Commit | Line | Data |
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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, |
74f0fb50 | 3 | 2002, 2003, 2004, 2005, 2006, 2007, 2008 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 | |
cd123cb7 | 10 | the Free Software Foundation; either version 3 of the License, or |
5e8d7549 | 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 | |
cd123cb7 NC |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
21 | MA 02110-1301, USA. */ | |
252b5132 RH |
22 | |
23 | #ifndef _LIBELF_H_ | |
24 | #define _LIBELF_H_ 1 | |
25 | ||
26 | #include "elf/common.h" | |
252b5132 | 27 | #include "elf/external.h" |
4fbb74a6 | 28 | #include "elf/internal.h" |
252b5132 RH |
29 | #include "bfdlink.h" |
30 | ||
d9bc7a44 | 31 | /* The number of entries in a section is its size divided by the size |
51b64d56 | 32 | of a single entry. This is normally only applicable to reloc and |
d9bc7a44 NC |
33 | symbol table sections. */ |
34 | #define NUM_SHDR_ENTRIES(shdr) ((shdr)->sh_size / (shdr)->sh_entsize) | |
35 | ||
252b5132 RH |
36 | /* If size isn't specified as 64 or 32, NAME macro should fail. */ |
37 | #ifndef NAME | |
c39a58e6 AM |
38 | #if ARCH_SIZE == 64 |
39 | #define NAME(x, y) x ## 64 ## _ ## y | |
252b5132 | 40 | #endif |
c39a58e6 AM |
41 | #if ARCH_SIZE == 32 |
42 | #define NAME(x, y) x ## 32 ## _ ## y | |
252b5132 RH |
43 | #endif |
44 | #endif | |
45 | ||
46 | #ifndef NAME | |
c39a58e6 | 47 | #define NAME(x, y) x ## NOSIZE ## _ ## y |
252b5132 RH |
48 | #endif |
49 | ||
50 | #define ElfNAME(X) NAME(Elf,X) | |
51 | #define elfNAME(X) NAME(elf,X) | |
52 | ||
53 | /* Information held for an ELF symbol. The first field is the | |
54 | corresponding asymbol. Every symbol is an ELF file is actually a | |
55 | pointer to this structure, although it is often handled as a | |
56 | pointer to an asymbol. */ | |
57 | ||
58 | typedef struct | |
59 | { | |
60 | /* The BFD symbol. */ | |
61 | asymbol symbol; | |
62 | /* ELF symbol information. */ | |
63 | Elf_Internal_Sym internal_elf_sym; | |
64 | /* Backend specific information. */ | |
65 | union | |
66 | { | |
67 | unsigned int hppa_arg_reloc; | |
c39a58e6 AM |
68 | void *mips_extr; |
69 | void *any; | |
252b5132 RH |
70 | } |
71 | tc_data; | |
72 | ||
73 | /* Version information. This is from an Elf_Internal_Versym | |
74 | structure in a SHT_GNU_versym section. It is zero if there is no | |
75 | version information. */ | |
76 | unsigned short version; | |
77 | ||
78 | } elf_symbol_type; | |
79 | \f | |
2b0f7ef9 | 80 | struct elf_strtab_hash; |
5cab59f6 AM |
81 | struct got_entry; |
82 | struct plt_entry; | |
2b0f7ef9 | 83 | |
252b5132 RH |
84 | /* ELF linker hash table entries. */ |
85 | ||
86 | struct elf_link_hash_entry | |
87 | { | |
88 | struct bfd_link_hash_entry root; | |
89 | ||
90 | /* Symbol index in output file. This is initialized to -1. It is | |
91 | set to -2 if the symbol is used by a reloc. */ | |
92 | long indx; | |
93 | ||
252b5132 RH |
94 | /* Symbol index as a dynamic symbol. Initialized to -1, and remains |
95 | -1 if this is not a dynamic symbol. */ | |
30b30c21 RH |
96 | /* ??? Note that this is consistently used as a synonym for tests |
97 | against whether we can perform various simplifying transformations | |
98 | to the code. (E.g. changing a pc-relative jump to a PLT entry | |
99 | into a pc-relative jump to the target function.) That test, which | |
100 | is often relatively complex, and someplaces wrong or incomplete, | |
101 | should really be replaced by a predicate in elflink.c. | |
102 | ||
103 | End result: this field -1 does not indicate that the symbol is | |
104 | not in the dynamic symbol table, but rather that the symbol is | |
105 | not visible outside this DSO. */ | |
252b5132 RH |
106 | long dynindx; |
107 | ||
a90b9fca AM |
108 | /* If this symbol requires an entry in the global offset table, the |
109 | processor specific backend uses this field to track usage and | |
5cab59f6 AM |
110 | final offset. Two schemes are supported: The first assumes that |
111 | a symbol may only have one GOT entry, and uses REFCOUNT until | |
112 | size_dynamic_sections, at which point the contents of the .got is | |
113 | fixed. Afterward, if OFFSET is -1, then the symbol does not | |
114 | require a global offset table entry. The second scheme allows | |
115 | multiple GOT entries per symbol, managed via a linked list | |
116 | pointed to by GLIST. */ | |
117 | union gotplt_union | |
a90b9fca AM |
118 | { |
119 | bfd_signed_vma refcount; | |
120 | bfd_vma offset; | |
5cab59f6 AM |
121 | struct got_entry *glist; |
122 | struct plt_entry *plist; | |
a90b9fca AM |
123 | } got; |
124 | ||
125 | /* Same, but tracks a procedure linkage table entry. */ | |
5cab59f6 | 126 | union gotplt_union plt; |
a90b9fca AM |
127 | |
128 | /* Symbol size. */ | |
129 | bfd_size_type size; | |
130 | ||
252b5132 | 131 | /* Symbol type (STT_NOTYPE, STT_OBJECT, etc.). */ |
f5385ebf | 132 | unsigned int type : 8; |
252b5132 | 133 | |
9b234ee9 | 134 | /* Symbol st_other value, symbol visibility. */ |
f5385ebf | 135 | unsigned int other : 8; |
252b5132 | 136 | |
252b5132 | 137 | /* Symbol is referenced by a non-shared object. */ |
f5385ebf | 138 | unsigned int ref_regular : 1; |
252b5132 | 139 | /* Symbol is defined by a non-shared object. */ |
f5385ebf | 140 | unsigned int def_regular : 1; |
252b5132 | 141 | /* Symbol is referenced by a shared object. */ |
f5385ebf | 142 | unsigned int ref_dynamic : 1; |
252b5132 | 143 | /* Symbol is defined by a shared object. */ |
f5385ebf | 144 | unsigned int def_dynamic : 1; |
252b5132 | 145 | /* Symbol has a non-weak reference from a non-shared object. */ |
f5385ebf | 146 | unsigned int ref_regular_nonweak : 1; |
252b5132 | 147 | /* Dynamic symbol has been adjustd. */ |
f5385ebf | 148 | unsigned int dynamic_adjusted : 1; |
252b5132 | 149 | /* Symbol needs a copy reloc. */ |
f5385ebf | 150 | unsigned int needs_copy : 1; |
252b5132 | 151 | /* Symbol needs a procedure linkage table entry. */ |
f5385ebf | 152 | unsigned int needs_plt : 1; |
252b5132 | 153 | /* Symbol appears in a non-ELF input file. */ |
f5385ebf | 154 | unsigned int non_elf : 1; |
252b5132 | 155 | /* Symbol should be marked as hidden in the version information. */ |
f5385ebf | 156 | unsigned int hidden : 1; |
252b5132 | 157 | /* Symbol was forced to local scope due to a version script file. */ |
f5385ebf | 158 | unsigned int forced_local : 1; |
55255dae L |
159 | /* Symbol was forced to be dynamic due to a version script file. */ |
160 | unsigned int dynamic : 1; | |
252b5132 | 161 | /* Symbol was marked during garbage collection. */ |
f5385ebf | 162 | unsigned int mark : 1; |
7843f00e ILT |
163 | /* Symbol is referenced by a non-GOT/non-PLT relocation. This is |
164 | not currently set by all the backends. */ | |
f5385ebf | 165 | unsigned int non_got_ref : 1; |
f6e332e6 AM |
166 | /* Symbol has a definition in a shared object. |
167 | FIXME: There is no real need for this field if def_dynamic is never | |
168 | cleared and all places that test def_dynamic also test def_regular. */ | |
f5385ebf | 169 | unsigned int dynamic_def : 1; |
1b1fe8fe | 170 | /* Symbol is weak in all shared objects. */ |
f5385ebf | 171 | unsigned int dynamic_weak : 1; |
c6585bbb JJ |
172 | /* Symbol is referenced with a relocation where C/C++ pointer equality |
173 | matters. */ | |
f5385ebf | 174 | unsigned int pointer_equality_needed : 1; |
f6e332e6 AM |
175 | |
176 | /* String table index in .dynstr if this is a dynamic symbol. */ | |
177 | unsigned long dynstr_index; | |
178 | ||
179 | union | |
180 | { | |
181 | /* If this is a weak defined symbol from a dynamic object, this | |
182 | field points to a defined symbol with the same value, if there is | |
183 | one. Otherwise it is NULL. */ | |
184 | struct elf_link_hash_entry *weakdef; | |
185 | ||
186 | /* Hash value of the name computed using the ELF hash function. | |
187 | Used part way through size_dynamic_sections, after we've finished | |
188 | with weakdefs. */ | |
189 | unsigned long elf_hash_value; | |
190 | } u; | |
191 | ||
192 | /* Version information. */ | |
193 | union | |
194 | { | |
195 | /* This field is used for a symbol which is not defined in a | |
196 | regular object. It points to the version information read in | |
197 | from the dynamic object. */ | |
198 | Elf_Internal_Verdef *verdef; | |
199 | /* This field is used for a symbol which is defined in a regular | |
200 | object. It is set up in size_dynamic_sections. It points to | |
201 | the version information we should write out for this symbol. */ | |
202 | struct bfd_elf_version_tree *vertree; | |
203 | } verinfo; | |
204 | ||
205 | struct | |
206 | { | |
207 | /* Virtual table entry use information. This array is nominally of size | |
208 | size/sizeof(target_void_pointer), though we have to be able to assume | |
209 | and track a size while the symbol is still undefined. It is indexed | |
210 | via offset/sizeof(target_void_pointer). */ | |
211 | size_t size; | |
212 | bfd_boolean *used; | |
213 | ||
214 | /* Virtual table derivation info. */ | |
215 | struct elf_link_hash_entry *parent; | |
216 | } *vtable; | |
252b5132 RH |
217 | }; |
218 | ||
586119b3 AM |
219 | /* Will references to this symbol always reference the symbol |
220 | in this object? STV_PROTECTED is excluded from the visibility test | |
221 | here so that function pointer comparisons work properly. Since | |
222 | function symbols not defined in an app are set to their .plt entry, | |
223 | it's necessary for shared libs to also reference the .plt even | |
224 | though the symbol is really local to the shared lib. */ | |
986a241f | 225 | #define SYMBOL_REFERENCES_LOCAL(INFO, H) \ |
f6c52c13 | 226 | _bfd_elf_symbol_refs_local_p (H, INFO, 0) |
586119b3 AM |
227 | |
228 | /* Will _calls_ to this symbol always call the version in this object? */ | |
986a241f | 229 | #define SYMBOL_CALLS_LOCAL(INFO, H) \ |
f6c52c13 | 230 | _bfd_elf_symbol_refs_local_p (H, INFO, 1) |
586119b3 | 231 | |
7e2294f9 AO |
232 | /* Common symbols that are turned into definitions don't have the |
233 | DEF_REGULAR flag set, so they might appear to be undefined. */ | |
234 | #define ELF_COMMON_DEF_P(H) \ | |
f5385ebf AM |
235 | (!(H)->def_regular \ |
236 | && !(H)->def_dynamic \ | |
7e2294f9 AO |
237 | && (H)->root.type == bfd_link_hash_defined) |
238 | ||
30b30c21 RH |
239 | /* Records local symbols to be emitted in the dynamic symbol table. */ |
240 | ||
241 | struct elf_link_local_dynamic_entry | |
242 | { | |
243 | struct elf_link_local_dynamic_entry *next; | |
244 | ||
245 | /* The input bfd this symbol came from. */ | |
246 | bfd *input_bfd; | |
247 | ||
248 | /* The index of the local symbol being copied. */ | |
249 | long input_indx; | |
250 | ||
251 | /* The index in the outgoing dynamic symbol table. */ | |
252 | long dynindx; | |
3e932841 | 253 | |
30b30c21 RH |
254 | /* A copy of the input symbol. */ |
255 | Elf_Internal_Sym isym; | |
256 | }; | |
257 | ||
f5d44ba0 AM |
258 | struct elf_link_loaded_list |
259 | { | |
260 | struct elf_link_loaded_list *next; | |
261 | bfd *abfd; | |
262 | }; | |
263 | ||
126495ed | 264 | /* Structures used by the eh_frame optimization code. */ |
126495ed AM |
265 | struct eh_cie_fde |
266 | { | |
155eaaa0 RS |
267 | union { |
268 | struct { | |
ca92cecb RS |
269 | /* If REMOVED == 1, this is the CIE that the FDE originally used. |
270 | The CIE belongs to the same .eh_frame input section as the FDE. | |
271 | ||
272 | If REMOVED == 0, this is the CIE that we have chosen to use for | |
273 | the output FDE. The CIE's REMOVED field is also 0, but the CIE | |
274 | might belong to a different .eh_frame input section from the FDE. */ | |
155eaaa0 | 275 | struct eh_cie_fde *cie_inf; |
9d0a14d3 | 276 | struct eh_cie_fde *next_for_section; |
155eaaa0 | 277 | } fde; |
ca92cecb | 278 | struct { |
184d07da | 279 | /* CIEs have three states: |
fc802241 | 280 | |
184d07da RS |
281 | - REMOVED && !MERGED: Slated for removal because we haven't yet |
282 | proven that an FDE needs it. FULL_CIE, if nonnull, points to | |
283 | more detailed information about the CIE. | |
fc802241 | 284 | |
184d07da RS |
285 | - REMOVED && MERGED: We have merged this CIE with MERGED_WITH, |
286 | which may not belong to the same input section. | |
287 | ||
288 | - !REMOVED: We have decided to keep this CIE. SEC is the | |
289 | .eh_frame input section that contains the CIE. */ | |
fc802241 | 290 | union { |
184d07da RS |
291 | struct cie *full_cie; |
292 | struct eh_cie_fde *merged_with; | |
fc802241 RS |
293 | asection *sec; |
294 | } u; | |
9d0a14d3 RS |
295 | |
296 | /* True if we have marked relocations associated with this CIE. */ | |
297 | unsigned int gc_mark : 1; | |
9f4b847e RS |
298 | |
299 | /* True if we have decided to turn an absolute LSDA encoding into | |
184d07da | 300 | a PC-relative one. */ |
9f4b847e | 301 | unsigned int make_lsda_relative : 1; |
6b2cc140 RS |
302 | |
303 | /* True if the CIE contains personality data and if that data | |
304 | uses a PC-relative encoding. */ | |
305 | unsigned int per_encoding_relative : 1; | |
306 | ||
307 | /* True if we need to add an 'R' (FDE encoding) entry to the | |
308 | CIE's augmentation data. */ | |
309 | unsigned int add_fde_encoding : 1; | |
184d07da RS |
310 | |
311 | /* True if we have merged this CIE with another. */ | |
312 | unsigned int merged : 1; | |
ca92cecb | 313 | } cie; |
155eaaa0 RS |
314 | } u; |
315 | unsigned int reloc_index; | |
126495ed | 316 | unsigned int size; |
fda3ecf2 | 317 | unsigned int offset; |
126495ed | 318 | unsigned int new_offset; |
155eaaa0 RS |
319 | unsigned int fde_encoding : 8; |
320 | unsigned int lsda_encoding : 8; | |
321 | unsigned int lsda_offset : 8; | |
6b2cc140 RS |
322 | |
323 | /* True if this entry represents a CIE, false if it represents an FDE. */ | |
822392ce | 324 | unsigned int cie : 1; |
6b2cc140 RS |
325 | |
326 | /* True if this entry is currently marked for removal. */ | |
822392ce | 327 | unsigned int removed : 1; |
6b2cc140 RS |
328 | |
329 | /* True if we need to add a 'z' (augmentation size) entry to the CIE's | |
