Remove sh5 and sh64 support
[deliverable/binutils-gdb.git] / bfd / elf-bfd.h
CommitLineData
252b5132 1/* BFD back-end data structures for ELF files.
219d1afa 2 Copyright (C) 1992-2018 Free Software Foundation, Inc.
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RH
3 Written by Cygnus Support.
4
5e8d7549 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
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7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
cd123cb7 9 the Free Software Foundation; either version 3 of the License, or
5e8d7549 10 (at your option) any later version.
252b5132 11
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12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
252b5132 16
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17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
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19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
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21
22#ifndef _LIBELF_H_
23#define _LIBELF_H_ 1
24
25#include "elf/common.h"
252b5132 26#include "elf/external.h"
4fbb74a6 27#include "elf/internal.h"
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28#include "bfdlink.h"
29
55172d69
PA
30#ifdef __cplusplus
31extern "C" {
32#endif
33
d9bc7a44 34/* The number of entries in a section is its size divided by the size
51b64d56 35 of a single entry. This is normally only applicable to reloc and
ce98a316
NC
36 symbol table sections.
37 PR 9934: It is possible to have relocations that do not refer to
38 symbols, thus it is also possible to have a relocation section in
39 an object file, but no symbol table. */
40#define NUM_SHDR_ENTRIES(shdr) ((shdr)->sh_entsize > 0 ? (shdr)->sh_size / (shdr)->sh_entsize : 0)
d9bc7a44 41
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42/* If size isn't specified as 64 or 32, NAME macro should fail. */
43#ifndef NAME
c39a58e6
AM
44#if ARCH_SIZE == 64
45#define NAME(x, y) x ## 64 ## _ ## y
252b5132 46#endif
c39a58e6
AM
47#if ARCH_SIZE == 32
48#define NAME(x, y) x ## 32 ## _ ## y
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49#endif
50#endif
51
52#ifndef NAME
c39a58e6 53#define NAME(x, y) x ## NOSIZE ## _ ## y
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54#endif
55
56#define ElfNAME(X) NAME(Elf,X)
57#define elfNAME(X) NAME(elf,X)
58
59/* Information held for an ELF symbol. The first field is the
60 corresponding asymbol. Every symbol is an ELF file is actually a
61 pointer to this structure, although it is often handled as a
62 pointer to an asymbol. */
63
64typedef struct
65{
66 /* The BFD symbol. */
67 asymbol symbol;
68 /* ELF symbol information. */
69 Elf_Internal_Sym internal_elf_sym;
70 /* Backend specific information. */
71 union
72 {
73 unsigned int hppa_arg_reloc;
c39a58e6
AM
74 void *mips_extr;
75 void *any;
252b5132
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76 }
77 tc_data;
78
79 /* Version information. This is from an Elf_Internal_Versym
80 structure in a SHT_GNU_versym section. It is zero if there is no
81 version information. */
82 unsigned short version;
83
84} elf_symbol_type;
85\f
2b0f7ef9 86struct elf_strtab_hash;
5cab59f6
AM
87struct got_entry;
88struct plt_entry;
2b0f7ef9 89
a50b1753
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90union gotplt_union
91 {
92 bfd_signed_vma refcount;
93 bfd_vma offset;
94 struct got_entry *glist;
95 struct plt_entry *plist;
96 };
97
98struct elf_link_virtual_table_entry
99 {
100 /* Virtual table entry use information. This array is nominally of size
101 size/sizeof(target_void_pointer), though we have to be able to assume
102 and track a size while the symbol is still undefined. It is indexed
103 via offset/sizeof(target_void_pointer). */
104 size_t size;
105 bfd_boolean *used;
106
107 /* Virtual table derivation info. */
108 struct elf_link_hash_entry *parent;
109 };
110
422f1182
L
111/* ELF symbol version. */
112enum elf_symbol_version
113 {
114 unknown = 0,
115 unversioned,
116 versioned,
117 versioned_hidden
118 };
119
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120/* ELF linker hash table entries. */
121
122struct elf_link_hash_entry
123{
124 struct bfd_link_hash_entry root;
125
126 /* Symbol index in output file. This is initialized to -1. It is
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L
127 set to -2 if the symbol is used by a reloc. It is set to -3 if
128 this symbol is defined in a discarded section. */
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129 long indx;
130
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131 /* Symbol index as a dynamic symbol. Initialized to -1, and remains
132 -1 if this is not a dynamic symbol. */
30b30c21
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133 /* ??? Note that this is consistently used as a synonym for tests
134 against whether we can perform various simplifying transformations
135 to the code. (E.g. changing a pc-relative jump to a PLT entry
136 into a pc-relative jump to the target function.) That test, which
137 is often relatively complex, and someplaces wrong or incomplete,
138 should really be replaced by a predicate in elflink.c.
139
140 End result: this field -1 does not indicate that the symbol is
141 not in the dynamic symbol table, but rather that the symbol is
142 not visible outside this DSO. */
252b5132
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143 long dynindx;
144
a90b9fca
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145 /* If this symbol requires an entry in the global offset table, the
146 processor specific backend uses this field to track usage and
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147 final offset. Two schemes are supported: The first assumes that
148 a symbol may only have one GOT entry, and uses REFCOUNT until
149 size_dynamic_sections, at which point the contents of the .got is
150 fixed. Afterward, if OFFSET is -1, then the symbol does not
151 require a global offset table entry. The second scheme allows
152 multiple GOT entries per symbol, managed via a linked list
153 pointed to by GLIST. */
a50b1753 154 union gotplt_union got;
a90b9fca
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155
156 /* Same, but tracks a procedure linkage table entry. */
5cab59f6 157 union gotplt_union plt;
a90b9fca
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158
159 /* Symbol size. */
160 bfd_size_type size;
161
252b5132 162 /* Symbol type (STT_NOTYPE, STT_OBJECT, etc.). */
f5385ebf 163 unsigned int type : 8;
252b5132 164
9b234ee9 165 /* Symbol st_other value, symbol visibility. */
f5385ebf 166 unsigned int other : 8;
252b5132 167
35fc36a8
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168 /* The symbol's st_target_internal value (see Elf_Internal_Sym). */
169 unsigned int target_internal : 8;
170
7ae26bc1
AM
171 /* Symbol is referenced by a non-shared object (other than the object
172 in which it is defined). */
f5385ebf 173 unsigned int ref_regular : 1;
252b5132 174 /* Symbol is defined by a non-shared object. */
f5385ebf 175 unsigned int def_regular : 1;
252b5132 176 /* Symbol is referenced by a shared object. */
f5385ebf 177 unsigned int ref_dynamic : 1;
252b5132 178 /* Symbol is defined by a shared object. */
f5385ebf 179 unsigned int def_dynamic : 1;
7ae26bc1
AM
180 /* Symbol has a non-weak reference from a non-shared object (other than
181 the object in which it is defined). */
f5385ebf 182 unsigned int ref_regular_nonweak : 1;
252b5132 183 /* Dynamic symbol has been adjustd. */
f5385ebf 184 unsigned int dynamic_adjusted : 1;
252b5132 185 /* Symbol needs a copy reloc. */
f5385ebf 186 unsigned int needs_copy : 1;
252b5132 187 /* Symbol needs a procedure linkage table entry. */
f5385ebf 188 unsigned int needs_plt : 1;
252b5132 189 /* Symbol appears in a non-ELF input file. */
f5385ebf 190 unsigned int non_elf : 1;
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L
191 /* Symbol version information. */
192 ENUM_BITFIELD (elf_symbol_version) versioned : 2;
252b5132 193 /* Symbol was forced to local scope due to a version script file. */
f5385ebf 194 unsigned int forced_local : 1;
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195 /* Symbol was forced to be dynamic due to a version script file. */
196 unsigned int dynamic : 1;
252b5132 197 /* Symbol was marked during garbage collection. */
f5385ebf 198 unsigned int mark : 1;
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199 /* Symbol is referenced by a non-GOT/non-PLT relocation. This is
200 not currently set by all the backends. */
f5385ebf 201 unsigned int non_got_ref : 1;
f6e332e6
AM
202 /* Symbol has a definition in a shared object.
203 FIXME: There is no real need for this field if def_dynamic is never
204 cleared and all places that test def_dynamic also test def_regular. */
f5385ebf 205 unsigned int dynamic_def : 1;
ee659f1f
AM
206 /* Symbol has a non-weak reference from a shared object. */
207 unsigned int ref_dynamic_nonweak : 1;
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208 /* Symbol is referenced with a relocation where C/C++ pointer equality
209 matters. */
f5385ebf 210 unsigned int pointer_equality_needed : 1;
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211 /* Symbol is a unique global symbol. */
212 unsigned int unique_global : 1;
b8417128
AM
213 /* Symbol is defined by a shared library with non-default visibility
214 in a read/write section. */
6cabe1ea 215 unsigned int protected_def : 1;
cbd0eecf
L
216 /* Symbol is __start_SECNAME or __stop_SECNAME to mark section
217 SECNAME. */
218 unsigned int start_stop : 1;
60d67dc8
AM
219 /* Symbol is or was a weak defined symbol from a dynamic object with
220 a strong defined symbol alias. U.ALIAS points to a list of aliases,
221 the definition having is_weakalias clear. */
222 unsigned int is_weakalias : 1;
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223
224 /* String table index in .dynstr if this is a dynamic symbol. */
225 unsigned long dynstr_index;
226
227 union
228 {
60d67dc8
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229 /* Points to a circular list of non-function symbol aliases. */
230 struct elf_link_hash_entry *alias;
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AM
231
232 /* Hash value of the name computed using the ELF hash function.
233 Used part way through size_dynamic_sections, after we've finished
60d67dc8 234 with aliases. */
f6e332e6
AM
235 unsigned long elf_hash_value;
236 } u;
237
238 /* Version information. */
239 union
240 {
241 /* This field is used for a symbol which is not defined in a
242 regular object. It points to the version information read in
243 from the dynamic object. */
244 Elf_Internal_Verdef *verdef;
245 /* This field is used for a symbol which is defined in a regular
246 object. It is set up in size_dynamic_sections. It points to
247 the version information we should write out for this symbol. */
248 struct bfd_elf_version_tree *vertree;
249 } verinfo;
250
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251 union
252 {
253 /* For __start_SECNAME and __stop_SECNAME symbols, record the first
254 input section whose section name is SECNAME. */
255 asection *start_stop_section;
256
257 /* Vtable information. */
258 struct elf_link_virtual_table_entry *vtable;
259 } u2;
252b5132
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260};
261
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262/* Return the strong definition for a weak symbol with aliases. */
263
264static inline struct elf_link_hash_entry *
265weakdef (struct elf_link_hash_entry *h)
266{
267 while (h->is_weakalias)
268 h = h->u.alias;
269 return h;
270}
271
586119b3 272/* Will references to this symbol always reference the symbol
2676a7d9 273 in this object? */
986a241f 274#define SYMBOL_REFERENCES_LOCAL(INFO, H) \
f6c52c13 275 _bfd_elf_symbol_refs_local_p (H, INFO, 0)
586119b3
AM
276
277/* Will _calls_ to this symbol always call the version in this object? */
986a241f 278#define SYMBOL_CALLS_LOCAL(INFO, H) \
f6c52c13 279 _bfd_elf_symbol_refs_local_p (H, INFO, 1)
586119b3 280
62cd30f1
L
281/* Whether an undefined weak symbol should resolve to its link-time
282 value, even in PIC or PIE objects. */
283#define UNDEFWEAK_NO_DYNAMIC_RELOC(INFO, H) \
284 ((H)->root.type == bfd_link_hash_undefweak \
285 && (ELF_ST_VISIBILITY ((H)->other) != STV_DEFAULT \
286 || (INFO)->dynamic_undefined_weak == 0))
287
7e2294f9 288/* Common symbols that are turned into definitions don't have the
c4621b33
AM
289 DEF_REGULAR flag set, so they might appear to be undefined.
290 Symbols defined in linker scripts also don't have DEF_REGULAR set. */
7e2294f9 291#define ELF_COMMON_DEF_P(H) \
f5385ebf
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292 (!(H)->def_regular \
293 && !(H)->def_dynamic \
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AO
294 && (H)->root.type == bfd_link_hash_defined)
295
30b30c21
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296/* Records local symbols to be emitted in the dynamic symbol table. */
297
298struct elf_link_local_dynamic_entry
299{
300 struct elf_link_local_dynamic_entry *next;
301
302 /* The input bfd this symbol came from. */
303 bfd *input_bfd;
304
305 /* The index of the local symbol being copied. */
306 long input_indx;
307
308 /* The index in the outgoing dynamic symbol table. */
309 long dynindx;
3e932841 310
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311 /* A copy of the input symbol. */
312 Elf_Internal_Sym isym;
313};
314
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315struct elf_link_loaded_list
316{
317 struct elf_link_loaded_list *next;
318 bfd *abfd;
319};
320
126495ed 321/* Structures used by the eh_frame optimization code. */
126495ed
AM
322struct eh_cie_fde
323{
155eaaa0
RS
324 union {
325 struct {
ca92cecb
RS
326 /* If REMOVED == 1, this is the CIE that the FDE originally used.
327 The CIE belongs to the same .eh_frame input section as the FDE.
328
329 If REMOVED == 0, this is the CIE that we have chosen to use for
330 the output FDE. The CIE's REMOVED field is also 0, but the CIE
c2aaac08
AM
331 might belong to a different .eh_frame input section from the FDE.
332
333 May be NULL to signify that the FDE should be discarded. */
155eaaa0 334 struct eh_cie_fde *cie_inf;
9d0a14d3 335 struct eh_cie_fde *next_for_section;
155eaaa0 336 } fde;
ca92cecb 337 struct {
184d07da 338 /* CIEs have three states:
fc802241 339
184d07da
RS
340 - REMOVED && !MERGED: Slated for removal because we haven't yet
341 proven that an FDE needs it. FULL_CIE, if nonnull, points to
342 more detailed information about the CIE.
fc802241 343
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RS
344 - REMOVED && MERGED: We have merged this CIE with MERGED_WITH,
345 which may not belong to the same input section.
346
347 - !REMOVED: We have decided to keep this CIE. SEC is the
348 .eh_frame input section that contains the CIE. */
fc802241 349 union {
184d07da 350 struct cie *full_cie;
07d6d2b8
AM
351 struct eh_cie_fde *merged_with;
352 asection *sec;
fc802241 353 } u;
9d0a14d3 354
18e04883
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355 /* The offset of the personality data from the start of the CIE,
356 or 0 if the CIE doesn't have any. */
357 unsigned int personality_offset : 8;
358
d7153c4a
AM
359 /* Length of augmentation. aug_str_len is the length of the
360 string including null terminator. aug_data_len is the length
361 of the rest up to the initial insns. */
362 unsigned int aug_str_len : 3;
363 unsigned int aug_data_len : 5;
364
9d0a14d3
RS
365 /* True if we have marked relocations associated with this CIE. */
366 unsigned int gc_mark : 1;
9f4b847e
RS
367
368 /* True if we have decided to turn an absolute LSDA encoding into
184d07da 369 a PC-relative one. */
9f4b847e 370 unsigned int make_lsda_relative : 1;
6b2cc140 371
18e04883
RS
372 /* True if we have decided to turn an absolute personality
373 encoding into a PC-relative one. */
374 unsigned int make_per_encoding_relative : 1;
375
376 /* True if the CIE contains personality data and if that
377 data uses a PC-relative encoding. Always true when
378 make_per_encoding_relative is. */
6b2cc140
RS
379 unsigned int per_encoding_relative : 1;
380
2e0ce1c8
AM
381 /* True if the CIE contains personality data aligned to a
382 multiple of eight bytes. */
383 unsigned int per_encoding_aligned8 : 1;
384
6b2cc140
RS
385 /* True if we need to add an 'R' (FDE encoding) entry to the
386 CIE's augmentation data. */
387 unsigned int add_fde_encoding : 1;
184d07da
RS
388
389 /* True if we have merged this CIE with another. */
390 unsigned int merged : 1;
18e04883
RS
391
392 /* Unused bits. */
d7153c4a 393 unsigned int pad1 : 9;
ca92cecb 394 } cie;
155eaaa0
RS
395 } u;
396 unsigned int reloc_index;
126495ed 397 unsigned int size;
fda3ecf2 398 unsigned int offset;
126495ed 399 unsigned int new_offset;
155eaaa0
RS
400 unsigned int fde_encoding : 8;
401 unsigned int lsda_encoding : 8;
402 unsigned int lsda_offset : 8;
6b2cc140
RS
403
404 /* True if this entry represents a CIE, false if it represents an FDE. */
822392ce 405 unsigned int cie : 1;
6b2cc140
RS
406
407 /* True if this entry is currently marked for removal. */
822392ce 408 unsigned int removed : 1;
6b2cc140
RS
409
410 /* True if we need to add a 'z' (augmentation size) entry to the CIE's
411 augmentation data, and an associated byte to each of the CIE's FDEs. */
353057a5 412 unsigned int add_augmentation_size : 1;
6b2cc140
RS
413
414 /* True if we have decided to convert absolute FDE relocations into
415 relative ones. This applies to the first relocation in the FDE,
416 which is against the code that the FDE describes. */
822392ce 417 unsigned int make_relative : 1;
6b2cc140
RS
418
419 /* Unused bits. */
420 unsigned int pad1 : 4;
421
ac685e6a 422 unsigned int *set_loc;
126495ed
AM
423};
424
425struct eh_frame_sec_info
426{
427 unsigned int count;
184d07da 428 struct cie *cies;
126495ed
AM
429 struct eh_cie_fde entry[1];
430};
431
432struct eh_frame_array_ent
433{
434 bfd_vma initial_loc;
ae6c7e33 435 bfd_size_type range;
126495ed
AM
436 bfd_vma fde;
437};
438
bce613b9
JJ
439struct htab;
440
2f0c68f2
CM
441#define DWARF2_EH_HDR 1
442#define COMPACT_EH_HDR 2
443
444/* Endian-neutral code indicating that a function cannot be unwound. */
445#define COMPACT_EH_CANT_UNWIND_OPCODE 0x015d5d01
446
447struct dwarf_eh_frame_hdr_info
126495ed 448{
bce613b9 449 struct htab *cies;
2f0c68f2 450 unsigned int fde_count;
126495ed
AM
451 /* TRUE if .eh_frame_hdr should contain the sorted search table.
