dc810e39 | 1404 | extern asection *bfd_section_from_elf_index |
c39a58e6 | 1405 | (bfd *, unsigned int); |
dc810e39 | 1406 | extern struct bfd_strtab_hash *_bfd_elf_stringtab_init |
c39a58e6 | 1407 | (void); |
2b0f7ef9 JJ |
1408 | |
1409 | extern struct elf_strtab_hash * _bfd_elf_strtab_init | |
c39a58e6 | 1410 | (void); |
2b0f7ef9 | 1411 | extern void _bfd_elf_strtab_free |
c39a58e6 | 1412 | (struct elf_strtab_hash *); |
2b0f7ef9 | 1413 | extern bfd_size_type _bfd_elf_strtab_add |
c39a58e6 | 1414 | (struct elf_strtab_hash *, const char *, bfd_boolean); |
2b0f7ef9 | 1415 | extern void _bfd_elf_strtab_addref |
c39a58e6 | 1416 | (struct elf_strtab_hash *, bfd_size_type); |
2b0f7ef9 | 1417 | extern void _bfd_elf_strtab_delref |
c39a58e6 | 1418 | (struct elf_strtab_hash *, bfd_size_type); |
2b0f7ef9 | 1419 | extern void _bfd_elf_strtab_clear_all_refs |
c39a58e6 | 1420 | (struct elf_strtab_hash *); |
2b0f7ef9 | 1421 | extern bfd_size_type _bfd_elf_strtab_size |
c39a58e6 | 1422 | (struct elf_strtab_hash *); |
2b0f7ef9 | 1423 | extern bfd_size_type _bfd_elf_strtab_offset |
c39a58e6 | 1424 | (struct elf_strtab_hash *, bfd_size_type); |
b34976b6 | 1425 | extern bfd_boolean _bfd_elf_strtab_emit |
c39a58e6 | 1426 | (bfd *, struct elf_strtab_hash *); |
2b0f7ef9 | 1427 | extern void _bfd_elf_strtab_finalize |
c39a58e6 | 1428 | (struct elf_strtab_hash *); |
2b0f7ef9 | 1429 | |
b34976b6 | 1430 | extern bfd_boolean _bfd_elf_discard_section_eh_frame |
c39a58e6 AM |
1431 | (bfd *, struct bfd_link_info *, asection *, |
1432 | bfd_boolean (*) (bfd_vma, void *), struct elf_reloc_cookie *); | |
b34976b6 | 1433 | extern bfd_boolean _bfd_elf_discard_section_eh_frame_hdr |
c39a58e6 | 1434 | (bfd *, struct bfd_link_info *); |
65765700 | 1435 | extern bfd_vma _bfd_elf_eh_frame_section_offset |
c39a58e6 | 1436 | (bfd *, asection *, bfd_vma); |
b34976b6 | 1437 | extern bfd_boolean _bfd_elf_write_section_eh_frame |
c39a58e6 | 1438 | (bfd *, struct bfd_link_info *, asection *, bfd_byte *); |
b34976b6 | 1439 | extern bfd_boolean _bfd_elf_write_section_eh_frame_hdr |
c39a58e6 | 1440 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1441 | extern bfd_boolean _bfd_elf_maybe_strip_eh_frame_hdr |
c39a58e6 | 1442 | (struct bfd_link_info *); |
65765700 | 1443 | |
45d6a902 | 1444 | extern bfd_boolean _bfd_elf_merge_symbol |
c39a58e6 AM |
1445 | (bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *, |
1446 | asection **, bfd_vma *, struct elf_link_hash_entry **, bfd_boolean *, | |
1447 | bfd_boolean *, bfd_boolean *, bfd_boolean *, bfd_boolean); | |
45d6a902 AM |
1448 | |
1449 | extern bfd_boolean _bfd_elf_add_default_symbol | |
c39a58e6 AM |
1450 | (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, |
1451 | const char *, Elf_Internal_Sym *, asection **, bfd_vma *, | |
1452 | bfd_boolean *, bfd_boolean, bfd_boolean); | |
45d6a902 AM |
1453 | |
1454 | extern bfd_boolean _bfd_elf_export_symbol | |
c39a58e6 | 1455 | (struct elf_link_hash_entry *, void *); |
45d6a902 AM |
1456 | |
1457 | extern bfd_boolean _bfd_elf_link_find_version_dependencies | |