330 | augmentation data, and an associated byte to each of the CIE's FDEs. */ | |
353057a5 | 331 | unsigned int add_augmentation_size : 1; |
6b2cc140 RS |
332 | |
333 | /* True if we have decided to convert absolute FDE relocations into | |
334 | relative ones. This applies to the first relocation in the FDE, | |
335 | which is against the code that the FDE describes. */ | |
822392ce | 336 | unsigned int make_relative : 1; |
6b2cc140 RS |
337 | |
338 | /* Unused bits. */ | |
339 | unsigned int pad1 : 4; | |
340 | ||
ac685e6a | 341 | unsigned int *set_loc; |
126495ed AM |
342 | }; |
343 | ||
344 | struct eh_frame_sec_info | |
345 | { | |
346 | unsigned int count; | |
184d07da | 347 | struct cie *cies; |
126495ed AM |
348 | struct eh_cie_fde entry[1]; |
349 | }; | |
350 | ||
351 | struct eh_frame_array_ent | |
352 | { | |
353 | bfd_vma initial_loc; | |
354 | bfd_vma fde; | |
355 | }; | |
356 | ||
bce613b9 JJ |
357 | struct htab; |
358 | ||
126495ed AM |
359 | struct eh_frame_hdr_info |
360 | { | |
bce613b9 | 361 | struct htab *cies; |
126495ed | 362 | asection *hdr_sec; |
126495ed AM |
363 | unsigned int fde_count, array_count; |
364 | struct eh_frame_array_ent *array; | |
184d07da RS |
365 | /* TRUE if we should try to merge CIEs between input sections. */ |
366 | bfd_boolean merge_cies; | |
ca92cecb RS |
367 | /* TRUE if all .eh_frames have been parsd. */ |
368 | bfd_boolean parsed_eh_frames; | |
126495ed AM |
369 | /* TRUE if .eh_frame_hdr should contain the sorted search table. |
370 | We build it if we successfully read all .eh_frame input sections | |
371 | and recognize them. */ | |
b34976b6 | 372 | bfd_boolean table; |
126495ed AM |
373 | }; |
374 | ||
252b5132 RH |
375 | /* ELF linker hash table. */ |
376 | ||
377 | struct elf_link_hash_table | |
378 | { | |
379 | struct bfd_link_hash_table root; | |
51b64d56 | 380 | |
252b5132 RH |
381 | /* Whether we have created the special dynamic sections required |
382 | when linking against or generating a shared object. */ | |
b34976b6 | 383 | bfd_boolean dynamic_sections_created; |
51b64d56 | 384 | |
74541ad4 AM |
385 | /* True if this target has relocatable executables, so needs dynamic |
386 | section symbols. */ | |
387 | bfd_boolean is_relocatable_executable; | |
388 | ||
252b5132 RH |
389 | /* The BFD used to hold special sections created by the linker. |
390 | This will be the first BFD found which requires these sections to | |
391 | be created. */ | |
392 | bfd *dynobj; | |
51b64d56 AM |
393 | |
394 | /* The value to use when initialising got.refcount/offset and | |
395 | plt.refcount/offset in an elf_link_hash_entry. Set to zero when | |
a6aa5195 AM |
396 | the values are refcounts. Set to init_got_offset/init_plt_offset |
397 | in size_dynamic_sections when the values may be offsets. */ | |
398 | union gotplt_union init_got_refcount; | |
399 | union gotplt_union init_plt_refcount; | |
5cab59f6 AM |
400 | |
401 | /* The value to use for got.refcount/offset and plt.refcount/offset | |
402 | when the values may be offsets. Normally (bfd_vma) -1. */ | |
a6aa5195 AM |
403 | union gotplt_union init_got_offset; |
404 | union gotplt_union init_plt_offset; | |
51b64d56 | 405 | |
252b5132 RH |
406 | /* The number of symbols found in the link which must be put into |
407 | the .dynsym section. */ | |
408 | bfd_size_type dynsymcount; | |
51b64d56 | 409 | |
252b5132 RH |
410 | /* The string table of dynamic symbols, which becomes the .dynstr |
411 | section. */ | |
2b0f7ef9 | 412 | struct elf_strtab_hash *dynstr; |
51b64d56 | 413 | |
252b5132 RH |
414 | /* The number of buckets in the hash table in the .hash section. |
415 | This is based on the number of dynamic symbols. */ | |
416 | bfd_size_type bucketcount; | |
51b64d56 | 417 | |
252b5132 RH |
418 | /* A linked list of DT_NEEDED names found in dynamic objects |
419 | included in the link. */ | |
420 | struct bfd_link_needed_list *needed; | |
51b64d56 | 421 | |
74541ad4 AM |
422 | /* Sections in the output bfd that provides a section symbol |
423 | to be used by relocations emitted against local symbols. | |
424 | Most targets will not use data_index_section. */ | |
425 | asection *text_index_section; | |
426 | asection *data_index_section; | |
427 | ||
252b5132 RH |
428 | /* The _GLOBAL_OFFSET_TABLE_ symbol. */ |
429 | struct elf_link_hash_entry *hgot; | |
51b64d56 | 430 | |
7325306f RS |
431 | /* The _PROCEDURE_LINKAGE_TABLE_ symbol. */ |
432 | struct elf_link_hash_entry *hplt; | |
433 | ||
f5fa8ca2 | 434 | /* A pointer to information used to merge SEC_MERGE sections. */ |
c39a58e6 | 435 | void *merge_info; |
51b64d56 | 436 | |
3722b82f AM |
437 | /* Used to link stabs in sections. */ |
438 | struct stab_info stab_info; | |
439 | ||
126495ed AM |
440 | /* Used by eh_frame code when editing .eh_frame. */ |
441 | struct eh_frame_hdr_info eh_info; | |
442 | ||
30b30c21 RH |
443 | /* A linked list of local symbols to be added to .dynsym. */ |
444 | struct elf_link_local_dynamic_entry *dynlocal; | |
51b64d56 | 445 | |
a963dc6a L |
446 | /* A linked list of DT_RPATH/DT_RUNPATH names found in dynamic |
447 | objects included in the link. */ | |
448 | struct bfd_link_needed_list *runpath; | |
13ae64f3 | 449 | |
e1918d23 AM |
450 | /* Cached first output tls section and size of PT_TLS segment. */ |
451 | asection *tls_sec; | |
452 | bfd_size_type tls_size; | |
f5d44ba0 AM |
453 | |
454 | /* A linked list of BFD's loaded in the link. */ | |
455 | struct elf_link_loaded_list *loaded; | |
252b5132 RH |
456 | }; |
457 | ||
458 | /* Look up an entry in an ELF linker hash table. */ | |
459 | ||
460 | #define elf_link_hash_lookup(table, string, create, copy, follow) \ | |
461 | ((struct elf_link_hash_entry *) \ | |
462 | bfd_link_hash_lookup (&(table)->root, (string), (create), \ | |
463 | (copy), (follow))) | |
464 | ||
465 | /* Traverse an ELF linker hash table. */ | |
466 | ||
467 | #define elf_link_hash_traverse(table, func, info) \ | |
468 | (bfd_link_hash_traverse \ | |
469 | (&(table)->root, \ | |
c39a58e6 | 470 | (bfd_boolean (*) (struct bfd_link_hash_entry *, void *)) (func), \ |
252b5132 RH |
471 | (info))) |
472 | ||
473 | /* Get the ELF linker hash table from a link_info structure. */ | |
474 | ||
475 | #define elf_hash_table(p) ((struct elf_link_hash_table *) ((p)->hash)) | |
8ea2e4bd | 476 | |
b34976b6 | 477 | /* Returns TRUE if the hash table is a struct elf_link_hash_table. */ |
0eddce27 AM |
478 | #define is_elf_hash_table(htab) \ |
479 | (((struct bfd_link_hash_table *) (htab))->type == bfd_link_elf_hash_table) | |
ec338859 AM |
480 | |
481 | /* Used by bfd_section_from_r_symndx to cache a small number of local | |
482 | symbol to section mappings. */ | |
483 | #define LOCAL_SYM_CACHE_SIZE 32 | |
484 | struct sym_sec_cache | |
485 | { | |
486 | bfd *abfd; | |
487 | unsigned long indx[LOCAL_SYM_CACHE_SIZE]; | |
a5d1b3b5 | 488 | unsigned int shndx[LOCAL_SYM_CACHE_SIZE]; |
ec338859 | 489 | }; |
252b5132 RH |
490 | \f |
491 | /* Constant information held for an ELF backend. */ | |
492 | ||
493 | struct elf_size_info { | |
494 | unsigned char sizeof_ehdr, sizeof_phdr, sizeof_shdr; | |
495 | unsigned char sizeof_rel, sizeof_rela, sizeof_sym, sizeof_dyn, sizeof_note; | |
496 | ||
c7ac6ff8 MM |
497 | /* The size of entries in the .hash section. */ |
498 | unsigned char sizeof_hash_entry; | |
499 | ||
500 | /* The number of internal relocations to allocate per external | |
501 | relocation entry. */ | |
502 | unsigned char int_rels_per_ext_rel; | |
947216bf AM |
503 | /* We use some fixed size arrays. This should be large enough to |
504 | handle all back-ends. */ | |
505 | #define MAX_INT_RELS_PER_EXT_REL 3 | |
c7ac6ff8 | 506 | |
45d6a902 | 507 | unsigned char arch_size, log_file_align; |
252b5132 | 508 | unsigned char elfclass, ev_current; |
dc810e39 | 509 | int (*write_out_phdrs) |
c39a58e6 AM |
510 | (bfd *, const Elf_Internal_Phdr *, unsigned int); |
511 | bfd_boolean | |
512 | (*write_shdrs_and_ehdr) (bfd *); | |
20a761b5 RM |
513 | bfd_boolean (*checksum_contents) |
514 | (bfd * , void (*) (const void *, size_t, void *), void *); | |
dc810e39 | 515 | void (*write_relocs) |
c39a58e6 | 516 | (bfd *, asection *, void *); |
8384fb8f | 517 | bfd_boolean (*swap_symbol_in) |
c39a58e6 | 518 | (bfd *, const void *, const void *, Elf_Internal_Sym *); |
dc810e39 | 519 | void (*swap_symbol_out) |
c39a58e6 | 520 | (bfd *, const Elf_Internal_Sym *, void *, void *); |
b34976b6 | 521 | bfd_boolean (*slurp_reloc_table) |
c39a58e6 | 522 | (bfd *, asection *, asymbol **, bfd_boolean); |
dc810e39 | 523 | long (*slurp_symbol_table) |
c39a58e6 | 524 | (bfd *, asymbol **, bfd_boolean); |
dc810e39 | 525 | void (*swap_dyn_in) |
c39a58e6 | 526 | (bfd *, const void *, Elf_Internal_Dyn *); |
dc810e39 | 527 | void (*swap_dyn_out) |
c39a58e6 | 528 | (bfd *, const Elf_Internal_Dyn *, void *); |
c7ac6ff8 | 529 | |
947216bf AM |
530 | /* This function is called to swap in a REL relocation. If an |
531 | external relocation corresponds to more than one internal | |
532 | relocation, then all relocations are swapped in at once. */ | |
c7ac6ff8 | 533 | void (*swap_reloc_in) |
c39a58e6 | 534 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
c7ac6ff8 | 535 | |
947216bf | 536 | /* This function is called to swap out a REL relocation. */ |
c7ac6ff8 | 537 | void (*swap_reloc_out) |
c39a58e6 | 538 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
c7ac6ff8 | 539 | |
947216bf AM |
540 | /* This function is called to swap in a RELA relocation. If an |
541 | external relocation corresponds to more than one internal | |
542 | relocation, then all relocations are swapped in at once. */ | |
c7ac6ff8 | 543 | void (*swap_reloca_in) |
c39a58e6 | 544 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
c7ac6ff8 | 545 | |
947216bf | 546 | /* This function is called to swap out a RELA relocation. */ |
c7ac6ff8 | 547 | void (*swap_reloca_out) |
c39a58e6 | 548 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
252b5132 RH |
549 | }; |
550 | ||
551 | #define elf_symbol_from(ABFD,S) \ | |
552 | (((S)->the_bfd->xvec->flavour == bfd_target_elf_flavour \ | |
553 | && (S)->the_bfd->tdata.elf_obj_data != 0) \ | |
554 | ? (elf_symbol_type *) (S) \ | |
555 | : 0) | |
556 | ||
db6751f2 JJ |
557 | enum elf_reloc_type_class { |
558 | reloc_class_normal, | |
559 | reloc_class_relative, | |
560 | reloc_class_plt, | |
561 | reloc_class_copy | |
562 | }; | |
563 | ||
73d074b4 DJ |
564 | struct elf_reloc_cookie |
565 | { | |
566 | Elf_Internal_Rela *rels, *rel, *relend; | |
6cdc0ccc | 567 | Elf_Internal_Sym *locsyms; |
73d074b4 DJ |
568 | bfd *abfd; |
569 | size_t locsymcount; | |
570 | size_t extsymoff; | |
571 | struct elf_link_hash_entry **sym_hashes; | |
140f6c8e | 572 | int r_sym_shift; |
b34976b6 | 573 | bfd_boolean bad_symtab; |
73d074b4 DJ |
574 | }; |
575 | ||
c6e90b02 TS |
576 | /* The level of IRIX compatibility we're striving for. */ |
577 | ||
578 | typedef enum { | |
579 | ict_none, | |
580 | ict_irix5, | |
581 | ict_irix6 | |
582 | } irix_compat_t; | |
583 | ||
2f89ff8d L |
584 | /* Mapping of ELF section names and types. */ |
585 | struct bfd_elf_special_section | |
586 | { | |
587 | const char *prefix; | |
7dcb9820 AM |
588 | int prefix_length; |
589 | /* 0 means name must match PREFIX exactly. | |
590 | -1 means name must start with PREFIX followed by an arbitrary string. | |
591 | -2 means name must match PREFIX exactly or consist of PREFIX followed | |
592 | by a dot then anything. | |
593 | > 0 means name must start with the first PREFIX_LENGTH chars of | |
594 | PREFIX and finish with the last SUFFIX_LENGTH chars of PREFIX. */ | |
595 | int suffix_length; | |
2f89ff8d | 596 | int type; |
7dcb9820 | 597 | int attr; |
2f89ff8d L |
598 | }; |
599 | ||
8a696751 AM |
600 | enum action_discarded |
601 | { | |
602 | COMPLAIN = 1, | |
603 | PRETEND = 2 | |
604 | }; | |
605 | ||
6a5bb875 PB |
606 | typedef asection * (*elf_gc_mark_hook_fn) |
607 | (asection *, struct bfd_link_info *, Elf_Internal_Rela *, | |
608 | struct elf_link_hash_entry *, Elf_Internal_Sym *); | |
609 | ||
252b5132 RH |
610 | struct elf_backend_data |
611 | { | |
252b5132 RH |
612 | /* The architecture for this backend. */ |
613 | enum bfd_architecture arch; | |
614 | ||
615 | /* The ELF machine code (EM_xxxx) for this backend. */ | |
616 | int elf_machine_code; | |
617 | ||
d1036acb L |
618 | /* EI_OSABI. */ |
619 | int elf_osabi; | |
620 | ||
252b5132 RH |
621 | /* The maximum page size for this backend. */ |
622 | bfd_vma maxpagesize; | |
623 | ||
b1342370 DJ |
624 | /* The minimum page size for this backend. An input object will not be |
625 | considered page aligned unless its sections are correctly aligned for | |
626 | pages at least this large. May be smaller than maxpagesize. */ | |
627 | bfd_vma minpagesize; | |
628 | ||
24718e3b L |
629 | /* The common page size for this backend. */ |
630 | bfd_vma commonpagesize; | |
631 | ||
e5a52504 MM |
632 | /* The BFD flags applied to sections created for dynamic linking. */ |
633 | flagword dynamic_sec_flags; | |
634 | ||
252b5132 RH |
635 | /* A function to translate an ELF RELA relocation to a BFD arelent |
636 | structure. */ | |
dc810e39 | 637 | void (*elf_info_to_howto) |
c39a58e6 | 638 | (bfd *, arelent *, Elf_Internal_Rela *); |
252b5132 RH |
639 | |
640 | /* A function to translate an ELF REL relocation to a BFD arelent | |
641 | structure. */ | |
dc810e39 | 642 | void (*elf_info_to_howto_rel) |
c39a58e6 | 643 | (bfd *, arelent *, Elf_Internal_Rela *); |
252b5132 RH |
644 | |
645 | /* A function to determine whether a symbol is global when | |
646 | partitioning the symbol table into local and global symbols. | |
647 | This should be NULL for most targets, in which case the correct | |
648 | thing will be done. MIPS ELF, at least on the Irix 5, has | |
649 | special requirements. */ | |
b34976b6 | 650 | bfd_boolean (*elf_backend_sym_is_global) |
c39a58e6 | 651 | (bfd *, asymbol *); |
252b5132 RH |
652 | |
653 | /* The remaining functions are hooks which are called only if they | |
654 | are not NULL. */ | |
655 | ||
656 | /* A function to permit a backend specific check on whether a | |
657 | particular BFD format is relevant for an object file, and to | |