452 We build it if we successfully read all .eh_frame input sections
453 and recognize them. */
b34976b6 454 bfd_boolean table;
2f0c68f2
CM
455 struct eh_frame_array_ent *array;
456};
457
458struct compact_eh_frame_hdr_info
459{
460 unsigned int allocated_entries;
461 /* eh_frame_entry fragments. */
462 asection **entries;
463};
464
465struct eh_frame_hdr_info
466{
467 asection *hdr_sec;
468 unsigned int array_count;
469 bfd_boolean frame_hdr_is_compact;
470 union
471 {
472 struct dwarf_eh_frame_hdr_info dwarf;
473 struct compact_eh_frame_hdr_info compact;
474 }
475 u;
126495ed
AM
476};
477
4dfe6ac6
NC
478/* Enum used to identify target specific extensions to the elf_obj_tdata
479 and elf_link_hash_table structures. Note the enums deliberately start
480 from 1 so that we can detect an uninitialized field. The generic value
481 is last so that additions to this enum do not need to modify more than
482 one line. */
483enum elf_target_id
484{
a06ea964
NC
485 AARCH64_ELF_DATA = 1,
486 ALPHA_ELF_DATA,
8a36df4d 487 ARC_ELF_DATA,
4dfe6ac6
NC
488 ARM_ELF_DATA,
489 AVR_ELF_DATA,
490 BFIN_ELF_DATA,
491 CRIS_ELF_DATA,
492 FRV_ELF_DATA,
493 HPPA32_ELF_DATA,
494 HPPA64_ELF_DATA,
495 I386_ELF_DATA,
496 IA64_ELF_DATA,
497 LM32_ELF_DATA,
498 M32R_ELF_DATA,
499 M68HC11_ELF_DATA,
500 M68K_ELF_DATA,
a3c62988 501 METAG_ELF_DATA,
4dfe6ac6
NC
502 MICROBLAZE_ELF_DATA,
503 MIPS_ELF_DATA,
504 MN10300_ELF_DATA,
35c08157 505 NDS32_ELF_DATA,
36591ba1 506 NIOS2_ELF_DATA,
73589c9d 507 OR1K_ELF_DATA,
4dfe6ac6
NC
508 PPC32_ELF_DATA,
509 PPC64_ELF_DATA,
889294f6 510 PRU_ELF_DATA,
4dfe6ac6
NC
511 S390_ELF_DATA,
512 SH_ELF_DATA,
513 SPARC_ELF_DATA,
514 SPU_ELF_DATA,
41820509 515 TIC6X_ELF_DATA,
4dfe6ac6
NC
516 X86_64_ELF_DATA,
517 XTENSA_ELF_DATA,
f6c1a2d5 518 XGATE_ELF_DATA,
aa137e4d
NC
519 TILEGX_ELF_DATA,
520 TILEPRO_ELF_DATA,
e23eba97 521 RISCV_ELF_DATA,
4dfe6ac6
NC
522 GENERIC_ELF_DATA
523};
524
ef10c3ac
L
525struct elf_sym_strtab
526{
527 Elf_Internal_Sym sym;
528 unsigned long dest_index;
529 unsigned long destshndx_index;
530};
531
252b5132
RH
532/* ELF linker hash table. */
533
534struct elf_link_hash_table
535{
536 struct bfd_link_hash_table root;
51b64d56 537
4dfe6ac6
NC
538 /* An identifier used to distinguish different target
539 specific extensions to this structure. */
540 enum elf_target_id hash_table_id;
541
252b5132
RH
542 /* Whether we have created the special dynamic sections required
543 when linking against or generating a shared object. */
b34976b6 544 bfd_boolean dynamic_sections_created;
51b64d56 545
74541ad4
AM
546 /* True if this target has relocatable executables, so needs dynamic
547 section symbols. */
548 bfd_boolean is_relocatable_executable;
549
252b5132
RH
550 /* The BFD used to hold special sections created by the linker.
551 This will be the first BFD found which requires these sections to
552 be created. */
553 bfd *dynobj;
51b64d56
AM
554
555 /* The value to use when initialising got.refcount/offset and
556 plt.refcount/offset in an elf_link_hash_entry. Set to zero when
a6aa5195
AM
557 the values are refcounts. Set to init_got_offset/init_plt_offset
558 in size_dynamic_sections when the values may be offsets. */
559 union gotplt_union init_got_refcount;
560 union gotplt_union init_plt_refcount;
5cab59f6
AM
561
562 /* The value to use for got.refcount/offset and plt.refcount/offset
563 when the values may be offsets. Normally (bfd_vma) -1. */
a6aa5195
AM
564 union gotplt_union init_got_offset;
565 union gotplt_union init_plt_offset;
51b64d56 566
d5486c43
L
567 /* The number of symbols found in the link which is intended for the
568 mandatory DT_SYMTAB tag (.dynsym section) in .dynamic section. */
252b5132 569 bfd_size_type dynsymcount;
90ac2420 570 bfd_size_type local_dynsymcount;
51b64d56 571
252b5132
RH
572 /* The string table of dynamic symbols, which becomes the .dynstr
573 section. */
2b0f7ef9 574 struct elf_strtab_hash *dynstr;
51b64d56 575
ef10c3ac
L
576 /* The number of symbol strings found in the link which must be put
577 into the .strtab section. */
578 bfd_size_type strtabcount;
579
580 /* The array size of the symbol string table, which becomes the
581 .strtab section. */
582 bfd_size_type strtabsize;
583
584 /* The array of strings, which becomes the .strtab section. */
585 struct elf_sym_strtab *strtab;
586
252b5132
RH
587 /* The number of buckets in the hash table in the .hash section.
588 This is based on the number of dynamic symbols. */
589 bfd_size_type bucketcount;
51b64d56 590
252b5132
RH
591 /* A linked list of DT_NEEDED names found in dynamic objects
592 included in the link. */
593 struct bfd_link_needed_list *needed;
51b64d56 594
74541ad4
AM
595 /* Sections in the output bfd that provides a section symbol
596 to be used by relocations emitted against local symbols.
597 Most targets will not use data_index_section. */
598 asection *text_index_section;
599 asection *data_index_section;
600
252b5132
RH
601 /* The _GLOBAL_OFFSET_TABLE_ symbol. */
602 struct elf_link_hash_entry *hgot;
51b64d56 603
7325306f
RS
604 /* The _PROCEDURE_LINKAGE_TABLE_ symbol. */
605 struct elf_link_hash_entry *hplt;
606
9637f6ef
L
607 /* The _DYNAMIC symbol. */
608 struct elf_link_hash_entry *hdynamic;
609
f5fa8ca2 610 /* A pointer to information used to merge SEC_MERGE sections. */
c39a58e6 611 void *merge_info;
51b64d56 612
3722b82f
AM
613 /* Used to link stabs in sections. */
614 struct stab_info stab_info;
615
126495ed
AM
616 /* Used by eh_frame code when editing .eh_frame. */
617 struct eh_frame_hdr_info eh_info;
618
30b30c21
RH
619 /* A linked list of local symbols to be added to .dynsym. */
620 struct elf_link_local_dynamic_entry *dynlocal;
51b64d56 621
a963dc6a
L
622 /* A linked list of DT_RPATH/DT_RUNPATH names found in dynamic
623 objects included in the link. */
624 struct bfd_link_needed_list *runpath;
13ae64f3 625
e1918d23
AM
626 /* Cached first output tls section and size of PT_TLS segment. */
627 asection *tls_sec;
628 bfd_size_type tls_size;
f5d44ba0
AM
629
630 /* A linked list of BFD's loaded in the link. */
631 struct elf_link_loaded_list *loaded;
6de2ae4a
L
632
633 /* Short-cuts to get to dynamic linker sections. */
634 asection *sgot;
635 asection *sgotplt;
636 asection *srelgot;
637 asection *splt;
638 asection *srelplt;
9d19e4fd
AM
639 asection *sdynbss;
640 asection *srelbss;
5474d94f
AM
641 asection *sdynrelro;
642 asection *sreldynrelro;
6de2ae4a
L
643 asection *igotplt;
644 asection *iplt;
645 asection *irelplt;
646 asection *irelifunc;
cae1fbbb 647 asection *dynsym;
252b5132
RH
648};
649
650/* Look up an entry in an ELF linker hash table. */
651
652#define elf_link_hash_lookup(table, string, create, copy, follow) \
653 ((struct elf_link_hash_entry *) \
654 bfd_link_hash_lookup (&(table)->root, (string), (create), \
655 (copy), (follow)))
656
657/* Traverse an ELF linker hash table. */
658
659#define elf_link_hash_traverse(table, func, info) \
660 (bfd_link_hash_traverse \
661 (&(table)->root, \
c39a58e6 662 (bfd_boolean (*) (struct bfd_link_hash_entry *, void *)) (func), \
252b5132
RH
663 (info)))
664
665/* Get the ELF linker hash table from a link_info structure. */
666
667#define elf_hash_table(p) ((struct elf_link_hash_table *) ((p)->hash))
8ea2e4bd 668
4dfe6ac6
NC
669#define elf_hash_table_id(table) ((table) -> hash_table_id)
670
b34976b6 671/* Returns TRUE if the hash table is a struct elf_link_hash_table. */
07d6d2b8 672#define is_elf_hash_table(htab) \
0eddce27 673 (((struct bfd_link_hash_table *) (htab))->type == bfd_link_elf_hash_table)
ec338859 674
87d72d41
AM
675/* Used by bfd_sym_from_r_symndx to cache a small number of local
676 symbols. */
ec338859 677#define LOCAL_SYM_CACHE_SIZE 32
87d72d41 678struct sym_cache
ec338859
AM
679{
680 bfd *abfd;
681 unsigned long indx[LOCAL_SYM_CACHE_SIZE];
87d72d41 682 Elf_Internal_Sym sym[LOCAL_SYM_CACHE_SIZE];
ec338859 683};
252b5132
RH
684\f
685/* Constant information held for an ELF backend. */
686
687struct elf_size_info {
688 unsigned char sizeof_ehdr, sizeof_phdr, sizeof_shdr;
689 unsigned char sizeof_rel, sizeof_rela, sizeof_sym, sizeof_dyn, sizeof_note;
690
c7ac6ff8
MM
691 /* The size of entries in the .hash section. */
692 unsigned char sizeof_hash_entry;
693
694 /* The number of internal relocations to allocate per external
695 relocation entry. */
696 unsigned char int_rels_per_ext_rel;
947216bf
AM
697 /* We use some fixed size arrays. This should be large enough to
698 handle all back-ends. */
699#define MAX_INT_RELS_PER_EXT_REL 3
c7ac6ff8 700
45d6a902 701 unsigned char arch_size, log_file_align;
252b5132 702 unsigned char elfclass, ev_current;
dc810e39 703 int (*write_out_phdrs)
c39a58e6
AM
704 (bfd *, const Elf_Internal_Phdr *, unsigned int);
705 bfd_boolean
706 (*write_shdrs_and_ehdr) (bfd *);
20a761b5
RM
707 bfd_boolean (*checksum_contents)
708 (bfd * , void (*) (const void *, size_t, void *), void *);
dc810e39 709 void (*write_relocs)
c39a58e6 710 (bfd *, asection *, void *);
8384fb8f 711 bfd_boolean (*swap_symbol_in)
c39a58e6 712 (bfd *, const void *, const void *, Elf_Internal_Sym *);
dc810e39 713 void (*swap_symbol_out)
c39a58e6 714 (bfd *, const Elf_Internal_Sym *, void *, void *);
b34976b6 715 bfd_boolean (*slurp_reloc_table)
c39a58e6 716 (bfd *, asection *, asymbol **, bfd_boolean);
dc810e39 717 long (*slurp_symbol_table)
c39a58e6 718 (bfd *, asymbol **, bfd_boolean);
dc810e39 719 void (*swap_dyn_in)
c39a58e6 720 (bfd *, const void *, Elf_Internal_Dyn *);
dc810e39 721 void (*swap_dyn_out)
c39a58e6 722 (bfd *, const Elf_Internal_Dyn *, void *);
c7ac6ff8 723
947216bf
AM
724 /* This function is called to swap in a REL relocation. If an
725 external relocation corresponds to more than one internal
726 relocation, then all relocations are swapped in at once. */
c7ac6ff8 727 void (*swap_reloc_in)
c39a58e6 728 (bfd *, const bfd_byte *, Elf_Internal_Rela *);
c7ac6ff8 729
947216bf 730 /* This function is called to swap out a REL relocation. */
c7ac6ff8 731 void (*swap_reloc_out)
c39a58e6 732 (bfd *, const Elf_Internal_Rela *, bfd_byte *);
c7ac6ff8 733
947216bf
AM
734 /* This function is called to swap in a RELA relocation. If an
735 external relocation corresponds to more than one internal
736 relocation, then all relocations are swapped in at once. */
c7ac6ff8 737 void (*swap_reloca_in)
c39a58e6 738 (bfd *, const bfd_byte *, Elf_Internal_Rela *);
c7ac6ff8 739
947216bf 740 /* This function is called to swap out a RELA relocation. */
c7ac6ff8 741 void (*swap_reloca_out)
c39a58e6 742 (bfd *, const Elf_Internal_Rela *, bfd_byte *);
252b5132
RH
743};
744
745#define elf_symbol_from(ABFD,S) \
0ee5a0e4
AM
746 (((S)->the_bfd != NULL \
747 && (S)->the_bfd->xvec->flavour == bfd_target_elf_flavour \
748 && (S)->the_bfd->tdata.elf_obj_data != 0) \
749 ? (elf_symbol_type *) (S) \
750 : 0)
252b5132 751
db6751f2
JJ
752enum elf_reloc_type_class {
753 reloc_class_normal,
754 reloc_class_relative,
7e612e98 755 reloc_class_copy,
1997c994
AM
756 reloc_class_ifunc,
757 reloc_class_plt
db6751f2
JJ
758};
759
73d074b4
DJ
760struct elf_reloc_cookie
761{
762 Elf_Internal_Rela *rels, *rel, *relend;
6cdc0ccc 763 Elf_Internal_Sym *locsyms;
73d074b4
DJ
764 bfd *abfd;
765 size_t locsymcount;
766 size_t extsymoff;
767 struct elf_link_hash_entry **sym_hashes;
140f6c8e 768 int r_sym_shift;
b34976b6 769 bfd_boolean bad_symtab;
73d074b4
DJ
770};
771
c6e90b02
TS
772/* The level of IRIX compatibility we're striving for. */
773
774typedef enum {
775 ict_none,
776 ict_irix5,
777 ict_irix6
778} irix_compat_t;
779
2f89ff8d
L
780/* Mapping of ELF section names and types. */
781struct bfd_elf_special_section
782{
783 const char *prefix;
9fb71ee4 784 unsigned int prefix_length;
7dcb9820
AM
785 /* 0 means name must match PREFIX exactly.
786 -1 means name must start with PREFIX followed by an arbitrary string.
787 -2 means name must match PREFIX exactly or consist of PREFIX followed
788 by a dot then anything.
789 > 0 means name must start with the first PREFIX_LENGTH chars of
790 PREFIX and finish with the last SUFFIX_LENGTH chars of PREFIX. */
9fb71ee4
NC
791 signed int suffix_length;
792 unsigned int type;
01e1a5bc 793 bfd_vma attr;
2f89ff8d
L
794};
795
8a696751
AM
796enum action_discarded
797 {
798 COMPLAIN = 1,
799 PRETEND = 2
800 };
801
6a5bb875
PB
802typedef asection * (*elf_gc_mark_hook_fn)
803 (asection *, struct bfd_link_info *, Elf_Internal_Rela *,
804 struct elf_link_hash_entry *, Elf_Internal_Sym *);
805
46bed679
L
806enum elf_property_kind
807 {
808 /* A new property. */
809 property_unknown = 0,
810 /* A property ignored by backend. */
811 property_ignored,
812 /* A corrupt property reported by backend. */
813 property_corrupt,
814 /* A property should be removed due to property merge. */
815 property_remove,
816 /* A property which is a number. */
817 property_number
818 };
819
820typedef struct elf_property
821{
822 unsigned int pr_type;
823 unsigned int pr_datasz;
824 union
825 {
826 /* For property_number, this is a number. */
827 bfd_vma number;
828 /* Add a new one if elf_property_kind is updated. */
829 } u;
830 enum elf_property_kind pr_kind;
831} elf_property;
832
833typedef struct elf_property_list
834{
835 struct elf_property_list *next;
836 struct elf_property property;
837} elf_property_list;
838
9eaff861
AO
839struct bfd_elf_section_reloc_data;
840
252b5132
RH
841struct elf_backend_data
842{
252b5132
RH
843 /* The architecture for this backend. */
844 enum bfd_architecture arch;
845
ae95ffa6
L
846 /* An identifier used to distinguish different target specific
847 extensions to elf_obj_tdata and elf_link_hash_table structures. */
848 enum elf_target_id target_id;
849
252b5132
RH
850 /* The ELF machine code (EM_xxxx) for this backend. */
851 int elf_machine_code;
852
9eaff861 853 /* EI_OSABI. */
d1036acb
L
854 int elf_osabi;
855
252b5132
RH
856 /* The maximum page size for this backend. */
857 bfd_vma maxpagesize;
858
b1342370
DJ
859 /* The minimum page size for this backend. An input object will not be
860 considered page aligned unless its sections are correctly aligned for
861 pages at least this large. May be smaller than maxpagesize. */
862 bfd_vma minpagesize;
863
24718e3b
L
864 /* The common page size for this backend. */
865 bfd_vma commonpagesize;
866
702d1671
AM
867 /* The value of commonpagesize to use when -z relro for this backend. */
868 bfd_vma relropagesize;
869
e5a52504
MM
870 /* The BFD flags applied to sections created for dynamic linking. */
871 flagword dynamic_sec_flags;
872
23209a78
RM
873 /* Architecture-specific data for this backend.
874 This is actually a pointer to some type like struct elf_ARCH_data. */
875 const void *arch_data;
876
252b5132 877 /* A function to translate an ELF RELA relocation to a BFD arelent
f3185997
NC
878 structure. Returns TRUE upon success, FALSE otherwise. */
879 bfd_boolean (*elf_info_to_howto)
c39a58e6 880 (bfd *, arelent *, Elf_Internal_Rela *);
252b5132
RH
881
882 /* A function to translate an ELF REL relocation to a BFD arelent
f3185997
NC
883 structure. Returns TRUE upon success, FALSE otherwise. */
884 bfd_boolean (*elf_info_to_howto_rel)
c39a58e6 885 (bfd *, arelent *, Elf_Internal_Rela *);
252b5132
RH
886
887 /* A function to determine whether a symbol is global when
888 partitioning the symbol table into local and global symbols.