c39a58e6 | 1458 | (struct elf_link_hash_entry *, void *); |
45d6a902 AM |
1459 | |
1460 | extern bfd_boolean _bfd_elf_link_assign_sym_version | |
c39a58e6 | 1461 | (struct elf_link_hash_entry *, void *); |
45d6a902 | 1462 | |
b34976b6 | 1463 | extern bfd_boolean _bfd_elf_link_record_dynamic_symbol |
c39a58e6 | 1464 | (struct bfd_link_info *, struct elf_link_hash_entry *); |
dc810e39 | 1465 | extern long _bfd_elf_link_lookup_local_dynindx |
c39a58e6 | 1466 | (struct bfd_link_info *, bfd *, long); |
b34976b6 | 1467 | extern bfd_boolean _bfd_elf_compute_section_file_positions |
c39a58e6 | 1468 | (bfd *, struct bfd_link_info *); |
dc810e39 | 1469 | extern void _bfd_elf_assign_file_positions_for_relocs |
c39a58e6 | 1470 | (bfd *); |
dc810e39 | 1471 | extern file_ptr _bfd_elf_assign_file_position_for_section |
c39a58e6 | 1472 | (Elf_Internal_Shdr *, file_ptr, bfd_boolean); |
dc810e39 | 1473 | |
b34976b6 | 1474 | extern bfd_boolean _bfd_elf_validate_reloc |
c39a58e6 | 1475 | (bfd *, arelent *); |
dc810e39 | 1476 | |
45d6a902 | 1477 | extern bfd_boolean _bfd_elf_link_create_dynamic_sections |
c39a58e6 | 1478 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1479 | extern bfd_boolean _bfd_elf_create_dynamic_sections |
c39a58e6 | 1480 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1481 | extern bfd_boolean _bfd_elf_create_got_section |
c39a58e6 | 1482 | (bfd *, struct bfd_link_info *); |
dc810e39 | 1483 | extern unsigned long _bfd_elf_link_renumber_dynsyms |
c39a58e6 | 1484 | (bfd *, struct bfd_link_info *); |
dc810e39 | 1485 | |
b34976b6 | 1486 | extern bfd_boolean _bfd_elfcore_make_pseudosection |
c39a58e6 | 1487 | (bfd *, char *, size_t, ufile_ptr); |
dc810e39 | 1488 | extern char *_bfd_elfcore_strndup |
c39a58e6 | 1489 | (bfd *, char *, size_t); |
dc810e39 | 1490 | |
45d6a902 | 1491 | extern Elf_Internal_Rela *_bfd_elf_link_read_relocs |
c39a58e6 | 1492 | (bfd *, asection *, void *, Elf_Internal_Rela *, bfd_boolean); |
45d6a902 AM |
1493 | |
1494 | extern bfd_boolean _bfd_elf_link_size_reloc_section | |
c39a58e6 | 1495 | (bfd *, Elf_Internal_Shdr *, asection *); |
45d6a902 AM |
1496 | |
1497 | extern bfd_boolean _bfd_elf_link_output_relocs | |
c39a58e6 | 1498 | (bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *); |
45d6a902 AM |
1499 | |
1500 | extern bfd_boolean _bfd_elf_fix_symbol_flags | |
c39a58e6 | 1501 | (struct elf_link_hash_entry *, struct elf_info_failed *); |
45d6a902 AM |
1502 | |
1503 | extern bfd_boolean _bfd_elf_adjust_dynamic_symbol | |
c39a58e6 | 1504 | (struct elf_link_hash_entry *, void *); |
45d6a902 AM |
1505 | |
1506 | extern bfd_boolean _bfd_elf_link_sec_merge_syms | |
c39a58e6 | 1507 | (struct elf_link_hash_entry *, void *); |
45d6a902 | 1508 | |
986a241f | 1509 | extern bfd_boolean _bfd_elf_dynamic_symbol_p |
c39a58e6 | 1510 | (struct elf_link_hash_entry *, struct bfd_link_info *, bfd_boolean); |
f6c52c13 AM |
1511 | |
1512 | extern bfd_boolean _bfd_elf_symbol_refs_local_p | |
c39a58e6 | 1513 | (struct elf_link_hash_entry *, struct bfd_link_info *, bfd_boolean); |