658 | permit the backend to set any global information it wishes. When | |
659 | this is called elf_elfheader is set, but anything else should be | |
b34976b6 | 660 | used with caution. If this returns FALSE, the check_format |
252b5132 | 661 | routine will return a bfd_error_wrong_format error. */ |
b34976b6 | 662 | bfd_boolean (*elf_backend_object_p) |
c39a58e6 | 663 | (bfd *); |
252b5132 RH |
664 | |
665 | /* A function to do additional symbol processing when reading the | |
666 | ELF symbol table. This is where any processor-specific special | |
667 | section indices are handled. */ | |
dc810e39 | 668 | void (*elf_backend_symbol_processing) |
c39a58e6 | 669 | (bfd *, asymbol *); |
252b5132 RH |
670 | |
671 | /* A function to do additional symbol processing after reading the | |
672 | entire ELF symbol table. */ | |
b34976b6 | 673 | bfd_boolean (*elf_backend_symbol_table_processing) |
c39a58e6 | 674 | (bfd *, elf_symbol_type *, unsigned int); |
252b5132 | 675 | |
8387904d | 676 | /* A function to set the type of the info field. Processor-specific |
3e932841 | 677 | types should be handled here. */ |
dc810e39 | 678 | int (*elf_backend_get_symbol_type) |
c39a58e6 | 679 | (Elf_Internal_Sym *, int); |
60bcf0fa | 680 | |
8387904d AM |
681 | /* A function to return the linker hash table entry of a symbol that |
682 | might be satisfied by an archive symbol. */ | |
683 | struct elf_link_hash_entry * (*elf_backend_archive_symbol_lookup) | |
684 | (bfd *, struct bfd_link_info *, const char *); | |
685 | ||
174fd7f9 RS |
686 | /* Return true if local section symbols should have a non-null st_name. |
687 | NULL implies false. */ | |
688 | bfd_boolean (*elf_backend_name_local_section_symbols) | |
689 | (bfd *); | |
690 | ||
252b5132 RH |
691 | /* A function to do additional processing on the ELF section header |
692 | just before writing it out. This is used to set the flags and | |
693 | type fields for some sections, or to actually write out data for | |
694 | unusual sections. */ | |
b34976b6 | 695 | bfd_boolean (*elf_backend_section_processing) |
c39a58e6 | 696 | (bfd *, Elf_Internal_Shdr *); |
252b5132 RH |
697 | |
698 | /* A function to handle unusual section types when creating BFD | |
699 | sections from ELF sections. */ | |
b34976b6 | 700 | bfd_boolean (*elf_backend_section_from_shdr) |
6dc132d9 | 701 | (bfd *, Elf_Internal_Shdr *, const char *, int); |
252b5132 | 702 | |
551b43fd | 703 | /* A function to convert machine dependent ELF section header flags to |
fa152c49 | 704 | BFD internal section header flags. */ |
b34976b6 | 705 | bfd_boolean (*elf_backend_section_flags) |
1829f4b2 | 706 | (flagword *, const Elf_Internal_Shdr *); |
fa152c49 | 707 | |
551b43fd AM |
708 | /* A function that returns a struct containing ELF section flags and |
709 | type for the given BFD section. */ | |
710 | const struct bfd_elf_special_section * (*get_sec_type_attr) | |
711 | (bfd *, asection *); | |
712 | ||
20cfcaae | 713 | /* A function to handle unusual program segment types when creating BFD |
3e932841 | 714 | sections from ELF program segments. */ |
b34976b6 | 715 | bfd_boolean (*elf_backend_section_from_phdr) |
d27f5fa1 | 716 | (bfd *, Elf_Internal_Phdr *, int, const char *); |
20cfcaae | 717 | |
252b5132 RH |
718 | /* A function to set up the ELF section header for a BFD section in |
719 | preparation for writing it out. This is where the flags and type | |
720 | fields are set for unusual sections. */ | |
b34976b6 | 721 | bfd_boolean (*elf_backend_fake_sections) |
c39a58e6 | 722 | (bfd *, Elf_Internal_Shdr *, asection *); |
252b5132 RH |
723 | |
724 | /* A function to get the ELF section index for a BFD section. If | |
b34976b6 | 725 | this returns TRUE, the section was found. If it is a normal ELF |
252b5132 RH |
726 | section, *RETVAL should be left unchanged. If it is not a normal |
727 | ELF section *RETVAL should be set to the SHN_xxxx index. */ | |
b34976b6 | 728 | bfd_boolean (*elf_backend_section_from_bfd_section) |
c39a58e6 | 729 | (bfd *, asection *, int *retval); |
252b5132 RH |
730 | |
731 | /* If this field is not NULL, it is called by the add_symbols phase | |
732 | of a link just before adding a symbol to the global linker hash | |
733 | table. It may modify any of the fields as it wishes. If *NAME | |
734 | is set to NULL, the symbol will be skipped rather than being | |
735 | added to the hash table. This function is responsible for | |
736 | handling all processor dependent symbol bindings and section | |
737 | indices, and must set at least *FLAGS and *SEC for each processor | |
738 | dependent case; failure to do so will cause a link error. */ | |
b34976b6 | 739 | bfd_boolean (*elf_add_symbol_hook) |
555cd476 | 740 | (bfd *abfd, struct bfd_link_info *info, Elf_Internal_Sym *, |
c39a58e6 | 741 | const char **name, flagword *flags, asection **sec, bfd_vma *value); |
252b5132 RH |
742 | |
743 | /* If this field is not NULL, it is called by the elf_link_output_sym | |
744 | phase of a link for each symbol which will appear in the object file. */ | |
b34976b6 | 745 | bfd_boolean (*elf_backend_link_output_symbol_hook) |
754021d0 AM |
746 | (struct bfd_link_info *info, const char *, Elf_Internal_Sym *, |
747 | asection *, struct elf_link_hash_entry *); | |
252b5132 RH |
748 | |
749 | /* The CREATE_DYNAMIC_SECTIONS function is called by the ELF backend | |
750 | linker the first time it encounters a dynamic object in the link. | |
751 | This function must create any sections required for dynamic | |
752 | linking. The ABFD argument is a dynamic object. The .interp, | |
753 | .dynamic, .dynsym, .dynstr, and .hash functions have already been | |
754 | created, and this function may modify the section flags if | |
755 | desired. This function will normally create the .got and .plt | |
756 | sections, but different backends have different requirements. */ | |
b34976b6 | 757 | bfd_boolean (*elf_backend_create_dynamic_sections) |
c39a58e6 | 758 | (bfd *abfd, struct bfd_link_info *info); |
252b5132 | 759 | |
aee6f5b4 AO |
760 | /* When creating a shared library, determine whether to omit the |
761 | dynamic symbol for the section. */ | |
762 | bfd_boolean (*elf_backend_omit_section_dynsym) | |
763 | (bfd *output_bfd, struct bfd_link_info *info, asection *osec); | |
764 | ||
13285a1b AM |
765 | /* Return TRUE if relocations of targets are compatible to the extent |
766 | that CHECK_RELOCS will properly process them. PR 4424. */ | |
767 | bfd_boolean (*relocs_compatible) (const bfd_target *, const bfd_target *); | |
768 | ||
252b5132 RH |
769 | /* The CHECK_RELOCS function is called by the add_symbols phase of |
770 | the ELF backend linker. It is called once for each section with | |
771 | relocs of an object file, just after the symbols for the object | |
772 | file have been added to the global linker hash table. The | |
773 | function must look through the relocs and do any special handling | |
774 | required. This generally means allocating space in the global | |
775 | offset table, and perhaps allocating space for a reloc. The | |
776 | relocs are always passed as Rela structures; if the section | |
777 | actually uses Rel structures, the r_addend field will always be | |
778 | zero. */ | |
b34976b6 | 779 | bfd_boolean (*check_relocs) |
c39a58e6 AM |
780 | (bfd *abfd, struct bfd_link_info *info, asection *o, |
781 | const Elf_Internal_Rela *relocs); | |
252b5132 | 782 | |
85fbca6a NC |
783 | /* The CHECK_DIRECTIVES function is called once per input file by |
784 | the add_symbols phase of the ELF backend linker. The function | |
785 | must inspect the bfd and create any additional symbols according | |
786 | to any custom directives in the bfd. */ | |
787 | bfd_boolean (*check_directives) | |
788 | (bfd *abfd, struct bfd_link_info *info); | |
789 | ||
97fed1c9 JJ |
790 | /* The AS_NEEDED_CLEANUP function is called once per --as-needed |
791 | input file that was not needed by the add_symbols phase of the | |
792 | ELF backend linker. The function must undo any target specific | |
793 | changes in the symbol hash table. */ | |
794 | bfd_boolean (*as_needed_cleanup) | |
795 | (bfd *abfd, struct bfd_link_info *info); | |
796 | ||
252b5132 RH |
797 | /* The ADJUST_DYNAMIC_SYMBOL function is called by the ELF backend |
798 | linker for every symbol which is defined by a dynamic object and | |
799 | referenced by a regular object. This is called after all the | |
800 | input files have been seen, but before the SIZE_DYNAMIC_SECTIONS | |
801 | function has been called. The hash table entry should be | |
802 | bfd_link_hash_defined ore bfd_link_hash_defweak, and it should be | |
803 | defined in a section from a dynamic object. Dynamic object | |
804 | sections are not included in the final link, and this function is | |
805 | responsible for changing the value to something which the rest of | |
806 | the link can deal with. This will normally involve adding an | |
807 | entry to the .plt or .got or some such section, and setting the | |
808 | symbol to point to that. */ | |
b34976b6 | 809 | bfd_boolean (*elf_backend_adjust_dynamic_symbol) |
c39a58e6 | 810 | (struct bfd_link_info *info, struct elf_link_hash_entry *h); |
252b5132 RH |
811 | |
812 | /* The ALWAYS_SIZE_SECTIONS function is called by the backend linker | |
813 | after all the linker input files have been seen but before the | |
814 | section sizes have been set. This is called after | |
815 | ADJUST_DYNAMIC_SYMBOL, but before SIZE_DYNAMIC_SECTIONS. */ | |
b34976b6 | 816 | bfd_boolean (*elf_backend_always_size_sections) |
c39a58e6 | 817 | (bfd *output_bfd, struct bfd_link_info *info); |
252b5132 RH |
818 | |
819 | /* The SIZE_DYNAMIC_SECTIONS function is called by the ELF backend | |
820 | linker after all the linker input files have been seen but before | |
821 | the sections sizes have been set. This is called after | |
822 | ADJUST_DYNAMIC_SYMBOL has been called on all appropriate symbols. | |
823 | It is only called when linking against a dynamic object. It must | |
824 | set the sizes of the dynamic sections, and may fill in their | |
825 | contents as well. The generic ELF linker can handle the .dynsym, | |
826 | .dynstr and .hash sections. This function must handle the | |
827 | .interp section and any sections created by the | |
828 | CREATE_DYNAMIC_SECTIONS entry point. */ | |
b34976b6 | 829 | bfd_boolean (*elf_backend_size_dynamic_sections) |
c39a58e6 | 830 | (bfd *output_bfd, struct bfd_link_info *info); |
252b5132 | 831 | |
74541ad4 AM |
832 | /* Set TEXT_INDEX_SECTION and DATA_INDEX_SECTION, the output sections |
833 | we keep to use as a base for relocs and symbols. */ | |
834 | void (*elf_backend_init_index_section) | |
835 | (bfd *output_bfd, struct bfd_link_info *info); | |
836 | ||
252b5132 RH |
837 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
838 | to handle the relocations for a section. | |
839 | ||
840 | The relocs are always passed as Rela structures; if the section | |
841 | actually uses Rel structures, the r_addend field will always be | |
842 | zero. | |
843 | ||
844 | This function is responsible for adjust the section contents as | |
845 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 846 | relocatable output file) adjusting the reloc addend as |
252b5132 RH |
847 | necessary. |
848 | ||
849 | This function does not have to worry about setting the reloc | |
850 | address or the reloc symbol index. | |
851 | ||
852 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
853 | ||
854 | LOCAL_SECTIONS is an array giving the section in the input file | |
855 | corresponding to the st_shndx field of each local symbol. | |
856 | ||
857 | The global hash table entry for the global symbols can be found | |
858 | via elf_sym_hashes (input_bfd). | |
859 | ||
1049f94e | 860 | When generating relocatable output, this function must handle |
252b5132 RH |
861 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
862 | going to be the section symbol corresponding to the output | |
863 | section, which means that the addend must be adjusted | |
ece5ef60 AM |
864 | accordingly. |
865 | ||
866 | Returns FALSE on error, TRUE on success, 2 if successful and | |
867 | relocations should be written for this section. */ | |
868 | int (*elf_backend_relocate_section) | |
c39a58e6 AM |
869 | (bfd *output_bfd, struct bfd_link_info *info, bfd *input_bfd, |
870 | asection *input_section, bfd_byte *contents, Elf_Internal_Rela *relocs, | |
871 | Elf_Internal_Sym *local_syms, asection **local_sections); | |
252b5132 RH |
872 | |
873 | /* The FINISH_DYNAMIC_SYMBOL function is called by the ELF backend | |
874 | linker just before it writes a symbol out to the .dynsym section. | |
875 | The processor backend may make any required adjustment to the | |
876 | symbol. It may also take the opportunity to set contents of the | |
877 | dynamic sections. Note that FINISH_DYNAMIC_SYMBOL is called on | |
878 | all .dynsym symbols, while ADJUST_DYNAMIC_SYMBOL is only called | |
879 | on those symbols which are defined by a dynamic object. */ | |
b34976b6 | 880 | bfd_boolean (*elf_backend_finish_dynamic_symbol) |
c39a58e6 AM |
881 | (bfd *output_bfd, struct bfd_link_info *info, |
882 | struct elf_link_hash_entry *h, Elf_Internal_Sym *sym); | |
252b5132 RH |
883 | |
884 | /* The FINISH_DYNAMIC_SECTIONS function is called by the ELF backend | |
885 | linker just before it writes all the dynamic sections out to the | |
886 | output file. The FINISH_DYNAMIC_SYMBOL will have been called on | |
887 | all dynamic symbols. */ | |
b34976b6 | 888 | bfd_boolean (*elf_backend_finish_dynamic_sections) |
c39a58e6 | 889 | (bfd *output_bfd, struct bfd_link_info *info); |
252b5132 RH |
890 | |
891 | /* A function to do any beginning processing needed for the ELF file | |
892 | before building the ELF headers and computing file positions. */ | |
893 | void (*elf_backend_begin_write_processing) | |
c39a58e6 | 894 | (bfd *, struct bfd_link_info *); |
252b5132 RH |
895 | |
896 | /* A function to do any final processing needed for the ELF file | |
b34976b6 | 897 | before writing it out. The LINKER argument is TRUE if this BFD |