889 This should be NULL for most targets, in which case the correct
890 thing will be done. MIPS ELF, at least on the Irix 5, has
891 special requirements. */
b34976b6 892 bfd_boolean (*elf_backend_sym_is_global)
c39a58e6 893 (bfd *, asymbol *);
252b5132
RH
894
895 /* The remaining functions are hooks which are called only if they
896 are not NULL. */
897
898 /* A function to permit a backend specific check on whether a
899 particular BFD format is relevant for an object file, and to
900 permit the backend to set any global information it wishes. When
901 this is called elf_elfheader is set, but anything else should be
b34976b6 902 used with caution. If this returns FALSE, the check_format
252b5132 903 routine will return a bfd_error_wrong_format error. */
b34976b6 904 bfd_boolean (*elf_backend_object_p)
c39a58e6 905 (bfd *);
252b5132
RH
906
907 /* A function to do additional symbol processing when reading the
908 ELF symbol table. This is where any processor-specific special
909 section indices are handled. */
dc810e39 910 void (*elf_backend_symbol_processing)
c39a58e6 911 (bfd *, asymbol *);
252b5132
RH
912
913 /* A function to do additional symbol processing after reading the
914 entire ELF symbol table. */
b34976b6 915 bfd_boolean (*elf_backend_symbol_table_processing)
c39a58e6 916 (bfd *, elf_symbol_type *, unsigned int);
252b5132 917
8387904d 918 /* A function to set the type of the info field. Processor-specific
3e932841 919 types should be handled here. */
dc810e39 920 int (*elf_backend_get_symbol_type)
c39a58e6 921 (Elf_Internal_Sym *, int);
60bcf0fa 922
8387904d
AM
923 /* A function to return the linker hash table entry of a symbol that
924 might be satisfied by an archive symbol. */
925 struct elf_link_hash_entry * (*elf_backend_archive_symbol_lookup)
926 (bfd *, struct bfd_link_info *, const char *);
927
174fd7f9
RS
928 /* Return true if local section symbols should have a non-null st_name.
929 NULL implies false. */
930 bfd_boolean (*elf_backend_name_local_section_symbols)
931 (bfd *);
932
252b5132
RH
933 /* A function to do additional processing on the ELF section header
934 just before writing it out. This is used to set the flags and
935 type fields for some sections, or to actually write out data for
936 unusual sections. */
b34976b6 937 bfd_boolean (*elf_backend_section_processing)
c39a58e6 938 (bfd *, Elf_Internal_Shdr *);
252b5132
RH
939
940 /* A function to handle unusual section types when creating BFD
941 sections from ELF sections. */
b34976b6 942 bfd_boolean (*elf_backend_section_from_shdr)
6dc132d9 943 (bfd *, Elf_Internal_Shdr *, const char *, int);
252b5132 944
551b43fd 945 /* A function to convert machine dependent ELF section header flags to
fa152c49 946 BFD internal section header flags. */
b34976b6 947 bfd_boolean (*elf_backend_section_flags)
1829f4b2 948 (flagword *, const Elf_Internal_Shdr *);
fa152c49 949
551b43fd
AM
950 /* A function that returns a struct containing ELF section flags and
951 type for the given BFD section. */
952 const struct bfd_elf_special_section * (*get_sec_type_attr)
953 (bfd *, asection *);
954
20cfcaae 955 /* A function to handle unusual program segment types when creating BFD
3e932841 956 sections from ELF program segments. */
b34976b6 957 bfd_boolean (*elf_backend_section_from_phdr)
d27f5fa1 958 (bfd *, Elf_Internal_Phdr *, int, const char *);
20cfcaae 959
252b5132
RH
960 /* A function to set up the ELF section header for a BFD section in
961 preparation for writing it out. This is where the flags and type
962 fields are set for unusual sections. */
b34976b6 963 bfd_boolean (*elf_backend_fake_sections)
c39a58e6 964 (bfd *, Elf_Internal_Shdr *, asection *);
252b5132
RH
965
966 /* A function to get the ELF section index for a BFD section. If
b34976b6 967 this returns TRUE, the section was found. If it is a normal ELF
252b5132
RH
968 section, *RETVAL should be left unchanged. If it is not a normal
969 ELF section *RETVAL should be set to the SHN_xxxx index. */
b34976b6 970 bfd_boolean (*elf_backend_section_from_bfd_section)
c39a58e6 971 (bfd *, asection *, int *retval);
252b5132
RH
972
973 /* If this field is not NULL, it is called by the add_symbols phase
974 of a link just before adding a symbol to the global linker hash
975 table. It may modify any of the fields as it wishes. If *NAME
976 is set to NULL, the symbol will be skipped rather than being
977 added to the hash table. This function is responsible for
978 handling all processor dependent symbol bindings and section
979 indices, and must set at least *FLAGS and *SEC for each processor
980 dependent case; failure to do so will cause a link error. */
b34976b6 981 bfd_boolean (*elf_add_symbol_hook)
555cd476 982 (bfd *abfd, struct bfd_link_info *info, Elf_Internal_Sym *,
c39a58e6 983 const char **name, flagword *flags, asection **sec, bfd_vma *value);
252b5132
RH
984
985 /* If this field is not NULL, it is called by the elf_link_output_sym
6e0b88f1
AM
986 phase of a link for each symbol which will appear in the object file.
987 On error, this function returns 0. 1 is returned when the symbol
988 should be output, 2 is returned when the symbol should be discarded. */
989 int (*elf_backend_link_output_symbol_hook)
754021d0
AM
990 (struct bfd_link_info *info, const char *, Elf_Internal_Sym *,
991 asection *, struct elf_link_hash_entry *);
252b5132
RH
992
993 /* The CREATE_DYNAMIC_SECTIONS function is called by the ELF backend
994 linker the first time it encounters a dynamic object in the link.
995 This function must create any sections required for dynamic
996 linking. The ABFD argument is a dynamic object. The .interp,
997 .dynamic, .dynsym, .dynstr, and .hash functions have already been
998 created, and this function may modify the section flags if
999 desired. This function will normally create the .got and .plt
1000 sections, but different backends have different requirements. */
b34976b6 1001 bfd_boolean (*elf_backend_create_dynamic_sections)
c39a58e6 1002 (bfd *abfd, struct bfd_link_info *info);
252b5132 1003
aee6f5b4
AO
1004 /* When creating a shared library, determine whether to omit the
1005 dynamic symbol for the section. */
1006 bfd_boolean (*elf_backend_omit_section_dynsym)
1007 (bfd *output_bfd, struct bfd_link_info *info, asection *osec);
1008
13285a1b
AM
1009 /* Return TRUE if relocations of targets are compatible to the extent
1010 that CHECK_RELOCS will properly process them. PR 4424. */
1011 bfd_boolean (*relocs_compatible) (const bfd_target *, const bfd_target *);
1012
252b5132
RH
1013 /* The CHECK_RELOCS function is called by the add_symbols phase of
1014 the ELF backend linker. It is called once for each section with
1015 relocs of an object file, just after the symbols for the object
1016 file have been added to the global linker hash table. The
1017 function must look through the relocs and do any special handling
1018 required. This generally means allocating space in the global
1019 offset table, and perhaps allocating space for a reloc. The
1020 relocs are always passed as Rela structures; if the section
1021 actually uses Rel structures, the r_addend field will always be
1022 zero. */
b34976b6 1023 bfd_boolean (*check_relocs)
c39a58e6
AM
1024 (bfd *abfd, struct bfd_link_info *info, asection *o,
1025 const Elf_Internal_Rela *relocs);
252b5132 1026
85fbca6a
NC
1027 /* The CHECK_DIRECTIVES function is called once per input file by
1028 the add_symbols phase of the ELF backend linker. The function
1029 must inspect the bfd and create any additional symbols according
1030 to any custom directives in the bfd. */
1031 bfd_boolean (*check_directives)
1032 (bfd *abfd, struct bfd_link_info *info);
1033
e5034e59
AM
1034 /* The NOTICE_AS_NEEDED function is called as the linker is about to
1035 handle an as-needed lib (ACT = notice_as_needed), and after the
1036 linker has decided to keep the lib (ACT = notice_needed) or when
1037 the lib is not needed (ACT = notice_not_needed). */
1038 bfd_boolean (*notice_as_needed)
1039 (bfd *abfd, struct bfd_link_info *info, enum notice_asneeded_action act);
97fed1c9 1040
252b5132
RH
1041 /* The ADJUST_DYNAMIC_SYMBOL function is called by the ELF backend
1042 linker for every symbol which is defined by a dynamic object and
1043 referenced by a regular object. This is called after all the
1044 input files have been seen, but before the SIZE_DYNAMIC_SECTIONS
1045 function has been called. The hash table entry should be
1046 bfd_link_hash_defined ore bfd_link_hash_defweak, and it should be
1047 defined in a section from a dynamic object. Dynamic object
1048 sections are not included in the final link, and this function is
1049 responsible for changing the value to something which the rest of
1050 the link can deal with. This will normally involve adding an
1051 entry to the .plt or .got or some such section, and setting the
1052 symbol to point to that. */
b34976b6 1053 bfd_boolean (*elf_backend_adjust_dynamic_symbol)
c39a58e6 1054 (struct bfd_link_info *info, struct elf_link_hash_entry *h);
252b5132
RH
1055
1056 /* The ALWAYS_SIZE_SECTIONS function is called by the backend linker
1057 after all the linker input files have been seen but before the
1058 section sizes have been set. This is called after
1059 ADJUST_DYNAMIC_SYMBOL, but before SIZE_DYNAMIC_SECTIONS. */
b34976b6 1060 bfd_boolean (*elf_backend_always_size_sections)
c39a58e6 1061 (bfd *output_bfd, struct bfd_link_info *info);
252b5132
RH
1062
1063 /* The SIZE_DYNAMIC_SECTIONS function is called by the ELF backend
1064 linker after all the linker input files have been seen but before
1065 the sections sizes have been set. This is called after
1066 ADJUST_DYNAMIC_SYMBOL has been called on all appropriate symbols.
1067 It is only called when linking against a dynamic object. It must
1068 set the sizes of the dynamic sections, and may fill in their
1069 contents as well. The generic ELF linker can handle the .dynsym,
1070 .dynstr and .hash sections. This function must handle the
1071 .interp section and any sections created by the
1072 CREATE_DYNAMIC_SECTIONS entry point. */
b34976b6 1073 bfd_boolean (*elf_backend_size_dynamic_sections)
c39a58e6 1074 (bfd *output_bfd, struct bfd_link_info *info);
252b5132 1075
74541ad4
AM
1076 /* Set TEXT_INDEX_SECTION and DATA_INDEX_SECTION, the output sections
1077 we keep to use as a base for relocs and symbols. */
1078 void (*elf_backend_init_index_section)
1079 (bfd *output_bfd, struct bfd_link_info *info);
1080
252b5132
RH
1081 /* The RELOCATE_SECTION function is called by the ELF backend linker
1082 to handle the relocations for a section.
1083
1084 The relocs are always passed as Rela structures; if the section
1085 actually uses Rel structures, the r_addend field will always be
1086 zero.
1087
1088 This function is responsible for adjust the section contents as
1089 necessary, and (if using Rela relocs and generating a
1049f94e 1090 relocatable output file) adjusting the reloc addend as
252b5132
RH
1091 necessary.
1092
1093 This function does not have to worry about setting the reloc
1094 address or the reloc symbol index.
1095
1096 LOCAL_SYMS is a pointer to the swapped in local symbols.
1097
1098 LOCAL_SECTIONS is an array giving the section in the input file
1099 corresponding to the st_shndx field of each local symbol.
1100
1101 The global hash table entry for the global symbols can be found
1102 via elf_sym_hashes (input_bfd).
1103
1049f94e 1104 When generating relocatable output, this function must handle
252b5132
RH
1105 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
1106 going to be the section symbol corresponding to the output
1107 section, which means that the addend must be adjusted
ece5ef60
AM
1108 accordingly.
1109
1110 Returns FALSE on error, TRUE on success, 2 if successful and
1111 relocations should be written for this section. */
1112 int (*elf_backend_relocate_section)
c39a58e6
AM
1113 (bfd *output_bfd, struct bfd_link_info *info, bfd *input_bfd,
1114 asection *input_section, bfd_byte *contents, Elf_Internal_Rela *relocs,
1115 Elf_Internal_Sym *local_syms, asection **local_sections);
252b5132
RH
1116
1117 /* The FINISH_DYNAMIC_SYMBOL function is called by the ELF backend
1118 linker just before it writes a symbol out to the .dynsym section.
1119 The processor backend may make any required adjustment to the
1120 symbol. It may also take the opportunity to set contents of the
1121 dynamic sections. Note that FINISH_DYNAMIC_SYMBOL is called on
1122 all .dynsym symbols, while ADJUST_DYNAMIC_SYMBOL is only called
1123 on those symbols which are defined by a dynamic object. */
b34976b6 1124 bfd_boolean (*elf_backend_finish_dynamic_symbol)
c39a58e6
AM
1125 (bfd *output_bfd, struct bfd_link_info *info,
1126 struct elf_link_hash_entry *h, Elf_Internal_Sym *sym);
252b5132
RH
1127
1128 /* The FINISH_DYNAMIC_SECTIONS function is called by the ELF backend
1129 linker just before it writes all the dynamic sections out to the
1130 output file. The FINISH_DYNAMIC_SYMBOL will have been called on
1131 all dynamic symbols. */
b34976b6 1132 bfd_boolean (*elf_backend_finish_dynamic_sections)
c39a58e6 1133 (bfd *output_bfd, struct bfd_link_info *info);
252b5132
RH
1134
1135 /* A function to do any beginning processing needed for the ELF file
1136 before building the ELF headers and computing file positions. */
1137 void (*elf_backend_begin_write_processing)
c39a58e6 1138 (bfd *, struct bfd_link_info *);
252b5132
RH
1139
1140 /* A function to do any final processing needed for the ELF file
b34976b6 1141 before writing it out. The LINKER argument is TRUE if this BFD
252b5132
RH
1142 was created by the ELF backend linker. */
1143 void (*elf_backend_final_write_processing)
c39a58e6 1144 (bfd *, bfd_boolean linker);
252b5132
RH
1145
1146 /* This function is called by get_program_header_size. It should
1147 return the number of additional program segments which this BFD
1148 will need. It should return -1 on error. */
dc810e39 1149 int (*elf_backend_additional_program_headers)
a6b96beb 1150 (bfd *, struct bfd_link_info *);
252b5132
RH
1151
1152 /* This function is called to modify an existing segment map in a
1153 backend specific fashion. */
b34976b6 1154 bfd_boolean (*elf_backend_modify_segment_map)
c84fca4d 1155 (bfd *, struct bfd_link_info *);
252b5132 1156
e36284ab
AM
1157 /* This function is called to modify program headers just before
1158 they are written. */
1159 bfd_boolean (*elf_backend_modify_program_headers)
1160 (bfd *, struct bfd_link_info *);
1161
1a9ccd70
NC
1162 /* This function is called to see if the PHDR header should be
1163 checked for validity. */
1164 bfd_boolean (*elf_backend_allow_non_load_phdr)
1165 (bfd *, const Elf_Internal_Phdr *, unsigned);
1166
74f0fb50
AM
1167 /* This function is called before section garbage collection to
1168 mark entry symbol sections. */
1169 void (*gc_keep)
1170 (struct bfd_link_info *);
1171
64d03ab5
AM
1172 /* This function is called during section garbage collection to
1173 mark sections that define global symbols. */
1174 bfd_boolean (*gc_mark_dynamic_ref)
74f0fb50 1175 (struct elf_link_hash_entry *, void *);
64d03ab5 1176
252b5132 1177 /* This function is called during section gc to discover the section a
1e2f5b6e 1178 particular relocation refers to. */
6a5bb875
PB
1179 elf_gc_mark_hook_fn gc_mark_hook;
1180
1181 /* This function, if defined, is called after the first gc marking pass
1182 to allow the backend to mark additional sections. */
1183 bfd_boolean (*gc_mark_extra_sections)
74f0fb50 1184 (struct bfd_link_info *, elf_gc_mark_hook_fn);
252b5132 1185
e6c51ed4
NC
1186 /* This function, if defined, is called after the ELF headers have
1187 been created. This allows for things like the OS and ABI versions
1188 to be changed. */
1189 void (*elf_backend_post_process_headers)
c39a58e6 1190 (bfd *, struct bfd_link_info *);
e6c51ed4 1191
587ff49e
RH
1192 /* This function, if defined, prints a symbol to file and returns the
1193 name of the symbol to be printed. It should return NULL to fall
1194 back to default symbol printing. */
1195 const char *(*elf_backend_print_symbol_all)
c39a58e6 1196 (bfd *, void *, asymbol *);
587ff49e
RH
1197
1198 /* This function, if defined, is called after all local symbols and
4cc11e76 1199 global symbols converted to locals are emitted into the symtab
4e617b1e 1200 section. It allows the backend to emit special local symbols
587ff49e 1201 not handled in the hash table. */
4e617b1e
PB
1202 bfd_boolean (*elf_backend_output_arch_local_syms)
1203 (bfd *, struct bfd_link_info *, void *,
1204 bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *,
1205 struct elf_link_hash_entry *));
1206
1207 /* This function, if defined, is called after all symbols are emitted
1208 into the symtab section. It allows the backend to emit special
1209 global symbols not handled in the hash table. */
b34976b6 1210 bfd_boolean (*elf_backend_output_arch_syms)
c39a58e6 1211 (bfd *, struct bfd_link_info *, void *,
754021d0
AM
1212 bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *,
1213 struct elf_link_hash_entry *));
587ff49e 1214
76359541
TP
1215 /* Filter what symbols of the output file to include in the import
1216 library if one is created. */
1217 unsigned int (*elf_backend_filter_implib_symbols)
1218 (bfd *, struct bfd_link_info *, asymbol **, long);
1219
d4c88bbb 1220 /* Copy any information related to dynamic linking from a pre-existing
0a991dfe
AM
1221 symbol to a newly created symbol. Also called to copy flags and
1222 other back-end info to a weakdef, in which case the symbol is not
1223 newly created and plt/got refcounts and dynamic indices should not
1224 be copied. */
c61b8717 1225 void (*elf_backend_copy_indirect_symbol)
fcfa13d2 1226 (struct bfd_link_info *, struct elf_link_hash_entry *,
c39a58e6 1227 struct elf_link_hash_entry *);
c61b8717
RH
1228
1229 /* Modify any information related to dynamic linking such that the
1230 symbol is not exported. */
1231 void (*elf_backend_hide_symbol)
c39a58e6 1232 (struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean);
c61b8717 1233
508c3946
L
1234 /* A function to do additional symbol fixup, called by
1235 _bfd_elf_fix_symbol_flags. */
1236 bfd_boolean (*elf_backend_fixup_symbol)
1237 (struct bfd_link_info *, struct elf_link_hash_entry *);
1238
9bf7216d
KK
1239 /* Merge the backend specific symbol attribute. */
1240 void (*elf_backend_merge_symbol_attribute)
1241 (struct elf_link_hash_entry *, const Elf_Internal_Sym *, bfd_boolean,
1242 bfd_boolean);
1243
ad9563d6
CM
1244 /* This function, if defined, will return a string containing the
1245 name of a target-specific dynamic tag. */
1246 char *(*elf_backend_get_target_dtag)
1247 (bfd_vma);
1248
12ac1cf5
NC
1249 /* Decide whether an undefined symbol is special and can be ignored.