986a241f | 1514 | |
dc810e39 | 1515 | extern const bfd_target *bfd_elf32_object_p |
c39a58e6 | 1516 | (bfd *); |
dc810e39 | 1517 | extern const bfd_target *bfd_elf32_core_file_p |
c39a58e6 | 1518 | (bfd *); |
dc810e39 | 1519 | extern char *bfd_elf32_core_file_failing_command |
c39a58e6 | 1520 | (bfd *); |
dc810e39 | 1521 | extern int bfd_elf32_core_file_failing_signal |
c39a58e6 | 1522 | (bfd *); |
b34976b6 | 1523 | extern bfd_boolean bfd_elf32_core_file_matches_executable_p |
c39a58e6 | 1524 | (bfd *, bfd *); |
252b5132 | 1525 | |
b34976b6 | 1526 | extern bfd_boolean bfd_elf32_bfd_link_add_symbols |
c39a58e6 | 1527 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1528 | extern bfd_boolean bfd_elf32_bfd_final_link |
c39a58e6 | 1529 | (bfd *, struct bfd_link_info *); |
252b5132 RH |
1530 | |
1531 | extern void bfd_elf32_swap_symbol_in | |
c39a58e6 | 1532 | (bfd *, const void *, const void *, Elf_Internal_Sym *); |
252b5132 | 1533 | extern void bfd_elf32_swap_symbol_out |
c39a58e6 | 1534 | (bfd *, const Elf_Internal_Sym *, void *, void *); |
252b5132 | 1535 | extern void bfd_elf32_swap_reloc_in |
c39a58e6 | 1536 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
252b5132 | 1537 | extern void bfd_elf32_swap_reloc_out |
c39a58e6 | 1538 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
252b5132 | 1539 | extern void bfd_elf32_swap_reloca_in |
c39a58e6 | 1540 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
252b5132 | 1541 | extern void bfd_elf32_swap_reloca_out |
c39a58e6 | 1542 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
252b5132 | 1543 | extern void bfd_elf32_swap_phdr_in |
c39a58e6 | 1544 | (bfd *, const Elf32_External_Phdr *, Elf_Internal_Phdr *); |
252b5132 | 1545 | extern void bfd_elf32_swap_phdr_out |
c39a58e6 | 1546 | (bfd *, const Elf_Internal_Phdr *, Elf32_External_Phdr *); |
252b5132 | 1547 | extern void bfd_elf32_swap_dyn_in |
c39a58e6 | 1548 | (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 | 1549 | extern void bfd_elf32_swap_dyn_out |
c39a58e6 | 1550 | (bfd *, const Elf_Internal_Dyn *, void *); |
252b5132 | 1551 | extern long bfd_elf32_slurp_symbol_table |
c39a58e6 | 1552 | (bfd *, asymbol **, bfd_boolean); |
b34976b6 | 1553 | extern bfd_boolean bfd_elf32_write_shdrs_and_ehdr |
c39a58e6 | 1554 | (bfd *); |
252b5132 | 1555 | extern int bfd_elf32_write_out_phdrs |
c39a58e6 | 1556 | (bfd *, const Elf_Internal_Phdr *, unsigned int); |
b9f66672 | 1557 | extern void bfd_elf32_write_relocs |
c39a58e6 | 1558 | (bfd *, asection *, void *); |
b34976b6 | 1559 | extern bfd_boolean bfd_elf32_slurp_reloc_table |
c39a58e6 | 1560 | (bfd *, asection *, asymbol **, bfd_boolean); |
b34976b6 | 1561 | extern bfd_boolean bfd_elf32_add_dynamic_entry |
c39a58e6 | 1562 | (struct bfd_link_info *, bfd_vma, bfd_vma); |
252b5132 | 1563 | |
dc810e39 | 1564 | extern const bfd_target *bfd_elf64_object_p |
c39a58e6 | 1565 | (bfd *); |
dc810e39 | 1566 | extern const bfd_target *bfd_elf64_core_file_p |
c39a58e6 | 1567 | (bfd *); |