252b5132 RH |
898 | was created by the ELF backend linker. */ |
899 | void (*elf_backend_final_write_processing) | |
c39a58e6 | 900 | (bfd *, bfd_boolean linker); |
252b5132 RH |
901 | |
902 | /* This function is called by get_program_header_size. It should | |
903 | return the number of additional program segments which this BFD | |
904 | will need. It should return -1 on error. */ | |
dc810e39 | 905 | int (*elf_backend_additional_program_headers) |
a6b96beb | 906 | (bfd *, struct bfd_link_info *); |
252b5132 RH |
907 | |
908 | /* This function is called to modify an existing segment map in a | |
909 | backend specific fashion. */ | |
b34976b6 | 910 | bfd_boolean (*elf_backend_modify_segment_map) |
c84fca4d | 911 | (bfd *, struct bfd_link_info *); |
252b5132 | 912 | |
e36284ab AM |
913 | /* This function is called to modify program headers just before |
914 | they are written. */ | |
915 | bfd_boolean (*elf_backend_modify_program_headers) | |
916 | (bfd *, struct bfd_link_info *); | |
917 | ||
74f0fb50 AM |
918 | /* This function is called before section garbage collection to |
919 | mark entry symbol sections. */ | |
920 | void (*gc_keep) | |
921 | (struct bfd_link_info *); | |
922 | ||
64d03ab5 AM |
923 | /* This function is called during section garbage collection to |
924 | mark sections that define global symbols. */ | |
925 | bfd_boolean (*gc_mark_dynamic_ref) | |
74f0fb50 | 926 | (struct elf_link_hash_entry *, void *); |
64d03ab5 | 927 | |
252b5132 | 928 | /* This function is called during section gc to discover the section a |
1e2f5b6e | 929 | particular relocation refers to. */ |
6a5bb875 PB |
930 | elf_gc_mark_hook_fn gc_mark_hook; |
931 | ||
932 | /* This function, if defined, is called after the first gc marking pass | |
933 | to allow the backend to mark additional sections. */ | |
934 | bfd_boolean (*gc_mark_extra_sections) | |
74f0fb50 | 935 | (struct bfd_link_info *, elf_gc_mark_hook_fn); |
252b5132 RH |
936 | |
937 | /* This function, if defined, is called during the sweep phase of gc | |
938 | in order that a backend might update any data structures it might | |
939 | be maintaining. */ | |
b34976b6 | 940 | bfd_boolean (*gc_sweep_hook) |
74f0fb50 | 941 | (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *); |
252b5132 | 942 | |
e6c51ed4 NC |
943 | /* This function, if defined, is called after the ELF headers have |
944 | been created. This allows for things like the OS and ABI versions | |
945 | to be changed. */ | |
946 | void (*elf_backend_post_process_headers) | |
c39a58e6 | 947 | (bfd *, struct bfd_link_info *); |
e6c51ed4 | 948 | |
587ff49e RH |
949 | /* This function, if defined, prints a symbol to file and returns the |
950 | name of the symbol to be printed. It should return NULL to fall | |
951 | back to default symbol printing. */ | |
952 | const char *(*elf_backend_print_symbol_all) | |
c39a58e6 | 953 | (bfd *, void *, asymbol *); |
587ff49e RH |
954 | |
955 | /* This function, if defined, is called after all local symbols and | |
4cc11e76 | 956 | global symbols converted to locals are emitted into the symtab |
4e617b1e | 957 | section. It allows the backend to emit special local symbols |
587ff49e | 958 | not handled in the hash table. */ |
4e617b1e PB |
959 | bfd_boolean (*elf_backend_output_arch_local_syms) |
960 | (bfd *, struct bfd_link_info *, void *, | |
961 | bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *, | |
962 | struct elf_link_hash_entry *)); | |
963 | ||
964 | /* This function, if defined, is called after all symbols are emitted | |
965 | into the symtab section. It allows the backend to emit special | |
966 | global symbols not handled in the hash table. */ | |
b34976b6 | 967 | bfd_boolean (*elf_backend_output_arch_syms) |
c39a58e6 | 968 | (bfd *, struct bfd_link_info *, void *, |
754021d0 AM |
969 | bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *, |
970 | struct elf_link_hash_entry *)); | |
587ff49e | 971 | |
d4c88bbb | 972 | /* Copy any information related to dynamic linking from a pre-existing |
0a991dfe AM |
973 | symbol to a newly created symbol. Also called to copy flags and |
974 | other back-end info to a weakdef, in which case the symbol is not | |
975 | newly created and plt/got refcounts and dynamic indices should not | |
976 | be copied. */ | |
c61b8717 | 977 | void (*elf_backend_copy_indirect_symbol) |
fcfa13d2 | 978 | (struct bfd_link_info *, struct elf_link_hash_entry *, |
c39a58e6 | 979 | struct elf_link_hash_entry *); |
c61b8717 RH |
980 | |
981 | /* Modify any information related to dynamic linking such that the | |
982 | symbol is not exported. */ | |
983 | void (*elf_backend_hide_symbol) | |
c39a58e6 | 984 | (struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean); |
c61b8717 | 985 | |
508c3946 L |
986 | /* A function to do additional symbol fixup, called by |
987 | _bfd_elf_fix_symbol_flags. */ | |
988 | bfd_boolean (*elf_backend_fixup_symbol) | |
989 | (struct bfd_link_info *, struct elf_link_hash_entry *); | |
990 | ||
9bf7216d KK |
991 | /* Merge the backend specific symbol attribute. */ |
992 | void (*elf_backend_merge_symbol_attribute) | |
993 | (struct elf_link_hash_entry *, const Elf_Internal_Sym *, bfd_boolean, | |
994 | bfd_boolean); | |
995 | ||
ad9563d6 CM |
996 | /* This function, if defined, will return a string containing the |
997 | name of a target-specific dynamic tag. */ | |
998 | char *(*elf_backend_get_target_dtag) | |
999 | (bfd_vma); | |
1000 | ||
12ac1cf5 NC |
1001 | /* Decide whether an undefined symbol is special and can be ignored. |
1002 | This is the case for OPTIONAL symbols on IRIX. */ | |
1003 | bfd_boolean (*elf_backend_ignore_undef_symbol) | |
1004 | (struct elf_link_hash_entry *); | |
1005 | ||
9317eacc CM |
1006 | /* Emit relocations. Overrides default routine for emitting relocs, |
1007 | except during a relocatable link, or if all relocs are being emitted. */ | |
b34976b6 | 1008 | bfd_boolean (*elf_backend_emit_relocs) |
eac338cf PB |
1009 | (bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *, |
1010 | struct elf_link_hash_entry **); | |
9317eacc CM |
1011 | |
1012 | /* Count relocations. Not called for relocatable links | |
1013 | or if all relocs are being preserved in the output. */ | |
1014 | unsigned int (*elf_backend_count_relocs) | |
58217f29 | 1015 | (struct bfd_link_info *, asection *); |
9317eacc | 1016 | |
bb0082d6 | 1017 | /* This function, if defined, is called when an NT_PRSTATUS note is found |
183e98be | 1018 | in a core file. */ |
b34976b6 | 1019 | bfd_boolean (*elf_backend_grok_prstatus) |
c39a58e6 | 1020 | (bfd *, Elf_Internal_Note *); |
bb0082d6 AM |
1021 | |
1022 | /* This function, if defined, is called when an NT_PSINFO or NT_PRPSINFO | |
183e98be | 1023 | note is found in a core file. */ |
b34976b6 | 1024 | bfd_boolean (*elf_backend_grok_psinfo) |
c39a58e6 | 1025 | (bfd *, Elf_Internal_Note *); |
bb0082d6 | 1026 | |
183e98be AM |
1027 | /* This function, if defined, is called to write a note to a corefile. */ |
1028 | char *(*elf_backend_write_core_note) | |
1029 | (bfd *abfd, char *buf, int *bufsiz, int note_type, ...); | |
1030 | ||
db6751f2 | 1031 | /* This function returns class of a reloc type. */ |
f51e552e | 1032 | enum elf_reloc_type_class (*elf_backend_reloc_type_class) |
c39a58e6 | 1033 | (const Elf_Internal_Rela *); |
db6751f2 | 1034 | |
73d074b4 DJ |
1035 | /* This function, if defined, removes information about discarded functions |
1036 | from other sections which mention them. */ | |
b34976b6 | 1037 | bfd_boolean (*elf_backend_discard_info) |
c39a58e6 | 1038 | (bfd *, struct elf_reloc_cookie *, struct bfd_link_info *); |
73d074b4 DJ |
1039 | |
1040 | /* This function, if defined, signals that the function above has removed | |
1041 | the discarded relocations for this section. */ | |
b34976b6 | 1042 | bfd_boolean (*elf_backend_ignore_discarded_relocs) |
c39a58e6 | 1043 | (asection *); |
73d074b4 | 1044 | |
8a696751 AM |
1045 | /* What to do when ld finds relocations against symbols defined in |
1046 | discarded sections. */ | |
1047 | unsigned int (*action_discarded) | |
1048 | (asection *); | |
1049 | ||
8c946ed5 RS |
1050 | /* This function returns the width of FDE pointers in bytes, or 0 if |
1051 | that can't be determined for some reason. The default definition | |
1052 | goes by the bfd's EI_CLASS. */ | |
1053 | unsigned int (*elf_backend_eh_frame_address_size) | |
1054 | (bfd *, asection *); | |
1055 | ||
ec3391e7 AO |
1056 | /* These functions tell elf-eh-frame whether to attempt to turn |
1057 | absolute or lsda encodings into pc-relative ones. The default | |
1058 | definition enables these transformations. */ | |
1059 | bfd_boolean (*elf_backend_can_make_relative_eh_frame) | |
1060 | (bfd *, struct bfd_link_info *, asection *); | |
1061 | bfd_boolean (*elf_backend_can_make_lsda_relative_eh_frame) | |
1062 | (bfd *, struct bfd_link_info *, asection *); | |
1063 | ||
1064 | /* This function returns an encoding after computing the encoded | |
1065 | value (and storing it in ENCODED) for the given OFFSET into OSEC, | |
1066 | to be stored in at LOC_OFFSET into the LOC_SEC input section. | |
1067 | The default definition chooses a 32-bit PC-relative encoding. */ | |
1068 | bfd_byte (*elf_backend_encode_eh_address) | |
1069 | (bfd *abfd, struct bfd_link_info *info, | |
1070 | asection *osec, bfd_vma offset, | |
1071 | asection *loc_sec, bfd_vma loc_offset, | |
1072 | bfd_vma *encoded); | |
1073 | ||
73d074b4 | 1074 | /* This function, if defined, may write out the given section. |
b34976b6 AM |
1075 | Returns TRUE if it did so and FALSE if the caller should. */ |
1076 | bfd_boolean (*elf_backend_write_section) | |
c7b8f16e | 1077 | (bfd *, struct bfd_link_info *, asection *, bfd_byte *); |
73d074b4 | 1078 | |
c6e90b02 TS |
1079 | /* The level of IRIX compatibility we're striving for. |
1080 | MIPS ELF specific function. */ | |
1081 | irix_compat_t (*elf_backend_mips_irix_compat) | |
c39a58e6 | 1082 | (bfd *); |
c6e90b02 TS |
1083 | |
1084 | reloc_howto_type *(*elf_backend_mips_rtype_to_howto) | |
c39a58e6 | 1085 | (unsigned int, bfd_boolean); |
c6e90b02 | 1086 | |
252b5132 RH |
1087 | /* The swapping table to use when dealing with ECOFF information. |
1088 | Used for the MIPS ELF .mdebug section. */ | |
1089 | const struct ecoff_debug_swap *elf_backend_ecoff_debug_swap; | |
1090 | ||
8d6337fe RM |
1091 | /* This function implements `bfd_elf_bfd_from_remote_memory'; |
1092 | see elf.c, elfcode.h. */ | |
1093 | bfd *(*elf_backend_bfd_from_remote_memory) | |
c39a58e6 | 1094 | (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep, |
f075ee0c | 1095 | int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr, int len)); |
8d6337fe | 1096 | |
4c45e5c9 JJ |
1097 | /* This function is used by `_bfd_elf_get_synthetic_symtab'; |
1098 | see elf.c. */ | |
1099 | bfd_vma (*plt_sym_val) (bfd_vma, const asection *, const arelent *); | |
1100 | ||
a4d8e49b L |
1101 | /* Is symbol defined in common section? */ |
1102 | bfd_boolean (*common_definition) (Elf_Internal_Sym *); | |
1103 | ||
1104 | /* Return a common section index for section. */ | |
1105 | unsigned int (*common_section_index) (asection *); | |
1106 | ||
1107 | /* Return a common section for section. */ | |
1108 | asection *(*common_section) (asection *); | |
1109 | ||
1110 | /* Return TRUE if we can merge 2 definitions. */ | |
1111 | bfd_boolean (*merge_symbol) (struct bfd_link_info *, | |
1112 | struct elf_link_hash_entry **, | |
1113 | struct elf_link_hash_entry *, | |
1114 | Elf_Internal_Sym *, asection **, | |
1115 | bfd_vma *, unsigned int *, | |
1116 | bfd_boolean *, bfd_boolean *, | |
1117 | bfd_boolean *, bfd_boolean *, | |
1118 | bfd_boolean *, bfd_boolean *, | |
1119 | bfd_boolean *, bfd_boolean *, | |
1120 | bfd *, asection **, | |
1121 | bfd_boolean *, bfd_boolean *, | |
1122 | bfd_boolean *, bfd_boolean *, | |
1123 | bfd *, asection **); | |
1124 | ||
fdc90cb4 JJ |
1125 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
1126 | bfd_boolean (*elf_hash_symbol) (struct elf_link_hash_entry *); | |
1127 | ||
fcb93ecf PB |
1128 | /* Return TRUE if type is a function symbol type. */ |
1129 | bfd_boolean (*is_function_type) (unsigned int type); | |
1130 | ||
185d09ad L |
1131 | /* Used to handle bad SHF_LINK_ORDER input. */ |
1132 | bfd_error_handler_type link_order_error_handler; | |
1133 | ||
4c45e5c9 JJ |
1134 | /* Name of the PLT relocation section. */ |
1135 | const char *relplt_name; | |
1136 | ||
252b5132 RH |
1137 | /* Alternate EM_xxxx machine codes for this backend. */ |
1138 | int elf_machine_alt1; | |
1139 | int elf_machine_alt2; | |
1140 | ||
1141 | const struct elf_size_info *s; | |
1142 | ||
29ef7005 L |
1143 | /* An array of target specific special sections. */ |
1144 | const struct bfd_elf_special_section *special_sections; | |
1145 | ||
6f2f2c9d DJ |
1146 | /* The size in bytes of the header for the GOT. This includes the |
1147 | so-called reserved entries on some systems. */ | |
252b5132 | 1148 | bfd_vma got_header_size; |
252b5132 | 1149 | |
10455f89 HPN |
1150 | /* The size of the GOT entry for the symbol pointed to by H if non-NULL, |
1151 | otherwise by the local symbol with index SYMNDX in IBFD. */ | |
1152 | bfd_vma (*got_elt_size) (bfd *, struct bfd_link_info *, | |
1153 | struct elf_link_hash_entry *h, | |
1154 | bfd *ibfd, unsigned long symndx); | |
1155 | ||
104d59d1 JM |
1156 | /* The vendor name to use for a processor-standard attributes section. */ |
1157 | const char *obj_attrs_vendor; | |
1158 | ||
1159 | /* The section name to use for a processor-standard attributes section. */ | |
1160 | const char *obj_attrs_section; | |
1161 | ||
1162 | /* Return 1, 2 or 3 to indicate what type of arguments a | |
1163 | processor-specific tag takes. */ | |
1164 | int (*obj_attrs_arg_type) (int); | |
1165 | ||
1166 | /* The section type to use for an attributes section. */ | |
1167 | unsigned int obj_attrs_section_type; | |
1168 | ||
b34976b6 AM |
1169 | /* This is TRUE if the linker should act like collect and gather |
1170 | global constructors and destructors by name. This is TRUE for | |
86dc0f79 RH |
1171 | MIPS ELF because the Irix 5 tools can not handle the .init |