1250 This is the case for OPTIONAL symbols on IRIX. */
1251 bfd_boolean (*elf_backend_ignore_undef_symbol)
1252 (struct elf_link_hash_entry *);
1253
9317eacc
CM
1254 /* Emit relocations. Overrides default routine for emitting relocs,
1255 except during a relocatable link, or if all relocs are being emitted. */
b34976b6 1256 bfd_boolean (*elf_backend_emit_relocs)
eac338cf
PB
1257 (bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *,
1258 struct elf_link_hash_entry **);
9317eacc 1259
9eaff861
AO
1260 /* Update relocations. It is allowed to change the number and the order.
1261 In such a case hashes should be invalidated. */
1262 void (*elf_backend_update_relocs)
1263 (asection *, struct bfd_elf_section_reloc_data *);
1264
9317eacc
CM
1265 /* Count relocations. Not called for relocatable links
1266 or if all relocs are being preserved in the output. */
1267 unsigned int (*elf_backend_count_relocs)
58217f29 1268 (struct bfd_link_info *, asection *);
9317eacc 1269
491d01d3
YU
1270 /* Count additionals relocations. Called for relocatable links if
1271 additional relocations needs to be created. */
1272 unsigned int (*elf_backend_count_additional_relocs)
1273 (asection *);
1274
28dbcedc
AM
1275 /* Say whether to sort relocs output by ld -r and ld --emit-relocs,
1276 by r_offset. If NULL, default to true. */
1277 bfd_boolean (*sort_relocs_p)
1278 (asection *);
1279
bb0082d6 1280 /* This function, if defined, is called when an NT_PRSTATUS note is found
183e98be 1281 in a core file. */
b34976b6 1282 bfd_boolean (*elf_backend_grok_prstatus)
c39a58e6 1283 (bfd *, Elf_Internal_Note *);
bb0082d6
AM
1284
1285 /* This function, if defined, is called when an NT_PSINFO or NT_PRPSINFO
183e98be 1286 note is found in a core file. */
b34976b6 1287 bfd_boolean (*elf_backend_grok_psinfo)
c39a58e6 1288 (bfd *, Elf_Internal_Note *);
bb0082d6 1289
544c67cd
JB
1290 /* This function, if defined, is called when a "FreeBSD" NT_PRSTATUS
1291 note is found in a core file. */
1292 bfd_boolean (*elf_backend_grok_freebsd_prstatus)
1293 (bfd *, Elf_Internal_Note *);
1294
183e98be
AM
1295 /* This function, if defined, is called to write a note to a corefile. */
1296 char *(*elf_backend_write_core_note)
1297 (bfd *abfd, char *buf, int *bufsiz, int note_type, ...);
1298
ae17ab41
CM
1299 /* This function, if defined, is called to convert target-specific
1300 section flag names into hex values. */
1301 flagword (*elf_backend_lookup_section_flags_hook)
1302 (char *);
1303
db6751f2 1304 /* This function returns class of a reloc type. */
f51e552e 1305 enum elf_reloc_type_class (*elf_backend_reloc_type_class)
7e612e98 1306 (const struct bfd_link_info *, const asection *, const Elf_Internal_Rela *);
db6751f2 1307
73d074b4
DJ
1308 /* This function, if defined, removes information about discarded functions
1309 from other sections which mention them. */
b34976b6 1310 bfd_boolean (*elf_backend_discard_info)
c39a58e6 1311 (bfd *, struct elf_reloc_cookie *, struct bfd_link_info *);
73d074b4
DJ
1312
1313 /* This function, if defined, signals that the function above has removed
1314 the discarded relocations for this section. */
b34976b6 1315 bfd_boolean (*elf_backend_ignore_discarded_relocs)
c39a58e6 1316 (asection *);
73d074b4 1317
8a696751
AM
1318 /* What to do when ld finds relocations against symbols defined in
1319 discarded sections. */
1320 unsigned int (*action_discarded)
1321 (asection *);
1322
8c946ed5
RS
1323 /* This function returns the width of FDE pointers in bytes, or 0 if
1324 that can't be determined for some reason. The default definition
1325 goes by the bfd's EI_CLASS. */
1326 unsigned int (*elf_backend_eh_frame_address_size)
76c20d54 1327 (bfd *, const asection *);
8c946ed5 1328
ec3391e7
AO
1329 /* These functions tell elf-eh-frame whether to attempt to turn
1330 absolute or lsda encodings into pc-relative ones. The default
1331 definition enables these transformations. */
1332 bfd_boolean (*elf_backend_can_make_relative_eh_frame)
1333 (bfd *, struct bfd_link_info *, asection *);
1334 bfd_boolean (*elf_backend_can_make_lsda_relative_eh_frame)
1335 (bfd *, struct bfd_link_info *, asection *);
1336
1337 /* This function returns an encoding after computing the encoded
1338 value (and storing it in ENCODED) for the given OFFSET into OSEC,
1339 to be stored in at LOC_OFFSET into the LOC_SEC input section.
1340 The default definition chooses a 32-bit PC-relative encoding. */
1341 bfd_byte (*elf_backend_encode_eh_address)
1342 (bfd *abfd, struct bfd_link_info *info,
1343 asection *osec, bfd_vma offset,
1344 asection *loc_sec, bfd_vma loc_offset,
1345 bfd_vma *encoded);
1346
73d074b4 1347 /* This function, if defined, may write out the given section.
b34976b6
AM
1348 Returns TRUE if it did so and FALSE if the caller should. */
1349 bfd_boolean (*elf_backend_write_section)
c7b8f16e 1350 (bfd *, struct bfd_link_info *, asection *, bfd_byte *);
73d074b4 1351
c6e90b02
TS
1352 /* The level of IRIX compatibility we're striving for.
1353 MIPS ELF specific function. */
1354 irix_compat_t (*elf_backend_mips_irix_compat)
c39a58e6 1355 (bfd *);
c6e90b02
TS
1356
1357 reloc_howto_type *(*elf_backend_mips_rtype_to_howto)
0aa13fee 1358 (bfd *, unsigned int, bfd_boolean);
c6e90b02 1359
252b5132
RH
1360 /* The swapping table to use when dealing with ECOFF information.
1361 Used for the MIPS ELF .mdebug section. */
1362 const struct ecoff_debug_swap *elf_backend_ecoff_debug_swap;
1363
8d6337fe
RM
1364 /* This function implements `bfd_elf_bfd_from_remote_memory';
1365 see elf.c, elfcode.h. */
1366 bfd *(*elf_backend_bfd_from_remote_memory)
f0a5d95a 1367 (bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep,
5979d6b6
AM
1368 int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr,
1369 bfd_size_type len));
8d6337fe 1370
4c45e5c9
JJ
1371 /* This function is used by `_bfd_elf_get_synthetic_symtab';
1372 see elf.c. */
1373 bfd_vma (*plt_sym_val) (bfd_vma, const asection *, const arelent *);
1374
a4d8e49b
L
1375 /* Is symbol defined in common section? */
1376 bfd_boolean (*common_definition) (Elf_Internal_Sym *);
1377
1378 /* Return a common section index for section. */
1379 unsigned int (*common_section_index) (asection *);
1380
1381 /* Return a common section for section. */
1382 asection *(*common_section) (asection *);
1383
1384 /* Return TRUE if we can merge 2 definitions. */
5d13b3b3
AM
1385 bfd_boolean (*merge_symbol) (struct elf_link_hash_entry *,
1386 const Elf_Internal_Sym *, asection **,
1387 bfd_boolean, bfd_boolean,
1388 bfd *, const asection *);
a4d8e49b 1389
fdc90cb4
JJ
1390 /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
1391 bfd_boolean (*elf_hash_symbol) (struct elf_link_hash_entry *);
1392
fcb93ecf
PB
1393 /* Return TRUE if type is a function symbol type. */
1394 bfd_boolean (*is_function_type) (unsigned int type);
1395
aef36ac1
AM
1396 /* If the ELF symbol SYM might be a function in SEC, return the
1397 function size and set *CODE_OFF to the function's entry point,
1398 otherwise return zero. */
1399 bfd_size_type (*maybe_function_sym) (const asymbol *sym, asection *sec,
1400 bfd_vma *code_off);
9f296da3 1401
bce964aa
AM
1402 /* Given NAME, the name of a relocation section stripped of its
1403 .rel/.rela prefix, return the section in ABFD to which the
1404 relocations apply. */
1405 asection *(*get_reloc_section) (bfd *abfd, const char *name);
bd53a53a 1406
5522f910
NC
1407 /* Called to set the sh_flags, sh_link and sh_info fields of OSECTION which
1408 has a type >= SHT_LOOS. Returns TRUE if the fields were initialised,
1409 FALSE otherwise. Can be called multiple times for a given section,
1410 until it returns TRUE. Most of the times it is called ISECTION will be
1411 set to an input section that might be associated with the output section.
1412 The last time that it is called, ISECTION will be set to NULL. */
1413 bfd_boolean (*elf_backend_copy_special_section_fields)
1414 (const bfd *ibfd, bfd *obfd, const Elf_Internal_Shdr *isection,
1415 Elf_Internal_Shdr *osection);
07d6d2b8 1416
185d09ad 1417 /* Used to handle bad SHF_LINK_ORDER input. */
52d45da3 1418 void (*link_order_error_handler) (const char *, ...);
185d09ad 1419
4c45e5c9
JJ
1420 /* Name of the PLT relocation section. */
1421 const char *relplt_name;
1422
252b5132
RH
1423 /* Alternate EM_xxxx machine codes for this backend. */
1424 int elf_machine_alt1;
1425 int elf_machine_alt2;
1426
1427 const struct elf_size_info *s;
1428
29ef7005
L
1429 /* An array of target specific special sections. */
1430 const struct bfd_elf_special_section *special_sections;
1431
6f2f2c9d
DJ
1432 /* The size in bytes of the header for the GOT. This includes the
1433 so-called reserved entries on some systems. */
252b5132 1434 bfd_vma got_header_size;
252b5132 1435
10455f89
HPN
1436 /* The size of the GOT entry for the symbol pointed to by H if non-NULL,
1437 otherwise by the local symbol with index SYMNDX in IBFD. */
1438 bfd_vma (*got_elt_size) (bfd *, struct bfd_link_info *,
1439 struct elf_link_hash_entry *h,
1440 bfd *ibfd, unsigned long symndx);
1441
104d59d1
JM
1442 /* The vendor name to use for a processor-standard attributes section. */
1443 const char *obj_attrs_vendor;
1444
1445 /* The section name to use for a processor-standard attributes section. */
1446 const char *obj_attrs_section;
1447
1448 /* Return 1, 2 or 3 to indicate what type of arguments a
1449 processor-specific tag takes. */
1450 int (*obj_attrs_arg_type) (int);
1451
1452 /* The section type to use for an attributes section. */
1453 unsigned int obj_attrs_section_type;
1454
3de4a297
JM
1455 /* This function determines the order in which any attributes are
1456 written. It must be defined for input in the range
1457 LEAST_KNOWN_OBJ_ATTRIBUTE..NUM_KNOWN_OBJ_ATTRIBUTES-1 (this range
1458 is used in order to make unity easy). The returned value is the
1459 actual tag number to place in the input position. */
5aa6ff7c
AS
1460 int (*obj_attrs_order) (int);
1461
e8b36cd1
JM
1462 /* Handle merging unknown attributes; either warn and return TRUE,
1463 or give an error and return FALSE. */
1464 bfd_boolean (*obj_attrs_handle_unknown) (bfd *, int);
1465
46bed679
L
1466 /* Parse GNU properties. Return the property kind. If the property
1467 is corrupt, issue an error message and return property_corrupt. */
1468 enum elf_property_kind (*parse_gnu_properties) (bfd *, unsigned int,
1469 bfd_byte *,
1470 unsigned int);
1471
1472 /* Merge GNU properties. Return TRUE if property is updated. */
5c3ce2bc
L
1473 bfd_boolean (*merge_gnu_properties) (struct bfd_link_info *, bfd *,
1474 elf_property *, elf_property *);
46bed679
L
1475
1476 /* Set up GNU properties. */
fba37edd 1477 bfd *(*setup_gnu_properties) (struct bfd_link_info *);
46bed679 1478
2f0c68f2
CM
1479 /* Encoding used for compact EH tables. */
1480 int (*compact_eh_encoding) (struct bfd_link_info *);
1481
1482 /* Opcode representing no unwind. */
1483 int (*cant_unwind_opcode) (struct bfd_link_info *);
1484
7dc98aea
RO
1485 /* This is non-zero if static TLS segments require a special alignment. */
1486 unsigned static_tls_alignment;
1487
9eaff861 1488 /* Alignment for the PT_GNU_STACK segment. */
04c3a755
NS
1489 unsigned stack_align;
1490
84865015
NC
1491 /* Flag bits to assign to a section of type SHT_STRTAB. */
1492 unsigned long elf_strtab_flags;
1493
b34976b6
AM
1494 /* This is TRUE if the linker should act like collect and gather
1495 global constructors and destructors by name. This is TRUE for
86dc0f79
RH
1496 MIPS ELF because the Irix 5 tools can not handle the .init
1497 section. */
1498 unsigned collect : 1;
1499
b34976b6
AM
1500 /* This is TRUE if the linker should ignore changes to the type of a
1501 symbol. This is TRUE for MIPS ELF because some Irix 5 objects
86dc0f79
RH
1502 record undefined functions as STT_OBJECT although the definitions
1503 are STT_FUNC. */
1504 unsigned type_change_ok : 1;
1505
bf572ba0
MM
1506 /* Whether the backend may use REL relocations. (Some backends use
1507 both REL and RELA relocations, and this flag is set for those
1508 backends.) */
1509 unsigned may_use_rel_p : 1;
60bcf0fa 1510
bf572ba0
MM
1511 /* Whether the backend may use RELA relocations. (Some backends use
1512 both REL and RELA relocations, and this flag is set for those
1513 backends.) */
1514 unsigned may_use_rela_p : 1;
1515
1516 /* Whether the default relocation type is RELA. If a backend with
1517 this flag set wants REL relocations for a particular section,
1518 it must note that explicitly. Similarly, if this flag is clear,
60bcf0fa
NC
1519 and the backend wants RELA relocations for a particular
1520 section. */
bf572ba0
MM
1521 unsigned default_use_rela_p : 1;
1522
d35fd659
RS
1523 /* True if PLT and copy relocations should be RELA by default. */
1524 unsigned rela_plts_and_copies_p : 1;
1525
b491616a
AM
1526 /* Set if RELA relocations for a relocatable link can be handled by
1527 generic code. Backends that set this flag need do nothing in the
1528 backend relocate_section routine for relocatable linking. */
1529 unsigned rela_normal : 1;
1530
64f52338
AM
1531 /* Set if DT_REL/DT_RELA/DT_RELSZ/DT_RELASZ should not include PLT
1532 relocations. */
1533 unsigned dtrel_excludes_plt : 1;
1534
b34976b6 1535 /* TRUE if addresses "naturally" sign extend. This is used when
86dc0f79
RH
1536 swapping in from Elf32 when BFD64. */
1537 unsigned sign_extend_vma : 1;
1538
252b5132
RH
1539 unsigned want_got_plt : 1;
1540 unsigned plt_readonly : 1;
1541 unsigned want_plt_sym : 1;
1542 unsigned plt_not_loaded : 1;
1543 unsigned plt_alignment : 4;
1544 unsigned can_gc_sections : 1;
51b64d56 1545 unsigned can_refcount : 1;
2517a57f 1546 unsigned want_got_sym : 1;
3018b441 1547 unsigned want_dynbss : 1;
5474d94f 1548 unsigned want_dynrelro : 1;
6bfdb61b
AM
1549
1550 /* Targets which do not support physical addressing often require
1551 that the p_paddr field in the section header to be set to zero.