dc810e39 | 1568 | extern char *bfd_elf64_core_file_failing_command |
c39a58e6 | 1569 | (bfd *); |
dc810e39 | 1570 | extern int bfd_elf64_core_file_failing_signal |
c39a58e6 | 1571 | (bfd *); |
b34976b6 | 1572 | extern bfd_boolean bfd_elf64_core_file_matches_executable_p |
c39a58e6 | 1573 | (bfd *, bfd *); |
b34976b6 | 1574 | extern bfd_boolean bfd_elf64_bfd_link_add_symbols |
c39a58e6 | 1575 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1576 | extern bfd_boolean bfd_elf64_bfd_final_link |
c39a58e6 | 1577 | (bfd *, struct bfd_link_info *); |
252b5132 RH |
1578 | |
1579 | extern void bfd_elf64_swap_symbol_in | |
c39a58e6 | 1580 | (bfd *, const void *, const void *, Elf_Internal_Sym *); |
252b5132 | 1581 | extern void bfd_elf64_swap_symbol_out |
c39a58e6 | 1582 | (bfd *, const Elf_Internal_Sym *, void *, void *); |
252b5132 | 1583 | extern void bfd_elf64_swap_reloc_in |
c39a58e6 | 1584 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
252b5132 | 1585 | extern void bfd_elf64_swap_reloc_out |
c39a58e6 | 1586 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
252b5132 | 1587 | extern void bfd_elf64_swap_reloca_in |
c39a58e6 | 1588 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
252b5132 | 1589 | extern void bfd_elf64_swap_reloca_out |
c39a58e6 | 1590 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
252b5132 | 1591 | extern void bfd_elf64_swap_phdr_in |
c39a58e6 | 1592 | (bfd *, const Elf64_External_Phdr *, Elf_Internal_Phdr *); |
252b5132 | 1593 | extern void bfd_elf64_swap_phdr_out |
c39a58e6 | 1594 | (bfd *, const Elf_Internal_Phdr *, Elf64_External_Phdr *); |
252b5132 | 1595 | extern void bfd_elf64_swap_dyn_in |
c39a58e6 | 1596 | (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 | 1597 | extern void bfd_elf64_swap_dyn_out |
c39a58e6 | 1598 | (bfd *, const Elf_Internal_Dyn *, void *); |
252b5132 | 1599 | extern long bfd_elf64_slurp_symbol_table |
c39a58e6 | 1600 | (bfd *, asymbol **, bfd_boolean); |
b34976b6 | 1601 | extern bfd_boolean bfd_elf64_write_shdrs_and_ehdr |
c39a58e6 | 1602 | (bfd *); |
252b5132 | 1603 | extern int bfd_elf64_write_out_phdrs |
c39a58e6 | 1604 | (bfd *, const Elf_Internal_Phdr *, unsigned int); |
b9f66672 | 1605 | extern void bfd_elf64_write_relocs |
c39a58e6 | 1606 | (bfd *, asection *, void *); |
b34976b6 | 1607 | extern bfd_boolean bfd_elf64_slurp_reloc_table |
c39a58e6 | 1608 | (bfd *, asection *, asymbol **, bfd_boolean); |
b34976b6 | 1609 | extern bfd_boolean bfd_elf64_add_dynamic_entry |
c39a58e6 | 1610 | (struct bfd_link_info *, bfd_vma, bfd_vma); |
252b5132 | 1611 | |
30b30c21 RH |
1612 | #define bfd_elf32_link_record_dynamic_symbol \ |
1613 | _bfd_elf_link_record_dynamic_symbol | |
1614 | #define bfd_elf64_link_record_dynamic_symbol \ | |
1615 | _bfd_elf_link_record_dynamic_symbol | |
1616 | ||
8c58d23b | 1617 | extern int elf_link_record_local_dynamic_symbol |
c39a58e6 | 1618 | (struct bfd_link_info *, bfd *, long); |
8c58d23b AM |
1619 | #define _bfd_elf32_link_record_local_dynamic_symbol \ |
1620 | elf_link_record_local_dynamic_symbol | |