1172 | section. */ | |
1173 | unsigned collect : 1; | |
1174 | ||
b34976b6 AM |
1175 | /* This is TRUE if the linker should ignore changes to the type of a |
1176 | symbol. This is TRUE for MIPS ELF because some Irix 5 objects | |
86dc0f79 RH |
1177 | record undefined functions as STT_OBJECT although the definitions |
1178 | are STT_FUNC. */ | |
1179 | unsigned type_change_ok : 1; | |
1180 | ||
bf572ba0 MM |
1181 | /* Whether the backend may use REL relocations. (Some backends use |
1182 | both REL and RELA relocations, and this flag is set for those | |
1183 | backends.) */ | |
1184 | unsigned may_use_rel_p : 1; | |
60bcf0fa | 1185 | |
bf572ba0 MM |
1186 | /* Whether the backend may use RELA relocations. (Some backends use |
1187 | both REL and RELA relocations, and this flag is set for those | |
1188 | backends.) */ | |
1189 | unsigned may_use_rela_p : 1; | |
1190 | ||
1191 | /* Whether the default relocation type is RELA. If a backend with | |
1192 | this flag set wants REL relocations for a particular section, | |
1193 | it must note that explicitly. Similarly, if this flag is clear, | |
60bcf0fa NC |
1194 | and the backend wants RELA relocations for a particular |
1195 | section. */ | |
bf572ba0 MM |
1196 | unsigned default_use_rela_p : 1; |
1197 | ||
d35fd659 RS |
1198 | /* True if PLT and copy relocations should be RELA by default. */ |
1199 | unsigned rela_plts_and_copies_p : 1; | |
1200 | ||
b491616a AM |
1201 | /* Set if RELA relocations for a relocatable link can be handled by |
1202 | generic code. Backends that set this flag need do nothing in the | |
1203 | backend relocate_section routine for relocatable linking. */ | |
1204 | unsigned rela_normal : 1; | |
1205 | ||
b34976b6 | 1206 | /* TRUE if addresses "naturally" sign extend. This is used when |
86dc0f79 RH |
1207 | swapping in from Elf32 when BFD64. */ |
1208 | unsigned sign_extend_vma : 1; | |
1209 | ||
252b5132 RH |
1210 | unsigned want_got_plt : 1; |
1211 | unsigned plt_readonly : 1; | |
1212 | unsigned want_plt_sym : 1; | |
1213 | unsigned plt_not_loaded : 1; | |
1214 | unsigned plt_alignment : 4; | |
1215 | unsigned can_gc_sections : 1; | |
51b64d56 | 1216 | unsigned can_refcount : 1; |
2517a57f | 1217 | unsigned want_got_sym : 1; |
3018b441 | 1218 | unsigned want_dynbss : 1; |
6bfdb61b AM |
1219 | |
1220 | /* Targets which do not support physical addressing often require | |
1221 | that the p_paddr field in the section header to be set to zero. | |
1222 | This field indicates whether this behavior is required. */ | |
5e8d7549 | 1223 | unsigned want_p_paddr_set_to_zero : 1; |
6bfdb61b AM |
1224 | |
1225 | /* True if an object file lacking a .note.GNU-stack section | |
1226 | should be assumed to be requesting exec stack. At least one | |
1227 | other file in the link needs to have a .note.GNU-stack section | |
1228 | for a PT_GNU_STACK segment to be created. */ | |
1229 | unsigned default_execstack : 1; | |
252b5132 RH |
1230 | }; |
1231 | ||
1232 | /* Information stored for each BFD section in an ELF file. This | |
1233 | structure is allocated by elf_new_section_hook. */ | |
1234 | ||
1235 | struct bfd_elf_section_data | |
1236 | { | |
1237 | /* The ELF header for this section. */ | |
1238 | Elf_Internal_Shdr this_hdr; | |
0c715baa | 1239 | |
252b5132 RH |
1240 | /* The ELF header for the reloc section associated with this |
1241 | section, if any. */ | |
1242 | Elf_Internal_Shdr rel_hdr; | |
0c715baa | 1243 | |
252b5132 RH |
1244 | /* If there is a second reloc section associated with this section, |
1245 | as can happen on Irix 6, this field points to the header. */ | |
1246 | Elf_Internal_Shdr *rel_hdr2; | |
0c715baa | 1247 | |
23bc299b MM |
1248 | /* The number of relocations currently assigned to REL_HDR. */ |
1249 | unsigned int rel_count; | |
0c715baa | 1250 | |
23bc299b MM |
1251 | /* The number of relocations currently assigned to REL_HDR2. */ |
1252 | unsigned int rel_count2; | |
0c715baa | 1253 | |
6dc132d9 | 1254 | /* The ELF section number of this section. */ |
252b5132 | 1255 | int this_idx; |
0c715baa | 1256 | |
23bc299b MM |
1257 | /* The ELF section number of the reloc section indicated by |
1258 | REL_HDR if any. Only used for an output file. */ | |
252b5132 | 1259 | int rel_idx; |
0c715baa | 1260 | |
23bc299b MM |
1261 | /* The ELF section number of the reloc section indicated by |
1262 | REL_HDR2 if any. Only used for an output file. */ | |
1263 | int rel_idx2; | |
0c715baa | 1264 | |
f0abc2a1 AM |
1265 | /* Used by the backend linker when generating a shared library to |
1266 | record the dynamic symbol index for a section symbol | |
1267 | corresponding to this section. A value of 0 means that there is | |
1268 | no dynamic symbol for this section. */ | |
1269 | int dynindx; | |
1270 | ||
38ce5b11 L |
1271 | /* A pointer to the linked-to section for SHF_LINK_ORDER. */ |
1272 | asection *linked_to; | |
1273 | ||
252b5132 RH |
1274 | /* Used by the backend linker to store the symbol hash table entries |
1275 | associated with relocs against global symbols. */ | |
1276 | struct elf_link_hash_entry **rel_hashes; | |
0c715baa | 1277 | |
252b5132 RH |
1278 | /* A pointer to the swapped relocs. If the section uses REL relocs, |
1279 | rather than RELA, all the r_addend fields will be zero. This | |
1280 | pointer may be NULL. It is used by the backend linker. */ | |
1281 | Elf_Internal_Rela *relocs; | |
0c715baa | 1282 | |
f0abc2a1 AM |
1283 | /* A pointer to a linked list tracking dynamic relocs copied for |
1284 | local symbols. */ | |
c39a58e6 | 1285 | void *local_dynrel; |
0c715baa | 1286 | |
f0abc2a1 AM |
1287 | /* A pointer to the bfd section used for dynamic relocs. */ |
1288 | asection *sreloc; | |
0c715baa | 1289 | |
1126897b AM |
1290 | union { |
1291 | /* Group name, if this section is a member of a group. */ | |
1292 | const char *name; | |
1293 | ||
1294 | /* Group signature sym, if this is the SHT_GROUP section. */ | |
fc0a2244 | 1295 | struct bfd_symbol *id; |
1126897b | 1296 | } group; |
dbb410c3 | 1297 | |
b0956e01 AM |
1298 | /* For a member of a group, points to the SHT_GROUP section. |
1299 | NULL for the SHT_GROUP section itself and non-group sections. */ | |
3d7f7666 L |
1300 | asection *sec_group; |
1301 | ||
b0956e01 AM |
1302 | /* A linked list of member sections in the group. Circular when used by |
1303 | the linker. For the SHT_GROUP section, points at first member. */ | |
dbb410c3 AM |
1304 | asection *next_in_group; |
1305 | ||
9d0a14d3 RS |
1306 | /* The FDEs associated with this section. The u.fde.next_in_section |
1307 | field acts as a chain pointer. */ | |
1308 | struct eh_cie_fde *fde_list; | |
1309 | ||
f0abc2a1 | 1310 | /* A pointer used for various section optimizations. */ |
c39a58e6 | 1311 | void *sec_info; |
252b5132 RH |
1312 | }; |
1313 | ||
96982dc9 | 1314 | #define elf_section_data(sec) ((struct bfd_elf_section_data*)(sec)->used_by_bfd) |
38ce5b11 | 1315 | #define elf_linked_to_section(sec) (elf_section_data(sec)->linked_to) |
2f89ff8d L |
1316 | #define elf_section_type(sec) (elf_section_data(sec)->this_hdr.sh_type) |
1317 | #define elf_section_flags(sec) (elf_section_data(sec)->this_hdr.sh_flags) | |
1126897b AM |
1318 | #define elf_group_name(sec) (elf_section_data(sec)->group.name) |
1319 | #define elf_group_id(sec) (elf_section_data(sec)->group.id) | |
945906ff | 1320 | #define elf_next_in_group(sec) (elf_section_data(sec)->next_in_group) |
9d0a14d3 | 1321 | #define elf_fde_list(sec) (elf_section_data(sec)->fde_list) |
3d7f7666 | 1322 | #define elf_sec_group(sec) (elf_section_data(sec)->sec_group) |
252b5132 | 1323 | |
24718e3b | 1324 | #define xvec_get_elf_backend_data(xvec) \ |
f7231afc | 1325 | ((const struct elf_backend_data *) (xvec)->backend_data) |
24718e3b | 1326 | |
252b5132 | 1327 | #define get_elf_backend_data(abfd) \ |
24718e3b | 1328 | xvec_get_elf_backend_data ((abfd)->xvec) |
252b5132 | 1329 | |
45d6a902 AM |
1330 | /* This struct is used to pass information to routines called via |
1331 | elf_link_hash_traverse which must return failure. */ | |
1332 | ||
1333 | struct elf_info_failed | |
1334 | { | |
1335 | bfd_boolean failed; | |
1336 | struct bfd_link_info *info; | |
1337 | struct bfd_elf_version_tree *verdefs; | |
1338 | }; | |
1339 | ||
1340 | /* This structure is used to pass information to | |
1341 | _bfd_elf_link_assign_sym_version. */ | |
1342 | ||
1343 | struct elf_assign_sym_version_info | |
1344 | { | |
1345 | /* Output BFD. */ | |
1346 | bfd *output_bfd; | |
1347 | /* General link information. */ | |
1348 | struct bfd_link_info *info; | |
1349 | /* Version tree. */ | |
1350 | struct bfd_elf_version_tree *verdefs; | |
1351 | /* Whether we had a failure. */ | |
1352 | bfd_boolean failed; | |
1353 | }; | |
1354 | ||
1355 | /* This structure is used to pass information to | |
1356 | _bfd_elf_link_find_version_dependencies. */ | |
1357 | ||
1358 | struct elf_find_verdep_info | |
1359 | { | |
1360 | /* Output BFD. */ | |
1361 | bfd *output_bfd; | |
1362 | /* General link information. */ | |
1363 | struct bfd_link_info *info; | |
1364 | /* The number of dependencies. */ | |
1365 | unsigned int vers; | |
1366 | /* Whether we had a failure. */ | |
1367 | bfd_boolean failed; | |
1368 | }; | |
1369 | ||
104d59d1 JM |
1370 | /* The maximum number of known object attributes for any target. */ |
1371 | #define NUM_KNOWN_OBJ_ATTRIBUTES 32 | |
1372 | ||
1373 | /* The value of an object attribute. type & 1 indicates whether there | |
1374 | is an integer value; type & 2 indicates whether there is a string | |
1375 | value. */ | |
1376 | ||
1377 | typedef struct obj_attribute | |
1378 | { | |
1379 | int type; | |
1380 | unsigned int i; | |
1381 | char *s; | |
1382 | } obj_attribute; | |
1383 | ||
1384 | typedef struct obj_attribute_list | |
1385 | { | |
1386 | struct obj_attribute_list *next; | |
1387 | int tag; | |
1388 | obj_attribute attr; | |
1389 | } obj_attribute_list; | |
1390 | ||
1391 | /* Object attributes may either be defined by the processor ABI, index | |
1392 | OBJ_ATTR_PROC in the *_obj_attributes arrays, or be GNU-specific | |
1393 | (and possibly also processor-specific), index OBJ_ATTR_GNU. */ | |
1394 | #define OBJ_ATTR_PROC 0 | |
1395 | #define OBJ_ATTR_GNU 1 | |
1396 | #define OBJ_ATTR_FIRST OBJ_ATTR_PROC | |
1397 | #define OBJ_ATTR_LAST OBJ_ATTR_GNU | |
1398 | ||
1399 | /* The following object attribute tags are taken as generic, for all | |
1400 | targets and for "gnu" where there is no target standard. */ | |
1401 | enum | |
1402 | { | |
1403 | Tag_NULL = 0, | |
1404 | Tag_File = 1, | |
1405 | Tag_Section = 2, | |
1406 | Tag_Symbol = 3, | |
1407 | Tag_compatibility = 32 | |
1408 | }; | |
1409 | ||
0ffa91dd NC |
1410 | /* Enum used to identify target specific extensions to the elf_obj_tdata |
1411 | structure. Note the enums deliberately start from 1 so that we can | |
1412 | detect an uninitialized field. The generic value is last so that | |
1413 | additions to this enum do not need to modify more than one line. */ | |
1414 | enum elf_object_id | |
1415 | { | |
1416 | ALPHA_ELF_TDATA = 1, | |
1417 | ARM_ELF_TDATA, | |
0c8d6e5c | 1418 | HPPA_ELF_TDATA, |
0ffa91dd | 1419 | I386_ELF_TDATA, |
d5eaccd7 | 1420 | MIPS_ELF_TDATA, |
0ffa91dd NC |
1421 | PPC32_ELF_TDATA, |
1422 | PPC64_ELF_TDATA, | |
1423 | S390_ELF_TDATA, | |
1424 | SH_ELF_TDATA, | |
1425 | SPARC_ELF_TDATA, | |
1426 | X86_64_ELF_TDATA, | |
28dbbc02 | 1427 | XTENSA_ELF_TDATA, |
0ffa91dd NC |
1428 | GENERIC_ELF_TDATA |
1429 | }; | |
1430 | ||
252b5132 RH |
1431 | /* Some private data is stashed away for future use using the tdata pointer |
1432 | in the bfd structure. */ | |
1433 | ||
1434 | struct elf_obj_tdata | |
1435 | { | |
1436 | Elf_Internal_Ehdr elf_header[1]; /* Actual data, but ref like ptr */ | |
1437 | Elf_Internal_Shdr **elf_sect_ptr; | |
1438 | Elf_Internal_Phdr *phdr; | |
1439 | struct elf_segment_map *segment_map; | |
2b0f7ef9 | 1440 | struct elf_strtab_hash *strtab_ptr; |
252b5132 RH |
1441 | int num_locals; |
1442 | int num_globals; | |
9ad5cbcf | 1443 | unsigned int num_elf_sections; /* elf_sect_ptr size */ |
4e89ac30 | 1444 | int num_section_syms; |
252b5132 RH |
1445 | asymbol **section_syms; /* STT_SECTION symbols for each section */ |
1446 | Elf_Internal_Shdr symtab_hdr; | |
1447 | Elf_Internal_Shdr shstrtab_hdr; | |
1448 | Elf_Internal_Shdr strtab_hdr; | |
1449 | Elf_Internal_Shdr dynsymtab_hdr; | |
1450 | Elf_Internal_Shdr dynstrtab_hdr; | |
1451 | Elf_Internal_Shdr dynversym_hdr; | |
1452 | Elf_Internal_Shdr dynverref_hdr; | |
1453 | Elf_Internal_Shdr dynverdef_hdr; | |
9ad5cbcf | 1454 | Elf_Internal_Shdr symtab_shndx_hdr; |
252b5132 RH |
1455 | unsigned int symtab_section, shstrtab_section; |
1456 | unsigned int strtab_section, dynsymtab_section; | |
9ad5cbcf | 1457 | unsigned int symtab_shndx_section; |
252b5132 RH |
1458 | unsigned int dynversym_section, dynverdef_section, dynverref_section; |
1459 | file_ptr next_file_pos; | |
dbb410c3 AM |
1460 | bfd_vma gp; /* The gp value */ |
1461 | unsigned int gp_size; /* The gp size */ | |
1462 | ||
3e932841 | 1463 | /* Information grabbed from an elf core file. */ |
252b5132 RH |
1464 | int core_signal; |
1465 | int core_pid; | |
1466 | int core_lwpid; | |
1467 | char* core_program; | |
1468 | char* core_command; | |
1469 | ||
252b5132 RH |
1470 | /* A mapping from external symbols to entries in the linker hash |
1471 | table, used when linking. This is indexed by the symbol index | |
1472 | minus the sh_info field of the symbol table header. */ | |
1473 | struct elf_link_hash_entry **sym_hashes; | |
1474 | ||
5cab59f6 AM |
1475 | /* Track usage and final offsets of GOT entries for local symbols. |
1476 | This array is indexed by symbol index. Elements are used | |
1477 | identically to "got" in struct elf_link_hash_entry. */ | |
252b5132 RH |
1478 | union |
1479 | { | |
1480 | bfd_signed_vma *refcounts; | |
1481 | bfd_vma *offsets; | |
5cab59f6 | 1482 | struct got_entry **ents; |
252b5132 RH |
1483 | } local_got; |
1484 | ||
252b5132 RH |
1485 | /* The linker ELF emulation code needs to let the backend ELF linker |
1486 | know what filename should be used for a dynamic object if the | |