1552 This field indicates whether this behavior is required. */
5e8d7549 1553 unsigned want_p_paddr_set_to_zero : 1;
6bfdb61b 1554
a8c75b76
AM
1555 /* Target has broken hardware and/or kernel that requires pages not
1556 to be mapped twice with different permissions. */
1557 unsigned no_page_alias : 1;
1558
6bfdb61b
AM
1559 /* True if an object file lacking a .note.GNU-stack section
1560 should be assumed to be requesting exec stack. At least one
1561 other file in the link needs to have a .note.GNU-stack section
1562 for a PT_GNU_STACK segment to be created. */
1563 unsigned default_execstack : 1;
53291d1f
AM
1564
1565 /* True if elf_section_data(sec)->this_hdr.contents is sec->rawsize
1566 in length rather than sec->size in length, if sec->rawsize is
1567 non-zero and smaller than sec->size. */
1568 unsigned caches_rawsize : 1;
f7483970
L
1569
1570 /* Address of protected data defined in the shared library may be
1571 external, i.e., due to copy relocation. */
1572 unsigned extern_protected_data : 1;
23ec1e32
MR
1573
1574 /* True if `_bfd_elf_link_renumber_dynsyms' must be called even for
1575 static binaries. */
1576 unsigned always_renumber_dynsyms : 1;
a2f63b2e
MR
1577
1578 /* True if the 32-bit Linux PRPSINFO structure's `pr_uid' and `pr_gid'
1579 members use a 16-bit data type. */
1580 unsigned linux_prpsinfo32_ugid16 : 1;
3c9a7b0d
MR
1581
1582 /* True if the 64-bit Linux PRPSINFO structure's `pr_uid' and `pr_gid'
1583 members use a 16-bit data type. */
1584 unsigned linux_prpsinfo64_ugid16 : 1;
252b5132
RH
1585};
1586
d4730f92
BS
1587/* Information about reloc sections associated with a bfd_elf_section_data
1588 structure. */
1589struct bfd_elf_section_reloc_data
1590{
1591 /* The ELF header for the reloc section associated with this
1592 section, if any. */
1593 Elf_Internal_Shdr *hdr;
1594 /* The number of relocations currently assigned to HDR. */
1595 unsigned int count;
1596 /* The ELF section number of the reloc section. Only used for an
1597 output file. */
1598 int idx;
1599 /* Used by the backend linker to store the symbol hash table entries
1600 associated with relocs against global symbols. */
1601 struct elf_link_hash_entry **hashes;
1602};
1603
252b5132
RH
1604/* Information stored for each BFD section in an ELF file. This
1605 structure is allocated by elf_new_section_hook. */
1606
1607struct bfd_elf_section_data
1608{
1609 /* The ELF header for this section. */
1610 Elf_Internal_Shdr this_hdr;
0c715baa 1611
b9c361e0
JL
1612 /* INPUT_SECTION_FLAGS if specified in the linker script. */
1613 struct flag_info *section_flag_info;
1614
d4730f92
BS
1615 /* Information about the REL and RELA reloc sections associated
1616 with this section, if any. */
1617 struct bfd_elf_section_reloc_data rel, rela;
0c715baa 1618
6dc132d9 1619 /* The ELF section number of this section. */
252b5132 1620 int this_idx;
0c715baa 1621
f0abc2a1
AM
1622 /* Used by the backend linker when generating a shared library to
1623 record the dynamic symbol index for a section symbol
1624 corresponding to this section. A value of 0 means that there is
1625 no dynamic symbol for this section. */
1626 int dynindx;
1627
38ce5b11
L
1628 /* A pointer to the linked-to section for SHF_LINK_ORDER. */
1629 asection *linked_to;
1630
252b5132
RH
1631 /* A pointer to the swapped relocs. If the section uses REL relocs,
1632 rather than RELA, all the r_addend fields will be zero. This
1633 pointer may be NULL. It is used by the backend linker. */
1634 Elf_Internal_Rela *relocs;
0c715baa 1635
f0abc2a1
AM
1636 /* A pointer to a linked list tracking dynamic relocs copied for
1637 local symbols. */
c39a58e6 1638 void *local_dynrel;
0c715baa 1639
f0abc2a1
AM
1640 /* A pointer to the bfd section used for dynamic relocs. */
1641 asection *sreloc;
0c715baa 1642
1126897b
AM
1643 union {
1644 /* Group name, if this section is a member of a group. */
1645 const char *name;
1646
1647 /* Group signature sym, if this is the SHT_GROUP section. */
fc0a2244 1648 struct bfd_symbol *id;
1126897b 1649 } group;
dbb410c3 1650
b0956e01
AM
1651 /* For a member of a group, points to the SHT_GROUP section.
1652 NULL for the SHT_GROUP section itself and non-group sections. */
3d7f7666
L
1653 asection *sec_group;
1654
b0956e01
AM
1655 /* A linked list of member sections in the group. Circular when used by
1656 the linker. For the SHT_GROUP section, points at first member. */
dbb410c3
AM
1657 asection *next_in_group;
1658
9d0a14d3
RS
1659 /* The FDEs associated with this section. The u.fde.next_in_section
1660 field acts as a chain pointer. */
1661 struct eh_cie_fde *fde_list;
1662
2f0c68f2
CM
1663 /* Link from a text section to its .eh_frame_entry section. */
1664 asection *eh_frame_entry;
1665
f0abc2a1 1666 /* A pointer used for various section optimizations. */
c39a58e6 1667 void *sec_info;
252b5132
RH
1668};
1669
9f296da3 1670#define elf_section_data(sec) ((struct bfd_elf_section_data*)(sec)->used_by_bfd)
38ce5b11 1671#define elf_linked_to_section(sec) (elf_section_data(sec)->linked_to)
9f296da3
AM
1672#define elf_section_type(sec) (elf_section_data(sec)->this_hdr.sh_type)
1673#define elf_section_flags(sec) (elf_section_data(sec)->this_hdr.sh_flags)
1674#define elf_group_name(sec) (elf_section_data(sec)->group.name)
1675#define elf_group_id(sec) (elf_section_data(sec)->group.id)
1676#define elf_next_in_group(sec) (elf_section_data(sec)->next_in_group)
1677#define elf_fde_list(sec) (elf_section_data(sec)->fde_list)
3d7f7666 1678#define elf_sec_group(sec) (elf_section_data(sec)->sec_group)
2f0c68f2 1679#define elf_section_eh_frame_entry(sec) (elf_section_data(sec)->eh_frame_entry)
252b5132 1680
24718e3b 1681#define xvec_get_elf_backend_data(xvec) \
f7231afc 1682 ((const struct elf_backend_data *) (xvec)->backend_data)
24718e3b 1683
252b5132 1684#define get_elf_backend_data(abfd) \
24718e3b 1685 xvec_get_elf_backend_data ((abfd)->xvec)
252b5132 1686
3de4a297
JM
1687/* The least object attributes (within an attributes subsection) known
1688 for any target. Some code assumes that the value 0 is not used and
1689 the field for that attribute can instead be used as a marker to
1690 indicate that attributes have been initialized. */
59e6276b 1691#define LEAST_KNOWN_OBJ_ATTRIBUTE 2
3de4a297 1692
104d59d1 1693/* The maximum number of known object attributes for any target. */
91e22acd 1694#define NUM_KNOWN_OBJ_ATTRIBUTES 71
104d59d1 1695
3483fe2e
AS
1696/* The value of an object attribute. The type indicates whether the attribute
1697 holds and integer, a string, or both. It can also indicate that there can
1698 be no default (i.e. all values must be written to file, even zero). */
104d59d1
JM
1699
1700typedef struct obj_attribute
1701{
3483fe2e
AS
1702#define ATTR_TYPE_FLAG_INT_VAL (1 << 0)
1703#define ATTR_TYPE_FLAG_STR_VAL (1 << 1)
1704#define ATTR_TYPE_FLAG_NO_DEFAULT (1 << 2)
1705
1706#define ATTR_TYPE_HAS_INT_VAL(TYPE) ((TYPE) & ATTR_TYPE_FLAG_INT_VAL)
1707#define ATTR_TYPE_HAS_STR_VAL(TYPE) ((TYPE) & ATTR_TYPE_FLAG_STR_VAL)
1708#define ATTR_TYPE_HAS_NO_DEFAULT(TYPE) ((TYPE) & ATTR_TYPE_FLAG_NO_DEFAULT)
1709
104d59d1
JM
1710 int type;
1711 unsigned int i;
1712 char *s;
1713} obj_attribute;
1714
1715typedef struct obj_attribute_list
1716{
1717 struct obj_attribute_list *next;
5ee4a1ca 1718 unsigned int tag;
104d59d1
JM
1719 obj_attribute attr;
1720} obj_attribute_list;
1721
1722/* Object attributes may either be defined by the processor ABI, index
1723 OBJ_ATTR_PROC in the *_obj_attributes arrays, or be GNU-specific
1724 (and possibly also processor-specific), index OBJ_ATTR_GNU. */
1725#define OBJ_ATTR_PROC 0
1726#define OBJ_ATTR_GNU 1
1727#define OBJ_ATTR_FIRST OBJ_ATTR_PROC
1728#define OBJ_ATTR_LAST OBJ_ATTR_GNU
1729
1730/* The following object attribute tags are taken as generic, for all
1731 targets and for "gnu" where there is no target standard. */
1732enum
1733{
1734 Tag_NULL = 0,
1735 Tag_File = 1,
1736 Tag_Section = 2,
1737 Tag_Symbol = 3,
1738 Tag_compatibility = 32
1739};
1740
e21e5835
NC
1741/* The following struct stores information about every SystemTap section
1742 found in the object file. */
1743struct sdt_note
1744{
1745 struct sdt_note *next;
1746 bfd_size_type size;
1747 bfd_byte data[1];
1748};
1749
228e534f
AM
1750/* tdata information grabbed from an elf core file. */
1751struct core_elf_obj_tdata
1752{
1753 int signal;
1754 int pid;
1755 int lwpid;
1756 char* program;
1757 char* command;
1758};
1759
c0355132
AM
1760/* Extra tdata information held for output ELF BFDs. */
1761struct output_elf_obj_tdata
1762{
1763 struct elf_segment_map *seg_map;
1764 struct elf_strtab_hash *strtab_ptr;
1765
1766 /* STT_SECTION symbols for each section */
1767 asymbol **section_syms;
1768
1769 /* Used to determine if PT_GNU_EH_FRAME segment header should be
1770 created. */
1771 asection *eh_frame_hdr;
1772
1773 /* NT_GNU_BUILD_ID note type info. */
1774 struct
1775 {
1776 bfd_boolean (*after_write_object_contents) (bfd *);
1777 const char *style;
1778 asection *sec;
1779 } build_id;
1780
1781 /* Records the result of `get_program_header_size'. */
1782 bfd_size_type program_header_size;
1783
1784 /* Used when laying out sections. */
1785 file_ptr next_file_pos;
1786
1787 int num_section_syms;
1788 unsigned int shstrtab_section, strtab_section;
1789
1790 /* Segment flags for the PT_GNU_STACK segment. */
1791 unsigned int stack_flags;
1792
1793 /* This is set to TRUE if the object was created by the backend
1794 linker. */
1795 bfd_boolean linker;
1796
1797 /* Used to determine if the e_flags field has been initialized */
1798 bfd_boolean flags_init;
1799};
1800
13a2df29
L
1801/* Indicate if the bfd contains symbols that have the STT_GNU_IFUNC
1802 symbol type or STB_GNU_UNIQUE binding. Used to set the osabi
1803 field in the ELF header structure. */
1804enum elf_gnu_symbols
9eaff861
AO
1805{
1806 elf_gnu_symbol_none = 0,
1807 elf_gnu_symbol_any = 1 << 0,
1808 elf_gnu_symbol_ifunc = (elf_gnu_symbol_any | 1 << 1),
1809 elf_gnu_symbol_unique = (elf_gnu_symbol_any | 1 << 2),
1810 elf_gnu_symbol_all = (elf_gnu_symbol_ifunc | elf_gnu_symbol_unique)
1811};
13a2df29 1812
6a40cf0c
NC
1813typedef struct elf_section_list
1814{
07d6d2b8
AM
1815 Elf_Internal_Shdr hdr;
1816 unsigned int ndx;
6a40cf0c
NC
1817 struct elf_section_list * next;
1818} elf_section_list;
9eaff861 1819
252b5132
RH
1820/* Some private data is stashed away for future use using the tdata pointer
1821 in the bfd structure. */
1822
1823struct elf_obj_tdata
1824{
1825 Elf_Internal_Ehdr elf_header[1]; /* Actual data, but ref like ptr */
1826 Elf_Internal_Shdr **elf_sect_ptr;
1827 Elf_Internal_Phdr *phdr;
252b5132
RH
1828 Elf_Internal_Shdr symtab_hdr;
1829 Elf_Internal_Shdr shstrtab_hdr;
1830 Elf_Internal_Shdr strtab_hdr;
1831 Elf_Internal_Shdr dynsymtab_hdr;
1832 Elf_Internal_Shdr dynstrtab_hdr;
1833 Elf_Internal_Shdr dynversym_hdr;
1834 Elf_Internal_Shdr dynverref_hdr;
1835 Elf_Internal_Shdr dynverdef_hdr;
6a40cf0c 1836 elf_section_list * symtab_shndx_list;
dbb410c3
AM
1837 bfd_vma gp; /* The gp value */
1838 unsigned int gp_size; /* The gp size */
c0355132 1839 unsigned int num_elf_sections; /* elf_sect_ptr size */
dbb410c3 1840
252b5132
RH
1841 /* A mapping from external symbols to entries in the linker hash
1842 table, used when linking. This is indexed by the symbol index
1843 minus the sh_info field of the symbol table header. */
1844 struct elf_link_hash_entry **sym_hashes;
1845
5cab59f6
AM
1846 /* Track usage and final offsets of GOT entries for local symbols.
1847 This array is indexed by symbol index. Elements are used
1848 identically to "got" in struct elf_link_hash_entry. */
252b5132
RH
1849 union
1850 {
1851 bfd_signed_vma *refcounts;
1852 bfd_vma *offsets;
5cab59f6 1853 struct got_entry **ents;
252b5132
RH
1854 } local_got;
1855
252b5132
RH
1856 /* The linker ELF emulation code needs to let the backend ELF linker
1857 know what filename should be used for a dynamic object if the
1858 dynamic object is found using a search. The emulation code then
1859 sometimes needs to know what name was actually used. Until the
1860 file has been added to the linker symbol table, this field holds
1861 the name the linker wants. After it has been added, it holds the
1862 name actually used, which will be the DT_SONAME entry if there is
1863 one. */
1864 const char *dt_name;
1865
7ee314fa 1866 /* The linker emulation needs to know what audit libs
23209a78 1867 are used by a dynamic object. */
7ee314fa
AM
1868 const char *dt_audit;
1869
252b5132 1870 /* Used by find_nearest_line entry point. */
c39a58e6 1871 void *line_info;
252b5132 1872
3e932841 1873 /* A place to stash dwarf1 info for this bfd. */
252b5132
RH
1874 struct dwarf1_debug *dwarf1_find_line_info;
1875
3e932841 1876 /* A place to stash dwarf2 info for this bfd. */
c39a58e6 1877 void *dwarf2_find_line_info;
252b5132 1878
619a703e
AM
1879 /* Stash away info for yet another find line/function variant. */
1880 void *elf_find_function_cache;
1881
252b5132
RH
1882 /* Number of symbol version definitions we are about to emit. */
1883 unsigned int cverdefs;
1884
1885 /* Number of symbol version references we are about to emit. */
1886 unsigned int cverrefs;
1887
1888 /* Symbol version definitions in external objects. */
1889 Elf_Internal_Verdef *verdef;
1890
1891 /* Symbol version references to external objects. */
1892 Elf_Internal_Verneed *verref;
1893
9d0a14d3
RS
1894 /* A pointer to the .eh_frame section. */
1895 asection *eh_frame_section;
1896
c0f00686 1897 /* Symbol buffer. */
c15f73f9 1898 void *symbuf;
104d59d1 1899
46bed679
L
1900 /* List of GNU properties. Will be updated by setup_gnu_properties
1901 after all input GNU properties are merged for output. */
1902 elf_property_list *properties;
1903
104d59d1
JM
1904 obj_attribute known_obj_attributes[2][NUM_KNOWN_OBJ_ATTRIBUTES];
1905 obj_attribute_list *other_obj_attributes[2];
20a761b5 1906
e21e5835
NC
1907 /* Linked-list containing information about every Systemtap section
1908 found in the object file. Each section corresponds to one entry
1909 in the list. */
1910 struct sdt_note *sdt_note_head;
1911
c0355132
AM
1912 Elf_Internal_Shdr **group_sect_ptr;
1913 int num_group;
1914
564e11c9
JW
1915 /* Index into group_sect_ptr, updated by setup_group when finding a
1916 section's group. Used to optimize subsequent group searches. */
1917 unsigned int group_search_offset;
1918
6a40cf0c 1919 unsigned int symtab_section, dynsymtab_section;
c0355132 1920 unsigned int dynversym_section, dynverdef_section, dynverref_section;
d8045f23 1921
0ffa91dd
NC
1922 /* An identifier used to distinguish different target
1923 specific extensions to this structure. */
a5b4ee94 1924 ENUM_BITFIELD (elf_target_id) object_id : 6;
228e534f 1925
c0355132
AM
1926 /* Whether a dyanmic object was specified normally on the linker
1927 command line, or was specified when --as-needed was in effect,
1928 or was found via a DT_NEEDED entry. */
a5b4ee94
L
1929 ENUM_BITFIELD (dynamic_lib_link_class) dyn_lib_class : 4;
1930
1931 /* Whether if the bfd contains symbols that have the STT_GNU_IFUNC
1932 symbol type or STB_GNU_UNIQUE binding. */
1933 ENUM_BITFIELD (elf_gnu_symbols) has_gnu_symbols : 3;
1934
1935 /* Whether if the bfd contains the GNU_PROPERTY_NO_COPY_ON_PROTECTED
1936 property. */
1937 unsigned int has_no_copy_on_protected : 1;
c0355132
AM
1938
1939 /* Irix 5 often screws up the symbol table, sorting local symbols
1940 after global symbols. This flag is set if the symbol table in
1941 this BFD appears to be screwed up. If it is, we ignore the
1942 sh_info field in the symbol table header, and always read all the
1943 symbols. */
a5b4ee94 1944 unsigned int bad_symtab : 1;
c0355132 1945
228e534f
AM
1946 /* Information grabbed from an elf core file. */
1947 struct core_elf_obj_tdata *core;
c0355132
AM
1948
1949 /* More information held for output ELF BFDs. */
1950 struct output_elf_obj_tdata *o;
252b5132
RH
1951};
1952
1953#define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data)
0ffa91dd
NC
1954
1955#define elf_object_id(bfd) (elf_tdata(bfd) -> object_id)
c0355132 1956#define elf_program_header_size(bfd) (elf_tdata(bfd) -> o->program_header_size)
252b5132
RH
1957#define elf_elfheader(bfd) (elf_tdata(bfd) -> elf_header)