1621 | #define _bfd_elf64_link_record_local_dynamic_symbol \ | |
1622 | elf_link_record_local_dynamic_symbol | |
252b5132 | 1623 | |
b34976b6 | 1624 | extern bfd_boolean _bfd_elf_close_and_cleanup |
c39a58e6 | 1625 | (bfd *); |
252b5132 | 1626 | extern bfd_reloc_status_type _bfd_elf_rel_vtable_reloc_fn |
c39a58e6 AM |
1627 | (bfd *, arelent *, struct symbol_cache_entry *, void *, |
1628 | asection *, bfd *, char **); | |
252b5132 | 1629 | |
b34976b6 | 1630 | extern bfd_boolean _bfd_elf32_gc_sections |
c39a58e6 | 1631 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1632 | extern bfd_boolean _bfd_elf32_gc_common_finalize_got_offsets |
c39a58e6 | 1633 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1634 | extern bfd_boolean _bfd_elf32_gc_common_final_link |
c39a58e6 | 1635 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1636 | extern bfd_boolean _bfd_elf32_gc_record_vtinherit |
c39a58e6 | 1637 | (bfd *, asection *, struct elf_link_hash_entry *, bfd_vma); |
b34976b6 | 1638 | extern bfd_boolean _bfd_elf32_gc_record_vtentry |
c39a58e6 | 1639 | (bfd *, asection *, struct elf_link_hash_entry *, bfd_vma); |
252b5132 | 1640 | |
b34976b6 | 1641 | extern bfd_boolean _bfd_elf64_gc_sections |
c39a58e6 | 1642 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1643 | extern bfd_boolean _bfd_elf64_gc_common_finalize_got_offsets |
c39a58e6 | 1644 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1645 | extern bfd_boolean _bfd_elf64_gc_common_final_link |
c39a58e6 | 1646 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1647 | extern bfd_boolean _bfd_elf64_gc_record_vtinherit |
c39a58e6 | 1648 | (bfd *, asection *, struct elf_link_hash_entry *, bfd_vma); |
b34976b6 | 1649 | extern bfd_boolean _bfd_elf64_gc_record_vtentry |
c39a58e6 | 1650 | (bfd *, asection *, struct elf_link_hash_entry *, bfd_vma); |
252b5132 | 1651 | |
b34976b6 | 1652 | extern bfd_boolean _bfd_elf32_reloc_symbol_deleted_p |
c39a58e6 | 1653 | (bfd_vma, void *); |
b34976b6 | 1654 | extern bfd_boolean _bfd_elf64_reloc_symbol_deleted_p |
c39a58e6 | 1655 | (bfd_vma, void *); |
73d074b4 | 1656 | |
7c76fa91 | 1657 | /* Exported interface for writing elf corefile notes. */ |
d4c88bbb | 1658 | extern char *elfcore_write_note |
c39a58e6 | 1659 | (bfd *, char *, int *, const char *, int, const void *, int); |
d4c88bbb | 1660 | extern char *elfcore_write_prpsinfo |
c39a58e6 | 1661 | (bfd *, char *, int *, const char *, const char *); |
d4c88bbb | 1662 | extern char *elfcore_write_prstatus |
c39a58e6 | 1663 | (bfd *, char *, int *, long, int, const void *); |
d4c88bbb | 1664 | extern char * elfcore_write_pstatus |
c39a58e6 | 1665 | (bfd *, char *, int *, long, int, const void *); |
d4c88bbb | 1666 | extern char *elfcore_write_prfpreg |
c39a58e6 | 1667 | (bfd *, char *, int *, const void *, int); |
d4c88bbb | 1668 | extern char *elfcore_write_prxfpreg |
c39a58e6 | 1669 | (bfd *, char *, int *, const void *, int); |
d4c88bbb | 1670 | extern char *elfcore_write_lwpstatus |
c39a58e6 | 1671 | (bfd *, char *, int *, long, int, const void *); |