1487 | dynamic object is found using a search. The emulation code then | |
1488 | sometimes needs to know what name was actually used. Until the | |
1489 | file has been added to the linker symbol table, this field holds | |
1490 | the name the linker wants. After it has been added, it holds the | |
1491 | name actually used, which will be the DT_SONAME entry if there is | |
1492 | one. */ | |
1493 | const char *dt_name; | |
1494 | ||
252b5132 RH |
1495 | /* Records the result of `get_program_header_size'. */ |
1496 | bfd_size_type program_header_size; | |
1497 | ||
1498 | /* Used by find_nearest_line entry point. */ | |
c39a58e6 | 1499 | void *line_info; |
252b5132 RH |
1500 | |
1501 | /* Used by MIPS ELF find_nearest_line entry point. The structure | |
1502 | could be included directly in this one, but there's no point to | |
1503 | wasting the memory just for the infrequently called | |
1504 | find_nearest_line. */ | |
1505 | struct mips_elf_find_line *find_line_info; | |
1506 | ||
3e932841 | 1507 | /* A place to stash dwarf1 info for this bfd. */ |
252b5132 RH |
1508 | struct dwarf1_debug *dwarf1_find_line_info; |
1509 | ||
3e932841 | 1510 | /* A place to stash dwarf2 info for this bfd. */ |
c39a58e6 | 1511 | void *dwarf2_find_line_info; |
252b5132 RH |
1512 | |
1513 | /* An array of stub sections indexed by symbol number, used by the | |
1514 | MIPS ELF linker. FIXME: We should figure out some way to only | |
1515 | include this field for a MIPS ELF target. */ | |
1516 | asection **local_stubs; | |
b9d58d71 | 1517 | asection **local_call_stubs; |
252b5132 | 1518 | |
65765700 JJ |
1519 | /* Used to determine if PT_GNU_EH_FRAME segment header should be |
1520 | created. */ | |
126495ed AM |
1521 | asection *eh_frame_hdr; |
1522 | ||
4a43e768 AM |
1523 | Elf_Internal_Shdr **group_sect_ptr; |
1524 | int num_group; | |
65765700 | 1525 | |
252b5132 RH |
1526 | /* Number of symbol version definitions we are about to emit. */ |
1527 | unsigned int cverdefs; | |
1528 | ||
1529 | /* Number of symbol version references we are about to emit. */ | |
1530 | unsigned int cverrefs; | |
1531 | ||
9ee5e499 | 1532 | /* Segment flags for the PT_GNU_STACK segment. */ |
3472e2e9 | 1533 | unsigned int stack_flags; |
9ee5e499 | 1534 | |
252b5132 RH |
1535 | /* Symbol version definitions in external objects. */ |
1536 | Elf_Internal_Verdef *verdef; | |
1537 | ||
1538 | /* Symbol version references to external objects. */ | |
1539 | Elf_Internal_Verneed *verref; | |
1540 | ||
b305ef96 UC |
1541 | /* The Irix 5 support uses two virtual sections, which represent |
1542 | text/data symbols defined in dynamic objects. */ | |
1543 | asymbol *elf_data_symbol; | |
1544 | asymbol *elf_text_symbol; | |
1545 | asection *elf_data_section; | |
1546 | asection *elf_text_section; | |
4a43e768 | 1547 | |
9d0a14d3 RS |
1548 | /* A pointer to the .eh_frame section. */ |
1549 | asection *eh_frame_section; | |
1550 | ||
4a43e768 AM |
1551 | /* Whether a dyanmic object was specified normally on the linker |
1552 | command line, or was specified when --as-needed was in effect, | |
1553 | or was found via a DT_NEEDED entry. */ | |
1554 | enum dynamic_lib_link_class dyn_lib_class; | |
1555 | ||
1556 | /* This is set to TRUE if the object was created by the backend | |
1557 | linker. */ | |
1558 | bfd_boolean linker; | |
1559 | ||
1560 | /* Irix 5 often screws up the symbol table, sorting local symbols | |
1561 | after global symbols. This flag is set if the symbol table in | |
1562 | this BFD appears to be screwed up. If it is, we ignore the | |
1563 | sh_info field in the symbol table header, and always read all the | |
1564 | symbols. */ | |
1565 | bfd_boolean bad_symtab; | |
1566 | ||
1567 | /* Used to determine if the e_flags field has been initialized */ | |
1568 | bfd_boolean flags_init; | |
c0f00686 L |
1569 | |
1570 | /* Symbol buffer. */ | |
c15f73f9 | 1571 | void *symbuf; |
104d59d1 JM |
1572 | |
1573 | obj_attribute known_obj_attributes[2][NUM_KNOWN_OBJ_ATTRIBUTES]; | |
1574 | obj_attribute_list *other_obj_attributes[2]; | |
20a761b5 | 1575 | |
bfb53a4f RM |
1576 | /* Called at the end of _bfd_elf_write_object_contents if not NULL. */ |
1577 | bfd_boolean (*after_write_object_contents) (bfd *); | |
1578 | void *after_write_object_contents_info; | |
718175fa JK |
1579 | |
1580 | /* NT_GNU_BUILD_ID note type. */ | |
1581 | bfd_size_type build_id_size; | |
1582 | bfd_byte *build_id; | |
0ffa91dd NC |
1583 | |
1584 | /* An identifier used to distinguish different target | |
1585 | specific extensions to this structure. */ | |
1586 | enum elf_object_id object_id; | |
252b5132 RH |
1587 | }; |
1588 | ||
1589 | #define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data) | |
0ffa91dd NC |
1590 | |
1591 | #define elf_object_id(bfd) (elf_tdata(bfd) -> object_id) | |
1592 | #define elf_program_header_size(bfd) (elf_tdata(bfd) -> program_header_size) | |
252b5132 RH |
1593 | #define elf_elfheader(bfd) (elf_tdata(bfd) -> elf_header) |
1594 | #define elf_elfsections(bfd) (elf_tdata(bfd) -> elf_sect_ptr) | |
9ad5cbcf | 1595 | #define elf_numsections(bfd) (elf_tdata(bfd) -> num_elf_sections) |
252b5132 RH |
1596 | #define elf_shstrtab(bfd) (elf_tdata(bfd) -> strtab_ptr) |
1597 | #define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section) | |
9ad5cbcf | 1598 | #define elf_symtab_shndx(bfd) (elf_tdata(bfd) -> symtab_shndx_section) |
0ffa91dd | 1599 | #define elf_symtab_hdr(bfd) (elf_tdata(bfd) -> symtab_hdr) |
252b5132 RH |
1600 | #define elf_dynsymtab(bfd) (elf_tdata(bfd) -> dynsymtab_section) |
1601 | #define elf_dynversym(bfd) (elf_tdata(bfd) -> dynversym_section) | |
1602 | #define elf_dynverdef(bfd) (elf_tdata(bfd) -> dynverdef_section) | |
1603 | #define elf_dynverref(bfd) (elf_tdata(bfd) -> dynverref_section) | |
9d0a14d3 RS |
1604 | #define elf_eh_frame_section(bfd) \ |
1605 | (elf_tdata(bfd) -> eh_frame_section) | |
252b5132 RH |
1606 | #define elf_num_locals(bfd) (elf_tdata(bfd) -> num_locals) |
1607 | #define elf_num_globals(bfd) (elf_tdata(bfd) -> num_globals) | |
1608 | #define elf_section_syms(bfd) (elf_tdata(bfd) -> section_syms) | |
4e89ac30 | 1609 | #define elf_num_section_syms(bfd) (elf_tdata(bfd) -> num_section_syms) |
252b5132 RH |
1610 | #define core_prpsinfo(bfd) (elf_tdata(bfd) -> prpsinfo) |
1611 | #define core_prstatus(bfd) (elf_tdata(bfd) -> prstatus) | |
1612 | #define elf_gp(bfd) (elf_tdata(bfd) -> gp) | |
1613 | #define elf_gp_size(bfd) (elf_tdata(bfd) -> gp_size) | |
1614 | #define elf_sym_hashes(bfd) (elf_tdata(bfd) -> sym_hashes) | |
1615 | #define elf_local_got_refcounts(bfd) (elf_tdata(bfd) -> local_got.refcounts) | |
1616 | #define elf_local_got_offsets(bfd) (elf_tdata(bfd) -> local_got.offsets) | |
5cab59f6 | 1617 | #define elf_local_got_ents(bfd) (elf_tdata(bfd) -> local_got.ents) |
252b5132 | 1618 | #define elf_dt_name(bfd) (elf_tdata(bfd) -> dt_name) |
4a43e768 | 1619 | #define elf_dyn_lib_class(bfd) (elf_tdata(bfd) -> dyn_lib_class) |
252b5132 RH |
1620 | #define elf_bad_symtab(bfd) (elf_tdata(bfd) -> bad_symtab) |
1621 | #define elf_flags_init(bfd) (elf_tdata(bfd) -> flags_init) | |
104d59d1 JM |
1622 | #define elf_known_obj_attributes(bfd) (elf_tdata (bfd) -> known_obj_attributes) |
1623 | #define elf_other_obj_attributes(bfd) (elf_tdata (bfd) -> other_obj_attributes) | |
1624 | #define elf_known_obj_attributes_proc(bfd) \ | |
1625 | (elf_known_obj_attributes (bfd) [OBJ_ATTR_PROC]) | |
1626 | #define elf_other_obj_attributes_proc(bfd) \ | |
1627 | (elf_other_obj_attributes (bfd) [OBJ_ATTR_PROC]) | |
252b5132 RH |
1628 | \f |
1629 | extern void _bfd_elf_swap_verdef_in | |
c39a58e6 | 1630 | (bfd *, const Elf_External_Verdef *, Elf_Internal_Verdef *); |
252b5132 | 1631 | extern void _bfd_elf_swap_verdef_out |
c39a58e6 | 1632 | (bfd *, const Elf_Internal_Verdef *, Elf_External_Verdef *); |
252b5132 | 1633 | extern void _bfd_elf_swap_verdaux_in |
c39a58e6 | 1634 | (bfd *, const Elf_External_Verdaux *, Elf_Internal_Verdaux *); |
252b5132 | 1635 | extern void _bfd_elf_swap_verdaux_out |
c39a58e6 | 1636 | (bfd *, const Elf_Internal_Verdaux *, Elf_External_Verdaux *); |
252b5132 | 1637 | extern void _bfd_elf_swap_verneed_in |
c39a58e6 | 1638 | (bfd *, const Elf_External_Verneed *, Elf_Internal_Verneed *); |
252b5132 | 1639 | extern void _bfd_elf_swap_verneed_out |
c39a58e6 | 1640 | (bfd *, const Elf_Internal_Verneed *, Elf_External_Verneed *); |
252b5132 | 1641 | extern void _bfd_elf_swap_vernaux_in |
c39a58e6 | 1642 | (bfd *, const Elf_External_Vernaux *, Elf_Internal_Vernaux *); |
252b5132 | 1643 | extern void _bfd_elf_swap_vernaux_out |
c39a58e6 | 1644 | (bfd *, const Elf_Internal_Vernaux *, Elf_External_Vernaux *); |
252b5132 | 1645 | extern void _bfd_elf_swap_versym_in |
c39a58e6 | 1646 | (bfd *, const Elf_External_Versym *, Elf_Internal_Versym *); |
252b5132 | 1647 | extern void _bfd_elf_swap_versym_out |
c39a58e6 | 1648 | (bfd *, const Elf_Internal_Versym *, Elf_External_Versym *); |
252b5132 | 1649 | |
cb33740c | 1650 | extern unsigned int _bfd_elf_section_from_bfd_section |
c39a58e6 | 1651 | (bfd *, asection *); |
252b5132 | 1652 | extern char *bfd_elf_string_from_elf_section |
c39a58e6 | 1653 | (bfd *, unsigned, unsigned); |
dc810e39 | 1654 | extern char *bfd_elf_get_str_section |
c39a58e6 | 1655 | (bfd *, unsigned); |
6cdc0ccc | 1656 | extern Elf_Internal_Sym *bfd_elf_get_elf_syms |
c39a58e6 AM |
1657 | (bfd *, Elf_Internal_Shdr *, size_t, size_t, Elf_Internal_Sym *, void *, |
1658 | Elf_External_Sym_Shndx *); | |
0e2cfdce | 1659 | extern const char *bfd_elf_sym_name |
26c61ae5 | 1660 | (bfd *, Elf_Internal_Shdr *, Elf_Internal_Sym *, asection *); |
252b5132 | 1661 | |
b34976b6 | 1662 | extern bfd_boolean _bfd_elf_copy_private_bfd_data |
c39a58e6 | 1663 | (bfd *, bfd *); |
b34976b6 | 1664 | extern bfd_boolean _bfd_elf_print_private_bfd_data |
c39a58e6 | 1665 | (bfd *, void *); |
dc810e39 | 1666 | extern void bfd_elf_print_symbol |
c39a58e6 | 1667 | (bfd *, void *, asymbol *, bfd_print_symbol_type); |
dc810e39 | 1668 | |
8c946ed5 RS |
1669 | extern unsigned int _bfd_elf_eh_frame_address_size |
1670 | (bfd *, asection *); | |
ec3391e7 AO |
1671 | extern bfd_byte _bfd_elf_encode_eh_address |
1672 | (bfd *abfd, struct bfd_link_info *info, asection *osec, bfd_vma offset, | |
1673 | asection *loc_sec, bfd_vma loc_offset, bfd_vma *encoded); | |
1674 | extern bfd_boolean _bfd_elf_can_make_relative | |
1675 | (bfd *input_bfd, struct bfd_link_info *info, asection *eh_frame_section); | |
1676 | ||
dc810e39 | 1677 | extern enum elf_reloc_type_class _bfd_elf_reloc_type_class |
c39a58e6 | 1678 | (const Elf_Internal_Rela *); |
f8df10f4 | 1679 | extern bfd_vma _bfd_elf_rela_local_sym |
8517fae7 | 1680 | (bfd *, Elf_Internal_Sym *, asection **, Elf_Internal_Rela *); |
c629eae0 | 1681 | extern bfd_vma _bfd_elf_rel_local_sym |
c39a58e6 | 1682 | (bfd *, Elf_Internal_Sym *, asection **, bfd_vma); |
c629eae0 | 1683 | extern bfd_vma _bfd_elf_section_offset |
c39a58e6 | 1684 | (bfd *, struct bfd_link_info *, asection *, bfd_vma); |
db6751f2 | 1685 | |
dc810e39 | 1686 | extern unsigned long bfd_elf_hash |
c39a58e6 | 1687 | (const char *); |
fdc90cb4 JJ |
1688 | extern unsigned long bfd_elf_gnu_hash |
1689 | (const char *); | |
252b5132 | 1690 | |
dc810e39 | 1691 | extern bfd_reloc_status_type bfd_elf_generic_reloc |
c39a58e6 | 1692 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
0ffa91dd NC |
1693 | extern bfd_boolean bfd_elf_allocate_object |
1694 | (bfd *, size_t, enum elf_object_id); | |
1695 | extern bfd_boolean bfd_elf_make_generic_object | |
c39a58e6 | 1696 | (bfd *); |
b34976b6 | 1697 | extern bfd_boolean bfd_elf_mkcorefile |
c39a58e6 | 1698 | (bfd *); |
dc810e39 | 1699 | extern Elf_Internal_Shdr *bfd_elf_find_section |
c39a58e6 | 1700 | (bfd *, char *); |
b34976b6 | 1701 | extern bfd_boolean _bfd_elf_make_section_from_shdr |
6dc132d9 | 1702 | (bfd *, Elf_Internal_Shdr *, const char *, int); |
b34976b6 | 1703 | extern bfd_boolean _bfd_elf_make_section_from_phdr |
c39a58e6 | 1704 | (bfd *, Elf_Internal_Phdr *, int, const char *); |
252b5132 | 1705 | extern struct bfd_hash_entry *_bfd_elf_link_hash_newfunc |
c39a58e6 | 1706 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); |
252b5132 | 1707 | extern struct bfd_link_hash_table *_bfd_elf_link_hash_table_create |
c39a58e6 | 1708 | (bfd *); |
c61b8717 | 1709 | extern void _bfd_elf_link_hash_copy_indirect |
fcfa13d2 | 1710 | (struct bfd_link_info *, struct elf_link_hash_entry *, |
c39a58e6 | 1711 | struct elf_link_hash_entry *); |
c61b8717 | 1712 | extern void _bfd_elf_link_hash_hide_symbol |
c39a58e6 | 1713 | (struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean); |
508c3946 L |
1714 | extern bfd_boolean _bfd_elf_link_hash_fixup_symbol |
1715 | (struct bfd_link_info *, struct elf_link_hash_entry *); | |
b34976b6 | 1716 | extern bfd_boolean _bfd_elf_link_hash_table_init |
c39a58e6 AM |
1717 | (struct elf_link_hash_table *, bfd *, |
1718 | struct bfd_hash_entry *(*) | |
66eb6687 AM |
1719 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *), |
1720 | unsigned int); | |
b34976b6 | 1721 | extern bfd_boolean _bfd_elf_slurp_version_tables |
fc0e6df6 | 1722 | (bfd *, bfd_boolean); |
b34976b6 | 1723 | extern bfd_boolean _bfd_elf_merge_sections |
c39a58e6 | 1724 | (bfd *, struct bfd_link_info *); |
ecca9871 L |
1725 | extern bfd_boolean _bfd_elf_match_sections_by_type |
1726 | (bfd *, const asection *, bfd *, const asection *); | |
72adc230 AM |
1727 | extern bfd_boolean bfd_elf_is_group_section |
1728 | (bfd *, const struct bfd_section *); | |
082b7297 | 1729 | extern void _bfd_elf_section_already_linked |
c0f00686 | 1730 | (bfd *, struct bfd_section *, struct bfd_link_info *); |
1126897b | 1731 | extern void bfd_elf_set_group_contents |
c39a58e6 | 1732 | (bfd *, asection *, void *); |
01b3c8ab | 1733 | extern asection *_bfd_elf_check_kept_section |
c0f00686 | 1734 | (asection *, struct bfd_link_info *); |
2d653fc7 | 1735 | extern void _bfd_elf_link_just_syms |
c39a58e6 | 1736 | (asection *, struct bfd_link_info *); |
80fccad2 BW |
1737 | extern bfd_boolean _bfd_elf_copy_private_header_data |
1738 | (bfd *, bfd *); | |