1958#define elf_elfsections(bfd) (elf_tdata(bfd) -> elf_sect_ptr)
9ad5cbcf 1959#define elf_numsections(bfd) (elf_tdata(bfd) -> num_elf_sections)
c0355132
AM
1960#define elf_seg_map(bfd) (elf_tdata(bfd) -> o->seg_map)
1961#define elf_next_file_pos(bfd) (elf_tdata(bfd) -> o->next_file_pos)
1962#define elf_eh_frame_hdr(bfd) (elf_tdata(bfd) -> o->eh_frame_hdr)
1963#define elf_linker(bfd) (elf_tdata(bfd) -> o->linker)
1964#define elf_stack_flags(bfd) (elf_tdata(bfd) -> o->stack_flags)
1965#define elf_shstrtab(bfd) (elf_tdata(bfd) -> o->strtab_ptr)
252b5132 1966#define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section)
6a40cf0c 1967#define elf_symtab_shndx_list(bfd) (elf_tdata(bfd) -> symtab_shndx_list)
c0355132
AM
1968#define elf_strtab_sec(bfd) (elf_tdata(bfd) -> o->strtab_section)
1969#define elf_shstrtab_sec(bfd) (elf_tdata(bfd) -> o->shstrtab_section)
0ffa91dd 1970#define elf_symtab_hdr(bfd) (elf_tdata(bfd) -> symtab_hdr)
252b5132
RH
1971#define elf_dynsymtab(bfd) (elf_tdata(bfd) -> dynsymtab_section)
1972#define elf_dynversym(bfd) (elf_tdata(bfd) -> dynversym_section)
1973#define elf_dynverdef(bfd) (elf_tdata(bfd) -> dynverdef_section)
1974#define elf_dynverref(bfd) (elf_tdata(bfd) -> dynverref_section)
9d0a14d3
RS
1975#define elf_eh_frame_section(bfd) \
1976 (elf_tdata(bfd) -> eh_frame_section)
c0355132
AM
1977#define elf_section_syms(bfd) (elf_tdata(bfd) -> o->section_syms)
1978#define elf_num_section_syms(bfd) (elf_tdata(bfd) -> o->num_section_syms)
252b5132
RH
1979#define core_prpsinfo(bfd) (elf_tdata(bfd) -> prpsinfo)
1980#define core_prstatus(bfd) (elf_tdata(bfd) -> prstatus)
1981#define elf_gp(bfd) (elf_tdata(bfd) -> gp)
1982#define elf_gp_size(bfd) (elf_tdata(bfd) -> gp_size)
1983#define elf_sym_hashes(bfd) (elf_tdata(bfd) -> sym_hashes)
1984#define elf_local_got_refcounts(bfd) (elf_tdata(bfd) -> local_got.refcounts)
1985#define elf_local_got_offsets(bfd) (elf_tdata(bfd) -> local_got.offsets)
5cab59f6 1986#define elf_local_got_ents(bfd) (elf_tdata(bfd) -> local_got.ents)
252b5132 1987#define elf_dt_name(bfd) (elf_tdata(bfd) -> dt_name)
7ee314fa 1988#define elf_dt_audit(bfd) (elf_tdata(bfd) -> dt_audit)
4a43e768 1989#define elf_dyn_lib_class(bfd) (elf_tdata(bfd) -> dyn_lib_class)
252b5132 1990#define elf_bad_symtab(bfd) (elf_tdata(bfd) -> bad_symtab)
c0355132 1991#define elf_flags_init(bfd) (elf_tdata(bfd) -> o->flags_init)
104d59d1
JM
1992#define elf_known_obj_attributes(bfd) (elf_tdata (bfd) -> known_obj_attributes)
1993#define elf_other_obj_attributes(bfd) (elf_tdata (bfd) -> other_obj_attributes)
1994#define elf_known_obj_attributes_proc(bfd) \
1995 (elf_known_obj_attributes (bfd) [OBJ_ATTR_PROC])
1996#define elf_other_obj_attributes_proc(bfd) \
1997 (elf_other_obj_attributes (bfd) [OBJ_ATTR_PROC])
46bed679 1998#define elf_properties(bfd) (elf_tdata (bfd) -> properties)
a5b4ee94
L
1999#define elf_has_no_copy_on_protected(bfd) \
2000 (elf_tdata(bfd) -> has_no_copy_on_protected)
252b5132
RH
2001\f
2002extern void _bfd_elf_swap_verdef_in
c39a58e6 2003 (bfd *, const Elf_External_Verdef *, Elf_Internal_Verdef *);
252b5132 2004extern void _bfd_elf_swap_verdef_out
c39a58e6 2005 (bfd *, const Elf_Internal_Verdef *, Elf_External_Verdef *);
252b5132 2006extern void _bfd_elf_swap_verdaux_in
c39a58e6 2007 (bfd *, const Elf_External_Verdaux *, Elf_Internal_Verdaux *);
252b5132 2008extern void _bfd_elf_swap_verdaux_out
c39a58e6 2009 (bfd *, const Elf_Internal_Verdaux *, Elf_External_Verdaux *);
252b5132 2010extern void _bfd_elf_swap_verneed_in
c39a58e6 2011 (bfd *, const Elf_External_Verneed *, Elf_Internal_Verneed *);
252b5132 2012extern void _bfd_elf_swap_verneed_out
c39a58e6 2013 (bfd *, const Elf_Internal_Verneed *, Elf_External_Verneed *);
252b5132 2014extern void _bfd_elf_swap_vernaux_in
c39a58e6 2015 (bfd *, const Elf_External_Vernaux *, Elf_Internal_Vernaux *);
252b5132 2016extern void _bfd_elf_swap_vernaux_out
c39a58e6 2017 (bfd *, const Elf_Internal_Vernaux *, Elf_External_Vernaux *);
252b5132 2018extern void _bfd_elf_swap_versym_in
c39a58e6 2019 (bfd *, const Elf_External_Versym *, Elf_Internal_Versym *);
252b5132 2020extern void _bfd_elf_swap_versym_out
c39a58e6 2021 (bfd *, const Elf_Internal_Versym *, Elf_External_Versym *);
252b5132 2022
cb33740c 2023extern unsigned int _bfd_elf_section_from_bfd_section
c39a58e6 2024 (bfd *, asection *);
252b5132 2025extern char *bfd_elf_string_from_elf_section
c39a58e6 2026 (bfd *, unsigned, unsigned);
6cdc0ccc 2027extern Elf_Internal_Sym *bfd_elf_get_elf_syms
c39a58e6
AM
2028 (bfd *, Elf_Internal_Shdr *, size_t, size_t, Elf_Internal_Sym *, void *,
2029 Elf_External_Sym_Shndx *);
0e2cfdce 2030extern const char *bfd_elf_sym_name
26c61ae5 2031 (bfd *, Elf_Internal_Shdr *, Elf_Internal_Sym *, asection *);
252b5132 2032
b34976b6 2033extern bfd_boolean _bfd_elf_copy_private_bfd_data
c39a58e6 2034 (bfd *, bfd *);
b34976b6 2035extern bfd_boolean _bfd_elf_print_private_bfd_data
c39a58e6 2036 (bfd *, void *);
60bb06bc 2037const char * _bfd_elf_get_symbol_version_string
bb4d2ac2 2038 (bfd *, asymbol *, bfd_boolean *);
dc810e39 2039extern void bfd_elf_print_symbol
c39a58e6 2040 (bfd *, void *, asymbol *, bfd_print_symbol_type);
dc810e39 2041
8c946ed5 2042extern unsigned int _bfd_elf_eh_frame_address_size
76c20d54 2043 (bfd *, const asection *);
ec3391e7
AO
2044extern bfd_byte _bfd_elf_encode_eh_address
2045 (bfd *abfd, struct bfd_link_info *info, asection *osec, bfd_vma offset,
2046 asection *loc_sec, bfd_vma loc_offset, bfd_vma *encoded);
2047extern bfd_boolean _bfd_elf_can_make_relative
2048 (bfd *input_bfd, struct bfd_link_info *info, asection *eh_frame_section);
2049
dc810e39 2050extern enum elf_reloc_type_class _bfd_elf_reloc_type_class
7e612e98
AM
2051 (const struct bfd_link_info *, const asection *,
2052 const Elf_Internal_Rela *);
f8df10f4 2053extern bfd_vma _bfd_elf_rela_local_sym
8517fae7 2054 (bfd *, Elf_Internal_Sym *, asection **, Elf_Internal_Rela *);
c629eae0 2055extern bfd_vma _bfd_elf_rel_local_sym
c39a58e6 2056 (bfd *, Elf_Internal_Sym *, asection **, bfd_vma);
c629eae0 2057extern bfd_vma _bfd_elf_section_offset
c39a58e6 2058 (bfd *, struct bfd_link_info *, asection *, bfd_vma);
db6751f2 2059
dc810e39 2060extern unsigned long bfd_elf_hash
c39a58e6 2061 (const char *);
fdc90cb4
JJ
2062extern unsigned long bfd_elf_gnu_hash
2063 (const char *);
252b5132 2064
dc810e39 2065extern bfd_reloc_status_type bfd_elf_generic_reloc
c39a58e6 2066 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
0ffa91dd 2067extern bfd_boolean bfd_elf_allocate_object
4dfe6ac6 2068 (bfd *, size_t, enum elf_target_id);
ae95ffa6 2069extern bfd_boolean bfd_elf_make_object
c39a58e6 2070 (bfd *);
b34976b6 2071extern bfd_boolean bfd_elf_mkcorefile
c39a58e6 2072 (bfd *);
b34976b6 2073extern bfd_boolean _bfd_elf_make_section_from_shdr
6dc132d9 2074 (bfd *, Elf_Internal_Shdr *, const char *, int);
b34976b6 2075extern bfd_boolean _bfd_elf_make_section_from_phdr
c39a58e6 2076 (bfd *, Elf_Internal_Phdr *, int, const char *);
252b5132 2077extern struct bfd_hash_entry *_bfd_elf_link_hash_newfunc
c39a58e6 2078 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
252b5132 2079extern struct bfd_link_hash_table *_bfd_elf_link_hash_table_create
c39a58e6 2080 (bfd *);
9f7c3e5e 2081extern void _bfd_elf_link_hash_table_free
d495ab0d 2082 (bfd *);
c61b8717 2083extern void _bfd_elf_link_hash_copy_indirect
fcfa13d2 2084 (struct bfd_link_info *, struct elf_link_hash_entry *,
c39a58e6 2085 struct elf_link_hash_entry *);
c61b8717 2086extern void _bfd_elf_link_hash_hide_symbol
c39a58e6 2087 (struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean);
508c3946
L
2088extern bfd_boolean _bfd_elf_link_hash_fixup_symbol
2089 (struct bfd_link_info *, struct elf_link_hash_entry *);
b34976b6 2090extern bfd_boolean _bfd_elf_link_hash_table_init
c39a58e6
AM
2091 (struct elf_link_hash_table *, bfd *,
2092 struct bfd_hash_entry *(*)
66eb6687 2093 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *),
4dfe6ac6 2094 unsigned int, enum elf_target_id);
b34976b6 2095extern bfd_boolean _bfd_elf_slurp_version_tables
fc0e6df6 2096 (bfd *, bfd_boolean);
b34976b6 2097extern bfd_boolean _bfd_elf_merge_sections
c39a58e6 2098 (bfd *, struct bfd_link_info *);
ecca9871
L
2099extern bfd_boolean _bfd_elf_match_sections_by_type
2100 (bfd *, const asection *, bfd *, const asection *);
72adc230
AM
2101extern bfd_boolean bfd_elf_is_group_section
2102 (bfd *, const struct bfd_section *);
43e1669b 2103extern bfd_boolean _bfd_elf_section_already_linked
c77ec726 2104 (bfd *, asection *, struct bfd_link_info *);
1126897b 2105extern void bfd_elf_set_group_contents
c39a58e6 2106 (bfd *, asection *, void *);
76359541
TP
2107extern unsigned int _bfd_elf_filter_global_symbols
2108 (bfd *, struct bfd_link_info *, asymbol **, long);
01b3c8ab 2109extern asection *_bfd_elf_check_kept_section
c0f00686 2110 (asection *, struct bfd_link_info *);
dbaa2011 2111#define _bfd_elf_link_just_syms _bfd_generic_link_just_syms
1338dd10
PB
2112extern void _bfd_elf_copy_link_hash_symbol_type
2113 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
d0bf826b
AM
2114extern bfd_boolean _bfd_elf_size_group_sections
2115 (struct bfd_link_info *);
2116extern bfd_boolean _bfd_elf_fixup_group_sections
2117(bfd *, asection *);
80fccad2
BW
2118extern bfd_boolean _bfd_elf_copy_private_header_data
2119 (bfd *, bfd *);
b34976b6 2120extern bfd_boolean _bfd_elf_copy_private_symbol_data
c39a58e6 2121 (bfd *, asymbol *, bfd *, asymbol *);
ccd2ec6a
L
2122#define _bfd_generic_init_private_section_data \
2123 _bfd_elf_init_private_section_data
2124extern bfd_boolean _bfd_elf_init_private_section_data
2125 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *);
b34976b6 2126extern bfd_boolean _bfd_elf_copy_private_section_data
c39a58e6 2127 (bfd *, asection *, bfd *, asection *);
b34976b6 2128extern bfd_boolean _bfd_elf_write_object_contents
c39a58e6 2129 (bfd *);
b34976b6 2130extern bfd_boolean _bfd_elf_write_corefile_contents
c39a58e6 2131 (bfd *);
b34976b6 2132extern bfd_boolean _bfd_elf_set_section_contents
0f867abe 2133 (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type);
dc810e39 2134extern long _bfd_elf_get_symtab_upper_bound
c39a58e6 2135 (bfd *);
6cee3f79 2136extern long _bfd_elf_canonicalize_symtab
c39a58e6 2137 (bfd *, asymbol **);
dc810e39 2138extern long _bfd_elf_get_dynamic_symtab_upper_bound
c39a58e6 2139 (bfd *);
dc810e39 2140extern long _bfd_elf_canonicalize_dynamic_symtab
c39a58e6 2141 (bfd *, asymbol **);
4c45e5c9 2142extern long _bfd_elf_get_synthetic_symtab
c9727e01 2143 (bfd *, long, asymbol **, long, asymbol **, asymbol **);
dc810e39 2144extern long _bfd_elf_get_reloc_upper_bound
c39a58e6 2145 (bfd *, sec_ptr);
dc810e39 2146extern long _bfd_elf_canonicalize_reloc
c39a58e6 2147 (bfd *, sec_ptr, arelent **, asymbol **);
83bac4b0
NC
2148extern asection * _bfd_elf_get_dynamic_reloc_section
2149 (bfd *, asection *, bfd_boolean);
2150extern asection * _bfd_elf_make_dynamic_reloc_section
2151 (asection *, bfd *, unsigned int, bfd *, bfd_boolean);
dc810e39 2152extern long _bfd_elf_get_dynamic_reloc_upper_bound
c39a58e6 2153 (bfd *);
dc810e39 2154extern long _bfd_elf_canonicalize_dynamic_reloc
c39a58e6 2155 (bfd *, arelent **, asymbol **);
dc810e39 2156extern asymbol *_bfd_elf_make_empty_symbol
c39a58e6 2157 (bfd *);
dc810e39 2158extern void _bfd_elf_get_symbol_info
c39a58e6 2159 (bfd *, asymbol *, symbol_info *);
b34976b6 2160extern bfd_boolean _bfd_elf_is_local_label_name
c39a58e6 2161 (bfd *, const char *);
dc810e39 2162extern alent *_bfd_elf_get_lineno
c39a58e6 2163 (bfd *, asymbol *);
b34976b6 2164extern bfd_boolean _bfd_elf_set_arch_mach
c39a58e6 2165 (bfd *, enum bfd_architecture, unsigned long);
b34976b6 2166extern bfd_boolean _bfd_elf_find_nearest_line
fb167eb2
AM
2167 (bfd *, asymbol **, asection *, bfd_vma,
2168 const char **, const char **, unsigned int *, unsigned int *);
5420f73d
L
2169extern bfd_boolean _bfd_elf_find_line
2170 (bfd *, asymbol **, asymbol *, const char **, unsigned int *);
4ab527b0
FF
2171extern bfd_boolean _bfd_elf_find_inliner_info
2172 (bfd *, const char **, const char **, unsigned int *);
923b198a 2173extern asymbol *_bfd_elf_find_function
e00e8198 2174 (bfd *, asymbol **, asection *, bfd_vma, const char **, const char **);
252b5132
RH
2175#define _bfd_elf_read_minisymbols _bfd_generic_read_minisymbols
2176#define _bfd_elf_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
dc810e39 2177extern int _bfd_elf_sizeof_headers
a6b96beb 2178 (bfd *, struct bfd_link_info *);
b34976b6 2179extern bfd_boolean _bfd_elf_new_section_hook
c39a58e6 2180 (bfd *, asection *);
551b43fd
AM
2181extern const struct bfd_elf_special_section *_bfd_elf_get_special_section
2182 (const char *, const struct bfd_elf_special_section *, unsigned int);
7dcb9820 2183extern const struct bfd_elf_special_section *_bfd_elf_get_sec_type_attr
551b43fd 2184 (bfd *, asection *);
252b5132
RH
2185
2186/* If the target doesn't have reloc handling written yet: */
f3185997 2187extern bfd_boolean _bfd_elf_no_info_to_howto
c39a58e6 2188 (bfd *, arelent *, Elf_Internal_Rela *);
dc810e39 2189
b34976b6 2190extern bfd_boolean bfd_section_from_shdr
c39a58e6 2191 (bfd *, unsigned int shindex);
b34976b6 2192extern bfd_boolean bfd_section_from_phdr
c39a58e6 2193 (bfd *, Elf_Internal_Phdr *, int);
dc810e39
AM
2194
2195extern int _bfd_elf_symbol_from_bfd_symbol
c39a58e6 2196 (bfd *, asymbol **);
dc810e39 2197
23209a78 2198extern Elf_Internal_Sym *bfd_sym_from_r_symndx
87d72d41 2199 (struct sym_cache *, bfd *, unsigned long);
dc810e39 2200extern asection *bfd_section_from_elf_index
c39a58e6 2201 (bfd *, unsigned int);
2b0f7ef9
JJ
2202
2203extern struct elf_strtab_hash * _bfd_elf_strtab_init
c39a58e6 2204 (void);
2b0f7ef9 2205extern void _bfd_elf_strtab_free
c39a58e6 2206 (struct elf_strtab_hash *);
ef53be89 2207extern size_t _bfd_elf_strtab_add
c39a58e6 2208 (struct elf_strtab_hash *, const char *, bfd_boolean);
2b0f7ef9 2209extern void _bfd_elf_strtab_addref
ef53be89 2210 (struct elf_strtab_hash *, size_t);
2b0f7ef9 2211extern void _bfd_elf_strtab_delref
ef53be89 2212 (struct elf_strtab_hash *, size_t);
02be4619 2213extern unsigned int _bfd_elf_strtab_refcount
ef53be89 2214 (struct elf_strtab_hash *, size_t);
d45f8bda 2215extern void _bfd_elf_strtab_clear_all_refs
5b677558
AM
2216 (struct elf_strtab_hash *);
2217extern void *_bfd_elf_strtab_save
2218 (struct elf_strtab_hash *);
2219extern void _bfd_elf_strtab_restore
2220 (struct elf_strtab_hash *, void *);
2b0f7ef9 2221extern bfd_size_type _bfd_elf_strtab_size
c39a58e6 2222 (struct elf_strtab_hash *);
2b0f7ef9 2223extern bfd_size_type _bfd_elf_strtab_offset
ef53be89 2224 (struct elf_strtab_hash *, size_t);
b34976b6 2225extern bfd_boolean _bfd_elf_strtab_emit
c39a58e6 2226 (bfd *, struct elf_strtab_hash *);
2b0f7ef9 2227extern void _bfd_elf_strtab_finalize
c39a58e6 2228 (struct elf_strtab_hash *);
2b0f7ef9 2229
2f0c68f2
CM
2230extern bfd_boolean bfd_elf_parse_eh_frame_entries
2231 (bfd *, struct bfd_link_info *);
2232extern bfd_boolean _bfd_elf_parse_eh_frame_entry
2233 (struct bfd_link_info *, asection *, struct elf_reloc_cookie *);
ca92cecb
RS
2234extern void _bfd_elf_parse_eh_frame
2235 (bfd *, struct bfd_link_info *, asection *, struct elf_reloc_cookie *);
2f0c68f2
CM
2236extern bfd_boolean _bfd_elf_end_eh_frame_parsing
2237 (struct bfd_link_info *info);
2238
b34976b6 2239extern bfd_boolean _bfd_elf_discard_section_eh_frame
c39a58e6
AM
2240 (bfd *, struct bfd_link_info *, asection *,
2241 bfd_boolean (*) (bfd_vma, void *), struct elf_reloc_cookie *);
d7153c4a
AM
2242extern bfd_boolean _bfd_elf_adjust_eh_frame_global_symbol
2243 (struct elf_link_hash_entry *, void *);
b34976b6 2244extern bfd_boolean _bfd_elf_discard_section_eh_frame_hdr
c39a58e6 2245 (bfd *, struct bfd_link_info *);
65765700 2246extern bfd_vma _bfd_elf_eh_frame_section_offset
92e4ec35 2247 (bfd *, struct bfd_link_info *, asection *, bfd_vma);
b34976b6 2248extern bfd_boolean _bfd_elf_write_section_eh_frame
c39a58e6 2249 (bfd *, struct bfd_link_info *, asection *, bfd_byte *);
2f0c68f2
CM
2250bfd_boolean _bfd_elf_write_section_eh_frame_entry
2251 (bfd *, struct bfd_link_info *, asection *, bfd_byte *);
2252extern bfd_boolean _bfd_elf_fixup_eh_frame_hdr (struct bfd_link_info *);