7c76fa91 | 1672 | |
8d6337fe | 1673 | extern bfd *_bfd_elf32_bfd_from_remote_memory |
c39a58e6 AM |
1674 | (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep, |
1675 | int (*target_read_memory) (bfd_vma, char *, int)); | |
8d6337fe | 1676 | extern bfd *_bfd_elf64_bfd_from_remote_memory |
c39a58e6 AM |
1677 | (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep, |
1678 | int (*target_read_memory) (bfd_vma, char *, int)); | |
8d6337fe | 1679 | |
d4845d57 JR |
1680 | /* SH ELF specific routine. */ |
1681 | ||
b34976b6 | 1682 | extern bfd_boolean _sh_elf_set_mach_from_flags |
c39a58e6 | 1683 | (bfd *); |
d4845d57 | 1684 | |
560e09e9 NC |
1685 | /* This macro is to avoid lots of duplicated code in the body |
1686 | of xxx_relocate_section() in the various elfxx-xxxx.c files. */ | |
1687 | #define RELOC_FOR_GLOBAL_SYMBOL(h, sym_hashes, r_symndx, symtab_hdr, relocation, sec, unresolved_reloc, info, warned) \ | |
1688 | do \ | |
1689 | { \ | |
1690 | /* It seems this can happen with erroneous or unsupported \ | |
1691 | input (mixing a.out and elf in an archive, for example.) */ \ | |
1692 | if (sym_hashes == NULL) \ | |
1693 | return FALSE; \ | |
1694 | \ | |
1695 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; \ | |
1696 | \ | |
1697 | while (h->root.type == bfd_link_hash_indirect \ | |
1698 | || h->root.type == bfd_link_hash_warning) \ | |
1699 | h = (struct elf_link_hash_entry *) h->root.u.i.link; \ | |
1700 | \ | |
1701 | warned = FALSE; \ | |
1702 | unresolved_reloc = FALSE; \ | |
1703 | relocation = 0; \ | |
1704 | if (h->root.type == bfd_link_hash_defined \ | |
1705 | || h->root.type == bfd_link_hash_defweak) \ | |
1706 | { \ | |
1707 | sec = h->root.u.def.section; \ | |
1708 | if (sec == NULL \ | |
1709 | || sec->output_section == NULL) \ | |
1710 | /* Set a flag that will be cleared later if we find a \ | |
1711 | relocation value for this symbol. output_section \ | |
1712 | is typically NULL for symbols satisfied by a shared \ | |
1713 | library. */ \ | |
1714 | unresolved_reloc = TRUE; \ | |
1715 | else \ | |
1716 | relocation = (h->root.u.def.value \ | |
1717 | + sec->output_section->vma \ | |
1718 | + sec->output_offset); \ | |
1719 | } \ | |
1720 | else if (h->root.type == bfd_link_hash_undefweak) \ | |
1721 | ; \ | |
1722 | else if (!info->executable \ | |
1723 | && info->unresolved_syms_in_objects == RM_IGNORE \ | |
1724 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) \ | |
1725 | ; \ | |
1726 | else \ | |
1727 | { \ | |
1728 | if (! info->callbacks->undefined_symbol \ | |
1729 | (info, h->root.root.string, input_bfd, \ | |
1730 | input_section, rel->r_offset, \ | |
1731 | ((info->shared && info->unresolved_syms_in_shared_libs == RM_GENERATE_ERROR) \ | |
1732 | || (!info->shared && info->unresolved_syms_in_objects == RM_GENERATE_ERROR) \ | |
1733 | || ELF_ST_VISIBILITY (h->other)) \ | |
1734 | )) \ | |
1735 | return FALSE; \ | |
1736 | warned = TRUE; \ | |
1737 | } \ | |
1738 | } \ | |
1739 | while (0) | |
1740 | ||
252b5132 | 1741 | #endif /* _LIBELF_H_ */ |