b34976b6 | 1739 | extern bfd_boolean _bfd_elf_copy_private_symbol_data |
c39a58e6 | 1740 | (bfd *, asymbol *, bfd *, asymbol *); |
ccd2ec6a L |
1741 | #define _bfd_generic_init_private_section_data \ |
1742 | _bfd_elf_init_private_section_data | |
1743 | extern bfd_boolean _bfd_elf_init_private_section_data | |
1744 | (bfd *, asection *, bfd *, asection *, struct bfd_link_info *); | |
b34976b6 | 1745 | extern bfd_boolean _bfd_elf_copy_private_section_data |
c39a58e6 | 1746 | (bfd *, asection *, bfd *, asection *); |
b34976b6 | 1747 | extern bfd_boolean _bfd_elf_write_object_contents |
c39a58e6 | 1748 | (bfd *); |
b34976b6 | 1749 | extern bfd_boolean _bfd_elf_write_corefile_contents |
c39a58e6 | 1750 | (bfd *); |
b34976b6 | 1751 | extern bfd_boolean _bfd_elf_set_section_contents |
0f867abe | 1752 | (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type); |
dc810e39 | 1753 | extern long _bfd_elf_get_symtab_upper_bound |
c39a58e6 | 1754 | (bfd *); |
6cee3f79 | 1755 | extern long _bfd_elf_canonicalize_symtab |
c39a58e6 | 1756 | (bfd *, asymbol **); |
dc810e39 | 1757 | extern long _bfd_elf_get_dynamic_symtab_upper_bound |
c39a58e6 | 1758 | (bfd *); |
dc810e39 | 1759 | extern long _bfd_elf_canonicalize_dynamic_symtab |
c39a58e6 | 1760 | (bfd *, asymbol **); |
4c45e5c9 | 1761 | extern long _bfd_elf_get_synthetic_symtab |
c9727e01 | 1762 | (bfd *, long, asymbol **, long, asymbol **, asymbol **); |
dc810e39 | 1763 | extern long _bfd_elf_get_reloc_upper_bound |
c39a58e6 | 1764 | (bfd *, sec_ptr); |
dc810e39 | 1765 | extern long _bfd_elf_canonicalize_reloc |
c39a58e6 | 1766 | (bfd *, sec_ptr, arelent **, asymbol **); |
dc810e39 | 1767 | extern long _bfd_elf_get_dynamic_reloc_upper_bound |
c39a58e6 | 1768 | (bfd *); |
dc810e39 | 1769 | extern long _bfd_elf_canonicalize_dynamic_reloc |
c39a58e6 | 1770 | (bfd *, arelent **, asymbol **); |
dc810e39 | 1771 | extern asymbol *_bfd_elf_make_empty_symbol |
c39a58e6 | 1772 | (bfd *); |
dc810e39 | 1773 | extern void _bfd_elf_get_symbol_info |
c39a58e6 | 1774 | (bfd *, asymbol *, symbol_info *); |
b34976b6 | 1775 | extern bfd_boolean _bfd_elf_is_local_label_name |
c39a58e6 | 1776 | (bfd *, const char *); |
dc810e39 | 1777 | extern alent *_bfd_elf_get_lineno |
c39a58e6 | 1778 | (bfd *, asymbol *); |
b34976b6 | 1779 | extern bfd_boolean _bfd_elf_set_arch_mach |
c39a58e6 | 1780 | (bfd *, enum bfd_architecture, unsigned long); |
b34976b6 | 1781 | extern bfd_boolean _bfd_elf_find_nearest_line |
c39a58e6 AM |
1782 | (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **, |
1783 | unsigned int *); | |
5420f73d L |
1784 | extern bfd_boolean _bfd_elf_find_line |
1785 | (bfd *, asymbol **, asymbol *, const char **, unsigned int *); | |
1786 | #define _bfd_generic_find_line _bfd_elf_find_line | |
4ab527b0 FF |
1787 | extern bfd_boolean _bfd_elf_find_inliner_info |
1788 | (bfd *, const char **, const char **, unsigned int *); | |
252b5132 RH |
1789 | #define _bfd_elf_read_minisymbols _bfd_generic_read_minisymbols |
1790 | #define _bfd_elf_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
dc810e39 | 1791 | extern int _bfd_elf_sizeof_headers |
a6b96beb | 1792 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1793 | extern bfd_boolean _bfd_elf_new_section_hook |
c39a58e6 | 1794 | (bfd *, asection *); |
b34976b6 | 1795 | extern bfd_boolean _bfd_elf_init_reloc_shdr |
c39a58e6 | 1796 | (bfd *, Elf_Internal_Shdr *, asection *, bfd_boolean); |
551b43fd AM |
1797 | extern const struct bfd_elf_special_section *_bfd_elf_get_special_section |
1798 | (const char *, const struct bfd_elf_special_section *, unsigned int); | |
7dcb9820 | 1799 | extern const struct bfd_elf_special_section *_bfd_elf_get_sec_type_attr |
551b43fd | 1800 | (bfd *, asection *); |
252b5132 RH |
1801 | |
1802 | /* If the target doesn't have reloc handling written yet: */ | |
dc810e39 | 1803 | extern void _bfd_elf_no_info_to_howto |
c39a58e6 | 1804 | (bfd *, arelent *, Elf_Internal_Rela *); |
dc810e39 | 1805 | |
b34976b6 | 1806 | extern bfd_boolean bfd_section_from_shdr |
c39a58e6 | 1807 | (bfd *, unsigned int shindex); |
b34976b6 | 1808 | extern bfd_boolean bfd_section_from_phdr |
c39a58e6 | 1809 | (bfd *, Elf_Internal_Phdr *, int); |
dc810e39 AM |
1810 | |
1811 | extern int _bfd_elf_symbol_from_bfd_symbol | |
c39a58e6 | 1812 | (bfd *, asymbol **); |
dc810e39 | 1813 | |
ec338859 | 1814 | extern asection *bfd_section_from_r_symndx |
c39a58e6 | 1815 | (bfd *, struct sym_sec_cache *, asection *, unsigned long); |
dc810e39 | 1816 | extern asection *bfd_section_from_elf_index |
c39a58e6 | 1817 | (bfd *, unsigned int); |
dc810e39 | 1818 | extern struct bfd_strtab_hash *_bfd_elf_stringtab_init |
c39a58e6 | 1819 | (void); |
2b0f7ef9 JJ |
1820 | |
1821 | extern struct elf_strtab_hash * _bfd_elf_strtab_init | |
c39a58e6 | 1822 | (void); |
2b0f7ef9 | 1823 | extern void _bfd_elf_strtab_free |
c39a58e6 | 1824 | (struct elf_strtab_hash *); |
2b0f7ef9 | 1825 | extern bfd_size_type _bfd_elf_strtab_add |
c39a58e6 | 1826 | (struct elf_strtab_hash *, const char *, bfd_boolean); |
2b0f7ef9 | 1827 | extern void _bfd_elf_strtab_addref |
c39a58e6 | 1828 | (struct elf_strtab_hash *, bfd_size_type); |
2b0f7ef9 | 1829 | extern void _bfd_elf_strtab_delref |
c39a58e6 | 1830 | (struct elf_strtab_hash *, bfd_size_type); |
2b0f7ef9 | 1831 | extern void _bfd_elf_strtab_clear_all_refs |
c39a58e6 | 1832 | (struct elf_strtab_hash *); |
2b0f7ef9 | 1833 | extern bfd_size_type _bfd_elf_strtab_size |
c39a58e6 | 1834 | (struct elf_strtab_hash *); |
2b0f7ef9 | 1835 | extern bfd_size_type _bfd_elf_strtab_offset |
c39a58e6 | 1836 | (struct elf_strtab_hash *, bfd_size_type); |
b34976b6 | 1837 | extern bfd_boolean _bfd_elf_strtab_emit |
c39a58e6 | 1838 | (bfd *, struct elf_strtab_hash *); |
2b0f7ef9 | 1839 | extern void _bfd_elf_strtab_finalize |
c39a58e6 | 1840 | (struct elf_strtab_hash *); |
2b0f7ef9 | 1841 | |
ca92cecb RS |
1842 | extern void _bfd_elf_begin_eh_frame_parsing |
1843 | (struct bfd_link_info *info); | |
1844 | extern void _bfd_elf_parse_eh_frame | |
1845 | (bfd *, struct bfd_link_info *, asection *, struct elf_reloc_cookie *); | |
1846 | extern void _bfd_elf_end_eh_frame_parsing | |
1847 | (struct bfd_link_info *info); | |
1848 | ||
b34976b6 | 1849 | extern bfd_boolean _bfd_elf_discard_section_eh_frame |
c39a58e6 AM |
1850 | (bfd *, struct bfd_link_info *, asection *, |
1851 | bfd_boolean (*) (bfd_vma, void *), struct elf_reloc_cookie *); | |
b34976b6 | 1852 | extern bfd_boolean _bfd_elf_discard_section_eh_frame_hdr |
c39a58e6 | 1853 | (bfd *, struct bfd_link_info *); |
65765700 | 1854 | extern bfd_vma _bfd_elf_eh_frame_section_offset |
92e4ec35 | 1855 | (bfd *, struct bfd_link_info *, asection *, bfd_vma); |
b34976b6 | 1856 | extern bfd_boolean _bfd_elf_write_section_eh_frame |
c39a58e6 | 1857 | (bfd *, struct bfd_link_info *, asection *, bfd_byte *); |
b34976b6 | 1858 | extern bfd_boolean _bfd_elf_write_section_eh_frame_hdr |
c39a58e6 | 1859 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1860 | extern bfd_boolean _bfd_elf_maybe_strip_eh_frame_hdr |
c39a58e6 | 1861 | (struct bfd_link_info *); |
65765700 | 1862 | |
45d6a902 | 1863 | extern bfd_boolean _bfd_elf_merge_symbol |
c39a58e6 | 1864 | (bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *, |
af44c138 L |
1865 | asection **, bfd_vma *, unsigned int *, |
1866 | struct elf_link_hash_entry **, bfd_boolean *, | |
0f8a2703 | 1867 | bfd_boolean *, bfd_boolean *, bfd_boolean *); |
45d6a902 | 1868 | |
fdc90cb4 JJ |
1869 | extern bfd_boolean _bfd_elf_hash_symbol (struct elf_link_hash_entry *); |
1870 | ||
45d6a902 | 1871 | extern bfd_boolean _bfd_elf_add_default_symbol |
c39a58e6 AM |
1872 | (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, |
1873 | const char *, Elf_Internal_Sym *, asection **, bfd_vma *, | |
0f8a2703 | 1874 | bfd_boolean *, bfd_boolean); |
45d6a902 AM |
1875 | |
1876 | extern bfd_boolean _bfd_elf_export_symbol | |
c39a58e6 | 1877 | (struct elf_link_hash_entry *, void *); |
45d6a902 AM |
1878 | |
1879 | extern bfd_boolean _bfd_elf_link_find_version_dependencies | |
c39a58e6 | 1880 | (struct elf_link_hash_entry *, void *); |
45d6a902 AM |
1881 | |
1882 | extern bfd_boolean _bfd_elf_link_assign_sym_version | |
c39a58e6 | 1883 | (struct elf_link_hash_entry *, void *); |
45d6a902 | 1884 | |
dc810e39 | 1885 | extern long _bfd_elf_link_lookup_local_dynindx |
c39a58e6 | 1886 | (struct bfd_link_info *, bfd *, long); |
b34976b6 | 1887 | extern bfd_boolean _bfd_elf_compute_section_file_positions |
c39a58e6 | 1888 | (bfd *, struct bfd_link_info *); |
dc810e39 | 1889 | extern void _bfd_elf_assign_file_positions_for_relocs |
c39a58e6 | 1890 | (bfd *); |
dc810e39 | 1891 | extern file_ptr _bfd_elf_assign_file_position_for_section |
c39a58e6 | 1892 | (Elf_Internal_Shdr *, file_ptr, bfd_boolean); |
dc810e39 | 1893 | |
b34976b6 | 1894 | extern bfd_boolean _bfd_elf_validate_reloc |
c39a58e6 | 1895 | (bfd *, arelent *); |
dc810e39 | 1896 | |
45d6a902 | 1897 | extern bfd_boolean _bfd_elf_link_create_dynamic_sections |
c39a58e6 | 1898 | (bfd *, struct bfd_link_info *); |
aee6f5b4 AO |
1899 | extern bfd_boolean _bfd_elf_link_omit_section_dynsym |
1900 | (bfd *, struct bfd_link_info *, asection *); | |
b34976b6 | 1901 | extern bfd_boolean _bfd_elf_create_dynamic_sections |
c39a58e6 | 1902 | (bfd *, struct bfd_link_info *); |
b34976b6 | 1903 | extern bfd_boolean _bfd_elf_create_got_section |
c39a58e6 | 1904 | (bfd *, struct bfd_link_info *); |
d98685ac AM |
1905 | extern struct elf_link_hash_entry *_bfd_elf_define_linkage_sym |
1906 | (bfd *, struct bfd_link_info *, asection *, const char *); | |
74541ad4 AM |
1907 | extern void _bfd_elf_init_1_index_section |
1908 | (bfd *, struct bfd_link_info *); | |
1909 | extern void _bfd_elf_init_2_index_sections | |
1910 | (bfd *, struct bfd_link_info *); | |
dc810e39 | 1911 | |
b34976b6 | 1912 | extern bfd_boolean _bfd_elfcore_make_pseudosection |
c39a58e6 | 1913 | (bfd *, char *, size_t, ufile_ptr); |
dc810e39 | 1914 | extern char *_bfd_elfcore_strndup |
c39a58e6 | 1915 | (bfd *, char *, size_t); |
dc810e39 | 1916 | |
45d6a902 | 1917 | extern Elf_Internal_Rela *_bfd_elf_link_read_relocs |
c39a58e6 | 1918 | (bfd *, asection *, void *, Elf_Internal_Rela *, bfd_boolean); |
45d6a902 AM |
1919 | |
1920 | extern bfd_boolean _bfd_elf_link_size_reloc_section | |
c39a58e6 | 1921 | (bfd *, Elf_Internal_Shdr *, asection *); |
45d6a902 AM |
1922 | |
1923 | extern bfd_boolean _bfd_elf_link_output_relocs | |
eac338cf PB |
1924 | (bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *, |
1925 | struct elf_link_hash_entry **); | |
45d6a902 AM |
1926 | |
1927 | extern bfd_boolean _bfd_elf_fix_symbol_flags | |
c39a58e6 | 1928 | (struct elf_link_hash_entry *, struct elf_info_failed *); |
45d6a902 AM |
1929 | |
1930 | extern bfd_boolean _bfd_elf_adjust_dynamic_symbol | |
c39a58e6 | 1931 | (struct elf_link_hash_entry *, void *); |
45d6a902 | 1932 | |
027297b7 L |
1933 | extern bfd_boolean _bfd_elf_adjust_dynamic_copy |
1934 | (struct elf_link_hash_entry *, asection *); | |
1935 | ||
45d6a902 | 1936 | extern bfd_boolean _bfd_elf_link_sec_merge_syms |
c39a58e6 | 1937 | (struct elf_link_hash_entry *, void *); |
45d6a902 | 1938 | |
986a241f | 1939 | extern bfd_boolean _bfd_elf_dynamic_symbol_p |
c39a58e6 | 1940 | (struct elf_link_hash_entry *, struct bfd_link_info *, bfd_boolean); |
f6c52c13 AM |
1941 | |
1942 | extern bfd_boolean _bfd_elf_symbol_refs_local_p | |
c39a58e6 | 1943 | (struct elf_link_hash_entry *, struct bfd_link_info *, bfd_boolean); |
986a241f | 1944 | |
cdfeee4f | 1945 | extern bfd_reloc_status_type bfd_elf_perform_complex_relocation |
0f02bbd9 | 1946 | (bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, bfd_vma); |
d9352518 | 1947 | |
dd863624 | 1948 | extern bfd_boolean _bfd_elf_setup_sections |
3d7f7666 L |
1949 | (bfd *); |
1950 | ||
d1036acb L |
1951 | extern void _bfd_elf_set_osabi (bfd * , struct bfd_link_info *); |
1952 | ||
dc810e39 | 1953 | extern const bfd_target *bfd_elf32_object_p |
c39a58e6 | 1954 | (bfd *); |
dc810e39 | 1955 | extern const bfd_target *bfd_elf32_core_file_p |
c39a58e6 | 1956 | (bfd *); |
dc810e39 | 1957 | extern char *bfd_elf32_core_file_failing_command |
c39a58e6 | 1958 | (bfd *); |
dc810e39 | 1959 | extern int bfd_elf32_core_file_failing_signal |
c39a58e6 | 1960 | (bfd *); |
b34976b6 | 1961 | extern bfd_boolean bfd_elf32_core_file_matches_executable_p |
c39a58e6 | 1962 | (bfd *, bfd *); |
252b5132 | 1963 | |
8384fb8f | 1964 | extern bfd_boolean bfd_elf32_swap_symbol_in |
c39a58e6 | 1965 | (bfd *, const void *, const void *, Elf_Internal_Sym *); |
252b5132 | 1966 | extern void bfd_elf32_swap_symbol_out |
c39a58e6 | 1967 | (bfd *, const Elf_Internal_Sym *, void *, void *); |
252b5132 | 1968 | extern void bfd_elf32_swap_reloc_in |
c39a58e6 | 1969 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
252b5132 | 1970 | extern void bfd_elf32_swap_reloc_out |
c39a58e6 | 1971 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
252b5132 | 1972 | extern void bfd_elf32_swap_reloca_in |
c39a58e6 | 1973 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
252b5132 | 1974 | extern void bfd_elf32_swap_reloca_out |
c39a58e6 | 1975 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
252b5132 | 1976 | extern void bfd_elf32_swap_phdr_in |
c39a58e6 | 1977 | (bfd *, const Elf32_External_Phdr *, Elf_Internal_Phdr *); |
252b5132 | 1978 | extern void bfd_elf32_swap_phdr_out |
c39a58e6 | 1979 | (bfd *, const Elf_Internal_Phdr *, Elf32_External_Phdr *); |
252b5132 | 1980 | extern void bfd_elf32_swap_dyn_in |
c39a58e6 | 1981 | (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 | 1982 | extern void bfd_elf32_swap_dyn_out |
c39a58e6 | 1983 | (bfd *, const Elf_Internal_Dyn *, void *); |
252b5132 | 1984 | extern long bfd_elf32_slurp_symbol_table |
c39a58e6 | 1985 | (bfd *, asymbol **, bfd_boolean); |
b34976b6 | 1986 | extern bfd_boolean bfd_elf32_write_shdrs_and_ehdr |
c39a58e6 | 1987 | (bfd *); |
252b5132 | 1988 | extern int bfd_elf32_write_out_phdrs |
c39a58e6 | 1989 | (bfd *, const Elf_Internal_Phdr *, unsigned int); |
20a761b5 RM |
1990 | extern bfd_boolean bfd_elf32_checksum_contents |
1991 | (bfd * , void (*) (const void *, size_t, void *), void *); | |