b34976b6 2253extern bfd_boolean _bfd_elf_write_section_eh_frame_hdr
c39a58e6 2254 (bfd *, struct bfd_link_info *);
9a2a56cc
AM
2255extern bfd_boolean _bfd_elf_eh_frame_present
2256 (struct bfd_link_info *);
2f0c68f2
CM
2257extern bfd_boolean _bfd_elf_eh_frame_entry_present
2258 (struct bfd_link_info *);
b34976b6 2259extern bfd_boolean _bfd_elf_maybe_strip_eh_frame_hdr
c39a58e6 2260 (struct bfd_link_info *);
65765700 2261
fdc90cb4
JJ
2262extern bfd_boolean _bfd_elf_hash_symbol (struct elf_link_hash_entry *);
2263
dc810e39 2264extern long _bfd_elf_link_lookup_local_dynindx
c39a58e6 2265 (struct bfd_link_info *, bfd *, long);
b34976b6 2266extern bfd_boolean _bfd_elf_compute_section_file_positions
c39a58e6 2267 (bfd *, struct bfd_link_info *);
dc810e39 2268extern file_ptr _bfd_elf_assign_file_position_for_section
c39a58e6 2269 (Elf_Internal_Shdr *, file_ptr, bfd_boolean);
dc810e39 2270
b34976b6 2271extern bfd_boolean _bfd_elf_validate_reloc
c39a58e6 2272 (bfd *, arelent *);
dc810e39 2273
45d6a902 2274extern bfd_boolean _bfd_elf_link_create_dynamic_sections
c39a58e6 2275 (bfd *, struct bfd_link_info *);
d00dd7dc
AM
2276extern bfd_boolean _bfd_elf_omit_section_dynsym_default
2277 (bfd *, struct bfd_link_info *, asection *);
2278extern bfd_boolean _bfd_elf_omit_section_dynsym_all
aee6f5b4 2279 (bfd *, struct bfd_link_info *, asection *);
b34976b6 2280extern bfd_boolean _bfd_elf_create_dynamic_sections
c39a58e6 2281 (bfd *, struct bfd_link_info *);
b34976b6 2282extern bfd_boolean _bfd_elf_create_got_section
c39a58e6 2283 (bfd *, struct bfd_link_info *);
2f0c68f2
CM
2284extern asection *_bfd_elf_section_for_symbol
2285 (struct elf_reloc_cookie *, unsigned long, bfd_boolean);
d98685ac
AM
2286extern struct elf_link_hash_entry *_bfd_elf_define_linkage_sym
2287 (bfd *, struct bfd_link_info *, asection *, const char *);
74541ad4
AM
2288extern void _bfd_elf_init_1_index_section
2289 (bfd *, struct bfd_link_info *);
2290extern void _bfd_elf_init_2_index_sections
2291 (bfd *, struct bfd_link_info *);
dc810e39 2292
b34976b6 2293extern bfd_boolean _bfd_elfcore_make_pseudosection
c39a58e6 2294 (bfd *, char *, size_t, ufile_ptr);
dc810e39 2295extern char *_bfd_elfcore_strndup
c39a58e6 2296 (bfd *, char *, size_t);
dc810e39 2297
45d6a902 2298extern Elf_Internal_Rela *_bfd_elf_link_read_relocs
c39a58e6 2299 (bfd *, asection *, void *, Elf_Internal_Rela *, bfd_boolean);
45d6a902 2300
45d6a902 2301extern bfd_boolean _bfd_elf_link_output_relocs
eac338cf
PB
2302 (bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *,
2303 struct elf_link_hash_entry **);
45d6a902 2304
027297b7 2305extern bfd_boolean _bfd_elf_adjust_dynamic_copy
6cabe1ea 2306 (struct bfd_link_info *, struct elf_link_hash_entry *, asection *);
027297b7 2307
986a241f 2308extern bfd_boolean _bfd_elf_dynamic_symbol_p
c39a58e6 2309 (struct elf_link_hash_entry *, struct bfd_link_info *, bfd_boolean);
f6c52c13
AM
2310
2311extern bfd_boolean _bfd_elf_symbol_refs_local_p
c39a58e6 2312 (struct elf_link_hash_entry *, struct bfd_link_info *, bfd_boolean);
986a241f 2313
cdfeee4f 2314extern bfd_reloc_status_type bfd_elf_perform_complex_relocation
0f02bbd9 2315 (bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, bfd_vma);
d9352518 2316
dd863624 2317extern bfd_boolean _bfd_elf_setup_sections
3d7f7666
L
2318 (bfd *);
2319
7dba9362
AM
2320extern struct bfd_link_hash_entry *bfd_elf_define_start_stop
2321 (struct bfd_link_info *, const char *, asection *);
2322
78245035 2323extern void _bfd_elf_post_process_headers (bfd * , struct bfd_link_info *);
d1036acb 2324
dc810e39 2325extern const bfd_target *bfd_elf32_object_p
c39a58e6 2326 (bfd *);
dc810e39 2327extern const bfd_target *bfd_elf32_core_file_p
c39a58e6 2328 (bfd *);
dc810e39 2329extern char *bfd_elf32_core_file_failing_command
c39a58e6 2330 (bfd *);
dc810e39 2331extern int bfd_elf32_core_file_failing_signal
c39a58e6 2332 (bfd *);
b34976b6 2333extern bfd_boolean bfd_elf32_core_file_matches_executable_p
c39a58e6 2334 (bfd *, bfd *);
261b8d08
PA
2335extern int bfd_elf32_core_file_pid
2336 (bfd *);
252b5132 2337
8384fb8f 2338extern bfd_boolean bfd_elf32_swap_symbol_in
c39a58e6 2339 (bfd *, const void *, const void *, Elf_Internal_Sym *);
252b5132 2340extern void bfd_elf32_swap_symbol_out
c39a58e6 2341 (bfd *, const Elf_Internal_Sym *, void *, void *);
252b5132 2342extern void bfd_elf32_swap_reloc_in
c39a58e6 2343 (bfd *, const bfd_byte *, Elf_Internal_Rela *);
252b5132 2344extern void bfd_elf32_swap_reloc_out
c39a58e6 2345 (bfd *, const Elf_Internal_Rela *, bfd_byte *);
252b5132 2346extern void bfd_elf32_swap_reloca_in
c39a58e6 2347 (bfd *, const bfd_byte *, Elf_Internal_Rela *);
252b5132 2348extern void bfd_elf32_swap_reloca_out
c39a58e6 2349 (bfd *, const Elf_Internal_Rela *, bfd_byte *);
252b5132 2350extern void bfd_elf32_swap_phdr_in
c39a58e6 2351 (bfd *, const Elf32_External_Phdr *, Elf_Internal_Phdr *);
252b5132 2352extern void bfd_elf32_swap_phdr_out
c39a58e6 2353 (bfd *, const Elf_Internal_Phdr *, Elf32_External_Phdr *);
252b5132 2354extern void bfd_elf32_swap_dyn_in
c39a58e6 2355 (bfd *, const void *, Elf_Internal_Dyn *);
252b5132 2356extern void bfd_elf32_swap_dyn_out
c39a58e6 2357 (bfd *, const Elf_Internal_Dyn *, void *);
252b5132 2358extern long bfd_elf32_slurp_symbol_table
c39a58e6 2359 (bfd *, asymbol **, bfd_boolean);
b34976b6 2360extern bfd_boolean bfd_elf32_write_shdrs_and_ehdr
c39a58e6 2361 (bfd *);
252b5132 2362extern int bfd_elf32_write_out_phdrs
c39a58e6 2363 (bfd *, const Elf_Internal_Phdr *, unsigned int);
20a761b5
RM
2364extern bfd_boolean bfd_elf32_checksum_contents
2365 (bfd * , void (*) (const void *, size_t, void *), void *);
b9f66672 2366extern void bfd_elf32_write_relocs
c39a58e6 2367 (bfd *, asection *, void *);
b34976b6 2368extern bfd_boolean bfd_elf32_slurp_reloc_table
c39a58e6 2369 (bfd *, asection *, asymbol **, bfd_boolean);
252b5132 2370
dc810e39 2371extern const bfd_target *bfd_elf64_object_p
c39a58e6 2372 (bfd *);
dc810e39 2373extern const bfd_target *bfd_elf64_core_file_p
c39a58e6 2374 (bfd *);
dc810e39 2375extern char *bfd_elf64_core_file_failing_command
c39a58e6 2376 (bfd *);
dc810e39 2377extern int bfd_elf64_core_file_failing_signal
c39a58e6 2378 (bfd *);
b34976b6 2379extern bfd_boolean bfd_elf64_core_file_matches_executable_p
c39a58e6 2380 (bfd *, bfd *);
261b8d08
PA
2381extern int bfd_elf64_core_file_pid
2382 (bfd *);
252b5132 2383
8384fb8f 2384extern bfd_boolean bfd_elf64_swap_symbol_in
c39a58e6 2385 (bfd *, const void *, const void *, Elf_Internal_Sym *);
252b5132 2386extern void bfd_elf64_swap_symbol_out
c39a58e6 2387 (bfd *, const Elf_Internal_Sym *, void *, void *);
252b5132 2388extern void bfd_elf64_swap_reloc_in
c39a58e6 2389 (bfd *, const bfd_byte *, Elf_Internal_Rela *);
252b5132 2390extern void bfd_elf64_swap_reloc_out
c39a58e6 2391 (bfd *, const Elf_Internal_Rela *, bfd_byte *);
252b5132 2392extern void bfd_elf64_swap_reloca_in
c39a58e6 2393 (bfd *, const bfd_byte *, Elf_Internal_Rela *);
252b5132 2394extern void bfd_elf64_swap_reloca_out
c39a58e6 2395 (bfd *, const Elf_Internal_Rela *, bfd_byte *);
252b5132 2396extern void bfd_elf64_swap_phdr_in
c39a58e6 2397 (bfd *, const Elf64_External_Phdr *, Elf_Internal_Phdr *);
252b5132 2398extern void bfd_elf64_swap_phdr_out
c39a58e6 2399 (bfd *, const Elf_Internal_Phdr *, Elf64_External_Phdr *);
252b5132 2400extern void bfd_elf64_swap_dyn_in
c39a58e6 2401 (bfd *, const void *, Elf_Internal_Dyn *);
252b5132 2402extern void bfd_elf64_swap_dyn_out
c39a58e6 2403 (bfd *, const Elf_Internal_Dyn *, void *);
252b5132 2404extern long bfd_elf64_slurp_symbol_table
c39a58e6 2405 (bfd *, asymbol **, bfd_boolean);
b34976b6 2406extern bfd_boolean bfd_elf64_write_shdrs_and_ehdr
c39a58e6 2407 (bfd *);
252b5132 2408extern int bfd_elf64_write_out_phdrs
c39a58e6 2409 (bfd *, const Elf_Internal_Phdr *, unsigned int);
20a761b5
RM
2410extern bfd_boolean bfd_elf64_checksum_contents
2411 (bfd * , void (*) (const void *, size_t, void *), void *);
b9f66672 2412extern void bfd_elf64_write_relocs
c39a58e6 2413 (bfd *, asection *, void *);
b34976b6 2414extern bfd_boolean bfd_elf64_slurp_reloc_table
c39a58e6 2415 (bfd *, asection *, asymbol **, bfd_boolean);
5a580b3a 2416
13285a1b
AM
2417extern bfd_boolean _bfd_elf_default_relocs_compatible
2418 (const bfd_target *, const bfd_target *);
2419
2420extern bfd_boolean _bfd_elf_relocs_compatible
2421 (const bfd_target *, const bfd_target *);
e5034e59
AM
2422extern bfd_boolean _bfd_elf_notice_as_needed
2423 (bfd *, struct bfd_link_info *, enum notice_asneeded_action);
13285a1b 2424
8387904d
AM
2425extern struct elf_link_hash_entry *_bfd_elf_archive_symbol_lookup
2426 (bfd *, struct bfd_link_info *, const char *);
4ad4eba5
AM
2427extern bfd_boolean bfd_elf_link_add_symbols
2428 (bfd *, struct bfd_link_info *);
5a580b3a 2429extern bfd_boolean _bfd_elf_add_dynamic_entry
c39a58e6 2430 (struct bfd_link_info *, bfd_vma, bfd_vma);
d9689752
L
2431extern bfd_boolean _bfd_elf_link_check_relocs
2432 (bfd *, struct bfd_link_info *);
252b5132 2433
c152c796
AM
2434extern bfd_boolean bfd_elf_link_record_dynamic_symbol
2435 (struct bfd_link_info *, struct elf_link_hash_entry *);
30b30c21 2436
c152c796 2437extern int bfd_elf_link_record_local_dynamic_symbol
c39a58e6 2438 (struct bfd_link_info *, bfd *, long);
252b5132 2439
b34976b6 2440extern bfd_boolean _bfd_elf_close_and_cleanup
c39a58e6 2441 (bfd *);
35330cce 2442
a4d8e49b
L
2443extern bfd_boolean _bfd_elf_common_definition
2444 (Elf_Internal_Sym *);
2445
2446extern unsigned int _bfd_elf_common_section_index
2447 (asection *);
2448
2449extern asection *_bfd_elf_common_section
2450 (asection *);
2451
10455f89
HPN
2452extern bfd_vma _bfd_elf_default_got_elt_size
2453(bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, bfd *,
2454 unsigned long);
2455
252b5132 2456extern bfd_reloc_status_type _bfd_elf_rel_vtable_reloc_fn
fc0a2244 2457 (bfd *, arelent *, struct bfd_symbol *, void *,
c39a58e6 2458 asection *, bfd *, char **);
252b5132 2459
c152c796 2460extern bfd_boolean bfd_elf_final_link
c39a58e6 2461 (bfd *, struct bfd_link_info *);
c152c796 2462
74f0fb50
AM
2463extern void _bfd_elf_gc_keep
2464 (struct bfd_link_info *info);
2465
64d03ab5
AM
2466extern bfd_boolean bfd_elf_gc_mark_dynamic_ref_symbol
2467 (struct elf_link_hash_entry *h, void *inf);
2468
c152c796 2469extern bfd_boolean bfd_elf_gc_sections
c39a58e6 2470 (bfd *, struct bfd_link_info *);
c152c796
AM
2471
2472extern bfd_boolean bfd_elf_gc_record_vtinherit
c39a58e6 2473 (bfd *, asection *, struct elf_link_hash_entry *, bfd_vma);
c152c796
AM
2474
2475extern bfd_boolean bfd_elf_gc_record_vtentry
c39a58e6 2476 (bfd *, asection *, struct elf_link_hash_entry *, bfd_vma);
252b5132 2477
07adf181
AM
2478extern asection *_bfd_elf_gc_mark_hook
2479 (asection *, struct bfd_link_info *, Elf_Internal_Rela *,
2480 struct elf_link_hash_entry *, Elf_Internal_Sym *);
2481
5241d853
RS
2482extern asection *_bfd_elf_gc_mark_rsec
2483 (struct bfd_link_info *, asection *, elf_gc_mark_hook_fn,
1cce69b9 2484 struct elf_reloc_cookie *, bfd_boolean *);
5241d853
RS
2485
2486extern bfd_boolean _bfd_elf_gc_mark_reloc
2487 (struct bfd_link_info *, asection *, elf_gc_mark_hook_fn,
9d0a14d3
RS
2488 struct elf_reloc_cookie *);
2489
2490extern bfd_boolean _bfd_elf_gc_mark_fdes
2491 (struct bfd_link_info *, asection *, asection *, elf_gc_mark_hook_fn,
2492 struct elf_reloc_cookie *);
5241d853 2493
ccfa59ea 2494extern bfd_boolean _bfd_elf_gc_mark
5241d853 2495 (struct bfd_link_info *, asection *, elf_gc_mark_hook_fn);
ccfa59ea 2496
7f6ab9f8
AM
2497extern bfd_boolean _bfd_elf_gc_mark_extra_sections
2498 (struct bfd_link_info *, elf_gc_mark_hook_fn);
2499
c152c796 2500extern bfd_boolean bfd_elf_gc_common_finalize_got_offsets
c39a58e6 2501 (bfd *, struct bfd_link_info *);
c152c796
AM
2502
2503extern bfd_boolean bfd_elf_gc_common_final_link
c39a58e6 2504 (bfd *, struct bfd_link_info *);
252b5132 2505
c152c796 2506extern bfd_boolean bfd_elf_reloc_symbol_deleted_p
c39a58e6 2507 (bfd_vma, void *);
73d074b4 2508
8ded5a0f 2509extern struct elf_segment_map * _bfd_elf_make_dynamic_segment
229fcec5
MM
2510 (bfd *, asection *);
2511
8ded5a0f
AM
2512extern bfd_boolean _bfd_elf_map_sections_to_segments
2513 (bfd *, struct bfd_link_info *);
2514
fcb93ecf
PB
2515extern bfd_boolean _bfd_elf_is_function_type (unsigned int);
2516
aef36ac1
AM
2517extern bfd_size_type _bfd_elf_maybe_function_sym (const asymbol *, asection *,
2518 bfd_vma *);
9f296da3 2519
bce964aa 2520extern asection *_bfd_elf_plt_get_reloc_section (bfd *, const char *);
bd53a53a 2521
94be91de
JB
2522extern int bfd_elf_get_default_section_type (flagword);
2523
b9c361e0
JL
2524extern bfd_boolean bfd_elf_lookup_section_flags
2525 (struct bfd_link_info *, struct flag_info *, asection *);
ae17ab41 2526
2ea37f1c
NC
2527extern Elf_Internal_Phdr * _bfd_elf_find_segment_containing_section
2528 (bfd * abfd, asection * section);
2529
14b57c7c
AM
2530/* PowerPC @tls opcode transform/validate. */
2531extern unsigned int _bfd_elf_ppc_at_tls_transform
2532 (unsigned int, unsigned int);
2533/* PowerPC @tprel opcode transform/validate. */
2534extern unsigned int _bfd_elf_ppc_at_tprel_transform
2535 (unsigned int, unsigned int);
2536/* PowerPC elf_object_p tweak. */
2537extern bfd_boolean _bfd_elf_ppc_set_arch (bfd *);
005d79fd 2538/* PowerPC .gnu.attributes handling common to both 32-bit and 64-bit. */
50e03d47 2539extern void _bfd_elf_ppc_merge_fp_attributes (bfd *, struct bfd_link_info *);
14b57c7c 2540
9eaff861 2541/* Exported interface for writing elf corefile notes. */
d4c88bbb 2542extern char *elfcore_write_note
c39a58e6 2543 (bfd *, char *, int *, const char *, int, const void *, int);
d4c88bbb 2544extern char *elfcore_write_prpsinfo
c39a58e6 2545 (bfd *, char *, int *, const char *, const char *);
d4c88bbb 2546extern char *elfcore_write_prstatus
c39a58e6 2547 (bfd *, char *, int *, long, int, const void *);
d4c88bbb 2548extern char * elfcore_write_pstatus
c39a58e6 2549 (bfd *, char *, int *, long, int, const void *);
d4c88bbb 2550extern char *elfcore_write_prfpreg
c39a58e6 2551 (bfd *, char *, int *, const void *, int);
d4c88bbb 2552extern char *elfcore_write_prxfpreg
c39a58e6 2553 (bfd *, char *, int *, const void *, int);
4339cae0
L
2554extern char *elfcore_write_xstatereg
2555 (bfd *, char *, int *, const void *, int);
97753bd5
AM
2556extern char *elfcore_write_ppc_vmx
2557 (bfd *, char *, int *, const void *, int);
89eeb0bc
LM
2558extern char *elfcore_write_ppc_vsx
2559 (bfd *, char *, int *, const void *, int);
d7eeb400
MS
2560extern char *elfcore_write_s390_timer
2561 (bfd *, char *, int *, const void *, int);
2562extern char *elfcore_write_s390_todcmp
2563 (bfd *, char *, int *, const void *, int);
2564extern char *elfcore_write_s390_todpreg
2565 (bfd *, char *, int *, const void *, int);
2566extern char *elfcore_write_s390_ctrs
2567 (bfd *, char *, int *, const void *, int);
2568extern char *elfcore_write_s390_prefix
2569 (bfd *, char *, int *, const void *, int);
355b81d9
UW
2570extern char *elfcore_write_s390_last_break
2571 (bfd *, char *, int *, const void *, int);
2572extern char *elfcore_write_s390_system_call
2573 (bfd *, char *, int *, const void *, int);
abb3f6cc
NC
2574extern char *elfcore_write_s390_tdb
2575 (bfd *, char *, int *, const void *, int);
4ef9f41a
AA
2576extern char *elfcore_write_s390_vxrs_low
2577 (bfd *, char *, int *, const void *, int);
2578extern char *elfcore_write_s390_vxrs_high
2579 (bfd *, char *, int *, const void *, int);
88ab90e8
AA
2580extern char *elfcore_write_s390_gs_cb
2581 (bfd *, char *, int *, const void *, int);
2582extern char *elfcore_write_s390_gs_bc
2583 (bfd *, char *, int *, const void *, int);
faa9a424
UW
2584extern char *elfcore_write_arm_vfp
2585 (bfd *, char *, int *, const void *, int);
652451f8
YZ
2586extern char *elfcore_write_aarch_tls
2587 (bfd *, char *, int *, const void *, int);
2588extern char *elfcore_write_aarch_hw_break
2589 (bfd *, char *, int *, const void *, int);
2590extern char *elfcore_write_aarch_hw_watch
2591 (bfd *, char *, int *, const void *, int);
d4c88bbb 2592extern char *elfcore_write_lwpstatus
c39a58e6 2593 (bfd *, char *, int *, long, int, const void *);
bb864ac1
CES
2594extern char *elfcore_write_register_note
2595 (bfd *, char *, int *, const char *, const void *, int);
7c76fa91 2596
70a38d42
SDJ
2597/* Internal structure which holds information to be included in the
2598 PRPSINFO section of Linux core files.
2599
2600 This is an "internal" structure in the sense that it should be used
2601 to pass information to BFD (via the `elfcore_write_linux_prpsinfo'
2602 function), so things like endianess shouldn't be an issue. This
2603 structure will eventually be converted in one of the
2604 `elf_external_linux_*' structures and written out to an output bfd
2605 by one of the functions declared below. */
2606
2607struct elf_internal_linux_prpsinfo
2608 {
2609 char pr_state; /* Numeric process state. */
2610 char pr_sname; /* Char for pr_state. */
2611 char pr_zomb; /* Zombie. */
2612 char pr_nice; /* Nice val. */
2613 unsigned long pr_flag; /* Flags. */
2614 unsigned int pr_uid;
2615 unsigned int pr_gid;
2616 int pr_pid, pr_ppid, pr_pgrp, pr_sid;
2617 char pr_fname[16 + 1]; /* Filename of executable. */
2618 char pr_psargs[80 + 1]; /* Initial part of arg list. */
2619 };
2620
2621/* Linux/most 32-bit archs. */
2622extern char *elfcore_write_linux_prpsinfo32
2623 (bfd *, char *, int *, const struct elf_internal_linux_prpsinfo *);
2624
2625/* Linux/most 64-bit archs. */
2626extern char *elfcore_write_linux_prpsinfo64
2627 (bfd *, char *, int *, const struct elf_internal_linux_prpsinfo *);
2628
8d6337fe 2629extern bfd *_bfd_elf32_bfd_from_remote_memory
f0a5d95a 2630 (bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep,
fe78531d 2631 int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type));
8d6337fe 2632extern bfd *_bfd_elf64_bfd_from_remote_memory
f0a5d95a 2633 (bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep,
fe78531d 2634 int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type));
8d6337fe 2635
104d59d1
JM
2636extern bfd_vma bfd_elf_obj_attr_size (bfd *);
2637extern void bfd_elf_set_obj_attr_contents (bfd *, bfd_byte *, bfd_vma);
5ee4a1ca
NC
2638extern int bfd_elf_get_obj_attr_int (bfd *, int, unsigned int);
2639extern void bfd_elf_add_obj_attr_int (bfd *, int, unsigned int, unsigned int);
104d59d1
JM
2640#define bfd_elf_add_proc_attr_int(BFD, TAG, VALUE) \
2641 bfd_elf_add_obj_attr_int ((BFD), OBJ_ATTR_PROC, (TAG), (VALUE))
5ee4a1ca 2642extern void bfd_elf_add_obj_attr_string (bfd *, int, unsigned int, const char *);
104d59d1
JM
2643#define bfd_elf_add_proc_attr_string(BFD, TAG, VALUE) \
2644 bfd_elf_add_obj_attr_string ((BFD), OBJ_ATTR_PROC, (TAG), (VALUE))
5ee4a1ca
NC
2645extern void bfd_elf_add_obj_attr_int_string (bfd *, int, unsigned int,
2646 unsigned int, const char *);
7b86a9fa
AS
2647#define bfd_elf_add_proc_attr_int_string(BFD, TAG, INTVAL, STRVAL) \
2648 bfd_elf_add_obj_attr_int_string ((BFD), OBJ_ATTR_PROC, (TAG), \
2649 (INTVAL), (STRVAL))
104d59d1
JM
2650
2651extern char *_bfd_elf_attr_strdup (bfd *, const char *);
2652extern void _bfd_elf_copy_obj_attributes (bfd *, bfd *);
5ee4a1ca 2653extern int _bfd_elf_obj_attrs_arg_type (bfd *, int, unsigned int);
104d59d1 2654extern void _bfd_elf_parse_attributes (bfd *, Elf_Internal_Shdr *);
50e03d47
AM
2655extern bfd_boolean _bfd_elf_merge_object_attributes
2656 (bfd *, struct bfd_link_info *);
e8b36cd1
JM
2657extern bfd_boolean _bfd_elf_merge_unknown_attribute_low (bfd *, bfd *, int);
2658extern bfd_boolean _bfd_elf_merge_unknown_attribute_list (bfd *, bfd *);
d4730f92 2659extern Elf_Internal_Shdr *_bfd_elf_single_rel_hdr (asection *sec);
104d59d1 2660
46bed679
L
2661extern bfd_boolean _bfd_elf_parse_gnu_properties
2662 (bfd *, Elf_Internal_Note *);
2663extern elf_property * _bfd_elf_get_property
2664 (bfd *, unsigned int, unsigned int);
fba37edd 2665extern bfd *_bfd_elf_link_setup_gnu_properties
46bed679
L
2666 (struct bfd_link_info *);
2667
6061a67d 2668/* The linker may need to keep track of the number of relocs that it
e03a8ed8
L
2669 decides to copy as dynamic relocs in check_relocs for each symbol.
2670 This is so that it can later discard them if they are found to be
2671 unnecessary. We can store the information in a field extending the
2672 regular ELF linker hash table. */
2673
2674struct elf_dyn_relocs
2675{
2676 struct elf_dyn_relocs *next;
2677
2678 /* The input section of the reloc. */
2679 asection *sec;
2680
2681 /* Total number of relocs copied for the input section. */
2682 bfd_size_type count;
2683
2684 /* Number of pc-relative relocs copied for the input section. */
2685 bfd_size_type pc_count;
2686};
2687
2a81c24a 2688extern bfd_boolean _bfd_elf_create_ifunc_sections
3aa14d16 2689 (bfd *, struct bfd_link_info *);
e03a8ed8
L
2690extern bfd_boolean _bfd_elf_allocate_ifunc_dyn_relocs
2691 (struct bfd_link_info *, struct elf_link_hash_entry *,
2df3368d 2692 struct elf_dyn_relocs **, bfd_boolean *, unsigned int,
233cc9c1 2693 unsigned int, unsigned int, bfd_boolean);
d8045f23 2694
351f65ca
L
2695extern void elf_append_rela (bfd *, asection *, Elf_Internal_Rela *);
2696extern void elf_append_rel (bfd *, asection *, Elf_Internal_Rela *);
2697
2698extern bfd_vma elf64_r_info (bfd_vma, bfd_vma);
2699extern bfd_vma elf64_r_sym (bfd_vma);
2700extern bfd_vma elf32_r_info (bfd_vma, bfd_vma);
2701extern bfd_vma elf32_r_sym (bfd_vma);
2702
3b22753a
L
2703/* Large common section. */
2704extern asection _bfd_elf_large_com_section;
2705
d2149d72
L
2706/* Hash for local symbol with the first section id, ID, in the input
2707 file and the local symbol index, SYM. */
2708#define ELF_LOCAL_SYMBOL_HASH(ID, SYM) \
2709 (((((ID) & 0xff) << 24) | (((ID) & 0xff00) << 8)) \
2710 ^ (SYM) ^ ((ID) >> 16))
2711
c152c796
AM
2712/* This is the condition under which finish_dynamic_symbol will be called.
2713 If our finish_dynamic_symbol isn't called, we'll need to do something
2714 about initializing any .plt and .got entries in relocate_section. */
2715#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
2716 ((DYN) \
f5385ebf
AM
2717 && ((SHARED) || !(H)->forced_local) \
2718 && ((H)->dynindx != -1 || (H)->forced_local))
c152c796 2719
560e09e9
NC
2720/* This macro is to avoid lots of duplicated code in the body
2721 of xxx_relocate_section() in the various elfxx-xxxx.c files. */
b2a8e766
AM
2722#define RELOC_FOR_GLOBAL_SYMBOL(info, input_bfd, input_section, rel, \
2723 r_symndx, symtab_hdr, sym_hashes, \
2724 h, sec, relocation, \
62d887d4 2725 unresolved_reloc, warned, ignored) \
b2a8e766
AM
2726 do \
2727 { \
2728 /* It seems this can happen with erroneous or unsupported \
2729 input (mixing a.out and elf in an archive, for example.) */ \
2730 if (sym_hashes == NULL) \
2731 return FALSE; \
2732 \
2733 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; \
2734 \
8a5da09b
AM
2735 if (info->wrap_hash != NULL \
2736 && (input_section->flags & SEC_DEBUGGING) != 0) \
2737 h = ((struct elf_link_hash_entry *) \
2738 unwrap_hash_lookup (info, input_bfd, &h->root)); \
2739 \
b2a8e766
AM
2740 while (h->root.type == bfd_link_hash_indirect \
2741 || h->root.type == bfd_link_hash_warning) \
2742 h = (struct elf_link_hash_entry *) h->root.u.i.link; \
2743 \
2744 warned = FALSE; \
62d887d4 2745 ignored = FALSE; \
b2a8e766
AM
2746 unresolved_reloc = FALSE; \
2747 relocation = 0; \
2748 if (h->root.type == bfd_link_hash_defined \
2749 || h->root.type == bfd_link_hash_defweak) \
2750 { \
2751 sec = h->root.u.def.section; \
2752 if (sec == NULL \
2753 || sec->output_section == NULL) \
2754 /* Set a flag that will be cleared later if we find a \
2755 relocation value for this symbol. output_section \
2756 is typically NULL for symbols satisfied by a shared \
2757 library. */ \
2758 unresolved_reloc = TRUE; \
2759 else \
2760 relocation = (h->root.u.def.value \
2761 + sec->output_section->vma \
2762 + sec->output_offset); \
2763 } \
2764 else if (h->root.type == bfd_link_hash_undefweak) \
2765 ; \
2766 else if (info->unresolved_syms_in_objects == RM_IGNORE \
2767 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) \
62d887d4 2768 ignored = TRUE; \
0e1862bb 2769 else if (!bfd_link_relocatable (info)) \
b2a8e766 2770 { \
5a580b3a
AM
2771 bfd_boolean err; \
2772 err = (info->unresolved_syms_in_objects == RM_GENERATE_ERROR \
2773 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT); \
1a72702b
AM
2774 (*info->callbacks->undefined_symbol) (info, \
2775 h->root.root.string, \
2776 input_bfd, \
2777 input_section, \
2778 rel->r_offset, err); \
b2a8e766
AM
2779 warned = TRUE; \
2780 } \
c7e2358a
AM
2781 (void) unresolved_reloc; \
2782 (void) warned; \
62d887d4 2783 (void) ignored; \
b2a8e766 2784 } \
560e09e9
NC
2785 while (0)
2786
0672748a
L
2787/* This macro is to avoid lots of duplicated code in the body of the
2788 loop over relocations in xxx_relocate_section() in the various
2789 elfxx-xxxx.c files.
23209a78 2790
0672748a
L
2791 Handle relocations against symbols from removed linkonce sections,
2792 or sections discarded by a linker script. When doing a relocatable
2793 link, we remove such relocations. Otherwise, we just want the
2794 section contents zeroed and avoid any special processing. */
2795#define RELOC_AGAINST_DISCARDED_SECTION(info, input_bfd, input_section, \
545fd46b
MR
2796 rel, count, relend, \
2797 howto, index, contents) \
0672748a 2798 { \
a134cc9b 2799 int i_; \
e4067dbb 2800 _bfd_clear_contents (howto, input_bfd, input_section, \
545fd46b 2801 contents + rel[index].r_offset); \
e4067dbb 2802 \
0e1862bb 2803 if (bfd_link_relocatable (info) \
0672748a
L
2804 && (input_section->flags & SEC_DEBUGGING)) \
2805 { \
2806 /* Only remove relocations in debug sections since other \
2807 sections may require relocations. */ \
2808 Elf_Internal_Shdr *rel_hdr; \
2809 \
d4730f92 2810 rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); \
0672748a
L
2811 \
2812 /* Avoid empty output section. */ \
86f7d49b 2813 if (rel_hdr->sh_size > rel_hdr->sh_entsize) \
0672748a 2814 { \
86f7d49b 2815 rel_hdr->sh_size -= rel_hdr->sh_entsize; \
d4730f92 2816 rel_hdr = _bfd_elf_single_rel_hdr (input_section); \
86f7d49b 2817 rel_hdr->sh_size -= rel_hdr->sh_entsize; \
0672748a 2818 \
545fd46b
MR
2819 memmove (rel, rel + count, \
2820 (relend - rel - count) * sizeof (*rel)); \
0672748a 2821 \
056bafd4 2822 input_section->reloc_count -= count; \
545fd46b 2823 relend -= count; \
0672748a
L
2824 rel--; \
2825 continue; \
2826 } \
2827 } \
2828 \
a134cc9b 2829 for (i_ = 0; i_ < count; i_++) \
545fd46b 2830 { \
a134cc9b
HPN
2831 rel[i_].r_info = 0; \
2832 rel[i_].r_addend = 0; \
545fd46b
MR
2833 } \
2834 rel += count - 1; \
0672748a
L
2835 continue; \
2836 }
2837
a8685210 2838/* Will a symbol be bound to the definition within the shared
6f8bcf84 2839 library, if any. A unique symbol can never be bound locally. */
55255dae 2840#define SYMBOLIC_BIND(INFO, H) \
6f8bcf84 2841 (!(H)->unique_global \
487b6440
AM
2842 && ((INFO)->symbolic \
2843 || (H)->start_stop \
2844 || ((INFO)->dynamic && !(H)->dynamic)))
55255dae 2845
55172d69
PA
2846#ifdef __cplusplus
2847}
2848#endif
252b5132 2849#endif /* _LIBELF_H_ */
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