b9f66672 | 1992 | extern void bfd_elf32_write_relocs |
c39a58e6 | 1993 | (bfd *, asection *, void *); |
b34976b6 | 1994 | extern bfd_boolean bfd_elf32_slurp_reloc_table |
c39a58e6 | 1995 | (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 | 1996 | |
dc810e39 | 1997 | extern const bfd_target *bfd_elf64_object_p |
c39a58e6 | 1998 | (bfd *); |
dc810e39 | 1999 | extern const bfd_target *bfd_elf64_core_file_p |
c39a58e6 | 2000 | (bfd *); |
dc810e39 | 2001 | extern char *bfd_elf64_core_file_failing_command |
c39a58e6 | 2002 | (bfd *); |
dc810e39 | 2003 | extern int bfd_elf64_core_file_failing_signal |
c39a58e6 | 2004 | (bfd *); |
b34976b6 | 2005 | extern bfd_boolean bfd_elf64_core_file_matches_executable_p |
c39a58e6 | 2006 | (bfd *, bfd *); |
252b5132 | 2007 | |
8384fb8f | 2008 | extern bfd_boolean bfd_elf64_swap_symbol_in |
c39a58e6 | 2009 | (bfd *, const void *, const void *, Elf_Internal_Sym *); |
252b5132 | 2010 | extern void bfd_elf64_swap_symbol_out |
c39a58e6 | 2011 | (bfd *, const Elf_Internal_Sym *, void *, void *); |
252b5132 | 2012 | extern void bfd_elf64_swap_reloc_in |
c39a58e6 | 2013 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
252b5132 | 2014 | extern void bfd_elf64_swap_reloc_out |
c39a58e6 | 2015 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
252b5132 | 2016 | extern void bfd_elf64_swap_reloca_in |
c39a58e6 | 2017 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
252b5132 | 2018 | extern void bfd_elf64_swap_reloca_out |
c39a58e6 | 2019 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
252b5132 | 2020 | extern void bfd_elf64_swap_phdr_in |
c39a58e6 | 2021 | (bfd *, const Elf64_External_Phdr *, Elf_Internal_Phdr *); |
252b5132 | 2022 | extern void bfd_elf64_swap_phdr_out |
c39a58e6 | 2023 | (bfd *, const Elf_Internal_Phdr *, Elf64_External_Phdr *); |
252b5132 | 2024 | extern void bfd_elf64_swap_dyn_in |
c39a58e6 | 2025 | (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 | 2026 | extern void bfd_elf64_swap_dyn_out |
c39a58e6 | 2027 | (bfd *, const Elf_Internal_Dyn *, void *); |
252b5132 | 2028 | extern long bfd_elf64_slurp_symbol_table |
c39a58e6 | 2029 | (bfd *, asymbol **, bfd_boolean); |
b34976b6 | 2030 | extern bfd_boolean bfd_elf64_write_shdrs_and_ehdr |
c39a58e6 | 2031 | (bfd *); |
252b5132 | 2032 | extern int bfd_elf64_write_out_phdrs |
c39a58e6 | 2033 | (bfd *, const Elf_Internal_Phdr *, unsigned int); |
20a761b5 RM |
2034 | extern bfd_boolean bfd_elf64_checksum_contents |
2035 | (bfd * , void (*) (const void *, size_t, void *), void *); | |
b9f66672 | 2036 | extern void bfd_elf64_write_relocs |
c39a58e6 | 2037 | (bfd *, asection *, void *); |
b34976b6 | 2038 | extern bfd_boolean bfd_elf64_slurp_reloc_table |
c39a58e6 | 2039 | (bfd *, asection *, asymbol **, bfd_boolean); |
5a580b3a | 2040 | |
13285a1b AM |
2041 | extern bfd_boolean _bfd_elf_default_relocs_compatible |
2042 | (const bfd_target *, const bfd_target *); | |
2043 | ||
2044 | extern bfd_boolean _bfd_elf_relocs_compatible | |
2045 | (const bfd_target *, const bfd_target *); | |
2046 | ||
8387904d AM |
2047 | extern struct elf_link_hash_entry *_bfd_elf_archive_symbol_lookup |
2048 | (bfd *, struct bfd_link_info *, const char *); | |
4ad4eba5 AM |
2049 | extern bfd_boolean bfd_elf_link_add_symbols |
2050 | (bfd *, struct bfd_link_info *); | |
5a580b3a | 2051 | extern bfd_boolean _bfd_elf_add_dynamic_entry |
c39a58e6 | 2052 | (struct bfd_link_info *, bfd_vma, bfd_vma); |
252b5132 | 2053 | |
c152c796 AM |
2054 | extern bfd_boolean bfd_elf_link_record_dynamic_symbol |
2055 | (struct bfd_link_info *, struct elf_link_hash_entry *); | |
30b30c21 | 2056 | |
c152c796 | 2057 | extern int bfd_elf_link_record_local_dynamic_symbol |
c39a58e6 | 2058 | (struct bfd_link_info *, bfd *, long); |
252b5132 | 2059 | |
55255dae | 2060 | extern void bfd_elf_link_mark_dynamic_symbol |
40b36307 L |
2061 | (struct bfd_link_info *, struct elf_link_hash_entry *, |
2062 | Elf_Internal_Sym *); | |
55255dae | 2063 | |
b34976b6 | 2064 | extern bfd_boolean _bfd_elf_close_and_cleanup |
c39a58e6 | 2065 | (bfd *); |
35330cce | 2066 | |
a4d8e49b L |
2067 | extern bfd_boolean _bfd_elf_common_definition |
2068 | (Elf_Internal_Sym *); | |
2069 | ||
2070 | extern unsigned int _bfd_elf_common_section_index | |
2071 | (asection *); | |
2072 | ||
2073 | extern asection *_bfd_elf_common_section | |
2074 | (asection *); | |
2075 | ||
35330cce NC |
2076 | extern void _bfd_dwarf2_cleanup_debug_info |
2077 | (bfd *); | |
2078 | ||
10455f89 HPN |
2079 | extern bfd_vma _bfd_elf_default_got_elt_size |
2080 | (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, bfd *, | |
2081 | unsigned long); | |
2082 | ||
252b5132 | 2083 | extern bfd_reloc_status_type _bfd_elf_rel_vtable_reloc_fn |
fc0a2244 | 2084 | (bfd *, arelent *, struct bfd_symbol *, void *, |
c39a58e6 | 2085 | asection *, bfd *, char **); |
252b5132 | 2086 | |
c152c796 | 2087 | extern bfd_boolean bfd_elf_final_link |
c39a58e6 | 2088 | (bfd *, struct bfd_link_info *); |
c152c796 | 2089 | |
74f0fb50 AM |
2090 | extern void _bfd_elf_gc_keep |
2091 | (struct bfd_link_info *info); | |
2092 | ||
64d03ab5 AM |
2093 | extern bfd_boolean bfd_elf_gc_mark_dynamic_ref_symbol |
2094 | (struct elf_link_hash_entry *h, void *inf); | |
2095 | ||
c152c796 | 2096 | extern bfd_boolean bfd_elf_gc_sections |
c39a58e6 | 2097 | (bfd *, struct bfd_link_info *); |
c152c796 AM |
2098 | |
2099 | extern bfd_boolean bfd_elf_gc_record_vtinherit | |
c39a58e6 | 2100 | (bfd *, asection *, struct elf_link_hash_entry *, bfd_vma); |
c152c796 AM |
2101 | |
2102 | extern bfd_boolean bfd_elf_gc_record_vtentry | |
c39a58e6 | 2103 | (bfd *, asection *, struct elf_link_hash_entry *, bfd_vma); |
252b5132 | 2104 | |
07adf181 AM |
2105 | extern asection *_bfd_elf_gc_mark_hook |
2106 | (asection *, struct bfd_link_info *, Elf_Internal_Rela *, | |
2107 | struct elf_link_hash_entry *, Elf_Internal_Sym *); | |
2108 | ||
5241d853 RS |
2109 | extern asection *_bfd_elf_gc_mark_rsec |
2110 | (struct bfd_link_info *, asection *, elf_gc_mark_hook_fn, | |
2111 | struct elf_reloc_cookie *); | |
2112 | ||
2113 | extern bfd_boolean _bfd_elf_gc_mark_reloc | |
2114 | (struct bfd_link_info *, asection *, elf_gc_mark_hook_fn, | |
9d0a14d3 RS |
2115 | struct elf_reloc_cookie *); |
2116 | ||
2117 | extern bfd_boolean _bfd_elf_gc_mark_fdes | |
2118 | (struct bfd_link_info *, asection *, asection *, elf_gc_mark_hook_fn, | |
2119 | struct elf_reloc_cookie *); | |
5241d853 | 2120 | |
ccfa59ea | 2121 | extern bfd_boolean _bfd_elf_gc_mark |
5241d853 | 2122 | (struct bfd_link_info *, asection *, elf_gc_mark_hook_fn); |
ccfa59ea | 2123 | |
c152c796 | 2124 | extern bfd_boolean bfd_elf_gc_common_finalize_got_offsets |
c39a58e6 | 2125 | (bfd *, struct bfd_link_info *); |
c152c796 AM |
2126 | |
2127 | extern bfd_boolean bfd_elf_gc_common_final_link | |
c39a58e6 | 2128 | (bfd *, struct bfd_link_info *); |
252b5132 | 2129 | |
c152c796 | 2130 | extern bfd_boolean bfd_elf_reloc_symbol_deleted_p |
c39a58e6 | 2131 | (bfd_vma, void *); |
73d074b4 | 2132 | |
8ded5a0f | 2133 | extern struct elf_segment_map * _bfd_elf_make_dynamic_segment |
229fcec5 MM |
2134 | (bfd *, asection *); |
2135 | ||
8ded5a0f AM |
2136 | extern bfd_boolean _bfd_elf_map_sections_to_segments |
2137 | (bfd *, struct bfd_link_info *); | |
2138 | ||
fcb93ecf PB |
2139 | extern bfd_boolean _bfd_elf_is_function_type (unsigned int); |
2140 | ||
2ea37f1c NC |
2141 | extern Elf_Internal_Phdr * _bfd_elf_find_segment_containing_section |
2142 | (bfd * abfd, asection * section); | |
2143 | ||
7c76fa91 | 2144 | /* Exported interface for writing elf corefile notes. */ |
d4c88bbb | 2145 | extern char *elfcore_write_note |
c39a58e6 | 2146 | (bfd *, char *, int *, const char *, int, const void *, int); |
d4c88bbb | 2147 | extern char *elfcore_write_prpsinfo |
c39a58e6 | 2148 | (bfd *, char *, int *, const char *, const char *); |
d4c88bbb | 2149 | extern char *elfcore_write_prstatus |
c39a58e6 | 2150 | (bfd *, char *, int *, long, int, const void *); |
d4c88bbb | 2151 | extern char * elfcore_write_pstatus |
c39a58e6 | 2152 | (bfd *, char *, int *, long, int, const void *); |
d4c88bbb | 2153 | extern char *elfcore_write_prfpreg |
c39a58e6 | 2154 | (bfd *, char *, int *, const void *, int); |
d4c88bbb | 2155 | extern char *elfcore_write_prxfpreg |
c39a58e6 | 2156 | (bfd *, char *, int *, const void *, int); |
97753bd5 AM |
2157 | extern char *elfcore_write_ppc_vmx |
2158 | (bfd *, char *, int *, const void *, int); | |
89eeb0bc LM |
2159 | extern char *elfcore_write_ppc_vsx |
2160 | (bfd *, char *, int *, const void *, int); | |
d4c88bbb | 2161 | extern char *elfcore_write_lwpstatus |
c39a58e6 | 2162 | (bfd *, char *, int *, long, int, const void *); |
bb864ac1 CES |
2163 | extern char *elfcore_write_register_note |
2164 | (bfd *, char *, int *, const char *, const void *, int); | |
7c76fa91 | 2165 | |
8d6337fe | 2166 | extern bfd *_bfd_elf32_bfd_from_remote_memory |
c39a58e6 | 2167 | (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep, |
f075ee0c | 2168 | int (*target_read_memory) (bfd_vma, bfd_byte *, int)); |
8d6337fe | 2169 | extern bfd *_bfd_elf64_bfd_from_remote_memory |
c39a58e6 | 2170 | (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep, |
f075ee0c | 2171 | int (*target_read_memory) (bfd_vma, bfd_byte *, int)); |
8d6337fe | 2172 | |
104d59d1 JM |
2173 | extern bfd_vma bfd_elf_obj_attr_size (bfd *); |
2174 | extern void bfd_elf_set_obj_attr_contents (bfd *, bfd_byte *, bfd_vma); | |
2175 | extern int bfd_elf_get_obj_attr_int (bfd *, int, int); | |
2176 | extern void bfd_elf_add_obj_attr_int (bfd *, int, int, unsigned int); | |
2177 | #define bfd_elf_add_proc_attr_int(BFD, TAG, VALUE) \ | |
2178 | bfd_elf_add_obj_attr_int ((BFD), OBJ_ATTR_PROC, (TAG), (VALUE)) | |
2179 | extern void bfd_elf_add_obj_attr_string (bfd *, int, int, const char *); | |
2180 | #define bfd_elf_add_proc_attr_string(BFD, TAG, VALUE) \ | |
2181 | bfd_elf_add_obj_attr_string ((BFD), OBJ_ATTR_PROC, (TAG), (VALUE)) | |
2182 | extern void bfd_elf_add_obj_attr_compat (bfd *, int, unsigned int, | |
2183 | const char *); | |
2184 | #define bfd_elf_add_proc_attr_compat(BFD, INTVAL, STRVAL) \ | |
2185 | bfd_elf_add_obj_attr_compat ((BFD), OBJ_ATTR_PROC, (INTVAL), (STRVAL)) | |
2186 | ||
2187 | extern char *_bfd_elf_attr_strdup (bfd *, const char *); | |
2188 | extern void _bfd_elf_copy_obj_attributes (bfd *, bfd *); | |
2189 | extern int _bfd_elf_obj_attrs_arg_type (bfd *, int, int); | |
2190 | extern void _bfd_elf_parse_attributes (bfd *, Elf_Internal_Shdr *); | |
2191 | extern bfd_boolean _bfd_elf_merge_object_attributes (bfd *, bfd *); | |
2192 | ||
3b22753a L |
2193 | /* Large common section. */ |
2194 | extern asection _bfd_elf_large_com_section; | |
2195 | ||
d4845d57 JR |
2196 | /* SH ELF specific routine. */ |
2197 | ||
b34976b6 | 2198 | extern bfd_boolean _sh_elf_set_mach_from_flags |
c39a58e6 | 2199 | (bfd *); |
d4845d57 | 2200 | |
c152c796 AM |
2201 | /* This is the condition under which finish_dynamic_symbol will be called. |
2202 | If our finish_dynamic_symbol isn't called, we'll need to do something | |
2203 | about initializing any .plt and .got entries in relocate_section. */ | |
2204 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \ | |
2205 | ((DYN) \ | |
f5385ebf AM |
2206 | && ((SHARED) || !(H)->forced_local) \ |
2207 | && ((H)->dynindx != -1 || (H)->forced_local)) | |
c152c796 | 2208 | |
560e09e9 NC |
2209 | /* This macro is to avoid lots of duplicated code in the body |
2210 | of xxx_relocate_section() in the various elfxx-xxxx.c files. */ | |
b2a8e766 AM |
2211 | #define RELOC_FOR_GLOBAL_SYMBOL(info, input_bfd, input_section, rel, \ |
2212 | r_symndx, symtab_hdr, sym_hashes, \ | |
2213 | h, sec, relocation, \ | |
2214 | unresolved_reloc, warned) \ | |
2215 | do \ | |
2216 | { \ | |
2217 | /* It seems this can happen with erroneous or unsupported \ | |
2218 | input (mixing a.out and elf in an archive, for example.) */ \ | |
2219 | if (sym_hashes == NULL) \ | |
2220 | return FALSE; \ | |
2221 | \ | |
2222 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; \ | |
2223 | \ | |
2224 | while (h->root.type == bfd_link_hash_indirect \ | |
2225 | || h->root.type == bfd_link_hash_warning) \ | |
2226 | h = (struct elf_link_hash_entry *) h->root.u.i.link; \ | |
2227 | \ | |
2228 | warned = FALSE; \ | |
2229 | unresolved_reloc = FALSE; \ | |
2230 | relocation = 0; \ | |
2231 | if (h->root.type == bfd_link_hash_defined \ | |
2232 | || h->root.type == bfd_link_hash_defweak) \ | |
2233 | { \ | |
2234 | sec = h->root.u.def.section; \ | |
2235 | if (sec == NULL \ | |
2236 | || sec->output_section == NULL) \ | |
2237 | /* Set a flag that will be cleared later if we find a \ | |
2238 | relocation value for this symbol. output_section \ | |
2239 | is typically NULL for symbols satisfied by a shared \ | |
2240 | library. */ \ | |
2241 | unresolved_reloc = TRUE; \ | |
2242 | else \ | |
2243 | relocation = (h->root.u.def.value \ | |
2244 | + sec->output_section->vma \ | |
2245 | + sec->output_offset); \ | |
2246 | } \ | |
2247 | else if (h->root.type == bfd_link_hash_undefweak) \ | |
2248 | ; \ | |
2249 | else if (info->unresolved_syms_in_objects == RM_IGNORE \ | |
2250 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) \ | |
2251 | ; \ | |
ab96bf03 | 2252 | else if (!info->relocatable) \ |
b2a8e766 | 2253 | { \ |
5a580b3a AM |
2254 | bfd_boolean err; \ |
2255 | err = (info->unresolved_syms_in_objects == RM_GENERATE_ERROR \ | |
2256 | || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT); \ | |
2257 | if (!info->callbacks->undefined_symbol (info, \ | |
2258 | h->root.root.string, \ | |
2259 | input_bfd, \ | |
2260 | input_section, \ | |
2261 | rel->r_offset, err)) \ | |
b2a8e766 AM |
2262 | return FALSE; \ |
2263 | warned = TRUE; \ | |
2264 | } \ | |
2265 | } \ | |
560e09e9 NC |
2266 | while (0) |
2267 | ||
55255dae L |
2268 | /* Will a symbol be bound to the the definition within the shared |
2269 | library, if any. */ | |
2270 | #define SYMBOLIC_BIND(INFO, H) \ | |
2271 | ((INFO)->symbolic || ((INFO)->dynamic && !(H)->dynamic)) | |
2272 | ||
252b5132 | 2273 | #endif /* _LIBELF_H_ */ |